Heating module and integrated module electric compressor

Abstract

The utility model discloses a heating module and an integrated module electric compressor, belongs to the technical field of compressors, and aims to solve the problem of poor heat exchange efficiency of the existing compressor integrated with the heating module and the heating module using a thick film heater. According to the technical scheme, the heating module is characterized by comprising a base, a heating assembly and a heat conduction structure, a heating cavity is formed in the base, the heat conduction structure is arranged in the heating cavity and fixedly connected with the heating assembly or the heating cavity, and the heating module further comprises an upper cover plate and a first sealing gasket which are detachably connected with the base; the first sealing gasket is detachably connected into the first sealing groove, the heating assembly comprises the heating substrate and the second sealing gasket located between the heating substrate and the base, the heat conduction area is increased, the heat conduction depth is increased, heat on the heating substrate can be fully conducted into a heat conduction medium, and therefore the heat exchange efficiency is remarkably improved; the first sealing gasket and the second sealing gasket are adopted for double sealing, and the sealing effect on the heating cavity is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and more specifically, to a heating module and an integrated module electric compressor. Background Art

[0002] In an automotive air conditioning system, a compressor is one of the key devices. Its function is to compress gas. During the compression process, the gas pressure increases and the temperature also rises accordingly. However, in a low-temperature environment, the heating efficiency of a scroll compressor is often affected. The low temperature of the gas inhaled by the compressor results in a low exhaust temperature, thus making the heating effect of the air conditioning system poor. Aiming at the defect that the scroll compressor cannot quickly heat up at low temperature, the existing solutions mainly focus on heating the intake part of the compressor. However, the starting speed of this method is relatively slow and cannot meet the requirement of quickly warming up the cab.

[0003] In the Chinese invention patent application with the application number 202410603038.1, an electric compressor with a side-mounted integrated heating module is disclosed. This solution integrates the heating module at the bottom of the control part, reducing the installation difficulty of the heating module. And a heating module is arranged at the bottom of the control part near the intake of the compressor, so that the compressor can be heated more quickly during the process of heating the heat-conducting medium. In particular, the heating module can heat the refrigerant entering the compressor, thus significantly improving the heating speed of the compressor.

[0004] However, the heater in the above solution can only heat the upper layer of the heat-conducting medium, and the heat utilization is not sufficient, and the heat conversion rate is relatively low. The thick-film heater used therein is a heating device formed by using a thick-film screen printing process on a heating substrate, successively printing an insulating medium, a heating resistor, a conductor, and an insulating protective layer on the heating substrate and then sintering at high temperature. It has the characteristics of good heat conduction performance, large heat dissipation area, and high safety performance. However, the existing stainless-steel thick-film heater is limited by the screen printing technology, and there is no other heat dissipation structure on the surface of the heating substrate. Therefore, the surface temperature of the heating substrate is relatively high, and its heat cannot be fully and effectively utilized, resulting in waste of some waste heat, which will further affect the heat exchange efficiency. Therefore, a new solution is needed to solve the problem of poor heat exchange efficiency of the existing integrated heating module compressor and the heating module using a thick-film heater. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a heating module and an integrated module electric compressor, so as to improve the heating effect of the heating module on the heat-conducting medium through the structural setting.

[0006] The above technical object of the present utility model is achieved through the following technical solutions: a heating module, comprising a base, a heating component and a heat conduction structure. A heating cavity is provided in the base, the heat conduction structure is arranged in the heating cavity, and the heat conduction structure is fixedly connected to the heating component or the inner wall of the heating cavity;

[0007] The heating module further includes an upper cover plate and a first gasket that are detachably connected to the base. A first sealing groove is provided on one side of the base close to the upper cover plate, and the first gasket is detachably connected in the first sealing groove;

[0008] The heating component includes a heating substrate and a second gasket located between the heating substrate and the base.

[0009] The present utility model is further configured as: the heat conduction structure includes a plurality of heat conductors distributed in an array, and a heating area for accommodating a heat conduction medium is formed between adjacent heat conductors or between the heat conductor and the inner wall of the heating cavity.

[0010] The present utility model is further configured as: a second sealing groove is provided on the edge of the first sealing groove close to the heating cavity, the second gasket is installed in the second sealing groove, and the height of the second sealing groove in the direction perpendicular to the base is lower than the height of the first sealing groove.

[0011] The present utility model is further configured as: the heat conduction structure is fixedly connected to the inner bottom wall of the heating cavity, the heat conductor is integrally formed with the base, and after assembly, the end of the heat conductor away from the base abuts against the lower surface of the heating substrate.

[0012] The present utility model is further configured as: the heat conduction structure is fixedly connected to one side of the heating component close to the base, the heat conduction structure further includes a plate, the plate is integrally formed with the heat conductor, and the end face of the plate away from the heat conductor is fixedly connected to the heating substrate

[0013] The present utility model is further configured as: the heating substrate and the plate are connected to each other by brazing.

[0014] The present utility model is further configured as: the heating substrate is detachably connected to the base through a connection terminal.

[0015] The present utility model is further configured as: a plurality of through holes are provided on the heating substrate and / or the plate.

[0016] The present utility model is further configured as: a plurality of installation grooves are provided in the first sealing groove, the upper cover plate is threadedly connected to the installation grooves through bolts, and the bolts penetrate through the upper cover plate, the first gasket and the heating substrate.

[0017] The present utility model also discloses an integrated module electric compressor, including the heating module according to any one of the above.

[0018] In summary, the utility model has the following beneficial effects:

[0019] The utility model effectively overcomes the problem of low heat exchange efficiency of the compressor and the thick film heater of the existing integrated heating module, significantly improves the heating effect on the heat conduction medium. The heat conduction structure is connected to the heating component or the heating cavity, and the heat conduction body with uniform distribution is used as the heat conduction structure, which not only increases the heat conduction area but also increases the heat conduction depth, and can fully conduct the heat on the heating substrate to the heat conduction medium, thereby significantly improving the heat exchange efficiency. The first gasket and the second gasket are used for double sealing, which significantly improves the sealing effect on the heating cavity, prevents the heat conduction medium from leaking or invading the electrical components during the heating expansion process, thereby improving the safety and reliability of the heating process. By brazing the plate with the attached heat conduction structure to the heating substrate and opening through holes on the plate and the substrate, it avoids the formation of an air sandwich between the two due to uneven welding during the welding process, thereby overcoming the disadvantage of uneven heat conduction and ensuring the uniformity and stability of the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of Embodiment 1;

[0021] Figure 2 It is an exploded view of Embodiment 2;

[0022] Figure 3 It is a simulation diagram of the overall heat distribution in Embodiment 1;

[0023] Figure 4 It is a simulation diagram of the heat distribution in the flow channel in Embodiment 1;

[0024] Figure 5 It is a simulation diagram of the overall heat distribution in Embodiment 2;

[0025] Figure 6 It is a simulation diagram of the heat distribution in the flow channel in Embodiment 2.

[0026] In the figure: 1, base; 11, heating cavity; 2, heating component; 21, heating substrate; 22, second gasket; 221, second sealing groove; 3, heat conduction structure; 31, heat conduction body; 32, plate; 4, upper cover plate; 51, first gasket; 52, first sealing groove; 6, connection terminal; 71, mounting groove; 72, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1:

[0029] As Figure 1 shown, the integrated module electric compressor includes a heating module. The heating module includes an aluminum base 1, an aluminum upper cover plate 4, a heating component 2, a heat conduction structure 3, and an aluminum first gasket 51. A heating cavity 11 is formed in the base 1. The heating component 2 includes a heating substrate 21 made of stainless steel and a second gasket 22 made of rubber located between the heating substrate 21 and the base 1. The heating substrate 21 is installed on the base 1 through a connection terminal 6. A plurality of through holes are formed in the heating substrate 21. A first sealing groove 52 is formed on one side of the base 1 close to the upper cover plate 4. The first gasket 51 is installed in the first sealing groove 52. A plurality of mounting grooves 71 with internal threads are formed in the first sealing groove 52. The upper cover plate 4 and the base 1 are connected by bolts 72 and the mounting grooves 71. The bolts 72 penetrate through the upper cover plate 4, the first gasket 51, and the heating substrate 21. A second sealing groove 221 is formed on the edge of the first sealing groove 52 close to the heating cavity 11. The second gasket 22 is installed in the second sealing groove 221. The height of the second sealing groove 221 in the direction perpendicular to the base 1 is lower than the height of the first sealing groove 52. Through the structures of the upper cover plate 4, the first gasket 51, and the second gasket 22, the leakage of the heat conduction medium can be effectively prevented, ensuring the stable operation of the heating module in a high-temperature and high-pressure environment. By using the first gasket 51 and the second gasket 22 for double sealing, the sealing effect on the heating cavity 11 can be significantly improved, preventing the heat conduction medium from leaking or invading electrical components during the heating and expansion process, thereby improving the safety and reliability of the heating process.

[0030] As Figure 1As shown, the heat conduction structure 3 is arranged in the heating cavity 11. The heat conduction structure 3 includes a number of heat conductors 31 distributed in an array. In this embodiment, the heat conductors 31 included in the heat conduction structure 3 are cylinders for easy processing. In other embodiments, the heat conductors 31 can also be set as pyramid structures, cone structures, prism structures, frustum of a pyramid structures or frustum of a cone structures and any combination thereof according to actual requirements or processing needs. The heat conductors 31 are integrally formed with the base 1. A heating area for accommodating a heat conduction medium is formed between adjacent heat conductors 31 or between the heat conductor 31 and the inner wall of the heating cavity 11. After assembly, the end of the heat conductor 31 far from the base 1 abuts against the lower surface of the heating substrate 21. By arranging the heat conductors 31 distributed in an array in the heating cavity 11, the heating area capable of accommodating the heat conduction medium can significantly increase the heat conduction surface area and the heat conduction depth, and can conduct the heat on the stainless steel substrate and fully conduct the heat into the heat conduction medium, significantly improving the heat exchange efficiency. Since the heat conductor 31 abuts against the lower surface of the heating substrate 21, the heat transfer is more rapid and uniform, and the refrigerant entering the compressor can be effectively heated in a short time, thereby significantly increasing the heating speed of the compressor.

[0031] As Figure 3 and Figure 4 shown, the overall heat distribution and the heat distribution in the flow channel of the heating module are relatively uniform.

[0032] Embodiment 2:

[0033] As Figure 2As shown in the figure, the integrated module electric compressor includes a heating module. The heating module includes an aluminum base 1, an aluminum upper cover plate 4, a heating component 2, a heat conduction structure 3, and an aluminum first gasket 51. A heating cavity 11 is provided in the base 1. The heating component 2 includes a heating substrate 21 made of stainless steel and a second gasket 22 made of rubber located between the heating substrate 21 and the base 1. The heating substrate 21 is installed on the base 1 through a connection terminal 6. A number of through holes are provided on the heating substrate 21. A first sealing groove 52 is provided on one side of the base 1 close to the upper cover plate 4. The first gasket 51 is installed in the first sealing groove 52. A number of mounting grooves 71 with internal threads are provided in the first sealing groove 52. The upper cover plate 4 and the base 1 are connected through bolts 72 and the mounting grooves 71. The bolts 72 penetrate through the upper cover plate 4, the first gasket 51, and the heating substrate 21. A second sealing groove 221 is provided at the edge of the first sealing groove 52 close to the heating cavity 11. The second gasket 22 is installed in the second sealing groove 221. The height of the second sealing groove 221 in the direction perpendicular to the base 1 is lower than the height of the first sealing groove 52. Through the structure of the upper cover plate 4, the first gasket 51, and the second gasket 22, the leakage of the heat conduction medium can be effectively prevented, ensuring the stable operation of the heating module in a high-temperature and high-pressure environment. By using the first gasket 51 and the second gasket 22 for double sealing, the sealing effect on the heating cavity 11 can be significantly improved, preventing the heat conduction medium from leaking or invading electrical components during the heating and expansion process, thereby improving the safety and reliability of the heating process.

[0034] As Figure 2 shown in the figure, the heat conduction structure 3 is arranged in the heating cavity 11. The heat conduction structure 3 includes a number of heat conductors 31 distributed in an array and a plate 32 made of aluminum alloy integrally formed with the heat conductors 31. In this embodiment, the heat conductors 31 included in the heat conduction structure 3 are cylinders for easy processing. In other embodiments, the heat conductors 31 can also be set as pyramid structures, cone structures, prism structures, frustum structures, or frustum of a cone structures and any combination thereof according to actual requirements or processing needs. One end face of the plate 32 away from the heat conductors 31 is brazed to one side of the heating substrate 21 close to the base 1. A number of through holes are provided on the heating substrate 21 and the plate 32. Through the integral formation of the plate 32 and the heat conductors 31, and the brazing connection between the plate 32 and the heating substrate 21, an efficient heat conduction path is formed, enabling heat to be transferred from the heating substrate 21 to the heat conductors 31 more quickly and then to the heat conduction medium, improving the heat exchange efficiency. By using the brazing method to connect the plate 32 with the attached heat conduction structure 3 to the heating substrate 21, and through holes are provided on the plate 32 or the substrate, the air between the plate 32 and the heating substrate 21 can be discharged during the welding process, avoiding the formation of an air layer between the two, resulting in uneven heat distribution of the heating component and reducing the heat utilization rate.

[0035] As Figure 5 andFigure 6 As shown, the overall heat distribution of the heating module and the uniformity of the heat distribution in the flow channels are improved, and compared with Embodiment 1, it has a higher heat utilization rate.

[0036] In other embodiments, in order to improve the structural strength of the heat conductor 31, the heat conductor 31 may be provided as a split structure. The heat conductor 31 includes a first part (not shown) and a second part (not shown) that are separated from each other. The first part is fixed to the plate 32, and the second part is fixed to the base 1. After assembly, the first part and the second part abut against each other or are inserted into each other to achieve the transfer of heat from the heating substrate 21 to the heat transfer medium. In this embodiment, the heat conductor 31 is a cylinder jointly formed by the first part and the second part.

[0037] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Heating module, comprising a base (1), a heating component (2) and a heat conduction structure (3), wherein a heating cavity (11) is formed in the base (1), and the heat conduction structure (3) is arranged in the heating cavity (11), characterized in that: The heat conduction structure (3) is fixedly connected to the heating component (2) or the heating chamber (11); The heating module further includes an upper cover plate (4) and a first gasket (51) detachably connected to the base (1). A first sealing groove (52) is formed on one side of the base (1) close to the upper cover plate (4), and the first gasket (51) is detachably connected in the first sealing groove (52); The heating component (2) includes a heating substrate (21) and a second gasket (22) located between the heating substrate (21) and the base (1).

2. The heating module according to claim 1, wherein: The heat conduction structure (3) includes a plurality of heat conductors (31) distributed in an array. A heating area for accommodating a heat conduction medium is formed between adjacent heat conductors (31) or between the heat conductor (31) and the inner wall of the heating chamber (11).

3. The heating module according to claim 1, characterized in that: A second sealing groove (221) is formed on the edge of the first sealing groove (52) close to the heating chamber (11). The second gasket (22) is installed in the second sealing groove (221), and the height of the second sealing groove (221) in the direction perpendicular to the base (1) is lower than the height of the first sealing groove (52).

4. The heating module according to claim 2, wherein: The heat conduction structure (3) is fixedly connected to the inner bottom wall of the heating chamber (11). The heat conductor (31) is integrally formed with the base (1). After assembly, one end of the heat conductor (31) away from the base (1) abuts against the lower surface of the heating substrate (21).

5. The heating module according to claim 2, characterized in that: The heat conduction structure (3) is fixedly connected to one side of the heating component (2) close to the base (1). The heat conduction structure (3) further includes a plate (32). The plate (32) is integrally formed with the heat conductor (31), and one end face of the plate (32) away from the heat conductor (31) is fixedly connected to the heating substrate (21).

6. The heating module according to claim 5, characterized in that: The heating substrate (21) and the plate (32) are connected to each other by brazing.

7. The heating module according to claim 4 or 5, characterized in that: The heating substrate (21) is detachably connected to the base (1) through a connection terminal (6).

8. The heating module according to claim 6, wherein: A plurality of through holes are formed in the heating substrate (21) and / or the plate (32).

9. The heating module according to claim 4 or 5, characterized in that: A plurality of mounting grooves (71) are formed in the first sealing groove (52). The upper cover plate (4) is threadedly connected to the mounting grooves (71) through bolts (72). The bolts (72) penetrate through the upper cover plate (4), the first gasket (51), and the heating substrate (21).

10. An integrated module electric compressor, characterized in that: Including the heating module according to any one of claims 1-9.

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