WO2011000174A1 - Led display screen with front door that can be opened - Google Patents

Abstract

A LED display screen includes many LED display units that are connected with each other. Each display unit includes a case (11), a front door (12) that can be opened, a LED module (13) and a sliding mechanism (14). The front door (12) is connected with the front of the case (11) and can move between an open position and a closed position. The LED module (13) is installed in the front of the front door (12). The sliding mechanism (14) is coupled to the inner surface of the case (11) and the inner surface of the front door (12). By the sliding mechanism (14) the front door (12) can be driven to move forwardly, and then rotate, so as to be opened.

Description

 LED display with front door

 Technical field

 [1] The present invention relates to an LED display screen, and more particularly to an LE composed of a plurality of LED display units

The D display, in which each display unit has an open front door, the front door can be slid forward and then turned over to be opened, which makes maintenance easier and safer.

 Background technique

 [2] Usually, the outdoor display structure takes the form of the combination of the unit cabinets, and the unit housing includes the display unit board.

The cabinet, door, power supply, control panel, power cord, fan, etc., the display unit board and the rest of the components are accessed from the rear door opening and installed in place. The unit cabinets are combined into one large screen, which needs to be connected at the rear.

 [3] In the display of this type, the rear of the installation requires a certain amount of space for maintenance. It is not suitable for installation in places where there is no rear installation space (such as wall mounting, back-to-back installation, etc.).

 [4] Take the display in this way. After maintenance, you need someone to open the door behind the screen to open. If the display position is high, it is inconvenient and unsafe for people.

[5] In the display screen of this mode, you can't see the display of the display surface after the maintenance, you need someone to inform the person who is behind the display in front of the display, to determine the cause of the fault and confirm the processing result. Very inconvenient, generally can not be completed by a single person.

[6] At present, there is also a front maintenance scheme adopted by the company to separately disassemble the display module.

Moreover, because the display module size is relatively small, the maintenance space is limited, and maintenance is inconvenient.

 In view of the above-mentioned many shortcomings of the display screen from the rear opening mode, the way of opening the door from the display surface in recent years has been rapidly developed.

 [8] According to our company's experience in producing display screens for many years, through the inspection of the mainstream display screens in the market, and through the retrieval of the world patent documents, it is concluded that the display screens currently open before are as follows:

[9] Grab the way the whole screen is opened.

[10] The front door is equipped with a display unit plate, with hinges on the top and bottom or left and right, and a locking device on the opposite side of the hinged side. [11] This method generally has a border around it.

 [12] This method allows the door to be opened and maintained from the display surface, but this method cannot be cascaded up and down to form a display with a larger display area.

[13] When used for displays that require different sizes, custom structures are required, modular combinations are not possible, and standardized production is not possible, which poses significant problems for product delivery and quality control.

[14] US Patent No. 6,065,854A discloses an example of front maintenance. The core of this patent is that the display module is connected to the base by a snap spring. The disadvantage is that the fixing strength is insufficient, and it is easy in extreme situations (such as typhoon, strong vibration, etc.). Falling off, dangerous.

 U.S. Patent No. 7,334,361 B2 discloses a method of front door opening, the main feature of which is the use of four links to effect a change in the front door from the closed state and the open state.釆Using this technical solution to achieve 吋, when the front door is opened, there will be a small amount of positional deviation, which will cause collision and interference to the upper and lower cases. Since the four-bar linkage mechanism is used for fixing, the relative positional accuracy of the front door with respect to the base is poor. It is difficult to ensure the splicing accuracy of the unit case.

 Summary of the invention

 An object of the present invention is to provide an LED display screen comprising a plurality of LED display units, wherein each display unit has an openable front door that can be slid forward and then flipped to be opened

This opening method makes maintenance easier and safer.

Another object of the present invention is to provide an LED display unit including a sliding mechanism that allows the front door to slide forward and then flip, thereby opening the front door, and the sliding mechanism also provides a stable connection between the front door and the cabinet. together.

 Another object of the present invention is to provide an LED display screen composed of a plurality of LED display units, wherein each display unit has an openable front door that can be slid forward and then turned over to be opened, however The opening and closing of each unit does not affect other adjacent units, and multiple units can be accurately connected together.

 Another object of the present invention is to provide an LED display unit including a slide mechanism that uses high-precision balls to smoothly slide the front door along the balls.

Another object of the present invention is to provide an LED display unit including a slide mechanism that uses a shaft that allows the front door to be opened and turned over to open the front door. [21] Another object of the invention is to provide an LED display screen composed of a plurality of LED display units, wherein a plurality of LED display units can be quickly assembled into LED displays of different resolutions.

 [22] Another object of the invention is to provide an LED display screen composed of a plurality of LED display units, each of which can be produced according to a certain standard, thereby ensuring that the product can be mass-produced.

 [23] In order to achieve the above object, the present invention provides an LED display unit, including:

 [24] a box,

 [25] An open front door connects to the front of the cabinet and can be moved between the open and closed positions.

[26] an LED module mounted on the front of the front door that can be opened, and

 [27] A sliding mechanism is coupled between the inner surface of the casing and the inner surface of the front door, and includes:

[28] The first connector is fixed to the inner surface of the cabinet.

[29] The second connector is attached to the inner surface of the front door.

 [30] A double-layer slider is slidably coupled to the first connector and rotatably coupled to the second connector, so that the double-layer slider can slide forward from the casing and then be opposite Rotate at the front door to open the front door.

 These objects, features, and advantages of the invention are disclosed in the Detailed Description of the Detailed Description of the Drawings.

 DRAWINGS

 1 is an external view of an LED display screen including a plurality of LED display units according to the present invention.

[33] Figure 2 is an external view of an LED display unit.

[34] Figure 3 is an enlarged view of the sliding mechanism of the LED display unit.

[35] Figure 4 is an external view of the sliding mechanism of the LED display unit with the front door closed.

[36] Figure 5 is an external view of the sliding mechanism of the LED display unit with the front door open.

[37] Figure 6 is a side view of the LED display unit with the front door open.

[38] Figure 7 is an external view of the double-layer sliding member in the closed state of the front door of the LED display unit.

[39] Figure 8 is an external view of the double-layer sliding member with the front door of the LED display unit open.

 detailed description

1 to 8 show in detail a LED display screen of the present invention, wherein the LED display screen includes a plurality of LED display units 10 connected to each other to form a large LED display screen. Each of the LEDs The display unit includes a box body 11, an openable front door 12 is coupled to the front portion of the cabinet, and is movable between an open and a closed position, an LED module 13 is mounted on the front of the openable front door, and a sliding mechanism 14 is coupled to the Between the inner surface of the casing 11 and the inner surface of the front door 12, wherein the sliding mechanism 14 can slide the front door 12 forward and then flip, thereby opening the front door.

[41] The LED module 13 is mounted on the front 12 of the front door that can be opened. When the front door 12 can be opened, the LED module 13 is in a normal use state. When the circuit and other components inside the cabinet 11 need to be installed or maintained, the operator can open the front door 12 at the front of the cabinet 11 to access the inside of the cabinet, which is very convenient and safe.

 [42] The openable front door 12 can be coupled to the case 11 by a slide mechanism 14, in other words, the slide mechanism 14 is connected between the case 11 and the front door 12, and the front door can be opened and closed so that the operator can It is very convenient and safe to be in contact with the inside of the cabinet for installation and maintenance.

 [43] The slidable mechanism 14 includes a first connecting member 141 fixed to the inner surface of the casing 11 by bolts, a second connecting member 142 fixed to the inner surface of the front door 12 by bolts, and a double-layer sliding member 143 Slidably connected to the first connecting member 141 and rotatably coupled to the second connecting member 142, so that the double-layer sliding member 143 can slide forward from the casing 11 and then rotate relative to the front door 12, Thereby the front door is opened.

 [44] The first connecting member 141 is elongated, one end of which is fixed to the inner surface of the casing 11 by bolts, and the other end extends outward. The connecting member has two guide rails 1411 respectively located at the inner edges of the long sides of the elongated connecting members, and each of the guide rails includes a plurality of balls 1412 arranged along the inner edge of the guide rails, so that the double-layer sliding members 143 can smoothly slide on the balls.

 [45] The double-layer slider 143 includes a first slider 1431 mounted between the two rails 1411 of the first connector 141 so as to be slid along the first connector 141 by the rail 1411, and the second slider 1432 Installed between the two inner edges of the first sliding member 1431, and two rails 1433 are respectively disposed at the joints of the first sliding member 1 431 and the second sliding member 1432, so that the second sliding member 1432 It is possible to slide along the first slider 1431 through the rail 1433. Each of the rails 1433 includes two rows of balls 1434 respectively located on opposite sides of the rail 143 3 between the first slider 1431 and the second slider 1432, so that the second slider 1432 can be along the first slider The 1431 slides smoothly.

[46] The second slider 1432 is rotatably coupled to the second connector 142 to be pulled away from the housing 11. After a certain distance, the front door 12 can be opened and rotated. One end of the second connecting member 1432 is fixed to the inner side of the openable front door by bolts, and the other end is rotatably connected to the second sliding member 1432. The slide mechanism 14 further includes a shaft 144 that rotatably couples the second slider 1432 and the second connector 142 such that the second slider 1432 and the second connector 142 are relatively rotatable about the shaft 144.

[47] The second slider 1432 also includes a securing device 1435 extending from a lower portion thereof. After the front door 12 is pulled a certain distance, the fixing device 1435 can fix the second slider 1432 to the edge where the front door 12 can be opened to prevent the front door from being further pulled apart.

 In other words, the openable front door 12 can prevent the second slider 1432 from being further pulled away from the casing by the fixing means 1435.

 [48] Preferably, the first slider 1431 has a length of 10 CM to 20 CM, and the front door flip angle is preferably 75 to 125 degrees.

 [49] Through the above embodiments, the object of the present invention has been fully achieved. Those skilled in the art will appreciate that the present invention includes, but is not limited to, the drawings and the details described in the Detailed Description. Any modifications that do not depart from the functional and structural principles of the invention are intended to be included within the scope of the appended claims.

Claims

Claim  [1] 1. An LED display comprising a plurality of LED display units connected to each other, each display unit comprising:  a box,  An open front door is connected to the front of the cabinet to move between the open and closed positions. An LED module is mounted on the front of the front door.  And a sliding mechanism is coupled between the inner surface of the casing and the inner surface of the front door, wherein the sliding mechanism can slide the front door forward and then flip, thereby opening the front door. [2] 2. The LED display screen according to claim 1, wherein said slidable mechanism comprises a first connecting member fixed to an inner surface of the casing, and a second connecting member fixed to an inner surface of the front door, and A double-layer slider is slidably coupled to the first connector and rotatably coupled to the second connector.  [3] The LED display screen according to claim 2, wherein said first connecting member is elongated, wherein one end is fixed to an inner surface of the casing, and the other end extends outward, and the connecting member has two The rails are respectively located at the inner edges of the long sides of the elongated connectors.  [4] The LED display panel of claim 3, wherein each of the guide rails includes a plurality of balls arranged along an inner edge of the rail.  [5] 5. The LED display of claim 4, wherein the double-layered slider comprises a first slider mounted between the two rails of the first connector, thereby passing the rail along the first The connecting members slide, the second sliding member is installed between the two inner edges of the first sliding member, and the two rails are respectively disposed at the joints of the first sliding member and the second sliding member, thereby Two sliders can slide along the first slider through the rail.  [6] 6. The LED display of claim 5, wherein each of said tracks comprises two rows of balls located on either side of the track, between the first slider and the second slider.  [7] The LED display screen of claim 6, wherein the sliding mechanism further comprises a shaft rotatably connecting the second slider and the second connector, whereby the second slider and the second The two connectors are relatively rotatable about the axis. [8] 8. The LED display of claim 7, wherein the second slider further comprises a solid The fixture extends from its lower portion.  The LED display screen according to claim 8, wherein said first slider 1431 has a length of 10 CM to 20 CM.  The LED display screen of claim 9, wherein said front door flip angle is preferably from 75 degrees to 125 degrees.