CN218416700U

CN218416700U - Multilayer heating assembly

Info

Publication number: CN218416700U
Application number: CN202222104976.6U
Authority: CN
Inventors: 赵舜培; 陈远钦
Original assignee: Dongguan Ruidi Three Dimensional Electronic Technology Co ltd
Current assignee: Dongguan Ruidi Three Dimensional Electronic Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-01-31
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a can be used to multilayer heating element in generator module that generates heat, this heating element includes: the heating component is formed by mutually overlapping at least two layers of electric heating sheet monomers, the insulating layer is positioned between the upper electric heating sheet monomer and the lower electric heating sheet monomer, and the heat conductor penetrates through the two upper electric heating sheet monomers and the two upper electric heating sheet insulating layers and the lower electric heating sheet insulating layers. The utility model provides a heating element adopts at least two-layer electric heat piece monomer stack to constitute a compound electric heat piece that generates heat to can provide double heat, with the lower not enough of compensating individual layer electric heat piece calorific capacity. Secondly, for better promotion heating effect, through being provided with the heat conductor between two adjacent electric heat piece monomers, can be with the heat mutual transmission that the electric heat piece monomer produced through the heat conductor, so not only the temperature promotes fastly to help keeping warm.

Description

Multilayer heating assembly

The technical field is as follows:

the utility model relates to an electric heater unit technical field refers in particular to a multilayer heating element who can be arranged in generator module that generates heat.

The background art comprises the following steps:

the interior of a common hand-held electric generator, such as a hair straightener, a hair curler, etc., needs to be provided with an electric heating device, and at present, the common electric heating device mostly adopts an electric heating plate, an electric heating sheet or an electric heating wire. The heating element in such an electric heating device usually has a high resistance flexible sheet, plate (of course, an electrically conductive electrothermal coating), and wire, and when it is connected to a heating circuit, it generates heat when it is energized.

Referring to fig. 1, a hair straightener product generally comprises an upper plate 81 and a lower plate 82, wherein the rear ends of the upper and lower plates are rotatably connected, the corresponding inner surfaces of the front ends of the upper and lower plates are respectively provided with an upper heating plate and a lower heating plate, and heating components are arranged inside the upper and lower heating plates. In addition, a control circuit board is also arranged in the hair straightener. At present, a commonly used heating component is generally a ceramic electric heating plate, and when the ceramic electric heating plate works, heating wires inside the ceramic electric heating plate generate heat after being electrified. See patent numbers: 201720895091.9, which discloses a heating component for a hair straightener. In order to make the heat generated by the electric heating plate uniform, the utility model discloses a set the heating wire to S type.

The hair straightener products sold in the market at present mainly have the following defects:

1. the energy consumption of the electric heating plate of the conventional hair straightener product is large at present, but the volume of the hair straightener product is relatively small, and a battery with enough capacity cannot be arranged to support the energy consumption of the electric heating plate, so that the products usually do not support wireless arrangement, namely the conventional hair straightener product is usually required to be connected with an external power supply through a lead.

2. In the existing hair straightener products, an external power supply is adopted for supplying power, so that the power supply is not taken as a main research problem generally, in order to quickly reach the working temperature, the actual working temperature of a heating component in a heating plate usually exceeds the rated working temperature, so that the positions of the upper clamping plate and the lower clamping plate for mounting the heating plate are caused, the internal temperature of the heating plate is higher, and therefore, in order to ensure the working stability, a control circuit board is usually far away from the heating plate and is usually arranged at the rear end positions of the upper clamping plate and the lower clamping plate (namely, arranged at the handle position).

In order to realize the wireless power supply of the handheld power generation product of hair straightener class, adopt self battery powered, the battery technology that waits for higher capacity ratio urgently can realize breaking through on the one hand, and on the other hand, to the producer of power generation product, the main research direction is the heat utilization efficiency who improves heating element in the hot plate, comes out the heat conduction as fast as possible, reduces the unnecessary loss. In view of the above, the present inventors have proposed a technical solution, which is disclosed in the patent application No. as follows: 201710675490.9, which discloses an electric heating sheet material, which has the advantages of a heating speed block, small heat conduction delay and the like after being used as a heating component. Can provide more accurate operating temperature, and its intensification is fast simultaneously, and the thermal efficiency is high. Therefore, the inventor uses the electric heating sheet in an electric generator product to develop a wireless handheld electric generator product. The inventor finds that in the subsequent development process, the product still has certain defects, which are mainly reflected in the following aspects: although the electric heating plate has the advantages of fast heating speed, small heat conduction delay and the like after being used as a heating component, the total heat provided by the electric heating plate is limited, and further improvement is needed.

In order to solve the above problems, the present inventors have made further improvements and have proposed the following solutions.

The utility model has the following contents:

the utility model aims to solve the technical problem that the prior art is not enough to overcome, a multilayer heating element is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme: a multi-layer heat-generating component, comprising: the heating component is formed by mutually overlapping at least two layers of electric heating sheet monomers, the insulating layer is positioned between the upper electric heating sheet monomer and the lower electric heating sheet monomer, and the heat conductor penetrates through the two upper electric heating sheet monomers and the two upper electric heating sheet insulating layers and the lower electric heating sheet insulating layers.

Furthermore, in the above technical solution, the heating component is formed by bending the same electric heating sheet into a stacked state of at least two electric heating sheet monomers.

Furthermore, in the above technical solution, all the electric heating plate monomers in the heating assembly are sequentially connected in series through the material thereof, and the start end and the tail end of the same electric heating plate which constitutes all the electric heating plate monomers are respectively connected with the external power supply wire to supply power to the heating assembly.

Further, in the above technical solution, the heating assembly is formed by stacking at least two independent electric heating sheet monomers.

Furthermore, in the above technical solution, all the electric heating plate monomers in the heating assembly are sequentially connected end to end in series, wherein the starting end of the electric heating plate monomer located at the uppermost layer and the tail end of the electric heating plate monomer located at the lowermost layer are respectively connected with an external power supply wire to supply power to the heating assembly.

Furthermore, in the above technical solution, the electric heating plate monomers are provided with through holes distributed in an array, and the heat conductor passes through the corresponding through holes on two adjacent electric heating plate monomers.

Furthermore, in the above technical solution, the diameter of the through hole is larger than the diameter of the heat conductor, that is, the heat conductor passes through the middle of the through hole but does not contact with the electric heating plate monomer.

Further, in the above technical solution, the heat conductor is a tubular metal body.

Further, in the above technical scheme, the electric heating sheet monomer is cut to form a continuous bending shape.

The utility model adopts the above technical scheme afterwards, for prior art, it has following technological effect: at first, the utility model provides a heating element adopts at least two-layer electric heat piece monomer stack to constitute the electric heat piece that a complex generates heat to can provide double heat, with the lower not enough of compensateing individual layer electric heat piece calorific capacity. Secondly, for the better effect of raising the temperature, through being provided with the heat conductor between two adjacent electric heat piece monomers, can be with the heat mutual transmission that the electric heat piece monomer produced through the heat conductor, so not only the temperature promotes fastly to help keeping warm.

Description of the drawings:

FIG. 1 is a perspective view of a prior art generator;

fig. 2 is a perspective view of a heating module used in the present invention;

FIG. 3 is an exploded perspective view of FIG. 2;

fig. 4 is an exploded perspective view of the circuit connection in the heating module of the present invention;

fig. 5 is a front view of a first embodiment of the present invention;

fig. 6 is a perspective view of a first embodiment of the present invention;

fig. 7 is a perspective view of a second embodiment of the present invention;

fig. 8 is a tiled state diagram of the second embodiment of the present invention;

fig. 9 is a perspective view of a third embodiment of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

See fig. 2 and 3, the utility model discloses can be used to the generator module that generates heat, the generator module includes usually: heat conductor 1, heating element 2 and fixing base 3. The heat conductor 1 is fixedly connected with the fixing seat 3, the heating component 2 is positioned between the heat conductor 1 and the fixing seat 3, and heat generated by the heating component 2 is conducted to the heat conductor 1 to heat and shape hair.

The heat conductor 1 is made of metal materials, and an insulating film 4 is arranged between the heating component 2 and the heat conductor 1. The heat conductor 1 is provided with a contact flat plate 11, the contact flat plate 11 is used for being in contact with human hair, clamping grooves 12 are formed in the front side and the rear side of the inner end face of the contact flat plate 11 through bending, and the clamping grooves 12 are used for being matched with the fixing seat 3.

The fixing seat 3 is made of plastic materials and comprises: a base 31, and a left end seat 32 and a right end seat 33 fixedly connected to both sides of the base 31. The base 31 is used for carrying a circuit board (not shown). Card bars 311 that mate with the card slots 12 are formed on both sides of the base 31. The front and back sides of the left end seat 32 and the right end seat 33 are formed with

clamping strips

321 and 331 corresponding to the clamping grooves 12.

The cooperation mode between heat conductor 1 and fixing base 3 does: firstly, the base 31 is connected with the clamping groove 12 through the clamping strip 311 in a clamping and embedding fit manner, secondly, because the

clamping strips

321 and 331 formed at the front side and the rear side of the left end seat 32 and the right end seat 33 correspond to the clamping groove 12, the left end and the right end of the heating component 2 extend into the left end seat 32 and the right end seat 33, and the left end seat 32 and the right end seat 33 are connected with the two ends of the heat conductor 1 through the matching of the

clamping strips

321 and 331 and the clamping groove 12.

In addition, a left connecting portion 322 and a right connecting portion 332 are respectively formed at one end of the outer sides of the left end seat 32 and the right end seat 33, and the left and right connecting portions are used for being connected with an upper clamping plate and a lower clamping plate in the generator.

The insulating film 4 is generally made of a high-temperature-resistant polymer film product, and is laid on the inner side surface of the heat conductor 1 contacting the flat plate 11 to isolate the heat conductor 1 from the heating component 2. An insulating heat insulating plate 5 is arranged above the heating component 2, and heat is blocked from being conducted upwards to the base 31 of the fixed seat 3 through the insulating heat insulating plate 5.

Two wires 6 connected with the power supply penetrate through the fixing base 3 and are connected with the electrode end of the heating component 2 to supply power to the heating component 2. A fuse 60 is further arranged on one of the leads, when the temperature inside the heating module is too high, the fuse 60 is fused, the whole heating circuit is disconnected, and heating is stopped, so that the personal health of a user is guaranteed.

In addition, a temperature sensor 7 is also arranged in the heating module, and the temperature sensor 7 is connected with a main control circuit of the electric heater through a channel lead of the temperature sensor 7. In order to ensure the accuracy of the temperature sensing, the temperature sensor 7 is inserted through the slot 51 formed on the insulated board 5 and directly contacts the heating element 2.

Fig. 4 shows a circuit connection diagram according to a first embodiment of the present invention. In this embodiment, the heating assembly 2 is formed by stacking two independent electric heating plate monomers 20, and an insulating layer 21 is disposed between two adjacent electric heating plate monomers 20.

The circuit connection mode of the two layers of electric heating sheet monomers 20 adopts a series connection mode to be sequentially connected end to end, and the specific connection mode is as follows: the starting end 201 of the electric heating piece monomer 20 positioned on the uppermost layer is used as one electrode end, the tail end 202 of the electric heating piece monomer 20 positioned on the lowermost layer is used as the other electrode end, and the starting end 201 and the tail end 202 are used as electrode ends and are respectively connected with the connecting ends 61 and 62 of the two external leads 6. For the convenience of connection, the electrode terminals of the heating element 2 are located on the same side, i.e. the starting terminal 201 and the end terminal 202 are located on the same side of the heating element 2.

Because the insulating layer 21 exists, the starting end 201 of the uppermost electric heating element unit 20 and the tail end 202 of the lowermost electric heating element 20 are not in the same plane, so for convenience of connection, a connecting sheet 203 can be arranged beside the starting end 201 of the uppermost electric heating element unit 20, and the connecting sheet 203 passes through the insulating layer 21 downwards and then is electrically connected with the tail end 202 of the lowermost electric heating element 20. The specific connection mode can be connected by a conductive rivet or a plated through hole. Thus, the tail end 202 is connected to the corresponding wire 6 via the connecting piece 203.

The connection mode between the electric heating piece monomers 20 of the upper and lower adjacent two layers is as follows: the tail end 204 of the upper electric heating plate monomer 20 is connected with the start end 205 of the lower electric heating plate monomer 20 by a conductive rivet or a plated hole. In this way, the utility model discloses can form multilayer heat-generating body with the independent electric heat piece monomer 20 stack of two-layer, three-layer multilayer even more.

Fig. 5 and 6 show a first embodiment of the multi-layer heating assembly of the present invention. As described above, the heat generating component 2 includes: the electric heating plate comprises an electric heating plate monomer 20, an insulating layer 21 and a heat conductor 22. In this embodiment, the heating assembly 2 is formed by overlapping two layers of the electric heating plate monomers 20, the insulating layer 21 is located between the two electric heating plate monomers 20 adjacent to each other up and down, and the heat conductor 22 passes through the two electric heating plate monomers 20 adjacent to each other up and down and the insulating layer 21 adjacent to each other up and down.

In order to improve the thermal conductivity, the electric heating plate single body 20 is provided with through holes 200 distributed in an array, and a continuous bending shape is formed by cutting, that is, each electric heating plate single body 20 is formed into a continuous bending shape by a cutting line 23. This can increase the resistance and increase the heating temperature. The heat conductor 22 passes through the corresponding through holes 200 on the two adjacent electric heating plate monomers 20.

In order to increase the heat conduction speed, the heat conductor 22 may be made of a metal material, in this embodiment, the heat conductor 22 is a tubular metal body, i.e., a channel 220 is formed in the middle of the heat conductor 22, which is favorable for heat radiation. In order to avoid short circuit, the thermal conductor 22 should not contact the electric heating plate unit 20, so the diameter of the through hole 200 is larger than that of the thermal conductor 22, i.e. the thermal conductor 22 passes through the middle of the through hole 200 but does not contact the electric heating plate unit 20.

The insulating layer 21 is made of an insulating sheet or plate, and a through hole for the heat conductor 22 to pass through is correspondingly formed in the insulating layer 21.

In addition, the starting end 201 of the single electric heating element 20 located on the upper layer serves as one electrode end, the tail end 202 of the single electric heating element 20 located on the lower layer serves as the other electrode end, and the starting end 201 and the tail end 202 serve as two electrode ends in the first embodiment.

As shown in fig. 7 and fig. 8, this is a second embodiment of the present invention, and the second embodiment is different from the first embodiment in that: in the second embodiment, the heating element 2 is formed by bending the same electric heating sheet to form a stacked state of two electric heating sheet units 20. All the electric heating sheet monomers 20 in the heating component 2 are sequentially connected in series through self materials, the starting end 201 and the tail end 202 of the same electric heating sheet forming all the electric heating sheet monomers 20 are respectively used as electrode ends, and the external lead 6 is connected with the electrode ends to supply power to the heating component 2.

As shown in fig. 9, this is a third embodiment of the heat generating component 2 of the present invention, and the third embodiment is different from the second embodiment in that: in the third embodiment, the heating element 2 is formed by bending the same electric heating sheet for three times to form a stacked state of four layers of electric heating sheet monomers 20. The working principle is the same as that described above, and the description is omitted here.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. A multi-layer heat-generating component characterized by: this heating element includes: the heating component is formed by mutually overlapping at least two layers of electric heating sheet monomers, the insulating layer is positioned between the upper electric heating sheet monomer and the lower electric heating sheet monomer, and the heat conductor penetrates through the two upper electric heating sheet monomers and the two upper electric heating sheet insulating layers and the lower electric heating sheet insulating layers.

2. A multi-layer heat-generating component as recited in claim 1, wherein: the heating component is formed by bending the same electric heating piece into a superposition state of at least two layers of electric heating piece monomers.

3. A multi-layer heat-generating component as recited in claim 2, wherein: all the electric heating piece monomers in the heating assembly are sequentially connected in series through self materials, and the starting end and the tail end of the same electric heating piece which forms all the electric heating piece monomers are respectively connected with an external power supply lead to supply power to the heating assembly.

4. A multi-layer heat-generating component as recited in claim 1, wherein: the heating component is formed by the superposition of at least two layers of independent electric heating sheet monomers.

5. The multilayer heat generating assembly of claim 4, wherein: all the electric heating piece monomers in the heating assembly are sequentially connected end to end in a series connection mode, wherein the starting end of the electric heating piece monomer positioned on the uppermost layer and the tail end of the electric heating piece positioned on the lowermost layer are respectively connected with an external power supply wire to supply power to the heating assembly.

6. A multi-layer heat-generating component as recited in any one of claims 1-5, wherein: the electric heating plate single bodies are provided with through holes distributed in an array mode, and the heat conductor penetrates through the corresponding through holes in the two upper and lower adjacent electric heating plate single bodies.

7. A multi-layer heat-generating component as recited in claim 6, wherein: the diameter of the through hole is larger than that of the heat conductor, namely, the heat conductor penetrates through the middle of the through hole and is not contacted with the electric heating piece monomer.

8. A multi-layer heat-generating component as recited in claim 7, wherein: the heat conductor is a tubular metal body.

9. A multi-layer heat-generating component as recited in claim 6, wherein: the electric heating sheet single body forms a continuous bending shape through cutting.