Motor shell, motor and servo valve

Abstract

The utility model relates to a motor shell, a motor and a servo valve, and relates to the technical field of motor cooling, the motor shell comprises a shell body, the shell body comprises a mounting base and a cover plate, the mounting base is internally provided with mounting holes for mounting the motor and a main control board, the mounting base is internally provided with a liquid cooling flow channel along the circumferential direction, and the liquid cooling flow channel is used for circulating cooling liquid so as to cool and mount the motor and the main control board; the cover plate is arranged on the mounting base and is positioned at an opening in the upper end of the mounting hole; the mounting boss is arranged on the inner wall of the mounting hole, the mounting boss divides the mounting hole into a first mounting section and a second mounting section, an opening of the first mounting section faces upwards and is used for mounting the main control board, and an opening of the second mounting section faces downwards and is used for mounting the motor and connecting an output shaft of the motor with the valve body. The motor and the main control board can be conveniently arranged in the shell body in a spaced mode, the output shaft at the lower end of the motor is connected with the valve body after installation is completed, the cover plate covers the installation base, installation is more convenient, and the motor and the main control board can be cooled at the same time through the liquid cooling flow channel.

Description

Technical Field

[0001] The utility model relates to the technical field of motor cooling, in particular to a motor housing, a motor and a servo valve. Background Art

[0002] Most of the electronic components and motors inside a servo valve are temperature-sensitive, and temperature significantly affects their efficiency. This is especially true for the motor, where efficiency decreases exponentially with temperature. Cooling the motor and control board can significantly improve servo valve performance.

[0003] In the prior art, there is a kind of external circulation oil-cooled permanent magnet synchronous all-in-one motor with patent number CN214850865U, which includes a flange end cover, a motor housing, an embedded stator, a rotor, a rear end cover, a rotating shaft and an external circulation mechanism. The external circulation mechanism is integrally connected to the motor body and achieves a cooling effect through the circulation of insulating oil. Compared with the air cooling used in the prior art, the cooling effect of the present invention is better. The continuous supply of new insulating oil to the motor can avoid the problem of reduced cooling effect caused by repeated use of the same insulating oil. A filter is provided between the pump body and the oil storage mechanism, so that the insulating oil is filtered before entering the pump body and the motor to remove impurities, which can effectively prevent the motor and the pump body from being blocked by impurities.

[0004] However, the motor structure in the servo valve also includes a motor control board. It is difficult to fix the motor control board in the existing motor housing, and thus it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve. Utility Model Content

[0005] The present application provides a motor housing, a motor and a servo valve, which can solve the problem in the prior art that the motor structure in the servo valve also includes a motor control board, it is difficult to fix the motor control board in the existing motor housing, and it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve.

[0006] In a first aspect, an embodiment of the present application provides a motor housing, comprising:

[0007] The housing body includes a mounting base and a cover plate. The mounting base is provided with mounting holes for mounting the motor and the main control board. The mounting base is provided with a liquid cooling channel along the circumference for circulating coolant to cool the motor and the main control board. The cover plate is provided on the mounting base and is located at the upper end opening of the mounting hole.

[0008] The mounting boss is arranged on the inner wall of the mounting hole. The mounting boss divides the mounting hole into a first mounting section and a second mounting section. The opening of the first mounting section faces upward and is used for installing the main control board. The opening of the second mounting section faces downward and is used for installing the motor and connecting the output shaft of the motor to the valve body.

[0009] In one embodiment, the cross-sectional shape of the first mounting section matches the main control board and is cross-shaped, and the cross-sectional shape of the second mounting section matches the large diameter section of the motor and is circular.

[0010] In one embodiment, a mounting groove is provided on the upper side of the mounting base. The mounting groove is arranged outside the opening of the mounting hole and matches the cross-sectional shape of the first mounting section. A sealing ring is provided in the mounting groove.

[0011] In one embodiment, a connecting through hole is provided in the mounting boss, the diameter of the connecting through hole is smaller than the inner diameter of the second mounting section, and the connecting through hole is used for the upper small-diameter section of the motor to extend therein.

[0012] In one embodiment, the mounting base is provided with four bolt connection holes, which are respectively arranged at four inner corners of the mounting hole opening, and the cover plate is connected to the mounting base by bolts.

[0013] In one embodiment, a water outlet pipe and a water inlet pipe are provided on the upper side of the mounting base, and both the water outlet pipe and the water inlet pipe are connected to the liquid cooling channel for circulating the coolant. A first through hole corresponding to the water outlet pipe and the water inlet pipe is provided on the cover plate, and the first through hole is used to allow the water outlet pipe or the water inlet pipe to extend out.

[0014] In one embodiment, an aviation plug is further included. The cover plate is provided with a second through hole. The aviation plug is arranged on the cover plate and passes through the second through hole for connection with the main control board.

[0015] In one embodiment, the liquid cooling channel is provided in the form of a Tesla valve, and is circumferentially provided in the mounting base in a single-circle wave shape.

[0016] In a second aspect, an embodiment of the present application further provides a motor, which includes the above-mentioned motor housing.

[0017] In a third aspect, the present invention also provides a servo valve, which includes the above-mentioned motor

[0018] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0019] When manufacturing the motor housing, mounting holes for mounting the motor and the main control board are provided inside the mounting base, and liquid cooling channels are provided circumferentially inside the mounting base for circulating coolant to cool the mounted motor and the main control board. The cover plate is arranged on the mounting base and is located at the upper end opening of the mounting hole. The mounting boss is arranged on the inner wall of the mounting hole. The mounting boss divides the mounting hole into a first mounting section and a second mounting section. The opening of the first mounting section faces upward and is used for mounting the main control board. The opening of the second mounting section faces downward and is used for mounting the motor, and the output shaft of the motor is connected to the valve body. Since the mounting boss divides the mounting hole into a first mounting section and a second mounting section, the main control board is arranged in the first mounting section and the motor is arranged in the second mounting section, which makes it convenient to arrange the motor and the main control board at intervals in the shell body. After the installation is completed, the lower end output shaft of the motor is connected to the valve body, and the cover plate is arranged on the mounting base, which makes the installation more convenient. The motor and the main control board can be cooled at the same time through the liquid cooling channel, which solves the problem that the motor structure in the servo valve in the prior art also includes a motor control board, and it is difficult to fix the motor control board in the existing motor shell, and thus it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic diagram of the longitudinal cross-section structure of an embodiment of a motor housing of the present utility model.

[0022] Figure 2 The figure is a schematic diagram of the exploded structure of a motor embodiment of the present utility model.

[0023] Figure 3 This is a perspective structural diagram of a mounting base in an embodiment of a motor housing of the present utility model.

[0024] Figure 4 This is a structural schematic diagram of a first liquid cooling channel in an embodiment of a motor housing of the present utility model.

[0025] Figure 5 This is a structural schematic diagram of a second liquid cooling channel in an embodiment of a motor housing of the present utility model.

[0026] Figure 6 This is a schematic structural diagram of a third liquid cooling channel in an embodiment of a motor housing of the present utility model.

[0027] Figure 7This is a structural schematic diagram of a mounting base in an embodiment of a motor housing of the present utility model.

[0028] Figure 8 This is a structural schematic diagram of an embodiment of a motor housing of the present utility model.

[0029] Figure 9 This is a schematic diagram of the longitudinal cross-section structure of a servo valve embodiment of the utility model.

[0030] Figure 10 This is a schematic diagram of the process of starting the cooling module in a servo valve embodiment of the utility model.

[0031] In the figure: 1. Shell body; 11. Mounting hole; 111. First mounting section; 112. Second mounting section; 12. Liquid cooling channel; 13. Mounting base; 131. Bolt connection hole; 132. Water outlet pipe; 133. Water inlet pipe; 134. Mounting groove; 14. Cover plate; 2. Motor; 3. Main control board; 4. Mounting boss; 5. Sealing ring; 6. Aviation plug; 7. Valve body. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The embodiments of the present application provide a motor housing, a motor and a servo valve, which can solve the problem in the prior art that the motor structure in the servo valve also includes a motor control board, it is difficult to fix the motor control board in the existing motor housing, and it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 As shown, on the one hand, the present application provides a motor housing, which includes:

[0035] The housing body 1 includes a mounting base 13 and a cover plate 14. The mounting base 13 is provided with a mounting hole 11 for mounting the motor 2 and the main control board 3. The mounting base 13 is provided with a liquid cooling channel 12 along the circumference thereof for circulating coolant to cool the motor 2 and the main control board 3. The cover plate 14 is provided on the mounting base 13 and is located at the upper end opening of the mounting hole 11.

[0036] The mounting boss 4 is arranged on the inner wall of the mounting hole 11. The mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112. The opening of the first mounting section 111 faces upward and is used to install the main control board 3. The opening of the second mounting section 112 faces downward and is used to install the motor 2 and connect the output shaft of the motor 2 to the valve body 7.

[0037] When manufacturing the motor housing, a mounting hole 11 for mounting the motor 2 and the main control board 3 is provided inside the mounting base 13. A liquid cooling channel 12 is provided circumferentially inside the mounting base 13 for circulating coolant to cool the mounted motor 2 and the main control board 3. A cover plate 14 is arranged on the mounting base 13 and is located at the upper end opening of the mounting hole 11. The mounting boss 4 is arranged on the inner wall of the mounting hole 11. The mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112. The opening of the first mounting section 111 faces upward and is used to mount the main control board 3. The opening of the second mounting section 112 faces downward and is used to mount the motor 2 and connect the output shaft of the motor 2 to the valve body 7. Since the mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112, the main control board 3 is arranged in the first mounting section 111, and the motor 2 is arranged in the second mounting section 112, so that the motor 2 and the main control board 3 are conveniently arranged in the shell body 1 at intervals. After the installation is completed, the lower end output shaft of the motor 2 is connected to the valve body 7, and the cover plate 14 is covered on the mounting base 13, which is more convenient during installation. The motor 2 and the main control board 3 can be cooled at the same time through the liquid cooling channel 12, which solves the problem that the motor structure in the servo valve in the prior art also includes a motor control board, and it is difficult to fix the motor control board in the existing motor housing, and thus it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve.

[0038] In this example, the coolant options include water, acetone, ammonia, Freon, and alcohol.

[0039] like Figure 1 、 Figure 3 、 Figure 7 and Figure 9 As shown, in some optional embodiments, the cross-sectional shape of the first mounting section 111 matches the main control board 3 and is cross-shaped, and the cross-sectional shape of the second mounting section 112 matches the large diameter section of the motor 2 and is circular.

[0040] In this embodiment, the cross-sectional shape of the first mounting section 111 matches the main control board 3 and is cross-shaped, and the cross-sectional shape of the second mounting section 112 matches the large diameter section of the motor 2 and is circular, thereby increasing the contact area between the main control board 3 and the motor 2 and the mounting hole 11 and improving the heat dissipation effect.

[0041] like Figure 1 、 Figure 2 、 Figure 7 and Figure 9 As shown, in some optional embodiments, a mounting groove 134 is provided on the upper side of the mounting base 13 , the mounting groove 134 is arranged outside the opening of the mounting hole 11 and matches the cross-sectional shape of the first mounting section 111 , and a sealing ring 5 is provided in the mounting groove 134 .

[0042] In this embodiment, a mounting groove 134 is provided on the upper side of the mounting base 13. The mounting groove 134 is arranged outside the opening of the mounting hole 11 and matches the cross-sectional shape of the first mounting section 111. A sealing ring 5 is provided in the mounting groove 134 to facilitate sealing. The sealing ring 5 is arranged in the mounting groove 134 that matches the cross-sectional shape of the first mounting section 111, and the position of the sealing ring 5 can also be limited to make the sealing ring 5 more stable.

[0043] like Figure 1 and Figure 9 As shown, in some optional embodiments, a connecting through hole is provided in the mounting boss 4 , the diameter of the connecting through hole is smaller than the inner diameter of the second mounting section 112 , and the connecting through hole is used to allow the upper small-diameter section of the motor 2 to extend therein.

[0044] In this embodiment, a connecting through hole is provided in the mounting boss 4 , the diameter of which is smaller than the inner diameter of the second mounting section 112 . The connecting through hole is used to allow the upper small-diameter section of the motor 2 to extend therein, facilitating the connection between the motor 2 and the main control board 3 .

[0045] like Figure 3 、 Figure 7 and Figure 8 As shown, in some optional embodiments, four bolt connection holes 131 are provided on the mounting base 13. The four bolt connection holes 131 are respectively arranged at the four inner corners of the opening of the mounting hole 11, and the cover plate 14 is connected to the mounting base 13 by bolts.

[0046] In this embodiment, four bolt connection holes 131 are provided on the mounting base 13. The four bolt connection holes 131 are respectively arranged at the four inner corners of the upper end opening of the mounting hole 11. The cover plate 14 is connected to the mounting base 13 by bolts, and the structure is more stable.

[0047] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 As shown, in some optional embodiments, a water outlet pipe 132 and a water inlet pipe 133 are provided on the upper side of the mounting base 13, and the water outlet pipe 132 and the water inlet pipe 133 are both connected to the liquid cooling channel 12 for circulating the coolant, and a first through hole corresponding to the water outlet pipe 132 and the water inlet pipe 133 is provided on the cover plate 14, and the first through hole is used to allow the water outlet pipe 132 or the water inlet pipe 133 to extend out.

[0048] In this embodiment, a water outlet pipe 132 and a water inlet pipe 133 are provided on the upper side of the mounting base 13. The water outlet pipe 132 and the water inlet pipe 133 are both connected to the liquid cooling channel 12 for circulating the coolant. The cover plate 14 is provided with a first through hole corresponding to the water outlet pipe 132 and the water inlet pipe 133. The first through hole is used to extend the water outlet pipe 132 or the water inlet pipe 133. The two first through holes allow the water outlet pipe 132 and the water inlet pipe 133 to extend out of the cover plate 14 and be connected to an external coolant circulation system to facilitate the circulation of the coolant.

[0049] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, in some optional embodiments, an aviation plug 6 is further included. A second through hole is provided on the cover plate 14 . The aviation plug 6 is arranged on the cover plate 14 and passes through the second through hole for connection with the main control board 3 .

[0050] In this embodiment, the motor housing also includes an aviation plug 6, and a second through hole is provided on the cover plate 14. The aviation plug 6 is arranged on the cover plate 14 and passes through the second through hole for connecting with the main control board 3, facilitating the signal connection between the main control board 3 and the external device.

[0051] like Figure 6 As shown, in some optional embodiments, the liquid cooling channel 12 is provided in the form of a Tesla valve, and is circumferentially provided in the mounting base 13 in a single-circle wave shape.

[0052] In this embodiment, the liquid cooling channel 12 is set in the form of a Tesla valve, which is arranged in a single-circle wave shape in the mounting base 13 and is circumferentially arranged around the mounting hole 11. It flows in one direction, has a more stable cooling effect, and can increase the flow rate and heat exchange efficiency.

[0053] like Figure 4 and Figure 5 As shown, in this example, the liquid cooling channel 12 can also adopt the form of multiple circles of channels stacked in the height direction, and can also adopt multiple U-shaped channels connected in sequence, with the upright channel and the inverted channel arranged crosswise, the side walls of the U-shaped channel connected in sequence, and the channel openings at the head and tail are connected to the water outlet pipe 132 and the water inlet pipe 133.

[0054] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 As shown, on the one hand, the present application also provides a motor, which includes the above-mentioned motor housing.

[0055] When manufacturing the motor housing, a mounting hole 11 for mounting the motor 2 and the main control board 3 is provided inside the mounting base 13. A liquid cooling channel 12 is provided circumferentially inside the mounting base 13 for circulating coolant to cool the mounted motor 2 and the main control board 3. A cover plate 14 is arranged on the mounting base 13 and is located at the upper end opening of the mounting hole 11. The mounting boss 4 is arranged on the inner wall of the mounting hole 11. The mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112. The opening of the first mounting section 111 faces upward and is used to mount the main control board 3. The opening of the second mounting section 112 faces downward and is used to mount the motor 2 and connect the output shaft of the motor 2 to the valve body 7. Since the mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112, the main control board 3 is arranged in the first mounting section 111, and the motor 2 is arranged in the second mounting section 112, so that the motor 2 and the main control board 3 are conveniently arranged in the shell body 1 at intervals. After the installation is completed, the lower end output shaft of the motor 2 is connected to the valve body 7, and the cover plate 14 is covered on the mounting base 13, which is more convenient during installation. The motor 2 and the main control board 3 can be cooled at the same time through the liquid cooling channel 12, which solves the problem that the motor structure in the servo valve in the prior art also includes a motor control board, and it is difficult to fix the motor control board in the existing motor housing, and thus it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve.

[0056] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 and Figure 9 As shown, on the other hand, the present application also provides a servo valve, which includes the above-mentioned motor

[0057] When manufacturing the motor housing, a mounting hole 11 for mounting the motor 2 and the main control board 3 is provided inside the mounting base 13. A liquid cooling channel 12 is provided circumferentially inside the mounting base 13 for circulating coolant to cool the mounted motor 2 and the main control board 3. A cover plate 14 is arranged on the mounting base 13 and is located at the upper end opening of the mounting hole 11. The mounting boss 4 is arranged on the inner wall of the mounting hole 11. The mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112. The opening of the first mounting section 111 faces upward and is used to mount the main control board 3. The opening of the second mounting section 112 faces downward and is used to mount the motor 2 and connect the output shaft of the motor 2 to the valve body 7. Since the mounting boss 4 divides the mounting hole 11 into a first mounting section 111 and a second mounting section 112, the main control board 3 is arranged in the first mounting section 111, and the motor 2 is arranged in the second mounting section 112, so that the motor 2 and the main control board 3 are conveniently arranged in the shell body 1 at intervals. After the installation is completed, the lower end output shaft of the motor 2 is connected to the valve body 7, and the cover plate 14 is covered on the mounting base 13, which is more convenient during installation. The motor 2 and the main control board 3 can be cooled at the same time through the liquid cooling channel 12, which solves the problem that the motor structure in the servo valve in the prior art also includes a motor control board, and it is difficult to fix the motor control board in the existing motor housing, and thus it is difficult to cool the entire servo valve, which may affect the normal operation of the servo valve.

[0058] like Figure 10 As shown, in this example, a temperature sensor is installed on the main control board 3, primarily used to detect the internal temperature of the valve body. When the temperature exceeds the limit, the main control board 3 issues a cooling command to the system, which in turn sends a signal to the external coolant pump. The external coolant pump pumps low-temperature coolant through the liquid cooling channel 12, removing excess heat from the valve body until the internal temperature falls below the limit. The main control board 3 then issues a cooling stop command, maintaining the valve's critical components within a suitable temperature range and extending the system's lifespan.

[0059] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0060] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0061] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A motor housing, characterized in that: include: A housing body (1) includes a mounting base (13) and a cover plate (14); a mounting hole (11) for mounting a motor (2) and a main control board (3) is provided inside the mounting base (13); a liquid cooling channel (12) is provided in the mounting base (13) along a circumferential direction for circulating cooling liquid to cool the motor (2) and the main control board (3); the cover plate (14) is provided on the mounting base (13) and is located at the upper end opening of the mounting hole (11); A mounting boss (4) is provided on the inner wall of the mounting hole (11), and the mounting boss (4) divides the mounting hole (11) into a first mounting section (111) and a second mounting section (112). The opening of the first mounting section (111) faces upward and is used for mounting the main control board (3). The opening of the second mounting section (112) faces downward and is used for mounting the motor (2) and connecting the output shaft of the motor (2) to the valve body (7).

2. A motor housing according to claim 1, characterized in that: The cross-sectional shape of the first mounting section (111) matches the main control board (3) and is cross-shaped, and the cross-sectional shape of the second mounting section (112) matches the large diameter section of the motor (2) and is circular.

3. A motor housing according to claim 2, characterized in that: A mounting groove (134) is provided on the upper side of the mounting base (13), the mounting groove (134) is arranged outside the opening of the mounting hole (11) and matches the cross-sectional shape of the first mounting section (111), and a sealing ring (5) is provided in the mounting groove (134).

4. A motor housing according to claim 2, characterized in that: A connecting through hole is provided in the mounting boss (4), the diameter of the connecting through hole being smaller than the inner diameter of the second mounting section (112), and the connecting through hole is used to allow the upper small-diameter section of the motor (2) to extend therein.

5. The motor housing according to claim 2, wherein: Four bolt connection holes (131) are provided on the mounting base (13), and the four bolt connection holes (131) are respectively arranged at four inner corners of the opening of the mounting hole (11), and the cover plate (14) is connected to the mounting base (13) by bolts.

6. The motor housing according to claim 1, wherein: A water outlet pipe (132) and a water inlet pipe (133) are provided on the upper side of the mounting base (13); the water outlet pipe (132) and the water inlet pipe (133) are both connected to the liquid cooling channel (12) for circulating cooling liquid; a first through hole corresponding to the water outlet pipe (132) and the water inlet pipe (133) is provided on the cover plate (14); the first through hole is used to allow the water outlet pipe (132) or the water inlet pipe (133) to extend out.

7. The motor housing according to claim 1, wherein: It also includes an aviation plug (6). The cover plate (14) is provided with a second through hole. The aviation plug (6) is arranged on the cover plate (14) and passes through the second through hole for connection with the main control board (3).

8. The motor housing according to claim 1, wherein: The liquid cooling channel (12) is provided in the form of a Tesla valve and is arranged in a single-circle wave shape along the circumferential direction within the mounting base (13).

9. A motor, characterized in that: The invention comprises a motor housing as described in any one of claims 1 to 8.

10. A servo valve, characterized in that: The invention comprises a motor as claimed in claim 9.

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