CN215453320U - Electric heater and electric heating pipe device - Google Patents

Abstract

The utility model relates to an electric heater and an electric heating tube device, the electric heater comprises: an electric heating layer and a fastening layer; the electric heating layer is used for covering the outer side of the heat conduction pipe, and the inner side surface of the electric heating layer is used for being connected with the outer side surface of the heat conduction pipe; the fastening layer cladding is in the outside of electric heating layer, just the fastening layer with the outside surface connection of electric heating layer. Through the outside cladding one deck fastening layer at the electric heating layer to make the inboard surface of electric heating layer fully hug closely in the heat pipe, and then make the electric heating layer circular telegram back produce the heat, can fully heat the heat pipe, effectively improve the heating efficiency to the heat pipe, and make the heating more even, and the heating effect is better.

Description

Electric heater and electric heating pipe device

Technical Field

The utility model relates to the technical field of electric heating, in particular to an electric heater and an electric heating pipe device.

Background

In some scenarios, it is necessary to wind an electric heating layer outside the heat pipe, and the electric heating layer is used for heating the heat pipe, so that the heat pipe can heat the heated object inside the heat pipe. Because the electric heating layer is cylindric convoluteing, the electric heating layer opens or struts easily under the elasticity effect of self, leads to the electric heating layer can't be attached on the surface of heat pipe completely, leads to the contact of electric heating layer and heat pipe inhomogeneous or contact failure, leads to the electric heating layer to the heating inefficiency of heat pipe, and it is inhomogeneous to heat.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an electric heater and an electric heating tube device.

An electric heater comprising: an electric heating layer and a fastening layer;

the electric heating layer is used for covering the outer side of the heat conduction pipe, and the inner side surface of the electric heating layer is used for being connected with the outer side surface of the heat conduction pipe;

the fastening layer cladding is in the outside of electric heating layer, just the fastening layer with the outside surface connection of electric heating layer.

In one embodiment, the heating device further comprises a heat conduction pipe, a heat conduction cavity is arranged inside the heat conduction pipe, the heat conduction cavity is used for accommodating a heated object, the electric heating layer covers the outer side of the heat conduction pipe, and the inner side surface of the electric heating layer is connected with the outer side surface of the heat conduction pipe.

In one embodiment, the inner diameter of the fastening layer is smaller than or equal to the outer diameter of the heat conductive pipe.

In one embodiment, the inner diameter of the fastening layer is less than or equal to the outer diameter of the electrical heating layer.

In one embodiment, the fastening layer is made of a flexible material.

In one embodiment, the fastening layer is made of an elastic material.

In one embodiment, the fastening layer is made of any one of PEEK, PI, PTFE, PAI, PEI, PES, PSU, PPSU, PPS, PPA, PA, TPE, and LCP.

In one embodiment, the fastening layer is adapted to shrink upon heating.

In one embodiment, the fastening layer is covered with an insulating layer.

An electric heating tube device comprises the electric heater in any one of the above embodiments.

The utility model has the beneficial effects that: through the outside cladding one deck fastening layer at the electric heating layer to make the inboard surface of electric heating layer fully hug closely in the heat pipe, and then make the electric heating layer circular telegram back produce the heat, can fully heat the heat pipe, effectively improve the heating efficiency to the heat pipe, and make the heating more even, and the heating effect is better.

Drawings

FIG. 1 is a schematic view of an embodiment of an electric heater with a directional structure;

FIG. 2 is a schematic view of another embodiment of an electric heater;

FIG. 3 is a schematic view of a partial cross-sectional structure of an electric heater according to another embodiment;

fig. 4 is a partial structural schematic view of an electric heater of another embodiment.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments of the present invention, and the present invention is not limited to the following specific embodiments.

It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the patent, and the specific meanings of the terms will be understood by those skilled in the art according to specific situations.

In one embodiment, as shown in fig. 1 and 2, an electric heater 10 includes: an electric heating layer 200 and a fastening layer 300; the electric heating layer 200 is used for covering the outer side of the heat conduction pipe 100, and the inner side surface of the electric heating layer 200 is used for being connected with the outer side surface of the heat conduction pipe 100; the fastening layer 300 is coated on the outer side of the electric heating layer 200, and the fastening layer 300 is connected with the outer side surface of the electric heating layer 200.

In this embodiment, electric heating layer 200 is used for heating after the circular telegram, and electric heating layer 200 is used for heating heat pipe 100, make the inboard quilt of heat pipe 100 heat the thing and obtain heating, fastening layer 300 is used for tightly cladding the outside surface at electric heating layer 200, so that electric heating layer 200 can fully hug closely the outside surface at heat pipe 100, and then make electric heating layer 200 and heat pipe 100 fully contact, and each position homoenergetic contacts, avoid producing the clearance between electric heating layer 200 and heat pipe 100 and lead to the heat transfer inequality.

It should be understood that, the structure of the electric heating layer 200 includes an insulating layer and a metal sheet, the insulating layer is wrapped on the outer side of the metal sheet, the metal layer is heated after being electrified, therefore, the structure of the electric heating layer 200 is a sheet package, the electric heating layer 200 can be wound on the outer side of the heat pipe 100 by winding the electric heating layer 200, and the two ends of the electric heating layer 200 are adhered and fixed by glue, so as to avoid the two ends of the electric heating layer 200 from being opened, the electric heating layer 200 can also be set to be cylindrical, the cylindrical electric heating layer 200 is sleeved on the heat pipe 100, and the electric heating layer 200 is connected with the outer side surface of the heat pipe 100 by glue on the inner side surface of the electric heating layer 200, these glues can be polyimide glues, and in addition, the insulating layer can also be made of polyimide. For further construction of the electrical heating layer 200, reference may be made to the following embodiments.

It should be understood that even if the electric heating layer 200 is adhered to the outside of the heat pipe 100 by glue, there may be a case where both ends of the electric heating layer 200 are spread due to the elastic force of the electric heating layer 200 itself, or the electric heating layer 200 is spread, so that the electric heating layer 200 cannot be completely attached to the surface of the heat pipe 100. Therefore, by providing the fastening layer 300 outside the electric heating layer 200, the electric heating layer 200 can be effectively biased so that the electric heating layer 200 is closely attached to the outer surface of the heat transfer pipe 100.

In this embodiment, through the outside cladding one deck fastening layer 300 at electric heating layer 200 to make electric heating layer 200's inboard surface fully hug closely in heat pipe 100, and then make electric heating layer 200 produce heat after the circular telegram, can fully heat pipe 100, effectively improve the heating efficiency to heat pipe 100, and make the heating more even, and the heating effect is better, thereby make to heat pipe 100 inboard by heat thing and obtain even heating.

In one embodiment, as shown in fig. 1 and fig. 2, the electric heater 10 further includes a heat conduction pipe 100, a heat conduction cavity is disposed inside the heat conduction pipe 100, the heat conduction cavity is used for accommodating an object to be heated, the electric heating layer 200 covers the outside of the heat conduction pipe 100, and the inside surface of the electric heating layer 200 is connected to the outside surface of the heat conduction pipe 100.

In this embodiment, the heat conduction cavity inside the heat conduction pipe 100 is used for placing the heated object, and the heat conduction pipe 100 is used for receiving the heat of the electric heating layer 200 and conducting the heat to the heated object inside, so that the heated object is heated. The heated material may be liquid, gas or solid, and the solid heated material may be in the form of particles, powder or sheets. In some embodiments, the heated material is tobacco, in some embodiments, the heated material is tobacco paper, in some embodiments, the heated material is tobacco tar, in some embodiments, the heated material is tobacco particles, and in some embodiments, the heated material is edible oil.

In addition, in order to make the heat conducted efficiently, the heat conducting pipe 100 should have better heat conducting performance, in order to improve the heat conducting performance of the heat conducting pipe 100, in one embodiment, the material of the heat conducting pipe 100 is ceramic, the ceramic has high temperature resistance, and the ceramic has higher heat conductivity, so that the heat of the electric heating layer 200 can be conducted to the heated object rapidly through the heat conducting pipe 100, in some embodiments, the material of the heat conducting pipe 100 is metal, the heat conducting pipe 100 made of metal has not only high temperature resistance, but also high heat conductivity, and is a good heat conducting medium, for example, the material of the heat conducting pipe 100 is copper, for example, the material of the heat conducting pipe 100 is aluminum alloy, for example, the material of the heat conducting pipe 100 is stainless steel, in other embodiments, the material of the heat conducting pipe 100 can also be other metal materials, for example, nickel, silver, gold, or nickel, for example, Tungsten, etc., not to be enumerated herein. The cross-sectional shape of heat pipe 100 may be circular, triangular, rectangular, polygonal, and correspondingly, the shape of heat pipe 100 may be a cylindrical shape with a hollow interior, or may be a hollow triangular prism, a hollow rectangular prism, or a hollow polygonal prism, and the hollow polygonal prism may be a hollow hexagonal prism, a hollow octagonal prism, or the like, which are not illustrated in the present embodiment.

In order to make the fastening layer 300 better press the electric heating layer 200 against the surface of the heat conductive pipe 100, in one embodiment, the inner diameter of the fastening layer 300 is smaller than or equal to the outer diameter of the electric heating layer 200.

In this embodiment, the inner diameter of the shape that fastening layer 300 convolutes and encloses is less than or equal to the outer diameter of the shape that electric heating layer 200 convolutes and encloses, like this, make interference fit between fastening layer 300 and heat pipe 100 and electric heating layer 200, make fastening layer 300 can fully press electric heating layer 200 to paste the outside surface at heat pipe 100, and then make electric heating layer 200 can be more abundant, contact with heat pipe 100 symmetrically, avoid producing the clearance between electric heating layer 200 and heat pipe 100.

In order to further press the electric heating layer 200 against the surface of the heat pipe 100, in one embodiment, the inner diameter of the fastening layer 300 is smaller than or equal to the outer diameter of the heat pipe 100.

In this embodiment, the inner diameter of the shape surrounded by the fastening layer 300 and the winding is smaller than or equal to the outer diameter of the heat pipe 100, so that the fastening layer 300 can further press the electric heating layer 200 on the outer surface of the heat pipe 100, and further prevent a gap from being generated between the electric heating layer 200 and the heat pipe 100.

In order to enable the fastening layer 300 with a smaller inner diameter to be installed on the outer side of the electric heating layer 200, in one embodiment, the fastening layer 300 is made of a flexible material.

In this embodiment, fastening layer 300 that adopts flexible material to make has better flexibility and toughness, can strut under the exogenic action, and like this, cylindrical fastening layer 300 struts under the exogenic action for heat pipe 100 and electric heating layer 200 can install the inboard at fastening layer 300, and fastening layer 300 tightly wraps the outside at electric heating layer 200 under the effect of the toughness of self and elasticity afterwards, makes fastening layer 300 can paste electric heating layer 200 in the outside of heat pipe 100 with the pressure.

In order to enable the fastening layer 300 with a smaller inner diameter to be installed on the outer side of the electric heating layer 200, in one embodiment, the fastening layer 300 is made of an elastic material.

In this embodiment, the fastening layer 300 made of an elastic material has better elasticity and toughness, and can be stretched out under the action of an external force, so that the cylindrical fastening layer 300 is stretched out under the action of the external force, the heat pipe 100 and the electric heating layer 200 can be installed on the inner side of the fastening layer 300, and then the fastening layer 300 tightly covers the outer side of the electric heating layer 200 under the action of the toughness and the elasticity of the fastening layer 300, so that the fastening layer 300 can press and attach the electric heating layer 200 to the outer side of the heat pipe 100.

In order to provide the fastening layer 300 with good flexibility, elasticity and toughness, in one embodiment, the material of the fastening layer 300 is any one of PEEK (polyetheretherketone), PI (Polyimide), PTFE (polytetrafluoroethylene), PAI (polyamide-imide), PEI (Poly (ethylene imine), polyethyleneimine, PES (Polyethersulfone), PSU (Polysulfone), PPSU (polyphenylenesulfone resin), PPS (polyphenylene sulfide), PPA (polyphthalamide), PA (polyamide), TPE (Thermoplastic Elastomer) and LCP.

In this embodiment, PEEK, PI, PTFE, PAI, PEI, PES, PSU, PPSU, PPS, PPA, PA, TPE and LCP have good toughness and elasticity, can fasten the cladding in the outside of electric heating layer 200, in addition, PEEK, PI, PTFE, PAI, PEI, PES, PSU, PPSU, PPS, PPA, PA, TPE and LCP still have fine high temperature resistance characteristic, can endure different high temperatures within the 200 ℃ to 350 ℃ scope respectively and unchangeable.

In one embodiment, the fastening layer 300 is configured to shrink upon heating. In this embodiment, the fastening layer 300 is also called a heat shrinkable sleeve, which shrinks after being heated.

In this embodiment, because the electricity of electric heating layer 200 is generated heat after, not only heat pipe 100, still heat fastening layer 300, fastening layer 300 is heated the postshrinkage, and then makes fastening layer 300 cladding in the outside of electric heating layer 200 more firmly for electric heating layer 200 and heat pipe 100 fully contact.

In one embodiment, the fastening layer 300 is made of PEEK, which shrinks after heating, so that the inner electric heating layer 200 can be more sufficiently contacted with the heat pipe 100, and PEEK has a better high temperature resistance property, and can shrink at a heating value of 260 ℃ to 300 ℃ of the electric heating layer 200 without being burnt or damaged. In one embodiment, the fastening layer 300 is made of PI, which shrinks after heating, so that the inner electric heating layer 200 can be more fully contacted with the heat pipe 100, and the PI has excellent high temperature resistance, and can shrink at a heating value of 300 ℃ to 350 ℃ of the electric heating layer 200 without scorching or damaging. In one embodiment, the fastening layer 300 is made of PAI, which shrinks after heating to make the inner electric heating layer 200 contact with the heat pipe 100 more fully, and the PAI has high temperature resistance and can shrink at a heating value of 200 ℃ to 300 ℃ of the electric heating layer 200 without scorching or damaging.

In order to enable a user to hold the electric heater 10, in one embodiment, as shown in fig. 2, the electric heater 10 further includes an insulation layer 400, and the insulation layer 400 is coated on the outer side of the fastening layer 300.

In this embodiment, a circle of heat insulating layer 400 is disposed outside the fastening layer 300, so that heat of the electric heating layer 200 is isolated by the heat insulating layer 400, and the heat transfer is reduced, so that a user can grip the electric heater 10 by gripping the heat insulating layer 400. This insulating layer 400 adopts high temperature resistant, the material that the heat-proof quality is strong to make, can effectively keep apart the heat of electric heating layer 200, and the user of being convenient for grips.

In order to achieve the thermal insulation of the electric heating layer 200, in one embodiment, the material of the thermal insulation layer 400 includes any one of PTFE (polytetrafluoroethylene), PI, melamine, aerogel, fluorosilicone gel, sponge, and asbestos,

in this embodiment, PTFE has a high temperature resistance characteristic, and has a low thermal conductivity, and can well isolate the heat of the electric heating layer 200. The sponge not only has the high temperature resistant characteristic, still because its inside clearance is great, can effectively reduce the efficiency of heat conduction for can play fine thermal-insulated effect. Asbestos has the characteristics of high temperature resistance and flame retardance, is a poor heat conductor and can play a good role in heat insulation. PI, melamine, aerogel and fluorosilicone gel all have good high temperature resistance, have lower thermal conductivity, and can effectively play thermal-insulated effect. In other embodiments, the material of the thermal insulation layer 400 may also be other materials with high temperature resistance and strong thermal insulation performance, which are not listed in this embodiment. In addition, in order to achieve a good thermal insulation effect, the thickness of the thermal insulation layer 400 is greater than that of the electric heating layer in this embodiment, and in order to achieve a better thermal insulation effect, the thickness of the thermal insulation layer 400 is greater than the sum of the thickness of the electric heating layer and the thickness of the electric heating layer. Like this, can play better thermal-insulated effect, the user of being convenient for grips, avoids scalding the user.

In order to connect the various layers of the electric heater 10, in an embodiment, referring to fig. 3 and 4, the electric heater 10 includes a heat pipe 100 and an electric heating layer 200, the electric heating layer 200 includes a first adhesive layer 251, a first insulating layer 241, a second adhesive layer 252, a metal heating layer 210, a third adhesive layer 253, a second insulating layer 242, a fourth adhesive layer 254, a metal connecting layer 220, and a temperature sensing assembly 230;

in this embodiment, the first insulating layer 241 is connected to the heat conducting pipe 100 through the first adhesive layer 251, the metal heating layer 210 is connected to the first insulating layer 241 through the second adhesive layer 252, the second insulating layer 242 is connected to the metal heating layer 210 through the third adhesive layer 253, the metal connecting layer 220 is connected to the second insulating layer 242 through the fourth adhesive layer 254, and the temperature sensing element 230 is welded to the metal connecting layer 220.

In this embodiment, the material of the first insulating layer 241 and the material of the second insulating layer 242 include any one of PEEK, PI, PTFE, PAI, PEI, PES, PSU, PPSU, PPS, PPA, PA and TPE, and the material of the first adhesive layer 251, the second adhesive layer 252, the third adhesive layer 253 and the fourth adhesive layer 254 is any one of inorganic high temperature resistant adhesive, fluorosilicone adhesive, PI adhesive, PEEK adhesive, PTFE adhesive, PAI adhesive, PEI adhesive, PES adhesive, PSU adhesive, PPSU adhesive, PPS adhesive, PPA adhesive, PA adhesive, and TPE adhesive. Through the first adhesive layer 251, the second adhesive layer 252, the third adhesive layer 253, and the fourth adhesive layer 254, the heat pipe 100 and the electric heating layer 200 can be well connected, and the layers in the electric heating layer 200 are more stably connected.

In one embodiment, the materials of the first adhesive layer 251, the second adhesive layer 252, the third adhesive layer 253, and the fourth adhesive layer 254 are the same as the materials of the first insulating layer 241 and the second insulating layer 242, for example, the materials of the first adhesive layer 251, the second adhesive layer 252, the third adhesive layer 253, and the fourth adhesive layer 254 are PI adhesive, and the materials of the first insulating layer 241 and the second insulating layer 242 are PI adhesive, so that the connection of the layers of the electric heating layer 200 is more stable.

In one embodiment, the temperature sensing component 230 includes a thermal resistor. In this embodiment, the resistance value of the thermal resistor is proportional to the change of the temperature, and the corresponding temperature can be detected by detecting the change of the resistance value of the thermal resistor. The temperature of the electric heater 10 can be detected by welding both ends of the thermal resistor to the metal connection layer 220 so that the thermal resistor can be fixed to the electric heater 10. In one embodiment, the temperature sensing assembly 230 includes a PT 1000. In this embodiment, the thermal resistance is PT 1000. The resistance of the PT1000 is 1000 ohm at 0 deg.C and about 2120.515 ohm at 300 deg.C. The working principle is as follows: when the PT1000 is at 0 deg.C, its resistance value is 1000 ohm, and its resistance value is linearly changed with temp. Through this PT1000, can acquire electric heater's temperature accurately to electric heater's work is controlled to the precision.

In one embodiment, there is provided an electric heating tube device comprising the electric heater of any of the above embodiments.

In this embodiment, the electric heating pipe device is used to heat the heated object in the heat conduction pipe, so that the heated object is burned or volatilized under the heating action. By energization of the electric heating layer, heat is generated, so that the heated object in the heat conduction pipe is heated. The electric heating tube device also comprises other components, for example, when the electric heating tube device is used as an electronic cigarette, the electric heating tube device also comprises other components of the electronic cigarette. In this embodiment, this is not always described.

In this embodiment, through the outside cladding one deck fastening layer at the electric heating layer to make the inboard surface of electric heating layer fully hug closely in the heat pipe, and then make the electric heating layer production of heat after the circular telegram, can fully heat the heat pipe, effectively improve the heating efficiency to the heat pipe, and make the heating more even, and the heating effect is better, thereby makes to the inboard quilt of heat pipe heat and obtain even heating.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. An electric heater, comprising: an electric heating layer and a fastening layer;

the electric heating layer is used for covering the outer side of the heat conduction pipe, and the inner side surface of the electric heating layer is used for being connected with the outer side surface of the heat conduction pipe;

the fastening layer cladding is in the outside of electric heating layer, just the fastening layer with the outside surface connection of electric heating layer.

2. The electric heater of claim 1, further comprising a heat conduction pipe, wherein a heat conduction cavity is disposed inside the heat conduction pipe, the heat conduction cavity is used for accommodating a heated object, the electric heating layer covers the outer side of the heat conduction pipe, and the inner side surface of the electric heating layer is connected with the outer side surface of the heat conduction pipe.

3. The electric heater of claim 2, wherein an inner diameter of the fastening layer is less than or equal to an outer diameter of the heat conductive pipe.

4. The electric heater of claim 1, wherein an inner diameter of the fastening layer is less than or equal to an outer diameter of the electric heating layer.

5. The electric heater of claim 1, wherein the fastening layer is made of a flexible material.

6. The electric heater of claim 1, wherein the fastening layer is made of an elastic material.

7. An electric heater as claimed in any of claims 1 to 6, wherein the fastening layer is made of any one of PEEK, PI, PTFE, PAI, PEI, PES, PSU, PPSU, PPS, PPA, PA, TPE and LCP.

8. The electric heater of claim 7, wherein the fastening layer is configured to shrink upon heating.

9. The electric heater of any of claims 1-6, further comprising an insulation layer that covers the outside of the fastening layer.

10. An electric heating tube device, characterized by comprising an electric heater as claimed in any one of claims 1-9.

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