CN115581013B - A waterproof back-plug structure and its matching LED display - Google Patents

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a waterproof back-inserting structure and an adaptive LED display screen thereof. According to the invention, through the arranged steering assembly, the wire and the LED can be connected in a narrow space without bending the wire, so that the problems of resistance increase, damage of an insulating layer, a wire core and a shielding layer and the like caused by excessive bending of a transmission lead are avoided, and the applicability of the device is improved.

Description

A waterproof back-plug structure and its matching LED display

technical field

The invention belongs to the technical field of connectors, and in particular relates to a waterproof back-plug structure and an adapted LED display screen.

Background technique

LED display screen is a common display screen in life. It mainly controls the display mode of light-emitting diodes and displays characters by turning on and off the LED lights. It can display various information such as text, animation, images, and videos. It is a kind of A new type of imaging electronic device made of sequentially arranged light-emitting diodes, which has the functions of decoration, publicity, information browsing, and atmosphere enhancement. Due to its high brightness, wide viewing angle, long life and other characteristics, it has been widely used in living and office, National Day celebrations, leisure plazas, large entertainment plazas, bustling business centers, advertising information release boards, commercial streets, railway stations, waiting rooms, Performing Arts Center, TV Live Broadcasting Site, Exhibition Venue, Concert Site and other places.

In order to increase the proportion of the screen and cover the wires, most of the transmission interfaces of the existing LED display screens are set on the back. When installing LED screens in a relatively tight and narrow space, the wires are often bent due to the narrow space. When the bending of the wires When the radius is less than 3 times the diameter of the wire, it will cause stress concentration at the bending point, causing cracks and breakage inside the insulation layer, and damage to the wire core and shielding layer. The resistance of the wire increases.

Contents of the invention

The purpose of the present invention is to provide a waterproof back-plug structure. Through the set steering assembly, in a narrow space, the wire and the LED can be connected without bending the wire, and the excessive bending of the transmission wire can be avoided. The problems of increased resistance, insulation layer, wire core and shielding layer damage have improved the applicability of the device.

The technical scheme that the present invention takes is specifically as follows:

A waterproof back plug-in structure, comprising a joint housing, an interface module is assembled inside the joint housing, and it is characterized in that: one end of the joint housing is provided with a plurality of steering assemblies, and the joint housing and the one closest to it Connectors are provided between the steering assembly and two adjacent steering assemblies, the steering assembly includes a first shell and a second shell, and the joint shell and the connecting piece, the first shell and the connecting piece, and Both the second shell and the connector are fixedly connected, the second shell rotates at one end of the first shell, and the end of the second shell close to the first shell is provided with a fitting end, and the The abutment end and the connecting piece are arranged obliquely in the axial direction, the inside of the first housing is fixed with a first slide plate, and the inside of the first slide plate is equipped with a plurality of first transmission elements, and the first transmission element and The interface modules are electrically connected through transmission wires, and a second sliding plate is fixed inside the second casing, and a plurality of second transmission elements are fixed inside the second sliding plate, and the second transmission elements and the first transmission elements one-to-one correspondence, and one end of the first transmission element is attached to the second transmission element;

Wherein, in the initial state, the axis lines of the plurality of connecting parts are located on the same straight line.

As a preferred solution of the waterproof back plug-in structure of the present invention, wherein: the end of the first slide plate away from the second slide plate is provided with a plurality of adjustment cavities, and the first slide plate is slidably connected to the inside of the adjustment cavity , an elastic element is assembled between the first sliding plate and the adjustment chamber.

As a preferred solution of the waterproof back plug-in structure of the present invention, wherein: the surface of the second slide is provided with a plurality of ring-shaped partitions, and the inside of the first slide is provided with ring-shaped partitions. The avoidance groove matched with the plate, the inside of the second slide plate is divided into a plurality of compartments by the annular partition plate, and a plurality of the second transmission elements are respectively fixed in the interior of the plurality of compartments, the annular An embedded groove is opened inside the partition plate, and an annular shielding part is fixed inside the embedded groove.

As a preferred solution of the waterproof back plug-in structure in the present invention, wherein: the end of the first casing close to the second casing is provided with an annular water blocking plate, and the second casing is provided with an annular A water blocking groove, a sealing element is fixed inside the annular water blocking groove, and the annular water blocking groove and the annular water blocking plate are matched, and the annular water blocking plate is inserted into the annular water blocking groove When inside, the annular water blocking plate and the sealing element fit together.

As a preferred solution of the waterproof back plug-in structure of the present invention, a damping pad is fixed on the outer side of the annular water blocking plate, and one end of the damping pad is closely attached to the second housing.

As a preferred solution of the waterproof back plug-in structure of the present invention, wherein: the friction between any one of the damping pads and its corresponding second housing is greater than that between multiple steering assemblies and multiple connectors. The sum of the gravitational forces in between.

As a preferred solution of the waterproof back-plug structure in the present invention, the angle between the fitting end and the axial direction of the connector is in the range of 0 to 90 degrees.

As a preferred solution of the waterproof back-plug structure of the present invention, wherein: the outer side of the first transmission element and the inner wall of the second transmission element are both provided with plating.

An LED display screen, suitable for a waterproof back-plug structure described in any one of the above, including a display screen assembly, the display screen assembly is provided with a second interface, and the second interface is compatible with the connector shell match.

The technical effect that the present invention obtains is:

The present invention is provided with a steering assembly in an inclined state. By rotating the second housing, the second housing and the first housing are relatively rotated, thereby changing the direction of the transmission wire. During the rotation of the second housing, the second transmission The element rotates synchronously with it, and the second transmission element and the first transmission element are always in the state of electrical connection, which will not cause the transmission wire to bend, and avoid the resistance increase caused by the excessive bending of the transmission wire, the insulation layer, the line Core and shielding layer damage and other problems, so that the device can be applied to a narrow installation space, improving the applicability of the device;

In the present invention, through the friction between the second housing and the damping pad, after the external force to rotate the second housing is removed, the steering assembly and the connecting piece will not rotate under the action of gravity, so that the device has the characteristic of self-locking, It is convenient to adjust and fix the orientation of the transmission wire;

The present invention can improve the sealing performance inside the steering assembly when the annular water blocking plate is inserted into the inside of the annular water blocking groove and bonded to the sealing element, preventing liquid and moisture-containing gas from entering the steering assembly, causing the first transmission The element and the second transmission element are oxidized and corroded, improving the waterproof performance and service life of the device.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the front view of overall structure of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the present invention;

Fig. 4 is a structural sectional view inside the steering assembly of the present invention;

Fig. 5 is a partial enlarged view of place A in Fig. 4 of the present invention;

6 is a schematic structural view of the interior of the first housing of the present invention;

Fig. 7 is a structural cross-sectional view of the interior of the first housing of the present invention;

Fig. 8 is an exploded view of the structure inside the first casing of the present invention;

Fig. 9 is a schematic structural diagram of the interior of the second housing of the present invention;

Fig. 10 is a cross-sectional view of the structure inside the second casing of the present invention;

Fig. 11 is an exploded view of the structure inside the second casing of the present invention;

Fig. 12 is a schematic diagram of the state change of the steering of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

10. Joint shell; 11. Connector; 20. First shell; 21. First slide plate; 22. First transmission element; 23. Damping pad; 24. Elastic element; 25. Ring-shaped water blocking plate; 30. The first 31. The second slide plate; 32. The second transmission element; 33. The annular partition plate; 34. The partition chamber; 35. The annular shielding member; 36. The annular water blocking groove; 37. The sealing element.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

Second, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In a preferred embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Secondly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the present invention. scope of invention protection. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

Please refer to the accompanying drawings 1 to 5, which are the first embodiment of the present invention, which provides a waterproof back-plug structure, including a joint housing 10, and the inside of the joint housing 10 is equipped with a joint module (in the figure not shown), the interface module at least includes a processing element, a metal shell, an insulating plate and a contact piece, the processing element is fixed inside the joint shell 10, the metal shell is fixed at one end of the joint shell 10, and the insulating plate is fixed inside the metal shell, The contact piece is fixed on the insulating plate, and the contact piece is connected with the processing element. One end of the joint housing 10 is provided with a plurality of steering assemblies. Between the joint housing 10 and the nearest steering assembly and two adjacent steering assemblies Both are provided with connectors 11, the steering assembly includes a first housing 20 and a second housing 30, the first housing 20 and the second housing 30 are hemispherical in shape, the first housing 20 and the second housing 30 to form a complete spherical shape, and the joint housing 10 and the connector 11, the first housing 20 and the connector 11, and the second housing 30 and the connector 11 are all fixedly connected, and the second housing 30 Rotate at one end of the first housing 20, and the second housing 30 is attached to the first housing 20, and the end of the second housing 30 close to the first housing 20 is provided with a fitting end, and the fitting end and The connecting piece 11 is arranged obliquely in the axial direction, and the inside of the first housing 20 is fixed with a first slide plate 21, and the inside of the first slide plate 21 is equipped with a plurality of first transmission elements 22, wherein the first shell closest to the processing element The first transmission element 22 inside the body 20 is electrically connected by a transmission wire, the second sliding plate 31 is fixed inside the second housing 30, and a plurality of second transmission elements 32 are fixed inside the second sliding plate 31, and the second transmission element 32 corresponds to the first transmission element 22 one by one, and one end of the first transmission element 22 is attached to the second transmission element 32;

In an initial state, the axis lines of the plurality of connectors 11 are located on the same straight line.

It is worth mentioning that the angle between the fitting end and the axial direction of the connecting piece 11 ranges from 0 to 90 degrees. In this embodiment, the angle between the fitting end and the axial direction of the connecting piece 11 is preferably 45 degrees. .

Wherein, both the outer side of the first transmission element 22 and the inner wall of the second transmission element 32 are provided with plating, and the arrangement of the plating can enhance the stability of signal transmission, slow down oxidation, reduce resistance, and improve conductivity. In this embodiment , the plating layer is preferably a gold-plated layer.

It should be noted that a pin is fixed on the end of the first sliding plate 21 close to the second sliding plate 31 , the second sliding plate 31 is rotatably connected to the pin, and the first housing 20 and the second housing 30 are rotatably connected through the pin.

Here, the interface module is an existing mature technology, which can transmit data, signals and electric energy. The interface module can be an HDMI interface, a VGA interface, a DP interface, a DVI interface or other devices for transmitting data or/and signals or/and electric energy. Any one of the joints is not specifically limited in this embodiment.

Specifically, a plurality of steering components are sequentially marked as R1, R2, ..., Rn from the direction close to the joint housing 10 to away from the connector 11, the first transmission element 22 and the processing element located in R1, the second located in R1 The transmission element 32 and the first transmission element 22 located in R2, the second transmission element 32 located in R2 and the first transmission element 22 located in R3, ... and the second transmission element 32 located in Rn-1 and located in The first transmission elements 22 in Rn are electrically connected by transmission wires. In this embodiment, the number of steering components is set to two, which can be adjusted according to actual use requirements, and the transmission wires all have signal shielding functions , to avoid signal interference between adjacent transmission wires.

Further, in this embodiment, the inclination angles and inclination directions of the two steering assemblies are the same, and this embodiment is only one of many forms, and the inclination angles and inclination directions of multiple steering assemblies can be adjusted according to actual needs. Adjustment.

In this embodiment, when the space at the back of the LED display screen is relatively tight and narrow, the second housing 30 located in R1 is rotated so that the second housing 30 rotates relative to the first housing 20, because the second housing 30 The fitting surface at one end is arranged obliquely to the axial direction of the connectors 11, so that the axis lines of the plurality of connectors 11 are no longer on the same straight line. The second housing 30 drives the second sliding plate 31 to rotate, and through the fixed connection between the second sliding plate 31 and the second transmission element 32, the second sliding plate 31 drives the second transmission element 32 to rotate. During the rotation of the second transmission element 32, The first transmission element 22 and the second transmission element 32 are always attached, so that when the second housing 30 rotates, the second transmission element 32 and the first transmission element 22 are always in a state of electrical connection, which will not cause the transmission wire to break The bending avoids the bending of the transmission wire, causing problems such as increased resistance and damage to the insulation layer, and at the same time solves the problem that the transmission wire is not easy to bend in a narrow space.

Further, the end of the first slide plate 21 away from the second slide plate 31 is provided with a plurality of adjustment cavities, the first slide plate 21 is slidably connected to the inside of the adjustment cavity, an elastic element 24 is installed between the first slide plate 21 and the adjustment cavity, and the adjustment cavity An end far away from the first transmission element 22 is provided with a threading hole, and the outer surface of the adjustment chamber is covered with a shielding element, wherein, under initial loading, the elastic element 24 is in a compressed state.

In this embodiment, since the elastic element 24 is in a compressed state, the elastic element 24 will always release the elastic potential energy, and the elastic release of the elastic element 24 acts on the first transmission element 22, and the elastic element 24 acts on the first transmission element 22. Applying a driving force so that the first transmission element 22 is always in contact with the second transmission element 32 is beneficial to improving the stability of signal or/and data or/and electric energy transmission.

Further, as shown in accompanying drawings 6 to 8, the outer side of the annular water blocking plate 25 is fixed with a damping pad 23, and one end of the damping pad 23 is closely attached to the second shell 30, and the damping pad 23 and the second shell The frictional force between the bodies 30 is denoted as F1, the sum of the gravitational forces between multiple steering assemblies and multiple connectors 11 is denoted as F2, and F1 is greater than F2.

In this embodiment, when the second housing 30 rotates relative to the first housing 20, since the damping pad 23 and the second housing 30 are closely fitted and the first housing 20 and the damping pad 23 are fixedly connected, so that The second housing 30 will generate a relatively large frictional force with the damping pad 23 when rotating, and the setting of the damping pad 23 makes the second housing 30 have a self-locking characteristic after the rotation is completed. Since F1 is greater than F2, making After the external force for rotating the second housing 30 is withdrawn, the multiple rotating components and the multiple connecting parts 11 will not rotate by themselves under the action of gravity.

Further, please refer to accompanying drawings 8 to 11, the surface of the second sliding plate 31 is evenly provided with a plurality of annular partitions 33, and the inside of the first sliding plate 21 is provided with a To avoid the groove, the inside of the second slide plate 31 is separated by a plurality of mutually independent partition cavities 34 by the annular partition plate 33, and a plurality of second transmission elements 32 are respectively fixed in the interior of the plurality of partition cavities 34, and the annular partition plate The inside of 33 is provided with an embedded groove, and an annular shield 35 is fixed inside the embedded groove.

In this embodiment, the arrangement of the annular shield 35 can separate the adjacent two first transmission elements 22 and the second transmission element 32, avoiding the two adjacent first transmission elements 22 and the second transmission element 32 interfere with each other when transmitting signals or/and data, which is beneficial to further improve the stability of transmitting signals or/and data.

Further, the first housing 20 is provided with an annular water blocking plate 25 at one end close to the second housing 30, and the second housing 30 is provided with an annular water blocking groove 36, and the inside of the annular water blocking groove 36 is fixed with a seal element 37, and the annular water blocking groove 36 is compatible with the annular water blocking plate 25, and when the annular water blocking plate 25 is inserted into the inside of the annular water blocking groove 36, the annular water blocking plate 25 and the sealing element 37 fit together, sealing The material of the element 37 is rubber or other materials with good sealing properties. In this embodiment, the material of the sealing element 37 is preferably rubber.

In this embodiment, the annular water blocking plate 25 and the sealing element 37 are attached to each other, which is conducive to improving the sealing performance inside the steering assembly, improving the waterproof performance of the device, and preventing liquid or gas with high humidity from entering the steering rotor. Internally, the first transmission element 22 and the second transmission element 32 are caused to be oxidized and corroded.

An LED display screen, suitable for a waterproof back plug-in structure of any of the above structures, includes a display screen assembly, the display screen assembly is provided with a matching interface, and the matching interface is compatible with the interface module inside the joint housing 10.

Working principle of the present invention is:

Please refer to Figure 12, when the back space of the LED display screen is tight and narrow, the second housing 30 located in R1 is rotated so that the second housing 30 rotates relative to the first housing 20, because the second housing The fitting surface at one end of 30 is arranged obliquely to the axial direction of the connector 11, so that the axis lines of multiple connectors 11 are no longer on the same straight line. The second casing 30 drives the second sliding plate 31 to rotate, and through the fixed connection between the second sliding plate 31 and the second transmission element 32, the second sliding plate 31 drives the second transmission element 32 to rotate, and the second transmission element 32 rotates , the first transmission element 22 and the second transmission element 32 are always attached, so that when the second housing 30 rotates, the second transmission element 32 and the first transmission element 22 are always in a state of electrical connection, without causing transmission wires Bending occurs, avoiding the bending of the transmission wire, causing problems such as increased resistance and damage to the insulation layer, and at the same time solving the problem that the transmission wire is not easy to bend in a narrow space. At the same time, the setting of the sealing element 37 improves the safety of the device. The waterproof performance and the sealing performance prevent liquid or moisture-containing gas from entering the interior of the steering assembly, causing oxidation and corrosion of the first transmission element 22 and the second transmission element 32 .

The above are only preferred embodiments of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, shall be implemented according to conventional means in the art.

Claims (8)

1. A waterproof back plug structure, comprising a joint housing (10), an interface module is assembled inside the joint housing (10), characterized in that: one end of the joint housing (10) is provided with a plurality of steering assemblies , connecting pieces (11) are provided between the joint housing (10) and the nearest steering assembly and two adjacent steering assemblies, and the steering assembly includes a first casing (20) and a second casing (20). The housing (30), and between the joint housing (10) and the connector (11), the first housing (20) and the connector (11), and the second housing (30) and the connector (11) Both are fixedly connected, the second housing (30) is rotated at one end of the first housing (20), and the end of the second housing (30) close to the first housing (20) is provided with a fitting end , and the fitting end and the connecting piece (11) are arranged obliquely in the axial direction, the first sliding plate (21) is fixed inside the first housing (20), and the internal assembly of the first sliding plate (21) There are a plurality of first transmission elements (22), the first transmission elements (22) and the interface module are electrically connected through transmission wires, and a second slide plate (31) is fixed inside the second housing (30), A plurality of second transmission elements (32) are fixed inside the second slide plate (31), the second transmission elements (32) correspond to the first transmission elements (22) one by one, and the first transmission elements One end of (22) is attached to the second transmission element (32); An annular water blocking plate (25) is provided at one end of the first housing (20) close to the second housing (30), and an annular water blocking groove (36) is provided on the second housing (30) , the inside of the annular water blocking groove (36) is fixed with a sealing element (37), and the annular water blocking groove (36) is compatible with the annular water blocking plate (25), and the annular water blocking plate (25) When plugged into the interior of the annular water blocking groove (36), the annular water blocking plate (25) and the sealing element (37) are attached; Wherein, in the initial state, the axis lines of the plurality of connecting parts (11) are located on the same straight line. 2. A waterproof back plug-in structure according to claim 1, characterized in that: the end of the first slide (21) away from the second slide (31) is provided with a plurality of adjustment cavities, the first slide (21) is slidably connected to the inside of the adjustment cavity, and an elastic element (24) is assembled between the first sliding plate (21) and the adjustment cavity. 3. A waterproof back plug-in structure according to claim 1, characterized in that: the surface of the second slide (31) is provided with a plurality of annular partition plates (33), and the first slide ( 21) is provided with an avoidance groove suitable for the annular partition plate (33), and the inside of the second slide plate (31) is separated by a plurality of partition cavities (34) by the annular partition plate (33), And a plurality of said second transmission elements (32) are respectively fixed inside a plurality of partition cavities (34), the inside of said annular partition plate (33) is provided with an embedded groove, and the interior of said embedded groove is fixed There is an annular shield (35). 4. A waterproof back-plug structure according to claim 1, characterized in that: a damping pad (23) is fixed on the outer side of the annular water blocking plate (25), and one end of the damping pad (23) and the second shell (30) closely fit. 5. A waterproof back plug-in structure according to claim 4, characterized in that: the friction between any one of the damping pads (23) and its corresponding second housing (30) is greater than that of multiple steering The sum of the gravitational forces between the component and the multiple connections (11). 6. A waterproof back-plug structure according to claim 1, characterized in that: the angle between the fitting end and the axial direction of the connector (11) ranges from 0 to 90 degrees. 7. A waterproof back-plug structure according to claim 1, characterized in that: both the outer side of the first transmission element (22) and the inner wall of the second transmission element (32) are provided with a coating. 8. An LED display screen, suitable for the waterproof back-plug structure described in any one of claims 1-7, characterized in that it includes a display screen assembly, and the display screen assembly is provided with a second interface , the second interface is adapted to the joint housing (10).

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