CN220066313U - Grounding structure of motor connector - Google Patents
Grounding structure of motor connector Download PDFInfo
- Publication number
- CN220066313U CN220066313U CN202321457172.2U CN202321457172U CN220066313U CN 220066313 U CN220066313 U CN 220066313U CN 202321457172 U CN202321457172 U CN 202321457172U CN 220066313 U CN220066313 U CN 220066313U
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- China
- Prior art keywords
- grounding
- motor
- base
- spring plate
- terminal
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- 238000005452 bending Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a grounding structure of a motor connector, which comprises a base fixedly arranged on a motor shell and a grounding terminal fixedly arranged on the base: the bottom end face of the base comprises an installation area and a contact area positioned outside the installation area, and a socket is arranged in the corresponding installation area of the base; the grounding terminal comprises a grounding pin and a grounding spring plate which are arranged in a bending mode, wherein the grounding spring plate is of a T-shaped structure and comprises a transverse portion located in a contact area and a vertical portion connected between the transverse portion and the grounding pin. The grounding terminal is simple and reasonable in structure, the grounding pin of the grounding terminal is connected with an external cable in a plugging manner, and the T-shaped grounding spring plate of the grounding terminal is clamped between the bottom of the base and the motor shell to realize the grounding protection of the motor, so that the contact area between the grounding spring plate and the motor shell and the multi-point redundant contact conduction structure are ensured, and the stability and reliability of the grounding effect of the motor are ensured.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a grounding structure of a motor connector.
Background
The servo motor is widely used in high-automation equipment as a high-precision power output device, and the servo motor is more required to have the protection performance and standardization of the motor, so that the modular manufacturing efficiency of the motor and the efficiency of manufacturing the motor are required to be improved; the grounding of the servo motor is crucial in motor design, and unreasonable or unreliable grounding can lead to accidents such as electric shock, interference and the like, and even casualties.
The existing servo motor is generally matched with a motor connector when in use, and the motor connector is connected with an internal loop in the servo motor through a cable from a servo unit, so that signal communication is carried out between the servo motor and the servo unit through the motor connector and the cable, and power is supplied to the servo motor; however, the existing servo motor and the motor connector are generally connected by adopting a separate lead structure, the wiring structure is troublesome to ground, and the appearance of the motor is damaged; or, the motor connector is penetrated through the grounding bolt assembly and is abutted against the motor shell to realize grounding, the size requirement is large, and the motor shell made of aluminum alloy materials inevitably generates oxidation corrosion in the use process, meanwhile, the contact surface between the grounding bolt assembly or a single grounding structure and the motor shell is small, and the grounding performance of the servo motor is easily deteriorated or lost due to metal fatigue, so that the motor connector has room for improvement.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a grounding structure of a motor connector, which realizes the grounding protection of a motor by splicing and connecting a grounding pin of a grounding terminal with an external cable and clamping a grounding spring piece of the grounding terminal between the bottom of a base and a motor shell; meanwhile, the grounding spring plate is of a T-shaped structure, so that the contact area between the grounding spring plate and the motor shell and the multi-point redundant elastic contact conduction structure are effectively ensured, and the stability and reliability of the motor grounding effect can be ensured.
In order to achieve the above object, the present utility model provides a grounding structure of a motor connector, including a base fixedly mounted on a motor housing, and a grounding terminal fixedly mounted on the base:
the base is provided with a socket for inserting a grounding terminal in the corresponding installation area;
the grounding terminal comprises a grounding pin and a grounding spring plate which are arranged in a bending mode, the grounding pin is fixedly inserted into the socket, the grounding spring plate is of a T-shaped structure and comprises a transverse portion located in a contact area and a vertical portion connected between the transverse portion and the grounding pin, and at least two contact points or contact lines or contact surfaces are formed between the transverse portion and the motor shell.
Further provided is that: the bottom end face of the base is provided with a T-shaped groove communicated with the socket, the grounding spring plate is embedded in the T-shaped groove, and the thickness of the transverse part is smaller than the groove depth of the T-shaped groove.
Further provided is that: the transverse part is correspondingly positioned on two side parts of the vertical part and is provided with at least one upturned pressing part or at least one salient point part through bending.
Further provided is that: the base is provided with a mounting hole for the bolt or the screw to pass through.
Compared with the prior art, the utility model is simple and reasonable, and improves the grounding performance by optimizing the design of the grounding terminal; meanwhile, the grounding pin of the grounding terminal is connected with an external cable in an inserting manner, and the grounding elastic piece of the grounding terminal is clamped between the bottom of the base and the motor shell to realize grounding protection of the motor; furthermore, the grounding spring plate is of a T-shaped structure, so that the contact area between the grounding spring plate and the motor shell and the conduction of multi-point redundant elastic contact are effectively ensured, and the stability and reliability of the motor grounding effect can be ensured.
Drawings
Fig. 1 is a schematic view (bottom) of a grounding structure of a motor connector according to the present utility model;
fig. 2 is a schematic drawing of the ground structure in isolation.
The following reference numerals are attached thereto in combination with the accompanying drawings:
100. a base; 110. an installation area; 111. a socket; 112. annular ribs; 120. a contact region; 121. a T-shaped groove; 122. an annular caulking groove; 123. a mounting hole; 200. a ground terminal; 210. grounding feet; 220. a grounding spring plate; 221. a transverse portion; 2211. a pressing part; 222. a vertical portion.
Description of the embodiments
One embodiment of the present utility model will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present utility model is not limited by the embodiment.
The grounding structure of the motor connector of the utility model is shown in fig. 1 and 2, and comprises a base 100 and a grounding terminal 200, wherein the base 100 is fixedly arranged on a motor shell (most of motor shells are aluminum alloy shells), the grounding terminal 200 is fixedly arranged on the base 100, one end of the grounding terminal is connected with the motor shell in an abutting manner, and the other end of the grounding terminal penetrates through the upper part of the base 100 and is connected with the ground through a wire, so that the grounding protection of the motor is realized.
In this embodiment, as shown in fig. 1 and 2, a bottom end surface of the base 100 corresponding to the motor casing includes a mounting area 110 located in the middle, and a contact area 120 located outside the mounting area 110 and used for being matched with the surface of the motor casing, where a socket 111 for inserting a ground terminal 200 is provided in the mounting area 110 corresponding to the base 100; the grounding terminal 200 is preferably in a 7-shaped structure and comprises a grounding pin 210 and a grounding spring piece 220 which are arranged in a right-angle bending manner, wherein the grounding pin 210 is fixedly inserted into the socket 111 of the base 100 and penetrates above the base 100, and the grounding spring piece 220 is in a T-shaped structure and comprises a transverse part 222 arranged below the contact area 120 and a vertical part 221 connected between the transverse part 222 and the grounding pin 210; when the base 100 is installed on the motor shell, the contact head of the grounding terminal 200 can be in plane contact with the motor shell, so that the contact area is effectively ensured, and the grounding effect and the grounding stability of the motor are ensured.
In the above-mentioned solution, preferably, the bottom end surface of the base 100 is correspondingly provided with a T-shaped slot 121 that is communicated with the socket 111 and is used for the insertion of the grounding spring 220, and the transverse portion 222 and the vertical portion 221 of the grounding spring 220 are respectively inserted into the transverse slot opening and the vertical slot opening of the T-shaped slot 121, where the thickness of the transverse portion 222 is smaller than the slot depth of the transverse slot opening of the T-shaped slot, so that the T-shaped slot has enough space to ensure the elasticity of the spring, and the spring is adjusted to ensure reliable contact with the motor housing by adjusting the spring height; preferably, the transverse portion 222 is formed with at least one upward tilting pressing portion 2211 or at least one bump portion by bending on two side portions of the vertical portion 221, so that at least two contact conducting positions can be formed between the transverse portion 222 and the motor housing, and stability and reliability of the grounding effect of the motor are ensured.
In the above scheme, preferably, the mounting area 110 at the bottom of the base 100 is a boss structure, or an annular protruding rib 112 for separation is arranged between the corresponding mounting area 110 at the bottom of the base 100 and the contact area 120, a connection terminal for connection with a circuit in a motor is also arranged in the corresponding mounting area 110 of the base 100, and an embedding opening for embedding the boss structure or the annular protruding rib 112 is correspondingly arranged on the motor housing, so that the embedding installation of the base 100 and the motor housing is facilitated, and the abutting connection between the transverse portion 222 of the grounding spring 220 in the contact area 120 and the motor housing is not influenced; preferably, an annular caulking groove 122 for embedding a sealing ring is arranged in a contact area 120 corresponding to the outer side of the T-shaped groove 121 at the bottom of the base 100, so that the waterproof and dustproof effects between the connector and the motor are ensured, and the IP67 protection grade requirement can be met; preferably, the base 100 is provided with mounting holes 123 for bolts or screws to pass through corresponding to the outer sides of the annular caulking groove 122.
Compared with the prior art, the utility model is simple and reasonable, and improves the grounding performance by optimizing the design of the grounding terminal; meanwhile, the grounding pin of the grounding terminal is connected with an external cable in an inserting manner, and the grounding elastic piece of the grounding terminal is clamped between the bottom of the base and the motor shell to realize grounding protection of the motor; furthermore, the grounding spring plate is of a T-shaped structure, so that the contact area between the grounding spring plate and the motor shell and the conduction of multi-point redundant elastic contact are effectively ensured, and the stability and reliability of the motor grounding effect can be ensured.
The above disclosure is merely an example of the present utility model, but the present utility model is not limited thereto, and any variations that can be considered by a person skilled in the art should fall within the protection scope of the present utility model.
Claims (4)
1. The utility model provides a grounding structure of motor connector which characterized in that, including fixed mounting on the motor casing's base, and fixed mounting is at the ground terminal on the base:
the base is provided with a socket for inserting a grounding terminal in the corresponding installation area;
the grounding terminal comprises a grounding pin and a grounding spring plate which are arranged in a bending mode, the grounding pin is fixedly inserted into the socket, the grounding spring plate is of a T-shaped structure and comprises a transverse portion located in a contact area and a vertical portion connected between the transverse portion and the grounding pin, and at least two contact points or contact lines or contact surfaces are formed between the transverse portion and the motor shell.
2. The grounding structure of a motor connector according to claim 1, wherein a T-shaped groove communicated with the socket is formed in the bottom end face of the base, the grounding spring plate is embedded in the T-shaped groove, and the thickness of the transverse portion is smaller than the groove depth of the T-shaped groove.
3. The grounding structure of a motor connector according to claim 1 or 2, wherein the transverse portion is formed with at least one upward-tilting pressing portion or at least one bump portion by bending on both side portions of the vertical portion.
4. The grounding structure of a motor connector as claimed in claim 1, wherein the base is provided with a mounting hole through which a bolt or a screw is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457172.2U CN220066313U (en) | 2023-06-08 | 2023-06-08 | Grounding structure of motor connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457172.2U CN220066313U (en) | 2023-06-08 | 2023-06-08 | Grounding structure of motor connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220066313U true CN220066313U (en) | 2023-11-21 |
Family
ID=88786164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321457172.2U Active CN220066313U (en) | 2023-06-08 | 2023-06-08 | Grounding structure of motor connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220066313U (en) |
-
2023
- 2023-06-08 CN CN202321457172.2U patent/CN220066313U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |