Motor adapter, motor controller, motor and electric compressor

Abstract

The utility model relates to a motor adapter, a motor controller, a motor and an electric compressor. The motor adapter includes an insulating housing and a contact member. The contact part is provided with a press-fit part located at one end of the contact part, a contact part located at the other end of the contact part, and a connecting rod part located between the press-fit part and the contact part and connecting the press-fit part and the contact part. The connecting rod part is provided with an elastic bending part, a fixing part which is widened relative to the rest part of the connecting rod part is arranged between the bending part and the press-fit part, and the contact part is fixed in the insulating shell through the fixing part. And the contact part and the bending part can freely float in the insulating shell. As a result, on one hand, production and assembly tolerances in the axial direction of the contact part can be compensated, on the other hand, production and assembly tolerances in a direction perpendicular to the axial direction of the contact part can be compensated.

Description

Technical Field

[0001] The present application relates to a motor adapter, a motor controller having the motor adapter, a motor having the motor adapter or the motor controller, and an electric compressor having the motor. Background Art

[0002] Electric compressors are widely used in various industries. In electric compressors, a motor is provided to drive the compressor. In order to supply power to the motor armature and control the motor, the motor usually has a motor controller. In this case, the motor armature is supplied with power by conductively connecting the phase terminals of the motor armature to a circuit board of the motor controller.

[0003] In the prior art, there are many ways to connect the phase line terminals of the motor armature to the circuit board of the motor controller. For example, the phase line terminals of the motor armature and the circuit board of the motor controller can be connected to each other through a wire. This is feasible when there is no requirement for installation space. However, the electric power that can be transmitted by the wire is limited, so its use in high-power application scenarios is restricted.

[0004] In some applications, such as in electric compressors, the installation space of the motor controller in the motor is very limited, and at the same time, large electric power needs to be transmitted. For this reason, it is also proposed in the prior art to design the phase line terminal of the motor armature as a terminal pin, and directly plug the terminal pin into the connection hole of the circuit board of the motor controller.

[0005] Although this meets the requirements of small installation space and large transmission power, it places very high demands on manufacturing accuracy and installation accuracy. Utility Model Content

[0006] The first aspect of the present application is to provide a motor adapter, which is used to connect the terminal pin of the motor armature to the circuit board of the motor controller in an electrically conductive manner to supply power to the motor armature, and the motor adapter includes an insulating housing and at least one conductive contact component. The contact component has a press-fit portion located at one end of the contact component, a contact portion located at the other end of the contact component, and a connecting rod portion located between the press-fit portion and the contact portion and connecting the press-fit portion and the contact portion, wherein the connecting rod portion has an elastic bending portion and has a fixed portion widened relative to the rest of the connecting rod portion between the bending portion and the press-fit portion, and the contact component is fixed in the insulating housing by means of the fixed portion, while the contact portion and the bent portion can float freely in the insulating housing. Thus, when the terminal pin of the motor armature is inserted into the contact portion of the contact component and / or when the press-fit portion of the contact component is pressed into the connection hole of the circuit board, the elastic bending portion of the contact component can be elastically deformed. In this way, on the one hand, manufacturing and assembly tolerances along the axial direction of the contact portion and on the other hand, manufacturing and assembly tolerances along the axial direction perpendicular to the contact portion can be compensated.

[0007] Optionally, the insulating housing has a first side, a second side opposite to the first side, and at least one accommodating cavity between the first side and the second side, the accommodating cavity includes a connecting rod guide groove, a contact portion accommodating chamber, and a bending portion floating area, the contact component can be loaded into the accommodating cavity from the second side, so that the connecting rod of the contact component can be inserted into the connecting rod guide groove and fixed in the connecting rod guide groove by interference fit with the help of the fixing portion, and the press-fit portion can extend from the insulating housing on the first side, the contact portion is accommodated in the contact portion accommodating chamber by clearance fit, and the bending portion can float freely in the bending portion floating area. Thus, the contact component is fixed in the insulating housing only by the fixing portion. When the terminal pin of the motor armature is inserted into the contact portion of the contact component and / or when the press-fit portion of the contact component is pressed into the connecting hole of the circuit board, the bent portion can be freely deformed in the floating area of ​​the bent portion under the action of the force acting on the contact portion and / or the press-fit portion, thereby the contact portion of the contact component can be displaced not only along the axial direction of the contact portion, but also in a direction perpendicular to the axial direction of the contact portion.

[0008] Optionally, the contact portion accommodating chamber has a bottom wall and an inner circumferential wall, and the contact portion is a crown spring. When the contact portion is subjected to external force, the axial inner end side of the contact portion can abut against the bottom wall of the contact portion accommodating chamber, thereby limiting the contact portion from deviating along the axial direction of the contact portion, and the outer circumferential wall of the contact portion can abut against the inner circumferential wall of the contact portion accommodating chamber, thereby limiting the contact portion from deviating in a direction perpendicular to the axial direction of the contact portion.

[0009] Optionally, the connecting rod guide groove has a stop surface, and when the connecting rod of the contact component is inserted into the connecting rod guide groove, the widened fixing portion can abut against the stop surface, thereby limiting the insertion depth of the connecting rod in the connecting rod guide groove, and the inner wall of the connecting rod guide groove limits the movement of the connecting rod along the thickness direction of the connecting rod, thereby avoiding the bending and deformation of the connecting rod when the connecting rod is inserted into the connecting rod guide groove and / or when the press-fit portion is inserted into the connecting hole of the circuit board.

[0010] Optionally, the fixing portion has a sawtooth structure, and when the connecting rod portion of the contact component is inserted into the connecting rod portion guide groove, the sawtooth structure's sawtooths are embedded in the inner wall of the connecting rod portion guide groove, thereby preventing the connecting rod portion of the contact component from slipping out of the connecting rod portion guide groove when the press-fit portion is inserted into the connecting hole of the circuit board.

[0011] Optionally, a mounting auxiliary surface is formed on a side of the fixing portion that is away from the press-fit portion along the axial direction of the connecting rod portion, and a mounting auxiliary tool can act on the mounting auxiliary surface to assist in pressing the press-fit portion into the connecting hole of the circuit board. By using the mounting auxiliary tool, it is possible to prevent the fixing portion from being disengaged from the insulating housing when the press-fit portion is pressed into the connecting hole of the circuit board.

[0012] Optionally, the insulating shell has at least one stop protrusion on the first side, and the stop protrusion extends parallel to the press-fit portion, so that when the press-fit portion is pressed into the connecting hole of the circuit board, the stop protrusion can abut against the surface of the circuit board to limit the pressing depth of the press-fit portion in the connecting hole.

[0013] Optionally, the extension direction of the press-fit portion is parallel to the axial direction of the contact portion. Alternatively, the extension direction of the press-fit portion is perpendicular to the axial direction of the contact portion.

[0014] Optionally, the contact component is integrally formed from a stamped sheet material. This simplifies the manufacture of the contact component and saves manufacturing costs accordingly. Alternatively, the contact component is formed by fixing together an independently manufactured contact portion and a press-fit portion and a connecting rod portion integrally formed from a stamped sheet material.

[0015] Optionally, the curved portion is C-shaped or S-shaped.

[0016] A second aspect of the present application is to provide a motor controller having a circuit board and the motor adapter as described above, wherein a press-fit portion of the motor adapter is inserted into and fixed in a connection hole of the circuit board by press-fitting.

[0017] The third aspect of the present application is to provide a motor having a terminal pin fixed to a housing of the motor. In addition, the motor also has a motor adapter or a motor controller as described above, wherein the terminal pin is inserted into a contact portion of a contact component of the motor adapter.

[0018] A fourth aspect of the present application is to provide an electric compressor having the motor as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings, but those skilled in the art will appreciate that these drawings are only used for the purpose of explaining the embodiments and should not be used as a limitation on the scope of the present application. The accompanying drawings show:

[0020] Figure 1 is an exploded view of an assembly of a motor adapter according to an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of an insulating housing according to an embodiment of the present application;

[0022] Figure 3 is another schematic diagram of an insulating housing according to an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of a contact component according to an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a contact component according to another embodiment of the present application;

[0025] Figure 6 is a schematic diagram of a stamped sheet for manufacturing a contact component according to one embodiment of the present application;

[0026] Figure 7is a schematic diagram of a motor adapter in an assembled state according to an embodiment of the present application;

[0027] Figure 8 is a detailed diagram of the assembly of a connecting rod portion of a contact component in a connecting rod portion guide groove of an insulating housing according to an embodiment of the present application;

[0028] Fig. 9 is an exploded view of the assembly of the motor adapter with the circuit board and the terminal pin module according to the present application; and

[0029] Fig.10 It is a schematic diagram of the motor adapter, the circuit board and the terminal pin module in an assembled state according to the present application. DETAILED DESCRIPTION

[0030] Figure 1 FIG. 1 shows an exploded view of an electric motor adapter 100 according to an embodiment of the present application. The electric motor adapter 100 includes an insulating housing 10 and at least one conductive contact component 20. Figure 1 In the illustrated embodiment, the motor adapter 100 includes three contact components 20. However, this is merely exemplary, and the motor adapter 100 may include fewer or more contact components 20. For example, the motor adapter 100 may include only a single contact component 20. At this time, in order to supply power to the motor armature, a plurality of motor adapters 100 may be combined and respectively conductively connected to a corresponding number of terminal pins of the motor armature. Alternatively, a number of contact components 20 corresponding to the number of terminal pins of the motor armature may also be combined in a single motor adapter 100. In this way, power supply to the motor armature is achieved through a single motor adapter 100. Figure 1 It can be seen from the figure that the contact component 20 can be installed into the insulating housing 10 along the installation direction shown by the straight arrow line.

[0031] Figure 2 A schematic diagram of an insulating housing 10 according to an embodiment of the present application is shown. Here, a first side 11 of the insulating housing 10 can be seen. Here, three contact components 20 can be installed in the insulating housing 10. However, as mentioned above, this is not necessary, and the insulating housing 10 can be adapted according to the number of contact components 20 to be installed.

[0032] Figure 3 Another schematic diagram of an insulating housing 10 according to an embodiment of the present application is shown. Figure 3 1 is a view viewed from a second side 12 of the insulating housing 10 opposite to the first side 11. Figure 3It can be clearly seen that there are three accommodating cavities 13 between the first side 11 and the second side 12, and one contact component 20 can be accommodated in each accommodating cavity 13. Of course, as mentioned above, the number of accommodating cavities 13 of the insulating housing 10 depends on the number of contact components 20. When the motor adapter 100 has only one contact component 20, the insulating housing 10 also has only one accommodating cavity 13 accordingly. When the motor adapter 100 has a larger number of contact components 20, the insulating housing 10 also has a larger number of accommodating cavities 13 accordingly.

[0033] Figure 4 A schematic diagram of a contact component 20 according to an embodiment of the present application is shown. The contact component 20 has a press-fit portion 21 located at one end of the contact component 20, a contact portion 25 located at the other end of the contact component 20, and a connecting rod portion 22 located between the press-fit portion 21 and the contact portion 25 and connecting the press-fit portion 21 and the contact portion 25, wherein the connecting rod portion 22 has an elastic bent portion 24 and has a fixed portion 23 widened relative to the rest of the connecting rod portion 22 between the bent portion 24 and the press-fit portion 21, and the contact component 20 can be fixed in the insulating housing 10 in a suitable manner by means of the fixed portion 23, while the contact portion 25 and the bent portion 24 can float freely in the insulating housing 10. Thus, when the terminal pin of the motor armature is inserted into the contact portion 25 of the contact component 20 and / or when the press-fit portion 21 of the contact component 20 is pressed into the connection hole of the circuit board, the elastic bent portion 24 of the contact component 20 can be elastically deformed. In this way, on the one hand, manufacturing and assembly tolerances along the axial direction of the contact portion 25 can be compensated, and on the other hand, manufacturing and assembly tolerances along the axial direction perpendicular to the contact portion 25 can be compensated. Figure 4 In the embodiment shown, the extension direction of the press-fit portion 21 is parallel to the axial direction of the contact portion 25. This configuration is suitable for the case where the terminal pins of the motor armature are perpendicular to the circuit board of the motor controller. Thus, the direction in which the press-fit portion 21 is pressed into the connection hole of the circuit board is parallel to the insertion direction of the terminal pins of the motor armature into the contact portion 25. Figure 4 As can be seen in the figure, the curved portion 24 is C-shaped. Alternatively, the curved portion 24 can also be designed to be S-shaped. Of course, according to the elasticity required to be achieved, the curved portion 24 can also be designed to be any other suitable shape.

[0034] exist Figure 4In the embodiment shown, the contact portion 25 is a crown spring. Here, the bent portion 24 is bent outward along the radial direction of the contact portion 25, so that the press-fit portion 21 and the connecting rod portion 22 of the contact component 20 are located on the radial outside of the contact portion 25 as a whole. In an alternative embodiment, the bent portion 24 can also be bent inward along the radial direction of the contact portion 25, so that the press-fit portion 21 and the connecting rod portion 22 of the contact component 20 are located on the radial inside of the contact portion 25 as a whole. In this way, a more compact motor adapter 100 can be obtained.

[0035] Figure 5 FIG. 2 shows a schematic diagram of a contact component 20 according to another embodiment of the present application. Figure 5 It can be seen that the extension direction of the press-fit portion 21 is no longer parallel to the axial direction of the contact portion 25, but instead, the extension direction of the press-fit portion 21 is perpendicular to the axial direction of the contact portion 25. This configuration is suitable for the terminal pins of the motor armature to be parallel to the circuit board of the motor controller.

[0036] The contact member 20 may be integrally formed from a stamped sheet. Figure 6 A schematic diagram of a stamped sheet for manufacturing a contact component according to an embodiment of the present application is shown. Here, the contact portion 25 is shown in a flat state before being curled into a crown spring. Here, the rectangular portion at the bottom of the stamped sheet can be curled into a cylindrical shape, and then the middle portion of the formed cylindrical shape is pressed inwardly in the radial direction to form the contact portion 25 in the form of a crown spring. By bending the rod-shaped portion of the stamped sheet, an elastic curved portion 24 can be formed.

[0037] Alternatively, the contact component 20 may also have an independently manufactured contact portion 25, and the contact component 20 may be manufactured by fixing the contact portion 25 to the connecting rod portion 22 of the contact component 20. Here, the press-fit portion 21 and the connecting rod portion 22 of the contact component 20 may be integrally formed from a stamped sheet. In one embodiment, the contact portion 25 may be fixed to the connecting rod portion 22 by welding.

[0038] Of course, the contact portion 25 is not limited to the form of a crown spring, and may also have any other form known in the prior art.

[0039] Figure 7 FIG. 1 shows a schematic diagram of a motor adapter 100 in an assembled state according to an embodiment of the present application. Figure 7In the cross-sectional view of FIG. 1 , it can be more clearly seen that the insulating housing 10 has an accommodating cavity 13 between the first side 11 and the second side 12, the accommodating cavity 13 includes a connecting rod guide groove 14, a contact portion accommodating chamber 15 and a bending portion floating area 16, the contact component 20 can be installed in the accommodating cavity 13 from the second side 12 of the insulating housing 10, so that the connecting rod 22 of the contact component 20 can be inserted into the connecting rod guide groove 14 and fixed in the connecting rod guide groove 14 by interference fit with the help of the fixing portion 23, and the press-fit portion 21 extends from the insulating housing 10 at the first side 11, the contact portion 25 is accommodated in the contact portion accommodating chamber 15 by clearance fit, and the bending portion 24 can float freely in the bending portion floating area 16. Therefore, the contact component 20 is fixed in the insulating housing 10 only by the fixing portion 23. When the terminal pin of the motor armature is inserted into the contact portion 25 of the contact component 20 and / or when the press-fit portion 21 of the contact component 20 is pressed into the connecting hole of the circuit board, under the action of the force acting on the contact portion 25 and / or the press-fit portion 21, the bent portion 24 can be freely deformed in the bent portion floating area 16, whereby the contact portion 25 of the contact component 20 can be shifted not only along the axial direction of the contact portion 25, but also along a direction perpendicular to the axial direction of the contact portion 25, thereby compensating for corresponding manufacturing and assembly tolerances.

[0040] In addition, from Figure 7 It can be seen from the figure that the contact portion accommodating chamber 15 has a bottom wall 17 and an inner peripheral wall 18, and the contact portion 25 is a crown spring. When the contact portion 25 is subjected to an external force, the axial inner end side of the contact portion 25 can abut against the bottom wall 17 of the contact portion accommodating chamber 15, thereby limiting the contact portion 25 from deviating in the axial direction of the contact portion 25, and the outer peripheral wall of the contact portion 25 can abut against the inner peripheral wall 18 of the contact portion accommodating chamber 15, thereby limiting the contact portion 25 from deviating in a direction perpendicular to the axial direction of the contact portion 25.

[0041] Figure 8 FIG. 1 shows a detailed view of the assembly of the connecting rod portion 22 of the contact component 20 in the connecting rod portion guide groove 14 of the insulating housing 10 according to an embodiment of the present application. Figure 8It can be clearly seen that the connecting rod guide groove 14 has a stop surface 19. When the connecting rod 22 of the contact component 20 is inserted into the connecting rod guide groove 14, the widened fixing portion 23 can abut against the stop surface 19, thereby limiting the insertion depth of the connecting rod 22 in the connecting rod guide groove 14, and the inner wall of the connecting rod guide groove 14 limits the movement of the connecting rod 22 along the thickness direction of the connecting rod 22. This avoids the connecting rod 22 from bending and deforming when the connecting rod 22 is inserted into the connecting rod guide groove 14 and / or when the press-fit portion 21 is inserted into the connecting hole of the circuit board.

[0042] also, Figure 8 It is also shown that the fixing portion 23 has a serration structure 26, and when the connecting rod portion 22 of the contact component 20 is inserted into the connecting rod portion guide groove 14, the serrations of the serration structure 26 are embedded in the inner wall of the connecting rod portion guide groove 14. This can prevent the connecting rod portion 22 of the contact component 20 from sliding out of the connecting rod portion guide groove 14 under the action of the reaction force when the press-fit portion 21 is inserted into the connecting hole of the circuit board. Advantageously, the serrations of the serration structure 26 are in the shape of a barb, so that on the one hand, the fixing portion 23 of the connecting rod portion 22 of the contact component 20 can be more easily inserted into the connecting rod portion guide groove 14, and on the other hand, the barb-shaped serrations can strengthen the fixing strength of the connecting rod portion 22 of the contact component 20 in the connecting rod portion guide groove 14, thereby further preventing the connecting rod portion 22 of the contact component 20 from sliding out of the connecting rod portion guide groove 14 when the press-fit portion 21 is inserted into the connecting hole of the circuit board. In addition, from Figure 8 It can also be seen that the side of the fixing portion 23 facing away from the press-fit portion 21 along the axial direction of the connecting rod portion 22 forms an auxiliary installation surface, and an auxiliary installation tool can act on the auxiliary installation surface to assist in pressing the press-fit portion 21 into the connecting hole of the circuit board. By using the auxiliary installation tool, it is possible to prevent the fixing portion 23 from being disengaged from the insulating housing 10 when the press-fit portion 21 is pressed into the connecting hole of the circuit board.

[0043] Fig. 9 FIG. 1 shows an exploded view of the motor adapter 100, the circuit board 200 and the terminal pin module 300 according to the present application. Fig. 9It can be seen that the circuit board 200 has three connection holes 210, which respectively correspond to the three contact parts 20 of the motor adapter 100. In addition, the terminal pin module 300 also has three terminal pins 310, which also respectively correspond to the three contact parts 20 of the motor adapter 100. The terminal pin module 300 can be fixed on the housing of the motor, and the terminal pins 310 of the terminal pin module 300 are respectively conductively connected to the phase lines of the motor armature. In an optional embodiment, the motor armature can also have three terminal pins 310 that are independent of each other, and they are respectively fixed on the housing of the motor and conductively connected to the phase lines of the motor armature.

[0044] Fig.10 FIG. 1 is a schematic diagram showing a motor adapter 100 according to the present application, a circuit board 200 of a motor controller, and a terminal pin module 300 of a motor armature in an assembled state. Fig.10 As can be seen in FIG. 1 , the insulating housing 10 has three stop protrusions on the first side 11. Figure 2 The stop protrusion extends parallel to the press-fit portion 21, so that when the press-fit portion 21 is pressed into the connection hole 210 of the circuit board 200, the stop protrusion can abut against the surface of the circuit board 200 to limit the pressing depth of the press-fit portion 21 in the connection hole 210. Figure 2 and Fig.10 In the embodiment shown, a stop projection is provided for each press-fit portion 21, but this is not necessary. It is also possible to provide only one stop projection or two stop projections for each motor adapter 100. Of course, more stop projections may also be provided depending on the number of contact components 20 of the motor adapter 100.

[0045] from Fig.10 It can be seen that the press-fit portion 21 of the contact component 20 of the motor adapter 100 has been inserted and fixed in the corresponding connection hole 210 of the circuit board 200 by press-fitting, and the stop protrusion of the insulating housing 10 of the motor adapter 100 abuts against the lower surface of the circuit board 200. In addition, the terminal pins 310 of the terminal pin module 300 have also been inserted into the contact portions 25 of the corresponding contact components 20 of the motor adapter 100, thereby conductively connecting the terminal pins 310 of the motor armature to the circuit board 200 of the motor controller to supply power to the motor armature.

[0046] Such an electric motor can be used in an electric compressor for driving the compressor.

[0047] The above is only an exemplary implementation of the present application, and the protection scope of the present application is not limited to the above implementation. All technical solutions under the concept of the present application belong to the protection scope of the present application. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present application should also be regarded as the protection scope of the present application.

Claims

1. A motor adapter (100) for conductively connecting a terminal pin (310) of a motor armature to a circuit board (200) of a motor controller to supply power to the motor armature, the motor adapter (100) comprising an insulating housing (10) and at least one conductive contact component (20), It is characterized in that The contact component (20) comprises a press-fit portion (21) located at one end of the contact component (20), a contact portion (25) located at the other end of the contact component (20), and a connecting rod portion (22) located between the press-fit portion (21) and the contact portion (25) and connecting the press-fit portion (21) and the contact portion (25). The connecting rod portion (22) has an elastic bending portion (24) and a fixing portion (23) widened relative to the rest of the connecting rod portion (22) between the bending portion (24) and the press-fit portion (21); the contact component (20) is fixed in the insulating housing (10) by means of the fixing portion (23), while the contact portion (25) and the bending portion (24) are able to float freely in the insulating housing (10).

2. The motor adapter (100) according to claim 1, characterized in that: The insulating housing (10) has a first side (11), a second side (12) opposite to the first side (11), and at least one accommodating cavity (13) between the first side (11) and the second side (12), the accommodating cavity (13) comprising a connecting rod guide groove (14), a contact portion accommodating chamber (15), and a bending portion floating area (16), the contact component (20) can be loaded into the accommodating cavity (13) from the second side (12), so that the connecting rod (22) of the contact component (20) can be inserted into the connecting rod guide groove (14) and fixed in the connecting rod guide groove (14) by interference fit with the aid of the fixing portion (23), and the press-fit portion (21) can extend from the insulating housing (10) at the first side (11), the contact portion (25) is accommodated in the contact portion accommodating chamber (15) by clearance fit, and the bending portion (24) can float freely in the bending portion floating area (16).

3. The motor adapter (100) according to claim 2, characterized in that: The contact portion accommodating chamber (15) has a bottom wall (17) and an inner peripheral wall (18), and the contact portion (25) is a crown spring. When the contact portion (25) is subjected to an external force, the axial inner end side of the contact portion (25) can abut against the bottom wall (17) of the contact portion accommodating chamber (15), thereby limiting the contact portion (25) from deviating in the axial direction of the contact portion (25), and the outer peripheral wall of the contact portion (25) can abut against the inner peripheral wall (18) of the contact portion accommodating chamber (15), thereby limiting the contact portion (25) from deviating in a direction perpendicular to the axial direction of the contact portion (25).

4. The motor adapter (100) according to claim 2, characterized in that: The connecting rod guide groove (14) has a stop surface (19). When the connecting rod (22) of the contact component (20) is inserted into the connecting rod guide groove (14), the widened fixing portion (23) can abut against the stop surface (19), thereby limiting the insertion depth of the connecting rod (22) in the connecting rod guide groove (14), and the inner wall of the connecting rod guide groove (14) limits the movement of the connecting rod (22) along the thickness direction of the connecting rod (22).

5. The motor adapter (100) according to claim 2, characterized in that: The fixing portion (23) has a serration structure (26); when the connecting rod portion (22) of the contact component (20) is inserted into the connecting rod portion guide groove (14), the serrations of the serration structure (26) are embedded in the inner wall of the connecting rod portion guide groove (14); and a mounting auxiliary surface is formed on the side of the fixing portion (23) along the axial direction of the connecting rod portion (22) facing away from the press-fit portion (21); a mounting auxiliary tool can act on the mounting auxiliary surface to assist in pressing the press-fit portion (21) into the connecting hole (210) of the circuit board (200).

6. The motor adapter (100) according to claim 2, characterized in that: The insulating housing (10) has at least one stop protrusion on the first side (11), and the stop protrusion extends parallel to the press-fit portion (21), so that when the press-fit portion (21) is pressed into the connecting hole (210) of the circuit board (200), the stop protrusion can abut against the surface of the circuit board (200) to limit the pressing depth of the press-fit portion (21) in the connecting hole (210).

7. The motor adapter (100) according to any one of claims 1 to 6, characterized in that: The extension direction of the press-fit portion (21) is parallel to the axial direction of the contact portion (25); or the extension direction of the press-fit portion (21) is perpendicular to the axial direction of the contact portion (25).

8. The motor adapter (100) according to any one of claims 1 to 6, characterized in that: The contact component (20) is integrally formed from a stamped sheet, or the contact component (20) is formed by fixing together an independently manufactured contact portion (25) and a press-fit portion (21) and a connecting rod portion (22) integrally formed from a stamped sheet.

9. The motor adapter (100) according to any one of claims 1 to 6, characterized in that: The curved portion (24) is C-shaped or S-shaped.

10. A motor controller having a circuit board (200), characterized in that: The motor controller further comprises a motor adapter (100) according to any one of claims 1 to 9, wherein a press-fit portion (21) of the motor adapter (100) is inserted into and fixed in a connection hole (210) of the circuit board (200) by press-fitting.

11. A motor, characterized in that: The motor has: a terminal pin (310) fixed to the housing of the motor; and The motor adapter (100) according to any one of claims 1 to 9 or the motor controller according to claim 10, The terminal pin (310) is inserted into the contact portion (25) of the contact component (20) of the motor adapter (100).

12. An electric compressor, characterized in that: The electric compressor has the motor according to claim 11 .

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