Waterproof structure at knob of electronic equipment
By setting an anti-inlet structure with an inner water barrier ring, an outer water barrier ring and a joint at the knob of the electronic device, the problems of high cost and inconvenient assembly of the knob in the prior art are solved, and better waterproof performance and safety are achieved.
Patent Information
- Application Number
- CN202421213211.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The waterproof structure of the knob of existing electronic equipment is high and inconvenient to assemble, and occasionally water inflow occurs when using the water barrier.
A water inlet structure is adopted that includes a casing, a rotor and a knob. An inner water barrier ring and an outer water barrier ring are provided on the outer surface of the casing. There is a gap between the two, and a water outlet is set at the bottom of the outer water barrier ring.
Improves waterproof performance at the knob, avoids water entering through the through holes, ensures safety of electronic devices, while reducing costs and simplifying assembly processes.
Smart Images
Figure CN222562523U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic equipment, in particular to a water ingress prevention structure for a knob of an electronic equipment. Background Art
[0002] Electronic devices usually need to be waterproof, and knobs are a common operating method in electronic devices. Currently, there are generally two types of waterproof knob structures: one is to seal with a sealing ring, and the other is to waterproof with a water retaining ring. The sealing ring is usually expensive and inconvenient to assemble; and when using a water retaining ring, water still occasionally enters. Utility Model Content
[0003] The utility model aims to provide a water ingress prevention structure for a knob of an electronic device which has low cost, simple assembly and good waterproof performance.
[0004] The utility model provides a water-proof structure for a knob of an electronic device, comprising a housing, a rotary rod and a knob; the housing is provided with a through hole, the rotary rod is located at a position corresponding to the through hole, and the knob covers the surface of the through hole and is fixed to the knob;
[0005] The outer surface of the housing is upwardly protruded with an inner water retaining ring and an outer water retaining ring arranged around the through hole, and a gap is provided between the inner water retaining ring and the outer water retaining ring;
[0006] The outer water retaining ring is provided with a water outlet.
[0007] Furthermore, the casing includes an inclined surface, and the through hole is arranged on the inclined surface; the water outlet is located at the lowermost end of the outer water retaining ring.
[0008] Furthermore, the inner water retaining ring and the outer water retaining ring are concentrically arranged.
[0009] Furthermore, the outer side of the knob extends along the outer water retaining ring to the surface of the casing.
[0010] Furthermore, there is a gap between the inner water retaining ring and the outer water retaining ring with a width of 0.5-5 mm.
[0011] The beneficial effect of the utility model is: improving the waterproof performance. Research has found that when a single-layer water retaining ring is used, if there is water at the knob, the water often enters the gap between the knob and the water retaining ring due to the tension of the water and cannot flow away. When the knob is rotated, the water can flow through the upper edge of the water retaining ring due to the action of centrifugal force or extrusion, and then a small amount of water enters, which affects the safety of the electrical appliance. When the structure of the utility model is used, if water flows through the upper edge of the outer water retaining ring, due to the tension of the water, the water flowing through the outer water retaining ring will enter the gap. When the water in the gap accumulates more and can overcome the tension, it will flow from the water outlet, avoiding water from entering from the through hole. And if the gap width is less than 0.5mm, the water flowing through the upper edge of the outer water retaining ring is easy to cross the gap, and the gap is more likely to be full of water; if the gap width is greater than 5mm, it is more difficult to utilize the tension of the water. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram of the utility model.
[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION
[0014] The present invention is further described below in conjunction with the implementation modes.
[0015] like Figure 1 and Figure 2 As shown, this embodiment discloses a water-proof structure for a knob of an electronic device, comprising a housing 1, a rotary rod 2 and a knob 3; the housing 1 is provided with a through hole, the rotary rod 2 is located at a position corresponding to the through hole, and the knob 3 covers the surface of the through hole and is fixed to the knob 3;
[0016] The outer surface of the housing 1 protrudes upwards to have an inner water retaining ring 4 and an outer water retaining ring 5 arranged around the through hole, and there is a gap between the inner water retaining ring 4 and the outer water retaining ring 5;
[0017] The outer water retaining ring 5 is provided with a water outlet 50 .
[0018] Furthermore, the housing 1 includes an inclined surface, and the through hole is arranged on the inclined surface; the water outlet 50 is located at the lowermost end of the outer water retaining ring 5.
[0019] Furthermore, the inner water retaining ring 4 and the outer water retaining ring 5 are concentrically arranged.
[0020] Furthermore, the outer side of the knob 3 extends along the outer water retaining ring 5 to the surface of the housing 1 .
[0021] Furthermore, there is a gap between the inner water retaining ring 4 and the outer water retaining ring 5 with a width of 0.5-5 mm.
[0022] The beneficial effect of the utility model is: improving the waterproof performance. Research has found that when a single-layer water retaining ring is used, if there is water at the knob, the water often enters the gap between the knob and the water retaining ring due to the tension of the water and cannot flow away. When the knob is rotated, the water can flow through the upper edge of the water retaining ring due to the action of centrifugal force or extrusion, and then a small amount of water enters, which affects the safety of the electrical appliance. When the structure of the utility model is used, if water flows through the upper edge of the outer water retaining ring 5, due to the tension of the water, the water flowing through the outer water retaining ring will enter the gap. When the water in the gap accumulates more and can overcome the tension, it will flow from the water outlet, avoiding water from entering from the through hole. And if the gap width is less than 0.5mm, the water flowing through the upper edge of the outer water retaining ring 5 is easy to cross the gap, and the gap is more likely to be full of water; if the gap width is greater than 5mm, it is more difficult to use the tension of the water.
Claims
1. A water-proof structure for a knob of an electronic device, comprising a housing (1), a rotary rod (2) and a knob (3); the housing (1) is provided with a through hole, the rotary rod (2) is located at a position corresponding to the through hole, and the knob (3) covers the surface of the through hole and is fixed to the knob (3); characterized in that: The outer surface of the housing (1) protrudes upwards and has an inner water retaining ring (4) and an outer water retaining ring (5) arranged around the through hole, and a gap exists between the inner water retaining ring (4) and the outer water retaining ring (5); The outer water retaining ring (5) is provided with a water outlet (50).
2. The water-proof structure for a knob of an electronic device according to claim 1, characterized in that: The casing (1) comprises an inclined surface, and the through hole is arranged on the inclined surface; the water outlet (50) is located at the lowermost end of the outer water retaining ring (5).
3. The water-proof structure for a knob of an electronic device according to claim 1, characterized in that: The inner water retaining ring (4) and the outer water retaining ring (5) are arranged concentrically.
4. The water-proof structure for a knob of an electronic device according to claim 1, characterized in that: The outer side of the knob (3) extends along the outer water retaining ring (5) to the surface of the casing (1).
5. The water-proof structure for a knob of an electronic device according to claim 1, characterized in that: There is a gap between the inner water retaining ring (4) and the outer water retaining ring (5) with a width of 0.5-5 mm.