KR200336270Y1 - Pre-Heater for Vehicles - Google Patents

Abstract

The present invention relates to a vehicle preheater, the PTC element 140 that generates heat when the power is supplied, the conductive plate 130 is installed to contact both sides of the PTC element, and the heat dissipation fins provided on the outside of the conductive plate In the vehicle preheater including the (116), the outer surface of the conductive plate 130 is provided with a pair of cases 110 incorporating a heat radiation fin 116 so that the outside air flows, the both cases 110 The coupling part 112 formed to surround the conductive plate 130 and the PTC element 140 at one end thereof facing each other, and the PTC element 140 and the conductive plate 130 are formed between the coupling parts 112. It is composed of a heat core 100 including a fixing bar 120 for fixing the case 110 of both sides in the provided state.

Description

Pre-Heater for Vehicles

The present invention relates to a vehicle preheater, and more particularly, to a vehicle preheater that preheats air by using heat generated by a PTC element.

In general, a heating apparatus is installed inside a vehicle using heating energy of cooling water warmed by heat generated from an engine for heating the interior of a vehicle or dehumidifying or defrosting the windshield of the vehicle.

Such a heating apparatus warms up the cooling water flowing around the engine after the engine is started and flows into the heater, so that even after the engine is operated, it takes a long time for the room to be heated. Therefore, in the cold winter, after the driver or passengers operate the engine, there is a disadvantage that they have to stay cold for a while.

In addition, in the electric vehicle, there is no heating heat source because there is no engine cooling water as described above.

On the other hand, Republic of Korea Utility Model Publication No. 20-0144945, in order to solve this problem has been disclosed a heating device using a PTC (Positive Temperature Coefficient) element.

In more detail, as shown in FIG. 1, in a vehicle heater having a plurality of PTC elements (not shown) that generate heat by supplying power, a plurality of through holes for accommodating the PTC elements are formed. The short-circuit-prevention receiving plate 13 has a frame 11 disposed in parallel therein, and a plurality of heat dissipation fins 15 are disposed between the short-circuit-prevention receiving plates 13 to facilitate heat exchange. One terminal of the terminal (for example,-terminal) is combined into one and connected to the power supply, and the other terminal (for example, + terminal) of each PTC element is connected to the power source through a switch (not shown) which operates individually.

Further, plates 17 and 18 are disposed between the short circuit preventing receiving plate 13 and the heat dissipation fin 15, and the short circuit preventing receiving plate 13 is disposed so that the PTC element is not shorted to each other by adhesion of foreign matter. The height is installed higher than the height of the heat dissipation fin 15 and the plates 17 and 18.

Here, reference numeral 19 denotes a terminal plate provided on the front and rear surfaces of the bottom surface of the frame 11, and one end of the plates 17 and 18 is connected to the terminal plate to form a single terminal together with the frame.

In this way, the short circuit of the PTC element due to foreign matter adhesion can be prevented, the number of wires can be saved, and the temperature and power consumption by individual driving can be efficiently controlled.

However, in the conventional heating apparatus, the height of the short circuit preventing accommodating plate 13 is formed higher than that of the heat dissipation fin 15 and the plate 17 in order to prevent the PTC element 20 from being shorted by moisture or foreign matter. However, since the receiving plate 13, the heat dissipation fin 15, the plate 17, and the like are all exposed to the outside, foreign substances, moisture, moisture, etc. of a size crossing the short-circuit preventing receiving plate 13 may be in contact with each other. At this time, there is a problem that a short circuit occurs, which shortens the performance of the heating apparatus, and further causes a fire in the vehicle.

Since the conventional heating apparatus is standardized as one set having a constant size and volume, it cannot be modified and installed in accordance with the type and size of the vehicle. There is inconvenience to manufacture and install.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, by physically blocking the PTC element and the conductive plate from foreign matter, moisture, moisture, etc. to fundamentally prevent a short circuit, the heating device and the It is an object of the present invention to provide a preheater for a vehicle in which parts can be unitized and variously applied according to the type or size of a vehicle.

1 is a perspective view showing a conventional vehicle heater.

2 is a perspective view showing a heat core constituting the vehicle preheater of the present invention.

3 is an exploded perspective view showing a heat core according to the present invention.

4 is a view showing a state in which a conductive plate constituting the heat core according to the present invention and a PTC element are wound and bonded with an insulating tape.

Figure 5 is a view showing a preheater according to the present invention, Figure 5a is an exploded perspective view showing a state in which one heat core is separated from the preheater assembly, Figure 5a is a combined perspective view of the preheater assembly.

<Description of Symbols for Main Parts of Drawings>

100: heat core 110: case

112: coupling portion 114: guide groove

116: heat sink fin 120: fixed bar

122: guide protrusion 124: groove

130: conductive plate 132: through hole

134: terminal 140: PTC element

150: insulating tape 160: cap

162: long 164: great end

166: small end 170: fixed block

172: insertion hole 174: fastening hole

180: connecting bracket 182: coupling ring

190: Bolt 192: Nut

200: preheater

A vehicle preheater of the present invention for achieving the above object includes a PTC element that generates heat as power is supplied, a conductive plate installed to contact both sides of the PTC element, and a heat dissipation fin installed outside the conductive plate. In the vehicle pre-heater, a pair of cases having a heat radiation fin is provided on the outer surface of the conductive plate through the outside air, the both cases are coupled to surround the conductive plate and the PTC element at one end facing each other And a heat core including a fixing bar for fixing the case on both sides with a PTC element and a conductive plate between the coupling parts.

The PTC element and the conductive plates on both sides thereof are taped with insulating tape.

In addition, the fixing bar is formed with a stepped guide protrusion corresponding to the guide grooves formed at both ends of the coupling portion at both ends thereof, the dovetail is coupled to the guide groove, one side of the fixing bar facilitates withdrawal of the fixing bar. Grooves are formed.

Terminals are respectively connected to the conductive plates on both sides of the PTC element, and caps of an insulator for inserting the conductive plates to prevent short circuits are provided at both ends of the conductive plate.

A plurality of heat cores are connected to form a preheater, and a pair of fixed blocks for connecting a plurality of heat cores are installed at both ends of the heat cores constituting the preheater. An insertion hole into which a cap opposite to the terminal is inserted is drilled into a hole, and a fastening hole into which a bolt and a nut fixing the fixing block is inserted is drilled into one side thereof, and the fastening hole is drilled into a polygon shape corresponding to the nut.

In addition, the fixed block is provided with a connecting bracket for connecting adjacent adjacent blocks, the connecting bracket is inserted into the fastening hole of the fixed block at both ends thereof is formed with a coupling ring piece through which the bolt passes.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

2 to 5 are views showing a vehicle preheater according to the present invention.

The vehicle heating apparatus according to the present invention, as shown in Figures 5a and 5b, is configured as a single preheater 200 in which a plurality of unitized heat core 100 is coupled.

Here, the heat core 100 will be described first, and the conductive plates 130 are contacted on both surfaces of the plurality of PTC devices 140 that generate heat as power is supplied, and the PTC devices 140 are installed on the conductive plates. The through hole 132 for easily transferring the heat generated by the heat transfer to the heat radiation fin 116 to be described later, and the +,-terminal 134 is connected to one end of both conductive plates.

The PTC element 140 and the conductive plates 130 on both sides of the PTC element are taped together with an insulating tape 150 to prevent short circuits due to foreign matter, moisture, moisture, and the like.

A pair of cases 110 are installed on the outer surface of the conductive plate 130 taped as the insulating tape 150. The case 110 has a shape in which both sides are opened so that outside air passes through the inside of the case. The heat dissipation fin 116 is installed inside the case.

In addition, at one end of the case 110, a coupling part 112 formed to surround the tapered conductive plate 130 and the PTC element 140 is formed, and stepped guide grooves are formed at both ends of the coupling part. A 114 is formed, and the guide groove 114 is slidingly coupled to the guide protrusion 122 of the fixing bar 120 having a cross-section having a substantially "C" shape, and a conductive plate (B) between the coupling portions 112. 130 and the case 110 of both sides is fixed with the PTC element 140. That is, the guide protrusion 122 of the fixing bar is stepped to correspond to the guide groove 114, the dovetail is coupled to the guide groove 114 to fix the case 110 of both sides (see Fig. 4).

In addition, grooves 124 are formed at both ends of the outer surface of the fixing bar 120 to facilitate the withdrawal of the fixing bar from the case 110.

In addition, as described above, the cap 160 of the insulator for preventing a short circuit is inserted into both ends of both cases 110 in the state in which the conductive plate 130 and the PTC element 140 are accommodated therein. A long hole 162 is formed in the cap 160 so that the terminal 134 connected to the conductive plate 130 protrudes to the outside through the long hole 162 of the cap.

Here, the cap 160 is composed of a large end portion 164 and a small end portion 166, the large end portion 164 is caught in the case 110, the small end portion 166 into the case 110. Inserted and fixed.

Next, the preheater 200 according to the present invention is configured by connecting a plurality of units according to the vehicle to be equipped with the unitized heat core 100 formed as described above, each pair of both ends of the heat core 100 It is connected to the fixed block 170 of.

The fixing block 170 is a hole 172 is inserted into the center 134 and the cap 160 is inserted into the center, the fastening hole 174 for coupling the opposite fixed block 170 on both sides thereof A plurality of holes are drilled.

The fastening hole 174 is drilled in a hexagonal shape corresponding to the nut 192 to prevent rotation of the nut 192 in the fastening hole 174.

The fixed block 170 is connected to another fixed block 170 adjacent to each other through the connection bracket 180, and the connection bracket is connected to one side of the fixed block 170 adjacent to each other at the bent ends 174. Coupling ring pieces 182 are respectively inserted into the coupling ring piece 182, the bolt 190 is fastened to the coupling ring piece 182.

Hereinafter, the assembly process of the heat core 100 configured as described above will be described.

First, the PTC element 140 is interposed between the conductive plates 130 to which respective terminals 134 are connected to one end thereof, and then the outer surfaces of both conductive plates are taped with the insulating tape 150.

At this time, while the terminal 134 is inserted into the long hole 162 of the cap 160, the cap is positioned on the connection portion between the terminal 134 and the conductive plate 130, and then the insulating tape 150 is placed on the cap. Tap to end 166.

Thereafter, the coupling portions 112 of each case 110 are positioned on both outer surfaces of the tapered conductive plate 130 as described above, and then the guide of the fixing bar 120 is formed in both guide grooves 114 of the coupling portions. Both cases 110 are coupled by slidingly engaging the protrusions 122.

The small end 166 of the remaining cap 160 is inserted into the space between the coupling parts 112 in the case 110 opposite to the terminal 134 to complete the assembly of the heat core 100. In the assembled heat core, since the conductive plate 130 and the PTC element 140 are sealed in the case 110, a short circuit due to foreign matter, moisture, moisture, or the like is completely prevented.

Therefore, the heat core 100 formed as described above supplies power to the PTC element 140 through the terminal 134 protruding outside the case 110 and the conductive plate 130 provided in the case 110. Heats the PTC element, and the heat generated is transferred to the heat dissipation fin 116 through the through hole 132 of the conductive plate 130, thereby heating the heat dissipation fin to heat the outside air passing through the heat dissipation fin 116 to be supplied to the vehicle interior. .

In addition, when the preheater 200 is formed by connecting a plurality of unitized heat cores 100 assembled as described above, a pair of fixed blocks 170 are installed at both ends of the heat core.

That is, the terminal 134 and the one end cap 160 of both ends of the heat core 100 are inserted into the insertion hole 172 at the center of the fixed block 170, and connected to one fastening hole 174 of the fixed block adjacent to each other. The bent ends of the bracket 180 are respectively inserted.

Then, the coupling ring piece 182 at both ends of the connecting bracket 180 and the coupling hole 174 of the fixed block 170 are in a state of being in agreement, and the bolt 190 is connected to the coupling hole 174 and the coupling ring piece 182. When the bolt is fastened and fixed to the nut 192 which is rotatably inserted into the opposite fastening hole 174, the assembly of the preheater 200 is completed.

For reference, the outer fastening hole 174 formed in the fixing block 170 of the heat core 100 positioned at the outermost side of the preheater 200 may be connected to the bolt 190 without interposing the connecting bracket 180. Fasten only with the nut 192.

In this way, the required size of the preheater 200 can be varied and produced, thereby improving workability and assembly.

As described above, according to the vehicular preheater of the present invention, the PTC element and the conductive plate are firstly sealed as an insulating tape and secondly sealed as a case, so that a short circuit due to foreign matter, moisture, moisture, etc. is prevented, and the preheater By uniting the heat core constituting the unit can vary the size of the pre-heater according to the vehicle, the overall configuration of the pre-heater is compact, the assembly is simple, there is an effect that the productivity and workability is improved.

Claims (7)

In a vehicle preheater including a PTC element 140 that generates heat as power is supplied, a conductive plate 130 installed to contact both surfaces of the PTC element, and a heat radiation fin 116 provided outside the conductive plate. In The outer surface of the conductive plate 130 is provided with a pair of cases 110 incorporating a heat radiation fin 116 to allow the outside air to pass through, the case 110 is the conductive plate 130 at one end thereof facing each other And the coupling part 112 formed to surround the PTC device 140 and the case 110 of both sides with the PTC device 140 and the conductive plate 130 disposed between the coupling parts 112. Vehicle preheater, characterized in that consisting of a heat core 100 comprising a fixing bar (120) to. The method of claim 1, The PTC device (140) and the conductive plate (130) at both sides thereof are tapered as an insulating tape (150). The method of claim 1, The fixed bar 120 has stepped guide protrusions 122 formed at both ends thereof to correspond to guide grooves 114 stepped at both ends of the coupling part 112 to be dovetail-coupled to the guide grooves 114. Vehicle preheater characterized in that. The method of claim 2, Terminals 134 are connected to the conductive plates 130 on both sides of the PTC device 140, and caps 160 of an insulator are inserted into both ends of the conductive plate 130 to prevent short circuit of the conductive plates. Vehicle preheater characterized in that. The method according to any one of claims 1 to 4, Vehicle preheater, characterized in that the preheater 200 is configured by connecting a plurality of the heat core (100). The method of claim 5, A pair of fixed blocks 170 for connecting a plurality of heat cores are installed at both ends of the heat core 100 constituting the preheater 200, and the pair of fixed blocks 170 have a terminal at the center thereof. 134 and the insertion hole 172 is inserted into the opposite side of the cap 160, the fastening hole 174 is inserted into the bolt 190 and the nut 192 for fixing the fixing block 170 on one side thereof, respectively. Pre-heater for a vehicle, characterized in that perforated. The method of claim 6, The fixing block 170 is provided with a connecting bracket 180 for connecting adjacent fixing blocks 170 to each other, and the connecting bracket 180 is inserted into the fastening hole 174 of the fixing block 170 at both ends thereof. Vehicle preheater, characterized in that the coupling ring piece 182 is formed through which the bolt 190 penetrates.