Relay with large opening distance

Abstract

The utility model provides a large-open-distance relay. The large-open-distance relay comprises a housing; the armature is arranged in the shell and comprises a first swinging part and a second swinging part, the first swinging part and the second swinging part are arranged in an L-shaped structure, and a groove used for avoiding swinging of the armature is formed in the shell; the coil is connected with the armature; the contact assembly comprises a static contact and a moving contact; the static contact is arranged on the shell, the moving contact is arranged on the armature, one side, opposite to the moving contact, of the armature is linked with the coil, the armature has an initial state and a breaking state for controlling the moving contact and the static contact to be separated, the moving contact and the static contact are attracted in the initial state, and the moving contact and the static contact are separated in the breaking state. And the moving contact is separated from the static contact, and the distance between the static contact and the moving contact is greater than or equal to 2.3 mm. The relay can overcome the defects that the opening distance of an electric appliance in the prior art is relatively small, and some high-current and high-load products cannot be met.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a large-opening-distance relay. Background Art

[0002] Relay is an electronic control device, which has control system and controlled system, and is usually used in automatic control circuit. It is actually an "automatic switch" that uses a small current to control a large current. Therefore, it plays the role of automatic adjustment, safety protection, circuit conversion, etc. in the circuit. The relay in the prior art has a small opening distance and cannot meet the needs of some high current and high load products. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the electrical appliances in the prior art have a small opening distance and cannot meet the needs of some high current and high load products, thereby providing a large opening distance relay.

[0004] To this end, the utility model provides a large-opening distance relay, comprising: a housing; an armature, which is arranged inside the housing, and comprises a first swinging part and a second swinging part, and the two are arranged in an "L" structure, and the housing is provided with a groove for avoiding the swing of the armature; a moving spring, which is arranged on the side of the second swinging part facing away from the first swinging part, and the moving spring is linked with the second swinging part; a coil, which is connected to the first swinging part; a contact assembly, which comprises a static contact and a moving contact; the static contact is arranged on the housing, and the moving contact is arranged on the moving spring; the moving spring has an initial state and a disconnecting state for controlling the separation of the moving contact and the static contact, in the initial state, the moving contact is attracted to the static contact, and in the disconnecting state, the moving contact is separated from the static contact, and the spacing between the static contact and the moving contact is greater than or equal to 2.3 mm.

[0005] Furthermore: a connecting piece is connected to the shell, the static contact is arranged on the connecting piece, and the shell is also provided with an avoidance groove for avoiding the arc generated by disconnection.

[0006] Further: the side of the movable spring piece on which the movable contact is provided is arranged in an arc-shaped structure.

[0007] Further: the shell includes an upper cavity and a lower cavity, a partition is provided between the upper cavity and the lower cavity, the coil is located in the lower cavity, the first swing part is partially located in the lower cavity, and the part located in the lower cavity is connected to the coil, and the other end passes through the partition to the upper cavity and is connected to the second swing part.

[0008] Further: the housing comprises a support plate, the support plate is located above the partition, and the bottom of the moving contact is connected to the partition.

[0009] The technical solution of the utility model has the following advantages:

[0010] 1. The utility model provides a large-opening circuit breaker, wherein a groove for avoiding an armature is arranged inside a shell, and the armature comprises a first swinging part and a second swinging part, wherein the first swinging part is connected to a coil, and the specific movement process is that the coil drives the first swinging part to swing clockwise through an electromagnetic principle, and since the first swinging part and the second swinging part are both arranged in an "L" structure, the second swinging part will also swing clockwise, and the second swinging part has a protrusion in contact with a moving spring piece, and the second swinging part drives the moving spring piece to move clockwise, thereby driving the moving contact to separate from the stationary contact, and through the arrangement of the groove, the swinging position of the first swinging part is avoided, so that the space and amplitude of the first swinging part can be made larger, so that the swinging distance of the second swinging part can be made longer, and when disconnecting, the separation distance between the moving contact and the stationary contact is made longer, so as to achieve full switching, thereby effectively adapting to some large current and high load application fields.

[0011] 2. The utility model provides a large-opening circuit breaker, wherein a connecting piece is provided on the shell, a static contact is provided on the connecting piece, and a convex bump is provided on the shell for the connecting piece to be inserted into so as to fix the connecting piece. When the moving contact and the static contact are separated, an arc is generated, and the temperature of the arc is relatively high. When the arc contacts the shell, it will corrode the shell. In order to avoid this technical problem, this embodiment provides an avoidance groove on the shell for avoiding the arc, which effectively alleviates the problem of the arc corroding the shell during the operation of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the internal structure of the relay;

[0014] Figure 2 It is a side view of the internal structure of the relay;

[0015] Figure 3 A cross-sectional view of a relay.

[0016] Description of reference numerals:

[0017] 1. Shell; 11. Connecting piece; 12. Avoidance groove; 13. Upper cavity; 14. Lower cavity; 2. Armature; 21. First swinging part; 22. Second swinging part; 3. Coil; 4. Contact assembly; 41. Stationary contact; 42. Moving contact; 5. Moving spring; 6. Separator; 7. Groove; 8. Support plate. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Example

[0023] The present embodiment provides a housing 1; an armature 2, which is arranged inside the housing 1 and includes a first swinging portion 21 and a second swinging portion 22, which are arranged in an "L" structure, and a groove 7 for avoiding the swing of the armature 2 is arranged on the housing 1; a movable spring 5, which is arranged on the side of the second swinging portion 22 facing away from the first swinging portion 21, and the movable spring 5 is linked with the second swinging portion 22; a coil 3, which is connected to the first swinging portion 21; a contact assembly 4, which includes a static contact 41 and a dynamic contact 42; the static contact 41 is arranged on the housing 1, and the dynamic contact 42 is arranged on the movable spring 5; the dynamic spring 5 has an initial state and a disconnecting state for controlling the separation of the dynamic contact 42 from the static contact 41, in which the dynamic contact 42 is attracted to the static contact 41 in the initial state, and the dynamic contact 42 is separated from the static contact 41 in the disconnecting state, and the spacing between the static contact 41 and the dynamic contact 42 is greater than or equal to 2.3 mm.

[0024] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, a groove 7 for avoiding the armature 2 is provided inside the housing 1. The armature 2 includes a first swinging portion 21 and a second swinging portion 22. The first swinging portion 21 is connected to the coil 3. The specific movement process is that the coil 3 drives the first swinging portion 21 to swing clockwise through the electromagnetic principle. Since the first swinging portion 21 and the second swinging portion 22 are both arranged in an "L" structure, the second swinging portion 22 will also swing clockwise. The second swinging portion 22 has a protrusion in contact with the moving spring piece 5. The second swinging portion 22 drives the moving spring piece 5 to move clockwise, thereby driving the moving contact 42 to separate from the static contact 41. Through the setting of the groove 7, the swinging position of the first swinging portion 21 is avoided, the space and amplitude of the first swinging portion 21 can be larger, so that the second swinging portion 22 can swing a longer distance. When disconnecting, the separation distance between the moving contact 42 and the static contact 41 is made longer, so as to achieve full switching, thereby effectively adapting to some large current and high load application fields.

[0025] On the basis of the above embodiment: the housing 1 is connected with a connecting piece 11 , the static contact 41 is arranged on the connecting piece 11 , and the housing 1 is further provided with an avoidance groove 12 for avoiding the arc generated by the breaking.

[0026] The above specific improvements are: Figure 1 and Figure 2As shown, a connecting piece 11 is provided on the shell 1, and a static contact 41 is provided on the connecting piece 11. A convex bump is provided on the shell 1 for the connecting piece 11 to be snapped into so as to fix the connecting piece 11. When the moving contact 42 and the static contact 41 are separated, an arc is generated. The temperature of the arc is relatively high. When the arc contacts the shell 1, the shell 1 is corroded. In order to avoid this technical problem, the present embodiment provides an avoidance groove 12 for avoiding the arc on the shell 1, which effectively alleviates the problem of arc corrosion of the shell 1 generated during the operation of the relay.

[0027] On the basis of the above embodiment: the side of the movable spring piece 5 where the movable contact 42 is provided is arranged in an arc-shaped structure.

[0028] The above specific improvements are: Figure 1-Figure 3 As shown, a movable spring piece 5 is provided on the side of the armature 2 facing away from the coil 3, one side of the movable spring piece 5 is fixed to the second swinging part 22, and a movable contact 42 is provided on the other side. When the coil 3 drives the first swinging part 21 to swing clockwise, the first swinging part 21 will drive the second swinging part 22 to swing, and the second swinging part 22 will drive the movable spring piece 5 to swing, and finally complete the disconnection of the movable contact 42 and the static contact 41. In addition, the side of the movable spring piece 5 provided with the movable contact 42 is arranged in an arc-shaped structure, which effectively increases the creepage distance between the movable spring piece 5 and the outside world.

[0029] On the basis of the above embodiment: the shell 1 includes an upper cavity 13 and a lower cavity 14, a partition 6 is provided between the upper cavity 13 and the lower cavity 14, the coil 3 is located in the lower cavity 14, the first swing part 21 is partially located in the lower cavity 14, and the part located in the lower cavity 14 is connected to the coil 3, and the other end passes through the partition 6 to the upper cavity 13 and is connected to the second swing part 22.

[0030] On the basis of the above embodiment: the housing 1 comprises a support plate 8 , the support plate 8 is located above the partition 6 , and the bottom of the moving contact 42 is connected to the partition 6 .

[0031] The above specific improvements are: Figure 1 As shown, the shell 1 includes an upper cavity 13 and a lower cavity 14, and a partition 6 is provided between the upper cavity 13 and the lower cavity 14. The coil 3 is arranged in the lower cavity 14, and one end connected between the first swinging part 21 and the coil 3 is arranged in the lower cavity 14, and the other end passes through the partition 6, extends to the upper cavity 13, and is connected to the second swinging part 22 at the part passing through the upper cavity 13. By setting the partition plate, the moving contact 42 and the coil 3 can be effectively separated, and by setting the support plate 8, the creepage distance between the moving contact 42 and the coil 3 can be increased.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A large-opening distance relay, characterized in that: include: Housing (1); The armature (2) is arranged inside the housing (1), and comprises a first swinging portion (21) and a second swinging portion (22), which are arranged in an "L" structure. The housing (1) is provided with a groove (7) for preventing the armature (2) from swinging. A movable spring (5) is arranged on a side of the second swinging portion (22) facing away from the first swinging portion (21), and the movable spring (5) is linked with the second swinging portion (22); A coil (3) connected to the first swinging part (21); A contact assembly (4), comprising a stationary contact (41) and a moving contact (42); the stationary contact (41) is arranged on a housing (1), and the moving contact (42) is arranged on a moving spring sheet (5); The movable spring piece (5) has an initial state and a disconnecting state for controlling the separation of the movable contact (42) and the stationary contact (41); in the initial state, the movable contact (42) and the stationary contact (41) are attracted; in the disconnecting state, the movable contact (42) and the stationary contact (41) are separated; and the spacing between the stationary contact (41) and the movable contact (42) is greater than or equal to 2.3 mm.

2. A wide-opening relay according to claim 1, characterized in that: The housing (1) is connected to a connecting piece (11), the static contact (41) is arranged on the connecting piece (11), and the housing (1) is also provided with an avoidance groove (12) for avoiding an arc generated by disconnection.

3. A wide-opening relay according to claim 2, characterized in that: The side of the movable spring piece (5) on which the movable contact (42) is arranged is arranged in an arc-shaped structure.

4. A wide-opening relay according to claim 2, characterized in that: The shell (1) comprises an upper chamber (13) and a lower chamber (14), a partition (6) being provided between the upper chamber (13) and the lower chamber (14), the coil (3) being located in the lower chamber (14), the first swinging portion (21) being partially located in the lower chamber (14), and the portion located in the lower chamber (14) being connected to the coil (3), and the other end passing through the partition (6) to the upper chamber (13) and being connected to the second swinging portion (22).

5. A wide-opening relay according to claim 4, characterized in that: The housing (1) comprises a support plate (8), the support plate (8) is located above the partition (6), and the bottom of the moving contact (42) is connected to the partition (6).

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