Energy storage cabinet with heat insulation and heat dissipation structure
By combining phase change materials and air-cooled structures in the energy storage cabinet, the problems of heat insulation and heat dissipation in the energy storage cabinet are solved, achieving efficient heat insulation and heat dissipation, reducing the risk of thermal runaway, and preventing fires from spreading.
Patent Information
- Application Number
- CN202520106475.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing energy storage cabinets have poor insulation and complex, inconspicuous heat dissipation structures, which can easily lead to thermal runaway and pose safety hazards such as fire and explosion.
It employs a heat insulation panel with phase change material and an air-cooled structure, combined with the high thermal conductivity of carbon nanotubes, to achieve heat absorption, energy storage and thermal insulation, and dissipates heat through a fan.
It improves the overall heat insulation and heat dissipation effect of the energy storage cabinet, reduces the risk of thermal runaway, prevents the spread of fire, and has a simple structure and good heat dissipation effect.
Smart Images
Figure CN223884479U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of energy storage, in particular to an energy storage cabinet with heat insulation and heat dissipation structure. BACKGROUND
[0002] The energy storage cabinet is a cabinet structure for storing electric energy, and generally has a plurality of battery modules arranged inside for storing electric energy generated by solar energy, wind energy and the like or directly storing electric energy. The energy storage cabinet supplies the stored electric energy to electrical equipment as a power source. During power supply, the battery modules generate a large amount of heat energy, which cannot be effectively dissipated, resulting in a sharp rise in the internal temperature of the energy storage cabinet, affecting the normal use of the energy storage cabinet, and even causing a fire. Therefore, heat dissipation inside the energy storage cabinet is very important.
[0003] The existing energy storage cabinet generally uses ordinary plates for heat insulation, and the heat insulation effect is poor. The heat dissipation structure generally uses a fan for heat dissipation or a water cooling structure for heat dissipation, and the heat dissipation structure is complex and the heat dissipation effect is not obvious. When the temperature of the battery rises due to failure, the energy storage cabinet cannot be well insulated and dissipated, and the thermal runaway phenomenon is easy to occur, causing a fire or explosion, and there is a safety hazard. CONTENT OF THE INVENTION
[0004] The present application provides an energy storage cabinet with heat insulation and heat dissipation structure, which improves the overall heat insulation and heat dissipation effect of the cabinet by arranging heat insulation plates with phase change materials and using a fan for heat dissipation.
[0005] In order to achieve the above purpose, the present application provides an energy storage cabinet with heat insulation and heat dissipation structure, which comprises a cabinet body, a battery placement chamber, a control chamber, a heat insulation plate, an inlet fan and an outlet fan, wherein: the cabinet body is a box-shaped structure composed of a top surface, a bottom surface and four side panels; the battery placement chamber and the control chamber are arranged inside the cabinet body, and the control chamber is arranged above the battery placement chamber; the inlet fan is arranged on the side panel on one side of the cabinet body, and the outlet fan is arranged on the side panel on the opposite side of the cabinet body; the heat insulation plate comprises a heat insulation layer plate arranged inside the battery placement chamber and a heat insulation wall plate attached to the inner wall of the side panel of the cabinet body; a plurality of battery modules are arranged inside the battery placement chamber, and a heat insulation layer plate is arranged between every two battery modules; an energy management system is arranged inside the control chamber, and the energy management system is electrically connected with the battery modules, the inlet fan and the outlet fan.
[0006] Further, the heat insulation plate comprises an isolation plate and a T-PCM phase change material, wherein: the isolation plate is a perforated stamping plate with grooves, and the surface is sprayed with carbon nanotube high-thermal-conductivity paint; the T-PCM phase change material is obtained by sealing and hot pressing the T-PCM phase change material after the heat insulation base material is compounded and solidified with a phase change material solution; and the T-PCM phase change material is filled in the grooves of the isolation plate.
[0007] Further, the heat insulation base material is composed of organic felt material or inorganic felt material; the phase change material solution is composed of carbon nanotube, phase change material, composite additive solution, PH regulator and additive; and the packaging structure is a packaging bag or a packaging film structure composed of packaging material.
[0008] Further, the heat insulation wall plate is respectively attached to the inner wall of the top surface of the cabinet body, the inner wall of the bottom surface, the inner wall of the four side panels and the space between the battery placing chamber and the control chamber.
[0009] Further, the fan fixing groove is further arranged on the outer wall of the side panel on the two sides of the cabinet body, and the surface of the outer wall is provided with a DSP heat insulation coating film.
[0010] Further, the air inlet corresponding to the inlet fan and the air outlet corresponding to the outlet fan are further arranged on the side panel on the two sides of the cabinet body.
[0011] Further, the filter screen is arranged at the air inlet and the air outlet.
[0012] The energy storage cabinet with heat insulation and heat dissipation structure provided by the present application has the following beneficial effects:
[0013] The heat insulation plate with phase change material structure is arranged in the energy storage cabinet, the battery module inside the cabinet is insulated, heat absorption, energy storage and heat insulation can be realized, the risk of heat source heat out of control is reduced, and the spread of fire is prevented; at the same time, the air cooling structure is arranged to dissipate heat, the structure is simple, and the heat dissipation effect is good. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings provide explanations of the present application and do not constitute an improper limitation of the present application. In the drawings:
[0015] Figure 1 is a schematic view of the energy storage cabinet with heat insulation and heat dissipation structure provided by the present application;
[0016] Figure 2 is a schematic view of the inlet fan (outlet fan) of the energy storage cabinet with heat insulation and heat dissipation structure provided by the present application;
[0017] Figure 3 is a schematic view of the heat insulation plate provided by the present application;
[0018] In the figure: 1-cabinet body, 2-battery module, 3-insulation layer board, 31-insulation board, 32-T-PCM phase change material, 4-insulation wall board, 5-energy management system, 6-inlet fan, 7-side panel, 8-fan fixing groove, 9-outlet fan. DETAILED DESCRIPTION
[0019] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.
[0020] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0022] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.
[0023] In addition, the meaning of the term "a plurality of" should be two and more than two.
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] like Figures 1-2 As shown, this application provides an energy storage cabinet with a heat insulation and heat dissipation structure, including a cabinet body 1, a battery placement chamber, a control chamber, a heat insulation board, an inlet fan 6, and an outlet fan 9. The cabinet body 1 is a box-type structure composed of a top surface, a bottom surface, and four side panels 7. The battery placement chamber and the control chamber are located inside the cabinet body, with the control chamber located above the battery placement chamber. The inlet fan 6 is located on one side panel 7 of the cabinet body, and the outlet fan 9 is located on the opposite side panel 7 of the cabinet body. The heat insulation board includes a heat insulation layer 3 located inside the battery placement chamber and a heat insulation wall panel 4 attached to the inner wall of the cabinet body's side panel. Multiple battery modules 2 are arranged inside the battery placement chamber, with a heat insulation layer 3 between each pair of battery modules 2. An energy management system 5 is located inside the control chamber, and the energy management system 5 is electrically connected to the battery modules 2, the inlet fan 6, and the outlet fan 9, respectively.
[0026] Specifically, the energy storage cabinet with heat insulation and heat dissipation structure provided in this application embodiment mainly achieves heat insulation and heat dissipation of the battery heat inside the energy storage cabinet by setting a heat insulation plate with a phase change material composite structure. The battery placement chamber is used to place the battery modules 2, which are used to store energy; the control chamber is used to place the energy management system 5, which is electrically connected to the battery modules 2 for energy conversion, distribution, and transmission, and electrically connected to the fan for controlling the fan's operation; the inlet fan 6 and outlet fan 9 are respectively set on the side panels 7 on both sides of the cabinet 1 for heat dissipation inside the cabinet 1, and the inlet fan 6 and outlet fan 9 are symmetrically arranged; a heat insulation layer 3 is set between the battery modules 2, surrounding the cabinet. Insulating wall panels 4 are installed around the perimeter, top, and bottom of the insulation panel 1. Both the insulation layer 3 and the insulation wall panels 4 are made of flexible material as the base material and are composite materials with high enthalpy value. They have the characteristics of plasticity, high heat absorption, non-toxicity, and non-irritation, and can achieve heat absorption, energy storage, and thermal insulation. In the process of manufacturing the insulation panel, carbon nanotubes are added to the phase change material solution to enhance the thermal conductivity and heat dissipation performance of the insulation panel. By utilizing the tunneling effect and large π bond structure of carbon nanotubes, rapid heat dissipation is achieved, and the energy conversion efficiency is enhanced.
[0027] Furthermore, such as Figure 3As shown, the heat insulation plate includes an isolation plate 31 and a T-PCM phase change material 32, wherein: the isolation plate 31 is a perforated stamping plate with grooves, and the surface is sprayed with carbon nanotube high thermal conductivity coating; the T-PCM phase change material 32 is obtained by sealing and hot pressing after encapsulation of the heat insulation base material and the phase change material solution; and the T-PCM phase change material 32 is filled in the grooves of the isolation plate 31.
[0028] Further, the heat insulation base material is composed of organic felt or inorganic felt; the phase change material solution is composed of carbon nanotubes, phase change materials, composite additives, PH adjusters and additives; and the encapsulation structure is an encapsulation bag or encapsulation film structure composed of encapsulation materials.
[0029] Further, the heat insulation wall plate 4 is attached to the inner wall of the top surface of the cabinet body 1, the inner wall of the bottom surface, the inner wall of the four side panels 7, and between the battery placement chamber and the control chamber.
[0030] Specifically, the heat insulation plate as a whole is a composite plate composed of phase change materials. In the preparation process, first, according to the actual application, the heat insulation base material is cut, baked, and then the phase change material solution is prepared. After the preparation is completed, the heat insulation base material is fully soaked in the phase change material solution, soaked for a period of time, and then solidified to form a composite phase change structure. Then, an encapsulation structure is prepared using an encapsulation material, and the encapsulation structure is preferably an encapsulation bag. The composite phase change structure is loaded into the encapsulation bag, vacuumized, and finally the encapsulation bag as a whole is hot pressed to obtain the T-PCM phase change material. The heat insulation layer plate 3 is used for heat insulation between the battery modules 2, and is composed of a perforated stamping plate with grooves. The T-PCM phase change material 32 is filled in the grooves to ensure its heat insulation performance. In order to ensure the strength and heat dissipation effect of the heat insulation layer plate 3, small holes with a uniform distribution of 6mm are preferred on the heat insulation layer plate 3, and the distance between each small hole is preferably 15mm. The heat insulation wall plate 4 is used for heat insulation of the cabinet body 1 as a whole. The heat insulation wall plate 4 can be filled with the same groove structure as the heat insulation layer plate 3, or can be directly attached to the inner wall of the surrounding inner panel of the cabinet body 1 to achieve direct heat insulation of the interior of the cabinet body 1.
[0031] More specifically, in the embodiments of the present application, the composite phase change characteristics of the heat insulation plate are mainly utilized to make it have the performance of low-temperature heat conduction, medium-temperature heat absorption and high-temperature heat insulation. In the actual application process, when the battery module 2 has an abnormal temperature, at a low temperature that has not reached the phase change boundary temperature, the heat insulation plate will conduct heat to assist the abnormal heat source to dissipate heat and prevent the temperature of the abnormal heat source from gradually rising to the self-heat generation stage; when the abnormal heat source has thermal runaway and the temperature reaches the phase change point of the composite phase change structure of the heat insulation plate, the composite phase change structure begins to change phase and undergoes solid-gas conversion, which will rapidly absorb heat, insulate heat, disperse and dissipate heat, and the heat will be slowly released with the gas through the carbon nanotube tunnel to maintain the system temperature balance, and the remaining part will continue to play the role of heat conduction assistance to block the spread of heat; when the heat insulation plate absorbs heat to reach the critical value and the temperature continues to rise, after the composite phase change structure continuously changes phase and absorbs heat, the process catalytic conversion is gradually carried out, the reticular structure crystal is generated, and under the condition of continuous high temperature, the residual material is further converted into a porous structure crystal structure to continue to play the role of heat insulation and prevent the spread of fire.
[0032] Further, the outer wall of the side panel 7 on both sides of the cabinet body 1 is also provided with a fan fixing groove 8, and the surface of the outer wall is provided with a DSP heat insulation coating film.
[0033] Further, the side panel 7 on both sides of the cabinet body 1 is also provided with an air inlet corresponding to the inlet fan 6 and an air outlet corresponding to the outlet fan 9.
[0034] Further, the air inlet and the air outlet are both provided with a filter screen.
[0035] Specifically, the heat dissipation structure preferably adopts a forced air cooling structure, which is arranged on both sides of the cabinet body 1 and includes an inlet fan 6 and an outlet fan 9, which are symmetrically arranged and fixed to the fan fixing groove 8 of the side panel 7 of the cabinet body 1. The inlet fan 6 blows air into the cabinet body 1 through the air inlet arranged on the right side panel 7, and the outlet fan 9 discharges the air in the cabinet body 1 through the air outlet arranged on the left side panel 7. In the embodiment, when the heat insulation wall plate 4 is directly attached to the inner wall of the side panel 7 on both sides of the cabinet body, corresponding air inlets and air outlets are arranged on the heat insulation wall plate 4 to enable the gas to quickly enter and discharge the cabinet body 1. The air inlets and air outlets are provided with filter screens for purifying and filtering the gas. The surface of the side panel 7 of the cabinet body 1 is coated with a DSP super heat insulation coating, which can support and fix the fan while dissipating and insulating heat. The inlet fan 6 and the outlet fan 9 can be selected as cross-flow fans or axial flow fans according to actual conditions, which can adjust the temperature of the conveyed gas. During operation, the gas enters the cabinet body 1 from the inlet fan 6 on the right side of the cabinet body 1, passes through the air inlets on the side panel 7 and the heat insulation wall plate 4, enters the battery placing chamber, and can flow in the battery placing chamber through the heat insulation layer plate 3, so that the entire battery placing chamber is filled with gas to achieve heat dissipation. Finally, the gas is discharged through the air outlets on the left side panel 7 and the heat insulation wall plate 4 of the cabinet body 1 under the action of the outlet fan 9.
[0036] More specifically, the heat insulation plate with phase change material and the forced air cooling structure with heat insulation and heat dissipation functions provided by the embodiment can be applied to cabinet box structures and other energy storage devices or heat insulation and heat dissipation devices, can realize heat absorption, energy storage and heat insulation of internal heat sources, reduce the risk of heat runaway of the heat source, prevent fire spread, and have good overall heat insulation and heat dissipation effects.
[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An energy storage cabinet with heat insulation and dissipation structure, characterized in that, The application relates to a battery cabinet, which comprises a cabinet body, a battery placing chamber, a control chamber, a heat insulation plate, an inlet fan and an outlet fan. The cabinet body is a box structure composed of a top surface, a bottom surface and four side panels. The battery placing chamber and the control chamber are arranged in the interior of the cabinet body, and the control chamber is arranged above the battery placing chamber. The inlet fan is arranged on the side panel of one side of the cabinet body, and the outlet fan is arranged on the side panel of the opposite side of the cabinet body. The heat insulation plate comprises a heat insulation layer plate arranged in the interior of the battery placing chamber and a heat insulation wall plate attached to the inner wall of the side panel of the cabinet body. A plurality of battery modules are arranged in the interior of the battery placing chamber, and the heat insulation layer plate is arranged between every two battery modules. An energy management system is arranged in the interior of the control chamber, and the energy management system is electrically connected with the battery modules, the inlet fan and the outlet fan.
2. The energy storage tank with thermal insulation and heat dissipation structure according to claim 1, characterized in that, The heat insulation plate comprises an isolation plate and T-PCM phase change material. The isolation plate is a perforated stamping plate with grooves, and the surface is sprayed with carbon nanotube high-thermal-conductivity coating. The T-PCM phase change material is obtained by sealing and hot-pressing the T-PCM phase change material after the heat insulation base material is compounded and solidified with the phase change material solution. The T-PCM phase change material is filled in the grooves of the isolation plate.
3. The energy storage tank with thermal insulation and heat dissipation structure according to claim 2, characterized in that, The heat insulation base material is composed of organic felt material or inorganic felt material; the phase change material solution is composed of carbon nanotube, phase change material, composite additive solution, PH regulator and additive; and the packaging structure is a packaging bag or a packaging film structure composed of packaging material.
4. The energy storage tank with thermal insulation and heat dissipation structure according to claim 3, characterized in that, The heat insulation wall plate is attached to the inner wall of the top surface, the inner wall of the bottom surface, the inner wall of the four side panels and the space between the battery placing chamber and the control chamber of the cabinet body.
5. The energy storage tank with thermal insulation and heat dissipation structure according to claim 4, characterized in that, Fan fixing grooves are arranged on the outer walls of the side panels of the cabinet body, and the surfaces of the outer walls are provided with DSP heat insulation coating.
6. The energy storage tank with thermal insulation and heat dissipation structure according to claim 5, characterized in that, Air inlets corresponding to the inlet fans and air outlets corresponding to the outlet fans are arranged on the side panels of the cabinet body.
7. The energy storage tank with thermal insulation and heat dissipation structure according to claim 6, characterized in that, Filter screens are arranged at the air inlets and the air outlets.