Charging terminal for charging socket, and charging socket

Abstract

A charging connection terminal 1 suitable for use in a charging socket and a charging socket including such a terminal 1. The charging connection terminal 1 comprises a main body 2, a first engagement

Description

TECHNICAL FIELD [oooi] The present application involves the field of charger technologies, and more particularly relates to a charging connection terminal for use in a charging socket, and a charging socket including such a terminal. BACKGROUND OF INVENTION

[0002] With increasing pressure on worldwide energy and the environment, the concept of energy saving and environmental protection has become important in various fields. For the automotive industry, compared with traditional fuel engine vehicles and gas engine vehicles, electric vehicles using a battery as a power source have gradually entered a wide range of practical stages due to their characteristics of cleanness and environmental protection. With gradual increase in the number of the electric vehicles, it is necessary to charge the battery frequently during the use of the electric vehicle, and a structure of a charging connection terminal of a charging socket in the vehicle has significant influence in application performance and service life of the charging socket. In the charging socket, the charging connection terminal is usually designed as a pluggable structure, and the charging connection terminal is subject to damage during multiple connections with and disconnections from the charging socket. In the prior art typically one end of the charging connection terminal of the charging socket is a female end electrically connected with an external power source, and the other end is riveted to a cable. The whole charging socket needs to be disconnected when the charging connection terminal needs to be repaired due to damage, therefore it is difficult to maintain and the maintenance cost is relatively high. SUMMARY OF rNVENTION

[0003] A purpose of the present invention is to provide a charging connection terminal for use in a charging socket, and a charging socket, that solve the technical problems that exist in the prior art, namely that it is difficult to maintain the charging socket and the maintenance cost is relatively high when the charging connection terminal of the charging socket needs to be repaired due to damage.

[0004] In order to achieve the above purpose, a technical solution adopted by the present application is defined in claim 1. A charging connection terminal is disclosed for use in a charging socket. The charging connection terminal can have a main body, a first engagement part and a second engagement part. The first engagement part is for pluggably connecting with a first mating terminal. The second engagement part is for engaging with a second mating terminal of an external charging device.

[0005] One end of the first engagement part is fixedly connected to the second engagement part, and another end of the first engagement part is a flat conductive sheet configured to pluggably connect with the first mating terminal.

[0006] In an embodiment, the first engagement part is provided with a guide structure disposed at a peripheral side wall of the conductive sheet.

[0007] In an embodiment, outer surfaces on both sides of the conductive sheet are electrical contact surfaces.

[0008] In an embodiment, the outer surfaces of the conductive sheet are provided with an anti-skid or anti-slip structure.

[0009] In an embodiment, the second engagement part is tubular, the second engagement part is provided with an upper end fixedly connected to the first engagement part and a bottom end opposite to the upper end, and a circumferential inner wall of the bottom end of the second engagement part is enclosed to form a tubular cavity configured to axially and plugably connect with the second mating terminal.

[00010] In an embodiment, the width of the first engagement part is smaller than a tubular outer diameter of the second engagement part.

[00011] A sealing member is provided on the charging connection terminal, and the sealing member includes a sealing ring surrounding and on an outer surface of the second engagement part and a sealing plug arranged inside the tubular cavity.

[00012] In an embodiment, the charging connection terminal is an integral piece formed by a sheet having uniform thickness.

[00013] In an embodiment, the first engagement part includes a conversion part and a conductive sheet, the conversion part is connected between the main body and the conductive sheet, and the thickness of the conductive sheet is twice the thickness of the sheet.

[0014] In an embodiment, the conductive sheet is formed by partly stacking two like sheets or by partly stacking the same two of the sheets. |0015] In an embodiment, the first engagement part includes two of the conversion parts partly connected to the two of the sheets respectively. |0016] In an embodiment, the charging connection terminal is an AC charging terminal.

[0017] The present application further provides a charging socket, which includes a socket housing provided with a terminal cavity and the above-mentioned charging connection terminal applied or positioned in the charging socket and arranged in the socket housing.

[0018] In an embodiment, a clamping resilient sheet or resilient barb is provided on a circumferential outer wall of the charging connection terminal, and an inner wall of the socket housing is provided with a clamping portion adapted to the clamping resilient sheet or resilient barb.

[0019] Beneficial effects of the charging connection terminal used in the charging socket and provided by the present invention lie in that: compared with the prior art, the charging connection terminal in the present application includes the main body, the first engagement part and the second engagement part; the first engagement part is configured to pluggably connect with the first mating terminal, the first mating terminal clamps the first engagement part for fixation, the second engagement part is configured to engage with the second mating terminal of the external charging device, the charging connection terminal is electrically connected with the external charging device via the second engagement part, and the first engagement part transmits electric energy to the first mating terminal engaged thereto and thus the electric energy is transmitted to the storage battery; when the charging connection terminal needs to be repaired due to damage, the first engagement part of the charging connection terminal is detached from the first mating terminal to complete disassembly; and a first engagement part of an undamaged charging connection terminal is engaged and fixed in the first mating terminal, the process of which is simple in term of maintenance and reduces the maintenance cost.

[0020] Beneficial effects of the charging socket provided by the present invention lie in that: compared with the prior art, the charging socket in the present application includes the socket housing provided with the terminal cavity and the above-mentioned charging connection terminal applied in the charging socket and arranged in the socket housing; the charging connection terminal includes the main body, the first engagement part and the second engagement part; the first engagement part is configured to pluggably connect with the first mating terminal, the first mating terminal clamps the first engagement part for fixation, the second engagement part is configured to engage with the second mating terminal of the external charging device, the charging socket is electrically connected with the external charging device via the second engagement part arranged in the socket housing, and the first engagement part transmits electric energy to the first mating terminal engaged thereto and thus the electric energy is transmitted to the storage battery connected with the charging socket; when the charging connection terminal of the charging socket needs to be repaired due to damage, the first engagement part of the charging connection terminal is detached from the first mating terminal and is removed from the socket housing to complete disassembly; and an undamaged charging connection terminal is mounted to the socket housing, and a first engagement part is engaged and fixed in the first mating terminal, the process of which is simple in term of maintenance and reduces the maintenance cost. |0021] In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings to be used in the explanation of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings may also be obtained by those of ordinary skill in the art based on these drawings without creative labor.

[0022] FIG. 1 is a first stereoscopic structure diagram of the charging connection terminal provided by an embodiment of the present invention. [0023| FIG. 2 is a second stereoscopic structure diagram of the charging connection terminal provided by an embodiment of the present invention.

[0024] FIG. 3 is a front structure diagram of the charging connection terminal provided by an embodiment of the present invention.

[0025] FIG. 4 is a cross-sectional structure diagram of the charging connection terminal provided by an embodiment of the present invention.

[0026] FIG. 5 is a stereoscopic structure diagram of the charging connection terminal provided by another embodiment of the present invention.

[0027] Among them, reference signs in the drawings are as follows:

[0028] 1 - charging connection terminal; 11 - clamping resilient sheet; 2 - main body; 3 - first engagement part; 31 - conversion part; 32 - conductive sheet; 33 - guide structure; 4 -second engagement part; 41 - upper end; 42 - bottom end; 421 - tubular cavity; 5 - sealing member; 51 - sealing ring; 52 - sealing plug. DETAIL

[0029] In order to make the technical problems to be solved, the technical solutions and the beneficial effects of the present invention more comprehensible, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present invention. (0030] It should be noted that, when an element is referred to as being ’'fixed to" or "arranged on" another element, this element may be directly on the other element or indirectly on the other element; when an element is referred to as being "connected to" another element, this element may be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that, orientations or positional relationships indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer", etc, are based on orientations or positional relationships as shown in the drawings, which are only aimed to facilitate description of the present invention and simplification of the description, rather than to indicate or imply that an indicated device or element must have a specific orientation or be constructed and operated in a specific orientation. Therefore, the orientations or positional relationships cannot be understood as a limitation of the present invention. [0032( Additionally, the terms "first" and "second" are only used for a descriptive purpose, and cannot be understood as an indication or implication of relative importance or an implicit indication of the number of an indicated technical feature. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the phrase "a plurality of' means two or more than two, unless otherwise explicitly and specifically defined.

[0033] Please refer to FIGS. 1 to 3 together. A charging connection terminal 1 for use in a charging socket and provided by this embodiment includes a main body 2, a first engagement part 3 and a second engagement part 4. The first engagement part 3 is configured to pluggably connect with a first mating terminal, the first mating terminal clamps the first engagement part 3 for fixation. The second engagement part 4 is configured to engage with a second mating terminal of an external charging device. Through electrically connecting the second engagement part 4 with the external charging device, the first engagement part 3 transmits electric energy to the first mating terminal engaged thereto and thus the electric energy is transmitted to a storage battery. When the charging connection terminal 1 needs to be repaired due to damage, the first engagement part 3 of the charging connection terminal 1 is detached from the first mating terminal to complete disassembly, and a first engagement part 3 of an undamaged charging connection terminal 1 is engaged and fixed in the first mating terminal. This process is simple in term of maintenance and reduces maintenance cost. Optionally, the charging connection terminal 1 is an AC charging terminal.

[0034] Please refer to FIGS, 2 to 4 together, as a specific implementation of the charging connection terminal 1 provided in this embodiment. One end of the first engagement part 3 of the charging connection terminal 1 is fixedly connected to the second engagement part 4, and the other end of the first engagement part 3 is a flat conductive sheet 32 configured to pluggably connect with the first mating terminal. Through arranging one end of the first engagement part 3 as a flat conductive sheet 32, it is more convenient for the first engagement part 3 and the first mating terminal to be pluggably connected. When the charging connection terminal 1 is damaged and needs to be repaired, the conductive sheet 32 of the first engagement part 3 may be detached from the first mating terminal to complete the disassembly, and a conductive sheet 32 of an undamaged first engagement part 3 is engaged and fixed to the first mating terminal, which is easy to maintain and reduces the maintenance cost. Optionally, outer surfaces on both sides of the conductive sheet 32 are all electrical contact surfaces, so that the first mating terminal can realize current transmission while being plyggably connected with the first engagement part 3, the second engagement part 4 is electrically connected to the external charging device, and the first engagement part 3 transmits the electric energy to the first mating terminal pluggably connected thereto and to the storage battery. Optionally, the outer surfaces of the conductive sheet 32 are provided with an anti-skid or anti-slip structure, which is beneficial to increase the friction force between the conductive sheet 32 and the first mating terminal, and facilitates the connection stability between the first mating terminal and the charging connection terminal 1. Optionally, the first engagement part 3 is provided with a guide structure 33 disposed at a peripheral side wall of the conductive sheet 32 to limit a movement direction of the first engagement part 3, so as to facilitate the pluggable connection between the charging connection terminal 1 and the first mating terminal. The specific structure of the guide structure 33 is not limited herein. Optionally, the guide structure 33 is a guide chamfer provided on the circumferential side wall of the conductive sheet 32. (0035| Please refer to FIGS. 2 to 4 together. In this embodiment, the second engagement part 4 of the charging connection terminal 1 is tubular, and the second engagement part 4 is provided with an upper end 41 fixedly connected to the first engagement part 3 and a bottom end 42 opposite to the upper end 41. A circumferential inner wall of the bottom end 42 of the second engagement part 4 is enclosed to form a tubular cavity 421 configured to axially and plugably connect with the second mating terminal, and the second mating terminal may be inserted into the tubular cavity 421 along the axial direction of the second engagement part 4 via the bottom end 42 of the second engagement part 4. Optionally, the circumferential inner wall of the second engagement part 4 is evenly provided with a plurality of elastic metal pieces configured to abut and clamp the second mating terminal, such that the pluggable connection between the second mating terminal and the second engagement part 4 is more stable, which is beneficial to improve the reliability of the charging connection terminal 1. Optionally, the width of the first engagement part 3 is smaller than a tubular outer diameter of the second engagement part 4, which is convenient for assembly and disassembly. [G036J Please further refer to FIGS. 3 to 4. In this embodiment, a sealing member 5 is provided on the charging connection terminal I, and the specific structure and material of the sealing member 5 are not limited herein. Optionally, the sealing member 5 has a sealing ring 51 surrounding and on an outer surface of the second engagement part 4 and a sealing plug 52 arranged inside the tubular cavity 421, and the sealing plug 52 divides the tubular cavity 421 into tubular cavities 421 at two ends which are axially sealed to or from each other. Optionally, the sealing member 5 and the main body 2 are overmolded as an integral part.

[0037] Please refer to FIG. 5, as another specific implementation of the charging connection terminal 1 provided by the present invention. The charging connection terminal 1 is an integral piece formed by a sheet having uniform thickness. Optionally, the first engagement part 3 includes a conversion part 31 and a conductive sheet 32, the conversion part 31 is connected between the main body 2 and the conductive sheet 32, the thickness of the conductive sheet 32 is twice the thickness of the sheet, the first engagement part 3 is formed by extruding the sheet, and the thickness of the conductive sheet 32 is twice the thickness of the sheet, which is beneficial to improve the reliability of the conductive sheet 32 and facilitates processing and production. Optionally, the conductive sheet 32 is formed by partly stacking the same two of the sheets, which is convenient for mass production. Optionally, the first engagement part 3 includes tw'O of the conversion parts 31, which are partly connected to the two of the sheets respectively to ensure the connection stability between the conductive sheet 32 and the main body 2 as well as the reliability of the product.

[0038] The present application further provides a charging socket, which includes a socket housing provided with a terminal cavity and the above-mentioned charging connection terminal 1 applied in the charging socket and arranged in the socket housing. The charging connection terminal 1 includes the main body 2, the first engagement part 3 and the second engagement part 4. The first engagement part 3 is configured to pluggably connect with the first mating terminal, the first mating terminal clamps the first engagement part 3 for fixation, the second engagement part 4 is configured to engage with the second mating terminal of the external charging device. The charging socket is electrically connected with the external charging device via the second engagement part 4 arranged in the socket housing, and the first engagement part 3 transmits electric energy to the first mating terminal engaged thereto and thus the electric energy is transmitted to the storage battery connected to the charging socket. When the charging connection terminal 1 of the charging socket needs to be repaired due to damage, the first engagement part 3 of the charging connection terminal 1 is detached from the first mating terminal and is removed from the socket housing to complete disassembly, and an undamaged charging connection terminal 1 is mounted in the socket housing, and the first engagement part 3 is engaged and fixed in the first mating terminal, the process of which is simple in term of maintenance and reduces the maintenance cost. Optionally, a clamping resilient sheet or resilient barb 11 is provided on a circumferential outer wall of the charging connection terminal 1, and an inner wall of the socket housing is provided with a clamping portion adapted to the clamping resilient sheet 11, and the charging connection terminal 1 is firmly mounted by way of clamping in the socket housing, so that the resistance encountered during the assembly process is smaller. The clamping resilient sheet 11 shrinks or resiles inwardly after or by being squeezed so as to reduce the resistance, which is convenient for an operator to assemble. The number of the clamping resilient sheets 11 is not limited herein. Optionally, there are a plurality of clamping resilient sheets 11, and the clamping resilient sheets 11 are arranged on the circumferential outer wall of the charging connection terminal 1 at intervals, which is beneficial to improve the connection stability between the charging connection terminal 1 and the socket housing.

[0039] Only preferred embodiments of this embodiment are described in the above description, which are not intended to limit the invention. Any modification, equivalent replacement and improvement made within the spirit and principle of this invention shall be included within the scope of protection afforded by the application.

Claims

1. A charging connection terminal for use in a charging socket, wherein the charging connection terminal comprises a main body, a first engagement part and a second engagement part;the first engagement part is for pluggably connecting with a first mating terminal;the second engagement part is for engaging with a second mating terminal of an external charging device;the second engagement part is tubular and forms a tubular cavity;the charging connection terminal has a sealing member comprising a sealing ring surrounding and on an outer surface of the second engagement part and a sealing plug arranged inside the tubular cavity;one end of the first engagement part is fixedly connected to the second engagement part, and another end of the first engagement part is a flat conductive sheet configured to pluggably connect with the first mating terminal.

2. The charging connection terminal of claim 1, characterized in that, the first engagement part is provided with a guide structure disposed at a peripheral side wall of the conductive sheet.

3. The charging connection terminal of claim 1 or 2, characterized in that, outer surfaces on both sides of the conductive sheet are electrical contact surfaces.

4. The charging connection terminal of claim 1, 2 or 3, characterized in that, the outer surfaces of the conductive sheet are provided with an anti-skid or anti-slip structure.

5. The charging connection terminal of any preceding claim, characterized in that, the second engagement part is provided with an upper end fixedly connected to the first engagement part and a bottom end opposite to the upper end, and a circumferential inner wall of the bottom end of the second engagement part is enclosed to form the tubular cavity for axially and plugably connecting with the second mating terminal.

6. The charging connection terminal of any preceding claim, characterized in that, the width of the first engagement part is smaller than a tubular outer diameter of the second engagement part.

7. The charging connection terminal of any preceding claim, characterized in that,the sealing member and the main body are overmolded as one part.

8. The charging connection terminal of any preceding claim, characterized in that, the charging connection terminal is an integral piece formed by a sheet having uniform thickness.

9. The charging connection terminal of any preceding claim, characterized in that, the first engagement part comprises a conversion part and the conductive sheet, the conversion part is connected between the main body and the conductive sheet, and the thickness of the conductive sheet is twice the thickness of the sheet.

10. The charging connection terminal of claim 9, characterized in that, the conductive sheet is formed by partly stacking two like sheets.

11. The charging connection terminal of claim 10, characterized in that, the first engagement part comprises two said conversion parts respectively partly connected to two said sheets.

12. The charging connection terminal of any of claims 1 to 11, characterized in that, the charging connection terminal is an AC charging terminal.

13. The charging connection terminal of any preceding claim, wherein the sealing plug divides the tubular cavity into tubular cavities which are axially sealed from each other.

14. A charging socket, characterized in that, the charging socket comprises a socket housing provided with a terminal cavity and the charging connection terminal according to any of claims 1 to 13 positioned in the charging socket and arranged in the socket housing.

15. The charging socket of claim 14, characterized in that, a resilient barb is provided on a circumferential outer wall of the charging connection terminal, and an inner wall of the socket housing is provided with a clamping portion adapted to the resilient barb.

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