Energy storage cabinet with heat insulation and heat dissipation structure
By using phase-change materials in the energy storage cabinet, the problem of poor heat insulation and heat dissipation effect of the energy storage cabinet when the battery module generates thermal energy, it achieves safer and more stable thermal management.
Patent Information
- Application Number
- CN202510074788.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-03-18
AI Technical Summary
When the battery module generates heat energy, the existing energy storage cabinets have poor heat insulation and heat dissipation effects, which can easily lead to thermal runaway, fire or explosion, and pose safety hazards.
An energy storage cabinet with a phase change material and an air-cooled structure is designed. By setting up a thermal insulation layer plate and a thermal insulation wall panel, the phase change material absorbs heat, stores and insulating heat, and combines a fan to dissipate heat.
It effectively reduces the risk of thermal runaway from the battery module, prevents fire from spreading, improves the overall heat insulation and heat dissipation effect of the energy storage cabinet, and ensures the safety and stability of the equipment.
Smart Images
Figure CN119650950A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage cabinet with a heat insulation and heat dissipation structure. Background Art
[0002] The energy storage cabinet is a cabinet structure used to store electric energy. It is generally equipped with several battery modules inside, which are used to store electric energy generated by solar energy, wind energy, etc. or directly store electric energy. The energy storage cabinet supplies the stored electric energy to electrical equipment as a power source. During the power supply process of the energy storage cabinet, the battery module will generate a large amount of heat energy. If the heat energy cannot be effectively dissipated, the temperature inside the energy storage cabinet will rise sharply, affecting the normal use of the energy storage cabinet and even causing a fire. Therefore, the heat dissipation inside the energy storage cabinet is very important.
[0003] The existing energy storage cabinets generally use ordinary plates for insulation, and their thermal insulation effect is poor; the heat dissipation structure generally uses fan heat dissipation or water cooling structure for heat dissipation, the heat dissipation structure is complex, and the heat dissipation effect is not obvious. When the battery fails and the temperature rises, the energy storage cabinet cannot be well insulated and heat dissipated, and thermal runaway is prone to occur, causing fire or explosion, posing a safety hazard. Summary of the invention
[0004] The present application provides an energy storage cabinet with a heat insulation and heat dissipation structure, which improves the overall heat insulation and heat dissipation effect inside the cabinet by providing a heat insulation board with phase change material and using a fan for heat dissipation.
[0005] In order to achieve the above-mentioned objectives, the present application provides an energy storage cabinet with a heat insulation and heat dissipation structure, comprising a cabinet body, a battery placement chamber, a control chamber, an insulation board, an inlet fan and an outlet fan, wherein: the cabinet body is a box-type structure consisting 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 other side of the cabinet body; the insulation board includes an insulation layer plate arranged inside the battery placement chamber and an insulation wall plate attached to the inner wall of the cabinet side panel; a plurality of battery modules are arranged inside the battery placement chamber, and an 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 to the battery module, the inlet fan and the outlet fan respectively.
[0006] Furthermore, the thermal insulation board includes an isolation board and a T-PCM phase change material, wherein: the isolation board is a perforated stamped board with grooves, and a carbon nanotube high thermal conductivity coating is sprayed on the surface; the T-PCM phase change material is obtained by composite curing of a thermal insulation base material and a phase change material solution and then sealing and hot pressing through a packaging structure; the T-PCM phase change material is filled in the groove of the isolation board.
[0007] Furthermore, the thermal insulation base material is composed of organic felt material or inorganic felt material; the phase change material solution is composed of carbon nanotubes, phase change material, composite auxiliary agent solution, pH regulator and additives; and the packaging structure is a packaging bag or packaging film structure composed of packaging material.
[0008] Furthermore, the heat-insulating wall panels are respectively attached to the inner wall of the top surface of the cabinet, the inner wall of the bottom surface, the inner walls of the four side panels, and between the battery placement chamber and the control chamber.
[0009] Furthermore, fan fixing grooves are provided on the outer walls of the side panels on both sides of the cabinet, and a DSP heat-insulating coating is provided on the surface of the outer walls.
[0010] Furthermore, the side panels on both sides of the cabinet are provided with air inlets corresponding to the inlet fans and air outlets corresponding to the outlet fans.
[0011] Furthermore, filters are provided at both the air inlet and the air outlet.
[0012] The energy storage cabinet with a heat insulation and heat dissipation structure provided in the present application has the following beneficial effects:
[0013] The present application arranges an insulation board with a phase change material structure inside the energy storage cabinet to insulate the battery module inside it, which can achieve heat absorption, energy storage, and thermal insulation, reduce the risk of thermal runaway of the heat source, and prevent the spread of fire; at the same time, an air cooling structure is arranged for heat dissipation, which has a simple structure and good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:
[0015] Figure 1 is a schematic diagram of an energy storage cabinet with a heat insulation and heat dissipation structure provided according to an embodiment of the present application;
[0016] Figure 2 It is a schematic diagram of an inlet fan (outlet fan) of an energy storage cabinet with a heat insulation and heat dissipation structure provided according to an embodiment of the present application;
[0017] Figure 3 is a schematic diagram of a heat insulation board provided according to an embodiment of the present application;
[0018] In the figure: 1-cabinet, 2-battery module, 3-insulation layer board, 31-isolation board, 32-T-PCM phase change material, 4-insulation wall board, 5-energy management system, 6-inlet fan, 7-side panel, 8-fan fixing slot, 9-export fan. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are 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 positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used 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, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.
[0023] In addition, the term "plurality" shall mean two or more.
[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0025] like Figure 1-2 As shown, the present application provides an energy storage cabinet with a heat insulation and heat dissipation structure, including a cabinet 1, a battery placement chamber, a control chamber, an insulation board, an inlet fan 6 and an outlet fan 9, wherein: the cabinet 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 arranged inside the cabinet, and the control chamber is arranged above the battery placement chamber; the inlet fan 6 is arranged on the side panel 7 on one side of the cabinet, and the outlet fan 9 is arranged on the side panel 7 on the other side of the cabinet; the insulation board includes an insulation layer plate 3 arranged inside the battery placement chamber and an insulation wall plate 4 attached to the inner wall of the cabinet side panel; a plurality of battery modules 2 are arranged inside the battery placement chamber, and an insulation layer plate 3 is arranged between every two battery modules 2; an energy management system 5 is arranged inside the control chamber, and the energy management system 5 is electrically connected to the battery module 2, the inlet fan 6 and the outlet fan 9 respectively.
[0026] Specifically, the energy storage cabinet with a heat-insulating and heat-dissipating structure provided in the embodiment of the present application mainly realizes heat-insulating and heat-dissipating heat of the batteries inside the energy storage cabinet by setting a heat-insulating plate with a phase-change material composite structure. Among them, the battery placement chamber is used to place the battery module 2, and the battery module 2 is used to store energy; the control chamber is used to place the energy management system 5, and the energy management system 5 is electrically connected to the battery module 2 for energy conversion, distribution and transportation, and is electrically connected to the fan for controlling the operation of the fan; the inlet fan 6 and the outlet fan 9 are respectively arranged 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 the outlet fan 9 are symmetrically arranged; an insulation layer plate 3 is arranged between the battery modules 2, surrounding the cabinet 1 is provided with heat-insulating wall panels 4 around, on the top and on the bottom; the heat-insulating layer panels 3 and the heat-insulating wall panels 4 as a whole are made of flexible materials as the base material, and are composited with high enthalpy value materials, and have the characteristics of plasticity, high heat absorption, non-toxicity and non-irritation, and can achieve heat absorption, energy storage and thermal insulation; and in the overall production process of the heat-insulating board, carbon nanotubes are added to the phase change material solution to enhance the thermal conductivity and heat dissipation performance of the heat-insulating board, and the tunnel effect and large π bond structure of the carbon nanotubes are utilized to achieve rapid heat dissipation and enhance the energy conversion efficiency.
[0027] Further, such as Figure 3As shown, the thermal insulation board includes an isolation board 31 and a T-PCM phase change material 32, wherein: the isolation board 31 is a perforated stamping board with a groove, and the surface is sprayed with a carbon nanotube high thermal conductivity coating; the T-PCM phase change material 32 is obtained by composite curing of a thermal insulation base material and a phase change material solution through a packaging structure and sealing and hot pressing molding; the T-PCM phase change material 32 is filled in the groove of the isolation board 31.
[0028] Furthermore, the thermal insulation base material is composed of organic felt material or inorganic felt material; the phase change material solution is composed of carbon nanotubes, phase change material, composite auxiliary agent solution, pH regulator and additives; and the packaging structure is a packaging bag or packaging film structure composed of packaging material.
[0029] Furthermore, the heat-insulating wall panels 4 are respectively attached to the inner wall of the top surface of the cabinet 1 , the inner wall of the bottom surface, the inner walls of the four side panels 7 , and between the battery placement chamber and the control chamber.
[0030] Specifically, the thermal insulation board as a whole is a composite board material composed of phase change material. During the preparation process, the thermal insulation base material is first cut and baked according to the actual application situation, and then the phase change material solution is prepared. After the preparation is completed, the thermal insulation base material is fully immersed in the phase change material solution, and then solidified after soaking for a period of time to form a composite phase change structure. Subsequently, the packaging structure is prepared using the packaging material. The packaging structure is preferably a packaging bag. The composite phase change structure is placed in the packaging bag, which is vacuumed, and finally the packaging bag as a whole is hot-pressed to obtain the T-PCM phase change material. Among them, the thermal insulation layer plate 3 is used for thermal insulation between battery modules 2, and is composed of a perforated stamping plate with grooves. T-PCM phase change material 32 is filled in the grooves to ensure its thermal insulation performance. At the same time, in order to ensure the strength and heat dissipation effect of the thermal insulation layer plate 3, 6 mm small holes are preferably evenly distributed on the thermal insulation layer plate 3, and the distance between each small hole is preferably 15 mm; and the thermal insulation wall plate 4 is used to isolate the heat of the cabinet 1 as a whole. The thermal insulation wall plate 4 can choose the same groove filling structure as the thermal insulation layer plate 3, or it can be directly attached to the inner wall of the surrounding internal panel of the cabinet 1 to achieve direct thermal insulation of the internal heat of the cabinet 1.
[0031] More specifically, in the embodiment of the present application, the composite phase change characteristics of the heat insulation board 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, the heat insulation board will conduct heat before reaching the low temperature of the phase change boundary temperature, assist the abnormal heat source in dissipating heat, and prevent the temperature of the abnormal heat source from gradually climbing to the self-heating stage; when the abnormal heat source is thermally runaway and the temperature reaches the phase change point of the composite phase change structure of the heat insulation board, the composite phase change structure begins to undergo phase change, solid-gas conversion occurs, and it will rapidly absorb heat, insulate, disperse, and discharge heat. The heat is slowly released through the carbon nanotube tunnel with the gas to maintain the temperature balance of the system, and the rest continues to play an auxiliary role in heat conduction to block the spread of heat; when the heat absorption of the heat insulation board reaches the critical value and the temperature continues to rise, the composite phase change structure continues to phase change and absorb heat, and then gradually undergoes process catalytic conversion to generate a mesh structure crystal. Under continuous high temperature, the residual material is further converted into a porous structure crystal structure, which continues to play an insulating role to prevent the spread of fire.
[0032] Furthermore, fan fixing grooves 8 are provided on the outer walls of the side panels 7 on both sides of the cabinet 1, and a DSP heat insulation coating is provided on the surface of the outer wall.
[0033] Furthermore, the side panels 7 on both sides of the cabinet 1 are also provided with air inlets corresponding to the inlet fans 6 and air outlets corresponding to the outlet fans 9 .
[0034] Furthermore, filters are provided at both the air inlet and the air outlet.
[0035] Specifically, the heat dissipation structure preferably adopts an air-cooling structure, which is integrally arranged on both sides of the cabinet 1 and is divided into an inlet fan 6 and an outlet fan 9, which are symmetrically arranged and fixed at the fan fixing slot 8 of the side panel 7 of the cabinet 1. The inlet fan 6 blows air into the cabinet 1 through the corresponding air inlet arranged on the right side panel 7, and the outlet fan 9 discharges the air inside the cabinet 1 through the corresponding air outlet arranged on the left side panel 7. In the embodiment of the present application, when the heat-insulating wall panel 4 is directly attached to the inner wall of the side panels 7 on both sides of the cabinet, it is necessary to open corresponding air inlets and air outlets at the corresponding positions of the heat-insulating wall panel 4 so that the gas can quickly enter and discharge the cabinet 1. Filters are provided at the air inlet and outlet for purifying and filtering the gas; the surface of the side panel 7 of the cabinet 1 is coated with a DSP super-insulating coating, which can not only provide heat dissipation and insulation, but also support and fix the fan; the inlet fan 6 and the outlet fan 9 can select cross-flow fans or axial-flow fans according to actual conditions, and can adjust the temperature of the conveyed gas; when working, the gas enters from the inlet fan 6 on the right side of the cabinet 1, passes through the air inlet on the side panel 7 and the insulation wall panel 4 into the battery placement chamber, and can pass through the insulation layer plate 3 and flow inside the battery placement chamber, so that the entire battery placement chamber is filled with gas to achieve heat dissipation, and the gas is finally discharged through the air outlet on the side panel 7 and the insulation wall panel 4 on the left side of the cabinet 1 under the action of the outlet fan 9.
[0036] More specifically, the thermal insulation board with phase change material and the air-cooling structure with thermal insulation and heat dissipation functions provided in the embodiments of the present application are not only suitable for cabinet box structures, but also suitable for other energy storage equipment or thermal insulation and heat dissipation devices. They can achieve heat absorption, energy storage and thermal insulation of internal heat sources, reduce the risk of thermal runaway of heat sources, prevent the spread of fire, and have good overall thermal insulation and heat dissipation effects.
[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An energy storage cabinet with a heat insulation and heat dissipation structure, characterized in that: It includes a cabinet, a battery placement chamber, a control chamber, a heat insulation board, an inlet fan and an outlet fan, wherein: The cabinet body is a box-type structure consisting of a top surface, a bottom surface and four side panels; The battery placement chamber and the control chamber are arranged inside the cabinet, and the control chamber is arranged above the battery placement chamber; The inlet fan is arranged on a side panel on one side of the cabinet, and the outlet fan is arranged on a side panel on the other side of the cabinet; The heat insulation board includes a heat insulation layer board arranged inside the battery placement chamber and a heat insulation wall board attached to the inner wall of the cabinet side panel; A plurality of battery modules are arranged inside the battery placement chamber, and the heat insulation layer plate is arranged between every two battery modules; An energy management system is disposed inside the control chamber, and the energy management system is electrically connected to the battery module, the inlet fan and the outlet fan respectively.
2. The energy storage cabinet with heat insulation and heat dissipation structure according to claim 1, characterized in that: The thermal insulation board comprises an isolation board 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 coating; The T-PCM phase change material is obtained by curing the thermal insulation base material and the phase change material solution through sealing and hot pressing through a packaging structure; The T-PCM phase change material is filled in the groove of the isolation plate.
3. The energy storage cabinet with a heat insulation and heat dissipation structure according to claim 2, characterized in that: The heat-insulating base material is composed of organic felt material or inorganic felt material; the phase change material solution is composed of carbon nanotubes, phase change material, composite auxiliary solution, pH regulator and additives; the packaging structure is a packaging bag or packaging film structure composed of packaging material.
4. The energy storage cabinet with a heat insulation and heat dissipation structure according to claim 3 is characterized in that: The heat-insulating wall panels are respectively attached to the inner wall of the top surface of the cabinet, the inner wall of the bottom surface, the inner walls of the four side panels, and between the battery placement chamber and the control chamber.
5. The energy storage cabinet with heat insulation and heat dissipation structure according to claim 4, characterized in that: Fan fixing grooves are also arranged on the outer walls of the side panels on both sides of the cabinet, and DSP heat insulation coating films are arranged on the surfaces of the outer walls.
6. The energy storage cabinet with a heat insulation and heat dissipation structure according to claim 5, characterized in that: The side panels on both sides of the cabinet are also provided with air inlets corresponding to the inlet fans and air outlets corresponding to the outlet fans.
7. The energy storage cabinet with a heat insulation and heat dissipation structure according to claim 6, characterized in that: Filters are provided at the air inlet and the air outlet.