CN215256995U

CN215256995U - Permanent magnet type direct current brushless fan

Info

Publication number: CN215256995U
Application number: CN202120335866.3U
Authority: CN
Inventors: 刘雪波; 李泽; 余首林
Original assignee: Ningbo Donglai Electric Appliance Co ltd
Current assignee: Ningbo Donglai Electric Appliance Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-21
Anticipated expiration: 2031-02-05

Abstract

The utility model discloses a permanent magnet type direct current brushless fan, which comprises a fan and a base, wherein the bottom of the fan is fixedly connected with a connecting seat, the bottom of the connecting seat is fixedly connected with two first inserted bars and two second inserted bars, the outer walls of the first inserted bars and the second inserted bars are both penetrated and provided with locking holes, the top of the base is penetrated and provided with a plurality of through holes, the top of the base is respectively provided with a first slot and a second slot corresponding to the first inserted bars and the second inserted bars, and a push plate is arranged inside the fan; the utility model discloses a set up gear, first rack, second rack, locking lever, first inserted bar, second inserted bar, locking hole, hand and twist bolt etc. in the later maintenance process, when needing to dismantle the fan, only need the hand of reverse rotation to twist the bolt, make first rack and second rack reset under the effect of spring, make the locking lever withdraw from the locking hole completely and can make progress and take off the fan, easy operation is swift, excellent in use effect.

Description

Permanent magnet type direct current brushless fan

Technical Field

The utility model relates to a fan specifically is a permanent magnetism formula direct current brushless fan.

Background

A permanent magnet brushless motor is a permanent magnet motor that is phase-commutated or current-controlled by an electronic circuit. The permanent magnet brushless motor has two types of sine wave drive and square wave drive; the permanent magnet brushless dc motor is a type of a sensor motor and a positive sensor motor, and the permanent magnet brushless dc fan is a fan using a permanent magnet brushless dc motor as a driver.

However, when the existing permanent magnet brushless direct current fan is installed, a large number of screws and gaskets are mostly needed to be used for fixing, so that the permanent magnet brushless direct current fan is complex to install and disassemble and inconvenient to use in the later maintenance and repair process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a permanent magnetism formula direct current brushless fan to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a permanent magnet type direct current brushless fan comprises a fan and a base, wherein the bottom of the fan is fixedly connected with a connecting seat, the bottom of the connecting seat is fixedly connected with two first insert rods and two second insert rods, the outer walls of the first insert rods and the second insert rods are respectively provided with a locking hole in a penetrating way, the top of the base is provided with a plurality of through holes in a penetrating way, the top of the base is respectively provided with a first inserting groove and a second inserting groove at the positions corresponding to the first insert rods and the second insert rods, a push plate is arranged inside the fan, the center of the outer wall of the push plate is fixedly connected with a guide rod, the fan is provided with a guide hole, the guide rod is positioned in the guide hole, one end of the guide hole is in threaded connection with a hand-screwed bolt, the outer wall of the push plate is symmetrically and fixedly connected with two first racks, the inside of the fan is symmetrically and rotatably connected with two gears, and the inside of the fan is symmetrically and slidably connected with two second racks, the fan comprises a fan body, a first rack and a second rack, wherein the first rack is arranged on the fan body, the second rack is arranged on the fan body, one end of the first rack is fixedly connected with a first gear, the other end of the first rack is fixedly connected with a second gear, the first gear is fixedly connected with the second rack, the second gear is fixedly connected with the third rack, the third rack is fixedly connected with the third rack, the second rack is fixedly connected with the third rack, the third rack is fixedly connected with the fourth rack, the locking rod is matched with the locking hole in size, the first rack and the second rack are meshed with corresponding gears, the fan is fixedly connected with a fixing plate in the inner portion of the fan, a spring is fixedly connected with the side wall of the fixing plate, and one end of the spring is abutted against the side wall of the push plate.

As a further aspect of the present invention: the holding tank has been seted up to the inside of base, push pedal, first rack all are located the holding tank, and push pedal, first rack and holding tank sliding connection, holding tank and first slot intercommunication.

As a further aspect of the present invention: the fan is characterized in that two sliding grooves are symmetrically formed in the fan, the second rack is located in the sliding grooves and is in sliding connection with the sliding grooves, and the sliding grooves are communicated with the corresponding second slots.

As a further aspect of the present invention: the locking hole is a tapered hole, and the slope of the outer wall of the locking rod is the same as that of the inner wall of the tapered hole.

As a further aspect of the present invention: the top of the corresponding part of the base and the connecting seat is embedded with a first rubber pad.

As a further aspect of the present invention: the bottom of base fixedly connected with second rubber pad.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up gear, first rack, second rack, locking lever, first inserted bar, second inserted bar, locking hole, hand and twist bolt etc. in the later maintenance process, when needing to dismantle the fan, only need the hand of reverse rotation to twist the bolt, make first rack and second rack reset under the effect of spring, make the locking lever withdraw from the locking hole completely and can make progress and take off the fan, easy operation is swift, excellent in use effect.

2. The utility model discloses a set up conical locking hole, not only be convenient for insert the tip of locking lever in the locking hole, simultaneously insert the in-process in locking hole gradually as the locking lever, can rectify the locking hole to make the inner wall in locking hole and the complete laminating of outer wall of locking lever, in order to ensure the fixed stability of fan.

3. The utility model discloses a good cushioning effect can be played in the setting of first rubber pad and second rubber pad to reduce the noise that the fan during operation produced because of the vibration, utilize the elasticity of first rubber pad simultaneously, can play certain tensioning effect to first inserted bar and second inserted bar, thereby prevent that the fan from rocking by a wide margin.

Drawings

Fig. 1 is a schematic structural diagram of a permanent magnet dc brushless fan.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a schematic structural diagram of a holding tank in a permanent magnet dc brushless fan.

Fig. 4 is a schematic structural diagram of a first slot and a second slot in a permanent magnet dc brushless fan.

The fan comprises a fan 1, a connecting seat 2, a first inserting rod 3, a second inserting rod 4, a locking hole 5, a base 6, a through hole 7, a first rubber pad 8, a second rubber pad 9, a first slot 10, a second slot 11, an accommodating groove 12, a sliding groove 13, a guide hole 14, a guide rod 15, a push plate 16, a first rack 17, a gear 18, a second rack 19, a locking rod 20, a fixing plate 21, a spring 22 and a hand-screwed bolt 23.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, will combine the embodiment below, it is right to the utility model discloses go on further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have the orientation, configuration, and operation specified in the specification and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 4, in an embodiment of the present invention, a permanent magnet type dc brushless fan includes a fan 1 and a base 6, a connection seat 2 is fixedly connected to the bottom of the fan 1, two first insertion rods 3 and two second insertion rods 4 are fixedly connected to the bottom of the connection seat 2, locking holes 5 are respectively formed through outer walls of the first insertion rods 3 and the second insertion rods 4, a plurality of through holes 7 are formed through the top of the base 6, a first slot 10 and a second slot 11 are respectively formed at positions corresponding to the top of the base 6 and the first insertion rods 3 and the second insertion rods 4, a push plate 16 is disposed inside the fan 1, a guide rod 15 is fixedly connected to a center of an outer wall of the push plate 16, a guide hole 14 is formed in the fan 1, the guide rod 15 is located in the guide hole 14, a hand bolt 23 is threadedly connected to one end of the guide hole 14, the utility model discloses a fan, including push pedal 16, fan, locking lever 20, first rack 17, two first racks 17 of outer wall symmetry fixedly connected with of push pedal 16, the inside symmetry rotation of fan 1 is connected with two gears 18, the inside symmetry sliding connection of fan 1 has two second racks 19, the equal fixedly connected with locking lever 20 of one end of second rack 19, first rack 17, the size looks adaptation of locking lever 20 and locking hole 5, first rack 17, second rack 19 and the gear 18 intermeshing that corresponds, the inside fixedly connected with fixed plate 21 of fan 1, the lateral wall fixedly connected with spring 22 of fixed plate 21, the one end of spring 22 offsets with the lateral wall of push pedal 16.

Holding tank 12 has been seted up to the inside of base 6, push pedal 16, first rack 17 all are located holding tank 12, and push pedal 16,

first rack

17 and 12 sliding connection of holding tank, holding tank 12 and first slot 10 intercommunication.

The fan 1 is characterized in that two sliding grooves 13 are symmetrically formed in the fan 1, the second rack 19 is located in the sliding grooves 13, the second rack 19 is connected with the sliding grooves 13 in a sliding mode, and the sliding grooves 13 are communicated with the corresponding second slots 11.

The locking hole 5 is a tapered hole, and the slope of the outer wall of the locking rod 20 is the same as that of the inner wall of the tapered hole.

The top of the corresponding part of the base 6 and the connecting seat 2 is embedded with a first rubber pad 8.

The bottom of the base 6 is fixedly connected with a second rubber pad 9.

The utility model discloses a theory of operation is:

when the fan 1 needs to be installed, the base 6 is fixed by using the matching through holes 7 such as screws, the first inserting rod 3 is aligned with the first slot 10, the second inserting rod 4 is aligned with the second slot 11 and inserted, then the hand-screwed bolt 23 is rotated, the guide rod 15 is pushed to move into the accommodating groove 12 by the thread matching of the hand-screwed bolt 23 and the guide hole 14, so that the first rack 17 is pushed to move by the push plate 16, the locking rod 20 at the end part of the first rack 17 is inserted into the locking hole 5 on the surface of the first inserting rod 3, and in the moving process of the first rack 17, the second rack 19 can be driven to move reversely by the mutual meshing of the first rack 17, the second rack 19 and the gear 18, so that the locking rod 20 at the end part of the second rack 19 is inserted into the locking hole 5 on the outer wall of the second inserting rod 4, and the fan 1 is fixed.

In the later maintenance process, when the fan 1 needs to be disassembled, the bolt 23 is screwed only by rotating the hand in the reverse direction, the first rack 17 and the second rack 19 are reset under the action of the spring 22, the locking rod 20 completely exits the locking hole 5, the fan 1 can be taken down, the operation is simple and fast, and the using effect is good.

The utility model discloses a set up conical locking hole 5, not only be convenient for insert locking lever 20's tip in locking hole 5, simultaneously insert the in-process of locking hole 5 gradually as locking lever 20, can rectify locking hole 5 to make the inner wall of locking hole 5 laminate completely with locking lever 20's outer wall, in order to ensure the fixed stability of fan 1.

The utility model discloses a good cushioning effect can be played in the setting of first rubber pad 8 and second rubber pad 9 to reduce the noise that fan 1 during operation produced because of the vibration, utilize the elasticity of first rubber pad 8 simultaneously, can play certain tensioning effect to first inserted bar 3 and second inserted bar 4, thereby prevent that fan 1 from rocking by a wide margin.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a brushless fan of permanent magnetism formula direct current, includes fan (1) and base (6), its characterized in that: the fan is characterized in that a connecting seat (2) is fixedly connected to the bottom of the fan (1), two first inserting rods (3) and two second inserting rods (4) are fixedly connected to the bottom of the connecting seat (2), locking holes (5) are formed in the outer walls of the first inserting rods (3) and the second inserting rods (4) in a penetrating mode, a plurality of through holes (7) are formed in the top of the base (6) in a penetrating mode, first inserting grooves (10) and second inserting grooves (11) are formed in the positions, corresponding to the top of the base (6), of the first inserting rods (3) and the second inserting rods (4) respectively, a push plate (16) is arranged inside the fan (1), a guide rod (15) is fixedly connected to the center of the outer wall of the push plate (16), a guide hole (14) is formed in the fan (1), the guide rod (15) is located in the guide hole (14), and a hand-screwing bolt (23) is in threaded connection with one end of the guide hole (14), the utility model discloses a fan, including push pedal (16), fan (1), locking lever (20), the inside symmetry rotation of fan (1) is connected with two gears (18), the inside symmetry sliding connection of fan (1) has two second racks (19), the equal fixedly connected with locking lever (20) of one end of second rack (19), first rack (17), the size of locking lever (20) and the size looks adaptation of locking hole (5), first rack (17), second rack (19) and corresponding gear (18) intermeshing, the inside fixedly connected with fixed plate (21) of fan (1), the lateral wall fixedly connected with spring (22) of fixed plate (21), the one end of spring (22) offsets with the lateral wall of push pedal (16).

2. The permanent magnet brushless dc fan of claim 1, wherein: holding tank (12) have been seted up to the inside of base (6), push pedal (16), first rack (17) all are located holding tank (12), and push pedal (16), first rack (17) and holding tank (12) sliding connection, holding tank (12) and first slot (10) intercommunication.

3. The permanent magnet brushless dc fan of claim 1, wherein: the inside symmetry of fan (1) is provided with two spout (13), second rack (19) are located spout (13), second rack (19) and spout (13) sliding connection, spout (13) and second slot (11) intercommunication that corresponds.

4. The permanent magnet brushless dc fan of claim 1, wherein: the locking hole (5) is a tapered hole, and the slope of the outer wall of the locking rod (20) is the same as that of the inner wall of the tapered hole.

5. The permanent magnet brushless dc fan of claim 1, wherein: the top of the corresponding part of the base (6) and the connecting seat (2) is embedded with a first rubber pad (8).

6. The permanent magnet brushless dc fan of claim 1, wherein: the bottom of the base (6) is fixedly connected with a second rubber pad (9).