Heat preservation cover

Abstract

The heat preservation cover comprises a body and a shielding part, the body is used for wrapping a battery, the body is provided with a through opening for an external connection part to penetrate through, the shielding part is arranged on the periphery of the through opening and connected with the body, and the shielding part is used for being attached to the external connection part penetrating through the through opening. According to the utility model, the thermal insulation effect at the external part is improved, and the heat exchange between the battery and the external environment is reduced as far as possible, so that the thermal insulation effect is improved and the temperature drop rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a heat preservation cover. Background Art

[0002] As electric vehicles become more and more popular, people have higher and higher requirements for electric vehicles. The battery life of electric vehicles is a very important indicator, especially in winter. The low-temperature charging and discharging ability of the battery is an important indicator affecting the battery life of electric vehicles in winter. The existing battery insulation effect is insufficient, which affects the battery life in winter. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a heat preservation cover to improve the heat preservation effect at the external component and minimize the heat exchange between the battery and the external environment to improve the heat preservation effect and reduce the temperature drop rate.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A heat preservation cover comprises a main body and a shielding part, wherein the main body is used to wrap a battery, the main body is provided with a through hole for external components to pass through, the shielding part is arranged at the periphery of the through hole and connected to the main body, and the shielding part is used to fit the external components passing through the through hole.

[0006] In one embodiment, the shielding portion is integrally connected to the body, and the shielding portion is connected to an edge of the through opening and covers the through opening.

[0007] In one embodiment, the through opening has a through direction, the shielding portion includes a closing ring extending in the through direction, and the closing ring is provided with a tightening component for tightening.

[0008] In one embodiment, the tightening component is an adjusting belt and / or an elastic ring.

[0009] In one embodiment, the adjustment belt includes a first adjustment belt, and the first adjustment belt is inserted into the closing ring along the circumference of the closing ring.

[0010] In one embodiment, the tightening component includes a second adjusting belt; the closing ring has a first direction, and the first direction is perpendicular to the through direction; along the first direction, the closing ring has two side walls arranged opposite to each other; the second adjusting belt passes through the closing ring along the first direction, and is used to tighten the two side walls of the closing ring along the first direction.

[0011] In one embodiment, the closing ring is connected to a plurality of the second adjustment belts, the closing ring has a second direction, the second direction is perpendicular to the first direction and the through direction in pairs, and the plurality of the second adjustment belts are arranged along the second direction.

[0012] In one embodiment, the adjustment strap is provided with a buckle for adjusting and fixing the adjustment strap.

[0013] In one embodiment, the wall thickness of the main body is a, 5mm≤a≤30mm; and / or the wall thickness of the shielding portion is b, 5mm≤b≤30mm.

[0014] In one embodiment, 10 mm≤a≤20 mm; and / or 10 mm≤b≤20 mm.

[0015] The beneficial effect of the utility model is that by arranging a shielding portion on the outer periphery of the through-hole, the shielding portion can fit the external components passing through the through-hole, thereby improving the insulation effect of the battery at the external components, and reducing the heat exchange between the battery and the external environment as much as possible, so as to improve the insulation effect and reduce the temperature drop rate, so that the battery's endurance in winter can be maintained at a high level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a heat preservation cover according to an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a heat preservation cover of another embodiment of the utility model;

[0019] Figure 3 It is a partial enlarged view of a heat preservation cover of another embodiment of the utility model;

[0020] Figure 4 It is a partial enlarged view of a heat preservation cover of another embodiment of the utility model;

[0021] Figure 5a yes Figure 2 A schematic diagram of the structure after the closing ring is tightened;

[0022] Figure 5b yes Figure 4 A schematic diagram of the structure after the closing ring is tightened;

[0023] Figure 6 It is a partial enlarged view of a heat preservation cover of another embodiment of the utility model;

[0024] Figure 7 yes Figure 2 Schematic diagram of the structure after the thermal insulation cover is unfolded.

[0025] In the figure: 1. main body; 11. through-hole; 12. cover; 13. pre-folding part; 14. window; 15. installation opening; 2. shielding part; 21. closing ring; 3. tightening component; 31. adjusting belt; 311. first adjusting belt; 312. second adjusting belt; 32. elastic ring; 4. buckle; 5. colloid; 6. window cover; 7. external parts. DETAILED DESCRIPTION

[0026] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0029] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0030] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0031] The utility model provides a heat preservation cover, such as Figures 1 to 6 As shown, it comprises a body 1 and a shielding portion 2, the body 1 is used to wrap a battery (not shown), the body 1 is provided with a through hole 11 for passing an external component 7, the shielding portion 2 is arranged at the periphery of the through hole 11 and connected to the body 1, and the shielding portion 2 is used to fit the external component 7 passing through the through hole 11. In this embodiment, the through hole 11 is used for passing the battery external components 7 such as high and low voltage cables and heat exchange pipelines, and the through hole 11 of the prior art is usually set larger to avoid misalignment and shielding due to errors during production and installation, which affects the connection of the external component 7. The through hole 11 of the prior art with a larger size will result in poor thermal insulation performance of the battery at the through hole 11. In this embodiment, a shielding portion 2 is provided on the main body 1 at the periphery of the through-opening 11, and the shielding portion 2 is used to fit the external component 7 passing through the through-opening 11. Therefore, when the through-opening 11 is slightly larger in size, the external component 7 passing through the through-opening 11 can be fitted by the shielding portion 2 to shield the gap between the external component 7 and the through-opening 11, thereby reducing the heat dissipation at the through-opening 11, improving the heat preservation effect of the heat preservation cover, and allowing the battery life to remain at a high level in winter.

[0032] As an implementation method, Figure 1 As shown, the shielding part 2 is integrally connected with the body 1, the structure is simpler, and a gap can be avoided at the connection between the shielding part 2 and the body 1, thereby reducing heat dissipation; the shielding part 2 is connected to the edge of the through hole 11 and covers the through hole 11. Among them, the shielding part 2 can be bent and deformed, and when the external component 7 (at Figure 1 When the shielding portion 2 passes through the through-opening 11 (not shown in the figure), the shielding portion 2 can be deformed in the direction indicated by the arrow to facilitate the passage of the external component 7; after the external component 7 passes through, the shielding portion 2 returns to its original shape to fit the external component 7, and shields the through-opening 11 again, thereby reducing the rate of heat loss.

[0033] As an implementation method, Figures 2 to 6 As shown, the through-port 11 has a through-direction Z, and the shielding portion 2 includes a closing ring 21 extending in the through-direction Z, and a tightening component 3 for tightening is provided on the closing ring 21. Thus, when an external component 7 passes through the through-port 11, the closing ring 21 can be tightened and fitted to the external component 7 through the tightening component 3 to minimize the heat exchange between the battery and the external environment, thereby improving the heat preservation effect and reducing the temperature drop rate; of course, when no external component 7 passes through the through-port 11, the closing ring 21 can also be tightened by itself through the tightening component 3 to reduce heat dissipation and prevent foreign matter from falling into the heat preservation cover through the through-port 11.

[0034] As an embodiment, the tightening component 3 is an adjustment belt 31 and / or an elastic ring 32. Specifically, Figures 2 to 5bAs shown, the tightening component 3 is an adjusting belt 31. After the external component 7 passes through the closing ring 21, the closing ring 21 is tightened by the adjusting belt 31, so that the closing ring 21 fits the external component 7, thereby improving the heat preservation effect and reducing the temperature drop rate; Figure 6 As shown, the tightening component 3 is an elastic ring 32, which is connected to the closing ring 21. In the natural state, the inner size of the elastic ring 32 is smaller than the external component 7 (such as a cable, Figure 6 When the external component 7 passes through the closing ring 21, the elastic ring 32 is elastic and can be appropriately expanded. When the installation is completed, the elastic ring 32 fits the external component 7, thereby improving the heat preservation effect and reducing the temperature drop rate.

[0035] As an implementation method, Figure 4 As shown, the adjustment belt 31 includes a first adjustment belt 311, and the first adjustment belt 311 is arranged on the closing ring 21 along the circumference of the closing ring 21. Figure 4 (not shown) is taken as an example of a cable, when the cable is passed through the closing ring 21, and the tightening component 3 is an adjustment belt 31, in this embodiment, by tightening the first adjustment belt 311, the closing ring 21 can be surrounded and fitted with the external component 7, and the tightened state is as shown in FIG. Figure 5b As shown; among them, Figure 4 and Figure 5b As shown, when multiple threads (such as Figure 5b When two cables are passed through the closing ring 21, the first adjusting belt 311 is used to tighten the closing ring 21, and there will be a gap between the two adjacent cables, and the thermal insulation effect is not optimal; when one cable (not shown) is passed through the closing ring 21, the first adjusting belt 311 can be used to tighten the closing ring 21, and the thermal insulation effect is good.

[0036] As an implementation method, Figure 2 and Figure 3 As shown, the tightening component 3 includes a second adjustment belt 312; the closing ring 21 has a first direction X, and the first direction X is perpendicular to the through direction Z; along the first direction X, the closing ring 21 has two side walls arranged opposite to each other; the second adjustment belt 312 passes through the closing ring 21 along the first direction X, and is used to tighten the two side walls of the closing ring 21 along the first direction X. Figure 2 , Figure 4 , Figure 5a and Figure 5b As shown, when a plurality of external components 7 (such as a plurality of cables) are inserted into the closing ring 21, the cables are usually cylindrical. When tightened, such as by using Figure 4 and Figure 5b The first adjustment belt 311 shown in the figure tightens the closing ring 21. Even if the cables are close to each other, there are still gaps between the cables. Figure 5aAs shown, the second adjustment belt 312 is set between the two cables. Tightening the second adjustment belt 312 can make the two cables fit the closing ring 21 in the circumferential direction, further improving the heat preservation effect and reducing the temperature drop rate. That is, in the case where multiple cables are passed through the closing ring 21, the closing ring 21 can be tightened by setting the second adjustment belt 312 between the two cables, which has a good heat preservation effect; in the case where one cable is passed through the closing ring 21, the closing ring 21 can be tightened by using the first adjustment belt 311, or by using one cable passed between two second adjustment belts 312, which has a good heat preservation effect.

[0037] As an implementation method, Figure 3 As shown, the closing ring 21 is connected to a plurality of second adjustment belts 312, and the closing ring 21 has a second direction Y, and the second direction Y is perpendicular to the first direction X and the through direction Z in pairs, and the plurality of second adjustment belts 312 are arranged along the second direction Y. When n cables are passed through the closing ring 21, in this embodiment, the closing ring 21 is connected to (n-1) second adjustment belts 312, and the cables and the second adjustment belts 312 are arranged in a staggered manner, so that each cable can be fitted by the closing ring 21 in the circumferential direction. Specifically, as Figure 2 , Figure 4 , Figure 5a and Figure 5b As shown, when there are n cables, you can choose Figure 2 and Figure 5a , using (n-1) second adjustment belts 312, Figure 4 and Figure 5b The first adjustment belt 311 has better shielding performance and better heat preservation effect.

[0038] As an implementation method, Figures 2 to 5b As shown, a buckle 4 is provided on the adjusting belt 31 for adjusting and fixing the adjusting belt 31 so as to tighten the closing ring 21 of the adjusting belt 31 .

[0039] As an implementation manner, the wall thickness of the main body 1 is a, 5mm≤a≤30mm; and / or the wall thickness of the shielding portion 2 is b, 5mm≤b≤30mm.

[0040] As an implementation manner, 10 mm ≤ a ≤ 20 mm; and / or 10 mm ≤ b ≤ 20 mm.

[0041] As an implementation method, Figure 7 As shown, the body 1 comprises a plurality of covers 12 respectively used to fit on the surfaces of the battery, and any two adjacent covers 12 are integrally connected or detachably connected. Specifically, the detachable connection can be achieved by Velcro or zipper.

[0042] As an implementation method, Figure 7As shown, a pre-folding portion 13 for easy bending is provided between the cover surface 12 and an adjacent cover surface 12 integrally connected to the edge of the cover surface 12. The pre-folding portion 13 can be formed by sewing or external force.

[0043] As an implementation mode, the body 1 is bonded to the battery surface through the colloid 5. The colloid 5 can be a double-sided adhesive with a peel strength of ≥ 0.6 N / mm.

[0044] As an implementation method, Figure 2 and Figure 7 As shown, the body 1 includes a window 14 for hanging or repairing the battery, and the body 1 is also connected to a window cover 6 for opening or closing the window 14, and the edge of the window cover 6 is fixedly connected or detachably connected to the corresponding edge of the window 14. The detachable connection can be connected by Velcro, and the fixed connection can be sewn.

[0045] As an implementation mode, the battery is installed and fixed by means of an installation component (such as a screw connection) (such as installed and fixed on a mounting surface of the electric vehicle), and the body 1 includes an installation opening 15 for allowing the installation component to pass through.

[0046] As an implementation manner, the window cover 6, the shielding portion 2 and the body 1 are made of the same material and have the same thickness.

[0047] As an implementation method, 10mm≤a, 10mm≤b, the shielding part 2 and the body 1 are made of the same material. The heat preservation cover can keep the temperature of the battery pack above 0℃ when placed at an ambient temperature of -20℃ for more than 10 hours. Among them, the temperature drop rate is ≤1.5℃ / h, and the temperature drop rate of other heat preservation covers is generally above 2.5℃ / h.

[0048] As an implementation mode, the main body 1 is composed of a fabric and a core material, and the flame retardancy can reach the horizontal HB and vertical V-0 levels, and the thermal conductivity of the core material is ≤0.035W / m·k.

[0049] The utility model provides a shielding portion 2 on the periphery of the through-hole 11 so that the shielding portion 2 can fit the external component 7 passing through the through-hole 11, thereby improving the heat preservation effect of the battery at the external component 7 and minimizing the heat exchange between the battery and the external environment, thereby improving the heat preservation effect and reducing the temperature drop rate, so that the battery's endurance in winter can be maintained at a high level.

[0050] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A heat preservation cover, characterized in that: The invention comprises a main body (1) and a shielding portion (2), wherein the main body (1) is used to wrap a battery, the main body (1) is provided with a through-hole (11) for allowing an external component (7) to pass through, the shielding portion (2) is arranged on the outer periphery of the through-hole (11) and is connected to the main body (1), and the shielding portion (2) is used to fit the external component (7) passing through the through-hole (11).

2. The heat-insulating cover according to claim 1, characterized in that: The shielding portion (2) is integrally connected to the main body (1); the shielding portion (2) is connected to the edge of the through opening (11) and covers the through opening (11).

3. The heat-insulating cover according to claim 1, characterized in that: The through opening (11) has a through direction (Z), the shielding portion (2) comprises a closing ring (21) extending in the through direction (Z), and the closing ring (21) is provided with a tightening component (3) for tightening.

4. The heat-insulating cover according to claim 3, characterized in that: The tightening component (3) is an adjustment belt (31) and / or an elastic ring (32).

5. The heat-insulating cover according to claim 4, characterized in that: The adjustment belt (31) comprises a first adjustment belt (311), and the first adjustment belt (311) is passed through the closing ring (21) along the circumferential direction of the closing ring (21).

6. The heat-insulating cover according to claim 4, characterized in that: The tightening component (3) comprises a second adjusting belt (312); the closing ring (21) has a first direction (X), and the first direction (X) is perpendicular to the through direction (Z); along the first direction (X), the closing ring (21) has two side walls arranged opposite to each other; the second adjusting belt (312) passes through the closing ring (21) along the first direction (X) and is used to tighten the two side walls of the closing ring (21) along the first direction (X).

7. The heat-insulating cover according to claim 6, characterized in that: The closing ring (21) is connected to a plurality of the second adjustment belts (312), the closing ring (21) has a second direction (Y), the second direction (Y) is perpendicular to the first direction (X) and the through direction (Z), and the plurality of the second adjustment belts (312) are arranged along the second direction (Y).

8. The heat-insulating cover according to claim 4, characterized in that: The adjusting belt (31) is provided with a buckle (4) for adjusting and fixing the adjusting belt (31).

9. The heat-insulating cover according to any one of claims 1 to 8, characterized in that: The wall thickness of the main body (1) is a, 5mm≤a≤30mm; and / or the wall thickness of the shielding portion (2) is b, 5mm≤b≤30mm.

10. The heat-insulating cover according to claim 9, characterized in that: 10mm≤a≤20mm; and / or 10mm≤b≤20mm.

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