CN218004507U

CN218004507U - Thermistor for surge suppression circuit

Info

Publication number: CN218004507U
Application number: CN202221807791.5U
Authority: CN
Inventors: 王耀华
Original assignee: Huaian Mintong Sensor Technology Co ltd
Current assignee: Huaian Mintong Sensor Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-12-09
Anticipated expiration: 2032-07-13

Abstract

The utility model relates to a thermistor technical field just discloses a thermistor for surge suppression circuit, including thermistor original paper, two pins, sealing layer and isolation layer, two the pin sets up the bottom at the thermistor original paper respectively, the sealing layer parcel sets up the outside at the thermistor original paper, the isolation layer parcel sets up the outside at the sealing layer, the outside of isolation layer is provided with the casing, the bottom of thermistor original paper is provided with the fixed plate, the inside of fixed plate is provided with two solid fixed cylinder, two solid fixed cylinder sets up the outside at two pins respectively, solid fixed cylinder's inside is provided with a plurality of splint, splint press from both sides tightly and set up on the lateral wall of pin. The utility model discloses can effectually slow down the impact, and the shell can realize local displacement, prevents to take place deformation, and the influence is suitable for.

Description

Thermistor for surge suppression circuit

Technical Field

The utility model relates to a thermistor technical field especially relates to a thermistor for surge suppression circuit.

Background

The surge is a spike pulse with high rising speed and short duration, which causes a surge phenomenon in a circuit, when a switching power supply is powered on, a high surge current is generated, and in a known surge circuit, a thermistor is needed to ensure the stability of the circuit.

Through retrieval, chinese patent publication No. CN215770727U provides a thermistor, which includes a case, a bottom cover, a connecting wire, a thermistor element and a thermal protection component, wherein the bottom cover is installed at an opening at the bottom end of the case to form a protection cavity; the thermistor element and the thermal protection component are accommodated in the protection cavity;

in the above-mentioned patent, in the use to thermistor, only adopt the blotter to carry out certain buffering to thermistor, the range of vibration is less, and the fixed setting of shell, and when the impact force that thermistor received was great, can't effectively slow down the impact, and deformation may take place for the shell simultaneously. Accordingly, the present invention is directed to a thermistor for a surge suppression circuit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the shell can deform when the impact force received by the thermistor is large in the prior art, and providing the thermistor for the surge suppression circuit.

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

the utility model provides a thermistor for surge suppression circuit, includes thermistor original paper, two pins, sealing layer and isolation layer, two the pin sets up the bottom at the thermistor original paper respectively, the sealing layer parcel sets up the outside at the thermistor original paper, the isolation layer parcel sets up the outside at the sealing layer, the outside of isolation layer is provided with the casing, the bottom of thermistor original paper is provided with the fixed plate, the inside of fixed plate is provided with two fixed barrels, two fixed barrels set up the outside at two pins respectively, the inside of fixed barrel is provided with a plurality of splint, splint clamp tightly sets up on the lateral wall of pin, the pin extends to the below of fixed barrel, be provided with a plurality of spouts on the inner wall of casing, the inner wall slip of spout is provided with two blocks of rubber, two the block of rubber is fixedly connected with elastic plate simultaneously to the one side of drinking relatively, the lateral wall of elastic plate compresses tightly the outside of setting at the isolation layer.

Preferably, the sealing layer is filled with a rubber pad, and the isolation layer is formed by laying a plastic film.

Preferably, the top of a fixed section of thick bamboo encircles a plurality of buffering box bodys of fixedly connected with, the bottom of casing is encircleed and is provided with a plurality of stoppers, and is a plurality of the stopper extends to the inside of a plurality of buffering box bodys respectively.

Preferably, the limiting block is T-shaped, and a plurality of rubber balls are filled in the buffering box body.

Preferably, the inner wall of the top end of the buffering box body is provided with a rubber sealing ring, and the inner wall of the rubber sealing ring is attached to the side wall of the limiting block.

Preferably, the outside that the pin is located the fixed plate below is provided with the support ring, the both sides inner wall of support ring rotates respectively and is connected with the bull stick, connecting rod and torsional spring have been cup jointed on the pole wall of bull stick simultaneously, the one end fixed connection of torsional spring is at the inner wall of support ring, the other end and the connecting rod fixed connection of torsional spring, the articulated slider that is provided with in top of connecting rod, a plurality of bar grooves have been seted up to the bottom of fixed plate, the slider slides and sets up the inner wall in the bar groove.

Preferably, the cross section of slider sets up to trapezoidal, the inner wall in strip shape groove sets up to trapezoidal groove with slider assorted.

Compared with the prior art, the utility model provides a thermistor for surge suppression circuit possesses following beneficial effect:

1. this a thermistor for surge suppression circuit receives elasticity board absorption certain pressure and takes place deformation when the extrusion through the casing, and the rubber piece slides to isolation layer and rubber piece contact along the inner wall of spout, can guarantee to slow down the impact to the thermistor original paper, and the casing takes place the displacement with the counter-impact force, can reduce the possibility of taking place deformation.

2. This a thermistor for surge suppression circuit absorbs certain impact force and slides along the inner wall in strip-shaped groove through the slider, and the connecting rod lasts the swing along the bull stick, can be convenient for the connecting rod to reset under the effect of torsional spring and can slow down the impact effect that the connecting rod received, can play certain protection effect to the pin.

The device does not relate to the part among all the same with prior art or can adopt prior art to realize, the utility model discloses can effectually slow down the impact, and the shell can realize local displacement, prevents to take place deformation, and the influence is suitable for.

Drawings

Fig. 1 is a schematic structural diagram of a thermistor for a surge suppression circuit according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is a perspective view of the structure of the slider in fig. 2.

In the figure: 1 thermistor original paper, 2 pins, 3 sealing layers, 4 isolating layers, 5 casings, 6 fixing plates, 7 fixing cylinders, 8 clamping plates, 9 rubber blocks, 10 elastic plates, 11 buffer box bodies, 12 limiting blocks, 13 rubber balls, 14 rubber sealing rings, 15 supporting rings, 16 rotating rods, 17 connecting rods, 18 sliders and 19 torsion springs.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-2, a thermistor for surge suppression circuit, including thermistor original paper 1, two pins 2, sealing layer 3 and isolation layer 4, two pins 2 set up respectively in the bottom of thermistor original paper 1, sealing layer 3 parcel sets up the outside at thermistor original paper 1, isolation layer 4 parcel sets up the outside at sealing layer 3, the outside of isolation layer 4 is provided with casing 5, the bottom of thermistor original paper 1 is provided with fixed plate 6, the inside of fixed plate 6 is provided with two fixed barrels 7, two fixed barrels 7 set up respectively in the outside of two pins 2, the inside of fixed barrel 7 is provided with a plurality of splint 8, splint 8 press from both sides tightly and set up on the lateral wall of pin 2, pin 2 extends to the below of fixed barrel 7, be provided with a plurality of spouts on the inner wall of casing 5, the inner wall slip of spout is provided with two rubber blocks 9, two rubber blocks 9 are fixed connection with elastic plate 10 simultaneously to drunk one side, the lateral wall of elastic plate 10 compresses tightly and sets up the outside at isolation layer 4, 3 adopts plastic film to lay and forms, isolation layer 4 adopts the sealing layer to lay.

Sealing layer 3 can improve the sealed effect of thermistor original paper 1, and isolation layer 4 adopts plastic film to make, can improve the water-proof effects on thermistor surface, fixed plate 6, solid fixed cylinder 7 and splint 8 can be with the stable centre gripping of pin 2, guarantee the stability of pin 2, when thermistor receives the impact, shell 5 absorbs certain pressure and takes place deformation by elastic plate 10 when receiving the extrusion, the inner wall of spout is slided along rubber block 9 simultaneously, until isolation layer 4 and the lateral wall contact of rubber block 9, thereby can guarantee to slow down the impact to thermistor original paper 1, shell 5 takes place the displacement with the counter-impact simultaneously, can reduce the possibility of taking place the deformation.

Example two

Referring to fig. 2, the top of solid fixed cylinder 7 is encircleed a plurality of buffering box bodies 11 of fixedly connected with, the bottom of casing 5 is encircleed and is provided with a plurality of stoppers 12, a plurality of stoppers 12 extend to a plurality of inside of buffering box body 11 respectively, stopper 12 sets up to the T shape, the inside packing of buffering box body 11 is provided with a plurality of rubber balls 13, the top inner wall of buffering box body 11 is provided with rubber seal 14, rubber seal 14's inner wall laminating sets up on stopper 12's lateral wall.

Stopper 12 is fixed in the bottom of casing 5, and stopper 12 sets up the inner wall at buffering box body 11, can play certain spacing effect to casing 5, prevents that casing 5 from breaking away from, influences the use, and rubber ball 13 can absorb certain impact force when stopper 12 follows casing 5 and removes simultaneously, and rubber seal 14 can prevent that rubber ball 13 from spilling over along buffering box body 11.

EXAMPLE III

Referring to fig. 2-4, the outside that pin 2 is located fixed plate 6 below is provided with support ring 15, the both sides inner wall of support ring 15 rotates respectively and is connected with bull stick 16, connecting rod 17 and torsional spring 19 have been cup jointed on the pole wall of bull stick 16 simultaneously, the one end fixed connection of torsional spring 19 is at the inner wall of support ring 15, the other end and the connecting rod 17 fixed connection of torsional spring 19, the articulated slider 18 that is provided with in top of connecting rod 17, a plurality of bar grooves have been seted up to the bottom of fixed plate 6, slider 18 slides and sets up the inner wall in the bar groove, the cross section of slider 18 sets up to trapezoidal, the inner wall in bar groove sets up to the dovetail groove with slider 18 assorted.

When the pin is connected on the circuit, support ring 15 can compress tightly the surface that sets up at the circuit board, make the one end that connecting rod 17 deviates from support ring 15 promote the slider 18 to slide along the inner wall in strip groove simultaneously, it is balanced under the torsional action of torsional spring 19 until connecting rod 17, can play certain supporting effect to fixed plate 6, when the thermistor original paper receives vibrations impact simultaneously, slider 18 absorbs certain impact force and slides along the inner wall in strip groove, connecting rod 17 continues the swing along bull stick 16, can be convenient for connecting rod 17 to reset under torsional spring 19's effect and can slow down the impact effect that connecting rod 17 received, can play certain protection effect to pin 2.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. A thermistor for a surge suppression circuit, comprising a thermistor element (1), two pins (2), a sealing layer (3) and an isolation layer (4), characterized in that: two pin (2) set up the bottom in thermistor original paper (1) respectively, sealing layer (3) parcel sets up the outside in thermistor original paper (1), isolation layer (4) parcel sets up the outside in sealing layer (3), the outside of isolation layer (4) is provided with casing (5), the bottom of thermistor original paper (1) is provided with fixed plate (6), the inside of fixed plate (6) is provided with two solid fixed cylinder (7), two gu fixed cylinder (7) set up the outside at two pin (2) respectively, gu fixed cylinder's (7) inside is provided with a plurality of splint (8), splint (8) press from both sides tightly to set up on the lateral wall of pin (2), pin (2) extend to the below of solid fixed cylinder (7), be provided with a plurality of spouts on the inner wall of casing (5), the inner wall slip of spout is provided with two rubber block (9), two rubber block (9) are fixed connection with elastic plate (10) simultaneously to the one side of drinking mutually, the lateral wall of elastic plate (10) compresses tightly and sets up in the outside of isolation layer (4).

2. A thermistor for a surge suppression circuit according to claim 1, characterized in that: the sealing layer (3) is filled with rubber pads, and the isolation layer (4) is paved with plastic films.

3. A thermistor for a surge suppression circuit according to claim 1, characterized in that: the top of a fixed section of thick bamboo (7) encircles a plurality of buffering box bodies (11) of fixedly connected with, the bottom of casing (5) is encircleed and is provided with a plurality of stopper (12), and is a plurality of stopper (12) extend to the inside of a plurality of buffering box bodies (11) respectively.

4. A thermistor for a surge suppression circuit according to claim 3, characterized in that: the limiting block (12) is T-shaped, and a plurality of rubber balls (13) are filled in the buffering box body (11).

5. The thermistor for the surge suppression circuit according to claim 3, wherein the inner wall of the top end of the buffer box body (11) is provided with a rubber sealing ring (14), and the inner wall of the rubber sealing ring (14) is attached to the side wall of the limiting block (12).

6. A thermistor for a surge suppression circuit according to claim 1, characterized in that: the outside that pin (2) are located fixed plate (6) below is provided with support ring (15), the both sides inner wall of support ring (15) rotates respectively and is connected with bull stick (16), connecting rod (17) and torsional spring (19) have been cup jointed on the pole wall of bull stick (16) simultaneously, the one end fixed connection of torsional spring (19) is at the inner wall of support ring (15), the other end and connecting rod (17) fixed connection of torsional spring (19), the articulated slider (18) that is provided with in top of connecting rod (17), a plurality of bar grooves have been seted up to the bottom of fixed plate (6), slider (18) slide and set up the inner wall in the bar groove.

7. A thermistor for a surge suppression circuit according to claim 6, characterized in that: the cross section of slider (18) sets up to trapezoidal, the inner wall in bar groove sets up to the trapezoidal groove with slider (18) assorted.