CN203385778U

CN203385778U - Glass glaze resistance voltage divider with voltage dividing ratio of 1:500-5000

Info

Publication number: CN203385778U
Application number: CN201320388816.7U
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 dividing ratio of 1:500-5000. The glass glaze resistance voltage divider comprises a ceramic base body, a resistance layer, cap covers and lead-out wires. The external edge of the ceramic base body is covered with the resistance layer in a coaxial way. The two side ends of the resistance layer are connected with the cap covers, which are mirror image symmetrical with each other, in a pressing way. The middle parts of the two cap covers are fixedly provided with the lead-out wires in the coaxial way, and the lead-out wires act as a first lead-out end and a second lead-out end respectively. The external edge of the resistance layer is fixedly provided with a protection layer in the coaxial way. The cap cover of the left side is fixedly provided with a voltage-dividing lead-out wire in radial direction, and the voltage-dividing lead-out wire acts as a third lead-out end and vertically penetrates through the protection layer. With accurate measurement and calculation, an existing glass glaze fixed resistance is improved. The lead-out wire acting as the third lead-out end is additionally arranged in a designated area of the cap covers on a basis that a resistive film used by a conductive layer is not changed so that glass glaze fixed resistance is changed into a resistance type voltage divider. The glass glaze fixed resistance has characteristics of being great in moisture resistant and high temperature resistant performance so that a wide range of application of the resistance voltage divider is ensured.

Description

The glass glaze resitstance voltage divider that intrinsic standoff ratio is 1:500 ~ 5000

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 intrinsic standoff ratio is 1:500 ~ 5000.

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, intrinsic standoff ratio power is little, weatherability is poor, so more and more paying attention under the market background of precise electronic original paper now, high precision, 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 intrinsic standoff ratio is 1:500 ~ 5000 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 intrinsic standoff ratio is 1:500 ~ 5000, comprise ceramic matrix, resistive layer, cap and extension line, 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 extension line at two cap middle parts, respectively as first, the second exit, coaxially be fixed with protective seam in the resistive layer outer rim, radially be fixedly mounted with a dividing potential drop extension line on the cap of left side, as three terminal, this dividing potential drop extension line vertically runs through protective seam, the dividing potential drop extension line passes position and is positioned at protective seam total length 1/10 place from left to right, the diameter of the extension line of the first exit is 1mm, the diameter of dividing potential drop extension line is 0.6mm, resistive layer length is 100mm.

And the mirror image symmetry is fixedly mounted with capping at described protective seam 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 extension line additional as three terminal in the cap appointed area, make the glass glaze fixed resistance become resistance divider, its intrinsic standoff 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 domain of the present utility model with this.

The glass glaze resitstance voltage divider that a kind of intrinsic standoff ratio is 1:500 ~ 5000; comprise ceramic matrix 2, resistive layer 3, cap 5 and extension line 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 extension line at two cap middle parts; respectively as first, second exit; in the present embodiment; in figure, the left side extension line is the first exit; coaxially be fixed with protective seam 4 in the resistive layer outer rim; be fixedly mounted with capping 6 in this protective seam 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 extension line 1 on the cap of left side; as three terminal; this dividing potential drop extension line vertically runs through protective seam; the dividing potential drop extension line passes position and is positioned at protective seam total length 1/10 place from left to right; the diameter of the extension line of the first exit is 1mm, and the diameter of dividing potential drop extension line is 0.6mm, and resistive layer length is 100mm; 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 intrinsic standoff ratio of the resitstance voltage divider of this resitstance voltage divider is that under 1:500 ~ 5000,25 ℃, the rated disspation between the first exit and the second exit is 5W, and a few line voltage is 40KV.

Claims

1. the glass glaze resitstance voltage divider that intrinsic standoff ratio is 1:500 ~ 5000, comprise ceramic matrix, resistive layer, cap and extension line, 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 extension line at two cap middle parts, respectively as first, the second exit, coaxially be fixed with protective seam in the resistive layer outer rim, it is characterized in that: radially be fixedly mounted with a dividing potential drop extension line on the cap of left side, as three terminal, this dividing potential drop extension line vertically runs through protective seam, the dividing potential drop extension line passes position and is positioned at protective seam total length 1/10 place from left to right, the diameter of the extension line of the first exit is 1mm, the diameter of dividing potential drop extension line is 0.6mm, resistive layer length is 100mm.

2. the glass glaze resitstance voltage divider that intrinsic standoff ratio according to claim 1 is 1:500 ~ 5000 is characterized in that: at described protective seam two ends, the mirror image symmetry is fixedly mounted with capping.

3. the glass glaze resitstance voltage divider that intrinsic standoff ratio according to claim 1 is 1:500 ~ 5000, 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 intrinsic standoff ratio according to claim 1 is 1:500 ~ 5000 is characterized in that: described resistive layer is resistive film, adopts the ruthenium-oxide glass glaze.