CN104252934A

CN104252934A - Glass glaze resistance voltage divider with voltage division ratio of 1:1000-10000

Info

Publication number: CN104252934A
Application number: CN201310273596.8A
Authority: CN
Inventors: 李志珣
Original assignee: TIANJIN SANHUAN RESISTOR CO Ltd
Current assignee: TIANJIN SANHUAN RESISTOR CO Ltd
Priority date: 2013-06-30
Filing date: 2013-06-30
Publication date: 2014-12-31

Abstract

The invention relates to a glass glaze resistance voltage divider with a voltage division ratio of 1:1000-10000. The glass glaze resistance voltage divider comprises a ceramic matrix, a resistance layer, caps and leading-out wires, the outer rim of the ceramic matrix is coaxially covered with the resistance layer, the caps are crimped to two side ends of the resistance layer in a mirror symmetry manner, the centers of the two caps are coaxially fixedly provided with the leading-out wires as a first leading-out end and a second leading-out end respectively, the outer rim of the resistance layer is coaxially fixedly provided with a protection layer, the left cap is radically fixedly provided with a voltage division leading-out wire as a third leading-out end, and the voltage division leading-out wire vertically penetrates through the protection layer. A present glass glaze fixed resistor is reconstructed through accurate measurement and calculation, the leading-out wire is arranged in the assigned area of the cap as the third leading-out end without changing a resistance membrane used by the conductive layer to make the glass glaze fixed resistor become the resistance voltage divider, and the glass glaze fixed resistor has the characteristics of good moisture resistance and high temperature resistance, so the wide application range of the resistance voltage divider is guaranteed.

Description

A kind of voltage ratio is the glaze resistance voltage divider of 1:1000 ~ 10000

Technical field

The invention belongs to field of electronic devices, relate to resitstance voltage divider, especially a kind of voltage ratio is the glaze resistance voltage divider of 1:1000 ~ 10000.

Background technology

Resistance divider has three exits, resistance fixed resistive element, in order to reduce production cost or use cost, slide rheostat often uses as voltage divider by manufacturer or user, this gives no cause for much criticism in typical electronic circuitry, and partial pressure value is adjustable, if but be applied in space flight, in the sophisticated electronic circuitry such as navigation, not only volume cannot meet circuit requirement, its precision is far from up to standard, mainly its rated disspation is different from limiting voltage specification, voltage ratio power is little, weatherability is poor, so under the market background of current more and more attention precise electronic original paper, high accuracy, the resistance divider of high partial pressures specific power is absolutely necessary.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art part, provide that a kind of to have voltage ratio that is well moisture resistance, thermal endurance be the glaze resistance voltage divider of 1:1000 ~ 10000.

The object of the invention is to be achieved through the following technical solutions:

A kind of voltage ratio is the glaze resistance voltage divider of 1:1000 ~ 10000, comprise ceramic matrix, resistive layer, cap and lead-out wire, coaxially resistive layer is covered in ceramic matrix outer rim, at this resistive layer two side ends specular crimping cap, coaxially lead-out wire is fixedly mounted with in the middle part of two caps, respectively as first, second exit, coaxially protective layer is fixed with in resistive layer outer rim, on the cap of left side, radial direction is fixedly mounted with a dividing potential drop lead-out wire, as three terminal, this dividing potential drop lead-out wire vertically runs through protective layer, dividing potential drop lead-out wire passes position and is positioned at protective layer total length 1/8 place from left to right, the diameter of the lead-out wire of the first exit is 1mm, the diameter of dividing potential drop lead-out wire is 0.6mm, resistive layer length is 150mm.

And specular is fixedly mounted with capping at described protective layer two ends.

And the Standard resistance range between described first exit and the second exit is 1 ~ 499M Ω, the Standard resistance range between the first exit and three terminal is 499 Ω ~ 1M Ω.

And described resistive layer is resistive film, adopt ruthenium-oxide glass glaze.

Advantage of the present invention and beneficial effect are:

The present invention is by accurate surveying and calculating, existing glass glaze fixed resistance is transformed, on the basis not changing conductive layer resistive film used, lead-out wire has been installed additional as three terminal in cap appointed area, glass glaze fixed resistance is made to become resistance divider, its voltage ratio reaches 1:500 ~ 5000, due to glass glaze fixed resistance self-characteristic, its preferably moisture resistance, heat-resisting quantity ensure that the resitstance voltage divider scope of application widely.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention (broken section);

Fig. 2 is the left view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.

A kind of voltage ratio is the glaze resistance voltage divider of 1:1000 ~ 10000; comprise ceramic matrix 2, resistive layer 3, cap 5 and lead-out wire 7; coaxially resistive layer is covered in ceramic matrix outer rim; at this resistive layer two side ends specular crimping cap; coaxially lead-out wire is fixedly mounted with in the middle part of two caps; respectively as first, second exit; in the present embodiment; in figure, left side lead-out wire is the first exit; protective layer 4 is coaxially fixed with in resistive layer outer rim; be fixedly mounted with capping 6 at this protective layer two ends specular, resistive layer is sealed.

Innovative point of the present invention is:

On the cap of left side, radial direction is fixedly mounted with a dividing potential drop lead-out wire 1; as three terminal; this dividing potential drop lead-out wire vertically runs through protective layer; dividing potential drop lead-out wire passes position and is positioned at protective layer total length 1/8 place from left to right; the diameter of the lead-out wire of the first exit is 1mm, and the diameter of dividing potential drop lead-out wire is 0.6mm, and resistive layer length is 150mm; Standard resistance range between first exit and the second exit is 1 ~ 499M Ω, and the Standard resistance range between the first exit and three terminal is 499 Ω ~ 1M Ω.

The resistive layer that the present invention adopts is resistive film, adopts ruthenium-oxide glass glaze.

After testing, the voltage ratio of the resitstance voltage divider of this resitstance voltage divider is 1:1000 ~ 10000, and at 25 DEG C, the rated disspation between the first exit and the second exit is 7.5W, and a few line voltage is 50KV.

Claims

1. a voltage ratio is the glaze resistance voltage divider of 1:1000 ~ 10000, comprise ceramic matrix, resistive layer, cap and lead-out wire, coaxially resistive layer is covered in ceramic matrix outer rim, at this resistive layer two side ends specular crimping cap, coaxially lead-out wire is fixedly mounted with in the middle part of two caps, respectively as first, second exit, coaxially protective layer is fixed with in resistive layer outer rim, it is characterized in that: on the cap of left side, radial direction is fixedly mounted with a dividing potential drop lead-out wire, as three terminal, this dividing potential drop lead-out wire vertically runs through protective layer, dividing potential drop lead-out wire passes position and is positioned at protective layer total length 1/8 place from left to right, the diameter of the lead-out wire of the first exit is 1mm, the diameter of dividing potential drop lead-out wire is 0.6mm, resistive layer length is 150mm.

2. voltage ratio according to claim 1 is the glaze resistance voltage divider of 1:1000 ~ 10000, it is characterized in that: at described protective layer two ends, specular is fixedly mounted with capping.

3. voltage ratio according to claim 1 is the glaze resistance voltage divider of 1:1000 ~ 10000, it is characterized in that: the Standard resistance range between described first exit and the second exit is 1 ~ 499M Ω, the Standard resistance range between the first exit and three terminal is 499 Ω ~ 1M Ω.

4. voltage ratio according to claim 1 is the glaze resistance voltage divider of 1:1000 ~ 10000, it is characterized in that: described resistive layer is resistive film, adopts ruthenium-oxide glass glaze.