An automatic switch for an electric switch machine

Abstract

The present invention relates to the field of mechanical technology, and discloses an automatic switch for an electric switch machine, which includes an enclosure, electrical components assembled in the enclosure, and a braking component that cooperates in the enclosure and drives the electrical components to form a cyclic path / open circuit. Among them: the enclosure includes a base, the base has a basic part and an inclined part, the basic part is provided with wire post holes arranged in a row, and the inclined part forms an activity cavity; the electrical components include wire posts adapted to the wire post holes and contact pieces fixed on the wire posts, the contact pieces include symmetric left and right contact pieces, and the left and right contact pieces extend into the activity cavity and form a movement area; the braking component includes a rotating shaft, a hinge, an insulating part, and a spring. The insulating part is arranged on the front surface of the hinge. The hinge has an ear part and a hollow part with an opening downward. The rotating shaft passes through the ear hole of the ear part and positions the hinge below the left and right elastic pieces in the activity cavity through an adapted rotating shaft hole, thereby solving the technical problem of closed and non-contact automatic opening and closing, and achieving the effect of improving the product quality and service life.

Description

Technical Field

[0001] The present invention relates to the field of mechanical technology, and particularly provides an automatic switch for an electric switch machine. Background Art

[0002] In the prior art, the working principle of the automatic switch of an electric switch machine is to achieve disconnection and closing through two working positions of the displacement of a metal column (please refer to the Chinese patent CN 107878502 A published on April 6, 2018). Although this structural configuration is simple and direct, there are many defects: First, when the switch is in long-term (long-time) operation, the surface of the parts wears seriously, and it is necessary to regularly check and clean the debris; Second, the contacts of the switch are generally in an exposed state, and the surface will be attached with lubricating oil condensate in the transmission mechanism and dust of the switch machine to form a non-conductive film layer, which will cause poor contact of the switch. Summary of the Invention

[0003] To solve the above technical problems, the main object of the present invention is to provide an automatic switch for an electric switch machine.

[0004] To achieve the above object, the technical solution applied in the present invention is as follows:

[0005] An automatic switch for an electric switch machine is provided, which includes a closed body, an electrical component assembled in the closed body, and a braking component that cooperates in the closed body and drives the electrical component to form a circulating path / open circuit, wherein:

[0006] The closed body includes a base and a cover plate. The base has a basic part and an inclined part. The basic part is arranged with line post holes penetrating up and down. The upper surface of the inclined part is a cover plane, and the lower surface is an inclined surface. The cover plane is hollowed out downward to form a movable cavity. Through holes for left and right rotating shafts are formed on both sides of the movable cavity, penetrating the left and right sides of the inclined part. The cover plate covers the movable cavity;

[0007] The electrical component includes a terminal adapted to the line post hole and a contact piece fixed on the terminal. The contact piece includes symmetric left and right contact pieces. The left and right contact pieces respectively include left and right elastic pieces and left and right contact parts. The left elastic piece and the right elastic piece are located in the movable cavity and form a movement area therewith. The left contact part and the right contact part are bent towards each other and abutted to form a path;

[0008] The braking component includes a rotating shaft, a hinge, an insulating part, and a spring. The insulating part is vertically arranged on the front surface of the hinge. The hinge has a hollow part formed by an ear part and a convex part with an opening downward. The ear part has an ear hole. The rotating shaft passes through the ear hole and positions the hinge below the left and right elastic pieces in the movable cavity by fitting the two ends to the left and right rotating shaft holes on both sides, so that the insulating part is in the movement area. The spring abuts between the hollow part and the bottom of the movable cavity, so that the hinge drives the insulating part to displace under the action of the spring, thereby separating the abutted left and right contact parts to form an open circuit.

[0009] Further preferably, the base portion has a wiring surface, the wire post holes are arranged on the wiring surface, a notch is formed on one side of the base portion close to the movable cavity, and the bottom surface of the notch is horizontal with the wiring surface.

[0010] Further preferably, the notch has two side surfaces, left and right slits are respectively opened downward along the two side surfaces of the notch, the left and right slits extend linearly towards the base portion and stop at the side surface relative to the inclined portion without penetrating, and the depth of the downward opening stops at the inclined surface without penetrating.

[0011] Further preferably, screw holes are distributed on the cover plane, the cover plate is provided with cover screw holes corresponding to the screw holes, and the cover plate is tightened with the screw holes by screws passing through the cover screw holes, so as to form a closed whole for the inclined portion.

[0012] Further preferably, the wire post includes a screw rod portion, a nut adapted to the threaded section of the screw rod portion, a washer and an elastic washer adapted to the threaded section and pressed by the nut, and the threaded section is exposed on the wiring surface through the wire post hole.

[0013] Further preferably, the left contact piece further has a left base portion and a left foot portion, wherein:

[0014] The left foot portion is perpendicular to the left side above the left base portion and has a left perforation adapted to the wire post, the left elastic piece is on the front side of the left base portion and is connected to the left contact portion, the left elastic piece is formed with a left arc portion or a left inclined portion, and the left contact portion is connected to the free end of the left arc portion or the free end of the left inclined portion;

[0015] The right foot portion further has a right base portion and a right foot portion, wherein:

[0016] The right foot portion is perpendicular to the right side above the right base portion and has a right perforation adapted to the wire post adjacent to the wire post, the right elastic piece is on the front side of the right base portion and is connected to the right contact portion, the right elastic piece is formed with a right arc portion or a right inclined portion, and the right contact portion is connected to the free end of the right arc portion opposite to the free end of the left arc portion or is connected to the free end of the right inclined portion opposite to the free end of the left inclined portion.

[0017] Further preferably, the left base portion is adapted to the left slit so that the left elastic piece is in the movable cavity; the right base portion is adapted to the right slit relative to the left base portion so that the right elastic piece is in the movable cavity, and the movement area is the dynamic area between the left elastic piece and the right elastic piece.

[0018] Further preferably, the hinge has a base plate, ears are formed in a protruding form on the rear side of the base plate, a standing seat is provided on the front surface of the base plate, an internal threaded hole is provided at the center of the standing seat, and the insulating portion is sleeved around the standing seat and is adapted to the internal threaded hole by screws, so as to fix the insulating portion on the base plate.

[0019] Further preferably, a convex portion is formed on the base plate, and a hollow portion opening is formed on the back surface of the base plate.

[0020] Further preferably: It further includes a permanent magnet. When the permanent magnet is translated or rotated to be close to or away from the inclined part, the magnetic force on the substrate is changed to drive the displacement of the insulating part on the movable leaf, and the on-off state of the left contact part and the right contact part is changed due to the displacement of the insulating part.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: First, the structure is simple, easy to manufacture, with low manufacturing cost and small volume; second, through non-contact magnetic force drive, the positive pressure contact wear is avoided, thus improving the service life of the product; third, the sealing is good, and the internal parts will not be affected by external dust, water vapor, and oil stains, greatly improving the environmental resistance of the switch; fourth, when the switch works for a long time, the influence of wear debris on the function realization is avoided, reducing the product maintenance cost. Brief Description of the Drawings

[0022] The following will further illustrate the above-mentioned characteristics, technical features, advantages and their implementation manners in a clear and understandable manner in combination with the drawings of the preferred embodiments.

[0023] Figure 1 It is a three-dimensional schematic diagram of this embodiment.

[0024] Figure 2 It is an exploded schematic diagram of this embodiment.

[0025] Figure 3 It is a three-dimensional schematic diagram highlighting the interior of this embodiment (where the left contact part and the right contact part form a circuit).

[0026] Figure 4 It is a top view schematic diagram highlighting the interior of this embodiment (where the left contact part and the right contact part form a circuit).

[0027] Figure 5 It is a three-dimensional schematic diagram highlighting the interior of this embodiment (where the left contact part and the right contact part form an open circuit).

[0028] Figure 6 It is a top view schematic diagram highlighting the interior of this embodiment (where the left contact part and the right contact part form an open circuit).

[0029] Figure 7 It is a three-dimensional schematic diagram of the brake part in this embodiment.

[0030] Figure 8 It is a three-dimensional schematic diagram of the brake part from another perspective in this embodiment.

[0031] Figure 9 It is a schematic diagram simulating the distance of the permanent magnet moving to the switch in this embodiment. Detailed Embodiment

[0032] In the following description, specific details such as specific system architectures and technologies are presented for purposes of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obscuring the description of the present application.

[0033] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0034] For the sake of simplicity of the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, for the sake of simplicity and easy understanding of the drawings, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is labeled. In this document, "one" not only means "only this one" but also can mean "more than one" situation.

[0035] It should be further understood that the term "and / or" used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] In the embodiments shown in the drawings, the indication of directions (such as up, down, left, right, front, and back) is used to explain that the structures and movements of various components of the present invention are not absolute but relative. When these components are in the positions shown in the drawings, these explanations are appropriate. If the descriptions of the positions of these components change, then the indication of these directions also changes accordingly.

[0037] In addition, in the description of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, and other embodiments can also be obtained.

[0039] As a specific embodiment, such as Figures 1 to 9As shown in the figure, an automatic switch of an electric switch machine is provided. The automatic switch in the figure includes an enclosure 10, an electrical component 20 assembled in the enclosure 10, and a braking component 30 that cooperates in the enclosure 10 and drives the electrical component 20 to make a cyclic connection / disconnection. Among them:

[0040] The enclosure 10 includes a base 11 and a cover plate 12. The base 11 has a basic part 111 and an inclined part 112. Among them: The basic part 111 has a wiring surface 1111, and wire post holes 1112 through which the wiring posts 21 penetrating up and down are arranged on the wiring surface 1111. The inclined part 112 relative to the wiring surface 1111 has a cover plane 1122 higher than the wiring surface 1111. The lower surface relative to the cover plane 1122 is an inclined surface 1121 inclined towards the basic part 111. The cover plane 1122 is hollowed out into a movable cavity 1124 towards the inclined surface 1121. The movable cavity 1124 forms a notch 1126 on the side close to the basic part 111. The bottom surface of the notch 1126 is horizontal with the wiring surface 1111. Left and right slits (not marked) are respectively opened downward along both sides of the notch 1126. The left and right slits extend linearly towards the basic part 111 and stop at the side surface relative to the inclined part 112 without penetrating, and the depth of the downward opening stops at the inclined surface 1121 without penetrating. In this example, screw holes 1123 are distributed around the cover plane 1122. Corresponding rotatable shaft holes 1125 that penetrate the movable cavity 1124 are formed on the left and right sides (not marked) of the inclined part 112; The cover plate 12 is a flat plate structure that completely covers the cover plane 1122, and includes a block 121 that fits and closes the notch 1126. Cover screw holes (not marked) corresponding to the screw holes 1123 are provided along the periphery of the cover plate 12. A number of screws 122 are tightened through the cover screw holes and the screw holes 1123, so that the inclined part 112 forms a closed whole;

[0041] The electrical component 20 includes a terminal 21 and a contact piece 22. Among them: The terminal 21 includes a screw part 211 and a nut 212 that fits the threaded section of the screw part 211; The contact piece 22 includes a symmetric left contact piece 221 and a right contact piece 222. The left contact piece 221 has a left base part 2211, a left foot part 2212, a left elastic piece 2213, and a left contact part 2214. Among them: The left foot part 2212 is perpendicular to the left side above the left base part 2211 and has a left perforation 2215. The left elastic piece 2213 is located on the front side of the left base part 2211 and connects the left contact part 2214. The left elastic piece 2213 is formed with a left arc part (not labeled). The left contact part 2214 connects to the free end of the left arc part; The right foot part 2222 is perpendicular to the right side above the right base part 2221 and has a right perforation 2225. The right elastic piece 2223 is located on the front side of the right base part 2221 and connects the right contact part 2224. The right elastic piece 2223 is formed with a right arc part (not labeled). The right contact part 2224 connects to the free end of the right arc part. In this example, the screw part 211 is inserted into the terminal hole 1112 from the bottom of the base part 111, so that the threaded section passes through the terminal hole 1112 and protrudes from the connection surface 1111. The left contact piece 221 is sleeved on the threaded section through the left perforation 2215, so that the left base part 2211 falls into the left gap, and the left elastic piece 2213 is located in the movable cavity 1124; The right contact piece 222 and the left contact piece 221 are symmetric components. The right contact piece 222 is sleeved on the threaded section of the adjacent other screw part 211 through the right perforation 2225, so that the right base part 2221 falls into the right gap, and the right elastic piece 2223 is located in the movable cavity 1124. The left elastic piece 2213 and the right elastic piece 2223 form a movement area y in the movable cavity 1124, so that the left contact part 2214 abuts against the right contact part 2224 to form a conductive path (please refer to Figure 3 and Figure 4 );

[0042] The braking member 30 includes a rotating shaft 31, a hinge 32, an insulating portion 33, and a spring 34, where: The hinge 32 has a substrate 321. On the rear side of the substrate 321, ears 3211 protrude from the substrate. An ear hole 3231 adapted to the rotating shaft 31 is formed in the ears 3211; On the front surface of the substrate 321, there is a standing seat 322. The center of the standing seat 322 has an internal threaded hole 3221. The insulating portion 33 is sleeved around the standing seat 322 and is adapted to the internal threaded hole 3221 by a screw 332 to firmly fix the insulating portion 33 on the substrate 321. The substrate 321 has a convex portion 323. The convex portion 323 forms a hollow portion 324 and the opening of the hollow portion 324 is on the back surface of the substrate 321. The spring 34 is arranged in the hollow portion 324 and its upper end abuts against the top surface of the hollow portion 324. The lower end of the spring 34 protrudes out of the opening. During assembly, the braking member 30 is positioned in the movable cavity 1124 by the rotating shaft 31 adapted to the rotating shaft hole 1125, so that the substrate 321 can perform an upward / downward sector movement below the left elastic piece 2213 and the right elastic piece 2223 in the movable cavity 1124. At this time, the insulating portion 33 on the substrate 321 is in the movement area y close to the left contact portion 2214 and the right contact portion 2224. In this example, the lower end of the spring 34 arranged in the hollow portion 324 abuts against the bottom of the movable cavity 1124, thereby elastically propping up the substrate 321 and causing the insulating portion 33 on the substrate 321 to displace and push open the left elastic piece 2213 and the right elastic piece 2223, so that the originally abutting and conducting left contact portion 2214 and right contact portion 2224 are separated to form a non-conducting open circuit (please refer to Figure 5 and Figure 6 ).

[0043] In the above embodiment (please refer to Figure 9 in combination), the automatic switch of the electric switch machine drives the hinge 32 to drive the insulating portion 33 to displace through non-contact magnetic force, and through the displacement of the insulating portion 33, it abuts against the inner surfaces of the left elastic piece 2213 and the right elastic piece 2223 close to the left contact portion 2214 and the right contact portion 2224 to prop up and separate the left contact portion 2214 and the right contact portion 2224, thereby realizing the disconnection / connection of the two opposite contacts. In this example, the non-contact magnetic force refers to the magnetic force generated by a permanent magnet (not shown), where: The position of the permanent magnet can be inside the switch or outside the switch. When the permanent magnet is outside, its movement mode can be translation or rotation. By changing the position and angle, the position of the magnetic force action is changed, so as to drive the internal parts (in this example, it refers to the "hinge 32", "insulating portion 33" and "contact piece 22") to displace. The internal parts are reset by using a spring or a torsion spring. When the magnet is inside, through the displacement of the external steel or iron parts, under the action of the magnetic force, the magnet is driven to move or rotate, and then the connection state of the contacts is changed. The parts are reset by using a spring or a torsion spring.

[0044] In the above embodiments, the automatic switch of the electric switch machine is of a fully sealed structure, including (but not limited to) using rubber strips for sealing, adhesive sealing, etc. Since non-contact magnetic drive is adopted, the automatic switch can be made into a fully enclosed structure, and the interior will not be affected by external dust, water vapor, and oil stains, greatly improving the environmental resistance of the switch.

[0045] In the above embodiments, due to the adoption of non-contact magnetic drive, the parts are in a positive-pressure contact without wear, including (but not limited to) the following methods: elastic sheet deformation press-fitting, elastic sheet displacement contact. By means of frictionless contact, the situation of wear and chip shedding of the automatic switch during operation, which affects the realization of normal functions, is avoided.

[0046] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0047] It should be noted that the above embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic switch for an electric switch machine, comprising an enclosure, electrical components assembled in the enclosure, and a braking component that cooperates in the enclosure and drives the electrical components to make a cyclic path / open circuit, characterized in that: Enclosed body, including a base and a cover plate. The base has a basic part and an inclined part. The basic part is arranged with line post holes penetrating up and down. The upper surface of the inclined part is a cover plane, and the lower surface is an inclined surface. The cover plane is hollowed out downward to form a movable cavity. On both sides of the movable cavity, left and right rotating shaft holes penetrating the left and right sides of the inclined part are formed. The cover plate covers the movable cavity; Electrical component, including a terminal post adapted to the line post hole and a contact piece fixed on the terminal post. The contact piece includes symmetric left and right contact pieces. The left and right contact pieces respectively include left and right elastic pieces and left and right contact parts. The left elastic piece and the right elastic piece are located in the movable cavity and form a movement area therewith. The left contact part and the right contact part are bent in opposite directions and abutted to form a path; Braking component, including a rotating shaft, a hinge, an insulating part, and a spring. The insulating part is vertically arranged on the front surface of the hinge. The hinge has a hollow part formed by an ear part and a convex part with an opening downward. The ear part has an ear hole. The rotating shaft penetrates the ear hole and positions the hinge below the left and right elastic pieces in the movable cavity through both ends adapted to the left and right rotating shaft holes, so that the insulating part is in the movement area. The spring abuts between the hollow part and the bottom of the movable cavity, so that the hinge drives the insulating part to displace under the action of the spring, thereby separating the abutted left and right contact parts to form an open circuit.

2. The automatic switch for an electric switch machine according to claim 1, characterized in that: The basic part has a wiring surface. The line post holes are arranged on the wiring surface. A notch is formed on one side of the movable cavity close to the basic part. The bottom surface of the notch is horizontal with the wiring surface.

3. The automatic switch for an electric switch machine according to claim 2, characterized in that: The notch has two side surfaces. Left and right slits are respectively opened downward along the two side surfaces of the notch. The left and right slits extend linearly toward the basic part and stop at the side surface relative to the inclined part without penetrating, and the depth of the downward opening stops at the inclined surface without penetrating.

4. The automatic switch for an electric switch machine according to claim 3, characterized in that: The cover plane is distributed with screw holes. The cover plate is provided with cover screw holes corresponding to the screw holes. The cover plate is tightened with the screw holes by screws passing through the cover screw holes, so as to form a closed whole for the inclined part.

5. The automatic switch for an electric switch machine according to claim 4, characterized in that: The terminal post includes a screw rod part, a nut adapted to the threaded section of the screw rod part, a washer and an elastic washer adapted to the threaded section and pressed by the nut. The threaded section is exposed on the wiring surface through the line post hole.

6. The automatic switch for an electric switch machine according to claim 5, characterized in that: The left contact piece also has a left base part and a left foot part, where: The left foot part is perpendicular to the left side above the left base part and has a left perforation adapted to the terminal post. The left elastic piece is located on the front side of the left base part and is connected to the left contact part. The left elastic piece is formed with a left arc part or a left inclined part. The left contact part is connected to the free end of the left arc part or the free end of the left inclined part; The right foot part also has a right base part and a right foot part, where: The right foot part is perpendicular to the right side above the right base part and has a right perforation adapted to an adjacent terminal post of the terminal post. The right elastic piece is located on the front side of the right base part and is connected to the right contact part. The right elastic piece is formed with a right arc part or a right inclined part. The right contact part is connected to the free end of the right arc part opposite to the free end of the left arc part or is connected to the free end of the right inclined part opposite to the free end of the left inclined part.

7. The automatic switch for an electric switch machine according to claim 6, characterized in that: The left base part is adapted to the left slit, so that the left elastic piece is in the movable cavity; The right base part is adapted to the right slit relative to the left base part, so that the right elastic piece is in the movable cavity. The movement area is the dynamic area between the left elastic piece and the right elastic piece.

8. The automatic switch for an electric switch machine according to claim 7, characterized in that: The hinge has a base plate. The ear part is formed on the rear side of the base plate in a protruding form. A standing seat is arranged on the front surface of the base plate. The center of the standing seat has an internal threaded hole. The insulating part is sleeved on the periphery of the standing seat and is adapted to the internal threaded hole by a screw, so as to fix the insulating part on the base plate.

9. The automatic switch for an electric switch machine according to claim 8, characterized in that: The convex part is formed on the base plate. The hollow part opening is formed on the back surface of the base plate.

10. The automatic switch for an electric switch machine according to claim 9, characterized in that: Further comprising a permanent magnet, when the permanent magnet is translated or rotated to be close to or away from the inclined portion, the magnetic force on the substrate is changed to drive the displacement of the insulating portion on the leaf, and the on-off state of the left contact portion and the right contact portion is changed due to the displacement of the insulating portion.

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