WO2019056162A1 - Electric film and electric iron - Google Patents

Abstract

An electric heating film and an electric iron. The electric heating film comprises a serial film set (210), a parallel film set (220), and an electric wire film set (230) electrically connected to the serial film set (210) and the parallel film set (220). The serial film set (210) comprises multiple connecting conductive films (212) and multiple serial resistance films (211). Each connecting conductive film (212) is used for connecting a pair of adjacent serial resistance films (211). The parallel film set (220) comprises multiple parallel resistance films (221) disposed in parallel connection. The electric wire film set (230) comprises a positive electrode electric wire film (231) and a negative electrode electric wire film (232), and the serial film set (210) is electrically connected to the positive electrode electric wire film (231) and the negative electrode electric wire film (232) separately. Heat generated by the serial resistance films (211) and the parallel resistance films (221) is relatively-evenly distributed on a lower side plate surface (101), and is not concentrated at the middle position of the lower side plate surface (101), thereby reducing temperature differences among regions of the lower side plate surface (101).

Description

 Title of the invention: electric heating film and electric iron

 Technical field

 [0001] The present invention belongs to the technical field of electric irons, and more particularly to an electric heating film and an electric iron.

 Background technique

 [0002] The electric iron includes a bottom plate for flattening the fabric and a heating film connected to the bottom plate, and the front end of the bottom plate has a pointed structure, and the width of the bottom plate in the left-right direction is gradually decreased from the direction toward the rear, and the film is heated. The transparent semiconductor heating film is made and adhered to the lower side surface of the bottom plate, wherein the shape of the heating film is substantially similar to the shape of the bottom plate, and the heating film has a single, seamless, non-hollow structure, in the specific use process, The heat generated by the heating film is mainly concentrated in the middle position of the lower side plate surface, which causes uneven heating of the lower side plate surface and a large temperature difference.

 technical problem

 The present invention provides a heating film which is intended to solve the problem of uneven heating in the regions of the lower side plate surface and a large temperature difference.

 Problem solution

 Technical solution

 An electric heating film for heating and for use in an electric iron, the electric iron including a bottom plate for flattening a fabric, the front end of the bottom plate having a pointed structure, and the bottom plate having a lower side disposed downward a plate surface, the lower side plate surface is divided into a front side region on the front side or a rear side region on the rear side, and a width of the bottom plate in the left-right direction is gradually decreased along a direction from the rear to the rear, An electrothermal film is connected to the lower side surface, the electrothermal film includes a series film group for generating heat, a parallel film group for generating heat, and electrically connected to the series film group and electrically connected to the parallel film group Connected wire film set;

 [0005] The series film group is located in the front side region, and includes a plurality of connecting conductive films and a plurality of series resistance films arranged in series and spaced from left to right and used for heat generation, and the connecting conductive film is used for connecting the conductive film Connecting a pair of adjacent series resistance films;

[0006] The parallel film group is located in the rear side region, and includes a plurality of parallel resistance films arranged in parallel and used for heat generation, each of the series resistance films is arranged in a strip shape, and is extended from left to right, each Parallel resistance The membranes are spaced apart along the direction from the back to the rear;

[0007] The wire film group is located in the rear side region, and includes a positive electrode wire film and a negative electrode wire film which are both disposed in a strip shape and extend from the front to the rear, and the series film group is combined with the positive electrode film and The negative electrode wire film is electrically connected, and one end of any one of the series resistance films is electrically connected to the positive electrode wire film, and the other end is electrically connected to the negative electrode wire film.

[0008] Optionally, each of the series resistance films is disposed in a strip shape, and each of the series resistance films is extended in a front-rear direction, and each of the series resistance films is arranged at intervals from left to right.

[0009] Optionally, each of the series resistance films extends to edges of the front and rear sides of the front side region.

[0010] Optionally, each of the series resistance films is connected in a first position, and the connection conductive film is disposed in a circular arc shape.

[0011] Optionally, each of the series resistance films is equally spaced in a direction from left to right.

[0012] Optionally, each of the series resistance films extends to an edge of the front and rear sides of the front side region, and a resistance value of each of the parallel resistance films is gradually decreased from the front to the rear.

[0013] Optionally, each of the parallel resistance films is arranged indirectly along a direction from the rear to the rear.

[0014] Optionally, each of the series resistance films has at least one bending point on a path arranged from left to rear.

[0015] Optionally, the thickness of each of the series resistance films and the thickness of each of the parallel resistance films are the same.

[0016] Optionally, the positive electrode wire film and the negative electrode wire film respectively extend along edges of the left and right sides of the lower side plate surface.

 [0017] Optionally, the ratio of the length of the series membrane group in the front-rear direction to the length of the parallel membrane group in the front-rear direction is 1.2-2.

 [0018] Optionally, the positive electrode wire film and the negative wire film are conductive silver paste.

[0019] Optionally, each of the series resistance film and each of the parallel conductive surfaces are transparent semiconductor resistance films.

[0020] The present invention also provides an electric iron including a bottom plate for flattening a fabric, the bottom plate having a pointed end at a front end, the bottom plate having a lower side plate surface disposed downward, the bottom plate being in a left-right direction The upper width is gradually set in a direction from the rear to the rear, and the electric kettle further includes the above-described electric heating film.

 [0021] Optionally, the bottom plate is a bottom plate made of ceramic glass or crystallized glass.

 [0022] Optionally, the electric iron further comprises a protective film covering the heating film on the bottom plate and made of a transparent insulating material.

Advantageous effects of the invention Beneficial effect

 [0023] After the electric heating film is energized, each series resistance film and each parallel resistance film are separately heated, and any series resistance film or any parallel resistance film is a heat source, wherein the series film group is located on the lower side surface. The front side region, the series film group includes a plurality of series resistance films arranged in series and spaced from left to right and used for heat generation, the parallel film group is located at a rear side region of the lower side plate, and the parallel film group includes a plurality of parallel arrangement And a parallel resistance film extending from left to right and used for heating, so that heat sources or adjacent heat sources are distributed in each area of the lower side surface, and heat generated by each series resistance film and each parallel resistance film will be relatively It is distributed on the lower side surface, and is not concentrated only in the middle position of the lower side surface, thereby reducing the temperature difference between the respective areas of the lower side surface.

 Brief description of the drawing

 DRAWINGS

 1 is a schematic structural view showing a state of use of an electric heating film according to an embodiment of the present invention;

2 is a schematic circuit diagram of a state of use of an electric heating film according to an embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS:

[] [Table 1]

 Invention embodiment

 Embodiments of the invention

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, in which The same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

 [0028] In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical" The orientation or positional relationship of the indications such as "directly", "horizontal", "top", "bottom", "inside" and "outside" is based on the orientation or positional relationship shown in the drawings, for convenience of description of the present invention and simplified description. It is not intended to be a limitation or limitation of the invention.

 [0029] Embodiments of the present invention provide an electric heating film for heating and for use in an electric iron, and the electric iron includes a bottom plate 100 for flattening the fabric, the front end of the bottom plate 100 has a pointed structure, and the bottom plate 100 has a downward facing The lower side surface 101, the lower side surface 101 is divided into a front side area on the front side or a rear side area on the rear side, and the width of the bottom plate 100 in the left-right direction is gradually reduced from the direction toward the rear. The electrothermal film is connected to the lower side surface 101.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, the electrothermal film includes a series membrane group 210 for heating, a parallel membrane group 220 for heating, and an electrical connection with the series membrane group 210 and a line film group 230 electrically connected to the parallel film group 220;

 [0031] The series film group 210 is located in the front side region, and includes a plurality of connection conductive films 212 and a plurality of series resistance films 211 arranged in series and spaced from left to right and used for heat generation, connecting the conductive films 212 for connection a pair of adjacent series resistance films 211;

[0032] The parallel film group 220 is located in the rear side region and includes a plurality of parallel resistance films 221 arranged in parallel and used for heat generation.

Each of the series resistance films 211 is disposed in a strip shape and extends to the left and right sides, and the parallel resistance films 221 are arranged at intervals from the direction to the rear;

[0033] The wire film group 230 is located at a rear side region, and includes a positive electrode wire film 231 and a negative electrode wire film 231 which are both disposed in a strip shape and extending from the front to the rear, and the series film group 210 is connected to the positive electrode wire film 231 and the negative electrode wire film. 231 is electrically connected, and one end of any series resistance film 211 is electrically connected to the positive electrode wire film 231, and the other end is electrically connected to the negative electrode wire film 231.

[0034] After the electric heating film is energized, each of the series resistance film 211 and each of the parallel resistance films 221 are separately heated, and any series resistance film 211 or any parallel resistance film 221 is a heat source, wherein, due to the series film group 210 Located below The front side region of the side plate surface 101, the series film group 210 includes a plurality of series resistance films 211 arranged in series and spaced from left to right and used for heat generation, and the parallel film group 220 is located at a rear side region of the lower side plate surface 101. The parallel film group 220 includes a plurality of parallel resistance films 221 arranged in parallel and extending from the left to the right and used for heat generation. Thus, the heat dissipation source or the adjacent heat source is distributed in each region of the lower side surface 101, and each series resistance film 211 and The heat generated by each of the parallel resistance films 221 will be relatively evenly distributed to the lower side surface 101, and will not be concentrated only at the intermediate position of the lower side surface 101, thereby reducing the temperature difference between the respective areas of the lower side surface 101. .

 [0035] In the above, since each of the series resistance film 211 and each of the parallel resistance films 221 is required to be used for heat generation, according to Joule's law, each of the series resistance films 211 and each of the parallel resistance films 221 needs to have a certain resistance value.

 [0036] Further, each of the series resistance film 211 and each of the parallel resistance films 221 are transparent semiconductor resistance films. Specifically, each of the series resistance films 211 and each of the parallel resistance films 221 are tin oxide (Sn02) films. Each of the series resistance film 211 and each of the parallel resistance films 221 are transparently disposed, which is beneficial to prevent each series resistance film 211 and each of the parallel resistance films 221 from blocking the bottom plate 100, wherein, in a specific production process, each series resistance film 211 and each parallel connection The resistive film 221 can be fabricated by a thin film process such as chemical vapor deposition, spray pyrolysis, and ion sputtering.

 [0037] In the above, the positive electrode wire film 231 and the negative electrode wire film 231 are only used for conduction, and the positive electrode wire film 231 and the negative electrode wire film 231 do not need to be heated, and the resistance values of the positive electrode wire film 231 and the negative electrode wire film 231 are also lower. Specifically, the positive electrode wire film 231 and the negative electrode wire film 231 are conductive silver pastes in which the silver material has high electrical conductivity characteristics, and heat generation of the positive electrode wire film 231 and the negative electrode wire film 231 can be effectively prevented. In addition, the silver material has a lower melting point and can be produced by a thin film process such as chemical vapor deposition, spray pyrolysis, and ion sputtering.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, each series resistance film 211 is disposed in a strip shape, and each series resistance film 211 is extended in the front-rear direction, and each series resistance film 211 is along from left to right. The right direction is spaced apart. Based on the design of the structure, first, since the series resistance films 211 are arranged in strips, the series resistance films 211 are extended in the front-rear direction, so that the series resistance films 211 can occupy the front side regions as much as possible, and second, each series resistance The films 211 are arranged at intervals from the left to the right to prevent heat from being concentrated only in the middle position of the front side region. Thus, each region of the front side region is distributed with a heat source or adjacent to a heat source, and each series resistance film 211 is generated. The heat will be evenly distributed in the front side area.

[0039] Further, each of the series resistance films 211 extends to the edges of the front and rear sides of the front side region. Among them, by The front side region is substantially triangular, and the intermediate portion of the front side region has a large area, requiring a large amount of heat, and based on this, the series resistor located at the intermediate position can generate more heat, and thus, each series resistance film 211 The heat generated will be better distributed evenly in the front side area.

 Further, each of the series resistance films 211 is disposed at equal intervals in the direction from left to right. Thus, it is advantageous that the heat generated by each series resistance film 211 will be evenly distributed in the front side region.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, each series resistance film 211 is connected in the first position, and the connection conductive film 212 is arranged in an arc shape. Based on this structural design, since the series resistance films 211 are connected in the first place, the length of the connection conductive film 212 can be reduced, and the connection of the conductive film 212 in the front side region can be avoided, which is advantageous for simplifying the structure of the series film group 210. In addition, since the length of the connection conductive film 212 is short, that is, the connection conductive film 212 has a resistance, and the normal use of the series resistance film 211 is not affected, the connection conductive film 212 can also be the same as the series resistance film 211. The material is formed. Thus, in the manufacturing process, the connecting conductive film 212 and the series resistance film 211 can be formed together, and the connecting conductive film 212 and the series resistance film 21 1 can be formed separately, which is advantageous for improving production efficiency.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, each of the parallel resistive films 221 is disposed at equal intervals in the direction from the back to the rear. Thus, it is advantageous that the heat generated by each of the parallel resistive films 221 will be evenly distributed in the rear side region.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, each of the parallel resistive films 221 extends to the edges of the left and right sides of the rear side region. In this way, each of the parallel resistive films 221 can be occupied as much as possible in the rear side region, so that heat is concentrated only in the middle position of the rear side region, so that heat sources or adjacent heat sources are distributed in the respective regions of the rear side region, and the parallel resistive films 221 The heat generated will be evenly distributed in the rear side area based on this structure.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, the resistance values of the parallel resistive films 221 are gradually reduced from the front to the rear, that is, the wide ends of the parallel resistive films 221 in the front-rear direction are Set back and forth.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, each series resistance film 211 has at least one bending point on a path arranged from left to rear.

In the embodiment of the present invention, the thickness of each series resistance film 211 and the thickness of each parallel resistance film 221 are the same. Thus, in the production process, each of the series resistance film 211 and each of the parallel resistance films 221 can be formed together without separate, which is advantageous for improving production efficiency. Specifically, each series resistance film 211 and each of the parallel resistance films 221 are molded together in a process of forming a thin film process such as chemical vapor deposition, spray pyrolysis, ion sputtering, and evaporation. Specifically, the thickness of each series resistance film 211 and the thickness of each parallel resistance film 221 are 0. 5mm.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, the positive and negative electric wire films 231 and 231 are respectively arranged on the left and right sides of the lower side surface 101, and one end of each of the parallel resistive films 221 is The positive electrode film 2 31 is electrically connected, and the other end is electrically connected to the negative electrode film 231. Thus, in combination with the foregoing structure, each of the parallel resistance films 221 can be placed between the positive electrode wire film 231 and the negative electrode wire film 231, and current can pass through the entire parallel resistance film 221 instead of the partial parallel resistance film 221 when passing through the respective parallel resistance films 221. 221.

 Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, the ratio of the length of the series film group 210 in the front-rear direction to the length of the parallel film group 220 in the front-rear direction is 1.2-2, that is, the front The ratio of the area of the side area to the back side area is 1.2-2.

 [0049] The present invention also provides an electric iron including a bottom plate 100 for flattening a fabric and an electric heating film, the bottom plate 100 having a pointed end at the front end, and the bottom plate 100 having a lower side plate surface 101 disposed downwardly, The width of the bottom plate 100 in the left-right direction is gradually reduced along the direction from the front to the rear. The specific structure of the electric heating film is referred to the above embodiment. Since the electric iron adopts all the technical solutions of all the above embodiments, it also has All the beneficial effects brought about by the technical solutions of the foregoing embodiments are not described herein again.

 Further, the bottom plate 100 is a bottom plate 100 made of ceramic glass or crystallized glass. Specifically, in the use of hydrazine, the electric heating film directly generates heat, which directly acts on the fabric, and the other portion acts on the bottom plate 100, wherein the bottom plate 100 is a bottom plate 100 made of ceramic glass or crystallized glass, Since the ceramic glass or the crystallized glass preheating crucible can generate far infrared waves, the electric iron can both iron the fabric and sterilize the fabric.

 Further, the electric iron further includes a protective film that covers the heating film to the bottom plate 100 and is made of a transparent insulating material. Thus, the present invention can protect the heating film by the provision of the protective film, avoiding the ironing structure and rubbing the heating film.

 The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention are included in the present invention. Within the scope of protection.

Claims

An electric heating film for heating and for use in an electric iron for heating, the electric iron including a bottom plate for flattening the fabric, the front end of the bottom plate having a pointed structure, and the bottom plate having a downwardly disposed lower portion a side panel surface, the lower side panel surface being divided into a front side area on the front side or a rear side area on the rear side, and the width of the bottom plate in the left-right direction is gradually reduced along the direction from the back to the rear, The electrothermal film is connected to the lower side surface, wherein the electrothermal film includes a tandem film group for generating heat, a parallel film group for generating heat, and is electrically connected to the tandem film group and a wire film group electrically connected to the parallel film group; The series film group is located in the front side region, and includes a plurality of connecting conductive films and a plurality of series resistance films arranged in series and spaced from left to right and used for heat generation, and the connecting conductive film is used for connecting one Adjacent to the series resistance film; The parallel film group is located in the rear side region, and includes a plurality of parallel resistance films arranged in parallel and used for heat generation, and each of the series resistance films is arranged in a strip shape and extends from left to right. Each of the parallel resistive films is spaced apart along a direction from the back to the rear; The wire film group is located in the rear side region, and includes a positive electrode wire film and a negative electrode wire film which are both disposed in a strip shape and extend from the front to the rear, the tandem film group and the positive electrode wire film and the negative electrode The wire film is electrically connected, and one end of any one of the series resistance films is electrically connected to the positive electrode wire film, and the other end is electrically connected to the negative electrode wire film. The electric heating film according to claim 1, wherein each of said series resistance films is disposed in a strip shape, and said series resistance films are extended in a front-rear direction, and said series resistance films are arranged from left to right. The direction of the arrangement is spaced. The electric heating film according to claim 2, wherein each of said series resistance films extends to edges of front and rear sides of the front side region. The electric heating film according to claim 2, wherein each of the series resistance films is connected in a first position, and the connection conductive film is arranged in a circular arc shape. The electric heating film according to claim 2, wherein each of said series resistance films is disposed at equal intervals in a direction from left to right. The electrothermal film according to any one of claims 1 to 5, wherein each of said series electricity The resist film extends to the edges of the front and rear sides of the front side region, and the resistance value of each of the parallel resistive films is gradually decreased from the front to the rear.  The electric heating film according to any one of claims 1 to 5, wherein each of the parallel resistance films is arranged indirectly in a direction from the rear to the rear. The electric heating film according to any one of claims 1 to 5, wherein each of the series resistance films has at least one bending point in a path arranged from left to rear. The electric heating film according to any one of claims 1 to 5, wherein a thickness of each of the series resistance films and a thickness of each of the parallel resistance films are the same. The electric heating film according to any one of claims 1 to 5, wherein the positive electrode wire film and the negative electrode wire film respectively extend at edges of left and right sides of the lower plate surface Arrangement. The electric heating film according to any one of claims 1 to 5, wherein a ratio of a length of the tandem film group in the front-rear direction to a length of the parallel film group in the front-rear direction For 1.2-2 The electric heating film according to any one of claims 1 to 5, wherein the positive electrode wire film and the negative electrode wire film are electrically conductive paste. The electric heating film according to any one of claims 1 to 5, wherein each of the series resistance film and each of the parallel conductive surfaces is a transparent semiconductor resistance film. [Claim 14] An electric iron comprising a bottom plate for flattening a fabric, the bottom plate having a pointed end at a front end, the bottom plate having a lower side plate surface disposed downward, the bottom plate being in a left-right direction The width is set to be gradually smaller in the direction from the rear to the rear, characterized in that the electric iron further comprises the electrothermal film according to any one of claims 1 to 13. [Claim 15] The electric iron according to claim 14, wherein the bottom plate is a bottom plate made of ceramic glass or crystallized glass.  [Claim 16] The electric iron according to claim 14 or 15, wherein the electric iron further comprises a protective film that covers the heating film on the bottom plate and is made of a transparent insulating material.