TWM587427U - Waterproof structure of fan - Google Patents

Abstract

A fan waterproof structure includes a frame body having a base and a side wall, and the base extends a plurality of first support members horizontally to the side wall; and a certain subgroup is disposed on the base and has an electric wire A waterproof adhesive layer is provided on the outside of the stator group. The waterproof adhesive layer horizontally extends a second support member connected to the side wall, and the electric wire is disposed in the second support member, thereby achieving a good waterproof effect.

Description

Fan waterproof structure

This creation is about a fan field, especially a fan waterproof structure.

The fan motor is often used in some harsh working environments, such as high humidity, dust environments, or harsh environments with salt spray. In this working environment, ordinary fans can easily cause damage to the stator part of the fan, making the fan unable to operate normally. jobs.

In this regard, there are currently fan structures that have been improved for such harsh environments. Please refer to Figure 1 for a schematic cross-sectional view of the waterproof structure of the conventional fan. The current practice is to encapsulate the entire stator group 9 through injection molding or encapsulation. A waterproof rubber layer 91 is generated, thereby isolating the stator group from the external environment.

However, the current approach has the following problems:

1. The waterproof rubber layer 91 covers the entire stator group 9, and the electric wires extend outward from the circuit board 94 in the stator group 9, and the main part of the electric wires is exposed outside the waterproof rubber layer, that is, the electric wires only have a small section. It is easy for the waterproof rubber layer 91 to rupture the waterproof rubber layer 91 due to the pulling process of the wires during actual use, and then let moisture invade the stator group 9 and cause damage.

2. The main part of the electric wire of the stator group 9 is set on one of the ribs or the stationary leaves. A semi-open receiving groove 97 is made on the rib or the stationary leaves. The main part of the electric wires needs to pass through the opening 96 of the base. And placed in the accommodating groove 97, the electric wires are limited by the structure of the ribs 93 (or static leaves) of the original base 92, which may easily cause the electric wires to be pulled excessively and cause the 95 of the waterproof glue layer 91 to be damaged Or, the electric wire is pulled too much to break the wire body.

Therefore, how to solve the above-mentioned problems and shortcomings, that is, the creators of this case and the relevant manufacturers engaged in this industry are eager to study the improvement direction.

In order to improve the above problems, the present invention provides a fan waterproof structure with good waterproof effect.

Another object of this creation is to provide a fan waterproof structure that effectively reduces line breaks.

In order to achieve the above purpose, the present invention provides a fan waterproof structure, which includes a frame body having a base and a side wall, and the base extends a plurality of first supporting members horizontally to the side wall; The base is provided with an electric wire, and a waterproof rubber layer is provided on the outside of the stator group. The waterproof glue layer horizontally extends a second support member connected to the side wall, and the electric wire is disposed in the second support member.

Through the above structure, the first support member and the second support member form a complete rib structure or a stationary leaf structure, and the electric wire is completely covered in the second support member, thereby achieving a good waterproof effect and avoiding assembly The line is pulled too much.

1‧‧‧frame

11‧‧‧ base

111‧‧‧ shaft cylinder

12‧‧‧ sidewall

13‧‧‧first support

2‧‧‧ stator set

21‧‧‧ Electric wires

22‧‧‧ Iron Core

23‧‧‧coil

3‧‧‧Waterproof adhesive layer

31‧‧‧Second support

311‧‧‧ the first end

312‧‧‧second end

4‧‧‧rotor set

41‧‧‧ Wheel

42‧‧‧ Blade

RC‧‧‧Reservation combination area

Figure 1 is an exploded schematic diagram of the waterproof structure of a conventional fan; Figure 2A is an exploded schematic diagram of the waterproof structure of the creative fan; Figure 2B is a combined schematic diagram of the waterproof structure of the creative fan; and Figure 3A is a schematic top view of the creative frame Figure 3B is a schematic top view of the stator group of the creation; Figure 4 is an exploded view of the fan using the waterproof structure of the creation.

The above-mentioned purpose of this creation and its structural and functional characteristics will be explained according to the preferred embodiments of the drawings.

Please refer to Figures 2A, 2B, 3A, and 3B, which are exploded schematic diagrams, combined schematic diagrams, top schematic diagrams of the creative frame, and top schematic diagrams of the stator set of the creative. The waterproof structure is mainly changed on the frame body 1, the stator group 2 and the waterproof rubber layer 3 to improve the waterproof effect of the electric wire 21 near the stator group 2 and reduce the problem of line breakage due to the drawing process.

The frame body 1 includes a base 11 and a side wall 12. The base 11 extends a plurality of first supporting members 13 horizontally and is connected to the side wall 12. A shaft cylinder 111 is hung at the center of the base 11, and two sets of stator sets are provided. Assuming that the shaft cylinder 111 is external, the first support member 13 may be any of a rib or a stationary blade.

The stator group 2 has an electric wire 21, an iron core 22, and a coil 23. The iron core 22 is, for example, but not limited to, stacked by a plurality of silicon steel sheets. The coil 23 is diffracted on the iron core 22, and the electric wire 21 It is connected to this coil 23.

The waterproof rubber layer 3 is disposed on the stator group 2 and covers the electric wires 21, the iron core 22 and the coil 23. The waterproof rubber layer 3 extends a horizontally supporting a second support member 31 and the side wall 12, the electrical The conductive wire 21 is disposed in the second support member 31. The waterproof adhesive layer 3 is made through one of a potting process or a low-pressure injection integrated coating process. The second support member 31 may be a rib or a stationary leaf. Either.

The second support member 31 has a first end 311 and a second end 312. The first end 311 is connected to the waterproof rubber layer 3, and the second end 312 is connected to the side wall 12.

Please refer to FIG. 3A and FIG. 3B. In FIG. 3A, it can be clearly seen that the first support members 13 of the frame 1 are not arranged at equal intervals, and have a large opening on the right side, which is defined as a reservation combination here. Zone RC. In Figure 3B, you can see that the second support 31 on the waterproof rubber layer 3 corresponds to the above-mentioned opening. When the stator group 2 is set on the shaft cylinder 111, the second support 31 will be located in the reservation. In the combination area RC, the first support members 13 and the second support members 31 will form a complete rib. Although the number of the first support member 13 is three in this embodiment, the number of the first support members 13 is not limited in practice, and the number can be changed according to the actual design and use.

For the sake of convenience or structural strength considerations, the above-mentioned second support member 31 and the waterproof rubber layer 3 may be made of the same material or different materials. In consideration of the overall structural strength or production considerations, the first support member 13 and The second supporting member 31 can be made of the same or different materials. The above materials are, for example, but not limited to, polypropylene (Polypropylene PP), ABS resin, polybutylene terephthalate PBT, or other suitable materials. When using different materials, due to the different material characteristics, the vibration frequencies generated by each other are completely different, so resonance and noise can be greatly reduced.

In short, this creation greatly increases the distance between the outlet of the electrical conductor 21 and the inside of the stator group 2, thereby enhancing the waterproofness and improving the problem that the conventional structure is easy to break and cause waterproof failure. In addition, the structure of this creation is also at the same time The situation that the electrical lead 21 is excessively bent and routed during assembly is improved, and the problem of preventing the electrical lead 21 from being broken is achieved.

Please refer to Figure 4. For the exploded schematic diagram of the fan used in this creation, please refer to Figures 2A, 2B, 3A, and 3B. The stator group 2 is first combined with the frame body 1, and the rotor The group 4 is inserted in the stator group 2. The rotor group 4 has an axis (not shown), a hub 41, and a plurality of blades 42 disposed on the hub 41. When the stator group 2 is energized, the rotor group 4 is driven When the blades 42 rotate, the fluid flows through the blades 42.

In summary, this creation has the following advantages: 1. Good waterproof effect; 2. Reducing the problem of the line breaking due to pulling; 3. Reducing the problem of cracking of the waterproof adhesive layer; 4. Reduce resonance and noise.

The creation has been described in detail above, but the above is only a preferred embodiment of the creation, and the scope of implementation of the creation cannot be limited. That is to say, all equal changes and modifications made in accordance with the scope of this creative application shall still be covered by the patent of this creative.

Claims (9)

A fan waterproof structure includes: a frame body having a base and a side wall, the base extending a plurality of first supporting members horizontally and connected to the side wall; and a certain sub-group, which is arranged on the base and has an electric A conductive rubber layer is provided on the outside of the stator group. The waterproof rubber layer extends a second supporting member horizontally and is connected to the side wall. The electric conducting wire is disposed in the second supporting member. The fan waterproof structure according to item 1 of the scope of the patent application, wherein a shaft cylinder is hung at the center of the base, and the stator is sleeved outside the shaft cylinder. The fan waterproof structure according to item 1 of the scope of patent application, wherein the first support member may be any of a rib or a stationary leaf. The fan waterproof structure according to item 1 of the scope of patent application, wherein the second support member may be any of a rib or a stationary leaf. The fan waterproof structure according to item 1 of the scope of patent application, wherein the first support member and the second support member constitute a complete rib structure or a stationary leaf structure. The fan waterproof structure according to item 1 of the patent application scope, wherein the waterproof glue layer is made by one of a glue filling process or a low-pressure injection integrated coating process. The fan waterproof structure according to item 1 of the scope of the patent application, wherein the first support member and the second support member may be the same or different materials. The fan waterproof structure according to item 1 of the scope of the patent application, wherein the second support member and the waterproof rubber layer may be the same or different materials. The fan waterproof structure according to item 1 of the patent application scope, wherein the second support member has a first end and a second end, the first end is connected to the waterproof rubber layer, and the second end is connected to the side wall .