Electromagnetic isolation device of AC-to-multipath DC transformation power supply equipment

Abstract

The utility model relates to the technical field of AC voltage-stabilized power supplies, in particular to an electromagnetic isolation device of AC-to-multipath DC transformation power supply equipment, which comprises a power supply shell, and the side wall of one side of the power supply shell is provided with a circuit break control panel used for controlling the operation of DC transformation equipment; electromagnetic isolation is carried out between power supplies subjected to filtering processing through the aluminum plates, and the aluminum plates have the advantages that when electromagnetic radiation is received, in the electric field and magnetic field conversion process, electric field electrons are grounded through the shell on the aluminum isolation plates and are led out, so that the electric field ring of the electromagnetic radiation is damaged; and finally, electrons in an electric field are guided into the ground through an electromagnetic interference electromagnetic isolation structure design, so that electromagnetic interference is continuously attenuated until disappearing.

Description

Technical Field

[0001] The utility model relates to the technical field of AC voltage-stabilized power supply, in particular to an electromagnetic isolation device for AC-to-multi-channel DC voltage-converting power supply equipment. Background Art

[0002] Generally, AC power to multi-channel DC transformers ignore the mutual electromagnetic interference between the multiple output DCs, and no isolation measures are taken between the output DC power supplies to prevent electromagnetic interference. However, music information processing equipment and playback equipment have very high requirements for voltage accuracy. Music equipment is very sensitive to voltage fluctuations. Electromagnetic interference will be brought into the music stream, which will manifest as electromagnetic noise in the music. Therefore, when music-related equipment is connected to the circuit, some anti-interference processing needs to be performed on the power line.

[0003] Publication No. CN214626796U discloses an anti-interference circuit and a power supply interference suppression device, which uses an LC resonant network to suppress interference signals in the corresponding frequency band for a specific frequency band of a known power-consuming device, and ensures that the power supply signal passes through, thereby suppressing interference signals at a relatively low hardware cost and accurately eliminating power supply noise. However, the device cannot effectively perform electromagnetic isolation for different frequencies, output powers, and multiple connected wiring devices to reduce the electromagnetic mutual influence between the devices. To this end, we propose an electromagnetic isolation device for AC to multi-channel DC transformer power supply equipment. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides an electromagnetic isolation device for AC to multi-channel DC transformer power supply equipment.

[0005] The technical solution adopted by the utility model to solve the technical problem is an electromagnetic isolation device for an AC to multi-channel DC transformer power supply device, comprising a power supply housing, a side wall of which is provided with a circuit breaker control panel for controlling the operation of the DC transformer device, a side wall of which is provided with a multi-channel power supply access socket for accessing different audio devices, and a main control circuit board for voltage conversion is fixedly installed at the inner bottom of the power supply housing;

[0006] An access slot is provided on the surface of the main control circuit board, a connector is plugged into the inside of the access slot, an aluminum isolation plate for electromagnetic isolation is fixedly connected to the top of the connector, spring connectors for snap-fitting and locking are provided on both side walls of the aluminum isolation plate, and a plurality of snap-fit ​​holes that fit with the spring connectors are provided on the inner wall of the power supply housing.

[0007] By adopting the above technical solution, aluminum plates are used for electromagnetic isolation between each filtered power supply. The advantage of using aluminum plates for anti-electromagnetic isolation is that when exposed to electromagnetic radiation, during the conversion of electric field and magnetic field, the electric field electrons are led out through the outer shell to the ground on the aluminum isolation plate, thereby destroying the electric field loop of the electromagnetic radiation. Finally, the electrons in the electric field are introduced into the earth through the electromagnetic interference electromagnetic isolation structure design, and the electromagnetic interference will continue to decay until it disappears.

[0008] Specifically, a voltage transformer controller for a main control circuit is arranged inside the power supply housing.

[0009] By adopting the above technical solution, when in use, the voltage transformation between different connections of the circuit board is controlled by the voltage transformation controller.

[0010] Specifically, an anti-interference top cover is detachably mounted on the top of the power supply housing.

[0011] By adopting the above technical solution, the electromagnetic interference generated after the audio circuit is connected is isolated by using the anti-interference top cover and the power supply housing.

[0012] Specifically, a conductive column for destroying the electromagnetic ring is provided at the bottom end of the connector, and the bottom end of the conductive column is connected to the inner wall box of the power supply housing.

[0013] By adopting the above technical solution, the electromagnetic field interference absorbed by the aluminum isolation plate is guided out by connecting the conductive column to the power supply housing.

[0014] Specifically, a conductive sheet for grounding is provided at the bottom end of the contact point between the power supply housing and the conductive column.

[0015] By adopting the above technical solution, a grounded conductive sheet is used in conjunction with an aluminum isolation plate to absorb electromagnetic interference through the aluminum material, conduct it through the conductive material, and finally connect it to the ground to complete the isolation of electromagnetic interference generated when multiple devices are connected.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical solution of the present application uses an aluminum plate for electromagnetic isolation between each filtered power supply through the structural design of a power supply housing, a multi-way power access socket, an aluminum isolation plate of a main control circuit board, a snap-in hole, a connector, a conductive column and a spring connector. The advantage of using an aluminum plate for anti-electromagnetic isolation is that when exposed to electromagnetic radiation, during the conversion process of the electric field and the magnetic field, the electric field electrons are led out through the aluminum isolation plate through the housing to the ground, thereby destroying the electric field loop of the electromagnetic radiation. Finally, the electrons in the electric field are introduced into the earth through the electromagnetic interference electromagnetic isolation structure design, and the electromagnetic interference will continue to decay until it disappears. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is an axonometric drawing of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the internal anti-interference isolation mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the connection structure of the power supply housing, the main control circuit board and the aluminum isolation plate of the utility model;

[0022] In the figure: 1. Power supply housing; 2. Circuit breaker control panel; 3. Multi-way power supply access socket; 4. Main control circuit board; 5. Aluminum isolation board; 6. Transformer controller; 7. Access slot; 8. Card hole; 9. Connector; 10. Conductive column; 11. Spring card connector; 12. Anti-interference top cover. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-3 The embodiment of the utility model provides a technical solution: an electromagnetic isolation device for an AC to multi-channel DC transformer power supply device, comprising a power supply housing 1, a side wall of which is provided with a circuit breaker control panel 2 for controlling the operation of the DC transformer device, a side wall of which is provided with a multi-channel power supply access socket 3 for accessing different audio devices, and a main control circuit board 4 for voltage conversion is fixedly installed at the bottom of the power supply housing 1;

[0025] An access slot 7 is provided on the surface of the main control circuit board 4, and a connector 9 is plugged into the inside of the access slot 7. An aluminum isolation plate 5 for electromagnetic isolation is fixedly connected to the top of the connector 9. Spring connectors 11 for snap-in locking are provided on both side walls of the aluminum isolation plate 5. A plurality of snap-in holes 8 that fit with the spring connectors 11 are provided on the inner wall of the power supply housing 1.

[0026] When in use, aluminum plates are used for electromagnetic isolation between each filtered power supply. The advantage of using aluminum plates for anti-electromagnetic isolation is that when exposed to electromagnetic radiation, during the conversion process of the electric field and the magnetic field, the electric field electrons are led out through the aluminum isolation plate through the outer shell to the ground, thereby destroying the electric field loop of the electromagnetic radiation. Finally, the electrons in the electric field are introduced into the earth through the electromagnetic interference electromagnetic isolation structure design, and the electromagnetic interference will continue to decay until it disappears.

[0027] As shown in the figure, a voltage transformer controller 6 for a main control circuit is arranged inside the power supply housing 1 .

[0028] When in use, the voltage transformation between different connections of the circuit board is controlled by the voltage transformation controller 6 .

[0029] As shown in the figure, an anti-interference top cover 12 is detachably mounted on the top of the power supply housing 1 .

[0030] When in use, the anti-interference top cover 12 cooperates with the power supply housing 1 to isolate the electromagnetic interference generated after the audio circuit is connected.

[0031] As shown in the figure, a conductive column 10 for destroying the electromagnetic ring is provided at the bottom end of the connector 9 , and the bottom end of the conductive column 10 is connected to the inner wall box of the power supply housing 1 .

[0032] When in use, the electromagnetic field interference absorbed by the aluminum isolation plate 5 is conducted out through the connection between the conductive column 10 and the power supply housing 1 .

[0033] As shown in the figure, a conductive sheet for grounding is provided at the bottom of the contact point between the power supply housing 1 and the conductive column 10 .

[0034] When in use, the grounded conductive sheet is used in conjunction with the aluminum isolation plate 5 to absorb electromagnetic interference through the aluminum material, conduct it through the conductive material, and finally connect it to the ground to complete the isolation of electromagnetic interference generated when multiple devices are connected.

[0035] The working principle and use process of the utility model are as follows: first, the power plug of the power supply housing 1 is connected to the circuit to power on, and the on and off of the circuit in the power supply housing 1 is controlled by the circuit breaker control panel 2. Then, the main control circuit board 4 controls the transformer controller 6 to make the power of each circuit interface connected to the multi-way power access socket 3 different, so that different audio devices can be inserted into the multi-way power access socket 3 with different powers according to the power of the device. The aluminum isolation plate 5 is inserted into the access slot 7 opened at the top of the main control circuit board 4 and the clamping holes 8 opened on both sides of the power supply housing 1 through the spring clamping piece 11 and the plug-in connector 9 on the side wall to complete the clamping and fixing, thereby realizing electromagnetic interference isolation between different circuit areas. After connecting multiple audio devices, different electromagnetic magnetic fields will be generated between different circuits, which will cause mutual interference between the output interfaces of each circuit and the circuit as a whole. At this time, the electrons moving in the electromagnetic field are absorbed by the aluminum isolation plate 5, and then passed through the plug-in connector 9 and introduced into the power supply housing 1 along the conductive column 10, and finally introduced into the earth through the grounding line of the power supply housing 1, destroying the magnetic field generated after each circuit completes the circuit cycle. Finally, the electromagnetic field will decay over time until it disappears.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electromagnetic isolation device for AC to multi-channel DC transformer power supply equipment, characterized in that: The invention comprises a power supply housing (1), wherein a circuit breaker control panel (2) for controlling the operation of a DC transformer is arranged on one side wall of the power supply housing (1), a multi-channel power supply access socket (3) for accessing different audio devices is provided on one side wall of the circuit breaker control panel (2), and a main control circuit board (4) for voltage conversion is fixedly installed on the inner bottom end of the power supply housing (1); The surface of the main control circuit board (4) is provided with an access slot (7), a connector (9) is plugged into the interior of the access slot (7), an aluminum isolation plate (5) for electromagnetic isolation is fixedly connected to the top of the connector (9), spring clips (11) for clipping and locking are provided on both side walls of the aluminum isolation plate (5), and a plurality of clip holes (8) that fit with the spring clips (11) are provided on the inner wall of the power supply housing (1).

2. The electromagnetic isolation device of an AC to multi-channel DC transformer power supply device according to claim 1, characterized in that: A voltage conversion controller (6) for a main control circuit is arranged inside the power supply housing (1).

3. The electromagnetic isolation device of an AC to multi-channel DC transformer power supply device according to claim 1, characterized in that: An anti-interference top cover (12) is detachably mounted on the top of the power supply housing (1).

4. The electromagnetic isolation device for AC to multi-channel DC transformer power supply equipment according to claim 1, characterized in that: A conductive column (10) for destroying the electromagnetic ring is provided at the bottom end of the plug connector (9), and the bottom end of the conductive column (10) is connected to the inner wall box of the power supply housing (1).

5. The electromagnetic isolation device for AC to multi-channel DC transformer power supply equipment according to claim 1, characterized in that: A conductive sheet for grounding is provided at the bottom end of the contact point between the power supply housing (1) and the conductive column (10).

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