Insertion piece, relay, battery circuit breaking device, battery pack and electric device

Abstract

The utility model provides an insertion piece, a relay, a battery circuit breaking device, a battery pack and an electric device, the insertion piece is used for being plugged with a conductive terminal, the insertion piece comprises a fixing part, a floating part and a plugging part, and the fixing part is used for fixing the insertion piece; the floating part is bent along a first direction and a second direction; the plugging part is used for plugging with the conductive terminal, and the floating part is located between the fixed part and the plugging part. The insertion piece comprises the floating part, even if the overall position of the insertion piece is deviated from the conductive terminal, the insertion part can be connected with the conductive terminal in an inserted mode, and it is guaranteed that the insertion piece is electrically connected with the conductive terminal. And meanwhile, the floating part can absorb stress to prevent the insertion piece from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, and specifically provides a plug-in piece, a relay, a battery circuit breaker, a battery pack and an electrical device. Background Art

[0002] In the prior art, a mating plug is inserted into a terminal to establish electrical contact. To ensure proper insertion of the mating plug into the terminal, the terminal's installation position error must be minimal or zero; otherwise, the mating plug cannot be inserted into the terminal to achieve electrical connection. However, in practical applications, there is always some error in the terminal's installation position, making it difficult to achieve high precision and significantly complicating the mating operation. Therefore, in the prior art, to reduce the difficulty of mating, the only approach is to improve the terminal's installation position accuracy, which in turn leads to a sharp increase in costs. Summary of the Invention

[0003] In order to reduce the difficulty of matching and achieve electrical connection with the terminal, the utility model provides an insert for plugging with the conductive terminal. The insert includes a fixed portion, a floating portion and an insert portion. The fixed portion is used to fix the insert; the floating portion is bent along the first direction and the second direction; the insert portion is used to plug with the conductive terminal, and the floating portion is located between the fixed portion and the insert portion.

[0004] The insert includes a floating portion. Even if the insert's overall position deviates from the conductive terminal, the insertion portion can still be plugged into the conductive terminal, ensuring electrical connection between the insert and the conductive terminal. In addition, the floating portion can also absorb some of the stress when impacted.

[0005] In an optional technical solution of the present invention, the fixing portion and the plug-in portion are located on the same plane, which makes it easier to control the position accuracy of the plug-in portion and improve the matching accuracy with the conductive terminal.

[0006] In an optional technical solution of the present invention, the floating portion includes a first bend and a second bend, with a fillet α defined between the first and second bends. The radius R of the fillet α and the thickness H1 of the insert satisfy the following relationship: R ≤ 2H1. Compared to a larger fillet, a smaller fillet reduces the area subject to plastic deformation, improves overall insert stability, and makes it easier to maintain the alignment of the connecting portion and the fixed portion.

[0007] In an optional technical solution of the present invention, the rounded angle α satisfies: 60°≤α≤150°.

[0008] In an optional technical solution of the present invention, the distance D from the vertex of the rounded corner to the plane where the plug-in portion is located satisfies: 1mm≤D≤2.5mm.

[0009] In an optional technical solution of the present invention, the length L1 of the floating portion and the length L2 of the insert satisfy: 3:10≤L1:L2≤3:5.

[0010] In an optional technical solution of the present invention, a hollow structure is provided on the floating portion.

[0011] In an optional technical solution of the present invention, a transition portion is provided between the floating portion and the fixed portion, and the width of the transition portion is smaller than the width of the floating portion and the width of the fixed portion, so that a certain degree of floating can be achieved along the width direction of the insert.

[0012] In an optional technical solution of the present invention, the fixing portion is provided with a chamfer, which can be used as a fool-proof design to avoid errors in the installation of the insert.

[0013] The utility model also provides a relay, comprising the above-mentioned insert.

[0014] The utility model also provides a battery circuit breaker device, which comprises a conductive terminal and the above-mentioned plug-in piece, wherein the conductive terminal clamps the plug-in piece, and the plug-in piece and the conductive terminal are electrically connected.

[0015] The utility model also provides a battery pack, comprising the battery circuit breaker device.

[0016] The utility model also provides an electrical device, comprising the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an embodiment of an insert;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 for Figure 1 The main view;

[0020] Figure 4 is a three-dimensional diagram of a relay;

[0021] Figure 5 It is a schematic diagram of the connection between the plug and the conductive terminal.

[0022] Reference numerals

[0023] Insert 100;

[0024] a fixing portion 110;

[0025] A first bending portion 121, a second bending portion 122, a third bending portion 123, and a hollow structure 124;

[0026] Floating portion 120;

[0027] Plug-in portion 130;

[0028] transition section 140;

[0029] Conductive terminal 200;

[0030] Relay 300

[0031] Fastener 400. DETAILED DESCRIPTION

[0032] The following describes optional embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "distance", "width", "thickness", "up", "down", "left", "right", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0034] In the description of this utility model, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In order to reduce the difficulty of matching and achieve electrical connection with the conductive terminals, such as Figures 1 to 5 As shown, the present invention provides a plug 100 for plugging with a conductive terminal 200. The plug 100 includes a fixed portion 110, a floating portion 120 and a plug-in portion 130. The fixed portion 110 is used to fix the plug 100; the floating portion 120 is bent along a first direction (Z axis) and a second direction (Y axis); the plug-in portion 130 is used to plug with the conductive terminal 200, and the floating portion 120 is located between the fixed portion 110 and the plug-in portion 130.

[0037] The insert 100 includes a floating portion 120. Even if the insert 100 and the conductive terminal 200 are misaligned, the plug portion 130 can still be plugged into the conductive terminal 200, ensuring electrical connection between the insert 100 and the conductive terminal 200. Furthermore, the floating portion 120 can also absorb some of the stress when impacted.

[0038] In an optional embodiment of the present invention, as Figure 3 As shown, the fixed portion 110 and the plug-in portion 130 are located on the same plane. This makes it easier to control the positional accuracy of the plug-in portion 130, improving the accuracy of its mating with the conductive terminal 200. Keeping the fixed portion 110 and the plug-in portion 130 on the same plane facilitates the mating of the insert 100 and the conductive terminal 200. Of course, the fixed portion 110 and the plug-in portion 130 do not need to be on the same plane; the floating portion 120 can also be used to allow the insert 100 to be mated with the conductive terminal 200.

[0039] In an optional embodiment of the present invention, as Figure 3 As shown, the floating portion 120 includes a first bend portion 121 and a second bend portion 122. A fillet α is provided between the first bend portion 121 and the second bend portion 122. The radius R of the fillet α and the thickness H1 of the insert 100 satisfy the relationship: R≤2H1. Compared with setting a large fillet, setting a small fillet α can make the portion that will undergo plastic deformation smaller, and the radius of the smallest fillet is close to the thickness of the material. Therefore, setting the radius R of the fillet α and the thickness H1 of the insert 100 to satisfy the above relationship can make the overall stability of the insert 100 higher and make it easier to control the plug-in portion 130 and the fixed portion 110 to be on the same plane. Figure 3 As shown, the floating portion 120 may further include a third bend 123, and a radius α is also provided between the second bend 122 and the third bend 123. The number of bends included in the floating portion 120 is not limited and can be determined based on actual needs. In this embodiment, the floating portion 120 includes a linear bend and a small radius between the two bends. Alternatively, the floating portion 120 may include several connected large arcs.

[0040] In an optional embodiment of the present invention, as Figure 1-3As shown, the fillet α can satisfy: 60o≤α≤150o. The distance D from the vertex of the fillet to the plane where the plug-in portion 130 is located satisfies: 1mm≤D≤2.5mm. If the distance D from the vertex of the fillet to the plane where the plug-in portion 130 is located is too large, the floating amplitude of the plug 100 will be too large and exceed the actual floating requirements, and at the same time, the larger the space occupied in the Y direction, the more space will be wasted. If the D value is too small, although the Y-direction space is saved, the floating effect is insufficient. Setting D in the above-mentioned numerical range can take into account both better floating effect and space utilization. In an optional embodiment of the present utility model, the length L1 of the floating portion 120 and the length L2 of the plug 100 satisfy: 3:10≤L1:L2≤3:5. Similarly, setting the ratio of L1 and L2 in the above-mentioned numerical range can take into account both appropriate floating amplitude in the Z direction and space utilization in the Z direction.

[0041] In an optional embodiment of the present invention, as Figure 1 As shown, a hollow structure 124 is provided on the floating portion 120. The hollow structure 124 penetrates the floating portion 120 along the Y direction. The setting of the hollow structure 124 can make the insert 100 float in the X direction. Combined with the floating in the Z and Y directions, the insert 100 can achieve three-way floating. Specifically, as Figure 1 As shown, the hollow structure 124 is mainly arranged on the floating portion 120. The hollow structure 124 is a whole through hole, and of course it can also be set as a plurality of through holes. In addition, the shape of the hollow structure 124 is not limited and can be determined according to actual needs.

[0042] In an optional embodiment of the present invention, as Figure 1-2 As shown, a transition portion 140 is provided between the floating portion 120 and the fixed portion 110. The width of the transition portion 140 is smaller than both the width of the floating portion 120 and the width of the fixed portion 110. This allows for a certain degree of float along the width direction (X-direction) of the plug portion 130. A chamfer is provided at the transition between the floating portion 120 and the transition portion 140, and a chamfer is provided at the transition between the transition portion 140 and the fixed portion 110. Optionally, the fixed portion 110 is provided with a chamfer, which can serve as a foolproof design to prevent incorrect installation of the plug. For example, in a practical situation, the plug 100 is installed on a relay. The bent portion of the floating portion 120 will inevitably overlap with related components in the Z-direction. Therefore, the lowest bent section of the floating portion 120 must be bent toward the relay to ensure space for the bent section. The position of the foolproof design corresponds to the orientation of the lowest bent section, ensuring correct installation of the plug 100.

[0043] like Figure 4As shown, the present invention further provides a relay 300 including an insert 100. Insert 100 can be directly mounted on the outside of the relay 300 housing via a fastener 400, for example, for electrical connection of high-voltage sampling. Insert 100 can also be connected to a component of the relay 300 housing and then extended from the relay 300 housing, for example, for electrical connection of low-voltage power supply.

[0044] The present invention also provides a battery circuit breaker device, which includes a conductive terminal 200 and a plug 100. Figure 5 As shown, the conductive terminal 200 clamps the plug 100 , and the plug 100 and the conductive terminal 200 are electrically connected.

[0045] The utility model also provides a battery pack, comprising the battery circuit breaker device.

[0046] The present invention also provides an electrical device. The electrical device includes a battery pack according to an optional embodiment. The electrical device may include, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, and the like. The electric toy may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. The spacecraft may include airplanes, rockets, space shuttles, and spacecraft.

[0047] Thus far, the technical solutions of the present invention have been described in conjunction with the optional embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A plug for plugging into a conductive terminal, characterized in that: The insert includes: A fixing portion, used for fixing the insert; a floating portion bent along a first direction and a second direction; and The plug-in portion is used to be plugged into the conductive terminal, and the floating portion is located between the fixed portion and the plug-in portion.

2. The insert according to claim 1, wherein: The fixing portion and the plug-in portion are located on the same plane.

3. The insert according to claim 1, wherein: The floating portion includes a first bending portion and a second bending portion. A fillet α is provided between the first bending portion and the second bending portion. The radius R of the fillet α and the thickness H1 of the insert satisfy: R≤2H1.

4. The insert according to claim 3, wherein: The fillet α satisfies: 60 o ≤α≤150 o .

5. The insert according to claim 3, wherein: The distance D from the vertex of the fillet to the plane where the plug-in portion is located satisfies the following: 1 mm ≤ D ≤ 2.5 mm.

6. The insert according to claim 1, wherein: The length L1 of the floating portion and the length L2 of the insert satisfy: 3:10≤L1:L2≤3:

5.

7. The insert according to claim 1, wherein: The floating portion is provided with a hollow structure.

8. The insert according to claim 1, wherein: A transition portion is provided between the floating portion and the fixed portion, and a width of the transition portion is smaller than a width of the floating portion and a width of the fixed portion.

9. The insert according to claim 1, wherein: The fixing portion is provided with a chamfer.

10. A relay, characterized in that: The invention comprises the insert according to any one of claims 1 to 9.

11. A battery circuit breaker device, characterized in that: The invention comprises a conductive terminal and an inserting piece according to any one of claims 1 to 9, wherein the conductive terminal clamps the inserting piece, and the inserting piece is electrically connected to the conductive terminal.

12. A battery pack, characterized in that: Comprising the battery disconnect device as claimed in claim 11.

13. An electrical device, characterized in that: Comprising the battery pack as claimed in claim 12.

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