Heat preservation structure of energy storage battery box

Abstract

The utility model discloses an energy storage battery box heat preservation structure which comprises a heat preservation cover, a base and a heat preservation shell, the heat preservation cover is installed at the top of an energy storage battery box, the base is installed at the bottom of the energy storage battery box, and the heat preservation shell wraps a box body between the heat preservation cover and the base. A plurality of groups of positioning hooks are arranged on the back of the energy storage battery box in parallel; the heat preservation shell is divided into a plurality of heat preservation sections according to the positions of the positioning hooks; each heat preservation section comprises a front self-heating heat preservation groove plate and a rear self-heating heat preservation groove plate, the front self-heating heat preservation groove plate is in a groove shape matched with the outline of the front face of the energy storage battery box, and the rear self-heating heat preservation groove plate is in a groove shape matched with the outline of the rear face of the energy storage battery box. Through the mode, the energy storage battery box can effectively prevent heat loss during working, reduce the influence of a cold environment on charging and discharging actions, and improve the working efficiency of the energy storage battery box.

Description

Technical Field

[0001] The utility model relates to the field of energy storage equipment, in particular to a heat preservation structure of an energy storage battery box. Background Art

[0002] The working efficiency of the battery pack will be significantly reduced or even unable to work under low temperature conditions. Therefore, in order to solve the problem of the energy storage battery box working under low temperature conditions, a special heating film is traditionally attached to the bottom and sides of the battery box. Although this method can quickly increase the temperature inside the battery box, it will also dissipate heat to the surrounding environment, resulting in a large overall heat loss. In addition, the energy of the heating film comes from the battery box, which will significantly reduce the overall energy utilization efficiency of the energy storage battery box. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a thermal insulation structure for an energy storage battery box, which can reduce heat loss during heating and improve the overall energy utilization efficiency of the energy storage battery box.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide an energy storage battery box insulation structure, the energy storage battery box insulation structure includes: an insulation cover, a base and an insulation shell, the insulation cover is installed on the top of the energy storage battery box, the base is installed on the bottom of the energy storage battery box, the insulation shell covers the box body between the insulation cover and the base, a plurality of groups of positioning hooks are arranged in parallel on the back of the energy storage battery box, the insulation shell is divided into a plurality of insulation sections according to the position of the positioning hooks, and the plurality of groups of positioning hooks are clamped on two adjacent insulation sections respectively. The insulation sections are arranged between the sections or between the bottom of the insulation cover and the top of the first insulation section; each insulation section includes a front self-heating insulation groove plate and a rear self-heating insulation groove plate, the front self-heating insulation groove plate is a groove shape that matches the front contour of the energy storage battery box, and the rear self-heating insulation groove plate is a groove shape that matches the rear contour of the energy storage battery box. The front self-heating insulation groove plate and the rear self-heating insulation groove plate are spliced together to form an insulation section that wraps the energy storage battery box body at the corresponding position, and the multiple insulation sections are vertically stacked together relying on the body of the energy storage battery box to form the entire insulation shell.

[0005] In a preferred embodiment of the present invention, the front self-heating and heat-insulating trough plate has the same structure as the rear self-heating and heat-insulating trough plate, including a sheet metal outer shell, an insulation layer, a PI heating film, and an aluminum alloy inner shell. The sheet metal outer shell and the aluminum alloy inner shell together enclose an insulation layer filled with flame-retardant heat-insulating material. The PI heating film is attached to the back of the aluminum alloy inner shell corresponding to the groove bottom. The top ends of the groove walls on both sides of the sheet metal outer shell corresponding to the groove shape are folded vertically outward to form a splicing edge. The front self-heating and heat-insulating trough plate and the rear self-heating and heat-insulating trough plate are spliced together by the splicing edge to wrap the box body at the corresponding position of the energy storage battery box. A heat-saturating frame is also provided on the inside of the aluminum alloy inner shell. The heat-saturating frame includes horizontal ribs, vertical ribs, and side ribs. The horizontal ribs are arranged in the middle of the groove bottom of the corresponding groove shape. The vertical ribs are arranged symmetrically on the groove bottom with respect to the horizontal ribs. The side ribs are arranged on the inner side of the groove walls on both sides of the groove shape. The horizontal ribs, vertical ribs, and side ribs are all made of aluminum alloy material.

[0006] In a preferred embodiment of the present invention, a plurality of concave hanging strips are provided on the plate surfaces of the front self-heating and heat-insulating trough plate and the rear self-heating and heat-insulating trough plate.

[0007] In a preferred embodiment of the present invention, the heat-insulating cover comprises a sheet metal outer shell, a heat-insulating layer and an aluminum alloy inner shell. The sheet metal outer shell and the aluminum alloy inner shell together enclose a heat-insulating layer filled with heat-insulating material.

[0008] The beneficial effects of the present invention are as follows: the present invention optimizes the existing thermal insulation structure of the energy storage battery box, and wraps the entire energy storage battery box in a fully enclosed manner to reduce the influence of the external temperature on the internal energy storage battery, and can heat the internal environment so that the battery can work at a normal temperature. This not only solves the problems of reduced working efficiency and abnormal charging and discharging of the energy storage battery under low-temperature transition, but also reduces heat loss during the heating process, effectively improving the overall energy utilization efficiency of the energy storage battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the utility model;

[0010] Figure 2 is a schematic diagram of the three-view structure of the illustrated embodiment;

[0011] Figure 3 is a schematic diagram of the hierarchical structure of the fuselage shell of the embodiment;

[0012] The markings of the components in the accompanying drawings are as follows:

[0013] 1. Insulation cover, 2. Front self-heating insulation trough plate, 3. Rear self-heating insulation trough plate, 4. Base, 5. Hanging

[0014] 6. Positioning hook;

[0015] 201. Sheet metal shell, 202. Insulation layer, 203. PI heating film, 204. Aluminum alloy inner shell, 205.

[0016] Horizontal reinforcement, 206. Vertical reinforcement, 207. Side reinforcement, 208. Splicing edge. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0018] See also Figure 1 and Figure 2 , the embodiments of the present utility model include:

[0019] A thermal insulation structure for an energy storage battery box, comprising: a thermal insulation cover 1, a base 4, and a thermal insulation shell. The thermal insulation cover 1 is mounted on the top of the energy storage battery box, the base 4 is mounted on the bottom of the energy storage battery box, the thermal insulation shell covers the box body between the thermal insulation cover 1 and the base 4, and four groups of parallel positioning hooks 6 are provided on the back of the energy storage battery box. The thermal insulation shell is divided into four thermal insulation sections according to the distribution position of the positioning hooks 6, wherein three groups of positioning hooks 6 are clamped between two adjacent thermal insulation sections, and one group of positioning hooks 6 is clamped between two adjacent thermal insulation sections. It is held between the bottom of the insulation cover 1 and the top of the first insulation section; each insulation section includes a front self-heating insulation groove plate 2 and a rear self-heating insulation groove plate 3, the front self-heating insulation groove plate 2 is a groove shape that matches the front contour of the energy storage battery box, and the rear self-heating insulation groove plate 3 is a groove shape that matches the rear contour of the energy storage battery box. The front self-heating insulation groove plate 2 and the rear self-heating insulation groove plate 3 are spliced together to just form an insulation section that wraps the energy storage battery box body at the corresponding position, and the four insulation sections are vertically stacked together to form the entire insulation shell.

[0020] The front self-heating insulation trough plate 2 has the same structure as the rear self-heating insulation trough plate 3, including a sheet metal shell 201, an insulation layer 202, a PI heating film 203 and an aluminum alloy inner shell 204. The sheet metal shell 201 and the aluminum alloy inner shell 204 together surround an insulation layer 202 filled with flame-retardant modified polyurethane foam. The PI heating film 203 is attached to the back of the bottom of the groove corresponding to the groove shape of the aluminum alloy inner shell 204. The top of the groove walls on both sides of the sheet metal shell 201 corresponding to the groove shape are folded vertically outward to form a splicing edge 208. The front self-heating insulation trough plate 2 and the rear self-heating insulation trough plate 3 are closed and aligned by the splicing edge 208 to wrap the body of the energy storage battery box and then fixed together with screws. In this way, when the front and rear self-heating insulation slot panels 2 and 3 are closed, the box can be heated as needed, increasing the temperature of the energy storage battery's operating environment. Furthermore, due to the insulation layer provided between the front and rear self-heating insulation slot panels 2 and 3, heat is only transmitted inward in a single direction, effectively reducing heat loss caused by heat transfer to the surrounding area due to the low ambient temperature, significantly improving the energy efficiency of the entire system. Furthermore, the aluminum alloy inner shell 204 has excellent thermal conductivity, which allows it to quickly conduct heat to the surrounding area during heating, achieving a balanced heating effect.

[0021] A heat equalizing rack is also provided on the inside of the aluminum alloy inner shell 204. The heat equalizing rack includes horizontal ribs 205, vertical ribs 206 and side ribs 207. The horizontal ribs 205 are arranged in the middle position of the bottom of the corresponding groove shape, and the vertical ribs 206 are arranged symmetrically on the bottom of the groove with respect to the horizontal ribs 205. The side ribs 207 are arranged on the inner side of the groove walls on both sides of the groove shape. The horizontal ribs 205, vertical ribs 206 and side ribs 207 are all made of aluminum alloy materials. The use of this structure can further improve the uniformity during heating and prevent the heat of the PI heating film 203 from being directly transferred to the box body after the aluminum alloy inner shell 204 is directly attached to the battery box, causing the local temperature on the box body to be too high. After adding the heat equalizing rack, the heat of the PI heating film 203 can first be evenly transferred to the surrounding area through the aluminum alloy inner shell 204, and then heat the gap formed by the isolation of the heat equalizing rack. The air convection in the gap is used to form a uniform thermal environment around the box body, effectively avoiding the problem of local overheating.

[0022] The front self-heating insulation trough plate 2 and the rear self-heating insulation trough plate 3 are both provided with two concave hanging bars 5. The purpose of providing the hanging bars 5 is to hang the flame-retardant modified polyurethane foam filled in the insulation layer through the hanging bars 5 protruding inward, thereby preventing the flame-retardant modified polyurethane foam from sliding downward.

[0023] The insulation cover 1 comprises a sheet metal outer shell, an insulation layer, and an aluminum alloy inner shell. Together, the sheet metal outer shell and the aluminum alloy inner shell enclose an insulation layer filled with flame-retardant modified polyurethane foam. This structure allows the insulation cover 1 to cover the top of the energy storage battery box, utilizing convection heat from the hot air generated by the insulation section below to heat the interior of the cover. The excellent insulation provided by the cover effectively prevents heat loss to the surrounding area, which could reduce overall energy efficiency.

[0024] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An energy storage battery box insulation structure, characterized in that: The energy storage battery box insulation structure includes: an insulation cover, a base, and an insulation shell. The insulation cover is installed on the top of the energy storage battery box, the base is installed on the bottom of the energy storage battery box, and the insulation shell covers the box body between the insulation cover and the base. A plurality of groups of positioning hooks are arranged in parallel on the back of the energy storage battery box. The insulation shell is divided into a plurality of insulation sections according to the positions of the positioning hooks. The plurality of groups of positioning hooks are respectively clamped between two adjacent insulation sections or between the bottom of the insulation cover and the top of the first insulation section. Each insulation section includes a front self-heating insulation groove plate and a rear self-heating insulation groove plate. The front self-heating insulation groove plate is a groove shape that matches the front contour of the energy storage battery box, and the rear self-heating insulation groove plate is a groove shape that matches the rear contour of the energy storage battery box. The front self-heating insulation groove plate and the rear self-heating insulation groove plate are spliced together to form an insulation section that wraps the energy storage battery box body at the corresponding position. The multiple insulation sections are vertically stacked together relying on the body of the energy storage battery box to form the entire insulation shell.

2. The thermal insulation structure of the energy storage battery box according to claim 1, characterized in that: The front self-heating insulation trough plate has the same structure as the rear self-heating insulation trough plate, including a sheet metal outer shell, an insulation layer, a PI heating film and an aluminum alloy inner shell. The sheet metal outer shell and the aluminum alloy inner shell together surround an insulation layer filled with flame-retardant insulation material. The PI heating film is attached to the back of the bottom of the groove corresponding to the groove shape of the aluminum alloy inner shell. The top ends of the groove walls on both sides of the sheet metal outer shell corresponding to the groove shape are folded vertically outward to form a splicing edge. The front self-heating insulation trough plate and the rear self-heating insulation trough plate are spliced together through the splicing edge to wrap the box body of the energy storage battery box at the corresponding position.

3. The thermal insulation structure of the energy storage battery box according to claim 2, characterized in that: A heat equalizing rack is also provided on the inner side of the aluminum alloy inner shell.

4. The thermal insulation structure of the energy storage battery box according to claim 3, characterized in that: The heat soaking rack includes horizontal ribs, vertical ribs and side ribs. The horizontal ribs are arranged in the middle position of the bottom of the corresponding groove shape, the vertical ribs are arranged symmetrically on the bottom of the groove with respect to the horizontal ribs, and the side ribs are arranged on the inner sides of the groove walls on both sides of the groove shape. The horizontal ribs, vertical ribs and side ribs are all made of aluminum alloy.

5. The thermal insulation structure of the energy storage battery box according to claim 1, characterized in that: The front self-heating and heat-insulating trough plate and the rear self-heating and heat-insulating trough plate are both provided with a plurality of concave hanging strips on their plate surfaces.

6. The thermal insulation structure of the energy storage battery box according to claim 1, characterized in that: The heat-insulating cover comprises a sheet metal outer shell, a heat-insulating layer and an aluminum alloy inner shell. The sheet metal outer shell and the aluminum alloy inner shell together enclose a heat-insulating layer filled with heat-insulating material.

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