Refrigeration type range hood

Abstract

A refrigeration type extractor hood is characterized in that an oil smoke suction fan, a compressor, a heat dissipation module and an inner machine module are installed in a machine shell, an input section, a first output section, a second output section and a third output section are distributed on a motor shaft of the oil smoke suction fan in the axial direction, the oil smoke suction fan is installed on the input section, and the first output section is in transmission connection with the compressor through a first transmission mechanism; the second output section is in transmission connection with the cooling fan through a second transmission mechanism, the third output section is in transmission connection with the indoor unit fan through a third transmission mechanism, and the first output section, the second output section and the third output section are speed adjusting sections so as to adjust the rotating speed of the compressor, the cooling fan and the indoor unit fan. The input section, the first output section, the second output section and the third output section are distributed on the motor shaft of the oil smoke suction fan of the refrigeration type range hood in the axial direction, precise control over the rotating speed of the controlled units, namely the compressor, the cooling fan and the indoor unit fan is achieved, and then the working energy efficiency of the refrigeration type range hood is improved.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to a refrigeration type range hood. Background Art

[0002] Various refrigeration-type range hoods are disclosed in the prior art. An air conditioning component is added to the range hood platform, which can realize all the functions of the range hood and the function of the air conditioner. The air conditioning component includes a compressor, an internal unit module and a heat dissipation module, wherein the internal unit module includes an evaporator and an internal unit fan, and the external unit module includes a condenser and a heat dissipation fan. The compressor of the existing refrigeration-type range hood adopts a traditional electric drive method. On the one hand, since the compressor has a compressor motor, the compressor motor is relatively large, and the compressor of the refrigeration-type range hood is integrated on the range hood, the volume of the refrigeration-type range hood is relatively large. On the other hand, the existing electric drive compressor has electrical safety problems such as leakage, which will generate electric sparks and burn the compressor in extreme cases, for example, when some flammable refrigerants are used, such as R290, R32, etc. In addition, the internal unit fan and the heat dissipation fan are also driven by their own independent motors, thereby increasing the volume of the fan assembly and limiting the design of the fan system. In addition, belt-type air conditioner products are currently mainly used in fuel-powered automobile air conditioners, where the engine drives the crankshaft to rotate, and the belt outputs kinetic energy to drive the compressor to work on the refrigerant. However, due to the limitations of transmission efficiency and motor torque, belt drive has not yet been seen in the field of household air conditioners. In summary, the existing refrigeration-type range hoods need to be further improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a refrigeration type range hood capable of reducing the number of fan motors and the design of electrical components in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a refrigeration type range hood, comprising a casing, in which a range hood fan, a compressor, a heat dissipation module and an indoor module are installed, the heat dissipation module comprises a condenser and a heat dissipation fan, the indoor module comprises an evaporator and an indoor fan, the compressor, condenser and evaporator are connected through a refrigerant pipeline, and is characterized in that: the range hood fan has a motor shaft, and the motor shaft is axially distributed with an input section, a first output section, a second output section and a third output section, the range hood fan is installed on the input section, the first output section is connected to the compressor through a first transmission mechanism, the second output section is connected to the heat dissipation fan through a second transmission mechanism, the third output section is connected to the indoor fan through a third transmission mechanism, and the first output section, the second output section and the third output section are speed regulating sections, thereby adjusting the rotation speeds of the compressor, the heat dissipation fan and the indoor fan.

[0005] Preferably, the first output section, the second output section, and the third output section are all frustum-shaped structures. The first transmission mechanism includes a first transmission belt, the second transmission mechanism includes a second transmission belt, and the third transmission mechanism includes a third transmission belt. The first transmission belt is drivingly connected between the first output section and the transmission shaft of the compressor, the second transmission belt is drivingly connected between the second output section and the transmission shaft of the heat dissipation fan, and the third transmission belt is drivingly connected between the third output section and the transmission shaft of the indoor unit fan. By axially moving the first transmission belt on the first output section, the rotational speed of the compressor is adjusted. By axially moving the second transmission belt on the second output section, the rotational speed of the heat dissipation fan is adjusted. By axially moving the third transmission belt on the third output section, the rotational speed of the indoor unit fan is adjusted. With such a setting, by axially moving the corresponding transmission belt, the linear velocity of the belt can be adjusted, thereby controlling the rotational speeds of the compressor, the heat dissipation fan, and the indoor unit fan to achieve precise adjustment control. In addition, the belt-driven transmission can reduce the design of electrical components and reduce the number of fan motors. Adopting pure mechanical control can improve the service life of the product and enhance the maintenance economy and maintainability of the product.

[0006] Further preferably, the first transmission belt, the second transmission belt, and the third transmission belt are all clamped between the corresponding slider limiters. A corresponding permanent magnet is provided at the bottom of each slider limiter, and a row of electromagnetic coils is provided below each permanent magnet. By controlling a certain electromagnetic coil to be energized to attract the permanent magnet, the slider limiter and the corresponding transmission belt are driven to axially move along the motor shaft. With such a setting, by precisely controlling one of the coils to be energized through an electrical signal to attract the permanent magnet, the precise movement of the slider limiter can be achieved.

[0007] Further preferably, the electromagnetic coils are installed on the coil base.

[0008] In order to avoid the failure of the speed regulator, the electromagnetic coils are energized in sequence along the coil arrangement direction. In this way, the position change span of the energized electromagnetic coils is relatively small, and the problem that the slider limiter cannot move over in time will not occur.

[0009] Further preferably, the first output section, the input section, the second output section, and the third output section are axially distributed in sequence along the motor shaft.

[0010] Further preferably, the outer diameters of the first output section, the input section, the second output section, and the third output section decrease in sequence.

[0011] Further preferably, the compressor is a belt-driven compressor. Using the motor of the range hood to drive the compressor to do work reduces the safety risk of the traditional electric drive compressor. Under the same conditions, since the motor of the compressor is cancelled, the volume of the compressor can be reduced.

[0012] Further preferably, the compressor is a swash plate compressor. With this arrangement, the motor of the range hood drives the compressor belt to rotate. When the electromagnetic clutch engages, the compressor starts to work. The swash plate is fixed to the main shaft of the compressor to ensure that the swash plate can rotate with the rotation of the main shaft. The edge of the swash plate is fitted into the groove in the middle of the piston, and the piston groove and the edge of the swash plate are supported together by a ball bearing. This design enables the swash plate to push the piston to perform a linear reciprocating motion when it rotates. When the main shaft of the compressor rotates, the swash plate also rotates. Since the swash plate is at a certain angle to the horizontal plane, this rotational motion is converted into an axial reciprocating motion of the piston. During the reciprocating motion of the piston, it will perform the processes of suction, compression, and exhaust in the cylinder of the compressor, thereby completing the compression work of the gas.

[0013] To blow cold air from the casing, an air outlet module is installed on the casing, and the air outlet of the indoor fan is in fluid communication with the air inlet of the air outlet module.

[0014] Compared with the prior art, the advantages of the present utility model are as follows: The motor shaft of the oil fume suction fan of the refrigerating range hood is axially distributed with an input section, a first output section, a second output section, and a third output section. The first output section, the second output section, and the third output section are speed regulation sections. That is, by transforming the motor shaft of the oil fume suction fan, precise control of the rotational speeds of the controlled units, namely the compressor, the cooling fan, and the indoor fan, can be achieved, thereby improving the working energy efficiency of the refrigerating range hood. Using the motor of the oil fume suction fan to drive the compressor to do work reduces the safety risk of the traditional electric drive compressor. Under the same conditions, since the motor of the compressor is cancelled, the volume of the compressor can be reduced; similarly, the motors of the cooling fan and the indoor fan are also simplified, and the volume of the fan assembly is reduced, reducing the design limitations of the fan system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the refrigerating range hood according to an embodiment of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the motor speed regulator and the transmission mechanism according to an embodiment of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the permanent magnet and the electromagnetic coil according to an embodiment of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the cooperation between the permanent magnet and the energized electromagnetic coil according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0020] As shown Figures 1 to 4 in the figure, the refrigerating range hood of this embodiment includes a housing 1. An oil suction and exhaust fan 2, a compressor 3, a heat dissipation module and an indoor unit module are installed in the housing 1. The heat dissipation module includes a condenser 4 and a heat dissipation fan 5. The indoor unit module includes an evaporator 6 and an indoor unit fan 7. An air outlet module (not shown in the figure) is installed on the housing 1. The air outlet of the indoor unit fan 7 is in fluid communication with the air inlet of the air outlet module. The compressor 3, the condenser 4 and the evaporator 6 are connected through a refrigerant pipeline 8. The compressor 3, the condenser 4 and the evaporator 6 form an air conditioning assembly, and its working principle is the same as that of the existing air conditioner, and will not be described in detail here.

[0021] The oil suction and exhaust fan 2 has a motor shaft 21. An input section 210, a first output section 211, a second output section 212 and a third output section 213 are axially distributed along the motor shaft 21. The first output section 211, the input section 210, the second output section 212 and the third output section 213 are sequentially distributed along the axial direction of the motor shaft 21. The outer diameters of the first output section 211, the input section 210, the second output section 212 and the third output section 213 decrease in sequence, and moreover, the first output section 211, the second output section 212 and the third output section 213 are all in a frustum shape, that is, the first output section 211, the second output section 212 and the third output section 213 are speed regulation sections.

[0022] The oil suction and exhaust fan 2 is installed on the input section 210. The first output section 211 is in transmission connection with the compressor 3 through a first transmission mechanism. The second output section 212 is in transmission connection with the heat dissipation fan 5 through a second transmission mechanism. The third output section 213 is in transmission connection with the indoor unit fan 7 through a third transmission mechanism.

[0023] The first transmission mechanism of this embodiment includes a first transmission belt 91. The second transmission mechanism includes a second transmission belt 92. The third transmission mechanism includes a third transmission belt 93. The first transmission belt 91 is in transmission connection between the first output section 211 and the transmission shaft of the compressor 3. The second transmission belt 92 is in transmission connection between the second output section 212 and the transmission shaft of the heat dissipation fan 5. The third transmission belt 93 is in transmission connection between the third output section 213 and the transmission shaft of the indoor unit fan 7. The rotation speed of the compressor 3 is adjusted by the axial movement of the first transmission belt 91 on the first output section 211. The rotation speed of the heat dissipation fan 5 is adjusted by the axial movement of the second transmission belt 92 on the second output section 212. The rotation speed of the indoor unit fan 7 is adjusted by the axial movement of the third transmission belt 93 on the third output section 213.

[0024] In this embodiment, the first drive belt 91, the second drive belt 92, and the third drive belt 93 are all clamped between the corresponding slider limiters 94, and the drive belts are driven to move synchronously by the movement of the slider limiters 94. A corresponding permanent magnet 95 is provided at the bottom of each slider limiter 94, and a row of electromagnetic coils 96 is provided below each permanent magnet 95. The electromagnetic coils 96 are installed on the coil base 10.

[0025] Permanent magnet 95 sliding attraction mechanism: A permanent magnet S pole is provided at the bottom of the slider limiter 94. When a signal precisely controls one of the electromagnetic coils 96 in the row of coils below to be energized, the current direction is counterclockwise when viewed from above, and the magnetic field direction is upward. Therefore, the upper part of the electromagnetic coil 96 is the N pole. According to the principle that like poles repel and opposite poles attract, the N pole attracts the S pole, realizing one-time attraction, thereby achieving the precise movement of the slider limiter 94. Furthermore, it drives the corresponding drive belt to move axially along the motor shaft 21, adjusts the linear speed of the belt, and finally realizes the precise adjustment of the rotational speed of the compressor 3, the rotational speed of the cooling fan 5, and the rotational speed of the indoor fan 7, enabling the refrigerating range hood to maintain good working energy efficiency under different working conditions. It should be noted that the electromagnetic coils 96 are energized in sequence along the coil arrangement direction because if the position change of the energized electromagnetic coil 96 is too large, the slider limiter 94 cannot move over in time, causing the speed regulator to fail.

[0026] The compressor in this embodiment is a belt-driven compressor and is a swashplate compressor. The structure of the swashplate compressor is the same as that of the existing swashplate compressor. Its specific working process is as follows: The motor shaft of the oil suction and exhaust fan 2 drives the first drive belt 91 to rotate. When the electromagnetic clutch is engaged, the compressor starts to work. The swashplate is fixed to the main shaft of the compressor to ensure that the swashplate can rotate with the rotation of the main shaft. The edge of the swashplate is fitted into the groove in the middle of the piston, and the piston groove and the edge of the swashplate are supported together by a ball bearing. Such a design enables the swashplate to push the piston to perform a linear reciprocating motion when rotating. When the main shaft of the compressor rotates, the swashplate also rotates accordingly. Since the swashplate forms a certain angle with the horizontal plane, this rotational motion is converted into the axial reciprocating motion of the piston. During the reciprocating motion of the piston, it will perform the processes of suction, compression, and exhaust in the cylinder of the compressor, thereby completing the compression work on the gas.

Claims

1. A refrigerated range hood, comprising a housing (1), wherein an oil suction and exhaust fan (2), a compressor (3), a heat dissipation module and an internal unit module are installed in the housing (1), the heat dissipation module includes a condenser (4) and a heat dissipation fan (5), the internal unit module includes an evaporator (6) and an internal unit fan (7), the compressor (3), the condenser (4) and the evaporator (6) are connected and communicated through a refrigerant pipeline (8), and is characterized in that: The oil fume extraction fan (2) has a motor shaft (21). The motor shaft (21) is axially distributed with an input section (210), a first output section (211), a second output section (212) and a third output section (213). The oil fume extraction fan (2) is installed on the input section (210). The first output section (211) is drivingly connected to the compressor (3) through a first transmission mechanism. The second output section (212) is drivingly connected to the heat dissipation fan (5) through a second transmission mechanism. The third output section (213) is drivingly connected to the indoor unit fan (7) through a third transmission mechanism. The first output section (211), the second output section (212) and the third output section (213) are speed regulation sections, thereby adjusting the rotation speeds of the compressor (3), the heat dissipation fan (5) and the indoor unit fan (7).

2. The refrigerated range hood according to claim 1, wherein: The first output section (211), the second output section (212) and the third output section (213) are all in the shape of a frustum of a cone. The first transmission mechanism includes a first transmission belt (91). The second transmission mechanism includes a second transmission belt (92). The third transmission mechanism includes a third transmission belt (93). The first transmission belt (91) is drivingly connected between the first output section (211) and the transmission shaft of the compressor (3). The second transmission belt (92) is drivingly connected between the second output section (212) and the transmission shaft of the heat dissipation fan (5). The third transmission belt (93) is drivingly connected between the third output section (213) and the transmission shaft of the indoor unit fan (7). The rotation speed of the compressor (3) is adjusted by the axial movement of the first transmission belt (91) on the first output section (211). The rotation speed of the heat dissipation fan (5) is adjusted by the axial movement of the second transmission belt (92) on the second output section (212). The rotation speed of the indoor unit fan (7) is adjusted by the axial movement of the third transmission belt (93) on the third output section (213).

3. The refrigerated range hood according to claim 2, wherein: The first transmission belt (91), the second transmission belt (92) and the third transmission belt (93) are all clamped between corresponding slider limiters (94). A corresponding permanent magnet (95) is provided at the bottom of each slider limiter (94). A row of electromagnetic coils (96) is provided below each permanent magnet (95). By controlling a certain electromagnetic coil (96) to be energized to attract the permanent magnet (95), the slider limiter (94) and the corresponding transmission belt are driven to move axially along the motor shaft (21).

4. The refrigerated range hood according to claim 3, wherein: The electromagnetic coil (96) is installed on a coil base (10).

5. The refrigerated range hood according to claim 3, wherein: The electromagnetic coils (96) are energized in sequence along the coil arrangement direction.

6. The refrigerating range hood according to claim 2, wherein: The first output section (211), the input section (210), the second output section (212) and the third output section (213) are axially distributed in sequence along the motor shaft (21).

7. The refrigerating range hood according to claim 6, wherein: The outer diameters of the first output section (211), the input section (210), the second output section (212) and the third output section (213) decrease in sequence.

8. The refrigerated range hood according to claim 2, wherein: The compressor (3) is a belt-driven compressor.

9. The refrigerating range hood according to claim 8, wherein: The compressor (3) is a swash plate compressor.

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