CN116529526A

CN116529526A - Tube lamp

Info

Publication number: CN116529526A
Application number: CN202180005898.XA
Authority: CN
Inventors: 染井润一
Original assignee: Ketaiguang Catalyst Co ltd
Current assignee: Ketaiguang Catalyst Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-08-01
Also published as: JPWO2023095327A1; WO2023095327A1

Abstract

The invention provides a down lamp with an illumination function. Provided is a ceiling-embedded down lamp (100). The tube lamp is provided with: a first lamp (120) for illuminating below; a suction port (101) formed at a position lower than the ceiling surface; a discharge port (102) formed at a position lower than the ceiling surface; a fan (150) which is disposed at a position higher than the ceiling surface and which sucks air from the suction port and discharges air from the discharge port; a photocatalyst (131) disposed at a position higher than the ceiling surface for sterilizing air from the suction port; and a second lamp (140) which is arranged at a position higher than the ceiling surface and irradiates light to the photocatalyst.

Description

Tube lamp

Technical Field

The invention relates to a down lamp technology.

Background

Conventionally, a lighting device capable of deodorizing and sterilizing air is known. For example, japanese patent laying-open No. 2016-048683 (patent document 1) discloses an air purifying apparatus, an air purifying method using the air purifying apparatus, and an air purifying system. According to patent document 1, an air intake/exhaust port is provided on a wall surface of a housing to which an illumination light source is attached, a fan is provided in the housing, and the fan generates a forced air flow from the inside and outside of the housing through the air intake/exhaust port, thereby discharging heat generated from the illumination light source to the outside of the housing, and a photocatalyst facing the flow passage and a UV light source for irradiating light including ultraviolet rays to the photocatalyst are provided as an air purifying means in the middle of a flow passage of the forced air flow a in the housing.

Patent document 1: japanese patent laid-open publication No. 2016-048683

Disclosure of Invention

The present invention aims to provide a lighting device which can effectively utilize the space on the back side of illumination and can sterilize or deodorize indoor air.

According to one aspect of the present invention, a ceiling-embedded down lamp is provided. The tube lamp is provided with: a first lamp for illuminating below; a suction port formed at a position lower than the ceiling surface; a discharge port formed at a position lower than the ceiling surface; a fan disposed at a position higher than the ceiling surface for sucking air from the suction port and discharging air from the discharge port; a photocatalyst disposed at a position higher than the ceiling surface for sterilizing air from the suction port; and a second lamp disposed at a position higher than the ceiling surface for irradiating light to the photocatalyst.

As described above, according to the present invention, there is provided an illumination device capable of effectively utilizing a space on the back side of illumination and sterilizing or deodorizing indoor air.

Drawings

Fig. 1 is an upper perspective view showing the external appearance of a down lamp according to a first embodiment.

Fig. 2 is a lower perspective view showing the external appearance of the down lamp according to the first embodiment.

Fig. 3 is a plan view of the down lamp of the first embodiment.

Fig. 4 is a cross-sectional view taken from A-A in fig. 3 in a state where the down lamp of the first embodiment is buried in an opening portion of a ceiling.

Fig. 5 is an upper perspective view showing the main structure of the down lamp of the first embodiment.

Fig. 6 is a perspective view showing a photocatalyst unit according to the first embodiment.

Fig. 7 is an exploded view of the photocatalyst unit of the first embodiment.

Fig. 8 is an upper perspective view of the down lamp of the first embodiment with the upper cover removed.

Fig. 9 is an upper perspective view of a down lamp showing a state in which the photocatalyst unit is pulled out in the first embodiment.

Fig. 10 is a block diagram showing a main control configuration of the down lamp according to the first embodiment.

Fig. 11 is a front cross-sectional view showing a first down lamp of the fourth embodiment.

Fig. 12 is a front cross-sectional view showing a second down lamp according to the fourth embodiment.

Fig. 13 is a front cross-sectional view showing a third down lamp according to the fourth embodiment.

Fig. 14 is a front cross-sectional view showing a down lamp according to a fifth embodiment.

Detailed Description

Next, referring to the drawings, a down lamp 100 is described as an embodiment of the present invention. In the following description, the same components are denoted by the same reference numerals. Their names and functions are also identical. Therefore, detailed descriptions thereof are not repeated. In the following description of the down lamp 100, the direction in which the illumination body 120 of the down lamp 100 is directed downward, that is, the front, rear, left, right, upper, lower, and the like, is used as shown in fig. 1, regardless of the description of the external appearance of the down lamp 100 or the description of the internal structure of the down lamp 100.

First embodiment

< Structure of exterior of down lamp 100 >

First, the external configuration of the down lamp 100 of the present embodiment will be described. Referring to fig. 1 to 3, a down lamp 100 according to the present embodiment is mainly composed of an upper cylindrical portion and a lower disk portion. In the present embodiment, the radius of the disk in the lower part is larger than the radius of the cylinder in the upper part. In the present embodiment, the down lamp 100 is entirely configured in a cap shape.

The upper cylindrical portion is covered with an upper cover 111. The upper cover 111 is buried in the ceiling of a room or corridor. That is, the upper cover 111 is hardly visible to a person in a room or corridor.

The lower disc-shaped portion is covered by a lower cover 112. The lower cover 112 is located at a position lower than the ceiling surface. The suction port 101 is provided on the upper surface around the lower cover 112. A discharge port 102 is provided in a central portion of a lower surface of the lower cover 112. A human body induction sensor 160 is provided at a more central portion of the discharge port 102. Around the discharge opening 102, a first lamp 120 for illuminating a room or corridor is provided.

In the down lamp 100 of the present embodiment, the air sucked from the outer peripheral portion of the lower cover 112 rises outside the inside of the upper cover 111, is sterilized and deodorized in the inside of the upper cover 111, and is discharged downward from the central portion of the lower cover 112.

In the down lamp 100 of the present embodiment, the lower cover 112, the internal structure 100C shown in fig. 5, and the like are fixed to the upper cover 111 in a state where the upper cover 111 is first buried in the ceiling. Hereinafter, the collection of the components housed inside the upper cover 111 in the whole down lamp 100 is also referred to as an internal structure 100C.

Alternatively, the upper cover 111 may be partially buried in the ceiling in a state where the upper cover 111 is fixed to the lower cover 112 and the internal structure 100C. Thereafter, during maintenance or the like, in a state where the upper cover 111 is fixed to the ceiling, the user presses the switch 155 to release the fixation of the upper cover 111 and the lower cover 112, and the internal structure 100C of the down lamp 100 can be pulled out from the upper cover 111.

< internal Structure of down lamp 100 >

Next, the internal structure of the down lamp 100 of the present embodiment will be described with reference to fig. 4 and 5. Fig. 4 is a cross-sectional view A-A of fig. 3 in a state where the upper portion of down lamp 100 is buried in opening 201 of ceiling 200, and shows a front cross-sectional view of the front-rear central portion of down lamp 100. Fig. 5 is an upper perspective view showing the main internal structure of the down lamp 100.

First, the lower cover 112 and the first lamp 120 are provided at the lower portion of the down lamp 100 of the present embodiment. The suction port 101 is formed in the upper surface of the outer peripheral portion of the upper surface of the lower cover 112, that is, in the upper surface of the portion outside the upper cover 111. A suction filter 115 is attached to the suction port 101. When the fan 150 described later is driven, the inside of the upper cover 111 is set to a negative pressure, and outside air is sucked into the inside of the lower cover 112 through the suction filter 115.

A human body induction sensor 160 is provided at the center of the lower surface of the lower cover 112. The discharge port 102 is provided in the center of the lower cover 112, that is, around the human body induction sensor 160. The air which has been sterilized and deodorized by the photocatalyst described later is discharged downward from the discharge port 102 by the fan 150. A first lamp 120 is disposed around the discharge port 102. In other words, the first lamp 120 is provided on the lower surface of the lower cover 112, and the discharge port 102 is formed inside the first lamp 120.

The first lamp 120 includes a plurality of LEDs 121, 121 … … disposed around the discharge port 102, and a transparent or translucent cover 122 having a circular or annular shape in a top view covering the lower portions of the LEDs 121, 121 … ….

The down lamp 100 of the present embodiment includes, as main constituent members, the power connector 118, the second lamp 140, the photocatalyst unit 130, the fan 150, and the like in this order from above. The second lamp 140, the photocatalyst unit 130, the fan 150, the upper portion of the first lamp 120, and the like are laterally covered with the inner cover 113. In the present embodiment, the further outside of the inside cover 113 is covered with the upper cover 111.

The second lamp 140 has a plurality of LED lamps 142, 142 and … … mounted on the lower surface of the base 141. The plurality of LED lamps 142 and … … irradiates light to the photocatalyst unit 130 disposed below.

As shown in fig. 6 and 7, the photocatalyst unit 130 includes a photocatalyst body 131 mounted on the inner side of a side cover 132. A holding member 133 is attached to the side cover 132. The grip member 133 includes a peripheral frame 133A for attachment to the side cover 132, and a grip frame 133B for gripping and gripping with fingers of a user.

The photocatalyst body 131 is formed with a plurality of holes penetrating in the vertical direction to increase the surface area, and is configured such that air can pass from above to below. The photocatalyst body 131 preferably has a thickness of about several mm to several cm in the up-down direction, but may be a mesh-like sheet or the like.

Returning to fig. 4 to 5, a fan 150 is provided below the photocatalyst unit 130. In the present embodiment, the fan 150 is a propeller fan. The fan 150 includes a motor and a propeller, and the propeller causes air to flow from above to below by rotation of the motor. More specifically, the air above the photocatalyst body 131 is flowed to the space inside the first lamp 120, that is, the space around the human body induction sensor 160 through the plurality of holes of the photocatalyst body 131 by the fan 150.

In the down lamp 100 of the present embodiment, since the above-described configuration is adopted, if the fan 150 is driven, air around the lower cover 112 is sucked into the lower cover 112 through the suction filter 115 by the negative pressure generated in the upper space of the fan 150. The air flows upward through a space between the flow path cover 114 and the inner cover 113 covering the side surfaces of the fan 150 and the photocatalyst unit 130, that is, a space outside the fan 150 and the photocatalyst unit 130 and inside the inner cover 113. The air flows downward through the photocatalyst unit 130 by the negative pressure of the fan 150 and flows downward through the second lamp 140. Then, the air flows downward inside the fan 150, and is discharged downward of the down lamp 100 through a space inside the first lamp 120, that is, a space around the human body induction sensor 160.

In the present embodiment, leaf springs 117, 117 that urge in the outward direction are provided outside the upper cover 111. The leaf springs 117, 117 are formed in a V shape in front view. As a result, as shown in fig. 4, the down lamp 100 can be embedded in and fixed to the ceiling 200 by pressing the upper cover 111 into the opening 201 of the ceiling 200 against the biasing forces of the leaf springs 117, 117.

In a state where the down lamp 100 is embedded in the ceiling 200, the upper cover 111, the second lamp 140, the photocatalyst unit 130, the fan 150, and the like are preferably located at a position higher than the ceiling surface 202. The lower end of the fan 150 may reach a position lower than the ceiling surface 202. On the other hand, in this state, the lower cover 112, the first lamp 120, the suction port 101, and the discharge port 102 are preferably located at a position lower than the ceiling surface 202.

More specifically, as shown in fig. 1 to 5, in the present embodiment, the periphery of the lower cover 112 has a shape protruding outward in the horizontal direction than the upper cover 111. Further, a suction port 101 is formed on the upper surface of the protruding portion 112X. That is, the suction port 101 faces the ceiling surface 202 around the opening 201. As a result, the down lamp 100 according to the present embodiment can suck in air in the vicinity of the ceiling 200 and perform sterilization. In other words, the air in the room can be smoothly convected without being trapped in the vicinity of the ceiling 200, and the entire air in the room can be sterilized or deodorized.

< removal Structure of photocatalyst Unit 130 >

As shown in fig. 8 and 9, the interior structure 100C of the upper cover 111 in the down lamp 100, in other words, the down lamp 100 of the present embodiment is configured such that the photocatalyst unit 130 is detachable from the inner cover 113. More specifically, as shown in fig. 8, the user pulls out the inner structure 100C of the down lamp 100 such as the inner cover 113 and the lower cover 112 downward from the upper cover 111 embedded in the ceiling 200. Next, as shown in fig. 9, the user grasps the grip frame 133B of the photocatalyst unit 130, and removes the photocatalyst unit 130 from the inner cover 113. Thus, the user can clean the photocatalyst body 131 with tap water or the like while holding the holding frame 133B of the photocatalyst unit 130 with one hand.

< control Structure of down lamp 100 >

As shown in fig. 10, in the down lamp 100 of the present embodiment, the control unit 170 controls the first lamp 120, the second lamp 140, the fan 150, and the like based on the detection result of the human body induction sensor 160. For example, when the switch for lighting the room is turned on, if the human body sensor 160 detects a human being, the control unit 170 turns on the first lamp 120, the second lamp 140, and the fan 150. When the switch for lighting the room is turned on, if the human body sensor 160 does not detect the state of the human body for a predetermined time, for example, 10 minutes, the control unit 170 turns off the first lamp 120, the second lamp 140, and the fan 150.

Second embodiment

The control configuration of the first lamp 120, the second lamp 140, and the fan 150 is not limited to the above embodiment. For example, when the switch for lighting the room is turned on, the control unit 170 always turns on the first lamp 120, and when the human body sensor 160 detects a human body, turns on the second lamp 140 and the fan 150. When the switch for lighting the room is turned on, if the human body sensor 160 does not detect the state of the human body for a predetermined time, for example, 10 minutes, the control unit 170 turns off the second lamp 140 and the fan 150 and keeps the state of turning on the first lamp 120.

Alternatively, the control unit 170 turns on the second lamp 140 and the fan 150 when the switch for lighting the room is turned on, and turns on the first lamp 120 when the human body sensor 160 detects a human body. When the switch for lighting the room is turned on, if the human body sensor 160 does not detect the state of the human body for a predetermined time, for example, 10 minutes, the control unit 170 turns off the first lamp 120 and keeps the second lamp 140 and the fan 150 turned on.

Third embodiment

In the above embodiment, the human body induction sensor 160 is disposed in the center portion of the lower surface of the lower cover 112. However, the human body induction sensor 160 may be disposed at another position, or the human body induction sensor 160 may not be mounted.

Fourth embodiment

In the above embodiment, the suction port 101 is formed on the upper surface of the protruding portion 112X on the outer periphery of the lower cover 112. However, this is not a limitation.

For example, as shown in fig. 11, the discharge port 102 may be formed inward of the first lamp 120, and the suction port 101 may be formed downward of the first lamp 120.

Alternatively, as shown in fig. 12, the discharge port 102 may be formed outside the first lamp 120, and the suction port 101 may be formed on the outer side of the discharge port 102 so as to be directed downward.

Alternatively, as shown in fig. 13, the discharge port 102 may be formed on the first direction side of the first lamp 120, and the suction port 101 may be formed on the other second direction side.

More specifically, in a state where the down lamp 100 is embedded in the ceiling 200, the upper cover 111, the second lamp 140, the photocatalyst unit 130, the fan 150, and the like are positioned higher than the ceiling surface 202, and the lower cover 112, the first lamp 120, the suction port 101, and the discharge port 102 are positioned lower than the ceiling surface 202, so that the back side of the first lamp 120, that is, the inner space of the ceiling 200 can be effectively utilized, and the indoor air can be sterilized or deodorized.

Fifth embodiment

In the above embodiment, the air sucked from the outer peripheral portion of the lower cover 112 rises up to the inner portion of the inner cover 113 and turns back at the upper portion, and then is sterilized and deodorized at the inner portion of the flow path cover 114 and discharged downward from the central portion of the lower cover 112. However, the flow of air may be reversed. That is, as shown in fig. 14, the air sucked from the center of the lower cover 112 may rise up to the inner portion of the flow path cover 114, be sterilized and deodorized by the photocatalyst unit 130, be folded back at the upper portion, then descend down to the outer portion of the flow path cover 114, and be discharged to the outside from the outer peripheral portion of the lower cover 112.

[ summary ]

In the above embodiment, a ceiling-embedded down lamp is provided. The tube lamp is provided with: a first lamp for illuminating below; a suction port formed at a position lower than the ceiling surface; a discharge port formed at a position lower than the ceiling surface; a fan disposed at a position higher than the ceiling surface for sucking air from the suction port and discharging air from the discharge port; a photocatalyst disposed at a position higher than the ceiling surface for sterilizing air from the suction port; and a second lamp disposed at a position higher than the ceiling surface for irradiating light to the photocatalyst.

Preferably, the ceiling-embedded down lamp is provided with a lower end portion extending to a position outside the opening of the ceiling surface, and a suction port is formed in an upper surface of the extending portion.

The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are intended to be embraced therein.

Reference numerals illustrate:

100: a down lamp; 100C: an internal structure; 101: a suction inlet; 102: a discharge port; 111: an upper cover; 112: a lower cover; 112X: a protruding portion; 113: an inner cover; 114: a flow path cover; 115: a suction filter; 117: a leaf spring; 118: a power supply connector; 120: a first lamp; 121: an LED;122: a cover; 130: a photocatalyst unit; 131: a photocatalyst body; 132: a side mask; 133: a holding member; 133A: a surrounding frame; 133B: a clamping frame; 140: a second lamp; 141: a base; 142: an LED lamp; 150: a fan; 155: a switch; 160: a human body induction sensor; 170: a control unit; 200: a ceiling; 201: an opening portion; 202: a ceiling surface.

Claims

1. A ceiling-embedded down lamp is characterized by comprising:

a first lamp for illuminating below;

a suction port formed at a position lower than the ceiling surface;

a discharge port formed at a position lower than the ceiling surface;

a fan disposed at a position higher than the ceiling surface for sucking air from the suction port and discharging the air from the discharge port;

a photocatalyst disposed at a position higher than the ceiling surface for sterilizing air from the suction port; and

and a second lamp disposed at a position higher than the ceiling surface for irradiating light to the photocatalyst.

2. The ceiling embedded down lamp of claim 1, wherein,

the ceiling-embedded down lamp has a lower end portion extending outward from an opening portion of the ceiling surface, and the suction port is formed in an upper surface of the extending portion.