WO2018082385A1

WO2018082385A1 - Disconnect switch

Info

Publication number: WO2018082385A1
Application number: PCT/CN2017/099636
Authority: WO
Inventors: 王亮华
Original assignee: 乐清市也为电气有限公司
Priority date: 2016-11-02
Filing date: 2017-08-30
Publication date: 2018-05-11
Also published as: CN106356239A; CN106356239B

Abstract

A disconnect switch. Oval receiving grooves (111, 121) are respectively provided at corresponding positions of a base (11) and an upper housing (12) of the disconnect switch. A protruding column (31) is separately provided on both sides of a movable contact carrier (3). The movable contact carrier (3) is movably disposed in the oval receiving grooves (111, 121) by means of the protruding columns (31). A spring (6) or/and a tension spring (7) is provided between the movable contact carrier (3) and the base (11). One end of the spring (6) or/and one end of the tension spring (7) acts on the base (11) and the other end acts on the movable contact carrier (3). The point of action of the spring (6) or/and the tension spring (7) on the movable contact carrier (3) is located above the protruding column (31) and near the protruding column (31). The disconnect switch overcomes the shortcomings in the prior art, and provides a novel disconnect switch which is easy to operate and high in closing and opening speed and has an indication function.

Description

Isolation switch

Technical field

The invention relates to a switch, in particular an isolating switch.

Background technique

The existing isolating switch structure is a multi-contact isolating switch, and a plurality of moving contacts are linearly moved up and down under the direct driving of the handle and the connecting rod to realize separation and contact of the movement and the static, thereby realizing the closing and opening of the isolating switch. There are some shortcomings in the product: First, the use of precious metals is large, the production cost is high, and the reliability is also reduced due to many contacts; Second, there is no quick closing device, and the closing speed of the product depends on the speed of the artificial operating handle, Conducive to the electrical life of the product; Third, there is no arc-setting foot, the arc stays long between the static and dynamic contacts, the contact is easy to burn during the opening and closing operation of the product; Fourth, the product does not have a pointing device to indicate the touch of the product The head position or the closing state brings a lot of inconvenience to the user.

technical problem

The invention overcomes the deficiencies of the prior art, and provides a novel isolation switch with convenient operation, closing and opening speed blocks and indicating function.

Technical solution

In order to achieve the above object, the present invention provides the following technical solution: an isolating switch includes a housing, a handle, a movable contact bracket, a moving contact and a static contact, wherein the housing is divided into a base and an upper housing. The movable contact is fixedly disposed on the movable contact bracket, and the movable contact bracket is movably connected to the handle through the connecting rod, wherein the corresponding positions of the base and the upper housing are respectively provided with elliptical receiving slots, The two sides of the movable contact bracket are respectively provided with a protruding column, and the movable contact bracket is disposed in the elliptical receiving groove through the movable column, and the spring or/and the tension spring are disposed between the movable contact bracket and the base, and the spring Or / and one end of the tension spring acts on the base, and the other end acts on the movable contact bracket, and the action point of the spring or/and the tension spring and the movable contact bracket is located above the protrusion and near the protrusion.

Beneficial effect

By adopting the above scheme, we can move the movable contact holder in the elliptical receiving groove when it is operated. In this way, the movable contact has an overtravel function, especially when the contact of the movable contact is in close contact with the contact of the static contact, and the contact and the movable contact of the movable contact are opened at the time of opening The contacts are separated farther and are easier to break.

A further arrangement of the present invention further includes: a movable contact energy storage device, the movable contact energy storage device includes an energy storage rotating member and an energy storage abutting rod, wherein the energy storage rotating member is rotatably disposed on the base, and the energy storage rotates a first extension arm and a second extension arm are disposed on the piece, the rotating sleeve of the handle is provided with a long groove, the end of the first extension arm is disposed in the long groove, and the end of the second extension arm The upper end of the energy storage abutting rod is hinged, and the energy storage abutting rod is disposed between the two limiting ribs of the base, and the two side walls of the long groove symmetry can rotate against the first extending arm when the handle rotates, Thereby driving the energy storage rotating member to rotate, the energy storage rotating member rotates to drive the second extending arm to swing, the second extending arm swings to realize the energy storage resisting rod to move up and down, and the movable contact bracket is disposed corresponding to the lower end portion of the energy storage resisting rod The bump is separated from the lower end of the energy storage abutting bar when the isolating switch is disconnected, and the bump is gradually close from the separation to the side of the lower end of the energy storage resisting bar during the closing process of the isolating switch. The handle continues to rotate and the movable contact bracket stops Rotating, the final handle rotation is about to be in place, and the energy storage resisting lever is about to be pushed to the highest position by the energy storage rotating member, and the convex block is released by the side of the lower end of the storage rod. At this time, the movable contact bracket rotates the moving contact to realize the quick rotation. In the embodiment, the energy storage rotating member is further provided with a third positioning arm, the third positioning arm is curved, the end portion is provided with a positioning circular protrusion, and the positioning protrusion is arranged on the base The positioning rib is provided with two recesses for accommodating the circular protrusions. When the isolating switch is opened or closed, the circular protrusions are placed in one of the notches, and the width of the long groove is greater than The thickness of the first extension arm.

By adopting the above scheme, the moving contact can generate an instantaneous force when closing, and achieve a quick closing action. The specific working principle is: when the isolating switch is disconnected, the protruding block is spaced apart from the lower end of the energy storage resisting bar, and the isolating switch During the closing process, the bump gradually approaches from the separation until it abuts against the side of the lower end of the energy storage resisting rod. At this time, the handle continues to rotate, and the bump is restrained by the stored energy against the rod, causing the movable contact bracket to stop rotating and rotating. The energy is all concentrated on the movable contact bracket. Finally, the handle rotation is about to be in place. When the energy storage resisting lever is pushed to the highest position by the energy storage rotating member, the bump is released by the side of the lower end of the storage rod, and the movable contact bracket is instantaneously moved. Drive the moving contact to rotate quickly to achieve closing, so as to achieve the purpose of quick closing. In addition, the energy storage rotating member is further provided with a third positioning arm, the third positioning arm is curved, the end portion is provided with a positioning circular protrusion, the base is provided with a positioning convex rib, and the positioning convex rib is provided with Two recesses for accommodating the circular protrusions, the circular protrusions are placed in one of the notches when the isolating switch is opened or closed, the purpose is to prevent the energy storage rotating parts from being freely movable, and to ensure that The stability of the work, the width of the long groove is greater than the thickness of the first extension arm, which makes the energy storage rotor not initially driven by the rotation of the handle, simplifying its length.

According to still another aspect of the present invention, the lower end of the movable contact bracket is provided with a mounting through hole or a slot, and the movable contact bracket is provided with a notch on one side of the protruding post, and the notch is disposed through the through hole or the slot. The upper end of the movable contact is provided with a hanging hole, the upper end of the movable contact is inserted into the mounting through hole or the slot, and the hanging hole is exposed from the notch, and a tension spring is arranged between the base and the movable contact bracket, and one end of the tension spring is provided It is fixed on the base and the other end is hung in the hanging hole.

By adopting the above scheme, the installation of the tension spring can be facilitated, and since the movable contact bracket is made of plastic parts, and the movable contact is made of metal, the tension spring is arranged on the metal, and the arrangement of the tension spring is increased. The closing force and the disengagement force of the moving contact.

According to still another aspect of the present invention, the movable contact bracket is disposed on one side of the protruding post with a spring seat, and the base is provided with a spring fixing seat, one end of the spring abuts against the spring seat, and the other end abuts against the spring fixing seat. on.

By adopting the above scheme, the installation of the spring can be facilitated, and the setting of the spring increases the closing force and the disengagement force of the moving contact.

The final setting of the present invention is that an indicator block is disposed above the movable contact bracket, and the base is provided with a through hole for observing the indicator block.

By adopting the above scheme, it is convenient to know the state of the isolating switch without occurrence of an error phenomenon, and the state of the switch is not erroneously judged due to the state of the handle.

The invention is further described below in conjunction with the drawings.

DRAWINGS

Figure 1 is a perspective view of an embodiment of the present invention;

2 is a schematic diagram of an internal structure of an embodiment of the present invention;

3 is a structural view of a base according to an embodiment of the present invention;

4 is a structural view of an upper cover according to an embodiment of the present invention;

FIG. 5 is a structural diagram of an energy storage device for a moving contact according to an embodiment of the present invention; FIG.

Figure 6 is a structural view of an energy storage rotating member according to an embodiment of the present invention;

Figure 7 is a structural view of an energy storage abutment bar according to an embodiment of the present invention;

Figure 8 is a structural view of a handle of an embodiment of the present invention;

Figure 9 is a structural view of a movable contact according to an embodiment of the present invention;

10 is a structural view of a movable contact bracket according to an embodiment of the present invention;

Figure 11 is a front and back structural view of the product of the embodiment of the present invention when it is disconnected;

Figure 12 is a front and back structural view of the embodiment of the present invention when energy storage is started;

Figure 13 is a front and back structural view of the embodiment of the present invention when energy storage is completed;

Figure 14 is a front and back structural view of the product closing of the embodiment of the present invention;

Figure 15 is a front structural view of the opening process of the embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIG. 1 to FIG. 15, an isolating switch includes a housing 1, a handle 2, a movable contact holder 3, a movable contact 4 and a static contact 5, wherein the housing 1 is divided into a base 11 and an upper case. The movable contact 4 is fixedly disposed on the movable contact holder 3, and the movable contact holder 3 is movably connected to the handle 2 through a connecting rod. In the embodiment of the invention, the base 11 and the upper housing 12 are Elliptical accommodating slots 111 and 121 are respectively disposed at corresponding positions, and the movable contact brackets 3 are respectively disposed on the two sides of the movable contact brackets 3, and the movable contact brackets 3 are disposed in the elliptical accommodating slots 111 through the protrusions 31, 121, a spring 6 or/and a tension spring 7 is disposed between the movable contact bracket 3 and the base 11, and one end of the spring 6 or/and the tension spring 7 acts on the base 11, and the other end acts on the movable contact bracket 3. Above, the action point of the spring 6 or/and the tension spring 7 and the movable contact holder 3 is located above the protrusion 31 and close to the protrusion 31; by adopting the above scheme, we can make the movable contact holder 3 be operated when Moving in the elliptical accommodating grooves 111, 121 In this way, the movable contact 4 can have an overtravel function, especially when the contact of the movable contact 4 and the contact of the static contact 5 are in closer contact, and the contact of the movable contact is opened during the opening. The contact of the moving contact is further separated to facilitate the breaking. Finally, the force of the spring 6 or/and the tension spring 7 against the movable contact bracket 3 can accelerate its opening or closing, and the direction of their force and the movement when opening or closing The contact 4 is swung in the same direction.

In the embodiment of the present invention, the movable contact energy storage device further includes an energy storage rotating member 81 and an energy storage resisting rod 82, and the energy storage rotating member 81 is rotatably disposed on the base 11. The energy storage rotating member 81 is provided with a first extending arm 811 and a second extending arm 812. The rotating sleeve of the handle 2 is provided with a long groove 21, and the end of the first extending arm 811 is placed in the long groove 21 The end of the second extension arm 812 is hinged with the upper end of the energy storage abutment bar 82, and the energy storage abutment bar 82 is disposed between the two limiting ribs of the base 11, where the ribs are mainly limited The energy storage bar 811 can be swung, other specific requirements are not required, and the rib can also have other functions. The two side walls of the long groove 21 can be rotated against the first extension arm 811 when the handle 2 rotates, thereby driving The energy storage rotating member 81 rotates, the energy storage rotating member 81 rotates to drive the second extending arm 812 to swing, the second extending arm 812 swings to realize the energy storage resisting rod 82 to move up and down, and the movable contact bracket 3 is disposed to interfere with the energy storage. The corresponding bump 32 of the lower end of the rod 82, the bump 32 and the energy storage when the isolating switch is disconnected The lower end of the contact bar 82 is spaced apart. During the closing process of the isolating switch, the protrusion 32 is gradually close from the separation until it abuts against the side of the lower end of the energy storage abutting bar 82. At this time, the handle 2 continues to rotate and the movable contact holder 3 stops rotating. Finally, the rotation of the handle 2 is about to be in place, and when the energy storage resisting lever 82 is pushed to the highest position by the energy storage rotating member 81, the bump 32 is released by the side of the lower end portion of the energy storage resisting lever 82, and the movable contact bracket 3 drives the movable contact. The first rotating arm 81 is further provided with a third positioning arm 813. The third positioning arm 813 is curved and the end portion is provided with a positioning circular protrusion 8131. The base 11 is provided with a positioning rib 112. The positioning rib 112 is provided with two notches 1121 for accommodating a circular protrusion. When the isolation switch is opened or closed, the circular protrusion 8131 is Placed in one of the notches 1121, the purpose is to prevent the energy-storing rotating member 81 from being arbitrarily moved to ensure the stability of its operation, and the width of the long groove 21 is greater than the thickness of the first extending arm 811; The solution can make the moving contact 4 generate an instant when it is closed. The fast closing action is achieved. The specific working principle is: when the isolating switch is disconnected, the bump 32 is spaced apart from the lower end of the energy storage abutting bar 82, and the bump 32 is gradually close from the separation until the conflict is reached during the closing process of the isolating switch. The energy storage is opposite to the side of the lower end of the rod 82. At this time, the handle 2 continues to rotate. At this time, the bump 32 is held by the energy storage resisting rod 82, and the movable contact holder 3 stops rotating. The rotating energy is concentrated on the movable contact bracket. 3, the last handle 2 rotation is about to be in place, the energy storage resisting bar 82 is about to be pushed to the highest position by the energy storage rotating member 81, the bump 32 is released by the side of the lower end of the energy storage resisting bar 82, and the movable contact bracket 3 is moved instantaneously. The contact 4 is quickly rotated to achieve closing, thus achieving the purpose of quick closing. The width of the long groove 21 is greater than the thickness of the first extension arm 811. This arrangement causes the energy storage rotating member 81 to be initially driven by the rotation of the handle 2, simplifying its length.

In the embodiment of the present invention, the lower end of the movable contact bracket 3 is provided with a mounting through hole or a slot 33, and the movable contact bracket 3 is disposed on one side of the protruding post 31 with a notch 34, the notch 34 and the mounting through hole or The slot 33 is disposed through the slot, and the upper end of the movable contact 4 is provided with a hanging hole 41. The upper end of the movable contact 4 is inserted into the mounting through hole or the slot 33, and the hanging hole 41 is exposed from the notch 34. A tension spring 7 is disposed between the movable contact brackets 3, and one end of the tension spring 7 is fixed on the base 11 and the other end is hung in the hanging hole 41; by adopting the above scheme, the installation of the tension spring 7 can be facilitated, and The head bracket 3 is made of plastic parts, and the movable contact 4 is made of metal, so that the tension spring 7 is relatively firm on the metal, and the arrangement of the tension spring 7 increases the closing force and the disengagement force of the movable contact 4. .

In the embodiment of the present invention, the movable contact bracket 3 is disposed on one side of the protruding post 31 with a spring seat, and the base 11 is provided with a spring fixing seat. One end of the spring 6 is in contact with the spring seat, and the other end is in contact with The spring is fixed on the seat, so that the spring 6 can be easily installed. In addition, the spring 6 is arranged to increase the closing force and the repulsion force of the movable contact. The movable contact bracket 3 is provided with an indicating block 35. The base 11 is provided. The through hole 113 of the observation indicating block 35 is disposed thereon, so that the state of the isolating switch can be easily known without occurrence of an erroneous phenomenon, and the state of the switch is not erroneously judged due to the state of the handle 2.

Embodiments of the invention

Industrial applicability

Sequence table free content

Claims

An isolating switch includes a housing, a handle, a movable contact bracket, a movable contact and a static contact, wherein the housing is divided into a base and an upper housing, and the movable contact is fixedly disposed on the movable contact bracket, The movable contact bracket is movably connected to the handle through the connecting rod, wherein the corresponding positions of the base and the upper housing are respectively provided with elliptical receiving grooves, and the movable contact brackets are respectively provided with protruding columns The movable contact bracket is disposed in the elliptical receiving groove by the movement of the protrusion, and a spring or/and a tension spring is disposed between the movable contact bracket and the base, and one end of the spring or/and the tension spring acts on the base, and the other end Acting on the movable contact bracket, the action point of the spring or/and the tension spring and the movable contact bracket is located above the stud and close to the stud.
The disconnecting switch according to claim 1, further comprising: a movable contact energy storage device, wherein the movable contact energy storage device comprises an energy storage rotating member and an energy storage abutting rod, wherein the energy storage rotating member rotates and sets On the base, the energy storage rotating member is provided with a first extending arm and a second extending arm, the rotating sleeve of the handle is provided with a long groove, and the end of the first extending arm is disposed in the long groove, The end of the second extension arm is hinged with the upper end of the energy storage abutting rod, and the energy storage abutting rod is disposed between the two limiting ribs of the base, and the two side walls of the long groove symmetry can resist when the handle rotates An extending arm rotates to drive the energy storage rotating member to rotate, the energy storage rotating member rotates to drive the second extending arm to swing, and the second extending arm swings to realize the energy storage resisting rod to move up and down, and the movable contact bracket is provided with The energy storage bar is opposite to the corresponding bump at the lower end of the rod. When the isolating switch is disconnected, the bump is spaced apart from the lower end of the energy storage resisting rod. During the closing process of the isolating switch, the bump gradually approaches from the separation until it interferes with the energy storage resisting rod. The side of the lower end, at this time the handle continues Rotating and moving the contact bracket stops rotating, and finally the handle rotation is about to be in place. When the energy storage resisting lever is about to be pushed to the highest position by the energy storage rotating member, the convex block is released by the side of the lower end of the storage rod, and the movable contact bracket is driven. The moving contact rotates quickly to achieve closing.
The isolating switch according to claim 2, wherein the energy storage rotating member is further provided with a third positioning arm, the third positioning arm is curved, and the end portion is provided with a positioning circular protrusion, the base The positioning rib is disposed on the positioning rib, and two notches for accommodating the circular protrusion are disposed on the positioning rib. When the isolating switch is opened or closed, the circular protrusion is disposed in one of the notches, The width of the long groove is greater than the thickness of the first extension arm.
The isolating switch according to claim 1 or 2, wherein the lower end of the movable contact bracket is provided with a mounting through hole or a slot, and the movable contact bracket is provided with a notch on one side of the protruding post, the notch and the mounting The through hole or the slot is arranged through, the upper end of the movable contact is provided with a hanging hole, the upper end of the movable contact is inserted into the mounting through hole or the slot and the hanging hole is exposed from the notch, and the base and the movable contact bracket are A tension spring is arranged, one end of the tension spring is fixed on the base, and the other end is hung in the hanging hole.
The isolating switch according to claim 1 or 2, wherein the movable contact bracket is disposed on one side of the protruding post with a spring seat, and the base is provided with a spring fixing seat, and one end of the spring abuts against the spring seat The other end is in contact with the spring mount.
The isolating switch according to claim 4, wherein the movable contact bracket is disposed on one side of the protruding post with a spring seat, the base is provided with a spring fixing seat, and one end of the spring abuts against the spring seat, and One end is in contact with the spring mount, and the spring and the tension spring are respectively located on both sides of the movable contact.
The disconnecting switch according to claim 1 or 2, wherein an indicator block is disposed above the movable contact bracket, and the base is provided with a through hole for observing the indicating block.
The disconnecting switch according to claim 4, wherein an indicator block is disposed above the movable contact bracket, and the base is provided with a through hole for observing the indicating block.
The disconnecting switch according to claim 5, wherein an indicator block is disposed above the movable contact bracket, and the base is provided with a through hole for observing the indicating block.