CN210181080U - Input terminal insertion testing device and input terminal - Google Patents
Input terminal insertion testing device and input terminal Download PDFInfo
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- CN210181080U CN210181080U CN201920757486.1U CN201920757486U CN210181080U CN 210181080 U CN210181080 U CN 210181080U CN 201920757486 U CN201920757486 U CN 201920757486U CN 210181080 U CN210181080 U CN 210181080U
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- input terminal
- elastic sheet
- terminal
- circuit board
- shell
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Abstract
The utility model discloses an input terminal insertion measuring device, which comprises a shell, a circuit board arranged in the shell and a plurality of terminal jacks penetrating through the shell, wherein piezoelectric ceramics is electrically connected to the circuit board corresponding to at least one terminal jack and comprises a first elastic sheet and a second elastic sheet, the first elastic sheet is electrically connected with the circuit board, and the second elastic sheet is fixed on the first elastic sheet corresponding to the terminal jack; an input terminal is also disclosed. The utility model relates to a rationally ingenious, simple structure simplifies the circuit widely, practices thrift the area occupied of circuit board, low in production cost, and long service life has nimble extended functionality simultaneously, makes to insert input terminal and obtains continuous insertion signal, and application range is extensive.
Description
Technical Field
The utility model relates to a measuring instrument technical field, concretely relates to input terminal inserts surveys device and input terminal.
Background
At present, a measuring instrument such as a stylus of a universal meter is generally connected with 2 to 4 input terminals, but a novice user is unfamiliar with using the universal meter and often inserts the input terminals in terminal jacks in a wrong way, so that the use is inconvenient. The input terminal of the existing multimeter is inserted and tested the device to adopt the photoelectric sensing way in order to detect the input terminal is inserted and tested, it needs a set of infrared ray to send, receiving arrangement can realize, and infrared sending, receiving arrangement have circuit complicated, component many, with high costs, circuit board occupation area large, luminescent device inconvenient disadvantage fixed, so that this kind of input terminal is inserted and tested the device and must be equipped with only in few high-grade meters or specialized instrument.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem, the utility model discloses an input terminal inserts surveys device and input terminal.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
the utility model provides an input terminal inserts survey device, its includes the shell, set up in circuit board in the shell and a plurality of terminal jack that run through the shell setting, in correspond at least one on the circuit board terminal jack electric connection has piezoceramics, piezoceramics includes first shell fragment and second shell fragment, first shell fragment with circuit board electric connection, the second shell fragment corresponds the terminal jack is fixed in on the first shell fragment.
The input terminal inserting and measuring device is characterized in that the terminal jack is provided with an avoiding through hole, and the second elastic sheet is correspondingly arranged at the avoiding through hole, so that the piezoelectric ceramic is prevented from being extruded when the input terminal is inserted.
The terminal jack comprises an inner side wall and an outer side wall, a cavity for inserting the input terminal is formed between the inner side wall and the outer side wall, and the avoiding through hole is formed in the outer side wall and facilitates smooth insertion of the input terminal into the cavity.
In the above-mentioned device for testing the insertion of the input terminal, the height of the inner sidewall is less than or equal to the height of the outer sidewall.
The input terminal insertion testing device is characterized in that the inner side wall and the outer side wall are integrally formed.
In the above input terminal insertion device, the terminal insertion hole is a plastic body or a metal spring.
In the input terminal insertion measuring device, the second elastic sheet penetrates through the avoiding through hole and is arranged in the cavity, so that the piezoelectric ceramic is deformed when the input terminal is inserted.
The input terminal is inserted with the measuring device, wherein an included angle between the first elastic sheet and the second elastic sheet is an acute angle, so that the piezoelectric ceramic is elastically reset when deformed, and the service life is prolonged.
According to the input terminal plugging and measuring device, the second elastic sheet is provided with the buffering protrusion, and the joint of the second elastic sheet and the buffering protrusion is correspondingly arranged in the cavity, so that the input terminal can be conveniently and smoothly plugged or pulled out, and the service life is prolonged.
In the above-mentioned device for inserting and measuring the input terminal, an included angle between the second elastic sheet and the buffering protrusion is an obtuse angle.
The input terminal plugging and testing device comprises a circuit board, wherein the circuit board comprises a rectifying circuit, the input end of the rectifying circuit is connected with the piezoelectric ceramics, and if the input terminal is plugged into the correct terminal jack, even if the piezoelectric ceramics is deformed to generate alternating current, the alternating current is rectified by the rectifying circuit and output; and if the input terminal is not inserted into the correct terminal jack, the alternating current is not generated, so that whether the input terminal is inserted correctly is judged.
The input terminal insertion testing device is characterized in that the terminal insertion holes penetrate through the circuit board.
An input terminal is inserted in the input terminal insertion testing device.
In the input terminal, the peripheral surface of the insertion end of the input terminal is provided with a plurality of trapezoidal ring grooves at intervals, the second elastic sheet is clamped on the trapezoidal ring grooves, and in the insertion process of the input terminal, the input terminal continuously extrudes the piezoelectric ceramic, so that continuous insertion signals are obtained, and the input terminal has flexible expansibility.
The utility model has the advantages that: the utility model relates to a rationally ingenious, simple structure simplifies the circuit widely, practices thrift the area occupied of circuit board, low in production cost, and long service life has nimble extended functionality simultaneously, makes to insert input terminal and obtains continuous insertion signal, and application range is extensive.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic front view of the input terminal insertion measuring device of the present invention;
fig. 3 is a schematic top view of the input terminal insertion device of the present invention;
fig. 4 is a schematic perspective view of the input terminal of the present invention.
Detailed Description
Example (b): referring to fig. 1 to 4, the input terminal insertion testing apparatus provided in this embodiment includes a housing 1, a circuit board 21 disposed in the housing 1, and a plurality of terminal insertion holes penetrating through the housing 1, where the circuit board 21 is electrically connected to piezoelectric ceramics corresponding to at least one of the terminal insertion holes, the piezoelectric ceramics includes a first elastic sheet 22 and a second elastic sheet 23, the first elastic sheet 22 is electrically connected to the circuit board 21, and the second elastic sheet 23 is fixed to the first elastic sheet 22 corresponding to the terminal insertion hole.
In this embodiment, the terminal insertion hole is provided with an avoiding through hole 31, and the second elastic sheet 23 is correspondingly arranged at the avoiding through hole 31, so as to avoid hindering the extrusion of the piezoelectric ceramic when the input terminal 41 is inserted.
Preferably, the terminal insertion hole includes an inner sidewall 32 and an outer sidewall 33, a cavity 34 for inserting the input terminal 41 is formed between the inner sidewall 32 and the outer sidewall 33, and the avoiding through hole 31 is disposed on the outer sidewall 33, so that the input terminal 41 can be smoothly inserted into the cavity 34.
Preferably, the height of the inner sidewall 32 is less than or equal to the height of the outer sidewall 33.
Specifically, the inner side wall 32 and the outer side wall 33 are integrally formed, and the terminal jack is a plastic body or a metal elastic sheet.
Specifically, the number of the terminal jacks is three, and the piezoelectric ceramic is arranged corresponding to one of the terminal jacks.
Preferably, the second elastic sheet 23 passes through the avoiding through hole 31 and is disposed in the cavity 34, so as to deform the piezoelectric ceramic when the input terminal 41 is inserted.
In this embodiment, an included angle between the first elastic sheet 22 and the second elastic sheet 23 is an acute angle, so that the piezoelectric ceramic is elastically restored when deformed, and the service life is prolonged.
Preferably, the second elastic sheet 23 is provided with a buffering protrusion 24, and a joint of the second elastic sheet 23 and the buffering protrusion 24 is correspondingly arranged in the cavity 34, so that the input terminal 41 can be conveniently and smoothly inserted or pulled out, and the service life is prolonged.
Preferably, an included angle between the second elastic sheet 23 and the buffering protrusion 24 is an obtuse angle.
In this embodiment, the circuit board 21 includes a rectifying circuit, an input end of the rectifying circuit is connected to the piezoelectric ceramic, and if the input terminal 41 is inserted into the correct terminal insertion hole, even if the piezoelectric ceramic is deformed to generate an alternating current, the alternating current is rectified by the rectifying circuit and a direct current is output; if the input terminal 41 is not inserted into the correct terminal insertion hole, the alternating current is not generated, so as to determine whether the input terminal 41 is inserted correctly.
Specifically, the terminal insertion holes are provided through the circuit board 21.
The embodiment also provides an input terminal 41, wherein the input terminal 41 is inserted into the input terminal insertion testing device.
Preferably, a plurality of trapezoidal ring grooves 42 are formed in the outer peripheral surface of the insertion end of the input terminal 41 at intervals, and the second elastic sheet 23 is clamped on the trapezoidal ring grooves 42; the number of the trapezoidal ring grooves 42 is set according to the actual use condition; during the process of inserting the input terminal 41, the input terminal 41 continuously presses the piezoelectric ceramic, so that a continuous insertion signal is obtained, and flexible expansibility is achieved.
When the utility model is used, the input terminal 41 is inserted into the terminal jack, if the input terminal 41 extrudes the piezoelectric ceramic, the direct current is finally output, so that the input terminal 41 is judged to be correctly inserted; if the input terminal 41 is not pressed to the piezoelectric ceramic, the direct current is not finally output, so that the erroneous insertion of the input terminal 41 is judged and prompted.
The utility model relates to a rationally ingenious, simple structure simplifies the circuit widely, practices thrift the area occupied of circuit board, low in production cost, and long service life has nimble extended functionality simultaneously, makes to insert input terminal and obtains continuous insertion signal, and application range is extensive.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the protection scope of the present invention should be covered by the equivalent changes made according to the shape, structure and principle of the present invention, all without departing from the technical solution of the present invention.
Claims (10)
1. The utility model provides an input terminal inserts survey device, its includes the shell, its characterized in that, it still including set up in circuit board and a plurality of terminal jack that run through in the shell set up, in correspond at least one on the circuit board terminal jack electric connection has piezoceramics, piezoceramics includes first shell fragment and second shell fragment, first shell fragment with circuit board electric connection, the second shell fragment corresponds the terminal jack is fixed in on the first shell fragment.
2. The input terminal plugging and testing device according to claim 1, wherein an avoiding through hole is formed in the terminal jack, and the second elastic sheet is correspondingly arranged at the avoiding through hole.
3. The input terminal plugging device according to claim 2, wherein the terminal plug hole comprises an inner sidewall and an outer sidewall, a cavity for an input terminal to be plugged is formed between the inner sidewall and the outer sidewall, and the avoiding through hole is disposed on the outer sidewall.
4. The input terminal insertion device of claim 3, wherein the inner sidewall and the outer sidewall are integrally formed.
5. The input terminal plugging and testing device according to claim 3, wherein said second resilient tab is disposed in said cavity through said avoiding through hole.
6. The apparatus according to claim 5, wherein an included angle between the first resilient piece and the second resilient piece is an acute angle.
7. The device for testing the insertion of the input terminal of claim 6, wherein the second elastic sheet is provided with a buffering protrusion, and the joint of the second elastic sheet and the buffering protrusion is correspondingly arranged in the cavity.
8. The device for testing the insertion of the input terminal of claim 7, wherein an included angle between the second elastic sheet and the buffering protrusion is an obtuse angle.
9. An input terminal, characterized in that it is inserted into the input terminal insertion device according to any one of claims 1 to 8.
10. The input terminal as claimed in claim 9, wherein the outer peripheral surface of the insertion end of the input terminal is provided with a plurality of trapezoidal ring grooves at intervals, and the second resilient piece is clamped on the trapezoidal ring grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757486.1U CN210181080U (en) | 2019-05-24 | 2019-05-24 | Input terminal insertion testing device and input terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757486.1U CN210181080U (en) | 2019-05-24 | 2019-05-24 | Input terminal insertion testing device and input terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210181080U true CN210181080U (en) | 2020-03-24 |
Family
ID=69834542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920757486.1U Active CN210181080U (en) | 2019-05-24 | 2019-05-24 | Input terminal insertion testing device and input terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210181080U (en) |
-
2019
- 2019-05-24 CN CN201920757486.1U patent/CN210181080U/en active Active
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