Magnetic latching contactor capable of reducing heat

Abstract

The utility model relates to the technical field of magnetic latching relays, and discloses a magnetic latching contactor capable of reducing heating, which comprises a bottom shell, the front end of the bottom shell is detachably connected with an end cover, the left and right sides of the bottom end of the inner wall of the bottom shell are fixedly connected with pins, and the top end of the pin on the right side is fixedly connected with a coil. Magnetic steel is rotatably connected to the middle of the inner wall of the bottom shell, two armatures are fixedly connected to the inner wall of the bottom shell, a pushing piece is slidably connected to the left side of the inner wall of the bottom shell, a top plate is fixedly connected to the inner wall of the pushing piece, a plurality of limiting columns are fixedly connected to the outer portion of the top plate, and a plurality of first springs are arranged in the bottom shell. The left and right sides of the top end and the middle of the bottom end of the top plate are fixedly connected with contacts. According to the utility model, the riveting mode between the contact and the top plate is changed into the welding mode, so that the gap between the contact and the top plate is enlarged, and electric arc is not easy to generate, thereby reducing heating and prolonging the service life of the device.

Description

Technical Field

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

[0002] A magnetic latching relay is a relay that uses permanent magnetism and is divided into two types: monostable and bistable. A monostable magnetic latching relay is in a stable state when there is no power, and the contacts move when the coil is powered, but the contacts return to the initial state after power is off; while a bistable magnetic latching relay closes the contacts when the coil is powered in the forward direction, and releases the contacts when the coil is powered in the reverse direction, and can maintain the current state without power.

[0003] After searching, Chinese patent announcement number: CN220604581U discloses a magnetic latching contactor, wherein a cover is provided at the upper end of the contactor body, a cavity is formed between the cover and the contactor body, the upper end of the contact support of the contactor body is placed in the cavity, and can move up and down with the coil in the contactor body being energized / de-energized, and a self-locking mechanism for maintaining the contact support in an engaged state when the coil is de-energized is provided in the cavity. On the basis of maintaining the contactor body unchanged, a cover is added at the upper end for the contact support to realize the stroke change, and when the coil of the contactor body is energized through the self-locking mechanism, the contact support moves downward and is locked by the self-locking mechanism, thereby maintaining the engaged state of the contact support when the coil is de-energized. When the coil of the contactor is de-energized, the locked state is maintained by relying on the energization of the self-locking mechanism itself, and when the self-locking mechanism is de-energized, the contact of the contactor can be quickly disconnected, relying on the energy consumption of the self-locking mechanism itself, and its energy consumption is low, and the response speed is fast and the reliability is high.

[0004] The beneficial effects in the above patent specification mention that "when the coil of the contactor loses power, the self-locking mechanism itself is powered to maintain the locked state. When the self-locking mechanism loses power, the contacts of the contactor can be quickly disconnected, relying on the energy consumption of the self-locking mechanism itself. The energy consumption is low, the response speed is fast, and the reliability is high." Although the above patent has low energy consumption, fast response speed, and high reliability, in the specific use process, because the connection between the contact and the top plate is riveted, the gap between it and the contact is smaller, it is easier to generate an arc, thereby generating more heat and reducing the service life of the device. For this reason, a magnetic holding contactor that reduces heat is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a magnetic holding contactor with reduced heat generation, aiming to improve the problem in the prior art that the connection between the contacts and the top plate is riveted, which makes the gap between it and the contacts smaller, making it easier to generate an arc, thereby generating more heat and reducing the service life of the device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The cam is provided with a plurality of springs, and the top end of the plurality of springs is provided with a plurality of springs. The plurality of springs are connected to the plurality of inner wall portions of the plurality of bottom walls of the plurality of bottom walls of the plurality of bottom walls, and the plurality of springs are connected to the plurality of inner wall portions of the plurality of bottom walls of the plurality of bottom walls. The plurality of springs are connected to the plurality of inner wall portions ...

[0008] As a further description of the above technical solution:

[0009] The protection component includes a bottom box, the inner wall of the bottom box is fixedly connected to two plug-in boxes, the top of the plug-in box is provided with a plurality of slots, and the top of the plug-in box is fixedly connected to a needle guide bucket;

[0010] As a further description of the above technical solution:

[0011] The quick-release assembly includes a card box, and the adjacent sides of the two card boxes are fixedly connected to the left and right sides of the bottom end of the bottom shell respectively. A groove is provided inside the card box, and a button is slidably connected to the inner wall of the groove. Two clamping strips are rotatably connected to the inner wall of the groove, and a rubber pad is rotatably connected to the top of the clamping strip. A second spring is arranged inside the groove. The bottom end of the card box is detachably connected to a bottom block, and the two clamping strips are in a clamping relationship with the bottom block.

[0012] As a further description of the above technical solution:

[0013] One end of the magnetic steel is in contact with one of the armatures, and the left side of the magnetic steel is in contact with the bottom end of the push piece;

[0014] As a further description of the above technical solution:

[0015] One end of the limiting column is fixedly connected to the bottom end of the copper block, and the other end of the limiting column is fixedly connected to the inner wall of the bottom shell;

[0016] As a further description of the above technical solution:

[0017] The adjacent sides of the two contacts are in contact with each other, and the bottom ends of the pins are slidably connected to the inner wall of the card slot;

[0018] As a further description of the above technical solution:

[0019] One end of the spring 1 is fixedly connected to one side of the top plate, and the other end of the spring 1 is fixedly connected to one side of the copper block, one end of another spring 1 is fixedly connected to one side of the top plate, and the other end of another spring 1 is fixedly connected to the bottom end of the inner wall of the push sheet;

[0020] As a further description of the above technical solution:

[0021] The inner wall of the button contacts one side of the outer rubber pad, and the two ends of the second spring are respectively fixedly connected to the adjacent sides of the two rubber pads.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the riveting between the contact and the top plate is changed to welding, so that the gap between the contact and the top plate becomes larger, arc is not easily generated, thereby reducing heat and improving the service life of the device. At the same time, the armature is chamfered to increase its movement stroke, making it move more smoothly and improving the connection efficiency of the device. The limit column can keep it in a straight line when the top plate moves up and down to prevent deviation. At the same time, the spring 1 will also provide a force for the device when it is operating, making the connection between the two contacts smoother.

[0024] 2. In the utility model, when the device is not used, the bottom box can be sleeved on the bottom end of the bottom shell. At this time, the pins can be introduced into the multiple card slots on the plug-in box inside the bottom box through the needle guide bucket, and then the two can be fixed by the card box and the bottom block to protect the pins. When it is needed, press the button to push the rubber pad, so that the two card strips start to rotate, and then compress the second spring, so that the card strip is separated from the engagement with the bottom block, thereby achieving the purpose of quick disassembly of the bottom box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a magnetic latching contactor for reducing heat generation proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the magnetic steel of a magnetic latching contactor for reducing heat generation proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a top plate of a magnetic latching contactor for reducing heat generation proposed by the utility model;

[0028] Figure 4 This is a structural schematic diagram of a needle guide bucket of a magnetic latching contactor that reduces heat generation proposed by the utility model;

[0029] Figure 5 The utility model discloses a structural schematic diagram of a button of a magnetic latching contactor for reducing heat generation.

[0030] Legend:

[0031] 1. Bottom shell; 2. End cover; 3. Pin; 4. Coil; 5. Magnet; 6. Armature; 7. Push piece; 8. Top plate; 9. Limit column; 10. Spring 1; 11. Contact; 12. Copper block; 13. Bottom box; 14. Needle guide bucket; 15. Card box; 16. Groove; 17. Button; 18. Card strip; 19. Rubber pad; 20. Spring 2; 21. Bottom block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0033] Reference Figure 1-Figure 2 The utility model provides an embodiment: a magnetic holding contactor for reducing heat generation, including a bottom shell 1, a front end of the bottom shell 1 is detachably connected to an end cover 2, pins 3 are fixedly connected to the left and right sides of the bottom end of the inner wall of the bottom shell 1, and a coil 4 is fixedly connected to the top of the right pin 3. The coil 4 here can be connected to the positive and negative poles of the battery by the pin 3 on the right side of the inner wall of the bottom shell 1, a magnetic steel 5 is rotatably connected to the middle part of the inner wall of the bottom shell 1, and two armatures 6 are fixedly connected to the inner wall of the bottom shell 1.

[0034] Reference Figure 2-Figure 3 , one end of the magnetic steel 5 is in contact with one of the armatures 6, and the coil 4 here will make the magnetic steel 5 rotate to the right after being energized, so that its top end is in contact with the top armature 6, and the left side of the inner wall of the bottom shell 1 is slidably connected with a push piece 7, and the left side of the magnetic steel 5 is in contact with the bottom end of the push piece 7, and the inner wall of the push piece 7 is fixedly connected with a top plate 8. When the magnetic steel 5 here turns right, it will drive the push piece 7 to move upward, thereby lifting the top plate 8, and the outside of the top plate 8 is fixedly connected with a plurality of limit posts 9;

[0035] Reference Figure 2-Figure 3The other end of the limit column 9 is fixedly connected to the inner wall of the bottom shell 1. The limit column 9 here is used to ensure that the newspaper moves in a straight line when the top plate 8 moves. A plurality of springs 10 are arranged inside the bottom shell 1. Contacts 11 are fixedly connected to the left and right sides of the top of the top plate 8 and the middle of the bottom end. Two copper blocks 12 are fixedly connected to the top of the inner wall of the end cover 2. One end of the spring 10 is fixedly connected to one side of the top plate 8, and the other end of the spring 10 is fixedly connected to one side of the copper block 12. The top plate 8 and the copper block 12 here provide stable support for the spring 10.

[0036] Reference Figure 2-Figure 3 One end of another spring 10 is fixedly connected to one side of the top plate 8, and the other end of another spring 10 is fixedly connected to the bottom end of the inner wall of the push plate 7. The top plate 8 and the push plate 7 here also provide effective support for the other spring 10. One end of the limit column 9 is fixedly connected to the bottom end of the copper block 12. The bottom end of the copper block 12 and the bottom end of the inner wall of the push plate 7 are both fixedly connected with another contact 11, and the adjacent sides of the two contacts 11 are in contact. After the top plate 8 here rises, the contacts 11 on both sides thereof will contact the contacts 11 at the bottom end of the copper block 12.

[0037] Reference Figure 1 , Figure 2 and Figure 4 The bottom end of the bottom shell 1 is detachably connected with a protection component, which includes a bottom box 13. The protection component here is used to protect the pins 3 when the device is not in use. The inner wall of the bottom box 13 is fixedly connected with two plug-in boxes, and a plurality of card slots are provided on the top of the plug-in boxes. The bottom end of the pin 3 is slidably connected to the inner wall of the card slot, and the top of the plug-in box is fixedly connected with a needle guide bucket 14. The needle guide bucket 14 here is used to guide the pin 3 into the card slot. The bottom ends of the left and right sides of the bottom shell 1 are fixedly connected with quick-release components.

[0038] Reference Figure 1 and Figure 5 The quick-release assembly includes a card box 15, and the adjacent sides of the two card boxes 15 are fixedly connected to the left and right sides of the bottom end of the bottom shell 1 respectively. The bottom shell 1 here provides a stable support for the card box 15. A groove 16 is opened inside the card box 15, and a button 17 is slidably connected to the inner wall of the groove 16. The inner wall of the groove 16 is rotatably connected to two card strips 18. Pressing the button 17 here makes it hit one of the rubber pads 19, so that the card strip 18 rotates, and the top of the card strip 18 is rotatably connected to the rubber pad 19.

[0039] Reference Figure 5The inner wall of the button 17 contacts one side of the outer rubber pad 19. A spring 20 is arranged inside the groove 16. The spring 20 here is used for the reset operation of the card strip 18. The two ends of the spring 20 are respectively fixedly connected to the adjacent sides of the two rubber pads 19. The bottom end of the card box 15 is detachably connected with a bottom block 21. The two card strips 18 are in a snap-fitting relationship with the bottom block 21. When the card strip 18 is rotated, it is disengaged from the bottom block 21, and the device can be taken out and used.

[0040] Working principle: When the coil 4 of this device is energized in the positive direction, the magnetic steel 5 rotates to the right, thereby pushing the push piece 7 to move upward, so that the push piece 7 drives the top plate 8 and the two contacts 11 on both sides thereof to contact the contacts 11 at the bottom of the copper block 12. The limit column 9 here will keep the top plate 8 in a straight line when it moves to prevent deviation. At this time, it is in the connected state. Then, the positive and negative poles of the battery are reversed, that is, the coil 4 is energized in the reverse direction, so that the magnetic steel 5 rotates to the left, thereby canceling the top force of the push piece 7. It falls and connects with the pin 3 on the left side of the bottom end of the inner wall of the bottom shell 1, and then under the action of the spring 10 in the middle of the top of the top plate 8, the contacts 11 on both sides are disconnected. At this time, it is in a disconnected state, and the contact 11 and the top plate 8 here were originally connected by riveting, but are now changed to welding, so that the gap between the two is larger, the generation of arc is reduced, thereby reducing the heat generation and increasing the service life of this device, and the armature 6 here is chamfered to increase the movement stroke, making it smoother when moving.

[0041] When the device is not used, the bottom box 13 can be put on the bottom end of the bottom shell 1. At this time, the pins 3 can be introduced into the multiple slots on the plug-in box inside the bottom box 13 through the needle guide bucket 14, and then the two can be fixed by the card box 15 and the bottom block 21 to prevent them from slipping. When it is needed, just press the button 17 inside the groove 16. At this time, the button 17 will push the outer rubber pad 19, so that the two card strips 18 start to rotate, and then compress the spring 20 to shrink it, so that the card strip 18 is disengaged from the engagement with the bottom block 21. At this time, remove it and you can use this magnetic holding contactor.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic latching contactor for reducing heat generation, comprising a bottom shell (1), characterized in that: The front end of the bottom shell (1) is detachably connected to an end cover (2); pins (3) are fixedly connected to the left and right sides of the bottom end of the inner wall of the bottom shell (1); the top of the right pin (3) is fixedly connected to a coil (4); a magnetic steel (5) is rotatably connected to the middle of the inner wall of the bottom shell (1); two armatures (6) are fixedly connected to the inner wall of the bottom shell (1); a push piece (7) is slidably connected to the left side of the inner wall of the bottom shell (1); the inner wall of the push piece (7) is fixedly connected to a top plate (8); the outer portion of the top plate (8) is fixedly connected to the inner wall of the bottom shell (1). A plurality of limit columns (9) are connected, a plurality of springs (10) are arranged inside the bottom shell (1), the top left and right sides of the top plate (8) and the middle of the bottom are fixedly connected with contacts (11), the top of the inner wall of the bottom shell (1) is fixedly connected with two copper blocks (12), the bottom end of the copper block (12) and the bottom end of the inner wall of the push sheet (7) are fixedly connected with another contact (11), the bottom end of the bottom shell (1) is detachably connected with a protective component, and the bottom ends of the left and right sides of the bottom shell (1) are fixedly connected with quick-release components.

2. A magnetic latching contactor for reducing heat generation according to claim 1, characterized in that: The protection component comprises a bottom box (13), the inner wall of the bottom box (13) is fixedly connected to two plug-in boxes, the top of the plug-in boxes is provided with a plurality of slots, and the top of the plug-in boxes is fixedly connected to a needle guide bucket (14).

3. A magnetic latching contactor for reducing heat generation according to claim 1, characterized in that: The quick-release assembly comprises a card box (15), the adjacent sides of the two card boxes (15) are respectively fixedly connected to the left and right sides of the bottom end of the bottom shell (1), a groove (16) is provided inside the card box (15), the inner wall of the groove (16) is slidably connected to a button (17), the inner wall of the groove (16) is rotatably connected to two clamping strips (18), the top end of the clamping strip (18) is rotatably connected to a rubber pad (19), a second spring (20) is arranged inside the groove (16), the bottom end of the card box (15) is detachably connected to a bottom block (21), and the two clamping strips (18) are in a clamping relationship with the bottom block (21).

4. A magnetic latching contactor for reducing heat generation according to claim 1, characterized in that: One end of the magnetic steel (5) is in contact with one of the armatures (6), and the left side of the magnetic steel (5) is in contact with the bottom end of the push piece (7).

5. A magnetic latching contactor for reducing heat generation according to claim 1, characterized in that: One end of the limiting column (9) is fixedly connected to the bottom end of the copper block (12), and the other end of the limiting column (9) is fixedly connected to the inner wall of the bottom shell (1).

6. A magnetic latching contactor for reducing heat generation according to claim 2, characterized in that: The adjacent sides of the two contacts (11) are in contact with each other, and the bottom end of the pin (3) is slidably connected to the inner wall of the slot.

7. A magnetic latching contactor for reducing heat generation according to claim 1, characterized in that: One end of the spring one (10) is fixedly connected to one side of the top plate (8), and the other end of the spring one (10) is fixedly connected to one side of the copper block (12); one end of another spring one (10) is fixedly connected to one side of the top plate (8), and the other end of another spring one (10) is fixedly connected to the bottom end of the inner wall of the push plate (7).

8. A magnetic latching contactor for reducing heat generation according to claim 3, characterized in that: The inner wall of the button (17) contacts one side of the outer rubber pad (19), and the two ends of the second spring (20) are respectively fixedly connected to the adjacent sides of the two rubber pads (19).

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