Connector, electrical device and electric vehicle

Abstract

The utility model discloses a connector, an electrical device and an electric vehicle. The connector includes: a main body extending in a longitudinal direction; the conductive terminal is at least partially accommodated in the main body; a shield mounted on an outer surface of the main body; and the terminal locking piece is used for locking a conductive terminal in the main body, and the terminal locking piece is mounted on the main body in a manner of being located outside the coverage range of the shielding piece.

Description

Technical Field

[0001] The utility model relates to a connector, an electrical device and an electric vehicle. Background Art

[0002] A connector is a device used to connect two active devices to transmit current or signals. Connectors can simplify the assembly process of electronic products and also simplify the mass production process of electronic products. Connectors are easy to repair. If an electronic component fails, the failed component can be quickly replaced with a connector. With technological advances, electronic products equipped with connectors can update electronic components and replace old electronic components with new and better-performing electronic components for easy upgrading. Connectors can improve the flexibility of product design when designing and integrating new products and when electronic components are used to form a system. Therefore, connectors are widely used in transportation, medical, aerospace, military, home appliances and other fields.

[0003] The basic performance of connectors can be divided into three categories: mechanical performance, electrical performance and environmental performance.

[0004] Insertion and extraction force and mechanical life are important mechanical properties. The insertion and extraction force and mechanical life of the connector are related to the contact structure (positive pressure), the quality of the contact coating (sliding friction coefficient) and the contact arrangement size accuracy (alignment).

[0005] The main electrical properties of connectors include contact resistance, insulation resistance and dielectric strength. Among them, high-quality electrical connectors should have low and stable contact resistance, which ranges from a few milliohms to tens of milliohms; insulation resistance is an indicator of the insulation performance between the contacts of the electrical connector and between the contacts and the shell, and the order of magnitude of insulation resistance ranges from hundreds of megohms to thousands of megohms; dielectric strength is the ability to withstand the rated test voltage between the contacts of the connector or between the contacts and the shell.

[0006] Environmental performance includes temperature resistance, moisture resistance, salt spray resistance, vibration and impact resistance, etc.

[0007] The development of connector technology presents the following characteristics: high-speed and digital signal transmission, integration of various signal transmissions, miniaturization of product size, low-cost products, modular combination, convenient plugging and unplugging, etc.

[0008] In high-voltage electrical connectors for electric vehicles, terminal locking members are usually used to lock the position of the conductive terminal. However, the terminal locking members are usually covered by shielding members used to shield the electromagnetic radiation of the high-voltage electrical connector, resulting in that after the high-voltage electrical connector is assembled, the conductive terminal cannot be removed from the high-voltage electrical connector to replace the cable connected to the conductive terminal, so that the high-voltage electrical connector can only be used for one type of cable, which greatly limits the application scope of the high-voltage electrical connector. And after the cable is short-circuited or broken, it is difficult to be replaced with other cables, resulting in high maintenance and use costs of the high-voltage electrical connector. Utility Model Content

[0009] The utility model aims to provide a connector for easily replacing a cable connected to a conductive terminal, an electrical device comprising the connector, and an electric vehicle.

[0010] According to one aspect of the utility model, a connector is provided, comprising: a main body extending in a longitudinal direction; a conductive terminal at least partially accommodated in the main body; a shielding member mounted on an outer surface of the main body; and a terminal locking member for locking the conductive terminal in the main body, wherein the terminal locking member is mounted on the main body in a manner outside the coverage of the shielding member.

[0011] According to one aspect of the utility model, the main body is provided with a mounting groove located outside the coverage range of the shielding member, and the terminal locking member is installed in the mounting groove.

[0012] According to one aspect of the utility model, the conductive terminal includes a first conductive terminal and a second conductive terminal; the terminal locking piece includes: a first arm and a second arm, respectively extending along a transverse direction orthogonal to the longitudinal direction; a connecting portion, connected between the first arm and the second arm; wherein the first arm is provided with a first locking portion, the first locking portion presses against the first conductive terminal when the terminal locking piece is fully inserted into the mounting groove to lock the first conductive terminal in the main body; and the second arm is provided with a second locking portion, the second locking portion presses against the second conductive terminal when the terminal locking piece is fully inserted into the mounting groove to lock the second conductive terminal in the main body.

[0013] According to one aspect of the utility model, the first arm is also provided with a first unlocking portion configured to be recessed, and the first unlocking portion is aligned with the first conductive terminal when the terminal locking piece is partially inserted into the mounting groove to unlock the first conductive terminal from the main body; and the second arm is also provided with a second unlocking portion configured to be recessed, and the second unlocking portion is aligned with the second conductive terminal when the terminal locking piece is partially inserted into the mounting groove to unlock the second conductive terminal from the main body.

[0014] According to one aspect of the utility model, the mounting groove includes: a first mounting channel for accommodating a first arm inserted therein and provided with a first unlocking protrusion and a first locking protrusion; wherein the first arm is provided with a hook-shaped first free end, and the first free end is configured to: when the terminal locking piece is fully inserted into the mounting groove, abut against a side of the first locking protrusion facing away from the first unlocking protrusion to limit the first arm to a position locking the first conductive terminal; and when the terminal locking piece is partially inserted into the mounting groove, abut between the first locking protrusion and the first unlocking protrusion to limit the first arm to a position capable of unlocking the first conductive terminal from the main body.

[0015] According to one aspect of the utility model, the mounting groove includes: a second mounting channel for accommodating a second arm inserted therein and provided with a second unlocking protrusion and a second locking protrusion; wherein the second arm is provided with a hook-shaped second free end, and the second free end is configured to: when the terminal locking piece is fully inserted into the mounting groove, abut against a side of the second locking protrusion facing away from the second unlocking protrusion to limit the second arm to a position locking the second conductive terminal; and when the terminal locking piece is partially inserted into the mounting groove, abut between the second locking protrusion and the second unlocking protrusion to limit the second arm to a position capable of unlocking the second conductive terminal from the main body.

[0016] According to one aspect of the utility model, the connector also includes: a first signal terminal and a second signal terminal, which are respectively accommodated in the first signal channel and the second signal channel of the main body; the mounting groove also includes: a first positioning groove, located at the end of the first signal channel; and a second positioning groove, located at the end of the second signal channel; the connecting portion extends beyond the plane defined by the first arm and the second arm, and is provided with: a first positioning protrusion and a second positioning protrusion, which extend from the connecting portion along the lateral direction respectively; wherein the first positioning protrusion is configured to be accommodated in the first positioning groove when the terminal locking piece is fully inserted into the mounting groove to prevent the first signal terminal from being removed from the first signal channel; and the second positioning protrusion is configured to be accommodated in the second positioning groove when the terminal locking piece is fully inserted into the mounting groove to prevent the second signal terminal from being removed from the second signal channel.

[0017] According to one aspect of the utility model, the connector is provided in the body with: a first conductive channel extending along the longitudinal direction to at least partially accommodate the first conductive terminal; and a second conductive channel extending along the longitudinal direction to at least partially accommodate the second conductive terminal.

[0018] According to one aspect of the utility model, the first conductive channel is provided with a first through hole in its side wall, and the first through hole is configured to be aligned with the first locking portion when the terminal locking piece is fully inserted into the mounting groove, and to be aligned with the first unlocking portion when the terminal locking piece is partially inserted into the mounting groove; and the second conductive channel is provided with a second through hole in its side wall, and the second through hole is configured to be aligned with the second locking portion when the terminal locking piece is fully inserted into the mounting groove, and to be aligned with the second unlocking portion when the terminal locking piece is partially inserted into the mounting groove.

[0019] According to another aspect of the utility model, an electrical device is provided, comprising the connector according to any one of the above aspects.

[0020] According to yet another aspect of the utility model, an electric vehicle is provided, comprising the electrical device according to the above aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the embodiments described herein.

[0022] Figure 1 is a stereogram of a connector according to an embodiment of the utility model;

[0023] Figure 2 is along Figure 1 A cross-sectional view of the connector taken along line II-II in FIG. 1 , wherein the terminal locking member is in a locked position fully inserted into the mounting groove, and for the sake of clarity, the conductive terminal is omitted in the figure to expose the conductive channel;

[0024] Figure 3 yes Figure 2 A cross-sectional view of a connector, wherein the terminal locking member is in an unlocked position partially inserted into the mounting groove, and for the sake of clarity, the conductive terminal is omitted in the figure to expose the conductive channel;

[0025] Figure 4 yes Figure 2 and 3 A perspective view of a terminal locking member used in;

[0026] Figure 5 yes Figure 1 A perspective view of the connector from another angle in FIG. 1 , showing a connecting portion of a terminal locking member; and

[0027] Figure 6 yes Figure 5 A three-dimensional view of the connector in FIG. 1 with the terminal locking member removed shows a mounting groove for mounting the terminal locking member.

[0028] The features of the utility model will become more apparent in the following detailed description in conjunction with the accompanying drawings, in which similar reference numerals always identify corresponding elements. In the accompanying drawings, similar reference numerals generally represent identical, functionally similar, and / or structurally similar elements. Unless otherwise specified, the drawings provided throughout the application should not be interpreted as drawings drawn to scale. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, the description of the known technology is omitted to avoid unnecessary confusion of the concept of the present invention.

[0031] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The term "comprising" used herein indicates the existence of features, steps, operations, but does not exclude the existence or addition of one or more other features.

[0032] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0033] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0034] The utility model discloses a connector 1000, an electrical device including the connector 1000, and an electric vehicle including the electrical device. The connector 1000 may be a high-voltage electrical connector for an electric vehicle.

[0035] See also Figures 1 to 6 The connector 1000 includes: a main body 100, conductive terminals 210, 220, a shielding member 300 and a terminal locking member 400. The main body 100 extends along a longitudinal direction D1. The conductive terminals 210, 220 are at least partially accommodated in the main body 100. The shielding member 300 is mounted on the outer surface of the main body 100. The terminal locking member 400 is used to lock the conductive terminals 210, 220 in the main body 100 to fix the positions of the conductive terminals 210, 220 and ensure the reliability of the electrical connection of the conductive terminals 210, 220. The terminal locking member 400 is mounted on the main body 100 in a manner outside the coverage of the shielding member 300, which makes it easy to remove the conductive terminals 210, 220 from the connector 1000 after the connector 1000 is assembled to replace the cables connected to the conductive terminals 210, 220, so that the connector 1000 can be applied to cables of more than one specification, greatly expanding the application range of the connector 1000. Furthermore, after a short circuit or a break occurs in the cable, it can be replaced with another good cable, which greatly reduces the maintenance cost and the use cost of the connector 1000.

[0036] See also Figure 6The main body 100 is provided with a mounting groove 110 located outside the coverage of the shielding member 300, and the terminal locking member 400 is installed in the mounting groove 110, so that the terminal locking member 400 is installed on the main body 100 in a manner of being located outside the coverage of the shielding member 300.

[0037] Return to see Figure 1 The conductive terminals 210 and 220 include a first conductive terminal 210 for electrically connecting a positive cable and a second conductive terminal 220 for electrically connecting a negative cable. Figures 2 to 3 The connector 1000 is provided with a first conductive channel 610 and a second conductive channel 620 in the main body 100. The first conductive channel 610 extends along the longitudinal direction D1 to at least partially accommodate the first conductive terminal 210. The second conductive channel 620 extends along the longitudinal direction D1 to at least partially accommodate the second conductive terminal 220.

[0038] See also Figures 2 to 4 The terminal locking member 400 is configured to be substantially C-shaped, and includes: a first arm 410, a second arm 420, and a connecting portion 430. The first arm 410 and the second arm 420 extend respectively along a transverse direction D2 orthogonal to the longitudinal direction D1. The connecting portion 430 is connected between the first arm 410 and the second arm 420. The first arm 410 is provided with a first locking portion 411, and the first locking portion 411 is pressed against the first conductive terminal 210 when the terminal locking member 400 is fully inserted into the mounting groove 110, so as to lock the first conductive terminal 210 in the body 100, thereby fixing the position of the first conductive terminal 210. The second arm 420 is provided with a second locking portion 421, and the second locking portion 421 is pressed against the second conductive terminal 220 when the terminal locking member 400 is fully inserted into the mounting groove 110, so as to lock the second conductive terminal 220 in the body 100, thereby fixing the position of the second conductive terminal 220.

[0039] Continue to see Figures 2 to 4 The first arm 410 is also provided with a first unlocking portion 412 configured to be recessed. When the terminal locking member 400 is partially inserted into the mounting groove 110, the first unlocking portion 412 is aligned with the first conductive terminal 210 to unlock the first conductive terminal 210 from the main body 100, thereby facilitating the replacement of the cable electrically connected to the first conductive terminal 210. The second arm 420 is also provided with a second unlocking portion 422 configured to be recessed. When the terminal locking member 400 is partially inserted into the mounting groove 110, the second unlocking portion 422 is aligned with the second conductive terminal 220 to unlock the second conductive terminal 220 from the main body 100, thereby facilitating the replacement of the cable electrically connected to the second conductive terminal 220.

[0040] See also Figure 2 , 3 6. The mounting groove 110 includes: a first mounting channel 111 for accommodating the first arm 410 inserted therein and provided with a first unlocking protrusion 1111 and a first locking protrusion 1112 .

[0041] The first arm 410 is provided with a hook-shaped first free end 413, and the first free end 413 is configured to: when the terminal locking piece 400 is fully inserted into the mounting groove 110, abut against the side of the first locking protrusion 1112 facing away from the first unlocking protrusion 1111 to limit the first arm 410 to a position locking the first conductive terminal 210; and when the terminal locking piece 400 is partially inserted into the mounting groove 110, abut against the first locking protrusion 1112 and the first unlocking protrusion 1111 to limit the first arm 410 to a position capable of unlocking the first conductive terminal 210 from the main body 100.

[0042] Continue to see Figure 2 , 3 6. The mounting groove 110 includes: a second mounting channel 112 for accommodating the second arm 420 inserted therein and provided with a second unlocking protrusion 1121 and a second locking protrusion 1122.

[0043] The second arm 420 is provided with a hook-shaped second free end 423, and the second free end 423 is configured to: when the terminal locking piece 400 is fully inserted into the mounting groove 110, abut against the side of the second locking protrusion 1122 facing away from the second unlocking protrusion 1121 to limit the second arm 420 to a position for locking the second conductive terminal 220; and when the terminal locking piece 400 is partially inserted into the mounting groove 110, abut against between the second locking protrusion 1122 and the second unlocking protrusion 1121 to limit the second arm 420 to a position capable of unlocking the second conductive terminal 220 from the main body 100.

[0044] Return to see Figure 1 , the connector 1000 further includes: a first signal terminal and a second signal terminal (for clarity, Figure 1 ), which are respectively accommodated in the first signal channel 510 and the second signal channel 520 of the main body 100. After the first signal terminal and the second signal terminal are connected to the signal, the first conductive terminal 210 and the second conductive terminal 220 are supplied with current.

[0045] Return to see Figure 6The mounting slot 110 further includes: a first positioning slot 113 and a second positioning slot 114. The first positioning slot 113 is located at the end of the first signal channel 510. The second positioning slot 114 is located at the end of the second signal channel 520. The connecting portion 430 extends outside the plane defined by the first arm 410 and the second arm 420, and is provided with: a first positioning protrusion 431 and a second positioning protrusion 432 (see Figure 4 ), respectively extending from the connecting portion 430 along the transverse direction D2.

[0046] The first positioning protrusion 431 is configured to be received in the first positioning groove 113 when the terminal locking member 400 is fully inserted into the mounting groove 110, so as to prevent the first signal terminal from being removed from the first signal channel 510. The second positioning protrusion 432 is configured to be received in the second positioning groove 114 when the terminal locking member 400 is fully inserted into the mounting groove 110, so as to prevent the second signal terminal from being removed from the second signal channel 520.

[0047] The first conductive channel 610 is provided with a first through hole 611 in its side wall, and the first through hole 611 is configured to align with the first locking portion 411 when the terminal locking member 400 is fully inserted into the mounting groove 110 (see Figure 2 ) to lock the first conductive terminal 210, and to align with the first unlocking portion 412 when the terminal locking member 400 is partially inserted into the mounting groove 110 (see Figure 3 ) to unlock the first conductive terminal 210.

[0048] The second conductive channel 620 is provided with a second through hole 621 in its side wall, and the second through hole 621 is configured to align with the second locking portion 421 when the terminal locking member 400 is fully inserted into the mounting groove 110 (see Figure 2 ) to lock the second conductive terminal 220, and to align with the second unlocking portion 422 when the terminal locking member 400 is partially inserted into the mounting groove 110 (see Figure 3 ) to unlock the second conductive terminal 220.

[0049] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0050] It should also be noted that, in the specific embodiments of the present invention, unless otherwise indicated, the numerical parameters in this specification and the attached claims are approximate values ​​and can be changed according to the desired characteristics obtained through the content of the present invention. Specifically, all numbers used in the specification and claims to express the size, range conditions, etc. of the composition should be understood to be modified by the term "about" in all cases. In general, the meaning of the expression refers to the change of ±10% in some embodiments, ±5% in some embodiments, ±1% in some embodiments, and ±0.5% in some embodiments by a specific number.

[0051] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0052] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connector, characterized in that: include: a main body extending in a longitudinal direction; a conductive terminal at least partially received in the body; a shielding member mounted on an outer surface of the main body; and A terminal locking member for locking the conductive terminal in the body, and comprising: a first arm and a second arm, respectively extending in a transverse direction orthogonal to the longitudinal direction; and a connecting portion connected between the first arm and the second arm; The terminal locking member is installed on the main body in a manner of being located outside the coverage of the shielding member.

2. The connector according to claim 1, characterized in that: The main body is provided with a mounting groove located outside the coverage range of the shielding member, and the terminal locking member is mounted in the mounting groove.

3. The connector according to claim 2, characterized in that: The conductive terminal comprises a first conductive terminal and a second conductive terminal; Wherein, the first arm is provided with a first locking portion, which presses against the first conductive terminal when the terminal locking piece is fully inserted into the mounting groove to lock the first conductive terminal in the main body; and the second arm is provided with a second locking portion, which presses against the second conductive terminal when the terminal locking piece is fully inserted into the mounting groove to lock the second conductive terminal in the main body.

4. The connector according to claim 3, characterized in that: The first arm is further provided with a first unlocking portion configured to be recessed, the first unlocking portion being aligned with the first conductive terminal when the terminal locking member is partially inserted into the mounting groove to unlock the first conductive terminal from the body; The second arm is further provided with a second unlocking portion configured to be recessed, and the second unlocking portion is aligned with the second conductive terminal when the terminal locking member is partially inserted into the mounting groove to unlock the second conductive terminal from the body.

5. The connector according to claim 4, characterized in that: The mounting slot comprises: a first mounting channel, for receiving the first arm inserted therein and provided with a first unlocking protrusion and a first locking protrusion; The first arm is provided with a hook-shaped first free end, and the first free end is configured as follows: When the terminal locking member is fully inserted into the mounting groove, the terminal locking member abuts against a side of the first locking protrusion that is away from the first unlocking protrusion, so as to limit the first arm to a position for locking the first conductive terminal; and When the terminal locking member is partially inserted into the mounting groove, the terminal locking member abuts between the first locking protrusion and the first unlocking protrusion to restrict the first arm to a position capable of unlocking the first conductive terminal from the body.

6. The connector according to claim 4 or 5, characterized in that: The mounting slot comprises: a second mounting channel, for receiving the second arm inserted therein and provided with a second unlocking protrusion and a second locking protrusion; Wherein, the second arm is provided with a hook-shaped second free end, and the second free end is configured as follows: When the terminal locking member is fully inserted into the mounting groove, the terminal locking member abuts against a side of the second locking protrusion that is away from the second unlocking protrusion, so as to limit the second arm to a position for locking the second conductive terminal; and When the terminal locking member is partially inserted into the mounting groove, the terminal locking member abuts between the second locking protrusion and the second unlocking protrusion to limit the second arm to a position capable of unlocking the second conductive terminal from the body.

7. The connector according to claim 6, characterized in that: Also includes: A first signal terminal and a second signal terminal are respectively accommodated in a first signal channel and a second signal channel of the main body; The mounting slot further includes: a first positioning slot located at an end of the first signal channel; and a second positioning slot located at an end of the second signal channel; The connecting portion extends out of the plane defined by the first arm and the second arm, and is provided with: a first positioning protrusion and a second positioning protrusion, respectively extending from the connecting portion along the transverse direction; Wherein, the first positioning protrusion is configured to be accommodated in the first positioning groove when the terminal locking piece is fully inserted into the mounting groove to prevent the first signal terminal from being removed from the first signal channel; and the second positioning protrusion is configured to be accommodated in the second positioning groove when the terminal locking piece is fully inserted into the mounting groove to prevent the second signal terminal from being removed from the second signal channel.

8. The connector according to any one of claims 4 to 5 and 7, characterized in that: The connector is provided in the main body with: a first conductive channel extending along the longitudinal direction to at least partially accommodate the first conductive terminal; and The second conductive path extends along the longitudinal direction to at least partially accommodate the second conductive terminal.

9. The connector according to claim 8, characterized in that: The first conductive path is provided with a first through hole in a side wall thereof, the first through hole being configured to be aligned with the first locking portion when the terminal locking piece is fully inserted into the mounting groove, and to be aligned with the first unlocking portion when the terminal locking piece is partially inserted into the mounting groove; and The second conductive path is provided with a second through hole in a side wall thereof, and the second through hole is configured to be aligned with the second locking portion when the terminal locking piece is fully inserted into the mounting groove, and to be aligned with the second unlocking portion when the terminal locking piece is partially inserted into the mounting groove.

10. An electrical device, characterized in that: Comprising a connector according to any one of claims 1 to 9.

11. An electric vehicle, characterized in that: Comprising an electrical device according to claim 10.

Images