CN218493886U - Exhaust waterproof cover of glue-pouring fan - Google Patents

Abstract

The utility model discloses an exhaust waterproof cover of a glue filling fan, belonging to the technical field of fans, which comprises a waterproof cover main body connected on a fan frame, wherein a cavity for accommodating a circuit board and glue solution is formed between the fan frame and the waterproof cover main body; the waterproof cover main body is provided with an exhaust duct communicated with the cavity, the exhaust duct is provided with a first port facing the fan frame and a second port arranged opposite to the first port, and the peripheral area of the first port is bulged to form a boss extending into the cavity. This scheme exhaust port moves down, and gas receives the glue solution extrusion to collect to the port in the cavity, and the exhaust is quick and residual gas volume is few, and the exhaust effect promotes.

Description

Exhaust waterproof cover of glue-pouring fan

Technical Field

The utility model belongs to the technical field of the fan, concretely relates to waterproof cover of exhaust of encapsulating fan.

Background

The motor, the stator and the circuit board of the cooling fan are completely coated by the glue in a glue filling mode, so that the positions of the motor, the stator and the circuit board in a fan frame can be solidified, the effects of water immersion resistance and water vapor resistance can be improved, and the glue filling fan is more suitable for a harsh environment compared with a common fan.

Chinese patent CN215719648U provides a radiator fan with encapsulating waterproof construction, including fan frame, flabellum, encapsulating watertight fittings and slewing mechanism, be equipped with the recess in the middle of the fan frame bottom, the fan frame is equipped with the draw-in groove, the inboard card of flabellum is equipped with the dead axle, encapsulating watertight fittings includes encapsulating lid, copper pipe and copper sheathing, the dead axle passes through slewing mechanism swing joint with the copper pipe, copper pipe and copper sheathing muffjoint, the inboard encapsulating lid that supports of draw-in groove.

Wherein, form sealed cavity in the encapsulating watertight fittings in order to hold glue, the encapsulating is no matter to be in order to assemble earlier back through the pore injection glue, still the mode of assembling after the injecting glue of elder generation is gone on, all can lead to the air in the cavity to be difficult to discharge, and atmospheric pressure rises, and the glue solution is difficult to fast continuous injection or the fan structure is difficult to the equipment of fastening to, remaining air bubble in the glue solution, destroy the glue solution compactness, lead to fan dampproofing and waterproofing performance to reduce.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the technical scheme of the utility model is that: an exhaust waterproof cover of a glue filling fan comprises a waterproof cover main body connected to a fan frame, wherein a cavity for accommodating a circuit board and glue is formed between the fan frame and the waterproof cover main body;

the waterproof cover main body is provided with an exhaust duct communicated with the cavity, the exhaust duct is provided with a first port facing the fan frame and a second port arranged opposite to the first port, and the peripheral area of the first port is bulged to form a boss extending into the cavity.

Specifically, the outer peripheral area of the second port sinks towards the fan frame to form an empty groove.

Specifically, the boss and the hollow groove are both conical.

Specifically, the taper is conical, and the exhaust duct is coaxial with the conical shape.

Specifically, the circuit board includes electronic components and wiring, waterproof cover main part local pressurized stretches towards the circuit board and forms the lug of butt electronic components.

Specifically, the surface of the bump is pasted with tinfoil.

Specifically, the edge of the waterproof cover main body extends towards the fan frame to form an edge strip, and a notch for avoiding wiring is formed in the edge strip.

Specifically, the exhaust hole is arranged on the waterproof cover main body avoiding the notch and the protrusion.

The technical scheme provided by the utility model compare with prior art and have following advantage:

1. the port of the exhaust duct moves downwards due to the bulge of the boss, and gas in the cavity is extruded by the glue solution and collected to the port, so that the exhaust is quick, the amount of residual gas is small, and the exhaust effect is improved;

2. the arrangement of the empty groove matched with the boss is beneficial to punch forming of the boss, positioning and guiding are carried out on the exhaust duct, the sunken structure of the empty groove can contain glue liquid for plugging the exhaust duct, and plugging is fast and firm.

Drawings

FIG. 1 is a connection diagram of an embodiment of the present invention;

FIG. 2 is a structural diagram of an exhaust waterproof cover in the embodiment of the present invention;

FIG. 3 is a bottom view of the exhaust waterproof cover according to the embodiment of the present invention;

fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2 according to the present invention;

fig. 5 is a partially enlarged view of the point B in fig. 4 according to the present invention.

Shown in the figure:

1. a waterproof cover main body; 11. a cover plate; 12. edging; 13. a cover body shaft hole; 14. an exhaust duct; 141. a first port; 142. a second port; 15. a bump; 16. a notch; 17. an empty groove; 18. a boss; 2. a fan frame; 21. a frame body; 22. a chassis; 23. a rib; 24. a wire slot; 3. a fan shaft.

Detailed Description

For the convenience of understanding, the air-exhausting waterproof cover of the glue-pouring fan is described below with reference to the following embodiments, which should be understood to be merely illustrative of the present invention and not limiting the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1, an exhaust waterproof cover of a glue pouring fan comprises a waterproof cover main body 1, wherein the waterproof cover main body 1 is connected to a fan frame 2, the fan frame 2 comprises a frame body 21, a chassis 22, ribs 23 and a wire casing 24, the chassis 22 is arranged on one side of the frame body 21, the chassis 22 is circular, the axis of the chassis 22 is overlapped with the central line of the frame body 21, the periphery of the chassis 22 is connected with a plurality of ribs 23, the chassis 22 is fixed on the frame body 21 by the plurality of ribs 23, the wire casing 24 is arranged between the frame body 21 and the chassis 22, and the wire casing 24 is communicated with the chassis 22; the waterproof cover main body 1 is connected to the chassis 22, and a cavity is formed between the waterproof cover main body and the chassis 22, and is used for placing a circuit board; the circuit board comprises a wiring and electronic components, a plurality of electronic components are arranged on the circuit board, and the electronic components are connected with the wiring.

As shown in fig. 2 to 5, the waterproof cover main body 1 includes a cover plate 11, an edge strip 12, a cover body shaft hole 13, an exhaust duct 14, a protrusion 15 and a notch 16, the cover plate 11 is circular, the edge of the cover plate is bent toward the cavity to form the edge strip 12, a connection wire extends from the cavity to the wire groove 24 and passes through the wire groove 24 to be communicated with a power supply, the edge strip 12 is provided with the notch 16 to avoid the connection wire, the cover body shaft hole 13 is provided in the middle of the cover plate 11, a bottom layer shaft hole aligned with the cover body shaft hole 13 is provided in the middle of the chassis 22, and a fan shaft 3 is inserted between the cover body shaft hole 13 and the bottom layer shaft hole; the local area of apron 11 receives the power extrusion towards the circuit board and warp, and the deformation part forms one side and caves in, one side extends the lug 15 in the cavity, and the surface subsides of lug 15 cover the tinfoil and butt electronic components, not only can fix electronic components's position, can also insulate against heat, and the quantity and the position of lug 15 and electronic components's quantity and position one-to-one correspond.

A conical boss 18 protruding towards the fan frame 2 is arranged on the cover plate 11 far away from the notch 16 and avoiding the lug 15, the boss 18 is positioned on the inner side of the cover plate 11, the outer side of the cover plate 11 at the position corresponding to the boss 18 sinks to form a conical empty groove 17, the conical empty groove 17 is favorable for stamping, the empty groove 17 is coaxial with the boss 18, an exhaust duct 14 coaxial with the boss 18 is arranged on the boss 18, the exhaust duct 14 is provided with a first port 141 and a second port 142, the boss 18 is positioned on the periphery of the first port 141, and the empty groove 17 is positioned on the periphery of the second port 142; the first port 141 of the exhaust duct 14 is moved to the inner side of the cavity after the boss 18 is raised, the exhaust port moves downwards, after glue liquid is injected into the cavity, gas in the cavity is compressed and then collected to the exhaust port, exhaust is facilitated, residual gas in the cavity is trace, the empty groove 17 and the boss 18 are arranged in a matched mode, the waterproof cover main body 1 can be punched to form the empty groove 17 and the boss 18 in one step, the opening position of the subsequent exhaust duct 14 is determined, opening guiding is achieved, after the exhaust duct 14 is exhausted, glue needs to be applied to plugging, the sunken structure of the empty groove 17 can contain the glue liquid, plugging is convenient, plugging is firm, and the solidified glue liquid is not prone to being separated from the waterproof cover main body 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some or all of the technical features thereof, without departing from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. An exhaust waterproof cover of a glue filling fan is characterized by comprising a waterproof cover main body connected to a fan frame, wherein a cavity for accommodating a circuit board and glue is formed between the fan frame and the waterproof cover main body;

the waterproof cover main body is provided with an exhaust duct communicated with the cavity, the exhaust duct is provided with a first port facing the fan frame and a second port arranged opposite to the first port, and a boss extending into the cavity is formed by bulging the peripheral area of the first port.

2. The exhaust waterproof cover for a glue pouring fan according to claim 1, wherein the second port outer peripheral region is depressed toward the fan frame to form an empty groove.

3. The exhaust waterproof cover of the glue filling fan as claimed in claim 2, wherein the boss and the hollow groove are tapered.

4. The air-bleeding waterproof cover for glue-pouring fan of claim 3, characterized in that the taper is conical, and the air-bleeding hole is coaxial with the cone.

5. The exhaust waterproof cover of a glue pouring fan as claimed in claim 1, wherein the circuit board comprises electronic components and wiring, and the waterproof cover body is locally pressed to extend toward the circuit board to form a projection abutting against the electronic components.

6. The exhaust waterproof cover of glue pouring fan as claimed in claim 5, wherein the surface of the projection is coated with tinfoil.

7. The exhaust waterproof cover of the glue filling fan as claimed in claim 5, wherein the edge of the waterproof cover main body extends towards the fan frame to form a side strip, and the side strip is provided with a notch for avoiding the connection wire.

8. The exhaust waterproof cover of the glue filling fan as claimed in claim 7, wherein the exhaust holes are provided on the waterproof cover main body which is protruded and the avoiding gap.

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