CN1074180C - Thermal contracting fastening piece and mains socket - Google Patents
Thermal contracting fastening piece and mains socket Download PDFInfo
- Publication number
- CN1074180C CN1074180C CN97102784A CN97102784A CN1074180C CN 1074180 C CN1074180 C CN 1074180C CN 97102784 A CN97102784 A CN 97102784A CN 97102784 A CN97102784 A CN 97102784A CN 1074180 C CN1074180 C CN 1074180C
- Authority
- CN
- China
- Prior art keywords
- securing member
- fastener
- pyrocondensation
- thermal
- shrink
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims 1
- 238000013021 overheating Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
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- Connector Housings Or Holding Contact Members (AREA)
- Resistance Heating (AREA)
Abstract
The present invention discloses a thermal shrink fastener and a power socket on which the heat shrink fastener is installed. The thermal shrink fastener is an elastic annular piece with an opening, and the elastic annular piece with an opening is formed by the processing of a composite sheet formed by two materials with different thermal expansion coefficients are fixedly combined together. Because the inner layer and the outer layer of the fastener are made of the materials with different thermal expansion coefficients, when the fastener is heated, the free expansion amplitude of the outer layer is larger than that of the inner layer; thus, the annular fastener provided with an opening can generate inward shrink force. The thermal shrink fastener is installed on the neck of the existing power socket, and the clamping holding force can be enlarged along with the temperature rise of the thermal shrink fastener; accordingly, the local overheating phenomenon can be prevented from occurring. Moreover, the present invention has the advantages of simple structure, reliable connection, high safety, long service life, etc.
Description
The present invention relates to a kind of connection securing member and power supply plug-in unit, the supply socket that particularly relates to a kind of pyrocondensation securing member and this pyrocondensation securing member is housed.
Existing power supply plug-in unit, its stationary electrode are generally relied on oneself to hold with a firm grip by elastic metallic and are contacted with plug, or are contacted with plug by his power resilient metal member extruding electrode.During work, the hotter slightly genus in contact position is normal, but often make its loose contact owing to the contact position thrust is too small, or owing to burning causes this contact position generation overheated, thrust is further reduced or an aggravation is advanced in oxidation, overheated will be more serious, so that the scorification electrode, interrupt use, causes fire etc.For example the disclosed a kind of ZL87202413 of Patent Office of the People's Republic of China, name are called the utility model patent of long-life supply socket, the technical solution of this patent is to install a flexible steel ring on each connection electrode additional, improves the reliability that socket only utilizes connection electrode sheet metal self elastic force to clamp to reach.But both made is after handling like this, when the manufacturing or the installation quality of socket not good enough, or plug direction of insertion off-center, or instantaneous generation over-current phenomenon avoidance, and when connecting the bigger electric heating appliance of electrical power with it, still can raise because of local loose contact or electric current cause this contact site temperature greatly, the flexible steel ring that be positioned at this place this moment also produces temperature rise thereupon, when temperature rise acquires a certain degree, will inevitably reduce the elastic force of this flexible steel ring, can not guarantee promptly that in the case connection electrode contacts with the reliable of plug, thereby, this scheme and the connection reliability when failing to solve the socket electrode and local temperature rise occurring.
The objective of the invention is to provide a kind of supply socket that has the securing member of pyrocondensation function and this pyrocondensation securing member is housed.
The object of the present invention is achieved like this.This pyrocondensation securing member is to lump together the composite sheet of making admittedly by two kinds of materials having different thermal expansion coefficient, the elasticity ring in the band opening crack that processes from strand, and the material that thermal coefficient of expansion is high places skin, the material that thermal coefficient of expansion is low places nexine; This pyrocondensation securing member is installed in the neck of existing power supply socket connection electrode.
Owing to constitute the thermal coefficient of expansion difference of the inside and outside layer material of this pyrocondensation securing member, when it is heated, the amplitude of outer free wxpansion is greater than nexine, and two layers of material has been lumped together admittedly and has been pind down mutually, make outer field free wxpansion be subjected to the restriction of internal layer, thereby make the fasteners that is provided with opening will produce inside convergent force, and the high more this convergent force of temperature is big more.Install this kind pyrocondensation securing member at the neck of existing power supply socket connection electrode, its clamping grip can increase with its temperature rise, thereby can prevent the generation of local overheating, and has advantages such as simple in structure, that connection is reliable, safe in utilization, the life-span is long.
Concrete structure of the present invention and operating position are provided by following execution mode and accompanying drawing thereof;
Fig. 1: be a kind of overall structure front view of pyrocondensation securing member;
Fig. 2: be a kind of overall structure left view of pyrocondensation securing member;
Fig. 3: for the supply socket overall structure schematic diagram of pyrocondensation securing member is housed;
Describe concrete structure of the present invention and operating position in detail below in conjunction with accompanying drawing:
This pyrocondensation securing member is to use by two kinds of materials having different thermal expansion coefficient to lump together the composite sheet of making admittedly, the elasticity ring in the band opening crack that processes from strand, add the man-hour material that thermal coefficient of expansion is high and place skin, the material that thermal coefficient of expansion is low places nexine; This pyrocondensation securing member is installed in the neck of existing power supply socket connection electrode.
The composite sheet that constitutes this pyrocondensation securing member can obtain by the method for rolling or adhere, also can directly select existing thrermostatic bimetal-plate (as 5J16) for use.During with its actual fabrication pyrocondensation securing member, can cut one section composite sheet, laterally be cut into fillet again along rolling the stone roller direction, thermal coefficient of expansion by the composite sheet internal layer is lower than outer field requirement at last, it is bent into the circulus in band opening crack, and after the shaping, technology is eliminated the internal stress processing routinely.With the neck of these pyrocondensation securing member 3 mounting boards in existing power supply socket connection electrode 1, for general outer trans socket electrode, can be with the opening crack mounting board of this securing member 3 neck central authorities, by positioning convex 5 location at link electrode 1; For opening cartridge type electrode, securing member 3 directly can be sleeved on the electrode neck and get final product.When electrode 1 was under the normal temperature work, this securing member 3 was by the connection of the fastening electrode 1 of its pretension elastic force.This pyrocondensation securing member 3 can be widely used in the clamping of supply socket and female type plug electrode, the elastic fastener of also alternative some plug connector class switch contact (as male contact type, refer to type, lobe shape contact etc.).
Claims (4)
1, a kind of pyrocondensation securing member, this securing member is the opening circulus, it is characterized in that: the material that constitutes this securing member is to lump together the composite sheet of making admittedly by two kinds of materials having different thermal expansion coefficient, and the material that thermal coefficient of expansion is high places skin, and the material that thermal coefficient of expansion is low places nexine;
2, a kind of pyrocondensation securing member according to claim 1 is characterized in that: described securing member is the split ring of being made by the composite metal that the different two-layer elastic metallic material of thermal coefficient of expansion constitutes.
3, a kind of pyrocondensation securing member according to claim 1 and 2 is characterized in that; Described securing member is the split ring of being made by thrermostatic bimetal-plate.
4, a kind of supply socket that the pyrocondensation securing member is housed comprises housing (2), terminal screw (4) and connection electrode (1), it is characterized in that: the neck in connection electrode (1) also is equipped with pyrocondensation securing member (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102784A CN1074180C (en) | 1997-04-23 | 1997-04-23 | Thermal contracting fastening piece and mains socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102784A CN1074180C (en) | 1997-04-23 | 1997-04-23 | Thermal contracting fastening piece and mains socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1197312A CN1197312A (en) | 1998-10-28 |
| CN1074180C true CN1074180C (en) | 2001-10-31 |
Family
ID=5166442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97102784A Expired - Fee Related CN1074180C (en) | 1997-04-23 | 1997-04-23 | Thermal contracting fastening piece and mains socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074180C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067037U (en) * | 1990-03-30 | 1990-12-05 | 宋有山 | Safety socket |
| CN2200881Y (en) * | 1994-08-25 | 1995-06-14 | 赵高本 | Novel socket |
| CN2240200Y (en) * | 1995-10-20 | 1996-11-13 | 桂林市电线总厂 | Fastening plug and socket connecting power supply wiring |
-
1997
- 1997-04-23 CN CN97102784A patent/CN1074180C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067037U (en) * | 1990-03-30 | 1990-12-05 | 宋有山 | Safety socket |
| CN2200881Y (en) * | 1994-08-25 | 1995-06-14 | 赵高本 | Novel socket |
| CN2240200Y (en) * | 1995-10-20 | 1996-11-13 | 桂林市电线总厂 | Fastening plug and socket connecting power supply wiring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1197312A (en) | 1998-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 97102784.6 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97214546.X utility model patent to be given up, and in the 17 volume of the 44 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |