WO2019184534A1

WO2019184534A1 - Set top box and housing thereof

Info

Publication number: WO2019184534A1
Application number: PCT/CN2018/126031
Authority: WO
Inventors: 管凌
Original assignee: 深圳市九洲电器有限公司
Priority date: 2018-03-29
Filing date: 2018-12-31
Publication date: 2019-10-03
Also published as: CN108259955B; CN108259955A

Abstract

Embodiments of the present application relate to the field of set top boxes, and in particular to a set top box and housing thereof. The housing comprises: a first housing body, the outer surface thereof being provided a button opening; a button structure integrally provided with the first housing body, the button structure comprising a button body and a connection structure, one side of the connection structure extending to the button body, the other side of the connection structure extending to the button opening, and a gap being provided between the button structure and the button opening; and a heat-dissipating opening provided on the outer surface of the first housing body, the shape of the heat-dissipating opening being consistent with that of the gap. By means of the configuration, when it is needed to add or reduce switches on a circuit board, a button structure can be formed by performing only simple processing on a heat-dissipating opening, so that a housing can carry circuit boards of different models, thereby improving the compatibility of the housing.

Description

Set top box and its outer casing

Technical field

The present application relates to the field of set top boxes, and more particularly to a set top box and its outer casing.

Background technique

Digital Video Converter (English: Set Top Box, STB for short), commonly referred to as a set-top box or set-top box, is a device that connects a TV to an external source. It converts compressed digital signals into TV content and displays them on the TV. Signals can come from cable, satellite antennas, broadband networks, and terrestrial broadcasts. The content received by the set top box is in addition to the images and sounds that the analog TV can provide, and is capable of receiving digital content, including electronic program guides, Internet web pages, subtitles, and the like. Enables users to watch digital TV shows on existing TV sets and interactive digital entertainment, education and commercialization activities over the network.

The conventional set top box includes a casing and a control circuit component installed in the casing. The control circuit component mainly comprises a circuit board. According to the function of the set top box, corresponding buttons are arranged on the circuit board, so different functions of the set top box are different, and the circuit The number of buttons on the board is also different, and the number of button structures provided on the corresponding housing is also different. Currently, the button structure of the set top box is integrated with the outer casing.

However, in the process of implementing the present invention, the inventors have found that a set top box housing can only be equipped with one type of circuit board, mainly because the number of buttons on the circuit board is different, resulting in different design for each type of circuit board. The outer casing, the compatibility of the outer casing is poor, and the design needs to be repeated, resulting in waste of resources. Therefore, the prior art needs improvement.

Summary of the invention

The technical problem to be solved by the embodiment of the present application is to provide a casing and a set top box. The key structure can be formed by simple processing of the heat dissipation port of the casing, which can be compatible with different types of circuit boards, and does not require repeated design of the button structure.

To solve the above technical problem, one technical solution adopted by the embodiment of the present application is:

In one aspect, a housing is provided, including: a first housing having an outer surface provided with a button opening and a heat dissipation opening; and a button structure integrally disposed with the first housing, the button structure including a button body and a connection structure, One side of the connecting structure extends from the button body, and the other side of the connecting structure extends to an edge of the button opening, and a gap is formed between the button structure and an edge of the button opening, The shape of the slit coincides with the shape of the heat dissipation port.

In some embodiments, the inner surface of the button body is raised with a support structure that is located inside the outer casing.

In some embodiments, the end surface of the support structure is provided with a receiving hole.

In some embodiments, a side of the support structure and an inner surface of the button body extend with a rib structure.

In some embodiments, the thickness of the connection structure is less than the thickness of the first housing, and the outer surface of the button structure is disposed flat with the outer surface of the first housing.

In some embodiments, the outer surface of the button structure is raised with a pressing structure.

In some embodiments, the housing further includes a second housing and a lens structure, the lens structure being clamped between the first housing and the second housing; an inner surface of the lens structure is convex The first bracket and the second bracket are provided, the first bracket is provided with a first limiting hole, and the second bracket is provided with a second limiting hole; the inner surface of the first housing is convexly first a limiting pin, the first limiting pin is configured to be in a transitional engagement with the first limiting hole; a second limiting pin is protruded from an inner surface of the second housing, and the second limiting pin is used Interacting with the second limiting hole.

In some embodiments, the second housing includes a bottom wall and a side wall connected to the bottom wall; the first limiting pin is disposed on the bottom wall, and the bottom wall further has a first protrusion a boss structure, the first boss structure and the inner surface of the side wall form a buckle structure; the lens structure further includes an extension arm, and the extension arm is provided with a second boss structure, the extension arm Forming a snap structure with the second boss structure, the snap structure for engaging and engaging with the buckle structure.

In another aspect, a set top box is provided, including the outer casing as described above.

In some embodiments, the set top box further includes a control circuit component; the control circuit component includes a circuit board, the circuit board is provided with a tact switch, the tact switch includes a button; an inner surface of the button body The support has a support structure, the support structure is located inside the outer casing, and the end surface of the support structure is provided with a receiving hole; the support structure is abutted against the circuit board, and the button is received in the receiving hole.

The utility model has the beneficial effects that, in a case of the set top box and the outer casing thereof of the embodiment of the present application, the outer casing comprises: a first casing, the outer surface of which is provided with a button opening; and a button structure, Integrating with the first housing, the button structure comprises a button body and a connecting structure, one side of the connecting structure extends to the button body, and the other side of the connecting structure extends to the button port A gap is formed between the button structure and the button opening; a heat dissipation port is disposed on an outer surface of the first casing, and a shape of the heat dissipation port package is consistent with a shape of the slit. Through the above settings, when it is necessary to increase or decrease the switch on the circuit board, the key structure can be formed by simply processing the heat dissipation port, so that the outer casing can be equipped with different types of circuit boards, thereby improving the compatibility of the outer casing.

DRAWINGS

The one or more embodiments are exemplified by the accompanying drawings in the accompanying drawings, and FIG. The figures in the drawings do not constitute a scale limitation unless otherwise stated.

1 is a schematic diagram of disassembly of a set top box according to an embodiment of the present application;

Figure 2 is an enlarged view of a portion A of the set top box shown in Figure 1;

3 is a schematic structural view of a first housing of the outer casing of the set top box shown in FIG. 1;

4 is a schematic structural view of a lens structure of a casing of the set top box shown in FIG. 1.

detailed description

In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments. It is to be noted that when an element is described as being "fixed" to another element, it can be directly on the other element, or one or more central elements can be present. When an element is referred to as "connected" to another element, it can be a <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; The terms "vertical," "horizontal," "left," "right," and the like, as used in this specification, are for the purpose of illustration.

Unless otherwise defined, all technical and scientific terms used in the specification are the same meaning The terms used in the specification of the present application are for the purpose of describing the specific embodiments, and are not intended to limit the application. The term "and/or" used in this specification includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 , which is a set top box 100 according to an embodiment of the present invention. The set top box 100 includes a housing 20 and a control circuit assembly 10 mounted in the housing 20 .

The control circuit assembly 10 is used to control the operation of the set top box 100. The control circuit assembly 10 includes a circuit board 11 on which an infrared receiver 12 is disposed. The infrared receiver 12 is configured to receive an infrared signal of the remote controller, and the circuit board 11 is provided with A plurality of tact switches 13, the tact switch 13 is provided with a button 13A, and the button 13A is columnar. When the button 13A is pressed, the control circuit assembly 10 performs corresponding operations such as power on, standby, and the like.

The outer casing 20 is made of a plastic material, and the outer casing 20 includes a first casing 21, a second casing 22, and a lens structure 23. The first housing 21 is mounted on the second housing 22, and the lens structure 23 is mounted between the first housing 21 and the second housing 22.

Referring to FIGS. 1 to 3 , the outer surface of the first housing 21 is provided with a button opening 211 and a heat dissipation opening 212 .

The button 211 is provided with a button structure 213. The button structure 213 is integrated with the first housing 21. The button structure 213 includes a button body 2131 and a connecting structure 2132. One side of the connecting structure 2132 extends from the button body 2131. The other side of the structure 2132 extends over the edge of the button opening 211, and a slit 214 is disposed between the button structure 213 and the edge of the button opening 211.

The thickness of the connecting structure 2132 is smaller than the thickness of the first housing 21, and the outer surface of the button structure 213 is flush with the outer surface of the first housing 21.

It can be understood that by performing the hollowing treatment on the inner surface side of the connecting structure 2132, the key structure 213 is more easily pressed while ensuring the integrity of the first housing 21 as a whole.

A pressing structure 215 is protruded from an outer surface of the button body 2131. By pressing the pressing structure 215 on the button body 2131, the button body 2131 can be easily pressed.

It can be understood that, since the outer surface of the button structure 213 is disposed flat with the outer surface of the first housing 21, the pressing structure 215 disposed on the outer surface of the button body 2131 can facilitate the user to apply pressure to the button body 2131, which is convenient for the button. The pressing of the main body 2131.

The inner surface of the button structure 213 is convex toward the second housing 21 with a support structure 216 for abutting the tact switch 13 on the circuit board 11. The support structure 216 is a hollow columnar structure. The end surface of the support structure 216 is provided with a receiving hole 21A, and the tact switch 13 is partially received in the receiving hole 21A. The side surface of the support structure 216 and the inner surface of the button body 2131 are provided with a rib structure 217.

It can be understood that the inner surface of the button body 2131 is provided with the support structure 216, so that the tact switch 13 is more easily triggered, and the sensitivity of the button structure 213 is improved; the support structure 216 is provided with the receiving hole 21A, and the support structure 216 is improved. The reliability of the connection of the touch switch 13 is such that the support structure 216 and the tact switch 13 are less likely to be misaligned during the pressing of the button body 2131; the reinforcing rib structure 217 is disposed between the support structure 216 and the button body 2131, thereby improving The strength of the support structure 216.

The shape of the heat dissipation port 212 coincides with the shape of the slit 214.

It can be understood that when the number of the tact switches 13 on the circuit board needs to be increased or decreased, the button structure 213 can be formed by simple processing of the heat dissipation ports 212, so that one type of the casing 20 can carry different types of circuit boards 11.

The inner surface of the first housing 21 protrudes from the second housing 23 with a first limiting pin 21B and a connecting seat 218. The first limiting pin 21B is used for limiting the lens structure 25, and the connecting seat 218 is used for the second The housing 23 is fixed, and the end surface of the connecting seat 218 is provided with a connecting hole 21C.

A limit groove 21D is provided at an edge of the inner surface of the first casing 21, and the limit groove 21D is used for limiting the second casing 23.

Referring to FIGS. 1 and 3 , the second housing 22 includes a bottom wall 221 and a side wall 222 connected to the bottom wall 221 . The inner surface of the bottom wall 221 is convex toward the first housing 21 with a connecting post 22C and a second portion. The limiting pin 22E and the first boss structure 223, the connecting post 22C is used for receiving the connecting hole 21C of the connecting seat 218, and the second limiting pin 22E is used for limiting the lens structure 23, the first boss structure 223 and The inner surface of the side wall 222 is formed with a buckle structure 22F for limiting the lens structure 23, and the inner surface of the side wall 222 extends toward the first housing 21 to extend the limiting structure 22D, and the limiting structure 22D is used for It is housed in the limiting slot 21D.

Referring to FIG. 1 and FIG. 4 , the lens structure 23 is sandwiched between the first housing 21 and the second housing 22 , and the lens structure 23 is made of a transparent material. The lens structure 23 has high infrared light transmittance, and the lens structure is high. 23 is a strip-shaped sheet structure, the lens structure 23 includes an extension arm 231, the extension arm 231 is provided with a second boss structure 232, and the extension arm 231 and the second boss structure 232 form a snap structure 23F, and the buckle structure 23F The buckle structure 22F is engaged with the buckle structure.

The first surface of the lens structure 23 is embossed with a first bracket 233 and a second bracket 234. The first bracket 233 is provided with a first limiting hole 23B. The first limiting hole 23B is configured to cooperate with the first limiting pin 21B. The second bracket 233 is provided with a second limiting hole 23E for the transient engagement with the second limiting pin 22E.

When the set top box 100 is assembled, first, the circuit board 11 of the control circuit assembly 10 is mounted on the inner surface of the second housing 22; then, the lens structure 23 is mounted to the second housing 22, specifically, the lens structure 23 is positive. For the infrared receiver 12, the second limiting hole 23E of the lens structure 23 is mated with the second limiting pin 22E of the second housing 22, and at the same time, the buckle structure 23F of the lens structure 23 and the second housing 22 are buckled. The position structure 22F is snap-fitted, and the lens structure 23 is attached to the second housing 22; then, the first housing 21 is mounted, specifically, the first limiting pin 21B of the first housing 21 and the lens structure 23 A limiting hole 23B is mated, and the limiting slot 21D of the first housing 21 receives the limiting structure 22D of the second housing 22, and the connecting hole 21C of the connecting seat 218 receives the connecting post 22C, and the supporting structure of the button structure 23 The 216 is resisted by the tact switch 13 on the circuit board 11, and the button 13A on the tact switch 13 is received in the receiving hole 21A of the support structure 216.

When the set top box 100 is in use, when the button body 2131 is pressed, the support structure 216 triggers the tact switch 13, the control circuit assembly 10 performs a corresponding operation, and/or, when the infrared receiver 13 receives the infrared signal, the control circuit assembly 10 Perform the appropriate action.

Compared with the prior art, the embodiment of the present invention provides a housing 20 and a set top box 100. The first housing 21 of the housing 20 is provided with a heat dissipation opening 212 and a button structure 213, and is integrated with the first housing 21 through the button structure 213. The gap between the button structure 213 and the first housing 21 is provided with a slit 214. The heat dissipation port 212 has the same shape as the slit 214. When it is necessary to increase or decrease the tact switch 13 on the circuit board 11, only heat dissipation is required. The port 212 can be formed into a button structure 213 by simple processing, so that the outer casing 20 can be mounted with different types of circuit boards 11 to improve the compatibility of the outer casing 20.

In addition, the assembly between the lens structure 22 and the first housing 21, between the lens structure 23 and the second housing 22 is simple and reliable, the use of the screw is reduced, and the cost is reduced, and the lens structure 23 is easy to disassemble for cleaning.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation of the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of this application.

Claims

An outer casing, comprising:

a first housing having an outer surface provided with a button opening and a heat dissipation opening;

a button structure, which is integrally disposed with the first housing, the button structure includes a button body and a connecting structure, one side of the connecting structure extends from the button body, and the other side of the connecting structure extends A slit is disposed between the button structure and an edge of the button opening, and a shape of the slit is consistent with a shape of the heat dissipation opening.
The outer casing according to claim 1, wherein an inner surface of said button body has a support structure, and said support structure is located inside said outer casing.
The outer casing according to claim 2, wherein the end surface of the support structure is provided with a receiving hole.
The outer casing according to claim 2 or 3, wherein a side surface of the support structure and an inner surface of the button body extend with a rib structure.
The outer casing according to claim 1, wherein the thickness of the connecting structure is smaller than the thickness of the first casing, and an outer surface of the button structure is disposed flat with an outer surface of the first casing.
The housing according to claim 5, wherein the outer surface of the button structure has a pressing structure.
The outer casing according to any one of claims 1, 5 or 6, wherein the outer casing further comprises a second casing and a lens structure, the lens structure being clamped to the first casing and the first Between two housings;

The first surface of the lens structure has a first bracket and a second bracket, the first bracket is provided with a first limiting hole, and the second bracket is provided with a second limiting hole;

a first limiting pin is protruded from an inner surface of the first housing, and the first limiting pin is configured to be in a transitional engagement with the first limiting hole;

A second limiting pin is protruded from an inner surface of the second housing, and the second limiting pin is configured to be in a transitional engagement with the second limiting hole.
The outer casing according to claim 7, wherein said second casing comprises a bottom wall and a side wall connected to said bottom wall;

The first limiting pin is disposed on the bottom wall, and the bottom wall further has a first boss structure, and the first boss structure and the inner surface of the sidewall form a buckle structure;

The lens structure further includes an extension arm, the extension arm is provided with a second boss structure, the extension arm and the second boss structure form a snap structure, and the buckle structure is used for the buckle The bit structure is interlocked.
A set top box, comprising the outer casing of any one of claims 1, 5 to 8.
The set top box according to claim 9, wherein said set top box further comprises a control circuit assembly;

The control circuit assembly includes a circuit board, the circuit board is provided with a tact switch, and the tact switch includes a button;

The inner surface of the button body is convexly supported by a support structure, the support structure is located inside the outer casing, and the end surface of the support structure is provided with a receiving hole;

The support structure is abutted on the circuit board, and the button is received in the receiving hole.