CN210006545U

CN210006545U - chip PTC thermistors suitable for use in high humidity environment

Info

Publication number: CN210006545U
Application number: CN201921074986.1U
Authority: CN
Inventors: 谭焕志
Original assignee: DONGGUAN LONGYANG ELECTRONICS TECHNOLOGY CO LTD
Current assignee: DONGGUAN LONGYANG ELECTRONICS TECHNOLOGY CO LTD
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-01-31
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an piece formula PTC thermistor that is applicable to under high humid environment and uses, its structure includes inside moisture absorption bag, insulating casing, the electrode preforming, condensation heat dissipation frame is prevented in the outside, the PTC generates heat the piece, connect the pin, condensation heat dissipation frame is prevented in the outside and welds respectively in insulating casing's the left and right sides, the upper and lower both ends of insulating casing internal surface all are equipped with inside moisture absorption bag, the center of insulating casing internal surface is located to the PTC piece that generates heat, the left and right sides that the PTC generates heat the piece is located respectively to the electrode preforming, connect the pin and connect in the left and right sides of insulating casing lower extreme surface, the utility model discloses a be equipped with condensation heat dissipation frame and inside moisture absorption bag, can effectually avoid leading to the internal line short circuit because of the too high dewfall that arouses of external environment humidity when using under.

Description

chip PTC thermistors suitable for use in high humidity environment

Technical Field

The utility model discloses a chip PTC thermistor that are applicable to under the high humid environment use belongs to chip PTC thermistor technical field.

Background

The PTC thermistor is types of thermistors, the resistance value of the PTC thermistor shows step increase along with the rise of the temperature of the PTC thermistor body, and the higher the temperature is, the larger the resistance value is.

Because the PTC thermistor belongs to a heating element, when the PTC thermistor is used in a high-humidity environment, the internal circuit is often short-circuited due to dew condensation caused by overhigh humidity, and the service life and the use safety of equipment are greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing chip PTC thermistor that are applicable to under the high humid environment use to solve because PTC thermistor itself just belongs to heating element, often arouse the dewfall because of humidity is too high when using under the high humid environment and lead to the inner line short circuit, influenced the life and the safe in utilization's of equipment problem in the very big degree.

In order to achieve the purpose, the utility model discloses a realize through following technical scheme that chip PTC thermistors that are applicable to under the high humid environment use, its structure includes inside moisture absorption bag, insulating casing, electrode preforming, outside condensation heat dissipation frame, PTC generate heat piece, connection pin, outside condensation heat dissipation frame is welded respectively in the left and right sides of insulating casing, the upper and lower both ends of insulating casing internal surface all are equipped with inside moisture absorption bag, PTC generates heat the piece and locates the center of insulating casing internal surface, the electrode preforming is located the left and right sides of PTC generates heat piece respectively, connection pin connects in the left and right sides of insulating casing lower extreme surface.

, the inner moisture absorption bag is composed of activated carbon and an outer packaging bag.

, the inner surface of the outer packaging bag is provided with activated carbon.

, the external anti-condensation heat dissipation frame is composed of an anti-condensation outer frame and an anti-condensation inner frame.

, welding an inner anti-condensation frame on the inner surface of the outer anti-condensation frame.

, the insulating shell is made of ceramic.

, the external anti-condensation heat dissipation frame is made of stainless steel.

Advantageous effects

Through being equipped with condensation heat dissipation frame, increased PTC thermistor's convection area in the use, the heat dissipation has been accelerated, PTC thermistor surface produces the condensation under the high humid environment, through being equipped with inside moisture absorption bag, can carry out moisture absorption treatment to PTC thermistor internal environment in the use, outside condensation infiltration leads to the inside internal line short circuit of PTC thermistor in avoiding the course of the work, has improved the life and the safe in utilization of equipment.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of chip PTC thermistors suitable for use in high humidity environments.

Fig. 2 is a schematic view of the structure of the internal moisture absorption bag of the present invention.

Fig. 3 is a schematic structural view of the anti-condensation outer frame of the present invention.

In the figure: the electrode comprises an internal moisture absorption bag-1, an insulating shell-2, an electrode pressing sheet-3, an external anti-condensation heat dissipation frame-4, a PTC heating sheet-5, a connecting pin-6, active carbon-101, an external packaging bag-102, an anti-condensation outer frame-401 and an anti-condensation inner frame-402.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described in with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides chip PTC thermistors suitable for use in a high humidity environment, wherein chip PTC thermistors suitable for use in a high humidity environment comprise an inner moisture absorption bag 1, an insulating housing 2, an electrode pressing sheet 3, an outer anti-condensation heat dissipation frame 4, a PTC heating sheet 5, and connection pins 6, the outer anti-condensation heat dissipation frame 4 is welded to the left and right sides of the insulating housing 2, the inner moisture absorption bag 1 is disposed at both the upper and lower ends of the inner surface of the insulating housing 2, the PTC heating sheet 5 is disposed at the center of the inner surface of the insulating housing 2, the electrode pressing sheet 3 is disposed at both the left and right sides of the PTC heating sheet 5, the connection pins 6 are connected to the left and right sides of the lower end surface of the insulating housing 2, the inner moisture absorption bag 1 is composed of activated carbon 101 and an outer packaging bag 102, the inner surface of the outer packaging bag 102 is provided with activated carbon 101, the outer anti-condensation heat dissipation frame 4 is composed of an outer anti-condensation frame 401 and an anti-condensation frame 402, the inner frame is welded with a non-condensation steel frame.

The utility model discloses a chip PTC thermistor that is applicable to under high humid environment use, its theory of operation does through being equipped with condensation heat dissipation frame, the convection area of PTC thermistor has been increased in the use, the heat dissipation has been accelerated, avoid PTC thermistor surface production condensation under the high humid environment, through being equipped with inside moisture absorption bag, can carry out moisture absorption treatment to PTC thermistor internal environment in the use, outside condensation infiltration leads to the inside short circuit of internal line to PTC thermistor in avoiding the course of the work, the life and the safe in utilization of equipment have been improved.

The utility model provides a problem because PTC thermistor itself just belongs to heating element, often arouses the dewfall because humidity is too high when using under high humid environment to lead to the internal circuit short circuit, has influenced the life and the safe in utilization of equipment in the very big degree, the utility model discloses a be equipped with condensation-proof heat dissipation frame and inside moisture absorption bag, can effectually avoid arousing the dewfall because of external environment humidity is too high when using under high humid environment to lead to the internal circuit short circuit, improved the life and the safe in utilization of equipment.

Having thus shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting at , and that the scope of the invention be determined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

The chip PTC thermistor is structurally characterized in that the external anti-condensation heat dissipation frame (4) is welded to the left side and the right side of the insulating shell (2) respectively, the internal moisture absorption bags (1) are arranged at the upper end and the lower end of the inner surface of the insulating shell (2), the PTC heating piece (5) is arranged at the center of the inner surface of the insulating shell (2), the electrode pressing pieces (3) are arranged on the left side and the right side of the PTC heating piece (5) respectively, and the connecting pins (6) are connected to the left side and the right side of the lower end surface of the insulating shell (2).
2. chip PTC thermistor suitable for use in high humidity environment, according to claim 1, wherein the inner moisture absorption bag (1) is composed of activated carbon (101) and outer packaging bag (102).
3. chip PTC thermistor according to claim 2, wherein the inner surface of the outer packaging bag (102) is provided with activated carbon (101).
4. chip PTC thermistor suitable for use in high humidity environment, according to claim 1, wherein the external anti-condensation heat sink (4) is composed of an outer anti-condensation frame (401) and an inner anti-condensation frame (402).
5. chip PTC thermistor suitable for use in high humidity environment, according to claim 4, wherein the inner condensation-proof frame (402) is welded to the inner surface of the outer condensation-proof frame (401).