CN209433969U - A kind of high-power four-head safe Resistance - Google Patents
A kind of high-power four-head safe Resistance Download PDFInfo
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- CN209433969U CN209433969U CN201821539431.5U CN201821539431U CN209433969U CN 209433969 U CN209433969 U CN 209433969U CN 201821539431 U CN201821539431 U CN 201821539431U CN 209433969 U CN209433969 U CN 209433969U
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- resistance
- power
- resistive layer
- terminal
- silver electrode
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Abstract
The utility model relates to a kind of high-power four-head safe Resistances, using ceramic chip as underlying carrier, there are four electric leading-out terminals for setting simultaneously, conductor is provided between any two of them electric leading-out terminal, four terminals of extraction are connect using silver electrode with resistive layer, conductive material of the silver electrode as resistor lead-out ends, tile is as auxiliary radiating device, it is set as the carrier of resistive layer, which is additionally provided with tile outer cover, and the ceramic chip carrier for being loaded with resistance is fitted into tile outer cover；Advantage is power up to 20W, can make accurate judgment for late-class circuit and provide reliable basis, reach security purpose.
Description
Technical field
The utility model relates to for the resistance in the circuit high to security requirement, specifically a kind of high-power four-head
Safe Resistance.
Background technique
Currently, in railway signal system key signal transmission channel, in order to improve the safety of system, to key signal
In Acquisition Circuit, four-head resistance has been used, to signal decompression, partial pressure, has carried out impedance matching with late-class circuit.Used at present four
Head safe Resistance power is smaller, and without auxiliary radiating device, general 1W or so is not able to satisfy certain circuits and pacifies to high-power four-head
The demand of impedance.
Summary of the invention
The purpose of the utility model is to provide a kind of high-power four-head safe Resistances, and power is up to 20W, to meet certain electricity
The demand on road.
The purpose of this utility model is achieved through the following technical solutions: a kind of high-power four-head safe Resistance, including
Resistive layer is characterized in that: the resistance is arranged using ceramic chip as underlying carrier there are four electric leading-out terminal,
Conductor is provided between middle any two electric leading-out terminal, four terminals of extraction are connect using silver electrode with resistive layer,
Conductive material of the silver electrode as resistor lead-out ends, tile are set as the carrier of resistive layer as auxiliary radiating device, should
Resistance is additionally provided with tile outer cover, and the ceramic chip carrier for being loaded with resistance is fitted into tile outer cover.
The advantages of the utility model and beneficial effect are: when resistance overload, two of them electric leading-out terminal and resistance
The silver electrode of film layer connection will fuse, thus shutoff signal input channel, make accurate judgment for late-class circuit provide reliably according to
According to reaching security purpose.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the inside schematic diagram of the utility model；
Appended drawing reference is as follows: 1, ceramic chip 2, electric leading-out terminal 3, pad.
Specific embodiment
As shown in Figs. 1-2, the utility model relates to a kind of high-power four-head safe Resistances, including resistive layer, in which: should
Resistance is underlying carrier with ceramic chip 1, while there are four electric leading-out terminal 2, any two of them electric leading-out terminals for setting
Between be provided with conductor, four terminals of extraction are connect using silver electrode with resistive layer, and silver electrode is sub as resistor lead-out ends
Conductive material, tile is set as the carrier of resistive layer as auxiliary radiating device, which is additionally provided with tile outer cover,
The ceramic chip carrier for being loaded with resistance is fitted into tile outer cover.
Using ceramic chip as underlying carrier, four terminals of extraction are connect using silver electrode with resistive layer, terminal " 1 " and
Between " 2 ", terminal " 3 ", between " 4 " be the conductor with certain resistance value (non-resistive resistance value), wherein between terminal " 1 " and " 2 "
For the minimum silver electrode of resistance；The lesser silver electrode of resistance between terminal " 3 ", " 4 ", resistance value than terminal " 1 " and " 2 " it
Between resistance value it is slightly larger.When resistance overload, the silver electrode that terminal " 3 ", " 4 " or terminal " 1 ", " 2 " are connect with resistive layer will melt
It is disconnected, so that shutoff signal input channel, makes accurate judgment for late-class circuit and provides reliable basis, reach security purpose.
Between terminal " 1 " and terminal " 3 " or " 4 ", between terminal " 2 " and terminal " 3 " or " 4 "；Or terminal " 3 " and terminal
Resistance value between " 1 " or " 2 ", between terminal " 4 " and terminal " 1 " or " 2 " is the resistance value of demand.To promote resistor power,
Devise thermally conductive, high temperature resistant and the good tile outer cover of insulation performance；The porcelain of leading-out terminal, silver electrode, resistive layer will be loaded with
Substrate is fitted into the tile outer cover, and encapsulates, and reaches powerful purpose.
Claims (1)
1. a kind of high-power four-head safe Resistance, including resistive layer, it is characterised in that: the resistance is basic carry with ceramic chip
Body, while being arranged there are four electric leading-out terminal, is provided with conductor between any two of them electric leading-out terminal, and the four of extraction
A terminal is connect using silver electrode with resistive layer, conductive material of the silver electrode as resistor lead-out ends, and tile is as auxiliary
Radiator is set as the carrier of resistive layer, which is additionally provided with tile outer cover, and the ceramic chip carrier for being loaded with resistance is packed into
In tile outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821539431.5U CN209433969U (en) | 2018-09-20 | 2018-09-20 | A kind of high-power four-head safe Resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821539431.5U CN209433969U (en) | 2018-09-20 | 2018-09-20 | A kind of high-power four-head safe Resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209433969U true CN209433969U (en) | 2019-09-24 |
Family
ID=68006872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821539431.5U Active CN209433969U (en) | 2018-09-20 | 2018-09-20 | A kind of high-power four-head safe Resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209433969U (en) |
-
2018
- 2018-09-20 CN CN201821539431.5U patent/CN209433969U/en active Active
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