CN216650028U

CN216650028U - Semiconductor special ceramic element

Info

Publication number: CN216650028U
Application number: CN202123278717.7U
Authority: CN
Inventors: 叶许; 杨少杰
Original assignee: Hunan Xiangci Keyi Co ltd
Current assignee: Hunan Xiangci Keyi Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-31
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a special ceramic element of semiconductor, includes ceramic housing, the cavity has in the ceramic housing, the inside PTC heating plate that is provided with of cavity, electrode slice, two are all pasted to PTC heating plate both sides face the wire has been welded respectively to the electrode slice, the ceramic housing top is provided with the end cover, ceramic housing with end cover threaded connection, the end cover top is fixed with the sealing plug, the wire runs through ceramic housing, end cover, sealing plug and extends to the ceramic housing outside. The utility model has novel conception and simple structure, the external part of the element is designed into a form that the ceramic shell is matched with the end cover, the time for disassembling and repackaging the element during replacement is saved, and the maintenance cost is reduced; meanwhile, a temperature sensor is arranged below the ceramic shell, and the power can be automatically cut off when the temperature of the element is too high, so that the service life of the element is prolonged; in addition, the ceramic shell has insulation property and is not easy to damage, and the safety performance of the element is further guaranteed.

Description

Semiconductor special ceramic element

Technical Field

The utility model relates to the technical field of ceramic heating, in particular to a special semiconductor ceramic element.

Background

The special ceramics are also called fine ceramics, advanced ceramics, modern ceramics high-technology ceramics or high-performance ceramics. Specialty ceramics are generally considered to be "ceramics that use highly selected raw materials, have precisely controlled chemical compositions, are processed according to easily controlled manufacturing techniques, are easily structurally designed, and have superior properties". Its emergence is closely related to modern industry and high technology. The ceramic heating has the characteristics of environmental protection, safety, quick heat transfer and the like, is widely applied to various heating appliances, and is particularly rapidly developed in the field of PTC heating elements.

However, in actual use, the PTC heating element is in a high-temperature operating state for a long time, and the PTC heating sheet is inevitably damaged, and needs to be replaced. The existing PTC heating element is integrated in structure, needs to be disassembled and packaged again during replacement, and is long in operation time and high in maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special semiconductor ceramic element, which is used for solving the following technical problems:

the existing PTC heating element has a more integral structure, needs to be disassembled and packaged again during replacement, and has long operation time and high maintenance cost.

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

the utility model provides a special ceramic element of semiconductor, includes ceramic housing, the cavity has in the ceramic housing, the inside PTC heating plate that is provided with of cavity, electrode slice, two are all pasted to PTC heating plate both sides face the wire has been welded respectively to the electrode slice, the ceramic housing top is provided with the end cover, ceramic housing with end cover threaded connection, the end cover top is fixed with the sealing plug, the wire runs through ceramic housing, end cover, sealing plug and extends to the ceramic housing outside.

Further, the ceramic shell and the end cover have the same outer diameter.

Further, the top of the end cover is provided with a notch for installing a sealing plug.

Further, the ceramic shell, the end cap and the sealing plug are coaxially arranged.

Furthermore, the sealing plug comprises a handle and a plug body, a wire guide hole is formed in the plug body, and the handle is fixed to the top of the plug body.

Further, a temperature sensor is arranged at the bottom end of the ceramic shell.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has novel conception and simple structure, the external part of the element is designed into a form that the ceramic shell is matched with the end cover, the time for disassembling and repackaging the element during replacement is saved, and the maintenance cost is reduced; meanwhile, a temperature sensor is arranged below the ceramic shell, and the power can be automatically cut off when the temperature of the element is too high, so that the service life of the element is prolonged; in addition, the ceramic shell has insulation property and is not easy to damage, and the safety performance of the element is further guaranteed.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a special semiconductor ceramic device;

FIG. 2 is a horizontal sectional view of a special semiconductor ceramic element;

FIG. 3 is a vertical sectional view of a special semiconductor ceramic element;

FIG. 4 is a perspective view of an end cap in a special ceramic component for semiconductors;

FIG. 5 is a perspective view of a sealing plug in a special ceramic component for semiconductors;

in the figure: 1. a sealing plug; 2. a wire; 3. an end cap; 4. a ceramic housing; 5. an electrode sheet; 6. a PTC heating sheet; 7. a temperature sensor; 8. a cavity; 9. a wire guide hole; 10. a handle; 11. a plug body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a special semiconductor ceramic element includes a ceramic housing 4, a cavity 8 is formed in the ceramic housing 4, a PTC heating sheet 6 is disposed in the cavity 8, electrode sheets 5 are respectively attached to two side surfaces of the PTC heating sheet 6, two wires 2 are respectively welded to the two electrode sheets 5, an end cover 3 is disposed above the ceramic housing 4, the ceramic housing 4 is in threaded connection with the end cover 3, a sealing plug 1 is fixed to the top of the end cover 3, and the wires 2 penetrate through the ceramic housing 4, the end cover 3 and the sealing plug 1 and extend to the outside of the ceramic housing 4.

The ceramic shell 4 and the end cover 3 have the same outer diameter.

And the top of the end cover 3 is provided with a notch for installing the sealing plug 1.

The ceramic housing 4, the end cap 3 and the sealing plug 1 are coaxially arranged.

By adopting the technical scheme, when the end cover 3 is screwed relative to the ceramic shell 4, the interference between the lead 2 and the end cover 3 can be effectively avoided by the design of the middle notch, so that the screwing process is blocked.

The sealing plug 1 comprises a handle 10 and a plug body 11, wherein a lead 2 hole is formed in the plug body 11, and the handle 10 is fixed to the top of the plug body 11.

By adopting the technical scheme, the wire hole 9 on the sealing plug 1 can pass through the wire 2 and lead the wire out of the element, and after the sealing plug 1 is installed and fixed, the end cover 3 cannot rotate, so that the whole element forms sealing. Furthermore, a sealant can be added at the joint of the sealing plug 1 and the end cover 3 to enhance the sealing performance.

The lowest end of the ceramic shell 4 is provided with a temperature sensor 7.

By adopting the technical scheme, the PTC heating sheet 6 can be accurately installed on a station, and meanwhile, the temperature sensor 7 is also arranged below the ceramic shell 4, so that the power can be automatically cut off when the temperature of the element is too high, and the service life of the element is prolonged; in addition, the ceramic shell 4 has insulation property and is not easy to damage, and the safety performance of the element is further guaranteed.

The working principle of the utility model is as follows: after the element is electrified, current is input to the electrode through the lead 2, passes through the PTC heating sheet 6 and is output from the lead 2 welded on the other electrode to form a closed loop. Along with operating time increases, the circuit temperature risees, and PTC generates heat 6 temperature risees, and the resistance value increases, and the heat passes through the heat-conducting layer simultaneously and transmits to ceramic package surface, and when the temperature reached a demarcation limit, the temperature sensor 7 of below sent out the signal, cut off the circuit.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A semiconductor special ceramic element comprises a ceramic shell (4), and is characterized in that: have cavity (8) in ceramic casing (4), cavity (8) inside is provided with PTC heating plate (6), electrode slice (5), two have all been pasted to PTC heating plate (6) both sides face electrode slice (5) have welded wire (2) respectively, ceramic casing (4) top is provided with end cover (3), ceramic casing (4) with end cover (3) threaded connection, end cover (3) top is fixed with sealing plug (1), wire (2) run through ceramic casing (4), end cover (3), sealing plug (1) and extend to ceramic casing (4) outside.

2. A special ceramic component for semiconductors as claimed in claim 1, characterized by the fact that the ceramic shell (4) and the end cap (3) have the same outer diameter.

3. A special ceramic component for semiconductors as claimed in claim 2, characterized by the fact that the top of the end cap (3) is provided with a notch for the installation of the sealing plug (1).

4. A special semiconductor ceramic element according to claim 1, characterized in that the ceramic housing (4), the end cap (3) and the sealing plug (1) are coaxially arranged.

5. A special ceramic component for semiconductors according to claim 3, characterized in that the sealing plug (1) comprises a handle (10) and a plug body (11), the plug body (11) is provided with a wire guide hole (9), and the handle (10) is fixed on the top of the plug body (11).

6. A special ceramic component for semiconductors as claimed in claim 1, characterized by the fact that the bottom end of the ceramic housing (4) is provided with a temperature sensor (7).