Battery pack capable of being quickly replaced

Abstract

The utility model discloses a battery pack capable of being quickly replaced, which belongs to the technical field of battery packs and comprises a device main body, a detachable mechanism and a connecting assembly, the left end of the device body is connected with the detachable mechanism, and the right end of the device body is connected with the connecting assembly. The detachable mechanism comprises a locking assembly for locking the fixing assembly and the fixing assembly for fixing the battery cell; the locking assembly and the fixing assembly are both connected with the device body. By means of the mode, through the convenient replacement operation of the battery and the modular design of the battery, the user experience is remarkably enhanced, meanwhile, the service life of the electric wheelchair is prolonged, and the electric wheelchair has remarkable innovativeness and practicability.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to a battery pack that can be quickly replaced. Background Technology

[0002] As a crucial tool for assisting people with mobility impairments, the performance of electric wheelchairs directly impacts users' quality of life. Among the many performance indicators of electric wheelchairs, the performance of the battery pack is paramount. Traditional electric wheelchair battery packs have revealed serious problems in practical use: battery replacement is extremely cumbersome, leading to a poor user experience. Furthermore, the integrated battery pack design hinders timely repair and replacement of faulty components, affecting the lifespan of the electric wheelchair.

[0003] For example, announcement number CN209864361U discloses a battery pack for electric wheelchairs, including a battery mounting bracket fixed to the lower part of the chair frame, a battery mounting box mounted at an angle on the battery mounting bracket, the higher end of the battery mounting box located at the front of the chair frame, an opening at the top of the battery mounting box forming a battery placement inlet, a cover hinged to the battery placement inlet, a commode bracket on the top of the cover, battery limiting screws mounted movably on both sides of the inner cavity of the battery mounting box via bearings, one end of the battery limiting screw passing through the battery mounting box and connected to a locking handwheel, a limiting slider movably engaging on each battery limiting screw, a battery locking rod connecting the two limiting sliders, and a lithium battery placed inside the battery mounting box and locked by the battery locking rod.

[0004] However, its technology has the following problems: battery pack replacement is cumbersome and time-consuming, causing inconvenience to users.

[0005] Based on this, the present invention designs a battery pack that can be quickly replaced to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a battery pack that can be quickly replaced.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A quick-replaceable battery pack includes a device body, a detachable mechanism, and a connection assembly;

[0009] The left end of the main body of the device is connected to the detachable mechanism, and the right end of the main body of the device is connected to the connecting component.

[0010] The detachable mechanism includes a fixing component for securing the battery cell and a locking component for securing the fixing component; both the locking component and the fixing component are connected to the main body of the device.

[0011] Furthermore, the main body of the device includes an outer shell, a fixed cover, and a removable cover. The left end of the outer shell is detachably connected to the removable cover, and the right end of the outer shell is fixedly connected to the fixed cover.

[0012] Furthermore, the detachable cover is connected to the locking assembly, and the interior of the outer casing is connected to the fixing assembly.

[0013] Furthermore, the locking assembly includes a latch, a hook, a torsion spring, a pin, a pressing block, and a limiting block. The pin is fixedly installed on the upper end of the disassembly cover. The torsion spring is sleeved on the outer wall of the pin. One end of the torsion spring is fixedly connected to the upper end of the disassembly cover, and the other end of the torsion spring is fixedly connected to the hook. The latch is fixedly installed on the top of the outer shell and locked to the hook. The upper end of the hook is fixedly connected to the pressing block. The limiting block is fixedly installed on the upper end of the disassembly cover and contacts the pressing block.

[0014] Furthermore, the fixing component includes a sliding base, a battery cell module, and a limiting clamping component. The sliding base is slidably connected to the inner bottom of the outer shell. Multiple battery cell modules are arranged at equal intervals in the sliding base. Multiple sets of equally spaced and uniformly arranged limiting clamping components are symmetrically connected to the inner walls of the front and rear sides of the sliding base. The limiting clamping components are connected to the battery cell modules. The multiple battery cell modules are connected in parallel. Each battery cell module includes multiple battery cells connected in series.

[0015] Furthermore, the battery cell module is electrically connected to the connection assembly.

[0016] Furthermore, the connecting component is a crown spring socket, which is fixedly installed inside the fixed cover. The crown spring socket is plugged into the crown spring pin terminal of the electric wheelchair and connected to the battery module.

[0017] Furthermore, there are two connecting components, both located inside the fixed cover.

[0018] Compared with the prior art, the advantages of this utility model are as follows: the utility model significantly enhances the user experience through convenient battery replacement and modular battery design, while extending the service life of the electric wheelchair, demonstrating significant innovation and practicality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a quick-replaceable battery pack according to the present invention.

[0021] Figure 2 This is a front view of a quick-replaceable battery pack according to the present invention.

[0022] Figure 3 This is a schematic diagram of a partially cut-away battery pack according to the present invention.

[0023] Figure 4 This is a schematic diagram showing the connection between the disassembly cover and the locking assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing component of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the sliding base of this utility model;

[0026] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 8 for Figure 3 Enlarged view of point B in the middle.

[0028] The labels in the diagram represent:

[0029] 1. Main body of the device; 11. Outer shell; 12. Fixed cover; 13. Removable cover; 2. Detachable mechanism; 21. Locking assembly; 211. Lock; 212. Lock hook; 213. Torsion spring; 214. Pin; 215. Pressing block; 216. Limiting block; 22. Fixing assembly; 221. Sliding base; 222. Battery cell module; 223. First spring; 224. Second spring; 225. Positioning block; 3. Connecting assembly; 31. Spring leaf; 32. Sleeve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 A quick-replaceable battery pack includes a device body 1, a detachable mechanism 2, and a connecting assembly 3;

[0033] The left end of the main body 1 of the device is connected to the detachable mechanism 2, and the right end of the main body 1 of the device is connected to the connecting component 3.

[0034] The detachable mechanism 2 includes a fixing component 22 for fixing the battery cell and a locking component 21 for fixing the fixing component 22; both the locking component 21 and the fixing component 22 are connected to the main body 1 of the device.

[0035] The main body 1 of the device is installed inside the battery compartment of the electric wheelchair.

[0036] This invention significantly enhances the user experience and extends the lifespan of electric wheelchairs through convenient battery replacement and modular battery design, demonstrating remarkable innovation and practicality.

[0037] This invention enables rapid connection and locking of the battery pack, as well as stable power transmission, which greatly shortens the battery pack replacement time and improves the efficiency of electric wheelchair use.

[0038] The main body 1 of the device includes an outer shell 11, a fixed cover 12 and a detachable cover 13. The left end of the outer shell 11 is detachably connected to the detachable cover 13, and the right end of the outer shell 11 is fixedly connected to the fixed cover 12.

[0039] The disassembly cover 13 is connected to the locking component 21, and the interior of the outer shell 11 is connected to the fixing component 22.

[0040] The locking assembly 21 includes a latch 211, a hook 212, a torsion spring 213, a pin 214, a pressing block 215, and a limiting block 216. The pin 214 is fixedly installed on the upper end of the disassembly cover 13. The torsion spring 213 is sleeved on the outer wall of the pin 214. One end of the torsion spring 213 is fixedly connected to the upper end of the disassembly cover 13, and the other end of the torsion spring 213 is fixedly connected to the hook 212. The latch 211 is fixedly installed on the top of the outer shell 11 and is locked to the hook 212. The upper end of the hook 212 is fixedly connected to the pressing block 215. The limiting block 216 is fixedly installed on the upper end of the disassembly cover 13. The pressing block 215 is in contact with the limiting block 216, and the limiting block 216 is used to limit the pressing block 215.

[0041] The fixing component 22 includes a sliding base 221, a battery cell module 222, and a limiting clamping component. The sliding base 221 is slidably connected to the inner bottom of the outer shell 11. Multiple battery cell modules 222 are arranged at equal intervals in the sliding base 221. Multiple sets of equally spaced and uniformly arranged limiting clamping components are symmetrically connected to the inner walls of the front and rear sides of the sliding base 221. The limiting clamping components are connected to the battery cell modules 222. The multiple battery cell modules 222 are connected in parallel. Each battery cell module 222 includes multiple battery cells connected in series.

[0042] The limiting clamping assembly includes a first spring 223, a second spring 224, and a positioning block 225. One end of the first spring 223 and the second spring 224 are fixedly connected to the interior of the sliding base 221, and the other end of the first spring 223 and the second spring 224 are fixedly connected to the planar end of the positioning block 225. The positioning block 225 is in contact with the battery cell module 222.

[0043] The battery cell module 222 is electrically connected to the connecting component 3.

[0044] When using this invention, if it is necessary to remove the battery cell module 222, press the pressing block 215 by hand. The pressing block 215 drives the locking hook 212 to rotate around the pin 214, causing the locking hook 212 to disengage from the latch 211, thereby unlocking the disassembly cover 13 from the outer shell 11. Then, remove the disassembly cover 13, pull the sliding base 221 out of the outer shell 11, remove the replacement battery cell module 222, and place the new battery cell module 222 into the sliding base 221. During the placement process... The battery cell module 222 contacts the arc end of the positioning block 225, and the battery cell module 222 presses the positioning blocks 225 on the front and rear sides; the positioning blocks 225 move under the action of the first spring 223 and the second spring 224, so that the bottom surface of the battery cell module 222 contacts the bottom of the sliding base 221. Then, the positioning blocks 225 fix the battery cell module 222 under the force of the first spring 223 and the second spring 224, and make multiple battery cell modules 222 all on the same center line.

[0045] After the battery cell module 222 is installed, push the sliding base 221 back into the housing 11, install the disassembly cover 13 together with the left side of the housing 11, lock the hook 212 and the latch 211 again, connect the battery cell module 222 with the connecting component 3, and complete the installation.

[0046] The connecting component 3 is a crown spring socket, which is fixedly installed inside the fixed cover 12. The crown spring socket is plugged into the crown spring pin terminal of the electric wheelchair and connected to the battery module 222.

[0047] The connecting components 3 are provided in two parts, both of which are located inside the fixed cover 12.

[0048] The crown spring socket includes a spring 31 and a sleeve 32. The sleeve 32 is fixedly connected to the fixed cover 12. The spring 31 is fixedly installed inside the sleeve 32. When the crown spring pin terminal is inserted, the spring 31 tightly clamps the crown spring pin terminal with its elasticity. When the current is conducted from the lead wire of the battery module 222 to the sleeve 32, the current can also smoothly reach the spring 31 due to the connection between the spring 31 and the sleeve 32. When the crown spring pin terminal is inserted into the crown spring socket, the spring 31 will tightly clamp the crown spring pin terminal with its own elasticity, realizing the electrical connection with the external device (electric wheelchair), thereby transmitting the power of the battery module 222 to the electric wheelchair and ensuring that the battery pack provides stable power to the electric wheelchair.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick change battery pack characterized by, The device body (1), the detachable mechanism (2) and the connecting assembly (3) are connected. The left end of the device body (1) is connected with the detachable mechanism (2), and the right end of the device body (1) is connected with the connecting assembly (3). The detachable mechanism (2) includes a fixing assembly (22) for fixing the battery cell and a locking assembly (21) for fixing the fixing assembly (22); the locking assembly (21) and the fixing assembly (22) are connected with the device body (1). The device body (1) includes an outer shell (11), a fixed cover (12) and a disassembly cover (13), the left end of the outer shell (11) is detachably connected with the disassembly cover (13), and the right end of the outer shell (11) is fixedly connected with the fixed cover (12). The disassembly cover (13) is connected with the locking assembly (21), and the inside of the outer shell (11) is connected with the fixing assembly (22). The locking assembly (21) includes a lock (211), a hook (212), a torsional spring (213), a pin column (214), a pressing block (215) and a limiting block (216), the pin column (214) is fixedly installed on the upper end of the disassembly cover (13), the torsional spring (213) is sleeved on the outer wall of the pin column (214), one end of the torsional spring (213) is fixedly connected with the upper end of the disassembly cover (13), the other end of the torsional spring (213) is fixedly connected with the hook (212), the lock (211) is fixedly installed on the top of the outer shell (11), the lock (211) is lockingly connected with the hook (212), the upper end of the hook (212) is fixedly connected with the pressing block (215), and the limiting block (216) is fixedly installed on the upper end of the disassembly cover (13). The pressing block (215) is in contact connection with the limiting block (216); The fixing assembly (22) includes a sliding base (221), a battery cell module (222) and a limiting clamping assembly, the sliding base (221) is in sliding connection with the inner bottom of the outer shell (11), the battery cell module (222) is provided with a plurality of battery cells arranged at equal intervals in the sliding base (221), and a plurality of limiting clamping assemblies arranged at equal intervals and uniformly are symmetrically connected to the inner walls of the front and rear sides of the sliding base (221). The limiting clamping assembly is connected with the battery cell module (222), and the plurality of battery cell modules (222) are connected in parallel, and each battery cell module (222) includes a plurality of battery cells connected in series. The battery cell module (222) is electrically connected with the connecting assembly (3). The connecting assembly (3) is a crown spring socket, the crown spring socket is fixedly installed in the inside of the fixed cover (12), the crown spring socket is inserted with the crown spring pin terminal of the electric wheelchair, and the crown spring socket is connected with the battery cell module (222). The connecting assembly (3) is provided with two and is located in the inside of the fixed cover (12).

Images