Power box assembly of LED display device and LED display device with same

Abstract

The application provides a power box assembly of an LED display device and an LED display device with the same. The power box assembly of the LED display device comprises a base and two fixing seats which are arranged on the base in a spaced manner; a power box which is detachably arranged between the two fixing seats; and a locking mechanism which is arranged between at least one fixing seat and a side wall of the power box. The locking mechanism comprises a rotating lock rod, a locking pin and a reset member. The rotating lock rod and the reset member are arranged on one of the power box and the fixing seat, and the locking pin is arranged on the other one of the power box and the fixing seat. The rotating lock rod is rotatably arranged and has a locking position and an avoiding position. A first end of the rotating lock rod is arranged as a manual operation end, and a second end of the rotating lock rod is provided with a locking bayonet. The reset member cooperates with the rotating lock rod to provide a restoring force. Through the scheme, the problem that the power box is complex to operate during disassembly in the related art can be solved.

Description

Technical Field

[0001] This invention relates to the field of electronic product technology, and more specifically, to a power supply box assembly for an LED display device and an LED display device having the same assembly. Background Technology

[0002] An LED display device is a type of display used to show text, images, and video information. With the development of LED technology, LED display devices, which use LEDs as their light source, are becoming increasingly common in daily life, greatly enriching people's lives. LED display devices primarily change the content displayed on the screen by controlling the working state of the light-emitting diodes.

[0003] In related technologies, LED display devices mainly consist of LED modules, a power supply box, and a housing. The power supply box supplies power to the LED modules and is connected to the housing using screws or pins to secure it to the housing.

[0004] However, the connection structure used in related technologies presents a problem of complex operation when disassembling and assembling the power supply box. Summary of the Invention

[0005] The present invention provides a power supply box assembly for an LED display device and an LED display device having the same, so as to solve the problem of complicated operation when disassembling and assembling the power supply box in the related art.

[0006] According to one aspect of the present invention, a power supply box assembly for an LED display device is provided, comprising: a base and two fixing seats, the two fixing seats being spaced apart on the base; a power supply box, detachably disposed between the two fixing seats; and a locking mechanism disposed between at least one fixing seat and a side wall of the power supply box, the locking mechanism comprising a rotating locking rod, a locking pin, and a resetting member, the rotating locking rod and the resetting member being disposed on one of the power supply box and the fixing seats, the locking pin being disposed on the other of the power supply box and the fixing seats, the rotating locking rod being rotatably disposed and having a locked position and a clearance position, the first end of the rotating locking rod being provided with... For manual operation, the second end of the rotating locking lever is provided with a locking slot. The reset component cooperates with the rotating locking lever to provide a restoring force. When the power box is assembled towards the base, the locking pin can abut against the second end of the rotating locking lever and overcome the restoring force, causing the rotating locking lever to rotate to the clearance position until the locking pin engages with the locking slot. When the locking pin engages with the locking slot, the restoring force can drive the rotating locking lever to reset to the locked position, so that the rotating locking lever locks the locking pin. By operating the manual operation end, the rotating locking lever can be driven to switch from the locked position to the clearance position, so that the locking pin disengages from the locking slot.

[0007] Furthermore, the rotating locking rod includes a rod body and an anti-rotation member. The rod body is provided with a receiving groove, and the anti-rotation member is rotatably disposed in the receiving groove. The rod body is rotatably disposed on one of the power supply box and the fixing base, and the other of the power supply box and the fixing base is provided with an anti-rotation mating part. The anti-rotation member has a retractable position that is received in the receiving groove and an anti-rotation position that protrudes from the receiving groove and anti-rotation mating part. When the rotating locking rod locks the locking pin and the anti-rotation member is in the anti-rotation position, the anti-rotation member restricts the rotating locking rod from rotating toward the avoidance position.

[0008] Furthermore, a first anti-rotation surface is provided in the receiving groove, and the circumferential sidewall of the anti-rotation member has an anti-rotation main body and a second anti-rotation surface spaced apart. When the locking rod is rotated to lock the locking pin and the anti-rotation member is in the anti-rotation position, the first anti-rotation surface and the second anti-rotation surface are in contact, and the anti-rotation main body and the anti-rotation mating part abut against each other.

[0009] Furthermore, a mounting recess is provided on the side wall of the power supply box, and the rotating locking rod is rotatably disposed in the mounting recess. The mounting recess has a first limiting side wall, which forms an anti-rotation mating part.

[0010] Furthermore, a mounting recess is provided on the side wall of the power supply box, and the rotating locking rod is rotatably disposed in the mounting recess. The mounting recess has a second limiting side wall disposed opposite to the locking slot. When the locking rod is rotated to lock the locking pin, the locking pin is limited between the second limiting side wall and the locking slot.

[0011] Furthermore, the mounting recess also has a third limiting sidewall disposed opposite to the second limiting sidewall, wherein the reset member includes a reset spring, one end of the reset spring abutting against the sidewall of the rotating locking rod, and the other end of the reset spring abutting against the third limiting sidewall; and / or, when the rotating locking rod is in the locked position, the first end of the rotating locking rod is in contact with the end of the third limiting sidewall.

[0012] Furthermore, the mounting recess has two limiting ribs that protrude from its bottom wall and are arranged in parallel, and the gap between the two limiting ribs forms a limiting groove, in which the resetting member is located.

[0013] Furthermore, the opening of the mounting recess is covered with a cover plate, and the rotating locking rod and the reset component are both located between the power supply box and the cover plate. The cover plate is provided with a clearance groove on the side facing the second limiting side wall to avoid the locking pin.

[0014] Furthermore, the rotating locking lever includes an operating section and a locking section connected to each other. The operating section and the locking section are set at an obtuse angle. The end of the operating section away from the locking section forms a manual operating end. The locking latch is set on the locking section. The rotation center of the rotating locking lever is set at the connection between the operating section and the locking section.

[0015] Furthermore, when the locking lever is rotated to lock the locking pin, the locking pin and the reset piece are located on opposite sides of the locking section, and the reset piece and the operating section are located on the same side of the rotation center of the rotating locking lever.

[0016] Furthermore, a guide ramp is provided on the side of the locking segment away from the reset member, and the lateral distance between the guide ramp and the locking pin gradually increases in the direction from the operating segment to the locking segment.

[0017] Furthermore, the lateral distance between the upper edge of the locking latch and the center of the locking pin is less than the lateral distance between the lower edge of the locking latch and the center of the locking pin.

[0018] Furthermore, the power supply box assembly of the LED display device also includes a positioning structure, which includes a positioning groove and a positioning pin inserted into the positioning groove. The positioning pin is located on one of the power supply box or the mounting base, and the positioning groove is located on the other of the power supply box or the mounting base.

[0019] According to another aspect of the present invention, an LED display device is provided, comprising: a housing; an LED module disposed on the front side of the housing; and a power supply box assembly for the LED display device, wherein the power supply box of the power supply box assembly is electrically connected to the LED module, and the base and fixing seat of the power supply box assembly are disposed on the rear side of the housing. The power supply box assembly for the LED display device is the power supply box assembly for the LED display device provided above.

[0020] According to the technical solution of this invention, the power supply box assembly of an LED display device includes a base, a power supply box, and a locking mechanism. When using this power supply box assembly, when the power supply box is installed between two fixed seats, the power supply box is moved towards the base, causing the side wall of the locking pin to abut against the side wall of the rotating locking rod. The locking pin drives the rotating locking rod to rotate to a clearance position, allowing the locking pin to move relative to the rotating locking rod from the second end to the first end. When the locking pin is in the locking slot, a reset member drives the rotating locking rod to reset to the locking position, locking the rotating locking rod and the locking pin together, thereby locking the power supply box onto the base. When it is necessary to disassemble the power supply box, the manual operation end of the rotating locking rod is operated to rotate the rotating locking rod to the clearance position, causing the locking pin to disengage from the locking slot, releasing the relative locking between the rotating locking rod and the locking pin. The power supply box is then moved away from the base, allowing it to be disassembled from the base. Since no additional operations are required when assembling the power supply box, and disassembly of the power supply box can be achieved simply by operating the manual control terminal, the assembly and disassembly of the power supply box are much simpler. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A partial exploded view of the power supply box assembly of the LED display device provided in an embodiment of the present invention is shown;

[0023] Figure 2 It shows Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 3 It shows Figure 1 A schematic diagram of the rotating locking rod in the middle;

[0025] Figure 4 It shows Figure 1 A schematic diagram of the anti-rotation component in the middle;

[0026] Figure 5 An exploded view of the power supply box assembly of the LED display device provided in an embodiment of the present invention is shown;

[0027] Figure 6 An assembly diagram of the power supply box assembly of the LED display device provided in an embodiment of the present invention is shown;

[0028] Figure 7 A side view of the power supply box of the power supply box assembly of the LED display device provided in an embodiment of the present invention is shown;

[0029] Figure 8 This diagram shows the structure of the power supply box assembly of the LED display device provided in this embodiment of the invention before the rotation locking rod and locking pin are assembled;

[0030] Figure 9 This is a schematic diagram showing the assembly process of the rotating locking rod and locking pin of the power supply box assembly of the LED display device provided in an embodiment of the present invention;

[0031] Figure 10 This diagram shows the structure of the power supply box assembly of the LED display device provided in an embodiment of the present invention after the assembly process of the rotating locking rod and locking pin.

[0032] Figure 11 This invention provides a schematic diagram showing the structure of the anti-rotation member of the power supply box assembly of the LED display device located in the anti-rotation position.

[0033] Figure 12 An exploded view of an LED display device provided in an embodiment of the present invention is shown.

[0034] The above figures include the following reference numerals:

[0035] 10. Base; 11. Mounting bracket;

[0036] 20. Power supply box; 21. Mounting recess; 211. First limiting sidewall; 212. Second limiting sidewall; 213. Third limiting sidewall; 214. Limiting rib; 2141. Limiting groove;

[0037] 30. Locking mechanism; 31. Rotating locking rod; 311. Manual operation end; 312. Locking latch; 313. Rod body; 3131. First anti-rotation surface; 3132. Receiving groove; 314. Anti-rotation component; 3141. Anti-rotation main body; 3142. Second anti-rotation surface; 315. Operating section; 316. Locking section; 3161. Guide slope; 32. Locking pin; 33. Reset component; 331. Reset spring;

[0038] 40. Cover plate; 41. Clearance groove;

[0039] 50. Positioning structure; 51. Positioning pin;

[0040] 60. Box body. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figures 1 to 12As shown, this embodiment of the invention provides a power supply box assembly for an LED display device, including a base 10, two fixed seats 11, a power supply box 20, and a locking mechanism 30. The two fixed seats 11 are spaced apart on the base 10; the power supply box 20 is detachably disposed between the two fixed seats 11; the locking mechanism 30 is disposed between at least one fixed seat 11 and the side wall of the power supply box 20, and the locking mechanism 30 includes a rotating locking rod 31, a locking pin 32, and a reset member 33. The rotating locking rod 31 and the reset member 33 are disposed on one of the power supply box 20 and the fixed seat 11, and the locking pin 32 is disposed on the other of the power supply box 20 and the fixed seat 11. The rotating locking rod 31 is rotatably disposed and has a locked position and a clearance position. The manual operation end 311 is provided, and the second end of the rotating locking rod 31 is provided with a locking slot 312. The reset member 33 cooperates with the rotating locking rod 31 to provide a restoring force. When the power box 20 is assembled in the direction toward the base 10, the locking pin 32 can abut against the second end of the rotating locking rod 31 and overcome the restoring force, so that the rotating locking rod 31 rotates to the avoidance position until the locking pin 32 is engaged in the locking slot 312. When the locking pin 32 is engaged in the locking slot 312, the restoring force can drive the rotating locking rod 31 to reset to the locked position, so that the rotating locking rod 31 locks the locking pin 32. By operating the manual operation end 311, the rotating locking rod 31 can be driven to switch from the locked position to the avoidance position, so that the locking pin 32 is disengaged from the locking slot 312.

[0043] According to the technical solution of the present invention, the power supply box assembly of the LED display device includes a base 10, a power supply box 20, and a locking mechanism 30. When using the power supply box assembly of the LED display device, when the power supply box 20 is installed between two fixed seats 11, the power supply box 20 is moved toward the base 10, so that the side wall of the locking pin 32 is in contact with the side wall of the rotating locking rod 31. The locking pin 32 drives the rotating locking rod 31 to rotate to the clearance position, so that the locking pin 32 can move relative to the rotating locking rod 31 from the second end to the first end. When the locking pin 32 is located in the locking slot 312, the rotating locking rod 31 is driven to reset to the locking position by the reset member 33, so that the rotating locking rod 31 and the locking pin 32 are locked to each other, thereby locking the power supply box 20 on the base 10. When it is necessary to disassemble the power supply box 20, the manual operating end 311 of the rotating locking lever 31 is operated to rotate the rotating locking lever 31 to the clearance position, causing the locking pin 32 to disengage from the locking slot 312, thereby releasing the relative locking between the rotating locking lever 31 and the locking pin 32. The power supply box 20 is then moved away from the base 10, allowing it to be removed from the base 10. Since no additional operations are required when assembling the power supply box 20, and disassembly can be achieved solely by operating the manual operating end 311, the assembly and disassembly of the power supply box 20 are significantly simplified.

[0044] It should be noted that when the power supply box 20 is separated from the base 10, the rotating locking lever 31 is in its initial position, and the state of the rotating locking lever 31 in its initial position is the same as that of the rotating locking lever 31 in its locked position. When the power supply box 20 is installed on the base 10, the rotating locking lever 31 can be switched to the clearance position under the drive of the locking pin 32 so that the locking pin 32 can move into the locking slot 312. When the power supply box 20 is detached from the base 10, the rotating locking lever 31 can be rotated to the clearance position by operating the manual operation end 311 so that the locking pin 32 disengages from the locking slot 312.

[0045] The locking pin 32 can drive the rotating locking rod 31 to rotate to the avoidance position. This means that when the power box 20 moves toward the base 10, the side wall of the locking pin 32 contacts the side wall of the rotating locking rod 31, and the movement of the locking pin 32 relative to the rotating locking rod 31 causes the locking pin 32 to drive the rotating locking rod 31 to rotate along its rotation center.

[0046] It should be noted that when the locking lever 31 is rotated to lock the locking pin 32, the base 10 and the power supply box 20 are locked, preventing the power supply box 20 from detaching from the base 10. In the front-rear direction of the LED display device, the locking latch 312 and the locking pin 32 cooperate to restrict the power supply box 20 from moving in the front-rear direction of the base 10. In the vertical direction of the LED display device, the fixing seat 11 restricts the power supply box 20 from moving in the vertical direction of the base 10. In the left-right direction of the LED display device, the power supply box 20 can be restricted from moving in the left-right direction of the base 10 by setting a hook at the opening of the locking latch 312, or by setting a positioning pin and a positioning groove that interlock, or by setting a locking rib on the power supply box 20 or the fixing seat 11, thereby restricting the power supply box 20 from moving in the left-right direction of the base 10 by limiting the locking pin 32 between the locking latch 312 and the locking rib.

[0047] like Figure 1 , Figure 3 , Figure 10 as well as Figure 11As shown, the rotating locking lever 31 includes a lever body 313 and an anti-rotation member 314. The lever body 313 has a receiving groove 3132, and the anti-rotation member 314 is rotatably disposed within the receiving groove 3132. The lever body 313 is rotatably disposed on one of the power supply box 20 and the fixing base 11, and the other of the power supply box 20 and the fixing base 11 has an anti-rotation engagement part. The anti-rotation member 314 has a retractable position that is received within the receiving groove 3132 and an anti-rotation position that protrudes from the receiving groove 3132 and engages with the anti-rotation engagement part. When the rotating locking lever 31 locks the locking pin 32 and the anti-rotation member 314 is in the anti-rotation position, the anti-rotation member 314 restricts the rotating locking lever 31 from rotating toward the avoidance position. By using the anti-rotation member 314, the rotation of the rotating locking lever 31 can be restricted, so that the rotating locking lever 31 is in the locked position, preventing the locking pin 32 from dislodging from the locking latch 312, thereby achieving a stable connection between the power supply box 20 and the base 10.

[0048] like Figure 3 , Figure 4 as well as Figure 11 As shown, a first anti-rotation surface 3131 is provided in the receiving groove 3132. The circumferential sidewall of the anti-rotation member 314 has a spaced-apart anti-rotation main body 3141 and a second anti-rotation surface 3142. When the locking rod 31 is rotated to lock the locking pin 32 and the anti-rotation member 314 is in the anti-rotation position, the first anti-rotation surface 3131 and the second anti-rotation surface 3142 are in contact, and the anti-rotation main body 3141 abuts against the anti-rotation mating part. With the above structure, the first anti-rotation surface 3131 and the anti-rotation mating part can both interfere with the anti-rotation member 314, thereby preventing the anti-rotation member 314 from rotating counterclockwise and preventing the anti-rotation member 314 from rotating from the anti-rotation position to the retraction position.

[0049] It should be noted that, as Figure 3 As shown, a rotating hole is provided in the receiving groove 3132, and a rotating pin is provided in the anti-rotation member 314. The rotating pin is inserted into the rotating hole and can rotate along the rotating hole, so that the anti-rotation member 314 can switch between the retraction position and the anti-rotation position. Furthermore, an indicator protrusion is provided on the rotating pin, and an indicator groove is provided in the rotating hole corresponding to both the retraction position and the anti-rotation position. When the anti-rotation member 314 is in the retraction position or the anti-rotation position, the indicator protrusion is located in the indicator groove to remind the user that the anti-rotation member 314 has rotated to the correct position.

[0050] In this embodiment, the anti-rotation mating part is a planar structure, the first anti-rotation surface 3131 is also a planar structure, and the anti-rotation main body 3141 and the second anti-rotation surface 3142 are two non-connected planar structures. When the anti-rotation member 314 is in the retracted position, neither the anti-rotation main body 3141 nor the second anti-rotation surface 3142 of the anti-rotation member 314 has any limiting structure.

[0051] The anti-rotation member 314 has an opening groove on the side facing the first end of the rotating locking rod 31. The opening groove is exposed outside the power box 20, and the operator can rotate the anti-rotation member 314 through the opening groove.

[0052] like Figure 1 , Figure 10 and Figure 11 As shown, a mounting recess 21 is provided on the side wall of the power supply box 20. The rotating locking rod 31 is rotatably disposed in the mounting recess 21. The mounting recess 21 has a first limiting sidewall 211, which forms an anti-rotation mating part. The structure in which the first limiting sidewall 211 forms the anti-rotation mating part has the advantages of simple structure and easy processing.

[0053] like Figure 10 and Figure 11 As shown, a mounting recess 21 is provided on the side wall of the power supply box 20. The rotating locking rod 31 is rotatably disposed in the mounting recess 21. The mounting recess 21 has a second limiting sidewall 212 that is disposed opposite to the locking slot 312. When the locking rod 31 is rotated to lock the locking pin 32, the locking pin 32 is limited between the second limiting sidewall 212 and the locking slot 312. By using the cooperation of the second limiting sidewall 212 and the locking slot 312, the locking pin 32 can be limited to prevent it from dislodging from the opening of the locking slot 312, so that the power supply box 20 cannot move in the left and right directions of the base 10.

[0054] In this embodiment, the first limiting sidewall 211 and the second limiting sidewall 212 are connected, and their cross-section forms a zigzag structure, which makes the power box 20 easier to process.

[0055] like Figure 10 and Figure 11 As shown, the mounting recess 21 also has a third limiting sidewall 213 disposed opposite to the second limiting sidewall 212. The reset member 33 includes a reset spring 331, one end of which abuts against the sidewall of the rotating locking rod 31, and the other end of which abuts against the third limiting sidewall 213. When the rotating locking rod 31 is in the locked position, the first end of the rotating locking rod 31 is in contact with the end of the third limiting sidewall 213. By using the third limiting sidewall 213, on the one hand, it can form the abutment end of the reset spring 331, and on the other hand, its end can be used to support the rotating locking rod 31 so that the rotating locking rod 31 can be in the locked position.

[0056] In this embodiment, the ends of the first limiting sidewall 211 and the third limiting sidewall 213 form through grooves, and the manual operation end 311 of the rotating locking rod 31 and the opening groove of the anti-rotation member 314 both pass through the through grooves and are exposed to the power box 20.

[0057] like Figure 1 , Figure 2 as well as Figure 9 As shown, the mounting recess 21 has two limiting ribs 214 protruding from its bottom wall and arranged parallel to each other. The gap between the two limiting ribs 214 forms a limiting groove 2141, and the reset member 33 is located in the limiting groove 2141. With the limiting groove 2141 of the above structure, the reset member 33 can be limited to the limiting groove 2141, so that the reset member 33 will not move.

[0058] In this embodiment, the locking mechanism includes two return springs 331. Three limiting ribs 214 are provided on the bottom wall of the mounting recess 21. The three limiting ribs 214 form two limiting grooves 2141. The two return springs 331 are respectively disposed in the two limiting grooves 2141. Both ends of the two return springs 331 abut against the side wall of the rotating locking rod 31 and the third limiting side wall 213.

[0059] like Figure 1 and Figure 7 As shown, a cover plate 40 is provided over the opening of the mounting recess 21. The rotating locking rod 31 and the reset member 33 are both located between the power supply box 20 and the cover plate 40. The cover plate 40 has a clearance groove 41 on the side facing the second limiting sidewall 212 to avoid the locking pin 32. The cover plate 40 can limit the rotating locking rod 31 and the reset member 33, so that the rotating locking rod 31 is limited in the mounting recess 21 and the reset member 33 is limited in the limiting groove 2141.

[0060] like Figure 1 , Figure 3 as well as Figure 8 As shown, the rotating locking rod 31 includes an operating section 315 and a locking section 316 connected together. The operating section 315 and the locking section 316 are set at an obtuse angle. The end of the operating section 315 away from the locking section 316 forms a manual operating end 311. A locking slot 312 is provided on the locking section 316. The rotation center of the rotating locking rod 31 is located at the connection between the operating section 315 and the locking section 316. The rotating locking rod 31 with the above structure can reduce the length of the rotating locking rod 31 by utilizing the obtuse angle between the operating section 315 and the locking section 316, and can provide space for the mounting recess 21, which is beneficial for the setting of the first limiting sidewall 211. It also has the advantages of simple structure and easy processing.

[0061] In this embodiment, the first anti-rotation surface 3131 is disposed on the operating section 315.

[0062] like Figure 1 , Figure 3 , Figure 9 as well as Figure 10As shown, when the locking lever 31 locks the locking pin 32, the locking pin 32 and the reset member 33 are located on opposite sides of the locking section 316, and the reset member 33 and the operating section 315 are both located on the same side of the rotation center of the locking lever 31. By having the locking pin 32 and the reset member 33 located on opposite sides of the locking section 316, the end of the locking pin 32 and the reset member 33 can be positioned on the same plane, thereby reducing the depth of the mounting recess 21 and thus reducing the height of the power supply box 20. By having the reset member 33 and the operating section 315 both located on the same side of the rotation center of the locking lever 31, the cross-sectional area of ​​the mounting recess 21 can be reduced, which in turn helps to reduce the area of ​​the cover plate 40.

[0063] like Figure 3 and Figure 8 As shown, a guide slope 3161 is provided on the side of the locking section 316 away from the reset member 33. In the direction from the operating section 315 to the locking section 316, the lateral distance between the guide slope 3161 and the locking pin 32 gradually increases. The guide slope 3161 allows the sidewall of the locking section 316 to form a smooth contact with the locking pin 32, preventing interference between them and facilitating the locking pin 32's ability to drive the rotating locking lever 31 to rotate.

[0064] In this embodiment, the lateral distance between the upper edge of the locking slot 312 and the center of the locking pin 32 is less than the lateral distance between the lower edge of the locking slot 312 and the center of the locking pin 32. With this structure, the locking pin 32 can be quickly and easily disengaged from the opening of the locking slot 312 when disassembling the power supply box 20. When assembling the power supply box 20, the locking pin 32 will not extend beyond the locking slot 312 due to excessively rapid assembly, thus preventing the locking pin 32 from failing to engage properly within the locking slot 312.

[0065] like Figure 8 As shown, the lateral distance between the upper edge of the locking slot 312 and the center of the locking pin 32 is zero.

[0066] It should be noted that the upper and lower edges of the locking slot 312 only indicate... Figure 8 If the arrangement of the locking mechanism 30 changes, the upper and lower edges of the locking slot 312 will also change accordingly.

[0067] like Figure 5 and Figure 12As shown, the power supply box assembly of the LED display device also includes a positioning structure 50. The positioning structure 50 includes a positioning groove and a positioning pin 51 inserted into the positioning groove. The positioning pin 51 is disposed on one of the power supply box 20 and the fixing base 11, and the positioning groove is disposed on the other of the power supply box 20 and the fixing base 11. By using the positioning structure 50, the base 10 can quickly position the power supply box 20 so that the locking pin 32 can be accurately located on one side of the guide slope 3161 of the locking section 316, thereby enabling the locking pin 32 to drive the rotating locking rod 31.

[0068] In this embodiment, the positioning pins 51 are located at two opposite corners of the base 10 so as to provide positioning for both ends of the power supply box 20.

[0069] like Figure 1 , Figure 5 as well as Figure 12 As shown, the two mounting bases 11 correspond to the two ends of the power supply box 20, and a locking mechanism 30 is provided between the power supply box 20 and the mounting bases 11. By providing locking mechanisms 30 at both ends of the power supply box 20, a locking effect can be formed between both ends of the power supply box 20 and the mounting bases 11, making the connection between the power supply box 20 and the base 10 more stable.

[0070] like Figure 12 As shown, another embodiment of the present invention provides an LED display device, which includes a housing 60, an LED module, and a power supply box assembly. The LED module is disposed on the front side of the housing 60. The power supply box 20 of the power supply box assembly is electrically connected to the LED module. The base 10 and the fixing seat 11 of the power supply box assembly are disposed on the rear side of the housing 60. The power supply box assembly is the same as the one provided above. Using the LED display device provided above, since no additional operations are required when assembling the power supply box 20, and disassembly of the power supply box 20 can be achieved simply by operating the manual operation terminal 311, the assembly and disassembly of the power supply box 20 is much simpler.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A power supply box assembly for an LED display device, characterized in that, include: The base (10) and two fixing seats (11) are spaced apart on the base (10); The power supply box (20) is detachably disposed between the two mounting bases (11); A locking mechanism (30) is disposed between at least one of the fixed seats (11) and the side wall of the power box (20). The locking mechanism (30) includes a rotating locking rod (31), a locking pin (32), and a reset member (33). The rotating locking rod (31) and the reset member (33) are disposed on one of the power box (20) and the fixed seat (11), and the locking pin (32) is disposed on the other of the power box (20) and the fixed seat (11). The rotating locking rod (31) is rotatably disposed and has a locking position and a clearance position. The first end of the rotating locking rod (31) is provided as a manual operation end (311), and the second end of the rotating locking rod (31) is provided with a locking slot (312). The reset member (33) cooperates with the rotating locking rod (31) to provide a restoring force. When the power box (20) is assembled toward the base (10), the locking pin (32) can abut against the second end of the rotating locking rod (31) and overcome the restoring force, so that the rotating locking rod (31) rotates to the clearance position until the locking pin (32) is engaged in the locking slot (312); when the locking pin (32) is engaged in the locking slot (312), the restoring force can drive the rotating locking rod (31) to return to the locking position, so that the rotating locking rod (31) locks the locking pin (32); by operating the manual operation end (311), the rotating locking rod (31) can be driven to switch from the locking position to the clearance position, so that the locking pin (32) is disengaged from the locking slot (312); The power box (20) has a mounting recess (21) on its side wall, and the rotating locking rod (31) is rotatably disposed in the mounting recess (21); The rotating locking lever (31) includes an operating section (315) and a locking section (316) connected to each other. A guide slope (3161) is provided on the side of the locking section (316) away from the reset member (33). In the direction from the operating section (315) to the locking section (316), the lateral distance between the guide slope (3161) and the locking pin (32) gradually increases.

2. The power supply box assembly of the LED display device according to claim 1, characterized in that, The rotating locking rod (31) includes a rod body (313) and an anti-rotation member (314). The rod body (313) is provided with a receiving groove (3132). The anti-rotation member (314) is rotatably disposed in the receiving groove (3132). The rod body (313) is rotatably disposed on one of the power supply box (20) and the fixed seat (11). The other of the power supply box (20) and the fixed seat (11) is provided with an anti-rotation engagement part. The anti-rotation member (314) has a retractable position that is received in the receiving groove (3132) and an anti-rotation position that protrudes from the receiving groove (3132) and engages with the anti-rotation engagement part. When the rotating locking rod (31) locks the locking pin (32) and the anti-rotation member (314) is located in the anti-rotation position, the anti-rotation member (314) restricts the rotating locking rod (31) from rotating toward the avoidance position.

3. The power supply box assembly of the LED display device according to claim 2, characterized in that, The receiving groove (3132) is provided with a first anti-rotation surface (3131). The circumferential sidewall of the anti-rotation member (314) has a spaced anti-rotation main body (3141) and a second anti-rotation surface (3142). When the rotating locking rod (31) locks the locking pin (32) and the anti-rotation member (314) is in the anti-rotation position, the first anti-rotation surface (3131) and the second anti-rotation surface (3142) are in contact, and the anti-rotation main body (3141) abuts against the anti-rotation mating part.

4. The power supply box assembly of the LED display device according to claim 2, characterized in that, The power box (20) has a mounting recess (21) on its side wall. The rotating locking rod (31) is rotatably disposed in the mounting recess (21). The mounting recess (21) has a first limiting side wall (211), which forms the anti-rotation mating part.

5. The power supply box assembly of the LED display device according to claim 1, characterized in that, The mounting recess (21) has a second limiting sidewall (212) that is disposed opposite to the locking slot (312). When the rotating locking rod (31) locks the locking pin (32), the locking pin (32) is limited between the second limiting sidewall (212) and the locking slot (312).

6. The power supply box assembly of the LED display device according to claim 5, characterized in that, The mounting recess (21) also has a third limiting sidewall (213) disposed opposite to the second limiting sidewall (212), wherein, The reset component (33) includes a reset spring (331), one end of which abuts against the side wall of the rotating locking rod (31), and the other end of which abuts against the third limiting side wall (213); and / or, When the rotating locking rod (31) is in the locked position, the first end of the rotating locking rod (31) is in contact with the end of the third limiting sidewall (213).

7. The power supply box assembly of the LED display device according to claim 5, characterized in that, The mounting recess (21) has two limiting ribs (214) protruding from its bottom wall and arranged in parallel. The gap between the two limiting ribs (214) forms a limiting groove (2141), and the reset member (33) is located in the limiting groove (2141).

8. The power supply box assembly of the LED display device according to claim 5, characterized in that, The opening of the mounting recess (21) is covered with a cover plate (40). The rotating locking rod (31) and the reset member (33) are both located between the power box (20) and the cover plate (40). The cover plate (40) has a relief groove (41) on the side facing the second limiting sidewall (212) to avoid the locking pin (32).

9. The power supply box assembly of the LED display device according to claim 1, characterized in that, The operating section (315) and the locking section (316) are set at an obtuse angle. The end of the operating section (315) away from the locking section (316) forms the manual operating end (311). The locking slot (312) is set on the locking section (316). The rotation center of the rotating locking rod (31) is set at the connection between the operating section (315) and the locking section (316).

10. The power supply box assembly of the LED display device according to claim 9, characterized in that, When the rotating locking rod (31) locks the locking pin (32), the locking pin (32) and the reset member (33) are located on both sides of the locking section (316), and the reset member (33) and the operating section (315) are located on the same side of the rotation center of the rotating locking rod (31).

11. The power supply box assembly of the LED display device according to claim 10, characterized in that, The lateral distance between the upper edge of the locking latch (312) and the center of the locking pin (32) is less than the lateral distance between the lower edge of the locking latch (312) and the center of the locking pin (32).

12. The power supply box assembly of the LED display device according to any one of claims 1 to 11, characterized in that, The power supply box assembly of the LED display device further includes a positioning structure (50), which includes a positioning groove and a positioning pin (51) inserted into the positioning groove. The positioning pin (51) is disposed on one of the power supply box (20) and the fixing seat (11), and the positioning groove is disposed on the other of the power supply box (20) and the fixing seat (11).

13. An LED display device, characterized in that, The LED display device includes: Box (60); LED modules are disposed on the front side of the housing (60); The power supply box assembly of the LED display device, wherein the power supply box (20) of the power supply box assembly of the LED display device is electrically connected to the LED module, and the base (10) and the fixing seat (11) of the power supply box assembly of the LED display device are disposed on the rear side of the housing (60), and the power supply box assembly of the LED display device is the power supply box assembly of the LED display device according to any one of claims 1 to 12.

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