阅读说明：本技术 可控温的方向盘、方向盘的温度控制方法以及车辆 (Temperature-controllable steering wheel, temperature control method of steering wheel and vehicle ) 是由 阙送威 张坡 孙波 陈乐德 于 2020-04-16 设计创作，主要内容包括：本发明提供了一种可控温的方向盘、方向盘的温度控制方法以及车辆,可控温的方向盘包括方向盘骨架、检测装置、用于制取高温液体的第一产生装置、用于制取低温液体的第二产生装置、管路总成；方向盘骨架包括主体、与主体连接的转向轴,其中主体的内部形成有换热流道,在转向轴的内部设置有用于液体流入换热流道内的液体输入流道、用于液体流出换热流道的液体输出流道；管路总成包括第一管路、第二管路,第一管路与液体输入流道相连通,第二管路与液体输出流道之间相连通；第一产生装置作用于第一管路；第二产生装置作用于第一管路。本发明采用液体热交换方式进行方向盘的制冷与制热,具有结构简洁、方向盘整体温度均匀、能源利用率高的优点。(The invention provides a temperature-controllable steering wheel, a temperature control method of the steering wheel and a vehicle, wherein the temperature-controllable steering wheel comprises a steering wheel framework, a detection device, a first generation device for preparing high-temperature liquid, a second generation device for preparing low-temperature liquid and a pipeline assembly; the steering wheel framework comprises a main body and a steering shaft connected with the main body, wherein a heat exchange flow channel is formed inside the main body, and a liquid input flow channel and a liquid output flow channel are arranged inside the steering shaft, wherein the liquid input flow channel is used for liquid to flow into the heat exchange flow channel, and the liquid output flow channel is used for liquid to flow out of the heat exchange flow channel; the pipeline assembly comprises a first pipeline and a second pipeline, the first pipeline is communicated with the liquid input flow channel, and the second pipeline is communicated with the liquid output flow channel; the first generating device acts on the first pipeline; the second generating means acts on the first line. The invention adopts a liquid heat exchange mode to refrigerate and heat the steering wheel, and has the advantages of simple structure, uniform overall temperature of the steering wheel and high energy utilization rate.)

1. A temperature-controllable steering wheel, comprising:

a steering wheel armature;

the detection device is used for acquiring the temperature of the steering wheel framework;

a first generating device for preparing high-temperature liquid;

a second generating means for producing a cryogenic liquid; and

a pipeline assembly;

the steering wheel framework comprises a main body and a steering shaft connected with the main body, wherein a heat exchange flow channel is formed in the main body, the steering shaft is of a hollow structure, and a liquid input flow channel for liquid to flow into the heat exchange flow channel and a liquid output flow channel for liquid to flow out of the heat exchange flow channel are arranged in the steering shaft;

the pipeline assembly comprises a first pipeline and a second pipeline, the first pipeline is communicated with the liquid input flow channel, and the second pipeline is communicated with the liquid output flow channel;

the first generating device acts on the first pipeline;

the second generating means acts on the first line.

2. The temperature-controllable steering wheel according to claim 1, wherein the steering shaft comprises a shaft body, and an inner tube fixedly disposed in the shaft body, the inner tube having a hollow structure, the liquid input channel being formed in the inner tube, and the liquid output channel being formed between the inner tube and an inner wall of the shaft body.

3. The temperature-controlled steering wheel according to claim 2, wherein the first pipe is connected to the liquid input flow channel in a rotation fit manner, and the second pipe is connected to the liquid output flow channel by a fixed rotary joint, wherein the rotary joint is rotatably disposed outside the inner pipe and connected to the shaft body in a rotation fit manner.

4. The temperature-controllable steering wheel according to claim 3, wherein the cavity in the rotary joint has a first section with the same flow direction as the liquid output channel and a second section with an offset outlet, the liquid output channel is connected to the inlet of the first section via a rotary bearing, and the second pipeline is fixedly connected to the outlet of the second section.

5. The temperature-controllable steering wheel according to claim 1, wherein the heat exchange flow channel is a unidirectional heat exchange flow channel having a fixed liquid flow direction.

6. The temperature-controllable steering wheel according to claim 1, wherein the first generating means comprises at least a heater, a pump disposed on the first pipe, and the pump drives the liquid heated by the heater to flow in the first pipe; the second generating device at least comprises an evaporator and a heat exchanger arranged on the first pipeline, and the refrigerant generated by the evaporator exchanges heat with the liquid in the first pipeline through the heat exchanger so as to reduce the temperature of the liquid in the first pipeline.

7. A method for controlling the temperature of a steering wheel, comprising the steps of:

providing a heat exchange flow channel capable of generating liquid flow, wherein the flowing liquid in the heat exchange flow channel can be in contact with a main body of a steering wheel framework and exchange heat;

providing a first generating means capable of producing a high temperature liquid;

providing a second generating means capable of producing a cryogenic liquid;

allowing the high-temperature liquid prepared by the first generating device to enter the heat exchange flow channel and carrying out heat exchange so as to raise the temperature of the main body of the steering wheel framework;

and allowing the low-temperature liquid prepared by the second generating device to enter the heat exchange flow channel and carrying out heat exchange so as to reduce the temperature of the main body of the steering wheel framework.

8. The temperature control method of a steering wheel according to claim 7, wherein a liquid input flow passage is provided in the steering shaft of the steering wheel frame to supply a liquid before heat exchange, and a liquid output flow passage is provided in the steering shaft of the steering wheel frame to supply a liquid after heat exchange to flow out; wherein the first generating means is permitted to act on the liquid input flow passage to raise the liquid temperature of the liquid input flow passage and the second generating means is permitted to act on the liquid input flow passage to lower the liquid temperature of the liquid input flow passage.

9. The temperature control method of a steering wheel according to claim 8, wherein a flow valve having an adjustable opening degree is provided in the liquid output flow passage to control a speed of the liquid flowing out from the heat exchanging flow passage.

10. The method for controlling the temperature of the steering wheel according to claim 7, wherein a vehicle control system capable of detecting the temperature of the steering wheel is provided, and the vehicle control system controls opening and closing of the first generating device and the second generating device in a real-time feedback mode according to the set temperature.

11. The temperature control method of a steering wheel according to claim 7, wherein a heat conductive material is provided to make a heat conductive layer, and the heat conductive layer is disposed inside a main body of a steering wheel frame and directly contacts with the flowing liquid in the heat exchange flow passage for heat exchange.

12. A vehicle, characterized by comprising:

a temperature-controllable steering wheel;

a battery pack temperature control system;

a refrigeration system; and

a vehicle control system;

a heat exchange flow channel for liquid to flow is arranged in the temperature-controllable steering wheel;

high-temperature liquid in the battery pack temperature control system is communicated with the heat exchange flow through a first pipeline;

a heat exchanger is arranged on the first pipeline;

a refrigerant in the refrigerating system exchanges heat with liquid in the first pipeline through the heat exchanger;

the vehicle control system comprises a temperature detector, a first switch arranged on the first pipeline and a second switch for controlling the opening and closing of the heat exchanger;

the vehicle control system obtains the real-time temperature of the steering wheel through the temperature detector so as to control the opening and closing of the first switch and the second switch.

Technical Field

The invention belongs to the field of automobiles, and particularly relates to a temperature-controllable steering wheel capable of flowing liquid for cooling and heating, a temperature control method of the steering wheel and a vehicle.

Background

At the present stage, customers are anxious about the endurance mileage at low temperature, mainly because a large amount of energy is consumed when heating is started at low temperature, so that a plurality of companies adopt a mode of reducing the power of air-conditioning heating and using related parts in contact with people to perform local heating. The steering wheel is used as a direction control component which must be used in driving, and customers often complain about the condition that the steering wheel is overheated and overcooled to cause discomfort in the using process under the conditions of high temperature (summer) and low temperature (winter).

At present, steering wheels of most motor vehicles in the market do not have the function of adjusting cold and hot temperatures according to needs; so that in hot summer, a driver has to wear gloves to avoid the palm of the hand holding the steering wheel for a long time to sweat and cause skidding; in cold winter, the driver may wear gloves by avoiding direct contact of the hands with the cold steering wheel without turning on the air conditioner in the vehicle. When a driver wears the gloves, the fingers are not flexible and the comfort is poor, and the driving fatigue is accelerated easily, so that traffic accidents are caused.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a temperature-controllable steering wheel, a temperature control method of the steering wheel and a vehicle, which adopt a liquid heat exchange mode to cool and heat the steering wheel.

In one aspect, the present invention provides a temperature-controllable steering wheel, comprising:

a steering wheel armature;

the detection device is used for acquiring the temperature of the steering wheel framework;

a first generating device for preparing high-temperature liquid;

a second generating means for producing a cryogenic liquid; and

a pipeline assembly;

the steering wheel framework comprises a main body and a steering shaft connected with the main body, wherein a heat exchange flow channel is formed in the main body, the steering shaft is of a hollow structure, and a liquid input flow channel for liquid to flow into the heat exchange flow channel and a liquid output flow channel for liquid to flow out of the heat exchange flow channel are arranged in the steering shaft;

the pipeline assembly comprises a first pipeline and a second pipeline, the first pipeline is communicated with the liquid input flow channel, and the second pipeline is communicated with the liquid output flow channel;

the first generating device acts on the first pipeline;

the second generating means acts on the first line.

In the technical scheme of the invention, the temperature of the steering wheel framework is obtained through the detection device, and the process of starting temperature rise or temperature reduction is determined; when the temperature needs to be raised, the first generating device acts on the first pipeline to heat the liquid in the first pipeline, the liquid after the temperature is raised flows into the heat exchange channel through the liquid input channel, and after the liquid is subjected to sufficient heat exchange with the main body, the liquid in the heat exchange channel flows out through the liquid output channel and the second pipeline and is collected or recycled.

When needing the cooling, the second produces the device and acts on first pipeline, carries out the cooling processing with the liquid in the first pipeline, and liquid after the cooling flows to the heat transfer runner through liquid input runner in, carries out abundant heat exchange with the main part after, and liquid in the heat transfer runner flows through liquid output runner, second pipeline and collects or recycles.

It should be noted that, for example, the liquid in the first pipeline may be directly obtained from other cooling systems of the vehicle, or a separate liquid system may be provided, and in order to save space and improve energy utilization, it is preferable that the liquid in the first pipeline is directly obtained from other cooling systems of the vehicle, such as an air conditioning system, and further such as a battery pack cooling system of an electric vehicle.

According to another embodiment of the present invention, the steering shaft includes a shaft body, and an inner tube fixedly disposed in the shaft body, the inner tube having a hollow structure, a liquid input flow passage formed in the inner tube, and a liquid output flow passage formed between the inner tube and an inner wall of the shaft body.

The shaft body is cylindrical, and the inner pipe is fixedly arranged in the center of the shaft body in a cross rod mode, so that a coaxial double-layer cylindrical structure nested inside and outside is formed.

According to another embodiment of the present invention, the first pipeline is connected with the liquid input channel in a rotation fit manner, and the second pipeline is connected with the liquid output channel through a fixed rotary joint, wherein the rotary joint is rotatably arranged outside the inner pipe and is connected with the shaft body in a rotation fit manner.

In order to ensure the sealing of the joint, the joint of the first pipeline and the liquid input flow channel preferably adopts a structural form that a rotary bearing is matched with a bearing sealing ring, and for the same reason, the joint of the second pipeline and the rotary joint and the joint of the rotary joint and the inner pipe also adopt the structural form that the rotary bearing is matched with the bearing sealing ring.

According to another embodiment of the invention, the cavity in the swivel has a first section in the same flow direction as the liquid outlet channel and a second section with an offset outlet, the liquid outlet channel being connected to the inlet of the first section via a rotary bearing, and the second line being fixedly connected to the outlet of the second section.

Wherein the swivel joint is fixed and does not rotate with the rotation of the steering shaft, wherein the second section provides a stable flow path for the liquid flowing out of the liquid output channel, and the second pipeline is easier to arrange.

According to another embodiment of the present invention, the heat exchange flow channel is a one-way heat exchange flow channel with a fixed liquid flow direction, wherein the liquid flow process in the heat exchange flow channel is a stable, resistance-free and abrupt flow process without turbulence, and in order to adapt to the shape of the main body (including spokes and rims), curved surface connection is preferably adopted for transition at the position of the heat exchange flow channel where the flow direction needs to be changed, so as to avoid the flowing water noise generated when the liquid flows.

According to another embodiment of the present invention, the first generating device at least comprises a heater, a pump disposed on the first pipeline, the pump driving the liquid heated by the heater to flow in the first pipeline; the second generating device at least comprises an evaporator and a heat exchanger arranged on the first pipeline, and the refrigerant generated by the evaporator exchanges heat with the liquid in the first pipeline through the heat exchanger so as to reduce the temperature of the liquid in the first pipeline.

First production device in this scheme and second produce the equal direct action of device and first pipeline, when first pipeline is linked together with the second pipeline, liquid can realize recycling, and the structure of whole pipeline assembly is more succinct, and liquid in the heater direct heating first pipeline, the heat exchanger are direct to carry out the heat transfer with the temperature that reduces liquid in the first pipeline, and whole process has splendid nature controlled.

In another aspect, the present invention provides a method for controlling a temperature of a steering wheel, comprising the steps of:

providing a heat exchange flow channel capable of generating liquid flow, wherein the flowing liquid in the heat exchange flow channel can be directly contacted with a main body of a steering wheel framework for heat exchange;

providing a first generating means capable of producing a high temperature liquid;

providing a second generating means capable of producing a cryogenic liquid;

allowing the high-temperature liquid prepared by the first generating device to enter a heat exchange flow channel and carrying out heat exchange so as to raise the temperature of the main body of the steering wheel framework;

and allowing the low-temperature liquid prepared by the second generating device to enter the heat exchange flow channel and perform heat exchange so as to reduce the temperature of the main body of the steering wheel framework.

According to another embodiment of the present invention, a liquid input flow passage is provided in a steering shaft of a steering wheel frame to supply a liquid before heat exchange to an inflow, and a liquid output flow passage is provided in the steering shaft of the steering wheel frame to supply a liquid after heat exchange to an outflow; wherein the first generating means is permitted to act on the liquid input flow passage to raise the liquid temperature of the liquid input flow passage and the second generating means is permitted to act on the liquid input flow passage to lower the liquid temperature of the liquid input flow passage.

According to another specific embodiment of the invention, the opening-adjustable flow valve is arranged in the liquid output flow channel to control the speed of the liquid flowing out of the heat exchange flow channel, for example, when the temperature difference between the inside and the outside of the main body of the steering wheel framework is large, the speed of the liquid flowing out of the heat exchange flow channel can be reduced, more sufficient heat exchange is performed, the utilization rate of energy is further improved, and the energy-saving effect is realized.

According to another embodiment of the present invention, a vehicle control system capable of detecting a temperature of a steering wheel is provided, wherein opening and closing of a first generating device and a second generating device are feedback-controlled in real time according to a set temperature.

According to another embodiment of the invention, the heat conduction layer is made of heat conduction material, and the heat conduction layer is arranged on the inner side of the main body of the steering wheel framework and is directly contacted with flowing liquid in the heat exchange flow channel for heat exchange, so that energy can be better utilized.

In yet another aspect, the present invention provides a vehicle comprising:

a temperature-controllable steering wheel;

a battery pack temperature control system;

a refrigeration system; and

a vehicle control system;

a heat exchange flow channel for liquid flowing is arranged in the temperature-controllable steering wheel;

high-temperature liquid in the battery pack temperature control system is communicated with heat exchange flow through a first pipeline;

a heat exchanger is arranged on the first pipeline;

a refrigerant in the refrigerating system exchanges heat with liquid in the first pipeline through the heat exchanger;

the vehicle control system comprises a temperature detector, a first switch arranged on the first pipeline and a second switch for controlling the opening and closing of the heat exchanger;

the vehicle control system obtains the real-time temperature of the steering wheel through the temperature detector to control the opening and closing of the first switch and the second switch.

The invention directly adopts the flowable liquid in the existing electric vehicle as the refrigerating and heating liquid of the steering wheel for use, greatly reduces the improvement difficulty and the cost of the equipment, simultaneously improves the utilization efficiency of the vehicle, reasonably utilizes the components of the original vehicle, simplifies the structure on one hand, can improve the utilization efficiency of energy on the other hand, particularly reduces the electric quantity consumption of the electric vehicle, and ensures the endurance mileage.

The invention has the following beneficial effects:

the steering wheel with the controllable temperature adopts a liquid heat exchange mode to refrigerate and heat the steering wheel, and has the advantages of simple structure and uniform overall temperature of the steering wheel.

In addition, the shaft body and the inner pipe structure which are nested inside and outside are arranged to form a liquid input flow passage and a liquid output flow passage, so that a non-pipeline design of a steering wheel framework is realized, the assembly difficulty is simplified, the whole structure is simpler, and the use is more convenient;

in addition, adopt the mode of rotating the connection at the junction of steering spindle and first pipeline, second pipeline, the first pipeline of arranging can not rotate along with the rotation of steering spindle with the second pipeline, and overall structure can not take place to rock, drag phenomenons such as, and the structure is ingenious, and the practicality is strong.

According to the temperature control method of the steering wheel, the liquid heat exchange mode is adopted to refrigerate and heat the steering wheel, the control of the temperature of the steering wheel is realized by controlling the inflow and outflow of high-temperature liquid and low-temperature liquid, the temperature control method is carried out in the heat exchange mode, the whole temperature of the steering wheel is more uniform, and the user experience is better.

In addition, through the outflow speed of control liquid from the heat transfer runner to carry out more abundant heat transfer, energy utilization is better.

The vehicle utilizes the in-vehicle refrigeration system to refrigerate the steering wheel body, utilizes the battery pack temperature control system to heat the steering wheel, does not need to add a separate refrigeration and heating system, and has higher energy utilization efficiency, lower cost and more accurate temperature control of the steering wheel.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic side view of a temperature controllable steering wheel according to the present invention;

FIG. 2 is a schematic top view of a temperature controllable steering wheel according to the present invention;

FIG. 3 is a schematic view illustrating a structure of a steering shaft in the temperature controllable steering wheel according to the present invention;

FIG. 4 is a schematic structural diagram of a rotary joint in a temperature-controllable steering wheel according to the present invention;

FIG. 5 is a schematic view of the connection between a first pipe and a liquid input channel in the temperature controllable steering wheel according to the present invention;

FIG. 6 is a schematic view of the distribution of the inner and outer layers of the main body of the temperature controllable steering wheel according to the present invention;

FIG. 7 is a schematic diagram of the principle of the present invention;

FIG. 8 is a schematic flow diagram of the refrigeration process of the present invention;

fig. 9 is a schematic flow diagram of a heating process of the present invention.

Detailed Description