Lamp holder and LED lamp tube

Abstract

The lamp holder comprises a fixed seat and a rotating seat which can relatively rotate around an axis and can relatively move in the axial direction, the fixed seat is used for being connected with a tube body of the lamp tube, the rotating seat is provided with a contact pin used for being connected with an external power source, and an angle adjusting mechanism is arranged between the fixed seat and the rotating seat. The angle adjusting mechanism comprises a plurality of clamping teeth arranged on one of the fixed base and the rotating base in the circumferential direction and a positioning piece arranged on the other one of the fixed base and the rotating base, gear grooves matched with the positioning piece are formed between the adjacent clamping teeth, when the angle is adjusted, the positioning piece retreats from one gear groove, and after the fixed base and the rotating base rotate by a certain angle, the positioning piece retreats from the gear groove. And the other gear groove is further provided with a limiting piece which is matched with the clamping teeth on the edge to limit the rotation amplitude of the fixed seat and the rotation seat, and the limiting piece is matched with the clamping teeth on the edge to limit the rotation amplitude so as to prevent the electric wire from being twisted.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a lamp holder and an LED lamp tube. Background Art

[0002] LED lamps that use LED light sources are gradually replacing traditional fluorescent lamps. Currently, the tubes of LED lamps are still using the traditional fluorescent lamp tube structure. LED lamps include a tube body and lamp holders at both ends of the tube body. When LED lamps are used, the entire tube does not emit light, but forms a certain irradiation angle. The traditional lamp holders at both ends of the tube are fixed and cannot be adjusted. As a result, existing LED lamps can only be set to a fixed irradiation angle when they leave the factory, which is limited.

[0003] To address this problem, the industry has developed an LED lamp with an adjustable illumination angle. The illumination angle of the LED lamp with this structure is adjusted by setting a friction surface to achieve stepless adjustment of the angle. However, setting a friction surface to adjust the illumination angle has problems such as low connection strength and easy loosening. Utility Model Content

[0004] Based on this, it is necessary to provide a lamp holder and an LED lamp tube to address the above technical problems.

[0005] The lamp holder of the present application includes a fixed seat and a rotating seat which can rotate relative to each other around an axis and can move relative to each other axially, the fixed seat is used to connect the tube body of the lamp tube, the rotating seat is provided with a pin for connecting to an external power supply, an angle adjustment mechanism is provided between the fixed seat and the rotating seat, the angle adjustment mechanism includes a plurality of circumferentially arranged latching teeth provided on one of the fixed seat and the rotating seat and a positioning piece provided on the other, a gear groove matched with the positioning piece is formed between adjacent latching teeth, when adjusting the angle, the positioning piece withdraws from one gear groove, and after the fixed seat and the rotating seat rotate a certain angle, the positioning piece enters another gear groove, the other one is also provided with a limiting piece which cooperates with the outermost latching teeth to limit the rotation range of the fixed seat and the rotating seat.

[0006] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0007] Optionally, the extension length of the limiting member is greater than the extension length of the positioning member, so that when the positioning member is separated from the gear slot, the latch tooth maintains the restriction on the limiting member.

[0008] Optionally, an anti-slip structure is provided between the fixed seat and the rotating seat to limit axial separation of the two.

[0009] Optionally, the anti-slip structure allows the maximum stroke of relative movement between the fixed seat and the rotating seat to be smaller than the stroke of the limiting member disengaging from the latching tooth.

[0010] Optionally, the anti-slip structure includes an anti-slip part connected to the rotating seat, a cross bar is provided inside the fixed seat, the cross bar is provided with a through hole for the anti-slip part to pass through, and the anti-slip part has an anti-slip portion with a diameter larger than the through hole.

[0011] Optionally, a hole column for forming the through hole is provided on the cross piece, and a connecting column connected to the anti-slip component is provided on the rotating seat, and the connecting column and the hole column are sleeved with each other.

[0012] Optionally, an elastic member is provided between the hole column and the connecting column, and the elastic member abuts against the anti-slip portion and a limiting step on the inner side surface of the hole column.

[0013] Optionally, the fixed seat includes a first cylinder wall, the first cylinder wall has a reduced diameter section, the rotating seat includes an end wall and a second cylinder wall rotatably matched with the reduced diameter section, the insertion pin is arranged on the end wall, the locking tooth is arranged on the inner surface of the second cylinder wall, and the positioning member and the limiting member are protruded on the reduced diameter section.

[0014] Optionally, a mark indicating a relative rotation angle between the fixing seat and the rotating seat is provided on the surface of the lamp holder.

[0015] Optionally, it includes a tube body, and a lamp holder as described in the present application for sealing the tube body, the end of the tube body is socketed with the fixing seat, the tube body is provided with a light-emitting component and an LED driving power supply, and the driving power supply is electrically connected to the pin through an electric wire.

[0016] The lamp holder and LED lamp tube of the present application have at least the following technical effects:

[0017] When adjusting the relative angle between the fixed seat and the rotating seat, the present application first separates the two along the axial direction to disengage the positioning member from the gear slot, and after the two are rotated to a certain angle, the positioning member is inserted into another gear slot. The pin is connected to the LED driving power supply through the wire, and the limiting member limits the rotation range of the fixed seat and the rotating seat by cooperating with the edge teeth to prevent the wires from being twisted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an LED lamp tube in an embodiment of the present application;

[0019] Figure 2 for Figure 1 Assembly diagram of

[0020] Figure 3 for Figure 2 Assembly diagram of the middle fixing base and LED driver power supply;

[0021] Figure 4 A cross-sectional view of a lamp holder in one embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the assembly of a lamp holder in one embodiment of the present application;

[0023] Figure 6 for Figure 5 Schematic diagram from another angle;

[0024] Figure 7 This is a schematic diagram of the structure of a lamp holder rotating seat in one embodiment of the present application;

[0025] Figure 8 This is a schematic diagram of the assembly of an LED lamp tube in one embodiment of the present application;

[0026] The reference numerals in the figures are described as follows:

[0027] 100, tube body; 110, light emitting assembly; 111, light source board; 112, reflector; 120, LED driving power supply; 121, first adjustment switch; 122, second adjustment switch; 130, first dial button; 140, second dial button;

[0028] 200, fixing seat; 201, wire hole; 202, positioning member; 203, limiting member; 210, first cylinder wall; 211, first mark; 220, horizontal bar; 221, hole column; 222, limiting step; 223, abutting step; 230, reduced diameter section;

[0029] 300, rotating seat; 301, inserting pin; 302, latching tooth; 303, gear slot; 310, second cylinder wall; 311, second mark; 320, end wall; 321, connecting column;

[0030] 400, elastic member; 410, first end; 420, second end; 500, anti-slip member; 510, enlarged diameter end; 520, connecting end; 610, first clamping structure; 620, second clamping structure. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, the terms "comprises" and "has" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include other units not explicitly listed or inherent to these products or devices.

[0036] In the present application, the terms "corresponding", "corresponding", "matching", "adaptable", such as "B corresponding to A", "B corresponding to A", "A corresponds to B", or "B corresponds to A", indicate that B has a corresponding relationship with A in shape, position or function, and B can be determined according to A. Determining B according to A does not mean determining B only according to A, but B can also be determined according to A and / or other information.

[0037] In the present application, terms such as "center", "length", "width", "thickness", "top", "bottom", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "axial", and "circumferential" indicate directions or positional relationships based on the directions or positional relationships shown in certain drawings, or based on the spatial posture of the product in normal use. Of course, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific direction, a specific structure and operation, and therefore cannot be understood as a limitation on the present application.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, so that the internal connection of two elements or the interaction relationship between two elements can be achieved. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] See also Figure 1 and Figure 2 An embodiment of the present application provides an LED lamp tube, which includes a tube body 100 and a lamp holder provided in each embodiment of the present application for sealing the tube body 100. A light-emitting component 110 and an LED driving power supply 120 are provided in the tube body 100.

[0040] The cross-section of the tube body 100 can be, for example, an elliptical shape. The light-emitting component 110 includes a light source board 111 and a reflective board 112 disposed on the light-emitting surface of the light source board 111. The light source board 111 includes a light bar substrate and LED lamp beads disposed thereon. The reflective board 112 is used to increase the luminous flux and light effect at the same power.

[0041] The LED driving power supply 120 includes a driving circuit board and circuit elements arranged on the driving circuit board. The circuit elements include a first regulating switch 121 and a second regulating switch 122, which can be used to adjust the power and color temperature respectively. For example, the first regulating switch 121 is a three-speed regulating switch, which can adjust the power of 11w, 13w, and 16w. The second regulating switch 122 is a five-speed regulating switch, which can adjust 5 color temperatures (3000K, 3500K, 4000K, 5000K, and 5700K). Through holes corresponding to the installation positions of the first regulating switch 121 and the second regulating switch 122 are provided on the surface of the tube body 100, which are used to install the first dial button 130 and the second dial button 140 respectively.

[0042] See also Figure 2 to Figure 6 One embodiment of the present application provides a lamp holder, which includes a fixed seat 200 and a rotating seat 300 that can rotate relative to each other around an axis and can move relative to each other in the axial direction, and an elastic member 400 that acts on the fixed seat 200 and the rotating seat 300 so that the two have a tendency to approach each other in the axial direction. The fixed seat 200 is used to connect the tube body 100 of the lamp tube, and the end of the tube body is used to be sleeved with the fixed seat 200. The rotating seat 300 is provided with a pin 301 for connecting to an external power supply. The LED driving power supply is electrically connected through the wire pin, and an angle adjustment mechanism is provided between the fixed seat 200 and the rotating seat 300.

[0043] The angle adjustment mechanism includes a plurality of circumferentially arranged latch teeth 302 provided on one of the fixed seat 200 and the rotating seat 300 and a positioning piece 202 provided on the other, and a gear groove 303 cooperating with the positioning piece 202 is formed between adjacent latch teeth 302. The other is also provided with a limiting piece 203 cooperating with the edgemost latch teeth 302 to limit the rotation range of the fixed seat 200 and the rotating seat 300.

[0044] In this embodiment, when adjusting the relative angle between the fixed seat 200 and the rotating seat 300, the two are first separated axially to disengage the positioning member 202 from the gear slot 303, and the positioning member exits from one gear slot. After the fixed seat and the rotating seat rotate a certain angle, the positioning member enters the other gear slot. After the elastic member 400 is added, the positioning member can automatically enter the gear slot under the action of the elastic member 400.

[0045] The pin 301 is connected to the LED driving power supply through the wire. The fixed base 200 is provided with a wire hole 201 for the power line to pass through. The limiting member 203 limits the rotation range of the fixed base 200 and the rotating base 300 by cooperating with the edge teeth 302 to prevent the wires from being entangled.

[0046] See also Figures 4 to 6 As for the specific positions of the positioning member 202 and the limiting member 203, the fixed seat 200 includes a first barrel wall 210 and a crosspiece 220, the rotating seat 300 includes a second barrel wall 310 and an end wall 320, the pin 301 is arranged on the end wall 320, and the latch 302 is arranged on the inner surface of the second barrel wall 310. The rotating seat has a connecting column 321 extending axially inward (i.e., toward the lamp tube body 100), and the crosspiece 220 is provided with a hole column 221 extending axially outward. The connecting column 321 and the hole column 221 are mutually sleeved, and an elastic member 400 is arranged between the two. The first barrel wall 210 has a reduced diameter section 230, and the second barrel wall 310 is rotatably matched with the reduced diameter section 230. The positioning member 202 and the limiting member 203 are convexly arranged on the reduced diameter section 230.

[0047] In some embodiments, the extension length of the limiting member 203 is greater than the extension length of the positioning member 202, so that when the positioning member 202 is disengaged from the gear slot 303, the latch 302 keeps restricting the limiting member 203. An anti-slip structure is provided between the fixed seat 200 and the rotating seat 300 to limit the axial separation of the two. The anti-slip structure allows the fixed seat 200 and the rotating seat 300 to move relative to each other with a maximum stroke that is less than the stroke of the limiting member 203 disengaging the latch 302.

[0048] When the rotation angle of the rotating seat 300 relative to the fixed seat 200 needs to be adjusted, the fixed seat 200 and the rotating seat 300 are firstly separated axially by moving the rotating seat 300 outward, and the positioning member 202 is disengaged from the gear slot 303. Since the maximum stroke of the anti-slip structure is smaller than the stroke of the limiting member 203 disengaging the latching teeth 302, the positioning member 202 does not affect the cooperation between the limiting member 203 and the uppermost latching teeth 302 when it is disengaged from the gear slot 303, and the rotation range of the rotating seat 300 is limited during the angle adjustment process to avoid tangling of the wires.

[0049] See also Figure 7 Furthermore, the circumferential interval arc of the limiting member 203 and the positioning member 202 is 180 degrees, the distribution area angle of the latch 302 is 180 degrees, and the circumferential arc of the limiting member 203 that can move freely when cooperating with the latch 302 on the edge is 180 degrees. Specifically, there are six latches 302 evenly arranged along the circumference, and five gear slots 303 are formed between the two. The middle gear slot 303 corresponds to a rotation angle of 0 degrees, and the others correspond to -30 degrees, -60 degrees, +30 degrees, and +60 degrees. Since the positioning member 202 and the limiting member 203 are arranged at an interval of 180 degrees, the positioning member 202 and the limiting member 203 can be simultaneously restricted by the two latches 302 on the edge, and two gears are formed accordingly, which are -90 degrees and +90 degrees respectively.

[0050] See also Figure 3 to Figure 6 , the anti-slip structure includes a limiting step 222 provided on the inner surface of the hole column 221 and an anti-slip member 500 for connecting with the connecting column 321, and the anti-slip member 500 abuts against the elastic member 400. The hole column 221 is provided on the crosspiece 220 and forms a perforation, and the anti-slip member 500 has an anti-slip portion with a diameter greater than the perforation. The anti-slip member 500 has an expanded diameter end 510 and a connecting end 520, and the connecting end 520 is used to connect with the connecting column 321. When the fixed seat 200 and the rotating seat 300 are axially separated, the expanded diameter end 510 acts as an anti-slip portion, approaches the limiting step 222 and is limited by the limiting step 222 to limit the maximum stroke allowed by the anti-slip structure. The anti-slip member 500 can be, for example, a screw, and the elastic member 400 can be, for example, a coil spring sleeved on the anti-slip member 500, and the elastic member 400 abuts against the expanded diameter end 510 and the limiting step 222 on the inner side of the hole column 221. Specifically, the elastic member 400 has a first end 410 abutting against the enlarged diameter end 510, and a second end 420 abutting against the inner side of the hole column 221. Specifically, the inner surface of the hole column 221 is provided with an abutting step 223 matched with the second end 420, and the abutting step 223 is close to the rotating seat 300 relative to the limiting step 222.

[0051] In some embodiments, the surface of the lamp holder is provided with a mark indicating the relative rotation angle of the fixed seat 200 and the rotating seat 300. Specifically, the first barrel wall 210 of the fixed seat 200 is provided with a first mark 211, and the second barrel wall 310 of the rotating seat 300 is provided with a plurality of second marks 311. When the positioning member 202 is inserted into the corresponding gear slot 303, the first mark 211 corresponds to the corresponding second mark 311, so as to synchronize the angle of the rotating seat 300 at the left and right ends of the lamp tube body 100.

[0052] See also Figure 2 and Figure 3 In some embodiments, the fixing base 200 and the driving circuit board are provided with a matching first clamping structure 610, and the fixing base 200 and the tube body 100 are provided with a matching second clamping structure 620, so as to improve the assembly efficiency. The first clamping structure 610 and the second clamping structure 620 may include matching clamping protrusions and clamping holes, for example.

[0053] When assembling the LED lamp tube of each embodiment of the present application, the following steps are included: (1) assembling the tube body 100: placing the light-emitting component 110 in the tube body 100; (2) assembling the fixed seat 200 and the rotating seat 300 of the lamp holder; (3) clamping the driving circuit board of the LED driving power supply 120 to the fixed seat 200; (4) completing the circuit connection between the pin 301, the driving circuit board, and the light-emitting component 110, clamping the fixed seat 200 to the tube body 100, and installing the first dial button 130 and the second dial button 140. (5) If the angle needs to be adjusted, the rotating seat 300 is axially separated from the fixed seat 200, and after rotating and adjusting to the corresponding gear position, the positioning member 202 is restricted by the corresponding locking teeth 302 under the action of the elastic member 400 to complete the angle adjustment.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0055] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A lamp holder, characterized in that: The invention comprises a fixed seat and a rotating seat which can rotate relative to each other around an axis and can move relative to each other axially, the fixed seat is used to connect the tube body of the lamp tube, the rotating seat is provided with a pin for connecting to an external power supply, an angle adjustment mechanism is provided between the fixed seat and the rotating seat, the angle adjustment mechanism comprises a plurality of circumferentially arranged latching teeth provided on one of the fixed seat and the rotating seat and a positioning piece provided on the other, a gear slot matched with the positioning piece is formed between adjacent latching teeth, when adjusting the angle, the positioning piece withdraws from a gear slot, and after the fixed seat and the rotating seat rotate a certain angle, the positioning piece enters another gear slot, the other one is also provided with a limiting piece which cooperates with the outermost latching teeth to limit the rotation range of the fixed seat and the rotating seat.

2. The lamp cap according to claim 1, characterized in that The extension length of the limiting member is greater than the extension length of the positioning member, so that when the positioning member is separated from the gear slot, the latch tooth keeps restricting the limiting member.

3. The lamp cap according to claim 2, characterized in that: An anti-slip structure is provided between the fixed seat and the rotating seat to limit the axial separation of the two.

4. The lamp cap according to claim 3, characterized in that The maximum stroke of relative movement of the fixing seat and the rotating seat allowed by the anti-slip structure is smaller than the stroke of the limiting member disengaging from the latching teeth.

5. The lamp cap according to claim 3, characterized in that: The anti-slip structure comprises an anti-slip part connected to the rotating seat, a cross bar is arranged inside the fixed seat, the cross bar is provided with a through hole for the anti-slip part to pass through, and the anti-slip part has an anti-slip portion with a diameter larger than the through hole.

6. The lamp cap according to claim 5, characterized in that The crossbar is provided with a hole column for forming the through hole, and the rotating seat is provided with a connecting column connected to the anti-slip component, and the connecting column and the hole column are sleeved with each other.

7. The lamp cap according to claim 6, characterized in that An elastic member is arranged between the hole column and the connecting column, and the elastic member abuts against the anti-slip portion and the limiting step on the inner side surface of the hole column.

8. The lamp cap according to claim 5, characterized in that The fixed seat includes a first cylinder wall, which has a reduced diameter section. The rotating seat includes an end wall and a second cylinder wall that rotates with the reduced diameter section. The insertion pin is arranged on the end wall, and the latch tooth is arranged on the inner surface of the second cylinder wall. The positioning member and the limiting member are convexly arranged on the reduced diameter section.

9. The lamp cap according to claim 1, characterized in that: The surface of the lamp holder is provided with a mark indicating the relative rotation angle between the fixing seat and the rotating seat.

10. An LED lamp tube, comprising a tube body, and a lamp holder as described in any one of claims 1 to 9 for sealing the tube body, wherein the end of the tube body is socketed with the fixing seat, and a light-emitting component and an LED driving power supply are arranged in the tube body, and the LED driving power supply is electrically connected to the pin through an electric wire.

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