Lithium iron phosphate battery energy storage device with protection function

Abstract

The utility model relates to a battery energy storage device, in particular to a lithium iron phosphate battery energy storage device with a protection function. The lithium iron phosphate battery energy storage device with the protection function comprises a case, a partition plate, insulation frames, fixing plates, a handle, a controller and the like, the partition plate is fixedly connected to the interior of the case, the insulation frames are symmetrically and fixedly connected to the two sides of the partition plate, the fixing plates are fixedly connected to the two insulation frames, and the handle is fixedly connected to the fixing plates. Handles are symmetrically and rotationally connected to the two sides of the top of the case, and a controller is fixedly connected to the left portion of the case. The temperature sensor and the condenser are started through the controller, the condenser can dissipate heat generated when the lithium iron phosphate battery works, so that the interior of the case is separated from a high-temperature state, and when the temperature sensor is checked to find that the temperature is in an abnormal state, a power supply can be cut off in time, so that the device is in a safe and controllable state; and the heat dissipation function of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to a battery energy storage device, in particular to a lithium iron phosphate battery energy storage device with a protective function. Background Art

[0002] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. During the charging process, some lithium ions in the lithium iron phosphate are released, transferred to the negative electrode through the electrolyte, and embedded in the negative electrode carbon material. At the same time, electrons are released from the positive electrode and reach the negative electrode from the external circuit to maintain the balance of the chemical reaction. During the discharge process, lithium ions are released from the negative electrode and reach the positive electrode through the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode from the external circuit to provide energy to the outside world. Lithium iron phosphate batteries have the advantages of high operating voltage, high energy density, long cycle life, low self-discharge rate, and no memory effect.

[0003] Lithium iron phosphate batteries generate heat when in operation, and the heat generated by the lithium iron phosphate batteries needs to be dissipated. However, existing lithium iron phosphate battery energy storage devices are usually relatively closed internally, with poor heat dissipation effect, resulting in a high temperature inside the chassis. Lithium iron phosphate batteries in a high temperature state inside the chassis are prone to spontaneous combustion, posing a major safety hazard.

[0004] Therefore, it is necessary to design a lithium iron phosphate battery energy storage device with a protective function to solve the above technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing lithium iron phosphate battery energy storage devices, such as poor heat dissipation effect, easy spontaneous combustion of lithium iron phosphate batteries under high temperature conditions, and great safety hazards, the technical problem of the utility model is to provide a lithium iron phosphate battery energy storage device with protective function.

[0006] The technical solution is as follows: A lithium iron phosphate battery energy storage device with protective function, including a chassis, a partition, an insulating frame, a fixed plate, a handle, a controller, a temperature sensor and a condenser. The chassis is fixedly connected to a partition, and insulating frames are symmetrically fixedly connected on both sides of the partition. Both insulating frames are fixedly connected to a fixed plate, and handles are symmetrically and rotatably connected on both sides of the top of the chassis. The left side of the chassis is fixedly connected to a temperature sensor, and the left side of the chassis is fixedly connected to a condenser. The inside of the chassis is fixedly connected to the temperature sensor and the condenser, and the temperature sensor and the condenser are electrically connected to the controller.

[0007] Optionally, it also includes a first filter, an air outlet pipe, a fan and a second filter. An air inlet is opened on the rear side of the chassis, and the first filter is fixedly connected to the rear side of the air inlet. The two sides of the front of the chassis are symmetrically connected and connected with air outlet pipes. Fans are fixedly connected inside the two air outlet pipes, and the front of the two air outlet pipes is fixedly connected to the second filter. The fan is electrically connected to the controller.

[0008] Optionally, it further includes a material storage frame and a ventilation plate, the lower part of the chassis is slidably connected to the material storage frame, the lower part of the chassis is fixedly connected to the ventilation plate, and the ventilation plate is located above the material storage frame.

[0009] Optionally, a buffer pad is further included, and the bottom of the chassis is fixedly connected to the buffer pad.

[0010] Optionally, the chassis is made of flame retardant material.

[0011] Optionally, a pull ring is provided on the front of the storage frame.

[0012] The beneficial effect is: the utility model starts the temperature sensor and condenser through the controller, and the condenser can dissipate the heat generated by the lithium iron phosphate battery when it is working, so that the inside of the chassis is out of the high temperature state. When the temperature sensor is checked and it is found that the temperature is in an abnormal state, the power supply can be disconnected in time, so that the device is in a safe and controllable state, which greatly improves the heat dissipation function of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 This is a structural diagram of the components of the utility model, such as the chassis, partitions and insulation frame.

[0015] Figure 3 This is a schematic structural diagram of the utility model's components, including the air outlet pipe, fan, and second filter.

[0016] Figure 4 This is a structural diagram of the material storage frame, air permeable plate, buffer pad and other components of the utility model.

[0017] The components in the accompanying drawings are marked as follows: 1_chassis, 2_partition, 3_insulation frame, 4_fixing plate, 5_handle, 6_controller, 7_temperature sensor, 8_condenser, 9_air inlet, 10_first filter, 11_outlet pipe, 12_fan, 13_second filter, 14_storage frame, 15_ventilation plate, 16_cushion pad. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: A lithium iron phosphate battery energy storage device with a protective function, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, it includes a chassis 1, a partition 2, an insulating frame 3, a fixing plate 4, a handle 5, a controller 6, a temperature sensor 7 and a condenser 8. The partition 2 is connected to the inside of the chassis 1 by screw mounting, and the insulating frame 3 is symmetrically connected to the left and right sides of the partition 2 by gluing. The tops of the two insulating frames 3 are connected to the fixing plates 4 by screw mounting. The handles 5 are symmetrically and rotatably connected to the left and right sides of the top of the chassis 1. The controller 6 is connected to the right side of the upper left side of the chassis 1 by screw mounting, and the temperature sensor 7 is connected to the right side of the lower left side of the chassis 1 by screw mounting. The condenser 8 is connected to the left side of the inside of the chassis 1 by screw mounting, and the temperature sensor 7 and the condenser 8 are electrically connected to the controller 6, and the chassis 1 is made of flame retardant material.

[0020] like Figure 1 and Figure 4 As shown, a buffer pad 16 is also included, and the bottom of the chassis 1 is connected to the buffer pad 16 by gluing.

[0021] When the device needs to be used, the staff can first hold the handle 5 with both hands and place the device on a horizontal surface. The cushion 16 at the bottom of the chassis 1 can reduce the vibration of the lithium iron phosphate battery when the device is placed. Then connect the power supply. After connecting the power supply, the lithium iron phosphate battery enters the working state. Then, the temperature sensor 7 and the condenser 8 can be started through the controller 6. The condenser 8 can dissipate the heat generated by the lithium iron phosphate battery when it is working, so that the inside of the chassis 1 is out of the high temperature state. When checking the temperature sensor 7 and finding that the temperature is in an abnormal state, the power supply can be disconnected in time to put the device in a safe and controllable state.

[0022] like Figure 1 and Figure 3As shown, it also includes a first filter 10, an air outlet pipe 11, a fan 12 and a second filter 13. An air inlet 9 is opened on the rear side of the chassis 1, and the first filter 10 is fixedly connected to the rear side of the air inlet 9. The left and right sides of the front side of the chassis 1 are symmetrically connected and connected with the air outlet pipe 11. The rear sides of the two air outlet pipes 11 are connected to the fan 12 by screw installation. The front sides of the two air outlet pipes 11 are connected to the second filter 13 by screw installation. The fan 12 is electrically connected to the controller 6.

[0023] like Figure 1 and Figure 4 As shown, it also includes a material storage frame 14 and a breathable plate 15. The material storage frame 14 is slidably connected to the front side of the lower part of the chassis 1. A pull ring is provided on the front side of the material storage frame 14. The breathable plate 15 is connected to the front side of the lower part of the chassis 1 by screw installation, and the breathable plate 15 is located directly above the material storage frame 14.

[0024] When the heat inside the chassis 1 cannot be discharged, the staff can start the fan 12 through the controller 6. After starting the fan 12, the air outside the chassis 1 can be sucked into the chassis 1 through the air inlet 9, and the heat generated by the lithium iron phosphate battery in the chassis 1 can be discharged through the outlet pipe 11, which can further cool the lithium iron phosphate battery. The first filter 10 and the second filter 13 can filter a large amount of dust. In order to prevent the inside of the chassis 1 from being damp, the pull ring can be pulled forward to pull the storage frame 14 before use, and then an appropriate amount of desiccant can be placed in the storage frame 14. After use, the temperature sensor 7, condenser 8 and fan 12 can be turned off through the controller 6.

[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A lithium iron phosphate battery energy storage device with a protective function, characterized in that: The invention comprises a machine box (1), a partition (2), an insulating frame (3), a fixing plate (4), a handle (5), a controller (6), a temperature sensor (7) and a condenser (8); the partition (2) is fixedly connected inside the machine box (1); the insulating frames (3) are symmetrically fixedly connected on both sides of the partition (2); the fixing plates (4) are fixedly connected on both insulating frames (3); the handles (5) are symmetrically rotatably connected on both sides of the top of the machine box (1); the controller (6) is fixedly connected to the left side of the machine box (1); the temperature sensor (7) is fixedly connected to the left side of the machine box (1); the condenser (8) is fixedly connected inside the machine box (1); and the temperature sensor (7) and the condenser (8) are electrically connected to the controller (6).

2. A lithium iron phosphate battery energy storage device with a protective function according to claim 1, characterized in that: The invention also includes a first filter (10), an air outlet pipe (11), a fan (12) and a second filter (13); an air inlet (9) is provided on the rear side of the chassis (1); the first filter (10) is fixedly connected to the rear side of the air inlet (9); the two sides of the front of the chassis (1) are symmetrically connected and communicated with the air outlet pipes (11); the insides of the two air outlet pipes (11) are fixedly connected to the fans (12); the fronts of the two air outlet pipes (11) are fixedly connected to the second filter (13); and the fans (12) are electrically connected to the controller (6).

3. A lithium iron phosphate battery energy storage device with a protective function according to claim 2, characterized in that: The machine also comprises a material storage frame (14) and a ventilation plate (15); the lower part of the chassis (1) is slidably connected to the material storage frame (14); the lower part of the chassis (1) is fixedly connected to the ventilation plate (15), and the ventilation plate (15) is located above the material storage frame (14).

4. A lithium iron phosphate battery energy storage device with a protective function according to claim 3, characterized in that: It also includes a buffer pad (16), and the bottom of the chassis (1) is fixedly connected with the buffer pad (16).

5. A lithium iron phosphate battery energy storage device with a protective function according to claim 4, characterized in that: The chassis (1) is made of flame retardant material.

6. A lithium iron phosphate battery energy storage device with a protective function according to claim 5, characterized in that: The front portion of the material storage frame (14) is provided with a pull ring.

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