JP5851675B2 - Air conditioner wiring fixing device - Google Patents

Description

  The present invention relates to a wiring fixing device for an air conditioner that fixes a wiring that is drawn into a unit from the outside and connected to a terminal block of a control box in the unit.

  The outdoor unit of the air conditioner is connected to an external power source via a power cable in order to take in electric power in the field installation work. One end of this power cable is drawn into the unit from a wiring hole provided on the outer plate of the outdoor unit and connected to the terminal block of the control box, so that power is supplied from the control box to each device in the outdoor unit. Configured to be On the other hand, the power cable is usually fixed in the unit so that it is not pulled out when pulled by an external force from the outside of the unit.

  Regarding the fixing of the power cable, the displacement at the connection part is 2 mm or less even if the wiring is pulled with a force of 100 N according to the standards, etc., the clamp for fixing the wiring is insulative, and the clamp comes off. It is required to have a difficult structure. In order to satisfy such a requirement, conventionally, for example, a structure in which a wiring is fastened and fixed to a bracket in a unit via a tie wrap band, or as shown in Patent Document 1, a floating holding portion is provided on one side. Provided, spreads upward on the other side, forms a wedge surface on the inclined part, and provides an acute groove on this wedge surface, allowing the VVF cable to pass through the fixed part and sandwiched between the wedge surface and the groove What is fixed is known.

JP-A-4-254123 (see FIGS. 1 to 3)

  However, with tie wrap bands, the structure receives external force with the tightening force of the band, so whether or not the wiring can be fixed so as not to move depends on the tightening force of the band. In some cases, the wiring is not sufficiently fixed. In addition, the one shown in Patent Document 1 is difficult to work because it is necessary to pass the wiring through the floating holding part, and because the wedge surface spreads upward, it is pulled against the wiring, If the slack is repeated, there is a problem that the clamp may be released by rising from the wedge surface.

  The present invention has been made in view of such circumstances, and is easy to attach to the wiring and the fixing portion, and can firmly fix the wiring against pulling by an external force, and can be used for wiring with different wire diameters. An object of the present invention is to provide a wiring fixing device for an air conditioner that can be widely used.

In order to solve the above-described problems, the air conditioner wiring fixing device of the present invention employs the following means.
That is, the air conditioner wiring fixing device according to the present invention is an air conditioner wiring fixing device that is pulled into the unit from the outside and fixes the wiring connected to the terminal block of the control box in the unit. The wiring fixing device includes a through hole having a constant diameter provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through hole. The shaped elastic member has an inner peripheral hole through which the wiring passes and an outer periphery tapered in the length direction, and a notch of a predetermined angle is provided between the inner and outer periphery. The wire penetrating through the inner peripheral hole of the cylindrical elastic member is fastened and fixed by fitting the through hole with the conical outer periphery of the cylindrical elastic member. Tensile force is generated from the outside When, characterized in that it is tightened by being elastically deformed in response to said tubular elastic member pulling force.

According to the present invention, the wiring fixing device has a fixed-diameter through-hole provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through-hole. The cylindrical elastic member has an inner peripheral hole through which the wiring passes and an outer periphery that is tapered in the length direction, and a notch of a predetermined angle is formed between the inner and outer periphery. The wiring that has been provided and penetrated through the inner peripheral hole of the cylindrical elastic member is fastened and fixed by fitting the through hole with a constant diameter and the outer periphery of the cylindrical elastic member in a conical shape, When a tensile force is generated from the outside to the wiring, the cylindrical elastic member is elastically deformed according to the tensile force so as to be held tightly. Therefore, when the wiring is pulled by an external force, a tapered shape is formed. Cylinder having a conical outer periphery Resilient member is equally tightened from the entire circumferential direction through the through-hole of a predetermined diameter is elastically deformed, it can be generated evenly frictional force from all around the wiring that is penetrated into the inner peripheral hole. Therefore, the wiring can be firmly and securely fixed and held so as not to sag against the external force. Further, since the wiring can be passed through the inner peripheral hole of the cylindrical elastic member through the notch, the operation of penetrating the wiring into the inner peripheral hole can be facilitated. Furthermore, even for wires of different wire diameters, the notches can be opened and closed elastically to allow the wires to pass through the inner peripheral hole, and the tapered outer periphery can be fitted into the through hole. Therefore, it is possible to deal with a wide range of wirings having different wire diameters with one type of cylindrical elastic member.

Furthermore, the air conditioner wiring fixing device according to the present invention is an air conditioner wiring fixing device which is pulled into the unit from the outside and fixes the wiring connected to the terminal block of the control box in the unit. The wiring fixing device includes a through hole having a constant diameter provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through hole. The elastic member has an inner peripheral hole through which the wiring penetrates and an outer periphery that is tapered along the length direction so as to shrink toward the drawing direction of the wiring. An angle cutout is provided, and the wiring penetrated through the inner peripheral hole of the cylindrical elastic member is tightened by fitting the through hole and the tapered outer periphery of the cylindrical elastic member. With being fixed When the tensile force from the outside is generated in the wiring, characterized in that it is tightened by being elastically deformed in response to said tubular elastic member pulling force.

According to the present invention, the wiring fixing device has a fixed-diameter through-hole provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through-hole. The cylindrical elastic member has an inner peripheral hole through which the wiring penetrates, and an outer periphery tapered so as to be reduced in the length direction along the drawing direction of the wiring. A notch of a predetermined angle is provided between the peripheries, and the wiring penetrating through the inner peripheral hole of the cylindrical elastic member is formed by fitting the through hole having a constant diameter with the tapered outer periphery of the cylindrical elastic member. In addition to being tightened and fixed, when a tensile force is generated on the wiring from outside, the cylindrical elastic member is elastically deformed according to the tensile force so that the wiring is pulled by an external force. When tapered, Cylindrical elastic member having a peripheral is tightened via a through hole of a predetermined diameter is elastically deformed, a frictional force can be generated with respect to the wiring that is through the inner peripheral hole. Therefore, the wiring can be firmly fixed and held so that the wiring does not sag against the external force. Further, since the wiring can be passed through the inner peripheral hole of the cylindrical elastic member through the notch, the operation of penetrating the wiring into the inner peripheral hole can be facilitated. Further, even for wirings with different wire diameters, the notch can be opened and closed elastically to allow the wiring to pass through the inner peripheral hole, and the tapered outer periphery can be fitted into the through hole. Various types of cylindrical elastic members can be used for a wide range of wires having different wire diameters.

  Furthermore, the wiring fixing device for an air conditioner according to the present invention is characterized in that in any of the above-described wiring fixing devices for an air conditioner, the cylindrical elastic member is made of a rubber material.

  According to the present invention, since the cylindrical elastic member is composed of a rubber material, for example, by using a rubber material such as chloroprene rubber called a neoprene rubber (trade name), excellent frictional force and elasticity are achieved. It can be set as the cylindrical elastic member which has a characteristic and a weather resistance. Therefore, it is possible to firmly fix the wiring so that deterioration and slack do not occur over a long period of time.

  Furthermore, the wiring fixing device for an air conditioner according to the present invention is the above-described wiring fixing device for an air conditioner, wherein the notch of the cylindrical elastic member has a notch angle of approximately 20 to 30 °. It is characterized by.

  According to the present invention, since the cutout angle of the cutout of the cylindrical elastic member is approximately 20 to 30 °, even for a wiring whose wire diameter changes in the range of 9 to 15 mm depending on the capacity or the like, By opening and closing the notch elastically, it is possible to easily attach a cylindrical elastic member having an inner peripheral hole diameter of, for example, about 12 mm around the wiring. Therefore, it is not necessary to prepare a cylindrical elastic member for each different wire diameter, so that productivity can be reduced and costs can be reduced, and the operation of penetrating the wiring through the cylindrical elastic member can be facilitated. Can do.

  Furthermore, the wiring fixing device for an air conditioner according to the present invention is the above-described wiring fixing device for an air conditioner, wherein the cylindrical elastic member is provided with a stepped return on the outer periphery. Features.

  According to the present invention, since the return is provided in a stepped manner on the outer periphery of the cylindrical elastic member, the return of the cylindrical elastic member fitted in the through hole of the wiring fixing portion is prevented by the return. can do. Accordingly, the slack of the cylindrical elastic member can be prevented, and the wiring can be stably fixed against an external force.

  Furthermore, the wiring fixing device for an air conditioner according to the present invention is the above-described wiring fixing device for an air conditioner, wherein the cylindrical elastic member is divided into two parts and connected by a connecting portion. It is characterized by that.

  According to the present invention, since the cylindrical elastic member is divided into two parts and connected by the connecting portion, the wiring is easily sandwiched between the two divided elastic elastic members. A cylindrical elastic member can be mounted, and the wiring can be fixed by fitting it into the through hole. Accordingly, the fixing work of the wiring can be further facilitated, and the two divided cylindrical elastic members are connected to each other by the connecting portion, so that the parts are separated and the assemblability is deteriorated or lost. Can be handled in the same manner as an integral cylindrical elastic member.

According to the present invention, when the wiring is pulled by an external force, the cylindrical elastic member having a conical or tapered outer periphery is tightened through a through hole having a constant diameter, elastically deformed, and penetrated through the inner peripheral hole. Since a frictional force can be generated against the existing wiring, the wiring can be firmly and securely fixed and held so that the wiring does not sag against the external force. Further, since the wiring can be passed through the inner peripheral hole of the cylindrical elastic member through the notch, the operation of penetrating the wiring into the inner peripheral hole can be facilitated. Furthermore, even for wirings with different wire diameters, the notch can be opened and closed elastically to allow the wiring to pass through the inner peripheral hole, and a conical or tapered outer periphery can be fitted into the through hole. Therefore, a single type of cylindrical elastic member can be widely used for wirings having different wire diameters.

It is a perspective view of the state which removed a part of panel which shows the arrangement structure in the unit of the wiring fixing device of the air harmony machine concerning a 1st embodiment of the present invention. It is the disassembled perspective view which expanded the wiring fixing device of the air conditioner shown in FIG. It is sectional drawing of the wiring fixing device of the air conditioner which concerns on 2nd Embodiment of this invention. It is a perspective view of the cylindrical elastic member used for the wiring fixing device of the air conditioner which concerns on 3rd Embodiment of this invention.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 shows a perspective view of the air conditioner wiring fixing device according to the first embodiment of the present invention in a state where a part of the panel showing the arrangement structure in the unit is removed, and FIG. The exploded perspective view which expanded the wiring fixing device is shown.
An air conditioner (here, an example of application to an outdoor unit 1) 1 includes a casing (unit) 2 having a vertically long rectangular parallelepiped shape.

  In the housing (unit) 2, a compressor, a four-way switching valve, an outdoor heat exchanger, an outdoor expansion valve, an outdoor piping, an operation valve, an accumulator, an outdoor fan 3 and a control that are components of the outdoor unit 1 are provided. Box 4 etc. are accommodated and installed. The control box 4 is disposed in the upper part of the housing 2 and incorporates control devices for controlling the compressor, the four-way switching valve, the outdoor expansion valve, the outdoor fan 3, and the like. A terminal block 5 is provided on the front side of the control box 4, and a wiring 6 such as a power cable connected to an external power source is connected thereto.

  The wiring 6 connected to the external power source is drawn into the housing (unit) 2 through the wiring hole 8 of the lid 7 provided in the lower portion of the housing 2, and the end thereof is connected to the terminal block 5. Connected. The wiring 6 is fixed in the housing (unit) 2 via the wiring fixing device 9 in the vicinity of the terminal block 5 so that it does not come out even when pulled by a certain external force from the outside.

  As shown in FIG. 2, the wiring fixing device 9 includes a wiring fixing part 11 obtained by cutting and raising a part of a bracket 10 provided in the housing 2, and is formed in the wiring fixing part 11. And a cylindrical elastic member 13 fitted into the through hole 12. The cylindrical elastic member 13 is a cylindrical body having an inner peripheral hole 14 through which the wiring 6 is penetrated and an outer periphery 15 having a tapered shape in the length direction. A notch 16 is provided in which a part is notched at a predetermined angle.

  The inner peripheral hole 14 of the cylindrical elastic member 13 is 1 for the wiring 6 having a thickness of about 9 to 15 mm in which the wire diameter can be changed according to the capacity or the like in the outdoor unit 1 of this type of air conditioner. The inner diameter is about 12 mm in the middle so that the cylindrical elastic member 13 of a kind can cope with it. The notch angle θ of the notch 16 allows the wiring 6 to be easily penetrated through the inner peripheral hole 14 through the notch 16 and is not suitable for the wiring 6 having a wire diameter of about 9 to 15 mm. It is set in a range of approximately 20 to 30 ° so that the cylindrical elastic member 13 can be mounted around the wiring 6 by elastically opening and closing the notch 16.

  The cylindrical elastic member 13 is made of a rubber material such as chloroprene rubber called a neoprene rubber (trade name), for example, so as to have excellent frictional force, elastic characteristics, and weather resistance against the wiring 6. ing.

With the configuration described above, according to the present embodiment, the following operational effects can be obtained.
In the field installation work of the outdoor unit 1, when the wiring 6 such as a power cable drawn into the housing (unit) 2 from the wiring hole 8 is fixed in the unit, it is first passed through the through hole 12 of the wiring fixing portion 11. The cylindrical elastic member 13 is pushed into the outer periphery of the wiring 6 connected to the terminal block 5 through the notch 16 so that the wiring 6 passes through the inner peripheral hole 14, and the cylindrical elastic member 13 is connected to the wiring 6. Wear around.

  Next, by fitting the cylindrical elastic member 13 through which the wiring 6 has passed into the through hole 12 of the wiring fixing portion 11 from the small diameter end side, and fitting the tapered outer periphery 15 into the through hole 12 while being elastically deformed, The wiring 6 penetrating the inner peripheral hole 14 is tightened, and the wiring 6 can be firmly fixed to the wiring fixing portion 11 by the frictional force. For this reason, even when the wiring 6 is pulled by an external force, the cylindrical elastic member 13 having the tapered outer periphery 15 is elastically deformed by being tightened by the through hole 12 and penetrated through the inner peripheral hole 14. The frictional force can be generated with respect to 6.

  Thereby, the wiring 6 such as the power cable can be firmly fixed in the unit 2 so as not to be slackened against an external force. Further, since the wiring 6 can be easily passed through the inner peripheral hole 14 through the notch 16 provided in the cylindrical elastic member 13, the work of passing the wiring 6 through the inner peripheral hole 14 is facilitated. Can do. Further, the notch 16 can be elastically opened and closed with respect to the wiring 6 having different wire diameters to allow the wiring 6 to pass through the inner peripheral hole 14, and the tapered outer periphery 15 can be fitted into the through hole 12. Therefore, a single type of cylindrical elastic member 13 can cope with a wide range of wirings 6 having different wire diameters.

  Further, the outer periphery 15 of the cylindrical elastic member 13 has a conical shape. For this reason, when the wiring 6 is pulled by an external force, the cylindrical elastic member 13 can be elastically deformed by evenly tightening the cylindrical elastic member 13 from the entire circumferential direction by the through holes 12. As a result, a frictional force can be evenly applied to the wiring 6 from the entire circumference, and therefore, the wiring 6 can be firmly and securely fixed so as not to loosen against the external force.

  Further, the notch angle θ of the notch 16 provided in the cylindrical elastic member 13 is set to approximately 20 to 30 °. For this reason, the inner diameter of the inner peripheral hole 14 is, for example, about 12 mm by elastically opening and closing the notch 16 even for the wiring 6 whose wire diameter changes in the range of 9 to 15 mm according to the capacity and the like. The cylindrical elastic member 13 can be easily mounted around the wiring 6. Therefore, it is not necessary to prepare the cylindrical elastic member 13 for each different wire diameter, so that the productivity can be reduced and the cost can be reduced, and the operation of penetrating the wiring 6 through the cylindrical elastic member 13 is easy. Can be

  Furthermore, since the cylindrical elastic member 13 is made of a rubber material, for example, by using a rubber material such as chloroprene rubber called a neoprene rubber (trade name), excellent frictional force, elastic characteristics, and weather resistance are obtained. It can be set as the cylindrical elastic member 13 which has these. Therefore, the wiring 6 can be firmly fixed so that deterioration and slack do not occur over a long period of time.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
This embodiment is different from the first embodiment described above in that a return 15A is provided on the outer periphery 15 of the cylindrical elastic member 13. Since other points are the same as those in the first embodiment, description thereof will be omitted.
In the present embodiment, as shown in FIG. 3, when the outer periphery 15 of the cylindrical elastic member 13 is fitted into the through hole 12, it is caught by the peripheral edge of the through hole 12 to prevent loosening in the anti-fitting direction. It is set as the structure which provided the shape | shape return 15A.

  In this way, by providing a stepped return 15A on the outer periphery 15 of the cylindrical elastic member 13, the cylindrical elastic member 13 fitted in the through hole 12 of the wiring fixing portion 11 in the anti-fitting direction. The slack can be prevented by the return 15A. For this reason, slack of the cylindrical elastic member 13 can be prevented, and the wiring 6 can be stably fixed against an external force.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
The present embodiment differs from the first embodiment described above in that the cylindrical elastic member 13 is divided into two parts. Since other points are the same as those in the first embodiment, description thereof will be omitted.
In the present embodiment, as shown in FIG. 4, the cylindrical elastic member 13 is divided into a cylindrical elastic member 13A and a cylindrical elastic member 13B in the left and right directions, and the cylindrical elastic member 13A and the cylindrical elastic member 13B. Are connected by a connecting portion 13C.

  Thus, the cylindrical elastic member 13 is divided into the cylindrical elastic member 13 </ b> A and the cylindrical elastic member 13 </ b> B in the left and right directions, and the cylindrical elastic member 13 is connected by the connecting portion 13 </ b> C. The cylindrical elastic members 13A and 13B can be easily mounted around the wiring 6 by sandwiching the wiring 6 from both sides with the members 13A and 13B. The wiring 6 can be fixed by fitting the cylindrical elastic members 13 </ b> A and 13 </ b> B into the through holes 12.

  For this reason, the fixing work of the wiring 6 can be further facilitated, and the two divided cylindrical elastic members 13A and 13B are connected to each other by the connecting portion 13C. Can be handled in the same manner as the integral cylindrical elastic member 13.

  In addition, this invention is not limited to the invention concerning the said embodiment, In the range which does not deviate from the summary, it can change suitably. For example, in the above-described embodiment, the example in which the outer periphery of the cylindrical elastic member 13 has a conical shape has been described. However, the present invention is not limited to this, and may be a polygonal pyramid shape such as a quadrangular pyramid shape. It is. Moreover, it is good also as a structure which provided the return | turnback so that the wiring 6 could be firmly gripped in the internal peripheral surface of the internal peripheral hole which the wiring 6 of the cylindrical elastic member 13 penetrates.

  Furthermore, although the said embodiment demonstrated the example which applied this invention to the wiring fixing device 9 of the outdoor unit 1, it is not limited to the wiring fixing device 9 of the outdoor unit 1, In the indoor unit of an air conditioner Of course, when it is necessary to fix the wiring drawn into the unit, the same applies. Further, the length of the cylindrical elastic member 13 is not particularly limited, but it is needless to say that the length is set so as to obtain an appropriate frictional force.

1 Air conditioner (outdoor unit)
2 Case (unit)
4 Control box 5 Terminal block 6 Wiring 9 Wiring fixing device 11 Wiring fixing portion 12 Through hole 13 Cylindrical elastic members 13A, 13B Two divided cylindrical elastic members 13C Connecting portion 14 Inner peripheral hole 15 Outer periphery 15A Return 16 Notch θ Notch angle

Claims (6)

In the air conditioner wiring fixing device, which is pulled into the unit from the outside and connected to the terminal block of the control box and fixed in the unit
The wiring fixing device comprises a through hole having a constant diameter provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through hole.
The cylindrical elastic member has an inner peripheral hole through which the wiring passes and an outer periphery tapered in a length direction, and a notch of a predetermined angle is provided between the inner and outer periphery. With the configuration,
The wiring penetrating through the inner peripheral hole of the cylindrical elastic member is fastened and fixed by fitting the through hole and the outer periphery of the cylindrical elastic member in a conical shape, and is externally attached to the wiring. A wiring fixing device for an air conditioner, wherein when a tensile force is generated, the cylindrical elastic member is clamped and held by being elastically deformed according to the tensile force. In the air conditioner wiring fixing device, which is pulled into the unit from the outside and connected to the terminal block of the control box and fixed in the unit,
The wiring fixing device comprises a through hole having a constant diameter provided in a wiring fixing portion obtained by cutting and raising a part of a bracket provided in the unit, and a cylindrical elastic member fitted in the through hole.
The cylindrical elastic member has an inner peripheral hole through which the wiring is penetrated and an outer periphery tapered so as to be reduced along the length direction toward the drawing direction of the wiring. Is provided with a notch of a predetermined angle,
The wiring penetrated through the inner peripheral hole of the cylindrical elastic member is fastened and fixed by fitting the through hole and the tapered outer periphery of the cylindrical elastic member, and a tensile force is applied to the wiring from the outside. When this occurs, the tubular elastic member is clamped and held by being elastically deformed in accordance with a tensile force.   The wiring fixing device for an air conditioner according to claim 1 or 2, wherein the cylindrical elastic member is made of a rubber material.   The wiring fixing device for an air conditioner according to any one of claims 1 to 3, wherein the notch of the cylindrical elastic member has a notch angle of approximately 20 to 30 °.   The wiring fixing device for an air conditioner according to any one of claims 1 to 4, wherein the cylindrical elastic member is provided with a stepped return on the outer periphery.   The wiring fixing device for an air conditioner according to any one of claims 1 to 5, wherein the cylindrical elastic member is divided into two parts and connected by a connecting portion.

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