Compressor heat dissipation structure and compressor

Abstract

The utility model belongs to compressor technical field discloses a kind of compressor heat dissipation structure and compressor.The compressor heat dissipation structure includes shell and fin group, shell has installation part, installation part is connected with IGBT component, fin group is connected in shell, heat generated by IGBT component heating can be conducted to fin group on shell, and heat is released outward by fin group.Through above-mentioned setting, the heat dissipation contact area of shell and IGBT component can be increased, so that the heat dissipation efficiency of shell to IGBT component can be accelerated, so that shell can transmit heat faster to heat source outside, so that the temperature when IGBT component works can be effectively reduced, so as to guarantee the service life and safety of IGBT component, so that the heat dissipation effect of IGBT component is better when the compressor with the above-mentioned compressor heat dissipation structure is used, so as to guarantee the use performance and safety and reliability of compressor, the service life of compressor can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a compressor heat dissipation structure and a compressor. Background Technology

[0002] IGBT (Insulated Gate Bipolar Transistor) is a new type of composite power device developed based on MOSFET and bipolar transistor. IGBT combines the advantages of transistor devices, such as low on-state voltage drop, high current carrying capacity, and good thermal stability, and is therefore widely used in power electronic devices.

[0003] Currently, with the widespread application of new energy vehicles in various models, the displacement of corresponding air conditioning compressors is also increasing. The IGBTs and motors in the controller are the main sources of heat generation, which directly affects the reliability of the compressor. In existing technologies, the heat dissipation of the IGBTs in the compressor controller mainly relies on heat conduction to the compressor casing, and then heat exchange between the casing and the refrigerant to achieve the heat dissipation effect. However, this heat dissipation method has poor heat dissipation efficiency and is prone to the problem of the IGBT temperature remaining too high.

[0004] Therefore, it is necessary to design a compressor heat dissipation structure and a compressor to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a compressor heat dissipation structure and compressor, which can solve the problem of excessive temperature in the IGBT of the compressor controller due to poor heat dissipation, thereby ensuring the performance and safety of the compressor and extending its service life.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A compressor heat dissipation structure includes a housing and a heat sink assembly. The housing has a mounting part that is connected to an IGBT assembly. The heat sink assembly is connected to the housing. The heat generated by the IGBT assembly can be conducted through the housing to the heat sink assembly and then released to the outside through the heat sink assembly.

[0008] Preferably, the housing includes a bottom shell and a cover that fits against the bottom shell. The mounting portion is provided on the inner side of the bottom wall of the bottom shell for fitting against the cover. The heat sink assembly is provided on the inner side of the bottom of the cover for fitting against the bottom shell. The cover also has an air inlet and an exhaust port. The heat sink assembly is disposed on the refrigerant path between the air inlet and the exhaust port.

[0009] Preferably, the air inlet includes a first air hole and a second air hole. The first air hole is formed on the outer side wall of the shell cover, and the second air hole is formed on the inner side wall of the shell cover. The axes of the first air hole and the second air hole have an angle, so that the axis of the second air hole is aligned with the center of the heat sink assembly.

[0010] Preferably, the opening cross-sectional area of ​​the first pore is larger than that of the second pore.

[0011] Preferably, the heat sink assembly includes a plurality of spaced heat sink fins, the gaps between adjacent heat sink fins, and / or the gaps between the heat sink fins and the inner sidewall of the housing define a flow channel, which is disposed on the refrigerant path.

[0012] Preferably, the inner side of the bottom wall of the shell cover is provided with several reinforcing ribs, and the heat sink assembly is fixed on the reinforcing ribs.

[0013] Preferably, a diversion column is also provided on the inner side of the bottom wall of the shell cover;

[0014] The heat dissipation fins are arc-shaped, and multiple heat dissipation fins are symmetrically arranged on both sides of the flow divider with the connection line between the flow divider and the air inlet as the center. The space between the heat dissipation fins and the flow divider, the space between the heat dissipation fins and the shell cover, and / or the space between adjacent heat dissipation fins on the same side define the arc-shaped flow channel.

[0015] Preferably, two heat dissipation fins are provided on each side of the diversion column, and the two heat dissipation fins on the same side are staggered.

[0016] Preferably, the two heat dissipation fins near the splitter column are connected at the ends away from the air inlet.

[0017] The compressor includes a body and the aforementioned compressor heat dissipation structure, wherein the body is connected to the compressor heat dissipation structure.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a compressor heat dissipation structure, including a housing and a heat sink assembly connected to the housing. A mounting portion for connecting an IGBT module is provided within the housing. By connecting the heat sink assembly to the housing, the heat dissipation contact area between the compressor heat dissipation structure and the IGBT module can be increased, thereby accelerating the heat dissipation efficiency of the compressor heat dissipation structure on the IGBT module. This allows the compressor heat dissipation structure to transfer the heat generated by the IGBT module to the outside of the heat source more quickly. Compared with existing related technologies, this can effectively reduce the operating temperature of the IGBT module, thereby ensuring the service life and safety of the IGBT module.

[0020] This utility model also provides a compressor. By setting the above-mentioned compressor heat dissipation structure inside the compressor, the heat dissipation effect of the IGBT component is better when the compressor is in use, thereby ensuring the performance and safety of the compressor and extending the service life of the compressor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the compressor heat dissipation structure provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the bottom shell provided by this utility model;

[0023] Figure 3 It is along Figure 1 Sectional view at point AA.

[0024] In the picture:

[0025] 100. IGBT components;

[0026] 1. Shell; 11. Bottom shell; 111. Mounting part; 12. Shell cover; 121. Exhaust port; 122. Inlet; 1221. First air hole; 1222. Second air hole; 123. Reinforcing rib; 124. Diverter column;

[0027] 2. Heat sink assembly; 21. Heat sink fins; 22. Flow channel. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] The technical solution provided by this utility model will be described below with reference to the accompanying drawings and specific embodiments.

[0033] Combination Figures 1 to 3 As shown, this utility model provides a compressor heat dissipation structure, including a housing 1 and a heat sink assembly 2. The housing 1 has a mounting part 111, which is connected to an IGBT assembly 100. The heat sink assembly 2 is connected to the housing 1. The heat generated by the IGBT assembly 100 can be conducted to the heat sink assembly 2 through the housing 1 and can be released to the outside through the heat sink assembly 2.

[0034] In this embodiment, the heat sink assembly 2 is a heat transfer structure. By connecting it to the housing 1, it can increase the heat dissipation contact area between the housing 1 and the IGBT component 100, thereby enabling more efficient heat exchange with the heat dissipation medium. This allows the compressor heat dissipation structure to transfer the heat generated by the IGBT component 100 to the outside of the heat source more quickly. Compared with existing related technologies, it can effectively reduce the temperature of the IGBT component 100 during operation, thereby ensuring the service life and safety of the IGBT component 100.

[0035] refer to Figure 1 , Figure 2 As shown, in this embodiment, the housing 1 includes a bottom shell 11 and a cover 12 attached to the bottom shell 11. The bottom wall of the bottom shell 11, which is attached to the cover 12, is provided with the aforementioned mounting portion 111, so that the IGBT assembly 100 is attached to the bottom shell 11 through the mounting portion 111. The inner side of the bottom wall of the cover 12, which is attached to the bottom shell 11, is provided with a heat sink assembly 2. The heat generated by the IGBT assembly 100 can be transferred to the heat sink assembly 2 through the bottom shell 11 and the cover in sequence. In addition, the cover 12 is also provided with an air inlet 122. With the exhaust port 121, the heat sink assembly 2 is located on the refrigerant path between the air inlet 122 and the exhaust port 121, so that the refrigerant entering the housing 12 from the air inlet 122 can pass through the heat sink assembly 2, exchange heat with the heat sink assembly 2, and then be discharged from the exhaust port 121. The arrangement of the heat sink assembly 2 effectively increases the heat dissipation contact area between the housing 12 and the bottom housing 11, thereby accelerating the heat absorption of the compressor heat dissipation structure on the IGBT component 100 per unit time, and thus effectively enhancing the heat dissipation efficiency of the IGBT component 100.

[0036] In this embodiment, an exhaust port 121 is provided at one end of the cover 12 away from the bottom shell 11, and an air inlet 122 is provided on the side wall of the cover 12, which optimizes the flow path of the refrigerant.

[0037] Optionally, in this embodiment, a thermally conductive layer is sandwiched between the bottom shell 11 and the cover 12. For example, thermally conductive grease is applied to the opposite sides of the bottom shell 11 and the cover 12. The thermally conductive grease forms the aforementioned thermally conductive layer, which makes the heat generated by the IGBT component 100 more efficiently transferred from the bottom shell 11 to the cover 12 and the heat sink assembly 2, thus optimizing the heat dissipation path from the bottom shell 11 to the cover 12.

[0038] In this embodiment, a plurality of reinforcing ribs 123 are protruding from the inner side of the bottom wall of the shell cover 12. The heat sink assembly 2 is fixedly mounted on the reinforcing ribs 123. The reinforcing ribs 123 can improve the structural strength of the bottom wall of the shell cover 12 and enhance its resistance to deformation, preventing the bottom wall of the shell cover 12 from bending and deforming due to heat, which would reduce the fit between the shell cover 12 and the bottom shell 11, thereby ensuring good heat transfer between the bottom shell 11 and the shell cover 12. The number of reinforcing ribs 123 is not limited in this invention and can be selected according to the cross-sectional area of ​​the bottom wall of the shell cover 12, as long as the structural strength of the shell cover 12 meets the actual use requirements.

[0039] Optionally, in this embodiment, the heat sink assembly 2 includes multiple spaced heat sink fins 21. The gaps between adjacent heat sink fins 21 and the gaps between the heat sink fins 21 and the inner sidewall of the shell cover 12 form flow channels 22. The flow channels 22 are arranged on the refrigerant path, so that when the refrigerant passes through the heat sink assembly 2, it can be divided into multiple streams and uniformly conduct heat with the multiple heat sink fins 21, thereby increasing the contact area between the refrigerant and the heat sink assembly 2 and improving the heat conduction efficiency of the heat sink assembly 2 and the refrigerant.

[0040] Optionally, refer to Figure 3 As shown, in this embodiment, a diversion column 124 protrudes from the inner side of the bottom wall of the shell cover 12. The diversion column 124 and the shell cover 12 can be directly fixedly connected by welding or integral molding. In addition, the heat dissipation fins 21 provided in this embodiment are arc-shaped, and multiple heat dissipation fins 21 are symmetrically arranged on both sides of the diversion column 124 with the connection line between the diversion column 124 and the air inlet 122 (refer to the dotted line a in the figure) as the center. Through the above arrangement, the space between the heat dissipation fins 21 and the diversion column 124, and the space between the heat dissipation fins 21 and the shell cover 12 can form an arc-shaped flow channel 22. When the refrigerant passes through the flow channel 22, under the guidance of the flow channel 22, it can flow evenly to all areas of the bottom wall of the bottom shell 12, thereby increasing the area and range of heat transfer affected by the bottom shell 12 to a certain extent. This makes the heat dissipation of the IGBT component 100 by the heat dissipation fin group 2 more uniform and the cooling effect more significant.

[0041] Preferably, in this embodiment, two heat dissipation fins 21 are respectively provided on both sides of the diversion column 124, and the two heat dissipation fins 21 on the same side are staggered to lengthen the flow channel 22 between adjacent heat dissipation fins 21, so that the refrigerant can stay in the flow channel 22 for a longer time, thereby extending the heat exchange time between the refrigerant and the bottom shell 12, and further improving the heat dissipation effect on the IGBT component 100.

[0042] In this embodiment, the two heat dissipation fins 21 near the diversion column 124 are connected at the ends away from the air inlet 122 to form a heat dissipation structure with a cross-sectional shape of "C". On the one hand, the heat dissipation fins 21 can maintain an appropriate curvature to achieve a good flow guiding effect for the refrigerant. On the other hand, it can also increase the extension length of the two heat dissipation fins 21, so that a transition zone can be formed at the connection position of the two flow channels 22 formed by the diversion column 124 and the two heat dissipation fins 21 respectively. When the refrigerant enters one of the two flow channels 22 from the air inlet 122, a part of the refrigerant can enter the other flow channel 22 along one flow channel 22 and the transition zone, and exchange heat with the heat dissipation fins 21 that form the other flow channel 22. This can effectively prolong the residence time of the refrigerant on the heat dissipation fins 21, thereby further improving the heat exchange efficiency with the heat sink assembly 2.

[0043] Optionally, in this embodiment, the air inlet 122 includes a first vent 1221 and a second vent 1222. The first vent 1221 is formed on the outer side wall of the cover 12, and the second vent 1222 is formed on the inner side wall of the cover 12. An angle is formed between the axis of the first vent 1221 and the axis of the second vent 1222, so that the axis of the second vent 1222 can be aligned with the center of the heat sink assembly 2. By setting the angle, the air inlet 122, which was originally unable to be aligned with the axis of the cover 12, can use the second vent 1222 to adjust the direction of the refrigerant entering the cover 12, allowing the refrigerant to flow as evenly as possible through each flow channel 22 via the second vent 1222, thereby further improving the uniformity of heat exchange between the refrigerant and the heat sink assembly 2.

[0044] Furthermore, in this embodiment, the opening cross-sectional area of ​​the first vent 1221 is larger than the opening cross-sectional area of ​​the second vent 1222, so that the air inlet 122 forms a stepped hole with the opening cross-sectional area decreasing sequentially from the outside to the inside, thereby increasing the flow rate of the refrigerant entering the shell cover 12 and enabling sufficient heat exchange with the IGBT area of ​​the original air inlet 122.

[0045] This utility model also provides a compressor, including a body and the compressor heat dissipation structure described above. The body is connected to the compressor heat dissipation structure, specifically connected to the end of the cover 12 where an exhaust port 121 is provided. The types and quantities of components inside the body are determined according to the type of compressor. In this embodiment, the compressor is an electric scroll compressor, and the body is provided with a scroll compression mechanism and components that cooperate with the scroll compression mechanism, such as a stationary scroll plate and a moving scroll plate.

[0046] By incorporating the aforementioned compressor heat dissipation structure within the compressor, the IGBT component 100 achieves better heat dissipation during operation, thereby ensuring the compressor's performance and reliability, and extending its service life. When this compressor is applied to vehicles, it effectively enhances vehicle stability, extends vehicle lifespan, and reduces maintenance frequency.

[0047] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A compressor heat dissipation structure, characterized in that, The device includes a housing (1) and a heat sink assembly (2). The housing (1) has a mounting part (111) which is connected to the IGBT assembly (100). The heat sink assembly (2) is connected to the housing (1). The heat generated by the IGBT assembly (100) can be conducted through the housing (1) to the heat sink assembly (2) and released to the outside through the heat sink assembly (2).

2. The compressor heat dissipation structure according to claim 1, characterized in that, The housing (1) includes a bottom shell (11) and a cover (12) attached to the bottom shell (11). The mounting part (111) is provided on the inner side of the bottom wall of the bottom shell (11) for attaching with the cover (12). The heat sink assembly (2) is provided on the inner side of the bottom wall of the cover (12) for attaching with the bottom shell (11). The cover (12) is also provided with an air inlet (122) and an exhaust outlet (121). The heat sink assembly (2) is located on the refrigerant path between the air inlet (122) and the exhaust outlet (121).

3. The compressor heat dissipation structure according to claim 2, characterized in that, The air inlet (122) includes a first air hole (1221) and a second air hole (1222). The first air hole (1221) is formed on the outer side wall of the shell cover (12), and the second air hole (1222) is formed on the inner side wall of the shell cover (12). The axis of the first air hole (1221) and the axis of the second air hole (1222) have an angle, so that the axis of the second air hole (1222) is aligned with the center of the heat sink assembly (2).

4. The compressor heat dissipation structure according to claim 3, characterized in that, The opening cross-sectional area of ​​the first vent (1221) is larger than the opening cross-sectional area of ​​the second vent (1222).

5. The compressor heat dissipation structure according to claim 2, characterized in that, The heat sink assembly (2) includes a plurality of spaced heat sink fins (21), the gaps between adjacent heat sink fins (21), and / or the gaps between the heat sink fins (21) and the inner sidewall of the shell cover (12) define a flow channel (22), which is located on the refrigerant path.

6. The compressor heat dissipation structure according to claim 5, characterized in that, The inner side of the bottom wall of the shell cover (12) is provided with a number of reinforcing ribs (123), and the heat sink assembly (2) is fixed on the reinforcing ribs (123).

7. The compressor heat dissipation structure according to claim 6, characterized in that, The inner side of the bottom wall of the shell cover (12) is also provided with a diversion column (124). The heat dissipation fins (21) are arc-shaped, and multiple heat dissipation fins (21) are symmetrically arranged on both sides of the flow divider (124) with the connection line between the flow divider (124) and the air inlet (122) as the center. The space between the heat dissipation fins (21) and the flow divider (124), the space between the heat dissipation fins (21) and the shell cover (12), and / or the space between adjacent heat dissipation fins (21) on the same side defines the arc-shaped flow channel (22).

8. The compressor heat dissipation structure according to claim 7, characterized in that, Two heat dissipation fins (21) are respectively provided on both sides of the diversion column (124), and the two heat dissipation fins (21) on the same side are staggered.

9. The compressor heat dissipation structure according to claim 8, characterized in that, The two heat dissipation fins (21) near the diversion column (124) are connected at the ends away from the air inlet (122).

10. A compressor, characterized in that, It includes a body and a compressor heat dissipation structure as described in any one of claims 1-9, wherein the body is connected to the compressor heat dissipation structure.

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