Explosion-proof valve with sensing monitoring function

Abstract

An anti-explosion valve with a sensing monitoring function comprises a valve body, a valve element and a connecting rod. An inner cavity and an exhaust hole are formed in the valve body, the inner cavity comprises a pressure relief part and a guide part, the valve element is located in the pressure relief part, a sealing ring is arranged at the contact position of the valve element and the pressure relief part, the connecting rod penetrates through the guide part and is connected with the valve element, and a spring is arranged between the bottom of the valve body and the tail end of the connecting rod. The sensor module is arranged on the connecting rod or the valve body. The sensor module is arranged in the connecting rod, the environment in the battery box can be monitored in real time, the circuit board feeds detected data back to the alarm system, the alarm system can respond in time when the battery is abnormal, and therefore the safety of an automobile is improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof valves, and in particular to an explosion-proof valve with sensor monitoring. Background Technology

[0002] As the new energy vehicle market expands, their electrical safety performance is gradually becoming a focus of consumer attention. The battery system is a key component of new energy vehicles. The battery system typically houses the battery within a casing, separating it from other components and providing a relatively stable charging and discharging environment for the battery.

[0003] However, this also places the battery in a relatively enclosed environment, increasing the difficulty of monitoring it and affecting the response speed of the alarm system in the event of battery thermal runaway. Furthermore, the same problem exists in energy storage devices and equipment containing electrical enclosures. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an explosion-proof valve with sensor monitoring, which can monitor the internal changes of the battery system in real time, improve the response speed of the alarm system, and relieve pressure when the battery is in thermal runaway, thereby improving the safety of the automotive battery system.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An explosion-proof valve with sensor monitoring includes: a valve body, a valve core, a connecting rod, a circuit board, and a sensor module;

[0007] The valve body has an inner cavity and an exhaust port. The inner cavity includes a pressure relief part and a guide part. The valve core is located in the pressure relief part. A sealing ring is provided at the contact position between the valve core and the pressure relief part. The connecting rod passes through the guide part and is connected to the valve core. A spring is provided between the bottom of the valve body and the end of the connecting rod.

[0008] The sensor module is mounted on the connecting rod or the valve body, and the sensor module is electrically connected to the circuit board.

[0009] In one embodiment, the sensor module includes a pressure sensor, a temperature sensor, and a humidity sensor.

[0010] In one embodiment, the connecting rod includes a rod body and a cover. The rod body has a communicating notch and a wiring hole. The cover is used to cover the notch. The circuit board is disposed in the notch, and the sensor module is disposed on the circuit board. The rod body also has a through hole that communicates with the notch and faces the sensor module. The notch is located on the side of the rod body, and the part of the rod body containing the through hole is located outside the valve body.

[0011] In one embodiment, the cap has a U-shaped cross-section.

[0012] In one embodiment, the cover is provided with a positioning pin, and the rod body is provided with an insertion hole that matches the positioning pin.

[0013] In one embodiment, the rod body is threadedly connected to the valve core.

[0014] In one embodiment, the rod body is provided with a wrench position.

[0015] In one embodiment, the cross-section of the inner cavity is T-shaped, and the diameter of the pressure relief part is larger than the diameter of the guide part.

[0016] In one embodiment, a mating terminal is provided on the circuit board near the wiring hole.

[0017] In one embodiment, a nameplate is provided on the end of the valve core away from the connecting rod.

[0018] The explosion-proof valve with sensor monitoring described above has the following beneficial effects:

[0019] 1. The connecting rod is equipped with a sensor module that can monitor the environment inside the battery box in real time. The circuit board feeds back the detected data to the alarm system, enabling it to respond promptly when the battery is abnormal, thereby improving the safety of the vehicle.

[0020] 2. The valve body, valve core, and spring work together to form an elastic opening and closing mechanism. The pressure generated by the battery thermal runaway pushes open the valve core, and the gas is discharged outward through the valve body to relieve pressure, prevent the battery box from exploding, and slow down the rate of battery thermal runaway. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an explosion-proof valve with sensor monitoring.

[0023] Figure 2 This is a schematic diagram showing the fit between the connecting rod and the valve body;

[0024] Figure 3 This is a schematic diagram showing the disassembly of an explosion-proof valve with sensor monitoring.

[0025] Figure 4 This is a schematic diagram of the cross-section of an explosion-proof valve with sensor monitoring.

[0026] Figure 5 This is a schematic diagram showing the connection between the connecting rod and the valve core;

[0027] Figure 6 This is a breakdown diagram of the connecting rod;

[0028] Figure 7 This is a schematic diagram of the cross-section of the valve body. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figure 1 An explosion-proof valve 10 with sensor monitoring includes: valve body 100, valve core 200, connecting rod 300, circuit board 330 and sensor module 340.

[0033] Please see Figure 4 and Figure 7The valve body 100 has an inner cavity 110 and an exhaust port 120. The inner cavity 110 includes a pressure relief part 111 and a guide part 112. The valve core 200 is located in the pressure relief part 111. A sealing ring 400 is provided at the contact position between the valve core 200 and the pressure relief part 111. The connecting rod 300 passes through the guide part 112 and is connected to the valve core 200. Preferably, the cross-section of the inner cavity 110 is T-shaped, and the diameter of the pressure relief part 111 is larger than the diameter of the guide part 112.

[0034] Please see Figure 2 and Figure 4 A spring 500 is provided between the bottom of the valve body 100 and the end of the connecting rod 300. The spring 500 provides elastic force to push the connecting rod 300, thereby causing the valve core 200 to press the sealing ring 400 to close the valve body 100. When the battery thermally runs away, the gas pressure inside the battery box rises. When the gas pressure exceeds the elastic force provided by the spring 500, the spring 500 contracts, the connecting rod 300 rises along the axis of the guide part 112, the valve core 200 separates from the sealing ring 400, and the explosion-proof valve 10 with sensor monitoring switches from the closed state to the open state. The high-pressure gas inside the battery box can enter the pressure relief part 111 through the exhaust port 120 and be discharged outward.

[0035] The sensor module 340 is mounted on the connecting rod 300 or the valve body 200. The sensor module 340 is electrically connected to the circuit board 330, so that the sensor module 340 is located inside the battery box, as detailed below:

[0036] Example 1:

[0037] Please see Figure 3 and Figure 6 The connecting rod 300 includes a rod body 310, a cover 320, a circuit board 330, and a sensor module 340. The rod body 310 has a notch 311 and a wiring hole 312 that are connected. The cover 320 is used to cover the notch 311. The circuit board 330 is located inside the notch 311, and the sensor module 340 is located on the circuit board 330.

[0038] Please see Figure 5 and Figure 6 The rod body 310 also has a through hole 313, which is connected to the notch 311 and faces the sensor module 340.

[0039] The aforementioned explosion-proof valve 10 with sensor monitoring is installed on the vehicle's battery compartment. After the valve body 100 is fixed to the battery compartment, the valve core 200 faces outward, and the connecting rod 300 extends into the battery compartment. The sensor module 340 is suspended inside the battery compartment to detect environmental data. By adding or removing sensors such as pressure sensors, temperature sensors, and humidity sensors from the sensor module 340 as needed, the temperature, humidity, and pressure inside the battery compartment can be monitored through the sensor module 340.

[0040] The through hole 313 on the pole body 310 is connected to the notch 311, meaning that the notch 311 is actually connected to the inner cavity of the battery box. When the battery thermally runs away, the air pressure, temperature, and humidity inside the notch 311 will also change, which will allow the sensor module 340 located inside the notch 311 to detect the environmental values ​​inside the battery box and feed back the real-time measurement values ​​to the alarm system in the car through the circuit board 330. This allows the alarm system to respond quickly when the battery is abnormal, giving passengers more time to react and thus improving the safety of new energy vehicles.

[0041] Example 2:

[0042] The difference between Embodiment 2 and Embodiment 1 is that the sensor module 340 and the circuit board 330 are mounted on the valve body 100. Both are located on the valve body 100 and extend into the battery box (or device), enabling the sensor module 340 to detect changes in pressure, temperature, and humidity inside the battery box (or device) and to feed back the measurement data to the alarm system through the circuit board 330. If the measurement data exceeds the preset value, the alarm system is triggered to issue an alarm. The sensor module 340 detects the real-time values ​​inside the battery box (or device) and can trigger the alarm system at the first moment of an anomaly, thus improving the response efficiency of the alarm system.

[0043] Please see Figure 3 In one embodiment, the notch 311 is located on the side of the rod 310, and the portion of the rod 310 containing the through hole 313 is located outside the valve body 100. The cover 320 has a U-shaped cross-section. The cover 320 is provided with a positioning pin 321, and the rod 310 has an insertion hole 314 that matches the positioning pin 321. The cover 320 is fixed to the notch 311 by an interference fit between the rod 310 and the insertion hole 314, without the need for additional screws for connection.

[0044] Please see Figure 4 In one embodiment, the rod body 310 is threadedly connected to the valve core 200, and the rod body 310 is provided with a wrench position. During assembly, the valve core 200 is first placed into the pressure relief part 111, then the connecting rod 300 is inserted into the guide part 112, the connecting rod 300 is rotated, and the rod body 310 is clamped with a wrench to assist in locking.

[0045] Please see Figure 6In one embodiment, a mating terminal 331 is provided on the circuit board 330 near the wiring hole 312.

[0046] Please see Figure 5 In one embodiment, a nameplate 210 is provided on the end of the valve core 200 away from the connecting rod 300. The model of the explosion-proof valve 10 with sensor monitoring is determined by the information recorded on the nameplate 210, so as to facilitate replacement during later maintenance.

[0047] The explosion-proof valve 10 with sensor monitoring described above has the following beneficial effects:

[0048] 1. The connecting rod 300 is equipped with a sensor module 340, which can monitor the environment inside the battery box in real time. The circuit board 330 feeds back the detected data to the alarm system, enabling it to respond in time when the battery is abnormal, thereby improving the safety of the vehicle.

[0049] 2. The valve body 100, valve core 200 and spring 500 work together to form an elastic opening and closing structure. The pressure generated by the battery thermal runaway will push open the valve core 200, allowing the gas in the battery box to be discharged outward through the valve body 100, which will quickly relieve pressure, prevent the battery box from exploding and slow down the rate of battery thermal runaway.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An explosion-proof valve with sensor monitoring, characterized in that, include: Valve body, valve core, connecting rod, circuit board, and sensor module; The valve body has an inner cavity and an exhaust port. The inner cavity includes a pressure relief part and a guide part. The valve core is located in the pressure relief part. A sealing ring is provided at the contact position between the valve core and the pressure relief part. The connecting rod passes through the guide part and is connected to the valve core. A spring is provided between the bottom of the valve body and the end of the connecting rod. The sensor module is mounted on the connecting rod or the valve body, and the sensor module is electrically connected to the circuit board.

2. The explosion-proof valve with sensor monitoring according to claim 1, characterized in that, The sensor module includes a pressure sensor, a temperature sensor, and a humidity sensor.

3. The explosion-proof valve with sensor monitoring according to claim 1, characterized in that, The connecting rod includes a rod body and a cover. The rod body has a notch and a wiring hole that are connected to each other. The cover is used to cover the notch. The circuit board is disposed in the notch, and the sensor module is disposed on the circuit board. The rod body also has a through hole that is connected to the notch and faces the sensor module. The notch is located on the side of the rod body, and the part of the rod body containing the through hole is located outside the valve body.

4. The explosion-proof valve with sensor monitoring according to claim 3, characterized in that, The cross-section of the cap is U-shaped.

5. The explosion-proof valve with sensor monitoring according to claim 3, characterized in that, The cover is provided with a positioning pin, and the rod body is provided with a hole that matches the positioning pin.

6. The explosion-proof valve with sensor monitoring according to claim 3, characterized in that, The rod body is threadedly connected to the valve core.

7. The explosion-proof valve with sensor monitoring according to claim 3, characterized in that, The rod is equipped with a wrench position.

8. The explosion-proof valve with sensor monitoring according to claim 1, characterized in that, The cross-section of the inner cavity is T-shaped, and the diameter of the pressure relief part is larger than the diameter of the guide part.

9. The explosion-proof valve with sensor monitoring according to claim 3, characterized in that, The circuit board is provided with a mating terminal near the wiring hole.

10. The explosion-proof valve with sensor monitoring according to claim 1, characterized in that, A nameplate is provided on the end of the valve core away from the connecting rod.

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