CN103672748B - Light-source structure and the Projecting Lamp containing the light-source structure - Google Patents

Abstract

A light source structure and a projection lamp containing the light source structure. The light source structure includes: a lamp housing with a light outlet, and a narrow hole is opened on the bottom of the lamp housing opposite to the light outlet; two support seats are fixed in the lamp housing. and arranged at intervals; the reflector is arranged between the two support seats, and the two ends of the reflector are rotatably connected to the two support seats respectively; the reflector has a storage cavity, and a through hole is opened at the bottom of the storage cavity; the light source The fixing seat passes through the through hole and is fixed in the lamp housing; the light source is arranged on the light source fixing seat and is accommodated in the storage cavity of the reflector; the adjustment part is fixedly connected with the bottom outside of the reflector, the adjustment part passes Through the narrow hole, and the free end of the adjusting part is exposed outside the lamp housing; among them, part of the light emitted by the light source is reflected by the reflector, and then emitted from the light outlet of the lamp housing; the adjusting part can slide in the narrow hole , and drive the reflector to rotate relative to the support base. The above light source structure can provide various lighting effects.

Description

Light source structure and flood light containing the light source structure

【Technical field】

The invention relates to a light source structure and a projecting lamp containing the light source structure, in particular to a light source structure with an adjustable illumination angle and a projecting lamp containing the light source structure.

【Background technique】

In ordinary lamps, the lighting effect of the light source structure of the lamp is usually determined by the reflector, in which factors such as the shape of the reflective surface of the reflector, the position of the focus and the light source determine the final lighting effect of the lamp. Existing lamp reflectors are generally directly fixed on the lamp housing by technical means such as screws or glue. The disadvantage of adopting this design method is that the lamp can only provide a single lighting effect, and the lighting effect is determined during the optical design of the lamp. It cannot provide a variety of light distribution effects, and it is not suitable for occasions that need to provide multiple lighting effects. .

【Content of invention】

In view of the above situation, it is necessary to provide a light source structure that can provide various lighting effects.

A light source structure comprising:

The lamp housing has a light outlet, and the bottom of the lamp housing opposite to the light outlet is provided with a narrow hole;

Two supporting bases are fixed in the lamp housing and arranged at intervals;

The reflector is arranged between the two support bases, and the two ends of the reflector are respectively rotatably connected to the two support bases. The reflector has a storage cavity, and at the bottom of the storage cavity open with through holes;

The light source fixing seat passes through the through hole and is fixed in the lamp housing;

The light source is arranged on the light source fixing seat and accommodated in the receiving cavity of the reflector; and

An adjustment piece is fixedly connected to the outside of the bottom of the reflector, the adjustment piece passes through the narrow hole, and the free end of the adjustment piece is exposed outside the lamp housing;

Wherein, after being reflected by the reflector, part of the light emitted by the light source is emitted from the light outlet of the lamp housing; when the adjusting member is moved, the adjusting member can slide in the narrow hole to drive the The reflector rotates relative to the support seat.

Compared with the traditional light source structure, the above light source structure has at least the following advantages:

(1) The reflector of the above-mentioned light source structure is rotatably connected to the support seat, and the reflector is rotated by the adjusting member, so that the rotation angle of the reflector can be adjusted within a certain range, so that the light emitted by the light source can be emitted from multiple angles, And the illumination intensity can be adjusted, therefore, the above-mentioned light source structure has the illumination effect of multi-angle and multi-illuminance.

(2) The above light source structure changes the lighting angle by adjusting the position of the reflector, so that the installation position of the entire lighting fixture is more flexible, the use range of the lighting fixture is improved, and the workload of installation is reduced at the same time. For example, in some cases where the space is small or the shape of the space is not conducive to the installation of lighting fixtures, the lighting fixtures can be installed in a position that is convenient for installation, and then the irradiation angle can be adjusted.

In one of the embodiments, the lamp housing is a semi-cylindrical shell, the reflector is a semi-cylindrical cover, the axis of the reflector is parallel to the axis of the lamp housing, and The two supporting bases are respectively rotatably connected to the two semicircular end faces of the reflector.

In one embodiment, the narrow hole is an arc-shaped hole extending along the circumference of the lamp housing.

In one of the embodiments, each of the two semicircular end surfaces of the reflector is provided with a rotating shaft, one of the two supporting bases is provided with a shaft hole, and the other is provided with a bayonet socket, and the two The rotating shaft respectively passes through the shaft hole and the bayonet socket, and is locked by a threaded fixing member, so that the reflector is rotatably connected to the two supporting seats.

In one embodiment, the through hole is an arc-shaped hole extending along the axial direction of the reflector, and the light source fixing base slides relatively along the edge of the through hole when the reflector rotates.

In one of the embodiments, there are two light source fixing seats, two through holes are correspondingly opened in the bottom of the storage cavity by the reflector, and the light source is arranged parallel to the axial direction of the reflector linear light source, and the two ends of the light source are respectively fixedly connected to the two light source fixing seats.

In one of the embodiments, a limiting mechanism is further included, and the limiting mechanism is connected to the free end of the adjusting member exposed from the lamp housing, so as to position the adjusting member in the narrow hole.

In one of the embodiments, the limiting mechanism includes:

The limiting plate is fixed on the outside of the bottom of the lamp housing, and a limiting hole is opened on the limiting plate;

The limiting shaft is fixedly connected with the free end of the adjustment member exposed to the lamp housing, the limiting shaft passes through the limiting hole, and can slide along the limiting hole, the limiting shaft the free end is externally threaded; and

The limit nut is screwed with the external thread of the free end of the limit shaft, so as to fix the limit shaft in the limit hole.

In one of the embodiments, the limiting mechanism includes:

The limiting plate is fixed on the outside of the bottom of the lamp housing. The limiting plate is provided with a limiting hole, and the edge of the limiting hole is provided with a plurality of locking positions arranged at intervals;

The limiting shaft is fixedly connected with the free end of the adjustment member exposed to the lamp housing, the limiting shaft passes through the limiting hole, and can slide along the limiting hole, the limiting shaft The free end is provided with an engaging portion, and the engaging portion can selectively elastically engage with one of the plurality of locking positions.

At the same time, the present invention also provides a floodlight including the above-mentioned light source structure.

A floodlight comprising:

the above light source structure; and

The two ends of the U-shaped bracket are respectively rotatably connected to the two ends of the lamp housing, and the rotation axis of the U-shaped bracket is parallel to the axial direction of the lamp housing.

【Description of drawings】

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

Fig. 2 is a perspective view of the light source structure of the lighting fixture shown in Fig. 1;

Fig. 3 is a perspective view of another viewing angle of the light source structure of the lighting fixture shown in Fig. 1;

FIG. 4 is an exploded view of the light source structure of the lighting fixture shown in FIG. 1 .

【detailed description】

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.

Referring to FIG. 1 , a lighting fixture 10 according to an embodiment of the present invention includes a light source structure 100 and a U-shaped bracket 200 . The U-shaped bracket 200 is connected to the light source structure 100 for supporting the light source structure 100 . The lighting fixture 10 can be a floodlight, a wall lamp, a corner lamp, etc. Specifically, in the illustrated embodiment, the floodlight is taken as an example for illustration. The two ends are rotatably connected, and the rotation axis of the U-shaped bracket 200 is parallel to the axial direction of the lamp housing. Because the reflective direction of the floodlight shown in the figure is adjustable, the floodlight has a wide range of applications and can be used in ports, docks, cinemas, auditoriums, theaters and other occasions.

Referring to FIGS. 2 to 4 , the light source structure 100 includes a lamp housing 110 , a support base 120 , a reflector 130 , a light source fixing base 140 , a light source 150 , an adjusting member 160 and a limiting mechanism 170 . The light source fixing seat 140 is used for installing the light source 150 and fixing the light source 150 in the lamp housing 110 . The reflector 130 is used to reflect the light emitted by the light source 150 to the outside, and the reflector 130 is assembled in the lamp housing 110 through the support seat 120 . The limit mechanism 170 is used to control the rotational position of the reflector 130 .

The lamp housing 110 has a light outlet 111 , and a narrow hole 113 is defined at the bottom of the lamp housing 110 opposite to the light outlet 111 . Specifically, in the illustrated embodiment, the lamp housing 110 is a semi-cylindrical shell, the light outlet 111 is set on the rectangular section of the semi-cylindrical shell, and the narrow hole 113 is set on the arc of the semi-cylindrical shell. on the side. The narrow hole 113 is an arc-shaped hole extending along the circumference of the lamp housing 110 . Of course, in the present invention, the narrow hole 113 is not limited to being an arc-shaped hole. In addition, in order to increase the heat dissipation efficiency of the lamp housing 110 , a plurality of elongated heat dissipation ribs 115 are provided on the outside of the bottom of the lamp housing 110 . Through the heat dissipation ribs 115 , the heat dissipation area of the lamp housing 110 can be increased, and the heat dissipation ribs 115 can be equivalent to reinforcing ribs to increase the structural strength of the lamp housing 110 and prevent the lamp housing 110 from being deformed.

There are two supporting bases 120, which are fixed in the lamp housing 110 and arranged at intervals. Specifically, in the illustrated embodiment, the two support seats 120 are both L-shaped fixing plates. One of the support bases 120 is provided with a shaft hole, and the other support base 120 is provided with a bayonet socket.

The reflector 130 is disposed between the two support bases 120 , and the two ends of the reflector 130 are rotatably connected to the two support bases 120 respectively. The reflector 130 has a receiving cavity 131 , and a through hole 133 is opened at the bottom of the receiving cavity 131 . Specifically, in the illustrated embodiment, the reflector 130 is a semi-cylindrical cover, the axial direction of the reflector 130 is arranged parallel to the axial direction of the lamp housing 110, and the two supporting bases 120 are respectively connected to the two sides of the reflector 130. The semicircular end faces can be rotatably connected.

Preferably, the two semicircular end faces of the reflector 130 are respectively provided with a rotating shaft 135, and the two rotating shafts 135 respectively pass through the shaft hole of one of the support bases 120 and the bayonet socket of the other support base 120, and are fixed by threads The reflector 130 and the two supporting bases 120 are rotatably connected. When installing the reflector 130, first pass one of the rotating shafts 135 through the shaft hole of the supporting base 120, then engage the other rotating shaft 135 in the bayonet of the supporting base 120, and finally use threaded fasteners such as hexagonal nuts It is fixed on the free ends of the two rotating shafts 135, thereby preventing the two rotating shafts 135 from falling off. When the reflector 130 needs to be replaced, it is only necessary to loosen the threaded fixing member and pull it out directly from the shaft holes and bayonet sockets of the two supporting seats 120 . Therefore, it is more convenient to install or disassemble the above-mentioned rotatable connection.

The light source fixing seat 140 passes through the through hole 133 of the reflector 130 and is fixed in the lamp housing 110 . Specifically, in the illustrated embodiment, the through hole 133 of the reflector 130 is an arc-shaped hole extending along the circumference of the reflector 130 , and the light source fixing base 140 relatively slides along the edge of the through hole 133 when the reflector 130 rotates. Because the light source fixing seat 140 cooperates with the through hole 133 of the reflector 130, the light source fixing seat 140 acts as a guide to prevent the reflector 130 from rotating because the rotating shaft 135 of the reflector 130 is in contact with the shaft hole and the card of the support seat 120. Mouth size difference is large and swings from side to side.

The light source 150 is disposed on the light source fixing base 140 and accommodated in the receiving cavity 131 of the reflector 130 . Specifically, in the illustrated embodiment, the light source 150 is a linear light source arranged parallel to the axial direction of the reflector 130, such as a cold cathode fluorescent lamp, a double-ended metal halide lamp, etc., and the two ends of the light source 150 are respectively connected to two light source fixing seats. 140 fixed connections. There are two light source fixing seats 140 , and the reflector 130 defines two through holes 133 correspondingly at the bottom of the storage cavity 131 . Certainly, in the present invention, the light source 150 is not limited to being a linear light source, and may also be a point light source or a small double-sided light source. A through hole 133 is correspondingly opened at the bottom of the bottom.

The adjustment piece 160 is fixedly connected to the bottom outer side of the reflector 130 , and the adjustment piece 160 passes through the narrow hole 113 of the lamp housing 110 . The free end of the adjusting member 160 is exposed outside the lamp housing 110 , so that the reflector 130 can be rotated through the adjusting member 160 outside the lamp housing 110 . Among them, part of the light emitted by the light source 150 is reflected by the reflector 130, and then emitted from the light outlet 111 of the lamp housing 110; the adjustment member 160 is moved, and the adjustment member 160 can slide in the narrow hole 113 of the lamp housing 110 to drive the reflector. 130 rotates relative to the support base 120 .

The limiting mechanism 170 is connected to the free end of the adjusting member 160 exposed on the lamp housing 110 to position the adjusting member 160 in the narrow hole 113 of the lamp housing 110 . Due to the use of the limiting mechanism 170, the adjusting member 160 can be conveniently positioned at a predetermined position, so that the reflector 130 can be rotated and positioned at a predetermined angle.

Specifically, in the illustrated embodiment, the limiting mechanism 170 includes a limiting plate 171 , a limiting shaft 173 and a limiting nut 175 . The limiting plate 171 is fixed on the outside of the bottom of the lamp housing 110 , and a limiting hole 171 a is defined on the limiting plate 171 . The limiting shaft 173 is fixedly connected with the free end of the adjusting member 160 exposed on the lamp housing 110, the limiting shaft 173 passes through the limiting hole 171a, and can slide along the limiting hole 171a, and the free end of the limiting axis 173 is provided with an external thread . The limit nut 175 is screwed with the external thread of the free end of the limit shaft 173 to fix the limit shaft 173 in the limit hole 171a. When the rotation position of the reflector 130 needs to be adjusted, the adjuster 160 is driven to rotate the reflector 130 to a predetermined angle, and then the limit nut 175 is locked to fix the limit shaft 173 to position the adjuster 160 .

Specifically, the limiting plate 171 includes an annular bottom plate and an arc-shaped side plate that is substantially perpendicular to the bottom plate. The limiting hole 171a is opened on the side plate. The same, that is, the bottom plate just fits on the arc-shaped side wall of the lamp housing 110 , and the side plate extends parallel to the axial direction of the arc-shaped outer wall of the lamp housing 110 .

In other embodiments, the limiting mechanism 170 includes a limiting plate 171 and a limiting shaft 173 . The limiting plate 171 is fixed on the outside of the bottom of the lamp housing 110. The limiting plate 171 defines a limiting hole 171a, and the edge of the limiting hole 171a is provided with a plurality of detents arranged at intervals. The limiting shaft 173 is fixedly connected with the free end of the adjusting member 160 exposed on the lamp housing 110 , the limiting shaft 173 passes through the limiting hole 171 a, and is slidable along the limiting hole 171 a. The free end of the limiting shaft 173 is provided with an engaging portion, and the engaging portion can selectively elastically engage with one of the plurality of locking positions.

It should be noted that, in the invention, the limit mechanism 170 can also be omitted. For example, when the adjustment member is adjusted by an electronically controlled drive member, the limit mechanism 170 is not needed for positioning at this time, or the adjustment member 160 and the lamp housing 110 The narrow hole 113 of the reflector 130 is interference fit, and the reflector 130 can still be rotated under a large external force, and the reflector 130 is naturally positioned at a predetermined position after rotation.

The principle of the adjustable irradiation angle of the above-mentioned light source structure 100 is that the reflector 130 is installed between the two supporting bases 120 and can rotate around the two rotating shafts 135. Through the narrow hole 113 of the lamp housing 110, when the adjustment member 160 needs to be rotated, the adjustment member 160 can be moved to slide the adjustment member 160 in the narrow hole 113, and the reflector 130 also rotates accordingly to realize the adjustable function. In addition, if the limiting mechanism 170 is used, when the lighting fixture 10 needs to change the irradiation angle, it is only necessary to loosen the limiting nut 175 between the adjusting member 160 and the limiting plate 171, and then move the adjusting member 160 up and down. The position of the reflector 130 can be changed to realize multi-light distribution and multi-angle lighting.

Compared with the traditional light source structure, the above light source structure 100 has at least the following advantages:

(1) The reflector 130 of the above-mentioned light source structure 100 is rotatably connected to the support base 120, and the reflector 130 is rotated by the adjusting member 160, so that the rotation angle of the reflector 130 can be adjusted within a certain range, so that the light emitted by the light source 150 The light can be emitted from multiple angles, and the intensity of illumination can be adjusted. Therefore, the above-mentioned light source structure 100 has a multi-angle and multi-illuminance lighting effect.

(2) The lighting angle of the light source structure 100 is changed by adjusting the position of the reflector 130 , so that the installation position of the entire lighting fixture 10 is more flexible, the range of use of the lighting fixture is improved, and the workload of installation is reduced at the same time. For example, in some cases where the lighting fixture 10 is not conducive to the installation of the lighting fixture 10 due to a small space or a special shape of the space, the lighting fixture 10 can be installed at a convenient position for installation, and then the irradiation angle can be adjusted.

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 light source structure, characterized in that, comprising: The lamp housing has a light outlet, and the bottom of the lamp housing opposite to the light outlet is provided with a narrow hole; Two supporting bases are fixed in the lamp housing and arranged at intervals; The reflector is arranged between the two support bases, and the two ends of the reflector are respectively rotatably connected to the two support bases. The reflector has a storage cavity, and at the bottom of the storage cavity open with through holes; The light source fixing seat passes through the through hole and is fixed in the lamp housing; The light source is arranged on the light source fixing seat and accommodated in the receiving cavity of the reflector; and An adjustment piece is fixedly connected to the outside of the bottom of the reflector, the adjustment piece passes through the narrow hole, and the free end of the adjustment piece is exposed outside the lamp housing; Wherein, after being reflected by the reflector, part of the light emitted by the light source is emitted from the light outlet of the lamp housing; when the adjusting member is moved, the adjusting member can slide in the narrow hole to drive the The reflector rotates relative to the support seat. 2. The light source structure according to claim 1, wherein the lamp housing is a semi-cylindrical housing, the reflector is a semi-cylindrical cover, and the axial direction of the reflector is in line with the The axial direction of the lamp housing is arranged in parallel, and the two supporting bases are respectively rotatably connected to the two semicircular end surfaces of the reflector. 3. The light source structure according to claim 2, wherein the narrow hole is an arc-shaped hole extending along the circumference of the lamp housing. 4. The light source structure as claimed in claim 2, characterized in that, the two semicircular end faces of the reflector are respectively provided with a rotating shaft, one of the two supporting bases is provided with a shaft hole, and the other is provided with a shaft hole. A bayonet socket is provided, and the two rotating shafts respectively pass through the shaft hole and the bayonet socket, and are locked by threaded fasteners, so that the reflector is rotatably connected to the two supporting seats. 5. The light source structure according to claim 2, wherein the through hole is an arc-shaped hole extending along the circumference of the reflector, and the light source fixing seat is along the The edges of the vias slide relative to each other. 6. The light source structure according to claim 2, wherein there are two light source fixing seats, and the reflector is provided with two through holes correspondingly at the bottom of the storage cavity, and the light sources are parallel A linear light source is arranged in the axial direction of the reflector, and the two ends of the light source are respectively fixedly connected with the two light source fixing seats. 7. The light source structure according to any one of claims 1-6, further comprising a limit mechanism, the limit mechanism is connected to the free end of the adjustment member exposed on the lamp housing, so as to The adjuster is positioned within the aperture. 8. The light source structure according to claim 7, wherein the limiting mechanism comprises: The limiting plate is fixed on the outside of the bottom of the lamp housing, and a limiting hole is opened on the limiting plate; The limiting shaft is fixedly connected with the free end of the adjustment member exposed to the lamp housing, the limiting shaft passes through the limiting hole, and can slide along the limiting hole, the limiting shaft the free end is externally threaded; and The limit nut is screwed with the external thread of the free end of the limit shaft, so as to fix the limit shaft in the limit hole. 9. The light source structure according to claim 7, wherein the limiting mechanism comprises: The limiting plate is fixed on the outside of the bottom of the lamp housing. The limiting plate is provided with a limiting hole, and the edge of the limiting hole is provided with a plurality of locking positions arranged at intervals; The limiting shaft is fixedly connected with the free end of the adjustment member exposed on the lamp housing, the limiting shaft passes through the limiting hole, and can slide along the limiting hole, the limiting shaft The free end is provided with an engaging portion, and the engaging portion can selectively elastically engage with one of the plurality of locking positions. 10. A floodlight, characterized in that it comprises: The light source structure according to any one of claims 1-9; and The two ends of the U-shaped bracket are respectively rotatably connected to the two ends of the lamp housing, and the rotation axis of the U-shaped bracket is parallel to the axial direction of the lamp housing.