KR20190121940A - A heater for vehicles - Google Patents

Abstract

The present invention relates to a vehicle heater, which comprises: a heat source unit; a first heat radiation plate including a first heat generating region in surface contact with one side surface of the heat source unit and a first air flow region in which at least one first through hole is formed; a second heat radiation plate including a second heat generation region in surface contact with the other side surface of the heat source unit, and a second air flow region in which at least one second through hole is formed; and a rod coupling unit having an integrated tab structure protruding toward the second heat radiation plate in a region in which the first heat generating region of the first heat radiation plate and the first through hole are in contact with each other, wherein the other side is coupled to the second heat radiation plate to store the heat source unit therein.

Description

Car Heater {A HEATER FOR VEHICLES}

The present invention relates to a vehicle heater, and more particularly, by simplifying the mechanical coupling configuration of the pair of heat dissipation portion formed in the form of a plate, and the heat source portion interposed therebetween, the vehicle heater can be miniaturized, and the manufacturing efficiency is improved. It is about.

The heating means is used to increase the external temperature, and means using various methods have been proposed, and are also used for various purposes.

In particular, among the heating means provided in the vehicle engine room, the heating means for heating the interior is configured to heat the outside air by heating a heat exchange medium for lowering the temperature of the engine while circulating the heater core.

However, since diesel engines have high heat exchange rates among engines, it takes longer than gasoline engines to heat the heat exchange medium that cools the engine when the vehicle is initially started.

Therefore, the vehicle equipped with a diesel engine in winter has a problem that the heating of the heat exchange medium is delayed after the initial start-up, the initial indoor heating performance is reduced.

In order to solve the above problems, a vehicle air heating heater has been proposed in which the air blown to the indoor side is directly heated by various means.

However, the air-heated heater has the advantage of heating the air directly to increase the heating performance, but in accordance with the trend of miniaturization and high efficiency it occupies as much space as the size of the heater in the situation that it is difficult to secure enough space inside the engine room This can cause the miniaturization.

In particular, in the case of a cartridge heater using a nichrome wire, it is difficult to control the temperature, and if the air is not blown to the heater side, there is a risk of overheating, and an insulation problem may occur due to a high voltage, and there is a risk of fire. There is a problem.

On the other hand, a vehicle air conditioner using a positive temperature coefficient (PTC) heater has been proposed in Japanese Patent Laid-Open No. 2009-255739, a conventional PTC heater is shown in FIG.

In FIG. 1, an air flow direction is indicated by an arrow, and the PTC heater illustrated in FIG. 1 includes a heat source part 11 formed of a PTC element and a heat dissipation part for effectively dissipating heat while contacting the heat source part 11. And a housing 20 which surrounds and protects the terminal portion, the heat source portion 11 and the heat dissipation portion 12.

Generally, the heat dissipation fins of FIG. 1 are called corrugated fins, and have an advantage of increasing a heat dissipation area in a zigzag shape, but have a disadvantage in that the manufacturing and assembly process is complicated and the volume and weight are large.

In addition, the conventional PTC heater may have some differences in the detailed configuration, but as the heat source portion is formed in parallel with the air flow direction, the formation area of the heat source portion directly affects the heating performance, and thus the thickness of the PTC heater (air There is a limit to reducing the direction of flow.

On the other hand, the PTC element according to the prior art is typically carried in a separate rod assembly for accommodating the PTC element is coupled by other heat dissipation means and adhesives. However, when gaps or voids are generated between the heat dissipation means and the rod assembly, and thus are not in close contact with each other, there is a problem that the heat exchange efficiency is lowered. In addition, variations in heat dissipation performance may occur depending on the application amount of the bonding means.

In addition, the repetition of the adhesive force occurs when the heat load is repeated, which may cause not only durability but also deterioration of performance and defective products after a certain time of operation.

In addition, when the heat dissipation performance is deteriorated, an electrical problem may occur, and since a plurality of heat dissipation fins must be combined by an adhesive means, the working environment is not good, the assembly process is cumbersome, and the number of parts and weight is increased and the cost is increased. It becomes a factor.

Japanese Patent Publication No. 2009-255739 (Invention: Vehicle air conditioner, Publication Date: 2009.11.05)

The present invention is to solve the above problems, an object of the present invention, the first heat dissipation plate and the second heat dissipation plate in the form of a plate which is located perpendicular to the air flow direction, and the heat dissipation unit using a heat source interposed therebetween By forming, it is easy to manufacture and reduce the thickness, while minimizing the number of parts and the coupling structure to provide a vehicle heater with improved manufacturability.

Vehicle heater according to an embodiment of the present invention heat source unit for generating heat; A first heat radiation plate including a first heat generating region in surface contact with one side surface of the heat source unit and a first air flow region in which at least one first through hole is formed; A second heat radiation plate including a second heat generation region in surface contact with the other side surface of the heat source portion, and a second air flow region in which at least one second through hole is formed; And an integrated tab structure protruding toward the second heat sink in a region where the first heat generating region and the first through hole of the first heat sink are in contact with each other, the other side of which is coupled to the second heat sink to accommodate a heat source unit therein. part; It may be made, including.

In this case, the rod coupling portion may be a cut and bent region when the first through-hole is in contact with the first heat generating region, and the other end of the rod coupling portion is in the second through hole in contact with the second heat generating region. It may be inserted and coupled to the second heat sink.

In addition, the rod coupling portion inserted into the second through hole may be bent by the pressure applied in the width direction.

In addition, the first through hole comprises a 1-1 through hole formed in a region in contact with the first heat generating region and a 1-2 through hole formed in the remaining region, wherein the second through hole, the second 2-2 through-hole formed in the area in contact with the second heat generating region, and 2-2 through-hole formed in the remaining area.

In another embodiment, the first louver tab may extend in the height direction from the edge of the first through hole, and the second louver tab may extend in the height direction from the edge of the second through hole. have.

In this case, the first louver tab and the second louver tab may be cut and bent regions when the first through second holes and the second through second holes are manufactured.

In addition, the sizes of the first-first through holes and the first through-holes and the second through-holes and the second through-holes may be formed differently from each other.

In addition, the second heat generating region 301 of the second heat dissipation plate 300 has a concave side that is in contact with the heat source 100, and the other end of the rod coupling part 400 has a concave second side. It may be bent toward the heat generating region 301.

In addition, the rod coupling portion 400 is formed on both sides in the width direction based on the heat source portion 100, the rod coupling portion 400 may be formed in a plurality of spaced apart from each other along the longitudinal direction.

On the other hand, the heat source unit PTC element; An electrode plate in electrical contact with the PTC element; An insulating guide member for insulating the PTC element and the electrode plate from the rod coupling portion; And an insulating layer interposed between the electrode plate and the first heat dissipation plate. It may include.

In this case, the insulating guide member may be formed with at least one opening on which the PTC element is mounted, and an electrode plate accommodating portion for accommodating the electrode plate on the lower surface thereof.

In addition, the heat source unit 100 that generates heat by the power source; A first heat dissipation plate 200 which receives heat generated by the heat source unit 100 and heat-exchanges with external air, and includes a rod coupling part 400 formed with at least one protrusion; The heat source unit 100 is disposed at a position symmetrical with the first heat sink 200, receives heat generated from the heat source unit 100, exchanges heat with outside air, and the rod coupling unit 400 is inserted. And a second heat dissipation plate 300 having a through hole formed therein, wherein the rod coupling part 400 is inserted into the through hole, and then coked to one side to couple the first and second heat dissipation plates 200 and 300. It provides a vehicle heater, characterized in that.

In addition, the rod coupling portion 400 is formed in a plurality of symmetrical on both sides of the heat source portion 100, it characterized in that the contact with the side of the heat source portion 100 is fixed.

Accordingly, the vehicle heater according to the embodiment of the present invention is easy to manufacture by forming a heat dissipation unit using the first heat sink and the second heat sink in the form of a plate positioned perpendicular to the air flow direction, and the heat source interposed therebetween. In addition, the manufacturing efficiency is improved by minimizing the number of parts and the coupling structure while reducing the thickness.

Particularly, the vehicle heater of the present invention uses the cut and bent tabs during the manufacture of the first through hole of the first heat dissipation plate as a rod coupling part which is in surface contact with the side of the heat source and is coupled to the second heat dissipation plate, thereby providing It is possible to save weight and cost because no separate parts are needed for the coupling between the two heat sinks and the heat source part.

In addition, the vehicle heater of the present invention can improve the manufacturability through a mechanical coupling method that is easy to assemble.

In addition, the present invention can minimize the use of the adhesive means as the first heat sink, the second heat sink and the heat source is mechanically coupled, the durability does not significantly decrease even when the heat load is repeated, there is a performance deviation caused by the uneven amount of coating means It can be minimized.

In addition, the present invention has the function and effect of the through-holes formed in the first heat sink and the second heat sink as a heat radiation fin, and can be manufactured in various shapes and patterns, it is possible to be applied as an optimized vehicle heater, compact with a simple structure The advantage is that one package can be provided.

1 is a view showing a conventional PTC heater.
2 and 3 are an assembled perspective view and an exploded perspective view of a heater for a vehicle according to an embodiment of the present invention.
4 is a sectional view taken along the AA 'direction of a vehicle heater according to an embodiment of the present invention.
Figure 5 is an exploded cross-sectional view showing a state before assembly of a vehicle heater according to an embodiment of the present invention.
Figure 6 is a cross-sectional view showing a state before the upper end of the rod coupling portion is assembled after the assembly of the heater for a vehicle according to the present invention.
7 to 9 is an assembled perspective view, an exploded perspective view and a side view of a heater for a vehicle according to another embodiment of the present invention.

Hereinafter, a vehicle heater according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are an assembled perspective view and an exploded perspective view of a vehicle heater according to an embodiment of the present invention, Figure 4 is a cross-sectional view AA 'of the vehicle heater according to an embodiment of the present invention.

As shown in the drawing, a vehicle heater according to the present invention is a means for heat-exchanging with a flowing fluid (air), and is largely a heat source part 100, a first heat sink 200, a second heat sink 300, and a rod coupling part 400. It is formed, including.

The heat source part 100 is a means for generating heat, and may be variously formed. For example, the heat source unit 100 may have a high heat generating performance and may be a PTC heater using a positive temperature coefficient (PTC) device that is easy to manufacture. The heat source unit 100 includes a PTC element 110, an electrode plate 120 in electrical contact with the PTC element 110, and a rod of the PTC element 110 and the electrode plate 120. It may be formed including an insulating guide member 130 to insulate the coupling portion 400, and an insulating layer 140 interposed between the electrode plate 120 and the first heat sink 200. In this case, the insulating guide member 130 may have an opening 131 corresponding to the size of the PTC device 110, so that the PTC device 110 may be seated on an upper surface of the insulating guide member 130. The electrode plate 120 accommodating part 132 may be formed to accommodate the plate 120. In addition, the openings 131 are formed to be spaced apart at regular intervals in the longitudinal direction by the number corresponding to the number of the PTC element 110. In addition, the insulating guide member 130 and the insulating layer 140 prevents electrical contact between the electrode plate 120 serving as the anode terminal and the rod of the heat source part 100 to prevent short. In addition, the insulating guide member 130 and the insulating layer 140 is preferably made of a material having a strong heat resistance and excellent thermal conductivity.

The first heat dissipation plate 200 is formed in a plate shape, and includes a first heat generating region 201 which is in surface contact with one side surface of the heat source part 100 and a first air flow region in which at least one first through hole 210 is formed. 202.

In addition, the second heat dissipation plate 300 is formed in the shape of a plate having a size corresponding to the first heat dissipation plate 200, and is disposed in parallel with the first heat dissipation plate 200 in the height direction, and the other side surface of the heat source part 100. And a second air flow region 302 having a second heat generating region 301 and at least one second through hole 310 in surface contact.

In particular, the vehicle heater 1000 of the present invention is formed by including a rod coupling portion 400 formed integrally with the first heat sink 200, the first heat sink 200, the second heat sink without a separate coupling member 300 and the heat source unit 100 may be coupled to each other and fixed.

The rod coupling part 400 is formed as an integral tab structure protruding toward the second heat dissipation plate 300 in a region where the first heat generating region 201 and the first through hole 210 of the first heat dissipation plate 200 are in contact with each other. The upper end is coupled to the second heat sink 300.

In this case, the vehicle heater 1000 of the present invention is spaced apart from each other by a width corresponding to the width of the heat source unit 100 on both sides of the first heat generating region 201 in the width direction of the first heat dissipation plate 200. ) Is formed, and the heat source part 100 is seated between the rod coupling parts 400 protruding toward the second heat dissipation plate 300. Therefore, the width direction both sides and the height of the heat source part 100 are defined by the first heat generating region 201, the rod coupling part 400, and the second heat generating region 301 of the second heat radiating plate 300 of the first heat radiating plate 200. It may be formed in a shape surrounding the four sides in both directions.

At this time, the width direction both sides of the heat source portion 100 is in surface contact with the inner surface of the rod coupling portion (400).

The end of the rod coupling part 400 is inserted into the second through hole 310 formed in contact with the second heat generating region 301 of the second heat dissipation plate 300 and then bent by the pressure applied in the width direction from the upper side. do.

Accordingly, the vehicle heater 1000 of the present invention may be coupled to the first heat dissipation plate 200 and the second heat dissipation plate 300, and the heat source unit 100 interposed therebetween.

And the rod coupling portion 400 is formed on both sides in the width direction on the basis of the heat source portion 100, the rod coupling portion 400 formed on both sides in the width direction are formed in plural, respectively, a plurality of rod coupling portion 400 length It may be formed in a form arranged spaced apart from each other along the direction.

In addition, the second heat generating region 301 of the second heat dissipation plate 300 is formed to be concave downward from the upper surface of the second air flow region 302 in contact with the heat source 100. The other end of the 400 may be bent toward the concave second heat generating region 301. That is, the rod coupling parts 400 formed on both sides in the width direction based on the heat source part 100 have upper ends bent in a direction facing each other, and the bent portion has a second heat generation that is a concave portion of the second heat sink 300. It may be disposed above the region 301. In this case, the bent upper end of the rod coupling part 400 may be formed so as not to protrude upward from the upper surface of the second air flow region 302 of the second heat dissipation plate 300.

And in more detail with respect to the configuration of the rod coupling portion 400, the first heat sink 200 and the second heat sink 300, the first through hole 210 formed in the first heat sink 200 is the first heat generating region The first-first through hole 211 formed in the area in contact with the 201, and the first-second through hole 212 formed in the remaining area, the first-first through hole 211 and the first The -2 through hole 212 may be symmetrically disposed at both sides with respect to the first heat generating region 201.

Similarly, the second through hole 310 formed in the second heat dissipation plate 300 has a second through hole 311 formed in a region contacting the second heat generating region 301 and a second formed through the remaining region. The second through hole 312 and the second through hole 311 and the second through hole 312 may be symmetrically disposed at both sides with respect to the second heat generating region 301.

On the other hand, when the rod coupling portion 400 is manufactured in the first-first through-hole 211 in contact with the first heat generating region 201, except for a part of the surface of the first-first through-hole 211 is cut out The second heat sink 300 is bent to the side is formed.

At this time, it is preferable that the cutout of the first-first through hole 211 serving as the rod coupling part 400 is formed in a square shape rather than oblique or circular so as to vertically protrude toward the second heat dissipation plate 300. In consideration of this, the length of the coupling part 400 may be longer than the thickness of the heat source part 100.

As described above, the upper end of the rod coupling portion 400 is inserted into the 2-1 through-hole 311 in contact with the second heat generating region 301 and then bent and coupled to the 1-1 through-hole 211. And the 2-1 through-hole 311 is preferably formed in a position corresponding to each other, the size does not necessarily have to be the same. In other words, the 2-1 through-hole 311 may be formed to a size that the rod coupling portion 400 can be inserted.

In addition, the 1-1 through hole 211 and the 1-2 through hole 212, the 2-1 through hole 311 and the 2-2 through hole 312 may be formed in the same shape, It may be formed in different forms.

For example, the first-first through hole 211 may be formed in a square shape in consideration of the shape of the rod coupling part 400, while the first-second through hole 212 may be formed in a diagonally cut shape. It may be.

In another embodiment, as shown in FIGS. 7 to 9, the vehicle heater 1000 of the present invention includes a first louver tab extending in a height direction from an edge of the first-second through-hole 212 and a second; It may further include a second louver tab extending in the height direction from the edge of the -2 through hole 312.

In this case, the first louver tab 220 and the second louver tab 320 are manufactured in the same manner as in the manufacturing method of the rod coupling part 400, and manufacturing the first-second through hole 212 and the second-second through hole 312. Incision and bending area. As shown in the drawing, the first louver tab 220 and the second louver tab 320 may be formed in different bending directions from the rod coupling part 400 by varying the cut surface from the 1-1 through-hole 211. have.

As described above, the first louver tab and the second louver tab may be manufactured by a simple method, and by increasing the contact area with air, the overall heat exchange performance of the vehicle heater 1000 may be improved.

Accordingly, the vehicle heater 1000 according to the present invention uses the plate-shaped first heat sink 200 and the second heat sink 300 which are located perpendicular to the air flow direction, and the heat source unit 100 interposed therebetween. By forming the heat dissipation portion, it is easy to manufacture and reduce the thickness, the first heat dissipation plate 200, the second heat dissipation plate 300 and the heat source through the rod coupling portion 400 formed integrally with the first heat dissipation plate 200 ( By the combination of 100), the number of parts and the coupling structure can be minimized to improve the manufacturability.

The present invention is not limited to the above-described embodiments, and the scope of application of the present invention is not limited to those of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made.

1000: Car Heater
100: heat source unit
110: PTC element 120: electrode plate
130: insulation guide member
131: opening 132: electrode plate housing
140: insulation layer
200: first heat sink
201: first heat generating region 202: first air flow region
210: first through hole
211: 1-1 through hole 212: 1-2 through hole
220: first louver tap
300: second heat sink
301: second heat generating zone 302: second air flow zone
310: second through hole
311: 2-1 through hole 312: 2-2 through hole
320: second louver tab
400: rod coupling portion

Claims (14)

A heat source part 100 generating heat by a power source;
A first heat dissipation plate 200 which receives heat generated by the heat source unit 100 and heat-exchanges with external air, and includes a rod coupling part 400 formed with at least one protrusion;
The heat source unit 100 is disposed at a position symmetrical with the first heat sink 200, receives heat generated from the heat source unit 100, exchanges heat with outside air, and the rod coupling unit 400 is inserted. Including a second heat sink 300 is formed through the through hole,
The rod coupling part 400 is inserted into the through hole, and then cocked to one side to combine the first and second heat sinks (200, 300).
The method of claim 1,
The rod coupling part 400 is formed in plural symmetrically on both sides of the heat source portion 100, the vehicle heater, characterized in that the contact with the side of the heat source portion (100) to be fixed.
A heat source part 100 generating heat;
In the form of a plate, the first heat generating region 201 which is in surface contact with one side surface of the heat source 100, and a first air flow region 202 having at least one first through-hole 210 is formed 1 heat sink 200;
In the form of a plate, a second heat generating region 301 which is in surface contact with the other side surface of the heat source portion 100, and a second air flow region 302 having at least one second through-hole 310 is formed Two heat radiation plates 300; And
In an area where the first heat generating region 201 and the first through hole 210 of the first heat sink 200 are in contact with each other, an integral tab structure protruded toward the second heat sink 300, and the other side of the second heat sink A rod coupling part 400 coupled to 300 to accommodate the heat source part 100 therein; Vehicle heater comprising a.
The method of claim 3,
The rod coupling part 400,
Vehicle heater, characterized in that the cut and bent area when the first through-hole 210 is in contact with the first heat generating region (201).
The method of claim 4, wherein
The other end of the rod coupling portion 400,
The heater of claim 1, wherein the heater is inserted into the second through hole 310 which is in contact with the second heat generating region, and is coupled to the second heat dissipation plate.
The method of claim 5,
The rod coupling portion 400 inserted into the second through hole 310,
A vehicle heater, which is bent by the pressure applied in the width direction.
The method of claim 3,
The first through hole 210 is formed of a 1-1 through hole 211 formed through a region in contact with the first heat generating region 201 and a 1-2 through hole 212 formed through a remaining region. Lose,
The second through hole 310 is composed of a 2-1 through hole 311 formed through a region in contact with the second heat generating region 301 and a 2-2 through hole 312 formed through the remaining region. Vehicle heater, characterized in that.
The method of claim 7, wherein
The first louver tab 220 extending in the height direction from the edge of the first-second through hole 212 and the second louver extending in the height direction from the edge of the second-second through hole 312. Vehicle heater further comprises a tab (320).
The method of claim 8,
The first louver tab 220 and the second louver tab 320 are
Vehicle heater, characterized in that the cut and bent area when the first through-hole 212 and the second through-hole 212 is manufactured.
The method of claim 7, wherein
The sizes of the first through holes 211 and the second through holes 212 and the second through holes 311 and the second through holes 312 are different from each other. Vehicle heater, characterized in that.
The method of claim 6,
The second heat generating region 301 of the second heat dissipation plate 300 has a concave side surface in contact with the heat source part 100,
The other end of the rod coupling part 400 is a vehicle heater, which is bent toward a concave second heat generating region 301.
The method of claim 6,
The rod coupling part 400 is formed on both sides in the width direction based on the heat source part 100, and the rod coupling part 400 is formed in a plurality of spaced apart from each other along the longitudinal direction.
The method of claim 3,
The heat source unit 100,
PTC element 110;
An electrode plate 120 in electrical contact with the PTC element 110;
An insulating guide member 130 for insulating the PTC element 110 and the electrode plate 120 from the rod coupling part 400; And
An insulating layer 140 interposed between the electrode plate 120 and the first heat dissipation plate 200;
Vehicle heater comprising a.
The method of claim 3,
The insulation guide member 130,
At least one opening 131 in which the PTC element 110 is mounted is formed on an upper surface thereof, and an electrode plate accommodating part 132 in which the electrode plate 120 is accommodated is formed on a lower surface thereof. Car heater.

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