A uva+uvc disinfection lamp bead

Abstract

The utility model relates to the field of killing equipment especially relates to a UVA+UVC killing lamp pearl. The utility model provides a UVA+UVC killing lamp pearl, including substrate and setting on the UVC of substrate, UVA, first zener tube and second zener tube, UVC and UVA circuit isolation setting, first zener tube is parallel connected on the circuit of UVC, and second zener tube is parallel connected on the circuit of UVA. The utility model with the zener tube of UVA parallel connection, reduce UVA electrostatic damage risk, improve lamp pearl service life, solve the shortcoming of short service life of UVA+UVC killing lamp pearl in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of disinfection equipment, and in particular to a UVA+UVC disinfection lamp bead. Background Technology

[0002] Short-wave ultraviolet (UVC) is ultraviolet light with a wavelength between 200-280 nanometers. It has a good disinfection effect, but the light is invisible and cannot be used to determine the working status. Therefore, UVA is set to indicate the working status of the indicator beads.

[0003] UVA+UVC disinfection lamp beads are applicable in various situations, and the market demand is huge. However, market research has found that UVA+UVC disinfection lamp beads generally have a short lifespan and require frequent replacement, which is not conducive to the further promotion and application of UVA+UVC disinfection lamp beads. Utility Model Content

[0004] To address the short lifespan of UVA+UVC disinfection lamp beads in the prior art, this invention proposes an improved UVA+UVC disinfection lamp bead, which incorporates a Zener diode to reduce the risk of UVA electrostatic damage and extend the lamp bead's lifespan.

[0005] The present invention proposes a UVA+UVC disinfection lamp bead, comprising a substrate and UVC, UVA, a first Zener tube and a second Zener tube disposed on the substrate. The UVC and UVA circuits are isolated. The first Zener tube is connected in parallel to the circuit where UVC is located, and the second Zener tube is connected in parallel to the circuit where UVA is located.

[0006] Preferably, UVC is located in the middle of the substrate.

[0007] Preferably, the second Zener tube is located on the side of UVA away from UVC.

[0008] Preferably, the first Zener tube is located on the side of UVC away from UVA.

[0009] The advantages of this utility model are:

[0010] This invention addresses the problem that UVA+UVC disinfection lamp beads often become undetectable due to static electricity damage to UVA, leading to misjudgment and scrapping. By connecting a Zener tube in parallel with UVA, static electricity damage to UVA is avoided, extending the service life of UVA. This prevents misjudgment and scrapping of UVA+UVC disinfection lamp beads and extends their service life.

[0011] This invention extends the service life of UVA+UVC disinfection lamp beads, reduces replacement costs, and is conducive to the further promotion and application of UVA+UVC disinfection lamp beads. Attached Figure Description

[0012] Figure 1 It uses the existing UVA+UVC disinfection lamp structure;

[0013] Figure 2 The present invention proposes a UVA+UVC disinfection lamp structure. Detailed Implementation

[0014] Currently, UVA+UVC disinfection lamp beads on the market generally have a short lifespan. However, due to their low unit price, most consumers are willing to replace them frequently or purchase devices that accommodate multiple lamp beads to ensure the device's lifespan. In short, because UVA+UVC disinfection lamp beads are inexpensive to manufacture, small in size, and have low replacement costs, no researchers are currently investigating the reasons why these lamp beads are prone to damage.

[0015] The technicians of this application analyzed the damaged UVA+UVC disinfection lamp beads and found that most of the scrapped lamp beads only had UVA damaged, while UVC could work normally; it was just that because UVC light is invisible, when UVA was damaged, the UVA+UVC disinfection lamp beads were in a "silent" disinfection state where the light was invisible, which was mistaken by users as the lamp beads being damaged.

[0016] Further investigation by technicians revealed that in existing UVA+UVC disinfection lamps, a Zener diode is connected in parallel to the UVC branch, and then connected to the lamp's power supply pin; the UVA branch is directly connected to the lamp's power supply pin, such as... Figure 1 As shown, UVA is thus susceptible to electrostatic damage. Figure 1 In this context, UVA is abbreviated as A, UVC as C, and Zener tube as Z.

[0017] To address this issue, this application adds a Zener diode to the UVA branch, forming a circuit structure with UVC connected in parallel with the first Zener diode Z1 and UVA connected in parallel with the second Zener diode Z2. This prevents UVA from being damaged by electrostatic discharge, thereby extending the lifespan of UVA and ensuring that the UVA+UVC disinfection lamp beads are in an indicative working state for an extended period of time, preventing the UVA+UVC disinfection lamp beads from being mistakenly judged as having failed disinfection function.

[0018] In this way, UVA, UVC, the first Zener diode Z1 and the second Zener diode Z2 are connected in circuit on the substrate to form two parallel circuits, forming a new LED. The two circuits are respectively connected to the independent chip LED power supply pins, which facilitates independent power supply for UVA and UVC.

[0019] In terms of spatial layout, UVC is placed in the middle of the chip to ensure light emission rate and spatial disinfection effect; UVA is placed close to UVC for easy observation of working status; the two Zener diodes are placed on the side to avoid blocking UVC and UVA.

[0020] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A UVA+UVC disinfection lamp bead, characterized in that, It includes a substrate and UVC, UVA, a first Zener diode (Z1) and a second Zener diode (Z2) disposed on the substrate. The UVC and UVA circuits are isolated. The first Zener diode (Z1) is connected in parallel to the circuit where UVC is located, and the second Zener diode (Z2) is connected in parallel to the circuit where UVA is located.

2. The UVA+UVC disinfection lamp bead as described in claim 1, characterized in that, UVC is located in the middle of the substrate.

3. The UVA+UVC disinfection lamp bead as described in claim 2, characterized in that, The second Zener tube (Z2) is located on the side of UVA away from UVC.

4. The UVA+UVC disinfection lamp bead as described in claim 2, characterized in that, The first Zener tube (Z1) is located on the side of UVC away from UVA.

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