Electromagnetic driving device for liquid cooling flow channel of charging pile

Abstract

The utility model relates to the technical field of water-cooling heat dissipation, and discloses an electromagnetic driving device for a liquid cooling flow channel of a charging pile, which is arranged on the outer side of the liquid cooling flow channel and comprises a mounting seat, the mounting seat is configured to be an insulator, a rectangular channel is arranged in the mounting seat, two ends of the rectangular channel are communicated, and the liquid cooling flow channel can pass through the rectangular channel. Electrode plates are arranged on the two opposite sides of the rectangular channel on the mounting seat, a uniform electric field is formed between the two electrode plates, a plurality of coil assemblies are arranged on the other two sides of the rectangular channel on the mounting seat, and the coil assemblies form a constant magnetic field orthogonal to the uniform electric field after being electrified; and a shell is arranged on the outer side of the mounting seat. The utility model has the beneficial effects that the secondary variable flow of the cooling water can be accurately controlled, the boundary effect of the cooling water in the liquid cooling flow channel is weakened, and the heat exchange effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling and heat dissipation, in particular to an electromagnetic driving device for a liquid cooling channel of a charging pile. Background Art

[0002] With the continuous surge in the electric power of high-voltage DC charging piles, in order to ensure the normal operation of its internal precision electronic components, water-cooled heat dissipation equipment is used to carry out targeted heat dissipation of each heating module inside the charging pile. Its heat dissipation power is significantly improved compared to traditional air-cooled heat dissipation equipment. In actual use, after the cooling water passes through the water pump for one flow change, the cooling water needs to be changed twice before entering the radiator. Currently, the secondary flow change is usually controlled by a valve. The water valve usually only changes the flow rate and it is difficult to accurately control the flow rate. At the same time, due to the viscosity of the fluid, when the cooling water flows in the liquid cooling channel, it is inevitable to form a boundary layer that hinders the relative movement of the coolant, so that the flow rate of the cooling water at the inner wall of the liquid cooling channel is less than the flow rate of the middle layer, resulting in a reduction in the average flow rate of the coolant, thereby reducing the heat exchange efficiency between the cooling water and the external heat source, hindering the further improvement of the heat dissipation performance of the liquid cooling heat dissipation equipment. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides an electromagnetic driving device for the liquid cooling channel of a charging pile, which can accurately control the secondary flow of cooling water, weaken the boundary effect of cooling water in the liquid cooling channel, and improve the heat exchange effect.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An electromagnetic drive device for a liquid cooling channel of a charging pile is arranged on the outside of the liquid cooling channel, and includes a mounting seat, the mounting seat is configured as an insulator, a rectangular channel with two ends through is provided in the mounting seat for the liquid cooling channel to pass through, electrode plates are provided on opposite sides of the rectangular channel on the mounting seat, a uniform electric field is formed between the two electrode plates, and a plurality of groups of coil assemblies are provided on the remaining two sides of the rectangular channel on the mounting seat, and a constant magnetic field orthogonal to the uniform electric field is formed when the coil assemblies are energized; a shell is provided on the outside of the mounting seat. This electromagnetic drive device is installed on the outside of the liquid cooling channel at the cooling water inlet end of the radiator. The cooling system performs primary flow conversion through a water pump, etc., and performs secondary flow conversion through the electromagnetic drive device. Water molecules are polarized into electric dipoles under the action of a uniform electric field, and a constant magnetic field exerts an Ampere force on the electric dipoles. This Ampere force can overcome or weaken the resistance of the inner wall of the liquid cooling channel to water molecules, so that the flow rate of the cooling water in the liquid cooling channel increases and tends to be uniform, effectively improving the heat transfer coefficient; at the same time, the field strength and direction of the uniform electric field (constant magnetic field) can be changed by changing the current, thereby changing the flow rate of the cooling water to meet the heat absorption requirements, and the adjustment is convenient and accurate.

[0006] Preferably, the mounting seat includes two sets of seat bodies, the cross-section of the seat bodies is U-shaped, the opening ends of the two sets of seat bodies are butted together to form the rectangular channel inside, the electrode plates are arranged on the outer sides of the two sets of seat bodies and are respectively fixedly connected to the two sets of seat bodies; the outer shell includes two sets of shells, the opening ends of the two sets of shells are butt-connected. The mounting seat and the outer shell are both of two sets of assembled structures, which can be quickly installed on the outside of the existing liquid cooling channel, and the installation is very convenient.

[0007] Preferably, a slot is provided at the open end of the seat, an insulating plate is provided in the slot, the insulating plates are respectively inserted into the slots of the two seat bodies, and the electrode plates are connected to the seat bodies by bolts. After the insulating plates are connected to the slots, the seat bodies are connected in pairs by the electrode plates, so that the overall connection is more stable.

[0008] Preferably, the outer bottom surface of the seat body is provided with a plurality of coil positioning grooves, the coil assembly is arranged in the coil positioning grooves, the outer bottom surface of the seat body is provided with a positioning pressure plate for positioning the coil body, and the positioning pressure plate is bolted to the seat body.

[0009] Preferably, the coil assembly is configured as a Helmholtz coil group, each of which includes two parallel coil bodies; the radius of the coil body in the same group of Helmholtz coil groups is smaller than the distance between the coil bodies, so that the magnetic field strength in the rectangular channel gradually increases from the middle to the edge. Since the cooling water has a large resistance at the boundary and a small resistance in the middle in the liquid cooling channel, the magnetic field is set to have a large strength near the edge and a small strength in the middle, thereby making the cooling water flow rate at the boundary and the middle part of the liquid cooling channel tend to be uniform.

[0010] Preferably, the strength of the uniform electric field is set to 0.12×10 -11 -0.20×10 -11 N / C, the constant magnetic field strength is configured to be 0.40×10 -12 -0.46×10 -12 T.

[0011] Preferably, the electrode plate is connected to a first wire, the first wire is provided with a first connector extending out of the shell; the coil assembly is connected to a second wire, the second wire is provided with a second connector extending in and out of the shell.

[0012] Preferably, the housing is provided with a plurality of heat dissipation slots, which increase the heat dissipation effect of the housing.

[0013] Therefore, the utility model has the beneficial effects of being able to accurately control the secondary flow change of cooling water, weaken the boundary effect of cooling water in the liquid cooling channel, and improve the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the installation of the utility model and the liquid cooling channel.

[0016] Figure 3 for Figure 2 Exploded diagram.

[0017] Figure 4 It is a schematic diagram of the installation of the mounting base and the liquid cooling channel.

[0018] Figure 5 It is a schematic diagram of the end face structure of the mounting base.

[0019] Figure 6 for Figure 4 Exploded diagram.

[0020] Figure 7 Schematic diagram of the state of water molecules in the liquid cooling channel.

[0021] In the figure: liquid cooling channel 10, mounting seat 20, rectangular channel 200, seat body 21, card slot 210, coil positioning slot 211, insulating plate 22, positioning pressure plate 23, electrode plate 30, first wire 31, first connector 32, coil assembly 40, coil body 400, second wire 41, second connector 42, shell 50, dry heat dissipation slot 500, shell 51, water molecules 60. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0023] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0024] like Figure 1-Figure 6The electromagnetic drive device for the liquid cooling channel of a charging pile shown in the figure is arranged on the outside of the liquid cooling channel 10, including a mounting seat 20, the mounting seat 20 is configured as an insulator, and a rectangular channel 200 with two ends through is provided in the mounting seat 20 for the liquid cooling channel to pass through, and electrode plates 30 are provided on the mounting seat 20 on the opposite sides of the rectangular channel, and a uniform electric field is formed between the two electrode plates 30, and a plurality of groups of coil assemblies 40 are provided on the other two sides of the rectangular channel on the mounting seat 20, and a constant magnetic field orthogonal to the uniform electric field is formed when the coil assemblies are energized; a housing 50 is provided on the outside of the mounting seat 20. A first wire 31 is connected to the electrode plate 30, and a first connector 32 extending out of the housing is provided on the first wire; a second wire 41 is connected to the coil assembly 40, and a second connector 42 extending into and out of the housing is provided on the second wire. A plurality of heat dissipation slots 500 are provided on the housing 50.

[0025] The mounting base 20 includes two groups of base bodies 21, the cross-section of the base body 21 is U-shaped, the open ends of the two groups of base bodies 21 are butt-jointed to form a rectangular channel inside, the electrode plate 30 is arranged on the outer side surfaces of the two groups of base bodies and is fixedly connected to the two groups of base bodies respectively; the outer shell 50 includes two groups of shells 51, the open ends of the two groups of shells are butt-jointed.

[0026] A slot 210 is provided at the open end of the seat 21, and an insulating plate 22 is provided in the slot. The insulating plates are respectively inserted into the slots of the two seats, and the electrode plate 30 is connected to the seat by bolts; the electrode plate in this embodiment is configured as a copper plate.

[0027] The outer bottom surface of the base 21 is provided with a plurality of coil positioning grooves 211, and the coil assembly 40 is arranged in the coil positioning grooves. The outer bottom surface of the base 21 is provided with a positioning plate 23 for positioning the coil body, and the positioning plate 23 is bolted to the base 21. In this embodiment, the coil assembly 40 is configured as a Helmholtz coil group, and each Helmholtz coil group includes two parallel distributed coil bodies 400; the radius of the coil body 400 in the same group of Helmholtz coil groups is smaller than the distance between the coil bodies, so that the magnetic field strength in the rectangular channel gradually increases from the middle to the edge. In some embodiments, the strength of the uniform electric field is configured to be 0.12×10 -11 -0.20×10 -11 N / C, constant magnetic field strength configuration is 0.40×10 -12 -0.46×10 -12 T, the strength of the uniform electric field in this embodiment is configured to be 0.16×10 -11 N / C, constant magnetic field strength configuration is 0.42×10 -12 , technicians in this field can change the current size to adjust the strength of the electric field and the magnetic field according to actual needs to meet the secondary flow conversion requirements of the cooling water.

[0028] In conjunction with the accompanying drawings, the principle of the utility model is as follows: Figure 3 As shown, the electromagnetic drive device is installed on the outside of the liquid cooling channel 10 at the entrance end of the radiator; Figure 7 As shown, the upper electrode plate is set as a positive electrode plate, and the lower electrode plate is set as a negative electrode plate, and a gap is formed between the two electrode plates. Figure 7 The uniform electric field shown in Figure 7 In the constant magnetic field from right to left, water molecules 60 are polarized in the electric field to form electric dipoles. The hydrogen atoms in the water molecules are positively charged and face the negative plate on the lower side. The oxygen atoms in the water molecules are negatively charged and face the positive plate on the upper side. The directional movement of the electric dipoles in the electric field forms a microcurrent. The magnetic field exerts an Ampere force on the electric dipoles. According to the left-hand rule, the water molecules move along the axial direction of the liquid cooling channel, and the movement speed of the water molecules is affected by the electric field strength and the magnetic field strength. The flow rate of the cooling water is adjusted by changing the electric field strength and the magnetic field strength, so that the flow rate of the cooling water can be accurately controlled (i.e., secondary flow conversion). At the same time, under the action of the Ampere force, the cooling water can weaken the boundary effect and improve the heat exchange effect. Moreover, this type of electromagnetic drive device is very easy to install and can be directly installed on the existing liquid cooling channel, which is very convenient to use.

[0029] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0030] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. An electromagnetic drive device for a liquid cooling channel of a charging pile, arranged on the outside of the liquid cooling channel, characterized in that: It includes a mounting base, which is configured as an insulator. A rectangular channel with two ends through is provided in the mounting base for the liquid cooling channel to pass through. Electrode plates are provided on the mounting base on opposite sides of the rectangular channel to form a uniform electric field between the two electrode plates. Several groups of coil assemblies are provided on the remaining two sides of the rectangular channel on the mounting base to form a constant magnetic field orthogonal to the uniform electric field when the coil assemblies are energized. A shell is provided on the outer side of the mounting base.

2. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 1, characterized in that: The mounting seat comprises two sets of seat bodies, the cross section of the seat bodies is U-shaped, the opening ends of the two sets of seat bodies are butted together to form the rectangular channel inside, and the electrode plates are arranged on the outer sides of the two sets of seat bodies and are respectively fixedly connected to the two sets of seat bodies; The shell comprises two groups of shells, and the open ends of the two groups of shells are butt-connected.

3. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 2, characterized in that: A slot is provided at the open end of the seat body, an insulating plate is provided in the slot, and the insulating plates are respectively inserted into the slots of the two seat bodies, and the electrode plate is connected to the seat body by bolts.

4. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 2, characterized in that: The outer bottom surface of the seat body is provided with a plurality of coil positioning grooves, the coil assembly is arranged in the coil positioning grooves, the outer bottom surface of the seat body is provided with a positioning pressing plate for positioning the coil body, and the positioning pressing plate is connected with the seat body by bolts.

5. An electromagnetic driving device for a liquid cooling channel of a charging pile according to claim 1 or 4, characterized in that: The coil assembly is configured as a Helmholtz coil group, each of which includes two parallel distributed coil bodies; the radius of the coil bodies in the same group of Helmholtz coil groups is smaller than the distance between the coil bodies, so that the magnetic field strength in the rectangular channel gradually increases from the middle to the edge.

6. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 1, characterized in that: The strength of the uniform electric field is set to 0.12×10 -11 -0.20×10 -11 N / C, the constant magnetic field strength is configured to be 0.40×10 -12 -0.46×10 -12 T.

7. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 1, characterized in that: The electrode plate is connected to a first wire, which is provided with a first connector extending out of the shell; the coil assembly is connected to a second wire, which is provided with a second connector extending in and out of the shell.

8. The electromagnetic driving device for the liquid cooling channel of a charging pile according to claim 1, characterized in that: The shell is provided with a plurality of heat dissipation slots.

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