CN212456375U

CN212456375U - Lamp body and lamp

Info

Publication number: CN212456375U
Application number: CN202021679033.0U
Authority: CN
Inventors: 高美勤
Original assignee: Ruiang Optoelectronic Technology Guangdong Co ltd
Current assignee: Ruiang Optoelectronic Technology Guangdong Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-02
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a lamp body and a lamp, which comprises a lamp cylinder, a radiator, a heat conducting piece, a circuit board, a lamp bead and a light mixer; the heat radiator is arranged in the lamp tube, the heat conducting piece is arranged on the end part of the heat radiator, and the circuit board is arranged on the heat conducting piece; more than two lamp beads are arranged on the circuit board; the light mixer is arranged in the lamp barrel; the light mixer comprises a light guide body and a light guide cylinder connected with the light guide body; more than two light guide columns are arranged on one side of the light guide body facing the circuit board at intervals, and one end of the light guide body facing the light guide cylinder is provided with a light guide terminal; every the lamp pearl all with one the leaded light post corresponds, leaded light terminal embedding is in the leaded light section of thick bamboo. The utility model discloses a lamp body and lamps and lanterns can the mixed light, can use different scenes, can also realize the electrothermal separation, have improved the radiating effect.

Description

Lamp body and lamp

Technical Field

The utility model relates to a lighting apparatus technical field especially relates to a lamp body and lamps and lanterns.

Background

Projection lamps or decorative lamps are conventional devices, and generally include a lamp body having a heat sink, a circuit board, and a light source.

The circuit board is arranged at the front end of the radiator, and the light source is arranged on the circuit board.

In the prior art, a light source is generally arranged on a circuit board, the brightness and the color of the light source are fixed, if the light source needs to be adjusted, the light sources with different powers and different colors need to be replaced, and the light mixing effect cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lamp body and lamps and lanterns that can realize the mixed light effect.

The technical scheme of the utility model provides a lamp body, which comprises a lamp tube, a radiator, a heat conducting piece, a circuit board, a lamp bead and a light mixer;

the heat radiator is arranged in the lamp cylinder, the heat conducting piece is arranged on the heat radiator, and the circuit board is arranged on the heat conducting piece;

more than two lamp beads are arranged on the circuit board, and the lamp beads face the front end of the lamp tube;

the light mixer is arranged in the lamp tube and is positioned on the front side of the circuit board;

the light mixer comprises a light guide body and a light guide cylinder connected with the light guide body;

more than two light guide columns are arranged on one side of the light guide body facing the circuit board at intervals, and one end of the light guide body facing the light guide cylinder is provided with a light guide terminal;

every the lamp pearl all with one the leaded light post corresponds, leaded light terminal embedding is in the leaded light section of thick bamboo.

Further, a light guide clapboard is arranged in the light guide cylinder; the light guide terminal is in contact with the light guide spacer.

Further, one side of the circuit board facing the heat conducting piece is provided with a conductive part and a heat transfer part at intervals;

the heat conducting member includes a heat conducting member base portion and a heat conducting member projection provided on the heat conducting member base portion, the heat conducting member projection being in contact with the heat transfer portion;

an insulating and heat-insulating layer is arranged on one side, facing the circuit board, of the heat conducting piece base;

a conductive layer is arranged on the insulating and heat-insulating layer, and a protective coating is arranged on the conductive layer;

the conductive layer at least partially penetrates the protective coating and is in contact with the conductive portion.

Furthermore, one side of the heat conducting piece facing the radiator is provided with a heat conducting piece inserting end, and the front end of the radiator is provided with a radiator slot;

the heat conducting piece inserting end is embedded in the radiator slot.

The technical scheme of the utility model also provides a lamp, which comprises a lens and the lamp body;

the lens is detachably mounted on the front end of the lamp barrel.

Further, the lens includes a first lens;

the first lens comprises a first lens barrel, and a first lens capable of sliding back and forth along the first lens barrel is arranged in the first lens barrel;

a lamp barrel lens is arranged in the lamp barrel;

a film bracket ring is arranged at the front end of the lamp tube, and a film bracket capable of being plugged and pulled is arranged on the film bracket ring;

the front part of the film bracket ring is connected with a connecting ring, and the first lens barrel is detachably connected with the connecting ring;

the cartridge lens is located between the film carrier ring and the light mixer.

Furthermore, a first clamping ring is arranged in the connecting ring, a second clamping ring is arranged at the rear end of the first lens barrel, and the first clamping ring is clamped with the second clamping ring;

a first positioning hole is formed in the first clamping ring, and a second positioning hole is formed in the second clamping ring;

a positioning pin capable of moving back and forth is arranged in the connecting ring, and the positioning pin is slidably arranged in the first positioning hole;

a positioning pin driving spring for driving the positioning pin to move forwards and be inserted into the second positioning hole is connected to the positioning pin;

and the connecting ring is provided with a driving button for driving the positioning pin to move backwards and move out of the second positioning hole.

Furthermore, a baffle mounting ring is further mounted at the rear part of the connecting ring, and at least one shielding piece capable of shielding the central hole of the baffle mounting ring is movably arranged on the baffle mounting ring.

Further, the first lens barrel comprises a fixed barrel and a rotating ring, and the fixed barrel is detachably connected with the connecting ring;

the rotating ring is sleeved on the fixed cylinder and can rotate on the fixed cylinder;

a cylinder wall opening part extending along the axial direction is arranged on the cylinder wall of the fixed cylinder;

the first lens is arranged in the fixed cylinder through a first lens mounting ring;

the first lens mounting ring is provided with a boss which is in clearance fit with the opening part of the cylinder wall;

the inner surface of the rotating ring is provided with a spiral groove, and the boss is provided with a convex rib;

the convex ribs are in clearance fit in the spiral grooves.

Further, the lens includes a second lens;

the second lens comprises a second lens barrel, a second lens and a film mounting ring are fixedly mounted in the second lens barrel, and the film mounting ring is positioned on the front side of the second lens;

the front end of the second lens barrel is provided with a focusing lens;

the second lens cone is connected with the lamp barrel through a rotary connecting ring, the rotary connecting ring is rotatably connected with the lamp barrel, and the second lens cone is fixedly connected with the rotary connecting ring;

the light guide cylinder is positioned in the second lens barrel and faces the film mounting ring.

By adopting the technical scheme, the method has the following beneficial effects:

the utility model provides a lamp body is through installing the lamp pearl more than two on the circuit board to the configuration mixing optical device, can be in the same place the light that each lamp pearl sent, can improve illumination brightness on the one hand, on the other hand can mix the colour of light, in order to reach the mixed light effect, satisfies different illumination and projection demand.

The utility model provides a lamp body, the heat conduction path and the conductive path separation of its circuit board can realize better radiating effect.

The utility model provides a lamp installs the camera lens through the front end detachably at the lamp body, conveniently organizes, changes the camera lens to satisfy different use scenes.

Drawings

Fig. 1 is a cross-sectional view of a lamp body according to an embodiment of the present invention;

FIG. 2 is a schematic view of more than two lamp beads mounted on a circuit board;

FIG. 3 is a perspective view of the light mixer;

FIG. 4 is a cross-sectional view of a light mixer;

FIG. 5 is a cross-sectional view of a circuit board, a heat sink, an insulating layer, a conductive layer, and a protective layer;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a partially enlarged view of the circuit board, the heat sink, the insulating layer, the conductive layer, and the protective layer;

fig. 8 is a perspective view of a lamp having a first structure according to an embodiment of the present invention;

fig. 9 is a sectional view of the lamp body and the first barrel shown in fig. 8;

fig. 10 is an exploded view of the retainer ring, film carrier ring and film strip;

FIG. 11 is an exploded view of the film carrier ring, the baffle mounting ring, the blanking blades and the connecting ring;

FIG. 12 is an exploded view of the attachment ring, the first snap ring, the second snap ring, the alignment pin, and the actuator button;

FIG. 13 is a cross-sectional view of the attachment ring, the first snap ring, the second snap ring, the alignment pin, and the actuator button assembled together;

fig. 14 is an exploded view of the first barrel;

fig. 15 is a sectional view of the first barrel;

FIG. 16 is a perspective view of the rotating ring;

FIG. 17 is a perspective view of the first lens mounting ring;

fig. 18 is a perspective view of a lamp having a second structure according to an embodiment of the present invention;

fig. 19 is a sectional view of the lamp body and the second barrel shown in fig. 18;

fig. 20 is an exploded view of the second barrel.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1-4, an embodiment of the present invention provides a lamp body 1, which includes a lamp barrel 11, a heat sink 12, a heat conducting element 13, a circuit board 14, a lamp bead 15, and a light mixer 16.

A heat sink 12 is mounted in the lamp vessel 11, a heat conductive member 13 is mounted on the heat sink 12, and a circuit board 14 is mounted on the heat conductive member 13.

More than two lamp beads 15 are installed on the circuit board 14, and the lamp beads 15 face the front end of the lamp tube 11.

The light mixer 16 is installed in the lamp barrel 11, and the light mixer 16 is located on the front side of the circuit board 14.

The light mixer 16 includes a light guide 161 and a light guide cylinder 162 connected to the light guide 161.

Two or more light guide posts 1611 are provided at intervals on one side of the light guide body 161 facing the circuit board 14, and one light guide terminal 1612 is provided on one end of the light guide body 161 facing the light guide cylinder 162.

Each lamp bead 15 corresponds to one light guide column 1611, and the light guide terminal 1612 is embedded in the light guide cylinder 162.

The utility model provides a lamp body 1 can be used for on light and the projection lamp, and it is used for providing the light source for lamp holder, lens cone etc..

The utility model provides a lamp body 1 mainly includes a lamp section of thick bamboo 11, radiator 12, heat-conducting piece 13, circuit board 14, lamp pearl 15 and optical mixer 16.

The heat sink 12 is fixedly mounted in the lamp barrel 11 by screws or brackets, and generally the heat sink 12 is mounted at the rear end of the lamp barrel 11.

The heat conducting member 13 is mounted at the front end of the heat sink 12 through a mounting ring or a bracket or a screw, and is used for transferring heat generated by the lamp beads 15 to the heat sink 12 and dissipating the heat through the heat sink 12.

The heat-conducting member 13 may be a metal heat-conducting member, such as a metal heat-conducting ring, a metal heat-conducting strip, a copper insert, or the like. And a copper insert is preferably adopted, so that the heat conduction effect is good.

The circuit board 14 is a printed circuit board, which is mounted on the heat conductive member 13 by being pressed. The circuit board 14 can be connected with an external circuit or a battery through a lead to supply power for the lamp beads 15.

The lamp beads 15 can be LED lamp beads, white light lamp beads and colored light lamp beads.

At least two lamp beads 15 are installed on the circuit board 14. The lamp beads 15 above two can all adopt white light lamp beads, and also can adopt lamp beads with different colors. For example, each bead 15 can emit light of one color, and adjacent beads 15 emit light of a different color.

The light mixer 16 is fixedly mounted in the lamp tube 11 by a bracket or a mounting ring, and the light mixer 16 is positioned in front of the circuit board 14.

The light mixer 16 is made of a light guide material, and can guide light, for example, an optical grade acrylic/PC plate can be used.

The light mixer 16 is configured to mix light emitted by two or more of the lamp beads 15, and then to transmit the mixed light out.

The lamp beads 15 with more than two colors can be selected to emit light with the same color, and can also be selected to emit light with different colors.

The light mixer 16 can mix the light with different colors to output pure white light or colored light, so as to meet the requirement of projection color. The light mixer 16 may mix the brightness of different lights to increase the illumination intensity.

The mixed light is also called as mixed light, and means that two or more visible lights with different frequencies are mixed together under certain visible conditions.

The light mixer 16 includes a light guide body 161 and a light guide cylinder 162, and the light guide cylinder 162 is connected to the front side of the light guide body 161.

The light guide body 161 has two or more light guide columns 1611 at one side thereof, and the light guide columns 1611 extend toward the lamp beads 15. The quantity of leaded light post 1611 is unanimous with the quantity of lamp pearl 15, and the arrangement mode is unanimous to make the front side of each lamp pearl 15 all correspond one leaded light post 1611, every leaded light post 1611 is used for exporting the light of corresponding lamp pearl 15. Each light guide column 1611 is arranged right in front of one corresponding lamp bead 15. The light guide column 1611 can be in contact with the lamp bead 15, and can also be spaced from the lamp bead 15 by a certain distance.

The other end of the light guide body 161 has a light guide terminal 1612 that extends toward the light guide cylinder 162 and is embedded in the rear end of the light guide cylinder 162. The light guide terminal 412 is used to mix the light from the light guide posts 1611, transmit the mixed light to the light guide barrel 162, and finally transmit the mixed light out from the light guide barrel 162.

A part of the light is directly transmitted out through the through hole of the light guide tube 162, and a part of the light is transmitted out through the wall of the light guide tube 162. The light guided out from the light guide tube 162 is mixed light of two or more lamp beads 15, and may be light obtained by mixing colors or light obtained by mixing brightness.

Therefore, the utility model provides a lamp body is through installing the lamp pearl more than two on the circuit board to the configuration mixing optical device, can be in the same place the light that each lamp pearl sent, can improve illumination brightness on the one hand, on the other hand can mix the colour of light, in order to reach the mixed light effect, satisfies different illumination and projection demand.

In one embodiment, as shown in fig. 4, the light guide cylinder 162 has a light guide partition 1621 therein, and the light guide terminal 1612 is in contact with the light guide partition 1621, so that a part of light transmitted from the light guide terminal 1612 is transmitted to the wall of the light guide cylinder 162 through the light guide partition 1621 and then transmitted out from the wall of the light guide cylinder 162, or a part of light is directly transmitted out from the through hole of the light guide cylinder 162 through the light guide partition 1621.

In one embodiment, as shown in fig. 5 to 7, the circuit board 14 is provided with a conductive portion 141 and a heat transfer portion 142 at intervals on a side facing the heat conductive member 13.

The heat conductive member 13 includes a heat conductive member base 131 and heat conductive member protrusions 132 provided on the heat conductive member base 131, the heat conductive member protrusions 132 being in contact with the heat transfer portion 142.

An insulating thermal insulating layer 133 is provided on the side of the heat-conducting member base 131 facing the circuit board 14.

A conductive layer 134 is provided on the insulating layer 133, and a protective coating 135 is provided on the conductive layer 134.

Conductive layer 134 passes at least partially through protective coating 135 and contacts conductive portion 141.

The conductive portion 141 may be a conductive mounting plate, the heat transfer portion 142 may be a heat transfer mounting plate, the heat transfer portion 142 is located in the middle of the conductive portion 141, and the heat transfer portion 142 is spaced apart from the conductive portion 141.

The conductive portion 141 is used to conduct the circuit of the circuit board 14, and the heat transfer portion 142 is used to transfer heat from the circuit board 14.

In order to achieve separation of the conductive path and the heat dissipation path of the circuit board 14, the following arrangement is adopted:

the heat conductive member 13 includes a heat conductive member base 131 and a heat conductive member protrusion 132, and the heat conductive member protrusion 132 is integrally provided in the middle of the heat conductive member base 131. During assembly, the heat conducting member protrusion 132 contacts the heat conducting portion 142, so that heat emitted from the lamp bead 15 can be conducted to the heat sink 12 for heat dissipation through the circuit board 14, the heat conducting portion 142, the heat conducting member protrusion 132, and the heat conducting member base 131.

At least one insulating layer 133 is provided on the surface of the heat-conducting base 131. The insulating layer 133 has both an insulating function and a heat insulating function.

A conductive layer 134 is disposed on the insulating layer 133, and the conductive layer 134 may be a printed circuit layer or a conductive layer. Conductive layer 134 is connected to an external circuit or battery.

A protective coating 135 is applied over conductive layer 134. The protective coating 135 may be a white oil layer.

The conductive layer 134 has a convex portion, and when the conductive layer 134 is assembled, the convex portion of the conductive layer 134 passes through the protective coating 135 and contacts the conductive portion 141, and the current in the conductive layer 134 can be transmitted to the circuit board 14 through the convex portion and the conductive portion 141, so that the conductive function is realized.

The insulating layer 133 can perform an insulating function on one hand, so that the conducting layer 134 is prevented from electric leakage; the insulating layer 133 also serves as a heat insulator to prevent heat in the heat conductor base 131 from being conducted to the conductive layer 134 to affect the electrical conductivity. By providing the insulating layer 133 between the conductive layer 134 and the heat conductive member base 131, the heat dissipation path and the conductive path of the circuit board 14 are separated from each other without affecting each other, and the heat dissipation and conductive performance is improved.

The insulating and heat insulating layer 133 may be a rubber layer, which has not only an insulating effect but also a heat insulating effect.

In one embodiment, as shown in fig. 1, a side of the heat conducting member 13 facing the heat sink 12 has a heat conducting member insertion end 130, and a front end of the heat sink 12 has a heat sink insertion slot. The heat-conducting member insertion end 130 is embedded in the heat sink insertion groove.

The heat sink insertion end 130 is integrally formed at the rear end of the heat conductive member 14, and the heat sink insertion slot is disposed at the front end of the heat sink 12. The heat conducting piece inserting end 130 is embedded into the slot of the radiator from front to back, so that the connection stability of the heat conducting piece 13 and the radiator 12 is improved on one hand, and the heat on the heat conducting piece 13 is further favorably transferred to the radiator 12 quickly on the other hand, so that a better radiating effect is realized.

As shown in fig. 8 and 18, an embodiment of the present invention provides a lamp, which includes a lens 2 and the lamp body 1 described in any of the foregoing embodiments. The lens 2 is detachably mounted on the front end of the lamp barrel 11.

The lens 2 can be connected with the lamp tube 11 by screw thread or by a buckle.

The lens 2 may be a focusing lens or a projection lens. The lens 2 projects the mixed light guided by the light mixer 16 to a specified area.

In one of the embodiments, as shown in fig. 9-10 and 14-15, the lens 2 includes a first lens 21.

The first lens 21 includes a first barrel 211, and a first lens 210 that can slide back and forth along the first barrel 211 is provided in the first barrel 211.

A lamp barrel lens 17 is provided in the lamp barrel 11, and the lamp barrel lens 17 is located on the front side of the light mixer 16.

The film holder ring 4 is attached to the front end of the lamp tube 11, and a film holder 41 that can be inserted and removed is disposed on the film holder ring 4.

The film holder ring 4 has a coupling ring 5 coupled to the front thereof, and the first barrel 211 is detachably coupled to the coupling ring 5.

The cartridge lens 17 is located between the film carrier ring 4 and the light mixer 16.

In this embodiment, the lens 2 is a first lens 21, and the first lens 21 is a focus adjusting lens. At least one first lens 210 is provided in the first barrel 211 of the first lens 21, and the first lens 210 can slide back and forth along the first barrel 211 to perform focusing. The first lens 210 may be a convex lens.

A lamp barrel lens 17 is arranged in the lamp barrel 11, and the lamp barrel lens 17 may be a convex lens. The barrel lens 17 is used for imaging. The barrel lens 17 is located in front of the light mixer 16.

The film holder ring 4 is attached to the front end of the lamp tube 11, and a film holder 41 that can be inserted and removed is disposed on the film holder ring 4. The rear side of the film holder ring 4 is provided with an open groove 40, and a film holder 41 can be inserted into the open groove 40 or pulled out from the open groove 40. The film holder 41 is used for mounting a film.

A lens fixing ring 18 is attached to the front end of the lamp barrel 11, and the barrel lens 17 is attached to the lens fixing ring 18. The lens fixing ring 18 is attached to the front end of the lamp barrel 11 by screws 181. The film carrier ring 4 is attached to the front side of the lens holding ring 18 by screws.

The connection ring 5 is connected to the front of the film carrier ring 4 by screws, and the first lens barrel 211 is connected to the connection ring 5 by screw threads or snap fasteners, so that the first lens barrel 211 is detachably connected to the connection ring 5, thereby facilitating the replacement of the first lens 21.

Preferably, two lamp barrel lenses 17 are provided at an interval in the lamp barrel 11, and two first lenses 210 are provided at an interval in the first barrel 211.

In use, film is mounted on the film holder 41, and the film holder 41 is inserted into the open slot 40. The light emitted by the lamp beads 15 is mixed by the light mixer 16, then irradiates the film through the lamp tube lens 17, and then is projected through the first lens 210, so that the pattern information on the film is projected. In this process, the first lens 210 may be slid to adjust the distance from the film, and focusing may be performed, so that pattern information may be clearly projected.

According to the lamp provided by the invention, the first lens is arranged at the front end of the lamp body, so that accurate focusing can be realized, and the projection definition is improved.

In one embodiment, as shown in fig. 12-13, the connection ring 5 has a first snap ring 7 therein, the rear end of the first barrel 211 has a second snap ring 8 therein, and the first snap ring 7 is snapped with the second snap ring 8.

The first snap ring 7 is provided with a first positioning hole 71, and the second snap ring 8 is provided with a second positioning hole 81.

A positioning pin 51 that can move forward and backward is provided in the connection ring 5, and the positioning pin 51 is slidably disposed in the first positioning hole 71.

A positioning pin drive spring 54 for driving the positioning pin 51 to move forward and be inserted into the second positioning hole 81 is connected to the positioning pin 51, and a drive button 52 for driving the positioning pin 51 to move backward and be removed from the second positioning hole 81 is arranged on the connection ring 5.

More than two clamping claws 72 are arranged on the first clamping ring 7 at intervals, and clamping grooves are correspondingly arranged on the second clamping ring 8. When the first lens 21 is rotated towards the first direction and the second snap ring 8 is driven to rotate, the clamping groove of the second snap ring 8 can be clamped with the clamping jaw 72 of the first snap ring 7, and the first lens 21 is mounted on the connecting ring 5; when the first lens 21 is rotated in a second direction opposite to the first direction and the second snap ring 8 is driven to rotate, the snap groove is disengaged from the claw 72, and the first lens 21 is detached from the connection ring 5.

The first snap ring 7 is provided with a first positioning hole 71, the second snap ring 8 is provided with a second positioning hole 81, and the second positioning hole 81 may be aligned with or offset from the first positioning hole 71 as the first lens 21 rotates.

The positioning pin 51 is disposed in the connection ring 5, the connection ring 5 is provided with a positioning post 53 extending toward the second snap ring 8, the rear side of the positioning pin 51 is provided with a sliding groove 512, the positioning post 53 is inserted into the sliding groove 512, and the positioning pin 51 and the sliding groove 512 are in clearance fit, so that the positioning pin 51 can slide back and forth on the positioning post 53. The front end of the positioning pin 51 is slidably disposed in the first positioning hole 71. The diameter of the positioning pin 51 is smaller than the diameter of the first positioning hole 71 and smaller than the diameter of the second positioning hole 81.

A positioning pin drive spring 54 is fitted over the positioning post 53 and is preloaded between the positioning pin 51 and the rear end of the positioning post 53. The positioning pin driving spring 54 is used to drive the positioning pin 51 to move toward the second snap ring 8 side so that the leading end of the positioning pin 51 is inserted into the second positioning hole 81, thereby locking the first snap ring 7 and the second snap ring 8 together, and the second snap ring 8 cannot rotate relative to the first snap ring 7 and cannot be detached.

The driving button 52 is disposed on the connecting ring 5 and is used for driving the positioning pin 51 to move backward and move out of the second positioning hole 81, at this time, the second snap ring 8 can rotate relative to the first snap ring 7, and the first lens 21 can be detached from the connecting ring 5.

Specifically, the actuation button 52 includes a button portion 520 and a contact 521 connected to the button portion 520. The button 520 includes a button head 5201 and a button stem 5202, the button stem 5202 is connected to the button head 5201, and the contact 521 is connected to the button stem 5202.

A radial through hole 50 is provided on the connection ring 5, and the button portion cylinder 5202 is clearance fitted in the radial through hole 50. The button head 5201 is located outside the connection ring 5.

The positioning pin 51 has a projection 511 extending obliquely on the side facing the contact 521. The surface of the protrusion 511 facing the contact 521 is a protrusion inclined surface 5111. The projection inclined surface 5111 is inclined gradually toward the contact 521 in the front-to-rear direction.

The button portion 520 may bring the contact 521 to slide back and forth along the radial direction of the connection ring 5. A cylinder drive spring 55 for driving the push button cylinder 5202 to move radially outward of the connection ring 5 is provided in the radial through hole 50. A cylindrical drive spring 55 is mounted in the radial through hole 50 and fits over the button portion cylindrical portion 5202. The column driving spring 55 is an expansion spring.

When the button head 5201 is pressed, the contact 521 moves toward the projection inclined surface 5111 and comes into contact with the projection inclined surface 5111, thereby pushing the positioning pin 51 to move rearward so that the leading end of the positioning pin 51 is disengaged from the second positioning hole 81. At this time, the second snap ring 8 can rotate relative to the first snap ring 7, and the first lens 21 can be detached from the connection ring 5.

When the force acting on the button portion head 5201 is released, the contact 521 leaves the boss inclined face 5111 by the cylinder portion drive spring 55, and the positioning pin 51 advances and is inserted into the second positioning hole 81 by the positioning pin drive spring 54. At this time, the second snap ring 8 cannot rotate relative to the first snap ring 7, and the first lens 21 cannot be detached from the attachment ring 5.

In one embodiment, as shown in fig. 11, a flap mounting ring 6 is further mounted at the rear portion of the connecting ring 5, and at least one shielding piece 61 capable of shielding the central hole 60 of the flap mounting ring 6 is movably disposed on the flap mounting ring 6.

The separation blade collar 6 can be installed in the rear end opening of go-between 5, shelters from piece 61 and installs on separation blade collar 6, can shelter from the position of piece 61 on separation blade collar 6 through removing to shelter from this separation blade collar 6's centre bore 60, thereby change the area that can the light-emitting, change the light type.

The separation blade installing ring 6 can be a magnetic ring, and the shielding piece 61 can be a metal separation blade capable of being adsorbed by a magnet, so that the shielding piece 61 can be moved and adsorbed and fixed on the separation blade installing ring 6 at will.

In one embodiment, as shown in fig. 9, 14-17, the first barrel 211 includes a fixed barrel 2111 and a rotating ring 2112, the fixed barrel 2111 being detachably connected to the connection ring 5.

The rotating ring 2112 is fitted over the fixed barrel 2111 and can rotate on the fixed barrel 2111.

The fixed cylinder 2111 has a cylinder wall opening 21133 extending in the axial direction.

The first lens 210 is mounted in the fixed barrel 2111 by a first lens mounting ring 212.

The first lens mount ring 212 is provided with a boss 2121, and the boss 2121 is clearance-fitted in the cylindrical wall opening 21133.

The inner surface of the rotating ring 2112 is provided with a helical groove 2114, and the boss 2121 is provided with a rib 2122.

The ribs 2122 are clearance fit within the helical grooves 2114.

The first barrel 21 includes a fixed barrel 2111, a rotating ring 2212, a first lens mounting ring 212, and an end cap 213.

The fixed barrel 2111 is detachably connected to the attachment ring 5. A cylindrical wall opening 21133 is provided in the cylindrical wall of the fixed cylinder 2111, and the cylindrical wall opening 21133 extends in the axial direction. The cylindrical wall opening 21133 is a long-sized opening.

The rotating ring 2112 is fitted over the fixed barrel 2111, and is rotatable on the fixed barrel 2111. The outer surface of the rotating ring 2112 is provided with an anti-slip portion, which is beneficial for a user to hold the rotating ring 2112 to rotate. The rotation ring 2112 is provided with a spiral groove 2114 on the inner surface thereof, and the spiral groove 2114 is spirally arranged on the inner surface of the rotation ring 2112, extending in the axial direction of the rotation ring 2112.

Boss 2121 is integrally formed on the outer surface of first lens mount ring 212, and projects radially outward of first lens mount ring 212. A rib 2122 is integrally formed on the surface of the boss 2121 and is capable of mating with the helical groove 2114.

During assembly, the boss 2121 is inserted into the cylindrical wall opening 2113, and is in clearance fit with the cylindrical wall opening 2113, so that the boss 2121 can slide back and forth along the cylindrical wall opening 2113. The rib 2122 fits within the helical groove 2114 with a clearance fit with the helical groove 2114 so that the rib 2122 can slide relative to the helical groove 2114.

The first lens 210 is fitted in the first lens mounting ring 212. When not in use, the end cap 213 can be buckled at the front end of the fixed barrel 2111 to play a role of dust prevention.

When focusing is needed, the rotating ring 2112 can be rotated on the fixed cylinder 2111, the convex rib 2122 can move back and forth under the action of the spiral groove 2114, the boss 2121 is driven to slide back and forth in the opening portion 2113 of the cylinder wall, finally the first lens mounting ring 212 and the first lens 210 can be driven to slide back and forth in the fixed cylinder 2111, the distance between the first lens 210 and the film bracket ring 4 is adjusted, and the projection focusing function is realized.

In one embodiment, as shown in fig. 15 and 17, guide tracks 2115 are provided on the inner surface of the stationary barrel 2111, extending in the axial direction. A guide groove 2123 is provided on an outer surface of the first lens mount ring 212. The guide rail 2115 is clearance-fitted to the guide groove 2123.

The guide rail 2115 may be a guide rib provided on the inner surface of the fixed barrel 2111, which extends in the axial direction of the fixed barrel 2111. The guide rails 2115 are loosely fitted into the guide grooves 2123 and can slide relative to each other to provide a guide function for the forward and backward movement of the first lens mount 212.

In one embodiment, as shown in fig. 8-9 and 14-15, two rotating rings 2112 arranged one behind the other are mounted on a fixed barrel 2111, and two first lens mounting rings 212 are arranged one behind the other in the fixed barrel 2111, and a first lens 210 is arranged in each first lens mounting ring 212.

Accordingly, the fixed cylinder 2111 is provided with two cylinder wall opening portions 2113, and the two cylinder wall opening portions 2113 are arranged in the fixed cylinder 2111 in the front-rear direction.

The bosses 2121 of the two first lens mount rings 212 respectively penetrate the two cylindrical wall openings 2113.

The ribs 2212 on the two bosses 2121 are respectively matched with the spiral grooves 2114 in the two rotating rings 2112 correspondingly.

That is, two rotating rings 2112 are disposed in the fixed cylinder 2111, two first lens mount rings 212 to which the first lenses 210 are respectively mounted are disposed in the fixed cylinder 2111, and two cylinder wall openings 2113 are disposed in the fixed cylinder 2111.

The two rotating rings 2112 are arranged in the fixed cylinder 2111 at intervals in the front-rear direction, the two first lens mount rings 212 are arranged in the fixed cylinder 2111 at intervals in the front-rear direction, and the two cylinder wall opening portions 2113 are arranged in the fixed cylinder 2111 at intervals in the front-rear direction.

When assembling, the boss 2121 of the front first lens mounting ring 212 passes through the front cylinder wall opening 2113, and the rib 2122 of the boss 2121 is engaged with the spiral groove 2114 of the front rotating ring 2112; a boss 2121 on the rear first lens mounting ring 212 passes through the rear cylindrical wall opening 2113, and a rib 2122 on the boss 2121 engages with a spiral groove 2114 in the rear rotating ring 2112.

By adjusting the distance between the two first lenses 210, the focusing capability is improved, and the projection definition and the projection area are improved.

In one of the embodiments, as shown in fig. 18-20, the lens 2 includes a second lens 22.

The second lens 22 includes a second barrel 221, the second barrel 221 is fixedly mounted with a second lens 220 and a film mounting ring 223, and the film mounting ring 223 is located at the front side of the second lens 220.

A focus lens 225 is mounted on the front end of the second barrel 221.

The second barrel 221 is connected with the lamp barrel 11 through a rotary connecting ring 9, the rotary connecting ring 9 is rotatably connected with the lamp barrel 11, and the second barrel 221 is fixedly connected with the rotary connecting ring 9.

The light pipe 162 is located inside the second barrel 221 and faces the film mounting ring 223.

In this embodiment, the lens 2 is a second lens 22, and the second lens 22 is a rotary lens. The second lens 22 includes a second barrel 221, a second lens 220, a film mount ring 223, and a focus lens 225. The second lens 220 and the film mount ring 223 are fixedly mounted in the second barrel 221, respectively, with the film mount ring 223 being located at the front side of the second lens 220.

The second lens 220 is mounted on the lens fixing cylinder 222, and two or more second lenses 220 may be mounted on the lens fixing cylinder 222 at intervals. The lens fixing barrel 222 is fixedly installed in the second barrel 221.

In use, the film 224 is mounted in the film mounting ring 223. The film 224 may have graphic information such as LOGO, text, graphics, etc. printed thereon.

The rear end of the rotary connection ring 9 is rotatably connected to the lamp barrel 11, for example, the rotary connection ring 9 is connected to the lamp barrel 11 by a screw connection or a bearing, so that the rotary connection ring 9 can rotate relative to the lamp barrel 11.

The second barrel 221 is fixedly connected to the front end of the rotation connection ring 9 so that the second barrel 221 can be rotated integrally with the rotation connection ring 9.

A focus lens 225 is installed at the front end of the second barrel 221 for focusing so that pattern information on the film 224 can be clearly projected. The focus lens 225 has a focus lens therein.

The focus lens 225 may be screw-coupled with the second barrel 221 to be movable forward and backward with respect to the second barrel 221, and a distance between the focus lens 225 and the film 224 is adjusted to perform a focal length adjustment. Of course, the focusing lens 225 can also be telescopic, for example, two threaded sleeves are adopted, the focusing lens is installed in the sleeves, and the two sleeves rotate relatively, so that the distance between the focusing lens and the film 24 can be adjusted, and the focal length can be adjusted.

The light emitted by the lamp bead 15 is mixed by the light mixer 16, projected onto the second lens 220, focused by the second lens 220, projected onto the film 224, and projected by the focusing lens 225, so that the pattern information on the film 224 can be projected.

When the angle of the pattern information projected by the film 224 does not meet the requirement, the second barrel 221 can be rotated to adjust the angle of the film 224, so that the projected pattern information is aligned, and the operation is convenient.

According to the lamp provided by the invention, the second lens is arranged at the front end of the lamp body, so that the rotation can be realized, and the position of the film can be adjusted to be aligned.

In one embodiment, as shown in fig. 19-20, the second barrel 221 includes an outer sleeve 2211 and an inner sleeve 2212 positioned within the outer sleeve 2211.

The rear ends of the outer sleeve 2211 and the inner sleeve 2212 are respectively connected with a rotation connecting ring 9.

The second lens 220 and the film mounting ring 223 are fixedly mounted within the inner sleeve 2212, respectively.

The focus lens 225 is mounted on the front end of the inner sleeve 2212.

The radius of the outer sleeve 2211 is larger than the radius of the inner sleeve 2212, with the inner sleeve 2212 being located within the outer sleeve 2211. The rotary joint ring 9 has an outer ring 91 extending forward and a central ring 92. The rear end of the outer sleeve 2211 is screwed or snapped to the outer ring 91, and the rear end of the inner sleeve 2212 is screwed or snapped to the center ring 92.

The lens holder 222 is fixedly mounted in the inner sleeve 2212 by the lens holder ring 228, and the film mount ring 223 is fixedly mounted in the inner sleeve 2212. The focus lens 225 is mounted to the front end of the inner sleeve 2212 by a lens mounting ring 227. The focus lens 225 may be screw-coupled with the lens mount ring 227 to achieve telescopic movement. A decorative cover 226 is attached to the front ends of the outer sleeve 2211 and the inner sleeve 2212.

When the outer sleeve 2211 is rotated, the inner sleeve 2212 is also rotated integrally, so as to drive the lens fixing ring 222, the second lens 220, the film mounting ring 223, the film 224 and the focusing lens 225 to rotate integrally.

In one embodiment, a suspension member 3 is further connected to the lamp vessel 11. The suspension member 3 includes a ceiling plate 31, a suspension arm 32, a spring clip fixing ring 33, and a spring clip 34.

The lower end of the boom 32 is pivotally connected to the lamp vessel 11, and the upper end of the boom 32 is pivotally connected to the ceiling tray 31.

The spring clip fixing ring 33 is fixedly installed on the ceiling tray 31, and the spring clip 34 is installed on the spring clip fixing ring 33.

The lower end of the boom 32 is pivotally connected to the lamp barrel 11, so that the pitch angle of the lamp barrel 11 can be adjusted. Specifically, the lower ends of the boom arms 32 are connected by a pin or pin light tube 11.

The upper end of the suspension arm 32 is pivotally connected with the ceiling disc 31, so that the rotation angle of the suspension arm 32 in the horizontal plane can be adjusted, and the left-right swing angle of the lamp tube 11 can be adjusted. Specifically, the upper end of the boom 32 is connected to the ceiling tray 31 by a pivot pin.

A spring clip fixing ring 33 is fixedly installed on the top of the ceiling tray 31, and a spring clip 34 is installed on the spring clip fixing ring 33. The spring clip 34 is adapted to be placed on a ceiling to suspend the projector lamp. When the projection lamp is installed, the spring clamp fixing ring 33 penetrates through the installation hole of the suspended ceiling, the spring clamp 34 is lapped on the suspended ceiling, and the ceiling suction disc 31 basically abuts against the installation hole of the suspended ceiling to play a role in covering.

The spring clip 34 is a bracket with a torsion spring that is sleeved on the bracket and is also connected to the spring clip fixing ring 33. The torsion spring is used to drive the bracket to contract towards the spring clip retaining ring 33. When the spring clip 34 is put on the ceiling, the end of the bracket is firmly abutted against the ceiling under the action of the torsion spring, so that the stability of hanging the projection lamp is improved.

According to the needs, the above technical schemes can be combined to achieve the best technical effect.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims

1. A lamp body (1) is characterized by comprising a lamp barrel (11), a radiator (12), a heat conducting piece (13), a circuit board (14), a lamp bead (15) and a light mixer (16);

the heat sink (12) is mounted in the lamp barrel (11), the heat-conducting member (13) is mounted on the heat sink (12), and the circuit board (14) is mounted on the heat-conducting member (13);

more than two lamp beads (15) are mounted on the circuit board (14), and the lamp beads (15) face the front end of the lamp barrel (11);

the light mixer (16) is arranged in the lamp tube (11), and the light mixer (16) is positioned on the front side of the circuit board (14);

the light mixer (16) comprises a light guide body (161) and a light guide cylinder (162) connected with the light guide body (161);

more than two light guide columns (1611) are arranged at intervals on one side of the light guide body (161) facing the circuit board (14), and one end, facing the light guide cylinder (162), of the light guide body (161) is provided with one light guide terminal (1612);

each lamp bead (15) corresponds to one light guide column (1611), and the light guide terminal (1612) is embedded in the light guide cylinder (162).

2. The lamp body (1) according to claim 1, wherein the light guide cylinder (162) has a light guide spacer (1621) therein, and the light guide terminal (1612) is in contact with the light guide spacer (1621).

3. A lamp body (1) according to claim 1, wherein a side of the circuit board (14) facing the heat conductive member (13) is provided with a conductive portion (141) and a heat transfer portion (142) at an interval;

the heat conductive member (13) includes a heat conductive member base (131) and a heat conductive member protrusion (132) provided on the heat conductive member base (131), the heat conductive member protrusion (132) being in contact with the heat transfer portion (142);

an insulating and heat-insulating layer (133) is arranged on one side of the heat-conducting member base (131) facing the circuit board (14);

a conductive layer (134) is arranged on the insulating and heat-insulating layer (133), and a protective coating (135) is arranged on the conductive layer (134);

the conductive layer (134) at least partially penetrates the protective coating (135) and is in contact with the conductive portion (141).

4. A lamp body (1) according to any one of claims 1-3, wherein a side of the heat-conducting member (13) facing the heat sink (12) has a heat-conducting member insertion end (130), and a front end of the heat sink (12) has a heat sink insertion groove;

the heat-conducting piece inserting end (130) is embedded in the heat sink inserting groove.

5. A luminaire, characterized by comprising a lens (2) and a lamp body (1) according to any one of claims 1-4;

the lens (2) is detachably mounted on the front end of the lamp barrel (11).

6. A luminaire as claimed in claim 5, characterized in that the lens (2) comprises a first lens (21);

the first lens (21) comprises a first lens barrel (211), and a first lens (210) capable of sliding back and forth along the first lens barrel (211) is arranged in the first lens barrel (211);

a lamp barrel lens (17) is arranged in the lamp barrel (11);

a film bracket ring (4) is installed at the front end of the lamp tube (11), and a film bracket (41) which can be inserted and pulled is arranged on the film bracket ring (4);

the front part of the film bracket ring (4) is connected with a connecting ring (5), and the first lens barrel (211) is detachably connected with the connecting ring (5);

the cartridge lens (17) is located between the film carrier ring (4) and the light mixer (16).

7. A lamp as claimed in claim 6, characterized in that the connection ring (5) has a first snap ring (7) therein, the rear end of the first barrel (211) has a second snap ring (8), and the first snap ring (7) is clamped with the second snap ring (8);

a first positioning hole (71) is formed in the first clamping ring (7), and a second positioning hole (81) is formed in the second clamping ring (8);

a positioning pin (51) capable of moving back and forth is arranged in the connecting ring (5), and the positioning pin (51) is slidably arranged in the first positioning hole (71);

a positioning pin driving spring (54) for driving the positioning pin (51) to move forwards and be inserted into the second positioning hole (81) is connected to the positioning pin (51);

and a driving button (52) for driving the positioning pin (51) to move backwards and move out of the second positioning hole (81) is arranged on the connecting ring (5).

8. A lamp as claimed in claim 6, characterized in that a baffle mounting ring (6) is further mounted at the rear part of the connecting ring (5), and at least one shielding plate (61) capable of shielding the central hole (60) of the baffle mounting ring (6) is movably arranged on the baffle mounting ring (6).

9. The lamp according to claim 6, wherein the first barrel (211) comprises a fixed cylinder (2111) and a rotating ring (2112), the fixed cylinder (2111) being detachably connected with the connection ring (5);

the rotating ring (2112) is sleeved on the fixed barrel (2111) and can rotate on the fixed barrel (2111);

a cylinder wall opening part (2113) extending along the axial direction is arranged on the cylinder wall of the fixed cylinder (2111);

the first lens (210) is mounted in a fixed barrel (2111) through a first lens mounting ring (212);

the first lens mounting ring (212) is provided with a boss (2121), and the boss (2121) is in clearance fit with the cylinder wall opening part (2113);

a spiral groove (2114) is formed in the inner surface of the rotating ring (2112), and a convex rib (2122) is arranged on the boss (2121);

the rib (2122) is clearance fit within the helical groove (2114).

10. A luminaire as claimed in claim 5, characterized in that the lens (2) comprises a second lens (22);

the second lens (22) comprises a second lens barrel (221), a second lens (220) and a film mounting ring (223) are fixedly mounted in the second lens barrel (221), and the film mounting ring (223) is positioned on the front side of the second lens (220);

a focusing lens (225) is mounted at the front end of the second lens barrel (221);

the second lens barrel (221) is connected with the lamp barrel (11) through a rotary connecting ring (9), the rotary connecting ring (9) is rotatably connected with the lamp barrel (11), and the second lens barrel (221) is fixedly connected with the rotary connecting ring (9);

the light guide cylinder (162) is located within the second barrel (221) and faces the film mounting ring (223).