CN217280279U

CN217280279U - Easily assemble bayonet NTC thermistor

Info

Publication number: CN217280279U
Application number: CN202221165767.6U
Authority: CN
Inventors: 叶传明; 吴阳; 姜爽; 程铃铃
Original assignee: Hefei Ximu Technology Co ltd
Current assignee: Hefei Ximu Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-23
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses an easily assemble bayonet NTC thermistor, including the circuit board, set up in line hole on the circuit board, be fixed in locating rack, resistance body on the circuit board, set up two pins on the resistance body, the constant head tank has been seted up on the locating rack, the recess has been seted up to the constant head tank lateral wall, the inside centre gripping subassembly that is used for fixing the resistance body that is provided with of recess. The utility model discloses in, adopt the locating rack, the centre gripping subassembly, when needs are fixed to this resistance body, pass the line hole with the pin of resistance body, the resistance body sets up in the constant head tank, resistance body and holding strip contact, under the elasticity of spring, two holding strips are fixed this resistance body, avoid like this droing at the in-process resistance body of welding pin, this mode is convenient for assemble, and fixed effectual, adopt the mounting, can fix this resistance body from the top, guarantee the stability of resistance body in the use like this, prevent to drop.

Description

Easily assemble bayonet NTC thermistor

Technical Field

The utility model relates to a thermistor technical field specifically is an easily assemble bayonet NTC thermistor.

Background

The NTC thermistor is a thermal sensitive ceramic component which is made by taking transition metal oxide as a main raw material and adopting an electronic ceramic process, and is a sensor resistor with the resistance value reduced along with the increase of temperature. The method is widely applied to various electronic components, such as temperature sensors, resettable fuses, automatic adjusting heaters and the like.

In the existing assembly plug-in NTC thermistor, pins are usually directly inserted into wire holes of a circuit board during connection, and then the circuit board is welded, but the conventional assembly plug-in NTC thermistor does not have a fixed structure and is easy to shift or fall off during welding.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an easily assemble bayonet NTC thermistor has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an easy assembly bayonet NTC thermistor, includes the circuit board, sets up the line hole on the circuit board, is fixed in locating rack, the resistance body on the circuit board, sets up two pins on the resistance body, the constant head tank has been seted up on the locating rack, the recess has been seted up to the constant head tank lateral wall, the inside centre gripping subassembly that is used for fixing the resistance body that is provided with of recess.

Preferably, the clamping assembly comprises a plurality of springs fixed on the inner wall of the groove, the other ends of the springs are fixedly connected with clamping strips, and chamfers are formed in the upper ends of the clamping strips.

Preferably, the resistor fixing device further comprises a fixing piece for locking the resistor body, and the front side wall and the rear side wall of the positioning frame are fixedly connected with positioning sleeves.

Preferably, the mounting includes the top cap, the elasticity strip that two symmetries of top cap bottom fixedly connected with set up, the inside draw-in groove that has of position sleeve, elasticity strip lower extreme joint in inside the draw-in groove.

Preferably, the clamping groove and the elastic strip are both L-shaped.

Preferably, the positioning groove bottom is the arc, diapire fixedly connected with rubber pad in the positioning groove.

(III) advantageous effects

The utility model provides an easily assemble bayonet NTC thermistor possesses following beneficial effect:

1. the utility model discloses in, adopt locating rack, centre gripping subassembly, when needs are fixed this resistance body, pass the line hole with the pin of resistance body, the resistance body sets up in the constant head tank, and resistance body and holding strip contact are under the elasticity of spring, and two holding strips are fixed this resistance body, avoid like this droing at the in-process resistance body of welding pin, and this mode is convenient for assemble, and fixed effectual.

2. The utility model discloses in, adopt elasticity strip, position sleeve, constant head tank, with the top cap joint at resistance body top, then hold between the fingers the elasticity strip of both sides, insert elasticity strip lower extreme from the position sleeve top, make the complete joint of lower extreme of elasticity strip inside the draw-in groove, fix this resistance body from the top, guarantee the stability of resistance body in the use like this, prevent to drop.

Drawings

Fig. 1 is an explosion structure diagram of an easy-to-assemble plug-in NTC thermistor according to the present invention;

fig. 2 is an assembly structure diagram of an easy-to-assemble plug-in NTC thermistor according to the present invention;

fig. 3 is a sectional structure diagram of an easy-to-assemble plug-in NTC thermistor according to the present invention.

In the figure: 1. a circuit board; 2. a wire hole; 3. a resistor body; 4. a pin; 5. a positioning frame; 6. positioning a groove; 7. clamping strips; 8. a positioning sleeve; 9. a spring; 10. a groove; 11. a top cover; 12. an elastic strip; 13. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides an easy assembly bayonet NTC thermistor, including circuit board 1, set up the line hole 2 on circuit board 1, be fixed in locating rack 5 on the circuit board 1, resistance body 3, set up two pins 4 on resistance body 3, locating slot 6 has been seted up on locating rack 5, locating slot 6 lateral wall is seted up fluted 10, recess 10 inside is provided with and is used for the fixed centre gripping subassembly to resistance body 3, the centre gripping subassembly is including a plurality of springs 9 that are fixed in recess 10 inner wall, the common fixedly connected with holding strip 7 of the spring 9 other end, the chamfer has been seted up to holding strip 7 upper end, be convenient for at the in-process that resistance body 3 promoted downwards, with 3 propelling movement of resistance body between two holding strips 7.

When needs are installed fixedly to this resistance body 3, pin 4 with resistance body 3 passes line hole 2, resistance body 3 sets up in constant head tank 6, the contact of bottom wall in 3 bottoms of resistance body and the constant head tank 6, both sides and the contact of holding strip 7 around the resistance body 3, under the elasticity of spring 9, two holding strips 7 are fixed this resistance body 3, avoid like this dropping at the in-process resistance body 3 of welding pin 4, the assembly of being convenient for of this mode, and fixed effectual, then the outside electric welding gun of rethread welds pin 4.

For more firm fix this resistance body 3, carry out following design, still include the mounting to 3 locking of resistance body, the equal fixedly connected with position sleeve 8 of lateral wall around 5 of locating rack, the mounting includes top cap 11, the elastic strip 12 that two symmetries of top cap 11 bottom fixedly connected with set up, the inside draw-in groove 13 that has of

position sleeve

8, 12 lower extreme joints of elastic strip are inside draw-in groove 13.

With 11 joints of top cap at 3 tops of resistor body, then hold between the fingers the elasticity strip 12 of both sides, insert elasticity strip 12 lower extreme from 8 tops of position sleeve, make the complete joint of lower extreme of elasticity strip 12 terminal at draw-in groove 13, loosen elasticity strip 12 this moment, elasticity strip 12 resumes original state, realize being connected between elasticity strip 12 and draw-in groove 13, fix this resistor body 3 from the top like this, guarantee the stability in the use of resistor body 3 like this, prevent to drop, and the service life is prolonged.

In order to ensure that the clamping groove 13 is matched with the elastic strip 12, the clamping groove 13 and the elastic strip 12 are designed to be L-shaped, so that the elastic strip 12 cannot fall off from the inside of the clamping groove 13.

In order to be adapted to the resistor body 3, the bottom of the positioning groove 6 is arc-shaped, a rubber pad is fixedly connected to the inner bottom wall of the positioning groove 6, abrasion of the rubber pad to the resistor body 3 is reduced, the service life is prolonged, and the damping and energy-absorbing effects are achieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An easy-to-assemble plug-in NTC thermistor is characterized in that: including circuit board (1), set up line hole (2) on circuit board (1), be fixed in locating rack (5), resistance body (3) on circuit board (1), set up two pins (4) on resistance body (3), locating slot (6) have been seted up on locating rack (5), locating slot (6) lateral wall is seted up flutedly (10), recess (10) inside be provided with be used for the centre gripping subassembly fixed to resistance body (3).

2. The easy-to-assemble insertion-type NTC thermistor according to claim 1, wherein: the clamping assembly comprises a plurality of springs (9) fixed on the inner wall of the groove (10), the other ends of the springs (9) are fixedly connected with clamping strips (7) together, and chamfers are formed in the upper ends of the clamping strips (7).

3. The easy-to-assemble insertion-type NTC thermistor according to claim 1, wherein: the resistor fixing device is characterized by further comprising a fixing piece for locking the resistor body (3), and the front side wall and the rear side wall of the positioning frame (5) are fixedly connected with positioning sleeves (8).

4. The easy-to-assemble insertion-type NTC thermistor according to claim 3, wherein: the mounting includes top cap (11), two symmetry elastic strip (12) that set up of top cap (11) bottom fixedly connected with, draw-in groove (13) have inside position sleeve (8), elastic strip (12) lower extreme joint in inside draw-in groove (13).

5. The easy-to-assemble inserted NTC thermistor according to claim 4, wherein: the clamping groove (13) and the elastic strip (12) are both L-shaped.

6. The easy-to-assemble insertion-type NTC thermistor according to claim 1, wherein: the bottom of the positioning groove (6) is arc-shaped, and a rubber pad is fixedly connected to the inner bottom wall of the positioning groove (6).