WO2021012549A1

WO2021012549A1 - Led display screen

Info

Publication number: WO2021012549A1
Application number: PCT/CN2019/120914
Authority: WO
Inventors: 陈倏贤; 何昆鹏; 吴振志; 吴涵渠
Original assignee: 深圳市奥拓电子股份有限公司
Priority date: 2019-07-23
Filing date: 2019-11-26
Publication date: 2021-01-28
Also published as: CN210349121U

Abstract

Disclosed is an LED display screen (10), comprising a lamp panel (110) and a mounting frame (120). The lamp panel (110) is fixed to the mounting frame (120), wherein a first connector (111) and a first magnetic device (113) are arranged on the lamp panel (110); a second connector (121) and a second magnetic device (123) are arranged on the mounting frame (120); the second connector (121) is arranged corresponding to the first connector (111) and can be connected to the first connector (111) in a mutual insertion manner to achieve electrical conduction; and the second magnetic device (123) is arranged corresponding to the first magnetic device (113), and when the first connector (111) is connected to the second connector (121) in an insertion manner, the first magnetic device (113) and the second magnetic device (123) are magnetically attracted to one another. The first magnetic device (113) is arranged on the lamp panel (110), the second magnetic device (123) is arranged on the mounting frame, and the positions of the first magnetic device (113) and the second magnetic device (123) are associated with a direction in which the connectors on the lamp panel (110) and the mounting frame (120) are connected in an insertion manner, such that fool-proofing can be achieved by means of the first magnetic device (113) and the second magnetic device (123), the fool-proofing strength is high, and a fool-proofing structure has low requirements for the thickness of a display screen and can be applied to a thin display screen.

Description

LED display

Technical field

This application relates to the field of LED display screens, in particular to an LED display screen.

Background technique

In the existing LED display screens, in order to avoid the wiring connection that affects the simplicity of the cabinet and the maintenance efficiency, most of the board-to-board connectors are used between the light board and the control card, which can ensure the internal simplicity and beauty, and the maintenance is convenient and quick. If the structure of the box body is made very thin, the foolproof structure of the light board needs to be made very thin, and only the structure of the board-to-board connector is left. The connector itself is small in size, resulting in a foolproof structure. The intensity is not particularly strong. When the light board is inserted upside down, the inside of the light board cannot be seen clearly, and the operator will mistakenly think that the light board is not pressed in place and slap the light board hard, which will cause damage to the foolproof structure and even destroy the entire connector The more serious structure is that if the power is turned on, the positive and negative poles of the power supply will be reversed and the light board will be damaged.

technical problem

Based on this, it is necessary to provide an LED display screen to solve the problem of insufficient strength due to the thin installation of the light board when the box structure is thin.

Technical solutions

An LED display screen, comprising a light board and a mounting frame, the light board is fixed on the mounting frame, wherein a first connector and a first magnetic device are provided on the light board, and the mounting frame is provided There are a second connector and a second magnetic device. The second connector is arranged corresponding to the first connector and can be plugged with the first connector to achieve electrical conduction. The second magnetic device is connected to the The first magnetic device is correspondingly arranged, and when the first connector is inserted into the second connector, the first magnetic device and the second magnetic device are magnetically attracted.

In one of the embodiments, the first magnetic device includes a first magnet, and the second magnetic device includes a second magnet. When the first connector is correctly inserted into the second connector, the The first magnet and the second magnet are oppositely arranged and magnetically attracted.

In one of the embodiments, the first magnetic device further includes a third magnet, and when the first connector and the second connector are inserted in the opposite direction, the third magnet and the second magnet Relatively set and magnetically repel each other.

In one of the embodiments, the second magnetic device further includes a fourth magnet, and when the first connector and the second connector are reversely inserted, the fourth magnet and the first magnet Relatively set and magnetically repel each other.

In one of the embodiments, the first magnetic device further includes a third magnet, and the second magnetic device further includes a fourth magnet; when the first connector is correctly inserted into the second connector, the The first magnet corresponds to the second magnet and attracts magnetically, and the third magnet corresponds to the fourth magnet and attracts magnetically. When the first connector and the second connector are reversed When plugging in, the fourth magnet corresponds to the first magnet and magnetically repels each other, and the third magnet corresponds to the second magnet and magnetically repels each other.

In one of the embodiments, the first magnetic device and the second magnetic device include more than two magnets. When the first connector and the second connector are reversely inserted, the first One of the magnets of a magnetic device and one of the magnets of the second magnetic device are arranged oppositely and magnetically repel each other.

In one of the embodiments, the first magnetic device and the second magnetic device are circular magnets.

In one of the embodiments, the mounting frame is provided with a groove, the lamp board is covered above the groove, and further includes a control card, the control card is arranged in the groove and fixed Connected to the mounting frame;

It also includes a guide limit rod, a base plate, and an elastic member. The guide limit rod is arranged on the control card, and the base plate is fixed on the guide limit rod and can follow the guide limit rod. Moving in the axial direction, one end of the elastic member abuts against the bottom plate, and the other end abuts against the control card, and the second connector and the second magnetic device are arranged on the substrate.

In one of the embodiments, the first magnetic device includes a first magnet and a third magnet, the second magnetic device includes a second magnet and a fourth magnet, and each first connector corresponds to a first magnet. A magnet and a third magnet, and each of the second connectors corresponds to a second magnet and a fourth magnet.

In one of the embodiments, the first connector and the first magnet and the third magnet corresponding to the first connector are in a straight line, and the first magnet and the third magnet are related to the The center point of the first connector is symmetrical;

The second connector and the second magnet and the fourth magnet corresponding to the second connector are in a straight line, and the second magnet and the fourth magnet are symmetrical about the center point of the second connector .

Beneficial effect

In the above-mentioned LED display screen, the first magnetic device is arranged on the light board and the second magnetic device is arranged on the mounting frame, and the first magnetic device and the second magnetic device are inserted into the second connector when the first connector is Magnetic attraction. When two magnetic devices attract each other, since the two magnetic devices are respectively fixed on the light board and the mounting frame, when the first connector and the second connector are inserted in the correct direction, only slightly Lifting the light board can clearly feel the resistance, and the user can feel the feedback that the plugging direction is correct, and when the plugging is reversed, the first magnetic device and the second magnetic device do not generate magnetic attraction. When there is no resistance, the user can know that the insertion direction is wrong, so that the first connector and the second connector are not forced to be inserted when the first connector and the second connector are inserted in the reverse direction, so as to avoid damage to the connector. Foolproof is achieved by the magnetic attraction of magnetic devices, and the foolproof effect is good. The magnetic attraction device can also generate magnetic attraction when the thickness is thin, and has low thickness requirements and can be applied to thinner LED displays.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of an LED display screen according to an embodiment of the application;

2 is a schematic diagram of the internal structure of an LED display screen according to an embodiment of the application;

3 is a schematic diagram of the structure of a light board of an LED display screen according to an embodiment of the application;

4 is a schematic diagram of the mating structure of the control card of the LED display screen and the second connector according to an embodiment of the application;

FIG. 5 is a schematic diagram of the insertion of the first connector and the second connector of the LED display screen according to an embodiment of the application.

Embodiments of the invention

In order to facilitate the understanding of the application, the application will be described in a more comprehensive manner with reference to the relevant drawings. The preferred embodiments of the application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the implementation described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive.

It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not mean the only implementation.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments, and is not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

In the LED display screen of each embodiment of the present application, the first magnetic device is arranged on the light board, and the second magnetic device is arranged on the mounting frame. The positions of the first magnetic device and the second magnetic device are compared with the light board and the mounting frame. The plugging direction of the upper connector is related, and the foolproof effect can be realized through the first magnetic device and the second magnetic device, and the foolproof effect is good, and the foolproof structure has a low thickness requirement, which can be applied to a thinner display screen.

The LED display screen of each embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Please refer to FIGS. 1 to 3, which exemplarily show a schematic structural diagram of an LED display screen 10 according to an embodiment of the present application. The LED display screen 10 includes a light board 110 and a mounting frame 120. The light board 110 is fixed on the mounting frame 120 , Wherein a first connector 111 and a first magnetic device 113 are provided on the light board 110, a second connector 121 and a second magnetic device 123 are provided on the mounting frame 120, and the second connector 121 corresponds to the first connector 111 The first magnetic device 113 and the second magnetic device 123 are arranged correspondingly, and when the first connector 111 is inserted into the second connector 121, the first magnetic device The device 113 magnetically attracts the second magnetic device 123.

By arranging the first magnetic device 113 on the lamp board 110 and the second magnetic device 123 on the mounting frame 120, the first magnetic device 113 and the second magnetic device 123 are plugged into the second connection at the first connector 111 When the two magnetic devices are attracted to each other, since the two magnetic devices are respectively fixed on the light board 110 and the mounting frame 120, the first connector 111 and the second connector 121 are inserted into each other. When the direction is correct, you only need to lift the light board 110 slightly, you can obviously feel the resistance, and the user can feel the feedback that the plugging direction is correct, and when the plugging is reversed, the first magnetic device 113 and the second magnetic device 123 does not generate magnetic attraction, and there is no resistance when lifting the light board 110, and the user can know that the plugging direction is wrong, so that the first connector will not be forced to be used when the first connector 111 and the second connector 121 are plugged in reverse. 111 and the second connector 121 are plugged in to avoid damage to the connector. Foolproofing is achieved by the magnetic attraction of the magnetic devices, and the foolproof effect is good. The magnetic attraction device can also generate magnetic attraction when the thickness is thin, and has a lower thickness requirement, which can be applied to a thinner LED display 10.

1 and 2, each mounting frame 120 can fix one or more light boards 110, each light board 110 can be provided with a first magnetic device 113, and a second magnetic device 123 on the mounting frame 120 The number of is adapted to the number of second magnetic devices 123.

Referring to Figures 3 to 5, in some embodiments, the first magnetic device 113 includes a first magnet 1131, and the second magnetic device 123 includes a second magnet 1231. When the first connector 111 and the second connector 121 are correctly inserted When connected, the first magnet 1131 and the second magnet 1231 are arranged oppositely and magnetically attracted. When the first connector 111 and the second connector 121 are inserted in the opposite direction, the first magnet 1131 and the second magnet 1231 are misaligned with each other. Does not produce magnetic force.

In other embodiments, the first magnetic device 113 may further include a third magnet 1133. When the first connector 111 and the second connector 121 are inserted in the opposite direction, the third magnet 1133 and the second magnet 1231 are arranged opposite to each other. Magnetic repulsion. Since the first magnet 1131 and the third magnet 1133 are provided on the lamp board 110, and the first magnet 1131 is magnetically attracted when the second magnet 1231 on the mounting frame 120 is opposite, the third magnet 1133 is magnetic when the second magnet 1231 is opposite Repel each other, so that when the first connector 111 and the second connector 121 are correctly inserted, the first magnet 1131 and the second magnet 1231 are magnetically attracted, and the third magnet 1133 and the second magnet 1231 are reversely inserted. Magnetic repulsion, while using magnets to prevent foolishness, if the first connector 111 and the second connector 121 are plugged in reverse, the magnetic force between the third magnet 1133 and the second magnet 1231 can prevent the first connection The connector 111 is plugged into the second connector 121, and when the light board is slapped forcibly, it can play a role of resistance to avoid damage to the connector.

In other embodiments, the second magnetic device 123 may further include a fourth magnet 1233. When the first connector 111 and the second connector 121 are inserted in the opposite direction, the fourth magnet 1233 and the first magnet 1131 are arranged oppositely and Magnetic repulsion. At this time, through the principle of magnetic repulsion between the fourth magnet 1233 and the first magnet 1131, the first connector 111 and the second connector 121 can also be prevented when the first connector 111 and the second connector 121 are reversely inserted. Forcibly insert to avoid damage to the connector.

Referring to FIG. 5, in a specific embodiment, the first magnetic device 113 may include a first magnet 1131 and a third magnet 1133, and the second magnetic device 123 may include a second magnet 1231 and a fourth magnet 1233. When the connector 111 is correctly inserted into the second connector 121, the first magnet 1131 corresponds to the second magnet 1231 and magnetically attracts, and the third magnet 1133 corresponds to the fourth magnet 1233 and magnetically attracts, which is beneficial to the light board 110. The installation is fixed. And magnets can be used to prevent foolishness: when the first connector 111 and the second connector 121 are plugged in opposite directions, the fourth magnet 1233 corresponds to the first magnet 1131 and magnetically repels each other, and the third magnet 1133 and the second The magnets 1231 correspond to each other and magnetically repel each other. When the light board 110 is close to the mounting frame 120, magnetic repulsion is generated between the fourth magnet 1233 and the first magnet 1131, and between the third magnet 1133 and the second magnet 1231, and the light board 110 The closer to the mounting frame 120, the greater the repulsive force, which can prevent the insertion of the first connector 111 and the second connector 121.

The first magnetic device 113 and the second magnetic device 123 may be circular magnets. In a specific embodiment, the first magnet 1131, the second magnet 1231, the third magnet 1133, and the fourth magnet 1233 are all circular magnets. The circular magnets have an automatic centering effect, which can make the first connector 111 and the The second connector 121 is automatically aligned.

In the embodiment shown in FIG. 5, each first connector 111 corresponds to a first magnet 1131 and a third magnet 1133, and each second connector 121 corresponds to a second magnet 1231 and a fourth magnet 1233. . It can be understood that in other embodiments, the first magnetic device 113 and the second magnetic device 123 may also include more than two magnets. When the first connector 111 and the second connector 121 are plugged in opposite directions, the first One of the magnets of the magnetic device 113 and one of the magnets of the second magnetic device 123 are arranged oppositely and magnetically repel each other.

It can be understood that when the first magnetic device 110 and the second magnetic device 120 achieve magnetic attraction, if one of the first magnetic device 110 and the second magnetic device 120 is a magnet, the other is made of a material that can be attracted to the magnet. (Such as metallic iron), the same effect can also be achieved. When the first magnetic device 110 and the second magnetic device 120 in the corresponding position need to be foolproof by magnetic repulsion, both the first magnetic device 110 and the second magnetic device 120 need to be magnets.

Referring to FIG. 2, a groove 120 a may be provided on the mounting frame 120, the lamp board 110 is covered above the groove 120 a, and the second connector 121 is arranged in the groove 120 a. Specifically, the LED display screen 10 may also include a control card 130. The control card 130 is arranged in the groove 120a and fixedly connected to the mounting frame 120. The second connector 121 is arranged on the control card 130 and is electrically connected to the control card 130. connection.

4 and 5, in one or more embodiments, the LED display 10 may further include a guide limit rod 140, a substrate 150 and an elastic member 160. The guide limit rod 140 is disposed on the control card 130, and the substrate 150 is fixed on the guide limit rod 140 and can move along the axial direction of the guide limit rod 140. One end of the elastic member 160 abuts against the base plate 150, the other end abuts against the control card 130, the second connector 121 and the first The two magnetic devices 123 are disposed on the substrate 150. Therefore, when the first connector 111 and the second connector 121 are reversely inserted, if there is a magnetic repulsive force between the first magnetic device 113 and the second magnetic device 123, under the action of the repulsive force, the substrate 150 Move along the axial direction of the guide limit rod 140 toward the direction close to the control card 130 to increase the distance between the substrate 150 and the light board 110, thereby increasing the distance between the first connector 111 and the second connector 121 , To avoid further insertion of the first connector 111 and the second connector 121 to prevent damage to the connector.

Please refer to FIG. 5, the elastic member 160 can be sleeved on the guide limit rod 140. It can be understood that the elastic member 160 only needs to be located between the substrate 150 and the control card 130 to provide a buffer for the substrate 150 to achieve corresponding functions.

In the embodiment shown in FIG. 5, the second magnetic device 123 includes a second magnet 1231 and a fourth magnet 1233, a second connector 121 and a second magnet 1231 and a fourth magnet 1233 corresponding to the second connector 121. It is substantially in a straight line, and the second magnet 1231 and the fourth magnet 1233 are symmetrical about the center point of the second connector 121. It can be understood that the first connector 111 is arranged opposite to the second connector 121, the first magnet 1131 is arranged opposite to the second magnet 1231, and the third magnet 1133 is arranged opposite to the fourth magnet 1233, then the first connector 111 and its corresponding The first magnet 1131 and the third magnet 1133 are also substantially in a straight line, and the first magnet 1131 and the third magnet 1133 are symmetrical about the center point of the first connector 111, so that the first connector 111 is connected to the second When the connector 121 is plugged in, it can better realize the alignment of the first magnetic device 113 and the second magnetic device 123, thereby generating a magnetic attraction between the first magnetic device 113 and the second magnetic device 123, or in the insertion process. When the connection is reversed, a magnetic repulsion force is generated between the first magnetic device 113 and the second magnetic device 123.

Taking the embodiment shown in FIG. 5 as an example, when assembling the light board 110, first align the four corners of the light board 110, and after the alignment, if the first connector 111 and the second connector 121 are inserted If the connection direction is correct, the first magnet 1131 is opposite to the second magnet 1231, and the third magnet 1133 is opposite to the fourth magnet 1233. Since the first magnet 1131 and the second magnet 1231 are magnetically attracted, the third magnet 1133 and the fourth magnet 1233 Magnetic attraction. Therefore, when installing the light board 110, you can clearly feel the magnetic attraction to the light board 110. When the magnets are all circular magnets, it has an automatic centering effect. The first connector 111 is connected to the second The device 121 is automatically centered, and the light board 110 is gently pressed, so that the first connector 111 and the second connector 121 are tightly connected, and the fixing of the light board 110 is completed. When the first connector 111 and the second connector 121 are inserted in opposite directions, the first magnet 1131 is opposite to the fourth magnet 1233, the third magnet 1133 is opposite to the second magnet 1231, and the first magnet 1131 is opposite to the fourth magnet 1231. The magnetic repulsion force is generated between the magnets 1233, the third magnet 1133 and the second magnet 1231. The surfaces of the first magnet 1131 and the fourth magnet 1233, and the third magnet 1133 and the second magnet 1231 cannot be attached to each other. At the same time, the magnetic repulsion force Under the action of, the substrate 150 drives the second connector 121 to move closer to the control card 130. Even if the lamp board 110 is covered on the mounting frame 120, the distance between the first connector 111 and the second connector 121 will be Enlarged, without forcibly inserting the first connector 111 and the second connector 121, avoiding damage to the connector when the light board 110 is forcibly tapped, and effectively protecting the first connector 111 and the second connector 121.

In the above-mentioned LED display screen 10, the first magnetic device 113 is arranged on the light board 110, the second magnetic device 123 is arranged on the mounting frame 120, and the first magnetic device 113 and the second magnetic device 123 are connected to the first connector 111. When plugged into the second connector 121, they attract each other magnetically. When the two magnetic devices are attracted to each other, since the two magnetic devices are respectively fixed on the light board 110 and the mounting frame 120, the first connector 111 and the second When the plugging direction of the connector 121 is correct, you only need to lift the light board 110 slightly, you can obviously feel the resistance, and the user can feel the feedback that the plugging direction is correct, and when the plugging is reversed, the first magnetic device 113 and the second magnetic device 123 do not generate magnetic attraction, there is no resistance when lifting the light board 110, and the user can know that the plugging direction is wrong, so that the first connector 111 and the second connector 121 are not plugged in reverse. The first connector 111 and the second connector 121 are forced to plug in to avoid damage to the connector. The foolproof effect is achieved by the magnetic attraction of the magnetic devices, and the foolproof effect is better. The magnetic attraction device can also generate magnetic attraction when the thickness is thin, and has a lower thickness requirement, which can be applied to a thinner LED display 10.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express a few implementation modes of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of utility model patents. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

An LED display screen, characterized in that it comprises a light board and a mounting frame, the light board is fixed on the mounting frame, wherein the light board is provided with a first connector and a first magnetic device, the The mounting frame is provided with a second connector and a second magnetic device. The second connector is arranged corresponding to the first connector and can be plugged with the first connector to achieve electrical conduction. The magnetic device is arranged corresponding to the first magnetic device, and when the first connector is inserted into the second connector, the first magnetic device and the second magnetic device are magnetically attracted.
The LED display screen of claim 1, wherein the first magnetic device includes a first magnet, and the second magnetic device includes a second magnet. When the first connector is connected to the second magnet, When the connector is correctly inserted, the first magnet and the second magnet are arranged oppositely and magnetically attract each other.
The LED display screen of claim 2, wherein the first magnetic device further comprises a third magnet, and when the first connector and the second connector are reversely plugged in, the first magnetic device The three magnets are arranged opposite to the second magnet and magnetically repel each other.
The LED display screen of claim 2, wherein the second magnetic device further comprises a fourth magnet, and when the first connector and the second connector are reversely plugged in, the first The four magnets are arranged opposite to the first magnet and magnetically repel each other.
The LED display screen of claim 2, wherein the first magnetic device further comprises a third magnet, the second magnetic device further comprises a fourth magnet; the first connector is correctly inserted into the In the second connector, the first magnet corresponds to the second magnet and attracts magnetically, and the third magnet corresponds to the fourth magnet and attracts magnetically. When the first connector When the second connector is reversely inserted, the fourth magnet corresponds to the first magnet and magnetically repels each other, and the third magnet corresponds to the second magnet and magnetically repels each other.
The LED display screen of claim 1, wherein the first magnetic device and the second magnetic device comprise more than two magnets, and when the first connector and the second connector are reversed When plugging in, one of the magnets of the first magnetic device and one of the magnets of the second magnetic device are arranged opposite and magnetically repel each other.
The LED display screen of claim 1, wherein the first magnetic device and the second magnetic device are circular magnets.
The LED display screen according to claim 1, wherein the mounting frame is provided with a groove, the lamp board is covered above the groove, and further comprises a control card, the control card is arranged on In the groove and fixedly connected to the mounting frame;

It also includes a guide limit rod, a base plate, and an elastic member. The guide limit rod is arranged on the control card, and the base plate is fixed on the guide limit rod and can follow the guide limit rod. Moving in the axial direction, one end of the elastic member abuts against the bottom plate, and the other end abuts against the control card, and the second connector and the second magnetic device are arranged on the substrate.
8. The LED display screen of claim 8, wherein the first magnetic device includes a first magnet and a third magnet, and the second magnetic device includes a second magnet and a fourth magnet, each of the A connector corresponds to a first magnet and a third magnet, and each of the second connectors corresponds to a second magnet and a fourth magnet.
The LED display screen of claim 9, wherein the first connector and the first magnet and the third magnet corresponding to the first connector are in a straight line, and the first magnet and The third magnet is symmetrical about the center point of the first connector;

The second connector and the second magnet and the fourth magnet corresponding to the second connector are in a straight line, and the second magnet and the fourth magnet are symmetrical about the center point of the second connector .