Lithium iron phosphate battery containing protection structure

Abstract

The invention discloses a lithium iron phosphate battery containing a protection structure, and belongs to the technical field of battery protection. The multiple sets of fire extinguishing pipes are arranged, and the multiple fire extinguishing pipes are fixedly connected to the two sides of the interior of the protection shell correspondingly and are evenly distributed; and a plurality of groups of air pressure buffer mechanisms are arranged. According to the lithium iron phosphate battery with the protection structure, by using the fire extinguishing pipe, when the battery breaks down and cracks, the battery can be treated in time, large danger is avoided, in addition, the opening and closing mechanism and the upper cover mechanism are matched, the interior of the protection shell is sealed, influences on the outside are avoided, the safety in the using process is improved, and the service life of the battery is prolonged. According to the lithium iron phosphate battery containing the protection structure, the lifting mechanism is used, so that the battery can be lifted, a worker can more conveniently mount and dismount the battery when overhauling the battery, the use flexibility of the device is improved, and the lithium iron phosphate battery is simple in structure and simple and convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery protection, and in particular relates to a lithium iron phosphate battery with a protection structure. Background Art

[0002] Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. The lithium iron phosphate battery itself is small in size, resulting in the stored power being unable to meet the requirements of personnel use. Therefore, more lithium iron phosphate batteries need to be installed in parallel to form a lithium iron phosphate battery pack to increase its own power in order to meet power supply needs. This type of lithium iron phosphate battery pack is large in size and produces large vibrations during transportation and use, which will affect the use of the battery pack.

[0003] However, during use, the battery failure cannot be handled in time to avoid greater damage. At the same time, the battery failure will affect the external environment and the overall use. Under the existing protection device, the lithium battery has poor heat dissipation effect and is inconvenient to repair. Summary of the invention

[0004] The purpose of the present invention is: through the use of a fire extinguishing tube, when a battery fails, it can cause rupture and the battery can be handled in time to avoid greater danger. In addition, by cooperating with the opening and closing mechanism and the upper cover mechanism, the inside of the protective shell can be sealed to avoid external influences and improve safety during use. By using the lifting mechanism, the battery can be raised and lowered, making it more convenient for workers to inspect and install and disassemble the battery, thereby improving the flexibility of the device. In addition, the structure is simple and easy to use.

[0005] The technical solution adopted by the present invention is as follows: A lithium iron phosphate battery with a protective structure, comprising:

[0006] Protective housing;

[0007] Fire extinguishing pipes, which are provided in multiple groups, and the multiple fire extinguishing pipes are respectively fixedly connected to the two sides of the protective shell, and the multiple fire extinguishing pipes are evenly distributed;

[0008] A plurality of air pressure buffer mechanisms are provided, and the plurality of air pressure buffer mechanisms are all provided at the bottom of the protective housing, and the plurality of air pressure buffer mechanisms are evenly distributed to buffer the battery;

[0009] A lifting mechanism is arranged in the protective shell and is used to lift the battery. The lifting mechanism includes a lifting component, a lifting plate and a buffer plate. The lifting component is arranged in the protective shell. The lifting plate is slidably connected in the protective shell and the lifting plate is connected to the lifting component. The buffer plate is arranged on multiple groups of air pressure buffer mechanisms, and the buffer plate is located directly above the lifting plate.

[0010] There are two sets of opening and closing mechanisms, which are respectively arranged on both sides inside the protective housing for heat dissipation or sealing adjustment of the protective housing. Each set of opening and closing mechanisms includes an adjustment component, a ventilation opening, and a sealing plate. The ventilation opening is opened on one side of the outer surface of the protective housing. The adjustment component is arranged inside the protective housing, and the sealing plate is arranged on the adjustment component; and

[0011] The upper cover mechanism is arranged on the protective housing for top protection of the battery inside the protective housing. The upper cover mechanism includes a clamping component and an upper cover. An installation groove is opened at the top of the protective housing. The upper cover is arranged in the installation groove. The clamping component is arranged on the lifting component and is connected to the upper cover.

[0012] Among them, each set of the air pressure buffer mechanisms includes:

[0013] An air pressure moving component, which is arranged inside the protective housing for air pressure buffering of the battery;

[0014] Limiting components, there are two sets of them, and both sets of limiting components are arranged on the air pressure moving component for restricting the movement of the air pressure moving component; and

[0015] Link components, there are two sets of them. Each set of link components is arranged on each set of air limiting components, and both sets of link components are connected to the air pressure moving component for the combined use of the air pressure moving component.

[0016] Among them, the air pressure moving component includes an upper pressing plate, a bottom pressing plate, and an air pressure block. The bottom pressing plate is installed at the bottom inside the protective housing. The upper pressing plate is arranged directly above the bottom pressing plate. The air pressure block is arranged between the bottom pressing plate and the upper pressing plate, and an internal pressure cavity is opened in the air pressure block. The mutually approaching sides of the bottom pressing plate and the upper pressing plate are both slidably connected inside the air pressure block.

[0017] Among them, each set of the limiting components includes a sliding frame, a sliding groove, and a sliding block. The sliding frame is fixedly connected to the air pressure block. The sliding groove is opened inside the sliding frame. The sliding block is slidably connected inside the sliding groove.

[0018] Among them, each set of the link components includes a plurality of links. The plurality of links are respectively rotatably connected to the centers of both sides of the sliding block, and every two links are respectively rotatably connected to the upper pressing plate and the bottom pressing plate.

[0019] Among them, the lifting component includes:

[0020] A control component, which is arranged inside the protective housing for adjusting the height of the lifting plate; and

[0021] A synchronization component, which is arranged on the control component for the combined movement of the control component.

[0022] Among them, the control component includes a plurality of lifting screws and a control motor, the plurality of lifting screws are rotatably connected to the four corners of the protective shell, the control motor is fixedly connected to the bottom of the protective shell, and the output end of the control motor is fixedly connected to the bottom of one of the lifting screws.

[0023] Among them, the synchronous assembly includes multiple synchronous gears and synchronous toothed belts. A synchronous groove is opened at the bottom of the protective shell. The synchronous toothed belt is arranged in the synchronous groove. Each of the synchronous gears is fixedly connected to the bottom of each lifting screw. The synchronous toothed belt is sleeved on multiple synchronous gears, and the synchronous toothed belt is meshed with the multiple synchronous gears.

[0024] Among them, the positioning component includes a guide groove and a plurality of sealing cylinders, the guide groove is opened in the protective shell, the sealing plate is slidably connected in the guide groove, the plurality of sealing cylinders are all arranged at the bottom of the guide groove, and the output ends of the plurality of sealing cylinders are all fixedly connected to the bottom of the sealing plate.

[0025] Wherein, the clamping component includes a clamping slot and a plurality of clamping strips, the clamping slot is opened on the upper cover, each of the clamping strips is installed on the top of each lifting screw, and the plurality of clamping strips are clamped with the clamping slot.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] (1) In the present invention, by using the fire extinguishing tube, when a battery fails, a rupture may occur, and the battery can be promptly handled to avoid a greater danger. In addition, by cooperating with the opening and closing mechanism and the upper cover mechanism, the interior of the protective shell is sealed to avoid external influences, thereby improving safety during use.

[0028] (2) In the present invention, the battery can be raised and lowered by using the lifting mechanism, making it more convenient for workers to inspect and install the battery, thereby improving the flexibility of the device. In addition, the structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional exploded view of the present invention;

[0030] Figure 2 It is a partial cross-sectional view of the present invention;

[0031] Figure 3 A perspective view of the present invention;

[0032] Figure 4 It is a three-dimensional diagram of the lifting mechanism of the present invention;

[0033] Figure 5Partial cross-sectional view of the pneumatic buffer mechanism of the present invention;

[0034] Figure 6 Stereogram of the pneumatic buffer mechanism of the present invention.

[0035] Markings in the figure: 1. Protective housing; 2. Sealing plate; 3. Guide groove; 4. Ventilation opening; 5. Clamping groove; 6. Upper cover; 7. Fire extinguishing pipe; 8. Clamping strip; 9. Lifting screw rod; 10. Control motor; 11. Synchronous toothed belt; 12. Synchronous groove; 13. Buffer plate; 14. Sliding frame; 15. Bottom pressure plate; 16. Synchronous gear; 17. Sealing cylinder; 18. Installation groove; 19. Upper pressure plate; 20. Slide block; 21. Inner pressure chamber; 22. Connecting rod; 23. Chute; 24. Pneumatic block; 25. Lifting plate. Detailed implementation mode

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention 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 invention and are not used to limit the present invention.

[0037] Example 1, referring to Figure 1-6 : A lithium iron phosphate battery with a protection structure, comprising:

[0038] Protective housing 1;

[0039] Fire extinguishing pipes 7, which are provided with multiple groups, and multiple fire extinguishing pipes 7 are respectively fixedly connected to both sides inside the protective housing 1, and the multiple fire extinguishing pipes 7 are evenly distributed;

[0040] Pneumatic buffer mechanisms, which are provided with multiple groups, and multiple groups of pneumatic buffer mechanisms are all arranged at the bottom inside the protective housing 1, and the multiple groups of pneumatic buffer mechanisms are evenly distributed for buffering the battery;

[0041] Lifting mechanism, arranged inside the protective housing 1 for lifting the battery. The lifting mechanism includes a lifting component, a lifting plate 25 and a buffer plate 13. The lifting component is arranged inside the protective housing 1, the lifting plate 25 is slidably connected inside the protective housing 1, and the lifting plate 25 is connected to the lifting component. The buffer plate 13 is arranged on multiple groups of pneumatic buffer mechanisms, and the buffer plate 13 is located directly above the lifting plate 25;

[0042] Opening and closing mechanisms, which are provided with two groups, and the two groups of opening and closing mechanisms are respectively arranged on both sides inside the protective housing 1 for heat dissipation or sealing adjustment of the protective housing 1. Each group of opening and closing mechanisms includes an adjustment component, a ventilation opening 4 and a sealing plate 2. The ventilation opening 4 is opened on one side of the outer surface of the protective housing 1, the adjustment component is arranged inside the protective housing 1, and the sealing plate 2 is arranged on the adjustment component; and

[0043] The upper cover mechanism is provided on the protective housing 1 for protecting the top of the battery inside the protective housing 1. The upper cover mechanism includes a clamping component and an upper cover 6. An installation groove 18 is opened at the top of the protective housing 1, the upper cover 6 is arranged in the installation groove 18, the clamping component is arranged on the lifting component, and the clamping component is connected to the upper cover 6.

[0044] In this embodiment: The fire extinguishing pipe 7 is internally provided with foam for fire extinguishing, etc. And the material of the fire extinguishing pipe 7 is heat-sensitive glass, which will automatically break in a high-temperature environment. When the battery fails, it breaks to deal with the battery. The lifting plate 25 controls the height of the buffer plate 13 to lift the battery with the buffer plate 13. The buffer plate 13 is arranged on multiple sets of air pressure buffer mechanisms to buffer the battery. The ventilation opening 4 ensures heat dissipation during the use of the battery. The sealing plate 2 seals the ventilation opening 4, and together with the upper cover 6, the protective housing 1 is used in a sealed manner.

[0045] Specifically, each set of air pressure buffer mechanisms includes:

[0046] An air pressure moving component, which is arranged in the protective housing 1 for air pressure buffering of the battery;

[0047] A limiting component, which has two sets. Both sets of limiting components are arranged on the air pressure moving component for restricting the movement of the air pressure moving component; and

[0048] A connecting rod component, which has two sets. Each set of connecting rod components is arranged on each set of air limiting components, and both sets of connecting rod components are connected to the air pressure moving component for the linkage use of the air pressure moving component.

[0049] In this embodiment: The air pressure moving component buffers the battery, and pneumatic buffering can improve safety. The connecting rod component connects the air pressure moving component and the limiting component to complete the movement use.

[0050] Specifically, the air pressure moving component includes an upper pressing plate 19, a bottom pressing plate 15 and an air pressure block 24. The bottom pressing plate 15 is installed at the inner bottom of the protective housing 1. The upper pressing plate 19 is arranged directly above the bottom pressing plate 15. The air pressure block 24 is arranged between the bottom pressing plate 15 and the upper pressing plate 19, and an internal pressure cavity 21 is opened in the air pressure block 24. The mutually close sides of the bottom pressing plate 15 and the upper pressing plate 19 are both slidably connected inside the air pressure block 24.

[0051] In this embodiment: The upper pressing plate 19 and the bottom pressing plate 15 correspond to each other, so that the upper pressing plate 19 and the bottom pressing plate 15 move inside the air pressure block 24 for air pressure buffering use.

[0052] Specifically, each set of limiting components includes a sliding frame 14, a sliding groove 23 and a sliding block 20. The sliding frame 14 is fixedly connected to the air pressure block 24. The sliding groove 23 is opened in the sliding frame 14. The sliding block 20 is slidably connected in the sliding groove 23.

[0053] In this embodiment: The slider 20 moves within the chute 23 to limit the movement of the upper pressing plate 19 and the bottom pressing plate 15, ensuring normal use.

[0054] Specifically, each set of link components includes a plurality of links 22. The plurality of links 22 are respectively rotatably connected to the central positions on both sides of the slider 20, and every two links 22 are respectively rotatably connected to the upper pressing plate 19 and the bottom pressing plate 15.

[0055] In this embodiment: The plurality of links 22 cooperate with each other to ensure the use effect.

[0056] Specifically, the lifting component includes:

[0057] A control component, disposed within the protective housing 1 for adjusting the height of the lifting plate 25; and

[0058] A synchronization component, disposed on the control component for controlling the linkage of the components.

[0059] In this embodiment: The control component adjusts the height of the lifting plate 25 through the synchronization component for use.

[0060] Specifically, the control component includes a plurality of lifting screws 9 and a control motor 10. The plurality of lifting screws 9 are respectively rotatably connected to the four corners inside the protective housing 1. The control motor 10 is fixedly connected to the bottom inside the protective housing 1, and the output end of the control motor 10 is fixedly connected to the bottom of one of the lifting screws 9.

[0061] In this embodiment: The model of the control motor 10 can be selected from those available on the market according to needs, and will not be elaborated here. By the control motor 10, one of the lifting screws 9 rotates to adjust the height of the lifting plate 25.

[0062] Specifically, the synchronization component includes a plurality of synchronization gears 16 and a synchronization belt 11. A synchronization groove 12 is opened at the bottom of the protective housing 1. The synchronization belt 11 is disposed within the synchronization groove 12. Each synchronization gear 16 is fixedly connected to the bottom of each lifting screw 9. The synchronization belt 11 is sleeved on the plurality of synchronization gears 16, and the synchronization belt 11 meshes with the plurality of synchronization gears 16.

[0063] In this embodiment: The sizes of the plurality of synchronization gears 16 are the same. Through the synchronization belt 11, the plurality of synchronization gears 16 rotate synchronously, so that the plurality of lifting screws 9 rotate synchronously to control the lifting of the lifting plate 25.

[0064] Specifically, the position adjustment component includes a guide groove 3 and a plurality of sealing cylinders 17. The guide groove 3 is opened inside the protective housing 1. The sealing plate 2 is slidably connected to the guide groove 3. The plurality of sealing cylinders 17 are all disposed at the bottom inside the guide groove 3, and the output ends of the plurality of sealing cylinders 17 are all fixedly connected to the bottom of the sealing plate 2.

[0065] In this embodiment: The model of the sealing cylinder 17 can be selected from those available on the market according to needs, and will not be elaborated here. By the telescopic movement of the sealing cylinder 17, the sealing plate 2 is controlled to move in the guiding groove 3, so that the sealing plate 2 seals the ventilation opening 4 for use.

[0066] Specifically, the clamping components include a clamping groove 5 and a plurality of clamping strips 8. The clamping groove 5 is formed on the upper cover 6. Each clamping strip 8 is installed at the top of each lifting screw rod 9, and the plurality of clamping strips 8 are all clamped with the clamping groove 5.

[0067] In this embodiment: The clamping groove 5 and the plurality of clamping strips 8 cooperate with each other to ensure the use. Moreover, the clamping strip 8 is rotatably connected to the lifting screw rod 9. However, the friction between the clamping strip 8 and the lifting screw rod 9 is relatively large. The clamping strip 8 can be driven to rotate by the lifting screw rod 9, and when the clamping strip 8 contacts the inner wall of the protection shell 1, it does not affect the rotation of the lifting screw rod 9.

[0068] During use, the control motor 10 controls one of the lifting screw rods 9 to rotate, and through the cooperation of a plurality of synchronous gears 16 and the synchronous toothed belt 11, the plurality of lifting screw rods 9 rotate synchronously, so that the lifting plate 25 drives the buffer plate 13 to rise. After placing the battery on the buffer plate 13, the control motor 10 rotates in the reverse direction, and the control lifting plate 25 drives the buffer plate 13 to descend, so that the buffer plate 13 is placed on a plurality of upper pressing plates 19. Place 6 in the installation groove 18, drive a plurality of clamping strips 8 to rotate through the control motor 10, and dock with the clamping groove 5, so that 6 is fixed in the installation groove 18. During the use process, the upper pressing plate 19 and the bottom pressing plate 15 cooperate with each other in the air pressure block 24 to perform buffering. At the same time, air circulation is carried out through the ventilation opening 4 to complete heat dissipation. When a fault occurs in the battery, a plurality of sealing cylinders 17 control the sealing plate 2 to rise in the guiding groove 3, so that the sealing plate 2 seals the ventilation opening 4. At the same time, the fire extinguishing pipe 7 is damaged by high temperature to process the battery and complete the use.

[0069] The control mode of the present invention is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply ground are common knowledge in the art, and the present invention is mainly used to protect mechanical devices, so the control mode and wiring layout of the present invention will not be further explained.

[0070] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium iron phosphate battery with a protective structure, characterized in that: include: Protective housing (1); Fire extinguishing pipes (7), which are provided in multiple groups, and the multiple fire extinguishing pipes (7) are respectively fixedly connected to the two sides of the protective shell (1), and the multiple fire extinguishing pipes (7) are evenly distributed; A plurality of air pressure buffer mechanisms are provided, and the plurality of air pressure buffer mechanisms are all arranged at the bottom of the protective housing (1), and the plurality of air pressure buffer mechanisms are evenly distributed to buffer the battery; A lifting mechanism is arranged in the protective shell (1) and is used to lift the battery. The lifting mechanism comprises a lifting component, a lifting plate (25) and a buffer plate (13). The lifting component is arranged in the protective shell (1). The lifting plate (25) is slidably connected in the protective shell (1), and the lifting plate (25) is connected to the lifting component. The buffer plate (13) is arranged on a plurality of groups of air pressure buffer mechanisms, and the buffer plate (13) is located directly above the lifting plate (25). An opening and closing mechanism, wherein two groups are provided, and the two groups of opening and closing mechanisms are respectively arranged on both sides of the protective shell (1) for heat dissipation or sealing adjustment of the protective shell (1), and each group of the opening and closing mechanisms comprises a positioning component, a vent (4) and a sealing plate (2), wherein the vent (4) is opened on one side of the outer surface of the protective shell (1), the positioning component is arranged in the protective shell (1), and the sealing plate (2) is arranged on the positioning component; as well as The upper cover mechanism is arranged on the protective shell (1) and is used for protecting the top of the battery inside the protective shell (1). The upper cover mechanism comprises a clamping component and an upper cover (6). The top of the protective shell (1) is provided with a mounting groove (18). The upper cover (6) is arranged in the mounting groove (18). The clamping component is arranged on the lifting component, and the clamping component is connected to the upper cover (6).

2. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: Each group of the air pressure buffer mechanisms comprises: An air pressure moving component is arranged in the protective housing (1) and is used to buffer the air pressure of the battery; Limiting components, which are provided in two groups, and the two groups of limiting components are both provided on the gas pressure moving component to limit the movement of the gas pressure moving component; and The connecting rod components are provided with two groups, each group of the connecting rod components is arranged on each group of gas limit components, and the two groups of connecting rod components are connected with the gas pressure moving components for linkage use of the gas pressure moving components.

3. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The pneumatic moving component comprises an upper pressure plate (19), a lower pressure plate (15) and an air pressure block (24); the lower pressure plate (15) is installed at the bottom of the protective shell (1); the upper pressure plate (19) is arranged directly above the lower pressure plate (15); the air pressure block (24) is arranged between the lower pressure plate (15) and the upper pressure plate (19); an internal pressure chamber (21) is provided in the air pressure block (24); and the sides of the lower pressure plate (15) and the upper pressure plate (19) that are close to each other are both slidably connected in the air pressure block (24).

4. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: Each group of the limiting components comprises a slide frame (14), a slide groove (23) and a slider (20); the slide frame (14) is fixedly connected to the air pressure block (24); the slide groove (23) is opened in the slide frame (14); and the slider (20) is slidably connected in the slide groove (23).

5. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: Each group of connecting rod components comprises a plurality of connecting rods (22), and the plurality of connecting rods (22) are rotatably connected to the centers of both sides of the slider (20), and every two connecting rods (22) are rotatably connected to the upper pressure plate (19) and the bottom pressure plate (15).

6. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The lifting component comprises: A control assembly, disposed in the protective housing (1), for adjusting the height of the lifting plate (25); and The synchronization component is arranged on the control component and is used for controlling the linkage of the components.

7. A lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The control assembly comprises a plurality of lifting screws (9) and a control motor (10), wherein the plurality of lifting screws (9) are rotatably connected to the four corners of the protective shell (1), the control motor (10) is fixedly connected to the bottom of the protective shell (1), and the output end of the control motor (10) is fixedly connected to the bottom of one of the lifting screws (9).

8. The lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The synchronous assembly comprises a plurality of synchronous gears (16) and a synchronous toothed belt (11); a synchronous groove (12) is provided at the bottom of the protective housing (1); the synchronous toothed belt (11) is arranged in the synchronous groove (12); each of the synchronous gears (16) is fixedly connected to the bottom of each lifting screw (9); the synchronous toothed belt (11) is sleeved on the plurality of synchronous gears (16), and the synchronous toothed belt (11) and the plurality of synchronous gears (16) are meshed with each other.

9. The lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The positioning component comprises a guide groove (3) and a plurality of sealing cylinders (17); the guide groove (3) is opened in the protective housing (1); the sealing plate (2) is slidably connected in the guide groove (3); the plurality of sealing cylinders (17) are all arranged at the bottom of the guide groove (3); and the output ends of the plurality of sealing cylinders (17) are all fixedly connected to the bottom of the sealing plate (2).

10. The lithium iron phosphate battery with a protective structure as claimed in claim 1, characterized in that: The clamping component comprises a clamping groove (5) and a plurality of clamping strips (8); the clamping groove (5) is formed on the upper cover (6); each of the clamping strips (8) is installed on the top of each lifting screw rod (9); and the plurality of clamping strips (8) are clamped with the clamping groove (5).

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