CN212132091U

CN212132091U - Intelligent lamp

Info

Publication number: CN212132091U
Application number: CN202020655741.4U
Authority: CN
Inventors: 陈建; 曹亮亮
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-12-11
Anticipated expiration: 2030-04-26

Abstract

The application discloses an intelligent lamp which comprises a lamp cap, a lamp shell, a bulb, a light source plate, an RF module and an antenna, wherein the lamp shell is connected with the lamp cap and is provided with a containing cavity; the antenna comprises a connecting part connected with the RF module and a free part positioned outside the accommodating cavity; the free portion is disposed along a periphery of the light source board. The RF module is arranged in the accommodating cavity, the connecting part of the antenna is connected with the RF module, and the free part of the antenna is positioned outside the accommodating cavity. The free portion of antenna sets up along the periphery of light source board, can make full use of the clearance between the inner wall of light source board and lamp body, therefore the position that the free portion of antenna set up approaches to the maximum internal diameter of casing, and the distance of each direction and the metalwork of the free portion of antenna is all big enough, but the interference of the metal part in the at utmost reduction intelligent lamp to the antenna, guarantees that the free portion of antenna homoenergetic is better in the course of the work and receives control signal.

Description

Intelligent lamp

Technical Field

The application relates to the field of lighting equipment, in particular to an intelligent lamp.

Background

The intelligent bulb lamp is a lamp capable of dimming and modulating colors, and an RF (radio frequency) module and a corresponding antenna are mounted in the lamp so as to receive signals. In the prior art, a light source aluminum substrate is grooved. Exposing the on-board antenna from the slot. In order to avoid interference and antenna performance, a large groove is often required to be formed in the light source aluminum substrate, and the groove occupies the space of the light source aluminum substrate, so that the difficulty in designing the light source is high. And RF module slotted limitation, antenna and light source board interval are not enough, lead to easily that there is the interference in certain direction of antenna.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide an intelligent lamp, aims at solving prior art, and the antenna of intelligence ball bubble lamp is by the problem of interference easily.

To achieve the purpose, the embodiment of the application adopts the following technical scheme:

the intelligent lamp comprises a lamp cap, a lamp shell which is connected with the lamp cap and is provided with an accommodating cavity, a bulb which is connected with the lamp shell, a light source plate which is positioned between the lamp shell and the bulb, an RF module which is arranged in the accommodating cavity, and an antenna which is electrically connected with the RF module; the antenna comprises a connecting part connected with the RF module and a free part positioned outside the accommodating cavity; the free portion is disposed along a periphery of the light source board.

In one embodiment, the free portion is circular-arc shaped and the light source board is circular.

In one embodiment, the lamp housing is provided with a yielding groove adapted to the connecting portion, and the connecting portion extends into the accommodating cavity through the yielding groove to be connected with the RF module.

In one embodiment, the connection point of the RF module and the connection portion is located at one end of the RF module near the light source board.

In one embodiment, the intelligent lamp further comprises a metal heat dissipation cover plate which is arranged on the lamp housing and seals the accommodating cavity, and the light source plate is arranged on the metal heat dissipation cover plate; the metal heat dissipation cover plate is provided with a first yielding hole matched with the connecting part.

In one embodiment, a driving board is installed in the accommodating cavity, and the driving board is electrically connected with the light source board; the light source board is provided with a light source, the light source board is provided with a light source hole, the light source hole is formed in the light source board, and the light source board is provided with a clamping hook.

In one embodiment, a mounting bracket is mounted on the driving plate, and the RF module is mounted on the mounting bracket.

In one embodiment, the inner wall of the lamp housing is provided with a mounting table, the mounting table is located outside the accommodating cavity, and the free portion is arranged on the mounting table.

In one embodiment, the lamp housing comprises an aluminum housing and a plastic housing covering the outer surface of the aluminum housing; the aluminum shell is provided with the accommodating cavity; the plastic shell is provided with the mounting table.

In one embodiment, the lamp housing has a clamping groove formed in an inner wall thereof, and the bulb is provided with a clamping protrusion adapted to the clamping groove.

The beneficial effects of the embodiment of the application are as follows: the RF module is arranged in the accommodating cavity, the connecting part of the antenna is connected with the RF module, and the free part of the antenna is positioned outside the accommodating cavity. The free portion of antenna sets up along the periphery of light source board, can make full use of the clearance between the inner wall of light source board and lamp body, therefore the position that the free portion of antenna set up approaches to the maximum internal diameter of casing, and the distance of each direction and the metalwork of the free portion of antenna is all big enough, but the interference of the metal part in the at utmost reduction intelligent lamp to the antenna, guarantees that the free portion of antenna homoenergetic is better in the course of the work and receives control signal.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an intelligent lamp in an embodiment of the present application;

fig. 2 is a schematic diagram of an internal structure of an intelligent lamp in an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an exploded view of a smart light in an embodiment of the present application;

fig. 5 is a schematic diagram of an 1/4 wavelength monopole antenna in an embodiment of the present application;

fig. 6 is a 3D plot of radiation from an 1/4 wavelength monopole antenna in an embodiment of the present application;

fig. 7 is a graph of antenna efficiency for an 1/4 wavelength monopole antenna in an embodiment of the present application;

fig. 8 is a schematic diagram of return loss S11 of an 1/4 wavelength monopole antenna in an ism (industrial Scientific medical) frequency band in an embodiment of the present application;

in the figure:

1. a lamp cap;

2. a lamp housing; 21. an aluminum shell; 22. a plastic shell; 23. a yielding groove; 24. an installation table; 25. an accommodating cavity; 26. a clamping groove;

3. ball bubble; 31. clamping the bulges;

4. a light source plate; 41. a clamping hole;

5. an RF module;

6. an antenna; 61. a connecting portion; 62. a free portion;

7. a metal heat dissipation cover plate; 71. a first abdicating hole; 72. a second abdicating hole;

8. a drive plate; 81. a hook is clamped;

9. and (7) mounting frames.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1 to 4, an embodiment of the present application provides an intelligent lamp, which includes a lamp cap 1, a lamp housing 2 connected to the lamp cap 1 and having an accommodating cavity 25, a bulb 3 connected to the lamp housing 2, a light source plate 4 located between the lamp housing 2 and the bulb 3, an RF module 5 disposed in the accommodating cavity 25, and an antenna 6 electrically connected to the RF module 5; the antenna 6 comprises a connecting part 61 connected with the RF module 5 and a free part 62 positioned outside the accommodating cavity 25; the free portion 62 is provided along the periphery of the light source board 4.

In the embodiment of the present application, the RF module 5 is disposed in the accommodating cavity 25, the connecting portion 61 of the antenna 6 is connected to the RF module 5, and the free portion 62 of the antenna 6 is located outside the accommodating cavity 25. The free part 62 of the antenna 6 is arranged along the periphery of the light source board 4, so that a gap is formed between the free part 62 of the antenna 6 and the light source board 4, and the gap between the light source board 4 and the inner wall of the lamp housing 2 can be fully utilized, so that the position of the free part 62 of the antenna 6 approaches to the maximum inner diameter of the housing, the distance between each direction of the free part 62 of the antenna 6 and a metal piece is large enough, the interference of a metal component in the intelligent lamp on the antenna 6 can be reduced to the maximum extent, the inner wall of the lamp housing 2 can be used as a radiation ground of the antenna 6, and the free part 62 of the antenna 6 can receive control signals well in the working process.

Meanwhile, because the antenna 6 is not arranged on the light source board 4, the light source board 4 does not need to be reserved (not grooved), the light emitting pieces on the light source board 4 are more reasonably distributed, the design difficulty is low, and the light emitting intensity is large enough. There is sufficient clearance between the free portion 62 of the antenna 6 and the light source board 4 to further ensure that all directions of the free portion 62 of the antenna 6 are not easily disturbed.

In the embodiment of the present application, the antenna 6 may be disposed lower than the light source board 4. The antenna 6 may be made of aluminum, which is easy to process. The connection portion 61 of the antenna 6 is connected to a port on the RF module 5, and the port is soldered to the RF module 5, so that the antenna 6 can be connected to the RF module 5 well, and the assembly is simple.

Referring to fig. 2, as another embodiment of the intelligent lamp provided by the present application, the free portion 62 is arc-shaped, and the light source plate 4 is circular. For example, when the light source board 4 has a rectangular shape, the free portion 62 may also have a bent shape.

In the embodiment of the present application, the free portion 62 of the antenna 6 is an arc monopole antenna 6, and a ground plane is introduced through the RF module 5, the lamp housing 2, the light source board 4 and the lamp cap 1; forming an 1/4 wavelength monopole antenna 6. The metal structure composed of the lamp housing 2, the light source plate 4 and the lamp cap 1 is used as a ground plane, and the RF module 5 is connected with the ground plane. The ground plane is used as a mirror antenna 6 and an antenna 6 exposed out of the metal shell to form an equivalent half-wave dipole antenna 6. The shielding effect of metal is avoided ingeniously, and the complete design of the antenna 6 is achieved.

By way of example, the following is a simulated design of the antenna 6 under certain parameters:

as shown in fig. 5, the 1/4-wavelength monopole antenna 6 has an operating frequency band of 2.4GHz (hertz) ISM band, a central frequency point of 2.45GHz, a wavelength of 122mm in vacuum, and the antenna 6 is exposed in air and made of aluminum. It is possible to obtain (keep various metal parts that can affect the antenna 6 to ensure the accuracy of the simulation result): the 1/4 wavelength in vacuum is: 30 mm. The antenna 6 of the present application is an arc-shaped monopole antenna 6, and the total length of the arc-shaped antenna 6 is 1/4 wavelengths, namely 30 mm. The distance from the antenna 6 to the center point of the intelligent lamp is 25mm, the circumference of a circular ring at the position where the bulb 3 is connected with the lamp shell 2 is 157mm, and the radian of the arc-shaped antenna 6 obtained through modeling is 360 degrees (30/157) approximately equal to 69 degrees. (the length of the antenna 6 can thus be adjusted according to the actual requirements).

Referring to the simulation result of the actual sample, the following are shown: as shown in fig. 6, the antenna 6 has omnidirectional radiation mainly in the direction outside the lamp housing 2. The efficiency of the antenna 6 is shown in fig. 7, the efficiency is-0.3 dB (decibel, signal strength), which is converted into 50%, and compared with the application scenario of the general on-board antenna 6 on the bulb 3, the efficiency of the antenna 6 is higher than that of the on-board antenna 6 (generally 10% -20%). As shown in fig. 8, the return loss S11 of the antenna 6 in the ISM band is-13.6, and the return losses in the ISM band are all < -10dB, which indicates that the antenna has achieved good impedance matching. Therefore, the scheme provided by the embodiment of the application has feasibility of practical application.

Referring to fig. 2-3, as another embodiment of the intelligent lamp provided by the present application, the lamp housing 2 is provided with an avoiding groove 23 adapted to the connecting portion 61, and the connecting portion 61 extends into the accommodating cavity 25 through the avoiding groove 23 to be connected to the RF module 5. Therefore, the light source plate 4 is not provided with a groove for the antenna 6 to pass through, enough light emitting pieces can be arranged on the light source plate 4, and the light emitting pieces are distributed uniformly; meanwhile, the gap between the antenna 6 and the light source board 4 can be set to be large enough to reduce the influence of the light source board 4 on the antenna 6 to the maximum extent.

Referring to fig. 2-3, as another embodiment of the intelligent lamp provided by the present application, a connection point of the RF module 5 and the connection portion 61 is located at an end of the RF module 5 close to the light source board 4, that is, a feed point of the RF module 5 is located at a junction between the accommodating cavity 25 and the outside.

Referring to fig. 3-4, as another embodiment of the intelligent lamp provided by the present application, the intelligent lamp further includes a metal heat-dissipating cover plate 7 mounted on the lamp housing 2 and enclosing the accommodating cavity 25, and the light source plate 4 is mounted on the metal heat-dissipating cover plate 7; the metal heat-dissipating cover plate 7 is provided with a first yielding hole 71 adapted to the connecting portion 61.

The connecting portion 61 of the antenna 6 penetrates through the first yielding hole 71 and then penetrates through the yielding groove 23 to leave the accommodating cavity 25, so that the free portion 62 extends out of the accommodating cavity 25.

When the intelligent lamp works, the lamp holder 1 and the metal heat-radiating cover plate 7 form a shielding space with the lamp housing 2 after closing the accommodating cavity 25, and the RF module 5 is located in the shielding space. The connection portion 61 of the antenna 6 is connected to the feed point of the RF module 5 located in the shielded space, and the free portion 62 of the antenna 6 is located outside the shielded space.

Referring to fig. 2-4, as another embodiment of the intelligent lamp provided by the present application, a driving board 8 is installed in the accommodating cavity 25, and the driving board 8 is electrically connected to the light source board 4; the driving plate 8 is provided with a hook 81, the metal heat dissipation cover plate 7 is provided with a second yielding hole 72 corresponding to the hook 81, and the light source plate 4 is provided with a clamping hole 41 adaptive to the hook 81. When the intelligent lamp is installed, the driving plate 8 is installed in the lamp housing 2, and the metal heat dissipation cover plate 7 and the light source plate 4 are installed on the lamp housing 2 by using the hook 81 on the driving plate 8.

Referring to fig. 4, as another embodiment of the intelligent lamp provided by the present application, a mounting bracket 9 is mounted on the driving plate 8, and the RF module 5 is mounted on the mounting bracket 9, so that the RF module 5 can maximally approach a position where the accommodating cavity 25 communicates with the outside.

Referring to fig. 2-4, as another embodiment of the intelligent lamp provided by the present application, the mounting table 24 is disposed on the inner wall of the lamp housing 2, the mounting table 24 is located outside the accommodating cavity 25, and the free portion 62 is disposed on the mounting table 24, which is the position of the maximum outer diameter of the intelligent lamp, so as to avoid interference of various metal components of the intelligent lamp on the antenna 6 to the greatest extent.

Referring to fig. 4, as another embodiment of the intelligent lamp provided by the present application, the lamp housing 2 includes an aluminum housing 21 and a plastic housing 22 covering an outer surface of the aluminum housing 21; the aluminum case 21 has an accommodation chamber 25; the plastic shell 22 is provided with a mounting stand 24. When the free portion 62 of the antenna 6 is attached to the mount 24, the free portion 62 of the antenna 6 is also spaced apart from the aluminum case 21 by a sufficient distance, and interference with the aluminum case 21 is less likely to occur in the free portion 62 of the antenna 6.

Referring to fig. 2-4, as another specific embodiment of the intelligent lamp provided by the present application, a clamping groove 26 is formed on the inner wall of the lamp housing 2, and a clamping protrusion 31 adapted to the clamping groove 26 is disposed on the bulb 3. The abdicating groove 23 can be opened near the connection part of the lamp shell 2 and the bulb 3, and the connecting part 61 of the antenna 6 extends out of the accommodating cavity 25 from the abdicating groove 23. The free part 62 of the antenna 6 can be close to the connection part of the bulb 3 and the lamp housing 2, and the connection part is close to the maximum inner diameter part of the intelligent lamp, so that the interference of various metal parts of the intelligent lamp on the antenna 6 can be avoided to the greatest extent.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The intelligent lamp is characterized by comprising a lamp cap, a lamp shell, a bulb, a light source plate, an RF module and an antenna, wherein the lamp shell is connected with the lamp cap and is provided with an accommodating cavity; the antenna comprises a connecting part connected with the RF module and a free part positioned outside the accommodating cavity; the free portion is disposed along a periphery of the light source board.

2. The smart light of claim 1 wherein the free portion is arcuate and the light source panel is circular.

3. The intelligent lamp according to claim 1, wherein the lamp housing is provided with a yielding groove adapted to the connecting portion, and the connecting portion extends into the accommodating cavity through the yielding groove to be connected with the RF module.

4. The smart light of claim 1 wherein the connection point of the RF module to the connection portion is located at an end of the RF module near the light source board.

5. The intelligent lamp according to any one of claims 1 to 4, further comprising a metal heat-dissipating cover plate mounted to the lamp housing and enclosing the receiving cavity, wherein the light source plate is mounted to the metal heat-dissipating cover plate; the metal heat dissipation cover plate is provided with a first yielding hole matched with the connecting part.

6. The intelligent lamp according to claim 5, wherein a driving board is installed in the accommodating cavity, and the driving board is electrically connected with the light source board; the light source board is provided with a light source, the light source board is provided with a light source hole, the light source hole is formed in the light source board, and the light source board is provided with a clamping hook.

7. The smart light of claim 6, wherein a mounting bracket is mounted on the driver board, the RF module being mounted on the mounting bracket.

8. A smart lamp as claimed in any one of claims 1 to 4, wherein the inner wall of the lamp housing is provided with a mounting platform, the mounting platform is located outside the accommodating cavity, and the free portion is provided on the mounting platform.

9. The smart lamp according to claim 8, wherein the lamp housing comprises an aluminum housing and a plastic housing covering an outer surface of the aluminum housing; the aluminum shell is provided with the accommodating cavity; the plastic shell is provided with the mounting table.

10. The intelligent lamp according to any one of claims 1 to 4, wherein a clamping groove is formed in the inner wall of the lamp housing, and a clamping protrusion adapted to the clamping groove is formed on the bulb.