Battery pack lamp display control circuit, battery pack and electric equipment

Abstract

The utility model provides a battery pack lamp display control circuit, a battery pack and electric equipment, and the battery pack lamp display control circuit comprises a power supply circuit which is provided with a master control switch and a low-voltage protector; the control circuit comprises a first control assembly and a second control assembly, the first control assembly comprises a mechanical switch and a release mechanism, and the second control assembly comprises a PC switch and is connected with the control module. According to the invention, the condition that the battery continuously supplies power ineffectively due to extrusion and collision of the mechanical switch is avoided, so that the energy consumption of the battery is greatly reduced. Besides, when the control circuit or the power supply circuit is abnormal, the low-voltage protector can cut off the circuit before the energy of the battery is used up, so that the basic protection effect on the circuit is realized from hardware, and compared with the conventional lamp display control technology at the present stage, the lamp display control technology has the advantages that the cost is reduced; the system has the remarkable advantages of being high in use reliability, flexible in control mode, high in compatibility, wide in application range and the like, and has wide use prospects in the industry.

Description

Technical Field

[0001] The present invention relates to the technical field of light display equipment, and specifically refers to a battery pack light display control circuit, a battery pack and electrical equipment. Background Art

[0002] When the battery pack is removed from the vehicle, it is necessary to be able to view the battery power information through the light display device. In order to meet this demand, the current common practice on the market is to connect the light display device to the battery cell end, and directly control the power input of the light display device through pure hardware technology such as buttons. However, this control method has certain limitations. First of all, the user needs to hold down the button to power on, which undoubtedly causes certain inconveniences to the user experience, and in a high-power consumption environment, this control method seems to be inadequate. Secondly, during transportation, storage, etc., the buttons may be squeezed, stuck, etc., which will cause the power switch to be turned on all the time, thereby continuously consuming battery power and seriously affecting the battery life.

[0003] At present, although some solutions use self-locking mechanisms to improve the key experience, such solutions still cannot completely avoid the risk of keys being squeezed or stuck during transportation, nor can they prevent program abnormalities from causing the switch circuit to be turned on. Summary of the invention

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problems of misoperation and inability to control battery depletion in the mechanically controlled battery pack light display device in the prior art, and to provide a battery pack light display control circuit, a battery pack and electrical equipment.

[0005] In order to solve the above technical problems, the utility model provides a battery pack light display control circuit, which includes: a power supply circuit, on which a master control switch and a low-voltage protector are provided, the battery input end of the power supply circuit is connected to the battery pack, and the power supply output end of the power supply circuit is connected to the light display device circuit; a control circuit, which is connected to the power supply circuit, and includes a first control component and a second control component, the first control component and the second control component are arranged in parallel with each other, wherein the first control component includes a mechanical switch and a discharge mechanism, the discharge mechanism cuts off the current after storing electricity, the second control component includes a PC switch, and the second control component is connected to the control module.

[0006] In one embodiment of the present utility model, the low voltage protector is arranged between the master control switch and the output end, and the control circuit is connected to the master control switch.

[0007] In one embodiment of the present utility model, the discharge mechanism is arranged between the mechanical switch and the master control switch, and the PC switch is arranged between the control module and the master control switch.

[0008] In one embodiment of the present invention, the discharge mechanism includes a trigger capacitor and a discharge resistor, and the trigger capacitor and the discharge resistor are arranged in parallel with each other.

[0009] In one embodiment of the present invention, it also includes at least one current limiting resistor.

[0010] In one embodiment of the present invention, the low voltage protector is a semiconductor low voltage protector.

[0011] The utility model also provides a battery pack, which includes the above-mentioned battery pack light display control circuit and a battery body, wherein the battery input end of the battery pack light display control circuit is connected to the output end of the battery body.

[0012] In one embodiment of the utility model, it also includes a control module, a sampling module, a voltage stabilizing module and a light-emitting device, the input ends of the sampling module and the voltage stabilizing module are respectively connected to the output end of the battery pack light display control circuit, the output ends of the sampling module, the voltage stabilizing module and the battery pack light display control circuit are respectively connected to the input end of the control module, and the output end of the control module is connected to the light-emitting device.

[0013] In one embodiment of the present invention, the control module is an MCU control terminal; the voltage stabilization module is a low voltage difference linear regulator; and the light emitting device is an electronic display screen.

[0014] The utility model provides an electric device, which comprises the battery pack mentioned above.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] In actual use of the battery pack light display control circuit, battery pack and electrical equipment described in the utility model, the operator can flexibly adjust the power supply circuit through the second control component by pressing the mechanical switch once. At the same time, the mechanical switch can be intercepted by the discharge mechanism during use, which avoids the situation where the battery continues to supply ineffective power due to squeezing and collision of the mechanical switch during storage and transportation, thereby greatly reducing battery energy consumption. In addition, when an abnormal situation occurs in the control circuit or the power supply circuit itself, the low-voltage protector can also cut off the circuit before the battery energy is exhausted, thereby achieving basic protection of the circuit from the hardware. Compared with the current conventional light display control technology, this application has significant advantages such as high reliability, flexible control method, strong compatibility and wide application range, and has broad application prospects in this industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the connection structure of the battery pack light display control circuit in the preferred embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection structure of the battery pack in another embodiment of the present invention.

[0020] Explanation of the reference numerals in the specification: 100, battery pack light display control circuit; 110, power supply circuit; B+IN, battery input terminal; Vin, power supply output terminal; Q1, master control switch; ZD1, low voltage protector; 120, control circuit; 121, first control component; SW1, mechanical switch; 122, discharge mechanism; C9, trigger capacitor; R18, discharge resistor; 123, second control component; Q2, PC switch; 200, control module; 300, sampling module; 400, voltage stabilizing module; 500, light-emitting device; 600, battery body. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Embodiment 1

[0023] See also Figure 1 As shown, this embodiment provides a battery pack light display control circuit 100, which includes: a power supply circuit 110, the power supply circuit 110 is provided with a main control switch Q1 and a low voltage protector ZD1, the battery input terminal B+IN of the power supply circuit 110 is connected to the battery pack, and the power supply output terminal Vin of the power supply circuit 110 is connected to the light display device circuit; a control circuit 120, the control circuit 120 is connected to the power supply circuit 110, and includes a first control component 121 and a second control component 123, the first control component 121 and the second control component 123 are arranged in parallel with each other, wherein the first control component 121 includes a mechanical switch SW1 and a discharge mechanism 122, the discharge mechanism 122 cuts off the current after storing electricity, the second control component 123 includes a PC switch Q2, and the second control component 123 is connected to the control module 200.

[0024] In the actual use of the battery pack light display control circuit 100 described in the utility model, the operator can achieve the effect of flexibly adjusting the power supply circuit 110 through the second control component 123 by only pressing the mechanical switch SW1 once. At the same time, based on the ability to intercept the mechanical switch SW1 through the discharge mechanism 122 during use, the situation in which the battery continues to be ineffectively powered due to the mechanical switch SW1 being squeezed and collided during storage and transportation is avoided, thereby greatly reducing the battery energy consumption. In addition, when an abnormal situation occurs in the control circuit 120 or the power supply circuit 110 itself, the low-voltage protector ZD1 can also cut off the circuit before the battery energy is exhausted, thereby achieving basic protection of the circuit from the hardware. Compared with the current conventional light display control technology, this application has significant advantages such as high reliability, flexible control method, strong compatibility and wide application range, and has broad application prospects in this industry.

[0025] See also Figure 1 As shown, the power supply circuit 110 in this embodiment is used to realize the main electrical connection function, and the control circuit 120 is used to adjust the on-off state of the power supply circuit 110 through the first control component 121 and the second control component 123. Further, in the power supply circuit 110, the master control switch Q1, the resistor R14, the capacitor C8 and the resistor R15 together constitute a high-level switch circuit to control the battery to supply power to the light display device circuit, wherein the resistor R15 is a current limiting resistor, which is used to protect the circuit, and the resistor R14 and the capacitor C8 can achieve the effect of voltage stabilization and filtering. In this embodiment, the low-voltage protector ZD1 is arranged between the master control switch Q1 and the output end, and the control circuit 120 is connected to the master control switch Q1. When the master switch Q1 in this embodiment fails, or the circuit itself fails in a way that can render the master switch Q1 ineffective, a short circuit will occur between the battery input terminal B+IN and the power supply output terminal Vin. At this time, the battery can continue to supply power to the light display circuit, which will cause unnecessary power consumption. In order to prevent the battery from running out of power, the low-voltage protector ZD1 in this embodiment can automatically cut off the circuit when the voltage drops to a preset value, thereby avoiding permanent damage caused by over-discharge of the battery. Specifically, the low-voltage protector ZD1 is a semiconductor low-voltage protector ZD1, which can quickly respond to changes in the battery voltage and prevent the battery from continuing to discharge. The utility model does not impose specific restrictions on the specific type and installation quantity of the low-voltage protector ZD1.

[0026] See also Figure 1As shown, the discharge mechanism 122 is arranged between the mechanical switch SW1 and the master control switch Q1, and the PC switch Q2 is arranged between the control module 200 and the master control switch Q1. The discharge mechanism in this embodiment is used to realize the current interception effect on the mechanical switch SW1. Specifically, the discharge mechanism 211 includes a trigger capacitor C9 and a discharge resistor R18, and the trigger capacitor C9 and the discharge resistor R18 are arranged in parallel with each other. Based on this, when the mechanical switch SW1 is closed, the first control component 121 is turned on. At this time, the discharge mechanism 122 can store and charge the electric energy, and then consume the electric energy through the discharge resistor R18, thereby temporarily failing the mechanical switch SW1. Therefore, even if the mechanical switch SW1 is accidentally touched, squeezed or even stuck, it will not cause battery power consumption loss.

[0027] See also Figure 1 As shown, the second control component 123 composed of the resistor R16, the resistor R17 and the PC switch Q2 jointly provides a control signal to the power supply circuit 110, wherein the resistor R16 is a current limiting resistor. When the mechanical switch SW1 is in a failed state, the PC switch Q2 can adjust the power supply circuit 110 through its external control module 200, thereby achieving a flexible control process of the power supply circuit 110 while ensuring that the mechanical switch SW1 has no risk of accidental contact.

[0028] The working principle and process of the battery pack light display control circuit 100 in this embodiment are described below: the battery input terminal B+IN supplies power to the power supply circuit 110, and the power supply output terminal Vin supplies power to the subsequent light display device circuit. When the mechanical switch SW1 is pressed for the first time, the discharge mechanism 122 can intercept the current after charging. At this time, the mechanical switch SW1 fails, and the operator can shut down the power supply circuit 110 through the second control component 123. When the circuit 120 needs to be controlled by the mechanical switch SW1, the second control component 123 can be short-circuited through the PC switch Q2, which will consume the energy stored in the discharge mechanism 122. When the energy in the discharge mechanism 122 is exhausted, the mechanical switch SW1 can be closed again to charge the discharge mechanism 122 again. Repeating the above operation can realize the process in which the first control component 121 and the second control component 123 alternately control the power supply circuit 110. Based on the above process, the battery pack light display control circuit 100 in this application can realize the case self-locking function;

[0029] If a fault occurs at the main control switch Q1, or there are other conditions that cause the main control switch Q1 to fail, the battery input terminal B+IN and the power supply output terminal Vin are short-circuited. At this time, the battery continues to supply power to the lighting device until the voltage is consumed below the preset parameters of the low-voltage protector ZD1. The power supply circuit 110 is shut down by the low-voltage protector ZD1 hardware, thereby protecting the battery.

[0030] Embodiment 2

[0031] The present embodiment provides a battery pack, which includes the battery pack light display control circuit 100 and a battery body 600 described in the first embodiment, wherein the battery input terminal B+IN of the battery pack light display control circuit 100 is connected to the output terminal of the battery body 600. Furthermore, the present embodiment also includes a control module 200, a sampling module 300, a voltage stabilizing module 400 and a light emitting device 500, wherein the input terminals of the sampling module 300 and the voltage stabilizing module 400 are respectively connected to the output terminal of the battery pack light display control circuit 100, the output terminals of the sampling module 300, the voltage stabilizing module 400 and the battery pack light display control circuit 100 are respectively connected to the input terminal of the control module 200, and the output terminal of the control module 200 is connected to the light emitting device 500. Among them, the control module 200 is an MCU control terminal; the voltage stabilizing module 400 is a low voltage difference linear regulator; and the light emitting device 500 is an electronic display screen.

[0032] Embodiment 3

[0033] The present embodiment provides an electrical device, which includes the battery pack described in the second embodiment. Furthermore, the electrical device may be a car, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The car may be a fuel car, a gas car, or a new energy car, and the new energy car may be a pure electric car, a hybrid car, or an extended-range car, and the like; the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, and the like; the electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, and the like. The embodiments of the present invention do not impose any special restrictions on the above-mentioned electrical devices.

[0034] In summary, during actual use of the battery pack light display control circuit 100, battery pack and electrical equipment described in the utility model, the operator can flexibly adjust the power supply circuit 110 through the second control component 123 by simply pressing the mechanical switch SW1 once. At the same time, the mechanical switch SW1 can be cut off by the discharge mechanism 122 during use, thereby avoiding the situation in which the battery continues to be ineffectively powered due to squeezing and collision of the mechanical switch SW1 during storage and transportation, thereby greatly reducing battery energy consumption. In addition, when an abnormal situation occurs in the control circuit 120 or the power supply circuit 110 itself, the low-voltage protector ZD1 can also cut off the circuit before the battery energy is exhausted, thereby achieving basic protection of the circuit from a hardware perspective. Compared with the current conventional light display control technology, the present application has significant advantages such as high reliability, flexible control method, strong compatibility and a wide range of applications, and has broad prospects for use in this industry.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A battery pack light display control circuit, characterized in that: include: A power supply circuit, wherein the power supply circuit is provided with a master control switch and a low-voltage protector, the battery input end of the power supply circuit is connected to a battery pack, and the power supply output end of the power supply circuit is connected to a light display device circuit; A control circuit is connected to the power supply circuit, and includes a first control component and a second control component, the first control component and the second control component are arranged in parallel with each other, wherein the first control component includes a mechanical switch and a discharge mechanism, the discharge mechanism cuts off the current after storing electricity, the second control component includes a PC switch, and the second control component is connected to the control module.

2. The battery pack light display control circuit according to claim 1, characterized in that: The low voltage protector is arranged between the master control switch and the output end, and the control circuit is connected to the master control switch.

3. The battery pack light display control circuit according to claim 1, characterized in that: The discharge mechanism is arranged between the mechanical switch and the master control switch, and the PC switch is arranged between the control module and the master control switch.

4. The battery pack light display control circuit according to claim 1, characterized in that: The discharge mechanism includes a trigger capacitor and a discharge resistor, and the trigger capacitor and the discharge resistor are arranged in parallel with each other.

5. The battery pack light display control circuit according to claim 1, characterized in that: It also includes at least one current limiting resistor.

6. The battery pack light display control circuit according to claim 1, characterized in that: The low voltage protector is a semiconductor low voltage protector.

7. A battery pack, characterized in that: It comprises a battery pack light display control circuit and a battery body as described in any one of claims 1 to 6, wherein the battery input end of the battery pack light display control circuit is connected to the output end of the battery body.

8. The battery pack according to claim 7, characterized in that: It also includes a control module, a sampling module, a voltage stabilizing module and a light-emitting device. The input ends of the sampling module and the voltage stabilizing module are respectively connected to the output end of the battery pack light display control circuit, the output ends of the sampling module, the voltage stabilizing module and the battery pack light display control circuit are respectively connected to the input end of the control module, and the output end of the control module is connected to the light-emitting device.

9. The battery pack according to claim 8, characterized in that: The control module is an MCU control terminal; the voltage stabilizing module is a low voltage drop linear regulator; and the light emitting device is an electronic display screen.

10. An electrical equipment, characterized in that: A battery pack comprising any one of claims 7 to 9.

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