CN212259406U - Novel constant current drive circuit of dimming system - Google Patents
Novel constant current drive circuit of dimming system Download PDFInfo
- Publication number
- CN212259406U CN212259406U CN202021393262.6U CN202021393262U CN212259406U CN 212259406 U CN212259406 U CN 212259406U CN 202021393262 U CN202021393262 U CN 202021393262U CN 212259406 U CN212259406 U CN 212259406U
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- drive plate
- constant current
- gag lever
- lever post
- installation piece
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Abstract
The utility model discloses a novel constant current drive circuit of light modulation system of adjusting luminance relates to constant current device technical field, including installation piece and drive plate, the drive plate is located the installation piece directly over, the upper end of installation piece is provided with positioner, positioner includes the gag lever post, the lower extreme of gag lever post and the upper end fixed connection of installation piece, the cover is equipped with supporting spring on the gag lever post, supporting spring's lower extreme and the upper end fixed connection of installation piece, the cover is established and sliding connection has the holding ring on the gag lever post, supporting spring's upper end and the lower extreme fixed connection of holding ring, the gag lever post runs through the drive plate and rather than inner wall sliding connection, the upper end of holding ring offsets with the lower extreme of drive plate. During installation, the driving plate is sleeved on the limiting rod and inserted into the limiting rod, the driving plate abuts against the positioning ring, the positioning ring slides on the limiting rod under stress, the positioning ring extrudes the supporting spring, the supporting spring deforms under stress to generate elasticity, the driving plate abuts against the upper end of the limiting rod, and the driving plate is pressed by the positioning ring.
Description
Technical Field
The utility model relates to a constant current device technical field specifically is a novel constant current drive circuit of system of adjusting luminance.
Background
The constant current source is composed of a signal source and a Voltage Control Current Source (VCCS). The sine signal source adopts direct digital frequency synthesis (DDS) technology, namely sine sampling data are continuously read from an EPROM at a certain frequency, and sine signals required by EIT are generated after D/A conversion and filtering. The system adopts a DDS integrated chip AD9830, and two 12-bit phase registers and two 32-bit frequency registers are arranged in the DDS integrated chip AD 9830. The output of any frequency and phase below 2MHz can be conveniently obtained by setting the number of corresponding registers under the control of the singlechip, wherein the frequency precision is 1/232, the phase resolution is 2 pi/212, and the output amplitude can be adjusted within a certain range, so that the requirement of system multi-frequency excitation (10 kHz-1 MHz) can be met.
With the development of society, the improvement of science and technology, constant current circuit is used by a large amount, but current most drive plates pass through bolt and welded mode fixed mounting, and complex operation and be unfavorable for the maintenance of equipment later stage need improve to this.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel constant current drive circuit of system of adjusting luminance adjusts luminance to prior art not enough.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a novel constant current drive circuit of system of adjusting luminance adjusts luminance, includes installation piece and drive plate, the drive plate is located directly over the installation piece, the upper end of installation piece is provided with positioner, positioner includes the gag lever post, the lower extreme of gag lever post and the upper end fixed connection of installation piece, the cover is equipped with supporting spring on the gag lever post, supporting spring's lower extreme and the upper end fixed connection of installation piece, the cover is established and sliding connection has the holding ring on the gag lever post, supporting spring's upper end and the lower extreme fixed connection of holding ring, the gag lever post runs through the drive plate and rather than inner wall sliding connection, the upper end of holding ring offsets with the lower extreme of drive plate, and the gag lever post is two segmentations, and the surface of gag lever post is protruding type, is convenient for support the.
Preferably, four positioning holes are formed in the upper end of the driving plate at equal intervals, the limiting rod penetrates through the positioning holes, and the surface of the limiting rod is connected with the inner walls of the positioning holes in a sliding mode, so that the position of the driving plate is limited conveniently.
Preferably, the spacing groove has been seted up on the surface of gag lever post, insert in the spacing groove and establish and sliding connection has a spacing, the lower extreme of spacing offsets with the upper end of drive plate, at the installation, establish the drive plate cover on the gag lever post and insert it, the drive plate offsets with the holding ring, the holding ring atress slides on the gag lever post, holding ring extrusion supporting spring, supporting spring atress deformation produces elasticity, the drive plate offsets with the upper end of gag lever post, the drive plate receives the pressure of holding ring, thereby insert the spacing in the spacing groove and fix the drive plate, avoid traditional most drive plates to pass through bolt and welded mode fixed mounting, complex operation and be unfavorable for the maintenance in equipment later stage, the device's the easy-to-use nature that effectively improves equipment of application.
Preferably, a constant current device is arranged at the upper end of the driving board, the constant current device comprises an electronic element, the lower end of the electronic element is fixedly connected with the upper end of the driving board, the upper end of the driving board is fixedly connected with an input interface, and the upper end of the driving board is fixedly connected with an output interface, so that normal use of the equipment is ensured.
Preferably, the lower extreme of drive plate is provided with protector, protector is located the installation piece directly over, when the drive plate need overhaul, pulls the protection casing, and the protection casing atress breaks away from the mounting bracket, demolishs down the protection casing and can overhaul the drive plate, avoids traditional most equipment to appear pin and equipment contact when using and causes the unable normal use's of equipment the condition, and the device's the stability that effectively improves equipment of application.
Preferably, the protection device comprises a mounting frame, the upper end of the mounting frame is fixedly connected with the lower end of the drive plate, the number of the mounting frame is two, the two mounting frames are arranged in a mirror image mode, a protective cover is inserted between the mounting frames and connected in a sliding mode, and the protective cover is located under the drive plate and effectively protects pins on the drive plate.
The utility model provides a novel constant current drive circuit of system of adjusting luminance adjusts luminance. The method has the following beneficial effects:
(1) the utility model discloses a spacing structure, including the spacing pole, the installation, establish the drive plate cover on the gag lever post and insert it, the drive plate offsets with the holding ring, the holding ring atress slides on the gag lever post, holding ring extrusion supporting spring, supporting spring atress deformation produces elasticity, the drive plate offsets with the upper end of gag lever post, the drive plate receives the pressure of holding ring, thereby fix the drive plate with the spacing frame in inserting the spacing groove, avoid the most drive plates of tradition to pass through bolt and welded mode fixed mounting, complex operation and be unfavorable for the maintenance in equipment later stage, the device's the effective ease for use that improves equipment of application.
(2) When the drive plate needs to be overhauled, the drive plate is dismantled, the pulling protection casing, the protection casing atress breaks away from the mounting bracket, and the protection casing can be overhauld the drive plate under dismantling, avoids the condition that pin and equipment contact caused the unable normal use of equipment to appear when using in the most traditional equipment, and the device's the stability of using effective improve equipment.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the constant current device of the present invention;
FIG. 3 is a schematic structural view of the middle positioning device of the present invention;
fig. 4 is a schematic structural view of the middle protection device of the present invention.
In the figure: 1. a positioning device; 11. a limiting rod; 12. a limiting frame; 13. positioning holes; 14. a positioning ring; 15. a limiting groove; 16. a support spring; 2. a drive plate; 3. mounting blocks; 4. a constant current device; 41. an input interface; 42. an output interface; 43. an electronic component; 5. a guard; 51. a protective cover; 52. and (7) mounting frames.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
The specific embodiment is as follows:
referring to fig. 1-4, a novel constant current drive circuit of light modulation system of adjusting luminance, including installation piece 3 and drive plate 2, drive plate 2 is located directly over installation piece 3, the upper end of installation piece 3 is provided with positioner 1, positioner 1 includes gag lever post 11, the lower extreme of gag lever post 11 and the upper end fixed connection of installation piece 3, the cover is equipped with supporting spring 16 on the gag lever post 11, supporting spring 16's lower extreme and the upper end fixed connection of installation piece 3, the cover is established and sliding connection has holding ring 14 on the gag lever post 11, supporting spring 16's upper end and holding ring 14's lower extreme fixed connection, gag lever post 11 runs through drive plate 2 and rather than inner wall sliding connection, the upper end of holding ring 14 offsets with the lower extreme of drive plate 2, gag lever post 11 is two segmentation, the surface of gag lever post 11 is protruding type, be convenient for support drive plate 2.
Optionally, in this embodiment, four positioning holes 13 are formed in the upper end of the driving plate 2 at equal intervals, the limiting rod 11 penetrates through the positioning holes 13, and the surface of the limiting rod 11 is slidably connected to the inner walls of the positioning holes 13, so as to limit the position of the driving plate 2.
Optionally, in this embodiment, a limiting groove 15 has been seted up on the surface of gag lever post 11, insert in the gag lever post 15 and establish and sliding connection has a spacing 12, the lower extreme of spacing 12 offsets with the upper end of drive plate 2, in the installation, establish drive plate 2 cover on gag lever post 11 and insert it, drive plate 2 offsets with holding ring 14, holding ring 14 atress slides on gag lever post 11, holding ring 14 extrudes supporting spring 16, supporting spring 16 atress deformation produces elasticity, drive plate 2 offsets with the upper end of gag lever post 11, drive plate 2 receives the pressure of holding ring 14, thereby fix drive plate 2 in inserting spacing groove 15 with spacing 12, avoid traditional most drive plate 2 to pass through bolt and welded mode fixed mounting, complex operation and be unfavorable for the maintenance in equipment later stage, the device's application effectively improves the ease for equipment.
It is worth to be noted that the constant current device 4 is arranged at the upper end of the driving plate 2, the constant current device 4 comprises an electronic element 43, the lower end of the electronic element 43 is fixedly connected with the upper end of the driving plate 2, the upper end of the driving plate 2 is fixedly connected with an input interface 41, and the upper end of the driving plate 2 is fixedly connected with an output interface 42, so that normal use of the device is ensured.
In addition, the lower extreme of drive plate 2 is provided with protector 5, protector 5 is located installation piece 3 directly over, when drive plate 2 need overhaul, pull down drive plate 2, pulling protection casing 51, protection casing 51 atress breaks away from mounting bracket 52, demolish down protection casing 51 and can overhaul drive plate 2, avoid the condition that pin and equipment contact caused the unable normal use of equipment to appear when using in the most traditional equipment, the device's the stability of effectively improving equipment of using.
More specifically, protector 5 includes mounting bracket 52, and the upper end of mounting bracket 52 and the lower extreme fixed connection of drive plate 2, the quantity of mounting bracket 52 is two, and two mounting brackets 52 are the mirror image setting, insert between mounting bracket 52 and establish and sliding connection has protection casing 51, and protection casing 51 is located drive plate 2 under, effectively protects the pin on the drive plate 2.
The utility model discloses a theory of operation: during installation, the driving plate 2 is sleeved on the limiting rod 11 and inserted, the driving plate 2 abuts against the positioning ring 14, the positioning ring 14 is stressed to slide on the limiting rod 11, the positioning ring 14 extrudes the supporting spring 16, the supporting spring 16 is stressed and deformed to generate elasticity, the driving plate 2 abuts against the upper end of the limiting rod 11, the driving plate 2 is stressed by the pressure of the positioning ring 14, the limiting frame 12 is inserted into the limiting groove 15 to fix the driving plate 2, the phenomenon that most of traditional driving plates 2 are fixedly installed in a bolt and welding mode, the operation is complex and is not beneficial to later maintenance of equipment is avoided, the device is applied to effectively improve the usability of the equipment, when the driving plate 2 needs to be overhauled, the driving plate 2 is detached, the protective cover 51 is pulled, the protective cover 51 is stressed to be separated from the mounting frame 52, the protective cover 51 can be dismantled to overhaul the driving plate 2, and the condition that the equipment cannot be normally, the device effectively improves the stability of equipment.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel constant current drive circuit of system of adjusting luminance adjusts luminance, includes installation piece (3) and drive plate (2), its characterized in that: drive plate (2) are located installation piece (3) directly over, the upper end of installation piece (3) is provided with positioner (1), positioner (1) includes gag lever post (11), the lower extreme of gag lever post (11) and the upper end fixed connection of installation piece (3), the cover is equipped with supporting spring (16) on gag lever post (11), the lower extreme of supporting spring (16) and the upper end fixed connection of installation piece (3), the cover is established and sliding connection has holding ring (14) on gag lever post (11), the upper end of supporting spring (16) and the lower extreme fixed connection of holding ring (14), gag lever post (11) run through drive plate (2) and rather than inner wall sliding connection, the upper end of holding ring (14) offsets with the lower extreme of drive plate (2).
2. The constant current driving circuit of a novel dimming system according to claim 1, wherein: four positioning holes (13) arranged at equal intervals are formed in the upper end of the driving plate (2), the limiting rod (11) penetrates through the positioning holes (13), and the surface of the limiting rod (11) is in sliding connection with the inner walls of the positioning holes (13).
3. The constant current driving circuit of a novel dimming system according to claim 1, wherein: the surface of the limiting rod (11) is provided with a limiting groove (15), a limiting frame (12) is inserted in the limiting groove (15) and connected in a sliding mode, and the lower end of the limiting frame (12) is abutted to the upper end of the driving plate (2).
4. The constant current driving circuit of a novel dimming system according to claim 1, wherein: the constant current device (4) is arranged at the upper end of the driving plate (2), the constant current device (4) comprises an electronic element (43), the lower end of the electronic element (43) is fixedly connected with the upper end of the driving plate (2), an input interface (41) is fixedly connected to the upper end of the driving plate (2), and an output interface (42) is fixedly connected to the upper end of the driving plate (2).
5. The constant current driving circuit of a novel dimming system according to claim 1, wherein: the lower extreme of drive plate (2) is provided with protector (5), protector (5) are located the directly over of installation piece (3).
6. The constant current driving circuit of a novel dimming system as claimed in claim 5, wherein: protector (5) include mounting bracket (52), the upper end of mounting bracket (52) and the lower extreme fixed connection of drive plate (2), the quantity of mounting bracket (52) is two, two mounting bracket (52) are the mirror image setting, insert between mounting bracket (52) and establish and sliding connection has protection casing (51), protection casing (51) are located drive plate (2) under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021393262.6U CN212259406U (en) | 2020-07-15 | 2020-07-15 | Novel constant current drive circuit of dimming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021393262.6U CN212259406U (en) | 2020-07-15 | 2020-07-15 | Novel constant current drive circuit of dimming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212259406U true CN212259406U (en) | 2020-12-29 |
Family
ID=73980184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021393262.6U Expired - Fee Related CN212259406U (en) | 2020-07-15 | 2020-07-15 | Novel constant current drive circuit of dimming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212259406U (en) |
-
2020
- 2020-07-15 CN CN202021393262.6U patent/CN212259406U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 Termination date: 20210715 |