Ignition agent starting type puncture valve

Abstract

The utility model relates to the field of valve bodies, in particular to an ignition agent starting type puncture valve which is provided with a gunpowder storage cavity and an ignition assembly which are arranged in a high-pressure generation area. One end of the ignition assembly is electrically connected with the output end of the trigger system, and the other end of the ignition assembly extends into the gunpowder storage cavity; a needle rod and a needle are arranged in the needle moving area; the top structure of the pricking needle rod is attached to the pressure discharging opening of the gunpowder storage cavity. The lower portion of the pricking needle rod extends into the liquid storage area, and a pricking needle is installed at the bottom of the pricking needle rod. The liquid storage area is provided with a penetrating opening, a fire-fighting liquid inlet and a barrier film. A liquid storage area is formed between the penetrating opening and the barrier film; the penetrating opening is formed between the liquid storage area and the pricking needle moving area, and a barrier film is arranged on the other opposite side of the penetrating opening. The liquid outlet area is provided with a liquid outlet and a second pipeline; one end of the second pipeline is connected with one side surface of the barrier film, and the other end is communicated with the liquid outlet; and the liquid outlet is communicated with the atomizing nozzle.

Description

Technical Field

[0001] The utility model belongs to the field of valve bodies, in particular to an ignition agent-activated puncture valve. Background Art

[0002] With the large-scale deployment of new energy storage projects worldwide, the safe operation of battery modules, as core components of energy storage systems, has become crucial to the industry's development. Battery safety not only affects energy storage efficiency and lifespan but is also directly linked to human safety and environmental protection. In this context, the fire safety of battery modules is particularly prominent, particularly regarding how to effectively prevent and control fires caused by thermal runaway. As a crucial battery safety feature, the puncture valve is gaining increasing attention.

[0003] The puncture valve, also known as the explosion-proof valve, is mainly installed on the battery cell or battery pack. Its design purpose is to respond quickly when the internal pressure of the battery rises abnormally, and to release the internal high-pressure gas by automatically opening, thereby preventing the battery shell from rupturing or exploding.

[0004] Existing puncture valves typically have a fixed opening pressure threshold, which means they can accidentally trigger before the pressure reaches a truly dangerous level or fail to open when needed. A single threshold has limited applicability for different application scenarios and battery types, necessitating a more flexible and precise adjustment mechanism. Utility Model Content

[0005] The utility model provides an ignition agent activated puncture valve to solve the above-mentioned problems.

[0006] To solve the above problems, the present invention provides the following technical solutions: an ignition agent activated puncture valve, comprising a valve body, wherein the valve body is provided with a high pressure generating area, a puncture needle active area, a liquid storage area and a liquid outlet area;

[0007] A gunpowder storage chamber and an ignition assembly are provided in the high-voltage generating area; one end of the ignition assembly is electrically connected to the output end of the trigger system, and the other end of the ignition assembly extends into the gunpowder storage chamber;

[0008] The needle active area is provided with a needle rod and a needle; the top structure of the needle rod is in contact with the pressure relief port of the gunpowder storage chamber; the lower part of the needle rod extends into the liquid storage area, and the needle is installed at the bottom of the needle rod;

[0009] The liquid storage area is provided with a through-hole, a fire-fighting liquid inlet and a barrier film; a liquid storage area is formed between the through-hole and the barrier film; the through-hole is provided between the liquid storage area and the needle active area, and the barrier film is provided on the other side of the through-hole;

[0010] The liquid outlet area is provided with a liquid outlet and a second pipe; one end of the second pipe is connected to a side surface of the barrier membrane, and the other end of the second pipe is communicated with the liquid outlet; the liquid outlet is communicated with the atomizing nozzle.

[0011] A preferred technical solution: the gunpowder storage chamber is filled with gunpowder; the gunpowder storage chamber is provided with a filling port, a pressure relief port and an ignition port; one end of the ignition assembly contacts the gunpowder through the ignition port; a cover is provided on the filling port; the pressure relief port is fitted with the top of the needle rod, and the firing voltage of the ignition powder is ≤24V.

[0012] A preferred technical solution: the ignition assembly includes a lead and a resistance wire; one end of the resistance wire is electrically connected to the trigger system, the other end of the resistance wire is connected to one end of the lead, and the other end of the lead extends into the interior of the gunpowder.

[0013] A preferred technical solution: the ignition assembly includes a resistance wire, an ignition powder is coated on the outer surface of the resistance wire, one end of the resistance wire is electrically connected to the trigger system, and the other end of the resistance wire extends into the interior of the ignition powder.

[0014] Preferred technical solution; the shape of the pressure relief port matches the shape of the top of the needle rod; a seal is provided between the bottom of the needle rod and the needle, and the specifications and shape of the seal match the specifications and shape of the liquid storage area.

[0015] A preferred technical solution is to provide a reinforcement ring on the inner wall of the through-hole.

[0016] Preferred technical solution: the trigger system includes a power battery and an electric control board, the electric control board is electrically connected to the power battery, and the power battery is electrically connected to the resistance wire.

[0017] The preferred technical solution is that the fire-fighting liquid in the liquid storage area is perfluorohexanone required for use in a PACK-level fire-fighting system.

[0018] Preferred technical solution: A valve seat is further provided between the liquid outlet and the atomizing nozzle, the inlet of the valve seat is connected to the liquid outlet through the second pipe, and the outflow port of the valve seat is connected to the atomizing nozzle; the atomizing nozzle is connected to the battery unit; a plurality of outflow ports of the valve seat are provided, and each of the outflow ports is respectively connected to the corresponding atomizing nozzle through a corresponding number of the second pipes.

[0019] The preferred technical solution is that the number of the valve seats is multiple and integrated, and the number of the corresponding atomizing nozzles and battery units matches the number of the valve seats.

[0020] Compared with the prior art, the advantages of the ignition agent activated puncture valve of the utility model are as follows:

[0021] 1. Compact mechanism, simple structure and reliable action.

[0022] 2. The ignition powder head adopts military standards and has a validity period of more than 10 years, which minimizes maintenance costs.

[0023] 3. Maintenance and replacement are simple and convenient.

[0024] 4. High degree of integration. The valve seat can be made into a single one or multiple ones integrated together, and the outlet is connected to the atomizing nozzle of each battery unit by a pipe.

[0025] 5. Each battery pack unit corresponds to a puncture valve, which can achieve precise extinguishing without affecting the normal operation of other battery packs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments or technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the utility model 1.

[0028] As shown in the above figure: high pressure generating area 1, needle active area 2, liquid storage area 3, liquid outlet area 4, valve body 5; valve seat 6; lead 11; gunpowder storage chamber 12; gunpowder 13; needle rod 21; fire-fighting liquid inlet 31; barrier membrane 32; liquid outlet 41. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "fixed," "integrally formed," "left," "right," and similar expressions used in this specification are for illustrative purposes only. In the drawings, elements with similar structures are indicated by the same reference numerals.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the art of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] Example 1: Figure 1 As shown, the pyrotechnic agent activated puncture valve comprises a valve body 5, wherein the valve body 5 is provided with a high pressure generating area 1, a needle active area 2, a liquid storage area 3 and a liquid outlet area 41;

[0033] The high-voltage generating area 1 is provided with a gunpowder storage chamber 12 and an ignition assembly; one end of the ignition assembly is electrically connected to the output end of the trigger system, and the other end of the ignition assembly extends into the gunpowder storage chamber 12;

[0034] The needle active area 2 is provided with a needle rod 21 and a needle; the top structure of the needle rod 21 is in contact with the pressure relief port of the gunpowder storage chamber 12; the lower part of the needle rod 21 extends into the liquid storage area 3, and the needle is installed at the bottom of the needle rod 21;

[0035] The liquid storage area 3 is provided with a through-hole, a fire-fighting liquid inlet 31 and a barrier film 32; the liquid storage area 3 is formed between the through-hole and the barrier film 32; the through-hole is provided between the liquid storage area 3 and the needle active area 2, and the barrier film 32 is provided on the other side of the through-hole;

[0036] The liquid outlet 41 area 4 is provided with a liquid outlet 41 and a second pipe; one end of the second pipe is connected to a side surface of the barrier membrane 32, and the other end of the second pipe is communicated with the liquid outlet 41; the liquid outlet 41 is communicated with the atomizing nozzle.

[0037] It should be noted that: when the sensor built into any unit battery pack of the energy storage cabinet detects a critical temperature rise or smoke concentration, the trigger system discharges and heats the ignition component, causing the ignition component to ignite the gunpowder 13 in the gunpowder storage chamber 12 and detonate. The high pressure generated by the explosion of the gunpowder 13 pushes the needle rod 21 to move left, piercing the diaphragm through the needle, causing the fire-fighting liquid in the liquid storage area 3 to be ejected from the liquid outlet 41 in the liquid outlet 41 in the area 4, thereby extinguishing the fire in its infancy and ensuring the safety of the energy storage cabinet.

[0038] Example 2: The gunpowder storage chamber 12 is filled with gunpowder 13; the gunpowder storage chamber 12 is provided with a filling port, a pressure relief port and an ignition port; one end of the ignition assembly is in contact with the gunpowder 13 through the ignition port; a cover is provided on the filling port; the pressure relief port is fitted with the top of the needle rod 21, and the firing voltage of the ignition powder is ≤24V.

[0039] It should be noted that a filling port is provided in the gunpowder storage chamber 12 so as to be able to refill the gunpowder storage chamber 12 with gunpowder.

[0040] In order to enhance the pressure generated by the explosion of the gunpowder 13, it is necessary to set a sealing plate at the filling port, and fix the sealing plate to the gunpowder storage chamber 12 by means of fasteners such as screws, bolts or screws; further, one side of the sealing plate adjacent to the inside of the gunpowder storage chamber 12 is covered with an explosion-proof layer formed by an explosion-proof material.

[0041] The purpose of providing a pressure relief port in the gunpowder storage chamber 12 is to provide a vent for the pressure generated by the gunpowder explosion. The pressure is discharged through the vent, thereby applying a thrust to the needle rod 21, thereby pushing the needle rod 21 to move in the needle active area 2, so that the needle on the needle rod 21 punctures the barrier membrane 32.

[0042] Example 3: The ignition assembly has two modes;

[0043] First: the ignition assembly includes a lead 11 and a resistance wire; one end of the resistance wire is electrically connected to the trigger system, the other end of the resistance wire is connected to one end of the lead 11, and the other end of the lead 11 extends into the interior of the gunpowder.

[0044] Second: the ignition assembly includes a resistance wire, an outer surface of which is coated with ignition powder, one end of the resistance wire is electrically connected to the trigger system, and the other end of the resistance wire extends into the interior of the ignition powder.

[0045] It should be noted that the resistance wire is a heating resistance wire; by heating the resistance wire, the gunpowder explodes;

[0046] By coating the resistance wire with ignition powder, firstly, the time of gunpowder explosion can be shortened, and the gunpowder can be detonated in the shortest time, thereby puncturing the structure and puncturing the barrier membrane 32 in the first time, so that the fire-fighting liquid flows from the liquid storage area 3 to the liquid outlet 41 area 4 of the flow channel, and proactive intervention measures are taken for the impending fire; secondly, the safety performance of the gunpowder is improved to reduce the risk of unexpected non-explosion, and the accuracy of the expected explosion is ensured by combining the heating of the resistance wire to trigger the explosion of the gunpowder and the ignition powder on the resistance wire to cause the explosion of the ignition powder.

[0047] Example 4: The stinger active area 2 is provided with a stinger cavity, a stinger rod 21 and a stinger; the cavity of the stinger cavity matches the specifications of the stinger rod 21; the top structure of the stinger rod 21 is consistent with the pressure relief port structure of the gunpowder storage chamber 12; the middle part of the stinger rod 21 is within the stinger active area 2; the lower part of the stinger rod 21 extends into the liquid storage area 3, and the stinger is installed at the bottom of the stinger rod 21.

[0048] It should be noted that: when the gunpowder explodes, the high pressure generated pushes the top of the needle rod 21 from the pressure discharge port, causing the needle rod 21 to move in the needle active area 2 toward the liquid storage area 3. When the needle pierces the barrier membrane 32, the fire-fighting liquid flows from the liquid storage area 3 to the liquid outlet area 41, implementing a pre-emptive preventive strategy to deal with the impending fire hazard.

[0049] Furthermore, in order to prevent the fire-fighting liquid from flowing back from the liquid storage area 3 to the needle active area 2, a seal is provided between the bottom of the needle rod 21 and the needle, and the specifications of the seal match the specifications of the liquid storage area 3; the shape of the seal should be the same as the internal structure of the fire-fighting storage area, and the size of the seal should also be the same as the internal size of the fire-fighting storage area; for example: when the internal structure of the fire-fighting storage area is square, the seal is also square and consistent with the internal size of the fire-fighting storage area; this ensures that when the needle does not pierce the barrier membrane 32, the stored liquid in the fire-fighting storage area will not flow into the needle active area 2 through the gap between the needle rod 21 and the needle cavity, increasing the risk of entering the gunpowder cavity; similarly, when the needle pierces the barrier membrane 32, the excessive thrust of the needle rod 21 will prevent the fire-fighting liquid from flowing out of the liquid outlet 41 area 4 in an instant in the liquid storage area 3, thereby causing the fire-fighting liquid to flow back into the needle active area 2.

[0050] Example 5: Liquid storage area 3: fire liquid inlet 31, barrier membrane 32, through-port; the through-port is arranged between the liquid storage area 3 and the needle active area 2, and a reinforcement ring is arranged on the inner wall of the through-port; a barrier membrane 32 is arranged on the other side of the through-port; a liquid storage area 3 is formed between the through-port and the barrier membrane 32, and the fire liquid inlet 31 is arranged on the valve seat 6, and the fire liquid inlet 31 extends into the liquid storage area 3 through a first pipe; one end of the first pipe is connected to the fire liquid inlet 31, and the other end of the first pipe extends into the liquid storage area 3 and within the active area of ​​the seal.

[0051] It should be noted that: the range of the active area of ​​the seal is: the distance that the needle rod 21 pushes the needle to move in the liquid storage area 3; when the other end of the first pipe of the fire-fighting liquid inlet 31 is not within the active area of ​​the seal, accordingly: in order to prevent the fire-fighting liquid from flowing back into the needle active area 2, the seal on the needle rod 21 is made consistent with the internal structure and size of the fire-fighting storage area, so that the area between the seal and the barrier film 32 is the area where the fire-fighting liquid is stored. Therefore, the other end of the first pipe of the fire-fighting liquid inlet 31 can only be within the active area of ​​the needle.

[0052] Furthermore, by providing a reinforcing ring on the inner wall of the through-hole, it is prevented that when the gunpowder explodes, the pressure generated is too large, thereby preventing the shape of the through-hole from being destroyed, so that the liquid storage area 3 is connected with the needle active area 2, thereby increasing the probability of backflow.

[0053] Example: 6: The trigger system includes a power battery and an electronic control board, the electronic control board is electrically connected to the power battery, and the power battery is electrically connected to the resistance wire; the fire-fighting liquid in the liquid storage area 3 is perfluorohexanone required for use in a PACK-level fire-fighting system; a valve seat 6 is also provided between the liquid outlet 41 and the atomizing nozzle, the inlet of the valve seat 6 is connected to the liquid outlet 41 through the second pipe, and the outflow port of the valve seat 6 is connected to the atomizing nozzle; the atomizing nozzle is connected to the battery unit; the valve seat 6 has a plurality of outflow ports, each of which is connected to the corresponding atomizing nozzle through a corresponding number of the second pipes; the number of the valve seats 6 is a plurality of integrated ones, and the number of the corresponding atomizing nozzles and battery units matches the number of the valve seats 6.

[0054] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the description of the present utility model; and, for ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A pyrotechnic agent activated puncture valve, comprising a valve body, characterized in that: The valve body is provided with a high pressure generating area, a needle active area, a liquid storage area and a liquid outlet area; A gunpowder storage chamber and an ignition assembly are provided in the high-voltage generating area; one end of the ignition assembly is electrically connected to the output end of the trigger system, and the other end of the ignition assembly extends into the gunpowder storage chamber; The needle active area is provided with a needle rod and a needle; the top structure of the needle rod is in contact with the pressure relief port of the gunpowder storage chamber; the lower part of the needle rod extends into the liquid storage area, and the needle is installed at the bottom of the needle rod; The liquid storage area is provided with a through-hole, a fire-fighting liquid inlet and a barrier film; a liquid storage area is formed between the through-hole and the barrier film; the through-hole is provided between the liquid storage area and the needle active area, and the barrier film is provided on the other side of the through-hole; The liquid outlet area is provided with a liquid outlet and a second pipe; one end of the second pipe is connected to a side surface of the barrier membrane, and the other end of the second pipe is communicated with the liquid outlet; the liquid outlet is communicated with the atomizing nozzle.

2. The pyrotechnic agent activated puncture valve according to claim 1, characterized in that: The gunpowder storage chamber is filled with gunpowder; the gunpowder storage chamber is provided with a filling port, a pressure relief port and an ignition port; one end of the ignition assembly is in contact with the gunpowder through the ignition port; a cover plate is provided on the filling port; the pressure relief port is in contact with the top of the needle rod, and the firing voltage of the ignition powder is ≤24V.

3. The pyrotechnic agent activated puncture valve according to claim 2, characterized in that: The ignition assembly includes a lead and a resistance wire; one end of the resistance wire is electrically connected to the trigger system, the other end of the resistance wire is connected to one end of the lead, and the other end of the lead extends into the interior of the gunpowder.

4. The pyrotechnic agent activated puncture valve according to claim 2, characterized in that: The ignition assembly includes a resistance wire, an outer surface of which is coated with ignition powder, one end of the resistance wire is electrically connected to the trigger system, and the other end of the resistance wire extends into the interior of the ignition powder.

5. The pyrotechnic agent activated puncture valve according to claim 2, characterized in that: The shape of the pressure relief port matches the shape of the top of the needle rod; a seal is provided between the bottom of the needle rod and the needle, and the specification and shape of the seal match the specification and shape of the liquid storage area.

6. The pyrotechnic agent activated puncture valve according to claim 1, characterized in that: A reinforcement ring is provided on the inner wall of the through-hole.

7. The pyrotechnic agent activated puncture valve according to claim 1, characterized in that: The trigger system includes a power battery and an electric control board. The electric control board is electrically connected to the power battery, and the power battery is electrically connected to the resistance wire.

8. The pyrotechnic agent activated puncture valve according to claim 1, characterized in that: The fire-fighting liquid in the liquid storage area is perfluorohexanone required for use in a PACK-level fire-fighting system.

9. The pyrotechnic agent activated puncture valve according to claim 1, characterized in that: A valve seat is also provided between the liquid outlet and the atomizing nozzle, the inlet of the valve seat is connected to the liquid outlet through the second pipe, and the outflow port of the valve seat is connected to the atomizing nozzle; the atomizing nozzle is connected to the battery unit; the valve seat is provided with multiple outflow ports, each of which is connected to the corresponding atomizing nozzle through a corresponding number of second pipes.

10. The pyrotechnic agent activated puncture valve according to claim 9, characterized in that: The number of the valve seats is multiple and integrated, and the number of the corresponding atomizing nozzles and battery units matches the number of the valve seats.

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