CN116190162A

CN116190162A - Magnetic latching relay

Info

Publication number: CN116190162A
Application number: CN202211620140.XA
Authority: CN
Inventors: 王文波; 陈诚盛
Original assignee: Zhejiang Guangwei Electronics Co ltd
Current assignee: Zhejiang Guangwei Electronics Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-30
Anticipated expiration: 2042-12-15
Also published as: CN116190162B

Abstract

The utility model relates to a relay's field especially relates to a magnetic latching relay, and it includes the casing, total cavity has been seted up in the casing, be provided with main helical coil on the total cavity inner wall, it has main iron core to slide in the main helical coil, be provided with first permanent magnet and the second permanent magnet that the polarity is opposite on the shells inner wall, first permanent magnet corresponds the both ends of main iron core respectively with the second permanent magnet, be provided with the trigger piece on the main iron core, be provided with the moving contact on the trigger piece, insert the pin that is used for being connected with outside load circuit electricity on the casing, be provided with the static contact on the pin, the static contact is used for switching on with the load circuit that is connected on the pin when the moving contact electricity is connected. The application has the effects of reducing the abrasion of the hinging part of the armature and the straight rod and prolonging the service life of the magnetic latching relay.

Description

Magnetic latching relay

Technical Field

The present application relates to the field of relays, and in particular, to a magnetic latching relay.

Background

The magnetic latching relay is an automatic switch, and plays a role in automatically switching on and off a circuit. In contrast, the normally closed or normally open state of the magnetic latching relay is completely dependent on the action of the permanent magnet, and the switching state is switched by triggering by a pulse electric signal with a certain width.

The magnetic latching relay often comprises a shell, wherein a moving contact and a fixed contact are arranged in the shell, when the moving contact is in contact with the fixed contact to be electrified, even if an external load circuit is conducted, an armature is rotated in the shell, permanent magnets with opposite magnetic poles are arranged on two sides of the armature, and an electromagnet is further arranged in the shell. The direction of the power on of the electromagnet controls the magnetic field direction of the electromagnet, so that different permanent magnets on the armature are attracted to drive the armature to rotate, a straight rod is hinged on the armature, and a moving contact is arranged on the straight rod.

The armature rotates to drive the straight-bar and slides to control the conflict of moving contact and static contact, at this in-process, armature and straight-bar will pivoted power transmission become straight-bar gliding power, and the in-process of transmission, and the whole focus of power is in the articulated department of armature and straight-bar, leads to here wearing and tearing big, and will produce the gap after wearing and tearing, thereby influences the sliding distance of straight-bar, and then leads to the fact the influence to the stability that the conflict electricity of moving contact and static contact is connected.

Disclosure of Invention

In order to solve the problem of large abrasion at the hinge joint of the armature and the straight rod, the application provides a magnetic latching relay.

The application provides a magnetic latching relay adopts following technical scheme:

the utility model provides a magnetic latching relay, includes the casing, total cavity has been seted up in the casing, be provided with main helical coil on the total cavity inner wall, it has main iron core to slide in the main helical coil, be provided with first permanent magnet and the second permanent magnet that the polarity is opposite on the shells inner wall, first permanent magnet corresponds the both ends of main iron core respectively with the second permanent magnet, be provided with the trigger on the main iron core, be provided with the moving contact on the trigger, it is used for the pin of being connected with outside load circuit electricity to insert on the casing, be provided with the static contact on the pin, the static contact is used for switching on with the load circuit that is connected on the pin when the moving contact electricity is connected.

Through adopting above-mentioned technical scheme, when main helical coil circular telegram comes the break-make state of change load circuit, through the slip of main iron core between first permanent magnet and second permanent magnet, directly drive the trigger piece and slide and control being close to between moving contact and the stationary contact contradict and keep away from, changed the trigger mode, reduced the wearing and tearing when triggering greatly, prolonged life.

Optionally, the trigger piece includes the trigger plate, be provided with the trigger lever on the trigger plate, set up on the main iron core and be used for supplying trigger lever male slot, total cavity is including being used for supplying the gliding trigger chamber of trigger lever and being used for supplying the gliding control chamber of trigger plate, be provided with in the casing and be used for carrying out the divided division board with control chamber and trigger chamber, set up on the division board and be used for supplying the gliding protection of trigger plate embedding to give way the groove, it is used for supplying the trigger hole that the trigger lever passed to run through on the division board, trigger plate both sides and protection give way the laminating of inslot wall.

Through adopting above-mentioned technical scheme, keep apart between load circuit and main iron core, the main spiral coil of pin through the division board, rethread protection is yielded the inslot wall and is triggered the laminating of board lateral wall to the electroslag that produces in the greatly reduced load circuit runs main iron core or main spiral coil, leads to main iron core or main spiral coil to receive the probability of damage, has played the guard action to main iron core and main spiral coil, has prolonged life.

Optionally, the trigger plate is provided with a mounting groove, the mounting groove is internally clamped with a conductive plate, the moving contact is electrically connected to the conductive plate, the mounting groove is internally provided with an elastic sheet, and the elastic sheet is abutted to the conductive plate.

Through adopting above-mentioned technical scheme, support the conducting plate tightly on the mounting groove inner wall through the shell fragment, reduced and lead to the conducting plate to lead to the fact the mounting groove inner wall deformation because of inertia because of triggering board frequently slides to lead to the conducting plate unstable, make the probability that the conflict of moving contact and static contact is unstable, improved the stability that moving contact and static contact contacted.

Optionally, a protection block is arranged on the inner wall of the triggering cavity, the protection block and the inner wall of the shell seal and protect the main spiral coil, and a through hole for the main iron core to pass through is formed in the protection block.

Through adopting above-mentioned technical scheme, protect main spiral coil including through the cooperation of protection piece shells inner wall, further reduced load circuit's electroslag and contacted main spiral coil's probability, played the guard action to main spiral coil.

Optionally, the mounting groove includes into groove and fixed slot, advance the groove and run through the trigger plate and put into with conducting plate and shell fragment, the fixed slot is used for carrying out the centre gripping to the conducting plate stably, be provided with the stopper on the fixed slot inner wall, offer on the conducting plate and be used for supplying the stopper to insert spacing groove.

Through adopting above-mentioned technical scheme, carry out the centre gripping spacing to the current-conducting plate through the fixed slot inner wall, it is spacing to the slip of current-conducting plate through the cooperation of stopper and spacing groove, has improved the stability of current-conducting plate, has still made things convenient for the dismouting of current-conducting plate.

Optionally, be provided with the clamp splice on the shell fragment, the clamp splice is used for contradicting the centre gripping on the trigger plate, be provided with the locking piece on the current-conducting plate, the branching groove has been seted up on the shell fragment, branching groove inner wall carries out the centre gripping with the locking piece, just be provided with the fixed block on the mounting groove inner wall, the fixed block inserts on the shell fragment.

Through adopting above-mentioned technical scheme, come the shell fragment centre gripping on the trigger plate through the clamp splice, played spacing effect to the slip of clamp splice, carry out the centre gripping with the locking piece through the fork pocket, spacing to the rotation of shell fragment, insert on the shell fragment through the fixed block, further limited the position of shell fragment, improved the stability of shell fragment.

Optionally, be provided with auxiliary spiral coil on the mounting groove inner wall, it has auxiliary iron core to slide in the auxiliary spiral coil, be provided with auxiliary permanent magnet in the auxiliary spiral coil, auxiliary iron core is used for pushing up and moves the bullet piece and contradicts on the current-conducting plate.

Through adopting above-mentioned technical scheme, when the shell fragment is because of live time is long, and lead to elasticity decline for the shell fragment is difficult to with the conducting plate steadily contradict on the mounting groove inner wall, the accessible assists the iron core top and moves the shell fragment, thereby make the shell fragment slide towards the direction that is close to the conducting plate, increased the compression distance of shell fragment, thereby improved the elasticity, thereby make the more stable conflict of conducting plate on the mounting groove inner wall, make the probability that can continue to use without changing the shell fragment, reduced the probability of changing the shell fragment for the maintenance, prolonged life, reached the probability of resources are saved.

Optionally, be provided with the sensing module on the trigger plate, the sensing module is used for carrying out the response with the electric current that the pin switched on, the last electricity of sensing module is connected with the energy storage module that is used for storing the electric energy, energy storage module is connected with supplementary helical coil electricity.

Through adopting above-mentioned technical scheme, come to supply power to energy storage module through sensing module, when the poor and outage of current conducting plate contact, induced current weakens or disappears, energy storage module will discharge this moment, the current direction is opposite with induced current's direction this moment, thereby trigger supplementary iron core top through supplementary helical coil and move the shell fragment, realized automatic triggering, when the poor contact appears, supplementary iron core automatic top moves the shell fragment and makes the current conducting plate stable, the poor and outage of contact has reduced to appear, the probability that causes the loss to stop of messenger's production has good commercial value.

Optionally, the auxiliary groove of stepping down has been seted up on the mounting groove inner wall, auxiliary spiral coil sets up in the auxiliary groove of stepping down, the draw-in groove has been seted up on the mounting groove inner wall, and the draw-in groove rotation is provided with the fixture block, the fixture block is contradicted simultaneously on shell fragment and draw-in groove inner wall in order to realize the joint to the shell fragment.

Through adopting above-mentioned technical scheme, when the shell fragment slides to certain position under the effect that supplementary iron core was moved on the top, contradicted on the shell fragment lateral wall through the fixture block, realized the locking to current shell fragment position for even the conducting plate contact resumes after normally making supplementary iron core return, the shell fragment also can maintain on current position, has reduced the shell fragment and has returned along with supplementary iron core and return together, leads to the conducting plate to contact bad probability once more, has improved the stability of shell fragment and conducting plate.

Optionally, the energy storage module is last to be connected with first contact, supplementary spiral coil electricity is last to be connected with the second contact, first contact sets up on the trigger plate lateral wall, the second contact sets up on the control chamber inner wall, first contact is contradicted the electricity with the second contact and is connected the electricity that realizes between energy storage module and the supplementary spiral coil and be connected.

Through adopting above-mentioned technical scheme, play the effect of switch through first contact and second contact, when main iron core is in the state when load circuit switched on, first contact is contradicted with the second contact and is closed, supplementary helical coil normally works this moment, and when main iron core is in the state of load circuit disconnection, first contact and second contact separation make supplementary helical coil's circuit disconnection, when main iron core slides and makes the normal disconnection of conducting plate circuit, the induced current in the induction circuit disappears, the probability that leads to the energy storage module mistake to trigger has improved supplementary iron core job stabilization nature.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the trigger piece is directly driven to slide to control the approaching, abutting and separating between the moving contact and the fixed contact, so that the triggering mode is changed, the abrasion during triggering is greatly reduced, and the service life is prolonged

2. The main iron core and the main spiral coil are protected, and the service life is prolonged.

3. The probability of false triggering of the energy storage module caused by disappearance of induction current in the induction circuit when the main iron core slides to normally disconnect the conducting plate circuit is reduced, and the working stability of the auxiliary iron core is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a magnetic latching relay in embodiment 1 of the present application.

Fig. 2 is a schematic cross-sectional view taken along line A-A in fig. 1.

Fig. 3 is a schematic view of the structure in which the trigger is present.

Fig. 4 is a schematic view showing the structure of the protection relief groove.

Fig. 5 is an enlarged schematic view of the structure at B in the drawing.

Fig. 6 is a schematic diagram of the overall structure of a magnetic latching relay in embodiment 2 of the present application.

Fig. 7 is a schematic cross-sectional view taken along line C-C of fig. 6.

Fig. 8 is an enlarged schematic view of the structure at D in fig. 7.

Fig. 9 is a circuit diagram used for the auxiliary spiral coil of embodiment 2 of the present application.

Reference numerals illustrate: 1. a housing; 111. a total chamber; 112. a triggering cavity; 113. a control chamber; 114. a protection abdication groove; 115. a protection block; 116. a through hole; 117. a partition plate; 118. a trigger hole; 11. a main helical coil; 12. a main iron core; 121. a slot; 122. a sleeve; 13. a first permanent magnet; 14. a second permanent magnet; 2. a trigger; 21. a trigger plate; 22. a trigger lever; 3. a moving contact; 31. pins; 32. a stationary contact; 4. a mounting groove; 41. a conductive plate; 42. a spring plate; 43. feeding into a groove; 44. a fixing groove; 45. a limiting block; 46. a limit groove; 47. clamping blocks; 48. a locking block; 481. a bifurcation groove; 482. a fixed block; 5. an auxiliary helical coil; 51. an auxiliary iron core; 52. an auxiliary permanent magnet; 53. an auxiliary abdication groove; 54. a clamping groove; 55. a clamping block; 56. a cylinder; 6. an induction module; 61. an energy storage module; 62. a first contact; 63. and a second contact.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-9.

Embodiment 1 of the present application discloses a magnetic latching relay. Referring to fig. 1, 2 and 3, the magnetic latching relay includes a housing 1, a main chamber 111 is provided in the housing 1, a sleeve 122 is fixedly connected to an inner wall of the main chamber 111, the number of the sleeves 122 is two, the two sleeves 122 are symmetrically and fixedly connected to inner walls of the main chamber 111 facing each other, the two sleeves 122 are respectively sleeved with a main spiral coil 11, winding directions of the main spiral coils 11 wound on the two sleeves 122 are the same, and current directions in the two main spiral coils 11 are the same. The same main iron core 12 slides in the sleeve 122, the main iron core 12 extends from the inside of one sleeve 122 to the inside of the other sleeve 122, a first permanent magnet 13 and a second permanent magnet 14 with opposite polarities are fixedly connected to the inner wall of the shell 1, the first permanent magnet 13 and the second permanent magnet 14 are respectively positioned in the two sleeves 122, the first permanent magnet 13 and the second permanent magnet 14 are positioned at positions where the two sleeves 122 are far away from each other, and the first permanent magnet 13 and the second permanent magnet 14 respectively correspond to two ends of the main iron core 12. The trigger piece 2 is arranged on the middle section of the main iron core 12, the movable contact 3 is arranged on the trigger piece 2, six pins 31 which are used for being electrically connected with an external load circuit are inserted into the shell 1, every two pins 31 are in a group, and the pins 31 penetrate through the side wall of the shell 1 from the inside of the shell 1 to the outside. The pins 31 are fixedly connected with fixed contacts 32, and when the main iron core 12 slides to enable the movable contact 3 to be in contact with the fixed contacts 32 to be electrically connected, an external load circuit connected to the pins 31 is conducted.

Referring to fig. 3, the trigger piece 2 includes a trigger plate 21, a trigger rod 22 is fixedly connected to the trigger plate 21, a slot 121 for inserting the trigger rod 22 is formed in the main iron core 12, and the side wall of the trigger rod 22 abuts against the inner wall of the slot 121, so that the main iron core 12 drives the trigger plate 21 to slide.

Referring to fig. 2, 3 and 4, the main chamber 111 includes a trigger chamber 112 for sliding the trigger rod 22 and a control chamber 113 for sliding the trigger plate 21, the trigger chamber 112 is communicated with the control chamber 113, and a partition plate 117 for separating the control chamber 113 from the trigger chamber 112 is fixedly connected in the housing 1. The partition plate 117 is provided with a protection yielding groove 114 for embedding and sliding the trigger plate 21, two side walls of the length direction of the trigger plate 21 are abutted against and attached to the inner wall of the protection yielding groove 114, the partition plate 117 is penetrated with a trigger hole 118, the trigger hole 118 penetrates to the trigger cavity 112 from the inner wall of the protection yielding groove 114, and the trigger rod 22 penetrates and slides from the trigger hole 118.

Referring to fig. 2 and 3, two protection blocks 115 are fixedly connected to the inner wall of the triggering cavity 112, the two protection blocks 115 respectively enclose the two sleeves 122, the side walls of the protection blocks 115 and the inner wall of the shell 1 integrally enclose and protect the sleeves 122, through holes 116 for the main iron core 12 to pass through are formed in the side walls, close to each other, of the two protection blocks 115, and a slot 121 in the main iron core 12 is located at the middle section of the main iron core 12 between the two protection blocks 115. In this embodiment, the housing 1, the protection block 115, and the trigger plate 21 are made of insulating high temperature resistant material.

Referring to fig. 2, 4 and 5, the trigger plate 21 is provided with a mounting groove 4, one set of pins 31 corresponds to one mounting groove 4, the mounting groove 4 includes a slot 43 and a fixing groove 44, the sliding direction of the trigger plate 21 is a length direction, the trigger plate 21 points from the control cavity 113 to the trigger cavity 112 to be a width direction, and the remaining direction is a thickness direction of the trigger plate 21. The inlet groove 43 penetrates the trigger plate 21 in the thickness direction, and the inlet groove 43 also penetrates from one side in the width direction of the trigger plate 21, while the fixing groove 44 penetrates only the trigger plate 21 in the thickness direction.

Referring to fig. 5, a conductive plate 41 is inserted and locked into the fixing groove 44, the length direction of the conductive plate 41 is perpendicular to the length direction of the trigger plate 21, and the two moving contacts 3 are electrically connected to both ends of the conductive plate 41 in the length direction. The two pins 31 of the same group are respectively located on two sides of the trigger plate 21 in the length direction, and the two pins 31 of the same group are respectively and correspondingly electrically connected with the movable contacts 3 on two ends of the corresponding conductive plate 41.

Referring to fig. 5, a limiting block 45 is fixedly connected to the inner wall of the fixed slot 44, the length direction of the limiting block 45 extends along the length direction of the trigger plate 21, a limiting slot 46 for inserting the limiting block 45 is formed in the side wall of the conductive plate 41, the forming direction of the limiting slot 46 is matched with the extending direction of the limiting block 45, and the side wall of the limiting block 45 is abutted against the inner wall of the limiting slot 46. The conductive plate 41 is inserted from the inlet groove 43 and then slid into the fixing groove 44.

Referring to fig. 5, the spring plate 42 is installed in the slot 43, the length direction of the spring plate 42 is parallel to the length direction of the conductive plate 41, two ends of the spring plate 42 in the length direction are abutted against two end side walls of the conductive plate 41 in the length direction, and a side wall of the middle section of the spring plate 42 is abutted against the inner wall of the slot 43. The inner wall of the inlet groove 43 is fixedly connected with a fixed block 482, and the fixed block 482 penetrates through the side wall of the middle section of the elastic sheet 42 to fix the position of the elastic sheet 42.

Referring to fig. 5, four clamping blocks 47 are fixedly connected to the middle section of the elastic sheet 42, two clamping blocks 47 are arranged in a group, and the two groups of clamping blocks 47 respectively clamp and abut against the side walls on two sides of the trigger plate 21 in the length direction. The movable contact 3 is fixedly connected with a locking block 48 on the side wall far away from the corresponding pin 31, the locking block 48 penetrates through the side wall of the conductive plate 41 along the thickness direction of the conductive plate 41, the locking block 48 is in interference fit with the conductive plate 41, bifurcation grooves 481 are formed in the side walls at two ends of the elastic piece 42 in the length direction, the end part, far away from the corresponding pin 31, of the locking block 48 is located in the bifurcation grooves 481, and the locking block 48 is clamped by the inner wall of the bifurcation grooves 481.

The implementation principle of the magnetic latching relay in the embodiment of the application is as follows: when the state of the magnetic latching relay needs to be changed, a corresponding magnetic field can be generated by energizing the main spiral coil 11, the magnetic field can endow the main iron core 12 with polarity, the polarity of the main iron core 12 can enable the main iron core 12 to attract the main iron core to the first permanent magnet 13 or the second permanent magnet 14, and the main iron core 12 slides to drive the trigger plate 21 to slide, so that the movable contact 3 is driven to slide towards a direction approaching or separating from the corresponding fixed contact 32.

Example 2:

unlike embodiment 1, referring to fig. 6, 7 and 8, two auxiliary abdicating grooves 53 are formed on the inner wall of each of the inlet grooves 43, the two auxiliary abdicating grooves 53 are symmetrically distributed on two sides of the fixed block 482, the depth direction of the auxiliary abdicating groove 53 is formed along the length direction of the trigger plate 21, a cylinder 56 and an auxiliary permanent magnet 52 are fixedly connected to the inner wall of the auxiliary abdicating groove 53 far from the inlet groove 43, and the length direction of the cylinder 56 is parallel to the length direction of the trigger plate 21.

Referring to fig. 8, an auxiliary spiral coil 5 is wound around a cylinder 56, an auxiliary iron core 51 slides in the cylinder 56, one end of the auxiliary iron core 51 abuts against the auxiliary permanent magnet 52, and the other end of the auxiliary iron core 51 abuts against the side wall of the middle section of the corresponding spring 42.

Referring to fig. 8 and 9, an induction module 6 is fixedly connected in the trigger plate 21, a VCC inlet terminal of the induction module 6 is electrically connected with the conductive plate 41, the induction module 6 is used for inducing current conducted by the pins 31, in this embodiment, the induction module 6 may use a mutual inductance coil, an iron core with a reinforcing effect may be inserted into the mutual inductance coil, and the induction module 6 is used for inducing current passing through the elastic sheet 42 and the conductive plate 41. The sensing module 6 is electrically connected with an energy storage module 61 for storing electric energy, in this embodiment, the energy storage module 61 may be a small energy storage battery, such as a button battery, and the energy storage module 61 is electrically connected with the auxiliary spiral coil 5. One end of the induction module 6 is electrically connected to one end of the energy storage module 61, the other end of the energy storage module 61 is electrically connected to one end of the auxiliary spiral coil 5, and the other end of the auxiliary spiral coil 5 is electrically connected to the other end of the induction module 6.

Referring to fig. 8, a clamping groove 54 is formed in the inner wall of the slot 43, the depth direction of the clamping groove 54 is perpendicular to the length direction of the trigger plate 21, a clamping block 55 is rotated in the clamping groove 54, the end of the clamping block 55 outside the clamping groove 54 is used for abutting against the side wall of the middle section of the elastic piece 42, the rotating shaft of the clamping block 55 is inserted and rotated on the inner wall of the clamping groove 54, a torsion spring is sleeved on the rotating shaft of the clamping block 55, one end of the torsion spring is fixedly connected to the clamping block 55, and the other end of the torsion spring is fixedly connected to the inner wall of the clamping groove 54, so that the length direction of the clamping block 55 is continuously kept parallel to the depth direction of the clamping groove 54.

Referring to fig. 8 and 9, when the conductive plate 41 and the elastic sheet 42 are normally conducted, the induced current induced by the induction module 6 flows to the positive electrode of the energy storage module 61 to charge the energy storage module 61, and at this time, the magnetic field generated by the auxiliary spiral coil 5 imparts polarity to the auxiliary iron core 51, and the auxiliary iron core 51 is attracted by the auxiliary permanent magnet 52, so that the auxiliary iron core 51 slides away from the elastic sheet 42.

Referring to fig. 8 and 9, when the conductive plate 41 is in poor contact due to insufficient elastic force of the elastic sheet 42, the conductive plate 41 is disconnected from the current in the elastic sheet 42, at this time, the induced current of the sensing module 6 is reduced or eliminated, so that the energy storage module 61 starts to output current from the positive electrode, at this time, the current flowing through the auxiliary spiral coil 5 is opposite to the previous direction, the auxiliary spiral coil 5 generates a magnetic field to impart polarity to the auxiliary iron core 51, at this time, the auxiliary iron core 51 slides towards the outside of the auxiliary abdicating groove 53 under the action of the repulsive magnetic force of the auxiliary permanent magnet 52, and the auxiliary iron core 51 pushes the elastic sheet 42 to slide towards the direction approaching to the corresponding conductive plate 41. In the sliding process, the elastic piece 42 pushes the clamping block 55 to be located at the end part outside the clamping groove 54, so that the clamping block 55 rotates towards the inside of the clamping groove 54, and when the elastic piece 42 slides over the clamping block 55, the clamping block 55 resets under the action of self gravity and the elasticity of the torsion spring, so that the side wall of the clamping block 55 is simultaneously abutted against the side wall of the elastic piece 42, which is opposite to the conductive plate 41, and the inner wall of the clamping groove 54.

Referring to fig. 7 and 9, the energy storage module 61 is electrically connected with a first contact 62, the auxiliary spiral coil 5 is electrically connected with a second contact 63, the energy storage module 61 and the auxiliary spiral coil 5 are electrically connected by the electrical connection of the first contact 62 and the second contact 63, and the first contact 62 and the second contact 63 function as a switch in the electrical connection of the energy storage module 61 and the auxiliary spiral coil 5. The first contact 62 is fixedly connected to the end side wall of the trigger plate 21 in the length direction, the second contact 63 is fixedly connected to the inner wall of the control cavity 113 facing the trigger plate 21, the first contact 62 and the second contact 63 are both located in the sliding direction of the trigger plate 21, and the first contact 62 and the second contact 63 are in abutting electrical connection to achieve electrical connection between the energy storage module 61 and the auxiliary spiral coil 5.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A magnetic latching relay, characterized by: including casing (1), total cavity (111) have been seted up in casing (1), be provided with main helical coil (11) on total cavity (111) inner wall, it has main iron core (12) to slide in main helical coil (11), be provided with first permanent magnet (13) and second permanent magnet (14) that the polarity is opposite on casing (1) inner wall, first permanent magnet (13) correspond the both ends of main iron core (12) respectively with second permanent magnet (14), be provided with trigger piece (2) on main iron core (12), be provided with moving contact (3) on trigger piece (2), insert on casing (1) and be used for being connected with outside load circuit pin (31), be provided with stationary contact (32) on pin (31), stationary contact (32) are used for switching on with the load circuit who is connected on pin (31) when moving contact (3) electricity.

2. A magnetic latching relay according to claim 1, wherein: trigger piece (2) are including trigger board (21), be provided with trigger lever (22) on trigger board (21), offer on main iron core (12) and be used for supplying trigger lever (22) male slot (121), total cavity (111) are including being used for supplying trigger lever (22) gliding trigger chamber (112) and being used for supplying trigger board (21) gliding control chamber (113), be provided with in casing (1) and be used for carrying out divided division board (117) with control chamber (113) with trigger chamber (112), offer on division board (117) and be used for supplying trigger board (21) embedding gliding protection to give way groove (114), run through on division board (117) and be used for supplying trigger lever (22) to pass trigger hole (118), trigger board (21) both sides and protection give way groove (114) inner wall laminating.

3. A magnetic latching relay according to claim 2, wherein: the trigger plate (21) is provided with a mounting groove (4), a conductive plate (41) is clamped in the mounting groove (4), the moving contact (3) is electrically connected to the conductive plate (41), the mounting groove (4) is internally provided with an elastic sheet (42), and the elastic sheet (42) is abutted to the conductive plate (41).

4. A magnetic latching relay according to claim 2, wherein: the trigger cavity (112) is provided with a protection block (115) on the inner wall, the protection block (115) and the inner wall of the shell (1) seal and protect the main spiral coil (11) inside, and the protection block (115) is provided with a through hole (116) for the main iron core (12) to pass through.

5. A magnetic latching relay according to claim 3, wherein: the mounting groove (4) comprises a groove (43) and a fixed groove (44), the groove (43) penetrates through the trigger plate (21) to enable the conductive plate (41) and the elastic sheet (42) to be placed in, the fixed groove (44) is used for clamping and stabilizing the conductive plate (41), a limiting block (45) is arranged on the inner wall of the fixed groove (44), and a limiting groove (46) for enabling the limiting block (45) to be inserted into the limiting groove is formed in the conductive plate (41).

6. A magnetic latching relay according to claim 3, wherein: be provided with clamp splice (47) on shell fragment (42), clamp splice (47) are used for contradicting the centre gripping on trigger plate (21), be provided with locking piece (48) on conducting plate (41), bifurcation groove (481) have been seted up on shell fragment (42), bifurcation groove (481) inner wall carries out the centre gripping with locking piece (48), just be provided with fixed block (482) on mounting groove (4) inner wall, fixed block (482) are inserted on shell fragment (42).

7. A magnetic latching relay according to claim 3, wherein: be provided with auxiliary spiral coil (5) on mounting groove (4) inner wall, it has auxiliary iron core (51) to slide in auxiliary spiral coil (5), be provided with auxiliary permanent magnet (52) in auxiliary spiral coil (5), auxiliary iron core (51) are used for pushing up and move bullet piece (42) conflict on current-conducting plate (41).

8. A magnetic latching relay according to claim 7, wherein: the trigger plate (21) is provided with an induction module (6), the induction module (6) is used for inducing current conducted by the pins (31), the induction module (6) is electrically connected with an energy storage module (61) for storing electric energy, and the energy storage module (61) is electrically connected with the auxiliary spiral coil (5).

9. A magnetic latching relay according to claim 7, wherein: the auxiliary stepping down groove (53) is formed in the inner wall of the mounting groove (4), the auxiliary spiral coil (5) is arranged in the auxiliary stepping down groove (53), the clamping groove (54) is formed in the inner wall of the mounting groove (4), the clamping groove (54) is rotationally provided with the clamping block (55), and the clamping block (55) is simultaneously abutted to the inner wall of the elastic piece (42) and the inner wall of the clamping groove (54) to realize clamping connection of the elastic piece (42).

10. A magnetic latching relay according to claim 8, wherein: the energy storage module (61) is electrically connected with a first contact (62), the auxiliary spiral coil (5) is electrically connected with a second contact (63), the first contact (62) is arranged on the side wall of the trigger plate (21), the second contact (63) is arranged on the inner wall of the control cavity (113), and the first contact (62) is in interference electrical connection with the second contact (63) to realize electrical connection between the energy storage module (61) and the auxiliary spiral coil (5).