CN210690738U - High-precision digital transistor resistance testing device - Google Patents

Abstract

The utility model discloses a high accuracy digital transistor resistance testing arrangement relates to transistor resistance test field, and for solving among the prior art testing arrangement when the test, the transistor is not hard up easily, is unfavorable for going on of testing process, the not high problem of accuracy of while test. The utility model discloses a portable electronic device, including shell body, rechargeable battery, calculation center, digital ampere meter, transistor connecting seat, spring bolt, casing, rechargeable battery's inside bottom is provided with rechargeable battery, one side of rechargeable battery is provided with the rechargeable battery connector, rechargeable battery's top is provided with the mounting panel, be provided with the calculation center on the upper end surface of mounting panel, the calculation center includes and reads module, calculation module, display module, one side of calculation center is provided with the digital ampere meter, one side of digital ampere meter is provided with the digital voltmeter, one side of digital voltmeter is provided with detects the mouth, the inside that detects the mouth is provided with the transistor connecting seat, the inside that detects.

Description

High-precision digital transistor resistance testing device

Technical Field

The utility model relates to a transistor resistance test field specifically is a high accuracy digital transistor resistance test device.

Background

A transistor (transistor) is a solid semiconductor device, and the transistor, as a variable current switch, can control an output current based on an input voltage, and thus the transistor can play many roles in a circuit: there are mainly switches, amplifiers, varistors, etc., where different operating point settings determine different operating modes of the transistor, and the transistor resistance needs to be tested before the transistor is used, so that the transistor is applied at a suitable location.

When the existing testing device is used for testing, a transistor is easy to loosen, the testing process is not facilitated, the testing accuracy is low, the transistor is prevented from loosening and falling off in the testing process, and the accuracy of the testing result is improved; therefore, the market is urgently needed to develop a high-precision digital transistor resistance testing device to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy digital transistor resistance testing arrangement to current testing arrangement who proposes in solving above-mentioned background art is when the test, and the transistor is not hard up easily, is unfavorable for going on of testing process, the not high problem of accuracy of test simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high accuracy digital transistor resistance testing arrangement, includes the shell body, the inside bottom of shell body is provided with rechargeable battery, one side of rechargeable battery is provided with the rechargeable battery connector, rechargeable battery's top is provided with the mounting panel, be provided with the calculation center on the upper end surface of mounting panel, the calculation center includes reading module, calculation module, display module, one side of calculation center is provided with the digital ampere meter, one side of digital ampere meter is provided with the digital voltmeter, one side of digital voltmeter is provided with the detection mouth, the inside of detection mouth is provided with the transistor connecting seat, the inside of detection mouth is provided with two spring bolts, the one end of spring bolt is provided with the spring, the spring mounting is in the inside of locking the casing, the top of detection mouth is provided with the upper cover, be provided with test switch on the surface of upper cover, the inside of upper, Display screen, work pilot lamp, the display screen is located between test switch and the work pilot lamp.

Preferably, be provided with the mounting hole on the inner wall of detection mouth, the locking casing is located the mounting hole, and locking casing and detection mouth inner wall buckle are connected, be provided with the spacing groove on the surface of locking casing, the bottom of spring bolt is provided with the stopper, and the stopper is located the spacing inslot, the spring bolt is relative and put.

Preferably, the test switch, the work indicator light, the digital ammeter, the rechargeable battery and the transistor connecting seat are connected in series, the digital voltmeter is connected with the transistor connecting seat in parallel, and the digital ammeter is located between the digital voltmeter and the computing center.

Preferably, the input end of the reading module is electrically connected with the digital current meter and the digital voltmeter respectively, the output end of the reading module is electrically connected with the input end of the calculating module, the output end of the calculating module is electrically connected with the input end of the display module, and the output end of the display module is electrically connected with the display screen.

Preferably, be provided with the through-hole on the surface of upper cover, test switch, display screen, work pilot lamp are installed in through-hole department, and pass through screwed connection between test switch and the upper cover, display screen and work pilot lamp all are connected with upper cover glue.

Preferably, the rechargeable battery connector is electrically connected with the rechargeable battery, a through hole is formed in the side surface of the outer shell, the rechargeable battery connector is installed at the through hole, and the rechargeable battery connector is connected with the outer shell in a buckled mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a through set up two locking casings in the inside of detecting the mouth, the inside of locking casing sets up the spring, and one end of spring is supported in the bottom of spring bolt, sets up the spacing groove on the surface of locking casing simultaneously, sets up the stopper in the bottom of spring bolt, and the stopper is located the spacing groove, and two spring bolts are placed relatively, and this way when testing transistor resistance, the position of transistor can be tightly fixed to the spring bolt to avoided transistor resistance not hard up in the in-process of testing to drop, influenced whole test process;

2. the utility model discloses a through setting up the work pilot lamp, work pilot lamp and test switch, rechargeable battery, the digital ampere meter, the transistor connecting seat series connection, this can judge whether smooth this test circuit is unblocked through the work pilot lamp, avoided the staff can't judge whether normal operating's of test operation situation, and the digital ampere meter can measure more accurate current value, improved the accuracy of test result, set up the digital voltmeter simultaneously, the digital voltmeter is connected in parallel with the transistor connecting seat, this can be accurate detect out the voltage value of transistor resistance this moment detected;

3. the utility model discloses a through setting up the calculation center, the module input that reads in the calculation center respectively with the digital ampere meter, digital voltmeter electric connection, the output of reading the module and the input electric connection of calculation module, the output of calculation module and display module's input electric connection, display module's output and display screen electric connection, this can be through bringing the numerical value that reads from digital ampere meter and digital voltmeter into ohm law and calculate the transistor resistance value, and show through the display screen, convenient and fast, the result accuracy more of test simultaneously.

Drawings

FIG. 1 is an internal structural view of the present invention;

FIG. 2 is a flow chart of the computing center of the present invention;

fig. 3 is an internal structure view of the locking casing of the present invention.

In the figure: 1. an outer housing; 2. a rechargeable battery; 3. an upper cover; 4. a rechargeable battery connector; 5. mounting a plate; 6. a calculation center; 7. a detection port; 8. a latch bolt; 9. a transistor connection base; 10. a test switch; 11. a display screen; 12. a digital ammeter; 13. a digital voltmeter; 14. a reading module; 15. a calculation module; 16. a display module; 17. locking the housing; 18. a spring; 19. and a working indicator light.

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.

Referring to fig. 1-3, the present invention provides an embodiment: a high-precision digital transistor resistance testing device comprises an outer shell 1, a rechargeable battery 2 is arranged at the bottom end inside the outer shell 1, a rechargeable battery connector 4 is arranged on one side of the rechargeable battery 2, a mounting plate 5 is arranged above the rechargeable battery 2, a calculation center 6 is arranged on the outer surface of the upper end of the mounting plate 5, the calculation center 6 comprises a reading module 14, a calculation module 15 and a display module 16, a digital ammeter 12 is arranged on one side of the calculation center 6, a digital voltmeter 13 is arranged on one side of the digital ammeter 12, a detection port 7 is arranged on one side of the digital voltmeter 13, a transistor connecting seat 9 is arranged inside the detection port 7, two lock tongues 8 are arranged inside the detection port 7, a spring 18 is arranged at one end of each lock tongue 8, the spring 18 is arranged inside a locking shell 17, an upper cover 3 is arranged above the detection port 7, a test switch 10 is arranged on the outer, Display screen 11, work pilot lamp 19, display screen 11 is located between test switch 10 and work pilot lamp 19.

Further, be provided with the mounting hole on the inner wall of detection mouth 7, locking casing 17 is located the mounting hole, and locking casing 17 and detection mouth 7 inner wall buckle are connected, be provided with the spacing groove on locking casing 17's the surface, the bottom of spring bolt 8 is provided with the stopper, the stopper is located the spacing groove, spring bolt 8 is relative and put, this is when testing transistor resistance, the position of the fixed transistor that spring bolt 8 can be tight, thereby avoided transistor resistance not hard up dropping at the in-process of test, influence whole test procedure.

Further, the test switch 10, the work indicator light 19, the digital voltmeter 12, the rechargeable battery 2 and the transistor connecting seat 9 are connected in series, whether the test circuit is smooth or not can be judged through the work indicator light 19, the situation that whether the test operation is normally operated or not cannot be judged by a worker is avoided, a more accurate current value can be measured by the digital ammeter 12, the accuracy of a test result is improved, the digital voltmeter 13 is connected with the transistor connecting seat 9 in parallel, the digital ammeter 12 is located between the digital voltmeter 13 and the computing center 6, and the voltage value of the detected transistor resistor at the moment can be accurately detected.

Further, the input end of the reading module 14 is respectively electrically connected with the digital ammeter 12 and the digital voltmeter 13, the output end of the reading module 14 is electrically connected with the input end of the calculating module 15, the output end of the calculating module 15 is electrically connected with the input end of the display module 16, the output end of the display module 16 is electrically connected with the display screen 11, the resistance value of the transistor can be calculated by substituting the numerical value read from the digital ammeter 12 and the digital voltmeter 13 into the ohm law, and the numerical value is displayed through the display screen 11, so that the test is convenient and rapid, and meanwhile, the test result is more accurate.

Further, be provided with the through-hole on the surface of upper cover 3, test switch 10, display screen 11, work pilot lamp 19 are installed in through-hole department, and pass through screwed connection between test switch 10 and the upper cover 3, and display screen 11 and work pilot lamp 19 all are connected with 3 glue on the upper cover.

Further, rechargeable battery connector 4 and rechargeable battery 2 electric connection are provided with the through-hole on the side surface of shell body 1, and rechargeable battery connector 4 installs in through-hole department, and rechargeable battery connector 4 and shell body 1 buckle are connected.

The working principle is as follows: when in use, the transistor to be detected is inserted into the transistor connecting seat 9, the bolt 8 can tightly fix the position of the transistor at the moment, then the test switch 10 is turned on, since the test switch 10, the operation indicator lamp 19, the transistor connecting base 9, the rechargeable battery 2 and the digital ammeter 12 are connected in series, whether the test circuit is smooth or not is judged through the operation indicator lamp 19, when the operation indicator lamp 19 is on, indicating that current is flowing through the transistor, the digital voltmeter 13 can detect the voltage value, and transmits the value to the reading module 14, and the value detected by the digital ammeter 12 also transmits to the reading module 14, then the reading module 14 transmits the received numerical value to the calculating module 15, the calculating module 15 calculates the numerical value of the transistor resistance by using an ohm law formula and then transmits the numerical value to the display module 16, and the display module 16 transmits the result to the staff through the display screen 11.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A high accuracy digital transistor resistance testing arrangement, includes shell body (1), its characterized in that: the portable intelligent detection device is characterized in that a rechargeable battery (2) is arranged at the bottom end inside the outer shell (1), a rechargeable battery connector (4) is arranged on one side of the rechargeable battery (2), a mounting plate (5) is arranged above the rechargeable battery (2), a calculation center (6) is arranged on the outer surface of the upper end of the mounting plate (5), the calculation center (6) comprises a reading module (14), a calculation module (15) and a display module (16), a digital ammeter (12) is arranged on one side of the calculation center (6), a digital voltmeter (13) is arranged on one side of the digital ammeter (12), a detection port (7) is arranged on one side of the digital voltmeter (13), a transistor connecting seat (9) is arranged inside the detection port (7), two lock tongues (8) are arranged inside the detection port (7), a spring (18) is arranged at one end of each lock tongue (8), the spring (18) is installed in the locking shell (17), the upper cover (3) is arranged above the detection port (7), the outer surface of the upper cover (3) is provided with the test switch (10), the display screen (11) and the work indicator lamp (19), and the display screen (11) is located between the test switch (10) and the work indicator lamp (19).

2. A high precision digital transistor resistance test device according to claim 1, wherein: be provided with the mounting hole on the inner wall that detects mouth (7), locking casing (17) are located the mounting hole, and locking casing (17) and detect mouth (7) inner wall buckle connection, be provided with the spacing groove on the surface of locking casing (17), the bottom of spring bolt (8) is provided with the stopper, and the stopper is located the spacing inslot, spring bolt (8) are relative and put.

3. A high precision digital transistor resistance test device according to claim 1, wherein: the digital ammeter is characterized in that the test switch (10), the work indicator lamp (19), the digital ammeter (12), the rechargeable battery (2) and the transistor connecting seat (9) are connected in series, the digital voltmeter (13) is connected with the transistor connecting seat (9) in parallel, and the digital ammeter (12) is located between the digital voltmeter (13) and the calculation center (6).

4. A high precision digital transistor resistance test device according to claim 1, wherein: the input end of the reading module (14) is respectively electrically connected with the digital ammeter (12) and the digital voltmeter (13), the output end of the reading module (14) is electrically connected with the input end of the calculating module (15), the output end of the calculating module (15) is electrically connected with the input end of the display module (16), and the output end of the display module (16) is electrically connected with the display screen (11).

5. A high precision digital transistor resistance test device according to claim 1, wherein: be provided with the through-hole on the surface of upper cover (3), test switch (10), display screen (11), work pilot lamp (19) are installed in through-hole department, and pass through screwed connection between test switch (10) and upper cover (3), display screen (11) and work pilot lamp (19) all are connected with upper cover (3) glue.

6. A high precision digital transistor resistance test device according to claim 1, wherein: rechargeable battery connector (4) and rechargeable battery (2) electric connection, be provided with the through-hole on the side surface of shell body (1), rechargeable battery connector (4) are installed in through-hole department, and rechargeable battery connector (4) are connected with shell body (1) buckle.

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