A vehicle emergency starting power supply

Abstract

The utility model discloses a kind of vehicle emergency starting power supply, it is related to battery technical field, including the battery module consisting of seven single cell batteries in series, single cell battery is high rate lithium battery, the top of each single cell battery is equipped with first cell pole and second cell pole, the same side pole of adjacent single cell battery is selectively conductive connection by parallel connection copper bar connection, and parallel connection copper bar is equipped with insulating fixing between single cell battery top, insulating fixing is respectively fixed with single cell battery and parallel connection copper bar;In the utility model, by using seven strings high rate ningde times three lithium cell, high rate characteristic can stably provide the momentary large current required by high compression ratio military vehicle of large displacement, and can guarantee current continuous output, solve the problem that ordinary emergency power supply nominal peak current is high but duration is short, to military vehicle, and the problem that force is not satisfied, avoid affecting army task development at critical moment.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a vehicle emergency starting power supply. Background Technology

[0002] Vehicle emergency jump starters, as auxiliary starting devices when vehicle batteries are depleted, are widely used in both civilian and military fields. Their core function is to release electrical energy through their own energy storage unit to drive the vehicle starter motor to start the engine. In the military field, the vehicles equipped by the troops are mostly large-displacement, high-compression-ratio models. The instantaneous current demand of these vehicles when starting is much higher than that of ordinary civilian vehicles. At the same time, the military exercises and training missions are becoming increasingly frequent, and vehicles are exposed to harsh outdoor environments for a long time. Batteries are susceptible to performance degradation or damage due to factors such as low temperature, vibration, and humidity, resulting in frequent situations where the battery is depleted and difficult to start. Therefore, the demand for reliable emergency starting devices is particularly urgent.

[0003] Existing emergency jump starters for ordinary vehicles suffer from numerous compatibility defects. For example, their performance and capacity are often falsely advertised, and the actual continuous output time of the nominal peak current is extremely short, failing to meet the continuous high current requirements of large-displacement, high-compression-ratio military vehicles. This can easily lead to starting failures at critical moments, affecting troop operations. Furthermore, they have poor low-temperature adaptability; in low-temperature environments in the field, the activity of the energy storage unit decreases significantly, and the discharge capacity drops sharply, making effective starting difficult. They also have limited lifespans, with energy storage performance rapidly declining after multiple uses, limiting the number of uses and making them unsuitable for the high-frequency mission requirements of the military. In addition, they lack adequate safety protection, lacking reliable protection mechanisms for military scenarios. During wiring operations or use in harsh environments, reverse connection, overcurrent, and other factors can easily cause equipment damage or even safety risks. Moreover, they do not have a battery potential activation function, so they cannot play an auxiliary starting role when the vehicle battery is severely depleted.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a vehicle emergency starting power supply to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a vehicle emergency starting power supply, including a battery module composed of seven individual battery cells connected in series. The individual battery cells are high-rate lithium batteries. Each individual battery cell has a first battery cell terminal and a second battery cell terminal on its top. The terminals on the same side of adjacent individual battery cells are selectively conductively connected by a parallel connecting copper busbar. An insulating fixing component is provided between the parallel connecting copper busbar and the top of the individual battery cell. The insulating fixing component is fixed to the individual battery cell and the parallel connecting copper busbar respectively. Each individual battery cell also has a battery cell observation window on its top.

[0007] Furthermore, it includes a circuit protection board, which integrates an equalization circuit, a current sensor, and a voltage sampling circuit. The equalization current of the equalization circuit is 100mA. The circuit protection board is electrically connected to the first and second cell terminals of the battery module.

[0008] Furthermore, the parallel connecting copper busbar is made of pure copper and has an anti-oxidation layer plated on its surface. The copper busbar has connection holes that are compatible with the first and second battery cell terminals.

[0009] Furthermore, the insulating fastener is a high-temperature resistant epoxy board with a thickness of 0.8-1.2mm. The insulating fastener has a through hole for the pole post to pass through, and the inner wall of the through hole is provided with a wear-resistant insulating sleeve.

[0010] Furthermore, it includes a control module containing an integrated MOSFET that is electrically connected to the output of the battery module to realize voltage conversion and charge / discharge logic control, supporting a maximum peak output of 500A.

[0011] Furthermore, it includes a charging input interface and an electronic control output interface. The charging input interface supports a maximum input of 29.4V and 17A, and the electronic control output interface is equipped with a reverse connection alarm unit, which is electrically connected to the control module.

[0012] Furthermore, the cell observation window is a circular transparent structure with a diameter of 8-12mm, made of polycarbonate material resistant to electrolyte corrosion, and its edges are sealed to the top shell of the individual cell with sealant.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By utilizing seven high-rate CATL ternary lithium battery cells, the high-rate characteristic can stably provide the instantaneous large current required by large-displacement, high-compression-ratio military vehicles, and can ensure continuous current output. This solves the problem that ordinary emergency power supplies have high nominal peak current but short duration and are insufficient for military vehicles, thus avoiding affecting the troops' mission at critical moments.

[0014] 2. Relying on the excellent low-temperature performance of ternary lithium battery cells, it can still maintain good discharge activity in the harsh outdoor environment where vehicles are exposed for a long time, effectively improving the shortcomings of poor low-temperature performance of ordinary emergency power supplies and ensuring the reliability of starting under extreme conditions such as low temperature.

[0015] 3. The high-rate ternary lithium battery cells have excellent cycle performance. Compared with the limited number of uses of ordinary emergency power supplies, they can withstand the high-frequency use requirements of military exercises and training, reducing the trouble of frequent equipment replacement and lowering the cost of use. Attached Figure Description

[0016] Figure 1 A top view of a vehicle emergency jump starter; Figure 2 A schematic diagram of the overall structure of a vehicle emergency jump starter; Figure 3 This is a front view diagram of a vehicle emergency jump starter. Figure 4 This is a side view of a vehicle emergency jump starter.

[0017] In the diagram: 1. Individual battery cell; 2. First battery cell terminal; 3. Second battery cell terminal; 4. Parallel connecting copper busbar; 5. Insulating fastener; 6. Battery cell observation window. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a vehicle emergency jump starter, comprising a battery module consisting of seven individual battery cells 1 connected in series. Each individual battery cell 1 is a high-rate lithium battery. The seven individual cells 1 are arranged sequentially in a straight line, and the total voltage after series connection reaches 29.4V. This provides a base voltage for subsequent voltage conversion and, through the characteristics of its high-rate lithium battery, provides power support for instantly releasing a large current to drive the starter motor. It also supports 7A continuous discharge to meet the continuous power supply requirements during vehicle startup. Each individual battery cell 1 has a first cell terminal 2 and a second cell terminal 3 on its top. The first cell terminal 2 and the second cell terminal 3 serve as direct interfaces for high-current transmission, maintaining low contact resistance under instantaneous high current and reducing energy consumption. To minimize losses, the first cell terminal 2 and the second cell terminal 3 are designed separately to avoid short-circuit risks. The terminals on the same side of adjacent individual cells 1 are selectively connected by a parallel connecting copper busbar 4. An insulating fixing component 5 is provided between the parallel connecting copper busbar 4 and the top of the individual cell 1. The insulating fixing component 5 is fixed to the individual cell 1 and the parallel connecting copper busbar 4 respectively. Each individual cell 1 also has a cell observation window 6 on its top. The total voltage of the battery module is 29.4V, supporting 7A continuous discharge. The parallel connecting copper busbar 4 is made of copper, and the surface anti-oxidation treatment can reduce the increase of contact resistance during long-term use and ensure current transmission efficiency. The rigid structure design improves connection stability, avoids poor contact under vibration or high temperature environment, and ensures continuous output of large current during startup.

[0020] See Figure 1 , Figure 2It also includes a circuit protection board, which integrates an equalization circuit, a current sensor, and a voltage sampling circuit. The equalization current of the equalization circuit is 100mA. The circuit protection board is electrically connected to the first cell terminal 2 and the second cell terminal 3 of the battery module. It can directly acquire the electrical signals of each individual cell 1, providing a precise connection path for subsequent monitoring and protection functions, ensuring that the protection mechanism can respond to the cell status in real time. The integrated equalization circuit can adjust the voltage difference of each individual cell 1, balance the consistency of the state between cells, and avoid the performance of the entire battery module being affected by overcharging or undercharging of some individual cells 1, thus extending the battery module's lifespan. The overall lifespan of the group is extended by the current sensor, which can monitor the charging and discharging current through the first cell terminal 2 and the second cell terminal 3 in real time, promptly capturing abnormal currents to provide a basis for triggering the protection mechanism and preventing damage to individual cells 1 or external devices caused by abnormal currents. The voltage sampling circuit can track the voltage status of each individual cell 1 in real time to facilitate timely detection of voltage abnormalities. In conjunction with the protection logic, it can cut off the output or alarm to avoid damage to individual cells 1 due to voltage abnormalities. The circuit protection board integrates the equalization circuit, current sensor and voltage sampling circuit to form an integrated protection system. Compared with the distributed design, it can respond more quickly to the state changes of individual cells 1, improve the timeliness and accuracy of protection, and enhance the overall safety and stability of the power supply.

[0021] See Figures 1-4 The parallel connecting copper busbar 4 is made of pure copper with an anti-oxidation layer plated on its surface. The copper busbar has connection holes that are compatible with the first battery cell terminal 2 and the second battery cell terminal 3. The pure copper material has excellent conductivity, which can efficiently conduct the current between the first battery cell terminal 2 and the second battery cell terminal 3, reduce the loss in the power transmission process, and ensure the current transmission efficiency. The anti-oxidation layer plated on the surface can effectively prevent the copper busbar from being oxidized and corroded, avoid the formation of an oxide layer on the surface after long-term use, which would lead to a decrease in conductivity, and maintain the stability of the connection between the copper busbar and the first battery cell terminal 2 and the second battery cell terminal 3.

[0022] See Figures 1-4 The insulating fastener 5 is made of high-temperature resistant epoxy board with a thickness of 0.8-1.2mm. It can effectively isolate the electrical path between the parallel connecting copper busbar 4 and the housing and copper busbar of the single cell 1, prevent short circuit risk, and ensure the electrical safety of the battery module. The insulating fastener 5 is provided with through holes for the electrode post to pass through, and the inner wall of the through hole is provided with a wear-resistant insulating sleeve. The high temperature resistance allows the insulating fastener 5 to adapt to the temperature changes during power supply operation, avoid the decrease in insulation performance due to high temperature, maintain a long-term stable insulation effect, and adapt to the wide temperature range working scenarios of the power supply.

[0023] See Figures 1-4It includes a control module containing an integrated MOSFET that is electrically connected to the output of the battery module. The MOSFET is used to realize voltage conversion and charge / discharge logic control, and supports a maximum peak output of 500A. The integrated MOSFET in the control module has efficient switching characteristics. After being electrically connected to the output of the battery module, it can quickly realize voltage conversion, accurately adapt to the voltage required by the vehicle, and ensure compatibility with the vehicle's electrical system.

[0024] See Figures 1-4 It includes a charging input interface and an electronic control output interface. The charging input interface supports a maximum input of 29.4V and 17A. The electronic control output interface is equipped with a reverse connection alarm unit, which is electrically connected to the control module to ensure stable and efficient charging and avoid affecting battery performance due to input mismatch. The reverse connection alarm unit of the electronic control output interface is electrically connected to the control module and can detect the connection status of the output terminal in real time. When a reverse connection occurs, it can respond in time, remind the user through an alarm, and cooperate with the control module to take protective measures to prevent damage to the power supply or vehicle circuit caused by reverse connection.

[0025] Working principle: Seven high-rate individual cells 1 are connected in series to form a battery module with a total voltage of 29.4V. As the core energy storage unit, it provides the power basis for the instantaneous release of large current by the starter motor based on the high-rate characteristics. At the same time, it supports continuous discharge to meet the continuous power supply requirements during startup. The first cell terminal 2 and the second cell terminal 3 are conductive interfaces. They are connected in parallel with copper busbar 4 made of copper with an anti-oxidation layer to achieve low loss and stable transmission of current between cells and ensure high current conduction efficiency. The insulating fastener 5 realizes electrical isolation and structural fixation, prevents short circuits and adapts to wide temperature range working scenarios, and ensures circuit safety. The cell observation window 6 can help monitor the internal status of the cell and provide intuitive basis for power supply maintenance.

[0026] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vehicle emergency starting power supply, comprising a battery module consisting of seven individual battery cells (1) connected in series, characterized in that: The single cell (1) is a high-rate lithium battery. Each single cell (1) has a first cell terminal (2) and a second cell terminal (3) on its top. The terminals on the same side of adjacent single cells (1) are selectively connected by a parallel connecting copper busbar (4). An insulating fixing member (5) is provided between the parallel connecting copper busbar (4) and the top of the single cell (1). The insulating fixing member (5) is fixed to the single cell (1) and the parallel connecting copper busbar (4) respectively. Each single cell (1) also has a cell observation window (6) on its top.

2. A vehicle emergency starting power supply as described in claim 1, comprising a circuit protection board, wherein the circuit protection board integrates an equalization circuit, a current sensor, and a voltage sampling circuit, characterized in that: The equalization current of the equalization circuit is 100mA, and the circuit protection board is electrically connected to the first cell terminal (2) and the second cell terminal (3) of the battery module.

3. A vehicle emergency jump starter as described in claim 2, characterized in that: The parallel connecting copper busbar (4) is made of copper and has an anti-oxidation layer on its surface. The copper busbar has connection holes that are compatible with the first battery cell terminal (2) and the second battery cell terminal (3).

4. A vehicle emergency jump starter as described in claim 3, characterized in that: The insulating fastener (5) is a high-temperature resistant epoxy board with a thickness of 0.8-1.2mm. The insulating fastener (5) is provided with a through hole for the pole post to pass through, and the inner wall of the through hole is provided with a wear-resistant insulating sleeve.

5. A vehicle emergency starting power supply as described in claim 4, comprising a control module, wherein the control module includes an integrated MOSFET, characterized in that: The MOSFET is electrically connected to the output terminal of the battery module to realize voltage conversion and charge / discharge logic control, and supports a maximum peak output of 500A.

6. A vehicle emergency jump starter as described in claim 5, comprising a charging input interface and an electronic control output interface, characterized in that: The charging input interface supports a maximum input of 29.4V and 17A. The electronic control output interface is equipped with a reverse connection alarm unit, which is electrically connected to the control module.

7. A vehicle emergency jump starter as described in claim 6, characterized in that: The cell observation window (6) is a circular transparent structure with a diameter of 8-12mm. It is made of polycarbonate material that is resistant to electrolyte corrosion, and its edge is sealed to the top shell of the single cell (1) with sealant.

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