Motor

Abstract

The utility model discloses a motor, comprising a housing comprising a middle ring, a junction box and a first fixing plate, the junction box being connected with the middle ring; the second fixing plate is arranged along the axial direction of the motor, and the second fixing plate and the first fixing plate are respectively arranged on two opposite sides of the middle ring; the first fixing plate and the second fixing plate are provided with the cooling channels; the water gap module is respectively connected with the first fixing plate and the second fixing plate, and the water gap module is communicated with the cooling channel to form a cooling loop; wherein the cooling channel is provided with a water inlet hole and a water outlet hole, the water gap module is provided with a water inlet and a water outlet, the water inlet is communicated with the water inlet hole, and the water outlet is communicated with the water outlet hole. The integral structure of the motor can be simplified, the assembly is simple, and the efficiency is high.

Description

Technical Field

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

[0002] In existing motors (such as new energy axial permanent magnet motors), the cooling water inlet of the stator mounting plate is located in a fixed position. However, with increasing personalized requirements regarding the different relative positions between the motor's junction box and the water inlet, the current common solution is to change the position of the junction box while keeping the water inlet position unchanged.

[0003] However, this solution, which involves changing the location of the junction box, has a large number of components for the motor as a whole, and the front and rear mounting plates are independent of each other, as are the cooling water channels within them. Therefore, this solution results in high component costs, difficult assembly, low efficiency, and significant sealing challenges. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problems of complex motor structure, numerous parts, and difficult assembly. This invention provides a motor that simplifies the overall structure, makes assembly simple, and increases efficiency.

[0005] To solve the above-mentioned technical problems, the present invention discloses a motor comprising: a housing including a middle ring, a junction box, and a first fixing plate, the junction box being connected to the middle ring; a second fixing plate along the axial direction of the motor, the second fixing plate and the first fixing plate being respectively disposed on opposite sides of the middle ring; a cooling channel, both the first fixing plate and the second fixing plate being provided with the cooling channel; and a water inlet module, respectively connected to the first fixing plate and the second fixing plate, the water inlet module being connected to the cooling channel and forming a cooling circuit; wherein, the cooling channel has a water inlet hole and a water outlet hole, the water inlet module has a water inlet and a water outlet hole, the water inlet being connected to the water inlet hole, and the water outlet being connected to the water outlet hole.

[0006] By adopting the above technical solution, the embodiments of this application combine the water circuits of the first and second fixed plates of the motor through a water inlet module. That is, the cooling channels of both fixed plates are connected to the outside through this water inlet module, allowing external coolant to flow in and out through the inlet and outlet of the water inlet module, circulating and cooling within the two cooling circuits. Furthermore, the overall structure of the motor in the embodiments of this application is simplified, the number of parts is reduced, and assembly is simpler.

[0007] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a motor in which the middle ring, the junction box and the first fixing plate are integrally formed.

[0008] By adopting the above technical solution, the embodiment of this application integrates the motor's middle ring, junction box, and second fixing plate into a housing, and integrates the three components (i.e., the middle ring, junction box, and second fixing plate) into one component (i.e., the housing) to simplify the overall structure of the motor, optimize the number of parts, and improve the overall strength of the motor.

[0009] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a motor, wherein the water inlet module includes a water inlet housing, the water inlet housing is provided with an inlet channel and an outlet channel, the inlet channel and the outlet channel are spaced apart along the circumferential direction, the water inlet includes a first water inlet and a second water inlet, the first water inlet and the second water inlet are respectively provided on opposite sides of the water inlet housing along the radial direction, and both the first water inlet and the second water inlet are connected to the inlet channel; the water outlet includes a first water outlet and a second water outlet, the first water outlet and the second water outlet are respectively provided on opposite sides of the water inlet housing along the radial direction, and both the first water outlet and the second water outlet are connected to the outlet channel.

[0010] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a motor, wherein the water inlet includes a first water inlet and a second water inlet, and the water outlet includes a first water outlet and a second water outlet. The first water inlet and the first water outlet are both disposed on the first fixed plate, and the second water inlet and the second water outlet are both disposed on the second fixed plate. The first water inlet is respectively disposed at both ends of the water inlet channel and is correspondingly connected to the first water inlet and the second water inlet. The first water outlet is respectively disposed at both ends of the water outlet channel and is correspondingly connected to the first water outlet and the second water outlet.

[0011] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an electric motor, wherein the water inlet housing further includes a protrusion, the protrusion being provided on the side of the water inlet housing away from the middle ring, and the second water inlet and the second water outlet are both provided on the protrusion.

[0012] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an electric motor, wherein the water inlet housing further includes a sealing element, the sealing element being provided between the first water inlet and the first water inlet hole and the second water inlet hole, and the sealing element being provided between the first water outlet and the first water outlet hole and the second water outlet hole.

[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an electric motor, the electric motor further including a water inlet mounting part having a fixing part, the water inlet housing including a fixing hole corresponding to the fixing part, the fixing part being connected to the fixing hole so that the water inlet housing is fixedly connected to the water inlet mounting part.

[0014] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a motor, wherein the water inlet mounting part includes a first part and a second part, the first part is disposed on the housing, the first water inlet and the first water outlet are disposed on the first part, the second part is disposed on the first fixing plate, the second water inlet and the second water outlet are disposed on the second part, and both the first part and the second part are provided with the fixing part.

[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a motor, each of the cooling channels including multiple cooling branches, wherein two adjacent cooling branches are interconnected, and the remaining adjacent cooling branches are provided with partitions to be processed; the junction box is correspondingly located at adjacent positions of the two interconnected adjacent cooling branches, and along the circumferential direction, the water inlet and the water outlet are respectively opened on opposite sides of one of the partitions to be processed, and are respectively connected to the adjacent cooling branches, the water inlet and the water outlet of the water inlet module are respectively connected to the water inlet and the water outlet, and the remaining partitions to be processed are processed so that the remaining adjacent cooling branches are interconnected to form the cooling circuit.

[0016] Using the above technical solution, in this embodiment of the application, the junction box of the motor is fixedly installed at an adjacent position of two adjacent cooling branches that are interconnected. The water inlet module is correspondingly installed at a partition to be processed and is connected to the water inlet and water outlet on opposite sides of the partition to be processed, respectively. After processing and removing the remaining partitions to be processed, the water inlet module and the cooling channel of the fixing plate (e.g., the first fixing plate and the second fixing plate) form a complete cooling circuit. Thus, in this embodiment of the application, when the motor meets the requirements of multiple changes in the junction box and water inlet, only the installation position of the water inlet module needs to be changed. Attached Figure Description

[0017] Figure 1 This diagram shows the structure of the motor according to an embodiment of the present invention;

[0018] Figure 2 An exploded view of the motor according to an embodiment of the present invention is shown. Figure 1 ;

[0019] Figure 3A A schematic diagram of the structure of the water inlet module of the motor according to an embodiment of the present invention is shown. Figure 1;

[0020] Figure 3B A schematic diagram of the structure of the water inlet module of the motor according to an embodiment of the present invention is shown. Figure 2 ;

[0021] Figure 3C A cross-sectional view of the water inlet module of the motor according to an embodiment of the present invention is shown;

[0022] Figure 3D An exploded view of the motor according to an embodiment of the present invention is shown. Figure 2 ;

[0023] Figure 4 A front view of the motor shown in an embodiment of the present invention. Figure 1 The water inlet module corresponds to position B;

[0024] Figure 5 A front view of the motor shown in an embodiment of the present invention. Figure 2 The water inlet module corresponds to position A;

[0025] Figure 6 The third front view of the motor according to an embodiment of the present invention is shown, wherein the water inlet module corresponds to position C;

[0026] Figure 7 A front view of the motor shown in an embodiment of the present invention. Figure 4 The water inlet module corresponds to position D. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0028] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0030] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] Figure 1 A perspective view of the motor provided in an embodiment of this application is shown.

[0034] refer to Figure 1 The motor 1 in this embodiment includes a housing 10, a junction box 20, and a fixing plate.

[0035] Specifically, such as Figure 1 As shown, along the axial direction of motor 1 (e.g.) Figure 1 As shown in the Z-direction, two fixing plates (one shown in the figure) are located on opposite sides of the motor 1, and together with the middle ring 11 of the housing 10, define a receiving space 12 for accommodating internal components of the motor 1, such as the stator core (not shown in the figure). Figure 2 As shown, the junction box 20 is connected to the middle ring 11 of the housing 10. The junction box 20 has an opening 21 communicating with the receiving space 12, so that external cables (not shown) can extend into the interior of the motor 1 (i.e., the receiving space 12) through the opening 21 of the junction box 20. Each mounting plate is provided with a cooling channel 31. Exemplarily, the cooling channel 31 is along the circumference of the motor 1 (e.g.,...). Figure 1 (As shown in the R direction), it extends around the pivot hole 32 on the fixing plate.

[0036] The two fixing plates have the same structure. For ease of explanation, the two fixing plates in this embodiment will be referred to as the second fixing plate 302 and the first fixing plate 301 (e.g., ...). Figure 2 The explanation is shown below.

[0037] It is understood that the structure illustrated in the embodiments of this application does not constitute a specific limitation on motor 1. In other embodiments of this application, motor 1 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. For example, motor 1 may also include components such as rotor, stator core, and windings.

[0038] For the cooling water circuit of the fixed plate of the motor (such as the new energy axial permanent magnet motor), the position of the water inlet of the cooling water circuit in the existing motor is fixed. In order to meet the personalized needs of various changes in the relative position of the junction box and the water inlet, the position of the junction box on the motor housing is often adjusted.

[0039] However, in the aforementioned solutions with various junction box and inlet variations, the two stator assemblies of the motor each have independent water inlets (e.g., inlet and outlet). In other words, each stator assembly has its own independent water path. To achieve these independent water paths, this solution requires more components, increasing the overall component cost, reducing assembly efficiency, and adding to the assembly difficulty. Furthermore, since each stator assembly has its own independent water path, both paths need to be sealed separately, increasing the sealing difficulty and the risk of leakage in the stator assembly's water path.

[0040] To meet the personalized needs of various changes in the junction box and water inlet, and to optimize the overall structure of the motor and reduce the number of parts, this application provides a motor 1, wherein the junction box 20 of the motor 1 is fixed in position, and only the position of the water inlet needs to be changed to meet the needs of various changes in the junction box 20 and water inlet.

[0041] The structure of the motor in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] refer to Figure 2The housing 10 of the motor 1 in this embodiment includes a middle ring 11, a junction box 20, and a first fixing plate 301. The middle ring 11 is connected to the first fixing plate 301, and the junction box 20 is connected to the middle ring 11 and communicates with the accommodating space 12 defined by the middle ring 11, the first fixing plate 301, and the second fixing plate 302. In other words, this embodiment integrates the middle ring 11, the junction box 20, and the first fixing plate 301 of the motor 1 into a housing 10, integrating the three components (i.e., the middle ring 11, the junction box 20, and the first fixing plate 301) into one component (i.e., the housing 10) to simplify the overall structure of the motor 1, optimize the number of parts, improve the overall strength of the motor 1, and fix the junction box 20 to the middle ring 11, that is, fix the position of the junction box 20.

[0043] For example, in this application embodiment, the middle ring 11, junction box 20 and first fixing plate 301 are integrally formed to form housing 10. However, this application embodiment does not limit the formation method of housing 10. For example, housing 10 can also be formed by welding the middle ring 11, junction box 20 and first fixing plate 301 together.

[0044] Continue to refer to Figure 1 and combined Figure 2 The motor 1 provided in this embodiment further includes a sprue module 40, which is connected to the middle ring 11 of the housing 10 and communicates with the cooling channels 31 of the second fixing plate 302 and the first fixing plate 301 respectively, to form a cooling channel 31 located in the axial direction of the motor 1 (e.g., ...). Figure 1 Cooling circuits on both sides (shown in the Z direction).

[0045] It is understood that the structure of the second fixing plate 302 in this embodiment is the same as that of the first fixing plate 301. In other words, the structure of the cooling channel 31 in the second fixing plate 302 is also the same as that in the first fixing plate 301. For ease of explanation, the following description uses the second fixing plate 302 as an example.

[0046] Specifically, such as Figure 1 and Figure 2 As shown, the water inlet module 40 is connected to the housing 10 and the second fixing plate 302 respectively. The water inlet module 40 has a water inlet 41 and a water outlet 42, and the cooling channel 31 has a water inlet hole 311 and a water outlet hole 312. Along the radial direction of the motor 1 (e.g., Figure 1 and Figure 2(As shown in the X direction), the water inlet 311 of the cooling channel 31 is connected to the water inlet 41 of the water inlet module 40, and the water outlet 312 of the cooling channel 31 is connected to the water outlet 42 of the water inlet module 40, so that the coolant can enter the cooling channel 31 from the water inlet 41 of the water inlet module 40 through the water inlet 311 of the cooling channel 31, flow through the cooling channel 31 and then through the water outlet 312 of the cooling channel 31, and flow out from the water outlet 42 of the water inlet module 40, forming a complete cooling circuit to cool the stator assembly (not shown in the figure) of the motor 1.

[0047] Therefore, in this embodiment, the water channels of the two fixing plates (i.e., the first fixing plate 301 and the second fixing plate 302) of the motor 1 are merged through the water inlet module 40. That is, the cooling channels 31 of both fixing plates are connected to the outside through the water inlet module 40, allowing external coolant to flow in and out through the inlet 41 and outlet 42 of the water inlet module 40, thus circulating and cooling within the two cooling circuits. Furthermore, the overall structure of the motor 1 in this embodiment is simplified, the number of parts is reduced, and assembly is simpler.

[0048] The structure of the sprue module of this application embodiment will be described in detail below with reference to the accompanying drawings.

[0049] Figure 3A This diagram shows a structural schematic of the sprue module according to an embodiment of this application. Figure 3B This is a schematic diagram of the sprue module from another perspective, according to an embodiment of this application. Figure 3C This illustration shows a cross-sectional view of the sprue module according to an embodiment of this application. Figure 3D An exploded view of the motor according to an embodiment of this application is shown.

[0050] refer to Figures 3A to 3D The water inlet module 40 of this application embodiment includes a water inlet housing 43. The water inlet housing 43 is installed on the housing 10 and the second fixing plate 302, and the water inlet housing 43 is provided with an inlet channel 441 and an outlet channel 442, which are respectively connected to the inlet 41 and the outlet 42 of the water inlet module 40.

[0051] Specifically, along the radial direction of motor 1 (e.g.) Figures 3A to 3C As shown in the X direction), the inlet 41 and outlet 42 of the water inlet module 40 are respectively located on opposite sides of the water inlet housing 43, and the inlet 41 and outlet 42 of the water inlet housing 43 near the middle ring 11 are both along the axial direction of the motor 1 (as shown in the X direction). Figures 3A to 3C (As shown in the Z direction) Interval settings.

[0052] For ease of explanation, the inlet 41 and outlet 42 located on the side 43a of the sprue housing 43 near the middle ring 11 are referred to as the first inlet 411 and the first outlet 421, the inlet 41 and outlet 42 located on the side 43b of the sprue housing 43 away from the middle ring 11 are referred to as the second inlet 412 and the second outlet 422, the inlet hole 311 and outlet hole 312 of the cooling channel 31 of the first fixing plate 301 are referred to as the first inlet hole 3111 and the first outlet hole 3121, and the inlet hole 311 and outlet hole 312 of the cooling channel 31 of the second fixing plate 302 are referred to as the second inlet hole 3112 and the first outlet hole 3122.

[0053] like Figure 3C As shown, the water inlet channel 441 extends along the axial direction Z. Two first water inlets 411 are spaced apart at both ends of the water inlet channel 441 along the axial direction Z, and are opposite to and connected to the water inlets of the cooling channels located on both sides of the axial direction Z (not shown in the figure, i.e., the first water inlet 3111 and the second water inlet 3112). A second water inlet 412 is located in the middle of the water inlet channel 441 to allow external coolant to flow into the water inlet channel 441 through the second water inlet 412, and to allow coolant to flow into the cooling channels located on both sides of the axial direction Z through the two first water inlets 411 respectively.

[0054] Correspondingly, the water outlet channel 442 extends along the axial direction Z, and two first water outlets 421 are spaced apart at both ends of the water outlet channel 442 along the axial direction Z. They are opposite to and connected to the water outlet holes (not shown in the figure, i.e., the first water outlet hole 3121 and the second water outlet hole 3122) of the cooling channels located on both sides of the axial direction Z. A second water outlet 422 is located in the middle of the water outlet channel 442, so that the coolant in the cooling channels on both sides of the axial direction Z can flow into the water outlet channel 442 through the two first water outlets 421 respectively, and be discharged through the second water outlet 422.

[0055] Continue to refer to Figure 3A and Figure 3C In this embodiment, the sprue housing 43 further has a protrusion 433, which protrudes from the side 43b of the sprue housing 43 away from the middle ring 11, along the circumferential direction of the motor 1 (e.g., Figure 3A and Figure 3C (As shown in the middle R direction), the second inlet 412 and the second outlet 422 are spaced apart in the protrusion 433 and are respectively connected to the inlet channel 441 and the outlet channel 442.

[0056] For example, in this embodiment of the application, both the inlet 41 and the outlet 42 are circular through holes extending radially X. However, this is not a limitation. The structure of the inlet 41 and the outlet 42 is not limited in this embodiment of the application, as long as they can allow external coolant to flow in or out. For example, the inlet 41 and the outlet 42 in this embodiment of the application can also be square through holes.

[0057] refer to Figure 3B and combined Figure 3D The motor 1 in this embodiment of the application also includes a water inlet mounting part 13, and the water inlet module 40 in this embodiment of the application also includes a plurality of sealing elements 45.

[0058] Specifically, such as Figure 3B and Figure 3D As shown, the sprue mounting portion 13 includes a first portion 131 and a second portion 132. The first portion 131 is disposed on the housing 10, and a first water inlet 3111 and a first water outlet 3121 are disposed on the first portion 131. The second portion 132 is disposed on the second fixing plate 302, and a second water inlet 3112 and a second water outlet 3122 are disposed on the second portion 132. Thus, the sprue module 40 of this embodiment is mounted on the sprue mounting portion 13, so that the first water inlet 411 of the sprue module 40 is correspondingly connected to the first water inlet 3111 and the second water inlet 3112, respectively, and the first water outlet 421 is correspondingly connected to the first water outlet 3121 and the second water outlet 3122, respectively.

[0059] Furthermore, the four seals 45 of the sprue module 40 are all located on the side 43b of the sprue housing 43 near the middle ring 11. In other words, the four seals 45 are respectively located between the two first inlets 411 and the first inlet hole 311 and the second inlet hole, and between the two first outlets 421 and the first outlet hole 312 and the second outlet hole, thereby sealing the sprue module 40.

[0060] like Figure 3A and Figure 3DAs shown, the sprue mounting part 13 is provided with four fixing parts 133, and the sprue housing 43 is provided with four fixing holes 434 corresponding to the fixing parts 133. Exemplarily, the sprue mounting part 13 of this application embodiment has a plane 134 for mounting the sprue housing 43. The sprue housing 43 is mounted on the plane 134 so that the first inlet 411 of the sprue module 40 is respectively connected to the first inlet hole 3111 of the first fixing plate 301 and the second inlet hole 3112 of the second fixing plate 302, and the first outlet 421 of the sprue module 40 is respectively connected to the first outlet hole 3121 of the first fixing plate 301 and the second outlet hole 3122 of the second fixing plate 302. Furthermore, the fixing part 133 is a threaded groove, and the fixing hole 434 is a threaded hole. The sprue housing 43 is threadedly connected to the fixing part 133 of the sprue mounting part 13 through the threaded hole 434. However, it is not limited to this. As long as the sprue housing 43 can be installed on the sprue mounting part 13, it is acceptable. For example, the sprue housing 43 can also be snapped onto the sprue mounting part 13.

[0061] In the above embodiments, the present application embodiment realizes the merging of two water channels (i.e., the two cooling channels 31 of the second fixing plate 302 and the first fixing plate 301) through the water inlet module 40, and integrates the middle ring 11, the first fixing plate 301 and the junction box 20 into the housing 10, fixing the position of the junction box 20 on the housing 10 of the motor 1.

[0062] It is understandable that the existing motor's junction box and water inlet have multiple variations, requiring changes to the junction box's installation position according to individual needs. This makes the existing motor's structure complex, with many parts, resulting in lower overall structural strength, more complex assembly, and increased sealing difficulty, requiring sealing at multiple locations. Compared to the existing motor, in this embodiment, the junction box's installation position relative to the housing 10 remains fixed. Therefore, when the motor in this embodiment meets the requirements for multiple variations of the junction box and water inlet, only the installation position of the water inlet module 40 needs to be changed. The structure of the cooling channel in this embodiment will be described in detail below with reference to the accompanying drawings.

[0063] refer to Figure 4 The cooling channel 31 of the second fixing plate 302 in this embodiment includes five cooling branches 313.

[0064] For example, such as Figure 4As shown, the five cooling branches 313 in this embodiment include five adjacent positions of cooling branches 313. The junction box 20 in this embodiment is connected to the middle ring 11 of the housing 10, corresponding to an adjacent position of one of the cooling branches 313, and the two adjacent cooling branches 313 at this adjacent position (e.g., position O described later) are interconnected. However, this is not a limitation. The number of cooling branches 313 in the cooling channel 31 is not limited in this embodiment. For example, it may include two, three, four, six, seven or more.

[0065] Furthermore, this embodiment of the application does not limit the adjacent positions of the cooling branch 313 corresponding to the junction box 20. For ease of explanation, the adjacent positions of the cooling branch 313 corresponding to the junction box 20 are referred to as position O, and the adjacent positions of the other cooling branches 313 are referred to as positions A, B, C and D in counterclockwise order for the following explanation.

[0066] It is understood that in order to meet the requirements of various changes in junction box 20 and water inlet, the five cooling branches 313 of the cooling channel 31 in this embodiment of the application are provided with partitions 3136 to be processed at positions A, B, C and D. Therefore, it is only necessary to select the installation position of water inlet module 40 (e.g., position A, position B, position C or position D) according to the relative position of water inlet module 40 and junction box 20.

[0067] Continue to refer to Figure 4 In this embodiment of the application, the first water inlet 3111 and the first water outlet 3121 of the cooling channel 31 are opened at position B, and the water inlet module 40 of this embodiment corresponds to position B. The first water inlet 411 and the first water outlet 421 of the water inlet module 40 are respectively connected to the first water inlet 3111 and the water outlet 3121 opened at position B.

[0068] For example, such as Figure 4 As shown, the cooling branch 313 of the cooling channel 31 consists of five grooves on the second fixed plate 302. Each groove is provided with multiple spaced fins to divide a groove into multiple flow channels. Thus, when the coolant flows through each groove, it can flow in multiple flow channels to enhance the cooling effect of the coolant.

[0069] For ease of explanation, the following description will use the five cooling branches 313 as an example, named in counterclockwise order as first cooling branch 3131, second cooling branch 3132, third cooling branch 3133, fourth cooling branch 3134 and fifth cooling branch 3135.

[0070] For example, such as Figure 4As shown, one end of the first cooling branch 3131 is provided with a first water inlet 3111, and the other end is connected to the second cooling branch 3132. One end of the fifth cooling branch 3135 is provided with a first water outlet 3121, and the other end is connected to the fourth cooling branch 3134. The second cooling branch 3132, the third cooling branch 3133, and the fourth cooling branch 3134 are connected in sequence.

[0071] But not limited to this, see reference Figure 5 In some possible implementations, the water inlet 311 and water outlet 312 of the cooling channel 31 in this embodiment may also be located at position A. Thus, the water inlet module 40 in this embodiment corresponds to position A, and the first water inlet 411 and the first water outlet 421 of the water inlet module 40 are respectively connected to the water inlet 311 and water outlet 312 located at position A.

[0072] For example, such as Figure 5 As shown, one end of the second cooling branch 3132 is provided with a water inlet 311, and the other end is connected to the third cooling branch 3133. One end of the first cooling branch 3131 is provided with a water outlet 312, and the other end is connected to the fifth cooling branch 3135. The third cooling branch 3133, the fourth cooling branch 3134, and the fifth cooling branch 3135 are connected in sequence.

[0073] refer to Figure 6 In some possible implementations, the water inlet 311 and water outlet 312 of the cooling channel 31 in this embodiment may also be located at position C. Thus, the water inlet module 40 in this embodiment corresponds to position C, and the first water inlet 411 and the first water outlet 421 of the water inlet module 40 are respectively connected to the water inlet 311 and the water outlet 312 located at position C.

[0074] For example, such as Figure 6 As shown, one end of the fifth cooling branch 3135 is provided with a water inlet 311, and the other end is connected to the first cooling branch 3131. One end of the fourth cooling branch 3134 is provided with a water outlet 312, and the other end is connected to the third cooling branch 3133. The first cooling branch 3131, the second cooling branch 3132, and the third cooling branch 3133 are connected in sequence.

[0075] refer to Figure 7 In some possible implementations, the water inlet 311 and water outlet 312 of the cooling channel 31 in this embodiment may also be located at position D. Thus, the water inlet module 40 in this embodiment corresponds to position D, and the first water inlet 411 and the first water outlet 421 of the water inlet module 40 are respectively connected to the water inlet 311 and the water outlet 312 located at position D.

[0076] For example, such as Figure 7 As shown, one end of the fourth cooling branch 3134 is provided with a water inlet 311, and the other end is connected to the fifth cooling branch 3135. One end of the third cooling branch 3133 is provided with a water outlet 312, and the other end is connected to the second cooling branch 3132. The second cooling branch 3132, the first cooling branch 3131, and the fifth cooling branch 3135 are connected in sequence.

[0077] refer to Figure 1 and Figure 2 In summary, the embodiments of this application provide a motor 1, which realizes the merging of two water channels through the water inlet module 40, and integrates the middle ring 11, the first fixing plate 301 and the junction box 20 into a housing 10, fixing the position of the junction box 20 on the housing 10 of the motor 1, simplifying the overall structure of the motor 1, reducing the number of parts, and making assembly simple and efficient.

[0078] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An electric motor, characterized in that, include: The housing includes a middle ring, a junction box, and a first fixing plate, wherein the junction box is connected to the middle ring; The second fixing plate, along the axial direction, is respectively located on opposite sides of the middle ring; Cooling channels are provided in both the first fixing plate and the second fixing plate; A sprue module is connected to the first fixing plate and the second fixing plate respectively. The sprue module is connected to the cooling channel and forms a cooling circuit; wherein, The cooling channel has a water inlet and a water outlet, and the water inlet module has a water inlet and a water outlet. The water inlet is connected to the water inlet, and the water outlet is connected to the water outlet.

2. The motor according to claim 1, characterized in that, The middle ring, the junction box, and the first fixing plate are integrally formed.

3. The motor according to claim 1 or 2, characterized in that, The water inlet module includes a water inlet shell, and the water inlet shell is provided with an inlet channel and an outlet channel, which are spaced apart along the circumferential direction; The water inlet includes a first water inlet and a second water inlet. Along the radial direction, the first water inlet and the second water inlet are respectively provided on opposite sides of the water inlet shell. Both the first water inlet and the second water inlet are connected to the water inlet channel. The water outlet includes a first water outlet and a second water outlet. Along the radial direction, the first water outlet and the second water outlet are respectively provided on opposite sides of the water outlet shell. Both the first water outlet and the second water outlet are connected to the water outlet channel.

4. The motor according to claim 3, characterized in that, The water inlet includes a first water inlet and a second water inlet, and the water outlet includes a first water outlet and a second water outlet. The first water inlet and the first water outlet are both located on the first fixed plate, and the second water inlet and the second water outlet are both located on the second fixed plate. The first water inlet is located at both ends of the water inlet channel and is connected to the first water inlet hole and the second water inlet hole respectively. The first water outlet is located at both ends of the water outlet channel and is connected to the first water outlet hole and the second water outlet respectively.

5. The motor according to claim 3, characterized in that, The inlet housing also includes a protrusion, which protrudes from the side of the inlet housing away from the middle ring, and the second inlet and the second outlet are both opened on the protrusion.

6. The motor according to claim 4, characterized in that, The water inlet housing also includes a sealing element, which is provided between the first water inlet and the first water inlet hole and the second water inlet hole, and the sealing element is provided between the first water outlet and the first water outlet hole and the second water outlet hole.

7. The motor according to claim 4, characterized in that, The motor also includes a sprue mounting part with a fixing part. The sprue housing includes a fixing hole corresponding to the fixing part. The fixing part is connected to the fixing hole so that the sprue housing is fixedly connected to the sprue mounting part.

8. The motor according to claim 4, characterized in that, The water inlet mounting part includes a first part and a second part. The first part is disposed on the housing, and the first water inlet and the first water outlet are disposed on the first part. The second part is disposed on the first fixing plate, and the second water inlet and the second water outlet are disposed on the second part. Both the first part and the second part are provided with the fixing part.

9. The motor according to claim 4, characterized in that, The fixing part is threadedly connected to the fixing hole.

10. The motor according to claim 1, characterized in that, Each of the cooling channels includes multiple cooling branches, wherein two adjacent cooling branches are interconnected, and the remaining adjacent cooling branches are provided with partitions to be processed. The junction box is located at an adjacent position of the two adjacent cooling branches that are interconnected. Along the circumference, the water inlet and the water outlet are respectively opened on opposite sides of one of the partitions to be processed and are respectively connected to the adjacent cooling branches. The water inlet and the water outlet of the water inlet module are respectively connected to the water inlet and the water outlet. The remaining partitions to be processed are processed so that the remaining adjacent cooling branches are interconnected to form the cooling circuit.

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