CN217183491U

CN217183491U - PTC heating element for beauty instrument

Info

Publication number: CN217183491U
Application number: CN202122882842.2U
Authority: CN
Inventors: 罗检平
Original assignee: Dongguan Bizhuo Hardware Electronics Co ltd
Current assignee: Dongguan Bizhuo Hardware Electronics Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-08-12
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a PTC heating element for a beauty instrument, which comprises a PTC heating element, an insulating sheet, a heat-conducting silica gel film and a protective layer; the PTC heating element is arranged into the honeycomb body, the honeycomb holes are formed in the honeycomb body, so that heat can be dissipated in a convection mode, and the fluid flows to the outer side of the PTC heating element to take the heat out, so that a large heat dissipation area can be generated in a small volume, the heating power is improved, and the problem that the size of the conventional heating sheet is limited due to the miniaturization design of a beauty instrument is solved; the PTC heating element is arranged into at least two pieces, so that the heating speed is greatly improved, and the heat conduction silica gel film and the protective layer are sequentially arranged outside the PTC heating element and the insulating sheet, so that the corrosion resistance can be improved, the oxidation resistance is enhanced, the service life is greatly prolonged, and the existing requirements are met.

Description

PTC heating element for beauty instrument

Technical Field

The utility model relates to a PTC heat-generating body field technique especially indicates a PTC heat-generating body for beauty instrument.

Background

The PTC heater is also called as PTC heater, and is composed of PTC ceramic heating element and aluminum tube. The PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. The safety device is characterized in that the surface of an electric heating tube heater does not turn red in any application condition on the safety performance, so that potential safety hazards such as scalding, fire disasters and the like are caused.

The PTC heating element used for the beauty instrument at present is generally a structure of a single heating sheet, the structure is simple, the function is single, the size of the heating sheet is limited due to the miniaturization design of the beauty instrument, the heating speed is slow, the PTC heating element is easy to corrode and oxidize, the service life is short, and the existing requirements cannot be met. Therefore, there is a need for an improvement of the PTC heating element used in the cosmetic instrument.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention can effectively solve the problems of the conventional PTC heating element for a beauty instrument, such as slow heating speed, easy corrosion, and short service life due to easy oxidation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a PTC heating element for a beauty instrument comprises a PTC heating element, an insulating sheet, a heat-conducting silica gel film and a protective layer; the PTC heating elements are honeycomb bodies, a plurality of honeycomb holes are formed in the honeycomb bodies, and the number of the PTC heating elements is at least two; the insulating sheet is clamped between two adjacent PTC heating elements; the heat-conducting silicon rubber film coats the PTC heating element and the insulating sheet; the protective layer covers the heat-conducting silicon adhesive film.

Preferably, the PTC heating element is square, and the honeycomb holes are also square, and the honeycomb holes are arranged in a matrix.

Preferably, the PTC heating elements are two arranged side by side; and the two ends of the first wire are respectively connected with the PTC heating element and the first socket in a conduction mode, the two ends of the second wire are respectively connected with the PTC heating element and the second socket in a conduction mode, and the two ends of the second wire are respectively connected with the PTC heating element and the second socket in a conduction mode.

As a preferred scheme, the joints of the PTC heating element and the first wire and the second wire are respectively sleeved with sealing compound, and the joints of the first wire and the second wire are sleeved with heat-shrinkable sleeves.

As a preferred scheme, further be provided with third wire rod and third socket, the both ends of this third wire rod respectively with second socket and third socket conducting connection, the surface cover of third wire rod is equipped with the fine sleeve pipe of glass.

Preferably, the first jack comprises a silica gel sheath and a direct-insert terminal with a lock embedded in the silica gel sheath, and the second jack comprises a rubber shell and a terminal embedded in the rubber shell.

As a preferred scheme, the front end face and the rear end face of the PTC heating element extend out of the heat-conducting silica gel film and the protective layer.

Preferably, the protective layer is a boron carbide and phenolic resin coating.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the PTC heating element is arranged into the honeycomb body, the honeycomb holes are formed in the honeycomb body, so that heat can be dissipated in a convection mode, and the fluid flows to the outer side of the PTC heating element to take the heat out, so that a large heat dissipation area can be generated in a small volume, the heating power is improved, and the problem that the size of the conventional heating sheet is limited due to the miniaturization design of a beauty instrument is solved; the PTC heating element is arranged into at least two pieces, so that the heating speed is greatly improved, and the heat conduction silica gel film and the protective layer are sequentially arranged outside the PTC heating element and the insulating sheet, so that the corrosion resistance can be improved, the oxidation resistance is enhanced, the service life is greatly prolonged, and the existing requirements are met.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a side view of the preferred embodiment of the present invention;

fig. 3 is a partially enlarged schematic view of the PTC heating element according to the preferred embodiment of the present invention.

The attached drawings indicate the following:

10. PTC heating element 11, honeycomb hole

20. Insulating sheet 30 and heat-conducting silicone adhesive film

40. Protective layer 51 and first wire

52. Second wire 53 and third wire

61. First socket 611 and silica gel sheath

612. Direct-insert terminal 62 with lock and second socket

621. Rubber case 622, terminal

63. Third socket 71 and sealing compound

72. Heat shrink 73, fiberglass sleeve.

Detailed Description

Referring to fig. 1 to 3, a specific structure of a preferred embodiment of the present invention is shown, which includes a PTC heating element 10, an insulation sheet 20, a heat conductive silicone film 30 and a protection layer 40.

The PTC heating element 10 is a honeycomb body, a plurality of honeycomb holes 11 are formed in the PTC heating element, the honeycomb holes 11 enable heat to be dissipated in a convection mode, and fluid flows to the outer side of the PTC heating element 10 to carry the heat out, so that a large heat dissipation area can be generated in a small volume, and heating power is improved; the number of the PTC heating elements 10 is at least two, and the PTC heating elements 10 are connected with an external circuit in a conduction manner; in the present embodiment, the PTC heating elements 10 are square, the honeycomb holes 11 are also square, the honeycomb holes 11 are arranged in a matrix, and two PTC heating elements 10 are arranged side by side; and a first wire 51, a second wire 52, a first socket 61 and a second socket 62 are further arranged, two ends of the first wire 51 are respectively connected with the PTC heating element 10 and the first socket 61 in a conduction manner, two ends of the first wire 51 are respectively connected with the PTC heating element 10 and the second socket 62 in a conduction manner, two ends of the second wire 52 are respectively sleeved with a sealing compound 71, and the joints of the PTC heating element 10, the first wire 51 and the second wire 52 are respectively sleeved with a heat-shrinkable sleeve 72; in addition, a third wire 53 and a third socket 63 are further provided, two ends of the third wire 53 are respectively connected with the second socket 62 and the third socket 63 in a conduction manner, and a glass fiber sleeve 73 is sleeved on the outer surface of the third wire 53; the first jack 61 comprises a silicone sheath 611 and a straight-insertion terminal 612 with a lock embedded in the silicone sheath 611, and the second jack 62 comprises a rubber shell 621 and a terminal 622 embedded in the rubber shell 621.

The insulating sheet 20 is sandwiched between two adjacent PTC heating elements 10, and the insulating sheet 20 completely insulates between the two adjacent PTC heating elements 10 to prevent the two PTC heating elements from being broken down or connected.

The heat-conducting silicone film 30 covers the PTC heating element 10 and the insulating sheet 20; the heat-conducting silicone adhesive film 30 has good insulativity, flexibility, high temperature resistance and heat conductivity, effectively transfers a large amount of generated heat in time, and improves the overall stability and safety; in this embodiment, the front and rear end surfaces of the PTC heating element 10 are extended out of the heat conductive silicone film 30.

The protective layer 40 covers the heat-conducting silicon adhesive film 30, and the protective layer 40 has good oxidation resistance, high temperature resistance and corrosion resistance, so that the safety is greatly improved, and the service life is greatly prolonged; in this embodiment, the front and rear end surfaces of the PTC heating element 10 are extended by the protective layers 40, and the protective layers 40 are made of boron carbide and phenolic resin.

Detailed description the fabrication and assembly process of the present embodiment is as follows:

firstly, welding and connecting the PTC heating element 10 and an insertion opening by using a wire, respectively sleeving sealing glue 71 at the connection part of the PTC heating element 10 and the wire, and sleeving a heat-shrinkable sleeve 72 at the connection part of the two wires; then, connecting and conducting two plugs by using a wire rod, and sleeving a glass fiber sleeve 73 on the wire rod; then, the two PTC heating elements 10 are sandwiched by the insulating sheet 20; finally, the heat conductive silicone film 30 and the protective layer 40 are sequentially coated on the outer sides of the PTC heating element 10 and the insulating sheet 20.

The utility model discloses a design focus lies in:

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A PTC heating element for a beauty instrument, characterized in that: comprises a PTC heating element, an insulating sheet, a heat-conducting silica gel film and a protective layer; the PTC heating elements are honeycomb bodies, a plurality of honeycomb holes are formed in the honeycomb bodies, and the number of the PTC heating elements is at least two; the insulating sheet is clamped between two adjacent PTC heating elements; the heat-conducting silicon rubber film coats the PTC heating element and the insulating sheet; the protective layer covers the heat-conducting silicon adhesive film.

2. A PTC heating element for a cosmetic instrument according to claim 1, characterized in that: the PTC heating element is square, the honeycomb holes are also square, and the honeycomb holes are arranged in a matrix form.

3. A PTC heating element for a cosmetic instrument according to claim 1, characterized in that: the PTC heating elements are arranged side by side; and the two ends of the first wire are respectively connected with the PTC heating element and the first socket in a conduction mode, the two ends of the second wire are respectively connected with the PTC heating element and the second socket in a conduction mode, and the two ends of the second wire are respectively connected with the PTC heating element and the second socket in a conduction mode.

4. A PTC heating element for a cosmetic instrument according to claim 3, characterized in that: the PTC heating element is respectively sleeved with sealing glue at the joints of the first wire and the second wire, and the joints of the first wire and the second wire are sleeved with heat-shrinkable sleeves.

5. A PTC heating element for a cosmetic instrument according to claim 3, characterized in that: the glass fiber sleeve is sleeved on the outer surface of the third wire rod.

6. A PTC heating element for a cosmetic instrument according to claim 3, characterized in that: first socket is including silica gel sheath and inlay the direct-insert area lock terminal on the silica gel sheath, and this second socket is including gluing the shell and inlaying the terminal on gluing the shell.

7. A PTC heating element for a cosmetic instrument according to claim 1, characterized in that: and the front end surface and the rear end surface of the PTC heating element extend out of the heat-conducting silica gel film and the protective layer.