CN212604696U

CN212604696U - Heating and ventilating device for automobile seat

Info

Publication number: CN212604696U
Application number: CN202020997124.2U
Authority: CN
Inventors: 张俊; 邓建明; 于勤; 龚循飞; 易健; 邹发明; 符俊
Original assignee: Jiangxi Isuzu Motors Co Ltd
Current assignee: Jiangxi Isuzu Motors Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-02-26
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses a car seat heating and ventilation device belongs to the car field, and car seat heating and ventilation device includes the seat, the seat includes backrest and cushion, the backrest slope set up in cushion one end, heating device set up in the cushion inlayer, heating device comprises PTC thermistor, the required electric energy of heating device heating is supplied with by energy supply device, blast apparatus is located heating device's below, blast apparatus's air-out end and external intercommunication, the required electric energy of blast apparatus by energy supply device supplies with. The utility model discloses a car seat heating ventilation unit sets up heating and blast apparatus in driving the seat, has solved in moist or cold weather because the uncomfortable problem of feeling of seat humidity or cold production.

Description

Heating and ventilating device for automobile seat

Technical Field

The utility model relates to an automotive filed especially relates to a car seat heating and ventilation device.

Background

The automobile seat is a part which is most contacted by people and an automobile, so the heating and ventilating device for the automobile seat is designed to provide more comfortable driving and riding feeling for people in the automobile. The current automobile seat has the poor problem of gas permeability, can not in time distribute the moisture on the seat. In northern areas of China, due to the fact that the weather is colder, humidity of the seat is more difficult to disperse, so that drivers and passengers have uncomfortable feeling for a long time, and people in the automobile can only passively accept the seat, and the seat is very difficult to accept.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a car seat heating and ventilation device is provided realizes driving away the wetness and dispelling the cold to the seat, provides comfortablely for people's use.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of car seat heating ventilation unit, which comprises a seat, the seat includes backrest and cushion, the backrest slope set up in cushion one end, heating device set up in the cushion inlayer, heating device comprises PTC thermistor, the required electric energy of heating device heating is supplied with by energy supply device, blast apparatus is located heating device's below, blast apparatus's air-out end and external intercommunication, the required electric energy of blast apparatus by energy supply device supplies with.

Preferably, a plurality of the PTC thermistors constitute a honeycomb porous structure.

Preferably, the blowing device is fixed on the inner layer of the cushion through a support, the edge of the support is inserted into the cushion, the support consists of a plurality of support cross beams and a plurality of support longitudinal beams, and the cross beams parallelly and equidistantly penetrate through the longitudinal beams to form a plurality of structures shaped like a Chinese character jing.

Preferably, the blowing device comprises a first fan and a second fan, and the edges of the first fan and the second fan are welded and fixed with the bracket cross beam and the bracket longitudinal beam.

Preferably, the first fan and the second fan are connected in parallel through a wire.

Preferably, the on and off of the first fan and the second fan connected in parallel are controlled by a fan on switch.

Preferably, the power on and off of the PTC thermistor is controlled by a temperature-open switch.

Preferably, a sliding rheostat for regulating a circuit is disposed between the temperature-opening switch and the PTC thermistor.

Preferably, the heating device is connected with the blowing device in parallel, and the on-off of the heating device and the blowing device circuit is controlled by a main switch.

Preferably, the circuit of the heating device and the circuit of the blowing device are connected with the main switch and finally form a closed loop through an energy supply device, the energy supply device takes an on-vehicle lead storage battery as energy source and supplies power through a lead wire in an on-vehicle cigarette lighter.

The utility model has the advantages that:

1. the PTC thermistor is used as a heating device and is a positive temperature coefficient thermistor, the temperature is increased along with the extension of the heating time, the resistance value of the resistor is increased, the current in a circuit branch of the heating device is increased, and the current is I according to the Joule law Q²RT shows that the heat generated by the PTC thermistor is increased, so that the heat generating efficiency of the PTC thermistor is improved along with the time, the heat generating efficiency of the heating device is accelerated by using the PTC thermistor and arranging a circuit,the seat can reach higher temperature quickly, and the time for dispelling cold and damp is shortened;

2. the sliding rheostat is used for controlling the resistance of the circuit branch of the heating device, so that the function of controlling the current in the heating circuit is achieved, the heating efficiency of the heating circuit is further controlled, and the sliding rheostat is convenient to use for people with different heat induction;

3. the fan is used for heat dissipation and damp dispelling, the temperature generated by the heating device is prevented from being overhigh, and meanwhile, the fan has the function of circulating air, so that the damp dispelling and cold dispelling efficiency of the seat can be improved;

4. the heating circuit and the blowing circuit are controlled by different switches, and a driver can select a heating or blowing independent working mode or a heating or blowing working mode which is used by the heating and blowing independent working modes according to actual needs, so that the heating and blowing device is convenient to use.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a heating and ventilating device for a vehicle seat according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an air blowing device in a heating and ventilating device for an automobile seat according to an embodiment of the present invention;

fig. 3 is a schematic view showing the shape of the PTC thermistor assembly in the heating and ventilating device for a vehicle seat according to the embodiment of the present invention;

fig. 4 is a schematic circuit connection diagram of a heating and ventilating device for a car seat according to an embodiment of the present invention.

In the figure:

1. a seat back; 2. a cushion; 21. a PTC thermistor; 211. a temperature-activated switch; 212. a slide rheostat; 22. a blowing device; 221. a bracket beam; 222. a support stringer; 223. a first fan; 224. a second fan; 225. a fan turn-on switch; 3. a master switch; 4. and an energy supply device.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in figures 1-4 of the drawings,the utility model provides a car seat heating ventilation unit, which comprises a seat, the seat includes backrest 1 and cushion 2, backrest 1 slope sets up in 2 one ends of cushion, still include heating device, heating device sets up in 2 inlayers of cushion, heating device comprises PTC thermistor 21, the required electric energy of heating device heating is supplied with by energy supply device 4, utilize PTC thermistor 21 as heating device, PTC thermistor 21 is positive temperature coefficient thermistor, along with the extension of heating time, the temperature rises, the resistance increases, the electric current increase in the heating device circuit branch road, according to joule law Q ═ I²RT can know, the heat that PTC thermistor 21 produced increases, therefore, PTC thermistor 21's heat production efficiency can produce the effect that improves along with the lapse of time, consequently, use and the setting of circuit through PTC thermistor 21, heating device's heat production efficiency has been accelerated, make that the seat can be faster reach higher temperature, cold-dispelling and damp-dispelling time has been shortened, still include blast apparatus 22, blast apparatus 22 is located heating device's below, blast apparatus 22's air-out end and external intercommunication, the required electric energy of blast apparatus 22 is supplied with by energy supply device 4, blast apparatus 22 plays the overheated effect of seat on the one hand, on the other hand can accelerate the cold-dispelling efficiency of seat.

In order to improve the heat generating and transferring effect of the heating device, further, a plurality of PTC thermistors 21 are formed into a honeycomb porous structure.

In order to be fixed in cushion 2 with blast apparatus, furtherly, blast apparatus 22 is fixed in cushion 2 inlayer through the support, and in the support edge inserted cushion 2, the support comprises many support crossbeams 221 and many support longerons 222, and support crossbeam 221 passes support longeron 222 parallelly equidistant and forms a plurality of "well" style of calligraphy structures, chooses three support crossbeams 221 and two support longerons 222 to carry out the construction of support in this application.

In order to fix the blowing device and the bracket, further, the blowing device 22 includes a first fan 223 and a second fan 224, edges of the first fan 223 and the second fan 224 are welded and fixed with the bracket cross beam 221 and the bracket longitudinal beam 222, and in actual use, more fans can be used according to needs.

In order to enable the first fan and the second fan to work without influencing each other, further, the first fan 223 and the second fan 224 are connected in parallel through a wire, and when any one of the fans is damaged, the rest fans can still work normally.

To control the fans to be turned on and off, further, the turning on and off of the first fan 223 and the second fan 224 connected in parallel is controlled by a fan-on switch 225.

To control the on and off of the heating device, further, the energization and de-energization of the PTC thermistor 21 is controlled by a temperature-opening switch 211.

In order to control the heating efficiency of the heating circuit, a sliding resistor 212 for adjusting the circuit is further provided between the temperature opening switch 211 and the PTC thermistor 21.

In order to control the on and off of the overall circuit, further, the heating device is connected in parallel with the blowing device 22, and the on and off of the heating device and the blowing device 22 are controlled by the overall switch 3.

In order to provide the electric energy used by the circuit, further, the circuit of the heating device and the circuit of the blowing device 22 are connected with the main switch 3 and finally form a closed loop through the energy supply device 4, the energy supply device 4 takes an on-board lead storage battery as energy source and is powered through a lead wire in an on-board cigarette lighter.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a car seat heating and ventilation device for dispel the humidity and the cold air of seat in the car, car seat heating and ventilation device its characterized in that includes:

the seat comprises a seat backrest (1) and a seat cushion (2), wherein the seat backrest (1) is obliquely arranged at one end of the seat cushion (2);

the heating device is arranged on the inner layer of the cushion (2), the heating device is composed of a PTC thermistor (21), and the electric energy required by heating of the heating device is supplied by an energy supply device (4);

the blowing device (22), the blowing device (22) is located below the heating device, the air outlet end of the blowing device (22) is communicated with the outside, and the electric energy required by the blowing device (22) is supplied by the energy supply device (4).

2. The heating and ventilation device for the seat of the vehicle as claimed in claim 1, wherein:

a plurality of the PTC thermistors (21) form a honeycomb porous structure.

3. The heating and ventilation device for the seat of the vehicle as claimed in claim 1, wherein:

the blowing device (22) is fixed on the inner layer of the cushion (2) through a bracket, and the edge of the bracket is inserted into the cushion (2);

the support is composed of a plurality of support cross beams (221) and a plurality of support longitudinal beams (222), wherein the cross beams (221) penetrate through the longitudinal beams (222) in parallel at equal intervals to form a plurality of structures shaped like Chinese character 'jing'.

4. The heating and ventilation device for the seat of the automobile as claimed in claim 3, wherein:

the blowing device (22) comprises a first fan (223) and a second fan (224), and the edges of the first fan (223) and the second fan (224) are welded and fixed with the bracket cross beam (221) and the bracket longitudinal beam (222).

5. The heating and ventilation device for the seat of the automobile as claimed in claim 4, wherein:

the first fan (223) and the second fan (224) are connected in parallel through a lead.

6. The heating and ventilation device for the seat of the automobile as claimed in claim 5, wherein:

the on and off of the first fan (223) and the second fan (224) which are connected in parallel are controlled by a fan on switch (225).

7. The heating and ventilation device for the seat of the vehicle as claimed in claim 1, wherein:

the power-on and power-off of the PTC thermistor (21) are controlled by a temperature opening switch (211).

8. The heating and ventilation device for the seat of the vehicle as claimed in claim 7, wherein:

a sliding rheostat (212) used for adjusting a circuit is arranged between the temperature opening switch (211) and the PTC thermistor (21).

9. The heating and ventilation device for the seat of the vehicle as claimed in claim 1, wherein:

the heating device is connected with the blowing device (22) in parallel, and the on-off of the circuit of the heating device and the blowing device (22) is controlled by a main switch (3).

10. The heating and ventilation device for the vehicle seat according to claim 9, wherein:

the circuit of the heating device and the circuit of the blowing device (22) are connected with the main switch (3) and finally form a closed loop through an energy supply device (4);

the energy supply device (4) is powered by a vehicle-mounted lead storage battery serving as an energy source and a lead wire led out from the vehicle-mounted cigarette lighter.