CN1705058A - Circuit control protector - Google Patents

Abstract

The invention relates to a circuit control protector, which pushes and pulls a contact piece to jump by pressing a button to swing, so that a circuit loop is in an ON state or an OFF (OFF) state. The button is connected with a control rod group which comprises a pull rod and a push rod, a contact piece is movably clamped between the pull rod and the push rod, when the button is operated, the button is linked with the control rod group, the pull rod of the control rod group pulls the contact piece or the push rod pushes the contact piece, so that the contact piece jumps to form power-OFF (OFF) or power-ON of a circuit; when the push button is at the power-ON position, the push rod rotates for an angle to form a bounce space Delta S between the push rod and the contact piece, the bounce space Delta S provides a space for the contact piece to freely move and jump OFF in the direction of the push rod, when the current is overloaded, the contact piece is heated to deform and reversely bounce, the contact piece is deformed and smoothly jumps OFF, and the complete power-OFF (OFF) state of a circuit loop is formed to ensure the safety of power utilization.

Description

Circuit Control Protector

technical field

The invention relates to a circuit control protector, which utilizes a button to link a control rod group. When the power is on (ON), the push rod of the control rod group is displaced and rotated so that the end of the push rod is in contact with the contact piece. A bouncing space ΔS is formed between them. When the current is overloaded, the bouncing space ΔS provides a path for the contact piece to deform and bounce in reverse, and the contact piece can jump off smoothly, forming a complete power-off (OFF) state of the circuit loop.

Background technique

The operation of the power control switch is mainly to perform two action strokes of power-on (ON) and power-off (OFF) of the current loop. In addition to performing two functions of power-on (ON) and power-off (OFF), many current switch structures also have the function of automatically tripping and power-off when the current is overloaded and overheated, so as to prevent the fuse or breaker of the current circuit from not responding in real time when the current is overloaded. Risk of blackout or tripping.

There are too many patents for various conventional power control switches, such as US Patent No. 5,262,748 filed by the applicant himself, and other US Patent Nos. 4,167,720, 4,937,548, 5,223,813, 5,451,729, 5,558,211... There are too many to enumerate, but these prior patents all have common shortcomings, as follows:

1. There are many linked components, and the linked stroke is complex, resulting in a non-real-time action relationship between the button and the terminal components, which also increases the manufacturing cost.

2. The actuation relationship is uncertain, which increases the chance of failure, which is not conducive to the safety considerations of consumers.

3. When the current overload circuit is overheated, the contact shrapnel cannot trip off the power in real time or the trip is incomplete, so that the circuit is still in the current conduction state, and the circuit continues to overheat and cause danger.

4. When the current overload circuit is overheated, the contact shrapnel is in a semi-tripped state, and when the contact shrapnel cools down, it jumps back to the energized state, and sparks are formed after repeated power-on and power-off, causing danger; and the electronic and electrical equipment in the current loop are due to Repeated power-on and power-off will make the machine unable to operate normally, shorten the service life, and even damage it so that it cannot be used.

In order to effectively implement the interlocking action relationship of the internal components of the power control switch, simplify the power control switch components to reduce production costs, and ensure that it can immediately react to trip the power when the current is overloaded to enhance the safety of power consumption, the continuous research on the structure of the power control switch Improvement has become an important common topic for manufacturers.

Contents of the invention

The present invention aims to solve the disadvantages of conventional power control switch linkage structure, such as complex components, high production cost, indirect linkage relationship, slow response of linkage stroke and many faults in operation of power control switch, especially to solve the problems of conventional power control switch on When the current is overloaded and overheated, it is impossible to trip the power-off (OFF) in real time, or the trip is incomplete, resulting in an overheating state where the circuit continues to flow; and when solving overload and overheating, the contact shrapnel is in a semi-tripped state, and when the contact shrapnel cools down Sometimes it jumps back to the power-on state, and continues to repeatedly power on and off to form sparks, causing dangerous problems.

The present invention is a circuit control protector, which mainly includes a box body, a button, a contact piece, and a control rod group; wherein, the button group is connected with a control rod group, and the control rod group includes a pull rod and A push rod, a contact piece is movably clamped between the pull rod and the push rod. When in action, the button links the control rod group, and the pull rod of the control rod group pulls the contact piece or the push rod pushes the contact piece to make the contact The power-off (OFF) or power-on (ON) of the circuit is formed by the jump of the piece; when the button is in the power-on (ON) position, the push rod rotates an angle, so that a section of bounce space ΔS is formed between the end of the push rod and the contact piece , the bouncing space ΔS provides a space for the free displacement and jumping of the contact piece to the direction of the push rod. Jump off smoothly to form a complete power-off (OFF) state of the circuit loop.

The present invention is a circuit control protector, the main purpose of which is to movably clamp a contact piece through the pull rod and the push rod of the control rod group. The pull rod pulls the contact piece or the push rod pushes the contact piece to make the contact piece jump to form the power-off (OFF) or power-on (ON) of the circuit; when the button is in the power-on (ON) position, the push rod rotates an angle, so that A bouncing space ΔS is formed between the end of the push rod and the contact piece to provide a space for the contact piece to freely displace and jump in the direction of the push rod. When the current is overloaded, the contact piece is heated and deformed reversely and reversely jumps out without restriction. Form a complete power-off (OFF) state of the circuit loop to achieve the purpose of electricity safety.

Another object of the present invention is that, when the current overload circuit is overheated, the contact piece utilizes the bouncing space ΔS provided by the control lever group to jump off freely, responds quickly, and is in a complete tripping power-off (OFF) state, and the contact piece does not It will jump back to the energized (ON) state again when cooling down, and will not continue to repeatedly energize and power off to form contact sparks and cause the risk of wire fire.

The extended purpose of the present invention is to simplify the overall interlocking components of the power control switch, which is easy to manufacture and assemble, effectively reduces the manufacturing cost, prolongs the service life of the power control switch structure, and reduces the expenditure of consumers.

Description of drawings

Fig. 1 is the composite sectional view of the embodiment of the present invention, and it shows the state of the power failure (OFF) of the embodiment of the present invention;

Fig. 2 is the composite cross-sectional view of the embodiment of the present invention, it shows the state of the electrification (ON) of the embodiment of the present invention;

Fig. 3 is a combined cross-sectional view of the embodiment of the present invention, which shows the embodiment of the present invention when the current is overloaded in the case of energization (ON), the contact piece reversely bends and jumps off, forming a power-off (OFF) state;

FIG. 4 is a partially exploded perspective view of the embodiment of the present invention, which shows the relative combination state of the button, the control rod set and the contact piece.

in the picture

1 box body 11 first contact terminal

12 Second contact terminal 121 Second contact

13 groove 14 hollow column

2 button 21 connection part

22 Button hole 3 Contact piece

31 First Contact 32 Button Hole

33 Arc shrapnel 331 Convex piece

332 Notch 34 Adjusting screw

4 control rod assembly 41 pull rod

411 Cross bar 412 Connecting part

42 push rod 421 first end rod

422 second end rod 43 turntable

431 Shaft column 432 First piercing

433 Second perforation ΔS Bounce space

Detailed ways

In order to disclose the purpose, features and effects of the present invention in detail, now through the following preferred specific embodiments, in conjunction with the attached drawings, the present invention is described in detail as follows:

As shown in Figures 1-3, it is a combined cross-sectional view of the embodiment of the present invention, which shows the power-off (OFF), power-on (ON) and current overload of the embodiment of the present invention. ) state, Fig. 4 is a partial three-dimensional exploded view of an embodiment of the present invention; a circuit control protector of the present invention mainly includes a box body 1, a button 2, a contact piece 3, and a control lever Group 4; where,

The box body 1 is hollow, with an opening above it, and at least two contact terminals are arranged on the bottom surface of the box body 1. In this embodiment, there are two contact terminals, which are respectively the first and second contact terminals 11 and 12. One end of the contact sheet 3 is fixedly assembled on the bending part above the first contact terminal 11, and a second contact point 121 is combined above the second contact terminal 12; in addition, a groove 13 and a hollow column 14 are recessed on the inner side of the box body 1, The groove 13 runs slightly vertically up and down.

The button 2 is a cap-shaped body, and the button 2 is movably pivoted to the opening above the box body 1, so that the button 2 can swing with the pivot joint as the axis; A button hole 22 is provided.

The contact piece 3 is generally an elastic metal sheet body, which is formed into a curved arc and can jump to the two sides of the sheet body. When the contact piece 3 is heated, it deforms and bends in reverse and bounces to the other side; The fixed group is set on the first contact terminal 11, and the other end is a free end, on which there is a first contact 31; the contact piece 3 can also be a composite metal sheet; refer to Fig. 1-Fig. 3 again, the embodiment of the present invention A button hole 32 can be set at the free end of the contact piece 3, and the button hole 32 is movably connected to a protruding piece 331 of an arc-shaped shrapnel 33, and the other end of the arc-shaped shrapnel 33 is movably embedded in the box body 1 with a gap 332. Adjustment screw 34; by adjusting the adjustment screw 34, the arc-shaped elastic piece 33 can have an appropriate elastic force, and when the contact piece 3 bounces to one side, it can be bent and positioned surely.

The control lever assembly 4 includes a pull rod 41 and a push rod 42; wherein:

The cross bar 411 at one end of the pull rod 41 is movably hooked under the free end of the contact piece 3, and one end of the pull rod 41 is a connecting portion 412. In the embodiment of the present invention, the connecting portion 412 is a transverse bar. Referring to FIG. 4, the connecting portion The (rod) 412 is inserted and pivotally connected to the connecting portion 21 of the button 2 in the fastening hole 22, so that the pull rod 41 can rotate around the pivoted connecting portion (rod) 412 as the axis; a protruding rod is provided in the middle of the pull rod 41 413, the protruding rod 413 is embedded and assembled in the elongated first perforation 432 of a turntable 43, and as the turntable 43 rotates, the protruding rod 413 is displaced in the first perforation 432, as shown in Fig. 4 and Fig. 1 and Fig. 2 .

The push rod 42 is located above the contact piece 3, and the push rod 42 is provided with a first end rod 421, and the first end rod 421 is pivotally connected in the second through hole 433 of the turntable 43, so that the push rod 42 can be formed by the first end rod 421. The axis rotates, and the push rod 42 is additionally provided with a second end rod 422 .

When assembling, the protruding rod 413 of the pull rod 41 is embedded and assembled in the elongated first perforation 432 of a turntable 43, and as the turntable 43 rotates, the protruding rod 413 is displaced in the first perforation 432, see Fig. 4 and Fig. 1 , as shown in Figure 2, the second end rod 422 of the push rod 42 is inserted in the groove 13 of the box body 1, and the turntable 43 is provided with a shaft column 431, and the shaft column 431 is inserted in the hollow column 14 of the box body 1 , in this embodiment, the shaft 431 is not located at the center of the turntable 43 .

For the implementation of the present invention in general power-on (ON) and power-off (OFF), please refer to Fig. 1, when the right end of the button 2 is pressed downward, the left end of the button 2 is upward, so that the cross bar at the lower end of the pull rod 41 of the control rod group 4 411 upward, see also FIG. 4 , pull up the contact piece 3 to make the first contact 31 on the contact piece 3 separate from the second contact 121 , and become a power-off (OFF) state.

When the left end of the button 2 is pressed downward, the pull rod 41 of the control lever group 4 is downward, and the protruding rod 413 pushes the elongated hole 432 of the turntable 43 downward, so that the turntable 43 rotates counterclockwise with the shaft 431 as the axis. The perforation 433 makes the push rod 42 move downward, the second end rod 422 of the push rod 42 moves downward in the groove 13 of the box body 1, the second end rod 422 contacts and pushes the contact piece 3 to bend and bounce downward, Make the first contact point 31 on the contact piece 3 contact the second contact point 121 downwards to be in an ON state, as shown in FIG. 2 .

According to the above, press the button 2 repeatedly to swing, so that the control rod group 4 and the button 2 act synchronously, the pull rod 41 of the control rod group 4 pulls the contact piece 3 to bend and jump upward, or the push rod 42 pushes the contact piece 3 to bend downward, so that The circuit loop forms a de-energized (OFF) or energized (ON) state.

The feature of the present invention is mainly that: the action displacement of the pull rod 41 and the push rod 42 of the control rod group 4, when the button 2 is in the position of circuit conduction (ON), as shown in Figure 2, the push rod of the control rod group 4 The first end rod 421 of the rod 42 rotates downward and rightward with the rotation of the second through hole 433 of the turntable 43, and the second end rod 422 of the push rod 42 is restricted in the groove 13 of the box body 1 It cannot be moved downward or rightward. The push rod 42 rotates clockwise at an angle and is in a nearly horizontal tilted state, so that a section of bounce space ΔS is formed between the push rod 42 and the contact piece 3. The bounce space ΔS provides Space for free displacement and jumping of the contact piece 3 in the direction of the push rod; when the current is overloaded, the contact piece 3 is heated and deformed and bounces in the opposite direction (upward), and is not limited by the clamping of the push rod 42 of the control rod group 4, the contact piece 3 is deformed and escaped smoothly, forming a complete power-off (OFF) state of the circuit loop, as shown in FIG. 3 .

The actuation process of the present invention is simplified and rapid; when the current is overloaded, a bouncing space ΔS is formed between the push rod 42 of the control rod group 4 and the contact piece 3, providing the contact piece 3 with thermal deformation and free reverse bounce to form a circuit The complete power-off (OFF) state of the circuit can indeed achieve the safety of electricity use.

From the above, the component structure and action relationship of the present invention have practical effects, and are new designs never seen before, with functional and progressive properties.

The present invention has been described in detail above, and the above description is only a preferred embodiment of the present invention, and cannot limit the implementation scope of the present invention. All equivalent changes and modifications made according to the application scope of the present invention should still fall within the scope of the patent of the present invention.

Claims (5)

1. A circuit control protector, characterized in that it mainly includes a box body, a button, a contact piece, and a control lever assembly; wherein, The box body is hollow, with an opening above it, and at least two contact terminals are arranged on the bottom surface of the box body; The button is movably pivoted to the opening above the box body, and the button can swing with the pivoting part as the axis; the button is provided with a connecting part; The contact sheet is an elastic metal sheet body, which bends and jumps to two sides. When the contact sheet is heated, it deforms and bends in the opposite direction and bounces to the other side; one end of the contact sheet is fixedly arranged on a contact terminal. The other end of the sheet is provided with a first contact; The control rod set includes a pull rod and a push rod; wherein: One end of the pull rod is movably hooked under the free end of the contact piece, and the other end of the pull rod is a connecting portion, which is pivotally connected to the connecting portion of the button so that the pull rod can rotate at the pivot joint; The push rod is located above the contact piece, and the push rod is pivotally connected to the aforementioned pull rod so that the push rod can rotate; During implementation, press the button repeatedly to swing, so that the control rod group and the button act synchronously, the pull rod of the control rod group pulls the contact piece to bend and jump upward, or the push rod pushes the contact piece to bend downward, so that the circuit loop forms a power failure (OFF) Or power on (ON) state; It is characterized in that: through the action displacement of the button and the pull rod and push rod of the control rod group, when the button is in the position of circuit conduction (ON), the push rod of the control rod group rotates an angle, so that the push rod and the push rod A section of bouncing space ΔS is formed between the contact pieces, and the bouncing space ΔS provides a space for the contact piece to freely displace and jump in the direction of the push rod; when the current is overloaded, the contact piece is heated and deformed to bounce back without restriction, and the contact piece can be deformed And jump off smoothly, forming a complete power-off (OFF) state of the circuit loop. 2. The circuit control protector according to claim 1, characterized in that at least two contact terminals provided on the box body are respectively the first and second contact terminals, and the bending part above the first contact terminal is provided with a contact One end of the sheet is combined with a second contact above the second contact terminal. 3. The circuit control protector according to claim 1, characterized in that, A connection part is provided below the button, and the connection part is provided with a buckle hole; One end of the pull rod of the control rod set is a connecting portion, and the connecting portion is a rod, which is inserted into the fastening hole of the connecting portion pivotally connected to the button. 4. The circuit control protector according to claim 1, characterized in that, A groove and a hollow column are recessed on the inner side of the box body, and the groove is slightly vertical up and down; A protruding rod is arranged in the middle of the pull rods of the control rod group, and the protruding rod is embedded and assembled in the first perforation of a turntable. As the turntable rotates, the protruding rod is displaced in the first perforation; The push rod of the control lever assembly is provided with a first end rod pivotally connected to the second through hole of the turntable, so that the push rod can be rotated with the first end rod as the axis, and the push rod is additionally provided with a second end rod; When assembling, the protruding rod of the above-mentioned pull rod is inserted into the first through hole of the turntable. As the turntable rotates, the second end rod of the push rod is inserted into the groove of the box body. Inserted in the hollow column of the box body; Through the action displacement of the pull rod and the push rod of the button and the control rod group, when the button is in the position of circuit conduction (ON), the first end rod of the push rod of the control rod group follows the second perforated part of the turntable. Rotation displacement, the second end rod of the push rod is restricted in the groove of the box body and cannot follow the displacement, the push rod rotates an angle, so that a section of bouncing space ΔS is formed between the push rod and the contact piece, the bouncing space ΔS Provide space for free displacement and tripping of the contact piece in the direction of the push rod; when the current is overloaded, the contact piece is heated and deformed to bounce back, without restriction, and jumps off smoothly, forming a complete power-off (OFF) state of the circuit circuit. 5. The circuit control protector according to claim 4, characterized in that, the shaft column provided on the turntable is not located at the center of the turntable.

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