Motor socket and motor

Abstract

The motor socket comprises a socket body and a grounding element arranged on the socket body, one end of the grounding element is provided with an end connecting piece, the other end of the grounding element is provided with a grounding pin, the grounding pin is used for being electrically connected with a grounding terminal of a plug, and the end connecting piece is electrically connected with the grounding pin; the socket body is provided with a first mounting hole for a fixing piece to pass through so as to fix the socket on the motor shell, the end connecting piece comprises a second mounting hole, and the second mounting hole corresponds to the first mounting hole in position and is used for the fixing piece to pass through so as to fix the socket on the motor shell. Therefore, the electric connection between the end part connecting piece and the motor shell is realized. Through the fastening effect of the fixing piece, the stability of the electric connection between the end part connecting piece and the motor shell is improved, so that the motor shell can be effectively grounded.

Description

Technical Field

[0001] This application relates to the field of motor technology, specifically to a motor socket and a motor. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It is widely used in various mechanical equipment, automation systems, and household appliances. Motors have sockets, which are plugged into the socket to allow power input or signal transmission. The motor socket has a grounding element, which is electrically connected to the motor housing to ground it. Currently, the stability of the electrical connection between the grounding element and the motor housing is poor, increasing the likelihood of electrical faults and affecting usability. Utility Model Content

[0003] This application provides a motor socket and a motor, which can solve the problem of poor stability of motor housing grounding.

[0004] According to one aspect of this application, one embodiment provides a motor socket, including: a socket body, and a grounding element disposed on the socket body. One end of the grounding element is provided with an end connector, and the other end is provided with a grounding pin. The grounding pin is used for electrical connection with the grounding terminal of a plug. The end connector is electrically connected to the grounding pin. The socket body is provided with a first mounting hole for a fixing member to pass through to fix the socket to the motor housing. The end connector includes a second mounting hole, which corresponds to the position of the first mounting hole, for the fixing member to pass through to realize electrical connection between the end connector and the motor housing.

[0005] In one embodiment, the end connector is disposed in the first mounting hole, and one end of the end connector is exposed from the surface of the socket body near the motor housing for contacting and electrically connecting with the motor housing.

[0006] In one embodiment, the end connector is cylindrical, the end connector is disposed in the first mounting hole, and the fixing member is a metal screw.

[0007] In one embodiment, the outer circumference of the end connector has a plurality of circumferentially arranged groove structures, and the wall of the first mounting hole is provided with a plurality of protrusion structures, the groove structures and the protrusion structures engaging in a concave-convex fit to form a limiting position.

[0008] In one embodiment, the end connector is disposed on the surface of the socket body away from the motor housing, and the fixing member is a metal screw that passes through the second mounting hole and the first mounting hole in sequence and is fixedly connected to the motor housing.

[0009] In one embodiment, the grounding element is a one-piece molded structure.

[0010] In one embodiment, the socket body is an integral injection-molded structure, and the socket body is fixedly connected to the grounding element through injection molding.

[0011] In one embodiment, the grounding element is provided with a plurality of end connectors, each of which is electrically connected to the grounding pin. The socket body is provided with a plurality of first mounting holes, the positions of which correspond one-to-one with the second mounting holes of the end connectors.

[0012] In one embodiment, the socket further includes a power pin and a signal pin. The socket body is provided with a plug interface. The ground pin, the power pin, and the signal pin are all located in the plug interface. The end connector is located outside the plug interface.

[0013] According to another aspect of this application, one embodiment provides an electric motor, including: an electric motor housing, and an electric motor socket as described above, wherein the socket is fixedly connected to the electric motor housing via the fixing member passing through the first mounting hole, and at least one of the fixing members passes through the second mounting hole to electrically connect the end connector to the electric motor housing.

[0014] The motor socket and motor according to the above embodiments include a grounding element. One end of the grounding element is provided with an end connector. The second mounting hole of the end connector corresponds to the position of the first mounting hole of the socket body, allowing a fixing member to pass through to achieve contact and electrical connection between the end connector and the motor housing. The fixing member has a fastening function, and the connection between the fixing member and the motor housing is stable, which helps to improve the stability of the electrical connection between the end connector and the motor housing. This allows the motor housing to be effectively grounded, which helps to reduce the possibility of electrical faults and provides protection for the operation and use of the motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a motor socket according to one embodiment;

[0016] Figure 2 This is a schematic diagram of the structure of a grounding element according to one embodiment;

[0017] Figure 3 This is a schematic diagram of an end connector with a flange according to one embodiment;

[0018] Figure 4 This is a schematic diagram of the connection structure when the end connector is disposed in the first mounting hole according to one embodiment;

[0019] Figure 5This is a schematic diagram of the connection structure when the end connector is provided on the surface of the socket body according to one embodiment;

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Socket body, 101-Mounting boss, 102-Plug interface; 2-Grounding element, 201-End connector, 202-Grounding pin, 203-Bending part, 204-Groove structure, 205-Main body, 206-Flange; 3-First mounting hole; 4-Second mounting hole; 5-Motor housing; 6-Fixing component. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0023] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0024] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0025] Please see Figures 1 to 5 This application provides a motor socket, including a socket body 1, a grounding element 2 disposed on the socket body 1, and other functional components as needed, which are described in detail below.

[0026] In this embodiment, one end of the grounding element 2 is provided with an end connector 201, and the other end is provided with a grounding pin 202. The grounding pin 202 is used to electrically connect with the grounding terminal of the plug, and the end connector 201 is electrically connected with the grounding pin 202. The socket body 1 is provided with a first mounting hole 3 for the fixing member 6 to pass through to fix the socket to the motor housing 5. The end connector 201 includes a second mounting hole 4, which corresponds to the position of the first mounting hole 3, and is used to allow the fixing member 6 to pass through so as to realize the electrical connection between the end connector 201 and the motor housing 5.

[0027] It is understood that the grounding element 2 in this embodiment is made of conductive metal material. The end connector 201 of the grounding element 2 is electrically connected to the motor housing 5, and the grounding pin 202 is electrically connected to the grounding terminal on the plug to achieve grounding of the motor housing 5. In this embodiment, the motor housing 5 is made of metal material, and the plug and socket are compatible. The connection between the plug and socket is used to connect the motor to the driver or other devices. In this embodiment, one end of the grounding element 2 is provided with an end connector 201. The second mounting hole 4 of the end connector 201 corresponds to the position of the first mounting hole 3. During assembly, the fixing member 6 passes through the second mounting hole 4 and is connected and fixed to the motor housing 5. In some embodiments, the end connector 201 is in direct contact with the motor housing 5. In this case, the fastening effect of the fastener 6 can increase the stability of the contact electrical connection between the end connector 201 and the motor housing 5. In some embodiments, the end connector 201 may not be in direct contact with the motor housing 5. In this case, the electrical connection between the end connector 201 and the motor housing 5 can also be formed through the conductivity of the fastener 6. The connection between the fastener 6 and the motor housing 5 has good stability and is also conducive to improving the reliability of grounding.

[0028] In this embodiment, the connection between the fixing member 6 and the motor housing 5 improves the stability of the electrical connection between the end connector 201 and the motor housing 5, allowing the motor housing 5 to be effectively grounded, reducing the possibility of electrical faults and ensuring the operation and use of the motor. Furthermore, in this embodiment, the first mounting hole 3 on the socket is used for the fixing member 6 connected to the motor housing 5 to pass through and fix the socket to the motor housing 5. The second mounting hole 4 corresponds to the position of the first mounting hole 3, so that during assembly, no additional fixing member 6 is needed to connect the socket to the motor housing 5 at the first mounting hole 3 corresponding to the second mounting hole 4, which helps reduce material and assembly costs. The remaining first mounting holes 3 on the socket body 1 can be connected and fixed to the motor housing 5 through the fixing member 6, thereby fixing the socket to the motor housing 5. This embodiment does not impose specific limitations on the number and position of the first mounting holes 3; for example, multiple first mounting holes 3 can be provided on the socket body 1, and the multiple first mounting holes 3 can be symmetrically distributed on the socket body 1. In this embodiment, the fastener 6 can be made of conductive metal. The fastener 6 can be, but is not limited to, screws, bolts, etc., and the fastener 6 and the motor housing 5 can be connected by threads.

[0029] In one embodiment, such as Figure 1 , Figure 4 As shown, the end connector 201 is disposed in the first mounting hole 3. One end of the end connector 201 protrudes from the surface of the socket body 1 near the motor housing 5, and is used for contact and electrical connection with the motor housing 5. When the end connector 201 is disposed in the first mounting hole 3, the socket body 1 can be installed tightly against the motor housing 5, improving the sealing effect. Furthermore, the end connector 201 can directly contact the motor housing 5, resulting in better reliability of the electrical connection between the end connector 201 and the motor housing 5. The end connector 201 is also better fixed to the socket body 1, increasing the structural stability of the socket. At this time, the second mounting hole 5 is also located in the first mounting hole 3. During assembly, the fixing member 6 passes through the second mounting hole 4 of the end connector 201, and simultaneously passes through the first mounting hole 3. In this embodiment, the end connector 201 may have only one end exposed from the surface of the socket body 1 for contact and electrical connection with the motor housing 5; or both ends of the end connector 201 may be exposed. When both ends are exposed, the fixing member 6 may be a metal screw. One end face of the end connector 201 is directly contacted and electrically connected to the motor housing 5, while the other end face abuts against the nut of the fixing member 6 during assembly. Through the conductive effect of the fixing member 6, the reliability of the electrical connection between the end connector 201 and the motor housing 5 can be further improved.

[0030] In one embodiment, such as Figure 1 , Figure 2 and Figure 4As shown, the end connector 201 can be cylindrical and is disposed within the first mounting hole 3. The fixing member 6 is a metal screw. Through the conductive effect of the fixing member 6, an electrical connection can be formed between the end connector 201 and the motor housing 5. The connection between the fixing member 6 and the motor housing 5 has good stability and also helps improve the sealing effect between the socket body and the motor housing. Furthermore, the cylindrical end connector 201 is simple to manufacture, and in this embodiment, the central axis of the second mounting hole 4 can coincide with the central axis of the cylinder. In some applications, the end connector 201 can also be other shapes, such as a prism. In some applications, the fixing member 6 can also be a metal pin or rivet, which also has a conductive effect, helping to improve the reliability of the electrical connection between the end connector 201 and the motor housing 5.

[0031] In one embodiment, to improve the stability of the connection between the end connector 201 and the socket body 1, the outer circumference of the end connector 201 has multiple circumferentially arranged groove structures 204, and the wall of the first mounting hole 3 is correspondingly provided with multiple protrusion structures. The groove structures 204 and the protrusion structures engage in a concave-convex fit to form a limiting mechanism. Providing grooves on the outer circumference of the end connector 201 is simpler to manufacture and easier to process. In some applications, protrusions can also be provided on the end connector 201, and corresponding grooves can be provided on the socket body 1, thereby also forming a concave-convex fit for limiting. This embodiment does not limit the specific shape, size, and number of the groove structures 204. For example, several groove structures 204 extending axially along the outer wall of the end connector 201 can be provided, and correspondingly, several protrusion structures can be provided on the socket body 1. The groove structures 204 can be triangular, arc-shaped, rectangular, etc. In some embodiments, the groove structures 204 can also be arranged circumferentially along the end connector 201, or they can be arranged obliquely along the outer circumference of the end connector 201. In some application scenarios, the end connector 201 can also increase the connection stability through other structures, or the groove structure 204 can be omitted.

[0032] In one embodiment, such as Figure 5As shown, the end connector 201 is located on the surface of the socket body 1 away from the motor housing 5. The fixing member 6 is a metal screw, which passes through the second mounting hole 4 and the first mounting hole 3 in sequence, and is fixedly connected to the motor housing 5. During assembly, the fixing member 6 passes through the second mounting hole 4 on the end connector 201, then through the first mounting hole 3 on the socket body 1, and connects to the mounting hole on the motor housing 5. During assembly, the nut of the fixing member 6 abuts against the end connector 201. Through the conductive effect of the nut, the reliability of the electrical connection between the end connector 201 and the motor housing 5 can be further improved. In this embodiment, the dimensions of the first mounting hole 3 and the second mounting hole 4 can be the same, or the diameter of the second mounting hole 4 on the end connector 201 can be larger than the diameter of the first mounting hole 3 on the socket body 1. In some embodiments, when the fixing member 6 is a metal screw, the corresponding mounting hole on the motor housing 5 is a threaded hole, and the fixing member 6 is connected and fixed to the threaded hole. The end connector 201 is located on the surface of the socket body away from the motor housing, which can improve the sealing effect between the socket body 1 and the motor housing.

[0033] In one embodiment, the grounding element 2 can be a one-piece molded structure, in which case the end connector 201 and the grounding pin 202 can be directly connected, or there may be other connecting segments between the two. For example, the end connector 201 and the grounding pin 202 are connected by a bend 203, which is connected to the outer wall of the end connector 201. The one-piece molded structure is simple to manufacture and can avoid poor electrical contact that may occur when connected by other methods. In some embodiments, the end connector 201 can also be connected to the bend 203 or the grounding pin 202 by welding.

[0034] In one embodiment, the socket body 1 is an integral injection-molded structure, and the socket body 1 is fixedly connected to the grounding element 2 through injection molding. During manufacturing, the pre-made grounding element 2 can be placed in the injection mold, and then the socket body 1 is formed by injection molding. The end connector 201 is fixed in the socket body 1 through injection molding, which simplifies the manufacturing process and provides a better fixing effect for the end connector 201. Furthermore, the socket body 1 encloses the grounding element 2, which can reduce the probability of accidental contact. When the end connector 201 is located in the first mounting hole 3, the enclosure of the grounding element 2 by the socket body 1 is even better, which is conducive to further improving the reliability of grounding.

[0035] In one embodiment, the grounding element 2 is provided with multiple end connectors 201, each of which is electrically connected to a grounding pin 202. The socket body 1 is provided with multiple first mounting holes 3, and the positions of the first mounting holes 3 and the second mounting holes 4 of the end connectors 201 correspond one-to-one. Multiple end connectors 201 increase the contact points between the grounding element 2 and the motor housing 5, which is beneficial to improving the reliability of the electrical connection between the grounding element 2 and the motor housing 5. In this embodiment, the structures of the end connectors 201 can be the same or different. In another embodiment, the grounding element 2 may also be provided with only one end connector 201, which simplifies manufacturing and assembly.

[0036] In one embodiment, such as Figure 1 As shown, the socket also includes power pins and signal pins. The socket body 1 has a plug interface 102. The ground pin 202, power pin, and signal pin are all located in the plug interface 102, and the end connector 201 is located outside the plug interface 102. The ground pin 202 being located inside the plug interface 102 and the end connector 201 being located outside the plug interface 102 avoids the end connector 201 interfering with the electrical connection between the plug and the socket. In this embodiment, the pin can be, but is not limited to, used for connecting an encoder inside a motor. In this embodiment, the power pin can be used to connect the three-phase windings inside the motor.

[0037] In one embodiment, such as Figure 3 As shown, when the end connector 201 is cylindrical, it may include a main body 205 and a flange 206 located at one end of the main body 205. The end face of the flange 206 away from the main body 205 is a first end face, and the outer diameter of the first end face is larger than the outer diameter of the main body 205. The larger outer diameter of the first end face results in a larger contact area between the end connector 201 and the motor housing 5 when they are directly electrically connected, leading to higher reliability of the electrical connection. In some embodiments, the flange 206 may also be of other shapes to increase the contact area with the motor housing 5. In some applications, the end connector 201 may not have a flange 206, allowing the outer diameter of the cylindrical end connector 201 to remain constant along the axial direction. In one embodiment, such as... Figure 1 As shown, the socket body 1 has mounting bosses 101 on at least one opposite side. At least a portion of the end connector 201 is exposed from the mounting bosses 101. The mounting bosses 101 have a plurality of first mounting holes 3. The mounting bosses 101 facilitate assembly. In this embodiment, one surface of the two opposite surfaces of the mounting bosses 101 can contact the motor housing 5, and the other surface can restrict the fastener 6 during assembly.

[0038] In one embodiment, when the end connector 201 is installed in the first mounting hole 3, the end face of the end connector 201 near the motor housing 5 can be flush with the surface of the socket body 1. In some application scenarios, the end face of the end connector 201 near the motor housing 5 can also be below the surface of the socket body 1, and the end face of the end connector 201 is exposed. In order to achieve electrical contact with the motor housing 5, a boss structure can be provided at the corresponding part on the motor housing 5, so that the boss structure extends into the socket body 1 and contacts the end face of the end connector 201. The boss structure is provided with mounting holes that cooperate with the fixing member 6. At this time, the boss structure forms the installation positioning of the socket, and also helps to improve the sealing of the connection between the socket and the motor housing 5.

[0039] The motor socket in the above embodiment includes a grounding element 2. One end of the grounding element 2 is provided with an end connector 201. The second mounting hole 4 of the end connector 201 corresponds to the position of the first mounting hole 3 of the socket body 1, and is used for the fastener 6 to pass through to achieve contact and electrical connection between the end connector 201 and the motor housing 5. The fastener 6 has a fastening function, and the connection between the fastener 6 and the motor housing 5 is stable, which helps to improve the stability of the electrical connection between the end connector 201 and the motor housing 5, so that the motor housing 5 can be effectively grounded, which helps to reduce the possibility of electrical faults and electric shock hazards, and provides protection for the operation and use of the motor. Moreover, the second mounting hole 4 also helps to reduce material costs and assembly costs.

[0040] Please see Figures 1 to 5 This application embodiment also provides a motor, including: a motor housing 5, and a motor socket as described above, wherein the socket is fixedly connected to the motor housing 5 by a fixing member 6 passing through a first mounting hole 3, and at least one fixing member 6 passes through a second mounting hole 4 to electrically connect an end connector 201 to the motor housing 5.

[0041] The socket in this embodiment is the same as in the above embodiments, and the connection between the socket and the motor is also the same as in the above embodiments, so it will not be described again here. The motor in this embodiment may also have other functional structures, such as a stator and a rotor disposed in the stator. The windings of the stator can be powered through the socket. For example, it may also include an encoder, which can transmit signals through the socket, etc.

[0042] The motor provided in this embodiment includes a socket, wherein one end of the grounding element 2 is provided with an end connector 201. The second mounting hole 4 of the end connector 201 corresponds to the first mounting hole 3 of the socket body 1, and is used for the fastener 6 to pass through to achieve contact and electrical connection between the end connector 201 and the motor housing 5. The fastener 6 has a fastening function, and the connection between the fastener 6 and the motor housing 5 is stable, which helps to improve the stability of the electrical connection between the end connector 201 and the motor housing 5, so that the motor housing 5 can be effectively grounded, which helps to reduce the possibility of electrical faults and electric shock hazards, and provides protection for the operation and use of the motor.

[0043] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An electrical motor socket, characterised in that, The socket body is provided with a first mounting hole for the fixing member to pass through to fix the socket on the motor shell, and the end connecting member comprises a second mounting hole corresponding in position to the first mounting hole for the fixing member to pass through to realize the electrical connection between the end connecting member and the motor shell. The end connecting member is arranged in the first mounting hole, and one end of the end connecting member is exposed from the surface of the socket body close to the motor shell for contact and electrical connection with the motor shell.

2. The motor receptacle of claim 1, wherein, The end connecting member is in a cylindrical shape, the end connecting member is arranged in the first mounting hole, and the fixing member is a metal screw.

3. The motor receptacle of claim 1, wherein, The outer circumference of the end connecting member has a plurality of groove structures arranged in the circumferential direction, and the hole wall of the first mounting hole is correspondingly provided with a plurality of convex structures, and the groove structures and the convex structures are matched in concave-convex to form a limit.

4. The motor receptacle of claim 3, wherein, The end connecting member is arranged on the surface of the socket body away from the motor shell, the fixing member is a metal screw, the fixing member passes through the second mounting hole, the first mounting hole in sequence, and is fixedly connected with the motor shell.

5. The motor receptacle of claim 1, wherein, The grounding element is an integral molding structure.

6. An electrical machine socket according to any one of claims 1 to 5, wherein, The socket body is an integral injection molding structure, and the socket body is fixedly connected with the grounding element through injection molding.

7. An electrical machine socket according to any one of claims 1 to 5, wherein, The grounding element is provided with a plurality of end connecting members, each of the end connecting members is electrically connected with the grounding pin, the socket body is provided with a plurality of first mounting holes, and the first mounting holes correspond one by one in position to the second mounting holes of the end connecting members.

8. An electrical machine socket according to any one of claims 1 to 5, wherein, The socket further comprises power pins and signal pins, the socket body is provided with a plug interface, the grounding pins, the power pins and the signal pins are located in the plug interface, and the end connecting member is located outside the plug interface.

9. An electrical machine socket according to any one of claims 1 to 5, wherein, The motor shell is provided with a motor socket according to any one of claims 1-9, the socket is fixedly connected with the motor shell through the fixing member passing through the first mounting hole, and at least one fixing member passes through the second mounting hole to electrically connect the end connecting member with the motor shell.

10. An electric machine characterized by ​

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