Circuit structure of a battery pack and battery pack

Abstract

The utility model belongs to the technical field of battery pack, provide the circuit structure and battery pack of battery pack, this circuit structure, include: at least one touch circuit, with the control circuit that touch circuit electricity is connected, is arranged with control chip in control circuit, pilot lamp circuit, contain at least one emitting diode, emitting diode and control chip electricity is connected, control chip is configured as receiving the electric signal that touch circuit sent and controls emitting diode to emit corresponding color light beam to show the battery pack electric quantity. The utility model's advantage lies in the information prompt of electric quantity of user conveniently, prevents the user from realizing that the battery body electric quantity is exhausted when the electric quantity is exhausted, and the user can know how much electric quantity at any time.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack technology, and relates to a circuit structure of a battery pack and the battery pack itself. Background Technology

[0002] A battery pack can provide power to external devices from the battery itself. However, current technology does not display the battery level of the battery itself within the pack, so the amount of power in the battery itself is unknown to the user. For example, sometimes a user may connect a device to the battery pack to charge it, only to find that the device does not respond, and then realize that the battery itself is depleted.

[0003] In conclusion, existing battery packs cannot conveniently display the battery level, thus leaving considerable room for improvement. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a circuit structure for a battery pack and a battery pack itself.

[0005] The objective of this utility model can be achieved through the following technical solution: a circuit structure for a battery pack, comprising:

[0006] At least one touch circuit;

[0007] A control circuit electrically connected to the touch circuit, wherein a control chip is arranged in the control circuit;

[0008] An indicator circuit, which includes at least one light-emitting diode (LED) electrically connected to a control chip;

[0009] The control chip is configured to receive electrical signals from the touch circuit and control the light-emitting diodes to emit beams of light of corresponding colors to display the battery pack power.

[0010] In the circuit structure of the battery pack described above, the indicator light circuit includes a three-color light, which is formed by parallel connection of LEDs corresponding to three colors. The positive terminal of the LED is connected to the control chip through a first resistor connected in series.

[0011] The circuit structure of the battery pack described above also includes a temperature detection circuit, which includes a second resistor. One end of the second resistor is electrically connected to the temperature sensor and the electrical contact, and the other end is grounded.

[0012] Electrical contacts are used to form an electrical connection with the control circuitry of a power tool when the battery pack is used in combination with any power tool.

[0013] This utility model also proposes a battery pack, including the circuit structure of the battery pack described above, and further including:

[0014] The housing has a receiving cavity and an indicator port, the indicator port being connected to the receiving cavity;

[0015] A circuit board assembly located within a receiving cavity;

[0016] An indicator located at the indicator port, with an indicator light circuit on the indicator, which is electrically connected to the circuit board assembly;

[0017] A first touch button is disposed on the housing and located at one end of the housing. The first touch button is provided with a first touch circuit, which is electrically connected to the circuit board assembly.

[0018] In the aforementioned battery pack, the indicator port is located on the circumferential sidewall of the housing.

[0019] In the aforementioned battery pack, the circuit board assembly includes a first circuit board located on the housing near the first touch button. The first circuit board is provided with a control circuit, and the indicator is electrically connected to the control circuit.

[0020] In the aforementioned battery pack, the circuit board assembly also includes a second circuit board, which is electrically connected to the first circuit board, and the indicator light circuit is disposed on the second circuit board.

[0021] In the aforementioned battery pack, the second circuit board is a flexible circuit board.

[0022] In the aforementioned battery pack, the shape of the second circuit board is adapted to the inner wall of the housing.

[0023] The battery pack described above also includes a second touch button, which is disposed on the housing and located at the other end of the housing. The second touch button is provided with a second touch circuit, which is electrically connected to the circuit board assembly. The second touch button is used to control whether the indicator works or not through the circuit board assembly.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: Touching the first touch button can control the indicator to work or not through the circuit board assembly, conveniently providing the user with information on the battery level, preventing the user from only realizing that the battery is depleted when it is already empty, and allowing the user to know the battery level at any time; The second touch button is located on the housing and at the other end of the housing, and is electrically connected to the circuit board assembly. The second touch button can control the indicator to work or not through the circuit board assembly, so the user can achieve the same effect regardless of which end of the battery pack the touch button touches, making it more convenient; The first touch button is located at one end of the housing, and the first circuit board is close to the first touch button. The first touch button can control the indicator to work or not through the first circuit board, so there is no need to connect the first touch button and the first circuit board through a long wire, reducing the possibility of circuit damage.

[0025] In addition, by setting up a temperature detection circuit and attaching the temperature sensor to the battery, the control circuit in the tool can monitor the battery temperature through this temperature detection circuit when the battery pack is used in combination with the tool. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the battery pack structure of this utility model.

[0028] Figure 2 This is an exploded view of the battery pack of this utility model.

[0029] Figure 3 This is a structural schematic diagram of the battery pack of this utility model from another perspective.

[0030] Figure 4 This is an exploded view of the battery pack of this utility model from another perspective.

[0031] Figure 5 This is a schematic diagram of the battery pack concealed housing and the battery body of this utility model.

[0032] Figure 6 This is a circuit diagram of the control circuit and touch circuit of this utility model;

[0033] Figure 7 This is a circuit diagram of the indicator light circuit of this utility model;

[0034] Figure 8 This is a circuit diagram of the temperature detection circuit of this utility model.

[0035] In the figure, 100 is the housing; 101 is the half-shell; 110 is the indicator port; 120 is the first output port; 130 is the second output port; 200 is the circuit board assembly; 210 is the first circuit board; 220 is the second circuit board; 300 is the indicator; 400 is the first touch button; 500 is the second touch button; 600 is the extension; 700 is the battery body; 800 is the first interface assembly; and 900 is the second interface assembly. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] like Figures 1-5 As shown, this embodiment provides a battery pack, including: a housing 100, a circuit board assembly 200, an indicator 300, and a first touch button 400.

[0038] The housing 100 is provided with a receiving cavity and an indicator port 110, and the indicator port 110 is connected to the receiving cavity.

[0039] The circuit board assembly 200 is located inside the receiving cavity.

[0040] The indicator 300 is located in the indicator port 110 and is electrically connected to the circuit board assembly 200.

[0041] The first touch button 400 is disposed on the housing 100 and located at one end of the housing 100. The first touch button 400 is provided with a first touch circuit. The first touch circuit is electrically connected to the circuit board assembly 200. The first touch circuit is used to control whether the indicator 300 works through the circuit board assembly 200.

[0042] Specifically, touching the device triggers indicator 300 to provide indication for a certain period of time.

[0043] In this embodiment, touching the first touch button 400 can control whether the indicator 300 works through the circuit board assembly 200, conveniently providing the user with information on the battery level, preventing the user from only realizing that the battery body 700 is depleted when the battery is exhausted, and allowing the user to know the battery level at any time.

[0044] like Figures 1-5As shown, based on the above embodiment, a second touch button 500 is also included. The second touch button 500 is disposed on the housing 100 and located at the other end of the housing 100. A second touch circuit is disposed on the second touch button 500. The second touch circuit is electrically connected to the circuit board assembly. The second touch circuit is used to control whether the indicator 300 works through the circuit board assembly 200.

[0045] Specifically, it also includes an extension 600, through which the second touch button 500 is electrically connected to the circuit board assembly 200.

[0046] Specifically, the second touch button 500 is disposed on the housing 100 and located at the end of the housing 100 away from the first touch button 400.

[0047] More specifically, the extension 600 is a nickel sheet, or it can be any other metal with good conductivity.

[0048] In this embodiment, the second touch button 500 is disposed on the housing 100 and located at the other end of the housing 100. The second touch button 500 is electrically connected to the circuit board assembly 200. The second touch button 500 can control whether the indicator 300 works or not through the circuit board assembly 200. Therefore, the user can achieve the same effect no matter which end of the battery pack the touch button touches, which is more convenient.

[0049] like Figures 1-5 As shown, based on the above embodiments, the circuit board assembly 200 includes a first circuit board 210, which is located on the housing 100 near the first touch button 400. The indicator 300 is electrically connected to the first circuit board 210, and a control circuit is provided on the first circuit board. The indicator is electrically connected to the control circuit.

[0050] The control circuit contains a control chip configured to receive electrical signals from the touch circuit and control the LEDs in the indicator to emit beams of light of the corresponding color to display the battery pack power.

[0051] In this embodiment, the first circuit board 210 is located on the housing 100 near the end of the first touch button 400. The first touch button 400 can control whether the indicator 300 works or not through the first circuit board 210. Therefore, there is no need to connect the first touch button 400 to the first circuit board 210 through a long wire, which reduces the possibility of line damage.

[0052] like Figures 1-5 As shown, based on the above embodiments, the circuit board assembly 200 further includes a second circuit board 220, which is electrically connected to the first circuit board, and the indicator light circuit is disposed on the second circuit board.

[0053] Furthermore, the indicator light circuit includes a tri-color lamp, which is formed by parallel connection of LEDs corresponding to three colors. The positive terminals of the LEDs are connected to the control chip through resistors R16, R17 and R22 connected in series.

[0054] like Figure 6 and Figure 7 As shown, it transmits electrical signals to the control chip U2 by touching the KEY-TOUCH touch point. The control chip U2 is a microcontroller and also a touch IC. After receiving the touch signal, it displays a color that matches the current battery voltage through a three-color LED.

[0055] In other words, when a person touches the contact area on the touch circuit, the control chip can receive the corresponding touch signal, thereby controlling the indicator light circuit to display the corresponding battery level. Different colored LEDs emit corresponding colors to represent different battery levels. For example, a red LED indicates that the battery level is below a certain value or percentage, while a green LED indicates that the battery level is above a certain value or percentage.

[0056] Furthermore, such as Figure 8 As shown, it also includes a temperature detection circuit, which includes a resistor R23. One end of resistor R23 is electrically connected to both the temperature sensor and the electrical contacts, while the other end is grounded. The electrical contacts are used to connect to the control circuit of the power tool when the battery pack is used in combination with any power tool.

[0057] By setting up a temperature detection circuit and attaching the temperature sensor to the battery, the control circuit in the tool can monitor the battery temperature when the battery pack is used in combination with the tool.

[0058] like Figures 1-5 As shown, based on the above embodiments, an interface component is also included. The interface component includes a first interface component 800 and a second interface component 900. Both the first interface component 800 and the second interface component 900 are disposed on the housing 100. The first interface component 800 is electrically connected to the circuit board assembly 200 and is used for discharging. The second interface component 900 is electrically connected to the circuit board assembly 200 and is used for charging.

[0059] Specifically, the housing 100 is further provided with an output port 120, the first output port 120 is connected to the receiving cavity, and the first interface component 800 is located at the first output port 120.

[0060] like Figures 1-5 As shown, based on the above implementation method, the first interface component 800 is a USB connector.

[0061] In this embodiment, the first interface component 800 is a USB Type-A connector, but it can also be other USB connectors, which are not specifically limited here.

[0062] Specifically, the housing 100 is further provided with a second output port 130, which communicates with the receiving cavity, and the second interface assembly 900 is located at the second output port 130.

[0063] like Figures 1-5 As shown, based on the above implementation method, the second interface component is also used for discharging.

[0064] In this embodiment, the second interface component 900 is connected to the first circuit board 210 and powered by the battery body 700, providing another form of power supply for external devices.

[0065] It is also worth noting that the extension 600 can be used as part of the second interface assembly 900, eliminating one pole of the second interface assembly 900 and saving processing steps and materials.

[0066] like Figures 1-5 As shown, based on the above embodiment, the housing 100 includes two half-shells 101, which are joined together to form the housing 100. The receiving cavity is formed between the two half-shells 101. The first output port 120 is located in one half-shell 101, and the second output port 130 is located in the other half-shell 101.

[0067] In this embodiment, the two half-shells 101 are detachably connected together, thereby enabling the battery pack to be easily inspected and the internal structures such as the battery body 700 located in the receiving cavity to be replaced.

[0068] It is also worth noting that the first output port 120 is located in one half-shell 101 and the second output port 130 is located in the other half-shell 101. Therefore, when the two half-shells 101 are formed separately, it prevents the single half-shell 101 from being too complex and difficult to manufacture, and the replacement cost is also lower.

[0069] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0070] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0073] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A circuit structure for a battery pack, characterized in that, include: At least one touch circuit; A control circuit electrically connected to the touch circuit, wherein a control chip is arranged in the control circuit; An indicator circuit includes at least one light-emitting diode, which is electrically connected to the control chip. The control chip is configured to receive electrical signals from the touch circuit and control the light-emitting diode to emit beams of light of corresponding colors to display the battery pack power.

2. The circuit structure of a battery pack according to claim 1, characterized in that, The indicator light circuit includes a tri-color light, which is formed by parallel connection of LEDs corresponding to three colors. The positive terminals of the LEDs are connected to the control chip via a first resistor connected in series.

3. The circuit structure of a battery pack according to claim 1, characterized in that, Also includes: A temperature detection circuit is provided, wherein a second resistor is provided, one end of which is electrically connected to the temperature sensor and the electrical contact, and the other end is grounded; The electrical contacts are used to form an electrical connection with the control circuit of the power tool when the battery pack is used in combination with any power tool.

4. A battery pack, comprising the circuit structure of a battery pack as described in any one of claims 1-3, characterized in that, Also includes: The housing has a receiving cavity and an indicator port, the indicator port being in communication with the receiving cavity; A circuit board assembly located within the receiving cavity; An indicator located at the indicator port, wherein an indicator light circuit is provided on the indicator, and the indicator light circuit is electrically connected to the circuit board assembly; A first touch button is disposed on the housing and located at one end of the housing. The first touch button is provided with a first touch circuit, which is electrically connected to the circuit board assembly.

5. A battery pack according to claim 4, characterized in that, The indicator port is located on the circumferential sidewall of the housing.

6. A battery pack according to claim 4, characterized in that, The circuit board assembly includes a first circuit board located on the housing near the first touch button. A control circuit is provided on the first circuit board, and the indicator is electrically connected to the control circuit.

7. A battery pack according to claim 6, characterized in that, The circuit board assembly further includes a second circuit board, which is electrically connected to the first circuit board, and the indicator light circuit is disposed on the second circuit board.

8. A battery pack according to claim 7, characterized in that, The second circuit board is a flexible circuit board.

9. A battery pack according to claim 7, characterized in that, The shape of the second circuit board is adapted to the inner wall of the housing.

10. A battery pack according to claim 4, characterized in that, It also includes a second touch button, which is disposed on the housing and located at the other end of the housing. The second touch button is provided with a second touch circuit, which is electrically connected to the circuit board assembly. The second touch button is used to control whether the indicator works or not through the circuit board assembly.

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