Rotatable powered light fixture base

Abstract

This utility model discloses a rotatable power supply lamp base, including a housing, a base, a first circuit board, and a second circuit board. The housing has an insertion interface, and the base is rotatably mounted on the housing and fixedly connected to the lamp body. The first circuit board is built into the base and fixedly connected to it, and is electrically connected to the conductive wire inside the lamp body. The second circuit board is built into the housing / base and is electrically connected to the power cord. The first and second circuit boards are always in contact and electrically connected. When the base rotates relative to the housing, it causes the first circuit board to rotate relative to the second circuit board, maintaining contact and electrical connection while rotating relative to the second circuit board. Compared with the prior art, when the lamp body rotates relative to the lamp base, the power cord can conduct electricity through the first and second circuit boards to the conductive wire, thereby maintaining the stability of the entire lamp circuit.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment, and in particular to a rotatable lamp base. Background Technology

[0002] There are many types of lamps on the market, and desktop lighting lamps are frequently seen in people's lives because they can illuminate the desktop and intelligently adjust the brightness.

[0003] A typical desktop lighting fixture consists of a base, a lamp body, and a light source. The light source is mounted on the top of the lamp body, which is vertically mounted on the base.

[0004] Traditional desktop lighting fixtures, because the lamp body is fixedly connected to the base, do not involve the technical issue of how the internal wires rotate to supply power; while recent desktop lighting fixtures, because the lamp body is only adjustable relative to the base, also do not involve the technical issue of how the internal wires rotate to supply power.

[0005] The newly released desktop lighting lamps have lamp bodies that can rotate relative to the base for adjustment. Therefore, how to ensure that the internal wires of the lamp body continue to supply power as the lamp body rotates has become a technical problem that urgently needs to be solved.

[0006] Therefore, there is an urgent need for a rotatable lamp base to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this invention is to provide a rotatable lamp base.

[0008] To achieve the above objectives, the rotatable power supply lamp base of this utility model includes a housing, a base, a first circuit board, and a second circuit board. The housing has a plug interface for plugging and unplugging the power cord. The base is rotatably mounted on the housing and is fixedly connected to the lamp body. The first circuit board is built into the base and fixedly connected to it, and is electrically connected to the conductive wire inside the lamp body. The second circuit board is built into the housing / base and is electrically connected to the power cord. The first and second circuit boards are always in contact and electrically connected. When the base rotates relative to the housing, it causes the first circuit board to rotate relative to the second circuit board. While rotating relative to the second circuit board, the first circuit board remains in contact with the second circuit board and is electrically connected.

[0009] Compared to existing technologies, this method utilizes the fixed connection between the lamp body and the base. When the lamp body is manually rotated, the base rotates along with it, which in turn causes the first circuit board to rotate. Therefore, the first circuit board rotates relative to the second circuit board. Because the first and second circuit boards maintain constant contact and electrical conductivity, the first circuit board remains in contact with the second circuit board while rotating relative to it, ensuring electrical continuity. Thus, when the lamp body rotates relative to the lamp base, the power cord can conduct electricity through the first and second circuit boards to the conductive wires, thereby maintaining the stability of the entire lamp's circuitry.

[0010] Preferably, one of the first circuit board and the second circuit board has an annular conductive area, and the other of the first circuit board and the second circuit board has a conductive terminal in contact with the conductive area; when the first circuit board rotates relative to the second circuit board, the conductive area rotates relative to the conductive terminal.

[0011] Preferably, the conductive area is a conductive copper foil; the conductive terminal is elastic and constantly in contact with the conductive area.

[0012] Preferably, the interior of the base is provided from top to bottom with a first receiving cavity for placing a first circuit board, a second receiving cavity for placing a second circuit board, and a plug-in channel. The first receiving cavity extends upward through the upper surface of the base, and the plug-in channel extends downward through the bottom surface of the base.

[0013] Preferably, a conductive component for electrical conduction is provided between the first circuit board and the second circuit board, with one end of the conductive component in contact with the first circuit board and the other end of the conductive component in rotational contact with the second circuit board.

[0014] Preferably, both the first circuit board and the second circuit board are provided with conductive areas that are in contact with the conductive components, and the conductive areas are conductive copper foil.

[0015] Preferably, the conductive component includes a conductive self-lubricating part, a conductive elastic part, a conductive wire, and a conductive sheet. The conductive self-lubricating part and the second circuit board are in rotatable contact. The conductive sheet is in contact with the first circuit board. The conductive elastic part is connected between the conductive self-lubricating part and the conductive sheet, and its elasticity constantly causes the conductive self-lubricating part to be in tight contact with the second circuit board, and also constantly causes the conductive sheet to be in tight contact with the first circuit board. The conductive wire is connected between the conductive self-lubricating part and the conductive sheet.

[0016] Preferably, the base includes an outer base and an inner base built into the outer base. The outer base has a receiving cavity for the second circuit board and the inner base to be inserted sequentially, and a plug-in channel for the power cord to be plugged in. The receiving cavity extends upward through the upper surface of the outer base, and the plug-in channel extends downward through the bottom surface of the outer base. The inner base has a mounting through hole for the installation of conductive components.

[0017] Preferably, the plug is located at the bottom of the housing, and the bottom surface of the housing is recessed upward to form a receiving space for accommodating the power cord. The top wall of the receiving space also extends downward with positioning ribs for positioning the power cord. There are two positioning ribs, and the power cord is accommodated between the two positioning ribs.

[0018] Preferably, the seat body includes an upper seat portion and a lower seat portion, wherein the outer diameter of the upper seat portion is different from the outer diameter of the lower seat portion so that a seat shoulder is formed at the junction between the two.

[0019] Preferably, a transition body is provided between the base and the housing, the base is rotatably mounted on the transition body, and the transition body is fixedly connected to the housing.

[0020] Preferably, the adapter includes a main body, which is a hollow columnar structure. The inner sidewall of the main body extends inward to form a support platform, and the outer sidewall of the main body extends outward to form a mounting platform. The support platform is used to support the base and is rotatably connected to the base. The mounting platform is used to attach to the shell.

[0021] Preferably, the rotatable power supply lamp base of this utility model further includes a screw cap, the housing is provided with an insertion hole for inserting an adapter, the adapter passes through the insertion hole and overlaps the housing, and the screw cap passes through the insertion hole and is fixedly connected between the adapter and the housing.

[0022] Preferably, a first planar bearing is also sleeved between the base and the adapter; the rotatable power supply lamp base of this utility model also includes a connecting seat, which is fixedly connected to the base and rotates in conjunction with the base; a second planar bearing is also sleeved between the connecting seat and the adapter. Attached Figure Description

[0023] Figure 1 This is a perspective view of the rotatable power supply lamp base of this utility model applied to a dual-purpose lighting and ambient lighting lamp.

[0024] Figure 2 yes Figure 1 A three-dimensional view from another perspective after the dual-purpose lighting and ambient light is plugged in.

[0025] Figure 3 This is a cross-sectional view of the rotatable power supply lamp base of this utility model.

[0026] Figure 4 This is a cross-sectional view of the rotatable power supply lamp base of this utility model after being cut along another orthogonal section.

[0027] Figure 5 yes Figure 3 An enlarged diagram of point A in the diagram.

[0028] Figure 6This is a perspective view of the second circuit board of the rotatable power supply lamp base of this utility model.

[0029] Figure 7 This is a bottom perspective view of the first circuit board of the rotatable power supply lamp base of this utility model.

[0030] Figure 8 This is a top perspective view of the first circuit board of the rotatable power supply lamp base of this utility model.

[0031] Figure 9 This is an explosion diagram of the rotatable power supply lamp base of this utility model after assembly A, the shell, and the screw cap are blown open.

[0032] Figure 10 yes Figure 9 An explosion diagram showing the explosion of all parts of assembly A after they burst open.

[0033] Figure 11 This is a top-view perspective view of the housing of the rotatable power supply lamp base of this utility model.

[0034] Figure 12 This is a perspective view of the adapter of the rotatable power supply lamp base of this utility model from a bottom angle.

[0035] Figure 13 This is a cross-sectional view of the rotatable power supply lamp base according to the second embodiment of this utility model.

[0036] Figure 14 This is a perspective view of the base of the rotatable power supply lamp holder, the first circuit board, the second circuit board, and the conductive components after they are installed, according to the second embodiment of this utility model.

[0037] Figure 15 It is along Figure 14 The sectional view after cutting along the section line HH.

[0038] Figure 16 It is along Figure 14 The sectional view after cutting along section line II.

[0039] Figure 17 This is a 3D diagram of a conductive component.

[0040] Figure 18 yes Figure 14 An explosion diagram.

[0041] Figure 19 This is a reverse view of the first circuit board of the rotatable power supply lamp base according to the second embodiment of this utility model.

[0042] Figure 20 It is a three-dimensional view of the inner seat from an upward perspective. Detailed Implementation

[0043] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0044] Please see Figures 1 to 2 This demonstrates the application of the rotatable power-powered lamp base 10 of this utility model to a dual-purpose lighting and ambient lighting lamp 100. Of course, in other embodiments, it can also be applied to desktop lighting lamps or floor-standing lighting lamps. Therefore, the rotatable power-powered lamp base 10 of this utility model can be applied to a variety of lamps and is not limited thereto.

[0045] Please continue reading. Figures 1 to 2 The dual-purpose lighting and ambient lighting lamp 100 includes a lamp body 20, a light source 30, and a rotatable power-supply lamp base 10 of this invention. The lamp body 20 is vertically mounted on the lamp base 10, and the light source 30 is mounted on the lamp body 20. Specifically, in this embodiment, the lamp body 20 includes a light-transmitting main body 201, a sliding member (not shown in the figure), and an adjusting arm 202. The sliding member is slidably mounted on the side wall of the light-transmitting main body 201 along the Y-axis; the adjusting arm 202 is mounted on the sliding member; the sliding member also has a horizontally arranged R-axis, and the adjusting arm 202 can rotate around the R-axis while also sliding relative to the sliding member; the light source 30 is located at the end of the adjusting arm 202, and the adjusting arm 202 has a horizontally arranged O-axis, and the light source 30 can rotate around the O-axis. Specifically, the light emission direction of the light source 30 is always orthogonal to the O-axis. Of course, in other embodiments, the light emission direction of the light source 30 is always parallel to the O-axis, so it is not limited thereto. Preferably, in this embodiment, the light-transmitting body 201 is detachably and rotatably mounted on the lamp base 1. By rotating the light-transmitting body 201 on the lamp base 10, an additional rotational dimension is added to the adjustment direction of the light source 30, making the adjustment range of the light source 30 wider and the adjustment methods more numerous, providing users with a more comprehensive range of use and increasing practicality.

[0046] Please see Figures 3 to 8The rotatable power supply lamp base 10 of this utility model includes a housing 1, a base 2, a first circuit board 3, and a second circuit board 4. The bottom of the housing 1 has a plug-in interface 13 for plugging and unplugging the power cord 40. Of course, in other embodiments, the plug-in interface 13 can be located on the side wall or top of the housing 1, so the position of the plug-in interface 13 is not limited thereto. The base 2 is rotatably mounted on the housing 1, and the base 1 is fixedly connected to the lamp body 20. Therefore, when the user manually rotates the lamp body 20, the base 2 will rotate relative to the housing 1. For example, in this embodiment, the base 2 is partially built into the housing 1 and partially exposed, and the exposed part of the base 2 is fixedly connected to the lamp body 20. Of course, in other embodiments, the base 2 can also be completely concealed within the housing 1 or completely exposed, so it is not limited thereto. The first circuit board 3 is built into the base 2 and fixedly connected to the base 2, and the first circuit board 3 is electrically connected to the conductive wire 50 inside the lamp body 20. The second circuit board 4 is built into the base 2. Of course, in other embodiments, the second circuit board 4 is built into the housing 1, so it is not limited thereto. The second circuit board 4 is electrically connected to the power line 40.

[0047] The first circuit board 3 and the second circuit board 4 are always in contact and electrically connected. When the base 2 rotates relative to the housing 1, it causes the first circuit board 3 to rotate relative to the second circuit board 4. While rotating relative to the second circuit board 4, the first circuit board 3 also maintains contact with the second circuit board 4 and is electrically connected.

[0048] Compared to existing technologies, by using the fixed connection between the lamp body 20 and the base 2, when the lamp body 20 is manually rotated, the base 2 rotates along with it, which in turn causes the first circuit board 3 to rotate. Meanwhile, the second circuit board 4 remains stationary relative to the housing 1. Therefore, the first circuit board 3 rotates relative to the second circuit board 4. Because the first circuit board 3 and the second circuit board 4 are in constant contact and electrically connected, the first circuit board 3 maintains contact with the second circuit board 4 while rotating relative to it, thus ensuring electrical continuity. Therefore, when the lamp body 20 rotates relative to the lamp base 10, the power cord 40 can conduct electricity through the first circuit board 3 and the second circuit board 4 to the conductive wire 50, thereby maintaining the stability of the entire lamp 100's circuit.

[0049] Specifically, please refer to Figures 3 to 8 The first circuit board 3 has a conductive port 34 soldered on it for the conductive wire 50 to be inserted. The conductive port 34 is used to realize the electrical connection between the first circuit board 3 and the conductive wire 50, but it is not limited to this. The second circuit board 4 has a DC female connector 43 soldered on it. The DC female connector 43 is directly opposite the plug interface 13. After the power wire 40 is plugged into the plug interface 13, it is electrically connected to the DC female connector 43, thereby realizing the electrical connection between the second circuit board 4 and the power wire 40, but it is not limited to this.

[0050] Please see Figure 3 , Figure 5 and Figure 10 Specifically, in order to achieve a fixed connection between the base 2 and the lamp body 20 of the lamp, the lamp body 20 is sleeved on the base 2, the side wall of the base 2 has a threaded hole 21, the lamp body 20 has a connection hole 203 that is directly opposite to the threaded hole 21, and the lamp body 20 is fixed to the base 2 by a threaded fastener and threaded connection to the threaded hole 21.

[0051] Please see Figure 10 Preferably, the outer side wall of the base 2 has a guide positioning groove 22, and the inner side wall of the lamp body 20 has a guide positioning protrusion (not shown in the figure) that cooperates with the guide positioning groove 22. The cooperation between the guide positioning groove 22 and the guide positioning protrusion provides guidance for the installation process of the lamp body 20 and the base 2. Of course, in other embodiments, the lamp body 20 may have a guide positioning groove 22, and the base 2 may have a guide positioning protrusion that cooperates with the guide positioning groove 22, achieving the same effect; therefore, this is not a limitation.

[0052] Please see Figure 6 The second circuit board 4 has an annular conductive area, and the first circuit board 3 has conductive terminals that contact the conductive area. When the first circuit board 3 rotates relative to the second circuit board 4, the conductive area rotates relative to the conductive terminals. Of course, in other embodiments, the conductive area is located on the first circuit board 3 and the conductive terminals are located on the second circuit board 4, which also achieves contact-type electrical conduction between the first circuit board 3 and the second circuit board 4, so it is not limited to this.

[0053] Specifically, please refer to Figure 6 The conductive region includes a positive conductive region 41 and a negative conductive region 42, which are concentric ring structures. Specifically, the positive conductive region 41 is a conductive copper foil, and the negative conductive region 42 is a conductive copper foil, but this is not a limitation.

[0054] Please see Figures 7 to 8 Specifically, the conductive terminals include a positive conductive terminal 31 and a negative conductive terminal 32. The positive conductive terminal 31 is in contact with the positive conductive region 41, and the negative conductive terminal 32 is in contact with the negative conductive region 42. Preferably, the conductive terminals are elastic and remain in constant contact with the conductive regions, thereby maintaining electrical continuity between the first circuit board 3 and the second circuit board 4 when the first circuit board 3 rotates relative to the second circuit board 4.

[0055] Please see Figure 5 , Figure 7 and Figure 8 The first circuit board 3 is also provided with through holes 33 for the conductive wire 50 to pass through. That is, after the conductive wire 50 comes out of the conductive port 34, it passes through two through holes 33 in succession. This prevents the conductive wire 50 from being pulled out of the conductive port 34 when the light source 30 is adjusted, thus avoiding power failure.

[0056] Please see Figure 5 and Figure 10 The base 2, from top to bottom, is provided with a first receiving cavity 23 for placing a first circuit board 3, a second receiving cavity 24 for placing a second circuit board 4, and a plug-in channel 25 for accommodating a DC female connector 43. Specifically, the first receiving cavity 23 extends upward through the upper surface of the base 2, and the plug-in channel 25 extends downward through the bottom surface of the base 2. Specifically, the inner diameter of the first receiving cavity 23 is larger than the inner diameter of the second receiving cavity 24, and the inner diameter of the second receiving cavity 24 is larger than the inner diameter of the plug-in channel 25. It is understood that a first step 26 is formed at the junction of the first receiving cavity 23 and the second receiving cavity 24, and a second step 27 is formed at the junction of the second receiving cavity 24 and the plug-in channel 25. Therefore, the assembly sequence of the first circuit board 3 and the second circuit board 4 is as follows: first, the second circuit board 4 is inserted into the upper opening of the base 2 until it abuts against the second step 27; then, the first circuit board 3 is inserted into the upper opening of the base 2 until it abuts against the first step 26. In order to fix the first circuit board 3 to the base 2, the first circuit board 3 is provided with several through holes 35, and the first step 26 is also recessed downward with several threaded holes (not shown in the figure) corresponding to the through holes 35. By simultaneously inserting several threaded parts through the through holes 35 and the threaded holes and tightening them, the first circuit board 3 is fixed to the base 2.

[0057] Understandably, the insertion interface 13 of the housing 1 is directly opposite the insertion channel 25 of the base 2. Preferably, there is a gap between the outer sidewall of the second circuit board 4 and the inner sidewall of the base 2, so that the base 2 avoids frictional contact with the second circuit board 4 when rotating. Preferably, in this embodiment, an insulating sleeve 44 is also fitted on the outer side of the DC female connector 43 to prevent leakage. Preferably, a rotating bearing 45 is also provided between the insulating sleeve 44 and the insertion channel 25. With the help of the rotating bearing 45, the DC female connector 43 is not affected when the base 2 rotates.

[0058] Please see Figures 3 to 5 The housing 1 includes an upper housing 11 and a lower housing 12, which are fixedly connected by threaded connectors. The upper housing 11 and lower housing 12 enclose a receiving cavity 14. A weight-increasing block 15 is also provided inside the housing 1, located within the receiving cavity 14. The weight-increasing block 15 increases the overall weight of the base, preventing instability. Specifically, in this embodiment, there are three weight-increasing blocks 15; however, the number of weight-increasing blocks 15 can be one, two, or four, and is not limited to this.

[0059] Please see Figures 2 to 4Specifically, the bottom surface of the lower housing 12 is recessed upwards in the middle to form a receiving space 121 for accommodating the power cord 40, and the edge of the bottom surface of the lower housing 12 is used for support on the workbench. Preferably, the edge of the bottom surface of the lower housing 12 is also provided with an anti-slip pad 122, thereby enhancing the friction of the rotatable power supply lamp base 10 of this invention and preventing it from shaking and tipping over. Preferably, the top wall of the receiving space 121 also extends downwards with positioning ribs 123 for positioning the power cord 40. There are two positioning ribs 123, and the power cord 40 is accommodated between the two positioning ribs 123. The positioning ribs 123 are used to prevent the power cord 40 from moving or wandering. Understandably, the power cord 40 is positioned by the positioning rib 123 and remains stationary relative to the housing 1. When the male connector of the power cord 40 is plugged into the DC female connector 43, it is elastically wrapped, meaning that the power cord 40 and the DC female connector 43 are relatively stationary. When the male connector cannot move, the female connector will not move either, meaning the second circuit board 4 will not move. Therefore, even though the second circuit board 4 is located inside the base 2, it cannot rotate with the rotation of the base 2.

[0060] Please see Figures 3 to 5 and Figures 9 to 10 Preferably, a transition body 5 is provided between the base 2 and the housing 1, the base 2 is rotatably mounted on the transition body 5, and the transition body 5 is fixedly connected to the housing 1.

[0061] Please see Figures 3 to 5 In order to achieve a fixed connection between the adapter 5 and the housing 1, the rotatable power supply lamp base 10 of this utility model also includes a screw cap 6. The adapter 5 is first snapped onto the housing 1, and then the screw cap 6 is tightened to fix the adapter 5 to the housing 1.

[0062] Specifically, the adapter 5 includes a main body 51, which is a hollow columnar structure, specifically a cylindrical structure, but not limited thereto. The outer wall of the main body 51 extends radially outward to form an annular mounting platform 52. Correspondingly, the middle of the housing 1 has an insertion hole 17 for inserting the adapter 5, and the inner wall of the insertion hole 17 extends radially inward to form an annular support platform 16. The mounting platform 52 overlaps the support platform 16. Preferably, when the mounting platform 52 overlaps the support platform 16, the upper surface of the mounting platform 52 is flush with the upper surface of the upper housing 11, making the assembled structure flat and aesthetically pleasing. Preferably, please refer to... Figure 11 and 12The support platform 16 of the housing 1 also has a ring of teeth 161 protruding upwards, and the bottom of the mounting platform 52 is also provided with a locking protrusion 521 that engages with the teeth 161. When the mounting platform 52 is placed on the support platform 16, the locking protrusion 521 will engage between the two teeth 161, thereby stabilizing the adapter 5 and the housing 1 and ensuring that the adapter 5 is stationary relative to the housing 1. Specifically, the main body 51 is provided with an external thread 511, the cap 6 is provided with an internal thread 61, and there is a gap between the inner sidewall of the support platform 16 and the main body 51. The gap is used for the cap 6 to be rotated and inserted, and the cap 6 is threadedly connected to the main body 51.

[0063] Please see Figures 3 to 5 In order to achieve the rotational connection between the adapter 5 and the seat 2, a first planar bearing 71 is also sleeved between the seat 2 and the adapter 5; the inner sidewall of the main body 51 extends radially inward to form a support platform 53, the support platform 53 supports the seat 2, and the first planar bearing 71 is disposed between the upper surface of the seat 2 and the support platform 53.

[0064] Specifically, the seat 2 is a multi-segment connected cylindrical structure. The seat 2 includes an upper seat 2a and a lower seat 2b. The outer diameter of the upper seat 2a is larger than the outer diameter of the lower seat 2b. A shoulder 2c is formed at the junction between the upper seat 2a and the lower seat 2b. After the lower seat 2b passes through the hollow hole 531 of the support platform 53, the shoulder 2c is mounted on the support platform 53.

[0065] Preferably, the rotatable power supply lamp base 10 of this utility model further includes a connecting seat 8, which is fixedly connected to the lower seat portion 2b. Specifically, the lower seat portion 2b is provided with an external thread 21b, and the connecting seat 8 is provided with an internal thread 81. The connecting seat 8 and the lower seat portion 2b are connected by a thread, but this is not a limitation. Specifically, the connecting seat 8 includes a threaded post portion 82 and a stop portion 83 connected below the threaded post portion 82. It is understood that the internal thread 81 is provided on the threaded post portion 82. Specifically, there is a gap between the inner sidewall of the support platform 53 and the lower seat body 2, which is used for the connecting seat 8 to be rotatably inserted.

[0066] Preferably, a second planar bearing 72 is also fitted between the connecting seat 8 and the adapter 5. The second planar bearing 72 is located between the abutment portion 83 of the connecting seat 8 and the lower surface of the support platform 53. The abutment portion 83 presses and shields the second planar bearing 72. Preferably, a gasket 73 is also provided between the second planar bearing 72 and the abutment portion 83 to reduce wear on the connecting seat 8. With the help of the first planar bearing 71 and the second planar bearing 72, it is ensured that the adapter 5 is not affected when the seat 2 and the connecting seat 8 rotate, and rotational friction is reduced.

[0067] Please see Figure 10The assembly sequence is as follows: First, install the first planar bearing 71 onto the upper surface of the support platform 53. Then, insert the lower seat portion 2b of the seat 2 through the hollow hole 531, allowing the shoulder 2c to rest on the first planar bearing 71. Turn to the other side, install the second planar bearing 72 onto the lower surface of the support platform 53, then insert the shim 73, and finally insert and tighten the connecting seat 8, thus assembling the adapter 5, connecting seat 8, and lower seat 2 into assembly A. Please refer to [link / reference]. Figure 9 Insert assembly A into insertion hole 17 of housing 1, insert screw cap 6 from below and tighten screw cap 6 to complete assembly.

[0068] Please see Figure 13 This illustration shows a rotatable power-supply lamp base 10b according to a second embodiment of the present invention. Its general structure is the same as that of the rotatable power-supply lamp base 10 of the first embodiment, the differences being the structure of the base 9, the structure of the first circuit board 3b, and the addition of a conductive structure 94 within the base 9. A detailed description follows.

[0069] Please see Figures 14 to 18 To achieve electrical conductivity between the first circuit board 3b and the second circuit board 4, a conductive component 94 is provided between them. One end of the conductive component contacts the first circuit board, and the other end makes rotatable contact with the second circuit board. Therefore, when the lamp post 20 rotates relative to the lamp base 10, that is, when the base 9 rotates relative to the housing 1, the first circuit board 3b and the conductive component 94 rotate relative to the second circuit board 4. The second circuit board remains relatively stationary, and the conductive component 94 rotates and contacts the second circuit board 4. While rotating, the conductive component 94 maintains electrical conductivity between the first circuit board 3b and the second circuit board 4.

[0070] Please see Figures 16 to 18The conductive component 94 includes a conductive self-lubricating part 941, a conductive elastic part 942, a conductive wire 943, and a conductive sheet 944. The conductive self-lubricating part 941 is in rotatable contact with the conductive area of ​​the second circuit board 4. The conductive sheet 944 is in contact with the conductive area of ​​the first circuit board 3b. The conductive elastic part 942 is connected between the conductive self-lubricating part 941 and the conductive sheet 944, and its elasticity constantly ensures that the conductive self-lubricating part 941 is in tight contact with the conductive area of ​​the second circuit board 4, and that the conductive sheet 944 is in tight contact with the conductive area of ​​the first circuit board 3b. The conductive wire 943 is connected between the conductive self-lubricating part 941 and the conductive sheet 944, and the conductive wire 943 also passes through the interior of the conductive elastic part 942. The conductive wire 943 enables electrical conduction between the conductive self-lubricating part 941 and the conductive sheet 944. Because the conductive self-lubricating part 941 has self-lubricating properties, it can reduce friction when rotating in contact with the second circuit board 4, increase the smoothness of rotation, and reduce the noise caused by friction. At the same time, due to the reduced friction, the service life of the second circuit board 4 can be extended. The conductive elastic part 942 ensures that the conductive self-lubricating part 941 maintains contact with the second circuit board 4 and the conductive sheet 944 maintains contact with the first circuit board 3b during rotation, thereby ensuring a stable and continuous output of current.

[0071] In this embodiment, the conductive self-lubricating part 941 is a conductive carbon brush, but is not limited thereto; the conductive elastic part 942 is a spring, but is not limited thereto; and the conductive sheet 944 is a copper sheet, but is not limited thereto.

[0072] Please see Figure 19 The first circuit board 3b of the second embodiment of this utility model is shown. The back of the first circuit board 3b is provided with a conductive area that contacts the conductive component 94. Specifically, the conductive area includes a first positive conductive area 33b and a first negative conductive area 34b. Specifically, both the first positive conductive area 33b and the first negative conductive area 34b are conductive copper foils. The first positive conductive area 33b and the first negative conductive area 34b are concentric annular structures. Furthermore, the front of the first circuit board 3b still has the same conductive port 34 and through hole 35 as in the first embodiment, so they will not be described again here.

[0073] It is worth noting that the structure of the second circuit board 4 remains unchanged. The second circuit board 4 still has conductive areas that contact the conductive components. Specifically, the conductive areas include a second positive conductive area 41 and a second negative conductive area 42, which are concentric ring structures. Specifically, both the second positive conductive area 41 and the second negative conductive area 42 are conductive copper foils. Specifically, a DC female connector 43 is still soldered to the bottom surface of the second circuit board 4. An insulating sleeve 44 is still fitted over the DC female connector 43, and a rotating bearing 45 is still fitted over the insulating sleeve 44, which will not be described in detail here.

[0074] Please continue reading. Figures 14 to 18 The second embodiment of the base 9 includes an outer base 91 and an inner base 92 built into the outer base 91. Specifically, the outer base 91 has a receiving cavity 911 that extends upward through the upper surface of the outer base 91, facilitating the sequential placement of the second circuit board 4 and the inner base 92 within the receiving cavity 911. In other words, the second circuit board 4 is installed within the receiving cavity 911 and located at the bottom of the inner base 92. Specifically, the inner base 92 has a mounting through hole for accommodating the conductive component 94, and the mounting through hole is a through-hole structure. Specifically, the first circuit board 3b is fixedly connected to the top of the inner base 92. It is worth noting that the mounting through hole is aligned with the conductive areas of the first circuit board 3b and the second circuit board 4, respectively. In other words, the conductive component 94 is also aligned with the conductive areas of the first circuit board 3b and the second circuit board 4 within the mounting through hole, thereby ensuring reliable contact.

[0075] Please see Figure 18 Preferably, the cavity wall of the receiving cavity 911 extends radially outward to form a positioning cavity 913, and the outer wall of the inner seat 92 also extends to provide a positioning waist 921 that matches the positioning cavity 913. During the process of pressing the inner seat 92 into the outer seat 91, the positioning of the two is achieved by the matching between the positioning waist 921 and the positioning cavity 913, and the inner seat 92 can also be kept stationary relative to the outer seat 91. In other words, the outer seat 91 and the inner seat 92 move synchronously. Of course, in other embodiments, the cavity wall of the receiving cavity 911 is provided with a positioning waist, and the outer wall of the inner seat 92 is provided with a positioning cavity, which can also achieve the positioning function during the assembly process, so it is not limited to this.

[0076] Please see Figure 15 Understandably, the outer seat 91 still has a connector channel 912 for accommodating the DC female connector 43, which extends downwards through the bottom surface of the outer seat 91. The receiving cavity 911 and the connector channel 912 are interconnected, and the inner diameter of the receiving cavity 911 is larger than the inner diameter of the connector channel 912. Understandably, the outer seat 91 includes an upper seat portion 9a and a lower seat portion 9b. The outer diameter of the upper seat portion 9a is larger than the outer diameter of the lower seat portion 9b. A shoulder 9c is formed at the junction between the upper seat portion 9a and the lower seat portion 9b. After the lower seat portion 9b passes through the hollow hole 531 of the support platform 53, the shoulder 9c is mounted on the support platform 53. The lower seat portion 9b has an external thread 91b for threaded connection with the internal thread 81 of the connecting seat 8.

[0077] Please continue reading. Figure 15 and Figure 18To achieve a fixed connection between the first circuit board 3b and the inner seat, the first circuit board 3b is provided with a first fixed connection hole 31b, and the inner seat 92 is provided with a second fixed connection hole 922 aligned with the first fixed connection hole 31b. The first fixed connection hole 31b and the second fixed connection hole 922 are threaded together by a threaded component 93. Preferably, the edge of the first circuit board 3b is provided with a positioning groove 32b, and the edge of the top surface of the inner seat 92 is provided with a positioning protrusion 923. When the first circuit board 3b is covered on the top surface of the inner seat 92, the positioning groove 32b and the positioning protrusion 923 cooperate to pre-position the circuit board 3b and prevent it from rotating. Understandably, the threaded component 93 can be screwed on after pre-positioning.

[0078] Please see Figures 18 to 20 The mounting through holes include a first mounting through hole 924 and a second mounting through hole 925. The first mounting through hole 924 is aligned with both the first positive conductive region 33b and the second positive conductive region 41; the second mounting through hole 925 is aligned with both the first negative conductive region 34b and the second negative conductive region 42. Specifically, the number of the first mounting through holes 924 and the second mounting through holes 925 is the same. For example, in this embodiment, there are two first mounting through holes 924 and two second mounting through holes 925; of course, in other embodiments, there is one first mounting through hole 924 and one second mounting through hole 925; or, there are three first mounting through holes 924 and three second mounting through holes 925, so it is not limited to this. Preferably, a copper sleeve 926 is fixedly embedded in the mounting through hole, and the conductive component 94 is disposed in the copper sleeve 926, thereby improving conductivity. It is worth noting that the inner seat 92 is made of an insulating material, such as plastic.

[0079] Please see Figure 15 and Figure 20 Preferably, the bottom surface of the inner seat 92 protrudes downwards with a raising pad 927, so that only the raising pad 927 contacts the second circuit board 4, rather than the entire bottom surface of the inner seat 92 contacting the second circuit board 4. This reduces the contact area, and when the inner seat 92 rotates, the second circuit board 4 remains stationary, reducing the impact of friction on the second circuit board 4. At the same time, the presence of the raising pad 927 allows the conductive self-lubricating part 941 to partially pass through the through hole and contact the conductive area of ​​the second circuit board 4, ensuring that the conductive self-lubricating part 941 can fully contact the conductive area of ​​the second circuit board 4.

[0080] The assembly sequence of the base 9, the first circuit board 3b, the second circuit board 4, and the conductive component 94 in the second embodiment of this utility model is as follows: 1. Position the conductive area of ​​the second circuit board 4 upwards and insert it into the receiving cavity 911 of the outer base 91; Second, the inner seat 92 is pressed into the receiving cavity 911 of the outer seat 91; 3. Insert several conductive components 94 into the mounting through holes of the inner base 92; Fourth, the conductive area of ​​the first circuit board 3b is facing downwards and pressed against the top surface of the inner seat 92. The first circuit board 3b and the inner seat 92 are fixed by tightening the threaded part 93.

[0081] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A rotatable power supply lamp base, comprising: The housing has an interface for plugging in and unplugging a power cord to supply power. A base body, which is rotatably mounted on the housing, and the base body is fixedly connected to an external lamp body; A first circuit board is built into the base and fixedly connected to the base, and the first circuit board is electrically connected to the conductive wire inside the lamp body. The second circuit board is built into the housing / base and is electrically connected to the power line; The first circuit board and the second circuit board are always in contact and electrically connected. When the base rotates relative to the housing, it causes the first circuit board to rotate relative to the second circuit board. While rotating relative to the second circuit board, the first circuit board also maintains contact with the second circuit board and remains electrically connected.

2. The rotatable power supply lamp base according to claim 1, characterized in that, A conductive component for electrical conduction is provided between the first circuit board and the second circuit board. One end of the conductive component is in contact with the first circuit board, and the other end of the conductive component is in rotational contact with the second circuit board.

3. The rotatable power supply lamp base according to claim 2, characterized in that, Both the first circuit board and the second circuit board are provided with conductive areas that are in contact with the conductive component, and the conductive areas are conductive copper foil.

4. The rotatable power supply lamp base according to claim 2, characterized in that, The conductive component includes a conductive self-lubricating part, a conductive elastic part, a conductive wire, and a conductive sheet. The conductive self-lubricating part and the second circuit board are in rotatable contact. The conductive sheet is in contact with the first circuit board. The conductive elastic part is connected between the conductive self-lubricating part and the conductive sheet, and its elasticity constantly ensures that the conductive self-lubricating part is in tight contact with the second circuit board, and also constantly ensures that the conductive sheet is in tight contact with the first circuit board. The conductive wire is connected between the conductive self-lubricating part and the conductive sheet.

5. The rotatable power supply lamp base according to claim 2, characterized in that, The base includes an outer base and an inner base built into the outer base. The outer base has a receiving cavity for the second circuit board and the inner base to be inserted sequentially, and a plug-in channel for the power cord to be plugged in. The receiving cavity extends upward through the upper surface of the outer base, and the plug-in channel extends downward through the bottom surface of the outer base. The inner base has a mounting through hole for the conductive component to be installed.

6. The rotatable power supply lamp base according to claim 1, characterized in that, The connector is located at the bottom of the housing. The bottom surface of the housing is recessed upward to form a receiving space for accommodating the power cord. The top wall of the receiving space also extends downward with positioning ribs for positioning the power cord. There are two positioning ribs, and the power cord is accommodated between the two positioning ribs.

7. The rotatable power supply lamp base according to claim 1, characterized in that, The seat body includes an upper seat portion and a lower seat portion, wherein the outer diameter of the upper seat portion is different from the outer diameter of the lower seat portion so that a shoulder is formed at the junction between the two.

8. The rotatable power supply lamp base according to claim 1, characterized in that, A connecting body is provided between the base and the housing. The base is rotatably mounted on the connecting body, and the connecting body is fixedly connected to the housing.

9. The rotatable power supply lamp base according to claim 8, characterized in that, The adapter includes a main body, which is a hollow columnar structure. The inner sidewall of the main body extends inward to form a support platform, and the outer sidewall of the main body extends outward to form a mounting platform. The support platform is used to support the seat and is rotatably connected to the seat. The mounting platform is used to attach to the shell.

10. The rotatable power supply lamp base according to claim 8, characterized in that, It also includes a screw cap, the housing has an insertion hole for inserting the adapter, the adapter passes through the insertion hole and overlaps the housing, and the screw cap passes through the insertion hole and is fixedly connected between the adapter and the housing.

11. The rotatable power supply lamp base according to claim 8, characterized in that, A first planar bearing is also sleeved between the base and the adapter; the lamp base also includes a connecting seat, which is fixedly connected to the base, and the connecting seat rotates in conjunction with the base; a second planar bearing is also sleeved between the connecting seat and the adapter.

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