CN220509797U - Low sheet resistance chip resistor with anti-drop structure - Google Patents
Low sheet resistance chip resistor with anti-drop structure Download PDFInfo
- Publication number
- CN220509797U CN220509797U CN202322155683.5U CN202322155683U CN220509797U CN 220509797 U CN220509797 U CN 220509797U CN 202322155683 U CN202322155683 U CN 202322155683U CN 220509797 U CN220509797 U CN 220509797U
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- resistor body
- resistor
- frame
- heat conducting
- resistance chip
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- 229920001296 polysiloxane Polymers 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a low-square-resistance chip resistor with an anti-falling structure, in particular to the technical field of chip resistors, which comprises a resistor body, embedded grooves and conductive chips, wherein the embedded grooves are formed in two ends of the lower surface of the resistor body, the conductive chips are positioned in the embedded grooves, a fixed frame is movably arranged on the top surface of the resistor body, connecting rods are fixedly connected to corners of the lower surface of the fixed frame, a pressing frame is movably inserted at the bottom of the connecting rods, a plurality of groups of heat conducting fins are equidistantly arranged on the inner wall of the fixed frame, the lower surface of the fixed frame is provided with fixed grooves, the fixed frame is connected with the edge of the upper surface of the resistor body through the fixed grooves, and inserting holes are formed in the positions of the surfaces of the pressing frame, corresponding to the positions of the connecting rods, and the beneficial effects of the utility model are that: the resistor body can be fixed through the mutual cooperation of the pressing frame and the fixing frame, the stability of the installation of the resistor body can be improved, and the falling phenomenon of the resistor body is avoided.
Description
Technical Field
The utility model relates to a low-sheet resistance chip resistor, in particular to a low-sheet resistance chip resistor with an anti-falling structure, and belongs to the technical field of chip resistors.
Background
The chip resistor is one of metal glass glaze resistors, is a resistor manufactured by mixing metal powder and glass glaze powder and printing the mixture on a substrate by adopting a screen printing method, has the advantages of moisture resistance and high temperature resistance, small temperature coefficient, and can greatly save the space cost of a circuit and make the design finer.
Patent search finds that, publication number: CN113345661B discloses a chip resistor, which comprises a substrate, base plate top and bottom are equipped with the resistive layer, two the resistive layer another side is equipped with the resistive insulation layer, two the resistive insulation layer lateral wall is installed and is heatproof layer, the protective layer is installed to heatproof layer lateral wall, heatproof layer bottom both sides are fixed with the copper pipe that runs through the protective layer, the heating panel is installed at the copper pipe top, the resistive layer both sides are connected with inner electrode, two inner electrode lateral wall connection heatproof electrode. According to the utility model, the heat-resistant plates are arranged on two sides of the protection layer, the anti-compression plates are arranged on two side walls of the two heat-resistant plates, the protection plates are connected on two side walls of the two external electrodes, the limit posts are sleeved with the springs, the protection plates are provided with limit holes close to the limit posts, the damping blocks are arranged between the anti-compression plates and the protection plates, and the protection layers and the external electrodes are subjected to pressure protection through the anti-compression plates, the damping blocks, the limit posts and the springs, so that the damage to the inside of the chip resistor caused by vibration can be avoided.
Patent search finds that, publication number: CN113345661B, a chip resistor is disclosed to be connected by the contact of bottom and circuit board surface when the installation, and connection area is less, when receiving external force, the resistance chip takes place the desoldering phenomenon easily with circuit board junction, leads to the drop of resistance chip, for solving above-mentioned problem, this application provides a low square resistance chip resistor with anti-drop structure.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a low-square-resistance chip resistor with an anti-falling structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the low-square-resistance chip resistor with the anti-falling structure comprises a resistor body, embedded grooves and conductive chips, wherein the embedded grooves are formed in two ends of the lower surface of the resistor body, and the conductive chips are located in the embedded grooves;
the top surface of the resistor body is movably provided with a fixed frame, a connecting rod is fixedly connected to the corner of the lower surface of the fixed frame, and a pressing frame is movably inserted at the bottom of the connecting rod;
the inner wall of the fixed frame is equidistantly provided with a plurality of groups of heat conducting fins.
Preferably, the fixed slot is formed in the lower surface of the fixed frame, and the fixed frame is connected with the edge of the upper surface of the resistor body through the fixed slot.
Preferably, the position of the pressing frame surface corresponding to the position of the connecting rod is provided with a through hole in a penetrating way, and the bottom of the connecting rod is movably inserted with a pressing cap.
Preferably, both ends of the heat conducting fin are welded with the inner wall of the fixed frame.
Preferably, the upper surfaces of the heat conducting fins are provided with heat radiating fins.
Preferably, the lower surface of the heat conducting fin is coated with heat conducting silicone grease, and the lower surface of the heat conducting fin is attached to the upper surface of the resistor body through the heat conducting silicone grease.
The low-square-resistance chip resistor with the anti-falling structure has the beneficial effects that:
1. according to the utility model, the bottom of the connecting rod is spliced with the splicing holes on the surface of the pressing frame, the pressing cap is spliced with the bottom of the connecting rod, the inner wall of the pressing cap is fixed at the bottom of the connecting rod through friction, the resistor body can be fixed through the mutual matching of the pressing frame and the fixing frame, the mounting stability of the resistor body can be improved, and the falling-off phenomenon of the resistor body is avoided.
2. According to the resistor, the bottom surface of the heat conducting fin is attached to the surface of the resistor body through the heat conducting silicone grease, the heat conducting silicone grease has good heat conductivity, heat generated by the resistor body during operation is transferred to the heat conducting fin through the heat conducting silicone grease, heat dissipation of the heat conducting fin can be accelerated through the heat dissipating fin, and the heat dissipation effect of the resistor body during use can be improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a low sheet resistance chip resistor with an anti-drop structure according to the present utility model;
fig. 2 is a schematic diagram of a resistor body structure of a low-square-resistance chip resistor with an anti-drop structure according to the present utility model;
fig. 3 is a schematic diagram of a fixing frame structure of a low-sheet resistance chip resistor with an anti-drop structure according to the present utility model;
fig. 4 is a schematic structural diagram of a heat conducting strip with a low sheet resistance chip resistor having an anti-drop structure according to the present utility model.
In the figure: 1. a resistor body; 2. a groove is embedded; 3. a conductive patch; 4. a fixed frame; 5. a fixing groove; 6. a connecting rod; 7. pressing a frame; 8. a plug hole; 9. pressing the cap; 10. a heat conductive sheet; 11. a heat radiation fin; 12. and (5) heat-conducting silicone grease.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a low sheet resistance chip resistor with an anti-falling structure comprises a resistor body 1, embedded grooves 2 and conductive chips 3, wherein the embedded grooves 2 are formed in two ends of the lower surface of the resistor body 1, and the conductive chips 3 are positioned in the embedded grooves 2;
the top surface of the resistor body 1 is movably provided with a fixed frame 4, a connecting rod 6 is fixedly connected to the corner of the lower surface of the fixed frame 4, and a pressing frame 7 is movably inserted at the bottom of the connecting rod 6;
the inner wall of the fixed frame 4 is equidistantly provided with a plurality of groups of heat conducting fins 10.
It should be noted that, the electric connection department that resistance body 1 bottom surface was passed through conductive patch 3 and circuit board surface is connected, presses frame 7 to be located circuit board bottom surface to peg graft connecting rod 6 bottom and the spliced eye 8 that presses frame 7 surface mutually, press cap 9 peg graft with connecting rod 6 bottom mutually, press cap 9 inner wall is fixed in connecting rod 6 bottom through frictional force, can fix resistance body 1 through pressing frame 7 and fixed frame 4 mutually supporting, can promote resistance body 1 installation's stability, avoids resistance body 1 to take place the phenomenon of droing.
As shown in fig. 3, a fixing groove 5 is formed in the lower surface of the fixing frame 4, and the fixing frame 4 is connected with the edge of the upper surface of the resistor body 1 through the fixing groove 5.
The fixing frame 4 may be fixed to the top surface of the resistor body 1 through the fixing groove 5.
As shown in fig. 3, the surface of the pressing frame 7 is provided with a through hole 8 corresponding to the position of the connecting rod 6, and the bottom of the connecting rod 6 is movably inserted with a pressing cap 9.
It should be noted that, the pressing frame 7 can be inserted into the connecting rod 6 through the insertion hole 8, and the pressing cap 9 is inserted into the bottom of the connecting rod 6 to fix the pressing frame 7.
As shown in fig. 4, the two ends of the heat conducting strip 10 are welded to the inner wall of the fixed frame 4, the upper surface of the heat conducting strip 10 is provided with heat dissipation fins 11, the lower surface of the heat conducting strip 10 is coated with heat conducting silicone grease 12, and the lower surface of the heat conducting strip 10 is attached to the upper surface of the resistor body 1 through the heat conducting silicone grease 12.
It should be noted that, the bottom surface of the heat conducting fin 10 is attached to the surface of the resistor body 1 through the heat conducting silicone grease 12, the heat conducting silicone grease 12 has better heat conductivity, the heat generated by the resistor body 1 during operation is transferred to the heat conducting fin 10 through the heat conducting silicone grease 12, and the heat dissipation of the heat conducting fin 10 can be accelerated through the heat dissipating fin 11, so that the heat dissipation effect of the resistor body 1 during use can be improved.
Working principle: when the resistor is used, the bottom surface of the resistor body 1 is connected with the electricity connection part on the surface of the circuit board through the conductive patch 3, the fixing frame 4 is fixed on the top surface of the resistor body 1 through the fixing groove 5, the bottom of the connecting rod 6 penetrates through the fixing hole on the surface of the circuit board, the pressing frame 7 is positioned on the bottom surface of the circuit board, the bottom of the connecting rod 6 is spliced with the splicing hole 8 on the surface of the pressing frame 7, the pressing cap 9 is spliced with the bottom of the connecting rod 6, the inner wall of the pressing cap 9 is fixed at the bottom of the connecting rod 6 through friction, the pressing frame 7 and the fixing frame 4 are mutually matched to fix the resistor body 1, the mounting stability of the resistor body 1 can be improved, the falling phenomenon of the resistor body 1 is avoided, the bottom surface of the heat conducting sheet 10 is attached to the surface of the resistor body 1 through the heat conducting silicone 12, the heat generated during operation of the resistor body 1 is transferred onto the heat conducting sheet 10 through the heat conducting silicone 12, the heat dissipation of the heat conducting sheet 10 can be accelerated through the heat dissipation fin 11, and the heat dissipation effect of the resistor body 1 during use can be improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The low-square-resistance chip resistor with the anti-falling structure comprises a resistor body (1), an embedded groove (2) and conductive chips (3), and is characterized in that the embedded groove (2) is formed in two ends of the lower surface of the resistor body (1), and the conductive chips (3) are located in the embedded groove (2);
the resistor comprises a resistor body (1), wherein a fixed frame (4) is movably arranged on the top surface of the resistor body, a connecting rod (6) is fixedly connected to the corner of the lower surface of the fixed frame (4), and a pressing frame (7) is movably inserted at the bottom of the connecting rod (6);
the inner wall of the fixed frame (4) is equidistantly provided with a plurality of groups of heat conducting fins (10).
2. The low-square-resistance chip resistor with the anti-falling structure according to claim 1, wherein a fixing groove (5) is formed in the lower surface of the fixing frame (4), and the fixing frame (4) is connected with the edge of the upper surface of the resistor body (1) through the fixing groove (5).
3. The low-square-resistance chip resistor with the anti-falling structure according to claim 1, wherein the position of the surface of the pressing frame (7) corresponding to the position of the connecting rod (6) is provided with a plug hole (8) in a penetrating mode, and the bottom of the connecting rod (6) is movably plugged with a pressing cap (9).
4. The low sheet resistance chip resistor with the anti-falling structure according to claim 1, wherein two ends of the heat conducting sheet (10) are welded with the inner wall of the fixed frame (4).
5. The low sheet resistance chip resistor with the anti-falling structure according to claim 1, wherein the heat conducting fins (11) are arranged on the upper surfaces of the heat conducting fins (10).
6. The low-square-resistance chip resistor with the anti-falling structure according to claim 1, wherein the heat conduction silicone grease (12) is smeared on the lower surface of the heat conduction sheet (10), and the lower surface of the heat conduction sheet (10) is attached to the upper surface of the resistor body (1) through the heat conduction silicone grease (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155683.5U CN220509797U (en) | 2023-08-11 | 2023-08-11 | Low sheet resistance chip resistor with anti-drop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322155683.5U CN220509797U (en) | 2023-08-11 | 2023-08-11 | Low sheet resistance chip resistor with anti-drop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220509797U true CN220509797U (en) | 2024-02-20 |
Family
ID=89875958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322155683.5U Active CN220509797U (en) | 2023-08-11 | 2023-08-11 | Low sheet resistance chip resistor with anti-drop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220509797U (en) |
-
2023
- 2023-08-11 CN CN202322155683.5U patent/CN220509797U/en active Active
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