Lamp body and lamp

Abstract

The present invention discloses a lamp body and a lamp, including a lamp tube, a heat sink, a heat conductor, a circuit board, lamp beads and a light mixer; the heat sink is installed in the lamp tube, the heat conductor is installed on the end of the heat sink, and the circuit board is installed on the heat conductor; more than two lamp beads are installed on the circuit board; the light mixer is installed in the lamp tube; the light mixer includes a light guide body and a light guide tube connected to the light guide body; the light guide body is provided with more than two light guide columns at intervals on one side facing the circuit board, and the light guide body has a light guide terminal at one end facing the light guide tube; each of the lamp beads corresponds to a light guide column, and the light guide terminal is embedded in the light guide tube. The lamp body and the lamp disclosed by the present invention can mix light, can be used in different scenes, and can also achieve electrical and thermal separation, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting equipment, and in particular to a lamp body and a lamp. Background Art

[0002] Projection lamps or decorative lamps are commonly used devices, which generally include a lamp body, wherein the lamp body has a heat sink, a circuit board and a light source.

[0003] The circuit board is mounted on the front end of the radiator, and the light source is mounted on the circuit board.

[0004] In the prior art, generally a light source is installed on a circuit board, and the brightness and color of the light source are fixed. If adjustment is required, light sources of different power and different colors need to be replaced, and a mixed light effect cannot be achieved. Summary of the invention

[0005] The object of the present invention is to provide a lamp body and a lamp that can achieve a mixed light effect.

[0006] The technical solution of the present invention provides a lamp body, including a lamp tube, a heat sink, a heat conductor, a circuit board, a lamp bead and a light mixer;

[0007] The radiator is installed in the lamp tube, the heat conducting member is installed on the radiator, and the circuit board is installed on the heat conducting member;

[0008] More than two lamp beads are installed on the circuit board, and the lamp beads face the front end of the lamp tube;

[0009] The light mixer is installed in the lamp tube, and the light mixer is located on the front side of the circuit board;

[0010] The light mixer comprises a light guide body and a light guide cylinder connected to the light guide body;

[0011] The light guide body is provided with two or more light guide columns at intervals on one side facing the circuit board, and the light guide body has a light guide terminal at one end facing the light guide cylinder;

[0012] Each of the lamp beads corresponds to one of the light guide columns, and the light guide terminals are embedded in the light guide cylinders.

[0013] Furthermore, the light guide tube has a light guide partition; the light guide terminal is in contact with the light guide partition.

[0014] Furthermore, a conductive portion and a heat transfer portion are provided at intervals on a side of the circuit board facing the heat conducting member;

[0015] The heat-conducting member comprises a heat-conducting member base and a heat-conducting member protrusion arranged on the heat-conducting member base, and the heat-conducting member protrusion contacts the heat transfer part;

[0016] An insulating heat-insulating layer is provided on the side of the heat-conducting member base facing the circuit board;

[0017] A conductive layer is provided on the insulating and heat-insulating layer, and a protective coating is provided on the conductive layer;

[0018] The conductive layer at least partially passes through the protective coating layer and contacts the conductive portion.

[0019] Furthermore, the heat conducting element has a heat conducting element plug-in end on one side facing the heat sink, and the front end of the heat sink has a heat sink slot;

[0020] The heat conducting member plug-in end is embedded in the heat sink slot.

[0021] The technical solution of the present invention further provides a lamp, comprising a lens and the lamp body described in the above item;

[0022] The lens is detachably mounted on the front end of the lamp tube.

[0023] Further, the lens includes a first lens;

[0024] The first lens comprises a first lens barrel, in which a first lens capable of sliding forward and backward along the first lens barrel is arranged;

[0025] A lamp tube lens is arranged in the lamp tube;

[0026] A film holder ring is installed at the front end of the lamp tube, and a pluggable film holder is arranged on the film holder ring;

[0027] The front part of the film holder ring is connected with a connecting ring, and the first lens barrel is detachably connected to the connecting ring;

[0028] The lamp tube lens is located between the film holder ring and the light mixer.

[0029] Furthermore, the connecting ring has a first clamping ring, the rear end of the first lens barrel has a second clamping ring, and the first clamping ring is clamped with the second clamping ring;

[0030] A first positioning hole is provided on the first clamp ring, and a second positioning hole is provided on the second clamp ring;

[0031] A positioning pin capable of moving forward and backward is provided in the connecting ring, and the positioning pin is slidably arranged in the first positioning hole;

[0032] The positioning pin is connected with a positioning pin driving spring for driving the positioning pin to move forward and be inserted into the second positioning hole;

[0033] The connecting ring is provided with a driving button for driving the positioning pin to move backward and out of the second positioning hole.

[0034] Furthermore, a baffle mounting ring is installed at the rear of the connecting ring, and at least one shielding sheet capable of shielding the central hole of the baffle mounting ring is movably arranged on the baffle mounting ring.

[0035] Further, the first lens barrel comprises a fixed barrel and a rotating ring, and the fixed barrel is detachably connected to the connecting ring;

[0036] The rotating ring is sleeved on the fixed cylinder and can rotate on the fixed cylinder;

[0037] The wall of the fixed cylinder is provided with a wall opening extending along the axial direction;

[0038] The first lens is mounted in the fixed barrel via a first lens mounting ring;

[0039] The first lens mounting ring is provided with a boss, and the boss gap fits in the opening of the barrel wall;

[0040] The inner surface of the rotating ring is provided with a spiral groove, and the boss is provided with a convex rib;

[0041] The convex rib is loosely fitted in the spiral groove.

[0042] Further, the lens includes a second lens;

[0043] The second lens comprises a second lens barrel, in which a second lens and a film mounting ring are fixedly mounted, and the film mounting ring is located at the front side of the second lens;

[0044] A focusing lens is installed at the front end of the second lens barrel;

[0045] The second lens barrel is connected to the lamp barrel via a rotating connecting ring, the rotating connecting ring is rotatably connected to the lamp barrel, and the second lens barrel is fixedly connected to the rotating connecting ring;

[0046] The light guide tube is located in the second lens tube and faces the film installation ring.

[0047] The above technical solution has the following beneficial effects:

[0048] The lamp body provided by the present invention can mix the light emitted by each lamp bead by installing more than two lamp beads on a circuit board and configuring a light mixer. On the one hand, the brightness of the light can be improved, and on the other hand, the color of the light can be mixed to achieve a mixed light effect to meet different lighting and projection requirements.

[0049] In the lamp body provided by the present invention, the heat conduction path and the electric conduction path of the circuit board are separated, so that a better heat dissipation effect can be achieved.

[0050] The lamp provided by the present invention has a lens detachably mounted on the front end of the lamp body, which facilitates assembly and replacement of the lens to meet different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A cross-sectional view of a lamp body provided by an embodiment of the present invention;

[0052] Figure 2 A schematic diagram of installing more than two lamp beads on a circuit board;

[0053] Figure 3 is a stereogram of a light mixer;

[0054] Figure 4 is a cross-sectional view of the light mixer;

[0055] Figure 5 It is a cross-sectional view of a circuit board, a heat sink, an insulating layer, a conductive layer, and a protective layer;

[0056] Figure 6 for Figure 5 Exploded diagram of

[0057] Figure 7 It is a partial enlarged view of the circuit board, radiator, insulation layer, conductive layer and protective layer;

[0058] Figure 8 A three-dimensional diagram of a lamp of a first structure provided by an embodiment of the present invention;

[0059] Fig. 9 for Figure 8 A cross-sectional view of the lamp body and the first lens barrel shown;

[0060] Fig.10 An exploded view of the fixing ring, film carrier ring, and film debonding;

[0061] Fig.11 An exploded view of the film carrier ring, baffle mounting ring, baffle plate and connecting ring;

[0062] Fig.12 An exploded view of a connecting ring, a first snap ring, a second snap ring, a positioning pin, and a driving button;

[0063] Fig.13 A cross-sectional view of a connecting ring, a first snap ring, a second snap ring, a positioning pin, and a driving button assembled together;

[0064] Fig.14 This is an exploded view of the first lens barrel;

[0065] Fig.15 is a cross-sectional view of the first lens barrel;

[0066] Fig.16 is a stereogram of a rotating ring;

[0067] Fig.17 is a stereogram of a first lens mounting ring;

[0068] Fig.18 A three-dimensional diagram of a lamp of a second structure provided by an embodiment of the present invention;

[0069] Fig.19 for Fig.18 A cross-sectional view of the lamp body and the second lens barrel shown;

[0070] Fig. 20 This is an exploded view of the second lens barrel. DETAILED DESCRIPTION

[0071] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0072] like Figure 1-4 As shown, a lamp body 1 provided in an embodiment of the present invention includes a lamp tube 11 , a heat sink 12 , a heat conductor 13 , a circuit board 14 , lamp beads 15 and a light mixer 16 .

[0073] The heat sink 12 is installed in the lamp tube 11 , the heat conducting member 13 is installed on the heat sink 12 , and the circuit board 14 is installed on the heat conducting member 13 .

[0074] 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 tube 11 .

[0075] The light mixer 16 is installed in the lamp tube 11 and is located on the front side of the circuit board 14 .

[0076] The light mixer 16 includes a light guide 161 and a light guide tube 162 connected to the light guide 161 .

[0077] Two or more light guide columns 1611 are disposed at intervals on one side of the light guide 161 facing the circuit board 14 , and one end of the light guide 161 facing the light guide cylinder 162 has a light guide terminal 1612 .

[0078] The front side of each lamp bead 15 corresponds to a light guide column 1611 , and the light guide terminal 1612 is embedded in the light guide cylinder 162 .

[0079] The present invention provides a lamp body 1 which can be used in lighting lamps and projection lamps and is used to provide a light source for a lamp holder, a lens barrel and the like.

[0080] The lamp body 1 provided by the present invention mainly includes a lamp tube 11, a heat sink 12, a heat conductor 13, a circuit board 14, a lamp bead 15 and a light mixer 16.

[0081] The radiator 12 is fixedly installed in the lamp tube 11 by means of screws or brackets. Generally, the radiator 12 is installed at the rear end of the lamp tube 11 .

[0082] The heat-conducting member 13 is installed at the front end of the radiator 12 through a mounting ring, a bracket or a screw, and is used to transfer the heat generated by the lamp beads 15 to the radiator 12 and dissipate the heat through the radiator 12 .

[0083] The heat conducting member 13 may be a metal heat conducting member, such as a metal heat conducting ring, a metal heat conducting sheet, a copper insert, etc. Preferably, a copper insert is used, which has a good heat conducting effect.

[0084] The circuit board 14 is a printed circuit board, which is mounted on the heat conductor 13. The circuit board 14 can be connected to an external circuit or a battery through a wire to supply power to the lamp bead 15.

[0085] The lamp bead 15 can be an LED lamp bead, a white light lamp bead, or a colored light lamp bead.

[0086] At least two lamp beads 15 are mounted on the circuit board 14. The two or more lamp beads 15 can all be white light lamp beads, or lamp beads of different colors. For example, each lamp bead 15 can emit light of one color, and the colors of the lights emitted by adjacent lamp beads 15 are different.

[0087] The light mixer 16 is fixedly installed in the lamp tube 11 through a bracket or a mounting ring. The light mixer 16 is located in front of the circuit board 14 .

[0088] The light mixer 16 is a light-guiding element, which is made of a light-guiding material that can guide light, for example, it can be made of optical-grade acrylic / PC board.

[0089] The light mixer 16 is used to mix the light emitted by more than two lamp beads 15 and then transmit the mixed light out.

[0090] The two or more lamp beads 15 can be selected to emit light of the same color, or can be selected to emit light of different colors.

[0091] The light mixer 16 can mix lights of different colors to output pure white light or colored light to meet the requirements of projection color. The light mixer 16 can also mix the brightness of different lights to increase the light intensity.

[0092] Mixed light, also known as mixed light, refers to two or more visible lights of different frequencies mixed together under certain visible conditions.

[0093] The light mixer 16 includes a light guide 161 and a light guide tube 162 . The light guide tube 162 is connected to the front side of the light guide 161 .

[0094] One side of the light guide body 161 is provided with two or more light guide columns 1611 at intervals, and the light guide columns 1611 extend toward the lamp beads 15. The number of light guide columns 1611 is consistent with the number of lamp beads 15, and the arrangement is consistent, so that each lamp bead 15 has a corresponding light guide column 1611 in front of the front side, and each light guide column 1611 is used to guide the light of the corresponding lamp bead 15. Each light guide column 1611 is arranged in front of a corresponding lamp bead 15. The light guide column 1611 can be in contact with the lamp bead 15, or it can be separated from the lamp bead 15 by a certain distance.

[0095] The other end of the light guide body 161 has a light guide terminal 1612, which 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 each light guide column 1611 and transmit it to the light guide cylinder 162, and finally the light guide cylinder 162 transmits the mixed light.

[0096] Part of the light is directly conducted through the through hole of the light guide tube 162, and part of the light is conducted through the wall of the light guide tube 162. The light conducted from the light guide tube 162 is mixed light of more than two lamp beads 15, which can be light after color mixing or light after brightness mixing.

[0097] Therefore, the lamp body provided by the present invention can mix the light emitted by each lamp bead by installing more than two lamp beads on a circuit board and configuring a light mixer. On the one hand, the brightness of the light can be improved, and on the other hand, the color of the light can be mixed to achieve a mixed light effect to meet different lighting and projection needs.

[0098] In one embodiment, if Figure 4 As shown, the light guide tube 162 has a light guide baffle 1621, and the light guide terminal 1612 is in contact with the light guide baffle 1621, so that part of the light transmitted from the light guide terminal 1612 is transmitted to the tube wall of the light guide tube 162 through the light guide baffle 1621, and then transmitted out from the tube wall of the light guide tube 162, and part of the light is directly transmitted through the light guide baffle 1621 and transmitted out from the through hole of the light guide tube 162.

[0099] In one embodiment, if Figure 5-7 As shown, a conductive portion 141 and a heat transfer portion 142 are provided at intervals on one side of the circuit board 14 facing the heat conductor 13 .

[0100] The heat conductor 13 includes a heat conductor base 131 and a heat conductor protrusion 132 disposed on the heat conductor base 131 , and the heat conductor protrusion 132 contacts the heat transfer portion 142 .

[0101] An insulating layer 133 is disposed on a side of the heat conducting member base 131 facing the circuit board 14 .

[0102] A conductive layer 134 is provided on the insulating and heat-insulating layer 133 , and a protective coating layer 135 is provided on the conductive layer 134 .

[0103] The conductive layer 134 at least partially passes through the protective coating layer 135 and contacts the conductive portion 141 .

[0104] 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 .

[0105] 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 the heat on the circuit board 14 .

[0106] In order to separate the conductive path and the heat dissipation path of the circuit board 14, the following arrangement is adopted:

[0107] The heat conducting member 13 includes a heat conducting member base 131 and a heat conducting member protrusion 132, and the heat conducting member protrusion 132 is integrally arranged in the middle of the heat conducting member base 131. During assembly, the heat conducting member protrusion 132 contacts the heat transfer portion 142, so that the heat emitted by the lamp bead 15 can be transferred to the heat sink 12 through the circuit board 14, the heat transfer portion 142, the heat conducting member protrusion 132, and the heat conducting member base 131 for heat dissipation.

[0108] At least one insulating heat-insulating layer 133 is disposed on the surface of the heat-conducting member base 131. The insulating heat-insulating layer 133 has both insulating and heat-insulating functions.

[0109] A conductive layer 134 is arranged on the insulating layer 133. The conductive layer 134 may be a printed circuit layer or a wire layer. The conductive layer 134 is connected to an external circuit or a battery.

[0110] A protective coating 135 is coated on the conductive layer 134. The protective coating 135 may be a white oil layer.

[0111] The conductive layer 134 has a raised portion. During assembly, the raised portion of the conductive layer 134 passes through the protective coating 135 and contacts the conductive portion 141. The current in the conductive layer 134 can be transferred to the circuit board 14 through the raised portion and the conductive portion 141, thereby achieving conduction.

[0112] The insulating and heat-insulating layer 133 can play an insulating role on the one hand to prevent the conductive layer 134 from leaking electricity; on the other hand, the insulating and heat-insulating layer 133 can also play a heat-insulating role to prevent the heat in the heat-conducting member base 131 from being transferred to the conductive layer 134 and affecting the conductive performance. By providing the insulating and heat-insulating layer 133 between the conductive layer 134 and the heat-conducting member base 131, the heat dissipation path and the conductive path of the circuit board 14 are separated and do not affect each other, thereby improving the heat dissipation and conductive performance.

[0113] The insulating and heat-insulating layer 133 may be a rubber layer, which has both an insulating effect and a heat-insulating effect.

[0114] In one embodiment, if Figure 1 As shown, the heat conducting member 13 has a heat conducting member plug-in terminal 130 on one side facing the heat sink 12, and the heat sink 12 has a heat sink slot at the front end. The heat conducting member plug-in terminal 130 is embedded in the heat sink slot.

[0115] The heat-conducting member plug-in terminal 130 is integrally formed at the rear end of the heat-conducting member 14, and the heat sink slot is arranged at the front end of the heat sink 12. The heat-conducting member plug-in terminal 130 is embedded in the heat sink slot from front to back, which improves the connection stability between the heat-conducting member 13 and the heat sink 12 on the one hand, and is also conducive to quickly transferring the heat on the heat-conducting member 13 to the heat sink 12 on the other hand, so as to achieve a better heat dissipation effect.

[0116] like Figure 8 and Fig.18 As shown, a lamp provided by an embodiment of the present invention comprises a lens 2 and a lamp body 1 described in any of the above embodiments. The lens 2 is detachably mounted on the front end of the lamp tube 11.

[0117] The lens 2 can be connected to the lamp tube 11 by threading or by snap-fitting.

[0118] The lens 2 may be a focus lens or a projection lens, and projects the mixed light transmitted by the light mixer 16 to a designated area.

[0119] In one embodiment, if Figure 9-10 and Figure 14-15 As shown, the lens 2 includes a first lens 21 .

[0120] The first lens 21 includes a first lens barrel 211 , in which a first lens 210 is disposed that can slide forward and backward along the first lens barrel 211 .

[0121] A lamp tube lens 17 is disposed in the lamp tube 11 , and the lamp tube lens 17 is located in front of the light mixer 16 .

[0122] A film holder ring 4 is installed at the front end of the lamp tube 11 , and a pluggable film holder 41 is arranged on the film holder ring 4 .

[0123] The front part of the film holder ring 4 is connected with a connecting ring 5 , and the first lens barrel 211 is detachably connected to the connecting ring 5 .

[0124] The lamp tube lens 17 is located between the film holder ring 4 and the light mixer 16 .

[0125] In this embodiment, the lens 2 adopts a first lens 21, which is a focusing lens. At least one first lens 210 is arranged in a first lens barrel 211 of the first lens 21, and the first lens 210 can slide back and forth along the first lens barrel 211 for focusing. The first lens 210 can be a convex lens.

[0126] A tube lens 17 is disposed in the tube 11 , and the tube lens 17 may be a convex lens. The tube lens 17 is used for imaging. The tube lens 17 is located in front of the light mixer 16 .

[0127] The front end of the lamp tube 11 is provided with a film holder ring 4, on which a pluggable film holder 41 is arranged. The rear side of the film holder ring 4 is provided with an opening slot 40, into which the film holder 41 can be inserted or pulled out. The film holder 41 is used to install films.

[0128] A lens fixing ring 18 is installed at the front end of the lamp tube 11, and the lamp tube lens 17 is installed in the lens fixing ring 18. The lens fixing ring 18 is installed at the front end of the lamp tube 11 by screws 181. The film holder ring 4 is connected to the front side of the lens fixing ring 18 by screws.

[0129] The connecting ring 5 is connected to the front of the film holder ring 4 by screws, and the first lens barrel 211 is connected to the connecting ring 5 by threads or buckles, so that the first lens barrel 211 and the connecting ring 5 are detachably connected, which facilitates the replacement of the first lens 21.

[0130] Preferably, two lamp barrel lenses 17 are arranged at intervals in the lamp barrel 11 , and two first lenses 210 are arranged at intervals in the first lens barrel 211 .

[0131] When in use, the film is mounted on the film holder 41, and the film holder 41 is inserted into the opening slot 40. The light emitted by the lamp bead 15 is mixed by the light mixer 16, and then irradiated onto the film after passing through the lamp tube lens 17. The light is then projected through the first lens 210, thereby projecting the pattern information on the film. In this process, the first lens 210 can be slid to adjust the distance between it and the film, and focus can be adjusted so that the pattern information can be projected clearly.

[0132] The lamp provided by the present invention can achieve precise focusing and improve the clarity of projection by configuring the first lens at the front end of the lamp body.

[0133] In one embodiment, if Figure 12-13 As shown, the connecting ring 5 has a first clamping ring 7 , and the rear end of the first lens barrel 211 has a second clamping ring 8 , and the first clamping ring 7 is clamped with the second clamping ring 8 .

[0134] 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 .

[0135] A positioning pin 51 that can move forward and backward is provided in the connecting ring 5 , and the positioning pin 51 is slidably disposed in the first positioning hole 71 .

[0136] The locating pin 51 is connected with a locating pin driving spring 54 for driving the locating pin 51 to move forward and insert into the second locating hole 81 , and the connecting ring 5 is provided with a driving button 52 for driving the locating pin 51 to move backward and move out of the second locating hole 81 .

[0137] The first snap ring 7 is provided with two or more claws 72 at intervals, and the second snap ring 8 is provided with a corresponding groove. When the first lens 21 is rotated toward the first direction and the second snap ring 8 is driven to rotate, the groove of the second snap ring 8 can be engaged with the claw 72 of the first snap ring 7, and the first lens 21 is installed on the connecting ring 5; when the first lens 21 is rotated toward the second direction opposite to the first direction and the second snap ring 8 is driven to rotate, the groove and the claw 72 can be disengaged, and the first lens 21 can be removed from the connecting ring 5.

[0138] A first positioning hole 71 is provided on the first retaining ring 7 , and a second positioning hole 81 is provided on the second retaining ring 8 . As the first lens 21 rotates, the second positioning hole 81 may be aligned with or offset from the first positioning hole 71 .

[0139] The positioning pin 51 is arranged in the connecting ring 5, and a positioning column 53 extending toward the second clamping ring 8 is arranged on the connecting ring 5. The rear side of the positioning pin 51 has a slide groove 512, and the positioning column 53 is inserted into the slide groove 512. The two are clearance-matched, so that the positioning pin 51 can slide back and forth on the positioning column 53. The front end of the positioning pin 51 is slidably arranged 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 also smaller than the diameter of the second positioning hole 81.

[0140] The positioning pin drive spring 54 is sleeved on the positioning column 53 and is pre-tightened between the positioning pin 51 and the rear end of the positioning column 53. The positioning pin drive spring 54 is used to drive the positioning pin 51 to move toward the second snap ring 8 so that the front 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 the two cannot be disassembled.

[0141] The driving button 52 is arranged on the connecting ring 5 , and is used to drive the positioning pin 51 to move backward and out of the second positioning hole 81 . At this time, the second retaining ring 8 can rotate relative to the first retaining ring 7 , and the first lens 21 can be removed from the connecting ring 5 .

[0142] Specifically, the driving button 52 includes a button portion 520 and a contact 521 connected to the button portion 520. The button portion 520 includes a button portion head 5201 and a button portion column 5202, the button portion column 5202 is connected to the button portion head 5201, and the contact 521 is connected to the button portion column 5202.

[0143] A radial through hole 50 is provided on the connecting ring 5 , and the button portion cylindrical portion 5202 is loosely fitted in the radial through hole 50 . The button portion head portion 5201 is located outside the connecting ring 5 .

[0144] The side of the positioning pin 51 facing the contact 521 has an inclined protrusion 511. The surface of the protrusion 511 facing the contact 521 is a protrusion inclined surface 5111. In the direction from front to back, the protrusion inclined surface 5111 gradually inclines toward the contact 521.

[0145] The button portion 520 can drive the contact 521 to slide back and forth along the radial direction of the connecting ring 5. A column driving spring 55 is provided in the radial through hole 50 for driving the button column 5202 to move outward along the radial direction of the connecting ring 5. The column driving spring 55 is installed in the radial through hole 50 and sleeved on the button column 5202. The column driving spring 55 is an expansion spring.

[0146] When the button head 5201 is pressed, the contact 521 moves toward the raised portion inclined surface 5111 and contacts the raised portion inclined surface 5111, thereby pushing the positioning pin 51 to move backward, so that the front end of the positioning pin 51 is disengaged from the second positioning hole 81. At this time, the second retaining ring 8 can be rotated relative to the first retaining ring 7, and the first lens 21 can be removed from the connecting ring 5.

[0147] When the force acting on the button head 5201 is released, the contact 521 leaves the raised portion inclined surface 5111 under the action of the column driving spring 55, and the positioning pin 51 moves forward and is inserted into the second positioning hole 81 under the action of the positioning pin driving spring 54. At this time, the second snap ring 8 cannot rotate relative to the first snap ring 7, the two cannot be disassembled, and the first lens 21 cannot be removed from the connecting ring 5.

[0148] In one embodiment, if Fig.11 As shown, a baffle mounting ring 6 is also installed at the rear of the connecting ring 5 , and at least one shielding piece 61 capable of shielding the central hole 60 of the baffle mounting ring 6 is movably arranged on the baffle mounting ring 6 .

[0149] The baffle mounting ring 6 can be installed in the rear end opening of the connecting ring 5, and the shielding piece 61 is installed on the baffle mounting ring 6. The position of the shielding piece 61 on the baffle mounting ring 6 can be moved to block the center hole 60 of the baffle mounting ring 6, thereby changing the area where light can be emitted and changing the light pattern.

[0150] The baffle installation ring 6 may be a magnetic ring, and the shielding piece 61 may be a metal baffle that can be adsorbed by a magnet, so that the shielding piece 61 can be moved arbitrarily on the baffle installation ring 6 and can be adsorbed and fixed.

[0151] In one embodiment, if Fig. 9 , Figure 14-17 As shown, the first lens barrel 211 includes a fixed barrel 2111 and a rotating ring 2112 , and the fixed barrel 2111 is detachably connected to the connecting ring 5 .

[0152] The rotating ring 2112 is sleeved on the fixed cylinder 2111 and can rotate on the fixed cylinder 2111 .

[0153] A wall opening 21133 extending along the axial direction is provided on the wall of the fixed cylinder 2111 .

[0154] The first lens 210 is mounted in the fixing tube 2111 via a first lens mounting ring 212 .

[0155] A boss 2121 is provided on the first lens mounting ring 212 , and the boss 2121 is loosely fitted in the opening 21133 of the tube wall.

[0156] A spiral groove 2114 is provided on the inner surface of the rotating ring 2112 , and a rib 2122 is provided on the boss 2121 .

[0157] The rib 2122 is loosely fitted in the spiral groove 2114 .

[0158] The first lens barrel 21 includes a fixed barrel 2111 , a rotating ring 2212 , a first lens mounting ring 212 and an end cover 213 .

[0159] The fixing tube 2111 is detachably connected to the connecting ring 5. A tube wall opening 21133 is provided on the tube wall of the fixing tube 2111, and the tube wall opening 21133 extends along the axial direction. The tube wall opening 21133 is a long strip opening.

[0160] The rotating ring 2112 is sleeved on the fixed cylinder 2111 and can rotate on the fixed cylinder 2111. An anti-slip portion is provided on the outer surface of the rotating ring 2112 to facilitate the user to hold and rotate the rotating ring 2112. A spiral groove 2114 is provided on the inner surface of the rotating ring 2112. The spiral groove 2114 is spirally arranged on the inner surface of the rotating ring 2112 and extends along the axial direction of the rotating ring 2112.

[0161] The boss 2121 is integrally formed on the outer surface of the first lens mounting ring 212 and protrudes outward along the radial direction of the first lens mounting ring 212. The rib 2122 is integrally formed on the surface of the boss 2121 and can cooperate with the spiral groove 2114.

[0162] During assembly, the boss 2121 is inserted into the cylinder wall opening 2113, and the boss 2121 is loosely matched with the cylinder wall opening 2113, so that the boss 2121 can slide forward and backward along the cylinder wall opening 2113. The rib 2122 is loosely matched with the spiral groove 2114, so that the rib 2122 can slide relative to the spiral groove 2114.

[0163] The first lens 210 is assembled in the first lens mounting ring 212. When not in use, the end cap 213 can be buckled on the front end of the fixing tube 2111 to play a dust-proof role.

[0164] When focusing is required, the rotating ring 2112 can be rotated on the fixed tube 2111. Under the action of the spiral groove 2114, the rib 2122 will move back and forth, thereby driving the boss 2121 to slide back and forth in the tube wall opening 2113, and finally driving the first lens mounting ring 212 and the first lens 210 to slide back and forth in the fixed tube 2111, thereby adjusting the distance between the first lens 210 and the film holder ring 4, thereby realizing the projection focusing function.

[0165] In one embodiment, if Fig.15 and Fig.17 As shown, a guide track 2115 extending along the axial direction is provided on the inner surface of the fixing cylinder 2111. A guide groove 2123 is provided on the outer surface of the first lens mounting ring 212. The guide track 2115 and the guide groove 2123 are clearance-matched.

[0166] The guide track 2115 may be a guide convex strip disposed on the inner surface of the fixed tube 2111, and extends along the axial direction of the fixed tube 2111. The guide track 2115 and the guide groove 2123 are clearance-matched and can slide relative to each other, providing a guide function for the forward and backward movement of the first lens mounting ring 212.

[0167] In one embodiment, if Figure 8-Figure 9 and Figure 14-15 As shown, two rotating rings 2112 arranged front to back are mounted on the fixed cylinder 2111 , and two first lens mounting rings 212 are arranged front to back in the fixed cylinder 2111 . A first lens 210 is disposed in each first lens mounting ring 212 .

[0168] Correspondingly, two cylinder wall openings 2113 are provided on the fixed cylinder 2111 , and the two cylinder wall openings 2113 are arranged front and back on the fixed cylinder 2111 .

[0169] The bosses 2121 on the two first lens mounting rings 212 pass through the two tube wall openings 2113 respectively.

[0170] The convex ribs 2212 on the two bosses 2121 correspond to and cooperate with the spiral grooves 2114 in the two rotating rings 2112 .

[0171] That is, two rotating rings 2112 are arranged on the fixed tube 2111 , two first lens mounting rings 212 respectively mounting the first lenses 210 are arranged inside the fixed tube 2111 , and two tube wall openings 2113 are arranged on the fixed tube 2111 .

[0172] Two rotating rings 2112 are arranged on the fixed cylinder 2111 at intervals in front and back, two first lens mounting rings 212 are arranged in the fixed cylinder 2111 at intervals in front and back, and two cylinder wall openings 2113 are arranged on the fixed cylinder 2111 at intervals in front and back.

[0173] During assembly, the boss 2121 on the first lens mounting ring 212 on the front side passes through the opening 2113 of the barrel wall on the front side, and the convex rib 2122 on the boss 2121 cooperates with the spiral groove 2114 in the rotating ring 2112 on the front side; the boss 2121 on the first lens mounting ring 212 on the rear side passes through the opening 2113 of the barrel wall on the rear side, and the convex rib 2122 on the boss 2121 cooperates with the spiral groove 2114 in the rotating ring 2112 on the rear side.

[0174] The focusing capability can be enhanced and the projection clarity and projection area can be improved by adjusting the distance between the two first lenses 210 .

[0175] In one embodiment, if Figure 18-Figure 20 As shown, the lens 2 includes a second lens 22 .

[0176] The second lens 22 includes a second lens barrel 221 , in which a second lens 220 and a film mounting ring 223 are fixedly mounted. The film mounting ring 223 is located at the front side of the second lens 220 .

[0177] A focusing lens 225 is mounted at the front end of the second lens barrel 221 .

[0178] The second lens barrel 221 is connected to the lamp barrel 11 via a rotating connecting ring 9 . The rotating connecting ring 9 is rotatably connected to the lamp barrel 11 . The second lens barrel 221 is fixedly connected to the rotating connecting ring 9 .

[0179] The light guide tube 162 is located in the second lens tube 221 and faces the film mounting ring 223 .

[0180] In this embodiment, the lens 2 adopts a second lens 22, which is a rotating lens. The second lens 22 includes a second lens barrel 221, a second lens 220, a film mounting ring 223 and a focusing lens 225. The second lens 220 and the film mounting ring 223 are respectively fixedly mounted in the second lens barrel 221, and the film mounting ring 223 is located at the front side of the second lens 220.

[0181] The second lens 220 is installed in the lens fixing tube 222. Two or more second lenses 220 may be installed at intervals in the lens fixing tube 222. The lens fixing tube 222 is fixedly installed in the second lens barrel 221.

[0182] When in use, a film 224 is installed in the film installation ring 223. The film 224 may be printed with pattern information, such as LOGO, text, pattern, etc.

[0183] The rear end of the rotating connecting ring 9 is rotatably connected to the lamp tube 11 . For example, the rotating connecting ring 9 and the lamp tube 11 are connected by threads or bearings, so that the rotating connecting ring 9 can rotate relative to the lamp tube 11 .

[0184] The second lens barrel 221 is fixedly connected to the front end of the rotating connecting ring 9 , so that the second lens barrel 221 can rotate together with the rotating connecting ring 9 .

[0185] The focusing lens 225 is mounted at the front end of the second lens barrel 221 and is used for focusing so that the pattern information on the film 224 can be projected clearly. The focusing lens 225 has a focusing lens.

[0186] The focusing lens 225 can be threadedly connected to the second lens barrel 221 so as to be able to move forward and backward relative to the second lens barrel 221 to adjust the distance between the focusing lens 225 and the film 224 to adjust the focal length. Of course, the focusing lens 225 can also be retractable by itself, for example, by using two threaded connection sleeves, in which the focusing lens is installed, and the two sleeves rotate relative to each other, so as to adjust the distance between the focusing lens and the film 24 to adjust the focal length.

[0187] The light emitted by the lamp bead 15 is mixed by the light mixer 16 and then projected to the second lens 220 , and then focused by the second lens 220 and projected onto the film 224 , and then projected out through the focusing lens 225 , so that the pattern information on the film 224 can be projected out.

[0188] When the angle of the pattern information projected by the film 224 does not meet the requirement, the second lens barrel 221 can be rotated to adjust the angle of the film 224 so that the projected pattern information is aligned for easy operation.

[0189] The lamp provided by the present invention can realize rotation and adjust the position of the film to make it aligned by configuring the second lens at the front end of the lamp body.

[0190] In one embodiment, if Figure 19-20 As shown, the second lens barrel 221 includes an outer sleeve 2211 and an inner sleeve 2212 located in the outer sleeve 2211 .

[0191] The rear ends of the outer sleeve 2211 and the inner sleeve 2212 are respectively connected to the rotating connecting ring 9 .

[0192] The second lens 220 and the film mounting ring 223 are fixedly mounted in the inner sleeve 2212 respectively.

[0193] The focusing lens 225 is mounted at the front end of the inner sleeve 2212 .

[0194] The radius of the outer sleeve 2211 is greater than the radius of the inner sleeve 2212, and the inner sleeve 2212 is located in the outer sleeve 2211. The rotating connecting ring 9 has an outer ring 91 and a center ring 92 extending forward. The rear end of the outer sleeve 2211 is threadedly connected or clamped with the outer ring 91, and the rear end of the inner sleeve 2212 is screwed or clamped with the center ring 92.

[0195] The lens fixing tube 222 is fixedly mounted in the inner sleeve 2212 through the lens fixing ring 228, and the film mounting ring 223 is fixedly mounted in the inner sleeve 2212. The focus lens 225 is mounted at the front end of the inner sleeve 2212 through the lens mounting ring 227. The focus lens 225 can be threadedly connected with the lens mounting ring 227 to achieve telescopic movement. A decorative cover 226 is mounted at the front end of the outer sleeve 2211 and the inner sleeve 2212.

[0196] When the outer sleeve 2211 is rotated, the inner sleeve 2212 also rotates integrally therewith, thereby driving 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.

[0197] In one embodiment, a hanging member 3 is further connected to the lamp tube 11 . The hanging member 3 includes a ceiling cup 31 , a hanging arm 32 , a spring clip fixing ring 33 and a spring clip 34 .

[0198] The lower end of the suspension arm 32 is pivotally connected to the lamp tube 11 , and the upper end of the suspension arm 32 is pivotally connected to the ceiling plate 31 .

[0199] The spring clip fixing ring 33 is fixedly mounted on the top suction cup 31 , and the spring clip 34 is mounted on the spring clip fixing ring 33 .

[0200] The lower end of the suspension arm 32 is pivotally connected to the lamp tube 11, and the pitch angle of the lamp tube 11 can be adjusted. Specifically, the lower end of the suspension arm 32 is connected to the lamp tube 11 through a pin or a pin shaft.

[0201] The upper end of the arm 32 is pivotally connected to the ceiling plate 31, and the rotation angle of the arm 32 in the horizontal plane can be adjusted, thereby adjusting the left and right swing angle of the lamp tube 11. Specifically, the upper end of the arm 32 is connected to the ceiling plate 31 through a pivot pin.

[0202] The spring clip fixing ring 33 is fixedly mounted on the top of the ceiling cup 31, and the spring clip 34 is mounted on the spring clip fixing ring 33. The spring clip 34 is used to be placed on the ceiling to hang the projection lamp. When installing the projection lamp, the spring clip fixing ring 33 passes through the installation hole of the ceiling, the spring clip 34 is placed on the ceiling, and the ceiling cup 31 is basically placed on the installation hole of the ceiling to cover it.

[0203] The spring clip 34 is a bracket with a torsion spring, which is sleeved on the bracket and connected to the spring clip fixing ring 33. The torsion spring is used to drive the bracket to contract toward the spring clip fixing ring 33. When the spring clip 34 is placed on the ceiling, the end of the bracket is firmly pressed against the ceiling under the action of the torsion spring, thereby improving the stability of the suspended projection lamp.

[0204] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0205] The above description is only the principle and preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several other modifications can be made based on the principle of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A lamp body (1), characterized in that: It comprises a lamp tube (11), a heat sink (12), a heat conducting member (13), a circuit board (14), a lamp bead (15) and a light mixer (16); The heat sink (12) is mounted in the lamp tube (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 tube (11); The light mixer (16) is installed in the lamp tube (11), and the light mixer (16) is located on the front side of the circuit board (14); The light mixer (16) comprises a light guide (161) and a light guide cylinder (162) connected to the light guide (161); One side of the light guide (161) facing the circuit board (14) is provided with more than two light guide columns (1611) at intervals, and one end of the light guide (161) facing the light guide cylinder (162) is provided with a light guide terminal (1612); Each of the lamp beads (15) corresponds to a light guide column (1611), and the light guide terminal (1612) is embedded in the rear end of the light guide cylinder (162); The light guide tube (162) has a light guide baffle (1621), and the light guide terminal (1612) is in contact with the light guide baffle (1621), so that part of the light transmitted from the light guide terminal (1612) is transmitted to the tube wall of the light guide tube (162) through the light guide baffle (1621), and then transmitted out from the tube wall of the light guide tube (162), and part of the light is also transmitted through the light guide baffle (1621) and directly transmitted out from the through hole of the light guide tube (162).

2. The lamp body (1) according to claim 1, characterized in that: A conductive portion (141) and a heat transfer portion (142) are provided at intervals on a side of the circuit board (14) facing the heat conducting member (13); The heat conducting member (13) comprises a heat conducting member base (131) and a heat conducting member protrusion (132) arranged on the heat conducting member base (131), wherein the heat conducting member protrusion (132) is in contact with the heat transfer portion (142); An insulating heat-insulating layer (133) is provided on a side of the heat-conducting member base (131) facing the circuit board (14); A conductive layer (134) is provided on the insulating and heat-insulating layer (133), and a protective coating (135) is provided on the conductive layer (134); The conductive layer (134) at least partially passes through the protective coating (135) and contacts the conductive portion (141).

3. The lamp body (1) according to claim 1 or 2, characterized in that: The heat conducting element (13) has a heat conducting element plug-in end (130) on one side facing the heat sink (12), and the front end of the heat sink (12) has a heat sink slot; The heat conducting component plug-in end (130) is embedded in the heat sink slot.

4. A lamp, characterized in that: Comprising a lens (2) and a lamp body (1) according to any one of claims 1 to 3; The lens (2) is detachably mounted on the front end of the lamp tube (11).

5. The lamp according to claim 4, characterized in that: The lens (2) comprises a first lens (21); The first lens (21) comprises a first lens barrel (211), wherein the first lens barrel (211) is provided with a first lens (210) capable of sliding forward and backward along the first lens barrel (211); A lamp tube lens (17) is arranged in the lamp tube (11); a film holder ring (4) is installed at the front end of the lamp tube (11); a pluggable film holder (41) is arranged on the film holder ring (4); The front part of the film holder ring (4) is connected to a connecting ring (5), and the first lens barrel (211) is detachably connected to the connecting ring (5); The lamp tube lens (17) is located between the film holder ring (4) and the light mixer (16).

6. The lamp according to claim 5, characterized in that: The connecting ring (5) has a first clamping ring (7), the rear end of the first lens barrel (211) has a second clamping ring (8), and the first clamping ring (7) is clamped with the second clamping ring (8); A first positioning hole (71) is provided on the first clamping ring (7), and a second positioning hole (81) is provided on the second clamping ring (8); A positioning pin (51) capable of moving forward and backward is provided in the connecting ring (5), and the positioning pin (51) is slidably arranged in the first positioning hole (71); The positioning pin (51) is connected to a positioning pin driving spring (54) for driving the positioning pin (51) to move forward and be inserted into the second positioning hole (81); A driving button (52) for driving the positioning pin (51) to move backward and out of the second positioning hole (81) is arranged on the connecting ring (5).

7. The lamp according to claim 5, characterized in that: A baffle installation ring (6) is also installed at the rear of the connecting ring (5), and at least one shielding sheet (61) capable of shielding a central hole (60) of the baffle installation ring (6) is movably arranged on the baffle installation ring (6).

8. The lamp according to claim 5, characterized in that: The first lens barrel (211) comprises a fixed barrel (2111) and a rotating ring (2112), and the fixed barrel (2111) is detachably connected to the connecting ring (5); The rotating ring (2112) is sleeved on the fixed cylinder (2111) and is capable of rotating on the fixed cylinder (2111); The wall of the fixed cylinder (2111) is provided with a cylinder wall opening (2113) extending along the axial direction; The first lens (210) is mounted in the fixing cylinder (2111) via a first lens mounting ring (212); A boss (2121) is provided on the first lens mounting ring (212), and the boss (2121) is loosely fitted in the barrel wall opening (2113); The inner surface of the rotating ring (2112) is provided with a spiral groove (2114), and the boss (2121) is provided with a convex rib (2122); The convex rib (2122) is loosely fitted in the spiral groove (2114).

9. The lamp according to claim 4, characterized in that: The lens (2) comprises a second lens (22); The second lens (22) comprises a second lens barrel (221), in which a second lens (220) and a film mounting ring (223) are fixedly mounted, and the film mounting ring (223) is located on the front side of the second lens (220); A focusing lens (225) is installed at the front end of the second lens barrel (221); The second lens barrel (221) is connected to the lamp barrel (11) via a rotating connection ring (9); the rotating connection ring (9) is rotatably connected to the lamp barrel (11); and the second lens barrel (221) is fixedly connected to the rotating connection ring (9); The light guide tube (162) is located inside the second lens tube (221) and faces the film installation ring (223).

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