KR20180080539A - Sensor for detecting pressure - Google Patents

Abstract

According to an embodiment of the present invention, disclosed is a heating module for generating a high temperature which comprises: a plurality of heating rods; and a plurality of porous heat radiation pins arranged between the plurality of heating rods.

Description

TECHNICAL FIELD [0001] The present invention relates to a heat generating module and a heater including the heat generating module.

Embodiments relate to a heat generating module and a heater including the heat generating module.

The automobile includes an air conditioner for providing thermal comfort in the room, for example, a heating device for performing heating through a heater, and a cooling device for performing cooling through the refrigerant circulation.

In the case of a general internal combustion engine vehicle, since a large amount of waste heat is generated from the engine, it is easy to secure heat required for heating from the engine. On the other hand, in the case of an electric vehicle, there is less heat generated than in an internal combustion engine vehicle, and there is also a problem that heating for a battery is also required.

Accordingly, the electric vehicle requires a separate heating device, and it is important to increase the energy efficiency of the heating device.

The embodiment provides a heat generating module and a heater that generate a high temperature.

Also provided is a heat generating module and a heater that provide an appropriate pressure drop.

In addition, it provides a heating module and a heater that are lightweight and prevent environmental pollution.

A heat generating module according to an embodiment of the present invention includes a plurality of heating rods; And a plurality of radiating fins disposed between the plurality of heating rods and porous.

The porosity of the radiating fin may be 10 ppi (pre per inch) to 100 ppi.

The porosity of the radiating fin may be 50 ppi.

The heating rod may include at least one of Al ₂ O ₃ , Si ₃ N ₄ , Al ₂ O _3, and ZrO ₂ .

The heating rod may further include a heating element.

The heating element may include at least one of CNT and Ag.

The radiating fin may include at least one of Al, Cu, Ni and Ag.

And a coupling member disposed at one end of the heat radiating fin and the heating rod to connect the radiating fin to the heating rod.

A heater according to an embodiment of the present invention includes a power module; And a heat generating module electrically connected to the power module, wherein the heat generating module includes: a plurality of heating rods; And a plurality of heat-radiating fins disposed between the plurality of heating rods and porous.

Another heating system according to an embodiment of the present invention includes: a passage through which air flows; A supply portion for introducing air; An exhaust unit for exhausting air to the room of the moving means; And a heater disposed between the air supply unit and the exhaust unit in the flow path to heat air, the heater comprising: a power module; And a heating module electrically connected to the power module, wherein the heating module comprises: a plurality of heating rods; And a plurality of heat-radiating fins disposed between the plurality of heating rods and porous.

According to the embodiment, it is possible to manufacture a heat generating module and a heater that generate a high temperature.

It is also possible to produce a heat generating module and a heater which provide an appropriate pressure drop.

In addition, it is possible to manufacture a heating module and a heater that are lightweight and prevent environmental pollution.

The various and advantageous advantages and effects of the present invention are not limited to the above description, and can be more easily understood in the course of describing a specific embodiment of the present invention.

1 is a perspective view of a heater according to an embodiment,
2 is a plan view of the heat generating module according to the embodiment,
Figs. 3 and 4 are enlarged photographs of surfaces of copper and aluminum-containing radiating fins when the porosity is different,
5 is an enlarged view of a portion A in Fig. 2,
6 and 7 are views showing various structures of the heat generating module,
8 is a conceptual diagram showing a heating system according to an embodiment.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not 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 as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

FIG. 1 is a perspective view of a heater according to an embodiment, and FIG. 2 is a plan view of a heat generating module according to an embodiment.

Referring to FIG. 1, a heater 1000 according to an embodiment includes a case 100, a heat generating module 200, and a power module 300.

The case 100 may be disposed outside the heater 1000. The case 100 may be configured to enclose the heat generating module 200 accommodated in the case 100 as an external member of the heater 1000. The power module 300 may be disposed on one side of the case 100. The case 100 may be coupled to the power module 300.

A lower portion of the case 100 may include a receiving portion for coupling with the power module 300. For example, the case 100 and the power module 300 may be coupled to each other through a pincer coupling. However, the present invention is not limited to these methods.

The case 100 may have a hollow block shape. The case 100 may include a first side and a second side. Here, the plurality of inlets may be disposed on the first surface. Thereby, fluid can flow into the first surface. Here, the fluid is a medium for transferring heat, for example, air. However, it is not limited to this kind.

Further, the plurality of inlets may be disposed in alignment with a predetermined row on the first surface. The length of the inlet may vary in the first direction (X-axis direction), but is not limited to this shape.

The plurality of outlets may be disposed on the second surface. The fluid introduced through the first side can be heated from the heat generating module 200 inside the case 100 and moved through the outlet of the second side. The outlet may also be arranged in alignment with a predetermined row on the second surface. It can also be arranged to correspond to a plurality of inlets.

Thereby, the fluid introduced through the inlet port can be smoothly discharged through the outlet port. And the fluid b- ₂ discharged through the outlet may be higher in temperature than the fluid b ₁ flowing into the inlet.

In addition, the length of the plurality of outlets in the first direction (X-axis direction) may vary, and is not limited to this shape.

The heat generating module 200 may be disposed inside the case 100. The heat generating module 200 may be electrically connected to the power module 300 disposed at one side of the case 100. The heat generating module 200 may generate heat by using the power supplied from the power module 300.

The power module 300 may be disposed on one side of the case 100. For example, the power module 300 may be disposed under the case 100 to support the case 100 and the heat generating module 200. In addition, the power module 300 can be coupled to the case 100.

The power module 300 may be electrically connected to the heat generating module 200 to supply power to the heat generating module 200. One side of the power module 300 may be connected to an external power supply.

The mass air flow (MAF) of the heater 1000 according to the embodiment may be 300 kg / h.

2, the heat generating module 200 includes a plurality of heating rods 210, heat dissipation fins 220, a coupling member 230, a first gasket 240, and a second gasket 250 can do.

The heating rod 210 may be disposed inside the case 100 as a heat generating portion. The heating rod 210 may include an electrode terminal. The electrode terminal (not shown) may be disposed at one end of the heating rod 210. The heating rod 210 may receive power from the power module 300 through an electrode terminal (not shown) to perform heat generation. The number of the heating rods 210 may be plural, but is not limited to this number.

The plurality of heating rods 210 may be spaced apart by a predetermined distance. A plurality of radiating fins 220 may be disposed between the plurality of heating rods 210.

The heating rod 210 and the radiating fin 220 are connected to each other so that heat generated in the heating rod 210 can be provided to the radiating fin 220. Thus, the fluid passing through the heating rod 210 and the heat dissipation fin 220 can be heated to increase the temperature. For heat transfer, a thermally conductive member (not shown) may be disposed between the heating rod 210 and the radiating fin 220. The thermally conductive member (not shown) may include, but is not limited to, conductive silicon.

The heating rod 210 may include a ceramic substrate 214 and heat dissipation plates 212 and 216.

The ceramic substrate 214 may be disposed between the plurality of heat dissipation plates 212 and 216. The heat dissipation plates 212 and 216 can diffuse heat generated from the ceramic substrate 214.

At this time, the heat diffusion coefficients of the heat diffusion plates 212 and 216 and the ceramic substrate 214 may be the same or similar. For example, when the thermal expansion coefficient of the ceramic substrate 214 is 7 ppm / 占 폚, the thermal expansion coefficients of the heat diffusion plates 212 and 216 may be 7 ppm / 占 폚, respectively. Alternatively, the coefficient of thermal expansion of the heat dissipation plates 212 and 216 may be 0.8 ppm / ° C to 1.2 ppm / ° C with respect to the thermal expansion coefficient of the ceramic substrate 214. If the thermal expansion coefficients of the heat diffusion plates 212 and 216, the ceramic substrate 214 and the heat diffusion plates 212 and 216 are the same or similar, it is possible to prevent the ceramic substrate 214 from being damaged due to thermal expansion have. However, the present invention is not limited to this configuration, and the heating rod 210 may be formed of the ceramic substrate 214 without the heat diffusion plates 212 and 216.

Although not shown, the heat dissipation plates 212 and 216 and the ceramic substrate 214 and the ceramic substrate 214 and the heat dissipation plates 212 and 216 may be bonded by a bonding layer (not shown). At this time, the bonding layer (not shown) may include an active metal alloy including titanium (Ti), zirconium (Zr), or the like, or a metal oxide including copper oxide (CuO or Cu ₂ O). Alternatively, the bonding layer (not shown) may include at least one of aluminum oxide, aluminum nitride, silicon nitride, and silicon carbide. The bonding layer (not shown) reacts with the ceramic substrate 214 by heating and pressing so that the heat diffusion plates 212 and 216 and the ceramic substrate 214 and the ceramic substrate 214, (212, 216).

In addition, the ceramic substrate 214 may include a heating element therein. The heating element may include at least one of CNT and Ag. The heating element may be electrically connected to the electric terminal. The heating element can receive heat from the outside through the electric terminal.

It is exemplified that one ceramic substrate 214 is disposed between the plurality of heat dissipation plates 212 and 216, but the present invention is not limited thereto. A plurality of ceramic substrates 214 may be stacked and disposed between the plurality of heat dissipation plates 212 and 216.

The ceramic substrate 214 is a ceramic substrate containing a heating element and may include at least one of Al ₂ O ₃ , Si ₃ N ₄ , Al ₂ O _3, and ZrO ₂ .

The ceramic substrate 214 is light in weight compared with the PTC thermistor, free from heavy metals such as lead (Pb) components, emit far-infrared rays, and have a high thermal conductivity.

The radiating fins 220 may be disposed between the plurality of heating rods 210. The radiating fin 220 may be porous. The radiating fin 220 may include a plurality of pores P, including a porous material.

The air gap P of the radiating fin 220 can be variously controlled by the manufacturing method.

The radiating fin 220 may include at least one of Al, Cu, Ni, and Ag, and may include an alloy or a metal compound.

The pores P may be spherical or cylindrical, but are not limited thereto. In addition, the pores P can be sized in the range of several nanometers to several millimeters.

The radiating fins 220 can be formed through a micro casting technique including an electrolytic plating method, electroless plating, metal deposition technique, and the like.

For example, the heat dissipation fin 220 may be formed by a chemical solution containing at least one of Al, Cu, Ni and Ag through precipitation or deposition.

The heat dissipation fin 220 may further include a heat treatment process or an annealing process to densify the crystal structure, but the present invention is not limited thereto.

In addition, the radiating fin 220 may be formed through chemical dissolution or etching, and a sacrificial layer etching process may be applied.

According to this manufacturing method, the heat radiating fins 220 may have various porosities. Here, the porosity may be a ratio of the volume occupied by the air gap P in the entire volume of the radiating fin 220.

The radiating fin 220 may have a porosity of 10 ppi (pre per inch) to 100 ppi. Preferably, the porosity of the radiating fin 220 may be 50 ppi.

Table 1 below shows the heater temperature and pressure drop according to the porosity of the radiating fin 220.

Porosity (ppi) Heater temperature (캜) Pressure drop (%) Comparative Example 1 Less than 0 ~ 10 10 4 Example 1 10 30 12 Example 2 30 45 32 Example 3 50 62 48 Example 4 80 50 67 Example 5 100 43 78 Comparative Example 2 Above 100 10 90

Referring to Table 1, when the porosity is less than 0 to 10 ppi (Comparative Example 1) or when the porosity exceeds 100 ppi (Comparative Example 2), the heater temperature according to the radiating fin 220 may be 10 ° C. Here, the heater temperature means the temperature of the fluid delivered by the heater through the radiating fin 220.

As described above, there is a problem that when the porosity is less than 0 to 10 ppi or exceeds 100 ppi, it is difficult to provide heat above room temperature. In addition, since the temperature of the heat radiated through the radiating fin 220 is low, the rate of temperature rise for the introduced fluid may be low.

If the porosity exceeds 100 ppi, the pressure drop may be 90%. Here, the pressure drop means the ratio of the amount of fluid introduced per hour at the time of the inlet and the amount of fluid discharged per hour at the time of discharging after heat exchange occurs in the inlet fins 220. That is, the closer the pressure drop is to 100%, the more the incoming and outgoing amount per hour can be.

Accordingly, when the porosity exceeds 100 ppi, the amount of fluid discharged is similar to that of the introduced fluid, but the temperature of the heater is low, so that the fluid may not be sufficiently supplied with heat.

In the case where the porosity is 10 ppi to 100 ppi (Examples 1 to 5), the heater temperature may be 43 ° C or higher, and the pressure drop may be 12% to 78%.

3 and 4 are enlarged photographs of the surface of the heat dissipation fin 220 including copper and aluminum when the porosity is different. Fig. 3 is an enlarged photograph of the surface of the radiating fin 220 including copper, and Fig. 4 is an enlarged photograph of the surface of the radiating fin 220 including aluminum.

3 and 4, the porosity of the radiating fin 220 in the case of FIGS. 3 (a) and 4 (a) is 50 ppi and the porosity of the radiating fin 220 in the case of FIG. 3 (b) The porosity is 100 ppi. If the porosity of the radiating fin 220 is large, the amount of the fluid passing through the radiating fin 220 increases, and the pressure drop can be increased.

However, since the heater temperature is influenced by heat exchange between the heat dissipation fin 220 and the fluid, if the porosity is high, only a part of the fluid is heat-transferred, and sufficient heat transfer may not be performed to the entire fluid. In addition, if the porosity is low, the movement of the fluid per unit time is fast, so that the heat transfer from the radiating fin 220 to the fluid may not be properly transmitted.

Referring again to Table 1, when the porosity of the radiating fin 220 is 10 ppi to 100 ppi, the heater temperature may be 43 ° C or higher. That is, the heater according to the embodiment can provide a fluid at room temperature or higher. That is, heat transfer to the fluid can be appropriately made.

When the porosity of the radiating fin 220 is 50 ppi, the heater temperature may be the highest at 62 ° C. As described above, in the case where the porosity of the radiating fin 220 is 50 ppi, the heater of the embodiment can provide the highest temperature raising rate (占 폚 / min). In this case, the heat transfer to the fluid passing through the heat dissipation fin 220 can be made in the largest ratio.

The pressure drop may also be between 12% and 78%. Thereby, the movement of the fluid per unit time can perform heat transfer.

The radiating fin 220 of the embodiment is simpler in manufacturing process than the louver fin having a complicated manufacturing and assembling process, and may be porous and lightweight.

5 is an enlarged view of a portion A in Fig. Referring to FIG. 5, the heating rod 210 and the radiating fin 220 may be arranged to be in contact with each other. The number of the heating rods 210 contacting the one surface of the radiating fin 220 may be plural, but the number is not limited to this. The radiating fin 220 may include holes H at both ends thereof.

The coupling member 230 may be disposed at one end of the radiating fin 220 and the heating rod 210 to connect the radiating fin 220 to the heating rod 210. The coupling member 230 may be disposed at both ends of the radiating fin 220 and the heating rod 210 to partially cover the radiating fin 220 and the heating rod 210. In addition, the number of the coupling members 230 in the embodiment may be plural.

The coupling member 230 may be disposed to surround a portion of the hole H and the adjacent coupling member 230 may surround the remaining portion of the hole H. [ With such a configuration, the heating rod 210 and the radiating fin 220 can be fixedly coupled. However, the present invention is not limited to this structure, and the coupling member 230 may be integrally formed.

In addition, the coupling member 230 may be made of a heat-conductive material. For example, the coupling member 230 may include aluminum (Al), but is not limited thereto.

FIGS. 6 and 7 are views showing various structures of the heat generating module 200. FIG. Referring to FIG. 6, a fixing pin F may further be disposed on the heater. The number of the fixing pins F may be plural, but is not limited to the number.

Referring to FIG. 6, the fixing pin F may be arranged to surround the heater in the first direction (X-axis direction). The fixing pin F makes the heating rod 210 and the radiating fin 220 come into intimate contact with each other. With this configuration, the heat generated in the heating rod 210 can be transferred to the heat dissipation fins 220. Further, the fixing pin F can improve the structural stability of the heater.

Referring to FIG. 7, a coupling member 230 'for covering one end of the heating rod 210 and the radiating fin 220 in the second direction (Z-axis direction) may be disposed. The engaging member 230 'may have a cap shape, but is not limited thereto.

The coupling member 230 allows the radiating fins 220 and the heating rod 210 to be in perfect combination. The coupling member 230 'may be disposed between the heating rod 210 and the radiating fin 220 and the first gasket 240. The coupling member 230 'may be disposed between the heating rod 210 and the heat dissipation fin 220 and the second gasket 250.

The first gasket 240 may be disposed on one side of the case 100. The second gasket 250 may be located on the lower side of the inside of the case 100. The first gasket 240 and the second gasket 250 can be coupled to the case 100 by being pinched, glued or the like.

The first gasket 240 and the second gasket 250 may be provided with a plurality of first accommodating portions 241 and a second accommodating portion 251 spaced apart in the first direction (X-axis direction). The first gasket 240 may include a plurality of protruded first receiving portions 241. The second gasket 250 may include a plurality of protruding second receiving portions 251.

The plurality of first receiving portions 241 and the second receiving portions 251 may be disposed so as to correspond one-to-one with the plurality of heating rods 210. With this configuration, one side of the heating rod 210 can be inserted into the first accommodating portion 241. [ Further, the other side of the heating rod 210 can be inserted into the second accommodating portion 251.

However, the electrode terminal of the heating rod 210 may extend downward through the second accommodating portion 251. Therefore, the electrode terminal is exposed downward and can be electrically connected to the power module 300. However, the present invention is not limited to such a configuration, but can be connected to the power supply by various methods.

8 is a conceptual diagram showing a heating system according to an embodiment.

Referring to Fig. 8, the heating system 2000 of the present embodiment can be used for various moving means. Here, the moving means is not limited to a vehicle running on land, such as an automobile, and may include a ship, an airplane, and the like. Hereinafter, a case in which the heating system 2000 of the present embodiment is used in an automobile will be described as an example.

The heating system 2000 can be accommodated in an engine room of an automobile. The heating system 2000 may include an air supply unit 400, a flow path 500, an exhaust unit 600, and a heater 1000.

As the supply unit 400, various supply devices such as a blower fan and a pump may be used. The supply unit 400 moves the fluid outside the heating system 2000 to the inside of the flow path 500 described later and can move the fluid along the flow path 500.

The flow path 500 may be a passage through which the fluid flows. The supply unit 400 may be disposed at one side of the flow path 500 and the exhaust unit 600 may be disposed at the other side of the flow path 500. The oil line 500 can cooperatively connect the engine room and the interior of the vehicle.

As the exhaust part 600, a blade capable of opening and closing can be used. The exhaust part 600 may be disposed on the other side of the flow path 500. The exhaust part 600 can communicate with the interior of the automobile. Therefore, the fluid that has traveled along the flow path 500 can be introduced into the interior of the vehicle through the exhaust part 600.

The heater 1000 of the present embodiment described above can be used as the heater 1000 of the heating system 2000. Hereinafter, the description of the same technical idea will be omitted. The heater 1000 may be disposed in the form of a partition wall in the middle of the flow path 500. In this case, the front and rear sides of the heater 1000 may be the same or similar to the front and rear sides of the automobile. The cool fluid in the engine room that is supplied to the oil line 500 through the air supply unit 400 is heated while being transmitted through the heater 1000 from the front to the rear and then flows along the oil line 500 again and flows through the exhaust unit 600 It can be supplied indoors.

In addition, in the heater 1000 of the present embodiment, heat transfer can be caused by the heating element covered by the ceramic substrate, unlike the conventional PCT thermistor. The heat efficiency can be increased by utilizing the high calorific value of the heating element. In addition, the high heating value of the heating element can be covered with the ceramic having a high heat transfer rate, thereby achieving thermal stability and maintaining the thermal efficiency.

Furthermore, the heater 1000 of the present embodiment may be free from heavy metal materials such as lead (Pb), and may be lightweight.

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, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

100: Case
200: heating module
210: heating rod
212, 216: heat diffusion plate
214: Ceramic substrate
220: heat sink fin
230, 230 ': coupling member
240: first gasket
241:
250: Second gasket
251:
300: Power module
400:
500: Euro
600: exhaust part
1000: heater
2000: Heating system

Claims (10)

A plurality of heating rods; And
And a plurality of heat-radiating fins disposed between the plurality of heating rods and porous.
The method according to claim 1,
And a porosity of the radiating fin is 10 ppi (pre per inch) to 100 ppi.
3. The method of claim 2,
And the porosity of the radiating fin is 50 ppi.
The method according to claim 1,
Wherein the heating rod comprises at least one of Al ₂ O ₃ , Si ₃ N ₄ , Al ₂ O ₃ and ZrO ₂ .
The method according to claim 1,
Wherein the heating rod further comprises a heating element.
6. The method of claim 5,
Wherein the heating element includes at least one of CNT and Ag.
The method according to claim 1,
Wherein the heat dissipation fin includes at least one of Al, Cu, Ni, and Ag.
The method according to claim 1,
And a coupling member disposed at one end of the heat radiating fin and the heating rod to connect the radiating fin to the heating rod.
Power module; And
And a heat generating module electrically connected to the power module,
The heat-
A plurality of heating rods; And
And a plurality of heat radiating fins disposed between the plurality of heating rods and porous.
A passage through which air flows;
A supply portion for introducing air;
An exhaust unit for exhausting air to the room of the moving means; And
And a heater disposed between the air supply unit and the exhaust unit in the flow path for heating air,
The heater
Power module;
And a heat generating module electrically connected to the power module,
The heat-
A plurality of heating rods; And
And a plurality of heat radiating fins disposed between the plurality of heating rods and porous.

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