Strong and weak current anti-interference improved device for electrical self-control line

Abstract

The utility model relates to the technical field of strong and weak current anti-interference devices, and discloses a strong and weak current anti-interference improved device for an electrical automatic control line, which comprises a separation mechanism and an auxiliary mechanism. The separating mechanism comprises a strong current mounting plate and a weak current mounting plate, a first shielding plate is fixedly connected to the outer side of the strong current mounting plate, a first clamping block is fixedly connected to the surface of the strong current mounting plate, a second clamping block is fixedly connected to the surface of the weak current mounting plate, and a second shielding plate is fixedly connected to the outer side of the weak current mounting plate; and a filter is bolted to the inner wall of the right side of the second shielding plate. According to the improved strong and weak current anti-interference device for the electrical self-control circuit, the strong and weak current circuits are arranged in different wiring grooves respectively, physical isolation is achieved, and the filter installed on the inner wall of the right side of the second shielding plate is connected with the output end of the weak current circuit and used for filtering high-frequency interference signals and further filtering electromagnetic interference of the strong current circuit; and the effect of improving effective isolation and protection of strong and weak current is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of strong and weak current anti-interference devices, in particular to an improved strong and weak current anti-interference device for an electric automatic control circuit. Background Art

[0002] Electricity applications can be divided into two categories: strong electricity and weak electricity according to the strength of the power transmission. Electricity for buildings and building complexes generally refers to strong electricity of AC 220V50Hz and above. It mainly provides electric energy to people and converts electric energy into other energy sources, such as air conditioning electricity, lighting electricity, power electricity, etc. There are two main types of weak electricity in intelligent buildings. One is low-voltage electricity such as the safety voltage level and control voltage stipulated by the state, which is divided into AC and DC, AC below 36V and DC below 24V, such as 24V DC control power supply, or emergency lighting backup power supply. The other type is information sources carrying voice, images, data and other information, such as telephone, television, and computer information. Generally, during the indoor decoration process, tin foil is often used to wrap the intersection of strong and weak electric wires and pipes at the water and electricity stage. The purpose is to shield the electromagnetic radiation emitted by the strong electricity, that is, the 220-volt wire, and reduce interference with the signal line.

[0003] According to Chinese patent publication number CN210781938U, a "strong and weak current anti-interference device for electrical automatic control circuits" is disclosed, which includes anti-interference tin foil, the anti-interference tin foil is externally connected with a fixed limit plate, and the anti-interference tin foil is a ring structure, the fixed limit plate is a "C" shaped structure, and the inner diameter of the fixed limit plate is equal to the outer diameter of the anti-interference tin foil, the fixed limit plate is externally connected with a first fixed hook, and the first fixed hook and the fixed limit plate are both made of metal. The strong and weak current anti-interference device for electrical automatic control circuits can enhance the shielding effect of electromagnetic fields and improve anti-interference capabilities. This strong and weak current anti-interference device for electrical automatic control circuits allows the anti-interference tin foil to be wrapped outside the intersection of strong and weak electric wires, and the fixed limit plate made of metal material can be stuck on the outside of the anti-interference tin foil through its opening to improve the shielding effect, and the fixed limit plate can be grounded through the first fixed hook to lead out the current and improve the anti-interference effect.

[0004] However, the above device has the problem that it simply uses anti-interference tin foil to isolate and shield the electromagnetic interference between strong and weak electricity, and has limited ability to isolate the electromagnetic field between strong and weak electricity lines, resulting in poor isolation and protection effects of strong and weak electricity. Utility Model Content

[0005] In view of the above technical deficiencies, the purpose of the utility model is to provide an improved strong and weak current anti-interference device for electrical automatic control circuits, so as to solve the problem of poor strong and weak current isolation and protection effect of existing strong and weak current anti-interference devices.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] An improved device for preventing strong and weak electricity interference for an electric automatic control circuit comprises a separation mechanism, and an auxiliary mechanism is arranged below the separation mechanism;

[0008] The separation mechanism includes a high-current mounting plate and a low-current mounting plate, a first shielding plate fixedly connected to the outer side of the high-current mounting plate, a first clamping block fixedly connected to the surface of the high-current mounting plate, a second clamping block fixedly connected to the surface of the low-current mounting plate, a second shielding plate fixedly connected to the outer side of the low-current mounting plate, and a filter bolted to the right inner wall of the second shielding plate.

[0009] Preferably, the left side of the first shielding plate is fixedly connected to the right side of the second shielding plate.

[0010] Preferably, a plurality of the first card blocks and the second card blocks are provided, and the plurality of the first card blocks and the second card blocks are respectively located on the surfaces of the high-voltage installation plate and the low-voltage installation plate and distributed in a rectangular array.

[0011] Preferably, a cable arrangement groove is formed inside the first card block and the second card block.

[0012] Preferably, the auxiliary mechanism comprises a connecting plate, a fixing plate is fixedly connected to the surface of the connecting plate, a separating ring is movably connected inside the fixing plate, and anti-interference tin foil is bonded to the inner wall of the separating ring.

[0013] Preferably, the connecting plate is fixedly connected below the strong current installation plate and the weak current installation plate, and the fixing plate is fixedly connected below the left side of the first shielding plate and the right side of the second shielding plate.

[0014] Preferably, a plurality of slots are provided inside the fixing plate, and a plurality of the separation rings are provided, and the plurality of separation rings are all snap-fitted and connected to the plurality of slots provided inside the fixing plate.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] First, the utility model installs the strong electric wires inside a plurality of first card blocks fixed on the surface of the strong electric installation board, inserts the strong electric wires into the wiring grooves opened inside the first card blocks, and then distributes the strong electric wires inside the plurality of first card blocks on the surface of the strong electric installation board as required, and then installs the weak electric wires inside a plurality of second card blocks fixed on the surface of the weak electric installation board, inserts the weak electric wires into the wiring grooves opened inside the second card blocks, and distributes the weak electric wires inside the plurality of second card blocks on the surface of the weak electric installation board as required, and achieves physical isolation by arranging the strong and weak electric wires in different wiring grooves respectively, and then further reduces the electromagnetic interference between the strong and weak electric wires through the first shielding plate and the second shielding plate fixed on the outer sides of the strong electric installation board and the weak electric installation board, thereby improving the anti-interference ability of the weak electric system, and connecting the filter installed on the inner wall on the right side of the second shielding plate to the output end of the weak electric wire to filter out high-frequency interference signals, further filtering the electromagnetic interference of the strong electric wires, thereby achieving the effect of improving the effective isolation and protection of the strong and weak electric wires.

[0017] Secondly, the utility model uses the multiple card slots opened inside the fixed plate to respectively insert multiple separation rings suitable for the specifications of strong and weak wires into the multiple card slots, and then respectively pass the weak and strong wires through the strong and weak wire threading grooves separated inside the separation rings. The anti-interference tin foil paper bonded to the inner wall of the separation ring prevents the strong wires separated inside the separation ring from interfering with the weak wires, thereby achieving the effect of facilitating the routing of strong and weak lines and reducing the electromagnetic interference at the junction of the strong and weak lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the auxiliary mechanism structure of the utility model.

[0023] Among them: 1. separation mechanism; 101. high-voltage installation plate; 102. low-voltage installation plate; 103. first shielding plate; 104. first clamping block; 105. second clamping block; 106. second shielding plate; 107. filter; 2. auxiliary mechanism; 201. connecting plate; 202. fixing plate; 203. separation ring; 204. anti-interference tin foil. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be further described in detail below with reference to the accompanying drawings.

[0025] A strong and weak current anti-interference improvement device for an electric automatic control circuit under this specific implementation method, such as Figure 1-5 As shown, it includes a separation mechanism 1, and an auxiliary mechanism 2 is arranged below the separation mechanism 1;

[0026] The separation mechanism 1 includes a high-current installation plate 101 and a low-current installation plate 102. A first shielding plate 103 is fixedly connected to the outer side of the high-current installation plate 101, a first clamping block 104 is fixedly connected to the surface of the high-current installation plate 101, a second clamping block 105 is fixedly connected to the surface of the low-current installation plate 102, a second shielding plate 106 is fixedly connected to the outer side of the low-current installation plate 102, and a filter 107 is bolted to the right inner wall of the second shielding plate 106.

[0027] Through the above technical solution, by installing the strong electric wires inside the multiple first card blocks 104 fixed on the surface of the strong electric installation board 101, by clamping the strong electric wires into the cable arrangement grooves opened inside the first card blocks 104, and then distributing the strong electric lines inside the multiple first card blocks 104 on the surface of the strong electric installation board 101 as required, and then installing the weak electric wires inside the multiple second card blocks 105 fixed on the surface of the weak electric installation board 102, by clamping the weak electric wires into the cable arrangement grooves opened inside the second card blocks 105, and then distributing the strong electric lines inside the multiple first card blocks 104 on the surface of the weak electric installation board 102 as required. The weak current lines are partially distributed, and physical isolation is achieved by arranging the strong and weak current lines in different wiring troughs respectively. Then, the first shielding plate 103 and the second shielding plate 106 fixed on the outside of the strong current installation plate 101 and the weak current installation plate 102 further reduce the electromagnetic interference between the strong and weak currents, and improve the anti-interference ability of the weak current system. The filter 107 installed on the inner wall on the right side of the second shielding plate 106 is connected to the output end of the weak current line to filter out high-frequency interference signals, further filter the electromagnetic interference of the strong current line, and achieve the effect of improving the effective isolation and protection of strong and weak currents.

[0028] Specifically, the left side of the first shielding plate 103 is fixedly connected to the right side of the second shielding plate 106 .

[0029] Through the above technical solution, by fixedly connecting the left side of the first shielding plate 103 with the right side of the second shielding plate 106 , the electromagnetic interference between strong and weak electricity can be further reduced, thereby improving the anti-interference ability of the weak current system.

[0030] Specifically, a plurality of the first card blocks 104 and the second card blocks 105 are provided, and the plurality of the first card blocks 104 and the second card blocks 105 are respectively located on the surfaces of the high-voltage installation board 101 and the low-voltage installation board 102 and distributed in a rectangular array.

[0031] Through the above technical scheme, by clamping the low-voltage electric wires into the multiple second card blocks 105 fixed on the surface of the low-voltage installation board 102, the low-voltage electric wires are distributed in the multiple second card blocks 105 as needed, and then clamping the high-voltage electric wires into the multiple first card blocks 104 fixed on the surface of the high-voltage installation board 101, the high-voltage electric wires are distributed in the multiple first card blocks 104 as needed, and the strong and weak current lines are respectively arranged in different wiring grooves to achieve physical isolation.

[0032] Specifically, a cable arrangement groove is formed inside the first clamping block 104 and the second clamping block 105 .

[0033] Through the above technical solution, the cable arrangement grooves opened inside the first card block 104 and the second card block 105 facilitate operators to install the weak current lines and the strong current lines inside the second card block 105 and the first card block 104 respectively as needed.

[0034] Specifically, the auxiliary mechanism 2 includes a connecting plate 201 , a fixing plate 202 is fixedly connected to the surface of the connecting plate 201 , a separating ring 203 is movably connected inside the fixing plate 202 , and an anti-interference tin foil 204 is bonded to the inner wall of the separating ring 203 .

[0035] Through the above technical scheme, multiple separation rings 203 suitable for the specifications of strong wires and weak wires are respectively inserted into the multiple slots through the multiple slots opened inside the fixed plate 202, and then the weak wires and the strong wires are respectively passed through the strong and weak wire threading grooves separated inside the separation rings 203. The anti-interference tin foil 204 bonded to the inner wall of the separation ring 203 prevents the strong wires separated inside the separation ring 203 from interfering with the weak wires, thereby achieving the effect of facilitating the routing of strong and weak lines and reducing the electromagnetic interference at the junction of strong and weak lines.

[0036] Specifically, the connecting plate 201 is fixedly connected below the strong current installation plate 101 and the weak current installation plate 102 , and the fixing plate 202 is fixedly connected below the left side of the first shielding plate 103 and the right side of the second shielding plate 106 .

[0037] Through the above technical solution, by fixing the connecting plate 201 under the high-voltage installation plate 101 and the low-voltage installation plate 102, it is convenient to fix the fixed plate 202 on the surface of the connecting plate 201 under the left side of the first shielding plate 103 and the right side of the second shielding plate 106, so that the high-voltage lines installed inside the high-voltage installation plate 101 and the low-voltage lines installed inside the low-voltage installation plate 102 can pass through the separating ring 203 engaged inside the fixing plate 202, which facilitates the routing of the high-voltage lines and the low-voltage lines.

[0038] Specifically, a plurality of slots are provided inside the fixing plate 202 , and a plurality of separation rings 203 are provided. The plurality of separation rings 203 are all engaged and connected in the plurality of slots provided inside the fixing plate 202 .

[0039] Through the above technical scheme, multiple separation rings 203 suitable for the specifications of strong wires and weak wires are respectively inserted into the multiple slots through the multiple slots opened inside the fixed plate 202, and then the weak wires and the strong wires are respectively passed through the strong and weak wire threading grooves separated inside the separation rings 203. The anti-interference tin foil 204 bonded to the inner wall of the separation ring 203 prevents the strong wires separated inside the separation ring 203 from interfering with the weak wires.

[0040] When in use, the strong electric wires are installed inside the multiple first card blocks 104 fixed on the surface of the strong electric installation board 101, and the strong electric wires are inserted into the wiring grooves opened inside the first card blocks 104, and then the strong electric lines are distributed inside the multiple first card blocks 104 on the surface of the strong electric installation board 101 as needed, and then the weak electric wires are installed inside the multiple second card blocks 105 fixed on the surface of the weak electric installation board 102, and the weak electric wires are inserted into the wiring grooves opened inside the second card blocks 105, and the weak electric lines are distributed inside the multiple second card blocks 105 on the surface of the weak electric installation board 102 as needed, and the strong and weak electric lines are arranged in different wiring grooves respectively to achieve physical isolation, and then the first shielding plate 103 and the second shielding plate 106 fixed on the outside of the strong electric installation board 101 and the weak electric installation board 102 further reduce the electrical connection between the strong and weak electric wires. Magnetic interference is improved, and the anti-interference ability of the weak current system is improved. The filter 107 is a prior art, and its model is an RC low-pass filter. It will not be described in detail here. The filter 107 installed on the inner wall on the right side of the second shielding plate 106 is connected to the output end of the weak current line to filter out high-frequency interference signals and further filter the electromagnetic interference of the strong current line. Through the multiple card slots opened inside the fixed plate 202, multiple separation rings 203 suitable for the specifications of strong and weak wires are respectively inserted into the multiple card slots, and then the weak and strong wires are respectively passed through the strong and weak wire threading grooves separated by the separation ring 203. The anti-interference tin foil 204 bonded to the inner wall of the separation ring 203 prevents the strong wires separated inside the separation ring 203 from interfering with the weak wires, which facilitates the routing of strong and weak current lines and achieves the effect of improving the effective isolation and protection of strong and weak electricity.

[0041] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved device for preventing strong and weak current interference for an electric automatic control circuit, comprising a separation mechanism (1), characterized in that: An auxiliary mechanism (2) is provided below the separation mechanism (1); The separation mechanism (1) comprises a strong current installation plate (101) and a weak current installation plate (102); a first shielding plate (103) is fixedly connected to the outer side of the strong current installation plate (101); a first clamping block (104) is fixedly connected to the surface of the strong current installation plate (101); a second clamping block (105) is fixedly connected to the surface of the weak current installation plate (102); a second shielding plate (106) is fixedly connected to the outer side of the weak current installation plate (102); and a filter (107) is bolted to the right inner wall of the second shielding plate (106).

2. The strong and weak current anti-interference improvement device for electric automatic control circuit according to claim 1 is characterized in that: The left side of the first shielding plate (103) is fixedly connected to the right side of the second shielding plate (106).

3. The strong and weak current interference prevention improvement device for electric automatic control circuit according to claim 1 is characterized in that: A plurality of the first card blocks (104) and the second card blocks (105) are provided, and the plurality of the first card blocks (104) and the second card blocks (105) are respectively located on the surfaces of the high-voltage installation board (101) and the low-voltage installation board (102) and distributed in a rectangular array.

4. The strong and weak current interference prevention improvement device for electric automatic control circuit according to claim 1 is characterized in that: The first clamping block (104) and the second clamping block (105) are both provided with cable arrangement grooves on their inner sides.

5. The strong and weak current interference prevention improvement device for electric automatic control circuit according to claim 1 is characterized in that: The auxiliary mechanism (2) comprises a connecting plate (201), the surface of the connecting plate (201) is fixedly connected to a fixing plate (202), the fixing plate (202) is internally movably connected to a separation ring (203), and the inner wall of the separation ring (203) is bonded with anti-interference tin foil (204).

6. The device for improving strong and weak current interference prevention for electric automatic control circuit according to claim 5 is characterized in that: The connecting plate (201) is fixedly connected below the strong current installation plate (101) and the weak current installation plate (102), and the fixing plate (202) is fixedly connected below the left side of the first shielding plate (103) and the right side of the second shielding plate (106).

7. The device for improving strong and weak current interference prevention for electric automatic control circuit according to claim 5 is characterized in that: A plurality of slots are provided inside the fixing plate (202), and a plurality of separation rings (203) are provided. The plurality of separation rings (203) are all snap-fitted and connected to the plurality of slots provided inside the fixing plate (202).

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