CN101222089A - Contact element with a connection for heating filaments - Google Patents
Contact element with a connection for heating filaments Download PDFInfo
- Publication number
- CN101222089A CN101222089A CNA2008100029004A CN200810002900A CN101222089A CN 101222089 A CN101222089 A CN 101222089A CN A2008100029004 A CNA2008100029004 A CN A2008100029004A CN 200810002900 A CN200810002900 A CN 200810002900A CN 101222089 A CN101222089 A CN 101222089A
- Authority
- CN
- China
- Prior art keywords
- heater strip
- contact element
- joint
- described contact
- connecting portion
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
- H01R4/366—Conductive members located under tip of screw with intermediate part between tip and conductive member intermediate part attached to the tip of the screw
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5058—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a ball
Landscapes
- Resistance Heating (AREA)
Abstract
The present invention provides contact elements (8, 8') with a connection for heating filament (7) or analogy stretchy electric conductor, including a making part (9) for making the heating filament (7) and a connecting part (10) for connecting current sources or voltage sources, wherein the making part (9) is arranged with columnar hole (13) and horizontal hole (14) for receiving the heating filament (7), in the columnar hole (13), setting a contact piece (18) loading by elasticity for making the heating filament (7).
Description
Technical field
The present invention relates to a kind of contact element that has the joint of the electric conductor that is used for heater strip or similar elongation, comprise and be used to connect the connection position of heater strip and the connecting portion that is used to connect current source or voltage source, wherein connect the position and have columniform hole, and wherein in connecting the position, be configured with the cross-drilled hole that is used to hold heater strip.
Background technology
In pipeline is made, at pipe diameter during, morely make pipeline made of plastic more greatly until about 750mm.By so-called electro-welding sleeve (Elektroschweissmuffe), the single end of different pipe section is interconnected to form pipeline.On link position, the end of per two pipe section that are complementary with casing inner diameter is inserted in the sleeve pipe and is in alignment with each other.In the inwall scope of electro-welding sleeve, heater strip is configured to the winding of coiled type.The heater strip winding is connected on the power supply.The resistance of selecting heater strip like this, promptly when electric current passed through, sleeve pipe plastic material inboard and the pipeline outside melted and forms and is welded to connect the position.After cooling, the heater strip winding is retained in the connecting portion.
For the connection of the heater strip winding that has current source or voltage source, the contact element at the two ends of heater strip is necessary, and it is retained in the electro-welding sleeve equally.Than long paper around heater strip extend more along with the raising of temperature.After making, promptly before the assembling, the length variations of heater strip may appear.Be the variation of the heater strip that coiled type reels, perhaps owing to extend or, can produce deviation with the precalculated position in the coiled type winding owing to shorten.The diameter of soldering sleeve also can be owing to variations in temperature changes, and this can cause lead to shorten equally or prolong.When giving prominence in the zone in pipe end the free space of heater strip in soldering sleeve, heater strip may be damaged or even be cut off when assembling.
Disclose the contact element that is used for the line conductor in EP892462B1, its center line conductor is inserted in the cross-drilled hole of connecting in the position, and the trip bolt that is had a cone point is clamped.Trip bolt is provided with interior hexagonal, and screws in perpendicular to the conductor axis by the inner hexagon spanner that is complementary with it.This contact element is not suitable for single solid conductor.
Summary of the invention
Set out by prior art, task of the present invention is, a kind of contact element is provided, it allows length variations forward or negative sense of electric conductor, it is made as far as possible simply, and it is for existing different electro-welding sleeves, can by simple and easy and tool free put into also.
This task so solves, promptly by a kind of contact element that has the joint of the electric conductor that is used for heater strip or similar elongation, comprise and be used to connect the connection position of heater strip and the connecting portion that is used to connect current source or voltage source, wherein connect the position and have columniform hole, wherein in connecting the position, be configured with the cross-drilled hole that is used to hold heater strip, and wherein in columniform hole, be provided with and pass through spring-loaded spheroid, be used to connect heat conductor.
Advantageous modification of the present invention provides in the dependent claims.
Advantageously, tool free and soldering or fusion process just can realize the connection between contact element and the heater strip.This so realizes, is and realizes connecting in the columniform hole of contact element, and spheroid is subjected to elasticity to load the ground setting perpendicular to cross-drilled hole.
Contact element self also can be assembled as far as possible simply.This realizes that so promptly in the columniform hole of connecting the position, spheroid is set at and is subjected in the spring-loading pressure containing part.
Also advantageously, contact element can be used for the electro-welding sleeve of different size.This realizes that so promptly contact element is made of connecting portion and connection position, wherein connects position and connecting portion and has columniform inner surface or outer surface, and it has the diameter of mutual coupling.
Further advantageously, contact element can be matched with different pipe diameters and pipeline wall thickness simply.This so realizes, promptly under the identical situation of the residue length of connecting portion, connects the position and has the length that is matched with wall thickness.Manufacturing expense and warehousing costs reduce thus.
Core of the present invention is, a kind of contact element that is used for lead is provided, its institute in production process neutralizes when using at the construction field (site) in steps, do not rely on temperature fluctuation and remain on mobility completely on the conductor axis direction, and do not rupture also not upsetting pressure because of high stretching force because of high convergent force.
Description of drawings
Embodiments of the invention are described with reference to the accompanying drawings.Accompanying drawing illustrates:
Fig. 1 has the perspective view according to the electro-welding sleeve of contact element of the present invention;
The cutaway view of the contact element among Fig. 2 Fig. 1;
The cutaway view of the connecting portion of the contact element among Fig. 3 Fig. 2 and;
The cutaway view at the connection position of the contact element among Fig. 4 Fig. 2;
Embodiment
Perspective shows electro-welding sleeve 1 in Fig. 1, is used to connect the pipeline of being made by thermoplastics.The internal diameter of electro-welding sleeve 1 is only more bigger than the external diameter of the pipeline that will connect.In Fig. 1, described straight connector as simple embodiment.Yet other structures are also arranged, and for example can be elbow, branch road or pipeline boring annex.Outwards look internally, electro-welding sleeve 1 has two wall body zones 2,3, the i.e. reinforced region 3 of the welding region 2 of Nei Bu ring-type and outside ring-type, this reinforced region surrounds welding region 2 annularly, and bearing the pressure that when welding, produces during the welding process, and it inwardly is delivered on the pipeline that needs to connect.
On the inner surface 5 of the welding region 2 of ring-type, heater strip 7 is embedded in the winding of coiled type in groove 6.Transparent walls body region 2,3 is provided with contact element 8,8 ＇ on the two ends of electro-welding sleeve 1.By contact element 8,8 ＇, the winding of heater strip 7 links to each other with the current/voltage source of not described herein.After welding region 2 and reinforced region 3 pressings and after being embedded into heater strip 7 in the sleeve pipe 1, contact element 8,8 ＇ link to each other with heater strip 7.
In Fig. 2,3 and 4, show the contact element 8 that has heat conductor 7 with cutaway view.Contact element 8 is formed by connecting position 9 and connecting portion 10.In Fig. 3, show connecting portion 10 separately, connect the position and in Fig. 4, show separately.Connecting portion 10 and connection position 9 have columniform inner surface or outer surface, it has exactly determined hole 11 or exactly determined external diameter 12, they can mate mutually, make these parts can by extruding or with after the exterior part heating by pressing.
Connect position 9 and have columniform hole 13 and cross-drilled hole 14.Connecting portion 10 major parts are solid.By general plug-in connector, the current/voltage source can be connected on the connecting portion 10.Connecting portion 10 have on circumference in the outside a plurality of around tooth portion 15, this tooth portion so constructs, and makes to avoid contact element 8 to be drawn out from the plastics of electro-welding sleeve 1.Except tooth portion 15, can also see protuberance 16, it prevents that contact element 8 from screwing out.
Be pressed into pressure containing part 17 in connecting the columniform hole 13 at position 9, this pressure containing part has and is subjected to spring-loading spheroid 18.Pressure containing part 17 is one side closed containers, and in pressure containing part, the spring that does not herein illustrate heads on flange 19 with spheroid 18 and outwards pushes.Before the assembling of connecting position 9 and connecting portion 10, pressure containing part 17 is loaded in the columniform hole 13.Pressure containing part 17 is projected in the cross-drilled hole 14 with flange 19 and spheroid 18.The diameter of cross-drilled hole 14 is far longer than the diameter of heater strip 7.Realize that thus heater strip 7 can be loaded by elasticity easily, and can be imported to more simply in the cross-drilled hole 14.
The spring action of spheroid 18 realizes the good connection of heater strip 7, and allows heater strip 7 not only in the axial direction simultaneously, and moves when becoming slight angle with the axis of cross-drilled hole 14 and heater strip 7.Be applied to contact force on the heater strip 7 by spheroid 18, be between 2 to 40N according to the size of spring and contact element 1.Replace spheroid 18, the object on plane also can be set, this object loads elastic force with even curface.Also can make cylindrical plane be squeezed on the heater strip 7 by elasticity by elastic force with the radius that conforms to the radius of heater strip 7 with loading.Contact element 8,8 ＇ only are used when electric welding and once are used for conduction.
For the variable diameter and the wall thickness range of the different size of electro-welding sleeve 1, the length L of connecting portion 10
VKeep invariable.Only being the length L a that connects position 9 increases along with the increased wall thickness of electro-welding sleeve 1 and variable diameter.Realize thus for the different electro-welding sleeves 1 that have different wall thickness, can produce and in the warehouse, preserve single-piece still less.
Claims (11)
1. the contact element (8,8 ＇) that has the joint of the electric conductor that is used for heater strip (7) or similar elongation, comprise and be used to the connecting portion (10) connecting the connection position (9) of heater strip (7) and be used to connect current source or voltage source, wherein connect position (9) and have columniform hole (13), and wherein in connecting position (9), be configured with the cross-drilled hole (14) that is used to hold heater strip (7), it is characterized in that, in columniform hole (13), be provided with the contact (18) that can be loaded elastic force and be used to connect heater strip (7).
2. according to the described contact element (8) that has the joint that is used for heater strip (7) of claim 1, it is characterized in that contact (18) is constructed to have the object (18) of contact-making surface.
3. according at least one described contact element (8) that has the joint that is used for heater strip (7) in claim 1 or 2, it is characterized in that contact (18) is constructed to spheroid (18).
4. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 3, it is characterized in that spheroid (18) is subjected to elasticity to load the ground setting perpendicular to cross-drilled hole (14) in the columniform hole (13) of contact element (8).
5. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 4, it is characterized in that the diameter of cross-drilled hole (14) is far longer than the diameter of heater strip (7).
6. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 5, it is characterized in that spheroid (18) is set at and is subjected in the spring-loading pressure containing part (17) in the columniform hole (13) of connecting position (9).
7. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 6, it is characterized in that being applied to contact force on the heater strip (7) by spheroid (18) is 2 to 40N.
8. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 7, it is characterized in that, contact element (8) is constructed to two-part, wherein connecting portion (10) and connect position (9) have columniform, be configured to mutually accurately inner surface for matching or outer surface.
9. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 8, it is characterized in that connecting portion (10) has the protuberance (16) that is configured on the circumference.
10. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 9, it is characterized in that connecting portion (10) has around ground and is configured in tooth portion (15) on the circumference.
11. according at least one described contact element (8) that has the joint that is used for heater strip (7) in the claim 1 to 10, it is characterized in that, for the wall of variable thickness scope of different electro-welding sleeves (1), the length (L of connecting portion (10)
V) keep invariable.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07100398.2 | 2007-01-11 | ||
| EP07100398A EP1944831A1 (en) | 2007-01-11 | 2007-01-11 | Contact element with a connection for heating filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101222089A true CN101222089A (en) | 2008-07-16 |
Family
ID=38068971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100029004A Pending CN101222089A (en) | 2007-01-11 | 2008-01-11 | Contact element with a connection for heating filaments |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1944831A1 (en) |
| CN (1) | CN101222089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591660A (en) * | 2018-05-16 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | Wiring terminal of electric melting pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB231923A (en) | 1923-12-13 | 1925-04-14 | Rudolf Woods | Improvements in sockets or holders for the thermionic valves of wireless systems and apparatus for telephony and telegraphy |
| DE3411179C1 (en) * | 1984-03-27 | 1986-01-16 | Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim | Electrical welding fitting or welding collar |
| GB2318224B (en) * | 1996-09-26 | 2001-02-21 | Gregory Jay Whatmore | Method and apparatus for securing the continuity of a power supply to an electrical appliance |
| DE19730435C1 (en) * | 1997-07-16 | 1998-10-29 | Harting Kgaa | Contact element with connector for flex conductor |
| FR2775373A1 (en) * | 1998-02-24 | 1999-08-27 | Jean Pierre Gerbaulet | Sliding contact for microcircuit cards and reader using said contact, which is omnidirectional, compact, easily installed and economical |
-
2007
- 2007-01-11 EP EP07100398A patent/EP1944831A1/en not_active Withdrawn
-
2008
- 2008-01-11 CN CNA2008100029004A patent/CN101222089A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591660A (en) * | 2018-05-16 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | Wiring terminal of electric melting pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1944831A1 (en) | 2008-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6406063B1 (en) | Pipe fittings | |
| EP2815164B1 (en) | Pipe, pipe connection and pipeline system | |
| US6164702A (en) | Reinforced thermoplastic pipe couping | |
| JPS6141292B2 (en) | ||
| CN103490220B (en) | A kind of anti-plastics soften the high-temperature high-voltage sealing electric connector of rear flowing | |
| IL101297A (en) | Adaptor for use with electrofusion fittings | |
| CN101222089A (en) | Contact element with a connection for heating filaments | |
| KR101837909B1 (en) | Structure and method of pipe joint for dispensing fluid | |
| MXPA02006670A (en) | Device for connecting two pipes consisting of a composite material based on a thermoplastic substance. | |
| JPH04503640A (en) | Method for melting and joining hollow plastic parts | |
| JP5576049B2 (en) | Corrugated tube manufacturing method | |
| CN202144914U (en) | Reinforced and hollow spiral tube | |
| KR20040096757A (en) | fusion jointing structure of polyethylene pipe | |
| CN210566918U (en) | Wedge-shaped welding structure of large-diameter plastic pipe | |
| CN100498036C (en) | Steel band reinforced polyethylene spiral ripple pipe and its connection fitting and connection method | |
| CN209977467U (en) | Novel HDPE winding arrangement wall pipe | |
| CN111705923A (en) | Steel pipe and square pipe assembled joint and construction method | |
| JPH10246382A (en) | Electrofusion joint for synthetic resin pipe | |
| CN109519612A (en) | Large-bore plastics pressure pipe and its manufacturing method, connection structure, connection method | |
| JP6921588B2 (en) | Temporary fixing structure between resin tubes | |
| KR200344542Y1 (en) | pipe coupler | |
| KR200353919Y1 (en) | Electric fittings for polyethylene pipe | |
| KR200275923Y1 (en) | synthetic resins pipe formed heat welding member | |
| CN216618958U (en) | Self-heating general hot fusion quick connection pipe fitting | |
| JP2011163524A (en) | Pipe connecting structure and pipe connecting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080716 |