A nickel-zinc battery pack series connection device

Abstract

The utility model belongs to battery connection technical field relates to a kind of nickel-zinc battery battery pack series connection device, including electric vehicle bottom support, the inside symmetry of electric vehicle bottom support is equipped with positive pole connector and negative pole connector, the inside of electric vehicle bottom support is equipped with multiple nickel-zinc battery bodies, and the one end of multiple nickel-zinc battery bodies near negative pole connector is provided with negative pole battery interface, the inside of the one end of nickel-zinc battery body far from negative pole battery interface is equipped with positive pole battery connector, the negative pole battery interface and positive pole battery connector slidingly connect, the upper end of negative pole connector is provided with connecting mechanism, the upper end of electric vehicle bottom support is provided with fastening mechanism, and the inside of electric vehicle bottom support is equipped with cooling mechanism.The utility model is by modularization design, so that nickel-zinc battery body can be quickly installed and disassembled, and then the technical threshold of routine maintenance is significantly reduced, especially suitable for the application scene needing to frequently replace battery.

Description

Technical Field

[0001] This utility model belongs to the field of battery connection technology and relates to a series connection device for nickel-zinc battery packs. Background Technology

[0002] Nickel-zinc batteries are high-performance batteries with advantages such as high energy density, stable discharge voltage, and long cycle life. They are widely used in various electronic devices, power tools, and new energy fields. In practical applications, in order to meet the voltage and capacity requirements of equipment, multiple nickel-zinc batteries are often connected in series to form a battery pack.

[0003] In practical applications, to meet the voltage requirements of electric bicycles, multiple nickel-zinc batteries need to be connected in series to form a battery pack. Currently, the series connection of nickel-zinc battery packs mostly adopts wire welding or terminal connection. In the specific installation environment of the electric bicycle base, the defects of these methods are particularly prominent:

[0004] Firstly, welding is a complex process requiring specialized personnel and equipment. The confined space inside the electric scooter base makes welding extremely difficult. Furthermore, once welding is complete, disassembling and repairing the battery pack necessitates removing the base components, making the process complicated.

[0005] Secondly, the ventilation inside the battery pack base is poor, and the existing connection device lacks a targeted heat dissipation structure. The heat generated at the connection points when the battery pack is working is difficult to dissipate, which can easily lead to excessively high local temperatures, affecting battery performance and lifespan.

[0006] Therefore, developing a series connection device for nickel-zinc battery packs that is suitable for the internal installation environment of electric vehicle bases, is easy to connect, and has good heat dissipation is of great practical significance for improving the performance of electric vehicle power systems. Utility Model Content

[0007] The technical problems to be solved by this utility model are as follows: First, welding connection is cumbersome and requires professional personnel and equipment. However, the internal space of the battery vehicle base is small, making welding extremely difficult. Moreover, once welding is completed, the battery pack needs to be disassembled and repaired by removing the base components, which is a complicated process. Second, the ventilation conditions inside the battery vehicle base are poor, and the existing connection device lacks a targeted heat dissipation structure. The heat generated at the connection point when the battery pack is working is difficult to dissipate, which can easily lead to excessively high local temperatures, affecting battery performance and service life.

[0008] This utility model discloses a series connection device for nickel-zinc battery packs, including a bottom bracket for an electric vehicle. A positive terminal and a negative terminal are symmetrically installed on the inner side of the bottom bracket. Multiple sets of nickel-zinc battery bodies are installed on the inner side of the bottom bracket. A negative battery interface is provided at the end of each set of nickel-zinc battery bodies near the negative terminal. A positive battery interface is provided on the inner side of the end of each nickel-zinc battery body away from the negative battery interface. The negative battery interface and the positive battery interface are slidably engaged. A connecting mechanism is provided at the upper end of the negative terminal. A fastening mechanism is provided at the upper end of the bottom bracket. A cooling mechanism is installed on the inner side of the bottom bracket.

[0009] The connection mechanism includes a connector, quick interface a, and quick interface b. The upper end of the negative terminal connector is provided with a connector, and quick interface a and quick interface b are provided on the inner side of the lower end of the connector. Quick interface a is slidably engaged with the negative battery interface, and quick interface b is slidably engaged with the negative terminal connector.

[0010] The fastening mechanism includes a fastening plate, a connecting plate, screws, and threaded holes. The fastening plate is provided at the upper end of the bottom bracket of the electric vehicle. The two ends of the fastening plate are symmetrically fixedly connected to the connecting plates. The inner side of the connecting plate is threaded with screws. Multiple sets of threaded holes are opened on the inner side of the upper end of the bottom bracket of the electric vehicle, and the screws are threadedly connected to the threaded holes.

[0011] The cooling mechanism includes ventilation ducts, and multiple sets of ventilation ducts are installed on the inner side of the bottom bracket of the electric vehicle.

[0012] Both ends of the ventilation duct are equipped with barrier nets.

[0013] A handle is rotatably connected to the inner side of the upper end of the nickel-zinc battery body.

[0014] Compared with the prior art, the advantages of this utility model are: through modular design, the nickel-zinc battery body can be quickly installed and disassembled, thereby significantly reducing the technical threshold for daily maintenance, and is particularly suitable for application scenarios that require frequent battery replacement.

[0015] It utilizes multiple ventilation ducts to achieve cooling by taking advantage of natural airflow during cycling. It is energy-efficient, has no moving parts, and has low maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the grip structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the positive and negative terminals of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the ventilation duct of this utility model.

[0021] Figure 5 This is a schematic diagram of the negative electrode battery interface of this utility model.

[0022] Figure 6 This is a schematic diagram of the positive electrode battery connector of this utility model.

[0023] Figure 7 This is a structural schematic diagram of the connector of this utility model.

[0024] In the diagram: 101, bottom bracket of the electric vehicle; 102, positive terminal connector; 103, negative terminal connector; 104, nickel-zinc battery body; 105, negative battery interface; 106, positive battery connector; 201, connector; 202, quick interface a; 203, quick interface b; 301, fastening plate; 302, connecting plate; 303, screw; 304, threaded hole; 401, ventilation duct; 501, barrier net; 601, handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1

[0030] like Figure 1- Figure 7 As shown, the device includes a bottom support 101 for an electric scooter. A positive terminal 102 and a negative terminal 103 are symmetrically installed on the inner side of the bottom support 101. Multiple sets of nickel-zinc battery bodies 104 are installed on the inner side of the bottom support 101, arranged linearly. A negative battery interface 105 is provided at the end of each nickel-zinc battery body 104 near the negative terminal 103. A positive battery interface 106 is provided on the inner side of the end of each nickel-zinc battery body 104 away from the negative battery interface 105. The negative battery interface 105 and the positive battery interface 106 are slidably engaged. A connecting mechanism is provided at the upper end of the negative terminal 103. A fastening mechanism is provided at the upper end of the bottom support 101. A cooling mechanism is installed on the inner side of the bottom support 101.

[0031] The connection mechanism includes a connector 201, a quick interface a202, and a quick interface b203. The upper end of the negative terminal connector 103 is provided with the connector 201, and the inner side of the lower end of the connector 201 is provided with quick interface a202 and quick interface b203. Quick interface a202 is slidably engaged with the negative battery interface 105, and quick interface b203 is slidably engaged with the negative terminal connector 103.

[0032] The fastening mechanism includes a fastening plate 301, a connecting plate 302, a screw 303, and a threaded hole 304. The fastening plate 301 is provided at the upper end of the bottom bracket 101 of the electric vehicle. The two ends of the fastening plate 301 are symmetrically fixedly connected to the connecting plate 302. The inner side of the connecting plate 302 is threaded with a screw 303. Multiple sets of threaded holes 304 are opened on the inner side of the upper end of the bottom bracket 101 of the electric vehicle. The screw 303 is threadedly connected to the threaded hole 304.

[0033] A handle 601 is rotatably connected to the inner side of the upper end of the nickel-zinc battery body 104; the handle 601 facilitates handling and positioning.

[0034] During operation, firstly, a set of nickel-zinc battery bodies 104 are placed inside the bottom bracket 101 of the electric vehicle, so that the positive battery connector 106 of this set is fitted on the outside of the positive connector 102. Then, another set of positive battery connectors 106 is fitted on the outside of the negative battery interface 105 of this set, and so on, to achieve rapid series connection of multiple sets of nickel-zinc battery bodies 104.

[0035] After the nickel-zinc battery body 104 near the negative terminal connector 103 is installed, the quick interface a202 and quick interface b203 inside the connector 201 are respectively sleeved on the negative battery interface 105 and the outside of the negative terminal connector 103.

[0036] The fastening plate 301 is then placed on the upper end of the bottom bracket 101 of the electric vehicle. The rotating screw 303 is used to install the fastening plate 301 on the upper end of the bottom bracket 101 of the electric vehicle through the connecting plate 302 and the threaded hole 304, thereby achieving overall clamping of the battery pack.

[0037] Example 2

[0038] like Figure 3 - Figure 5 As shown, the cooling mechanism includes a ventilation duct 401, and multiple sets of ventilation ducts 401 are installed on the inner side of the bottom bracket 101 of the electric vehicle.

[0039] Both ends of the ventilation duct 401 are equipped with barrier nets 501; the barrier nets 501 can prevent dust, gravel and other debris from entering the duct.

[0040] When the electric vehicle is in operation, external air enters from the front end of the ventilation duct 401 under the action of wind pressure, flows through the inside of the duct, and finally exits from the rear end. The flowing air directly performs forced convection heat dissipation on the nickel-zinc battery body 104, effectively reducing the battery operating temperature.

[0041] This step utilizes the natural airflow during cycling to achieve cooling, which is energy-efficient, has no moving parts, and has low maintenance costs.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A series connection device for nickel-zinc battery packs, comprising a bottom bracket (101) for an electric vehicle, characterized in that: The bottom bracket (101) of the electric vehicle is symmetrically equipped with a positive terminal connector (102) and a negative terminal connector (103) on its inner side. Multiple sets of nickel-zinc battery bodies (104) are installed on the inner side of the bottom bracket (101). A negative battery interface (105) is provided at the end of the multiple sets of nickel-zinc battery bodies (104) near the negative terminal connector (103). A positive battery connector (106) is provided on the inner side of the end of the nickel-zinc battery body (104) away from the negative battery interface (105). The negative battery interface (105) and the positive battery connector (106) are slidably engaged. A connecting mechanism is provided at the upper end of the negative terminal connector (103). A fastening mechanism is provided at the upper end of the bottom bracket (101) of the electric vehicle. A cooling mechanism is installed on the inner side of the bottom bracket (101) of the electric vehicle.

2. The nickel-zinc battery pack series connection device according to claim 1, characterized in that: The connection mechanism includes a connector (201), a quick interface a (202), and a quick interface b (203). The upper end of the negative terminal connector (103) is provided with the connector (201), and the inner side of the lower end of the connector (201) is provided with quick interface a (202) and quick interface b (203). Quick interface a (202) is slidably engaged with the negative terminal battery interface (105), and quick interface b (203) is slidably engaged with the negative terminal connector (103).

3. The series connection device for a nickel-zinc battery pack according to claim 1, characterized in that: The fastening mechanism includes a fastening plate (301), a connecting plate (302), a screw (303), and a threaded hole (304). The fastening plate (301) is provided at the upper end of the bottom bracket (101) of the electric vehicle. The two ends of the fastening plate (301) are symmetrically fixedly connected to the connecting plate (302). The inner side of the connecting plate (302) is threaded with a screw (303). Multiple sets of threaded holes (304) are opened on the inner side of the upper end of the bottom bracket (101) of the electric vehicle. The screw (303) is threadedly connected to the threaded hole (304).

4. The series connection device for a nickel-zinc battery pack according to claim 1, characterized in that: The cooling mechanism includes ventilation ducts (401), and multiple sets of ventilation ducts (401) are installed on the inner side of the bottom bracket (101) of the electric vehicle.

5. The series connection device for a nickel-zinc battery pack according to claim 4, characterized in that: Both ends of the ventilation duct (401) are equipped with barrier nets (501).

6. The nickel-zinc battery pack series connection device according to claim 1, characterized in that: A handle (601) is rotatably connected to the inner side of the upper end of the nickel-zinc battery body (104).

Images