Oil-cooling liquid-cooling system and charging equipment

Abstract

The utility model discloses an oil cooling liquid cooling system and charging equipment, and relates to the technical field of charging cooling equipment, a shell of the oil cooling liquid cooling system is provided with an installation cavity, an air inlet and an air outlet, a heat dissipation plate of a cooling structure is arranged corresponding to the air outlet, a cooling flow channel is arranged in the heat dissipation plate, and a fan assembly comprises at least two fans arranged side by side. The at least two fans are arranged corresponding to the air inlet and are opposite to the heat dissipation plate at intervals, the oil storage structure is provided with an oil storage cavity communicated with the cooling flow channel, the liquid inlet module is provided with a liquid inlet flow channel communicated with the oil storage cavity, the liquid return module and the liquid inlet module are arranged at intervals, and the liquid return module is provided with a liquid return flow channel communicated with the cooling flow channel; the two ends of a cooling channel of the charging gun are used for communicating with the liquid inlet flow channel and the liquid return flow channel correspondingly, so that the cooling channel, the liquid return flow channel, the cooling flow channel, the oil storage cavity and the liquid inlet flow channel form a cooling liquid channel for circulation of a cooling medium. The oil-cooling and liquid-cooling system aims to reduce the temperature rise of the high-power charging gun.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging cooling equipment technical field, especially relate to a kind of oil cooling liquid cooling system and the charging equipment of application this oil cooling liquid cooling system. BACKGROUND

[0002] With the development of new energy vehicles, the market share of electric vehicles is increasing, and the demand in the domestic market will continue to rise. Under this background, the efficiency of charging is more and more widely concerned by people, and the attention of high-power charging equipment in the market is increasing.

[0003] In the related art, the large current of fast charging equipment can quickly increase the temperature of the gun line of the charging gun. The wire diameter requirement of the charging equipment is getting thinner and thinner, and the charging current is getting higher and higher. The market demand of the high-power liquid cooling system matched with it will also continue to rise. The existing high-power liquid cooling system has the problems of poor cooling efficiency, large volume and high noise, which cannot meet the market demand. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide an oil cooling liquid cooling system and a charging device, which aims to provide an oil cooling liquid cooling system that effectively improves the cooling efficiency. The oil cooling liquid cooling system not only improves the cooling efficiency, but also reduces the overall volume and noise, so that the oil cooling liquid cooling system effectively reduces the temperature rise of the high-power charging gun and improves the service life and charging efficiency of the charging gun.

[0005] To achieve the above purpose, the utility model provides an oil cooling liquid cooling system for cooling charging gun, the charging gun is equipped with cooling channel, the oil cooling liquid cooling system includes:

[0006] The shell is provided with a mounting cavity, an air inlet and an air outlet communicating with the mounting cavity;

[0007] The cooling structure includes a heat sink and a fan assembly arranged in the mounting cavity, the heat sink is arranged corresponding to the air outlet, the heat sink is provided with a cooling flow channel, the fan assembly includes at least two fans arranged side by side, at least two fans are arranged corresponding to the air inlet, and are arranged opposite to and spaced from the heat sink;

[0008] The oil storage structure is arranged in the shell, and the oil storage structure is provided with an oil storage cavity communicating with the cooling flow channel, and the oil storage cavity is used for storing cooling medium;

[0009] The liquid inlet module is arranged in the shell, and the liquid inlet module is provided with a liquid inlet flow channel communicating with the oil storage cavity; and

[0010] A return liquid module is arranged in the shell and spaced apart from the inlet liquid module. The return liquid module is provided with a return liquid flow channel in communication with the cooling flow channel.

[0011] The two ends of the cooling channel are respectively in communication with the inlet liquid flow channel and the return liquid flow channel, so that the cooling channel, the return liquid flow channel, the cooling flow channel, the oil storage cavity and the inlet liquid flow channel form a cooling liquid channel for circulating the cooling medium.

[0012] In an embodiment, at least two of the fans are arranged side by side along the length direction of the heat dissipation plate.

[0013] The distance between the fan assembly and the heat dissipation plate is 0.3d.

[0014] In an embodiment, the heat dissipation plate is a multi-hole organ pipe structure.

[0015] The thickness of the heat dissipation plate is 30cm.

[0016] The cooling medium is dimethyl silicone oil.

[0017] In an embodiment, the oil cooling liquid cooling system further comprises a pipeline structure arranged in the mounting cavity, the pipeline structure comprising:

[0018] A first pipeline, the two ends of the first pipeline being in communication with the oil storage cavity and the inlet liquid flow channel, respectively;

[0019] A second pipeline, the two ends of the second pipeline being in communication with the cooling flow channel and the return liquid flow channel, respectively; and

[0020] A third pipeline, the two ends of the third pipeline being in communication with the cooling flow channel and the oil storage cavity, respectively.

[0021] In an embodiment, the oil storage structure comprises:

[0022] An oil storage tank is arranged on the outer wall of the shell, the oil storage tank is provided with the oil storage cavity, and the end of the third pipeline away from the cooling flow channel penetrates through the shell and is connected with the oil storage tank; and

[0023] An oil pump is arranged on the outer wall of the shell, the oil pump is in communication with the oil storage cavity through an oil outlet pipe, and the oil pump is in communication with the inlet liquid flow channel through the first pipeline.

[0024] In an embodiment, the oil storage structure further comprises a liquid level meter and a liquid level sensor, both of which are arranged in the oil storage tank and used for detecting the liquid level of the oil storage tank.

[0025] And / or, a first filter is arranged at the connection between the oil pump and the first pipeline.

[0026] And / or, a second filter is arranged at the connection between the third pipeline and the oil storage tank.

[0027] And / or, the oil storage tank is further provided with a liquid discharge port communicating with the oil storage cavity.

[0028] In an embodiment, the shell comprises a bottom plate, a front shell and a rear cover arranged on the bottom plate, the front shell and the rear cover are connected and enclose the mounting cavity with the bottom plate, the front shell is provided with the air outlet, the rear cover is provided with the air inlet, and the fan assembly is mounted at the air inlet.

[0029] In an embodiment, the liquid inlet module comprises a liquid inlet block, a first temperature detection element and a first pressure detection element, the liquid inlet block is arranged in the shell, the liquid inlet block is provided with the liquid inlet flow channel, the first temperature detection element is arranged in the liquid inlet block and used for detecting the temperature of the cooling medium in the liquid inlet flow channel, and the first pressure detection element is arranged in the liquid inlet block and used for detecting the pressure in the liquid inlet flow channel.

[0030] And / or, the liquid return module comprises a liquid return block, a second temperature detection element and a second pressure detection element, the liquid return block is arranged in the shell, the liquid return block is provided with the liquid return flow channel, the second temperature detection element is arranged in the liquid return block and used for detecting the temperature of the cooling medium in the liquid return flow channel, and the second pressure detection element is arranged in the liquid return block and used for detecting the pressure in the liquid return flow channel.

[0031] In an embodiment, the shell is further provided with a mounting hole communicating with the mounting cavity, and the oil-cooled liquid cooling system further comprises a control structure arranged in the mounting hole, and the control structure is electrically connected with the oil storage structure, the cooling structure, the liquid inlet module and the liquid return module.

[0032] The utility model further provides a kind of charging equipment, and the charging equipment includes:

[0033] Charging gun, cooling channel is arranged in the charging gun;And

[0034] The oil-cooled liquid cooling system described above, the two ends of the cooling channel are communicated with the liquid inlet flow channel and the liquid return flow channel of the oil-cooled liquid cooling system respectively.

[0035] This utility model's oil-cooling / liquid-cooling system utilizes an installation cavity within the housing. The heat sink and fan assembly of the cooling structure are housed within this cavity, effectively protecting the cooling structure while improving aesthetics. An air inlet and outlet are connected to the installation cavity on the housing, aligning the heat sink with the outlet. The heat sink contains cooling channels, and the fan assembly comprises at least two fans arranged side-by-side, each corresponding to the air inlet and positioned opposite and spaced from the heat sink. This allows at least two fans to dissipate heat from the heat sink, improving the cooling efficiency of the cooling medium within the cooling channels. Furthermore, the side-by-side arrangement of the fans ensures sufficient cooling airflow while effectively reducing the distance between the fan assembly and the heat sink. This reduces the overall size and noise of the oil-cooled / liquid-cooled system. Simultaneously, by housing the oil storage structure, inlet module, and return module within the casing, the oil storage chamber of the oil storage structure stores the cooling medium. The oil storage chamber is connected to the cooling channel and the inlet channel of the inlet module, and the return channel of the return module is connected to the cooling channel. Thus, both ends of the charging gun's cooling channel are connected to the inlet and return channels respectively. This creates a cold liquid channel for cooling medium circulation, where the cooling medium circulates through the oil-cooled / liquid-cooled system. The cooling medium's temperature rise is reduced when it passes through the charging gun's cooling channel, and it is cooled when it passes through the cooling channel, thus achieving the recycling of the cooling medium. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 A schematic diagram of an embodiment of the oil-cooling / liquid-cooling system provided by this utility model;

[0038] Figure 2 This is a schematic diagram of the structure of an embodiment of the oil-cooled / liquid-cooled system provided by this utility model from another perspective;

[0039] Figure 3 An exploded view of an embodiment of the oil-cooled / liquid-cooled system provided by this utility model;

[0040] Figure 4 This is a schematic diagram of the structure of an embodiment of the charging device provided by this utility model.

[0041] Brief Description of the Drawings

[0042] 100, oil cooling liquid cooling system; 1, shell; 11, bottom plate; 12, front shell; 121, air outlet; 122, mounting hole; 13, rear cover; 131, air inlet; 2, cooling structure; 21, heat dissipation plate; 22, fan assembly; 221, fan; 3, oil storage structure; 31, oil storage tank; 311, drain; 32, oil pump; 33, oil outlet pipe; 34, liquid level meter; 35, liquid level sensor; 36, first filter; 37, second filter; 4, liquid inlet module; 41, liquid inlet block; 411, liquid inlet flow channel; 42, first temperature detection part; 43, first pressure detection part; 5, liquid return module; 51, liquid return block; 511, liquid return flow channel; 52, second temperature detection part; 53, second pressure detection part; 6, pipeline structure; 61, first pipeline; 62, second pipeline; 63, third pipeline; 7, control structure; 800, charging gun; 900, charging device.

[0043] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0045] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0046] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are met at the same time.

[0047] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0048] With the development of new energy vehicles, the market share of electric vehicles is increasing, and the demand in the domestic market will continue to rise. Under this background, the efficiency of charging is more and more widely concerned, and the attention of high-power charging equipment in the market is increasing.

[0049] In the related art, the large current of the fast charging equipment can quickly increase the temperature of the gun line of the charging gun, and the wire diameter requirement of the charging equipment is getting thinner and thinner, the charging current is getting higher and higher, and the market demand of the high-power liquid cooling system matched with it will also continue to increase. In the existing high-power liquid cooling system, a single fan with large diameter is usually used as a air supply structure, in order to ensure the air supply amount, the distance between the fan and the heat dissipation structure is large, thereby increasing the overall volume and noise of the liquid cooling system. At the same time, the air supply amount of a single fan is limited, which leads to poor cooling efficiency and other problems, so that the existing high-power liquid cooling system has the problems of poor cooling efficiency, large volume and high noise, which cannot meet the market demand.

[0050] Based on the above ideas and problems, the present application provides an oil-cooled liquid cooling system 100. It can be understood that the oil-cooled liquid cooling system 100 is applied to the charging equipment 900, especially for cooling the charging gun 800. In the present embodiment, the cooling channel is provided in the charging gun 800, and the liquid inlet flow channel 411 and the liquid return flow channel 511 of the oil-cooled liquid cooling system 100 are respectively communicated with both ends of the cooling channel of the charging gun 800, so that the cooling medium in the oil storage cavity is input into the cooling channel of the charging gun 800 through the liquid inlet flow channel 411 by using the oil-cooled liquid cooling system 100, to take away the high temperature generated during charging of the charging gun 800, and then flows back to the oil-cooled liquid cooling system 100 through the liquid return flow channel 511 for cooling and storage. Of course, in other embodiments, the oil-cooled liquid cooling system 100 can also be used to cool other charging equipment, such as charging socket, charging terminal and the like, which are not limited herein.

[0051] It can be understood that the oil-cooled liquid cooling system 100 aims to reduce the temperature rise of the high-power charging gun and improve the service life and charging efficiency of the charging gun 800. The cooling medium can be selected as dimethyl silicone oil.

[0052] Please refer to Figures 1 to 4As shown, in the embodiment of the utility model, the oil cooling liquid cooling system 100 includes the casing 1, cooling structure 2, oil storage structure 3, liquid inlet module 4 and liquid return module 5, the casing 1 is equipped with installation cavity and the air inlet 131 and air outlet 121 that communicate installation cavity, cooling structure 2 includes the heat sink 21 and fan assembly 22 in installation cavity, the heat sink 21 is set up corresponding air outlet 121, the heat sink 21 is equipped with cooling flow channel, fan assembly 22 includes at least two fans 221 that are arranged side by side, at least two fans 221 are set up corresponding air inlet 131, and all with heat sink 21 opposite and interval arrangement, oil storage structure 3 is in casing 1, oil storage structure 3 is equipped with the oil storage cavity that communicates with cooling flow channel, and the oil storage cavity is used to store cooling medium, liquid inlet module 4 is in casing 1, liquid inlet module 4 is equipped with liquid inlet flow channel 411 that communicates oil storage cavity, liquid return module 5 is in casing 1, and is set up interval with liquid inlet module 4, and liquid return module 5 is equipped with liquid return flow channel 511 that communicates cooling flow channel, wherein the both ends of cooling channel are used to communicate liquid inlet flow channel 411 and liquid return flow channel 511 respectively, to make cooling channel, liquid return flow channel 511, cooling flow channel, oil storage cavity, liquid inlet flow channel 411 form the cold liquid channel for the circulation of cooling medium.

[0053] In the embodiment, the casing 1 of the oil cooling liquid cooling system 100 is used to install, fix and protect the cooling structure 2, the oil storage structure 3, the liquid inlet module 4 and the liquid return module 5 and the like, that is, the casing 1 provides an installation base for the cooling structure 2, the oil storage structure 3, the liquid inlet module 4 and the liquid return module 5 and the like. It can be understood that the casing 1 can be a box body, a box body, an installation shell, an installation rack or a support structure, which is not limited here.

[0054] Optionally, the installation cavity is formed in the casing 1, so that the cooling structure 2 can be installed, fixed and protected by using the installation cavity of the casing 1. In the embodiment, the casing 1 is also provided with the air inlet 131 and the air outlet 121 that communicate with the installation cavity, the heat sink 21 and the fan assembly 22 of the cooling structure 2 are arranged in the installation cavity, so that the heat sink 21 is arranged corresponding to the air outlet 121, the fan assembly 22 is arranged corresponding to the air inlet 131, and the cooling flow channel for the cooling medium to flow is arranged in the heat sink 21. In this way, the cooling medium in the cooling flow channel can be cooled by using the heat sink 21, and the cool air can be introduced into the installation cavity from the air inlet 131 by using the fan assembly 22, and the heat can be taken out from the air outlet 121 through the heat sink 21, so as to achieve heat dissipation and cooling. It can be understood that the fan 221 of the fan assembly 22 can be a hair dryer structure, which is not limited here.

[0055] It can be understood that the air outlet 121 is provided with a grille to form a plurality of small holes with the grille, which can achieve ventilation and protection. Of course, in other embodiments, the functions of the air inlet 131 and the air outlet 121 can be exchanged, that is, the air inlet 131 is an air outlet, and the air outlet 121 is an air inlet. At this time, the fan 221 of the fan assembly 22 can be a suction fan structure, which is not limited here.

[0056] In order to increase the air outlet area and improve the cooling efficiency of the heat dissipation plate 21, the size of the air outlet 121 is equivalent to the size of the heat dissipation surface of the heat dissipation plate 21, and the heat dissipation surface of the heat dissipation plate 21 is opposite to the air outlet 121. Alternatively, the heat dissipation plate 21 has two heat dissipation surfaces arranged away from each other and a peripheral side surface between the two heat dissipation surfaces. At this time, one heat dissipation surface of the heat dissipation plate 21 is opposite to the air outlet 121, and the other heat dissipation surface is opposite to the fan assembly 22. In this way, the cold air introduced by the fan assembly 22 from the air inlet 131 can be fully contacted with the two large heat dissipation surfaces and blown out through the air outlet 121.

[0057] In the present embodiment, the fan assembly 22 is arranged as at least two fans 221 arranged side by side, so that the at least two fans 221 are arranged corresponding to the air inlet 131 and are arranged opposite to and spaced apart from the heat dissipation plate 21. In this way, by arranging a plurality of small-diameter fans 221, the air supply amount can be increased, and under the condition of ensuring the air supply amount, the distance between the fan assembly 22 and the heat dissipation plate 21 can be reduced, thereby reducing the overall volume of the oil cooling liquid cooling system 100. By controlling the power of the plurality of small-diameter fans 221, the air supply amount can be ensured while reducing noise and saving power. At the same time, using at least two small fans 221 can not only reduce the size of the device, but also ensure the cooling air volume of the whole machine and improve the cooling efficiency. In this way, the cooling medium flows between the gun wire of the charging gun 800 and the heat dissipation plate 21, and the heat generated during charging of the charging gun 800 is taken away by the fan assembly 22.

[0058] It can be understood that the air inlet 131 on the shell 1 can be a large ventilation hole structure, or a plurality of small ventilation hole structures corresponding to a plurality of fans 221, which is not limited here. In the present embodiment, the at least two fans 221 of the fan assembly 22 are arranged side by side along the length direction of the heat dissipation plate 21. Alternatively, the shell 1 is provided with an air inlet 131 corresponding to each fan 221.

[0059] In the embodiment, the plurality of fans 221 can be fans or air supply structures of the same type and size, which are not limited herein. The diameter of the fan 221 is defined as d, and the distance between the fan assembly 22 and the heat sink 21 can be 0.3d. Compared with the prior art of using a large-diameter fan, the distance between the fan assembly 22 and the heat sink 21 is effectively reduced while the air supply amount is increased, thereby effectively reducing the overall volume of the oil-cooled liquid cooling system 100.

[0060] Optionally, the heat sink 21 is a multi-hole harmonica tube structure. In the embodiment, the cooling flow channel in the heat sink 21 is formed by a plurality of holes or flow channels to form a harmonica tube structure, which is not limited herein. The arrangement of the heat sink 21 can increase the cooling time of the cooling medium in the oil-cooled liquid cooling system 100, thereby increasing the heat dissipation amount.

[0061] Optionally, the thickness of the heat sink 21 is 30cm. This can effectively increase the thickness of the heat sink 21, thereby increasing the flow speed of the cooling medium. Optionally, the cooling medium is dimethyl silicone oil.

[0062] In the embodiment, the oil storage structure 3 is optionally arranged on the outer wall of the housing 1. An oil storage cavity is arranged in the oil storage structure 3, so that the oil storage cavity is used to store the cooling medium, and the oil storage cavity is in communication with the cooling flow channel, so that the cooled cooling medium flows back to the oil storage cavity for storage or the next cycle. It can be understood that the liquid inlet module 4 and the liquid return module 5 are arranged on the housing 1, so that the liquid inlet module 4 and the liquid return module 5 are conveniently connected with the charging gun 800, the liquid inlet flow channel 411 in communication with the oil storage cavity is arranged in the liquid inlet module 4, and the liquid return flow channel 511 in communication with the cooling flow channel is arranged in the liquid return module 5. When the charging gun 800 is connected with the oil-cooled liquid cooling system 100, the two ends of the cooling channel of the charging gun 800 are in communication with the liquid inlet flow channel 411 and the liquid return flow channel 511, respectively, so that the cooling channel, the liquid return flow channel 511, the cooling flow channel, the oil storage cavity, and the liquid inlet flow channel 411 form a cooling liquid channel for the circulation of the cooling medium.

[0063] It can be understood that by arranging the liquid inlet module 4 and the liquid return module 5 separately, the volume of the liquid inlet module 4 and the liquid return module 5 is reduced, thereby reducing the overall size of the machine, and the fan assembly 22 and the pipeline are separately installed, which can further reduce the assembly difficulty of the oil-cooled liquid cooling system 100.

[0064] The oil cooling liquid cooling system 100 is provided with the installation cavity in the shell 1, the heat dissipation plate 21 and the fan assembly 22 of the cooling structure 2 are arranged in the installation cavity of the shell 1, the cooling structure 2 is effectively protected, the appearance is improved, the air inlet 131 and the air outlet 121 that are communicated with the installation cavity are arranged on the shell 1, the heat dissipation plate 21 is arranged corresponding to the air outlet 121, the cooling flow channel is arranged in the heat dissipation plate 21, the fan assembly 22 is arranged as at least two fans 221 arranged side by side, the at least two fans 221 are arranged corresponding to the air inlet 131, and are arranged opposite to and spaced from the heat dissipation plate 21, so that the at least two fans 221 can be used to cool the heat dissipation plate 21, thereby improving the cooling efficiency of the cooling medium in the cooling flow channel of the heat dissipation plate 21, and the at least two fans 221 are arranged side by side, thereby ensuring the cooling air supply while effectively reducing the distance between the fan assembly 22 and the heat dissipation plate 21, so that the overall volume and noise of the oil cooling liquid cooling system 100 can be reduced; at the same time, the oil storage structure 3, the liquid inlet module 4 and the liquid return module 5 are arranged in the shell 1, so that the oil storage cavity of the oil storage structure 3 is used to store the cooling medium, the oil storage cavity of the oil storage structure 3 is communicated with the cooling flow channel and the liquid inlet flow channel 411 of the liquid inlet module 4, the liquid return flow channel 511 of the liquid return module 5 is communicated with the cooling flow channel, so that the two ends of the cooling channel of the charging gun 800 are respectively communicated with the liquid inlet flow channel 411 and the liquid return flow channel 511, thereby forming a cooling liquid channel for circulating the cooling medium, so that the cooling medium can circulate in the cooling liquid channel through the oil cooling liquid cooling system 100, the temperature rise of the charging gun 800 is reduced when the cooling medium passes through the cooling channel of the charging gun 800, and the cooling medium is cooled when passing through the cooling flow channel, thereby realizing the recycling of the cooling medium.

[0065] In order to conveniently realize the connection of the liquid return flow channel 511, the cooling flow channel, the oil storage cavity and the liquid inlet flow channel 411 in sequence, in an embodiment, the oil cooling liquid cooling system 100 further comprises a pipeline structure 6 arranged in the installation cavity, the pipeline structure 6 comprises a first pipeline 61, a second pipeline 62 and a third pipeline 63, wherein the two ends of the first pipeline 61 are respectively communicated with the oil storage cavity and the liquid inlet flow channel 411, the two ends of the second pipeline 62 are respectively communicated with the cooling flow channel and the liquid return flow channel 511, and the two ends of the third pipeline 63 are respectively communicated with the cooling flow channel and the oil storage cavity.

[0066] In the embodiment, as shown in the figure, Figure 3 The first pipeline 61, the second pipeline 62 and the third pipeline 63 are arranged as straight pipes as much as possible, so that the assembly volume and difficulty can be effectively reduced. It can be understood that the first pipeline 61, the second pipeline 62 and the third pipeline 63 can be selected as metal pipes or non-metal pipes, which are not limited here.

[0067] It can be understood that the two ends of the first pipeline 61 are connected with the oil storage structure 3 and the liquid inlet module 4 respectively, so that the liquid inlet channel 411 of the liquid inlet module 4 is communicated with the oil storage cavity of the oil storage structure 3 through the first pipeline 61, the two ends of the second pipeline 62 are connected with the liquid return module 5 and the heat dissipation plate 21 of the cooling structure 2 respectively, so that the cooling channel of the heat dissipation plate 21 is communicated with the liquid return channel 511 through the second pipeline 62, and the two ends of the third pipeline 63 are connected with the heat dissipation plate 21 of the cooling structure 2 and the oil storage structure 3 respectively, so that the cooling channel of the heat dissipation plate 21 is communicated with the oil storage cavity of the oil storage structure 3 through the third pipeline 63.

[0068] It should be noted that the oil storage structure 3 is further provided with a first inlet and a first outlet communicating with the oil storage cavity, and the heat dissipation plate 21 of the cooling structure 2 has a second inlet and a second outlet communicating with the cooling channel, at this time, the first outlet of the oil storage structure 3 is communicated with the liquid inlet channel 411 through the first pipeline 61, the liquid return channel 511 is communicated with the second inlet of the heat dissipation plate 21 through the second pipeline 62, and the second outlet of the heat dissipation plate 21 is communicated with the first inlet of the oil storage structure 3 through the third pipeline 63.

[0069] In the embodiment, the first pipeline 61 of the pipeline structure 6 on the shell 1 can also be used as the air outlet 121 and the like, which is not limited here.

[0070] In an embodiment, the oil storage structure 3 includes an oil storage tank 31 and an oil pump 32, wherein the oil storage tank 31 is arranged on the outer wall of the shell 1, the oil storage tank 31 is provided with an oil storage cavity, one end of the third pipeline 63 away from the cooling channel penetrates the shell 1 and is connected with the oil storage tank 31, and the oil pump 32 is arranged on the outer wall of the shell 1, the oil pump 32 is communicated with the oil storage cavity through an oil outlet pipe 33, and the oil pump 32 is communicated with the liquid inlet channel 411 through the first pipeline 61.

[0071] In the embodiment, as shown in Figures 1 to 4 the oil storage tank 31 and the oil pump 32 of the oil storage structure 3 are fixedly installed on the outer wall of the shell 1, which facilitates disassembly and maintenance of the oil storage structure 3 and facilitates addition of cooling medium to the oil storage tank 31. It can be understood that the oil pump 32 is communicated with the oil storage cavity of the oil storage tank 31 through the oil outlet pipe 33, so that the cooling medium in the oil storage cavity of the oil storage tank 31 can be used as a power source to make the cooling medium in the oil storage cavity of the oil storage tank 31 enter the gun wire of the charging gun 800 through the liquid inlet channel 411 of the liquid inlet module 4 to absorb heat in the charging process. Then, the high-temperature cooling medium enters the cooling channel of the heat dissipation plate 21 through the liquid return channel 511 of the liquid return module 5, is cooled by the fan assembly 22 installed behind the heat dissipation plate 21, and then returns to the oil storage cavity of the oil storage tank 31 to complete the cooling process.

[0072] In order to prolong the service life of the device, the first filter 36 is arranged at the connection between the oil pump 32 and the first pipeline 61. In this way, the content of impurities in the cooling medium can be reduced, so as to prevent the oil pump 32 from being damaged. In the embodiment, the first filter 36 can be a filter screen, a filter membrane or the like, which is not limited herein. Of course, a filter screen is arranged at the connection between the oil pump 32 and the oil outlet pipe 33, so that the filtering can be performed, and thus the impurities in the cooling medium can be further prevented from entering the oil pump 32 to damage the oil pump 32.

[0073] In an embodiment, the second filter 37 is arranged at the connection between the third pipeline 63 and the oil storage tank 31. It can be understood that, by arranging the second filter 37 between the third pipeline 63 and the first inlet of the oil storage tank 31, the content of impurities in the cooling medium entering the oil storage cavity can be further filtered, and thus the oil pump 32 can be further prevented from being damaged. Optionally, the second filter 37 can be a filter screen, a filter membrane or the like, which is not limited herein.

[0074] In an embodiment, the oil storage structure 3 further comprises a liquid level gauge 34 and a liquid level sensor 35, both of which are arranged on the oil storage tank 31 and used for detecting the liquid level of the oil storage tank 31.

[0075] In the embodiment, as shown in Figure 1 , Figure 3 and Figure 4 , by arranging the liquid level gauge 34 and the liquid level sensor 35 on the oil storage tank 31, the liquid level gauge 34 and the liquid level sensor 35 can be used to monitor the liquid level in real time during the liquid filling process. It can be understood that the oil storage tank 31 is further provided with a liquid discharge port 311 communicating with the oil storage cavity. In this way, the liquid can be quickly discharged for later maintenance.

[0076] In an embodiment, the shell 1 comprises a bottom plate 11, a front shell 12 and a rear cover 13 arranged on the bottom plate 11, the front shell 12 and the rear cover 13 are connected and surround the bottom plate 11 to form a mounting cavity, the front shell 12 is provided with an air outlet 121, the rear cover 13 is provided with an air inlet 131, and the fan assembly 22 is arranged at the air inlet 131.

[0077] In the embodiment, as shown in Figures 1 to 4 , by arranging the shell 1 as the bottom plate 11, the front shell 12 and the rear cover 13, the front shell 12 and the rear cover 13 are arranged on the bottom plate 11, and the front shell 12 and the rear cover 13 are connected in abutment, so that the front shell 12 and the rear cover 13 surround the bottom plate 11 to form the mounting cavity. It can be understood that, by arranging the air inlet 131 on the rear cover 13, the fan 221 of the fan assembly 22 can be conveniently arranged at the air inlet 131. Optionally, the rear cover 13 is provided with one air inlet 131 corresponding to each fan 221, and each fan 221 is arranged at one air inlet 131, which is not limited herein.

[0078] It can be understood that the assembly of the shell 1 is realized by fixing one end of the heat dissipation plate 21 to the bottom plate 11, extending the other end of the heat dissipation plate 21 away from the bottom plate 11, covering the heat dissipation plate 21 with the front shell 12 so that the heat dissipation plate 21 corresponds to the air outlet 121, and abutting the rear cover 13 provided with the fan assembly 22 with the front shell 12.

[0079] In the embodiment, the oil pump 32 of the oil storage structure 3 is arranged on the part of the bottom plate 11 extending out of the front shell 12 and the rear cover 13, and the oil tank 31 is arranged on the outer side wall of the front shell 12 and above the oil pump 32, so that the oil outlet pipe 33 is arranged in a straight pipe, thereby improving the appearance. It can be understood that the appearance can be further improved by arranging the pipeline structure 6 in the mounting cavity of the shell 1.

[0080] In an embodiment, the liquid inlet module 4 includes a liquid inlet block 41, a first temperature detection member 42, and a first pressure detection member 43. The liquid inlet block 41 is arranged in the shell 1, and the liquid inlet block 41 is provided with a liquid inlet flow channel 411. The first temperature detection member 42 is arranged in the liquid inlet block 41 and is used to detect the temperature of the cooling medium in the liquid inlet flow channel 411. The first pressure detection member 43 is arranged in the liquid inlet block 41 and is used to detect the pressure in the liquid inlet flow channel 411.

[0081] In the embodiment, as shown in Figure 3 The first temperature detection member 42 and the first pressure detection member 43 are arranged on the liquid inlet block 41, so that the temperature of the cooling medium in the liquid inlet flow channel 411 is detected by the first temperature detection member 42, and the pressure in the liquid inlet flow channel 411 is detected by the first pressure detection member 43, thereby facilitating the control of the cooling effect and working condition of the oil cooling liquid cooling system 100. It can be understood that the first temperature detection member 42 can be a temperature sensor, and the first pressure detection member 43 can be a pressure sensor, which are not limited herein.

[0082] In an embodiment, the liquid return module 5 includes a liquid return block 51, a second temperature detection member 52, and a second pressure detection member 53. The liquid return block 51 is arranged in the shell 1, and the liquid return block 51 is provided with a liquid return flow channel 511. The second temperature detection member 52 is arranged in the liquid return block 51 and is used to detect the temperature of the cooling medium in the liquid return flow channel 511. The second pressure detection member 53 is arranged in the liquid return block 51 and is used to detect the pressure in the liquid return flow channel 511.

[0083] In the embodiment, as shown in Figure 3As shown, the second temperature detecting member 52 and the second pressure detecting member 53 are arranged on the return liquid block 51, so that the temperature of the cooling medium in the return liquid channel 511 is detected by the second temperature detecting member 52, and the pressure in the return liquid channel 511 is detected by the second pressure detecting member 53, to facilitate the control of the cooling effect and working condition of the oil cooling liquid cooling system 100. It can be understood that the second temperature detecting member 52 can be a temperature sensor, and the second pressure detecting member 53 can be a pressure sensor, which are not limited here.

[0084] In order to facilitate the automatic control of the oil cooling liquid cooling system 100, in an embodiment, the shell 1 is further provided with a mounting hole 122 communicating with the mounting cavity, and the oil cooling liquid cooling system 100 further comprises a control structure 7 arranged in the mounting hole 122, and the control structure 7 is electrically connected with the oil storage structure 3, the cooling structure 2, the liquid inlet module 4 and the liquid return module 5.

[0085] In the present embodiment, as shown, Figures 1 to 4 the control structure 7 is arranged to be electrically connected with the oil storage structure 3, the cooling structure 2, the liquid inlet module 4 and the liquid return module 5, so that the automatic control can be realized and the operation difficulty is reduced. It can be understood that the control structure 7 comprises a control box and a control board, the control box is arranged at the mounting hole 122, and the control box comprises a bottom shell and a top cover, the top cover and the bottom shell are connected to form a cavity for mounting the control board. In order to improve the sealing performance and waterproof performance of the cavity, a sealing structure such as a sealing gasket is arranged between the top cover and the bottom shell, which is not limited here.

[0086] It can be understood that the control board of the control structure 7 is electrically connected with the oil pump 32 of the oil storage structure 3, the fan assembly 22 of the cooling structure 2, the first temperature detecting member 42 and the first pressure detecting member 43 of the liquid inlet module 4, and the second temperature detecting member 52 and the second pressure detecting member 53 of the liquid return module 5.

[0087] It should be noted that the oil cooling liquid cooling system 100 takes the temperature sensor installed on the liquid inlet block 41 and the liquid return block 51 as a control signal, when the liquid (cooling medium) in the oil cooling liquid cooling system 100 reaches a certain temperature threshold, the rotation speed of the fan 221 and the oil pump 32 is controlled to increase the air volume and the flow rate of the cooling medium, so as to achieve faster cooling effect. At the same time, in order to improve the accuracy and safety, the pressure difference of the pressure sensor installed on the liquid inlet block 41 and the liquid return block 51 is taken as a control signal, and a pressure threshold is set. When the pressure is too high, in order not to damage the charging equipment, the rotation speed of the fan 221 and the oil pump 32 will not stop immediately, but continue to run at the existing rotation speed, and an alarm signal is output, which is fed back to the charging pile action. After stopping charging, the oil cooling liquid cooling system 100 delays to stop running. At the same time, the upper computer system matched with the oil cooling liquid cooling system 100 is set, so that the upper computer system has the function of outputting temperature, pressure and liquid inlet and outlet temperature information in real time, which is convenient for users to observe and use.

[0088] As shown in Figure 4 The utility model also proposes a charging equipment 900, which comprises the oil cooling liquid cooling system 100. The specific structure of the oil cooling liquid cooling system 100 is referred to the foregoing embodiment. Since the charging equipment adopts all the technical solutions of the foregoing embodiments, it at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which will not be repeated here.

[0089] In the embodiment, as shown in Figure 4 The charging equipment 900 comprises the charging gun 800 and the oil cooling liquid cooling system 100. The cooling channel is arranged in the charging gun 800, and the two ends of the cooling channel are communicated with the liquid inlet flow channel 411 and the liquid return flow channel 511 of the oil cooling liquid cooling system 100 respectively.

[0090] It can be understood that the two ends of the cooling channel of the charging gun 800 are communicated with the liquid inlet flow channel 411 and the liquid return flow channel 511 respectively, so that the cooling channel of the charging gun 800 is matched with the liquid return flow channel 511, the cooling flow channel, the oil storage cavity and the liquid inlet flow channel 411 of the oil cooling liquid cooling system 100 to form a cooling liquid channel for circulating the cooling medium. In this way, the oil cooling liquid cooling system 100 is used to control the cooling structure flowing through the cooling channel of the charging gun 800, so as to realize the cooling of the charging gun 800, thereby improving the service life and charging efficiency of the charging gun 800.

[0091] Of course, in other embodiments, the oil cooling liquid cooling system 100 can also be used to cool other charging equipment, such as charging sockets, charging terminals and the like, which are not limited here.

[0092] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the concept of the present application and using the content of the present application specification and drawings is included in the patent protection scope of the present application.

Claims

1. An oil-coolant cooling system for cooling a charging gun, the charging gun being provided with a cooling channel therein, characterized in that, The oil cooling liquid cooling system comprises: a housing provided with a mounting cavity, an air inlet and an air outlet communicating with the mounting cavity; a cooling structure comprising a heat dissipation plate arranged in the mounting cavity and a fan assembly, the heat dissipation plate is arranged corresponding to the air outlet, the heat dissipation plate is provided with a cooling flow channel, the fan assembly comprises at least two fans arranged side by side, at least two fans are arranged corresponding to the air inlet, and are arranged opposite to and spaced from the heat dissipation plate; an oil storage structure arranged in the housing, the oil storage structure is provided with an oil storage cavity communicating with the cooling flow channel, and the oil storage cavity is used for storing a cooling medium; a liquid inlet module arranged in the housing, the liquid inlet module is provided with a liquid inlet flow channel communicating with the oil storage cavity; and a liquid return module arranged in the housing and spaced from the liquid inlet module, the liquid return module is provided with a liquid return flow channel communicating with the cooling flow channel; wherein the two ends of the cooling channel are used for communicating with the liquid inlet flow channel and the liquid return flow channel respectively, so that the cooling channel, the liquid return flow channel, the cooling flow channel, the oil storage cavity and the liquid inlet flow channel form a cooling liquid channel for circulating the cooling medium.

2. The oil cooling liquid cooling system of claim 1, wherein, At least two fans are arranged side by side along the length direction of the heat dissipation plate; And / or, the diameter of the fan is defined as d, and the distance between the fan assembly and the heat dissipation plate is 0.3d.

3. The oil cooling liquid cooling system of claim 1, wherein, The heat dissipation plate is a multi-hole organ pipe structure; And / or, the thickness of the heat dissipation plate is 30cm; And / or, the cooling medium is dimethyl silicone oil.

4. The oil cooling liquid cooling system of claim 1, wherein, The oil cooling liquid cooling system further comprises a pipeline structure arranged in the mounting cavity, the pipeline structure comprises: a first pipeline, both ends of the first pipeline communicate with the oil storage cavity and the liquid inlet flow channel respectively; a second pipeline, both ends of the second pipeline communicate with the cooling flow channel and the liquid return flow channel respectively; and a third pipeline, both ends of the third pipeline communicate with the cooling flow channel and the oil storage cavity respectively.

5. The oil cooling liquid cooling system of claim 4, wherein, The oil storage structure comprises: an oil storage tank arranged on the outer wall of the housing, the oil storage tank is provided with the oil storage cavity, and the end of the third pipeline away from the cooling flow channel penetrates the housing and is connected with the oil storage tank; and an oil pump arranged on the outer wall of the housing, the oil pump communicates with the oil storage cavity through an oil outlet pipe, and the oil pump communicates with the liquid inlet flow channel through the first pipeline.

6. The oil cooling liquid cooling system of claim 5, wherein, The oil storage structure further comprises a liquid level meter and a liquid level sensor, both the liquid level meter and the liquid level sensor are arranged in the oil storage tank and used for detecting the liquid level of the oil storage tank; And / or, a first filter is arranged at the connection between the oil pump and the first pipeline; And / or, a second filter is arranged at the connection between the third pipeline and the oil storage tank; And / or, the oil storage tank is further provided with a liquid discharge port communicating with the oil storage cavity.

7. The oil cooling liquid cooling system of claim 1, wherein, The housing comprises a bottom plate, a front shell arranged on the bottom plate and a rear cover, the front shell and the rear cover are connected and surround the bottom plate to form the mounting cavity, the front shell is provided with the air outlet, the rear cover is provided with the air inlet, and the fan assembly is mounted at the air inlet.

8. The oil cooling liquid cooling system of claim 1, wherein, The liquid inlet module comprises a liquid inlet block, a first temperature detecting member and a first pressure detecting member, the liquid inlet block is arranged in the shell, the liquid inlet flow channel is arranged in the liquid inlet block, the first temperature detecting member is arranged in the liquid inlet block and is used for detecting the temperature of the cooling medium in the liquid inlet flow channel, and the first pressure detecting member is arranged in the liquid inlet block and is used for detecting the pressure in the liquid inlet flow channel. And / or, the liquid return module comprises a liquid return block, a second temperature detecting member and a second pressure detecting member, the liquid return block is arranged in the shell, the liquid return flow channel is arranged in the liquid return block, the second temperature detecting member is arranged in the liquid return block and is used for detecting the temperature of the cooling medium in the liquid return flow channel, and the second pressure detecting member is arranged in the liquid return block and is used for detecting the pressure in the liquid return flow channel.

9. The oil cooling liquid cooling system according to any one of claims 1 to 8, characterized by, The shell is further provided with a mounting hole communicating with the mounting cavity, and the oil-cooled liquid cooling system further comprises a control structure arranged in the mounting hole, and the control structure is electrically connected with the oil storage structure, the cooling structure, the liquid inlet module and the liquid return module.

10. A charging device, characterized by The charging device comprises: a charging gun, the charging gun being provided with a cooling channel; and The oil-cooled liquid cooling system according to any one of claims 1 to 9, both ends of the cooling channel are communicated with the liquid inlet flow channel and the liquid return flow channel of the oil-cooled liquid cooling system.

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