Magnetic latching relay with microswitch signal detection

Abstract

The utility model relates to the technical field of double-contact relays, in particular to a magnetic latching relay with microswitch signal detection, which comprises a base, a microswitch, a coil, a support frame, a magnetic steel component, a pushing sheet, a movable spring leading-out sheet, a static spring leading-out sheet, a conducting sheet, a movable contact and a static contact. A supporting frame is fixed to the outer side of the magnetic steel assembly, a push rod on the left side of the magnetic steel assembly is inserted into a connecting groove in the bottom of a push piece, a microswitch is arranged on the lower side of the push piece, the upper side of the push piece is connected with a conductive piece, the right end of the conductive piece is fixed to one end of a movable spring leading-out piece, and a movable contact is arranged on the conductive piece. And a static contact is correspondingly arranged above the movable contact and is fixed on the static spring leading-out sheet. According to the utility model, the microswitch is adopted to realize accurate detection of the magnetic steel assembly, so that the magnetic steel assembly can accurately control the up-down displacement of the pushing sheet; the volume structure is small, the internal space is saved, the response speed is high, and the control is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic latching relays, and more specifically, to a magnetic latching relay with microswitch signal detection.

Background Art

[0002] In recent years, with the rapid development of the electronic information industry, relays, as basic components, have been widely used in automation control fields such as home appliances, communications, automobiles, instrumentation, machinery, and aerospace. Recent statistical data shows that among electronic component products, relays have become the largest product in terms of annual sales. The magnetic latching relay is a new type of relay developed in recent years. As one of the important components for intelligent control, it plays an important role. Like other electromagnetic relays, it automatically connects and disconnects the circuit. The difference is that the normally closed or normally open state of the magnetic latching relay completely depends on the action of the permanent magnet, and the conversion of its switch state is triggered by a pulse electrical signal with a certain width, which has the characteristics of power saving, stable performance, small size, large load capacity, and superior performance compared with other relays. Therefore, magnetic latching relays are increasingly widely used.

[0003] An existing double-contact magnetic latching relay, with the publication number CN 106876217 B, includes a housing. Inside the housing, there is a coil assembly and an armature assembly. A push block is connected to the armature assembly, and when the coil assembly is energized, it can force the armature assembly to act, causing the push block to move relative to the housing. Inside the housing, there is also a double-contact static contact assembly and a double-contact moving contact assembly, and the movement of the push block can drive the double-contact moving contact assembly to approach or move away from the double-contact static contact assembly. However, this type of magnetic latching relay controls the operation of the relay by controlling the opening and closing of the coil, but this driving method has a long response time, and the control effect on the magnetic latching relay needs to be achieved by controlling the current in the coil circuit.

Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a magnetic latching relay with microswitch signal detection, which sets a microswitch to detect the signal of the magnetic latching relay, making the control more accurate and effective.

[0005] To achieve the above object, the present utility model provides the following technical solution: A magnetic latching relay with microswitch signal detection, comprising a base, a microswitch, a coil, a support frame, a magnet assembly, a push piece, a moving contact lead piece, a static contact lead piece, a conductive piece, a moving contact, and a static contact. A coil is provided on the right side of the bottom of the base, and a magnet assembly is provided on the left side of the coil. A support frame is fixed outside the magnet assembly, and a push rod on the left side of the magnet assembly is inserted into a connection groove at the bottom of the push piece. A microswitch is provided below the push piece, and a conductive piece is connected above the push piece. The right end of the conductive piece is fixed to one end of the moving contact lead piece, and a moving contact is provided on the conductive piece. A static contact is correspondingly provided above the moving contact, and the static contact is fixed on the static contact lead piece.

[0006] Preferably, the top of the push rod on the left side of the magnet assembly is arc-shaped, the magnet assembly is rotatably connected in the support frame, and the upper and lower ends of the magnet assembly can be in contact connection with the two ends of the coil.

[0007] Preferably, the push piece includes a longitudinally arranged push piece body, a connection groove, and a contact groove. A connection groove is provided at the bottom of the push piece body, and a contact groove is provided above the push piece body. The contact groove is clamped on one side of the conductive piece close to the moving contact.

[0008] Preferably, both the moving contact lead piece and the static contact lead piece extend to the left side of the base.

[0009] Preferably, there are two pairs of moving contacts and static contacts, which are arranged corresponding to each other up and down.

[0010] Preferably, the conductive piece includes a first conductive piece, a second conductive piece, a third conductive piece, and a moving contact elastic piece. The first conductive piece, the second conductive piece, and the third conductive piece are provided with slots in the center and moving contacts are respectively arranged on both sides. The first conductive piece, the second conductive piece, and the third conductive piece are stacked in a "ji" shape in sequence, and a moving contact elastic piece that bends downward is provided on the left side of the conductive piece.

[0011] Preferably, the moving contact elastic piece is provided with a slot in the middle and is integrally formed with the lowermost first conductive piece. One side of the moving contact elastic piece is fixed below the moving contact, and the other side of the moving contact elastic piece is arranged in the contact groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The magnetic latching relay with microswitch signal detection of the present utility model uses a microswitch to achieve precise detection of the magnet assembly, ensuring that the magnet assembly can accurately control the up and down displacement of the push piece;

[0014] 2. The micro switch adopted by the magnetic latching relay with micro switch signal detection of the present utility model has a relatively small volume structure, saves internal space, can accurately feedback according to the up and down displacement of the push piece, has a fast response speed, and improves the control flexibility of the magnetic latching relay.

Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the magnetic latching relay with micro switch signal detection of the present utility model;

[0016] In the figure: 1 - base, 2 - micro switch, 3 - coil, 4 - support frame, 5 - magnet assembly, 6 - push piece, 61 - push piece main body, 62 - connection groove, 63 - contact groove, 7 - moving spring lead-out piece, 8 - static spring lead-out piece, 9 - conductive piece, 91 - conductive piece one, 92 - conductive piece two, 93 - conductive piece three, 94 - moving spring elastic piece, 10 - moving contact, 11 - static contact.

Specific Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Refer to Figure 1, in the embodiment of the present utility model, a magnetic latching relay with microswitch signal detection includes a base 1, a microswitch 2, a coil 3, a support frame 4, a magnet assembly 5, a push piece 6, a moving contact lead piece 7, a static contact lead piece 8, a conductive piece 9, a moving contact 10, and a static contact 11. A coil 3 is provided on the right side of the bottom of the base 1. A magnet assembly 5 is provided on the left side of the coil 3. The top of the push rod on the left side of the magnet assembly 5 is arc-shaped. The magnet assembly 5 is rotatably connected in the support frame 4. The upper and lower ends of the magnet assembly 5 can be in contact connection with the two ends of the coil 3. The push rod on the left side of the magnet assembly 5 is inserted into the bottom of the push piece 6. The push piece 6 includes a longitudinally arranged push piece body 61, a connection groove 62, and a contact groove 63. A connection groove 62 is provided at the bottom of the push piece body 61. A contact groove 63 is provided on the upper side of the push piece body 61. The contact groove 63 is clamped on one side of the conductive piece 9 close to the moving contact 10. A microswitch 2 is provided on the lower side of the push piece 6. The upper side of the push piece 6 is connected to the conductive piece 9. The conductive piece 9 includes a first conductive piece 91, a second conductive piece 92, a third conductive piece 93, and a moving contact spring piece 94. The first conductive piece 91, the second conductive piece 92, and the third conductive piece 93 are grooved in the center, and moving contacts 10 are respectively arranged on both sides. The first conductive piece 91, the second conductive piece 92, and the third conductive piece 93 are stacked in a "ji" shape in sequence. A downwardly bent moving contact spring piece 94 is provided on the left side of the conductive piece 9. The moving contact spring piece 94 is grooved in the middle and is integrally formed with the lowermost first conductive piece 91. One side of the moving contact spring piece 94 is fixed below the moving contact 10, and the other side of the moving contact spring piece 94 is arranged in the contact groove 63. The right end of the conductive piece 9 is fixed to one end of the moving contact lead piece 7. The conductive piece 9 is provided with a moving contact 10. A static contact 11 is correspondingly provided above the moving contact 10. There are two pairs of the moving contact 10 and the static contact 11. The static contact 11 is fixed on the static contact lead piece 8. Both the moving contact lead piece 7 and the static contact lead piece 8 extend to the left side of the base 1.

[0019] The utility model relates to a magnetic latching relay with microswitch signal detection. When in use, the coil 3 is energized to generate a magnetic force to attract the magnet assembly 5 to rotate counterclockwise around the shaft on the support frame 4. The push rod on the left side of the magnet assembly 5 rotates counterclockwise, and drives the whole push piece 6 to move downward through the connecting groove 62. The lower side of the push piece 6 contacts the stainless steel push rod above the microswitch 2, so as to realize the monitoring of the displacement of the push piece 6. At this time, the contact groove 63 above the push piece 6 moves the conductive piece 9 downward, so that the moving contact 10 is separated from the static contact 11, and the loop formed by the moving spring lead-out piece 7 and the static spring lead-out piece 8 is open; when the coil 3 is energized in the reverse direction, the magnetic force generated by the coil 3 attracts the magnet assembly 5 to rotate clockwise around the shaft on the support frame 4. The push rod on the left side of the magnet assembly 5 rotates clockwise, and drives the whole push piece 6 to move upward through the connecting groove 62. The lower side of the push piece 6 leaves the stainless steel push rod above the microswitch 2, so as to realize the monitoring of the displacement of the push piece 6. At this time, the contact groove 63 above the push piece 6 moves the conductive piece 9 upward, so that the moving contact 10 contacts the static contact 11, and the loop formed by the moving spring lead-out piece 7 and the static spring lead-out piece 8 is closed. The magnetic latching relay with microswitch signal detection of the utility model can effectively detect the inside of the relay through the microswitch 2, and improves the practicability of the magnetic latching relay.

[0020] The above embodiments are illustrative of the present utility model, rather than restrictive thereof. Any solution obtained by simply changing the present utility model falls within the protection scope of the present utility model.

Claims

1. A magnetic latching relay with micro switch signal detection, characterized in that: The invention comprises a base (1), a micro switch (2), a coil (3), a support frame (4), a magnetic steel assembly (5), a push piece (6), a dynamic spring lead piece (7), a static spring lead piece (8), a conductive sheet (9), a dynamic contact (10), and a static contact (11). The base (1) is provided with a coil (3) on the right side of the bottom, the coil (3) is provided with a magnetic steel assembly (5) on the left side, the support frame (4) is fixed to the outside of the magnetic steel assembly (5), the push rod on the left side of the magnetic steel assembly (5) is inserted into the connecting groove (62) at the bottom of the push piece (6), the micro switch (2) is provided on the lower side of the push piece (6), the conductive sheet (9) is connected to the upper side of the push piece (6), the right end of the conductive sheet (9) is fixed to one end of the dynamic spring lead piece (7), the conductive sheet (9) is provided with a dynamic contact (10), the static contact (11) is correspondingly provided above the dynamic contact (10), and the static contact (11) is fixed to the static spring lead piece (8).

2. A magnetic latching relay with micro switch signal detection as claimed in claim 1, characterized in that: The top of the push rod on the left side of the magnetic steel component (5) is in an arc shape. The magnetic steel component (5) can be rotatably connected in the support frame (4). The upper and lower ends of the magnetic steel component (5) can be in contact with the two ends of the coil (3).

3. A magnetic latching relay with micro switch signal detection as claimed in claim 1, characterized in that: The pushing piece (6) comprises a pushing piece body (61), a connecting groove (62), and a contact groove (63) arranged longitudinally. The bottom of the pushing piece body (61) is provided with a connecting groove (62), and the upper side of the pushing piece body (61) is provided with a contact groove (63). The contact groove (63) is clamped to a side of the conductive piece (9) close to the moving contact (10).

4. A magnetic latching relay with micro switch signal detection as claimed in claim 1, characterized in that: The movable spring lead-out piece (7) and the static spring lead-out piece (8) both extend toward the left side of the base (1).

5. A magnetic latching relay with micro switch signal detection as claimed in claim 1, characterized in that: The movable contacts (10) and the stationary contacts (11) are provided in two pairs, which are arranged correspondingly up and down.

6. A magnetic latching relay with micro switch signal detection as claimed in claim 1, characterized in that: The conductive sheet (9) comprises a conductive sheet 1 (91), a conductive sheet 2 (92), a conductive sheet 3 (93), and a dynamic spring elastic sheet (94). The conductive sheet 1 (91), the conductive sheet 2 (92), and the conductive sheet 3 (93) are centrally slotted, and dynamic contacts (10) are arranged on both sides respectively. The conductive sheet 1 (91), the conductive sheet 2 (92), and the conductive sheet 3 (93) are stacked in sequence in the shape of a "J". A dynamic spring elastic sheet (94) bent downward is arranged on the left side of the conductive sheet (9).

7. A magnetic latching relay with micro switch signal detection as claimed in claim 6, characterized in that: The movable spring elastic sheet (94) has a groove in the middle and is integrally formed with the bottommost conductive sheet (91). One side of the movable spring elastic sheet (94) is fixed below the movable contact (10), and the other side of the movable spring elastic sheet (94) is arranged in the contact groove (63).

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