Compressor shell, compressor assembly and manufacturing method

Abstract

The invention provides a compressor shell, a compressor assembly and a manufacturing method, the compressor shell is used for containing a motor and a pump body of a compressor, and the compressor shell comprises a compressor upper shell, a compressor main shell and a compressor lower shell; the compressor upper shell, the compressor main shell and the compressor lower shell are made of plastic materials, the compressor upper shell is connected with the top end of the compressor main shell, and the compressor lower shell is connected with the bottom end of the compressor main shell. The problems that a metal compressor shell is large in weight, high in manufacturing and transportation cost, complex in process and serious in environmental pollution, and paint spraying is needed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular, to a compressor housing, a compressor assembly, and a manufacturing method. Background Art

[0002] At present, the housings of traditional air-conditioning compressors are mostly made of metal materials and manufactured by processes such as stamping and welding. The pipelines of the compressors are also made of metal materials and connected to the compressor housing by welding processes, resulting in a large weight and relatively high manufacturing and transportation costs. Moreover, the metal compressor housing needs to be further processed with anti-corrosion treatments such as painting, which has complex processes and causes serious environmental pollution. Summary of the Invention

[0003] The problem solved by the present invention is that the metal compressor housing has a large weight, relatively high manufacturing and transportation costs, requires painting, has complex processes, and causes serious environmental pollution.

[0004] To solve the above problems, the present invention provides a compressor housing for accommodating the motor and pump body of the compressor. The compressor housing includes an upper compressor housing, a main compressor housing, and a lower compressor housing. The upper compressor housing, the main compressor housing, and the lower compressor housing are made of plastic materials. The upper compressor housing is connected to the top end of the main compressor housing, and the lower compressor housing is connected to the bottom end of the main compressor housing.

[0005] The technical effects achieved after adopting this technical solution are as follows: The compressor housing made of plastic materials can effectively reduce the weight of the compressor housing, reduce transportation costs and material costs, and is also convenient for processing. The injection molding process can effectively improve processing efficiency, have a greater production capacity, and reduce manufacturing costs. Moreover, the plastic itself can be anti-corrosive, and no anti-corrosion processes such as painting are required on the outside after molding. Therefore, the process is simpler, and painting pollution to the environment is also avoided.

[0006] Furthermore, the compressor housing includes at least one welding position and a plurality of prefabricated structures welded through the welding position. The prefabricated structures are injection-molded separately. Among the plurality of prefabricated structures, there are included: a first prefabricated structure having the upper compressor housing, and a second prefabricated structure having the lower compressor housing. The first prefabricated structure and the second prefabricated structure are injection-molded separately and then welded to each other or welded through other prefabricated structures.

[0007] Technical effects achieved after adopting this technical solution: By splitting the compressor housing into multiple prefabricated structures, modular production is realized, the complexity of the injection mold is reduced, the manufacturing flexibility is improved, and it is convenient to replace and combine the upper compressor housing and the lower compressor housing of different specifications to realize compressors with different principles or functions; at the same time, modular production of the compressor housing also facilitates the installation of various internal components such as motors and pump bodies into any prefabricated structure of the compressor housing, and then welding the individual prefabricated structures.

[0008] Furthermore, the main compressor housing includes a first housing and a second housing. The first housing and the upper compressor housing form an integral first prefabricated structure, and the second housing and the lower compressor housing form an integral second prefabricated structure. The first housing and the second housing are welded and connected through the welding position.

[0009] Technical effects achieved after adopting this technical solution: The cylinder body is designed in a split manner and combined with the upper compressor housing and the lower compressor housing respectively. Neither the upper compressor housing nor the lower compressor housing needs to be injection molded separately, which improves production efficiency and reduces the number of welding positions, thereby improving welding efficiency and connection reliability; after the main compressor housing is split, the requirements for the mold size are significantly reduced, facilitating the processing of larger compressor housings; after the upper compressor housing and the lower compressor housing are injection molded separately, it is also convenient for them to be demolded separately; both the first housing and the second housing can be demolded axially along with the upper compressor housing or the lower compressor housing.

[0010] Furthermore, the main compressor housing and the upper compressor housing form an integral first prefabricated structure, and the lower compressor housing is the second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through the welding position.

[0011] Technical effects achieved after adopting this technical solution: The edge of the main compressor housing coincides with the edge of the upper compressor housing axially. Therefore, the main compressor housing and the upper compressor housing can be injection molded together and demolded together. The upper compressor housing does not need to be injection molded separately, reducing the number of injection molding and welding operations, simplifying the assembly process of the compressor housing, and improving production efficiency.

[0012] Furthermore, the upper compressor housing is the first prefabricated structure, and the main compressor housing and the lower compressor housing form an integral second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through the welding position.

[0013] Technical effects achieved after adopting this technical solution: The main compressor housing coincides with the edge of the lower compressor housing axially, so the main compressor housing and the lower compressor housing can be integrally injection-molded and demolded together. The lower compressor housing does not need to be injection-molded separately, reducing the number of injection molding and welding operations, simplifying the assembly process of the compressor housing, and improving production efficiency.

[0014] Further, the upper compressor housing is the first prefabricated structure, and the lower compressor housing is the second prefabricated structure; among the multiple prefabricated structures, there is also a third prefabricated structure, which is the main compressor housing, and the first prefabricated structure, the third prefabricated structure, and the second prefabricated structure are sequentially welded and connected through the welding positions.

[0015] Technical effects achieved after adopting this technical solution: The upper compressor housing, the main compressor housing, and the lower compressor housing are all injection-molded separately, realizing a complete modular design, which is convenient for replacing components according to size requirements. For example, replacing the main compressor housing with different lengths to meet different volume requirements.

[0016] Further, the welding position includes: a first mating structure and a second mating structure, and the first mating structure and the second mating structure are sleeved and mated before being welded and connected.

[0017] Technical effects achieved after adopting this technical solution: The first mating structure and the second mating structure can be installed with limited positions, and play a physical positioning effect before welding the upper compressor housing and the main compressor housing, or before welding the main compressor housing and the lower compressor housing, to avoid welding misalignment; and the sleeved structure can increase the welding contact area and improve the welding strength.

[0018] Further, the compressor housing further includes: positioning feet, the positioning feet are made of plastic, and the positioning feet and the lower compressor housing form an integral second prefabricated structure.

[0019] Technical effects achieved after adopting this technical solution: The positioning feet are used to support the compressor housing and stably install the compressor housing on the vibration damping spring; the use of plastic for the positioning feet further reduces the weight, facilitating transportation, and the positioning feet do not require painting for interface waterproofing and anti-corrosion, simplifying the process flow; the positioning feet and the lower compressor housing are integrally injection-molded, further improving the injection molding efficiency, eliminating the assembly gap between the feet and the housing, and improving the installation stability; and the integrally injection-molded form has no loosening risk compared with bolt fixation, reducing the maintenance cost.

[0020] Further, the compressor housing further includes: positioning feet and an embedded reinforcing plate. The embedded reinforcing plate is made of metal or alloy. The embedded reinforcing plate is embedded in the lower compressor housing, and the positioning feet are welded to the embedded reinforcing plate. Wherein, the embedded reinforcing plate is installed in the mold of the lower compressor housing, and by injecting the lower compressor housing, the embedded reinforcing plate is fitted with the lower compressor housing to form the first prefabricated structure.

[0021] The technical effects achieved after adopting this technical solution: The embedded reinforcing plate is used to improve the strength of the lower compressor housing, improve the load-bearing capacity of the compressor housing and the stability of installation. After injecting the lower compressor housing, the embedded reinforcing plate can be closely fitted with the lower compressor housing to avoid loosening of the connection caused by vibration, so as to stably install the positioning feet on the embedded reinforcing plate.

[0022] Further, the compressor housing further includes: a terminal block insert, a screw insert and / or an air pipe insert. The terminal block insert, the screw insert and / or the air pipe insert are embedded in the upper compressor housing. Wherein, the terminal block insert, the screw insert and / or the air pipe insert are installed in the mold of the upper compressor housing, and by injecting the upper compressor housing, the terminal block insert, the screw insert and / or the air pipe insert are fitted with the upper compressor housing to form the first prefabricated structure.

[0023] The technical effects achieved after adopting this technical solution: The terminal block insert is used to supply power and control the compressor. The screw insert is used to fix the compressor to other components. The air pipe insert is used to convey gas in or out. The form of inserts can stably install the terminal block, screw and air pipe on the upper compressor housing. After injecting the upper compressor housing, the terminal block, screw and air pipe can be closely fitted with the upper compressor housing to achieve the functions of stable wiring, screw installation and air pipe gas conduction. There is no need to fix the terminal block, screw and air pipe subsequently. Injection molding in one piece can make the installation of the terminal block, screw and air pipe more convenient, improve airtightness and protect the integrity of the compressor housing. The compressor housing is made of plastic, which also plays an insulating role for the terminal block insert.

[0024] Further, the compressor housing further includes: a bypass pipeline insert, which is arranged on the side of the main compressor housing and is used to install the bypass pipeline and fix the pump body of the compressor. The bypass pipeline insert is also used to install process pipelines, such as for filling refrigerants such as water or oil, or for refrigerant recovery or connecting external devices such as pressure gauges and temperature sensors to realize the start-stop or cooling capacity control of refrigeration, or connecting a bypass valve to balance the suction and exhaust pressures to prevent reverse rotation or liquid hammer, etc.

[0025] Technical effects achieved after adopting this technical solution: After the injection molding of the main compressor housing and the bypass pipeline inserts is completed, the pump body of the compressor is installed in the main compressor housing and is respectively installed in cooperation with a plurality of bypass pipeline inserts to achieve the positioning and fixation of the pump body.

[0026] Further, the compressor housing includes an embedded mounting plate, the embedded mounting plate is made of metal or alloy, the embedded mounting plate is embedded in the side surface of the main compressor housing, and at least part of the embedded mounting plate and the main compressor housing form the prefabricated structure; wherein, the embedded mounting plate is used to fix the liquid reservoir.

[0027] Technical effects achieved after adopting this technical solution: The embedded mounting plate made of metal or alloy can improve the strength of the position on the compressor housing for connecting the liquid reservoir, and avoid cracking or loosening of the connection position; the embedded mounting plate adopts an embedded structure and can be seamlessly matched with the main compressor housing, and the embedded mounting plate itself does not require subsequent installation and reinforcement steps, and can be integrally formed with the main compressor housing when installed in the mold, improving the assembly efficiency of the embedded mounting plate.

[0028] The present invention provides a compressor assembly, the compressor assembly includes a compressor housing provided in any of the above technical solutions, and further includes: a liquid reservoir and a clamp, the clamp is clamped on the periphery of the liquid reservoir, and the clamp is welded to the embedded mounting plate.

[0029] Technical effects achieved after adopting this technical solution: The clamp is used to fix the liquid reservoir, realizing the quick disassembly and assembly of the liquid reservoir, which is convenient for maintaining the liquid reservoir; the welding connection between the clamp and the embedded mounting plate replaces fasteners such as bolts, avoiding the failure of fasteners caused by vibration and improving the overall reliability of the assembly.

[0030] The present invention provides a manufacturing method for a compressor housing, the manufacturing method is used to manufacture the compressor housing provided in any of the above technical solutions, and the manufacturing method includes: integrally injection molding the first prefabricated structure having the upper compressor housing; integrally injection molding the second prefabricated structure having the lower compressor housing; welding the first prefabricated structure and the second prefabricated structure to each other or welding through other prefabricated structures.

[0031] Technical effects achieved after adopting this technical solution: The compressor housing is made of plastic material, reducing the weight of the compressor housing, reducing transportation costs, efficiently manufacturing the compressor housing, and effectively improving production capacity; moreover, using plastic achieves an anti-corrosion effect, saving the painting process, so the process is simpler and the painting pollution to the environment is also avoided.

[0032] Further, the first prefabricated structure with the compressor upper housing is integrally injection molded, specifically including: at least part of the compressor main housing and the compressor upper housing form the first prefabricated structure and are integrally injection molded; And / or, the second prefabricated structure with the compressor lower housing is integrally injection molded, specifically including: at least part of the compressor main housing and the compressor lower housing form the second prefabricated structure and are integrally injection molded.

[0033] Technical effects achieved by adopting this technical solution: When the compressor main housing and the compressor upper housing or the compressor lower housing are combined and injection molded together, the corresponding processes of separately injection molding and welding the compressor upper housing or the compressor lower housing can be saved, the production efficiency is improved, the welding positions are reduced, making the compressor housing more reliable as a whole, and the appearance is more flat and beautiful.

[0034] Further, the first prefabricated structure with the compressor upper housing is integrally injection molded, specifically including: installing a terminal post insert, a screw insert, and / or an air pipe insert in the mold of the compressor upper housing, and through injection molding of the compressor upper housing, making the terminal post insert, the screw insert, and / or the air pipe insert fit with the compressor upper housing to form the first prefabricated structure.

[0035] Technical effects achieved by adopting this technical solution: Integral injection molding can make the installation of the terminal post, the screw, and the air pipe more convenient, without subsequent fastener or welding processes, the sealing performance of the compressor housing is better, and the installation of the terminal post, the screw, and the air pipe is more stable.

[0036] Further, the second prefabricated structure with the compressor lower housing is integrally injection molded, specifically including: installing an embedded reinforcing plate in the mold of the compressor lower housing, and through injection molding of the compressor lower housing, making the embedded reinforcing plate fit with the compressor lower housing to form the first prefabricated structure, and welding a positioning support foot to the embedded reinforcing plate.

[0037] Technical effects achieved by adopting this technical solution: The embedded reinforcing plate is integrally molded by being embedded in the compressor lower housing, reducing the process of splicing the embedded reinforcing plate. After the embedded reinforcing plate is stably installed, it also enables the positioning support foot to achieve stable support after being fixed.

[0038] In summary, each of the above technical solutions of the present application may have one or more of the following advantages or beneficial effects: i) The compressor housing is made of plastic material, which can effectively reduce the weight of the compressor housing, reduce transportation costs and material costs, and is also convenient for processing. The injection molding process can effectively improve processing efficiency, have a greater production capacity, and reduce manufacturing costs; ii) Plastic itself can be corrosion-resistant, and there is no need to perform anti-corrosion processes such as painting on the outside after molding, so the process is simpler and painting pollution to the environment is also avoided; iii) The compressor housing is split into multiple prefabricated structures to achieve modular production, reduce the complexity of injection molds, and enhance manufacturing flexibility; iv) After the upper compressor housing and the lower compressor housing are separately injection molded, it is also convenient for them to be demolded separately. The main compressor housing or part of the main compressor housing can be demolded axially along with the upper compressor housing or the lower compressor housing, reducing the number of injection molding and welding times, simplifying the assembly process of the compressor housing, and improving production efficiency; v) The first mating structure and the second mating structure can be installed with limited positions, and play a physical positioning effect before welding the upper compressor housing to the main compressor housing or before welding the main compressor housing to the lower compressor housing, avoiding welding misalignment; vi) The embedded reinforcing plate is used to improve the strength of the lower compressor housing, improve the load-bearing capacity of the compressor housing and the stability of installation; after injection molding the lower compressor housing of the compressor, the embedded reinforcing plate can be closely fitted with the lower compressor housing to avoid loosening of the connection caused by vibration, so as to stably install the positioning feet on the embedded reinforcing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 FIG. is a schematic structural diagram of a compressor housing provided by the present invention; Figure 2 FIG. is a schematic structural diagram of another compressor housing provided by the present invention; Figure 3 FIG. is a schematic structural diagram of yet another compressor housing provided by the present invention; Figure 4 is Figure 1 a schematic structural diagram of the upper compressor housing in; Figure 5 is Figure 2 a schematic structural diagram of the positioning feet in; Figure 6 FIG. is a schematic structural diagram of yet another compressor housing provided by the present invention; Figure 7 FIG. is a schematic structural diagram of yet another compressor housing provided by the present invention; Figure 8 is Figure 1 a schematic structural diagram of the terminal insert in; Figure 9 is Figure 1 a schematic structural diagram of another perspective of the terminal insert in; Figure 10 is Figure 2 a schematic structural view of the embedded reinforcing plate in Figure 11 is Figure 2 a schematic structural view of the embedded reinforcing plate from another perspective in Figure 12 is Figure 1 a schematic structural view of the embedded mounting plate in Figure 13 a schematic structural view of a compressor assembly provided by the present invention.

[0040] Description of reference numerals: 100 - compressor housing; 110 - upper compressor housing; 120 - main compressor housing; 121 - first housing; 122 - second housing; 130 - lower compressor housing; 141 - first mating structure; 142 - second mating structure; 151 - positioning feet; 152 - embedded reinforcing plate; 161 - terminal insert; 161a - insert base; 161b - terminal body; 162 - screw insert; 163 - air pipe insert; 163a - sealing sleeve; 163b - air pipe; 171 - embedded mounting plate; 172 - bypass pipeline insert; 200 - compressor assembly; 210 - liquid reservoir; 220 - clamp. Detailed implementation manners

[0041] The purpose of the present invention is to provide a compressor housing, a compressor assembly and a manufacturing method, which are used to achieve the effects of reducing the weight of the compressor housing, reducing transportation and manufacturing costs, improving production efficiency through injection molding, and reducing pollution.

[0042] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0043] Referring to Figures 1-12 , the present invention provides a compressor housing 100. The compressor housing 100 includes a compressor housing and a motor and a pump body disposed in the compressor housing. The compressor housing includes an upper compressor housing 110, a main compressor housing 120 and a lower compressor housing 130. The upper compressor housing 110, the main compressor housing 120 and the lower compressor housing 130 are made of plastic material. The upper compressor housing 110 is connected to the top end of the main compressor housing 120, and the lower compressor housing 130 is connected to the bottom end of the main compressor housing 120.

[0044] In this embodiment, the compressor housing is made of plastic material, which can effectively reduce the weight of the compressor housing, reduce transportation costs and material costs, and is also easy to process. The injection molding process can effectively improve processing efficiency, have greater production capacity, and reduce manufacturing costs. Moreover, plastic itself can resist corrosion, and there is no need to perform anti-corrosion processes such as painting on the outside after molding. Therefore, the process is simpler and it also avoids environmental pollution caused by painting.

[0045] Preferably, compared with components such as the pump body inside it, there are no working conditions of friction in the compressor housing. Therefore, the requirement for wear resistance is not high, and the requirement for thermal deformation of the compressor housing is even lower, and the material selection is more extensive. The processing accuracy requirement for the compressor housing is lower, and the corresponding processing cost is lower. Therefore, the compressor housing can be injection molded with materials such as glass fiber reinforced nylon, carbon fiber composite material, PEEK or BMC, so that it has high mechanical strength and the effects of antioxidant, high temperature resistance and corrosion resistance.

[0046] It should be noted that the main compressor housing 120 is the cylindrical part of the compressor housing.

[0047] In a specific embodiment, the compressor housing includes at least one welding position and a plurality of prefabricated structures welded through the welding position, and the prefabricated structures are injection molded separately. Among the plurality of prefabricated structures, there are included: a first prefabricated structure having the compressor upper housing 110, and a second prefabricated structure having the compressor lower housing 130. The first prefabricated structure and the second prefabricated structure are injection molded separately and then welded to each other or welded through other prefabricated structures.

[0048] It should be noted that by splitting the compressor housing into a plurality of prefabricated structures, modular production is realized, the complexity of the injection mold is reduced, the manufacturing flexibility is improved, and it is convenient to continue to replace and combine the compressor upper housing 110 and the compressor lower housing 130 of different specifications to realize compressor housings 100 with different principles or functions. At the same time, the modular production of the compressor housing is also convenient for installing various internal components such as motors and pump bodies into any prefabricated structure of the compressor housing and then welding the respective prefabricated structures.

[0049] Preferably, when welding between adjacent prefabricated structures, it can be connected by hot plate welding or ultrasonic welding process, so as to be able to achieve rapid assembly and seamless connection, ensure the sealing performance of the compressor housing, and avoid the risk of refrigerant leakage.

[0050] See Figure 6 , in a specific embodiment, the main compressor housing 120 includes a first housing 121 and a second housing 122. The first housing 121 and the compressor upper housing 110 form an integrated first prefabricated structure, and the second housing 122 and the compressor lower housing 130 form an integrated second prefabricated structure. The first housing 121 and the second housing 122 are welded and connected through the welding position.

[0051] It should be noted that the cylinder body is designed in a split manner and combined with the upper compressor housing 110 and the lower compressor housing 130 respectively. Neither the upper compressor housing 110 nor the lower compressor housing 130 needs to be injection-molded separately, which improves production efficiency and reduces the number of welding positions, thereby enhancing welding efficiency and connection reliability. After the main compressor housing 120 is split, the requirements for the mold size are significantly reduced, facilitating the processing of larger compressor housings. After the upper compressor housing 110 and the lower compressor housing 130 are injection-molded separately, it is also convenient for them to be demolded separately. Any part of the main compressor housing 120 can be demolded axially along with the upper compressor housing 110 or the lower compressor housing 130.

[0052] Among them, the main compressor housing 120 can divide the first housing 121 and the second housing 122 in any proportion, such as 1:1, 1:2, etc., which is not limited here. When other bypass pipelines or sensors and other components are arranged on the side of the main compressor housing 120, for the sake of avoidance or processing convenience, the main compressor housing 120 can also be divided into more housing units or housings with different proportions, which is not limited here.

[0053] In a specific embodiment, the main compressor housing 120 and the upper compressor housing 110 form an integrated first prefabricated structure, and the lower compressor housing 130 is the second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through welding positions.

[0054] It should be noted that the main compressor housing 120 coincides with the edge of the upper compressor housing 110 axially. Therefore, the main compressor housing 120 and the upper compressor housing 110 can be injection-molded together and demolded together. The upper compressor housing 110 does not need to be injection-molded separately, reducing the number of injection-molding and welding operations, simplifying the assembly process of the compressor housing, and improving production efficiency.

[0055] See Figure 7 , in a specific embodiment, the upper compressor housing 110 is the first prefabricated structure, and the main compressor housing 120 and the lower compressor housing 130 form an integrated second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through welding positions.

[0056] It should be noted that the main compressor housing 120 coincides with the edge of the lower compressor housing 130 axially. Therefore, the main compressor housing 120 and the lower compressor housing 130 can be injection-molded together and demolded together. The lower compressor housing 130 does not need to be injection-molded separately, reducing the number of injection-molding and welding operations, simplifying the assembly process of the compressor housing, and improving production efficiency.

[0057] See Figure 3, in a specific embodiment, the upper compressor housing 110 is the first prefabricated structure, and the lower compressor housing 130 is the second prefabricated structure; among the multiple prefabricated structures, there is also a third prefabricated structure, which is the main compressor housing 120. The first prefabricated structure, the third prefabricated structure, and the second prefabricated structure are sequentially welded and connected through welding positions.

[0058] It should be noted that the upper compressor housing 110, the main compressor housing 120, and the lower compressor housing 130 are all injection-molded separately to achieve a complete modular design, which is convenient for replacing components according to size requirements. For example, the main compressor housing 120 with different lengths can be replaced to adapt to different volume requirements.

[0059] In a specific embodiment, the welding position includes: a first mating structure 141 and a second mating structure 142. The first mating structure 141 and the second mating structure 142 are sleeved and mated, and then welded and connected.

[0060] It should be noted that the first mating structure 141 and the second mating structure 142 can be installed with limited positions, and before welding the upper compressor housing 110 and the main compressor housing 120, or before welding the main compressor housing 120 and the lower compressor housing 130, they play a role of physical positioning to avoid welding misalignment; and the sleeved structure can increase the welding contact area and improve the welding strength.

[0061] Among them, the first mating structure 141 and the second mating structure 142 can be stepped mating structures or mating structures with at least one inclined surface to achieve lateral limiting effects. For example, the first mating structure 141 is provided at the end of the main compressor housing 120, and the second mating structure 142 is provided at one end of the upper compressor housing 110 or the lower compressor housing 130 close to the main compressor housing 120. The first mating structure 141 is an inner ring structure, and the second mating structure 142 is an outer ring structure. The second mating structure 142 is sleeved outside the first mating structure 141 to achieve the positioning and installation of the upper compressor housing 110 and the main compressor housing 120, or the positioning and installation of the main compressor housing 120 and the lower compressor housing 130.

[0062] See Figure 3 and Figure 7 , in a specific embodiment, the compressor housing further includes: positioning feet 151. The positioning feet 151 are made of plastic, and the positioning feet 151 and the lower compressor housing 130 form an integral second prefabricated structure.

[0063] It should be noted that the positioning feet 151 are used to support the compressor housing and stably install the compressor housing on the damping springs. The positioning feet 151 are made of plastic to further reduce the weight and facilitate transportation. Moreover, the positioning feet 151 do not require painting for waterproof and anti-corrosion purposes, simplifying the process flow. The positioning feet 151 and the compressor lower housing 130 are integrally injection-molded, which further improves the injection efficiency, eliminates the assembly gap between the feet and the housing, and enhances the installation stability. Additionally, compared with bolt fixation, the integrally injection-molded form has no risk of loosening and reduces the maintenance cost.

[0064] See Figure 2 and Figure 6 , in another specific embodiment, the compressor housing further includes: positioning feet 151 and an embedded reinforcing plate 152. The embedded reinforcing plate 152 is made of metal or alloy. The embedded reinforcing plate 152 is embedded in the compressor lower housing 130, and the positioning feet 151 are welded to the embedded reinforcing plate 152. Among them, the embedded reinforcing plate 152 is installed in the mold of the compressor lower housing 130. By injecting the compressor lower housing 130, the embedded reinforcing plate 152 and the compressor lower housing 130 are fitted together to form a first prefabricated structure.

[0065] It should be noted that the embedded reinforcing plate 152 is used to improve the strength of the compressor lower housing 130, enhance the load-bearing capacity of the compressor housing and the installation stability. After injecting the compressor lower housing 130, the embedded reinforcing plate 152 can be closely fitted with the compressor lower housing 130 to avoid loosening of the connection caused by vibration, so as to stably install the positioning feet 151 on the embedded reinforcing plate 152.

[0066] Preferably, the embedded reinforcing plate 152 is a disc structure with a diameter smaller than that of the compressor lower housing 130. The embedded reinforcing plate 152 has grooves or protrusions in the circumferential direction, so that after the injection molding of the compressor lower housing 130 is completed, protrusions or grooves that are circumferentially matched with the embedded reinforcing plate 152 can be formed to achieve the fitting of the two. For example, the embedded reinforcing plate 152 has a plurality of equally spaced grooves in the circumferential direction. The grooves can be fan-shaped, square or triangular, which are not limited here. The number of grooves can be 3, 4, 6, etc. arranged along the circumferential direction.

[0067] Furthermore, the embedded reinforcing plate 152 has an installation surface exposed at the bottom of the compressor lower housing 130 for installing the positioning feet 151. Among them, threaded holes can be provided on the installation surface for locking the positioning feet 151 through fasteners, or the positioning feet 151 can be directly welded on the installation surface, which is not limited here.

[0068] See Figures 1-3 , and Figures 6-11, in a specific embodiment, the compressor housing further includes: a terminal insert 161, a screw insert 162, and / or an air pipe insert 163. The terminal insert 161, the screw insert 162, and / or the air pipe insert 163 are embedded in the upper compressor housing 110; wherein, the terminal insert 161, the screw insert 162, and / or the air pipe insert 163 are installed in the mold of the upper compressor housing 110, and by injecting the upper compressor housing 110, the terminal insert 161, the screw insert 162, and / or the air pipe insert 163 are fitted with the upper compressor housing 110 to form a first prefabricated structure.

[0069] It should be noted that the terminal insert 161 is used to supply power and control the compressor housing 100, for example, made of copper alloy; the screw insert 162 is used to fix the compressor housing 100 to other components, for example, made of stainless steel; the air pipe insert 163 is used to convey gas in or out, for example, made of aluminum alloy. The form of inserts can stably install the terminal, screw, and air pipe on the upper compressor housing 110. After injecting the upper compressor housing 110, the terminal, screw, and air pipe can be tightly fitted with the upper compressor housing 110 to achieve stable wiring, screw installation, and air pipe gas conduction functions; there is no need to fix the terminal, screw, and air pipe subsequently. Integral injection molding can make the installation of the terminal, screw, and air pipe more convenient, improve airtightness, and protect the integrity of the compressor housing; the compressor housing is made of plastic, which also plays an insulating role for the terminal insert 161.

[0070] Preferably, one end of the screw insert 162 with a thread extends out of the top of the upper compressor housing 110 for installing parts such as nuts to be fixed to other components; the other head of the screw insert 162 for operation is embedded in the upper compressor housing 110 and is not exposed in the inner cavity of the compressor housing, making the inner cavity of the compressor housing smoother and not contaminated.

[0071] Preferably, the terminal insert 161 includes an insert base 161a and a plurality of terminal bodies 161b. The insert base 161a is embedded in the upper compressor housing 110. Grooves or protrusion structures can be provided on the periphery of the insert base 161a to make it fit and connect with the upper compressor housing 110. The plurality of terminal bodies 161b are installed on the insert base 161a, and the plurality of terminal bodies 161b extend out of both the inner and outer sides of the upper compressor housing 110 to achieve electrical connection on both sides.

[0072] Preferably, the trachea insert 163 includes a sealing sleeve 163a and a trachea 163b. The sealing sleeve 163a is fitted and connected to the upper compressor housing 110 through a groove or a raised structure. The sealing sleeve 163a has a structure for accommodating and mating with the trachea 163b. Specifically, the sealing sleeve 163a has a first pipe diameter section and a second pipe diameter section. The inner diameter of the first pipe diameter section matches the outer diameter of the trachea 163b for stable connection, and the inner diameter of the second pipe diameter section is smaller than the outer diameter of the trachea 163b, thus playing a role in limiting and supporting the trachea 163b.

[0073] See Figures 1-3 , Figures 6-7 , and Figure 12 , in a specific embodiment, the compressor housing includes an embedded mounting plate 171. The embedded mounting plate 171 is made of metal or alloy. The embedded mounting plate 171 is embedded in the side of the main compressor housing 120 and forms a prefabricated structure with at least a part of the main compressor housing 120. Among them, the embedded mounting plate 171 is used to fix the liquid receiver 210.

[0074] Figure 12 is a top view of the embedded mounting plate 171. From the top view, the embedded mounting plate 171 is an arc plate, and its radian matches that of the main compressor housing 120.

[0075] It should be noted that the embedded mounting plate 171 is made of metal or alloy, which can improve the strength of the connection position of the liquid receiver 210 on the compressor housing and prevent cracking or loosening of the connection position. The embedded mounting plate 171 can be seamlessly matched with the main compressor housing 120 by using an embedded structure, and the embedded mounting plate 171 itself does not require subsequent installation and reinforcement steps. It can be formed with the main compressor housing 120 in one molding when placed in the mold, improving the assembly efficiency of the embedded mounting plate 171.

[0076] For example, grooves or protrusions can be provided on the left and right sides of the embedded mounting plate 171 to achieve a fitting connection after the injection molding of the main compressor housing 120.

[0077] See Figures 1-3 , Figures 6-7, in a specific embodiment, the compressor housing further includes: a bypass line insert 172 disposed on the side of the compressor main housing 120 for installing a bypass line and fixing the pump body of the compressor housing 100. Specifically, after the compressor main housing 120 and the bypass line insert 172 are injection-molded, the pump body of the compressor housing 100 is installed into the compressor main housing 120 and cooperatively installed with a plurality of bypass line inserts 172 respectively to achieve the positioning and fixing of the pump body. In addition, the bypass line insert 172 is also used for installing process pipelines, such as for filling refrigerants such as water or oil, or for refrigerant recovery or connecting external devices such as pressure gauges and temperature sensors to achieve the start / stop of refrigeration or control of the refrigeration capacity, or connecting a bypass valve to balance the suction and discharge pressures to prevent reverse rotation or liquid hammer, etc.

[0078] It should be noted that the bypass line insert 172 can be a tubular insert or a square insert. The bypass line insert 172 is provided with annular grooves on its circumferential direction or at least on opposite sides thereof to be fitted with the side surface of the compressor main housing 120, so as to complete the assembly of the bypass line insert 172 when the compressor main housing 120 is molded, and has good fixing effect and bypass line sealing performance.

[0079] See Figure 13 , the present invention provides a compressor assembly 200, the compressor assembly 200 includes the compressor housing 100 provided by any of the above technical solutions, and further includes: a liquid receiver 210 and a clamp 220, the clamp 220 is clamped on the circumferential side of the liquid receiver 210, and the clamp 220 is welded to the embedded mounting plate 171.

[0080] In this embodiment, the clamp 220 is used to fix the liquid receiver 210, realizing the quick disassembly and assembly of the liquid receiver 210, which is convenient for maintaining the liquid receiver 210; the welding connection is adopted between the clamp 220 and the embedded mounting plate 171 instead of fasteners such as bolts, avoiding the failure of the fasteners caused by vibration and improving the overall reliability of the assembly.

[0081] Preferably, the clamp 220 is of a circular ring structure, the circular ring structure has a notch, and the notch is locked by bolts and nuts to adjust the opening degree, so as to tighten or loosen the clamp 220 to realize the disassembly and assembly of the liquid receiver 210.

[0082] The present invention provides a manufacturing method of a compressor housing 100, the manufacturing method is used to manufacture the compressor housing 100 provided by any of the above technical solutions, and the manufacturing method includes: integrally injection-molding a first prefabricated structure having a compressor upper housing 110; integrally injection-molding a second prefabricated structure having a compressor lower housing 130; welding the first prefabricated structure and the second prefabricated structure to each other or welding through other prefabricated structures.

[0083] In this embodiment, the manufacturing method of the compressor housing 100 uses a plastic material to manufacture the compressor housing, which reduces the weight of the compressor housing, reduces transportation costs, and efficiently manufactures the compressor housing, effectively improving production capacity. Moreover, using plastic achieves an anti-corrosion effect and saves the painting process, so the process is simpler and it also avoids environmental pollution caused by painting.

[0084] In a specific embodiment, a first prefabricated structure having the compressor upper housing 110 is integrally injection-molded. Specifically, it includes: forming a first prefabricated structure by integrally injection-molding at least a part of the compressor main housing 120 and the compressor upper housing 110. And / or, a second prefabricated structure having the compressor lower housing 130 is integrally injection-molded. Specifically, it includes: forming a second prefabricated structure by integrally injection-molding at least a part of the compressor main housing 120 and the compressor lower housing 130.

[0085] It should be noted that when the compressor main housing 120 is injection-molded in combination with the compressor upper housing 110 or the compressor lower housing 130, the corresponding processes of separately injection-molding and welding the compressor upper housing 110 or the compressor lower housing 130 can be saved, the production efficiency is improved, and reducing the welding positions makes the overall compressor housing more reliable and the appearance smoother and more beautiful.

[0086] In a specific embodiment, a first prefabricated structure having the compressor upper housing 110 is integrally injection-molded. Specifically, it includes: installing the terminal post insert 161, the screw insert 162, and / or the air pipe insert 163 in the mold of the compressor upper housing 110, and by injection-molding the compressor upper housing 110, making the terminal post insert 161, the screw insert 162, and / or the air pipe insert 163 be embedded and combined with the compressor upper housing 110 to form a first prefabricated structure.

[0087] It should be noted that integrally injection-molding can make the installation of the terminal post, the screw, and the air pipe 163b more convenient, without subsequent fastener or welding processes, the sealing performance of the compressor housing is better, and the installation of the terminal post, the screw, and the air pipe 163b is more stable.

[0088] In a specific embodiment, a second prefabricated structure having the compressor lower housing 130 is integrally injection-molded. Specifically, it includes: installing the embedded reinforcing plate 152 in the mold of the compressor lower housing 130, and by injection-molding the compressor lower housing 130, making the embedded reinforcing plate 152 be embedded and combined with the compressor lower housing 130 to form a first prefabricated structure, and welding the positioning feet 151 to the embedded reinforcing plate 152.

[0089] It should be noted that the embedded reinforcing plate 152 is integrally formed by being embedded in the compressor lower housing 130, which reduces the splicing process of the embedded reinforcing plate 152. After the stable installation of the embedded reinforcing plate 152, the positioning feet 151 can achieve stable support after being fixed.

[0090] In a specific embodiment, the first prefabricated structure and the second prefabricated structure are welded to each other or welded through other prefabricated structures, specifically including: taking the compressor main housing 120 as the third prefabricated structure and welding it between the first prefabricated structure and the second prefabricated structure, so as to facilitate the replacement of the compressor main housing 120 with different lengths.

[0091] It should be noted that when the compressor housing is used as an independent third prefabricated structure or partially incorporated into the first prefabricated structure and the second prefabricated structure, the embedded mounting plate 171 and the bypass pipeline insert 172 can be installed into the corresponding mold of the compressor main housing 120, and the embedded installation can be completed during the molding of the compressor main housing 120, improving the production efficiency and connection strength.

[0092] In a specific embodiment, the first prefabricated structure may include the compressor upper housing 110 and a part of the compressor main housing 120, and the second prefabricated structure may include the compressor lower housing 130 and another part of the compressor main housing 120. After the first prefabricated structure and the second prefabricated structure are respectively injection molded, the motor and the pump body are installed in the first prefabricated structure and the second prefabricated structure, and the pump body is fixed to the multiple bypass pipeline inserts 172 on the side of the compressor main housing 120. Then, the first prefabricated structure and the second prefabricated structure are ultrasonically welded to achieve the sealed fixation of the compressor main housing 120, so as to facilitate the installation of each internal component of the compressor housing 100.

[0093] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A compressor housing for accommodating a motor and a pump body of the compressor, the compressor housing comprising a compressor upper housing (110), a compressor main housing (120) and a compressor lower housing (130), characterized in that, The upper compressor housing (110), the main compressor housing (120), and the lower compressor housing (130) are made of plastic. The upper compressor housing (110) is connected to the top end of the main compressor housing (120), and the lower compressor housing (130) is connected to the bottom end of the main compressor housing (120). The compressor housing includes at least one welding position and a plurality of prefabricated structures welded through the welding position, and the prefabricated structures are injection molded separately. Among the plurality of prefabricated structures, there are included: a first prefabricated structure having the upper compressor housing (110), and a second prefabricated structure having the lower compressor housing (130). The first prefabricated structure and the second prefabricated structure are injection molded separately and then welded to each other or welded through other prefabricated structures.

2. The compressor housing according to claim 1, characterized in that, The main compressor housing (120) includes a first housing (121) and a second housing (122). The first housing (121) and the upper compressor housing (110) form an integrated first prefabricated structure, and the second housing (122) and the lower compressor housing (130) form an integrated second prefabricated structure. The first housing (121) and the second housing (122) are welded and connected through the welding position.

3. The compressor housing according to claim 1, characterized in that, The main compressor housing (120) and the upper compressor housing (110) form an integrated first prefabricated structure, and the lower compressor housing (130) is the second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through the welding position.

4. The compressor housing according to claim 1, characterized in that, The upper compressor housing (110) is the first prefabricated structure, and the main compressor housing (120) and the lower compressor housing (130) form an integrated second prefabricated structure. The first prefabricated structure and the second prefabricated structure are welded and connected through the welding position.

5. The compressor housing according to claim 1, wherein, The upper compressor housing (110) is the first prefabricated structure, and the lower compressor housing (130) is the second prefabricated structure. Among the plurality of prefabricated structures, there is also included a third prefabricated structure, which is the main compressor housing (120). The first prefabricated structure, the third prefabricated structure, and the second prefabricated structure are sequentially welded and connected through the welding position.

6. The compressor housing according to claim 1, characterized in that, The welding position includes: a first mating structure (141) and a second mating structure (142). The first mating structure (141) and the second mating structure (142) are sleeved and mated and then welded and connected.

7. The compressor housing according to claim 1, wherein, The compressor housing further includes: positioning feet (151), which are made of plastic, and the positioning feet (151) and the lower compressor housing (130) form an integrated second prefabricated structure.

8. The compressor housing according to claim 1, characterized in that, The compressor housing further includes: positioning feet (151) and an embedded reinforcement plate (152). The embedded reinforcement plate (152) is made of metal or alloy. The embedded reinforcement plate (152) is embedded in the compressor lower housing (130), and the positioning feet (151) are welded to the embedded reinforcement plate (152). Among them, the embedded reinforcement plate (152) is installed in the mold of the compressor lower housing (130). By injecting the compressor lower housing (130), the embedded reinforcement plate (152) is fitted with the compressor lower housing (130) to form the first prefabricated structure.

9. The compressor housing according to claim 1, characterized in that, The compressor housing further includes: a terminal insert (161), a screw insert (162), and / or a gas pipe insert (163). The terminal insert (161), the screw insert (162), and / or the gas pipe insert (163) are embedded in the compressor upper housing (110). Among them, the terminal insert (161), the screw insert (162), and / or the gas pipe insert (163) are installed in the mold of the compressor upper housing (110). By injecting the compressor upper housing (110), the terminal insert (161), the screw insert (162), and / or the gas pipe insert (163) are fitted with the compressor upper housing (110) to form the first prefabricated structure.

10. The compressor housing according to claim 1, wherein, The compressor housing further includes: a bypass pipeline insert (172), which is arranged on the side of the compressor main housing (120) and is used for installing a bypass pipeline and fixing the pump body of the compressor.

11. The compressor housing according to any one of claims 1-10, characterized in that, The compressor housing includes an embedded mounting plate (171). The embedded mounting plate (171) is made of metal or alloy. The embedded mounting plate (171) is embedded in the side of the compressor main housing (120) and at least part of it forms the prefabricated structure with the compressor main housing (120). Among them, the embedded mounting plate (171) is used to fix the liquid reservoir (210).

12. A compressor assembly, characterized in that, The compressor assembly includes the compressor housing as claimed in claim 11, and further includes: a liquid reservoir (210) and a clamp (220). The clamp (220) is clamped on the circumference of the liquid reservoir (210), and the clamp (220) is welded to the embedded mounting plate (171).

13. A manufacturing method of a compressor housing, the manufacturing method being used to manufacture the compressor housing according to any one of claims 1 to 11, characterized in that, The manufacturing method includes: Integrally injection-molding the first prefabricated structure having the compressor upper housing (110). Integrally injection-molding the second prefabricated structure having the compressor lower housing (130). Welding the first prefabricated structure and the second prefabricated structure to each other or welding them through other prefabricated structures.

14. The manufacturing method according to claim 13, characterized in that, Integrally injection-molding the first prefabricated structure having the compressor upper housing (110) specifically includes: forming the first prefabricated structure by integrally injection-molding at least part of the compressor main housing (120) and the compressor upper housing (110). And / or, integrally injection-molding the second prefabricated structure having the compressor lower housing (130), specifically including: forming the second prefabricated structure by integrally injection-molding at least a part of the compressor main housing (120) and the compressor lower housing (130).

15. The manufacturing method according to claim 13, characterized in that, Integrally injection-molding the first prefabricated structure having the compressor upper housing (110), specifically including: Installing the terminal insert (161), the screw insert (162) and / or the air pipe insert (163) into the mold of the compressor upper housing (110), and by injection-molding the compressor upper housing (110), making the terminal insert (161), the screw insert (162) and / or the air pipe insert (163) fit with the compressor upper housing (110) to form the first prefabricated structure.

16. The manufacturing method according to claim 13, characterized in that, Integrally injection-molding the second prefabricated structure having the compressor lower housing (130), specifically including: installing the embedded reinforcing plate (152) into the mold of the compressor lower housing (130), and by injection-molding the compressor lower housing (130), making the embedded reinforcing plate (152) fit with the compressor lower housing (130) to form the first prefabricated structure, and welding the positioning support feet (151) to the embedded reinforcing plate (152).

Images