An explosion-proof detection device for liquid-cooled cables

Abstract

The utility model belongs to cable detection equipment application technical field, concretely belongs to a kind of liquid cooling cable's explosion-proof detection equipment, including detection box, gas storage device and air inlet device, the air inlet device, gas storage device and detection box are connected through gas pipe through between adjacent, the upper portion one side end of detection box is provided with gas pipe interface, the gas pipe interface is penetrated in the inside of detection box, the lower portion of gas pipe interface is connected with liquid cooling cable, the liquid cooling cable is fixedly connected by nut and gas pipe interface, the inside top of detection box is provided with multiple fixed bands, the surface of liquid cooling cable is wrapped around by the fixed band, for the fixation of liquid cooling cable.

Description

Technical Field

[0001] This utility model belongs to the field of cable testing equipment application technology, specifically to an explosion-proof testing device for liquid-cooled cables. Background Technology

[0002] With the rapid development of the new energy vehicle industry and the widespread adoption of various fast charging stations, liquid-cooled fast charging stations are gradually becoming the mainstream choice for fast charging technology development in order to improve charging efficiency. These cables have a smaller overall diameter and are lighter than conventional AC charging cables, offering greater ease of use. However, in the development of existing liquid-cooled charging stations, due to differences in the technical processes of various manufacturers, factory testing is required for charging cables of different specifications to check their internal pressure resistance and temperature resistance. Existing testing equipment is generally complex, occupies a large space, has high site requirements, and is cumbersome to operate, hindering the improvement of testing efficiency. Utility Model Content

[0003] To address the problems mentioned in the background section, an explosion-proof testing device for liquid-cooled cables is proposed, comprising a testing chamber, a gas storage device, and a gas inlet device. The gas inlet device, the gas storage device, and the testing chamber are connected adjacent to each other via gas pipes. A gas pipe interface is provided on one side of the upper part of the testing chamber, and the gas pipe interface extends through the interior of the testing chamber. A liquid-cooled cable is connected to the lower part of the gas pipe interface, and the liquid-cooled cable is fixedly connected to the gas pipe interface by a nut. Multiple fixing straps are provided on the top of the interior of the testing chamber, and the fixing straps wrap around the surface of the liquid-cooled cable for fixing the liquid-cooled cable.

[0004] Preferably, the lower surface of the test chamber 1 is provided with a storage frame, which is hollow, and the upper surface of the storage frame is provided with a collection frame, which is used to collect the coolant generated by the liquid-cooled cable during the withstand voltage test.

[0005] Preferably, the lower part of the storage frame is provided with multiple heating chambers for heating and drying the entire interior of the testing chamber. Multiple limiting grooves are provided on the left and right sides of the storage frame for fixing the two sides of the storage frame. By selecting limiting grooves of different heights, the storage frame can be positioned at different heights inside the testing chamber.

[0006] Preferably, a buffer plate is provided on the lower surface of the heating chamber, and a heat insulation plate is provided abutting the lower surface of the buffer plate.

[0007] Preferably, the air intake device has an air intake nozzle on one side and an air pipe connected to the other side of the air intake nozzle. The air pipe is connected to the filter plate. The middle partition of the filter plate is in the shape of an inverted V, which is used to filter and adsorb particulate matter carried by external gas. An air intake control valve is provided on the upper part of the filter plate, which is used to control the opening and closing of the filter plate.

[0008] Preferably, the gas storage device includes a gas storage tank and a gas tank support. A pressure control valve is provided in the middle of the gas storage tank. Gas pipes are connected to both the front and rear ends of the pressure control valve. A booster is provided on the upper part of the gas storage tank. The booster is used to control the pressure of the gas passing through the booster. The booster is fixed on the top of the gas storage tank.

[0009] Preferably, the rear of the booster is connected to a dehumidification chamber, which includes a one-way valve plate and a water absorption plate. The one-way valve plate is located in front of the water absorption plate and is used to prevent the gas entering the dehumidification chamber from flowing back to the booster. The water absorption plate is arranged longitudinally in parallel and is used to absorb moisture from the gas coming from the one-way valve plate. A water storage chamber is provided at the bottom of the water absorption plate to collect the moisture flowing onto the water absorption plate.

[0010] Preferably, a radiator is provided on the upper side of the outer side of the testing chamber, and the radiator is provided with multiple heat dissipation holes for internal heat dissipation of the testing chamber. An isolation door is also provided on the outside of the testing chamber, and an observation window is provided in the middle of the isolation door for easy observation of the internal condition of the testing chamber. A door handle is also provided on the outside of the isolation door, and a display screen is provided on the upper part of the door handle to display the parameter information of the testing chamber. A control console and a power regulator are also provided below the display screen. The control console is provided with multiple switches for controlling the opening and closing of the testing chamber, and the power regulator is used to control the heating power of the testing chamber.

[0011] Preferably, the fixing band is further provided with fixing bolts and fixing nuts. The fixing bolts pass through the through holes in the fixing band and are fixedly connected with the fixing nuts. The fixing bolts and the fixing band form a gap for placing liquid-cooled cables.

[0012] Preferably, the bottom of the testing box is provided with a support base, and the support base is provided with a height adjustment bolt, which is used to fix the bottom of the testing box at different height positions.

[0013] Compared with existing technologies, this utility model provides an explosion-proof testing device for liquid-cooled cables, which has the following advantages: 1. Through modular integrated design, the overall volume of the testing device is significantly reduced, making it easier to transport and assemble, and improving the adaptability of the testing device. 2. By setting a fixing strap inside the testing box to fix the liquid-cooled cable, the fixing and disassembly process of the liquid-cooled cable to be tested becomes simple and convenient, adapting to the testing needs of cables with different diameters and lengths. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a plan view of the overall embodiment of this utility model.

[0016] Figure 2 This is a side perspective view of an embodiment of the present utility model.

[0017] Figure 3 for Figure 2 The display image after adding the collection box.

[0018] Figure 4 This is a three-dimensional view of the fixing strap in an embodiment of this utility model.

[0019] Figure 5 for Figure 1 A magnified view of a portion of the image from direction A.

[0020] Figure 6 for Figure 3 A magnified view of the area in direction B.

[0021] Figure 7 for Figure 1 A magnified view of the C-axis.

[0022] Figure Labels

[0023] 1-Testing box; 101-Isolation door; 1011-Observation window; 102-Door handle; 103-Display screen; 104-Radiator; 105-Control console; 106-Support base; 1061-Height adjustment bolt; 107-Air pipe interface; 108-Power regulator; 109-Liquid cooling cable; 110-Fixing strap; 1101-Fixing bolt; 1102-Fixing nut; 111-Buffer plate; 112-Insulation plate; 113-Storage area Frame; 1131-Limiting groove; 114-Heating chamber; 115-Heat dissipation hole; 116-Collection frame; 2-Gas storage device; 201-Gas storage tank; 202-Gas tank bracket; 203-Pressure control valve; 204-Pressure booster; 205-Dehumidification chamber; 2051-One-way valve plate; 2052-Water absorption plate; 2053-Water storage chamber; 3-Air intake device; 301-Air pipe; 302-Air inlet nozzle; 303-Filter plate; 304-Air intake control valve; Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] like Figure 1-7As shown, an explosion-proof testing device for liquid-cooled cables is characterized by comprising a testing chamber 1, an air storage device 2, and an air inlet device 3. The air inlet device 3, the air storage device 2, and the testing chamber 1 are connected adjacent to each other by an air pipe 301. An air pipe interface 107 is provided on one side of the upper part of the testing chamber 1, and the air pipe interface 107 extends through the interior of the testing chamber 1. A liquid-cooled cable 109 is connected to the lower part of the air pipe interface 107, and the liquid-cooled cable 109 is fixedly connected to the air pipe interface 107 by a nut. Multiple fixing straps 110 are provided on the top of the interior of the testing chamber 1, and the fixing straps 110 wrap around the surface of the liquid-cooled cable 109 for fixing the liquid-cooled cable 109. A storage frame 113 is provided on the lower surface of the interior of the testing chamber 1. The storage frame 113 is hollow, and a collection frame 116 is provided on the upper surface of the storage frame 113. The collection frame 116 is used to collect the coolant generated by the liquid-cooled cable 109 during the withstand pressure test. The lower part of the storage frame 113 is provided with multiple heating chambers 114 for heating and drying the entire interior of the testing chamber. Multiple limiting grooves 1131 are provided on the left and right sides of the storage frame 113 for fixing the sides of the storage frame 113. By selecting limiting grooves 1131 of different heights, the storage frame 113 can be positioned at different heights inside the testing chamber 1. A buffer plate 111 is provided on the lower surface of the heating chamber 114, and a heat insulation plate 112 is abutted against the lower surface of the buffer plate 111. The air intake device 3 has an air inlet 302 on one side and an air pipe 301 connected to the other side. The air pipe 301 is connected to a filter plate 303. The middle partition of the filter plate 303 is in the shape of an inverted V, used to filter and adsorb particulate matter carried by external gas. An air intake control valve 304 is provided on the upper part of the filter plate 303, used to control the opening and closing of the filter plate 303. The gas storage device 2 includes a gas storage tank 201 and a gas tank support 202. A pressure control valve 203 is provided in the middle of the gas storage tank 201. The front and rear ends of the pressure control valve 203 are connected to air pipes 301. A booster 204 is provided on the upper part of the gas storage tank 201, used to pressurize and control the gas passing through the booster 204. The booster 204 is fixed above the gas storage tank 204. The rear of the booster 204 is connected to a dehumidification chamber 205. The dehumidification chamber 205 includes a one-way valve plate 2051 and a water absorption plate 2052. The one-way valve plate 2051 is located in front of the water absorption plate 2052. The one-way valve plate 2051 is used to prevent the gas entering the dehumidification chamber 205 from flowing back to the booster 204. The water absorption plate 2052 is arranged longitudinally in parallel and is used to absorb the moisture from the gas from the one-way valve plate 2051. A water storage chamber 2053 is provided at the lower part of the water absorption plate 2052. The water storage chamber 2053 is used to collect the moisture flowing on the water absorption plate 2052.

[0030] like Figure 1 and Figure 3 As shown, a radiator 104 is provided on the upper side of the outer side of the testing chamber 1. The radiator 104 has multiple heat dissipation holes for internal heat dissipation of the testing chamber 1. An isolation door 101 is also provided on the outer side of the testing chamber 1. An observation window 1011 is provided in the middle of the isolation door 101 for easy observation of the internal condition of the testing chamber 1. A door handle 102 is also provided on the outer side of the isolation door 101. A display screen 103 is provided on the upper part of one side of the door handle 102 for displaying the parameter information inside the testing chamber 1. A control console 105 and a power regulator 108 are also provided at the lower part of the display screen 103. The control console 105 has multiple switches for controlling the opening and closing of the testing chamber 1. The power regulator 108 is used to control the heating power of the testing chamber 1.

[0031] like Figure 4 As shown, the fixing band 110 is also provided with fixing bolts 1101 and fixing nuts 1102. The fixing bolts 1101 pass through the through holes in the fixing band 110 and are fixedly connected to the fixing bolts 1101 by fixing nuts 1102. The fixing bolts 1101 and the fixing band 110 form a gap for placing the liquid cooling cable 109.

[0032] like Figure 3 and Figure 6 As shown, a support base 106 is provided at the bottom of the testing box 1, and a height adjustment bolt 1061 is provided inside the support base 106. The height adjustment bolt 1061 is used to fix the bottom of the testing box 1 at different height positions.

[0033] Working principle description: In the explosion-proof testing equipment using this type of liquid-cooled cable, the inside of the liquid-cooled cable needs to be filled with coolant. The open end of the liquid-cooled cable 109 is connected to the gas pipe interface 107 and fixed by tightening bolts. The fixing strap 110 is wrapped around the liquid-cooled cable 109 so that the liquid-cooled cable 109 can be suspended normally. The tightness is adjusted by the fixing bolts 1101 and fixing nuts 1102 on the fixing strap 110 so that the liquid-cooled cable 109 can be fixed and suspended. The intake control valve 304 is opened to fill the intake nozzle 302 with gas. The intake gas is filtered and impurities are removed by the filter plate 303. After passing through the filter plate 303, the gas flows along the air pipe 301 to the booster 204 for pressurization and transmission to the one-way valve plate 2051. Then, it flows through the one-way valve plate 2051 to the dehumidification chamber 205. The water absorption plate 2052 absorbs the moisture carried by the gas. The gas is then connected to the liquid-cooled cable 109 through the air pipe interface 107. The temperature inside the test chamber 1 is raised to the experimental temperature by operating the control console 105 and the power regulator 108. The intake pressure of the air pipe is adjusted by the intake control valve 304. This sets the experimental conditions for conducting an explosion-proof limit test on the liquid-cooled cable. The temperature status data is recorded on the display screen 103 for easy review.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An explosion-proof testing device for liquid-cooled cables, characterized in that: The device includes a testing chamber, a gas storage device, and a gas inlet device. The gas inlet device, the gas storage device, and the testing chamber are connected by a gas pipe. A gas pipe interface is provided on one side of the upper part of the testing chamber. The gas pipe interface extends through the interior of the testing chamber. A liquid-cooled cable is connected to the lower part of the gas pipe interface. The liquid-cooled cable is fixedly connected to the gas pipe interface by a nut. Multiple fixing straps are provided on the top of the interior of the testing chamber. The fixing straps wrap around the surface of the liquid-cooled cable for fixing the liquid-cooled cable.

2. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: The lower surface inside the testing chamber is provided with a storage frame, which is hollow. The upper surface of the storage frame is provided with a collection frame, which is used to collect the coolant generated by the liquid-cooled cable during the withstand voltage test.

3. The explosion-proof testing equipment for liquid-cooled cables as described in claim 2, characterized in that: The lower part of the storage frame is provided with multiple heating chambers for heating and drying the entire interior of the testing box. Multiple limiting grooves are provided on the left and right sides of the storage frame for fixing the two sides of the storage frame. By selecting limiting grooves of different heights, the storage frame can be positioned at different heights inside the testing box.

4. The explosion-proof testing equipment for liquid-cooled cables as described in claim 3, characterized in that: A buffer plate is provided on the lower surface of the heating chamber, and a heat insulation plate is provided on the lower surface of the buffer plate.

5. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: An air inlet is provided on one side of the air intake device, and an air pipe is connected to the other side of the air inlet. The air pipe is connected to the filter plate. The middle partition of the filter plate is in the shape of an inverted V, which is used to filter and adsorb particulate matter carried by external gas. An air intake control valve is provided on the upper part of the filter plate, which is used to control the opening and closing of the filter plate.

6. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: The gas storage device includes a gas storage tank and a gas tank support. A gas pressure control valve is provided in the middle of the gas storage tank. Gas pipes are connected to both the front and rear ends of the gas pressure control valve. A booster is provided on the upper part of the gas storage tank. The booster is used to control the pressure of the gas passing through the booster. The booster is fixed on the top of the gas storage tank.

7. The explosion-proof testing equipment for liquid-cooled cables as described in claim 6, characterized in that: The rear of the booster is connected to a dehumidification chamber, which includes a one-way valve plate and a water absorption plate. The one-way valve plate is located in front of the water absorption plate and is used to prevent the gas entering the dehumidification chamber from flowing back to the booster. The water absorption plate is arranged in parallel longitudinally and is used to absorb moisture from the gas coming from the one-way valve plate. A water storage chamber is provided at the bottom of the water absorption plate to collect the moisture flowing onto the water absorption plate.

8. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: A radiator with multiple ventilation holes is installed on the upper exterior of the testing chamber for internal heat dissipation. An isolation door with an observation window in the center allows for observation of the chamber's interior. A door handle is located on the outside of the door, with a display screen on one side displaying internal parameters. A control panel and power regulator are located below the display screen. The control panel has multiple switches for opening and closing the testing chamber, and the power regulator controls the heating power of the chamber.

9. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: The fixing band is also provided with fixing bolts and fixing nuts. The fixing bolts pass through the through holes in the fixing band and are fixedly connected with the fixing nuts. The fixing bolts and the fixing band form a gap for placing liquid-cooled cables.

10. The explosion-proof testing equipment for liquid-cooled cables as described in claim 1, characterized in that: The bottom of the testing box is provided with a support base, and the support base is provided with a height adjustment bolt, which is used to fix the bottom of the testing box at different height positions.

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