CN210327889U

CN210327889U - Network digital power amplifier

Info

Publication number: CN210327889U
Application number: CN201921645742.4U
Authority: CN
Inventors: 李冰
Original assignee: Guangzhou Hongding Electronic Equipment Co Ltd
Current assignee: Guangzhou Hongding Electronic Equipment Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-14
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a network digit power amplifier, concretely relates to power amplifier field, including engine body shell and driving motor, the fixed rotation wheel that is provided with on driving motor's the output, the rotation is taken turns to one side of keeping away from driving motor and is rotated and be provided with the backup pad, the fixed first rack that is provided with in one side of keeping away from driving motor in the backup pad, all install the heat dissipation window in the lateral wall at both ends about engine body shell, the heat dissipation window includes the fin, the fixed setting in the axis of rotation of one end of fin, the both ends of axis of rotation are all rotated and are set up on engine body shell's lateral wall, the intermediate position of axis of rotation all is provided with the second rack. The utility model discloses neither influence the normal heat dissipation of power amplifier, can avoid the dust in the air to get into engine body shell inside again, can effectively improve the life of power amplifier, utilize a driving motor to drive opening or closing of fin and rotary disk simultaneously, can reduction in production cost.

Description

Network digital power amplifier

Technical Field

The utility model relates to a power amplifier technical field, more specifically says, the utility model relates to a network digit power amplifier.

Background

The power amplifier is commonly called as a loudspeaker, and is a power amplifier which amplifies weak sound source signals and pushes a sound box to play sound, and the power amplifier is an essential part in sound system equipment. The circuit board components and parts can generate heat continuously in the working process of the power amplifier, and if the heat is accumulated and cannot be emitted in time, the electronic circuit components and parts can be burnt down and the like when working at a continuous overhigh temperature. The heat dissipation of a set of good sound system power amplifier plays a role of power unavailability, and particularly, if a high-power amplifier does not adopt an effective heat dissipation mode, electronic devices such as an internal tube core and the like influence the tone quality output effect due to overhigh temperature.

Because the power amplifier needs to be provided with the thermovent to realize the inside thermal effluvium, but inside dust in the air got into engine body shell from the thermovent easily, caused the inside components and parts short circuit of power amplifier to burn out.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a network digital power amplifier, through being provided with driving motor, a chain, the sprocket, the driving gear, driven gear and rotary disk, be provided with at heat dissipation department and filter the sieve, can reduce in the air inside red dust gets into engine body shell, when not using, can utilize driving motor to drive the rotary disk and rotate, make second louvre on the rotary disk stagger each other with the first louvre on filtering the sieve, can avoid inside the air admission engine body shell, compare with prior art, neither influence the normal heat dissipation of power amplifier, can avoid inside the dust in the air gets into engine body shell again, can effectively improve the life of power amplifier.

In order to achieve the above object, the utility model provides a following technical scheme: a network digital power amplifier comprises a machine body shell, a circuit board is fixedly arranged at the middle position in the machine body shell, a driving motor is fixedly arranged at the middle position of the lower end of the circuit board, a rotating wheel is fixedly arranged at the output end of the driving motor, a driving sprocket is arranged on the output shaft of one of the driving motors, a chain is arranged on the driving sprocket, the driving sprocket is connected with a driven sprocket through chain transmission, a connecting shaft is fixedly arranged at the middle position of the driven sprocket, a driving gear is fixedly arranged at one end of the connecting shaft, a driven gear is meshed with one side of the upper end of the driving gear, a rotating shaft is fixedly arranged at the upper end of the driven gear, the upper end of the rotating shaft is fixedly connected with a rotating disk, the rotating disk is arranged in the side wall of the top end of the machine body shell, a filtering sieve plate is, the upper surface of engine body shell is provided with the thermovent, thermovent department is provided with the iron mesh cover, it rotates and is provided with the backup pad to rotate one side of keeping away from driving motor on the wheel, the fixed first rack that is provided with in one side of keeping away from driving motor in the backup pad, all install the heat dissipation window in the lateral wall at both ends about the engine body shell, the heat dissipation window includes the fin, the one end of fin is fixed to be set up in the axis of rotation, the both ends of axis of rotation all rotate and set up on the lateral wall of engine body shell, the intermediate position of axis of rotation all is provided with the second rack.

In a preferred embodiment, the outer end of the machine body shell is provided with a switch, an adjusting knob and a display screen, the bottom end of the machine body shell is fixedly provided with a supporting foot pad, and the bottom end of the supporting foot pad is provided with a non-slip mat.

In a preferred embodiment, the driving motor is a two-shaft servo motor, and the first rack is matched with the second rack.

In a preferred embodiment, the upper end of the rotating shaft passes through the top side wall of the machine body shell and the filtering sieve plate and is fixedly connected with the rotating disc.

In a preferred embodiment, a plurality of first heat dissipation holes are uniformly arranged on the filtering sieve plate at intervals, and a plurality of second heat dissipation holes are uniformly arranged on the rotating disc at intervals.

In a preferred embodiment, the number of the first heat dissipation hole is the same as that of the second heat dissipation hole, and the sizes of the first heat dissipation hole and the second heat dissipation hole are matched.

In a preferred embodiment, guide plates are fixedly arranged on the side walls of the left end and the right end of the machine body shell, and the two ends of the support plate are slidably arranged on the inner sides of the guide plates.

In a preferred embodiment, the iron mesh cover is disposed outside the rotating disc, and the fan is fixedly installed inside the housing.

Compared with the prior art, the utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with driving motor, the chain, the sprocket, the driving gear, driven gear and rotary disk, be provided with the filtration sieve in heat dissipation mouth department, can reduce red dust in the air and get into the engine body shell inside, when not using, can utilize driving motor to drive the rotary disk and rotate, make the second louvre on the rotary disk stagger each other with the first louvre on the filtration sieve, can avoid the air to get into the engine body shell inside, compared with the prior art, neither influence the normal heat dissipation of power amplifier, can avoid the dust in the air to get into the engine body shell inside again, can effectively improve the life of power amplifier;

2. the utility model discloses a be provided with driving motor, rotating wheel, backup pad, axis of rotation, rack and deflector, when the power amplifier was used, driving motor rotated and can drive the backup pad through rotating the wheel and reciprocate to make the rack of backup pad one side and the rack toothing on the axis of rotation, made the fin open and dispel the heat, when the power amplifier was not used, driving motor reversed, can closed the fin, can avoid the air to get into in the engine body shell from the heat dissipation window;

3. the utility model discloses utilize a driving motor to drive opening or closing of fin and rotary disk simultaneously, not only can reduction in production cost, can reduce the inside heat dissipation capacity of engine body shell moreover, make things convenient for people's use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic view of a connection structure of the driven gear of the present invention.

Fig. 4 is a schematic structural view of the rotating wheel of the present invention.

Fig. 5 is a schematic side view of the heat dissipation window of the present invention.

Fig. 6 is another schematic side view of the heat dissipating window of the present invention.

The reference signs are: the machine comprises a machine body shell 1, a circuit board 2, a driving motor 3, a driving chain wheel 4, a rotating wheel 5, a chain 6, a driven chain wheel 7, a connecting shaft 8, a driving gear 9, a driven gear 10, a rotating shaft 11, a rotating disc 12, a filtering sieve plate 13, an iron mesh enclosure 14, a supporting plate 15, a first rack 16, a heat dissipation window 17, a heat dissipation plate 18, a rotating shaft 19, a fan 20, a supporting pad foot 21, a first heat dissipation hole 22, a second heat dissipation hole 23 and a guide plate 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The network digital power amplifier shown in fig. 1-3 comprises a machine body shell 1, a circuit board 2 is fixedly installed at the middle position inside the machine body shell 1, a driving motor 3 is fixedly installed at the middle position of the lower end of the circuit board 2, a rotating wheel 5 is fixedly arranged at the output end of the driving motor 3, a driving sprocket 4 is arranged on the output shaft of one of the driving motors 3, a chain 6 is arranged on the driving sprocket 4, the driving sprocket 4 is in transmission connection with a driven sprocket 7 through the chain 6, a connecting shaft 8 is fixedly arranged at the middle position of the driven sprocket 7, a driving gear 9 is fixedly arranged at one end of the connecting shaft 8, a driven gear 10 is meshed with one side of the upper end of the driving gear 9, a rotating shaft 11 is fixedly arranged at the upper end of the driven gear 10, and a rotating disc 12 is fixedly connected at the upper, the rotary disc 12 is arranged inside the top side wall of the machine body shell 1, the filtering sieve plate 13 is fixedly arranged below the rotary disc 12 inside the top side wall of the machine body shell 1, a heat dissipation opening is formed in the upper surface of the machine body shell 1, and an iron net cover 14 is arranged at the heat dissipation opening.

Further, the outer end of the machine body shell 1 is provided with a switch, an adjusting knob and a display screen, the bottom end of the machine body shell 1 is fixedly provided with a supporting pad foot 21, and the bottom end of the supporting pad foot 21 is provided with an anti-skid pad.

Further, the upper end of the rotating shaft 11 penetrates through the top side wall of the machine body shell 1 and the filtering sieve plate 13 to be fixedly connected with the rotating disc 12.

Further, a plurality of first heat dissipation holes 22 are uniformly formed in the filtering sieve plate 13 at intervals, and a plurality of second heat dissipation holes 23 are uniformly formed in the rotating disk 12 at intervals.

Further, the number of the first heat dissipation holes 22 is the same as that of the second heat dissipation holes 23, and the sizes of the first heat dissipation holes 22 are matched with those of the second heat dissipation holes 23.

Further, the iron mesh enclosure 14 is disposed outside the rotating disc 12, and a fan 20 is fixedly mounted inside the machine body housing 1.

The implementation mode is specifically as follows: when the power amplifier is used, the driving motor 3 is turned on, the driving motor 3 starts to drive the driving sprocket 4 to rotate, the driving sprocket 4 drives the driven sprocket 7 to rotate through the chain 6, the driven sprocket 7 can drive the driving gear 9 to rotate through the connecting shaft 8 when rotating, the driving gear 9 is meshed with the driven gear 10, the driven gear 10 can drive the rotating disc 12 to rotate through the rotating shaft 11, so that the second heat dissipation holes 23 on the rotating disc 12 are overlapped with the first heat dissipation holes 22 on the filtering sieve plate 13, external air can enter the machine body shell 1, heat inside the machine body shell 1 is taken out, when the power amplifier is not used, the driving motor 3 is reversely rotated, the rotating disc 12 reversely rotates, the second heat dissipation holes 23 on the rotating disc 12 and the first heat dissipation holes 22 on the filtering sieve plate 13 can be mutually staggered, and dust in the air can be prevented from, this embodiment has specifically solved when the power amplifier does not use, and the dust in the air gets into the power amplifier inside easily, influences the normal use of power amplifier.

According to the network digital power amplifier shown in fig. 4-6, a supporting plate 15 is rotatably disposed on one side of the rotating wheel 5 away from the driving motor 3, a first rack 16 is fixedly disposed on one side of the supporting plate 15 away from the driving motor 3, heat dissipation windows 17 are respectively mounted in the side walls of the left end and the right end of the machine body shell 1, each heat dissipation window 17 comprises a heat dissipation fin 18, one end of each heat dissipation fin 18 is fixedly disposed on a rotating shaft 19, the two ends of each rotating shaft 19 are rotatably disposed on the side walls of the machine body shell 1, and a second rack is disposed in the middle of each rotating shaft 19.

Further, all fixedly on the lateral wall at both ends about engine body shell 1 is provided with deflector 24, just the both ends of backup pad 15 slide and set up inboard at deflector 24.

Further, the driving motor 3 is a double-shaft servo motor, and the first rack 16 is matched with the second rack.

The implementation mode is specifically as follows: when driving motor 3 forward rotates, can drive and rotate wheel 5 and rotate, when rotating wheel 5 and rotating, can make backup pad 15 move down along deflector 24, the meshing of the first rack 16 and the second rack on the axis of rotation 19 of backup pad 15 one side, so when backup pad 15 moves down, axis of rotation 19 drives fin 18 and rotates clockwise, thereby make fin 18 open, make things convenient for the inside thermal effluvium of engine body shell 1, when driving motor 3 antiport, backup pad 15 moves up along deflector 24, can close fin 18, when avoiding not using, the dust enters into engine body shell 1 inside from radiator window 17.

The utility model discloses the theory of operation: when the power amplifier is used, the driving motor 3 rotates forwards, the driving motor 3 can drive the driving chain wheel 4 and the rotating wheel 5 to rotate simultaneously, the rotating disk 12 and the radiating fins 18 can be opened simultaneously, the fan 20 is used for sucking outside cold air into the engine body shell 1, the sucked air is filtered through the filtering sieve plate 13, and then the cold air drives heat inside the engine body shell 1 to be radiated from the radiating window 17; when the power amplifier is not used, the driving motor 3 rotates reversely, the rotating disk 12 and the radiating fins 18 can be closed at the same time, and dust in the air can be prevented from entering the machine body shell 1.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a network digital power amplifier, includes engine body shell (1), the inside intermediate position fixed mounting of engine body shell (1) has circuit board (2), its characterized in that: the lower end middle position of the circuit board (2) is fixedly provided with a driving motor (3), the output end of the driving motor (3) is fixedly provided with a rotating wheel (5), one of the rotating wheel and the driving chain wheel is arranged on the output shaft of the driving motor (3), a chain (6) is arranged on the driving chain wheel (4), the driving chain wheel (4) is in transmission connection with a driven chain wheel (7) through the chain (6), the middle position of the driven chain wheel (7) is fixedly provided with a connecting shaft (8), one end of the connecting shaft (8) is fixedly provided with a driving gear (9), one side of the upper end of the driving gear (9) is meshed with a driven gear (10), the upper end of the driven gear (10) is fixedly provided with a rotating shaft (11), the upper end of the rotating shaft (11) is fixedly connected with a rotating disc (12), and the rotating disc (12) is arranged inside the, a filtering sieve plate (13) is fixedly arranged in the side wall of the top end of the machine body shell (1) below the rotating disc (12), the upper surface of the machine body shell (1) is provided with a heat dissipation opening, an iron net cover (14) is arranged at the heat dissipation opening, a supporting plate (15) is rotatably arranged on one side of the rotating wheel (5) far away from the driving motor (3), a first rack (16) is fixedly arranged on one side of the supporting plate (15) far away from the driving motor (3), the side walls at the left end and the right end of the machine body shell (1) are internally provided with heat dissipation windows (17), the heat dissipation window (17) comprises a heat dissipation fin (18), one end of the heat dissipation fin (18) is fixedly arranged on the rotating shaft (19), the both ends of axis of rotation (19) all rotate the setting on the lateral wall of body shell (1), the intermediate position of axis of rotation (19) all is provided with the second rack.

2. A network digital power amplifier as claimed in claim 1, wherein: the outer end of the machine body shell (1) is provided with a switch, an adjusting knob and a display screen, the bottom end of the machine body shell (1) is fixedly provided with a supporting pad foot (21), and the bottom end of the supporting pad foot (21) is provided with an anti-skid pad.

3. A network digital power amplifier as claimed in claim 1, wherein: the driving motor (3) is a double-shaft servo motor, and the first rack (16) is matched with the second rack.

4. A network digital power amplifier as claimed in claim 1, wherein: the upper end of the rotating shaft (11) penetrates through the side wall of the top end of the machine body shell (1) and the filtering sieve plate (13) to be fixedly connected with the rotating disc (12).

5. A network digital power amplifier as claimed in claim 1, wherein: a plurality of first heat dissipation holes (22) are uniformly formed in the filtering sieve plate (13) at intervals, and a plurality of second heat dissipation holes (23) are uniformly formed in the rotating plate (12) at intervals.

6. The network digital power amplifier as claimed in claim 5, wherein: the number of the first heat dissipation holes (22) is the same as that of the second heat dissipation holes (23), and the sizes of the first heat dissipation holes (22) are matched with those of the second heat dissipation holes (23).

7. A network digital power amplifier as claimed in claim 1, wherein: all fixedly on the lateral wall at both ends about engine body shell (1) be provided with deflector (24), just the both ends of backup pad (15) slide and set up at deflector (24) inboardly.

8. A network digital power amplifier as claimed in claim 1, wherein: the iron net cover (14) is arranged on the outer side of the rotating disc (12), and the fan (20) is fixedly mounted inside the machine body shell (1).