CN219696168U - Chip type multilayer piezoresistor - Google Patents
Chip type multilayer piezoresistor Download PDFInfo
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- CN219696168U CN219696168U CN202321350850.5U CN202321350850U CN219696168U CN 219696168 U CN219696168 U CN 219696168U CN 202321350850 U CN202321350850 U CN 202321350850U CN 219696168 U CN219696168 U CN 219696168U
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- 230000000694 effects Effects 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a chip multilayer varistor, which belongs to the technical field of piezoresistors and aims at solving the problems of insufficient use convenience and poor protection property of the chip multilayer varistor, and the chip multilayer varistor comprises a resistor body, wherein two pin frames are fixed at the lower end of the resistor body, sliding grooves are formed in the middle parts of the two pin frames, sliding discs are connected to the inner walls of the two sliding grooves in a sliding manner, limit springs are fixed at the close ends of the two sliding discs, clamping blocks are fixed at the separating ends of the two sliding discs, a circuit board is arranged on the outer surface of each of the two clamping blocks, two placing grooves are formed in the upper end of each of the circuit boards, and clamping grooves are formed in the middle parts of the two placing grooves; according to the utility model, the force-bearing disc is pressed by manpower to move, so that the effect of convenient installation and disassembly is realized, the effect of improving the use convenience of the chip multilayer piezoresistor is achieved, the rubber pad is extruded by the circuit board to move, the protection effect is realized, and the effect of improving the protection of the chip multilayer piezoresistor is achieved.
Description
Technical Field
The utility model belongs to the technical field of piezoresistors, and particularly relates to a chip multilayer piezoresistor.
Background
With the development of miniaturization, thinning, integration and multifunction of electronic products, piezoresistors have been developed into multilayer chip piezoresistors, which have the characteristics of small size, light weight, high reliability and the like, and are thus widely used in various fields.
Although the conventional chip multilayer varistor can perform daily circuit protection operation, in the actual use process, the chip multilayer varistor is welded on the circuit board in a welding mode, although the connection operation of the chip multilayer varistor can be performed, the chip multilayer varistor is inconvenient to disassemble, inconvenience is brought to later maintenance and replacement operations, the use convenience of the chip multilayer varistor is further insufficient, and the chip multilayer varistor is connected with the circuit board only by virtue of pins, so that the chip multilayer varistor and the circuit board collide with each other when collision occurs, and the chip multilayer varistor and the circuit board are easily damaged, so that the protection performance of the chip multilayer varistor is poor.
Therefore, there is a need for a monolithic multilayer varistor, which solves the problems of insufficient convenience in use and poor protection of the monolithic multilayer varistor in the prior art.
Disclosure of Invention
The present utility model is directed to a chip multilayer varistor for solving the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a piece formula multilayer piezo-resistor, includes the resistance body, the resistance body lower extreme is fixed with two pin racks, two the spout has all been seted up at pin rack middle part, two equal sliding connection of spout inner wall has the slide, two the close end of slide all is fixed with spacing spring, two the slide all is fixed with the fixture block from the end, two the fixture block surface is provided with the circuit board, two standing grooves have been seted up to the circuit board upper end, two the draw-in groove has all been seted up at the standing groove middle part, resistance body four corners all is fixed with the protection frame, every the protection groove has all been seted up inside the protection frame, every the equal sliding connection of protection groove inner wall has two protection discs, two of which the close end of protection disc is fixed with protection spring, two of which the protection disc all is fixed with the rubber pad from the end.
In the scheme, it is to be noted that two the tripod is from the side all to offer the through hole, every the through hole runs through at every spout is from the side, every fixture block surface sliding connection is at every through hole inner wall, every the pin frame surface contacts with every standing groove inner wall, every the fixture block surface contacts with every draw-in groove inner wall, every the pin frame cross section is circular setting, every the fixture block all is oval setting, every the draw-in groove all is the arc setting.
It is further worth to say that every limit spring one end is fixed in every slide one end, every limit spring other end is fixed in every spout inner wall, every slide perpendicular tangent plane all is circular setting.
It should be further noted that, every the protection frame runs through at resistance body one corner, every the protection frame all is cylindrical setting, every the protection frame middle part has all been seted up and has been run through the groove, every run through the groove and run through at every protection groove middle part, every rubber pad surface sliding connection is at every run through the inslot wall.
As a preferred implementation mode, two the guard disk surface sliding connection is in one of them guard groove both sides inner wall, one of them guard spring both ends are fixed in two wherein guard disk near ends, every guard disk cross section is circular setting.
As a preferred implementation mode, the upper end of the resistor body is fixedly provided with a stress disc, and the transverse section of the stress disc is circular.
Compared with the prior art, the chip multilayer varistor provided by the utility model at least comprises the following beneficial effects:
(1) The stress disc is pressed by manpower to move, so that the stress disc, the resistor body, the pin frame, the placing groove, the clamping block, the sliding disc, the sliding groove and the limiting spring are matched with each other to realize the effect of convenient installation and disassembly, and provide convenience for the installation and disassembly operation of the chip type multilayer piezoresistor of a worker, and further achieve the effect of improving the use convenience of the chip type multilayer piezoresistor.
(2) The rubber pad is extruded by the circuit board to move, so that the rubber pad, the protection disc, the protection frame, the protection spring and the protection groove are mutually matched to realize the protection effect, the circuit board and the chip multilayer piezoresistor can be protected, and the effect of improving the protection performance of the chip multilayer piezoresistor is achieved.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a schematic diagram of a leadframe structure according to the present utility model;
FIG. 3 is an enlarged schematic view of the area A in FIG. 2;
FIG. 4 is a cross-sectional view of a guard frame according to the present utility model.
In the figure: 1. a resistor body; 2. a tripod; 3. a chute; 4. a slide plate; 5. a limit spring; 6. a clamping block; 7. a circuit board; 8. a placement groove; 9. a clamping groove; 10. a protective frame; 11. a protective groove; 12. a protective disk; 13. a protective spring; 14. a rubber pad; 15. a through groove; 16. a through hole; 17. and a force-bearing plate.
Detailed Description
The utility model is further described below with reference to examples.
Referring to fig. 1-4, the present utility model provides a chip multilayer varistor, including a resistor body 1, the resistor body 1 is a chip multilayer varistor, the varistor is a voltage limiting type protection device, the varistor can clamp a voltage to a relatively fixed voltage value when a voltage appears between two poles of the varistor by using the nonlinear characteristic of the varistor, thereby realizing protection of a post-stage circuit, two lead frames 2 are fixed at the lower end of the resistor body 1, the lead frames 2 are connected with a circuit board 7, sliding grooves 3 are formed in the middle parts of the two lead frames 2, the sliding grooves 3 provide a sliding place for sliding of two sliding discs 4, sliding discs 4 are connected with the inner walls of the two sliding grooves 3 in a sliding manner, the sliding discs 4 are matched with a limiting spring 5 to complete convenient installation and disassembly, the limiting springs 5 are fixed at the similar ends of the two sliding discs 4, the spacing spring 5 provides the function of elastic force support, the two slide plates 4 are fixed with clamping blocks 6 at the separated ends, the clamping blocks 6 are mutually matched with clamping grooves 9, the function of installing and fixing the sheet type multilayer piezoresistor is carried out, the outer surfaces of the two clamping blocks 6 are provided with circuit boards 7, two placing grooves 8 are formed at the upper ends of the circuit boards 7, clamping grooves 9 are formed in the middle parts of the two placing grooves 8, protection frames 10 are fixed at four corners of the resistor body 1, the protection frames 10 play a role of protection, protection grooves 11 are formed in the inner parts of each protection frame 10, the protection grooves 11 provide the place support for the installation of the protection springs 13, the inner wall of each protection groove 11 is slidably connected with two protection plates 12, the protection plates 12 play the role of protection, the protection springs 13 are fixed at the adjacent ends of the two protection plates 12, the protection springs 13 provide the function of elastic force support, rubber pads 14 are fixed at the separated ends of the two protection plates 12, the rubber pad 14 can be elastically deformed in the lateral direction.
Further, as shown in fig. 1, fig. 2 and fig. 3, it is worth specifically explaining that the opposite sides of the two pin frames 2 are provided with through holes 16, each through hole 16 penetrates through the opposite side of each sliding groove 3, the outer surface of each clamping block 6 is slidably connected to the inner wall of each through hole 16, the outer surface of each tripod 2 is contacted with the inner wall of each placing groove 8, the outer surface of each clamping block 6 is contacted with the inner wall of each clamping groove 9, the cross section of each tripod 2 is circular, each clamping block 6 is oval, each clamping groove 9 is arc-shaped, one end of each limiting spring 5 is fixed at one end of each sliding disc 4, the other end of each limiting spring 5 is fixed at the inner wall of each sliding groove 3, and the vertical section of each sliding disc 4 is circular.
Further, as shown in fig. 1, fig. 2 and fig. 4, each protection frame 10 penetrates through a corner of the resistor body 1, each protection frame 10 is in a cylindrical shape, a penetrating groove 15 is formed in the middle of each protection frame 10, each penetrating groove 15 penetrates through the middle of each protection groove 11, the outer surface of each rubber pad 14 is slidably connected to the inner wall of each penetrating groove 15, the outer surfaces of the two protection discs 12 are slidably connected to the inner walls of two sides of one protection groove 11, two ends of one protection spring 13 are fixed to the similar ends of the two protection discs 12, and the cross section of each protection disc 12 is in a circular shape.
The scheme comprises the following working processes: when the chip multilayer varistor is used, firstly, the two pin frames 2 fixedly connected with the lower end of the resistor body 1 are aligned with the two placing grooves 8 formed at the upper end of the circuit board 7, then the stress disc 17 is pressed by manpower to move, so that the resistor body 1 fixedly connected with the stress disc 17 is forced to move, the two pin frames 2 fixedly connected with the lower end of the resistor body 1 slide into the two placing grooves 8, in the process, the clamping blocks 6 slidingly connected with the middle parts of the pin frames 2 are extruded by the placing grooves 8 to carry out sliding operation, the sliding disc 4 fixedly connected with the clamping blocks 6 slides under the limit of the sliding grooves 3, the limiting springs 5 fixedly connected with the sliding disc 4 are compressed under the support of the sliding grooves 3, the clamping blocks 6 obtain compression spaces, and the pin frames 2 can slide into the inside of the placing grooves 8, when the clamping block 6 slides to the clamping groove 9, the extrusion force disappears, so that the limit spring 5 is pushed by the elasticity generated by compression to reset the sliding disc 4, further the clamping block 6 fixedly connected with the other end of the sliding disc 4 resets and slides into the inner wall of the clamping groove 9, the effect of convenient installation and disassembly is completed, the convenience condition is provided for the installation and disassembly operation of the sheet-type multilayer piezoresistor of a worker, the effect of improving the convenience in use of the sheet-type multilayer piezoresistor is further achieved, when the circuit board 7 collides, the rubber pad 14 is extruded by the circuit board 7 to move, the rubber pad 14 is extruded to perform sliding operation on the impact force while the rubber pad 14 is weakened, so that the protection spring 13 fixedly connected with the other end of the protection disc 12 is compressed, the compressed protection spring 13 generates elasticity to support the impact force to be weakened again, and the protection effect is completed, the protection operation can be carried out on the circuit board 7 and the chip multilayer piezoresistor, so that the effect of improving the protection performance of the chip multilayer piezoresistor is achieved.
The working process can be as follows: the force-bearing disc 17 is pressed by manpower to move, the resistor body 1 fixedly connected with the force-bearing disc 17 drives the two pin racks 2 to be inserted into the two placing grooves 8, the effect of convenient installation and disassembly is achieved, convenience is provided for the installation and disassembly operation of the chip type multilayer piezoresistor of a worker, the effect of improving the use convenience of the chip type multilayer piezoresistor is further achieved, then the rubber pad 14 is extruded by the circuit board 7 to move, the protection disc 12 fixedly connected with the rubber pad 14 extrudes the protection spring 13, the protection effect is achieved, the protection operation can be carried out on the circuit board 7 and the chip type multilayer piezoresistor, and the effect of improving the protection of the chip type multilayer piezoresistor is further achieved.
Further as shown in fig. 1, it is worth specifically explaining that the upper end of the resistor body 1 is fixed with the force-bearing disc 17, the cross section of the force-bearing disc 17 is circular, the force-bearing disc 17 is convenient for the staff to press the effect, the resistor body 1 is protected, and the pressing force is prevented from damaging the chip multilayer piezoresistor.
To sum up: the effect that makes things convenient for the staff to press through the atress dish 17 that sets up, the effect of protecting resistor body 1 prevents to press the effect that the power damages the chip multilayer piezo-resistor.
The components adopted by the utility model are all general standard components or components known to the person skilled in the art, and the structures and principles of the components are all known to the person skilled in the art through technical manuals or through routine experimental methods.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present utility model still fall within the scope of the present utility model.
Claims (6)
1. A chip multilayer varistor comprising a resistor body (1), characterized in that:
two pin frames (2) are fixed at the lower end of the resistor body (1), sliding grooves (3) are formed in the middle of each pin frame (2), sliding discs (4) are slidably connected to the inner walls of the sliding grooves (3), limiting springs (5) are fixed at the similar ends of the sliding discs (4), clamping blocks (6) are fixed at the separating ends of the sliding discs (4), a circuit board (7) is arranged on the outer surface of each clamping block (6), two placing grooves (8) are formed in the upper ends of the circuit board (7), and clamping grooves (9) are formed in the middle of each placing groove (8);
the resistor is characterized in that protection frames (10) are fixed at four corners of the resistor body (1), protection grooves (11) are formed in the protection frames (10), two protection discs (12) are connected to the inner walls of the protection grooves (11) in a sliding mode, protection springs (13) are fixed at the similar ends of the protection discs (12), and rubber pads (14) are fixed at the separated ends of the two protection discs (12).
2. A monolithic multilayer varistor according to claim 1, wherein:
the opposite sides of the two pin frames (2) are provided with through holes (16), each through hole (16) penetrates through the opposite side of each chute (3), and the outer surface of each clamping block (6) is connected to the inner wall of each through hole (16) in a sliding manner;
the outer surface of each pin frame (2) is contacted with the inner wall of each placing groove (8);
the outer surface of each clamping block (6) is contacted with the inner wall of each clamping groove (9);
every pin frame (2) cross section is circular setting, every fixture block (6) all is oval setting, every draw-in groove (9) all is the arc setting.
3. A monolithic multilayer varistor according to claim 1, wherein:
one end of each limit spring (5) is fixed at one end of each slide plate (4), the other end of each limit spring (5) is fixed at the inner wall of each chute (3), and the vertical section of each slide plate (4) is circular.
4. A monolithic multilayer varistor according to claim 1, wherein:
every protection frame (10) runs through in resistance body (1) one corner, every protection frame (10) all is cylindrical setting, every run through groove (15) have all been seted up at protection frame (10) middle part, every run through groove (15) runs through at every protection groove (11) middle part, every rubber pad (14) surface sliding connection is at every run through groove (15) inner wall.
5. A monolithic multilayer varistor according to claim 1, wherein:
wherein two the guard plate (12) surface sliding connection is in one of them guard groove (11) both sides inner wall, one of them guard spring (13) both ends are fixed at two wherein guard plate (12) near ends, every guard plate (12) cross section is circular setting.
6. A monolithic multilayer varistor according to claim 1, wherein:
the resistor is characterized in that a stress disc (17) is fixed at the upper end of the resistor body (1), and the transverse section of the stress disc (17) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350850.5U CN219696168U (en) | 2023-05-31 | 2023-05-31 | Chip type multilayer piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321350850.5U CN219696168U (en) | 2023-05-31 | 2023-05-31 | Chip type multilayer piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696168U true CN219696168U (en) | 2023-09-15 |
Family
ID=87961760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321350850.5U Active CN219696168U (en) | 2023-05-31 | 2023-05-31 | Chip type multilayer piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696168U (en) |
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2023
- 2023-05-31 CN CN202321350850.5U patent/CN219696168U/en active Active
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