KR101573253B1 - seat air conditioner for vehicles and controll method therefor - Google Patents

Abstract

To a vehicle seat air-conditioning apparatus for supplying air to a seat or a backrest of a ventilation sheet installed in a vehicle. The present invention provides a ventilation system, comprising: a ventilation duct for guiding air to the ventilation sheet; A blower for supplying air to the ventilation duct; A sheet temperature sensor installed on the ventilation sheet for measuring the temperature of the ventilation sheet; And a controller for driving the blower by applying a driving signal to the blower based on a sheet temperature measured by the sheet temperature sensor. The present invention can smoothly supply air to the ventilation sheet.

Description

TECHNICAL FIELD [0001] The present invention relates to a seat air conditioner for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular seat air-conditioning apparatus and a control method therefor, and more particularly, to a vehicle seat air-conditioning apparatus for cooling or heating a ventilated seat by supplying air to a ventilated seat of a vehicle, ≪ / RTI >

In general, the seat is composed of a seat plate, a backrest and a leg so that a person can sit on the seat, and a seating plate having a cushion when the seat is installed in a vehicle and a backrest.

A vehicle is provided with a ventilation sheet to which an air conditioner in which air is discharged while a convenience device is increasing, and a demand is greatly increased.

1, the ventilation sheet ST is formed of a seat plate or a backrest, and a branch passage Pa branched from the collecting passage Pb and the collecting passage Pb is formed in the shape of a hole on the rear surface, The branch passage Pa communicates with the surface of the seat plate and the back as shown in Fig.

The ventilation sheet ST is provided with a blower B for supplying air to the rear side and the other side is connected to the collecting flow path Pb while one side is connected to the blower B, And a duct D for supplying the air to the collecting flow path Pb.

In this general conventional ventilation sheet ST, when the seated person operates the drive switch (not shown), the blower B supplies the air to the duct D under the control of the controller C, And air is discharged through the branch passage (Pa).

Accordingly, the ventilation sheet ST is cooled by air, and air is supplied to the back of the seated person and the like, and the temperature and humidity of the seating surface are controlled to improve the convenience of the seated person.

However, since the above-described general ventilation sheet ST is operated by a driver who is not shown, the user must adjust the air volume to a desired air volume, which is troublesome and inconvenient to use. have. In particular, in recent years, as the demand level of the user has increased, the operation of the drive switch has been considered very inconvenient.

Here, the blower (B), the duct (D), and the controller (C) described above are air conditioners for supplying air to the ventilation sheet (ST).

2 to 5, the blower B includes a suction port 1a through which air is sucked into the central portion, and a discharge port 1b communicating with the inner space and discharging air is provided at one side A closed case 1 formed; A rotation shaft 3 installed vertically inside the case 1 and rotating; A bearing B installed at the outer circumference of the rotary shaft 3; A hollow bearing housing (4) fixed to the inner periphery of the bearing (Br); A core (6) having a coil (8) wound around the bearing housing (4) to provide a magnetic force; (7) installed between the core (6) and the bearing housing (4) to insulate the coil (8) or the core (6); An impeller 5 fixed to the rotary shaft 3 and rotating; A magnet (9) installed on the impeller (5) to generate attraction or repulsive force by the magnetic force of the coil (8) to rotate the impeller (5); And an insertion hole 2c which is installed horizontally below the impeller 5 and into which the bearing housing 4 and the insulation 7 are inserted and the core 6 and the magnet 9 And a substrate 2 on which a driving element 2b for supplying power to the coil 8 to drive the impeller 5 is mounted.

In this conventional blower B, as the magnetic force is generated in the coil 8 by the driving element 2b of the substrate 2, the magnet 9 generates attractive force or repulsive force to move the impeller 5, At high speed. Accordingly, the impeller 5 sucks air into the inlet 1a of the case 1 and discharges air through the outlet 1b, as shown in FIG.

2, the conventional blower B has the Hall element 2a and the driving element 2b mounted on the upper surface of the substrate 2 so as to face the impeller 5 . Therefore, there is a problem that the hall element 2a and the driving element 2b generate noises due to the air generated when the impeller 5 rotates, and the height H of the case 1 is increased The miniaturization of the case 1 is hindered.

The insertion holes 2c formed in the substrate 2 are formed in a circular shape as shown in FIG. 3 so that when the substrate 2 is assembled, the substrate 2 flows in a circumferential direction Therefore, there is a problem that the coil device 8 and the magnet 9 can not be precisely detected because the position of the Hall element 2a is not properly positioned.

Particularly, as shown in FIG. 2, the substrate 2 is not press-fitted into the insertion hole 2c so that it can not be accurately fixed at the time of assembly.

In addition, since the substrate 2 is formed of a metal PCB so as to dissipate heat of the driving element 2b and the Hall element 2a, the cost of the substrate 2 is excessively increased. When the substrate 2 is formed of a general PCB to reduce the thickness of the case 1, the heat dissipating fins should be installed inside the case 1 so that the case 1 is uneven or the overall weight is increased by the heat dissipating fins It is not possible to try because problems arise.

Also, as shown in FIG. 5, the discharge port 1b has a problem that some of the discharged air forms a dead zone DZ which is destroyed by a differential pressure due to the rotation of the impeller 5, There is a problem in that a loss of the signal is generated.

KR 10-1201301 KR 10-1345980

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and provides a vehicular seat air conditioning apparatus capable of automatically operating a blower according to the temperature of a ventilation sheet.

Also, the present invention provides a blower capable of preventing noise from being generated due to air generated inside the case by arranging elements mounted on a substrate opposite to the impeller, and reducing the height of the case.

The present invention also provides a blower capable of easily assembling a substrate by providing a member for centering the substrate at the time of assembling the substrate, in particular, precisely positioning the substrate accurately.

In addition, the heat generated from the substrate can be dissipated from the inside of the case, particularly, the heat can be dissipated from the discharge port of the case, the heat dissipating area can be structurally expanded to maximize heat dissipation, The present invention provides a blower capable of preventing the occurrence of a dead zone by dispersing air to be supplied to the blower.

The present invention also provides a blower capable of locally reducing the thickness of the case to accommodate elements mounted on the substrate on the inner surface of the case.

In addition, the blower can be operated in multiple stages according to the comparison result by comparing the temperature of the ventilation sheet and the predetermined blower driving temperature or the sheet temperature. In addition, the blower can be operated according to the temperature of the room, Another object of the present invention is to provide a seat air conditioner for a vehicle which can automatically adjust the air volume of the blower according to a change temperature over time.

According to an aspect of the present invention, there is provided a vehicular seat air-conditioning apparatus for supplying air to a seat or a back of a ventilating seat installed in a vehicle, the vehicular seat air-conditioning apparatus comprising: a ventilating duct for guiding air to the ventilating seat; A blower for supplying air to the ventilation duct; A sheet temperature sensor installed on the ventilation sheet for measuring the temperature of the ventilation sheet; And a controller for driving the blower by applying a driving signal to the blower based on a sheet measurement temperature applied by the seat temperature sensor

Alternatively, the above-mentioned object may be achieved by a method of controlling a seat air-conditioning system for a vehicle, which operates a blower installed in a vehicle to supply air to a surface of a ventilation sheet through a ventilation duct provided in the ventilation sheet of the vehicle, Confirming the operation of the ventilation mode and driving the seat temperature sensor installed on the seat; A sheet temperature measuring step of measuring the temperature of the sheet through the sheet temperature sensor; And a blower driving step of comparing the seat measurement temperature of the seat temperature sensor with a predetermined blower driving temperature and driving the blower by applying a driving signal to the blower according to a comparison value Lt; / RTI >
The blower driving step may be configured to control the driving of the blower at a speed corresponding to the sheet measurement temperature received from the sheet temperature controller to apply a driving signal for driving the air volume of the blower in multiple stages to the blower .
The blower drive step may include a step of comparing the seat measurement temperature measured by the seat temperature sensor and the reference temperature of the strong wind determined by the blower drive temperature to output a drive signal to the blower only when the measured temperature of the seat is higher than the reference temperature of the strong wind A first step of operating the blower in a strong wind mode; Comparing the seat measurement temperature and the stall reference temperature set at the blower drive temperature when the seat measurement temperature is lower than the strong wind reference temperature in the first step, A second step of operating the blower in a blowing mode by applying a driving signal to the blower only when the blower is larger than the blower; And comparing the sheet measurement temperature and the weak wind reference temperature set at the blower drive temperature when the sheet measurement temperature is lower than the stall reference temperature in the second step, And a third step of operating the blower in the weak wind mode by applying a driving signal to the blower only when the blower is greater than the first blower.
Alternatively, the blower driving step may include applying the driving signal to the blower in accordance with the comparison value calculated by comparing the sheet measurement temperature and the reference temperature of the sheet set at the blower drive temperature, Or a reference change temperature set to the blower drive temperature, and applies a drive signal to the blower in accordance with the comparison value calculated by comparing the sheet change temperature with a reference change temperature set at the blower drive temperature, The seat measurement temperature and the indoor measurement temperature of the indoor temperature sensor installed in the vehicle are compared with each other, and a driving signal may be applied to the blower according to the calculated comparison value.
In this blower driving step,
The blower driving step may include: a first step of applying a driving signal to the blower only when it is determined that the sheet measuring temperature measured by the sheet temperature sensor is greater than a predetermined sheet reference temperature (reference temperature of the sheet); A second step of calculating the sheet change temperature by comparing the sheet measurement temperature for a predetermined time when the sheet measurement temperature is lower than the sheet reference temperature in the first step; Determining whether the sheet change temperature calculated in the second step is greater than a predetermined reference change temperature, and applying a drive signal to the blower only when it is determined that the sheet change temperature is greater than a predetermined reference change temperature; A fourth step of calculating a temperature difference by comparing the seat measurement temperature and the indoor measurement temperature when the seat change temperature is lower than the reference change temperature in the third step; And a fifth step of determining whether the temperature difference calculated in the fourth step is greater than a temperature difference reference temperature set at the blower driving temperature, and applying a driving signal to the blower only when the temperature difference is greater than the reference temperature.

In the present invention as described above, since the blower is automatically operated by the controller according to the temperature of the ventilation sheet, not only the convenience can be improved, but also the safe operation can be achieved and a pleasant environment can always be provided.

The elements mounted on the substrate of the blower may be disposed on the opposite side of the impeller to prevent noise from being generated by the air generated inside the case and reduce the height of the case.

In addition, a member for centering the substrate at the time of assembling the above-described substrate is provided, so that the substrate can be easily assembled, in particular, the substrate can be precisely positioned.

In addition, it is possible to dissipate the heat generated in the above-described substrate from the inside of the case, in particular, to dissipate heat at the discharge port of the case, and to expand the heat dissipation area structurally to maximize heat dissipation, It is possible to disperse the air that is discharged through the discharge port to prevent occurrence of a dead zone.

In addition, the thickness of the case described above can be locally reduced to accommodate elements mounted on the substrate on the inner surface of the case.

Moreover, since the blower is driven by comparing the sheet measurement temperature at which the temperature of the ventilation sheet is measured and the predetermined blower driving temperature, the air can be appropriately supplied to the actual temperature of the ventilation sheet.

In addition, since the driving speed of the blower can be adjusted in multiple stages based on the sheet measurement temperature provided in real time, the air volume corresponding to the received sheet measurement temperature can be provided to the ventilation sheet.

Furthermore, since the blower can be driven based on the room temperature at which the ventilation sheet is installed, it is possible to provide air suited to the indoor environment of the vehicle.

In addition, since the blower can be driven based on the sheet change temperature with time of the ventilation sheet, the driving of the blower can be automatically controlled according to whether or not the user is seated.
On the other hand, since the blower can be operated in the strong wind mode, the neutral wind mode or the weak wind mode according to the comparison value by comparing the sheet measurement temperature with the preset gale reference temperature, the paralle reference temperature or the weak wind reference temperature, The sheet can be cooled.
Further, it is also possible to drive the blower by comparing the sheet measurement temperature and a predetermined sheet reference temperature to drive the blower, or to compare the sheet change temperature calculated in proportion to time with the sheet measurement temperature and the predetermined reference change temperature, The blower can be driven by calculating the temperature difference by comparing the sheet measurement temperature and the indoor measurement temperature, and comparing the temperature difference and the predetermined temperature difference reference temperature, so that the blower can be operated according to various conditions to cool the ventilation sheet.

1 is a side view schematically showing the structure of a ventilation sheet provided with a general conventional air conditioning apparatus;
Fig. 2 is a longitudinal sectional view showing the configuration of the blower shown in Fig. 1; Fig.
3 is a plan view of the substrate shown in FIG. 2;
Figure 4 is a perspective view of the blower shown in Figure 1;
FIG. 5 is a plan sectional view schematically showing the structure of the blower shown in FIG. 4; FIG.
6 is a side view schematically showing a seat air-conditioning system for a vehicle according to an embodiment of the present invention;
FIG. 7 is a longitudinal sectional view showing the configuration of the blower shown in FIG. 6; FIG.
FIG. 8 is a plan view of the substrate shown in FIG. 7; FIG.
Figure 9 is a perspective view of the blower shown in Figure 6;
10 is a block diagram showing the configuration of the controller shown in FIG. 6;
11 is a flowchart showing a control method according to an embodiment of the present invention; And
12 is a flowchart showing a detailed configuration of the sheet temperature measuring step shown in Fig.

Hereinafter, a vehicle seat air-conditioning apparatus and a control method therefor according to an embodiment of the present invention will be described with reference to the accompanying FIGS. 6 to 12. The reference numerals in the drawings related to the control method in the description are shown in parentheses Explain it by stitches.

A seat air-conditioning system for a vehicle according to an embodiment of the present invention is mounted on a ventilation sheet ST provided on a vehicle, which is constituted by a seat plate or a backrest as shown in Fig. As shown in the figure, the ventilation sheet ST is formed such that the branch passage Pa branched from the collecting passage Pb and the collecting passage Pb is formed in the shape of a hole and the branch passage Pa is seated And communicates with the surface of the plate or back.

The vehicular seat air conditioning system according to the embodiment of the present invention includes the ventilation duct DT, the blower BR, the seat temperature sensor T1 and the controller CT as shown in Fig.

The ventilation duct DT is formed of a tubular body and is installed on the back or bottom of the ventilation sheet ST as shown in Fig. However, the ventilation duct DT may be embedded inside the ventilation sheet ST unlike the illustration. The vent duct DT is connected at one end to the collecting passage Pb of the ventilation sheet ST and at the other end to the discharge port of the blower BR described later. The ventilation duct DT guides the air discharged from the blower BR to the collection passage Pb of the ventilation sheet ST and supplies air to the surface of the ventilation sheet ST through the branch passage Pa .

The blower BR is installed on the back surface or the bottom surface of the ventilation sheet ST as shown in Fig. However, the blower BR may be installed inside the ventilation sheet ST unlike the illustration. The blower BR includes a case 50, a rotary shaft 61, a housing 62, an insulation 63, an impeller 91, a magnet 92 and a substrate 70 as shown in Fig. 7 .

7 and 9, the case 50 is formed with a suction port 50a through which air is sucked into the center, and a discharge port 50b communicating with the inner space and discharging air is formed at one side to be. That is, as shown in FIGS. 7 and 9, the case 50 is a closed-type four-way cylinder having a space therein. Both sides of the case 50 are ventilated by the suction port 50a and the discharge port 50b. The case 50 may have a discharge port 50b protruding at one side thereof in the form of a duct, or may be formed in a hole shape.

The rotating shaft 61 is a member vertically installed in the case 50 and rotating as shown in FIG. The rotating shaft 61 is vertically installed at the center of the case 50 as shown in FIG.

7, the bearing housing 62 is a hollow member fixed to the outer periphery of the rotary shaft 61 and having a bearing B for supporting the rotary shaft 61 fixed.

7, the bearing housing 62 is formed into a cylindrical shape and is fitted and fixed to the boss of the case 50. The bearing housing 62 rotatably supports the outer periphery of the rotation shaft 61, Lt; / RTI >

7, the bearing housing 62 is formed with a step on the inner circumference thereof to fix the bearing B in a locked state, and a seating jaw on which the core 64a to be described later is seated is formed on the outer periphery .

The electromagnet (64) is a component that provides magnetic force outside the bearing housing (62). As shown in FIG. 7, the electromagnet 64 includes a core 64a composed of a plurality of magnetic metal plates and a coil 64b wound on the core 64a. When electric power is applied to the coil 64b Generate magnetic force.

The insulating joint 63 is a member installed between the electromagnet 64 and the bearing housing 62 to insulate the electromagnet 64 as shown in FIG. The insulating joint 63 is formed in a tubular shape as shown in the drawing and is fitted to the outer circumferential surface of the bearing housing 62 to insulate the electromagnet 64.

The impeller 91 is fixed to the rotary shaft 61 and rotates as shown in FIG. The impeller 91 may be a centrifugal fan such as a sirocco fan as shown in FIG.

The magnet 92 is installed on the impeller 91 as shown in FIG. 7, and faces the electromagnet 64. The magnet 92 generates an attractive force or a repulsive force by the electromagnet 64 to rotate the impeller 91.

Here, the impeller 91 and the magnet 92 described above are the rotor 90 that rotates inside the case 50. The electromagnet 64 described above is a stator fixed inside the case 50. [

The substrate 70 is installed horizontally inside the case 50 as shown in FIG. The substrate 70 is preferably installed horizontally below the impeller 91 as shown. At this time, the substrate 70 is installed on the bottom surface of the case 50 as shown in FIG. 7,

7 and 8, an insert hole 70c into which the bearing housing 62 or the insulation joint 63 is inserted is formed, for example, And a Hall element 70b for sensing the position of the electromagnet 64 or the magnet 92 and a driving element 70a for driving the electromagnet 64 are mounted.

 7, the Hall element 70b and the driving element 70a are mounted on the lower surface of the board 70, and the board 70 is installed on the opposite side of the impeller 91. The substrate 70 is separated from the bottom surface of the case 50 as the Hall element 70b or the driving element 70a is seated on the bottom surface of the case 50 as shown in FIG. .

7, a grooved groove sheet G is formed on the inner surface of the case 70 opposite to the hole element 70b or the driving element 70a of the substrate 70 Thereby accommodating the Hall element 70b and the driving element 70a in the groove sheet G. [

Therefore, the hole 50a is accommodated in the region where the thickness T is locally reduced by the groove sheet G, so that the overall height H can be reduced As a result, it is not only possible to manufacture in a compact size, but also the weight is reduced.

8, a keyway 70d is formed on the outer periphery of the insertion hole 70c. 7, a key 63a (refer to FIG. 7) which is key-engaged with the key groove 70d to position the substrate 70 in the interior of the case 50 as shown in FIG. Is formed.

The key 63a is inserted into the key groove 70d at the time of assembling the insulation joint 63 and is spaced apart from the inner circumference of the key groove 70d by an air gap as shown in FIG. Accordingly, the substrate 70 can flow to the left and right as long as the gap is formed.

8, the bearing housing 62 is press-fitted and fixed to the insulating joint 63 so that the bearing housing 62 is pressed outward, As the boss pushes outwardly, it is forced into the key groove 70d. At this time, the key 63a is completely in close contact with the inner circumference of the key groove 70d as shown in FIG. Accordingly, the key 63a prevents the substrate 70 from flowing to the left and right.

Meanwhile, the case 50 is provided with a heat dissipating member 40 as shown in FIGS. 7 and 9, the heat dissipating member 40 is attached to the inner surface of the case 50 to transmit the heat of the Hall element 70b or the driving element 70a of the substrate 70 And a heat radiating plate 41 for radiating heat.

7, the heat dissipation plate 41 is installed on the groove sheet G and is in close contact with the hole element 70b and the driving element 70a housed in the groove sheet G. Accordingly, the heat dissipating plate 41 receives the heat of the Hall element 70b and the driving element 70a and radiates heat.

For example, the heat dissipation plate 41 may be formed in a band shape as shown in FIG. 9, and may be attached from the lower portion of the substrate 70 to the discharge port 50b of the case 50. [

The heat dissipation member 40 may further include a heat dissipation fin 42 connected to the heat dissipation plate 41 and bent in a zigzag shape to enlarge the surface area, as shown in FIG. It is preferable that the radiating fin 42 is formed at the end of the radiating plate 41 and is located inside the discharging opening 50b as shown in FIG. 9 for radiating efficiency.

As shown in FIG. 9, the heat dissipation fins 42 are preferably configured to disperse the air exhausted through the ejection openings 50b in a plurality of sections along the cross-sectional area of the ejection openings 50b. Accordingly, since the discharged air is dispersed by the radiating fin 42, the conventional dead zone is not generated.

On the other hand, the above-described sheet temperature sensor T1 is installed in the ventilation sheet ST as shown in Fig. 6 to measure the temperature of the ventilation sheet. The sheet temperature sensor T1 may be installed on the surface of the ventilation sheet ST as shown in the drawing or may be provided inside the ventilation sheet ST adjacent to the surface of the ventilation sheet ST, ) Is preferably measured. Alternatively, the sheet temperature sensor T1 may be constituted by a temperature sensor mounted on a normal heating mat (not shown) provided on the surface of the ventilation sheet ST.

On the other hand, the above-described controller (CT) may be provided on the back or bottom surface of the ventilation sheet ST as shown in Fig. 6, or alternatively may be embedded in the ventilation sheet ST. The controller CT drives the blower BR by applying a driving signal to the above blower BR based on the sheet measurement temperature applied by the sheet temperature sensor T1.

The controller CT may include a receiving unit CTa, a comparing unit CTc, and a controller CTd, as shown in FIG. The receiving section CTa receives the measured temperature of the seat from the seat temperature sensor T1 or transmits the ventilation switch operating signal or the ventilation switch operating signal via an electronic device such as an ECU or a ventilation switch module And receives a start confirmation signal by starting the vehicle. The ventilation switch module WM described above is an ordinary switch module not shown for setting the ventilation mode of the ventilation sheet ST. The ventilation switch module WM may be installed in a dashboard, a center fascia, a seat or a door of a vehicle, and may be provided with a button for selecting an auto mode. Since the ventilation switch module WM is a conventional device applied to a conventional ventilation sheet, it can be easily understood by those skilled in the art, and a detailed description thereof will be omitted.

The comparison unit CTc compares the sheet measurement temperature received by the reception unit CTa with a predetermined blower drive temperature and applies a drive signal to the blower BR. Here, the blower drive temperature may be a sheet reference temperature for judging the ventilation of the ventilation sheet ST by comparing the sheet measurement temperature measured from the sheet temperature sensor T1, And the temperature difference reference temperature for judging the driving of the blower BR by comparing the reference change temperature for judging driving of the blower BR or the temperature difference between the room temperature of the vehicle and the ventilation sheet ST . The blower drive temperature may be composed of a strong wind reference temperature, a pneumatic reference temperature, or a weak wind reference temperature for controlling the wind speed of the blower BR in multiple stages by comparing the sheet measurement temperatures.

The control unit CTd supplies power to the comparison unit CTc and the reception unit CTa to control the operation of the comparison unit CTc and the reception unit CTa.

On the other hand, as shown in FIG. 10, the controller CT is configured such that the above-mentioned receiving portion CTa is installed in the vehicle interior or installed in the ventilating seat ST to measure the room temperature from the room temperature sensor T2, Temperature can be received. In this case, the comparator CTc operates the blower BR by applying a driving signal to the blower BR based on the room temperature of the room temperature sensor T2 and the seat temperature of the seat temperature sensor T1 .

In addition, the controller CT may be provided with a timer CTb as shown in FIG. The timer CTb counts the operation time of the sheet temperature sensor T1 and provides the counted time to the comparison section CTc. At this time, the comparator CTc calculates the blower BR based on the sheet measurement temperature applied from the sheet temperature sensor T1 and the change temperature of the ventilation sheet ST, that is, the sheet change temperature, according to the counting time of the timer CTb. As shown in FIG.

10 and 11, the vehicle seat air-conditioning system according to the embodiment of the present invention configured as described above is configured such that the start-up confirmation signal is received through the reception unit CTa of the controller CT If it works. At this time, the controller CT checks whether the ventilation mode signal is received from the ventilation switch module WM through the receiving part CTa (S1 and S2 in FIG. 11).

The controller CT determines that the sheet measurement temperature received from the sheet temperature sensor T1 to the receiving portion CTa is lower than the predetermined blower drive temperature (S3 and S6 in Fig. 11). At this time, the comparator CTc applies a driving signal to the blower BR when the sheet measuring temperature is higher than the sheet reference temperature. For example, the comparison section CTc is set so that the sheet reference temperature at a predetermined blower drive temperature is set to 18 degrees, and when the vehicle is parked outdoors and the surface of the ventilating sheet ST is heated, When the measurement temperature is 35 degrees, a driving signal is applied to the blower BR so as to cool the ventilation sheet ST to drive the blower BR. 6, the blower BR blows air to the surface of the ventilation sheet ST through the ventilation duct ST through the collection passage Pb and the branch passage Pa through the ventilation duct DT, And the ventilation sheet ST is cooled by discharging.

The comparator CTc compares the counting time received in the timer CTb and the sheet measuring temperature received in real time in the sheet temperature sensor T1, when the sheet measuring temperature is lower than or equal to the sheet reference temperature described above, And calculates the changing temperature of the ventilation sheet ST, that is, the sheet changing temperature with the passage of time. When the temperature of the ventilation sheet ST rises in proportion to the time, the comparator CTc judges that the user is seated on the ventilation sheet ST. 11, the comparator CTc compares the reference change temperature of the predetermined blower drive temperature with the calculated sheet change temperature, and when the sheet change temperature is greater than the reference change temperature, the comparator CTc drives the blower BR Signal. For example, when the reference change temperature is 18 degrees and the sheet change temperature is 25 degrees, the comparison section CTc determines that the ventilation sheet ST is seated and drives the blower BR. Therefore, the blower BR blows air to the ventilation sheet ST in the same manner as described above to cool the ventilation sheet ST (S4 and S6 in FIG. 11)

Alternatively, when the sheet change temperature is equal to or lower than the reference change temperature, the comparison unit CTc compares the indoor measurement temperature applied by the indoor temperature sensor T2 and the sheet measurement temperature of the sheet temperature sensor T1, . Then, the comparator CTc compares the calculated temperature difference with a predetermined temperature difference reference temperature, and operates the blower BR when the temperature difference calculated from the temperature difference reference temperature is large. At this time, the comparison unit CTc determines that the ventilation sheet ST is heated when the temperature of the ventilation sheet ST is higher than the air temperature of the room. For example, when the room temperature is 20 degrees and the temperature of the ventilation sheet ST is 30 degrees, the comparison section CTc determines that the ventilation sheet ST is heated, and the temperature difference between 5 degrees and 3 degrees The blower (BR) is operated because the temperature difference calculated by comparing the predetermined temperature difference reference temperature is higher than the temperature difference reference temperature. Therefore, the blower BR blows air to the ventilation sheet ST in the same manner as described above to cool the ventilation sheet ST (S5 and S6 in Fig. 11). [

On the other hand, as shown in FIG. 12, when the sheet measuring temperature is higher than the predetermined reference temperature of the blower driving temperature, the comparator CTc applies a driving signal for controlling the driving speed of the blower BR to the blower BR do. For example, the comparator CTc determines that the ventilation sheet ST should be cooled by strong winds when the sheet measurement temperature is 35 degrees and the strong wind reference temperature is 30 degrees, and the blower BR is operated with strong wind. Therefore, the ventilation sheet ST is rapidly cooled (S3-1 and S3-4 in Fig. 12)

Alternatively, when the sheet measuring temperature (for example, 25 degrees) is higher than the predetermined reference air temperature (for example, 20 degrees), the comparator CTc outputs a drive signal for operating the blower BR as a blow to the blower BR . At this time, the comparator CTc operates the blower BR as a paralyzed air only when the sheet measurement temperature is lower than the above-mentioned gust standard temperature, higher than the weak wind reference temperature described later, and higher than the stall reference temperature. Therefore, the ventilation sheet ST is cooled by the striking air (S3-2 and S3-5 in Fig. 12)

Alternatively, the comparator CTc may output a drive signal for operating the blower BR as a weak wind when the sheet measurement temperature (for example, 20 degrees) is higher than a preset weak wind reference temperature (for example, 18 degrees) . At this time, the comparator CTc operates the blower BR as a weak wind only when the sheet measuring temperature is lower than the above-described reference air temperature of the parasitic wind and is higher than the reference value of the weak wind. Therefore, the ventilation sheet ST is cooled by the weak wind (S3-2 and S3-6 in Fig. 12)

7, when the magnetic force is generated in the coil 64b provided in the case 50, the magnet 92 generates an attractive force or a repulsive force. At this time, the substrate 70 generates electric power by supplying electric power to the coil 64b through the driving element 70a.

The impeller 91 is rotated together with the rotating shaft 61 supported by the bearing B in a state where the impeller 91 is fixed to the rotating shaft 61 by the attraction force or the repulsive force of the magnet 92. The impeller 91 rotates to suck air through the suction port 50a of the case 50 and discharge the air through the discharge port 50b of the case 50 as shown in FIG.

7, since the Hall element 70b and the driving element 70a are mounted on the lower portion of the substrate 70 opposite to the impeller 91, 70b and the driving element 70a from the air by the impeller 91. Therefore, the substrate 70 can prevent the hall element 70b and the driving element 70a from generating noise while being in contact with air.

In addition, since the substrate 70 is formed of a PCB, the manufacturing cost of the substrate 70 can be reduced.

6, since the key 63a of the insulating pipe 63 is inserted into the key groove 70d of the substrate 70, And the key 63a is pushed outward by the bearing housing 62 or the boss of the case 50 to be press-fitted into the insulation 63, It is possible to completely prevent the substrate 70 from flowing right and left due to the elimination of the air gap while being pressed into the key groove 70d and to precisely fix the substrate 70 to a predetermined position.

Also, since the heat sink 41 dissipates the heat of the substrate 70, the heat of the substrate 70 can be dissipated even if the substrate 70 is made of PCB.

5 and 7, the heat dissipation plate 41 can be extended substantially to the heat dissipation area, and the heat dissipation plate 41 can be electrically connected to the Hall element 70b and the driving element 70a, the heat of the substrate 70 can be easily recovered.

7, since the heat radiating plate 41 is extended to the discharge port 50b of the case 50, the heat can be cooled using the air discharged through the discharge port 50b.

7, since the heat dissipation fin 42 is formed on the heat dissipation plate 41 as shown in FIG. 7, the heat of the substrate 70 can be easily cooled, and the heat dissipation fin 42 can have a cross- It is possible to disperse the air discharged through the discharge port 50b to prevent a dead zone from being formed.

Since the hole element 70b and the driving element 70a are seated on the groove sheet G of the case 50 so that the overall height of the case 50 can be reduced, Can be reduced.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the present invention and are not intended to limit the scope of the present invention. Change, partial omission, or supplement). In addition, the above-described embodiments may combine some or many of the features with each other. Therefore, the structure and configuration of each component shown in the embodiments of the present invention can be implemented by modifications or combinations, and it goes without saying that modifications and combinations of these structures and configurations fall within the scope of the appended claims of the present invention.

ST: Ventilation sheet BR: Blower
DT: Ventilation duct T1: Seat temperature sensor
T2: Room temperature sensor CT: Controller
40; A radiation member 41; Heat sink
42; A radiating fin 50; case
50a; Suction port 50b; Outlet
60; A stator 61; Rotating shaft
62; Bearing housing 63; Paraphrase
63a; Key 64; Electromagnet
64a; Core 64b; coil
70; Substrate 70a; Driving element
70b; Hall element 70c; Insert ball
70d; A key groove 90; Rotor
91; Impeller 92; Magnet

Claims (13)

A vehicle seat air conditioning system for supplying air to a seat or a backrest of a ventilation sheet installed in a vehicle,
A ventilation duct for guiding air to the ventilation sheet;
A blower for supplying air to the ventilation duct;
A sheet temperature sensor installed on the ventilation sheet for measuring the temperature of the ventilation sheet; And
And a controller for driving the blower by applying a driving signal to the blower based on a sheet temperature measured by the sheet temperature sensor,
The blower,
An airtight case formed with a suction port for sucking air in a central portion thereof and having a discharge port communicating with an inner space for discharging air;
A rotation shaft installed vertically inside the case to rotate the rotation shaft;
A hollow bearing housing provided on an outer periphery of the rotary shaft and having a bearing for supporting the rotary shaft fixed;
An electromagnet for providing a magnetic force outside the bearing housing;
An electromagnet installed between the electromagnet and the bearing housing to insulate the electromagnet;
An impeller fixed to the rotating shaft and rotating;
A magnet installed on the impeller and rotating the impeller to generate a force or a repulsive force by the electromagnet; And
A Hall element installed horizontally below the impeller and formed with an insertion hole into which the bearing housing or the yoke is inserted, a Hall element for sensing the position of the electromagnet or the magnet, ≪ / RTI >
Wherein the substrate is mounted on the lower surface of the hole element and the driving element and is disposed on the opposite side of the impeller,
And a heat sink attached to the inner surface of the case to receive the heat generated from the substrate or the driving element of the substrate to dissipate heat,
Wherein the heat sink is formed in a strip shape and is attached from a lower portion of the substrate to the discharge port of the case,
The heat-
And a radiating fin formed to be bent in a zigzag shape at a portion where the discharge port is located to enlarge the surface area,
The heat-
And a plurality of the discharge ports are formed along the cross-sectional area of the discharge ports to disperse the air discharged through the discharge ports.
Wherein:
Wherein a key groove is formed on an outer periphery of the insertion hole, and the key top is key-engaged with the key groove to fix the substrate in the case. delete delete The electronic apparatus according to claim 1,
Further comprising: a grooved sheet facing the hollow member of the substrate or the driving element, the grooved sheet being formed in a groove shape to receive the hollow member or the driving element. 2. The apparatus of claim 1,
A receiving unit for receiving the measured temperature of the seat measured from the seat temperature sensor or receiving a ventilation switch operation signal or a start confirmation signal by starting the vehicle through an electronic device installed in the vehicle;
A comparing unit comparing the sheet measurement temperature received by the receiving unit with a predetermined blower driving temperature to apply a driving signal to the blower; And
And a control unit for controlling operation of the comparison unit and the reception unit. 6. The apparatus according to claim 5,
And a drive signal for driving the air volume of the blower in a multi-stage is controlled by controlling the drive of the blower at a speed corresponding to a sheet measurement temperature received from the seat temperature controller. The method according to claim 1,
And an indoor temperature sensor installed in the ventilating seat or the inside of the vehicle to provide an indoor measurement temperature to the controller,
The controller comprising:
Wherein a drive signal is applied to the blower based on an indoor measurement temperature of the indoor temperature sensor and a seat measurement temperature of the seat temperature sensor. The method according to claim 1,
Further comprising a timer for counting the operating time of the seat temperature sensor and providing the counted time to the controller,
The controller comprising:
Wherein the driving signal is applied to the blower based on a sheet temperature of the sheet temperature sensor and a temperature of the seat in accordance with the counting time of the timer. delete delete A control method for a vehicular seat air-conditioning apparatus for operating a blower installed in a vehicle to supply air to a surface of a ventilation sheet through a ventilation duct provided in a ventilation sheet of the vehicle,
Confirming the operation of the ventilation mode for driving the blower and driving the seat temperature sensor installed on the seat;
A sheet temperature measuring step of measuring the temperature of the sheet through the sheet temperature sensor; And
And a blower drive step of driving the blower by applying a drive signal to the blower according to a comparison value by comparing the sheet measurement temperature of the sheet temperature sensor and a predetermined blower drive temperature,
Wherein the blower driving step comprises:
A drive signal is applied to the blower in accordance with the comparison value calculated by comparing the sheet measurement temperature and the reference temperature of the sheet set at the blower drive temperature, or the sheet temperature measured by the sheet temperature sensor in real time And a drive signal is applied to the blower in accordance with the comparison value calculated by comparing the calculated sheet change temperature and the reference change temperature set at the blower drive temperature or the sheet temperature measured by the sheet temperature sensor and the temperature And a drive signal is applied to the blower in accordance with the comparison value calculated by comparing the indoor measurement temperature of the temperature sensor,
Wherein the blower driving step comprises:
A first step of determining whether the sheet temperature measured by the sheet temperature sensor is greater than a predetermined sheet reference temperature (reference temperature of the sheet), and applying a driving signal to the blower only when the measured temperature is greater than a predetermined reference temperature;
A second step of calculating the sheet change temperature by comparing the sheet measurement temperature for a predetermined time when the sheet measurement temperature is lower than the sheet reference temperature in the first step;
Determining whether the sheet change temperature calculated in the second step is greater than a predetermined reference change temperature, and applying a drive signal to the blower only when it is determined that the sheet change temperature is greater than a predetermined reference change temperature;
A fourth step of calculating a temperature difference by comparing the seat measurement temperature and the indoor measurement temperature when the seat change temperature is lower than the reference change temperature in the third step; And
And a fifth step of determining whether the temperature difference calculated in the fourth step is greater than a temperature difference reference temperature set at the blower driving temperature, and applying a driving signal to the blower only when the temperature difference is greater than the reference temperature. delete delete

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