CN213691624U - Plane installation type thick film power resistor - Google Patents
Plane installation type thick film power resistor Download PDFInfo
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- CN213691624U CN213691624U CN202021936604.4U CN202021936604U CN213691624U CN 213691624 U CN213691624 U CN 213691624U CN 202021936604 U CN202021936604 U CN 202021936604U CN 213691624 U CN213691624 U CN 213691624U
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- resistor
- rectangular shell
- ceramic substrate
- printed
- film power
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Abstract
The utility model discloses a plane installation type thick film power resistor, which comprises a rectangular shell, wherein a ceramic substrate is arranged at the inner bottom of the rectangular shell, a resistor layer is printed on the top surface of the ceramic substrate, electrode layers are printed at two ends of the resistor layer, epoxy resin is encapsulated in the rectangular shell, a wiring strip for leading out the epoxy resin is welded on the electrode layers, and the wiring strip is provided with a thread installation hole; four corners of the rectangular shell are respectively provided with a sinking groove; by adopting a thick-film power resistor technology, the resistor body is directly printed on the surface of the ceramic substrate, so that heat generated by the resistor during working can be conducted out in time, the resistor can obtain larger continuous power, and a radiator is not required to be additionally arranged; because the four corners of the rectangular shell are provided with the sinking grooves, the stress can be reduced and the deformation of the rectangular shell can be prevented when the rectangular shell is prepared and installed.
Description
Technical Field
The utility model relates to an electrical element technical field specifically is a plane installation type thick film power resistor.
Background
Along with the rapid development of the electronic industry and the popularization of the miniaturization of electronic components, the demand on the miniaturized power type electronic components is more and more, the resistor is also the same, the existing power resistor mainly takes wire winding, a resistance wire is wound on the surfaces of a ceramic matrix and the ceramic matrix, electrode leads are led out from two ends of the ceramic matrix, and then injection molding and packaging are carried out, the resistor with the leads is large in size, low in precision and not suitable for the installation requirements of middle-end and high-end electronic equipment.
The existing thick film resistor is integrally formed, and is easy to deform during preparation, so that the yield of products is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plane installation type thick film power resistor, this resistor have small, the heat dispersion is good, the advantage that the resistance precision is high, the surface mounting of being convenient for, and non-deformable.
The utility model provides a technical scheme that its technical problem adopted is:
a plane mounting type thick film power resistor comprises a rectangular shell, wherein a ceramic substrate is arranged at the inner bottom of the rectangular shell, a resistor layer is printed on the top surface of the ceramic substrate, electrode layers are printed at two ends of the resistor layer, epoxy resin is encapsulated in the rectangular shell, a wiring strip for leading out the epoxy resin is welded on the electrode layers, and a thread mounting hole is formed in the wiring strip; four corners of the rectangular shell are respectively provided with a sinking groove.
The utility model has the advantages that the thick film power resistance technology is adopted, the resistor body is directly printed on the surface of the ceramic substrate, the heat generated by the resistor during working can be conducted out in time, the resistor can obtain larger continuous power, and a radiator is not needed to be additionally configured; because the four corners of the rectangular shell are provided with the sinking grooves, the stress can be reduced and the deformation of the rectangular shell can be prevented when the rectangular shell is prepared and installed.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic diagram of the internal structure of the present invention.
Detailed Description
With reference to fig. 1 to 3, the utility model provides a planar mounting type thick film power resistor, including rectangular casing 1, the bottom is equipped with ceramic substrate 2 in rectangular casing 1, ceramic substrate 2 top surface printing has resistive layer 3, resistive layer 3 both ends printing has electrode layer 4, the embedment has epoxy 5 in the rectangular casing, electrode layer 4 welding has lead-out epoxy's wiring strip 6, wiring strip 6 is the L shape, the wiring strip is equipped with screw thread mounting hole 7; four corners of the rectangular shell 1 are respectively provided with a sinking groove 8, and two sides of the rectangular shell 1 are respectively provided with a fixing hole 9.
By adopting a thick-film power resistor technology, the resistor body is directly printed on the surface of the ceramic substrate, so that heat generated by the resistor during working can be conducted out in time, the resistor can obtain larger continuous power, and a radiator is not required to be additionally arranged; compared with the traditional power wire-wound resistor, the resistor has the advantages of small volume, good heat dissipation performance and high resistance precision, and can reach +/-1.0%; the temperature coefficient is small, and can be made to be +/-25 multiplied by 10-6K; the operation is stable and reliable, and the stability can be +/-1.0% (under the environment conditions that the temperature is 70 ℃ and the operation is 1000 hours); through the fixing hole 9, the plane installation is convenient. Because the four corners of rectangular housing have set up heavy groove 8, when the preparation installation, can reduce stress, prevent rectangular housing's deformation.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (1)
1. A plane mounting type thick film power resistor is characterized by comprising a rectangular shell, wherein a ceramic substrate is arranged at the inner bottom of the rectangular shell, a resistor layer is printed on the top surface of the ceramic substrate, electrode layers are printed at two ends of the resistor layer, epoxy resin is encapsulated in the rectangular shell, a wiring strip for leading out the epoxy resin is welded on the electrode layers, and a thread mounting hole is formed in the wiring strip; four corners of the rectangular shell are respectively provided with a sinking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936604.4U CN213691624U (en) | 2020-09-08 | 2020-09-08 | Plane installation type thick film power resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936604.4U CN213691624U (en) | 2020-09-08 | 2020-09-08 | Plane installation type thick film power resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213691624U true CN213691624U (en) | 2021-07-13 |
Family
ID=76746471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021936604.4U Active CN213691624U (en) | 2020-09-08 | 2020-09-08 | Plane installation type thick film power resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213691624U (en) |
-
2020
- 2020-09-08 CN CN202021936604.4U patent/CN213691624U/en active Active
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