A waterproof fan box

By sealing the motor wiring harness with sealed bearings and sealing rings, and adjusting the installation distance with limit and support components, the problem of motor wiring harness corrosion is solved, and the waterproof effect of the fan box and the working efficiency of the motor are improved.

CN224352132UActive Publication Date: 2026-06-12ZHEJIANG GUANZHOU ELECTRIC APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GUANZHOU ELECTRIC APPLIANCE CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing cooling fan motor wiring harness is susceptible to water corrosion, which can lead to motor rust, affecting working efficiency and noise. In addition, the fan box has poor waterproof performance.

Method used

The motor shaft is fixed with sealed bearings and sealant, and the motor wiring harness is sealed with multiple sealing rings to form a side-enclosed structure. The installation distance of the fan box is adjusted with limit and support components to improve the waterproof effect.

🎯Benefits of technology

It effectively prevents moisture from entering the motor, reduces corrosion, maintains motor efficiency, improves the waterproof performance of the fan box, and reduces noise.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224352132U_ABST
    Figure CN224352132U_ABST
Patent Text Reader

Abstract

The utility model relates to fan box technical field, concretely is a waterproof fan box, including the air cylinder, both ends surfaces of air cylinder are fixed with the connecting plate, multiple connection components are equiangularly arranged between two connecting plates, and waterproof assembly is arranged in the air cylinder, waterproof assembly includes the installation storehouse, the outside surface upper end department of installation storehouse is equiangularly fixed and inserts and is equipped with multiple no.
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Description

Technical Field

[0001] This utility model relates to the field of fan box technology, specifically a waterproof fan box. Background Technology

[0002] Cooling fans are a type of fan widely used in traditional or modern instruments and equipment such as computers, communication products, optoelectronic products, consumer electronics, and automotive electronic equipment to dissipate heat from electronic components. Cooling fans typically consist of a central fan blade, a motor, and an outer fan housing.

[0003] When installing existing cooling fans, the motor wiring harness usually passes directly through the wiring holes on the surface of the fan housing. When water is sprayed on the surface of the fan housing, water can easily enter the motor through the wiring holes, corroding the metal components of the motor and affecting the motor's working efficiency. Furthermore, when the motor shaft corrodes, the friction increases, affecting the fan speed and producing a harsh noise. The fan housing also has poor waterproofing performance. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof fan box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof fan box, comprising:

[0007] An air-gathering cylinder, wherein connecting plates are fixedly installed on both ends of the air-gathering cylinder;

[0008] Multiple connecting components are arranged at equal angles between the two connecting plates;

[0009] A waterproof component is installed inside the air-gathering cylinder. The waterproof component includes an installation chamber. Multiple No. 1 conduits are fixedly embedded at the upper end of the outer surface of the installation chamber at equal angles. A cover plate is movably provided at the upper end of the installation chamber. Multiple No. 2 conduits are fixedly embedded at the lower end of the outer surface of the cover plate at equal angles.

[0010] Furthermore, multiple limiting protrusions are fixedly installed at equal angles on the upper end of the inner surface of the gas-gathering cylinder.

[0011] Furthermore, the first conduit passes through the gas-gathering cylinder and is fixedly connected to the gas-gathering cylinder, and a sealed bearing is fixedly embedded in the lower end of the installation chamber.

[0012] Furthermore, the lower surface of the first conduit is symmetrically provided with slots, the lower surface of the second conduit is symmetrically fixed with a first insert plate, the first insert plate is movably inserted into the slot at the corresponding position, and multiple sealing rings are fixedly provided at equal intervals between the first conduit and the second conduit.

[0013] Furthermore, multiple arc-shaped inserts are fixedly installed at equal intervals at the upper end of the installation compartment, and the multiple arc-shaped inserts are movably connected to the cover plate.

[0014] Furthermore, the connection component includes:

[0015] A fixed cylinder is fixedly connected to the corner of two connecting plates and penetrates through the connecting plates;

[0016] The support cylinder is slidably connected inside the fixed cylinder;

[0017] The limiting rod is fixedly installed on the upper part of the outer surface of the support cylinder.

[0018] Preferably, the outer surface of the fixed cylinder is provided with a sliding groove, and the outer surface of the fixed cylinder is provided with multiple limiting grooves at equal intervals on one side of the sliding groove. The limiting rod passes through the sliding groove and the limiting groove and is slidably connected with the sliding groove and the limiting groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By passing the motor shaft through the inner ring of the sealed bearing and fixing it with sealant, the sealing performance at the connection between the motor shaft and the mounting chamber is improved, enhancing the waterproof effect. The motor wiring harness is passed through multiple sealing rings, which are then secured inside the No. 2 conduit. The connection between the No. 1 and No. 2 conduits is strengthened through the insertion of the No. 1 insert plate and slot, increasing the contact area and sealing effect at the connection. This creates a side-closed structure through the No. 1 and No. 2 conduits, which, together with the multiple sealing rings, provide multi-segment sealing to the outside of the wiring harness, improving the motor's sealing performance, preventing water from entering the motor along the wiring harness, reducing moisture corrosion, maintaining motor efficiency, and improving the waterproof effect of the fan box.

[0021] 2. When installing the fan box, slide the limit rod to make it slide inside the slide groove, adjust the outer extension distance of the support cylinder, and then lock the limit rod inside the limit groove to fix the support cylinder. The screw passes through the support cylinder inside the fixing cylinder and engages with the mounting hole to fix the fan box and control the installation distance between the fan box and the electronic components. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram showing the disassembled structure of the air-gathering cylinder and waterproof component in this utility model;

[0024] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the air-gathering cylinder and waterproof component in this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the connecting component in this utility model;

[0026] Figure 5 This is a schematic cross-sectional view of the connection between conduit No. 1 and conduit No. 2 in this utility model.

[0027] In the diagram: 1. Air-gathering cylinder; 101. Connecting plate; 102. Limiting protrusion; 2. Connecting assembly; 201. Fixing cylinder; 202. Slide groove; 203. Limiting groove; 204. Support cylinder; 205. Limiting rod; 3. Waterproof assembly; 301. Installation chamber; 302. No. 1 conduit; 303. Cover plate; 304. No. 2 conduit; 305. Sealing ring; 306. No. 1 insert plate; 307. Slot; 308. Arc-shaped insert plate; 309. Sealed bearing. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 In this embodiment of the utility model, a waterproof fan box includes an air-gathering cylinder 1. Connecting plates 101 are fixedly installed on both ends of the air-gathering cylinder 1. Multiple connecting components 2 are arranged at equal angles between the two connecting plates 101. A waterproof component 3 is disposed inside the air-gathering cylinder 1. The waterproof component 3 includes an installation chamber 301. Multiple No. 1 conduits 302 are fixedly embedded at equal angles at the upper end of the outer surface of the installation chamber 301. A cover plate 303 is movably provided at the upper end of the installation chamber 301. Multiple No. 2 conduits 304 are fixedly embedded at equal angles at the lower end of the outer surface of the cover plate 303.

[0030] Specifically, multiple connecting components 2 are used to fix the fan box and enable the fan box to be fixed at different distances from the electronic components. The waterproof component 3 is used to install the motor that drives the fan blades to rotate, and at the same time, the motor and motor wiring harness are sealed to prevent water from contacting the motor and improve the waterproof effect.

[0031] Example 1

[0032] like Figure 1-3As shown, in this embodiment, multiple limiting protrusions 102 are fixedly installed at equal angles on the upper end of the inner surface of the gas-gathering cylinder 1. After the second conduit 304 and the first conduit 302 are inserted into place, the limiting protrusions 102 abut against one end of the second conduit 304 to limit and fix it, thereby improving its stability. The first conduit 302 passes through the gas-gathering cylinder 1 and is fixedly connected to the gas-gathering cylinder 1. A sealed bearing 309 is fixedly embedded in the lower end of the installation chamber 301.

[0033] In this embodiment, when installing the motor and fan blades, the motor shaft passes through the inner ring of the sealed bearing 309 and is fixed with sealant to improve the sealing performance at the connection between the motor shaft and the mounting chamber 301 and enhance the waterproof effect.

[0034] like Figure 3 and Figure 5 As shown, in this embodiment, slots 307 are symmetrically provided on the lower surface of the first conduit 302, and a first insert plate 306 is symmetrically fixedly installed on the lower surface of the second conduit 304. The first insert plate 306 is movably inserted into the slot 307 at the corresponding position. Multiple sealing rings 305 are fixedly provided at equal intervals between the first conduit 302 and the second conduit 304. Multiple arc-shaped insert plates 308 are fixedly installed at equal intervals at the upper end of the installation chamber 301. The multiple arc-shaped insert plates 308 are movably inserted into the cover plate 303.

[0035] In practical implementation, when arranging the motor wiring harness, the harness is first passed through multiple sealing rings 305, so that the sealing rings 305 are locked inside the second conduit 304. Then, through the movable insertion of the first insert plate 306 and the slot 307, the connection between the first conduit 302 and the second conduit 304 is strengthened, and the contact area between the two is increased, thus enhancing the sealing effect at the connection. This forms a side-closed structure through the first conduit 302 and the second conduit 304. Multiple sealing rings 305 are set between the first conduit 302 and the second conduit 304 and the wiring harness, providing multi-segment sealing to the outside of the wiring harness, improving the sealing performance of the motor, preventing water from entering the motor along the wiring harness, reducing moisture corrosion of the motor, maintaining the motor's working efficiency, and improving the waterproof effect of the fan box.

[0036] Example 2

[0037] Based on Embodiment 1, in order to compensate for the problem that the fan box is not easy to adjust the installation distance between it and electronic components.

[0038] like Figure 1 and Figure 4As shown, in this embodiment, the connecting component 2 includes: a fixed cylinder 201 fixedly connected to the corner of two connecting plates 101 and penetrating the connecting plates 101; a support cylinder 204 slidably connected inside the fixed cylinder 201; and a limiting rod 205 fixedly installed at the upper end of the outer surface of the support cylinder 204. A sliding groove 202 is provided on the outer surface of the fixed cylinder 201, and multiple limiting grooves 203 are equidistantly provided on one side of the sliding groove 202 on the outer surface of the fixed cylinder 201. The limiting rod 205 penetrates the sliding groove 202 and the limiting grooves 203 and is slidably connected to the sliding groove 202 and the limiting grooves 203.

[0039] In practice, when installing the fan box, if it is necessary to control the distance between the fan box and the electronic components, slide the limiting rod 205 so that it slides inside the slide groove 202, adjust the outer extension distance of the support cylinder 204, and then rotate the limiting rod 205 in the tightening direction of the screw so that the limiting rod 205 is locked inside the limiting groove 203, fixing the support cylinder 204. The screw passes through the support cylinder 204 inside the fixing cylinder 201 and engages with the mounting hole to fix the fan box, so that the support cylinder 204 supports the fan box.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof fan box, characterized in that, include: A gas-gathering cylinder (1) is provided with connecting plates (101) fixedly installed on both ends of the gas-gathering cylinder (1). Multiple connecting components (2) are arranged at equal angles between two connecting plates (101); A waterproof component (3) is installed inside the air-gathering cylinder (1). The waterproof component (3) includes an installation chamber (301). Multiple No. 1 conduits (302) are fixedly embedded at the upper end of the outer surface of the installation chamber (301) at equal angles. A cover plate (303) is movably provided at the upper end of the installation chamber (301). Multiple No. 2 conduits (304) are fixedly embedded at the lower end of the outer surface of the cover plate (303) at equal angles.

2. The waterproof fan box according to claim 1, characterized in that, Multiple limiting protrusions (102) are fixedly installed at equal angles on the upper end of the inner surface of the gas-gathering cylinder (1).

3. The waterproof fan box according to claim 1, characterized in that, The first conduit (302) passes through the gas-gathering cylinder (1) and is fixedly connected to the gas-gathering cylinder (1). A sealed bearing (309) is fixedly embedded in the lower end of the installation chamber (301).

4. The waterproof fan box according to claim 1, characterized in that, The lower surface of the first conduit (302) is symmetrically provided with slots (307), and the lower surface of the second conduit (304) is symmetrically fixed with a first insert plate (306). The first insert plate (306) is movably inserted into the slot (307) at the corresponding position. Multiple sealing rings (305) are fixedly provided at equal intervals between the first conduit (302) and the second conduit (304).

5. The waterproof fan box according to claim 1, characterized in that, Multiple arc-shaped inserts (308) are fixedly installed at equal intervals at the upper end of the installation compartment (301), and the multiple arc-shaped inserts (308) are movably connected to the cover plate (303).

6. The waterproof fan box according to claim 1, characterized in that, The connection component (2) includes: The fixed cylinder (201) is fixedly connected to the corner of the two connecting plates (101) and passes through the connecting plates (101). The support cylinder (204) is slidably connected inside the fixed cylinder (201); The limiting rod (205) is fixedly installed on the upper end of the outer surface of the support cylinder (204).

7. The waterproof fan box according to claim 6, characterized in that, The outer surface of the fixed cylinder (201) is provided with a sliding groove (202), and a plurality of limiting grooves (203) are provided at equal intervals on one side of the sliding groove (202) on the outer surface of the fixed cylinder (201). The limiting rod (205) passes through the sliding groove (202) and the limiting groove (203) and is slidably connected to the sliding groove (202) and the limiting groove (203).