Air source total heat recovery heat pump unit

Abstract

The invention relates to the technical field of recovery heat pump units, in particular to an air source total heat recovery heat pump unit which comprises a machine body and a fan arranged at the top of the machine body, evaporator fins are further arranged in the machine body, and the evaporator fins are located below the fan; the recovery heat pump unit further comprises brush bodies arranged in the unit body, and the brush bodies are symmetrically arranged and make contact with the inner surfaces of fins of the evaporator. A rotary driver and a reciprocating linkage assembly are arranged outside the machine body, the rotary driver is in transmission connection with the fan, the output end of the reciprocating linkage assembly is connected with the brush body, and a clutch control mechanism is arranged on the reciprocating linkage assembly. Dust accumulated on the fins can be effectively removed through the brush body, the evaporator fins are kept clean, and therefore it is guaranteed that the heat exchange process is more efficient; the clean fins can be in better contact with air, higher heat transfer efficiency is provided, and the overall energy efficiency of the system is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of recovery heat pump units, and more particularly to an air-source total heat recovery heat pump unit. Background Art

[0002] An air-source heat pump unit is a device that provides refrigeration or heating by utilizing the heat in ambient air, and is widely used to meet the needs of users for domestic hot water, floor heating, air conditioning, etc. During its operation, the fins of the unit exchange heat with the surrounding air. However, impurities, particulate matters, dust, etc. in the air are likely to deposit on the surface of the fins. Over time, these deposits accumulate, which may cause the internal channels of the fins to become narrower or even completely blocked, thus seriously affecting the heat exchange efficiency.

[0003] In addition, under the conditions of high ambient humidity or high temperature, water vapor is likely to condense on the surface of the fins and freeze to form frost over time; when the fins are frosted, the device usually starts the defrosting function to defrost; however, if the fins are not properly maintained or the deposits accumulate too much, it will cause the fins to become dirty and blocked, and then the defrosting function fails, resulting in waste of equipment energy consumption. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an air-source total heat recovery heat pump unit to solve the technical problem that excessive accumulation of deposits on the evaporator fins of the air-source heat pump causes the defrosting function to fail and results in waste of equipment energy consumption.

[0005] Based on the above purpose, the present invention provides an air-source total heat recovery heat pump unit, which includes a body and a fan arranged on the top of the body. An evaporator fin is also arranged inside the body, and the evaporator fin is located below the fan; There are two evaporator fins, which are arranged in an inverted trapezoid shape. The recovery heat pump unit also includes a brush body arranged inside the body. The brush body is symmetrically arranged and contacts the inner surface of the evaporator fin; A rotary drive and a reciprocating linkage assembly are arranged outside the body. The rotary drive is in transmission connection with the fan, the output end of the reciprocating linkage assembly is connected to the brush body, and a clutch control mechanism is arranged on the reciprocating linkage assembly for controlling the connection between the stress end of the reciprocating linkage assembly and the output end of the rotary drive.

[0006] Preferably, the brush body includes a support housing and a brush plate. A chute is arranged on one side of the support housing. The surface of the brush plate is distributed with bristles. The brush plate is slidably inserted into the chute and fixedly connected to the support housing through bolts; One end of the support housing is provided with a connecting rod, and the connecting rod is connected to the output end of the reciprocating linkage assembly.

[0007] Preferably, the interior of the support housing is of a hollow structure, the connecting rod is of a hollow tube structure and is in communication with the interior of the support housing, the recovery heat pump unit further includes a dust suction device arranged outside the machine body, and the suction end of the dust suction device is in communication with the outer end of the connecting rod; A plurality of dust suction heads are distributed and arranged on the top wall of the support housing, and the dust suction heads are in communication with the interior of the support housing.

[0008] Preferably, the rotary drive includes a servo motor arranged outside the machine body, a first synchronous pulley is arranged on the output shaft of the servo motor, a second synchronous pulley is arranged on the fan force receiving shaft distributed on the top wall of the machine body, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt for transmission.

[0009] Preferably, the reciprocating linkage assembly includes a guiding frame arranged on the outer wall of the machine body and a rectangular block slidably arranged in the guiding frame. The guiding frame corresponds to a brush body symmetrically arranged inside the machine body. A notch is formed on the outer wall of the machine body corresponding to the sliding direction of the guiding frame, and a rectangular block is sleeved and fixed on the exposed part of the connecting rod extending out of the machine body; The reciprocating linkage assembly further includes a longitudinal slide rail arranged on the outer wall of the machine body. A first slider is arranged on the longitudinal slide rail, and the first slider is slidably connected to the longitudinal slide rail. A second slider is arranged on the first slider, and the second slider forms a transverse sliding connection with the first slider; A driving assembly is arranged on the outer wall of the machine body. The driving assembly is located between two guiding frames. A connecting piece is rotatably arranged on the second slider, and the connecting piece is connected to the output end of the driving assembly. The driving assembly is used to control the connecting piece to move longitudinally in a reciprocating manner; A transmission rod is fixedly arranged on the first slider, and a clamping seat is arranged on the exposed part of the connecting rod extending out of the machine body and is slidably connected to the transmission rod.

[0010] Preferably, the driving assembly includes a support frame fixedly arranged on the outer wall of the machine body, and a first gear and a second gear arranged at the upper and lower ends of the support frame. Both the first gear and the second gear are rotatably connected to the support frame, and the first gear and the second gear are connected by a chain for transmission. The connecting piece is connected to the chain through a fastener; A linkage rod is rotatably arranged on the support frame. A first bevel gear is arranged at the bottom end of the linkage rod, and a second bevel gear is arranged at the wheel shaft of the first gear. The first bevel gear and the second bevel gear are meshed with each other; The clutch control mechanism is arranged on the support frame and is used for the transmission connection and disconnection between the linkage rod and the output shaft of the servo motor.

[0011] Preferably, the clutch control mechanism includes a sliding support and a fixed support. The sliding support is arranged at the top end of the linkage rod and is slidably connected to it through a keyway fit; Friction plates are provided on the surfaces of the fixed support and the sliding support; The clutch control mechanism further includes a connecting frame and a double-acting cylinder. The double-acting cylinder is fixedly installed on the support frame. One end of the connecting frame is rotatably connected to the sliding support, and the other end of the connecting frame is connected to the output end of the double-acting cylinder.

[0012] Preferably, the dust suction device includes a box body and a suction fan arranged outside the machine body. The box body has an air inlet and an air outlet. An inner frame body is inserted and installed inside the box body. A filter element is installed on the inner frame body, and the filter element covers the air outlet of the box body; The suction fan is installed on the box body, and the air outlet pipe of the suction fan is connected to the air inlet of the box body. The air inlet pipe of the suction fan is connected to the outer end of the connecting pipe body through a hose.

[0013] Advantages of the present invention: With the brush body of the present invention, the dust accumulated on the fins can be effectively removed, keeping the fins of the evaporator clean, thereby ensuring a more efficient heat exchange process; the clean fins can better contact the air, providing a higher heat transfer efficiency and further improving the overall energy efficiency of the system; while ensuring the long-term efficient operation of the equipment, the maintenance difficulty is reduced and the maintenance cost is decreased, enhancing the stability and reliability of the equipment. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is an internal structure schematic diagram of the present invention; Figure 3 is Figure 2 an enlarged view of part A of Figure 4 is a three-dimensional structure schematic diagram of the brush body of the present invention; Figure 5 is a structural schematic diagram of the fan, rotary drive and dust suction device of the present invention Figure 1 ; Figure 6 is a structural schematic diagram of the fan, rotary drive and dust suction device of the present invention Figure 2 ; Figure 7 is a side view of the present invention; Figure 8 is a partial structure schematic diagram of the present inventionFigure 1 ; Figure 9 is a schematic diagram of the local structure of the present invention Figure 2 。

[0016] The reference numerals in the figure are as follows: 1 - body; 2 - fan; 3 - evaporator fin; 4 - brush body; 41 - support housing; 411 - connecting rod; 42 - brush plate; 43 - dust suction head; 5 - rotary drive; 51 - servo motor; 52 - first synchronous pulley; 53 - second synchronous pulley; 6 - reciprocating linkage assembly; 61 - guiding frame; 62 - rectangular block; 63 - longitudinal slide rail; 64 - first slider; 641 - transmission rod; 642 - clamping seat; 65 - second slider; 651 - connecting piece; 66 - drive assembly; 661 - support frame; 662 - first gear; 663 - second gear; 664 - linkage rod; 665 - first bevel gear; 666 - second bevel gear; 7 - clutch control mechanism; 71 - sliding support; 72 - fixed support; 73 - friction plate; 74 - connecting frame; 75 - double - acting cylinder; 8 - dust suction device; 81 - hose; 82 - exhaust fan; 83 - box body; 84 - inner frame body. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] In the first aspect of the present invention, an air - source total heat recovery heat pump unit is proposed, as Figures 1 to 9 shown, which includes a body 1 and a fan 2 arranged on the top of the body 1. An evaporator fin 3 is also arranged inside the body 1, and the evaporator fin 3 is located below the fan 2; The evaporator fins 3 are two in number and are arranged in an inverted trapezoid shape. The recovery heat pump unit further includes a brush body 4 disposed inside the body 1. The brush body 4 is symmetrically arranged and contacts the inner surface of the evaporator fins 3. A rotary drive 5 and a reciprocating linkage assembly 6 are disposed outside the body 1. The rotary drive 5 is in transmission connection with the fan 2, and the output end of the reciprocating linkage assembly 6 is connected to the brush body 4. A clutch control mechanism 7 is arranged on the reciprocating linkage assembly 6 for controlling the connection between the force-receiving end of the reciprocating linkage assembly 6 and the output end of the rotary drive 5.

[0020] Furthermore: The brush body 4 includes a support housing 41 and a brush plate 42. A chute is arranged on one side of the support housing 41. Brush bristles are distributed on the surface of the brush plate 42. The brush plate 42 is slidably inserted into the chute and fixedly connected to the support housing 41 by bolts. One end of the support housing 41 is provided with a connecting rod 411, and the connecting rod 411 is connected to the output end of the reciprocating linkage assembly 6.

[0021] The brush bristles are made of nylon material or polypropylene but are not limited thereto.

[0022] Furthermore: The interior of the support housing 41 is of a hollow structure. The connecting rod 411 is of a hollow tube structure and is in communication with the interior of the support housing 41. The recovery heat pump unit further includes a dust suction device 8 disposed outside the body 1, and the suction end of the dust suction device 8 is in communication with the outer end of the connecting rod 411. A plurality of dust suction heads 43 are distributed on the top wall of the support housing 41, and the dust suction heads 43 are in communication with the interior of the support housing 41.

[0023] Furthermore: The rotary drive 5 includes a servo motor 51 disposed outside the body 1. A first synchronous pulley 52 is arranged on the output shaft of the servo motor 51. A second synchronous pulley 53 is arranged on the force-receiving shaft of the fan 2 distributed on the top wall of the body 1. The first synchronous pulley 52 and the second synchronous pulley 53 are in transmission connection through a synchronous belt.

[0024] Furthermore: The reciprocating linkage assembly 6 includes a guide frame 61 disposed on the outer wall of the body 1 and a rectangular block 62 slidably disposed inside the guide frame 61. The guide frame 61 corresponds to the brush body 4 symmetrically arranged inside the body 1. A notch is formed on the outer wall of the body 1 corresponding to the sliding direction of the guide frame 61. The exposed part of the connecting rod 411 extending out of the body 1 is sleeved and fixed with the rectangular block 62. The reciprocating linkage assembly 6 further includes a longitudinal slide rail 63, the longitudinal slide rail 63 is arranged on the outer wall of the machine body 1, a first slider 64 is arranged on the longitudinal slide rail 63, the first slider 64 is slidably connected with the longitudinal slide rail 63, a second slider 65 is arranged on the first slider 64, and the second slider 65 forms a transverse sliding connection with the first slider 64; A driving assembly 66 is arranged on the outer wall of the machine body 1, the driving assembly 66 is located between two guiding frames 61, a connecting piece 651 is rotatably arranged on the second slider 65, the connecting piece 651 is connected with the output end of the driving assembly 66, and the driving assembly 66 is used for controlling the connecting piece 651 to perform longitudinal reciprocating movement; A transmission rod 641 is fixedly arranged on the first slider 64, and a clamping seat 642 is arranged on the exposed part of the connecting rod 411 extending out of the machine body 1 and is slidably connected with the transmission rod 641.

[0025] Furthermore: The driving assembly 66 includes a support frame 661 fixedly arranged on the outer wall of the machine body 1, and a first gear 662 and a second gear 663 arranged at the upper and lower ends of the support frame 661. The first gear 662 and the second gear 663 are both rotatably connected with the support frame 661, and the first gear 662 and the second gear 663 are connected by chain drive. The connecting piece 651 is connected with the chain through a fastener; A linkage rod 664 is rotatably arranged on the support frame 661, a first bevel gear 665 is arranged at the bottom end of the linkage rod 664, a second bevel gear 666 is arranged at the wheel shaft of the first gear 662, and the first bevel gear 665 and the second bevel gear 666 are meshed with each other; The clutch control mechanism 7 is arranged on the support frame 661, and the clutch control mechanism 7 is used for the transmission connection and disconnection between the linkage rod 664 and the output shaft of the servo motor 51.

[0026] Furthermore: The clutch control mechanism 7 includes a sliding support 71 and a fixed support 72. The sliding support 71 is arranged at the top end of the linkage rod 664 and is slidably connected with it through keyway fit; Friction plates 73 are arranged on the surfaces of the fixed support 72 and the sliding support 71; The clutch control mechanism 7 further includes a connecting frame 74 and a double-acting cylinder 75. The double-acting cylinder 75 is fixedly installed on the support frame 661. One end of the connecting frame 74 is rotatably connected with the sliding support 71, and the other end of the connecting frame 74 is connected with the output end of the double-acting cylinder 75.

[0027] The friction plates 73 are made of asbestos or ceramic materials.

[0028] Furthermore: The dust suction device 8 includes a box body 83 and a suction fan 82 disposed outside the machine body 1. The box body 83 has an air inlet and an air outlet. An inner frame body 84 is inserted and installed inside the box body 83. A filter element is installed on the inner frame body 84, and the filter element covers the air outlet of the box body 83. The suction fan 82 is installed on the box body 83, and the air outlet pipe of the suction fan 82 is connected to the air inlet of the box body 83. The air inlet pipe of the suction fan 82 is connected to the outer end of the pipe body of the connecting rod 411 through a hose 81.

[0029] In this embodiment, the brush body 4 will periodically clean the deposits on the surface of the evaporator fins 3 of the air source heat pump. During the non-cleaning period, the servo motor 51 in the rotary drive 5 drives the second synchronous pulley 53 installed on the force-bearing shaft of the fan 2 to rotate through the first synchronous pulley 52 and the synchronous belt, so that the fan 2 is in a normal operating state, ensuring the smoothness of the heat exchange process, thereby improving the heating or cooling efficiency of the equipment.

[0030] During the cleaning period, the servo motor 51 will be in a low-speed state, and the output end of the double-acting cylinder 75 in the clutch control mechanism 7 will drive the sliding support 71 to rise through the connecting frame 74, prompting the friction plate 73 of the sliding support 71 to contact the friction plate 73 of the fixed support 72 to form a frictional force and transmit torque. The connecting rod 664 will be stressed and drive the second bevel gear 666 to rotate through the first bevel gear 665. The second bevel gear 666 will drive the first gear 662 to rotate. The first gear 662 will drive the chain to move in a racetrack shape, and the chain will drive the connecting piece 651 to move with it. Since "a second slider 65 is provided on the first slider 64, the second slider 65 forms a lateral sliding connection with the first slider 64, and a connecting piece 651 is rotatably provided on the second slider 65", the connecting piece 651 can smoothly move with the chain and drive the first slider 64 to perform a longitudinal reciprocating motion; Since the guiding frame 61 is inclined and the connecting rod 411 is slidably connected to the guiding frame 61 through the rectangular block 62, the first slider 64 drives the clamping seats 642 at both ends thereof to reciprocate along the corresponding guiding frame 61 through the transmission rod 641, and finally the two brush bodies 4 respectively perform cleaning operations on the inverted trapezoidal evaporator fins 3. During the cleaning operation, the suction fan 82 in the dust suction device 8 evacuates the inside of the support housing 41 to a negative pressure through the hose 81, and the suction head 43 sucks the attachments falling during the cleaning process of the evaporator fins 3. The attachments pass through the inside of the support housing 41 and the hose 81 in sequence, and finally enter the box body 83 for collection. It should be noted that the purpose of the cleaning period when the servo motor 51 is in a low-speed state is to make the movement of the brush body 4 at an appropriate speed and avoid the excessive influence of the airflow of the fan 2, resulting in an uncontrollable scattered state of the fallen attachments.

[0031] Those of ordinary skill in the art should understand that any discussion of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0032] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air source total heat recovery heat pump unit, including a body (1) and a fan (2) arranged on the top of the body (1). An evaporator fin (3) is also arranged inside the body (1), and the evaporator fin (3) is located below the fan (2). It is characterized in that There are two evaporator fins (3) which are arranged in an inverted trapezoid shape. The heat recovery heat pump unit also includes a brush body (4) arranged inside the body (1). The brush body (4) is symmetrically arranged and contacts the inner surface of the evaporator fin (3). A rotary drive (5) and a reciprocating linkage assembly (6) are arranged outside the body (1). The rotary drive (5) is in transmission connection with the fan (2). The output end of the reciprocating linkage assembly (6) is connected to the brush body (4). A clutch control mechanism (7) is arranged on the reciprocating linkage assembly (6) for controlling the connection between the stress end of the reciprocating linkage assembly (6) and the output end of the rotary drive (5).

2. The air source total heat recovery heat pump unit according to claim 1, characterized in that The brush body (4) includes a support housing (41) and a brush plate (42). A chute is arranged on one side of the support housing (41). Brush bristles are distributed on the surface of the brush plate (42). The brush plate (42) is slidably inserted into the chute and fixedly connected to the support housing (41) by bolts. A connecting rod (411) is arranged at one end of the support housing (41), and the connecting rod (411) is connected to the output end of the reciprocating linkage assembly (6).

3. The air source total heat recovery heat pump unit according to claim 2, characterized in that, The inside of the support housing (41) is of a hollow structure. The connecting rod (411) is a hollow pipe body structure and is communicated with the inside of the support housing (41). The heat recovery heat pump unit also includes a dust suction device (8) arranged outside the body (1), and the suction end of the dust suction device (8) is communicated with the outer end of the connecting rod (411). A plurality of dust suction heads (43) are distributed on the top wall of the support housing (41), and the dust suction heads (43) are communicated with the inside of the support housing (41).

4. An air source total heat recovery heat pump unit according to claim 1 or 2, characterized in that, The rotary drive (5) includes a servo motor (51) arranged outside the body (1). A first synchronous pulley (52) is arranged on the output shaft of the servo motor (51). A second synchronous pulley (53) is arranged on the stress shaft of the fan (2) distributed on the top wall of the body (1). The first synchronous pulley (52) and the second synchronous pulley (53) are in transmission connection through a synchronous belt.

5. The air source total heat recovery heat pump unit according to claim 4, characterized in that The reciprocating linkage assembly (6) includes a guiding frame (61) arranged on the outer wall of the body (1) and a rectangular block (62) slidably arranged inside the guiding frame (61). The guiding frame (61) corresponds to the symmetrically arranged brush body (4) inside the body (1). A notch is opened on the outer wall of the body (1) corresponding to the sliding direction of the guiding frame (61). The exposed part of the connecting rod (411) extending out of the body (1) is sleeved and fixed with the rectangular block (62). The reciprocating linkage assembly (6) further includes a longitudinal slide rail (63). The longitudinal slide rail (63) is arranged on the outer wall of the machine body (1). A first slider (64) is arranged on the longitudinal slide rail (63). The first slider (64) is slidably connected to the longitudinal slide rail (63). A second slider (65) is arranged on the first slider (64). The second slider (65) forms a transverse sliding connection with the first slider (64). A driving assembly (66) is arranged on the outer wall of the machine body (1). The driving assembly (66) is located between two guiding frames (61). A connecting piece (651) is rotatably arranged on the second slider (65). The connecting piece (651) is connected to the output end of the driving assembly (66). The driving assembly (66) is used to control the longitudinal reciprocating movement of the connecting piece (651). A transmission rod (641) is fixedly arranged on the first slider (64). A clamping seat (642) is arranged on the exposed part of the connecting rod (411) protruding out of the machine body (1) and is slidably connected to the transmission rod (641).

6. The air source total heat recovery heat pump unit according to claim 5, characterized in that, The driving assembly (66) includes a support frame (661) fixedly arranged on the outer wall of the machine body (1), and a first gear (662) and a second gear (663) arranged at the upper and lower ends of the support frame (661). The first gear (662) and the second gear (663) are both rotatably connected to the support frame (661). The first gear (662) and the second gear (663) are connected by chain drive. The connecting piece (651) is connected to the chain through a fastener. A linkage rod (664) is rotatably arranged on the support frame (661). A first bevel gear (665) is arranged at the bottom end of the linkage rod (664). A second bevel gear (666) is arranged at the axle of the first gear (662). The first bevel gear (665) and the second bevel gear (666) are meshed with each other. The clutch control mechanism (7) is arranged on the support frame (661). The clutch control mechanism (7) is used for the transmission connection and disconnection between the linkage rod (664) and the output shaft of the servo motor (51).

7. An air source total heat recovery heat pump unit according to claim 6, characterized in that The clutch control mechanism (7) includes a sliding support (71) and a fixed support (72). The sliding support (71) is arranged at the top end of the linkage rod (664) and is slidably connected to it through keyway fit. Friction plates (73) are arranged on the surfaces of the fixed support (72) and the sliding support (71). The clutch control mechanism (7) further includes a connecting frame (74) and a double-acting cylinder (75). The double-acting cylinder (75) is fixedly installed on the support frame (661). One end of the connecting frame (74) is rotatably connected to the sliding support (71). The other end of the connecting frame (74) is connected to the output end of the double-acting cylinder (75).

8. The air source total heat recovery heat pump unit according to claim 3, characterized in that, The dust suction device (8) includes a box body (83) and a suction fan (82) arranged outside the machine body (1). The box body (83) has an air inlet and an air outlet. An inner frame body (84) is inserted and installed inside the box body (83). A filter element is installed on the inner frame body (84), and the filter element covers the air outlet of the box body (83). The exhaust fan (82) is installed on the box body (83), and the air outlet pipe of the exhaust fan (82) is connected to the air inlet of the box body (83). The air inlet pipe of the exhaust fan (82) is connected to the outer end of the pipe body of the connecting rod (411) through a hose (81).

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