CN216814091U - Lighting device - Google Patents

Abstract

The utility model relates to the field of illumination, in particular to an illumination device, which comprises a circuit board; and one end of the power supply terminal is electrically connected with an external power supply, the other end of the power supply terminal is electrically connected with the circuit board, and the power supply terminal and the circuit board are connected in a fixed and integrated mode. The lighting device can realize the flattening of the lighting device, simplifies the structural design and reduces the contained parts, so that the combined installation of the lighting device is simpler, the production efficiency is improved, and the manufacturing cost is reduced.

Description

Lighting device

Technical Field

The utility model relates to the field of illumination, in particular to an illumination device.

Background

With the continuous development of lighting devices, the installation of the lighting devices is also more and more convenient. Through set up the adapter that is used for being connected with lighting device at the ceiling, can make things convenient for lighting device's quick installation.

In the lighting device in the prior art, a circuit board for carrying a lighting module of the lighting device and a power terminal for connecting an external power supply are two independent parts, and the power terminal is connected with the circuit board after being fixed on an intermediate member in a threaded connection mode and the like. In order to be stably and electrically connected with the adapter, the power terminal needs to extend a long length in the thickness direction of the lighting device, so that the cost of the power terminal is increased, a large space is occupied, and the flattening of the lighting device is not facilitated. In addition, because the circuit board and the power supply terminal are separately manufactured and then assembled and fixed, the assembly and manufacturing processes are complicated, the manufacturing cost is increased, and the production efficiency is reduced. Therefore, how to simplify the structure of the circuit board and the power supply terminal of the lighting device becomes a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is at least how to use a simple device structure, on the premise of ensuring stable electric connection between a power terminal and an external power supply, reduce the overall thickness of the lighting device, enable the lighting device to be more flattened, reduce the number of parts of the lighting device which need manual or automatic assembly, and enable the assembly to be more convenient.

In view of the above problems, the present invention provides an illumination device, comprising, a circuit board; and one end of the power supply terminal is electrically connected with an external power supply, the other end of the power supply terminal is electrically connected with the circuit board, and the power supply terminal and the circuit board are connected in a fixed and integrated mode.

According to the technical scheme, the power terminal and the circuit board are connected in a fixed integrated mode, the structure of the power terminal is simplified, the space occupied by the power terminal in the lighting device is reduced, and the flattening of the lighting device is facilitated. In addition, the circuit board and the power terminal which are separately assembled originally are fixed into a whole, so that the corresponding assembling steps are reduced, the production efficiency is improved, and the manufacturing cost is reduced.

Preferably, the power terminals and the circuit board are fixedly connected by welding.

According to the technical scheme, the power terminal and the circuit board are fixedly connected through welding, so that the power terminal and the circuit board can be firmly connected, and compared with other electric connection modes, the welding can enable the contact resistance of the power terminal and the circuit board to be relatively smaller.

Preferably, the power supply terminal includes a live wire terminal and a neutral terminal, the neutral terminal is cylindrical, and the live wire terminal is elongated and disposed at the center of the neutral terminal.

According to the above technical scheme, the neutral terminal is cylindrical, and the live wire terminal is long and is arranged in the center of the neutral terminal. The live wire terminal and the zero line terminal keep a certain distance, and short circuit risks caused by too close distance between the live wire terminal and the zero line terminal are avoided. The cylindrical zero line terminal and the strip-shaped live wire terminal positioned in the center can be contacted with the zero line interface and the live wire interface corresponding to the adapter in the rotary installation process of the lighting device, and the deformation or the disconnection contact can not occur due to the rotary installation of the lighting device.

Preferably, the electronic device further comprises a housing, the housing comprises an opening portion, a bottom plate portion surrounding the opening portion, and an extension stepped portion which is formed by extending along the bottom plate portion and bending and is parallel to the bottom plate portion, wherein the power supply terminal is arranged on one side, facing the extension stepped portion, of the circuit board, and the extension stepped portion is attached to the circuit board.

According to the technical scheme, the opening part can facilitate an external power supply, for example, an adapter installed on a ceiling, and the opening part extends into the shell from the position of the opening part and is electrically connected with the power supply terminal. The circuit board is fixed by being attached to the epitaxial step part, so that a mounting structure of the circuit board with certain thickness can be omitted, the thickness of a circuit board mounting space is reduced, and the thickness of the shell is further reduced. In addition, the circuit board is fixedly attached to the epitaxial step part, the contact area between the circuit board and the epitaxial step part is large enough, and the firm degree and the stability of connection between the circuit board and the shell are improved.

Preferably, the electronic device further comprises a support part which is arranged at the opening part, is continuous with the opening part and is integrally formed, and one end of the support part is abutted with the circuit board.

According to the technical scheme, the supporting part is directly abutted to the circuit board, so that on one hand, an intermediate piece is omitted, the overall thickness of the lighting device is reduced, on the other hand, the central position of the circuit board can be supported, and the stress stability of the circuit board is facilitated.

Preferably, at least a part of the electric components on the circuit board is disposed in a cavity surrounded by the bottom plate portion, the extended step portion, the circuit board, and the support portion.

According to the technical scheme, a part of electric elements of the circuit board are arranged in the cavity formed by enclosing the bottom plate part, the circuit board, the extending step part and the supporting part, the effect of reasonably utilizing the inner space of the shell can be achieved, the overall structure of the shell is more compact, the electric elements can be subjected to concentrated heat dissipation, and the heat dissipation effect of the electric elements is improved.

Preferably, the LED lamp further comprises a light emitting module, wherein the light emitting module is arranged on the same side of the circuit board as the pins of the power supply terminals.

According to the technical scheme, the light-emitting module can emit light to realize the lighting function, the power supply terminal is arranged on one side, the light-emitting module is arranged on the other side, the arrangement space of the circuit board can be reasonably utilized, and the area of the circuit board is favorably reduced.

Preferably, the lighting device further comprises an outer edge step part which is formed by extending along the extension step part and bending and is parallel to the extension step part; a lampshade fixing part formed along the extension of the outer edge step part; and the lampshade is fixedly connected with the lampshade fixing part and covers the light-emitting module.

According to the technical scheme, the lampshade fixing part is used for fixing the lampshade, so that the lampshade can be tightly and fixedly connected with the shell. Because outer fringe step portion is extended and bent by epitaxial step portion and is formed, can keep certain distance between lamp shade and the circuit board to the graininess when reducing the luminescence of the light-emitting module group who sets up on the circuit board feels, makes light softer. In addition, the extension of the outer edge step part in the radial direction enables the area of the lampshade to be larger, and the illumination range of the illumination device is favorably improved.

Drawings

Fig. 1 is an exploded view of a lighting device according to an embodiment of the present invention.

Fig. 2 is a perspective view of the circuit board and the power supply terminal of the embodiment of the present invention.

Fig. 3 is a bottom view of the circuit board and the power supply terminal of the embodiment of the utility model.

Fig. 4 is a perspective view of the housing, the support portion, and the adapter according to the embodiment of the present invention.

Fig. 5 is a sectional view of a lighting device according to an embodiment of the present invention.

Fig. 6 is an enlarged view at a of fig. 4.

Fig. 7 is a front view of the lighting device of the embodiment of the present invention.

Reference numerals are as follows:

100 a lighting device; 1, a circuit board; 11 an electrical component; 12 a light emitting module; 2 a power supply terminal; 21 a neutral terminal; 22 a fire wire terminal; 23 pins; 3, a shell; 31 an opening part; 32 bottom plate parts; 33 extending a step portion; 34 outer edge step portion; 35 a lamp shade fixing portion; 4 a support part; 41 a snap ring; 5, a chamber; 6, a lampshade; 200 of an adapter; 7 terminal interface; 71 a zero line interface; 72 a firewire interface; a thickness direction; b radial direction.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a lighting device 100, fig. 1 is an exploded view of the lighting device 100 of the embodiment of the utility model, and as shown in fig. 1, the lighting device 100 comprises a circuit board 1, a power supply terminal 2 and a housing 3. Fig. 2 is a perspective view of the circuit board 1 and the power terminal 2 according to the embodiment of the utility model, as shown in fig. 2, the power terminal 2 is disposed in the center of the circuit board 1, the power terminal 2 is electrically connected to the circuit board 1, the circuit board 1 is used for disposing various electrical components 11 in the lighting device 100, and the electrical components 11 may be capacitors, control modules, and the like. It should be noted that the outline of the electrical component 11 in fig. 2 is only used to show the arrangement position and the approximate height of the electrical component 11, and does not represent the structure of the electrical component 11 in an actual product or in a technical solution.

The power supply terminal 2 and the circuit board 1 are connected in a fixed integral manner, and specifically, the fixed integral manner refers to a connection manner without being transferred through an intermediate member. The connection form of the fixed body omits an intermediate part with a certain thickness originally, so that the space occupied by the power terminal 2 in the thickness direction a of the lighting device 100 is reduced, and the flattening of the lighting device 100 is facilitated. In addition, the circuit board 1 which is originally indirectly fixed by the middleware is directly fixed with the power terminal 2 into a whole, so that the number of components is reduced, the number of components which need to be manually or automatically assembled before the lighting device 100 leaves a factory is reduced, and the improvement of production efficiency and the reduction of manufacturing cost are facilitated. In the present embodiment, the power terminal 2 and the circuit board 1 are fixed integrally by soldering, and the power terminal 2 and the circuit board 1 are fixed by soldering, so that the connection between the power terminal 2 and the circuit board 1 can be further secured. In addition, compared with other electrical connection modes, the welding can enable the contact resistance of the power terminal 2 and the circuit board 1 to be relatively smaller, the heat productivity of the circuit board 1 in the use process of the lighting device 100 is reduced, the welding fixing mode is convenient for using a PCB, and especially the fixed connection between the power terminal 2 and the circuit board 1 is completed through an automatic production process of a single panel. In other embodiments of the present invention, other fixing methods may be used, and are not limited herein.

The power supply terminal 2 includes a neutral terminal 21 and a live wire terminal 22, in which the neutral terminal 21 is cylindrical, and the live wire terminal 22 is elongated and disposed in the center of the neutral terminal 21. The neutral wire terminal 21 and the live wire terminal 22 are both in a central symmetry shape, so that the rotary installation scene is suitable. Live wire terminal 22 and zero line terminal 21 all are perpendicular to circuit board 1, and live wire terminal 22 also all equals with the length of zero line terminal 21 on thickness direction a for live wire terminal 21 and live wire terminal 22 can switch on or break off simultaneously in the dismouting in-process. The live terminal 22 and the neutral terminal 21 are kept at a certain distance, so that the short circuit risk caused by too close distance between the live terminal and the neutral terminal is avoided.

Fig. 3 is a bottom view of the circuit board and the power supply terminal according to the embodiment of the present invention, and as shown in fig. 3, in the embodiment, the light emitting module 12 is provided on the same side of the circuit board 1 as the pins 23 of the power supply terminal 2. The light emitting module 12 in the present embodiment includes a plurality of LED (light emitting diode) light emitting parts, and a driving circuit of the LED light emitting parts is formed on the circuit board 1. The LED has the effects of high brightness, long service life and energy conservation. In other embodiments of the present invention, other types of light emitting modules 12 can also be used.

The light emitting module 12 includes a plurality of coaxially disposed ring-shaped light strips with different radii, and each ring-shaped light strip includes a plurality of uniformly distributed LED light emitting portions. In other embodiments of the present invention, the arrangement of the light emitting modules 12 on the circuit board 1 may be adaptively adjusted according to actual needs, and is not limited to the arrangement mentioned in the present embodiment.

The "granular sensation" referred to herein means that the light-emitting portion projects a bright spot having a bright position and a dark position on the periphery of the cover surface of the lamp cover 6, and the soft light property of the lamp cover 6 itself is not sufficient to compensate or eliminate the existence of the bright spot, thereby causing the granular sensation to occur.

Fig. 4 is a perspective view of the housing 3, the support portion 4, and the adaptor 200 according to the embodiment of the present invention. As shown in fig. 4, the housing 3 is a casing that physically protects internal electrical components and prevents entry of dust, mosquitoes, and other objects, and the support portion 4 is a member for mounting the lighting device 100 on a ceiling or other location and functions to support the weight of at least a portion or the entire lighting device 100.

The lighting device 100 may be mounted to the adapter 200, and the support portion 4 is used for being fixedly connected with the adapter 200. In this embodiment, the support portion 4 may be fixed to the adaptor 200 on the ceiling plate. The adapter 200 is typically a standard component that is reserved on the ceiling or other location for mounting the lighting device 100 or other electrical appliances.

The housing 3 is provided with an opening 31 at the center, the support portion 4 is continuous and integrally formed with the opening 31 and extends along the thickness direction a of the lighting device 100, the adapter 200 is embedded into the housing 3 through the opening 31, and the outer edge of the adapter 200 is matched and fixed with the inner wall of the support portion 4. The inner wall of the support portion 4 is provided with a snap ring 41 for matching with the outer edge of the adapter 200. The snap ring 41 is matched with the outer edge of the adapter 200, so that the support part 4 can be connected with the adapter 200 more firmly, and the stability of the mechanical connection structure is improved.

In the present embodiment, the adapter 200 for connecting to the lighting apparatus 100 is provided at a position where the lighting apparatus 100 is mounted on a ceiling or the like, thereby facilitating quick mounting of the lighting apparatus 100. The support portion 4 is matched with the outer edge of the adapter 200, so that the support portion 4 and the adapter 200 can be firmly connected. Since the adaptor 200 is inserted into the housing 3 through the opening 31, and the support portion 4 surrounds the opening 31 and extends in the thickness direction a of the lighting device 100, the distance between the bottom of the lighting device 100 and the ceiling is effectively shortened when the installation is completed, and the above structure makes full use of the internal space of the housing 3, reduces the distance between the bottom of the lighting device 100 and the top of the head of the user in the assembled state, and thus reduces the space occupation in the assembled state.

The housing 3 further includes a bottom plate portion 32 surrounding the opening portion 31, and an extended step portion 33 extending along the bottom plate portion 32 and bent in parallel with the bottom plate portion 32, and the extended step portion 33 is annular as a whole.

Fig. 5 is a cross-sectional view of the lighting device 100 according to the embodiment of the present invention, and as shown in fig. 5, the outer edge of the circuit board 1 of the lighting device 100 and the lower surface of the extended step portion 33 are bonded to each other. In the present embodiment, the circuit board 1 is fixed by being attached to the extended step portion 33, which allows the mounting structure (i.e., the intermediate member) of the circuit board 1 having a certain thickness to be omitted, thereby reducing the thickness of the housing 3. In addition, the circuit board 1 is attached and fixed to the extending step portion 33, the contact area between the circuit board 1 and the extending step portion is large enough, and the firmness and the stability of connection between the circuit board 1 and the housing 3 are improved. The circuit board 1 and the extending stepped portion 33 in this embodiment are fixedly connected by screwing, and in some other embodiments of the present invention, may also be fixedly connected by bonding or the like, which is not limited herein.

Besides the outer edge of the circuit board 1 is fixedly attached to the extending stepped portion 33, the annular local area close to the center of the circuit board 1 is abutted to one end, far away from the opening portion 31, of the supporting portion 4, so that the central position of the circuit board 1 can be supported, and the stress stability of the circuit board 1 is facilitated. The supporting portion 4 and the one end (i.e., the lower end in fig. 5) of the epitaxial step portion 33 close to the circuit board 1 in this embodiment are flush, so that the circuit board 1 can be effectively limited by the epitaxial step portion 33 and the supporting portion 4, the circuit board 1 can be basically and repeatedly installed at a reasonable position, and the product quality stability of the lighting device 100 is further improved.

Since the support portion 4 is supported by an insulating plastic material in the present embodiment, when the circuit board 1 abuts against the support portion 4, no problem of conduction or short circuit occurs, which is safer.

At least a part of the electric components 11 on the circuit board 1 are arranged perpendicular to the circuit board 1 in the chamber 5 enclosed by the bottom plate portion 32, the extended step portion 33, the circuit board 1 and the support portion 4.

In the present embodiment, the arrangement of a part of the electrical components 11 of the circuit board 1 in the cavity 5 formed by the bottom plate portion 32, the circuit board 1, the extended step portion 33 and the support portion 4 can achieve the effect of making reasonable use of the internal space of the housing 3, so that the overall structure of the housing 3 is more compact. The enclosed cavity 5 has a certain thickness, at least a part of the electrical components 11 with a certain height on the circuit board 1 can be disposed in the cavity 5, and many electrical components 11 with a certain height, such as capacitors, are also heat generating components in the control circuit of the lighting device 100, i.e. the electrical components 11 with relatively large heat generation amount. By disposing at least a part of the electric components 11 collectively in the chamber 5, the heat dissipation performance for the part of the electric components 11 can also be enhanced.

Fig. 6 is an enlarged view of a portion a of fig. 4, in which the power supply terminal 2 is coaxially disposed with the snap ring 41 of the support portion 4, and the power supply terminal 2 is adapted to be inserted into the terminal interface 7 at the center of the adapter 200 shown in fig. 6 and electrically connected to the adapter 200.

When the alignment between the power terminal 2 and the terminal interface 7 is completed in the process of mounting the lighting device 100 on the adapter 200, the alignment between the snap ring 41 and the fixing mechanism on the outer edge of the adapter 200 is also completed at the same time, and the adapter 200 has the standardized terminal interface 7 for electrical connection and mechanical mounting structure. In this way, when the lighting device 100 provided in this embodiment is attached and detached, the mechanical part and the electrical part between the lighting device 100 and the adapter 200 can be simultaneously attached and detached, and the attachment and detachment of the lighting device 100 are more convenient.

When the assembly is completed, the cylindrical neutral terminal 21 is in matching contact with the circular groove-shaped neutral interface 71 of the junction block 200 in fig. 6, and the elongated live terminal 22 is in matching contact with the live interface 72 at the center of the junction block 200 in fig. 6. The user can fix the lighting device 100 to the adapter 200 by means of rotation and engagement, and the cylindrical neutral terminal 21 and the long-strip-shaped live wire terminal 22 located at the center can be in contact with the neutral interface 71 and the live wire interface 72 corresponding to the adapter 200 during rotation of the lighting device 100, so that the problem of electrical disconnection caused by rotation and installation of the lighting device 100 is avoided.

Fig. 7 is a front view of the lighting device 100 according to the embodiment of the present invention, and as shown in fig. 7, the lighting device 100 further includes a lamp cover 6 covering the front side of the housing 3, where the front side of the housing 3 is a side close to a user when the housing 3 is completely mounted, that is, a side below the thickness direction a in fig. 7 in the present embodiment. The housing 3 includes an outer edge step portion 34 extending along the extended step portion 33 and bent to be parallel to the extended step portion 33, and since the outer edge step portion 34 is formed by extending and bending the extended step portion 33, a certain distance can be maintained between the lampshade 6 and the circuit board 1 (shown in fig. 5), so that the granular sensation of the light emitting module 12 (shown in fig. 5) during light emitting is reduced, and the light is softer. In addition, the extension of the outer edge step portion 34 in the radial direction b enlarges the area of the globe 6, which is advantageous for increasing the illumination range of the illumination device 100.

In this embodiment, the housing 3 has a lampshade fixing portion 35 extending along the outer edge step portion 34, the lampshade 6 is fixedly connected with the lampshade fixing portion 35 to cover the light emitting module 12, and the lampshade 6 and the lampshade fixing portion 35 can be fixedly connected by adopting a screw thread, a buckle, an adhesive or any other suitable manner.

Those of skill in the art will appreciate that the specific features of the various embodiments may be adaptively separated or combined. Such splitting or combining of specific technical features does not cause the technical solutions to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or combining will fall within the protection scope of the present invention. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A lighting device is provided, which comprises,

a circuit board;

a power terminal having one end electrically connected to an external power source and the other end electrically connected to the circuit board,

the power supply terminal is connected with the circuit board in a fixed and integrated mode, and the power supply terminal comprises a live wire terminal and a zero wire terminal;

the zero line terminal is cylindrical, the live wire terminal is long-strip-shaped and is arranged in the center of the zero line terminal, or

The live wire terminal is cylindric, the zero line terminal is rectangular form and sets up the central authorities of live wire terminal.

2. The lighting device of claim 1, wherein the power terminals are fixedly connected to the circuit board by soldering.

3. The lighting device according to claim 1 or 2, further comprising a housing including an opening portion, a bottom plate portion surrounding the opening portion, an extended step portion extending along the bottom plate portion and bent to be formed in parallel with the bottom plate portion, wherein,

the power supply terminal sets up the circuit board is towards one side of epitaxial step portion, epitaxial step portion with the laminating of circuit board.

4. The lighting device according to claim 3, further comprising a support portion provided at the opening portion, continuous with the opening portion, and integrally formed, one end of the support portion abutting against the circuit board.

5. The illumination device of claim 4,

at least a part of the electric elements on the circuit board are arranged in a cavity formed by enclosing the bottom plate part, the extension step part, the circuit board and the supporting part.

6. A lighting device as recited in claim 4 or 5, further comprising a light emitting module,

the light emitting module is arranged on one side of the circuit board, which is the same as the pins of the power supply terminal.

7. The illumination device of claim 6, further comprising,

an outer edge step portion extending along the extended step portion and formed by bending and being parallel to the extended step portion;

a lampshade fixing part formed by extending along the outer edge step part;

and the lampshade is fixedly connected with the lampshade fixing part and covers the light-emitting module.

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