Audio and video signal switching device

Abstract

The utility model provides an audio and video signal switching device comprising a machine body, one side of the outer surface of the machine body is fixedly provided with an audio and video conversion interface and a switch button; the protective cover is fixedly connected with the machine body, a fan is arranged in the protective cover, and one side of an air outlet of the fan faces the interior of the machine body; the fan is connected with one end of the fan connecting wire, the end, away from the fan, of the fan connecting wire is electrically connected with the temperature control switch, a cooling fin is fixed to one side of the temperature control switch, and the side, away from the temperature control switch, of the cooling fin adheres to a circuit board in the machine body; one end of the temperature control switch far away from the fan connecting line is provided with a switch connecting line, and one side of the switch connecting line far away from the temperature control switch is plugged with the switch button. Through the arrangement of the temperature control switch and the fan, when the cooling fins detect that the temperature of the heating area is too high, the temperature control switch can control the fan to be started according to the temperature change of the cooling fins, and therefore the interior of the device is effectively cooled.

Description

Technical Field

[0001] The present application relates to the technical field of audio and video signal switching, and in particular to an audio and video signal switching device. Background Art

[0002] As a professional device, the audio and video switcher is mainly responsible for switching and distributing video signals and audio signals (usually unbalanced stereo audio signals). This device has powerful functions and can flexibly switch multiple signals from the input channel to any one of the output channels. The output channels of the audio and video switcher are independent of each other and do not interfere with each other. Some high-end products even allow asynchronous control of video and audio to meet the needs of use in different scenarios.

[0003] In the application of smart conferences, audio and video signal switching devices play a vital role. However, long-term use will cause equipment fatigue, especially when the meeting time is too long, the circuit board inside the device may become hot. If the heating problem persists, it will not only affect the normal progress of the meeting, but may also cause serious consequences such as overheating and damage to the motherboard. Utility Model Content

[0004] The utility model provides an audio and video signal switching device to solve the problem of overheating of a circuit board caused by a long meeting time, which in turn affects the progress of the meeting or causes overheating and damage to the mainboard.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An audio and video signal switching device comprises: a body, an audio and video conversion interface and a switch button are fixedly arranged on one side of the outer surface of the body; a protective cover fixedly connected to the body, a fan is arranged inside the protective cover, and an air outlet side of the fan faces the inside of the body; the fan is connected to one end of a fan connecting line, and the end of the fan connecting line away from the fan is electrically connected to a temperature control switch, a heat sink is fixed to one side of the temperature control switch, and the side of the heat sink facing away from the temperature control switch is adhered to a circuit board in the body; a switch connecting line is installed on the end of the temperature control switch away from the fan connecting line, and the side of the switch connecting line away from the temperature control switch is plugged into the switch button.

[0007] In a feasible implementation, the inner wall of the machine body in the horizontal direction is symmetrically provided with: a shock-absorbing block fixedly connected to the inner wall of the machine body, a shock-absorbing sponge adhered to the end of the shock-absorbing block away from the machine body, and the end of the shock-absorbing sponge away from the shock-absorbing block clamps the components in the machine body.

[0008] In a feasible implementation, the device further includes: the outer side of the body provided with the audio and video conversion interface is also provided with: signal input and output ports and an external socket, and the signal input and output ports and the external socket are both fixedly connected to the body by bolts.

[0009] In a feasible implementation, the device further includes: a network cable port and an indicator light, and both the indicator light and the network cable port are fixedly connected to the body by bolts.

[0010] In a feasible implementation, the device further includes: a power module, which is electrically connected to the audio and video conversion interface, the switch button, the fan, the network cable port, the indicator light, the external socket, and the switch connection line.

[0011] In a feasible implementation, the fan is fixedly connected to the protective cover, and the fan is welded to one end of a fan connecting line.

[0012] The beneficial effects of the utility model are as follows: the utility model sets a fan in the protective cover, the fan is connected to one end of the fan connecting line, the end of the fan connecting line away from the fan is electrically connected to the temperature control switch, a heat sink is fixed to one side of the temperature control switch, and the side of the heat sink away from the temperature control switch is adhered to the circuit board in the machine body; a switch connecting line is installed at one end of the temperature control switch away from the fan connecting line, and the side of the switch connecting line away from the temperature control switch is plugged into the switch button. The device installs the temperature control switch on the heating area of ​​the circuit board inside the device through the heat sink. When the heat sink senses that the temperature of the heating area is too high, the temperature control switch can turn on the fan according to the temperature of the heat sink to cool down the inside of the device, which not only avoids the overheating of the circuit board affecting the meeting progress, but also avoids the burning of the main board. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 It is a structural schematic diagram of an audio and video signal switching device of the utility model;

[0015] Figure 2 The utility model is a schematic diagram of the internal structure of an audio and video signal switching device.

[0016] Description of reference numerals:

[0017] 1-body; 2-signal input and output port; 3-audio and video adapter port; 4-switch button; 5-fan; 6-protective cover; 7-network cable port; 8-indicator light; 9-external socket; 10-fan connecting wire; 11-heat sink; 12-temperature control switch; 13-switch connecting wire; 14-shock-absorbing block; 15-shock-absorbing sponge. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0019] The audio and video signal switching device for smart conferences is a modern conference equipment that integrates the processing, switching and transmission functions of audio and video signals, providing efficient and convenient communication solutions for conferences. The core technology of this device lies in its powerful signal processing and switching capabilities, which can realize the free conversion between multiple signal formats to meet the usage requirements in different scenarios. However, there are some problems with the audio and video signal switching device for smart conferences in actual applications. First of all, when the meeting is long and the use time is too long, the circuit board of the device will heat up. Long-term continuous heating will not only affect the progress of the meeting, but may even cause damage to the motherboard. Secondly, due to the change of the meeting address, the device also needs to be moved. Conference staff need to carry the device frequently to move, which will cause wear and tear of internal components due to shaking, thereby affecting the stability and service life of the device.

[0020] like Figure 1 and Figure 2 As shown, the utility model provides an audio and video signal switching device, comprising: a body 1;

[0021] A through hole is provided on the side of the body 1 for fixed installation: signal input and output port 2, audio and video conversion port 3, switch button 4, network cable port 7, indicator light 8, external socket 9. A clamp for fixing electronic components such as circuit boards is provided inside the body 1 for clamping the internal electronic components. The design of the body 1 is convenient for fixing parts. The audio and video conversion port 3 is convenient for the transfer of audio signals. The signal input and output port 2 can provide signal input and output for the device. The switch button 4 can control the opening and closing of the device. The network cable port 7 can connect the device to the network. The external socket 9 facilitates the insertion of external storage. The indicator light 8 is convenient for checking whether the device is running. If the device is running, the indicator light 8 lights up.

[0022] A protective cover 6 is installed above the body 1, and a fan 5 is installed on the inner side wall of the protective cover 6, with the air outlet of the fan 5 facing the inside of the body 1, a fan connecting line 10 is fixed on one side of the fan 5, a temperature control switch 12 is fixed at one end of the fan connecting line 10, a heat sink 11 is fixed on one side of the temperature control switch 12, and a switch connecting line 13 is installed at the other end of the temperature control switch 12, and shock-absorbing blocks 14 are symmetrically installed in the middle of the side wall in the horizontal direction inside the body 1, and the end of the shock-absorbing block 14 away from the side wall of the body 1 is fixedly connected to the shock-absorbing sponge 15.

[0023] The device further comprises: a power supply module, which is electrically connected to the audio and video conversion interface, the switch button, the fan, the network cable port, the indicator light, the external socket, and the switch connection line for supplying power.

[0024] In some feasible embodiments, the combination of the protective cover 6 and the body 1 is not limited to bolt connection, but also includes buckle and hinge connection, so as to achieve a stable combination between the protective cover and the body, ensuring that the protective cover can effectively play its due protective role during actual use.

[0025] In one embodiment of the utility model, a buckle is provided between the protective cover 6 and the body 1, one side of the buckle is fixedly connected to the protective cover 6, and the side of the buckle away from the protective cover 6 is snapped with the body 1. The provision of the buckle can make the combination between the two tighter, prevent accidental falling off during use, and facilitate the removal of the protective cover 6. The design of the buckle fully considers the stability and practicality of the structure to ensure that good working performance can be maintained in various usage environments.

[0026] In one embodiment of the utility model, the connection between the protective cover 6 and the body 1 can also be a hinge, one side of the hinge is fixedly connected to the protective cover 6, and the side of the hinge away from the protective cover 6 is fixedly connected to the body 1. The hinge can achieve a smooth opening and closing action between the protective cover 6 and the body 1, so that the user can easily operate during use. At the same time, the design of the hinge also ensures that the protective cover can fit tightly with the body in the closed state, further improving the overall protection performance.

[0027] In an embodiment of the utility model, the body 1 is bolted to the audio and video transfer interface 3, and the signal input and output port 2 is bolted to the body 1. The body 1 of the utility model is made of magnesium alloy, which has excellent electromagnetic shielding performance and can effectively isolate external electromagnetic interference. The switch button 4 is bolted to the body 1, and the fan 5 is bolted to the protective cover 6. The function of the fan 5 is to effectively dissipate the heat inside the device. The protective cover 6 is also made of magnesium alloy to provide protection for internal components. The network cable port 7 is bolted to the body 1, the indicator light 8 is bolted to the body 1, the external socket 9 is bolted to the body 1, the fan connecting line 10 is welded to the fan 5, the temperature control switch 12 is welded to the end of the fan connecting line 10 away from the fan 5, the heat sink 11 is bonded to the temperature control switch 12, the heat sink 11 can effectively absorb the temperature of the heating area, the temperature control switch 12 can sense the temperature of the heat sink 11 to turn on the fan 5, one end of the switch connecting line 13 is welded to the temperature control switch 12, and the end of the switch connecting line 13 away from the temperature control switch 12 is connected to the switch button 4, so that the temperature control switch 12 is automatically started after the device is turned on, the shock-absorbing block 14 is bolted to the body 1, the shock-absorbing sponge 15 is bonded to the shock-absorbing block 14, and the end of the shock-absorbing sponge 15 away from the shock-absorbing block 14 clamps the circuit board, and the shock-absorbing block 14 is made of magnesium alloy to ensure that the equipment has good shock resistance during transportation and installation. The shock absorbing block 14 can fix the shock absorbing sponge 15, and the shock absorbing sponge 15 can protect the internal components.

[0028] In specific implementation, the body 1 and the protective cover 6 of the utility model can also be made of other alloy materials.

[0029] In specific implementation, the heat sink 11 of the present invention is made of aluminum heat sink, and other heat-conducting metal sheets may also be used.

[0030] The working principle of the device is as follows: when using the device, first install the switch connection line 13 on the switch button 4, then install the heat sink 11 and the temperature control switch 12 above the heating area of ​​the circuit board, then connect or take out the conference to be connected through the audio and video conversion interface 3 and the signal input and output port 2, then insert the external power supply wire into the power module, and then insert the network cable into the network cable port 7 to start the meeting. When the device is heated, the heat sink 11 feels that the temperature of the heating area is too high, and the temperature control switch 12 can turn on the fan 5 according to the temperature of the heat sink 11 to cool down the inside of the device, which not only avoids the overheating of the circuit board to affect the meeting process, but also avoids the situation of the motherboard burning out. When switching between different conference rooms, the damping block 14 and the damping sponge 15 are installed on the inner wall of the body 1 to protect the components, which not only avoids the shaking of the internal components during the movement, but also avoids the situation of the device being damaged due to shaking. The working principle of the temperature control switch 12 turning on or off according to the temperature is the prior art, and the utility model will not be repeated in detail.

[0031] Through the design of the temperature control switch 12 and the fan 5, the utility model can install the temperature control switch 12 on the heating area of ​​the device circuit board through the heat sink 11. When the heat sink 11 senses that the temperature of the heating area is too high, the temperature control switch 12 can turn on the fan 5 to cool the inside of the device according to the temperature of the heat sink 11, which not only prevents the overheating of the circuit board from affecting the meeting process, but also prevents the mainboard from burning out. Through the design of the shock-absorbing block 14 and the shock-absorbing sponge 15, the utility model installs the shock-absorbing block 14 and the shock-absorbing sponge 15 on the inner wall of the body 1 to protect the components, which not only prevents the internal components from shaking during the movement, but also prevents the device from being damaged due to the shaking.

[0032] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0033] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An audio and video signal switching device, characterized in that: include: A machine body (1), an audio / video conversion interface (3) and a switch button (4) are fixedly arranged on one side of the outer surface of the machine body (1); A protective cover (6) fixedly connected to the machine body (1), a fan (5) being arranged inside the protective cover (6), and an air outlet side of the fan (5) facing the inside of the machine body (1); The fan (5) is connected to one end of a fan connecting wire (10), and the end of the fan connecting wire (10) away from the fan (5) is electrically connected to a temperature control switch (12). A heat sink (11) is fixed to one side of the temperature control switch (12), and the side of the heat sink (11) away from the temperature control switch (12) is adhered to a circuit board in the machine body (1); a switch connecting wire (13) is installed at one end of the temperature control switch (12) away from the fan connecting wire (10), and the side of the switch connecting wire (13) away from the temperature control switch (12) is plugged into the switch button (4).

2. The audio and video signal switching device according to claim 1, characterized in that: The inner wall of the machine body (1) in the horizontal direction is symmetrically provided with: a shock absorbing block (14) fixedly connected to the inner wall of the machine body (1), a shock absorbing sponge (15) adhered to one end of the shock absorbing block (14) away from the machine body (1), and one end of the shock absorbing sponge (15) away from the shock absorbing block (14) clamps the parts in the machine body (1).

3. The audio and video signal switching device according to claim 1, characterized in that: The device further comprises: a signal input / output port (2) and an external socket (9) are arranged on the outer side of the body (1) where the audio / video conversion interface (3) is arranged; the signal input / output port (2) and the external socket (9) are both fixedly connected to the body (1) by bolts.

4. The audio and video signal switching device according to claim 3, characterized in that: The device further comprises: a network cable port (7) and an indicator light (8), wherein the indicator light (8) and the network cable port (7) are both fixedly connected to the machine body (1) via bolts.

5. The audio and video signal switching device according to claim 4, characterized in that: The device further comprises: a power module, wherein the power module is electrically connected to the audio and video conversion interface (3), the switch button (4), the fan (5), the network cable port (7), the indicator light (8), the external socket (9), and the switch connection line (13).

6. The audio and video signal switching device according to claim 1, characterized in that: The fan (5) is fixedly connected to the protective cover (6), and the fan (5) is welded to one end of the fan connecting line (10).

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