Battery heat insulation sheet based on ceramic nanofibers

Abstract

The utility model discloses a battery heat insulation sheet based on ceramic nanofibers, and relates to the field of battery heat insulation, the battery heat insulation sheet comprises a battery connecting piece, and a heat insulation mechanism is arranged on the side wall of the battery connecting piece. According to the battery heat insulation sheet based on the ceramic nanofibers, the interior of the battery heat insulation sheet can be sealed from the periphery, the upper part and the lower part by virtue of the coating layer, the isolation plate II and the isolation plate I, so that a sealed heat insulation space is formed by utilizing the ceramic nanofibers; therefore, when the heat of the battery is too high, the heat can be controlled in the battery heat insulation unit in time and cannot be controlled in other battery units, so that the heat is controlled in a minimum range, and the domino effect of the heat is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the field of battery heat insulation, in particular to a battery heat insulation sheet based on ceramic nanofibers. BACKGROUND

[0002] A battery heat insulation sheet is a material used in battery management systems, designed to prevent battery overheating and protect the battery from external heat sources. They are usually made of high-temperature-resistant materials that can effectively insulate heat, prolong battery life and improve safety.

[0003] A battery heat insulation sheet and a soft pack battery are disclosed in publication No. 202123427656.6, which is arranged between two battery cells to reduce heat transfer between the two sides of the battery cells. The battery heat insulation sheet is shaped and its edges extend outward to form antennae. However, the following problems still exist in actual use:

[0004] The battery heat insulation sheet and the soft pack battery of the above-mentioned patent avoid heat transfer between battery cells by being arranged at intervals, but when the heat of the battery spreads outward, this structure cannot close and insulate the outward spreading heat of the module, so that when the battery module has the problem of excessive heat spreading outward, it cannot timely close and protect the heat, and large-area overheating failure phenomenon is easy to occur. UTILITY MODEL CONTENT

[0005] In order to improve the problem of unavoidable heat spreading outward, the application provides a battery heat insulation sheet based on ceramic nanofibers.

[0006] The battery heat insulation sheet based on ceramic nanofibers provided by the application adopts the following technical scheme:

[0007] A battery heat insulation sheet based on ceramic nanofibers, comprising a battery connecting piece, a heat insulation mechanism is arranged on the side wall of the battery connecting piece;

[0008] The heat insulation mechanism comprises a coating layer, two sides of the coating layer are fixedly connected with an isolation plate one, the bottom of the coating layer is fixedly connected with a fixed frame, the inner wall of the fixed frame is fixedly connected with an isolation plate, the side wall of the coating layer is fixedly connected with an isolation plate two, the side wall of the isolation plate one close to the isolation plate two is fixedly connected with the side wall of the isolation plate two, and the side wall of the isolation plate is fixedly connected with a protective layer fixedly connected with the inner wall of the fixed frame.

[0009] By adopting the above technical scheme, the protective layer can be wrapped, so that the overall structure is more complete.

[0010] Preferably, the heat insulation mechanism further comprises a connecting plate fixedly connected to the battery connecting piece close to the side of the isolation plate one.

[0011] By adopting the technical scheme, the battery connecting piece is connected with the heat insulation mechanism, so that the structure forms an integral whole.

[0012] Preferably, the side of the connecting plate away from the battery connecting piece is fixedly connected with a side wall of the isolation plate.

[0013] By adopting the technical scheme, the heat insulation performance is more excellent through the multi-layer wrapping.

[0014] Preferably, the connecting plate is fixedly connected with a top plate on a side wall of the isolation plate.

[0015] By adopting the technical scheme, the connecting plate is fixedly connected with the top plate, so that the overall state is more stable.

[0016] Preferably, the bottom of the top plate is fixedly connected with the top of the coating layer.

[0017] By adopting the technical scheme, the coating layer is protected by the top plate.

[0018] Preferably, a side of the isolation plate away from the connecting plate is fixedly connected with a side wall of the isolation plate, and a side of the protective layer close to the isolation plate is fixedly connected with the isolation plate.

[0019] By adopting the technical scheme, the isolation plate is fixedly connected with the protective layer more closely through the isolation plate, so that the structural stability is improved.

[0020] Preferably, a side wall of the top plate is fixedly connected with a protective outer plate, a side wall of the protective outer plate close to the connecting plate is fixedly connected with the connecting plate, and a side of the fixed frame close to the isolation plate is fixedly connected with the isolation plate.

[0021] By adopting the technical scheme, the multiple plates are connected with each other to support each other.

[0022] Preferably, a side of the protective outer plate close to the top plate is clamped with the isolation plate.

[0023] By adopting the technical scheme, the isolation plate is protected by the protective outer plate, so that the heat overflow is prevented.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The protective layer is fixedly connected on both sides of the isolation plate, so that when the battery is overheated, the heat will be absorbed and isolated by the protective layer made of flexible ceramic nanofiber material, so that even if one battery has too high heat, the heat will not be transmitted to other batteries to affect the normal use of other batteries.

[0026] 2. By means of the paint layer, the isolation plate two, the isolation plate one respectively from four and up and down to the inside closed, thus using ceramic nanofiber to form a closed heat insulation space, so that when the battery appears heat too high phenomenon will also be timely controlled in this battery heat insulation unit, will not to other battery unit, so as to control the heat in the minimum range, so as to avoid the domino effect of heat. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the overall structure display drawing of the battery heat insulation sheet based on ceramic nanofiber of the application;

[0028] Figure 2 It is the overall explosion drawing of the battery heat insulation sheet based on ceramic nanofiber of the application;

[0029] Figure 3 It is the partial sectional view of the fixed frame of the battery heat insulation sheet based on ceramic nanofiber of the application;

[0030] Figure 4 It is the partial display drawing of the protective layer of the battery heat insulation sheet based on ceramic nanofiber of the application;

[0031] Figure 5 It is the partial sectional view of the paint layer of the battery heat insulation sheet based on ceramic nanofiber of the application;

[0032] Figure 6 It is the battery heat insulation sheet based on ceramic nanofiber of the application; Figure 5 It is the partial enlarged view of A in the battery heat insulation sheet based on ceramic nanofiber of the application.

[0033] Reference signs:

[0034] 1. Battery connecting piece;

[0035] 2. Heat insulation mechanism; 21, connecting plate; 22, top plate; 23, paint layer; 24, isolation plate one; 25, fixed frame; 26, isolation plate; 27, protective outer plate; 28, isolation plate two; 29, protective layer. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings Figures 1-6 The application will be further described in detail.

[0037] The embodiment of the application discloses a battery heat insulation sheet based on ceramic nanofiber.

[0038] Refer to Figure 1 A battery heat insulation sheet based on ceramic nanofiber, comprising a battery connecting piece 1 for connecting a plurality of battery heat insulation module units, and a heat insulation mechanism 2 arranged on the side wall of the battery connecting piece 1.

[0039] The worker connects the battery connecting piece 1 with the connecting plate 21, and then prepares for the heat insulation treatment.

[0040] With reference to Figure 2 , Figure 3 , Figure 4 The heat insulation mechanism 2 comprises a paint layer 23, the paint layer 23 is filled with aerogel paint, so that the gap at the connecting part is filled, the paint layer 23 is fixedly connected with the side wall upper end of the isolation plate 24 near the side of the paint layer 23, and the connecting part is sealed by the adhesive, so as to prevent heat from leaking out, the paint layer 23 is fixedly connected with the top of the fixed frame 25 near the side of the paint layer 23, so as to heat insulate and cover the top of the fixed frame 25, so as to shield the heat inside, the inner wall of the fixed frame 25 is fixedly connected with the top of the isolation plate 26, and a plurality of isolation plates 26 are horizontally and equidistantly arranged, so that the battery can be placed between every two isolation plates 26, thereby forming a battery pack, the paint layer 23 is fixedly connected with the side wall upper end of the isolation plate 28 near the side of the paint layer 23, and the connecting part is sealed by the adhesive, so as to avoid heat dissipation, the side wall near the side of the isolation plate 24 is fixedly connected with the side of the isolation plate 28 near the side of the isolation plate 24, and the connecting part is tightly connected by smearing the adhesive, so as to improve the heat insulation effect, the isolation plate 24 and the isolation plate 28 are made of ceramic nanofiber material, the side of the isolation plate 26 near the side of the isolation plate 28 is fixedly connected with the side of the protective layer 29 near the side of the isolation plate 26, the top of the protective layer 29 is fixedly connected with the inner wall of the fixed frame 25, and the protective layer 29 is made of ceramic nanofiber material, so that the heat transfer between the batteries is also weakened.

[0041] The worker places the battery in the isolation plate 26, then fixedly connects the isolation plate 26 with the fixed frame 25, then fixes the isolation plate 24 to the side wall of the isolation plate 26, and then fixedly connects the isolation plate 28 with the side wall of the fixed frame 25, so that the whole structure is connected completely, then covers the paint layer 23 on the top of the fixed frame 25, so as to form a complete closed space outside the fixed frame 25 through the isolation plate 28, the isolation plate 24 and the paint layer 23, and the ceramic nanofiber is adopted to seal and heat insulate the internal battery, so as to prevent the heat from spreading outward.

[0042] With reference to Figure 4 , Figure 5 , Figure 6The heat insulation mechanism 2 further comprises a connecting plate 21 fixedly connected to the battery connecting piece 1 near the one side of the isolation plate 1, the side wall of the connecting plate 21 is fixedly connected to the side of the isolation plate 1 near the connecting plate 21, so that the overall connection is more coherent, the side wall of the connecting plate 21 near the one side of the isolation plate 1 is fixedly connected to the side of the top plate 22 near the connecting plate 21, the bottom of the top plate 22 is fixedly connected to the top of the isolation plate 1, the connecting plate 21 and the top plate 22 are fastened by bolts at the connecting position, so as to externally protect the internal coating layer 23, the side of the top plate 22 near the coating layer 23 is fixedly connected to the side of the coating layer 23 near the top plate 22, so as to protect the outer wall of the top of the coating layer 23 by the top plate 22, so as to avoid damage to the outer wall, the side of the isolation plate 1 away from the connecting plate 21 is fixedly connected to the side of the isolation plate 2 near the isolation plate 1, so that the isolation plate 2 is more stable through the isolation plate 1, the side of the protective layer 29 near the isolation plate 1 is fixedly connected to the side of the isolation plate 1 near the protective layer 29, so that the protective layer 29 is fixedly connected to the isolation plate 2 and the isolation plate 1, so that the overall structure is more compact, the side of the top plate 22 near the protective outer plate 27 is fixedly connected to the side of the protective outer plate 27 near the top plate 22, so as to fix the isolation plate 2 by the protective outer plate 27, the side of the protective outer plate 27 near the connecting plate 21 is fixedly connected to the side of the connecting plate 21 near the protective outer plate 27, so that the protective outer plate 27 and the connecting plate 21 form an integral whole, the side of the fixed frame 25 near the isolation plate 2 is fixedly connected to the side of the isolation plate 2 away from the protective outer plate 27, so as to connect the fixed frame 25 from multiple sides, so that the connection is more stable, the side of the protective outer plate 27 near the top plate 22 is provided with a square groove, and the isolation plate 2 is clamped with the square groove, so that the isolation plate 2 is clamped with the protective outer plate 27.

[0043] Then the staff clamps the protective outer plate 27 and the isolation plate 2, the protective outer plate 27 is fixedly connected to the side wall of the top plate 22, and then the top plate 22 is fixedly connected to the connecting plate 21, so that the protective outer plate 27, the isolation plate 2, the connecting plate 21 form a protective shell at the outermost part, so as to externally protect the ceramic nanofiber, so that the ceramic nanofiber protective layer will not be abraded when the outside is abraded.

[0044] The implementation principle of the battery heat insulation sheet based on the ceramic nanofiber in the embodiment of the application is as follows:

[0045] The worker places the battery inside the isolation plate 26, then fixes the isolation plate 26 with the fixed frame 25, then sticks the isolation plate one 24 to the side wall of the isolation plate 26, then fixes the isolation plate two 28 with the side wall of the fixed frame 25, then covers the paint layer 23 on the top of the fixed frame 25, seals and insulates the internal battery by using ceramic nanometer fiber, then the worker clamps the protection outer plate 27 with the isolation plate two 28, fixes the protection outer plate 27 with the side wall of the top plate 22, then fixes the top plate 22 with the connecting plate 21, so that the protection outer plate 27, the isolation plate two 28 and the connecting plate 21 protect the ceramic nanometer fiber outside, so that the ceramic nanometer fiber protection layer is not damaged when the outside is abraded.

[0046] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A battery heat insulation sheet based on ceramic nanofibers, comprising a battery connector (1), characterized in that: The battery connector (1) has a heat insulation mechanism (2) on its side wall; The heat insulation mechanism (2) includes a coating layer (23), with isolation plates (24) fixedly connected to both sides of the coating layer (23), a fixed frame (25) fixedly connected to the bottom of the coating layer (23), an isolation plate (26) fixedly connected to the inner wall of the fixed frame (25), an isolation plate (28) fixedly connected to the side wall of the coating layer (23), the side of the isolation plate (24) near the isolation plate (28) fixedly connected to the side wall of the isolation plate (28), and a protective layer (29) fixedly connected to the side wall of the isolation plate (26) and fixedly connected to the inner wall of the fixed frame (25).

2. The battery heat insulation sheet based on ceramic nanofibers according to claim 1, characterized in that: The heat insulation mechanism (2) also includes a connecting plate (21) fixedly connected to the side of the battery connector (1) near the isolation plate (24).

3. A battery heat insulation sheet based on ceramic nanofibers according to claim 2, characterized in that: The side of the connecting plate (21) away from the battery connector (1) is fixedly connected to the side wall of the isolation plate (24).

4. A battery heat insulation sheet based on ceramic nanofibers according to claim 3, characterized in that: The connecting plate (21) is fixedly connected to the top plate (22) which is fixedly connected to the top of the isolation plate (24) on the side wall near the isolation plate (24).

5. A battery heat insulation sheet based on ceramic nanofibers according to claim 4, characterized in that: The bottom of the top plate (22) is fixedly connected to the top of the coating layer (23).

6. A battery heat insulation sheet based on ceramic nanofibers according to claim 1, characterized in that: The side of the isolation plate (24) away from the connecting plate (21) is fixedly connected to the side wall of the isolation plate (26), and the side of the protective layer (29) close to the isolation plate (24) is fixedly connected to the isolation plate (24).

7. A battery heat insulation sheet based on ceramic nanofibers according to claim 4, characterized in that: The top plate (22) is fixedly connected to the side wall of the protective outer plate (27). The side wall of the protective outer plate (27) is fixedly connected to the side of the connecting plate (21) near the protective outer plate (27). The fixed frame (25) is fixedly connected to the side of the isolation plate (28) near the second isolation plate (28).

8. A battery heat insulation sheet based on ceramic nanofibers according to claim 7, characterized in that: The protective outer plate (27) is snapped into the isolation plate two (28) on the side near the top plate (22).

Images