Liquid leakage detection device for liquid cooling charging base

Abstract

The invention provides a liquid-cooling charging seat liquid leakage detection device, the liquid-cooling charging seat liquid leakage detection device is installed in a liquid-cooling charging seat, the liquid-cooling charging seat liquid leakage detection device comprises a storage box, the storage box is internally provided with a detection assembly and a first water absorption member which are distributed in a layered manner, and the detection assembly comprises a detection plate. The detection plate is used for forming a liquid leakage detection signal after being in contact with the leaked cooling liquid; the detection plate is provided with two signal outgoing lines, and the signal outgoing lines are used for transmitting liquid leakage detection signals of the detection plate. Due to the fact that the first water absorption piece has a siphon drainage function on the cooling liquid, the leakage liquid can be quickly guided to a detection area, the detection plate can quickly respond and form an electric signal during trace leakage, leakage information can be fed back to an upper-layer control system (such as a vehicle-mounted or charging platform) in time for early warning in advance, and accident expansion is avoided. Therefore, the technical problem that in the prior art, a liquid cooling charging base is lack of a liquid leakage detection device is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid leakage detection, and particularly to a liquid leakage detection device for a liquid-cooled charging stand. Background Art

[0002] With the rapid development of high-power electric devices such as electric heavy trucks, electric mining trucks, electric ships, and electric aviation, higher requirements are put forward for the safety and reliability of their charging systems. To meet the heat dissipation requirements of high-current charging, liquid-cooling technology has been widely applied to the charging stand system. The liquid-cooled charging stand is usually connected through a heat conduction box and a liquid-cooling pipe, and the flow and sealing of the coolant are realized by means of a fluid adapter. The coolant mostly uses a mixture of water and ethylene glycol. Although its good thermal conductivity meets the heat dissipation requirements, its electrical conductivity also brings potential safety hazards.

[0003] In the prior art, due to factors such as aging of the sealing ring, vibration shock, or poor assembly, the fluid adapter is prone to coolant leakage. Once the coolant leaks into the electrical connection area, it is extremely easy to cause short circuits, equipment failures, and even safety accidents. Therefore, the existing liquid-cooled charging stands generally lack an effective means to monitor the leakage of the liquid-cooling system in real time. Especially in the application scenarios with limited space, there is a lack of a liquid leakage detection device with a compact structure, sensitive response, and easy integration. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid leakage detection device for a liquid-cooled charging stand, which solves the technical problem that the existing liquid-cooled charging stand lacks a liquid leakage detection device.

[0005] To achieve this purpose, the present invention adopts the following technical solutions: A liquid leakage detection device for a liquid-cooled charging stand, the liquid leakage detection device for the liquid-cooled charging stand is installed in the liquid-cooled charging stand. The liquid leakage detection device for the liquid-cooled charging stand includes a storage box, and a detection component and a first water-absorbing member are installed in the storage box in a layered distribution. The first water-absorbing member is used to siphon the leaked coolant in the liquid-cooled charging stand; The detection component includes a detection board. The first water-absorbing member is lapped with the detection board. The detection board is used to form a liquid leakage detection signal after contacting the leaked coolant; two signal lead-out wires are installed on the detection board, and the signal lead-out wires are used to transmit the liquid leakage detection signal of the detection board.

[0006] Optionally, the detection board is a PCB printed board. The detection board includes a substrate, and a first detection layer and a second detection layer are provided at intervals on the substrate. The first detection layer and the second detection layer are conducted through the leaked coolant in the liquid-cooled charging stand and generate a liquid leakage detection signal; The first detection layer is electrically connected to one of the signal lead-out wires, and the second detection layer is electrically connected to the other signal lead-out wire.

[0007] Optionally, the first detection layer includes a plurality of first detection strips arranged in parallel. One ends of the plurality of first detection strips are all connected to a first connection strip, and the first connection strip is electrically connected to one of the signal lead-out wires. The second detection layer includes a plurality of second detection strips arranged in parallel. One ends of the plurality of second detection strips are all connected to a second connection strip, and the second connection strip is electrically connected to the other signal lead-out wire. The first detection strips and the second detection strips are arranged alternately with gaps, and the first detection strips and the first connection strip are both arranged with gaps from the second detection strips and the second connection strip to form a serpentine groove.

[0008] Optionally, it further includes a second water-absorbing member installed in the storage box. The second water-absorbing member is pressed against the first water-absorbing member, and the second water-absorbing member is used for siphoning the leaked coolant in the liquid-cooled charging base.

[0009] Optionally, the storage box includes a first storage shell, a folding connecting rib, and a second storage shell connected in sequence. The detection board is installed in the first storage shell, and the second storage shell is pressed against the second water-absorbing member. The first storage shell and the second storage shell are detachably connected. The first storage shell is provided with a storage border with an integrally formed structure, and the storage border fences the leaked liquid stored in the first storage shell.

[0010] Optionally, the first storage shell and the second storage shell are in snap-fit connection. The first storage shell is provided with a first bolt hole, and the second storage shell is provided with a second bolt hole corresponding to the first bolt hole.

[0011] Optionally, the first storage shell is provided with a first avoidance hole and a second avoidance hole. The first avoidance hole is used for avoiding the connection pins of the detection board, and the second avoidance hole is used for avoiding the two signal lead-out wires.

[0012] Optionally, the first storage shell is provided with a pre-installation hole, and the second storage shell is provided with a pre-installation spring buckle corresponding to the pre-installation hole. The pre-installation spring buckle passes through the pre-installation hole and is snap-connected to the first storage shell.

[0013] Optionally, the pre-installation spring buckle includes two oppositely arranged buckle bodies. Each buckle body is provided with a clamping portion, the buckle body is provided with a first guiding inclined surface, and the clamping portion is provided with a second guiding inclined surface.

[0014] Compared with the prior art, the present invention has the following beneficial effects: A liquid leakage detection device for a liquid-cooled charging base provided by the present invention, due to the siphon drainage function of the first water-absorbing member for the coolant, can quickly guide the leaked liquid to the detection area. The detection board can quickly respond and form an electrical signal during a slight leakage, and can timely feedback the leakage information to the upper control system (such as a vehicle-mounted or charging platform) for early warning to avoid the expansion of accidents. By integrating the detection board and the first water-absorbing member into the storage box, the modular design facilitates installation and replacement. Therefore, the technical problem that the prior art lacks a liquid leakage detection device for a liquid-cooled charging base is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present invention.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of a liquid leakage detection device for a liquid-cooled charging base disclosed in an embodiment of the present invention; Figure 2 It is an open state schematic diagram of a liquid leakage detection device for a liquid-cooled charging base disclosed in an embodiment of the present invention; Figure 3 It is an exploded structure schematic diagram of a liquid leakage detection device for a liquid-cooled charging base disclosed in an embodiment of the present invention; Figure 4 It is a structure schematic diagram of a detection component in a liquid leakage detection device for a liquid-cooled charging base disclosed in an embodiment of the present invention; Figure 5 For Figure 4 The enlarged structure schematic diagram at A; Figure 6 For Figure 4 The enlarged structure schematic diagram at B; Figure 7 It is an open state schematic diagram of a storage box in a liquid leakage detection device for a liquid-cooled charging base disclosed in an embodiment of the present invention; Figure 8 For Figure 7 The enlarged structure schematic diagram at C.

[0018] Illustration Description: 10. Storage box; 11. First storage shell; 111. Storage surrounding edge; 112. First bolt hole; 113. First avoidance hole; 114. Second avoidance hole; 115. Pre-installed hole; 12. Folding connecting rib; 13. Second storage shell; 131. Second bolt hole; 14. Pre-installed snap button; 141. Buckle body; 1411. First guide slope; 142. Clamping part; 1421. Second guide slope; 20. Detection assembly; 21. Detection board; 211. Base plate; 212. First detection layer; 2121. First detection strip; 2122. First connecting strip; 213. Second detection layer; 2131. Second detection strip; 2132. Second connecting strip; 22. Signal lead wire; 30. A first water-absorbing member; 40. A second water-absorbing member. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] The embodiment of the present invention provides a liquid cooling charging station leakage detection device, such as Figures 1 to 8 As shown, the liquid-cooled charging seat leakage detection device is installed in the liquid-cooled charging seat, and the liquid-cooled charging seat leakage detection device includes a storage box 10, in which a layered detection component 20 and a first water absorbing member 30 are installed, and the first water absorbing member 30 is used to siphon the cooling liquid leaking in the liquid-cooled charging seat; The detection component 20 includes a detection board 21, the first water-absorbing member 30 is lapped with the detection board 21, and the detection board 21 is used to form a liquid leakage detection signal after contacting the leaked coolant; two signal lead-out wires 22 are installed on the detection board 21, and the signal lead-out wires 22 are used to transmit the liquid leakage detection signal of the detection board 21.

[0023] It should be noted that for a liquid-cooled charging base liquid leakage detection device provided by the present invention, since the first water-absorbing member 30 has a siphon drainage function for the coolant, it can quickly guide the leaked liquid to the detection area. The detection board 21 can quickly respond and form an electrical signal during minor leakage, and can timely feedback the leakage information to the upper control system (such as in-vehicle or charging platform) for early warning to avoid the expansion of accidents. By integrating the detection board 21 and the first water-absorbing member 30 into the storage box 10, the modular design is convenient for installation and replacement. Therefore, the technical problem that the liquid-cooled charging base lacks a liquid leakage detection device in the prior art is solved.

[0024] As Figures 1 to 6 As shown, the detection board 21 is a PCB printed board. The detection board 21 includes a substrate 211, and a first detection layer 212 and a second detection layer 213 are provided at intervals on the substrate 211. The first detection layer 212 and the second detection layer 213 are conducted through the coolant leaked in the liquid-cooled charging base and generate a liquid leakage detection signal; The first detection layer 212 is electrically connected to one of the signal lead-out wires 22, and the second detection layer 213 is electrically connected to the other signal lead-out wire 22. In this embodiment, once the coolant leaks from the fluid adapter, it is siphoned by the first water-absorbing member 30 and conducted to the detection board 21; the coolant serves as a conductive medium to bridge a path between the first detection layer 212 and the second detection layer 213 to form a closed circuit, and then an electrical conduction signal is generated on the PCB printed board and transmitted to the upper system (such as in-vehicle or charging platform) through the signal lead-out wire 22 to achieve liquid leakage alarm or power-off operation.

[0025] It should be noted that the first detection layer 212 and the second detection layer 213 are conducted through the coolant, and detection can be triggered without a large amount of liquid accumulation; once the leaked liquid is absorbed and contacted, a signal can be generated on the circuit, with a short response time and early alarm can be realized. The entire detection board 21 can be independently replaced or modularly encapsulated in the storage box 10; through the setting of the signal lead-out wires 22, it is convenient to match with various controller interfaces and adapt to the structures of various charging devices.

[0026] As Figures 1 to 6 As shown, the first detection layer 212 includes a plurality of first detection strips 2121 arranged in parallel. One ends of the plurality of first detection strips 2121 are all connected to the first connection strip 2122, and the first connection strip 2122 is electrically connected to one of the signal lead-out wires 22; The second detection layer 213 includes a plurality of second detection strips 2131 arranged in parallel. One ends of the plurality of second detection strips 2131 are all connected to a second connection strip 2132, and the second connection strip 2132 is electrically connected to another signal lead-out wire 22; The first detection strip 2121 and the second detection strip 2131 are arranged alternately with gaps. The first detection strip 2121 and the first connection strip 2122 are both arranged with gaps from the second detection strip 2131 and the second connection strip 2132 to form a serpentine groove. Specifically, both the first detection layer 212 and the second detection layer 213 can be made of conductive materials such as copper foil.

[0027] It should be noted that the first detection strip 2121 and the second detection strip 2131 are arranged alternately and interspersed to form a serpentine groove structure. The serpentine groove structure makes it easier for leakage liquid in multiple directions to contact the first detection strip 2121 and the second detection strip 2131 within the shortest path. This geometric arrangement improves the contact opportunity between the detection area and the coolant, effectively expands the sensing range, and is suitable for micro-leakage warning. The first detection strip 2121 and the second detection strip 2131 are completely isolated under normal conditions and will not trigger signals by mistake; once leakage occurs, the coolant fills the serpentine groove to form a reliable conduction path, improving signal consistency. Using the physical presence of the coolant as a conductive medium, non-liquid or humid environments will not cause conduction. The detection board 21 can be completed by conventional PCB processes without adding new special sensors or devices. The overall structure is clear and the wiring is regular, facilitating industrial production and detection consistency control.

[0028] As Figures 1 to 3 shown, it further includes a second water-absorbing member 40 installed in the storage box 10. The second water-absorbing member 40 is pressed against the first water-absorbing member 30, and the second water-absorbing member 40 is used to siphon the leaked coolant in the liquid-cooled charging seat. In this embodiment, the second water-absorbing member 40 is tightly pressed against the first water-absorbing member 30 to form a continuous liquid-absorbing path. The second water-absorbing member 40 can adopt the same or higher-performance liquid-absorbing materials as the first water-absorbing member 30 (such as high-density rock wool, hydrophilic foam, etc.); both the first water-absorbing member 30 and the second water-absorbing member 40 can be custom-molded according to the shape of the storage box 10, facilitating pressing and fixing.

[0029] It should be noted that the second water-absorbing member 40, as the "first-layer liquid absorber", can immediately absorb the leaked coolant; Due to the crimping of the second absorbent member 40 and the first absorbent member 30, liquid can be quickly transferred downward by capillary action and rapidly introduced into the detection area; compared with the structure with only one layer of absorbent material, the overall response time is significantly shortened. By providing the second absorbent member 40, the liquid absorption area and the three-dimensional absorption path are increased, and coolant leakage in more directions can be captured, which is particularly suitable for the actual installation environment where the liquid diffusion direction is uncertain and the interface is complex. The second absorbent member 40 preferentially adsorbs the leaked liquid above to prevent the liquid from directly dripping or splashing onto the detection board 21; delaying the long-term exposure of the detection board 21 to the wet state is beneficial to improving the circuit life and reducing the probability of mis-conduction.

[0030] As Figure 1 , Figure 2 , Figure 7 and Figure 8 shown, the storage box 10 includes a first storage shell 11, a folding connecting rib 12, and a second storage shell 13 that are connected in sequence. The detection board 21 is installed in the first storage shell 11, and the second storage shell 13 is crimped with the second absorbent member 40; the first storage shell 11, the folding connecting rib 12, and the second storage shell 13 are an integrally formed structure; The first storage shell 11 and the second storage shell 13 are detachably connected. The first storage shell 11 is provided with a storage border 111 of an integrally formed structure, and the storage border 111 fences the leaked liquid stored in the first storage shell 11. In this embodiment, the folding connecting rib 12, as a key component connecting the first storage shell 11 and the second storage shell 13, not only plays a structural support role but also ensures the stability during the disassembly of the shell.

[0031] It should be noted that through the provision of the storage border 111, it is ensured that the leaked liquid will not spread inside and outside the storage box 10, enhancing the leak prevention property of the detection device, enabling the coolant to be effectively guided inside the storage box 10, and reducing the safety hazard caused by external leakage. The first absorbent member 30 and the second absorbent member 40 can ensure the maximum absorption efficiency of the absorbent material, effectively guide the coolant to the detection board 21, and the layered structure helps the distribution of the liquid, enabling the liquid to quickly contact the PCB board and rapidly trigger the detection signal, improving the reaction speed of the system. The first storage shell 11 and the second storage shell 13 are connected by the folding connecting rib 12 and are detachable, and this modular setting makes the installation and replacement of the entire device more flexible and convenient.

[0032] As Figure 1 , Figure 2 , Figure 7 and Figure 8 shown, the first storage shell 11 and the second storage shell 13 are in snap-fit connection. The first storage shell 11 is provided with a first bolt hole 112, and the second storage shell 13 is provided with a second bolt hole 131 corresponding to the first bolt hole 112.

[0033] It should be noted that the first storage case 11 and the second storage case 13 are connected to each other by a snap connection method, which enables the first storage case 11 and the second storage case 13 to be easily disassembled, facilitating assembly and maintenance. Through the settings of the first bolt hole 112 and the second bolt hole 131, the storage box 10 is easily fixedly connected by bolts. The setting of the storage edge 111 can enhance the sealing performance of the storage box 10 and improve the efficiency of liquid collection.

[0034] As Figures 1 to 8 shown, the first storage case 11 is provided with a first avoidance hole 113 and a second avoidance hole 114. The first avoidance hole 113 is used to avoid the connection pins of the detection board 21, and the second avoidance hole 114 is used to avoid two signal lead-out wires 22.

[0035] It should be noted that through the setting of the first avoidance hole 113, it is ensured that the connection pins of the detection board 21 can pass through the first storage case 11 smoothly without being physically blocked, thus avoiding damage or poor contact of the connection pins. In addition, through the setting of the second avoidance hole 114, the smooth passing of the signal lead-out wires 22 is effectively guaranteed, avoiding unstable or distorted signal transmission caused by the signal leads being squeezed or interfered. By reserving the first avoidance hole 113 and the second avoidance hole 114, the installation of the connection pins and the signal lead-out wires 22 is made more convenient, avoiding interference with other components during the assembly process, improving the overall assembly efficiency; it also reduces the positions that need to be manually adjusted or corrected during assembly, improving the production efficiency and consistency. Through the settings of the first avoidance hole 113 and the second avoidance hole 114, the signal wires and the connection pins can avoid physical contact with other components, reducing signal errors or interference caused by friction or extrusion; it can ensure the integrity and accuracy of the signal, thereby improving the accuracy of the liquid leakage detection system.

[0036] As Figure 1 、 Figure 2 、 Figure 7 and Figure 8 shown, the first storage case 11 is provided with a pre-installation hole 115, and the second storage case 13 is provided with a pre-installation snap 14 corresponding to the pre-installation hole 115. After passing through the pre-installation hole 115, the pre-installation snap 14 is snap-connected to the first storage case 11.

[0037] It should be noted that through the use and cooperation of the pre-installation hole 115 and the pre-installation snap 14, the pre-installation of the first storage case 11 and the second storage case 13 can be quickly completed without additional tools during the assembly process, improving the production efficiency; the snap connection design avoids the use of traditional bolts or complex fixing parts, simplifying the pre-installation assembly process of the storage box 10. Through the elastic action of the pre-installation snap 14, it is ensured that the first storage case 11 and the second storage case 13 are firmly snap-connected and will not become loose due to vibration or external force during the operation of the device.

[0038] As shown Figure 7 and Figure 8 shown, the pre - installed snap - fastener 14 includes two oppositely - arranged snap - body 141. Each snap - body 141 is provided with a clamping portion 142. The snap - body 141 is provided with a first guiding inclined surface 1411, and the clamping portion 142 is provided with a second guiding inclined surface 1421.

[0039] It should be noted that the design of the guiding inclined surface enables the pre - installed snap - fastener 14 to be smoothly inserted and accurately docked to the predetermined position, avoiding the errors that may be brought by manual adjustment and improving the assembly efficiency; through this structural arrangement, the assembler can quickly complete the snap - connection work without the help of external tools, reducing the installation time. The clamping portion 142 plays a clamping role, ensuring the stable connection between the pre - installed snap - fastener 14 and the first storage shell 11, being able to remain firm under vibration or external force, preventing the connection from loosening or malfunctioning; increasing the seismic resistance and durability of the overall device, and improving the performance of the product in a high - vibration environment.

[0040] Working principle: For a liquid - cooled charging stand leakage detection device provided by the present invention, since the first water - absorbing member 30 has a siphon drainage function for the coolant, it can quickly guide the leakage liquid to the detection area. The detection board 21 can quickly respond and form an electrical signal in case of a small amount of leakage, and can timely feedback the leakage information to the upper - layer control system (such as vehicle - mounted or charging platform) for early warning to avoid the expansion of accidents. By integrating the detection board 21 and the first water - absorbing member 30 into the storage box 10, the modular design is convenient for installation and replacement. Therefore, the technical problem that the liquid - cooled charging stand lacks a leakage detection device in the prior art is solved.

[0041] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; 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 invention.

Claims

1. A liquid leakage detection device for a liquid-cooled charging stand, the liquid leakage detection device for the liquid-cooled charging stand is installed inside the liquid-cooled charging stand, and is characterized in that, The liquid leakage detection device for the liquid-cooled charging stand includes a storage box (10). A detection component (20) and a first water absorption component (30) which are distributed in layers are installed in the storage box (10). The first water absorption component (30) is used for siphoning the coolant leaked in the liquid-cooled charging stand. The detection component (20) includes a detection board (21). The first water absorption component (30) is lapped with the detection board (21). The detection board (21) is used for forming a liquid leakage detection signal after contacting the leaked coolant. Two signal lead-out wires (22) are installed on the detection board (21). The signal lead-out wires (22) are used for transmitting the liquid leakage detection signal of the detection board (21).

2. The liquid leakage detection device for the liquid-cooled charging stand according to claim 1, characterized in that, The detection board (21) is a PCB printed board. The detection board (21) includes a substrate (211). A first detection layer (212) and a second detection layer (213) are arranged at intervals on the substrate (211). The first detection layer (212) and the second detection layer (213) are conducted through the coolant leaked in the liquid-cooled charging stand and generate a liquid leakage detection signal. The first detection layer (212) is electrically connected to one of the signal lead-out wires (22). The second detection layer (213) is electrically connected to the other signal lead-out wire (22).

3. The liquid leakage detection device for the liquid-cooled charging stand according to claim 2, characterized in that, The first detection layer (212) includes a plurality of first detection strips (2121) arranged in parallel. One ends of the plurality of first detection strips (2121) are all connected to a first connection strip (2122). The first connection strip (2122) is electrically connected to one of the signal lead-out wires (22). The second detection layer (213) includes a plurality of second detection strips (2131) arranged in parallel. One ends of the plurality of second detection strips (2131) are all connected to a second connection strip (2132). The second connection strip (2132) is electrically connected to the other signal lead-out wire (22). The first detection strips (2121) and the second detection strips (2131) are arranged at intervals alternately. The first detection strips (2121) and the first connection strip (2122) are both arranged at intervals with the second detection strips (2131) and the second connection strip (2132) to form a serpentine groove.

4. The liquid leakage detection device for a liquid-cooled charging stand according to any one of claims 1 to 3, characterized in that It further includes a second water absorption component (40) installed in the storage box (10). The second water absorption component (40) is pressed on the first water absorption component (30). The second water absorption component (40) is used for siphoning the coolant leaked in the liquid-cooled charging stand.

5. The liquid leakage detection device for the liquid-cooled charging stand according to claim 4, characterized in that, The storage box (10) includes a first storage shell (11), a folding connecting rib (12) and a second storage shell (13) which are connected in sequence. The detection board (21) is installed in the first storage shell (11). The second storage shell (13) is pressed against the second water absorption component (40). The first storage shell (11) and the second storage shell (13) are detachably connected. The first storage shell (11) is provided with a storage surrounding edge (111) with an integrally formed structure. The storage surrounding edge (111) fences the leaked liquid stored in the first storage shell (11).

6. The liquid leakage detection device for the liquid-cooled charging stand according to claim 5, characterized in that, The first storage case (11) is snap-fitted with the second storage case (13). A first bolt hole (112) is provided on the first storage case (11), and a second bolt hole (131) corresponding to the first bolt hole (112) is provided on the second storage case (13).

7. The liquid leakage detection device for the liquid-cooled charging stand according to claim 5 or 6, characterized in that, A first avoidance hole (113) and a second avoidance hole (114) are provided on the first storage case (11). The first avoidance hole (113) is used to avoid the connection pins of the detection board (21), and the second avoidance hole (114) is used to avoid the two signal lead-out wires (22).

8. The liquid leakage detection device for the liquid-cooled charging stand according to claim 6, characterized in that, A pre-installation hole (115) is provided on the first storage case (11), and a pre-installation spring buckle (14) corresponding to the pre-installation hole (115) is provided on the second storage case (13). After passing through the pre-installation hole (115), the pre-installation spring buckle (14) is snap-fitted with the first storage case (11).

9. The liquid leakage detection device for the liquid-cooled charging stand according to claim 8, wherein The pre-installation spring buckle (14) includes two relatively arranged buckle bodies (141). A clamping portion (142) is provided on each buckle body (141). A first guiding inclined surface (1411) is provided on the buckle body (141), and a second guiding inclined surface (1421) is provided on the clamping portion (142).

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