Magnetic latching relay

Abstract

The utility model discloses a magnetic latching relay which comprises a base, an installation cavity is arranged in the base, a partition plate is fixedly arranged in the installation cavity, a movable opening is arranged on one side of the partition plate, two sides of the inner wall of the movable opening are fixedly connected with limiting strips, and a sliding cavity is formed between the two limiting strips. And a push rod is slidably connected into the sliding cavity, one end of the push rod is fixedly connected with a connecting block, a connecting opening is formed in the connecting block, and a clamping block is fixedly connected to the inner wall of the connecting opening. The limiting strip is arranged in the movable opening, the movable space of the movable opening is repeatedly utilized, and therefore it is guaranteed that in the process that the push rod moves at the movable opening, the problem that the motion amplitude of the push rod is large in the process that the drive block drives the push rod is solved, meanwhile, the clamping block is arranged, the connectivity of the connecting opening and the drive block is enhanced, and the service life of the push rod is prolonged. The phenomenon that the push rod shakes is prevented; consumption between moving and static points is reduced, and the service life of the magnetic latching relay is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a magnetic latching relay. Background Art

[0002] A magnetic latching relay is a relay that applies a certain voltage to both ends of a coil, causing a certain current to flow through the coil, generating an electromagnetic effect. When the contacts of the relay need to be opened or closed, the coil is excited by a positive or negative DC pulse voltage, and the magnetic poles generated by the coil interact with the magnetic poles of the magnet. Polarities of the same polarity attract each other, and polarities of opposite polarities repel each other, causing the relay to complete the state transition between open and closed in an instant. When the coil does not need to continue to be energized, the contacts are kept in a holding state, relying on magnetic force to maintain the state of the relay unchanged, thereby realizing the automatic connection and disconnection of the circuit by the magnetic latching relay.

[0003] However, the existing magnetic latching relays have certain drawbacks when in use: for example, there is no limit function set at the push rod installation position in the base, which causes the push rod to move with a large amplitude under the drive of the magnetic steel. When this phenomenon occurs, when the push rod pushes the moving reed, the moving point on the moving reed and the static point on the static reed are not well aligned when they contact, which accelerates the consumption between the moving and static points, thereby reducing the service life of the magnetic latching relay. Summary of the invention

[0004] The purpose of the utility model is to provide a magnetic latching relay to solve the problem mentioned in the background technology that there is no limit function set at the push rod installation position in the base, resulting in a large push rod movement amplitude under the drive of the magnetic steel. When this phenomenon occurs, when the push rod pushes the moving reed, the moving point on the moving reed and the static point on the static reed are not well aligned when they contact, which accelerates the consumption between the moving and static points, thereby reducing the service life of the magnetic latching relay.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic holding relay, comprising a base, a mounting cavity is provided in the base, a partition is fixedly installed in the mounting cavity, a movable opening is provided on one side of the partition, limit strips are fixedly connected to the inner wall of the movable opening on both sides, a sliding cavity is formed between the two limit strips, a push rod is slidably connected in the sliding cavity, one end of the push rod is fixedly connected to a connecting block, a connecting port is provided in the connecting block, and a clamping block is fixedly connected to the inner wall of the connecting port.

[0006] Preferably, a coil is fixedly installed at the lower end of the installation cavity on one side of the partition, yokes are riveted at both ends of the coil, and a magnetic steel assembly is rotatably connected between the two yokes close to one side of the push rod.

[0007] Preferably, the magnetic steel assembly includes a drive block, a hinge shaft and an armature that forms a magnetic fit with the yoke, the outer wall of the armature is wrapped with the drive block, the two sides of the drive block are fixedly connected with hinge shafts, and the hinge shaft is rotatably connected to the bottom of the installation cavity.

[0008] Preferably, the driving block is clamped on the inner wall of the connecting port.

[0009] Preferably, a bayonet is provided at the other end of the push rod.

[0010] Preferably, a dynamic spring assembly is provided in the installation cavity on the other side of the partition, and the top of the dynamic spring assembly is clamped in the bayonet.

[0011] Beneficial Effects

[0012] Compared with the existing technology, the beneficial effects of the utility model are:

[0013] The utility model arranges a limit strip inside the movable port, reuses the movable space of the movable port, forms a sliding cavity, thereby ensuring that the push rod can move at the movable port and solves the problem that the drive block has a large push rod movement amplitude during the process of driving the push rod. At the same time, a clamping block is arranged to strengthen the connectivity between the connecting port and the drive block and prevent the push rod from shaking, thereby reducing the consumption between the moving and static points and prolonging the service life of the magnetic holding relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the push rod structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the matching structure of the push rod and the magnetic steel assembly of the utility model.

[0018] 1. Base; 2. Mounting cavity; 3. Coil frame; 4. Yoke; 5. Push rod; 6. Dynamic spring assembly; 7. Partition;

[0019] 8. Movable opening; 9. Limiting strip; 10. Sliding cavity; 11. Connecting block; 12. Bayonet; 13. Connecting opening;

[0020] 14. Magnetic steel assembly; 131. Clamp block; 141. Driving block; 142. Armature; 143. Hinge shaft. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. 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.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 are not to be construed as limiting the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

[0023] like Figure 1-4 It is a structural schematic diagram of a magnetic latching relay in a preferred embodiment of the utility model. In this embodiment, a magnetic latching relay includes a base 1, a mounting cavity 2 is opened in the base 1, a partition 7 is fixedly installed in the mounting cavity 2, and a movable opening 8 is opened on one side of the partition 7, and limiting strips 9 are fixedly connected to both sides of the inner wall of the movable opening 8, and a sliding cavity 10 is formed between the two limiting strips 9, and a push rod 5 is slidably connected in the sliding cavity 10. By arranging the limiting strip 9 inside the movable opening 8, the movable space of the movable opening is reused to form the sliding cavity 10, so that In order to ensure that the push rod 5 moves at the movable opening 8 and solve the problem that the push rod 5 has a large movement amplitude when the driving block 141 drives the push rod 5, a connecting block 11 is fixedly connected to one end of the push rod 5, and a connecting opening 13 is opened in the connecting block 11, and a clamping block 131 is fixedly connected to the inner wall of the connecting opening 13. Through the setting of the clamping block 131, the connectivity with the driving block 141 is strengthened, and the connection gap is effectively prevented, and the shaking of the push rod 5 is prevented; thereby reducing the consumption between the moving and static points and prolonging the service life of the magnetic holding relay.

[0024] In this embodiment, a coil 3 is fixedly installed at the lower end of the installation cavity 2 on one side of the partition 7, yokes 4 are riveted at both ends of the coil 3, and a magnetic steel assembly 14 is rotatably connected between the two yokes 4 close to one side of the push rod. A magnetic field is generated by energizing the coil 3 and the yoke 4 to drive the magnetic steel assembly 14 to rotate.

[0025] In this embodiment, the magnetic steel assembly 14 includes a driving block 141, a hinge shaft 143 and an armature 142 that forms a magnetic attraction with the yoke 4. The outer wall of the armature 142 is wrapped with the driving block 141, and the hinge shaft 143 is fixedly connected to both sides of the driving block 141. The hinge shaft 143 is rotatably connected to the bottom of the installation cavity 2, thereby driving the driving block 141 to flip.

[0026] In this embodiment, the driving block 141 is simultaneously engaged with the inner wall of the connecting port 13 , and the driving block 141 is turned over to drive the push rod 5 to move forward or backward.

[0027] In this embodiment, a bayonet 12 is provided at the other end of the push rod 5 .

[0028] In this embodiment, a dynamic spring assembly 6 is provided in the installation cavity 2 on the other side of the partition 7, and the top of the dynamic spring assembly 6 is snapped into the bayonet 12. This structural setting connects the dynamic spring assembly 6 to the push rod 5, ensuring the closing and opening functions of the magnetic holding relay.

[0029] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A magnetic latching relay, comprising a base (1), characterized in that: The base (1) is provided with an installation cavity (2), a partition (7) is fixedly installed in the installation cavity (2), a movable opening (8) is provided on one side of the partition (7), limiting strips (9) are fixedly connected to both sides of the inner wall of the movable opening (8), a sliding cavity (10) is formed between the two limiting strips (9), a push rod (5) is slidably connected in the sliding cavity (10), one end of the push rod (5) is fixedly connected to a connecting block (11), a connecting opening (13) is provided in the connecting block (11), and a clamping block (131) is fixedly connected to the inner wall of the connecting opening (13).

2. A magnetic latching relay according to claim 1, characterized in that: A coil (3) is fixedly mounted at the lower end of the installation cavity (2) on one side of the partition (7), yokes (4) are riveted at both ends of the coil (3), and a magnetic steel assembly (14) is rotatably connected between the two yokes (4) near one side of the push rod.

3. A magnetic latching relay according to claim 2, characterized in that: The magnetic steel assembly (14) comprises a driving block (141), a hinge shaft (143) and an armature (142) which forms a magnetic attraction fit with the yoke (4); the outer wall of the armature (142) is wrapped with the driving block (141); the driving block (141) is fixedly connected to the hinge shaft (143) on both sides; and the hinge shaft (143) is rotatably connected to the bottom of the installation cavity (2).

4. A magnetic latching relay according to claim 3, characterized in that: The driving block (141) is clamped on the inner wall of the connecting port (13).

5. The magnetic latching relay according to claim 1, characterized in that: The other end of the push rod (5) is provided with a bayonet (12).

6. A magnetic latching relay according to claim 2, characterized in that: A dynamic spring assembly (6) is provided in the installation cavity (2) on the other side of the partition (7), and the top of the dynamic spring assembly (6) is clamped in the bayonet (12).

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