A cooling structure, a manufacturing method thereof, and an axial magnetic field motor

Abstract

The present invention provides a cooling structure, a manufacturing method thereof, and an axial magnetic field motor. The cooling structure includes a housing and a flow channel formed inside the housing. The housing is formed by combining a heat-conducting material and a strength material, and a heat exchange surface is formed on the outer surface of the housing where the heat-conducting material is located for contacting a component to be cooled, so that the cooling structure can meet the requirements of both strength and heat conductivity at the same time, ensuring the stability and reliability of the cooling structure. And by introducing a cooling medium into the flow channel inside the housing, the component to be cooled can be effectively cooled.

Description

Technical Field

[0001] The present invention relates to the field of cooling, and particularly to a non-metallic cooling structure applicable to an axial magnetic field motor, a manufacturing method thereof, and an axial magnetic field motor. Background Art

[0002] An electric motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. Its main function is to generate a driving torque and serve as a power source for electrical appliances or various machines. The types of electric motors can be divided into radial magnetic field motors and axial magnetic field motors. The axial magnetic field motor, also known as a disk motor, has the characteristics of small volume, light weight, short axial dimension, and high power density, and can be used in most thin-type installation occasions, so it is widely used.

[0003] An electric motor includes a casing, and a stator and a rotor disposed inside the casing. The stator is the stationary part of the motor and is mainly composed of an iron core and coils wound around the iron core. The coils are wound with enameled wires. The function of the stator is to generate a rotating magnetic field so that the rotor is cut by magnetic lines of force in the magnetic field to generate current. During the operation of the motor, a lot of heat is generated inside, and most of the heat is generated by the coils, resulting in an increase in the coil temperature. If the coil temperature is too high, the insulation layer on the surface of the coil will be damaged, and a short circuit will occur between the enameled wires, causing the serious consequence of the motor being burned out; in addition, the permanent magnets on the rotor will also generate a part of the heat, and if the temperature of the permanent magnets is too high, demagnetization will occur, thereby reducing the performance of the motor. Therefore, the motor needs to be equipped with a cooling structure to cool the heating elements of the motor.

[0004] Among them, the cooling structure is used for the passage of a cooling medium to exchange heat with the heating elements of the motor. To improve the cooling capacity of the heating elements, most current cooling structures use metal materials with good thermal conductivity to achieve a better cooling effect. However, in some special occasions, the cooling structure of metal materials is no longer applicable. For example, inside an electromagnetic device, when a metal material is placed in an alternating magnetic field, eddy currents will be generated, increasing heat generation and significantly reducing the efficiency of the device. Although the cooling structure of non-metallic materials can be applied inside electromagnetic devices, the commonly used non-metallic cooling structures on the market cannot simultaneously meet high thermal conductivity and high mechanical strength. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects of the prior art and provide a non-metallic cooling structure formed by multi-material composite molding, a manufacturing method thereof, and an axial magnetic field motor. The cooling structure can simultaneously ensure high cooling performance and good mechanical strength. The purpose of the present invention can be achieved by the following technical solutions:

[0006] According to an object of the present invention, the present invention provides a cooling structure, the cooling structure including a housing and a flow channel formed inside the housing, the housing being formed by combining a heat-conducting material and a strength material, and a heat exchange surface being formed on the outer surface of the housing where the heat-conducting material is located for contacting a component to be cooled.

[0007] As a preferred embodiment, the housing is divided into at least one heat-conducting member composed of the heat-conducting material and at least one strength member composed of the strength material, and the heat-conducting member and the strength member are spliced to form the housing.

[0008] As a preferred embodiment, the housing is formed by mixing and injection molding the heat-conducting material and the strength material.

[0009] As a preferred embodiment, it further includes at least one reinforcing rib, and the reinforcing rib is disposed on the outer surface and / or the inner surface of the housing where the heat-conducting material is located;

[0010] And / or, it further includes at least one heat exchange member composed of the heat-conducting material, the outer surface and / or the inner surface of the housing where the heat-conducting material is located bulges to form the heat exchange member, and the heat exchange member located on the outer surface of the housing can be embedded inside the component to be cooled.

[0011] As a preferred embodiment, the housing of the cooling structure includes at least one stator opposing plate and at least one rotor opposing plate, and a plurality of stator sleeve holes penetrating through the rotor opposing plate and the stator opposing plate, the flow channel being formed between the rotor opposing plate and the stator opposing plate and surrounding each of the stator sleeve holes, and at least a part of the stator opposing plate and / or the rotor opposing plate being composed of the heat-conducting material.

[0012] As a preferred embodiment, the stator opposing plate includes an outer ring portion, an inner ring portion, and a plurality of branches composed of the heat-conducting material, the branches being connected between the outer ring portion and the inner ring portion, and the plurality of branches being circumferentially spaced apart to form the stator sleeve holes between two adjacent branches.

[0013] According to another object of the present invention, the present invention further provides an axial magnetic field motor, the axial magnetic field motor including at least one cooling structure of the above embodiments, the axial magnetic field motor further including at least one stator and at least one rotor, the stator and the rotor being spaced apart along the axis to generate an air gap between the stator and the rotor, and the cooling structure being sleeved on the stator.

[0014] According to another object of the present invention, the present invention further provides a manufacturing method of a cooling structure, the cooling structure including a housing and a flow channel formed inside the housing, the manufacturing method including the following steps:

[0015] Combine a heat-conducting material and a strength material to obtain the housing, and form a heat exchange surface on the outer surface of the housing where the heat-conducting material is located for contacting the component to be cooled.

[0016] As a preferred embodiment, the method includes:

[0017] Provide at least one heat-conducting component composed of the heat-conducting material and at least one strength component composed of the strength material;

[0018] Inject and combine the heat-conducting component and the strength component through a mold to obtain the housing.

[0019] As a preferred embodiment, the housing further includes a plurality of reinforcing ribs, the reinforcing ribs are disposed on the inner surface and / or the outer surface of the heat-conducting component, and the method includes:

[0020] Obtain the strength component with the reinforcing ribs;

[0021] Inject and combine the side of the strength component with the reinforcing ribs onto the heat-conducting component so that the reinforcing ribs are disposed on the inner surface and / or the outer surface of the heat-conducting component.

[0022] As a preferred embodiment, the method includes:

[0023] Mix the heat-conducting material and the strength material, and integrally inject the mixed heat-conducting material and strength material through a mold to obtain the housing.

[0024] Compared with the prior art, the present technical solution has the following advantages:

[0025] The housing of the cooling structure is formed by combining a heat-conducting material and a strength material, so that the cooling structure simultaneously meets the requirements of strength and heat conductivity, ensuring the stability and reliability of the cooling structure, and introducing a cooling medium into the flow channel inside the housing to effectively cool the component to be cooled. And a heat exchange surface is formed on the outer surface of the housing where the heat-conducting material is located, and the heat exchange surface directly contacts the component to be cooled, so that the component to be cooled and the cooling medium can effectively exchange heat, improving the heat exchange performance while ensuring the strength of the cooling structure, and thus achieving efficient cooling. In addition, the heat-conducting material and the strength material of the cooling structure can be non-metallic or metallic materials to increase the scope of use. Furthermore, the housing can be formed by splicing a rigid heat-conducting component and a strength component, or by integrally injecting the heat-conducting material and the strength material.

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Description of the Drawings

[0027] Figure 1Schematic diagram of the first embodiment of the cooling structure according to the present invention;

[0028] Figure 2 Schematic diagram of the second embodiment of the cooling structure according to the present invention;

[0029] Figure 3 Schematic diagram of the third embodiment of the cooling structure according to the present invention;

[0030] Figure 4 Schematic diagram of the fourth embodiment of the cooling structure according to the present invention;

[0031] Figure 5 Schematic diagram of the fifth embodiment of the cooling structure according to the present invention;

[0032] Figure 6 For Figure 5 Internal schematic diagram of the cooling structure;

[0033] Figure 7 Schematic diagram of the sixth embodiment of the cooling structure according to the present invention;

[0034] Figure 8 Schematic diagram of the seventh embodiment of the cooling structure according to the present invention;

[0035] Figure 9 For Figure 8 Side view of the cooling structure;

[0036] Figure 10 For Figure 9 Cross-sectional view along the A-A direction in;

[0037] Figure 11 For Figure 9 Cross-sectional view along the B-B direction in;

[0038] Figure 12 For Figure 8 Flow channel schematic diagram of the cooling structure;

[0039] Figure 13 Schematic diagram of the structure of an axial magnetic field motor according to an embodiment of the present invention;

[0040] Figure 14 For Figure 13 Schematic diagram of the structure of the stator in the axial magnetic field motor according to the present invention;

[0041] Figure 15 For Figure 13 Schematic diagram of the structure of the stator core in the axial magnetic field motor;

[0042] Figure 16 For Figure 13 Schematic diagram of the structure of the coil assembly in the axial magnetic field motor;

[0043] Figure 17 For Figure 13 Combined schematic diagram of the cooling structure and the housing in the axial magnetic field motor of

[0044] Figure 18 For Figure 13 Combined schematic diagram of the stator and the housing in the axial magnetic field motor of

[0045] Figure 19 For Figure 13 Structural schematic diagram of the housing in the axial magnetic field motor of

[0046] Figure 20 Structural schematic diagram of another embodiment of the stator of the present invention

[0047] Figure 21 For Figure 20 Structural schematic diagram of the stator core in the stator of

[0048] Figure 22 For Figure 20 Combined schematic diagram of the stator and the cooling structure of

[0049] Figure 23 Structural schematic diagram of another embodiment of the axial magnetic field motor of the present invention

[0050] Figure 24 For Figure 23 Structural schematic diagram of the stator in the axial magnetic field motor of

[0051] Figure 25 For Figure 23 Structural schematic diagram of the stator core in the axial magnetic field motor of

[0052] Figure 26 For Figure 23 Structural schematic diagram of the housing in the axial magnetic field motor of

[0053] Figure 27 For Figure 23 Combined schematic diagram of the housing and the cooling structure in the axial magnetic field motor of

[0054] Figure 28 Structural schematic diagram of another embodiment of the stator core of the present invention

[0055] Figure 29 For Figure 28 Combined schematic diagram of the stator core and the cooling structure of

[0056] Figure 30 Structural schematic diagram of another embodiment of the axial magnetic field motor of the present invention

[0057] Figure 31 For Figure 30 Combined schematic diagram of the stator and cooling structure in the axial magnetic field motor described above;

[0058] Figure 32 For Figure 30 Structural schematic diagram of the housing in the axial magnetic field motor described above;

[0059] Figure 33 Structural schematic diagram of another embodiment of the stator core of the present invention. Detailed implementation manners

[0060] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation manners, variations, improvements, equivalent manners, and other technical solutions without departing from the spirit and scope of the present invention.

[0061] As Figures 1 to 12 shown, the cooling structures 1300a - 1300g, the cooling structures 1300a - 1300g include a housing 1330, and a flow channel 1314 formed inside the housing 1330. The housing 1330 is formed by combining a heat - conducting material and a strength material, and a heat - exchange surface is formed on the outer surface of the housing where the heat - conducting material is located for contacting the component to be cooled.

[0062] The housing 1330 of the cooling structures 1300a - 1300g is formed by combining a heat - conducting material and a strength material, so that the cooling structures 1300a - 1300g can meet the requirements of both strength and heat conductivity at the same time, to ensure the stability and reliability of the cooling structures 1300a - 1300g. And by introducing a cooling medium into the flow channel 1314 inside the housing 1330, the component to be cooled is effectively cooled, where the cooling medium includes a coolant or a cooling gas And a heat - exchange surface is formed on the outer surface of the housing where the heat - conducting material is located, and the heat - exchange surface directly contacts the component to be cooled, so that the component to be cooled and the cooling medium can effectively exchange heat, improving the heat - exchange performance while ensuring the strength of the cooling structures 1300a - 1300g, and thus achieving efficient cooling. In addition, the heat - conducting material can be made of metal oxide or ceramic and other materials, and the strength material can be made of polyphenylene sulfide (PPS), polyfluoro - polymer processing aid (PPA) or polyether ether ketone (PEEK) and other materials to obtain a non - metal cooling structure and be applicable to an alternating magnetic field. Of course, it does not exclude using heat - conducting materials and strength materials made of metal to obtain a metal - material cooling structure.

[0063] The shape and splicing method of the cooling structure can be diverse. The following eight embodiments are used to introduce in detail:

[0064] The first embodiment

[0065] As Figure 1 shown, in the cooling structure 1300a of the first embodiment, its housing 1330 is divided into at least one heat-conducting member 13301 composed of the heat-conducting material and at least one strength member 13302 composed of the strength material, and the heat-conducting member 13301 and the strength member 13302 are spliced to form the housing 1330.

[0066] Specifically, the number of the heat-conducting member 13301 and the strength member 13302 is one each. The heat-conducting member 13301 is in a straight shape, and the strength member 13302 is in an n shape. The two are spliced to form the housing 1330 with a square cross-section. And the inner surfaces of the heat-conducting member 13301 and the strength member 13302 enclose the flow channel 1314, while the outer surface of the heat-conducting member 13301 forms a heat exchange surface to contact the piece to be cooled.

[0067] The splicing between the heat-conducting member 13301 and the strength member 13302 can be plug-in connection, socket connection, snap connection or screw connection, etc.

[0068] It should be noted that although the strength member 13302 plays a role in enhancing the cold area structure 1300a, when the cooling structure 1300a is arranged inside the piece to be cooled, the strength member 13302 can also achieve heat exchange.

[0069] The second embodiment

[0070] As Figure 2 shown, the cooling structure 1300b of the second embodiment is different from the cooling structure of the first embodiment in that the heat-conducting member 13301 and the strength member 13302 are both in a straight shape, and the number of the heat-conducting member 13301 and the strength member 13302 is two each. The two heat-conducting members 13301 are arranged oppositely, and the two strength members 13302 are arranged oppositely. And the adjacent heat-conducting member 13301 and strength member 13302 are spliced with each other to form the housing 1330 with a square cross-section.

[0071] Since the number of the heat-conducting members 13301 is two, the cooling structure 1300b of the second embodiment has two heat exchange surfaces, that is, the two opposite heat-conducting members 13301, and their outer surfaces respectively form the heat exchange surfaces. It can be seen that by increasing the number of the heat-conducting members 13301 and setting the corresponding installation positions of the heat-conducting members 13301, the piece to be cooled can be installed at different positions on the cooling structure, thereby increasing the application fields.

[0072] The third embodiment

[0073] As Figure 3 shown, the cooling structure 1300c of the third embodiment is different from the cooling structure of the first embodiment in that the cooling structure 1300c further includes at least one heat exchange member 1350 composed of the heat conductive material. The outer surface and / or inner surface of the housing where the heat conductive material is located protrudes to form the heat exchange member 1350, and the heat exchange member 1350 located on the outer surface of the housing can be embedded inside the component to be cooled.

[0074] Specifically, the heat conductive member 13301 composed of the heat conductive material has its inner / outer surface protrude to form the heat exchange member 1350 to enhance the heat exchange capacity. And the heat exchange member 1350 located on the outer surface of the heat conductive member 13001 can be embedded inside the component to be cooled to increase the heat exchange area between the two and further enhance the cooling effect on the component to be cooled.

[0075] The shape and number of the heat exchange member 1350 can be set according to actual requirements. For example, the number of the heat exchange members 1350 located on the outer surface of the heat conductive member 13001 is one, and it is located at the middle position of the heat exchange member 1350 and is embedded in the gap of the component to be cooled.

[0076] Fourth Embodiment

[0077] As Figure 4 shown, the cooling structure 1300d of the fourth embodiment is different from the cooling structure of the first embodiment in that the cooling structure 1300d further includes at least one reinforcing rib 1340. The reinforcing rib 1340 is arranged on the outer surface and / or inner surface of the housing where the heat conductive material is located. By providing the reinforcing rib 1340, the deformation of the cooling structure is prevented, thereby enhancing the strength of the cooling structure.

[0078] Specifically, for the heat-conducting member 13301 composed of the heat-conducting material, reinforcing ribs 1340 are provided on its inner / outer surface. The reinforcing ribs 1340 and the strength member 13302 can be made of the same material, and the two can be integrally formed. Then, through splicing of the strength member 13302 and the heat-conducting member 13301, the reinforcing ribs 1340 are arranged on the inner / outer surface of the heat-conducting member 13301. For example, the strength member 13302 is in an n shape, which includes a bottom plate and side plates extending upward along the two side edges of the bottom plate. A plurality of the reinforcing ribs 1340 are connected between the two side plates, and the plurality of the reinforcing ribs 1340 are arranged at intervals along the length direction of the bottom plate and are close to the upper ends of the side plates away from the bottom plate. After the heat-conducting member 13301 is inserted into the upper ends of the two side plates, the reinforcing ribs 1340 are located on the inner surface of the heat-conducting member 13301. Of course, the reinforcing ribs 1340 can be divided into upper and lower sides, and the heat-conducting member 13301 passes between the reinforcing ribs 1340 on the upper and lower sides, so that the reinforcing ribs 1340 are provided on both the inner / outer surfaces of the heat-conducting member 13301.

[0079] Fifth Embodiment

[0080] As Figure 5 shown, the cooling structure 1300e of the fifth embodiment is different from the cooling structure of the first embodiment in that the housing 1330 of the cooling structure 1300e includes at least one stator opposing plate 1332 and at least one rotor opposing plate 1331, and a plurality of stator sleeve holes 1313 penetrating through the rotor opposing plate 1331 and the stator opposing plate 1332. The flow channels 1314 are formed between the rotor opposing plate 1331 and the stator opposing plate 1332 and surround the periphery of each of the stator sleeve holes 1313. At least a part of the stator opposing plate 1332 and / or the rotor opposing plate 1331 is composed of the heat-conducting material.

[0081] Among them, the member to be cooled can be the stator 1000a - 1000e and the rotor 2000 of the axial magnetic field motor, refer to Figures 13 to 33As shown, the stators 1000a - 1000e include a stator core 1100a - 1100e, which includes a plurality of tooth blocks 1120 arranged at circumferential intervals. An air gap is maintained between each tooth block 1120 and the rotor 2000. The cooling structure 1300e is sleeved on the stator core 1100 in a one - to - one correspondence with the stator sleeve holes 1312 and the tooth blocks 1120. The rotor - facing plate 1331 of the housing 1330 is close to and faces the rotor 2000, while the stator - facing plate 1332 faces the side away from the rotor 2000. At this time, a flow channel 1314 formed between the rotor - facing plate 1331 and the stator - facing plate 1332 surrounds each tooth block 1120 to effectively cool the stator core 1100a - 1100e. And the rotor - facing plate 1331 is close to and faces the rotor 2000, so that while the cooling structure 1300e cools the stators 1000a - 1000e, it can also cool the rotor 2000, shortening the heat transfer paths between the rotor 2000 and the stators 1000a - 1000e and the cooling structure 1300e respectively, thereby effectively improving the heat dissipation effect to ensure the reliable operation of the motor. And by omitting the upper water channel on the motor housing, the structure can be simplified, and the processing difficulty and cost can be reduced.

[0082] Specifically, the number of the stator - facing plate 1332 and the rotor - facing plate 1331 is one each, and the distance between the two determines the thickness of the cooling structure 1300e. Refer to Figure 5 , the shape of the cooling structure 1300e in the fifth embodiment is generally a flat disc - like shape, which can ensure the advantage of the small axial dimension of the axial - field motor.

[0083] Continue to refer to Figure 5 , the stator - facing plate 1332 includes an outer ring portion 13321, an inner ring portion 13322 and a plurality of branches 13323 composed of the heat - conducting material. The branches 13323 are connected between the outer ring portion 13321 and the inner ring portion 13322, and the plurality of branches 13323 are arranged at circumferential intervals to form the stator sleeve holes 1313 between two adjacent branches 13323. Refer to Figure 5 and Figure 13, the branch 13323 can abut against the yoke plate 1110 of the stator core 1100a - 1100e, or against the coil assembly 1200 sleeved on the tooth block 1120. At this time, only the branch 13323 can adopt the heat conducting member 13301, while the outer ring part 13321 and the inner ring part 13322 adopt the strength member 13302 to exchange heat with the yoke plate 1110 and the coil assembly 1200. Of course, the outer ring part 13321 and the inner ring part 13322 can partially adopt the heat conducting member 13301, which can be selected according to actual needs.

[0084] Reference Figure 6 , the flow channel 1314 includes an outer ring flow channel 13141, an inner ring flow channel 13142, and a plurality of branch flow channels 13143 connecting between the outer ring flow channel 13141 and the inner ring flow channel 13142. The stator sleeve hole 1313 is formed between two adjacent branch flow channels 13143.

[0085] Specifically, the inner ring flow channel 13142 and the outer ring flow channel 13141 are arranged from the inside to the outside, and the plurality of branch flow channels 13143 are arranged at circumferential intervals, so that the stator sleeve hole 1313 is formed between two adjacent branch flow channels 13143. After the tooth block of the stator core is inserted into the stator sleeve hole 1313, the inner ring flow channel 13142 and the outer ring flow channel 13141 are correspondingly arranged on the radial two sides of the tooth block, and the branch flow channels 13143 are respectively corresponding to the circumferential two sides of the tooth block, so that the flow channel 1314 surrounds the tooth block, thereby improving the heat dissipation performance of the stator core. The shapes of the stator sleeve hole 1313 and the tooth block are adapted to each other, for example, both are fan-shaped, reference Figure 6 .

[0086] Continue to refer to Figure 6 , a plurality of barrier members 1315 are respectively arranged in the outer ring flow channel 13141 and the inner ring flow channel 13142, and the barrier members 1315 located in the outer ring flow channel 13141 and the inner ring flow channel 1314 are arranged staggeredly. This can enable the cooling medium to flow back and forth between the outer ring flow channel 13141 and the inner ring flow channel 1314 through the branch flow channels 13143, reducing the flow resistance to a certain extent, and thus improving the heat dissipation effect.

[0087] The barrier member 1315 located in the outer circulation channel 13141 is located between two adjacent branch channels 13143, which can block the cooling medium from passing through and cause the cooling medium to enter the inner circulation channel 13142 along the branch channel 13143. Then, the barrier member 1315 in the inner circulation channel 13142 blocks it, and the cooling medium enters the outer circulation channel 13141 through the other branch channel 13143. This cycle enables the cooling medium to sequentially pass through the channels 1314 in the circumferential direction to achieve the flow of the cooling medium.

[0088] Continue to refer to Figure 6 , the outer circulation channel 13141 extends outward to form adjacent inlet and outlet sections 1316. The inlet and outlet sections 1316 are separated by a partition 13163 to form an adjacent inlet part 13161 and an outlet part 13162. The inlet part 13161 and the outlet part 13162 are blocked by the partition 13163. In this way, the cooling medium introduced from the inlet part 13161 can only pass through the channels 1314 counterclockwise and then be led out from the outlet part 13162. Since the inlet part 13161 and the outlet part 13162 are adjacent and concentrated, the cooling contact area of the channels 1314 is increased, improving the cooling performance.

[0089] The cooling structure 1300e of the fifth embodiment can be applied to axial magnetic field motors with single rotor and single stator, and single rotor and double stator.

[0090] Sixth embodiment

[0091] As Figure 7 shown, the cooling structure 1300f of the sixth embodiment is different from the cooling structure of the fifth embodiment in that the branch 13323 of the stator opposing plate 1332 protrudes outward to form a heat exchange member 1350. When the branch 13323 abuts on the coil assembly 1200, the heat exchange member 1350 can be embedded between two adjacent coil assemblies 1200 to increase the heat exchange area and further improve the heat exchange capacity. Refer to Figure 13 .

[0092] Seventh embodiment

[0093] As Figures 8 to 12As shown, the cooling structure 1300g of the seventh embodiment is different from the cooling structure of the fifth embodiment in that the number of the stator opposing plates 1332 and the rotor opposing plates 1331 is two each. Each stator opposing plate 1332 and one rotor opposing plate 1331 form a cooling disk 1310. It can be seen that the cooling structure 1300g of the seventh embodiment has two cooling disks 1310. At the same time, the cooling structure 1300g also has a stator opposing plate 1332 connecting the two cooling disks 1310, so that the rotor opposing plates 1311 of the two cooling disks 1310 are external, and the stator sleeve holes 1313 of the two cooling disks 1310 correspond to each other one by one.

[0094] The cooling structure 1300g of the seventh embodiment can be applied to an axial magnetic field motor with a double rotor and a single stator. The stator can be sleeved outside the connecting pipe 1320 and is disposed between the two cooling disks 1310. At this time, the two axial sides of the stator respectively correspond to the stator opposing plates 1332 of the two cooling disks 1310 on both sides, and the two rotors correspond to the rotor opposing plates 1331 of each cooling disk 1310.

[0095] Similar to the fifth embodiment, for the cooling structure 1300g of the seventh embodiment, independent introduction and extraction of the cooling medium can be performed for each cooling disk 1310. Of course, the cooling medium flows back and forth between the two cooling disks 1310 through the connecting pipe 1320 to increase the contact area between the cooling medium and the stator and improve the cooling performance. Refer to Figures 10 to 12 , a number of blocking members 1315 are respectively disposed in the outer circulation channel 13141 and the inner circulation channel 13142, and the blocking members 1315 located in the outer circulation channel 13141 and the inner circulation channel 13142 are arranged oppositely to divide the flow channel 1314 into a number of circumferentially arranged chambers 13140. The chambers 13140 of the two cooling disks 1310 are arranged offset in the circumferential direction and are communicated through the connecting pipe 1320, so that the cooling medium sequentially passes back and forth through the chambers 13140 of the two cooling disks 1310.

[0096] Specifically, the connecting pipe 1320 is circumferentially divided into a number of pipe portions 1322. Refer to Figure 12, since the chambers 13140 of the two cooling discs 1310 are arranged circumferentially offset, the chambers 13140 of one cooling disc 1310 are respectively connected to the two pipe portions 1322 to correspondingly connect the two chambers 13140 of the other cooling disc 1340. In this way, the cooling medium flows back and forth in the chambers 13140 of the two cooling discs 1310 in sequence through the pipe portions 1322. And since the stator is sleeved outside the connecting pipe 1320, heat transfer can also be carried out inside the stator through the pipe portions 1322.

[0097] As Figure 10 and Figure 11 shown, the connecting pipe 1320 is connected to the inner circulation channel 13142 to form corresponding inlets 13144 and outlets 13145 on the inner circulation channels 13142 of the two cooling discs 1310 respectively, and they are located on the same inner circulation channel 13142, and the adjacent inlets 13144 and outlets 13145 are blocked.

[0098] Furthermore, the inlets 13144 and outlets 13145 respectively correspond to the two ends of the pipe portion 1322. Referring to Figure 12 , that is, the cooling medium located in the outer circulation channel 13141 flows through the branch channel 13143 to the inner circulation channel 13142, then enters the pipe portion 1322 through the outlet 13145 thereon, and then enters the chamber 13140 of the other cooling disc 1310, specifically entering from the inlet 13144 of the inner circulation channel 13142 of this chamber 13140, and then flowing through the branch channel 13143 to the outer circulation channel 13141. In this way, the cooling medium flows back and forth in the chambers 13140 of the two cooling discs 1310 in sequence through the pipe portion 1322.

[0099] Further, the inlet 13144 and the outlet 13145 located on the same inner circulation channel 13142 are arranged at intervals, and a baffle 1317 for blocking is provided between the adjacent inlet 13144 and outlet 13145. Each of the chambers 13140 corresponds to an inlet 13144 and an outlet 13145 respectively, and the inlet 13144 and the outlet 13145 respectively correspond to two chambers 13140 of another cooling disk 1310. A baffle 1317 is provided between the inlet 13144 and the outlet 13145 to prevent the cooling medium from directly passing through the inlet 13144 and the outlet 13145 without flowing on the outer circulation channel 13141 and the branch channel 13143, thus affecting the cooling performance. Specifically, due to the blocking of the baffle 1317, the cooling medium introduced from the inlet 13144 can only flow to the outer circulation channel 13141 through the branch channel 13143, and then flow to the outlet 13145 through another branch channel 13143, so that the cooling medium can flow on the outer circulation channel 13141, the inner circulation channel 13142 and the branch channel 13143.

[0100] As Figures 8 to 12 shown, the outer circulation channel 13141 of the cooling disk 1310 extends outward to form an inlet / outlet section 1316. The inlet / outlet section 1316 of one cooling disk 1310 is used for leading out the cooling medium, and the inlet / outlet section 1316 of another cooling disk 1310 is used for introducing the cooling medium.

[0101] It should be noted that the inlet / outlet section 1316 for introducing the cooling medium is connected to the chamber 13140 of the cooling disk 1310, then the inlet 13144 of this chamber 13140 is removed, that is, the inlet 13144 of this chamber 13140 is replaced by the inlet / outlet section 1316 for introducing the cooling medium. Similarly, if the inlet / outlet section 1316 for leading out the cooling medium is connected to the chamber 13140 of the cooling disk 1310, the outlet 13145 of this chamber 13140 is removed.

[0102] As Figure 9 shown, the connecting pipe 1320 is divided into two pipe bodies 1321 from the middle, and each pipe body 1321 respectively corresponds to and connects one cooling disk 1310. In this way, the two cooling disks 1310 respectively pass through the pipe bodies 1321 and are inserted from both ends of the stator, which is convenient for assembly. The two pipe bodies 1321 can be connected by means of snap connection, socket connection, etc., and even a sealing structure such as a sealing ring can be added to improve the sealing performance and prevent the leakage of the cooling medium.

[0103] Eighth Embodiment

[0104] The cooling structure of the eighth embodiment, wherein the housing 1330 is formed by co-injecting the heat-conducting material and the strength material.

[0105] The heat-conducting material and the strength material can be mixed in a certain proportion and formed by injection molding through a mold, so as to meet the requirements of strength and heat conductivity at the same time. At this time, the reinforcing ribs 1340 and the heat exchange member 1350 can be correspondingly arranged on the inner / outer surface of the housing 1330, and the positions of the reinforcing ribs 1340 and the heat exchange member 1350 can be set as required.

[0106] In summary, the housing 1330 of the cooling structures 1300a - 1300g is formed by combining a heat-conducting material and a strength material, so that the cooling structures 1300a - 1300g meet the requirements of strength and heat conductivity at the same time, ensuring the stability and reliability of the cooling structures 1300a - 1300g. And by introducing a cooling medium into the flow channel 1314 inside the housing 1330, the component to be cooled is effectively cooled. And the outer surface of the housing where the heat-conducting material is located forms a heat exchange surface, and the heat exchange surface directly contacts the component to be cooled, so that the component to be cooled and the cooling medium can effectively exchange heat, improving the heat exchange performance while ensuring the strength of the cooling structures 1300a - 1300g, and thus achieving efficient cooling. In addition, the heat-conducting material and the strength material of the cooling structures 1300a - 1300g can be non-metallic or metallic materials to increase the scope of use. Furthermore, the housing 1300 can be formed by splicing the rigid heat-conducting member 13301 and the strength member 13302, or by co-injecting the heat-conducting material and the strength material.

[0107] The present invention also provides a manufacturing method of a cooling structure, and the specific content is as follows:

[0108] Ninth embodiment

[0109] As Figures 1 to 12 shown, the cooling structures 1300a - 1300g include a housing 1330 and a flow channel 1314 formed inside the housing 1330. The manufacturing method includes the following steps:

[0110] Combine a heat-conducting material and a strength material to obtain the housing 1330, and form a heat exchange surface on the outer surface of the housing where the heat-conducting material is located for contacting the component to be cooled.

[0111] By adopting the above method, a cooling structure with the characteristics of both a heat-conducting material and a strength material can be obtained, that is, the requirements of both strength and heat conductivity are satisfied to ensure the stability and reliability of the cooling structure. The manufacturing method of the cooling structure can manufacture the cooling structures of the first to eighth embodiments. For the specific content, reference can be made to the above embodiments and will not be elaborated here.

[0112] The method includes:

[0113] Providing at least one heat-conducting member 13301 composed of the heat-conducting material, and at least one strength member 13302 composed of the strength material;

[0114] Through an injection molding process, the heat-conducting member 13301 and the strength member 13302 are combined to obtain the housing 1330.

[0115] Specifically, the heat-conducting member 13301 can be first processed and formed, then placed in an injection mold, and then the strength material is placed into the injection mold to integrally injection mold the strength member 13302 connected to the heat-conducting member 13301.

[0116] Further, the housing 1330 further includes a plurality of reinforcing ribs 1340. The reinforcing ribs 1340 are disposed on the inner surface and / or outer surface of the heat-conducting member 13301. The method includes:

[0117] Manufacturing the strength member 13302 with the reinforcing ribs 1340;

[0118] The side of the strength member 13302 with the reinforcing ribs 1340 is injection molded onto the heat-conducting member 13301 so that the reinforcing ribs 1310 are disposed on the inner surface and / or outer surface of the heat-conducting member 13301.

[0119] In addition, the method includes:

[0120] Mixing the heat-conducting material and the strength material, and integrally injection molding the mixed heat-conducting material and strength material through a mold to obtain the housing 1330.

[0121] Such as Figure 13 and Figure 33As shown, the axial magnetic field motor includes at least one of the cooling structures 1300a - 1300g of the above embodiments. The axial magnetic field motor further includes at least one stator 1000a - 1000e and at least one rotor 2000. The stators 1000a - 1000e and the rotor 2000 are arranged at intervals along the axis to generate an air gap between the stators 1000a - 1000e and the rotor 2000. The cooling structures 1300a - 1300g are sleeved on the stators 1000a - 1000e.

[0122] Since the axial magnetic field motor adopts the cooling structures 1300a - 1300g of the above embodiments, the beneficial effects of the axial magnetic field motor can refer to the cooling structures 1300a - 1300g of the above embodiments. According to the different numbers of the stators 1000a - 1000e and the rotor 2000, the axial magnetic field motor can be divided into single - rotor single - stator motors, single - rotor double - stator motors, double - rotor single - stator motors, etc. The following will be introduced in detail through six embodiments:

[0123] Tenth Embodiment

[0124] As Figures 13 to 19 shown, the axial magnetic field motor includes two stators 1000a, one rotor 2000, and two cooling structures 1300e of the fifth embodiment. At this time, the rotor 2000 is held in the air gap between the two stators 1000a, so that the axial magnetic field motor forms a single - rotor double - stator motor.

[0125] Specifically, the stator 1000a includes a stator core 1100a and a plurality of coil assemblies 1200. The stator core 1100a includes a yoke plate 1110 and a plurality of tooth blocks 1120. The plurality of tooth blocks 1120 are circumferentially spaced on the yoke plate 1110. Each tooth block 1120 is sleeved with a coil assembly 1200. The cooling structure 1300e is sleeved on the stator core 1100a in a one - to - one correspondence between the stator sleeve holes 1313 and the tooth blocks 1120. And the stator relative plate 1332 of the cooling structure 1300e faces the yoke plate 1110, while the rotor relative plate 1331 faces the rotor 2000, so that the heat of the rotor 2000 is transferred to the cooling structure 1300e through the air gap, and the cooling structure 1300e realizes heat transfer for temperature reduction. Refer to Figure 5 .

[0126] Refer to Figure 15 , the yoke plate 1110 is annular, the tooth blocks 1120 extend and connect to the inner and outer edges of the yoke plate 1110, and the tooth blocks 1120 are adapted to the shape of the stator sleeve holes 1313, both being fan - shaped. Refer toFigure 5 。

[0127] Reference Figure 14 The coil assembly 1200 is adapted to the shape of the tooth block 1120 and has a fan-shaped annular structure so as to surround the tooth block 1120. The height of the tooth block 1120 is higher than that of the coil assembly 1200. When the coil assembly 1200 is sleeved on the tooth block 1120, the protruding part of the tooth block 1120 relative to the coil assembly 1200 is correspondingly inserted into the stator sleeve hole 1313 of the cooling structure 1300e, so that the stator relative plate 1332 of the cooling structure 1300e abuts against the coil assembly 1200. At this time, the coil assembly 1200 is located between the yoke plate 1110 and the cooling structure 1300e. Reference Figure 13 。It can be seen that there are corresponding contacts between the tooth block 1120 and the coil assembly 1200 and the cooling structure 1300e respectively, so as to improve the heat dissipation performance of the iron core winding. And the cooling structure 1300e plays a role in preventing the coil from detaching from the stator core 1100a. That is, compared with the prior art, the slot wedge structure is omitted, the number of motor parts is reduced, the cost is reduced, and the assembly efficiency is effectively improved.

[0128] Certainly, the axial magnetic field motor of the tenth embodiment can adopt the cooling structure 1300c of the sixth embodiment. The branch 13323 of the stator relative plate 1332 protrudes outward to form a heat exchange part 1350. The heat exchange part 1350 can be embedded between two adjacent coil assemblies 1200 to increase the heat exchange area and further improve the heat exchange capacity. Reference Figure 13 。

[0129] Reference Figure 16 The coil assembly 1200 includes a coil 1201. An insulating and heat-conducting structure can be arranged between the coil 1201 and the cooling structure 1300e to ensure insulation and heat transfer between the coil 1201 and the cooling structure 1300e. Continue to refer Figure 16 The insulating and heat-conducting structure can also be insulating paper 1202. The insulating paper 1202 is respectively wrapped on both circumferential sides of the coil 1201, which ensures the insulation between the coil 1201 and the cooling structure 1300e and enables the heat of the coil 1201 to be transferred to the cooling structure 1300e through the insulating paper 1202.

[0130] Such as Figure 13 、 Figures 17 to 19As shown, the axial magnetic field motor further includes a housing 3000, which includes two housings 3001. Each housing 3001 includes a bottom plate 3100 and an outer side plate 3200 extending along the outer edge of the bottom plate 3100. One stator 1000a is fixedly provided corresponding to each housing 3001. The stator 1000a is located in the area surrounded by the outer side plate 3200 and is fixed to the bottom plate 3100 through the yoke plate 1110 of the stator core 1100a. The two housings 3001 are fixed with their outer side plates 3200 abutted against each other in a manner that the bottom plate 3100 is on the outside. The yoke plate 1110 can be fixed to the bottom plate 3100 by bolts, so that the cooling structure 1300e is externally disposed relative to the stator 1000a outside the housing 3001. In this way, when the two housings 3001 are fixed with their outer side plates 3200 abutted against each other, there is a cooling structure 1300e between the rotor 2000 and each stator 1000a, enabling the two sides of the rotor 2000 to contact different cooling structures 1300e, thereby improving the heat dissipation performance. The two housings 3001 can be fixed by bolts or other means, which is not limited herein.

[0131] The outer circulation channel 13141 extends outward to form adjacent inlet and outlet sections 1316. The inlet and outlet sections 1316 are separated by a partition 13163 to form an adjacent inlet part 13161 and an outlet part 13162. A bayonet 3201 through which the inlet and outlet sections 1316 pass is provided on the outer side plate 3200. The function of the bayonet 3201 is not only to lead out the inlet and outlet sections 1316, but also to pre-fix the cooling structure 1300e to ensure reliable stability after assembly.

[0132] The housing 3000 further includes an inner side plate 3300 and the support block 3400. The inner side plate 3300 is sleeved inside the stator 1000a, and the support block 3400 is arranged on the inner wall of the outer side plate 3200. The cooling structure 1300e is supported and fixed on the inner side plate 3200 and / or the support block 3400. Refer to Figure 13 , the stator 1000a is located between the inner side plate 3300 and the outer side plate 3200. The cooling structure 1300e can be abutted against the inner side plate 3200 and / or the support block 3400 and locked by bolts. Refer to Figure 5 , the cooling structure 1300e is provided with mounting holes 1318 through which bolts pass. The mounting holes 1318 are specifically located at the positions corresponding to the outer circulation channel 13141 and the inner circulation channel 13142, that is, the outer circulation channel 13141 abuts against a plurality of support blocks 3400 arranged at circumferential intervals, and the inner circulation channel 13142 abuts against the inner side plate 3200.

[0133] As Figure 19 shown, a plurality of the support blocks 3400 are spaced apart and arranged on the inner wall of the outer side plate 3200. Of course, the plurality of the support blocks 3400 can be sequentially connected to form a continuous annular structure to ensure the stability of the fixation of the cooling structure 1300e.

[0134] The Eleventh Embodiment

[0135] As Figures 20 to 22 shown, the axial magnetic field motor of the eleventh embodiment is different from the tenth embodiment in that the stator 1000b includes a stator core 1100b having a plurality of tooth blocks 1120. Concave portions 1121 are respectively formed by inward depressions on both circumferential sides of the tooth blocks 1120. The coil assembly 1200 is embedded in the concave portions 1121. The cooling structure 1300e is clamped between two adjacent coil assemblies 1200, so that the stator opposing plate 1332 of the cooling structure 1300e abuts against the yoke plate 1110. The contact area between the cooling structure 1300e and the stator core 1100b and the coil assembly 1200 is further increased, thereby further improving the heat dissipation performance.

[0136] Referring Figure 21 to, the concave portion 1121 extends from the connection position of the tooth block 1120 and the yoke plate 1110 along the height direction of the tooth block 1120, wherein the extension height of the concave portion 1121 is less than the height of the tooth block 1120. In this way, when the cooling structure 1300e is clamped between two adjacent coil assemblies 1200, the tooth block 1120 can also contact the cooling structure 1300e.

[0137] For the coil 1201 of the coil assembly 1200, the insulating and heat-conducting structure between it and the cooling structure 1300e can select a high thermal conductivity alumina thin plate or coating, and the joint surface is filled with thermal conductive silicone grease or thermal conductive adhesive.

[0138] The Twelfth Embodiment

[0139] As Figures 23 to 27As shown, the axial magnetic field motor of the twelfth embodiment is different from the tenth embodiment in that the stator 1000c includes a stator core 1100c. The stator core 1100c includes a plurality of tooth blocks 1120 arranged at circumferential intervals, and a yoke plate 1110. The yoke plate 1110 is connected to the middle positions of the two axial end faces of each of the tooth blocks 1120. A coil assembly 1200 is sleeved on each of the two axial sides of the tooth block 1120, and the coil assembly 1200 abuts against the 1110. In addition, a cooling structure 1300e is sleeved on each of the two axial sides of the stator 1000c. In addition, the number of rotors 2000 of the axial magnetic field motor of the twelfth embodiment is two, and the stator 1000c is held in the air gap between the two rotors 2000, so that the axial magnetic field motor forms a double-rotor single-stator motor.

[0140] Wherein, each rotor 2000 corresponds to a rotor relative plate 1331 of the cooling structure 1300e. The heat of the rotor 2000 is transferred to the corresponding cooling structure 1300e through the air gap, and the cooling structure 1300e realizes heat transfer and temperature reduction.

[0141] As Figure 23 、 Figure 26 and Figure 27 As shown, the housing 3000 includes an outer side plate 3200 and two bottom plates 3100. Bayonet openings 3201 are respectively formed at both ends of the outer side plate 3200. The outer circulation channels 13141 of the cooling structures 1300e extend outwards to form inlet and outlet sections 1316. The two cooling structures 1300e are respectively clamped on the bayonet openings 3201 at both ends of the outer side plate 3200 through the inlet and outlet sections 1316, so that the two integrally connected stators 1000c are fixed between the two cooling structures 1300e, and both ends of the outer side plate 3200 are closed by the bottom plates 3100.

[0142] As Figures 23 to 27 As shown, the housing 3000 further includes an inner side plate 3300 and the support block 3400. The inner side plate 3300 is sleeved inside the stator 1000c. The support block 3400 is arranged on the inner wall of the outer side plate 3200. The cooling structure 1300e is supported and fixed on the inner side plate 3200 and / or the support block 3400. The support block 3400 has a continuous annular structure, so that the two cooling structures 1300e respectively abut against both sides of the support block 3400 and the inner side plate 3200.

[0143] As Figure 27As shown, the axial magnetic field motor further includes a rotating shaft that passes through the centers of the stator 1000c and the inner side plate 3300 and is rotatably arranged inside the housing 3000. For example, both ends of the rotating shaft are rotatably connected to the bottom plate 3100. The rotor 2000 is fixed to the rotating shaft.

[0144] The thirteenth embodiment

[0145] As Figure 28 and Figure 29 shown, the axial magnetic field motor of the thirteenth embodiment is different from the twelfth embodiment in that the stator 1000d includes a stator core 1100d. The stator core 1100d includes a plurality of tooth blocks 1120 arranged at circumferential intervals, and a yoke plate 1110. The yoke plate 1110 is connected to the middle positions of the two axial end faces of each tooth block 1120. A coil assembly 1200 is sleeved on both axial sides of the tooth block 1120, and the coil assembly 1200 is embedded in the recess 1121 of the tooth block 1120, so that the stator opposing plate 1332 of the cooling structure 1300e abuts against the yoke plate 1110. Further increases the contact area between the cooling structure 1300e and the stator core 1100b and the coil assembly 1200 respectively, thereby further improving the heat dissipation performance.

[0146] The fourteenth embodiment

[0147] As Figures 30 to 32 shown, the axial magnetic field motor of the fourteenth embodiment is different from the twelfth embodiment in that the stator core 1100e of the stator 1000e only includes a plurality of tooth blocks 1120 arranged at circumferential intervals and does not have a yoke plate 1110.

[0148] In addition, a plurality of spaced-apart clamping strips 3210 are provided on the inner wall of the outer side plate, so that the tooth blocks 1120 are clamped between two adjacent clamping strips 3210. Refer to Figure 30 and Figure 32 . Specifically, the tooth block 1120 passes between two adjacent clamping strips 3210, and the surface of the tooth block 1120 is smooth. After two cooling structures 1300e are sleeved on the tooth block 1120 and clamped at both ends of the outer side plate, the two coil assemblies 1200 sleeved on the tooth block 1120 can be respectively arranged on both sides of the clamping strip 3210, and each side of the coil assembly 1200 can be positioned between the cooling structure 1300e and the clamping strip 3210. This can not only omit the positioning structure, make the structure more compact, reduce costs, but also improve the reliability and stability of the structure.

[0149] The fifteenth embodiment

[0150] As Figure 33 shown, the axial magnetic field motor of the fifteenth embodiment is different from the fourteenth embodiment in that the cooling structure 1300g of the seventh embodiment is adopted.

[0151] The above-described embodiments are only used to illustrate the technical idea and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The scope of the patent adoption of the present invention cannot be limited only by this embodiment. That is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the scope of the patent of the present invention.

Claims

1. A cooling structure (1300a to 1300g), characterized in that, The cooling structure (1300a - 1300g) includes a housing (1330) and a flow channel (1314) formed inside the housing (1330). The housing (1330) is formed by combining a heat-conducting material and a strength material, and a heat exchange surface is formed on the outer surface of the housing where the heat-conducting material is located for contacting the component to be cooled. The housing (1330) of the cooling structure (1300e, 1300f) includes at least one stator relative plate (1332) and at least one rotor relative plate (1331), and a plurality of stator sleeve holes (1313) penetrating through the rotor relative plate (1331) and the stator relative plate (1332). The flow channel (1314) is formed between the rotor relative plate (1331) and the stator relative plate (1332) and surrounds each of the stator sleeve holes (1313). At least part of the stator relative plate (1332) and / or the rotor relative plate (1331) is composed of the heat-conducting material.

2. The cooling structure (1300a to 1300g) according to claim 1, characterized in that, The housing (1330) is divided into at least one heat-conducting part (13301) composed of the heat-conducting material and at least one strength part (13302) composed of the strength material. The heat-conducting part (13301) and the strength part (13302) are spliced to form the housing (1330).

3. The cooling structure (1300a to 1300g) according to claim 1, characterized in that, The housing (1330) is formed by mixing and injecting the heat-conducting material and the strength material.

4. The cooling structure (1300a to 1300g) according to claim 1, wherein It further includes at least one reinforcing rib (1340), and the reinforcing rib (1340) is arranged on the outer surface and / or the inner surface of the housing where the heat-conducting material is located. And / or, it further includes at least one heat exchange part (1350) composed of the heat-conducting material. The outer surface and / or the inner surface of the housing where the heat-conducting material is located protrudes to form the heat exchange part (1350), and the heat exchange part (1350) located on the outer surface of the housing can be embedded inside the component to be cooled.

5. An axial magnetic field motor, characterized in that, It includes at least one cooling structure (1300a - 1300g) as described in any one of claims 1 to 4. The axial magnetic field motor further includes at least one stator (1000a - 1000e) and at least one rotor (2000). The stator (1000a - 1000e) and the rotor (2000) are arranged at intervals along the axis to generate an air gap between the stator (1000a - 1000e) and the rotor (2000). The cooling structure (1300a - 1300g) is sleeved on the stator (1000a - 1000e).

6. A manufacturing method of a cooling structure, the cooling structure (1300a to 1300g) includes a housing (1330), and a flow passage (1314) formed inside the housing (1330), characterized in that, The manufacturing method includes the following steps: Combining the heat-conducting material and the strength material to obtain the housing (1330), and forming a heat exchange surface on the outer surface of the housing where the heat-conducting material is located for contacting the component to be cooled. The method includes: Providing at least one heat-conducting part (13301) composed of the heat-conducting material and at least one strength part (13302) composed of the strength material. Injecting and combining the heat-conducting part (13301) and the strength part (13302) through a mold to obtain the housing (1330). The housing (1330) further includes a plurality of reinforcing ribs (1340), and the reinforcing ribs (1340) are disposed on the inner surface and / or the outer surface of the heat conducting member (13301). The method includes: Manufacturing the strength member (13302) with the reinforcing ribs (1340); Injection molding and bonding the side of the strength member (13302) with the reinforcing ribs (1340) to the heat conducting member (13301), so that the reinforcing ribs (1310) are disposed on the inner surface and / or the outer surface of the heat conducting member (13301).

7. The manufacturing method according to claim 6, characterized in that, The method includes: Mixing the heat conducting material and the strength material, and integrally injection molding the mixed heat conducting material and strength material through a mold to manufacture the housing (1330).

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