Fan

Abstract

The utility model relates to a fan and belongs to the technical field of fans, a plastic package motor of the fan is detachably connected with a shell through supporting feet, the supporting feet are directly connected with the plastic package motor to replace a mounting lug structure, the weight of the plastic package motor can be effectively reduced, impact of the plastic package motor on a connecting structure during working is reduced, and meanwhile the service life of the plastic package motor is prolonged. The connecting plate is embedded in the bottom of the casing of the plastic package motor, the connecting plate can effectively improve the strength of the bottom of the plastic package motor, the connecting pieces between the supporting legs and the plastic package motor are connected to the connecting plate, abrasion of the connecting pieces to the bottom of the plastic package motor due to impact during working of the plastic package motor is reduced, and the service life of the plastic package motor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a fan. Background Art

[0002] A fan is a machine that moves gas through mechanical motion. It relies on input mechanical energy to increase gas pressure and discharge the gas. Plastic-encapsulated motors are commonly mounted using mounting ears, but these ears are susceptible to breakage due to impact. Thickening and strengthening these ears increases the weight of the motor itself. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a fan.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A fan comprises a plastic-sealed motor, a wind wheel, a housing and supporting legs;

[0006] A cavity is left in the shell, and an air inlet and an air outlet are provided on the shell;

[0007] The wind wheel is rotatably arranged in the cavity of the shell and rotates in the cavity of the shell;

[0008] The plastic-encapsulated motor is detachably connected to the top of the casing through the support leg and is transmission-connected to the wind wheel. The plastic-encapsulated motor includes a casing, a connecting plate is provided in the bottom of the casing, a first connecting hole is provided on the connecting plate, a fifth connecting hole is also provided at the bottom of the casing, the fifth connecting hole is communicated with the first connecting hole, a second connecting hole is provided at one end of the support leg, a connecting member passes through the first connecting hole, the second connecting hole and the fifth connecting hole to connect one end of the support leg to the top of the casing, and the other end of the support leg is connected to the top of the casing; the plastic-encapsulated motor is used to drive the wind wheel to rotate.

[0009] According to some embodiments of the present invention, the connecting plate is made of metal.

[0010] According to some embodiments of the present invention, the number of the first connecting holes is not less than one, the number of the supporting legs is the same as the number of the first connecting holes, and a fourth connecting hole is further provided at the other end of the supporting leg, and the connecting member passes through the fourth connecting hole to detachably connect the other end of the supporting leg to the top of the shell.

[0011] According to some embodiments of the present invention, the connecting plate has a first mounting hole, which connects the inside of the casing with the outside of the casing; a second mounting hole is provided on the top of the casing; a rotating shaft is also provided in the plastic-encapsulated motor, and the rotating shaft passes through the first mounting hole and the second mounting hole respectively and is connected to the wind wheel, and the plastic-encapsulated motor drives the wind wheel to rotate through the rotating shaft.

[0012] According to some embodiments of the present invention, a bearing is further provided between the first mounting hole and the rotating shaft.

[0013] According to some embodiments of the present invention, the plastic-encapsulated motor is further provided with a cover, and the cover is detachably connected to the housing.

[0014] According to some embodiments of the present invention, a boss is provided on a side of the cover, a groove is provided on an inner side wall of the housing, and the cover and the housing are interference-fitted with each other through the boss and the groove.

[0015] According to some embodiments of the present invention, the connecting plate is circular, and recessed portions are provided around the connecting plate.

[0016] According to some embodiments of the present invention, the connecting plate is a polygonal structure.

[0017] According to some embodiments of the present invention, a mounting groove is reserved at the bottom of the housing for mounting the support foot.

[0018] A fan according to an embodiment of the utility model has at least the following technical effects: the plastic-encapsulated motor is detachably connected to the outer casing via the supporting feet, and the supporting feet are used to directly connect to the plastic-encapsulated motor to replace the mounting ear structure, which can effectively reduce the weight of the plastic-encapsulated motor itself and reduce the impact of the plastic-encapsulated motor on the connecting structure during operation. At the same time, a connecting plate is embedded in the bottom of the casing of the plastic-encapsulated motor, and the connecting plate can effectively improve the strength of the bottom of the plastic-encapsulated motor. The connecting parts between the supporting feet and the plastic-encapsulated motor are connected to the connecting plate, which reduces the wear of the connecting parts on the bottom of the plastic-encapsulated motor due to the impact of the plastic-encapsulated motor during operation, thereby improving the service life of the plastic-encapsulated motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is an overall structural diagram provided in one embodiment of the present invention;

[0021] Figure 2 This is a structural diagram provided in one embodiment of the present invention;

[0022] Figure 3This is an overall disassembled diagram of an extension provided in one embodiment of the present utility model;

[0023] Figure 4 This is a partial structural disassembly diagram provided in one embodiment of the present invention;

[0024] Figure 5 This is a disassembled diagram of the structure of a plastic-encapsulated motor provided in one embodiment of the present invention;

[0025] Figure 6 This is a structural diagram of a plastic-encapsulated motor provided in one embodiment of the present invention.

[0026] In the figure: 100, plastic-encapsulated motor; 110, casing; 111, mounting slot; 112, groove; 113, fifth connecting hole; 120, cover; 121, boss; 122, third mounting hole; 130, connecting plate; 131, first connecting hole; 132, first mounting hole; 133, third connecting hole; 134, recessed portion; 140, rotating shaft; 210, wind wheel; 220, casing; 221, second mounting hole; 222, air inlet; 223, air outlet; 300, support leg; 301, second connecting hole; 302, fourth connecting hole. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0028] Please refer to Figure 1-4 The fan provided in this embodiment includes a plastic-encapsulated motor 100, a wind wheel 210, a housing 220 and a support leg 300;

[0029] A cavity is left in the housing 220, and an air inlet 222 and an air outlet 223 are provided on the housing 220;

[0030] The wind wheel 210 is rotatably disposed in the cavity of the housing 220 and rotates in the cavity of the housing 220;

[0031] The plastic-encapsulated motor 100 is detachably connected to the top of the casing 220 through a support leg 300 and is transmission-connected to the wind wheel 210. The plastic-encapsulated motor 100 includes a casing 110, a connecting plate 130 is fixedly arranged in the casing 110, a first connecting hole 131 is provided on the connecting plate 130, and a fifth connecting hole 113 is also provided at the bottom of the casing 110, and the fifth connecting hole 113 is connected to the first connecting hole 131; a second connecting hole 301 is provided at one end of the support leg 300, and a connecting member passes through the first connecting hole 131, the second connecting hole 301 and the fifth connecting hole 113 to connect one end of the support leg 300 to the bottom of the casing 110, and the other end of the support leg 300 is connected to the top of the casing 220. The plastic-encapsulated motor 100 is used to drive the wind wheel 210 to rotate.

[0032] In this embodiment, the plastic-encapsulated motor 100 is detachably connected to the housing 220 via the support legs 300. Using the support legs 300 to directly connect to the plastic-encapsulated motor 100 to replace the mounting ear structure can effectively reduce the weight of the plastic-encapsulated motor 100 itself and reduce the impact of the plastic-encapsulated motor 100 on the connecting structure during operation. At the same time, a connecting plate 130 is embedded in the bottom of the housing 110 of the plastic-encapsulated motor 100. The connecting plate 130 can effectively improve the strength of the bottom of the plastic-encapsulated motor 100. The connecting piece between the support legs 300 and the plastic-encapsulated motor 100 is connected to the connecting plate 130, reducing the wear of the connecting piece on the bottom of the plastic-encapsulated motor 100 due to the impact of the plastic-encapsulated motor 100 during operation, thereby improving the service life of the plastic-encapsulated motor 100.

[0033] Please refer to Figure 4 In a further embodiment of the present invention, the connecting plate 130 is made of metal.

[0034] In a further embodiment of the present invention, the number of the first connecting holes 131 is not less than one, the number of the supporting legs 300 is the same as the number of the first connecting holes 131, and a fourth connecting hole 302 is further provided at the other end of the supporting leg 300, and the connecting member passes through the fourth connecting hole 302 to detachably connect the other end of the supporting leg 300 to the top of the shell 220.

[0035] In this embodiment, the plastic-encapsulated motor 100 is provided with a plurality of first connection holes 131 and is detachably connected to the housing 220 via a plurality of legs 300 , which can enhance the stability of the connection between the plastic-encapsulated motor 100 and the housing 220 and further improve the reliability of the fan.

[0036] Please refer to Figure 2-3In a further embodiment of the present invention, the connecting plate 130 has a first mounting hole 132, which passes through the housing 110; a second mounting hole 221 is provided on the top of the outer shell 220; a rotating shaft 140 is also provided in the plastic-encapsulated motor 100, and the rotating shaft 140 passes through the first mounting hole 132 and the second mounting hole 221 respectively and is connected to the wind wheel 210, and the plastic-encapsulated motor 100 drives the wind wheel 210 to rotate through the rotating shaft 140.

[0037] In this embodiment, a coil is provided on the inner wall of the casing 110, and the coil is arranged around the rotating shaft 140. The casing 110 and the coil together constitute the stator of the plastic-encapsulated motor 100. The rotating shaft 140 is the rotor of the plastic-encapsulated motor 100. One end of the rotating shaft 140 is located in the casing 110 and rotates under the action of the coil. The other end of the rotating shaft 140 passes through the first mounting hole 132 at the bottom of the casing 110 and the second mounting hole 221 at the top of the outer shell 220 and is connected to the wind wheel 210 to drive the wind wheel 210 to rotate.

[0038] In a further embodiment of the present invention, a bearing is further provided between the first mounting hole 132 and the rotating shaft 140 .

[0039] In a further embodiment of the present invention, the plastic-encapsulated motor 100 is further provided with a cover 120 , and the cover 120 is detachably connected to the housing 110 .

[0040] In this embodiment, the cover 120 is a plastic cover, which can effectively improve the insulation strength of the motor cover. At the same time, a detachable connection is adopted between the housing 110 and the cover 120, which improves the convenience of disassembly and assembly of the plastic-encapsulated motor 100.

[0041] At the same time, a third mounting hole 122 is also reserved on the cover 120 , and the rotor in the plastic-encapsulated motor 100 can also extend to the outside of the plastic-encapsulated motor 100 through the third mounting hole 122 and be connected to an external device.

[0042] Please refer to Figure 5-6 In a further embodiment of the present invention, the cover 120 and the housing 110 are interference fit.

[0043] In this embodiment, a boss 121 is provided on the side of the cover 120, and a groove 112 is provided on the inner wall of the housing 110. The groove 112 and the boss 121 are interference fit to achieve a detachable connection between the housing 110 and the cover 120.

[0044] Please refer to Figure 4 In a further embodiment of the present invention, the connecting plate 130 is circular, and a recessed portion 134 is provided around the connecting plate 130 .

[0045] In this embodiment, recessed portions 134 are provided around the connecting plate 130 , and the housing 110 fills the recessed portions 134 to limit the connecting plate 130 and prevent the connecting plate 130 from being displaced in the housing 110 during operation of the plastic-encapsulated motor 100 .

[0046] Furthermore, a third connection hole 133 is provided on the connection plate 130 . The third connection hole 133 cooperates with the recessed portion 134 to further ensure that the connection plate 130 does not move within the housing 110 during operation of the plastic-encapsulated motor 100 .

[0047] In a further embodiment of the present invention, the connecting plate 130 is a polygonal structure.

[0048] In this embodiment, the connecting plate 130 has a polygonal structure to prevent the connecting plate 130 from being displaced within the housing 110 during operation of the plastic-encapsulated motor 100 .

[0049] In a further embodiment of the present invention, a mounting groove 111 is reserved at the bottom of the housing 110 for mounting the support leg 300 .

[0050] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fan, characterized in that: It comprises a plastic-encapsulated motor (100), a wind wheel (210), a housing (220) and a support leg (300); A cavity is left in the shell (220), and an air inlet (222) and an air outlet (223) are provided on the shell (220); The wind wheel (210) is rotatably disposed in the cavity of the housing (220) and rotates in the cavity of the housing (220); The plastic-encapsulated motor (100) is detachably connected to the top of the housing (220) via the support legs (300) and is transmission-connected to the wind wheel (210). The plastic-encapsulated motor (100) comprises a housing (110), a connecting plate (130) is fixedly provided in the housing (110), a first connecting hole (131) is provided on the connecting plate (130), and a fifth connecting hole (113) is provided at the bottom of the housing (110). 13) is connected to the first connecting hole (131); one end of the support leg (300) is provided with a second connecting hole (301), and a connecting member passes through the first connecting hole (131), the second connecting hole (301) and the fifth connecting hole (113) to connect one end of the support leg (300) to the bottom of the casing (110), and the other end of the support leg (300) is connected to the top of the housing (220), and the plastic-encapsulated motor (100) is used to drive the wind wheel (210) to rotate.

2. A fan according to claim 1, characterized in that: The connecting plate (130) is made of metal.

3. A fan according to claim 1, characterized in that: The number of the first connection holes (131) is not less than one, the number of the legs (300) is the same as the number of the first connection holes (131), and the other end of the leg (300) is further provided with a fourth connection hole (302), and a connecting member passes through the fourth connection hole (302) to detachably connect the other end of the leg (300) to the top of the housing (220).

4. A fan according to claim 1, characterized in that: The connecting plate (130) is provided with a first mounting hole (132), the first mounting hole (132) communicating with the interior of the housing (110) and the exterior of the housing (110); a second mounting hole (221) is provided on the top of the outer shell (220); a rotating shaft (140) is further provided in the plastic-encapsulated motor (100), the rotating shaft (140) respectively passing through the first mounting hole (132) and the second mounting hole (221) to be connected to the wind wheel (210), and the plastic-encapsulated motor (100) drives the wind wheel (210) to rotate via the rotating shaft (140).

5. A fan according to claim 4, characterized in that: A bearing is also provided between the first mounting hole (132) and the rotating shaft (140).

6. A fan according to claim 1, characterized in that: The plastic-encapsulated motor (100) is further provided with a cover (120), and the cover (120) is detachably connected to the housing (110).

7. A fan according to claim 6, characterized in that: A boss (121) is provided on the side of the machine cover (120), a groove (112) is provided on the inner side wall of the machine housing (110), and the machine cover (120) and the machine housing (110) are interference-fitted via the boss (121) and the groove (112).

8. The fan according to claim 1, characterized in that: The connecting plate (130) is circular, and recessed portions (134) are provided around the connecting plate (130).

9. The fan according to claim 1, characterized in that: The connecting plate (130) is a polygonal structure.

10. The fan according to claim 1, characterized in that: A mounting groove (111) is reserved at the bottom of the housing (110) for mounting the support leg (300).

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