Compressor cylinder body

Abstract

The invention relates to a compressor cylinder body, one end of the cylinder body is connected with a motor end cover of a compressor, the other end of the cylinder body is connected with an air cylinder end cover of the compressor, a runner mechanism formed by a plurality of through holes or grooves is arranged on the outer wall between the two ends of the cylinder body, and the runner mechanism is arranged on the outer wall between the two ends of the cylinder body. A welding face is arranged on at least part of the outer wall of the cylinder body and used for being in brazed connection with at least one element with a heat exchange function. The functionality of a single cylinder body can be enhanced through the cylinder body integrated runner mechanism, and the outer wall is provided with the welding surface, so that brazing connection with corresponding elements is facilitated, and the cylinder body has relatively high functionality and relatively small size.

Description

TECHNICAL FIELD

[0001] The present application relates to a heat management system, in particular to a compressor cylinder. BACKGROUND

[0002] The description in this part only provides background information related to the present application disclosure, and does not constitute prior art.

[0003] In the existing vehicle-mounted heat management system, the coolant in the evaporator or condenser can be coupled with the cooling liquid to realize heat exchange by introducing the cooling liquid into the corresponding functional element, so that the external heat exchange is mainly realized by the cooling liquid, the length of the coolant pipeline can be reduced, and the safety is high.

[0004] The cylinder structure of the existing compressor is generally only used to play a structural support and protect and seal the internal components of the cylinder, and in the heat management system which needs to be connected in series with the condenser, evaporator and other heat exchange functional elements, the cylinder structure is relatively single in function, which leads to the large volume of the overall heat management integrated module.

[0005] It should be noted that the above introduction to the technical background is only to facilitate the clear and complete description of the technical scheme of the present application, and to facilitate the understanding of those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art only because it is described in the background section of the present application. SUMMARY

[0006] The purpose of the present application is to provide a compressor cylinder which can enhance the functionality of a single cylinder through the cylinder integrated flow channel mechanism, and the outer wall is covered with a welding surface to facilitate brazing connection between the corresponding elements, so that the cylinder has strong functionality and small volume.

[0007] In order to achieve the above purpose, the present application discloses a compressor cylinder, one end of the cylinder is connected with the motor end cover of the compressor, the other end of the cylinder is connected with the cylinder end cover of the compressor, wherein a welding surface is arranged on the outer wall between the two ends of the cylinder, and the welding surface is used for brazing connection with at least one element having heat exchange function.

[0008] As a further description of the above technical scheme, the welding surface is welded and connected through the composite layer, welding sheet or welding paste arranged on the element.

[0009] As a further description of the above technical scheme, the welding surface is arranged around the opening of the flow channel mechanism connected with the outside of the cylinder.

[0010] As a further description of the above technical scheme, the composite layer is arranged as an aluminum brazing agent.

[0011] As a further description of the above technical solution, the thickness of the composite layer is set between 0.05-0.3mm.

[0012] As a further description of the above technical solution, a condenser is welded on the top surface of the cylinder body, the flow channel mechanism comprises a first condensing channel and a second condensing channel for flowing cooling liquid; one end of the first condensing channel is connected with the condensing water inlet, the other end of the first condensing channel is connected with the first condensing external connector; one end of the second condensing channel is connected with the condensing water outlet, the other end of the second condensing channel is connected with the second condensing external connector.

[0013] As a further description of the above technical solution, an evaporator is welded on the top surface of the cylinder body, the flow channel mechanism comprises a first evaporating channel and a second evaporating channel for flowing cooling liquid; one end of the first evaporating channel is connected with the evaporating water inlet, the other end of the first evaporating channel is connected with the first evaporating external connector; one end of the second evaporating channel is connected with the evaporating water outlet, the other end of the second evaporating channel is connected with the second evaporating external connector; wherein, the evaporator and the evaporator are arranged in parallel on the top of the cylinder body.

[0014] As a further description of the above technical solution, a special-shaped cavity is formed in the side wall of the cylinder body, the special-shaped cavity is connected with the flow channel mechanism, and a first sealing plate is arranged outside the special-shaped cavity through a welding cover to form a closed container mechanism.

[0015] As a further description of the above technical solution, a first valve seat is welded on the side wall of the cylinder body away from the first sealing plate, a first expansion valve and a first on-off valve are installed on the first valve seat, and the first expansion valve and the first on-off valve pass through the first sealing plate, the first special-shaped cavity and are connected with the flow channel mechanism; a second sealing plate is welded on the side wall of the cylinder body away from the first sealing plate, a second valve seat is welded on the side wall of the cylinder body away from the second sealing plate, a second on-off valve is installed in the second valve seat, and the second on-off valve passes through the second sealing plate and is connected with the flow channel mechanism; a second expansion valve is also installed on the side wall of the cylinder body, and the second expansion valve is connected with the flow channel mechanism.

[0016] As a further description of the above technical solution, the flow channel mechanism comprises a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel, a sixth flow channel, a seventh flow channel and an eighth flow channel for flowing refrigerant, wherein,

[0017] The exhaust port of the compressor is connected with the condensing inlet of the condenser through the first flow channel;

[0018] The condensing outlet of the condenser is connected with the liquid storage inlet of the container mechanism through a second flow channel;

[0019] The liquid storage outlet of the container mechanism is connected with the first expansion valve through a third flow channel;

[0020] The liquid storage outlet of the container mechanism is connected with the first switch valve through a fourth flow channel;

[0021] The first switch valve is connected with the second expansion valve through a fifth flow channel;

[0022] The second expansion valve is connected with the evaporation inlet of the evaporator through a sixth flow channel;

[0023] The evaporation outlet of the evaporator is connected with the suction port of the compressor through a seventh flow channel;

[0024] The second switch valve is connected with the suction port of the compressor through an eighth flow channel.

[0025] By means of the above technical solutions, the present application has the following beneficial effects:

[0026] The compressor cylinder of the present application can enhance the functionality of a single cylinder through the cylinder integrated flow channel mechanism, and the outer wall is provided with a welding surface, facilitating the brazing connection between the corresponding elements, so that the cylinder has strong functionality and small volume. The corresponding elements such as the condenser and the evaporator can be fixed on the cylinder through the hot melt composite layer and welding, and the cylinder integrated flow channel mechanism is used to realize the interconnection, so that the original part of the pipeline function is completely integrated in the cylinder, the sealing is better, and the functionality of the cylinder is enhanced.

[0027] For a further understanding of the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, the drawings provided are only used for reference and illustration, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 is a welding surface schematic diagram of a compressor cylinder provided by the present application;

[0030] Figures 2-4is an explosion schematic diagram of a heat management system to which a compressor cylinder body provided by an embodiment of the present specification belongs;

[0031] Figure 5 is a three-dimensional schematic diagram of a heat management system to which a compressor cylinder body provided by an embodiment of the present specification belongs;

[0032] Figures 6-8 is a schematic diagram of a compressor cylinder body provided by an embodiment of the present specification;

[0033] In the figure:

[0034] 1, cylinder body; 11, flow channel mechanism; 111, first flow channel; 112, second flow channel; 113, third flow channel; 114, fourth flow channel; 115, fifth flow channel; 116, sixth flow channel; 117, seventh flow channel; 118, eighth flow channel; 12, first condensation passage; 13, second condensation passage; 14, first evaporation passage; 15, second evaporation passage; 16, exhaust port; 17, suction port; 18, welding surface;

[0035] 2, condenser; 21, condenser water inlet; 22, condenser water outlet; 23, condenser inlet; 24, condenser outlet; 25, first condenser external connector; 26, second condenser external connector;

[0036] 3, evaporator; 31, evaporator water inlet; 32, evaporator water outlet; 33, evaporator inlet; 34, evaporator outlet; 35, first evaporator external connector; 36, second evaporator external connector;

[0037] 4, container mechanism; 41, special-shaped cavity; 411, reinforcing rib; 42, first sealing plate; 43, liquid storage inlet;

[0038] 5, first valve seat; 51, first expansion valve; 52, first on-off valve;

[0039] 6, second valve seat; 61, second on-off valve; 62, second sealing plate;

[0040] 7, second expansion valve.

[0041] 8, motor end cover;

[0042] 9, cylinder end cover;

[0043] Figure 1 The medium gray area represents a composite layer covering the welding surface. DETAILED DESCRIPTION

[0044] In order to make the technical solutions in the specification better understood by the person skilled in the art, the technical solutions in the specification will be clearly and completely described below in combination with the drawings in the specification. Obviously, the described embodiments are only a part of the embodiments of the specification, rather than all the embodiments. Based on the embodiments in the specification, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the specification.

[0045] The following is to illustrate the embodiments of the present application by specific embodiments, and the person skilled in the art can understand the advantages and effects of the present application from the disclosure of the specification. The present application can be implemented or applied by other different specific embodiments, and the details in the specification can be modified and changed in various ways based on different views and applications without departing from the concept of the present application. In addition, the drawings of the present application are only simple schematic illustrations, not the depiction according to the actual size, and the prior declaration. The following embodiments will further illustrate the related technical content of the present application in detail, but the disclosed content is not used to limit the protection scope of the present application.

[0046] It should be understood that although the terms such as "first", "second", "third" and the like may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items.

[0047] Please refer to Figures 1-4 A compressor cylinder body of the present embodiment, one end of the cylinder body 1 is connected with the motor end cover of the compressor, the other end of the cylinder body 1 is connected with the cylinder end cover 9 of the compressor, wherein the outer wall between the two ends of the cylinder body 1 has a flow channel mechanism 11 formed by a plurality of through holes or grooves, at least part of the outer wall of the cylinder body 1 is provided with a welding surface 18, the welding surface 18 is used for brazing connection with at least one element having heat exchange function. The welding surface 18 is welded and connected by the composite layer, welding sheet or welding paste provided on the element.

[0048] The welding surface 18 is arranged around the opening of the flow channel mechanism 11 connected with the outside of the cylinder body 1. Figure 1 The medium gray area can represent the range of the welding surface 18, and in the present application, the composite layer, welding sheet or welding paste provided directly on the element can be used for welding connection by hot melting and welding 19 according to different welding scenes.

[0049] In the above scheme, the functionality of a single cylinder 1 can be enhanced by integrating the flow channel mechanism 11 in the cylinder 1, and the outer wall is provided with a welding surface 18 to facilitate brazing connection between the corresponding elements, so that the cylinder 1 has strong functionality and small size. The corresponding elements such as the condenser 2 and the evaporator 3 can be fixed on the cylinder 1 by means of hot melt composite layer and welding, and the flow channel mechanism 11 integrated in the cylinder 1 is used to realize the interconnection, so that the original part of the pipeline function is completely integrated in the cylinder 1, the sealing is better, and the functionality of the cylinder 1 is enhanced.

[0050] The composite layer for brazing described above is an aluminum brazing agent, which can be 1045 aluminum alloy or 4045 aluminum alloy, and the thickness of the material is set to be between 0.05-0.3mm, which can achieve a good balance between cost and welding strength in the welding strength support of general cylinder structure.

[0051] In the above structure, the welding surface 18 can be annularly surrounded and circumferentially covered around the corresponding opening of the flow channel mechanism 11, so that the opening is completely sealed after welding.

[0052] Based on the above cylinder 1 structure, the connection can be achieved by the following welding method.

[0053] First, the welding material is made in the form of a composite layer, a welding sheet or a welding paste on the outer wall of the condenser 2, the evaporator 3, the first sealing plate 42, the second sealing plate 62 for connecting with the welding surface 18 of the cylinder 1 of the compressor; the brazing operation is performed, the welding material is heated and cooled, the welding material is hot-melted and solidified to connect between the cylinder 1 and the condenser 2, the evaporator 3, the first sealing plate 42 and the second sealing plate 62, so as to complete the connection of the cylinder 1 with the condenser 2, the evaporator 3, the first sealing plate 42 and the second sealing plate 62. Before the step of "heating and cooling the welding material", the position of the cylinder 1 is adjusted, and the evaporator 3 and the condenser 2 are arranged at the top of the cylinder 1, because the evaporator 3 and the condenser 2 themselves have a large mass and volume, and the cylinder 1 of the compressor is used as the basis for bearing and stress, the evaporator 3 and the condenser 2 are placed at the top of the cylinder 1 to pre-adjust the positioning, so that the overall system is more stable during the welding process. Based on the above integrated welding, the welding surface in this embodiment has sealing and fixing functions, the leakage of the entire refrigerant system is less than 0.2g / y, the integrated pipeline significantly reduces the volume of the refrigerant system, and is especially suitable for R290 system.

[0054] The following is an embodiment of the use of the cylinder 1 in the specific heat management integrated system.

[0055] The heat management system comprises a compressor, the compressor comprises a cylinder body 1, a motor end cover 8 and a cylinder end cover 9, one end of the cylinder body 1 is connected with the motor end cover, and the other end of the cylinder body 1 is connected with the cylinder end cover; the outer wall between the two ends of the cylinder body 1 is provided with a flow channel mechanism 11 formed by a plurality of through holes or grooves;

[0056] At least one element having a heat exchange function is welded on the cylinder body 1, and the element is connected with the flow channel mechanism 11.

[0057] Based on the structure in the application, the flow channel mechanism 11 can be integrally formed as a part of the cylinder body 1 in the design stage of the cylinder body 1 production, so that the original external pipeline of the cylinder body 1 can be arranged in the cylinder body 1, the integration degree of the system is improved, and the flow channel mechanism 11 is integrally formed as a part of the cylinder body 1, which avoids the problem of fluid gas leakage that needs to be considered in more plug-in cases, and realizes complete sealing of the flow channel.

[0058] In one embodiment, the element having a heat exchange function can be a condenser 2 or an evaporator 3, and in the processing process, due to the design without the plug-in pipeline, the condenser 2 or the evaporator 3 can be directly connected with the cylinder body 1 in the form of welding, for example, a composite layer for brazing can be directly processed on the outer wall of the cylinder body 1 in the processing stage, and the composite layer is heated and melted during welding to realize rapid welding connection, so that the corresponding interface of the condenser 2 or the evaporator 3 is directly connected with the flow channel mechanism 11, and the integration degree and sealing performance are very high.

[0059] That is, in the application, the corresponding element having a heat exchange function is directly welded and connected on the cylinder body 1 of the compressor, and is directly connected through the flow channel integrally formed by the cylinder body 1, which is easy to install, small in size and high in sealing performance. In the production stage, most of the pipelines for circulating refrigerant or water cooling liquid are directly integrated in the flow channel mechanism 11 formed by the cylinder body 1, so that the plug-in mode of the whole compressor cylinder is more simple, and the corresponding elements can be directly connected at the pipeline interface position through welding, the sealing performance is significantly higher than that of plug-in, and the safety of the whole system is improved.

[0060] In one of the embodiments, one of the elements with heat exchange function can be set as the condenser 2, which is welded on the top surface of the cylinder body 1, and the flow channel mechanism 11 includes a first condensing channel 12 and a second condensing channel 13 for flowing cooling liquid; one end of the first condensing channel 12 is connected with the condensing water inlet 21, and the other end of the first condensing channel 12 is connected with the first condensing external connector 25; one end of the second condensing channel 13 is connected with the condensing water outlet 22, and the other end of the second condensing channel 13 is connected with the second condensing external connector 26. Specifically, the first condensing channel 12 can be arranged at the edge position of the cylinder body 1, so that the first condensing channel 12 presents an L-shaped corner, has the shortest flow channel distance, and avoids that the heat change of the condensing liquid is too large, and meanwhile, the first condensing external connector 25 is arranged at the position facing the outside of the cylinder body 1, which is convenient for the installation of the external pipeline. The combination principle of the second condensing channel 13 and the second condensing external connector 26 is similar, and they are arranged at the other ends spaced in the horizontal direction, which can be adjusted according to the structure of the rectangular condenser 2.

[0061] Similarly, one of the elements with heat exchange function is set as the evaporator 3, which is welded on the top surface of the cylinder body 1, and the flow channel mechanism 11 includes a first evaporating channel 14 and a second evaporating channel 15 for flowing cooling liquid; one end of the first evaporating channel 14 is connected with the evaporating water inlet 31, and the other end of the first evaporating channel 14 is connected with the first evaporating external connector 35; one end of the second evaporating channel 15 is connected with the evaporating water outlet 32, and the other end of the second evaporating channel 15 is connected with the second evaporating external connector 36; wherein, the evaporator 3 is arranged in parallel with the evaporator 3 on the top of the cylinder body 1, that is, in this embodiment, the two rectangular body structures of the evaporator 3 and the evaporator 3, which have similar volume and weight, are arranged in parallel above the cylinder body 1, and as far as possible, they are laid on the top of the cylinder body 1 along the projection surface, which can make full use of the cylinder body 1 to bear the weight, and the layout is more stable and compact. It is worth noting that the first evaporating external connector 35 and the second evaporating external connector 36 are also arranged on the same surface of the cylinder body 1, but considering that the layout positions of the evaporating inlet 33 and the evaporating outlet 34 of the evaporator 3 are different, the gap can be adjusted flexibly, and the distance between the first evaporating external connector 35 and the second evaporating external connector 36 in this application is closer than that between the first condensing external connector 25 and the second condensing external connector 26.

[0062] Considering that the actual condenser 2 or evaporator 3 is provided by the corresponding supplier, which may have requirements for the installation direction, therefore, in another embodiment, the elements such as the condenser 2 or the evaporator 3 can not be limited to be installed on the top surface of the cylinder body 1, for example, as shown in the embodiment, Figure 8 the condenser 2 can be installed on the top surface of the cylinder body 1, and the evaporator 3 can be installed on the side wall of the cylinder body 1 away from the condenser 2. In this embodiment, the flow channel mechanism 11 is matched with the position of the evaporator 3.

[0063] In the present application, the compressor cylinder further comprises a first sealing plate 42, a special-shaped cavity 41 is formed in a side wall of the cylinder 1, the special-shaped cavity 41 is connected with the flow channel mechanism 11, and the first sealing plate 42 is welded outside the special-shaped cavity 41 to form a closed container mechanism 4. Specifically, the cylinder 1 forms a large recessed cavity-shaped special-shaped cavity 41 structure on a side wall in the vertical direction between the two ends, the main part of the cavity is composed of the cylinder 1, and the special-shaped cavity 41 is sealed by the first sealing plate 42 to realize the complete container mechanism 4 structure. Based on the above scheme, the original container mechanism 4 structure which needs to be externally installed is integrated as part of the cylinder 1, the upper part of the cylinder 1 can be used to install the condenser 2 or the evaporator 3, or the overall structure is more compact. The container mechanism 4 can also be connected with the flow channel mechanism 11 of the cylinder 1 through multiple channels to realize the connection of the container mechanism 4 into the compressor cylinder. The above-mentioned container mechanism 4 can be used as a liquid storage tank or a gas-liquid separator, and can be arranged according to different functions.

[0064] The first sealing plate 42 for welding mentioned above can be provided as a vertical surface, and before welding, the cylinder 1 is attached in the horizontal direction to completely close the special-shaped cavity 41 by the first sealing plate 42.

[0065] In order to facilitate the welding of the first sealing plate 42 and provide sufficient support for the first sealing plate 42, a reinforcing rib 411 is arranged in the special-shaped cavity 41, one end of the reinforcing rib 411 is connected with the bottom surface of the special-shaped cavity 41, and the other end of the reinforcing rib 411 is welded and connected with the surface of the first sealing plate 42 facing the special-shaped cavity 41. The number of reinforcing ribs 411 is set to be multiple, multiple reinforcing ribs 411 are arranged in the special-shaped cavity 41 at intervals, and the thickness of each reinforcing rib 411 is equal. That is, the end surface of the reinforcing rib 411 is directly welded with the first sealing plate 42, so that the first sealing plate 42 is uniformly and stably supported, has higher structural strength, and at the same time, different forms of reinforcing rib 411 layout can be arranged to form corresponding flow channel design in the container mechanism 4. When the container mechanism 41 is provided with a liquid storage tank, the container flow channel guides the outlet of the liquid storage tank to the bottom of the container mechanism 4, and when the gas-liquid separator is provided, the container flow channel guides the outlet of the gas-liquid separator to the top of the container mechanism 4. At the same time, when the container mechanism 4 includes a gas-liquid separator, the gas-liquid separator further includes an oil return hole for connecting the bottom of the container mechanism 41 with the suction cavity of the compressor.

[0066] Further, the compressor cylinder further comprises a first valve seat 5, a first expansion valve 51 and a first switching valve 52, the first valve seat 5 is welded on the side wall of the first sealing plate 42 away from the cylinder 1, the first expansion valve 51 and the first switching valve 52 are installed on the first valve seat 5, and the first expansion valve 51 and the first switching valve 52 pass through the first sealing plate 42, the first special-shaped cavity 41 and are connected with the flow channel mechanism 11. The first valve seat 5 serves as an adapter seat for installing the first expansion valve 51 and the first switching valve 52, and plays a role in fixing the installation of the first expansion valve 51 and the first switching valve 52, and the inside of the first valve seat 5 is provided with a corresponding flow channel for conducting the first expansion valve 51 and the first switching valve 52 and the flow channel mechanism 11, and the first sealing plate 42 is also provided with a through hole corresponding to the flow channel.

[0067] Similarly, the compressor cylinder further comprises a second sealing plate 62, a second valve seat 6 and a second switching valve 61, the second sealing plate 62 is welded on the side wall of the cylinder 1 away from the first sealing plate 42, the second valve seat 6 is welded on the side wall of the second sealing plate 62 away from the cylinder 1, the second switching valve 61 is installed on the second valve seat 6, and the second switching valve 61 passes through the second sealing plate 62 and is connected with the flow channel mechanism 11. The compressor cylinder further comprises a second expansion valve 7, the second expansion valve 7 is installed on the side wall of the cylinder 1, and the second expansion valve 7 is connected with the flow channel mechanism 11. The second switching valve 61 is installed on the other end of the cylinder 1 away from the first expansion valve 51 and the first switching valve 52 by means of the second valve seat 6, and the second expansion valve 7 is also installed on the other end of the cylinder 1 away from the first expansion valve 51 and the first switching valve 52, which can realize full use of the outer peripheral space of the cylinder 1. At this time, the two ends of the cylinder 1 are provided with corresponding components of the compressor such as the motor end cover 8 and the cylinder end cover 9, and the top, left and right sides of the cylinder 1 are all provided with corresponding elements or devices, and the overall compressor cylinder has high integration.

[0068] Based on the above structure and corresponding elements, devices, through the flow channel mechanism 11, it can be in accordance with the specified flow direction of the string, the refrigerant, cooling liquid can be in accordance with the preset flow channel flow. Specifically, the flow channel mechanism 11 includes a first flow channel 111 for the flow of refrigerant, the second flow channel 112, the third flow channel 113, the fourth flow channel 114, the fifth flow channel 115, the sixth flow channel 116, the seventh flow channel 117, the eighth flow channel 118, wherein the compressor exhaust port 16 through the first flow channel 111 and the condenser 2 condensing inlet 23 is connected; the condenser 2 condensing outlet 24 through the second flow channel 112 and the container mechanism 4 liquid storage inlet 43 is connected; the container mechanism 4 liquid storage outlet through the third flow channel 113 and the first expansion valve 51 is connected; the container mechanism 4 liquid storage outlet through the fourth flow channel 114 and the first switch valve 52 is connected; the first switch valve 52 through the fifth flow channel 115 and the second expansion valve 7 is connected; the second expansion valve 7 through the sixth flow channel 116 and the evaporator 3 evaporating inlet 33 is connected; the evaporator 3 evaporating outlet 34 through the seventh flow channel 117 and the compressor suction port 17 is connected; the second switch valve 61 through the eighth flow channel 118 and the compressor suction port 17 is connected.

[0069] In one embodiment, in the above-mentioned flow channel system in series, the compressor exhaust port 16 can output high temperature and high pressure refrigerant to the condenser 2, the condenser 2 is coupled with the water cooling liquid and outputs the water cooling liquid for heat exchange, and then the condenser 2 can output the refrigerant to the container mechanism 4, the container mechanism 4 mainly plays a role of buffering and gas-liquid separation of high pressure refrigerant, and then the container mechanism 4 can output the refrigerant to the first expansion valve 51 for throttling, and output externally, or the container mechanism 4 can output the refrigerant to the first switch valve 52, which can transport the refrigerant to the second expansion valve 7 after the first switch valve 52, the second expansion valve 7 can throttle the refrigerant and output the low temperature and low pressure refrigerant to the evaporator 3, the condenser 2 is coupled with the water cooling liquid and outputs the water cooling liquid for heat exchange, and then the condenser 2 can output the refrigerant to the suction port 17 of the compressor, completing the internal refrigerant circulation.

[0070] In the above-mentioned communication structure, in addition to the internal circulation, the first expansion valve 51 throttles the corresponding received refrigerant and guides it to the outdoor heat exchanger of the vehicle front compartment for heat exchange, and the outdoor heat exchanger of the vehicle front compartment introduces the refrigerant from the second switch valve 61 into the compressor cylinder of the embodiment, such as the second switch valve 61, which can input the refrigerant input by the external system into the suction port 17 of the compressor through the eighth flow channel 118.

[0071] Of course, in addition to the above-mentioned flow channel mechanism 11, the number, position of the flow channel can also be adjusted or increased or decreased according to the actual pipeline layout needs and the supplement of corresponding elements.

[0072] The above disclosed are only the preferred and feasible embodiments of the present application, and do not limit the patent application scope of the present application, so any equivalent technical changes made according to the content of the present application and drawings are included in the patent application scope of the present application.

[0073] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0074] Although the present application is described through embodiments, those skilled in the art know that there are many modifications and changes of the present application without departing from the spirit of the present application, and it is hoped that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A compressor cylinder, wherein one end of the cylinder is connected to the motor end cover of the compressor, and the other end of the cylinder is connected to the cylinder end cover of the compressor, characterized in that: The outer wall between the two ends of the cylinder body has a flow channel mechanism formed by multiple through holes or grooves, and at least part of the outer wall of the cylinder body is provided with a welding surface, which is used for brazing connection with at least one element with heat exchange function.

2. The compressor cylinder according to claim 1, characterized in that: The welding surface is connected by welding through the composite layer, welding sheet or welding paste provided on the component.

3. The compressor cylinder according to claim 2, characterized in that: The welding surface is arranged around an opening where the flow channel mechanism communicates with the outside of the cylinder body.

4. The compressor cylinder according to claim 2, characterized in that: The composite layer is provided as an aluminum brazing flux.

5. The compressor cylinder according to claim 4, characterized in that: The thickness of the composite layer is set between 0.05-0.3 mm.

6. The compressor cylinder according to claim 1, characterized in that: A condenser is welded on the top surface of the cylinder body, and the flow channel mechanism includes a first condensation channel and a second condensation channel for circulating the coolant; one end of the first condensation channel is connected to the condensation water inlet, and the other end of the first condensation channel is connected to the first condensation external joint; one end of the second condensation channel is connected to the condensation water outlet, and the other end of the second condensation channel is connected to the second condensation external joint.

7. The compressor cylinder according to claim 6, characterized in that: An evaporator is welded on the top surface of the cylinder body, and the flow channel mechanism includes a first evaporation channel and a second evaporation channel for circulating the coolant; one end of the first evaporation channel is connected to the evaporation water inlet, and the other end of the first evaporation channel is connected to the first evaporation external joint; one end of the second evaporation channel is connected to the evaporation water outlet, and the other end of the second evaporation channel is connected to the second evaporation external joint; wherein, the evaporator and the evaporator are arranged in parallel on the top of the cylinder body.

8. The compressor cylinder according to claim 7, characterized in that: One side wall of the cylinder body is concave to form a special-shaped cavity, the special-shaped cavity is connected to the flow channel mechanism, and a first sealing plate is welded to the outside of the special-shaped cavity so that the special-shaped cavity forms a closed container mechanism.

9. The compressor cylinder according to claim 9, characterized in that: A first valve seat is welded on a side wall of the first sealing plate facing away from the cylinder body, and a first expansion valve and a first switch valve are installed on the first valve seat, and the first expansion valve and the first switch valve pass through the first sealing plate and the first special-shaped cavity and are connected to the flow channel mechanism; a second sealing plate is welded on a side wall of the cylinder body facing away from the first sealing plate, and a second valve seat is welded on a side wall of the second sealing plate facing away from the cylinder body, and a second switch valve is installed in the second valve seat, and the second switch valve passes through the second sealing plate and is connected to the flow channel mechanism; a second expansion valve is also installed on one side wall of the cylinder body, and the second expansion valve is connected to the flow channel mechanism.

10. The compressor cylinder according to claim 9, characterized in that: The flow channel mechanism includes a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel, a sixth flow channel, a seventh flow channel, and an eighth flow channel for circulating the refrigerant, wherein: The exhaust port of the compressor is connected to the condensation inlet of the condenser through the first flow channel; The condensation outlet of the condenser is connected to the liquid storage inlet of the container mechanism through a second flow channel; The liquid storage outlet of the container mechanism is connected to the first expansion valve through a third flow channel; The liquid storage outlet of the container mechanism is connected to the first switch valve through a fourth flow channel; The first switch valve is connected to the second expansion valve via a fifth flow channel; The second expansion valve is connected to the evaporation inlet of the evaporator through a sixth flow channel; The evaporation outlet of the evaporator is connected to the air intake of the compressor through a seventh flow channel; The second switch valve is connected to the suction port of the compressor through an eighth flow channel.

Images