Heat management system and new energy mine truck

Abstract

The utility model belongs to vehicle heat management technical field discloses a kind of heat management system and new energy mine truck.The heat management system includes expansion water tank, water cooling unit, first exhaust component and second exhaust component;Water cooling unit includes water pump, and water pump operation can drive antifreeze circulating flow;First exhaust component is used to discharge air to inside expansion water tank;Second exhaust component can cut off or communicate the water inlet of water pump and the second outlet of target piece to be cooled;And for the first time when expansion water tank is filled with antifreeze, second exhaust component can cut off water pump and target piece to be cooled, so that air and antifreeze are discharged to inside expansion water tank by second exhaust component.Can directly cut off the passage of air into water pump, avoid the problem of air binding of water pump;Without multiple exhaust, high working efficiency;And antifreeze will not be wasted;While it can improve the one-time filling rate of antifreeze in expansion water tank.

Description

Technical Field

[0001] This utility model relates to the field of vehicle thermal management technology, and in particular to a thermal management system and a new energy mining truck. Background Technology

[0002] Currently, if air cannot be expelled from the thermal management system (which uses circulating antifreeze to cool the target components) of new energy mining trucks (mining transport vehicles that use electric drive systems to replace traditional fuel power), the following problems will occur: 1) Since the total volume of the entire thermal management system is fixed, if air cannot be expelled, the antifreeze cannot circulate, resulting in insufficient antifreeze flow throughout the thermal management system. This leads to high temperatures in the target components to be cooled (such as the battery module, motor module, or electronic control module of the new energy mining truck, which are heat-generating elements that continuously generate heat after being powered on), resulting in poor heat dissipation. 2) If a large amount of air enters the water pump during the antifreeze circulation process, it will cause air binding, causing the water pump to run dry and unable to drive the antifreeze to circulate normally. Specifically, air binding refers to the situation where a large amount of air enters the casing of the centrifugal water pump, preventing the impeller from driving the air during rotation. This results in the impeller doing useless work and failing to drive the antifreeze to circulate throughout the thermal management system. The prerequisites for the normal operation of the thermal management system are: 1) normal antifreeze circulation; 2) sufficient antifreeze flow.

[0003] Therefore, such as Figure 1 As shown, an exhaust port 2' is opened at the highest point of the target component 1' to be cooled, and an exhaust pipe 3' connects the exhaust port 2' to the expansion tank 4', so that the air (containing a small amount of antifreeze) in the thermal management system is discharged into the expansion tank 4' through the exhaust port 2' and the exhaust pipe 3', thereby venting the air to the atmosphere through the expansion tank 4'. The main direction of air discharge is as follows: Figure 1 As shown by arrow A1, the main circulation direction of the antifreeze is as follows: Figure 1 As shown by arrow A2 in the diagram.

[0004] However, the above-mentioned method of air exhaust has the following disadvantages: such as Figure 1As shown, during the process of air being discharged into the expansion tank 4' through the exhaust port 2' and exhaust pipe 3', the antifreeze (containing a certain amount of air) after cooling the target component 1' will return to the water pump 5' through the water inlet main pipe 6' and inlet 61'; that is, some air will return into the water pump 5'. On the one hand, since there are two air flow paths, the degassing efficiency will be low, and multiple cycles are required to discharge the air that has returned into the water pump 5' to the expansion tank 4'. On the other hand, when antifreeze is first added to the entire thermal management system through the expansion tank 4', if a large amount of air remains in the thermal management system, and as the water pump 5' continues to run, more and more air will accumulate in the water pump 5', eventually causing air binding in the water pump 5' (the antifreeze cannot circulate normally), and the heat dissipation of the entire thermal management system will fail. Moreover, once "air binding" occurs, there is almost no way to remove the air binding without dismantling the pipeline of the thermal management system.

[0005] Furthermore, based on the actual structural settings, working conditions, and layout requirements, the diameter of the pipes in the thermal management system of new energy mining trucks is smaller than that of the pipes used for heat dissipation in traditional internal combustion engines. That is, the diameter of the pipes in internal combustion engines is generally greater than 80mm, while the diameter of the pipes in new energy mining trucks is generally only 25mm. Therefore, it makes exhausting the entire thermal management system more difficult.

[0006] To solve the above problems, such as Figure 2 As shown, in Figure 1 Based on the structure shown, an improvement is made by adding an air vent valve 7' to both the inlet 61' and outlet 62' of the water pump 5'. After air binding occurs in the water pump 5', both air vent valves 7' are opened simultaneously to directly release the air (containing some antifreeze) inside the water pump 5' into the atmosphere, ensuring that the water pump 5' is filled with antifreeze and free of air, thus releasing the air binding state of the water pump 5'. The main direction of air discharge is as follows... Figure 2 As shown by arrow B1, the main circulation direction of the antifreeze is as follows: Figure 2 As shown by arrow B2 in the image.

[0007] However, the above method of opening the exhaust valve 7' has the following problems: such as Figure 2 As shown, 1) the air vent valve 7' is used to open after an air binding failure occurs, and is a remedial measure; 2) the air in the water pump 5' needs a certain process and time to be discharged through the air vent valve 7', that is, multiple air venting operations are required, which is cumbersome, time-consuming and has low work efficiency; 3) each air venting operation will be accompanied by a large amount of antifreeze being discharged directly through the air vent valve 7', causing antifreeze leakage and waste. Utility Model Content

[0008] The purpose of this utility model is to provide a thermal management system and a new energy mining card that can directly cut off the air passage into the water pump, avoiding air binding problems in the water pump; it does not require multiple venting, has high working efficiency; and does not waste antifreeze; at the same time, it can improve the one-time filling rate of antifreeze in the expansion tank.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] Thermal management system, including:

[0011] Expansion tank, which is used to fill antifreeze;

[0012] A water-cooled unit includes a water pump. The first outlet of the expansion tank and the second outlet of the target component to be cooled are respectively connected to the inlet of the water pump. The outlet of the water pump is connected to the first inlet of the target component to be cooled. The operation of the water pump can drive the antifreeze to circulate.

[0013] A first exhaust assembly is connected between the second outlet of the target component to be cooled and the second inlet of the expansion tank. The first exhaust assembly is used to exhaust air into the expansion tank.

[0014] The second exhaust assembly has one end connected between the water pump inlet and the second outlet of the target component to be cooled, and the other end connected to the third inlet of the expansion tank. The second exhaust assembly can isolate or connect the water pump inlet and the second outlet of the target component to be cooled.

[0015] When the expansion tank is filled with antifreeze for the first time, the second venting assembly disconnects the water pump inlet from the second outlet of the target component to be cooled, so that air and antifreeze at the second outlet of the target component to be cooled can be discharged into the expansion tank through the second venting assembly.

[0016] As an optional solution, the water pump inlet is connected to the second outlet of the target component to be cooled via a main water inlet pipeline, and one end of the first exhaust assembly, one end of the second exhaust assembly, and the first outlet of the expansion tank are respectively connected to the main water inlet pipeline.

[0017] As an optional solution, the first exhaust assembly includes:

[0018] The exhaust port is located on the main water inlet pipe and at the highest point of the target component to be cooled.

[0019] The first exhaust pipe has one end connected to the exhaust port and the other end connected to the second inlet of the expansion tank.

[0020] As an optional solution, the second exhaust assembly includes:

[0021] An exhaust device is connected to the main water inlet pipeline, and the exhaust device is used to isolate or connect the main water inlet pipeline.

[0022] The second exhaust pipe has one end connected to the side branch interface of the exhaust component and the other end connected to the third inlet of the expansion tank.

[0023] When the venting component disconnects the main water inlet pipeline, the air and antifreeze at the second outlet of the target component to be cooled can be discharged into the expansion tank through the second venting pipe; when the venting component connects to the main water inlet pipeline, the antifreeze at the second outlet of the target component to be cooled can flow back into the water pump through the main water inlet pipeline.

[0024] As an optional solution, the venting component disconnects the main water inlet pipeline for a preset time and then reconnects the main water inlet pipeline, the preset time being 20±3 minutes.

[0025] As an optional solution, the exhaust component includes:

[0026] A ball valve is connected to the main water inlet pipe, and the ball valve is used to control the isolation and connection of the main water inlet pipe;

[0027] A three-way connector, wherein the inlet and outlet ports of the three-way connector are connected in series on the main water inlet pipeline, and the ball valve is located downstream of the three-way connector, and one end of the second vent pipe is connected to the side port of the three-way connector.

[0028] As an optional solution, the distance between the ball valve and the water pump inlet is less than a first preset distance.

[0029] As an optional solution, the distance between the ball valve and the outlet of the tee joint is less than the second preset distance.

[0030] As an optional solution, the tee connector includes:

[0031] The connector body is part of the main water inlet pipeline;

[0032] A side branch connector, one end of which is welded to the main water inlet pipeline, and the other end of which is connected to the second exhaust pipe;

[0033] Furthermore, the ball valve is welded to the main water inlet pipe, making the venting component and the main water inlet pipe an integral structure.

[0034] The new energy mining truck includes a target component to be cooled and a thermal management system as described above. The target component to be cooled includes multiple heating elements connected in series and / or in parallel. The thermal management system is used to cool and dissipate heat from each of the heating elements.

[0035] The beneficial effects of this utility model are:

[0036] This utility model's thermal management system connects the first outlet of the expansion tank and the second outlet of the target component to the inlet of a water pump, and the outlet of the water pump to the first inlet of the target component. This allows the water pump to circulate antifreeze between the pump and the target component, using the antifreeze as a heat exchange medium to transfer heat generated by the target component to the antifreeze, thus cooling the target component and ensuring it operates within a reasonable temperature range. Simultaneously, a first exhaust assembly is connected between the second outlet of the target component and the second inlet of the expansion tank. The air venting assembly is used to expel air (containing a small amount of antifreeze) into the expansion tank; and one end of the second air venting assembly is connected between the water pump inlet and the second outlet of the target component to be cooled, while the other end is connected to the third inlet of the expansion tank. This allows the second air venting assembly to isolate the water pump inlet from the second outlet of the target component when the expansion tank is first filled with antifreeze, enabling the air at the second outlet of the target component and the large amount of antifreeze remaining after cooling the target component to be discharged into the expansion tank via the second air venting assembly. In other words, the aforementioned first and second air venting assemblies, working in tandem, can... This ensures that the air in the thermal management system has only one outlet during the entire venting process (i.e., it can only be vented into the expansion tank). Therefore, air will essentially not enter the water pump during the venting process, resulting in the following effects: 1) This venting method will not cause air binding in the water pump; it is a proactive venting method, a directional venting method taken before air binding occurs in the water pump; 2) During the air venting process, the air (including a large amount of antifreeze after cooling the target component) entering the water pump is directly cut off, ensuring that all water intake to the water pump comes from the expansion tank, and the air outlet is also singular, only able to vent into the expansion tank. The expansion tank ensures that air in the entire thermal management system has nowhere to escape and can only be discharged through a single channel (towards the expansion tank), eliminating the need for multiple venting operations. The venting process is simple and singular, saving venting time and thus improving work efficiency; 3) During the entire venting process, both air and antifreeze flow only into the expansion tank, thus preventing antifreeze leakage and waste; 4) As the air discharged into the expansion tank is continuously released into the atmosphere, the antifreeze level in the expansion tank will drop significantly, requiring timely replenishment of antifreeze, thereby improving the one-time filling rate of antifreeze in the expansion tank.

[0037] The new energy mining truck of this utility model, by including the above-mentioned thermal management system, can improve the directional discharge effect and discharge efficiency of air in the thermal management system, thereby ensuring the normal circulation and sufficient flow of antifreeze in the thermal management system, and thus ensuring the cooling and heat dissipation effect of the thermal management system on the target components to be cooled, so as to ensure the normal operation performance of the target components to be cooled and the entire new energy mining truck. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a thermal management system (without an exhaust valve) in the prior art. Figure 1 ;

[0039] Figure 2 This is a schematic diagram of a thermal management system (equipped with an exhaust valve) in the prior art. Figure 2 ;

[0040] Figure 3 This is a schematic diagram of the thermal management system provided by this utility model (with the handle in the exhaust position for exhaust). Figure 1 ;

[0041] Figure 4 This is a schematic diagram of the thermal management system provided by this utility model (the handle is in the operating position for normal cooling and heat dissipation). Figure 2 ;

[0042] Figure 5 This is a schematic diagram of the assembly structure of the exhaust component provided by this utility model on the main water inlet pipeline;

[0043] Figure 6 This is a schematic diagram of the internal connection structure of the exhaust component (the handle is shown in both the exhaust position and the operating position) provided by this utility model in the main water inlet pipeline for easy and intuitive understanding.

[0044] In the picture:

[0045] 1´-Target component to be cooled; 2´-Exhaust port; 3´-Exhaust pipe; 4´-Expansion tank; 5´-Water pump; 6´-Main water inlet pipe;

[0046] 61' - Inlet; 62' - Outlet; 7' - Air vent valve;

[0047] 10-Target component to be cooled; 101-Heating element; 102-Second outlet; 103-First inlet;

[0048] 1-Expansion tank; 11-First outlet; 12-Second inlet; 13-Third inlet; 2-Water pump; 21-Inlet; 22-Outlet;

[0049] 3-First exhaust assembly; 31-Exhaust port; 32-First exhaust pipe;

[0050] 4-Second exhaust assembly; 41-Exhaust component; 411-Ball valve; 4111-Handle; 422-Tee connector; 4221-Bypass connector; 4222-Bypass interface; 42-Second exhaust pipe;

[0051] 5-Inlet main water line; 6-Outlet main water line; 7-Water supply pipeline. Detailed Implementation

[0052] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0056] This embodiment provides a thermal management system and a new energy mining truck including the thermal management system, such as... Figure 3 and Figure 4As shown, the new energy mining truck also includes a target component 10 to be cooled. The target component 10 includes multiple heating elements 101 connected in series and / or in parallel. The thermal management system is used to cool and dissipate heat from each heating element 101, ensuring that each heating element 101 operates within a reasonable temperature range and does not overheat. Furthermore, by improving the directional air discharge effect and efficiency, the thermal management system ensures that antifreeze quickly and evenly fills the entire thermal management system (specifically, the pipes within the thermal management system used for antifreeze flow), ensuring sufficient antifreeze flow. Simultaneously, it prevents air from being discharged into the water pump 2, thus avoiding air trapping problems in the water pump 2 and ensuring normal antifreeze circulation. This, in turn, better ensures the cooling and heat dissipation effect of the thermal management system on the target component 10 to be cooled. The heating elements 101 can specifically be batteries, motors, or electrical components in the new energy mining truck; the specific number of heating elements 101 is not limited here.

[0057] Specifically, such as Figure 3 and Figure 4 As shown, the thermal management system includes an expansion tank 1, a water-cooled unit, a first exhaust assembly 3, and a second exhaust assembly 4. The expansion tank 1 is used to inject antifreeze. The water-cooled unit includes the aforementioned water pump 2. The first outlet 11 of the expansion tank 1 and the second outlet 102 of the target component 10 to be cooled (correspondingly, there are multiple second outlets 102 as there are multiple heating elements 101) are respectively connected to the inlet 21 of the water pump 2. The outlet 22 of the water pump 2 is connected to the first inlet 103 of the target component 10 to be cooled (correspondingly, there are multiple first inlets 103 as there are multiple heating elements 101). Multiple pumps are connected, and the operation of pump 2 can drive the antifreeze to circulate. The first venting assembly 3 is connected between the second outlet 102 of the target component 10 to be cooled and the second inlet 12 of the expansion tank 1. The first venting assembly 3 is used to vent air into the expansion tank 1. One end of the second venting assembly 4 is connected between the inlet 21 of pump 2 and the second outlet 102 of the target component 10 to be cooled, and the other end of the second venting assembly 4 is connected to the third inlet 13 of the expansion tank 1. The second venting assembly 4 can isolate or connect the inlet 21 of pump 2 and the second outlet 102 of the target component 10 to be cooled. Specifically, pump 2 is a centrifugal pump.

[0058] Specifically, when the expansion tank 1 is filled with antifreeze for the first time, the second venting assembly 4 isolates the inlet 21 of the water pump 2 from the second outlet 102 of the target component 10 to be cooled. This allows air and antifreeze from the second outlet 102 of the target component 10 to be cooled to be discharged into the expansion tank 1 via the second venting assembly 4, instead of into the water pump 2. Figure 3 As shown; after a certain period of discharge, the second exhaust assembly 4 is then connected to the water pump 2's inlet 21 and the target component 10's second outlet 102, as shown. Figure 4 As shown, the antifreeze that has cooled the target component 10 after passing through the second outlet 102 of the target component 10 (at this time, the air in the thermal management system has been basically discharged into the expansion tank 1 and directly discharged into the atmosphere by the expansion tank 1) flows directly back into the water pump 2, and will not flow to the expansion tank 1 again; that is, at this time the water inlet of the water pump 2 comes from the expansion tank 1 and the second outlet 102 of the target component, and there is basically no air in the entire thermal management system.

[0059] Compared to existing technologies, the thermal management system in this embodiment changes the specific air exhaust structure and method. By connecting the first outlet 11 of the expansion tank 1 and the second outlet 102 of the target component 10 to the inlet 21 of the water pump 2, and the outlet 22 of the water pump 2 to the first inlet 103 of the target component 10, the operation of the water pump 2 enables the antifreeze to circulate between the water pump 2 and the target component 10. This allows the antifreeze to act as a heat exchange medium, transferring the heat generated by the target component 10 to the antifreeze, thereby achieving cooling and heat dissipation of the target component 10 and ensuring that the target component 10 operates within a reasonable temperature range. Simultaneously, the first exhaust assembly 3 is connected... Between the second outlet 102 of the target component 10 to be cooled and the second inlet 12 of the expansion tank 1, the first venting assembly 3 is used to vent air (containing a small amount of antifreeze) into the expansion tank 1; and one end of the second venting assembly 4 is connected between the inlet 21 of the water pump 2 and the second outlet 102 of the target component 10 to be cooled, and the other end of the second venting assembly 4 is connected to the third inlet 13 of the expansion tank 1, so that when the expansion tank 1 is filled with antifreeze for the first time, the second venting assembly 4 can isolate the inlet 21 of the water pump 2 from the second outlet 102 of the target component 10 to be cooled, so that the air at the second outlet 102 of the target component 10 to be cooled and the large amount of antifreeze after cooling the target component 10 can pass through the second venting assembly. The air is discharged into the expansion tank 1. That is, the aforementioned first exhaust assembly 3 and second exhaust assembly 4, working in tandem, ensure that the air in the thermal management system has only one exhaust channel (i.e., it can only be discharged into the expansion tank 1) throughout the entire exhaust process. Therefore, air will essentially not enter the water pump 2 during the exhaust process, resulting in the following effects: 1) This exhaust method will not cause air binding in the water pump 2; it is a proactive exhaust method, a directional exhaust method taken before air binding occurs in the water pump 2; 2) During the air exhaust process, the air (including a large amount of antifreeze after cooling the target component 10) is directly cut off from the channel entering the water pump 2, ensuring that all the water entering the water pump 2 comes from the expansion tank 1. The expansion tank 1 has a single outlet for air, which can only be discharged into the expansion tank 1. This ensures that air in the entire thermal management system has nowhere to escape and can only be discharged through the single channel (towards the expansion tank 1). This eliminates the need for multiple venting operations, making the venting process simple and efficient, saving venting time and improving work efficiency. 3) During the entire venting process, both air and antifreeze flow only into the expansion tank 1, thus preventing antifreeze leakage and waste. 4) Because the air discharged into the expansion tank 1 is continuously released into the atmosphere, the antifreeze level in the expansion tank 1 will drop significantly, requiring timely replenishment of antifreeze, thereby improving the one-time filling rate of antifreeze in the expansion tank 1.

[0060] It is worth noting that the water-cooled unit also includes a radiator, which is used to cool the antifreeze flowing in from the inlet 21 of the water pump 2 so that the temperature of the antifreeze meets the cooling requirements of the target component 10 to be cooled. Here, the specific location and structure of the radiator are not limited, as long as it can ensure that the antifreeze flowing into the inlet 21 of the water pump 2 is cooled. The expansion tank 1 can be a common expansion tank in the prior art.

[0061] Furthermore, such as Figure 3 and Figure 4 As shown, the inlet 21 of the water pump 2 is connected to the second outlet 102 of the target component 10 to be cooled via the main water inlet pipeline 5. One end of the first exhaust assembly 3, one end of the second exhaust assembly 4, and the first outlet 11 of the expansion tank 1 are respectively connected to the main water inlet pipeline 5. The outlet 22 of the water pump 2 is connected to the first inlet 103 of the target component 10 to be cooled via the main water outlet pipeline 6. The first outlet 11 of the expansion tank 1 is connected to the main water inlet pipeline 5 via the water supply pipeline 7.

[0062] Specifically, such as Figure 3 and Figure 4 As shown, the first exhaust assembly 3 includes an exhaust port 31 and a first exhaust pipe 32. The exhaust port 31 is located on the main water inlet pipe 5 and at the highest point of the target component 10 to be cooled; that is, the exhaust port 31 is located at the highest point of each heating element 101, facilitating the direct discharge of air through the exhaust port 31 at the highest position into the first exhaust pipe 32. One end of the first exhaust pipe 32 is connected to the exhaust port 31, and the other end is connected to the second inlet 12 of the expansion tank 1, allowing air and a small amount of antifreeze in the first exhaust pipe 32 to be directly discharged into the expansion tank 1. The specific discharge direction of air and a small amount of antifreeze in the first exhaust pipe 32 is as follows: Figure 3 As shown by arrow C1 in the diagram.

[0063] Furthermore, such as Figure 3 and Figure 4As shown, the second venting assembly 4 includes a venting component 41 and a second venting pipe 42. The venting component 41 is connected to the main water inlet pipeline 5 and is used to isolate or connect the main water inlet pipeline 5. One end of the second venting pipe 42 is connected to the side branch interface 4222 of the venting component 41, and the other end of the second venting pipe 42 is connected to the third inlet 13 of the expansion tank 1. When the expansion tank 1 is filled with antifreeze for the first time and the venting component 41 isolates the main water inlet pipeline 5, the air (a small amount) and antifreeze (a large amount) at the second outlet 102 of the target component 10 to be cooled can be directly discharged into the expansion tank 1 through the second venting pipe 42. When the venting is completed for a period of time and the venting component 41 is connected to the main water inlet pipeline 5, the air has been basically discharged, and the antifreeze (basically without air) at the second outlet 102 of the target component 10 to be cooled can flow back to the water pump 2 through the main water inlet pipeline 5. When the venting component 41 isolates the main water inlet pipe 5 for venting, the specific discharge direction of air and antifreeze in the second vent pipe 42 is as follows: Figure 3 As shown by arrow C2; when the venting process has lasted for a period of time and the venting component 41 is connected to the main water inlet pipe 5, the antifreeze flows back from the main water inlet pipe 5 to the water pump 2 in the following specific direction. Figure 4 As indicated by arrow C3; the specific direction in which expansion tank 1 supplies antifreeze to water pump 2 during the entire operation is as follows: Figure 3 and Figure 4 As shown by arrow C4 in the diagram.

[0064] Specifically, the exhaust component 41 disconnects the main water inlet pipe 5 for a preset time and then reconnects it. This preset time is 20 ± 3 minutes. This ensures that the air in the entire thermal management system is basically completely exhausted within this preset time, greatly saving exhaust time and improving work efficiency. In this embodiment, the preset time is 20 minutes, meaning that the entire exhaust process needs to last for 20 minutes. During this exhaust process, since the air has only one exhaust channel (all of which is discharged into the expansion tank 1), it can be ensured that air will not enter the water pump 2 and cause air binding problems.

[0065] Furthermore, such as Figures 3 to 6 As shown, the exhaust component 41 includes a ball valve 411 and a tee connector 422. The ball valve 411 is connected to the main water inlet pipe 5 and is used to control the isolation and connection of the main water inlet pipe 5. The inlet and outlet ports of the tee connector 422 are connected in series to the main water inlet pipe 5, and the ball valve 411 is located downstream of the tee connector 422. One end of the second exhaust pipe 42 is connected to the side port 4222 of the tee connector 422. The ball valve 411 and the tee connector 422 can be common ball valves and tee connectors in the prior art.

[0066] By setting up a ball valve 411 and a three-way connector 422 that cooperate with each other, the entire exhaust component 41 can be made simple, compact, and low-cost; and, as Figure 5 and Figure 6 As shown, the ball valve 411 has a handle 4111 and an exhaust position and an operating position. When the handle 4111 is pushed to the exhaust position, the ball valve 411 disconnects the main water inlet pipe 5 to exhaust air through the second exhaust pipe 42 (at this time, the first exhaust pipe 32 also simultaneously exhausts air into the expansion tank 1). When the handle 4111 is pushed to the operating position, the ball valve 411 connects to the main water inlet pipe 5 to restore the normal circulating cooling operation. That is, the entire exhaust process does not require complicated operation; it only requires pushing the handle 4111 of the ball valve 411 according to the actual working conditions. This makes the entire exhaust operation simple, convenient, time-saving, and labor-saving, thereby further improving exhaust efficiency. Figure 6 The vertically upward-pointing handle 4111 shown is in the exhaust position. Figure 6 The position of the horizontally placed handle 4111 shown is the running position.

[0067] Specifically, such as Figure 3 and Figure 4 As shown, the distance between the ball valve 411 and the inlet 21 of the water pump 2 is less than the first preset distance; that is, the distance between the ball valve 411 and the inlet 21 of the water pump 2 is closer, so that the ball valve 411 can be placed closer to the inlet 21 of the water pump 2, thereby shortening the distance between the ball valve 411 and the inlet 21 of the water pump 2, so as to directly cut off the air around the inlet 21 of the water pump 2, and thus more effectively prevent air from entering the water pump 2. Here, the specific value of the first preset distance is not limited, as long as the distance between the ball valve 411 and the inlet 21 of the water pump 2 is close.

[0068] Furthermore, such as Figures 3 to 6 As shown, the distance between the outlet of ball valve 411 and the outlet of tee connector 422 is less than the second preset distance. This ensures a closer distance between the outlets of ball valve 411 and tee connector 422, preventing a small amount of air from accumulating between them due to an excessively large distance. This would prevent the trapped air from flowing directly into the water pump 2 when ball valve 411 connects to the main water inlet pipe 5. The specific value of the second preset distance is not limited here, as long as the distance between the outlets of ball valve 411 and tee connector 422 is kept close.

[0069] Specifically, such as Figure 5 and Figure 6As shown, the tee connector 422 includes a connector body and a side connector 4221. The connector body is part of the main water inlet pipe 5; that is, a portion of the main water inlet pipe 5 is directly used as the connector body, eliminating the need for an additional structure. This makes the tee connector 422 simple, reasonable, and cost-effective, maximizing resource utilization. One end of the side connector 4221 is welded to the main water inlet pipe 5, and the other end is the aforementioned side connector interface 4222 for connection to the second exhaust pipe 42. Furthermore, the ball valve 411 is directly welded to the main water inlet pipe 5, making the entire exhaust component 41 (tee connector 422 and ball valve 411) an integral structure with the main water inlet pipe 5. In other embodiments, an intermediate hose can be used to transfer the ball valve 411 to the main water inlet pipe 5.

[0070] like Figure 5 and Figure 6 As shown, by integrating the exhaust component 41 with the main water inlet pipeline 5, the overall integration of the structure can be improved, making the structure of the entire thermal management system simpler and more compact. On the other hand, it facilitates the installation and connection between the tee connector 422 and the ball valve 411 and the main water inlet pipeline 5, making the processing and connection between the exhaust component 41 and the main water inlet pipeline 5 simpler and more convenient, simplifying the connection pipeline, reducing processing costs, and ensuring the stability of the connection between the tee connector 422 and the ball valve 411 and the main water inlet pipeline 5.

[0071] The specific working process of the thermal management system in this embodiment is as follows:

[0072] First, antifreeze is injected into the expansion tank 1 for the first time, and the handle 4111 of the ball valve 411 is pushed to the venting position, as follows. Figure 3 As shown, at this time, the ball valve 411 disconnects the main water inlet pipeline 5, and the air (small amount) and antifreeze (large amount) at the second outlet 102 of the target component 10 to be cooled are discharged into the second exhaust pipe 42 through the three-way connector 422 and the ball valve 411 in sequence, so that the air and antifreeze in the second exhaust pipe 42 are directly discharged into the expansion tank 1; at the same time, the air (large amount) and antifreeze (small amount) at the second outlet 102 of the target component 10 to be cooled are discharged into the expansion tank 1 in sequence through the exhaust port 31 and the first exhaust pipe 32 in sequence; at the same time, the water pump 2 always keeps running to drive the antifreeze to cool the target component 10 to dissipate heat, and the antifreeze after cooling the target component 10 flows back to the expansion tank 1 through the second exhaust pipe 42 and does not flow back to the water pump 2. The antifreeze of the water pump 2 is only supplied through the expansion tank 1.

[0073] Then, after the above venting process continues for 20 minutes, that is, at this time the air in the entire thermal management system has been basically vented and the antifreeze is filled in the entire thermal management system to ensure sufficient antifreeze flow. At the same time, as the air in the expansion tank 1 is continuously vented, the antifreeze level in the expansion tank 1 will drop significantly. At this time, it is necessary to fill the expansion tank 1 with antifreeze in time.

[0074] Finally, push the handle 4111 of ball valve 411 to the operating position to connect the main inlet water line 5, such as... Figure 4 As shown, to restore the normal circulating cooling operation process; at this time, the antifreeze at the second outlet 102 of the target component 10 to be cooled flows directly back to the water pump 2 through the main water inlet pipe 5 and the water inlet 21 in sequence, so that the antifreeze flowing back to the water pump 2 is cooled by the radiator and continues to flow from the outlet 22 to the first inlet 103 of the target component 10 to be cooled for circulating cooling (the expansion tank 1 will always supply antifreeze to the water pump 2 during the entire operation); at the same time, a small amount of antifreeze at the second outlet 102 of the target component 10 to be cooled will be discharged directly back to the expansion tank 1 through the exhaust port 31 and the first exhaust pipe 32 in sequence.

[0075] In this embodiment, the thermal management system sets a ball valve 411 near the water inlet 21 of the water pump 2, and connects a three-way connector 422 upstream of the ball valve 411. This allows the system to directly block the passage of air (including antifreeze) into the water pump 2 during the venting process, ensuring that the air outlet is unique (can only be vented into the expansion tank 1 in a unique direction). This prevents air from flowing into the water pump 2, thus preventing air binding problems in the water pump 2 and ensuring the normal circulation of antifreeze.

[0076] In this embodiment, the thermal management system uses a coordinated ball valve 411 and a three-way connector 422 to directionally discharge air, enabling early intervention in air venting. This ensures that air venting measures are proactively taken before water pump 2 experiences air binding. Furthermore, during the entire venting process, the antifreeze mixed in the air is only discharged into the expansion tank 1, preventing any leakage or waste of antifreeze. Simultaneously, since the air can only be discharged into the expansion tank 1, there is only one airflow path, preventing repeated air circulation within the thermal management system. Typically, venting for 20 minutes is sufficient to completely remove the air from the thermal management system, significantly improving degassing efficiency.

[0077] In this embodiment, the thermal management system integrates the entire exhaust component 41 (tee connector 422 and ball valve 411) with the main water inlet pipeline 5 into a single structure, which improves the overall integration of the structure and facilitates the installation and connection of the tee connector 422 and ball valve 411 on the main water inlet pipeline 5, making assembly relatively simple and convenient.

[0078] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A thermal management system, characterized in that, include: Expansion tank (1), which is used to fill antifreeze; The water-cooled unit includes a water pump (2), the first outlet (11) of the expansion tank (1) and the second outlet (102) of the target component (10) to be cooled are respectively connected to the inlet (21) of the water pump (2), the outlet (22) of the water pump (2) is connected to the first inlet (103) of the target component (10) to be cooled, and the operation of the water pump (2) can drive the antifreeze to circulate; The first exhaust assembly (3) is connected between the second outlet (102) of the target component (10) to be cooled and the second inlet (12) of the expansion tank (1). The first exhaust assembly (3) is used to exhaust air into the expansion tank (1). The second exhaust assembly (4) has one end connected between the water inlet (21) of the water pump (2) and the second outlet (102) of the target component (10) to be cooled, and the other end connected to the third inlet (13) of the expansion tank (1). The second exhaust assembly (4) can isolate or connect the water inlet (21) of the water pump (2) and the second outlet (102) of the target component (10) to be cooled. When the expansion tank (1) is filled with antifreeze for the first time, the second venting assembly (4) isolates the inlet (21) of the water pump (2) from the second outlet (102) of the target component (10) to be cooled, so that the air and antifreeze at the second outlet (102) of the target component (10) to be cooled can be discharged into the expansion tank (1) through the second venting assembly (4).

2. The thermal management system according to claim 1, characterized in that, The inlet (21) of the water pump (2) is connected to the second outlet (102) of the target component (10) to be cooled via the main water inlet pipeline (5). One end of the first exhaust assembly (3), one end of the second exhaust assembly (4) and the first outlet (11) of the expansion tank (1) are respectively connected to the main water inlet pipeline (5).

3. The thermal management system according to claim 2, characterized in that, The first exhaust assembly (3) includes: The exhaust port (31) is located on the main water inlet pipeline (5) and at the highest position of the target component (10) to be cooled; The first exhaust pipe (32) is connected at one end to the exhaust port (31) and at the other end to the second inlet (12) of the expansion tank (1).

4. The thermal management system according to claim 2, characterized in that, The second exhaust assembly (4) includes: An exhaust component (41) is connected to the main water inlet pipeline (5), and the exhaust component (41) is used to disconnect or connect the main water inlet pipeline (5). The second exhaust pipe (42) has one end connected to the side branch interface (4222) of the exhaust component (41) and the other end connected to the third inlet (13) of the expansion tank (1). When the exhaust component (41) disconnects the main water inlet pipeline (5), the air and antifreeze at the second outlet (102) of the target component (10) to be cooled can be discharged into the expansion tank (1) through the second exhaust pipe (42); when the exhaust component (41) is connected to the main water inlet pipeline (5), the antifreeze at the second outlet (102) of the target component (10) to be cooled can flow back into the water pump (2) through the main water inlet pipeline (5).

5. The thermal management system according to claim 4, characterized in that, The exhaust component (41) disconnects the main water inlet pipeline (5) for a preset time and then connects to the main water inlet pipeline (5), the preset time being 20±3min.

6. The thermal management system according to claim 4 or 5, characterized in that, The exhaust component (41) includes: A ball valve (411) is connected to the main water inlet pipeline (5) and is used to control the isolation and connection of the main water inlet pipeline (5). The three-way connector (422) has its inlet and outlet ports connected in series on the main water inlet pipeline (5), and the ball valve (411) is located downstream of the three-way connector (422). One end of the second exhaust pipe (42) is connected to the side branch port (4222) of the three-way connector (422).

7. The thermal management system according to claim 6, characterized in that, The distance between the ball valve (411) and the inlet (21) of the water pump (2) is less than the first preset distance.

8. The thermal management system according to claim 6, characterized in that, The distance between the ball valve (411) and the outlet of the tee connector (422) is less than the second preset distance.

9. The thermal management system according to claim 6, characterized in that, The tee connector (422) includes: The connector body is part of the main water inlet pipeline (5); A side branch connector (4221) is welded at one end to the main water inlet pipeline (5) and at the other end to the second exhaust pipe (42); Furthermore, the ball valve (411) is welded to the main water inlet pipeline (5), making the exhaust component (41) and the main water inlet pipeline (5) an integral structure.

10. A new energy mining truck, characterized in that, The device includes a target component (10) to be cooled and a thermal management system as described in any one of claims 1-9, wherein the target component (10) to be cooled includes a plurality of heating elements (101) connected in series and / or in parallel, and the thermal management system is used to cool and dissipate heat from each of the heating elements (101).

Images