阅读说明：本技术 车用制动电阻的液冷系统 (Liquid cooling system of vehicle brake resistor ) 是由 胡腾 赵峰 周锐 黄永祥 潘学玉 于 2020-04-26 设计创作，主要内容包括：本发明采用的技术方案是：一种车用制动电阻的液冷系统,其特征在于包括电机、开关、电池、制动电阻；电机的输出端与开关的一端电连接,开关的另一端与电池或者制动电阻电连接；还包括冷却管道,冷却管道贯穿制动电阻,冷却管道内流通有冷却液；还包括冷却液循环系统,冷却液循环系统与冷却管道相连通,冷却管道的冷却液在冷却液循环系统内流通。本发明的目的就是针对现有技术的缺陷,提供一种车用制动电阻的液冷系统,节约能源的同时提高了整车的安全性。(The technical scheme adopted by the invention is as follows: a liquid cooling system of a vehicle brake resistor is characterized by comprising a motor, a switch, a battery and a brake resistor; the output end of the motor is electrically connected with one end of the switch, and the other end of the switch is electrically connected with the battery or the brake resistor; the brake resistor is characterized by also comprising a cooling pipeline, wherein the cooling pipeline penetrates through the brake resistor, and cooling liquid flows in the cooling pipeline; the cooling system is communicated with the cooling pipeline, and cooling liquid of the cooling pipeline circulates in the cooling system. The invention aims to provide a liquid cooling system of a vehicle brake resistor, aiming at the defects of the prior art, so that the safety of the whole vehicle is improved while the energy is saved.)

1. A liquid cooling system of a vehicle brake resistor is characterized by comprising a motor, a switch, a battery and a brake resistor; the output end of the motor is electrically connected with one end of the switch, and the other end of the switch is electrically connected with the battery or the brake resistor; the brake resistor is characterized by also comprising a cooling pipeline, wherein the cooling pipeline penetrates through the brake resistor, and cooling liquid flows in the cooling pipeline; the cooling system is communicated with the cooling pipeline, and cooling liquid of the cooling pipeline circulates in the cooling system.

2. The liquid cooling system of claim 1, wherein the cooling pipe comprises an input end and an output end, the input end and the output end of the cooling pipe are connected through a water channel, the brake motor is provided with a heat dissipating through hole axially distributed along the center, and the water channel penetrates through the heat dissipating through hole.

3. The liquid cooling system of the vehicular brake resistor as recited in claim 2, wherein the terminal of the brake resistor is electrically connected to the switch through a lead-in wire.

4. The liquid cooling system of claim 3, wherein said water passages are circumferentially disposed around the inner wall of said heat dissipating through hole.

5. The liquid cooling system of claim 3, wherein the water passage is formed along an axis of the heat dissipating through hole, and the water passage is in contact with an inner wall of the heat dissipating through hole.

6. A liquid cooling system for a vehicle brake resistor as claimed in claim 4 or 5, wherein the cooling liquid circulation system comprises a radiator, the input and output ends of the cooling pipe are respectively connected to the output and input ends of the radiator through pipes, a water pump is disposed on the pipe between the input end of the cooling pipe and the output end of the radiator, and an expansion tank is disposed on the pipe between the output end of the cooling pipe and the input end of the radiator.

7. The liquid cooling system of the vehicular brake resistor as recited in claim 1, further comprising an AC/DC module, wherein the output terminal of the motor is electrically connected to one end of the switch via the AC/DC module.

8. The liquid cooling system of the vehicular brake resistor as recited in claim 1, further comprising a DC/DC module, wherein the input terminal of the battery is electrically connected to the other terminal of the switch via the DC/DC module.

9. The liquid cooling system of the vehicular brake resistor as claimed in claim 1, wherein when the vehicle is braking for a long time or a long time on a long slope, the motor is electrically connected to the battery through the switch, the motor generates a large amount of electric energy, and a part of the electric energy is converted into direct current to be charged in the battery; when the battery is charged to a certain amount, the motor is switched to be electrically connected with the brake resistor through the switch.

10. The liquid cooling system for the vehicular brake resistor as recited in claim 6, wherein the pump pumps the coolant into/out of the cooling channel, and the coolant enters the cooling channel and exchanges heat with the brake resistor; and the cooling liquid flows out of the cooling pipeline and then radiates the returned cooling liquid through the radiator.

Technical Field

The invention relates to the technical field of new energy, in particular to a liquid cooling system of a vehicle brake resistor.

Background

When the new energy automobile decelerates or goes downhill, the brake pedal is stepped on for braking. And a part of braking force can be recovered by dragging the motor, and energy can be stored in the battery. In general, the energy storage device of a new energy vehicle has limited capacity, and the vehicle with large energy during braking cannot store energy sufficiently. If the energy storage equipment is fully charged, the system is easily damaged by continuous charging.

Disclosure of Invention

The invention aims to provide a liquid cooling system of a vehicle brake resistor, aiming at the defects of the prior art, so that the safety of the whole vehicle is improved while the energy is saved.

The technical scheme adopted by the invention is as follows: a liquid cooling system of a vehicle brake resistor is characterized by comprising a motor, a switch, a battery and a brake resistor; the output end of the motor is electrically connected with one end of the switch, and the other end of the switch is electrically connected with the battery or the brake resistor; the brake resistor is characterized by also comprising a cooling pipeline, wherein the cooling pipeline penetrates through the brake resistor, and cooling liquid flows in the cooling pipeline; the cooling system is communicated with the cooling pipeline, and cooling liquid of the cooling pipeline circulates in the cooling system.

The cooling pipeline is including input and output, and the input and the output of cooling pipeline pass through the water course and connect, braking electrodynamic's center department is provided with along its axial distribution's heat dissipation through-hole, the water course runs through the heat dissipation through-hole.

The terminal of the brake resistor is electrically connected with the switch through a lead-in wire.

The water channels are distributed in a mode of being attached to the inner wall of the radiating through hole in a surrounding mode.

The water channel is distributed along the axis of the heat dissipation through hole and is in contact with the inner wall of the heat dissipation through hole.

The cooling liquid circulation system comprises a radiator, the input end and the output end of the cooling pipeline are respectively communicated with the output end and the input end of the radiator through pipelines, a water pump is arranged on the pipeline between the input end of the cooling pipeline and the output end of the radiator, and expansion water tanks are arranged on the pipelines from the output end of the cooling pipeline and the input end of the radiator.

In the technical scheme, the motor further comprises an AC/DC module, and the output end of the motor is electrically connected with one end of the switch through the AC/DC module.

In the technical scheme, the battery protection device further comprises a DC/DC module, and the input end of the battery is electrically connected with the other end of the switch through the DC/DC module.

In the technical scheme, when the vehicle runs down a long slope or is braked for a long time, the motor is electrically connected with the battery through the switch, the motor generates a large amount of electric energy, and one part of the electric energy is converted into direct current to be charged into the battery; when the battery is charged to a certain amount, the motor is switched to be electrically connected with the brake resistor through the switch.

In the technical scheme, the water pump pumps cooling liquid into/out of the cooling pipeline, and the cooling liquid enters the cooling pipeline and then exchanges heat with the brake resistor; and the cooling liquid flows out of the cooling pipeline and then radiates the returned cooling liquid through the radiator.

When the vehicle runs down a long slope or is braked, the braking energy is recovered by generating power through the motor to charge the battery; when the battery is fully charged, the switch is switched on the brake resistor, and the electric energy generated by recovering the brake energy is consumed by the brake resistor, so that the problem of brake energy dissipation when the brake energy is too much to be stored is solved; meanwhile, the braking force of the braking system is reduced, so that the service lives of the braking system and the tire are prolonged. The invention replaces the function of a retarder and is beneficial to reducing the weight of the commercial vehicle. The liquid cooling system promotes the brake resistor to rapidly dissipate heat. The liquid cooling system adopts the internal through water pipe to dissipate heat for the brake resistor, and the heat dissipation effect is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic view of the present invention;

101-motor, 102-AC/DC module, 103-switch, 104-DC/DC module, 105-battery, 106-battery, 107-cooling pipeline, 108-water pump, 109-radiator, 110-expansion water tank, 111-heat dissipation through hole, 201-input end, 202-output end and 203-lead.

Detailed Description

The invention will be further described in detail with reference to the following drawings and specific examples, which are not intended to limit the invention, but are for clear understanding.

As shown in fig. 1, the present invention provides a liquid cooling system for a vehicle brake resistor, which is characterized in that the system comprises a motor 101, a switch 103, a battery, and a brake resistor 106; the output end of the motor 101 is electrically connected with one end of a switch 103, and the other end of the switch 103 is electrically connected with a battery or a brake resistor 106; the brake resistor further comprises a cooling pipeline 107, the cooling pipeline 107 is arranged in the heat dissipation through hole 11 in the brake resistor 106, and cooling liquid flows through the cooling pipeline 107; the cooling system further comprises a cooling liquid circulating system, the cooling liquid circulating system is communicated with the cooling pipeline 107, and cooling liquid of the cooling pipeline 107 circulates in the cooling liquid circulating system. When the vehicle runs down a long slope or is braked for a long time, the motor 101 is electrically connected with the battery through the switch 103, the motor 101 generates a large amount of electric energy, and one part of the electric energy is converted into direct current to be charged into the battery; when the battery is charged to a certain amount, the external control device drives the switch 103 to realize switching according to the state information of the battery. The detection motor 101 is switched to be electrically connected to the brake resistor 106 by the switch 103. The brake resistor 106 is cooled in a surrounding manner through a water channel/pipe, wherein the cooling fluid surrounds the brake resistor 106 through a pipeline or a water channel, and the heat of the brake resistor is taken away through water circulation. The surrounding mode of the water channel or the pipeline is various.

The cooling pipeline 107 comprises an input end and an output end, the input end and the output end are arranged on the same side of the brake resistor 106, the layout is reasonably optimized, and the cooling pipeline 107 is conveniently connected with a cooling liquid circulating system.

The input end and the output end of the cooling pipe 107 are connected by a water channel which surrounds the brake resistor 106, and the water channel may be distributed circumferentially along the inside of the heat dissipating through-hole 11 to cover all positions of the inner wall of the heat dissipating through-hole. The water channel extends from one end of the heat dissipation through-hole to another section of the heat dissipation through-hole 111. The water channel is used for realizing heat dissipation of the refrigeration resistor.

The water channels may also be distributed along the axis of the heat dissipating through-hole 111 in a straight line distribution. The preferred water channels may also be distributed in the heat dissipating through-holes 111 in a side-by-side or side-by-side manner, occupying available space within the heat dissipating through-holes 111.

According to the invention, the cooling water pipe is additionally arranged in the area where the heat dissipation through hole 111 is least easy to dissipate heat, namely the center, through the arrangement of the heat dissipation through hole 111, so that the refrigeration effect is effectively improved.

The terminal of the braking resistor 106 is electrically connected with the switch 103 through the lead-in lead 203, so that the overall stability of circuit connection is ensured.

The cooling liquid circulation system comprises a radiator 109, the input end and the output end of the cooling pipeline 107 are respectively communicated with the input end and the output end of the radiator 109, a water pump 108 is arranged on the inlet pipeline, and an expansion water tank 110 is arranged on the outlet pipeline. In the above technical solution, the water pump 108 pumps the cooling liquid into/out of the cooling pipeline, and the cooling liquid enters the cooling pipeline 107 and then exchanges heat with the brake resistor 106; the coolant flows out of the cooling duct 107 and then dissipates heat of the returned coolant through the radiator 109. The expansion tank 110 provides a constant pressure and water replenishing function for the system.

In the above technical solution, the motor further includes an AC/DC module 102, and an output end of the motor 101 is electrically connected to one end of the switch 103 through the AC/DC module 102. The AC power generated by the motor 101 is converted to DC power by the AC/DC module 102.

In the above technical solution, the battery further includes a DC/DC module 104, and the input end of the battery is electrically connected to the other end of the switch 103 through the DC/DC module 104. The DC/DC module 104 transforms the DC voltage at the output of the AC/DC module 102 and provides the transformed DC voltage to the battery for charging.

When the vehicle runs down a long slope or is braked, the motor 101 generates electricity to recover braking energy and charge a battery; when the battery is fully charged, the switch 103 is connected with the braking resistor 106, and the electric energy generated by recovering the braking energy is consumed by the braking resistor 106, so that the problem of the dissipation of the braking energy when the braking energy is too much and cannot be stored is solved; meanwhile, the braking force of the braking system is reduced, so that the service lives of the braking system and the tire are prolonged. The invention replaces the function of a retarder and is beneficial to reducing the weight of the commercial vehicle. The fluid cooling system facilitates rapid heat dissipation from the brake resistor 106. The liquid cooling system of the invention adopts the surrounding water pipe to radiate heat for the brake resistor 106, and the radiating effect is good.

Details not described in this specification are within the skill of the art that are well known to those skilled in the art.