Battery swapping cabinet and battery swapping cabinet fire extinguishing method

Abstract

The application is suitable for the technical field of battery replacement cabinet, and provides a battery replacement cabinet and a fire extinguishing method of the battery replacement cabinet. The battery replacement cabinet comprises: a cabinet body; a battery compartment arranged on the cabinet body, wherein the battery compartment comprises: a compartment body rotatably arranged in the cabinet body, an accommodating cavity for placing a charging battery is arranged in the compartment body, one end of the compartment body is provided with a compartment opening communicated with the accommodating cavity, and the accommodating cavity is communicated with a cooling liquid device through a pipeline; a valve mechanism arranged on the pipeline and connected with a control device, used for controlling the communication or disconnection of the compartment body and the cooling liquid device; a lock mechanism connected with the control device and used for locking the compartment body in the cabinet body, and the lock mechanism can receive an unlocking signal of the control device to be unlocked, so that the compartment body is turned over and the compartment opening is kept upward. When a fire occurs in the battery compartment, the compartment body can be turned over and the compartment opening is kept upward, so that the compartment body can be filled with cooling liquid to completely immerse the charging battery, the secondary combustion of the charging battery is prevented, and the fire extinguishing effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery swap cabinets, in particular to a battery swap cabinet and a fire extinguishing method of the battery swap cabinet. BACKGROUND

[0002] With the rapid development of take-out and express delivery business, the number of take-out and express delivery orders is increasing, and the main transportation tool of take-out delivery personnel and express delivery personnel is a two-wheeled electric vehicle. By renting lithium batteries for electric vehicles, it is the mainstream solution for current take-out delivery personnel and express delivery personnel. When users rent batteries, in order to enable electric vehicles to replace batteries anytime and anywhere, using a battery swap cabinet to charge lithium batteries is an effective solution.

[0003] In the prior art, the battery swap cabinet usually includes a cabinet body and a plurality of battery compartments arranged in the cabinet body. Each battery compartment is provided with a containing cavity for placing a charged battery in the compartment body, and the compartment body is provided with a compartment opening for loading the charged battery and communicating with the containing cavity. Since the charged battery generates a relatively large amount of heat when charging in the compartment body of the battery compartment, when the charged battery explodes during the charging process and causes a fire, cooling liquid needs to be sprayed into the charged battery in the compartment body for fire extinguishing. However, since the compartment body of the battery compartment needs to be provided with a compartment opening for loading the charged battery, and the battery compartment is fixed in the cabinet body in a horizontal manner, when a fire occurs in the battery compartment, the sprayed cooling liquid in the compartment body will directly flow out of the compartment opening, so that the charged battery cannot be soaked in the cooling liquid, and the charged battery is prone to secondary combustion, which finally causes a serious fire and poor fire extinguishing effect. SUMMARY

[0004] The present application provides a battery swap cabinet, which aims to solve the problem of poor fire extinguishing effect of the battery swap cabinet in the prior art, in which the charged battery is prone to secondary combustion when a fire occurs in the battery compartment.

[0005] The present application is implemented by providing a battery swap cabinet, which comprises:

[0006] a cabinet body;

[0007] a battery compartment arranged in the cabinet body, the battery compartment comprising:

[0008] a compartment body rotatably arranged in the cabinet body, the compartment body being provided with a containing cavity for placing a charged battery, and the compartment body being provided with a compartment opening at one end and communicating with the containing cavity, and the containing cavity being communicated with a cooling liquid device storing cooling liquid through a pipeline;

[0009] a valve mechanism arranged in the pipeline and connected with a control device, for controlling the communication or disconnection of the compartment body and the cooling liquid device;

[0010] A locking mechanism connected to the control device and locking the bin body in the cabinet body; when a fire occurs in the battery bin, the locking mechanism can receive an unlocking signal from the control device to unlock, so that the bin body is overturned and the bin opening is kept upward.

[0011] Preferably, the battery bin further comprises:

[0012] A detection device arranged in the bin body and connected to the control device, for detecting the temperature and / or the concentration of smoke of the bin body.

[0013] Preferably, the battery bin further comprises a rotating shaft arranged in the bin body, and the bin body is rotatably connected to the cabinet body through the rotating shaft, so that the bin body can be overturned around the rotating shaft.

[0014] Preferably, the bin body comprises a plurality of side walls forming the accommodating cavity, and the plurality of side walls are all closed structures.

[0015] Preferably, the bin body comprises a plurality of side walls forming the accommodating cavity, and at least one side wall of the bin body is provided with a heat dissipation hole communicating with the accommodating cavity; the battery bin comprises a sealing plate movably arranged in the bin body and used for sealing the heat dissipation hole; when the bin body is overturned and the bin opening is kept upward, the sealing plate moves downward to seal the heat dissipation hole.

[0016] Preferably, the sealing plate is movably arranged in the bin body, and the sealing plate can move downward to seal the heat dissipation hole.

[0017] Preferably, the sealing plate is rotatably arranged in the bin body, and the sealing plate can rotate downward to seal the heat dissipation hole.

[0018] Preferably, the battery bin further comprises:

[0019] A spring for driving the sealing plate to reset, one end of the spring being connected to the bin body and the other end being connected to the sealing plate.

[0020] Preferably, the bin body is provided with a guide mechanism, the sealing plate and the guide mechanism form a sliding fit, and the sealing plate can move downward along the guide mechanism to seal the heat dissipation hole.

[0021] Preferably, the battery bin further comprises:

[0022] A buffer mechanism fixed to the bin body, the buffer mechanism being in contact with the inner wall surface of the cabinet body when the bin body is overturned and the bin opening is kept upward.

[0023] Preferably, the battery bin further comprises:

[0024] An overflow pipe in communication with the accommodating cavity of the bin body, a communication position of the overflow pipe with the accommodating cavity is arranged close to the bin opening, and the overflow pipe is communicated with the outside through a water outlet channel.

[0025] The application also provides a fire extinguishing method of the battery replacement cabinet, applied to the battery replacement cabinet, comprising:

[0026] When it is judged that the battery compartment is on fire, the lock mechanism is controlled to be unlocked, and the bin body of the battery compartment is overturned to keep the bin opening upward;

[0027] The valve mechanism is controlled to open the valve, so that the cooling liquid in the cooling liquid device enters the bin body of the battery compartment to soak the rechargeable battery in the bin body.

[0028] Preferably, before the step of controlling the lock mechanism to be unlocked when it is judged that the battery compartment is on fire, and the bin body of the battery compartment is overturned to keep the bin opening upward, the method further comprises:

[0029] Detecting the temperature and / or the concentration of smoke of the battery compartment;

[0030] When the temperature of the battery compartment reaches a preset temperature threshold or the concentration of smoke reaches a preset concentration threshold, it is judged that the battery compartment is on fire.

[0031] Preferably, after the step of controlling the valve mechanism to open the valve, so that the cooling liquid in the cooling liquid device enters the bin body of the battery compartment to soak the rechargeable battery in the bin body, the method further comprises:

[0032] When it is detected that the cooling liquid capacity in the bin body reaches a preset minimum water capacity threshold, the valve mechanism is controlled to reduce the flow rate of the cooling liquid in the cooling liquid device into the bin body.

[0033] Preferably, after the step of controlling the valve mechanism to open the valve, so that the cooling liquid in the cooling liquid device enters the bin body of the battery compartment to soak the rechargeable battery in the bin body, the method further comprises:

[0034] When it is detected that the cooling liquid capacity in the bin body reaches a preset maximum water capacity threshold, the valve mechanism is controlled to close the valve.

[0035] The application provides a battery replacement cabinet, which is characterized in that: the cabinet body is provided with a battery compartment, the compartment body of the battery compartment is rotatably arranged in the cabinet body, a valve mechanism for controlling the communication or disconnection of the compartment body and a cooling liquid device is arranged, and a locking mechanism for locking the compartment body in the cabinet body is arranged; when a fire occurs in the battery compartment, the control device controls the locking mechanism to be unlocked, so that the compartment body is turned over under the action of gravity and kept with the compartment opening upward; at the same time, the control device controls the valve mechanism to open the valve, so that the cooling liquid in the cooling liquid device flows into the compartment body of the battery compartment, so that the compartment body is filled with the cooling liquid to completely soak the charging battery, the secondary combustion of the charging battery is prevented, and the fire extinguishing effect is greatly improved; and the structure is simple and the implementation cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A three-dimensional schematic view of a battery replacement cabinet provided for the first embodiment of the application;

[0037] Figure 2 Another three-dimensional schematic view of the battery replacement cabinet provided for the first embodiment of the application;

[0038] Figure 3 A three-dimensional schematic view of a battery compartment of the battery replacement cabinet provided for the first embodiment of the application;

[0039] Figure 4 Another three-dimensional schematic view of the battery compartment of the battery replacement cabinet provided for the first embodiment of the application;

[0040] Figure 5 A structure block diagram of part of the structure of the battery replacement cabinet provided for the first embodiment of the application;

[0041] Figure 6 A three-dimensional schematic view of a battery compartment of the battery replacement cabinet provided for the second embodiment of the application;

[0042] Figure 7 Another three-dimensional schematic view of the battery compartment of the battery replacement cabinet provided for the second embodiment of the application;

[0043] Figure 8 A three-dimensional schematic view of a battery compartment of the battery replacement cabinet provided for the third embodiment of the application;

[0044] Figure 9 Another three-dimensional schematic view of the battery compartment of the battery replacement cabinet provided for the third embodiment of the application;

[0045] Figure 10 A flow chart of a fire extinguishing method of the battery replacement cabinet provided for the fourth embodiment of the application. DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0047] The battery replacement cabinet provided by the embodiment of the present application is characterized in that: the cabinet body is provided with a plurality of battery compartments, each of which is provided with a compartment body rotatable arranged in the cabinet body, a valve mechanism arranged on the pipeline and connected with the control device, and a locking mechanism connected with the control device and used for locking the compartment body in the cabinet body.

[0048] Embodiment one

[0049] Please refer to Figures 1-5 The battery replacement cabinet provided by the embodiment of the present application is characterized in that: the cabinet body is provided with a plurality of battery compartments, each of which is provided with a compartment body rotatable arranged in the cabinet body, a valve mechanism arranged on the pipeline and connected with the control device, and a locking mechanism connected with the control device and used for locking the compartment body in the cabinet body.

[0050] The cabinet body 1;

[0051] The battery compartment 2 arranged in the cabinet body 1, the battery compartment 2 comprising:

[0052] The compartment body 21 rotatable arranged in the cabinet body 1, the compartment body 21 being provided with a containing cavity 211, one end of the compartment body 21 being provided with a compartment opening 212 in communication with the containing cavity 211, and the containing cavity 211 being in communication with the cooling liquid device 3 storing cooling liquid through a pipeline;

[0053] The valve mechanism 22 arranged on the pipeline and connected with the control device 4, used for controlling the compartment body 21 to be in communication or disconnected with the cooling liquid device 3;

[0054] The locking mechanism 23 connected with the control device 4 and used for locking the compartment body 21 in the cabinet body 1, and the locking mechanism 23 being capable of receiving the unlocking signal of the control device 4 to be unlocked, so that the compartment body 21 is turned over and the compartment opening 212 is kept upward.

[0055] In the embodiment of the present application, the specific number of the battery compartments 2 is not limited, which can be one, two or more. Preferably, the number of the battery compartments 2 is multiple, and the multiple battery compartments 2 are arranged in multiple rows and multiple columns in the cabinet body 1. The structure of each battery compartment 2 is completely the same.

[0056] In the embodiment of the present application, the accommodating cavity 211 in the bin body 21 is used for placing the rechargeable battery 210, and the bin opening 212 is used for loading the rechargeable battery 210 into the accommodating cavity 211. The cooling liquid device 3 can be arranged inside the cabinet body 1, or arranged outside the cabinet body 1, or not arranged on the cabinet body 1, that is, the cooling liquid device 3 can be arranged separately from the cabinet body 1.

[0057] As an embodiment of the present application, the battery bin 2 further comprises a rotating shaft 24 arranged on the bin body 21, and the bin body 21 is rotatably connected with the cabinet body 1 through the rotating shaft 24, so that the bin body 21 can be flipped around the rotating shaft 24. The rotating shaft 24 is arranged at the bottom of the battery bin 2. When the battery bin 2 is in a normal state, the battery bin 2 is locked with the bin body 21 through the locking mechanism 23, so that the bin body 21 is in a horizontal state (for example, the battery bin 2 shown on the right side of FIG. 3), ensuring the normal use of the battery bin 2; when the battery bin 2 catches fire, the control device 4 controls the locking mechanism 23 to be unlocked, at this time, the bin body 21 is unbalanced, and the bin body 21 is flipped 90° around the rotating shaft 24 under the action of gravity, so that the bin body 21 is in a vertical state and the bin opening 212 is upward (for example, the battery bin 2 shown on the left side of FIG. 3), so that the accommodating cavity 211 of the bin body 21 can be filled with cooling liquid to completely immerse the rechargeable battery in the bin body 21 for fire extinguishing; and the structure is simple and the implementation cost is low. Figure 1 Figure 1 As an embodiment of the present application, the battery bin 2 further comprises a rotating shaft 24 arranged on the bin body 21, and the bin body 21 is rotatably connected with the cabinet body 1 through the rotating shaft 24, so that the bin body 21 can be flipped around the rotating shaft 24. The rotating shaft 24 is arranged at the bottom of the battery bin 2. When the battery bin 2 is in a normal state, the battery bin 2 is locked with the bin body 21 through the locking mechanism 23, so that the bin body 21 is in a horizontal state (for example, the battery bin 2 shown on the right side of FIG. 3), ensuring the normal use of the battery bin 2; when the battery bin 2 catches fire, the control device 4 controls the locking mechanism 23 to be unlocked, at this time, the bin body 21 is unbalanced, and the bin body 21 is flipped 90° around the rotating shaft 24 under the action of gravity, so that the bin body 21 is in a vertical state and the bin opening 212 is upward (for example, the battery bin 2 shown on the left side of FIG. 3), so that the accommodating cavity 211 of the bin body 21 can be filled with cooling liquid to completely immerse the rechargeable battery in the bin body 21 for fire extinguishing; and the structure is simple and the implementation cost is low.

[0058] As an embodiment of the present application, the bin body 21 comprises a plurality of side walls 213 forming the accommodating cavity 211, and the plurality of side walls 213 are all closed structures.

[0059] In the embodiment, the plurality of side walls 213 of the bin body 21 are all not provided with heat dissipation holes, and the accommodating cavity 211 of the bin body 21 is only connected with the outside through the bin opening 212. When the bin body 21 is flipped and the bin opening 212 is upward, the bin body 21 forms a bag that can hold cooling liquid, and the cooling liquid in the cooling liquid device 3 flows into the accommodating cavity 211 of the bin body 21 through the pipeline and fills the accommodating cavity 211 of the bin body 21, so that the cooling liquid can completely immerse the rechargeable battery in the bin body 21, and the rechargeable battery is effectively extinguished.

[0060] As a preferred embodiment of the present application, the bin body 21 is roughly in a cuboid structure, the bin body 21 is surrounded by five side walls 213, and the five side walls 213 jointly form the accommodating cavity 211. Since the five side walls 213 are all closed structures, the accommodating cavity 211 formed by the five side walls 213 is only connected with the outside through the bin opening 212, and when the bin body 21 is flipped and the bin opening 212 is upward, the bin body 21 can form a bag that can be filled with cooling liquid, so that the cooling liquid can completely immerse the rechargeable battery in the bin body 21 for fire extinguishing.

[0061] As an embodiment of the present application, the battery bin 2 further comprises:​

[0062] The detection device 5 is arranged in the battery compartment 21 and connected with the control device 4, and is used for detecting the temperature of the battery compartment 21 and / or the concentration of smoke.

[0063] In the embodiment, the detection device 5 is a temperature sensor and / or a smoke sensor. Preferably, the detection device 5 is a temperature sensor and a smoke sensor connected with the control device 4 respectively; the temperature sensor and the smoke sensor are respectively used for detecting the temperature of the battery compartment 2 and the concentration of smoke, and the control device 4 judges that the battery compartment 2 has a fire when the temperature reaches a preset temperature threshold or the concentration reaches a preset concentration threshold. The temperature sensor and the smoke sensor are respectively used for detecting the temperature of the battery compartment 2 and the concentration of smoke to judge whether a fire occurs, and the control device 4 judges that the battery compartment 2 has a fire when any one of the temperature of the battery compartment 2 and the concentration of smoke exceeds the threshold, which greatly improves the reliability of the fire.

[0064] In the embodiment, when at least one of the temperature of the battery compartment 2 and the concentration of smoke exceeds the threshold, it is judged that the battery compartment 2 has a fire, at this time the control device 4 sends an unlocking signal to the lock mechanism 23, and the lock mechanism 23 is unlocked when receiving the unlocking signal, so as to release the locking of the battery compartment 21 and the cabinet 1, and the battery compartment 21 is turned over under the action of gravity and keeps the compartment opening 212 upward, at this time the control device 4 controls the valve mechanism 22 to open the valve, so that the cooling liquid in the cooling liquid device 3 flows into the containing cavity 211 of the battery compartment 21 through the pipeline to completely soak the charging battery, and the effective fire extinguishing of the charging battery is realized.

[0065] As an embodiment of the present application, the valve mechanism 22 is specifically an electromagnetic valve or an electric valve, the lock mechanism 23 is specifically an electromagnetic lock or an electronic lock, and the control device 4 is specifically a single-chip microcomputer. In a normal state, the valve of the valve mechanism 22 is in a closed state, so as to disconnect the battery compartment 21 and the cooling liquid device 3. When the control device 4 judges that the battery compartment 2 has a fire, the control device 4 sends a corresponding control signal to the electromagnetic lock or the electronic lock, the control signal is used as an unlocking signal of the electromagnetic lock or the electronic lock, and the electromagnetic lock or the electronic lock is unlocked after receiving the unlocking signal, so as to release the locking of the battery compartment 21 and the cabinet 1, and the battery compartment 21 is turned over around the rotating shaft 24 under the action of gravity to make the compartment opening 212 upward; then the control device 4 sends a corresponding control signal to the electromagnetic valve or the electric valve to control the valve of the electromagnetic valve or the electric valve to open, so as to connect the battery compartment 21 and the cooling liquid device 3, so that the cooling liquid in the cooling liquid device 3 flows into the containing cavity 211 of the battery compartment 21 through the pipeline to completely soak the charging battery, and the fire extinguishing of the charging battery is realized.

[0066] As an embodiment of the present application, the battery compartment 2 further comprises:

[0067] The buffer mechanism 25 is fixed to the bin body 21, and when the bin body 21 is overturned and the bin opening 212 is kept upward, the buffer mechanism 25 is in contact with the inner wall surface of the cabinet body 1.

[0068] In this embodiment, the buffer mechanism 25 can be buffer cotton, buffer silica gel or buffer spring, etc. Preferably, the buffer mechanism 25 is buffer cotton or buffer silica gel.

[0069] In this embodiment, when the battery bin 2 catches fire, after the lock mechanism 23 is unlocked, during the overturning process of the bin body 21 under the action of gravity, the bin body 21 is in contact with the inner wall surface of the cabinet body 1 through the buffer mechanism 25, which buffers the collision between the bin body 21 and the cabinet body 1, reduces the impact force, avoids excessive vibration to damage other electronic components in the cabinet body 1, and reduces the noise generated by the collision between the bin body 21 and the cabinet body 1.

[0070] As an embodiment of the present application, the battery bin 2 further comprises:

[0071] The overflow pipe 26 is in communication with the inside of the bin body 21, and the position where the overflow pipe 26 is in communication with the containing cavity 211 is close to the bin opening 212, and the overflow pipe 26 is in communication with the outside through the water outlet channel.

[0072] In this embodiment, by setting the overflow pipe 26, the cooling liquid exceeding the position where the overflow pipe 26 is in communication with the containing cavity 211 can be discharged to the outside through the overflow pipe 26, avoiding the cooling liquid flowing into the cabinet body 1, and improving the safety performance of the battery replacement cabinet. Moreover, the position where the overflow pipe 26 is in communication with the containing cavity 211 is close to the bin opening 212, which can improve the water capacity of the containing cavity 211.

[0073] As an embodiment of the present application, the water outlet channel comprises:

[0074] The water guide groove 27 is arranged in the cabinet body 1, and the water guide groove 27 is in communication with the water outlet of the overflow pipe 26;

[0075] The water outlet pipe 28 is connected with the water guide groove 27, and one end of the water outlet pipe 28 is in communication with the outside.

[0076] In this embodiment, when the cooling liquid in the bin body 21 exceeds the highest water level line of the bin body 21, the cooling liquid exceeding the highest water level line flows into the water guide groove 27 through the overflow pipe 26, and then is discharged to the outside through the water outlet pipe 28, realizing the discharge of the cooling liquid to the outside of the cabinet body 1.

[0077] Embodiment two

[0078] Please refer to Figures 6-7 The present embodiment provides a battery replacement cabinet, and the structure of the battery replacement cabinet of the present embodiment is basically the same as that of embodiment one, and the difference from embodiment one is only that:

[0079] In the embodiment, the battery body 21 comprises a plurality of side walls 213 forming a containing cavity 211, at least one side wall 213 of the battery body 21 is provided with a plurality of heat dissipation holes 214 communicating with the containing cavity 211; the battery compartment 2 comprises a sealing plate 29 movably arranged on the battery body 21 and used for sealing the heat dissipation holes 214; when the battery body 21 is overturned and the battery opening 212 is kept upward, the sealing plate 29 moves downward to seal the heat dissipation holes 214.

[0080] In the embodiment, the two oppositely arranged side walls 213 of the battery body 21 are respectively provided with a plurality of heat dissipation holes 214 and a sealing plate 29, and each sealing plate 29 is used for sealing the plurality of heat dissipation holes 214 on the corresponding side wall 213. The sealing plate 29 can be arranged inside the containing cavity 211 or outside the containing cavity 211.

[0081] In the embodiment, the heat dissipation holes 214 are arranged on the side wall of the battery body 21, so that the heat dissipation during the charging of the rechargeable battery can be facilitated; and the sealing plate 29 used for sealing the heat dissipation holes 214 is movably arranged on the battery compartment 2, so that when the battery compartment 2 catches fire, the sealing plate 29 can be used to seal the heat dissipation holes 214, and the battery body 21 can form a pocket for containing liquid, so that the cooling liquid can completely soak the rechargeable battery, and the rechargeable battery can be effectively extinguished.

[0082] In the embodiment, when it is determined that the battery compartment 2 catches fire, the control device 4 controls the locking mechanism 23 to be unlocked, so that the battery body 21 is overturned to keep the battery opening 212 upward, and after the battery body 21 is overturned, the sealing plate 29 moves downward under the action of its own gravity and covers the heat dissipation holes 214, so that the sealing plate 29 seals the heat dissipation holes 214, the battery body 21 forms a pocket for containing cooling liquid, and the cooling liquid can completely soak the rechargeable battery, so that the rechargeable battery can be effectively extinguished. Therefore, the battery compartment 2 of the embodiment can ensure the heat dissipation effect during the charging of the rechargeable battery, and after the battery body 21 is overturned, the sealing plate 29 moves downward under the action of its own gravity and covers the heat dissipation holes 214, so that the battery body 21 is sealed, the cooling liquid can completely soak the rechargeable battery, and the rechargeable battery can be effectively extinguished.

[0083] As an embodiment of the application, the sealing plate 29 is movably arranged on the battery body 21, and the sealing plate 29 can move downward to seal the heat dissipation holes 214.

[0084] In the embodiment, after the battery body 21 is overturned, the sealing plate 29 moves downward under the action of its own gravity and covers the heat dissipation holes 214, so that the heat dissipation holes 214 are sealed.

[0085] As an embodiment of the application, the battery body 21 is provided with a guide mechanism 215, the sealing plate 29 and the guide mechanism 215 form a sliding fit, and the sealing plate 29 can move downward along the guide mechanism 215 to seal the heat dissipation holes 214.

[0086] The guide mechanism 215 can be a guide groove or a guide rail, and the sealing plate 29 is in sliding fit with the guide groove or the guide rail. The sealing plate 29 is limited by the guide groove or the guide rail, so that the sealing plate moves stably and reliably seals the heat dissipation hole 214 to ensure the sealing effect. Figure 5 The guide mechanism 215 shown is a guide groove.

[0087] As an embodiment of the present application, the battery compartment 2 further comprises:

[0088] A spring 20 is arranged to drive the sealing plate 29 to reset, one end of the spring 20 is connected with the compartment body 21, and the other end is connected with the sealing plate 29.

[0089] Specifically, the compartment body 21 is provided with a connecting portion 216, one end of the spring 20 is connected with the connecting portion 216 of the compartment body 21, and the other end is connected with the sealing plate 29.

[0090] In this embodiment, when the battery compartment 2 does not catch fire, the battery compartment 2 is in a horizontal state, and at this time the tension of the spring 20 is just enough to make the sealing plate 29 in a state of opening the heat dissipation hole 214; when the battery compartment 2 catches fire, the battery compartment 2 is overturned to a vertical state, and at this time the gravity of the sealing plate 29 is greater than the tension of the spring 20, so that the sealing plate 29 moves downward to cover the heat dissipation hole 214 to seal the heat dissipation hole 214. When the fire is eliminated, the user restores the battery compartment 2 to the horizontal state, and at this time the spring 20 pulls the sealing plate 29 to reset to open the heat dissipation hole 214 under the action of the tension of the spring 20, so that the spring 20 can be used to automatically reset the sealing plate 29, which greatly improves the user experience.

[0091] Embodiment three

[0092] Please refer to Figures 8-9 The difference between the battery changing cabinet of this embodiment and the battery changing cabinet of embodiment two is that the sealing plate 29 is rotatably arranged on the compartment body 21, and the sealing plate 29 can be rotated downward to seal the heat dissipation hole 214. The compartment body 21 is rotatably connected to the compartment body 21 through a connecting shaft 291, and the sealing plate 29 can rotate around the connecting shaft 291 to cover the heat dissipation hole 214.

[0093] In this embodiment, when the battery compartment 2 does not catch fire, the battery compartment 2 is in a horizontal state, and the sealing plate 29 is in a state of opening the heat dissipation hole 214; when the battery compartment 2 catches fire, the lock mechanism 23 is unlocked, and the compartment body 21 is overturned under the action of its gravity, and at the same time the sealing plate 29 rotates downward around the connecting shaft 291 under the action of its own gravity and covers the heat dissipation hole 214 to seal the heat dissipation hole 214.

[0094] The two opposite side walls 213 of the bin body 21 are respectively provided with a plurality of heat dissipation holes 214, and the two opposite side walls 213 of the bin body 21 are respectively movably provided with a sealing plate 29, and each sealing plate 29 is rotatably arranged on the bin body 21. After the bin body 21 is overturned, each sealing plate 29 can rotate around an axis under the action of its own gravity and cover the heat dissipation hole 214, so as to seal the heat dissipation hole 214, so that the bin body 21 forms a pocket that can be filled with cooling liquid, so that the cooling liquid can completely soak the rechargeable battery in the bin body 21 to extinguish the fire.

[0095] Embodiment four

[0096] Please refer to Figure 10 The application provides a fire extinguishing method of a battery replacement cabinet, which is applied to the battery replacement cabinet in the above-mentioned embodiment one, embodiment two or embodiment three, and comprises the following steps.

[0097] Step S1, when it is judged that the battery bin 2 is on fire, the lock mechanism 23 is unlocked, so that the bin body 21 of the battery bin 2 is overturned to keep the bin opening 212 upward.

[0098] In this step, when it is judged that the battery bin 2 is on fire, the lock mechanism 23 is unlocked, so that the bin body 21 is overturned around the rotating shaft 24 under the action of its own gravity, and the bin opening 212 is kept upward.

[0099] As an embodiment of the application, in the step S1, the bin body 21 comprises a plurality of side walls 213 forming a containing cavity 211, and the plurality of side walls 213 are all closed structures; after the bin body 21 is overturned, a pocket that can contain cooling liquid is formed, so that the cooling liquid in the cooling liquid device 3 flows into the containing cavity 211 of the bin body 21 through the pipeline and fills the containing cavity 211 of the bin body 21, so that the cooling liquid completely soaks the rechargeable battery in the bin body 21, and the rechargeable battery is effectively extinguished.

[0100] As another embodiment of the application, in the step S1, the bin body 21 comprises a plurality of side walls 213 forming a containing cavity 211, and at least one side wall 213 of the bin body 21 is provided with a heat dissipation hole 214 communicating with the containing cavity 211; the battery bin 2 comprises a sealing plate 29 movably arranged on the bin body 21 and used for sealing the heat dissipation hole 214; when the bin body 21 is overturned and the bin opening 212 is upward, the sealing plate 29 moves downward under the action of its own gravity to seal the heat dissipation hole 214, so that the bin body 21 forms a pocket that can contain cooling liquid, and it is ensured that the cooling liquid can completely soak the rechargeable battery, and the rechargeable battery is effectively extinguished.

[0101] In the application, the sealing plate 29 is movably arranged on the bin body 21 or the sealing plate 29 is rotatably arranged on the bin body 21, and when the bin body 21 is overturned and the bin opening 212 is upward, the sealing plate 29 moves downward or rotates under the action of its own gravity to seal the heat dissipation hole 214.

[0102] Step S2, the control valve mechanism 22 opens the valve to make the coolant in the coolant device 3 into the battery compartment 2 of the compartment body 21 to soak the charged battery 210 in the compartment body 21.

[0103] In this step, after the compartment body 21 of the battery compartment 2 is turned over and kept with the compartment opening 212 upward, the control valve mechanism 22 opens the valve to make the coolant in the coolant device 3 flow into the containing cavity 211 of the compartment body 21 to completely soak the charged battery, so as to achieve effective fire extinguishing of the charged battery.

[0104] Embodiment five

[0105] On the basis of embodiment four, before step S1, the fire extinguishing method of the battery swap cabinet further comprises:

[0106] Detecting the temperature and / or the concentration of smoke of the battery compartment 2;

[0107] When the temperature of the battery compartment 2 reaches the preset temperature threshold or the concentration of smoke reaches the preset concentration threshold, it is judged that the battery compartment 2 has a fire.

[0108] In this embodiment, the temperature and the concentration of smoke of the battery compartment 2 are detected by the temperature sensor and the smoke sensor respectively to determine whether a fire occurs. If either the temperature or the concentration of smoke of the battery compartment 2 exceeds the threshold, it is determined that a fire occurs, which greatly improves the reliability of the fire.

[0109] Embodiment six

[0110] On the basis of embodiment four or embodiment five, before step S2, the fire extinguishing method of the battery swap cabinet further comprises:

[0111] Judging whether the turning over of the battery compartment 2 is successful, if yes, the control valve mechanism 22 opens the valve, otherwise the control valve mechanism 22 does not open the valve.

[0112] In this embodiment, by judging whether the turning over of the battery compartment 2 is successful, the control valve mechanism 22 is only opened when the turning over of the battery compartment 2 is successful, which avoids the coolant in the compartment body 21 from flowing out of the compartment opening 212 due to the opening of the valve of the control valve mechanism 22 before the turning over of the battery compartment 2 is successful, thereby improving the reliability of the fire extinguishing work.

[0113] Specifically, whether the battery compartment 2 is turned over to the position can be directly detected by an infrared sensor, or when the turning over time of the battery compartment reaches a preset waiting threshold, it is judged that the battery compartment 2 is turned over successfully.

[0114] Embodiment seven

[0115] On the basis of any one of Embodiment Four to Embodiment Six, after step S2, the fire extinguishing method of the battery replacement cabinet further comprises:

[0116] When it is detected that the cooling liquid capacity in the battery body 21 of the battery compartment 2 reaches the preset minimum water capacity threshold, the valve mechanism 22 is controlled to reduce the flow rate of the cooling liquid in the cooling liquid device into the battery body 21.

[0117] In this embodiment, when the cooling liquid capacity in the battery body 21 of the battery compartment 2 reaches the preset minimum water capacity threshold, the cooling liquid in the battery body 21 of the battery compartment 2 just soaks the charging battery, by reducing the flow rate of the cooling liquid in the cooling liquid device into the battery body 21, it is ensured that the cooling liquid continuously maintains good cooling effect, and excessive waste of the cooling liquid can be avoided.

[0118] Embodiment Eight

[0119] On the basis of any one of Embodiment Four to Embodiment Seven, after step S2, the fire extinguishing method of the battery replacement cabinet further comprises:

[0120] When it is detected that the cooling liquid capacity in the battery body 21 of the battery compartment 2 reaches the preset maximum water capacity threshold, the valve mechanism 22 is controlled to close the valve.

[0121] In this embodiment, when the cooling liquid capacity in the battery body 21 of the battery compartment 2 reaches the preset maximum water capacity threshold, the cooling liquid exceeding the water capacity of the battery body 21 will overflow from the overflow pipe, at this time the valve mechanism 22 is controlled to close the valve to avoid excessive waste of the cooling liquid.

[0122] The fire extinguishing method of the battery replacement cabinet provided in the embodiments of the present application, when judging that the battery compartment is on fire, controls the lock mechanism to be unlocked, so that the battery body of the battery compartment is turned over to keep the compartment opening upward, and controls the valve mechanism to open the valve, so that the cooling liquid in the cooling liquid device enters the battery body of the battery compartment to soak the charging battery in the battery body. The cooling liquid in the cooling liquid device flows into the battery body of the battery compartment, so that the battery body is filled with the cooling liquid to completely soak the charging battery, prevents the charging battery from appearing secondary combustion, thereby greatly improving the fire extinguishing effect.

[0123] The above are only the preferred embodiments of the present application and are not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery swap cabinet, characterized in that, The application relates to a battery storage device, which comprises: a cabinet body; a battery compartment arranged in the cabinet body, wherein the battery compartment comprises: a compartment body rotatably arranged in the cabinet body, wherein the compartment body is provided with a containing cavity for placing a charging battery, one end of the compartment body is provided with a compartment opening in communication with the containing cavity, and the containing cavity is in communication with a cooling liquid device storing cooling liquid through a pipeline; a valve mechanism arranged in the pipeline and connected with a control device, which is used for controlling the communication or disconnection between the compartment body and the cooling liquid device; a locking mechanism connected with the control device and used for locking the compartment body in the cabinet body, wherein the locking mechanism can receive an unlocking signal of the control device to be unlocked, so that the compartment body is turned over and kept with the compartment opening upward; the battery compartment further comprises a rotating shaft arranged in the compartment body, the compartment body is rotatably connected with the cabinet body through the rotating shaft, so that the compartment body can be turned over around the rotating shaft, and the rotating shaft is arranged at the bottom of the battery compartment; when a fire occurs in the battery compartment, the control device controls the locking mechanism to be unlocked, at this moment, the compartment body is unbalanced under the action of force and is turned over around the rotating shaft under the action of gravity, so that the compartment opening is upward.

2. The battery swap cabinet according to claim 1, characterized in that, the battery compartment further comprises: a detection device arranged in the compartment body and connected with the control device, which is used for detecting the temperature and / or the concentration of smoke of the compartment body.

3. The battery swap cabinet of claim 1, wherein, the compartment body comprises a plurality of side walls forming the containing cavity, and the plurality of side walls are all closed structures.

4. The battery swap cabinet of claim 1, wherein, the compartment body comprises a plurality of side walls forming the containing cavity, at least one side wall of the compartment body is provided with a heat dissipation hole in communication with the containing cavity; the battery compartment comprises a sealing plate movably arranged in the compartment body and used for sealing the heat dissipation hole; when the compartment body is turned over and kept with the compartment opening upward, the sealing plate moves downward to seal the heat dissipation hole.

5. The battery swap cabinet according to claim 4, characterized in that, the sealing plate is movably arranged in the compartment body, and the sealing plate can move downward to seal the heat dissipation hole.

6. The battery swap cabinet according to claim 4, characterized in that, the sealing plate is rotatably arranged in the compartment body, and the sealing plate can rotate downward to seal the heat dissipation hole.

7. The battery swap cabinet according to claim 5, wherein, the battery compartment further comprises: a spring used for driving the sealing plate to reset, one end of the spring is connected with the compartment body, and the other end of the spring is connected with the sealing plate. 8.The battery swap cabinet of claim 5, wherein, the compartment body is provided with a guide mechanism, the sealing plate is in sliding cooperation with the guide mechanism, and the sealing plate can move downward along the guide mechanism to seal the heat dissipation hole. 9.The battery swap cabinet of claim 1, wherein, the battery compartment further comprises: a buffer mechanism fixed to the compartment body, when the compartment body is turned over and kept with the compartment opening upward, the buffer mechanism is in contact with the inner wall surface of the cabinet body.

10. The battery swap cabinet according to claim 1, characterized in that, the battery compartment further comprises: a water overflow pipe in communication with the containing cavity of the compartment body, the position of the water overflow pipe in communication with the containing cavity is arranged close to the compartment opening, and the water overflow pipe is in communication with the outside through a water outlet pipeline.

11. A fire extinguishing method of a battery swap cabinet, applied to the battery swap cabinet according to claim 1, characterized in that, including: when it is judged that a fire occurs in the battery compartment, the locking mechanism is controlled to be unlocked, so that the compartment body of the battery compartment is turned over to keep the compartment opening upward; the valve mechanism is controlled to be opened, so that the cooling liquid in the cooling liquid device enters the compartment body of the battery compartment to soak the charging battery in the compartment body. 12.The fire extinguishing method of the battery swap cabinet according to claim 11, wherein, Before the step of controlling the lock mechanism to unlock, and turning the body of the battery compartment upside down to keep the opening of the battery compartment facing upward when it is determined that the battery compartment is on fire, the method further comprises: detecting the temperature of the battery compartment and / or the concentration of smoke; determining that the battery compartment is on fire when the temperature of the battery compartment reaches a preset temperature threshold or the concentration of smoke reaches a preset concentration threshold. 13.The fire extinguishing method of claim 11, wherein, After the step of controlling the valve mechanism to open the valve to allow the coolant in the coolant device to enter the body of the battery compartment to soak the rechargeable batteries in the body, the method further comprises: controlling the valve mechanism to reduce the flow rate of the coolant in the coolant device into the body when it is detected that the coolant capacity in the body reaches a preset minimum water capacity threshold. 14.The fire extinguishing method of claim 11, wherein, After the step of controlling the valve mechanism to open the valve to allow the coolant in the coolant device to enter the body of the battery compartment to soak the rechargeable batteries in the body, the method further comprises: controlling the valve mechanism to close the valve when it is detected that the coolant capacity in the body reaches a preset maximum water capacity threshold.

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