CN103867937A - LED lighting - Google Patents

Abstract

An LED lighting device, comprising: a lamp head shell with a light outlet; the reflector plate is arranged at the light outlet of the lamp holder shell, is an elastic plate and is provided with a bottom surface and a reflecting surface opposite to the bottom surface; the LED light-emitting module penetrates through the reflecting sheet, and the light-emitting part of the LED light-emitting module is positioned on the reflecting surface; one end of the push rod is provided with a plurality of supporting parts arranged at intervals, the other end of the push rod is provided with a threaded part, and free ends of the supporting parts are rotatably connected with the middle part of the bottom surface of the reflector plate; one end of the adjusting rod is provided with a thread matching part which is screwed with the thread part; when the adjusting rod is rotated in the forward direction, the thread matching part is matched with the thread part, so that the push rod moves towards the light outlet and pushes the middle part of the reflecting sheet, and the reflecting surface is a convex surface; when the adjusting rod is rotated reversely, the push rod moves towards the direction far away from the light outlet and pulls the middle part of the reflecting sheet, so that the reflecting surface is a concave surface. The LED lighting device can realize conversion between floodlight and spotlight, and is simple to operate and convenient to adjust.

Description

LED lighting

【Technical field】

The invention relates to a lighting tool, in particular to an LED lighting device which can be adjusted for spotlight and floodlight.

【Background technique】

For the convenience of use, it is often necessary to adjust the spotlight and floodlight requirements of the lamps according to different needs. Generally, the lamps only have spotlight or floodlight, and it is difficult to realize the conversion between spotlight and floodlight.

【Content of invention】

In view of the above situation, it is necessary to provide an LED lighting device capable of switching between spotlight and floodlight.

An LED lighting device comprising:

The lamp head shell has a light outlet;

A reflective sheet arranged at the light outlet of the lamp holder, the reflective sheet is an elastic sheet, and the reflective sheet has a bottom surface and a reflective surface opposite to the bottom surface;

LED light-emitting module, through the reflective sheet, and its light-emitting part is located on the reflective surface;

A push rod, one end is provided with a plurality of support parts arranged at intervals, and the other end is provided with a threaded part, the free ends of the plurality of support parts are rotatably connected to the middle part of the bottom surface of the reflection sheet; and

An adjusting rod, one end of which is provided with a thread fitting part, and the thread fitting part is screwed with the thread part;

Wherein, when the adjustment rod is rotated in the forward direction, the threaded fitting part cooperates with the threaded part, so that the push rod moves toward the light outlet, and pushes the middle part of the reflection sheet, so that the The reflective surface is convex; when the adjusting rod is rotated in reverse, the push rod moves away from the light outlet and pulls the middle of the reflective sheet, so that the reflective surface is concave.

The above-mentioned LED lighting device is screwed with the push rod through the adjusting rod, so that the push rod is pushed forward or pulled backward, and the push rod drives the reflective sheet to undergo elastic deformation. When the push rod is pushed forward, the reflective surface of the reflective sheet is convex. The light of the LED lighting device is adjusted to be floodlight, and when the push rod is pulled backward, the reflective surface of the reflective sheet is concave, so that the lamp head of the LED lighting device is adjusted to focus. Therefore, the above-mentioned LED lighting device can realize the conversion of floodlight and spotlight, and is easy to operate and convenient to adjust.

In one of the embodiments, the support part is an arc-shaped support piece, and the plurality of support parts are arranged around the end of the push rod to form a rounded truncated support structure; the support part and the One end of the reflective sheet is connected with a through hole, and the bottom surface of the reflective sheet is provided with a plurality of connecting rings, and the plurality of connecting rings respectively pass through the through holes of the plurality of supporting parts, so that the supporting part and the The bottom surfaces of the reflecting sheets are rotatably connected.

In one embodiment, the threaded portion is a screw hole provided on the end surface of one end of the push rod, and the adjusting rod is a screw threaded with the screw hole.

In one of the embodiments, the threaded part is a stud provided at one end of the push rod, and the threaded fitting part is a screw hole provided at the end surface of one end of the adjusting rod, and the stud and the screw The holes are screwed together.

In one embodiment, the reflective sheet is a circular elastic sheet, and the plurality of supporting parts are arranged symmetrically around the center of the reflective sheet, so that the reflective sheet can be deformed into a curved reflector.

In one of the embodiments, the reflective sheet is a regular polygon, and the reflective sheet is provided with folding lines along the radius of the regular polygon, so that the reflective sheet can be deformed into a pyramid-shaped reflector.

In one of the embodiments, two blocking flanges arranged at intervals are provided on the inner wall of the light outlet of the lamp cap, and the blocking flanges extend along the circumferential direction of the lamp cap, and the peripheral edge of the reflective sheet engages held between the two blocking flanges and rotatable between the two blocking flanges;

The LED lighting device also includes a lamp tube, the lamp tube is rotatably connected to the lamp head shell, the adjusting rod is fixedly connected to the lamp tube, and the adjusting rod is driven to rotate by rotating the lamp tube; The adjustment rod cooperates with the push rod to drive the reflective sheet, so that the reflective sheet abuts against one of the two blocking flanges and deforms.

In one of the embodiments, the end of the adjusting rod opposite to the threaded fitting part is fixed on the bottom of the lamp tube, and the lamp tube and the lamp cap jointly form an accommodating cavity, the adjusting rod, Both the push rod and the reflection sheet are installed in the accommodating cavity.

In one of the embodiments, the outer periphery of the lamp cap is provided with anti-slip teeth.

In one of the embodiments, it also includes a motor and a control module, the end of the adjustment rod opposite to the threaded fitting part is connected to the drive shaft of the motor, the motor drives the adjustment rod to rotate, and the control module Used to control the working state of the motor.

【Description of drawings】

1 is a perspective view of an LED lighting device according to an embodiment of the present invention;

Fig. 2 is a partial sectional view of the LED lighting device shown in Fig. 1;

FIG. 3 is a partial schematic diagram of the LED lighting device shown in FIG. 1;

Fig. 4 is a partial schematic diagram of another viewing angle of the LED lighting device shown in Fig. 1;

Fig. 5 is a state diagram when the LED lighting device shown in Fig. 1 is adjusted to focus;

Fig. 6 is a state diagram of the LED lighting device shown in Fig. 1 when it is adjusted to floodlight.

【Detailed ways】

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 and FIG. 2 , the LED lighting device 100 according to the embodiment of the present invention includes a lamp housing 110 , a reflector 120 , an LED lighting module 130 , a push rod 140 and an adjustment rod 150 . The lamp housing 110 is used to carry the reflector 120 , and the LED lighting module 130 is the light source of the LED lighting device 100 . The adjustment rod 150 cooperates with the push rod 140 and is used to drive the reflection sheet 120 to deform, so that the reflection sheet 120 performs the conversion between light-gathering reflection and flood reflection.

The lamp housing 110 has a light outlet 111 . Specifically, in the illustrated embodiment, the lamp cap 110 is cylindrical, but in the present invention, the lamp cap 110 is not limited to be cylindrical.

Please refer to FIG. 3 and FIG. 4 together. The reflective sheet 120 is disposed on the light outlet 111 of the lamp housing 110 . The reflection sheet 120 is an elastic sheet, and the reflection sheet 120 has a bottom surface 121 and a reflection surface 123 opposite to the bottom surface 121 . The reflective sheet 120 may be a metal sheet with high reflectivity, and at this time the reflective surface 123 is directly the surface of the metal sheet. Alternatively, the reflective sheet 120 is a non-reflective elastic sheet. At this time, the reflective surface 123 is coated with a reflective layer on the surface of the elastic sheet, or pasted with a layer of reflective film on the surface of the elastic sheet.

Specifically, in the illustrated embodiment, the reflective sheet 120 is a circular elastic sheet, so that the reflective sheet 120 can be deformed into a curved reflector.

In other embodiments, the reflective sheet 120 is a regular polygon, and the reflective sheet 120 is provided with folding lines along the radius of the regular polygon, so that the reflective sheet 120 can be deformed into a pyramid-shaped reflector.

The LED lighting module 130 passes through the reflective sheet 120 , and its light emitting part is located on the reflective surface 123 . There can be multiple LED light emitting modules 130, which can be arranged in circular, rectangular and other arrays. For example, when the reflector 120 can be deformed into an arc reflector, a plurality of LED light-emitting modules 130 are arranged in a circular array at this time, so that the LED light-emitting modules 130 are evenly distributed around the center of the reflector 120, so that multiple The LED light-emitting modules 130 emit light evenly after being emitted by the reflective sheet 120 . Similarly, when the reflection sheet 120 can be deformed into a quadrangular pyramid reflector, a plurality of LED lighting modules 130 are arranged in a rectangular array.

One end of the push rod 140 is provided with a plurality of spaced support portions 141 , and the other end is provided with a threaded portion 143 . Free ends of the plurality of support portions 141 are rotatably connected to the middle of the bottom surface 121 of the reflection sheet 120 . Specifically, in the illustrated embodiment, the support portion 141 is an arc-shaped support piece, and a plurality of support portions 141 are arranged around the end of the push rod 140 to form a rounded truncated support structure. One end of the support portion 141 connected to the reflection sheet 120 is provided with a through hole, and the bottom surface 121 of the reflection sheet 120 is provided with a plurality of connection rings 125, and the plurality of connection rings 125 pass through the through holes of the plurality of support portions 141 respectively, so that the support portion 141 It is rotatably connected with the bottom surface 121 of the reflection sheet 120 .

Further, a plurality of supporting parts 141 are arranged symmetrically around the center of the reflection sheet 120 so as to facilitate the deformation of the reflection sheet 120 into a curved reflector.

It should be noted that the supporting portion 141 is not limited to being an arc-shaped supporting piece, and may also be a rod-shaped object of other shapes. In addition, the supporting part 141 is not limited to the rotatable connection with the reflective sheet 120 in the way of the connecting ring 125 and the through hole, and other methods can also be used. For example, the supporting part 141 can be rotatably connected with the reflective sheet 120 in the form of a rotating shaft. connect.

One end of the adjusting rod 150 is provided with a threaded fitting portion 151 , and the threaded fitting portion 151 is screwed with the threaded portion 143 of the push rod 140 . Specifically, in the illustrated embodiment, the threaded portion 143 is a screw hole provided on the end surface of one end of the push rod 140 , and the adjusting rod 150 is a screw that is screwed into the screw hole.

In other embodiments, the threaded part 143 is a stud provided at one end of the push rod 140 , the threaded matching part 151 is a screw hole provided at the end surface of one end of the adjusting rod 150 , and the stud is screwed into the screw hole.

Wherein, when the adjusting rod 150 is rotated forward, the threaded fitting part 151 cooperates with the threaded part 143, so that the push rod 140 moves toward the light outlet 111 of the lamp housing 110, and pushes the middle part of the reflective sheet 120, so that the reflective surface 123 is Convex surface; when the adjusting rod 150 is rotated in reverse, the push rod 140 moves toward the light outlet 111 away from the lamp head housing 110, and pulls the middle of the reflective sheet 120, so that the reflective surface 123 is concave.

Please refer to FIG. 1 and FIG. 2 again. Furthermore, in order to facilitate the rotation of the adjusting rod 150 , the LED lighting device 100 further includes a lamp tube 160 . The inner wall of the light outlet 111 of the lamp housing 110 is provided with two spaced blocking flanges (not shown in the figure), the blocking flanges extend along the circumference of the lamp housing, and the peripheral edge of the reflector 120 is clamped on the two blocking flanges. Between, and can be rotatable between two blocking flanges. The lamp tube 160 is rotatably connected with the lamp head shell 110, and the adjusting rod 150 is fixedly connected with the lamp tube 160. By rotating the lamp tube 160, the adjusting rod 150 is driven to rotate. The sheet 120 is deformed by abutting against one of the two blocking flanges. Specifically, in the illustrated embodiment, the end of the adjusting rod 150 opposite to the threaded fitting part 151 is fixed on the bottom of the lamp tube 160, and the lamp tube 160 and the lamp cap shell 110 together form a housing cavity (not shown in the figure), and the adjusting rod 150 , the push rod 140 and the reflection sheet 120 are all installed in the accommodating cavity. In other words, since the lamp cap 110 is rotatably connected to the lamp barrel 160, in actual operation, turning the lamp cap 110 or the lamp barrel 160 can drive the push rod 140 and the adjusting rod 150 to rotate relative to each other, thereby driving the reflector 120 to deform. .

Further, the lamp cap 110 is sleeved on the lamp tube 160, and the outer wall of the lamp tube 160 is provided with two spaced positioning grooves (not shown in the figure), and the inner wall of the lamp cap 110 is provided with a first positioning protrusion (not shown in the figure). shown) and the second positioning protrusion (not shown in the figure), when the lamp cap 110 rotates relative to the lamp tube 160 to the position where the first positioning protrusion engages with the positioning groove, the reflecting surface 123 of the reflecting sheet 120 becomes a convex surface ; When the lamp cap 110 rotates relative to the lamp tube 160 to the position where the second positioning protrusion engages with the positioning groove, the reflective surface 123 of the reflective sheet 120 becomes a concave surface. Therefore, the first positioning protrusion and the second positioning protrusion of the lamp housing cooperate with the positioning groove of the lamp tube 160 , so as to accurately and quickly adjust the reflecting sheet 120 .

Furthermore, in order to facilitate the rotation of the lamp cylinder 160 or the lamp cap 110 , the outer periphery of the lamp cap 110 is provided with anti-slip tooth lines 113 . During the operation, the operator can directly hold the anti-slip teeth 113 of the lamp cap 110 with hands or tools, so as to prevent the lamp cap 110 from sliding due to insufficient friction during operation.

In other embodiments, in order to conveniently and automatically control the rotation of the adjusting rod 150, the LED lighting device 100 further includes a motor and a control module, and the end of the adjusting rod 150 opposite to the threaded part 151 is connected to the drive shaft of the motor, and the motor drives The adjusting rod 150 rotates, and the control module is used to control the working state of the motor.

Please refer to Fig. 5 and Fig. 6 at the same time. When it is necessary to adjust the working state of the LED lighting device 100, the lamp head shell 110 or the lamp tube 160 is rotated in the forward direction. 140 is screwed together to push the push rod 140 forward, and the reflective surface 123 of the reflective sheet 120 becomes a convex surface. At this time, the light of the LED lighting device 100 becomes flood light; 150 is fixedly connected with the lamp tube 160, and the push rod 140 is pulled backward through the screw fit of the adjusting rod 150 and the push rod 140, and the reflective surface 123 of the reflective sheet 120 becomes a concave surface, and at this time, the light of the LED lighting device 100 becomes a concentrated light. .

The above-mentioned LED lighting device 100 is screwed with the push rod 140 through the adjustment rod 150, so that the push rod 140 is pushed forward or pulled backward, and the push rod 140 drives the reflective sheet 120 to undergo elastic deformation. When the push rod 140 is pushed forward, the reflection The reflective surface 123 of the sheet 120 is a convex surface, so that the light of the LED lighting device 100 is adjusted to be floodlight. Light. Therefore, the above-mentioned LED lighting device 100 can realize the conversion of floodlight and spotlight, and is easy to operate and convenient to adjust.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. a LED lighting device, is characterized in that, comprising:

Lamp head shell, has light-emitting window;

Reflector plate, is located at the light-emitting window of described lamp head shell, and described reflector plate is a flexure strip, and described reflector plate has bottom surface and the reflecting surface relative with described bottom surface;

LED illuminating module, wears described reflector plate, and its luminous site is on described reflecting surface;

Push rod, one end is provided with multiple spaced support portions, and the other end is provided with threaded portion, and the middle part of the free end of described multiple support portions and the bottom surface of described reflector plate is rotatably connected; And

Adjusting rod, its one end is provided with thread fiting part, and described thread fiting part and described threaded portion are screwed;

Wherein, in the time being rotated in the forward described adjusting rod, described thread fiting part matches with described threaded portion, and described push rod is moved towards described light-emitting window, and promote the middle part of described reflector plate, be convex surface thereby make described reflecting surface; When reverse rotation is when described adjusting rod, described push rod is towards moving away from described light-emitting window, and pulls the middle part of described reflector plate, is concave surface thereby make described reflecting surface.

2. LED lighting device as claimed in claim 1, is characterized in that, described support portion is arc support chip, and described multiple support portion is around the end setting of described push rod, to form the supporting construction of reverse frustoconic; Described support portion is provided with through hole with one end that described reflector plate is connected, the bottom surface of described reflector plate is provided with multiple connecting rings, described multiple connecting ring through the through hole of described multiple support portions, is rotatably connected the bottom surface of described support portion and described reflector plate respectively.

3. LED lighting device as claimed in claim 1, is characterized in that, described threaded portion is the screw of being located on the end face of described push rod one end, and described adjusting rod is the screw rod being screwed with described screw.

4. LED lighting device as claimed in claim 1, is characterized in that, described threaded portion is the double-screw bolt of being located at described push rod one end, and described thread fiting part is the screw of being located at the end face of described adjusting rod one end, and described double-screw bolt and described screw are screwed.

5. LED lighting device as claimed in claim 1, is characterized in that, described reflector plate is circular shell fragment, and described multiple support portions are symmetrical arranged around the center of circle of described reflector plate, so that described reflector plate deformable is curved reflector.

6. LED lighting device as claimed in claim 1, is characterized in that, described reflector plate is regular polygon, and described reflector plate is provided with broken line along the radius of regular polygon, so that described reflector plate deformable is pyramid reflector.

7. LED lighting device as claimed in claim 1, it is characterized in that, the inwall of the light-emitting window of described lamp head shell is provided with two spaced stop flanges, described stop flange is along the circumferential extension of described lamp head shell, the periphery of described reflector plate is held between described two stop flanges, and can be rotatable between described two stop flanges;

Described LED lighting device also comprises lamp cylinder, and described lamp cylinder and described lamp head shell are rotatably connected, and described adjusting rod is fixedly connected with described lamp cylinder, drives described adjusting rod to rotate by rotating described lamp cylinder; Described adjusting rod matches with described push rod and drives described reflector plate, makes one in described reflector plate and described two stop flanges connect and deformation occurs.

8. LED lighting device as claimed in claim 7, it is characterized in that, the bottom of described lamp cylinder is fixed in one end that described adjusting rod is relative with described thread fiting part, an accommodating cavity of the common formation of described lamp cylinder and described lamp head shell, described adjusting rod, push rod, reflector plate are all installed in described accommodating cavity.

9. LED lighting device as claimed in claim 1, is characterized in that, the outer peripheral edges of described lamp head shell are provided with anti-skidding groove.

10. LED lighting device as claimed in claim 1, it is characterized in that, also comprise motor and control module, one end that described adjusting rod is relative with described thread fiting part is connected with the driving shaft of described motor, described motor drives described adjusting rod to rotate, and described control module is for controlling the duty of described motor.

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