CN205451956U - Novel high temperature resistant film resistor - Google Patents
Novel high temperature resistant film resistor Download PDFInfo
- Publication number
- CN205451956U CN205451956U CN201620162034.5U CN201620162034U CN205451956U CN 205451956 U CN205451956 U CN 205451956U CN 201620162034 U CN201620162034 U CN 201620162034U CN 205451956 U CN205451956 U CN 205451956U
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- film resistor
- electrode
- conducting plate
- heat
- thin layer
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Abstract
The utility model relates to an electronic components field, concretely relates to novel high temperature resistant film resistor, it includes the metal heat -conducting plate, metal heat -conducting plate upper end is provided with film resistor insulation substrate, the film resistor insulation substrate upper end is provided with trapezoidal recess, be provided with the resistance thin layer in the trapezoidal recess, resistance thin layer upper end is the plane, resistance thin layer both ends are connected with the electrode, the electrode is connected with introduces the electrode from other localities, through the fine heat conduction of metal heat -conducting plate, the heat that makes electronic equipment produce is conducted a film resistor, the resistance thin layer insulation that makes through film resistor insulation substrate can be fine is opened, what the resistance thin layer was fine installs in trapezoidal recess, film resistor's stability has been increased, the electrode can be fine make among the film resistor access circuit, can increase film resistor's connection distance through introducing the electrode from other localities, whole film resistor compact structure, design principle is simple, have fine heat conduction and heat -proof quality, and is worthy of popularization.
Description
Technical field
This utility model relates to electronic devices and components field, is specifically related to a kind of novel fire resistant film resistor.
Background technology
nullCertain resistivity materials is deposited with by the method for thin film resistor class evaporation to be made in insulant surface，The insulant that this quasi-resistance general is conventional is ceramic substrate，The difference of thickness，The thickness of thick-film resistor is generally higher than 10 μm，The thickness of thin film is less than 10 μm，Mostly it is in less than 1 μm，The difference of manufacturing process，Thick-film resistor typically uses silk-screen printing technique，Film resistor uses vacuum evaporation、The processes such as magnetron sputtering，Thick-film resistor and film resistor directly results in two kinds of resistance difference in performance at material and technologic difference，Thick-film resistor general precision is poor，10%，5%，1% is common precision，Film resistor then can accomplish 0.01% ten thousand/precision，0.1% thousand-island forest park etc.，It is difficult on the temperature coefficient of thick-film resistor control simultaneously，Generally large，Same，Film resistor then can accomplish low-down temperature coefficient，So resistance varies with temperature the least，Resistance is reliable and stable，So film resistor is usually used in all kinds of instrument and meter，Medical apparatus and instruments，Power supply，Power equipment，Electronic digital product etc.，But a lot of electronic equipments are using film resistor when，Will suffer a problem that，That is exactly that film resistor often makes resistance change because of the higher temperature of electronic equipment，Thus cause electronic equipment cisco unity malfunction，Sometimes result even in electronic equipment to be damaged，It is thus desirable to a kind of novel fire resistant film resistor of design.
Utility model content
For problem above, this utility model provides a kind of novel fire resistant film resistor, has good resistance to elevated temperatures so that film resistor can still keep more stable resistance in the case of higher temperature, thus protects electronic equipment.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of novel fire resistant film resistor, it includes metal heat-conducting plate, described metal heat-conducting plate upper end is provided with film resistor insulated substrate, described film resistor insulated substrate upper end is provided with trapezoidal groove, is provided with resistive film layer in described trapezoidal groove, and described resistive film layer upper end is plane, described resistive film layer two ends connect electrode, and described electrode connects outer electrode.
Further, described film resistor insulated substrate two ends are provided with auxiliary plating block, and described auxiliary plating block includes conductive layer and electrodeposited coating.
Further, described resistive film layer upper end is provided with insulating protective layer, and described insulating protective layer upper end is provided with waterproof layer.
Further, it is provided with louvre in described film resistor insulated substrate.
Further, described metal heat-conducting plate two ends connect bonding block.
The beneficial effects of the utility model:
This utility model passes through the good heat conduction of metal heat-conducting plate, the heat that electronic equipment is produced is transferred out film resistor, resistive film layer insulation can be well made to open by film resistor insulated substrate, resistive film layer is well arranged in trapezoidal groove, add the stability of film resistor, electrode can well make film resistor access in circuit, the connection distance of film resistor can be increased by outer electrode, whole film resistance structure is compact, design principle is simple, there is good heat conduction and heat-proof quality, to greatest extent the heat produced in electronic equipment can be separated with resistance, while ensure that the stability of resistance, well protect circuit, electronic equipment is made to have longer service life, there is good Practical significance and the highest cost performance, it is worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram；
Fig. 2 is this utility model auxiliary plating block structure schematic diagram.
Figure is numbered: 1-metal heat-conducting plate, 2-film resistor insulated substrate, 3-trapezoidal groove, 4-resistive film layer, 5-electrode; 6-outer electrode, 7-auxiliary plating block, 8-conductive layer, 9-electrodeposited coating; 10-insulating protective layer, 11-waterproof layer, 12-louvre, 13-adhesive layer.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As depicted in figs. 1 and 2, a kind of novel fire resistant film resistor, it includes metal heat-conducting plate 1, described metal heat-conducting plate 1 upper end is provided with film resistor insulated substrate 2, described film resistor insulated substrate 2 upper end is provided with trapezoidal groove 3, is provided with resistive film layer 4 in described trapezoidal groove 3, and described resistive film layer 4 upper end is plane, described resistive film layer 4 two ends connect electrode 5, and described electrode 5 connects outer electrode 6.
, described film resistor insulated substrate 2 two ends are provided with auxiliary plating block 7 on above-described embodiment preferably, and described auxiliary plating block 7 includes conductive layer 8 and electrodeposited coating 9, can well protect film resistor so that more stable during film resistor work.
, described resistive film layer 4 upper end is provided with insulating protective layer 10, and described insulating protective layer 10 upper end is provided with waterproof layer 11 on above-described embodiment preferably, can well make film resistor and external insulation, and avoid resistance because intaking the damage caused.
On above-described embodiment preferably, it is provided with louvre 12 in described film resistor insulated substrate 2, the heat dispersion of film resistor can be improved so that resistance is more stable.
On above-described embodiment preferably, described metal heat-conducting plate 1 two ends connect bonding block 13, and film resistor can be facilitated to install.
Based on above-mentioned, this utility model passes through the good heat conduction of metal heat-conducting plate, the heat that electronic equipment is produced is transferred out film resistor, resistive film layer insulation can be well made to open by film resistor insulated substrate, resistive film layer is well arranged in trapezoidal groove, add the stability of film resistor, electrode can well make film resistor access in circuit, the connection distance of film resistor can be increased by outer electrode, whole film resistance structure is compact, design principle is simple, there is good heat conduction and heat-proof quality, to greatest extent the heat produced in electronic equipment can be separated with resistance, while ensure that the stability of resistance, well protect circuit, electronic equipment is made to have longer service life, there is good Practical significance and the highest cost performance, it is worthy to be popularized.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (5)
1. a novel fire resistant film resistor, it is characterized in that: it includes metal heat-conducting plate, described metal heat-conducting plate upper end is provided with film resistor insulated substrate, described film resistor insulated substrate upper end is provided with trapezoidal groove, it is provided with resistive film layer in described trapezoidal groove, described resistive film layer upper end is plane, and described resistive film layer two ends connect electrode, and described electrode connects outer electrode.
A kind of novel fire resistant film resistor the most according to claim 1, it is characterised in that: described film resistor insulated substrate two ends are provided with auxiliary plating block, and described auxiliary plating block includes conductive layer and electrodeposited coating.
A kind of novel fire resistant film resistor the most according to claim 1, it is characterised in that: described resistive film layer upper end is provided with insulating protective layer, and described insulating protective layer upper end is provided with waterproof layer.
A kind of novel fire resistant film resistor the most according to claim 1, it is characterised in that: it is provided with louvre in described film resistor insulated substrate.
A kind of novel fire resistant film resistor the most according to claim 1, it is characterised in that: described metal heat-conducting plate two ends connect bonding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162034.5U CN205451956U (en) | 2016-03-03 | 2016-03-03 | Novel high temperature resistant film resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620162034.5U CN205451956U (en) | 2016-03-03 | 2016-03-03 | Novel high temperature resistant film resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205451956U true CN205451956U (en) | 2016-08-10 |
Family
ID=56604854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620162034.5U Expired - Fee Related CN205451956U (en) | 2016-03-03 | 2016-03-03 | Novel high temperature resistant film resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205451956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI733120B (en) * | 2019-05-29 | 2021-07-11 | 國立中山大學 | Thin film resistor |
-
2016
- 2016-03-03 CN CN201620162034.5U patent/CN205451956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI733120B (en) * | 2019-05-29 | 2021-07-11 | 國立中山大學 | Thin film resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170303 |