Electrode leading-out tool

Abstract

The invention discloses an electrode leading-out tool, which belongs to the technical field of battery pack maintenance, and comprises a base body, an elastic contact and a connecting wire, the plurality of elastic contacts are arranged on the inner side of the base body at intervals; and the elastic contact is electrically connected with the connecting wire. The elastic contact is installed / pressed under the target electrode of the battery pack, and the elastic contact and the target electrode are in interference fit and are stably connected; the electrode is led out through a connecting wire, so that the battery pack is maintained; the device is convenient to carry, easy to operate and capable of stably leading out battery pack electrodes.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack maintenance, and in particular to an electrode lead-out tool. Background Art

[0002] Currently, battery packs produced by manufacturers are typically designed based on vehicle models. Each battery pack has a unique shape, and the size and position of the copper busbars on the pack electrodes vary. This means there is no standardized voltage lead-out tooling for voltage testing, balancing, and recharging. Therefore, each battery pack requires its own electrode lead-out tooling tailored to the module and pack size, requiring significant investment in equipment. Battery pack maintenance vendors are required to equip a wide variety of electrode lead-out tooling. This is particularly true for low-volume vehicle models, especially in small monitoring stations or field operations. Many specialized tooling, due to their bulk or high cost, cannot be readily matched, hindering operational progress. Summary of the Invention

[0003] In response to the above-mentioned technical problems existing in the prior art, the present invention provides an electrode lead-out tool that is easy to carry, simple to operate, and can stably lead out the battery pack electrodes.

[0004] The invention discloses an electrode lead-out tool, comprising a base, elastic contacts and connecting wires; a plurality of elastic contacts are arranged at intervals on the inner side of the base; and the elastic contacts are electrically connected to the connecting wires.

[0005] Preferably, a wiring ring is provided in the base; the elastic contact is electrically connected to the wiring ring;

[0006] One end of the connecting wire is installed in the wiring ring.

[0007] Preferably, it further comprises a covering member matched with the base, wherein the covering member comprises a flexible tension portion and fixing portions arranged on both sides of the flexible tension portion.

[0008] Preferably, the fixing portion is fixed to one side of the target electrode; the base is arranged inside the flexible tension portion, and the elastic contact is interference fit with the target electrode; the covering member is made of adhesive tape; and the fixing portion is adhered to one side of the target electrode.

[0009] Preferably, the base and the covering member are insulating members.

[0010] Preferably, the plurality of elastic contacts are arranged at intervals in the circumferential direction on the inner side of the base.

[0011] Preferably, the elastic contact comprises a base and a contact movably mounted on an inner side of the base; a spring is provided between the base and the contact.

[0012] Preferably, a cavity is provided inside the base, and the spring is installed in the cavity; and the contact is movably installed in the cavity.

[0013] Preferably, the maximum operating current of the electrode lead-out tooling is 8-10A; and the elastic stroke of the elastic contact is 0.5-2cm.

[0014] Preferably, the method for using the electrode lead-out tooling includes:

[0015] Disposing the flexible tension portion of the covering member on the outside of the base;

[0016] Pressing the flexible tension part and the base onto the target electrode so that the elastic contact on one side of the base is interference-fitted with the target electrode;

[0017] Keep pressing and install / stick the fixing parts on both sides of the flexible tension part near the target electrode. During the installation process, keep the covering stretched and tensile to complete the clamping of the electrode lead-out tooling;

[0018] After the test is completed, disassemble the fixing part and remove the electrode lead-out tooling.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the elastic contact is installed / pressed under the target electrode of the battery pack, the elastic contact and the target electrode are interference fit and stably connected; and the electrode is led out to the outside through a connecting wire to perform battery pack maintenance operations; it is easy to carry and easy to operate, and the battery pack electrode can be led out stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the electrode lead-out tooling of the present invention;

[0021] Figure 2 It is a structural diagram of the electrode lead-out tooling;

[0022] Figure 3 is a schematic diagram of the distribution of elastic contacts;

[0023] Figure 4 It is a cross-sectional view of the elastic contact.

[0024] Markings in the figure: 1 covering part, 11 fixing part, 12 flexible tension part, 13 filtering part; 2 electrode lead-out tooling; 21 base, 22 wiring ring, 25 elastic contact, 26 base, 27 contact, 28 spring, 3 connecting wire. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] The present invention is described in further detail below with reference to the accompanying drawings:

[0027] Overview: As new energy vehicles gain popularity and reach, battery packs are a core component, providing voltage and driving energy. As a core component and power source, battery packs are not only heavy but also complex in structure, consisting of multiple battery modules, each containing anywhere from a few to a dozen cells. The battery pack supplies voltage to the outside world through electrodes.

[0028] The battery pack layout and electrode lead-out structure of different manufacturers and models vary greatly. Battery pack maintenance service providers usually need to equip each model with a set of electrode lead-out tooling. In the absence of the corresponding electrode lead-out tooling, it is difficult to perform battery pack maintenance operations.

[0029] In a specific embodiment of the present invention, Figures 1-4 The electrode lead-out tooling 2 includes a base 21 , elastic contacts 25 and a connecting wire 3 ; a plurality of elastic contacts 25 are arranged at intervals on the inner side of the base 21 ; the elastic contacts 25 are electrically connected to the connecting wire 3 .

[0030] The elastic contact 25 is installed / pressed under the target electrode of the battery pack. The elastic contact 25 and the target electrode have an interference fit and are stably connected. The electrode is led out to the outside through the connecting line 3 to perform battery pack maintenance operations. It is easy to carry and easy to operate, and the battery pack electrode can be stably led out.

[0031] like Figure 2 The base 21 is provided with a wiring ring 22; the elastic contact 25 is electrically connected to the wiring ring 22; one end of the connecting wire 3 is installed in the wiring ring 22, for example, one end of the connecting wire 3 can be welded to the wiring ring 22. However, the structure is not limited to the wiring ring 22, and designs such as a wiring member, a wiring contact, and a wiring interface can also be used.

[0032] Figure 1The figure shows a covering 1 that mates with the base 21. The covering 1 includes a flexible tensioning portion 12 and fixing portions 11 disposed on either side of the flexible tensioning portion 12. The fixing portions 11 are fixed to one side of the target electrode; the base 21 is disposed inside the flexible tensioning portion 12 and has an interference fit with the target electrode. The covering 1 can be made of adhesive tape, such as electrical tape; the fixing portions 11 are adhered to one side of the target electrode. The base 21 and covering 1 are insulating components.

[0033] Optionally, a detachable retaining clip is provided on both sides of the flexible tension portion 12, and the retaining clip is clamped on both sides of the base 21 and the flexible tension portion 12, and the lower end of the retaining clip presses on the transition portion 13 between the flexible tension portion 12 and the fixed portion 11 to prevent the transition portion 13 from lifting due to tension, thereby reducing the possibility of the elastic contact 25 loosening.

[0034] In a specific embodiment, the method of using the electrode lead-out tool 2 includes:

[0035] Step 101 : Dispose the flexible tension portion 12 of the covering member 1 on the outside of the base 21 .

[0036] Step 102 : Press the flexible tension portion 12 and the base 21 onto the target electrode, so that the elastic contact 25 on one side of the base 21 is interference-fitted with the target electrode.

[0037] Step 103: While maintaining pressure, install / stick the fixing parts on both sides of the flexible tension part near the target electrode. During the installation process, maintain the stretching and tension of the covering part to complete the clamping of the electrode lead-out tooling.

[0038] Step 104: After the test is completed, the fixing part is disassembled and the electrode lead-out tooling is removed.

[0039] When using adhesive tape for installation, the elastic contacts 25 absorb some of the looseness caused by the tape. In specific tests, they can pass a maximum current of 10A. Adhesive tape is low-cost and widely available. It has strong environmental adaptability and can effectively adhere to almost any surface. The tape should be made of insulating material to avoid the risk of electric shock.

[0040] like Figure 3 Multiple elastic contacts 25 are arranged circumferentially on the inner side of the base 21. On the one hand, they have an anti-tilting effect, and on the other hand, they provide multiple points of contact, increase the contact surface, and improve the conductivity. When placed on an uneven surface or there are missed test points, even if some contact points are not touched, it will not affect the conductivity of the tooling.

[0041] like Figure 4The resilient contact 25 includes a base 26 and a contact 27 movably mounted on one side of the base 26. A spring 28 is disposed between the base 26 and the contact 27. The base 26 has a cavity within which the spring 28 is mounted. The contact 27 is movably mounted within the cavity. A limiting boss is provided on the contact 27. The base 26 is fixed to the base 21, and the inner end of the base 26 can be connected to the terminal ring 22 via a copper busbar.

[0042] In a specific test, the maximum working current of the electrode lead fixture is 8-10 A. The elastic stroke of the elastic contact 25 is 0.5-2 cm, which can effectively absorb the partial loosening caused by the soft connection of the tape.

[0043] Compared to existing, bulky and heavy factory-installed electrode extraction fixtures, the present invention's electrode extraction fixture is lightweight and portable, making it easy to use even in challenging environments. It can be used for irregular conductive components, temporary outdoor inspections, and when the number of inspections required is high and fixed tooling monitoring points are insufficient, the present invention can serve as a supplementary or backup device, quickly deploying it in situations where the factory-installed electrode extraction fixture is unavailable.

[0044] The present invention has a compact structure, is easy to operate and carry, and has strong adaptability to the working environment. Operators can start work after simple training, which can reduce the physical burden on operators. Designed as an independent individual, it is completely point-to-point operation and is not limited by the number of external operations of the battery pack; it has strong adaptability to the environment. The adhesive tape is a disposable item with low cost and can be replaced promptly after each use. The present invention is produced as an independent component and can be standardized. It combines the above advantages and has an original design concept.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electrode lead-out tool, characterized in that: It comprises a base (21), an elastic contact (25) and a connecting wire (3); A plurality of elastic contacts (25) are arranged at intervals on the inner side of the base (21); The elastic contact (25) is electrically connected to the connecting wire (3).

2. The electrode lead-out tooling according to claim 1, characterized in that: A wiring ring (22) is arranged in the base (21); The elastic contact (25) is electrically connected to the wiring ring (22); One end of the connecting wire (3) is installed in the wiring ring (22).

3. The electrode lead-out tooling according to claim 1, characterized in that: It also comprises a covering piece (1) matched with the base (21), wherein the covering piece (1) comprises a flexible tension portion (12) and fixing portions (11) arranged on both sides of the flexible tension portion (12).

4. The electrode lead-out tooling according to claim 3, characterized in that: The fixing portion (11) is fixed on one side of the target electrode; The base (21) is arranged inside the flexible tension portion (12), and the elastic contact is interference-fitted with the target electrode; The covering member (1) is made of adhesive tape; and the fixing portion (11) is adhered to one side of the target electrode.

5. The electrode lead-out tooling according to claim 3, characterized in that: The base (21) and the covering member (1) are insulating members.

6. The electrode lead-out tooling according to claim 1, characterized in that: The plurality of elastic contacts (25) are arranged at intervals in the circumferential direction on the inner side of the base (21).

7. The electrode lead-out tooling according to claim 1, characterized in that: The elastic contact (25) comprises a base (26) and a contact (27) movably mounted inside the base (26); A spring (28) is arranged between the base (26) and the contact (27).

8. The electrode lead-out tooling according to claim 7, characterized in that: The base (26) is provided with a cavity inside, and the spring (28) is installed in the cavity; The contact (27) is movably mounted in the cavity.

9. The electrode lead-out tooling according to any one of claims 1 to 8, characterized in that: The maximum working current of the electrode lead-out tooling is 8-10A; The elastic stroke of the elastic contact (25) is 0.5-2 cm.

10. The electrode lead-out tooling according to any one of claims 1 to 8, characterized in that: The use of the electrode lead-out tooling includes: The flexible tension portion (12) of the covering member (1) is arranged on the outside of the base body (21); The flexible tension part (12) and the base (21) are pressed onto the target electrode so that the elastic contact (25) on one side of the base (21) is interference-fitted with the target electrode; Keep pressing and install / stick the fixing parts on both sides of the flexible tension part near the target electrode. During the installation process, keep the stretching and tension of the covering part to complete the clamping of the electrode lead-out tooling; After the test is completed, disassemble the fixing part and remove the electrode lead-out tooling.

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