CN217031074U - LED power with multiplexed output protection - Google Patents
LED power with multiplexed output protection Download PDFInfo
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- CN217031074U CN217031074U CN202123231302.4U CN202123231302U CN217031074U CN 217031074 U CN217031074 U CN 217031074U CN 202123231302 U CN202123231302 U CN 202123231302U CN 217031074 U CN217031074 U CN 217031074U
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Abstract
The utility model discloses an LED power supply with multi-path output protection, and relates to the technical field of lamp equipment. The LED lamp comprises a first protection circuit, wherein an output power device, an output power device driving circuit and a single chip microcomputer are connected to the first protection circuit; the lamp comprises a lamp holder and a lamp shade, wherein a plurality of limiting pins are elastically matched with the inner wall of the lamp shade, limiting grooves corresponding to the limiting pins are formed in the outer side of the lamp holder, one ends, close to the limiting grooves, of the limiting pins are of a four-quarter spherical structure, and the bottom surfaces of the limiting pins are horizontal planes. According to the utility model, the limiting pin is pushed to slide and bounce into the limiting groove by pushing the lampshade, so that the lampshade is convenient to install quickly, the limiting pin slides out of the limiting groove by rotating the curved surface at the side part of the limiting pin, so that the lampshade is convenient to disassemble quickly, and the lampshade is convenient to assemble and disassemble quickly.
Description
Technical Field
The utility model belongs to the technical field of lamp equipment, and particularly relates to an LED power supply with multi-output protection.
Background
Lamps are the general name of lighting tools and are divided into ceiling lamps, table lamps, wall lamps, floor lamps, ceiling lamps and the like. Refers to a device capable of transmitting light, distributing and changing the light distribution of a light source, and comprises all the parts except the light source, which are needed for fixing and protecting the light source, and the circuit accessories which are necessary for connecting with a power supply.
The lampshade on the existing ceiling lamp is mostly clamped on the lamp holder through the triangular clamping blocks, the lampshade is not easy to disassemble, and the lamp holder or the lamp tube is required to be disassembled for a long time at every replacement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an LED power supply with multi-output protection, and solves the technical problem that a lampshade on an existing ceiling lamp is mostly clamped on a lamp holder through a triangular clamping block and is not easy to detach.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
an LED power supply with multi-path output protection comprises a first protection circuit, wherein an output power device, an output power device driving circuit and a single chip microcomputer are connected to the first protection circuit, a sampling circuit is connected between the output power device and the single chip microcomputer, and one end of the output power device is connected with a lamp;
the lamp comprises a lamp holder and a lamp shade, wherein a plurality of limiting pins are elastically matched with the inner wall of the lamp shade, limiting grooves corresponding to the limiting pins are formed in the outer side of the lamp holder, one ends, close to the limiting grooves, of the limiting pins are of a four-quarter spherical structure, and the bottom surfaces of the limiting pins are horizontal planes.
Optionally, a second protection circuit is connected between the output power device and the sampling circuit.
Optionally, one end of the output power device, which is far away from the lamp, is connected with a main driver circuit.
Optionally, the lamp holder is of an inverted barrel structure, an inner flanging attached to the outer side of the lamp holder is arranged on the upper side of the lampshade, the upper side of the inner flanging is an inclined plane, and the diameter of the inner flanging is gradually increased from the upper end to the lower end.
Optionally, the plurality of limit pins are elastically arrayed in the lampshade, a guide cylinder corresponding to the limit pin is arranged in the lampshade, and the limit pin is in sliding fit in the guide cylinder.
Optionally, a spring located in the guide cylinder is arranged between the limit pin and the inner wall of the lampshade.
The embodiment of the utility model has the following beneficial effects:
according to the embodiment of the utility model, the limiting pin can be pushed to slide and bounce into the limiting groove by pushing the lampshade so as to facilitate the rapid installation of the lampshade, and the limiting pin can slide out of the limiting groove by rotating the curved surface at the side part of the limiting pin, so that the lampshade can be rapidly disassembled, and the lampshade can be rapidly assembled and disassembled.
Of course, it is not necessary for any product to practice the utility model to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a flow chart of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of one embodiment of the present invention;
fig. 4 is a schematic structural diagram of a in fig. 3.
Wherein the figures include the following reference numerals:
the lamp comprises a lamp 1, a lamp holder 101, a lamp shade 102, a limiting pin 103, a limiting groove 104 and a spring 105.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.
In order to keep the following description of the embodiments of the utility model clear and concise, a detailed description of known functions and known parts of the utility model is omitted.
Referring to fig. 1-4, in the present embodiment, an LED power supply with multi-output protection is provided, which includes: the lamp protection circuit comprises a first protection circuit, an output power device driving circuit and a single chip microcomputer are connected to the first protection circuit, a sampling circuit is connected between the output power device and the single chip microcomputer, and one end of the output power device is connected with a lamp 1;
the lamp 1 comprises a lamp holder 101 and a lamp shade 102, wherein a plurality of limiting pins 103 are elastically matched with the inner wall of the lamp shade 102, limiting grooves 104 corresponding to the limiting pins 103 are formed in the outer side of the lamp holder 101, one ends, close to the limiting grooves 104, of the limiting pins 103 are of a quarter-sphere structure, and the bottom surface of each limiting pin 103 is a horizontal plane.
The application of one aspect of the embodiment is as follows: the lampshade 102 is pushed to enable the limiting pin 103 to slide and pop into the limiting groove 104, so that the lampshade 102 is convenient to install quickly, the limiting pin 103 slides out of the limiting groove 104 by rotating the side curved surface of the limiting pin 103, and the lampshade 102 is convenient to disassemble quickly. It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.
The limiting pin 103 slides and pops into the limiting groove 104 by pushing the lampshade 102, so that the lampshade 102 is convenient to install quickly, the limiting pin 103 slides out of the limiting groove 104 by rotating the side curved surface of the limiting pin 103, the lampshade 102 is convenient to disassemble quickly, and the lampshade 102 is convenient to assemble and disassemble quickly.
A second protection circuit is connected between the output power device and the sampling circuit, and one end of the output power device, which is far away from the lamp 1, is connected with a main driver circuit.
Installing a first protection circuit: installing an output power device driving circuit at one side of a first protection circuit, and installing the first protection circuit at one side of an output power device; step three, installing a singlechip circuit: the singlechip is arranged on one side of the first protection circuit; step four, installing a sampling circuit: installing a sampling circuit at one side of the power device, installing the sampling circuit at one side of the singlechip, and installing the sampling circuit at one side of the second protection circuit; step five, installing a main circuit of a driver: the main driver circuit is mounted on one side of the output power device, and the lamp 1 is mounted on one side of the output power device.
When one output channel is in short-circuit output, the sampling circuit transmits a detected instantaneous peak current sampling signal to the second protection circuit, and the second protection circuit pulls down a driving signal of an output power device after receiving the sampling signal, so that the instantaneous peak current is reduced, and the probability of damage of the output power device is reduced; meanwhile, the sampling circuit transmits a detected instantaneous peak current sampling signal to the single chip microcomputer, the single chip microcomputer starts the first protection circuit after receiving the short-circuit instantaneous peak current sampling signal, the first protection circuit cuts off a driving signal of the output power device, so that the output of the power device is cut off, the protection purpose is achieved, the LED driving power supply is powered on after being powered off, the normal state is recovered, if the output is still in a short-circuit fault state after being powered on, the steps are repeated, and the output of the LED power supply enters the protection state again until the short-circuit fault is removed.
When two, two or N output channels are in short circuit output, the sampling circuit of each channel transmits the detected instantaneous peak current sampling signal to the second protection circuit of each channel, and after the second protection circuit of each channel receives the sampling signal, the driving signal of the output power device of each channel is pulled down, so that the instantaneous peak current of each channel is reduced, and the damage probability of the output power device is reduced; meanwhile, the sampling circuits of all channels transmit detected instantaneous peak current sampling signals to the single chip microcomputer, the single chip microcomputer starts the first protection circuits of all channels after receiving the short-circuit instantaneous peak current sampling signals of all channels, the first protection circuits of all channels cut off driving signals of all channel output power devices, and therefore output of the power devices of all channels is cut off, the protection purpose is achieved, the LED driving power supply is powered on after being powered off, the normal state is recovered, if the output is still in the short-circuit fault state after being powered on, the steps are repeated, and the output of the LED power supply enters the protection state again until the short-circuit fault is removed.
Thirdly, similarly, the method is also suitable for overload protection of each channel, when two or one output channel is in overload output, the sampling circuit of each channel transmits the detected overload current sampling signal to the second protection circuit of each channel, and after the second protection circuit of each channel receives the sampling signal, the driving signal of the output power device of each channel is pulled down, so that the overload current of each channel is reduced; meanwhile, the sampling circuits of all channels transmit detected overload current sampling signals to the single chip microcomputer, the single chip microcomputer starts the first protection circuits of all channels after receiving the overload current sampling signals of all channels, the first protection circuits of all channels cut off driving signals of output power devices of all channels, and therefore output of the power devices of all channels is cut off, the protection purpose is achieved, the LED driving power supply is powered on after being powered off, the normal state is recovered, if the output is still in an overload fault state after being powered on, the steps are repeated, and the output of the LED power supply enters the protection state again until the overload fault is relieved.
And fourthly, when any one or more output channels are in short circuit or overload fault, other normal output channels are not influenced.
Fifthly, the sampling singlechip digital control circuit can randomly change the working mode of protection according to the protection requirement, such as hiccup, blocking and the like, and is flexible and free
The lamp stand 101 of this embodiment is the inverted barrel structure, and the lamp shade 102 upside is equipped with the inside flanging of laminating with the lamp stand 101 outside, and the inside flanging upside is the inclined plane, and the diameter of inside flanging is crescent from the upper end to the lower extreme, is convenient for reduce lamp stand 101 and lamp shade 102's use material, reduction in production cost.
In the embodiment, the plurality of limit pins 103 are elastically arrayed in the lampshade 102, the guide cylinder 9 corresponding to the limit pins 103 is arranged in the lampshade 102, the limit pins 103 are in sliding fit in the guide cylinder 9, and the spring 105 positioned in the guide cylinder 9 is arranged between the limit pins 103 and the inner wall of the lampshade 102, so that the stability of elastic sliding is improved.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.
In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (6)
1. An LED power supply with multiplexed output protection, comprising: the device comprises a first protection circuit, an output power device driving circuit and a single chip microcomputer are connected to the first protection circuit, a sampling circuit is connected between the output power device and the single chip microcomputer, and one end of the output power device is connected with a lamp (1);
the lamp (1) comprises a lamp holder (101) and a lamp shade (102), wherein a plurality of limiting pins (103) are elastically matched with the inner wall of the lamp shade (102), limiting grooves (104) corresponding to the limiting pins (103) are formed in the outer side of the lamp holder (101), one ends, close to the limiting grooves (104), of the limiting pins (103) are of a quarter-sphere structure, and the bottom surface of each limiting pin (103) is a horizontal plane.
2. The LED power supply with multi-output protection as claimed in claim 1, wherein a second protection circuit is connected between the output power device and the sampling circuit.
3. An LED power supply with multiple output protection as claimed in claim 1, wherein the end of the output power device away from the lamp (1) is connected to a main driver circuit.
4. The LED power supply with the multi-output protection function as claimed in claim 1, wherein the lamp holder (101) is of an inverted barrel structure, an inner flange attached to the outer side of the lamp holder (101) is arranged on the upper side of the lamp shade (102), the upper side of the inner flange is an inclined plane, and the diameter of the inner flange is gradually increased from the upper end to the lower end.
5. The LED power supply with multi-output protection as claimed in claim 1, wherein a plurality of limit pins (103) are elastically arrayed in the lamp housing (102), guide cylinders (9) corresponding to the limit pins (103) are arranged in the lamp housing (102), and the limit pins (103) are slidably fitted in the guide cylinders (9).
6. The LED power supply with the multi-output protection function as claimed in claim 5, wherein a spring (105) located in the guide cylinder (9) is arranged between the limiting pin (103) and the inner wall of the lampshade (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123231302.4U CN217031074U (en) | 2021-12-22 | 2021-12-22 | LED power with multiplexed output protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123231302.4U CN217031074U (en) | 2021-12-22 | 2021-12-22 | LED power with multiplexed output protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217031074U true CN217031074U (en) | 2022-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123231302.4U Active CN217031074U (en) | 2021-12-22 | 2021-12-22 | LED power with multiplexed output protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217031074U (en) |
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2021
- 2021-12-22 CN CN202123231302.4U patent/CN217031074U/en active Active
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