KR20050018535A - heating apparatus for vehicle - Google Patents

Abstract

PURPOSE: An auxiliary heating apparatus for a vehicle is provided to extend the life span by increasing the indoor temperature of the vehicle room before heating the engine in the winter with a PTC(positive temperature coefficient thermistor), and to exchange heat efficiently by enlarging the radiating area. CONSTITUTION: An auxiliary heating apparatus of a vehicle comprises a heating unit(110) having an aluminum front panel, a PTC contacted to the front panel, a first electrode plate contacted to the PTC, a frame having a containing groove for storing the first electrode plate, the front panel and the PTC and an insulation plate inserted between the first electrode plate and the frame, plural radiating plates(120) having insertion holes for inserting the heating unit, a second electrode plate(130) fixed to the lower part of the radiating plate, and a base(140) having electrode insertion grooves(141) corresponding to the first electrode plate of the heating unit and the second electrode plate.

Description

Auxiliary heating device for automobiles

The present invention can install a heating device using a PTC element on the air movement path of the automotive air conditioning system can supply the warm air to the interior of the car at the same time as the power supply, so the auxiliary heating device for the car does not have to wait until the engine overheats It is about.

In general, an automobile is provided with an air conditioner for heating or cooling an interior.

1 and 2 are diagrams illustrating a ventilation system and a ventilation path for evenly transporting cold air and warm air to each part of a vehicle. As shown in the drawing, cold air generated in an evaporator of an air conditioner, or warm air generated in an engine is shown in an arrow direction. It is transferred to cool or heat each part of the vehicle interior.

In other words, in the case of cooling to lower the temperature of the room such as summer, the air conditioner is operated to discharge cold air, and in the case of heating, the temperature of the room should be increased, and in the case of heating, the coolant heated by circulating the inside of the engine to prevent overheating of the engine is blown. Heat exchange with the outside air supplied to the room to supply the warmth through the discharge holes are arranged throughout the vehicle.

Heat generated from the engine is generated as fuel is burned in the cylinder, and the temperature of the combustion gas generated at this time is about 2000 ° C to 2500 ° C, which damages components constituting the engine. The temperature of the engine is maintained at approximately 80 ° C to 90 ° C by the circulation of the temperature, that is, the cooling water.

Although it is preferable to efficiently heat the room using the coolant heat-exchanged with the engine as described above, it is possible to heat the interior of the vehicle by using the heated coolant only after the time until the engine is overheated after the initial start-up.

For this reason, in winter, the engine is idling for a long time before driving to heat immediately upon boarding, which causes inconvenience due to environmental pollution, fuel consumption, and vehicle noise.

Therefore, as a proposed solution, an auxiliary heater system is proposed in which warm air is formed in an auxiliary heater made of a hot wire coil and blown into the room until the cooling water is heated. However, the auxiliary heater method using the heating coil has a problem that the heating effect of the heating coil is large, the heating effect is large, but the risk of fire is high, the life of the heating wire is short, and the parts of the heating coil must be frequently repaired or replaced.

The present invention has been made in order to overcome the above-mentioned conventional problems, it is possible to supply the warm air to the interior of the car before the engine of the winter car is heated, the risk of fire, long life, constant resistance that can be used semi-permanently The present invention provides an auxiliary heating device for automobiles using a positive temperature coefficient thermistor (PTC) having a temperature coefficient.

In addition, the present invention has an object to provide an auxiliary heating device for an automobile having an appropriate number of heating parts and fixing a plurality of heat sinks therein to provide an auxiliary heating device for an automobile having excellent heat exchange efficiency.

The auxiliary heating device for a vehicle of the present invention for achieving the above object is installed on the air movement path of the automobile air conditioning system together with an evaporator of an air conditioner and a heat exchange unit of a heater using a coolant of a heated engine. An auxiliary heating apparatus for supplying warm air to a vehicle interior until it is heated, comprising: a front plate body made of aluminum, a PTC element interviewed with the front plate body, a first electrode plate interviewed with the PTC element, and the front plate body And a heating unit including a frame including a receiving device for accommodating a PTC element and an electrode plate, and an insulating plate interposed between the electrode plate and the frame; and a plurality of heat dissipation plates forming an insertion hole into which the heating unit is inserted. And a fixing base having a second electrode plate fixed to one side of the lowermost end of the heat sink, and an electrode plate insertion groove formed therein. It is achieved by providing auxiliary heating for a vehicle.

The heating unit of the auxiliary heating device for a vehicle of the present invention preferably includes a guide plate having an insertion hole corresponding to the PTC element to fix the position of the PTC element interposed between the front plate body and the terminal.

It is preferable to form fixing pieces on both sides of the lower end of the frame of the heating unit of the auxiliary heating device for a vehicle of the present invention, and to form fixing grooves corresponding to the fixing pieces of the frame on the base.

According to the present invention, a fastening hole is formed in the front plate body, the PTC element, the insulation plate, and the frame of the heating part of the auxiliary heating device for the automobile, and the fastening holes are fastened to each member by fastening members such as nuts and bolts. It is preferable to insert the bolt insulation.

The heat dissipation plate of the auxiliary heating device for a vehicle of the present invention forms a plurality of insertion holes corresponding to a plurality of heating portions arranged, and forms a bent portion that is bent upward along the edge of the insertion hole, and forms a gap maintaining jaw at both ends. It is desirable to.

The heat dissipation plate of the auxiliary heating device for a vehicle of the present invention forms one insertion hole in the center so as to be inserted into each of the plurality of heating portions, and forms a bent portion bent upward along the edge of the insertion hole and maintains gaps at both ends. It is desirable to bend the jaw.

The heat dissipation plate of the auxiliary heating device for a vehicle of the present invention preferably forms a bent portion that is bent upward along the edge of the insertion hole, and obliquely forms a louver protruding from the plate shape.

The heat dissipation plate of the auxiliary heating device for a vehicle of the present invention is fixed in multiple stages to a heating unit arranged in multiple stages. The louvers of the heat dissipation plate are provided with louvers of the heat dissipation plate arranged in the hole means and the louvers of the heat dissipation plate arranged in the mating means in opposite directions. It is preferable to form staggeredly.

Preferably, the bent portion of the insertion hole of the auxiliary heating device for a vehicle is formed to be bent at an angle of 85 degrees from the plate surface.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the auxiliary heating device for a vehicle of the present invention, Figure 3a is an exploded perspective view of the heating portion of the auxiliary heating device for cars of the present invention, Figure 3b is an exploded perspective view of the heat sink of the auxiliary heating device for cars of the present invention.

Auxiliary heating device for a vehicle of the present invention shown in the figure is composed of a heating unit 110, a heat sink 120 and the base 140.

The heating unit 110 includes a front plate body 111 made of aluminum, a PTC element 112 that is in contact with the front plate body 111, and a first potential for supplying a positive potential by interviewing the PTC element 112. Frame 115 having an electrode plate 113, a receiving groove 115a for accommodating the front plate body 111, the PTC element 112, and the electrode plate 113, and the first electrode plate 113. And an insulating plate 114 interposed between the frame 115 and the frame 115. The guide plate 116 is provided with an insertion hole 116a corresponding to the PTC element 112 to fix the position of the PTC element 112 interposed between the front plate body 111 and the first electrode plate 113. Is provided, a plurality of fixing projections (115b) is formed on the front of the frame 115, and the fixing piece (115c) is formed on both sides of the bottom.

On the other hand, the PTC element 112 inserted into the insertion hole 116a of the guide plate 116 and placed between the front plate body 111 and the first electrode plate 113 as described above, the resistance value increases as the temperature increases. This is a static thermistor with a constant resistance temperature coefficient made by mixing about 0.1% of tin and cerium in a barium titanate-based semiconductor, and when the resistance value reacts with the ambient temperature, the calorific value increases and the room temperature increases. It is an economical and efficient sensor-type heating element that generates less heat, and has automatic protection from overheating and overvoltage along with automatic temperature control. In addition, there is a characteristic that does not generate an oxidizing gas which causes air pollution because it does not cause oxidation reaction with oxygen in the air.

The heat dissipation plate 120 is formed on the plate surface a plurality of insertion holes 121 corresponding to the plurality of the heating unit 110 is effectively disposed according to the heating capacity, the upper portion along the edge of the insertion hole 121 By forming a bent portion 122 is bent at an angle of 85 ° from the plate surface, and the gap retaining jaw 123 is formed at both ends to be laminated on the heating portion 110 in multiple stages.

On the other hand, the second electrode plate 130 for supplying a negative potential is fixed to the lowermost side of the heat sink (120).

The base 140 has a plurality of electrode plate insertion grooves 141 through which the first electrode plate 113 and the second electrode plate 130 are inserted, respectively, in the vertical direction of the plate surface, and the first electrode plate ( Both sides of the insertion groove 141 into which the 113 is inserted form a fixing groove 142 corresponding to the fixing piece 115c of the frame 115 of the heating unit 110.

Hereinafter, the operation of the auxiliary heating device for a vehicle of the present invention configured as described above will be described.

5 is a cross-sectional view of the coupling of the auxiliary heating device for a vehicle of the present invention.

As shown in the drawing, the heating unit 110 includes a front plate body 111 having excellent thermal conductivity of aluminum, a guide plate 116 into which the PTC element 112 is inserted into the insertion groove 116a, and a positive potential. The first electrode plate 113 and the insulating plate 114 having the same are sequentially accommodated in the receiving groove 115a of the frame 115 and fixed to the frame by the fixing protrusion 115b of the frame 115. Meanwhile, the fixing piece 115c formed under the frame 115 of the heating part 110 is inserted into the fixing groove 142 of the base 140, and the insertion end is bent so that the heating part 110 is the base ( It is firmly fixed to the 140, and the lower end of the first electrode plate 113 of the heating unit 110 is inserted into the electrode plate insertion groove 141 of the base 140. On the other hand, the number of the heating unit 110 may be effectively changed in number depending on the heating capacity of the vehicle.

As described above, the heat sink 120 having a plurality of insertion holes 121 corresponding to the heating part 110 fixed to the base 140 is inserted and fixed in multiple stages. In this case, the heat sink 120 is formed along the edge of the insertion hole 121. The bent portion 121 is formed to be bent at an angle of about 85 ° upward from the surface of the plate to improve the contact between the heating portion 110 and the heat sink 120, and at the same time, the end portion thereof is formed on the sidewall of the heating portion 110. To prevent jamming.

In addition, the plurality of heat dissipation plates 120 are spaced apart by a predetermined interval on the heating unit 110 by the interval maintaining jaw 123 formed at both ends of the heat dissipation plate 120. On the other hand, the gap holding jaw 123 has an effect of expanding the heat dissipation area of the heat sink 120 as well as the gap holding function.

A lower end of the heat sink 120 is inserted into an electrode plate insertion groove 141 of the base 130 to fix an upper end of the second electrode plate 130 to receive a negative current.

In the auxiliary heating device for automobiles of the present invention configured as described above, the first electrode plate 113 and the second electrode plate 130 are fixed to the base 140 to which the first electrode plate 113 is connected. A positive current is supplied to the 113 and a negative current is supplied to the second electrode plate 130. The first electrode plate 113 having the positive potential is in contact with the rear surface of the PTC element 112, and the front plate body made of aluminum through the heat sink 120 and the frame 115 contacting the second electrode plate 130 ( 111 has a negative potential and contacts the front surface of the PTC element 112. At this time, the first electrode plate 113 and the frame (by the heat transfer plate 114 interposed on the rear surface of the first electrode plate 113). 115 is insulated.

In this way, the positive potential is supplied to the rear surface of the PTC element 112 and the negative potential is supplied to the front surface so that heat is generated from the PTC element 112 and the frame 115 and the heat dissipation plate are formed through the front plate body 111 made of aluminum having high thermal conductivity. 120 is heated and the air supplied to the room is heated while passing through the heat sink 120 of the auxiliary heating device 100 to supply the warm air to the vehicle interior.

This action is shown in the schematic configuration of the air conditioner of the vehicle to which the auxiliary heating device for automobiles of the accompanying drawings, the present invention, the auxiliary heating device 100 for cars of the present invention is a blower fan (F) and the evaporator of the air conditioner ( E) and the heat exchange unit (H) of the heater using the heat of the engine is installed on the moving passage of the air, until the coolant of the engine is heated and the heat exchange unit (H) can act as a heater (V) By heating the air supplied to the room, when the temperature in the vehicle room is low, such as in winter, the vehicle can immediately supply warmth through the discharge port O disposed throughout the interior of the vehicle V.

Figure 6 is an exploded perspective view showing another embodiment of the heating unit of the auxiliary heating device for a vehicle of the present invention, Figure 7 is a longitudinal cross-sectional view of the coupled state of FIG.

As shown, the heating unit 160 according to another embodiment includes a plurality of PTC elements 162, a first electrode plate 163, an insulating plate 164, and a frame 165 vertically disposed with an aluminum front plate 161. And fastening holes 161a, 162a, 163a, 164a, and 165a, respectively, and fastening the respective members with fastening members 168 such as nuts and bolts through the fastening holes 161a, 162a, 163a, 164a, and 165a. However, the bolt insulator 167 is inserted into the through hole 165a on the side of the frame 165 so that the frame 165 is insulated from the first electrode plate 163.

Here, the fastening through holes (161a, 162a, 163a, 164a, 165a) is formed between the PTC elements 162 are arranged in a plurality of vertical directions do not require a separate member for fixing the PTC element 162. Will not.

The heating unit 160 is also supplied with a positive current to the first electrode plate 163 to be in contact with the rear surface of the PTC element 162, the frame 165 is a second electrode plate (not shown) and the heat sink (not shown) The PTC element 162 generates heat by being supplied with a negative current through the A) and being in contact with the front surface of the PTC element 162 through the front plate body 161. This heat is made of aluminum and is transmitted to the heat sink (not shown) through the frame 165 through the front plate body 161 having excellent thermal conductivity. Meanwhile, since the insulating plate 164 is interposed between the frame 165 and the first electrode plate 163, the frame 165 and the first electrode plate 9163 are insulated from each other.

Figure 8 is a perspective view showing another embodiment of the heat sink of the auxiliary heating device for a vehicle of the present invention, Figure 9 is a longitudinal cross-sectional view of FIG.

As shown in the heat dissipation plate 170 of the other embodiment, one insertion hole 171 is formed in the center of the plate surface so as to be inserted into each of the plurality of heating parts 110 are effectively disposed according to the heating capacity, A bent portion 172 bent to be tilted 85 ° from the plate surface toward the upper side along the edge of the insertion hole 171 is formed, and improves the contact between the heating portion 110 and the heat sink 170 and at the same time prevents separation. Then, the gap holding jaw 173 is bent at both ends and stacked in multiple stages on the heating unit 110. As described above, in another embodiment of the heat dissipation plate, the heat dissipation plate 170 is independently inserted into the heating unit 110 to expand the heat dissipation area, thereby increasing heat exchange efficiency.

FIG. 10 is a perspective view showing still another embodiment of a heat sink of the auxiliary heating device for a vehicle according to the present invention. FIG. 11A is a longitudinal cross-sectional view of FIG. 10, and FIG. 11B is a plan view of FIG. 10.

In another embodiment, the heat dissipation plate 180 is formed with an insertion hole 181 corresponding to the heating part 110 formed on the plate surface, and is directed upward from the plate surface along the edge of the insertion hole 181. By forming a bent portion 182 bent inclined to 85 ° to improve the contact of the heat sink 180 on the side wall of the heating unit 110 and at the same time prevents from being inserted into the heating unit 110 and then separated from the insertion side. .

In addition, a plurality of louvers 183 protruding from the plate on both sides of the insertion hole 181 is formed obliquely to increase the heat dissipation area of the heat dissipation plate 180, and the heat dissipation plate 180 arranged in multiple stages in the heating unit 110. And the louver 183a of the heat sink 180a disposed in the hole means and the louver 183b of the heat sink 180b disposed in the mating means are staggered in opposite directions to each other. Increase the resistance of the to improve the heat dissipation efficiency.

As described above, the auxiliary heating device for a vehicle of the present invention is capable of supplying warm air to a vehicle interior before the engine of the winter car is heated, and has a constant resistance temperature coefficient that can be used semi-permanently due to a low risk of fire and a long service life. By performing a rapid heating function using a PTC device it is possible to increase the temperature of the car interior before the engine is heated.

In addition, the auxiliary heating device for automobiles according to the present invention firmly secures a plurality of heat sinks to a heating portion that is effectively arranged in large numbers according to the heating capacity of the car, thereby preventing them from being randomly detached, and improving heat dissipation area and heat dissipation effect of the heat sink. Heat exchange efficiency is also excellent effect.

1 is a schematic configuration diagram of a conventional vehicle air conditioner,

Figure 2 is a perspective view of the auxiliary heating device for cars of the present invention,

Figure 3a is an exploded perspective view of the heating portion of the auxiliary heating device for a vehicle of the present invention,

Figure 3b is an exploded perspective view of the heat sink of the auxiliary heating device for cars of the present invention,

2 is a schematic configuration diagram of an air conditioner of a vehicle to which the auxiliary heating device for a vehicle of the present invention is applied;

4 is a cross-sectional view of the auxiliary heating device for automobiles of the present invention;

5 is a state of use of the auxiliary heating device for cars of the present invention,

6 is a perspective view showing another embodiment of the heating unit of the auxiliary heating device for a vehicle according to the present invention;

7 is a longitudinal sectional view showing a state of use of FIG. 6;

8 is a perspective view showing another embodiment of the heat sink of the auxiliary heating device for a vehicle according to the present invention;

9 is a longitudinal sectional view showing a state of use of FIG. 8;

10 is a perspective view showing another embodiment of a heat sink of the auxiliary heating device for a vehicle according to the present invention;

FIG. 11A is a sectional view of FIG. 10, and FIG. 11B is a plan view of FIG. 10.

※ Explanation of code for main part of drawing

110: heating section 111: front plate 112: PTC element

113: first electrode plate 114: insulating plate 115: frame

115a: receiving groove 115b: fixing protrusion 115c: fixing piece

116: information board 116a: insertion hole 120: heat sink

121: insertion hole 122: bending portion 123: gap holding jaw

130: second electrode plate 140: base 141: insertion groove

142: fixing groove 160: heating portion 161: front plate body

162: PTC element 163: first electrode plate 164: insulating plate

165: frame 167: bolt insulation 168: fastening member

170: heat sink 161: insertion hole 172: bent portion

173: gap holding jaw 180: heat sink 181: insertion hole

182: Bend 183: Louver

Claims (9)

It is installed in the air moving passage of the automobile air conditioning system together with the evaporator of the air conditioner and the heat exchange unit of the heater using the coolant of the heated engine, and the auxiliary heating device to supply warm air to the interior of the vehicle until the engine coolant is heated. In The front plate body 111 made of aluminum, the PTC element 112 to be in contact with the front plate body 111, the first electrode plate 113 to be in contact with the PTC element 112, and the front plate body 111. And a frame 115 having a receiving groove 115a for accommodating the PTC element 112 and the first electrode plate 113, and an insulating plate interposed between the first electrode plate 113 and the frame 115 ( A heating part (110,160) consisting of 114; A plurality of heat sinks 120, 170, and 180 having an insertion hole 121 into which the heating unit 110 is inserted; A second electrode plate 130 fixed to the lowermost one side of the heat sink 120, 170, 180, and And a base 140 in which the first and second electrode plates 113 and 110 of the heating unit 110 and 160 are formed, and the electrode plate insertion grooves 141 corresponding to the second electrode plate 130 are formed. Device. The method of claim 1, The heating unit 110 forms an insertion hole 116a corresponding to the PTC element 112 to fix the position of the PTC element 112 interposed between the front plate body 111 and the first electrode plate 113. An auxiliary heating device for a vehicle, characterized in that it comprises a guide plate (116). The method of claim 1, The fixing piece 115c is formed on both sides of the bottom of the frame 115 of the heating part 110, and the fixing groove 142 corresponding to the fixing piece 115c of the frame 115 is formed in the base 140. Automotive auxiliary heating, characterized in that. The method of claim 1, Fastening holes 161a, 162a, 163a, 164a, and 165a in the front plate body 161, the PTC element 162, the first electrode plate 163, the insulating plate 164, and the frame 165 of the heating unit 160, respectively. And fasten each member with the fastening members 168 such as nuts and bolts with the fastening holes 161a, 162a, 163a, 164a, and 165a, and insulate the bolts with the through holes 165a on the frame 165 side. Automotive auxiliary heating device, characterized in that the insertion portion (167). The method of claim 1, The heat dissipation plate 120 forms a plurality of insertion holes 121 corresponding to the heating parts 110 are arranged in a large number, and forms a bent portion 122 bent upward along the edge of the insertion hole 121, Auxiliary heating apparatus for a vehicle, characterized in that the gap retaining jaw 123 is formed at both ends. The method of claim 1, The heat dissipation plate 170 forms one insertion hole 171 at the center so as to be inserted into each of the plurality of heating parts 110, and the bent portion 172 bent upward along the edge of the insertion hole 171. Forming, auxiliary heating device for a vehicle, characterized in that bending the gap maintaining jaw (173) at both ends. The method of claim 1, The heat dissipation plate 180 forms a bent portion 182 that is bent upward along the edge of the insertion hole 181, and forms a plurality of louvers 183 protruding from the plate at an angle. Auxiliary heating system. The method of claim 7, wherein The heat dissipation plate 180 is fixed in multiple stages to the heating unit 110 is arranged in a large number, the louver of the heat dissipation plate 180 is a heat dissipation plate disposed in the mating means and the louver (183a) of the heat dissipation plate 180a disposed in the hole means Auxiliary heating device for a vehicle, characterized in that the louver (183b) of 180b is formed to cross in opposite directions to each other. The method according to any one of claims 5 to 7, The bent part (122, 172, 182) of the insertion hole (121, 171, 181) is an auxiliary heating device for a vehicle, characterized in that bent to form an inclined 85 ° from the plate surface.