KR200183359Y1 - Manifold of a compressor - Google Patents

Abstract

The present invention relates to a compressor manifold that can accurately detect a gasket after assembling the compressor and visually detect oil leakage or by a sensor. The upper manifold 14 and the lower manifold 15 In the manifold of the compressor in which the gasket is interposed between the divided and facing portions, a groove 19 for seating the gasket 20 is formed on the facing portion of the upper and lower manifolds, and the groove is centered on the groove. An outer slot 21 and an inner slot 22 are formed to penetrate the inside and the outside of the manifold on both sides, respectively.

Description

Manifold of compressor

The present invention relates to a compressor for compressing a heating medium, and in particular, it is possible to detect the omission of a gasket interposed between a lower manifold integrally formed on an upper surface of a housing of a compressor and an engaging surface of an upper manifold that engages the lower manifold. A compressor manifold.

Automotive air conditioning systems employ steam compression refrigeration cycles. The vapor compression refrigeration cycle is sequentially connected to the compressor, condenser, expansion valve and evaporator in a sealed state by a tube, and the phase change is repeatedly circulated through the heat medium injected therein. Cool the air.

In the above-mentioned freezing cycle, the compressor compresses the heat medium and circulates the cycle by the compressive force, and compresses the low-temperature / low-pressure heat medium sucked from the evaporator to high temperature and high pressure and discharges it to the condenser.

In this way, the heat medium sucked or compressed by the evaporator and discharged to the condenser is passed through the manifold of the compressor while maintaining a constant pressure. The manifold is usually a lower manifold and the lower manifold communicating with the upper surface of the rear housing of the compressor. It consists of an upper manifold that engages the fold. A gasket is interposed between the lower manifold and the upper manifold to prevent leakage of the heat medium.

For example, in the conventional compressor manifold, as shown in FIGS. 5 and 6, the lower manifold 2 is integrally formed on the upper surface of the rear housing 1, and the lower manifold 2 is a suction in which suction and discharge of the heat medium are performed. The chamber 4 and the discharge chamber 5 are separated by the dividing wall 6, and a groove 8 for seating the gasket 7 is formed on the upper surface thereof, and the upper manifold 3 corresponding thereto is formed. ) Has the same structure.

And if the upper manifold (3) and the lower manifold (2) is combined, the gasket is usually inspected for missing, but it is checked by automatic sensing or precise leak test. Can not confirm.

The present invention has been devised in view of this point, and an object of the present invention is to provide a compressor manifold that can accurately detect whether a gasket is missing after assembling the compressor or by a sensor or a sensor.

The above object can be achieved by forming slots inside and outside to communicate with grooves of the manifold formed by the combination of the upper and lower manifolds. According to this configuration, the slots can be formed even when the upper and lower manifolds are assembled. The gasket can be directly visually checked for omission of the gasket, and if the gasket's seating condition is poor, the internal pressure of the compressor is remarkable compared to the set pressure. Therefore, the accuracy of the sensor cannot be expected due to the minute pressure difference. Can improve the reliability.

1 is a perspective view showing a compressor of the present invention,

Figure 2 is a plan view of the lower manifold of the present invention,

3 is a cross-sectional view of a state in which the manifold of the present invention is coupled;

Figure 4 is a plan view of the lower manifold showing the machining position of the slot according to the present invention,

5 is a plan view taken from a conventional manifold,

6 is a plan view extracting the conventional lower manifold,

* Description of the symbols for the main parts of the drawings *

10; compressor 11; front housing

12; rear housing 13; manifold

14; top manifold 15; bottom manifold

16; partition 19; groove

20; gasket 21; inner slot

22; outside slot

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view showing the appearance of the compressor according to the present invention, Figure 2 is a plan view showing the lower manifold of the present invention, Figure 3 is a cross-sectional view of the coupling manifold. Compressor indicated by the total sign 10 is divided into the front housing 11 and the rear housing 12, the cylinder block is built so as to face the inside and the piston reciprocates in the cylinder bore formed in the cylinder block to suck the heat medium And compression.

On the upper surface of the rear housing 12, a manifold 13 for distributing refrigerant gas is coupled to communicate with the cylinder block.

The manifold 13 is divided into an upper manifold 14 and a lower manifold 15, and the upper manifold 14 and the lower manifold 15 are integrally molded with the rear housing 12. It is face-to-face bonded and tightened with a bolt.

The lower manifold 15 is integrally injection-molded on the upper surface of the rear housing 12 to form a space having a constant depth in the shape of an enclosure having an upper opening, in which the partition wall 16 crosses the center. The suction chamber 17 and the discharge chamber 18 are adjacent to both sides of the dividing wall 16.

A groove 19 having a predetermined depth is formed on the upper surface of the lower manifold 15, and a gasket 20 is seated on the groove 19 to maintain the airtightness of the refrigerant gas collected in the manifold 13. The upper manifold 14 corresponding thereto is formed in the same shape to form the manifold 13 by coupling the lower manifold 15 to face each other.

In addition, the present invention forms an inner slot 21 and an outer slot 22 on the wall of at least one of the upper and lower manifolds 14 and 15 so as to communicate with the groove 19 inward and outward. By doing so, the gasket 20 can be checked visually. The formation of the inner and outer slots 21 and 22 can be used not only for the naked eye but also for pressure measurement because the outside of the suction chamber 17 or the discharge chamber 18 communicates with the outside of the manifold.

The positions of the inner and outer slots 21 and 22 can be changed and designed to be self-contained. In this embodiment, the positions of the inner and outer slots 21 and 22 are located in a straight line, but as shown in FIG. 5, the inner and outer slots 21 and 22 are shifted so that the outside and the inside can be communicated. have. In addition, it can be formed over the circumferential direction of the upper and lower manifolds, and in particular, when formed on the rear of the manifold of the compressor, it is possible to visually check whether the oil leaks.

The depth of the inner and outer slots 21 and 22 should not be deeper than the depth of the groove 19 at least, and the bottom and the step of the groove 19 may be formed as much as possible.

As such, the present invention in which the inner and outer slots 21 and 22 are formed in communication with the grooves 19 of the lower manifold 15 is an integral part of the lower manifold 15 that is injection molded into the rear housing 12. In assembling the upper manifold 14 on the upper surface, the gasket 20 is seated in the groove 19 formed on the upper surface of the lower manifold 15, and then the upper manifold 14 is faced and fastened with a bowl.

After that, the quality of the assembled compressor is inspected. The inspection is mainly performed by visual inspection or by a sensor to check whether the gasket is correctly placed on the groove and whether the gasket is correctly seated. This is possible because the inner side and the outer side communicate with each other.

First, since the slots 21 and 22 are machined on both the inside and the outside of the manifold by the pressure check method, if the gasket 20 is missing on the groove 19 of the upper and lower manifolds, the suction chamber ( 17) or when the pressure is applied to the discharge chamber 18, the pressure leaks through the slot, so it can be checked whether or not it is missing.

Second, when the clutch assembly is assembled, the compressor is usually assembled upright. In this case, if the inner and outer slots 21 and 22 are processed on the rear side, oil leakage occurs when the gasket is missing, so that the gasket can be checked visually. Do.

Third, by processing the inner and outer slots 21 and 22 in a straight line to irradiate light, it is possible to confirm whether the gasket is missing by the light sensitivity.

As described above, the present invention has a structure in which a slot is formed in the contacting part of the manifold of the compressor which is divided into two parts so that it is easy to check whether a single piece of the gasket is missing. Cost reduction effect can be expected by giving scrap rate of each processed parts.

Claims (3)

In a manifold of a compressor in which a gasket is interposed between an upper manifold and a lower manifold and facing each other, a groove for mounting a gasket is formed on a portion of the upper and lower manifolds facing each other, and the groove is formed. Compressor manifold, characterized in that the outer slot and the inner slot is formed to penetrate the inside and the outside of the manifold on both sides as a center. 2. The compressor manifold of claim 1 wherein the inner and outer slots are in a straight line. The compressor manifold of claim 1, wherein the inner slot and the outer slot are positioned to be offset from each other.