Connector

Abstract

The invention provides a connector comprising a body, the body is provided with a first accommodating cavity, and the first accommodating cavity is provided with a circumferential inner wall; the terminal is accommodated in the first accommodating cavity, the terminal comprises a circumferential wall, and the circumferential wall forms a channel; and a first set of elastic arms disposed on the circumferential wall and extending toward the channel to electrically contact the pin terminals inserted into the channel. The connector can be suitable for different wire outlet directions of the conductive connecting part in different application scenes, and meets the requirements of signal transmission between the conductive connecting part and the cable.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic connection accessories, and in particular to a connector for electrically connecting a pin terminal to a cable. Background Art

[0002] There are already some connectors including terminals and bodies in the prior art, such as a wire-collecting terminal block connector. Among them, the terminal is used to connect cables, and the body is used to accommodate the terminal and realize the docking between the terminal and the pin terminal. However, limited by the structure of the terminal and the body, the fixing method of the terminal and the body in the prior art is relatively simple and not flexible enough. For example, due to the space limitations in different application scenarios, the connector is preferably applicable to various outlet directions from the pin terminals on the motor when realizing the wire-collecting function. Therefore, it is often not convenient for users to apply the existing connectors in different application scenarios. In addition, the plug-in and pull-out force required when the existing terminal is plugged into the pin terminal is often large. Therefore, there is an urgent need for a connector with stronger applicability, relatively small plug-in and pull-out force, and reliable electrical connection. The fixing method between the terminal and the body in this connector should be more flexible to meet different requirements in the outlet direction. Summary of the invention

[0003] The purpose of the present disclosure is to solve at least one aspect of the above-mentioned problems and defects existing in the prior art. Based on this, the first aspect of the present disclosure provides a connector, characterized in that it includes: a body, the body has a first accommodating cavity, the first accommodating cavity has a circumferential inner wall; and a terminal, the terminal is accommodated in the first accommodating cavity, the terminal includes: a circumferential wall, the circumferential wall forms a channel; and a first group of elastic arms, which are arranged on the circumferential wall and extend toward the channel to electrically contact with the pin terminal inserted into the channel.

[0004] In one embodiment, the terminal is rotatable in the first accommodating cavity around the axial direction of the circumferential wall.

[0005] In one embodiment, the terminal further includes a crimping portion, which is located at the first end of the circumferential wall and is used for crimping a cable.

[0006] In one embodiment, the terminal further includes: a second group of elastic arms, which are arranged on the circumferential wall and extend toward the channel; wherein, compared with the first group of elastic arms, the second group of elastic arms are distributed along the axial direction of the circumferential wall, and after the pin terminal is inserted into the channel, the pin terminal is also in electrical contact with the second group of elastic arms.

[0007] In one embodiment, the first group of elastic arms includes at least three elastic arms, and the second group of elastic arms includes at least three elastic arms.

[0008] In one embodiment, the circumferential wall also includes a second end opposite to the first end, the first group of elastic arms is closer to the first end than the second group of elastic arms, the first group of elastic arms also extends toward the first end, and the second group of elastic arms also extends toward the second end.

[0009] In one embodiment, each elastic arm in the first group of elastic arms includes a first guide portion arranged at its free end, the first guide portions of the first group of elastic arms are parallel to and distributed around the axis direction, and each elastic arm in the second group of elastic arms includes a second guide portion arranged at its free end, the second guide portions of the second group of elastic arms are parallel to and distributed around the axis direction.

[0010] In one embodiment, the terminal further includes: a locking portion, which is disposed on the circumferential wall, away from the circumferential wall and extending in a direction from the second end to the first end, the locking portion being used to lock the terminal in the body.

[0011] In one embodiment, the body further includes a first plugging hole, which passes through a surface of the body and is in communication with the first accommodating cavity.

[0012] In one embodiment, the body also includes: a first locking cavity having a circumferential end wall, the first locking cavity being configured to receive a locking portion of the terminal to lock the terminal in the body, wherein a radius of the end wall of the first locking cavity is greater than a radius of a circumferential inner wall of the first accommodating cavity.

[0013] In one embodiment, the body further includes: a second accommodating cavity having a circumferential inner wall, which is configured to accommodate another terminal; and a second plug-in hole that passes through the surface of the body and is connected to the second accommodating cavity.

[0014] The above connector can be applied to different outlet directions of the conductive connection components in different application scenarios, meeting the signal transmission requirements between the conductive connection components and the cables. In addition, the connector requires less plugging and unplugging force during installation, and has higher reliability in electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The features, advantages and other aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown in an exemplary and non-limiting manner. In the accompanying drawings:

[0016] Figure 1 A schematic diagram of the internal structure of a connector according to an embodiment of the present disclosure is shown.

[0017] Figure 2A schematic diagram of the external structure of a terminal according to an embodiment of the present disclosure is shown.

[0018] Figure 3 A schematic diagram of the internal structure of a terminal according to an embodiment of the present disclosure is shown.

[0019] Figure 4 A schematic diagram of the external structure of a terminal according to an embodiment of the present disclosure at another angle is shown.

[0020] Figure 5 A schematic diagram of a terminal connecting pin terminal according to an embodiment of the present disclosure is shown.

[0021] Figure 6 Shows Figure 1 A magnified schematic diagram of area a.

[0022] Figure 7 An external schematic diagram of a body according to an embodiment of the present disclosure is shown.

[0023] Figure 8 An external schematic diagram of a connector according to an embodiment of the present disclosure is shown.

[0024] Fig. 9 A schematic diagram showing a connector connecting a cable and a pin terminal is shown, and the schematic diagram is from an embodiment of the present disclosure.

[0025] Fig.10 A schematic diagram showing a terminal connection cable and a pin terminal of a connector is shown, and the schematic diagram is from an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0027] The terms "including", "comprising" and similar terms used herein should be understood as open terms, i.e., "including / including but not limited to", indicating that other contents may also be included. The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment", and so on.

[0028] The present disclosure provides a connector. Figure 1A schematic diagram of the internal structure of a connector according to an embodiment of the present disclosure is shown. The connector 10 includes a body 20 and a terminal 30. The body 20 can be made of plastic, and the terminal 30 can be made of a copper alloy such as brass or phosphor bronze. The body 20 has a first accommodating cavity 201, and the first accommodating cavity 201 has a circumferential inner wall. The terminal 30 is accommodated in the first accommodating cavity 201. The terminal 30 includes a circumferential wall 301 and a first group of elastic arms 302. The circumferential wall 301 forms a channel. The first group of elastic arms 302 is arranged on the circumferential wall 301 and extends toward the channel to make electrical contact with the pin terminal inserted into the channel. Since the external structure of the terminal 30 is approximately cylindrical, and the first accommodating cavity 201 accommodating the terminal 30 also has an approximately cylindrical inner cavity, the terminal 30 can be fixed in the first accommodating cavity 201 relatively flexibly, that is, the terminal 30 can be in the first accommodating cavity 201 with its circumferential wall 301 in the axial direction 310 (refer to the following) of the axial direction 310 (refer to the following) of the circumferential wall 301. Figure 3 ) is the center of rotation.

[0029] Further, Figure 2 A schematic diagram of the external structure of a terminal according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of the internal structure of the terminal is shown. Figure 4 A schematic diagram of the external structure of the terminal at another angle is shown. Figure 5 A schematic diagram showing the connection pin terminals of the terminal. Figure 2 and Figure 5 The terminal 30 also includes a crimping portion. The crimping portion is located at the first end 311 of the circumferential wall 301 and is used to crimp the cable 50. Specifically, the crimping portion includes a first crimping portion 303 and a second crimping portion 304, both of which are composed of a U-shaped base and flanks extending from both sides of the U-shaped base. After stripping the outer insulating skin of the cable 50, the exposed conductive wire core is placed in the U-shaped base, and the flanks of the first crimping portion 303 and the second crimping portion 304 are bent respectively to contact and fix them, so as to achieve a reliable electrical connection between the cable 50 and the crimping portion.

[0030] refer to Figure 2 , Figure 3 and Figure 5 The terminal 30 further includes a second group of elastic arms 305. The second group of elastic arms 305 are arranged on the circumferential wall 301 and extend toward the channel. Among them, the second group of elastic arms 305 are distributed along the axial direction 310 of the circumferential wall 301 compared with the first group of elastic arms 302. After the pin terminal 40 is inserted into the channel, the pin terminal 40 is also in electrical contact with the second group of elastic arms 305. In other words, in the process of entering the channel, the pin terminal 40 sequentially contacts with the second group of elastic arms 305 and the first group of elastic arms 302, which not only ensures the electrical connection effect between the terminal 30 and the pin terminal 40, but also reduces the plugging and unplugging force required for the terminal 30, which is more convenient for users to use.

[0031] The first group of elastic arms 302 and the second group of elastic arms 305 can be formed by bending the parts cut out from the circumferential wall 301. In the present embodiment, the first group of elastic arms 302 includes three elastic arms, and the second group of elastic arms 305 includes three elastic arms. The provision of multiple elastic arms can provide multiple contact points for the electrical connection of the terminal 30, which contributes to the stability of the contact and is more suitable for large current transmission. In other examples, the first group of elastic arms 302 can include more than three elastic arms, and the second group of elastic arms 305 also includes more than three elastic arms.

[0032] refer to Figure 3 , the circumferential wall 301 also includes a second end 312 opposite to the first end 311. The first group of elastic arms 302 is closer to the first end 311 than the second group of elastic arms 305. Among them, the first group of elastic arms 302 also extends in the direction of the first end 311, and the second group of elastic arms 305 also extends in the direction of the second end 312. When the pin terminal 40 is inserted into the channel of the terminal 30, the pin terminal 40 first contacts the second group of elastic arms 305. Since the extension direction of the second group of elastic arms 305 is partially opposite to the insertion direction of the pin terminal 40, and the second group of elastic arms 305 extend at a certain angle in the channel, the second group of elastic arms 305 can limit the insertion angle of the pin terminal 40 to avoid skewed insertion. As the pin terminal 40 is further inserted, the pin terminal 40 contacts the first group of elastic arms 302. Since the extension direction of the first group of elastic arms 302 is partially the same as the insertion direction of the pin terminal 40, the pin terminal 40 is easy to cooperate with the first group of elastic arms 302 to ensure the electrical connection effect.

[0033] refer to Figure 2 , Figure 3 and Figure 4 , each elastic arm in the first group of elastic arms 302 includes a first guide portion 306 arranged at its free end. The first guide portion 306 is parallel to the axial direction 310 and is distributed around the axial direction 310. Each elastic arm in the second group of elastic arms 305 includes a second guide portion 307 arranged at its free end. The second guide portion 307 is parallel to the axial direction 310 and is distributed around the axial direction 310. The first guide portion 306 and the second guide portion 307 provide contact points between the terminal 30 and the pin terminal 40, and can guide the pin terminal 40 to be inserted forward in the channel. In this embodiment, considering that the cross-section of the pin terminal 40 is circular, in order to increase the contact area between the elastic arm and the pin terminal 40, the guide portion of the elastic arm is set to have an arc-shaped curved surface to fit with the pin terminal 40. In other examples, for ease of processing, the guide portion can also be set as a contact plane.

[0034] Figure 6 Shows Figure 1 A magnified schematic diagram of area a in the middle. Figure 1 and Figure 6 , it can be observed that the terminal 30 also includes a locking portion 308. The locking portion 308 is arranged on the circumferential wall 301, which is away from the circumferential wall 301 and extends in the direction from the second end 312 to the first end 311. The locking portion 308 is used to lock the terminal 30 in the body 20. The locking portion 308 can be an elastic element, and the other end thereof is a free end. In the process of inserting the terminal 30 into the body 20, the free end of the locking portion 308 needs to be stored inwardly first. As the terminal 30 moves downward into the first accommodating cavity 201 of the body 20, the locking portion 308 of the terminal 30 will automatically open and seat in the first locking cavity 202 of the body 20 to prevent the terminal 30 from withdrawing from the body 20.

[0035] Correspondingly, continue to refer to Figure 1 and Figure 6 , the body 20 includes a first locking cavity 202. The first locking cavity 202 has a circumferential end wall 203, and the first locking cavity 202 is configured to receive the locking portion 308 of the terminal 30 to lock the terminal 30 in the body 20. The radius of the end wall 203 of the first locking cavity 202 is greater than the radius of the circumferential inner wall of the first accommodating cavity 201. When the terminal 30 enters the body 20, the locking portion 308 of the terminal 30 opens and abuts against the end wall 203 of the first locking cavity 202, so that the terminal 30 is fixed in the body 20. In this embodiment, the first locking cavity 202 is a cylindrical groove, and in other examples, the first locking cavity 202 can be a groove of other shapes.

[0036] Figure 7 An external schematic diagram of a body according to an embodiment of the present disclosure is shown, wherein the bottom surface of the body faces upward, exposing the plugging hole of the body. Figure 8 FIG. 1 shows an external schematic diagram of a connector according to an embodiment of the present disclosure, wherein a terminal of the connector is connected to a cable. Figure 1 , Figure 7 and Figure 8, the body 20 also includes a first plug hole 204, which runs through the surface of the body 20 and communicates with the first accommodating cavity 201. The first plug hole 204 allows the pin terminal 40 to pass through it and then be inserted into the channel of the terminal 30, so that the pin terminal 40 and the terminal 30 are in electrical contact. Optionally, the body also includes a second accommodating cavity 205 and a second plug hole 206. The second accommodating cavity 205 has a circumferential inner wall, which is configured to accommodate another terminal. The second plug hole 206 runs through the surface of the body 20 and is connected to the second accommodating cavity 206. In other embodiments, the body 20 can have any number of accommodating cavities and plug holes to accommodate any number of terminals, and enable the terminals to be plugged in with the corresponding pin terminals. In this embodiment, the body also includes a third accommodating cavity (not shown) and a third plug hole 207. The third accommodating cavity has a circumferential inner wall, which is configured to accommodate another terminal. The third plug hole 207 runs through the surface of the body 20 and is connected to the third accommodating cavity.

[0037] Fig. 9 A schematic diagram of a connector according to an embodiment of the present disclosure is shown, the connector connecting a cable and a pin terminal. Fig.10 A schematic diagram showing the connector's terminal connections to the cable and pin terminals. Fig. 9 and Fig.10 The connector 10 in this embodiment specifically includes a first terminal 30, a second terminal 32, and a third terminal 34, which are respectively connected to one end of the cable 50, the cable 52, and the cable 54. The body 20 of the connector 10 includes a first accommodating cavity 201, a second accommodating cavity 205, a third accommodating cavity, a first plug hole 204, a second plug hole 206, and a third plug hole 207. The first accommodating cavity 201, the second accommodating cavity 205, and the third accommodating cavity accommodate the first terminal 30, the second terminal 32, and the third terminal 34, respectively. When the conductive connection component 46 is installed on the connector 10, the first pin terminal 40 passes through the first plug hole 204, and then contacts with the elastic arm of the first terminal 30 to form an electrical connection; the second pin terminal 42 passes through the second plug hole 206, and then contacts with the elastic arm of the second terminal 32 to form an electrical connection; the third pin terminal 44 passes through the third plug hole 207, and then contacts with the elastic arm of the third terminal 34 to form an electrical connection. This allows one end of the cable 50, cable 52, and cable 54 to be electrically connected to one end of the first pin terminal 40, the second pin terminal 42, and the third pin terminal 44 of the conductive connection component 46 through the first terminal 30, the second terminal 32, and the third terminal 34. At the same time, the other ends of the cables 50, cable 52, and cable 54 are connected to the power supply, and the other ends of the first pin terminal 40, the second pin terminal 42, and the third pin terminal 44 are from the air compressor, so that the cables can provide power to the air compressor.

[0038] In actual application scenarios, the structure of the conductive connection component is fixed, and the electrical signals corresponding to the pin terminals are usually pre-set and difficult to change. In addition, the positions of the cables and the electrical signals respectively connected are often fixed. The connector proposed in the present disclosure provides higher flexibility for the electrical connection between the conductive connection component and the cable. Specifically, when the terminal connecting the cable is installed in the body, since the terminal and the accommodating cavity are both cylindrical, the terminal can be rotated in the accommodating cavity to adapt to the placement and direction of the cable. The body of the connector is preferably cylindrical, and the cylindrical body can be rotated around its axis to change the direction of the cable, and then installed on the conductive connection component. The connector can be suitable for different outlet directions of the conductive connection component in different application scenarios, meeting the requirements for signal transmission between the conductive connection component and the cable.

[0039] It should be understood that the above embodiments are used to illustrate the connector by taking the application scenario of an air compressor as an example, and the above connector can be applied to other suitable scenarios requiring electrical connection.

[0040] The foregoing discussion is merely the disclosure and description of the exemplary embodiments of the present invention. Through these discussions and the accompanying drawings and claims, those skilled in the art will readily appreciate that various changes, modifications and variations may be made to the present invention without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A connector, characterized in that: include: A body, wherein the body has a first accommodating cavity, and the first accommodating cavity has a circumferential inner wall; as well as A terminal is accommodated in the first accommodation cavity, and the terminal comprises: a circumferential wall, the circumferential wall forming a channel; as well as A first set of elastic arms are disposed on the circumferential wall and extend toward the passage to electrically contact with a pin terminal inserted into the passage.

2. The connector according to claim 1, characterized in that: The terminal is rotatable in the first accommodation cavity around the axial direction of the circumferential wall.

3. The connector according to claim 1, characterized in that: The terminal further comprises a crimping portion, which is located at the first end of the circumferential wall and is used for crimping a cable.

4. The connector according to claim 3, characterized in that: The terminal also includes: a second set of resilient arms disposed on the circumferential wall and extending toward the passage; Wherein, compared with the first group of elastic arms, the second group of elastic arms is distributed along the axial direction of the circumferential wall, and after the pin terminal is inserted into the channel, the pin terminal is still in electrical contact with the second group of elastic arms.

5. The connector according to claim 4, characterized in that: The first group of elastic arms includes at least three elastic arms, and the second group of elastic arms includes at least three elastic arms.

6. The terminal according to claim 4 or 5, characterized in that: The circumferential wall also includes a second end opposite to the first end, the first group of elastic arms is closer to the first end than the second group of elastic arms, the first group of elastic arms also extends toward the first end, and the second group of elastic arms also extends toward the second end.

7. The terminal according to claim 4 or 5, characterized in that: Each elastic arm in the first group of elastic arms includes a first guide portion arranged at its free end, the first guide portion of the first group of elastic arms is parallel to and distributed around the axial direction, and each elastic arm in the second group of elastic arms includes a second guide portion arranged at its free end, the second guide portion of the second group of elastic arms is parallel to and distributed around the axial direction.

8. The terminal according to claim 6, characterized in that: The terminal also includes: A locking portion is arranged on the circumferential wall, away from the circumferential wall and extending in a direction from the second end to the first end, and the locking portion is used to lock the terminal in the body.

9. The connector according to claim 1, characterized in that: The body further includes a first plugging hole, which passes through the surface of the body and is communicated with the first accommodating cavity.

10. The connector according to claim 8, characterized in that The body also includes: a first locking cavity having a circumferential end wall, the first locking cavity being configured to receive a locking portion of the terminal to lock the terminal in the body, Wherein, the radius of the end wall of the first locking cavity is greater than the radius of the circumferential inner wall of the first accommodating cavity.

11. The connector according to claim 9, characterized in that: The body also includes: A second receiving cavity having a circumferential inner wall configured to receive another terminal; The second plug hole passes through the surface of the body and is connected with the second accommodating cavity.

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