Heat exchanger, liquid cooling heat dissipation system and charging equipment

Abstract

The embodiment of the utility model provides a heat exchanger, a liquid cooling heat dissipation system and charging equipment. The heat exchanger comprises a tube bundle array which comprises a plurality of heat exchange tubes arranged in the first direction, and the tube bundle array comprises a first end and a second end which are oppositely arranged; the first liquid collecting pipe is arranged at the first end, and the first liquid collecting pipe is communicated with part of the heat exchange pipes of the pipe bundle array; the first liquid collecting pipe is used for communicating with a liquid inlet of the heat exchanger; the second liquid collecting pipe and the first liquid collecting pipe are mutually independent, the second liquid collecting pipe and the first liquid collecting pipe are arranged at the first end side by side in the first direction, and the second liquid collecting pipe is communicated with the other part of heat exchange pipes in the pipe bundle array; and the third liquid collecting pipe is arranged at the second end, and the third liquid collecting pipe is at least communicated with the heat exchange pipes communicated with the first liquid collecting pipe and the second liquid collecting pipe in the pipe bundle array. And it can be ensured that cooling liquid completely passes through the heat dissipation pipe for sufficient heat dissipation, and the heat dissipation efficiency of the charging equipment is improved.

Description

Technical Field

[0001] This application relates to the field of charging equipment technology, and in particular to a heat exchanger, a liquid cooling system and a charging device. Background Technology

[0002] With the rapid development of new energy vehicles, the demand for and deployment of charging systems are increasing. Furthermore, the charging power requirements of these systems are also rising. To meet these power demands, liquid cooling systems are typically used to dissipate heat from the charging equipment. However, in some liquid cooling systems, the liquid may be discharged directly without undergoing heat exchange, affecting the cooling efficiency of the charging equipment. Utility Model Content

[0003] This application provides a heat exchanger, a liquid cooling system, and a charging device, which can ensure that the coolant is fully cooled through the heat dissipation pipes, thereby improving the heat dissipation efficiency of the charging device.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] In a first aspect, embodiments of this application provide a heat exchanger, including:

[0006] The tube bundle array includes multiple heat exchange tubes arranged along a first direction, and the tube bundle array includes a first end and a second end arranged opposite to each other.

[0007] The first liquid collecting pipe is located at the first end and is connected to part of the heat exchange tubes of the tube bundle array; the first liquid collecting pipe is used to connect to the liquid inlet of the heat exchanger.

[0008] The second liquid collecting tube is independent of the first liquid collecting tube. The second liquid collecting tube and the first liquid collecting tube are arranged side by side at the first end along the first direction. The second liquid collecting tube is connected to another part of the heat exchange tubes in the tube bundle array.

[0009] The third liquid collecting tube is located at the second end and is connected to at least one heat exchange tube in the tube bundle array that is connected to the first and second liquid collecting tubes.

[0010] In this embodiment, multiple heat exchange tubes arranged along a first direction form a tube bundle array, and a first liquid collecting tube is provided at the first end of the tube bundle array. The first liquid collecting tube is connected to a portion of the heat exchange tubes in the tube bundle array. A second liquid collecting tube, independent of the first liquid collecting tube, is provided side by side at the first end. The second liquid collecting tube is arranged along the first direction with the first liquid collecting tube and is connected to another portion of the heat exchange tubes in the tube bundle array. A third liquid collecting tube is provided at the second end of the tube bundle array. The third liquid collecting tube is connected to at least the heat exchange tubes in the tube bundle array that are connected to the first and second liquid collecting tubes. Thus, since the second liquid collecting pipe is independent of the first liquid collecting pipe and is arranged side by side along the first direction, the flow path of the cooling medium can be from the liquid inlet of the heat exchanger, through the first liquid collecting pipe, through the part of the heat exchange pipe connected to the first liquid collecting pipe, through the third liquid collecting pipe, through another part of the heat exchange pipe connected to the second liquid collecting pipe, and then into the second liquid collecting pipe. This extends the flow path within the heat exchanger and the heat transfer area of ​​the heat exchanger to transfer heat to the outside, thereby improving the heat exchange and cooling effect of the heat exchanger.

[0011] In one implementation, a first preset gap exists between the ends of the first and second liquid collection tubes that are close to each other.

[0012] In this embodiment, the first and second liquid collecting pipes are separated at their closest ends to form a first preset gap. This physically separates the first and second liquid collecting pipes, and the liquid in the first liquid collecting pipe is confined to flow from a portion of the heat exchange tubes in the tube bundle array to the third liquid collecting pipe, and then from the third liquid collecting pipe along another portion of the heat exchange tubes in the tube bundle array to the second liquid collecting pipe. This extends the liquid's flow path within the tube bundle array and increases the heat transfer area for heat transfer from the liquid to the outside of the tube bundle array, thereby improving the cooling effect on the liquid and the cooling and heat dissipation effect on the heat source.

[0013] Understandably, in the first direction, both the end of the first collecting pipe near the second collecting pipe and the end of the second collecting pipe near the first collecting pipe are sealed. Liquid in the first collecting pipe cannot flow directly from the end of the first collecting pipe near the second collecting pipe to the second collecting pipe.

[0014] In one implementation, the tube array includes:

[0015] The first sub-tube bundle array includes at least one heat exchange tube, and the first sub-tube bundle array is connected between the first liquid collection tube and the third liquid collection tube;

[0016] The second sub-tube bundle array includes at least one heat exchange tube, and the second sub-tube bundle array is connected between the third liquid collection tube and the second liquid collection tube; the second liquid collection tube is used to communicate with the liquid outlet of the heat exchanger.

[0017] In this embodiment, a first sub-tube bundle array is connected between a first liquid collection tube and a third liquid collection tube, and a second sub-tube bundle array is connected between a third liquid collection tube and a second liquid collection tube. This facilitates control over the flow rate of the liquid within the first and second sub-tube bundle arrays by controlling the number of heat dissipation tubes in each array, thus enabling efficient heat dissipation through flow rate control.

[0018] In one implementation, the number of heat exchange tubes in the first sub-tube bundle array is the same as the number of heat exchange tubes in the second sub-tube bundle array.

[0019] In this embodiment, by setting the number of heat exchange tubes in the first sub-tube bundle array to be the same as the number of heat exchange tubes in the second sub-tube bundle array, the cross-sectional area of ​​the liquid flowing from the first liquid collector into the tube bundle array is the same as the cross-sectional area of ​​the liquid flowing into the second liquid collector. In other words, when the number of heat exchange tubes in the tube bundle array remains at a preset number, the liquid has a large cross-sectional area in both the first and second sub-tube bundle arrays, allowing the liquid to flow at a slower speed. This prolongs the heat dissipation time of the liquid flowing through the tube bundle array and reduces the pressure drop of the liquid flow, thereby improving the cooling effect of the heat exchanger.

[0020] In one implementation, the number of heat exchange tubes in the first sub-tube bundle array is different from that in the second sub-tube bundle array.

[0021] In this embodiment, the number of heat exchange tubes in the first sub-tube bundle array is different from the number of heat exchange tubes in the second sub-tube bundle array. Thus, the cross-sectional area of ​​the liquid flow in the first sub-tube bundle array is different from that in the second sub-tube bundle array. Consequently, the flow velocity of the liquid in the first sub-tube bundle array is different from that in the second sub-tube bundle array, resulting in different heat dissipation efficiencies for the two sub-tube bundle arrays. This facilitates the arrangement of other component structures (such as power pumps and infusion pipes) in the heat dissipation system, improves the space utilization of the heat dissipation system, and reduces the overall volume of the heat dissipation system.

[0022] In one implementation, the heat exchanger further includes a fourth liquid collecting pipe, which is independently arranged side-by-side with the third liquid collecting pipe at the second end; the fourth liquid collecting pipe and the third liquid collecting pipe are arranged along a first direction; the tube bundle array further includes:

[0023] The third sub-tube bundle array includes at least one heat exchange tube, and the third sub-tube bundle array is connected between the second liquid collection tube and the fourth liquid collection tube;

[0024] Among them, at least two of the first sub-tube bundle array, the second sub-tube bundle array, and the third sub-tube bundle array have the same number of heat exchange tubes.

[0025] In this embodiment, a fourth liquid collector, independent of the third liquid collector, is arranged parallel to the second end of the tube bundle array and along the first direction. Thus, the fourth liquid collector can separate a third sub-tube bundle array from the tube bundle array with a predetermined number of heat exchange tubes. The third sub-tube bundle array is connected between the second and fourth liquid collectors. In other words, the liquid in the second liquid collector can flow to the fourth liquid collector through the third sub-tube bundle array. This divides the tube bundle array into a first, second, and third sub-tube bundle array, reducing the cross-sectional area of ​​the liquid flow in these arrays, increasing the liquid flow velocity, and increasing the contact frequency between the liquid and the heat exchange tube wall. This facilitates the formation of turbulence within the tube bundle array, weakens the low-velocity region where the liquid adheres closely to the tube wall, reduces thermal resistance, accelerates heat transfer, improves heat transfer efficiency, and is beneficial for cooling and dissipating heat from the heat source.

[0026] In one implementation, the heat exchanger further includes a fifth liquid collecting tube, which is independently and side-by-side with the first and second liquid collecting tubes at the first end. The tube bundle array also includes:

[0027] The fourth sub-tube bundle array includes at least one heat exchange tube, and the fourth sub-tube bundle array is connected between the fourth liquid collection tube and the fifth liquid collection tube.

[0028] In one implementation, the fifth liquid collecting tube is arranged along the first liquid collecting tube and the second liquid collecting tube in a first direction.

[0029] In one implementation, the heat exchange tubes of the fourth sub-tube bundle array are arranged along a second direction with the heat exchange tubes of at least one of the first and second sub-tube bundle arrays; the second direction intersects the first direction.

[0030] Along the second direction, the fifth collection tube is arranged on one side of either the first collection tube or the second collection tube.

[0031] In this embodiment, by providing a fifth liquid collector independent of the first and second liquid collectors at the first end, the tube bundle array of the preset number of heat exchange tubes includes a fourth sub-tube bundle array, which is connected between the fourth and fifth liquid collectors. That is, the liquid in the fourth liquid collector can flow to the fifth liquid collector through the fourth sub-tube bundle array. This increases the liquid's flow path within the tube bundle array, prolonging the heat exchange contact time between the liquid and the cold medium. Furthermore, dividing the tube bundle array into first, second, third, and fourth sub-tube bundle arrays reduces the cross-sectional area of ​​the liquid flow within these arrays, increasing the liquid's flow velocity and the contact frequency between the liquid and the heat exchange tube wall. This facilitates the formation of turbulence within the tube bundle array, weakens the low-velocity region where the liquid adheres closely to the tube wall, reduces thermal resistance, accelerates heat transfer, and improves heat transfer efficiency, thus aiding in cooling and dissipating heat from the heat source.

[0032] In addition, by adjusting the number of heat exchange tubes in the first, second, third, and fourth sub-tube bundle arrays, the liquid flow velocities in the first, second, third, and fourth sub-tube bundle arrays can be made different. This facilitates the arrangement of other components of the heat exchange system, reduces the impact of other components on the flow velocity of the cold medium on the heat exchange efficiency, and improves the cooling and heat dissipation effect on the heat source.

[0033] In addition, in some examples of the embodiments of this application, the number of heat exchange tubes in the first sub-tube bundle array, the second sub-tube bundle array, the third sub-tube bundle array, and the fourth sub-tube bundle array are different. This results in non-uniform liquid flow velocity within the tube bundle array. Thus, other components (such as the power pump, infusion pipe, or controller described in detail in the foregoing embodiments of this application) can be placed on one side of the region with higher flow velocity (e.g., the region corresponding to the first or third sub-tube bundle array). Although this will cause some loss in airflow, the heat transfer efficiency is higher in the region with higher liquid flow velocity, which can compensate for the loss of heat transfer performance caused by the airflow. Furthermore, in the region with slower flow velocity (e.g., the region corresponding to the second and fourth sub-tube bundle arrays), the slower liquid flow velocity can mitigate the increased flow resistance caused by the increased flow velocity, thereby reducing the pressure drop of the liquid cooling system and saving power pump energy.

[0034] In one implementation, the heat exchanger further includes a sixth liquid collecting tube, which is independently and side-by-side with the third and fourth liquid collecting tubes at the second end; the tube bundle array also includes:

[0035] The fifth sub-tube bundle array includes at least one heat exchange tube, and the fifth sub-tube bundle array is connected between the fifth liquid collection tube and the sixth liquid collection tube;

[0036] The number of heat exchange tubes in the first, second, third, fourth, and fifth sub-tube bundle arrays is the same.

[0037] By setting a sixth liquid collector parallel to and independent of the third and fourth liquid collectors at the second end, the fifth sub-tube bundle array of the tube bundle array is connected between the fifth and sixth liquid collectors, allowing the liquid in the fifth liquid collector to flow from the fifth sub-tube bundle array to the sixth liquid collector. Furthermore, by setting the number of heat exchange tubes in the first, second, third, fourth, and fifth sub-tube bundle arrays to be the same, the flow velocity of the liquid within the tube bundle array can be increased. This can increase the degree of turbulence, reduce thermal resistance, and improve heat transfer efficiency.

[0038] In addition, increasing the liquid flow rate can reduce the residence time of the liquid on the heat exchange tube wall, thereby reducing the probability of fouling and thus reducing thermal resistance and improving heat transfer efficiency.

[0039] In addition, with the same heat transfer area (tube bundle array), increasing the liquid flow rate can shorten the time it takes for the liquid to pass through the heat exchange tubes, reduce the heat retention in the heat exchange tubes, accelerate the entire heat exchange process, and improve the cooling and heat dissipation effect on the heat source.

[0040] In addition, the tube bundle array is divided into five sub-tube bundle arrays, and the liquid needs to flow through each sub-tube bundle array in sequence, which prolongs the flow of the liquid in the heat exchanger and is conducive to the full heat dissipation and cooling of the liquid.

[0041] In one implementation, there is a second preset gap between adjacent heat exchange tubes of the tube bundle array, and heat dissipation fins are provided in the second preset gap, which are thermally connected to the heat exchange tubes.

[0042] In this embodiment, a second preset gap is provided between adjacent heat exchange tubes, and heat dissipation fins are provided within the second preset gap. The heat dissipation fins are thermally connected to the heat exchange tubes. In this way, the heat carried by the liquid in the heat exchange tubes can be transferred to the heat dissipation fins for heat dissipation, increasing the heat dissipation area and improving the heat dissipation efficiency, that is, improving the cooling efficiency of the heat source.

[0043] On the other hand, embodiments of this application provide a liquid cooling heat dissipation system, including:

[0044] The heat exchanger provided in the foregoing embodiments or implementations of this application;

[0045] A cooling fan is located on one side of the heat exchanger and is configured to drive airflow through the heat exchanger in a second direction; the second direction intersects with the first direction.

[0046] The power pump, along the second direction, is located on one side of the heat exchanger, and the inlet of the power pump is connected to the outlet of the heat exchanger.

[0047] In this embodiment, a cooling fan is installed on one side of the heat exchanger, positioned along a second direction. This allows the cooling fan to provide cool air from one side of the heat exchanger to the other side of the tube array as a heat transfer medium to remove heat from the tube array as the liquid flows through it. A power pump is also installed along the second direction, located on one side of the heat exchanger and connected to its outlet. This provides power for the liquid flow in the cooling system, compensating for pressure drop and ensuring sufficient flow velocity, thus guaranteeing effective heat dissipation.

[0048] In one implementation, the number of heat exchange tubes in the first sub-tube bundle array is different from the number of heat exchange tubes in the second sub-tube bundle array; along the second direction, the power pump is located on one side of the first sub-tube bundle array and the second sub-tube bundle array with fewer heat exchange tubes.

[0049] In this embodiment, the number of heat exchange tubes in the first sub-tube bundle array and the second sub-tube bundle array are set to be different. The power pump is placed on one side of the sub-tube bundle array with fewer heat exchange tubes. Since the flow cross-sectional area of ​​the sub-tube bundle array with fewer heat exchange tubes is smaller, the liquid flow rate is faster, resulting in higher heat dissipation efficiency. However, increased flow rate also increases flow resistance and pressure drop in the cooling system. Placing the power pump on one side of the sub-tube bundle array with fewer heat exchange tubes ensures that, although the power pump affects the airflow, the higher liquid flow rate does not affect the overall cooling efficiency, thus reducing the space required for the liquid cooling system.

[0050] In one implementation, the liquid cooling system further includes:

[0051] A liquid storage tank is located within the heat exchanger;

[0052] The infusion tube is connected at one end to the storage tank and at the other end to the inlet of the power pump. The infusion tube is located on one side of the first sub-tube bundle array and the second sub-tube bundle array, which has fewer heat exchange tubes.

[0053] In this embodiment, by placing the infusion tube on one side of the first sub-tube bundle array and the second sub-tube bundle array where the number of heat exchange tubes is smaller, the impact of the infusion tube on the heat dissipation efficiency is reduced, ensuring the overall heat dissipation efficiency of the heat dissipation system and reducing the space required by the heat dissipation system.

[0054] In one alternative implementation, the liquid cooling system further includes:

[0055] The controller controls the operating power of the cooling fan based on the inlet temperature of the first liquid collection pipe and the operating power of the power pump based on the temperature and pressure at the outlet of the power pump.

[0056] In this embodiment of the application, the operating power of the cooling fan and the power pump are controlled by the controller, which can improve the effective use of energy and improve energy utilization efficiency.

[0057] Thirdly, embodiments of this application provide a charging device, including:

[0058] The liquid cooling heat dissipation system provided in the foregoing embodiments of this application, and

[0059] The charging gun has a liquid cooling pipe. The outlet of the power pump of the liquid cooling system is connected to the liquid cooling pipe, and the liquid cooling pipe is connected to the first liquid collection pipe of the liquid cooling system. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the structure of the charging device provided in the embodiments of this application;

[0061] Figure 2 A schematic diagram of a liquid cooling system in a charging device provided in an embodiment of this application;

[0062] Figure 3 A schematic diagram of a heat exchanger in a charging device provided in an embodiment of this application;

[0063] Figure 4 A frame structure diagram of a heat exchanger in a charging device provided in this application embodiment;

[0064] Figure 5 This is another frame structure diagram of the heat exchanger in the charging device provided in the embodiments of this application;

[0065] Figure 6 This is a schematic diagram of another frame structure of the heat exchanger in the charging device provided in the embodiments of this application;

[0066] Figure 7 This is another structural schematic diagram of the heat exchanger in the charging device provided in the embodiments of this application;

[0067] Figure 8 This is a schematic diagram of another frame structure of the heat exchanger in the charging device provided in the embodiments of this application.

[0068] Explanation of reference numerals in the attached figures:

[0069] 10 - Liquid cooling system; 20 - Charging gun;

[0070] 100 - Heat exchanger; 200 - Cooling fan; 300 - Power pump; 400 - Liquid storage tank; 500 - Controller;

[0071] 110 - Tube bundle array; 120 - First collection tube; 130 - Second collection tube; 140 - Third collection tube; 150 - Fourth collection tube; 160 - Fifth collection tube; 170 - Sixth collection tube; 401 - Infusion tube;

[0072] 1001-Liquid inlet; 1002-Liquid outlet; 1101-Heat exchange tube; 111-First end; 112-Second end; 113-First sub-tube bundle array; 114-Second sub-tube bundle array; 115-Third sub-tube bundle array; 116-Fourth sub-tube bundle array; 117-Fifth sub-tube bundle array; 118-Second preset gap; 119-Heat dissipation fins; 121-First preset gap. Detailed Implementation

[0073] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. To facilitate a clear description of the technical solutions of the embodiments of this application, the use of terms such as "first," "second," etc., in the embodiments of this application is for illustrative purposes and to distinguish the objects being described. There is no particular order between them, nor does it indicate a specific limitation on the number of devices in the embodiments of this application, and they do not constitute any limitation on the embodiments of this application.

[0074] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0075] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0076] In the description of this application, it should be understood that the terms "upper," "lower," "horizontal," "bottom," "inner," and "outer" (if any) indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. In this application, unless otherwise expressly specified and limited, "upper" or "lower" of the first feature and the second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0077] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure, but are simply connected to form a whole. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0078] In this application, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0079] Figure 1 This is a schematic diagram of the structure of the charging device provided in an embodiment of this application.

[0080] Reference Figure 1 As shown, in order to meet the increasingly higher charging power requirements of new energy vehicles, some examples of embodiments of this application provide a charging device.

[0081] In some examples, the charging device can be a fast charging device.

[0082] In some examples, the charging device can be a supercharger. In some examples, a supercharger can refer to a charging device with a single-gun charging power of not less than 350kW, a maximum output voltage of not less than 1000V, and a continuous charging current of not less than 400A. In some examples, a supercharger can be a charging device with a charging power of not less than 480kW.

[0083] In some examples, supercharging devices may include liquid-cooled supercharging and air-cooled supercharging. Liquid-cooled supercharging refers to heat dissipation through coolant circulation, which can support higher power. Liquid-cooled supercharging devices may include a liquid cooling system 10, which may be located within the charging device.

[0084] In some examples, refer to Figure 1 As shown, the charging device may include a charging gun 20.

[0085] In some examples, the charging equipment may include a charging station (not shown in the figure). The charging gun 20 may be electrically connected to the charging station.

[0086] In some examples, the charging gun 20 tends to overheat under high charging power. To dissipate heat from the charging gun 20, refer to... Figure 1 As shown, the charging device may include a liquid cooling system 10.

[0087] In some examples, the charging gun 20 may be equipped with liquid cooling pipes (not shown in the figure). The liquid cooling pipes may be located inside the charging gun 20.

[0088] In some examples, the liquid cooling pipes may be connected to the liquid cooling heat dissipation system 10.

[0089] In some examples, refer to Figure 1 As shown, the liquid-cooled fan system may include a heat exchanger 100.

[0090] Figure 2 This is a schematic diagram of a liquid cooling system in a charging device provided in an embodiment of this application.

[0091] In some examples, heat exchanger 100 may be a plate heat exchanger 100.

[0092] In some examples, heat exchanger 100 may be a shell-and-tube heat exchanger 100.

[0093] In some examples, heat exchanger 100 may be a flat-tube heat exchanger 100.

[0094] It is understood that in some examples of the embodiments of this application, the specific type of heat exchanger 100 is only shown as a specific example and is not intended to limit the specific type of heat exchanger 100.

[0095] In some examples, refer to Figure 1As shown, the heat exchanger 100 may have an inlet 1001 and an outlet 1002. The inlet 1001 may be connected to a liquid-cooling pipe within the charging gun 20. After cooling the charging gun 20, the liquid in the liquid-cooling pipe can enter the heat exchanger 100 through the inlet 1001 and undergo heat exchange there. The outlet 1002 may also be connected to the liquid-cooling pipe within the charging gun 20. The liquid cooled by heat exchange in the heat exchanger 100 may enter the liquid-cooling pipe within the charging gun 20 through the outlet 1002 to further cool the charging gun 20.

[0096] In some examples, refer to Figure 2 As shown, the heat exchanger 100 may include a tube bundle array 110.

[0097] In some examples, the tube bundle array 110 may be formed by arranging multiple heat exchange tubes 1101 in an array. The heat exchange tubes 1101 may be arranged along a first direction (e.g., Figure 2 The heat exchange tubes 1101 can be arranged along a second direction (e.g., the direction shown by the x-axis). Figure 2 Arranged in the direction indicated by the y-axis.

[0098] In some examples, refer to Figure 2 As shown, the tube bundle array 110 can be a plurality of flat tubes along a first direction (e.g., Figure 2 The array is formed by arranging the elements in the direction indicated by the x-axis.

[0099] Figure 3 This is a schematic diagram of a heat exchanger in a charging device provided in an embodiment of this application. Figure 4 This is a frame structure diagram of a heat exchanger in a charging device provided in an embodiment of this application.

[0100] In some examples, the tube array 110 may include a first end 111 and a second end 112 positioned opposite each other.

[0101] In some examples, the tube bundle array 110 may include multiple heat exchange tubes 1101. The multiple heat exchange tubes 1101 may be along a first direction (e.g., Figure 2 Arranged in the direction shown by the x-axis.

[0102] In some examples, refer to Figure 3 As shown, to facilitate the introduction of liquid flowing from the charging gun 20 into the tube bundle array 110, the heat exchanger 100 may include a first liquid collecting pipe 120. The first liquid collecting pipe 120 may be located at the first end 111 of the tube bundle array 110. The first liquid collecting pipe 120 may be connected to a portion of the heat exchange tubes 1101 in the tube bundle array 110.

[0103] In some examples, refer to Figure 4As shown, the first liquid collection pipe 120 can be connected to the liquid inlet 1001 of the heat exchanger 100.

[0104] In some examples, refer to Figure 4 As shown, the first end 111 of the tube array 110 can be one end of the tube array 110 facing the first liquid collecting tube 120, along the flow direction of the liquid within the tube array 110. Figure 4 The direction shown is illustrated as an example; the tube array 110 can be along... Figure 4 The direction array arrangement shown by the x-axis allows the liquid to move along the tube bundle array 110. Figure 4 The flow is in the direction indicated by the y-axis; that is, along... Figure 4 In the direction shown by the y-axis, the first end 111 of the tube array 110 can be one end facing the first collection tube 120 along the positive y-axis direction.

[0105] In some examples, the first collection tube 120 can be sealed to the first end 111 of the tube bundle array 110.

[0106] In some examples, the first collection tube 120 may be fixedly connected to the first end 111 of the tube bundle array 110.

[0107] In some examples, the first liquid collection pipe 120 may have multiple liquid outlets on the side facing the first end 111, and each liquid outlet is connected to the inlet of a heat exchange pipe 1101.

[0108] In some examples, the first collection tube 120 may be welded to the first end 111 of the tube bundle array 110.

[0109] In some examples, the liquid cooling pipe of the charging gun 20 can be connected to the first liquid collecting pipe 120 (e.g., connected to the first liquid collecting pipe 120 through the liquid inlet 1001 of the heat exchanger). Inside the charging gun 20, after the cooling liquid cools and dissipates heat from the charging gun 20, the cooling liquid becomes a hot liquid upon heating. (Refer to...) Figure 4 As shown, hot liquid can flow along Figure 4 The liquid enters the first collection tube 120 in the direction indicated by the middle arrow a.

[0110] In some examples, refer to Figure 4 As shown, the cross-sectional area of ​​the heat exchange tubes 1101 of the tube bundle array 110 is smaller than the cross-sectional area of ​​the main channel of the liquid cooling system 10, and the liquid flows along... Figure 4 The direction indicated by the x-axis fills the first liquid collection tube 120. That is, the first liquid collection tube 120 can evenly distribute the liquid into a portion of the tube bundle array 110 connected to the first liquid collection tube 120.

[0111] In some examples, refer to Figure 4As shown, the liquid entering the tube bundle array 110 from the first liquid collection tube 120 can flow along... Figure 4 The flow, indicated by the negative y-axis, flows within the tube array 110 and from the first end 111 to the second end 112 of the tube array 110.

[0112] In some examples of embodiments of this application, the liquid is distributed in multiple heat exchange tubes 1101 through the first liquid collection tube 120. The hot liquid flowing out of the liquid storage tube of the heat source is distributed in multiple heat exchange tubes 1101, which can increase the heat exchange area between the hot fluid and the external environment and improve the cooling and heat dissipation efficiency of the liquid.

[0113] In some examples, refer to Figure 2 and Figure 3 As shown, the heat exchange tube 1101 may include a flat tube. Along the width direction of the flat tube (e.g.) Figure 2 (In the direction shown by the y-axis), the first liquid collecting pipe 120 can completely cover the inlet of the flat pipe. In this way, it can be ensured that after the first liquid collecting pipe 120 delivers the cooling medium (e.g., liquid) to the heat exchange pipe 1101 connected to the first liquid collecting pipe 120, the cooling medium can flow along the heat exchange pipe 1101 and avoid backflow.

[0114] In some examples, refer to Figure 3 and Figure 4 As shown, the heat exchanger 100 may include a second liquid collecting pipe 130. The second liquid collecting pipe 130 may be disposed at the first end 111 of the tube bundle array 110. The second liquid collecting pipe 130 may be arranged side by side with the first liquid collecting pipe 120 along a first direction.

[0115] In some examples, the second collection tube 130 is relatively independent of the first collection tube 120. That is, there is no direct connection or direct communication between the first collection tube 120 and the second collection tube 130.

[0116] In some examples, the ends of the first liquid collecting pipe 120 and the second liquid collecting pipe 130 that are close to each other can be in contact, but the liquid flow cavities inside the first liquid collecting pipe 120 and the second liquid collecting pipe 130 are not connected. In other words, the first liquid collecting pipe 120 and the second liquid collecting pipe 130 are two independent pipes. The end of the first liquid collecting pipe 120 facing the second liquid collecting pipe 130 is completely closed, and the first liquid collecting pipe 120 is only connected to a portion of the heat exchange tubes 1101 in the tube bundle array 110. The end of the second liquid collecting pipe 130 facing the first liquid collecting pipe 120 is completely closed, and the second liquid collecting pipe 130 is only connected to another portion of the heat exchange tubes 1101 in the tube bundle array 110.

[0117] In some examples, the second liquid collection tube 130 may receive liquid delivered by a portion of the heat exchange tube 1101 connected to the second liquid collection tube 130.

[0118] In some examples, refer to Figure 3 and Figure 4 As shown, the heat exchanger 100 may include a third liquid collection pipe 140. The third liquid collection pipe 140 may be located at the second end 112 of the tube bundle array 110.

[0119] In some examples, the third liquid collecting pipe 140 is at least connected to the heat exchange pipe 1101 in the tube bundle array 110 that is connected to the first liquid collecting pipe 120 and the second liquid collecting pipe 130. The connection method between the third liquid collecting pipe 140 and the tube bundle array 110 can be the same as, similar to or similar to the connection method between the first liquid collecting pipe 120 and the tube bundle array 110. For details, please refer to the detailed description of the first liquid collecting pipe 120 in the foregoing embodiments of this application. The embodiments of this application will not repeat the details.

[0120] In some examples, refer to Figure 4 As shown, liquid discharged from the liquid-cooled pipe of the heat source (e.g., the charging gun 20 described in detail in the preceding embodiments of this application) can enter the first liquid collection pipe 120. The first liquid collection pipe 120 can evenly distribute the liquid to a portion of the heat exchange pipe 1101 connected to the first liquid collection pipe 120, and along... Figure 4 The negative direction of the y-axis flows in the tube array 110.

[0121] In some examples, refer to Figure 4 As shown, along the liquid Figure 4 When the liquid flows in the negative y-axis direction to the second end 112 of the tube array 110, it enters the third collection tube 140 from the second end 112 of the tube array 110 and flows along... Figure 4 The flow direction is indicated by the positive x-axis.

[0122] In some examples, refer to Figure 4 As shown, after the third liquid collecting tube 140 is filled with liquid, the liquid in the third liquid collecting tube 140 flows along... Figure 4 The liquid enters the tube array 110 in the direction indicated by the positive y-axis and flows along the tube array 110 into the second collection tube 130.

[0123] In some examples of embodiments of this application, by arranging the heat exchange tubes 1101 along a first direction, independently setting the first liquid collecting tube 120 and the second liquid collecting tube 130 at the first end 111 of the tube bundle array 110, arranging the first liquid collecting tube 120 and the second liquid collecting tube 130 along the first direction, and setting the third liquid collecting tube 140 at the second end 112 of the tube bundle array 110; thus, the flow direction of the liquid entering the first liquid collecting tube 120 is limited to flowing through a portion of the heat exchange tubes 1101 in the tube bundle array 110. The liquid flows to the third liquid collection pipe 140 and from the third liquid collection pipe 140 along another part of the heat exchange pipe 1101 in the tube bundle array 110 to the second liquid collection pipe 130. On the one hand, this can extend the flow path of the liquid in the heat exchanger 100, which is convenient for cooling and heat dissipation of the liquid. On the other hand, it can increase the heat exchange area of ​​the liquid in the heat exchanger 100. Compared with related technologies, it can reduce the amount of liquid that does not pass through the tube bundle array 110 for heat dissipation and heat dissipation, improve the cooling and heat dissipation effect of the liquid, and improve the cooling and heat dissipation effect of the heat source.

[0124] In some examples, the liquid entering the second liquid collection pipe 130 can enter the liquid cooling system 10 to cool the heat source.

[0125] In some examples, the liquid entering the second collection tube 130 can re-enter the tube array 110 for further heat dissipation and cooling.

[0126] In this embodiment, a tube bundle array 110 is formed by constructing multiple heat exchange tubes 1101 arranged along a first direction. A first liquid collecting pipe 120 is provided at the first end 111 of the tube bundle array 110, and the first liquid collecting pipe 120 is connected to a portion of the heat exchange tubes 1101 in the tube bundle array 110. A second liquid collecting pipe 130, independent of the first liquid collecting pipe 120, is arranged side by side at the first end 111. The second liquid collecting pipe 130 is arranged along the first direction with the first liquid collecting pipe 120 and is connected to another portion of the heat exchange tubes 1101 in the tube bundle array 110. A third liquid collecting pipe 140 is provided at the second end 112 of the tube bundle array 110, and the third liquid collecting pipe 140 is connected to at least the tube bundle array... The heat exchange tube 1101 in column 110 is connected to the first liquid collecting pipe 120 and the second liquid collecting pipe 130. Thus, since the second liquid collecting pipe 130 and the first liquid collecting pipe 120 are independent of each other and are arranged side by side along the first direction, there is no direct connection between the first liquid collecting pipe 120 and the second liquid collecting pipe 130. Therefore, the flow path of the liquid in the heat exchanger is restricted to from the first liquid collecting pipe 120 to a part of the heat exchange tube 1101, and from the third liquid collecting pipe 140 to another part of the heat exchange tube 1101 before it can enter the second liquid collecting pipe 130. This extends the flow path in the heat exchanger and the heat transfer area of ​​the heat exchanger to transfer heat to the outside, thereby improving the heat exchange and cooling effect of the heat exchanger.

[0127] In addition, after the heat exchanger 100 is welded, that is, after the first liquid collecting pipe 120 is welded to the tube bundle array 110, the second liquid collecting pipe 130 is welded to the tube bundle array 110, and the third liquid collecting pipe 140 is connected to the tube bundle array 110, the air tightness test of the heat exchanger 100 can be directly carried out by the air pressure test, which is convenient for testing the sealing performance of the heat exchanger 100 and for quickly locating the leak point.

[0128] In some examples, refer to Figure 4 As shown, the first liquid collecting tube 120 and the second liquid collecting tube 130 have a first preset gap 121 at their ends that are close to each other.

[0129] In some examples, the ends of the first collecting pipe 120 and the second collecting pipe 130 that are close to each other can be in contact. That is, the first preset gap 121 can be the contact gap between the ends of the first collecting pipe 120 and the second collecting pipe 130 that are close to each other.

[0130] In some examples, the ends of the first collecting tube 120 and the second collecting tube 130 that are close to each other can be separated. That is, the ends of the first collecting tube 120 and the second collecting tube 130 that are close to each other can be physically separated.

[0131] In some examples, a second predetermined gap 118 may be present between adjacent heat exchange tubes 1101. (See reference...) Figure 4 The first preset gap 121 can be smaller than the second preset gap 118. Thus, along the arrangement direction of the tube bundle array 110, the first liquid collecting pipe 120 and the second liquid collecting pipe 130 can cover more of the tube bundle array 110, eliminating useless heat exchange pipes 1101 between the first liquid collecting pipe 120 and the second liquid collecting pipe 130, improving the utilization rate of the tube bundle array 110 of the heat exchanger 100, that is, increasing the heat exchange area of ​​the liquid in the heat exchanger 100, and improving the cooling and heat dissipation efficiency.

[0132] In this embodiment, the first liquid collecting pipe 120 and the second liquid collecting pipe 130 are separated at their close ends to form a first preset gap 121. Thus, the first liquid collecting pipe 120 and the second liquid collecting pipe 130 are physically separated from each other. The liquid in the first liquid collecting pipe 120 is limited to flowing from a portion of the heat exchange tubes 1101 of the tube bundle array 110 to the third liquid collecting pipe 140, and from the third liquid collecting pipe 140 along another portion of the heat exchange tubes 1101 of the tube bundle array 110 to the second liquid collecting pipe 130. That is to say, the liquid in the first liquid collecting pipe 120 will not flow directly from the close ends of the first liquid collecting pipe 120 and the second liquid collecting pipe 130 to the second liquid collecting pipe 130. On the one hand, this prolongs the flow path of the liquid in the tube bundle array, and on the other hand, it increases the heat transfer area of ​​the liquid transferring heat outward in the tube bundle array 110, which can improve the cooling effect of the liquid and the cooling and heat dissipation effect of the heat source.

[0133] In some examples, the number of heat exchange tubes 1101 can be specifically set according to the size of the heat exchanger 100, the power of the charging device, etc. In this embodiment of the application, the number of heat exchange tubes 1101 in the tube bundle array 110 is not specifically limited.

[0134] In some examples, refer to Figure 4 As shown, the tube bundle array 110 may include a first sub-tube bundle array 113. The first sub-tube bundle array 113 may be connected between the first liquid collection tube 120 and the third liquid collection tube 140. The first sub-tube bundle array 113 may include at least one heat exchange tube 1101. Liquid can enter from the first liquid collection tube 120 through the first sub-tube bundle array 113 to the third liquid collection tube 140.

[0135] In some examples, refer to Figure 4 As shown, the tube bundle array 110 may include a second sub-tube bundle array 114. The second sub-tube bundle array 114 may be connected between the third liquid collection tube 140 and the second liquid collection tube 130. The second sub-tube bundle array 114 may include at least one heat exchange tube 1101. Liquid enters from the third liquid collection tube 140 through the second sub-tube bundle into the second liquid collection tube 130.

[0136] In other words, in some examples of the embodiments of this application, the first collection tube 120 and the second collection tube 130 can divide the tube bundle array 110 into a first sub-tube bundle array 113 and a second sub-tube bundle array 114. The first sub-tube bundle array 113 is connected to the first collection tube 120, and the second sub-tube bundle array 114 is connected to the second collection tube 130.

[0137] In some examples, refer to Figure 4 As shown, the second liquid collection pipe 130 can be used to connect to the outlet 1002 of the heat exchanger.

[0138] In some examples, the liquid in the second collection pipe 130 can be transported out of the heat exchanger 100 to the circulation pipe of the heat dissipation system.

[0139] In this embodiment, the first sub-tube array 113 is connected between the first liquid collection pipe 120 and the third liquid collection pipe 140, and the second sub-tube array 114 is connected between the third liquid collection pipe 140 and the second liquid collection pipe 130. Thus, since the number of heat exchange tubes 1101 in the tube array 110 is fixed, connecting different numbers of heat exchange tubes 1101 will result in different liquid flow cross-sectional areas. This allows for control of the number of heat dissipation tubes in the first sub-tube array 113 and the second sub-tube array 114, thereby controlling the liquid flow rate in the first sub-tube array 113 and the second sub-tube array 114, and facilitating heat dissipation efficiency of the liquid by controlling the flow rate.

[0140] In some examples, refer to Figure 4 As shown, the number of heat exchange tubes 1101 in the first sub-tube array 113 is the same as that in the second sub-tube array 114.

[0141] In some examples, along the arrangement direction of the tube bundle array 110 (e.g. Figure 4 (in the direction shown by the x-axis), the length of the first liquid collecting tube 120 and the length of the second liquid collecting tube 130 can be the same. This makes it easier to keep the number of heat exchange tubes 1101 in the first sub-tube array 113 and the number of heat exchange tubes 1101 in the second sub-tube array 114 consistent.

[0142] In some examples, the fact that the number of heat exchange tubes 1101 in the first sub-tube array 113 is the same as the number of heat exchange tubes 1101 in the second sub-tube array 114 can mean that the number of heat exchange tubes 1101 in the first sub-tube array 113 is the same as or equal to the number of heat exchange tubes 1101 in the second sub-tube array 114.

[0143] In this embodiment, by setting the number of heat exchange tubes 1101 in the first sub-tube array 113 to be the same as the number of heat exchange tubes 1101 in the second sub-tube array 114, the cross-sectional area of ​​the liquid flowing from the first liquid collection pipe 120 into the tube array 110 is the same as the cross-sectional area of ​​the liquid flowing into the second liquid collection pipe 130. That is, when the number of heat exchange tubes 1101 in the tube array 110 is kept at a preset number, the liquid has a large cross-sectional area in both the first sub-tube array 113 and the second sub-tube array 114, and the liquid can flow at a slower flow rate. In this way, the heat dissipation time of the liquid flowing and dissipating heat in the tube array 110 can be extended, and the pressure drop of the liquid flow can be reduced, thereby reducing the energy consumption of the liquid cooling system 10 and improving the cooling effect on the heat source.

[0144] In some examples, refer to Figure 1 and Figure 2 As shown, the liquid cooling system 10 may include a cooling fan 200. The cooling fan 200 may be located on one side of the heat exchanger 100. (Refer to...) Figure 2 As shown, the cooling fan 200 can run in a second direction (e.g., it could be...). Figure 2 The direction shown by the y-axis is located on one side of the heat exchanger 100. The second direction may intersect with the first direction.

[0145] In some examples, the cooling fan 200 can be configured to drive airflow through the tube bundle array 110 in a second direction.

[0146] In some examples, as the liquid flows within the tube array 110, a cooling fan drives airflow in a second direction across the tube array 110. The airflow can carry away heat from the tube array 110, thereby cooling the liquid within the tube array 110 and improving the cooling effect of the coolant in the liquid cooling system 10.

[0147] In some examples, refer to Figure 1 and Figure 2 As shown, the liquid cooling system 10 may include a power pump 300. The power pump 300 can provide power to the liquid in the liquid cooling system 10, so that the liquid circulates between the heat source and the heat exchanger 100.

[0148] In some examples, the inlet of the power pump 300 can be connected to the outlet 1002 of the heat exchanger 100.

[0149] In some examples, the power pump 300 may include any one of a centrifugal pump, gear pump, piston pump, vane pump, or screw pump.

[0150] In some examples, the power pump 300 may be located on one side of the heat exchanger 100. The power pump 300 can provide power for the fluid flow in the heat dissipation system, compensate for the pressure drop of the liquid flow, ensure the fluid flow rate, and ensure the heat dissipation effect of the heat dissipation system.

[0151] In addition, in this embodiment, a cooling fan 200 is provided on one side of the heat exchanger 100, and the cooling fan 200 is arranged along the second direction on one side of the tube bundle array 110. Thus, when liquid flows through the tube bundle array 110, the cooling fan 200 can provide cool air from one side of the heat exchanger 100 to the other side of the tube bundle array 110 along the second direction as a heat exchange medium to remove heat from the tube bundle array 110, thereby promptly removing heat from the tube bundle array 110. By providing a power pump 300 in the second direction, the power pump 300 can provide power for the liquid flow in the heat dissipation system, compensating for the pressure drop of the liquid flow, ensuring the liquid flow rate, and ensuring the heat dissipation effect.

[0152] Figure 5 This is another frame structure diagram of the heat exchanger in the charging device provided in the embodiments of this application.

[0153] In some examples, refer to Figure 5 As shown, the number of heat exchange tubes 1101 in the first sub-tube array 113 and the number of heat exchange tubes 1101 in the second sub-tube array 114 can be different.

[0154] In some examples, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be a first number.

[0155] In some examples, the number of heat exchange tubes 1101 in the second sub-tube array 114 can be a second number.

[0156] In some examples, one of the first quantity and the second quantity can be greater than the other.

[0157] In some examples, refer to Figure 5 As shown, the second quantity can be greater than the first quantity. That is, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be less than the number of heat exchange tubes 1101 in the second sub-tube array 114. Along the second direction, the power pump 300 can be located on one side of the first sub-tube array 113.

[0158] In some examples, along the second direction, the power pump 300, the cooling fan 200, and the heat exchanger 100 can be arranged side by side. The power pump 300 and the cooling fan 200 can be located on the same side of the heat exchanger 100. The power pump 300 and the cooling fan 200 can be located on different sides of the heat exchanger 100.

[0159] In some examples, the first quantity can be greater than the second quantity. That is, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be greater than the number of heat exchange tubes 1101 in the second sub-tube array 114. Along the second direction, the power pump 300 can be located on one side of the second sub-tube array 114.

[0160] In this embodiment, the number of heat exchange tubes 1101 in the first sub-tube bundle array 113 is different from the number of heat exchange tubes 1101 in the second sub-tube bundle array 114. Thus, the cross-sectional area of ​​liquid flow in the first sub-tube bundle array 113 is different from that in the second sub-tube bundle array 114. Consequently, the flow velocity of liquid in the first sub-tube bundle array 113 is different from that in the second sub-tube bundle array 114, resulting in different heat dissipation efficiencies between the two arrays. This facilitates the arrangement of other components in the heat dissipation system (e.g., the power pump 300 and the liquid delivery pipe 401), improves the space utilization of the heat dissipation system, and reduces the overall volume of the heat dissipation system.

[0161] In this embodiment, the number of heat exchange tubes 1101 in the first sub-tube bundle array 113 and the second sub-tube bundle array 114 are set such that the power pump 300 is positioned on one side of the sub-tube bundle array 113 and the sub-tube bundle array 114 with fewer heat exchange tubes 1101. Thus, because the flow cross-sectional area is smaller on the sub-tube bundle array 113 and the sub-tube bundle array 114 with fewer heat exchange tubes 1101, the liquid flow rate is faster and the heat dissipation efficiency is higher. However, as the flow rate increases, the flow resistance increases, and the pressure on the heat dissipation system decreases. To reduce the heat exchange tube count, the power pump 300 is positioned on one side of the first sub-tube array 113 and the second sub-tube array 114, where the number of heat exchange tubes 1101 is smaller. In this way, although the power pump 300 will affect the airflow corresponding to the first sub-tube array 113, the high heat dissipation efficiency of the first sub-tube array 113 will not affect the overall heat dissipation efficiency, thus ensuring the heat dissipation efficiency of the heat dissipation system. In this way, by placing the power pump 300 on the other side of the first sub-tube array 113, the space required by the liquid cooling heat dissipation system 10 can be reduced.

[0162] In some examples, refer to Figure 2 As shown, the liquid cooling system 10 may include a liquid storage tank 400. The liquid storage tank 400 may be located in the heat exchanger 100.

[0163] In some examples, the liquid storage tank 400 may be located above the heat exchanger 100.

[0164] In some configurations, the liquid storage tank 400 can be located below the heat exchanger 100.

[0165] In some examples, refer to Figure 2 As shown, the liquid cooling system 10 may include a liquid inlet pipe 401. One end of the liquid inlet pipe 401 may be connected to the liquid storage tank 400. The other end of the liquid inlet pipe 401 may be connected to the liquid inlet of the power pump 300.

[0166] In some examples, where the first quantity is less than the second quantity, the infusion tube 401 may be located on one side of the first sub-tube array 113.

[0167] In some examples, where the first quantity is greater than the second quantity, the infusion tube 401 can be located on one side of the second sub-tube array 114.

[0168] In this embodiment of the application, by placing the infusion tube 401 on the other side of the first sub-tube bundle array 113, the impact of the infusion tube 401 on the heat dissipation efficiency is reduced, which can ensure the overall heat dissipation efficiency of the heat dissipation system and reduce the space required by the heat dissipation system.

[0169] In some examples, refer to Figure 1 and Figure 2As shown, the liquid cooling system 10 may include a controller 500.

[0170] In some examples, controller 500 may include a central processing unit (CPU).

[0171] In some examples, controller 500 may include a microcontroller unit (MCU).

[0172] In some examples, controller 500 may include programmable logic controller 500 (PLC).

[0173] In some examples, controller 500 may include a field-programmable gate array (FPGA).

[0174] It is understood that in some examples of embodiments of this application, the specific type of controller 500 is shown only as a specific example and is not a limitation on the type of controller 500.

[0175] In some examples, the controller 500 controls the operating power of the cooling fan 200 based on the inlet temperature of the first liquid collection pipe 120 inlet, and controls the operating power of the power pump 300 based on the temperature and pressure of the power pump 300 outlet.

[0176] In other words, in some examples of the embodiments of this application, a temperature sensor may be provided at the inlet of the first liquid collection pipe 120. The temperature sensor can collect the temperature of the inlet of the first liquid collection pipe 120 and report it to the controller 500.

[0177] In some examples, the outlet of the power pump 300 may be equipped with a temperature sensor and a pressure sensor. The temperature sensor can collect the temperature of the outlet of the power pump 300 and report it to the controller 500. In addition, the pressure sensor can collect the pressure of the outlet of the power pump 300 and report it to the controller 500.

[0178] In some examples, when the temperature at the inlet of the first liquid collection pipe 120 is high and the temperature at the outlet of the power pump 300 is high, the operating power of the cooling fan 200 can be increased.

[0179] In some examples, when the outlet pressure of the power pump 300 is low and the outlet temperature is high, the operating power of the cooling fan 200 and the operating power of the power pump 300 can be increased.

[0180] In this embodiment, the controller 500 controls the operating power of the cooling fan and the power pump 300, which can improve the effective use of energy and increase energy utilization efficiency.

[0181] Figure 6 This is a schematic diagram of another frame structure of the heat exchanger in the charging device provided in the embodiments of this application.

[0182] In some examples, refer to Figure 6 As shown, the heat exchanger 100 may include a fourth liquid collecting pipe 150. The fourth liquid collecting pipe 150 may be arranged independently of the third liquid collecting pipe 140 and side by side at the second end 112. The fourth liquid collecting pipe 150 and the third liquid collecting pipe 140 may be arranged along a first direction.

[0183] In some examples, the relationship between the fourth collection tube 150 and the third collection tube 140 may be the same as, similar to or similar to the relationship between the first collection tube 120 and the second collection tube 130 in the foregoing embodiments of this application. For details, please refer to the detailed description of the foregoing embodiments of this application. The embodiments of this application will not repeat the details here.

[0184] In some examples, tube array 110 may include a third sub-tube array 115. The third sub-tube array 115 may include at least one heat exchange tube 1101. The third sub-tube array 115 may be connected between the second liquid collector 130 and the fourth liquid collector 150. Liquid enters from the second liquid collector 130 through the third sub-tube array 115 into the fourth liquid collector 150.

[0185] In other words, in this embodiment of the application, the first liquid collection tube 120, the second liquid collection tube 130, the third liquid collection tube 140 and the fourth liquid collection tube 150 can divide the tube bundle array 110 into a first sub-tube bundle array 113, a second sub-tube bundle array 114 and a third sub-tube bundle array 115.

[0186] In some examples, at least two of the first sub-tube array 113, the second sub-tube array 114, and the third sub-tube array 115 have the same number of heat exchange tubes 1101.

[0187] In some examples, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be the same as the number of heat exchange tubes 1101 in the second sub-tube array 114.

[0188] In some examples, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be the same as the number of heat exchange tubes 1101 in the third sub-tube array 115.

[0189] In some examples, the number of heat exchange tubes 1101 in the second sub-tube array 114 can be the same as the number of heat exchange tubes 1101 in the third sub-tube array 115.

[0190] In some examples, the number of heat exchange tubes 1101 in the first sub-tube array 113, the second sub-tube array 114, and the third sub-tube array 115 can be the same.

[0191] In this embodiment of the application, a fourth liquid collecting pipe 150, which is independent of the third liquid collecting pipe 140, is arranged side by side at the second end 112 of the tube bundle array 110 and the third liquid collecting pipe 140. The fourth liquid collecting pipe 150 and the third liquid collecting pipe 140 are arranged along a first direction. In this way, the fourth liquid collecting pipe 150 can separate a third sub-tube bundle array 115 from the tube bundle array 110 with a preset number of heat exchange tubes 1101. The third sub-tube bundle array 115 is connected between the second liquid collecting pipe 130 and the fourth liquid collecting pipe 150. In other words, the liquid in the second liquid collection tube 130 can flow to the fourth liquid collection tube 150 through the third sub-tube bundle array 115. Thus, the tube bundle array 110 is divided into the first sub-tube bundle array 113, the second sub-tube bundle array 114, and the third sub-tube bundle array 115. This reduces the flow cross-sectional area of ​​the liquid in the first sub-tube bundle array 113, the second sub-tube bundle array 114, and the third sub-tube bundle array 115, increases the flow velocity of the liquid, and increases the contact frequency between the liquid and the tube wall of the heat exchange tube 1101. This facilitates the formation of turbulence in the tube bundle array 110, weakens the low-velocity region where the liquid is in close contact with the tube wall, reduces thermal resistance, accelerates heat transfer, improves heat transfer efficiency, and is beneficial for cooling and dissipating heat from the heat source.

[0192] In some examples, when configuring the power pump 300 and the liquid inlet pipe 401, the power pump 300 and the liquid inlet pipe 401 can be positioned on the side of the array with the fewest heat exchange tubes 1101 among the first sub-tube array 113, the second sub-tube array 114, and the third sub-tube array 115. This reduces the impact of the power pump 300 and the liquid inlet pipe 401 on the airflow, ensuring the cooling efficiency of the liquid cooling system 10.

[0193] In some examples, refer to Figure 6 As shown, the heat exchanger 100 may include a fifth liquid collecting pipe 160. The fifth liquid collecting pipe 160 is independently and side by side with the first liquid collecting pipe 120 and the second liquid collecting pipe 130 at the first end 111.

[0194] In some examples, tube array 110 may include a fourth sub-tube array 116. The fourth sub-tube array 116 may include at least one heat exchange tube 1101. The fourth sub-tube array 116 may be connected between the fourth liquid collector 150 and the fifth liquid collector 160. Liquid enters from the fourth liquid collector 150 through the fourth sub-tube array to the fifth liquid collector 160.

[0195] In some examples, the fifth collection tube 160 may be arranged along the first collection tube 120 and the second collection tube 130 in the first direction.

[0196] In some examples, refer to Figure 6 As shown, the number of heat exchange tubes 1101 in the first sub-tube array 113 can be equal to the number of heat exchange tubes 1101 in the third sub-tube array 115.

[0197] In some examples, the number of heat exchange tubes 1101 in the second sub-tube array 114 can be equal to the number of heat exchange tubes 1101 in the fourth sub-tube array 116.

[0198] In some examples, the number of heat exchange tubes 1101 in the second sub-tube array 114 can be 1.5 times the number of heat tubes in the first sub-tube array 113. That is, the flow rate of the liquid in the first sub-tube array 113 can be 1.5 times the flow rate of the liquid in the second sub-tube array 114.

[0199] In some examples, the heat exchange tube 1101 of the fourth sub-tube array 116 may be along a second direction (e.g., the heat exchange tube 1101 of at least one of the first sub-tube array 113 and the second sub-tube array 114). Figure 2 The direction is indicated by the y-axis. The second direction can intersect with the first direction.

[0200] In some examples, the heat exchange tubes 1101 of the fourth sub-tube array 116 can be arranged along the second direction with the heat exchange tubes 1101 of the first sub-tube array 113. The fifth liquid collection tube 160 can be arranged along the second direction with the first liquid collection tube 120.

[0201] In some examples, the heat exchange tubes 1101 of the fourth sub-tube array 160 can be arranged along the second direction with the heat exchange tubes 1101 of the second sub-tube array 114. The fifth liquid collection tube 160 can be arranged along the second direction with the second liquid collection tube 120.

[0202] In some examples, the heat exchange tubes 1101 of the fourth sub-tube array 116 can be arranged along a second direction with the heat exchange tubes 1101 of the first sub-tube array 113 and the heat exchange tubes 1101 of the second sub-tube array 114. Along the second direction, the fifth liquid collecting tube 160 is arranged on one side of the first liquid collecting tube 120 and the second liquid collecting tube 130.

[0203] In this embodiment of the application, by setting a fifth liquid collecting pipe 160 that is independent of the first liquid collecting pipe 120 and the second liquid collecting pipe 130 at the first end 111, a fourth sub-tube bundle array 116 can be separated from the tube bundle array 110 with a preset number of heat exchange tubes 1101. The fourth sub-tube bundle array 116 is connected between the fourth liquid collecting pipe 150 and the fifth liquid collecting pipe 160. In other words, the liquid in the fourth liquid collection tube 150 can flow to the fifth liquid collection tube 160 through the fourth sub-tube array 116. In this way, on the one hand, the flow path of the liquid in the tube array 110 can be increased, and the heat exchange contact time between the liquid and the cold medium can be extended. On the other hand, the tube array 110 is divided into the first sub-tube array 113, the second sub-tube array 114, the third sub-tube array 115 and the fourth sub-tube array 116, which can reduce the flow cross-sectional area of ​​the liquid in the first sub-tube array 113, the second sub-tube array 114, the third sub-tube array 115 and the fourth sub-tube array 116, increase the flow velocity of the liquid, and increase the contact frequency between the liquid and the tube wall of the heat exchange tube 1101. This facilitates the formation of turbulence in the tube array 110, weakens the low-velocity region where the liquid is close to the tube wall, reduces thermal resistance, accelerates heat transfer, improves heat transfer efficiency, and is beneficial for cooling and dissipating heat from the heat source.

[0204] In addition, by adjusting the number of heat exchange tubes 1101 in the first sub-tube array 113, the second sub-tube array 114, the third sub-tube array 115, and the fourth sub-tube array 116, the liquid flow rates in the first sub-tube array 113, the second sub-tube array 114, the third sub-tube array 115, and the fourth sub-tube array 116 can be different. This makes it easier to set up other components of the heat exchange system, reduces the impact of other components on the flow rate of the cold medium on the heat exchange efficiency, and improves the cooling and heat dissipation effect on the heat source.

[0205] In addition, in some examples of embodiments of this application, the number of heat exchange tubes 1101 in the first sub-tube bundle array 113, the second sub-tube bundle array 114, the third sub-tube bundle array 115, and the fourth sub-tube bundle array 116 are set to be different, so that the liquid flow velocity in the tube bundle array 110 is non-uniform. In this way, other components (such as the power pump 300, the infusion pipe 401, or the controller 500 described in detail in the foregoing embodiments of this application) can be set on one side of the region with a higher flow velocity (such as the region corresponding to the first sub-tube bundle array 113 or the third sub-tube bundle array 115). Although this will cause some loss of air volume, the heat transfer efficiency is higher in the region with a higher liquid flow velocity, which can compensate for the loss of heat transfer performance caused by the influence of air volume. In addition, in regions with slower flow rates (such as the regions corresponding to the second sub-tube array 114 and the fourth sub-tube array 116), the slower liquid flow rate can mitigate the effect of increased flow resistance caused by increased flow rate, thereby reducing the pressure drop of the liquid cooling system 10 and saving energy consumption of the power pump 300.

[0206] Figure 7 This is another structural schematic diagram of the heat exchanger in the charging device provided in the embodiments of this application.

[0207] In some examples, refer to Figure 7 As shown, the heat exchanger 100 may include a sixth liquid collection pipe 170. The sixth liquid collection pipe 170 is independently and side by side with the third liquid collection pipe 140 and the fourth liquid collection pipe 150 at the second end 112.

[0208] Figure 8 This is a schematic diagram of another frame structure of the heat exchanger in the charging device provided in the embodiments of this application.

[0209] In some examples, tube array 110 may include a fifth sub-tube array 117. The fifth sub-tube array 117 may include at least one heat exchange tube 1101. The fifth sub-tube array 117 may be connected between the fifth liquid collector 160 and the sixth liquid collector 170. Liquid enters from the fifth liquid collector 160 through the fifth sub-tube array 117 into the sixth liquid collector 170.

[0210] In other words, in some examples of the embodiments of this application, the tube bundle array 110 with a preset number of heat exchange tubes 1101 can be divided into a first sub-tube bundle array 113, a second sub-tube bundle array 114, a third sub-tube bundle array 115, a fourth sub-tube bundle array 116, and a fifth sub-tube bundle array 117.

[0211] In some examples, the number of heat exchange tubes 1101 in the first sub-tube array 113, the second sub-tube array 114, the third sub-tube array 115, the fourth sub-tube array 116, and the fifth sub-tube array 117 is the same. Thus, each sub-tube array 110 has fewer heat exchange tubes 1101, meaning the flow cross-sectional area of ​​the liquid in each sub-tube array 110 is smaller. Compared to dividing the tube array 110 into two sub-tube arrays 110 (first sub-tube array 113 and second sub-tube array 114), dividing the tube array 110 into five sub-tube arrays 110 allows the liquid flow velocity within each sub-tube array 110 to be 2.5 times that of the two sub-tube arrays 110, thereby increasing the liquid flow velocity within the heat exchange tubes 1101.

[0212] In this embodiment, a sixth liquid collection pipe 170 is provided at the second end 112, parallel to and independent of the third liquid collection pipe 140 and the fourth liquid collection pipe 150. Thus, the fifth sub-tube bundle array 117 of the tube bundle array 110 is connected between the fifth liquid collection pipe 160 and the sixth liquid collection pipe 170, allowing the liquid in the fifth liquid collection pipe 160 to flow from the fifth sub-tube bundle array 117 to the sixth liquid collection pipe 170. Furthermore, the number of heat exchange tubes 1101 in the first sub-tube bundle array 113, the second sub-tube bundle array 114, the third sub-tube bundle array 115, the fourth sub-tube bundle array 116, and the fifth sub-tube bundle array 117 is set to be the same. This increases the flow velocity of the liquid in the tube bundle array 110, thereby increasing the degree of turbulence, reducing thermal resistance, and improving heat transfer efficiency.

[0213] In addition, the increase in liquid flow rate can reduce the residence time of liquid on the wall of heat exchange tube 1101, which can reduce the probability of fouling formation, thereby reducing thermal resistance and improving heat transfer efficiency.

[0214] In addition, with the same heat transfer area (tube bundle array 110), increasing the liquid flow rate can shorten the time for the liquid to pass through the heat exchange tube 1101, reduce the heat retention in the heat exchange tube 1101, accelerate the entire heat exchange process, and improve the cooling and heat dissipation effect on the heat source.

[0215] In addition, the tube bundle array 110 is divided into five sub-tube bundle arrays 110. The liquid needs to flow through each sub-tube bundle array 110 in sequence, which prolongs the flow of the liquid in the heat exchanger 100 and is conducive to the full heat dissipation and cooling of the liquid.

[0216] In some examples, refer to Figure 4 As shown, there is a second preset gap 118 between adjacent heat exchange tubes 1101 in the tube bundle array 110. Heat dissipation fins 119 are provided in the second preset gap 118, and the heat dissipation fins 119 are thermally connected to the heat exchange tubes 1101.

[0217] In some examples, the heat sink fins 119 can be any of aluminum foil, copper foil, or gold foil.

[0218] In some examples, the heat dissipation fins 119 on two adjacent heat exchange tubes 1101 can be arranged crosswise.

[0219] In some examples, there may be a certain gap between adjacent heat dissipation fins 119 to facilitate the flow of air through the heat dissipation fins 119 and carry away the heat on the heat dissipation fins 119.

[0220] In this embodiment, a second preset gap 118 is provided between adjacent heat exchange tubes 1101, and heat dissipation fins 119 are provided within the second preset gap 118. The heat dissipation fins 119 are thermally connected to the heat exchange tubes 1101. In this way, the heat carried by the liquid in the heat exchange tubes 1101 can be transferred to the heat dissipation fins 119 for heat dissipation, increasing the heat dissipation area and improving the heat dissipation efficiency, that is, improving the cooling efficiency of the heat source.

[0221] The embodiments described above are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A heat exchanger, characterized in that, include: The tube array (110) includes a plurality of heat exchange tubes (1101) arranged along a first direction; the tube array (110) includes a first end (111) and a second end (112) arranged opposite to each other; A first liquid collecting pipe (120) is provided at the first end (111), and the first liquid collecting pipe (120) is connected to a portion of the heat exchange tubes (1101) of the tube bundle array (110); the first liquid collecting pipe (120) is used to communicate with the liquid inlet (1001) of the heat exchanger. The second liquid collecting pipe (130) is independent of the first liquid collecting pipe (120). The second liquid collecting pipe (130) and the first liquid collecting pipe (120) are arranged side by side at the first end (111) along the first direction. The second liquid collecting pipe (130) is connected to another part of the heat exchange tubes (1101) in the tube bundle array (110). A third liquid collecting tube (140) is disposed at the second end (112), and the third liquid collecting tube (140) is at least connected to the heat exchange tube (1101) in the tube bundle array (110) that is connected to the first liquid collecting tube (120) and the second liquid collecting tube (130).

2. The heat exchanger according to claim 1, characterized in that, There is a first preset gap (121) between the ends of the first liquid collecting tube (120) and the second liquid collecting tube (130) that are close to each other.

3. The heat exchanger according to claim 1, characterized in that, The tube array (110) includes: The first sub-tube array (113) includes at least one heat exchange tube (1101), and the first sub-tube array (113) is connected between the first liquid collection tube (120) and the third liquid collection tube (140); The second sub-tube array (114) includes at least one heat exchange tube (1101), and the second sub-tube array (114) is connected between the third liquid collection tube (140) and the second liquid collection tube (130); the second liquid collection tube (130) is used to communicate with the liquid outlet (1002) of the heat exchanger.

4. The heat exchanger according to claim 3, characterized in that, The number of heat exchange tubes (1101) in the first sub-tube array (113) is the same as the number of heat exchange tubes (1101) in the second sub-tube array (114).

5. The heat exchanger according to claim 3, characterized in that, The heat exchanger (100) further includes a fourth liquid collecting pipe (150), which is independently arranged side-by-side with the third liquid collecting pipe (140) at the second end (112); the fourth liquid collecting pipe (150) and the third liquid collecting pipe (140) are arranged along the first direction; the tube bundle array (110) further includes: The third sub-tube array (115) includes at least one of the heat exchange tubes (1101), and the third sub-tube array (115) is connected between the second liquid collection tube (130) and the fourth liquid collection tube (150); The number of heat exchange tubes (1101) is the same in at least two of the first sub-tube array (113), the second sub-tube array (114), and the third sub-tube array (115).

6. The heat exchanger according to claim 5, characterized in that, The heat exchanger (100) further includes a fifth liquid collecting pipe (160), which is independently and side-by-side with the first liquid collecting pipe (120) and the second liquid collecting pipe (130) at the first end (111). The tube bundle array (110) further includes: The fourth sub-tube array (116) includes at least one of the heat exchange tubes (1101), and the fourth sub-tube array (116) is connected between the fourth liquid collection tube (150) and the fifth liquid collection tube (160).

7. The heat exchanger according to claim 6, characterized in that, The heat exchanger (100) further includes a sixth liquid collecting pipe (170), which is independently and side-by-side with the third liquid collecting pipe (140) and the fourth liquid collecting pipe (150) at the second end (112); the tube bundle array (110) further includes: The fifth sub-tube array (117) includes at least one of the heat exchange tubes (1101), and the fifth sub-tube array (117) is connected between the fifth liquid collection tube (160) and the sixth liquid collection tube (170); The number of heat exchange tubes (1101) in the first sub-tube array (113), the second sub-tube array (114), the third sub-tube array (115), the fourth sub-tube array (116), and the fifth sub-tube array (117) is the same.

8. A liquid cooling heat dissipation system, characterized in that, include: The heat exchanger (100) according to any one of claims 1-7; A cooling fan (200) is located on one side of the heat exchanger (100), and the cooling fan (200) is configured to drive airflow through the heat exchanger (100) in a second direction; the second direction intersects the first direction; A power pump (300) is located on one side of the heat exchanger (100) along the second direction, and the inlet of the power pump (300) is connected to the outlet of the heat exchanger (100).

9. The liquid cooling heat dissipation system according to claim 8, characterized in that, The number of heat exchange tubes (1101) in the first sub-tube bundle array (113) of the heat exchanger (100) is different from the number of heat exchange tubes (1101) in the second sub-tube bundle array (114); along the second direction, the power pump (300) is located on one side of the one with fewer heat exchange tubes (1101) in the first sub-tube bundle array (113) and the second sub-tube bundle array (114).

10. A charging device, characterized in that, include: The liquid cooling heat dissipation system (10) as described in claim 8 or 9, and The charging gun (20) has a liquid cooling pipe. The outlet of the power pump (300) of the liquid cooling system (10) is connected to the liquid cooling pipe. The liquid cooling pipe is connected to the first liquid collection pipe (120) of the liquid cooling system (10).

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