CN210837333U

CN210837333U - Voltage dependent resistor

Info

Publication number: CN210837333U
Application number: CN201922385940.8U
Authority: CN
Inventors: 李忠
Original assignee: Wuxi Naiwei Technology Co ltd
Current assignee: Wuxi Naiwei Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-06-23
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a piezoresistor, including the resistance core, the avris of resistance core is provided with the electrode, one side of electrode has seted up the draw-in groove, the avris of resistance core is fixed with the fixture block, the fixture block is located the inside of draw-in groove, one side of electrode has seted up the recess, the bottom of recess is provided with the spread groove, the inside of recess is installed wiring end, the tip of wiring end is provided with the connecting rod, the connecting rod is located the inside of spread groove, the wiring end runs through the inside of second insulating sleeve, the tip of wiring end has seted up the wiring mouth; the utility model discloses the tip design of wiring end is "L" style of calligraphy structure to increased the joint strength between wiring end and the electrode, thereby increased the pull resistance between wiring end and the electrode, the effectual life who prolongs piezo-resistor, another tip design of wiring end is sheet structure simultaneously, thereby makes things convenient for piezo-resistor to pass through wiring mouth and wiring end and installs on the electric wire.

Description

Voltage dependent resistor

Technical Field

The utility model belongs to the technical field of piezo-resistor, concretely relates to piezo-resistor.

Background

The piezoresistor is a voltage-limiting type protection device. By utilizing the nonlinear characteristic of the piezoresistor, when overvoltage appears between two poles of the piezoresistor, the piezoresistor can clamp the voltage to a relatively fixed voltage value, thereby realizing the protection of a post-stage circuit.

However, most of the terminals on the existing piezoresistors are designed into cylindrical wires, so that the connection strength between the terminals and electrodes is low, the terminals are easy to be pulled and damaged, and the terminals designed in such a way are not beneficial to the installation of the piezoresistors on electric wires, so that the piezoresistors are proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piezo-resistor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: varistor, including the resistance core, the avris of resistance core is provided with the electrode, the draw-in groove has been seted up to one side of electrode, the avris of resistance core is fixed with the fixture block, the fixture block is located the inside of draw-in groove, the outside of resistance core and electrode all is provided with first insulating cover, the outside of first insulating cover is provided with the insulating cover of second, one side of electrode is seted up flutedly, the bottom of recess is provided with the spread groove, the internally mounted of recess has the wiring end, the tip of wiring end is provided with the connecting rod, the connecting rod is located the inside of spread groove, the wiring end runs through in the inside of the insulating cover of second, the wiring mouth has been seted up to the tip of.

Preferably, the electrodes are provided in two, the electrodes being symmetrically arranged about a central axis of the resistive core.

Preferably, the fixture block is designed to be a trapezoidal structure, and the fixture block is connected with the clamping groove in a clamping manner.

Preferably, the second insulating sleeve is connected with the first insulating sleeve in a sticking mode, and the inner side of the second insulating sleeve is connected with the outer side of the terminal in a sticking mode.

Preferably, the wiring terminal is designed into an L-shaped structure, and the wiring terminal and the groove are connected through clamping type soldering tin.

Preferably, the connecting rods are distributed at the end parts of the wiring ends at equal intervals, and the connecting rods are connected with the connecting grooves in a clamping mode.

Preferably, the wiring port is provided with two, and the inner side of the wiring port is designed to be of an arc-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the tip design of wiring end is "L" style of calligraphy structure, thereby the joint strength between wiring end and the electrode has been increased, thereby the pull resistance between wiring end and the electrode has been increased, the effectual life who prolongs piezo-resistor, another tip design of wiring end is the sheet structure simultaneously, thereby make things convenient for piezo-resistor to pass through wiring mouth and wiring end and install on the electric wire, be provided with draw-in groove and fixture block simultaneously, when draw-in groove and fixture block, can make the outside of resistance core and electrode just align, thereby make things convenient for resistance core and electrode equipment together.

Drawings

FIG. 1 is a schematic view of the front view of the internal structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the external structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

in the figure: 1. a resistor core; 2. an electrode; 3. a card slot; 4. a clamping block; 5. a first insulating sleeve; 6. a second insulating sleeve; 7. a groove; 8. connecting grooves; 9. a terminal; 10. a connecting rod; 11. and a wiring port.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: varistor, including resistance core 1, resistance core 1's avris is provided with electrode 2, draw-in groove 3 has been seted up to one side of electrode 2, resistance core 1's avris is fixed with fixture block 4, fixture block 4 is located the inside of draw-in groove 3, resistance core 1 and electrode 2's the outside all is provided with first insulating collar 5, first insulating collar 5's the outside is provided with second insulating collar 6, recess 7 has been seted up to one side of electrode 2, the bottom of recess 7 is provided with spread groove 8, the internally mounted of recess 7 has wiring end 9, the tip of wiring end 9 is provided with connecting rod 10, connecting rod 10 is located spread groove 8's inside, wiring end 9 runs through the inside in second insulating collar 6, wiring mouth 11 has been seted up to the tip of wiring end 9.

The electrodes 2 are provided in two, and the electrodes 2 are symmetrically disposed about the central axis of the resistive core 1 so that current can pass through the resistive core 1.

The fixture block 4 is designed to be of a trapezoid structure, the fixture block 4 is connected with the clamping groove 3 in a clamping mode, and therefore when the fixture block 4 is clamped with the clamping groove 3, the resistor core 1 and the electrode 2 can be just in butt joint.

The second insulating sleeve 6 is connected with the first insulating sleeve 5 in a sticking mode, the inner side of the second insulating sleeve 6 is connected with the outer side of the wiring end 9 in a sticking mode, the sealing performance is improved, and a good waterproof effect is achieved.

Wiring end 9 designs for "L" style of calligraphy structure, and wiring end 9 is connected for the soldering tin of snap-on formula with recess 7, and connecting rod 10 is connected for the block at the tip of wiring end 9 equidistant distribution, connecting rod 10 and spread groove 8, has increased the joint strength between wiring end 9 and the electrode 2 to the probability of damage when dragging has been reduced.

Wiring mouth 11 is provided with two, and wiring mouth 11's inboard design is the arc structure, makes things convenient for external electric wire to pass through wiring mouth 11 to fix on wiring end 9.

The utility model discloses a theory of operation and use flow: the device is when using, the tip design of at first wiring end 9 is "L" style of calligraphy structure, thereby the joint strength between wiring end 9 and electrode 2 has been increased, thereby the pull resistance between wiring end 9 and electrode 2 has been increased, the effectual life who prolongs piezo-resistor, another tip design of wiring end 9 is sheet structure simultaneously, thereby make things convenient for piezo-resistor to pass through wiring mouth 11 and wiring end 9 and install on the electric wire, be provided with draw-in groove 3 and fixture block 4 simultaneously, when draw-in groove 3 and fixture block 4 block, can make the outside of resistance core 1 and electrode 2 just align, thereby make things convenient for resistance core 1 and electrode 2 equipment together.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Varistor, including resistance core (1), its characterized in that: an electrode (2) is arranged on the side of the resistor core (1), a clamping groove (3) is formed in one side of the electrode (2), the side of the resistor core (1) is fixed with a fixture block (4), the fixture block (4) is positioned in the clamping groove (3), the outer sides of the resistance core (1) and the electrode (2) are both provided with a first insulating sleeve (5), a second insulating sleeve (6) is arranged outside the first insulating sleeve (5), a groove (7) is formed in one side of the electrode (2), a connecting groove (8) is formed in the bottom of the groove (7), a wiring terminal (9) is arranged in the groove (7), a connecting rod (10) is arranged at the end part of the wiring terminal (9), connecting rod (10) are located the inside of spread groove (8), wiring end (9) run through in the inside of second insulating cover (6), wiring mouth (11) have been seted up to the tip of wiring end (9).

2. The varistor of claim 1, wherein: the number of the electrodes (2) is two, and the electrodes (2) are symmetrically arranged around the central axis of the resistor core (1).

3. The varistor of claim 1, wherein: the clamping block (4) is designed to be of a trapezoidal structure, and the clamping block (4) is connected with the clamping groove (3) in a clamping mode.

4. The varistor of claim 1, wherein: the second insulating sleeve (6) is connected with the first insulating sleeve (5) in a sticking mode, and the inner side of the second insulating sleeve (6) is connected with the outer side of the wiring terminal (9) in a sticking mode.

5. The varistor of claim 1, wherein: the wiring end (9) is designed to be of an L-shaped structure, and the wiring end (9) and the groove (7) are connected through clamping type soldering tin.

6. The varistor of claim 1, wherein: the connecting rods (10) are distributed at the end parts of the wiring ends (9) at equal intervals, and the connecting rods (10) are connected with the connecting grooves (8) in a clamping mode.

7. The varistor of claim 1, wherein: the wiring port (11) is provided with two, and the inner side of the wiring port (11) is designed to be of an arc-shaped structure.