KR101955962B1 - Heater - Google Patents

Abstract

The heater includes a first heat generating body, a second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction, a third heat generating body adjacent to the second heat generating body in the second direction, A first portion extending in one direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction, and a first portion extending in the first direction, the first portion being disposed between the first heating body and the second heating body, And a first electrode extending parallel to the first portion and contacting the third heating body and a connection portion connecting the first portion and the second portion and extending in the second direction.

Description

Heater {HEATER}

The present invention relates to a heater, and more particularly, to a heater including a heating body including a ceramic and a carbon conductor and having an efficient structure.

As interest in environmentally friendly energy has increased, development of eco-friendly vehicle-related parts such as electric vehicles and fuel cell vehicles has been actively carried out. Since such an environmentally friendly vehicle is not equipped with an engine, it is not possible to realize heating using the waste heat of the engine. Therefore, a separate heater capable of stably heating by using electric energy is needed. Further, in the case of a diesel engine, it takes a considerable time to heat the heat exchanging medium for cooling the engine at the initial start of the automobile, and a separate heater is required.

Generally, as a heating device for a vehicle, a heater using a PTC thermistor (Positive Temperature Coefficient Thermistor), which is less susceptible to fire and can be used semi-permanently, is used, and the manufacturing cost of the conductive ceramic, . In addition, there is a problem in that the structure of the heater is complicated and the manufacturing cost is high, which requires an overheat prevention circuit separately configured for the temperature control of the heater.

Korean Patent No. 10-1479070

Accordingly, it is an object of the present invention to provide a heater which is simple in structure, light in weight, improved in strength, reduced in manufacturing cost, and has an efficient structure.

According to an aspect of the present invention, there is provided a heater including a first heat generating body, a second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction, And a third portion that extends in the first direction and is in contact with the first heat generating body, a second portion that extends in parallel with the first portion and that extends in parallel with the second heat generating body and the third heat generating body, A first electrode disposed between the heat generating body and a connection portion connecting the first portion and the second portion and extending in the second direction; and a second electrode extending in the first direction, A first portion disposed between the body and the second heat generating body, a second portion extending parallel to the first portion and in contact with the third heat generating body, and a second portion connecting the first portion and the second portion, Extending in the direction A first electrode including an associated.

In one embodiment of the present invention, the first to third heating bodies may be integrally formed of a mixture of ceramic and carbon conductor. The ceramics may include a structural ceramic that is not conductive. The carbon conductor may include at least one of carbon, carbon nanotube, and graphene.

In one embodiment of the present invention, each of the first to third heat generating bodies may include a plurality of first to third heat generating bodies each extending in the second direction, in a third direction perpendicular to the first and second directions, And slit-shaped openings passing through the heat generating bodies may be formed.

In one embodiment of the present invention, the heater further comprises a first electrical terminal electrically connected with the first portion of the first electrode, and a second electrical terminal contacting the connection portion of the second electrode .

In one embodiment of the present invention, the heater may further include an overheating prevention portion disposed between the first electrical terminal and the first portion of the first electrode.

In one embodiment of the present invention, the overheat prevention unit may include a PTC device that is a barium carbonate-based switching device.

According to an embodiment of the present invention, the heat discharging unit may further include a heat discharging unit adjacent to the overheating preventing unit to discharge heat generated in the overheating preventing unit.

In one embodiment of the present invention, the heater includes a fourth heat generating body disposed adjacent to the third heat generating body in the second direction, and a first heat generating body contacting the fourth heat generating body and extending in the first direction, And a third electrode connected to the first portion and extending in the second direction and in contact with the extension of the first electrode. And the second portion of the second electrode may be disposed between the third heating body and the fourth heating body.

In one embodiment of the present invention, the heater includes a fourth heat generating body adjacent to the first heat generating body in the first direction, a fifth heat generating body adjacent to the second heat generating body in the first direction, 3, a sixth heating body adjacent to the heating body in the first direction, and a third electrical terminal electrically connected to the third heating body.

In one embodiment of the present invention, the heater includes a first portion extending in the first direction and in contact with the fourth heat generating body, a second portion extending in parallel with the first portion, the fifth heat generating body and the sixth heat A third electrode disposed between the body and a connection portion connecting the first portion and the second portion and extending in the second direction, and a third electrode extending in the first direction, A second portion extending parallel to the first portion and in contact with the sixth heating body, and a second portion extending between the first portion and the second portion, And a fourth electrode including a connection portion extending to the first electrode. The fourth electrode and the second electrical terminal may be in contact with each other.

In one embodiment of the present invention, the heater includes a coupling member for surrounding the edges of the first to third heating bodies to fix the first to third heating bodies and the first and second electric terminals, As shown in FIG.

In an embodiment of the present invention, the engaging member may include a first engaging member, a second engaging member, a third engaging member, and a fourth engaging member. The first engagement member may be adjacent to the third heat generating body in the second direction to receive a part of the third heat generating body. The second engagement member may be adjacent to the first heat generating body in the second direction to receive a part of the first heat generating body. The third engagement member may be adjacent to the first to third heat generating bodies in the first direction and may receive a part of the sides of the first to third heat generating bodies. The fourth engaging member may be adjacent to the first to third heat generating bodies in the first direction and may receive a part of the opposite side of the side surfaces of the first to third heat generating bodies.

In an embodiment of the present invention, an oxide film may be formed on the surfaces of the first to third heat generating bodies.

In one embodiment of the present invention, the heater is disposed at least one of the first to third heating bodies and two adjacent structures among the first and second electrodes, The conductive adhesive agent may further include a conductive adhesive agent.

According to another aspect of the present invention, there is provided a heater including a first heat generating body, a second heat generating body adjacent to the first heat generating body, a third heat generating body adjacent to the second heat generating body, A first electrode electrically connected to the first heat generating body and disposed between the second heat generating body and the third heat generating body, and a second electrode electrically connected to the third heat generating body, the first heat generating body and the second heat generating body And a second electrical terminal electrically connected to the first electrode and electrically connected to the second electrode, and a second electrical terminal electrically connected to the second electrode, to which external power is supplied .

In one embodiment of the present invention, when the external power is applied to the heater, the first electric terminal, the first electrode, the first heating body (or the second heating body or the third heating body) A current can flow in the order of the second electrode, the second electric terminal (or vice versa).

In one embodiment of the present invention, the heater may further include an overheat prevention unit including a PTC element disposed between the first electrical terminal and the first electrode.

According to embodiments of the present invention, the heater includes a plurality of heat generating bodies. After the heat generating bodies are manufactured, the heaters can be assembled using the heat generating bodies and the electrodes, electric terminals and joining members suitably according to the size of the heaters. Accordingly, the same heat generating body part can be applied to heaters of various sizes and capacities, so that the efficiency of the manufacturing process can be improved.

In addition, since the heat generating bodies of the heater are pressurized and fixed firmly by the first and second coupling members in the longitudinal direction (second direction) of the heater, the adhesion between the heat generating bodies and the electrodes Can be improved, and the electrical contact failure between the structures in the heater can be reduced.

In addition, since the heater has an excellent adhesion in the longitudinal direction (second direction) between the constituent elements of the heater regardless of the assembling position of each of the heat generating bodies, the quality deterioration due to defective electrical contact is minimized .

However, the effects of the present invention are not limited to the above effects, and may be variously extended without departing from the spirit and scope of the present invention.

1 is an exploded perspective view of a heater according to an embodiment of the present invention.
2 is a plan view showing a coupling relationship of main components of the heater of FIG.
3 is a plan view showing the main components of the heater of FIG.
Figs. 4A to 4C are enlarged plan views according to various assembling positions of the first heat generating body of the heater of Fig. 1; Fig.
5 is a plan view showing major components of a heater according to an embodiment of the present invention.
6 is a plan view showing major components of a heater according to an embodiment of the present invention.
7 is an exploded perspective view of a heater according to an embodiment of the present invention.
8 is an exploded perspective view of the overheat preventing rod of FIG.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

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

1 is an exploded perspective view of a heater according to an embodiment of the present invention. 2 is a plan view showing a coupling relationship of main components of the heater of FIG. 3 is a plan view showing the main components of the heater of FIG.

1 to 3, the heater includes a first electric terminal TM1, a heat emitting unit 500, an overheat preventing unit 400, a first heat generating body 110, a second heat generating body 120, The first electrode 310, the second electrode 320, the second electric terminal TM2, the first coupling member 210, the second coupling member 220, and the third coupling member (not shown) 230 and a fourth engagement member 240. [

The first, second, and third heat generating bodies 110, 120, and 130 may be sequentially arranged in a second direction D2 perpendicular to the first direction D1.

Each of the first to third heating bodies 110, 120, and 130 includes a ceramic and a carbon conductor. The ceramic may be a structural ceramic used for a structure or the like and not electrically conductive. The structural ceramics may include fine ceramics, alumina ceramics, zirconia ceramics, silicon carbide, and the like. For example, the ceramics may be alumina (Al ₂ O ₃ ) and silicon oxide (SiO ₂ ) as main components. In addition, the ceramic may further comprise other ancillary components. For example, the ceramic may further include iron oxide (Fe ₂ O ₃ ), potassium oxide (K ₂ O), and the like.

The carbon conductor may have conductivity. Accordingly, since the carbon conductive material is distributed throughout the first to third heating bodies 110, 120, and 130, the first to third heating bodies 110, 120, and 130 may have conductivity . The carbon conductor may include carbon, carbon nanotubes and / or graphene. The carbon may have a structure in which atoms forming a hexagonal structure are laminated. The carbon nanotubes may have a structure in which the hexagonal structure of the carbon single layer is cylindrical. The graphene may have a structure in which the hexagonal structure constituting the carbon is completely removed.

Each of the first to third heating bodies 110, 120, and 130 preferably includes about 60 to 95% by weight of the ceramic, and may include about 5 to 40% by weight of the carbon conductor . For example, carbon nanotubes are known to have excellent properties similar to those of copper in electrical conductivity and have a high strength of about 100 times that of steel in terms of strength. Graphene also has excellent properties in terms of electrical conductivity and strength. The electrical conductivity is about 100 times better than silicon and its strength is about 200 times stronger than steel. These carbon conductors have a lower specific gravity than aluminum, for example, and are lightweight and relatively inexpensive. Therefore, when these materials are mixed with ceramics in proper amount, very good characteristics can be obtained in terms of electrical conductivity and strength. The content of the ceramics and the carbon conductor may be determined in consideration of the price, specific gravity, weight, strength, etc. of the raw material. That is, when the content of the carbon conductor is less than 5% by weight, the specific resistance per unit area is too large and the electrical property as an electric heater is poor. When the content of the carbon conductor is 45% by weight or more, There is a problem of low strength. According to the above numerical range, it is possible to produce a high strength and lightweight heater having a strength of about a general structural ceramic and a low specific gravity.

Each of the first to third heat generating bodies 110, 120, and 130 may be integrally formed. That is, all the portions of the first heating body 110 may be physically connected. The first heat generating body 110 is provided with a first heat generating body 110 passing through the first heat generating body 110 in a first direction D1 and a third direction D3 perpendicular to the second direction D2, A plurality of slit-shaped openings 112 extending in the direction D2 may be formed. The second and third heat generating bodies 120 and 130 may be substantially the same as the first heat generating body 110.

The first electrode 310 may include a first portion 314, a second portion 316, and a connection 312. The first portion 314 may extend along the first direction D1. The second portion 316 may extend along the first direction D1 parallel to the first portion 314 and away from the first portion 314 in the second direction D2. The connection portion 312 connects the end of the first portion 314 and the end of the second portion 316 and may extend in the second direction D2.

The first portion 314 of the first electrode 310 may be disposed between the overheat preventing portion 400 and the first heating body 110. The second portion 314 of the first electrode 310 may be disposed between the second heat generating body 120 and the third heat generating body 130.

The second electrode 320 may include a first portion 324, a second portion 326, and a connection portion 322. The first portion 324 may extend along the first direction D1. The second portion 326 may extend along the first direction D1 in a direction parallel to the first portion 324 and away from the first portion 324 in the second direction D2. The connection portion 322 connects the end of the first portion 324 and the end of the second portion 326 and may extend in the second direction D2.

The first portion 324 of the second electrode 320 may be disposed between the first heat generating body 110 and the second heat generating body 120. The second portion 324 of the second electrode 320 may be disposed between the third heating body 130 and the first coupling member 210.

The overheat preventing unit 400 may be disposed between the first heating body 110 and the first electric terminal TM1. As the temperature increases, the resistance value of the overheat preventing unit 400 increases or decreases the current flowing toward the first to third heating bodies 110, 120, and 130 that constitute the heater, Can be prevented from being overheated. For example, the overheat preventing unit 400 may include a PTC device. The PTC element is characterized in that the electric resistance increases sharply when the temperature rises with a barium carbonate-based switching element, thereby preventing the heater from being overheated. The present invention is not limited to this, and when the temperature of the heater is raised to an appropriate level or higher, the first to third heat generating bodies 110, 120, and 130, respectively.

The first electrical terminal TM1 extends in the first direction D1 and includes a second portion TM1b disposed between the heat emitting portion 500 and the overheat preventing portion 400, And a first portion TM1a extending from one side of the first direction TM1b to the second direction D2. The first portion TM1a protrudes from the second coupling member 220 and may be connected to an external power source. For example, a driving voltage (or a ground voltage) may be applied to the first electric terminal TM1.

The second electrical terminal TM2 extends in the second direction D2 and may be electrically connected to the second electrode 320. [ The second electrical terminal TM2 may be disposed between the second electrode 320 and the fourth coupling member 240. [ One end of the second electric terminal TM2 protrudes from the second coupling member 220 and may be connected to an external power source. For example, a ground voltage (or a driving voltage) may be applied to the first electric terminal TM1.

The heat emitting portion 500 may be disposed in contact with the second portion TM1b of the first electric terminal TM1. The heat discharging part 500 may have a plurality of openings penetrating the heat emitting part 500 in the third direction D3 for efficient heat dissipation. The heat discharging unit 500 may partially discharge the heat generated from the overheat preventing unit 400 through the first electric terminal TM1. Since the overheat preventing part 400 can be prevented from being overheated by the heat emitting part 500, the overheating preventing part 400 operates in an appropriate temperature range, and the first to third heating bodies 400, ON / OFF can be controlled according to the heat generated by the heaters 110, 120, and 130.

That is, when the overheat preventing unit 400 includes a PTC device, a sufficient current is supplied to the first to third heat generating bodies 110, 120, and 130 so that the temperature of the overheat preventing unit 400 itself The current flowing to the first to third heating bodies 110, 120, and 130 is cut off or reduced when the temperature of the first heating body 400 rises to a specific temperature. At this time, the overheat preventing unit 400 itself is also overheated and has a high resistance value. Thereafter, even if the first to third heat generating bodies 110, 120 and 130 are sufficiently cooled, the overheat preventing unit 400 itself may not be able to be cooled in an overheated state. If the overheat preventing unit 400 is not adequately cooled, the overheating preventing unit 400 may not be able to supply the current to the heat generating bodies. However, The current is supplied to the first to third heat generating bodies 110, 120 and 130 again.

In another exemplary embodiment, the heat discharging portion 500 may be disposed to contact the overheating preventing portion 400. The heat discharging unit 500 may be disposed at various positions capable of emitting heat radiated from the overheating preventing unit 400.

The first coupling member 210 may be adjacent to the third heating body 130 in the second direction D2. The first coupling member 210 is formed with a coupling groove in which a part of the third heating body 130 can be received so that a part of the third heating body 130, 230 and the first engagement protrusions 242 of the fourth engagement member 240 can be received.

The second coupling member 220 may be adjacent to the first heating body 110 in the second direction D2. The second coupling member 220 is formed with a coupling groove 222 in which the heat discharging unit 500, the first electric terminal TM1, the overheat preventing unit 400, A part of the first heating body 110, a part of the second electric terminal TM2, a second coupling protrusion 234 of the third coupling member 230 and a second coupling protrusion 234 of the fourth coupling member 240, The engaging projection 244 can be received.

The third coupling member 230 may be adjacent to the first to third heat generating bodies 110, 120 and 130 in the first direction D1. The third engagement member 230 may extend in the second direction D2. The third engagement member 230 may include the first engagement protrusion 232 and the second engagement protrusion 234 formed at both ends of the second direction D2. The third coupling member 230 may receive part of the side surfaces of the connection part 312 and the first to third heating bodies 110, 120 and 130 of the first electrode 310, (310), and a receiving portion (236) for fixing the first to third heat generating bodies (110, 120, 130) may be formed.

The fourth coupling member 240 may be adjacent to the second and fourth heat generating bodies 120 and 140 in the first direction D1. The fourth engagement member 240 may extend in the second direction D2. The fourth engagement member 240 may include the first engagement protrusion 242 and the second engagement protrusion 244 formed at both ends of the second direction D2. The fourth joining member 240 may receive part of the side surfaces of the connecting portion 322 and the first to third heating bodies 110, 120 and 130 of the second electrode 320, And a receiving portion for fixing the first to third heat generating bodies 110, 120, and 130 may be formed.

The first to fourth coupling members 210, 220, 230 and 240 are coupled to each other so that the first to third heating bodies 110, 120 and 130, the first electrode 310, The electrode 320, the first electric terminal TM1, the second electric terminal TM2, the heat emitting unit 500, and the overheat preventing unit 400 can be firmly fixed. The first to fourth coupling members 210, 220, 230, and 240 may be formed of an insulating material.

The heater can be operated by supplying power to the first and second electric terminals TM1 and TM2. For example, when a driving voltage is applied to the first electric terminal TM1 and a ground voltage is applied to the second electric terminal TM2, a current flows through the first electric terminal TM1, 400, the first electrode 310, the first heating body 110 (or the second heating body 120 or the third heating body 130), the second electrode 320, And can flow through the second electric terminal TM2. Accordingly, the first to third first heating bodies 110, 120 and 130 generate heat and can function as a heater.

In the present embodiment, the heat generating bodies are divided into three parts. However, after the heat generating bodies of the same size are manufactured, the heat generating bodies and the electrodes, And the heater can be assembled using the joining members. Accordingly, the same heat generating body part can be applied to heaters of various sizes and capacities, so that the efficiency of the manufacturing process can be improved.

In addition, since the heat generating bodies of the heater are pressed and fixed firmly by the first and second coupling members 410 and 420 in the second direction D2, which is the longitudinal direction of the heater, The adhesion between the bodies and the electrodes is improved, and the electrical contact failure between the structures in the heater can be reduced.

Meanwhile, although not shown, the heater may further include a conductive adhesive or the like to improve the bonding force of the structures constituting the heater. The conductive adhesive may be applied to the first to third heating bodies 110, 120 and 130, the first and second electrodes 310 and 320, the overheat prevention part 400, Terminals TM1 and TM2, and the heat radiating part 500, so that the components can be firmly coupled to each other.

In addition, an oxide film may be formed on the surfaces of the first to third heat generating bodies 110, 120 and 130 so that the first to third heat generating bodies 110, 120 and 130 may be insulated from the outside. At this time, an oxide film is not formed or removed at the portions of the first to third heat generating bodies 110, 120, and 130 that are in contact with the first and second electrodes 310 and 320, The bodies 110, 120, and 130 and the first and second electrodes 310 and 320 may be configured to be electrically connected to each other.

At this time, the oxide film may heat-treat the surfaces of the first to third heat generating bodies 110, 120 and 130 to form an oxide film on the upper and lower surfaces. At this time, in the portion of the first to third heat generating bodies 110, 120, and 130 that are in contact with the first and second electrodes 310 and 320, the oxide film formed by the heat treatment is removed . Accordingly, the surface of the heater is electrically connected to the oxide film and the first to fourth coupling members 410, 420, and 430, except for the ends of the first and second electric terminals TM1 and TM2, , 440). ≪ / RTI >

Specifically, the first, second, and third heat generating bodies 110, 120, and 130 may include a raw material powder mixing step, a drying step, a forming step, a sintering step, a heat treatment step, and a polishing step.

In the raw material powder mixing step, a raw material powder is prepared by mixing the ceramic powder and the carbon conductor. The ceramic powder may be a structural ceramic used for forming a structure or the like, which is not electrically conductive. The carbon conductor may include carbon, carbon nanotubes and / or graphene. The carbon conductor may be provided in a powder form and mixed with the raw material powder.

The raw material powder preferably contains about 60 to 95% by weight of the ceramic powder and about 5 to 40% by weight of the carbon conductor. The content of the ceramic powder and the carbon conductor may be determined in consideration of the price, specific gravity, weight, and strength of the raw material.

Meanwhile, the raw material powder can be prepared by various methods. For example, the raw material powder may be obtained by mixing and crushing a ceramic and a carbon conductor.

In the drying step, the raw material powder is dried. For example, the raw material powder can be granulated (spheroidized) by using a spray dryer or the like.

In the molding step, the first to third heat generating bodies may be formed of the dried raw material powder. The first to third heat generating bodies can be formed by pressing the raw material powders by using a mold corresponding to the first to third heat generating bodies. For example, primary molding may be performed using a hydraulic press or the like, followed by secondary molding through cold isostatic pressing to obtain a uniform molding density.

In the sintering step, the raw powder formed from the first to fourth heat generating bodies can be sintered at a high temperature. For example, the hot-press sintering mold corresponding to the first to fourth heat generating bodies can be used to sinter at a high temperature in a vacuum or argon gas atmosphere.

The above steps may be performed in a vacuum state or an argon gas atmosphere to prevent oxidation of the raw material.

In the heat treatment step, heat treatment is performed on the first to fourth heat generating bodies to oxidize the surfaces of the first to third heat generating bodies. For example, the surfaces of the first to fourth heat generating bodies may be oxidized by heating the first to third heat generating bodies at about 400 ° C. to 800 ° C. for about 5 minutes to 15 minutes. Preferably, the first to third heating bodies are heated at about 600 degrees Celsius for about 10 minutes to oxidize the surface. The heating temperature and time in the heat treatment step can be appropriately adjusted according to the constituent components, size and shape of the first to third heat generating bodies to be heat treated, and the surface of the first to third heat generating bodies is oxidized, It may be a condition capable of forming an oxide film on the surface.

In the polishing step, a part of the side surfaces of the first to third heat generating bodies is polished to remove a part of the oxide film. Accordingly, the first and second electrodes can be electrically connected to the first to third heating bodies at the portion where the oxide film is removed.

Figs. 4A to 4C are enlarged plan views according to various assembling positions of the first heat generating body of the heater of Fig. 1; Fig.

Referring to FIGS. 1 and 4A, the first heating body 110 is assembled to the left to be in contact with the connecting portion 312 of the first electrode 310. A current flows from the connection portion 312 or the first portion 314 of the first electrode 310 to the connection portion 312 of the first electrode 310, Flows through the first portion 324 of the second electrode 320 to the second electric terminal TM2 through the first heating body 110 so that the heater can be normally operated.

1 and 4B, the first heating body 110 is spaced apart from the connecting portion 312 of the first electrode 310 and is disposed so as to be spaced apart from the second electric terminal TM2. Is shown. At this time, current flows from the first portion 314 of the first electrode 310 through the first heating portion 324 of the second electrode 320 through the first heating body 110, (TM2), the heater can be normally operated.

Referring to FIGS. 1 and 4C, the first heating body 110 is assembled to the right to be in contact with the second electric terminal TM2. A current flows from the first portion 314 of the first electrode 310 through the first heating body 110 to the second heating portion 110. In this case, even if the first heating body 110 is in contact with the second electric terminal TM2, The first portion 324 of the second electrode 320 and the second electric terminal TM2, so that the heater can be normally operated.

Meanwhile, the first to third heat generating bodies 110, 120, and 130 are manufactured in the same shape through the same process, but variations in size and shape may occur due to variations in the manufacturing process . However, since the heater according to the present embodiment is firmly fixed regardless of the position and size of the first, second, and third heat generating bodies 110, 120, and 130, and has an excellent electrical contact structure, Even when the size of the heat generating bodies is somewhat different, defects due to deterioration of bonding force or electrical contactability can be minimized.

4A to 4C, in the heater according to the present embodiment, even if there is some error in the assembling position of the heat generating bodies in the assembling process or a deviation occurs in the size between the plurality of heat generating bodies in the manufacturing process, It is possible to have a structure in which the contact property between the electrode and the heat generating body is not deteriorated.

5 is a plan view showing major components of a heater according to an embodiment of the present invention.

Referring to FIG. 5, the heater may be substantially the same as the heater of FIGS. 1 to 3, except that it further includes a fourth heating body 140 and a third electrode 330. Therefore, the repetitive description is simplified or omitted.

The heater includes a first electric terminal TM1, a heat emitting unit 500, an overheat preventing unit 400, a first heat generating body 110, a second heat generating body 120, a third heat generating body 130, The first electrode 310, the second electrode 320, the third electrode 330, the second electric terminal TM2, the first coupling member (see 210 in FIG. 1) (See 220 in FIG. 1), a third engagement member (see 230 in FIG. 1), and a fourth engagement member (see 240 in FIG. 1).

The fourth heat generating body 140 may be disposed adjacent to the third heat generating body 130 in the second direction D2. The fourth heat generating body 140 may be substantially the same as the first to third heat generating bodies 110, 120 and 130.

The third electrode 330 includes a first portion 336 contacting the fourth heating body 140 and extending in a first direction D1 and a second portion 332 connected to the first portion 336 and extending in the second direction D2 (Not shown). The connection portion 332 may contact the connection portion (refer to 312 in FIG. 2) of the first electrode 310. The second portion 320 of the second electrode 320 may be disposed between the third heat generating body 130 and the fourth heat generating body 140.

The first coupling member 210 may be adjacent to the fourth heat generating body 140 in the second direction D2. The first coupling member 210 may be formed with a coupling groove into which a part of the fourth heating body 140 may be received, and a part of the fourth heating body 140 may be received in the coupling groove. The structures of the heater can be firmly fixed by the first to fourth coupling members 210, 220, 230,

Meanwhile, although not shown, the heater may further include a conductive adhesive or the like to improve the bonding force of the structures constituting the heater.

According to the present embodiment, it is described that the heater includes four heat generating bodies 110, 120, 130, and 140 arranged in the second direction D2, and the heaters of FIGS. The case of including heat generating bodies has been described. In a similar manner, electrodes and heating bodies may be added to form a heater having a varying number of heating bodies.

6 is a plan view showing major components of a heater according to an embodiment of the present invention.

Referring to FIG. 6, the heater includes a fourth heating body 140, a fifth heating body 150, a sixth heating body 160, a third electrode 330, a fourth electrode 340, The heater may be substantially the same as the heater of FIGS. 1 to 3, except that the heater 600 further includes a second heat radiating part 700 and a third electric terminal TM3. Therefore, the repetitive description is simplified or omitted.

The heater includes a first electric terminal TM1, a heat emitting unit 500, an overheat preventing unit 400, a first heat generating body 110, a second heat generating body 120, a third heat generating body 130, 1) 310, a second electrode 320, a second electric terminal TM2, a first coupling member (see 210 in FIG. 1), a second coupling member (see 220 in FIG. 1) 230 of FIG. 1) and a fourth engagement member (see 240 of FIG. 1). The heater includes a third electric terminal TM3, a second heat releasing part 700, a second heat preventing part 600, a fourth heat generating body 140, a fifth heat generating body 150, A body 160, a third electrode 330, and a fourth electrode 340.

The third electric terminal TM3, the second heat radiation part 700, the second heat protection part 600, the fourth heat generation body 140, the fifth heat generation body 150, The heat generating body 160, the third electrode 330 and the fourth electrode 340 are connected to the first electric terminal TM1, the heat emitting unit 500, The first heating body 110, the second heating body 120, the third heating body 130, the first electrode 310, and the second electrode 320 may be formed of a material having high thermal conductivity, And may be substantially the same configuration.

The first to fourth coupling members may surround and fix the first to sixth heating bodies 110, 120, 130, 140, 150, and 160.

The present embodiment is an embodiment in which the heat generating bodies are extended so that the heater of FIG. 1 is symmetrical with respect to the second electric terminal. In a similar manner, the heat generating bodies of the heater may extend in the first direction D1. According to another exemplary embodiment, the second overheat preventing part 600 and the second heat releasing part 700 may be omitted if necessary.

7 is an exploded perspective view of a heater according to an embodiment of the present invention. 8 is an exploded perspective view of the overheat preventing rod of FIG.

Referring to FIGS. 7 and 8, the heater is substantially the same as the heater of FIGS. 1 to 3 except that it includes an overheat preventing portion 800 and a superheat preventing rod 800 which are integrally assembled in place of the first electric terminal. Therefore, repeated explanation is omitted.

The overheat prevention rod 800 includes a cover including a first cover 810 and a second cover 820, a first guide portion 830, a second guide portion 840, a first electric terminal TM1, And may include a plurality of PTC element parts (PTC) and a plurality of insulating parts INS.

The overheat preventing rod 800 may extend in the first direction D1.

The first cover 810 and the second cover 820 are electrically connected to the PTC element part PTC, the insulation part INS, the first electric terminal TM1, the first and second guide parts 830 , 840 can be received. The first cover 810 is coupled with the second cover 820 to electrically connect the PTC unit PTC, the insulation unit INS, the first electrical terminal TM1, (830, 840). The covers 810 and 820 may be formed of metal. For example, the cover 810, 220 may comprise aluminum.

The first guide portion 830 is disposed between the first electric terminal TM1 and the first cover 810 and the second guide portion 840 is disposed between the first electric terminal TM1 and the first cover 810. [ 2 cover 820. In this embodiment, The first guide portion 830 and the second guide portion 840 may be coupled to each other to surround the first electric terminal TM1. The first and second guide portions 830 and 840 may be formed of an insulating material not electrically conducting.

A first opening 832 and a second opening 834 may be formed in the first guide portion 830. The insulator INS may be accommodated in the first opening 832 and the PTC element PTC may be housed in the second opening 834. Accordingly, the PTC element portion PTC can directly contact the first electric terminal TM1 and the first cover 810.

A third opening 842 and a fourth opening 844 may be formed in the second guide portion 840. The PTC element portion (PTC) may be accommodated in the third opening 832, and the insulating portion INS may be accommodated in the fourth opening 834. The PTC element portion PTC can directly contact the first electrical terminal TM1 and the second cover 220. [

The plurality of insulation portions INS and the plurality of PTC device portions PTC may be alternately arranged along the first direction D1.

One end of the first electrical terminal TM1 may be exposed to the outside of the cover and extend in the second direction D2. The first electrical terminal TM1 may include a metal. For example, the first electrical terminal TM1 may include copper.

The PTC element part (PTC) may include a PTC element in the same manner as the overheat prevention part (see 400 in FIG. 1) of FIG. The insulating portion INS may be formed of an insulating material not electrically conducting.

The heat discharging unit 500 may be disposed in contact with the overheating preventing rod 800 in the second direction D2 to prevent the overheating preventing rod 400 itself from overheating.

The superheat prevention rod 400, which controls the ON / OFF state according to the heat generated by the heat generating bodies 110, 120 and 130 of the heater, has an assembly structure, so that the assembling property of the heater can be further improved.

According to embodiments of the present invention, the heater includes a plurality of heat generating bodies. After the heat generating bodies are manufactured, the heaters can be assembled using the heat generating bodies and the electrodes, electric terminals and joining members suitably according to the size of the heaters. Accordingly, the same heat generating body part can be applied to heaters of various sizes and capacities, so that the efficiency of the manufacturing process can be improved.

In addition, since the heat generating bodies of the heater are pressurized and fixed firmly by the first and second coupling members in the longitudinal direction (second direction) of the heater, the adhesion between the heat generating bodies and the electrodes Can be improved, and the electrical contact failure between the structures in the heater can be reduced.

In addition, since the heater has an excellent adhesion in the longitudinal direction (second direction) between the constituent elements of the heater regardless of the assembling position of each of the heat generating bodies, the quality deterioration due to defective electrical contact is minimized .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

110: first heating body 120: second heating body
130: third heating body 210: first coupling member
220: second engagement member 230: third engagement member
240: fourth coupling member 310: first electrode
320: second electrode 400:
500: heat releasing part TM1: first electric terminal
TM2: second electric terminal

Claims (18)

A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
Each of the first to third heat generating bodies has a slit-shaped opening extending through the first to third heat generating bodies in a third direction extending in the second direction and perpendicular to the first and second directions, Are formed. delete delete delete delete A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
A first electrical terminal electrically connected to the first portion of the first electrode;
A second electrical terminal in contact with the connection portion of the second electrode; And
Further comprising an overheat preventing portion disposed between the first electrical terminal and the first portion of the first electrode,
Wherein the overheat prevention portion includes a PTC element that is a barium carbonate-based switching element. A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
A first electrical terminal electrically connected to the first portion of the first electrode;
A second electrical terminal in contact with the connection portion of the second electrode; And
Further comprising an overheat preventing portion disposed between the first electrical terminal and the first portion of the first electrode,
Further comprising: a heat releasing portion adjacent to the overheating preventing portion to emit heat generated in the overheating preventing portion. A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
A first electrical terminal electrically connected to the first portion of the first electrode; And
And a second electrical terminal in contact with the connection portion of the second electrode,
A fourth heat generating body disposed adjacent to the third heat generating body in the second direction; And
Further comprising a first portion contacting the fourth heating body and extending in the first direction and a third electrode connected to the first portion and extending in the second direction and in contact with the connection portion of the first electrode,
And the second portion of the second electrode is disposed between the third heating body and the fourth heating body. A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
A first electrical terminal electrically connected to the first portion of the first electrode; And
And a second electrical terminal in contact with the connection portion of the second electrode,
A fourth heat generating body adjacent to the first heat generating body in the first direction;
A fifth heat generating body adjacent to the second heat generating body in the first direction;
A sixth heat generating body adjacent to the third heat generating body in the first direction; And
And a third electrical terminal electrically connected to the third heat generating body. 10. The method of claim 9,
A first portion extending in the first direction and in contact with the fourth heat generating body, a second portion extending parallel to the first portion and disposed between the fifth heat generating body and the sixth heat generating body, A third electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the fourth heat generating body and the fifth heat generating body, a second portion extending parallel to the first portion and in contact with the sixth heat generating body, And a fourth electrode connecting the second portion and the connection portion extending in the second direction,
And the fourth electrode and the second electrical terminal are in contact with each other. A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Wherein the first to third heating bodies are integrally formed of a mixture of a ceramic and a carbon conductor, and the ceramic includes a structural ceramic having no conductivity, and the carbon conductor includes at least carbon, carbon nanotube, and graphene Including either one,
An overheat preventing rod electrically connected to the first portion of the first electrode; And
And a second electrical terminal in contact with the connection portion of the second electrode,
Wherein the overheat preventing rod includes a first electrical terminal, a cover surrounding the first electrical terminal, and a PTC element portion that is a barium carbonate-based switching element disposed between the cover and the first electrical terminal, Is exposed to the outside of the cover. The method according to claim 1,
Further comprising an engaging member surrounding the edges of the first to third heat generating bodies to fix the first to third heat generating bodies and the first and second electric terminals. A first heating body;
A second heat generating body adjacent to the first heat generating body in a second direction perpendicular to the first direction;
A third heat generating body adjacent to the second heat generating body in the second direction;
A first portion extending in the first direction and in contact with the first heat generating body, a second portion extending parallel to the first portion and disposed between the second heat generating body and the third heat generating body, A first electrode connected to the second portion and extending in the second direction; And
A first portion extending in the first direction and disposed between the first heat generating body and the second heat generating body, a second portion extending in parallel with the first portion and in contact with the third heat generating body, And a second electrode connected to the second portion and extending in the second direction,
Further comprising an engaging member surrounding the edges of the first to third heat generating bodies to fix the first to third heat generating bodies and the first and second electric terminals,
Wherein the engaging member includes a first engaging member, a second engaging member, a third engaging member, and a fourth engaging member,
Wherein the first engagement member is adjacent to the third heat generating body in the second direction and receives a part of the third heat generating body,
Wherein the second engagement member is adjacent to the first heat generating body in the second direction to receive a part of the first heat generating body,
The third engagement member is adjacent to the first to third heat generating bodies in the first direction and receives a part of the side surfaces of the first to third heat generating bodies,
Wherein the fourth engagement member is adjacent to the first to third heat generating bodies in the first direction and receives a part of the opposite side surfaces of the first to third heat generating bodies. The method according to claim 1,
And an oxide film is formed on surfaces of the first to third heat generating bodies. The method according to claim 1,
And a conductive adhesive agent disposed on at least one of the first to third heat generating bodies and between two adjacent ones of the first and second electrodes to improve the bonding force of the respective structures. Heater. A first heating body;
A second heat generating body adjacent to the first heat generating body;
A third heat generating body adjacent to the second heat generating body;
A first electrode electrically connected to the first heat generating body and disposed between the second heat generating body and the third heat generating body;
A second electrode electrically connected to the third heat generating body and disposed between the first heat generating body and the second heat generating body;
A first electrical terminal electrically connected to the first electrode and to which external power is applied; And
And a second electrical terminal electrically connected to the second electrode and to which external power is applied,
When the external power is applied, the first electric terminal, the first electrode, the first heating body (or the second heating body or the third heating body), the second electrode, (Or vice versa)
And a PTC element disposed between the first electrical terminal and the first electrode.

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