KR20110061886A - Free heater apparatus for vehicle - Google Patents

Abstract

PURPOSE: A preheater system for a vehicle is provided to improve heat exchanging efficiency even in a narrow space by arranging a heat sink in a direction of flowing air. CONSTITUTION: A preheater system for a vehicle comprises a heat sink(110), a Positive Temperature Coefficient assembly, and a housing(130). The heat sink comprises multiple heat radiating fins and air flow paths. The air flow paths are formed between the heat radiating fins. The PTC assembly is arranged in the direction of the air flow paths through the heat sink and comprises a terminal for power supply and a PTC element. The PTC element generates heat by receiving power from the terminal. The housing covers one and the other sides of the heat sink.

Description

Preheater Device for Vehicles {FREE HEATER APPARATUS FOR VEHICLE}

The present invention relates to a vehicle preheater device, and more particularly, to a vehicle preheater device installed in the duct to improve the heating efficiency through the PTC element.

In general, the vehicle is installed with a heating device that uses the heat energy of the cooling water warmed by the heat generated by the engine to remove indoor heating, dehumidification of the vehicle windshield or frost.

Such a heating device has a long time until the cooling water is heated and the room is heated because the cooling water flowing around the engine flows into the heater after the engine is operated. Accordingly, there is a disadvantage in that the passenger should be in a cold state for a certain time after starting.

Recently, a preheater using PTC elements is installed on all seats of a vehicle to convert electric energy into thermal energy at the same time as starting a vehicle in winter to operate the preheater until the coolant temperature rises to warm the room. Here, PTC (Positive Temperature Coefficient Thermally Sensitive Resistor) is a kind of n-type oxide semiconductor that is conductive by adding a trace amount of the earth element to BaTi03, and transfers a part of Ba to Sr or Pb to move the Curie temperature. When the temperature is reached, the device has a property of rapidly increasing the resistance value as the temperature rises due to a phase transition. That is, the characteristic of PTC is that the resistance increases rapidly at a constant temperature (Curie temperature).

1 is a perspective view showing a conventional vehicle preheater apparatus using a PTC element, and FIG. 2 is an exploded view of a conventional vehicle preheater apparatus.

As shown in FIGS. 1 and 2, a conventional preheater device is in contact with a heat source unit 11 and a heat source unit 11 including a terminal unit for power supply, a PTC element that generates heat by receiving power from the terminal unit. While the heat dissipation portion 12 for effectively dissipating heat, and the terminal portion, the heat source portion 11, the heat dissipation portion 12 is enclosed large housing (20). Here, the housing 20 is formed with a plurality of heat dissipation holes (20a) on the surface so that the heat of the heat dissipation portion 12 can be effectively dissipated out of the housing 20, the air passes through the heat dissipation holes (20a) The temperature rise of the air is made by the heat radiating portion 12 in the process. In the state in which the housing 20 is divided, the terminal portion, the heat source portion 11, and the heat dissipation portion 12 described above are incorporated, and the divided housing 20 has a conventional fastening means, for example, a screw, a hook, a fastening pin. To be mutually coupled.

By the way, in the case of the conventional vehicle preheater device, it is usually installed on the heater device side of the vehicle, the heat generated by the preheater device is a small amount of heating heat, there was a problem that it was not sufficiently transmitted to the passengers through the duct. In particular, in the conventional vehicle preheater device, since air passes in the width direction of the heat radiating part, heat exchange with the PTC element is small for a short passage time, and the utilization of the preheater device in terms of the package is due to the structure that is mounted only inside the air conditioner. There was a problem such as falling.

An object of the present invention for solving this problem, to provide a vehicle pre-heater device to maximize the heating performance using the PTC.

In order to achieve the above object, the present invention includes a heat sink, a PTC assembly, and a housing, wherein the heat sink is disposed so that a plurality of heat dissipation fins are stacked and an air flow path is formed between the plurality of heat dissipation fins. And a PTC element for generating heat by receiving power from the terminal unit and being assembled to pass through the heat sink to be arranged side by side in the air flow path. The housing has one side and the other side of the heat sink. Secure to wrap.

Here, the PTC assembly is preferably disposed perpendicular to the heat sink along the longitudinal direction of the heat sink. On one surface of the heat dissipation fin, it is preferable that a convex portion for forming an air flow path is formed between other adjacent heat dissipation fins. The PTC assembly includes a terminal portion including a cathode terminal and a cathode terminal, a PTC element generating heat by receiving power from the terminal portion, a guide member having a seating groove in which the PTC element is seated, and one side of the terminal portion. It is preferred to include an insulator disposed in the. Preferably, at least one PTC assembly is disposed vertically in the heat sink. In the housing, it is preferable that an inlet port through which air is introduced is formed to face one end in the longitudinal direction of the heat sink, and an outlet port through which the introduced air is discharged is formed to face the other end in the longitudinal direction of the heat sink. The housing is preferably assembled to a duct through which air-conditioned air is moved. Preferably, the housing is assembled between an air conditioning duct through which air-conditioned air is moved and a discharge duct through which air-conditioned air is discharged. . The housing is preferably made of a polymer material resistant to heat deformation due to high temperature than the air conditioning duct and the discharge duct.

According to the present invention, the following remarkable effects can be generated.

First, the present invention can arrange the heat sink in a direction in which air passes, so that heat exchange efficiency through the heat sink can be increased even in a narrow space.

Second, the present invention has an advantage that the heating performance is improved by extending the heat exchange time between the air and the heat sink by having an air flow path moved in the longitudinal direction of the heat sink.

Third, since the present invention is composed of a compact and compact preheater device, there is an advantage that can be easily mounted even in the narrow conduit of the duct.

Fourth, the present invention is a structure in which the duct is built, it is possible to minimize the heat loss that can be generated in the process of passing through the duct, in particular, because it is installed in the duct adjacent to the discharge duct, it is possible to improve the initial heating performance of the starting room This has the advantage of increasing customer satisfaction through improved heating performance.

First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a perspective view of a vehicle preheater device according to the present invention, Figure 2 is an exploded perspective view of a vehicle preheater device according to the present invention, Figure 3 is a vehicle preheater according to a modification of the present invention 4 is a perspective view of the device, and FIG. 4 is an exploded perspective view of the vehicle preheater device according to a modification of the present invention.

As shown in Figs. 1 to 4, the vehicle preheater apparatus 100 according to the present invention is largely composed of a PTC assembly 120, a heat sink 110, and a housing 130, It is a structure that is assembled.

Specifically, the PTC assembly 120 includes a terminal portion 121 for supplying power, a PTC element 122 that generates power substantially by receiving power from the terminal portion 121, and a PTC element 122. It comprises a guide member 123 having a seating groove 126 for seating, and an insulator 124 for insulation of the terminal portion 121.

Here, the terminal portion 121 is composed of a positive terminal 121a and a negative terminal 121b is mounted on the socket 125, the heat generated from the PTC element 122 is in contact with the PTC element 122 The heat sink 110 is delivered to the heat dissipation. Since the specific configuration of the PTC assembly 120 belongs to a well-known matter, further description thereof will be omitted.

However, the PTC assembly 120 is assembled perpendicular to the heat sink 110 to be arranged in parallel with the air flow direction. More specifically, the PTC assembly 120 is disposed perpendicular to the heat sink 110 along the longitudinal direction of the heat sink 110.

Thus, the air is moved along the longitudinal direction of the heat sink 110 and heat exchange with the PTC assembly 120 and the heat sink 110, as described above, the air in the present invention is the length of the heat sink 110 While moving in the longitudinal direction along the direction, in the conventional vehicle preheater device, since the air is moved in one direction along the width direction of the heat sink 110, the present invention extends the time for heat exchange compared to the prior art heating It can improve performance.

The heat sink 110 has a structure of a plurality of heat dissipation fins 111 in which a plurality of heat dissipation fins 111 are stacked, and an air flow path 112 through which air flows is formed between the plurality of heat dissipation fins 111. At this time, it is preferable that the convex part 114 for forming the air flow path 112 protrudes from one surface of the heat radiation fin 111.

In the present embodiment, the convex portion 114 is configured to be formed on one surface of the heat dissipation fin 111 to form an air flow path 112 between adjacent heat dissipation fins 111, but the convex portion 114 of the heat dissipation fin 111 is formed. It may be formed on both sides, it may be formed alternately to the plurality of heat radiation fins 111 arranged in a stack.

The heat dissipation fins 111 are formed with insertion holes 113 through which the PTC assembly 120 is assembled. The insertion hole 113 is formed at the same position in the plurality of heat dissipation fins 111 arranged in a stack so that the PTC assembly 120 is inserted into the heat sink 110 in the vertical direction. In particular, the insertion hole 113 is formed in a long hole form extending in the longitudinal direction of the heat radiation fin 111, the PTC assembly 120 is inserted into the insertion hole 113 of the long hole form parallel to the flow direction of the air Can be arranged.

The housing 130 is a case for accommodating the heat sink 110 and the PTC assembly 120. The housing 130 surrounds one side of the heat sink 110 and the other side of the heat sink 110. It is composed of the other housing (130b).

Since the housing 130 has a structure surrounding the heat sink 110, the housing 130 is made of a polymer material that can withstand the high temperature of the PTC element 122. In particular, the housing 130 is preferably made of a polymer material resistant to high temperature thermal deformation than the material of the surrounding duct.

The inlet 131 through which air is introduced and the outlet 132 through which the introduced air is discharged are formed in the housing 130, respectively, and the inlet 131 is formed to face one end of the heat sink 110 in the longitudinal direction. The outlet 132 is formed to face the other end in the longitudinal direction of the heat sink 110. Therefore, the air introduced through the inlet 131 may be discharged through the outlet 132 after heat exchange with the heat sink 110 while moving along the longitudinal direction of the heat sink 110.

In this embodiment, various types of housing 130 are proposed, as shown in FIGS. 1 and 2, the edge portion of the housing 130 may be formed to be bent in a rounded shape, and FIGS. 3 to 4. As shown in, the edge portion of the housing 130 may be formed in a rectangular shape may be configured in the form of a rectangular parallelepiped.

5 is a view showing a state in which the vehicle pre-heater apparatus according to a modification of the present invention is assembled between the air conditioning duct and the discharge duct.

As shown in FIG. 5, the housing 130 is assembled to a duct through which air-conditioned air is moved.

In particular, the housing 130 according to the present embodiment is assembled between the air conditioning duct 210 through which the air is moved and the discharge duct 220 through which the air conditioned is discharged through the discharge port 221. At this time, the fitting jaw portion 133 is formed at the inlet 131 and the outlet 132 of the housing 130.

The fitting jaw portion 133 has a structure that is bent in the inlet 131 and the outlet 132, the air conditioning duct 210 and the discharge duct 220 to be easily attached to the air conditioning duct 210 and the discharge duct 220. ) To fit together.

As such, when the housing 130 is disposed adjacent to the discharge duct 220, the heat generated from the PTC element 122 may be transferred to the passenger by moving a short duct distance, and thus the initial starting indoors. It can improve the heating performance.

Although the present invention has been described in detail using the preferred embodiments, the scope of the present invention is not limited to the specific embodiments, and should be interpreted by the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a perspective view showing a vehicle preheater device according to the present invention.

Figure 2 is an exploded perspective view showing a vehicle preheater device according to the present invention.

Figure 3 is a perspective view of a vehicle preheater device according to a modification of the present invention.

Figure 4 is an exploded perspective view showing a vehicle preheater device according to a modification of the present invention.

5 is a state diagram showing a state in which the vehicle preheater device according to a modification of the present invention is assembled between the air conditioning duct and the discharge duct.

6 is a perspective view showing a conventional vehicle preheater apparatus using a PTC element.

Figure 7 is an exploded perspective view showing an exploded view of a conventional vehicle preheater device.

※ Code explanation for main part of drawing ※

110: heat sink 120: PTC assembly

130: housing 210: air conditioning duct

220: discharge duct

Claims (9)

 A heat sink 110 in which a plurality of heat dissipation fins 111 are disposed to be stacked and an air flow path 112 is formed between the plurality of heat dissipation fins 111; The heat sink 110 includes a terminal unit 121 for power supply and a PTC element 122 that generates heat by receiving power from the terminal unit 121, and is arranged side by side in the air flow path 112. PTC assembly 120 assembled through); And And a housing (130) for fixing the one side and the other side of the heat sink (110) to be wrapped. The method according to claim 1, The PTC assembly 120 is a vehicle pre-heater device, characterized in that disposed perpendicular to the heat sink (110) along the longitudinal direction of the heat sink (110). The method according to claim 1, On one surface of the heat dissipation fins 111, a convex part 114 for forming an air flow path 112 between adjacent heat dissipation fins 111, characterized in that protrudes. The method according to claim 1, The PTC assembly 120 includes a terminal portion 121 including a negative electrode terminal 121b and a positive electrode terminal 121a, a PTC element 122 that generates heat by receiving power from the terminal portion 121; And a guide member (123) having a seating groove (126) on which the PTC element (122) is seated, and an insulator (124) disposed at one side of the terminal portion (121). The method according to claim 2, At least one PTC assembly 120 is disposed vertically on the heat sink (110). The method according to claim 2, The inlet 131 through which air is introduced is formed in the housing 130 so as to face one end of the heat sink 110 in the longitudinal direction, and the outlet 132 through which the introduced air is discharged is formed in the heat sink 110. A vehicle preheater device, characterized in that it is formed to face the other end in the longitudinal direction. The method according to claim 6, The housing 130 is a vehicle pre-heater device, characterized in that assembled in the duct that the air is moved. The method of claim 7, The housing 130 is assembled between the air-conditioning duct 210 to which the air-conditioned air is moved and the discharge duct 220 to which the air-conditioned air is discharged, and is provided at the inlet 131 and the outlet 132 of the housing 130. Pre-heater device for a vehicle, characterized in that the fitting jaw portion 133 is formed to be coupled to the air conditioning duct 210 and the discharge duct 220. The method according to claim 8, The housing 130 is a vehicle pre-heater device, characterized in that the air conditioning duct 210 and the discharge duct 220 is made of a polymer material resistant to heat deformation due to high temperature.

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