Noise reduction structure of low-environment-temperature variable-frequency air source heat pump unit

Abstract

The utility model relates to the technical field of noise reduction, and discloses a noise reduction structure of a low-environment-temperature variable-frequency air source heat pump unit, which comprises a U-shaped sound insulation plate, a mounting device is arranged above the U-shaped sound insulation plate, and the mounting device comprises a mounting part; the mounting part comprises a cover plate, a pedal, a fixing plate and a clamping plate, and the fixing plate is arranged on the outer surface of the clamping plate in a sliding and sleeving mode. According to the noise reduction structure of the low-environment-temperature variable-frequency air source heat pump unit, the cover plate, the pedal, the fixing plate, the elastic rod, the clamping plate and the rolling wheels are arranged, the U-shaped sound insulation plate is clamped by the clamping plate through the elastic force of the elastic rod, the U-shaped sound insulation plate is kept relatively stable, and when the air source heat pump unit is repaired and maintained, the pedal is treaded downwards to drive the clamping plate to move downwards; the two U-shaped sound insulation plates can be opened leftwards and rightwards respectively, and the operation is simple; by arranging the connecting columns and the hollow pipes, splicing is conducted through the hollow pipes and the UI connecting columns, the upper cover plate and the lower cover plate can be conveniently installed and spliced, and the device framework is kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction, in particular to a noise reduction structure of a low ambient temperature variable frequency air source heat pump unit. Background Art

[0002] An air source heat pump is an energy-saving device that uses high-level energy to make heat flow from a low-level heat source to a high-level heat source. When the air source heat pump unit is in operation, it will cause noise due to the operation of the internal machinery and the rotation of the fan, which will cause certain noise pollution to the surrounding environment.

[0003] A Chinese patent discloses a noise reduction cover for an air source heat pump unit, with the publication number CN210625011U, comprising a noise reduction cover assembly and a top cover, wherein the noise reduction cover assembly comprises a left half cover and a right half cover, wherein a plug-in plate is provided on the plane where the right half cover contacts the left half cover, and a slot matching the plug-in plate is provided on the left half cover, wherein the plug-in plate is fixed in the slot; a foam rubber layer and a sound-absorbing layer are respectively laid on the inner walls of the left half cover and the right half cover; a threaded tube is provided on the front and rear plates of the left half cover and the right half cover, wherein a threaded rod is connected to the inner thread of the threaded tube, and a top block is provided on one end of the threaded rod placed inside the noise reduction cover assembly; a groove is provided at the lower end of the top cover, wherein the top ends of the left half cover and the right half cover are inserted into the groove, and the outer walls of the left half cover and the right half cover are in contact with the inner walls of the groove. The utility model is easy to install and disassemble, and the noise reduction cover assembly can be fixed on the air source heat pump through the threaded rod and the top block, so that the noise reduction cover can be stably fixed on the air source heat pump, and the noise can be absorbed by the foam rubber layer and the sound-absorbing layer.

[0004] However, it still has the following disadvantages: the device uses the connection between the lock plate and the buckle plate to realize the assembly of the device, but when the air source heat pump unit needs to be maintained, the entire device needs to be dismantled to maintain the air source heat pump unit, which is very cumbersome. To this end, we proposed a low ambient temperature variable frequency air source heat pump unit noise reduction structure to solve this problem. Utility Model Content

[0005] The utility model aims to provide a noise reduction structure for a low ambient temperature variable frequency air source heat pump unit to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a low ambient temperature variable frequency air source heat pump unit noise reduction structure, comprising a U-shaped sound insulation board, a mounting device is arranged above the U-shaped sound insulation board, and the mounting device comprises a mounting part;

[0007] The mounting portion includes a cover plate, a pedal, a fixing plate and a card plate, wherein the fixing plate is slidably sleeved on the outer surface of the card plate, the outer surface of the fixing plate is fixedly connected to the front surface of the lower cover plate, the top surface of the pedal is fixedly connected to the bottom surface of the card plate, a card slot is provided on the front surface of the U-shaped sound insulation board, and the outer surface of the rear end of the card plate extends into the inside of the card slot and is carded to the inner wall of the card slot;

[0008] A ventilation portion is provided above the U-shaped sound insulation board;

[0009] The ventilation part includes a ventilation pipe and a silencer. Four ventilation pipes are provided. The outer surface of the silencer is fixedly connected to the inner wall of the ventilation pipe. Two groups of silencers are provided from left to right. Each group of silencers is arranged parallel to each other, and the angle between the adjacent silencers on the left and right is an obtuse angle.

[0010] A further improvement is that the mounting portion further comprises a connecting column, a hollow tube, an elastic rod and a roller, the outer surface of the cover plate is provided with a mounting groove, the outer surface of the U-shaped sound insulation board extends into the interior of the mounting groove and is slidably connected to the inner wall of the mounting groove, the two U-shaped sound insulation boards are staggered front to back, and by setting up two U-shaped sound insulation boards and unfolding the two U-shaped sound insulation boards to the left and right sides, the air source heat pump unit inside the device can be repaired and maintained.

[0011] A further improvement is that mounting grooves are provided on the upper and lower end surfaces of the U-shaped sound insulation board, the outer surface of the roller extends into the interior of the mounting groove, and the outer surface of the roller is rotatably connected to the inner wall of the mounting groove via a bearing seat. By providing the roller, the U-shaped sound insulation board can be easily opened and closed.

[0012] A further improvement is that the outer surface of the connecting column extends to the inside of the cover plate, the outer surface of the connecting column is fixedly connected to the inner wall of the cover plate, the hollow tube is slidably sleeved on the outer surface of the connecting column, the upper and lower end surfaces of the hollow tube are in contact with the inner wall of the cover plate, and bolts are provided on the hollow tube. By arranging the hollow tube and the connecting column, it is convenient to connect the upper and lower cover plates.

[0013] A further improvement is that the bottom end of the elastic rod is fixedly connected to the top surface of the fixed plate, and the top end of the elastic rod is fixedly connected to the front surface of the card plate. By arranging the elastic rod, the fixed plate, the pedal and the card plate, the elastic force of the elastic rod is utilized to position the U-shaped sound insulation board.

[0014] A further improvement is that the ventilation part also includes a T-shaped air duct, and ventilation holes are opened on the outer surfaces of the two U-shaped sound insulation panels. The bottom surface of the T-shaped air duct is fixedly passed through the top surface of the upper cover plate and extends to the inner side of the upper cover plate. By arranging the T-shaped air duct and ventilation holes, air circulation inside and outside the device is facilitated.

[0015] A further improvement is that the outer surfaces of the two upper ventilation ducts are fixedly connected to the outer surface of the T-shaped air duct, and the outer surfaces of the two lower ventilation ducts are fixedly passed through the ventilation holes on the U-shaped sound insulation board and extend to the inner side of the U-shaped sound insulation board. By arranging ventilation ducts and silencer plates, it is convenient to silence the ventilation part of the device.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the noise reduction structure of the low ambient temperature variable frequency air source heat pump unit, by arranging a cover plate, a pedal, a fixing plate, an elastic rod, a card plate and a roller, utilizes the elastic force of the elastic rod to make the card plate clamp the U-shaped sound insulation board, so that the U-shaped sound insulation board remains relatively stable. When repairing and maintaining the air source heat pump unit, the pedal is pressed down to drive the card plate to move downward, and the two U-shaped sound insulation boards can be opened to the left and right respectively, which is simple to operate; by arranging connecting columns and hollow tubes, the hollow tube UI connecting columns are used for splicing, which facilitates the installation and splicing of the upper and lower cover plates, so that the device skeleton remains stable; by arranging T-shaped air ducts, ventilation pipes and silencers, the T-shaped air ducts and ventilation pipes are used to facilitate the circulation of air inside and outside the device, the heat dissipation inside the device is convenient, and the silencer is used to silence the wind body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the three-dimensional structure of the installation device of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the lower cover plate structure of the utility model;

[0020] Figure 4 It is a left side cross-sectional view of the three-dimensional structure of the installation device of the utility model;

[0021] Figure 5 for Figure 4 A magnified view of the structure in the middle.

[0022] In the figure: 1 U-type sound insulation board, 3 mounting device, 31 ventilation part, 32 mounting part, 311 T-type air duct, 312 ventilation duct, 313 silencer, 321 cover plate, 322 connecting column, 323 hollow tube, 324 pedal, 325 fixing plate, 326 elastic rod, 327 clamping plate, 328 roller. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5 , the utility model provides a technical solution: a low ambient temperature variable frequency air source heat pump unit noise reduction structure, including a U-shaped sound insulation board 1, a mounting device 3 is arranged above the U-shaped sound insulation board 1, and the mounting device 3 includes a mounting portion 32;

[0025] The mounting portion 32 includes a cover plate 321, a pedal 324, a fixing plate 325 and a clamping plate 327. The fixing plate 325 is slidably sleeved on the outer surface of the clamping plate 327. The outer surface of the fixing plate 325 is fixedly connected to the front of the lower cover plate 321. The top surface of the pedal 324 is fixedly connected to the bottom surface of the clamping plate 327. A clamping groove is provided on the front of the U-shaped sound insulation board 1. The outer surface of the rear end of the clamping plate 327 extends into the inside of the clamping groove and is clamped to the inner wall of the clamping groove. The mounting portion 32 also includes a connecting column 322, a hollow tube 323, an elastic rod 326 and a roller 328.

[0026] The outer surface of the cover plate 321 is provided with an installation slot, the outer surface of the U-shaped sound insulation board 1 extends into the inside of the installation slot and is slidably connected to the inner wall of the installation slot, the two U-shaped sound insulation boards 1 are staggered front and back, the bottom end of the elastic rod 326 is fixedly connected to the top surface of the fixing plate 325, and the top end of the elastic rod 326 is fixedly connected to the front surface of the clamping plate 327;

[0027] The upper and lower end surfaces of the U-shaped sound insulation board 1 are both provided with mounting grooves, and the outer surface of the roller 328 extends into the interior of the mounting groove. The outer surface of the roller 328 is rotatably connected to the inner wall of the mounting groove through a bearing seat. By arranging the cover plate 321, the pedal 324, the fixing plate 325, the elastic rod 326, the clamping plate 327 and the roller 328, the elastic force of the elastic rod 326 is utilized to make the clamping plate 327 clamp the U-shaped sound insulation board 2, so that the U-shaped sound insulation board 2 remains relatively stable. When the air source heat pump unit is repaired and maintained, the pedal 324 is stepped down to drive the clamping plate 327 to move downward, so that the two U-shaped sound insulation boards 1 can be opened to the left and right respectively, and the operation is simple;

[0028] The outer surface of the connecting column 322 extends to the inside of the cover plate 321, and the outer surface of the connecting column 322 is fixedly connected to the inner wall of the cover plate 321. The hollow tube 323 is slidably sleeved on the outer surface of the connecting column 322. The upper and lower end surfaces of the hollow tube 323 are in contact with the inner wall of the cover plate 321. Bolts are provided on the hollow tube 323. By providing the connecting column 322 and the hollow tube 323, the hollow tube 323UI connecting column 322 are spliced, which facilitates the installation and splicing of the upper and lower cover plates 321, so that the device skeleton remains stable;

[0029] A ventilation portion 31 is provided above the U-shaped sound insulation board 1;

[0030] The ventilation part 31 includes a ventilation pipe 312 and a sound-absorbing sheet 313. Four ventilation pipes 312 are provided. The outer surface of the sound-absorbing sheet 313 is fixedly connected to the inner wall of the ventilation pipe 312. Two groups of sound-absorbing sheets 313 are provided from left to right. Each group of sound-absorbing sheets 313 is arranged parallel to each other. The angle between the left and right adjacent sound-absorbing sheets 313 is an obtuse angle. The ventilation part 31 also includes a T-shaped air duct 311. The outer surfaces of the two U-shaped sound insulation boards 1 are provided with ventilation holes. The bottom surface of the T-shaped air duct 311 is fixedly penetrated through the top surface of the upper cover plate 321 and extends to the inner side of the upper cover plate 321.

[0031] The outer surfaces of the two upper ventilation ducts 312 are fixedly connected to the outer surface of the T-shaped air duct 311, and the outer surfaces of the two lower ventilation ducts 312 are fixedly penetrated through the ventilation holes on the U-shaped sound insulation board 1 and extend to the inner side of the U-shaped sound insulation board 1. By arranging the T-shaped air duct 311, the ventilation duct 312 and the silencer 313, the T-shaped air duct 311 and the ventilation duct 312 are utilized to facilitate the circulation of air inside and outside the device, facilitate the heat dissipation inside the device, and utilize the silencer 313 to silence the wind.

[0032] During use, when repairing the air source heat pump unit, step down on the pedal 324, the pedal 324 drives the card plate 327 to move downward, so that the card plate 327 no longer positions the U-shaped sound insulation board 1, and the two U-shaped sound insulation boards 1 are opened to the left and right respectively, and the air source heat pump unit can be repaired and maintained.

[0033] Although the 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 low ambient temperature variable frequency air source heat pump unit noise reduction structure, comprising a U-shaped sound insulation board (1), characterized in that: A mounting device (3) is provided above the U-shaped sound insulation board (1), and the mounting device (3) comprises a mounting portion (32); The mounting portion (32) comprises a cover plate (321), a pedal (324), a fixing plate (325) and a clamping plate (327); the fixing plate (325) is slidably sleeved on the outer surface of the clamping plate (327); the outer surface of the fixing plate (325) is fixedly connected to the front of the lower cover plate (321); the top surface of the pedal (324) is fixedly connected to the bottom surface of the clamping plate (327); a clamping groove is provided on the front of the U-shaped sound insulation board (1); the outer surface of the rear end of the clamping plate (327) extends into the interior of the clamping groove and is clamped to the inner wall of the clamping groove; A ventilation portion (31) is provided above the U-shaped sound insulation board (1); The ventilation part (31) comprises a ventilation pipe (312) and a sound-absorbing sheet (313), four ventilation pipes (312) are provided, the outer surface of the sound-absorbing sheet (313) is fixedly connected to the inner wall of the ventilation pipe (312), and two groups of the sound-absorbing sheets (313) are provided from left to right, each group of the sound-absorbing sheets (313) are arranged parallel to each other, and the angle between the adjacent sound-absorbing sheets (313) on the left and right is an obtuse angle.

2. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 1, characterized in that: The mounting portion (32) further comprises a connecting column (322), a hollow tube (323), an elastic rod (326) and a roller (328); the outer surface of the cover plate (321) is provided with a mounting groove; the outer surface of the U-shaped sound insulation board (1) extends into the interior of the mounting groove and is slidably connected to the inner wall of the mounting groove; the two U-shaped sound insulation boards (1) are staggered in front and back.

3. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 2, characterized in that: The upper and lower end surfaces of the U-shaped sound insulation board (1) are both provided with mounting grooves, the outer surface of the roller (328) extends into the interior of the mounting groove, and the outer surface of the roller (328) is rotatably connected to the inner wall of the mounting groove via a bearing seat.

4. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 2, characterized in that: The outer surface of the connecting column (322) extends to the inside of the cover plate (321), and the outer surface of the connecting column (322) is fixedly connected to the inner wall of the cover plate (321). The hollow tube (323) is slidably sleeved on the outer surface of the connecting column (322), and the upper and lower end surfaces of the hollow tube (323) are in contact with the inner wall of the cover plate (321), and bolts are provided on the hollow tube (323).

5. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 2, characterized in that: The bottom end of the elastic rod (326) is fixedly connected to the top surface of the fixing plate (325), and the top end of the elastic rod (326) is fixedly connected to the front surface of the clamping plate (327).

6. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 1, characterized in that: The ventilation portion (31) further comprises a T-shaped air duct (311), the outer surfaces of the two U-shaped sound insulation boards (1) are provided with ventilation holes, and the bottom surface of the T-shaped air duct (311) is fixedly passed through the top surface of the upper cover plate (321) and extends to the inner side of the upper cover plate (321).

7. A low ambient temperature variable frequency air source heat pump unit noise reduction structure according to claim 6, characterized in that: The outer surfaces of the two upper ventilation pipes (312) are fixedly connected to the outer surface of the T-shaped air duct (311), and the outer surfaces of the two lower ventilation pipes (312) are fixedly passed through the ventilation holes on the U-shaped sound insulation board (1) and extend to the inner side of the U-shaped sound insulation board (1).

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