CN210403385U

CN210403385U - High-temperature-resistant thermistor

Info

Publication number: CN210403385U
Application number: CN201921266669.XU
Authority: CN
Inventors: 张德明; 尤红光; 邵黎江
Original assignee: Shenzhen Wilda Electronics Co ltd
Current assignee: Shenzhen Wilda Electronics Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-04-24
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a high temperature resistance thermistor, which comprises a main body, wherein a resistance core is arranged at the center of the interior of the main body, a snap ring is embedded on one side of the surface of the resistance core, and a resin layer is filled in the area around the resistance core in the main body; the arranged copper wire is connected with the retaining ring in a winding mode, and meanwhile the retaining ring is abutted against the resistance core by the copper wire, so that the connection stability of the copper wire and the resistance core is ensured, and the resistance core and the copper wire are prevented from being broken due to fusion because the number of turns of the copper wire is too large; through unscrewing and screwing up the screw, conveniently communicate first pin and second pin or dismantle, can change the length of second pin or change different thermistors according to the in service behavior, improve the convenience of structural use.

Description

High-temperature-resistant thermistor

Technical Field

The utility model relates to a resistance field, in particular to high temperature resistance thermistor.

Background

Resistance is a physical quantity that indicates, in physics, the magnitude of the current blocking effect of a conductor. The higher the resistance of the conductor, the greater the effect of the conductor on the current. Different conductors generally have different resistances, which is a property of the conductor itself. The resistance will cause a change in electron current flux, the smaller the resistance, the greater the electron current flux and vice versa.

The existing thermistor is a sensitive element, belongs to a semiconductor device, and is easy to age and poor in stability, so that the element needs to be replaced in time.

Accordingly, those skilled in the art have provided a thermistor resistant to high temperature to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a high temperature resistant thermistor, which can effectively solve the problems in the background art.

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

the utility model provides a high temperature resistance thermistor, includes the main part, the inside center of main part is equipped with the resistance core, and the embedded buckle that is provided with in one side on resistance core surface, the regional packing that is located around the resistance core in the main part has the resin layer, the supporting welding in main part bottom has two sets of first pins, and the one end of first pin inserts in the main part to be connected through setting up the copper wire between with the buckle, the other end of first pin is equipped with the second pin, and the link of second pin and first pin is through setting up card line structural connection.

Preferably, the main body and the resistor core are both of a sheet-shaped disc structure, and the main body and the resistor core form concentric circles in the same plane.

Preferably, four groups of through grooves are uniformly formed in the positions of concentric circles formed by the main body and the resistor core, and the four groups of through grooves are distributed in a cross shape.

Preferably, the retaining ring is of a dumbbell-shaped structure, one end of the copper wire is wound on the inner wall of the retaining ring and attached to the resistor core, and the other end of the copper wire is welded with the first pin.

Preferably, the wire clamping structure comprises an upper clamping seat, a lower clamping seat and a torsion spring for connecting the upper clamping seat and the lower clamping seat, wherein the centers of the movable binding surfaces of the upper clamping seat and the lower clamping seat are respectively provided with a limiting hole, and the diameter of the limiting hole is equal to that of the pin.

Preferably, a threaded hole is formed in the center of the upper clamping seat, a screw is spirally arranged in the threaded hole, the threaded hole and the limiting hole are mutually perpendicular and distributed, and a rubber ferrule is sleeved at the top end of the screw.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the resistance core and the main body are provided with the through grooves on the surface of the main body, so that the contact area between the main body and the air is greatly increased, the overhigh surface temperature of the main body is avoided, and the through grooves can also be used as heat dissipation holes;

2. the utility model discloses a set up copper wire and buckle structure, the copper wire is connected with the buckle through the winding mode, and the copper wire makes the buckle offset with the resistance core simultaneously, has guaranteed the stability that the copper wire is connected with the resistance core, because the number of turns that the copper wire twines is too much, avoids resistance core and copper wire to produce because of the phenomenon of taking place the melting and splitting;

3. the utility model discloses a set up card line structure, through unscrewing and screwing up the screw, conveniently communicate first pin and second pin or dismantle, can change the length of second pin or change different thermistor according to in service behavior, improved the convenience of structural use.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the wire-clamping structure of the present invention;

fig. 3 is a schematic view of the buckle structure of the present invention.

In the figure: 1. a main body; 2. a resistor core; 3. a resin layer; 4. a retaining ring; 5. a copper wire; 6. a wire clamping structure; 61. an upper clamping seat; 62. a lower clamping seat; 7. a screw; 8. a first pin; 9. a second pin; 10. a threaded hole; 11. and a limiting hole.

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 is further described below with reference to the following embodiments.

Referring to fig. 1-3, a high temperature resistant thermistor includes a main body 1, a resistor core 2 is arranged in the center of the main body 1, a snap ring 4 is embedded in one side of the surface of the resistor core 2, a resin layer 3 is filled in the area around the resistor core 2 in the main body 1, and the resin layer 3 can protect the surrounding structure when heat is generated in the structure;

the bottom end of the main body 1 is welded with two groups of first pins 8 in a matched manner, one ends of the first pins 8 are inserted into the main body 1 and connected with the retaining ring 4 through the copper wire 5, the other ends of the first pins 8 are provided with second pins 9, and the connecting ends of the second pins 9 and the first pins 8 are connected through the wire clamping structures 6.

Referring to fig. 1, the body 1 and the resistor core 2 are both of a sheet-shaped disc structure, and the body 1 and the resistor core 2 form concentric circles on the same plane.

Referring to fig. 1, four groups of through grooves are uniformly arranged at the position of a concentric circle formed by the main body 1 and the resistance core 2, and the four groups of through grooves are distributed in a cross shape.

Through adopting above-mentioned technical scheme, set up resistance core 2 and main part 1, set up logical groove simultaneously on 1 surface in main part, the increase of very big limit the area of contact of main part 1 with the air, avoid 1 surface temperature in main part too high, lead to the groove simultaneously and also can regard as the louvre to use.

Referring to fig. 1 and 3, the retaining ring 4 is in a dumbbell-shaped structure, one end of a copper wire 5 is wound on the inner wall of the retaining ring 4 and attached to the resistor core 2, and the other end of the copper wire 5 is welded to the first pin 8.

Through adopting above-mentioned technical scheme, set up copper wire 5 and buckle 4 structure, copper wire 5 is connected with buckle 4 through winding mode, and copper wire 5 makes buckle 4 offset with resistance core 2 simultaneously, has guaranteed the stability that copper wire 5 is connected with resistance core 2, because the winding number of turns of copper wire 5 is too much, can avoid resistance core 2 and copper wire 5 because of taking place the cracked phenomenon production of melting.

Referring to fig. 2, the wire clamping structure 6 includes an upper clamping seat 61, a lower clamping seat 62 and a torsion spring for connecting the upper and lower clamping seats, the centers of the movable binding surfaces of the upper clamping seat 61 and the lower clamping seat 62 are both provided with a limiting hole 11, and the diameter of the limiting hole 11 is equal to the diameter of the pin.

Referring to fig. 2, a threaded hole 10 is formed in the center of the upper clamping base 61, a screw 7 is spirally arranged in the threaded hole 10, the threaded hole 10 and the limiting hole 11 are vertically distributed, and a rubber ferrule is sleeved at the top end of the screw 7.

Through adopting above-mentioned technical scheme, set up card line structure 6, through unscrewing and screwing up screw 7, conveniently communicate or dismantle first pin 8 and second pin 9, can change the length of second pin 9 or change different thermistors according to the in service behavior, improved the convenience of structural use.

The working principle is as follows: insert the spacing hole 11 that is located lower cassette 62 with second pin 9 at first, then with last cassette 61 and the separation of lower cassette 62, insert first pin 8 in the spacing hole 11 that is located last cassette 61, owing to twist reverse the elasticity restoring force of talking about the spring, make and go up cassette 61 and lower cassette 62 and merge the laminating, first pin 8 and second pin 9 laminate each other this moment, screw 7 is twisted into threaded hole 10 at last, make the bottom of screw 7 offset with first pin 8, thereby guarantee first pin 8 and second pin 9's rigidity, at the during operation like this, it is convenient to dismantle at the work like this, can in time change.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high temperature resistant thermistor comprising a body (1), characterized in that: the novel resistor is characterized in that a resistor core (2) is arranged at the center of the interior of the main body (1), a buckle (4) is embedded in one side of the surface of the resistor core (2), a resin layer (3) is filled in an area, located around the resistor core (2), of the main body (1), two groups of first pins (8) are welded at the bottom end of the main body (1) in a matched mode, one ends of the first pins (8) are inserted into the main body (1) and connected with the buckle (4) through copper wires (5), second pins (9) are arranged at the other ends of the first pins (8), and the second pins (9) are connected with the connecting ends of the first pins (8) through wire clamping structures (6).

2. A high temperature resistant thermistor according to claim 1, characterized in that: the main body (1) and the resistor core (2) are both of sheet-shaped disc structures, and the main body (1) and the resistor core (2) form concentric circles on the same plane.

3. A high temperature resistant thermistor according to claim 2, characterized in that: the concentric circle position department that main part (1) and resistance core (2) formed evenly is provided with four groups and leads to the groove, and four groups lead to the groove and be the cross distribution.

4. A high temperature resistant thermistor according to claim 1, characterized in that: the resistor is characterized in that the retaining ring (4) is of a dumbbell-shaped structure, one end of the copper wire (5) is wound on the inner wall of the retaining ring (4) and attached to the resistor core (2), and the other end of the copper wire (5) is welded with the first pin (8) mutually.

5. The high temperature resistant thermistor according to claim 4, characterized in that: the wire clamping structure (6) comprises an upper clamping seat (61), a lower clamping seat (62) and a torsion spring for connecting the upper clamping seat and the lower clamping seat, wherein a limiting hole (11) is formed in the center of the movable binding surface of the upper clamping seat (61) and the center of the movable binding surface of the lower clamping seat (62), and the diameter of the limiting hole (11) is equal to that of the pin.

6. A high temperature resistant thermistor according to claim 5, characterized in that: the center of the upper clamping seat (61) is provided with a threaded hole (10), a screw (7) is spirally arranged in the threaded hole (10), the threaded hole (10) and the limiting hole (11) are mutually and vertically distributed, and the top end of the screw (7) is sleeved with a rubber ferrule.