Relay with large contact gap

Abstract

The utility model relates to a relay with a large contact gap, and belongs to the technical field of electronic control devices. The contact comprises a base, a movable contact assembly, an armature assembly, a static contact assembly, a magnetic steel assembly and an installation groove, the movable contact assembly is matched with the static contact assembly, the static contact assembly is installed on the base, the magnetic steel assembly is matched with the armature assembly, the magnetic steel assembly comprises a magnetic steel body, a magnetic steel sheet, a central shaft and a push rod, and the magnetic steel body, the central shaft and the push rod are connected. A plurality of magnetic steel sheets are arranged on the magnetic steel body; the movable contact assembly is provided with an installation groove, and the push rod is matched with the installation groove. The breaker is reasonable in structural design, safe, reliable, high in breaking speed, small in size and large in contact gap, and meets the use requirements.

Description

Technical Field

[0001] The utility model relates to a relay, in particular to a relay with a large contact gap, and belongs to the technical field of electronic control devices. Background Art

[0002] A relay is an "automatic switch" that uses a smaller current to control a larger current; therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] In the prior art, if one wants to increase the contact gap stroke, for example, in order to comply with the new standard of the State Grid smart IoT meter that the disconnection distance between the moving and static contacts must be greater than 5.5 mm, then it is necessary to increase the magnetic field strength of the magnetic circuit part and increase the power consumption. In particular, the magnetic circuit part composed of the armature assembly also needs to increase the rotation angle of the armature assembly exponentially. This will cause the magnetic spacing between the armature assembly and the coil assembly to increase, and make it more difficult to attract. In order to ensure that the armature assembly can still be attracted normally when the magnetic spacing increases, it is also necessary to increase the magnetic force of the coil of the magnetic circuit part and the magnetic force of the magnet in the armature assembly. This will increase the volume of the coil of the magnetic circuit part and the volume of the armature assembly, and is not conducive to achieving a miniaturized design.

[0004] Therefore, it is particularly necessary to provide a relay with a safe and reasonable structural design, a large contact gap, and a fast breaking speed. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a relay with reasonable structural design, safety and reliability, fast breaking speed, small size and large contact gap.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problem is: the relay with a large contact gap includes a base, a moving contact assembly, an armature assembly and a static contact assembly, the moving contact assembly matches the static contact assembly, and the static contact assemblies are all installed on the base, characterized in that: it also includes a magnetic steel assembly and a mounting groove, the magnetic steel assembly cooperates with the armature assembly, the magnetic steel assembly includes a magnetic steel body, a magnetic steel sheet, a central axis and a push rod, the magnetic steel body, the central axis and the push rod are connected, and a plurality of magnetic steel sheets are arranged on the magnetic steel body; the moving contact assembly is provided with a mounting groove, and the push rod matches the mounting groove.

[0007] Preferably, the utility model also includes a support frame, which is provided with a support frame shaft hole and a support frame boss, and the base is provided with a base shaft hole and a fixing hole, one axis of the magnetic steel assembly matches the base shaft hole, the support frame boss matches the fixing hole, and the other axis of the magnetic steel assembly matches the support frame shaft hole.

[0008] Preferably, the utility model further comprises an auxiliary switch, and the auxiliary switch is arranged on the base.

[0009] Preferably, the utility model further comprises a guide rail member, the movable contact assembly is movably arranged on the guide rail member, and the guide rail member is arranged on the base.

[0010] Preferably, a fixing groove is provided on the base of the utility model, and the moving contact assembly is installed on the fixing groove.

[0011] Preferably, the magnetic steel body, the central axis and the push rod of the utility model are connected as a whole.

[0012] Compared with the prior art, the utility model has the following advantages and effects: reasonable overall structural design, safety and reliability, fast breaking speed, large contact gap, small size, and meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 .

[0015] Figure 3 This is a schematic diagram of the structure of the embodiment of the utility model Figure 3 .

[0016] Figure 4 This is a schematic diagram of the structure of the embodiment of the utility model Figure 4 .

[0017] Figure 5 It is a structural schematic diagram of the magnetic steel assembly in the embodiment of the utility model.

[0018] In the figure: base 1, moving contact assembly 2, auxiliary switch 3, magnetic steel assembly 4, armature assembly 5, support frame 6, static contact assembly 7, guide rail member 8, base shaft hole 11, fixing hole 12, fixing groove 13, mounting groove 21, magnetic steel body 41, magnetic steel sheet 42, center axis 43, push rod 44; support frame shaft hole 61, support frame boss 62. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0020] Example

[0021] See also Figures 1 to 5The relay with a large contact gap in this embodiment includes a base 1, a moving contact assembly 2, an auxiliary switch 3, a magnetic steel assembly 4, an armature assembly 5, a support frame 6, a static contact assembly 7 and a guide rail member 8. The moving contact assembly 2 matches the static contact assembly 7, and the static contact assembly 7 is installed on the base 1. The magnetic steel assembly 4 cooperates with the armature assembly 5; the auxiliary switch 3 is arranged on the base 6.

[0022] The magnetic steel assembly 4 in this embodiment includes a magnetic steel body 41, a magnetic steel sheet 42, a central axis 43 and a push rod 44. The magnetic steel body 41, the central axis 43 and the push rod 44 are connected, and a plurality of magnetic steel sheets 42 are arranged on the magnetic steel body 41; an installation groove 21 is arranged on the moving contact assembly 2, and the push rod 44 matches the installation groove 21.

[0023] The support frame 6 in this embodiment is connected to the base, and the support frame 6 is provided with a support frame shaft hole 61 and a support frame boss 62. The base 1 is provided with a base shaft hole 11 and a fixing hole 12. One axis of the magnetic steel assembly 4 matches with the base shaft hole 11, the support frame boss 62 matches with the fixing hole 12, and the other axis of the magnetic steel assembly 4 matches with the support frame shaft hole 61.

[0024] The movable contact assembly 2 in this embodiment is movably disposed on a guide rail member 8 , and the guide rail member 8 is disposed on the base 1 .

[0025] In this embodiment, a fixing groove 13 is provided on the base 1 , and the moving contact assembly 2 is mounted on the fixing groove 13 .

[0026] The magnetic steel body 41, the central axis 43 and the push rod 44 in this embodiment may also be connected as one piece, and the selection is made according to the actual situation.

[0027] During operation, the armature assembly 5 generates magnetic fields of different polarities after being energized, pushing the magnetic steel assembly 4, causing the main axis of the magnetic steel assembly 4 to rotate around the central axis 43, so that the push rod 44 drives the moving contact assembly 2 to operate.

[0028] Through the above description, those skilled in the art can already implement it.

[0029] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A relay with a large contact gap, comprising a base (1), a moving contact assembly (2), an armature assembly (5) and a stationary contact assembly (7), wherein the moving contact assembly (2) matches the stationary contact assembly (7), and the stationary contact assembly (7) is mounted on the base (1), characterized in that: It also includes a magnetic steel component (4) and a mounting groove (21), wherein the magnetic steel component (4) cooperates with the armature component (5), the magnetic steel component (4) includes a magnetic steel body (41), a magnetic steel sheet (42), a central axis (43) and a push rod (44), the magnetic steel body (41), the central axis (43) and the push rod (44) are connected, and a plurality of magnetic steel sheets (42) are arranged on the magnetic steel body (41); the moving contact component (2) is provided with a mounting groove (21), and the push rod (44) matches the mounting groove (21).

2. The relay with large contact gap according to claim 1, characterized in that: The invention also comprises a support frame (6), wherein the support frame (6) is provided with a support frame shaft hole (61) and a support frame boss (62); the base (1) is provided with a base shaft hole (11) and a fixing hole (12); one shaft of the magnetic steel assembly (4) matches with the base shaft hole (11), the support frame boss (62) matches with the fixing hole (12), and the other shaft of the magnetic steel assembly (4) matches with the support frame shaft hole (61).

3. The relay with large contact gap according to claim 1, characterized in that: It also includes an auxiliary switch (3), wherein the auxiliary switch (3) is arranged on the base (1).

4. The relay with large contact gap according to claim 1, characterized in that: It also comprises a guide rail member (8), the movable contact assembly (2) is movably arranged on the guide rail member (8), and the guide rail member (8) is arranged on the base (1).

5. The relay with large contact gap according to claim 1, characterized in that: The base (1) is provided with a fixing groove (13), and the moving contact assembly (2) is mounted on the fixing groove (13).

6. The relay with large contact gap according to claim 1, characterized in that: The magnetic steel body (41), the central axis (43) and the push rod (44) are connected as a whole.

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