JP6561430B2 - Vehicle washer pump device - Google Patents

Description

  The present invention relates to a vehicle washer pump device.

  In the vehicle washer pump device, there is a so-called double outlet pump including a pair of outlets (see, for example, Patent Document 1 below). That is, in this vehicle washer pump device, a pair of outlets is formed in a housing that houses a motor, and a valve device is mounted on the pair of outlets. Then, the impeller supported by the rotation shaft of the motor rotates to one side in the rotation direction or the other side in the rotation direction so that liquid (cleaning liquid) is alternatively discharged from the pair of discharge ports of the valve device. It has become.

JP 2012-44814 A

  By the way, in the said vehicle washer pump apparatus, the valve apparatus with which the outlet was mounted | worn protrudes in the radial direction outer side of the housing from the axial direction one end part (lower end part) of the housing. Then, in a state where the vehicle washer pump device is assembled to the washer tank, the valve device protrudes from the housing to the opposite side of the washer tank. For this reason, for example, when a vehicle component hits the lower part of the valve device when the washer tank is assembled to the vehicle, an upward external force is input to the valve device. And when this external force is comparatively large, there exists a possibility that a valve apparatus may remove | deviate from a pair of outlet.

  An object of the present invention is to provide a vehicular washer pump device that can improve the protection performance of the valve device in consideration of the above facts.

A vehicle washer pump device according to the present invention includes a motor chamber that is formed in a cylindrical shape and accommodates a motor therein, and a pump chamber that accommodates an impeller that is pivotally supported on a rotation shaft of the motor. a housing having, is projected from an outer peripheral portion of said pump chamber in said housing, a pair of outlets which are communicated with the pump chamber, a pair of inlet portions to be assembled to a pair of said outlet, said housing relative to said housing A main body portion disposed on one side in a first orthogonal direction orthogonal to the axis of the first, and a first discharge portion and a second discharge portion extending from the main body portion, and the impeller rotates to rotate the impeller a valve device for the liquid in the pump chamber is discharged from said flow from a pair of inlet portions of the first discharge unit or the second discharge portion, the pair of out and the pair of inlet And support portion Tsu Doo and holds the body portion of the valve device in a state of being assembled, wherein disposed on the housing side with respect to the support portion, before SL that is assembled to the outer periphery of the housing mounting portion And a valve support.

  According to the vehicle washer pump device having the above-described configuration, the motor is housed in the motor chamber of the cylindrical housing. A motor chamber and a pump chamber are formed in the housing, and an impeller that is pivotally supported so as to be integrally rotatable with a rotation shaft of the motor is accommodated in the pump chamber. A pair of outlets is formed on the outer peripheral portion of the pump chamber in the housing, and the pair of outlets communicates with the pump chamber.

  Furthermore, the main body of the valve device is assembled to the pair of outlets, and the main body protrudes from the housing to one side in the first orthogonal direction orthogonal to the axis of the housing. Further, the valve device has a first discharge part and a second discharge part, and the first discharge part and the second discharge part are extended from the main body part. And if an impeller rotates, the liquid in a pump chamber will be discharged from a 1st discharge part or a 2nd discharge part.

  Here, the valve support is assembled | attached to the housing, and the valve support hold | maintains the main-body part with respect to the housing. For this reason, the valve device can be protected from the external force by the valve support. Thereby, the protection performance with respect to a valve apparatus can be improved.

In the vehicle washer pump device of the present invention, in addition to the above configuration, a pair of fitted portions spaced apart in the circumferential direction of the housing are formed on the outer peripheral portion of the housing, and the mounting of the valve support is performed. The part is formed with a pair of fitting parts to be fitted to the fitted part, and the fitted part and the fitting part are engaged in the axial direction of the housing and the first orthogonal direction. It is configured to be possible.

  According to the vehicle washer pump device configured as described above, the pair of fitted portions formed on the outer peripheral portion of the housing and the pair of fitting portions formed on the valve support are fitted. And a to-be-fitted part and a fitting part are comprised so that engagement in the axial direction of a housing and a 1st orthogonal direction is possible. Thereby, the position with respect to the housing of a valve support can be determined with a to-be-fitted part and a fitting part in the state in which the valve support was assembled | attached to the housing. Furthermore, since the fitted portion and the fitting portion are engaged when an external force is input to the valve support, the external force can be transmitted from the fitting portion to the fitted portion. Thereby, the external force can be received in a relatively strong housing.

In the vehicle washer pump device of the present invention, in addition to the above configuration, the first discharge portion and the second discharge portion are second orthogonal to each other perpendicular to the first orthogonal direction when viewed from the axial direction of the housing. The valve support is configured to include a first support and a second support which are extended from the main body portion in a direction away from each other along the direction, and the support portion is divided into two in the second orthogonal direction. And the said 1st support and the said 2nd support are each formed with the insertion part by which the said 1st discharge part or the said 2nd discharge part was penetrated.

  According to the vehicle washer pump device having the above configuration, the first discharge portion and the second discharge portion are separated from each other along the second orthogonal direction orthogonal to the first orthogonal direction when viewed from the axial direction of the housing. It extends from the main body in the direction.

  Here, the valve support is configured to include a first support and a second support, and the first support and the second support are configured to be divided into two in the second orthogonal direction. And the insertion part by which the 1st discharge part or the 2nd discharge part of a valve apparatus is each inserted in the 1st support and the 2nd support is formed. For this reason, the main body part of the valve device can be configured to be sandwiched between the first support and the second support in the second orthogonal direction in a state where the first discharge part and the second discharge part are exposed from the valve support. As a result, it is possible to facilitate assembly while maintaining the protection performance for the valve device.

  In the vehicle washer pump device of the present invention, in addition to the above-described configuration, a pressing portion configured to be elastically deformable in the first orthogonal direction is formed on at least one of the first support and the second support. In the assembled state of the valve support to the housing, the pressing portion is in contact with the outer peripheral portion of the housing in an elastically deformed state.

  According to the vehicle washer pump device having the above-described configuration, the pressing portion is formed on at least one of the first support and the second support. The presser portion is configured to be elastically deformable in the first orthogonal direction. When the valve support is assembled to the housing, the presser portion is in contact with the outer peripheral portion of the housing while being elastically deformed. For this reason, in a state where the valve support is assembled to the housing, it is possible to suppress the backlash of the valve support in the first orthogonal direction.

  In the vehicle washer pump device of the present invention, in addition to the above-described configuration, the pressing portion is disposed between the pair of fitted portions.

  According to the vehicle washer pump device having the above-described configuration, since the presser portion is disposed between the pair of fitted portions, the engaged state between the fitted portion and the fitted portion can be improved. .

  In the vehicle washer pump device according to the present invention, in addition to the above configuration, at least one of the first support and the second support has an engaging claw that is engaged with the valve device in the second orthogonal direction. Is formed.

  According to the vehicle washer pump device having the above-described configuration, the engagement claw is formed on at least one of the first support and the second support, and the engagement claw is engaged with the valve device in the second orthogonal direction. Yes. For this reason, for example, when the first support is assembled to the housing before the second support when the first support and the second support are assembled to the housing, an engaging claw is formed on the first support. The first support can be temporarily assembled to the housing. Thereby, assembly workability when the valve support is assembled to the housing can be improved.

  In addition to the above-described configuration, the vehicle washer pump device of the present invention has a pair of guide pins protruding to the other side of the first support and the second support on one of the first support and the second support. A pair of guide holes into which the pair of guide pins are inserted is formed on the other of the first support and the second support, and the protruding height of one of the pair of guide pins is a pair of It is set higher than the other protruding height of the guide pin.

  According to the vehicle washer pump device configured as described above, when assembling the first support and the second support to the housing, one guide pin is inserted into one guide hole, and the other guide pin is then inserted into the other guide. Can be inserted into the hole. Thereby, compared with the case where a pair of guide pin is simultaneously inserted in a pair of guide hole, position alignment of a pair of guide pin with respect to a pair of guide hole can be made easy. Therefore, the assembly workability when the valve support is assembled to the housing can be further improved.

It is a perspective view which shows the state which decomposed | disassembled the valve support from the housing in the vehicle washer pump apparatus which concerns on 1st Embodiment. It is a perspective view which shows the state by which the valve support shown by FIG. 1 was assembled | attached to the housing. FIG. 3 is a partially cutaway side view of the vehicle washer pump device shown in FIG. 2 as viewed from the other side in the second orthogonal direction, showing a state where the vehicle washer pump device is assembled to a washer tank. It is the longitudinal cross-sectional view seen from the 2nd orthogonal direction other side which shows the pump main body shown by FIG. FIG. 5 is a plan sectional view (a sectional view taken along line 5-5 in FIG. 2) of the housing and the valve support shown in FIG. It is a side view which expands and shows the valve support shown by FIG. (A) is a perspective view of the first support shown in FIG. 1 as viewed from the other side in the second orthogonal direction, and (B) is a view of the second support shown in FIG. 1 as viewed from one side in the second orthogonal direction. FIG. It is a perspective view which expands and shows the state which removed the 2nd support shown by FIG. 2 from the housing. It is the longitudinal cross-sectional view (9-9 sectional view taken on the line of FIG. 2) which looked at the valve support shown by FIG. 2 from the 1st orthogonal direction one side. It is the longitudinal cross-sectional view (10-10 line sectional drawing of FIG. 7 (A)) which looked at the 1st support shown by FIG. 7 (A) from the 1st orthogonal direction one side. It is a perspective view which shows the whole vehicle washer pump apparatus which concerns on 2nd Embodiment.

(First embodiment)
Hereinafter, a vehicle washer pump device 10 (hereinafter referred to as a washer pump 10) according to a first embodiment will be described with reference to FIGS. The washer pump 10 is configured as a centrifugal pump. As shown in FIG. 3, the washer pump 10 is arranged in the vertical direction (in the direction of arrows A and B in FIG. (Direction) is aligned with the vertical direction of the vehicle. As shown in FIGS. 1 and 2, the washer pump 10 includes a pump body 12, a valve device 50, and a valve support 70. Each configuration will be described below.

(About the pump body 12)
As shown in FIG. 4, the pump main body 12 includes a housing 14, a motor 40, and an impeller 44. The housing 14 is made of resin and is formed in a substantially cylindrical shape with the vertical direction as the axial direction. And in this Embodiment, the axial direction one side of the housing 14 is made into the lower side (arrow B direction of FIG. 4).

  The housing 14 includes a motor housing portion 16 constituting a motor chamber, an inlet 22, a pump chamber 24, a first outlet 30 (see FIG. 5) as an “outlet”, and a second outlet 32 (see “outlet”). (See FIG. 5). That is, the washer pump 10 is configured as a so-called double outlet pump.

  The motor housing portion 16 constitutes an upper portion of the housing 14 (a portion in the direction of arrow A in FIG. 4) and is formed in a substantially bottomed cylindrical shape opened upward. A bottom wall portion of the motor housing portion 16 is a partition wall 18, and an inlet 22 and a motor housing portion 16 described later are partitioned by the partition wall 18. A motor 40 is coaxially accommodated in the motor accommodating portion 16, and a rotating shaft 42 of the motor 40 penetrates the partition wall 18 and protrudes downward from the partition wall 18. A seal member is disposed in the shaft hole portion of the partition wall 18 through which the rotation shaft 42 penetrates to prevent the cleaning liquid from entering the motor housing portion 16.

  On the other hand, a connector cap 20 is fixed to the opening of the motor housing 16, and the opening of the motor housing 16 is closed by the connector cap 20. The connector cap 20 is integrally formed with a connector portion 20A. And the electric current is supplied to the motor 40 by connecting the external connector (illustration omitted) of the vehicle side harness to the connector part 20A.

  The inlet 22 is disposed below the motor housing portion 16. The inlet 22 is formed in a substantially cylindrical shape, and a direction orthogonal to the axis AL of the housing 14 (the direction of the arrow C and the arrow D in FIG. 4, hereinafter this direction is referred to as a first orthogonal direction). As the axial direction, it extends (protrudes) outward in the radial direction of the housing 14. The inner space of the inlet 22 is a suction hole 22 </ b> A, and the suction hole 22 </ b> A extends to the lower side of the motor accommodating portion 16. And the washer pump 10 is assembled | attached to the washer tank WT by the inlet 22 being assembled | attached to the assembly hole of the washer tank WT via the grommet 46 etc. (refer FIG. 3).

  As shown in FIG. 5, in the following description, the axial line of the inlet 22 is referred to as a reference line L, the arrow C direction side is defined as one side in the first orthogonal direction, and the arrow D is viewed in plan view as viewed from above. The direction side is the other side in the first orthogonal direction. In addition, a direction orthogonal to the first orthogonal direction in plan view is referred to as a second orthogonal direction, an arrow E direction is defined as one side in the second orthogonal direction, and an arrow F direction is defined as the other side in the second orthogonal direction.

  As shown in FIG. 4, the pump chamber 24 is disposed below the inlet 22 at the lower end portion (the end portion on one axial side) of the housing 14. Further, the pump chamber 24 is formed in a substantially circular shape with respect to the axis orthogonal cross section, and is opened downward. An end cap 26 is fixed to the opening at the lower end of the housing 14 by ultrasonic welding or the like, and the pump chamber 24 is closed in a watertight state by the end cap 26. A communication hole 28 is formed between the pump chamber 24 and the suction hole 22 </ b> A of the inlet 22. The communication hole 28 is arranged coaxially with the rotation shaft 42 of the motor 40 and communicates the inside of the pump chamber 24 and the inlet 22 (suction hole 22 </ b> A) at the center of the pump chamber 24. The rotating shaft 42 of the motor 40 described above extends to the pump chamber 24 through the inlet 22 and the communication hole 28, and the tip of the rotating shaft 42 is disposed in the pump chamber 24.

  Further, an impeller 44 is accommodated in the pump chamber 24, and the impeller 44 is pivotally supported by the tip end portion of the rotation shaft 42 of the motor 40 so as to be integrally rotatable. The impeller 44 has a plurality of blades, and the blades extend outward in the radial direction of the rotating shaft 42.

  As shown in FIG. 5, the first outlet 30 is formed in a substantially cylindrical shape, and extends (projects) from the outer peripheral surface 14 </ b> A of the pump chamber 24 at the lower end of the housing 14 to the radially outer side of the housing 14. ing. Specifically, the first outlet 30 is arranged to be offset to one side in the second orthogonal direction with respect to the reference line L in plan view, and extends from the housing 14 to one side in the first orthogonal direction. That is, the first outlet 30 is disposed on the opposite side to the inlet 22 (not shown in FIG. 5) with respect to the axis AL of the housing 14.

  The second outlet 32 is formed in a substantially cylindrical shape and protrudes from the housing 14 to one side in the first orthogonal direction. Specifically, in plan view, the second outlet 32 is disposed at a position symmetrical to the reference line L in the second orthogonal direction with respect to the first outlet 30, and the first outlet 30 is viewed from the first orthogonal direction. And the 2nd outlet 32 is arrange | positioned along with the 2nd orthogonal direction.

  Further, the insides of the first outlet 30 and the second outlet 32 are respectively communicated with the pump chamber 24. When the impeller 44 is rotated to one side in the rotational direction, the cleaning liquid in the washer tank WT is pumped to the first outlet 30 side. On the other hand, when the impeller 44 is rotated to the other side in the rotational direction, the cleaning liquid in the washer tank WT is pumped to the second outlet 32 side.

  Further, as shown in FIGS. 1 and 5, the outer peripheral surface 14 </ b> A at the lower end of the housing 14 has a pair of “covers” at a position on the other side in the first orthogonal direction from the first outlet 30 and the second outlet 32. A to-be-fitted protrusion 34 as a “fitting part” is integrally formed. The fitting protrusion 34 extends in the vertical direction and protrudes from the outer peripheral surface 14 </ b> A of the housing 14 to one side in the second orthogonal direction and the other side in the second orthogonal direction. Further, as shown in FIG. 5, the surface of the fitting projection 34 on the one side in the first orthogonal direction and the other side in the first orthogonal direction is formed along the second orthogonal direction. The surface on one side in the first orthogonal direction of the mating projection 34 is the first engaged surface 34A, and the surface on the other side in the first orthogonal direction of the mating projection 34 is the second engaged surface. 34B.

  As shown in FIGS. 1 and 2, a pair of protrusions 36 are formed on the outer peripheral surface 14 </ b> A of the housing 14 on the other side in the first orthogonal direction with respect to the fitting protrusion 34. The protruding portion 36 protrudes from the outer peripheral surface 14A to the one side in the second orthogonal direction and the other side in the second orthogonal direction, and is formed in a substantially rectangular shape in a side view as viewed from the second orthogonal direction.

(About the valve device 50)
As shown in FIG. 1, the valve device 50 is attached (fitted) to the first outlet 30 (not shown in FIG. 1) and the second outlet 32 and protrudes from the housing 14 to one side in the first orthogonal direction. ing. The valve device 50 is configured to be symmetrical with respect to the reference line L in the second orthogonal direction. This will be specifically described below.

  As shown in FIG. 5, the valve device 50 includes a valve housing 52 as a “main body portion” that constitutes a central portion in the second orthogonal direction of the valve device 50, and the valve housing 52 is formed in a hollow shape. Has been. The valve housing 52 has a first valve housing portion 54 that constitutes a central portion in the second orthogonal direction of the valve housing 52, and the first valve housing portion 54 has a substantially disc shape with the second orthogonal direction as an axial direction. Is formed. The valve housing 52 has a pair of second valve housing portions 56A and 56B. The second valve housing portions 56A and 56B are second from the axial center portion of the both axial side walls of the first valve housing portion 54. It bulges to one side in the orthogonal direction and the other side in the second orthogonal direction. The second valve housing portions 56A and 56B are formed integrally with the first valve housing portion 54.

  As shown in FIGS. 1 and 9, the second valve housing portions 56A and 56B are integrally formed with inflow portions 58A and 58B (only the inflow portion 58B is shown in FIG. 1), respectively. The inflow portions 58A and 58B are formed in a substantially cylindrical shape having the first orthogonal direction as an axial direction, and extend from the second valve housing portions 56A and 56B to the housing 14 side (the other side in the first orthogonal direction). The first outlet 30 and the second outlet 32 are arranged coaxially. And the 1st outlet 30 and the 2nd outlet 32 are each inserted in inflow part 58A, 58B from the 1st orthogonal direction other side. Thereby, the inside of the valve housing 52 and the pump chamber 24 are communicated with each other by the first outlet 30 and the second outlet 32.

  As shown in FIGS. 1 and 5, the valve device 50 includes a first discharge portion 60 having a substantially cylindrical shape. The first discharge part 60 is arranged coaxially with the first valve housing part 54 and extends from the bottom wall of the second valve housing part 56A to one side in the second orthogonal direction. Although not shown, the first discharge portion 60 extends from the bottom wall of the second valve housing portion 56A to the other side in the second orthogonal direction within the valve housing 52.

  Further, the valve device 50 includes a substantially cylindrical second discharge part 62. The second discharge part 62 is arranged coaxially with the first discharge part 60 and extends from the bottom wall of the second valve housing part 56B to the other side in the second orthogonal direction. Although not shown, the second discharge part 62 extends from the bottom wall of the second valve housing part 56B to the other side in the second orthogonal direction within the valve housing 52.

  Furthermore, the valve device 50 has a valve body (not shown). The valve body is made of an elastic material such as rubber and is formed in a substantially disc shape. Further, the valve body is provided in the first valve housing portion 54 of the valve device 50 and partitions the valve housing 52 in the second orthogonal direction. Thus, the space on the one side in the second orthogonal direction in the valve device 50 is the first valve chamber 64, and the space on the other side in the second orthogonal direction in the valve device 50 is the second valve chamber 66. In the valve housing 52, the valve element closes the end portion of the first discharge portion 60 or the end portion of the second discharge portion 62 due to a pressure difference generated between the first valve chamber 64 and the second valve chamber 66. It is like that.

  Further, a hose (not shown) is connected to the first discharge part 60, and the first discharge part 60 is connected to a front nozzle for cleaning the windshield glass of the vehicle via the hose. On the other hand, a hose (not shown) is connected to the second discharge part 62, and the second discharge part 62 is connected to a rear nozzle for cleaning the rear windshield glass of the vehicle via the hose. When the impeller 44 rotates, the cleaning liquid in the pump chamber 24 is alternatively discharged from the first discharge unit 60 or the second discharge unit 62 of the valve device 50 and supplied to the front nozzle or the rear nozzle. It is configured.

(About valve support 70)
As shown in FIGS. 1, 2, and 6, the valve support 70 holds the outer periphery of the housing 14 at the lower end of the housing 14 so as to guard and reinforce the valve housing 52 of the valve device 50. It is assembled in a state. That is, the valve support 70 protrudes from the housing 14 to one side in the first orthogonal direction. The valve support 70 includes a first support 70A and a second support 70B that are divided into two in the second orthogonal direction with respect to the reference line L in plan view. Hereinafter, the first support 70A and the second support 70B will be described.

  As shown in FIGS. 1 and 2, the first support 70 </ b> A constitutes a portion of the valve support 70 on one side in the second orthogonal direction. A portion of the first support 70A on the housing 14 side is a mounting portion 72, and a portion of the first support 70A on the side opposite to the housing 14 is a support portion 80.

  As shown in FIG. 8, the attachment portion 72 is disposed adjacent to one side in the first orthogonal direction with respect to the housing 14, and the surface of the attachment portion 72 adjacent to the housing 14 is a curved surface 74. Has been. The curved surface 74 is curved in an arc shape along the outer peripheral surface 14A of the housing 14 in plan view. Further, the tip end portion (first end portion on the other side in the first orthogonal direction) of the mounting portion 72 is disposed along the end surface on the one side in the first orthogonal direction of the protruding portion 36 of the housing 14.

  As shown in FIG. 7A, the fitting portion 72 is formed with a fitting hole 76 as a “fitting portion” penetrating in the second orthogonal direction, and the fitting hole 76 has a longitudinal direction in the longitudinal direction. It is formed in a substantially rectangular shape. Then, the fitting projection 34 of the housing 14 is fitted into the fitting hole 76, and the movement of the first support 70 </ b> A in the vertical direction and the first orthogonal direction is restricted by the fitting hole 76 and the fitting projection 34. Has been. Further, as shown in FIG. 5, in the fitting hole 76, a surface facing the first engaged surface 34 </ b> A of the fitted protrusion 34 in the first orthogonal direction is a first engaging surface 76 </ b> A. A surface of the fitting projection 34 that faces the second engaged surface 34B in the first orthogonal direction is a second engaging surface 76B.

  Further, as shown in FIG. 7 (A), a lower wall 78 is formed integrally with the mounting portion 72, and the lower wall 78 extends from the mounting portion 72 to the other side in the second orthogonal direction. 12 (end cap 26) is partially covered from below. In addition, the side surface 72A on the other side in the second orthogonal direction of the mounting portion 72 is formed along the first orthogonal direction and is disposed at a position that coincides with the reference line L in plan view (see FIG. 5).

  The support portion 80 is disposed adjacent to the first valve housing portion 54 of the valve device 50 on one side in the second orthogonal direction. In other words, the side surface 80A on the other side in the second orthogonal direction of the support portion 80 is formed along the first orthogonal direction, and is disposed on the one side in the second orthogonal direction with respect to the side surface 72A.

  An insertion hole 82 as a substantially rectangular “insertion part” is formed through the support part 80 in the second orthogonal direction, and the second valve housing part 56 </ b> A of the valve device 50 is inserted into the insertion hole 82. ing. Accordingly, the second valve housing portion 56A is held by the first support 70A in the vertical direction and the first orthogonal direction. In the state where the second valve housing portion 56A is held by the first support 70A, the support portion 80 protrudes above and below the first valve housing portion 54 of the valve device 50 (see FIG. 8). ).

  Further, the first support 70 </ b> A is formed with a valve accommodating portion 84 corresponding to the inflow portion 58 </ b> A of the valve device 50. The valve accommodating portion 84 extends in the first orthogonal direction and is formed in a concave shape having a substantially U-shaped cross section that is open to the other side in the second orthogonal direction. The valve accommodating portion 84 and the insertion hole 82 communicate with each other. ing. And the inflow part 58A of the valve apparatus 50 is accommodated in the accommodating part 84 for valves (refer FIG. 10).

  Further, the curved surface 74 of the mounting portion 72 is provided with a placement recess 86 for placing a presser piece 88 to be described later on the upper side of the valve housing portion 84. 2 Open to the other side in the orthogonal direction. In the arrangement recess 86, a presser piece 88 as a "presser part" is provided. The holding piece 88 is formed in a substantially rectangular plate shape, and extends from the side surface of the arrangement recess 86 to the other side in the second orthogonal direction with the first orthogonal direction as the plate thickness direction (see FIGS. 5 and 9). The presser piece 88 is disposed between the pair of mating protrusions 34 of the housing 14 when viewed from one side in the first orthogonal direction, and on the upper side with respect to the first discharge unit 60 and the second discharge unit 62. Has been placed. Further, the presser piece 88 is configured to be elastically deformable in the first orthogonal direction. In the state where the first support 70A is assembled to the housing 14, the tip end portion of the presser piece 88 abuts on the outer peripheral surface 14A of the housing 14 (see FIGS. 5 and 8), and the presser piece 88 is first orthogonally crossed. It is elastically deformed in one direction. 5 and 8, for the sake of convenience, the presser piece 88 is shown in a state where it is not elastically deformed.

  As shown in FIG. 10, the first support 70A is integrally formed with an engaging claw 90 in the upper part of the valve accommodating portion 84, and the engaging claw 90 is located above the inflow portion 58A. , Extending from the valve accommodating portion 84 to the other side in the second orthogonal direction. An engagement hook 90A is formed at the tip of the engagement claw 90, and the engagement hook 90A is bent downward from the engagement claw 90 in the second orthogonal direction with the outer peripheral portion of the inflow portion 58A. Is engaged.

  Further, as shown in FIG. 7A, a guide hole 92A is formed in the lower side surface 72A of the mounting portion 72, and a guide hole 92B is formed in the upper portion of the side surface 80A of the support portion 80. Has been. The guide holes 92A and 92B are formed in a circular shape in cross section and in a concave shape opened to the other side in the second orthogonal direction.

  In addition, a first recessed portion 94 for placing a first locking claw 104 of a second support 70B described later is formed on the inclined side surface of the upper portion of the support portion 80. And one side in the first orthogonal direction. A first locking hook 96 for locking a second support 70B described later is formed on the bottom surface of the first recess 94, and the first locking hook 96 is located above the bottom surface of the first recess 94. And it protrudes to the 1st orthogonal direction one side.

  Further, a second recess 98 for arranging a second locking claw 106 of the second support 70B described later is formed on the lower surface of the support portion 80, and the second recess 98 is opened downward. . A second locking hook 100 (see FIG. 10) for locking a second support 70B, which will be described later, is formed on the bottom surface of the second recess 98. The second locking hook 100 has a second recess. It protrudes downward from the bottom surface of 98.

  On the other hand, as shown in FIG. 1, the second support 70 </ b> B constitutes a portion of the valve support 70 on the other side in the second orthogonal direction. The second support 70B is configured symmetrically with the first support 70A in the second orthogonal direction except for the following points. In addition, the same name and code | symbol are attached | subjected about the site | part comprised symmetrically with the 1st support 70A and the 2nd orthogonal direction in the 2nd support 70B.

  That is, as shown in FIG. 7B, the guide holes 92A and 92B of the first support 70A are omitted from the second support 70B. The second support 70B is formed with a pair of guide pins 102A and 102B corresponding to the guide holes 92A and 92B of the first support 70A. The guide pins 102A and 102B are formed in a cylindrical shape having the second orthogonal direction as an axial direction. The guide pin 102A is inserted into the guide hole 92A, and the guide pin 102B is inserted into the guide hole 92B. ing. Further, the protrusion amount (protrusion height) of the guide pin 102A from the second support 70B is set larger (higher) than the protrusion amount of the guide pin 102B from the second support 70B.

  Further, the first locking hook 96 and the second locking hook 100 of the first support 70A are omitted from the support portion 80 of the second support 70B. A first locking claw 104 is formed on the support portion 80 of the second support 70 </ b> B corresponding to the first locking hook 96. The first locking claw 104 is formed in the first recess 94 of the second support 70B, and extends from the second support 70B to one side in the second orthogonal direction. Further, a first locking hole 104A is formed through the tip of the first locking claw 104, and the first locking hook 96 of the first support 70A is disposed in the first locking hole 104A. Yes.

  A second locking claw 106 is formed on the support portion 80 of the second support 70 </ b> B corresponding to the second locking hook 100. The second locking claw 106 is formed in the second recess 98 of the second support 70B and extends from the second support 70B to one side in the second orthogonal direction. Further, a second locking hole 106A is formed through the tip of the second locking claw 106, and the second locking hook 100 of the first support 70A is disposed in the second locking hole 106A. Yes. As a result, the first locking claw 104 and the second locking claw 106 are locked to the first locking hook 96 and the second locking hook 100 of the first support 70A, and the first support 70A and the second support 70A. 70B is restricted from moving away from each other in the second orthogonal direction (see FIG. 2).

  Further, in a state where the valve support 70 (the first support 70A and the second support 70B) is assembled to the housing 14, the valve support 70 and the valve device 50 are set so as not to contact each other. That is, the valve support 70 and the valve device 50 are assembled to the housing 14 in a state where a gap is formed between the valve support 70 and the valve device 50.

  Furthermore, when an external force from the lower side to the upper side is input to the support portion 80 of the valve support 70, the valve support 70 tends to tilt toward the housing 14, but in this case, the valve support 70 is fitted. The first engagement surface 76A of the joint hole 76 is engaged with the first engaged surface 34A of the mating protrusion 34 of the housing 14, and the tilt of the valve support 70 toward the housing 14 is restricted. ing. On the other hand, when an external force from the upper side to the lower side is input to the support portion 80 of the valve support 70, the valve support 70 tends to tilt to the opposite side to the housing 14 side. The second engaging surface 76B of the fitting hole 76 of the 70 is engaged with the second engaged surface 34B of the mating protrusion 34 of the housing 14, and the valve support 70 is tilted to the opposite side to the housing 14. It has come to be restricted.

  Next, the operation and effect of the first embodiment will be described.

  In the washer pump 10 configured as described above, the first outlet 30 and the second outlet 32 are formed at the lower end portion of the housing 14, and the washer pump 10 is configured as a so-called double outlet pump. The valve device 50 is assembled to the first outlet 30 and the second outlet 32 from one side in the first orthogonal direction, and protrudes from the housing 14 to one side in the first orthogonal direction.

  Here, a valve support 70 is assembled to the housing 14, and the valve support 70 guards and reinforces the valve housing 52 (specifically, the second valve housing portions 56A and 56B) of the valve device 50. Is assembled to the housing 14. For this reason, the valve device 50 can be protected by the valve support 70 against an external force. As a result, the protection performance for the valve device 50 can be improved.

  The above contents will be specifically described. The washer pump 10 as a whole is formed in a substantially cylindrical shape with the vertical direction as the axial direction. As shown in FIG. 3, the washer pump 10 is assembled to the lower end of the outer periphery of the washer tank WT, and the washer pump 10 (valve device 50) is one side in the first orthogonal direction with respect to the washer tank WT. Projected to the side.

  For this reason, if the valve support 70 is omitted in the washer pump 10, there are the following concerns. That is, for example, when the lower part of the valve device 50 hits another vehicle part when the washer tank WT is attached to the vehicle, an external force from the lower side to the upper side (see arrow f in FIG. 3) is input to the valve device 50. At this time, the valve device 50 may tilt upward, and the inflow portions 58 </ b> A and 58 </ b> B of the valve device 50 may be detached from the first outlet 30 and the second outlet 32. Further, for example, a foreign object such as a pebbles may enter the engine room from below while the vehicle is traveling, and the foreign object may hit the valve device 50 from below.

  On the other hand, in the washer pump 10 according to the first embodiment, the valve support 70 is assembled to the housing 14, and the valve support 70 guards and reinforces the valve housing 52 of the valve device 50. Is assembled to the housing 14. Thereby, even when another vehicle component hits the valve support 70 from below when the washer tank WT is assembled to the vehicle, the valve device 50 can be prevented from coming off. Further, even when a foreign object such as a pebbles enters the engine room from below while the vehicle is running, the valve support 70 guards the valve device 50 and prevents the valve device 50 from dropping from the housing 14. it can. Thus, the protection performance for the valve device 50 can be improved.

  A pair of mating protrusions 34 are formed on the outer peripheral surface 14 </ b> A of the housing 14. Further, the valve support 70 is formed with a pair of fitting holes 76, and the fitting projection 34 is fitted in the fitting hole 76. And the to-be-fitted protrusion 34 and the fitting hole 76 are comprised so that engagement to an up-down direction and a 1st orthogonal direction is possible. Thereby, in a state where the valve support 70 is assembled to the housing 14, the position of the valve support 70 with respect to the housing 14 can be determined by the fitting protrusion 34 and the fitting hole 76.

  Furthermore, when an external force from the lower side to the upper side is input to the support portion 80 of the valve support 70, the valve support 70 tends to tilt toward the housing 14 side. In this case, the first engaging surface 76 </ b> A in the fitting hole 76 of the valve support 70 is engaged with the first engaged surface 34 </ b> A of the fitted protrusion 34 of the housing 14. On the other hand, when an external force from the upper side to the lower side is input to the support portion 80 of the valve support 70, the valve support 70 tends to tilt to the side opposite to the housing 14 side. In this case, the second engagement surface 76 </ b> B in the fitting hole 76 of the valve support 70 engages with the second engaged surface 34 </ b> B of the fitted protrusion 34 of the housing 14. For this reason, the external force in the vertical direction inputted to the support portion 80 is transmitted from the first engagement surface 76A or the second engagement surface 76B of the fitting hole 76 to the fitting protrusion 34 (housing 14). Accordingly, the external force input to the valve support 70 can be received by the housing 14 having a relatively high strength while the position of the valve support 70 with respect to the housing 14 is determined by the fitting protrusion 34 and the fitting hole 76.

  Further, the valve support 70 includes a first support 70A and a second support 70B that are divided into two in the second orthogonal direction. Then, the second valve housing portion 56A of the valve device 50 is inserted into the insertion hole 82 of the first support 70A, and the second valve housing portion 56B of the valve device 50 is inserted into the insertion hole 82 of the second support 70B. ing. Therefore, the valve housing 52 of the valve device 50 is second orthogonally crossed by the first support 70A and the second support 70B in a state where the first discharge portion 60 and the second discharge portion 62 of the valve device 50 are exposed from the valve support 70. It can be configured to be sandwiched in the direction. Thereby, the valve device 50 can be guarded while maintaining the assembly posture of the valve device 50 to the housing 14, and the protection performance from external force can be further improved.

  Further, the second valve housing portion 56A of the valve device 50 is inserted into the insertion hole 82 of the first support 70A, and the second valve housing portion 56A is supported in the vertical direction and the first orthogonal direction in the support portion 80 of the first support 70A. Covered by. Further, the second valve housing portion 56B of the valve device 50 is inserted into the insertion hole 82 of the second support 70B, and the second valve housing portion 56B is supported in the vertical direction and the first orthogonal direction in the support portion 80 of the second support 70B. Covered by. Therefore, the valve housing 52 (second valve housing portions 56A and 56B) of the valve device 50 can be protected by the valve support 70 in the vertical direction and the first orthogonal direction.

  Further, a pressing piece 88 is formed on each of the first support 70A and the second support 70B, and the pressing piece 88 is brought into contact with the outer peripheral surface 14A of the housing 14 in a state of being elastically deformed to one side in the first orthogonal direction. ing. For this reason, when the valve support 70 (the first support 70A and the second support 70B) is attached to the housing 14, the backlash of the valve support 70 in the first orthogonal direction can be suppressed. Thereby, the attachment state to the housing 14 of the valve support 70 can be made favorable.

  A presser piece 88 is disposed between the pair of mating protrusions 34 of the housing 14. For this reason, the biasing force with respect to the valve support 70 (the first support 70A and the second support 70B) due to the elastic deformation of the presser piece 88 acts on the pair of fitting holes 76 in a well-balanced manner. Thereby, the engagement state of the to-be-fitted protrusion 34 and the fitting hole 76 can be made favorable.

  Furthermore, an engagement claw 90 is formed on the first support 70A and the second support 70B, and the engagement claw 90 is engaged with the inflow portions 58A and 58B of the valve device 50 in the second orthogonal direction. Therefore, in assembling the first support 70A and the second support 70B to the housing 14, for example, when the first support 70A is first assembled to the housing 14 and then the second support 70B is assembled to the housing, The first support 70A can be temporarily assembled to the housing 14 until the second support 70B is assembled. Thereby, the assembling workability when assembling the valve support 70 to the housing 14 can be improved.

  The guide pin 102A is inserted into the guide hole 92A, and the guide pin 102B is inserted into the guide hole 92B. Furthermore, the protrusion amount (protrusion height) of the guide pin 102A from the second support 70B is set larger than the protrusion amount (protrusion height) of the guide pin 102B from the second support 70B. Therefore, when the first support 70A and the second support 70B are assembled to the housing 14, the guide pin 102B can be inserted into the guide hole 92B after the guide pin 102A is inserted into the guide hole 92A. This makes it easier to align the guide pins 102A and 102B with respect to the guide holes 92A and 92B than when the guide pins 102A and 102B are simultaneously inserted into the guide holes 92A and 92B. Therefore, the assembly workability when the valve support 70 is assembled to the housing 14 can be further improved.

(Second Embodiment)
Hereinafter, the washer pump 200 according to the second embodiment will be described with reference to FIG. The washer pump 200 is configured in the same manner as the washer pump 10 of the first embodiment except for the valve support 202. Hereinafter, the valve support 202 of the second embodiment will be described.

  The valve support 202 is configured as a single member. The support portion 204 of the valve support 202 is formed in a substantially rectangular concave shape opened upward, and reinforces the valve housing 52 of the valve device 50 while guarding from the lower side. Further, a bulging portion 206 bulging downward is formed on the bottom wall of the support portion 204 at the intermediate portion in the second orthogonal direction, and the first valve housing of the valve device 50 is formed in the bulging portion 206. The part 54 is arranged.

  Moreover, the attachment part 210 in the valve support 202 is formed in a substantially triangular frame shape in a side view. Specifically, the distal end portion of the attachment portion 210 extends in the vertical direction between the fitted protrusion 34 and the protrusion portion 36 of the housing 14. Further, the upper end portion of the attachment portion 210 is bent from the tip end portion of the attachment portion 210 to the reference line L side, is disposed on the upper side of the fitting projection 34, and is curved along the outer peripheral surface 14 </ b> A of the housing 14. ing. Further, the lower end portion of the attachment portion 210 is bent from the distal end portion of the attachment portion 210 toward the reference line L, is curved along the outer peripheral surface 14A of the housing 14, and is coupled to the bulging portion 206 of the support portion 204. Has been.

  Further, the upper end portion of the attachment portion 210 is connected to the support portion 204 by a connection portion 212 that constitutes the attachment portion 210. The connecting portion 212 is inclined upward from the side wall 204 </ b> A of the support portion 204 toward the housing 14 in a side view, and the upper portion of the connecting portion 212 is coupled to the upper end portion of the mounting portion 210. A fitting hole 214 as a “fitting portion” is formed between the connecting portion 212 and the attachment portion 210, and the fitting projection 34 is fitted into the fitting hole 214.

  Thus, also in the second embodiment, the valve housing 52 of the valve device 50 is reinforced while guarding at least the lower side by the valve support 202 assembled to the housing 14. For this reason, the valve device 50 can be protected by the valve support 202 against an external force from the lower side to the upper side. As a result, the protection performance for the valve device 50 can be improved.

  Also in the second embodiment, when an external force (particularly, an external force from the lower side to the upper side) is input to the support portion 204 of the valve support 202, the valve support 202 tilts toward the housing 14 side. The external force is transmitted from the fitting hole 214 of the valve support 202 to the fitting projection 34 of the housing 14. Therefore, also in the second embodiment, the external force input to the valve support 70 can be received by the housing 14 having a relatively high strength.

  In the first embodiment and the second embodiment, the fitting projection 34 is formed in the housing 14, and the fitting hole 76 into which the fitting projection 34 is fitted is formed in the valve support 70. ing. Instead of this, a fitting protrusion may be formed on the valve support 70, and a fitting recess to which the fitting protrusion fits may be formed in the housing 14.

  Further, in the first embodiment and the second embodiment, the fitting hole 76 of the valve support 70 is formed to penetrate in the second orthogonal direction, but the fitting hole 76 is formed in a concave shape to be fitted. You may comprise so that the to-be-fitted protrusion 34 may fit in the hole 76. FIG.

  In the first embodiment, the presser piece 88 is formed on the first support 70A and the second support 70B, but the presser piece 88 is formed on one of the first support 70A and the second support 70B. You may comprise as follows.

  In the first embodiment, the engaging claw 90 is formed on the first support 70A and the second support 70B, but the engaging claw 90 is provided on either the first support 70A or the second support 70B. You may comprise so that it may form.

  In the first embodiment, in the second support 70B, the protruding amount of the guide pin 102A is set to be larger than the protruding amount of the guide pin 102B. However, the protruding amount of the guide pin 102B is set to the guide pin 102A. You may set large compared with the protrusion amount of.

  Further, in the first embodiment, the first support 70 </ b> A and the second support 70 </ b> B may be configured to protrude to one side in the first orthogonal direction from the first valve housing portion 54 of the valve device 50.

DESCRIPTION OF SYMBOLS 10 ... Washer pump (vehicle washer pump apparatus), 14 ... Housing, 14A ... Outer peripheral surface (outer peripheral part of housing), 24 ... Pump chamber, 30 ... First outlet (outlet) , 32 ... second outlet (outlet), 34 ... fitting protrusion (fitting part), 40 ... motor, 42 ... rotating shaft, 44 ... impeller, 50 ... Valve device 52 ... Valve housing (main body), 58A, 58B ... Inflow part, 60 ... First discharge part, 62 ... Second discharge part, 70 ... Valve support, 70A ..First support, 70B ... second support, 76 ... fitting hole (fitting part), 82 ... insertion hole (insertion part), 88 ... pressing piece (pressing part), 90 ... engaging claws, 92A, 92B ... guide holes, 10 A, 102B ... guide pin, 200 ... washer pump, 202 ... valve support, 214 ... fitting hole (fitting portion)

Claims (7)

A housing having a motor chamber that is formed in a cylindrical shape and that houses a motor therein, and a pump chamber that houses an impeller that is pivotally supported so as to rotate integrally with the rotation shaft of the motor;
A pair of outlets the are protruded from the outer periphery of the pump chamber in the housing and communicates with said pump chamber,
A pair of inflow portions assembled to the pair of outlets; a main body portion disposed on one side in a first orthogonal direction perpendicular to the axis of the housing with respect to the housing; and a first extending from the main body portion. A discharge portion and a second discharge portion, and when the impeller rotates, the liquid in the pump chamber flows in from the pair of inflow portions and is discharged from the first discharge portion or the second discharge portion. A valve device;
Wherein a support portion for holding the body of the valve device is disposed on the housing side with respect to the support portion, the outer periphery of the front Symbol housing in a state in which said pair of inlet and a pair of outlets assembled a mounting portion that is assembled to part, a valve support having,
A washer pump device for a vehicle comprising: A pair of mated parts spaced apart in the circumferential direction of the housing are formed on the outer peripheral part of the housing, and a pair of mated parts fitted to the mated parts are formed on the mounting part of the valve support. A mating part is formed,
The vehicle washer pump device according to claim 1, wherein the fitted portion and the fitting portion are configured to be engageable in an axial direction of the housing and the first orthogonal direction. The first discharge part and the second discharge part are extended from the main body part in a direction away from each other along a second orthogonal direction orthogonal to the first orthogonal direction when viewed from the axial direction of the housing. ,
The valve support is configured to include a first support and a second support in which the support portion is divided into two in the second orthogonal direction,
The vehicle washer pump device according to claim 2, wherein the first support and the second support are each formed with an insertion portion through which the first discharge portion or the second discharge portion is inserted. At least one of the first support and the second support is formed with a pressing portion configured to be elastically deformable in the first orthogonal direction.
The vehicle washer pump device according to claim 3, wherein in the assembled state of the valve support to the housing, the presser portion is brought into contact with an outer peripheral portion of the housing in a state of being elastically deformed.   The vehicle washer pump device according to claim 4, wherein the presser portion is disposed between the pair of fitted portions.   The engagement claw that engages with the valve device in the second orthogonal direction is formed on at least one of the first support and the second support. The vehicle washer pump device as described. One of the first support and the second support is formed with a pair of guide pins protruding to the other side of the first support and the second support,
A pair of guide holes into which the pair of guide pins are inserted are formed on the other of the first support and the second support,
The vehicle washer pump device according to any one of claims 3 to 6, wherein one protrusion height of the pair of guide pins is set higher than the other protrusion height of the pair of guide pins.

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