Thermal battery with high integration, temperature self-adaption and high activation time precision
By integrating a micro control system in the thermal battery, combining the energy storage module and the temperature compensation module, the temperature adaptation and high accuracy of activation time are achieved, and the problem of insufficient activation time accuracy of existing thermal battery is solved. It is suitable for a wide temperature range and Large volume conditions improve safety and operational reliability.
Patent Information
- Application Number
- CN202411522105.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-01-10
AI Technical Summary
The activation time of existing thermal batteries is greatly affected by factors such as temperature and volume, resulting in insufficient activation time accuracy. Especially in a wide temperature range and large volume, there are safety hazards and operation difficulties.
The integrated design of micro control system and unit thermal battery is adopted. Through the integrated structural and functional mechanical and electrical connection, combined with energy storage module, temperature compensation module and high-precision timing module, the temperature adaptation and high-precision activation time are achieved, providing two A working mode to suit different usage scenarios.
It realizes high accuracy of thermal battery activation time, reduces the impact of temperature and volume on activation time, improves integration and temperature adaptability, is suitable for areas where rapid response is required, and reduces the risk of safety accidents.
Smart Images
Figure CN119297316A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power supply systems, and in particular to a thermal battery with high integration, temperature self-adaptation and high-precision activation time. Background Art
[0002] Thermal batteries are currently the main power source for weapons and equipment due to their long storage life and maintenance-free characteristics. The working principle of thermal batteries is that an activation signal is given from the outside to ignite the pyrotechnics inside the thermal battery, thereby igniting the heating system, melting the electrolyte, and starting the battery.
[0003] The activation time of a thermal battery is defined as the time required from the input of the activation signal to the time when the operating voltage of the battery reaches the specified lower limit. The main activation methods of thermal batteries include electrical activation, mechanical activation (including overload activation, pneumatic activation, etc.), laser activation, etc. Different activation methods have different activation times. The activation time of thermal batteries is also greatly affected by temperature. Generally, the activation time is long at low temperatures and short at high temperatures. The larger the battery volume, the greater the difference in activation time affected by high and low temperatures; the wider the operating temperature range, the greater the difference in activation time.
[0004] With the development of weapons and equipment, the operating temperature range is getting wider and wider in certain specific usage scenarios, and the accuracy requirements for thermal battery activation time are getting higher and higher. In order to improve the accuracy of thermal battery activation time, from the perspective of the thermal battery itself, the following measures can be taken: ① Increasing the overall heat of the battery can shorten the activation time at low temperatures, thereby reducing the difference in activation time at high and low temperatures. Thermal batteries have a long low-temperature activation time, and the lower the temperature, the longer the activation time. By increasing the internal heat of the battery, the activation time does not change significantly at high temperatures, but the activation time can be quickly shortened at low temperatures; ② Use a fast ignition system to shorten the overall activation time of the battery. The shorter the activation time, the lower the base number, which can reduce the difference and improve accuracy.
[0005] The above measures are all based on the battery itself. No matter which method is used to improve the activation time accuracy, it will bring other problems. When the internal heat of the battery is increased, it is easy to cause a safety accident of high temperature melting through the battery and short circuit. The use of the rapid ignition system instantly generates a large thermal shock inside the battery, which is easy to cause a short circuit inside the battery. The rapid ignition system is not conducive to the operator's cutting, and safety accidents are very likely to occur during the operation. Summary of the invention
[0006] The present invention aims to provide a highly integrated, temperature-adaptive, and highly accurate thermal battery for activation time, so as to solve the problem that the activation time of existing thermal batteries is affected by factors such as temperature and volume.
[0007] A highly integrated, temperature-adaptive, and highly accurate thermal battery for activation time in the present solution includes one or more unit thermal batteries and a micro-control system, wherein the micro-control system is mechanically connected to the thermal battery.
[0008] Furthermore, the micro control system is electrically connected to the thermal battery.
[0009] The working principle and beneficial effects of this solution: The micro-control system and the unit thermal battery are mechanically connected in a structural and functional integrated manner, and the micro-control system uses the structural parts of the unit thermal battery as the outer shell; when the thermal battery is small in size and the working time is short, the battery shell is placed above the unit thermal battery, and the poles and the micro-control system PCB board are placed in the battery shell. The electrical connection uses the poles to pass through the micro-control system PCB board and directly weld to the board body, and then cover the cover; when the thermal battery is large in size or has a long working time, the battery shell is placed above the unit thermal battery, and insulating and heat-insulating glue is placed in the battery shell. The poles are connected to the unit thermal battery, and the cover is covered. The micro-control system PCB board is placed above the cover, and the electrical connection uses the flying wire and the board to be indirectly welded. This solution proposes a new type of high-activation-precision thermal battery, which:
[0010] 1. Solved the problem that some weapons and equipment have high requirements for the activation time accuracy of thermal batteries;
[0011] 2. Solved the problem that the activation time of thermal batteries is not affected by the difference between high and low temperatures;
[0012] 3. Solved the problem that activation time is not affected by battery size;
[0013] 4. The present invention has high integration, temperature adaptability, high precision, and can be applied to fields requiring rapid response such as lifesaving.
[0014] Furthermore, the micro-control system is mainly composed of an energy storage module, a temperature compensation module, a high-precision timing module, and an output control module, and the high-precision timing module is bidirectionally electrically connected to the energy storage module, the temperature compensation module, and the output control module. Two working modes can be selected according to the use conditions. Working mode 1: The energy storage module works normally, and the temperature compensation module is disconnected (not working). This working mode is only applicable to thermal batteries with electrical activation, and has high activation accuracy. Its working principle is as follows: the external activation power supply charges the micro-control system energy storage module while activating the thermal battery (after the thermal battery is activated and the voltage is built up to 1.5V, the thermal battery has the ability to power the micro-control system and relays the power to the micro-control system). The activation signal of the thermal battery is synchronized with the power-on signal of the micro-control system (at the same time). The power-on working time of the micro-control system is used as the thermal battery activation zero point, and it is output to the outside after a fixed timing time. The fixed timing time must be greater than the activation time of the thermal battery under low temperature, normal temperature and high temperature conditions. The high-precision timing module starts the countdown function. When the countdown ends, the output control module works, closes the thermal battery output circuit, and the thermal battery outputs electrical energy to the outside. Working mode 2: The temperature compensation module works normally, and the energy storage module is disconnected. Block (not working), this working mode is applicable to thermal batteries of any activation mode, and its accuracy is slightly lower than that of working mode 1; its working principle is: after the thermal battery is used to build up the voltage to 1.5V, it supplies power to the micro-control system. In view of the different time from the thermal battery activation to the voltage establishment to 1.5V under different temperature conditions, it is impossible to accurately collect the thermal battery activation zero point. The temperature value collected by the temperature compensation module is used to compensate for the time interval. The time data from the thermal battery activation to the voltage establishment to 1.5V under different temperature conditions are obtained by experiment. The time compensation value is obtained by table lookup method. The compensation timing time = fixed timing time - time compensation value under different temperature conditions. The fixed timing time must be greater than the activation time of the thermal battery under low temperature, normal temperature and high temperature conditions. When working, the micro-control system revise the compensation timing time after collecting the thermal battery temperature on power-on. When the compensation timing time ends, the output control module works, closes the thermal battery output circuit, and the thermal battery outputs electrical energy to the outside.
[0015] Furthermore, the energy storage module of the micro-control system is mainly composed of film capacitors connected in parallel.
[0016] Furthermore, the temperature compensation module of the micro-control system is composed of a temperature sensor and AD acquisition.
[0017] Furthermore, the high-precision timing module of the micro-control system is composed of a minimum system single-chip microcomputer, the activation time accuracy can be designed according to usage requirements, and the activation time can be modified by software, which must include the activation time of the thermal battery at different temperatures.
[0018] Furthermore, the output control module of the micro-control system can selectively control the output positive line, negative line, or positive and negative lines of the thermal battery according to the usage scenario. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Schematic diagram of the integration of the unit thermal battery and the micro-control system of the present invention
[0020] Figure 2 This is a schematic diagram of the micro-control system of the present invention being placed above the unit thermal battery cover;
[0021] Figure 3 This is the working principle diagram of the micro control system;
[0022] Figure 4 This is the working principle diagram of the high-precision timing module. DETAILED DESCRIPTION
[0023] The following is a further detailed description through specific implementation methods:
[0024] The reference numerals in the drawings of the specification include: a unit thermal battery 1, a pole 2, a micro control system PCB board 3, a battery housing 4, a cover plate 5, and an insulating and heat-insulating adhesive 6.
[0025] The embodiment is basically as shown in the attached Figure 1 , Figure 2 , Figure 3 and Figure 4 Shown: A thermal battery with high integration, adaptive temperature and high activation time accuracy:
[0026] The thermal battery is composed of one or more unit thermal batteries 1 and a micro-control system PCB board 3;
[0027] The micro-control system PCB board 3 is mechanically connected to the thermal battery (see Figure 1 , Figure 2 ): The micro-control system PCB board 3 and the unit thermal battery 1 are mechanically connected in a structural and functional integrated manner. The micro-control system PCB board 3 uses the structural parts of the unit thermal battery 1 as the shell; when the thermal battery is small in size and has a short working time, it is used Figure 1In the arrangement shown, the battery housing 4 is placed above the unit thermal battery 1, and the pole 2 and the micro-control system PCB board 3 are placed in the battery housing 4. The electrical connection adopts the pole 2 passing through the micro-control system PCB board 3, directly welding with the board body, and then covering with the cover plate 5; when the thermal battery is large in size or has a long working time, the battery housing 4 is placed above the unit thermal battery 1, and the insulating heat-insulating glue 6 is placed in the battery housing 4. The pole 2 is connected to the unit thermal battery 1, and the cover plate 5 is covered. The micro-control system PCB board 3 is placed above the cover plate 5, and the electrical connection adopts the flying wire and the board card indirect welding method; when the thermal battery is large in size or has a long working time, it is adopted Figure 2 Arrangement shown;
[0028] The micro-control system PCB board 3 is electrically connected to the thermal battery (see Figure 1 , Figure 2 ): Figure 1 The electrical connection adopts the method of directly welding the pole 2 through the board and the board. Figure 2 The electrical connection adopts the method of indirect welding of flying wires and boards;
[0029] Micro control system PCB board 3 (see Figure 3 ) is mainly composed of energy storage module, temperature compensation module, high-precision timing module and output control module, and two working modes can be selected according to the working conditions.
[0030] Working mode 1: The energy storage module works normally, and the temperature compensation module is disconnected (not working). This working mode is only applicable to thermal batteries with electrical activation, and has high activation accuracy. Its working principle is as follows: the external activation power supply charges the energy storage module of the micro-control system PCB board 3 while activating the thermal battery (after the thermal battery is activated and built up to 1.5V, the thermal battery has the ability to supply power to the micro-control system PCB board 3, and relays the power supply to the micro-control system PCB board 3). The activation signal of the thermal battery is synchronized with the power-on signal of the micro-control system PCB board 3 (at the same time). The power-on working time of the micro-control system PCB board 3 is used as the thermal battery activation zero point, and the fixed timing time is output to the outside. The fixed timing time must be greater than the activation time of the thermal battery under low temperature, normal temperature and high temperature conditions. The high-precision timing module starts the countdown function. When the countdown ends, the output control module works, closes the thermal battery output circuit, and the thermal battery outputs electrical energy to the outside.
[0031] Working mode 2: The temperature compensation module works normally, and the energy storage module is disconnected (not working). This working mode is applicable to thermal batteries of any activation method, and its accuracy is slightly lower than that of working mode 1. Its working principle is: the thermal battery is used to build up the voltage to 1.5V and then power is supplied to the micro-control system PCB board 3. Since the time from the activation of the thermal battery to the voltage building to 1.5V is different under different temperature conditions, it is impossible to accurately collect the thermal battery activation zero point. The temperature value collected by the temperature compensation module is used to compensate for the time interval. The time data from the activation of the thermal battery to the voltage building to 1.5V under different temperature conditions is obtained by experiment. The time compensation value is obtained by table lookup method in actual use. The compensation timing time = fixed timing time - time compensation value under different temperature conditions. The fixed timing time must be slightly longer than the activation time of the thermal battery under low temperature, normal temperature and high temperature conditions. When working, the micro-control system PCB board 3 is powered on to collect the temperature of the thermal battery and then revise the compensation timing time. When the compensation timing time ends, the output control module works, closes the thermal battery output circuit, and the thermal battery outputs electrical energy to the outside.
[0032] The energy storage module of the micro-control system PCB board 3 is mainly composed of film capacitors in parallel;
[0033] The temperature compensation module of the micro-control system PCB board 3 is composed of a temperature sensor and AD acquisition;
[0034] High-precision timing module of micro-control system PCB board 3 (see Figure 4 ) It adopts the smallest system single chip microcomputer, the activation time accuracy can be designed according to the use requirements, the activation time can be modified by software, and the activation time of the thermal battery at different temperatures must be included;
[0035] The output control module of the micro-control system PCB board 3 can select and control the thermal battery output positive line, negative line or positive and negative lines according to the usage scenario.
[0036] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery, characterized in that: The system comprises one or more thermal batteries and a micro control system, wherein the micro control system is mechanically connected to the thermal battery.
2. A highly integrated, temperature-adaptive, and highly accurate thermal battery according to claim 1, characterized in that: The micro control system is electrically connected to the thermal battery.
3. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery according to claim 2, characterized in that: The micro-control system is mainly composed of an energy storage module, a temperature compensation module, a high-precision timing module, and an output control module. The high-precision timing module is bidirectionally electrically connected to the energy storage module, the temperature compensation module, and the output control module.
4. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery according to claim 3, characterized in that: The energy storage module of the micro-control system is mainly composed of film capacitors connected in parallel.
5. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery according to claim 4, characterized in that: The temperature compensation module of the micro-control system is composed of a temperature sensor and AD acquisition.
6. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery according to claim 5, characterized in that: The high-precision timing module of the micro-control system is composed of a minimum system single-chip microcomputer. The activation time accuracy can be designed according to usage requirements. The activation time can be modified by software and must include the activation time of the thermal battery at different temperatures.
7. A highly integrated, temperature-adaptive, and highly accurate activation time thermal battery according to claim 6, characterized in that: The output control module of the micro-control system can selectively control the output positive line, negative line, or positive and negative lines of the thermal battery according to the usage scenario.