Railway lamp and its power supply box unit, lighting system

Abstract

The utility model provides a guide rail lamp and power supply box unit, lighting system thereof, power supply box unit includes box body, connecting rod and presss from both sides, and box body is equipped with containing cavity and first connecting hole, and first connecting hole communicates with containing cavity, and the first end part of connecting rod is equipped with first buckle structure, and first buckle structure passes first connecting hole and is connected with the buckle of box body, and presss from both sides is connected with box body, and presss from both sides is equipped with the countersunk hole of passing through self, and countersunk hole has sunken head and first straight through hole department, and connecting rod passes through countersunk hole, and the first end of connecting rod still is equipped with first limit department, and first limit department is equipped in sunken head department. Lighting system is equipped with guide rail lamp, and guide rail lamp is equipped with above -mentioned power supply box unit, and this power supply box unit is convenient for assembly, and production cost is low and high security.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to a power supply box unit, a rail light equipped with the power supply box unit, and a lighting system equipped with the rail light. Background Technology

[0002] Currently, track lighting is one of the mainstream lighting devices, favored for its stylish and modern design and flexible installation methods, and widely used in homes, hotels, and other venues. The power supply box unit structure of track spotlights on the market mainly falls into the following two categories: The first type of power supply unit includes a housing, connecting rod, nut, etc. The bottom of the housing has a through hole, and the first end of the connecting rod has a stud. When assembling the connecting rod with the housing, the stud of the connecting rod is inserted into the through hole from the outside of the bottom of the housing, and then the nut is installed inside the housing, so that the nut is threadedly connected to the stud of the connecting rod. However, the shortcomings of this structure are: operating the connection between the nut and the stud of the connecting rod requires the use of tools. When the internal space of the housing is small, it is difficult to insert tools into the housing. Even with the help of fingers, it is difficult to operate and fix the nut, which can easily lead to an unstable connection between the nut and the stud of the connecting rod. In addition, this structure can easily increase labor costs and have poor assembly efficiency when assembling the housing, connecting rod, nut, etc. Furthermore, this structure will also cause the power supply unit to fail to meet the structural design requirements of small size specifications.

[0003] The second type involves a power supply box unit comprising a box body, connecting rods, etc. The bottom of the box body has a through hole, and the first end of the connecting rod has a latching structure. When the connecting rod is assembled with the box body, the latching structure of the connecting rod is inserted from the outside of the bottom of the box body into the through hole, so that the latching structure engages with the box body, thereby fixing the connecting rod to the box body. Although this structure can improve assembly efficiency, reduce labor costs, and does not require the use of other tools during assembly, the disadvantage of this structure is that, due to the large weight of the lamp body unit of the guide rail light and its connection to the second end of the connecting rod, the latching structure of the connecting rod is also subjected to the force exerted by the lamp body unit, which accelerates the failure rate of the latching structure. When the latch fails, there is a risk that the lamp body unit and the connecting rod will fall off the box body, increasing the safety risk. Utility Model Content

[0004] To address the aforementioned problems, the primary objective of this invention is to provide a power supply box unit that is easy to assemble, has low production costs, and offers high safety.

[0005] The second objective of this invention is to provide a rail light equipped with the aforementioned power supply box unit.

[0006] The third objective of this invention is to provide a lighting system equipped with the aforementioned rail lights.

[0007] To achieve the first objective of this utility model, this utility model provides a power supply box unit, including a box body and a connecting rod. The box body has a receiving cavity and a first connecting hole, which communicates with the receiving cavity. The first end of the connecting rod has a first snap-fit ​​structure, which passes through the first connecting hole and is fastened to the box body. The power supply box unit also includes a pressure sleeve, which is connected to the box body. The pressure sleeve has a countersunk hole that passes through it. The countersunk hole has a countersunk head and a first through hole. The connecting rod passes through the countersunk hole. The first end of the connecting rod also has a first limiting part, which is located inside the countersunk head.

[0008] As can be seen from the above, the connecting rod and the box are connected by a snap-fit ​​structure, which enables quick assembly of the two and improves the convenience of assembly. At the same time, it also allows the power box unit to meet the structural design requirements of small size. By adding a pressure sleeve, the pressure sleeve can support the connecting rod. On the one hand, it can reduce the failure rate of the first snap-fit ​​structure of the connecting rod. On the other hand, even if the first snap-fit ​​structure fails, the connecting rod can still be fixed to the box, preventing the connecting rod and the lamp unit connected to the connecting rod from falling off the box, thus improving safety.

[0009] In a preferred embodiment, the housing has two or more slots on the outer periphery of the first connecting hole, and the sleeve also has two or more plug-in parts, with each plug-in part corresponding to one of the two or more slots. The plug-in part is inserted into a corresponding slot. The plug-in part includes a second snap-fit ​​structure, which is fastened to the housing. Alternatively, the plug-in part includes a second connecting hole, and the slot has a first through hole. The power supply unit also includes a fastener, which passes through the first through hole in the receiving cavity and connects to the second connecting hole.

[0010] As can be seen from the above, the connection methods between the pressure sleeve and the box body are diverse, which improves the flexibility of power box unit production and can meet different design requirements. When the pressure sleeve and the box body are connected by a snap-fit ​​structure, the two can be quickly assembled and the number of parts required during assembly can be reduced. When the pressure sleeve and the box body are connected by fasteners, the reliability of the connection between the two can be improved and the connecting rod and the lamp body unit on it can be better prevented from falling off the box body.

[0011] Another preferred embodiment is that the power supply unit also includes a washer fitted onto the connecting rod and located within the first connection hole, with the washer adjacent to the housing and the connecting rod.

[0012] As can be seen from the above, the washer can compensate for the assembly tolerance between the connecting rod and the housing. At the same time, under the action of the washer, the connecting rod and the housing can have a damping effect, so that when the lighting angle of the lamp unit is adjusted by the connecting rod, the relative position between the connecting rod and the housing will not change, ensuring that the lighting angle of the lamp unit after adjustment is the desired angle.

[0013] A further embodiment is provided with a second limiting part inside the first connecting hole; a boss is also provided at the first end, the boss is located between the first buckle structure and the first limiting part, a third limiting part is provided on the outer periphery of the boss, the boss is located inside the first connecting hole, and the third limiting part can be rotated to be adjacent to the second limiting part.

[0014] As can be seen from the above, this design can prevent the connecting rod from rotating infinitely relative to the box in a certain direction of rotation, thereby preventing the cable passing through the connecting rod from getting twisted and preventing the cable from being damaged or broken.

[0015] A further embodiment is that the first connecting hole is a stepped hole, which has a second through hole portion, a first hole portion and a second hole portion with successively increasing diameters; a first snap-fit ​​structure passes through the second through hole portion, a washer is fitted on the first snap-fit ​​structure and located in the second hole portion, the washer is adjacent to the second hole portion and the boss, and the boss and the second limiting portion are located in the second hole portion.

[0016] As can be seen from the above, this design can improve the stability of the connection between the connecting rod and the housing, and enable the connecting rod to rotate smoothly relative to the housing, while better preventing the first end of the connecting rod from swinging relative to the housing under the action of the lamp unit.

[0017] Another preferred embodiment is that the connecting rod is hollow, and a third connecting hole is provided at the second end of the connecting rod; the power box also includes a support member with a clearance part, the support member is installed inside the connecting rod, the axis of the third connecting hole passes through the clearance part, and a wiring channel is formed between the support member and the connecting rod.

[0018] As can be seen from the above, designing the connecting rod as hollow serves two purposes. First, it allows the cables between the power supply box and the lamp body unit to be routed through the inside of the connecting rod, preventing cable exposure, protecting the cables, and improving the aesthetics of the rail light with the power supply box unit. Second, it also reduces the weight of the connecting rod. The addition of a support component enhances the structural strength at the second end of the connecting rod, preventing dents and deformations caused by the force of the connecting component when the connecting rod is connected to the lamp body unit. This ensures both the reliability of the connection between the connecting rod and the lamp body unit and the smoothness of rotation and adjustment between them.

[0019] A further proposed solution is that the power supply unit also includes a cover, a magnetic closure assembly, a control module, and a contact assembly. The cover fits over the opening of the receiving cavity and is connected to the box body. The magnetic closure assembly is mounted on the cover. The control module is installed inside the receiving cavity. The contact assembly is mounted on the box body and is electrically connected to the control module.

[0020] As can be seen from the above, placing the control module in the housing and sealing the opening of the cavity with a cover can prevent the control module from being contaminated by dust and ensure the safety of use; while installing the magnetic assembly on the cover allows the power box unit to be magnetically connected to the external guide rail through the magnetic assembly, making it easier to assemble and disassemble the power box unit and the guide rail; the contact assembly is used to connect with the conductive sheet inside the guide rail so that the guide rail can supply power to the power box unit.

[0021] A further improvement is that the two symmetrically arranged side walls of the box are equipped with a third buckle structure, and the distribution direction of the two side walls is perpendicular to the length direction of the box.

[0022] As can be seen from the above, setting a third snap-fit ​​structure on the box body can further improve the reliability of the connection between the power box unit and the guide rail, thereby avoiding affecting the ease of disassembly and assembly between the power box unit and the guide rail.

[0023] To achieve the second objective of this utility model, this utility model provides a rail lamp, including a lamp body unit, which further includes the aforementioned power supply box unit, and the lamp body unit is rotatably connected to the second end of the connecting rod.

[0024] As can be seen from the above, by configuring the aforementioned power supply box unit, the rail light can reduce production costs, meet the requirements of small-size structural design, and ensure high safety.

[0025] To achieve the third objective of this utility model, this utility model provides a lighting system including a guide rail, wherein the system also includes the aforementioned guide rail lamp, and the housing is detachably connected to the guide rail.

[0026] As can be seen from the above, by configuring the lighting system with the aforementioned rail lights, production costs can be reduced while improving safety during use. Attached Figure Description

[0027] Figure 1 This is a structural diagram of an embodiment of the guide rail lamp of this utility model.

[0028] Figure 2 This is an exploded view of the power box unit of the rail light embodiment of this utility model with the second snap-fit ​​structure installed in the pressure sleeve.

[0029] Figure 3 This is a structural diagram of the power box unit of the rail light embodiment of the present invention, with some components omitted when the pressure sleeve is equipped with the second snap-fit ​​structure.

[0030] Figure 4 This is a cross-sectional view of the power box unit of the rail light embodiment of this utility model, with some components omitted when the pressure sleeve is equipped with the second snap-fit ​​structure.

[0031] Figure 5 This is a structural diagram of the connecting rod in an embodiment of the guide rail light of this utility model.

[0032] Figure 6 This is a structural diagram of the support component of an embodiment of the guide rail lamp of this utility model.

[0033] Figure 7 This is a structural diagram of the pressure sleeve with the second snap-fit ​​structure in an embodiment of the guide rail light of this utility model.

[0034] Figure 8 This is a cross-sectional view of the power box unit of the guide rail light embodiment of the present invention when the pressure sleeve is provided with the second snap-fit ​​structure.

[0035] Figure 9 This is a cross-sectional view of the power box unit of the guide rail lamp embodiment of the present invention, with some components omitted when the pressure sleeve is provided with the second connection hole.

[0036] Figure 10 This is a structural diagram of the pressure sleeve with the second connecting hole in an embodiment of the guide rail light of this utility model.

[0037] Figure 11 This is a cross-sectional view of the power box unit of the guide rail lamp embodiment of the present invention when the pressure sleeve is provided with the second connection hole.

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0039] Track light embodiment Reference Figure 1 The rail light 100 includes a power supply box unit 101 and a lamp body unit 102. The lamp body unit 102 is rotatably connected to the power supply box unit 101, so that the lamp body unit 102 can adjust the pitch angle of the lighting position by adjusting its own pitch position relative to the power supply box unit 101, and can adjust the circumferential angle of the lighting position by adjusting the power supply box unit 101.

[0040] Combination Figure 2 The power supply box unit 101 includes a box body 1, a connecting rod 2, a pressure sleeve 3, a washer 4, a support member 5, a cover plate, a magnetic suction assembly 7, a control module 8, and a contact assembly 9. Combined with... Figure 3 and Figure 4 The box body 1 is provided with a receiving cavity 11, which can be used to receive the cover plate, control module 8, contact assembly 9, etc.; and the box body 1 is also provided with a first connection hole 12, which is preferably located at the bottom of the box body 1, that is, on the bottom wall opposite to the opening of the receiving cavity 11.

[0041] Combination Figure 5The first end of the connecting rod 2 is provided with a first snap-fit ​​structure 21. When the connecting rod 2 is assembled with the housing 1, the first snap-fit ​​structure 21 of the connecting rod 2 moves from the bottom of the housing 1 toward the first connecting hole 12 and is inserted into the first connecting hole 12. Then, the first snap-fit ​​structure 21 passes through the first connecting hole 12 and extends into the receiving cavity 11, and finally snaps onto the housing 1, completing the assembly of the connecting rod 2 and the housing 1, and allowing the connecting rod 2 to rotate relative to the housing 1 around the axis of the first connecting hole 12. By designing the assembly between the connecting rod 2 and the housing 1 to be connected by a snap-fit ​​structure, the two can be quickly assembled, improving the convenience of assembly. At the same time, the power box unit 101 can meet the structural design requirements of small size, thereby enabling the miniaturization of the rail light 100.

[0042] Washer 4 is fitted onto connecting rod 2 and located within the first connecting hole 12, and is adjacent to housing 1 and connecting rod 2. Since there is an assembly tolerance in the snap-fit ​​connection between connecting rod 2 and housing 1, washer 4 is provided to compensate for this tolerance. Furthermore, the relative rotation between connecting rod 2 and housing 1 under the action of washer 4 produces a certain damping effect, ensuring that the relative position between connecting rod 2 and housing 1 remains unchanged after adjusting the circumferential illumination angle of lamp unit 102 via connecting rod 2, thereby ensuring that the illumination angle of lamp unit 102 after adjustment is the desired angle.

[0043] Preferably, the first connecting hole 12 is designed as a stepped hole, specifically, the stepped hole includes a second through hole portion 121, a first hole portion 122, and a second hole portion 123; in addition, a boss 23 is provided at the first end of the connecting rod 2, the boss 23 being located between the first snap-fit ​​structure 21 and the second end of the connecting rod 2. The diameters of the second through hole portion 121, the first hole portion 122, and the second hole portion 123 increase sequentially, that is, the diameter of the second through hole portion 121 is smaller than the diameter of the first hole portion 122, and the diameter of the first hole portion 122 is smaller than the diameter of the second hole portion 123. After the connecting rod 2 is assembled with the housing 1, the first snap-fit ​​structure 21 passes through the second through hole 121 and engages with the top of the second through hole 121; the washer 4 is fitted onto the first snap-fit ​​structure 21, and the washer 4 is located inside the second hole 123 and is squeezed by the boss 23 and the bottom of the second hole 123. The diameter of the washer 4 is similar to or equal to the diameter of the first hole 122; the boss 23 is located inside the second hole 123, and the diameter of the boss 23 is similar to or equal to that of the second hole 123. This design can improve the stability of the connection between the connecting rod 2 and the housing 1, and enable the connecting rod 2 to rotate smoothly relative to the housing 1, and better prevent the swaying of the first end of the connecting rod 2 relative to the housing 1 under the action of the lamp unit 102.

[0044] Furthermore, a second limiting part 1231 is provided in the second hole portion 123 of the first connecting hole 12. Correspondingly, a third limiting part 231 is provided on the outer periphery of the boss 23. The third limiting part 231 is located in the second hole portion 123, so that the third limiting part 231 can rotate with the connecting rod 2 to be adjacent to the second limiting part 1231. Through the cooperation between the second limiting part 1231 and the third limiting part 231, the connecting rod 2 can be prevented from rotating infinitely relative to the housing 1 along a certain rotation direction around the axis of the first connecting hole 12, thereby preventing the cable passing through the connecting rod 2 from being twisted and preventing the cable from being damaged or broken.

[0045] The connecting rod 2 is hollow. This design allows the cable between the power supply box and the lamp body unit 102 to be routed through the inside of the connecting rod 2, avoiding cable exposure, protecting the cable, and improving the aesthetics of the rail lamp 100 with the power supply box unit 101. On the other hand, it also reduces the weight of the connecting rod 2. The second end of the connecting rod 2 has a third connecting hole 24, which allows the connecting rod 2 to be connected to the lamp body unit 102 through the second connecting hole and fastening components (such as bolts, nuts, etc.). This allows the lamp body unit 102 to rotate relative to the connecting rod 2 through the fastening components, thereby making the pitch and illumination angle of the lamp body unit 102 adjustable.

[0046] Combination Figure 6 The support member 5 is installed inside the second end of the connecting rod 2. The support member 5 has a clearance part 51. When the support member 5 is installed inside the second end of the connecting rod 2, the axis of the third connecting hole 24 passes through the clearance part 51, and a wiring channel is formed between the support member 5 and the connecting rod 2 for the cable routing between the control module 8 and the lamp body unit 102. By configuring the support member 5, the structural strength at the second end of the connecting rod 2 can be improved, and the dent deformation caused by the force of the fastening components when the connecting rod 2 is connected to the lamp body unit 102 can be avoided. This ensures both the reliability of the connection between the connecting rod 2 and the lamp body unit 102 and the smoothness of the rotation adjustment between the connecting rod 2 and the lamp body unit 102.

[0047] Combination Figure 7 and Figure 8 The pressure sleeve 3 is connected to the box body 1. The pressure sleeve 3 has a countersunk hole 31 that penetrates itself. The countersunk hole 31 has a countersunk head 311 and a first through hole 312. In addition, the first end of the connecting rod 2 is provided with a first limiting part 22, and the boss 23 is located between the first snap-fit ​​structure 21 and the first limiting part 22. When the pressure sleeve 3 is assembled with the box body 1 and the connecting rod 2, the connecting rod 2 passes through the countersunk hole 31, and the first limiting part 22 is located in the countersunk head 311. Preferably, the first end of the connecting rod 2 is also provided with a ring part 25. When the pressure sleeve 3 is assembled with the connecting rod 2, the ring part 25 is located in the first through hole 312. Further, the first limiting part 22 is preferably annular, and the diameter of the first limiting part 22 is similar to or equal to the diameter of the countersunk head 311, and the diameter of the ring part 25 is similar to or equal to the diameter of the first through hole 312.

[0048] By adding a pressure sleeve 3, the pressure sleeve 3 can support the connecting rod 2. On the one hand, it can reduce the failure rate of the first buckle structure 21 of the connecting rod 2. On the other hand, after the first buckle structure 21 fails, the connecting rod 2 can still be fixed on the box body 1, preventing the connecting rod 2 and the lamp body unit 102 connected to the connecting rod 2 from falling off the box body 1, thus improving safety.

[0049] The box body 1 has two or more slots 13 on the outer periphery of the first connecting hole 12. Correspondingly, the pressure sleeve 3 also has two or more plug-in parts 32. The two or more plug-in parts 32 correspond one-to-one with the two or more slots 13, so that when the pressure sleeve 3 is assembled with the box body 1, one plug-in part 32 can be inserted into the corresponding slot 13.

[0050] In this embodiment, the insertion part 32 includes a second snap-fit ​​structure 321. After the second snap-fit ​​structure 321 is inserted into the slot 13, it is fastened to the housing 1. Preferably, the slot 13 has a notch 131, so that when the second snap-fit ​​structure 321 is inserted into the slot 13, it is fastened to the notch 131. This design can better reduce the protrusion height of the second snap-fit ​​structure 321, thereby improving the structural strength of the second snap-fit ​​structure 321, which helps to improve the pressure-bearing capacity of the pressure sleeve 3 and extend the service life of the pressure sleeve 3. In addition, connecting the pressure sleeve 3 and the housing 1 through the snap-fit ​​structure can realize the quick assembly of the two and reduce the number of parts required for assembly.

[0051] In some embodiments, such as Figures 9 to 11 As shown, the slot 13 of the housing 1 no longer has a notch 131, and the slot 13 has a first through hole 132, which penetrates the housing 1 and communicates with the receiving cavity 11. Correspondingly, the insertion part 32 of the pressure sleeve 3 no longer has a second snap-fit ​​structure, but instead has a second connecting hole 322. Based on this, the power box unit 101 also includes a fastener 10. When the pressure sleeve 3 is assembled with the housing 1, the fastener 10 passes through the first through hole 132 in the receiving cavity 11 and connects with the second connecting hole 322. The fastener 10 is preferably a bolt. It can be seen that the connection method between the pressure sleeve 3 and the housing 1 is diverse, which improves the production flexibility of the power box unit 101 and can meet different design requirements. When the pressure sleeve 3 and the housing 1 are connected by the fastener 10, the reliability of the connection between the two can be improved, and the connecting rod 2 and the lamp body unit 102 on it can be better prevented from falling off the housing 1.

[0052] Reference Figure 2The cover plate is placed over the opening of the receiving cavity 11 and connected to the box body 1. In this embodiment, the cover plate is connected to the box body 1 by bolts; however, it is understood that the connection between the cover plate and the box body 1 is not limited to this. For example, the cover plate and the box body 1 can be connected by a snap-fit ​​structure, or the cover plate and the box body 1 can be connected by a magnetic assembly, etc.

[0053] The magnetic component 7 is installed on the cover 6. The magnetic component 7 is used to magnetically connect with the external guide rail, so that the power box unit 101 can be fixed on the external guide rail, thereby realizing the installation of the guide rail light 100 on the guide rail. This design also makes it easier to assemble and disassemble the power box unit 101 and the guide rail.

[0054] The control module 8 is installed inside the receiving cavity 11. The control module 8 is placed in the box 1 and the opening of the receiving cavity 11 is sealed by the cover 6, which can prevent the control module 8 from being contaminated by dust and ensure the safety of use.

[0055] The contact assembly 9 is mounted on the housing 1 and is electrically connected to the control module 8. The contact assembly 9 is used to connect with the conductive sheet in the guide rail so that the guide rail supplies power to the power supply unit 101 and realizes a quick electrical connection between the power supply unit 101 and the guide rail.

[0056] Furthermore, in this embodiment, the housing 1 is also provided with a third latching structure 14, which is disposed on two symmetrically arranged side walls of the housing 1, that is, each side wall is provided with a third latching structure 14, and the distribution direction of the two side walls is perpendicular to the length direction of the housing 1. By providing a third latching structure 14 on the housing 1, the reliability of the connection between the power supply unit 101 and the guide rail can be further improved, thereby avoiding any impact on the ease of disassembly and assembly between the power supply unit 101 and the guide rail.

[0057] In summary, by configuring the power supply box unit 101, the rail light 100 can reduce production costs, meet the requirements of small-size structural design, and has high safety.

[0058] Lighting System Examples The lighting system includes a guide rail and the guide rail lights described in the above-described guide rail light embodiment, with the housing detachably connected to the guide rail. By configuring the above-described guide rail lights, the lighting system can reduce production costs while improving safety in use.

[0059] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Power supply unit, including: The box body has a receiving cavity and a first connecting hole, the first connecting hole communicating with the receiving cavity; A connecting rod, the first end of which is provided with a first buckle structure, the first buckle structure passing through the first connecting hole and fastening to the box body; The power supply unit is characterized in that it further includes: A pressure sleeve is connected to the housing. The pressure sleeve has a countersunk hole that penetrates itself. The countersunk hole has a countersunk head and a first through hole. The connecting rod passes through the countersunk hole. A first limiting part is also provided at the first end of the connecting rod. The first limiting part is located inside the countersunk head.

2. The power supply unit according to claim 1, characterized in that: The box body has two or more slots on the outer periphery of the first connecting hole, and the pressure sleeve also has two or more plug-in parts. The two or more plug-in parts correspond one-to-one with the two or more slots, and the plug-in parts are inserted into the corresponding slot. The insertion part includes a second snap-fit ​​structure, which is fastened to the housing. The plug-in portion includes a second connection hole, the slot has a first through hole, and the power box unit also includes a fastener, which passes through the first through hole in the receiving cavity and is connected to the second connection hole.

3. The power supply unit according to claim 1, characterized in that: The power supply unit also includes a washer, which is sleeved on the connecting rod and located in the first connecting hole, and the washer is adjacent to the box body and the connecting rod.

4. The power supply unit according to claim 3, characterized in that: A second limiting part is provided inside the first connecting hole; The first end is also provided with a boss, which is located between the first buckle structure and the first limiting part. A third limiting part is provided on the outer periphery of the boss. The boss is located in the first connecting hole. The third limiting part can be rotated to be adjacent to the second limiting part.

5. The power supply unit according to claim 4, characterized in that: The first connecting hole is a stepped hole, which has a second through hole portion, a first hole portion and a second hole portion with successively increasing diameters; The first snap-fit ​​structure passes through the second through hole, the washer is sleeved on the first snap-fit ​​structure and located inside the second hole, the washer is adjacent to the second hole and the boss, and the boss and the second limiting part are located inside the second hole.

6. The power supply unit according to claim 1, characterized in that: The connecting rod is hollow, and a third connecting hole is provided at the second end of the connecting rod; The power supply box also includes a support member with a clearance portion. The support member is installed inside the connecting rod, and the axis of the third connecting hole passes through the clearance portion. A wiring channel is formed between the support member and the connecting rod.

7. The power supply box unit according to any one of claims 1 to 6, characterized in that: The power supply unit also includes: A cover that covers the opening of the receiving cavity and is connected to the box body; A magnetic suction assembly is mounted on the cover. A control module is installed within the receiving cavity; A contact assembly, which is mounted on the housing and electrically connected to the control module.

8. The power supply unit according to claim 7, characterized in that: The two symmetrically arranged side walls of the box are each provided with a third buckle structure, and the distribution direction of the two side walls is perpendicular to the length direction of the box.

9. A rail light, comprising a light body unit, characterized in that, It also includes a power supply box unit as described in any one of claims 1 to 8, wherein the lamp body unit is rotatably connected to the second end of the connecting rod.

10. A lighting system, including a guide rail, characterized in that, It also includes the rail light as described in claim 9, wherein the housing is detachably connected to the rail.

Images