JPH0754630Y2 - Lead wire support structure in compressor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a support structure for wiring lead wires of a compressor.

[Prior Art] A body of a vehicle air-conditioning compressor is equipped with a temperature sensor for detecting the temperature inside the compressor and a lock sensor for detecting a lock due to foreign matter being caught in a moving part. Lead wires are routed around the compressor.

Therefore, conventionally, as shown in FIG. 6, a bolt seat 31 is projectingly formed on the outer surface of the main body 30a of the compressor 30, a female screw 32a is formed on the bolt seat 31, and the lead wires R are clamped by the clamp fitting 34. The lead wire R is wire-supported by tightening and fixing the clamp fitting 34 to the bolt seat 31 using the bolt 36 and the washer 35.

[Problems to be solved by the invention] Therefore, the bolt 36, the washer 35, etc. are required outside the clamp fitting 34, and the number of parts is increased. did. Therefore, it is necessary to screw the bolt 36 into the female screw 32a using a tool, which causes a problem that the assembly becomes troublesome. Further, the bolt 36 to which the clamp fitting 34 is clamped and fixed may be loosened due to vibration of the engine or the like, and there is a problem in that reliability in wiring support is lacking.

It is an object of the present invention to provide a lead wire support structure in a compressor that can reduce the number of parts, facilitate the work of supporting the wire of the lead wire, and reliably support the clamp fitting to the compressor.

[Means for Solving the Problems] In order to achieve the above object, the invention of the present application forms an insertion hole communicating with the bolt mounting hole from a different direction with respect to the axial direction of the bolt mounting hole on the outer surface of the main body. Of the clamp metal fitting is inserted into the insertion hole so that a part of the clamp metal fitting protrudes outward. A sandwiching portion capable of sandwiching a lead wire of a sensor or the like is formed at a side end portion, and an engaging portion elastically engaged with an inner surface of the insertion hole is formed in the clamp metal fitting between the hooking portion and the sandwiching portion. What is done is the summary.

[Operation] Therefore, when wiring the lead wire, the lead wire is clamped in the lead wire holding portion of the clamp metal fitting, and when the clamp metal fitting is inserted into the insertion hole, the hooking portion is hooked in the bolt mounting hole, and The joint portion elastically engages with the inner surface of the insertion hole to support the lead wire.

[Embodiment] An embodiment embodying the present invention will be described below with reference to FIGS.

FIG. 2 is a plan view showing the upper portion of the compressor P. The tip of the die-cast cylinder block 1 is closed by the die-cast housing 2, and these are fixed by an appropriate number of bolts (not shown). Has been done. The cylinder block 1 and the housing 2 constitute a main body of the compressor P. Further, flange mounting seats 3 and 4 are formed on the upper surface of the end portion of the cylinder block 1 and the upper surface of the housing 2 so as to project. A suction hole 5 communicating with a suction chamber (not shown) and a discharge hole 6 communicating with a discharge chamber (not shown) are formed at the centers of the flange mounting seats 3 and 4, respectively.

Further, a pair of mounting holes 7 and 8 formed of female screws 7a and 8a are formed in the flange mounting seats 3 and 4 on both sides (left and right in FIG. 2) of the suction hole 5 and the discharge hole 6, respectively. Then, a mounting flange 13 to which the suction pipe 12 is attached is attached to the flange side mounting seat 3 on the suction side, and a mounting flange 16 to which the discharge pipe 15 is attached to the flange side mounting seat 4 on the discharge side is one bolt 14 and 17 respectively. And one of the mounting holes 7 and 8 are screwed and fixed, and the suction pipe 12 and the suction hole 5, and the discharge pipe 15 and the discharge hole 6 are connected. It goes without saying that the mounting flanges 13 and 16 may be fixed by using two bolts that are respectively screwed into the mounting holes 7 and 8 at the two locations of the mounting seats 3 and 4, respectively.

As shown in FIGS. 1 and 2, sensor mounting seats 24 are formed on the cylinder block 1 on both left and right sides of the flange mounting seat 4, and these sensor mounting seats 24 are temperature sensors for detecting the temperature inside the compressor P. 9 and a lock sensor 10 for detecting the lock of the drive shaft (not shown) are fixed. A pair of lead wires R are respectively led out from the respective sensors 9 and 10, and a connector C for connection is provided at their tips.
(Only one is shown in FIG. 1).

Between the rear side surface of the flange mounting seat 4 (the lower side in FIG. 1) and the bottom portion of the mounting hole 8, a rectangular insertion hole 11 is communicated so as to extend in a direction orthogonal to the axial direction of the mounting hole 8. It is installed throughout. The insertion hole 11 is formed by a cast hole.

A clamp metal fitting 18 made of a leaf spring material is inserted into the insertion hole 11. As shown in FIG. 3, the clamp metal fitting 18 is bent at an intermediate portion in the longitudinal direction so that a lower insertion piece 19 and an upper insertion piece 20 are formed, and the lead wire R is arranged in parallel at the bent portion. A sandwiching portion 21 for sandwiching in a state is formed, and a semicircular hooking portion is provided at the tip of the upper insertion piece 20.
23 is folded back outward.

Then, when the clamp metal fitting 18 is inserted into the insertion hole 11, the hook portion 23 is hooked on the inner surface of the bottom portion of the mounting hole 8, and the holding portion 21 projects outward, so that the lower insert piece 19 and the upper insert piece are inserted.
A portion between the hooking portion 23 and the holding portion 21 of 20 is engaged with the inner surface of the insertion hole 11 by the elasticity of the insertion pieces 19 and 20 and the holding portion 21.

Now, in order to perform the wiring process of the lead wire R by the clamp metal fitting 18, first, the lead wire R is pinched in the holding portion 21 of the clamp metal fitting 18 with fingers, and the upper and lower insertion pieces 19, 20 are elasticized to them and the holding portion 21. Against the approach.

In this state, if the clamp metal fitting 18 is inserted into the insertion hole 11 from both ends thereof with fingers, the upper and lower insertion pieces 19 and 20 are elastically engaged with the inner surface of the insertion hole 11 and the hooking portion 23 is attached to the mounting hole 8.
, And the lead wire R is supported at a position slightly separated from the outer peripheral surface of the main body of the compressor P.

As described above, the wiring process of the lead wire R can be performed only by inserting and mounting the clamp metal fitting 18 using the mounting hole 8 and the insertion hole 11. As a result, unlike conventional products, bolts, washers, etc.
The number of parts can be reduced.

Further, the mounting hole 8 is conventionally formed for mounting the flanges 13 and 16, and the insertion hole 11 is formed by die casting when the cylinder block 1 is die cast. Therefore, unlike the conventional
Since the work of engraving the female screw 32a on the 31 is not necessary, the production can be simplified.

Further, since the wiring process can be performed only by inserting the clamp metal fitting 18 into the insertion hole 11, the work can be easily performed without using a tool.

When the clamp metal fitting 18 is attached,
Since the hook portion 23 of 20 elastically hooks on the inner peripheral surface of the mounting hole 8,
The clamp metal fitting 18 will not come off the insertion hole 11 due to the vibration of the engine or the like.

Further, the clamp metal fitting 18 can be pulled out from the insertion hole 11 by disengaging the locking portion 23 and the mounting hole 8 so that the upper and lower insertion pieces 19, 20 of the clamp metal fitting 18 are close to each other. It is possible to easily change the wiring relationship.

In the above embodiment, only one mounting hole 7 or 8 is used for mounting the mounting flanges 13 and 16, respectively, and the other is left open. There is no fear that dust will accumulate in the mounting holes 7 and 8 as well as dust. That is, the dew condensation water is discharged to the outside through the insertion hole 11 that communicates with the bottom of the mounting hole 8. Therefore, it is possible to prevent adverse effects such as corrosion due to water.

The present invention is not limited to the above-described embodiment, but may be modified as follows within the scope of the invention.

(1) In the above embodiment, the insertion hole 11 is provided so as to extend in the direction perpendicular to the axial direction of the mounting hole 8.
11 is formed in a slanted shape so that its outer opening side descends, and is formed in a direction oblique to the axis.

(2) The insertion hole 11 should be provided in the housing 2 so as to correspond to the attachment hole 7 on the suction side.

(3) The clamp metal fitting 18 is formed of a wire material having a spring property.

(4) Provide the hooking portions 23 of the clamp metal fittings 18 at both ends thereof. However, in this case, the mounting holes 7 and 8 are placed below the insertion hole 11.
The bottom of must be located.

(5) The lower insertion piece 19 of the clamp metal fitting 18 is shortened so that the lower insertion piece 19 is engaged only with the opening portion of the insertion hole 11.

(6) As shown in FIG. 5, the lower insert piece 19 of the clamp metal fitting 18 is deleted, and the upper insert piece 20 has two upper and lower inner surfaces of the insertion hole 11 between the retaining portion 23 and the sandwiching portion 21. Forming an engaging portion 20a that elastically engages with the.

[Advantages of the Invention] As described above in detail, in the present invention, the lead wires can be processed only by the clamp fittings, the number of parts can be reduced, and the manufacturing can be simplified. . Also, since the clamp metal fitting is attached to the insertion hole only by utilizing its elasticity, the workability of the wiring processing can be improved, and the clamp metal fitting does not come off from the insertion hole due to vibration or the like, and the wiring processing reliability is improved. Can be improved.

[Brief description of drawings]

FIG. 1 is a front view of the compressor showing a state in which an insertion hole is formed, FIG. 2 is a plan view showing the upper surface of the compressor, and FIG.
FIG. 4 is a perspective view showing a clamp fitting, FIG. 4 is a partially enlarged cross-sectional view showing a state where the clamp fitting is attached to the insertion hole, and FIG. 5 is a partially enlarged cross-sectional view showing another example of the present invention. The figure is a partially enlarged sectional view showing a conventional example. 1 …… Cylinder block, 2 …… Housing, 7,8 ……
Mounting hole, 9,10 ... Sensor, 11 ... Insertion hole, 12 ... Suction pipe, 15 ... Discharge pipe, 19 ... Lower insertion piece as an engaging part,
20 ... Upper insertion piece as an engaging part, 21 ... Clamping part, 23 ...
… Latch, R …… lead wire, P …… compressor.

Claims (1)

[Scope of utility model registration request] 1. A compressor having a bolt mounting hole formed on an outer surface of a main body, wherein an insert hole communicating with the bolt mounting hole from a direction different from an axial direction thereof is formed on the outer surface of the main body, and a clamp made entirely of a spring material. The metal fitting is inserted into the insertion hole so that a part of the metal fitting protrudes outward, and the insertion side end of the clamp metal fitting is formed with a latching part which is latched to the bolt mounting hole, and the protrusion side end is formed. In a compressor in which a holding portion capable of holding a lead wire of a sensor or the like is formed, and an engaging portion which elastically engages the inner surface of the insertion hole is formed in the clamp metal fitting between the hooking portion and the holding portion. Lead wire support structure.