Motor controller water-cooling heat dissipation base and electric motorcycle

Abstract

The utility model discloses a motor controller water-cooling heat dissipation base and an electric motorcycle. The heat dissipation base comprises a heat dissipation plate and a cover plate. A water channel is arranged on the heat dissipation plate, the cover plate is in close contact with the heat dissipation plate, the heat dissipation plate is provided with a preformed hole boss, and the preformed hole boss is used for arranging an object to be subjected to heat dissipation. The device effectively solves the problem of heat dissipation of the motor controller of the electric motorcycle, adopts a water cooling scheme for heat dissipation, can effectively reduce the temperature of the controller, enables the motor to operate at higher power, and provides higher power density. The water-cooled motor can adapt to a high environment temperature, especially can still provide stable heat dissipation performance in a high-temperature environment, and is suitable for some harsh industrial and high-power application scenes; compared with an air cooling system, the water cooling system can provide a better heat dissipation effect, the working temperature of the motor can be effectively reduced, the influence of thermal stress on motor parts is reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a water-cooling heat dissipation base of a motor controller and an electric motorcycle. Background Art

[0002] Most of the electric motorcycle motor controllers on the market currently use natural cooling and air-cooled radiators. The problem with natural cooling is that the heat dissipation speed is not fast enough. Therefore, in order to improve its performance, the material is often replaced with aluminum plate and the thickness of the aluminum plate is increased. This not only increases the cost, but also increases the difficulty of assembly. The volume inside the car body is often small. There are two main types of air-cooled radiators. The first is electric fan heat dissipation. The difficulty lies in the high noise. The heat dissipation effect is often affected by the environment and the heat dissipation efficiency is very low. The second is to increase the heat dissipation area by blowing natural wind into the heat dissipation base slot. Natural wind can effectively cool down, but most of the electric controls are currently placed inside the electric motorcycle, and the bottom is exposed, which is at risk of being stolen. Air cooling is only suitable for small equipment and low-load scenarios. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a water-cooled heat dissipation base for a motor controller, which utilizes water channels arranged on a heat dissipation plate to achieve rapid heat dissipation of the motor controller, thereby improving the heat dissipation effect.

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

[0005] The utility model provides a water-cooled heat dissipation base for a motor controller, comprising a heat dissipation plate and a cover plate; the heat dissipation plate is provided with a water channel, the cover plate is in close contact with the heat dissipation plate, the heat dissipation plate is provided with a reserved hole boss, and the reserved hole boss is used to set an object to be cooled.

[0006] Furthermore, a water inlet hole and a water outlet hole are provided on the heat dissipation base; the water inlet hole is used to transport water to the water channel in the heat dissipation base; and the water outlet hole is used to transport water in the heat dissipation base to the outside.

[0007] Furthermore, a partition plate is provided between the water inlet and the water outlet to guide the water flowing in from the water inlet to flow along a preset path and then flow out from the water outlet, thereby forming a circulating flow state.

[0008] Further, the water channel is a groove arranged on the heat dissipation plate, and a first guide plate and a second guide plate are arranged in the groove. The shape of the first guide plate is C-shaped, and the first guide plate matches the side wall of the groove, so that a fluid channel is formed between the first guide plate and the side wall of the groove. A second guide plate is arranged on one side of the C-shaped notch of the first guide plate, and one end of the second guide plate contacts the inner wall of the groove, and the other end extends from the notch into the area enclosed by the first guide plate, so that a fluid channel is formed between the first guide plate and the second guide plate.

[0009] Furthermore, the first guide plate is provided with threaded holes, and the threaded holes are used for installing the cover plate.

[0010] Furthermore, a sealing gasket is provided between the heat dissipation base and the cover plate.

[0011] The electric scooter provided by the utility model is provided with the water-cooling heat dissipation base of the motor controller.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a water-cooled heat dissipation base for a motor controller, including a heat dissipation plate and a cover plate; the heat dissipation plate is provided with a water channel, the cover plate is in close contact with the heat dissipation plate, and the heat dissipation plate is provided with a reserved hole boss, and the reserved hole boss is used to set the object to be cooled. This device effectively solves the heat dissipation problem of the electric motorcycle motor controller, adopts a water cooling solution to dissipate heat, can effectively reduce the temperature of the controller, enable the motor to operate at a higher power, and provide a higher power density. At the same time, it also has the following advantages:

[0014] Strong environmental adaptability: Water-cooled motors can adapt to higher ambient temperatures, especially in high-temperature environments, and can still provide stable heat dissipation performance, making them suitable for some harsh industrial and high-power application scenarios.

[0015] Good heat dissipation effect: Compared with the air cooling system, the water cooling system can provide better heat dissipation effect, which can effectively reduce the operating temperature of the motor, reduce the impact of thermal stress on motor components, and extend the life of the motor.

[0016] High-performance electric vehicles: In high-performance electric vehicles or electric motorcycles, the power density requirement of the motor controller is higher, and water-cooled motor controllers can provide better heat dissipation, allowing the controller to maintain stable performance at high power output.

[0017] Electric motorcycle powertrain: Water-cooled motors are widely used in the powertrain of electric motorcycles. The water cooling system can provide effective cooling for the motor and electronic control unit (ECU), ensuring the performance and life of the system.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0020] Figure 1 This is a three-dimensional image of the heat dissipation base.

[0021] Figure 2 This is a three-dimensional diagram of the heat sink.

[0022] Figure 3 This is the plan view of the cover.

[0023] In the figure, 1-heat sink, 2-heat sink, 3-cover, 4-water channel, 5-water inlet, 6-water outlet, 7-partition plate, 8-sealing gasket, 9-screw hole; 11-threaded hole; 41-first drain plate, 42-second drain plate. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] like Figures 1 to 3 As shown, the motor controller water-cooling heat dissipation base 1 provided in this embodiment includes a heat dissipation plate 2 and a cover plate 3; a water channel 4 is provided on the heat dissipation plate 2, the cover plate 3 is in close contact with the heat dissipation plate 2, and the heat dissipation plate 2 is provided with a reserved hole boss, and the reserved hole boss is used to set an object to be cooled, and the object to be cooled is a motor controller PCB board;

[0026] The heat dissipation base 1 is provided with a water inlet hole 5 and a water outlet hole 6; the water inlet hole 5 is used to transport water to the water channel 4 in the heat dissipation base 1; the water outlet hole 6 is used to transport water in the heat dissipation base 1 to the outside;

[0027] A partition plate 7 is provided between the water inlet hole 5 and the water outlet hole 6, for guiding the water flowing in from the water inlet hole 5 to flow along a preset path and then flow out from the water outlet hole 6, thereby forming a circulating flow state;

[0028] The water channel 4 is a groove arranged on the heat sink 2, and a first guide plate 41 and a second guide plate 42 are arranged in the groove. The first guide plate 41 is in a C-shape, and the first guide plate 41 matches the side wall of the groove, so that a fluid channel is formed between the first guide plate 41 and the side wall of the groove. A second guide plate 42 is arranged on one side of the C-shaped notch of the first guide plate 41, and one end of the second guide plate 42 contacts the inner wall of the groove, and the other end extends from the notch into the area surrounded by the first guide plate 41, so that a fluid channel is formed between the first guide plate 41 and the second guide plate 42;

[0029] The first guide plate 41 is provided with a threaded hole 11, and the threaded hole 11 is used to install the cover plate 3;

[0030] A sealing gasket 8 is provided between the heat sink 2 and the cover plate 3, and the sealing gasket 8 is used to ensure that the heat sink base 1 has good sealing performance after installation;

[0031] In this embodiment, the water in the water channel 4 circulates, the actual internal base area is larger, and the temperature changes faster, which is beneficial to the heat dissipation of the heat dissipation base 1 of the electric motorcycle motor controller;

[0032] In this embodiment, the water channel 4 of the heat dissipation base 1 has a large internal opening area, which can increase the capacity of the water channel 4, thereby enhancing the heat dissipation capacity;

[0033] In this embodiment, the water channel 4 on the heat sink 2 is an open water channel 4, and the mounting hole on the heat sink 2 is a threaded hole 11ZG1 / 4 to ensure the stability and continuity of the connection;

[0034] In this embodiment, the outer periphery of the water channel 4 is wrapped by a sealing gasket 8, and the thickness of the sealing gasket 8 is 0.2 mm higher than the base, thereby ensuring the airtightness of the heat dissipation base 1; the upper part of the heat dissipation plate 2 is in close contact with the cover plate 3 to ensure that the liquid does not flow out;

[0035] In this embodiment, screw holes 9 are provided at the four corners of the heat sink 2, and two screws are added in the middle of the heat sink 2 to ensure the smoothness of water in the channel of the entire heat sink 2;

[0036] The heat dissipation base 1 in this embodiment can ensure that the water flow circulates inside and has a large internal water flow capacity and a large heat dissipation capacity; the overall sealing is good and does not affect the normal use of the heat dissipation base 1; the effectiveness and longevity of the product;

[0037] In this embodiment, the heat sink 2 is a rectangular plate with a square appearance, which is suitable for the assembly of most electric motorcycles and can effectively solve the internal space problem; the internal water channel 4 is simple in design, and the internal opening is large, which can effectively save costs. It can ensure the overall reasonable flowability in the water channel 4. After the water volume is filled as a whole, the water can be transported unimpeded inside; the effectiveness of heat dissipation: the heat dissipation base 1 is connected to three devices: a water pump, a water flow radiator, and a water tank. From the heat dissipation result, compared with natural heat dissipation, the temperature drops from 100 degrees to about 65 degrees and can effectively maintain stability for a long time, thereby effectively protecting and extending the life of the motor controller.

[0038] The water channel 4 of the heat dissipation base 1 in this embodiment is calculated according to the following formula:

[0039] Calculation of the amount of heat that water can dissipate:

[0040] W=C(T1-T2)V 流量 ρ

[0041] V 流量 =Sv 水的流速 W: heat dissipation; C: specific heat capacity; S: cross-sectional area; ρ: density; T1: final temperature; T2: initial temperature; C: 4.2x10 3 J / (kg·K); ρ: 1x10 3 kg / (kg·K)

[0042] The final calculated result is: 8.82×10 4 ×ΔT×v 水的流速

[0043] At the same time, vacuum exhaust can be used to achieve a water-filled state, ensuring high heat dissipation without being affected by water flow velocity and gravity.

[0044] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A water-cooling heat dissipation base for a motor controller, characterized in that: It includes a heat sink and a cover plate; the heat sink is provided with a water channel, the cover plate is in close contact with the heat sink, the heat sink is provided with a reserved hole boss, and the reserved hole boss is used to set the object to be cooled.

2. The water-cooling heat dissipation base of the motor controller according to claim 1, characterized in that: The heat dissipation base is provided with a water inlet hole and a water outlet hole; the water inlet hole is used to transport water to the water channel in the heat dissipation base; the water outlet hole is used to transport water in the heat dissipation base to the outside.

3. The water-cooling heat dissipation base of the motor controller according to claim 2, characterized in that: A partition plate is arranged between the water inlet and the water outlet to guide the water flowing in from the water inlet to flow along a preset path and then flow out from the water outlet, thereby forming a circulating flow state.

4. The water-cooling heat dissipation base of the motor controller according to claim 1, characterized in that: The water channel is a groove arranged on the heat dissipation plate, and a first guide plate and a second guide plate are arranged in the groove. The shape of the first guide plate is C-shaped, and the first guide plate matches the side wall of the groove, so that a fluid channel is formed between the first guide plate and the side wall of the groove. A second guide plate is arranged on one side of the C-shaped notch of the first guide plate, and one end of the second guide plate contacts the inner wall of the groove, and the other end extends from the notch into the area surrounded by the first guide plate, so that a fluid channel is formed between the first guide plate and the second guide plate.

5. The water-cooling heat dissipation base of the motor controller according to claim 4, characterized in that: The first guide plate is provided with a threaded hole, and the threaded hole is used for installing the cover plate.

6. The water-cooling heat dissipation base of the motor controller according to claim 1, characterized in that: A sealing gasket is arranged between the heat dissipation base and the cover plate.

7. Electric motorcycle, characterized by: The electric motorcycle is provided with a water-cooling heat dissipation base for the motor controller according to any one of claims 1 to 6.

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