Energy-saving variable frequency motor device for drum washing machine

Abstract

The utility model discloses a kind of energy-saving variable-frequency motor devices for drum washing machine, belong to motor technical field, including variable-frequency motor body, rotatingly connected with main shaft in the variable-frequency motor body, main shaft one end is fixed with fan blade, variable-frequency motor body outside is provided with shroud, shroud one end and the position of fan blade corresponding opening has air inlet, the utility model is through setting air guide component, main shaft rotates when variable-frequency motor body operates, main shaft rotation drives the rotation of another end fan blade, fan blade rotation blows wind to shroud through air inlet, heat column exports variable-frequency motor body heat, since the taper cover inner wall is gradually narrowed from right to left, airflow velocity is accelerated, improve the air-cooled effect to variable-frequency motor body, exhaust air through the air outlet between drainage inclined cover one and drainage inclined cover two, drainage inclined cover one and drainage inclined cover two avoid hot air backflow to taper cover, setting air guide component improves the heat dissipation cooling effect of fan blade rotation blowing to variable-frequency motor body.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to an energy-saving variable frequency motor device for drum washing machines. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It utilizes a energized coil to generate a rotating magnetic field, which acts on the rotor to create magnetoelectric torque.

[0003] Existing energy-saving inverter motor devices for drum washing machines typically use the motor spindle to drive fan blades to dissipate heat and cool the inverter motor. However, the fan blades' rotation and blowing air have a poor cooling effect on the inverter motor body, and the fan blades' rotation and blowing air can easily blow dust and other impurities into the space between the protective cover and the inverter motor body. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an energy-saving variable frequency motor device for drum washing machines, which features good heat dissipation and cooling effect of the fan blades on the variable frequency motor body, and prevents dust and other impurities from easily entering between the protective cover and the variable frequency motor body.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving variable frequency motor device for a drum washing machine, comprising a variable frequency motor body, a main shaft rotatably connected to the variable frequency motor body, a fan blade fixed at one end of the main shaft, a protective cover provided on the outside of the variable frequency motor body, an air inlet provided at one end of the protective cover corresponding to the fan blade, a dustproof component provided in the air inlet, and an air guide component provided between the protective cover and the variable frequency motor body; The air guiding assembly includes heat-conducting columns. Several heat-conducting columns are fixed between the protective cover and the variable frequency motor body. A conical cover is fixed inside the protective cover. An annular plate is fixed between one end of the conical cover and the protective cover. A first air-guiding oblique cover is fixed inside the protective cover at the end away from the air inlet. A second air-guiding oblique cover is fixed outside the variable frequency motor body at the end away from the fan blade. An exhaust port is provided between the second air-guiding oblique cover and the first air-guiding oblique cover.

[0006] Preferably, the conical cover gradually narrows from right to left, and there is a gap between one end of the conical cover and the variable frequency motor body.

[0007] Preferably, the heat-conducting columns are fixed to the variable frequency motor body and to the protective cover by welding, and adjacent heat-conducting columns are equidistantly distributed.

[0008] Preferably, the dustproof component includes a dustproof plate, a dustproof plate is installed in the air inlet, a clamping plate is fixed at both ends of the dustproof plate, and a clamping groove corresponding to the clamping plate is opened on both sides of one end of the cover. The clamping plate and the cover are connected by fixing bolts, and a fixing hole corresponding to the fixing bolt is opened in the clamping groove.

[0009] Preferably, a pull ring is fixed to one end of the card plate, and a through hole corresponding to the fixing bolt is opened in the card plate. After the dustproof plate is installed into the air inlet, the side of the dustproof plate is tightly attached to the inner wall of the air inlet.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up an air guide component, allows the main shaft of the variable frequency motor to rotate when the motor body is running. The rotation of the main shaft drives the fan blades at the other end to rotate. The fan blades blow air into the shroud through the air inlet, while the heat-conducting column dissipates the heat from the variable frequency motor body. Since the inner wall of the conical shroud gradually narrows from right to left, the airflow speed is accelerated, improving the air cooling effect on the variable frequency motor body. Furthermore, the air is discharged through the exhaust port between the first and second inclined air guide shrouds. The first and second inclined air guide shrouds prevent hot air from flowing back into the conical shroud. The air guide component improves the heat dissipation and cooling effect of the fan blades blowing air onto the variable frequency motor body.

[0011] 2. This utility model sets up a dustproof component, which installs the dustproof plate into the air inlet at one end of the protective cover. The clamping plates at both ends of the dustproof plate enter the clamping grooves. Then, the fixing bolts are inserted into the clamping plates and screwed into the fixing holes to achieve the effect of limiting and fixing the clamping plates and the dustproof plate. The dustproof plate plays a dustproof role, preventing the fan blades from blowing dust and other impurities into the protective cover. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a rear-view perspective view of the present invention; Figure 3 This is a cross-sectional perspective view of the present invention; Figure 4 This is a perspective view of the dustproof panel of this utility model during installation; In the diagram: 1. Variable frequency motor body; 2. Air guide assembly; 21. Air guide shroud one; 22. Air guide shroud two; 23. Exhaust outlet; 24. Conical shroud; 25. Heat conduction column; 26. Annular plate; 3. Protective cover; 4. Main shaft; 5. Air inlet; 6. Dustproof assembly; 61. Dustproof plate; 62. Clamping plate; 63. Clamping groove; 64. Fixing bolt; 65. Fixing hole; 66. Pull ring; 7. Fan blade. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0014] Please see Figure 1-4 The present invention provides the following technical solution: an energy-saving variable frequency motor device for a drum washing machine, comprising a variable frequency motor body 1, a main shaft 4 rotatably connected in the variable frequency motor body 1, a fan blade 7 fixed at one end of the main shaft 4, a protective cover 3 provided on the outside of the variable frequency motor body 1, an air inlet 5 opened at one end of the protective cover 3 corresponding to the fan blade 7, a dustproof component 6 provided in the air inlet 5, and an air guide component 2 provided between the protective cover 3 and the variable frequency motor body 1; The air guide assembly 2 includes heat-conducting columns 25. Several heat-conducting columns 25 are fixed between the protective cover 3 and the variable frequency motor body 1. A conical cover 24 is fixed inside the protective cover 3. An annular plate 26 is fixed between one end of the conical cover 24 and the protective cover 3. A first air guide shroud 21 is fixed inside the protective cover 3 at the end away from the air inlet 5. A second air guide shroud 22 is fixed outside the variable frequency motor body 1 at the end away from the fan blade 7. An exhaust port 23 is provided between the second air guide shroud 22 and the first air guide shroud 21.

[0015] Specifically, the conical cover 24 gradually narrows from right to left, and there is a gap between one end of the conical cover 24 and the variable frequency motor body 1.

[0016] By adopting the above technical solution, the inner wall of the conical cover 24 gradually narrows from right to left, which accelerates the airflow speed and improves the air cooling effect on the variable frequency motor body 1.

[0017] Specifically, the heat-conducting pillar 25 is fixed to the variable frequency motor body 1 and to the protective cover 3 by welding, and adjacent heat-conducting pillars 25 are equidistantly distributed.

[0018] By adopting the above technical solution, welding and fixing make the heat-conducting column 25 more secure with the variable frequency motor body 1 and with the protective cover 3. The heat-conducting column 25 conducts heat out of the variable frequency motor body 1, improving the heat dissipation effect.

[0019] In this embodiment, when the energy-saving inverter motor device for the drum washing machine is used, the device is installed in a suitable position. When the inverter motor body 1 is running, the main shaft 4 rotates, and the rotation of the main shaft 4 drives the fan blade 7 at the other end to rotate. The fan blade 7 rotates and blows air into the protective cover 3 through the air inlet 5. At the same time, the heat conduction column 25 conducts heat out of the inverter motor body 1. Since the inner wall of the conical cover 24 gradually narrows from right to left, the airflow speed is accelerated, which improves the air cooling effect on the inverter motor body 1. The air is discharged through the exhaust port 23 between the first and second guide oblique covers 21 and 22. The first and second guide oblique covers 21 and 22 prevent hot air from flowing back into the conical cover 24. The setting of the annular plate 26 prevents air from entering between the conical cover 24 and the protective cover 3. The air guide component 2 is set to improve the heat dissipation and cooling effect of the fan blade 7 rotating and blowing air on the inverter motor body 1. Example

[0020] The difference between this embodiment and embodiment 1 is that the dustproof component 6 includes a dustproof plate 61, the dustproof plate 61 is installed in the air inlet 5, the dustproof plate 61 is fixed with a clamping plate 62 at both ends, the protective cover 3 has a clamping groove 63 on both sides of one end corresponding to the clamping plate 62, the clamping plate 62 and the protective cover 3 are connected by a fixing bolt 64, and the clamping groove 63 has a fixing hole 65 corresponding to the fixing bolt 64.

[0021] By adopting the above technical solution, the dustproof plate 61 is installed into the air inlet 5 at one end of the protective cover 3, and the clamping plates 62 at both ends of the dustproof plate 61 are inserted into the clamping grooves 63. Then, the fixing bolts 64 are inserted into the clamping plates 62 and screwed into the fixing holes 65 to achieve the effect of limiting and fixing the clamping plates 62 and the dustproof plate 61. The dustproof plate 61 plays a dustproof role, preventing the fan blades 7 from rotating and blowing dust and other impurities into the protective cover 3.

[0022] Specifically, a pull ring 66 is fixed to one end of the card plate 62, and a through hole corresponding to the fixing bolt 64 is opened in the card plate 62. After the dustproof plate 61 is installed into the air inlet 5, the side of the dustproof plate 61 is tightly attached to the inner wall of the air inlet 5.

[0023] By adopting the above technical solution, the pull ring 66 is set to facilitate pulling the card plate 62 out of the card slot 63, and the fixing bolt 64 can pass through the card plate 62 and be screwed into the fixing hole 65. After the dustproof plate 61 is installed in the air inlet 5, the side of the dustproof plate 61 fits more closely with the inner wall of the air inlet 5.

[0024] In this embodiment, the dustproof plate 61 is installed into the air inlet 5 at one end of the protective cover 3, and the retaining plates 62 at both ends of the dustproof plate 61 are inserted into the retaining grooves 63. Then, the fixing bolts 64 are inserted into the retaining plates 62 and screwed into the fixing holes 65 to achieve the effect of limiting and fixing the retaining plates 62 and the dustproof plate 61. The dustproof plate 61 plays a role in dust prevention, preventing the fan blades 7 from rotating and blowing dust and other impurities into the protective cover 3.

[0025] The structure and working principle of the variable frequency motor body 1, protective cover 3, main shaft 4, air inlet 5 and fan blade 7 in this utility model have been disclosed in the high-efficiency air-cooled variable frequency motor disclosed in Chinese Patent Publication No. CN202840831U.

[0026] The working principle and usage process of this utility model: When using the energy-saving variable frequency motor device for drum washing machines, the device is installed in a suitable position. When the variable frequency motor body 1 is running, the main shaft 4 rotates, and the rotation of the main shaft 4 drives the fan blade 7 at the other end to rotate. The fan blade 7 rotates and blows air into the protective cover 3 through the air inlet 5. At the same time, the heat conduction column 25 conducts heat out of the variable frequency motor body 1. Since the inner wall of the conical cover 24 gradually narrows from right to left, the airflow speed is accelerated, which improves the air cooling effect on the variable frequency motor body 1. The air is discharged through the exhaust port 23 between the first and second guide oblique covers 21 and 22. The first and second guide oblique covers 21 and 22 prevent hot air from flowing back into the conical cover 24. The setting of the annular plate 26 prevents air from entering between the conical cover 24 and the protective cover 3. The air guide component 2 is set to improve the heat dissipation and cooling effect of the fan blade 7 rotating and blowing air on the variable frequency motor body 1.

[0027] The dustproof plate 61 is installed into the air inlet 5 at one end of the protective cover 3. The clamping plates 62 at both ends of the dustproof plate 61 are inserted into the clamping grooves 63. Then, the fixing bolts 64 are inserted into the clamping plates 62 and screwed into the fixing holes 65 to achieve the effect of limiting and fixing the clamping plates 62 and the dustproof plate 61. The dustproof plate 61 plays a role in dust prevention, preventing the fan blades 7 from rotating and blowing dust and other impurities into the protective cover 3.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving variable frequency motor device for a drum washing machine, comprising a variable frequency motor body (1), characterized in that: The variable frequency motor body (1) is rotatably connected to a main shaft (4), and a fan blade (7) is fixed at one end of the main shaft (4). A protective cover (3) is provided on the outside of the variable frequency motor body (1). An air inlet (5) is opened at one end of the protective cover (3) at a position corresponding to the fan blade (7). A dustproof component (6) is provided in the air inlet (5). An air guide component (2) is provided between the protective cover (3) and the variable frequency motor body (1). The air guide assembly (2) includes heat-conducting columns (25). Several heat-conducting columns (25) are fixed between the shield (3) and the variable frequency motor body (1). A conical shield (24) is fixed inside the shield (3). An annular plate (26) is fixed between one end of the conical shield (24) and the shield (3). A first diversion oblique shield (21) is fixed inside the shield (3) at the end away from the air inlet (5). A second diversion oblique shield (22) is fixed outside the variable frequency motor body (1) at the end away from the fan blade (7). An exhaust port (23) is provided between the second diversion oblique shield (22) and the first diversion oblique shield (21).

2. The energy-saving variable frequency motor device for a drum washing machine according to claim 1, characterized in that: The conical cover (24) gradually narrows from right to left, and there is a gap between one end of the conical cover (24) and the variable frequency motor body (1).

3. The energy-saving variable frequency motor device for a drum washing machine according to claim 1, characterized in that: The heat-conducting column (25) is fixed to the variable frequency motor body (1) and the heat-conducting column (25) is fixed to the protective cover (3) by welding, and adjacent heat-conducting columns (25) are evenly distributed.

4. The energy-saving variable frequency motor device for a drum washing machine according to claim 1, characterized in that: The dustproof component (6) includes a dustproof plate (61), which is installed in the air inlet (5). The dustproof plate (61) is fixed with a clamping plate (62) at both ends. The protective cover (3) has a clamping groove (63) on both sides at one end, which corresponds to the clamping plate (62). The clamping plate (62) and the protective cover (3) are connected by a fixing bolt (64). The clamping groove (63) has a fixing hole (65) corresponding to the fixing bolt (64).

5. The energy-saving variable frequency motor device for a drum washing machine according to claim 4, characterized in that: One end of the card plate (62) is fixed with a pull ring (66). The card plate (62) has a through hole corresponding to the fixing bolt (64). After the dustproof plate (61) is installed into the air inlet (5), the side of the dustproof plate (61) is tightly attached to the inner wall of the air inlet (5).

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