JP2000249062A - Structure and method for fixing linear part connected to compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide structure and a method for fixing a linear part connected to a compressor which can be simplified. SOLUTION: This structure and a method for fixing a linear part connected to a compressor are provided such that when a linear second part formed of a lead wire 2 is fixed at a first part consisting of a front housing 1 constituting a part of the outline of a compressor, a recessed part in a U-shaped groove 4 is formed in the first part, and a tubular elastic body 3 is fitted in an inserted state in the second part and securely mounted in the recessed part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure and a fixing method for fixing a linear component to an electric compressor cheaply, quickly, reliably and easily.

[0002]

2. Description of the Related Art Conventionally, a compressor shown in FIG. 2 has been proposed (see Japanese Utility Model Laid-Open No. 4-95686). As shown in FIG. 2, the compressor 50 includes a cup-shaped housing 51 and a front case 5 fixed to each other by bolts.
2 and a front end wall 53. Housing 51
A drive shaft 55 penetrates the front end wall 53 and protrudes outside the housing 51, and an electromagnetic clutch 56 is mounted on the protruding end. The drive shaft 55 is supported by the housing 51 via bearings 57 and 58. The drive shaft 55 is provided with a sub-balance weight 59 in the housing 51 near the front end wall 53. The scroll type compression mechanism 54
A fixed scroll member 60 and a movable scroll member 61 are provided.

The fixed scroll member 60 includes a side plate 62,
A spiral body 63 erected on the inner surface thereof. A discharge hole 64 is formed at the center of the side plate 62, and one end of a discharge valve 65 and a retainer 66 are fastened to the outer surface of the side plate 62 by bolts 67.

The movable scroll member 61 includes a side plate 68 and a spiral body 69 erected on the inner surface thereof.
Has substantially the same shape as the spiral body 63.

The movable scroll member 61 and the fixed scroll member 60 are eccentric from each other by a predetermined distance, and
The tip seal 71 embedded at the tip end surface of the spiral 63 is closely contacted with the opposing surface of the side plate 68, and the tip seal embedded at the tip end of the spiral 69 is shifted by an angle of 72 is in close contact with the opposing surface of the side plate 62, and the side surfaces of the spirals 63 and 69 are in line contact at a plurality of points, and a plurality of fluid pockets 73 substantially point-symmetric with respect to the center of the spiral.
74 is formed.

An eccentric bush 76 has a bearing 77 inside a cylindrical boss 75 protruding from the center of the outer surface of the side plate 68.
An eccentric pin 79 protruding from one end of the drive shaft 55 is rotatably fitted in an eccentric hole 78 formed in the eccentric bush 77 through the eccentric bush 77.

A rotation preventing mechanism 80 also serving as a thrust bearing is disposed between the outer peripheral edge of the outer surface of the side plate 68 and the inner surface of the front case 52.

In such a conventional compressor, by bringing the electromagnetic clutch 56 into contact, power from a running engine (not shown) is transmitted to the drive shaft 55 via the belt 81 and the electromagnetic clutch 56. Drive shaft 55
Is rotated, the movable scroll member 61 is driven via the eccentric pin 79, the eccentric bush 76, and the boss portion 75, and the movable scroll member 61 is rotated by the rotation prevention mechanism 80.
Performs a turning motion while preventing rotation. Due to this swirling motion, the fluid pockets 73 and 74 move while gradually decreasing in volume along the center of the spiral body. As a result, the fluid taken into the suction chamber 82 is compressed and reaches the center, and is discharged from the discharge hole 64 to the discharge chamber 83 defined inside the housing 51, and is discharged from the discharge port (not shown) to the outside of the machine. Is discharged.

Next, the conventional scroll compressor is provided with a mechanism for detecting the number of revolutions. Specifically,
The front end wall 53 of the housing 51 has a magnet sensor 8 penetrating in the axial direction and facing a subbalance weight 59 made of a magnetic material such as iron at a small interval.
4 are installed. The lead wire 85 having one end fixed to the magnet sensor 84 is drawn through a groove 86 formed in the outer surface of the end wall 53.

When the electromagnetic clutch 56 is mounted on the protruding end of the drive shaft 55, the electromagnetic clutch 56 is guided to the field coil 56a.
The groove 86 is covered by the supporting plate 56b, and the lead wire 85 is sandwiched between the end wall 53 and the electromagnetic clutch 56.

[0011] In the compressor rotation speed detecting mechanism having the above-described structure, during operation of the compressor, the subbalance weight rotates together with the drive shaft, crosses the magnetic flux of the magnet sensor, and is generated by electromagnetic induction at this time. The number of rotations of the compressor is detected by detecting the voltage generation cycle.

Not only the lead wire 85 of the rotation sensor but also various components mounted inside the compressor, the power supply of the electromagnetic clutch, the solenoid valve, and the lead wire of the electric motor, the housing and the front part forming the outer part of the compressor. First such as casing
Need to be fixed to the parts.

FIG. 3 is a partially cutaway view showing a structure for fixing a power supply line of an electromagnetic clutch according to another prior art (hereinafter referred to as prior art 2). As shown in FIG. 3, a front housing 10 attached to a housing 101 of a compressor 100 is provided.
2, a lead wire 103 as a second component connected to an electromagnetic clutch (not shown)
4 and the third part, the holding plate 10 with bolts.
5, the holding plate 105 is fixed by bolting the bolt 106 into a screw hole provided in the front housing 102 via the bolt 106.

[0014]

However, the lead wire fixing structure, which is a linear component as the third component according to the prior art, requires the first component to be formed with a screw hole, which is costly. There was a disadvantage that.

Further, the conventional fixing structure has a drawback that the number of parts such as bolts and holding plates is large.

Furthermore, the conventional fixing structure has the disadvantages that the number of parts is large, and that bolting work and management of bolting with tools are required, which is complicated, time-consuming, and poor in assembly workability. .

Accordingly, it is an object of the present invention to provide a fixing structure and a fixing method for a linear component connected to a compressor which can be simplified.

[0018]

According to the present invention, there is provided a structure for fixing a linear second part to a first part constituting a part of an outer shell of a compressor, wherein the first part has a concave portion. Is provided, and a tubular elastic body is inserted into the second component, and is attached and fixed to the concave portion, thereby obtaining a fixing structure of a linear component connected to a compressor.

According to the present invention, in the method of fixing a linear second component to a first component constituting a part of an outer shell of a compressor, the first component may be provided with a recess. Second
A method of fixing a linear component connected to a compressor, characterized in that a tubular elastic body is inserted into the component and fixed to the recess.

Here, in the present invention, the recess is preferably a U-shaped groove provided in the front housing.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, a scroll compressor similar to that of the related art 1 is used, but the compressor to which the present invention is applied is not limited to the compressors described in the related art. .

FIG. 1 is a partial perspective view showing a fixing structure of a linear component connected to a compressor according to an embodiment of the present invention.

As shown in FIG. 1, a U-shaped groove 4 is formed on an outer peripheral portion of a front housing 1, which is a first part forming a part of an outer shell of the compressor, and has a projected periphery. On the other hand, a tubular elastic body 3 made of rubber is provided with a cutout groove 3a which is formed in the length direction and penetrates to the inside in a linear second component comprising a lead wire 2 for supplying power to an electromagnetic clutch (not shown). Is mounted.

In order to fix the second linear component to the compressor, the tubular elastic body 3 may be mounted together with the lead wire 2 in the U-shaped groove 4.

The tubular elastic body 3 is exemplified by rubber, but is not limited to this as long as it has tubular elasticity.

According to the fixing structure of the linear parts connected to the compressor according to the embodiment of the present invention having such a structure, the parts can be fixed cheaply, quickly, reliably and easily without assembling tools. Can be.

[0027]

As described above, according to the present invention,
Since the threading of the first component is omitted, it is possible to provide a fixing structure and a fixing method of the linear component connected to the compressor, which can reduce the cost.

Further, according to the present invention, since the role of the bolt and the holding plate is fulfilled by the tubular elastic body, for example, one rubber tube, the number of the linear components connected to the compressor can be reduced. A fixing structure and a fixing method can be provided.

Further, according to the present invention, the number of parts is reduced, no tools are used, and the bolting work is eliminated.
It is possible to provide a fixing structure and a fixing method of a linear component connected to a compressor, which facilitates assembling, shortens working time, and improves assembling workability.

Therefore, according to the present invention, it is possible to simplify the fixing structure and the fixing method of the linear parts connected to the compressor.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a fixing structure of a linear component connected to a compressor according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a compressor according to the related art 1.

FIG. 3 is a partially cutaway view showing a structure for fixing a power supply line of an electromagnetic clutch of a compressor according to the related art 2.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front housing 2 Lead wire 3 Tubular elastic body 3a Notch groove 4 U-shaped groove 10 Fixed structure 50 Compressor 51 Housing 52 Front case 53 Front end wall 54 Scroll type compression mechanism 55 Drive shaft 56 Electromagnetic clutch 57, 58 Bearing 59 Subbalance Weight 60 Fixed scroll member 61 Movable scroll member 62, 68 Side plate 63, 69 Spiral body 64 Discharge hole 65 Discharge valve 66 Retainer 67 Bolt 71, 72 Chip seal 73, 74 Fluid pocket 75 Boss 76 Eccentric bush 77 Bearing 78 Eccentric hole 79 Eccentric pin 80 Rotation prevention mechanism 81 Belt 84 Magnet sensor 85 Lead wire 86 Groove 100 Compressor 101 Housing 102 Front end plate 103 Lead wire 104 Tube 105 With bolt Even plate 106 volts

Claims (2)

[Claims] 1. A structure for fixing a linear second component to a first component forming a part of an outer shell of a compressor, wherein the first component has a concave portion, and the second component has a tubular shape. A structure for fixing a linear component connected to a compressor, wherein an elastic body is inserted and fixed in the recess. 2. A method of fixing a linear second part to a first part constituting a part of an outer shell of a compressor, wherein the first part has a concave portion, and the second part has a tubular shape. A method for fixing a linear component connected to a compressor, wherein an elastic body is inserted and fixed in the concave portion.