Radio frequency interface and display device

Abstract

The embodiment of the utility model relates to the technical field of display equipment, and discloses a radio frequency interface and display equipment. A radio frequency interface includes a base assembly and an interface assembly. The base assembly is used for being electrically connected with a circuit board assembly of external display equipment, and the base assembly is provided with a containing cavity. At least part of the interface assembly is arranged in the containing cavity, the interface assembly is electrically connected with the base assembly, the interface assembly can stretch out and draw back relative to the base assembly so as to be switched between the stretching-out state and the retracting state, and the interface assembly is used for being connected with an external cable in an inserted mode so as to receive cable television programs. The interface assembly is made into a telescopic structure, and when the interface assembly needs to be connected with an external input source, the interface assembly is in an extending state so that the interface assembly can be conveniently connected with an input source cable in an inserted mode; when the display device does not need to be connected with an external input source, the interface assembly is in a retracted state, the probability of dust deposition and damage caused by exposure of the interface assembly is reduced, and the attractiveness of the display device is improved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of display device, in particular to a wireless radio frequency interface and a display device. BACKGROUND

[0002] In a display device such as a display, a television, an interactive tablet, a smart screen, etc., a signal interface is usually provided, which is used for connecting with a cable of an external input source. Such a structure can enable a user to select the display device to display an image independently, or to select to connect with other input sources to project an image, thereby enhancing the diversity of use scenarios of the display device.

[0003] However, the signal interface in the existing display device is usually fixed. When a user selects to use the display device independently without connecting with an external input source, the signal interface is directly exposed, which is prone to dust accumulation, damage, etc., and also affects the aesthetic appearance of the display device. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a wireless radio frequency interface and a display device. When the signal interface is not needed to be used, the signal interface can be retracted, thereby reducing the probability of dust accumulation and damage of the signal interface, and improving the aesthetic appearance of the display device.

[0005] To solve the above technical problems, one technical solution adopted by embodiments of the present application is to provide a wireless radio frequency interface, which comprises a base assembly and an interface assembly. The base assembly is used for electrically connecting with a circuit board assembly of an external display device, and the base assembly is provided with a receiving cavity. The interface assembly is electrically connected with the base assembly and is at least partially arranged in the receiving cavity. The interface assembly is telescopically movable relative to the base assembly, so as to switch the interface assembly between an extended state and a retracted state. The length of the interface assembly exposed outside the receiving cavity when the interface assembly is in the extended state is greater than the length of the interface assembly exposed outside the receiving cavity when the interface assembly is in the retracted state. The interface assembly is used for plugging with a cable of an external environment to receive a cable television program. By making the interface assembly into a telescopic structure, when it is needed to connect with an external input source, the interface assembly is in the extended state, so as to facilitate plugging with the input source cable. When it is not needed to connect with the external input source, the interface assembly is in the retracted state, which reduces the extension length of the interface assembly, thereby reducing the probability of dust accumulation and damage of the interface assembly due to exposure, and improving the aesthetic appearance of the display device.

[0006] In some embodiments, the base assembly comprises a mounting base for fixing with the circuit board assembly and an outer cylinder fixed to the mounting base, the outer cylinder is provided with a first guide portion and a receiving cavity. The interface assembly comprises an inner cylinder provided with a second guide portion, at least a part of the inner cylinder is movably arranged in the receiving cavity, the first guide portion and the second guide portion are connected in cooperation to enable the inner cylinder to make extension and retraction movement in the receiving cavity to switch between the extended state and the retracted state. Under the cooperation of the first guide portion and the second guide portion, at least a part of the inner cylinder can be extended or retracted into the receiving cavity along the axial direction of the outer cylinder, which enhances the flexibility of the interface assembly. The first guide portion and the second guide portion are connected in cooperation, which not only has a guiding effect on the movement of the inner cylinder, but also enables the outer cylinder to lock the inner cylinder in the extended state and the retracted state.

[0007] In some embodiments, the first guide portion comprises a guide groove arranged on the side wall of the outer cylinder, the guide groove comprises a first section extending along the axial direction of the outer cylinder and a second section extending along the circumferential direction of the outer cylinder, and the end of the second section close to the cavity opening of the receiving cavity is communicated with the first section. The second guide portion comprises a guide column arranged on the side wall of the inner cylinder, the guide column is slidable along the guide groove, and when the guide column slides along the first section, the inner cylinder extends or retracts relative to the outer cylinder, and when the guide column slides along the second section, the inner cylinder rotates coaxially relative to the outer cylinder. When the guide column is located in the second section, the inner cylinder is in the extended state. Under the cooperation of the guide groove and the guide column, the movement of the inner cylinder is guided and limited by the outer cylinder. By arranging the axially extending first section, the inner cylinder can move axially to have the extended state and the retracted state, and by arranging the circumferentially extending second section close to the cavity opening, the inner cylinder can be locked axially by the outer cylinder when it is extended, which facilitates the plug-in connection of the inner cylinder with the input source cable.

[0008] In some embodiments, the guide groove further comprises a third section extending along the axial direction of the outer cylinder, the third section and the first section are respectively communicated with the two ends of the second section, and the extension length of the third section is less than that of the first section. When the guide column enters the third section, the inner cylinder is in the extended state and is locked in the circumferential direction by the outer cylinder, and when the guide column continues to move to abut against the end of the third section, the inner cylinder is locked in the axial direction and in the direction of retracting into the receiving cavity by the outer cylinder, which ensures the stability of the inner cylinder during plug-in connection.

[0009] In some embodiments, the guide groove further comprises a fourth section extending along the circumferential direction of the outer cylinder, the fourth section and the first section are communicated with the ends away from the cavity opening of the receiving cavity. By arranging the circumferentially extending fourth section communicated with the first section, when the guide column is located in the fourth section, the inner cylinder is in the retracted state and is locked in the axial direction by the outer cylinder, so that a part of the inner cylinder is kept in the receiving cavity.

[0010] In some embodiments, the base assembly further comprises a first conductive member for electrically connecting with the circuit board assembly of the display device; the interface assembly further comprises a second conductive member fixed to the inner portion of the inner cylinder, the second conductive member being movable relative to the first conductive member, and the second conductive member and the first conductive member being kept connected. In this way, the inner cylinder can also have the ability to achieve electrical connection with the circuit board assembly when in the extended state, effectively solving the problem of electrical conduction during the extension and retraction movement of the inner cylinder relative to the outer cylinder.

[0011] In some embodiments, the first conductive member comprises a main body portion and an extension portion connected with each other, the extension portion extending from the main body portion towards the cavity opening of the receiving cavity, the main body portion being located outside the receiving cavity, and the extension portion being partially located inside the receiving cavity, the main body portion being used for electrically connecting with the circuit board assembly, and the extension portion being kept connected with the second conductive member. By arranging the main body portion outside the receiving cavity, the axial length of the outer cylinder can be reduced as much as possible; and the extension portion can ensure that the first conductive member and the second conductive member are kept connected.

[0012] In some embodiments, the first guide portion is an inner thread arranged on the inner wall of the outer cylinder; and the second guide portion is an outer thread arranged on the outer wall of the inner cylinder, the outer thread being screwed with the inner thread. By the threaded connection structure, on the one hand, the stability of the movement of the inner cylinder relative to the outer cylinder can be increased, and on the other hand, the outer cylinder has a locking effect on the inner cylinder.

[0013] In some embodiments, the base assembly further comprises a fixing member connecting the outer cylinder and the mounting seat respectively to fix the outer cylinder to the mounting seat; and / or, the interface assembly further comprises a holding member arranged at the end portion of the inner cylinder, the holding member being located outside the receiving cavity. The holding member is used for being held by a user to facilitate the movement of the inner cylinder to switch the inner cylinder from the retracted state to the extended state.

[0014] To solve the above technical problems, another technical scheme adopted by the embodiments of the present application is to provide a display device, comprising a housing, a circuit board assembly, a shielding cover, and a radio frequency interface. The circuit board assembly is arranged in the housing, and the radio frequency interface is electrically connected with the circuit board assembly. The shielding cover is fixed to the housing, and covers the circuit board assembly and the radio frequency interface, the shielding cover being provided with an opening, a part of the interface assembly extending out of the shielding cover from the opening when the interface assembly is in the extended state, and all of the interface assembly being located in the shielding cover when the interface assembly is in the retracted state.

[0015] In some embodiments, the display device further comprises a cover plate which is slidingly arranged in the shielding cover, so that the opening is switched between the exposed state and the shielded state. When the cover plate opens the opening so that the opening is in the exposed state, the inner cylinder of the interface assembly can be extended out of the opening. When the inner cylinder of the interface assembly is retracted into the opening, the cover plate can close the opening so that the opening is in the shielded state. Through the above structure, when the display device needs to be connected with the external input source, the inner cylinder of the interface assembly can be extended out of the opening to facilitate the plugging with the input source cable; when the display device does not need to be connected with the external input source, the inner cylinder of the interface assembly is retracted into the opening, and the sliding cover plate closes the opening, which can reduce the probability of exposure of the interface assembly to cause dust accumulation and impact damage, and improve the appearance of the display device.

[0016] The beneficial effects of the embodiments of the present application are: the radio frequency interface of the embodiments of the present application comprises a base assembly and an interface assembly. The base assembly is used to be electrically connected with a circuit board assembly of an external display device, and the base assembly is provided with a receiving cavity. At least part of the interface assembly is arranged in the receiving cavity, the interface assembly is electrically connected with the base assembly, and the interface assembly is telescopically movable relative to the base assembly, so that the interface assembly is switched between an extended state and a retracted state. The length of the interface assembly exposed outside the receiving cavity in the extended state is greater than the length of the interface assembly exposed outside the receiving cavity in the retracted state. The interface assembly is used to be plugged with a cable from the outside. Through the telescopic structure of the interface assembly, when it is needed to be connected with an external input source, the interface assembly is in the extended state, the exposed length of the interface assembly is extended to facilitate the plugging with the input source cable; when it is not needed to be connected with the external input source, the interface assembly is in the retracted state, the exposed length of the interface assembly is shortened to reduce the probability of dust accumulation and damage of the interface assembly, and at the same time, it is beneficial to improve the appearance of the display device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application, the drawings needed in the specific embodiment description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 is a separate schematic diagram of the radio frequency interface of the embodiments of the present application;

[0019] Figure 2 is an exploded view of the radio frequency interface of the embodiments of the present application;

[0020] Figure 3 is a schematic diagram of the inner cylinder of the radio frequency interface of the embodiments of the present application in the extended state;

[0021] Figure 4 is a schematic diagram of the inner cylinder of the radio frequency interface of the embodiments of the present application in the retracted state;

[0022] Figure 5 This is a schematic diagram of a display device according to another embodiment of this application;

[0023] Figure 6 This is a schematic diagram of another embodiment of the display device of this application from another perspective. Detailed Implementation

[0024] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0027] Display devices such as monitors, televisions, interactive whiteboards, and smart screens typically include a signal interface. This interface is used to connect to an external input source via cable to receive signals from cable television programs. This structure allows users to choose whether to display images independently or to connect to other input sources for image projection, enhancing the versatility of display device usage scenarios. However, the signal interfaces in existing display devices are usually fixed. When users choose to use the display device independently without connecting to an external input source, the signal interface is directly exposed, making it prone to dust accumulation and damage, and also affecting the aesthetics of the display device.

[0028] The embodiment of the present application provides a radio frequency interface 100 for a display device 200, by making the interface assembly 20 into a telescopic structure, when the interface assembly 20 needs to be connected with an external input source, the interface assembly 20 is in an extended state, so as to be plugged with the input source cable; when the interface assembly 20 does not need to be connected with the external input source, the interface assembly 20 is in a retracted state, so as to reduce the probability of dust accumulation and damage caused by exposure of the interface assembly 20, and improve the appearance of the display device 200.

[0029] Please refer to Figure 1 and Figure 2 The radio frequency interface 100 provided by the embodiment of the present application comprises a base assembly 10 and an interface assembly 20. The base assembly 10 is used for being electrically connected with a circuit board assembly 202 of an external display device 200, and the base assembly 10 is provided with a receiving cavity 121. At least part of the interface assembly 20 is arranged in the receiving cavity 121, and the interface assembly 20 is electrically connected with the base assembly 10, so that the interface assembly 20 can be electrically connected with the circuit board assembly 202. The interface assembly 20 is used for being plugged with a signal cable of an external input source, so that the input source inputs an image signal to the display device 200. The interface assembly 20 can be telescopically moved relative to the base assembly 10, so that the interface assembly 20 is switched between the extended state and the retracted state relative to the base assembly 10. The length of the interface assembly exposed outside the receiving cavity in the extended state is greater than the length of the interface assembly exposed outside the receiving cavity in the retracted state.

[0030] As an example, as shown in Figure 3 When the interface assembly 20 is in the extended state, part of the interface assembly 20 is located outside the receiving cavity 121, so as to be plugged with the external input source, and another part of the interface assembly 20 is located in the receiving cavity 121, so that the interface assembly 20 is kept connected with the base assembly 10. As shown in Figure 4 When the interface assembly 20 is in the retracted state, the whole interface assembly 20 is located in the receiving cavity 121, and at this time, the length of the interface assembly 20 extending out of the receiving cavity 121 is 0. The above structure can minimize the length of the interface assembly 20 extending out of the receiving cavity 121, and effectively reduce the probability of dust accumulation and damage caused by exposure of the interface assembly 20. Of course, in other embodiments, when the interface assembly 20 is in the retracted state, part of the interface assembly 20 can be located in the receiving cavity 121, and part of the interface assembly 20 can be located outside the receiving cavity 121, for example, when the end of the interface assembly 20 is provided with a holding part 23, the holding part 23 is kept outside the receiving cavity 121, so as to be operated by a user.

[0031] In some embodiments, please refer to Figure 1 and Figure 2The base assembly 10 comprises a mounting base 11 and an outer cylinder 12, the mounting base 11 is used to be fixed with the circuit board assembly 202. The outer cylinder 12 is fixed to the mounting base 11, and the outer cylinder 12 is provided with a receiving cavity 121 and a first guide part. The interface assembly 20 comprises an inner cylinder 21, the inner cylinder 21 is provided with a second guide part, at least part of the inner cylinder 21 is movably arranged in the receiving cavity 121, and the first guide part and the second guide part are connected in cooperation, so that the inner cylinder 21 makes telescopic movement in the receiving cavity 121 of the outer cylinder 12, so as to switch between the extended state and the retracted state. Under the cooperation of the first guide part and the second guide part, part of the inner cylinder 21 can be extended along the axis direction of the outer cylinder 12 or retracted into the receiving cavity 121, thereby enhancing the use flexibility and stability of the interface assembly 20.

[0032] Specifically, when the display device needs to be connected with an external input source, the inner cylinder 21 is extended relative to the outer cylinder 12, so as to be plugged with the input source cable; when the display device does not need to be connected with the external input source, the inner cylinder 21 is retracted relative to the outer cylinder 12, so as to reduce the probability of dust accumulation and damage caused by direct exposure of the inner cylinder 21, and improve the aesthetic appearance of the display device.

[0033] The first guide part and the second guide part are connected in cooperation, which not only has the guiding and supporting effect on the movement of the inner cylinder 21, but also makes the outer cylinder 12 have the locking effect on the inner cylinder 21 in the extended state and the retracted state. Specifically, when the inner cylinder 21 is locked in the extended state, it is helpful for the plugging of the inner cylinder 21 with the external input source cable; when the inner cylinder 21 is locked in the retracted state, it is helpful for fixing the inner cylinder 21 relative to the outer cylinder 12, so that at least part of the inner cylinder 21 is kept in the receiving cavity 121,

[0034] It can be understood that the telescopic movement of the inner cylinder 21 relative to the outer cylinder 12 in the present application can be the translational movement of the inner cylinder 21 along the axis direction of the outer cylinder 12, can be the spiral movement of the inner cylinder 21 relative to the outer cylinder 12, or can be the combination of the translational movement and the rotational movement, as long as the inner cylinder 21 has the extended state and the retracted state relative to the outer cylinder 12.

[0035] In some embodiments, the first guiding part is an inner thread arranged on the inner wall of the outer cylinder 12, and the second guiding part is an outer thread arranged on the outer wall of the inner cylinder 21, which is screwed with the inner thread. When the inner cylinder 21 is driven to rotate relative to the outer cylinder 12, at least a part of the inner cylinder 21 can be extended out of the accommodation cavity 121 or retracted into the accommodation cavity 121 under the screwing effect of the inner thread and the outer thread. Through the threaded connection structure, on the one hand, the stability of the movement of the inner cylinder 21 relative to the outer cylinder 12 can be increased; on the other hand, in the axial direction of the outer cylinder 12, the outer cylinder 12 has an axial locking effect on the inner cylinder 21, when the inner cylinder 21 is in the extended state and stops rotating, the inner cylinder 21 is locked to facilitate the plug-in connection of the outer cylinder 12 with the input source cable, when the inner cylinder 21 is in the retracted state and stops rotating, the inner cylinder 21 is locked to be kept in the accommodation cavity.

[0036] In some embodiments, referring to Figure 2 and Figure 3 , the first guiding part includes a guiding groove 122 arranged on the side wall of the outer cylinder 12. The guiding groove 122 includes a first section 1221 extending in the axial direction of the outer cylinder 12 and a second section 1222 extending in the circumferential direction of the outer cylinder 12. The second section 1222 and the first section 1221 are communicated at the end close to the cavity opening of the accommodation cavity 121, and substantially form an “L” shape. The second guiding part includes a guiding column 211 arranged on the side wall of the inner cylinder 21. The guiding column 211 can slide along the guiding groove 122, and when the guiding column 211 slides along the first section 1221, the inner cylinder 21 is translated to extend or retract relative to the outer cylinder 12, and when the guiding column 211 slides along the second section 1222, the inner cylinder 21 is coaxially rotated relative to the outer cylinder 12.

[0037] Under the cooperation of the guiding groove 122 and the guiding column 211, the movement of the inner cylinder 21 relative to the outer cylinder 12 is guided and limited. By arranging the axially extending first section 1221, the inner cylinder 21 can have an extended state and a retracted state, and by arranging the circumferentially extending second section 1222 close to the cavity opening, the inner cylinder 21 can be locked in the axial direction by the outer cylinder 12 when extended, facilitating the plug-in connection of the inner cylinder 21 with the input source cable.

[0038] It can be understood that in some examples, the guide groove 122 on the side wall of the outer cylinder 12 can be a blind groove, that is, along the radial direction of the outer cylinder 12, the guide groove 122 does not penetrate the side wall of the outer cylinder 12; in other examples, the guide groove 122 on the side wall of the outer cylinder 12 can also be a through groove, that is, along the radial direction of the outer cylinder 12, the guide groove 122 penetrates the side wall of the outer cylinder 12. When the guide post 211 is located in the second section 1222, the inner cylinder 21 is in the extended state, and since the second section 1222 extends along the circumferential direction of the outer cylinder 12, the guide post 211 abuts against the side wall of the second section 1222 in the axial direction, so as to limit and fix the inner cylinder 21 relative to the outer cylinder 12 in the axial direction, facilitating plugging with an external input source.

[0039] In some embodiments, referring to Figure 2 and Figure 3 , the guide groove 122 further comprises a third section 1223 extending along the axial direction of the outer cylinder 12, the third section 1223 and the first section 1221 respectively communicate with two ends of the second section 1222, and the extension length of the third section 1223 is less than that of the first section 1221. Further, the circumferential width of the third section 1223 is slightly larger than the diameter of the guide post 211 or the sizes of the two are comparable, so as to minimize the gap between the guide post 211 and the third section 1223 while ensuring that the guide post 211 can slide in the third section 1223, and improve the limiting effect. By arranging the axially extending third section 1223 to communicate with the second section 1222, when the guide post 211 enters the third section 1223, the inner cylinder 21 is in the extended state, and the guide post 211 abuts against the side wall of the third section 1223 in the circumferential direction to be locked by the outer cylinder 12 in the circumferential direction, when the guide post 211 continues to move to abut against the end of the third section 1223 away from the cavity opening of the accommodation cavity 121, the guide post 211 abuts against the side wall of the third section 1223 in the axial direction, and the inner cylinder 21 is locked by the outer cylinder 12 in the axial direction and in the direction of retracting into the accommodation cavity 121, so that when the inner cylinder 21 is plugged with an external input source cable, the inner cylinder 21 is subjected to a force towards the accommodation cavity 121, and under the abutting action of the side wall of the third section 1223, the inner cylinder 21 neither retracts into the accommodation cavity 121 in the axial direction nor rotates in the circumferential direction, ensuring the stability of the inner cylinder 21 during plugging.

[0040] In some embodiments, referring to Figure 2 and Figure 4The guide groove 122 further comprises a fourth section 1224 extending along the circumferential direction of the outer cylinder 12, the fourth section 1224 and the first section 1221 communicate at the end of the cavity mouth of the accommodating cavity 121, i.e. the second section 1222 and the fourth section 1224 communicate at the two ends of the first section 1221 respectively. By setting the fourth section 1224 extending along the circumferential direction to communicate with the first section 1221, when the guide column 211 enters the fourth section 1224, the guide column 211 abuts against the sidewall of the fourth section 1224 in the axial direction, the inner cylinder 21 is in the retracted state and is locked in the axial direction by the outer cylinder 12, so that the inner cylinder 21 is kept in the accommodating cavity 121.

[0041] In some embodiments, referring to Figure 2 and Figure 3 The base assembly 10 further comprises a first conductive member 13 for electrically connecting with the circuit board assembly 202 of the display device. The interface assembly 20 further comprises a second conductive member 22 fixed to the inside of the inner cylinder 21, the second conductive member 22 is used for electrically connecting with the cable of the external input source, so as to realize the transmission of electric energy and signals between the input source and the display device 200. During the extension and retraction of the inner cylinder 21 relative to the outer cylinder 12, the second conductive member 22 can move relative to the first conductive member 13 or rotate or both, and the second conductive member 22 and the first conductive member 13 always maintain electrical connection. In this way, it can be ensured that the inner cylinder 21 can also have the ability to realize electrical connection with the circuit board assembly 202 when in the extended state, effectively solving the problem of electrical conduction during the extension and retraction of the inner cylinder 21 relative to the outer cylinder 12.

[0042] In some embodiments, referring to Figure 2 The first conductive member 13 comprises a main body part 131 and an extension part 132 connected with each other, the extension part 132 extends from the main body part 131 towards the cavity mouth of the accommodating cavity 121, the main body part 131 is located outside the accommodating cavity 121, and part of the extension part 132 is located inside the accommodating cavity 121, the main body part 131 is used for electrically connecting with the circuit board assembly 202, and the extension part 132 is connected with the second conductive member 22.

[0043] By setting the main body 131 outside the accommodating cavity 121, on the one hand, the main body 131 can avoid hindering the movement of the inner cylinder 21 in the accommodating cavity 121, and on the other hand, the axial length of the outer cylinder 12 can be reduced as much as possible to reduce the production material and manufacturing cost while meeting the telescopic movement of the inner cylinder 21 relative to the outer cylinder 12. The structure of the extension 132 added on the main body 131 can reduce the axial length of the second conductive part 22 on the inner cylinder 21, and further reduce the volume of the radio frequency interface 100. The extension 132 can ensure that the first conductive part 13 and the second conductive part 22 remain connected. It should be noted that the main body 131 of the first conductive part 13 does not necessarily need to be set outside the accommodating cavity 121. When the axial length of the outer cylinder 12 is relatively long, the main body 131 can also be set in the accommodating cavity 121 without hindering the telescopic movement of the inner cylinder 21.

[0044] In some embodiments, referring to Figure 2 and Figure 3 , the base assembly 10 further comprises a fixing part 14, which is connected to the outer cylinder 12 and the mounting base 11 respectively to fix the outer cylinder 12 to the mounting base 11. By fixing the outer cylinder 12 to the mounting base 11 through the fixing part 14, the outer cylinder 12 and the inner cylinder 21 can be movably connected.

[0045] In some embodiments, referring to Figure 2 , the interface assembly 20 further comprises a holding part 23, which is arranged at the end of the inner cylinder 21 and located outside the accommodating cavity 121. The holding part is used for a user to hold to pull the inner cylinder 21 to move, so that the inner cylinder 21 is switched from the retracted state to the extended state.

[0046] Referring to Figure 1 and Figure 5 , the application further provides a display device 200, which comprises the radio frequency interface 100 in any of the above embodiments, and further comprises a housing 201, a circuit board assembly 202, and a shielding cover 203. The circuit board assembly 202 is arranged in the housing 201, and the radio frequency interface 100 is electrically connected to the circuit board assembly 202. The shielding cover 203 is fixed to the housing 201 and covers the circuit board assembly 202 and the radio frequency interface 100. The shielding cover 203 is provided with an opening 2031. When the interface assembly 20 is in the extended state, a part of the interface assembly 20 extends out of the shielding cover 203 from the opening 2031, and when the interface assembly 20 is in the retracted state, the entire interface assembly 20 is located in the shielding cover 203. For the specific structure and functions of the radio frequency interface 100, please refer to the above embodiments, which will not be described here.

[0047] In some embodiments, referring to Figure 5 and Figure 6The display device 200 further comprises a cover plate 204 which is slidingly arranged on the shielding cover 203 to switch the opening 2031 between the exposed state and the shielded state. Specifically, when the cover plate 204 slides relative to the shielding cover 203 to open the opening 2031, the opening 2031 is in the exposed state; when the cover plate 204 slides relative to the shielding cover 203 to close the opening 2031, the opening 2031 is in the shielded state.

[0048] When the cover plate 204 opens the opening 2031 so that the opening 2031 is in the exposed state, the inner cylinder 21 of the interface assembly 20 can be extended out of the opening 2031. When the inner cylinder 21 of the interface assembly 20 is retracted into the opening 2031, the cover plate 204 can close the opening 2031 so that the opening 2031 is in the shielded state. Through the above structure, when the display device 200 needs to be connected with external input sources, the inner cylinder 21 of the interface assembly 20 can be extended out of the opening 2031 to facilitate plugging with input source cables; when the display device 200 does not need to be connected with external input sources, the inner cylinder 21 of the interface assembly 20 is retracted into the opening 2031, and the sliding cover plate 204 closes the opening 2031, which can reduce the probability of exposure of the interface assembly 20 to cause dust accumulation and impact damage, and improve the aesthetics of the display device 200.

[0049] The wireless radio frequency interface 100 of the embodiment of the present application comprises a base assembly 10 and an interface assembly 20. The base assembly 10 is used to be electrically connected with the circuit board assembly 202 of the external display device 200, and the base assembly 10 is provided with a receiving cavity 121. At least part of the interface assembly 20 is arranged in the receiving cavity 121, the interface assembly 20 is electrically connected with the base assembly 10, the interface assembly 20 is telescopically movable relative to the base assembly 10, and the interface assembly 20 is used to be plugged with cables from the outside to receive signals of cable television programs. Through the telescopic structure of the interface assembly 20, when it is needed to be connected with external input sources, the interface assembly 20 is in the extended state to facilitate plugging with input source cables; when it is not needed to be connected with external input sources, the interface assembly 20 is in the retracted state to reduce the exposed length, reduce the probability of dust accumulation and damage of the interface assembly 20, and improve the aesthetics of the display device 200.

[0050] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A radio frequency interface, characterized by The radio frequency interface comprises: a base assembly for electrically connecting with a circuit board assembly of an external display device, the base assembly being provided with a receiving cavity; an interface assembly electrically connected with the base assembly and at least partially located in the receiving cavity, the interface assembly being telescopically movable relative to the base assembly so as to switch between an extended state and a retracted state, the interface assembly having a length exposed outside the receiving cavity in the extended state greater than that in the retracted state; the interface assembly being configured to be plugged with a cable from the outside to receive cable television programs.

2. The radio frequency interface according to claim 1, wherein the base assembly comprises a mounting seat for being fixed with the circuit board assembly and an outer cylinder fixed to the mounting seat, the outer cylinder being provided with a first guide portion and the receiving cavity; the interface assembly comprises an inner cylinder provided with a second guide portion, at least a portion of the inner cylinder being movably arranged in the receiving cavity, the first guide portion and the second guide portion being cooperatively connected so as to enable the inner cylinder to telescopically move in the receiving cavity of the outer cylinder to switch between the extended state and the retracted state.

3. The radio frequency interface according to claim 2, wherein the first guide portion comprises a guide groove arranged on a side wall of the outer cylinder, the guide groove comprising a first section extending along an axial direction of the outer cylinder and a second section extending along a circumferential direction of the outer cylinder, the second section and the first section being in communication at ends close to a cavity opening of the receiving cavity; the second guide portion comprises a guide post arranged on a side wall of the inner cylinder, the guide post being slidable along the guide groove, and when the guide post slides along the first section, the inner cylinder is extended or retracted relative to the outer cylinder, and when the guide post slides along the second section, the inner cylinder is coaxially rotated relative to the outer cylinder, and when the guide post is located in the second section, the inner cylinder is in the extended state.

4. The radio frequency interface according to claim 3, wherein the guide groove further comprises a third section extending along the axial direction of the outer cylinder, the third section and the first section being in communication at two ends of the second section respectively, the third section having an extension length smaller than that of the first section, and when the guide post is located in the third section, the inner cylinder is in the extended state; and / or the guide groove further comprises a fourth section extending along the circumferential direction of the outer cylinder, the fourth section and the first section being in communication at ends away from the cavity opening of the receiving cavity, and when the guide post is located in the fourth section, the inner cylinder is in the retracted state.

5. The radio frequency interface according to claim 4, wherein the base assembly further comprises a first conductive member for electrically connecting with the circuit board assembly. ​ The interface assembly further comprises a second conductive member fixed to the inside of the inner cylinder, the second conductive member is movable relative to the first conductive member, and the second conductive member and the first conductive member are kept in electrical connection.

6. The radio frequency interface according to claim 5, wherein, The first conductive member comprises a main body part and an extension part connected to each other, the extension part extends from the main body part towards the cavity opening of the receiving cavity, the main body part is located outside the receiving cavity, and the extension part is partially located inside the receiving cavity, the main body part is used to be electrically connected to the circuit board assembly, and the extension part is kept in connection with the second conductive member.

7. The radio frequency interface according to claim 2, wherein, The first guide part is an internal thread arranged on the inner wall of the outer cylinder, and the second guide part is an external thread arranged on the outer wall of the inner cylinder, and the external thread is screwed with the internal thread.

8. The radio frequency interface according to any one of claims 2-7, wherein, The base assembly further comprises a fixing member connected to the outer cylinder and the mounting base respectively, so as to fix the outer cylinder to the mounting base. And / or, The interface assembly further comprises a holding member arranged on the end of the inner cylinder, and the holding member is located outside the receiving cavity.

9. A display device, characterized by The display device comprises a housing, a circuit board assembly, a shielding cover, and a radio frequency interface according to any one of claims 1-8, the shielding cover is fixed to the housing, the shielding cover covers the circuit board assembly and the radio frequency interface, the shielding cover is provided with an opening, when the interface assembly is in the extended state, a part of the interface assembly extends out of the shielding cover from the opening, and when the interface assembly is in the retracted state, the entire interface assembly is located inside the shielding cover. The circuit board assembly is arranged in the housing, and the radio frequency interface is electrically connected to the circuit board assembly.

10. The display device according to claim 9, wherein, The display device further comprises a cover plate slidingly arranged in the shielding cover, so as to switch the opening between an exposed state and a shielding state. When the inner cylinder of the interface assembly extends out of the opening, the cover plate can slide to shield the opening, so that the opening is in the shielding state. ​

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