CN210518935U - Lamp fitting - Google Patents
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- CN210518935U CN210518935U CN201920755531.XU CN201920755531U CN210518935U CN 210518935 U CN210518935 U CN 210518935U CN 201920755531 U CN201920755531 U CN 201920755531U CN 210518935 U CN210518935 U CN 210518935U
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Abstract
An embodiment of the utility model provides a lamp, include: the lamp comprises a power module, a control module, a load circuit and a lamp bead, wherein the load circuit comprises a switch module and a load, the switch module is connected with the load, the power module is respectively connected with the control module, the load circuit and the lamp bead, and the control module is also connected with the switch module; the control module is used for controlling the output power of the power supply module and controlling the state of the switch module to be a conducting state when the output power of the power supply module is the lowest starting power of the power supply module. The minimum brightness of the lamp is reduced.
Description
Technical Field
The embodiment of the utility model provides a relate to the photoelectric technology field, especially relate to a lamp.
Background
At present, the light-emitting brightness of a plurality of lamps is adjustable, that is, the light-emitting brightness of the lamps can be adjusted according to actual needs.
The lamp comprises a power module, a control module and a lamp bead. The power module can supply power to the lamp beads so that the lamp beads emit light. The control module can control the power of the power module to the lamp bead to adjust the brightness of the lamp bead, and further adjust the brightness of the lamp. However, the power module has the lowest starting power, that is, when the output power of the power module is smaller than the lowest starting power, the power module cannot be started to work, and therefore, the lowest brightness of the lamp bead is the brightness corresponding to the lowest starting power, which results in higher lowest brightness of the lamp.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a lamp has reduced the minimum luminous luminance of lamp.
In a first aspect, an embodiment of the present invention provides a lamp, including: the lamp comprises a power supply module, a control module, a load circuit and a lamp bead, wherein the load circuit comprises a switch module and a load, the switch module is connected with the load, wherein,
the power supply module is respectively connected with the control module, the load circuit and the lamp bead, and the control module is also connected with the switch module;
the control module is used for controlling the output power of the power supply module and controlling the state of the switch module to be a conducting state when the output power of the power supply module is the lowest starting power of the power supply module.
The embodiment of the utility model provides a lamp, include: the lamp comprises a power module, a control module, a load circuit and a lamp bead, wherein the load circuit comprises a switch module and a load, the switch module is connected with the load, the power module is respectively connected with the control module, the load circuit and the lamp bead, and the control module is also connected with the switch module; the control module is used for controlling the output power of the power supply module and controlling the state of the switch module to be a conducting state when the output power of the power supply module is the lowest starting power of the power supply module. In the process, when the control module detects that the output power of the power module is the lowest output power, the control module can control the state of the switch module to be in a conducting state, so that the load can play a shunting role, the current flowing through the lamp bead is reduced, and the brightness of the lamp bead is lowered, therefore, the lowest brightness of the lamp bead can be reduced, and the lowest brightness of the lamp can be reduced.
In a possible implementation manner, the output end of the power supply module is respectively connected with the load circuit and the lamp bead, and the load circuit is connected with the lamp bead in parallel.
In a possible embodiment, the luminaire further comprises an isolation device, wherein,
the isolation device is arranged between the control module and the switch module and used for isolating the control module from the switch module.
By arranging the isolation device in the lamp, the control module can be protected, and the control module is prevented from being damaged by high voltage in the switch module.
In one possible embodiment, the isolation device is an optocoupler.
In one possible embodiment, the switch module is a triode.
In one possible embodiment, the load is a resistor.
In one possible embodiment, the number of load circuits is greater than 1.
In a possible implementation manner, the control module is specifically configured to send a control signal to the switch module when the output power of the power supply module is the lowest starting power of the power supply module, where the control signal is used to control the switch module to be periodically turned on and off.
In one possible embodiment, the control signal is a pulse width modulation PWM signal.
In the process, the on-time of the control switch module can be realized by controlling the duty ratio of the PWM signal, and further the brightness of the control lamp bead is realized.
In one possible embodiment, the light fixture is a Light Emitting Diode (LED) lamp.
The embodiment of the utility model provides a lamp, include: the lamp comprises a power module, a control module, a load circuit and a lamp bead, wherein the load circuit comprises a switch module and a load, the switch module is connected with the load, the power module is respectively connected with the control module, the load circuit and the lamp bead, and the control module is also connected with the switch module; the control module is used for controlling the output power of the power supply module and controlling the state of the switch module to be a conducting state when the output power of the power supply module is the lowest starting power of the power supply module. In the process, when the control module detects that the output power of the power module is the lowest output power, the control module can control the state of the switch module to be in a conducting state, so that the load can play a shunting role, the current flowing through the lamp bead is reduced, and the brightness of the lamp bead is lowered, therefore, the lowest brightness of the lamp bead can be reduced, and the lowest brightness of the lamp can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a lamp provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of another lamp provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another lamp provided in an embodiment of the present invention;
fig. 4 is a schematic structural view of another lamp according to an embodiment of the present invention.
Description of reference numerals:
11: a power supply module;
12: a control module;
13: a load circuit;
131: a switch module;
132: a load;
14: a lamp bead;
15: and (6) isolating the devices.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a luminance adjustable of lamps and lanterns that relate, promptly, the user can adjust the luminous luminance of lamps and lanterns according to actual need. For example, a brightness adjusting button may be provided in the lamp, and the user may adjust the light emitting brightness of the lamp by using the brightness adjusting button as needed. The minimum light-emitting brightness of the lamp in the prior art is limited by the minimum starting power of the power supply module, so that the minimum light-emitting brightness of the lamp in the prior art is high. Therefore, the application provides a lamp to reduce the minimum brightness of the lamp.
The technical means shown in the present application will be described in detail below with reference to specific examples. It should be noted that the following embodiments may be combined with each other, and the description of the same or similar contents in different embodiments is not repeated.
Fig. 1 is a schematic structural view of a lamp provided in an embodiment of the present invention. Referring to fig. 1, the lamp 10 may include: the lamp comprises a power module 11, a control module 12, a load circuit 13 and a lamp bead 14, wherein the load circuit 13 comprises a switch module 131 and a load 132, the switch module 131 is connected with the load 132, the power module 11 is respectively connected with the control module 12, the load circuit 13 and the lamp bead 14, and the control module 12 is also connected with the switch module 131; the control module 12 is configured to control the output power of the power module 11, and control the state of the switch module 131 to be a conducting state when the output power of the power module 11 is the lowest starting power of the power module 11.
Optionally, the output end of the power module 11 is connected to the load circuit 13 and the lamp bead 14, and the load circuit 13 and the lamp bead 14 are connected in parallel. For example, the output terminal of the power supply module 11 may be connected to the switch module 131 and the load 132 in the load circuit 13, respectively.
Optionally, the power module 11 is further connected to a commercial power (for example, 220V ac), and the power module 11 may process (for example, step down, filter, etc.) the commercial power and supply power to the load circuit 13, the lamp bead 14, and the control module 12.
The power module 11 supplies power to the load circuit 13 and the lamp bead 14 at a voltage generally greater than the voltage supplying power to the control module 12. For example, the power supply voltage of the power module 11 to the load circuit 13 and the lamp bead 14 may be 40 volts (V), and the voltage of the power module 11 to the control module 12 may be 3.5V. When the power module 11 supplies power to the load circuit 13 and the lamp bead 14, the power module 11 is a constant current source, that is, the current output by the power module 11 to the load circuit 13 and the lamp bead 14 is constant.
Optionally, the control module 12 may obtain a brightness adjustment instruction, and control the output power of the power module 11 according to the brightness adjustment instruction.
For example, a rotation button may be provided in the lamp, and a user may rotate the rotation button to adjust the light emitting brightness of the lamp. After the user rotates the rotary button, the control module 12 may obtain a brightness adjustment instruction, where the brightness adjustment instruction may include a brightness gear value, and the control module 12 may determine a target brightness according to the brightness gear value and control the output power of the power module 11 according to the target brightness, where the higher the target brightness is, the higher the output power of the power module 11 is. For example, the control module 12 may output a first control signal to the power module 11, where the first control signal is used to control the output power of the power module 11, and for example, the first control signal may be a Pulse Width Modulation (PWM) signal.
For example, an environment detection module may be further disposed in the lamp, the environment detection module may detect an environment around the lamp, and generate a brightness adjustment instruction according to the detected environment parameter (e.g., environment brightness, etc.), where the brightness adjustment instruction may include a brightness gear value, and the control module 12 may determine a target brightness according to the brightness gear value, and control the output power of the power module 11 according to the target brightness, where the higher the target brightness is, the higher the output power of the power module 11 is.
The control module 12 may further obtain the output power of the power module 11, and control the state of the switch module 131 according to the output power of the power module 11, where the state of the switch module 131 is an on state or an off state.
When the control module 12 determines that the output power of the power module 11 is the lowest starting power of the power module 11, the control module 12 can control the state of the switch module 131 to be a conducting state, so that the load 132 can be shunted, the current supplied by the power module 11 to the lamp bead 14 is reduced, and the lowest light-emitting brightness of the lamp bead 14 is further reduced.
Alternatively, the switch module 131 may be a triode. The load 132 may be a resistor, which may also be an adjustable resistor. The lamp beads 14 may be LED lamp beads.
Wherein, the embodiment of the utility model provides a power module 11's output means, power module 11 is to the power of load circuit 13 and lamp pearl 14 output.
The minimum starting power refers to the lowest output power of the power module 11 when the power module 11 starts to operate, that is, when the output power of the power module 11 is greater than or equal to the minimum starting power, the power module 11 may start to operate. When the output power of the power module 11 is less than the minimum startup power, the power module 11 cannot start up.
When the control module 12 determines that the output power of the power module 11 is greater than the minimum starting power, the control module 12 may control the state of the switch module 131 to be an off state, or may control the state of the switch module 131 to be an on state. In order to save energy consumption, when the control module 12 determines that the output power of the power module 11 is greater than the minimum starting power, the control module 12 may control the state of the switch module 131 to be the off state.
Next, the operation of the lamp will be described.
After the lamp is powered on, the mains supply can supply power to the power module 11, and the power module 11 can process the mains supply to supply power to the control module 12, the load circuit 13 and the lamp bead 14. Wherein, the power that power module 11 supplied power to load circuit 13 and lamp pearl 14 is adjustable.
when the control module 12 determines that the output power of the power module 11 is greater than the minimum start power, the control module 12 controls the state of the switch module 131 to be the off state. In this case, the load circuit 13 is in the off state, so that the power module 11 cannot supply power to the load 132, so that the load 132 cannot consume power, thereby saving power consumption.
When the control module 12 determines that the output power of the power module 11 is equal to the minimum start power, the control module 12 controls the state of the switch module 131 to be the on state. Under this kind of condition, power module 11 can supply power to load 132, promptly, load 132 can play the reposition of redundant personnel effect, because power module 11 is the constant current source for the electric current of lamp pearl 14 that flows through diminishes, and then makes the luminance of lamp pearl 14 become low, like this, can realize reducing the minimum luminance of lamp pearl 14, and then reduces the minimum luminance of lamps and lanterns.
The embodiment of the utility model provides a lamp, include: the lamp comprises a power module 11, a control module 12, a load circuit 13 and a lamp bead 14, wherein the load circuit 13 comprises a switch module 131 and a load 132, the switch module 131 is connected with the load 132, the power module 11 is respectively connected with the control module 12, the load circuit 13 and the lamp bead 14, and the control module 12 is also connected with the switch module 131; the control module 12 is configured to control the output power of the power module 11, and control the state of the switch module 131 to be a conducting state when the output power of the power module 11 is the lowest starting power of the power module 11. In the above process, when the control module 12 detects that the output power of the power module 11 is the lowest output power, the control module 12 can control the state of the switch module 131 to be the conducting state, so that the load 132 can play a shunting role, the current flowing through the lamp bead 14 becomes smaller, and further the brightness of the lamp bead 14 becomes lower, thus the lowest brightness of the lamp bead 14 can be reduced, and further the lowest brightness of the lamp can be reduced.
On the basis of any of the above embodiments, since the power supply voltage from the power supply module 11 to the load circuit 13 and the lamp bead 14 is usually about 40V, and the power supply voltage from the power supply module 11 to the control module 12 is usually about 3.5V, in order to prevent the control module 12 from being damaged by the power supply voltage from the power supply module 11 to the load circuit 13 and the lamp bead 14, an isolation device 15 may be disposed between the control module 12 and the switch module 131. Next, the structure of the lamp in this case will be described with reference to the embodiment shown in fig. 2.
Fig. 2 is a schematic structural diagram of another lamp provided in the embodiment of the present invention. On the basis of the embodiment shown in fig. 1, please refer to fig. 2, the luminaire further includes an isolation device 15, and the isolation device 15 is disposed between the control module 12 and the switch module 131.
Wherein the isolation device 15 is used to isolate the control module 12 from the switch module 131. The isolation device 15 can isolate the optical-electrical signal at both ends thereof, for example, the optical-electrical signal at the switch module 131 at one end of the isolation device 15 does not affect the optical-electrical signal at the control module 12 at the other end of the isolation device 15.
The isolation device 15 may also pass through signals, for example, when the control module 12 sends a control signal to the isolation device 15, the control signal may be transmitted to the switch module 131 through the isolation device 15.
Optionally, the isolation device 15 is an optocoupler.
On the basis of any of the foregoing embodiments, optionally, the control module 12 is specifically configured to send a control signal to the switch module 131 when the output power of the power supply module 11 is the lowest starting power of the power supply module 11, where the control signal is used to control the switch module 131 to be turned on and off periodically.
Optionally, the control signal is a PWM signal.
For example, the control signal may control the duty ratio of the PWM signal to achieve control of the periodic turning on and off of the switching module 131. When the on-time of the switch module 131 is longer, the shunt of the load 132 is more, so that the brightness of the lamp bead 14 is lower, and when the on-time of the switch module 131 is shorter, the shunt of the load 132 is less, so that the brightness of the lamp bead 14 is not too low. That is, if the brightness of the lamp bead 14 is to be low, the on-time of the switch module 131 may be controlled to be long, and if the brightness of the lamp bead 14 is not to be low, the on-time of the switch module 131 may be controlled to be short.
In the process, the on-time of the switch module 131 can be controlled by controlling the duty ratio of the PWM signal, so as to control the brightness of the lamp bead 14.
In the embodiment shown in fig. 2, when the control module 12 detects that the output power of the power module 11 is the minimum output power, the control module 12 can control the state of the switch module 131 to be the on state, so that the load 132 can play a role of shunting, the current flowing through the lamp bead 14 becomes small, and further the brightness of the lamp bead 14 becomes low, thus the minimum brightness of the lamp bead 14 can be reduced, and further the minimum brightness of the lamp can be reduced. Further, by providing the isolation device 15, the control module 12 can be protected, and the control module 12 is prevented from being damaged by the high voltage in the switch module 131.
On the basis of any of the above embodiments, optionally, in order to facilitate more precise control of the brightness of the lamp bead 14, the number of the load circuits 13 may be greater than 1, and the structure of the lamp in this case is described below with reference to fig. 3.
Fig. 3 is a schematic structural diagram of another lamp provided in an embodiment of the present invention. In the embodiment shown in fig. 3, the switching module 131 is a transistor, the load 132 is a resistor, and the isolation device 15 is an optocoupler. Referring to fig. 3, the lamp includes two load circuits 13 and two isolation devices 15, two ends of each load circuit 13 are respectively connected to the power module 11, and the switch module 131 in the load circuit 13 is connected to the corresponding isolation device 15.
In the lamp shown in fig. 3, when the control module 12 detects that the output power of the power module 11 is greater than the minimum starting power, the control module 12 may control the switch modules 131 in the two load circuits 13 to be in the off state, so as to save energy consumption. When the control module 12 detects that the output power of the power module 11 is equal to the minimum starting power, the control module 12 may first control the switch module 131 in one of the load circuits 13 to be in a conducting state to reduce the minimum brightness of the lamp bead 14, and when the user continues to request to reduce the brightness of the lamp, the control module 12 may control the switch module 131 in the other load circuit 13 to be in a conducting state, so as to further reduce the minimum brightness of the lamp bead 14.
Optionally, the number of the optical couplers in the embodiment of fig. 3 may also be one, one end of the optical coupler is connected to the control module 12, and the other end of the optical coupler is connected to the switch modules 131 in the two load circuits 13, respectively.
It should be noted that, the control process of the control module 12 for any one of the load circuits 13 may refer to the above embodiments, and details are not described herein again.
It should be noted that fig. 3 illustrates a structure diagram of the lamp including two load circuits 13 by way of example only. Certainly, the lamp may further include 3 load circuits 13, 4 load circuits 13, and the like, and the structure thereof is similar to that of fig. 3, and details are not repeated here. In practical application process, can set up the number of load circuit 13 that includes in the lamps and lanterns according to actual need, the embodiment of the utility model provides a do not do specific limit to this.
In the embodiment shown in fig. 3, when the control module 12 detects that the output power of the power module 11 is the minimum output power, the control module 12 can control the state of the switch module 131 to be the on state, so that the load 132 can play a role of shunting, the current flowing through the lamp bead 14 becomes small, and further the brightness of the lamp bead 14 becomes low, thus the minimum brightness of the lamp bead 14 can be reduced, and further the minimum brightness of the lamp can be reduced. Further, by providing the isolation device 15, the control module 12 can be protected, and the control module 12 is prevented from being damaged by the high voltage in the switch module 131. Further, through set up a plurality of load circuit 13 in lamps and lanterns, can realize carrying out more meticulous regulation to the luminous luminance of lamp pearl 14.
On the basis of any of the above embodiments, optionally, the lamp may also be a color temperature lamp, an RGB lamp, or the like. For example, when the lamp is a color temperature lamp, the lamp includes two independently controlled lamp beads 14, and accordingly, the control of each lamp bead 14 can be controlled by adopting the structure shown in the above embodiment. When the lamp is an RGB lamp, the lamp includes three independently controlled lamp beads 14, and accordingly, the control of each lamp bead 14 can be controlled by adopting the structure shown in the above embodiment. In the following, the structure of the lamp is described as an example when the lamp is an RGB lamp, and specifically, please refer to the embodiment shown in fig. 4.
Fig. 4 is a schematic structural view of another lamp according to an embodiment of the present invention. In the embodiment shown in fig. 4, the switching module 131 is a transistor, the load 132 is a resistor, and the isolation device 15 is an optocoupler. Please refer to fig. 4, which includes three independently controlled lamp beads 14, the three independently controlled lamp beads 14 may be a lamp bead 14 corresponding to red light, a lamp bead 14 corresponding to green light, and a lamp bead 14 corresponding to blue light, respectively.
In the embodiment shown in fig. 4, the output powers of the power module 11 for supplying power to different lamp beads 14 may be the same or different. Each control module 12 can control the switch module 131 in its corresponding load circuit 13 and control the output power of the power module 11 to supply power to its corresponding load circuit 13 and lamp bead 14.
Optionally, the functions of the three control modules 12 may also be implemented by one control module 12, that is, one control module 12 controls the three load circuits 13 and the three lamp beads 14.
Optionally, the number of the optical couplers in the embodiment of fig. 4 may also be one, one end of the optical coupler is connected to the three control modules 12, and the other end of the optical coupler is connected to the switch modules 131 in the three load circuits 13.
In the embodiment shown in fig. 4, when the lamp includes a plurality of independently controlled lamp beads 14, for any one of the lamp beads 14, when the control module 12 detects that the output power from the power module 11 to the lamp bead 14 is the minimum output power, the control module 12 can control the state of the switch module 131 to be the on state, so that the load 132 can play a role of shunting, the current flowing through the lamp bead 14 becomes small, and further the brightness of the lamp bead 14 becomes low, thus, the minimum brightness of the lamp bead 14 can be reduced, and further the minimum brightness of the lamp can be reduced.
It should be noted that fig. 4 illustrates the structure of the lamp when the lamp is an RGB lamp in an exemplary manner, and when the lamp is a color temperature lamp, the structure of the lamp is similar to that of the lamp shown in the embodiment of fig. 4, and details are not repeated here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A light fixture, comprising: the lamp comprises a power supply module, a control module, a load circuit and a lamp bead, wherein the load circuit comprises a switch module and a load, the switch module is connected with the load, wherein,
the power supply module is respectively connected with the control module, the load circuit and the lamp bead, and the control module is also connected with the switch module;
the control module is used for controlling the output power of the power supply module and controlling the state of the switch module to be a conducting state when the output power of the power supply module is the lowest starting power of the power supply module.
2. The lamp of claim 1, wherein the output terminal of the power module is connected to the load circuit and the lamp bead respectively, and the load circuit and the lamp bead are connected in parallel.
3. A luminaire as recited in claim 1, further comprising an isolation device, wherein,
the isolation device is arranged between the control module and the switch module and used for isolating the control module from the switch module.
4. A light fixture as recited in claim 3, wherein the isolation device is an optocoupler.
5. A light fixture as recited in any one of claims 1-4, wherein the switch module is a triode.
6. A lamp as recited in any one of claims 1-4, wherein the load is a resistor.
7. A light fixture as recited in any one of claims 1-4, wherein the number of load circuits is greater than 1.
8. The lamp according to any one of claims 1 to 4, wherein the control module is specifically configured to send a control signal to the switch module when the output power of the power supply module is the lowest starting power of the power supply module, and the control signal is used to control the switch module to be turned on and off periodically.
9. The light fixture of claim 8 wherein the control signal is a Pulse Width Modulation (PWM) signal.
10. A light fixture as recited in any one of claims 1-4, wherein the light fixture is a Light Emitting Diode (LED) light.
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|---|---|---|---|
| CN201920755531.XU CN210518935U (en) | 2019-05-24 | 2019-05-24 | Lamp fitting |
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| CN201920755531.XU CN210518935U (en) | 2019-05-24 | 2019-05-24 | Lamp fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267390A (en) * | 2019-05-24 | 2019-09-20 | 生迪智慧科技有限公司 | Lamps and lanterns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267390A (en) * | 2019-05-24 | 2019-09-20 | 生迪智慧科技有限公司 | Lamps and lanterns |
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