Non-voltage-drop lamp tube for PWM (Pulse-Width Modulation) dimming

Abstract

The utility model discloses a voltage drop-free lamp tube for PWM dimming, which comprises a lamp holder, the bottom surface of the lamp holder is fixedly connected with a first mounting head and a second mounting head respectively, a voltage drop-free lamp tube body is arranged below the lamp holder, the left end and the right end of the voltage drop-free lamp tube body are fixedly connected with a first connector and a second connector respectively, and the first connector and the second connector are fixedly connected with the first mounting head and the second mounting head respectively. A clamping groove is formed in the right side face of the second connector, and a spring is fixedly connected to the inner wall of the second mounting head. A check block is pushed through a spring arranged in the device, under the cooperation of a clamping block and a clamping groove, the non-voltage-drop lamp tube body can be clamped to the lower portion of a lamp holder, when the non-voltage-drop lamp tube body is disassembled, the clamping block in the device is shrunk into a second installation head by pushing a push block, and therefore the non-voltage-drop lamp tube body can be taken down; therefore, by means of the device, the problem that when an existing lamp tube is installed, the lamp tube needs to be installed in a lamp holder through small screws, and installation is inconvenient can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of lamp tubes, in particular to a lamp tube without voltage drop used for PWM dimming. Background Art

[0002] A lamp tube usually refers to a lighting device that can convert electrical energy into light energy. The main components of a lamp tube include the tube body, a filament for emitting electrons, and the gas inside the tube. The working principle of the lamp tube is that electrons generated by gas discharge excite gas atoms to emit light.

[0003] The Chinese patent with publication number CN202382031U discloses a lamp tube, which includes a lamp body, a first lamp holder and a second lamp holder, wherein the first lamp holder and the second lamp holder are respectively fixedly connected to the two ends of the lamp body by screws. The beneficial effect of the utility model is that the lamp holder is fixedly connected to the lamp body by screws to ensure the firmness of the connection between the lamp holder and the lamp body, and at the same time, a plugging plug is embedded in the screw hole to prevent the screw from generating an arc with the set positive terminal and negative terminal under the action of high voltage, thereby avoiding fire and electric shock accidents. However, when installing the existing lamp tube, the lamp tube is usually installed in the lamp holder by using small screws, and this process is carried out at a high place, which makes it inconvenient to install the no-voltage-drop lamp tube. For this reason, we propose a no-voltage-drop lamp tube for PWM dimming to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a voltage drop-free lamp tube for PWM dimming to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A voltage-drop free lamp tube for PWM dimming comprises a lamp holder, the bottom surface of which is fixedly connected with a first mounting head and a second mounting head respectively, a voltage-drop free lamp tube body is arranged below the lamp holder, the left and right ends of the voltage-drop free lamp tube body are fixedly connected with a first connecting head and a second connecting head respectively, a slot is provided on the right side surface of the second connecting head, a spring is fixedly connected to the inner wall of the second mounting head, a block is fixedly connected to the left end of the spring, a block is fixedly connected to the left side surface of the block, the slot is engaged with the block, and a push block is fixedly connected to the bottom surface of the block.

[0007] In a further embodiment, a positioning groove is formed on the inner wall of the first mounting head, a positioning block is fixedly connected to the outer surface of the first connecting head, and the positioning groove is adapted to the positioning block.

[0008] In a further embodiment, a plurality of ventilation holes are formed on the outer surface of the no-pressure-drop lamp body, and a filter is installed inside each of the ventilation holes.

[0009] In a further embodiment, two slide grooves are formed on the inner wall of the second mounting head, and two sliding blocks are fixedly connected to the outer surface of the stopper, and each of the slide grooves is adapted to a sliding block.

[0010] In a further embodiment, two placement grooves are provided on the upper surface of the lamp holder, and adhesive is pasted inside each of the placement grooves.

[0011] In a further embodiment, heat dissipation windows are provided on the front and back of the lamp holder, and a plurality of mounting holes are provided on the upper surface of the lamp holder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a voltage-drop-free lamp tube for PWM dimming. A spring in the device pushes a stopper, and with the cooperation of the card block and the card slot, the voltage-drop-free lamp tube body can be carded under a lamp holder. When the voltage-drop-free lamp tube body is disassembled, the card block in the device is pushed to shrink into a second mounting head, so that the voltage-drop-free lamp tube body can be removed. Therefore, the device can effectively solve the problem that when the existing lamp tube is installed, small screws need to be used to install the lamp tube in the lamp holder, causing inconvenience in installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a voltage drop-free lamp tube for PWM dimming.

[0015] Figure 2 The figure is a schematic diagram of the front cross-section structure of a voltage drop-free lamp tube used for PWM dimming.

[0016] Figure 3 A voltage drop-free lamp for PWM dimming Figure 2 Enlarged structural diagram at A in the middle.

[0017] Figure 4 The figure is a schematic diagram of the side cross-section structure of a second mounting head in a voltage drop-free lamp tube for PWM dimming.

[0018] Figure 5 The figure is a schematic diagram of the side cross-section structure of a voltage drop-free lamp tube for PWM dimming.

[0019] In the figure: 1. lamp holder; 2. heat dissipation window; 3. adhesive; 4. mounting hole; 5. first mounting head; 6. placement slot; 7. second mounting head; 8. voltage drop-free lamp body; 9. positioning slot; 10. positioning block; 11. first connecting head; 12. second connecting head; 13. stopper; 14. push block; 15. spring; 16. slot; 17. block; 18. slide slot; 19. slider; 20. vent; 21. filter. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5In the utility model, a voltage-drop-free lamp tube for PWM dimming includes a lamp holder 1, a first mounting head 5 and a second mounting head 7 are fixedly connected to the bottom surface of the lamp holder 1, a voltage-drop-free lamp tube body 8 is arranged below the lamp holder 1, a first connecting head 11 and a second connecting head 12 are fixedly connected to the left and right ends of the voltage-drop-free lamp tube body 8, a slot 16 is provided on the right side surface of the second connecting head 12, a spring 15 is fixedly connected to the inner wall of the second mounting head 7, a stopper 13 is fixedly connected to the left end of the spring 15, A clamping block 17 is fixedly connected to the left side of the block 13, and the clamping groove 16 is clamped with the block 17. A pushing block 14 is fixedly connected to the bottom surface of the block 13. The block 13 is pushed by a spring 15 provided in the device, and with the cooperation of the clamping block 17 and the clamping groove 16, the voltage-drop-free lamp tube body 8 can be clamped under the lamp holder 1. When the voltage-drop-free lamp tube body 8 is disassembled, the clamping block 17 in the device is retracted into the second mounting head 7 by pushing the pushing block 14, so that the voltage-drop-free lamp tube body 8 can be removed.

[0024] A positioning groove 9 is provided on the inner wall of the first mounting head 5, and a positioning block 10 is fixedly connected to the outer surface of the first connecting head 11. The positioning groove 9 is matched with the positioning block 10. A plurality of ventilation holes 20 are provided on the outer surface of the pressure-drop free lamp tube body 8. A filter screen 21 is installed inside each ventilation hole 20. Through the cooperation of the positioning groove 9 and the positioning block 10, one end of the pressure-drop free lamp tube body 8 can be more easily overlapped with the mounting head. Through the filter screen 21, dust can be prevented from entering the pressure-drop free lamp tube body 8.

[0025] The inner wall of the second mounting head 7 is provided with two slide grooves 18, and the outer surface of the block 13 is fixedly connected with two sliders 19, each slide groove 18 is adapted to the slider 19, and the cooperation of the slide grooves 18 and the slider 19 can make the movement of the block 13 more stable, and the upper surface of the lamp holder 1 is provided with two placement grooves 6, and each placement groove 6 is pasted with adhesive 3, and the front and back sides of the lamp holder 1 are provided with heat dissipation windows 2, and the upper surface of the lamp holder 1 is provided with a plurality of mounting holes 4, and the heat dissipation windows 2 can be used to conveniently dissipate heat for the voltage-drop-free lamp tube body 8.

[0026] The working principle of the utility model is:

[0027] When using the voltage-drop-free lamp tube for PWM dimming, the staff first places the device in a suitable position, and installs the lamp holder 1 in the device in a fixed position through the provided mounting hole 4 or adhesive 3, and then installs the light strip with PWM dimming in the voltage-drop-free lamp tube body 8, and then connects the first connecting head 11 with the first mounting head 5 through the cooperation of the positioning groove 9 and the positioning block 10, and then installs the voltage-drop-free lamp tube body 8 on the bottom surface of the lamp holder 1 through the provided clamping block 17 and the clamping groove 16 with the cooperation of the spring 15 and the stopper 13, and finally the staff depresses the push block 14 to move the clamping block 17, so that the voltage-drop-free lamp tube body 8 can be removed.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A voltage drop-free lamp for PWM dimming, characterized in that: The invention comprises a lamp holder (1), the bottom surface of which is fixedly connected with a first mounting head (5) and a second mounting head (7), a voltage-drop-free lamp tube body (8) is provided below the lamp holder (1), the left and right ends of the voltage-drop-free lamp tube body (8) are fixedly connected with a first connecting head (11) and a second connecting head (12), a right side surface of the second connecting head (12) is provided with a slot (16), an inner wall of the second mounting head (7) is fixedly connected with a spring (15), a left end of the spring (15) is fixedly connected with a stopper (13), a left side surface of the stopper (13) is fixedly connected with a stopper (17), the slot (16) is engaged with the stopper (17), and a push block (14) is fixedly connected to the bottom surface of the stopper (13).

2. The voltage drop-free lamp for PWM dimming according to claim 1, characterized in that: The inner wall of the first mounting head (5) is provided with a positioning groove (9), the outer surface of the first connecting head (11) is fixedly connected with a positioning block (10), and the positioning groove (9) is adapted to the positioning block (10).

3. The voltage drop-free lamp for PWM dimming according to claim 1, characterized in that: The outer surface of the no-pressure-drop lamp tube body (8) is provided with a plurality of ventilation openings (20), and a filter screen (21) is installed inside each ventilation opening (20).

4. The voltage drop-free lamp for PWM dimming according to claim 1, characterized in that: The inner wall of the second mounting head (7) is provided with two slide grooves (18), the outer surface of the stopper (13) is fixedly connected with two slide blocks (19), and each of the slide grooves (18) is adapted to fit with the slide block (19).

5. The voltage drop-free lamp for PWM dimming according to claim 1, characterized in that: Two placement grooves (6) are provided on the upper surface of the lamp holder (1), and adhesive glue (3) is pasted inside each of the placement grooves (6).

6. The voltage drop-free lamp for PWM dimming according to claim 1, characterized in that: Heat dissipation windows (2) are provided on the front side of the lamp stand (1) and the back side of the lamp stand (1), and a plurality of mounting holes (4) are provided on the upper surface of the lamp stand (1).

Images