Wiring terminal and battery using same

Abstract

The utility model relates to a wiring terminal, which comprises a grounding piece and a battery grounding position which are matched with each other, one side of the grounding piece facing the battery grounding position is provided with a convex point, one side of the battery grounding position facing the grounding piece is provided with a concave point, and the concave point and the convex point form a locking structure. Through the optimal design of adding the salient points on the grounding piece, correspondingly arranging the concave points at the grounding position of the battery, adding the embedding grooves in the pole and the like, the purposes of increasing the contact area and optimizing the contact performance are achieved, the wiring terminal is not easy to deform and loosen when being subjected to external force, and the safety performance of the whole vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery terminal technology, and in particular to a wiring terminal and a battery using the terminal. Background Technology

[0002] Currently, over 60% of electric two-wheelers on the market still use lead-acid batteries. These batteries have long dominated the electric two-wheeler battery market due to their mature technology and low cost. However, it is undeniable that lead-acid batteries pose numerous safety hazards, with insecure installation being a particularly prominent issue.

[0003] In actual use, due to the complex conditions of urban roads, bumpy roads such as potholes and speed bumps are common. In addition, some vehicles have unreasonable battery fixing devices designed at the factory, or improper installation due to user modifications afterward. This makes lead-acid batteries very prone to shaking during vehicle operation. Once the terminals become loose due to bumps, the circuit connection will be unstable. The instantaneous electrical spark could ignite the flammable gases inside the battery or surrounding flammable materials, leading to a serious accident such as a fire and vehicle ignition. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a terminal block with a reasonable structure and a battery using the terminal block. By adding protrusions to the grounding plate and indentations to the terminal post, the contact area between the two is increased, thereby improving the contact performance. The battery is less likely to deform under external force, resulting in loosening or fire.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A terminal block includes a grounding plate and a battery contact position that cooperate with each other. The grounding plate has a protrusion on the side facing the battery contact position, and the battery contact position has a concave point on the side facing the grounding plate. The concave point and the protrusion form a locking structure.

[0007] As a further improvement to the above technical solution:

[0008] The grounding plate includes an annular portion, a pressure pin extending from the annular portion, and a protrusion located on one side of the annular portion.

[0009] The protrusions are arranged in a circular array or symmetrically on the annular part. The protrusions are used to prevent the circumferential movement of the grounding plate.

[0010] The protrusion is a round dot.

[0011] The protrusion is configured as a frustum shape, with the top of the protrusion being a flat surface.

[0012] The pressure pins and protrusions are located on both sides of the grounding plate.

[0013] The battery contact point is located on the battery and is arranged around the circumference of the battery terminal.

[0014] The battery terminal is connected to the terminal post.

[0015] A locking nut is installed on the terminal post to apply pressure to the grounding plate and the battery grounding point.

[0016] A lead-acid battery pack utilizes the terminal blocks described in any one of the above-mentioned claims.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model provides a structure with anti-slip protrusions for lead-acid battery packs that have high requirements for grounding stability. That is, the object of protection of this application is a combination structure of a post with a recess and a grounding piece with a protrusion.

[0019] This application increases the contact area and optimizes the contact performance by adding protrusions to the grounding plate and embedding grooves to the pole post. When subjected to external force, the concave and convex structure firmly limits the position and is not easy to deform or loosen, thereby improving the safety performance of the whole vehicle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the terminal block of this application applied to a lead-acid battery.

[0021] Figure 2 This is a schematic diagram showing the relative positions of the wiring terminals and poles of this utility model.

[0022] Figure 3 This is a schematic diagram of the grounding plate structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the grounding plate of this utility model from another perspective.

[0024] Among them: 1. Grounding plate; 2. Battery grounding point; 3. Battery body;

[0025] 101. Circular part; 102. Seam foot; 103. Raised dot;

[0026] 201. Concave point. Detailed Implementation

[0027] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0028] like Figures 1-4 As shown, the wiring terminal in this embodiment includes a grounding plate 1 and a battery contact position 2 that cooperate with each other. The grounding plate 1 has a protrusion 103 on the side facing the battery contact position 2, and the battery contact position 2 has a concave point 201 on the side facing the grounding plate 1. The concave point 201 and the protrusion 103 form a locking structure.

[0029] The grounding plate 1 includes an annular portion 101, a pressure pin 102 extending from the annular portion 101, and a protrusion 103 disposed on one side of the annular portion 101.

[0030] The protrusions 103 are arranged in a circular array or symmetrically on the annular portion 101. The protrusions 103 are used to prevent circumferential movement of the grounding piece 1. In this embodiment, a circular array is preferred. The multiple concave and convex structures in the array can effectively prevent circumferential or radial movement, and the force at each concave and convex structure tends to be equal.

[0031] The protrusion 103 is a round dot.

[0032] The protrusion 103 is set to a frustum shape, and the top of the protrusion 103 is a flat surface.

[0033] The pin 102 and the protrusion 103 are located on both sides of the grounding plate 1.

[0034] Battery contact point 2 is disposed on the battery and is arranged around the circumference of the battery terminal post.

[0035] Battery terminal 2 is connected to the terminal post.

[0036] A locking nut is installed on the terminal post to apply pressure to the grounding plate 1 and the battery grounding point 2.

[0037] The lead-acid battery pack in this embodiment uses any of the above-mentioned terminal blocks.

[0038] The main structure and working principle of this application are as follows:

[0039] like Figure 1 As shown, this application provides a non-loosening terminal connection structure that can be applied to lead-acid batteries. A terminal post is provided on the battery body 3, and a battery grounding position 2 is provided near the terminal post. The battery grounding position 2 is equipped with a grounding plate 1. After the grounding plate 1 and the battery grounding position 2 are matched, an independent grounding safety system is formed, which does not affect the battery circuit where the terminal post is located.

[0040] like Figure 2 As shown, to facilitate illustrating the positions of grounding plate 1 and battery grounding plate 2, in Figure 2 The image shows the position of the annular portion 101 of the grounding plate 1, and the position of the recess 201 on the battery grounding position 2 below the position of the annular portion 101.

[0041] The structure of grounding piece 1 is as follows Figure 3 and Figure 4As shown, the device includes a ring body with lead pins 102 extending from it. The ring body fits onto the terminal post and is compatible with the battery contact point 2 at the bottom of the terminal post, which rests on the battery. The side of the ring body facing the battery contact point 2 has several protrusions 103, and the battery contact point 2 has recesses 201. If the battery moves within the battery compartment due to fixing issues, causing relative forces between the terminals, the mating structure of the recesses 201 and the protrusions 103 prevents relative rotation, enhances contact performance, and resists loosening under external forces.

[0042] Since a protrusion 103 is provided on one side of the grounding plate 1, the clamping foot 102 is located on the side of the grounding plate 1 away from the battery in order to ensure that the concave point 201 and the protrusion 103 can fit tightly together. Since the clamping foot 102 is ultimately required to hold the wire tightly, theoretically, as long as the clamping foot 102 can completely limit the wire, the grounding protection system can be completed.

[0043] In one embodiment, the protrusion 103 is hemispherical, which is the easiest to form, and the corresponding concave point 201 is also easy to form.

[0044] In another embodiment, the protrusion 103 adopts a conical structure, which is relatively easy to form. However, considering that the top of the conical structure is relatively sharp, gaps are likely to occur during assembly.

[0045] In another embodiment, the protrusion 103 is changed to a frustum shape to increase the contact area at the top of the protrusion 103. Since the top of the frustum is flat, the contact between it and the corresponding concave point 201 is more stable. Therefore, the hemispherical and frustum-shaped protrusions 103 are more practical.

[0046] As a further optimized implementation, an embedding groove can be formed on the outer circular surface of the bottom of the electrode post, and the annular inner wall of the grounding piece 1 falls into the embedding groove, further increasing the contact area between the grounding piece 1 and the battery structure. If current shunting is taken into consideration, an insulating layer can be added to the inner wall of the grounding piece 1 and the embedding groove at the bottom of the electrode post to ensure that the grounding piece 1 only serves to establish the current discharge path and balance the potential difference, without affecting the normal power supply of the battery circuit.

[0047] In all the above embodiments, the terminal post can be in the form of a stud, requiring a nut to tighten and secure it. When the nut is tightened on the terminal post, it simultaneously presses the grounding plate 1 on the battery, pressing the protrusion 103 on the grounding plate 1 into the recess 201 on the battery grounding position 2, forming a reliable locking connection structure.

[0048] The advantage of this application lies in its use of a raised-lower anti-loosening connection structure, which prevents the wiring terminals from easily coming loose or shaking after installation, improving user driving safety while reducing the probability of fire and ensuring life safety. The installation process is simple and can be performed using conventional methods; the nuts on the terminals are simultaneously tightened to ensure the relative position between the wiring terminals and the battery remains stable.

[0049] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A terminal block, characterized in that: It includes a grounding plate (1) and a battery contact position (2) that cooperate with each other. The grounding plate (1) has a protrusion (103) on the side facing the battery contact position (2), and the battery contact position (2) has a concave point (201) on the side facing the grounding plate (1). The concave point (201) and the protrusion (103) form a locking structure.

2. The terminal block as described in claim 1, characterized in that: The grounding piece (1) includes an annular portion (101), a pressure pin (102) extending from the annular portion (101), and a protrusion (103) disposed on one side of the annular portion (101).

3. The terminal block as described in claim 1, characterized in that: The protrusions (103) are arranged in a circular array or symmetrically on the annular portion (101), and the protrusions (103) are used to prevent the circumferential movement of the grounding piece (1).

4. The terminal block as described in claim 1, characterized in that: The protrusion (103) is a round dot.

5. The terminal block as described in claim 1, characterized in that: The protrusion (103) is configured as a frustum shape, and the top of the protrusion (103) is a plane.

6. The terminal block as described in claim 2, characterized in that: The pin (102) and the protrusion (103) are located on both sides of the grounding plate (1).

7. The terminal block as described in claim 1, characterized in that: The battery contact point (2) is located on the battery and is arranged around the circumference of the battery terminal.

8. The terminal block as described in claim 1, characterized in that: The battery terminal (2) is connected to the terminal post.

9. The terminal block as described in claim 1, characterized in that: A locking nut is installed on the pole to apply pressure to the grounding plate (1) and the battery grounding point (2).

10. A lead-acid battery pack, characterized in that, The terminal block described in any one of claims 1-9 is used.

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