阅读说明：本技术 继电器 (Relay with a movable contact ) 是由 孙璐 于 2019-10-30 设计创作，主要内容包括：本发明提供了一种气动式高压继电器,该气动式高压继电器包括气缸支架组件、电极支架组件、弹簧支架组件、阀杆支架组件。本发明的气动式高压继电器作为电路和控制系统中的重要元件,需要拥有良好可靠且稳定的工作性能,本发明的气动式继电器的结构等基础设计作为继电动作实现了可靠工作的保证。(The invention provides a pneumatic high-voltage relay which comprises a cylinder support assembly, an electrode support assembly, a spring support assembly and a valve rod support assembly. The pneumatic high-voltage relay is used as an important element in a circuit and a control system and needs to have good, reliable and stable working performance, and the reliable work is guaranteed by using basic designs such as the structure of the pneumatic relay and the like as relay action.)

1. The utility model provides a relay mechanism, relay mechanism include cylinder bracket component, electrode bracket component, spring bracket component, valve rod bracket component, a serial communication port, cylinder bracket component with electrode bracket component all set up on base (1), valve rod bracket component be located cylinder bracket component's top, valve rod bracket component assemble in spring bracket component on, electrode bracket component be used for support electrode (10), spring bracket component fix elastic component (7) between plastic slab (13) and metal sheet (14), the centre of base (1) be equipped with the connecting hole.

2. The relay mechanism according to claim 1, wherein the cylinder bracket assembly comprises a front plate (2), a rear plate (3), an upper block (4) and a lower block (5), the front plate (2), the rear plate (3), the upper block (4) and the lower block (5) enclose a rectangular area, the cylinder is located in the rectangular area, stepped grooves are formed in the middle portions of the upper block (4) and the lower block (5), the ejector rod of the cylinder penetrates through the surface of the upper block (4), and the bottom of the cylinder penetrates through the stepped grooves of the lower block (5) and is fixed in the connecting hole of the base (1).

3. The relay mechanism according to claim 1, wherein the stem support assembly comprises an anti-tilt post (6), a connecting rod (16), an extension rod (15), the length of the connecting rod (16) is greater than that of the anti-tilting upright post (6), both ends of the connecting rod (16) are provided with connecting screw holes, wherein the anti-tilting upright post (6) is connected to the top of the cylinder bracket assembly, the middle part of the anti-tilting upright post (6) is provided with a sliding through hole, a mandril of the air cylinder can be accommodated in the sliding through hole of the anti-tilting upright post (6), the bottom of the connecting rod (16) passes through the sliding through hole of the anti-tilting upright post (6) and is connected with the ejector rod of the cylinder, the extension rod (15) is connected to the top of the connecting rod (16).

4. The relay mechanism according to claim 1, wherein the electrode support assembly comprises two support pillars (12), two support pillars (12) are connected to the base (1) and two support pillars (12) are distributed in parallel at intervals, an electrode table (11) is connected to the same position of each of the two support pillars (12), an electrode (10) is connected to the same position of each of the two support pillars (12), the electrode (10) and the electrode table (11) are arranged in close proximity, an auxiliary plate (17) is connected to the rear of each of the support pillars (12), the auxiliary plate (17) is connected to the base (1), and a plurality of grooves are formed in each of the support pillars (12).

5. The relay mechanism according to claim 1, wherein said spring bracket assembly comprises a metal plate (14) and a plastic plate (13), a metal assembling hole is formed in the middle of said metal plate (14), a plastic connecting hole is formed at each end of said plastic plate (13), a plastic assembling hole is formed in the middle of said plastic plate (13), said metal plate (14) and said plastic plate (13) are connected by a supporting means, said supporting means are 2 sets, each set of said supporting means comprises a connecting screw, a convex flange (8), and a frame flange (9), a flange through hole is formed in the middle of said frame flange (9), one end of said connecting screw passes through said plastic connecting hole and said flange through hole to be connected with a fastening nut, a cylindrical boss is formed in the middle of said convex flange (8), the cylinder boss on be equipped with the boss connecting hole, connecting screw's the other end assembly be in the boss connecting hole in, convex flange (8) attached in metal sheet (14) surface, frame flange (9) attached in plastic slab (13) surface, elastic component (7) suit in connecting screw on, elastic component (7) be located convex flange (8) with frame flange (9) between, the natural length of elastic component (7) be greater than metal sheet (14) with plastic slab (13) between the distance, valve rod bracket component pass the metal pilot hole with the plastic pilot hole be connected with the fastener.

6. The relay mechanism according to claim 1, wherein a set of metal positioning portions are arranged at both ends of the metal plate (14), the metal positioning portions are composed of a plurality of metal positioning small holes which are distributed in a circular shape, a clamp between each metal positioning small hole is 45 degrees, a set of plastic positioning portions are further arranged at the outer side of each plastic connecting hole, the plastic positioning portions are composed of a plurality of plastic positioning small holes which are in one-to-one correspondence with the metal positioning small holes, a plurality of frame flange positioning small holes are arranged on the flange surface at the outer side of the flange through hole, the frame flange positioning small holes are in one-to-one correspondence with the plastic positioning small holes, a plurality of convex flange positioning small holes are arranged on the flange surface at the outer side of the boss connecting hole, the convex flange positioning small holes correspond to the metal positioning small holes one by one.

7. A relay mechanism according to claim 1, characterised in that the distance between two said electrodes (10) is greater than the width of said cylinder support assembly.

8. A relay mechanism according to claim 1, characterised in that said electrode table (11) is provided with a circular groove for receiving said electrode (10).

9. A method of using a pneumatic high-voltage normally-open relay comprising the relay mechanism of any one of claims 1 to 8, wherein the spring bracket assembly is located directly under the electrode (10), the metal plate (14) and the electrode (10) are always kept in non-contact under normal conditions, the electrode stage (11) is located at an upper region of the supporting pillar (12), the electrode (10) is closely attached to a lower surface of the electrode stage (11), the groove is located below the electrode (10), the metal plate (14) is located above the plastic plate (13), the convex flange (8) is located at a lower surface of the metal plate (14), and the frame flange (9) is located at an upper surface of the plastic plate (13), when pneumatic type high pressure normally open relay triggered, the cylinder by compressed gas drive, the ejector pin of cylinder upwards extends, drives valve rod bracket assembly's connecting rod (16) upward movement valve rod bracket's drive down, spring bracket assembly can upward movement gradually, thereby spring bracket assembly's metal sheet (14) can with support column (12) on electrode (10) touch, thereby pneumatic type high pressure normally open relay accomplish and trigger.

10. A method of using a normally closed, pneumatically actuated relay comprising the relay mechanism of any of claims 1-8, wherein the spring bracket assembly is located directly above the electrode (10), the metal plate (14) and the electrode (10) are in constant contact under normal conditions, the electrode stage (11) is located in the middle region of the support post (12), the electrode (10) is attached to the upper surface of the electrode stage (11), the recess is located above the electrode (10), the metal plate (14) is located below the plastic plate (13), the convex flange (8) is located on the upper surface of the metal plate (14), and the frame flange (9) is located on the lower surface of the plastic plate (13), when pneumatic type high pressure normally closed type relay triggered, the cylinder by compressed gas drive, the ejector pin of cylinder upwards extended, drove valve rod bracket assembly's connecting rod (16) upward movement valve rod bracket's drive under, spring bracket assembly can upward movement gradually, thereby spring bracket assembly's metal sheet (14) can with support column (12) on electrode (10) separation, spring bracket assembly upward movement gradually, thereby pneumatic type high pressure normally closed type relay accomplish and trigger.

Technical Field

The present invention relates to the electrical field, and more particularly, to a relay.

Background

The high-voltage relay plays an important role in control, circuit conversion, safe grounding and the like in high-voltage and high-power supply equipment and systems and plays a role which cannot be replaced by a semiconductor switch. The high-voltage power supply is widely applied to a plurality of fields including new energy electric automobiles, medical instruments, aviation, precision equipment and the like, is used for realizing the functions of load isolation, tap selection, safe discharge, safe grounding and the like, and ensures the normal operation of a power supply system and a control system of the high-voltage power supply.

The high-voltage relay has the advantages of simple structure, safety, reliability and the like, plays an important role in a high-voltage high-power supply system and a control system, and still has the problems of too low withstand voltage, too large operation noise and vibration, too large coil power, short continuous working time and the like in the conventional high-voltage relay. How to design and optimize to obtain a high-voltage relay structure with excellent performance and ensure that the high-voltage relay structure reliably and stably runs for a long time is an urgent problem to be solved. There is therefore a great need for a novel relay.

Disclosure of Invention

Accordingly, in view of the disadvantages in the related art, examples of the present invention are provided to substantially solve one or more problems due to limitations and disadvantages of the related art, to substantially improve safety and reliability, and to effectively protect equipment.

According to the technical scheme provided by the invention, the relay mechanism comprises an air cylinder support component, an electrode support component, a spring support component and a valve rod support component, wherein the air cylinder support component and the electrode support component are arranged on a base, the valve rod support component is positioned above the air cylinder support component, the valve rod support component is assembled on the spring support component, the electrode support component is used for supporting an electrode, the spring support component fixes an elastic component between a plastic plate and a metal plate, and a connecting hole is formed in the middle of the base.

Further, the cylinder bracket component comprises a front plate, a rear plate, an upper block and a lower block, the front plate, the rear plate, the upper block and the lower block are enclosed to form a rectangular area, the cylinder is located in the rectangular area, stepped grooves are formed in the middle of the upper block and the middle of the lower block, ejector rods of the cylinder penetrate through the surface of the upper block, and the bottom of the cylinder penetrates through the stepped grooves of the lower block and is fixed in the connecting holes of the base.

Further, the valve rod support subassembly is including preventing the stand that inclines, the connecting rod, the extension rod, the length of connecting rod is greater than the length of preventing the stand that inclines, the both ends of connecting rod all are equipped with the connection screw, wherein, prevent that the stand that inclines connects at the top of cylinder support subassembly, the middle part of preventing the stand that inclines has sliding through hole, the ejector pin of cylinder can hold in preventing the sliding through hole of inclining the stand, the sliding through hole of preventing the stand that inclines is passed to the bottom of connecting rod and is connected with the ejector pin of cylinder, the top at the connecting rod is connected to the extension rod.

Further, the electrode support component comprises two support columns, the two support columns are connected to the base and are distributed at intervals in parallel, the same positions of the two support columns are connected with an electrode table, the same positions of the two support columns are connected with an electrode, the electrode and the electrode table are arranged in a close-proximity mode, an auxiliary plate is connected to the rear of each support column, the auxiliary plate is connected to the base, and a plurality of grooves are formed in each support column.

Further, the spring support component comprises a metal plate and a plastic plate, a metal assembly hole is arranged in the middle of the metal plate, two ends of the plastic plate are respectively provided with a plastic connecting hole, the plastic assembly hole is arranged in the middle of the plastic plate, the metal plate and the plastic plate are connected through a supporting device, the number of the supporting devices is 2, each group of supporting devices comprises a connecting screw rod, a convex flange and a frame flange, a flange through hole is arranged in the middle of the frame flange, one end of the connecting screw rod penetrates through the plastic connecting hole and the flange through hole to be connected with a fastening nut, a cylindrical boss is arranged in the middle of the convex flange, a boss connecting hole is arranged on the cylindrical boss, the other end of the connecting screw rod is assembled in the boss connecting hole, the convex flange is attached to the surface of the metal plate, the frame flange is attached to the surface of the plastic plate, the natural length of the elastic element is larger than the distance between the metal plate and the plastic plate, and the valve rod support assembly penetrates through the metal assembly hole and the plastic assembly hole to be connected with the fastener.

Further, the both ends of metal sheet all are equipped with a set of metal location portion, metal location portion comprises a plurality of metal location aperture, a plurality of metal location aperture is circular distribution, anchor clamps between every metal location aperture are 45, the outside of every plastic connection hole still is equipped with a set of plastics location portion, plastics location portion comprises a plurality of plastics location aperture, plastics location aperture and metal location aperture one-to-one, be equipped with a plurality of frame flange location apertures on the flange face in the outside of flange through-hole, frame flange location aperture and plastics location aperture one-to-one, be equipped with a plurality of convex flange location apertures on the flange face in the outside of boss connecting hole, convex flange location aperture and metal location aperture one-to-one.

Further, the distance between the two electrodes is larger than the width of the cylinder bracket assembly.

Further, a circular groove for accommodating the electrode is provided on the electrode stage.

The invention also discloses a pneumatic high-voltage normally-open relay, wherein a spring bracket component of the pneumatic high-voltage normally-open relay is positioned under the electrode, the metal plate and the electrode are always kept in non-contact in a normal state, the electrode table is positioned in the upper area of the supporting column, the electrode is tightly attached to the lower surface of the electrode table, the groove is positioned below the electrode, the metal plate is positioned above the plastic plate, the convex flange is positioned on the lower surface of the metal plate, and the frame flange is positioned on the upper surface of the plastic plate.

The invention also discloses a pneumatic high-voltage normally-closed relay electrical appliance, wherein a spring bracket assembly of the pneumatic high-voltage normally-closed relay electrical appliance is positioned right above the electrode, the metal plate and the electrode are always kept in contact under a normal state, the electrode table is positioned in the middle area of the supporting column, the electrode is tightly attached to the upper surface of the electrode table, the groove is positioned above the electrode, the metal plate is positioned below the plastic plate, the convex flange is positioned on the upper surface of the metal plate, and the frame flange is positioned on the lower surface of the plastic plate.

The invention provides a pneumatic high-voltage relay which comprises a cylinder support assembly, an electrode support assembly, a spring support assembly and a valve rod support assembly. The pneumatic high-voltage relay is used as an important element in a circuit and a control system and needs to have good, reliable and stable working performance, and the reliable work is guaranteed by using basic designs such as the structure of the pneumatic relay and the like as relay action.

Drawings

Fig. 1 is a schematic view of the overall assembly of the electrode of the present invention.

FIG. 2 is a schematic view of a cylinder bracket assembly of the present invention.

FIG. 3 is a schematic view of a valve stem support assembly of the present invention.

Figure 4 is a schematic view of an electrode holder assembly of the present invention.

FIG. 5 is a schematic view of the electrode holder assembly according to the present invention in a different connection manner.

FIG. 6 is a schematic view of a spring bracket assembly of the present invention.

Fig. 7 is a schematic view of the assembly of the connecting screw of the present invention.

FIG. 8 is a diagram illustrating a trigger state according to the present invention.

Fig. 9 is a schematic diagram of a normally open relay according to the present invention.

Fig. 10 is a schematic diagram of a normally closed relay according to the present invention.

Fig. 11 is a schematic view of a normally open support column of the present invention.

Fig. 12 is a schematic view of a normally closed support column of the present invention.

FIG. 13 is a schematic view of a male flange of the present invention.

Fig. 14 is a schematic view of a frame flange of the present invention.

Fig. 15 is a schematic view of an electrode of the present invention.

Fig. 16 is a schematic view of an electrode stage of the present invention.

Fig. 17 is a schematic view of the plastic panel of the present invention.

FIG. 18 is a schematic view of a metal plate according to the present invention.

Fig. 19 is a schematic view of the anti-tilt stand column of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples.

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention. The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

The relay is used as a switching device in a control system, the relay is used for switching on and off an external circuit in the system, control instructions of a central system are executed through the relay, and the relay can reflect the state of an external device. As a vital and indispensable part of a control circuit, relays are active in automatic control systems in various fields.

In many strong electrical circuit designs, the on/off of the circuit is usually controlled not directly by a switch but by the contacts of a relay. These are known as "power switches" and "thermal switches" that use relay contacts to turn off or on the power source.

In order to maintain a high voltage, the distance between each electrode of the relay must be sufficiently long to avoid breakdown between any two electrodes. On the other hand, insulating members used in relays need to avoid surface arcing. The pneumatic relay of the invention uses a metal plate to touch two cylindrical electrodes for electrical contact. In order to avoid breakdown and surface arcing between any two electrodes, the present invention has been designed with emphasis on the frame structure part.

There are two simple types of relays, one is a normally open relay, with no motor contact before being activated. The other is a normally closed relay, and when the relay is not activated, the electrodes are contacted.

As shown in fig. 1, the pneumatic relay of the present invention mainly includes four basic parts:

1) an electrode holder assembly: made of a rigid plastic rod or plate-like member for supporting the cylindrical electrode;

2) the spring bracket component: fixing the spring between the plastic plate and the metal plate;

3) the valve rod bracket component: the distance between the electrode and the cylinder is increased by using an extension rod. Since the extension pole is made of plastic, a cylindrical connection pole is used to reinforce the extension pole;

4) cylinder bracket subassembly: for isolating the cylinders.

The cylinder adopted by the invention is an SMC cylinder and is made of metal, so that the cylinder needs to be insulated by plastic. The electrode is hit by the metal plate every time it is used, and therefore the support for supporting the electrode must have a sufficiently strong structure. The cylinder is positioned in the middle of the cylinder support assembly so that the distance between the two electrodes on the support posts will be longer than the width of the cylinder support assembly. The metal plate and the electrode can be firmly contacted by the restoring force of the spring.

Cylinder bracket component

Both normally open and normally closed relays have the same cylinder bracket assembly, which, as shown in fig. 2, includes a front plate 2, a rear plate 3, an upper block 4, and a lower block 5, 2. The middle of the base 1 is provided with a connecting hole which is used for connecting the air pipe with the air cylinder. The upper block 4 is used for fixing the anti-inclination upright 6. The base 1, the front plate 2, the rear plate 3, the upper block 4 and the lower block 5 are all made of polyethylene.

Valve stem support assembly

Both normally open and normally closed relays have a valve stem bracket assembly. The valve stem bracket assembly comprises an anti-tilt post 6, a connecting rod 16, and an extension rod 15, as shown in fig. 3. The anti-tilt column 6, the connecting rod 16 and the extension rod 15 are all made of polyethylene. The normally closed relay has a longer stem because it requires more space to place other components. The anti-tilt column 6 has a sliding through hole in the middle for providing a track for the linear movement of the rod. The connecting rod 16 is used to connect the cylinder and the extension rod 15. The extension rod 15 provides a greater working range for the spring bracket assembly.

Electrode support assembly

The electrode holder assembly design is different for each relay for both normally open and normally closed. The electrode holder assembly comprises two cylindrical electrodes 10 made of aluminum alloy, two electrode stages 11, two support columns 12 and two auxiliary plates 17, as shown in fig. 4, the left side is in a normally open form, and the right side is in a normally closed form. Except for the electrodes, they were made of polyethylene. The support column 12 is connected to the susceptor 1, the electrode stage 11, the cylindrical electrode 10 and the auxiliary plate 17. Fig. 5 shows different connection modes of the electrode support assemblies of the normally open relay and the normally closed relay, wherein 5a and 5b are in a normally open mode, and 5c and 5d are in a normally closed mode. As shown in fig. 5a and 5c, the electrodes and electrode table are locked onto a main support. When the electrode 10 is hit by the metal plate, the electrode table 11 is used to increase the support of the electrode, as shown in fig. 5b and 5d, the support column 12 and the auxiliary plate 17 are screwed firmly together by polyethylene screws. This is because the processed polyethylene support post 12 is generally bent, and by joining the support post 12 and the auxiliary plate 17 together, they become flat and stable. The support posts 12 have grooves to increase the surface path, as shown in fig. 4, which is desirable to avoid surface arcing.

Spring bracket assembly

The elastic force of the spring bracket assembly serves to reinforce the contact between the electrode and the metal plate. The spring bracket assembly comprises a metal plate 14, a plastic plate 13, two male flanges 8, two frame flanges 9, two elastic members 7 and two connecting screws. The elastic part 7 is connected between the convex flange 8 and the frame flange 9, the convex flange 8 is attached to the surface of the metal plate, the frame flange 9 is attached to the surface of the plastic plate, and the two flanges can be screwed on the corresponding plate surface by using positioning polyethylene bolts. One end of the connecting screw is connected with a polyethylene fastening nut through the plastic plate and the frame flange, and the polyethylene nut is used for adjusting the distance between the metal plate 14 and the plastic plate 13 or the distance between the metal plate 14 and the two electrodes 10. The length of the elastic member 7 is greater than the distance between the plastic plate 13 and the metal plate 14 as shown in fig. 6, in which the left side is normally open and the right side is normally closed, and the spring holder assembly is designed to swing slightly to allow the metal plate 14 to be in more firm contact with the electrode 10.

For a pneumatic high-voltage normally open relay, a spring bracket assembly is positioned right below an electrode 10, a metal plate 14 and the electrode 10 are always kept in non-contact under a normal state, an electrode table 11 is positioned in the upper area of a support column 12, the electrode 10 is tightly attached to the lower surface of the electrode table 11, a groove is positioned below the electrode 10, the metal plate 14 is positioned above a plastic plate 13, a convex flange 8 is positioned on the lower surface of the metal plate 14, and a frame flange 9 is positioned on the upper surface of the plastic plate 13.

For a pneumatic high-voltage normally closed relay, a spring bracket assembly is positioned right above an electrode 10, a metal plate 14 and the electrode 10 are always kept in contact under a normal state, an electrode table 11 is positioned in the middle area of a support column 12, the electrode 10 is tightly attached to the upper surface of the electrode table 11, a groove is positioned above the electrode 10, the metal plate 14 is positioned below a plastic plate 13, a convex flange 8 is positioned on the upper surface of the metal plate 14, and a frame flange 9 is positioned on the lower surface of the plastic plate 13.

Operation of the relay

The relay is activated when the cylinder is driven by compressed gas. The metal plate 14 will be in contact with or away from both electrodes. Fig. 8 shows a normally open relay and a normally closed relay when deactivated or activated. When the pneumatic high-pressure normally-open relay is triggered, the cylinder is driven by compressed gas, the ejector rod of the cylinder extends upwards to drive the connecting rod of the valve rod support assembly to move upwards, and the spring support assembly can gradually move upwards under the drive of the valve rod support assembly, so that the metal plate of the spring support assembly can be in contact with the electrode on the supporting column, and the pneumatic high-pressure normally-open relay completes triggering; when pneumatic type high pressure normally closed type relay triggered, the cylinder was driven by compressed gas, and the ejector pin of cylinder upwards extended, drove valve rod bracket assembly's connecting rod upward movement, under valve rod bracket's drive, spring bracket assembly can upward movement gradually to spring bracket assembly's metal sheet can with the electrode separation on the support column, spring bracket assembly upward movement gradually, thereby pneumatic type high pressure normally closed type relay accomplishes and triggers.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.