Energy storage power supply

Abstract

The invention belongs to the technical field of energy storage equipment, and discloses an energy storage power supply which comprises a shell, a battery module and a phase change heat insulation assembly, the battery module is arranged in the shell, and the phase change heat insulation assembly is installed in the shell and covers the battery module. The phase change heat insulation assembly comprises a heat conduction layer, a phase change material layer and a heat insulation layer which are sequentially stacked from inside to outside. In the actual working process, heat generated by the energy storage power supply is rapidly transmitted to the middle phase change material layer through the internal heat conduction layer, and the phase change material layer absorbs the heat through phase change, changes from a solid state to a molten state and stores a large amount of heat. The external heat insulation layer can prevent heat of the phase change material layer from being transmitted to the shell, and it is ensured that the temperature of the shell is kept within a safe range. According to the energy storage power supply, by arranging the phase change heat insulation assembly, the comprehensive effect of heat conduction, heat storage and heat insulation is achieved, the temperature of the energy storage power supply is reasonably controlled, it is ensured that the temperature is still low after the shell works for a long time, and the phenomenon that a user is burnt is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an energy storage power supply. Background Art

[0002] With the increasing popularity of portable electronic devices, the demand for portable power supplies is increasing. Because portable power supplies are small and lightweight, they often need to be held or touched during use, making temperature control of the outer casing particularly important. Existing technologies rely primarily on natural heat dissipation for heat dissipation. However, due to the significant heat generated by internal components during operation, the outer casing can overheat, posing a risk of burns to the user. Furthermore, the temperature of the battery module can reach 60°C during discharge, further exacerbating the heat dissipation issue. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy storage power supply that can effectively control the internal temperature and shell temperature of a portable power supply, ensuring that the shell temperature remains low after long-term operation, thereby avoiding burns to users.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention discloses an energy storage power supply, comprising: a shell, a battery module, wherein the battery module is arranged inside the shell; a phase change thermal insulation component, wherein the phase change thermal insulation component is installed inside the shell and covers the battery module, and the phase change thermal insulation component comprises a heat conductive layer, a phase change material layer and a heat insulation layer stacked in sequence from the inside to the outside.

[0006] In some embodiments, the heat conductive layer abuts against the outer side wall of the battery module and is connected by bonding or clamping.

[0007] In some embodiments, the thermal insulation layer abuts against the inner wall of the shell and is connected by bonding or snapping.

[0008] In some embodiments, the thermal conductivity of the heat-conducting layer is 200 W / (m·K)-400 W / (m·K).

[0009] In some embodiments, the phase change point of the phase change material layer is 40°C-50°C.

[0010] In some embodiments, the thermal conductivity of the thermal insulation layer is 0.02 W / (m·K)-0.05 W / (m·K).

[0011] In some embodiments, a first perforation is provided on the shell, a second perforation corresponding to the first perforation is provided on the phase change thermal insulation assembly, and the energy storage power supply further includes a lamp board installed in the first perforation and the second perforation.

[0012] In some embodiments, the energy storage power supply also includes a control component, which is installed inside the phase change insulation component and is electrically connected to the battery module. The control component includes a power board, a control board, a BMS board and a charging board. The power board, the control board and the BMS board are arranged in sequence above the battery module, and the charging board is installed below the battery module.

[0013] In some embodiments, the outer shell includes a shell body and a base, the shell body defines an installation cavity with an open lower end, the battery module and the phase change insulation assembly are both arranged in the installation cavity, and the base is installed at the open end of the shell body.

[0014] In some embodiments, the battery module includes an upper bracket, a lower bracket, and a plurality of single cells, wherein the upper bracket and the lower bracket are respectively supported at two ends of the plurality of single cells.

[0015] The beneficial effects of the energy storage power supply of the present invention are as follows: During actual operation, heat generated by the energy storage power supply is rapidly transferred to the intermediate phase-change material layer through the internal heat-conducting layer. The phase-change material layer absorbs heat through a phase change, transforming from a solid state to a molten state, and storing a large amount of heat. The external thermal insulation layer prevents heat from the phase-change material layer from being transferred to the outer casing, ensuring that the outer casing temperature remains within a safe range. The energy storage power supply of this embodiment, by providing a phase-change thermal insulation component, achieves a combined effect of heat conduction, heat storage, and heat insulation. The temperature of the energy storage power supply is properly controlled, ensuring that the outer casing temperature remains low even after long periods of operation, preventing burns to the user.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the energy storage power supply according to an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of an energy storage power supply according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the decomposed structure of the energy storage power supply according to an embodiment of the present invention.

[0020] Figure 4 is a schematic diagram of a partial structure of an energy storage power supply according to an embodiment of the present invention;

[0021] Figure 5 is another partial structural diagram of the energy storage power supply according to an embodiment of the present invention;

[0022] Figure 6It is a schematic diagram of an exploded view of the phase change thermal insulation component of the energy storage power supply according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] 100, outer shell; 110, shell body; 111, handle; 120, base;

[0025] 200, battery module; 210, upper bracket; 220, single battery; 230, lower bracket;

[0026] 300, phase change thermal insulation component; 310, thermal conductive layer; 320, phase change material layer; 330, thermal insulation layer;

[0027] 400, light board;

[0028] 500, control component; 510, power board; 520, control board; 530, BMS board; 540, charging board. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0030] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," "right," "front," and "rear" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0032] The present invention discloses an energy storage power supply, referring to Figure 1-Figure 3As shown, the energy storage power supply includes a housing 100, a battery module 200 and a phase change insulation component 300, the battery module 200 is arranged inside the housing 100, the phase change insulation component 300 is installed inside the housing 100, and the cover is arranged on the battery module 200, Figure 6 As shown, the phase change insulation assembly 300 includes a heat-conducting layer 310, a phase change material layer 320, and a heat-insulating layer 330, which are stacked in sequence from the inside to the outside. It is understandable that during actual operation, the heat generated by the energy storage power supply is quickly transferred to the middle phase change material layer 320 through the internal heat-conducting layer 310. The phase change material layer 320 absorbs heat through phase change, changes from a solid state to a molten state, and stores a large amount of heat. The external heat-insulating layer 330 can prevent the heat of the phase change material layer 320 from being transferred to the outer shell 100, ensuring that the temperature of the outer shell 100 remains within a safe range. The energy storage power supply of this embodiment achieves the comprehensive effects of heat conduction, heat storage, and heat insulation by providing the phase change insulation assembly 300. The temperature of the energy storage power supply is reasonably controlled, ensuring that the temperature of the outer shell 100 remains low after long-term operation, avoiding burns to the user.

[0033] Optionally, the thermal conductive layer 310, the phase change material layer 320, and the thermal insulation layer 330 may be connected by bonding, or by coating a phase change material on the thermal conductive layer 310 to form the phase change material layer 320, and then coating a thermal insulation material on the phase change material layer 320 to form the thermal insulation layer 330. The connection method of the thermal conductive layer 310, the phase change material layer 320, and the thermal insulation layer 330 can be determined based on actual needs, and there is no need to impose specific restrictions on the connection method of the thermal conductive layer 310, the phase change material layer 320, and the thermal insulation layer 330.

[0034] Optionally, the thermally conductive layer 310 abuts against the outer wall of the battery module 200. It will be appreciated that directly abutting the outer wall of the battery module 200 increases the contact area between the thermally conductive layer 310 and the battery module 200, thereby enabling the heat generated during operation of the battery module 200 to be quickly transferred through the thermally conductive layer 310 to the phase change material layer 320, thereby facilitating control of the operating temperature of the battery module 200 and reducing the probability of thermal runaway of the battery module 200.

[0035] Further optionally, the thermally conductive layer 310 is connected to the outer wall of the battery module 200 by bonding or snapping. The thermally conductive layer 310 can be bonded to the outer wall of the battery module 200 by thermally conductive adhesive, or fixed to the outer wall of the battery module 200 by snap fasteners. This ensures a stable connection between the thermally conductive layer 310 and the battery module 200, thereby ensuring a large contact area between the thermally conductive layer 310 and the battery module 200, ensuring rapid heat transfer. Of course, in other embodiments of the present invention, the thermally conductive layer 310 can also be fixed to the outer wall of the battery module 200 by other connection methods according to actual needs, such as screw connection.

[0036] Optionally, the thermal insulation layer 330 abuts against the inner wall of the housing 100. It is understood that the thermal insulation layer 330 abuts against the inner wall of the housing 100, so that the thermal insulation layer 330 covers the entire inner wall of the housing 100, preventing heat from leaking into the housing 100, so that the housing 100 has a higher temperature.

[0037] Further optionally, the thermal insulation layer 330 is connected to the inner side wall of the housing 100 by bonding or snapping. The thermal insulation layer 330 can be bonded to the inner side wall of the housing 100 using high-temperature resistant glue, or can be fixed to the inner side wall of the housing 100 by snapping. This ensures a stable connection between the thermal insulation layer 330 and the housing 100, thereby ensuring a large contact area between the thermal insulation layer 330 and the housing 100, thereby minimizing the risk of heat leakage from the phase change material layer 320 to the housing 100. Of course, in other embodiments of the present invention, the thermal insulation layer 330 can also be fixed to the inner side wall of the housing 100 using other connection methods according to actual needs, such as screw connection.

[0038] Optionally, the thermal conductivity of the heat-conducting layer 310 is 200 W / (m·K)-400 W / (m·K), thereby ensuring that heat can be quickly transferred to the phase change material. Specifically, the thermal conductivity of the heat-conducting layer 310 can be 200 W / (m·K), 210 W / (m·K), 220 W / (m·K), 230 W / (m·K), 240 W / (m·K), 250 W / (m·K), 260 W / (m·K), 270 W / (m·K), 280 W / (m·K), 290 W / (m·K), 300 W / (m·K), 310 W / (m·K), 320 W / (m·K), 330 W / (m·K), 340 W / (m·K), 350 W / (m·K), 360 W / (m·K), 370 W / (m·K), 380 W / (m·K), 390 W / (m·K), and 400 W / (m·K). The thermal conductivity of the heat-conducting layer 310 may also be other values ​​within the range of 200 W / (m·K)-400 W / (m·K), or a value outside the above range may be selected according to actual needs.

[0039] Further optionally, copper foil or aluminum foil may be selected for the heat conducting layer 310. Of course, in other embodiments of the present invention, other materials may be selected for the heat conducting layer 310 according to actual needs.

[0040] Optionally, the phase change point of the phase change material layer 320 is 40°C-50°C. This ensures that heat can be effectively absorbed within the operating temperature range of the energy storage power supply. Specifically, the phase change point of the phase change material layer 320 can be 40°C, 40.5°C, 41°C, 41.5°C, 42°C, 42.5°C, 43°C, 43.5°C, 44°C, 44.5°C, 45°C, 45.5°C, 46°C, 46.5°C, 47°C, 47.5°C, 48°C, 48.5°C, 49°C, 49.5°C, and 50°C. The phase change point of the phase change material layer 320 can also select other values ​​within the range of 40°C-50°C, or select values ​​outside the above range according to actual needs.

[0041] Alternatively, the phase change material layer 320 is a mixture of paraffin wax or salt water. Of course, in other embodiments of the present invention, the phase change material layer 320 can also be made of other materials according to actual needs.

[0042] It should be noted that the weight of the phase change material layer 320 can be determined based on thermal simulation data of the energy storage power supply, and the specific weight of the phase change material layer 320 is not limited here.

[0043] Optionally, the thermal conductivity of the thermal insulation layer 330 is 0.02W / (m·K)-0.05W / (m·K). This ensures that heat can be effectively prevented from being transferred to the housing 100. Specifically, the thermal conductivity of the thermal insulation layer 330 is 0.02W / (m·K), 0.025W / (m·K), 0.03W / (m·K), 0.035W / (m·K), 0.04W / (m·K), 0.045W / (m·K), and 0.05W / (m·K). The thermal conductivity of the thermal insulation layer 330 can also be selected from other values ​​within the range of 0.02W / (m·K)-0.05W / (m·K), or other values ​​outside the above range can be selected according to actual needs.

[0044] Further optionally, aerogel or mica sheet can be selected for the heat insulation layer 330. Of course, in other embodiments of the present invention, the phase change material layer 320 can also be selected from other materials according to actual needs.

[0045] refer to Figure 3-Figure 4 As shown, the housing 100 is provided with a first perforation, the phase change thermal insulation assembly 300 is provided with a second perforation corresponding to the first perforation, and the energy storage power supply further includes a light board 400 mounted within the first and second perforations. It will be understood that the additional light board 400 is used to provide lighting for user convenience. The light board 400 can be an LED light, or other light-emitting structures can be selected according to actual needs.

[0046] refer to Figure 3As shown, the energy storage power supply also includes a control assembly 500, which is installed inside the phase change insulation assembly 300 and is electrically connected to the battery module 200. The control assembly 500 includes a power board 510, a control board 520, a BMS (Battery Management System) board 530, and a charging board 540. The power board 510, the control board 520, and the BMS board 530 are arranged in sequence above the battery module 200, and the charging board 540 is installed below the battery module 200. It is understood that the BMS board 530 monitors the temperature of the battery module 200 in real time to ensure that the temperature of the battery module 200 is between 55°C and 65°C to avoid overheating. A temperature sensor can be set on the control board 520 to monitor the temperature inside the energy storage power supply in real time to ensure that the temperature is between 80°C and 90°C to prevent damage to electronic components. The power board 510 controls output power. When the temperature sensor detects that the temperature inside the energy storage power supply exceeds a set threshold, the system automatically reduces output power or enters protection mode to prevent thermal runaway. The charging board 540 charges the battery module 200 for user convenience.

[0047] It should be noted that the power board 510, the control board 520, the BMS board 530 and the charging board 540 will generate heat during operation. In this embodiment, the power board 510, the control board 520, the BMS board 530 and the charging board 540 are all installed inside the phase change insulation assembly 300. The heat generated during the operation of the power board 510, the control board 520, the BMS board 530 and the charging board 540 can also be transferred to the phase change material layer 320 through the thermal conductive layer 310 and stored, thereby preventing the operating heat of the power board 510, the control board 520, the BMS board 530 and the charging board 540 from being transferred to the outer casing 100.

[0048] Optional, reference Figure 1 and Figure 3As shown, the housing 100 includes a housing body 110 and a base 120. The housing body 110 defines an installation cavity with an open lower end. The battery module 200 and the phase change insulation assembly 300 are both arranged in the installation cavity, and the base 120 is installed at the open end of the housing body 110. It can be understood that in the actual installation process, the charging plate 540 is installed on the base 120, and then the battery module 200, the power board 510, the control board 520 and the BMS board 530 are installed in sequence from bottom to top. Then, the phase change insulation assembly 300 is covered on the battery module 200 and the control assembly 500, and finally, the housing 100 is connected to the base 120. Splitting the housing 100 into the housing body 110 and the base 120 can facilitate assembly and facilitate automated assembly. It should be noted that the shell body 110 and the base 120 can be connected by screw connection, snap connection, etc., which can be selected according to actual needs. The specific connection method of the shell body 110 and the base 120 is not limited here.

[0049] Further optionally, a rotatable handle 111 is provided on the shell body 110. The user can lift the entire energy storage power supply by the handle 111, which is conducive to improving the user's satisfaction.

[0050] Optional, reference Figure 5 As shown, the battery module 200 includes an upper bracket 210, a lower bracket 230, and a plurality of single cells 220. The upper bracket 210 and the lower bracket 230 respectively support the ends of the plurality of single cells 220. It will be appreciated that mounting the plurality of single cells 220 on the upper bracket 210 and the lower bracket 230 and securing the ends of the single cells 220 can ensure the stability of the single cells 220, thereby preventing the single cells 220 from shaking inside the housing 100 when the energy storage power supply is moved or transported.

[0051] Throughout this specification, references to "some embodiments," "other embodiments," and the like indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An energy storage power supply, characterized in that: include: shell, a battery module, the battery module being arranged inside the housing; A phase-change thermal insulation component is installed inside the shell and covers the battery module. The phase-change thermal insulation component includes a heat-conducting layer, a phase-change material layer, and a thermal insulation layer stacked in sequence from the inside to the outside.

2. The energy storage power supply according to claim 1, characterized in that: The heat-conducting layer abuts against the outer side wall of the battery module and is connected by bonding or clamping.

3. The energy storage power supply according to claim 1, characterized in that: The heat insulation layer abuts against the inner side wall of the shell and is connected by bonding or clamping.

4. The energy storage power supply according to claim 1, characterized in that: The thermal conductivity of the heat-conducting layer is 200W / (m·K)-400W / (m·K).

5. The energy storage power supply according to claim 1, characterized in that: The phase change point of the phase change material layer is 40°C-50°C.

6. The energy storage power supply according to claim 1, characterized in that: The thermal conductivity of the heat insulation layer is 0.02W / (m·K)-0.05W / (m·K).

7. The energy storage power supply according to any one of claims 1 to 6, characterized in that: The shell is provided with a first through-hole, the phase-change thermal insulation assembly is provided with a second through-hole corresponding to the first through-hole, and the energy storage power supply further includes a lamp board installed in the first through-hole and the second through-hole.

8. The energy storage power supply according to any one of claims 1 to 6, characterized in that: It also includes a control component and a charging plate. The control component is installed inside the phase change insulation component and is electrically connected to the battery module. The control component includes a power board, a control board, a BMS board and a charging board. The power board, the control board and the BMS board are arranged in sequence above the battery module, and the charging plate is installed below the battery module.

9. The energy storage power supply according to any one of claims 1 to 6, characterized in that: The shell includes a shell body and a base. The shell body defines an installation cavity with an open lower end. The battery module and the phase change insulation assembly are both arranged in the installation cavity. The base is installed at the open end of the shell body.

10. The energy storage power supply according to any one of claims 1 to 6, characterized in that: The battery module includes an upper bracket, a lower bracket and a plurality of single batteries. The upper bracket and the lower bracket are respectively supported at two ends of the plurality of single batteries.

Images