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Pressure relief structure

A technology of pressure relief structure and pressure relief hole, which is applied in cooking utensils, household utensils, applications, etc., can solve problems such as danger and poor thermal insulation performance, and achieve the effect of protecting the safety of use

Active Publication Date: 2012-10-10
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention has to solve two technical problems. The first is the problem of poor thermal insulation performance because the exhaust channel is always connected with the outside atmosphere; the second is that only one exhaust channel is provided. Exhaust causing dangerous problems

Method used

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Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1-3 As shown, a pressure relief structure includes a pot cover structure 10 and a cavity 60, the pot cover structure 10 is provided with a water outlet 11, the pot cover structure 10 is buckled above the cavity 60, and the pot cover structure 10 is provided with a The water outlet valve structure 20 that opens and closes the connection channel between the water outlet 11 and the cavity 60. The first pressure relief hole 50 for discharging steam is provided in the lid structure 10. The first pressure relief hole 50 is provided with elastic Cover sheet, when the elastic cover sheet is lifted by the high-pressure steam in the cavity 60, a gap is formed between the first pressure relief hole 50 and the elastic cover sheet, and the gap can communicate with the cavity 60 When the air pressure in the cavity 60 is too low to lift the elastic covering sheet, the first pressure relief hole 50 is covered, and the cavity 60 cannot communicate with the external a...

Embodiment 2

[0035] Such as Figure 4 As shown, the lid structure 10 is provided with a plane 12, the upper surface of the plane 12 communicates with the outside atmosphere through the connection gap between the lid structure 10 and the water outlet valve structure 20, and the first pressure relief hole 50 is set On the plane 12, the plane 12 is a boss structure, the inlet port of the first pressure relief hole 50 communicates with the cavity 60, and the air outlet port of the first pressure relief hole 50 passes through the passage of the second sealing ring. The hole 71 communicates with the outside atmosphere through the connection gap between the pot cover structure 10 and the water outlet valve structure 20; the second sealing ring 70 is sleeved on the plane 12, and the upper annular plane 72 of the second sealing ring Cover the first pressure relief hole 50 . Other undescribed parts are the same as the first embodiment.

[0036] The working principle of this embodiment is: the firs...

Embodiment 3

[0038] Such as Figure 5 , 6 As shown, the elastic covering sheet is provided with a clamping portion 91 and a covering portion 92, the lid structure 10 is provided with a plane 12, the first pressure relief hole 50 is provided on the plane 12, and the first pressure relief hole 50 is provided on the plane 12. Next to the press hole 50, a snap hole 14 is provided corresponding to the clip part 91, and the clip part 91 passes through the clip hole 14 to clip and fix with the clip hole 14, and the cover part 92 covers the first pressure relief hole 50, and other parts not described are the same as the second embodiment.

[0039] The working principle of this embodiment is: when the steam pressure in the cavity 60 pushes up the covering portion 92 of the elastic covering sheet, a gap is formed between the covering portion 92 of the elastic covering sheet and the first pressure relief hole 50, and the cavity 60 The steam is directly discharged from the gap, and finally directed ...

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Abstract

The invention relates to the field of heating of small household electrical appliances and specifically relates to a pressure relief structure. The pressure relief structure comprises a kettle lid structure and a cavity, wherein a water outlet is arranged on the kettle lid structure, the kettle lid structure is buckled above the cavity, and a water outlet valve structure for opening and closing a connecting channel between the water outlet and the cavity is arranged in the kettle lid structure. The pressure relief structure is characterized in that a first pressure relief hole for exhausting steam is formed in the kettle lid structure, and an elastic covering piece is arranged on the first pressure relief hole; when the elastic covering piece is jacked up by high-pressure steam in the cavity, a gap is formed between the first pressure relief hole and the elastic covering piece, and the gap can communicate the cavity with the outer atmosphere; and when air pressure in the cavity is lower and can not jack up the elastic covering piece, the first pressure relief hole is covered, and the cavity can not be communicated with the outer atmosphere through the first pressure relief hole. The pressure relief structure has the advantages of simplicity, safety, reliability and double protection in use of a user.

Description

technical field [0001] The invention relates to the field of heating of small household appliances, in particular to a pressure relief structure of an electric kettle. Background technique [0002] In the existing thermal insulation electric kettle, the lid is generally provided with a water outlet channel and an exhaust channel. The water outlet channel is provided with a water outlet valve structure to open or seal the water outlet channel. The exhaust channel is used to discharge steam. An anti-dumping and overflowing structure is provided to prevent the hot water in the cavity from quickly overflowing or spraying out from the exhaust channel when the pot body is tipped over, so as to avoid the risk of scalding the user. However, there are two problems: one is that the exhaust ducts are generally kept in communication with the outside atmosphere, so the heat preservation effect will be relatively poor; the other is that only one exhaust channel is provided, and an anti-du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47J36/38
Inventor 陈前谭发刚罗刚万文锋刘焕洲
Owner MIDEA GRP CO LTD
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