CN201433896Y

CN201433896Y - Shell for compressor

Info

Publication number: CN201433896Y
Application number: CN2009200537976U
Authority: CN
Inventors: 田村贵宽; 杨家祥; 黄启辉; 江锡林; 伍圣念; 曹骥; 赵艳玲
Original assignee: HIACHI COMPRESSOR PRODUCTS (GUANGZHOU) CO Ltd
Current assignee: Johnson Controls Hitachi Wanbao Compressor Guangzhou Co Ltd
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-03-31
Anticipated expiration: 2019-03-31

Abstract

The utility model relates to electromechanical and refrigeration technical fields and provides a shell for a compressor, which comprises an outer shell, an upper shell and a lower shell which are combined together. An air suction pipe, an exhaust pipe and a sealed wiring terminal are welded on the shell. The shell is characterized in that a perforated reinforcement plate is welded at the inner side or the outer side of the sealed wiring terminal. The optimum scheme is that the upper shell is provided with a temperature controller hole; a temperature controller is installed in the temperature controller hole; and a perforated reinforcement plate is welded at the inner side or the outer side of the temperature controller hole. The shell is characterized in that firstly, the strength of the shell is enhanced through local reinforcement and the thickness of the steel plate of the entire shell is unnecessary to be increased, thus saving material cost; secondly, by installing the temperaturecontroller on the shell, the temperature of the compressor during operation can be detected at real time, and the motor of the compressor can be controlled so as to avoid over temperature which causes damages to the compressor; thirdly, the shell has good universality and is applicable for compressors with different displacements; and fourthly, the shell is easy to manufacture and check and is high in production efficiency and low in manufacturing cost.

Description

Compressor housing

Technical field

The utility model relates to electromechanics and refrigeration technology field, is specifically related to compressor housing.

Technical background

Along with the raising day by day of living standards of the people, the household ownership rate of air-conditioning is rising year by year, and the year of air-conditioning is also progressively improving with the shared share of steel material, and wherein the ratio that accounts for of compressor housing component is maximum.For the demand of suitable high-efficiency environment friendly, the R410a refrigerant is substituting the R22 refrigerant gradually at present, but the working pressure of R410a refrigerant is 1.6 times of the R22 refrigerant, and the sheet material that will make compressor housing adopt like this will increase thickness.The housing of compressor can be used as a pressurized container and carries out intensive analysis, and wherein the weakest position is exactly perforate position on the housing.Therefore can consider that local the reinforcement carried out at the opening in shell position improves whole voltage endurance capability, reaches the purpose that reduces monolithic case thickness.

Sealed wiring post position with scroll compressor is that example describes below, and this principle also is the opening part that is applicable to all kinds compressor.

Figure 1 shows that existing scroll compressor structural representation.As shown in the figure, this scroll compressor comprises housing (being made of upper shell 11, main casing 12 and lower shell body 13), portion of mechanism (comprising static vortex disk 2, movable orbiting scroll 3, supporting base 4, bearing 5 and bent axle 8) and motor (comprising stator 6 and rotor 7).In being discharged to the exhaust cavity that shell forms after compression chamber (constituting) compression of gas by the sucking pipe A access mechanism portion that links to each other with the outside structure by static vortex disk 2 and movable orbiting scroll 3, housing will bear higher gas pressure intensity, along with the gas working pressure is high more, the requirement of housing being born pressure also increases gradually, if casing rigidity is not enough, very easily causes the distortion of housing, even leak, break, influence the compressor normal function, even can cause occurring security incident.Therefore, guarantee that the intensity of housing is most important concerning compressor, not only influence performance and reliability, but also can have influence on its Security.

Easy deformation, the weakest position are the aperture portion of housing behind the housing pressurized, and along with the perforate aperture is big more, the degree of weakening is also serious more.Sucking

pipe

14,16 3 positions of outlet pipe 15 and sealed wiring post all need be connected on compressor case in perforate, and the perforate that sealed wiring post 16 places need is maximum, and two side pressure difference maximums, is housing the weakest stressed position.

The sealed wiring post is made up of wiring terminal plate 17, pin 19 and vitreous humor 20 usually, between wiring terminal plate and pin by vitreous humor insulation be connected and fixed.Usually the wiring terminal plate of sealed wiring post 16 generally is no more than 2mm because the requirement of combination property (planeness, weld strength etc.) can't be adopted very thick material.When pressure is born in compressor case inside, the shell at sealed wiring post position at first deforms, if distortion acquires a certain degree, since asynchronous with the distortion of sealed wiring post, may cause hidden danger such as sealed wiring post weld leaks, vitreous humor bursts apart, terminal collapses to occur.For fear of described hidden danger, common way is to adopt increase housing integral thickness to reduce distortion, improves the housing voltage endurance capability.There is following defective in this method:

1. manufacture cost height: in order to satisfy higher gas pressure, need to increase housing integral plate thickness, increase cost of material.

2. versatility is poor: to the compressor of different displacements, need select the steel plate of different-thickness for use according to the difference of its requirement of withstand voltage, versatility is poor.

3. manufacturing efficiency is low: different types, need steel plate with different-thickness, and cause description of materials too much, reduce manufacturing efficiency.

4. to the shell of roll-forming, after the sheet material thickening, the equipment working pressure of all roll bendings, shaping, perforate will increase, and can cause the equipment input to increase.

The model utility content

The purpose of this utility model provides a kind of compressor housing, improve the compressive strength of housing by the method that the part is strengthened, and do not need to increase the housing integral thickness, temperature when being the use of control housing by the method that temp controller is installed at housing again, this compressor housing is convenient to manufacturing and quality inspection, versatility is good, can enhance productivity, reduce manufacture cost.

The purpose of this utility model can realize by following technical solution:

A kind of compressor housing, by frame, upper shell and lower shell body be combined into, upper shell is connected with sucking pipe, frame is connected with outlet pipe and sealed wiring post, frame is offered sealed wiring post hole, and the wiring terminal plate is welded in place, sealed wiring post hole, and the sealed wiring post is located on the wiring terminal plate, it is characterized in that: the stiffening plate with perforate is welded in the inboard or the outside in the sealed wiring post hole of frame, and the perforate of stiffening plate is aimed at the sealed wiring post hole of frame.

Optimize structure and be: upper shell has the temp controller hole, and temp controller is installed in the temp controller hole, and a stiffening plate with perforate is welded in the inboard or the outside in the temp controller hole of upper shell, and the perforate of this stiffening plate is aimed at the temp controller hole of upper shell.

Described sealed wiring post hole stiffening plate or temp controller hole stiffening plate are to adopt stamping process to make with ordinary hot rolled steel plate or steel band or with the housing identical materials.

Be compared with the prior art, the utlity model has following characteristics:

1. the utility model adopts the part to add strong method to improve casing rigidity, to satisfy the requirement of higher gas pressure, need not to increase whole hull plate thickness, the economical with materials cost.

2. by housing being installed the method for temp controller, the temperature in the time of can detecting compressor operating in real time, and compressor electric motor is implemented control by control circuit prevents from that Yin Wendu is too high compressor housing or component are damaged.

3. the utility model can adapt to the compressor of different displacements, and versatility is good.

4. manufacturing and the detection to housing is very easy, and the compressor housing of making different size need not be selected the steel plate of different-thickness, manufacturing efficiency height, low cost of manufacture for use.

Description of drawings

Fig. 1 is existing scroll compressor structural representation;

Fig. 2 is sealing access node columniation structure schematic representation;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is an I portion enlarged view among Fig. 3;

Fig. 5 is that D among Fig. 4 is to partial view;

Fig. 6 is another structural representation of Fig. 4.

Fig. 7 is for using scroll compressor structural representation of the present utility model;

Fig. 8 is the compressor housing structure schematic representation with temp controller;

Fig. 9 is a J portion enlarged view among Fig. 8.

Among the figure: 11-upper shell, 12-frame, 13-lower shell body, 2-static vortex disk, 3-movable orbiting scroll, 4-supporting base, 5-bearing, 6-stator, 7-rotor, 8-bent axle, 14-sucking pipe, 15-outlet pipe, 16-sealed wiring post, 17-wiring terminal plate, 18-stiffening plate The 19-vitreous humor, 20-temp controller, 21-stiffening plate

Embodiment

Embodiment one

With reference to figure 3, Fig. 4 and Fig. 5, the local structure that strengthens compressive strength of a kind of compressor housing that the utility model proposes, compressor housing is by frame 12, upper shell 11 and lower shell body 13 be combined intos, upper shell 11 is connected with sucking pipe 14, frame 12 is connected with outlet pipe 15 and sealed wiring post 16, frame 12 is offered the wiring terminal hole, sealed wiring post 16 is located on the wiring terminal plate 17, wiring terminal plate 17 is welded in the place, wiring terminal hole of frame 12, area is greater than the stiffening plate 18 in wiring terminal hole, the wiring terminal hole that its middle part has diameter and a frame 12 quite or big slightly perforate, stiffening plate 18 is welded in the inboard, place, wiring terminal hole of frame 12, and its perforate is aimed at the wiring terminal hole of housing 12.Such structure just can be carried out the part to the place, wiring terminal hole of frame and be strengthened, and improves the ability of bearing pressure of casing part integral body.

Fig. 7 is for using scroll compressor structural representation of the present utility model, housing (being made of frame 12, upper shell 11 and lower shell body 13) internal upper part is installed with supporting base 4, the top of supporting base 4 connects static vortex disk 2, movable orbiting scroll 3 places between supporting base 4 and the static vortex disk 2 and makes the formation compression chamber, supporting base 4 middle parts have axis hole and bearing 5 thereunder are installed, bent axle 8 is set on the bearing 5 its eccentric part and passes axis hole and drive with movable orbiting scroll 3 and be connected, the stator 6 of motor and rotor 7 place the below of supporting base 4, and the axis hole of rotor 7 is inserted in bent axle 8.

Embodiment two, and the structure of present embodiment and embodiment's one difference is the outside, place, wiring terminal hole (as Fig. 6) that stiffening plate 18 is welded in frame 12, and other structure and embodiment one are identical.

Embodiment three, with reference to figure 8 and Fig. 9, the structure of present embodiment and embodiment's one difference is: open a temp controller hole at upper shell 11, one temp controller 20 is installed in the temp controller hole, one stiffening plate 21 with perforate is welded in the inboard or the outside in the temp controller hole of upper shell 11, and the perforate of this stiffening plate 21 is aimed at the temp controller hole of upper shell 11.Other structure and embodiment one or two are identical.

During use, temp controller is connected with control circuit, the temperature in the time of can detecting compressor operating in real time, and compressor electric motor is implemented control by control circuit prevents from that Yin Wendu is too high compressor housing or component are damaged.

Can the utility model be applied to dissimilar compressors with reference to said structure, not enumerate one by one here.

Claims

1. compressor housing, by frame (12), upper shell (11) and lower shell body (13) be combined into, upper shell (11) is connected with sucking pipe (14), frame (12) is connected with outlet pipe (15) and sealed wiring post (16), frame is offered sealed wiring post hole, wiring terminal plate (17) is welded in place, sealed wiring post hole, sealed wiring post (16) is located on the wiring terminal plate (17), it is characterized in that: the stiffening plate (18) with perforate is welded in the inboard or the outside in the sealed wiring post hole of frame (12), and the perforate of stiffening plate (18) is aimed at the sealed wiring post hole of frame.

2. compressor housing as claimed in claim 1, it is characterized in that: upper shell (11) has the temp controller hole, temp controller (20) is installed in the temp controller hole, one stiffening plate (21) with perforate is welded in the inboard or the outside in the temp controller hole of upper shell (11), and the perforate of stiffening plate (21) is aimed at the temp controller hole of upper shell.

3. compressor housing as claimed in claim 1 or 2 is characterized in that: described stiffening plate (18) is to adopt stamping process to make with ordinary hot rolled steel plate or steel band or with the housing identical materials.

4. compressor housing as claimed in claim 2 is characterized in that: described stiffening plate (21) is to adopt stamping process to make with ordinary hot rolled steel plate or steel band or with the housing identical materials.