Weak current amplifying device

Abstract

The utility model relates to a weak current amplifying device which comprises a shell, a noise reduction plate is fixedly installed on the periphery of the outer surface of the shell, a heat dissipation net plate is fixedly installed on the outer surface of the left side of the noise reduction plate, and a protection assembly is arranged in the noise reduction plate. And the protection assembly comprises a cavity, the cavity is formed in the outer surface of the left side of the noise reduction plate, a motor is fixedly mounted on the inner wall of the cavity, and a threaded rod is fixedly mounted at an output shaft of the motor. According to the weak current amplification device, through cooperation of the heat dissipation net plate and the ventilation opening, circulation of air in the shell can be achieved, when a large amount of dust is attached to the surface of the heat dissipation net plate after long-time use, a U-shaped plate can be driven to move under starting of a motor, the U-shaped plate moves to drive a brush to sweep the dust on the heat dissipation net plate, and the heat dissipation net plate is prevented from being damaged. And meanwhile, the cleaned dust falls off through the dust discharge port, so that the heat of the electrical components in the shell can be normally dissipated.

Description

Technical Field

[0001] The utility model relates to the technical field of weak current amplifiers, in particular to a weak current amplifier device. Background Art

[0002] The function of the current amplifier is to provide current to the inductive current load according to the current command. In essence, it is a controlled current source. The current amplifier is generally composed of four parts: power supply, power electronic circuit, inductive load, and controller, and adopts output current closed-loop control.

[0003] A current amplifier is a device used to amplify current. It provides current to an inductive current load according to current instructions. When in use, the current amplifier often achieves air circulation through a heat dissipation network to achieve the purpose of heat dissipation. Due to the long-term use of the heat dissipation network, a large amount of dust will adhere to the heat dissipation effect of the current amplifier if it is not cleaned in time, resulting in the inability of the electronic components inside the current amplifier housing to dissipate heat, reducing the service life. Therefore, a weak current amplification device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a weak current amplifying device, which has the advantages of being easy to clean the dust on the heat dissipation net, etc., and solves the problem that the current amplifier often needs to achieve air circulation through the heat dissipation net to achieve the purpose of heat dissipation when in use. Due to the long-term use of the heat dissipation net, a large amount of dust will adhere to the heat dissipation net, which will reduce the heat dissipation effect of the current amplifier if it is not cleaned in time.

[0005] To achieve the above object, the utility model provides the following technical solution: a weak current amplification device, comprising a shell, a noise reduction plate is fixedly installed on the outer surface of the shell, a heat dissipation mesh plate is fixedly installed on the left outer surface of the noise reduction plate, and a protective component is arranged inside the noise reduction plate;

[0006] The protective component includes a cavity, a cavity is opened on the left outer surface of the noise reduction plate, a motor is fixedly installed on the inner wall of the cavity, a threaded rod is fixedly installed at the output shaft of the motor, a threaded block is threadedly connected to the outer surface of the threaded rod, a U-shaped plate is movably installed on the outer surface of the heat dissipation mesh plate, a slide groove is fixedly installed on the left outer surface of the noise reduction plate and at the bottom of the heat dissipation mesh plate, a brush is fixedly installed on the inner wall of the U-shaped plate, a groove is opened between the noise reduction plate and the left inner part of the shell, an electric fan is fixedly installed in the groove, and a ventilating opening is opened between the noise reduction plate and the right inner part of the shell.

[0007] Preferably, one end of the U-shaped plate extends to the interior of the cavity and is fixedly connected to the outer surface of the threaded block, and one end of the U-shaped plate extends to the interior of the slide groove.

[0008] Preferably, the brush is in contact with the outer surface of the heat dissipation mesh plate, and a dust exhaust port is provided at the bottom of the heat dissipation mesh plate.

[0009] Preferably, a bracket is fixedly installed inside the groove, and an electric fan is fixedly installed at one end of the bracket.

[0010] Preferably, the heat dissipation mesh plate, the groove and the shell are interconnected, and the height of the groove is the same as the height of the heat dissipation mesh plate, and the groove and the heat dissipation mesh plate are on the same horizontal plane.

[0011] Preferably, the noise reduction plate is made of metal material, and a dustproof net is fixedly installed inside the vent.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The weak current amplifying device can realize the circulation of air inside the shell by setting the cooperation between the heat dissipation mesh plate and the vent. When a large amount of dust adheres to the surface of the heat dissipation mesh plate after long-term use, the U-shaped plate can be driven to move when the motor is turned on. The movement of the U-shaped plate drives the brush to clean the dust on the heat dissipation mesh plate, and the cleaned dust falls through the dust discharge port at the same time, so that the electrical components inside the shell can dissipate heat normally. The surface of the heat dissipation mesh plate can be automatically cleaned without manual intervention. Good heat dissipation increases the service life of the electronic components inside the shell. By setting an electric fan, the components inside the shell can be cooled, and the air circulation is further increased to take away the heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 This is a left view of the structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 4 This is a bottom view of the U-shaped plate structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the weak current amplifying device of the utility model.

[0019] In the figure: 1. Shell; 2. Noise reduction plate; 3. Heat dissipation mesh plate; 4. Protection component; 401. Cavity; 402. Motor; 403. Threaded rod; 404. Threaded block; 405. U-shaped plate; 406. Slide groove; 407. Brush; 408. Groove; 409. Electric fan; 410. Ventilation port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A weak current amplification device in this embodiment includes a shell 1, a noise reduction plate 2 is fixedly installed on the outer surface of the shell 1, a heat dissipation mesh plate 3 is fixedly installed on the left outer surface of the noise reduction plate 2, and a protective component 4 is arranged inside the noise reduction plate 2.

[0022] Specifically, the shell 1 is equipped with four parts including a power supply, a power electronic circuit, an inductive load, and a controller, and adopts an output current closed-loop control to form a weak current amplification device. The protective component 4 provided can improve the air circulation inside the shell 1, thereby increasing the service life of the electronic components inside the shell 1.

[0023] The protective component 4 includes a cavity 401, a cavity 401 is opened on the left outer surface of the noise reduction plate 2, a motor 402 is fixedly installed on the inner wall of the cavity 401, a threaded rod 403 is fixedly installed at the output shaft of the motor 402, a threaded block 404 is threadedly connected to the outer surface of the threaded rod 403, a U-shaped plate 405 is movably installed on the outer surface of the heat dissipation mesh plate 3, a slide groove 406 is fixedly installed on the left outer surface of the noise reduction plate 2 and at the bottom of the heat dissipation mesh plate 3, a brush 407 is fixedly installed on the inner wall of the U-shaped plate 405, a groove 408 is opened between the noise reduction plate 2 and the left inner part of the shell 1, an electric fan 409 is fixedly installed inside the groove 408, and a vent 410 is opened between the noise reduction plate 2 and the right inner part of the shell 1.

[0024] Specifically, when a large amount of dust adheres to the surface of the heat dissipation mesh plate 3 after being used for a long time, the U-shaped plate 405 can be driven to move when the motor 402 is turned on. The U-shaped plate 405 moves to drive the brush 407 to clean the dust on the heat dissipation mesh plate 3, and at the same time, the cleaned dust falls through the dust exhaust port, so that the electrical components inside the shell 1 can dissipate heat normally.

[0025] One end of the U-shaped plate 405 extends to the inside of the cavity 401 and is fixedly connected to the outer surface of the threaded block 404, and one end of the U-shaped plate 405 extends to the inside of the slide groove 406. The brush 407 contacts the outer surface of the heat dissipation mesh plate 3, and a dust discharge port is provided at the bottom of the heat dissipation mesh plate 3.

[0026] Specifically, the movement of the threaded block 404 drives the U-shaped plate 405 to move, and one end of the U-shaped plate 405 can slide inside the slide groove 406, so that the dust cleaned by the heat dissipation mesh plate 3 falls from the dust exhaust port.

[0027] A bracket is fixedly installed inside the groove 408, and an electric fan 409 is fixedly installed at one end of the bracket.

[0028] Specifically, the electric fan 409 can be supported by the bracket, and the electric fan 409 can dissipate heat for the components inside the housing 1, further increasing air circulation, thereby taking away heat.

[0029] The heat dissipation mesh plate 3, the groove 408 and the shell 1 are interconnected, and the height of the groove 408 is the same as that of the heat dissipation mesh plate 3, and the groove 408 and the heat dissipation mesh plate 3 are on the same horizontal plane. The noise reduction plate 2 is made of metal material, and a dustproof net is fixedly installed inside the vent 410.

[0030] Specifically, the heat dissipation mesh plate 3, the groove 408 and the shell 1 are interconnected to achieve the purpose of air circulation, and the purpose of providing the noise reduction plate 2 is to intercept the noise emitted from the inside of the shell 1 and improve the practicality of the device.

[0031] When implementing, follow these steps:

[0032] 1) When a large amount of dust adheres to the surface of the heat dissipation mesh plate 3 after long-term use, the U-shaped plate 405 can be driven to move by turning on the motor 402;

[0033] 2) The U-shaped plate 405 then drives the brush 407 to clean the dust on the heat dissipation mesh plate 3, and the cleaned dust falls through the dust discharge port;

[0034] 3) At the same time, turning on the electric fan 409 can dissipate heat from the components inside the housing 1 and further increase air circulation.

[0035] In summary, the weak current amplification device can achieve air circulation inside the shell 1 by setting the cooperation between the heat dissipation mesh plate 3 and the vent 410. When a large amount of dust adheres to the surface of the heat dissipation mesh plate 3 after long-term use, the U-shaped plate 405 can be driven to move when the motor 402 is turned on. The U-shaped plate 405 moves to drive the brush 407 to clean the dust on the heat dissipation mesh plate 3, and the cleaned dust falls through the dust exhaust port at the same time, so that the electrical components inside the shell 1 can dissipate heat normally, and the surface of the heat dissipation mesh plate 3 can be automatically cleaned without manual intervention. Good heat dissipation increases the service life of the electronic components inside the shell 1; by setting the electric fan 409, the components inside the shell 1 can be cooled, and the air circulation is further increased to take away the heat.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weak current amplifying device, comprising a housing (1), characterized in that: A noise reduction plate (2) is fixedly mounted on the outer surface of the shell (1) all around, a heat dissipation mesh plate (3) is fixedly mounted on the left outer surface of the noise reduction plate (2), and a protective component (4) is arranged inside the noise reduction plate (2); The protection component (4) comprises a cavity (401), the left outer surface of the noise reduction plate (2) is provided with a cavity (401), a motor (402) is fixedly mounted on the inner wall of the cavity (401), a threaded rod (403) is fixedly mounted at the output shaft of the motor (402), the outer surface of the threaded rod (403) is threadedly connected with a threaded block (404), a U-shaped plate (405) is movably mounted on the outer surface of the heat dissipation mesh plate (3), a slide groove (406) is fixedly mounted on the left outer surface of the noise reduction plate (2) and at the bottom of the heat dissipation mesh plate (3), a brush (407) is fixedly mounted on the inner wall of the U-shaped plate (405), a groove (408) is provided between the noise reduction plate (2) and the left inner part of the shell (1), an electric fan (409) is fixedly mounted inside the groove (408), and a vent (410) is provided between the noise reduction plate (2) and the right inner part of the shell (1).

2. A weak current amplifying device according to claim 1, characterized in that: One end of the U-shaped plate (405) extends to the interior of the cavity (401) and is fixedly connected to the outer surface of the threaded block (404), and one end of the U-shaped plate (405) extends to the interior of the slide groove (406).

3. A weak current amplifying device according to claim 1, characterized in that: The brush (407) is in contact with the outer surface of the heat dissipation mesh plate (3), and a dust discharge port is provided at the bottom of the heat dissipation mesh plate (3).

4. A weak current amplifying device according to claim 1, characterized in that: A bracket is fixedly installed inside the groove (408), and an electric fan (409) is fixedly installed at one end of the bracket.

5. A weak current amplifying device according to claim 1, characterized in that: The heat dissipation mesh plate (3), the groove (408) and the housing (1) are interconnected, the height of the groove (408) is the same as the height of the heat dissipation mesh plate (3), and the groove (408) and the heat dissipation mesh plate (3) are on the same horizontal plane.

6. A weak current amplifying device according to claim 1, characterized in that: The noise reduction plate (2) is made of metal material, and a dustproof net is fixedly installed inside the ventilation opening (410).

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