CN209072218U - A kind of waterproof construction of external rotor electric machine - Google Patents

Abstract

The utility model discloses a kind of waterproof constructions of external rotor electric machine, including stator module, outer rotor component and mounting seat, mounting seat includes end plate, one end center of end plate is protruding with receiver, it is equipped in the receiver along the perforative centre bore of receiver axis, stator core is sleeved on outside receiver, both ends are respectively provided with a bearing chamber in receiver, bearing is installed in bearing chamber, shaft is mounted in receiver by two bearings, protrude an annular flange in the other end center of end plate, waterproof cover is arranged with outside annular convex platform, the lateral surface of the annular convex platform is equipped with first annular groove, the waterproof cover is equipped with first annular boss, when the waterproof cover is set in annular flange, first annular boss is stuck in first annular groove, waterproof cover can be effectively prevented to loosen, fastening effect is good, structure is simple, installation It is convenient.Good water-proof effect guarantees that motor works normally.

Description

A kind of waterproof construction of external rotor electric machine

Technical field:

The utility model relates to a kind of waterproof constructions of external rotor electric machine.

Background technique:

Existing outer rotor outdoor motor includes stator module, outer rotor component and mounting seat, and outer rotor component includes Rotor case, axle sleeve and shaft, stator module are sleeved on the inner cavity of rotor case, rotor case and shaft and connect by the way that axle sleeve is fixed It connects, stator module includes stator core and overhang insulation and coil windings, and mounting seat includes end plate, cardiac prominence in one end of end plate There is receiver out, is equipped in the receiver along the perforative centre bore of receiver axis, stator core is sleeved on outside receiver, Both ends are respectively provided with a bearing chamber in receiver, and bearing is equipped in bearing chamber, and shaft is mounted on receiver by two bearings Interior, the other end and centre bore of end plate are perforations, and bearing chamber is not provided with sealing structure, and it is close to pass through bearing cap on bearing chamber Envelope, during outdoor application, sealing effect is bad, and rainwater and dust are easily accessible inside motor.

Utility model content:

The purpose of the utility model is to provide a kind of waterproof constructions of external rotor electric machine, solve motor bearings in the prior art The problem of room water inlet sealing, sealing effect is bad, and rainwater and dust are easily accessible the technical problem inside motor.

The purpose of this utility model is achieved by following technical proposals.

A kind of waterproof construction of external rotor electric machine, including stator module, outer rotor component and mounting seat, outer rotor component Including rotor case, axle sleeve and shaft, it is solid by axle sleeve that stator module is sleeved on the inner cavity of rotor case, rotor case and shaft Fixed connection, stator module include stator core, overhang insulation and coil windings, and mounting seat includes end plate, in one end of end plate The heart is protruding with receiver, is equipped in the receiver along the perforative centre bore of receiver axis, stator core is sleeved on sleeve Seat is outer, and both ends are respectively provided with a bearing chamber in receiver, and bearing is equipped in bearing chamber, and shaft is mounted on set by two bearings In cylinder base, it is characterised in that: an annular flange is protruded at the other end center of the end plate, and waterproof is arranged with outside the annular convex platform Lid, the lateral surface of the annular convex platform are equipped with first annular groove, and the waterproof cover is equipped with first annular boss, described anti- When water cover is set in annular flange, first annular boss is stuck in first annular groove.

The annular outer ring and annular inner race that the waterproof cover includes top plate and the bottom surface from top plate protrudes above, the annular are outer A card slot is formed between circle and annular inner race, the medial surface of the annular outer ring is equipped with first annular boss, waterproof cover installation When in annular flange, annular flange is nested in card slot, the first annular groove of annular flange and the first ring of annular outer ring The cooperation of shape boss.

The lateral surface of the annular inner race is equipped with the second annular convex platform, and the medial surface of the annular flange is equipped with second Annular groove, annular flange protrude into card slot, and the second annular convex platform of annular inner race and the second annular groove of annular flange are matched It closes.

The waterproof cover is as made of silica gel integral production.

The lateral surface of the annular inner race is in inclined-plane, and the medial surface of annular outer ring is in inclined-plane.

Mold insert is embedded on the medial surface of the annular inner race of the waterproof cover.

Fixed cover is arranged with outside the waterproof cover.

Card slot between the annular inner race and annular outer ring is in splayed.

The utility model compared with prior art, has the effect that

1) the utility model includes stator module, outer rotor component and mounting seat, and mounting seat includes end plate, end plate One end center is protruding with receiver, is equipped in the receiver along the perforative centre bore of receiver axis, stator core suit Outside receiver, both ends are respectively provided with a bearing chamber in receiver, and bearing is equipped in bearing chamber, and shaft passes through two bearing peaces In receiver, an annular flange is protruded at the other end center of the end plate, is arranged with waterproof cover outside the annular convex platform, institute The lateral surface for stating annular convex platform is equipped with first annular groove, and the waterproof cover is equipped with first annular boss, the waterproof cover When being set in annular flange, first annular boss is stuck in first annular groove, and waterproof cover can be effectively prevented and loosen, fastening Effect is good, and structure is simple, easy for installation, and rainwater and dust is effectively prevent to enter inside motor, good water-proof effect, guarantees motor It works normally, extends motor service life；

2) lateral surface of the annular inner race is equipped with the second annular convex platform, and the medial surface of the annular flange is equipped with the Second ring groove, annular flange protrude into card slot, the second annular convex platform of annular inner race and the second annular groove of annular flange Cooperation, can be effectively prevented waterproof cover and loosens, and fastening effect is good, and structure is simple, easy for installation, effectively prevent rainwater and dust into Enter to inside motor, good water-proof effect, guarantees that motor works normally, extend motor service life；

3) waterproof cover is that mold insert is embedded on the medial surface of the annular inner race of waterproof cover as made of silica gel integral production, Reinforce the intensity of silica gel, reduces silica gel deformation, waterproof cover is made to play better seal effect；

4) waterproof cover is to be arranged with fixed cover outside waterproof cover as made of silica gel integral production, anti-by fixed cover fastening Water cover reduces silica gel deformation, waterproof cover is made to play better seal effect.

Detailed description of the invention:

Fig. 1 is the perspective view of utility model；

Fig. 2 is the perspective view exploded view of utility model；

Fig. 3 is the front view of the utility model；

Fig. 4 is the cross-sectional view of A-A in Fig. 3；

Fig. 5 is the partial structural diagram of the utility model；

Fig. 6 is the partial structurtes exploded view of the utility model；

Fig. 7 is the schematic diagram of the utility model；

Fig. 8 is the cross-sectional view of B-B in Fig. 7；

Fig. 9 is the sectional exploded view of the utility model；

Figure 10 is the partial enlarged view of C in Fig. 9；

Figure 11 is the structural schematic diagram of the utility model waterproof cover.

Specific embodiment:

The utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.

Embodiment one: as shown in Figure 1 to 11, the present embodiment is a kind of waterproof construction of external rotor electric machine, including stator Component 30, outer rotor component 40 and mounting seat 1, outer rotor component 40 include rotor case 41, axle sleeve 42 and shaft 43, are determined Sub-component 30 is sleeved on the inner cavity of rotor case 41, and rotor case 41 is fixedly connected with shaft 43 by axle sleeve 42, stator module 30 include stator core 31, overhang insulation 32 and coil windings 33, and mounting seat 1 includes end plate 11, one end center of end plate 11 It is protruding with receiver 12, is equipped in the receiver 12 along the perforative centre bore 13 of 12 axis of receiver, stator core suit Outside receiver 12, both ends are respectively provided with a bearing chamber 14 in receiver 12, and bearing is equipped in bearing chamber 14, and shaft passes through two A bearing is mounted in receiver 12, it is characterised in that: an annular flange 15 is protruded at the other end center of the end plate 11, described Waterproof cover 2 is arranged with outside annular flange 15, the lateral surface 151 of the annular flange 15 is equipped with first annular groove 152, institute Waterproof cover 2 is stated equipped with first annular boss 20, when the waterproof cover 2 is set in annular flange 15, first annular boss 20 It is stuck in first annular groove 152.

The waterproof cover 2 includes top plate 21 and the annular outer ring 22 and annular inner race 23 that protrude above from the bottom surface of top plate 21, Form a card slot 24 between the annular outer ring 22 and annular inner race 23, the medial surface 221 of the annular outer ring 22 is equipped with the One annular convex platform 20, when waterproof cover 2 is mounted in annular flange 15, annular flange 15 is nested in card slot 24, annular flange 15 First annular groove 152 and annular outer ring 22 first annular boss 20 cooperate.

The lateral surface 231 of the annular inner race 23 is equipped with the second annular convex platform 232, the inside of the annular flange 15 Face 153 is equipped with second annular groove 154, and annular flange 15 protrudes into card slot 24, the second annular convex platform of annular inner race 23 232 and annular flange 15 second annular groove 154 cooperate.

The lateral surface 231 of annular inner race 23 is in inclined-plane, and the medial surface 221 of annular outer ring 22 is in inclined-plane.

The waterproof cover 2 is as made of silica gel integral production.

Mold insert 3 is embedded on the medial surface 233 of the annular inner race 23 of the waterproof cover 2.

Fixed cover 4 is arranged with outside the waterproof cover 2.

Card slot 24 between the annular inner race 23 and annular outer ring 22 is in splayed.

Above embodiments are the better embodiment of the utility model, and however, the embodiments of the present invention are not limited thereto, Made changes, modifications, substitutions, combinations, simplifications under other any spiritual essence and principles without departing from the utility model are Equivalent substitute mode, is included within the protection scope of the utility model.

Claims (8)

1. a kind of waterproof construction of external rotor electric machine, including stator module (30), outer rotor component (40) and mounting seat (1), Outer rotor component (40) includes rotor case (41), axle sleeve (42) and shaft (43), and stator module (30) is sleeved on rotor case (41) inner cavity, rotor case (41) are fixedly connected with shaft (43) by axle sleeve (42), and stator module (30) includes stator iron Core (31), overhang insulation (32) and coil windings (33), mounting seat (1) include end plate (11), one end center of end plate (11) It is protruding with receiver (12), is equipped in the receiver (12) along the perforative centre bore of receiver (12) axis (13), stator Outside mounted in receiver (12), receiver (12) interior both ends are respectively provided with a bearing chamber (14), installation in bearing chamber (14) to iron core sleeve There is bearing, shaft is mounted in receiver (12) by two bearings, it is characterised in that: the other end center of the end plate (11) It protrudes an annular flange (15), is arranged with waterproof cover (2) outside the annular flange (15), the lateral surface of the annular flange (15) (151) first annular groove (152) are equipped with, the waterproof cover (2) is equipped with first annular boss (20), the waterproof cover (2) when being set on annular flange (15), first annular boss (20) is stuck in first annular groove (152).

2. a kind of waterproof construction of external rotor electric machine according to claim 1, it is characterised in that: waterproof cover (2) packet Include top plate (21) and the annular outer ring (22) protruded above from the bottom surface of top plate (21) and annular inner race (23), the annular outer ring (22) it is formed between annular inner race (23) card slot (24), the medial surface (221) of the annular outer ring (22) is equipped with first Annular convex platform (20), when waterproof cover (2) is mounted on annular flange (15), annular flange (15) is nested in card slot (24), ring The first annular groove (152) of shape flange (15) and first annular boss (20) cooperation of annular outer ring (22).

3. a kind of waterproof construction of external rotor electric machine according to claim 2, it is characterised in that: the annular inner race (23) Lateral surface (231) be equipped with the second annular convex platform (232), the medial surface (153) of the annular flange (15) is equipped with second Annular groove (154), annular flange (15) protrude into card slot (24), the second annular convex platform (232) and ring of annular inner race (23) The second annular groove (154) of shape flange (15) cooperates.

4. a kind of waterproof construction of external rotor electric machine according to claim 2 or 3, it is characterised in that: the waterproof cover (2) It is as made of silica gel integral production.

5. a kind of waterproof construction of external rotor electric machine according to claim 4, it is characterised in that: outside annular inner race (23) Side (231) is inclined-plane, and the medial surface (221) of annular outer ring (22) is inclined-plane.

6. a kind of waterproof construction of external rotor electric machine according to claim 5, it is characterised in that: the waterproof cover (2) Mold insert (3) are embedded on the medial surface (233) of annular inner race (23).

7. a kind of waterproof construction of external rotor electric machine according to claim 6, it is characterised in that: the waterproof cover (2) is outside It is arranged with fixed cover (4).

8. a kind of waterproof construction of external rotor electric machine according to claim 4, it is characterised in that: the annular inner race (23) Card slot (24) between annular outer ring (22) is in splayed.