CN216500814U

CN216500814U - Ultra-precise NTC temperature distribution resistance screening equipment

Info

Publication number: CN216500814U
Application number: CN202122830010.6U
Authority: CN
Inventors: 焦裕明
Original assignee: Shenzhen Suiyi Electronics Co ltd
Current assignee: Shenzhen Suiyi Electronics Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-13
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses ultra-precise NTC temperature distribution resistor screening equipment which comprises a main board and a mounting plate, wherein a slide rail is mounted at the top of the main board, a slide plate is mounted at the top of the slide rail, the mounting plate is mounted at the top of the slide plate, a second mounting groove is formed in the top of the mounting plate, a pin groove is formed in the inner wall of the second mounting groove, a protective shell is mounted at the top of the mounting plate, and a metal guide rod penetrates through the inner wall of the protective shell. According to the utility model, the NTC temperature-distribution resistor is placed on the inner wall of the second mounting groove, the two pins of the NTC temperature-distribution resistor are inserted into the inner wall of the pin groove, so that the pins are contacted with the bottom end of the metal guide rod, the metal guide rod can conduct electricity, the NTC temperature-distribution resistor can be indirectly detected by directly contacting the top end of the metal guide rod through the test pen, and the phenomenon that the test pen point is directly contacted with the surface of the NTC temperature-distribution resistor to damage the surface of the NTC temperature-distribution resistor is avoided.

Description

Ultra-precise NTC temperature distribution resistance screening equipment

Technical Field

The utility model relates to the technical field of screening devices, in particular to ultra-precise NTC temperature distribution resistance screening equipment.

Background

NTC is that resistance reduces along with the temperature rise is the thermistor phenomenon and the material that the exponential relation reduces, has negative temperature coefficient, and the quality that an ultra-precise NTC joins in marriage warm resistance screening equipment of current can accurately detect NTC and join in marriage warm resistance carries out the quality screening to it, and the test pen detects through indirect mode, avoids test nib direct contact NTC to join in marriage warm resistance surface, causes the damage to it.

The existing NTC temperature distribution resistance screening equipment has the defects that:

1. the reference CN109115375B discloses a screening method and a screening system for thermistors, and the protection right "includes: clamping the standard thermistor through a tool clamp, so that the standard thermistor is arranged in a detection space formed by the tool clamp; communicating the detection space with a screening part of a universal resistance braider for screening the thermistor to be detected, and heating the detection space through the screening part so as to keep the detection temperature of the detection space consistent with the working temperature of the screening part; detecting a standard thermistor at the detection temperature to obtain a reference resistance value; the resistance value screening range of the universal resistance braider is set according to the reference resistance value, and the thermistor to be tested is screened according to the resistance value screening range, so that the screening efficiency of the thermistor can be improved, a large batch of thermistors can be rapidly screened, but a testing pen point of the thermistor directly contacts the surface of the NTC temperature distribution resistor, the surface of the NTC temperature distribution resistor is easily scratched, and the quality of the thermistor is influenced;

2. current NTC joins in marriage warm resistance screening installation need wrap up the constant temperature oil and measure when detecting, and the NTC joins in marriage warm resistance after the immersion oil needs to carry out deoiling and handles, influences detection efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide ultra-precise NTC temperature-matching resistor screening equipment to solve the problems that a test pen point directly contacts the surface of an NTC temperature-matching resistor and the detection efficiency is low in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the ultra-precise NTC temperature-distribution resistor screening equipment comprises a main board, a mounting plate and a heating cavity, wherein a slide rail is mounted at the top of the main board, a slide plate is mounted at the top of the slide rail, the mounting plate is mounted at the top of the slide plate, and the heating cavity is mounted at the top of the main board;

a second mounting groove is formed in the top of the mounting plate, a pin groove is formed in the inner wall of the second mounting groove, a protective shell is mounted on the top of the mounting plate, and a metal guide rod penetrates through the inner wall of the protective shell;

the resistance meter is installed at the top of mainboard, the installation pole is installed at the top in heating chamber, the top of installation pole is run through and is installed temperature sensor, the collecting box is installed to the bottom of mainboard.

Preferably, the heating pipe is installed to the inner wall in heating chamber, and the heating wire is installed to the inner wall of heating pipe, and control switch is installed at the top of mainboard.

Preferably, the bottom of mainboard installs the supporting leg, and the battery is installed to the bottom of mainboard.

Preferably, the top of the sliding plate is provided with a first mounting groove.

Preferably, the top of mainboard is installed L type pole, and the test pen is installed to the bottom of L type pole.

Preferably, the inner wall of the mounting rod is provided with a heat conducting rod.

Preferably, the top of the main board is provided with a throwing opening.

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

1. according to the utility model, the NTC temperature-distribution resistor is placed on the inner wall of the second mounting groove, two pins of the NTC temperature-distribution resistor are inserted into the inner wall of the pin groove, so that the pins are contacted with the bottom end of the metal guide rod, the metal guide rod can conduct electricity, the NTC temperature-distribution resistor can be indirectly detected by directly contacting the top end of the metal guide rod through the test pen, and the phenomenon that the test pen point is directly contacted with the surface of the NTC temperature-distribution resistor to damage the surface of the NTC temperature-distribution resistor is avoided;

2. the NTC temperature-distribution resistor is arranged on the mounting plate, the resistance value at the moment is measured by the first test pen after the NTC temperature-distribution resistor is arranged on the mounting plate, the heating wire works to emit heat, the heating pipe heats the heating cavity, the NTC temperature-distribution resistor moves on the sliding rail through the sliding plate, passes through the heating cavity and is heated, then the resistance value at the moment is measured by the second test pen, whether the resistance value is changed or not is compared, the change indicates that the NTC temperature-distribution resistor is good in quality, and otherwise, the quality is in problem.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of part A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a partial structure of a heating chamber according to the present invention;

fig. 4 is a schematic view of the structure of the portion of the mounting rod of the present invention.

In the figure: 1. a main board; 101. supporting legs; 102. a storage battery; 2. a slide rail; 201. a slide plate; 202. a first mounting groove; 3. a resistance value table; 301. an L-shaped rod; 302. a test pen; 4. mounting a plate; 401. a second mounting groove; 402. a lead groove; 403. a protective shell; 404. a metal guide rod; 5. a heating cavity; 501. heating a tube; 502. an electric heating wire; 503. a control switch; 504. mounting a rod; 6. a temperature sensor; 601. a heat conducting rod; 7. a collection box; 701. and (4) putting in the opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1: referring to fig. 1 and 4, an ultra-precise NTC temperature-distribution resistor screening apparatus includes a main board 1, a mounting plate 4 and a heating chamber 5, a slide rail 2 is installed on the top of the main board 1, a slide plate 201 is installed on the top of the slide rail 2, the mounting plate 4 is installed on the top of the slide plate 201, the heating chamber 5 is installed on the top of the main board 1, a resistance meter 3 is installed on the top of the main board 1, a mounting rod 504 is installed on the top of the heating chamber 5, a temperature sensor 6 is installed on the top of the mounting rod 504 in a penetrating manner, a collecting box 7 is installed on the bottom of the main board 1, a supporting leg 101 is installed on the bottom of the main board 1, a storage battery 102 is installed on the bottom of the main board 1, a first mounting groove 202 is opened on the top of the slide plate 201, an L-shaped rod 301 is installed on the top of the main board 1, a testing pen 302 is installed on the bottom of the L-shaped rod 301, a heat conducting rod 601 is installed on the inner wall of the mounting rod 504, a putting-in opening 701 is opened on the top of the main board 1, the mainboard 1 provides an installation position for the slide rail 2, the slide rail 2 provides an installation position for the slide plate 201, the slide plate 201 can slide on the slide rail 2, the mainboard 1 provides an installation position for the heating cavity 5, the mainboard 1 provides an installation position for the resistance meter 3, the resistance value measured by the test pen 302 is displayed through the resistance meter 3, the heating cavity 5 provides an installation position for the installation rod 504, the mainboard 1 provides an installation position for the collection box 7, the support leg 101 supports the equipment, the storage battery 102 provides a power source for the heating wire 502, the first installation groove 202 provides an installation position for the installation plate 4, the mainboard 1 provides an installation position for the L-shaped rod 301, the L-shaped rod 301 provides an installation position for the test pen 302, two ends of the resistance meter 3 are electrically connected with the test pen 302, the installation rod 504 provides an installation position for the heat conduction rod 601, the heat conduction rod 601 is contacted with the inner wall of the heating cavity 5 to transfer heat to the temperature sensor 6, detect the temperature in the heating chamber 5 to show, the high temperature in the heating chamber 5, accessible control switch 503 control heating wire 502 stop work, resources are saved, heating chamber 5 only need keep certain temperature to NTC temperature distribution resistance heating can, the extravagant electric power resource of high temperature can drop into collection box 7 through putting into mouth 701 with NTC temperature distribution resistance that the quality is not too much in, concentrate and collect.

Example 2: referring to fig. 1 and 2, a second mounting groove 401 is formed in the top of the mounting plate 4, a pin groove 402 is formed in the inner wall of the second mounting groove 401, a protective shell 403 is installed on the top of the mounting plate 4, a metal guide rod 404 is installed on the inner wall of the protective shell 403 in a penetrating manner, the protective shell 403 protects the metal guide rod 404, the NTC temperature-distribution resistor is placed on the inner wall of the second mounting groove 401, two pins of the NTC temperature-distribution resistor are inserted into the inner wall of the pin groove 402, so that the pins are in contact with the bottom end of the metal guide rod 404, the metal guide rod 404 is conductive, the NTC temperature-distribution resistor can be indirectly detected by directly contacting the top end of the metal guide rod 404 with the test pen 302, and the phenomenon that the tip of the test pen 302 directly contacts the surface of the NTC temperature-distribution resistor and damages the surface of the NTC temperature-distribution resistor is avoided.

Example 3: referring to fig. 1 and 3, a heating pipe 501 is installed on the inner wall of the heating chamber 5, an electric heating wire 502 is installed on the inner wall of the heating pipe 501, a control switch 503 is installed on the top of the main board 1, after the NTC temperature distribution resistor is installed on the installation board 4, the resistance value at this time is measured by the first test pen 302, the control switch 503 controls the electric heating wire 502 to work to emit heat, so that the heating pipe 501 heats the heating chamber 5, the NTC temperature distribution resistor moves on the slide rail 2 through the slide plate 201, passes through the heating chamber 5 and is heated, and then the resistance value at this time is measured by the second test pen 302, and whether the resistance value changes or not is compared, and the change indicates that the NTC temperature distribution resistor is good in quality, otherwise, the quality is problematic.

In the working principle, the control switch 503 controls the heating wire 502 to work to generate heat, so that the heating pipe 501 heats the heating chamber 5 in advance, the NTC temperature distribution resistor is placed on the inner wall of the second mounting groove 401, two pins of the NTC temperature distribution resistor are inserted into the inner wall of the pin groove 402, make the pin and the bottom contact of metal guide 404, slide 201 moves on slide rail 2, the nib of first test pen 302 slides the top of metal guide 404, measure the resistance value this moment, the resistance value shows through resistance value table 3, slide 201 moves on slide rail 2 next, through heating chamber 5, NTC distribution resistor is heated, the nib through second test pen 302 slides the top of metal guide 404 afterwards, the resistance value this moment is measured, whether its resistance value changes relatively, screen its quality problem, the unqualified NTC distribution resistor of quality drops into collection box 7 through input port 701, concentrate and collect.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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

1. The utility model provides an ultra-precise NTC joins in marriage temperature resistance screening installation, includes mainboard (1), mounting panel (4) and heating chamber (5), its characterized in that: the top of the main board (1) is provided with a sliding rail (2), the top of the sliding rail (2) is provided with a sliding plate (201), the top of the sliding plate (201) is provided with a mounting plate (4), and the top of the main board (1) is provided with a heating cavity (5);

a second mounting groove (401) is formed in the top of the mounting plate (4), a pin groove (402) is formed in the inner wall of the second mounting groove (401), a protective shell (403) is mounted on the top of the mounting plate (4), and a metal guide rod (404) penetrates through the inner wall of the protective shell (403);

resistance table (3) is installed at the top of mainboard (1), installation pole (504) are installed at the top in heating chamber (5), the top of installation pole (504) is run through and is installed temperature sensor (6), collecting box (7) are installed to the bottom of mainboard (1).

2. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: heating pipe (501) is installed to the inner wall in heating chamber (5), and heating wire (502) are installed to the inner wall of heating pipe (501), and control switch (503) are installed at the top of mainboard (1).

3. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: supporting legs (101) are installed to the bottom of mainboard (1), and battery (102) are installed to the bottom of mainboard (1).

4. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: the top of the sliding plate (201) is provided with a first mounting groove (202).

5. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: l type pole (301) are installed at the top of mainboard (1), and test pen (302) are installed to the bottom of L type pole (301).

6. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: the inner wall of the mounting rod (504) is provided with a heat conducting rod (601).

7. The ultra-precise NTC temperature-distribution resistance screening device of claim 1, wherein: the top of the main board (1) is provided with a throwing port (701).