CN212934292U - High-performance low-voltage piezoresistor - Google Patents
High-performance low-voltage piezoresistor Download PDFInfo
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- CN212934292U CN212934292U CN202021589161.6U CN202021589161U CN212934292U CN 212934292 U CN212934292 U CN 212934292U CN 202021589161 U CN202021589161 U CN 202021589161U CN 212934292 U CN212934292 U CN 212934292U
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- fixedly connected
- resistor
- threaded rod
- piezo
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Abstract
The utility model belongs to the technical field of the piezo-resistor and specifically relates to a high performance low pressure piezo-resistor, which comprises an outer shell, the inboard bottom fixedly connected with spring of shell, spring top fixedly connected with tray, tray top sliding connection has piezo-resistor, the inner wall of shell is equipped with the spout, the utility model discloses in, through spring, tray, threaded sleeve, threaded rod, knob and the stationary blade that sets up, through placing piezo-resistor on the tray, then rotate the knob and can make the threaded rod rotate, thereby the threaded rod length of threaded rod in the threaded sleeve internal rotation regulation shell is pressed from both sides piezo-resistor tightly through the stationary blade, thereby the position of adjusting piezo-resistor through the inside length difference of four threaded rods, this device has good positioning performance.
Description
Technical Field
The utility model relates to a piezo-resistor field specifically is a high performance low pressure piezo-resistor.
Background
The voltage dependent resistor is a voltage limiting type protection device, and by utilizing the nonlinear characteristic of the voltage dependent resistor, when overvoltage appears between two poles of the voltage dependent resistor, the voltage dependent resistor can clamp the voltage to a relatively fixed voltage value, so that the protection of a rear-stage circuit is realized, and the main parameters of the voltage dependent resistor are as follows: voltage dependent voltage, current capacity, junction capacitance, response time, etc.
The conventional piezoresistor does not have a good positioning function, and meanwhile, the conventional piezoresistor does not have good heat dissipation performance, so that the thermistor is easy to fail because heat cannot be dissipated after long-time working.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high performance low pressure piezo-resistor to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a high performance low pressure piezo-resistor, includes the shell, the inboard bottom fixedly connected with spring of shell, spring top fixedly connected with tray, tray top sliding connection has piezo-resistor, the inner wall of shell is equipped with the spout.
Preferably, the top end of the piezoresistor is slidably connected with a heat conducting fin, the top end of the heat conducting fin is fixedly connected with a heat radiating fin, the top end of the heat radiating fin is fixedly connected with a heat radiating fan, and the bottom end of the heat radiating fan is fixedly connected with a clamping strip.
Preferably, the number of the sliding grooves is 4, and the sliding grooves are uniformly distributed on the inner wall of the shell.
Preferably, the shell outside fixedly connected with threaded sleeve, the inboard threaded connection of threaded sleeve has the threaded rod, the one end fixedly connected with knob at shell center is kept away from to the threaded rod, the one end rotation that the threaded rod is close to the shell center is connected with the stationary blade, stationary blade and piezo-resistor sliding connection.
Preferably, the right side of the front end of the piezoresistor is fixedly connected with a stitch, the outer side of the stitch is slidably connected with a protection block, and the protection block is fixedly connected with the shell.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, through the arrangement of the spring, the support block, the threaded sleeve, the threaded rod, the knob and the fixing piece, the piezoresistor is placed on the support block, then the knob is rotated to rotate the threaded rod, the threaded rod rotates in the threaded sleeve so as to adjust the length of the threaded rod in the shell, the piezoresistor is clamped through the fixing piece, and the position of the piezoresistor is adjusted through the difference of the internal lengths of the four threaded rods, so that the device has good positioning performance;
2. the utility model discloses in, through the heat dissipation fan, fin, conducting strip and the card strip that set up, through placing the heat dissipation fan in the shell top, insert the spout through rotatory with the card strip for heat dissipation fan and casing block, spring and tray make piezo-resistor and conducting strip laminating, drive cold wind through the heat dissipation fan and scatter and disappear fast with the heat that the conducting strip transmitted for the fin, reach good radiating effect, thereby protect the long-time work of pressure sensitive can not be out of order because of the high temperature.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the mounting structure of the varistor of the present invention;
fig. 3 is a schematic view of the installation structure of the heat dissipation fan of the present invention.
In the figure: 1-shell, 2-spring, 3-support block, 4-piezoresistor, 5-heat conducting fin, 6-heat radiating fin, 7-heat radiating fan, 8-sliding groove, 9-clamping strip, 10-threaded sleeve, 11-threaded rod, 12-knob, 13-fixing piece, 14-pin and 15-protection block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a high performance low pressure piezo-resistor, includes shell 1, 1 inboard bottom fixedly connected with spring 2 of shell, 2 top fixedly connected with tray 3 of spring, 3 top sliding connection of tray have piezo-resistor 4, and the inner wall of shell 1 is equipped with spout 8.
The top end of the piezoresistor 4 is connected with a heat conducting fin 5 in a sliding manner, the top end of the heat conducting fin 5 is fixedly connected with a heat radiating fin 6, the top end of the heat radiating fin 6 is fixedly connected with a heat radiating fan 7, the bottom end of the heat radiating fan 7 is fixedly connected with a clamping strip 9, and cold air can be driven by the heat radiating fan 7 to quickly dissipate heat in the heat radiating fin 6; the number of the sliding grooves 8 is 4, and the sliding grooves 8 are uniformly distributed on the inner wall of the shell 1, so that the heat dissipation fan 7 is connected with the shell 1 more stably; the outer side of the shell 1 is fixedly connected with a threaded sleeve 10, the inner side of the threaded sleeve 10 is spirally connected with a threaded rod 11, one end, far away from the center of the shell 1, of the threaded rod 11 is fixedly connected with a knob 12, one end, close to the center of the shell 1, of the threaded rod 11 is rotatably connected with a fixing sheet 13, the fixing sheet 13 is in sliding connection with the piezoresistor 4, the threaded rod 11 can be rotated by rotating the knob 12, and the threaded rod 11 enables the position of the fixing sheet 13 to be changed; stitch 14 is fixedly connected with the right side of the front end of the piezoresistor 4, a protection block 15 is connected with the outer side of the stitch 14 in a sliding manner, the protection block 15 is fixedly connected with the shell 1, and the stitch 14 is protected by the protection block 15, so that the stitch 14 is not easy to break.
The working process is as follows: all electrical appliances in the device adopt an external power supply, the piezoresistor 4 adopts a high-performance low-voltage piezoresistor, the working performance is improved, the piezoresistor 4 is placed on a support block 3 at the inner side of a shell 1, a spring 2 is arranged below the support block 3, the spring 2 ensures that the piezoresistor 4 is not contacted with the shell 1, a heat dissipation space is provided, a threaded rod 11 can be rotated by rotating a knob 12, the threaded rod 11 is rotated and rotates in a threaded sleeve 10, so as to adjust the length of the threaded rod 11 at the inner side of the shell 1, the other end of the threaded rod 11 is rotatably connected with a fixing piece 3, the piezoresistor is positioned by adjusting the lengths of four threaded rods 11, pins 14 on the piezoresistor 4 penetrate through the shell 1 and penetrate through a protective block 15, the protective block 15 ensures that the pins 14 cannot be easily broken, a clamping strip 9 is inserted into a sliding chute 8, through rotatory heat dissipation fan 7 and 1 block connection of shell, heat dissipation fan 7 below fixedly connected with fin 6, fin 6 provides better heat dispersion, drives the tray 3 through spring 2 and makes piezo- resistor 4 and 5 laminating of conducting strip, better gives fin 6 with the heat transfer, drives cold wind through heat dissipation fan 7 and dispels the heat more fast for the heat that piezo-resistor 4 produced of working for a long time scatters and disappears fast.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A high-performance low-voltage varistor comprising a housing (1), characterized in that: the improved pressure-sensitive resistor is characterized in that a spring (2) is fixedly connected to the bottom end of the inner side of the shell (1), a supporting block (3) is fixedly connected to the top end of the spring (2), a pressure-sensitive resistor (4) is slidably connected to the top end of the supporting block (3), and a sliding groove (8) is formed in the inner wall of the shell (1).
2. A high performance low voltage varistor according to claim 1, characterized in that: the varistor (4) top sliding connection has conducting strip (5), conducting strip (5) top fixedly connected with fin (6), fin (6) top fixedly connected with heat dissipation fan (7), heat dissipation fan (7) bottom fixedly connected with card strip (9).
3. A high performance low voltage varistor according to claim 1, characterized in that: the number of the sliding grooves (8) is 4, and the sliding grooves (8) are uniformly distributed on the inner wall of the shell (1).
4. A high performance low voltage varistor according to claim 1, characterized in that: the utility model discloses a pressure-sensitive resistor, including shell (1), threaded sleeve (10) inboard screwed connection have threaded rod (11), the one end fixedly connected with knob (12) at shell (1) center is kept away from in threaded rod (11), threaded rod (11) are close to the one end rotation at shell (1) center and are connected with stationary blade (13), stationary blade (13) and piezo-resistor (4) sliding connection.
5. A high performance low voltage varistor according to claim 1, characterized in that: varistor (4) front end right side fixedly connected with stitch (14), stitch (14) outside sliding connection has protection piece (15), protection piece (15) and shell (1) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021589161.6U CN212934292U (en) | 2020-08-04 | 2020-08-04 | High-performance low-voltage piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021589161.6U CN212934292U (en) | 2020-08-04 | 2020-08-04 | High-performance low-voltage piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934292U true CN212934292U (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021589161.6U Active CN212934292U (en) | 2020-08-04 | 2020-08-04 | High-performance low-voltage piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934292U (en) |
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2020
- 2020-08-04 CN CN202021589161.6U patent/CN212934292U/en active Active
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