JP4528612B2 - Thermistor thermometer mounting structure - Google Patents

Description

The present invention relates to a thermistor thermometer mounting structure for mounting a thermistor thermometer to a box such as a power supply device mounted on an electric vehicle or a hybrid car.

  In recent years, high-voltage, high-output power sources have been used in hybrid cars and electric vehicles that can be driven by both the internal combustion engine and the electric motor, which have been used as environmentally friendly automobiles. is needed. In order to secure a high voltage and high output power source, a power source device (see, for example, Patent Document 1) configured by connecting a plurality of relatively small batteries in series has been proposed.

  The power supply device described above includes a plurality (a large number) of batteries connected in series with each other, a box housing these batteries, temperature detection means as an electronic device, cooling means, and the like. The box includes a box-like box body and a plate-like lid.

  The box body is made of an insulating synthetic resin. The box body is provided with an opening through which the battery is taken in and out of the box body. In the box body, a plurality of partition walls arranged at equal intervals are provided. The box body houses one battery at a time between adjacent partition walls. The lid is made of an insulating synthetic resin. When the lid is attached to the box body, the lid closes the opening described above.

  The temperature detecting means is attached to the lid of the box. The temperature detection means is, for example, a thermistor thermometer. The temperature detecting means is fixed to the lid body, the lid body is attached to the box body, and detects the temperature of the battery by contacting the battery housed in the box body. The cooling means cools the battery accommodated in the box body or stops the cooling based on the temperature of the battery detected by the temperature detecting means.

The power supply apparatus described above controls the cooling means and the like based on the temperature of the battery detected by the temperature detecting means to keep the battery at an appropriate temperature.
JP 2003-229110 A

  The power supply device described above fixes temperature detection means as an electronic device to the lid of the box. For this reason, the distance between the lid and the battery and the thickness of the temperature detecting means are often different from each other due to dimensional tolerances of the lid and the box. In this case, when the lid is attached to the box body, the temperature detecting means is sandwiched between the lid and the battery and damaged, or the temperature of the battery cannot be detected without contacting the battery. .

  For this reason, in the conventional power supply device, when the lid is attached to the box body, the attachment position of the temperature detecting means has been appropriately adjusted. Therefore, in the conventional mounting structure of the electronic device such as the power supply device, that is, the temperature detecting means, the time required for mounting the temperature detecting means as the electronic device increases, and the man-hour required for mounting the temperature detecting means as the electronic device increases. There was a tendency to increase.

Accordingly, an object of the present invention is to provide a mounting structure of a thermistor thermometer that can reduce the labor required for the mounting of the thermistor thermometer.

In order to achieve the object by solving the problems described above, the mounting structure of the thermistor thermometer of the present invention as set forth in claim 1, through an opening provided in the box body, a thermistor thermometer invaded the box body In the mounting structure of the thermistor thermometer attached to the box, the thermistor thermometer is allowed to enter the box through the opening, and the thermistor thermometer is movable along the direction of entering the box. a support portion for supporting the, the thermistor thermometer that has entered the box body through the opening, and biased toward the inside of the box body, and a biasing portion that Ru is brought into contact with the box body of the battery, the It is characterized by having prepared.

The mounting structure of the thermistor thermometer according to claim 2 of the present invention is the mounting structure of the thermistor thermometer according to claim 1, wherein the box body has a plurality of standing structures standing from the inner edge of the opening. A wall is provided, and the support portion includes a protrusion protruding from one of the thermistor thermometer and the standing wall toward the other, and a groove provided on the other and into which the protrusion enters. And the projection protrudes into the groove to support the thermistor thermometer in a movable manner.

Mounting structure of the thermistor thermometer of the present invention described in claim 3 is the mounting structure of the thermistor thermometer according to claim 2, wherein the supporting part is to interfere with the projection, the thermistor thermometer the box It is characterized by having a drop-out restricting part that restricts the drop-out inside the body.

The mounting structure of the thermistor thermometer according to claim 4 of the present invention is the mounting structure of the thermistor thermometer according to claim 1, wherein the box body is provided with a plurality of standing structures standing from the inner edge of the opening. A wall is provided, and the biasing portion includes a spring piece extending from one to the other of the thermistor thermometer and the standing wall and elastically deformable.

According to the mounting structure of the thermistor thermometer according to the first aspect of the present invention, the support portion allows the thermistor thermometer to enter the box body through the opening, and the thermistor thermometer is movable in the opening. To do. As a result, when the thermistor thermometer attached to the box comes into contact with the stored item contained in the box, the thermistor thermometer moves relative to the box. In addition, since the urging unit urges the thermistor thermometer to the inside of the box body, the thermistor thermometer attached to the box and the accommodated object accommodated in the box reliably come into contact with each other. Thus, simply by inserting a thermistor thermometer in the opening, easily by, for example, to ensure contact with the contained goods a thermistor thermometer, it can be attached to the thermistor thermometer box.

According to the mounting structure of the thermistor thermometer according to the second aspect of the present invention, since the support portion includes the protrusion and the groove, the thermistor thermometer can be reliably moved.

According to the attachment structure of the thermistor thermometer according to the third aspect of the present invention, since the support portion includes the drop-off restricting portion, it is possible to prevent the thermistor thermometer from dropping into the box body.

According to the mounting structure of the thermistor thermometer of the present invention described in claim 4, the biasing portion includes the elastically deformable spring piece, so that the thermistor thermometer can be biased reliably.

The present invention according to claim 1, simply by inserting a thermistor thermometer in the opening, easily by, for example, to ensure contact with the contained goods a thermistor thermometer, it is attached to the thermistor thermometer box it can. Therefore, it reduces the labor required for attachment to the box body of the thermistor thermometer can be reduced the required number of steps according to the attachment to the box body of the thermistor thermometer.

In the second aspect of the present invention, the thermistor thermometer can be reliably moved because the support portion includes the protrusion and the groove.

According to the third aspect of the present invention, since the support portion includes the drop-off restricting portion, it is possible to prevent the thermistor thermometer from dropping into the box body.

According to the fourth aspect of the present invention, since the urging portion includes the elastically deformable spring piece, the thermistor thermometer can be urged reliably.

A thermistor thermometer mounting structure (hereinafter simply referred to as a mounting structure) 1 according to an embodiment of the present invention will be described with reference to FIGS. 2 and the like, the thermistor thermometer 31 shown in FIG. 2 is attached to the lid 3 of the box 1 and constitutes the power supply device 32 shown in FIG.

As shown in FIG. 1, the power supply device 32 includes a plurality of (many) batteries 33 connected in series with each other, a box 1 that houses these batteries 33, and a thermistor thermometer 31 (shown in FIG. 2). , A cooling means (not shown), a control device (not shown), the mounting structure 30 described above, and the like.

  The battery 33 is formed in a flat box shape, and a positive (plus) electrode 34 and a negative (minus) electrode 35 are provided on the outer surface. In the state in which the plurality of batteries 33 are accommodated in the box 1 described above, the positive electrode 34 and the negative electrode 35 adjacent to each other are electrically connected by a conductive connection plate 36. The plurality of batteries 33 are connected to each other in series by a connection plate 36. Note that the battery 33 is a container.

  As shown in FIG. 1, the box 1 includes a box-shaped box body 2, a plate-shaped lid 3, and an attachment mechanism 4.

  The box body 2 is made of an insulating synthetic resin and is obtained by molding by a known injection molding method or the like. The box body 2 includes a plurality of peripheral walls 5 and flange walls 6 that are continuous with each other, and is formed in a box shape. The box body 2 is provided with an opening 7 through which a stored item such as a battery 33 is taken in and out of the box body 2. Of course, the opening 7 communicates the inside and outside of the box body 2.

  The flange wall 6 is connected to the edge near the opening 7 of the peripheral wall 5. The flange wall 6 surrounds the opening 7 described above, and becomes parallel to the main body 9 of the lid 3 when the lid 3 is attached to the box body 2 as described later. The main body 9 of the lid 3 described above overlaps the flange wall 6.

  In addition, a plurality of partition walls 8 are provided in the box body 2 at regular intervals. The box body 2 accommodates the storage items such as the battery 33 described above one by one between the partition walls 8 adjacent to each other.

  The lid 3 is made of an insulating synthetic resin and is obtained by molding by a known injection molding method or the like. As shown in FIG. 1, the lid 3 is formed in a flat plate shape. The lid 3 is attached to the box body 2 by the attachment mechanism 4. When the lid 3 is attached to the box body 2, the body 9 overlaps the flange wall 6 described above and closes the opening 7 described above.

  The lid 3 is provided with an opening 37 as shown in FIG. As shown in FIG. 2, the opening 37 is provided at a corner of the lid 3, and of course, penetrates the lid 3. The planar shape of the opening 37 is rectangular. Further, as shown in FIGS. 4 and 5, the lid 3, ie, the box 1, faces outward from the inner edge of the opening 37 along the direction orthogonal to the surface of the lid 3, ie, the box 1. A plurality of standing walls 38 are provided. In the illustrated example, four standing walls 38 are provided.

  Further, as shown in FIGS. 2 and 4, the opening 37 is provided with three convex walls 39a, 39b, and 39c. The convex walls 39 a, 39 b, and 39 c protrude toward the inside of the opening 37 from the edge of the standing wall 38 that is located outside the lid 3, that is, the box 1. One convex wall 39 a protrudes from one end in the longitudinal direction of the opening 37 toward the inside of the opening 37.

  The other two convex walls 39 b and 39 c protrude from the other end in the longitudinal direction of the opening 37 toward the inside of the opening 37. Further, the other two convex walls 39 b and 39 c are arranged at intervals along the width direction of the opening 37. These three convex walls 39a, 39b, and 39c allow a thermistor body 40 (described later) of the thermistor thermometer 31 to pass between them.

  The attachment mechanism 4 moves the lid 3 relative to the box body 2 along the arrow S (shown in FIG. 1, the direction from the top to the bottom in FIG. 1) along the surface of the lid 3 described above. Then, the lid 3 is attached to the box body 2. The arrow S indicates the sliding direction of the lid 3 with respect to the box body 2. The attachment mechanism 4 includes a first fixing portion 11 and a second fixing portion 12.

  As shown in FIG. 1, the first fixing portion 11 includes a plurality of through grooves 13 and a plurality of pressing portions 14. The through groove 13 is provided in the one end 3 a of the lid 3 located on the front side of the arrow S described above. The plurality of through-grooves 13 are provided at one end portion 3 a of the lid body 3 at equal intervals along a direction orthogonal to (intersect) the arrow S. The through groove 13 overlaps the partition wall 8 when the lid 3 is attached to the box body 2. The through groove 13 extends linearly along the arrow S.

  The holding part 14 is provided in the one end part 2a located in the front side of the arrow S mentioned above of the box main body 2. FIG. Note that the one end 3 a of the lid 3 and the one end 2 a of the box body 2 overlap each other when the lid 3 is attached to the box body 2. The plurality of pressing portions 14 are provided at one end portion 2 a of the box body 2 at equal intervals along a direction orthogonal (crossing) to the arrow S. The pressing portion 14 overlaps the partition wall 8.

  The pressing portion 14 is connected to the protruding standing piece 16 projecting from the flange wall 6 located at the one end portion 2a of the box body 2 and the end portion of the standing piece 16 on the side away from the flange wall 6 and is connected to the box body 2. And a plate piece 17 parallel to the surface of the lid 3 attached to the.

  The first fixing portion 11 described above inserts the standing piece 16 into the through groove 13 through the opening located at one end described above, and the flange wall 6 and the plate piece 17 of the one end portion 2 a of the box body 2. The one end 3a of the lid 3 is positioned between the one end 3a and the one end 2a of the box body 2 to be fixed. Thus, the first fixing portion 11 attaches the lid 3 to the box body 2.

  As shown in FIG. 1, the second fixing portion 12 includes a plurality of pairs of holes 18a and 18b and a plurality of pairs of protrusions 19a and 19b. In other words, the second fixing portion 12 includes at least a pair of holes 18a and 18b and a pair of protrusions 19a and 19b. The plurality of pairs of holes 18a and 18b are provided at equal intervals along the direction orthogonal to (intersect) the arrow S at the other end 3b of the lid 3 located on the rear side of the arrow S described above. Yes. The holes 18 a and 18 b overlap the partition wall 8 when the lid 3 is attached to the box body 2. The holes 18 a and 18 b penetrate the other end 3 b of the lid 3, respectively. Further, the pair of holes 18 a and 18 b are arranged along the arrow S.

  The plurality of pairs of protrusions 19a and 19b are provided at equal intervals along the direction perpendicular to (intersect) the arrow S on the other end 2b of the box body 2 located on the rear side of the arrow S described above. Yes. Note that the other end 3 b of the lid 3 and the other end 2 b of the box body 2 overlap each other when the lid 3 is attached to the box body 2. The protrusions 19 a and 19 b overlap the partition wall 8 when the lid 3 is attached to the box body 2.

  The protrusions 19 a and 19 b protrude from the other end 2 b of the box body 2 toward the outside of the box body 2. The pair of protrusions 19 a and 19 b protrude from the other end 2 b of the box body 2 in a direction intersecting with each other.

  In the second fixing portion 12 described above, the one protrusion 19a enters the one hole 18a, the other protrusion 19b enters the other hole 18b, and the other end 3b of the lid 3 and the box body The other end 2b of 2 is fixed. In this way, the second fixing portion 12 attaches the lid 3 to the box body 2 in such a manner that the standing plate portion 10 of the lid 3 is overlapped on the outside of the peripheral wall 5.

  The attachment mechanism 4 having the above-described configuration attaches the lid 3 to the box body 2 as follows. First, the box body so that the through groove 13 and the holding portion 14 are spaced apart from each other, and the other end 2b of the box body 2 and the other end 3b of the lid 3 are spaced apart from each other to close the opening 7. 2 is covered with the lid 3. At this time, the through groove 13 and the pressing portion 14 are arranged along the longitudinal direction of the through groove 13.

  Then, along the longitudinal direction of the through groove 13, the through groove 13 and the pressing portion 14 are brought close to each other, and the other end 2 b of the box body 2 and the other end 3 b of the lid 3 are brought close to each other. That is, the lid 3 is slid with respect to the box body 2 along the arrow S along the surface of the lid 3. Then, the protrusion 19a is elastically deformed once and the standing piece 16 enters the through groove 13, the one end 3a of the lid 3 is sandwiched between the box body 2 and the plate piece 17, and the hole 18a , 18b enters the protrusions 19a, 19b, and the lid 3 is attached to the box body 2.

  As shown in FIG. 6, the thermistor thermometer 31 includes a thermistor body 40, a thermistor (not shown), a pair of cables 41, and the like. The thermistor body 40 is made of a synthetic resin and is formed in a rectangular shape having a size that can be inserted into and removed from the box 1 through the opening 37 described above. The thermistor is housed in the thermistor body 40 described above. The cable 41 connects the thermistor and the control device. The thermistor thermometer 31 detects information corresponding to the temperature of the battery 33 in a state where the thermistor body 40 is inserted into the opening 37 and is in contact with the outer surface of the battery 33, and the detected information is controlled by the control device. Output to.

  The cooling means can cool the battery 33 accommodated in the box body. Based on the temperature of the battery 33 detected by the thermistor thermometer 31, the control device controls the cooling means to cool the battery 33 housed in the box body 2, that is, the box body 1, or to perform the cooling. Stop. The control device controls the cooling means and the like based on the temperature of the battery 33 detected by the thermistor thermometer 31 to keep the battery 33 at an appropriate temperature.

  The attachment structure 30 attaches the thermistor thermometer 31 inserted into the box 1 through the opening 37 described above to the lid 3 of the box 1. The thermistor thermometer 31 is inserted into the opening 37 along an arrow J (shown in FIG. 2) orthogonal to the outer surface of the lid 3. As shown in FIGS. 2 to 5, the mounting structure 30 includes a support portion 42 and an urging portion 43.

  As shown in FIG. 2, the support portion 42 includes a pair of support protrusions 44, a protrusion 45, a pair of protrusions 46, and a pair of grooves 47. As shown in FIG. 3, the support protrusions 44 protrude from the pair of standing walls 38 in the above-described standing wall 38 along the width direction of the opening 37 so as to approach each other. The surface of the support protrusion 44 is parallel to the surface of the standing wall 38 and contacts the surface of the thermistor body 40 of the thermistor thermometer 31 that has entered the opening 37 as shown in FIG. Further, the support protrusion 44 is provided at the center of the opening 37 in the longitudinal direction.

  As shown in FIGS. 2, 4, 5, 6, and 7, the protrusion 45 is formed integrally with the thermistor body 40 and is formed so as to protrude from the thermistor body 40. The pair of protrusions 46 are formed integrally with the thermistor body 40 of the protrusion 45, that is, the thermistor thermometer 31. 2, 3, 5, and 6, the pair of protrusions 46 are formed on the outside of the thermistor body 40 from the protrusion 45 along the width direction of the thermistor body 40, that is, along the width direction of the opening 37. It protrudes. That is, when the thermistor body 40 of the thermistor thermometer 31 is accommodated in the opening 37, the protrusion 46 is formed to protrude from the thermistor body 40 of the thermistor thermometer 31 toward the standing wall 38. The protrusion 46 is formed in a columnar shape in the illustrated example.

  As shown in FIGS. 2 and 3, the groove 47 is formed in a concave shape from the surface of the support protrusion 44 described above. That is, the groove 47 is provided in the standing wall 38. The groove 47 extends linearly from the edge of the standing wall 38 on the outer side of the box 1 toward the inner side of the box body 2 to which the lid 3 is attached, that is, the inner side of the box 1. That is, the groove 47 extends linearly along the arrow J described above. When the thermistor body 40 of the thermistor thermometer 31 is accommodated in the opening 37, the protrusion 46 enters the groove 47. In the groove 47, the protrusion 46 is movable along the longitudinal direction of the groove 47.

  Further, as shown in FIG. 7, the groove 47 is not provided in the portion 48 closer to the inside of the box 1 of the support protrusion 44. For this reason, the portion 48 described above restricts the thermistor body 40 of the thermistor thermometer 31 from moving further to the inside of the box 1 when it contacts the protrusion 46. In other words, the portion 48 described above restricts the thermistor body 40 of the thermistor thermometer 31 from dropping out to the inside of the box 1 when it contacts the protrusion 46. The aforementioned portion 48 forms a drop-off restricting portion.

  The support portion 42 described above allows the thermistor body 40 of the thermistor thermometer 31 to enter the box body 1 through the opening 37 by the protrusion 46 entering the groove 47. The support portion 42 supports the thermistor body 40 of the thermistor thermometer 31 integrated with the protrusion 46 movably along the longitudinal direction of the groove 47 by the protrusion 46 entering the groove 47. . Further, the support portion 42 restricts the thermistor body 40 of the thermistor thermometer 31 from dropping out to the inside of the box body 1 by the contact (interference) of the portion 48 described above.

  As shown in FIGS. 2, 3, 4, 6, and 7, the urging portion 43 includes a pair of spring pieces 49. Each of the pair of spring pieces 49 is formed in a belt shape and is elastically deformable. The pair of spring pieces 49 are formed integrally with the protrusion 45, that is, the thermistor body 40. Each of the pair of spring pieces 49 extends from the protrusion 45 toward the outside of the thermistor body 40 along the longitudinal direction of the thermistor body 40, that is, along the longitudinal direction of the opening 37. That is, when the thermistor body 40 of the thermistor thermometer 31 is accommodated in the opening 37, the pair of spring pieces 49 are provided with the above-described convex walls 39a, 39b, and 39c from the thermistor body 40 of the thermistor thermometer 31. It extends toward the installation wall 38.

  Further, when the thermistor body 40 of the thermistor thermometer 31 is inserted into the opening 37, the pair of spring pieces 49 contact the convex walls 39a, 39b, 39c described above, as shown in FIG. When the thermistor body 40 of the thermistor thermometer 31 is inserted into the opening 37, the pair of spring pieces 49 are elastically deformed in such a direction that the edges that are farthest from each other approach each other, as shown in FIG.

  When the pair of spring pieces 49 are positioned on the inner side of the box body 1 from the convex walls 39a, 39b, and 39c, the edges that are farthest apart from each other are separated from each other by elastic restoring force. The pair of spring pieces 49 are positioned at the innermost side of the box 1 with respect to the convex walls 39a, 39b, and 39c and the edges of the thermistor thermometer 31 that interfere with the convex walls 39a, 39b, and 39c. The thermistor body 40 is prevented from slipping out of the opening 37.

  Further, when the thermistor body 40 of the thermistor thermometer 31 is accommodated in the opening 37 and the lid 3 is attached to the box body 2, the pair of spring pieces 49 are protruded from the thermistor body 40 that contacts the battery 33. It is pressed against the walls 39a, 39b, 39c. Then, the pair of spring pieces 49 interfere (contact) with the convex walls 39a, 39b, and 39c, elastically deform, and bias the thermistor body 40 of the thermistor thermometer 31 toward the battery 33.

  In other words, the pair of spring pieces 49 generates an elastic restoring force in a direction in which the thermistor body 40 of the thermistor thermometer 31 is separated from the convex walls 39 a, 39 b, 39 c provided on the standing wall 38, and the box 37 passes through the opening 37. The thermistor body 40 of the thermistor thermometer 31 inserted into the body 1 is urged toward the inside of the box 1.

  The power supply device 32 having the above-described configuration is assembled by attaching the lid body 3 to which the thermistor thermometer 31 is attached to the box body 2 containing a plurality of batteries 33 connected in series. And the power supply device 32 is mounted in the hybrid car and electric vehicle which can drive | work with both an internal combustion engine and an electric motor.

  According to the present embodiment, the support portion 42 allows the thermistor thermometer 31 to enter the box 1 through the opening 37 and allows the thermistor thermometer 31 to move within the opening 37. Accordingly, when the thermistor thermometer 31 attached to the box 1 comes into contact with the battery 33 housed in the box 1, the thermistor thermometer 31 moves relative to the box 1.

  Further, since the urging unit 43 urges the thermistor thermometer 31 to the inside of the box body 1, the thermistor thermometer 31 attached to the box body 1 and the battery 33 accommodated in the box body 1 are surely connected. Contact. Therefore, by simply inserting the thermistor thermometer 31 into the opening 37, the thermistor thermometer 31 can be easily brought into contact with the battery 33 without fine adjustment of the attachment position of the thermistor thermometer 31 to the box 1. And can be attached to the box 1. Accordingly, it is possible to reduce the time and effort required for attaching the thermistor thermometer 31 to the box 1 and reduce the number of man-hours required for attaching the thermistor thermometer 31 to the box 1.

  For example, as shown in FIG. 10, even when the battery 33 is positioned closer to the lid 3 than the normal position (indicated by a two-dot chain line in FIG. 10), the support portion 42 can move the thermistor thermometer 31 freely. To do. Accordingly, the thermistor thermometer 31 can be attached to the lid 3, that is, the box 1 in a state where the thermistor thermometer 31 is in contact with the battery 33 without changing the attachment position of the thermistor thermometer 31 to the lid 3.

  Since the support portion 42 includes the protrusion 46 and the groove 47, the thermistor thermometer 31 can be moved reliably.

  Since the support portion 42 includes the aforementioned portion 48 as a drop-off restricting portion, the thermistor thermometer 31 can be prevented from dropping into the box body 1.

  Since the urging unit 43 includes the elastically deformable spring piece 49, the thermistor thermometer 31 can be urged reliably.

  The lid 3 is slid with respect to the box body 2 along the surface of the lid 3, and the lid 3 is attached to the box body 2. Further, the first fixing portion 11 allows the lid 3 to move relative to the box body 2 along the arrow S after the lid 3 is attached to the box body 2. For this reason, even if the dimensions are distorted during manufacturing and the lid 3 becomes too small relative to the box body 2, the attachment mechanism 4 can slide the lid 3 onto the box body 2, and the lid 3 Can be attached to the box body 2.

  That is, even if the lid 3 becomes too small with respect to the box body 2, the standing piece 16 and the back surface of the through groove 13 are separated from the normal state. Therefore, even if the lid 3 is too small with respect to the box body 2, the lid 3 can be securely attached to the box body 2.

  Further, even if the size of the lid body 3 becomes too large with respect to the box body 2 during manufacturing, the mounting mechanism 4 causes the lid body 3 to slide more than the normal state. It can be attached to the box body 2. Furthermore, even if the dimensions are distorted during manufacture and the lid 3 becomes too large with respect to the box body 2, the mounting mechanism 4 slides along the surface of the lid 3, and the lid 3 is moved to the box body. Since it attaches to 2, it can prevent that the cover body 3 falls from the box main body 2 after attaching.

  That is, even if the lid 3 becomes too large with respect to the box body 2, the standing piece 16 and the inner surface of the through groove 13 are closer to the normal state. Therefore, even if the lid body 3 becomes too large with respect to the box body 2, the lid body 3 can be securely attached to the box body 2 and the lid body 3 can be prevented from falling off from the box body 2.

  In the above-described embodiment, the thermistor thermometer 31 is provided with the protrusion 46 and the spring piece 49, and the standing wall 38 is provided with the groove 47. However, in the present invention, as shown in FIGS. 11 to 13, a groove 47 is provided in the thermistor thermometer 31, and a protrusion 46 and a spring piece 49 that protrude (extend) toward the thermistor thermometer 31 on the standing wall 38. May be provided. 11 to 13, the same parts as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In the embodiment described above, the thermistor thermometer 31 is attached to the lid 3. However, in the present invention, the thermistor thermometer 31 may be attached to the box body 2 .

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a disassembled perspective view which shows a part of power supply device provided with the attachment structure of the thermistor thermometer concerning one Embodiment of this invention. It is a disassembled perspective view which shows the attachment structure of the thermistor thermometer of the power supply device shown by FIG. It is a top view which shows the attachment structure of the thermistor thermometer shown by FIG. It is sectional drawing which follows the IV-IV line in FIG. It is sectional drawing which follows the VV line in FIG. It is a perspective view showing a thermistor thermometer mounted in the mounting structure of a thermistor thermometer shown in FIG. It is sectional drawing which follows the VII-VII line in FIG. It is sectional drawing which shows the state which started inserting the thermistor thermometer shown by FIG. 7 in the opening part. It is sectional drawing which shows the state which inserted the thermistor thermometer further into the opening part from the state shown by FIG. It is sectional drawing which shows the state in which a battery is located near a cover body from the state shown by FIG. It is a disassembled perspective view which shows the modification of the attachment structure of the thermistor thermometer of the power supply device shown by FIG. It is sectional drawing which shows the attachment structure of the thermistor thermometer shown by FIG. FIG. 12 is another cross-sectional view showing the mounting structure of the thermistor thermometer shown in FIG. 11.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box body 30 Thermistor thermometer mounting structure 31 Thermistor thermometer 37 Opening part 38 Standing wall 42 Support part 43 Energizing part 46 Projection 47 Groove 48 part (drop-off regulation part)
49 Spring piece

Claims (4)

Through an opening provided in the box body, the mounting structure of the thermistor thermometer attaching a thermistor thermometer has entered the box body to the box body,
A support section that allows the thermistor thermometer to enter the box through the opening, and supports the thermistor thermometer so as to be movable along the direction of entering the box;
The thermistor thermometer that has entered the box body through the opening, and biased toward the inside of the box body, and a biasing portion that Ru is brought into contact with the box body of the battery,
A thermistor thermometer mounting structure characterized by comprising: The box body is provided with a plurality of standing walls standing from the inner edge of the opening,
The support part is
A convex protrusion from one of the thermistor thermometer and the standing wall to the other,
A groove provided on the other side and into which the protrusion enters,
2. The thermistor thermometer mounting structure according to claim 1, wherein the projection penetrates into the groove to support the thermistor thermometer in a movable manner. The attachment of the thermistor thermometer according to claim 2, wherein the support portion includes a drop-off restricting portion that interferes with the protrusion and restricts the thermistor thermometer from dropping into the box. Construction. The box body is provided with a plurality of standing walls standing from the inner edge of the opening,
Wherein the biasing unit is a thermistor thermometer according to claim 1, characterized in that an elastic deformable spring piece with and extends toward the other from one of said vertical wall and said thermistor thermometer Mounting structure.

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