BMS remote control device
By employing a biomimetic microcapillary-liquid metal dynamic cooling structure and an electromagnetic drive system, the heat dissipation problem of the BMS remote control device in high-temperature environments has been solved, achieving efficient dynamic heat transfer and stable heat dissipation, ensuring stable operation of the device under high power consumption conditions.
Patent Information
- Application Number
- CN202520450362.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing BMS remote control devices have poor heat dissipation performance in high-temperature environments, leading to sensor drift, communication module instability, and abnormal crashes of control units.
It adopts a biomimetic microcapillary-liquid metal dynamic cooling structure, which controls the flow of liquid metal in multi-level branched microchannels through an electromagnetic drive system to form a cooling circulation loop, remove heat, and enhance heat flow management capabilities by combining it with biomimetic tree-like capillary microchannels.
It achieves efficient dynamic heat transfer, improves heat dissipation, ensures stable operation of BMS device under high power consumption conditions, and reduces the impact of overheating on equipment.
Smart Images
Figure CN223899553U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to BMS field especially relates to a BMS remote control device. BACKGROUND
[0002] BMS (Battery Management System, battery management system) remote control device is mainly used for real-time monitoring, control and protection to battery pack, and is widely used in new energy vehicles, energy storage system and industrial power management. The device is usually composed of a master control unit, a communication module, an acquisition module and an actuator, and realizes remote data acquisition and control instruction issuing through wireless or wired communication mode, so as to improve the safety and service life of the battery.
[0003] The existing BMS remote control device usually integrates multiple function modules, such as high-precision battery voltage, current and temperature acquisition circuit, wireless communication unit (4G / 5G / NB-IoT), control relay, etc. These components will generate a large amount of heat during long-term operation, especially in high-temperature environments (such as vehicle battery compartment, outdoor energy storage cabinet), and the system temperature is too high, which may cause sensor drift, unstable communication module, and even abnormal crash of the control unit. The current heat dissipation design mostly relies on a single heat sink or passive heat dissipation method, which is difficult to maintain long-term stable operation under high-power working state.
[0004] Therefore, a new BMS remote control device is needed to solve the problem of poor heat dissipation effect of the current BMS remote control device. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a BMS remote control device, which solves the problem of poor heat dissipation effect of the current BMS remote control device.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] A BMS remote control device, comprising a substrate, a packaging shell, a cooling plate, a cooling liquid and an electromagnetic drive system; the substrate is arranged in the packaging shell; the cooling plate covers the substrate; the cooling plate has two cavities at both ends, and the inside is etched with a microchannel communicating with the two cavities, one end of the microchannel is provided with a liquid inlet, and the other end is provided with a liquid outlet, forming a cooling circulation loop; the cooling liquid is arranged in the microchannel; the electromagnetic drive system is arranged in the cavity.
[0008] Further, the micro-channel comprises a main channel; one end of the main channel is provided with a liquid inlet and is communicated with one of the cavities; the other end of the main channel is communicated with a first branch channel; the first branch channel is communicated with a second branch channel; one end of the third branch channel is communicated with the second branch channel, and the other end is provided with a liquid outlet and is communicated with another cavity.
[0009] Further, the number of the first branch channels is 2, and the first branch channels are symmetrically communicated with the main channel; the number of the second branch channels is 4, and every two second branch channels are symmetrically communicated with one first branch channel; the number of the third branch channels is 8, and every two third branch channels are symmetrically communicated with one second branch channel.
[0010] Further, the number of the micro-channels is 3; the three micro-channels are equidistantly arranged on the cooling plate, and adjacent two micro-channels are respectively arranged with the main channel and the third branch channel communicated with the cavities on the same side.
[0011] Further, the electromagnetic driving system is composed of a plurality of micro electromagnetic coils and is sequentially arranged at the connection between the main channel and the first branch channel, the connection between the first branch channel and the second branch channel, the connection between the second branch channel and the third branch channel and the two cavities.
[0012] Further, the width of the main channel is between 100 μm and 500 μm, and the widths of the first branch channel, the second branch channel and the third branch channel are gradually reduced to 10 μm to 100 μm.
[0013] Further, the inner wall surface of the main channel is provided with a micron-level protrusion array.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The main channel, the first branch channel, the second branch channel and the third branch channel are sequentially communicated and form a cooling circulation loop through the cavities, the electromagnetic driving system arranged in the cavities drives the liquid metal to flow to the heating point in the cooling circulation loop through the magnetic field, and the liquid metal continuously flows to the branch channel under the capillary action and carries away the heat, the bionic micro-capillary-liquid metal dynamic cooling structure replaces the traditional heat pipe through the efficient dynamic heat fluid transmission mechanism, and the heat flow management capability is improved by combining the bionic tree-shaped capillary micro-channel, and the purpose of passive and efficient heat dissipation is finally achieved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0017] The structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0018] Figure 1 Structure diagram of an embodiment of a BMS remote control device of the present application;
[0019] Figure 2 Sectional view of an embodiment of a BMS remote control device of the present application;
[0020] Figure 3 Structure diagram of a cooling plate of an embodiment of a BMS remote control device of the present application.
[0021] Illustration: 100, substrate; 200, package shell; 300, cooling plate; 400, cooling liquid; 500, electromagnetic drive system; 310, microchannel; 320, cavity; 311, main channel; 312, first level branch channel; 313, second level branch channel; 314, third level branch channel. DETAILED DESCRIPTION
[0022] In order to make the utility model purposes, features, advantages of the present application more obvious and easy to understand, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the following described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.
[0024] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments.
[0025] The embodiment of the utility model provides a kind of BMS remote control device, is replaced traditional heat pipe by high-efficiency dynamic heat fluid transport mechanism with biomimetic microcapillary-liquid metal dynamic cooling structure, and is combined with biomimetic tree-like capillary microchannel to improve heat flow management capability, finally achieve the purpose of passive efficient heat dissipation.
[0026] In combination Figure 1 A kind of BMS remote control device, including substrate 100, package shell 200, cooling plate 300, cooling liquid 400 and electromagnetic drive system 500;The substrate 100 is arranged in the package shell 200;The cooling plate 300 covers the substrate 100;Two ends of the cooling plate 300 are respectively provided with cavity 320, and inside etching has microchannel 310 communicated with two the cavity 320, the microchannel 310 one end is equipped as liquid inlet, the other end is equipped as liquid outlet, constitutes cooling circulation loop;The cooling liquid 400 is located in the microchannel 310;The electromagnetic drive system 500 is arranged in the cavity 320 respectively.
[0027] It should be noted that the substrate 100 is the support platform of the entire device, carrying other components of the device, usually composed of metal materials (such as aluminum alloy or copper alloy) to provide good heat conduction performance, and the packaging shell 200 is the external protective structure of the entire device, which plays a sealing role to ensure that the internal components are not affected by the external environment, such as dust, water vapor, etc. Its material can be selected from high-temperature-resistant and corrosion-resistant metals or engineering plastics; The cooling plate 300 is covered on the substrate 100 for heat dissipation, and the cooling plate 300 is designed with two cavities 320, each cavity 320 is connected by microchannels 310 inside, these microchannels 310 form a cooling loop, and the cooling liquid 400 flows therein to take away the heat from various heat source components of the BMS control system. The cooling liquid 400 flows through these channels, absorbs heat, and then is discharged through the liquid outlet to complete the heat dissipation process. The electromagnetic drive system 500 functions to generate electromagnetic force to push the flow of the cooling liquid 400, ensuring smooth flow of the cooling liquid 400 in the microchannels 310. The electromagnetic drive system 500 is generally composed of micro electromagnetic coils, which are arranged according to the flow path of the cooling liquid 400 to control the flow direction of the liquid and optimize the heat dissipation efficiency. Through the electromagnetic drive and the cooling system of the microchannels 310, the heat dissipation not only relies on passive heat conduction, but also actively adjusts the flow of the cooling liquid 400 through electromagnetic force, achieving more efficient heat dissipation effect.
[0028] It is more preferable that the cooling liquid 400 is composed of low-melting-point gallium-based or indium-based alloy. Liquid metal fluid has very high thermal conductivity, compared with traditional water-based or oil-based cooling liquid 400, liquid metal can quickly conduct heat, effectively solving the problem of slow heat transfer speed in traditional liquid cooling system. The role of the electromagnetic drive system 500 is further clarified here, the electromagnetic drive system 500 can effectively transfer heat from high heat power consumption area to cooling area by controlling the flow direction of liquid metal fluid, and maintain the thermal balance of BMS system by using the flow of liquid metal fluid in the microchannel 310. At the same time, the dynamic heat flow distribution formed by the liquid metal fluid in the microchannel 310 can better adapt to the change of system thermal load, and improve the flexibility and adaptability of heat dissipation. The selection of liquid metal as cooling medium can provide higher heat dissipation performance, especially in high heat power consumption area, the rapid heat conduction characteristics of liquid metal make it an ideal choice for high temperature and high power consumption environment. The electromagnetic drive system 500 can accurately control the flow direction of liquid metal, ensure that the cooling liquid 400 can be accurately adjusted according to real-time demand, and enhance the heat dissipation effect of the system. In addition, low-melting-point gallium-based or indium-based alloy can work stably in a lower temperature range, and these metals are not easy to evaporate or volatilize, and can work stably for a long time. In addition, the corrosion resistance of liquid metal cooling liquid 400 is strong, and it is suitable for long-term operation in complex environment. The high thermal conductivity of liquid metal fluid can effectively reduce the temperature of each element inside the BMS device, reduce the influence of overheating on the equipment, and ensure the stable operation of the device under high power consumption conditions. Low-melting-point gallium-based or indium-based alloy can maintain good fluidity, avoid solidification or leakage of metal cooling liquid 400 due to high temperature.
[0029] Further, in combination with Figure 2 and Figure 3The microchannel 310 comprises a main channel 311; one end of the main channel 311 is provided with a liquid inlet and is communicated with one of the cavities 320; the other end of the main channel 311 is communicated with a first-level branch channel 312; the first-level branch channel 312 is communicated with a second-level branch channel 313; one end of the third-level branch channel 314 is communicated with the second-level branch channel 313, and the other end is provided with a liquid outlet and is communicated with another cavity 320; the number of the first-level branch channels 312 is 2, and they are symmetrically communicated with the main channel 311; the number of the second-level branch channels 313 is 4, and every two second-level branch channels 313 are symmetrically communicated with one first-level branch channel 312; the number of the third-level branch channels 314 is 8, and every two third-level branch channels 314 are symmetrically communicated with one second-level branch channel 313; the number of the microchannels 310 is 3; three microchannels 310 are equidistantly arranged on the cooling plate 300, and the main channels 311 and the third-level branch channels 314 of the adjacent two microchannels 310 are respectively communicated with the cavities 320 on the same side.
[0030] It should be noted that the design of the microchannel 310 is further refined, and a main channel 311 is provided in the microchannel 310, one end of the main channel 311 is connected with the cavity 320, the other end is connected with the secondary branch channel 313 through the primary branch channel 312, and finally connected with the liquid outlet through the tertiary branch channel 314, forming a continuous liquid circuit. Through such a design, the cooling liquid 400 can flow into the main channel 311 from the liquid inlet, pass through the primary, secondary and tertiary branch channels 314, and finally be discharged through the liquid outlet, taking away the heat. The step-by-step branching design of the microchannel 310 is similar to a tree-like fractal structure, which can more evenly and efficiently distribute the cooling liquid 400 through the progressively smaller channels and branches, increasing the heat exchange surface area and thus improving the heat dissipation capacity. In particular, through the progressive design of the main channel 311 and the branch channel, the flow path of the cooling liquid 400 is more complex, allowing the heat to be carried away more comprehensively. Through this multi-stage branching design, the cooperation of the main channel 311 and the branch channel can effectively meet the heat dissipation needs of different areas, achieving rapid cooling of local hot spots and thus improving the working stability of the entire BMS system. Secondly, the number of primary branch channels 312 is limited to two, and they are symmetrically connected on both sides of the main channel 311. There are four secondary branch channels 313, and every two secondary branch channels 313 are connected to the same primary branch channel 312 in a symmetrical manner. There are eight tertiary branch channels 314, and every two tertiary branch channels 314 are symmetrically connected to the same secondary branch channel 313. This design optimizes the flow path of the cooling liquid 400 through symmetrical distribution, allowing the cooling liquid 400 to be more evenly distributed to every part of the microchannel 310. Especially during the flow process, the cooling liquid 400 can pass through as many branch areas of the branch channel as possible, improving the heat exchange efficiency. In addition, through the progressively increasing number of branch channels, the cooling liquid 400 can cover the entire cooling plate 300 in a more detailed and uniform manner, improving the heat absorption and transmission efficiency. This multi-stage branch channel design has obvious uniform heat dissipation advantages, effectively reducing the risk of local overheating and ensuring that each part of the BMS device can work under relatively consistent temperature conditions, enhancing the stability of the device. Finally, the three microchannels 310 are equally spaced on the cooling plate 300, and the layout of each microchannel 310 ensures that multiple heat source areas can be covered on the cooling plate 300, and the cooling liquid 400 can flow uniformly to achieve effective heat dissipation. The branch structure of each microchannel 310 remains consistent with the previously described main channel 311 and tertiary branch channel 314. Such a design can optimize the flow path of the cooling liquid 400 and improve the efficiency of heat removal. Adjacent two microchannels 310 are connected on the same side of the cavity 320 through the main channel 311 and the tertiary branch channel 314. This arrangement ensures more uniform flow of the cooling liquid 400, while avoiding excessive temperature difference between heat source areas.The overall design enables multiple heat sources to be cooled synchronously, improving the overall effect of the entire heat dissipation system.
[0031] The multi-level branching structure is adopted, and the channel width is gradually reduced to increase the flow speed of the liquid and reduce the residence time of the liquid in the microchannel 310, thereby improving the heat exchange efficiency. The advantage of the microchannel 310 structure is that it can fully utilize the capillary action and fluid dynamics effect, so that the cooling liquid 400 can flow quickly through the high-heat area along the optimal path, and the heat is transferred to the cooling area through heat exchange. This structure can also provide a larger contact area in a limited space, enhancing the cooling effect. By designing a multi-level recursive branching dendritic microchannel 310, the flow path of the cooling liquid 400 can be precisely controlled, and the flow speed and pressure can be maximized to improve the heat dissipation efficiency, and the channels of different widths can ensure that the cooling requirements of different areas are met.
[0032] Further, the electromagnetic drive system 500 is composed of multiple micro electromagnetic coils, and is sequentially arranged at the connection between the main channel 311 and the first branch channel 312, the connection between the first branch channel 312 and the second branch channel 313, the connection between the second branch channel 313 and the third branch channel 314, and the two cavities 320.
[0033] It should be noted that the system is composed of multiple micro electromagnetic coils, and these electromagnetic coils are arranged at the connection between the main channel 311 and the first branch channel 312, the connection between the first branch channel 312 and the second branch channel 313, the connection between the second branch channel 313 and the third branch channel 314, and the two cavities 320. The electromagnetic drive system 500 pushes the cooling liquid 400 to flow along the microchannel 310 by generating electromagnetic force, ensures the smooth flow of the cooling liquid 400 in the entire loop, and can dynamically adjust the direction of the cooling liquid 400 flow. These electromagnetic coils can adjust the flow rate and flow direction of the cooling liquid 400 according to the change of the heat source, ensure that the cooling liquid 400 can effectively contact the area most in need of heat dissipation, and improve the overall cooling efficiency. Under high temperature working conditions, the flexibility of the electromagnetic drive system 500 enables the cooling liquid 400 to respond quickly, thereby better adapting to the real-time heat dissipation needs of the BMS device, further enhancing the adaptability and stability of the device.
[0034] Further, the width of the main channel 311 is between 100 μm and 500 μm, and the widths of the first branch channel 312, the second branch channel 313, and the third branch channel 314 are gradually reduced to 10 μm to 100 μm.
[0035] It should be noted that the width of the main channel 311 is set to 100-500 microns, and the widths of the first-level branch channel 312, the second-level branch channel 313, and the third-level branch channel 314 are gradually reduced to 10-100 microns. Through this gradual reduction design, the flow rate and flow of the cooling liquid 400 when flowing through each level of branch channel 312 can be more accurate, thereby avoiding the reduction of heat dissipation efficiency caused by too fast or too slow flow rate. The design of gradually reducing the width can effectively improve the flow stability and avoid the waste of too much cooling liquid 400. By controlling the widths of different channels, the distribution of the cooling liquid 400 flow can be accurately adjusted, thereby optimizing the heat dissipation effect of each area. The overall design not only improves the flow efficiency of the cooling liquid 400, but also dynamically adjusts the flow distribution of the channel according to the actual heat dissipation demand, ensuring that the BMS device can still maintain good heat dissipation effect when working at high power.
[0036] Further, the inner wall surface of the main channel 311 is provided with a micron-level protrusion array.
[0037] It should be noted that this micron-level protrusion array increases the inner surface area of the channel, improves the heat exchange efficiency between the cooling liquid 400 and the inner wall of the microchannel 310, and further enhances the cooling effect. This design can effectively promote the flow of the cooling liquid 400 in the channel, thereby reducing the flow resistance of the liquid when passing through the microchannel 310 and improving the efficiency of phase change heat exchange. By increasing the microstructure of the channel surface, the cooling liquid 400 can better contact the channel surface, form stronger heat exchange, and further improve the heat removal capacity. This design helps to improve the heat dissipation capacity when the device is running at high temperature, avoiding the situation that the device is damaged or the function is unstable due to high temperature.
[0038] This micron-level protrusion array increases the inner surface area of the channel, improves the heat exchange efficiency between the cooling liquid 400 and the inner wall of the microchannel 310, and further enhances the cooling effect. This design can effectively promote the flow of the cooling liquid 400 in the channel, thereby reducing the flow resistance of the liquid when passing through the microchannel 310 and improving the efficiency of phase change heat exchange.
[0039] By increasing the microstructure of the channel surface, the cooling liquid 400 can better contact the channel surface, form stronger heat exchange, and further improve the heat removal capacity. This design helps to improve the heat dissipation capacity when the device is running at high temperature, avoiding the situation that the device is damaged or the function is unstable due to high temperature.
[0040] The above-described above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A BMS remote control device, characterized in that, Includes substrate, packaging housing, cooling plate, coolant, and electromagnetic drive system; The substrate is disposed inside the packaging housing; The cooling plate covers the substrate; The cooling plate has cavities at both ends, and microchannels communicating with the two cavities are etched inside. One end of the microchannel is a liquid inlet, and the other end is a liquid outlet, forming a cooling circulation loop. The coolant is placed inside the microchannel. The electromagnetic drive systems are respectively installed inside the cavity.
2. The BMS remote control device according to claim 1, characterized in that, The microchannel includes a main channel; One end of the main channel is provided with a liquid inlet and is connected to one of the cavities; the other end of the main channel is connected to a primary branch channel. The primary branch channel is connected to a secondary branch channel; One end of the tertiary branch channel is connected to the secondary branch channel, and the other end is set as a liquid outlet and connected to another cavity.
3. The BMS remote control device according to claim 2, characterized in that, There are two primary branch channels, which are symmetrically connected to the main channel; There are four secondary branch channels, and every two secondary branch channels are symmetrically connected to one primary branch channel; There are 8 tertiary branch channels, and every two tertiary branch channels are symmetrically connected to one secondary branch channel.
4. The BMS remote control device according to claim 3, characterized in that, The number of microchannels is 3; The three microchannels are equidistantly arranged on the cooling plate, and two adjacent microchannels are respectively provided with the main channel and the three-level branch channel, which are connected to the cavity on the same side.
5. The BMS remote control device according to claim 2, characterized in that, The electromagnetic drive system consists of multiple miniature electromagnetic coils, which are sequentially arranged at the connection points of the main channel and the first-level branch channel, the first-level branch channel and the second-level branch channel, the second-level branch channel and the third-level branch channel, and inside the two cavities.
6. The BMS remote control device according to claim 2, characterized in that, The width of the main channel is between 100μm and 500μm, and the widths of the first-level branch channel, the second-level branch channel, and the third-level branch channel gradually decrease to between 10μm and 100μm.
7. The BMS remote control device according to claim 2, characterized in that, The inner wall surface of the main channel is provided with a micron-level protrusion array.