Immersed energy storage lithium battery device

Abstract

The utility model belongs to the technical field of lithium batteries, and discloses an immersed energy storage lithium battery device which comprises a metal shell, a cover plate is arranged at the top of the metal shell in an aligned manner, a first extension frame is fixedly mounted on the outer wall of the bottom end of the cover plate in a sleeving manner, and a second extension frame is distributed on the lower side of the first extension frame in an aligned manner; according to the present invention, by arranging the metal shell and the cover plate, each split lithium battery in the lithium battery box can be supported, and the sealing and locking effect between the metal shell and the cover plate can be achieved in cooperation with the arranged first extension frame, the arranged second extension frame and the plurality of locking screws, and by arranging each group of the auxiliary assemblies on the top of the cover plate, the sealing and locking effects between the metal shell and the cover plate can be achieved; after the locking screws are installed, under the action of abutting and limiting the non-threaded end of each locking screw, the problem that the locking screws are loosened due to long-time use of the whole energy storage lithium battery can be prevented, and the situation that the internal sealing effect is affected due to the fact that a gap between the metal shell and the cover plate is enlarged is prevented.

Description

Technical Field

[0001] This application relates to the field of lithium battery technology, and more specifically, to an immersion energy storage lithium battery device. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental standards. With the development of science and technology, lithium batteries have become the mainstream.

[0003] Currently, to prevent moisture and other substances from corroding lithium batteries, a cover and sealing ring are usually installed on the waterproof casing containing the lithium batteries. However, in existing systems, the cover is fixed to the waterproof casing with screws. During long-term use, the screws are easily loosened by external vibrations and environmental influences, causing the gap between the cover and the casing to widen and affecting the sealing and waterproofing effect.

[0004] To address the aforementioned issues, this application provides an immersion-type energy storage lithium battery device. Utility Model Content

[0005] The submersible energy storage lithium battery device provided in this application adopts the following technical solution:

[0006] An immersion energy storage lithium battery device includes a metal casing. A cover plate is aligned with the top of the metal casing. A first extension frame is fixedly sleeved on the outer wall of the bottom end of the cover plate. A second extension frame is aligned with the lower side of the first extension frame. The second extension frame is fixedly sleeved on the outer wall of the top end of the metal casing. Multiple screw holes are opened through the four ends of the first and second extension frames. Locking screws are screwed into each screw hole at the four ends of the first and second extension frames. Auxiliary components are provided at the four edges of the top of the cover plate.

[0007] The auxiliary component includes a movable baffle with a through hole at its bottom end. A shaft is rotatably connected to the bottom end of the movable baffle through the through hole. Both ends of the shaft are fixedly connected to fixing blocks, and both fixing blocks are fixedly installed on one side edge of the top of the cover plate. An insertion hole is provided on one end face of the movable baffle, and a locking structure is provided on one of the fixing blocks near the insertion hole.

[0008] Furthermore, the outer surface of the shaft is in rotatable contact with a damping rubber sleeve, and the damping rubber sleeve is fixedly fitted onto the inner wall of the perforation.

[0009] Through the above technical solution, the damping rubber sleeve increases the rotational resistance of the movable baffle while preventing it from swinging randomly when not in a positioned state.

[0010] Furthermore, the locking structure includes a plug rod, a lifting block, and a spring. The plug rod is slidably sleeved through the inner cavity of one of the fixing blocks, and the plug rod is located on one side of the shaft. The lifting block is fixedly connected to one end of the plug rod, and the spring is located outside one side of the plug rod. One end of the spring is fixedly connected to the lifting block, and the other end of the spring is fixedly connected to the fixing block.

[0011] Through the above technical solution, the locking structure achieves the positioning function of the movable baffle after it rotates downward.

[0012] Furthermore, a sealing gasket is provided between the first extension frame and the second extension frame. The sealing gasket is fixedly installed at the bottom of the first extension frame and is located on the outside of each screw hole.

[0013] Through the above technical solution, the sealing gasket can ensure the sealing effect between the first extension frame and the second extension frame.

[0014] Furthermore, a positive interface, a negative interface, and a communication interface are respectively provided on one side of the upper end of the metal shell, and the positive interface, negative interface, and communication interface are linearly and intermittently distributed.

[0015] Furthermore, the interior of the metal casing contains a plurality of separate lithium batteries arranged linearly, uniformly, and at intervals. Each separate lithium battery has a lower bracket movably attached to the outer wall at its bottom end, and each lower bracket is fixedly installed on the inner wall at the bottom end of the metal casing. Each separate lithium battery has an upper bracket movably attached to the outer wall at its top end, and each upper bracket has a connecting rod fixedly connected to its top. The top of each connecting rod is fixedly connected to the inner side wall of the cover plate.

[0016] Through the above technical solution, the lower bracket, upper bracket, and connecting rod can achieve the positioning function of the split lithium battery inside the metal casing.

[0017] Furthermore, the interior of the metal casing is filled with an immersion coolant, which is submerged in the exterior of each individual lithium battery, lower bracket, upper bracket, and connecting rod.

[0018] Through the above technical solution, the filling of immersion coolant can improve the isolation effect on each individual lithium battery while preventing overheating.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] This application, through its metal casing and cover plate, can support the individual lithium batteries inside while, in conjunction with the first extension frame, second extension frame, and multiple locking screws, achieving a sealing and locking effect between the metal casing and the cover plate. Furthermore, through each set of auxiliary components on the top of the cover plate, after the locking screws are installed, the non-threaded end of each locking screw is abutted and limited, thus preventing the locking screws from loosening due to prolonged use of the overall energy storage lithium battery and preventing the gap between the metal casing and the cover plate from widening and affecting the internal sealing effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a partial structural diagram of this application;

[0023] Figure 3 This is a partial semi-exploded view of this application;

[0024] Figure 4 This is a side sectional view of the metal casing of this application.

[0025] Explanation of the labels in the diagram:

[0026] 1. Metal casing; 2. Cover plate; 3. First extension frame; 4. Second extension frame; 5. Locking screw; 6. Auxiliary components; 61. Movable baffle; 62. Shaft; 63. Fixing block; 64. Insertion hole; 65. Insertion rod; 66. Lifting block; 67. Spring; 7. Split lithium battery; 8. Lower bracket; 9. Upper bracket; 10. Connecting rod; 11. Immersion coolant. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0030] This application discloses an immersion-type energy storage lithium battery device. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 The device includes a metal shell 1, a cover plate 2 aligned with the top of the metal shell 1, a first extension frame 3 fixedly sleeved on the outer wall of the bottom end of the cover plate 2, a second extension frame 4 aligned with the lower side of the first extension frame 3, and the second extension frame 4 fixedly sleeved on the outer wall of the top end of the metal shell 1. The connection points of the four sides of the first extension frame 3 and the second extension frame 4 are all provided with multiple through holes, and the connection points of the four sides of the first extension frame 3 and the second extension frame 4 are all screwed with locking screws 5 through each screw hole. The four edges of the top of the cover plate 2 are provided with auxiliary components 6.

[0031] The auxiliary component 6 includes a movable baffle 61 with a through hole at the bottom end. A shaft 62 is rotatably sleeved at the bottom end of the movable baffle 61 through the through hole. Both ends of the shaft 62 are fixedly connected to fixing blocks 63. The two fixing blocks 63 are fixedly installed on one side edge of the top of the cover plate 2. An insertion hole 64 is opened on one end face of the movable baffle 61. A locking structure is provided on one of the fixing blocks 63 near the insertion hole 64. The outer surface of the shaft 62 rotatably contacts a damping rubber sleeve, and the damping rubber sleeve is fixedly sleeved and installed on the inner wall of the through hole.

[0032] The locking structure includes a plug rod 65, a lifting block 66, and a spring 67. The plug rod 65 is slidably sleeved through the inner cavity of one of the fixing blocks 63, and the plug rod 65 is located on one side of the shaft 62. The lifting block 66 is fixedly connected to one end of the plug rod 65, and the spring 67 is located on the outside of one side of the plug rod 65. One end of the spring 67 is fixedly connected to the lifting block 66, and the other end of the spring 67 is fixedly connected to the fixing block 63. The end of the plug rod 65 facing away from the lifting block 66 is fitted into the inner wall of the insertion hole 64.

[0033] Please see Figure 1 and Figure 4A sealing gasket is provided between the first extension frame 3 and the second extension frame 4. The sealing gasket is fixedly installed at the bottom of the first extension frame 3 and is located on the outside of each screw hole. A positive electrode interface, a negative electrode interface and a communication interface are respectively provided on one side of the upper end of the metal shell 1. The positive electrode interface, the negative electrode interface and the communication interface are linearly and intermittently distributed. The setting of the positive electrode interface, the negative electrode interface and the communication interface can realize the external connection function of the overall energy storage lithium battery under different needs.

[0034] The interior of the metal casing 1 contains multiple individual lithium batteries 7 arranged linearly, uniformly, and at intervals. Each individual lithium battery 7 has a lower bracket 8 movably attached to the outer wall at its bottom, and each lower bracket 8 is fixedly installed on the inner wall at the bottom of the metal casing 1. Each individual lithium battery 7 has an upper bracket 9 movably attached to the outer wall at its top, and each upper bracket 9 has a connecting rod 10 fixedly connected to its top. The top of each connecting rod 10 is fixedly connected to the inner wall of the cover plate 2. The interior of the metal casing 1 is filled with an immersion coolant 11, which is submerged in the exterior of each individual lithium battery 7, lower bracket 8, upper bracket 9, and connecting rod 10.

[0035] The implementation principle of this embodiment is as follows: When in use, the cover plate 2 is joined on the top of the metal shell 1, so that the first extension frame 3 and the second extension frame 4 are aligned, and the sealing gasket between them is passively pressed. During the docking operation of the cover plate 2, each upper bracket 9 and connecting rod 10 are immersed in the immersion coolant 11, so that each upper bracket 9 is snapped and docked to the upper end of each split lithium battery 7. Then, each locking screw 5 is used to realize the installation and locking work between the first extension frame 3 and the second extension frame 4. At this time, the top of the non-threaded end of each locking screw 5 is flush with the top of the cover plate 2.

[0036] Then, by operating each auxiliary component 6, the locking screws 5 on the four sides between the first extension frame 3 and the second extension frame 4 can be abutted and limited. During the operation of each set of auxiliary components 6, the insertion rod 65 is pulled out by the lifting block 66, while the spring 67 is stretched and deformed, so that one end of the insertion rod 65 is hidden behind the inner cavity of a fixed block 63. The movable baffle 61 is moved so that it rotates and swings 90 degrees towards the top of the locking screw 5 according to the central axis position of the shaft 62. At this time, one side of the movable baffle 61 abuts and covers the top of part of the locking screw 5, while the insertion hole 64 on one side of the movable baffle 61 moves to a position linearly corresponding to one end of the insertion rod 65. Then, by using the reset action of the spring 67, the insertion rod 65 is inserted into the insertion hole 64, thus achieving the positioning work of the movable baffle 61 after rotation and swing. In this way, by abutting and limiting each locking screw 5, the loosening problem of each locking screw 5 after long-term use is prevented.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An immersion-type energy storage lithium battery device, comprising a metal casing (1), characterized in that: The top of the metal shell (1) is provided with a cover plate (2), and the outer wall of the bottom end of the cover plate (2) is fixedly sleeved with a first extension frame (3). The lower side of the first extension frame (3) is provided with a second extension frame (4), and the second extension frame (4) is fixedly sleeved at the outer wall of the top of the metal shell (1). The four sides of the first extension frame (3) and the second extension frame (4) are all provided with multiple through holes, and the four sides of the first extension frame (3) and the second extension frame (4) are all screwed with locking screws (5) through each screw hole. The four sides of the top of the cover plate (2) are provided with auxiliary components (6). The auxiliary component (6) includes a movable baffle (61), with a through hole at the bottom end of the movable baffle (61), and a shaft (62) is rotatably sleeved at the bottom end of the movable baffle (61) through the through hole. Both ends of the shaft (62) are fixedly connected to fixing blocks (63), and both fixing blocks (63) are fixedly installed on one side edge of the top of the cover plate (2). One end face of the movable baffle (61) is provided with an insertion hole (64), and a locking structure is provided on one of the fixing blocks (63) near the insertion hole (64).

2. The immersion energy storage lithium battery device according to claim 1, characterized in that: The outer surface of the shaft (62) is in rotatable contact with a damping rubber sleeve, and the damping rubber sleeve is fixedly fitted onto the inner wall of the perforation.

3. The immersion energy storage lithium battery device according to claim 1, characterized in that: The locking structure includes a plug rod (65), a lifting block (66), and a spring (67). The plug rod (65) is slidably sleeved through the inner cavity of one of the fixing blocks (63), and the plug rod (65) is located on one side of the shaft (62). The lifting block (66) is fixedly connected to one end of the plug rod (65), and the spring (67) is located outside one side of the plug rod (65). One end of the spring (67) is fixedly connected to the lifting block (66), and the other end of the spring (67) is fixedly connected to the fixing block (63).

4. The immersion energy storage lithium battery device according to claim 1, characterized in that: A sealing gasket is provided between the first extension frame (3) and the second extension frame (4). The sealing gasket is fixedly installed at the bottom of the first extension frame (3) and is located on the outside of each screw hole.

5. The immersion energy storage lithium battery device according to claim 1, characterized in that: The outer surface of one side of the upper end of the metal shell (1) is provided with a positive interface, a negative interface and a communication interface, and the positive interface, negative interface and communication interface are linearly and intermittently distributed.

6. The immersion energy storage lithium battery device according to claim 1, characterized in that: The metal casing (1) has multiple split lithium batteries (7) arranged linearly, uniformly and at intervals inside. Each split lithium battery (7) has a lower bracket (8) movably attached to the outer wall at the bottom. Each lower bracket (8) is fixedly installed on the inner wall at the bottom of the metal casing (1). Each split lithium battery (7) has an upper bracket (9) movably attached to the outer wall at the top. Each upper bracket (9) has a connecting rod (10) fixedly connected to the top. The top of each connecting rod (10) is fixedly connected to the inner wall of the cover plate (2).

7. The immersion energy storage lithium battery device according to claim 6, characterized in that: The interior of the metal casing (1) is filled with immersion coolant (11), which is immersed in the exterior of each split lithium battery (7), lower bracket (8), upper bracket (9), and connecting rod (10).

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