CN215294784U

CN215294784U - Multi-color temperature LED test lamp box

Info

Publication number: CN215294784U
Application number: CN202120612533.0U
Authority: CN
Inventors: 鲁周波
Original assignee: Suzhou Linke Lighting Science & Technology Co ltd
Current assignee: Suzhou Linke Lighting Science & Technology Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-24
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses a polychrome temperature LED test lamp house, including box and lamp plate, be provided with the LED lamp pearl of two kinds at least different colour temperatures on the lamp plate, the LED lamp pearl of every colour temperature equipartition respectively in the box and corresponding with the front of box, the LED lamp pearl of every colour temperature is respectively by solitary first mains operated. The utility model discloses can be according to the demand of test nimble, switch the light of different colour temperatures fast, richened the function of lamp house, easy operation, convenience have improved efficiency, have saved time and resource, have reduced manufacturing cost, can satisfy the increasingly high test demand of display screen product, and the range of application is wide.

Description

Multi-color temperature LED test lamp box

Technical Field

The utility model relates to a test lamp box especially relates to a polychrome temperature LED test lamp box.

Background

With the rapid development of science and technology and economy, the living standard of people is continuously improved, and the roles of products with display screens in national economy production and social life of people are more and more important, especially liquid crystal display screens, and the products are increasingly diversified and popularized. In order to improve the universality and cost performance of a display screen product, the optical characteristics of the display screen need to be detected in the production process of the display screen product, a luminous test lamp box is usually used for replacing a backlight module in the product during detection, the test lamp box is also called a backlight source, and an LED source is generally adopted as a luminous source in the test lamp box.

At present, with the increasing demand of the market for large-size display screen products, such as large-size liquid crystal television screens, the requirements for the precision and the like of the display screen products are also increasing, the test requirements for the display screen products are also continuously increased, the test lamp box is required to have higher luminance value, higher display uniformity and the like, and a plurality of light sources with different color temperatures are also required to be used. However, the existing test lamp boxes are all light sources with single color temperature, are single in function, and are matched with display screen products respectively by adopting a plurality of test lamp boxes with different color temperatures in the test of the display screen products to carry out corresponding tests independently, so that the operation is inconvenient, the consumed time is long, the efficiency is low, higher and higher test requirements cannot be met, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polychrome temperature LED test lamp house can solve at least one among the above-mentioned technical problem, the technical scheme of the utility model as follows:

the utility model provides a polychrome temperature LED test lamp case, includes box and lamp plate, is provided with the LED lamp pearl of two kinds of at least different colour temperatures on the lamp plate, and the LED lamp pearl of every colour temperature equipartition is corresponding in the box and with the front of box respectively, and the LED lamp pearl of every colour temperature is respectively by solitary first power supply.

In some embodiments, the LED lamp beads with the same color temperature form a plurality of uniformly distributed and parallel lamp strips.

In some embodiments, the cathodes of all light bars are connected.

In some embodiments, the first power source is a constant current power source or a constant current programmed power source.

In some embodiments, the lamp panel is provided with first reflector layer all around respectively, and whole LED lamp pearl is located the interval that first reflector layer encloses.

In some embodiments, the front surface of the box body is provided with a light-homogenizing panel, and the lower surface of the light-homogenizing panel is provided with a light-transmitting support panel.

In some embodiments, the upper surface of the light-equalizing panel is provided with a light-transmitting protective panel.

In some embodiments, a first cushion block matched with the lamp panel is arranged in the box body.

In some embodiments, one side of the box body is provided with a suction fan and the other side is provided with an exhaust fan, the suction fan is used for sucking air into the box body, and the exhaust fan is used for exhausting air out of the box body.

In some embodiments, two sides in the box body are respectively provided with a first groove body through a first partition plate, the suction fan is positioned in one of the first groove bodies, and the exhaust fan is positioned in the other first groove body.

The utility model has the advantages that: the LED lamp beads of different colour temperatures on the lamp plate can send the light of different colour temperatures, and the LED lamp bead of every colour temperature is respectively by solitary first power supply power to can be nimble, switch the light of different colour temperatures fast according to the demand of test, enriched the function of lamp house, easy operation, convenience have improved efficiency, have saved time and resource, have reduced manufacturing cost, can satisfy the increasingly high test demand of display screen product, and the range of application is wide.

In addition, in the technical solutions of the present invention, the technical solutions can be implemented by adopting conventional means in the art, which are not specifically described.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a multi-color-temperature LED testing lamp box according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a multi-color temperature LED testing lamp box according to an embodiment of the present invention.

Fig. 3 is a partial structural cross-sectional view of a multi-color temperature LED testing lamp box according to an embodiment of the present invention.

Fig. 4 is the utility model discloses an embodiment's the structural schematic diagram of the lamp plate that contains the LED lamp pearl of three kinds of different colour temperatures.

The number in the drawing indicates that the box 1, first slot 101, first constant head tank 102, the board 11 of samming, printing opacity support panel 12, printing opacity protection panel 13, first cushion 14, first baffle 15, first cell body 16, ventilation gap 17, lamp plate 2, lamp strip 201, LED lamp pearl 21, first reflector layer 22, first power 3, aviation plug 4, suction fan 5, exhaust fan 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of but not limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "both sides", "bottom", "top", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "upper," "lower," "primary," "secondary," and the like are used for descriptive purposes only and may be used for purposes of simplicity in more clearly distinguishing between various components and not to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected to each other inside two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is the utility model discloses an embodiment's polychrome temperature LED test lamp box's structural schematic diagram, fig. 2 is the utility model discloses an embodiment's polychrome temperature LED test lamp box's cross-sectional view, fig. 3 is the utility model discloses an embodiment's polychrome temperature LED test lamp box's local structure cross-sectional view, fig. 4 is the utility model discloses an embodiment's structural schematic diagram of the lamp plate that contains the LED lamp pearl of three kinds of different colour temperatures.

Example (b):

as shown in FIGS. 1-4, schematically show according to the utility model discloses a polychrome temperature LED test lamp box, including box 1 and lamp plate 2, lamp plate 2 passes through the fix with screw usually on the bottom surface in box 1. The lamp panel 2 is provided with LED lamp beads 21 with different color temperatures, the LED lamp beads 21 can be two, three or more, the number of the LED lamp beads 21 is at least two, the number of the LED lamp beads 21 with each color temperature is usually multiple, the LED lamp beads 21 with each color temperature are respectively and uniformly distributed in the box body 1 and correspond to the front of the box body 1, and the LED lamp beads 21 with each color temperature are respectively powered by the independent first power supply 3. Different first power 3 LED lamp pearl 21 of the different colour temperatures of solitary control respectively lights to can be according to the nimble light of switching different colour temperatures of the demand of test, convenient operation, swift, mutually independent, each other noninterference, stability and reliability height.

According to the specific situations such as the specific size of the box 1, the lamp panels 2 in the box 1 may be one, two or more, and the lamp panels 2 may be rectangular, square or other suitable shapes. The length of each power supply line connecting all the panels 2 to the first power supply 3 is the same, since for each power supply line, if the longer the length, the voltage loss is more and more large, in the box body 1, the connection position of the power supply line and the lamp panel 2 is usually far and near, any one of the power supply lines for connecting the lamp panel 2 to the first power supply 3 is set to the same length, i.e. all the supply lines are set to the longest length, which ensures that the voltage loss over each supply line is the same, and thus the input voltage ultimately distributed to each lamp panel 2 is substantially the same, therefore, the brightness of the LED lamp beads 21 on each lamp panel 2 is basically the same, so that the overall brightness or luminance is more uniform, the visual effect and the test accuracy of the lamp box are improved, and the LED lamp bead repairing method can be applied to links requiring higher repairing of liquid crystal light spots.

LED lamp pearl 21 of every kind of colour temperature is a plurality of usually, LED lamp pearl 21 of the same kind of colour temperature forms the lamp strip 201 of equipartition, the lamp strip 201 that the equipartition has two at least different colour temperatures on the lamp plate 2 promptly, the lamp strip 201 of every kind of colour temperature can be one of parallel arrangement, two or a plurality of, contain the LED lamp pearl 21 of a plurality of the same kind of colour temperatures on every lamp strip 201 usually, all lamp strips 201 parallel connection of the same kind of colour temperature and be connected with solitary first power 3, thereby can guarantee to flow through the electric current unanimity of lamp pearl on every lamp strip 201, make the luminous degree of consistency of lamp strip 201 of the same kind of colour temperature higher. Further, the cathodes of all the light bars 201 are connected, so that the cathodes of all the first power supplies 3 are connected in parallel, connection, arrangement and the like of the light bars 201 with various color temperatures are facilitated, and the structure is more stable and reliable.

As shown in fig. 1, lamp strips 201 with two different color temperatures are arranged on a lamp panel 2, the lamp strips 201 with the two different color temperatures are separately controlled by two first power supplies 3, the lamp strips 201 with each color temperature have six parallel arrangements, the six lamp strips 201 with the same color temperature are connected in parallel and connected with the first power supplies 3, cathodes of all the lamp strips 201 are connected, each lamp strip 201 is provided with a plurality of LED lamp beads 21 with the same color temperature, the two lamp strips 201 with different color temperatures are a group, and six groups are provided. As shown in fig. 4, the lamp panel 2 is provided with three lamp strips 201 with different color temperatures, the lamp strips 201 with three different color temperatures are separately controlled by two first power supplies 3, the lamp strips 201 with each color temperature have six parallel arrangements, the six lamp strips 201 with the same color temperature are connected in parallel and connected with the first power supplies 3, the cathodes of all the lamp strips 201 are connected, each lamp strip 201 is provided with a plurality of LED lamp beads 21 with the same color temperature, the three lamp strips 201 with different color temperatures are a group, and six groups are provided.

The first power supply 3 can adopt a constant-current power supply or a constant-current program-controlled power supply, preferably a high-power constant-current power supply or a high-power constant-current program-controlled power supply, and has higher stability and reliability.

Because the lamp house lacks the replenishment of light all around, thereby the whole luminance all around of lamp house can be than middle low, can influence the holistic degree of consistency of lamp house like this, lamp plate 2 can also be provided with first reflector layer 22 respectively all around, first reflector layer 22 can adopt reflection of light paper, reflective membrane or reflection of light coating etc. whole LED lamp pearl 21 is located the interval that first reflector layer 22 encloses, luminance degree of consistency can be finely tuned through reflection of light reinforcing luminance to first reflector layer 22, make the surperficial luminance of lamp house more even. In addition, the surface of lamp plate 2 also can be provided with black light-absorbing layer, and black light-absorbing layer can adopt black printing ink coating etc. and black light-absorbing layer also can finely tune the luminance degree of consistency through the intensity that the extinction reduced light for the surface brightness of lamp house is more even.

The front of box 1 is provided with uniform light panel 11, the lower surface of uniform light panel 11 is provided with printing opacity support panel 12, the upper surface of uniform light panel 11 is provided with printing opacity protection panel 13, uniform light panel 11 and printing opacity support panel 12 link together in proper order from last to down, uniform light panel 11 can make the light that the lamp pearl sent disperse away through diffuse reflection or scattering uniformly, reach good bright effect, printing opacity support panel 12 can guarantee that light passes through well, can play protection and supporting role to uniform light panel 11 again, printing opacity protection panel 13 not only can protect uniform light panel 11 better, and also be convenient for better support the product that will test, thereby the stability and the reliability of equipment have been improved, thereby the test effect and the life of equipment have been improved. The front of the box body 1 is further provided with a first positioning groove 102 connected with the light-transmitting protection panel 13, the light-equalizing panel 11 and the light-transmitting support panel 12, the light-transmitting protection panel 13, the light-equalizing panel 11 and the light-transmitting support panel 12 are positioned through the first positioning groove 102 and are fixedly connected with the box body 1, the connection is firmer, and the stability is better.

Be provided with in the box 1 with the first cushion 14 of 2 matched with of lamp plate, first cushion 14 is fixed on the bottom surface in the box 1, four end angles of 2 bottoms of lamp plate are provided with first cushion 14 respectively usually, the installation of the lamp plate 2 of not only being convenient for, the printing opacity support panel 12's of lamp plate 2 rather than top distance has been reduced, increase lamp house surperficial luminance all around, improve the surperficial luminance degree of consistency of lamp house, and form certain clearance between the bottom surface in lamp plate 2 and the box 1, the heat dissipation of the lamp plate 2 of being convenient for, the collection of power supply line etc.

One side of box 1 is provided with suction fan 5 and the opposite side sets up exhaust fan 6, and suction fan 5 is used for induced drafting toward box 1 is interior, and exhaust fan 6 is used for exhausting outside box 1, according to specific conditions such as the concrete size of a dimension of box 1, and suction fan 5 and exhaust fan 6 are usually by solitary power control, and suction fan 5 and exhaust fan 6 can be one, two or a plurality of. In the use, lamp plate 2 and the lamp pearl during operation in the box 1 produce the heat, through the hot-air in the exhaust fan 6 discharge box 1, simultaneously in the suction fan 5 inhales the box 1 with the relatively colder air in outside, thereby form the inside rather than outside air cycle flow of box 1, in time, the inside hot-air of box 1 of discharging effectively, cooling radiating effect is good, prevent to cause the box 1 interior high temperature because long-time the use, the life of relevant part in the box 1 has been improved, thereby reach test effect better, the stability and the reliability of equipment have been improved.

Both sides in the box 1 form first cell body 16 through first baffle 15 respectively, aspiration fan 5 is located one of them first cell body 16, exhaust fan 6 is located another first cell body 16, it is more convenient to operate, the structure is compacter, it is safer, more stable, and reliable, and first cell body 16 also can be used to collect the power supply line that lamp plate 2 and first power 3 are connected, it is more convenient to operate, the arrangement of power supply line is clean and tidy, in order, be convenient for install, maintain, thereby make this equipment can test better, the security and the reliability of equipment have been improved.

A ventilation gap 17 is formed between the top of the first partition 15 and the bottom surface of the light-transmitting support panel 12, so that air can circulate under the action of the suction fan 5 and the exhaust fan 6 conveniently, and the cooling and heat-dissipating effects are better.

Be provided with respectively on the inside wall of box 1 with first baffle 15's both ends matched with first slot 101, be convenient for first baffle 15 through two first slots 101 and settle in box 1, it is more convenient to operate, connects more firmly, and stability and reliability are better.

Can also be provided with the reflector layer on the inside wall of box 1 and the one side that first baffle 15 is close to lamp plate 2, lamp plate 2 is located the region that the reflector layer encloses to can reach better bright effect, improve the measuring accuracy and the test effect of equipment. The reflecting layer can be a reflecting film or a reflecting coating and the like, so that the operation is more convenient and the effect is better.

In addition, be provided with on the box 1 with aspiration fan 5 and exhaust fan 6 matched with aviation plug 4, be convenient for corresponding external power source through aviation plug 4 and be connected so that aspiration fan 5 and exhaust fan 6 carry out work, convenient operation, safety, reliability. The outside of box 1 can also be provided with the handle, is convenient for remove this lamp house through the handle, also conveniently hangs this lamp house moreover.

Compared with the prior art, the utility model has the advantages that: the LED lamp beads 21 with different color temperatures on the lamp panel 2 can emit light with different color temperatures, and the LED lamp beads 21 with each color temperature are respectively supplied with power by the independent first power supply 3, thereby being capable of flexibly and rapidly switching the light with different color temperatures according to the test requirements, enriching the function of the lamp box, the length of each power supply line connected with the first power supply 3 by all the lamp panels 2 is the same, ensuring that the voltage loss on each power supply line is the same, ensuring that the brightness of the LED lamp beads 21 on each lamp panel 2 is basically the same, ensuring that the overall brightness or brilliance is more uniform, being applicable to the link of repairing liquid crystal light spots with higher requirements, forming the uniformly-distributed and parallel lamp strips 201 by the LED lamp beads 21 with the same color temperature, ensuring that the current flowing through the lamp beads on each lamp strip 201 is consistent, ensuring that the lamp strips 201 with the same color temperature emit light with higher uniformity, and facilitating the connection of the lamp strips 201 with multiple color temperatures by the connection of the lamp strips 201 with the negative poles of all the lamp strips 201, Arrangement and the like, the first power supply 3 adopts a high-power constant-current power supply or a constant-current program-controlled power supply, the first reflective layer 22 around the lamp panel 2, such as reflective paper, a reflective film, a reflective coating and the like, can enhance brightness through reflection to finely adjust brightness uniformity, so that the surface brightness of the lamp box is more uniform, the light emitted by the lamp bead can be uniformly diffused by the light-equalizing panel 11 on the front surface of the box body 1 through diffuse reflection or scattering, the light-transmitting support panel 12 can ensure that the light can well pass through, and can play a role in protecting and supporting the light-equalizing panel 11, the light-transmitting protection panel 13 can better protect the light-equalizing panel 11, support products to be tested and the like, the heat generated during the work of the lamp panel 2 and the lamp bead in the box body 1 is discharged through the exhaust fan 6, meanwhile, the exhaust fan 5 sucks relatively cold air outside into the box body 1, so that the air inside and outside the box body 1 circularly flows, the hot air inside the box body 1 can be timely and effectively discharged, the cooling and radiating effects are good, the phenomenon that the temperature in the box body 1 is too high due to long-time use is avoided, the operation is simple and convenient, the efficiency is improved, the time and the resources are saved, the production cost is reduced, the stability and the reliability are high, the visual effect and the test accuracy are improved, the service life is long, the increasingly high test requirements of display screen products can be met, and the application range is wide.

The foregoing are only embodiments of the present invention, which are not intended to limit the scope of the present invention, and it should be understood that modifications and substitutions can be made by those skilled in the art without departing from the inventive concept, and all such modifications and substitutions are intended to be included within the scope of the appended claims. In this case all the details may be replaced with equivalent elements, and the materials, shapes and dimensions may be any.

Claims

1. Multi-color temperature LED test lamp box, its characterized in that, including box (1) and lamp plate (2), be provided with LED lamp pearl (21) of two at least different colour temperatures on lamp plate (2), every colour temperature LED lamp pearl (21) respectively the equipartition in box (1) and with the front of box (1) is corresponding, every colour temperature LED lamp pearl (21) are supplied power by solitary first power (3) respectively.

2. The multi-color-temperature LED test lamp box of claim 1, wherein the LED lamp beads (21) of the same color temperature form a plurality of uniformly distributed and parallel lamp strips (201).

3. The LED test light box of claim 2, wherein all the light bars (201) are connected at their negative poles.

4. The multi-color-temperature LED test lamp box according to claim 1, wherein the first power supply (3) is a constant current power supply or a constant current program control power supply.

5. The LED test lamp box with the multiple color temperatures of claim 1, wherein first reflecting layers (22) are respectively arranged on the periphery of the lamp panel (2), and all the LED lamp beads (21) are located in an interval surrounded by the first reflecting layers (22).

6. The multi-color-temperature LED test lamp box according to claim 1, characterized in that a light-equalizing panel (11) is arranged on the front surface of the box body (1), and a light-transmitting support panel (12) is arranged on the lower surface of the light-equalizing panel (11).

7. A multi-color temperature LED test light box according to claim 6, characterized in that the upper surface of the light equalizing panel (11) is provided with a light transmitting protective panel (13).

8. The LED test lamp box with the multiple color temperatures according to claim 1, characterized in that a first cushion block (14) matched with the lamp panel (2) is arranged in the box body (1).

9. The multi-color-temperature LED test lamp box according to any one of claims 1 to 8, characterized in that one side of the box body (1) is provided with a suction fan (5) and the other side is provided with an exhaust fan (6), the suction fan (5) is used for sucking air into the box body (1), and the exhaust fan (6) is used for exhausting air out of the box body (1).

10. The multi-color-temperature LED test lamp box according to claim 9, wherein two sides in the box body (1) are respectively provided with a first groove body (16) through a first partition plate (15), the suction fan (5) is positioned in one of the first groove bodies (16), and the exhaust fan (6) is positioned in the other first groove body (16).