WO2012126326A1

WO2012126326A1 - Rotating ceiling-mounted light and rotary actuator thereof

Info

Publication number: WO2012126326A1
Application number: PCT/CN2012/072351
Authority: WO
Inventors: 李良清; 王晓冰
Original assignee: 肇庆市衡艺实业有限公司
Priority date: 2011-03-24
Filing date: 2012-03-15
Publication date: 2012-09-27
Also published as: CN102252289A; CN102252289B

Abstract

A rotating ceiling-mounted light and a rotary actuator thereof. The rotary actuator comprises a right housing (1) having a closed side and an open side. The open side is applicable for fixing to a ceiling. The closed side is provided with a central recessed part and an edge protrusion part each having an opening. A motor (6) is fixedly arranged on the edge protrusion part. A rotating shaft (10) of the motor (6) protrudes out of the closed side of the housing (1). A right wire-leading rod (2) is fixedly arranged on the central recessed part and protrudes out of the closed side of the housing (1). An actuator component is fixedly arranged on the rotating shaft (10) of the motor (6). A lampshade bracket (3) is rotatably arranged around the wire-leading rod (2). A passive component is connected to the lampshade bracket (3) and is capable of rotating along with the lampshade bracket (3) around the wire-leading rod (2). The actuator component and the passive component are fitted together. The rotating ceiling-mounted light comprises the rotary actuator and a lampshade arranged on the lampshade bracket (3). The rotating ceiling-mounted light is structurally compact and convenient to install.

Description

Rotating ceiling lamp and its rotary drive

The present invention generally relates to ceiling lamps and, more particularly, to rotary drives for ceiling lamps. Background technique

Existing rotating luminaires typically include a rotatable lampshade to provide a better view and display of the luminaire and to broaden its range of use. However, the existing rotating luminaire has a complicated structure, and in order to rotate the lamp cover, the entire luminaire including the lamp cover needs to be designed to be integrally closed. Such a complex and integrated closed-type rotating luminaire is not only costly, but also disadvantageous for replacing light sources such as light bulbs and lamps, and often requires professional maintenance personnel to complete the replacement of the light source. In addition, when designing the transmission mechanism, the existing rotating luminaires are designed to integrate the specific structure of the transmission mechanism and the specific luminaire. For example, a luminaire can only be fitted with one lamp hood, thereby making the luminaire adaptable and versatile. Very poor.

In addition, since the ceiling lamp requires a compact overall structure to minimize its height to fit a limited space in the room, the conventionally versatile and large-sized rotary drive mechanism in the existing rotary luminaire is not suitable for direct application to a ceiling lamp. Summary of the invention

It is an object of the present invention to provide a compact rotary drive for a ceiling light that can simultaneously serve as a standardized mount for a ceiling light.

According to a first aspect of the present invention, a rotary drive for a ceiling light is provided, comprising:

a rigid housing having a closed side and an open side, the open side of the rigid housing being adapted to be fixed to the ceiling, the closed side of the rigid housing having a central concave portion and an edge protruding portion, the central concave portion and the edge protruding portion respectively With an opening;

A motor having a rotating shaft fixedly mounted on an edge projection of a closed side of the rigid housing and located inside the rigid housing, the rotating shaft of the motor projecting outwardly through the opening of the edge projection of the closed side of the rigid housing The closed side of the body;

a rigid lead post fixedly disposed on a central concave portion of the closed side of the rigid housing and And defining, in a longitudinal direction thereof, a lead cavity communicating with the interior of the rigid housing, the rigid lead post projecting outwardly from the closed side of the rigid housing by the opening of the central concave portion of the closed side of the rigid housing; outside the rigid housing And a drive member fixedly mounted on the rotating shaft of the motor; a lamp cover bracket located outside the rigid housing and rotatably mounted around the rigid lead post;

a driven member that is coupled to the shade bracket and that is rotatable with the shade bracket about the rigid lead post,

The drive member and the driven member are disposed to be engaged with each other. The driven gear and the lamp cover bracket can also be integrally formed.

The driving member and the driven member may also be a driving pulley and a driven pulley, respectively, which are mutually engaged by a belt. The driven pulley and the lamp cover bracket can be integrally formed.

The lamp holder bracket may additionally be provided with a holding device for detachably holding the lamp cover.

A socket (or may be referred to as a "lamp") for receiving a light source such as a bulb or tube is preferably detachably coupled to the end of a rigid lead post external to the rigid housing.

Preferably, the rigid housing is cylindrical and the driven member is rotatable about a longitudinal central axis of the housing.

Preferably, the shade bracket and the base are made as standardized parts, which makes it easy to change the existing standardized chandelier into a rotating chandelier and facilitate the replacement of the shade.

According to a second aspect of the present invention, there is provided a rotary ceiling lamp having the above-described rotary drive and a lamp cover mounted on the cover bracket.

Therefore, the rotary ceiling lamp according to the present invention is not only compact but also easy to install. DRAWINGS

Figure 1 is a cross-sectional view showing a ceiling lamp rotary actuator according to a first embodiment of the present invention;

2 is a schematic cross-sectional view of a ceiling lamp rotary actuator in accordance with a second embodiment of the present invention. detailed description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to Figure 1, the ceiling lamp rotary drive of the present invention comprises a cylindrical or cylindrical rigid housing

1 and a motor 6 fixedly mounted inside the housing 1. The housing 1 has a closed side and an open side. Shell The open side of the body 1 is formed with a mounting flange for attachment to the ceiling. The closed side of the housing 1 has a central concave portion and an edge protruding portion, and the central concave portion and the edge protruding portion are respectively provided with openings.

The motor 6 is fixedly mounted on the edge projecting portion of the closed side of the casing 1. The rotary shaft 10 of the motor 6 projects outwardly from the closed side of the housing 1 through the opening of the edge projection of the closed side of the housing 1. The drive pulley 5 is fixedly mounted on the rotary shaft 10 of the motor 6.

The rigid lead post 2 is fixedly disposed on the central concave portion of the closed side of the casing 1 and defines a lead cavity communicating with the inside of the casing 1 in the longitudinal direction (longitudinal direction) thereof. The rigid lead post 2 projects outwardly from the closed side of the housing 1 through the opening of the central recessed portion of the closed side of the housing 1. The rigid housing 1 and the rigid lead post 2 can be made of any suitable material such as a metallic material or a rigid plastic.

The lampshade bracket 3 is mounted around the rigid lead post 2. In Fig. 1, a bearing 9 is provided between the lamp cover holder 3 and the housing 1 so that the lamp holder holder can be rotated relative to the housing 1 (and thus relative to the rigid lead post 2). The driven pulley 4 is coupled to the shade bracket 3 and is rotatable with the shade bracket 3 around the rigid lead post 2. The drive pulley 5 is coupled to the driven belt 4 via a drive belt 8, so that when the rotary shaft 10 of the motor 6 drives the drive pulley 5 to rotate, the driven pulley 4 and the cover bracket 3 are rotatable about the longitudinal center axis of the housing 1. The driven pulley 4 can be formed integrally with the lamp cover bracket 3 for easy manufacture.

The lamp cover (not shown) may be directly fixed to the lamp cover holder 3, or may be indirectly fixed to the lamp holder holder 3 by a holding means for detachably holding the lamp cover, such as the lamp cover holder 7, to be rotatable together with the lamp cover holder 3.

A socket (not shown) for receiving a light source such as a bulb or a bulb is detachably attached to the end of the rigid lead post 2 outside the casing 1. Thus, the power cord can be connected from the open side of the housing 1 through the lead cavity of the rigid lead post 2 to the socket to power the light source.

Both the lampshade holder 3 and the lamp holder can be made as standardized parts, which makes it easy to change the existing standardized chandelier into a rotating chandelier and facilitate the replacement of the lamp cover.

The ceiling light rotary drive shown in Figure 2 is substantially similar to the overhead light rotary drive shown in Figure 1, but with a gear train instead of a pulley drive train. In FIG. 2, the driven gear 4A is coupled to the shade bracket 3 and is rotatable about the rigid lead post 2 together with the shade bracket 3. The driving gear 5A is directly coupled to the driven gear 4A, so that when the rotating shaft 10 of the motor 6 drives the driving gear 5A to rotate, the driven gear 4A and the globe bracket 3 can rotate about the longitudinal center axis of the casing 1. The driven gear 4A can be formed integrally with the lamp cover bracket 3 to facilitate manufacturing. Further, instead of providing a bearing between the casing 1 and the shade bracket 3, a bearing may be provided between the shade bracket 3 and the rigid lead post 2 to facilitate relative rotation of the shade bracket 3.

Obviously, the structure shown in Fig. 2 is more compact and reliable than the structure shown in Fig. 1. It should be understood by those skilled in the art that the foregoing embodiments are only used to explain and explain the invention, and are not intended to limit the invention.

Claims

Rights request

1. A rotary drive for a ceiling light, comprising:

a rigid lead post fixedly disposed on a central recessed portion of the closed side of the rigid housing and defining a lead cavity in communication with the interior of the rigid housing along a longitudinal direction thereof, the rigid lead post passing through a central portion of the closed side of the rigid housing The opening of the concave portion projects outwardly from the closed side of the rigid housing;

a drive member external to the rigid housing and fixedly mounted on the rotating shaft of the motor;

a shade bracket that is external to the rigid housing and rotatably mounted about the rigid lead post;

The drive member and the driven member are disposed to be engaged with each other.

2. The rotary actuator according to claim 1, wherein the driving member and the driven member are respectively a meshing drive gear and a driven gear.

3. The rotary drive of claim 2, wherein the driven gear is integrally formed with the shade bracket.

4. The rotary actuator according to claim 1, wherein the driving member and the driven member are a driving pulley and a driven pulley, respectively, and the two are engaged with each other by a belt.

5. The rotary drive of claim 4, wherein the driven pulley is integrally formed with the lamp cover bracket.

6. The rotary drive of claim 1 wherein the shade bracket is provided with retaining means for removably retaining the shade.

7. The rotary drive of claim 1 wherein the light source is received The socket is detachably coupled to the end of the rigid lead post external to the rigid housing.

8. The rotary drive of claim 1 wherein the rigid housing is cylindrical and the driven member is rotatable about a longitudinal central axis of the housing.

9. The rotary drive of claim 7, wherein the shade bracket and the socket are both standardized parts.

A rotary ceiling lamp, comprising a rotary drive according to any of the preceding claims and a lamp cover mounted on the lampshade support.