CN2588497Y - Self-controlled protective type branching-cable - Google Patents
Self-controlled protective type branching-cable Download PDFInfo
- Publication number
- CN2588497Y CN2588497Y CN02286607U CN02286607U CN2588497Y CN 2588497 Y CN2588497 Y CN 2588497Y CN 02286607 U CN02286607 U CN 02286607U CN 02286607 U CN02286607 U CN 02286607U CN 2588497 Y CN2588497 Y CN 2588497Y
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- CN
- China
- Prior art keywords
- branch cable
- cable
- branch
- thermal protector
- protective type
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- 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
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Abstract
The utility model relates to a self-controlled protective type branch cable, belonging to the technical field of cables. The branch cable is composed of a main cable 6, a branch cable 5, a C-shaped clamp 3, an injection moulding layer 1, etc. In the utility model, the inner part of the branch cable is provided with a thermal protector 4 which is bound on the surface of a bare conductor of the branch cable; the inner part of the main cable is provided with a control line 2; pins of the thermal protector 4 are respectively connected with the control line 2 forming a preliminarily warning and overload protecting loop of the branch cable. The branch cable can realize the overload protection or the overload preliminarily warning and protection of a branch loop by the thermal protector bound on the branch cable and can the length of the branch circuit to be free from limits, and the branch cable has no need for adding switches for separating and protecting no matter the length of the branch loop. The branch cable not only can enhance engineering quality and reduce engineering cost, but also can reduce engineering work and shorten construction period.
Description
Technical field
The utility model relates to a kind of structure of branch cable, belongs to the cable technology field.
Background technology
Traditional branch cable (promptly producing the branch cable that uses at present) is that direct bifurcated goes out branch cable on trunk cable.Branch cable has excellent properties of product, and it not only can improve project quality, more can reduce quantities, shortens construction period, and the application in modern architecture is more and more wider.But each return cable of traditional branch cable can't realize the protection of trunk-line circuit switch in existing scheme of electric power; make a return cable whether under rated current safe operation can not get guaranteeing; make that in application the design length of a return cable is restricted.All about 3 meters, restriction branch cable length reduces the probability that Zhi Huilu breaks down to a return cable length at present.If actual require longlyer, need to separate and protect next section branch cable adding switch on the Zhi Huilu about 3 meters, so, not only increase construction volume, increased engineering cost again, can not embody the advantage of branch cable.
The utility model content
The purpose of this utility model is that the deficiency that existing branch cable exists, the auto-control protective type branch cable that provides a kind of trunk cable and branch cable can both be subjected to switch protection will be provided.
The purpose of this utility model is to realize by the improvement to existing branch cable; auto-control protective type branch cable; comprise trunk cable 6, branch cable 5, C type folder 3 and injection molded layers 1; it is characterized in that being provided with in the branch cable thermal protector 4; be provided with control line 2 in the trunk cable, the pin of thermal protector 4 is connected with control line 2.Described thermal protector 4 is a micro plastic shell thermal protector.Micro plastic shell thermal protector 4 is arranged on the Y connection position of branch cable 5 near trunk cable 6.The direct colligation of micro plastic shell thermal protector is on the bare conductor surface of branch cable.Described control line 2 disconnects at branch cable and trunk cable crotch.Described thermal protector 4 is two micro plastic shell thermal protectors.Control line 2 is two.
Auto-control protective type branch cable is two kinds of versions; two kinds of protection forms are just arranged: a kind of is near the Y connection position on branch cable; with the 4 direct colligations of a micro plastic shell thermal protector on the bare conductor surface; two pins of thermal protector are connected with a control line of trunk cable inside; constitute a control loop; the shunt opening coil of control major loop trunk cable switch; when the branch cable conductor reaches maximum temperature (70 ℃ of polyvinyl chloride cables; 90 ℃ of cross-linked polyethylene insulated cables) time; the thermal protector action; the switch of protection trunk cable is disconnected; cut off the electricity supply; effectively protected a return cable, i.e. branch cable overload protection form.Another kind is near the Y connection position on branch cable; two micro plastic shell thermal protectors 4 are distinguished colligations on the bare conductor surface; four pins of two thermal protectors are connected with inner two control lines that are provided with of trunk cable respectively, constitute two control loops.The shunt opening coil of a circuit controls major loop trunk cable switch; when the branch cable conductor reaches maximum temperature (70 ℃ of polyvinyl chloride cables; 90 ℃ of cross-linked polyethylene insulated cables) time; the thermal protector action; the switch of protection trunk cable is disconnected; cut off the electricity supply, effectively protected a return cable, be branch cable overload protection form.Another circuit controls branch cable overload pre-alarm, promptly when the branch cable conductor temperature soon reached maximum temperature, control system was reported to the police automatically, and this form adds the overload protection form for having pre-alarm.
The utility model is simple and reasonable, manufactures easily, and cost is low.Auto-control protective type branch cable is suitable for the following polyvinyl chloride insulation of rated voltage 1KV, polyethylene insulation, crosslinked polyetylene insulated, India-rubber cable and fire-retardant, fire-resistant, low smoke, zero halogen type cable.Can realize effectively that by the thermal protector of colligation on branch cable Zhi Huilu overload protection or overload pre-alarm add overload protection, make that a return cable length is unrestricted, no matter how long Zhi Huilu does not need to increase switch yet again and separates protection.It not only can improve project quality, reduces engineering cost, more can reduce quantities, shortens construction period.Excellent popularization using value and market prospects are arranged.
Description of drawings
Accompanying drawing 1 is the structural representation at Y connection of the present utility model position;
1 injection molded layers, 2 control lines, 3C type folder, 4 thermal protectors, 5 branch cables, 6 trunk cables among the figure.
Embodiment
One; close Y connection position on branch cable; with the 4 direct colligations of a micro plastic shell thermal protector on the bare conductor surface; two pins of thermal protector are connected with a control line of trunk cable inside; constitute a control loop; the shunt opening coil of control major loop trunk cable switch; when the branch cable conductor reaches maximum temperature (70 ℃ of polyvinyl chloride cables; 90 ℃ of cross-linked polyethylene insulated cables) time; the thermal protector action; the switch of protection trunk cable is disconnected; cut off the electricity supply, effectively protected a return cable, be i.e. branch cable overload protection form.
Two, close Y connection position on branch cable; two micro plastic shell thermal protectors 4 are distinguished colligations on the bare conductor surface; four pins of two thermal protectors are connected with inner two control lines that are provided with of trunk cable respectively, constitute two control loops.The shunt opening coil of a circuit controls major loop trunk cable switch; when the branch cable conductor reaches maximum temperature (70 ℃ of polyvinyl chloride cables; 90 ℃ of cross-linked polyethylene insulated cables) time; the thermal protector action; the switch of protection trunk cable is disconnected; cut off the electricity supply, effectively protected a return cable, be branch cable overload protection form.Another circuit controls branch cable overload pre-alarm, promptly when the branch cable conductor temperature soon reached maximum temperature, control system was reported to the police automatically, and this form adds the overload protection form for having pre-alarm.
Claims (7)
1, a kind of auto-control protective type branch cable; comprise trunk cable (6), branch cable (5), C type folder (3) and injection molded layers (1); it is characterized in that being provided with in the branch cable thermal protector (4), be provided with control line (2) in the trunk cable, the pin of thermal protector (4) is connected with control line (2).
2, auto-control protective type branch cable according to claim 1 is characterized in that said thermal protector (4) is a micro plastic shell thermal protector.
3, auto-control protective type branch cable according to claim 1 is characterized in that said micro plastic shell thermal protector (4) is arranged on the Y connection position of branch cable (5) near trunk cable (6).
4, auto-control protective type branch cable according to claim 1 is characterized in that the bare conductor surface of the direct colligation of said micro plastic shell thermal protector (4) at branch cable.
5, auto-control protective type branch cable according to claim 1 is characterized in that said control line (2) disconnects at branch cable and trunk cable crotch.
6, auto-control protective type branch cable according to claim 1 is characterized in that said thermal protector (4) is two micro plastic shell thermal protectors.
7, auto-control protective type branch cable according to claim 1 is characterized in that said control line (2) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02286607U CN2588497Y (en) | 2002-12-04 | 2002-12-04 | Self-controlled protective type branching-cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02286607U CN2588497Y (en) | 2002-12-04 | 2002-12-04 | Self-controlled protective type branching-cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588497Y true CN2588497Y (en) | 2003-11-26 |
Family
ID=33747269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02286607U Expired - Fee Related CN2588497Y (en) | 2002-12-04 | 2002-12-04 | Self-controlled protective type branching-cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588497Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186237A (en) * | 2015-08-03 | 2015-12-23 | 深圳市金达照明有限公司 | DMX control device tree-shaped branch cable |
-
2002
- 2002-12-04 CN CN02286607U patent/CN2588497Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186237A (en) * | 2015-08-03 | 2015-12-23 | 深圳市金达照明有限公司 | DMX control device tree-shaped branch cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031126 Termination date: 20100104 |