Waterproof and dustproof instantaneous release

Abstract

The utility model relates to the technical field of release, concretely is a waterproof dustproof instantaneous release, the utility model discloses the base and shell, the inside of base and be close to the upper part position and be provided with trigger mechanism, and trigger mechanism includes support, lock catch main part and adjusts the buckle, and support, lock catch main part and adjusts the buckle all set up in the inside of base and be close to the upper edge angle position, and the outside fixedly connected with lock catch lever of lock catch main part, and the handle of upper end surface swing mounting has in base, and the inside of base is close to the middle part position and is provided with instantaneous trigger mechanism, and instantaneous trigger mechanism includes instantaneous iron core and instantaneous core board, and instantaneous iron core fixedly connected in the inner wall position of base, and the instantaneous core board swing installation is in the instantaneous iron core top position through the shaft, the utility model discloses the instantaneous iron core and the instantaneous core board replace the traditional coil cover iron core structure, effectively reduce the time that the coil needs to establish the magnetic field with traditional release mode, make the operation of breaking off more rapid, improve the breaking capacity of this release.

Description

Technical Field

[0001] This utility model relates to the field of trip unit technology, specifically a waterproof and dustproof instantaneous trip unit. Background Technology

[0002] A trip unit is a device mechanically connected to a circuit breaker, used to release the holding mechanism and automatically disconnect the circuit breaker. Its function is to ensure that when there is leakage current in the line or electric shock to a person, the vector sum of the currents passing through the zero-sequence current transformer is not equal to zero, a voltage is generated on both sides of the secondary coil of the transformer, and amplified by an integrated circuit. When the voltage reaches the set value, the power supply is cut off through the leakage current trip unit, thereby playing a role in electric shock and leakage protection.

[0003] In the existing technology, instantaneous trip devices usually adopt a coil-core structure. When the circuit is overloaded, the coil is energized to generate a magnetic field that attracts the iron core to move, driving the mechanical mechanism to disconnect the contacts. However, the coil needs to establish a magnetic field, the iron core has a large inertia, and the tripping time is relatively long. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof and dustproof instantaneous trip device to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A waterproof and dustproof instantaneous release device includes a base and a housing. A triggering mechanism is provided inside the base and near the upper part. The triggering mechanism includes a bracket, a locking body and an adjusting buckle. The bracket, locking body and adjusting buckle are all located inside the base and near the upper corner. A locking rod is fixedly connected to the outside of the locking body. A handle is movably installed on the upper surface of the base.

[0007] An instantaneous contact mechanism is provided near the center of the base. The instantaneous contact mechanism includes an instantaneous iron core and an instantaneous core plate. The instantaneous iron core is fixedly connected to the inner wall of the base, and the instantaneous core plate is movably installed above the instantaneous iron core via a shaft.

[0008] Preferably, the triggering mechanism further includes a moving contact, which is disposed on the inner wall of the base, and a stationary contact is disposed on the inner wall of the base near the moving contact.

[0009] Preferably, the stationary contact is positioned inside the instantaneous iron core, and the moving contact cooperates with the stationary contact.

[0010] Preferably, an arc-extinguishing chamber is provided on the inner wall of the base near the lower part, and a plurality of arc-extinguishing plates are fixedly connected to the inner wall of the arc-extinguishing chamber, and the plurality of arc-extinguishing plates are distributed at equal distances.

[0011] Preferably, an arc-guiding plate is fixedly installed at the bottom of the base, and a double-rib plate is provided inside the base near the moving contact.

[0012] Preferably, a wiring frame is fixedly installed on one side of the inner wall of the base, and a wiring screw is threaded to the upper surface of the wiring frame. A waist groove is opened through the outer wall of the outer shell, and the locking rod is installed through the waist groove and the outer shell. A silicone sealing ring is fixed between the inner wall of the waist groove and the outer wall of the locking rod.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, by setting an instantaneous iron core and an instantaneous core plate to replace the traditional coil sleeve iron core structure, when the current passes through the instantaneous iron core, the instantaneous iron core generates a magnetic field, which attracts the instantaneous core plate to move, causing the instantaneous iron core to trigger the locking body to move, thereby realizing the tripping operation. This effectively reduces the time required for the coil to establish a magnetic field in the traditional tripping method, making the disconnection operation faster and improving the tripping capacity of the trip unit. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of this utility model;

[0018] Figure 3 This is a partial structural diagram of the base in this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention.

[0020] The attached figures are labeled as follows:

[0021] 1. Base; 3. Housing; 4. Handle; 5. Instantaneous iron core; 6. Instantaneous core plate; 7. Waist groove; 9. Locking rod; 10. Arc extinguishing chamber; 11. Arc extinguishing plate; 12. Arc ignition plate; 13. Bracket; 14. Locking body; 15. Moving contact; 16. Double rib plate; 17. Wiring frame; 18. Adjusting clip; 19. Stationary contact; 20. Wiring screw; 21. Silicone sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] A waterproof and dustproof instantaneous trip unit, such as Figures 1-4 As shown, the device includes a base 1 and a housing 3. A triggering mechanism is located inside the base 1 near the upper part. The triggering mechanism includes a bracket 13, a locking body 14, and an adjusting buckle 18. The bracket 13, the locking body 14, and the adjusting buckle 18 are all located inside the base 1 near the upper corner. The adjusting buckle 18 supports tool-free calibration. A locking rod 9 is fixedly connected to the outside of the locking body 14. A handle 4 is movably installed on the upper surface of the base 1. A momentary contact mechanism is located inside the base 1 near the middle. The momentary contact mechanism includes a momentary iron core 5 and a momentary core plate 6. The momentary iron core 5 is fixed inside the base 1 as a static magnetic pole. The momentary iron core 5 is fixedly connected to the inner wall of the base 1. The momentary core plate 6 is movably installed above the momentary iron core 5 via a shaft.

[0024] Among them, the joint surface of the outer shell 3 and the base 1 is coated with sealant, which effectively improves the sealing effect after curing. A silicone sealing ring 21 is fixed between the inner wall of the waist groove 7 and the outer wall of the locking rod 9. The gap between the waist groove 7 and the locking rod 9 is filled with the silicone sealing ring 21, which can prevent external moisture and dust from entering.

[0025] The triggering mechanism also includes a moving contact 15, which is located on the inner wall of the base 1. A stationary contact 19 is located on the inner wall of the base 1 near the moving contact 15. The center of the stationary contact 19 is located inside the instantaneous iron core 5. The moving contact 15 and the stationary contact 19 cooperate with each other. The armature structure of the instantaneous core plate 6 is hinged to the iron core above the iron core through a shaft. When the overload current flows through the stationary contact 19 and the instantaneous iron core 5, the instantaneous iron core 5 is instantly magnetized and directly attracts the instantaneous core plate 6. The instantaneous core plate 6 strikes downward, pushing the moving contact 15 and the stationary contact 19 to separate.

[0026] In use, by setting an instantaneous iron core 5 and an instantaneous core plate 6 to replace the traditional coil sleeve iron core structure, when the current passes through the instantaneous iron core 5, the instantaneous iron core 5 generates a magnetic field, which attracts the instantaneous core plate 6 to move, causing the instantaneous iron core 5 to trigger the locking body 14 to move, realizing the tripping operation. This effectively reduces the time required for the coil to establish a magnetic field in the traditional tripping method, making the disconnection operation faster and improving the tripping capacity of the trip unit.

[0027] An arc-extinguishing chamber 10 is provided on the inner wall of the base 1 near the lower part. Several arc-extinguishing plates 11 are fixedly connected to the inner wall of the arc-extinguishing chamber 10 and are evenly distributed. An arc-inducing plate 12 is fixedly installed at the bottom inside the base 1. A double rib plate 16 is provided on the side of the base 1 near the moving contact 15. The double rib plate 16 can enhance the structural strength of the moving contact 15 and resist the impact of electric arc.

[0028] A wiring frame 17 is fixedly installed on one side of the inner wall of the base 1. A wiring screw 20 is threaded onto the upper surface of the wiring frame 17. A slot 7 is formed through the outer wall of the outer casing 3. The locking rod 9 passes through the slot 7 and is connected to the outer casing 3. When it is necessary to connect a wire to the trip unit, the wiring screw 20 can be rotated first to move the wiring screw 20 upward, thereby releasing the blockage of the wiring frame 17. Then, one end of the wire can be inserted into the wiring frame 17, and the wiring screw 20 can be tightened to compress and fix one end of the wire. Within the wiring frame 17, the connection of the wire is completed. Similarly, when it is necessary to remove the wire from the trip unit, first rotate the wiring screw 20 to release the compression on the wire, and then remove one end of the wire from the wiring frame 17 to complete the removal of the wire for maintenance. The silicone sealing ring 21 has elastic properties, which can ensure the sealing performance between the locking rod 9 and the waist groove 7 while not affecting the movement of the locking rod 9 in the waist groove 7. When the locking rod 9 moves, the silicone sealing ring 21 can deform accordingly.

[0029] Specifically, the electric arc generated when the current passes through is introduced into the arc extinguishing chamber 10 by the arc ignition plate 12, and is cut and cooled by the equally spaced arc extinguishing plates 11 to realize the arc extinguishing operation. The double rib plate 16 can enhance the structural strength of the moving contact 15 and resist the impact of the electric arc.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A waterproof and dustproof instantaneous trip device, comprising a base (1) and a housing (3), characterized in that, A triggering mechanism is provided inside the base (1) and near the upper part. The triggering mechanism includes a bracket (13), a locking body (14) and an adjusting buckle (18). The bracket (13), the locking body (14) and the adjusting buckle (18) are all located inside the base (1) and near the upper corner. A locking rod (9) is fixedly connected to the outside of the locking body (14). A handle (4) is movably installed on the upper surface of the base (1). The base (1) is provided with an instantaneous contact mechanism near the center. The instantaneous contact mechanism includes an instantaneous iron core (5) and an instantaneous core plate (6). The instantaneous iron core (5) is fixedly connected to the inner wall of the base (1), and the instantaneous core plate (6) is movably installed above the instantaneous iron core (5) via a shaft.

2. The waterproof and dustproof instantaneous trip device according to claim 1, characterized in that, The triggering mechanism also includes a moving contact (15), which is located on the inner wall of the base (1), and a stationary contact (19) is located on the inner wall of the base (1) near the moving contact (15).

3. The waterproof and dustproof instantaneous trip device according to claim 2, characterized in that, The stationary contact (19) is located in the middle of the instantaneous iron core (5), and the moving contact (15) cooperates with the stationary contact (19).

4. A waterproof and dustproof instantaneous trip device according to any one of claims 1 to 3, characterized in that, An arc-extinguishing chamber (10) is provided on the inner wall of the base (1) near the lower part. Several arc-extinguishing plates (11) are fixedly connected to the inner wall of the arc-extinguishing chamber (10), and the several arc-extinguishing plates (11) are evenly distributed.

5. A waterproof and dustproof instantaneous trip device according to claim 4, characterized in that, An arc-guiding plate (12) is fixedly installed at the bottom inside the base (1), and a double-rib plate (16) is provided inside the base (1) near the moving contact (15).

6. The waterproof and dustproof instantaneous trip device according to claim 1, characterized in that, A wiring frame (17) is fixedly installed on the inner wall of the base (1) near one side. A wiring screw (20) is threaded onto the upper surface of the wiring frame (17). A waist groove (7) is provided through the outer wall of the outer shell (3). The locking rod (9) is provided through the waist groove (7) and the outer shell (3). A silicone sealing ring (21) is fixed between the inner wall of the waist groove (7) and the outer wall of the locking rod (9).

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