CN2154536Y

CN2154536Y - Fuse isolation switch

Info

Publication number: CN2154536Y
Application number: CN 93225285
Authority: CN
Inventors: 范金城
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-09
Filing date: 1993-03-09
Publication date: 1994-01-26
Anticipated expiration: 2003-03-09

Abstract

The utility model discloses a fuse type isolation switch. The utility model is used for power distribution circuits and motor circuits with high short-circuit current. The utility model is used as the circuit protection. The utility model has three standards. The utility model is composed of a fusion body and a switch two parts. A semi-enclosed box body structure is composed of a base and a cover through a supporting component in the switch. The cover can make fan-shaped rotation with 60-65 DEG through the supporting point of the supporting component, and the cover can be dismantled from the base. A fixed contact, an arc extinguishing cover and a baffle plate are arranged on the base. A septum transversum rib and a septum longitudinale rib are also arranged. The septum longitudinale rib and a positioning slot are arranged in the cover. The fusion body is installed in the positioning slot. A handle is installed on the outer side of the cover. When the cover is closed, the switch is positioned at the position of switching. When the cover is opened by the handle, the switch is broken.

Description

Fuse isolation switch

The utility model relates to the lock turn-off that has only a closing position and closes.

HR type fuse disconnecting switch is mainly used in the power distribution circuit and motor circuit of high short circuit current, as mains switch, isolating switch and emergency button, makes circuit protection and uses.Existing HR5 type switch pedestal adopts the iron-clad structure, the manufacturing process complexity, and need the many insulating parts of configuration, exist the manufacturing cost height; Also has the arc extinguishing ability, shortcomings such as switch life weak point.

The purpose of this utility model is a kind of good electrical property of design, compact conformation, good looking appearance, safe and practical new series fuse disconnecting switch.

The purpose of this utility model is achieved through the following technical solutions.The HR6A fuse disconnecting switch mainly partly is made of base and lid two, and they connect the semi-enclosed body structure of composition by the compression moulding of unsaturated polyester fiberglass reinforced plastics with supporter; By the fulcrum of supporter, lid base is relatively done revolution and demolition; Base is provided with fixed contact and arc-extinguish chamber, and tunic tissue and mediastinum muscle; Cover and be provided with mediastinum muscle and groove, fuse-link is installed in the groove; Handle is equipped with in the outside of lid.Close when covering, switch just is in closing position, opens when covering then switch disjunction with handle.

Accompanying drawing 1 is the structure chart of the utility model isolating switch, and Fig. 2 is the end view of Fig. 1, the fixed contact that Fig. 3 uses for 160A, Fig. 4 is the end view of Fig. 3, and Fig. 5 is the fixed contact that 250A, 400A, 630A use, and Fig. 6 is the end view of Fig. 5, Fig. 7 is an arc-extinguish chamber, and Fig. 8 is the end view of Fig. 7.1 is base among the figure, and 2 is plate washer, and 3 are lid, and 4 is sensitive switch, and 5 is handle, and 6 is famous brand, and 7 is fixed contact, and 8 is arc-extinguish chamber, and 9 is spring leaf, and 10 is fuse-link, and 11 is supporter.

In conjunction with the accompanying drawings, provide embodiment of the present utility model.

The total 160A of HR6A series fuse disconnecting switch, 250A, during 400A(660V) or during 630A(380V) three kinds of specifications, as long as the fuse of employing respective electrical traffic specification and fixed contact, arc-extinguish chamber, the corresponding overall dimension that changes switch just constitutes the switch of different current classes, and its structure is just the same.As seen, it is made of base 1 and lid 3 two large divisions from Fig. 1 and Fig. 2, and they are by the compression moulding of unsaturated polyester fiberglass reinforced plastics, and this material insulation property is superior, and thermal endurance and mechanical strength height are easy to machine-shaping.Base 1 and lid 3 are connect by supporter 11 and form semi-enclosed body structure, fulcrum by supporter, deep-slotted chip breaker along the base both sides, lid 3 can do 60 °-65 ° fan-shaped rotation and from the base 1 demolition get off, after lid is opened, can make to keep tangible isolation distance between fixed contact and fuse-link joint, guarantee the connection and the disjunction of switch, and convenient wiring and installation on switch.Fixed contact 7 and arc-extinguish chamber 8, plate washer 2 are installed on the base 1, also are provided with tunic tissue and mediastinum muscle, tunic tissue is divided into inlet wire and outlet two parts to base, and the mediastinum muscle is used for increasing the creepage distance of interpolar, has guaranteed security reliability.Also have installing hole on the base plate of base and be used for installing switch, fine motion auxiliary switch 4 can be installed in the side, sends the closing of isolating switch, break signal.Establish mediastinum muscle and location notch in the lid 3, the clamp of fuse-link is installed in this groove, the axiality of contact before and after can guaranteeing like this, spring leaf 9 also is installed in the lid, in the use as long as press spring leaf below the fuse-link clamp gently, can take out fuse-link 10,, then can be used as general isolating switch and use if blade is replaced fuse-link.There is plastic handle 5 in the outside of lid 3 and the plane of famous brand 6 is installed, and supporter 11 is installed in the side.The utility model HR6A series fuse disconnecting switch since appropriate design the shape and size of each part, particularly fixed contact and arc-extinguish chamber, structure is more become rationally, thereby it is little to have overall dimension, good looking appearance, good electrical property, characteristics such as install and use, easy to maintenance, Fig. 3 and Fig. 4 are the static contact structure figure that 160A adopts, and it is formed by 2 millimeters sheet stampings, the distance at installing hole and binding post center is 17 millimeters, and the bottom size that is installed to base is 19 * 43 millimeters.Fig. 5 and Fig. 6 are the static contact structure figure that 250A and 400A, 630A adopt, it respectively by 2 millimeters (250A) or 3 millimeters (400A, 630A) sheet stampings, be welded, the distance at installing hole and binding post center is respectively 30 millimeters (250A) or 36 millimeters, and being installed to the base bottom size is 63 * 28 millimeters (250A) or 72 * 32 millimeters (400A, 630A).Fig. 7 and 8 is the structure chart of arc-extinguish chamber, and its size a is respectively 35,46 and 55, a ₁Be respectively 31,40 and 47, b is respectively 47.53 and 60, b ₁Be respectively 36,39 and 44, c is respectively 29,38 and 48, c ₁Be respectively 18,23 and 26, because Element Design, reasonable structural arrangement, therefore has suitable overall dimension, the length a width b shown in the accompanying drawing 1 and the size of height H, 160A is 216 * 135 * 142 millimeters, and 250A is 280 * 185 * 162 millimeters, and 400A, 630A are 300 * 245 * 195 millimeters.

The utility model fuse disconnecting switch is to design by up-to-date standard, and its electrical performance indexes is:

Rated current 160A, 250A, 400A, 630A;

Nominal insulation voltage 800V;

Industrial frequency experiment voltage 3000V;

Specified connection and breaking capacity are connected 10 times, and 8 times of disjunctions behind the adapted phase failure annunciator, also have the function of break-make separate unit motor, and performance is a kind of renewal product of novelty considerably beyond existing like product.

Claims

1, a kind of novel fuse disconnecting switch, it is made up of switch and fuse-link, fuse-link is installed in the lid, lid connects by supporter and base and forms semi-enclosed body structure, it is characterized in that covering fulcrum by supporter, along the deep-slotted chip breaker of base both sides, can do 60 °-65 ° fan-shaped rotation and from the base demolition get off; Base is provided with fixed contact and arc-extinguish chamber, and tunic tissue and mediastinum muscle; Cover and be provided with mediastinum muscle and groove, fuse-link is installed in the groove; Handle is equipped with in the outside of lid.

2,, it is characterized in that the overall dimension length * wide * height of three kinds of switches is respectively 216 * 135 * 142 millimeters of 160A according to the said fuse disconnecting switch of claim 1; 280 * 185 * 162 millimeters of 250A; 300 * 245 * 195 millimeters of 400A, 630A.