LED tube lamp base

Abstract

The present application discloses an LED tube lamp base, comprising a base (1) and a hollow conductive needle (2) provided in the base (1) for connecting an external power source, the base (1) comprising a first member (11), a second member (12) and a positioning unit (13), a first rotating member (111) is provided on the first member (11) and a second rotating member (121) is provided on the second member (12), the first rotating member (111) and the second rotating member (121) are aligned with each other, the positioning unit comprises a first positioning unit (131) provided on the first member (11) and a second positioning unit (132) provided on the second member (12), and the first positioning unit (131) and the second positioning unit (132) cooperate to fix the relative positions of the first member (11) and the second member (12).

Description

[Technical field]

[0001] This application relates to the field of LED lighting devices, and in particular to tube lamp bases. [Background technology]

[0002] LED lighting has been widely adopted due to its advantages such as energy saving and long life. Among them, LED lamps, commonly known as straight tube lamps, generally include a lamp tube, a lamp plate with a light source installed inside the lamp tube, and bases installed on both ends of the lamp tube, a power source is installed inside the base, and the light source and the power source are electrically connected via the lamp plate. Here, the light source is a number of straight LED lamps arranged on the lamp plate, and the multiple straight LED lamps are arranged sequentially in the longitudinal direction of the lamp tube.

[0003] A LED tube lamp in the prior art usually includes a lamp tube, a base, a lamp plate, a hollow conductive needle, and a power source, in which the base is fixed to the lamp tube, the power source is provided in the base and electrically connected to the lamp plate, the hollow conductive needle is fixed to the end surface of the base and is used to connect with an external lamp socket, and the lamp plate is glued and fixed to the inner peripheral surface of the lamp tube. The positions of the lamp plate and the hollow conductive needle are relatively fixed, and when the base is fixed to the socket, the light output direction of the tube lamp is also fixed. Any deviation in the position of the socket, the base, or the lamp plate will affect the light output direction of the tube lamp. The light output direction of the LED tube lamp in the prior art cannot be adjusted, so the application range is small.

[0004] Current technology has introduced rotatable bases to adjust the light output direction. However, the rotatable bases in the prior art are generally located in the longitudinal direction of the lamp, and the base is divided into two parts, one part of which is fixed to the lamp tube and the other part is rotatable. When this type of base requires coating, if the base is not coated and only the lamp part is coated, gaps are more likely to be present when the base and the lamp tube are connected, compared to LED straight tube lamps with the entire lamp coating, so there is a possibility that the lamp tube has poor moisture resistance. If the base and the lamp tube are coated together, the rotatable part of the base is also coated, and the base cannot be rotated, so this rotatable base has a problem of not being able to coat the entire lamp.

[0005] In view of the above, in view of the shortcomings and defects in the LED tube lamp base of the prior art, how to design the LED tube lamp base and solve the problems of poor overall coating and moisture resistance of the LED tube lamp have become technical challenges that those skilled in the art need to solve as soon as possible. Summary of the Invention

[0006] A number of embodiments related to the present application are described in summary. However, the term present application is used only to describe some embodiments (whether claimed or not) disclosed herein, and is not a complete description of all possible embodiments. Some embodiments described above as various features or aspects of the present invention may be integrated in different ways to form an LED lamp or a part thereof.

[0007] SUMMARY OF THE DISCLOSURE The embodiments of the present application provide a novel LED tube lamp base and various aspects of the features to solve the above-mentioned problems.

[0008] This application discloses a LED tube lamp base, the base is provided with a hollow conductive needle for connecting an external power supply, the base includes a first member provided with a first rotating member, a second member provided with a second rotating member, and a positioning unit, the first rotating member is aligned with the second rotating member, at least a part of the first rotating member is provided inside the second rotating member, the first rotating member provided inside the second rotating member can rotate relative to the second rotating member, the first rotating member is engaged with the second rotating member and moves on the circumferential side of the second rotating member, the positioning unit includes the first positioning unit provided on the first member and the second positioning unit provided on the second member, the first positioning unit and the second positioning unit cooperate to fix the relative positions of the first member and the second member. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing an LED lamp base according to an embodiment of the present application. [Diagram 2] 1 is a schematic diagram showing the configuration of an LED lamp base according to an embodiment of the present application. [Diagram 3] 1 is a cross-sectional view showing a cross-sectional structure of an LED lamp base according to an embodiment of the present application. [Figure 4] FIG. 2 is a perspective view showing a second member structure of an LED lamp base according to an embodiment of the present application. [Diagram 5] FIG. 2 is a cross-sectional view showing a second member structure of an LED lamp base according to an embodiment of the present application. [Figure 6] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. [Figure 7] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. [Figure 8] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. [Figure 9] 1 is a cross-sectional view showing a cross-sectional structure of an LED lamp base according to an embodiment of the present application. [Figure 10]1 is a perspective view showing an LED lamp base according to an embodiment of the present application. [Figure 11] FIG. 2 is a perspective view showing a control member of an auto-lock unit of an LED lamp base according to one embodiment of the present application. [Figure 12] 1 is a cross-sectional view showing a cross-sectional structure of an LED lamp base according to an embodiment of the present application. [Figure 13] FIG. 2 is a perspective view showing a second member structure of an LED lamp base according to an embodiment of the present application. [Figure 14] FIG. 2 is a perspective view showing a first member structure and an auto-lock unit of an LED lamp base according to one embodiment of the present application. [Figure 15] FIG. 2 is a perspective view showing a first member structure and an auto-lock unit of an LED lamp base according to one embodiment of the present application. [Figure 16] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. [Figure 17] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. [Figure 18] FIG. 2 is a perspective view showing a first member structure of an LED lamp base according to one embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In order to make the above-mentioned objects, features and advantages of the present application clearer and easier to understand, the following detailed description of specific embodiments of the present application will be given with reference to the drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application may be realized in many different forms and is not limited to the embodiments described below. On the contrary, the purpose of providing these embodiments is to provide a more complete understanding of the disclosure of the present application. The following directions, such as "axial direction", "upward", "downward", etc., are intended to more clearly indicate the structural positional relationship and are not limitations on the present invention. In the present application, the above-mentioned "vertical", "horizontal", and "parallel" are defined to include ±10% based on the standard definition. For example, vertical usually refers to an angle of 90 degrees relative to a reference line, but in the present application, vertical refers to a range of 80 degrees to 100 degrees.

[0011] 1 and 2, in one embodiment, the present application provides an LED tube lamp base assembly, which includes a base 1 and a conductive needle 2. The conductive needle 2 is provided on the base 1 for connecting an external power source.

[0012] The base 1 (main body of the base) may be all metal, and an insulating device (not shown) may be provided inside the metal base 1 to avoid electrical connection between the metal base 1 and a power source. To achieve the insulating effect, the base 1 (main body of the base) may also use insulating materials such as plastic.

[0013] As shown in FIG. 1 to FIG. 3, the base 1 includes a first member 11 and a second member 12. The first member 11 includes a first rotating member 111. There may be one or more first rotating members 111. The second member 12 includes a second rotating member 121. The first rotating member 111 contacts the second rotating member 121, and the first member 11 and the second member 12 are connected via the first rotating member 111 and the second rotating member 121, thereby realizing a rotatable connection between the first member 11 and the second member 12. Specifically, at least a part of the first rotating member 111 is provided inside the second rotating member 121 (the side closer to the lamp tube), and the first rotating member 111 provided inside the second rotating member 121 is rotatable with respect to the second rotating member 121, thereby realizing a relative rotation between the first member 11 and the second member 12. Furthermore, the first rotating member 111 is provided to be engaged with the second rotating member 121 and can move around the circumferential side of the second rotating member 121. The first rotating member 111 can be arranged by being bonded to the second rotating member 121, which can make the rotation smoother.

[0014] As shown in Figs. 3, 5 to 7, this embodiment includes two first rotating members 111. Furthermore, the first rotating member 111 may include a first fixed unit 1111. The first fixed unit 1111 rotates in cooperation with the second rotating member 121. Furthermore, the first rotating member 111 may include a first stopper member 1112. The first stopper member 1112 is fitted into the second rotating member 121 to connect the first rotating member 111 and the second rotating member 121, making them less likely to fall off or separate.

[0015] In this embodiment, the first rotating member 111 protrudes in a direction away from the conductive needle 2, and a first fixing unit 1111 is formed. The second rotating member 121 of the second member 12 may be hole-shaped or approximately hole-shaped. Furthermore, the second rotating member 121 can be formed with a circular hole or an approximately circular hole. The distance from the first fixing unit 1111 to the center of the second rotating member 121 is the same or approximately the same as the radius of the second rotating member 121. During assembly, the first fixing unit 1111 contacts the second rotating member 121, fixing the positions of the first fixing unit 1111 and the second rotating member 121, and achieving the effect of allowing relative rotation.

[0016] In some embodiments, the first fixing unit 1111 and the second rotating member 121 may contact in the form of point contact. In some embodiments, the first fixing unit 1111 and the second rotating member 121 may contact in the form of line contact to increase the contact between the first fixing unit 1111 and the second rotating member 121, thereby increasing the stability between the first fixing unit 1111 and the second rotating member 121. In some embodiments, the first fixing unit 1111 and the second rotating member 121 may contact in the form of surface contact to further increase the contact between the first fixing unit 1111 and the second rotating member 121, thereby increasing the stability between the first fixing unit 1111 and the second rotating member 121.

[0017] In this embodiment, the first fixing unit 1111 and the second rotating member 121 can contact each other in the form of surface contact. Specifically, the first fixing unit 1111 includes a first surface 11111 and a second surface 11112. The first surface 11111 is a surface far from the axis of the base 1, and the second surface 11112 is a surface close to the axis of the base 1. The first surface 11111 fits into and contacts the second rotating member 121, and has a contact surface. Specifically, in order to increase the stability between the first fixing unit 1111 and the second rotating member 121, the first surface 11111 may be an arc surface that is the same or approximately the same as the radian of the arc of the second rotating member 121, or may be an arc surface that increases the contact area between the first fixing unit 1111 and the second rotating member 121.

[0018] Furthermore, when viewed from the cross-sectional direction of the base 1, the distance from the first surface 11111 of the first fixing unit 1111 of the first member 11 to the axis of the base 1 is the same or approximately the same as the radius of the circle of the second rotating member 121, so that the first rotating member 111 is engaged with the second rotating member 121, and since the first fixing unit 1111 and the second rotating member 121 have a contact surface, the first member 11 and the second member 12 are capable of relative rotation.

[0019] As shown in FIGS. 3 to 7, the first rotating member 111 further includes a first stopper member 1112. The first stopper member 1112 cooperates with a second rotating structure 121 for fixing the first member 11 and the second member 12 relatively to each other and preventing the first member 11 and the second member 12 from falling off or being separated. Specifically, after the first member 11 and the second member 12 are assembled, the first stopper member 1112 is provided on the inside of the second member 12, which is on the side away from the conductive needles 2 with respect to the second rotating member 121. The first stopper member 1112 may be an extension of the edge of the first fixing unit 1111. Furthermore, the first stopper member 1112 may be a portion of the edge of the first fixing unit 1111 extending in a direction away from the second rotating member 121 from the center of the circle. Specifically, after the first member 11 and the second member 12 are assembled, the first stopper member 1112 is engaged with the inside of the second rotating structure 121, and the first stopper structure 1112 engages with the second rotating structure 121, connecting the first rotating member 111 and the second rotating member 121 and making them less likely to fall off or separate.

[0020] Furthermore, an edge of the first stopper member 1112 may have a first fitting portion 11121. The first fitting portion 11121 acts to make it easier for the first member 11 to engage with the second member 12 when the first member 11 and the second member 12 are assembled. The first fitting portion 11121 may have a chamfered surface or a circular arc surface, or any other structure of a shape that is easy to snap.

[0021] As shown in FIG. 3 to FIG. 8, any one of the first stopper members 1112 among the plurality of first stopper members 1112 includes a first stopper unit 11122. The second member 12 can include two second stopper members 122. The action of the first stopper unit 11122 and the second stopper member 122 of the second member 12 regulates the relative rotation between the first member 11 and the second member 12, preventing excessive rotation. Specifically, the first stopper unit 11122 rotates between the two second stopper members 122 when the first member 11 and the second member 12 rotate relatively. If the rotation angle is less than 160°, the adjustment of the output light angle is relatively limited; if the rotation angle is greater than 200°, the manufacturing cost is wasted. Preferably, due to the action of the first stopper unit 11122 and the second stopper member 121 of the second member 12, the relative rotation range between the first member 11 and the second member 12 is 160° to 200°; more preferably, the relative rotation range between the first member 11 and the second member 12 is 170° to 190°.

[0022] Furthermore, the first stopper unit 11122 may be an extending portion of the first stopper member 1112. The second member 12 includes two second stopper members 122, that is, the rotation range of the first member 11 is limited between the two second stopper members 122. The first stopper unit 11122 is aligned with the second stopper member 122, forms a stopper on the first stopper unit 11122, and functions as a stopper to prevent the first member 11 from rotating excessively with respect to the second member 12 and causing the lead wire to be wound or torn. Specifically, the two second stopper members 122 are provided on the side where the second member 12 is away from the conductive needle 2. The two second stopper members 122 are arranged opposite to each other. When the first rotating member 111 rotates with respect to the second rotating member 121, the moving range of the first stopper unit 11122 is on an arc between the two second stopper members 121, and the center of the arc is the same as or substantially the same as the center of the second rotating member 121. Furthermore, the arc from the contact point between one side of the first stopper unit 11122 and the second stopper member 122 to the contact point between the other side of the first stopper unit 11122 and the other second stopper member 122 is the maximum moving path of the first stopper unit 11122. When the first stopper unit 11122 passes through the maximum moving path, one side of the first stopper unit 11122 can rotate 160° to 200°; preferably, it can rotate 170° to 190°. Suppose the length in the direction away from the center in the cross-sectional direction of the base 1 of the first stopper unit 11122 is a, the length of the first stopper member 1112 in the cross-sectional direction of the base 1 is b, and the shortest distance from the second stopper member 122 to the second rotating member 121 is c. Then a + b > c, and the second stopper member 122 and the first stopper unit 11122 can act on each other to exert a barrier effect. At the same time, by setting b < c, relative rotation can be prevented from occurring due to the restricting action of the second stopper member 122 when the first member 11 and the second member 12 rotate relative to each other. That is, the relationship among a, b, and c always satisfies b < c < a + b. The first stopper unit 11122 is parallel or substantially parallel to the end face of the base 1.With the center point of the end face of the base 1 as the circle center, the circumferential length of the first stopper unit 11122 and the circumferential length of the first stopper member 1112 are the same or different. Preferably, the circumferential length of the first stopper unit 11122 is smaller than the circumferential length of the first stopper member 1112, so that the first stopper unit 11122 functions as a stopper while saving material costs.

[0023] 3 to 8, the second rotating member 121 of the second member 12 further includes a fitting portion 1211. The first stopper unit 1122 can be engaged with the fitting portion 1211 so that the first member 11 is engaged with the second member 12.

[0024] The shape of the fitting portion 1211 is the same or approximately the same as the shape of the first stopper unit 11122. Therefore, during assembly, the first stopper unit 11122 can be engaged with the fitting portion 1211. The edge of the first stopper unit 11122 may include a second fitting portion 11123 that allows the first stopper unit 11122 to be easily engaged with the fitting portion 1211. In one embodiment, the fitting portion 1211 may further have a protrusion 12111. The restricting action of the protrusion 12111 ensures that the first stopper unit 11122 is unlikely to come out of the fitting portion 1211 when it moves. In another embodiment, the protrusion 12111 is located on the first stopper unit 11122, and the restricting action of the protrusion 12111 ensures that the first stopper unit 11122 is unlikely to come out of the fitting portion 1211 when it rotates and moves.

[0025] In one embodiment, the length of the engaging portion 1211 in the direction away from the center of the circle is smaller than the length of the first stopper unit 11122 in the direction away from the center of the circle, thereby ensuring that the first stopper unit 11122 is unlikely to slip out of the engaging portion 1211 and fall off when it moves.

[0026] As shown in FIG. 3 to FIG. 9, the first member 11 further includes a one end cover 112. The second member 12 includes a first stopper 123. The relative positions of the first member 11 and the second member 12 are fixed by the engagement between the end cap 112 and the first stopper 123. Specifically, when the first member 11 and the second member 12 are connected, the end cap 112 of the first member 11 is provided on the first stopper 123 of the second member 12, and the position of the end cap 112 is controlled by the engagement between the end cap 112 and the first stopper 123 so that the end cap 112 is not pushed excessively into the second member 12. In one embodiment, the second member 12 can include four first stoppers 123 to maintain an equilibrium state when the cover plate 312 is brought into contact with the first stoppers 123, and the intervals between two adjacent first stoppers 123 are the same or approximately the same.

[0027] As shown in FIG. 3 to FIG. 8, the base 1 may further include a positioning unit 13. The positioning unit 13 includes a first positioning unit 131 and a second positioning unit 132. The first positioning unit 131 and the second positioning unit 132 cooperate to position the first member 11 and the second member 12. Specifically, after the first member 11 and the second member 12 are assembled, the first positioning unit 131 and the second positioning unit 132 may be engaged to couple and fit together. The first positioning unit 131 is located on the first member 31, and the second positioning unit 132 is located on the second member 12. At this time, the second positioning unit 132 may engage with the first positioning unit 131 to play a role in positioning. In another embodiment, the first positioning unit 131 may be provided on the second member 12, and the second positioning unit 132 may be provided on the first member 11. At this time, the first positioning unit 131 may engage with the second positioning unit 132 to play a role in positioning. By engaging the first positioning unit 131 with the second positioning unit 132, the first member 11 and the second member 12 can be fixed relative to each other, and changes in the relative positions of the first member 11 and the second member 12 due to external force can be prevented, which affects the emission direction of light.

[0028] As shown in FIGS. 4, 6 to 9, the first positioning unit 131 includes several continuous or discontinuous positioning positions, and when the second positioning unit 132 engages with the positioning positions, the first positioning unit 131 regulates the relative rotation between the first member 11 and the second member 12. The several positioning positions are uniformly distributed along the circumferential direction of the second member 12, and the rotation angle between adjacent positioning positions is 5 to 15°. That is, when the first positioning unit 131 rotates from a position where it engages with one positioning position to a position where it engages with the other adjacent positioning position, the rotation angle of the first member 11 with respect to the second member 12 is 5 to 15°. Preferably, the rotation angle between the adjacent positioning positions is 7 to 12°. In this embodiment, the second positioning unit 132 includes a plurality of teeth 1311, and the positioning positions (groove portions 1312 are formed between the adjacent teeth 1311) are formed between the adjacent teeth 1311, and the second positioning unit 132 includes a positioning protrusion 1321 that engages with the positioning position (groove portion 1312) to complete positioning. The positioning protrusion 1321 can be provided on the first stopper 123. The above positioning method has a simple structure, is convenient to assemble, and has high positioning reliability.

[0029] As shown in FIGS. 5 and 6, the second member 12 may further include a fixing portion 125. Due to the action of the fixing portion 125, the power plate is locked in the groove of the fixing portion 125, and displacement is unlikely to occur. Specifically, the second member 12 may include two or more fixing portions 125. The second member 12 may further include a second stopper 124. Due to the action of the second stopper 124, the power plate is not excessively inserted into the base. Specifically, the second member 12 may include two or more second stoppers 124. The number of the second stoppers 124 may be the same as or different from the number of the fixing portions 325. When the first rotating member 111 rotates, the first stopper member does not contact the power plate, and the rotation range is not limited by the power plate, so the distance from one end of the second stopper 124 to the second rotating member 121 is greater than the protrusion thickness of the first rotating member 111.

[0030] 5, the second structure 12 may also include one or more supports 126. The support 126 can increase the strength of the base.

[0031] As shown in FIG. 9, the first member 11 is provided at the end of the second member 12, and the first member 11 does not exceed the range defined by the second member 12 in the longitudinal direction of the base 1. Therefore, when the LED tube lamp is covered with a coating over the entire lamp, the protective film completely covers the radial outside of the base 1 and covers the connection point between the base 1 and the lamp tube, thereby improving the moisture-proof performance. In some embodiments, the protective film covers only the radial outside of the base 1. In some embodiments, the protective film covers the radial outside of the base 1 and a part of the end face of the base 1, but does not cover the first member 11. In some embodiments, the protective film covers the radial outside of the base 1, a part of the end face of the base 1, and a part of the end face of the first member 11, and in this case, when the first member 11 rotates relative to the second member 12, it is only necessary to overcome a small resistance to the first member 11 caused by the protective film.

[0032] In one embodiment, the base 1 is suitable for a LED tube lamp (not shown). A power supply (at least a part of the power supply is projected in the radial direction of the LED tube lamp onto the base 1) is provided within the base 1, and the power supply and the light source are electrically connected via the lamp plate, and preferably, the length of the power supply in the longitudinal direction of the lamp base in this embodiment is not greater than that within the base 1. The power supply may be a single whole unit (e.g., all the power supply modules are concentrated in one part and provided within that one base 1). Alternatively, the power supply may be divided into two parts, called two parts (i.e., all the power supply modules are respectively provided in the two parts), and the two parts may be respectively provided in the bases 1 at both ends of the lamp. In one embodiment, the power supply includes a power supply circuit board carrying a power supply module, and the power supply and the conductive needles 2 are connected by a conductor wire.

[0033] In one embodiment (not shown), the first positioning unit may be located around the second rotating member of the second member, and located on the near / far side of the lamp tube direction. The second positioning unit may be disposed on the first rotating member. The first positioning unit and the second positioning unit cooperate to provide a positioning effect.

[0034] 10 to 18, in one embodiment, the second member 12 of the base 1 can include a plurality of second positioning portions 123. The base 1 can include an auto-lock unit 14 that connects the first member 11 and the second member 12. The auto-lock unit 14 comes into contact with the second positioning portions 123, and due to the interaction between the second positioning portions 123 and the auto-lock unit 14, the first member 11 of the base 1 can be rotated a certain angle relative to the second member 12, and then positioned and fixed, and rotation and misalignment are unlikely to occur.

[0035] The auto-lock unit 14 may include a control member 141, a positioning member 142, and an elastic member 143. The control member 141 is connected to the positioning member 142. A part of the control member 141 is exposed to the outside of the base 1 and can be used for operation. The positioning member 142 is connected to the elastic member 143. The movement of the control member 141 moves the positioning member 142, and the positioning member 142 moves. The positioning member 142 is in contact with the elastic member 143, and after the external force is eliminated, the positioning member 142 can be reset by the elastic action of the elastic member 143. Furthermore, a part of the control member 141 can be connected to the positioning member 142 through the first member 11. The elastic member 143 can be fitted to one end of the positioning member 142 so that the connection is tighter and less likely to fall off.

[0036] The second positioning portion 123 engages with the positioning member 141 to perform a positioning action. The positioning member 142 can have a first state and a second state according to the action of the control member 141. Specifically, when the positioning member 142 is in the first state, the control member 141 receives a force and moves with the positioning member 142. When the positioning member 142 is in the second state, the control member 141 does not receive a force, the positioning member 142 does not move with the control member 141, and the positioning member 142 bounces back due to the elastic action of the elastic member 143. When the positioning member 142 is in the second state, the control member 141 fits into the positioning member 142. When the positioning member 142 is in the first state, the positioning member 142 can move between the second positioning portions 1233 and can straddle one or more second positioning portions 123, which has the effect of rotating the ferrule 1. When the positioning member 142 is in the second state, the positioning member 142 engages with the second positioning portion 123 (specifically, the rotation can be restricted by snapping, fitting, etc.), thereby exerting the effect of restricting the rotation of the base 1. Specifically, the second positioning portion 123 can be a recess that can accommodate at least a part of the positioning member 142, fixes the positioning member 142, and functions as a stopper. In other embodiments, the second positioning portion 123 can be a protrusion, and the positioning member 142 can have a groove. The groove can accommodate the second positioning portion 123 or at least a part of the second positioning portion 123, thereby fulfilling the role of fixing and limiting.

[0037] As shown in Figures 13 to 17, the rotation method by fitting the auto-lock unit 14 with the second positioning portion 123 has a better moisture-proofing effect because, due to the toothless structure of the third rotating member 115, when the first member 11 and the second member 12 are assembled, the contact surface between the third rotating member 115 of the first member 11 and the second structure 12 is increased and the gap between the first member 11 and the second member 12 is reduced.

[0038] As shown in Figs. 11 and 16, the control member 141 may further include an operating member 1413. The first member 11 may have a first accommodation space 1134 for accommodating the operating member 1413. The accommodation space of the first accommodation space 1134 is larger than the size of the operating member 1413 so that the operating member 1413 can move in the first accommodation space 1134. Furthermore, the shape size of the first accommodation space 1134 is larger than the size of the operating member 1413 in the movement direction of the operating member 1413 so that the operating member 1413 can move in the movement direction. After the base 1 is assembled as a whole, the operating member 1413 is engaged into the first accommodation space 1134. The end face of the operating member 1413 is exposed to the outside of the base 1 and is in the same plane or a different plane from the face of the end cover 112 of the first member 11 away from the lamp tube side. When the operation member 1413 and the surface of the end cap 112 of the first member 11 far from the lamp tube are on the same plane, the total length of the lamp head is not increased by the operation member 1413, and no inconvenience is caused by the increase in the length of the lamp head when the lamp tube is attached. When the operation member 1413 is in a protruding state with respect to the surface of the end cap 112 of the first member 11 far from the lamp tube, the control operation member 1413 is more convenient. When the operation member 1413 is recessed with respect to the surface of the end cap 112 of the first member 11 far from the lamp tube, it is possible to more effectively prevent the operation member 1413 from being erroneously contacted and malfunctioning, and to prevent unnecessary rotation of the base 1. The operation member 1413 may be in a protruding state or a recessed state with respect to the surface of the end cap 112 of the first member 11 far from the lamp tube. The operation member 1413 may have a rough surface having a structure for increasing resistance to easily operate the control member 141 by operating the operation member 1413.

[0039] 11 to 15, in one embodiment, the positioning member 142 moves in a direction perpendicular or substantially perpendicular to the lamp axis. That is, the moving direction is parallel or substantially parallel to the longitudinal section of the base 1. The elastic member 143 can be provided at one end opposite to the contact portion between the positioning member 142 and the second positioning portion 123. Since the size of the shape of the first housing space 1134 is larger than the size of the operating member 1413 in the moving direction of the operating member 1413, the positioning member 142 is movable in a direction perpendicular to the axial direction of the base 1 toward the axial direction of the base 1 after being subjected to the interlocking action of the control member 141.

[0040] In one embodiment (not shown), the positioning member moves in a direction parallel or approximately parallel to the lamp axis direction. That is, the moving direction is perpendicular or approximately perpendicular to the cross section of the metal. The elastic member can be fitted so that the positioning member is close to one end of the lamp tube. The size of the shape of the first housing space is larger than the size of the operating member in the moving direction of the operating member, and when the control member is pressed toward the lamp direction, the positioning member moves in conjunction with it and moves in the lamp direction accordingly. Since each second positioning portion has a gap in the direction approaching the lamp tube, the control member can be pressed by an external force and move in conjunction when the base 1 is rotated, and the positioning member can be moved within the gap of the second positioning portion close to the base direction.

[0041] As shown in Figs. 10 and 13, the first member 11 may include a plurality of first marks 116 to mark a rotation span, i.e., an angle of relative rotation of the first member 11 with respect to the second member 12. Specifically, two adjacent first marks 116 may be used to mark one unit of rotation span. The distance between the two adjacent first marks 116 is equal. Furthermore, the circular angles of the two adjacent first marks 116 with respect to the ferrule 1 are the same or approximately the same as the circular angles of the two adjacent second positioning portions 123. The second member 12 may include a second mark 127. The first mark 116 cooperates with the second mark 127 to indicate the rotation of the first member 11 with respect to the second member 12. When one end of the base 1 is rotated by a certain unit span, the other end of the base 1 is rotated by the same unit span, and in order to ensure that both ends of the base 1 rotate at the same angle, the hollow conductive needles 2 on both ends of the base 1 are held in the same manner by the marking function of the first mark 116 and the second mark 127, so that the installation of the LED lamp is performed smoothly. Specifically, when the LED lamp is in a horizontal state, the point marking the horizontal in the first mark 116 is aligned with the second mark 127, and the distance between two adjacent first marks 116 is equal, so that one first mark 116 and one second mark 127 are always aligned among the multiple first marks 116 every time one unit of rotation span is rotated. The first markers 116 may be Arabic numeral markers, Roman letter markers, English letter markers, dot markers, etc.

[0042] As shown in Figs. 10, 12, and 13, when viewed from the longitudinal cross section of the base 1, the center of the base 1 is the center of a circle, and the arc on which any two adjacent second positioning parts 123 are located is equal to the central angle of the circle, and the central angle is 20° to 40°. That is, the base 1 rotates 20° to 40° after rotating the adjacent first mark 116 once. Preferably, the base 1 rotates 25° to 35° after rotating one unit. More preferably, the base 1 rotates 30° after rotating the adjacent unit. Specifically, the distances between any two adjacent second positioning parts 123 are the same or approximately the same, and the sizes of the other second positioning parts 123 are the same or approximately the same except for at least the two outermost second positioning parts 123, and the angles by which the base 1 rotates after the positioning member 142 rotates any adjacent unit are the same or approximately the same. The two outermost second positioning parts 123 are the same size as or different from the other second positioning parts 123. Furthermore, except for the two outermost second positioning parts 123, any of the second positioning parts 123 is used for positioning so that the distance between one side of the positioning structure 142 and the same side of the adjacent second positioning parts 123 is the same or approximately the same. When viewed from the longitudinal cross-sectional direction of the base 1, the center of the base 1 is taken as the center of a circle, and the distance from the center point of the base 1 to an arbitrary second positioning part 123 defining one side of the positioning structure 142 is taken as the radius, the central angle of the arc formed by the arbitrary second positioning part 123 to define one side of the positioning structure 142 and a point on the same side of the adjacent second positioning part 123 is 20° to 40°. That is, the base 1 rotates the adjacent first mark 116 once, and then rotates 20° to 40°. Preferably, the base 1 rotates 25° to 35° after rotating one unit, and more preferably, the base 1 rotates 30° after rotating an adjacent unit.

[0043] As shown in FIGS. 13, 14, 15, 17, and 18, the first member 11 may include a third accommodating space 1132 for accommodating the positioning unit 1421 of the positioning member 142. The first member 11 may include a third rotating member 115. The third rotating member 115 engages with the second positioning portion 123 of the second member 12. Specifically, the third rotating member 115 is provided inside the second positioning portion 123 to rotate. The positioning member 142 may further include a positioning unit 1421. The positioning unit 1421 may include a first positioning portion 14211. After assembly, at least a part of the positioning unit 1421 is exposed to the third rotating member 115 without the action of an external force, and the exposed part is the first positioning portion 14211. The first positioning portion 14211 and the second positioning portion 123 act to provide a positioning effect. When subjected to an external force, the positioning member 142 moves, and the first positioning portion 14211 is disposed inside the third rotating member 115 and is not exposed to the third member 115. In other words, because the first positioning portion 14211 is hidden by the third rotating member 115, the third rotating member 115 is not hindered from rotating, and the base 1 can be rotated.

[0044] The length L1 of the first positioning portion 14211 is smaller than the absolute value of the difference between the distance r1 from the edge side of the base 1 of the second positioning portion 123 to the center of the base 1 and the radius r2 of the end cap 112, i.e., L1≦|r2-r1|, and the inside of the first positioning portion 14211 engages with the second structure 12 to obtain a rotational positioning effect.

[0045] The material of the first positioning part 14211 may be a strong material such as plastic. If the control member 141 of the auto-lock unit 14 is not adjusted, when the ferrule 1 is forcibly rotated, bending stress occurs at the contact part between the first positioning part 14211 and the second positioning part 123. A pressure stress occurs on the side where the first positioning part 14211 and the second positioning part 123 contact, and a tensile stress occurs on the other side of the first positioning part 14211. Since the first positioning part 14211 has a certain strength, the first positioning part 14211 is not easily bent.

[0046] The magnitude of the critical force that bends and deforms the first positioning portion 14211 depends on the material, length, and cross-sectional shape dimensions of the first positioning portion 1421 and the constraint state of the head of the first positioning portion 14211, that is, P=π 2 EI / L 2 It is related to.

[0047] When the material, cross-sectional shape dimensions, and restraint conditions of the end of the first positioning part 14211 are all constant, the magnitude of the critical force of the first positioning part 14211 is related to the length. Also, according to the lever principle, the longer the length of the first positioning part 14211 is, the more likely it is to bend and break under the same external force. Therefore, in order to maintain the stability of the first positioning part 14211, the length L1 of the first positioning part 14211 is less than half the total length of the positioning unit 1421, that is, L1≦L2 / 2. Preferably, L1≦L2 / 3. More preferably, L1≦L2 / 4.

[0048] When the material, length, and end constraint of the first positioning portion 14211 are all constant, the magnitude of the critical force of the first positioning portion 14211 is related to the cross-sectional shape dimension. The larger the cross section S1 of the first positioning portion 14211 and the larger the moment of inertia, the better the stability of the first positioning portion 14211. Therefore, in order to maintain the stability of the first positioning portion 14211, the cross section S1 of the first positioning portion 14211 is more than half the longitudinal section S2 of the first positioning portion 14211, that is, S1≧S2 / 2. Preferably, S1≧S2. More preferably, S1≧2S2.

[0049] As shown in Figs. 12 to 15, 17, and 18, the first member 11 may include a second housing space 1131 for housing the elastic member 143. The shape of the second housing space 1131 corresponds to the shape of the elastic member 143. The second housing space 1131 may be groove-shaped, and the elastic member 143 may be housed at least partially in the second housing space 1131. The second housing space 1131 may be hole-shaped, and at least a part of the elastic member 143 is housed in the second housing space 1131. The elastic member 143 may be partially located outside the second housing space 1131 and partially disposed in the second housing space 1131, or may be completely disposed in the second housing space 1131. When the second housing space 1131 is groove-shaped, the opening distance in the vertical cross section of the base 1 is smaller than the diameter of the elastic member 143 so that the elastic member 143 does not slip out of the second housing space 1131.

[0050] As shown in Figs. 10, 11, 14-16, the control member 141 may include a first connecting member 1411, the positioning member 142 may include a second connecting member 1422, and the first member 11 may include a fourth housing space 1133. The fourth housing space 1133 may be an opening that allows the first connecting member 1411 to pass through the first member 11 and connect with the second connecting member 1422. The control member 141 and the positioning member 142 are connected by the connection between the first connecting member 1411 and the second connecting member 1422. Furthermore, the first connecting member 1411 may protrude in a direction away from the end cap 112 of the base 1. The second connecting member 1422 may further include a second connecting unit 142211. The second connecting unit 14221 may be an opening. At the time of connection, the first connection member 1411 is inserted into the second connection unit 1421 of the second connection member 1422, and the control member 141 and the positioning member 142 are connected to each other.

[0051] The first connecting member 1411 may include an elastic arm 14111. The elastic action of the elastic arm 14111 makes the connection between the control member 141 and the positioning member 142 more convenient and firm. Specifically, there is a gap between the elastic arms 14111, and the elastic arms 14111 approach each other due to the pressing force during assembly and engage with the positioning member 142. After that, the external force is removed and the elastic arm is reset due to the elastic action, so that the control member is not easily dropped off from the positioning member 142.

[0052] An end of the first connecting member 1411 may further include a fixing member 1412. The fixing action of the fixing member 1412 makes it difficult for the control member 141 to slip from the positioning member 142. Furthermore, an edge of the fixing member 1412 may have a third fitting portion 14121. The action of the third fitting portion 14121 makes it easier for the control member 141 to be engaged with the positioning member 142 when the control member 141 and the positioning member 142 are assembled. The third fitting portion 14121 may have a chamfered surface or a circular arc surface, or any other structure of a shape that is easy to snap.

[0053] In one embodiment (not shown), the first connecting member may have a connecting unit, and the connecting unit may further have an opening. The second connecting member may protrude in a direction away from the lamp tube. During connection, the second connecting member is inserted into the connecting unit of the first connecting member to connect the control member to the positioning member. The tip of the second connecting member may further include a fixing member that makes the positioning member less likely to slip from the control member due to the fixing action of the fixing member. Furthermore, the edge of the fixing member may have a third fitting portion. Due to the action of the third fitting portion, the positioning member can be more easily engaged with the control member when the control member and the positioning member are assembled. The third fitting portion may have a chamfered surface or a circular arc surface, or any other form of structure that is easy to snap.

[0054] 15, the positioning member 142 may further include a third connecting member 1423. The diameter of the rear end of the third connecting member 1423 may be smaller than the inner diameter of the portion close to the second connecting member 1422 in order to facilitate fitting of the elastic member 143.

[0055] As shown in Figs. 10, 15 to 18, the first member 11 may further include a cutoff part 114, which may be made of a non-metallic material such as plastic. The cutoff part 114 is located on the side of the first member 11 close to the lamp tube. Specifically, the cutoff part 114 is located between the holes of the two hollow conductive needles 2. The height of the cutoff part 114 in the lamp axial direction is equal to or less than the thickness of the third rotating member 115 in the lamp axial direction. The cutoff part 114 extends toward the center of the base 1 in the direction perpendicular to the lamp axis. The cutoff part 114 is made of a non-metallic material, is not conductive, has a certain width and thickness, is protruding with respect to the end cap 112, has a height difference with the end cap 112, and is located between the holes of the two hollow conductive needles 2, so that the creepage distance between the two hollow conductive needles 2 can be increased and a short circuit caused by insufficient creepage distance can be prevented. At the same time, the structural strength of the holes of the hollow conductive needles 2 and the first member 11 as a whole can be enhanced.

[0056] As described above, the LED lamp base of the present application is realized in each embodiment.In addition, in each embodiment, for the same LED lamp, the following may be included: "the base may be a plastic base", "the base may be an all-metal base, or an insulating member may be provided inside", "the first positioning unit includes a plurality of continuous or discontinuous positioning positions", "the plurality of positioning positions are uniformly distributed along the circumferential direction of the second member", "the second member includes a plurality of first stopper portions", "the second member includes a fixing portion", "the second structure may include one or more supporting portions", "the first fixing unit and the second rotating member may be in point contact with each other", "the first fixing unit and the second rotating member may be in point contact with each other", "the first fixing unit and the second rotating member may be in point contact with each other", "the first fixing unit and the second rotating member may be in point contact with each other", "the first fixing unit and the second rotating member may be in point contact with each other", "the second ... "The first fixing unit and the second rotating member can be in contact in the form of line contact", "The first fixing means and the second rotating member can be in contact in the form of surface contact", "The distance from the first surface of the first fixing means of the first member to the axis of its mouth is the same or approximately the same as the circular radius of the second rotating member", "The edge of the first stopper member can have a first fitting portion", "The first stopper unit is aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit is parallel or approximately parallel to the end face of the mouth", "The second stopper unit of the second member can have a first fitting portion", "The first stopper unit is aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit is parallel or approximately parallel to the end face of the mouth", "The second stopper unit of the second member can have a first fitting portion", "The first stopper unit can be aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit can be aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit can be aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit can be aligned with the second stopper member to form a stop for the first positioning unit", "The first stopper unit can be aligned with the second stopper member to form a stop for the second ... "The rotating member further includes a fitting portion," "The shape of the fitting portion is the same as or approximately the same as the shape of the first stopper unit," "The first stopper unit can engage with the fitting portion," "The edge of the first stopper unit includes a second fitting portion," "The first member includes an end cover," "The second member includes a first stopper member," "The relative positions of the first member and the second member are fixed by engagement between the end cap and the first stopper," "The nozzle may further include a positioning means," "The positioning means includes a first positioning unit and a second positioning unit," Features such as "the first member and the second member are positioned by engaging the first member with the second member," "the first member is installed at the end of the second member," "the first member does not exceed the range defined by the second member in the longitudinal direction of the base," "the protective film covers the radial outside of the base and part of the end face of the base, but does not cover the first member," and "the protective film covers the radial outside of the base, part of the end face of the base, and part of the end face of the first member" may actually be applied in one or more ways so as to implement only one feature or to implement multiple features simultaneously.

[0057] For example, in the design of the base, the base may be a plastic base, may be all metal, may have an insulating member inside, and the dimensions of the base may be the same or different.

[0058] For example, in the design of the base, the base may be a plastic base, may be all metal, may have an insulating member inside, and the dimensions of the base may be the same or different.

[0059] For example, the first positioning unit includes several consecutive or discontinuous positioning positions.

[0060] For example, the first fixing means and the second rotating member may be in point contact.

[0061] For example, the first fixing means and the second rotating member may be in line contact.

[0062] For example, the first fixing means and the second rotating member can be in surface contact with each other.

[0063] For example, the distance from the first surface of the first fixing means of the first member to the axis of the mouthpiece is the same as or approximately the same as the radius of the circle of the second rotating member.

[0064] For example, the first stopper member may have a first fitting portion on an edge thereof, and the first stopper unit may be aligned with the second stopper member to form a stopper in the first positioning unit.

[0065] For example, the first stopper unit is parallel or approximately parallel to the end face of the base.

[0066] For example, the second rotating member of the second member further includes a fitting portion having the same or substantially the same shape as the first stopper unit.

[0067] For example, the first stopper unit can be engaged with the mating portion, and an edge of the first stopper unit can include the second mating portion.

[0068] For example, the first member includes an end cover and the second member includes a first stopper portion, and the relative positions of the first member and the second member are fixed by engagement between the end cover and the first stopper portion.

[0069] For example, the nozzle also includes a first positioning unit, and the positioning unit includes the first positioning unit and a second positioning unit, and the first positioning unit and the second positioning unit cooperate with each other to realize the positioning of the first member and the second member.

[0070] For example, the first member is provided at an end of the second member that does not exceed the range defined by the second member in the longitudinal direction of the base.

[0071] For example, the protective film covers the radial outside of the base and part of the end face of the base, but does not cover the first member. The protective film covers the radial outside of the base, part of the end face of the base, and part of the end face of the first member.

[0072] In other words, the above features can be used in any combination to improve LED tube lamp bases.

[0073] It should be understood that the above description is for illustrative purposes, not for limitation. Many embodiments and many applications other than the examples provided will become apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present specification should not be determined with reference to the above description, but with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For comprehensive purposes, the disclosures, including all articles and referenced patent applications and publications, are incorporated herein by reference. Any omission of subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of the content of that subject matter, and should not be construed as an indication that the inventors have not considered that subject matter to be part of the disclosed inventive subject matter. [Explanation of symbols]

[0074] 1...base, 2...conductive needle, 11...first member, 12...second member, 111...first rotating member, 121...second rotating member, 1111...first fixed unit, 11112...second surface, 1112...first stopper member, 122...second stopper member, 11122...first stopper unit, 1211...fitting portion, 112...end cap, 123...first stopper, 13...positioning unit, 131...first positioning unit, 132...second positioning unit

Claims

12. The base according to claim 11, wherein the first stopper unit is an extension of the first stopper member.

13. 2. The nozzle according to claim 1, further comprising a first positioning unit located on the first member and a second positioning unit located on the second member, wherein the second positioning unit engages with the first positioning unit after the first member and the second member are assembled.

14. The base according to claim 13, wherein the first positioning unit includes a plurality of positioning positions, and the second positioning unit engages with the positioning positions.

15. The base according to claim 14, wherein the first positioning unit includes a plurality of consecutive positioning positions.

17. 2. The base according to claim 1, wherein the front first member is provided at an end of the second member, and the first member does not exceed a range defined by the second member in the longitudinal direction of the base.

18. The base according to claim 1 , wherein the protective film covers only the radially outer side of the base.

19. The base according to claim 1 , wherein the protective film covers a radial outside of the base and a part of an end face of the base, but does not cover the first member.

20. The base according to claim 1 , further comprising an auto-lock unit connecting the first member and the second member.

21. 21. The base according to claim 20, wherein the second member includes a plurality of second positioning portions, and the auto-lock unit contacts the second positioning portions.

22. The nozzle according to claim 20, characterized in that the locking unit includes a control member, a positioning member, and an elastic member, the control member being connected to the positioning member, a portion of the control member being exposed to the outside of the nozzle, and the positioning member being connected to the elastic member.

23. 23. The base according to claim 22, wherein a portion of the control member passes through the first member and is connected to the positioning member, and the elastic member is fitted to one end of the positioning member.

24. The nozzle described in claim 22, characterized in that, depending on the action of the control member, the positioning member can have a first state and a second state, and when the positioning member is in the first state, the control member is subjected to a force and moves with the positioning member; and when the positioning member is in the second state, the control member is not subjected to a force, the positioning member is not moved with the control member, and the positioning member bounces back due to the elastic action of the elastic member.

25. 23. The base according to claim 22, wherein when the positioning member is in the first state, the positioning member can move between the second positioning portions and span a plurality of the second positioning portions.

26. The base according to claim 22, wherein the second positioning portion is a recess capable of accommodating at least a portion of the positioning member.

27. 23. The base according to claim 22, wherein the first member includes a third rotating member provided inside the second positioning portion.

28. 28. The base according to claim 27, wherein at least a portion of the positioning means is exposed to the third rotating member without the action of an external force.

29. 28. The base according to claim 27, wherein when an external force is applied, the positioning member moves, and the first positioning portion is disposed inside the third rotating member and is not exposed to the third member.

30. The length L of the first positioning portion １ ≦ distance r from the edge side of the base to the center of the base １ and the end cap radius r ２ The absolute value of the difference between １ ≦|r ２ -r １ The base according to claim 27, characterized in that |

31. 23. The nozzle according to claim 22, wherein the first member includes a second receiving space, the second receiving space being groove-shaped, and at least a portion of the elastic member is received in the second receiving space.

32. 23. The nozzle according to claim 22, wherein the first member includes a second receiving space, the second receiving space being hole-shaped, and at least a portion of the elastic member is received in the second receiving space.

33. 23. The base according to claim 22, wherein the first member includes a blocking portion made of a non-metallic material, the blocking portion being located on a side of the first member closer to the lamp tube.

34. 34. The base of claim 33, wherein the interrupting portion is located between two holes of the two hollow conductive needles, and the interrupting portion extends toward the center of the base in a direction perpendicular to the vertical lamp axis.

35. 2. The base according to claim 1, wherein the base is made of a plastic material.

36. 2. The base according to claim 1, wherein the base is made of a metal material and has an insulating device disposed therein.

37. 38. An LED tube lamp comprising the base according to claim 1.

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