A kind of packaging method of armored heater
A technology of armored heater and packaging method, which is applied in the direction of heating element shape, heating element material, etc., and can solve the problem of small outer diameter heating wire diameter of armored heater, difficulty in dialing heating wire and packaging port, poor insulation performance, etc. problems, to achieve the effect of high pass rate, high reliability, and guaranteed sealing
Active Publication Date: 2019-03-19
WUHAN AVIATION INSTR
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Problems solved by technology
When the armored heater is assembled on the product, high-frequency welding is required, and the temperature is about 700°C. The original package will be destroyed, resulting in poor insulation performance. The outer diameter of the heater and the diameter of the heating wire are small, it is difficult to dial the heating wire and the packaging port, and the qualified rate is low
Method used
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Embodiment Construction
[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] Step 1: Weld the welding base 4 and the shell of the armored heater 1. The welding method is silver brazing. The armored heater needs to be fixed during welding to prevent the heating wire 3 from breaking;
[0024] Step 2, peel off the armored heater according to the size requirements, and expose the heating wire 3 . Due to the special size and structure of the heater, the heater must be peeled off slowly and carefully to prevent the heater from being peeled off. Strip the heating wire 3 according to the size requirements, and lead out the heating wire 3 through subsequent operations, which is convenient for later power-on heating;
[0025] Step 3, welding the lead-out welding pin 5 of the heater with the heating wire 3 stripped out in the second step, the welding method is silver brazing, the purpose of this operation is to reduce the contact resista...
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The invention relates to a method for packaging an armoured heater. The method adopts an armoured heater housing (1), an insulation material (2), a heating wire (3), a welded pedestal (4), a heater welded lining (5), a ceramic insulation liner (6), a heater lead out welded needle (7) and a welded lining (8) in fixing the armoured heater and in leading out the heating wire. The packaging adopts welding and an insulation glue in filling. The method guarantees contact reliability and reduces contact resistance. The welded pedestal (4) and the heater housing (1) are welded through silver soldering, which guarantees sealing between the welded pedestal (4) and the heater housing (1). The method enables high reliability, excellent insulation and high qualification of the armoured heater after the packaging.
Description
technical field [0001] The invention belongs to the technical field of anti-icing and relates to a packaging method of an armored heater for an ice detection detector. Background technique [0002] Aircraft anti-icing technology is crucial to flight safety. Icing detectors are mainly used to detect icing environments during aircraft flight. In order to detect icing environments repeatedly, heaters are installed at the working ends of the icing detectors. The tip is heated to de-ice so that the ice detector can detect ice again. [0003] The structure of the armored heater used in the ice detector is as follows: figure 1 As shown, the outer diameter Φ2 is Φ1.2±0.05mm, and the heating wire diameter Φ1 is 0.5mm. When the armored heater is assembled on the product, high-frequency welding is required, and the temperature is about 700°C. The original package will be destroyed, resulting in poor insulation performance. The outer diameter of the heater and the diameter of the hea...
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IPC IPC(8): H05B3/48H05B3/10
CPCH05B3/10H05B3/48
Inventor 荆娟莉王学锋郭玉东
Owner WUHAN AVIATION INSTR