Satellite television signal one-out-of-four change-over switch product structure

Abstract

The utility model relates to the technical field of satellite television change-over switches, and discloses a satellite television signal one-out-of-four change-over switch product structure which comprises a circuit PC board, a zinc alloy machine shell and a plastic protective shell. According to the application, the one-out-of-four switching circuit in the circuit PC board is the core, five ports of the one-out-of-four switching circuit are accurately connected with the input and output ports of the zinc alloy casing, the stability and safety of the circuit are ensured through riveting grounding, and the circuit plays a key role in signal processing and transmission. The zinc alloy casing provides solid physical support and a good shielding effect for the whole structure, and protects an internal circuit from external interference. The buckling design of the plastic protective shell and the zinc alloy shell ensures that the circuit PC board is prevented from being eroded by dust and moisture, saves the traditional process of using a large amount of waterproof glue, effectively reduces the cost, enables the product to have practicability and economical efficiency, realizes a stable satellite television signal switching function in a limited space, and has a wide application prospect. And the multi-satellite program receiving requirement of the user is met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of satellite television switches, in particular to a satellite television signal four-select switch product structure. BACKGROUND

[0002] In the field of satellite television signal transmission, the four-select switch product plays a key role. The working principle is that through the coaxial cable connected with the LNB high-frequency head, control instructions modulated by 22KHz frequency and alternately changed digital signals are transmitted, and the instructions are transmitted in series. The 4-way LNB signal input port circuit and the 4-way DiSEqC signal output driving switch circuit in the product work cooperatively, can select the corresponding port according to different instructions, and then transmit the satellite programs required by the satellite receiver to the receiver through the coaxial cable.

[0003] In actual application, the input port of the product is connected with the input signal satellite of the LNB, the output port is connected with the receiver, and after the satellite receiver is set, the connection and switching of different satellite program signals can be realized, different polarizations and wave bands are covered, and the same receiver can watch four satellite television programs, which effectively expands the program resources of the user.

[0004] However, the current common product structure of this kind has obvious defects, the volume is relatively large, the space requirement is high during installation and use, the waterproof glue is used in large quantity, the production cost is increased, environmental problems may be caused, the high cost limits the market popularization and popularization of the product to a certain extent, and a new product structure is urgently needed to improve these conditions. CONTENT OF THE INVENTION

[0005] The application aims to provide a satellite television signal four-select switch product structure to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the application discloses the following technical scheme: a satellite television signal four-select switch product structure, comprising:

[0007] A circuit PC board is provided with a four-select switch circuit, and the circuit has five ports;

[0008] A zinc alloy shell is provided with an input port and an output port, wherein the input port comprises a first input port, a second input port, a third input port and a fourth input port; the five ports of the circuit PC board are connected with the first input port, the second input port, the third input port, the fourth input port and the output port of the zinc alloy shell respectively, and the circuit PC board is installed in the zinc alloy shell, and the ground end surface of the circuit PC board is connected with the zinc alloy shell through riveting.

[0009] A plastic protective shell is coupled with the zinc alloy casing, and is used to protect the circuit PC board in the zinc alloy.

[0010] As preferred, the first input port, the second input port, the third input port and the fourth input port are respectively used to connect the external LNBF.

[0011] The output port is used to connect the external DVB-S receiver.

[0012] Beneficial effects: The satellite television signal four-selection switch product structure of the present application realizes a high-efficiency and compact satellite television signal four-selection switch structure by using the combination and connection mode of the circuit PC board, the zinc alloy casing and the plastic protective shell. The four-selection switch circuit in the circuit PC board is the core, and the five ports thereof are precisely connected with the input and output ports of the zinc alloy casing, and the stability and safety of the circuit are ensured by riveting grounding, thereby playing a key role in signal processing and transmission. The zinc alloy casing provides solid physical support and good shielding effect for the entire structure, and protects the internal circuit from external interference. The coupling design of the plastic protective shell and the zinc alloy casing not only protects the circuit PC board from dust and moisture erosion, but also saves the traditional process of using a large amount of waterproof glue, effectively reduces the cost, and makes the product have both practicality and economy. In the limited space, the stable satellite television signal switching function is realized, and the user's demand for receiving multiple satellite programs is met. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Fig. 1 The combination schematic diagram of the satellite television signal four-selection switch product structure provided by the embodiments of the present application;

[0015] Fig. 2 The exploded schematic diagram of the satellite television signal four-selection switch product structure provided by the embodiments of the present application.

[0016] Reference signs: 001, plastic protective shell; 002, circuit PC board; 003, zinc alloy casing; 301, first input port; 302, second input port; 303, output port; 304, third input port; 305, fourth input port. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0018] In the present document, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0019] Please refer to Figs. 1-2

[0020] The embodiment discloses a satellite television signal four-selection switch product structure, comprising:

[0021] The circuit PC board 002 is provided with a four-selection switching circuit, and the circuit has five ports;

[0022] The zinc alloy shell 003 is provided with an input port and an output port 303, wherein the input port includes a first input port 301, a second input port 302, a third input port 304 and a fourth input port 305; the five ports of the circuit PC board are connected with the first input port 301, the second input port 302, the third input port 304, the fourth input port 305 and the output port 303 of the zinc alloy shell respectively, and the circuit PC board is installed in the zinc alloy shell and connected with the zinc alloy shell through riveting pressure of the grounding end surface of the circuit PC board;

[0023] The plastic protective shell 001 is buckled with the zinc alloy shell, and the plastic protective shell is used for protecting the circuit PC board in the zinc alloy.

[0024] Based on the above, this embodiment utilizes a combination and connection method of a circuit PC board, a zinc alloy housing, and a plastic protective shell to achieve a highly efficient and compact satellite TV signal four-to-one switching switch structure. The four-to-one switching circuit within the circuit PC board is the core, its five ports precisely connected to the input and output ports of the zinc alloy housing. Riveted grounding ensures the stability and safety of the circuit, playing a crucial role in signal processing and transmission. The zinc alloy housing provides robust physical support and excellent shielding for the entire structure, protecting the internal circuitry from external interference. The snap-fit ​​design between the plastic protective shell and the zinc alloy housing protects the circuit PC board from dust and moisture corrosion while eliminating the need for extensive use of waterproof adhesives in traditional processes, effectively reducing costs. This makes the product both practical and economical, achieving stable satellite TV signal switching within a limited space and meeting users' needs for receiving multiple satellite programs.

[0025] Specifically, the first input port 301, the second input port 302, the third input port 304, and the fourth input port 305 are used to connect to the external LNBF;

[0026] Output port 303 is used to connect to an external DVB-S receiver.

[0027] Based on the above, this embodiment utilizes a port connection design to achieve efficient transmission and switching of satellite TV signals. The connections of the first input port 301, second input port 302, third input port 304, and fourth input port 305 to the external LNBF enable the reception of signals from different satellite sources, providing a rich array of input sources for signal switching. The connection of the output port 303 to the DVB-S receiver ensures that the switched satellite TV signal is accurately transmitted to the receiver, allowing users to flexibly switch between different satellite program signals using this switch product through receiver settings and controls. This enables convenient viewing of television programs from four satellites on a single receiver, greatly expanding the user's program selection range and enhancing the viewing experience.

[0028] As a specific implementation of this embodiment, when the output port 303 is connected to an external DVB-S receiver and sends a Diseqc protocol command, it transmits the command to the chip in the circuit PC board 002. The chip controls the connection between the corresponding input port and the output port 303 channel, and uses satellite TV signals to transmit to the DVB-S receiver. In this way, different commands are sent through DVB-S to select different input channels, so that a user can watch programs from four satellites.

[0029] Furthermore, the plastic protective shell 001 is fastened to the zinc alloy shell 003, protecting the circuit PC board inside the zinc alloy, providing dust and water protection, and is also aesthetically pleasing, eliminating the need for the traditional glue application method.

[0030] In summary, the satellite TV signal four-to-one selector switch product structure of this embodiment utilizes the combination and connection method of a circuit PC board, a zinc alloy housing, and a plastic protective shell to achieve a highly efficient and compact satellite TV signal four-to-one selector switch structure. The four-to-one switching circuit within the circuit PC board is the core, its five ports precisely connected to the input and output ports of the zinc alloy housing. Riveted grounding ensures the stability and safety of the circuit, playing a crucial role in signal processing and transmission. The zinc alloy housing provides robust physical support and excellent shielding for the entire structure, protecting the internal circuitry from external interference. The snap-fit ​​design between the plastic protective shell and the zinc alloy housing protects the circuit PC board from dust and moisture corrosion while eliminating the need for extensive use of waterproof adhesives in traditional processes, effectively reducing costs. This makes the product both practical and economical, achieving stable satellite TV signal switching within a limited space and meeting users' needs for receiving multiple satellite programs.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A satellite television signal four-to-one selector switch product structure, characterized in that, include: The circuit PC board (002) is equipped with a four-to-one switching circuit, which has five ports; A zinc alloy housing (003) is provided with an input port and an output port (303), wherein the input port includes a first input port (301), a second input port (302), a third input port (304), and a fourth input port (305); the five ports of the circuit PC board are respectively connected to the first input port (301), the second input port (302), the third input port (304), the fourth input port (305), and the output port (303) of the zinc alloy housing, and the circuit PC board is installed inside the zinc alloy housing, and the grounding end face of the circuit PC board is connected to the zinc alloy housing by riveting; A plastic protective case (001) is fastened to the zinc alloy housing, and the plastic protective case is used to protect the circuit PC board inside the zinc alloy housing.

2. The satellite television signal four-to-one selector switch product structure according to claim 1, characterized in that, The first input port (301), the second input port (302), the third input port (304), and the fourth input port (305) are respectively used to connect to the external LNBF; The output port (303) is used to connect to an external DVB-S receiver.

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