Charging pile liquid cooling module and charging pile

Abstract

The utility model provides a charging pile liquid cooling module and a charging pile, and relates to the field of heat exchange devices. The charging pile liquid cooling module comprises a liquid supply flow path and a pressure relief flow path. The liquid supply flow path is provided with an expansion kettle, a liquid supply module, a pipeline connecting piece and a heat exchanger. The liquid supply module is configured as a power element to drive the cooling medium to flow. And the pipeline connecting piece is configured to be connected with a circulating pipeline in a gun line of the charging pile, so that the circulating pipeline in the gun line of the charging pile and the liquid supply flow path form a circulating loop. One end of the pressure relief flow path communicates with the expansion kettle, the other end of the pressure relief flow path communicates with the liquid supply flow path, and the pressure relief flow path is provided with a safety valve. When the pressure in a circulation loop exceeds the pressure during normal operation, pressure relief can be performed, so that the problems of pipe explosion and damage to a liquid supply module can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of heat exchange equipment, and in particular to a charging pile liquid cooling module and a charging pile. Background Art

[0002] With the development of new energy vehicle technology and the increase in charging power requirements for new energy vehicles, liquid-cooled supercharging piles are being used in large quantities.

[0003] Existing liquid-cooled supercharging piles generally use a liquid cooling module to supply cooling medium to the circulation pipeline in the charging gun line to achieve cooling of the gun line and the gun head.

[0004] However, when heavy objects such as wheels press on the gun line, the circulation pipeline inside the gun line will be flattened, reducing the flow rate and flow velocity, or even blocking the diversion. In addition, when the viscosity of the low-temperature medium increases, the filter is blocked, and the user's quick connector is not properly connected and the circuit is broken, the pressure in the circulation loop will increase, which is prone to pipe bursting or water pump damage. Utility Model Content

[0005] The utility model aims to provide a charging pile liquid cooling module and a charging pile, which can release pressure when the pressure in the circulation loop exceeds the pressure during normal operation, thereby avoiding the problems of pipe explosion and liquid supply module damage.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides a charging pile liquid cooling module, including a liquid supply flow path and a pressure relief flow path;

[0008] The liquid supply flow path is provided with an expansion kettle, a liquid supply module, a pipeline connector and a heat exchanger;

[0009] The liquid supply module is configured to serve as a power element to drive the cooling medium to flow;

[0010] The pipeline connector is configured to connect the circulation pipeline in the gun line of the charging pile, so that the circulation pipeline in the gun line of the charging pile and the liquid supply flow path form a circulation loop;

[0011] One end of the pressure relief flow path is communicated with the expansion kettle, and the other end is communicated with the liquid supply flow path. The pressure relief flow path is provided with a safety valve.

[0012] In an optional embodiment, the liquid supply module is a water pump, the expansion kettle is provided with a liquid outlet, a liquid inlet and a pressure relief port, the heat exchanger has an inlet and an outlet, the outlet is connected to the liquid inlet through a pipeline, the liquid inlet end of the water pump is connected to the liquid outlet through a pipeline, the liquid outlet end of the water pump is connected to the pipeline connector, the pipeline connector is connected to the inlet through a pipeline, the inlet end of the safety valve is connected to the pipeline connector through a pipeline, and the outlet end of the safety valve is connected to the pressure relief port through a pipeline.

[0013] In an optional embodiment, the pipeline connector is provided with a liquid inlet channel, a liquid outlet channel, a first interface, a second interface, a third interface, a fourth interface and a fifth interface;

[0014] The first interface and the second interface are both in communication with the liquid inlet channel, the first interface is connected to the liquid outlet of the water pump through a pipeline, and the second interface is configured to connect to the liquid inlet of the circulation pipeline in the gun line of the charging pile;

[0015] The third interface and the fourth interface are both connected to the liquid outlet channel, the third interface is connected to the inlet through a pipeline, and the fourth interface is configured to connect to the liquid outlet end of the circulation pipeline in the gun line of the charging pile;

[0016] The fifth interface is communicated with the liquid inlet channel or the liquid outlet channel, and the safety valve is installed on the fifth interface.

[0017] In an optional embodiment, the fifth interface is communicated with the liquid inlet channel.

[0018] In an optional embodiment, the second interface and the fourth interface are arranged on the same side of the pipe connector and are staggered.

[0019] In an optional embodiment, the pressure relief flow path further includes a ball valve, which is installed at the pressure relief outlet and connected to the safety valve through a pipeline.

[0020] In an optional embodiment, the pressure relief flow path further includes a quick-connect connector;

[0021] The quick-connect connector is installed at the outlet of the ball valve, and one end of the pipeline is installed at the quick-connect connector.

[0022] In an alternative embodiment,

[0023] The charging pile liquid cooling module also includes a base and a side plate;

[0024] The side plate is mounted on the base, the heat exchanger is mounted on the base, and the expansion kettle, the water pump and the pipeline connector are all arranged on one side of the heat exchanger.

[0025] In an optional embodiment, the charging pile liquid cooling module further includes a temperature and pressure sensor and a temperature sensor;

[0026] The pipeline connector is provided with a sixth interface and a seventh interface, the sixth interface is communicated with the liquid inlet channel, and the seventh interface is communicated with the liquid outlet channel;

[0027] The temperature and pressure sensor is installed on the sixth interface, and the temperature sensor is installed on the seventh interface.

[0028] In a second aspect, the utility model provides a charging pile, including a charging gun and a charging pile liquid cooling module according to any one of the aforementioned embodiments;

[0029] A circulation pipeline is arranged in the gun line of the charging gun.

[0030] The inlet and outlet of the circulation pipeline are both connected to the pipeline connector.

[0031] The beneficial effects of the charging pile liquid cooling module and charging provided by the embodiment of the utility model are:

[0032] The present application sets up a pressure relief flow path and connects the pressure relief flow path with the liquid supply flow path. In this way, when the pressure of the circulation loop formed by the liquid supply flow path and the circulation pipeline exceeds a preset pressure, the safety valve in the pressure relief flow path will open, so that the fluid will flow back into the expansion kettle through the pressure relief flow path, thereby achieving pressure relief in the circulation loop and avoiding pipe burst or supply damage caused by excessive pressure in the circulation loop. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of a charging pile liquid cooling module provided in an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of the structure of the pipe connector of the charging pile liquid cooling module provided in the embodiment of the utility model;

[0036] Figure 3 A schematic diagram of the structure of the pipe connector of the charging pile liquid cooling module provided in the embodiment of the utility model;

[0037] Figure 4 A schematic cross-sectional view of a pipe connector of a charging pile liquid cooling module according to an embodiment of the utility model;

[0038] Figure 5 A schematic cross-sectional view of a pipe connector of a charging pile liquid cooling module according to an embodiment of the utility model;

[0039] Figure 6 This is a schematic diagram of the structure of the charging pile liquid cooling module provided in an embodiment of the utility model.

[0040] Icons: 100-charging pile liquid cooling module; 110-liquid supply flow path; 111-expansion kettle; 113-water pump; 115-pipeline connector; 117-heat exchanger; 119-liquid inlet channel; 121-liquid outlet channel; 123-first interface; 125-second interface; 127-third interface; 129-fourth interface; 131-fifth interface; 133-sixth interface; 135-seventh interface; 137-support plate; 150-pressure relief flow path; 151-safety valve; 153-ball valve; 155-quick plug connector; 157-pipeline; 171-base; 173-side panel; 175-support; 177-temperature and pressure sensor; 179-temperature sensor; 181-cooling fan. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Example

[0048] Please refer to Figure 1 The utility model provides a charging pile including a charging gun and a charging pile liquid cooling module 100. A circulation pipeline is arranged in the gun line of the charging gun. The charging pile liquid cooling module 100 is connected to the circulation pipeline.

[0049] Please refer to Figures 1 to 6In this embodiment, the charging pile liquid cooling module 100 includes a liquid supply flow path 110 and a pressure relief flow path 150. The liquid supply flow path 110 is provided with an expansion kettle 111, a liquid supply module, a pipeline connector 115 and a heat exchanger 117. Both ends of the circulation pipeline are connected to the pipeline connector 115 so that the circulation pipeline and the liquid supply flow path 110 form a circulation loop. The liquid supply module is configured as a power element to drive the cooling medium to flow. Under the action of the liquid supply module, the heat exchange medium in the expansion kettle 111 can flow into the circulation pipeline through the pipeline 157 connector. After heat exchange, the heat exchange medium flows back to the pipeline 157 connector and then enters the heat exchanger 117. After cooling, it flows back to the expansion kettle 111 to realize circulation. One end of the pressure relief flow path 150 is connected to the expansion kettle 111, and the other end is connected to the liquid supply flow path 110. The pressure relief flow path 150 is provided with a safety valve 151.

[0050] In this embodiment, a pressure relief circuit 150 is provided, and the pressure relief circuit 150 is connected to the liquid supply circuit 110. When the pressure of the circulation loop formed by the liquid supply circuit 110 and the circulation pipeline exceeds a preset pressure, the safety valve 151 in the pressure relief circuit 150 will open, allowing the fluid to flow back into the expansion kettle 111 through the pressure relief circuit 150, thereby achieving pressure relief of the circulation loop and avoiding pipe burst or damage to the water pump 113 due to excessive pressure in the circulation loop.

[0051] It should be noted that the safety valve 151 is an automatic valve used to protect the pipeline 157 system from damage caused by excessive pressure. Its working principle is based on the sensitive response to the internal pressure. When the system pressure exceeds the set safety limit, the safety valve 151 automatically opens to release excess pressure medium, thereby preventing the system from overpressure. When the pressure drops to a safe level, the safety valve 151 will automatically close to prevent the medium from continuing to lose. The safety valve 151 can be one of a spring-loaded safety valve 151, a pilot safety valve 151, and a pulse safety valve 151.

[0052] Please refer to Figures 1 to 6 Further, the liquid supply module is a water pump 113, the expansion kettle 111 is provided with a liquid outlet, a liquid inlet and a pressure relief port, the heat exchanger 117 has an inlet and an outlet, the outlet is connected to the liquid inlet through a pipeline, the liquid inlet end of the water pump 113 is connected to the liquid outlet through a pipeline, the liquid outlet end of the water pump 113 is connected to the pipeline connector 115, the pipeline connector 115 is connected to the inlet through a pipeline, the inlet end of the safety valve 151 is connected to the pipeline connector 115 through a pipeline, and the outlet end of the safety valve 151 is connected to the pressure relief port through a pipeline.

[0053] This embodiment is connected in the above manner, so that the layout of the pressure relief flow path 150 can be simpler.

[0054] Of course, in some other embodiments of the present application, the liquid supply module can also be a power element such as a compressor that can drive the heat exchange medium to achieve heat exchange. Secondly, the connection sequence between the components in the liquid supply flow path 110 can be adjusted accordingly as long as it can achieve the circulation of the cooling medium.

[0055] It should be noted that generally an expansion kettle has a kettle cover, and the kettle cover is provided with a pressure relief valve. When the pressure in the expansion kettle is greater than a preset pressure, the pressure relief valve will open to relieve the pressure.

[0056] In this embodiment, the pipeline connector 115 is provided with an inlet channel 119, an outlet channel 121, a first interface 123, a second interface 125, a third interface 127, a fourth interface 129 and a fifth interface 131. The first interface 123 and the second interface 125 are both connected to the inlet channel 119, the first interface 123 is connected to the outlet end of the water pump 113 through a pipeline, and the second interface 125 is connected to the inlet end of the circulation pipeline. The third interface 127 and the fourth interface 129 are both connected to the outlet channel 121, the third interface 127 is connected to the inlet through a pipeline, and the fourth interface 129 is connected to the outlet end of the circulation pipeline. The fifth interface 131 is connected to the inlet channel 119 or the outlet channel 121, and the safety valve 151 is installed on the fifth interface 131.

[0057] In this embodiment, an internal connection structure connected by a pipeline 157 is provided, so that the connection of the pipeline and the installation of the safety valve 151 can be more convenient.

[0058] Specifically, the fifth port 131 is in communication with the liquid inlet channel 119 .

[0059] Since the water pump 113 is connected to the liquid inlet channel 119, and the liquid flows to the circulation pipeline through the first interface 123, when the circulation pipeline is flattened, the continuous operation of the water pump 113 will cause the pressure between the water pump 113 and the flattened part of the circulation pipeline to be the maximum, and the fifth interface 131 will be connected to the liquid inlet channel 119, which can better relieve pressure and avoid pipe explosion and damage to the water pump 113.

[0060] In this embodiment, the second interface 125 and the fourth interface 129 are disposed on the same side of the pipe connector 115 and are staggered.

[0061] The second interface 125 and the fourth interface 129 are arranged on the same side, so as to facilitate the connection of the circulation pipeline. The staggered arrangement is convenient for avoiding interference between the two during the installation process, and can facilitate the miniaturization of the pipe 157 connector. Secondly, the staggered arrangement allows the circulation pipeline to be connected from the top, bottom, left, right and front, which is more versatile.

[0062] Please refer to Figures 1 to 6In this embodiment, the pressure relief flow path 150 also includes a ball valve 153 , which is installed at the pressure relief outlet and connected to the safety valve 151 through a pipeline 157 .

[0063] The present application sets a ball valve 153 in the pressure relief circuit. When drainage is required, it is only necessary to remove the pipe 157 connected to the rear end of the ball valve 153. This can avoid setting up a drainage flow path in the expansion kettle 111.

[0064] When the ball valve 153 is opened during normal use, the pressure relief path 150 can achieve pressure relief. When discharging liquid, the ball valve 153 is closed first, the pipeline 157 is removed, and the ball valve 153 is opened again to achieve discharging liquid.

[0065] Furthermore, in order to facilitate the disassembly and assembly of the pipe 157, the pressure relief flow path 150 further includes a quick-insert connector 155. The quick-insert connector 155 is installed at the outlet of the ball valve 153, and one end of the pipe 157 is installed at the quick-insert connector 155. In this way, the quick-insert connector 155 can be used to facilitate the disassembly and assembly of the pipe 157. It should be noted that the quick-insert connector 155 and the ball valve 153 are matched, and the two can be installed by a snap-on method.

[0066] Please refer to Figures 1 to 6 In this embodiment, the charging pile liquid cooling module 100 further includes a base 171, a side plate 173 and a support member 175. The side plate 173 is mounted on the base 171, the heat exchanger 117 is mounted on the side plate 173, the expansion kettle 111 and the water pump 113 are both arranged on one side of the heat exchanger 117, and the water pump 113 is located below the expansion kettle 111. The pipe connector 115 is mounted on the base 171 and is located below the water pump 113. A support sheet 137 is provided on the pipe connector 115. One end of the support member 175 is fixedly connected to the support sheet 137, and the other end is fixedly connected to the water pump 113.

[0067] This can make the structure of the hydraulic energy module more compact and facilitate the installation and fixation of the water pump 113.

[0068] Please refer to Figures 1 to 6 In this embodiment, the charging pile liquid cooling module 100 further includes a temperature and pressure sensor 177 and a temperature sensor 179. The pipeline connector 115 is provided with a sixth interface 133 and a seventh interface 135. The sixth interface 133 is connected to the liquid inlet channel 119, and the seventh interface 135 is connected to the liquid outlet channel 121. The temperature and pressure sensor 177 is installed on the sixth interface 133, and the temperature sensor 179 is installed on the seventh interface 135.

[0069] In this embodiment, the temperature and pressure sensor 177 and the temperature sensor 179 are installed on the pipe 157 connector, so as to detect the inlet temperature and the outlet temperature of the liquid respectively, and make the installation more convenient.

[0070] Secondly, in this embodiment, the charging liquid cooling module further includes a cooling fan 181 , and the cooling fan 181 is installed on the heat exchanger 117 through an air guide cover to achieve heat dissipation for the heat exchanger 117 .

[0071] In summary, in this embodiment, a pressure relief circuit 150 is provided and connected with the liquid cooling circuit. When the pressure of the circulation loop formed by the liquid supply circuit 110 and the circulation pipeline exceeds a preset pressure, the safety valve 151 in the pressure relief circuit 150 will open, so that the fluid can flow back into the expansion kettle 111 through the pressure relief circuit 150, thereby achieving pressure relief of the circulation loop and avoiding pipe burst or damage to the water pump 113 due to excessive pressure in the circulation loop.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A charging pile liquid cooling module, characterized in that: It comprises a liquid supply flow path (110) and a pressure relief flow path (150); The liquid supply flow path (110) is provided with an expansion kettle (111), a liquid supply module, a pipeline connector (115) and a heat exchanger (117); The liquid supply module is configured as a power element to drive the cooling medium to flow; The pipeline connector (115) is configured to connect the circulation pipeline in the gun line of the charging pile, so that the circulation pipeline in the gun line of the charging pile and the liquid supply flow path (110) form a circulation loop; One end of the pressure relief flow path (150) is in communication with the expansion kettle (111), and the other end is in communication with the liquid supply flow path (110). The pressure relief flow path (150) is provided with a safety valve (151).

2. The charging pile liquid cooling module according to claim 1, characterized in that: The liquid supply module is a water pump (113); the expansion kettle (111) is provided with a liquid outlet, a liquid inlet and a pressure relief port; the heat exchanger (117) has an inlet and an outlet; the outlet is connected to the liquid inlet via a pipeline; the liquid inlet end of the water pump (113) is connected to the liquid outlet via a pipeline; the liquid outlet end of the water pump (113) is connected to the pipeline connector (115); the pipeline connector (115) is connected to the inlet via a pipeline; the inlet end of the safety valve (151) is connected to the pipeline connector (115) via a pipeline; and the outlet end of the safety valve (151) is connected to the pressure relief port via a pipeline.

3. The charging pile liquid cooling module according to claim 2, characterized in that: The pipeline connector (115) is provided with a liquid inlet channel (119), a liquid outlet channel (121), a first interface (123), a second interface (125), a third interface (127), a fourth interface (129) and a fifth interface (131); The first interface (123) and the second interface (125) are both in communication with the liquid inlet channel (119); the first interface (123) is connected to the liquid outlet end of the water pump (113) via a pipeline, and the second interface (125) is configured to be connected to the liquid inlet end of the circulation pipeline in the gun line of the charging pile; The third interface (127) and the fourth interface (129) are both in communication with the liquid outlet channel (121), the third interface (127) is in communication with the inlet via a pipeline, and the fourth interface (129) is configured to be connected to the liquid outlet end of the circulation pipeline in the gun line of the charging pile; The fifth interface (131) is in communication with the liquid inlet channel (119) or the liquid outlet channel (121), and the safety valve (151) is installed on the fifth interface (131).

4. The charging pile liquid cooling module according to claim 3, characterized in that: The fifth interface (131) is in communication with the liquid inlet channel (119).

5. The charging pile liquid cooling module according to claim 4, characterized in that: The second interface (125) and the fourth interface (129) are arranged on the same side of the pipeline connector (115) and are staggered.

6. The charging pile liquid cooling module according to any one of claims 2 to 5, characterized in that: The pressure relief flow path (150) further comprises a ball valve (153), wherein the ball valve (153) is installed at the pressure relief outlet and connected to the safety valve (151) via a pipeline (157).

7. The charging pile liquid cooling module according to claim 6, characterized in that: The pressure relief flow path (150) further includes a quick-connect connector (155); The quick-connect connector (155) is installed at the outlet of the ball valve (153), and one end of the pipeline (157) is installed at the quick-connect connector (155).

8. The charging pile liquid cooling module according to any one of claims 2 to 5, characterized in that: The charging pile liquid cooling module also includes a base (171) and a side plate (173); The side plate (173) is mounted on the base (171), the heat exchanger (117) is mounted on the base (171), and the expansion kettle (111), the water pump (113) and the pipe connector (115) are all arranged on one side of the heat exchanger (117).

9. The charging pile liquid cooling module according to any one of claims 3 to 5, characterized in that: The charging pile liquid cooling module also includes a temperature and pressure sensor (177) and a temperature sensor (179); The pipeline connector (115) is provided with a sixth interface (133) and a seventh interface (135), the sixth interface (133) is communicated with the liquid inlet channel (119), and the seventh interface (135) is communicated with the liquid outlet channel; The temperature and pressure sensor (177) is installed on the sixth interface (133), and the temperature sensor (179) is installed on the seventh interface (135).

10. A charging pile, characterized in that: A charging pile liquid cooling module comprising a charging gun and any one of claims 1 to 9; A circulation pipeline is provided in the gun line of the charging gun; The inlet and outlet of the circulation pipeline are both connected to the pipeline connector (115).

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