An integrated expansion tank with an integrated water pump, an expansion tank and an automobile

Abstract

This utility model relates to an integrated expansion tank with an integrated water pump, an expansion tank, and an automobile, belonging to the automotive field. The water tank body is connected to the water pump inlet via a water tank replenishment pipe at its lower part. A return water pipe is provided on the water tank replenishment pipe for connection to the upstream of the liquid cooling circulation pipeline, and the water pump outlet is connected to the downstream of the liquid cooling circulation pipeline. The water tank body is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe above the return water pipe inlet and the return water pipe inlet to achieve the replenishment function. The water pump is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe below the return water pipe inlet and the return water pipe inlet to drive the liquid cooling circulation. This integrates the water pump and expansion tank into one unit, effectively reducing the number of cooling system pipes, freeing up interior space, and effectively improving the exhaust efficiency of the cooling system.

Description

Technical Field

[0001] This utility model relates to an integrated expansion tank with an integrated water pump, an expansion tank, and an automobile, belonging to the automotive field. Background Technology

[0002] For new energy vehicles, both the cabin heating and battery electric drive systems rely on antifreeze circulation for heat management. The cooling system requires an expansion tank and a water pump for antifreeze storage and circulation. Specifically, the expansion tank maintains stable system pressure by accommodating the volume expansion of the antifreeze due to temperature changes. When the antifreeze expands due to high temperatures, excess liquid enters the expansion tank; when the antifreeze contracts, the expansion tank replenishes liquid to prevent negative pressure or excessive pressure within the system. Simultaneously, air within the system is expelled through the expansion tank, reducing the impact of air resistance on circulation efficiency. The water pump, through impeller rotation, propels the antifreeze through the system, ensuring a stable flow rate of antifreeze through key components such as the fuel cell stack and radiator.

[0003] Currently, in new energy vehicles, the expansion tank and water pump are arranged separately on the vehicle. Due to the influence of vehicle space, the distance between the water pump and the expansion tank cannot be fixed. When the distance between the water pump and the expansion tank is large, if the vehicle is short of antifreeze, not only will the water pump return port not be able to draw antifreeze, but the water pump motor will also run continuously without coolant. In addition, the gas in the cold zone system cannot be discharged in time, and the antifreeze replenishment efficiency will continue to decrease. Utility Model Content

[0004] The purpose of this invention is to provide an integrated expansion tank with an integrated water pump, an expansion tank, and an automobile, which improves the integration level of liquid cooling system components and solves the problems of insufficient gas removal and low liquid replenishment efficiency in the cooling system caused by excessive distance between the water pump and the expansion tank.

[0005] To achieve the above objectives, this utility model proposes an integrated expansion tank with an integrated water pump, comprising a tank body and a water pump. The water pump inlet is connected to the bottom of the tank body via a water tank replenishment pipe. A return water pipe outlet is provided on the water tank replenishment pipe for connection to the upstream of the liquid cooling circulation pipeline, and the water pump outlet is connected to the downstream of the liquid cooling circulation pipeline. The water tank body is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe above the return water pipe outlet and the return water pipe outlet to achieve the replenishment function. The water pump is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe below the return water pipe outlet and the return water pipe outlet to drive the liquid cooling circulation.

[0006] Furthermore, the length of the water tank replenishment pipe ranges from 60mm to 100mm.

[0007] Furthermore, the water pump is located below the water tank body.

[0008] Furthermore, a filling port is provided on the top of the water tank body; an expansion tank vent is provided on the side wall of the filling port.

[0009] Furthermore, at least one expansion tank vent is provided above the water tank body.

[0010] This utility model also provides an expansion tank, including a tank body, with a tank replenishment pipe at the bottom of the tank body for connecting to the water pump inlet; a water pump return pipe inlet is provided on the tank replenishment pipe for connecting to the upstream of the liquid cooling circulation pipeline, serving as the water pump return inlet; the tank body is connected to the liquid cooling circulation pipeline through a section of the tank replenishment pipe above the return pipe inlet and the return pipe inlet to realize the replenishment function; the section of the tank replenishment pipe below the return pipe inlet and the return pipe inlet serve as the water pump inlet pipeline.

[0011] Furthermore, the length of the water tank replenishment pipe ranges from 60mm to 100mm.

[0012] Furthermore, a filling port is provided on the top of the water tank body; an expansion tank vent is provided on the side wall of the filling port.

[0013] Furthermore, at least one expansion tank vent is provided above the water tank body.

[0014] On the other hand, this utility model also provides a car equipped with an integrated expansion tank with an integrated water pump, which completes the cooling cycle through the integrated expansion tank with an integrated water pump. The integrated expansion tank with an integrated water pump includes a tank body and a water pump. The water pump inlet is connected to the bottom of the tank body through a water tank replenishment pipe. A return water pipe is opened on the water tank replenishment pipe for connecting to the upstream of the liquid cooling circulation pipeline. The water pump outlet is connected to the downstream of the liquid cooling circulation pipeline. The tank body is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe above the return water pipe inlet and the return water pipe inlet to realize the replenishment function. The water pump is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe below the return water pipe inlet and the return water pipe inlet to drive the liquid cooling circulation.

[0015] Furthermore, the length of the water tank replenishment pipe ranges from 60mm to 100mm.

[0016] Furthermore, the water pump is located below the water tank body.

[0017] Furthermore, a filling port is provided on the top of the water tank body; an expansion tank vent is provided on the side wall of the filling port.

[0018] Furthermore, at least one expansion tank vent is provided above the water tank body.

[0019] The beneficial effects of this utility model are as follows: the water tank body is connected to the water pump inlet via a water tank replenishment pipe at the bottom, and a return water pipe outlet is opened on the water tank replenishment pipe for connecting to the upstream of the liquid cooling circulation pipeline. The water pump outlet is used to connect to the downstream of the liquid cooling circulation pipeline. The water tank body is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe above the return water pipe outlet and the return water pipe outlet to realize the replenishment function. The water pump is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe below the return water pipe outlet and the return water pipe outlet to drive the liquid cooling circulation. By integrating the replenishment port of the original expansion tank with the return water port of the original water pump, the water pump and expansion tank are integrated into one unit, avoiding the technical problems of insufficient gas expulsion and low replenishment efficiency in the cooling system caused by the excessive distance between the existing water pump and expansion tank. Moreover, it effectively reduces the number of cooling system pipes, frees up vehicle interior space, and effectively improves the exhaust efficiency of the cooling system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the integrated expansion tank of an integrated water pump proposed in this utility model;

[0021] Figure 2 This is a front view of an integrated expansion tank for an integrated water pump proposed in this utility model.

[0022] Figure 3 This is a left view of an integrated expansion tank for an integrated water pump proposed in this utility model.

[0023] Figure 4 This is a top view of an integrated expansion tank for an integrated water pump proposed in this utility model.

[0024] Figure 5 This is a perspective view of an integrated expansion tank for an integrated water pump proposed in this utility model.

[0025] The image includes:

[0026] 1-Expansion tank vent; 2-Expansion tank overflow port; 3-Water pump return pipe port; 4-Water pump outlet pipe port; 5-Water pump; 6-Water tank replenishment pipe; 7-Water tank body; 8-Addition port; 9-Water pump inlet. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and embodiments.

[0028] The concept of this utility model is as follows: a water tank replenishment pipe for connecting to a water pump is directly installed below the water tank body, so that the water tank body and the water pump are connected through the water tank replenishment pipe; a water pump return pipe port is opened on the water tank replenishment pipe for connecting to the upstream of the liquid cooling circulation pipeline, which serves as the water pump return port, thereby integrating the existing expansion tank replenishment port and the water pump, thus integrating the existing expansion tank and the water pump, improving the integration level of the liquid cooling system components, and effectively solving the problem of gas not being able to be discharged and low replenishment efficiency in the cooling system caused by the excessive distance between the existing water pump and the expansion tank.

[0029] Specific implementation method 1 for the integrated expansion tank of the integrated water pump:

[0030] This utility model proposes an integrated expansion tank for an integrated water pump (see...). Figure 1 A water tank replenishment pipe 6 is provided below the water tank body 7 for connecting to the water pump inlet 9. This pipe connects the water tank body and the water pump, integrating the replenishment pipe and the water pump inlet to form an integrated expansion tank and water pump. Here, the replenishment pipe 6 is used for dynamic liquid level compensation and pressure maintenance during operation. In a preferred embodiment of this invention, the water pump 5 is preferably located below the water tank body 7 to minimize the distance between the tank body and the pump. The length of the replenishment pipe 6 is preferably between 60mm and 100mm.

[0031] A return water inlet 3 is provided on the water tank replenishment pipe 6 for connection to the upstream of the liquid cooling circulation pipeline, and the water pump 5 outlet 4 is connected to the downstream of the liquid cooling circulation pipeline. The water tank body 7 is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe 6 above the return water inlet 3 and the return water inlet 3 to realize the liquid replenishment function. The water pump 5 is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe 6 below the return water inlet 3 and the return water inlet 3 to drive the liquid cooling circulation, so that the antifreeze flows a short distance between the water tank body and the water pump, avoiding the water pump motor from running continuously without drawing antifreeze when there is a large amount of antifreeze loss. It should be noted that the water tank replenishment pipe 6 is a straight pipe.

[0032] Meanwhile, the opening directions of the water pump return pipe port 3 and the water pump outlet pipe port 4 can be the same or different, depending on the specific operating environment. In the preferred embodiment of this utility model, the opening directions of the water pump return pipe port 3 and the water pump outlet pipe port 4 are preferably the same.

[0033] Specific implementation method 2 for the integrated expansion tank of the integrated water pump:

[0034] This utility model proposes an integrated expansion tank for an integrated water pump. Based on embodiment 1 of the integrated expansion tank for an integrated water pump, the expansion tank has a filling port 8 above the tank body 7 for antifreeze replacement and composition adjustment under extreme conditions. An expansion tank vent 1 is located on the side wall of the filling port 8 (see...). Figure 1 In this invention, the opening direction of the expansion tank vent 1 is not limited, but preferably the opening directions of the expansion tank vent, the water pump return pipe 3, and the water pump outlet pipe 4 are the same.

[0035] Specific implementation method 3 for the integrated expansion tank of the integrated water pump:

[0036] The integrated expansion tank of this utility model is based on embodiment 2 of the integrated expansion tank of the integrated water pump. At least one expansion tank vent 2 is further provided above the tank body 7 of the integrated expansion tank (see...). Figure 1 Here, the number of expansion tank overflow ports 2 will be set according to the needs of different cooling systems, and the opening direction of each expansion tank overflow port 2 will also be set according to the needs of different cooling systems. In this utility model, it is preferable that the opening directions of the expansion tank vent, the water pump return pipe 3, and the water pump outlet pipe 4 are consistent.

[0037] Specific implementation method 4 for the integrated expansion tank of the integrated water pump:

[0038] like Figure 1The diagram shows a structural schematic of an integrated expansion tank for an integrated water pump proposed in this utility model. The integrated expansion tank includes a tank body 7. A water tank replenishment pipe 6 is located below the tank body 7 for connecting to the water pump inlet 9. The water pump 5 is positioned below the tank body 7, integrating the replenishment port of the original expansion tank with the return port of the original water pump via the water tank replenishment pipe 6. A return water pipe is provided on the water tank replenishment pipe 6 for connecting to the upstream of the liquid cooling circulation pipeline. Pipe inlet 3 and water pump outlet 4 are used to connect to the downstream of the liquid cooling circulation pipeline. The water tank body 7 is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe 6 above the return water pipe outlet 3 and the return water pipe outlet 3 to realize the liquid replenishment function. The water pump 5 is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe 6 below the return water pipe outlet 3 and the return water pipe outlet 3 to drive the liquid cooling circulation. The opening direction of the water pump return water pipe outlet 3 is consistent with that of the water pump outlet 4 used to discharge the upstream antifreeze. A filling port 8 is provided above the water tank body 7 for antifreeze replacement or composition adjustment under extreme conditions. An expansion tank vent 1 is provided on the side wall of the filling port 8. Moreover, the opening directions of the expansion tank vent 1, the water pump return water pipe outlet 3, and the water pump outlet 4 are all consistent. Above the water tank body 7, there are two expansion tank vents 2. The opening directions of the expansion tank vent, the water pump return pipe 3, and the water pump outlet pipe 4 are all the same. The water pump return pipe 3 for the upstream antifreeze is integrated into the water tank replenishment pipe 6, realizing the integration of the expansion tank and the water pump. The water pump is located directly below the water tank body. When the antifreeze in the cooling system is low, antifreeze can be added to the expansion tank and quickly drawn into the water pump. The antifreeze replenishment efficiency of the cooling system is high. At the same time, compared with the water tank and water pump being arranged separately, the number of pipes from the water tank to the water pump is reduced, freeing up the vehicle layout space and improving the precision of the vehicle piping. It also effectively improves the exhaust efficiency of the cooling system, the integration of cooling system components, and the exhaust effect of the cooling system.

[0039] Specific implementation method 5 for the integrated expansion tank of the integrated water pump:

[0040] Following the specific embodiments described above, such as... Figure 2-5 The figures shown are a front view, a left view, a top view, and a perspective view of the integrated expansion tank of the integrated water pump. The width of the water tank replenishment pipe is preferably 25 mm.

[0041] Detailed implementation of expansion tank:

[0042] This utility model proposes an expansion tank, comprising a tank body 7, with a water tank replenishment pipe 6 at the bottom of the tank body 7 for connecting to a water pump inlet 9; a water pump return pipe inlet 3 is provided on the water tank replenishment pipe 6 for connecting to the upstream of the liquid cooling circulation pipeline, serving as the water pump return inlet; the water tank body 7 is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe 6 above the return pipe inlet 3 and the return pipe inlet 3 to achieve the replenishment function; the section of the water tank replenishment pipe 6 below the return pipe inlet 3 and the return pipe inlet 3 serve as the water pump inlet pipeline, realizing the water pump return pipe inlet on the replenishment pipe below the tank body, so that the expansion tank can be integrated with the water pump through the replenishment pipe, effectively reducing the number of pipelines from the expansion tank to the water pump, improving the integration between the expansion tank and the water pump, and more ideally improving the precision of the overall vehicle piping. Meanwhile, the length range of the water tank replenishment pipe 6 is preferably 60mm-100mm.

[0043] Meanwhile, a filling port 8 is provided above the water tank body 7; an expansion tank vent 1 is provided on the side wall of the filling port 8, wherein the opening direction of the expansion tank vent and the water pump return pipe 3 are the same. At least one expansion tank overflow port 2 is provided above the water tank body 7, wherein the opening direction of the expansion tank overflow port and the water pump return pipe 3 are the same.

[0044] Specific implementation method for automobiles:

[0045] This utility model also proposes a car equipped with an integrated expansion tank with the aforementioned integrated water pump, so as to complete the cooling cycle through the integrated expansion tank with the integrated water pump. Specifically, (see...) Figure 1 The integrated expansion tank includes a tank body 7 and a water pump 5. The bottom of the tank body 7 is connected to the water pump inlet 9 via a water tank replenishment pipe 6. A return water pipe port 3 is opened on the water tank replenishment pipe 6 for connecting to the upstream of the liquid cooling circulation pipeline. The outlet 4 of the water pump 5 is used to connect to the downstream of the liquid cooling circulation pipeline. The tank body 7 is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe 6 above the return water pipe port 3 and the return water pipe port 3 to realize the replenishment function. The water pump 5 is connected to the liquid cooling circulation pipeline via a section of the water tank replenishment pipe 6 below the return water pipe port 3 and the return water pipe port 3 to drive the liquid cooling circulation.

[0046] Meanwhile, the length of the water tank replenishment pipe 6 ranges from 60mm to 100mm; the water pump 5 is located below the water tank body 7. A filling port 8 is provided on the top of the water tank body 7; an expansion tank vent 1 is provided on the side wall of the filling port 8. At least one expansion tank overflow port 2 is provided on the top of the water tank body 7, achieving low-cost and high-efficiency improvement in the exhaust effect of the vehicle's internal cooling system. For the vehicle implementation method, please refer to the above-described embodiment and implementation method of the integrated expansion tank with fully integrated water pump; further details will not be repeated here.

[0047] In summary, the significance of this utility model lies in providing an integrated expansion tank with an integrated water pump for the cooling system. By integrating the original expansion tank's inlet and the original water pump's outlet, it can avoid the problem of poor water pump suction caused by the long distance between the cooling system's water pump and the expansion tank. It can also improve the integration of cooling system components, reduce costs, and free up space in the vehicle layout.

Claims

1. An integrated expansion tank with an integrated water pump, comprising a tank body (7), characterized in that, It also includes a water pump (5), and the water tank body (7) is connected to the water pump inlet (9) through the water tank replenishment pipe (6). A return water pipe port (3) is opened on the water tank replenishment pipe (6) for connecting to the upstream of the liquid cooling circulation pipeline. The water pump (5) outlet (4) is used to connect to the downstream of the liquid cooling circulation pipeline. The water tank body (7) is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe (6) above the return water pipe port (3) and the return water pipe port (3) to realize the replenishment function. The water pump (5) is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe (6) below the return water pipe port (3) and the return water pipe port (3) to drive the liquid cooling circulation.

2. The integrated expansion tank of the integrated water pump according to claim 1, characterized in that, The length of the water tank replenishment pipe (6) ranges from 60mm to 100mm.

3. The integrated expansion tank of the integrated water pump according to claim 1, characterized in that, The water pump (5) is located below the water tank body (7).

4. The integrated expansion tank of the integrated water pump according to claim 1, characterized in that, A filling port (8) is provided on the top of the water tank body (7); an expansion tank vent (1) is provided on the side wall of the filling port (8).

5. The integrated expansion tank of the integrated water pump according to claim 1, characterized in that, At least one expansion tank vent (2) is provided above the water tank body (7).

6. An expansion tank, comprising a tank body (7), characterized in that, The water tank body (7) is provided with a water tank replenishment pipe (6) for connecting to the water pump inlet (9) at the bottom; a water pump return pipe inlet (3) is opened on the water tank replenishment pipe (6) for connecting to the upstream of the liquid cooling circulation pipeline and serving as the water pump return inlet; the water tank body (7) is connected to the liquid cooling circulation pipeline through a section of the water tank replenishment pipe (6) above the return pipe inlet (3) and the return pipe inlet (3) to realize the replenishment function; the section of the water tank replenishment pipe (6) below the return pipe inlet (3) and the return pipe inlet (3) serve as the water pump inlet pipeline.

7. The expansion tank according to claim 6, characterized in that, The length of the water tank replenishment pipe (6) ranges from 60mm to 100mm.

8. The expansion tank according to claim 6, characterized in that, A filling port (8) is provided on the top of the water tank body (7); an expansion tank vent (1) is provided on the side wall of the filling port (8).

9. The expansion tank according to claim 6, characterized in that, At least one expansion tank vent (2) is provided above the water tank body (7).

10. A car, characterized in that, The vehicle is equipped with an integrated expansion tank with an integrated water pump as described in any one of claims 1-5, so as to complete the cooling cycle through the integrated expansion tank with the integrated water pump.

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