KR20070068954A - Sub heater and hot water heater with the same - Google Patents

Abstract

A sub heater and a hot water heater system with the same are provided to mount an elastic element for increasing compressing force between heating elements and an electrode plate, thereby increasing thermal conductivity. A sub heater comprises heating elements(200), and an electrode plate(210) disposed outside the heating element. An elastic element(220) has a first pressing part formed curvedly toward the electrode plate for pressing the electrode plate. An insulating element(240) is disposed outside the electrode plate for insulating the electrode plate, wherein the elastic element is disposed between the insulating element and the electrode plate.

Description

Auxiliary heater and hot water heater having the same {SUB HEATER AND HOT WATER HEATER WITH THE SAME}

1 is a perspective view showing a conventional hot water heater.

FIG. 2 is an exploded perspective view of the auxiliary heater of FIG. 1.

3 is a perspective view showing an embodiment of a hot water heater according to the present invention.

4 is a vertical cross-sectional view of the hot water heater shown in FIG.

5 is a perspective view illustrating a state in which an inflow tank and an outflow tank are separated from the hot water heater of FIG. 3.

6 is an exploded perspective view showing an embodiment of the auxiliary heater according to the present invention.

7 is a perspective view illustrating an embodiment of an elastic member provided in the auxiliary heater.

8 is a perspective view showing another embodiment of the elastic member provided in the auxiliary heater.

<Description of Symbols for Major Parts of Drawings>

100: hot water heater 110: pipeline

115: auxiliary heater 120: heat radiation fin

200: heat generating element 205: insulating plate

210: electrode plate 220: elastic member

225: first pressure unit 230: air flow gap

235: second pressure unit 240: insulating member

The present invention relates to a hot water heater, and more particularly to a hot water heater that can improve the thermal conductivity performance.

In general, when the engine of a device such as a vehicle overheats, there is a risk of deterioration and explosion, so that the coolant is circulated to cool it, and the coolant heated by heat generated from the engine heats the air flowing between the radiating fins of the hot water heater. So that the warm air is supplied to the room.

That is, the coolant is heated by the engine to hot water, and the hot water performs a function of warming the air by exchanging heat with the air introduced into the vehicle interior through a blower path connected to the vehicle interior.

1 is a perspective view showing a conventional hot water heater, Figure 2 is an exploded perspective view of the auxiliary heater of FIG.

Referring to FIG. 1, the conventional hot water heater 10 is installed between the hot water heater core 11 and the heat dissipation fin 12 of the hot water heater core 11 that discharges heat to the heat dissipation fin 12 by flowing hot water. And an auxiliary heater 25 which transfers and releases heat to the column 12.

The hot water heater 10 includes a conduit 15 through which coolant that cools the engine flows, and the conduit 15 emits heat to the air through the heat dissipation fin 12. At this time, the auxiliary heater 25 is disposed at predetermined intervals between the heat dissipation fin 12 together with the conduit 15 through which the coolant flows.

In addition, the auxiliary heater 25 disposed between the heat dissipation fins 12 of the hot water heater 10 generates heat by receiving power from a battery of the vehicle, and transmits heat to the heat dissipation fins 12 while the engine is warmed up. The warm air is supplied to the interior of the vehicle. Here, the auxiliary heater 25 is a PTC heater, and is mainly made of a positive temperature coefficient thermistor (PTC) having a small change in temperature coefficient even if the temperature of the heater is changed.

Referring to FIG. 2, the conventional auxiliary heater 25 includes a heat generating element 26, an electrode plate 27 disposed outside the heat generating element 26, and an electrode plate disposed outside the electrode plate 27. It has a sandwich structure of three layers composed of an insulating member 28 that insulates 27. do. In the conventional auxiliary heater 25 having the above-described configuration, the compressive force between the heat generating element 26 and the electrode plate 27 is not sufficient, so that heat generated from the heat generating element 26 is not well conducted to the electrode plate 27. Do not. In order to solve this problem, the auxiliary heater 25 was mounted on the frame of the hot water heater 10 using a fastening member. However, this method also cannot provide sufficient compressive force between the heat generating element 26 and the electrode plate 27 due to the structure in which the heat generating element 26 is spaced apart from the electrode plate 27, and also provides a hot water heater core ( To block the air flow in step 11). Therefore, there is a need for improving the configuration of the auxiliary heater 10 in order to improve the heat conduction performance.

The present invention has been made by the necessity as described above, and an object thereof is to provide an auxiliary heater capable of improving heat conduction performance.

An auxiliary heater according to the present invention comprises: a heating element; An electrode plate disposed outside the heat generating element; An elastic member disposed on an outer side of the electrode plate, the elastic member having a first pressing portion formed to be bent toward the electrode plate to press the electrode plate; And an insulating member disposed outside the elastic member to insulate the electrode plate.

In one embodiment, the elastic member is characterized in that disposed on one side of the electrode plate.

In one embodiment, the elastic member is characterized in that it is disposed on both sides of the electrode plate.

In one embodiment, the elastic member is characterized in that the metal material.

In one embodiment, the first pressing portion is formed integrally with the main body of the elastic member, the air flow gap in the direction perpendicular to the longitudinal direction along the longitudinal direction of the elastic member; Characterized in that spaced apart.

In an embodiment, the elastic member may further include a second pressing unit formed alternately with the first pressing unit along a length direction.

In one embodiment, the auxiliary heater is disposed between the electrode plate, the insulating plate is formed to be spaced apart a predetermined interval along the longitudinal direction formed with a plurality of mounting holes in which the heat generating element; characterized in that it further comprises a.

Hot water heater according to the present invention comprises: a plurality of pipes through which the cooling water of the vehicle flows; A plurality of heat dissipation fins disposed between the pipe lines to exchange heat; And an auxiliary heater according to any one of claims 1 to 6, which is inserted between the radiating fins and generates heat.

Hot water heater according to the present invention comprises: a plurality of pipes through which the cooling water of the vehicle flows; A plurality of heat dissipation fins disposed between the pipe lines to exchange heat; And an auxiliary heater of claim 7 inserted between the radiating fins to generate heat.

Hereinafter, an exemplary embodiment of an auxiliary heater and a hot water heater having the same according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification. In addition, in the present embodiment, for convenience of description, a vehicle hot water heater is described as an example, but this is only one embodiment of the present invention and the technical scope of the present invention is not limited by the illustrated embodiment.

Figure 3 is a perspective view showing an embodiment of the hot water heater according to the present invention, Figure 4 is a vertical sectional view of the hot water heater shown in Figure 3, Figure 5 is the inlet and outlet tanks separated from the hot water heater of Figure 3 It is a perspective view which shows the state.

3 to 5, the hot water heater 100 includes an inlet tank 165 through which the coolant flows from the coolant inlet pipe 160, and an outlet tank 170 through which the introduced coolant flows out into the coolant outlet pipe 175. And a hot water heater core 105 arranged between the inflow tank 165 and the outflow tank 170 to exchange heat with the incoming air. Here, the hot water heater core 105 is disposed between the inlet tank 165 and the outlet tank 170 to provide a plurality of conduits 110 for providing a flow path of cooling water, and a plurality of conduits 110 disposed between the plurality of conduits 110. The auxiliary heater 115 is inserted into the heat dissipation fin 120 and the mounting portion 137 disposed between the plurality of heat dissipation fins 120. Here, the auxiliary heater 115 is preferably provided with a PTC heater.

The inlet tank 165 includes a coolant inlet pipe 160 through which hot water or engine coolant flows from an engine (not shown) of the vehicle. The outlet tank 170 is disposed to be spaced apart from the inlet tank 165 by a predetermined interval, and has a coolant outlet pipe 175 through which the coolant passing through the conduit 110 returns to the engine of the vehicle. In addition, in this embodiment, the cooling water flows along the direction of the arrow, that is, the direction F1-> F2-> F3 to prevent noise during the flow. In addition, the air flows in the direction of arrow O after the hot water heater 100 flows in from the direction of arrow I. At this time, the heat energy supplied from the high-temperature cooling water is transmitted to the heat radiation fins 120 to be described later along the surface of the pipeline 110, so that the air flows into the vehicle interior by the blower (not shown) and the heat radiation fins 120. Warm air is supplied to the vehicle interior by heat exchange. Cooling water that has been subjected to heat exchange and cooled to a predetermined temperature or less is collected in the outflow tank 170 and circulated back to the engine side along the coolant outlet pipe 175 to cool the engine, and is then supplied through the coolant inlet pipe 160. It supplies heat energy to the air blown into the vehicle interior.

The plurality of conduits 110 are disposed to form an angle with the inflow tank 165 and the outflow tank 170, and provide a passage through which the coolant flows from the inflow tank 165 toward the outflow tank 170. In one embodiment, the plurality of conduits 110 is inserted into a hole formed in the opposite side of each of the inflow tank 165 and the outflow tank 170 and then installed by welding or the like. The pipe 110 is preferably a flat tube.

The plurality of heat dissipation fins 120 are disposed between the conduits 110 and exchange heat between the coolant flowing along the conduits 110 and the air introduced by the blower (not shown). In one embodiment, each heat dissipation fin 120 is installed between two adjacent conduits 110. The heat dissipation fins 120 are preferably made of corrugated fins to increase the heat exchange rate. The corrugated fin preferably has a plurality of louvers extending at a predetermined angle in the direction I in which air is introduced to increase the heat exchange rate.

The auxiliary heater 115 is inserted into the mounting portion 137 disposed between the heat dissipation fins 120. Hereinafter, the auxiliary heater 115 of the present invention will be described in detail with reference to the accompanying drawings.

Figure 6 is an exploded perspective view showing an embodiment of the auxiliary heater according to the present invention, Figure 7 is a perspective view showing an embodiment of the elastic member provided in the auxiliary heater, Figure 8 is an elastic member provided in the auxiliary heater Is a perspective view of another embodiment of the present invention.

6 to 8, the auxiliary heater 115 includes a flat heating element 200, an electrode plate 210 disposed outside the heating element 200, and an outer side of the electrode plate 210. An elastic member 220 is disposed, and an insulating member 240 disposed outside the elastic member 220 to insulate the electrode plate 210. In an embodiment, the insulating plate 205 on which the heating element 200 is installed may be further disposed between the electrode plates 210. The heating elements 200 installed in the insulating plate 205 may contact each other according to the use environment of the hot water heater 100. In order to prevent such heating elements 200 from contacting each other, the insulating plate 205 includes a plurality of mounting holes 206 formed to be spaced apart by a predetermined interval along the longitudinal direction, and the heating element 200 includes the mounting holes ( 206 is preferably inserted.

In one embodiment, the heating element 200 is a PTC heater made of a resistive material such as berium titanic acid, the number of elements is preferably made of 3 to 10 elements compared to the allowable power of the vehicle. In addition, the set temperature TO has a constant temperature characteristic of 165 ° C. or less, and has a thickness of 1 to 1.5 mm.

The electrode plate 210 is disposed on an opposite surface of the heat generating element 200 and has a long and flat shape. The electrode plate 210 is made of a material such as copper, aluminum, and the heating element 200 and the electrode plate 210 are installed in close contact with each other to provide good electrical conductivity. It is preferable that the electrode plate 210 be a pair.

The elastic member 220 is disposed outside the electrode plate 210 so as to press the electrode plate 210 toward the heating element 200, and one side thereof protrudes toward the electrode plate 210. That is, the elastic member 220 is disposed between the insulating member 240 and the electrode plate 210 which will be described later. The elastic member 220 may be disposed on both sides of the electrode plate 210 as shown in FIG. 6, but may not be attached to the drawing, but may be disposed on one side of the electrode plate 210. The elastic member 220 is preferably made of a metal material to improve the thermal conductivity performance of the auxiliary heater (115). For example, a copper plate having good thermal conductivity may be employed as the elastic member 200.

In one embodiment, the elastic member 220 is provided to be bent toward the electrode plate 210 has a first pressing portion 225 for pressing the electrode plate 210 toward the heating element 200. The first pressing part 225 is formed integrally with the body 222 of the elastic member 220. An air flow gap 230 through which air flows in a direction perpendicular to the length direction is formed between the first pressing parts 225 to be spaced apart from each other by a predetermined interval. In addition, the elastic member 220 preferably further includes a second pressing portion 235 formed alternately with the first pressing portion 225 along the longitudinal direction. The first pressing unit 225 and the second pressing unit 235 may be bent in the opposite direction alternately with respect to the air flow gap 230, or only the first pressing unit 225 electrode plate 210 It may be formed to be bent toward).

The insulating member 240 is disposed outside the elastic member 220 to insulate the electrode plate 210. That is, the outside of the electrode plate 210 is covered by an insulating member (eg, polyimide tape) made of an insulating material. In one embodiment, the insulating member 240 is preferably a polyimide, Teflon-based film type.

Hereinafter, the operation of the hot water heater according to the preferred embodiment of the present invention will be described with reference to FIGS.

First, when the vehicle is started, the coolant is circulated along the flow path by the coolant circulation device (not shown). The coolant flows into the inflow tank 165 along the coolant inlet pipe 160, is collected into the outflow tank 170 along the conduit 110, and then discharged along the coolant outlet pipe 175.

At this time, the cooling water of a predetermined temperature or more is discharged thermal energy while passing through the conduit (110). The heat of the coolant passes through the surface of the conduit 110 to the heat dissipation fins 120. At this time, the air circulated into the vehicle interior by the blower (not shown) is in contact with the heat dissipation fin 120, the pipeline 110 while passing through the hot water heater 100, the temperature rises. In this way, the warmed air is supplied to the interior of the vehicle through heat exchange.

On the other hand, since the temperature of the coolant is hard to be heated above a predetermined temperature at the beginning of driving of the vehicle, power is applied to heat the auxiliary heater 115. Since the thermal energy supplied from the auxiliary heater 115 is also transmitted to the heat radiation fin 120, the thermal energy is supplied to the air to heat the air supplied to the inside of the vehicle.

According to the configuration as described above, the present invention increases the pressing force of the heating element and the electrode plate by providing an elastic member having an air flow gap.

Although the present invention has been described taking the hot water heater as an example, the technical scope of the present invention is not limited thereto. In addition, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and those skilled in the art to which the art belongs, various modifications and equivalent other embodiments are possible therefrom. I will understand the point. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

As described above, the auxiliary heater and the hot water heater having the same according to the present invention can increase the pressing force of the heating element and the electrode plate by installing an elastic member, unlike the conventional invention. Therefore, the present invention can improve thermal conductivity.

In addition, the present invention can improve the flow of air by forming an air flow gap in the elastic member.

Claims (9)

Heating element; An electrode plate disposed outside the heat generating element; An elastic member disposed on an outer side of the electrode plate, the elastic member having a first pressing portion formed to be bent toward the electrode plate to press the electrode plate; And And an insulating member disposed outside the elastic member to insulate the electrode plate. The method of claim 1, The auxiliary heater, characterized in that the elastic member is disposed on one side of the electrode plate. The method of claim 1, The auxiliary heater, characterized in that the elastic member is disposed on both sides of the electrode plate. The method of claim 1, The auxiliary member is characterized in that the elastic member is a metal material. The method of claim 1, The first pressing portion is formed integrally with the main body of the elastic member, the air flow gap in the direction perpendicular to the longitudinal direction along the longitudinal direction of the elastic member; between the first pressing portion; Auxiliary heater characterized by. The method of claim 1, And the elastic member further comprises a second pressing portion formed alternately with the first pressing portion along a length direction. The method according to any one of claims 1 to 6, And an insulating plate disposed between the electrode plates and spaced apart from each other by a predetermined distance along a longitudinal direction, the insulating plate having a plurality of mounting holes in which the heating elements are installed. A plurality of pipes through which cooling water of the vehicle flows; A plurality of heat dissipation fins disposed between the pipe lines to exchange heat; And The auxiliary heater of any one of claims 1 to 6 is inserted between the radiating fins to generate heat, characterized in that the hot water heater. A plurality of pipes through which cooling water of the vehicle flows; A plurality of heat dissipation fins disposed between the pipe lines to exchange heat; And Hot water heater comprising a; auxiliary heater of claim 7 is inserted between the radiating fins to generate heat.

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