Load switch structure used in electricity meter

Abstract

The utility model relates to a load switch structure used in an electricity meter, and belongs to the technical field of electronic control devices. The electromagnetic relay comprises a base, a cover plate, a static reed, a coil framework, yokes, a support frame, a magnetic steel combination, a movable contact system, a torsion push rod and a connecting hook, the base is matched with the cover plate, two ends of the coil framework are connected with the yokes, the magnetic steel combination is contacted with the yokes, the coil framework and the magnetic steel combination are fixed on the base, the static reed is arranged on the base, and the support frame is arranged on the support frame. The supporting frame is connected with the base, the movable contact system is matched with the static reed, and the movable contact system is movably arranged on the base; a magnetic steel push handle piece is arranged on the magnetic steel combination, one end of the connecting hook is matched with the torsion push rod, and the other end of the connecting hook is matched with the magnetic steel push handle piece. The magnetic circuit breaker is reasonable in structural design, safe and reliable, reduces magnetic circuit holding force, increases elastic stability of the elastic sheet, is convenient to install, and meets use requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switch structure, especially a load switch structure for an electric meter, and belongs to the technical field of electronic control devices. BACKGROUND

[0002] A relay is actually an "automatic switch" that uses a small current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit conversion in a circuit.

[0003] In the prior art, the magnetic steel assembly and the moving spring assembly are directly connected through a strip-shaped push rod and a groove on the magnetic steel. Since the contact gap is enlarged, a larger magnetic circuit holding force is required.

[0004] A utility model patent with the title "Large-gap load switch and working method thereof" is disclosed in Chinese Patent CN118280781A, published on July 2, 2024. In the moving contact assembly of this patent, the contact spring sheet is provided with eight feet, and the auxiliary spring sheet is riveted on the magnetic conductive ring. The above-mentioned shortcomings are that the spring force of the spring sheet is unstable, the installation process is troublesome, and it cannot meet the existing demand. UTILITY MODEL CONTENTS

[0005] The utility model aims to overcome the above-mentioned shortcomings in the prior art and provide a load switch structure for an electric meter, which has a reasonable structure design, is safe and reliable, reduces the magnetic circuit holding force, increases the stability of the spring force of the spring sheet, and is easy to install.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problems is as follows: the load switch structure for an electric meter includes a base, a static spring sheet, a coil framework, a yoke, and a magnetic steel combination. The static spring sheet is arranged on the base, the coil framework and the magnetic steel combination are fixed on the base, the two ends of the coil framework are connected with the yoke, and the magnetic steel combination is in contact with the yoke. The utility model is characterized in that it further includes a moving contact system, a torsion push rod, and a connecting hook. The moving contact system is matched with the static spring sheet, the moving contact system is movably arranged on the base, and the torsion push rod is connected with the magnetic steel combination through the connecting hook. The moving contact system includes a moving spring base, a moving spring sheet, a contact spring sheet, a moving spring clamping piece, a magnetic short-circuit ring, and a contact pressure spring. The contact spring sheet is installed on the moving spring base, the magnetic short-circuit ring is arranged on the moving spring sheet, one end of the contact pressure spring is in contact with the moving spring base, the other end of the contact pressure spring is connected with the magnetic short-circuit ring, and the moving spring sheet is connected with the moving spring base through the moving spring clamping piece.

[0007] As a preferred embodiment, the contact spring sheet is provided with eight contact pressure springs and four counterforce springs. The eight contact pressure springs are in contact with the moving spring sheet, and the four counterforce springs are matched with the moving contacts of the moving spring sheet, respectively.

[0008] As preferred, the magnetic steel combination is provided with a magnetic steel pushing member, the magnetic steel pushing member is integrated with the magnetic steel combination, one end of a connecting hook is matched with the torsion pushing rod, and the other end of the connecting hook is matched with the magnetic steel pushing member.

[0009] As preferred, the utility model also includes magnetic short circuit piece assembly, magnetic short circuit piece assembly installs on the base, and this magnetic short circuit piece assembly contacts with magnetic short circuit ring.

[0010] As preferred, the utility model also includes baffle, the base is provided with baffle;Increase the electrical gap between two static spring sheets.

[0011] As preferred, the utility model also includes cover plate, and the cover plate is matched with the base.

[0012] As preferred, the utility model also includes support frame, and the support frame is connected with the base.

[0013] As preferred, the support frame is provided with torsion pushing rod cooperation hole, magnetic steel cooperation hole and moving spring base groove, the top of the torsion pushing rod is matched with the torsion pushing rod cooperation hole, the top of the magnetic steel combination is matched with the magnetic steel cooperation hole, and the moving spring base is matched with the moving spring base groove.

[0014] As preferred, the utility model also includes shielding cover, and the shielding cover is arranged outside the base.

[0015] As preferred, the coil framework adopts I-shaped framework.

[0016] Compared with prior art, the utility model has the following advantages and effects: (1) the overall structure is reasonable in design, safe and reliable, eight contact pressure springs and four counterforce springs are arranged on the contact spring of the moving contact system, and the elastic stability is increased;(2) two contact pressure springs are arranged on the moving contact system, the spring is more stable and easier to install compared with the riveting mode;(3) through the amplification of four-bar linkage mechanism force, the magnetic circuit holding force can be reduced, and the coil power consumption is reduced;(4) a support frame replaces the guide rail piece and shaft fixing plate in the original device, so that the overall structure is more simplified and reasonable, and the use requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall top view structure schematic diagram of the utility model embodiment.

[0018] Figure 2 It is the overall three-dimensional structure schematic diagram of the utility model embodiment.

[0019] Figure 3 It is the structure schematic diagram of the utility model embodiment after removing cover plate and shielding cover.

[0020] Figure 4 is Figure 3 is a structural schematic diagram after removing the support frame.

[0021] Figure 5 is a structural schematic diagram of the load switch being opened after removing the cover plate and shielding cover in the embodiment of the utility model.

[0022] Figure 6 is Figure 5 is a structural schematic diagram after removing the support frame.

[0023] Figure 7 is a split structural schematic diagram of the moving contact system in the embodiment of the utility model.

[0024] Figure 8 is a front view structural schematic diagram of the moving contact system in the embodiment of the utility model.

[0025] Figure 9 is a three-dimensional structural schematic diagram of the moving contact system in the embodiment of the utility model.

[0026] In the figure: base 1, moving contact system 2, static spring sheet 3, magnetic short-circuit sheet assembly 4, coil framework 5, yoke 6, torsion push rod 7, connecting hook 8, support frame 9, magnetic steel combination 10, shielding cover 11, cover plate 12; moving spring base 21, moving spring sheet 22, contact spring 23, moving spring clamping piece 24, magnetic short-circuit ring 25, contact pressure spring 26, contact pressure spring sheet 231, counter-force spring sheet 232; baffle 1-1, torsion push rod matching hole 91, magnetic steel matching hole 92, moving spring base groove 93, magnetic steel push clamping piece 101. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in combination with the drawings and through the embodiment, and the following embodiment is an explanation of the utility model, and the utility model is not limited to the following embodiment.

[0028] EMBODIMENT

[0029] Referring to Figures 1 to 9 , the load switch structure for the electric meter in the embodiment comprises a base 1, a moving contact system 2, a static spring sheet 3, a magnetic short-circuit sheet assembly 4, a coil framework 5, a yoke 6, a torsion push rod 7, a connecting hook 8, a support frame 9, a magnetic steel combination 10, a shielding cover 11 and a cover plate 12, the base 1 and the cover plate 12 are matched with each other, the two ends of the coil framework 5 are connected with the yoke 6, the magnetic steel combination 10 contacts the yoke 6, the coil framework 5 and the magnetic steel combination 10 are fixed on the base 1, the static spring sheet 3 is arranged on the base 1, the support frame 9 is connected with the base 1, the moving contact system 2 is matched with the static spring sheet 3, and the moving contact system 2 is movably arranged on the base 1.

[0030] The magnetic steel combination 10 is provided with a magnetic steel pushing member 101, one end of a connecting hook 8 is matched with the torsion pushing rod 7, and the other end of the connecting hook 8 is matched with the magnetic steel pushing member 101.

[0031] The moving contact system 2 comprises a moving spring base 21, a moving spring sheet 22, a contact spring sheet 23, a moving spring clamping member 24, a magnetic short circuit ring 25 and a contact pressure spring 26, the contact spring sheet 23 is installed on the moving spring base 21, the magnetic short circuit ring 25 is arranged on the moving spring sheet 22, one end of the contact pressure spring 26 is in contact with the moving spring base 21, and the other end of the contact pressure spring 26 is connected with the magnetic short circuit ring 25, and the moving spring sheet 22 is connected with the moving spring base 21 through the moving spring clamping member 24.

[0032] The contact spring sheet 23 is provided with eight contact pressure springs 231 and four counterforce springs 232, the eight contact pressure springs 231 are in contact with the moving spring sheet 22, and the four counterforce springs 232 are matched with the moving contacts of the moving spring sheet 22 respectively.

[0033] The magnetic short circuit sheet assembly 4 is installed on the base 1, and the magnetic short circuit sheet assembly 4 is in contact with the magnetic short circuit ring; the magnetic short circuit sheet assembly 4 simulates a short circuit state under certain conditions, so as to test and diagnose the performance of the circuit.

[0034] The base 1 is provided with a baffle 1-1; the electrical gap between the two static spring sheets is increased.

[0035] The torsion pushing rod cooperation hole 91, the magnetic steel cooperation hole 92 and the moving spring base groove 93 are formed in the support frame 9, the top of the torsion pushing rod 7 is matched with the torsion pushing rod cooperation hole 91, the top of the magnetic steel combination 10 is matched with the magnetic steel cooperation hole 92, and the moving spring base 21 is matched with the moving spring base groove 93.

[0036] The magnetic steel pushing member 101 is integrated with the magnetic steel combination 10.

[0037] The shielding cover 11 is arranged outside the base 1; the coil skeleton 5 adopts an I-shaped skeleton; and the actual situation can be selected.

[0038] Through the above description, those skilled in the art can implement it.

[0039] Furthermore, it needs to explain, the specific embodiment described in this specification, the shape of its parts, components, the name taken, etc. can be different, the above described in this specification is only an example of the structure of the utility model structure. The equivalent changes or simple changes made according to the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace the specific embodiments described, as long as it does not deviate from the structure of the utility model or beyond the scope defined in the claims, it should belong to the protection scope of the utility model.

Claims

1. A load switch structure for an electricity meter, comprising a base (1), a stationary spring (3), a coil frame (5), a yoke (6), and a magnet assembly (10), wherein the stationary spring (3) is disposed on the base (1), the coil frame (5) and the magnet assembly (10) are both fixed on the base (1), both ends of the coil frame (5) are connected to the yoke (6), and the magnet assembly (10) is in contact with the yoke (6), characterized in that: It also includes a moving contact system (2), a torsion push rod (7) and a connecting hook (8), the moving contact system (2) is matched with the static spring sheet (3), the moving contact system (2) is movably arranged on the base (1), the torsion push rod (7) is connected with the magnetic steel combination (10) through the connecting hook (8); the moving contact system (2) includes a moving spring base (21), a moving spring sheet (22), a contact spring sheet (23), a moving spring clamping piece (24), a magnetic short circuit ring (25) and a contact pressure spring (26), the contact spring sheet (23) is installed on the moving spring base (21), the moving spring sheet (22) is provided with the magnetic short circuit ring (25), one end of the contact pressure spring (26) is in contact with the moving spring base (21), the other end of the contact pressure spring (26) is connected with the magnetic short circuit ring (25), and the moving spring sheet (22) is connected with the moving spring base (21) through the moving spring clamping piece (24).

2. The load switch structure for use in an electricity meter according to claim 1, characterized by: The contact spring sheet (23) is provided with eight contact pressure spring sheets (231) and four counterforce spring sheets (232), the eight contact pressure spring sheets (231) are in contact with the moving spring sheet (22), and the four counterforce spring sheets (232) are respectively matched with the moving contacts of the moving spring sheet (22).

3. The load switch configuration for use in an electrical meter according to claim 1, characterized in that: The magnetic steel combination (10) is provided with a magnetic steel pushing piece (101), the magnetic steel pushing piece (101) is connected with the magnetic steel combination (10) as a whole, one end of the connecting hook (8) is matched with the torsion push rod (7), and the other end of the connecting hook (8) is matched with the magnetic steel pushing piece (101).

4. The load switch configuration for use in an electrical meter according to claim 1, characterized in that: It also includes a magnetic short circuit sheet assembly (4), the magnetic short circuit sheet assembly (4) is installed on the base (1), and the magnetic short circuit sheet assembly (4) is in contact with the magnetic short circuit ring.

5. The load switch configuration for use in an electrical meter according to claim 1, wherein: It also includes a baffle (1-1), the base (1) is provided with the baffle (1-1).

6. The load switch configuration for use in an electrical meter according to claim 1, characterized in that: It also includes a cover plate (12), the cover plate (12) is matched with the base (1).

7. The load switch structure for use in an electrical meter according to claim 1, characterized by: It also includes a support frame (9), the support frame (9) is connected with the base (1).

8. The load switch structure for use in an electricity meter according to claim 7, characterized by: The support frame (9) is provided with a torsion push rod matching hole (91), a magnetic steel matching hole (92) and a moving spring base groove (93), the top of the torsion push rod (7) is matched with the torsion push rod matching hole (91), the top of the magnetic steel combination (10) is matched with the magnetic steel matching hole (92), and the moving spring base (21) is matched with the moving spring base groove (93).

9. The load switch structure for use in an electrical meter according to claim 1, characterized by: It also includes a shielding cover (11), the shielding cover (11) is arranged outside the base (1).

10. The load switch structure for use in an electrical meter according to claim 1, characterized by: The coil framework (5) adopts an I-shaped framework.

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