CN113966036A - Integral type down lamp with power storehouse - Google Patents
Integral type down lamp with power storehouse Download PDFInfo
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- CN113966036A CN113966036A CN202110932655.2A CN202110932655A CN113966036A CN 113966036 A CN113966036 A CN 113966036A CN 202110932655 A CN202110932655 A CN 202110932655A CN 113966036 A CN113966036 A CN 113966036A
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- 230000001629 suppression Effects 0.000 claims description 31
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- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/345—Current stabilisation; Maintaining constant current
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an integrated down lamp with a power supply bin, which comprises: the power supply cabin is internally provided with a driving power supply module, and an external cable penetrates through a through hole on the surface of the power supply cabin and is connected to the driving power supply module; the lamp body is connected to the driving power supply module through a connecting wire; and a driving circuit is arranged in the driving power supply module and is used for controlling the lamp body to emit light. The invention has the beneficial effects that: the power supply cabin with the wiring function is arranged to protect the joint of an external cable and the power supply driving module, the problems of water inflow, scratching, electric shock and the like caused by the fact that a wiring end is exposed outside are avoided, the light emitting effect of the lamp body is adjusted through the power supply driving module, and the lamp body can generate light rays with different color temperatures.
Description
Technical Field
The invention relates to the technical field of lighting lamps, in particular to an integrated down lamp with a power supply bin.
Background
As a common lighting tool, the down lamp is widely applied to the environments of industry, home, business, outdoor landscape, and the like. Through changing lamp shade and light source, can be so that the down lamp produces corresponding illuminating effect according to the demand of difference under different environment. Compared with the traditional lamp, the lamp has the advantages of more attractive and convenient use effect and easy adjustment. In the house environment, the down lamp can be set up in different positions according to the needs of design, like garden lamp, wash pinup, ceiling lamp, wall lamp, cupboard lamp etc.. The requirements for the design of the lamp body are changed according to different placing positions. For example, the down lamp that sets up in indoor environment outward appearance needs comparatively beautifully, and it is lower to generate heat, can adjust different colour temperatures according to the difference of decoration style, often does not have very high requirement to the contrast. The down lamp in the outdoor environment must have long service life, high reliability, waterproof and dustproof functions and the like, and the design concept of the down lamp is completely different from that of the down lamp in the indoor environment, so that a series of design problems are generated.
In the prior art, downlights are often separate, without adjustment means, placed in a specific position according to the circuit design and then connected by the constructor to the power box or control switch. Because the down lamp does not have adjusting device, its photochromic of formation is comparatively single, can not adapt to user's demand well. Meanwhile, in order to meet the requirements of customers on down lamps with different light colors, manufacturers often need to provide a plurality of production lines or additionally increase a large amount of stock, and certain stock pressure and extra loss are caused.
Disclosure of Invention
To the above-mentioned problem that exists among the prior art, an integral type down lamp with power storehouse is provided now.
The specific technical scheme is as follows:
an integral type down lamp with power storehouse includes:
the power supply cabin is internally provided with a driving power supply module, and an external cable penetrates through a through hole on the surface of the power supply cabin and is connected to the driving power supply module;
the lamp body is connected to the driving power supply module through a connecting wire;
and a driving circuit is arranged in the driving power supply module and is used for controlling the lamp body to emit light.
Preferably, the power supply bin includes:
a housing having a side surface provided with a plurality of removable side covers;
the side cover is used for forming the through hole after being removed, so that the external cable penetrates through the surface of the power supply bin and enters the interior of the power supply bin;
one side of the upper cover is connected with the shell through a connecting piece and rotates freely by taking the connecting piece as a shaft;
the other side of the shell opposite to the connecting piece is provided with a first end of a fastening device;
the other side of the upper cover opposite to the connecting piece is provided with a second end of a fastening device;
the first end of the fastening device and the second end of the fastening device are used for closing the upper cover on the shell.
Preferably, the driving power module includes:
the circuit board is provided with the driving circuit;
the protective shell is wrapped outside the circuit board;
the protective shell is a cube, a pair of guide groove structures are arranged in the protective shell, and the circuit board is fixed in the protective shell through the guide groove structures;
and a switch is arranged on one side surface of the protective shell, and the switch is connected with the driving circuit and is used for controlling the lamp body to emit light.
Preferably, the driving circuit includes:
a pre-stage suppression circuit connected to the external cable;
the constant current control circuit is connected with the output end of the preceding stage suppression circuit;
a charge absorption circuit is also arranged between the constant current control circuit and the preceding stage suppression circuit;
the rectification filter circuit is connected with the output end of the constant current control circuit;
the ripple suppression circuit is connected with the output end of the rectification filter circuit;
the output end of the ripple suppression circuit is connected to the light source driving circuit;
the other end of the light source driving circuit is connected with a switch circuit;
preferably, the switch circuit is a three-stage switch circuit or a five-stage switch circuit;
the light source driving circuit is provided with a power supply driving end, a high color temperature adjusting end and a low color temperature adjusting end;
the switch circuit controls the color temperature of the lamp body through the high color temperature adjusting end and the low color temperature adjusting end.
Preferably, the three-stage switching circuit includes:
a first pin of the three-level switch is connected to the high color temperature adjusting end;
a second pin of the three-level switch is connected to the output end of the rectification filter circuit;
a third pin of the three-level switch is connected to an anode of a first diode of the three-level switch circuit;
the cathode of the first diode of the three-level switch circuit is connected to the high color temperature adjusting end through two groups of resistors connected in parallel, and the two groups of resistors connected in parallel comprise: the three-stage switching circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the first resistor and the second resistor are connected in series;
a fourth pin of the tertiary switching circuit is connected to a cathode of a second diode of the tertiary switching circuit, and an anode of the second diode of the tertiary switching circuit is connected to an anode of a first diode of the tertiary switching circuit;
the fourth pin of the three-level switching circuit is also connected to the low color temperature regulating end;
preferably, the five-stage switching circuit includes:
a first pin of the five-stage switch is connected to the high color temperature adjusting end;
the high color temperature adjusting end is connected to the anode of the first diode of the five-stage switching circuit;
the cathode of the first diode of the five-stage switch circuit is connected to the first resistor of the five-stage switch circuit;
the other end of the first resistor of the five-stage switching circuit is connected with the cathode of a second diode of the five-stage switching circuit;
the anode of a second diode of the five-stage switching circuit is connected to the low color temperature adjusting end;
the junction of the first resistor of the five-stage switch circuit and the cathode of the second diode of the five-stage switch circuit is taken as a first node;
a second pin of the five-stage switch is connected to the first node through a second resistor of the five-stage switch circuit and a third diode of the five-stage switch circuit in sequence;
the anode of a third diode of the five-stage switch circuit is connected with the first node;
the junction of the second pin of the five-level switch and the second resistor of the five-level switch circuit is connected to the cathode of the fourth diode of the five-level switch circuit, and the anode of the fourth diode of the five-level switch circuit is connected to the first pin of the five-level switch;
a third pin of the five-stage switch is connected to the output end of the rectification filter circuit;
a fourth pin of the five-stage switch is connected to the first node;
a fifth pin of the five-stage switch is connected to the first node through a third resistor of the five-stage switch circuit and a fifth diode of the five-stage switch circuit in sequence;
the anode of a fifth diode of the five-stage switching circuit is connected with the first node;
and the joint of the fifth pin of the five-stage switch and the third resistor of the five-stage switch circuit is connected to the sixth pin of the five-stage switch circuit, and the sixth pin is connected to the low color temperature regulating end.
Preferably, the pre-stage suppression circuit includes:
the input end of the common mode inductor is respectively connected with a live wire and a zero line of the external cable;
an overload protection device is further arranged at the joint of the common mode inductor and the live wire;
the input end of the differential mode inductor is connected to the output end of the common mode inductor;
the output end of the differential mode inductor is connected to a rectifier bridge, and the output end of the rectifier bridge is connected to an inductor;
the other end of the inductor is the output end of the preceding stage suppression circuit;
and two ends of the inductor are grounded through the first capacitor of the preceding stage and the second capacitor of the preceding stage respectively.
Preferably, the ripple suppression circuit includes:
the drain electrode of the field effect tube is connected to the positive output end of the rectification filter circuit;
the grid electrode of the field effect tube is connected to the negative output end of the rectification filter circuit sequentially through the current-limiting resistor and the filter capacitor;
the source electrode of the field effect transistor is connected to the power supply driving end of the light source driving circuit;
the grid electrode and the source electrode of the field effect transistor are connected with a bypass capacitor through a group of first voltage stabilizing diodes of the rectifying and filtering circuit in parallel connection;
the source electrode and the drain electrode of the field effect transistor are connected through a first resistor of the rectifying and filtering circuit;
and the junction of the current-limiting resistor and the filter capacitor is connected to the drain electrode of the field effect transistor sequentially through a second voltage stabilizing diode of the rectifying and filtering circuit, and the diode of the rectifying and filtering circuit and the second resistor of the rectifying and filtering circuit which are connected in parallel are connected to the drain electrode of the field effect transistor.
Preferably, the lamp body includes:
the connecting wire penetrates through the lamp body back shell and is connected with a light source arranged in the lamp body back shell;
the light source comprises a plurality of groups of low color temperature light sources and high color temperature light sources and is used for forming emergent light with different color temperatures under the control of the switch circuit;
the lamp body surface ring is provided with a luminous mask in the middle, the lamp body surface ring and the lamp body back shell are matched to form a closed structure, and the light source is arranged in the closed structure;
the outer side of the lamp body back shell is provided with a fixing structure used for fixing the lamp body on an external structure.
The technical scheme has the following advantages or beneficial effects: the power supply bin with the wiring function is arranged to protect the joint of the external cable and the power supply driving module, and the light emitting effect of the lamp body is adjusted through the power supply driving module, so that the lamp body can generate light rays with different color temperatures, the production cost is reduced, and the inventory pressure and the resource waste caused by the production of different down lamps according to the color temperatures in the prior art are avoided.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
FIG. 1 is an overall schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power supply compartment according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a power driving module according to an embodiment of the invention;
FIG. 3A is a schematic diagram of a power driving module with a three-level switch according to an embodiment of the invention;
FIG. 3B is a schematic diagram of a power driving module with a five-level switch according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a circuit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a light source driving circuit according to an embodiment of the invention;
FIG. 6 is a schematic diagram of a three-stage switching circuit according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a five-stage switch circuit according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The invention comprises the following steps:
an integral type down lamp with power storehouse includes:
the power supply comprises a power supply bin 1, wherein a driving power supply module 2 is arranged in the power supply bin, and an external cable penetrates through a through hole on the surface of the power supply bin and is connected to the driving power supply module;
the lamp body 4 is connected to the driving power supply module 2 through a connecting wire 5;
a driving circuit 3 is arranged in the driving power module 2, and the driving circuit 3 is used for controlling the lamp body 4 to emit light.
In a preferred embodiment, the power supply compartment 1 comprises:
a housing 11 provided with a plurality of removable side covers 12 at its sides;
the side cover 12 is used for forming a through hole after being removed, so that an external cable penetrates through the surface of the power supply bin and enters the interior of the power supply bin;
one side of the upper cover 13 is connected with the shell through a connecting piece and rotates freely by taking the connecting piece as a shaft;
specifically, the connecting member may be one of a hinge, a rotating shaft, and a hinge.
A first end 14 of the fastening device is arranged on the other side of the shell opposite to the connecting piece;
the other side of the upper cover opposite to the connecting piece is provided with a second end 15 of the fastening device;
specifically, the fastening device may be one of a bayonet, a bolt, a slot, a latch, and a magnetic attraction member.
The first end of the fastening device and the second end of the fastening device are used for closing the upper cover on the shell.
In a preferred embodiment, the power supply bin 1 has a length of 100mm, a width of 70mm and a height of 30mm-35mm
In a preferred embodiment, the driving power module 2 includes:
the circuit board is provided with a driving circuit 3;
the protective shell is wrapped outside the circuit board;
the protective shell is a cube, a pair of guide groove structures are arranged in the protective shell, and the circuit board is fixed in the protective shell through the guide groove structures;
a switch 6 is arranged on one side face of the protective shell and connected with the driving circuit and used for controlling the lamp body to emit light.
Specifically, as shown in fig. 3, the protective case is fixed in the power supply compartment 1 by the protective case fixing screw 18, and a wiring cavity is formed in the power supply compartment 1. The wiring cavity is close to the side cover 12 and used for splitting an external cable and connecting and fixing the external cable with the driving power supply module 2. Meanwhile, the wiring cavity is also provided with a ground wire screw 17 for fixing the ground wire and leading the ground wire out to the outside, so that a better grounding effect is achieved. A sliding groove structure is formed in one side face of the protective shell, and the switch 6 is installed behind the sliding groove structure and reciprocates along the direction of the sliding groove structure under the control of a user. The sliding groove structure is close to the outer side of the protective shell and can be covered with a gear mark for indicating a gear corresponding to the current switch position, so that a user can conveniently judge the light-emitting condition of the lamp body 4. Further, as shown in fig. 3A, when the switch 6 is a three-level switch, the protective shell has a three-level color temperature mark; as shown in fig. 3B, when the switch 6 is a five-stage switch, the protective shell has a five-stage color temperature mark. And a connecting wire through hole is formed in the other side surface of the protective shell opposite to the sliding groove structure and used for leading out a connecting wire 5 connected with the circuit board 3 from the driving power module 2. Corresponding connecting line holes are also provided at positions of the housing 1 corresponding to the connecting line through holes. The protective housing is formed by stretching PC plastic to achieve a good insulating effect and a good protective performance, and meanwhile, the production cost is reduced.
Further, the protective shell forms a cube based on the PC plastic stretching process, and the inner diameter of the protective shell is slightly larger than or equal to the length of the short axis direction of the circuit board. One side surface of the protective shell is provided with a protruding part which extends outwards, the protruding part is in a long strip shape, and a through hole is formed in the middle part of the protective shell along the vertical direction of the side surface and is used for fixing the protective shell in the power supply bin 1 through a protective shell fixing screw 18. The inner wall of the protective shell is provided with a pair of parallel guide groove structures along the long axis direction, and the length of each guide groove structure is equal to that of the protective shell. The guide groove structure is provided with a pair of flange structures extending from the inner wall of the protective shell on one side, and the cross section of each flange structure is rectangular. The spacing between the flange structures is equal to the width of the circuit board 3. Can effectively form spacingly to the upper and lower bottom surface of circuit board 3 through setting up the flange structure to fix circuit board 3 in the guide slot structure, avoided the problem of the installation difficulty that leads to through screw fixation circuit board 3 among the prior art, the later stage of being convenient for is maintained the change.
In a preferred embodiment, the channel formation is provided in the protective casing on the side opposite the side having the projection.
In a preferred embodiment, the height of the protective shell is between 20mm and 22mm, and the distance between the protective shell and the upper cover 13 of the power supply bin 1 is between 8mm and 9 mm.
In a preferred embodiment, as shown in fig. 4, the driving circuit 3 comprises:
a preceding stage suppression circuit 31, the preceding stage suppression circuit 31 being connected to an external cable;
the constant current control circuit 32, the constant current control circuit 32 connects the output end of the preceding stage suppression circuit 31;
a charge absorption circuit 33 is further provided between the constant current control circuit 32 and the preceding stage suppression circuit 31;
the rectification filter circuit 34, the rectification filter circuit 34 connects the output end of the constant current control circuit 32;
the ripple suppression circuit 35, the ripple suppression circuit 35 is connected with the output end of the rectifying and filtering circuit 34;
the output end of the ripple suppression circuit 35 is connected to the light source driving circuit 36;
the other end of the light source driving circuit 36 is connected to a switching circuit.
In a preferred embodiment, as shown in fig. 3A and 3B, the switching circuit is a three-stage switching circuit 37A or a five-stage switching circuit 37B;
as shown in FIG. 5, the light source driving circuit 36 has a power driving end LED +, a high color temperature adjustment end CW-and a low color temperature adjustment end WW-;
the switching circuit controls the color temperature at the time of light emission of the lamp body 4 through a high color temperature adjustment terminal CW-and a low color temperature adjustment terminal WW.
Specifically, the light source driving circuit 36 includes a high color temperature branch in which a plurality of high color temperature light sources W1 and W2 are connected in series, and a low color temperature branch in which a plurality of low color temperature light sources C1 and C2 are connected in series. The two ends of the high color temperature branch are respectively connected to the power supply driving end LED + and the high color temperature adjusting end CW-, the two ends of the low color temperature branch are respectively connected to the power supply driving end LED + and the low color temperature adjusting end WW-, and the light source brightness of the high color temperature branch and the light source brightness of the low color temperature branch can be adjusted by controlling the high color temperature adjusting end CW-and the low color temperature adjusting end WW, so that light rays with different color temperatures are formed.
In a preferred embodiment, as shown in FIG. 6, a three stage switching circuit 37A includes:
the first pin of the three-level switch SW1A, SW1A is connected to the high color temperature regulating end CW-;
the second pin of the three-level switch SW1A is connected to the output terminal VO-of the rectifying and filtering circuit 34;
a third pin of the three-stage switch SW1A is connected to an anode of a first diode D5 of the three-stage switch circuit;
the cathode of the first diode D5 of the three-level switch circuit is connected to a high color temperature adjusting end through two groups of parallel resistors, and the two groups of parallel resistors comprise: the three-stage switch circuit comprises a first resistor R19 and a second resistor R17 of the three-stage switch circuit which are connected in series, and a third resistor R20 and a fourth resistor R18 of the three-stage switch circuit which are connected in series;
a fourth pin of the tertiary switch SW1A is connected to a cathode of the tertiary switch circuit second diode D4, and an anode of the tertiary switch circuit second diode D4 is connected to an anode of the tertiary switch circuit first diode D5;
the fourth pin of three-stage switch circuit SW1A is also connected to low color temperature adjustment terminal WW-.
Specifically, taking a lamp with a color temperature of three levels of 2700K-3000K-4000K as an example, when the first pin of the three-level switch SW1A is communicated with the second pin, the output end VO-and the high color temperature adjusting end CW-are switched on, and the high color temperature 4000K LED light source is lighted; when the second pin of the three-level switch SW1A is communicated with the third pin, the output end VO-, the third-level switch circuit second diode D4 and the low color temperature adjusting end WW-are connected, the output end VO-, the third-level switch circuit first diode D5, the series-connected third-level switch circuit first resistor R19 and the third-level switch circuit second resistor R17, the series-connected third-level switch circuit third resistor R20, the series-connected third-level switch circuit fourth resistor R18 and the high color temperature adjusting end CW-are connected, namely, 2700K and 4000K light sources are simultaneously lightened, because the current limiting resistors R17/R18/R19/R20 exist, the high color temperature branch current is reduced, the resistance value of the resistors is adjusted according to actual current requirements, and the color temperature of the LED is lightened to be 3000K; when the second pin of the three-level switch SW1A is connected to the fourth pin, the output VO-and the low color temperature adjustment WW-are turned on, and the 2700K light source is lit to form low color temperature light.
In a preferred embodiment, as shown in fig. 7, the five-stage switch circuit 37B includes:
a first pin of the five-stage switch SW1B, a first pin of the five-stage switch SW1B is connected to a high color temperature regulating terminal CW-;
the high color temperature adjusting end CW-is connected to the anode of the first diode D1A of the five-stage switch circuit;
the cathode of the first diode D1A of the five-stage switch circuit is connected to the first resistor R1A of the five-stage switch circuit;
the other end of the first resistor R1A of the five-stage switch circuit is connected with the cathode of a second diode D2A of the five-stage switch circuit;
the anode of the second diode D2A of the five-stage switch circuit is connected to the low color temperature adjusting end WW-;
the junction of the first resistor R1A of the five-level switch circuit and the cathode of the second diode D2A of the five-level switch circuit is taken as a first node;
a second pin of the five-stage switch SW1B is connected to the first node through a second resistor R3A of the five-stage switch circuit and a third diode D5A of the five-stage switch circuit in sequence;
the anode D5A of the third diode of the five-stage switch circuit is connected with the first node;
the junction of the second pin of the fifth-stage switch SW1B and the second resistor R3A of the fifth-stage switch circuit is connected to the cathode of the fourth diode D6A of the fifth-stage switch circuit, and the anode of the fourth diode D6A of the fifth-stage switch circuit is connected to the first pin of the fifth-stage switch SW 1B;
the third pin of the five-stage switch SW1B is connected to the output terminal VO-of the rectifying and filtering circuit 34;
the fourth pin of the five-stage switch SW1B is connected to the first node;
a fifth pin of the five-stage switch SW1B is connected to the first node through a fifth resistor R2A of the five-stage switch circuit and a fifth diode D4A of the five-stage switch circuit in sequence;
the anode of the fifth diode D4A of the five-stage switching circuit is connected with the first node;
the junction of the fifth pin of the five-stage switch SW1B and the third resistor R2A of the five-stage switch circuit is connected to the cathode of the sixth diode D3A of the five-stage switch circuit, and the anode of the sixth diode D3A of the five-stage switch circuit is connected to the low color temperature adjusting end WW-;
the sixth pin of the five-stage switch SW1B is connected to the low color temperature adjustment terminal WW-.
In particular, take a down lamp with a color temperature of 2700K-3000K-3500K-4000K-5000K as an example,
when the first pin and the third pin of the five-stage switch SW1B are communicated, only the high color temperature branch is lighted, and at this time, the lamp body 4 emits light with a color temperature of 5000K;
when the second pin and the third pin of the five-stage switch SW1B are connected, the high color temperature branch and the low color temperature branch are both lighted, and at this time, the current of the high color temperature branch and the current of the low color temperature branch can be adjusted by adjusting the second resistor R3A of the five-stage switch circuit. Thereby making the lamp body 4 form light of 3000K color temperature.
When the fourth pin and the third pin of the five-level switch SW1B are connected, the high color temperature branch and the low color temperature branch are both lighted, and at this time, the current of the high color temperature branch and the current of the low color temperature branch can be adjusted by adjusting the first resistor R1A of the five-level switch circuit. Thereby making the lamp body 4 form light with a color temperature of 3500K.
When the fifth pin and the third pin of the five-stage switch SW1B are connected, the high color temperature branch and the low color temperature branch are both lighted, and at this time, the current of the high color temperature branch and the current of the low color temperature branch can be adjusted by adjusting the third resistor R2A of the five-stage switch circuit. Thereby making the lamp body 4 form light of 4000K color temperature.
When the sixth pin and the third pin of the five-stage switch SW1B are connected, only the low color temperature branch is lit, and the lamp body 4 emits light with a color temperature of 2700K.
In a preferred embodiment, as shown in fig. 4, the pre-stage suppression circuit 31 includes:
the input end of the common mode inductor CM1 is connected with a live line L and a zero line N of an external cable respectively and used for inhibiting common mode interference;
an overload protection device FR1 is further arranged at the joint of the common mode inductor CM1 and the live wire L;
in particular, the overload protection device FR1 may be a fuse resistor, an air switch or a relay, which is used to prevent damage to the circuit caused by surge or short circuit.
The input end of the differential mode inductor CM2 is connected to the output end of the common mode inductor CM1, and the differential mode inductor CM2 is used for suppressing differential mode interference;
the output end of the differential mode inductor CM2 is connected to a rectifier bridge, and the output end of the rectifier bridge is connected to an inductor L1;
the other end of the inductor L1 is the output end of the pre-stage suppression circuit 31;
two ends of the inductor L1 are grounded through a first capacitor C1 at the front stage and a second capacitor C2 at the front stage respectively;
specifically, the inductor L1, the preceding-stage first capacitor C1, and the preceding-stage second capacitor C2 constitute a ii filter circuit for suppressing differential mode interference.
The junction of the inductor L1 and the output end of the rectifier bridge is grounded through a surge protector MOV.
Specifically, the surge protector MOV may be a varistor or other SPD device for deriving excess charge generated by surge in case of lightning strike to protect the back-end circuit. The output terminal of the pre-stage suppression circuit 31 is further connected to the negative input terminal VO-of the rectifying and filtering circuit 34 through a capacitor CY1 for improving the EMI suppression effect.
In a preferred embodiment, the input terminal of the charge absorption circuit 33 is connected to the output terminal of the pre-suppression circuit 31, and is grounded through the capacitor C3 and the resistor FR2, which form an RC loop, and when the constant current control circuit 32 is at low level, a certain current is maintained to make it operate normally, so as to avoid the light source from flickering.
In a preferred embodiment, the constant current control circuit 32 includes:
a first pin VS of the control chip U1 is connected to an output end of the pre-stage suppression circuit 31 through a first overvoltage signal negative terminal sampling resistor R13;
the eighth pin OSP of the control chip U1 is connected to the first overvoltage signal negative terminal sampling resistor R13 through the second overvoltage signal negative terminal sampling resistor R9;
an eighth pin OSP of the control chip U1 is connected to the cathode of a first diode D3 of the constant current control circuit through an overvoltage signal positive terminal sampling resistor R4, and the anode of the diode D3 is connected to the transmitting coil N1 through a capacitor C4;
the anode of the first diode D3 of the constant current control circuit is also connected to the cathode of a second diode D1 of the constant current control circuit, and the anode of a second diode D1 of the constant current control circuit is connected to the other end of the transmitting coil N1 through a resistor R11;
the connection part of the overvoltage signal positive terminal sampling resistor R4 and the constant current control circuit first diode D3 is connected to a sixth pin HV of the control chip U1 through a resistor R12;
the second pin RTT of the control chip U1 is grounded through an over-temperature protection setting resistor R6;
the third pin Ton of the control chip U1 is grounded through the frequency setting resistor R5;
the fourth pin HV of the control chip U1 is grounded through a pair of output current sampling resistors RS1 and RS2 which are connected in parallel;
the seventh pin GND of the control chip U1 is grounded.
Specifically, when the constant current control circuit 32 is turned off, the input voltage charges the capacitor C4 through the resistor R11 and the constant current control circuit second diode D1; when the constant current control circuit 32 is turned on, the second diode D1 of the constant current control circuit is turned off, the capacitor C4 discharges, the first diode D3 of the constant current control circuit is turned on, and the input voltage is filtered by the capacitor EC1 and then input to the fourth pin HV, the eighth pin OSP, and the first pin VS.
In a preferred embodiment, the rectifying-filtering circuit 34 includes:
the receiving coil N2 is used for coupling the primary side energy of the transmitting coil N1 and converting the primary side energy into voltage;
the anode of the rectifying diode D2 and the anode of the rectifying diode D2 are connected to the receiving coil N2, and the voltage output by the receiving coil is rectified and then output to the positive output end VO + of the rectifying and filtering circuit 34;
the two ends of the rectifier diode D2 are connected with an absorption capacitor C11 and an absorption resistor R21, and the absorption capacitor C11 and the absorption resistor R21 form an RC absorption circuit which is used for weakening the reverse peak voltage spike noise of the rectifier filter circuit 34 and improving the EMI suppression effect;
the other end of the receiving coil N2 is connected to the negative output end VO-of the rectifying and filtering circuit 34;
the positive output end VO + of the rectifying and filtering circuit 34 is connected with the negative output end VO-of the rectifying and filtering circuit 34 through a resistor R13 and a capacitor EC 2.
In a preferred embodiment, the ripple suppression circuit 35 includes:
the drain electrode of the field effect transistor Q1 and the drain electrode of the field effect transistor Q1 are connected to the positive output end VO + of the rectifying and filtering circuit 34;
the grid electrode of the field effect transistor Q1 is connected to the negative output end VO-of the rectifying and filtering circuit 35 through a current limiting resistor R10 and a filter capacitor EC2 in sequence;
the source of the field effect transistor Q1 is connected to the power driving end LED + of the light source driving circuit 36;
the grid and the source of the field effect transistor Q1 are connected through a group of parallel rectifier filter circuit first voltage stabilizing diodes Z2 and a bypass capacitor C11;
specifically, the rectifier filter circuit first voltage stabilizing diode Z2 is used for preventing reverse voltage from breaking down the field effect transistor Q1, and the bypass capacitor C11 is used for suppressing high-frequency noise, so that an EMI optimization effect is achieved.
The source electrode and the drain electrode of the field effect transistor Q1 are connected through a first resistor RJ0 of a rectifying and filtering circuit;
the junction of the current-limiting resistor R10 and the filter capacitor EC2 is connected to the drain of the field effect transistor Q1 through a second voltage stabilizing diode Z1 of the rectifying and filtering circuit in sequence, and a diode D4 of the rectifying and filtering circuit and a second resistor R11 of the rectifying and filtering circuit which are connected in parallel.
In a preferred embodiment, as shown in fig. 1, the lamp body 4 comprises:
the connecting wire 5 penetrates through the back shell of the lamp body and is connected with a light source arranged in the back shell of the lamp body;
the light source comprises a plurality of groups of low color temperature light sources and high color temperature light sources and is used for forming emergent light with different color temperatures under the control of the switch circuit;
the lamp body comprises a lamp body surface ring 41, wherein a light-emitting mask 42 is arranged in the middle of the lamp body surface ring 41, the lamp body surface ring 41 is matched with a lamp body back shell to form a closed structure, and a light source is arranged in the closed structure;
the outside of the lamp body back shell is provided with a fixing structure 43 for fixing the lamp body on an external structure.
The invention has the beneficial effects that: the power supply bin with the wiring function is arranged to protect the joint of the external cable and the power supply driving module, and the light emitting effect of the lamp body is adjusted through the power supply driving module, so that the lamp body can generate light rays with different color temperatures, the production cost is reduced, and the inventory pressure and the resource waste caused by the production of different down lamps according to the color temperatures in the prior art are avoided.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an integral type down lamp with power storehouse which characterized in that includes:
the power supply cabin is internally provided with a driving power supply module, and an external cable penetrates through a through hole on the surface of the power supply cabin and is connected to the driving power supply module;
the lamp body is connected to the driving power supply module through a connecting wire;
and a driving circuit is arranged in the driving power supply module and is used for controlling the lamp body to emit light.
2. An integral downlight according to claim 1 wherein the power supply compartment comprises:
a housing having a side surface provided with a plurality of removable side covers;
the side cover is used for forming the through hole after being removed, so that the external cable penetrates through the surface of the power supply bin and enters the interior of the power supply bin;
one side of the upper cover is connected with the shell through a connecting piece and rotates freely by taking the connecting piece as a shaft;
the other side of the shell opposite to the connecting piece is provided with a first end of a fastening device;
the other side of the upper cover opposite to the connecting piece is provided with a second end of a fastening device;
the first end of the fastening device and the second end of the fastening device are used for closing the upper cover on the shell.
3. An integrated downlight according to claim 2 wherein the drive power supply module comprises:
the circuit board is provided with the driving circuit;
the protective shell is wrapped outside the circuit board;
the protective shell is a cube, a pair of guide groove structures are arranged in the protective shell, and the circuit board is fixed in the protective shell through the guide groove structures;
and a switch is arranged on one side surface of the protective shell, and the switch is connected with the driving circuit and is used for controlling the lamp body to emit light.
4. An integrated downlight according to claim 1 wherein the drive circuit comprises:
a pre-stage suppression circuit connected to the external cable;
the constant current control circuit is connected with the output end of the preceding stage suppression circuit;
a charge absorption circuit is also arranged between the constant current control circuit and the preceding stage suppression circuit;
the rectification filter circuit is connected with the output end of the constant current control circuit;
the ripple suppression circuit is connected with the output end of the rectification filter circuit;
the output end of the ripple suppression circuit is connected to the light source driving circuit;
the other end of the light source driving circuit is connected with a switch circuit;
5. an integrated down lamp according to claim 4, wherein the switching circuit is a three-level switching circuit or a five-level switching circuit;
the light source driving circuit is provided with a power supply driving end, a high color temperature adjusting end and a low color temperature adjusting end;
the switch circuit controls the color temperature of the lamp body when the lamp body emits light through the high color temperature adjusting end and the low color temperature adjusting end.
6. An integrated downlight according to claim 5 wherein the three stage switching circuit comprises:
a first pin of the three-level switch is connected to the high color temperature adjusting end;
a second pin of the three-level switch is connected to the output end of the rectification filter circuit;
a third pin of the three-level switch is connected to an anode of a first diode of the three-level switch circuit;
the cathode of the first diode of the three-level switch circuit is connected to the high color temperature adjusting end through two groups of resistors connected in parallel, and the two groups of resistors connected in parallel comprise: the three-stage switching circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the first resistor and the second resistor are connected in series;
a fourth pin of the tertiary switch is connected to a cathode of a second diode of the tertiary switch circuit, and an anode of the second diode of the tertiary switch circuit is connected to an anode of a first diode of the tertiary switch circuit;
the fourth pin of the three-level switching circuit is also connected to the low color temperature regulating end;
7. an integrated downlight according to claim 5 wherein the five-level switching circuit comprises:
a first pin of the five-stage switch is connected to the high color temperature adjusting end;
the high color temperature adjusting end is connected to the anode of the first diode of the five-stage switching circuit;
the cathode of the first diode of the five-stage switch circuit is connected to the first resistor of the five-stage switch circuit;
the other end of the first resistor of the five-stage switching circuit is connected with the cathode of a second diode of the five-stage switching circuit;
the anode of a second diode of the five-stage switching circuit is connected to the low color temperature adjusting end;
the junction of the first resistor of the five-stage switch circuit and the cathode of the second diode of the five-stage switch circuit is taken as a first node;
a second pin of the five-stage switch is connected to the first node through a second resistor of the five-stage switch circuit and a third diode of the five-stage switch circuit in sequence;
the anode of a third diode of the five-stage switch circuit is connected with the first node;
the junction of the second pin of the five-level switch and the second resistor of the five-level switch circuit is connected to the cathode of the fourth diode of the five-level switch circuit, and the anode of the fourth diode of the five-level switch circuit is connected to the first pin of the five-level switch;
a third pin of the five-stage switch is connected to the output end of the rectification filter circuit;
a fourth pin of the five-stage switch is connected to the first node;
a fifth pin of the five-stage switch is connected to the first node through a third resistor of the five-stage switch circuit and a fifth diode of the five-stage switch circuit in sequence;
the anode of a fifth diode of the five-stage switching circuit is connected with the first node;
the junction of a fifth pin of the five-stage switch and a third resistor of the five-stage switch circuit is connected to the cathode of a sixth diode of the five-stage switch circuit, and the anode of the sixth diode of the five-stage switch circuit is connected to the low color temperature regulating end;
and a sixth pin of the five-stage switch is connected to the low color temperature adjusting end.
8. An integrated downlight according to claim 4 wherein the pre-stage suppression circuit comprises:
the input end of the common mode inductor is respectively connected with a live wire and a zero line of the external cable;
an overload protection device is further arranged at the joint of the common mode inductor and the live wire;
the input end of the differential mode inductor is connected to the output end of the common mode inductor;
the output end of the differential mode inductor is connected to a rectifier bridge, and the output end of the rectifier bridge is connected to an inductor;
the other end of the inductor is the output end of the preceding stage suppression circuit;
two ends of the inductor are grounded through a preceding stage first capacitor and a preceding stage second capacitor respectively;
the connection part of the inductor and the output end of the rectifier bridge is grounded through a surge protector.
9. An integrated downlight according to claim 5 wherein the ripple suppression circuit comprises:
the drain electrode of the field effect tube is connected to the positive output end of the rectification filter circuit;
the grid electrode of the field effect tube is connected to the negative output end of the rectification filter circuit sequentially through the current-limiting resistor and the filter capacitor;
the source electrode of the field effect transistor is connected to the power supply driving end of the light source driving circuit;
the grid electrode and the source electrode of the field effect transistor are connected with a bypass capacitor through a group of first voltage stabilizing diodes of the rectifying and filtering circuit in parallel connection;
the source electrode and the drain electrode of the field effect transistor are connected through a first resistor of the rectifying and filtering circuit;
and the junction of the current-limiting resistor and the filter capacitor is connected to the drain electrode of the field effect transistor sequentially through a second voltage stabilizing diode of the rectifying and filtering circuit, and the diode of the rectifying and filtering circuit and the second resistor of the rectifying and filtering circuit which are connected in parallel are connected to the drain electrode of the field effect transistor.
10. An integrated downlight according to claim 5 wherein the light body comprises:
the connecting wire penetrates through the lamp body back shell and is connected with a light source arranged in the lamp body back shell;
the light source comprises a plurality of groups of low color temperature light sources and high color temperature light sources and is used for forming emergent light with different color temperatures under the control of the switch circuit;
the lamp body surface ring is provided with a luminous mask in the middle, the lamp body surface ring and the lamp body back shell are matched to form a closed structure, and the light source is arranged in the closed structure;
the outer side of the lamp body back shell is provided with a fixing structure used for fixing the lamp body on an external structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932655.2A CN113966036A (en) | 2021-08-13 | 2021-08-13 | Integral type down lamp with power storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932655.2A CN113966036A (en) | 2021-08-13 | 2021-08-13 | Integral type down lamp with power storehouse |
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| Publication Number | Publication Date |
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| CN113966036A true CN113966036A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110932655.2A Pending CN113966036A (en) | 2021-08-13 | 2021-08-13 | Integral type down lamp with power storehouse |
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