Waterproof wheelchair battery with electric quantity display function

Abstract

The utility model discloses a waterproof wheelchair battery with electric quantity display, which comprises a battery shell, a battery pack, a circuit board, a positive output terminal and a negative output terminal, the battery pack, the circuit board, the positive output terminal and the negative output terminal are arranged in the battery shell, the circuit board is electrically connected with the battery pack, the positive output terminal and the negative output terminal, and an electric quantity display module is arranged on the battery shell. The electric quantity display module is electrically connected with the circuit board; two ejection blocks are integrally formed on one side of the battery shell, grooves are formed in the ejection blocks, and the positive output terminal and the negative output terminal are fixedly located in the grooves of the two ejection blocks respectively; a limiting groove is formed in the peripheral side of the ejection block; and a first guide surface is arranged at the end part of the ejection block. Compared with the prior art, the battery has the advantages that the structure is simple, and the battery is provided with the electric quantity display module, so that the internal electric quantity can be prompted, and the condition of power failure when a user goes out is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of power supply batteries, and particularly relates to a waterproof wheelchair battery with power display. Background Technique

[0002] A wheelchair is a chair equipped with wheels to help replace walking. It is an important mobile tool for the wounded, sick, and disabled for home rehabilitation, transportation, medical treatment, and outdoor activities. Wheelchairs not only meet the transportation needs of the physically disabled and the mobility-impaired, but more importantly, they facilitate the movement and care of patients by their families, enabling patients to exercise their bodies and participate in social activities with the help of wheelchairs. With the progress of technology, in order to provide a more convenient and fast life as much as possible, electric wheelchairs have emerged. The existing batteries of wheelchair vehicles do not have a power battery function, and it often happens that when the user travels halfway, the vehicle runs out of power and cannot move electrically. Therefore, the existing CN 214013013 U utility model patent "Waterproof battery pack structure with power display" has its wiring terminals exposed, and the batteries of existing wheelchairs are installed externally, which is prone to short circuits in rainy days and other weather conditions. Therefore, it is very important to obtain a waterproof wheelchair battery with power display that overcomes the above defects. Content of the Utility Model

[0003] To solve the above at least one technical problem, the utility model provides a waterproof wheelchair battery with power display, which includes a battery housing and a battery pack, a circuit board, a positive output terminal, and a negative output terminal disposed in the battery housing. The circuit board is electrically connected to the battery pack, the positive output terminal, and the negative output terminal. A power display module is configured on the battery housing, and the power display module is electrically connected to the circuit board.

[0004] Two ejector blocks are integrally formed on one side of the battery housing. Grooves are formed on the ejector blocks, and the positive output terminal and the negative output terminal are respectively fixed at the grooves of the two ejector blocks. A limiting groove is provided on the periphery of the ejector blocks. A first guiding surface is provided at the end of the ejector blocks.

[0005] Through the above technical solution, the positive output terminal and the negative output terminal are respectively fixed at the grooves of the two ejector blocks, which can protect the positive output terminal and the negative output terminal, and is provided with a power display module, where the power display module can be several indicator lights, or a display screen, etc.

[0006] As a preferred method above, an installation groove matching with the ejector block is configured at the battery installation position of the electric wheelchair vehicle. A spring-loaded pin connector is fixed in the installation groove, and the spring-loaded pin connector is connected to the circuit board of the electric wheelchair vehicle. The spring-loaded pin connector is electrically conductive with the positive output terminal and the negative output terminal to realize the power supply of the battery pack to the electrical equipment of the electric wheelchair vehicle.

[0007] Through the above technical solution, the installation groove and the spring ejector pin are located in the groove when connected, which can ensure the stability after the two are wired. Moreover, the installation position is in the groove, and the waterproof function can be realized.

[0008] As a preferred way above, an elastic waterproof sheet is inserted into the side wall of the installation groove. Each elastic waterproof sheet is triangular, and the side walls of adjacent elastic waterproof sheets are in contact and fit in the closed state and separated in the open state.

[0009] Through the above technical solution, when the elastic waterproof sheet is not inserted into the battery case, it can seal the installation groove to play a role in waterproofing and dustproofing. After being inserted into the battery case, the ejector block deforms the elastic waterproof sheet to fit on the ejector block, which can increase the stability of the connection between the two.

[0010] As a preferred way above, a limiting protrusion is provided on the elastic waterproof sheet to cooperate with the limiting groove.

[0011] Through the above technical solution, the limiting protrusion cooperates with and presses against the limiting groove to realize the limitation of the battery.

[0012] As a preferred way above, a second guiding surface is provided on the battery case on one side of the ejector block. The second guiding surface is obliquely opened from the outside to the inside so that the length of the outer side wall is greater than that of the inner side wall.

[0013] Through the above technical solution, in the vertical installation method, since the length of the outer side wall is greater than that of the inner side wall, water can be prevented from seeping into the installation groove.

[0014] As a preferred way above, a cover plate is hinged to the battery installation position, and the end of the cover plate is snap-connected to the other end of the battery installation position to stably install the battery in the installation position. Or both ends of the cover plate are snap-connected to the battery installation position.

[0015] As a preferred way above, the battery case is inserted vertically downward into the installation position, or the battery case is inserted laterally into the installation position; when the battery case is inserted laterally into the installation position, the ejector block is fixed on the bottom side of the battery case in the length direction.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: The structure of the present utility model is simple, and the battery is provided with a power display module, which can prompt the internal power and prevent the situation of running out of power when going out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of one embodiment of the present utility model;

[0018] Figure 2 It is a schematic diagram of one embodiment of the present utility model in use;

[0019] Figure 3 Schematic diagram of the second embodiment of the present utility model in use;

[0020] Figure 4 is Figure 1 Cross-sectional schematic diagram at A-A

[0021] Reference numerals:

[0022] 1 Battery housing; 2 Battery pack; 3 Circuit board; 4 Positive output terminal; 5 Negative output terminal; 6 Battery level display module;

[0023] 7 Groove; 8 Limiting groove; 9 First guiding surface;

[0024] 10 Battery installation position; 11 Installation groove; 12 Spring pin connector; 14 Elastic waterproof sheet; 15 Second guiding surface; 16 Cover plate; 17 Ejector block; Detailed implementation manners

[0025] The following is a detailed description of the present utility model with respect to some specific embodiments thereof in order to enable those skilled in the art to better understand the present utility model and thus more clearly define the scope of protection required by the present utility model. It should be noted that the following are only some specific implementation manners of the concept of the present utility model and only a part of the embodiments of the present utility model. The specific and direct descriptions of the relevant structures are only for the convenience of understanding the present utility model, and the specific features do not of course and directly limit the scope of implementation of the present utility model.

[0026] Referring to the attached drawings, the present utility model adopts the following technical solutions. A waterproof wheelchair battery with battery level display includes a battery housing 1 and a battery pack 2, a circuit board 3, a positive output terminal 4, and a negative output terminal 5 disposed within the battery housing 1. The circuit board 3 is electrically connected to the battery pack 2, the positive output terminal 4, and the negative output terminal 5. A battery level display module 6 is disposed on the battery housing 1, and the battery level display module 6 is electrically connected to the circuit board 3;

[0027] Two ejector blocks 17 are integrally formed on one side of the battery housing 1. A groove 7 is formed on the ejector block 17, and the positive output terminal 4 and the negative output terminal 5 are respectively fixed at the grooves 7 of the two ejector blocks 17. A limiting groove 8 is provided on the periphery of the ejector block 17. A first guiding surface 9 is provided at the end of the ejector block 17.

[0028] Through the above technical solutions, the positive output terminal 4 and the negative output terminal 5 are respectively fixed at the grooves 7 of the two ejector blocks 17, which can protect the positive output terminal 4 and the negative output terminal 5, and is provided with a battery level display module 6, where the battery level display module 6 can be a plurality of indicator lights, or a display screen, etc.

[0029] As a preferred mode among the above, the battery installation position 10 of the electric wheelchair is configured with an installation groove 11 that cooperates with the ejector block 17. A spring-loaded pin connector 12 is fixed in the installation groove 11, and the spring-loaded pin connector 12 is connected to the circuit board of the electric wheelchair; the spring-loaded pin connector 12 is electrically connected to the positive output terminal 4 and the negative output terminal 5 to enable the battery pack 2 to supply power to the electrical equipment of the electric wheelchair.

[0030] Through the above technical solution, the installation groove 11 and the spring-loaded pins are located within the groove 7 during connection, which can ensure the stability after the two are wired. Moreover, since the installation position is within the groove 7, a waterproof function can be achieved.

[0031] As a preferred mode among the above, elastic waterproof sheets 14 are inserted into the side walls of the installation groove 11. Each elastic waterproof sheet 14 is triangular, and the side walls of adjacent elastic waterproof sheets 14 are in contact and fit in the closed state and are separated in the open state.

[0032] Through the above technical solution, when the battery housing 1 is not inserted, the elastic waterproof sheets 14 can seal the installation groove 11 to play a role in waterproofing and dustproofing. After the battery housing 1 is inserted, the ejector block 17 deforms the elastic waterproof sheets 14, which fit on the ejector block 17, increasing the stability of the connection between the two.

[0033] As a preferred mode among the above, the elastic waterproof sheets 14 are provided with limit protrusions that cooperate with the limit grooves 8.

[0034] Through the above technical solution, the limit protrusions cooperate with and press against the limit grooves 8 to achieve the positioning of the battery.

[0035] As a preferred mode among the above, a second guiding surface 15 is formed on the battery housing 1 on one side of the ejector block 17. The second guiding surface 15 is obliquely formed from the outside to the inside, so that the length of the outer side wall is greater than that of the inner side wall.

[0036] Through the above technical solution, in the vertical installation mode, since the length of the outer side wall is greater than that of the inner side wall, water infiltration into the installation groove 11 can be prevented.

[0037] As a preferred mode among the above, a cover plate 16 is hinged to the battery installation position 10, and the end of the cover plate 16 is snap-connected to the other end of the battery installation position 10 to stably install the battery within the installation position.

[0038] As a preferred mode among the above, the battery housing 1 is inserted vertically downward into the installation position, or the battery housing 1 is inserted laterally into the installation position; when the battery housing 1 is inserted laterally into the installation position, the ejector block 17 is fixed to the bottom side of the battery housing 1 in the length direction.

[0039] The above cover plate 16 is made of a transparent material.

[0040] Compared with the prior art, the advantages of the present utility model are as follows: The structure of the present utility model is simple. The battery is equipped with a power display module 6, which can prompt the internal power, preventing the situation of running out of power when going out.

[0041] In the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A waterproof wheelchair battery with power display, comprising a battery housing (1), a battery pack (2), a circuit board (3), a positive output terminal (4), and a negative output terminal (5) disposed within the battery housing (1). The circuit board (3) is electrically connected to the battery pack (2), the positive output terminal (4), and the negative output terminal (5). A power display module (6) is configured on the battery housing (1), and the power display module (6) is electrically connected to the circuit board (3). It is characterized in that: On one side of the battery housing (1), two ejector blocks (17) are integrally formed. Grooves (7) are formed on the ejector blocks (17). The positive output terminal (4) and the negative output terminal (5) are respectively fixed at the grooves (7) of the two ejector blocks (17). A limiting groove (8) is provided on the periphery of the ejector block (17). A first guiding surface (9) is provided at the end of the ejector block (17).

2. The waterproof wheelchair battery with power display according to claim 1, wherein: The battery installation position (10) of the electric wheelchair is configured with an installation groove (11) that cooperates with the ejector block (17). A spring-loaded pogo pin connector (12) is fixed in the installation groove (11), and the spring-loaded pogo pin connector (12) is connected to the circuit board of the electric wheelchair. The spring-loaded pogo pin connector (12) is electrically connected to the positive output terminal (4) and the negative output terminal (5) to supply power to the electrical equipment of the electric wheelchair by the battery pack (2).

3. The waterproof wheelchair battery with power display according to claim 2, wherein: An elastic waterproof sheet (14) is inserted into the side wall of the installation groove (11). Each elastic waterproof sheet (14) is triangular, and the side walls of adjacent elastic waterproof sheets (14) are in contact and fit in the closed state and separated in the open state.

4. The waterproof wheelchair battery with power display according to claim 3, characterized in that: The elastic waterproof sheet (14) is provided with a limiting protrusion that cooperates with the limiting groove (8).

5. The waterproof wheelchair battery with charge display according to claim 1, characterized in that: A second guiding surface (15) is formed on the battery housing (1) on one side of the ejector block (17). The second guiding surface (15) is obliquely formed from the outside to the inside, so that the length of the outer side wall is greater than the length of the inner side wall.

6. The waterproof wheelchair battery with charge display according to claim 2, characterized in that: A cover plate (16) is hinged to the battery installation position (10). The end of the cover plate (16) is snap-connected to the other end of the battery installation position (10) to stably install the battery in the installation position.

7. The waterproof wheelchair battery with power display according to claim 2, wherein: The battery housing (1) is inserted vertically downward into the installation position, or the battery housing (1) is inserted laterally into the installation position. When the battery housing (1) is inserted laterally into the installation position, the ejector block (17) is fixed at the bottom side of the battery housing (1) in the length direction.

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