CN213122231U

CN213122231U - Test tool

Info

Publication number: CN213122231U
Application number: CN202022174613.0U
Authority: CN
Inventors: 朱高贵
Original assignee: Midea Intelligent Lighting and Controls Technology Co Ltd
Current assignee: Midea Intelligent Lighting and Controls Technology Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-05-04
Anticipated expiration: 2030-09-28

Abstract

The utility model provides a testing tool, which comprises a body, a testing piece and a plurality of testing parts, wherein the body is provided with an installation part for installing the testing piece to be tested; the detection piece is arranged on the body in an openable manner; the detection part sets up on detecting the piece, and every detection part all sets up towards the installation department to, every detection part all includes photosensitive detection circuit, and feeds back the test result that corresponds according to the luminous condition of waiting to test the piece. Specifically, through treating the test piece and detecting when detecting the piece closure, realized whether luminous through photosensitive detection circuitry detection test piece that awaits measuring, and then can feed back the test result that corresponds according to the luminous condition of test piece that awaits measuring to whether the realization is unusual can be quick accurate judgement to the lamp pearl of test piece that awaits measuring.

Description

Test tool

Technical Field

The utility model relates to a light test technical field particularly, involves a test fixture.

Background

With the popularization and application of LEDs (Light Emitting diodes) in the illumination field, the efficiency of a test method for individually testing a PCBA board of a Light source by a handle in the production and detection process of an LED Light source lamp panel or judging whether the lamp beads of the Light source board are normally on or off by a test method of visual inspection is low.

Therefore, a technical scheme capable of efficiently detecting the light source lamp panel is needed at present.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the utility model discloses an aspect provides a test fixture.

In view of this, the utility model provides a test fixture, include: the testing device comprises a body, wherein the body is provided with an installation part which is suitable for installing a piece to be tested; the detection piece is arranged on the body in an openable and closable manner; the detection parts are arranged on the detection piece and are arranged towards the installation part, each detection part comprises a photosensitive detection circuit, and the photosensitive detection circuits are suitable for feeding back corresponding test results according to the light emitting condition of the piece to be tested.

The utility model provides a test fixture includes body and test piece and a plurality of detection portion, wherein, is provided with the installation department on the body, and a plurality of detection portion installations set up on the test piece to every detection portion all includes photosensitive detection circuit.

Specifically, through setting up the installation department on the body, the examination piece that awaits measuring just can install on the installation department, has realized the examination piece fixed mounting that awaits measuring, through installing the detection piece that can open and shut on the body, has realized stopping to treat when detecting that the piece is opened and has detected, treats when detecting that the piece closes and detects. Simultaneously, a plurality of detection portions have been set up on the test piece, every detection portion all includes photosensitive detection circuit, and every detection portion sets up towards the installation department installation, thus, through treating the test piece when detecting the piece closure, realized whether to await measuring the test piece through photosensitive detection circuit detection and luminous, and then can feed back the test result that corresponds according to the luminous condition of waiting to test the piece, thereby whether the lamp pearl of the test piece that realizes awaiting measuring is unusual can be fast accurate the judgement, the efficiency of software testing of light source lamp plate has been improved effectively.

Additionally, the utility model provides a test fixture among the above-mentioned technical scheme can also have following additional technical characteristics:

in the above technical solution, the photosensitive detection circuit includes: the photoresistor is connected between the positive bus and the negative bus in series.

In this technical scheme, through set up the photo resistance in photosensitive detection circuit, the photo resistance is established ties between positive generating line and negative bus, it can change the resistance to have realized the photo resistance under the illumination, and then whether can judge through the resistance change of photo resistance that the piece that awaits measuring shines, thereby whether the lamp pearl of confirming the piece that awaits measuring is unusual, set up the photo resistance in photosensitive detection circuit, moreover, the steam generator is simple in structure, and the steam generator is easy to operate, can confirm the lamp pearl of the piece that awaits measuring fast and give out light to the bad condition, and then improve efficiency of software testing.

In any of the above technical solutions, further, the photosensitive detection circuit further includes: and the resistive element is connected with the photoresistor in series.

In the technical scheme, the resistance element is arranged in the photosensitive detection circuit and is used in series with the photosensitive resistor, so that the current is adjusted through the resistance element, the stability of the current in the circuit is effectively guaranteed, meanwhile, the size of the resistance element is adjusted according to actual needs to control the size of the current in the circuit, the operation is simple, the realization is easy, and the controllability of the current of the circuit is ensured.

In any of the above technical solutions, further, the photosensitive detection circuit further includes: and the collector electrode of the triode is connected between the photoresistor and the resistive element, the emitter electrode of the triode is connected to the positive bus, and the base electrode of the triode is connected to the negative bus.

In this technical scheme, be connected to between photo resistance and the resistive element through the collecting electrode with the triode, and the projecting pole of triode is connected to positive bus, the base of triode is connected to the negative bus, thus, when photo resistance has illumination, photo resistance diminishes, the base and the projecting pole of triode are stopped this moment, when photo resistance does not have illumination, the photo resistance grow, the base and the projecting pole of triode switch on this moment, through set up the triode in photosensitive circuit, this triode can switch on-state or cut-off state according to photo resistance's resistance, consequently can judge according to the state of triode whether test piece is luminous, thereby whether the lamp pearl of confirming to treat test piece is unusual, efficient light test has been realized.

In any of the above technical solutions, further, the photosensitive detection circuit further includes: and the light-emitting diode is connected between the positive bus and the emitter of the triode in series, and is conducted in a single direction from the positive bus to the emitter of the triode.

In this technical scheme, emitting diode (LED), be one kind with the electric energy conversion to the semiconductor device of visible light, through with emitting diode series connection between positive bus and triode, consequently when the base of triode and projecting pole switch on, emitting diode can give out light the warning, when the base of triode and projecting pole cut off, emitting diode does not give out light, consequently whether luminous according to emitting diode, whether can the audio-visual judgement treat that whether there is the lamp pearl of luminous anomaly on the test piece, and the fault point is fixed a position fast, thereby realized the luminous plate to the high-efficient accurate test of luminous efficiency.

In any of the above technical solutions, further, the photosensitive detection circuits are connected in parallel.

In this technical scheme, through with parallel connection between a plurality of photosensitive detection circuit, realized that detection achievement does not influence each other between every photosensitive detection circuit to every photosensitive detection circuit's voltage is the same, can supply power in unison, need not independent adjustment voltage, simple structure, convenient operation.

In any of the above technical solutions, further, the detecting member further includes: the photoelectric detection device comprises a photoelectric board, a photosensitive detection circuit and a photosensitive resistor, wherein the photosensitive detection circuit is arranged on the photoelectric board, through holes which correspond to the detection parts one to one are formed in the photoelectric board, and the photosensitive resistor and the through holes are arranged oppositely.

In this technical scheme, through set up the bakelite board on detecting the piece, be provided with the through-hole on the bakelite board, install photosensitive detection circuit on the bakelite board again, and each photosensitive detection circuit and through-hole one-to-one, because the through-hole on the bakelite board is the one-to-one with the lamp pearl of waiting to test the piece, thus, each photosensitive detection circuit is exactly the one-to-one with the lamp pearl of waiting to test the piece, examine time measuring to the test piece that awaits measuring, can be according to the test result that the luminous condition feedback of waiting to test the piece corresponds, thereby realize making quick accurate judgement to the lamp pearl of waiting to test the piece whether unusual.

In any of the above technical solutions, further, the method further includes: the light filter plate is arranged on one side, far away from the body, of the detection piece and covers the photosensitive detection circuit, and the light filter plate is used for filtering out light rays emitted by at least part of the light emitting diodes.

In this technical scheme, the filter plate is installed on detecting the piece, specifically covers on photosensitive detection circuit to the setting is in the one side of keeping away from the body, through covering the filter plate on photosensitive detection circuit, has realized that the light that emitting diode sent is filtered a part by the filter plate, and then avoids people's eye direct viewing high brightness's emitting diode, can prevent the injury that long-time test led to the fact of people's eye.

In any of the above technical solutions, further, the method further includes: the first power supply part is arranged on the body and is configured to supply power to the to-be-tested part.

In this technical scheme, through setting up first power supply spare on the body, for the awaiting measuring piece power supply, realized the steady power supply of awaiting measuring piece power, whether the lamp pearl for further detecting awaiting measuring piece provides the power guarantee unusually.

In any of the above technical solutions, further, the method further includes: and the second power supply part is arranged on the detection part and comprises a positive bus and a negative bus, and the second power supply part is configured to supply power to the photosensitive detection circuit.

In this technical scheme, the second power supply spare includes positive bus and negative bus, through setting up the second power supply spare on the detection piece, has realized the purpose that the second power supply spare supplies power for the detection piece, and then provides the power for photosensitive detection circuit to provide stable power guarantee for detecting.

The utility model provides a pair of test fixture, through set up a plurality of photosensitive detection circuit on the test piece, and every photosensitive detection circuit is corresponding to every lamp pearl of waiting to test the piece, when the test piece is in the closure state, it detects to treat the test piece, it can short-term test to have realized, and the test method principle is simple, the actual application effect is good, the injury that causes has been avoided direct watching of people's naked eye, the manufacturing efficiency of mill has been promoted, bad output has been reduced, the commonality is wide, but big whole series of popularization in batches.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural diagram of a test fixture according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a photosensitive detection circuit according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

100 testing tools and 200 to-be-tested pieces;

110 body, 120 detection piece, 130 detection part, 140 filter plate, 150 first power supply piece, 160 second power supply piece, 170 test probe;

102 an installation part;

202 bakelite board;

300 photosensitive detection circuit, 310 photosensitive resistor, 320 resistive element, 330 triode, 340 LED;

610 positive bus, 620 negative bus.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A test fixture 100 according to some embodiments of the present invention is described below with reference to fig. 1 and 2.

Example one

Fig. 1 shows a schematic structural diagram of a test fixture 100 according to an embodiment of the present invention, fig. 2 shows a schematic structural diagram of a photosensitive detection circuit 300 according to an embodiment of the present invention, specifically, as shown in fig. 1 and fig. 2, in an embodiment of the present invention, a test fixture 100 is provided, including:

the device comprises a body 110, a detection piece 120 and a plurality of detection parts 130, wherein the body 110 is provided with a mounting part 102, and the mounting part 102 is used for mounting a piece to be tested 200; the detecting member 120 is openably and closably disposed on the body 110; in addition, the detecting portions 130 are provided on the detecting member 120, each detecting portion 130 is provided toward the mounting portion 102, and each detecting portion 130 includes a photosensitive detecting circuit 300, and the photosensitive detecting circuit 300 is adapted to feed back a corresponding test result according to the light emission condition of the member to be tested 200.

The embodiment of the utility model provides an in, specifically, through setting up installation department 102 on body 110, the examination of awaiting measuring 200 just can be installed on installation department 102, has realized the examination of awaiting measuring 200 fixed mounting, through installing the examination piece 120 can open and shut on body 110, has realized stopping to treat when examination piece 120 is opened and has detected examination piece 200, treats examination piece 200 and detects when examination piece 120 closes. Meanwhile, a plurality of detection parts 130 are arranged on the detection piece 120, each detection part 130 comprises a photosensitive detection circuit 300, and each detection part 130 is arranged towards the installation part 102 in an installation mode, thus, when the detection piece 200 is detected through the closing of the detection piece 120, whether the detection piece 200 to be detected emits light through the photosensitive detection circuit 300 is realized, and then the corresponding test result can be fed back according to the light emitting condition of the piece 200 to be detected, so that the quick and accurate judgment on the piece 200 to be detected is realized, the test method is simple in principle, the actual application effect is good, the damage caused by direct observation of naked eyes is avoided, the factory manufacturing efficiency is improved, the bad output is reduced, the universality is wide, and the mass full-series popularization can be realized.

Example two

Fig. 1 shows a schematic structural diagram of a test fixture 100 according to an embodiment of the present invention, fig. 2 shows a schematic structural diagram of a photosensitive detection circuit 300 according to an embodiment of the present invention, specifically, as shown in fig. 1 and fig. 2, an embodiment of the present invention provides a test fixture 100, including:

the body 110, the detection piece 120 and the plurality of detection parts 130, each detection part 130 comprises a photosensitive detection circuit 300, the to-be-detected piece 200 can be installed on the installation part 102 by arranging the installation part 102 on the body 110, the to-be-detected piece 200 is fixedly installed, the detection piece 120 can be opened and closed and the to-be-detected piece 200 is installed on the body 110, the detection of the to-be-detected piece 200 when the detection piece 120 is opened is stopped, and the detection of the to-be-detected piece 200 when the detection piece 120 is closed is realized. Meanwhile, a plurality of detection parts 130 are arranged on the detection piece 120, each detection part 130 comprises a photosensitive detection circuit 300, and each detection part 130 is arranged towards the installation part 102 in an installation mode, thus, when the detection piece 200 is detected through the closing of the detection piece 120, whether the detection piece 200 to be detected emits light through the photosensitive detection circuit 300 is realized, and then the corresponding test result can be fed back according to the light emitting condition of the piece 200 to be detected, so that the quick and accurate judgment on the piece 200 to be detected is realized, the test method is simple in principle, the actual application effect is good, the damage caused by direct observation of naked eyes is avoided, the factory manufacturing efficiency is improved, the bad output is reduced, the universality is wide, and the mass full-series popularization can be realized.

The photosensitive detection circuit 300 includes a photosensitive resistor 310, a resistive element 320, a transistor 330, and a light emitting diode 340, and specifically, the photosensitive resistor 310 is connected in series between a positive bus 610 and a negative bus 620.

In this embodiment, through set up photo resistance 310 in photosensitive detection circuit 300, photo resistance 310 is established ties between positive generating line 610 and negative generating line 620, it can change the resistance to have realized photo resistance 310 under the illumination, and then can judge through photo resistance 310's resistance change whether waiting to test piece 200 is luminous, thereby whether the lamp pearl of confirming waiting to test piece 200 is unusual, set up photo resistance 310 in photosensitive detection circuit 300, moreover, the steam generator is simple in structure, and is easy to operate, can confirm the lamp pearl of waiting to test piece 200 luminous bad condition fast, upgrade the LED pilot lamp warning by original people's eye inspection with the detection grade, and the detection efficiency is improved.

Further, the photosensitive detection circuit 300 further includes a resistive element 320, and the resistive element 320 is connected in series with the photosensitive resistor 310.

In this embodiment, the resistive element 320 is disposed in the photosensitive detection circuit 300 and connected in series with the photosensitive resistor 310 for use, so that the current is adjusted through the resistive element 320, the stability of the current in the circuit is effectively guaranteed, and meanwhile, the magnitude of the current in the circuit is controlled by adjusting the magnitude of the resistive element 320 according to actual needs, specifically, the resistance value of the resistive element 320 may be 5.2 kilohms and adjusted between 3.3 kilohms and 100 kilohms according to actual conditions, and the method is simple in operation, easy to implement, and capable of guaranteeing the controllability of the current in the circuit.

Further, the photodetection circuit 300 further includes a transistor 330, a collector of the transistor 330 is connected between the photoresistor 310 and the resistive element 320, an emitter of the transistor 330 is connected to the positive bus 610, and a base of the transistor 330 is connected to the negative bus 620.

In this embodiment, by connecting the collector of the transistor 330 to the space between the photo resistor 310 and the resistive element 320, and connecting the emitter of the transistor 330 to the positive bus 610, the base of the transistor 330 is connected to the negative bus 620, so that when the photo resistor 310 is illuminated, the photo resistor 310 is decreased, and at this time, the base and the emitter of the transistor 330 are cut off, and when the photo resistor 310 is not illuminated, the photo resistor 310 is increased, and at this time, the base and the emitter of the transistor 330 are turned on, specifically, the transistor 330 may be of NPN type or PNP type, wherein, as shown in fig. 2, the base is B, the collector is C, and the emitter is E, and by providing the transistor 330 in the photo detection circuit 300, the transistor 330 can switch between on state and off state according to the resistance of the photo resistor 310, so that whether the test object 200 emits light can be determined according to the state of the transistor 330, whether the lamp bead of the piece to be tested 200 is abnormal or not is determined, and efficient light testing is achieved.

Further, the photodetection circuit 300 further includes a light emitting diode 340, the light emitting diode 340 is connected in series between the positive bus 610 and the emitter of the transistor 330, and the light emitting diode 340 is conducted in a single direction from the positive bus 610 to the emitter of the transistor 330.

In this embodiment, the light Emitting diode 340, also referred to as led (light Emitting diode), is a semiconductor device that converts electrical energy into visible light, and the light Emitting diode 340 is connected in series between the positive bus 610 and the triode 330, so that when the base B and the emitter E of the triode 330 are turned on, the light Emitting diode 340 can emit light to warn, and when the base B and the emitter E of the triode 330 are turned off, the light Emitting diode 340 does not emit light, so that whether a bead with abnormal light emission exists on the to-be-tested piece 200 can be visually determined according to whether the light Emitting diode 340 emits light, and a fault point can be quickly located, thereby realizing efficient and accurate testing of the light Emitting panel. Because the light emitting diode 340 emits light brightly, the light or the darkness of the warning lamp can be distinguished obviously, and therefore whether the lamp bead of the test piece 200 to be tested is bad or not can be determined easily.

Further, a plurality of photosensitive detection circuits 300 are connected in parallel.

In this embodiment, through carrying out parallel connection between a plurality of photosensitive detection circuit 300, realized that detection achievement does not influence each other between every photosensitive detection circuit 300, even a certain branch road goes wrong, can not influence the detection achievement of other branch roads to every photosensitive detection circuit 300's voltage is the same, can supply power in unison, need not independent adjustment voltage, simple structure, convenient operation.

EXAMPLE III

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a testing tool 100, including a body 110, a detecting piece 120 and a plurality of detecting portions 130, wherein the detecting piece 120 further includes a bakelite plate 202, a photosensitive detection circuit 300 is disposed on the bakelite plate 202, through holes corresponding to the detecting portions 130 one by one are disposed on the bakelite plate 202, and a photosensitive resistor 310 is disposed opposite to the through holes.

In this embodiment, the bakelite board 202 is used for bearing the photosensitive detection circuit 300, and is the substrate of the photosensitive detection circuit 300, through setting up the bakelite board 202 on the detection piece 120, be provided with the through-hole on the bakelite board 202, install the photosensitive detection circuit 300 on the bakelite board 202 again, and each photosensitive detection circuit 300 and through-hole one-to-one, because the through-hole on the bakelite board 202 is the one-to-one with the lamp pearl of the piece 200 of waiting to test, thus, each photosensitive detection circuit 300 is exactly the one-to-one with the lamp pearl of the piece 200 of waiting to test, when examining the piece 200 of waiting to test, the photo resistance 310 in the photosensitive detection circuit 300 can feed back the corresponding test result according to the luminous situation of the piece 200 of waiting to test, thereby realize whether the lamp pearl of the piece 200 of waiting to.

Further, the test fixture 100 further includes a filter 140, the filter 140 is disposed on a side of the detecting element 120 away from the body 110 and covers the photosensitive detection circuit 300, and the filter 140 is used for filtering out at least a portion of light emitted by the light emitting diode 340.

In this embodiment, the filter plate 140 is installed on the detection piece 120, specifically, cover on photosensitive detection circuit 300, and set up in the one side of keeping away from body 110, the filter plate 140 can be ground glass, translucent glass, synthetic resin etc., also can be the translucent board of acrylic of tawny, can select the filter plate 140 that is fit for the material according to actual conditions, through covering filter plate 140 on photosensitive detection circuit 300, it filters partly to have realized that the light that emitting diode 340 sent is filtered by filter plate 140, prevent that the luminous direct contact of LED lamp pearl from reaching people's eye, and then avoid people's eye direct viewing emitting diode 340 of high luminance, can prevent the injury that long-time test caused to people's eye, reduce bad output, thereby increase substantially the detection volume, carry out mass production and detect.

The photosensitive detection circuit 300 comprises a photosensitive resistor 310, a resistive element 320, a transistor 330 and a light emitting diode 340, and specifically, the photosensitive resistor 310 is connected in series between a positive bus 610 and a negative bus 620.

In this embodiment, the light Emitting diode 340, also called as led (light Emitting diode), is a semiconductor device that converts electrical energy into visible light, and the light Emitting diode 340 is connected in series between the positive bus 610 and the triode 330, so that when the base B and the emitter E of the triode 330 are turned on, the light Emitting diode 340 can emit light to warn, and when the base B and the emitter E of the triode 330 are turned off, the light Emitting diode 340 does not emit light, so that whether a bead with abnormal light emission exists on the to-be-tested device 200 can be intuitively determined according to whether the light Emitting diode 340 emits light, and a fault point can be quickly located, thereby realizing efficient and accurate testing of the light Emitting panel. Because the light emitting diode 340 emits light brightly, the light or the darkness of the warning lamp can be distinguished obviously, and therefore whether the lamp bead of the test piece 200 to be tested is bad or not can be determined easily.

Further, the test fixture 100 further includes a first power supply part 150 disposed on the body 110, wherein the first power supply part 150 is configured to supply power to the test object 200 to be tested.

In this embodiment, through setting up first power supply piece 150 on body 110, for waiting to test the piece 200 power supply, realized waiting to test the stable power supply of piece 200 power, specifically, can set up the voltage of first power supply piece 150 between 3 volts to 300 volts, provide the power guarantee for further detecting that the lamp pearl of waiting to test piece 200 is unusual.

Further, the test fixture 100 further includes a second power supply 160 disposed on the detection part 120, the second power supply 160 includes a positive bus 610 and a negative bus 620, and the second power supply 160 is configured to supply power to the photosensitive detection circuit 300.

In this embodiment, the second power supply 160 includes the positive bus 610 and the negative bus 620, specifically, the voltage of the second power supply 160 can be determined according to the voltage of the LED lamp bead, the voltage of the second power supply 160 can be set between 3 volts and 9 volts, and the purpose that the second power supply 160 supplies power to the detection piece 120 is realized by setting the second power supply 160 on the detection piece 120, so as to provide power for the photosensitive detection circuit 300, thereby providing a stable power supply guarantee for detection.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1 and 2, a specific embodiment of the present invention provides a testing tool 100, which includes a testing platform, a bakelite board 202, a photosensitive detection circuit 300, a translucent acrylic board, a piece to be tested 200, a testing probe 170 (optical fiber, etc.), and a dc power supply. Specifically, the testing platform is equivalent to the body 110 and is used for placing the to-be-tested piece 200, the semitransparent acrylic plate is equivalent to the filter plate 140, wherein a circular hole is formed vertically above the lamp bead of the to-be-tested piece 200, and the function of the testing platform is to place the photoresistor 310 in the position for detecting the brightness of each lamp bead and triggering the photosensitive detection circuit 300 to work; all there is such photosensitive detection circuit 300 above each lamp pearl, and a plurality of photosensitive detection circuit 300 are parallelly connected, and translucent inferior gram force board, the effect is protection people's eye, prevents that LED lamp pearl luminous direct contact from reaching people's eye, and the inferior gram force translucent board through this tawny can effectively fall and avoid the injury to people's eye.

When the piece to be tested 200 is placed in the test platform, the test probe 170 is pressed downwards, the voltage test connected to the piece to be tested 200 is lightened, and all lamp beads are lightened under normal conditions; when a certain lamp bead is not lighted abnormally, the photoresistor 310 above the lamp bead is vertically used for sensing that the resistance value is changed greatly, so that the photosensitive detection circuit 300 works, the LED indicating lamp in the circuit is lighted, and the LED indicating lamp above the other normally lighted lamp beads is dark, so that the lamp bead in the piece to be tested 200 can be found to be bad at a glance.

The utility model discloses the test method principle is simple, and the actual application effect is good, has avoided people's naked eye direct viewing to cause the injury, has promoted the mill and has made efficiency, has reduced bad output, and the commonality is wide, but big full series of popularization in batches.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a test fixture which characterized in that includes:

the testing device comprises a body, a testing device and a testing device, wherein the body is provided with an installation part which is suitable for installing a piece to be tested;

the detection piece is arranged on the body in an openable and closable manner;

the detection parts are arranged on the detection piece and face the installation part, each detection part comprises a photosensitive detection circuit, and the photosensitive detection circuit is suitable for feeding back corresponding test results according to the light emitting condition of the piece to be tested.

2. The test tool of claim 1, wherein the photosensitive detection circuit comprises:

the photoresistor is connected between the positive bus and the negative bus in series.

3. The test tool of claim 2, wherein the photosensitive detection circuit further comprises:

a resistive element in series with the photoresistor.

4. The test tool of claim 3, wherein the photosensitive detection circuit further comprises:

the collector electrode of the triode is connected between the photosensitive resistor and the resistive element, the emitter electrode of the triode is connected to the positive bus, and the base electrode of the triode is connected to the negative bus.

5. The test tool of claim 4, wherein the photosensitive detection circuit further comprises:

the light emitting diode is connected between the positive bus and the emitter of the triode in series, and the light emitting diode is conducted in a single direction from the positive bus to the emitter of the triode.

6. The test tool according to any one of claims 1 to 5, wherein a plurality of the photosensitive detection circuits are connected in parallel.

7. The test tool according to claim 4 or 5, wherein the detection piece further comprises:

the photoelectric detection device comprises a photoelectric board, a photosensitive detection circuit, a detection part and a photosensitive resistor, wherein the photosensitive detection circuit is arranged on the photoelectric board, the photoelectric board is provided with through holes corresponding to the detection parts one to one, and the photosensitive resistor is opposite to the through holes.

8. The test tool of claim 5, further comprising:

the light filter plate is arranged on one side, far away from the body, of the detection piece and covers the photosensitive detection circuit, and the light filter plate is used for filtering out at least part of light rays emitted by the light emitting diodes.

9. The test tool according to any one of claims 1 to 5, further comprising:

the first power supply part is arranged on the body and is configured to supply power to the to-be-tested part.

10. The test tool according to any one of claims 2 to 5, further comprising:

a second power supply disposed at the detection member, the second power supply including the positive bus and the negative bus, the second power supply configured to supply power to the photosensitive detection circuit.