CN209415237U - A kind of blackboard lights - Google Patents
A kind of blackboard lights Download PDFInfo
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- CN209415237U CN209415237U CN201920453762.5U CN201920453762U CN209415237U CN 209415237 U CN209415237 U CN 209415237U CN 201920453762 U CN201920453762 U CN 201920453762U CN 209415237 U CN209415237 U CN 209415237U
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000003760 hair shine Effects 0.000 claims abstract description 3
- 238000004020 luminiscence type Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 241001465382 Physalis alkekengi Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to headlamp technical fields, provide a kind of blackboard lights, including shell；Light source module group is set in the shell for shining comprising substrate and the multi-group light-emitting unit being set on the substrate；Driving power component is set to the shell inside/outside, is used to provide the described electric power required for light source module group shines；Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising spreadlight lens and the aluminum grill unit being set on the outside of the spreadlight lens.The spreadlight lens is the transparent PC multimaterial component for sealing and protecting the light source module group; the light source module group emits beam; light is after the refraction of the spreadlight lens of the anti-dazzle optical mode group; it is formed and the light source module group is in 10 degree of emergent ray; it is blocked again through the aluminum grill unit; it is possible to prevente effectively from direct line direct irradiation goes out blackboard, dazzle caused by direct line is effectively prevented, improved the comfort level of teacher's upper class hour.
Description
Technical field
The utility model relates to field of illumination lamp technology more particularly to a kind of blackboard lights.
Background technique
Blackboard lights are installed in classroom, provide normal lighting.Existing blackboard lights, when people are sitting in indoor holding head-up
When (sight is horizontal), there are certain dazzle angles for blackboard lights, as shown in Figure 1, in which: θ is lamps and lanterns and appraisal of glare viewpoint (i.e. people
Eyes) line and lamps and lanterns drop wire angle, hs is lamps and lanterns to the vertical range for evaluating viewpoint (eyes), and a is lamps and lanterns to commenting
The horizontal distance of valence viewpoint (eyes), tg θ=a/hs.Dazzle angle is the main reason for causing direct glare.
The structure of the blackboard lights overwhelming majority of present school's application is all the band built-in T8 fluorescent tube of arc reflection cover stent
Form, structure is as shown in Fig. 2, include lamp housing, fluorescent tube and reflector, this lamps and lanterns has the following problems: (1) blackboard lights are mounted on black
Above plate, as shown in figure 3, the light that such structure reflective cover is reflected largely is irradiated to the top of blackboard and the wall of top
Face, and really need the blackboard region illuminated then without enough light, extremely so as to cause the illumination on blackboard lower part and top
Unevenly；(2) blackboard lights are the crown front upper places of the teacher of installation, and it is old that the blackboard lights of such structure have direct line that can enter
The eyes of teacher be easy to cause the visual fatigue of teacher, impart knowledge to students in such circumstances for a long time, will cause biggish injury to eyesight；(3)
Universal with classroom multimedia equipment, the mounting heights of blackboard lights is by must be higher than the mounting height of projection device, in this way
Blackboard lights are irradiated to the light in the effective using face of blackboard will be less and more uneven；(4) light source that blackboard lights use for
T8 fluorescent tube (can be conventional fluorescent fluorescent tube, be also possible to LED fluorescent lamp tube), then can be because of using LED T8 fluorescent tube
Heat dissipation area is limited, and in the case where meeting blackboard 500lx illumination requirement, the service life of fluorescent tube is unable to get effective guarantee.
Utility model content
The technical issues of the utility model is solved is to provide a kind of blackboard that can eliminate direct line in dazzle angle
Lamp.
The utility model provides a kind of blackboard lights characterized by comprising
Shell；
Light source module group is set in the shell for shining comprising substrate and the multiple groups being set on the substrate
Luminescence unit；
Driving power component is set to the shell inside/outside, is used to provide the described electricity required for light source module group shines
Power；
Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising partially
Optical lens and the aluminum grill unit being set on the outside of the spreadlight lens.
Further, the spreadlight lens includes body part, is set to the body part top surface and the multi-group light-emitting
It the corresponding multiple polarisation portions of unit and is respectively arranged at multi-group light-emitting unit cladding at the top of multiple polarisation portions
Multiple receiving portions.
Further, the receiving portion includes the first vertical incidence surface, the second incidence surface and enters with described first
The height of the third incident curved surfaces that smooth surface is connected with the bottom of second incidence surface, first incidence surface is greater than described second
Incidence surface.
Further, luminescence unit described in multiple groups is arranged along the length direction of the substrate respectively, the adjacent polarisation
Cavity is formed between lens and the substrate.
Further, the aluminum grill unit include along the shell length direction be arranged two mainboards,
Every several vertical flase floors being set between described two mainboards and the support plate for being set to two mainboard bottoms.
Further, the two sides of each flase floor is respectively arranged with several jagged fins.
Further, the shell includes the main body of aluminum profile, the lamp cap for being set to the main body both ends and setting
The light source module group and the anti-dazzle optical mode group are fixed in the shell by the cover board on the outside of the lamp cap, the lamp cap.
Further, the top of the main body is provided with several protrusions along its length, the protrusion it is interior
Side is respectively set fluted, and the top surface of the main body is provided with the first mounting groove, the light source module group and institute along its length
Spreadlight lens is stated to be connected by screw with the top of the shell.
Further, the case inside is provided with second with aluminum grill unit cooperation along its length
Mounting groove.
Further, the substrate is to cover copper aluminum substrate, and the multi-group light-emitting unit is LED luminescence unit, described more
Group luminescence unit is soldered on the substrate by SMD technique.
The blackboard lights of the utility model, the spreadlight lens are the transparent PC material portions for sealing and protecting the light source module group
Part, the light source module group emit beam, and light is formed and the light source die after the refraction of the spreadlight lens of the anti-dazzle optical mode group
Group is in 10 degree of emergent ray, then blocks through the aluminum grill unit, it is possible to prevente effectively from direct line direct irradiation is black out
Plate effectively prevents dazzle caused by direct line, improves the comfort level of teacher's upper class hour.
Detailed description of the invention
Fig. 1 is the schematic diagram at the dazzle angle of background technique；
Fig. 2 is the structural schematic diagram of existing blackboard lights in background technique；
Fig. 3 is the schematic diagram of the installation site of existing blackboard lights in background technique；
Fig. 4 is the exploded view of the blackboard lights of the utility model；
Fig. 5 is the sectional view of the blackboard lights of the utility model；
Fig. 6 is the cross-sectional view of the blackboard lights length direction of the utility model；
Fig. 7 is the light path schematic diagram of the blackboard lights of the utility model；
Fig. 8 is the blackboard lights light distribution curve of the utility model；
Fig. 9 is the UGR test data table of the blackboard lights of the utility model；
In the figure, it is marked as shell 1, main body 11, lamp cap 12, cover board 13, protrusion 14, groove 15, the first mounting groove 16, the
Two mounting grooves 17, light source module group 2, substrate 21, luminescence unit 22, cavity 23, dazzle mould group 3, spreadlight lens 31, body part 311,
Polarisation portion 312, receiving portion 313, the first incidence surface 3131, the second incidence surface 3132, third incident curved surfaces 3133, aluminum grid list
Member 32, mainboard 321, flase floor 322, support plate 323, fin 324, screw 4.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, it is intended to for explaining the utility model, and should not be understood as practical to this
Novel limitation.
As shown in Figures 4 to 6, the utility model provides a kind of blackboard lights, comprising: shell 1；Light source module group 2 is set to institute
It states in shell 1, for shining, the light source module group 2 includes substrate 21 and the multi-group light-emitting unit being set on the substrate 21
22；Driving power component (not shown) is set to 1 inside/outside of shell, and it is luminous required to be used to provide the described light source module group 2
The electric power wanted；Anti-dazzle optical mode group 3 is set to the lower section of the light source module group 2, for eliminating direct line in dazzle angle, wraps
The aluminum grill unit 32 for including spreadlight lens 31 and being set to 31 outside of spreadlight lens.The spreadlight lens 31 is to seal simultaneously
The transparent PC multimaterial component of the light source module group 2 is protected, the light source module group 2 emits beam, and light is through the anti-dazzle optical mode group 3
Spreadlight lens 31 reflect after, being formed with the light source module group 2 is in 10 degree of emergent ray, then through the aluminum grill unit 32
It blocks, it is possible to prevente effectively from direct line direct irradiation goes out blackboard, effectively prevents dazzle caused by direct line, improve old
The comfort level of teacher's upper class hour.
The spreadlight lens 31 includes body part 311, is set to 311 top surface of body part and the multi-group light-emitting unit
22 corresponding multiple lens sections 312 and 31 top of multiple spreadlight lenses is respectively arranged at by the multi-group light-emitting unit 22
Multiple receiving portions 313 of cladding.The body part 311 is cuboid, and the lens section 312 and the receiving portion 313 can be
Direct injection molding is also possible to be process, convenient for production；The receiving 313 is not used to accommodate the multi-group light-emitting unit
22。
In conjunction with shown in Fig. 7 to Fig. 9, the receiving portion 313 includes the first vertical incidence surface 3131, the second incidence surface 3132
And the third incident curved surfaces 3133 being connected with the bottom of first incidence surface 3131 and second incidence surface 3132, it is described
The height of first incidence surface 3131 is greater than second incidence surface 3132.When installation, second incidence surface 3132 is located at close
The direction of blackboard metope, the light issued from the luminescence unit 22 are saturating into the polarisation by the third incident curved surfaces 3133
Mirror 31 is formed with the central axis of the luminescence unit 22 in 10 degree of emergent ray, largest beam angle is 20 after reflecting
Degree, average beam angle are 41 degree, meet asymmetric light emitting angle needed for blackboard lights, can effectively completely cut off the blackboard lights dazzle angle
Direct line in (45 ° of 85 ° of < dazzle angle <) range, emergent ray are blocked by the aluminum grill unit 32, can be effective
Direct projection intense direct illumination is avoided to go out the blackboard lights.
Luminescence unit 22 described in multiple groups is arranged along the length direction of the substrate 21 respectively, adjacent 312 He of lens section
Cavity 23 is formed between the substrate 21.When the spreadlight lens 31 is integrated injection molding, the cavity reduces described
The materials of spreadlight lens 31, save the cost.
The aluminum grill unit 32 includes two mainboards 321 being arranged along the length direction of the shell 1, interval setting
Several vertical flase floors 322 between described two mainboards 321 and the support for being set to two 321 bottoms of mainboard
Plate 323；The mainboard 321 plays the role of fixed support, several vertical 322 surfaces of flase floor can be plane or
Non-planar, during installation, the support plate 321 plays the fixed effect of support.
As the preferred embodiment of the utility model, the two sides of each flase floor 322 is respectively arranged with several sawtooth
The fin 324 of shape.Several fins 324 on the flase floor 322 enhance the intensity of the flase floor 322, specifically,
It can be and be spliced into the flase floor 322 by multiple aluminum plates, certainly, in other preferred embodiments of the utility model, often
The two sides of a flase floor 322 can be without the fin 324, and this will not be repeated here.
The shell 1 includes the main body 11 of aluminum profile, is set to the lamp cap 12 at 11 both ends of main body and is set to institute
The cover board 13 in 12 outside of lamp cap is stated, the light source module group 2 and the anti-dazzle optical mode group 3 are fixed on the shell by the lamp cap 12
In 1.The main body 11 of aluminum profile, stable structure, and the entire main body 11 is used to radiate, rapid heat dissipation, can rapidly by
The heat of the light source module group 2 distributes, and improves the service life of the light source module group 2.
The top of the main body 11 is provided with several protrusions 14, the inside difference of the protrusion 14 along its length
It is arranged fluted 15, the top surface of the main body 11 is provided with the first mounting groove 16, the light source module group 2 and institute along its length
Spreadlight lens 31 is stated to be connected by screw 4 with the top of the shell 1.Several grooves 15 described in 14 box of several protrusions,
The heat dissipation area of the main body 11 is increased, heat dissipation effect is improved.
1 inside of shell is provided with the second mounting groove with the aluminum grill unit 32 cooperation along its length
17.The support plate 323 is supported in the bottom of second mounting groove 17, and top is located at the top surface of second mounting groove 17,
After second mounting groove 17 positions the aluminum grill unit 32, two lamp caps 12 are respectively by the aluminum grid list
The both ends clamping of member 32 is fixed, and is locked by screw, can be fixed by the aluminum grill unit 32, fixed reliable, and is torn open
Dress takes convenient.
The substrate is to cover copper aluminum substrate, and the multi-group light-emitting unit is LED luminescence unit, and the multi-group light-emitting unit is logical
SMD technique is crossed to be soldered on the substrate.Has the advantages that long service life.
Fig. 9 is the blackboard lights of the utility model UGR value actually measured under different use occasions, it is seen then that the blackboard lights
Dazzle value UGR < 16, dazzle can be effectively reduced to blackboard lights, improve comfort level when using.
The blackboard lights of the utility model, the light source module group 2 emit beam, polarisation of the light through the anti-dazzle optical mode group 3
After lens 31 reflect, is formed and the light source module group 2 is in 10 degree of emergent ray, then blocked through the aluminum grill unit 32,
It is possible to prevente effectively from direct line direct irradiation goes out blackboard, dazzle caused by direct line is effectively prevented, is improved on teacher
The comfort level of class hour.
The above is only the most preferred embodiment of the utility model, is not made in any form to the utility model
Limitation, anyone skilled in the art, in the case where not departing from technical solutions of the utility model ambit, utilization is above-mentioned
The method content of announcement makes many possible changes and modifications to technical solutions of the utility model, belongs to claim protection
Range.
Claims (10)
1. a kind of blackboard lights characterized by comprising
Shell；
Light source module group is set in the shell for shining comprising substrate and the multi-group light-emitting being set on the substrate
Unit；
Driving power component is set to the shell inside/outside, is used to provide the described electric power required for light source module group shines；
Anti-dazzle optical mode group, is set to the lower section of the light source module group, for eliminating direct line in dazzle angle comprising polarisation is saturating
Mirror and the aluminum grill unit being set on the outside of the spreadlight lens.
2. blackboard lights as described in claim 1, it is characterised in that: the spreadlight lens includes body part, is set to described
Body portion, multiple polarisation portions corresponding with the multi-group light-emitting unit, top surface and be respectively arranged at the top of multiple polarisation portions will
Multiple receiving portions of the multi-group light-emitting unit cladding.
3. blackboard lights as claimed in claim 2, it is characterised in that: the receiving portion includes the first vertical incidence surface, second
Incidence surface and the third incident curved surfaces being connected with the bottom of first incidence surface and second incidence surface, described first enters
The height of smooth surface is greater than second incidence surface.
4. blackboard lights as claimed in claim 2, it is characterised in that: luminescence unit described in multiple groups is respectively along the length of the substrate
Direction setting, forms cavity between the adjacent spreadlight lens and the substrate.
5. blackboard lights as described in claim 1, it is characterised in that: the aluminum grill unit includes the length along the shell
Two mainboards of direction setting, several vertical flase floors for being arranged at intervals between described two mainboards and it is set to two
The support plate of the mainboard bottom.
6. blackboard lights as claimed in claim 5, it is characterised in that: the two sides of each flase floor is respectively arranged with several saws
The fin of dentation.
7. blackboard lights as described in claim 1, it is characterised in that: the shell include the main body of aluminum profile, be set to it is described
The lamp cap at main body both ends and the cover board being set on the outside of the lamp cap, the lamp cap is by the light source module group and the anti-dazzle
Mould group is fixed in the shell.
8. blackboard lights as claimed in claim 7, it is characterised in that: the top of the main body is provided with several along its length
Protrusion, is respectively set on the inside of the protrusion fluted, and the top surface of the main body is provided with the first peace along its length
Tankage, the light source module group and the spreadlight lens are connected by screw with the top of the shell.
9. blackboard lights as claimed in claim 6, it is characterised in that: the case inside be provided with along its length with it is described
Second mounting groove of aluminum grill unit cooperation.
10. blackboard lights as described in claim 1, it is characterised in that: the substrate is to cover copper aluminum substrate, the multi-group light-emitting list
Member is LED luminescence unit, and the multi-group light-emitting unit is soldered on the substrate by SMD technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453762.5U CN209415237U (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453762.5U CN209415237U (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209415237U true CN209415237U (en) | 2019-09-20 |
Family
ID=67946111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920453762.5U Active CN209415237U (en) | 2019-04-04 | 2019-04-04 | A kind of blackboard lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209415237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869664A (en) * | 2019-04-04 | 2019-06-11 | 苏州光景照明科技有限公司 | a blackboard lamp |
-
2019
- 2019-04-04 CN CN201920453762.5U patent/CN209415237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869664A (en) * | 2019-04-04 | 2019-06-11 | 苏州光景照明科技有限公司 | a blackboard lamp |
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