CN203386557U

CN203386557U - Glass glaze resistance voltage divider with voltage division ratio of 1:(1000-10000)

Info

Publication number: CN203386557U
Application number: CN201320388985.0U
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: 2014-01-08
Anticipated expiration: 2023-06-30

Abstract

The utility model 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 lead-out lines, wherein the resistance layer is coaxially covered at the outer edge of the ceramic matrix; the caps are in compression connection with the two side ends of the resistance layer in a mirror symmetry manner; the lead-out lines are mounted in the middles of the two caps coaxially and fixedly and serve as a first lead-out end and a second lead-out end respectively; a protective layer is mounted at the outer edge of the resistance layer coaxially and fixedly; a voltage-dividing lead-out line is mounted on the cap on the left side radially and fixedly and serves as a third lead-out end; the voltage-dividing lead-out line vertically runs through the protective layer. The existing glass glaze fixed resistor is transformed through accurate measurement and calculation, and the lead-out line is mounted in the appointed region of the cap to serve as the third lead-out end on the basis of not changing a resistive film which is used by a conducting layer, so that the glass glaze fixed resistor is changed into a resistance type voltage divider; the glass glaze fixed resistor has excellent moisture resistance and high temperature resistance, so wide application range of the resistance voltage divider is guaranteed.

Description

The glass glaze resitstance voltage divider that voltage ratio is 1:1000 ~ 10000

Technical field

The utility model belongs to field of electronic devices, relates to resitstance voltage divider, the glass glaze resitstance voltage divider that especially a kind of voltage ratio is 1:1000 ~ 10000.

Background technology

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

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of glass glaze resitstance voltage divider that well moisture resistance, stable on heating voltage ratio is 1:1000 ~ 10000 that has is provided.

The purpose of this utility model is achieved through the following technical solutions:

The glass glaze resitstance voltage divider that a kind of voltage ratio is 1:1000 ~ 10000, comprise ceramic matrix, resistive layer, cap and lead-out wire, coaxially cover resistive layer in the ceramic matrix outer rim, at the symmetrical crimping cap of this resistive layer two side ends mirror image, coaxially be fixedly mounted with lead-out wire at two cap middle parts, respectively as first, the second exit, coaxially be fixed with protective layer in the resistive layer outer rim, radially be fixedly mounted with a dividing potential drop lead-out wire on the cap of left side, as three terminal, this dividing potential drop lead-out wire vertically runs through protective layer, the 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 the mirror image symmetry is fixedly mounted with capping at described protective layer two ends.

And the Standard resistance range between described the 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 the ruthenium-oxide glass glaze.

Advantage of the present utility model and beneficial effect are:

The utility model is by accurately measuring and calculating, existing glass glaze fixed resistance is transformed, on the basis that does not change conductive layer resistive film used, installed lead-out wire additional as three terminal in the cap appointed area, make the glass glaze fixed resistance become resistance divider, its voltage ratio has reached 1:500 ~ 5000, due to glass glaze fixed resistance self-characteristic, its preferably moisture resistance, heat-resisting quantity guaranteed the resitstance voltage divider scope of application widely.

The accompanying drawing explanation

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

The left view that Fig. 2 is Fig. 1.

Embodiment

Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection range of the present utility model with this.

The glass glaze resitstance voltage divider that a kind of voltage ratio is 1:1000 ~ 10000; comprise ceramic matrix 2, resistive layer 3, cap 5 and lead-out wire 7; coaxially cover resistive layer in the ceramic matrix outer rim; at the symmetrical crimping cap of this resistive layer two side ends mirror image; coaxially be fixedly mounted with lead-out wire at two cap middle parts; respectively as first, second exit; in the present embodiment; in figure, the left side lead-out wire is the first exit; coaxially be fixed with protective layer 4 in the resistive layer outer rim; be fixedly mounted with capping 6 in this protective layer two ends mirror image symmetry, resistive layer is sealed.

Innovative point of the present utility model is:

Radially be fixedly mounted with a dividing potential drop lead-out wire 1 on the cap of left side; as three terminal; this dividing potential drop lead-out wire vertically runs through protective layer; the 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 the 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 utility model adopts is resistive film, adopts the ruthenium-oxide glass glaze.

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

Claims

1. the glass glaze resitstance voltage divider that voltage ratio is 1:1000 ~ 10000, comprise ceramic matrix, resistive layer, cap and lead-out wire, coaxially cover resistive layer in the ceramic matrix outer rim, at the symmetrical crimping cap of this resistive layer two side ends mirror image, coaxially be fixedly mounted with lead-out wire at two cap middle parts, respectively as first, the second exit, coaxially be fixed with protective layer in the resistive layer outer rim, it is characterized in that: radially be fixedly mounted with a dividing potential drop lead-out wire on the cap of left side, as three terminal, this dividing potential drop lead-out wire vertically runs through protective layer, the 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 the 3rd lead-out wire is 0.6mm, resistive layer length is 150mm.

2. the glass glaze resitstance voltage divider that voltage ratio according to claim 1 is 1:1000 ~ 10000 is characterized in that: at described protective layer two ends, the mirror image symmetry is fixedly mounted with capping.

3. the glass glaze resitstance voltage divider that voltage ratio according to claim 1 is 1:1000 ~ 10000, it is characterized in that: the Standard resistance range between described the 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.

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