Pressure relief and smoke exhaust device and energy storage cabinet

Abstract

The utility model discloses a pressure relief and smoke exhaust device and an energy storage cabinet, the pressure relief and smoke exhaust device is installed on the energy storage cabinet, the pressure relief and smoke exhaust device comprises a main body base, an exhaust hole is formed in the main body base; the cover plate is hinged to one side of the main body base; the exhaust fan is hinged to the other side of the main body base; the pneumatic electric push rods comprise the first pneumatic electric push rod used for driving the exhaust fan to act and the second pneumatic electric push rod used for driving the cover plate to act. According to the novel pressure relief and smoke exhaust device, the pneumatic electric push rod is used for controlling closing and opening between the cover plate and the exhaust hole and between the exhaust fan and the exhaust hole, efficient exhaust and device resetting can be achieved in time, and the safety performance and the sealing performance of the energy storage cabinet are guaranteed. Moreover, when the pressure-relief smoke exhaust device is arranged on the cabinet body of the energy storage system, the pressure-relief smoke exhaust device does not need to occupy too much space of an outer vertical surface, and has the advantages of small size, convenience in installation and attractive appearance.

Description

Technical Field

[0001] The utility model relates to a door pressure relief and smoke exhaust device, in particular to a pressure relief and smoke exhaust device and an energy storage cabinet using the device. Background Art

[0002] As the installed capacity of electrochemical energy storage systems continues to rise, the safety of lithium-ion battery energy storage systems is receiving increasing attention. When a battery cell experiences thermal runaway, a series of chemical reactions in the electrolyte within it produce flammable exhaust gases. These gases are discharged into the energy storage cabinet through the battery pack's explosion-proof valve. There, they accumulate until the pressure limit of the explosion vent plate is reached, at which point they are discharged. However, during this process, any remaining flammable exhaust gases present a constant risk of spontaneous combustion or explosion upon contact with an open flame.

[0003] Current technology typically installs exhaust fans and air inlets on the energy storage system cabinet, with exhaust air being activated by electrically controlling the fan. However, these exhaust fans, which require louvers to achieve waterproofing, are typically large, occupying a significant portion of the energy storage cabinet's exterior, impacting aesthetics. For smaller energy storage cabinets, valves are typically installed on the cabinet, with electromagnetic locks or pressure-controlled covers to promptly open the valve's exhaust vent. However, after opening, these exhaust valves cannot automatically reset and close the vent unless the cover is manually reinstalled. Furthermore, once the vent is open, these valves cannot shield the interior of the energy storage system. If they cannot be reset promptly, the energy storage cabinet can easily be flooded on rainy days, posing a safety hazard.

[0004] Based on the above problems, there is an urgent need for a compact pressure relief and smoke exhaust device that can automatically open and reset and has a rapid smoke exhaust function to reduce manual workload, ensure timely opening and closing, and ensure the safety of the energy storage cabinet. Utility Model Content

[0005] In order to solve the deficiencies of the above technologies, the utility model provides a pressure relief and smoke exhaust device and an energy storage cabinet.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pressure relief and smoke exhaust device, which includes:

[0007] A main body base, wherein an exhaust hole is provided on the main body base;

[0008] A cover plate is hingedly arranged on one side of the main body base;

[0009] An exhaust fan is hingedly arranged on the other side of the main body base;

[0010] Pneumatic push rods are divided into No. 1 pneumatic push rod for driving the exhaust fan and No. 2 pneumatic push rod for driving the cover.

[0011] Preferably, the pressure relief and smoke exhaust device further comprises a No. 1 support member, which is located on the same side of the main body base as the exhaust fan and is fixedly connected to the main body base via a vertically distributed No. 1 connecting rod;

[0012] The No. 1 pneumatic electric push rod is hinged to the exhaust fan and the No. 1 support member at both ends through adapters.

[0013] Preferably, the pressure relief and smoke exhaust device further comprises a second support member, which is located on the same side of the main body base as the cover plate and is fixedly connected to the main body base via a vertically distributed first connecting rod;

[0014] The No. 2 pneumatic electric push rod is hinged to the cover plate and the No. 2 support member at both ends through adapters.

[0015] Preferably, the height of the No. 1 support member relative to the main body base is higher than the height of the No. 2 support member relative to the main body base.

[0016] Preferably, the cover is fixedly connected to the movable hinge, the other side of the movable hinge is locked on the fixing seat, and the fixing seat is vertically fixed on the main body base.

[0017] Preferably, the exhaust fan is fixedly connected to the exhaust fan hinge, the other side of the exhaust fan hinge is locked on the exhaust fan fixing block, and the exhaust fan fixing block is fixed on the main body base.

[0018] Preferably, rainproof louvers are provided on the main body base.

[0019] Preferably, a connecting portion is further provided on the periphery of the main body base.

[0020] As a preferred embodiment, the No. 1 pneumatic electric push rod and the No. 2 pneumatic electric push rod both include an electric push rod, a guide cylinder, and a driving component;

[0021] A pneumatic cavity is provided in the guide cylinder, the electric push rod is telescopically arranged in the pneumatic cavity, and the driving device is integrated on the guide cylinder and is used to drive the electric push rod to move.

[0022] An energy storage cabinet includes a pressure relief and smoke exhaust device. A mounting hole is opened on the cabinet body of the energy storage cabinet, and the pressure relief and smoke exhaust device is arranged at the mounting hole.

[0023] This utility model addresses the technical drawbacks of existing energy storage cabinet pressure relief and smoke exhaust designs, which typically fail to simultaneously address the functional features of efficient smoke exhaust, compact size, and reusability. By designing a new pressure relief and smoke exhaust device, this device uses a pneumatic electric push rod to control the closing and opening of the cover and exhaust holes, and the exhaust fan and exhaust holes. This device can achieve efficient exhaust and reset the device in a timely manner, ensuring the safety and sealing performance of the energy storage cabinet. Furthermore, when installed on the energy storage system cabinet, this pressure relief and smoke exhaust device does not require excessive external facade space, and has the advantages of being compact, easy to install, and aesthetically pleasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an exploded view of the pressure relief and smoke exhaust device of the present invention.

[0025] Figure 2 This is a three-dimensional diagram of the pressure relief and smoke exhaust device of the utility model in a normal state.

[0026] Figure 3 It is a three-dimensional diagram of the pressure relief and smoke exhaust device of the utility model in the smoke exhaust state.

[0027] Figure 4 This is a cross-sectional view of the pressure relief and smoke exhaust device of the utility model in a normal state.

[0028] Figure 5 It is a cross-sectional view of the pressure relief and smoke exhaust device of the utility model in the smoke exhaust state.

[0029] In the figure: 1. Main body base; 11. Exhaust hole; 12. Connecting part; 2. Cover plate; 21. Fixed seat; 22. Movable hinge; 3. Exhaust fan; 31. Exhaust fan fixing block; 32. Exhaust fan hinge; 4a. Pneumatic electric push rod No. 1; 4b. Pneumatic electric push rod No. 2; 41. Electric push rod; 42. Guide cylinder; 43. Air pressure chamber; 44. Driving device; 5a. Connecting rod No. 1; 5b. Connecting rod No. 2; 6a. Support member No. 1; 6b. Support member No. 2; 7. Adapter; 8. Rainproof shutter. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] The embodiment of the first aspect of the present invention provides a pressure relief and smoke exhaust device, such as Figure 1 As shown, an exploded view of the pressure relief and smoke exhaust device of this embodiment is given. The main structural components include: a main body base 1, a cover plate 2, an exhaust fan 3, and a pneumatic electric push rod; among them, the pneumatic electric push rod is divided into a No. 1 pneumatic electric push rod 4a for driving the exhaust fan 3 and a No. 2 pneumatic electric push rod 4b for driving the cover plate 2.

[0032] An exhaust hole 11 is provided on the main body base 1. Figure 2 and Figure 4 As shown, when the cover plate 2 covers the exhaust hole 11, the pressure relief and smoke exhaust device of this embodiment is in a normal (ie closed) state; Figure 3 and Figure 5 As shown, when the exhaust fan 3 covers the exhaust hole 11, the pressure relief and smoke exhaust device of this embodiment is in the smoke exhaust state.

[0033] First, one end of the cover plate 2 is hinged to the main body base 1, so that it can rotate relative to the main body base 1 and close, seal or open the exhaust hole 11. Moreover, when the cover plate 2 covers the exhaust hole 11, the shape of the cover plate 2 and the exhaust hole 11 are both circular and coaxial in the closed state.

[0034] In this embodiment, the specific structure for realizing the hinged connection between the cover plate 2 and the main body base 1 is provided as follows: the cover plate 2 is fixedly connected to the movable hinge 22, the other side of the movable hinge 22 is locked on the fixed seat 21, and the fixed seat 21 is vertically fixed on the main body base 1, thereby connecting the cover plate 2 to the main body base 1. Among them, the movable hinge 22 is a hinge hinge, so that the cover plate 2 can rotate relative to the main body base 1 within a 90° angle range with the movable hinge 22 as the center, so as to realize the closing and opening of the cover plate 2. When the cover plate 2 is closed, the pressure relief and smoke exhaust device is in a sealed state, ensuring the sealing of the cabinet; when the cover plate 2 is opened, the pressure relief and smoke exhaust device allows the combustible gas to be discharged from the cabinet from the exhaust hole 11, ensuring the safety of the cabinet.

[0035] Furthermore, the second pneumatic push rod 4b provides the driving force for closing and opening the cover 2. To support this, a second connecting rod 5b and a second support member 6b are provided. The second support member 6b is located on the same side of the main body base 1 as the cover 2 and is fixedly connected to the main body base 1 via the second connecting rod 5b. Furthermore, the second pneumatic push rod 4b passes through the space defined by the second connecting rod 5b and is hinged at its ends to the cover 2 and the second support member 6b, respectively, via adapters 7.

[0036] Secondly, the other side of the main body base 1, corresponding to one side of the cover plate 2, is equipped with an exhaust fan 3 opening and closing device using the same mechanical structure. Similarly, exhaust fan 3 is hinged to the main body base 1, fixedly connected to exhaust fan hinge 32. The other side of exhaust fan hinge 32 is locked to exhaust fan fixing block 31, which is fixed to the main body base 1.

[0037] The first pneumatic push rod 4a provides the driving force for the exhaust fan 3 to flip. The first support member 6a is located on the same side of the main body base 1 as the exhaust fan 3 and is fixedly connected to the main body base 1 via the first connecting rod 5a. At the same time, the first pneumatic push rod 4a passes through the space separated by the first connecting rod 5a and is hinged at both ends to the exhaust fan 3 and the first support member 6a via adapters 7.

[0038] At this point, the opening and closing device on the exhaust fan side is different from that on the cover side. The height of the No. 1 connecting rod 5a on the exhaust fan 3 side relative to the main base 1 is higher than the No. 2 connecting rod 5b on the cover 2 side to adapt to the height of the exhaust fan 3. In addition, the dimensions of the exhaust fan fixing block 31 and the exhaust fan hinge 32 on the exhaust fan 3 side have also been adjusted to be higher and larger to adapt to the exhaust fan 3. The starting power supply and control circuit of the exhaust fan 3 are connected to the control circuit of the No. 1 pneumatic electric push rod 4a on this side. When the No. 1 pneumatic electric push rod 4a receives the push signal, the exhaust fan 3 starts to exhaust.

[0039] Furthermore, for the first and second pneumatic electric push rods, in addition to the different ranges, both include a guide cylinder 42, in which a pneumatic chamber 43 is provided, and the electric push rod 41 is telescopically arranged in the pneumatic chamber 43. At the same time, the pneumatic electric push rod also includes a drive device 44 for pressurizing and depressurizing the pneumatic chamber 43 and thereby driving the electric push rod 41 to move. The drive device 44 is electrically controlled and integrated into the guide cylinder 42.

[0040] In summary, the specific working process of the pressure relief and smoke exhaust device of this embodiment is as follows:

[0041] The normal status of the pressure relief and smoke exhaust device is as follows: Figure 2 and Figure 4 As shown, the cover 2 is closed, pressed against the main body base 1 and completely covering the exhaust hole 11. At this time, the exhaust fan 3 is in a raised state, vertical to the main body base 1, ensuring the sealing performance of the cabinet exterior.

[0042] When the pressure relief and smoke exhaust device receives the instruction to relieve pressure and exhaust smoke, Figure 3 and Figure 5 As shown in the exhaust state, the No. 2 pneumatic electric push rod 4b on one side of the cover plate 2 receives the opening signal, and the driving device of the No. 2 pneumatic electric push rod 4b is activated, driving its electric push rod to retract into the air pressure chamber. As the electric push rod retracts, the cover plate 2 rotates relative to the main base 1 through the movable hinge 22, and changes from a state of pressing against the main base 1 and completely covering the exhaust hole 11 to a state where one end gradually moves away from the exhaust hole 11. The cover plate 2 stops rotating when it reaches a vertical state; at the same time, the No. 1 pneumatic electric push rod 4a on the side of the exhaust fan 3 receives a closing signal, and the exhaust fan 3 receives a start signal, and the fan rotates. The No. 1 pneumatic electric push rod 4 drives the exhaust fan 3 to rotate relative to the main base 1 through the exhaust fan hinge 32, and changes from a vertical state to a state of pressing against the main base 1. At this time, the airflow outlet of the exhaust fan 3 corresponds to the exhaust hole 11, thereby realizing the rapid deflation function of the exhaust hole 11.

[0043] When the hidden dangers are completely eliminated, just follow the reverse logic to Figure 3 and Figure 5The exhaust status shown is restored to Figure 2 and Figure 4 Normal status shown.

[0044] It should be noted that rain louvers 8 are also provided on the main body base 1. These louvers 8 are fixed to the main body base 1 on the side opposite the cover plate 2. Under normal conditions, the louvers 8, in combination with the cover plate 2, help reduce the ingress of rainwater and dust. Even when the pressure relief and smoke exhaust device is in the exhaust mode, the louvers 8 can still provide a certain degree of rain protection, improving the safety of the energy storage cabinet.

[0045] In addition, a connecting portion 13 is provided on the periphery of the main base 1 . The connecting portion 13 is an extended connecting ear structure, which is used for locking and connecting with the energy storage cabinet.

[0046] In summary, this embodiment provides a pressure relief and smoke exhaust device that, driven alternately by two sets of pneumatic electric push rods, can automatically open and close the device for smoke exhaust, switching between rapid smoke exhaust and conventional sealing. This effectively reduces labor and allows for rapid smoke exhaust when potential safety hazards exist, ensuring the safety of the energy storage cabinet. Furthermore, since the design requirements of traditional watertight louvers do not need to be considered, this pressure relief and smoke exhaust device occupies a smaller cabinet volume, effectively saving space within the energy storage cabinet.

[0047] The embodiment of the second aspect of the present utility model provides an energy storage cabinet, which adopts the pressure relief and smoke exhaust device of the present invention. Several energy storage battery packs are installed in the energy storage cabinet, and the cabinet body is provided with mounting holes. The pressure relief and smoke exhaust device is installed on the corresponding mounting holes for rapid smoke exhaust of the cabinet body. Among them, the pneumatic electric push rods (pneumatic electric push rod No. 1 4a, pneumatic electric push rod No. 2 4b) and the support members (support member No. 1 6a, support member No. 2 6b) are located inside the cabinet body, and the rainproof louvers 8 are located on the outer wall of the cabinet body. A control unit is provided in the cabinet body, which, in combination with detection equipment such as fire sensors, sends a start signal to the pressure relief and smoke exhaust device in a timely manner according to the real-time status in the cabinet body. In particular, in some embodiments, an air inlet is also provided on the cabinet body to enhance the smoke exhaust efficiency of the pressure relief and smoke exhaust device, further reducing the possibility of safety problems in the energy storage cabinet.

[0048] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A pressure relief and smoke exhaust device, characterized in that: It includes: A main body base (1), wherein the main body base (1) is provided with an exhaust hole (11); A cover plate (2), the cover plate (2) being hingedly arranged on one side of the main body base (1); An exhaust fan (3), the exhaust fan (3) being hingedly arranged on the other side of the main body base (1); A pneumatic electric push rod is divided into a pneumatic electric push rod No. 1 (4a) for driving the exhaust fan (3) to move, and a pneumatic electric push rod No. 2 (4b) for driving the cover plate (2) to move.

2. The pressure relief and smoke exhaust device according to claim 1, characterized in that: The pressure relief and smoke exhaust device further comprises a No. 1 support member (6a), wherein the No. 1 support member (6a) and the exhaust fan (3) are located on the same side of the main body base (1) and are fixedly connected to the main body base (1) via a vertically distributed No. 1 connecting rod (5a); The first pneumatic electric push rod (4a) is hingedly connected to the exhaust fan (3) and the first support member (6a) at both ends through adapters (7).

3. The pressure relief and smoke exhaust device according to claim 2, characterized in that: The pressure relief and smoke exhaust device further comprises a No. 2 support member (6b), wherein the No. 2 support member (6b) and the cover plate (2) are located on the same side of the main body base (1) and are fixedly connected to the main body base (1) via a vertically distributed No. 1 connecting rod (5a); The second pneumatic electric push rod (4b) is hinged to the cover plate (2) and the second support member (6b) at both ends via adapters (7).

4. The pressure relief and smoke exhaust device according to claim 3, characterized in that: The height of the No. 1 support member (6a) relative to the main body base (1) is higher than the height of the No. 2 support member (6b) relative to the main body base (1).

5. The pressure relief and smoke exhaust device according to any one of claims 1 to 4, characterized in that: The cover plate (2) is fixedly connected to the movable hinge (22), the other side of the movable hinge (22) is locked on the fixing seat (21), and the fixing seat (21) is vertically fixed on the main body base (1).

6. The pressure relief and smoke exhaust device according to claim 5, characterized in that: The exhaust fan (3) is fixedly connected to the exhaust fan hinge (32), the other side of the exhaust fan hinge (32) is locked on the exhaust fan fixing block (31), and the exhaust fan fixing block (31) is fixed on the main body base (1).

7. The pressure relief and smoke exhaust device according to claim 6, characterized in that: The main body base (1) is provided with rainproof louvers (8).

8. The pressure relief and smoke exhaust device according to claim 7, characterized in that: A connecting portion (13) is also provided on the periphery of the main body base (1).

9. The pressure relief and smoke exhaust device according to claim 1, characterized in that: The first pneumatic electric push rod (4a) and the second pneumatic electric push rod (4b) both include an electric push rod (41), a guide cylinder (42), and a driving device (44); A pneumatic chamber (43) is provided in the guide cylinder (42), and the electric push rod (41) is telescopically arranged in the pneumatic chamber (43). The driving device (44) is integrated on the guide cylinder (42) and is used to drive the electric push rod (41) to move.

10. An energy storage cabinet, characterized in that: It includes the pressure relief and smoke exhaust device according to claim 8, a mounting hole is opened on the cabinet body of the energy storage cabinet, and the pressure relief and smoke exhaust device is arranged at the mounting hole.

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