Electric fitting heat dissipation system and handlebar control electric vehicle

Abstract

The utility model discloses an electric fitting heat dissipation system and a handlebar control electric vehicle. Comprising a heat dissipation air channel, and an air inlet and an air outlet are formed in the two ends of the heat dissipation air channel respectively; and the air pump unit is connected with the air outlet through an air pipe, so that after the air pump unit is started, external airflow is pumped into the heat dissipation air channel through the air inlet by utilizing negative pressure, and is pumped out from the air outlet of the heat dissipation air channel. The surfaces of the battery cells in the battery pack serve as heat dissipation channels, the heat dissipation area is greatly increased compared with liquid cooling, and the heat dissipation speed is higher. Cooling liquid is not needed, and the problems of liquid leakage and maintenance do not need to be considered. And compared with liquid cooling insulation, the structure is simple and reliable, the system risk is reduced, and the weight is lighter.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation system technical field especially a kind of electric equipment heat dissipation system and handle control electric vehicle. BACKGROUND

[0002] In handle control electric vehicle (electric motor, electric bicycle), electric equipment part is main vehicle body heat source, temperature control to heat source can effectively promote the overall performance of set vehicle, promote driving mileage, prolong battery pack life and guarantee the life health of passenger.

[0003] At present, the heat dissipation of vehicle electric equipment part is mainly to heat dissipation of motor, battery pack, controller and charger. The heat dissipation mode is divided into active heat dissipation and passive heat dissipation:

[0004] Passive heat dissipation: it means that heat source such as battery pack and motor is transferred to shell through insulation layer heat transfer and heat radiation, and the shell is heat dissipated through heat dissipation fin and air flow;

[0005] Active heat dissipation: it means that the heat dissipation fin of vehicle is replaced by natural wind cooling under the motion state of vehicle, and the heat is transferred to radiator by cooling liquid, and the heat is dissipated by large-area heat dissipation fin and heat dissipation fan on radiator.

[0006] In the two methods, active heat dissipation has high overall volume requirement, and there is risk of cooling liquid leakage, and maintenance is complex. Passive heat dissipation has the problems of insufficient heat dissipation effect and not timely controlling temperature to reasonable range. INVENTION CONTENTS

[0007] The utility model provides a kind of electric equipment heat dissipation system and handle control electric vehicle to solve the heat dissipation system problem existing in current technology and provide a portable heat dissipation and heating comprehensive scheme on whole vehicle.

[0008] To solve the above technical problems, the utility model solves the problems by the following technical solutions:

[0009] A kind of electric equipment heat dissipation system, comprising

[0010] Electric equipment heat source, comprising heat dissipation air duct, the heat dissipation air duct two ends are air inlet and air outlet respectively;And

[0011] Pump unit is connected with the air outlet by air pipe, so that external air flow is sucked into heat dissipation air duct through air inlet by negative pressure after it is started, and is extracted from the air outlet of heat dissipation air duct.

[0012] In the above technical solution, preferably, the electric equipment heat source is one or more of motor, battery pack, controller and charger.

[0013] In the technical solution, preferably, the electric equipment heat source is one or more of a battery pack, a controller and a charger; the air pump unit is connected to the motor and the heat source through an air duct, so that the air flow discharged by the heat source passes through the heat dissipation air duct and / or the heat dissipation fins of the motor; the air inlet end of the air pump unit in the forward rotation state is connected to the battery through an air duct, and the air outlet end is connected to the motor through an air duct, so that the air flow discharged by the battery passes through the heat dissipation air duct and / or the heat dissipation fins of the motor, and the air flow can be used to dissipate heat from the battery and the motor through air flow gradient.

[0014] In the technical solution, preferably, a fan regulating unit is electrically connected to the air pump unit, and is used to control the forward and reverse rotation of the air pump unit, so that the heat dissipated by the motor can be transmitted to the battery pack to quickly increase the temperature of the battery in a low-temperature environment.

[0015] In the technical solution, preferably, a fan regulating unit is electrically connected to the air pump unit, and is used to control the forward and reverse rotation of the air pump unit, so that the heat dissipated by the motor can be transmitted to the battery pack to quickly increase the temperature of the battery in a low-temperature environment.

[0016] In the technical solution, preferably, a temperature detection unit is electrically connected to the electric equipment heat source, and is used to control the start and stop and / or speed adjustment and forward / reverse rotation of the air pump unit according to the real-time temperature of the electric equipment heat source.

[0017] In the technical solution, preferably, the heat dissipation air duct is formed on the outer wall of the electric equipment heat source.

[0018] In the technical solution, preferably, the heat dissipation fins are arranged on the wall of the heat dissipation air duct close to the heat generating part of the electric equipment heat source.

[0019] In the technical solution, preferably, an air filter unit is arranged on the fluid flow path of the air inlet end and / or the fluid flow path of the air outlet end of the air pump unit.

[0020] The hand-held control electric vehicle comprises the electric equipment heat dissipation system.

[0021] The electric equipment heat dissipation system has the advantages that:

[0022] The battery pack is used as a heat dissipation channel, and the heat dissipation area is greatly increased compared with liquid cooling, and the heat dissipation speed is faster. The cooling liquid is not needed, and the leakage and maintenance problems are not considered. The insulation is better, the structure is simple and reliable, the system risk is reduced, and the weight is lighter.

[0023] The air source negative pressure air extraction is used to generate a low-pressure area in the battery pack, which is helpful to generate low-temperature air flow for heat dissipation. The air flow after heat exchange of the battery pack is used for heat exchange of the motor, and the temperature is increased in steps to meet the heat dissipation of the two types of electric appliances.

[0024] The heat generated by the working state of the motor is used to heat the battery pack by reversing, so as to achieve the purpose of rapid heating.

[0025] The application is convenient to install, realizes the multipurpose function of multiple devices under the condition of reducing the weight of the vehicle, achieves multiple heat conduction modes, and can improve the running efficiency of the vehicle and reduce the maintenance amount of the electric equipment system. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic view of the present application.

[0027] Figure 2 It is another schematic view of the present application.

[0028] Figure 3 It is a schematic view of the battery pack of the present application.

[0029] Figure 4 It is a schematic view of the heat dissipation air duct of the present application. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0031] Referring to Figures 1-4 , a kind of electric equipment heat dissipation system, it is installed on vehicle, such as handle control electric vehicle, it includes electric equipment heat source and air pump unit 1, wherein, electric equipment heat source is motor 11, battery pack 12, controller, charger one or more, simultaneously, including heat dissipation air duct 3 on electric equipment heat source 1, heat dissipation air duct 3 two ends are air inlet 31 and air outlet 32 respectively.

[0032] Heat dissipation air duct 3 is formed on the outer wall of electric equipment heat source 1, as one of the embodiments, a raised part is formed on the outer wall of electric equipment heat source 1, and an inner cavity with two ends opening is formed on the raised part to form a heat dissipation air duct, as one of the choices, heat dissipation air duct 3 is communicated with the internal cavity of battery pack, and the internal cavity refers to the cavity for installing battery cell.

[0033] In the embodiment, heat dissipation scales 33 are arranged in heat dissipation air duct 3, as shown in Figure 4 , as one of the embodiments, heat dissipation scales 33 are arranged on the wall of heat dissipation air duct 3 close to the heat generating part of electric equipment heat source. Heat dissipation air duct 3 is used for conducting flowing air flow, and the heat on heat dissipation scales 33 is conducted by flowing air flow; heat dissipation scales 33 are used for conducting and diffusing the heat of each electric equipment part, which is beneficial to heat conduction; air pipe is used for connecting each heat dissipation air duct and adjacent components.

[0034] For the air pump unit 1, for providing the flow of air flow of heat dissipation system, provide negative pressure environment, which is connected with the air outlet 32 through the air pipe 4, after the air pump unit 1 starts, the outside air flow is drawn into the heat dissipation air duct 3 by the negative pressure through the air inlet 31, and is drawn out from the air outlet 32 of the heat dissipation air duct 3, so as to realize the heat dissipation of the electric equipment heat source.

[0035] As one of the embodiments, the air pump unit 1 can be selected as a dedicated high-speed hair dryer BLDC fan, which has the characteristics of large air volume, large air pressure and large air speed, and is suitable for the heat dissipation system to quickly take away heat.

[0036] The impurities of the outside air are prevented from entering the fluid flow path of the heat dissipation system, and in the embodiment, the air filter unit 5 is arranged on the fluid flow path at the air inlet 31 end and / or the fluid flow path at the exhaust end of the air pump unit 1.

[0037] As shown in Figure 1 , when the heat dissipation system works in the heat dissipation mode, the outside air enters the heat dissipation system after the impurities are filtered out by the air filter unit 5, the low-temperature air flow exchanges heat with the battery pack through the heat dissipation air duct of the battery pack part, and the high-temperature air flow after the heat exchange of the battery pack is drawn out by the fan negative pressure. The heat dissipation system draws the outside air flow into the heat dissipation system by negative pressure, and the outside air pressure is lower than the air pressure in the heat dissipation system, which is beneficial to cooling and heat conduction.

[0038] In order to facilitate the control and real-time adjustment of the air pump unit 1, the fan adjusting unit (not shown in the figure) is further included in the embodiment, which is electrically connected with the air pump unit 1, and is used to control the start-stop and / or speed adjustment and forward-reverse rotation of the air pump unit 1, such as controlling the fan speed according to the mode and temperature of heat conduction. Further, the temperature detection unit (not shown in the figure) electrically connected with the fan adjusting unit is arranged on the electric equipment heat source, so as to control the start-stop and / or speed adjustment and forward-reverse rotation of the air pump unit 1 according to the real-time temperature of the electric equipment heat source.

[0039] The temperature detection unit is installed on each electric equipment, which is used to detect the real-time temperature of each part of the electric equipment, so as to collect and control the temperature of the heat dissipation system. After collecting the temperature state of each component according to the preset temperature of the system, the fan adjusting unit controls the fan to exchange heat, so that the temperature of each component reaches the preset temperature.

[0040] In the case of needing to conduct heat transfer to the motor 11, the heat dissipation system for dissipating heat of the motor is increased, as shown in Figure 2 , the electric equipment heat source is the battery pack 11, and the exhaust end of the air pump unit is connected with the motor 12 through the air pipe, so that the exhaust air flow passes through the heat dissipation air duct and / or heat dissipation fin of the motor 12. Figure 1The electric heating source is a battery pack, and the heat dissipation system does not have a motor heat dissipation system. At the same time, the air pipe between the air outlet and the air pump unit and between other adjacent components is omitted. Figure 1 、 Figure 2

[0041] Specifically, the system does not increase the motor heat dissipation system. The motor part of the air pump unit 1 and the air filter unit 5 air duct is increased. The battery heat exchange airflow is connected to the motor part of the heat dissipation air duct through the air pump unit 1, the heat dissipation fin, and the high-temperature airflow that does not reach the motor temperature. The heat exchange of the motor heat dissipation fin directly contacted by the high-temperature airflow makes the motor heat exchange exhaust. It meets the low-pressure airflow for battery pack heat dissipation, and also meets the motor heat dissipation condition. The air duct temperature is at a safe temperature, and will not affect the control panel at the fan end.

[0042] When the ambient temperature is 30℃, the cell operating temperature is 45℃, and the motor operating temperature is 120℃, the air pump unit extracts the hot air (45℃) in the battery pack, uses the negative pressure of the battery pack to suck the cold air (30℃) filtered by the air filter into the battery pack, and the hot air (45℃) extracted by the air pump unit is introduced into the motor. Through the air outlet of the motor, the internal temperature of the motor is reduced.

[0043] The entire electric equipment heat dissipation system exchanges heat through air. Each electric equipment that exchanges heat has its own heat dissipation air duct and heat dissipation fin, and the heat is transferred to the heat dissipation fin through the heat dissipation channel in each electric equipment for heat exchange.

[0044] The air pump unit 1 provides heat exchange airflow. The air pump unit connects the air filter unit and the heat dissipation air duct of each electric equipment through the air pipe.

[0045] When the external temperature is low and the vehicle is in a low-temperature state, a mode of heating the battery pack with motor heat is added. At this time, the air pump unit can be reversed to transmit the high-temperature airflow generated by the motor part to the battery pack end (controlled by the fan adjustment unit to adjust the forward and reverse rotation of the air pump unit), so that the battery pack can quickly raise the overall temperature below the normal use temperature to reach the discharge state that can adapt to normal riding of the vehicle. After reaching the normal temperature, the heat dissipation or heat conduction mode is switched according to the actual situation.

[0046] The heat conduction scheme can be installed on a handle-controlled electric vehicle to participate in the temperature regulation of the overall electric equipment part in driving and non-driving states.

[0047] ​The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical cooling system, characterized in that: include The Denso heat source includes a heat dissipation duct, with an air inlet and an air outlet at each end of the heat dissipation duct. as well as An air pump unit is connected to the air outlet via a duct. After it is started, it uses negative pressure to draw external airflow into the heat dissipation duct through the air inlet and then draws it out from the air outlet of the heat dissipation duct.

2. The Denso heat dissipation system according to claim 1, characterized in that: The electric heating source is one or more of the following: a motor, a battery pack, a controller, and a charger.

3. The Denso heat dissipation system according to claim 1, characterized in that: The electric heating source is one or more of a battery pack, controller, and charger. The air pump unit is connected to the motor and the heating source through a duct so that the airflow discharged from the heating source passes through the motor's heat dissipation duct and / or heat dissipation fins.

4. The Denso heat dissipation system according to claim 3, characterized in that: It also includes a fan control unit, which is electrically connected to the air pump unit, to control the forward and reverse rotation of the air pump unit in order to transfer the heat dissipated by the motor to the battery pack.

5. An Electric Appliance heat dissipation system according to any one of claims 1-3, characterized in that: It also includes a fan regulating unit, which is electrically connected to the air pump unit, and is used to control the start and stop of the air pump unit and / or speed adjustment and forward / reverse rotation.

6. The Denso heat dissipation system according to claim 5, characterized in that: The electric heating source is equipped with a temperature detection unit that is electrically connected to the fan regulating unit, so as to control the start and stop of the air pump unit and / or speed adjustment and forward / reverse rotation according to the real-time temperature of the electric heating source.

7. An Electric Appliance cooling system according to any one of claims 1-3, characterized in that: The heat dissipation duct is formed on the outer wall of the electric heating source.

8. An electrical cooling system according to any one of claims 1-3, characterized in that: Heat dissipation fins are arranged on the wall of the heat dissipation duct near the heat-generating part of the Denso heat source.

9. The Denso heat dissipation system according to claim 8, characterized in that: An air filter unit is provided on the fluid flow path at the air inlet end and / or on the fluid flow path at the exhaust end of the air pump unit.

10. A handlebar-operated electric vehicle, characterized in that: It includes the Denso heat dissipation system as described in any one of claims 1-9.

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