Amplification circuit linear power supply

Abstract

The utility model discloses an amplification circuit linear power supply, which belongs to the technical field of linear power supplies and comprises a shell, a plurality of heat dissipation ports are arranged on two sides of the shell, a mounting plate is mounted above the shell, an air bellow is inserted into the shell through the mounting plate, a hollow ring is connected onto the shell, and a take-up wheel is rotatably connected into the shell. According to the linear power supply of the amplification circuit, ventilation and heat dissipation can be conducted through heat dissipation openings in the two sides of the shell during normal work, when the temperature is too high, a user inserts an air bellow into a mounting plate, the air bellow pushes an elastic plate through a triangular inclined face of a clamping block during insertion, the elastic plate is deformed, and the elastic plate is fixed; the clamping blocks are clamped into the clamping grooves through elastic resilience of the elastic plates, the air bellow is fixed into the mounting plate and prevented from falling off accidentally, the driving motor can rotate the heat dissipation blades, air enters the shell from the ventilation openings, the circulation rate of the air in the shell is increased, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of linear power supplies, and specifically relates to a linear power supply for an amplifier circuit. Background Art

[0002] An amplifier circuit, also known as an amplifier, is used to amplify a weak input signal to the required amplitude value and obtain a signal that is consistent with the variation law of the original input signal. A linear power supply first reduces the voltage amplitude of alternating current through a transformer, then rectifies it through a rectifier circuit to obtain pulsed direct current, and finally filters it to obtain a direct current voltage with a small ripple voltage.

[0003] After the linear power supply works for a long time, a large amount of heat will be generated by the internal electronic components. If this heat cannot be dissipated in time, it is easy to cause component damage, thus affecting normal operation. Moreover, some linear power supplies are connected with long transmission lines, which are not convenient for users to store and organize. Content of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a linear power supply for an amplifier circuit, which solves the problems that the heat generated by the linear power supply during operation is not dissipated in time, easily leading to component damage, and the long length of the transmission line is not convenient for users to store and organize.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A linear power supply for an amplifier circuit, including a housing, with a plurality of heat dissipation openings provided on both sides of the housing, a mounting plate installed above the housing, a wind box inserted into the housing through the mounting plate, a hollow ring connected to the housing, a wire reel rotatably connected inside the housing, and a rotating wheel connected above the wire reel through a connecting shaft;

[0006] A transmission line is connected to the wire reel. Both the upper and lower parts of the wind box are of an open design. A dust-proof net is installed above the wind box through bolt assemblies. An installation frame is connected inside the wind box, and a driving motor is installed on the installation frame. A heat dissipation blade is installed on the output shaft of the driving motor.

[0007] As a further solution of the utility model: A plurality of ventilation openings are provided on the mounting plate, elastic plates are connected to both sides of the mounting plate, and clamping blocks are connected to the elastic plates.

[0008] As a further solution of the utility model: Card slots are provided on both sides of the wind box. The clamping blocks are of a triangular design and are fitted into the card slots.

[0009] As a further solution of the utility model: A spring is connected inside the hollow ring. One end of the spring is connected to a fixed block, and the fixed block is provided with an inclined surface and slides inside the hollow ring.

[0010] As a further solution of the present utility model: One end of the transmission line is connected with a connector, a protective sleeve is arranged at the part where the connector is connected with the transmission line, a fixing groove is formed on the protective sleeve, and the fixing block is clamped in the fixing groove.

[0011] As a further solution of the present utility model: A dust-proof plate is connected to the position where the housing is provided with a heat dissipation opening, and threaded holes are formed at the four corners of the dust-proof net and on the air box.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this linear power supply of the amplifier circuit, by setting the mounting plate, elastic plate, clamping block, clamping groove, driving motor, heat dissipation blades, ventilation openings and heat dissipation openings, during normal operation, the linear power supply can dissipate heat through the heat dissipation openings on both sides of the housing. When the temperature is too high, the user can insert the air box into the mounting plate. During the insertion process, the air box will push the elastic plate through the triangular inclined surface of the clamping block, causing the elastic plate to deform. Then, the elastic force of the elastic plate rebounds to snap the clamping block into the clamping groove, fixing the air box inside the mounting plate to prevent accidental detachment. The driving motor can rotate the heat dissipation blades to make the air enter the housing from the ventilation openings, thereby accelerating the air circulation rate inside the housing and improving the heat dissipation effect.

[0014] 2. For this linear power supply of the amplifier circuit, by setting the rotating wheel, wire winding wheel, hollow ring, spring, fixing block and fixing groove, the user can rotate the wire winding wheel by turning the rotating wheel, so that the transmission line can be wound around the wire winding wheel, thereby storing and organizing the transmission line to facilitate the user to carry and use this linear power supply. When the transmission line is completely wound around the wire winding wheel, the protective sleeve will be inserted into the hollow ring, and at the same time, the fixing block will be pushed into the hollow ring to compress the spring. Then, the spring rebounds to snap the fixing block into the fixing groove, fixing the protective sleeve to prevent the transmission line from accidentally extending. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the sectional structure of the housing, hollow ring and wire winding wheel of the present utility model;

[0017] Figure 3 is a schematic diagram of the sectional structure of the air box of the present utility model;

[0018] Figure 4 is Figure 2 a schematic diagram of the enlarged structure of part A in

[0019] In the figure: 1. Outer shell; 2. Heat dissipation opening; 3. Mounting plate; 4. Air box; 5. Hollow ring; 6. Wire reel; 7. Rotating wheel; 8. Transmission line; 9. Dust-proof net; 10. Mounting bracket; 11. Driving motor; 12. Heat dissipation fins; 13. Ventilation opening; 14. Elastic plate; 15. Clamping block; 16. Card slot; 17. Spring; 18. Fixed block; 19. Connector; 20. Protective sleeve; 21. Fixed groove; 22. Dust-proof plate; 23. Threaded hole. Detailed implementation manner

[0020] The technical solution of this patent will be further described in detail below in combination with the specific implementation manner.

[0021] As Figures 1-4 shown, the present utility model provides a technical solution: an amplified circuit linear power supply, including an outer shell 1, a plurality of heat dissipation openings 2 are opened on both sides of the outer shell 1, a dust-proof plate 22 is connected to the position of the outer shell 1 where the heat dissipation opening 2 is opened, threaded holes 23 are opened at the four corners of the dust-proof net 9 and on the air box 4, and the normal flow of air inside the outer shell 1 is ensured through the heat dissipation openings 2 opened on both sides of the outer shell 1, avoiding the accumulation of heat and affecting the operation of electronic components. And the user can disassemble and clean the dust-proof net 9 by loosening the bolts, which can avoid the blockage of the mesh holes of the dust-proof net 9 by dust.

[0022] A mounting plate 3 is installed above the outer shell 1, a plurality of ventilation openings 13 are opened on the mounting plate 3, elastic plates 14 are connected to both sides of the mounting plate 3, and clamping blocks 15 are connected to the elastic plates 14. Through the plurality of ventilation openings 13, the heat dissipation fins 12 can blow air into the inner part of the outer shell 1, thereby accelerating the air circulation speed inside the outer shell 1, avoiding the accumulation of high-temperature air and causing component damage, and improving the overall heat dissipation efficiency.

[0023] The outer shell 1 is inserted with an air box 4 through the mounting plate 3, a hollow ring 5 is connected to the outer shell 1, a spring 17 is connected inside the hollow ring 5, one end of the spring 17 is connected with a fixed block 18, the fixed block 18 is provided with an inclined surface and slides inside the hollow ring 5. By compressing the spring 17, the spring 17 generates a resilience force, prompting the fixed block 18 to be stuck into the fixed groove 21, thereby buckling the protective sleeve 20 at the hollow ring 5, avoiding the accidental extension of the transmission line 8 and affecting the storage and carrying.

[0024] A wire reel 6 is rotatably connected inside the outer shell 1, a rotating wheel 7 is connected above the wire reel 6 through a connecting shaft, a transmission line 8 is connected to the wire reel 6, one end of the transmission line 8 is connected with a connector 19, a protective sleeve 20 is arranged at the part where the connector 19 is connected with the transmission line 8, a fixed groove 21 is opened on the protective sleeve 20, and the fixed block 18 is clamped in the fixed groove 21. The connection part of the connector 19 and the transmission line 8 is protected by the protective sleeve 20, avoiding the skin breakage of the transmission line 8 caused by long-term bending use.

[0025] The upper and lower parts of the bellows 4 are both open-type designs. A dust-proof net 9 is installed above the bellows 4 through a bolt assembly. An installation frame 10 is connected inside the bellows 4. A driving motor 11 is installed on the installation frame 10. A heat dissipation blade 12 is installed on the output shaft of the driving motor 11. Card slots 16 are opened on both sides of the bellows 4. The clamping block 15 is triangular in design and is fitted with the card slot 16. Through the fitting of the clamping block 15 and the card slot 16, the bellows 4 can be fixed in the mounting plate 3, thus preventing the bellows 4 from falling. The detachable bellows 4 enables the user to clean the heat dissipation blade 12 and the dust-proof net 9 conveniently, avoiding the influence of dust adhesion on normal work.

[0026] The working principle of the present utility model is as follows:

[0027] When the linear power supply works, it can ventilate and dissipate heat through the heat dissipation openings 2 on both sides of the housing 1. When the temperature is too high, the user can insert the bellows 4 into the mounting plate 3 and start the driving motor 11 in the bellows 4 to rotate the heat dissipation blade 12, so that air enters the interior of the housing 1 from the ventilation opening 13, accelerating the air circulation rate inside the housing 1, thereby improving the heat dissipation effect. During the process of inserting the bellows 4, the bellows 4 will push the elastic plate 14 through the clamping block 15, causing the elastic plate 14 to deform. Thus, the elastic force of the elastic plate 14 rebounds to snap the clamping block 15 into the card slot 16, fixing the bellows 4 in the mounting plate 3. And the user can rotate the wire reel 6 through the rotating wheel 7 to wind the transmission line 8 around the wire reel 6, thereby storing and arranging the transmission line 8 to facilitate the user to carry and use the linear power supply. When the transmission line 8 is completely wound around the wire reel 6, the protective sleeve 20 will be inserted into the hollow ring 5, and at the same time, the fixing block 18 will be pushed into the interior of the hollow ring 5 to compress the spring 17. Thus, the spring 17 rebounds to snap the fixing block 18 into the fixing slot 21 to fix the protective sleeve 20 to prevent the transmission line 8 from moving.

[0028] In the description of the present utility model, 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0029] The above has described the preferred embodiments of the present patent in detail, but the present patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present patent.

Claims

1. An amplifier circuit linear power supply, comprising a housing (1), characterized in that: A plurality of heat dissipation openings (2) are provided on both sides of the housing (1). An installation plate (3) is installed above the housing (1). The housing (1) is plugged with an air box (4) through the installation plate (3). A hollow ring (5) is connected to the housing (1). A wire reel (6) is rotatably connected inside the housing (1). Above the wire reel (6), a rotating wheel (7) is connected through a connecting shaft. A transmission line (8) is connected to the wire reel (6). The upper and lower parts of the air box (4) are of an open design. A dust-proof net (9) is installed above the air box (4) through a bolt assembly. An installation frame (10) is connected inside the air box (4). A driving motor (11) is installed on the installation frame (10). A heat dissipation blade (12) is installed on the output shaft of the driving motor (11).

2. The linear power supply for an amplifier circuit according to claim 1, characterized in that: A plurality of ventilation openings (13) are provided on the installation plate (3). Elastic plates (14) are connected to both sides of the installation plate (3). A clamping block (15) is connected to the elastic plate (14).

3. The linear power supply of an amplifier circuit according to claim 2, wherein: Card slots (16) are provided on both sides of the air box (4). The clamping block (15) is designed as a triangle and is fitted with the card slot (16).

4. An amplified circuit linear power supply according to claim 1, characterized in that: A spring (17) is connected inside the hollow ring (5). One end of the spring (17) is connected to a fixed block (18). The fixed block (18) is provided with an inclined surface and slides inside the hollow ring (5).

5. An amplified circuit linear power supply according to claim 4, characterized in that: One end of the transmission line (8) is connected to a connector (19). A protective sleeve (20) is provided at the part where the connector (19) is connected to the transmission line (8). A fixing groove (21) is provided on the protective sleeve (20). The fixed block (18) is clamped in the fixing groove (21).

6. The linear power supply for an amplifier circuit according to claim 1, wherein: A dust-proof plate (22) is connected to the position of the housing (1) where the heat dissipation opening (2) is provided. Threaded holes (23) are provided at the four corners of the dust-proof net (9) and on the air box (4).

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