KR100730628B1 - Radiating structure of register for air blower control apparatus - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat dissipation structure of a resistor for a blower control device, and aims to reduce air flow pressure loss and noise in a blow passage by increasing heat dissipation while making the resistor compact.

The heat dissipation structure of the resistor according to the present invention is characterized in that one or more corrugated heat dissipation fins 5 are provided on the substrate 1. In addition, the substrate 1 may be formed by joining two plates having a flow path formed therein, and may be formed in a single tube or a multiple tube shape. In this case, it is preferable that the operating oil for heat exchange is filled in the substrate. Therefore, the heat transfer area is wide by the one or more corgate type heat sink fins 5 and the air passing between the substrate 1 and the heat sink fins 5 flows through the louvers 51, so that the heat radiation effect is excellent. When the operating oil for heat exchange is filled in the substrate 1, the heat dissipation effect is doubled.

Resistors, Heat Sink, Heat Sink

Description

Heat dissipation structure of register for blower control device {RADIATING STRUCTURE OF REGISTER FOR AIR BLOWER CONTROL APPARATUS}

1 is a perspective view illustrating a resistor to which a heat dissipation structure according to Embodiment 1 of the present invention is applied.

2 is a perspective view showing a resistor to which a heat dissipation structure according to Embodiment 2 of the present invention is applied.

3 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a third exemplary embodiment of the present invention is applied.

4 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a fourth exemplary embodiment of the present invention is applied.

5 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a fifth exemplary embodiment of the present invention is applied.

6 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a sixth embodiment of the present invention is applied.

7 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a seventh exemplary embodiment of the present invention is applied.

8 is a front view illustrating main parts of FIG. 7.                 

9 is a left side view of FIG. 8.

10 is an exploded perspective view showing main parts of a resistor to which a heat dissipation structure according to a eighth embodiment of the present invention is applied.

11 is a perspective view illustrating main parts of a resistor to which a heat radiation structure according to a ninth embodiment of the present invention is applied.

12 is a perspective view illustrating a resistor to which a conventional heat dissipation structure is applied.

<Explanation of symbols for the main parts of the drawings>

1: board | substrate, 5: corgate type heat sink,

2: series resistance circuit, 11, 12, 101, 102, 301, 501: plate

51: louver, 103, 203: euro,

201, 401, 502, 601: tube, 611: header pipe

The present invention relates to a heat dissipation structure of a resistor for a blower control device constituting a vehicle air conditioner, and more particularly to a heat dissipation structure of a resistor for a blower control device configured to effectively dissipate heat generated by resistors installed on a substrate. It is about.

The air blower constituting the vehicle air conditioner selectively enters the outdoor unit or the indoor unit through the air intake box, and the air is introduced into the axial direction of the centrifugal fan by the rotation of the centrifugal fan driven by the blower motor and discharged in the radial direction. It is a device that heats and heats the interior of a car by exchanging heat with a heat exchange medium passing through a heat exchanger in a case.

Meanwhile, the air-conditioning load is increased or decreased by adjusting the air volume control switch according to the indoor temperature of the vehicle. The air-conditioning load is changed by the voltage supplied to the blower motor to increase or decrease the number of revolutions of the blower motor. Air volume supplied to the case is increased or decreased. The register increases or decreases the rotational speed of the blower motor.

That is, the resistor has a substrate 91 having a series carbon resistance circuit printed on a plurality of series resistors or flat plates, generally in the form of coils, as shown in Fig. 12, projecting onto the substrate as needed. It has a heat radiation fin 92 formed. This register changes the resistance to the power supply circuit of the blower motor according to the operation of the air flow control switch to increase or decrease the voltage applied to the blower motor in multiple stages, thereby increasing and decreasing the rotational speed of the blower motor, thereby controlling the blower volume step by step. It is a device to protect the blower motor by stopping the operation of the blower motor by shorting the temperature fuse by resistance heat when the motor is overloaded.

Since resistors generate a lot of resistance heat, there is a risk of short circuit due to resistance heat. Therefore, in consideration of cooling performance, the resistor is mainly installed on the discharge port side of the scroll case where the centrifugal fan of the blower is installed. Therefore, if it is difficult to install inside the blower case due to assembly, it may be installed inside the radiator case.

In order to effectively dissipate the substrate 91 having the coil series resistance circuit, the substrate 91 is formed by aluminum casting, and the heat dissipation fins are integrally formed with the substrate 91 on the outer circumferential surface of the substrate 91. (92) are installed.

However, in the case of a resistor in which the substrate 91 and the heat dissipation fin 92 are integrally aluminum-cast, the heat dissipation is poor, and thus the size must be large. Therefore, when the resistor is disposed in the blow passage, the pressure loss and There is a problem of increasing noise.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and an object thereof is to improve heat dissipation of a resistor, but to reduce the air flow pressure loss and noise in a blow passage by making the resistor compact.

In order to achieve the above object, the present invention provides a plurality of resistors in series on a substrate to dissipate heat generated by the resistors of a resistor which determines the speed of the blower motor by selective connection with the resistors. In the heat dissipation structure of the resistor for the blower control device, a plurality of louvers are formed on one side or both sides of the substrate along the longitudinal direction, and corrugated heat dissipation fins bent in a zigzag shape are installed. It is characterized by.

According to the present invention, two substrates are joined to each other in correspondence with each other, and a corgate heat radiation fin is provided between the two plates to dissipate the resistor. Between the two plates can be filled with the heat exchange hydraulic fluid, in which case the substrate itself will function as a heat exchange pipe.

In addition, according to the present invention, the substrates are formed by joining two plates having flow paths formed on the inner surface to correspond to each other, and by filling the flow path hydraulic fluid into the flow paths of the two plates, the substrate itself functions as a heat exchange pipe. .

In addition, according to the present invention, the substrate has a flow path formed therein, and the upper and lower ends are formed in a tube shape, and the heat exchange hydraulic fluid is filled in the flow path of the substrate, so that the substrate itself functions as a heat exchange pipe. .

In addition, according to the present invention, the substrate is formed of a plurality of plates disposed at predetermined intervals, and by corrugated heat radiation fins are sequentially stacked between the plates, heat generation by the series resistance circuit provided between the two plates can be radiated. Can be.

In addition, according to the present invention, the substrate is composed of a plurality of tubes having a tank with a slot formed at the bottom and the corrugated heat radiation fins are sequentially stacked between these tubes to generate heat by a series resistance circuit installed between the two tubes. It can dissipate heat.

In addition, according to the present invention, the substrate is made of a plate, one side of the substrate is attached to a tube having a rectangular frame having a rectangular hole in the upper portion and a tank having a slot formed in the lower portion of the rectangular frame, the square The corrugated heat radiation fin is inserted into the hole and joined to the hole, and the inside of the tube is filled with a heat exchange fluid. The heat generated by the series resistance circuit provided on the substrate can be dissipated.                     

In addition, according to the present invention, the substrate is composed of a header pipe having a plurality of insertion holes at predetermined intervals on the upper surface, and a plurality of tubes in which the end inserted into the insertion hole is opened and the opposite end is blocked, and between the tubes By sequentially stacking the gate type heat dissipation fins, it is possible to dissipate heat generated by the series resistance circuit provided between the two tubes.

Other features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

<Example 1>

A heat dissipation structure of a blower control device register according to Embodiment 1 of the present invention will be described with reference to FIG.

Reference numeral 1 denotes a substrate of a resistor, which is formed in a flat plate and is insulated by installing a series resistor circuit 2 having a plurality of resistors connected in series on one side thereof, or printing a series resistor circuit 2 on one side thereof. And insulated. Reference numeral 3 is a connection part that is selectively connected to the series resistance circuit 2, and is connected to the blower motor (not shown) and to the air volume control switch (not shown) of the vehicle interior. Therefore, the air volume is controlled by changing the voltage of the blower motor by changing the voltage of the blower motor by the selective connection of the series resistance circuit 2 of the connection part 3 by adjusting the air volume control switch.

According to the first embodiment, a plurality of louvers 51 are formed on one side of the substrate along a length direction (or width direction), and a corrugate heat radiation fin 5 bent in a zigzag shape is provided. Is installed. The louver can be formed continuously by, for example, embossing or burring through an aluminum strip between the upper and lower forming rolls.

Therefore, heat generated from the series resistance circuit 2 is transferred to the heat dissipation fins to dissipate heat, and heat dissipation is performed by air flows through the gap formed by the louvers between the substrate and the heat dissipation fins, thereby providing excellent heat dissipation.

<Example 2>

The heat dissipation structure of the blower control device register according to Embodiment 2 of the present invention will be described with reference to FIG.

Since the heat dissipation structure of the second embodiment is the same as in the first embodiment described above, except that the heat dissipation fins 5 are provided on both sides of the substrate 1 in the first embodiment, the remaining constitution and operation are the same as those of the first embodiment. The same parts as in Example 1 are denoted by the same reference numerals and detailed description thereof will be omitted. In the heat dissipation structure of Example 2, since all the heat dissipation fins 5 are provided in both surfaces of the board | substrate 1, it is excellent in heat dissipation compared with the case of Example 1. FIG.

<Example 3>

The heat radiation structure of the blower control device register according to Embodiment 3 of the present invention will be described with reference to FIG.

In Example 3, the board | substrate 1 consists of the two plates 11 and 12 which open the surface corresponding to each other, mutually joined together, and corrugated heat radiation fin 5 between these two plates 11 and 12. ), Heat dissipation of the resistor can be performed. One of the two plates 11 and 12 is provided with a series resistance circuit 2 as described above. And, according to the third embodiment, the hydraulic oil for heat exchange can be further filled between the two plates 11 and 12, in which case the substrate 1 itself functions as a heat exchange pipe. In order to fill the heat exchange hydraulic fluid, it is preferable that an injection hole 13 is formed in one of the two plates 11 and 12. In addition, in the third embodiment, corrugated heat dissipation fins 5 may be further provided on one side or both sides of the substrate 1 as in the first embodiment.

<Example 4>

A heat radiation structure of the blower control device register according to the fourth embodiment of the present invention will be described with reference to FIG.

In Example 4, the board | substrate 1 consists of two plates 101 and 102 in which the flow path 103 was formed in the inner surface corresponding to each other, and is joined together, and heat-exchanges to the flow path 103 of the two plates 101 and 102, respectively. The filling of the working oil causes the substrate 1 itself to function as a heat exchange pipe. In this case, it is preferable that the series resistance circuit 2 is installed in one of the two plates 101 and 101, and the inlet 104 is installed in the other plate 102 so as to fill the heat exchange hydraulic fluid. Also in the fourth embodiment, corrugated heat dissipation fins 5 may be further provided on one side or both sides of the substrate 1 as in the first embodiment.

Example 5                     

The heat radiation structure of the blower control device register according to the fifth embodiment of the present invention will be described with reference to FIG.

In Example 5, the board | substrate 1 is formed in the shape of the tube 201 which the flow path 203 is formed in the inside, and the upper and lower ends were blocked, and the hydraulic fluid for heat exchange in the flow path 203 of this tube 201 is carried out. Is filled, the substrate 1 itself functions as a heat exchange pipe. The tube 201 may be closed by the upper and lower openings thereof covered by the upper and lower lids 205 and 207. Also in the fifth embodiment, corrugated heat dissipation fins 5 may be further provided on one side or both sides of the tube 201.

<Example 6>

A heat radiation structure of the blower control device register according to the sixth embodiment of the present invention will be described with reference to FIG.

In Example 6, the board | substrate 1 consists of the several plate 301 arrange | positioned at predetermined space | intervals, and corgate type heat radiation fins 5 are laminated one by one between the plates 301 and 301 which adjoin each other. In this case, the series resistor circuit 2 is preferably provided between two adjacent plates 301 and 301 near the center. In addition, a passage may be formed in the plates 301, and the hydraulic oil for heat exchange may be further filled in the passage. It is preferable that an injection hole 303 is formed at one side of the plate 301 to fill the heat exchange hydraulic fluid.

<Example 7>

A heat dissipation structure of a blower control device register according to a seventh embodiment of the present invention will be described with reference to FIGS. 7 to 9.

In Example 7, the substrate 1 has a tank 402 having a slot 403 formed at the bottom thereof, a plurality of tubes having a plurality of beads 404 formed on the outer circumferential surface thereof and a flange 405 formed along the edge thereof. 401, and the corrugated heat dissipation fins 5 are sequentially stacked between the tubes 401, and the tubes 401 are filled with hydraulic oil for heat exchange. The heat dissipation fins 5 may be bonded between the tubes 401 by brazing the plurality of beads 404 formed on the outer circumferential surfaces of the tubes 401 and the flange 405 formed at the edge thereof. In this case, it is preferable that a series resistance circuit 2 is provided between two tubes 401 and 401 at a central position, and the two outermost tubes 401 and 401 do not have a slot 403, and one tube ( 401 is provided with an inlet 407 for filling the operating oil for heat exchange.

<Example 8>

The heat radiation structure of the blower control device register according to Embodiment 8 of the present invention will be described with reference to FIG.

In Example 8, the board | substrate 1 consists of one plate 501, The one side surface of the said board | substrate 1, the rectangular frame 503 which has a square hole 504 in the upper part, and the said rectangular frame ( A tube 502 having a tank 505 having a slot 506 formed thereon is attached to a lower portion of the 503, and a corrugated heat dissipation fin 5 is inserted into the square hole 504 to be joined to the tube 502. The inside of the) is filled with the operating oil for heat exchange. In this case, it is preferable that the series resistance circuit 2 is provided on the other side of the substrate 1, and it is preferable that an injection hole is formed on one side of the tube 502 to fill the tube 502 with hydraulic oil for heat exchange. .

Example 9

A heat dissipation structure of a blower control device register according to a ninth embodiment of the present invention will be described with reference to FIG.

In the ninth embodiment, the substrate 1 includes a header pipe 611 having a plurality of insertion holes (not shown) formed at predetermined intervals on the upper surface thereof, and a plurality of tubes whose ends inserted into the insertion holes are opened and opposite ends thereof are blocked. 601, and corrugated heat dissipation fins 5 are sequentially stacked between the tubes 601. In this case, it is preferable that a series resistance circuit is installed between two adjacent tubes 601 and 601 in the center, and an inlet 602 for filling the heat exchange hydraulic fluid in one of the tubes 601 or the header pipe 611 is formed. .

In the heat dissipation structure of the blower control device resistor according to the present invention configured as described above, in order to dissipate heat generated by the series resistance circuit (2) provided on the substrate (1), corrugated heat dissipation fin (5) By installing one or more, the heat transfer area is wide and the air passing between the substrate 1 and the heat dissipation fins 5 flows through the louvers 51. The effect is excellent. Furthermore, in the present invention, the heat dissipation effect is doubled by filling corrugated heat dissipation fins 5 as well as a single tube or a multi-tube form to fill the inside of the substrate 1 as a heat exchange pipe so as to fill the heat exchange fluid therein. The registers can be protected from damage. In addition, since the heat dissipation structure of the resistor according to the present invention has excellent heat dissipation effect, the heat dissipation structure can be made compact, thereby reducing the flow resistance of the air caused by the resistor in the air passage and reducing the noise.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and is generally used in the field to which the present invention pertains without departing from the spirit of the present invention as claimed in the following claims. Anyone skilled in the art can make various modifications, as well as such modifications that fall within the scope of the claims.

Claims (13)

delete Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, A plurality of louvers 51 are formed on one side of the substrate 1 along the longitudinal direction, and corrugated heat radiation fins 5 bent in a zigzag shape are installed. A heat dissipation structure of a resistor for a blower control device, characterized in that a corgate heat dissipation fin (5) is provided on the other side of the substrate (1). Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 is formed by joining two plates 11 and 12 in correspondence with each other, and having a corgate-type heat radiation fin 5 disposed between the two plates. rescue. 4. The heat dissipation structure of a resistor for a blower control device according to claim 3, wherein a heat exchange hydraulic oil is further filled between the two plates (11, 12). 5. The heat dissipation structure of a resistor for a blower control device according to claim 3 or 4, wherein corrugated heat dissipation fins (5) are provided on a side of at least one of the plates (11, 12). Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 is a blower control device characterized in that the two plates (101, 102) having a flow path 103 formed on the inner surface corresponding to each other is bonded to each other, the hydraulic fluid for heat exchange is filled in the flow path of the two plates. Heat dissipation structure of the resistor. The heat dissipation structure of a resistor for a blower control device according to claim 6, wherein a corgate-type heat dissipation fin (5) is provided on a side of at least one of the two plates (101, 102). Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 has a flow path 203 formed therein and is formed in the form of a tube 201 blocked at the upper and lower ends, and a blower control device is characterized in that the heat exchange hydraulic fluid is filled in the flow path of the substrate. Heat dissipation structure of the resistor. Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 is composed of a plurality of plates 301 arranged at predetermined intervals, and the heat dissipation structure of the resistor for the blower control device, characterized in that the corrugated heat radiation fins 5 are sequentially stacked between the plates. . 10. The heat dissipation structure of a resistor for a blower control device according to claim 9, wherein the heat exchange working oil is further filled in the plate (301). Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 is composed of a plurality of tubes 401 having a tank 402 having a slot 403 formed at the bottom thereof, and corrugated heat dissipation fins 5 are sequentially stacked between the tubes. Heat exchange structure of the resistor for the blower control device, characterized in that the field is filled with the operating oil for heat exchange. Heat generated by the series resistance circuit in a resistor in which a plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and determine the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for radiating heat, The substrate 1 is made of one plate 501, a tank having a square frame 503 having a square hole 504 on the upper side and a slot 506 on the lower portion of the square frame. A tube 502 having a 505 is attached, and the corrugated heat dissipation fin 5 is inserted and bonded to the square hole, and the heat exchange hydraulic fluid is filled in the inside of the tube. Heat dissipation structure. A plurality of resistors are provided in series on the substrate 1 to form a series resistance circuit 2 and are generated by the series resistance circuit in a resistor for determining the speed of the blower motor by selective connection with the resistors. In the heat radiation structure of the resistor for the blower control device for heat dissipation, The substrate 1 includes a header pipe 611 having a plurality of insertion holes formed at predetermined intervals on an upper surface thereof, and a plurality of tubes 601 whose ends inserted into the insertion holes are opened and opposite ends thereof are blocked. A corrugated heat dissipation fin (5) is sequentially stacked between the heat dissipation structure of the resistor for the blower control device, characterized in that the tubes are filled with a hydraulic fluid for heat exchange.

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