Conductor male plug-in, lithium ion battery and electric equipment

Abstract

The utility model relates to the field of application connection of lithium ion batteries, in particular to a conductor male plug-in, a lithium ion battery and electric equipment. The front end section of the conductor male plug-in is provided with a plurality of axial open grooves, the front end section of the conductor male plug-in is divided into a plurality of axially separated lobes by the open grooves, and the outer side of at least one lobe is provided with a protruding part so as to be limited in a concave position in an inserted conductor female plug-in. And the rear end of the conductor male plug-in is provided with a welding position for welding a lead wire for wiring.

Description

Technical Field

[0001] The utility model relates to the application connection field of lithium ion batteries, in particular to a conductor male connector, a lithium ion battery and an electric device. Background Art

[0002] As lithium-ion battery equipment is increasingly used and more and more equipment uses lithium-ion batteries, people's requirements for the connection devices between lithium-ion batteries and equipment, and the connection devices between batteries and chargers are gradually increasing.

[0003] During the process of developing the present invention, the inventors of the present invention discovered that the connectors in the prior art have the defect of being easily loosened, which is not conducive to use. Summary of the Invention

[0004] One of the purposes of the embodiments of the present utility model is to provide a conductor male connector, a lithium-ion battery and an electric device, and the application of this technical solution is conducive to improving the reliability of electrical connection.

[0005] In a first aspect, an embodiment of the present invention provides a conductor male plug, wherein the front end section of the conductor male plug is provided with a plurality of axial slots, each of the slots divides the front end section of the conductor male plug into a plurality of axially separated petals, and a raised protrusion is provided on the outer side of at least one of the petals to limit the insertion into a recessed position in the inserted conductor female plug.

[0006] A welding position is provided at the rear end of the conductor male connector for welding wire connections.

[0007] Optionally, the front end section of the conductor male plug is in the shape of a tube with a hollow axis, and each of the petals is a tube wall.

[0008] Optionally, the rear end of the conductor male plug is a closed end, and the welding is provided on the rear end surface of the closed end.

[0009] Optionally, the rear end of the conductor male plug is a rear seat with an outer diameter larger than that of the conductor male plug, the rear seat serves as the rear closed end of the conductor male plug, and the welding position is provided on the rear end surface of the rear seat.

[0010] Optionally, a raised edge is provided on the periphery of the welding position and is higher than the plane where the welding position is located, and the raised edge partially surrounds the welding position.

[0011] Optionally, a raised or recessed identification portion is further provided on the rear end surface of the raised edge.

[0012] Optionally, the conductor male connector is a copper component.

[0013] Optionally, the slots are evenly distributed along the conductor male plug.

[0014] In a third aspect, an embodiment of the present invention provides a lithium-ion battery, comprising:

[0015] Lithium-ion battery pack body,

[0016] At least one of the above-mentioned male conductor connectors has a power line welded to the welding position at the rear end of each male conductor connector, and the other end of each power line is electrically connected to the positive electrode or the negative electrode of the lithium-ion battery pack body.

[0017] In a third aspect, an embodiment of the present invention provides an electric device, comprising:

[0018] Electric equipment drive circuit,

[0019] At least one of the above-mentioned conductor male plugs has a power wire welded at the welding position of the rear end of each conductor female plug, and the other end of each power wire is electrically connected to the positive or negative pole of the electric device drive circuit.

[0020] As can be seen from the above, the conductor male plug of the present embodiment is provided with a slot on the front end section of the conductor male plug, and its front end section is in the shape of petals surrounding the axis. When inserting the conductor female plug at the opposite end, interference insertion can be adopted. During the insertion process, each petal is squeezed by the inner wall of the conductor female plug so that it is in close contact with the conductor female plug, and the inner wall of the conductor female plug is provided with a recess or groove whose size and position match the protrusion on the conductor male plug. When the conductor female plug is fully inserted, the protrusion is limited in each recess or groove, realizing the plug-in position limit, which is beneficial to improve the tightness of the plug-in, improve the reliability of the plug-in, and avoid loosening of the plug-in. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention.

[0022] Figure 1 、 2 They are respectively schematic diagrams of the three-dimensional structure of a conductor male plug provided in the first embodiment of the present utility model;

[0023] Figure 3 、 4 5 are schematic diagrams of the structure of a conductor male connector provided in the first embodiment of the present invention from the front, left and right views respectively;

[0024] Figure 6 A schematic diagram of the three-dimensional structure of a conductor female insert provided in the second embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the main structure of the conductor female insert provided in the second embodiment of the present utility model;

[0026] Figure 8 for Figure 7 AA cross-sectional structural diagram of the conductor female insert shown;

[0027] Figure 9 、 10 11 and 12 are schematic structural diagrams of the conductor female insert provided in the second embodiment of the present invention, respectively, from the rear, left, and right views;

[0028] Figure 12 、 13 They are Figure 11 BB and CC cross-sectional structural diagrams of the conductor female insert shown;

[0029] Figure 14 、 15 They are respectively schematic diagrams of the structure of the conductor female insert provided in the second embodiment of the present utility model from top view and bottom view;

[0030] Figure 16 A schematic diagram of the connection between a conductor male plug and a conductor female plug in a conductor connector kit provided in the third embodiment of the present invention;

[0031] Figures 17 to 23 These are schematic structural diagrams of the conductor connector kit provided by the third embodiment of the present invention in a fully plugged-in state, in three-dimensional, front, rear, left, right, top, and bottom views;

[0032] Figure 24 A schematic cross-sectional view of the structure of the conductor male plug provided in the third embodiment of the present invention when the protrusion is confined in the guide groove during the insertion of the conductor female plug;

[0033] Figure 25 Another cross-sectional structural diagram of the third embodiment of the present invention, showing a male conductor plug fully inserted into a female conductor plug and a raised portion confined within the positioning groove;

[0034] Figure 26 A schematic cross-sectional view of the structure of the conductor male plug provided in the third embodiment of the present invention when the protrusion is confined in the guide groove during the insertion of the conductor female plug;

[0035] Figure 27 This is another cross-sectional structural diagram of the third embodiment of the present invention when the male conductor plug is fully inserted into the female conductor plug and the protrusion is confined in the positioning groove.

[0036] 1: Male conductor connector; 11: First welding position; 12: Slot; 13: Petal; 14: Raised portion; 15: Back seat; 16: First raised edge; 17: First identification portion;

[0037] 2: Conductor female insert; 21: Second welding position; 22: Guide groove; 23: Positioning groove; 26: Second raised edge. DETAILED DESCRIPTION

[0038] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Here, the schematic embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0039] Example 1.

[0040] See also Figures 1 to 5 shown.

[0041] This embodiment provides a conductor male connector 1, which is supported by a conductor with good electrical conductivity, such as but not limited to copper.

[0042] The conductor male connector 1 serves as an external connection end of the conductive male connector, and is provided with a first welding position 11 at the rear end for welding wire connections.

[0043] The front end section of the conductor male plug 1 is used to insert the end of the conductor female plug 2 at the opposite end, and its front end section is a columnar shape. It can be a solid columnar shape or a hollow tube shape.

[0044] The front end of the male conductor connector 1 is provided with a plurality of slots 12. Each slot 12 is an open slot at the front end and extends axially from the front end for a certain length. These slots 12 separate the front end of the male conductor connector 1 into a plurality of axially separated petals 13. A slot 12 is located between any two adjacent petals 13, and the rear ends of these petals 13 are connected together. Preferably, the slots 12 are evenly distributed along the axis of the male conductor connector 1, separating each petal 13 into equal sizes.

[0045] At least one protrusion 14 is provided on the outer peripheral surface of at least one flap 13 of the conductor male connector 1 . The protrusion 14 protrudes from the outer surface of the flap 13 where it is located.

[0046] As can be seen from the above, the conductor male plug 1 of this embodiment is provided with a slot 12 on the front end section of the conductor male plug 1, and its front end section is in the shape of petals 13 surrounding the axis. When inserting the conductor female plug 2 at the opposite end, interference insertion can be adopted. During the insertion process, each petal 13 is squeezed by the inner wall of the conductor female plug 2 to make it in close contact with the conductor female plug 2, and the inner wall of the conductor female plug 2 is provided with a concave position or groove whose size and position match the protrusion 14 on the conductor male plug 1. When the conductor female plug 2 is fully inserted, the protrusion 14 is limited in each concave position or groove, realizing the plug-in position limit, which is beneficial to improve the tightness of the plug-in, improve the reliability of the plug-in, and avoid loosening of the plug-in.

[0047] Preferably, the front end section of the conductor male connector 1 is hollow, such as, but not limited to, a tube having a hollow portion concentric with the axis. The wall thickness of the conductor male connector is uniform throughout, and the thickness of each flap 13 is uniform. Preferably, each slot 12 extends axially, and each flap 13 has a sector-shaped cross-section.

[0048] Preferably, the rear end of the conductor male insert of this embodiment is closed, that is, the rear end of the conductor male plug 1 is a closed end, and the rear end surface of the closed end serves as the first welding position 11.

[0049] As an illustration of this embodiment, a rear seat 15 is integrally formed with the rear end of the conductor male connector 1. The rear seat 15 serves as the closed rear end of the conductor male connector 1. The outer diameter of the rear seat 15 is larger than that of the conductor male connector 1, and the first welding position 11 is located on the rear end surface of the rear seat 15. This allows the front end of the insulating seat 15 to engage with the rear end of the conductor male connector 1 when the rear end of the conductor male connector 1 is covered by the hand-held insulating seat, making it more stable and less likely to shift during insertion and removal.

[0050] As an illustration of this embodiment, it is preferred that a first raised edge 16 that is higher than the platform where the first welding position 11 is located is provided in half the circumference of the outer circumference of the first welding position 11 on the rear end face of the rear seat 15. The first raised edge 16 semi-surrounds the outer circumference of the first welding position 11, that is, part of the edge of the first welding position 11 is the edge of the rear end face of the rear seat 15. The design of the semi-enclosed first raised edge 16 is conducive to the positioning welding of the rear end wire and facilitates operation.

[0051] As an illustration of this embodiment, a marking portion 17 is further provided on the rear end surface of the first raised edge 16, such as but not limited to a rotation direction mark or other mark for user convenience. The marking portion 17 can be a raised portion 14 or a recessed portion designed in a predetermined shape.

[0052] The male conductor connector 1 of this embodiment can be used in lithium-ion batteries as a power connector. Conductive wires connect the male conductor connector 1 of this embodiment to the electrodes of the lithium-ion battery. One end of the wire is connected to the lithium-ion battery electrode, and the other end is welded to a first welding position 11 at the rear end of the male conductor connector 1. When an external electric device is connected to the lithium-ion battery as a power source, the female conductor plug 2 is used as the power plug of the electric device. The male conductor connector 1 on the lithium-ion battery power source is inserted into the female conductor plug 2 of the electric device, and the protrusion 14 therein is restrained by the recessed portion of the female conductor plug 2.

[0053] Similarly, the conductor male connector 1 of this embodiment can be applied to the power connector of electric equipment and connected to the conductor female plug 2 connected to the electrode of the power supply.

[0054] As an illustration of this embodiment, a plug-in / plug-out mechanism may be provided at the rear end of the conductor male connector 1 to facilitate user plugging and unplugging operations.

[0055] Example 2.

[0056] See also Figures 6 to 15 shown.

[0057] This embodiment provides a conductor female insert 2, the front end of which is tubular and is referred to as the conductor female insert 2. A welding position (referred to as the second welding position 21) is located at the rear end of the conductor female insert 2 for welding wire connections.

[0058] At least one guide groove 22 is provided on the inner wall of the tube. The notch of the guide groove 22 is located at the front end of the conductor mother plug 2 and is an open notch. The guide groove 22 extends a predetermined length from the notch at the front end to the rear end of the conductor mother plug 2. The end of the guide groove 22 is a closed end. In addition, a positioning groove 23 connected to the end section of the guide groove 22 is provided at the closed end inside the conductor mother plug 2. The positioning groove 23 is also provided in the inner wall of the tube and forms an angle with the guide groove 22 that is greater than zero and less than 180 degrees. As an illustration of this embodiment, it is preferred that the angle between the positioning groove 23 and the guide groove 22 is designed to be an obtuse angle or a right angle. It is preferred that the corner position between the positioning groove 23 and the guide groove 22 is designed to be arc-shaped to improve the smoothness of the turn.

[0059] As can be seen from the above, in the conductor female plug 2 of this embodiment, since a guide groove 22 extending inward from the front end of the pipe mouth is provided on the inner wall of the conductor female plug 2, the end of the guide groove 22 is a closed end that prohibits further extension, and a positioning groove 23 is connected to the end, the conductor female plug 2 can be adapted to the conductor male plug 1 of the prior art, and can also be adapted to the conductor male plug 1 with a raised portion on the outer circumference. During insertion, the raised portion slides along the guide groove 22 to the rear end, and the user can make a certain rotation so that the conductor male plug 1 slides along the guide groove 22 into the positioning groove 23 at an angle. Under the action of radial external force, the conductor male plug 1 is not easy to slide out of the conductor female plug 2 of this embodiment, making the electrical plug connection not easy to loosen. In summary, the conductor female plug 2 of this embodiment has a high degree of adaptability, and its adaptation to the conductor male plug 1 with a raised portion can improve the reliability of the plug connection and is not easy to loosen.

[0060] As an illustration of this embodiment, this embodiment is illustrated by providing a group of guide and positioning parts consisting of a guide groove 22 and a positioning groove 23 on the inner wall of the conductor mother tube 2. Specifically, two or three groups can be designed, and the design and use principles are the same as above.

[0061] As an illustration of this embodiment, the depth of the positioning groove 23 provided on the inner wall of the conductor female plug 2 is consistent with the depth of its connecting guide groove 22, which is beneficial to improving the smoothness of connection with the conductor male plug 1 and facilitating connection.

[0062] As an illustration of this embodiment, it is preferred that the guide groove 22 extends along the axial direction of the conductor female plug-in tube 2 to improve the convenience of plugging and connecting and improve the efficiency of plugging and connecting.

[0063] As an illustration of this embodiment, the rear end of the conductor female insert 2 is designed to be a closed end, and the second welding position 21 of this embodiment is arranged on the rear end surface of the closed end.

[0064] As an illustration of this embodiment, it is preferred that a second raised edge 26 higher than the plane where the second welding position 21 is located is provided on half the circumference of the outer circumference of the second welding position 21 on the rear end face of the rear end closed end of the conductor female plug 2. The second raised edge 26 semi-surrounds the outer circumference of the second welding position 21, that is, part of the edge of the second welding position 21 is the edge of the rear end face of the rear seat 15. The design of the semi-enclosed second raised edge 26 is conducive to the positioning welding of the rear end wire and is convenient for operation.

[0065] As an illustration of this embodiment, a second identification portion is further provided on the rear end surface of the second raised edge 26, such as but not limited to a rotation direction identification or other mark for user convenience in connection. The second identification portion can be a raised portion 14 or a recessed portion designed in a predetermined shape.

[0066] The female conductor plug 2 of this embodiment can be used in lithium-ion batteries as a power connector. Conductive wires are connected to the electrodes of the lithium-ion battery via female conductor plugs 2 of this embodiment. One end of the wire is connected to the lithium-ion battery electrode, and the other end is welded to a second welding position 21 at the rear end of the female conductor plug 2. When an external electric device is connected to the lithium-ion battery as a power source, the male conductor plug 1 is used as the power plug of the electric device. The male conductor plug 1 of the electric device is inserted into the female conductor plug 2, which serves as the power interface of the lithium-ion battery, to achieve power connection.

[0067] Similarly, the conductor female plug 2 of this embodiment can be applied to the power connector of the electric device and plugged into the conductor male plug 1 connected to the electrode of the power supply.

[0068] The conductor female insert 2 of this embodiment is preferably, but not limited to, made of copper.

[0069] As an illustration of this embodiment, two guide grooves 22 are provided opposite to each other on the inner wall of the conductor female plug 2, and a positioning groove 23 is connected to the end of each conductor female plug 2. The direction of each guide groove 22 to the positioning groove 23 it is connected to is the same (clockwise or counterclockwise), and preferably the angle of rotation is also the same.

[0070] Example 3.

[0071] See also Figures 16-27 shown.

[0072] This embodiment provides a connector kit, including a conductor male plug 1 and a conductor female plug 2, which are independent of each other, wherein the front end of the conductor male plug 1 can be adapted to the front end of the conductor female plug 2 and can be plugged together to achieve electrical connection.

[0073] A welding position is provided at the rear end of the conductor female plug 2, which is marked as a first welding position 11, and a welding position is provided at the rear end of the conductor female plug 2, which is marked as a second welding position 21. The two welding positions are used for welding wires respectively.

[0074] At least one raised protrusion 14 is provided on the outer circumference of the front end section of the male conductor connector 1 (or the inner wall of the female conductor insert 2). At least one recessed guide groove 22 and positioning groove 23 are provided on the inner wall of the female conductor insert 2 (or the outer circumference of the front end section of the male conductor connector 1). The opening of each guide groove 22 faces the pipe opening, preferably but not limited to the pipe opening. The rear end of each guide groove 22 is closed. Each positioning groove 23 is connected to the rear end of a guide groove 22 and forms an angle greater than 0 degrees and less than 180 degrees with the positioning groove 23 it connects to, such as an obtuse angle or a right angle. Preferably, the guide groove 22 is transferred.

[0075] The principle of its plug-in application is that during plug-in, when the conductor male plug 1 is inserted into the conductor female plug 2, each protrusion 14 slides along each guide groove 22 respectively until the protrusion 14 slides along the guide groove 22 to the positioning groove 23 connected to the guide groove 22, and the conductor male plug 1 is locked in the conductor female plug 2.

[0076] As an illustration of this embodiment, the conductor male connector 1 of this embodiment may adopt the structure shown in the diagram of the first embodiment.

[0077] As an illustration of this embodiment, the conductor female insert 2 of this embodiment can adopt the structure shown in the figure in the second embodiment.

[0078] In this embodiment, one or both of the conductor male plug 1 and the conductor female insert 2 are copper parts.

[0079] The male conductor plug 1 and the female conductor plug 2 of this embodiment can be used together in a lithium-ion battery as a power connector. The male conductor plug 1 and the female conductor plug 2 of this embodiment are connected to the two electrodes of the lithium-ion battery through wires.

[0080] Simultaneously, the two electrodes of the power supply of the external electric device are similarly connected to the male conductor connector 1 and the female conductor plug 2 of this embodiment via wires. When the power supply is connected, the power connection between the external electric device and the lithium-ion battery is specifically achieved by plugging the male conductor connector 1 and the female conductor plug 2 therebetween, thereby establishing a power connection and providing power supply current to the electric device.

[0081] The above-described embodiments do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the scope of protection of this technical solution.

Claims

1. A conductor male connector, characterized in that: The front end section of the conductor male plug is provided with a plurality of axial slots, each of which divides the front end section of the conductor male plug into a plurality of axially separated petals, and a raised protrusion is provided on the outer side of at least one of the petals to limit the insertion into the recessed position of the inserted conductor female plug. A welding position is provided at the rear end of the conductor male connector for welding wire connections.

2. The conductor male connector according to claim 1, wherein: The front end section of the conductor male connector is in the shape of a tube with a hollow axis, and each of the petals is a tube wall.

3. The conductor male connector according to claim 2, wherein: The rear end of the conductor male plug is a closed end, and the welding is arranged on the rear end surface of the closed end.

4. The conductor male connector according to claim 3, wherein: At the rear end of the conductor male plug is a rear seat with an outer diameter larger than that of the conductor male plug. The rear seat serves as the rear closed end of the conductor male plug, and the welding position is arranged on the rear end surface of the rear seat.

5. The conductor male connector according to claim 4, characterized in that: A raised edge is provided on the periphery of the welding position and is higher than the plane where the welding position is located, and the raised edge partially surrounds the welding position.

6. The conductor male connector according to claim 5, characterized in that: A raised or recessed marking portion is also provided on the rear end surface of the raised edge.

7. The conductor male connector according to claim 1, wherein: The conductor male connector is a copper component.

8. The conductor male connector according to claim 1, wherein: The slots are evenly distributed along the conductor male plug.

9. A lithium-ion battery, characterized in that: include: Lithium-ion battery pack body, At least one conductor male connector according to any one of claims 1 to 8, wherein a power line is welded to the welding position at the rear end of each conductor male connector, and the other end of each power line is electrically connected to the positive electrode or the negative electrode of the lithium-ion battery pack body.

10. An electric device, characterized in that: include: Electric equipment drive circuit, At least one conductor female plug according to any one of claims 1 to 8, a power line is welded at the welding position of the rear end of each conductor female plug, and the other end of each power line is electrically connected to the positive pole or negative pole of the electric device drive circuit.

Images