Nickel-hydrogen battery module

Abstract

The nickel-hydrogen battery module of the present application is provided with a bottom shell, a nickel-hydrogen battery pack and a connecting set. When it is needed to connect the nickel-hydrogen batteries in parallel, i.e. when it is needed to lead out the total positive electrode and the total negative electrode of the nickel-hydrogen battery module, each locking post on the busbar is correspondingly threaded through each through hole, and each locking nut is correspondingly screwed on the end of each locking post, thus completing the parallel connection of the nickel-hydrogen batteries and leading out the total positive electrode and the total negative electrode of the nickel-hydrogen battery module. The parallel connection can be realized without the aid of external tools, and the parallel connection operation is simple and convenient. In addition, even if an operation mistake occurs, each locking nut can be correspondingly unscrewed from the end of each locking post, thus facilitating disassembly.

Description

Technical Field

[0001] This invention relates to the field of battery module technology, and in particular to a nickel-metal hydride battery module. Background Technology

[0002] Nickel-metal hydride (NiMH) batteries are rechargeable batteries, meaning they can be used repeatedly. During charging and discharging, some electrical energy is converted into heat, which is normal during normal charging and discharging. However, many users use high-current chargers for fast charging, causing abnormal temperature rise in the NiMH battery, shortening its lifespan, and potentially leading to increased internal pressure and explosion.

[0003] A battery module consisting of several nickel-metal hydride (NiMH) batteries connected in series or parallel is called a NiMH battery module. Taking parallel connection as an example, in the existing technology, to achieve parallel connection of several NiMH batteries, a busbar is used to connect to the positive or negative terminal of each NiMH battery, thereby leading to the total positive and negative terminals of the NiMH battery module. Although the above method can achieve parallel connection of NiMH batteries, it still has the following drawbacks.

[0004] First, the above parallel connection method requires welding the busbar to the positive or negative terminal of each nickel-metal hydride battery in order to bring out the total positive and negative terminals of the nickel-metal hydride battery module. Welding tools are required to complete the above operation.

[0005] Second, in the above parallel connection method, if the positive or negative electrode of one of the nickel-metal hydride batteries is not welded to the busbar during the welding process, the nickel-metal hydride battery module cannot lead out the total positive and negative electrodes. That is, the above method requires that the positive and negative electrodes of each nickel-metal hydride battery be welded to the busbar in order to lead out the total positive and negative electrodes.

[0006] Third, with the above-mentioned parallel connection method, if the operator makes a mistake during the welding process, it will take a lot of time to separate the busbar from the positive or negative electrode of the nickel-metal hydride battery before proceeding to the next step. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a nickel-metal hydride battery module that can be connected in parallel without the need for external tools, is simple and convenient to operate in parallel, is easy to disassemble, and is easy to correct operational errors.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] A nickel-metal hydride battery module, comprising:

[0010] Bottom shell;

[0011] A nickel-metal hydride (NiMH) battery pack, comprising a plurality of NiMH batteries, each NiMH battery being disposed within the bottom shell, each NiMH battery having two electrode portions, and each electrode portion having a through hole; and

[0012] The connecting kit includes two busbar assemblies, each of which includes a busbar and several locking nuts. Several locking pins are provided on the busbars, and each locking pin has an external thread at its end. Each locking nut has an internal thread, and each locking pin passes through a corresponding through hole. Each locking nut is screwed into the end of each locking pin.

[0013] In one embodiment, the busbar is provided with a plurality of weight-reducing grooves, and there is a gap between each adjacent weight-reducing groove.

[0014] In one embodiment, the busbar has 6 to 8 weight-reducing grooves.

[0015] In one embodiment, the busbar is provided with a handle.

[0016] In one embodiment, the handle has a hanging hole.

[0017] In one embodiment, the hanging hole is a round hole.

[0018] In one embodiment, a chamfer is provided on the busbar at a position away from the handle.

[0019] In one embodiment, both electrode portions are provided with a bent portion.

[0020] The advantages and beneficial effects of this invention compared to the prior art are as follows:

[0021] The nickel-metal hydride battery module of the present invention, by setting up a bottom shell, a nickel-metal hydride battery pack and a connecting kit, allows for parallel connection of the nickel-metal hydride batteries when it is necessary to bring out the total positive and negative terminals of the nickel-metal hydride battery module. This is achieved by inserting each locking post on the busbar through the corresponding through hole and screwing each locking nut onto the end of each locking post, thus completing the parallel connection of the nickel-metal hydride batteries and bringing out the total positive and negative terminals of the nickel-metal hydride battery module. Parallel connection can be achieved without the need for external tools, making the operation simple and convenient. Furthermore, even if an operational error occurs, disassembly can be easily achieved by simply unscrewing each locking nut from the end of each locking post. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a nickel-metal hydride battery module according to one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the busbar assembly according to one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the electrode portion according to one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the assembly structure of the bottom shell and the nickel-metal hydride battery pack in one embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the buckle structure in one embodiment of the present invention;

[0028] Figure 6 for Figure 4 An enlarged view at point A;

[0029] Figure 7 for Figure 4 Enlarged diagram at point B. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figure 1 A nickel-metal hydride battery module 10 includes a bottom shell 11, a nickel-metal hydride battery pack 200, and a connecting kit 300.

[0034] It should be noted that the bottom shell 11 serves as an encapsulation unit; the nickel-metal hydride battery pack 200 is the core component of the nickel-metal hydride battery module 10, serving as both an energy storage unit and an energy output unit; and the connecting kit 300 is used to bring out the total positive and negative terminals of the nickel-metal hydride battery module 10.

[0035] Please refer to the following: Figure 1 and Figure 2 The nickel-metal hydride battery pack 200 includes a plurality of nickel-metal hydride batteries 210, each nickel-metal hydride battery 210 is disposed inside the bottom shell 11, each nickel-metal hydride battery 210 is provided with two electrode portions 211, and each electrode portion 211 is provided with a through hole 211a.

[0036] Therefore, it should be noted that each nickel-metal hydride battery 210 serves the functions of energy storage and energy output; each nickel-metal hydride battery 210 is provided with two electrode parts 211, one electrode part 211 corresponds to the positive electrode of the nickel-metal hydride battery 210, and the other electrode part 211 corresponds to the negative electrode of the nickel-metal hydride battery 210.

[0037] Please refer to the following: Figure 1 and Figure 3 The connecting kit 300 includes two busbar groups 310. Each busbar group 310 includes a busbar 311 and a number of locking nuts 312. The busbar 311 is provided with a number of locking pins 311a. Each locking pin 311a has an external thread at its end. Each locking nut 312 has an internal thread. Each locking pin 311a passes through a corresponding through hole 211a. Each locking nut 312 is screwed into the end of each locking pin 311a.

[0038] Therefore, it should be noted that when it is necessary to connect the nickel-metal hydride batteries 200 in parallel, that is, when it is necessary to bring out the total positive and total negative terminals of the nickel-metal hydride battery module 10, the locking pins 311a on the busbar 311 are inserted through the corresponding through holes 211a, and the locking nuts 312 are screwed into the ends of the locking pins 311a. This completes the connection of the nickel-metal hydride batteries 200 and brings out the total positive and total negative terminals of the nickel-metal hydride battery module 10. Parallel connection can be achieved without the aid of external tools, and the parallel connection operation is simple and convenient. In addition, even if an operational error occurs, the locking nuts 312 can be unscrewed from the ends of the locking pins 311a, making disassembly convenient.

[0039] Furthermore, please refer again. Figure 3 In one embodiment, the busbar 311 is provided with a plurality of weight-reducing grooves 311b, and there is a gap between each adjacent weight-reducing groove 311b.

[0040] Therefore, it should be noted that the presence of several weight-reducing grooves 311b can appropriately reduce the overall weight of the busbar 311, thereby improving the assembly efficiency of the busbar 311 to a certain extent. Specifically, the busbar 311 has 6 to 8 weight-reducing grooves 311b.

[0041] Furthermore, please refer again. Figure 3 In one embodiment, a handle 311c is provided on the busbar 311.

[0042] Therefore, it should be noted that the handle 311c is designed to make it convenient for operators to grab the busbar 311.

[0043] Furthermore, please refer again to 3. In one embodiment, the handle 311c is provided with a hanging hole 311c-1.

[0044] Therefore, it should be noted that the opening of the hanging hole 311c-1 facilitates the storage of the busbar 311. For example, a hook can be used to pass through the hanging hole 311c-1, thus enabling the storage of the busbar 311. Specifically, the hanging hole 311c-1 is a round hole.

[0045] Furthermore, please refer again. Figure 3 In one embodiment, a chamfered portion 311d is provided on the busbar 311 at a position away from the handle 311c.

[0046] Therefore, it should be noted that the chamfered portion 311d can reduce the overall volume of the busbar 311, making the overall structure of the busbar 311 more compact.

[0047] Furthermore, please refer again. Figure 2In one embodiment, each of the two electrode portions 211 is provided with a bent portion 211b.

[0048] Therefore, it should be noted that the setting of the bending part 211b makes the overall structure of the electrode part 211 more compact.

[0049] Furthermore, in order to flexibly increase or decrease the number of nickel-metal hydride batteries 210 in the nickel-metal hydride battery module 10, so as to assemble nickel-metal hydride battery modules 10 of various specifications, please refer to... Figure 4 In one embodiment, the outer shell 11 includes a plurality of connecting frames 400, each connecting frame 400 including two feet 410 and a heat insulation plate 420. The two feet 410 are spaced apart, and the heat insulation plate 420 is disposed between the two feet 410, dividing the space between the two feet 410 into two equal semi-enclosed cavities.

[0050] Multiple connecting frames 400 are connected end to end, and the semi-enclosed cavities on adjacent connecting frames 400 form a battery receiving cavity, each of which is used to accommodate a nickel-metal hydride battery 210.

[0051] To facilitate connecting multiple 400-series connecting frames end-to-end, please refer to the following: Figure 5 and Figure 6 The outer shell 11 also includes a plurality of buckles 500. Each buckle 500 includes a connecting rod 510 and barbs 520 disposed at both ends of the connecting rod 510. The top and bottom of the foot 410 are provided with two first positioning grooves 411 arranged side by side. The first positioning grooves 411 on the top and bottom of two adjacent feet 410 together form two limiting cavities, and each limiting cavity is used to accommodate one buckle 500.

[0052] Each of the first positioning grooves 411 is provided with a first base 21 and a first blocking protrusion 22. The first blocking protrusion 22 is located on the side wall of the first base 21 and is positioned towards the inner wall of the first positioning groove 411. The inner wall of the first positioning groove 411 and the first base 21 together form a first clearance cavity 6a that matches the connecting rod 510. The inner wall of the first positioning groove 411 and the outer wall of the first blocking protrusion 22 together form a first contour cavity 7a that matches the barb 520. The first clearance cavity 6a is connected to the first contour cavity 7a.

[0053] Please refer to the following: Figure 4 and Figure 7The outer shell 11 also includes two end caps 600, which are respectively connected to the connecting frames 400 at both ends of the outer shell 11. The end caps 600 are in the shape of a "C" and are used to close the semi-closed cavity.

[0054] Each of the end caps 600 has a second positioning groove 610 on its top and bottom. The second positioning groove 610 and the first positioning groove 411 together form a positioning cavity, which is used to accommodate one of the buckles 500.

[0055] Each of the second positioning grooves 610 is provided with a second base 620 and a second blocking protrusion 630. The second blocking protrusion 630 is located on the side wall of the second base 620 and is oriented towards the inner wall of the second positioning groove 610. The inner wall of the second positioning groove 610 and the second base 620 together form a second clearance cavity 6b that matches the connecting rod 510. The inner wall of the second positioning groove 610 and the outer wall of the second blocking protrusion 630 together form a second contour cavity 7b that matches the barb 520. The second clearance cavity 6b and the second contour cavity 7b are in communication.

[0056] In order to better explain the above-mentioned housing 11 and to better understand the concept of the above-mentioned housing 11.

[0057] Please refer to it again. Figure 4 The outer shell 11 includes multiple connecting frames 400, each connecting frame 400 including two feet 410 and a heat insulation plate 420. The two feet 410 are spaced apart, and the heat insulation plate 420 is disposed between the two feet 410. The heat insulation plate 420 and the two feet 410 form an "I"-shaped support structure, and divide the space between the two feet 410 into two equal semi-closed cavities.

[0058] Multiple connecting frames 400 are connected end to end, and the semi-enclosed cavities on adjacent connecting frames 400 form a battery receiving cavity, each of which is used to accommodate a nickel-metal hydride battery 210.

[0059] To facilitate connecting multiple 400 connecting frames end to end, please refer to [link / reference]. Figure 5 The outer shell 11 also includes a plurality of buckles 500. Each buckle 500 includes a connecting rod 510 and barbs 520 disposed at both ends of the connecting rod 510. The connecting rod 510 and the two barbs 520 form a "C" shaped structure. The top and bottom of the foot 410 are provided with two first positioning grooves 411 arranged side by side. The first positioning grooves 411 on the top and bottom of two adjacent feet 410 together form two limiting cavities, and each limiting cavity is used to accommodate one buckle 500.

[0060] Each of the first positioning grooves 411 is provided with a first base 21 and a first blocking protrusion 22. The first blocking protrusion 22 is located on the side wall of the first base 21 and is positioned towards the inner wall of the first positioning groove 411. The inner wall of the first positioning groove 411 and the first base 21 together form a first clearance cavity 6a that matches the connecting rod 510. The inner wall of the first positioning groove 411 and the outer wall of the first blocking protrusion 22 together form a first contour cavity 7a that matches the barb 520. The first clearance cavity 6a is connected to the first contour cavity 7a. When the two first positioning grooves 411 are connected, the two first clearance cavities 6a in the two first positioning grooves 411 are connected, forming a cavity structure with a "C" shaped cross section, that is, the cross section of the limiting cavity is "C" shaped.

[0061] The outer shell 11 also includes two end caps 600, which are respectively connected to the connecting frames 400 at both ends of the outer shell 11. The end caps 600 have a "C" shaped structure and are used to close the semi-closed cavity.

[0062] Please see Figure 4 and Figure 7 Each of the end caps 600 has a second positioning groove 610 on its top and bottom. The second positioning groove 610 and the first positioning groove 411 together form a positioning cavity, which is used to accommodate one of the buckles 500.

[0063] Each of the second positioning grooves 610 is provided with a second base 620 and a second blocking protrusion 630. The second blocking protrusion 630 is located on the side wall of the second base 620 and faces the inner wall of the second positioning groove 610. The inner wall of the second positioning groove 610 and the second base 620 together form a second clearance cavity 6b that matches the connecting rod 510. The inner wall of the second positioning groove 610 and the outer wall of the second blocking protrusion 630 together form a second contour cavity 7b that matches the barb 520, and the second clearance cavity 6b is connected to the second contour cavity 7. When the two second positioning grooves 610 are connected, the two second clearance cavities 6b in the two second positioning grooves 610 are connected, forming a cavity structure with a "C" shaped cross section, that is, the cross section of the positioning cavity is "C".

[0064] The nickel-metal hydride battery module of the present invention, by setting up a bottom shell, a nickel-metal hydride battery pack and a connecting kit, allows for parallel connection of the nickel-metal hydride batteries when it is necessary to bring out the total positive and negative terminals of the nickel-metal hydride battery module. This is achieved by inserting each locking post on the busbar through the corresponding through hole and screwing each locking nut onto the end of each locking post, thus completing the parallel connection of the nickel-metal hydride batteries and bringing out the total positive and negative terminals of the nickel-metal hydride battery module. Parallel connection can be achieved without the need for external tools, making the operation simple and convenient. Furthermore, even if an operational error occurs, disassembly can be easily achieved by simply unscrewing each locking nut from the end of each locking post.

[0065] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A nickel-metal hydride battery module, characterized in that, include: Bottom shell; A nickel-metal hydride (NiMH) battery pack, comprising a plurality of NiMH batteries, each NiMH battery being disposed within the bottom shell, each NiMH battery having two electrode portions, and each electrode portion having a through hole; and The connecting kit includes two busbar assemblies, each of which includes a busbar and several locking nuts. Several locking pins are provided on the busbars, each locking pin has an external thread at its end, and each locking nut has an internal thread. Each locking pin passes through a corresponding through hole, and each locking nut is screwed into the end of each locking pin. The bottom shell includes multiple connecting frames, each connecting frame including two feet and a heat insulation plate. The two feet are spaced apart, and the heat insulation plate is disposed between the two feet, dividing the space between the two feet into two equal semi-enclosed cavities. Multiple connecting frames are connected end to end, and the semi-enclosed cavities on adjacent connecting frames form a battery receiving cavity, each of which is used to accommodate a nickel-metal hydride battery. The bottom shell also includes multiple buckles, each buckle including a connecting rod and barbs disposed at both ends of the connecting rod. The top and bottom of the foot are provided with two first positioning grooves arranged side by side. The first positioning grooves on the top and bottom of two adjacent feet together form two limiting cavities, and each limiting cavity is used to accommodate one buckle. Each of the first positioning slots is provided with a first base and a first blocking protrusion. The first blocking protrusion is located on the side wall of the first base and is positioned facing the inner wall of the first positioning slot. The inner wall of the first positioning slot and the first base together form a first clearance cavity that matches the connecting rod. The inner wall of the first positioning slot and the outer wall of the first blocking protrusion together form a first contour cavity that matches the barb. The first clearance cavity is connected to the first contour cavity. The bottom shell also includes two end caps, which are respectively connected to the connecting frames at both ends of the bottom shell. The end caps are C-shaped and are used to close the semi-closed cavity. Each of the end caps has a second positioning groove at its top and bottom. The second positioning groove and the first positioning groove together form a positioning cavity, which is used to accommodate one of the buckles. Each of the second positioning slots is provided with a second base and a second blocking protrusion. The second blocking protrusion is located on the side wall of the second base and is positioned facing the inner wall of the second positioning slot. The inner wall of the second positioning slot and the second base together form a second clearance cavity that matches the connecting rod. The inner wall of the second positioning slot and the outer wall of the second blocking protrusion together form a second contour cavity that matches the barb. The second clearance cavity and the second contour cavity are in communication.

2. The nickel-metal hydride battery module according to claim 1, characterized in that, The busbar is provided with several weight-reducing grooves, and there is a gap between each pair of adjacent weight-reducing grooves.

3. The nickel-metal hydride battery module according to claim 2, characterized in that, The busbar has 6 to 8 weight-reducing grooves.

4. The nickel-metal hydride battery module according to claim 1, characterized in that, The busbar is equipped with a handle.

5. The nickel-metal hydride battery module according to claim 4, characterized in that, The handle has a hanging hole.

6. The nickel-metal hydride battery module according to claim 5, characterized in that, The hanging hole is a round hole.

7. The nickel-metal hydride battery module according to claim 4, characterized in that, The busbar has a chamfered portion located away from the handle.

8. The nickel-metal hydride battery module according to claim 1, characterized in that, Both of the electrode portions are provided with a bent portion.

Images