CN105979619A - Metal electric heating pipe end seal structure applied to air conditioner - Google Patents
Metal electric heating pipe end seal structure applied to air conditioner Download PDFInfo
- Publication number
- CN105979619A CN105979619A CN201610152846.6A CN201610152846A CN105979619A CN 105979619 A CN105979619 A CN 105979619A CN 201610152846 A CN201610152846 A CN 201610152846A CN 105979619 A CN105979619 A CN 105979619A
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- CN
- China
- Prior art keywords
- electric heating
- metal
- silica gel
- air conditioner
- end seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
- H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
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- Resistance Heating (AREA)
Abstract
The invention discloses a metal electric heating pipe end seal structure applied to an air conditioner. The structure comprises a metal pipe, an alloy electric heating wire located inside the metal pipe and left and right silicon rubber electric wires located on both ends of the metal pipe. Both ends of the alloy electric heating wire are respectively fixedly connected with left and right lead rods. The outer ends of left and right lead rods and the inner ends of left and right silicon rubber electric wires are correspondingly connected in a brazing manner to form connection points. Left and right silicon rubber electric wires are sleeved by silica gel fiber casings. According to the invention, according to the actual use requirement of the special vehicle air conditioner, the manner of metal pipe end sealing and the manners of connection and wiring outgoing of the high temperature resistant silicone rubber electric wires are improved; the structure has the advantages of simple process, small operation difficulty, easy manufacture, low failure rate and being safe and reliable, and solves the problem of reduced air conditioner insulation performance, which is caused by cracked metal electric heating pipe end seal silica gel applied to the special vehicle air conditioner.
Description
Technical field
The present invention relates to idle call metal electric heating tube technical field, specifically a kind of idle call metal electric heating tube end seal structure.
Background technology
Special vehicle air-conditioning work environment usually-40 DEG C～60 DEG C, at present, air-conditioning heat in low temperature environment the commonly used metal electric heating tube of mode embed vaporizer heat mode, transfer heat to evaporator surface by metal electric heating tube internal heating wire heating, then circulate evaporator surface heat to be dispersed in air by blower fan and reach to heat purpose.Because filling magnesia powder insulation between metal tube and heating alloy and eduction rod, as long as material meets the requirements is generally not present decreasing insulating problem, but metal pipe end opening seals and silicone rubber wire connection and outlet method is different the biggest impact to metal electric heating tube insulating properties.On market, metal electric heating tube heating alloy is drawn frequently with eduction rod, it is connected with eduction rod with copper sleeve one end that external diameter is Φ 4mm again, other end crimping silicone rubber wire, cover insulation alkali-free glass fibre sleeve pipe, the 703 sealing silica gel filled between alkali-free glass fibre sleeve pipe and copper sleeve and between metal pipe mouth and silicone rubber wire.On the one hand because copper sleeve is that soft or hard is connected with silicone rubber wire junction, under the effect of assembling or other external force factor, the 703 sealing silica gel filled between metal pipe mouth and silicone rubber wire easily ftracture, and moisture easily enters at cracking, causes electric heating tube decreasing insulating；Moreover because copper sleeve and silicone rubber wire junction volume are relatively big, because idle call metal electric heating tube caliber is generally Φ 7mm or Φ 9mm, metal tube inner space is the narrowest and small, causes charged junction point and metal tube gap is the least and decreasing insulating；On the other hand because alkali-free glass fibre pipe electric insulation and pressure functional under conventional sense, but its water resistance is poor, when 703 silica gel smeared at copper sleeve and between alkali-free glass fibre pipe are smeared uneven, time under high humidity environment, moisture easily penetrates into inside pipe casing, causes joint decreasing insulating.Metal electric heating tube insulating properties are low brings great hidden danger to special vehicle air-conditioning, even threatens and uses life security.
Summary of the invention
It is an object of the invention to according to the actually used demand of special vehicle air-conditioning, it is provided that a kind of idle call metal electric heating tube end seal structure, solve the problem that special vehicle idle call metal electric heating tube end seal silica gel cracking causes air-conditioning decreasing insulating.
Technical scheme is as follows:
A kind of idle call metal electric heating tube end seal structure, include metal tube, be positioned at the heating alloy within metal tube and be positioned at the left and right silicone rubber wire at metal tube two ends, it is characterized in that: the two ends of described heating alloy have been respectively fixedly connected with left and right eduction rod, it is respectively adopted the corresponding connection of brazing mode between the outer end of described left and right eduction rod with the inner of described left and right silicone rubber wire, and forms junction point respectively；The outside of described left and right silicone rubber wire is respectively installed with silica gel fiber sleeve.
Described idle call metal electric heating tube end seal structure, it is characterised in that: the inside of described metal tube is filled with magnesia powder and is formed with insulating barrier between described heating alloy and left and right eduction rod and metal tube.
Described idle call metal electric heating tube end seal structure, it is characterized in that: between two ends and described left and right eduction rod, junction point and the described silica gel fiber sleeve of described metal tube, and be separately filled with silica gel between described left and right silicone rubber wire and described silica gel fiber sleeve.
Beneficial effects of the present invention:
1, the present invention is according to the actually used demand of special vehicle air-conditioning, improve metal pipe end opening to seal and the connection of high-temperature-resisting silicon rubber electric wire and outlet method, solve the problem that special vehicle idle call metal electric heating tube end seal silica gel cracking causes air-conditioning decreasing insulating；
2, the present invention improves emphatically end seal, still uses common metal electric heating tube material and production technology, low cost, and technology maturation, risk are low；
3, present invention process is simple, operation easier is little, easily fabricated, failure rate is low, safe and reliable.
Accompanying drawing explanation
Fig. 1 is present configuration figure.
Fig. 2 is the structure sectional view of I part in Fig. 1.
Detailed description of the invention
See Fig. 1,2, a kind of idle call metal electric heating tube end seal structure, include metal tube 3, be positioned at the heating alloy 4 within metal tube 3 and be positioned at the left and right silicone rubber wire 1 at metal tube 3 two ends, the two ends of heating alloy 4 have been respectively fixedly connected with left and right eduction rod 5, it is respectively adopted the corresponding connection of brazing mode between the outer end of left and right eduction rod 5 with the inner of left and right silicone rubber wire 1 and forms junction point 6 respectively, substitute the method that M3 copper sleeve transition connects, make junction point 6 increase with the gap of metal tube 3, improve the insulating properties of metal electric heating tube；The outside of left and right silicone rubber wire 1 is respectively installed with silica gel fiber sleeve 8, improves the hardness after left and right silicone rubber wire 1 goes out metal tube 3 two-port.
In the present invention, the inside of metal tube 3 is filled with magnesia powder 2 and is formed with insulating barrier between heating alloy 4 and left and right eduction rod 5 and metal tube 3, make mutually insulated between the heating alloy 4 of energising, left and right eduction rod 5 and metal tube 3, it is ensured that metal tube 3 outer surface is not charged.
Between the two ends of metal tube 3 and left and right eduction rod 5, junction point 6 and silica gel fiber sleeve 8, and between left and right silicone rubber wire 1 and silica gel fiber sleeve 8, it is separately filled with 703 silica gel 7, improves the insulating properties of metal electric heating tube.
The enforcement step of the present invention is as follows:
The first step: the two ends of heating alloy 4 connect left and right eduction rod 5 respectively；
Second step: left and right eduction rod 5 uses the most corresponding and left and right silicone rubber wire 1 of brazing mode to be connected；
3rd step: the heating alloy 4 completing said process is seated in the inside of metal tube 3, mould ensures that centrage overlaps；
4th step: fill magnesia powder.Even filling Insulation Material magnesia powder 2 between heating alloy 4, left and right eduction rod 5 and metal tube 3, it is ensured that the outer surface of metal tube 3 is not charged, insulating properties are high；
5th step: lay silica gel fiber sleeve.The length of silica gel fiber sleeve 8 is not less than 40mm, it is ensured that it is able to be enclosed within left and right silicone rubber wire 1, and ensures that left and right silicone rubber wire 1 goes out the length of metal tube 3 two-port respectively not less than 20mm；
6th step: fill 703 silica gel.First the 703 solid-state silica gel sticks of long 20mm are filled in one end of metal tube 3, Reperfu-sion liquid 703 silica gel, ensure between metal tube 3 and left and right eduction rod 5, junction point 6, silica gel fibre sleeving 8, and between silica gel fiber sleeve 8 and left and right silicone rubber wire 1, all fill full 703 silica gel；Naturally after drying 48 hours, then the method for same steps is taked to fill 703 silica gel the other end of metal tube.
The present invention seals and silicone rubber wire connection and outlet method by improving metal pipe end opening, improve intensity and hardness at the port sealing of idle call metal electric heating tube and silicone rubber wire outlet spout, solve special vehicle idle call metal electric heating tube end seal silica gel and ftracture the problem causing air-conditioning decreasing insulating.
Claims (3)
1. an idle call metal electric heating tube end seal structure, include metal tube, be positioned at the heating alloy within metal tube and be positioned at the left and right silicone rubber wire at metal tube two ends, it is characterized in that: the two ends of described heating alloy have been respectively fixedly connected with left and right eduction rod, it is respectively adopted the corresponding connection of brazing mode between the outer end of described left and right eduction rod with the inner of described left and right silicone rubber wire, and forms junction point respectively；The outside of described left and right silicone rubber wire is respectively installed with silica gel fiber sleeve.
Idle call metal electric heating tube end seal structure the most according to claim 1, it is characterised in that: the inside of described metal tube is filled with magnesia powder and is formed with insulating barrier between described heating alloy and left and right eduction rod and metal tube.
Idle call metal electric heating tube end seal structure the most according to claim 1, it is characterized in that: between two ends and described left and right eduction rod, junction point and the described silica gel fiber sleeve of described metal tube, and be separately filled with silica gel between described left and right silicone rubber wire and described silica gel fiber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152846.6A CN105979619A (en) | 2016-03-16 | 2016-03-16 | Metal electric heating pipe end seal structure applied to air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152846.6A CN105979619A (en) | 2016-03-16 | 2016-03-16 | Metal electric heating pipe end seal structure applied to air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105979619A true CN105979619A (en) | 2016-09-28 |
Family
ID=56989103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152846.6A Pending CN105979619A (en) | 2016-03-16 | 2016-03-16 | Metal electric heating pipe end seal structure applied to air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105979619A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04363888A (en) * | 1991-06-07 | 1992-12-16 | Sakaguchi Dennetsu Kk | Small-diameter pipe heater |
| CN1190812A (en) * | 1996-11-19 | 1998-08-19 | 日本特殊陶业株式会社 | Ceramic hot-wire ignition pluger |
| CN103402279A (en) * | 2013-08-18 | 2013-11-20 | 江苏裕兴电器有限公司 | Electric heating pipe |
| CN205491237U (en) * | 2016-03-16 | 2016-08-17 | 合肥天鹅制冷科技有限公司 | Idle call metal electric heating pipe end seals structure |
-
2016
- 2016-03-16 CN CN201610152846.6A patent/CN105979619A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04363888A (en) * | 1991-06-07 | 1992-12-16 | Sakaguchi Dennetsu Kk | Small-diameter pipe heater |
| CN1190812A (en) * | 1996-11-19 | 1998-08-19 | 日本特殊陶业株式会社 | Ceramic hot-wire ignition pluger |
| CN103402279A (en) * | 2013-08-18 | 2013-11-20 | 江苏裕兴电器有限公司 | Electric heating pipe |
| CN205491237U (en) * | 2016-03-16 | 2016-08-17 | 合肥天鹅制冷科技有限公司 | Idle call metal electric heating pipe end seals structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |