Novel connector for charging electric bicycle

Abstract

The novel electric bicycle charging connector comprises a male head and a female seat, a signal terminal of the male head is provided with a first elastic contact portion, a power supply terminal of the male head is in a plate shape, a signal terminal of the female seat is in a plate shape, and the power supply terminal of the female seat is provided with a second elastic contact portion. According to the utility model, the power supply terminals and the signal terminals of the male head and the female seat are arranged in a crossed manner, i.e., the original plate-shaped male head signal terminals are arranged on the female seat, and the original female seat signal terminals matched with the original plate-shaped male head signal terminals are arranged on the male head, so that the male head and the female seat both comprise plate-shaped and hole-shaped terminals; the possibility of being touched by fingers by mistake is avoided to a certain extent; in addition, through the arrangement of the waterproof assembly and the lock catch assembly, the safety in use is further improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic connectors, in particular to a new type of connector for charging electric bicycles. Background Art

[0002] At present, electric bicycles have become the main means of transportation for people's daily travel; with the development of battery and fast charging technologies, new requirements have been put forward for the charging connectors of electric bicycles, especially the safety of the connectors.

[0003] For existing power connectors, the contact conductors of the male and female connectors include power terminals for transmitting current and signal terminals for transmitting signals; usually, the contact conductors of the male connector are needle-shaped or plate-shaped, with a protruding shape; while the contact conductors of the female connector are hole-shaped, with a concave shape; in actual use, it is easy for users to insert their fingers and contact the contact conductors of the male connector, resulting in certain safety hazards.

[0004] In addition, in order to meet the requirements of fast charging, it is also necessary to solve the problems of large current of the connector and the connection reliability between the male and female connectors during the charging process. Summary of the Utility Model

[0005] In order to solve the above problems, the utility model proposes a new type of connector for charging electric bicycles, which solves the safety problems caused by the easy accidental contact of existing power connectors.

[0006] The main content of the utility model includes:

[0007] A new type of connector for charging electric bicycles, comprising a mating male and female connector; the male connector includes a male plastic body and a plurality of male signal terminals and a plurality of male power terminals arranged in the male plastic body;

[0008] The female connector includes a female plastic outer shell and a female plastic body arranged in the female plastic outer shell, and a plurality of female signal terminals and a plurality of female power terminals in the female plastic body;

[0009] Wherein, each male signal terminal has a first elastic contact part composed of at least two signal elastic arms; the male power terminal is plate-shaped; the female signal terminal is plate-shaped; the female power terminal has a second elastic contact part composed of at least two power elastic arms; when the male and female connectors are mated, the female signal terminal is inserted into the first elastic contact part; the male power terminal is inserted into the second elastic contact part.

[0010] Preferably, the male plastic body includes a male plastic main body with openings at both ends and a male plastic mounting seat disposed within the male plastic main body; a male plastic wall protrudes from the middle of the male plastic mounting seat; the first elastic contact portion of the male signal terminal is disposed within the male plastic wall.

[0011] The female plastic body includes a female plastic main body, and a middle receiving groove and an edge receiving groove are formed on the front end face of the female plastic main body; a plurality of the female signal terminals extend and are disposed within the middle receiving groove; the second elastic contact portion of the female power terminal is disposed within the edge receiving groove.

[0012] Preferably, the male plastic wall is in a dumbbell shape, and a plurality of first receiving groove bodies penetrating through the male plastic mounting seat are formed on the end face of the male plastic wall; the male signal terminals are disposed within the first receiving groove bodies.

[0013] The cross-section of the middle receiving groove is in a dumbbell shape, and when the male and the female are mated with each other, the male plastic wall is disposed within the middle receiving groove.

[0014] Preferably, there are two male power terminals, which are respectively disposed on both sides of the male plastic wall; there are two groups of female power terminals, which are respectively disposed within the two edge receiving grooves, and the two edge receiving grooves are respectively formed at both ends of the middle receiving groove.

[0015] Preferably, a male insulating sleeve is further sleeved on the end of the male power terminal.

[0016] Preferably, a single male signal terminal includes two sub-male terminals symmetrically disposed along an axis, and a single sub-male terminal includes a sub-terminal main body and a signal spring arm connected to one side of the sub-terminal main body; the width direction of the signal spring arm is perpendicular to the surface of the sub-terminal main body, and its length direction is parallel to the length direction of the sub-terminal main body.

[0017] Preferably, the female power terminal includes a first power terminal and a second power terminal, and the first power terminal and the second power terminal include a power terminal main body in a plate shape, a plurality of power spring arms formed on the power terminal main body, and corresponding power mounting plate bodies; the power mounting plates of the two first power terminals and the second power terminal constitute a cable connection portion.

[0018] Preferably, the male further includes a male waterproof assembly, and the female further includes a female waterproof assembly; wherein, the male waterproof assembly includes a male plastic cover disposed at the rear end of the male plastic body and male potting glue; the female waterproof assembly includes a female waterproof ring sleeved outside the female plastic body, a female plastic cover disposed at the rear end of the female plastic housing, and female potting glue.

[0019] Preferably, the male connector further includes a male locking component, and the female connector further includes a female locking component; a locking installation groove is formed on the upper end surface of the male plastic body, and a locking bridge body is arranged above the locking installation groove;

[0020] The male locking component includes a male alloy piece rotatably connected to one end of the locking installation groove, and a locking convex block protrudes from the male alloy piece;

[0021] The female locking component includes a female stainless steel piece installed on the inner surface of the female plastic housing; a locking window and a locking elastic piece are formed on the female stainless steel piece; the locking elastic piece abuts against the step of the female plastic housing;

[0022] When the male connector is mated with the female connector, the locking convex block is disposed within the locking window.

[0023] Preferably, the male locking component further includes an anti-retreat elastic piece disposed in the locking installation groove and below the male alloy piece; a abutting elastic piece is arranged on the anti-retreat elastic piece to abut within the locking installation groove.

[0024] The beneficial effects of the present utility model are as follows:

[0025] A novel connector for charging an electric bicycle proposed by the present utility model has the power terminals and signal terminals of the male connector and the female connector arranged crosswise, that is, the original plate-shaped male signal terminal is disposed on the female connector, and the original female signal terminal mated with it is disposed on the male connector, so that both the male connector and the female connector include plate-shaped and "hole-shaped" terminals, which to a certain extent avoids the possibility of being accidentally touched by fingers; in addition, by providing a waterproof component and a locking component, the safety during use is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 is a sectional view of the overall structure of the present utility model;

[0028] Figure 3 is a schematic diagram of the overall structure of the male connector;

[0029] Figure 4 is an exploded view of the male connector;

[0030] Figure 5 is a rear view of the male connector;

[0031] Figure 6 is Figure 5 a sectional view taken along A-A in

[0032] Figure 7 Schematic structural diagram of a male signal terminal;

[0033] Figure 8 Schematic overall structure diagram of a female socket;

[0034] Figure 9 Schematic disassembled diagram of a female socket;

[0035] Figure 10 Schematic structural diagram of the mating of the male and female socket locking components;

[0036] Reference numerals:

[0037] 1 - male head; 10 - male head plastic body; 100 - male head plastic main body; 101 - male head plastic mounting seat; 102 - male head plastic wall; 1020 - first receiving groove; 1021 - second receiving groove; 11 - male head signal terminal; 11a - sub - male head terminal;

[0038] 110 - sub - terminal main body; 111 - signal spring arm; 1110 - first elastic contact part; 12 - male head power terminal; 13 - male head waterproof component; 130 - male head plastic cover; 131 - male head potting glue; 14 - male head locking component; 140 - locking mounting groove;

[0039] 141 - locking bridge; 142 - male head alloy part; 143 - locking bump; 144 - anti - withdrawal spring piece; 1440 - abutting spring piece; 15 - male head insulating sleeve;

[0040] 2 - female socket; 20 - female socket plastic body; 200 - female socket plastic main body; 201 - middle receiving groove; 202 - edge receiving groove; 203 - waterproof ring mounting groove; 21 - female socket signal terminal; 22 - female socket power terminal; 22a - first power terminal; 22b - second power terminal; 220 - power terminal main body; 221 - power spring arm; 222 - power mounting plate body; 2220 - cable connection part;

[0041] 23 - female socket waterproof component; 230 - female socket plastic cover; 231 - female socket potting glue; 232 - female socket waterproof ring; 24 - female socket locking component; 240 - female socket stainless steel part; 241 - locking window; 242 - locking spring piece; 25 - female socket plastic housing. Detailed implementation manners

[0042] The following specifically describes the technical solutions protected by the present utility model in conjunction with the accompanying drawings.

[0043] The present utility model provides a new type of connector for electric bicycle charging, which can not only transmit large currents, is suitable for fast charging, but also has higher safety.

[0044] Specifically, please refer toFigures 1 to 10 , the connector of the present utility model includes a mating male head 1 and a female seat 2; wherein, the male head 1 includes a male head plastic body 10 and a plurality of male head signal terminals 11 and a plurality of male head power terminals 12 disposed within the male head plastic body 10; and the female seat 2 includes a female seat plastic outer shell 25 and a female seat plastic body 20 disposed within the female seat plastic outer shell 25, and a plurality of female seat signal terminals 21 and a plurality of female seat power terminals 22 within the female seat plastic body 20.

[0045] Existing male head signal terminals and male head power terminals both adopt a plate-like structure. Correspondingly, female end signal terminals and female end power terminals adopt a structure with a receiving portion, such that when the male head and the female seat are mated, the signal terminals and power terminals of the male head can be inserted into the corresponding receiving portions of the female seat to achieve electrical contact; the signal terminals and power terminals of the male head protrude from their mounting seats, and it is very easy for a user to insert their hand and come into contact with these terminals, presenting a certain safety hazard.

[0046] In the present utility model, a cross design is carried out on the structures of the two types of terminals of the male head and the female seat. Through such a design, combined with the cooperation with the corresponding plastic bodies, it is made that the user's fingers cannot be easily inserted, thereby reducing the risk of accidental touch. The connector of the present utility model will be described in detail below with reference to the accompanying drawings.

[0047] Please combine Figures 3 to 7 ; the male head plastic body 10 includes a male head plastic main body 100 with openings at both ends and a male head plastic mounting seat 101 disposed within the male head plastic main body 100; a first receiving groove body 1020 for assembling male head signal terminals and a second receiving groove body 1021 for assembling male head power terminals are provided on the male head plastic mounting seat 101; in the present utility model, a single male head power terminal 12 still adopts a plate-like terminal structure, and its mounting portion is directly fixed within the second receiving groove body 1021, while the contact portion extends within the front end opening of the male head plastic body 10; and a single male head signal terminal 11 has a first elastic contact portion 1110 for receiving the inserted female seat signal terminal 21; that is, the male head signal terminal has a first elastic contact portion 1110 and is received within the first receiving groove body 1020. To further achieve the function of preventing accidental touch, a plurality of male head plastic walls 102 extend from the male head plastic mounting seat 101 towards the side mated with the female seat; the first receiving groove body 1020 penetrates from the end face of the male head plastic wall 102 to the other side of the male head plastic mounting seat 101, and each first receiving groove body 102 houses a male head signal terminal 11.

[0048] Since the distance between the male plastic wall 102 and the side wall of the front end opening of the male plastic body 10 is small. In this embodiment, the male plastic wall 102 is convexly provided in the middle, and the two groups of male power terminals 12 are respectively arranged at both ends. Due to the function of the male plastic wall 102, the user's finger is not easily inserted into the gap, ensuring the safety of use. Further, in Figure 6 As shown, an insulating sleeve 15 is also sleeved on the end of the male power terminal 12, improving the safety of use.

[0049] Correspondingly, as Figure 8 shown, the female socket plastic body 20 includes a female socket plastic main body 200. A middle receiving groove 201 and two edge receiving grooves 202 located on both sides of the middle receiving groove 201 are formed on the front end face of the female socket plastic main body 200; a plurality of female signal terminals 21 are sequentially arranged in the middle receiving groove 201, that is, its mounting portion is fixedly arranged in the female socket plastic main body, and its contact portion extends and is arranged in the middle receiving groove 201; meanwhile, the female power terminal 22 is arranged in the edge receiving groove 202 and has a second elastic contact portion capable of receiving the male power terminal 12; when the male and female sockets are mated, the female socket plastic body 20 is arranged in the opening of the male plastic body 10, and the male plastic wall 102 is arranged in the middle receiving groove 201. The strip-shaped female signal terminal 21 is inserted into the first receiving groove body 102 and is in electrical contact with the first elastic contact portion 1110 of the male signal terminal 11; at the same time, the plate-shaped male power terminal 12 is inserted into the edge receiving groove 202 and is in electrical contact with the female power terminal 22 with a plurality of elastic arms, thereby realizing the stable transmission of large current and meeting the fast charging requirement.

[0050] Further, the male plastic wall 102 is in a dumbbell shape. Correspondingly, the cross-section of the middle receiving groove 201 is also in a dumbbell shape. A protrusion is convexly provided in the middle of the two opposite inner walls of the middle receiving groove 201, blocking the entry of fingers and further improving the safety of use.

[0051] To further improve the safety performance of this connector, please refer to Figure 2 、 Figure 4 、 Figure 6 、 Figure 9 and Figure 10 , the male part 1 further includes a male waterproof component 13, and the female socket further includes a female socket waterproof component 23, which can not only waterproof and dustproof the mating surface, but also prevent water vapor or dust from entering from the rear end of the male or female socket.

[0052] Specifically, the male waterproof component 13 includes a male plastic cover 130 disposed at the rear end of the male plastic body 10 and male potting glue 131; the female socket waterproof component 23 includes a female socket waterproof ring 232 sleeved outside the female socket plastic body 20, a female socket plastic cover 230 disposed at the rear end of the female socket plastic housing 25, and female potting glue 231.

[0053] In other embodiments, the present invention can also ensure the reliability of the mating between the male and female connectors. For example, Figure 2 and Figure 10 as shown, the male connector further includes a male locking component 14, and the female socket further includes a female socket locking component 24; a locking installation groove 140 is provided on the upper end surface of the male plastic body 10, and a locking bridge 141 is provided above the locking installation groove 140 for restricting the male locking component 14; specifically, the male locking component 14 includes a male alloy member 142 rotatably connected to one end of the locking installation groove 140 and an anti-withdrawal elastic sheet 144 disposed in the locking installation groove 140 and below the male alloy member 141. Under the combined action of the locking bridge 141 and the anti-withdrawal elastic sheet 144, the male alloy member 141 can be stably arranged; a locking protrusion 143 protrudes from the male alloy member 142; a step is provided in the locking installation groove 140, and an abutting elastic sheet 1440 is provided on the anti-withdrawal elastic sheet 144 to abut in the locking installation groove 140.

[0054] Correspondingly, the female socket locking component 24 includes a female socket stainless steel member 240, and the female socket stainless steel member 240 is installed on the inner surface of the female socket plastic housing 25; a locking window 241 and a locking elastic sheet 242 are provided on the female socket stainless steel member 240; the locking elastic sheet 242 abuts against the step of the female socket plastic housing 25; when the male connector 1 is mated with the female socket 2, the locking protrusion 143 is disposed in the locking window 241, as Figure 10 shown.

[0055] The locking components of existing connectors usually use plastic locking components and rely on their own elastic force to achieve plugging and unplugging; while in this application, the material of the male locking component is changed to a metal part, that is, the male alloy member 142 is used to achieve the locking with the female socket locking component, which improves the strength of the locking. At the same time, the anti-withdrawal elastic sheet 144 made of stainless steel material with high durability provides elastic force for the male alloy member 142, thereby ensuring the plugging and unplugging function of the locking.

[0056] In order to achieve the transmission of large current and reliable electrical contact, each single male signal terminal 11 of the present invention includes two sub-male terminals 11a arranged axially symmetrically. Please refer to Figure 2 、 Figure 6 and Figure 7, each of the male sub - terminal connectors 11a includes a sub - terminal body 110 and a signal spring arm 111 connected to one side of the sub - terminal body 110; the width direction of the signal spring arm 111 is perpendicular to the surface of the sub - terminal body 110, and its length direction is parallel to the length direction of the sub - terminal body 110.

[0057] Please refer to Figure 9 , the female socket power terminal 22 includes a first power terminal 22a and a second power terminal 22b. The first power terminal 22a and the second power terminal 22b include a plate - shaped power terminal body 220, a plurality of power spring arms 221 formed on the power terminal body 220, and corresponding power mounting plate bodies 222; the power mounting plates of the two first power terminals 22a and the second power terminal 22b constitute a cable connection portion 2220. As Figure 9 shown, the power mounting plate of the second power terminal 22b is bent to form at the rear end of the power terminal body. Thus, when paired with the first power terminal 22a, the female socket power terminal 22 has a cable connection portion for connecting a cable at the rear end. Since the female socket power terminal 22 has multiple contact spring arms, it can form multiple - point contact with the male power terminal 12, which can achieve high - current and ensure the stability of current transmission.

[0058] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A connector for charging a new type of electric bicycle, characterized in that Including a mating male head and female socket; the male head includes a male head plastic body and a plurality of male head signal terminals and a plurality of male head power terminals disposed within the male head plastic body; The female socket includes a female socket plastic outer shell and a female socket plastic body disposed within the female socket plastic outer shell, a plurality of female socket signal terminals and a plurality of female socket power terminals within the female socket plastic body; Wherein, a single one of the male head signal terminals has a first elastic contact portion formed by at least two signal spring arms; the male head power terminal is in a plate shape; the female socket signal terminal is in a plate shape; the female socket power terminal has a second elastic contact portion formed by at least two power spring arms; when the male head and the female socket are mated, the female socket signal terminal is inserted into the first elastic contact portion; the male head power terminal is inserted into the second elastic contact portion.

2. The novel electric bicycle charging connector according to claim 1, characterized in that, The male head plastic body includes a male head plastic main body with openings at both ends and a male head plastic mounting seat disposed within the male head plastic main body; a male head plastic wall protrudes in the middle of the male head plastic mounting seat; the first elastic contact portion of the male head signal terminal is disposed within the male head plastic wall; The female socket plastic body includes a female socket plastic main body, a middle receiving groove and an edge receiving groove are formed on the front end surface of the female socket plastic main body, and a plurality of the female socket signal terminals extend and are disposed within the middle receiving groove; the second elastic contact portion of the female socket power terminal is disposed within the edge receiving groove.

3. The novel electric bicycle charging connector according to claim 2, characterized in that, The male head plastic wall is in a dumbbell shape, and a plurality of first receiving groove bodies penetrating the male head plastic mounting seat are formed on the end surface of the male head plastic wall, and the male head signal terminals are disposed within the first receiving groove bodies; The cross-section of the middle receiving groove is in a dumbbell shape, and when the male head and the female socket are mutually mated, the male head plastic wall is disposed within the middle receiving groove.

4. The novel electric bicycle charging connector according to claim 3, characterized in that, There are two male head power terminals, which are respectively disposed on both sides of the male head plastic wall; there are two groups of female socket power terminals, which are respectively disposed within two edge receiving grooves, and the two edge receiving grooves are respectively formed at both ends of the middle receiving groove.

5. A connector for charging a new type of electric bicycle according to claim 3, characterized in that, An insulating sleeve is further sleeved on the end of the male head power terminal.

6. A connector for charging a new type of electric bicycle according to any one of claims 1 to 5, characterized in that, A single one of the male head signal terminals includes two sub-male head terminals symmetrically disposed about an axis, and a single sub-male head terminal includes a sub-terminal main body and a signal spring arm connected to one side of the sub-terminal main body; the width direction of the signal spring arm is perpendicular to the surface of the sub-terminal main body, and its length direction is parallel to the length direction of the sub-terminal main body.

7. A connector for charging a new type of electric bicycle according to any one of claims 1 to 5, characterized in that, The female socket power terminal includes a first power terminal and a second power terminal, and the first power terminal and the second power terminal include a power terminal main body in a plate shape, a plurality of power spring arms formed on the power terminal main body, and corresponding power mounting plate bodies; the power mounting plates of the two first power terminals and the second power terminal form a cable connection portion.

8. A connector for charging a new type of electric bicycle according to claim 1, characterized in that, The male head further includes a male head waterproof component, and the female socket further includes a female socket waterproof component; wherein, the male head waterproof component includes a male head plastic cover disposed at the rear end of the male head plastic body and male head potting glue; the female socket waterproof component includes a female socket waterproof ring sleeved on the outside of the female socket plastic body, a female socket plastic cover disposed at the rear end of the female socket plastic outer shell and female socket potting glue.

9. A connector for charging a new type of electric bicycle according to claim 1, characterized in that, The male connector further includes a male connector locking component, and the female connector further includes a female connector locking component; a locking component installation groove is formed on the upper end surface of the male connector plastic body, and a locking component bridge body is arranged above the locking component installation groove; The male connector locking component includes a male connector alloy part rotatably connected to one end of the locking component installation groove, and a locking convex block protrudes from the male connector alloy part; The female connector locking component includes a female connector stainless steel part, and the female connector stainless steel part is installed on the inner surface of the female connector plastic housing; a locking window and a locking elastic sheet are formed on the female connector stainless steel part; the locking elastic sheet abuts against the step of the female connector plastic housing; When the male connector and the female connector are mated, the locking convex block is arranged in the locking window.

10. A connector for charging a new type of electric bicycle according to claim 9, characterized in that, The male connector locking component further includes an anti-retreat elastic sheet, and the anti-retreat elastic sheet is arranged in the locking component installation groove and is located below the male connector alloy part; a abutting elastic sheet is arranged on the anti-retreat elastic sheet to abut in the locking component installation groove.

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