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] This invention relates to range hoods, and more particularly to a refrigerated range hood. Background Technology

[0002] Existing technologies disclose various refrigerated range hoods that add an air conditioning component to a range hood platform, achieving both the functions of a range hood and an air conditioner. The air conditioning component includes a compressor, an indoor unit module, and a cooling module. The indoor unit module includes an evaporator and an indoor fan, while the outdoor unit module includes a condenser and a cooling fan. Existing refrigerated range hoods use traditional electric-driven compressors. On one hand, the compressor has a large motor, and since the compressor is integrated into the range hood, this results in a large overall size. On the other hand, existing electrically driven compressors pose electrical safety risks such as leakage and can generate sparks, potentially burning out the compressor in extreme cases, especially when using flammable refrigerants like R290 and R32. Furthermore, the indoor fan and cooling fan are each driven by their own independent motors, increasing the overall size of the fan assembly and limiting the design of the fan system. Furthermore, belt-driven air conditioners are currently mainly used in gasoline-powered vehicles. The engine drives the crankshaft, which in turn outputs kinetic energy via a belt to power the compressor and refrigerant. However, due to limitations in transmission efficiency and motor torque, belt drives are not currently seen in residential air conditioners. In conclusion, further improvements are needed to existing refrigeration-type range hoods. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a refrigerated range hood that can reduce the number of fan motors and the design of electrical components, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a refrigerated range hood, comprising a casing, wherein a range hood fan, a compressor, a heat dissipation module, and an indoor unit module are installed inside the casing. The heat dissipation module includes a condenser and a heat dissipation fan, and the indoor unit module includes an evaporator and an indoor unit fan. The compressor, condenser, and evaporator are connected through a refrigerant pipeline. The range hood fan has a motor shaft, which 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 via a first transmission mechanism. The second output section is connected to the heat dissipation fan via a second transmission mechanism. The third output section is connected to the indoor unit fan via a third transmission mechanism. The first, second, and third output sections are speed-regulating sections, thereby adjusting the speed of the compressor, the heat dissipation fan, and the indoor unit fan.

[0005] Preferably, the first, second, and third output sections are all frustum-shaped. 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 driven between the first output section and the compressor's drive shaft, the second transmission belt is driven between the second output section and the cooling fan's drive shaft, and the third transmission belt is driven between the third output section and the indoor unit fan's drive shaft. The compressor's speed is adjusted by the axial movement of the first transmission belt on the first output section, the cooling fan's speed is adjusted by the axial movement of the second transmission belt on the second output section, and the indoor unit fan's speed is adjusted by the axial movement of the third transmission belt on the third output section. This configuration allows for adjustment of the belt's linear velocity through axial movement, thereby controlling the speeds of the compressor, cooling fan, and indoor unit fan, achieving precise adjustment and control. Furthermore, belt-driven transmissions reduce the design of electrical components and the number of fan motors. The use of purely mechanical control improves product lifespan, maintenance economy, and maintainability.

[0006] In a further preferred embodiment, the first, second, and third transmission belts are all clamped between corresponding slider limiters. Each slider limiter has a corresponding permanent magnet at its bottom, and below each permanent magnet is a row of electromagnetic coils. By controlling the energization of one of the electromagnetic coils, it attracts the permanent magnet, thereby driving the slider limiter and the corresponding transmission belt to move axially along the motor shaft. This configuration allows for precise control of one coil via an electrical signal to attract the permanent magnet, thus achieving precise movement of the slider limiter.

[0007] More preferably, the electromagnetic coil is mounted on a coil base.

[0008] To prevent speed controller failure, the electromagnetic coils are energized sequentially along the coil arrangement direction. This minimizes the range of positional changes in the energized electromagnetic coils, preventing the slider limiter from failing to move in time.

[0009] Further preferably, the first output segment, the input segment, the second output segment, and the third output segment are distributed sequentially along the axial direction of the motor shaft.

[0010] Further optimization involves decreasing the outer diameters of the first output segment, the input segment, the second output segment, and the third output segment in sequence.

[0011] Further preferably, the compressor is a belt-driven compressor. Utilizing the range hood's motor to drive the compressor reduces the safety risks associated with traditional electrically driven compressors. Under the same conditions, the compressor's size can be reduced by eliminating the need for a separate motor.

[0012] Further preferably, the compressor is a swashplate compressor. With this configuration, the range hood motor drives the compressor belt to rotate. When the electromagnetic clutch engages, the compressor begins to operate. The swashplate is fixed to the compressor's main shaft, ensuring that the swashplate rotates along with the main shaft. The edge of the swashplate is fitted into a groove in the middle of the piston, and the piston groove and the edge of the swashplate are supported by ball bearings. This design allows the swashplate to push the piston in a linear reciprocating motion when rotating. When the compressor's main shaft rotates, the swashplate also rotates. Because the swashplate is at an angle to the horizontal plane, this rotational motion is converted into the axial reciprocating motion of the piston. During the piston's reciprocating motion, it performs the processes of intake, compression, and exhaust within the compressor cylinder, thus completing the gas compression process.

[0013] In order to blow cold air out of the casing, an air outlet module is installed on the casing, and the air outlet of the indoor unit fan is fluidly connected to the air inlet of the air outlet module.

[0014] Compared with existing technologies, the advantages of this invention are as follows: the motor shaft of the range hood's exhaust fan is axially distributed with an input section, a first output section, a second output section, and a third output section. The first, second, and third output sections are speed-regulating sections. That is, by modifying the motor shaft of the exhaust fan, precise control of the speeds of the controlled units—namely, the compressor, the cooling fan, and the indoor unit fan—can be achieved, thereby improving the working efficiency of the range hood. Utilizing the exhaust fan's motor to drive the compressor reduces the safety risks of traditional electrically driven compressors. Under the same conditions, eliminating the compressor's motor reduces the compressor's size. Similarly, it simplifies the motors of the cooling fan and the indoor unit fan, reducing the overall size of the fan assembly and minimizing design limitations of the fan system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a refrigerated range hood according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the motor speed controller and transmission mechanism according to an embodiment of the present invention;

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

[0018] Figure 4 This is a schematic diagram of the structure of a permanent magnet and an energized electromagnetic coil in an embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the refrigerated range hood of this embodiment includes a casing 1. Inside the casing 1 are installed a range hood fan 2, a compressor 3, a heat dissipation module, and an indoor unit module. 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) is installed on the casing 1, and the air outlet of the indoor unit fan 7 is fluidly connected to the air inlet of the air outlet module. The compressor 3, condenser 4, and evaporator 6 are connected via refrigerant pipes 8. The compressor 3, condenser 4, and evaporator 6 constitute an air conditioning assembly, and its working principle is the same as that of existing air conditioners, and will not be described further here.

[0021] The range hood 2 has a motor shaft 21, along which an input section 210, a first output section 211, a second output section 212, and a third output section 213 are distributed axially. The first output section 211, input section 210, second output section 212, and 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, input section 210, second output section 212, and third output section 213 decrease sequentially, and each of the first output section 211, second output section 212, and third output section 213 has a frustum-shaped structure, meaning that the first output section 211, second output section 212, and third output section 213 are speed-regulating sections.

[0022] The range hood 2 is installed on the input section 210. The first output section 211 is connected to the compressor 3 through the first transmission mechanism. The second output section 212 is connected to the cooling fan 5 through the second transmission mechanism. The third output section 213 is connected to the indoor unit fan 7 through the 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, and the third transmission mechanism includes a third transmission belt 93. The first transmission belt 91 is driven between the first output section 211 and the drive shaft of the compressor 3, the second transmission belt 92 is driven between the second output section 212 and the drive shaft of the cooling fan 5, and the third transmission belt 93 is driven between the third output section 213 and the drive shaft of the indoor unit fan 7. The axial movement of the first transmission belt 91 on the first output section 211 adjusts the speed of the compressor 3, the axial movement of the second transmission belt 92 on the second output section 212 adjusts the speed of the cooling fan 5, and the axial movement of the third transmission belt 93 on the third output section 213 adjusts the speed of the indoor unit fan 7.

[0024] In this embodiment, the first transmission belt 91, the second transmission belt 92, and the third transmission belt 93 are all clamped between corresponding slider limiters 94, and the transmission belts move synchronously by moving the slider limiters 94. Each slider limiter 94 has a corresponding permanent magnet 95 at its bottom, and each permanent magnet 95 has a row of electromagnetic coils 96 below it, which are mounted on the coil base 10.

[0025] The sliding attraction mechanism of the permanent magnet 95: A permanent magnet S pole is located at the bottom of the slider limiter 94. When one of the electromagnetic coils 96 in the lower row of coils is energized via precise electrical signal control, the current direction is counterclockwise when viewed from top to bottom, and the magnetic field direction is upward. Therefore, the upper part of the electromagnetic coil 96 is the N pole. According to the principle of like poles repelling and unlike poles attracting, the N pole and the S pole attract each other, achieving a single attraction. This enables the slider limiter 94 to move precisely, thereby driving the corresponding transmission belt to move axially along the motor shaft 21, adjusting the belt's linear speed, and ultimately achieving precise adjustment of the compressor 3 speed, the cooling fan 5 speed, and the indoor unit fan 7 speed, ensuring that the refrigeration range hood maintains good working efficiency under different operating conditions. It is worth noting that the electromagnetic coils 96 are energized sequentially along the coil arrangement direction. If the position change of the energized electromagnetic coils 96 is too large, the slider limiter 94 may not be able to move in time, causing the speed regulator to malfunction.

[0026] The compressor in this embodiment is a belt-driven compressor, specifically a swashplate compressor, with a structure identical to existing swashplate compressors. Its specific operation is as follows: the motor shaft of the range hood 2 drives the first transmission belt 91 to rotate. When the electromagnetic clutch engages, the compressor begins to operate. The swashplate is fixed to the compressor's main shaft, ensuring that the swashplate rotates along with the main shaft. The edge of the swashplate is fitted into a groove in the center of the piston, and the piston groove and the edge of the swashplate are supported by ball bearings. This design allows the swashplate to push the piston in a linear reciprocating motion when rotating. When the compressor's main shaft rotates, the swashplate also rotates. Because the swashplate forms an angle with the horizontal plane, this rotational motion is converted into the axial reciprocating motion of the piston. During the piston's reciprocating motion, it performs the processes of intake, compression, and exhaust within the compressor cylinder, thus completing the gas compression process.

Claims

1. A refrigerated range hood, comprising a casing (1), wherein a range hood fan (2), a compressor (3), a heat dissipation module, and an indoor unit module are installed inside the casing (1), the heat dissipation module comprising a condenser (4) and a heat dissipation fan (5), the indoor unit module comprising an evaporator (6) and an indoor unit fan (7), wherein the compressor (3), the condenser (4), and the evaporator (6) are connected via a refrigerant pipeline (8), characterized in that: The fume extractor (2) has a motor shaft (21), which has an input section (210), a first output section (211), a second output section (212), and a third output section (213) distributed along the axial direction. The fume extractor (2) is installed on the input section (210). The first output section (211) is connected to the compressor (3) through a first transmission mechanism. The second output section (212) is connected to the cooling fan (5) through a second transmission mechanism. The third output section (213) is 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 speed of the compressor (3), the cooling fan (5), and the indoor unit fan (7).

2. The refrigerated range hood according to claim 1, characterized in that: The first output section (211), the second output section (212), and the third output section (213) are all frustum-shaped. The first transmission mechanism includes a first transmission belt (91), the second transmission mechanism includes a second transmission belt (92), and the third transmission mechanism includes a third transmission belt (93). The first transmission belt (91) is driven between the first output section (211) and the transmission shaft of the compressor (3), and the second transmission belt (92) is driven between the second output section (212) and the cooling fan. Between the drive shafts of the compressor (5), the third drive belt (93) is connected between the drive shaft of the third output section (213) and the drive shaft of the indoor fan (7). The speed of the compressor (3) is adjusted by the axial movement of the first drive belt (91) on the first output section (211), the speed of the cooling fan (5) is adjusted by the axial movement of the second drive belt (92) on the second output section (212), and the speed of the indoor fan (7) is adjusted by the axial movement of the third drive belt (93) on the third output section (213).

3. The refrigerated range hood according to claim 2, characterized in that: The first transmission belt (91), the second transmission belt (92) and the third transmission belt (93) are all clamped between the corresponding slider limiters (94). Each slider limiter (94) has a corresponding permanent magnet (95) at its bottom. Each permanent magnet (95) has a row of electromagnetic coils (96) below it. By controlling a certain electromagnetic coil (96) to be energized, it attracts the permanent magnet (95), thereby driving the slider limiter (94) and the corresponding transmission belt to move along the axial direction of the motor shaft (21).

4. The refrigerated range hood according to claim 3, characterized in that: The electromagnetic coil (96) is mounted on the coil base (10).

5. The refrigerated range hood according to claim 3, characterized in that: The electromagnetic coil (96) is energized sequentially along the coil arrangement direction.

6. The refrigerated range hood according to claim 2, characterized in that: The first output segment (211), the input segment (210), the second output segment (212) and the third output segment (213) are distributed sequentially along the axial direction of the motor shaft (21).

7. The refrigerated range hood according to claim 6, characterized in that: The outer diameters of the first output segment (211), the input segment (210), the second output segment (212), and the third output segment (213) decrease sequentially.

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

9. The refrigerated range hood according to claim 8, characterized in that: The compressor (3) is a swashplate compressor.

10. The refrigerated range hood according to any one of claims 1 to 9, characterized in that: An air outlet module is installed on the casing (1), and the air outlet of the indoor fan (7) is in fluid communication with the air inlet of the air outlet module.

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