Hall sensing structure of battery pack

Abstract

The utility model discloses a battery pack Hall sensing structure, which comprises a shell and an upper cover, a battery cell bracket is arranged in the shell, a plurality of battery cells are arranged on the battery cell bracket, and a spring is arranged at the top of the battery cell bracket; a button is installed on the upper cover and located above the spring, and a magnet is installed at the bottom end of the button. A circuit board is installed below the upper cover, a plurality of electric quantity display lamp beads are installed on the circuit board, and a Hall magnetic sensor matched with the magnet is installed on the circuit board. According to the utility model, when the button is pressed downwards by a certain distance, the magnet is close to the Hall magnetic sensor, and the Hall sensor starts to work to trigger a circuit on the circuit board, so that the electric quantity display lamp is in a working state to prompt a user to see the electric quantity of the battery pack.

Description

Technical Field

[0001] This utility model relates to the technical field of battery packs, specifically a Hall effect sensing structure for battery packs. Background Technology

[0002] With the development of battery pack technology, battery pack power display technology has emerged. This technology displays the approximate remaining power status of the battery pack in real time, allowing the operator to choose to charge it promptly or continue using it based on the battery pack's remaining power.

[0003] A battery pack with more convenient power display, disclosed in publication number CN202321180277.8, includes a battery pack body and an upper shell. The battery pack body is provided with several indicator lights. The upper shell is connected to the top of the battery pack body and includes an operating component. A display switch is provided on the side of the battery pack body facing the upper shell. A mounting platform is provided on the top surface of the upper shell. The mounting platform has an operating port adapted to the operating component corresponding to the position of the display switch. When the display switch is in the pressed state, the height of the top of the operating component in contact with the display switch is lower than that of the mounting platform. When the display switch is in the pop-up state, the height of the top of the operating component in contact with the display switch is higher than that of the mounting platform.

[0004] In the existing technology, the power level is displayed by a display switch. To further improve this technology, we propose a Hall effect sensing structure for a battery pack. Utility Model Content

[0005] The purpose of this invention is to provide a Hall effect sensing structure for a battery pack to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a Hall effect sensing structure for a battery pack, comprising a housing and a top cover, wherein a cell support is installed inside the housing, a plurality of cells are installed in the cell support, and a spring is installed on the top of the cell support; a button is installed on the top cover above the spring, and a magnet is installed at the bottom of the button; a circuit board is installed below the top cover, the circuit board is equipped with a plurality of power indicator LEDs, and a Hall effect magnetic sensor that cooperates with the magnet is also installed on the circuit board.

[0007] Preferably, a wear-resistant shell is installed at the bottom of the housing, and the wear-resistant shell is made of plastic.

[0008] Preferably, the top of the battery cell bracket is provided with a first guide protrusion that cooperates with the spring, and the button is provided with a second guide protrusion that cooperates with the spring.

[0009] Preferably, the first guide protrusion is a circular ring structure, and the second guide protrusion is an inverted conical structure.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When the button is in the initial state, the Hall magnetic sensor and the magnet fixed on the button are at a certain distance. At this time, the Hall is in the off state and does not activate the power indicator light on the circuit board. When the button is pressed down to a certain distance, the magnet approaches the Hall magnetic sensor, the Hall sensor is activated, triggering the circuit on the circuit board to activate the power indicator light, so as to remind the user how much power the battery pack has left. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the button of this utility model when it is pressed down;

[0013] Figure 2 This is a utility model Figure 1 Top view;

[0014] Figure 3 This is a utility model Figure 2 Schematic diagram of AA;

[0015] Figure 4 This is a structural diagram of the button in its initial state according to this utility model;

[0016] Figure 5 This is a utility model Figure 4 Top view;

[0017] Figure 6 This is a utility model Figure 5 Sectional view of BB;

[0018] Figure 7 This is a structural diagram of the present invention when the top cover and button are removed;

[0019] Figure 8 This is a structural schematic diagram of the battery cell bracket, button, and spring of this utility model;

[0020] Figure 9 This is a schematic diagram of the button structure of this utility model.

[0021] In the diagram: 1. Battery cell; 2. Housing; 3. Wear-resistant housing; 4. Battery cell support; 5. Button; 6. Spring; 7. Hall effect magnetic sensor; 8. Magnet; 9. Power indicator LED; 10. Circuit board; 11. Top cover; 41. First guide protrusion; 51. Second guide protrusion. Detailed Implementation

[0022] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0023] Please see Figure 1-9 In this embodiment of the utility model, a battery pack Hall sensing structure includes a housing 2 and a top cover 11. A wear-resistant shell 3 is installed at the bottom of the housing 2. The wear-resistant shell 3 is made of plastic. A cell support 4 is installed inside the housing 2. A plurality of cells 1 are installed in the cell support 4. A spring 6 is installed at the top of the cell support 4.

[0024] A button 5 is mounted on the upper cover 11 above the spring 6, and a magnet 8 is mounted on the bottom of the button 5. A circuit board 10 is mounted below the upper cover 11. The circuit board 10 has multiple power indicator LEDs 9 and a Hall magnetic sensor 7 that cooperates with the magnet 8 (a reed switch can also be used, both of which can trigger the LED display on the circuit board when the magnet is close to them). When the button is in the initial state, the Hall magnetic sensor and the magnet fixed on the button are at a certain distance, and the Hall is in the off state, so it does not activate the power indicator LED on the circuit board. When the button is pressed down to a certain distance, the magnet approaches the Hall magnetic sensor, the Hall sensor is activated, and the circuit on the circuit board is triggered, so that the power indicator LED is activated to indicate to the user how much power the battery pack has.

[0025] The top of the battery cell bracket 4 is provided with a first guide protrusion 41 that cooperates with the spring 6, and the button 5 is provided with a second guide protrusion 51 that cooperates with the spring 6. The first guide protrusion 41 is a circular structure, and the second guide protrusion 51 is an inverted conical structure. The guide protrusions play a certain guiding role for the spring.

[0026] The working principle of this utility model is as follows: when the button is in the initial state, the Hall magnetic sensor and the magnet fixed on the button are at a certain distance. At this time, the Hall is in the off state and does not activate the power indicator light on the circuit board.

[0027] When the button is pressed down to a certain distance, the magnet approaches the Hall effect sensor, which activates the circuitry on the circuit board, turning on the power indicator light to show the user how much power is left in the battery pack.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A Hall effect sensing structure for a battery pack, comprising a housing (2) and a top cover (11), characterized in that: A cell support (4) is installed inside the housing (2), and a plurality of cells (1) are installed on the cell support (4). A spring (6) is installed on the top of the cell support (4). A button (5) is installed on the top cover (11) above the spring (6), and a magnet (8) is installed at the bottom of the button (5); a circuit board (10) is installed below the top cover (11), and multiple power display LEDs (9) are installed on the circuit board (10), and a Hall magnetic sensor (7) that cooperates with the magnet (8) is installed on the circuit board (10).

2. The Hall effect sensing structure for a battery pack according to claim 1, characterized in that: The bottom of the housing (2) is fitted with a wear-resistant shell (3), which is made of plastic.

3. The Hall effect sensing structure for a battery pack according to claim 1, characterized in that: The top of the battery cell bracket (4) is provided with a first guide protrusion (41) that cooperates with the spring (6), and the button (5) is provided with a second guide protrusion (51) that cooperates with the spring (6).

4. The Hall effect sensing structure for a battery pack according to claim 3, characterized in that: The first guide protrusion (41) is a circular ring structure, and the second guide protrusion (51) is an inverted cone structure.

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