Heat dissipation structure and charging device

Abstract

The utility model discloses a kind of heat dissipation structure and charging equipment, belong to battery heat dissipation technical field, the charging equipment includes shell and battery unit, the heat dissipation structure is embedded on the shell, the battery unit is arranged between the heat dissipation cold plate of the heat dissipation structure.The utility model by the heat dissipation structure is arranged in the battery unit both sides, can timely absorb the heat of the battery unit;By the heat dissipation cold plate is installed on the pull plate and is equipped with fixing part, formed the design of the pull type heat dissipation structure of convenient replacement and installation, solved the problem that temperature in cavity cannot be dissipated, realized the flexibility heat dissipation of the charging equipment.In addition, the heat dissipation cold plate is equipped with the fin and the heat conduction sheet, optimized heat conduction uniformity and heat conduction efficiency, guarantee the heat dissipation reliability of the heat dissipation structure.

Description

Technical Field

[0001] This utility model relates to the field of battery heat dissipation technology, and in particular to a heat dissipation structure and charging device. Background Technology

[0002] To meet users' demands for portable and efficient charging devices, the power density of charging devices is constantly increasing, and their internal structures are becoming more compact. At the same time, to adapt to complex environments, protection requirements are also rising. The increase in power density has significantly increased heat generation per unit volume, and the compact structure and enclosed protective shell further hinder heat dissipation, resulting in common problems with heat dissipation in existing charging devices, and thermal shock damage to battery performance and lifespan.

[0003] To address such issues, heat dissipation technology is often used to rapidly diffuse locally concentrated heat, or insulation is employed to block heat transfer paths and resist the high temperatures generated by the battery. However, due to the long-term operation of charging equipment and limitations imposed by the size and structural strength of the cavity, even with insulation and heat dissipation technologies, heat can easily accumulate inside the cavity, leading to excessive internal temperatures and battery damage. Utility Model Content

[0004] The present invention aims to overcome the problem of heat accumulation inside the device caused by the prior art, and provides a heat dissipation structure and charging device.

[0005] To achieve the above objectives, the present invention provides a heat dissipation structure, including a pull-out plate and a heat dissipation plate, wherein the heat dissipation plate is mounted on the pull-out plate, and there is a gap between any two adjacent heat dissipation plates.

[0006] In one embodiment, the heat dissipation plate includes a shell, fins, and filler. The shell covers the fins and the filler. The fins are arranged along the length of the shell. There is a gap between two adjacent fins. The filler fills the space between the fins and the shell.

[0007] In one embodiment, the heat dissipation plate further includes a heat-conducting plate, which is installed inside the housing and is arranged along the length of the housing. The fins and the heat-conducting plate are arranged alternately, and the filler is filled between the fins and the heat-conducting plate.

[0008] In one embodiment, the fins and the heat-conducting plates are arranged alternately to form a plate-like structure, and at least one layer of the plate-like structure is provided inside the housing, the plate-like structure being parallel to the top and bottom walls of the housing.

[0009] In one embodiment, the heat dissipation structure further includes a fixing member disposed on the heat dissipation cold plate.

[0010] In one embodiment, the pull-out plate includes a first module and a second module, which are arranged alternately. The first module is connected to the heat dissipation plate, and the second module is in contact with the battery cell.

[0011] This utility model also provides a charging device, including the heat dissipation structure as described above, a housing and a battery unit, wherein the heat dissipation structure is mounted on the housing and the battery unit is disposed between the heat dissipation plates of the heat dissipation structure.

[0012] In one embodiment, the housing includes a limiting baffle, a plurality of first mounting slots and a plurality of second mounting slots. The plurality of the limiting baffles are installed at one end of the housing. The first mounting slots and the second mounting slots are formed between two adjacent limiting baffles. The first mounting slots and the second mounting slots are arranged alternately along the height direction of the housing.

[0013] In one embodiment, the housing further includes a slot disposed within the first mounting slot.

[0014] In one embodiment, the charging device is further equipped with a thermistor and a monitoring system, wherein the thermistor is connected to the heat dissipation plate and the monitoring system.

[0015] In summary, this utility model provides a heat dissipation structure and a charging device. By arranging the heat dissipation structure on both sides of the battery cell, the heat from the battery cell can be absorbed in a timely manner. By mounting the heat dissipation plate on the pull-out plate and installing fixing components, a pull-out heat dissipation structure design that is easy to replace and install is formed, solving the problem of insufficient heat dissipation inside the cavity and realizing flexible heat dissipation of the charging device. In addition, the heat dissipation plate is equipped with fins and heat-conducting sheets, which optimizes the uniformity and efficiency of heat conduction, ensuring the reliability of the heat dissipation structure.

[0016] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heat dissipation structure in this utility model.

[0018] Figure 2 for Figure 1 A sectional view.

[0019] Figure 3 for Figure 1 Top view.

[0020] Figure 4This is a schematic diagram of the charging device in this utility model.

[0021] Figure 5 This is a schematic diagram of the outer shell of this utility model.

[0022] Figure 6 for Figure 5 Top view.

[0023] Figure label:

[0024] Heat dissipation structure-1;

[0025] Pull-out plate-11; Heat dissipation plate-12; Fastener-13;

[0026] First module - 111; Second module - 112; Shell - 121; Fins - 122; Heat-conducting plate - 123; Filler - 124;

[0027] Outer shell -2;

[0028] Limiting baffle-21; First mounting slot-22; Second mounting slot-23; Card slot-24;

[0029] Battery cell-3. Detailed Implementation

[0030] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] To address the problem of internal heat buildup caused by the inability to dissipate heat in existing heat dissipation designs, this invention employs a combined heat storage and heat dissipation method, providing a heat dissipation structure. Figure 1 This is a schematic diagram of the heat dissipation structure 1 in this utility model. (As shown...) Figure 1 As shown, the heat dissipation structure 1 includes a pull-out plate 11, a plurality of heat dissipation plates 12, and a plurality of fixing members 13. The pull-out plate 11 is equipped with a plurality of heat dissipation plates 12. Any two adjacent heat dissipation plates 12 are aligned and spaced apart. The fixing members 13 are provided on both sides of any heat dissipation plate 12. Each heat dissipation plate 12 is an independent closed structure.

[0032] The pull-out plate 11 adopts a layered design, and includes a first module 111 and a second module 112, which are arranged alternately. The first module 111 is used to install the heat dissipation plate 12, and the second module 112 will contact the battery unit 3.

[0033] Figure 2 for Figure 1 A sectional view, such as Figure 2 As shown, the heat dissipation plate 12 includes a shell 121, fins 122, heat-conducting plates 123, and filler 124. The shell 121 wraps around the fins 122, the heat-conducting plates 123, and the filler 124. The fins 122 and the heat-conducting plates 123 are arranged along the length of the shell 121. The fins 122 and the heat-conducting plates 123 are arranged alternately. The filler 124 fills the space between the fins 122, the heat-conducting plates 123, and the shell 121.

[0034] The housing 121 may be made of, but is not limited to, an aluminum plate. The housing 121 serves as the frame for the heat dissipation plate 12, providing structural strength and encapsulation protection to prevent leakage of the internal filler 124 and maintaining the arrangement stability of the internal fins 122 and heat-conducting plates 123. Furthermore, the housing 121 also possesses a certain degree of thermal conductivity, enabling preliminary absorption of heat generated by the battery and thus playing a role in initial heat dissipation.

[0035] There is a gap between any two adjacent fins 122 for mounting the heat-conducting plate 123. The fins 122 may be S-shaped and may be made of materials with good thermal conductivity, including but not limited to copper and aluminum. The fins 122 can increase the contact area with the filler 124, promote heat transfer, avoid local overheating, and provide a certain structural support.

[0036] The heat-conducting plate 123 can be made of a material with a high thermal conductivity; preferably, the heat-conducting plate 123 is made of copper. The heat-conducting plate 123 is used to assist heat transfer, further improve the heat uniformity inside the heat dissipation plate 12, and ensure the utilization rate of the fins 122 and the filler 124.

[0037] The fins 122 and the heat-conducting plates 123 are arranged alternately to form a plate-like structure. At least one layer of this plate-like structure is provided inside the housing 121, and the plate-like structure is parallel to the top and bottom walls of the housing 121. Preferably, the plate-like structure is located on the top and bottom walls of the housing 121.

[0038] The filler 124 is disposed in the hollow space inside the housing 121 and in the gaps between the fins 122 and the heat-conducting plate 123. The filler 124 is a phase change material (PCM material) with a phase change temperature range of 20-45℃. The phase change material absorbs heat from the housing 121, the fins 122 and the heat-conducting plate 123 in a timely manner by utilizing phase change, storing it in the form of latent heat; and slowly releasing heat under suitable conditions, thereby achieving effective heat management and achieving the effect of high-temperature heat storage and low-temperature heat release. It can cope with complex and changeable environments and provide good protection for the battery unit 3.

[0039] Figure 3 for Figure 1 Top view, such as Figure 3 As shown, the fixing member 13 can be selected from, but is not limited to, snap-on springs, pop-out springs, clip-on springs, and press-type springs. The fixing member 13 is used to fix the heat dissipation plate 12 and is easy to install and remove.

[0040] Figure 4 This is a schematic diagram of the charging device of the present invention. The charging device includes a heat dissipation structure 1 as described above, a housing 2, and a plurality of battery units 3. The heat dissipation structure 1 is mounted on the housing 2, and the battery units 3 are disposed between the heat dissipation cold plates 12 of the heat dissipation structure 1.

[0041] like Figure 5 and Figure 6 As shown, the outer casing 2 includes a limiting baffle 21, a slot 24, a plurality of first mounting slots 22, and a plurality of second mounting slots 23. A plurality of the limiting baffles 21 are installed at one end of the outer casing 2. The first mounting slots 22 and second mounting slots 23 are formed between adjacent limiting baffles 21. The first mounting slots 22 and second mounting slots 23 are arranged alternately along the height direction of the outer casing 2. The slots 24 are provided within the first mounting slots 22. The limiting baffles 21 are used to separate the first mounting slots 22 and second mounting slots 23, and provide a certain supporting function to ensure the installation stability of the battery unit 3 and the heat dissipation plate 12. Adjacent limiting baffles 21 and the sidewalls together form a closed outer casing structure. The first mounting slots 22 and second mounting slots 23 are respectively used to accommodate the heat dissipation plate 12 and the battery unit 3. The number and size of the first mounting slots 22 and second mounting slots 23 correspond to the number and size of the heat dissipation plate 12 and the battery unit 3, respectively. The slot 24 is used to connect the fixing member 13 on the heat dissipation plate 12, and serves to fix the heat dissipation plate 12.

[0042] In addition, the charging device is also equipped with a thermistor and a monitoring system. The thermistor is connected to the heat dissipation plate 12 and the monitoring system. The thermistor is used to detect the temperature of the heat dissipation structure 1 in real time and feed it back to the monitoring system.

[0043] Combination Figures 1 to 6 When the charging device discharges at a high rate, the battery cell 3 will rapidly heat up in a short time. Since the battery cell 3 is equipped with heat dissipation plates 12 on both sides, according to the principle of heat conduction, the heat emitted by the battery cell 3 will be absorbed by the heat dissipation plates 12 on both sides in a timely manner. The heat will be rapidly conducted from the battery cell 3 to the housing 121, and then to the filler 124. The fins 122 inside the filler 124 increase the heat dissipation area, and the heat-conducting sheet 123 ensures uniform temperature, effectively improving the heat dissipation response speed and heat transfer efficiency of the filler 124. Furthermore, the phase change material used in the filler 124 has high latent heat characteristics, enabling it to absorb a large amount of heat energy with a small temperature rise. Under the synergistic effect of the housing 121, the fins 122, the heat-conducting sheet 123, and the filler 124, the heat dissipation plates 12 can provide heat dissipation protection for the battery cell 3, slowing down the temperature rise rate of the battery cell 3 and allowing the temperature of the battery cell 3 to be controlled accordingly.

[0044] To address the issue that the heat dissipation plate 12's heat absorption capacity decreases and it ceases to function properly once it has absorbed sufficient heat and reached heat absorption saturation, a thermistor is used to monitor the temperature of the heat dissipation plate 12 in real time. The monitored temperature value is then fed back to the monitoring system, which determines whether the measured temperature value has reached the limit of the heat dissipation plate 12. If the measured temperature value reaches the limit, the monitoring system will issue a replacement prompt. The heat dissipation structure 1 adopts an integral pull-out design, allowing the user to directly pull out the heat dissipation structure 1 when it reaches saturation and replace it with a new one. Notably, the heat dissipation structure 1 can be removed as a whole, or a single layer of the heat dissipation plate 12 can be removed individually. When the heat dissipation structure 1 is a single, extractable unit, if the charging device contains multiple battery cells 3, the temperature of the battery cell 3 located in the middle is often higher. Therefore, the heat dissipation plate 12 near the middle battery cell 3 will preferentially reach heat absorption saturation. When the temperature of the heat dissipation plate 12 located in the middle reaches a limit, the heat dissipation plate 12 can be replaced in time. Preferably, the thermistor only monitors and provides feedback on the temperature of the heat dissipation plate 12 located in the middle, achieving efficient monitoring.

[0045] In summary, this utility model provides a heat dissipation structure 1 and a charging device. By arranging the heat dissipation structure 1 on both sides of the battery unit 3, the heat from the battery unit 3 can be absorbed in a timely manner. By mounting the heat dissipation plate 12 on the pull-out plate 11 and installing the fixing member 13, a pull-out heat dissipation structure 1 that is easy to replace and install is formed, solving the problem of insufficient heat dissipation inside the cavity and realizing flexible heat dissipation of the charging device. In addition, the heat dissipation plate 12 is equipped with the fins 122 and the heat-conducting sheet 123, which optimizes the uniformity and efficiency of heat conduction and ensures the reliability of heat dissipation of the heat dissipation structure 1.

[0046] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A heat dissipation structure, characterized in that, It includes a pull-out plate and a heat dissipation plate. The heat dissipation plate is mounted on the pull-out plate, and there is a gap between any two adjacent heat dissipation plates. The heat dissipation plate includes a shell, fins and filler. The shell wraps around the fins and the filler. The fins are arranged along the length direction of the shell. There is a gap between two adjacent fins. The filler fills the space between the fins and the shell.

2. The heat dissipation structure as described in claim 1, characterized in that, The heat dissipation plate also includes a heat-conducting plate, which is installed inside the housing and is arranged along the length of the housing. The fins and the heat-conducting plate are arranged alternately, and the filler is filled between the fins and the heat-conducting plate.

3. The heat dissipation structure as described in claim 2, characterized in that, The fins and the heat-conducting plates are arranged alternately to form a plate-like structure. At least one layer of the plate-like structure is provided inside the shell. The plate-like structure is parallel to the top and bottom walls of the shell.

4. The heat dissipation structure as described in claim 1, characterized in that, The heat dissipation structure also includes a fixing component, which is disposed on the heat dissipation plate.

5. A heat dissipation structure as described in claim 1, characterized in that, The pull-out plate includes a first module and a second module, which are arranged alternately. The first module is connected to the heat dissipation plate, and the second module is in contact with the battery unit.

6. A charging device, characterized in that, It includes a heat dissipation structure as described in any one of claims 1-5, a housing, and a battery unit, wherein the heat dissipation structure is mounted on the housing, and the battery unit is disposed between the heat dissipation plates of the heat dissipation structure.

7. A charging device as described in claim 6, characterized in that, The outer shell includes a limiting baffle, a plurality of first mounting slots and a plurality of second mounting slots. A plurality of the limiting baffles are installed at one end of the outer shell. The first mounting slots and the second mounting slots are formed between two adjacent limiting baffles. The first mounting slots and the second mounting slots are arranged alternately along the height direction of the outer shell.

8. A charging device as described in claim 7, characterized in that, The housing also includes a card slot, which is disposed within the first mounting slot.

9. A charging device as described in claim 8, characterized in that, The charging device is also equipped with a thermistor and a monitoring system. The thermistor is connected to the heat dissipation plate and the monitoring system.

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