KR101828202B1 - Dual Heater with Low Heat Release - Google Patents

Abstract

According to an embodiment of the present invention, a dual heater with improved heat insulation performance comprises: a partition wall provided in the middle, and having a predetermined thickness; a heater A formed on one side based on the partition wall; and a heater B formed on the opposite side of the heater A. The heater A includes a first fin column A composed of a plurality of fins for generating heat by an electric element, and formed in a position closest to the partition wall. The heater B includes a first fin column B composed of the plurality of fins for generating heat by the electric element, and formed in a position closest to the partition wall. The first fin column A and the first fin column B are formed to be 1.3-1.6 times larger than the average fin pitch of a plurality of other fin columns A and B, and form a shear layer. Accordingly, the present invention can provide a lightweight small dual heater with improved heat insulation performance which effectively performs heat insulation, smoothly performs heat transfer over the whole heater, and is economical.

Description

Dual Heater with Low Heat Release Improved Heat Dissipation {

[0001] The present invention relates to a dual phase heat exchanger having improved thermal performance, and more particularly, to a heat exchanger which minimizes heat loss between double heaters, This technology relates to a dual heater with improved thermal performance.

The duality heater is intended for individual air conditioning of the driver's and passenger's seat in a manner that is commonly used in automotive heaters.

The Pitty seed heater is a heater that uses the temperature-resistance characteristics of the Petit seed material, whose resistance suddenly increases at high temperatures. That is, as the temperature increases, the resistance of the Petit seed material increases sharply, thereby disconnecting the power source, thereby securing safety. The Pitty seed heater is widely used as an auxiliary heater for automobiles because of its high safety.

As consumers' desire for thermal comfort has increased, individual air conditioning of the driver's seat and passenger's seat has become important. Separate heat exchangers are necessary for individual air conditioning, but they are mainly used for dividing one heat exchanger for space and cost. This is called a dual heater. A real problem with dual heaters is that heat transfer between the two heaters must be minimized. Heat transfer between divided heaters is heat loss from the viewpoint of using one heater.

In order to suppress the heat loss between the divided heaters, the interval of the divided heaters may be increased or the partitioning interface may be filled with a material having a low thermal conductivity. This is basically a way to suppress conduction heat transfer, which adds additional space and insulation, which increases cost and does not increase the heat sink effect.

There is a need to improve the structure by changing the arrangement and structure in such a dual heater to minimize the cost increase and to increase the heat shielding effect between the two heaters.

It is an object of the present invention to provide a structure for increasing the heat shielding effect between two heaters by changing the arrangement and structure in a dual heater to improve the structure.

Further, the problem can be solved by increasing the pin pitch of the fins adjacent to the partition wall of the double heater. The frequency of use of passenger cars shows that only one of the dual heaters operates at more than 70% of the time. And to provide a dual heater arrangement and a separation wall improvement structure that minimize the heat loss.

In order to achieve the above object, the present invention provides a dual heater having improved thermal performance, comprising: a partition wall having a predetermined thickness and being formed in the middle; A heater A formed on one side with respect to the separating wall; And a heater (B) formed on the opposite side of the heater (A), wherein the heater (A) comprises a plurality of fins which generate heat by an electric element, and a plurality And the heater B comprises a plurality of pinned columns B comprising a plurality of fins that generate heat by electrical elements and a first pinned column B located at a position closest to the separation wall, The first pinheat A and the pinheat B are formed to be 1.3 to 1.6 times larger than the average pin pitches of the other plurality of pinheat A and B, and form a shear layer.

In addition, the separation wall may include a vacuum tube provided therein.

The present invention provides a dual heater that is economical, lightweight, and small in the performance of a thermal barrier by efficiently performing thermal conduction without causing additional cost, facilitating the heat transfer of the heater as a whole, and improving the arrangement of the pin rows closest to the separation wall .

Further, it is possible to provide a double heater with improved heat shield performance, which can more effectively block the heat shielding between the dual heaters by forming a vacuum tube in the interior of the separation wall.

1 is a schematic view of a conventional double heater.
2 is a schematic diagram according to an embodiment of the present invention.
3 is an enlarged view schematically showing a pin arrangement according to an embodiment of the present invention.
4 is a schematic view according to a second embodiment of the present invention.
5 is a schematic view showing a further configuration of an insulating film in an embodiment of the present invention.
Figure 6 is a schematic diagram showing a further construction of a barrier wall in an embodiment of the invention.
7 is a schematic view showing a variable portion according to a third embodiment of the present invention.
8 is a graph showing the velocity distribution between the double heaters of the present invention.
9 is a graph showing the temperature distribution between the double heaters of the present invention.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted in an ideal or overly formal sense unless expressly defined in the present application Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 9 attached herewith.

)는 모두 같다. 한 개의 히터(200또는300)만 이용할 경우 히터의 너비방향(y 방향)으로 식각한 온도구배(온도 기울기)가 존재한다. 이는 너비방향(y 방향)으로 열손실을 초래한다. 열손실은 별도로 하더라도 두 히터(200,300)의 사용자의 설정온도가 다른 경우 각 승차자는 설정 온도와 다른 온도의 공기가 유입됨에 따라 불쾌감을 느낀다. 이러한 점을 방지하기 위하여 종래의 이중 히터(1)에서는 두 히터 히터A(200) 및 히터B(300) 사이에 분리벽(100)을 둔다. 분리벽(100)은 열손실을 줄이기 위하여 적정한 두께를 가지고 이격 해야 하며 단열을 위한 단열재의 설치가 필요하다. 분리벽(100)의 두께를 형성할 때는 체적과 비용의 증가를 초래한다.Fig. 1 is a schematic view showing a conventional double heater 1. Fig. In FIG. 1, the air flow direction is the x direction, the width direction adjacent to the two heaters 200 and 300 is the y direction, and the direction perpendicular to the two coordinates is the z direction. In order to effectively carry out the heat transfer, the pin columns 220 and 320 are formed in the z direction. The distance between the pins 2 in the conventional double heater 1, that is, the fin pitch (

) Are all the same. When only one heater 200 or 300 is used, there is a temperature gradient (temperature gradient) etched in the width direction (y direction) of the heater. This causes heat loss in the width direction (y direction). If the set temperature of the user of the two heaters 200 and 300 is different even if the heat loss is separately, each passenger feels uncomfortable due to inflow of air having a temperature different from the set temperature. In order to prevent this, the conventional double heater 1 has the partition wall 100 between the two heater heaters A 200 and the heater B 300. The separating wall 100 must be spaced apart with a proper thickness to reduce heat loss and it is necessary to install a heat insulating material for insulation. When the thickness of the separating wall 100 is formed, the volume and the cost are increased.

)를 증대하여 해결할 수 있다. This problem is caused by the fin pitches of the first pinheat A 210 and the first pinheat B 310 adjacent to the separating wall 100 between the two heaters A 200 and the heater B 300

) Can be increased.

FIG. 2 is a schematic view according to an embodiment of the present invention, and FIG. 3 is an enlarged view schematically showing a pin arrangement according to an embodiment of the present invention.

 Referring to FIGS. 2 to 3, a dual heater 1 with improved heat shield performance according to an embodiment of the present invention may include a separation wall 100, a heater A 200, and a heater B 300.

Specifically, the heater A (200) and the heater B (300) configured using the PTC element are similar in construction to the conventional dual heater (1).

That is, the heater A 200 and the heater B 300 may include a pinheat A 220 and a pinheat B 320, respectively. Each of the pin columns 220 and 320 may be formed of a plurality of pins 2 and may be formed in a zigzag shape.

In addition, the pinheat A 220 and the pinheat B 320 may include a first pinheat A 210 and a first pinheat B 310 that are formed adjacent to the separating wall 100, respectively.

)의 간격은 각 핀열(220,320)마다 모두 동일하게 구성된다.The fin pitch (?) Used in the conventional double heater 1

Are the same for each of the pin columns 220 and 320.

)는 나머지 핀열A(220) 및 핀열B(320)에 속한 핀피치(

)보다 1.3 내지 1.6배만큼 크게 형성될 수 있다. 이에따라 전단층이 형성될 수 있다. However, the pin pitches of the first pinheat A 210 and the first pinhear B 310 closest to the separation wall 100 according to the embodiment of the present invention

) Belong to the pin pitch A (220) and the pin pitch B (320)

) By 1.3 to 1.6 times larger than that of the first embodiment. So that a full monolayer can be formed.

)란, 핀(2)과 핀(2)사이의 간격을 일컫는다. Here,

Refers to the distance between the pin 2 and the pin 2.

)와 다른 핀열A(220) 및 핀열B(320)의 핀피치(

)를 다르게 구성 함으로써 히터A(200)와 히터B(300)가 개별적으로 사용될 때 서로 열을 빼앗아 열 손실을 발생시키는 것을 방지할 수 있으며, 경제적인 비용도 발생하지 않아 소비자 입장에서는 이로울 수 있다.In summary, the pin pitches of the first pinheat A 210 and the pinheight B 310

) And the pin pitches A (220) and B (320) of the pinheat A

It is possible to prevent the heat A 200 and the heater B 300 from taking heat away from each other when the heaters A 200 and B 300 are separately used to generate heat loss and economical cost is not generated, .

Hereinafter, a dual heater 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The performance tests (flow characteristics and convective heat transfer characteristics) of the dual heater (1) and the comparative example with improved thermal performance were used. It is to be understood, however, that these examples are provided so that the scope of the present invention is not limited thereto.

Example 1) A dual heater formed with the pin pitches of the first pin string A and the first pin string B larger than the remaining pin strings A and B by 1.3 to 1.6

Comparative Example) Conventional double heater

Experimental Example 1) Performance Test-1 (Flow Characteristics)

Experimental Example 2) Performance Test-2 (Convection Heat Transfer Characteristics)

)의 약 1.45승에 반비례한다. 반면에 유동저항은 유속의 약 1.65승에 비례한다. 유속은 핀피치(

)에 약 1.14승에 비례한다. 한 예로 핀피치(

)가 1.3배 증가하면 유속은 약 1.35배 증가한다. 유속의 증가는 이중 히터(1)가 설치된 핀(2)의 온도가 낮아지는 효과를 유발한다. 실제 이중 히터(1) 실시조건에서 핀피치(

)의 증가는 핀(2)과 공기의 출구온도를 낮게 한다. 본 발명의 실시예에서 핀피치(

)를 1.3배 증가하면 출구의 유용도를 0.81배 낮게 하는 효과가 있다. 이는 인접하는 히터A(200)와 히터B(300)의 분리벽(100)에서 온도구배를 줄이는 효과를 얻을 수 있다. 따라서 자연스럽게 인접하는 두 히터A(200)와 히터B(300) 사이의 열손실을 줄일 수 있게 된다.The flow characteristics and the convective heat transfer characteristics of the fin 2 to be used will be described in detail with reference to the flow characteristics and convective heat transfer characteristics of the fin 2 in the above. According to various experiments and numerical calculations, in a normal heater condition, the flow resistance resistance is determined by the fin pitch

) Is inversely proportional to about 1.45 times. On the other hand, the flow resistance is proportional to about 1.65 times the flow rate. The flow rate is determined by the fin pitch

) To about 1.14 wins. For example,

) Increases by 1.3 times, the flow rate increases by about 1.35 times. The increase of the flow velocity causes the temperature of the pin 2 provided with the double heater 1 to be lowered. Actual double heater (1) Under the operating conditions, the pin pitch

Increases the temperature of the outlet of the pin 2 and the air. In the embodiment of the present invention,

) Is increased by 1.3 times, it is effective to lower the utility of the outlet by 0.81 times. This can reduce the temperature gradient in the partition wall 100 between the adjacent heater A 200 and the heater B 300. Therefore, it is possible to reduce the heat loss between the two heaters A (200) and (B) 300 that are adjacent to each other naturally.

)를 크게 할수록 온도구배를 줄이는 효과를 얻을 수 있으나 핀피치(

)가 증가함에 따라 유속이 과다하게 증가하게 된다. 이는 분리벽(100)에 인접한 제 1의 핀열(210,310)과 바로 다음에 위치한 핀열(220,320) 사이에 전단층(shear layer)을 형성한다. 적절한 전단층은 히터A(200)와 히터B(300) 사이의 열차단에 긍정적이다. 그러나 다수의 실시 예에 대하여 실험한 결과 핀피치(

)의 비가 1.6을 초과하는 경우에는 전단층 내의 와류로 인하여 유동소음이 점증하는 부작용을 초래한다. 따라서 분리벽(100)의 인접하는 제 1 핀열A 및 핀열B(210,310)의 핀피치(

)는 전체 핀(2)의 핀피치(

)의 1.3배 내지 1.6배가 적합하다. 이는 한 실시 예에 대한 것으로 히터와 핀의 종류에 따라 다소 가변 될 수 있다.In the embodiment of the present invention,

), The effect of reducing the temperature gradient can be obtained, but the fin pitch

), The flow velocity is excessively increased. This forms a shear layer between the first pinheat 210, 310 adjacent to the separation wall 100 and the next pinheat 220, 320. A suitable shear layer is positive for the heat shield between the heater A (200) and the heater B (300). However, as a result of experiments on a number of embodiments,

) Ratio exceeds 1.6, it causes adverse effects of increasing flow noise due to vortex in the shear layer. Therefore, the pin pitches of the adjoining first pinheat A and the pinheight B (210, 310) of the separating wall 100

) Of the pin 2 of the entire pin 2

Is 1.3 to 1.6 times as large as that of the above-mentioned resin. This is for one embodiment and may vary somewhat depending on the type of heater and pin.

Referring to FIG. 4, the double wall heater 1 according to the second embodiment of the present invention is improved in heat shielding performance. The partition wall 100 may include a vacuum tube 110 formed therein.

The vacuum tube 110 can prevent the heat loss more effectively because heat is difficult to transfer in a vacuum state when the heater A 200 and the heater B 300 are individually operated.

Vacuum refers to a space in which no substance is present at all, but it is difficult to actually produce such a vacuum, and it indicates a low pressure of about 1/1000 mmHg or so. When the vacuum tube 110 is made of rubber, Because it is easy, it can be made of glass tube, metal, ceramics, etc., but it is preferable to fabricate glass tube which is strong against heat and has no gaps.

In addition, the first pinheat A 210 and the pinheat B 310 may include a heat insulating film 120 formed on one side to which a plurality of fins 2 are fixed.

The heat insulating film 120 may include a solar film, a PREMIER film, and specifically, the heat insulating film 120 will be described below with reference to FIG.

Solar film is to save heating cost and cooling cost. It protects the energy due to hot solar energy by preventing the rise of temperature due to hot solar energy in summer. In the present invention, when the heater A 200 and the heater B 300 of the dual heater 1 operate separately, the first pinheat A 210 and the pinheat B 310 may be used. If the heat insulating film 120 is used separately, it may be reasonable in cost.

Next, PREMIER film can be used for various purposes such as construction, safety, and crime prevention.

Since the effect is similar to the above-described solar film, the description is omitted.

6, the separation wall 100 of the dual heater 1 may further include a blocking wall 130 on both sides.

That is, by providing the blocking wall 130 at a position spaced apart from both sides of the separating wall 100, the effect of the heat shielding can be maximized.

It is preferable that the blocking wall 130 is formed to be 0.5 to 0.8 times smaller than the thickness of the separating wall 100 so as to be easily formed in the miniaturized double heater 1. [

Of course, the larger the thickness of the separating wall 100, the larger the blocking effect. However, since the separating wall 100 is once cut off and the blocking wall 130 is once again cut off, Will increase.

Therefore, if the blocking wall 130 is formed to be smaller than the thickness of the separating wall 100, the cost is minimized and the blocking effect is obtained.

7, which shows a configuration of a variable portion 150 of a dual heater 1 with improved thermal performance, according to a third embodiment of the present invention, May include a variable portion 150. The variable portion 150 may be formed by providing the corrugated member 151 in the middle of the partition wall 100 divided into two.

The wrinkle member 151 may be formed in an annular shape, a spiral shape, or may be made of a material such as rubber or zinc-iron plate, and is not limited thereto. For example, the wrinkle member 151 may be made of a material or a shape Is sufficient.

The variable portion 150 may include an electromagnet 152 or a piston device 154 formed on both sides of the separating wall 100.

There is an effect that the separating wall 100 is variable while the corrugated member 151 is operated by the electromagnet 152 or the piston device 154. [

Specifically, it can be operated by an electrical element. For example, when the automobile starts, the heater A 200 or the heater B 300 operates individually or simultaneously so that the electromagnet 152 or the piston device 154 operates, so that the separating wall 100 is variable So that the thickness of the separating wall 100 can be adjusted.

In the configuration, the electromagnet 152 may include a magnet 153 that can operate in conjunction.

In addition, the piston device 154 may be provided with a device such as a hydraulic pressure device or a pneumatic device.

Hereinafter, each variable system will be described in detail.

7 (a), the electromagnets 152 provided on both sides of the separation wall 100 are magnetically coupled to the first pin-type heaters A 210 and the pin- The corrugated member 151 of the separating wall 100 is interlocked with the separating wall 153 to vary the thickness of the separating wall 100 and maximize the effect of the heat blocking effect.

7 (b), a piston device 154 is provided between the two sides of the separation wall 100 and the first pinheat A 210 and the pinheat B 310, respectively, so that an electrical element The wrinkle member 151 is stretched through the piston movement, and the thickness of the separating wall 100 becomes thick, thereby providing a heat shielding effect.

)와 유량, 발열량 및 유동 소음의 관계 통상의 관련자가 쉽게 얻을 수 있는 자료가 아니며 고도의 경험과 실험에 의하여 얻을 수 있은 발명이다.In another embodiment of the present invention, in the dual heater 1, the first pinheat A 210 and the pinheight B 310 of the pin 2 for heat conduction between the heater A 200 and the heater B 300, However, this is not preferable because heat generation due to the heater 1 is caused. Or heat insulating material or heat insulating material having a low thermal conductivity can be used, but this is also not preferable because it requires additional cost and space. Accordingly, it is apparent that the embodiments of the present invention through various attempts are the best way to solve the problem without further cost and heat loss in solving the problem. Also,

) And flow rate, calorific value, and flow noise. This is not an easily obtainable data for the ordinary person concerned, but an invention obtained by highly experienced and experienced experiment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

: 핀피치
100 : 분리벽
110 : 진공관
120 : 단열필름
130 : 차단벽
150 : 가변부
151 : 주름부재
152 : 전자석
153 : 마그네틱
154 : 피스톤장치
200 : 히터A
210 : 제 1 핀열A
220 : 복수 개의 핀열A
300 : 히터B1: Double heater
2: pin
3: empty space

: Fin pitch
100: separating wall
110: Vacuum tube
120: Adiabatic film
130:
150:
151: Crease member
152: electromagnet
153: Magnetic
154: Piston device
200: heater A
210: First Pincide A
220: a plurality of pinched A
300: heater B

Claims (8)

In a dual heater with improved thermal performance,
A partition wall having a predetermined thickness in the middle;
A heater A formed on one side with respect to the separating wall;
And a heater (B) configured on the opposite side of the heater (A)
The heater A
And a plurality of pinheats A comprising a plurality of fins which are generated by an electric element and which comprise a first pinheat A arranged at a position closest to the separating wall,
The heater B
And a plurality of pin columns (B) comprising a plurality of pins that generate heat by an electrical element, and including a first pin column (B) arranged at a position closest to the separation wall,
The first pinheat A and the first pinheat B are formed to be 1.3 to 1.6 times larger than the average pin pitch of the other plurality of pinheat A and B,
And a shear layer is formed in accordance with a fin pitch of the first pin string (A) and the first pin string (B).
The method according to claim 1,
Wherein the separating wall comprises:
A dual heater with improved heat sink performance, including a vacuum tube configured on the inside.
The method according to claim 1,
The first pinheat A and the pinheight B may be,
And a heat insulating film formed on a side where the plurality of fins are fixed and opposed to the separating wall.
The method of claim 3,
Wherein the heat insulating film comprises:
Double heater with improved thermal performance including solar film, PREMIER film.
The method according to claim 1,
Wherein the separating wall comprises:
Further comprising a barrier wall spaced apart from both sides by a predetermined distance.
6. The method of claim 5,
The blocking wall
Wherein the thickness of the partition wall is 0.5 to 0.8 times smaller than the thickness of the partition wall.
The method according to claim 1,
And a variable portion formed at one end of the separating wall to separate the separating wall in two and vary the thickness.
8. The method of claim 7,
The variable-
A wrinkle member,
Wherein the corrugated member is operated by an electromagnet or a piston device provided on both sides of the partition wall.

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