CN215071922U

CN215071922U - Waterproof type external rotor motor end cover

Info

Publication number: CN215071922U
Application number: CN202121615172.1U
Authority: CN
Inventors: 张超伟; 李�杰; 龚力杰
Original assignee: Zhejiang Mingzhen Electronics Co ltd
Current assignee: Zhejiang Mingzhen Electronics Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-07
Anticipated expiration: 2031-07-15

Abstract

The utility model provides a waterproof type external rotor electric machine end cover, the inside of waterproof type external rotor electric machine end cover is equipped with the through-hole, and the up end of waterproof type external rotor electric machine end cover is equipped with the boss, and the wherein one end of through-hole is equipped with the opening, and the opening is located the boss, and fixedly connected with covers open-ended protective cover on the boss, the protective cover with be connected with sealed glue between the boss. Set up the boss and help preventing that water from staying on the protective cover surface, effectively played waterproof effect, the protective cover can also play dustproof effect simultaneously for waterproof type external rotor electric machine end cover possesses good protecting effect, and waterproof type external rotor electric machine end cover's simple structure is convenient for popularize and use moreover.

Description

Waterproof type external rotor motor end cover

Technical Field

The utility model relates to an external rotor electric machine field, concretely relates to waterproof type external rotor electric machine end cover.

Background

The outer rotor fan belongs to equipment commonly used in the industries of ventilation, refrigeration, compression and the like, has the characteristics of compact structure, convenience in installation, reliability in operation, low noise, low energy consumption, high efficiency and the like, and is widely used at present.

The main component parts of the fan are provided with a motor, and the motor has higher protection level requirements. The existing outer rotor fan used outdoors needs waterproof and dustproof functions to protect the motor, and the motor can be damaged due to failure when the protection is not in place. The protection of the bearing and the stator is the most important, but the protection device adopted in the prior art is high in cost, complex in process, multiple in working procedures and complex in operation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in the existing motor, the structure of the protective device for the bearing and the stator is complex, so that the cost is high, and the wide application is not facilitated.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

the utility model provides a waterproof type external rotor electric machine end cover, the inside through-hole that is equipped with of waterproof type external rotor electric machine end cover, the up end of waterproof type external rotor electric machine end cover is equipped with the boss, the wherein one end of through-hole is equipped with the opening, the opening is located on the boss, fixedly connected with covers on the boss the open-ended protective cover, the protective cover with be connected with sealed glue between the boss.

Preferably, a plurality of water drainage grooves are formed in the upper end face of the waterproof outer rotor motor end cover.

Further, the drain tank includes at least: a first annular drain channel surrounding the opening; the second annular drainage groove surrounds the boss and is communicated with the outer edge of the waterproof outer rotor motor end cover; and the water diversion groove is communicated with the first annular water drainage groove and the second annular water drainage groove.

Preferably, the waterproof outer rotor motor end cover is provided with an inward-recessed drainage groove, the drainage groove is communicated with the drainage groove, and the drainage groove extends to the outer edge of the waterproof outer rotor motor end cover.

Further: and a threading hole is formed in the drainage groove.

Preferably, the upper end face of the boss is provided with an annular protrusion surrounding the opening, and the protective cover is mounted on the annular protrusion.

The advantage of above-mentioned scheme lies in, and the opening of through-hole is located the boss, and the boss is owing to outwards bulge for other positions, therefore the boss can play waterproof function, prevents that a large amount of water from staying on the up end of waterproof type external rotor motor end cover, has avoided the water logging to have submerged the condition of protective cover to take place. The protective cover can play dirt-proof function, and the sealed glue that sets up between protective cover and the boss can play the function that prevents remaining a small amount of water on the boss and get into the through-hole.

The structure of this scheme is very simple, and has played effectual water-proof effects. Moreover, due to the simple structure, the upper end face of the waterproof outer rotor motor end cover can be designed to be quite flat, and a nameplate, a wiring diagram, a warning mark and the like can be conveniently pasted.

Drawings

Fig. 1 is a schematic view of a preferred embodiment of a waterproof type end cover of an external rotor motor;

FIG. 2 is a top view of the embodiment;

FIG. 3 is a schematic view of FIG. 2 taken along line A-A;

fig. 4 is a partial view of portion B of fig. 3;

description of reference numerals: 1-boss, 10-through hole, 11-drainage groove, 110-first annular drainage groove, 111-water diversion groove, 112-second annular drainage groove, 12-drainage groove, 121-threading hole, 2-protective cover and 21-annular bulge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

Fig. 1 to 3 show a preferred embodiment of a waterproof outer rotor motor end cover, in this embodiment, a boss 1 is disposed on an upper end face of the waterproof outer rotor motor end cover, a through hole 10 is disposed inside the waterproof outer rotor motor end cover, as shown in fig. 3, the through hole 10 penetrates through upper and lower ends of the waterproof outer rotor motor end cover, an opening at the upper end is located on the boss 1, a protective cover 2 covering the opening is connected to the opening, and a sealant is connected between the protective cover 2 and the boss 1. The protective cover 2 plays dustproof and supplementary waterproof function, boss 1 can prevent that water from staying on the terminal surface to effectively provide waterproof and dustproof effect, the structure is very simple moreover.

Preferably, referring to fig. 1 and 2, a plurality of drainage grooves and at least one threading hole 121 are further formed on an upper end surface of the waterproof outer rotor motor end cover. The drainage channel can guide accumulated water to flow and discharge, plays a role in further preventing water retention, and contributes to enhancing the waterproof function of the waterproof outer rotor motor end cover. Specifically, the drainage channel includes a first annular drainage channel 110, a second annular drainage channel 112 and a water guiding channel 111, the first annular drainage channel 110 surrounds the protective cover 2, the second annular drainage channel 112 surrounds the boss 1, and the water guiding channel 111 communicates the first annular drainage channel 110 and the second annular drainage channel 112. The first annular water drainage groove 110 can guide a small amount of accumulated water on the boss 1 into the second annular water drainage groove 112 and finally flow out, while the second annular water drainage groove 112 can prevent water from overflowing the boss 1. Each wire connected with the outer rotor motor can pass through the threading hole 121, and after the wire passes through the threading hole 121, the sealing of the threading hole 121 can be completed only by arranging a circle of waterproof pad around the threading hole 121, so that the integral waterproof performance of the waterproof outer rotor motor end cover cannot be influenced.

In order to further improve the flow guiding effect of the drainage grooves, the drainage grooves 12 which are recessed inwards relative to the upper end faces of the waterproof outer rotor motor end covers are arranged on the waterproof outer rotor motor end covers, and the design is favorable for water flow to rapidly flow into the drainage grooves 12 from the second annular drainage grooves 112 so as to be drained. The drainage groove 12 extends to the outer edge of the waterproof outer rotor motor end cover, when the water flow is extremely large, water can directly flow out of the outer edge of the waterproof outer rotor motor end cover after flowing into the drainage groove 12, and the water can be prevented from overflowing the boss 1 when the water flow is large.

The mounting means of protective cover 2 is as shown in fig. 4, still encircle on the up end of boss 1 through-hole 10 is equipped with annular bulge 21, protective cover 2 install in on the annular bulge 21, the shape of annular bulge 21 just with protective cover 2 adaptation. The annular projection 21 can provide a location for the installation of the antiskid cover 2, while further preventing water in the first annular water drainage groove 110 from flowing into the through-hole 10 in the case where the first annular water drainage groove 110 is provided.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a waterproof type external rotor electric machine end cover, inside is equipped with through-hole (10), its characterized in that, the up end of waterproof type external rotor electric machine end cover is equipped with boss (1), wherein one end of through-hole is equipped with the opening, the opening is located on the boss, fixedly connected with covers on the boss open-ended protective cover (2), the protective cover with sealed glue is connected with between the boss.

2. The waterproof type end cover for an external rotor motor according to claim 1, wherein a plurality of drainage grooves are formed in an upper end surface of the waterproof type end cover for an external rotor motor.

3. The waterproof type end cover for an external rotor motor according to claim 2, wherein the drain groove includes at least:

a first annular drain channel (110) surrounding the opening;

a second annular drainage groove (112) which surrounds the boss and is communicated with the outer edge of the waterproof outer rotor motor end cover;

a water diversion groove (111) communicating the first annular water drainage groove and the second annular water drainage groove.

4. The waterproof type end cover for an external rotor motor according to claim 2, wherein the waterproof type end cover for an external rotor motor is provided with an inwardly recessed drain groove (12) communicating with the drain groove, and the drain groove extends to an outer edge of the waterproof type end cover for an external rotor motor.

5. The waterproof type end cover for the external rotor motor according to claim 4, wherein a threading hole (121) is formed in the drainage groove.

6. The waterproof type outer rotor motor end cover according to any one of claims 1 to 5, wherein an annular protrusion (21) is provided on an upper end surface of the boss around the opening, and the protective cover is mounted on the annular protrusion.