A switching LED module and LED lamp

Abstract

The application provides a switching type LED module and LED lamp, and belongs to the field of LED lighting disinfection. The LED lamp comprises: an ultraviolet light emitter comprising a P end, an N end and a PN junction therebetween, the P end and the N end being connected with pins through wires respectively; at least one lighting light emitter comprising a P end, an N end and a PN junction therebetween, the P end and the N end also being connected with pins through wires respectively, and the lighting light emitter and the ultraviolet light emitter being connected with pins on the same side and having different end properties. The switching type LED module comprises: a lifting plate vertically moving, LED lamps being arranged in an array on the upper surface of the lifting plate, and the pins vertically penetrating to the lower surface of the lifting plate; a rotating disc, the number of the rotating disc matching the number of the LED lamps, the upper surface of the rotating disc being provided with two power supply seats, and the two power supply seats being arranged in cooperation with the pins respectively. The application can realize arbitrary switching between lighting light and ultraviolet light of the LED module, can be switched to the lighting mode when the ultraviolet light is not needed for disinfection, increases the application scene of the ultraviolet LED lamp, and saves the disinfection and lighting cost.

Description

Technical Field

[0001] This application belongs to the field of LED lighting disinfection, specifically related to a switchable LED module and an ultraviolet LED lamp. Background Technology

[0002] Light-emitting diodes (LEDs) are commonly used light-emitting components with wide applications in the lighting field. Their light-emitting principle involves the release of energy through the recombination of electrons and holes within a semiconductor. Like ordinary diodes, LEDs have a PN junction, which exhibits unidirectional conductivity. When a forward voltage is applied across the semiconductor, holes injected from the P-region into the N-region and electrons injected from the N-region into the P-region recombine with electrons in the N-region and holes in the P-region within a few micrometers of the PN junction. This recombination releases energy. While ordinary diodes release energy through heat dissipation, LEDs release energy by emitting fluorescence. The materials of the semiconductor within the diode determine whether it emits light, as well as the wavelength and color of the emitted light.

[0003] Ultraviolet (UV) sterilization is a common disinfection method. Its principle is based on the ability of UV light of a specific wavelength to destroy the molecular structure of DNA or RNA in microbial cells, causing vegetative / regenerative cell death in bacteria, fungi, and other microorganisms, thus achieving disinfection. Common UV sterilization lamps include UV mercury lamps and UV LED lamps. UV LED lamps generally use aluminum nitride as the semiconductor material, and they are generally more energy-efficient and environmentally friendly than UV mercury lamps. Furthermore, UV LED lamps are safer and more reliable; mercury lamps leak heavy metals when damaged, while UV LEDs do not contain heavy metals.

[0004] Currently, most common ultraviolet LED lamps are manufactured using the same construction method as ordinary LED lighting lamps, and they can only emit ultraviolet light with a single peak wavelength. In environments such as schools and hospitals that require regular disinfection, both ultraviolet LED lighting modules and ordinary lighting lamps are generally required, which is more expensive. Furthermore, the switches for the two are different, and it is not easy to notice whether the ultraviolet LED lamp is off when the lighting lamp is on, which can easily cause ultraviolet burns to people. Summary of the Invention

[0005] To address the aforementioned deficiencies in the prior art, this application provides a switchable LED module and LED lamp that allows the LED module to switch arbitrarily between illumination light and ultraviolet light. When ultraviolet disinfection is not required, it can be switched to illumination mode, increasing the applicable scenarios for ultraviolet LED lamps and saving disinfection and lighting costs.

[0006] To achieve the above objectives, the present invention employs the following techniques:

[0007] An LED light, comprising:

[0008] An ultraviolet light emitter includes a P-terminal, an N-terminal, and a PN junction located therebetween. The P-terminal and N-terminal of the ultraviolet light emitter are respectively connected to pins via wires.

[0009] At least one illumination source includes a P-terminal, an N-terminal, and a PN junction located therebetween. The P-terminal and N-terminal of the illumination source are also connected to pins via wires. The two ends of the pins connected to the illumination source and the ultraviolet light source on the same side have different properties. That is, if the P-terminal / N-terminal of the ultraviolet light source is connected to a pin on one side, then that pin is connected to the N-terminal / P-terminal of the illumination source.

[0010] Furthermore, the LED light also includes a base, pins are located on the base and extend out of the base, and a heat sink is provided on the base, with the ultraviolet light emitter and the illumination light emitter located on the heat sink.

[0011] Furthermore, the base is also provided with an annular groove, on which a lens is fitted, and both the ultraviolet light emitter and the illumination light emitter are located inside the lens.

[0012] A switchable LED module includes the aforementioned LED lights, as well as a lifting plate and a turntable;

[0013] The lifting plate is set to move vertically, and LED lights are arranged in an array on the upper surface of the lifting plate, with pins extending vertically to the lower surface of the lifting plate;

[0014] The turntables are set to rotate around their own central axis, and their number matches the number of LEDs. The upper surface of the turntables is equipped with two power supply sockets, which are respectively set to cooperate with the two pins of the corresponding LEDs.

[0015] Furthermore, the LED module also includes an installation chamber with an open upper end. The horizontal shape of the lifting plate matches the upper opening of the installation chamber, and a cylinder is vertically installed inside the installation chamber, with the cylinder's drive shaft connected to the lifting plate.

[0016] Furthermore, a rotating groove is provided on the lower surface of the turntable, and a support platform is provided on the bottom surface of the installation chamber. Two arc plates are vertically provided on the upper surface of the support platform, and the arc plates slide in conjunction with the rotating groove.

[0017] Furthermore, a rotating seat is connected to the lower surface of the turntable, and a rotating head is rotatably connected to the lower surface of the rotating seat. The rotating seats, which are arranged in an array along the width or length direction of the lifting plate and are located on the same straight line, are equipped with the same driving rod. When the turntable rotates, the driving rod does not contact the arc plate.

[0018] Furthermore, a first rotating ring is provided on the lower surface of the turntable located at one end of the drive rod. A rotating belt is rotatably sleeved on the first rotating ring, and the rotating belt is also rotatably sleeved on a second rotating ring. The lower end of the second rotating ring is coaxially connected to the drive shaft of a rotating motor, and the rotating motor is located on the bottom surface of the mounting chamber.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This LED lamp contains two types of semiconductors: one for emitting ultraviolet light and the other for providing illumination. The P and N terminals of the two semiconductors are inverted. By utilizing the unidirectional conductivity of semiconductors, switching between ultraviolet light and illumination can be achieved simply by switching the polarity of the two terminals. This is simple and easy to use, saves on disinfection and lighting costs, and improves the safety of LED lamp disinfection.

[0021] 2. The LED lights are powered by a rotating turntable and a vertically moving lifting plate, which makes it easier to heat up and maintain the LED lights than ordinary PCB boards, and the circuit is less likely to burn out when the motor switches. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a switching LED module according to an embodiment of this application.

[0023] Figure 2 This is a partial cross-sectional perspective view of an LED lamp according to an embodiment of this application.

[0024] Figure 3 This is a partial cross-sectional perspective view of the switching LED module after the lifting plate is raised, according to an embodiment of this application.

[0025] Figure 4 This is an exploded structural diagram of the turntable, support platform, rotating motor, first rotating ring, second rotating ring, and rotating belt of the switching LED module according to an embodiment of this application.

[0026] Figure 5 This is an exploded structural diagram of the rotating slot, rotating base, and rotating head of the switching LED module according to an embodiment of this application.

[0027] Figure 6 This is a partial cross-sectional view of the junction between the pins and the power supply socket of the switching LED module in an embodiment of this application.

[0028] The markings in the diagram are: 1-UV emitter, 11-pin, 12-illuminator, 13-base, 14-heat sink, 15-ring groove, 16-lens, 2-lifting plate, 3-turntable, 31-power supply base, 32-rotating groove, 33-support platform, 34-arc plate, 35-rotating seat, 36-rotating head, 37-drive rod, 38-first rotating ring, 39-rotating belt, 310-second rotating ring, 311-rotating motor, 4-installation chamber, 41-cylinder. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1

[0031] like Figure 2 As shown, this embodiment provides an LED lamp, including an ultraviolet light emitter 1 and an illumination light emitter 12.

[0032] Specifically, such as Figure 2 As shown, the ultraviolet light emitter 1 is made of a semiconductor with aluminum nitride as the raw material, including a P-terminal, an N-terminal and a PN junction located therebetween. The P-terminal of the ultraviolet light emitter 1 is connected to a pin 11 by a wire, and the N-terminal is connected to another pin 11 by a wire.

[0033] Specifically, such as Figure 2 As shown, there is at least one illuminator 12. More specifically, in this example, there are three illuminators 12, and the three illuminators 12 are made of semiconductors made of potassium arsenide phosphide, potassium phosphide, and silicon carbide, respectively. Each of them includes a P-terminal, an N-terminal, and a PN junction located therebetween. The N-terminal of the illuminator 12 is connected to a pin 11 through a wire, and the P-terminal is connected to another pin 11 through a wire. That is, the properties of the end of the illuminator 12 and the ultraviolet illuminator 1 connected to a pin 11 are different. That is, if the P-terminal / N-terminal of the ultraviolet illuminator 1 is connected to a pin 11, then a pin 11 is connected to the N-terminal / P-terminal of the illuminator 12.

[0034] During operation, the ultraviolet light emitter 1 and the illumination light emitter 12 are connected in parallel to the same power supply via pin 11. One pin 11 is connected to the positive terminal of the power supply, and the other pin 11 is connected to the negative terminal. When the power supply is turned on, the potential at the P-terminal of the ultraviolet light emitter 1 is higher than that at the N-terminal, and the potential at the P-terminal of the illumination light emitter 12 is lower than that at the N-terminal. Since the PN junctions in both the ultraviolet light emitter 1 and the illumination light emitter 12 have unidirectional conductivity, meaning that current can only flow unidirectionally from the P-terminal to the N-terminal of the semiconductor, and the current in the external circuit flows in the direction of decreasing potential, the current can only pass through the ultraviolet light emitter 1. The ultraviolet light emitting element 1, made of aluminum nitride, cannot pass through the illumination light emitting element 12. Instead, the ultraviolet light emitting element 1 emits ultraviolet light for disinfection and sterilization, while the illumination light emitting element 12 does not emit light. By reversing the polarity of the power supply, connecting one pin 11 to the negative terminal and the other pin 11 to the positive terminal, and starting the power supply, the current can only pass through the illumination light emitting element 12 and not the ultraviolet light emitting element 1. The illumination light emitting element 12, made of potassium arsenide phosphide, potassium phosphide, and silicon carbide, emits red, green, and blue light respectively. The superposition of the three colors of light forms white light for illumination, while the ultraviolet light emitting element 1 does not emit light.

[0035] Preferred, such as Figure 2As shown, the LED light also includes a base 13, which is cubic in shape. Pins 11 are disposed on the base 13 and extend out of the base 13. A heat dissipation base 14 is also provided on the upper surface of the base 13. The ultraviolet light emitter 1 and the illumination light emitter 12 are disposed on the heat dissipation base 14.

[0036] Preferred, such as Figure 2 As shown, the base 13 is also provided with an annular groove 15, and a spherical lens 16 is provided on the annular groove 15. The ultraviolet light emitter 1 and the illumination light emitter 12 are both located in the lens 16. The lens 16 is used to protect the ultraviolet light emitter 1 and the illumination light emitter 12 and to diffuse the illumination range.

[0037] like Figure 1 and Figure 3 As shown, this embodiment also provides a switchable LED module, including an LED light, a lifting plate 2, and a turntable 3.

[0038] Specifically, such as Figure 3 and Figure 6 As shown, the lifting plate 2 is vertically movable, and LED lights are arrayed on the upper surface of the lifting plate 2. All pins 11 extend vertically to the lower surface of the lifting plate 2.

[0039] Specifically, such as Figure 3 and Figure 4 As shown, the turntable 3 is located below the lifting plate 2 and rotates around its own central axis. The number of turntables matches the number of LED lights. The upper surface of the turntable 3 is provided with two power supply sockets 31, which are respectively configured to cooperate with the two pins 11 of their corresponding LED lights.

[0040] During operation, the lifting plate 2 is moved downwards so that the pin 11 extending to the lower surface of the lifting plate 2 engages with the power supply socket 31 on the turntable 3. Specifically, the two power supply sockets 31 are connected to the positive and negative terminals of the power supply, respectively, to supply power to the LED lamp. When it is necessary to switch between the disinfection and sterilization mode and the lighting mode of the LED lamp, the lifting plate 2 is moved upwards so that the pin 11 disengages from the power supply socket 31. At this time, the turntable 3 is rotated to swap the positions of the two power supply sockets 31, and the lifting plate 2 is moved downwards so that the pin 11 engages with the power supply socket 31 again. At this time, the current flow direction in the LED lamp is changed, and the light emission mode of the LED lamp is changed.

[0041] Preferred, such as Figure 1 and Figure 3 As shown, the LED module also includes a cubic mounting chamber 4 with an open top. A lifting plate 2 is located at the opening at the top of the mounting chamber 4, and the horizontal shape of the lifting plate 2 matches the opening at the top of the mounting chamber 4. A cylinder 41 is vertically installed on the bottom surface inside the mounting chamber 4. Specifically, in this example, four cylinders 41 are provided, which are respectively located at the four corners of the bottom surface inside the mounting chamber 4. The drive shaft of the cylinder 41 is connected to the lifting plate 2 and is used to drive the lifting plate 2 to move vertically.

[0042] Preferred, such as Figure 4 and Figure 5 As shown, a ring-shaped groove 32 is provided on the lower surface of the turntable 3. A support platform 33 is provided on the bottom surface of the installation chamber 4. Two arc plates 34 are vertically provided on the upper surface of the support platform 33. The arc plates 34 extend into the groove 32 and slide with it. The arc plates 34 are used to support the turntable 3 and restrict the turntable 3 to rotate only around its central axis.

[0043] Preferred, such as Figure 4 and Figure 5 As shown, a rotating seat 35 is also connected to the lower surface of the turntable 3. A rotating head 36 is rotatably connected to the lower surface of the rotating seat 35. The rotating seats 35, which are arranged in an array along the width or length direction of the lifting plate 2 and are located on the same straight line, are provided with the same driving rod 37. The driving rod 37 moves between the two arc-shaped plates 34 of the support platform 33, and the driving rod 37 and the arc-shaped plates 34 are kept at a distance.

[0044] Preferred, such as Figure 4 As shown, a first rotating ring 38 is provided on the lower surface of the turntable 3 located at one end of the drive rod 37. A rotating belt 39 is rotatably sleeved on the first rotating ring 38. The rotating belt 39 is also rotatably sleeved on a second rotating ring 310. The lower end of the second rotating ring 310 is coaxially connected to the drive shaft of a rotating motor 311. The rotating motor 311 is located on the bottom surface of the mounting chamber 4 and is used to drive the second rotating ring 310 to rotate, thereby driving the turntable 3 to rotate through the rotating belt 39 and the first rotating ring 38.

[0045] During operation, when switching between LED disinfection and lighting modes, cylinder 41 is activated, driving the lifting plate 2 upward. At this time, pin 11 disengages from power supply base 31, and the LED stops emitting light. Rotary motor 311 is then activated, driving the second rotating ring 310 to rotate. The second rotating ring 310 drives the first rotating ring 38 to rotate via rotating belt 39, thereby causing the turntable 3 located at one end of the drive rod 37 to rotate under the constraint of arc plate 34. Preferably, the rotation of the turntable 3 can also be driven by other rotary drive mechanisms. The turntable 3 located at one end of the drive rod 37 drives the rotating seat 35 mounted on it to rotate around the central axis of the turntable 3, thereby driving the drive rod 37 to move via rotating head 36. The drive rod 37, through multiple rotating heads 36 mounted on it, drives the turntable 3 on the same straight line to rotate together, thus achieving simultaneous drive of multiple turntables 3 by one drive mechanism, saving electricity and simplifying the structure.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A switching LED module, characterized in that, include: LED lamp, including ultraviolet light emitter (1) and at least one illumination light emitter (12). Ultraviolet light emitter (1) includes P terminal, N terminal and PN junction located therebetween. The P terminal and N terminal of ultraviolet light emitter (1) are respectively connected to pin (11) by wires. Illumination light emitter (12) includes P terminal, N terminal and PN junction located therebetween. The P terminal and N terminal of illumination light emitter (12) are also respectively connected to pin (11) by wires. The two ends of the pin (11) on the same side of illumination light emitter (12) and ultraviolet light emitter (1) are different. That is, if the P terminal / N terminal of ultraviolet light emitter (1) is connected to one side pin (11), then the pin (11) on that side is connected to the N terminal / P terminal of illumination light emitter (12). The lifting plate (2) is set to move along its own height direction. LED lights are arrayed on the upper surface of the lifting plate (2), and pins (11) extend vertically to the lower surface of the lifting plate (2). Turntable (3) is set to rotate around its own central axis. The number of turntables matches the number of LED lights. Two power supply sockets (31) are provided on the upper surface of turntable (3), which are respectively matched with the two pins (11) of the corresponding LED lights. A rotating groove (32) is opened on the circumference of the lower surface of turntable (3). The installation chamber (4) is open at its upper end. The horizontal shape of the lifting plate (2) matches the opening at the upper end of the installation chamber (4). A cylinder (41) is vertically installed inside the installation chamber (4). The drive shaft of the cylinder (41) is connected to the lifting plate (2). A support platform (33) is provided on the bottom surface inside the installation chamber (4). Two arc plates (34) are vertically installed on the upper surface of the support platform (33). The arc plates (34) slide in cooperation with the rotating groove (32).

2. The switching LED module according to claim 1, characterized in that, The LED lamp also includes a base (13), pins (11) are located on the base (13) and extend out of the base (13), and a heat sink (14) is also provided on the base (13), with the ultraviolet light emitter (1) and the lighting light emitter (12) located on the heat sink (14).

3. The switching LED module according to claim 2, characterized in that, The base (13) is also provided with an annular groove (15), and a lens (16) is provided on the annular groove (15). The ultraviolet light emitter (1) and the illumination light emitter (12) are both located inside the lens (16).

4. The switching LED module according to claim 1, characterized in that, The lower surface of the turntable (3) is also connected to a rotating seat (35), and the lower surface of the rotating seat (35) is rotatably connected to a rotating head (36). The rotating seats (35) are arranged in an array along the width or length direction of the lifting plate (2) and are located on the same straight line. The same driving rod (37) passes through them. When the turntable (3) rotates, the driving rod (37) does not contact the arc plate (34).

5. The switching LED module according to claim 4, characterized in that, A first rotating ring (38) is provided on the lower surface of one of the turntables (3) on the drive rod (37). A rotating belt (39) is rotatably sleeved on the first rotating ring (38). The rotating belt (39) is also rotatably sleeved on the second rotating ring (310). The lower end of the second rotating ring (310) is coaxially connected to the drive shaft of a rotating motor (311). The rotating motor (311) is located on the bottom surface of the mounting chamber (4).

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