JP2014050319A - Vermin destruction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a smaller and lighter vermin destruction device.SOLUTION: A vermin destruction device uses a first light source 14 and a second light source 16 to guide vermin G in a direction of the second light source 16, and kills the vermin G by discharge between electrodes 20 and 22 that are arranged in a guiding direction. The first light source 14 and the second light source 16 use ultraviolet LEDs 14 and 16 and are installed on front and back sides of a substrate 12, respectively. An energization controller 30 controls energization to the ultraviolet LEDs 14 and 16 and to the electrodes 20 and 22, and realizes efficient vermin destruction by performing discharge when guiding the vermin G.

Description

The present invention relates to a pest control apparatus using phototactic properties.

Many pests such as moths and moths are known to have a phototaxis that moves toward light containing ultraviolet rays, and a pest capture device using this phototaxis is disclosed in Patent Document 1. Further, Patent Literature 2 discloses an electric shock insecticide using a method of electrocuting a pest with an electric shock grid as a method of extermination.

JP 2012-19759 A Japanese Patent Laid-Open No. 2001-25200

Conventional pest control devices, as disclosed in Patent Document 2, are generally equipped with a lightning grid outside the light source to kill the pests attracted to the light source. In order to increase the density, it is necessary to increase the density of the electric grid or to secure a wider area, and there is a problem that an increase in size and weight of the apparatus cannot be avoided.

The present invention provides a pest control apparatus that reduces the size and weight of the apparatus by inducing pests using a plurality of light sources.

According to a first aspect of the present invention, there are provided a first light source and a second light source that emit light having a pest attracting effect, a pest control means having a function of capturing or killing the pest, and the first light source. A pest control apparatus comprising control means for controlling energization, wherein the second light source is disposed between the first light source and the pest control means.

This pest control device is characterized in that the light quantity of the second light source can be relatively increased by controlling the energization to the first light source and reducing the light quantity. Since the pests are guided in the direction of the second light source having a larger light quantity, they are captured or killed by the pest control means arranged in the guiding direction. By guiding the pests in the direction from the first light source to the second light source in this way, the pests can be efficiently controlled even by a relatively small scale pest control means. This makes it possible to promote the reduction in size and weight of the pest control apparatus.

As the first light source and the second light source, an ultraviolet LED is suitable. Ultraviolet LEDs have a higher effect of attracting pests than conventional white and yellow-painted light bulbs used in this type of device, and can reduce maintenance costs because they have a long life and a small amount of electricity used. Since the ultraviolet LED is thin and lightweight, and has a small amount of heat generation, it can be surface-mounted on a substrate equipped with an electronic circuit, and further reduction in size and weight of the pest control apparatus can be promoted.

As the pest control means, a method of killing pests by electric discharge generated between the electrodes is suitable. When a voltage is applied to the electrodes arranged opposite to each other, a phenomenon in which a current flows between the electrodes due to a potential difference between the electrodes is a discharge, and a spark is generated in the atmosphere during the discharge. When killing pests by this spark, there is no problem of contamination due to contact with pests such as conventional electric grids, so that the apparatus can be kept clean for a long period of time. Further, it is possible to realize power saving by providing a control unit for controlling energization to the pest control unit and performing energization to the electrode only when the pest is induced.

According to a second aspect of the present invention, there is provided a pest control method, wherein the pest control means is energized when the power supply to the first light source is cut off or reduced. In this method, since the discharge is performed when the pests are guided from the first light source to the second light source, efficient pest control can be realized even with a small-scale device, and further, saving can be achieved. Electric power can be achieved.

According to the present invention, a pest can be guided in a predetermined direction using a plurality of light sources, ie, a first light source and a second light source, and the pest can be controlled using the pest control means arranged in the guide direction. Therefore, efficient pest control can be realized even with a small-scale device, and the device can be reduced in size and weight.

Conceptual diagram showing the structure of the pest control device Conceptual diagram showing the structure of the electric circuit of the pest control device Time chart showing control pattern of energization controller

In FIG. 1, the pest control apparatus 10 mainly includes a substrate 12, ultraviolet LEDs 14 and 16, a support base 18, electrodes 20 and 22, a pest collection tray 24, electric circuits 26 and 28, and an energization controller 30.

The substrate 12 is a circular plate curved with a curvature radius R. In FIG. 2, on the front side (convex side) of the substrate 12, twelve ultraviolet LEDs 14 are surface-mounted in two rows of six. On the substrate 12, a circuit of 2 × 6 is formed by 12 UV LEDs 14 and 6 resistors. On the back side (concave side) of the substrate 12, twelve ultraviolet LEDs 16 are surface-mounted in two rows of six. On the substrate 12, a 2 × 6 parallel circuit is formed by 12 ultraviolet LEDs 16 and 6 resistors. Ultraviolet LEDs 14 and 16 having a wavelength of 360 nm to 410 nm are used. These circuits are energized from a household power supply (AC 100 V) via an electric circuit 26 comprising an AC / DC converter or an AC / AC converter.

The board 12 is fixed to the support base 18 with bolts 36 and 38 at flat mounting portions 32 and 34 provided at opposing positions. A gap is provided between the substrate 12 and the support base 18 so that a pest can pass therethrough. A pair of electrodes 20 and 22 are mounted on the support base 18 at positions facing each other across the position directly below the center of the substrate 12. The electrodes 20 and 22 are energized from a household power supply (AC 100 V) via the electric circuit 28. The electric circuit 28 includes an AC / DC converter 40, a pulse generator 42, and an HVDC / DC converter 44. The electric circuit 28 converts a normal household voltage into a pulse high voltage and supplies it to the electrodes 20 and 22. The electric circuit 28 and the electrodes 20 and 22 are connected by a high voltage resistant HV cable 46.

A pest collecting tray 24 is provided directly below the pair of electrodes 20 and 22. The pest collection tray 24 is a tray that receives the pest G that enters the apparatus through a gap between the substrate 12 and the support base 18 and is killed by a spark (spark) due to discharge between the electrodes 20 and 22. The pest collection tray 24 can be easily detached from the support base 18.

The energization controller 30 is a device that controls energization of the electric circuits 26 and 28. The energization controller 30 performs on / off control of energization of the front-side ultraviolet LED 14, the back-side ultraviolet LED 16, and the electrodes 20 and 22 in a pattern as shown in FIG. The front side ultraviolet LED 14 is turned on from time 0 to t1, turned off from t1 to t2, and turned on again from t2 to t3. The back side ultraviolet LED 16 is always energized at all times from time 0 to t3. The electrodes 20 and 22 are in the off state from time 0 to t1, in the on state from t1 to t2, and in the off state again from t2 to t3.
In this way, the pest control apparatus 10 performs energization control such that the front side ultraviolet LED 14 is temporarily turned off at a certain timing when the back side ultraviolet LED 16 is lit and discharge is generated between the electrodes 20 and 22 at the same timing. Done.

The pest control method in the pest control apparatus 10 is as follows. Between time 0 and t1, both the front-side ultraviolet LED 14 and the back-side ultraviolet LED 16 are lit, and the periphery of the substrate 12 is brightly illuminated to induce the phototaxis of the pest G, and the pest is attracted to the front side of the substrate 12. During the time t1 to t2, only the front-side ultraviolet LED 14 is turned off, and the back-side ultraviolet LED 16 is kept on. The insect pest G attracted to the front side of the substrate 12 is guided to the back side of the relatively bright substrate 12 and enters the inside of the apparatus through the gap between the substrate 12 and the support base 18. At the timing when the front-side ultraviolet LED 14 is extinguished, high-voltage energization is started to the electrodes 20 and 22 to generate a discharge between the electrodes 20 and 22, and the insect pest G induced inside the apparatus is killed by a spark by the discharge. During the time t2 to t3, the energization to the electrodes 20 and 22 is stopped, and the front ultraviolet LED 14 is turned on again. By repeatedly performing a series of energization on / off control at time 0 to t3, the insect pest G around the apparatus can be intermittently removed.

10 Pest control device 12 Substrate 14 Front side UV LED
16 Backside UV LED
20, 22 Electrodes 26, 28 Electric circuit 30 Energizing controller

Claims (5)

A first light source and a second light source that emit light having a pest attracting effect;
Pest control means having the function of capturing or killing pests;
Control means for controlling energization to the first light source;
The pest control apparatus, wherein the second light source is disposed between the first light source and the pest control means. The first light source and the second light source are ultraviolet LEDs, and each includes a substrate on which the first light source and the second light source are mounted on the front side and the back side, respectively.
The pest control apparatus according to claim 1. The pest control means kills the pest by the discharge generated between the electrodes,
The pest control apparatus according to claim 2. Characterized in that it comprises control means for controlling energization to the pest control means,
The pest control apparatus according to any one of claims 1 to 3. A pest control method using the pest control apparatus according to claim 4,
When the energization to the pest control means is performed when the energization to the first light source is cut off or reduced,
Pest control method.

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