Integrated liquid cooling module of passenger car

Abstract

The utility model discloses an integrated liquid cooling module of a passenger car, and aims to provide the integrated liquid cooling module of the passenger car, which is simple and compact in structure, good in corrosion resistance and convenient to install and maintain, and the cooling effect of cooling liquid is improved, and a radiator adopts integrated horizontal installation. The device comprises an expansion kettle, a heat dissipation water tank, an electronic water pump and a heat dissipation fan, the front end and the rear end of the heat dissipation water tank are provided with a water tank liquid outlet connector and a water tank liquid inlet connector respectively, the input end of the electronic water pump is connected with the outlet end of a cooling liquid loop, and the outlet end of the electronic water pump is connected with the water tank liquid inlet connector and the expansion kettle through a three-way pipe fitting. The water tank liquid outlet connector is connected with the inlet end of the cooling liquid loop, the electronic water pump is fixed to the front side of the heat dissipation water tank through a water pump support, the expansion kettle is fixed to the rear side of the heat dissipation water tank through a kettle support, and the heat dissipation fan is obliquely arranged above the heat dissipation fan through a fan fixing cover. The cooling device is applied to the technical field of passenger car cooling.

Description

Technical Field

[0001] The utility model relates to a liquid cooling module, in particular to an integrated liquid cooling module for a passenger car. Background Art

[0002] At present, the drive motors, drive motor controllers and other auxiliary drive controllers installed on new energy buses will generate heat when working. In order to ensure that these heat-generating components can operate normally, a liquid cooling system is generally designed for them; the radiator of the existing liquid cooling system is generally installed upright, and the air inlet on the front needs to be close to the air intake grille of the side hatch, and sufficient space needs to be reserved on the back for exhaust. However, due to the limited space of the vehicle chassis, the electronic water pump and other pipelines are often arranged in the space on the back. The large number of pipelines makes the space relatively messy and hinders the exhaust of the radiator, thereby reducing the heat dissipation capacity of the radiator. In addition, since the back of the radiator needs to be exposed to the outside of the chassis, dust, mud and water under the chassis during the driving of the vehicle will splash onto the surface of the back shell of the radiator, accelerating the rust rate of the radiator shell. In addition, the radiator, electronic water pump and expansion kettle of the current liquid cooling system are arranged separately. The radiator and electronic water pump are installed inside the liquid cooling compartment, and the expansion kettle is installed in the rear compartment. The installation of the relevant components of the liquid cooling system is relatively scattered, which increases the length and installation space of the cooling pipeline, and increases the amount of coolant to be filled. Since the emptying interface of the expansion kettle and the discrete hot water tank is far away, it is not conducive to the emptying operation when filling the coolant. Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an integrated liquid cooling module for buses which has a simple and compact structure, improves the cooling effect of the coolant, adopts an integrated horizontal installation of the radiator, has good corrosion resistance, and is easy to install and maintain.

[0004] The technical solution adopted by the utility model is as follows: the utility model comprises an expansion kettle, a heat dissipation water tank, an electronic water pump and a heat dissipation fan, the front and rear ends of the heat dissipation water tank are respectively provided with a water tank liquid outlet interface and a water tank liquid inlet interface, the input end of the electronic water pump is connected with the outlet end of the coolant circuit, the outlet end of the electronic water pump is respectively connected with the water tank liquid inlet interface and the expansion kettle through a three-way pipe fitting, the water tank liquid outlet interface is connected with the inlet end of the coolant circuit, the electronic water pump is fixed to the front side of the heat dissipation water tank through a water pump bracket, the expansion kettle is fixed to the rear side of the heat dissipation water tank through a kettle bracket, the heat dissipation fan is obliquely arranged above the heat dissipation fan through a fan fixing cover, and the air outlet wind direction of the heat dissipation fan is inclined to enter the heat dissipation water tank.

[0005] Furthermore, the heat dissipation water tank includes a heat dissipation grid, two main frames and two secondary frames. The two main frames and the two secondary frames are respectively fixed on the four sides of the heat dissipation grid. A number of connecting holes are provided on the two main frames. The coolant enters through the water tank liquid inlet interface and flows into the water tank liquid outlet interface through the heat dissipation grid.

[0006] Furthermore, a first kettle mounting plate is provided on the side wall of the expansion kettle, a coolant filling port is provided on the upper side of the expansion kettle, a transparent liquid level hose is provided below the coolant filling port, and a liquid replenishing interface is provided at the bottom of the expansion kettle.

[0007] Furthermore, the kettle bracket includes a second kettle mounting plate, a kettle fixing plate vertically extending from one end of the second kettle mounting plate, triangular reinforcement ribs are respectively arranged between the two side walls of the second kettle mounting plate and the two ends of the kettle fixing plate, and an avoidance circular hole and four kettle connecting holes are arranged on the second kettle mounting plate, and the four kettle connecting holes are evenly distributed around the avoidance circular hole.

[0008] Furthermore, the fan fixing cover includes a rectangular frame, and the four inner walls of the rectangular frame are each provided with supporting side panels extending upward, and the tops of the four supporting side panels are provided with fan mounting plates inclined to the rectangular frame, and the fan mounting plate is provided with a fan avoidance circular hole and four fan connecting holes, and the four fan connecting holes are evenly distributed around the fan avoidance circular hole.

[0009] Furthermore, the radiator water tank also includes a drain pipe and a first drain interface arranged at the end of the radiator grid, the expansion kettle also includes a second drain interface, the end of the rectangular frame is provided with a semicircular notch adapted to the first drain interface, one end of the drain pipe is connected to the first drain interface, and the other end of the drain pipe is connected to the second drain interface.

[0010] Furthermore, the angle between the fan mounting plate and the rectangular frame ranges from 20° to 70°.

[0011] Furthermore, the air outlet direction of the heat dissipation fan is tangent to the side end surface of the heat dissipation grille.

[0012] Furthermore, the water pump bracket includes a water pump fixing plate, a water pump mounting plate extending vertically from one end of the water pump fixing plate, reinforcing ribs are respectively provided at both ends of the water pump fixing plate and the two ends of the water pump mounting plate, and both the water pump fixing plate and the water pump mounting plate are provided with water pump connection holes.

[0013] Furthermore, two shock-absorbing rubber pads connected to the external liquid cooling module cabin are provided at the bottom of the two main frames.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, the expansion kettle, the radiator water tank, the electronic water pump, the radiator fan and related connecting pipes are integrated together, the radiator is installed in a horizontal position, the electronic water pump and the expansion kettle are arranged at both sides of the radiator water tank, the expansion kettle related connecting pipes are greatly shortened, thereby also improving the emptying efficiency when adding coolant, because the expansion kettle is integrated with the radiator water tank, the space for arranging the expansion kettle and related pipes in the original rear compartment of the bus is freed up, which is convenient for other parts The utility model is compact in overall structure and is an assembly structure, especially the installation dimension height is relatively reduced, and the installation can be completed at one time on the vehicle assembly line. Compared with the original traditional state, the radiator, electronic water pump, expansion kettle and related pipelines need to be installed one by one on the vehicle. The utility model greatly shortens the assembly time of the vehicle and improves production efficiency. By installing the utility model in a semi-enclosed cabin, it can effectively prevent the bracket of the liquid cooling module or the shell of the related components from being directly splashed by the muddy water under the vehicle, thereby improving the working reliability of the entire liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 is a structural schematic diagram of the heat dissipation water tank;

[0018] Figure 4 is a schematic structural diagram of the expansion kettle;

[0019] Figure 5 is a structural schematic diagram of the kettle bracket;

[0020] Figure 6 is a structural schematic diagram of the fan fixing cover;

[0021] Figure 7 It is a structural schematic diagram of the water pump bracket. DETAILED DESCRIPTION

[0022] like Figures 1 to 7As shown, in this embodiment, the utility model includes an expansion kettle 1, a heat dissipation water tank 2, an electronic water pump 3 and a heat dissipation fan 4, the front and rear ends of the heat dissipation water tank 2 are respectively provided with a water tank outlet interface 21 and a water tank inlet interface 22, the input end of the electronic water pump 3 is connected to the outlet end of the coolant circuit, the outlet end of the electronic water pump 3 is respectively connected to the water tank inlet interface 22 and the expansion kettle 1 through a three-way pipe fitting 31, the water tank outlet interface 21 is connected to the inlet end of the coolant circuit, the electronic water pump 3 is fixed to the front side of the heat dissipation water tank 2 through a water pump bracket 5, the expansion kettle 1 is fixed to the rear side of the heat dissipation water tank 2 through a kettle bracket 6, the heat dissipation fan 4 is obliquely arranged above the heat dissipation fan 4 through a fan fixing cover 7, and the air outlet direction of the heat dissipation fan 4 is inclined to enter the heat dissipation water tank 2.

[0023] It can be seen from the above scheme that the three-way pipe fitting 31 is a stainless steel T-shaped three-way pipe, and the electronic water pump 3 is used to pump the coolant with a higher temperature in the coolant circuit through the water pipe to the water tank inlet interface 22 and the expansion kettle 1, and the coolant enters the cooling water tank 2 through the water tank inlet interface 22, and the water tank inlet interface 22 and the expansion kettle 1 are connected through the three-way pipe fitting 31. The expansion kettle 1 is used to balance the water pressure of the cooling water tank 2, and the cooling fan 4 is used to cool the coolant passing through the cooling water tank 2, and the cooled coolant flows out to the cooling liquid circuit through the water tank outlet interface 21. Therefore, compared with the prior art, the expansion kettle 1, the radiator water tank 2, the electronic water pump 3, the radiator fan 4 and related connecting pipes are integrated together in the utility model, and the radiator is installed in a horizontal position. The electronic water pump 3 and the expansion kettle 1 are arranged at both sides of the radiator water tank 2, which greatly shortens the expansion kettle 1 and related connecting pipes, thereby also improving the emptying efficiency when filling the coolant. Since the expansion kettle 1 is integrated with the radiator water tank 2, the space for arranging the expansion kettle 1 and related pipes in the original rear compartment of the bus is freed up, which is convenient for other parts. The components are arranged to reduce the complexity of the pipeline arrangement at nearby locations. The overall structure of the utility model is compact and is an assembly structure, especially the installation size height is relatively reduced, and the installation can be completed at one time on the vehicle assembly line. Compared with the original traditional state, the radiator, electronic water pump, expansion kettle and related pipelines need to be installed one by one on the vehicle. The utility model greatly shortens the assembly time of the vehicle and improves production efficiency. By installing the utility model in a semi-enclosed cabin, it can effectively prevent the bracket of the liquid cooling module or the shell of the related components from being directly splashed by mud and water under the vehicle, thereby improving the working reliability of the entire liquid cooling system.

[0024] like Figure 3As shown, in this embodiment, the heat dissipation water tank 2 includes a heat dissipation grid 23, two main frames 24 and two secondary frames 25. The two main frames 24 and the two secondary frames 25 are respectively fixed on the four sides of the heat dissipation grid 23. A plurality of connecting holes 26 are provided on the two main frames 24. The coolant enters through the water tank liquid inlet interface 22 and flows into the water tank liquid outlet interface 21 through the heat dissipation grid 23.

[0025] It can be seen from the above scheme that the coolant carrying the heat of the heat-generating components in the cooling main circuit enters from the water tank liquid inlet interface 22, and then flows into the liquid outlet cavity of the heat dissipation water tank 7 through the flat pipe inside the heat dissipation grid 23. At the same time, the heat dissipation fan 4 forces air to be supplied to the heat dissipation grid 23. Generally, the ambient air temperature will be higher than the temperature of the coolant flowing through the heat dissipation grid 23, and it will flow out from the water tank liquid outlet interface 21. The coolant that has been forced to cool down will flow back into the main circuit through the water tank liquid outlet interface 21. The four sides of the heat dissipation grid 23 are respectively fixed in the middle by two main frames 24 and two secondary frames 25. The two main frames 24 and the two secondary frames 25 are connected together by bolts. One of the main frames 24 is provided with four expansion kettle bracket connecting holes, and the other main frame 24 is provided with two electronic water pump inner side connecting holes and four electronic water pump bracket connecting holes. The water pump bracket 5 and the electronic water pump 3 are fixed to the main frame 24 by screws.

[0026] like Figure 4 As shown, in the present embodiment, a first kettle mounting plate 11 is provided on the side wall of the expansion kettle 1, a coolant filling port 12 is provided on the upper side end of the expansion kettle 1, a transparent liquid level hose 13 is provided below the coolant filling port 12, a liquid replenishing interface 14 is provided at the bottom of the expansion kettle 1, and four bolt holes connected to the kettle bracket 6 are provided on the first kettle mounting plate 11.

[0027] It can be seen from the above scheme that the expansion kettle 1 is installed on the kettle bracket 6 through four bolt holes and fixing bolts and nuts. The coolant filling port 12 is designed on the upper side. When it is assembled on the vehicle, the coolant filling port 12 faces the outside of the vehicle body, which is convenient for filling coolant. The main body material of the expansion kettle 1 is a stamped steel plate. The transparent liquid level hose 13 is a transparent material. The amount of coolant inside the expansion kettle 1 can be directly checked through the transparent liquid level hose 13. The liquid filling interface 14 is used to connect with the three-way pipe The expansion kettle 1 is connected to the main circuit of the liquid cooling system through the three-way pipe fitting 31. When the entire liquid cooling system is filled with coolant, external coolant is filled into the cavity of the expansion kettle 1 from the coolant filling port 12, and the coolant inside the cavity flows into the main circuit of the liquid cooling system through the liquid replenishing interface 14. The air inside the main circuit and inside the heat-generating components connected to the liquid cooling system enters the upper part of the cavity of the expansion kettle 1 through the pipeline, and is finally discharged into the atmosphere through the coolant filling port 12 after the lid is opened.

[0028] like Figure 5 As shown, in the present embodiment, the kettle bracket 6 comprises a second kettle mounting plate 61, a kettle fixing plate 62 is vertically extended from one end of the second kettle mounting plate 61, triangular reinforcement ribs 65 are respectively arranged between the two side walls of the second kettle mounting plate 61 and the two ends of the kettle fixing plate 62, and an avoidance circular hole 63 and four kettle connecting holes 64 are arranged on the second kettle mounting plate 61, and the four kettle connecting holes 64 are evenly distributed around the avoidance circular hole 63.

[0029] It can be seen from the above scheme that the second kettle mounting plate 61 is fixedly connected to the first kettle mounting plate 11 through the four kettle connecting holes 64 and screws, the avoidance circular hole 63 plays an avoidance role in the installation of the expansion kettle 1, and the triangular reinforcement rib 65 is used to increase the strength of the bracket to avoid resonance of the expansion kettle 1 or reduce the vibration amplitude. The kettle fixing plate 62 is provided with four expansion kettle bracket mounting holes, which are fixed to the main frame 24 of the heat sink by bolts.

[0030] like Figure 6 As shown, in the present embodiment, the fan fixing cover 7 comprises a rectangular frame 71, and the four inner side walls of the rectangular frame 71 are each provided with a supporting side panel 72 extending upward, and the top of the four supporting side panels 72 is provided with a fan mounting plate 73 inclined to the rectangular frame 71, and the fan mounting plate 73 is provided with a fan avoidance circular hole 74 and four fan connecting holes 75, and the four fan connecting holes 75 are evenly distributed around the fan avoidance circular hole 74.

[0031] It can be seen from the above scheme that the fan fixing cover 7 is a sheet metal part, the fan avoidance circular hole 74 is a ventilation hole, and the cooling fan 4 is installed on the fan mounting plate 73 through the four fan connecting holes 75. When the cooling fan 4 is working, the air is forced to be sent from the fan avoidance circular hole 74 into the fan fixing cover 7. The rectangular frame 71 is provided with six cooling fan fixing cover mounting holes, and the cooling fan fixing cover 9 is fixed to the two secondary frames 25 by bolts. Both sides of the two main frames 24 are provided with flanges for strengthening the strength of both sides of the fan fixing cover 7 and playing a sealing role, thereby ensuring that most of the air can flow through the heat dissipation grid 23, thereby ensuring the cooling effect of the utility model.

[0032] like Figure 3 As shown, in this embodiment, the heat dissipation water tank 2 also includes a drain pipe 28 and a first drain interface 27 arranged at the end of the heat dissipation grid 23, the expansion kettle 1 also includes a second drain interface 15, and the end of the rectangular frame 71 is provided with a semicircular notch 76 adapted to the first drain interface 27, one end of the drain pipe 28 is connected to the first drain interface 27, and the other end of the drain pipe 28 is connected to the second drain interface 15.

[0033] It can be seen from the above scheme that the semicircular notch 76 is adapted to the first drain interface 27, so as to avoid interference and facilitate the installation of the fan fixing cover 7. The drain pipe 6 is a straight rubber hose with a smaller inner diameter, which is used to connect the expansion kettle 1 and the heat dissipation water tank 2. The drain pipe 6 is also used to discharge the air separated from the coolant in the liquid inlet cavity of the heat dissipation water tank 2 due to the sharp drop in flow rate into the cavity of the expansion kettle 1.

[0034] like Figure 6 As shown, in this embodiment, the angle between the fan mounting plate 73 and the rectangular frame 71 is 30°, and the air outlet direction of the heat dissipation fan 4 is tangent to the side end surface of the heat dissipation grille 23 .

[0035] It can be seen from the above scheme that the cooling fan 4 is fixed above the cooling water tank 2 through the fan fixing cover 7, and the cooling fan 4 is inclined at an angle of 30° to the cooling water tank 2 after installation, so that the wind direction blown by the cooling fan 4 is tangent to the cooling grille 23, thereby increasing the adhesion of the air volume flowing through the cooling grille 23, thereby taking away the heat, and further improving the cooling effect of the utility model.

[0036] like Figure 7As shown, in the present embodiment, the water pump bracket 5 comprises a water pump fixing plate 51, a water pump mounting plate 52 vertically extending from one end of the water pump fixing plate 51, reinforcing plate ribs 53 are respectively provided at both ends of the water pump fixing plate 51 and the two ends of the water pump mounting plate 52, and both the water pump fixing plate 51 and the water pump mounting plate 52 are provided with a water pump connecting hole 54.

[0037] It can be seen from the above scheme that the electronic water pump 3 is connected in series on the main circuit of the liquid cooling system. Its function is to drive the coolant inside the entire liquid cooling system to flow by pressurizing the coolant flowing through it. The reinforcing plate ribs 53 are used to increase the strength of the water pump fixing plate 51 and the water pump mounting plate 52 to avoid resonance between the electronic water pump 3 and nearby components or frames when working. The water pump fixing plate 51 fixes the electronic water pump 3 through the water pump connecting hole 54 and screws, and the water pump mounting plate 52 is fixed to the main frame 24 through the water pump connecting hole 54 and screws.

[0038] like Figure 2 As shown, in this embodiment, two shock-absorbing rubber pads connected to the external liquid cooling module cabin are provided at the bottom of the two main frames 24.

[0039] It can be seen from the above solution that the heat dissipation water tank 2 is fixed in the external liquid cooling module cabin by means of the shock-absorbing rubber pads and screws, thereby further improving the stability of the utility model.

[0040] In this embodiment, the working principle of the utility model is:

[0041] The air intake side of the utility model is arranged in the side compartment at the rear of the vehicle body, and the air outside the vehicle body is forced to be sucked in through the operation of the cooling fan 4. At the same time, the air flows through the heat sink on the cooling water tank 2, and takes away the heat on the heat sink, thereby achieving the effect of cooling the coolant. The utility model greatly improves the heat dissipation efficiency by the inclined cooling fan 4. The electronic water pump 3 transports the cooled coolant to other heating components on the vehicle. After the coolant flows into the heat exchange structure inside the heating component, it takes out the heat and flows back to the cooling water tank 2.

[0042] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. An integrated liquid cooling module for a passenger car, comprising an expansion kettle (1), a cooling water tank (2), an electronic water pump (3) and a cooling fan (4), characterized in that: The front and rear ends of the heat dissipation water tank (2) are respectively provided with a water tank liquid outlet interface (21) and a water tank liquid inlet interface (22); the input end of the electronic water pump (3) is connected to the outlet end of the cooling liquid circuit; the outlet end of the electronic water pump (3) is respectively connected to the water tank liquid inlet interface (22) and the expansion kettle (1) through a three-way pipe fitting (31); the water tank liquid outlet interface (21) is connected to the inlet end of the cooling liquid circuit; the electronic water pump (3) is fixed to the front side of the heat dissipation water tank (2) through a water pump bracket (5); the expansion kettle (1) is fixed to the rear side of the heat dissipation water tank (2) through a kettle bracket (6); the heat dissipation fan (4) is obliquely arranged above the heat dissipation fan (4) through a fan fixing cover (7); and the air outlet direction of the heat dissipation fan (4) is inclined to enter the heat dissipation water tank (2).

2. The integrated liquid cooling module for a passenger car according to claim 1, characterized in that: The heat dissipation water tank (2) comprises a heat dissipation grid (23), two main frames (24) and two secondary frames (25); the two main frames (24) and the two secondary frames (25) are respectively fixed around the heat dissipation grid (23); a plurality of connection holes (26) are provided on the two main frames (24); coolant enters through the water tank liquid inlet interface (22) and flows into the water tank liquid outlet interface (21) through the heat dissipation grid (23).

3. The integrated liquid cooling module for a passenger car according to claim 1, characterized in that: A first kettle mounting plate (11) is provided on the side wall of the expansion kettle (1), a coolant filling port (12) is provided at the upper side end of the expansion kettle (1), a transparent liquid level hose (13) is provided below the coolant filling port (12), and a liquid replenishing interface (14) is provided at the bottom of the expansion kettle (1).

4. The integrated liquid cooling module for a passenger car according to claim 1, characterized in that: The kettle bracket (6) comprises a second kettle mounting plate (61), a kettle fixing plate (62) extending vertically from one end of the second kettle mounting plate (61), triangular reinforcing ribs (65) are respectively arranged between two side walls of the second kettle mounting plate (61) and two ends of the kettle fixing plate (62), and a avoidance circular hole (63) and four kettle connecting holes (64) are arranged on the second kettle mounting plate (61), and the four kettle connecting holes (64) are evenly distributed around the avoidance circular hole (63).

5. The integrated liquid cooling module for a passenger car according to claim 2, characterized in that: The fan fixing cover (7) comprises a rectangular frame (71), the four inner side walls of the rectangular frame (71) are each provided with a supporting side plate (72) extending upwards, the tops of the four supporting side plates (72) are provided with a fan mounting plate (73) inclined to the rectangular frame (71), the fan mounting plate (73) is provided with a fan avoidance circular hole (74) and four fan connection holes (75), and the four fan connection holes (75) are evenly distributed around the fan avoidance circular hole (74).

6. The integrated liquid cooling module for a passenger car according to claim 5, characterized in that: The heat dissipation water tank (2) further comprises a drain pipe (28) and a first drain interface (27) arranged at the end of the heat dissipation grid (23); the expansion kettle (1) further comprises a second drain interface (15); a semicircular notch (76) adapted to the first drain interface (27) is arranged at the end of the rectangular frame (71); one end of the drain pipe (28) is connected to the first drain interface (27); and the other end of the drain pipe (28) is connected to the second drain interface (15).

7. The integrated liquid cooling module for a passenger car according to claim 5, characterized in that: The included angle between the fan mounting plate (73) and the rectangular frame (71) ranges from 20° to 70°.

8. The integrated liquid cooling module for a passenger car according to claim 2, characterized in that: The air outlet direction of the heat dissipation fan (4) is tangent to the side end surface of the heat dissipation grille (23).

9. The integrated liquid cooling module for a bus according to claim 1, characterized in that: The water pump bracket (5) comprises a water pump fixing plate (51), one end of the water pump fixing plate (51) being vertically extended with a water pump mounting plate (52), both ends of the water pump fixing plate (51) and both ends of the water pump mounting plate (52) being respectively provided with reinforcing plate ribs (53), and both the water pump fixing plate (51) and the water pump mounting plate (52) being provided with a water pump connecting hole (54).

10. The integrated liquid cooling module for a bus according to claim 2, characterized in that: Two shock-absorbing rubber pads connected to the external liquid cooling module cabin are arranged at the bottom of the two main frames (24).

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