An ion filter device for battery coolant

Abstract

The present invention relates to an ion filtering device for battery coolant, the device comprises an upper shell, a lower shell and a diverter filter unit arranged inside the lower shell, the diverter filter unit comprises an ion filter element, a diverter plate and a diverter cavity arranged between the ion filter element and the lower shell, a first interface is provided on the upper shell, and a second interface is provided at the bottom of the lower shell, the battery coolant enters the upper shell through the first interface, and is discharged through the second interface after the ions are removed by the diverter filter unit. Compared with the prior art, the present invention provides a diverter plate so that the device can meet the ion filtering requirements of the battery coolant while avoiding excessive pressure drop of the battery coolant, and can determine a suitable diverter ratio according to actual needs by changing the aperture of the diverter plate channel hole and the diverter hole, thereby accurately controlling the filtering efficiency of the battery coolant and the pressure loss during filtering, and the installation method is flexible and stable.

Description

Technical Field

[0001] The invention belongs to the technical field of electric vehicles and relates to an ion filtering device for battery coolant. Background Art

[0002] China is the world's largest automobile consumer. In the past decade, the development of China's automobile industry has attracted worldwide attention. As more and more people begin to pay attention to the earth's environment, the global automobile industry has collectively pointed to "environmental protection, energy saving, and high efficiency". China has also begun to vigorously develop the electric vehicle industry.

[0003] The heart of electric vehicles is the battery, which is developing rapidly today. The battery's endurance directly affects the range of electric vehicles. Therefore, the performance of the battery is directly related to the performance of the electric vehicle, just as the importance of the internal combustion engine to the fuel vehicle. However, since the battery will generate heat during use, as the battery is used for a longer time, its temperature gradually increases, the performance of the battery will gradually decrease, and thus affect the performance of the electric vehicle, so the battery must be cooled. In the process of cooling the battery, the battery coolant is continuously circulated, and the ions therein will continue to accumulate and increase, so that the conductivity of the battery coolant is enhanced. If the ions are not properly separated, it may cause destructive corrosion to the battery housing and surrounding components, and then the cost of use will increase due to the replacement of related components. At present, the filtration of ions in battery coolant in the market is mostly to make the battery coolant pass through an ion filter, and use the ion filter to remove the ions in the battery coolant. However, since in this method, all battery coolants need to pass through the filter material of the ion filter, the pressure loss of the battery coolant is large, and the circulation efficiency of the battery coolant is reduced. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an ion filtering device for battery coolant which has small pressure loss and is easy to install.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An ion filter device for battery coolant, the device comprises an upper shell, a lower shell and a shunt filter unit arranged inside the lower shell, the shunt filter unit comprises an ion filter element, a shunt plate and a shunt cavity arranged between the ion filter element and the lower shell, the upper shell is provided with a first interface, the bottom of the lower shell is provided with a second interface, the battery coolant enters the upper shell through the first interface, and is discharged through the second interface after the ions are removed by the shunt filter unit.

[0007] The first interface is a liquid inlet, and the second interface is a liquid outlet.

[0008] The upper shell and the lower shell are fixedly connected by welding.

[0009] As a preferred technical solution, the welding is rotary friction welding.

[0010] A diverter plate channel hole is provided at the center of the diverter plate, and a plurality of diverter holes are provided on the diverter plate. The diverter hole is connected to the second interface through a diverter cavity. The upper end of the ion filter element is connected to the diverter plate channel hole, and the lower end is connected to the second interface. A portion of the battery coolant flows into the interior of the ion filter element through the diverter plate channel hole, and the ions are removed by the ion filter element, and then discharged from the second interface; the other portion flows to the second interface through the diverter hole and the diverter cavity in turn, and is discharged from the second interface. According to computer-aided engineering (CAE) simulation, the apertures of the diverter plate channel hole and the diverter hole are calculated respectively, and the appropriate diversion ratio is determined to ensure that the pressure drop of the battery coolant is reduced as much as possible while meeting the filtration efficiency.

[0011] The material of the diverter plate is preferably stainless steel.

[0012] The center of the diverter disc is provided with a diverter disc boss which is internally connected to the diverter disc channel hole, the upper end of the ion filter element is provided with a filter element liquid inlet channel adapted to the diverter disc boss, and the outer side surface of the diverter disc boss is connected to the inner side surface of the filter element liquid inlet channel through a thread. The diverter disc boss is an annular boss, the outer side surface of the diverter disc boss is provided with an external thread, and the inner side surface of the filter element liquid inlet channel is provided with an internal thread, and the diverter disc and the ion filter element are fixedly connected together through a threaded connection.

[0013] The top of the lower shell is provided with a first lower shell positioning boss, and the diverter plate is provided with a diverter plate mounting hole adapted to the first lower shell positioning boss. The diverter plate mounting hole is aligned with the first lower shell positioning boss for installation, so that the diverter plate is clamped on the top of the lower shell, and then the diverter plate is fixedly connected to the lower shell by a hot riveting process.

[0014] The inner wall of the lower shell is provided with a lower shell positioning rib along the axial direction of the lower shell, and the outer wall of the ion filter element is provided with a filter element positioning groove matched with the lower shell positioning rib along the axial direction of the ion filter element. The lower shell positioning rib is inserted into the filter element positioning groove to position and assist in fixing the ion filter element, thereby preventing the ion filter element from vibrating or moving during operation.

[0015] As a preferred technical solution, the bottom inner side of the lower shell is provided with a lower shell bottom positioning rib along the radial direction of the lower shell, and the bottom of the ion filter element is provided with a filter element bottom positioning groove along the radial direction of the ion filter element, which is adapted to the lower shell bottom positioning rib. By inserting the lower shell bottom positioning rib into the filter element bottom positioning groove, the ion filter element is further positioned and auxiliary fixed.

[0016] The lower shell is provided with a clamp installation unit outside, and the clamp installation unit includes a clamp arranged outside the lower shell and a mounting plate arranged on the clamp. After the clamp is fixedly connected to the lower shell, the device is installed on the installation surface through the mounting plate.

[0017] The outer wall of the lower shell is provided with a second lower shell positioning boss, and the clamp is provided with a clamp positioning hole adapted to the second lower shell positioning boss. The second lower shell positioning boss is clamped into the clamp positioning hole to fix the clamp to the lower shell.

[0018] The mounting plate is provided with a first mounting plate mounting hole and a second mounting plate mounting hole, respectively, and the clamp is provided with a clamp mounting hole matched with the first mounting plate mounting hole. The second mounting plate mounting hole is matched with the mounting surface mounting hole provided on the mounting surface. The screws are passed through the clamp mounting hole and the first mounting plate mounting hole at the same time to fix the mounting plate and the clamp; the screws are passed through the second mounting plate mounting hole and the mounting surface mounting hole at the same time to fix the mounting plate and the mounting surface, and the device can be fixedly mounted on the mounting surface. When the mounting surface mounting hole is a blind hole, if there is no mounting plate, the device cannot be mounted on the mounting surface only through the clamp mounting hole, so the mounting plate is provided, and the first mounting plate mounting hole and the second mounting plate mounting hole are respectively provided on the mounting plate, the mounting plate is first mounted on the clamp through the cooperation of the first mounting plate mounting hole and the clamp mounting hole, and then the device is mounted on the mounting surface through the cooperation of the second mounting plate mounting hole and the mounting surface mounting hole, so that the installation of the device is more convenient and more flexible.

[0019] As a preferred technical solution, there are two first mounting plate mounting holes and two clamp mounting holes respectively.

[0020] The first mounting plate mounting hole and the clamp mounting hole are both long strip holes. When the two long strip holes are matched, it is no longer required that the two holes are completely aligned. If the two holes rotate relative to each other, as long as the overlapping part of the two holes can accommodate the screw to pass through, the two holes can be fixed together by screws. Therefore, the long strip-shaped first mounting plate mounting hole and clamp mounting hole are used, so that the mounting plate and the clamp can rotate relative to each other, so that the direction of the clamp is adjustable, and then the direction of the first interface and the second interface can be freely adjusted, making the installation method of the device more flexible.

[0021] A first interface reinforcement bushing is provided in the first interface, and a second interface reinforcement bushing is provided in the second interface. Since a hose and a hose clamp need to be installed at both the first interface and the second interface, and the pipe joints on the first interface and the second interface cannot withstand the extrusion force, a first interface reinforcement bushing and a second interface reinforcement bushing are provided in the first interface and the second interface respectively to improve their strength, facilitate the installation of the hose, and ensure long-term stable operation.

[0022] The first interface reinforcement bushing and the second interface reinforcement bushing are preferably made of stainless steel. The first interface reinforcement bushing and the second interface reinforcement bushing are respectively installed in the first interface and the second interface by cold pressing.

[0023] When the present invention is actually used, the battery coolant enters the interior of the upper shell from the first interface, and a part of it flows into the interior of the ion filter element through the diverter plate channel hole and the filter element liquid inlet channel in turn, and the ions are removed by the ion filter element, and then discharged from the second interface; the other part flows to the second interface through the diverter hole and the diverter cavity in turn, and is discharged from the second interface. When installing the device, first, the clamp is fixedly connected to the lower shell through the cooperation of the second lower shell positioning boss and the clamp positioning hole; then, the mounting plate is fixedly connected to the clamp through the cooperation of the first mounting plate mounting hole and the clamp mounting hole; then, the mounting plate is fixedly connected to the mounting surface through the cooperation of the second mounting plate mounting hole and the mounting surface mounting hole, so that the device is installed on the mounting surface.

[0024] Compared with the prior art, the present invention has the following characteristics:

[0025] 1) By setting up a diverter disk, the device can not only meet the requirements of ion filtration of the battery coolant, but also avoid excessive pressure drop of the battery coolant. According to actual needs, the appropriate diversion ratio can be determined by changing the aperture of the diverter disk channel hole and the diverter hole, thereby accurately controlling the filtration efficiency of the battery coolant and the pressure loss during filtration;

[0026] 2) Through the clamp installation unit, the present invention can be flexibly and easily installed on different types of installation surfaces, meeting the requirements of various installation surfaces, expanding the application scope of the present invention, and at the same time, the directions of the first interface and the second interface can be freely adjusted, making the installation method of the device more flexible;

[0027] 3) Through the cooperation between the positioning rib of the lower shell and the positioning groove of the filter element, it is convenient to position and auxiliary fix the ion filter element to prevent the ion filter element from vibrating or moving during operation, and through the first interface reinforcement sleeve and the second interface reinforcement sleeve, the strength of the device is improved, thereby ensuring long-term stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a schematic diagram of the three-dimensional decomposition structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the diverter plate in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the mounting plate in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the present invention in a working state;

[0032] Description of the markings in the figure:

[0033] 1—upper shell, 2—diverter plate, 21—diverter plate channel hole, 22—diverter hole, 23—diverter plate boss, 24—diverter plate mounting hole, 3—ion filter element, 31—filter element liquid inlet channel, 4—clamp, 41—clamp positioning hole, 5—lower shell, 51—first lower shell positioning boss, 52—second lower shell positioning boss, 6—second interface reinforcement bushing, 7—first interface reinforcement bushing, 8—mounting plate, 81—first mounting plate mounting hole, 82—second mounting plate mounting hole, 9—first interface, 10—second interface. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] Example:

[0036] like Figure 1 An ion filtering device for battery coolant is shown, the device includes an upper shell 1, a lower shell 5 and a diverter filter unit arranged inside the lower shell 5, the diverter filter unit includes an ion filter element 3, a diverter plate 2 and a diverter cavity arranged between the ion filter element 3 and the lower shell 5, which are respectively arranged inside the lower shell 5. A first interface 9 is provided on the upper shell 1, and a second interface 10 is provided at the bottom of the lower shell 5. The battery coolant enters the upper shell 1 through the first interface 9, and is discharged from the second interface 10 after the ions are removed by the diverter filter unit.

[0037] like Figure 2As shown, a diverter plate channel hole 21 is provided at the center of the diverter plate 2, and a plurality of diverter holes 22 are also provided on the diverter plate 2. The diverter holes 22 are connected to the second interface 10 through the diverter cavity. The upper end of the ion filter element 3 is connected to the diverter plate channel hole 21, and the lower end is connected to the second interface 10. A diverter plate boss 23 connected to the diverter plate channel hole 21 is also provided at the center of the diverter plate 2. The upper end of the ion filter element 3 is provided with a filter element liquid inlet channel 31 adapted to the diverter plate boss 23, and the outer side surface of the diverter plate boss 23 is connected to the inner side surface of the filter element liquid inlet channel 31 through threads. A first lower shell positioning boss 51 is provided at the top of the lower shell 5, and a diverter plate mounting hole 24 adapted to the first lower shell positioning boss 51 is provided on the diverter plate 2. The inner wall of the lower shell 5 is provided with a lower shell positioning rib along the axial direction of the lower shell 5 , and the outer wall of the ion filter element 3 is provided with a filter element positioning groove along the axial direction of the ion filter element 3 to match the lower shell positioning rib.

[0038] A clamp mounting unit is provided on the outside of the lower shell 5, and the clamp mounting unit includes a clamp 4 provided on the outside of the lower shell 5 and a mounting plate 8 provided on the clamp 4. A second lower shell positioning boss 52 is provided on the outer wall of the lower shell 5, and a clamp positioning hole 41 adapted to the second lower shell positioning boss 52 is provided on the clamp 4. Figure 3 As shown, the mounting plate 8 is provided with a first mounting plate mounting hole 81 and a second mounting plate mounting hole 82, and the clamp 4 is provided with a clamp mounting hole matched with the first mounting plate mounting hole 81. The first mounting plate mounting hole 81 and the clamp mounting hole are both long strip holes. The second mounting plate mounting hole 82 is matched with the mounting surface mounting hole provided on the mounting surface.

[0039] A first interface reinforcing bushing 7 is disposed in the first interface 9 , and a second interface reinforcing bushing 6 is disposed in the second interface 10 .

[0040] When this device is used in actual applications, Figure 4 As shown, the battery coolant enters the upper shell 1 from the first interface 9, and a part of it flows into the ion filter element 3 through the diverter plate channel hole 21 and the filter element liquid inlet channel 31 in sequence, and the ions are removed by the ion filter element 3, and then discharged from the second interface 10; the other part flows to the second interface 10 through the diverter hole 22 and the diverter cavity in sequence, and is discharged from the second interface 10. When installing the device, the clamp 4 is first fixedly connected to the lower shell 5 through the cooperation of the second lower shell positioning boss 52 and the clamp positioning hole 41; then, the mounting plate 8 is fixedly connected to the clamp 4 through the cooperation of the first mounting plate mounting hole 81 and the clamp mounting hole; then, the mounting plate 8 is fixedly connected to the mounting surface through the cooperation of the second mounting plate mounting hole 82 and the mounting surface mounting hole, that is, the device is installed on the mounting surface.

[0041] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. An ion filtration device for battery coolant, characterized in that: The device comprises an upper shell (1), a lower shell (5), and a flow-dividing filter unit arranged inside the lower shell (5); the flow-dividing filter unit comprises an ion filter element (3) and a flow-dividing disk (2) arranged inside the lower shell (5) respectively, and a flow-dividing cavity arranged between the ion filter element (3) and the lower shell (5); a first interface (9) is arranged on the upper shell (1), and a second interface (10) is arranged at the bottom of the lower shell (5); the battery coolant enters the upper shell (1) through the first interface (9), is removed by the flow-dividing filter unit, and is discharged through the second interface (10); A diverter plate channel hole (21) is provided at the center of the diverter plate (2), and a plurality of diverter holes (22) are also provided on the diverter plate (2), wherein the diverter holes (22) are connected to the second interface (10) via a diverter cavity, and the upper end of the ion filter element (3) is connected to the diverter plate channel hole (21), and the lower end is connected to the second interface (10); A portion of the battery coolant flows into the interior of the ion filter element (3) through the shunt plate channel hole (21), where the ions are removed by the ion filter element (3) and then discharged from the second interface (10); another portion flows sequentially through the shunt hole (22) and the shunt cavity to the second interface (10) and is discharged from the second interface (10); A clamp installation unit is provided on the outside of the lower shell (5), and the clamp installation unit comprises a clamp (4) arranged on the outside of the lower shell (5) and a mounting plate (8) arranged on the clamp (4).

2. The ion filtration device for battery coolant according to claim 1, characterized in that: A diverter disc boss (23) is provided at the center of the diverter disc (2) and is internally connected to the diverter disc channel hole (21); a filter element liquid inlet channel (31) adapted to the diverter disc boss (23) is provided at the upper end of the ion filter element (3); and the outer side surface of the diverter disc boss (23) is connected to the inner side surface of the filter element liquid inlet channel (31) via threads.

3. The ion filtration device for battery coolant according to claim 1, characterized in that: A first lower shell positioning boss (51) is provided at the top end of the lower shell (5), and a diverter plate mounting hole (24) matching the first lower shell positioning boss (51) is provided on the diverter plate (2).

4. The ion filtration device for battery coolant according to claim 1, characterized in that: The inner wall of the lower shell (5) is provided with a lower shell positioning rib along the axial direction of the lower shell (5), and the outer wall of the ion filter element (3) is provided with a filter element positioning groove along the axial direction of the ion filter element (3) that matches the lower shell positioning rib.

5. The ion filtration device for battery coolant according to claim 1, characterized in that: A second lower shell body positioning boss (52) is provided on the outer wall of the lower shell body (5), and a clamp positioning hole (41) matching the second lower shell body positioning boss (52) is opened on the clamp (4).

6. The ion filtration device for battery coolant according to claim 1, characterized in that: The mounting plate (8) is provided with a first mounting plate mounting hole (81) and a second mounting plate mounting hole (82), respectively, and the clamp (4) is provided with a clamp mounting hole that matches the first mounting plate mounting hole (81).

7. The ion filtration device for battery coolant according to claim 6, characterized in that: The first mounting plate mounting hole (81) and the clamp mounting hole are both long strip holes.

8. An ion filtration device for battery coolant according to any one of claims 1 to 7, characterized in that: A first interface reinforcing bushing (7) is provided in the first interface (9), and a second interface reinforcing bushing (6) is provided in the second interface (10).

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