Battery system capable of converting voltage
By configuring a simple switch structure and connection lines in the battery system, the voltage conversion of the battery system is achieved, and the complexity and high energy consumption problems of the existing battery system when adapting to different loads and power supply conditions is solved, and the safety and stability of the system are improved.
Patent Information
- Application Number
- CN202421212953.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When existing battery systems adapt to different load and power supply conditions, they have problems such as complex structure, high energy consumption, low battery life, high production costs, difficult adjustment and control, and high risk of short circuit or power supply failure.
By configuring a simple switch structure and a connection line structure on the two battery bodies, the battery system outputs two rated voltages, and the voltage conversion of the battery system is controlled by different states of the switching module (shutdown, first conduction, and second conduction).
It realizes stable conversion of the battery system between different voltage states, adapts to different loads and power supply conditions, improves the safety and stability of the battery system, and reduces the production cost and the difficulty of adjustment and control.
Smart Images
Figure CN222620719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of battery systems, in particular to a battery system capable of voltage conversion. Background Art
[0002] In electronic devices, the technology that adjusts or converts the voltage provided by the battery according to different power requirements to ensure that the device can operate normally. This technology is essential to maintaining the performance of electronic devices and extending battery life.
[0003] Traditionally, the voltage of battery cells is determined when they leave the factory. When faced with different load and power supply conditions, different batteries are usually required.
[0004] With the development of technology, batteries have gradually gained the ability to automatically adjust to different load and power conditions. For example, in order to adapt to voltage requirements, a voltage regulator such as a linear regulator or a switching regulator can be used to convert a higher input voltage into the required lower voltage, or a DC-DC converter can be used to change the output voltage of the battery. However, these solutions have problems such as complex structure, high energy consumption, and low battery life.
[0005] In order to balance voltage adaptation and energy saving, a battery system composed of two single cells can be used for power supply. This battery system can output power of two rated voltages by adjusting the electrical connection structure between the two battery cells, so that the battery system can adapt to the needs of different loads and power supply conditions.
[0006] However, adjusting the electrical connection structure of two single cells often requires the use of multiple switches and complex electrical connections, resulting in high production costs, difficulty in adjustment and control, and increased risks of short circuit or power failure in the battery system. Utility Model Content
[0007] In order to solve the problems existing in the prior art, the main purpose of the utility model is to provide a battery system with voltage conversion. By configuring a simple switch structure and a connecting line structure on two battery bodies, the battery system can output two rated voltages of high and low. On the basis of safety and stability, the battery can have more usage scenarios.
[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0009] A voltage-convertible battery system includes a battery module, wherein the battery module includes a first battery body, a second battery body and a switch module, the battery module is configured with a positive terminal and a negative terminal, the first battery body and the second battery body are respectively configured with a positive terminal and a negative terminal,
[0010] The switch module is configured with a first fixed end, a first upper contact end, a first lower contact end, a second fixed end, a second upper contact end, a second lower contact end and a control end;
[0011] The switch module is used for:
[0012] In the off state, the first fixed end is disconnected from the first upper contact end and the first lower contact end, and the second fixed end is disconnected from the second upper contact end and the second lower contact end.
[0013] In the first conducting state, the first fixed end is connected to the first upper contact end, and the second fixed end is connected to the second upper contact end.
[0014] In the second conducting state, the first fixed end is connected to the first lower contact end, and the second fixed end is connected to the second lower contact end;
[0015] The positive terminal of the first battery body is electrically connected to the positive terminal of the battery module, and the negative terminal of the second battery body is electrically connected to the negative terminal of the battery module;
[0016] The negative terminal of the first battery body is electrically connected to the first fixed terminal of the switch module, and the positive terminal of the second battery body is electrically connected to the second fixed terminal of the switch module;
[0017] The negative terminal of the second battery body is electrically connected to the first upper contact terminal of the switch module, and the positive terminal of the first battery body is electrically connected to the second upper contact terminal of the switch module;
[0018] The first lower contact terminal of the switch module is electrically connected to the second lower contact terminal of the switch module.
[0019] Optionally, the battery system further comprises a control module, the switch module is further configured with a control terminal, and the control module is electrically connected to the control terminal of the switch module;
[0020] When the control module sends a shutdown signal to the control end of the switch module, the switch module is configured to be in the shutdown state.
[0021] When the control module sends a first conduction signal to the control terminal of the switch module, the switch module is configured to be in a first conduction state.
[0022] When the control module sends a second conduction signal to the control end of the switch module, the switch module is configured to be in a second conduction state.
[0023] Optionally, the battery system further comprises a voltage detection module, wherein detection ends of the voltage detection module are respectively electrically connected to the positive terminal and the negative terminal of the battery module, and a voltage output of the voltage detection module is electrically connected to the control module.
[0024] Optionally, the battery system further comprises a power output interface, wherein the power output interface is electrically connected to the positive terminal and the negative terminal of the battery module respectively.
[0025] Optionally, the battery system further includes a start-and-close module, one side of which is electrically connected to the positive terminal and / or the negative terminal of the battery module, and the other side of which is electrically connected to the power output interface.
[0026] Optionally, the switch module is further used for disconnecting the first fixed end from the first upper contact end and the first lower contact end respectively, and disconnecting the second fixed end from the second upper contact end and the second lower contact end respectively, in the off state;
[0027] When the control module sends a shut-off signal to the control terminal of the switch module, the switch module is configured to be in a shut-off state.
[0028] Optionally, when the control end does not receive a signal, the first fixed end is disconnected from the first upper contact end and the first lower contact end, and the second fixed end is disconnected from the second upper contact end and the second lower contact end.
[0029] Optionally, when the control end does not receive a signal, the first fixed end is connected to the first upper contact end, and the second fixed end is connected to the second upper contact end.
[0030] Optionally, when the control end does not receive a signal, the first fixed end is connected to the first lower contact end, and the second fixed end is connected to the second lower contact end.
[0031] Compared with the prior art, the utility model has the following beneficial effects:
[0032] The battery system of the utility model is configured with a first battery body, a second battery body and a switch module, wherein the positive terminal of the first battery body serves as the positive terminal of the battery system, and the second battery body serves as the negative terminal of the battery system. In the first conducting state of the switch module, the negative terminal of the first battery body is conductively connected to the negative terminal of the second battery body through the first fixed terminal and the first upper contact terminal of the switch module, and at the same time, the positive terminal of the second battery body is conductively connected to the positive terminal of the first battery body through the second fixed terminal and the second upper contact terminal of the switch module, so that the battery system can output a first voltage; in the first conducting state of the switch module, the negative terminal of the first battery body is conductively connected to the positive terminal of the second battery body through the first fixed terminal, the first lower contact terminal and the second lower contact terminal of the switch module, so that the battery system is converted to the second voltage, realizing the conversion of the battery system between the first voltage and the second voltage, achieving the effect of adapting to different load and power supply conditions, and at the same time, in any state of the switch module, a voltage can be stably output to avoid the risk of short circuit or power supply failure, thereby improving the safety and stability of the battery system.
[0033] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 A schematic diagram of a first signal state structure of a voltage-convertible battery system according to the utility model;
[0035] Figure 2 A schematic diagram of a second signal state structure of a voltage-convertible battery system according to the utility model;
[0036] Figure 3 A schematic diagram of a third signal state structure of a voltage-convertible battery system according to the utility model;
[0037] Figure 4 A schematic diagram of the overall structure of a voltage-convertible battery system according to the utility model.
[0038] Figure numerals: 10, battery module; 11, first battery body; 12, second battery body; 20, switch module; 21, first fixed end; 22, second fixed end; 23, first upper contact end; 24, second upper contact end; 25, first lower contact end; 26, second lower contact end; 27, control end; 30, control module; 40, voltage detection module; 50, power output interface; 60, opening and closing module. DETAILED DESCRIPTION
[0039] In order to better illustrate the purpose, technical solution and advantages of the utility model, the specific implementation of the utility model is further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but are not intended to limit the scope of the utility model.
[0040] like Figures 1 to 3 As shown, a voltage-convertible battery system according to an embodiment of the utility model includes a battery module 10. The battery module 10 includes a first battery body 11, a second battery body 12, a switch module 20, and a control module 30. The battery module 10 is configured with a positive terminal and a negative terminal. The first battery body 11 and the second battery body 12 are respectively configured with a positive terminal and a negative terminal.
[0041] The switch module 20 is configured with a first fixed terminal 21 , a first upper contact terminal 23 , a first lower contact terminal 25 , a second fixed terminal 22 , a second upper contact terminal 24 , a second lower contact terminal 26 and a control terminal 27 .
[0042] The positive terminal of the first battery body 11 is electrically connected to the positive terminal of the battery module 10, and the negative terminal of the second battery body 12 is electrically connected to the negative terminal of the battery module 10. The negative terminal of the first battery body 11 is electrically connected to the first fixed terminal 21 of the switch module 20, and the positive terminal of the second battery body 12 is electrically connected to the second fixed terminal 22 of the switch module 20. The positive terminal of the first battery body 11 is also electrically connected to the second upper contact terminal 24 of the switch module 20, and the negative terminal of the second battery body 12 is also electrically connected to the first upper contact terminal 23 of the switch module 20. The first lower contact terminal 25 of the switch module 20 is electrically connected to the second lower contact terminal 26 of the switch module 20.
[0043] Specifically, the switch module 20 is configured to enter the off state when the control terminal 27 receives the off signal, enter the first on state when the control terminal 27 receives the first on signal, and enter the second on state when the control terminal 27 receives the second on signal. Each state switch module 20 will form a corresponding on-off state, as follows:
[0044] refer to Figure 1 In the off state, the first fixed end 21 is disconnected from the first upper contact end 23 and the first lower contact end 25, and the second fixed end 22 is disconnected from the second upper contact end 24 and the second lower contact end 26.
[0045] refer to Figure 2 In the first conducting state, the first fixed end 21 is conducted with the first upper contact end 23 , and the second fixed end 22 is conducted with the second upper contact end 24 .
[0046] refer to Figure 3 In the second conducting state, the first fixed end 21 is conducted with the first lower contact end 25 , and the second fixed end 22 is conducted with the second lower contact end 26 .
[0047] It can be understood that, in the off state, since the first fixed end 21 is disconnected from the first upper contact end 23 and the second fixed end 22 is disconnected from the second upper contact end 24, the negative terminal of the first battery body 11 is disconnected from the negative terminal of the second battery body 12, and the positive terminal of the second battery body 12 is also disconnected from the positive terminal of the first battery body 11. At the same time, in the off state, since the first fixed end 21 is disconnected from the first lower contact end 25 and the second fixed end 22 is disconnected from the second lower contact end 26, the positive terminal of the second battery body 12 is disconnected from the negative terminal of the first battery body 11. Overall, the first battery body 11 and the second battery body 12 are configured to be not conductively connected, and the battery module 10 has no power output.
[0048] In the first conduction state, the first fixed end 21 is conductive with the first upper contact end 23 and the second fixed end 22 is conductive with the second upper contact end 24. As a result, the negative terminal of the first battery body 11, the first fixed end 21, the first upper contact end 23 and the negative terminal of the second battery body 12 are conductively connected to each other. In other words, the negative terminal of the first battery body 11 and the negative terminal of the second battery body 12 are conductively connected. At the same time, the positive terminal of the second battery body 12, the second fixed end 22, the second upper contact end 24 and the positive terminal of the first battery body 11 are conductively connected to each other. In other words, the positive terminal of the first battery body 11 and the positive terminal of the second battery body 12 are conductively connected. On the whole, the first battery body 11 and the second battery body 12 are configured as a conductive connection structure in which two positive poles are connected and two negative poles are connected, and the battery module 10 outputs power of a first voltage.
[0049] It can be understood that at this time, since the first fixed end 21 is disconnected from the first lower contact end 25 and the second fixed end 22 is disconnected from the second lower contact end 26, the negative terminal of the first battery body 11 and the positive terminal of the second battery body 12 will not be conductive, thereby ensuring the stability and safety of power output.
[0050] In the second conduction state, the first fixed end 21 is conductive with the first lower contact end 25 and the second fixed end 22 is conductive with the second lower contact end 26. As a result, the negative terminal of the first battery body 11, the first fixed end 21, the first lower contact end 25, the second lower contact end 26, the second fixed end 22 and the positive terminal of the second battery body 12 are conductively connected to each other. In other words, the negative terminal of the first battery body 11 and the positive terminal of the second battery body 12 are conductively connected. Overall, the first battery body 11 and the second battery body 12 are configured as a conductive connection structure in which one positive and negative pole is connected and the other positive and negative pole is used as an output, and the battery module 10 outputs power of the second voltage.
[0051] It can be understood that at this time, since the first fixed end 21 is disconnected from the first upper contact end 23 and the second fixed end 22 is disconnected from the second upper contact end 24, the positive terminal of the first battery body 11 is disconnected from the positive terminal of the second battery body 12, and the negative terminal of the first battery body 11 is disconnected from the negative terminal of the second battery body 12, thereby ensuring the stability and safety of the power output.
[0052] It can be seen that the voltage-convertible battery system of the utility model has three states: zero voltage, first voltage, and second voltage, and can realize arbitrary conversion among the three states. Each state can output a voltage stably, avoiding the risk of short circuit or power supply failure, and improving the safety and stability of the battery system.
[0053] Specifically, in this embodiment, the switch module 20 described in this embodiment is configured as a relay. Therefore, there are the following three configuration schemes for the initial state of the relay.
[0054] In the first solution, when the control terminal 27 of the switch module 20 does not receive a signal, the first fixed terminal 21 is disconnected from the first upper contact terminal 23 and the first lower contact terminal 25, and the second fixed terminal 22 is disconnected from the second upper contact terminal 24 and the second lower contact terminal 26. In other words, in the initial state, the first fixed terminal 21 and the second fixed terminal 22 of the switch module 20 are not connected to other contact terminals. As configured in the first solution, the output voltage of the battery module 10 is zero in the initial state, thereby ensuring the safety of battery power supply.
[0055] In the second solution, when the control terminal 27 of the switch module 20 does not receive a signal, the first fixed terminal 21 is connected to the first upper contact terminal 23, and the second fixed terminal 22 is connected to the second upper contact terminal 24. In other words, in the initial state, the positive terminal of the first battery body 11 is connected to the positive terminal of the second battery body 12, and the negative terminal of the first battery body 11 is connected to the negative terminal of the second battery body 12, and the battery module 10 outputs the first voltage. As configured in the second solution, the output voltage is the first voltage, so it is more convenient and direct to adapt to the load of the first voltage.
[0056] In the third solution, when the control terminal 27 of the switch module 20 does not receive a signal, the first fixed terminal 21 is connected to the first lower contact terminal 25, and the second fixed terminal 22 is connected to the second lower contact terminal 26. In other words, in the initial state, the negative terminal of the first battery body 11 is connected to the positive terminal of the second battery body 12, and the battery module 10 outputs the second voltage. As configured in the third solution, the output voltage is the second voltage, so it is more convenient and direct to adapt to the load of the second voltage.
[0057] like Figure 4 As shown, a voltage-convertible battery system of this embodiment is configured as a battery-powered power source. To this end, in this embodiment, specifically, the battery system further includes a voltage detection module 40 and a power output interface 50 .
[0058] Among them, the voltage detection module 40 is configured to have two detection terminals that can detect voltage, and an output terminal that outputs a detection signal. The start-stop module 60 is configured to have two connection terminals, and a control terminal 27 that drives the two connection terminals to be turned on or off in a controlled manner. The power output interface 50 is also configured with positive and negative poles, and is electrically connected to the positive and negative terminals of the battery module 10. Specifically, the positive terminal of the battery module 10 is electrically connected to one of the connection terminals of the start-stop module 60, and the other connection terminal of the start-stop module 60 (60) is electrically connected to the positive pole of the power output interface 50. The negative terminal of the battery module 10 is electrically connected to the negative pole of the power output interface 50. One detection terminal of the voltage detection module 40 is electrically connected to the middle end of the start-stop module 60 (60) and the power output interface 50, and the other detection terminal of the voltage detection module 40 is electrically connected to the negative terminal of the battery module 10. The output terminal of the voltage detection module 40 is electrically connected to the control module 30.
[0059] For ease of understanding, in an operation example of this embodiment, in the initial state, the control module 30 controls the on-off module 60 to be in the off state, that is, the battery module 10 is disconnected from the power output interface 50. In response to the user's instruction, the control module 30 obtains the voltage of the load connected to the power output interface 50 through the voltage detection module 40. If the first voltage can be adapted to the voltage of the connected load, the control module 30 sends a first conduction signal to the switch module 20, so that the switch module 20 switches to the first conduction state, so that the battery module 10 outputs the first voltage, and at the same time controls the on-off module 60 to be turned on, so that the battery module 10 supplies power to the connected load. If the second voltage can be adapted to the voltage of the connected load, the control module 30 sends a second conduction signal to the switch module 20, so that the switch module 20 switches to the second conduction state, so that the battery module 10 outputs the second voltage. When the voltage of the connected load is other conditions, the control module 30 maintains the off state, and the battery module 10 is not connected to the load.
[0060] It can be seen that the voltage-convertible battery system of the present invention can realize intelligent voltage conversion, thereby improving the user experience.
[0061] The above embodiments mainly describe the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A voltage-convertible battery system, comprising a battery module (10), characterized in that: The battery module (10) comprises a first battery body (11), a second battery body (12) and a switch module (20), the battery module (10) being provided with a positive terminal and a negative terminal, the first battery body (11) and the second battery body (12) being provided with a positive terminal and a negative terminal respectively, The switch module (20) is configured with a first fixed end (21), a first upper contact end (23), a first lower contact end (25), a second fixed end (22), a second upper contact end (24), and a second lower contact end (26); The switch module (20) is used for: In the first conducting state, the first fixed end (21) is conducting with the first upper contact end (23), and the second fixed end (22) is conducting with the second upper contact end (24). In the second conducting state, the first fixed end (21) is conducting with the first lower contact end (25), and the second fixed end (22) is conducting with the second lower contact end (26); The positive terminal of the first battery body (11) is electrically connected to the positive terminal of the battery module (10), and the negative terminal of the second battery body (12) is electrically connected to the negative terminal of the battery module (10); The negative terminal of the first battery body (11) is electrically connected to a first fixed terminal (21) of the switch module (20), and the positive terminal of the second battery body (12) is electrically connected to a second fixed terminal (22) of the switch module (20); The negative terminal of the second battery body (12) is electrically connected to a first upper contact terminal (23) of the switch module (20), and the positive terminal of the first battery body (11) is electrically connected to a second upper contact terminal (24) of the switch module (20); The first lower contact terminal (25) of the switch module (20) is electrically connected to the second lower contact terminal (26) of the switch module (20).
2. A voltage-convertible battery system according to claim 1, characterized in that: The battery module further comprises a control module (30), the switch module (20) is further provided with a control terminal (27), and the control module (30) is electrically connected to the control terminal (27) of the switch module (20); When the control module (30) sends a first conduction signal to the control terminal (27) of the switch module (20), the switch module (20) is configured to be in a first conduction state. When the control module (30) sends a second conduction signal to the control terminal (27) of the switch module (20), the switch module (20) is configured to be in a second conduction state.
3. A voltage-convertible battery system according to claim 2, characterized in that: The battery module also includes a voltage detection module (40), the detection ends of the voltage detection module (40) are respectively electrically connected to the positive terminal and the negative terminal of the battery module (10), and the voltage output of the voltage detection module (40) is electrically connected to the control module (30).
4. A voltage-convertible battery system according to claim 3, characterized in that: The battery module also includes a power output interface (50), wherein the power output interface (50) is electrically connected to the positive terminal and the negative terminal of the battery module (10) respectively.
5. A voltage-convertible battery system according to claim 4, characterized in that: The battery module further comprises an opening and closing module (60), one side of the opening and closing module (60) being electrically connected to the positive terminal and / or the negative terminal of the battery module (10), and the other side of the opening and closing module (60) being electrically connected to the power output interface (50).
6. A voltage-convertible battery system according to claim 2, characterized in that: The switch module (20) is also used for, in an off state, the first fixed end (21) is disconnected from the first upper contact end (23) and the first lower contact end (25), and the second fixed end (22) is disconnected from the second upper contact end (24) and the second lower contact end (26); When the control module (30) sends a shutoff signal to the control terminal (27) of the switch module (20), the switch module (20) is configured to be in a shutoff state.
7. A voltage-convertible battery system according to claim 1, characterized in that: In the default state of the switch module (20), the first fixed end (21) is disconnected from the first upper contact end (23) and the first lower contact end (25), and the second fixed end (22) is disconnected from the second upper contact end (24) and the second lower contact end (26).
8. A voltage-convertible battery system according to claim 1, characterized in that: In the default state of the switch module (20), the first fixed end (21) is connected to the first upper contact end (23), and the second fixed end (22) is connected to the second upper contact end (24).
9. A voltage-convertible battery system according to claim 1, characterized in that: In the default state of the switch module (20), the first fixed end (21) is conductively connected to the first lower contact end (25), and the second fixed end (22) is conductively connected to the second lower contact end (26).