Anti-interference communication port module and electric appliance device

Abstract

The utility model discloses an anti-interference communication port module and an electric appliance device, comprising a first connection port, a second connection port, a first switch assembly and a second switch assembly, the first connection port is provided with a first pin, and the second connection port is provided with a second pin. The first connecting port and the second connecting port can be connected with each other, the first pin and the second pin are in conductive contact to realize signal transmission, the input end of the first switch assembly is connected with first equipment, and the output end of the first switch assembly is connected with the first pin; the first switch assembly can form and output a first level signal to the first pin according to a first signal output by first equipment, the input end of the second switch assembly is connected with the second pin, the output end of the second switch assembly is connected with second equipment, and the second switch assembly can form and output a second signal according to the first level signal; the design has good anti-impact and anti-interference capabilities, and the signal transmission performance is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical accessories, and in particular to an anti-interference communication port module and an electrical device. Background Art

[0002] In household appliances, control signals or detection signals are often transmitted between devices through communication ports. In order to improve the hot plugging and electrostatic protection, a resistor-capacitor circuit is usually set at the communication port. Although the resistor-capacitor circuit has a simple structure and low cost, its anti-impact and anti-interference capabilities are limited and cannot meet the application requirements of today's smart homes. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an anti-interference communication port module and an electrical device, which have good anti-impact and anti-interference capabilities and stable and reliable signal transmission performance.

[0004] According to an embodiment of the first aspect of the utility model, an anti-interference communication port module includes: a first connection port, provided with a first pin; a second connection port, provided with a second pin, the first connection port and the second connection port can be connected to each other and the first pin and the second pin are in conductive contact to achieve signal transmission; a first switch component, the input end of the first switch component is used to connect to a first device, the output end of the first switch component is connected to the first pin, the first device outputs a first signal, the first switch component can form and output a first level signal to the first pin according to the first signal; a second switch component, the input end of the second switch component is connected to the second pin, the output end of the second switch component is used to connect to the second device, the second switch component can form and output a second signal according to the first level signal, wherein the second signal is consistent with the first signal.

[0005] According to an embodiment of the utility model, an anti-interference communication port module has at least the following beneficial effects:

[0006] The utility model discloses an anti-interference communication port module, in which a first signal outputted from a first device is first processed by a first switch component to form a first level signal, which is then transmitted to a second switch component through a first pin and a second pin, and then the first level signal is restored by the second switch component to form a second signal consistent with the first signal and provided to a second device. By utilizing the on and off characteristics of the switch component, the impedance is relatively high, and instantaneous impact signals cannot be transmitted through the switch component, thereby preventing interferences such as fast transient pulse groups and lightning surges from being transmitted through the anti-interference communication port module. The utility model discloses an anti-interference communication port module, in which a first signal is first processed by a first switch component to form a first level signal, and then the first level signal is restored by the second switch component to form a second signal consistent with the first signal and provide to the second device. The utility model discloses an anti-interference communication port module, in which a first signal is first processed by a first switch component to form a first level signal, and then the first level signal is restored by the second switch component to form a second signal consistent with the first signal, and then the second signal is provided to the second device. By utilizing the on and off characteristics of the switch component, the impedance is relatively high, and instantaneous impact signals cannot be transmitted through the switch component, thereby preventing interferences such as fast transient pulse groups and lightning surges from being transmitted through the anti-interference communication port module. The utility model discloses an anti-interference communication port module, in which a first signal is first processed by a first switch component to form a first level signal, and then the first level signal is provided to the second device.

[0007] According to some embodiments of the utility model, the first connection port is also provided with a third pin, and the second connection port is also provided with a fourth pin, and the third pin and the fourth pin are in conductive contact to realize signal transmission; the anti-interference communication port module also includes a third switch component and a fourth switch component, the input end of the third switch component is used to connect to the second device, the output end of the third switch component is connected to the fourth pin, the second device outputs a third signal, the third switch component can form and output a second level signal to the third pin according to the third signal, the input end of the fourth switch component is connected to the fourth pin, the output end of the fourth switch component is used to connect to the first device, and the fourth switch component can form and output a fourth signal according to the second level signal, wherein the fourth signal is consistent with the third signal.

[0008] According to some embodiments of the present utility model, the first switch component includes a first voltage divider unit and a first semiconductor switch tube Q1, the first voltage divider unit is connected to a power supply, the input end of the first voltage divider unit is connected to a first device, the output end of the first voltage divider unit is connected to a controlled pole of the first switch tube Q1, the input pole of the first switch tube Q1 is connected to a first pin, and the output pole of the first switch tube Q1 is grounded.

[0009] According to some embodiments of the present invention, the first voltage dividing unit includes a resistor R6, a resistor R7 and a resistor R8, one end of the resistor R6 is connected to the power supply, the other end of the resistor R6 is respectively connected to the first device and one end of the resistor R7, the other end of the resistor R7 is respectively connected to the controlled electrode of the first switch tube Q1 and one end of the resistor R8, and the other end of the resistor R8 is grounded.

[0010] According to some embodiments of the present invention, the first switch component further includes a first filtering unit, and the input pole of the first switch tube Q1 is connected to the first pin through the first filtering unit.

[0011] According to some embodiments of the present invention, the second switch component includes a second switch tube Q2 and a second voltage divider unit, the controlled pole of the second switch tube Q2 is connected to the second pin, the input pole of the second switch tube Q2 is connected to the input end of the second voltage divider unit, the output pole of the second switch tube Q2 is grounded, the second voltage divider unit is connected to a power supply, and the output end of the second voltage divider unit is connected to a second device.

[0012] According to some embodiments of the present invention, the second voltage dividing unit includes a resistor R11, a resistor R12 and a capacitor C7, one end of the resistor R12 is connected to the power supply, the other end of the resistor R12 is respectively connected to the input pole of the second switch tube Q2, one end of the resistor R11 and one end of the capacitor C7, the other end of the resistor R12 is connected to the second device, and the other end of the capacitor C7 is grounded.

[0013] According to some embodiments of the present invention, the second switch component further includes a second filtering unit, and the second pin is connected to the controlled electrode of the second switch tube Q2 through the second filtering unit.

[0014] According to some embodiments of the present invention, the second switch component also includes a resistor R9 and a resistor R10, one end of the resistor R9 is connected to the second pin, the other end of the resistor R9 is respectively connected to one end of the resistor R10 and the controlled electrode of the second switch tube Q2, and the other end of the resistor R10 is grounded.

[0015] According to the second aspect of the present invention, the electrical device comprises a controller, a display and an anti-interference communication port module as disclosed in any of the above embodiments, wherein the controller is connected to the input end of the first switch component, and the display is connected to the output end of the second switch component.

[0016] The electrical device according to the embodiment of the utility model has at least the following beneficial effects:

[0017] The utility model electric appliance device has a controller that sends a control signal to a display through an anti-interference communication port module, has good anti-impact and anti-interference capabilities, and has stable and reliable signal transmission performance.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a principle structure diagram of one embodiment of the communication port module of the utility model;

[0021] Figure 2 is a circuit diagram of a first switch component and a fourth switch component;

[0022] Figure 3 Schematic diagram of a circuit of the second switch component and the third switch component.

[0023] Reference numerals:

[0024] First connection port 100; first pin 110; third pin 120; second connection port 200; second pin 210; fourth pin 220; first switch component 300; first voltage divider unit 310; first filter unit 320; second switch component 400; second voltage divider unit 410; second filter unit 420; third switch component 500; fourth switch component 600. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-3, according to the first aspect of the present invention, an anti-interference communication port module of an embodiment, includes a first connection port 100, a second connection port 200, a first switch component 300 and a second switch component 400, the first connection port 100 is provided with a first pin 110, the second connection port 200 is provided with a second pin 210, the first connection port 100 and the second connection port 200 can be connected to each other and the first pin 110 and the second pin 210 are in conductive contact to achieve signal transmission, the input end of the first switch component 300 is used to connect to a first device, the output end of the first switch component 300 is connected to the first pin 110, the first device outputs a first signal, the first switch component 300 can form and output a first level signal to the first pin 110 according to the first signal, the input end of the second switch component 400 is connected to the second pin 210, the output end of the second switch component 400 is used to connect to the second device, and the second switch component 400 can form and output a second signal according to the first level signal, wherein the second signal is consistent with the first signal.

[0030] The first connection port 100 and the second connection port 200 may be conventional USB, HDMI, RS ports, etc. The first connection port 100 and the second connection port 200 both have multiple pins, and the first pin 110 and the second pin 210 are described as examples.

[0031] In the utility model, the first signal output from the first device is first processed by the first switch component 300 to form a first level signal, which is transmitted to the second switch component 400 through the first pin 110 and the second pin 210. The first level signal is then restored by the second switch component 400 to form a second signal consistent with the first signal and provided to the second device. By utilizing the on and off characteristics of the switch component, the impedance is high, and the instantaneous impact signal cannot be transmitted through the switch component, thereby preventing interference such as fast transient pulse groups and lightning surges from being transmitted through the anti-interference communication port module. The design has good anti-impact and anti-interference capabilities, and the signal transmission performance is stable and reliable.

[0032] In some embodiments of the present invention, Figure 2 , 3As shown, the first connection port 100 is also provided with a third pin 120, and the second connection port 200 is also provided with a fourth pin 220, and the third pin 120 and the fourth pin 220 are in conductive contact to realize signal transmission; the anti-interference communication port module also includes a third switch component 500 and a fourth switch component 600, the input end of the third switch component 500 is used to connect to the second device, the output end of the third switch component 500 is connected to the fourth pin 220, the second device outputs a third signal, the third switch component 500 can form and output a second level signal to the third pin 120 according to the third signal, the input end of the fourth switch component 600 is connected to the fourth pin 220, the output end of the fourth switch component 600 is used to connect to the first device, and the fourth switch component 600 can form and output a fourth signal according to the second level signal, wherein the fourth signal is consistent with the third signal.

[0033] The second device can also transmit information back to the first device through the third switch component 500, the third pin 120, the fourth pin 220 and the fourth switch component 600, and also has good anti-impact and anti-interference capabilities, and the signal transmission performance is stable and reliable.

[0034] Specifically, the first pin 110 and the third pin 120 are insulated and isolated from each other, and the second pin 210 and the fourth pin 220 are insulated and isolated from each other.

[0035] In some embodiments of the present invention, Figure 2 As shown, the first switch component 300 includes a first voltage dividing unit 310 and a first semiconductor switch tube Q1, the first voltage dividing unit 310 is connected to a power supply, the input end of the first voltage dividing unit 310 is connected to a first device, the output end of the first voltage dividing unit 310 is connected to a controlled pole of the first switch tube Q1, the input pole of the first switch tube Q1 is connected to a first pin 110, and the output pole of the first switch tube Q1 is grounded.

[0036] Among them, the power supply can be a constant voltage source that provides 5V or 3.3V. After the action of the first voltage divider unit 310, the power supply and the first signal output by the first device cooperate to form a driving signal that drives the first switch tube Q1 to turn on and off. Specifically, the first switch tube Q1 can be a triode or a MOS tube. The first switch tube Q1 is turned on and off to form a first level signal.

[0037] In some embodiments of the present invention, the first voltage dividing unit 310 includes a resistor R6, a resistor R7 and a resistor R8, one end of the resistor R6 is connected to the power supply, the other end of the resistor R6 is respectively connected to the first device and one end of the resistor R7, the other end of the resistor R7 is respectively connected to the controlled electrode of the first switch tube Q1 and one end of the resistor R8, and the other end of the resistor R8 is grounded.

[0038] In some embodiments of the present invention, Figure 3 As shown, the second switch component 400 includes a semiconductor second switch tube Q2 and a second voltage divider unit 410, the controlled pole of the second switch tube Q2 is connected to the second pin 210, the input pole of the second switch tube Q2 is connected to the input end of the second voltage divider unit 410, the output pole of the second switch tube Q2 is grounded, the second voltage divider unit 410 is connected to the power supply, and the output end of the second voltage divider unit 410 is connected to the second device.

[0039] The first level signal is transmitted to the second switch tube Q2 through the second pin 210. Specifically, the first switch tube Q1 may be a triode or a MOS tube, which drives the second switch tube Q2 to switch on and off, thereby restoring a second signal consistent with the first signal.

[0040] In some embodiments of the present invention, Figure 3 As shown, the second voltage dividing unit 410 includes a resistor R11, a resistor R12 and a capacitor C7, one end of the resistor R12 is connected to the power supply, the other end of the resistor R12 is respectively connected to the input pole of the second switch tube Q2, one end of the resistor R11 and one end of the capacitor C7, the other end of the resistor R12 is connected to the second device, and the other end of the capacitor C7 is grounded.

[0041] In some embodiments of the present invention, the second switch component 400 also includes a resistor R9 and a resistor R10, one end of the resistor R9 is connected to the second pin 210, the other end of the resistor R9 is respectively connected to one end of the resistor R10 and the controlled electrode of the second switch tube Q2, and the other end of the resistor R10 is grounded, thereby improving the driving capability of driving the second switch tube Q2 on and off.

[0042] Specifically, Figure 2 As shown, the first device outputs a first signal from the TX0 port. When the first signal is at a high level, the first switch tube Q1 is turned on, and the potential at the first pin 110 is pulled low, as shown in FIG. Figure 3 As shown, TX is the first pin 110, and RX1 is the second pin 210, the potential of the second pin 210 is low, the second switch tube Q2 is disconnected, and the second device obtains a high-level second signal from the RX2 port.

[0043] Similarly, when the first signal is at a low level, the first switch tube Q1 is disconnected, the potential at the first pin 110 is pulled high, the potential of the second pin 210 is high, the second switch tube Q2 is turned on, and the second device obtains a low-level second signal from the RX2 port.

[0044] In some embodiments of the present invention, Figure 2 As shown, the first switch component 300 further includes a first filtering unit 320 , and the input pole of the first switch tube Q1 is connected to the first pin 110 through the first filtering unit 320 .

[0045] The first filtering unit 320 can filter the first level signal, thereby further filtering out interference of the first level signal and maintaining stable and accurate signal transmission. Specifically, the first filtering unit 320 includes a capacitor C3, one end of which is respectively connected to the input pole of the first switch tube Q1 and the first pin 110.

[0046] In some embodiments of the present invention, the second switch component 400 further includes a second filtering unit 420 , and the second pin 210 is connected to the controlled electrode of the second switch tube Q2 through the second filtering unit 420 .

[0047] Similarly, after transmission through the first pin 110 and the second pin 210, the second filtering unit 420 can also filter out interference from the first level signal to maintain stable and accurate signal transmission. Specifically, the second filtering unit 420 includes a capacitor C6, one end of which is respectively connected to the second pin 210 and the controlled pole of the second switch tube Q2.

[0048] Specifically, the third switch assembly 500 may adopt a circuit structure similar to that of the first switch assembly 300 , and the fourth switch assembly 600 may adopt a circuit structure similar to that of the second switch assembly 400 .

[0049] According to the second aspect of the present invention, the electrical device includes a controller, a display, and an anti-interference communication port module as disclosed in any of the above embodiments, wherein the controller is connected to the input end of the first switch component 300, and the display is connected to the output end of the second switch component 400.

[0050] The utility model electric appliance device has a controller that sends a control signal to a display through an anti-interference communication port module, has good anti-impact and anti-interference capabilities, and has stable and reliable signal transmission performance.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An anti-interference communication port module, characterized in that: include: A first connection port is provided with a first pin; A second connection port is provided with a second pin, the first connection port and the second connection port can be connected to each other and the first pin and the second pin are in conductive contact to achieve signal transmission; A first switch component, wherein an input end of the first switch component is used to connect to a first device, an output end of the first switch component is connected to a first pin, the first device outputs a first signal, and the first switch component can form and output a first level signal to the first pin according to the first signal; A second switch component, wherein the input end of the second switch component is connected to the second pin, the output end of the second switch component is used to connect to a second device, and the second switch component can form and output a second signal according to the first level signal, wherein the second signal is consistent with the first signal.

2. The anti-interference communication port module according to claim 1, characterized in that: The first connection port is also provided with a third pin, and the second connection port is also provided with a fourth pin, and the third pin and the fourth pin are in conductive contact to realize signal transmission; the anti-interference communication port module also includes a third switch component and a fourth switch component, the input end of the third switch component is used to connect to the second device, the output end of the third switch component is connected to the fourth pin, the second device outputs a third signal, the third switch component can form and output a second level signal to the third pin according to the third signal, the input end of the fourth switch component is connected to the fourth pin, the output end of the fourth switch component is used to connect to the first device, and the fourth switch component can form and output a fourth signal according to the second level signal, wherein the fourth signal is consistent with the third signal.

3. The anti-interference communication port module according to claim 1, characterized in that: The first switch component includes a first voltage divider unit and a first semiconductor switch tube Q1, the first voltage divider unit is connected to a power supply, the input end of the first voltage divider unit is connected to a first device, the output end of the first voltage divider unit is connected to a controlled pole of the first switch tube Q1, the input pole of the first switch tube Q1 is connected to a first pin, and the output pole of the first switch tube Q1 is grounded.

4. The anti-interference communication port module according to claim 3, characterized in that: The first voltage dividing unit includes a resistor R6, a resistor R7 and a resistor R8, one end of the resistor R6 is connected to the power supply, the other end of the resistor R6 is respectively connected to the first device and one end of the resistor R7, the other end of the resistor R7 is respectively connected to the controlled electrode of the first switch tube Q1 and one end of the resistor R8, and the other end of the resistor R8 is grounded.

5. The anti-interference communication port module according to claim 3, characterized in that: The first switch component further includes a first filtering unit, and the input pole of the first switch tube Q1 is connected to the first pin through the first filtering unit.

6. The anti-interference communication port module according to claim 1, characterized in that: The second switch component includes a semiconductor second switch tube Q2 and a second voltage divider unit, the controlled pole of the second switch tube Q2 is connected to the second pin, the input pole of the second switch tube Q2 is connected to the input end of the second voltage divider unit, the output pole of the second switch tube Q2 is grounded, the second voltage divider unit is connected to the power supply, and the output end of the second voltage divider unit is connected to the second device.

7. The anti-interference communication port module according to claim 6, characterized in that: The second voltage dividing unit includes a resistor R11, a resistor R12 and a capacitor C7, one end of the resistor R12 is connected to the power supply, the other end of the resistor R12 is respectively connected to the input electrode of the second switch tube Q2, one end of the resistor R11 and one end of the capacitor C7, the other end of the resistor R12 is connected to the second device, and the other end of the capacitor C7 is grounded.

8. The anti-interference communication port module according to claim 6, characterized in that: The second switch component further includes a second filtering unit, and the second pin is connected to the controlled electrode of the second switch tube Q2 through the second filtering unit.

9. The anti-interference communication port module according to claim 6, characterized in that: The second switch component also includes a resistor R9 and a resistor R10, one end of the resistor R9 is connected to the second pin, the other end of the resistor R9 is respectively connected to one end of the resistor R10 and the controlled electrode of the second switch tube Q2, and the other end of the resistor R10 is grounded.

10. An electrical device, characterized in that: It comprises a controller, a display and an anti-interference communication port module as claimed in any one of claims 1 to 9, wherein the controller is connected to the input end of the first switch component, and the display is connected to the output end of the second switch component.

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