Flow distribution structure

Abstract

The utility model discloses a flow distribution structure which comprises a water inlet pipe, a water distribution pipe and a plurality of water conveying pipes, the water inlet pipe and the water distribution pipe are perpendicular to each other and communicated, the water conveying pipes are parallel to the water inlet pipe and communicated with the water distribution pipe, and the diameter of the water conveying pipes is smaller than that of the water inlet pipe and that of the water distribution pipe. According to the flow distribution structure, when the charging modules of the charging piles are cooled, cooling water is distributed to different charging modules through the water distribution pipe, the multiple charging modules can be cooled, the multiple charging piles can be cooled through one cooling device, the cooling efficiency is improved, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and more specifically, to a flow distribution structure. Background Art

[0002] With the gradual advancement and improvement of energy storage technology, the endurance of electric vehicles has been significantly enhanced. In addition, with the improvement of people's living standards and the guidance of government policies, more and more people are choosing electric vehicles. In recent years, the number of electric vehicles in China has grown rapidly. The rapid growth in the number of electric vehicles has also rapidly increased the demand for the number of charging piles. However, due to limitations of factors such as site, the number of charging piles is also subject to certain restrictions. Therefore, improving the charging efficiency of charging piles has become a top priority. The greater the power of the charging pile, the faster the charging speed and the higher the efficiency. However, since the charging pile will generate heat during the charging process, the existing cooling devices of the charging piles mostly use air cooling, and the power of the charging piles is limited.

[0003] Patent document CN 208069427 U discloses a water-cooled charging pile group and a water-cooled charging pile thereof. The water-cooled charging pile includes an inner tank, an outer tank and a heat dissipation pipe for circulating a coolant. The outer tank is covered with a waterproof material layer. The inner tank is fixedly installed in the outer tank, and an assembly gap is formed between the outer wall of the inner tank and the inner wall of the outer tank. The heat dissipation pipe is arranged in the assembly gap, and the heat dissipation pipe is wound and fixed on the outer wall of the inner tank.

[0004] In the prior art, there is no flow distribution device for liquid cooling of charging piles, and a set of cooling devices cannot be used to liquid cool multiple charging piles at the same time.

[0005] Therefore, it is necessary to propose a flow distribution structure to solve the problems existing in the prior art. Utility Model Content

[0006] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0007] To solve the above problems, the utility model provides a flow distribution structure, including a water inlet pipe, a water distribution pipe and a water delivery pipe. The water inlet pipe and the water distribution pipe are arranged perpendicular to each other and connected. A plurality of water delivery pipes are arranged parallel to the water inlet pipe and connected to the water distribution pipe. The diameter of the water delivery pipe is smaller than the diameter of the water inlet pipe and the water distribution pipe.

[0008] Preferably, the plurality of water pipes are arranged in a linear array along the axial direction of the water distribution pipe, and the diameter of each water pipe increases gradually from near to far from the water inlet pipe.

[0009] Preferably, the diameter of the water inlet pipe and the water distribution pipe is 3-5 times the diameter of the water delivery pipe.

[0010] Preferably, the number of water pipes provided is 2-15.

[0011] Preferably, the top surface of the water distribution pipe is higher than the top of the water inlet pipe, and an exhaust valve is arranged through the top surface of the water distribution pipe.

[0012] Preferably, the water inlet pipe, the water distribution pipe and the water delivery pipe are made of metal or high molecular polymer materials.

[0013] Preferably, a filter screen is fixedly arranged on the inner circumferential surface of the water inlet pipe close to the water distribution pipe.

[0014] Preferably, a sewage trough connected to the water inlet pipe is fixedly arranged at the lower part of the water inlet pipe, the sewage trough is a hollow cube, and the inner wall of the sewage trough close to the water distribution pipe and the end face of the filter screen away from the water distribution pipe are in a vertical plane.

[0015] Preferably, the bottom surface of the sewage tank is a downwardly protruding cone, a sewage discharge hole is provided at the center of the bottom surface of the sewage tank, and a sewage discharge valve is fixedly arranged outside the sewage discharge hole.

[0016] Preferably, a valve is provided on each water delivery pipe.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The flow distribution structure described in the utility model utilizes a water distribution pipe to distribute cooling water to different charging modules when cooling the charging modules of the charging pile, so that multiple charging modules can be cooled. A set of cooling devices can be used to cool multiple charging piles, thereby improving cooling efficiency and saving energy.

[0019] The flow distribution structure described in the utility model, other advantages, objectives and features of the utility model will be partially reflected through the following description, and partly will also be understood by technicians in this field through research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the flow distribution structure disclosed in the utility model;

[0022] Figure 2 It is a schematic structural diagram of a cross-section of a water inlet pipe and a sewage tank disclosed in the utility model;

[0023] Figure 3 It is a structural schematic diagram of the filter cleaning assembly disclosed in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the support ring disclosed in the utility model. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0027] like Figure 1-2 As shown, a flow distribution structure, a flow distribution structure, characterized in that it includes a water inlet pipe 1, a water distribution pipe 2 and a water delivery pipe 3, the water inlet pipe 1 and the water distribution pipe 2 are arranged perpendicular to each other and connected, a plurality of water delivery pipes 3 are arranged parallel to the water inlet pipe 1 and connected to the water distribution pipe 2, and the diameter of the water delivery pipe 3 is smaller than the diameter of the water inlet pipe 1 and the water distribution pipe 2.

[0028] The plurality of water pipes 3 are arranged in a linear array along the axial direction of the water distribution pipe 2 , and the diameter of each water pipe 3 gradually increases from near to far from the water inlet pipe 1 .

[0029] Furthermore, the diameters of the water inlet pipe 1 and the water distribution pipe 2 are 3-5 times the diameter of the water delivery pipe 3 .

[0030] Furthermore, the number of water pipes 3 is 2-15.

[0031] Furthermore, the top surface of the water distribution pipe 2 is higher than the top of the water inlet pipe 1 , and an exhaust valve is arranged through the top surface of the water distribution pipe 2 .

[0032] The water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3 are made of metal or high molecular polymer materials.

[0033] The working principle of the above technical solution is: the cooling water in the water tank is transported to the water distribution pipe 2 through the water inlet pipe 1 by a water pump, and the water inlet pipe 1 and the water delivery pipe 3 are fixedly connected to the water distribution pipe respectively. The water distribution pipe 2 is connected with multiple water delivery pipes 3, and the cooling water enters each water delivery pipe 3 after passing through the water distribution pipe, and is transported to each charging module through the water delivery pipe 3. Since the charging module generates heat during the charging process, the cooling water transported by the water delivery pipe 3 is used to cool down each charging module. Since the water delivery pipes 3 are arranged in a straight line on the water distribution pipe 2, the distance between the lower water delivery pipe 3 and the water pump gradually increases, and the pressure of the water inlet of the water delivery pipe 3 will gradually decrease. The different pressures of the water inlets of each water delivery pipe 3 will cause different cooling water flows in each water delivery pipe 3. Therefore, the inner diameter of the water delivery pipe 3 is set to gradually increase in the direction away from the water inlet pipe 1 to ensure that the flow of cooling water in each water delivery pipe 3 is the same. The specific value of the inner diameter of the water pipe can be obtained based on experimental tests or simulations. Different inner diameters have different resistances, so that the flow in each water pipe 3 remains uniform.

[0034] When the water distribution pipe 2 is arranged horizontally, the distance between the water pipe 3 far away from the water inlet pipe 1 and the water pump gradually increases, which will make the pressure at the water inlet of the water pipe 3 farther away from the water inlet pipe 1 lower. When the water distribution pipe 2 is arranged vertically, the pressure formed by the water's own weight caused by the vertical distance between every two water pipes is negligible compared with the pressure drop of the water pressure of the water pump in the water pipe.

[0035] The top surface of the water distribution pipe 2 is higher than the top of the water inlet pipe 1. An exhaust valve is fixedly arranged on the top surface of the water distribution pipe 2 and penetrates the top surface of the water distribution pipe 2. The air in the cooling water can be discharged so that the air cannot enter the water delivery pipe 3, thereby preventing the air from entering and reducing the cooling effect of the cooling water. The exhaust valve is fixedly connected to the top surface of the water distribution pipe. The exhaust valve can be a manual exhaust valve or an automatic exhaust valve suitable for the flow distribution structure among the general exhaust valves.

[0036] The water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3 are made of metal or high molecular polymer materials. The water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3 are made of the same material, which is convenient for connecting the water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3. When using metal materials, the inner walls of the water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3 can be coated with anti-corrosion materials to improve the service life of the water inlet pipe 1, the water distribution pipe 2 and the water delivery pipe 3.

[0037] There is no flow distribution device for liquid cooling multiple charging piles at the same time in the prior art. The existing water distributor (such as the water distributor disclosed in patent CN 220523561U) has a complex structure and is not suitable for the flow distribution of cooling water for charging piles.

[0038] Beneficial effects of the above technical solution:

[0039] The flow distribution structure described in the utility model utilizes a water distribution pipe to distribute cooling water to different charging modules when cooling the charging modules of the charging pile, so that multiple charging modules can be cooled. A set of cooling devices can be used to cool multiple charging piles, thereby improving cooling efficiency and saving energy.

[0040] In one embodiment, a filter screen 4 is fixedly disposed on the inner circumferential surface of the water inlet pipe 1 close to the water distribution pipe 2 .

[0041] A sewage trough 5 connected to the water inlet pipe 1 is fixedly arranged at the lower part of the water inlet pipe 1. The sewage trough 5 is a hollow cube. The inner wall of the sewage trough 5 close to the water distribution pipe 2 and the end face of the filter screen 4 away from the water distribution pipe 2 are in a vertical plane.

[0042] The bottom surface of the sewage tank 5 is in a downwardly protruding cone shape. A sewage discharge hole 6 is provided at the center of the bottom surface of the sewage tank 5 , and a sewage discharge valve is fixedly arranged outside the sewage discharge hole 6 .

[0043] The working principle of the above technical solution is as follows: in order to prevent impurities in the coolant from entering the water delivery pipe 3 and causing blockage, a filter screen 4 is fixedly arranged on the inner circumferential surface of the water inlet pipe near the water distribution pipe to filter impurities in the cooling water. A sewage trough 5 penetrating the lower wall of the water inlet pipe and connected to the water inlet pipe 1 is arranged at the lower part of the water inlet pipe 1 on the side of the filter screen 4 away from the water distribution pipe 2, so that the impurities can fall into the sewage trough 5 after being filtered by the filter screen 4. The lower bottom surface of the sewage trough 5 is a downwardly protruding cone, and a sewage hole 6 is provided at the center of the lower bottom surface of the sewage trough. A sewage valve is fixedly arranged on the outside of the sewage hole 6. The sewage valve can select a ball valve of a size suitable for the sewage hole in general equipment.

[0044] A transparent observation window can be set on the side of the sewage tank 6 to observe whether the impurities in the sewage tank need to be discharged. The sewage valve can also be opened regularly to discharge sewage. After the sewage valve is opened, the impurities in the sewage tank are discharged under the action of water pressure until the sewage valve is closed after there are no impurities.

[0045] In one embodiment, each water pipe 3 is provided with a valve.

[0046] The working principle of the above technical solution is: by setting a valve on each water pipe 3, one water pipe 3 can be closed separately. When individual charging piles are inspected and repaired, only the water pipe of a single charging pile needs to be closed, which will not affect other charging piles.

[0047] In one embodiment, a filter cleaning assembly is also included, which includes a support ring 7 fixedly arranged on the inner circumferential surface of the water inlet pipe 1 on the side of the sewage trough 5 away from the filter 4, the support ring 7 is arranged parallel to the filter 4, and an impeller shaft 8 is rotatably arranged at the center position of the support ring 7. The impeller is fixedly arranged at the end of the impeller shaft 8 away from the filter 4, and a brush 9 is fixedly arranged at the end of the impeller shaft 8 close to the filter, and the bristles of the brush 9 are in contact with the filter 4.

[0048] The support ring 7 includes an outer ring 10, an inner ring 11, and radially fixedly connected spokes 12 between the outer ring and the inner ring. The outer ring is fixedly arranged on the inner circumferential surface of the water inlet pipe 1, one end of the spokes 12 is fixedly connected to the inner wall of the outer ring, and the other end of the spokes 12 is fixedly connected to the outer wall of the inner ring 11. Three spokes 12 are fixedly arranged along the circumferential direction of the outer wall of the inner ring. The impeller shaft 8 and the inner ring 11 are rotatably arranged, and a waterproof needle bearing can be arranged between the impeller shaft 8 and the inner circumferential surface of the inner ring 11.

[0049] The working principle of the above technical solution is as follows: due to the effect of water pressure of the water pump, the impurities filtered by the filter 4 will stick to the surface of the filter under the pressure of the water pressure and cannot fall into the sewage tank. The impurities attached to the filter 4 will affect the passage of cooling water, and too many impurities will cause blockage. A support ring 7 is fixedly arranged on the side of the sewage tank away from the filter in the water inlet pipe. The impeller shaft is rotated at the center of the support ring 7. The impeller is fixedly arranged at the end of the impeller shaft 8 away from the filter 4. A brush 9 is fixedly arranged at the end of the impeller shaft 8 close to the filter. The bristles of the brush 9 are in contact with the filter 4. The cooling water in the water inlet pipe 1 will push the impeller to rotate during the flow. The impeller is driven by the impeller shaft 8 to rotate the brush 9. The brush 9 makes a circular motion. The plane crossed by the bristles of the brush 9 is parallel to the plane of the filter 4, so the impurities on the filter 4 are brushed off and fall into the sewage tank.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A flow distribution structure, characterized in that: The invention comprises a water inlet pipe (1), a water distribution pipe (2) and a water delivery pipe (3); the water inlet pipe (1) and the water distribution pipe (2) are arranged perpendicular to each other and are connected; a plurality of water delivery pipes (3) are arranged parallel to the water inlet pipe (1) and are connected to the water distribution pipe (2); and the diameter of the water delivery pipe (3) is smaller than the diameter of the water inlet pipe (1) and the water distribution pipe (2).

2. The flow distribution structure according to claim 1, characterized in that: The plurality of water delivery pipes (3) are arranged in a linear array along the axial direction of the water distribution pipe (2), and the diameters of the water delivery pipes (3) gradually increase from near to far from the water inlet pipe (1).

3. The flow distribution structure according to claim 1, characterized in that: The diameters of the water inlet pipe (1) and the water distribution pipe (2) are 3-5 times the diameter of the water delivery pipe (3).

4. The flow distribution structure according to claim 3, characterized in that: The number of water delivery pipes (3) is 2-15.

5. The flow distribution structure according to claim 1, characterized in that: The top surface of the water distribution pipe (2) is higher than the top of the water inlet pipe (1), and an exhaust valve is arranged penetrating the top surface of the water distribution pipe (2).

6. The flow distribution structure according to claim 1, characterized in that: The water inlet pipe (1), the water distribution pipe (2) and the water delivery pipe (3) are made of metal or high molecular polymer materials.

7. The flow distribution structure according to claim 1, characterized in that: A filter screen (4) is fixedly arranged on the inner circumferential surface of the water inlet pipe (1) close to the water distribution pipe (2).

8. The flow distribution structure according to claim 7, characterized in that: A sewage trough (5) connected to the water inlet pipe (1) is fixedly arranged at the lower part of the water inlet pipe (1); the sewage trough (5) is in the shape of a hollow cube; the inner wall of the sewage trough (5) close to the water distribution pipe (2) and the end surface of the filter screen (4) away from the water distribution pipe (2) are in a vertical plane.

9. The flow distribution structure according to claim 8, characterized in that: The bottom surface of the sewage tank (5) is in a downwardly protruding cone shape, a sewage discharge hole (6) is provided at the center of the bottom surface of the sewage tank (5), and a sewage discharge valve is fixedly arranged outside the sewage discharge hole (6).

10. The flow distribution structure according to claim 4, characterized in that: Each water delivery pipe (3) is provided with a valve.

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