Lamp and lighting device

Abstract

The application discloses a lamp, comprising a controller and a driving power supply electrically connected, the controller comprising an MCU control unit; at least one first light emitting component and the controller are electrically connected, the first light emitting component comprising at least one first lamp plate and at least one second lamp plate, the color temperature of the first lamp plate is lower than the color temperature of the second lamp plate, the starting current of the first lamp plate is less than the starting current of the second lamp plate; at least one second light emitting component and the controller are electrically connected, the second light emitting component comprising at least one third lamp plate and at least one fourth lamp plate, the color temperature of the third lamp plate is lower than the color temperature of the fourth lamp plate, the starting current of the third lamp plate is less than the starting current of the fourth lamp plate. This lighting change mode can be consistent with the color temperature value change trend of the black body curve, so that the color temperature of the lamp can be accurately controlled, and the lamp can emit light with suitable color temperature when the user is in different use scenarios such as daytime and night, so that the user's health lighting needs can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the lighting field, in particular to a lamp and a lighting device. BACKGROUND

[0002] Color temperature is a measure of the color content of light. In theory, the black body temperature refers to the color presented by the absolute black body after being heated from absolute zero (-273℃). The black body gradually changes from black to red, yellow, white, and finally blue when heated. When heated to a certain temperature, the spectral composition of the light emitted by the black body is called the color temperature at this temperature, and the unit is "K" (Kelvin). If the light emitted by a light source contains the same spectral composition as the light emitted by a black body at a certain temperature, it is called a K color temperature. For example, the color of the light emitted by a 100W bulb is the same as that of an absolute black body at 2527℃, so the color temperature of the light emitted by this bulb is: (2527+273)K = 2800K.

[0003] At present, more and more lamps on the market have the function of adjusting color temperature, so as to meet the flexible adjustment of color temperature by users in different use scenarios, reduce or even eliminate the harm to the human eye caused by incorrect light, for example, people usually need higher color temperature when working and studying in the daytime, and the color temperature of the lamp is generally in the range of 5000-6000K, but when working and studying at night, the color temperature of the lamp is required to be not more than 4000K. The color temperature adjustment mode of the lamp on the market is to adjust the combination of a group of high color temperature and a group of low color temperature light emitters according to the duty cycle, but the mixed light emitted by the lamp after adjustment cannot be the same as or consistent with the color temperature value of the black body curve, and the precise control of the color temperature cannot be realized, which is difficult to meet the needs of users for healthy lighting. SUMMARY

[0004] Therefore, the present application provides a lamp and a lighting device to solve the problem that the color temperature cannot be precisely controlled in the prior art, and it is difficult to meet the needs of users for healthy lighting.

[0005] To achieve one or part or all of the above purposes or other purposes, the present application provides a lamp, which comprises:

[0006] a driving power supply;

[0007] a controller, which is electrically connected with the driving power supply, and comprises an MCU control unit, which is used to control the size of the output branch current;

[0008] At least one first light-emitting component, electrically connected to the controller, the first light-emitting component comprising at least one first lamp board and at least one second lamp board, the color temperature of the first lamp board being lower than the color temperature of the second lamp board, and the starting current of the first lamp board being less than the starting current of the second lamp board; and

[0009] At least one second light-emitting component is electrically connected to the controller. The second light-emitting component includes at least one third lamp board and at least one fourth lamp board. The color temperature of the third lamp board is lower than that of the fourth lamp board, and the starting current of the third lamp board is less than that of the fourth lamp board.

[0010] In one embodiment, the color temperature of the second lamp panel is lower than that of the third lamp panel.

[0011] In one embodiment, the color temperature of the second lamp panel is the same as or nearly the same as the color temperature of the third lamp panel.

[0012] In one embodiment, the first lamp panel is provided with at least two first light emitters, which are connected in series, and the second lamp panel is provided with at least two second light emitters, which are connected in series; wherein the number of first light emitters is less than the number of second light emitters.

[0013] In one embodiment, the first light-emitting component further includes a first resistor, which is connected in series with all the first light-emitting elements.

[0014] In one embodiment, the third lamp board is provided with at least two third light emitters, which are connected in series, and the fourth lamp board is provided with at least two fourth light emitters, which are connected in series; wherein the number of third light emitters is less than the number of fourth light emitters.

[0015] In one embodiment, the second light-emitting component further includes a second resistor, which is connected in series with all of the third light-emitting elements.

[0016] In one embodiment, the controller further includes a wireless communication unit for interacting with peripheral wireless control devices.

[0017] In one embodiment, the first light-emitting component and the second light-emitting component can be controlled to emit light independently or synchronously.

[0018] A lighting device comprising a lamp as described above.

[0019] Implementing the embodiments of the present invention will have the following beneficial effects:

[0020] When the lamps in the above scheme are working, the driving power supply outputs operating current to the controller. The MCU control unit in the controller can adjust the magnitude of the output current of several branches, that is, it can adjust the magnitude of the current output to at least one first light-emitting component and at least one second light-emitting component. Since the color temperature of the first lamp board is lower than that of the second lamp board, and the color temperature of the third lamp board is lower than that of the fourth lamp board, and the starting current of the first lamp board is less than that of the second lamp board, and the starting current of the third lamp board is less than that of the fourth lamp board, the first and second lamp boards will light up first. As the current increases, the third and fourth lamp boards will gradually light up. This can form the effect of the first and second lamp boards and the third and fourth lamp boards gradually lighting up according to a certain pattern and achieving the corresponding different color temperatures. This lighting change mode can be consistent with the color temperature value change trend of the blackbody curve, thereby achieving precise control of the color temperature of the lamps. This allows the lamps to emit light with a suitable color temperature in different usage scenarios such as daytime and nighttime, meeting the user's needs for healthy lighting. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] in:

[0023] Figure 1 This is a circuit diagram of the lamp described in this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Driving power supply; 20. Controller; 30. First light-emitting component; 31. First lamp board; 32. Second lamp board; 33. First light-emitting body; 34. First resistor; 35. Second light-emitting body; 40. Second light-emitting component; 41. Third lamp board; 42. Fourth lamp board; 43. Third light-emitting body; 44. Second resistor; 45. Fourth light-emitting body. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In the description of this invention, it should 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] like Figure 1 As shown, a lamp is provided in one embodiment, including a driving power supply 10, a controller 20, at least one first light-emitting component 30 and at least one second light-emitting component 40.

[0031] The driving power supply 10 can be a conventional AC-DC switching power supply, or an ultrasonic power supply, etc., in other embodiments.

[0032] The AC-DC switching power supply has an AC+ input interface and an AC- input interface to facilitate connection of positive and negative mains cables or for convenient charging. In addition, the AC-DC switching power supply will also have a DC+ output interface and a DC- output interface, which, after high-voltage rectification and filtering, produce a high-voltage DC voltage to provide one or more stable DC voltages at the output of the DC / DC converter for use by electrical devices (such as the first light-emitting component 30 and the second light-emitting component 40 in this application).

[0033] The controller 20 is electrically connected to the drive power supply 10. The controller 20 includes an MCU control unit, which is used to regulate the magnitude of the output current in several branches.

[0034] A microcontroller unit (MCU), also known as a single-chip microcomputer or microcontroller, is a chip-level computer that integrates a central processing unit (CPU) with a reduced frequency and specifications, along with peripheral interfaces such as memory, timer, USB, A / D converter, UART, PLC, DMA, and even LCD driver circuitry, onto a single chip. This allows for different combinations of control for various applications.

[0035] Please see Figure 1 In this embodiment, at least one first light-emitting component 30 is electrically connected to the controller 20. The first light-emitting component 30 includes at least one first lamp board 31 and at least one second lamp board 32. The color temperature of the first lamp board 31 is lower than that of the second lamp board 32, and the starting current of the first lamp board 31 is less than that of the second lamp board 32. At least one second light-emitting component 40 is electrically connected to the controller 20. The second light-emitting component 40 includes at least one third lamp board 41 and at least one fourth lamp board 42. The color temperature of the third lamp board 41 is lower than that of the fourth lamp board 42, and the starting current of the third lamp board 41 is less than that of the fourth lamp board 42.

[0036] Implementing the embodiments of the present invention will have the following beneficial effects: When the lamp in the above solution is working, the driving power supply 10 outputs working current to the controller 20. The MCU control unit in the controller 20 can adjust the magnitude of the output current of several branches, that is, it can adjust the magnitude of the current output to at least one first light-emitting component 30 and at least one second light-emitting component 40. Furthermore, since the color temperature of the first lamp board 31 is lower than that of the second lamp board 32, and the color temperature of the third lamp board 41 is lower than that of the fourth lamp board 42, and at the same time, the starting current of the first lamp board 31 is less than that of the second lamp board 32, and the starting current of the third lamp board 41 is less than that of the fourth lamp board 42, the starting current of the first lamp board 31 is less than that of the second lamp board 32, and the starting current of the third lamp board 41 is less than that of the fourth lamp board 42. With a starting current of 42, the first lamp panel 31 and the second lamp panel 32 will light up first. As the current increases, the third lamp panel 41 and the fourth lamp panel 42 will gradually light up. This allows the first lamp panel 31 and the second lamp panel 32, as well as the third lamp panel 41 and the fourth lamp panel 42, to gradually light up according to a certain pattern and achieve the effect of different color temperatures. This lighting change method can be consistent with the color temperature value change trend of the blackbody curve, thereby achieving precise control of the color temperature of the lamp. This ensures that the lamp emits light with a suitable color temperature when the user is in different usage scenarios such as daytime and nighttime, meeting the user's need for healthy lighting.

[0037] Based on the above embodiment, the color temperature of the second lamp panel 32 is lower than that of the third lamp panel 41. Thus, the color temperatures of the first lamp panel 31, second lamp panel 32, third lamp panel 41, and fourth lamp panel 42 form a gradient from low to high, meaning the fourth lamp panel 42 has the highest color temperature. After all four lamp panels are powered on and lit normally, the light emitted by them gradually transitions from a cool tone to a warm tone, thus more closely resembling the color temperature variation trend of the blackbody curve. This makes the lighting more like natural light, better protecting the user's eyesight and meeting the needs of healthy lighting.

[0038] Optionally, the color temperature of the second lamp panel 32 is the same as or close to the color temperature of the third lamp panel 41.

[0039] In other words, in actual design, the smaller the color temperature difference between the second lamp panel 32 and the third lamp panel 41, the better; ideally, they should be the same value. For example, if the luminaire uses a dimming range of 2700-5700K, the color temperature of the first lamp panel 31 should be 2700K, the color temperature of the second lamp panel 32 3500K, the color temperature of the third lamp panel 41 3500K, and the color temperature of the fourth lamp panel 42 5700K. This makes it easier to adjust the color temperature along the color coordinates of the blackbody curve during the color temperature adjustment process.

[0040] According to actual usage requirements, the first light-emitting component 30 and the second light-emitting component 40 can be independently controlled to emit light or emit light synchronously by setting the corresponding program or command for the lamps.

[0041] Please see Figure 1In one embodiment, at least two first light emitters 33 are provided on the first light panel 31, and the at least two first light emitters 33 are connected in series. At least two second light emitters 35 are provided on the second light panel 32, and the at least two second light emitters 35 are connected in series.

[0042] At least two first light-emitting elements 33 and at least two second light-emitting elements 35 are arranged in series on the first light panel 31 and the second light panel 32, respectively. When powered on, all the first light-emitting elements 33 and all the second light-emitting elements 35 are lit at the same time, which can increase the brightness and intensity of light illumination, increase the light-emitting area, and obtain a better lighting effect.

[0043] The number of first light-emitting bodies 33 is less than the number of second light-emitting bodies 35. That is, the amount of light emitted by the first light panel 31 is generally less than (or weaker than) the amount of light emitted by the second light panel 32, thereby creating a transitional change in light intensity from weak to strong and from dark to bright.

[0044] Furthermore, the first light-emitting component 30 also includes a first resistor 34, which is connected in series with all the first light-emitting elements 33. The first resistor 34 can act as a voltage divider, thereby changing the voltage and current of the first lamp panel 31.

[0045] In another embodiment, at least two third light emitters 43 are provided on the third light panel 41, and the at least two third light emitters 43 are connected in series. At least two fourth light emitters 45 are provided on the fourth light panel 42, and the at least two fourth light emitters 45 are connected in series.

[0046] At least two third light-emitting elements 43 and at least two fourth light-emitting elements 45 are arranged in series on the third light panel 41 and the fourth light panel 42, respectively. When powered on, all the third light-emitting elements 43 and all the fourth light-emitting elements 45 are lit at the same time, which can increase the brightness and intensity of light illumination, increase the light-emitting area, and obtain a better lighting effect.

[0047] The number of third light-emitting bodies 43 is less than the number of fourth light-emitting bodies 45. That is, the amount of light emitted by the third light panel 41 is generally less (or weaker) than the amount of light emitted by the fourth light panel 42, thus forming a transitional change in light intensity from weak to strong and from dark to bright.

[0048] Furthermore, the second light-emitting component 40 also includes a second resistor 44, which is connected in series with all the third light-emitting elements 43. The second resistor 44 can act as a voltage divider, thereby changing the voltage and current of the third lamp board 41.

[0049] It should be noted that the aforementioned first resistor 34 and second resistor 44 can be provided in multiples. When two or more are used, they are installed in series in the corresponding circuits of the first lamp board 31 and the third lamp board 41. Furthermore, each first resistor 34 and each second resistor 44 can be of the same or different models, depending on actual needs; no special restrictions are imposed here.

[0050] Furthermore, to facilitate remote control of the lighting effects of the lamps by users, in one embodiment, the controller 20 also includes a wireless communication unit for exchanging information with peripheral wireless control devices. For example, the wireless control device can be a remote control, an app, etc.

[0051] The first light-emitting body 33, the second light-emitting body 35, the third light-emitting body 43 and the fourth light-emitting body 45 mentioned above can be LED beads, specifically any one of the following light-emitting devices: SMD LED beads, COB LED beads, MicroLED, MiniLED, OLED, etc.

[0052] In addition to the above, this application also protects a lighting device that includes a luminaire as described in any of the above embodiments.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A lamp, characterized in that, include: Drive power supply; A controller, electrically connected to the drive power supply, the controller including an MCU control unit, the MCU control unit being used to regulate the magnitude of several branch currents of the output; At least one first light-emitting component, the first light-emitting component being electrically connected to the controller, the first light-emitting component including at least one first lamp board and at least one second lamp board, the color temperature of the first lamp board being lower than the color temperature of the second lamp board, and the starting current of the first lamp board being less than the starting current of the second lamp board; as well as At least one second light-emitting component is electrically connected to the controller. The second light-emitting component includes at least one third lamp board and at least one fourth lamp board. The color temperature of the third lamp board is lower than that of the fourth lamp board, and the starting current of the third lamp board is less than that of the fourth lamp board. The first lamp panel is provided with at least two first light-emitting elements, which are connected in series; the second lamp panel is provided with at least two second light-emitting elements, which are connected in series; wherein the number of first light-emitting elements is less than the number of second light-emitting elements. The color temperature of the second lamp panel is lower than that of the third lamp panel; The first light-emitting component further includes a first resistor, which is connected in series with all the first light-emitting elements.

2. The lamp as described in claim 1, characterized in that, The color temperature of the second lamp panel is the same as or close to the color temperature of the third lamp panel.

3. The lamp as described in claim 1, characterized in that, The third lamp board is provided with at least two third light emitters, and the at least two third light emitters are connected in series. The fourth lamp board is provided with at least two fourth light emitters, and the at least two fourth light emitters are connected in series. The number of third light emitters is less than the number of fourth light emitters.

4. The lamp as described in claim 3, characterized in that, The second light-emitting component also includes a second resistor, which is connected in series with all of the third light-emitting elements.

5. The lamp as described in claim 1, characterized in that, The controller also includes a wireless communication unit, which is used to interact with peripheral wireless control devices.

6. The lamp as described in claim 1, characterized in that, The first light-emitting component and the second light-emitting component can be controlled to emit light independently or synchronously.

7. A lighting device, characterized in that, Including the luminaire as described in any one of claims 1 to 6.

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