Battery compartment guard

Abstract

The utility model discloses a battery cabin protection device relates to battery cabin protection technical field, including base and firewall, the firewall is "" type structure fixed on the base, the firewall is located and is opened with two pairs of symmetrical lift grooves on the open side, two pairs of the lift groove in sliding connection have the movable door, install two symmetrical distribution's hydraulic pressure rod on the firewall inner wall, two hydraulic pressure rod's movable end is connected with movable door, the top of firewall and is installed with a pair of rotating seat away from movable door one side, two rotating seat upper rotation connection has the rotating rod, the utility model ventilation and heat dissipation and airtight protection two kinds of contradictory demand are fused as a whole, under normal condition, the fireproof shed is rolled up, and the top is open, and it is favorable to battery cabin ventilation and heat dissipation and equipment hoisting, under the protection state, the fireproof shed is unfolded, and through three firewalls, front movable door and top fireproof shed form physical isolation barrier to battery cabin, and better protection is played to battery cabin.

Description

Technical Field

[0001] This utility model relates to the field of battery compartment protection technology, and in particular to a battery compartment protection device. Background Technology

[0002] With the rapid development of new energy power generation, smart grids and electric vehicle industries, electrochemical energy storage systems, especially energy storage power stations based on lithium-ion batteries, have been deployed and applied on a large scale. However, lithium-ion batteries are at risk of thermal runaway under conditions such as overcharging, short circuits and mechanical abuse, which may cause fires or even explosions. This poses a serious challenge to the safe and stable operation of energy storage systems, especially in battery compartments or battery containers that are centrally located.

[0003] In existing technologies, fixed fireproof partitions are commonly used for fire safety protection of battery compartments: fixed firewalls or fireproof partitions are installed between battery compartments. Although this method can provide a certain fire compartmentation capability, it lacks flexibility and initiative. It cannot quickly physically cover and isolate faulty battery compartments in the early stages of an accident, and the fixed structure affects the ventilation and heat dissipation of the top of the battery compartment, and is also not conducive to the hoisting and maintenance of large battery equipment. Therefore, a battery compartment protection device is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a battery compartment protection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A battery compartment protection device includes a base and a firewall. The firewall is a "U"-shaped structure fixed to the base. Two symmetrical lifting slots are provided on the open side of the firewall, and a movable door is slidably connected within each slot. Two symmetrically distributed hydraulic rods are installed on the inner wall of the firewall, with their movable ends connected to the movable doors. A pair of rotating seats are installed on the top of the firewall, away from the movable doors, with rotating rods rotatably connected to each seat. Two symmetrical and parallel slide rails are installed on the top of the firewall, with a movable plate slidably connected to each rail. A fireproof canopy is wound around the rotating rods, with the other end of the canopy connected to the movable plate. A traction mechanism is provided on the firewall for extending and retracting the fireproof canopy.

[0006] Preferably, the traction mechanism includes two winding machines, which are installed on the inner wall of the firewall on the side away from the movable door. Fixed pulleys are installed on both inner walls of the firewall near the movable door. Two connecting blocks are connected to the bottom of the moving plate. Two pull ropes are connected to the two connecting blocks respectively. The two pull ropes are wound around the two fixed pulleys and then connected to the two winding machines.

[0007] Preferably, a raindrop sensor is provided on the movable plate, and a heat-sensing fire detector is installed on the inner wall of the firewall. Both the raindrop sensor and the heat-sensing fire detector are electrically connected to the control circuit of the winding machine via wires.

[0008] Preferably, an electric heating wire is embedded inside the fireproof shed, and a temperature sensor is installed on the movable plate. The temperature sensor is electrically connected to the electric heating wire and the control circuit of the winding machine through a wire.

[0009] Preferably, a coil spring is provided at the rotatable connection between the rotating rod and the rotating seat.

[0010] Preferably, the movable door is made of galvanized steel sheet.

[0011] Preferably, the movable door has an L-shaped cross-section, with the bend facing the fireproof canopy side.

[0012] Compared with the prior art, the advantages of this utility model are: This utility model integrates the two contradictory needs of ventilation and heat dissipation with airtight protection. Under normal conditions, the fireproof canopy is rolled up and the top is open, which is conducive to ventilation and heat dissipation of the battery compartment and equipment hoisting. Under protective conditions, the fireproof canopy is unfolded, forming a physical isolation barrier for the battery compartment through three firewalls, a front movable door and a top fireproof canopy, which provides good protection for the battery compartment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0015] Figure 3 for Figure 2 The front view.

[0016] In the diagram: 1. Base, 2. Firewall, 3. Movable door, 4. Hydraulic rod, 5. Rotating seat, 6. Rotating rod, 7. Fireproof canopy, 8. Slide rail, 9. Moving plate, 10. Winding machine, 11. Fixed pulley, 12. Pull rope, 13. Connecting block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-3As shown, the battery compartment protection device provided by this utility model mainly consists of a base 1, a firewall 2, a movable door 3, a fireproof canopy 7, and a traction mechanism. The base 1 serves as the installation foundation for the entire device, on which a U-shaped firewall 2 is fixed. The firewall 2 is made of C30 concrete and together with the base 1, it forms a protective area that is closed on three sides and open at the front (open side) and top. The battery compartment is placed in this area.

[0019] On the open side of the firewall 2, two symmetrical vertical lifting channels are provided. The movable door 3 is slidably connected to the lifting channels via pulleys and can move up and down along the channels. Two symmetrically distributed hydraulic rods 4 are installed on the inner wall of the firewall 2. The movable ends of the two hydraulic rods 4 are connected to the movable door 3 to realize the opening and closing of the front of the protected area. The movable door 3 is preferably made of galvanized steel plate to ensure its structural strength and fire resistance. Its cross-section is designed as L-shaped, and the bent edge faces inward (i.e., the side of the fireproof canopy 7) so as to better fit with the edge of the unfolded fireproof canopy 7 and prevent rain and snow from falling in from the gap between the fireproof canopy 7 and the movable door 3.

[0020] In this embodiment, a pair of rotating seats 5 are installed on the top of the firewall 2 and on the side away from the movable door 3. A rotating rod 6 is rotatably connected to the two rotating seats 5. Two symmetrical and parallel slide rails 8 are installed on the top of the firewall 2. A moving plate 9 is slidably connected to the two slide rails 8. A fireproof canopy 7 is wound around the rotating rod 6. The other end of the fireproof canopy 7 is connected to the moving plate 9. A traction mechanism is provided on the firewall 2 for raising and lowering the fireproof canopy 7. The fireproof canopy 7 is made of multi-layer composite flexible fire-resistant material. A coil spring is provided at the rotational connection between the rotating rod 6 and the rotating seat 5 to provide an automatic rewinding torque for the fireproof canopy 7.

[0021] In this embodiment, the traction mechanism includes two winding machines 10. The two winding machines 10 are installed on the inner wall of the firewall 2 on the side away from the movable door 3. Fixed pulleys 11 are installed on both inner walls of the firewall 2 near the movable door 3. Two connecting blocks 13 are connected to the bottom of the moving plate 9. Two pull ropes 12 are connected to the two connecting blocks 13 respectively. The two pull ropes 12 are wound around the two fixed pulleys 11 and connected to the two winding machines 10. When the winding machine 10 rotates forward to wind the rope, the moving plate 9 is pulled forward (towards the movable door 3) by the pull ropes 12, pulling the fireproof canopy 7 out from the rotating rod 6 and unfolding it to cover the entire top. When the winding machine 10 rotates in reverse to release the rope, the fireproof canopy 7 is automatically wound up with the assistance of the coil spring. When the fireproof canopy 7 is wound up in place, there is no obstruction above the entire battery compartment, which facilitates the hoisting and transportation of the battery compartment.

[0022] To achieve automatic control, a rain sensor is installed on the moving plate 9 and a heat fire detector is installed on the inner wall of the firewall 2. Both sensors are electrically connected to the control system of the winding machine 10. When the heat fire detector detects an abnormal increase in the temperature inside the cabin (indicating a fire risk) or the rain sensor detects rain, the control system will immediately instruct the winding machine 10 to rewind the pull rope 12, and the fireproof canopy 7 will quickly unfold.

[0023] In addition, to cope with low temperature and rainy / snowy weather, electric heating wires are also buried inside the fireproof shed 7, and a temperature sensor is installed on the moving plate 9. The temperature sensor is electrically connected to the electric heating wires and the control circuit of the winding machine 10 through wires. When the temperature sensor detects that the ambient temperature is below freezing point, the control system will activate the electric heating wires to heat the fireproof shed 7 at low temperature to prevent rain and snow from freezing on the shed surface and affecting its unfolding and retraction functions and protective effect.

[0024] Working process and its principle: Normal state: The fireproof canopy 7 is rolled up on the rotating rod 6, with the top open to facilitate ventilation and heat dissipation of the battery compartment. When maintenance is required, the hydraulic rod 4 is activated to push the movable door 3 up and open for easy maintenance.

[0025] Rainy weather: After the raindrop sensor detects rain, it controls the winding machine 10 to wind up the pull rope 12, pulls the moving plate 9 forward to slide, so that the fireproof canopy 7 unfolds and covers the entire top of the battery compartment to prevent rainwater from seeping into the battery compartment.

[0026] Fire Status: The heat-sensitive fire detector sends a signal to control the winding machine 10 to rewind the rope 12, which pulls the movable plate 9 forward to unfold the fireproof canopy 7, covering the entire top of the battery compartment. The three firewalls 2, the front movable door 3, and the top fireproof canopy 7 form a physical isolation barrier for the battery compartment, preventing the fire from spreading and affecting the safety of the surrounding battery compartments.

[0027] Low temperature weather conditions: When the temperature sensor detects that the ambient temperature is below freezing, the control system will first control the winding machine 10 to wind up the rope 12 to unfold the fireproof canopy 7, and then start the electric heating wire to heat the fireproof canopy 7 at low temperature to prevent subsequent rain and snow from freezing on the canopy surface and affecting its unfolding and retraction functions and protective effect.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery compartment protection device, characterized in that, Comprising a base (1) and a fire barrier (2), wherein the fire barrier (2) is of a "C"-shaped structure and fixed on the base (1), two symmetrical lifting grooves are opened on the side of the fire barrier (2) at the open end, a movable door (3) is slidably connected between the two lifting grooves, two symmetrically distributed hydraulic rods (4) are mounted on the inner wall of the fire barrier (2), the movable ends of the two hydraulic rods (4) are connected with the movable door (3), a pair of rotating seats (5) are mounted on the top of the fire barrier (2) on the side away from the movable door (3), a rotating rod (6) is rotatably connected to the two rotating seats (5), two symmetrical and parallel slide rails (8) are mounted on the top of the fire barrier (2), a movable plate (9) is slidably connected on the two slide rails (8), a fireproof shed (7) is wound on the rotating rod (6), the other end of the fireproof shed (7) is connected with the movable plate (9), and a traction mechanism is arranged on the fire barrier (2) for retracting and extending the fireproof shed (7).

2. The battery compartment protection device according to claim 1, characterized in that, The traction mechanism comprises two winding machines (10), the two winding machines (10) are mounted on the inner wall of the fire barrier (2) on the side away from the movable door (3), fixed pulleys (11) are mounted on both inner walls of the fire barrier (2) adjacent to the movable door (3), two connecting blocks (13) are connected to the bottom of the movable plate (9), the two connecting blocks (13) are respectively connected with two pull ropes (12), and the two pull ropes (12) are respectively wound around the two fixed pulleys (11) and then connected to the two winding machines (10).

3. A battery compartment protection device according to claim 2, characterized in that, A raindrop sensor is arranged on the movable plate (9), a temperature-sensing fire detector is mounted on the inner wall of the fire barrier (2), and both the raindrop sensor and the temperature-sensing fire detector are electrically connected to the control circuit of the winding machines (10) through wires.

4. A battery compartment protection device according to claim 3, characterized in that, Electric heating wires are embedded in the fireproof shed (7), a temperature sensor is arranged on the movable plate (9), and the temperature sensor is electrically connected to the electric heating wires and the control circuit of the winding machines (10) through wires.

5. A battery compartment protection device according to claim 1, characterized in that, A spiral spring is arranged at the rotational connection between the rotating rod (6) and the rotating seats (5).

6. A battery compartment protection device according to claim 1, characterized in that, The movable door (3) is made of galvanized steel plate.

7. A battery compartment protection device according to claim 1, characterized in that, The cross section of the movable door (3) is L-shaped, and the bent portion faces the side of the fireproof shed (7).

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