Magnetic latching relay assembly

Abstract

The magnetic latching relay assembly comprises a magnetic latching relay, a base and a driving piece, an electromagnetic system, an armature, a push rod, a magnetic steel part and a main contact assembly are installed in the magnetic latching relay, the electromagnetic system is connected with the armature, the armature is connected with the push rod, the push rod is connected with the main contact assembly, and the main contact assembly comprises a moving contact piece and a static contact piece. The magnetic steel part is arranged beside the main contact assembly, a conductive plug connector is arranged on the base, a moving contact piece and a static contact piece of the magnetic latching relay extend out of the shell to form a first plug pin, the first plug pin is in plug-in fit with the conductive plug connector, and the conductive plug connector extends out of the base to extend in the direction opposite to the magnetic latching relay to form a second plug pin. The armature is provided with an armature driven part which is in driving cooperation with the driving piece, and the driving piece is provided with a driving piece installation part which is in driving cooperation with the armature driven part and an indication part which indicates the connection state of the main contact assembly. According to the invention, the main contact connection state can be manually switched and indicated, and plugging and unplugging are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low voltage apparatus, concretely relates to a magnetic latching relay assembly. BACKGROUND

[0002] The magnetic latching relay is a new type of relay, and is also an automatic switch, and like other electromagnetic relays on the market, plays the role of automatic connection and disconnection for the circuit, and the difference is that the normally closed or normally open state of the magnetic latching relay depends on the action of the permanent magnet, and the switching of the switch state is completed by triggering a certain width of pulse electric signal, and the main contact opening and closing state is maintained by the magnetic force generated by the permanent magnet, when the main contact of the relay needs to be open or closed, only the positive (negative) DC pulse voltage is needed to excite the coil, and the relay completes the state conversion of opening and closing in an instant. When the main contact is in the maintaining state, the coil does not need to continue to be energized, and only the magnetic force of the permanent magnet can maintain the state of the relay unchanged.

[0003] In the prior art, the magnetic latching relay has the following problems: (1) the magnetic latching relay drives the relay to act and maintains the current state through the pulse signal, when the loop fails, the external state of the main contact of the relay cannot be judged. (2) the on-off state of the main contact of the magnetic latching relay cannot be manually switched. (3) when the magnetic latching relay is used for circuit board installation, it is directly welded on the circuit board, and it is very troublesome to replace the magnetic latching relay when the magnetic latching relay reaches the service life or fails. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming at least one defect of the prior art, and provides a magnetic latching relay assembly capable of manually switching the on-off state of the main contact of the magnetic latching relay and convenient to plug in and pull out.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The application provides a magnetic latching relay assembly, which comprises a magnetic latching relay, the magnetic latching relay comprises a shell, an electromagnetic system, an armature, a push rod, a magnetic steel part and a main contact assembly are installed in the shell, the electromagnetic system is connected with the armature, the armature is connected with the push rod, the push rod is connected with the main contact assembly, the main contact assembly comprises a moving contact piece and a stationary contact piece, and the magnetic steel part is arranged beside the main contact assembly.

[0007] The magnetic latching relay is plugged into the base to achieve electrical connection, the base is provided with a conductive plug, the movable contact piece and the static contact piece of the magnetic latching relay extend out of the shell to form a first pin, the first pin is plugged into the conductive plug, the conductive plug extends out of the base to the direction opposite to the magnetic latching relay to form a second pin, the armature is provided with an armature driven part driven by the driving part, the driving part is provided with a driving part mounting part driven by the armature driven part, a driving part operation part extending out of the shell, and an indication part for indicating the on state of the main contact assembly.

[0008] In a possible implementation manner, the driving part is slidingly arranged on the shell, the driving part includes a driving part sliding plate, a driving part operation part and a driving part mounting part, the driving part operation part and the driving part mounting part are arranged on two sides of the driving part sliding plate, the driving part mounting part is driven by the armature driven part, and the indication part is arranged on the driving part operation part and / or the driving part sliding plate.

[0009] In a possible implementation manner, the shell is provided with a first through hole, the driving part is arranged in the first through hole, and the driving part sliding plate is attached to the inner wall of the shell; the indication part is arranged on the driving part sliding plate and located on at least one side of the driving part operation part, and the indication part is displayed in the first through hole or hidden in the shell during reciprocating sliding of the driving part.

[0010] In a possible implementation manner, the indication part is located on both sides of the driving part operation part, two state display marks are arranged on the indication parts on the two sides respectively, and the two state display marks are alternately hidden in the shell during reciprocating sliding of the driving part.

[0011] In a possible implementation manner, the first through hole has an avoiding area, the driving part operation part extends to a limiting boss on both sides, a gap is formed between the limiting boss and the driving part sliding plate, the driving part operation part extends out of the shell from the first through hole, the two limiting bosses extend out of the shell from the avoiding area, and the shell is clamped into the gap between the limiting boss and the driving part sliding plate.

[0012] In a possible implementation manner, two first limiting tables are arranged on the inner wall of the shell in parallel on both sides of the first through hole, and the driving part sliding plate is arranged between the two first limiting tables and limited by the two first limiting tables.

[0013] In a possible implementation manner, the driving part operation part is a pushing boss, a pushing rod or a pushing groove,

[0014] The driving member mounting portion is a mounting groove, the armature driven portion is a force receiving plate or a force receiving rod, and the mounting groove is drivingly matched with the force receiving plate or the force receiving rod; or the driving member mounting portion is a mounting boss or a mounting rod, the armature driven portion is a force receiving groove, and the mounting boss or the mounting rod is drivingly matched with the force receiving groove.

[0015] In a possible implementation, the armature driven portion is a force receiving plate, two sides of the armature driven portion are provided with two-sided clamping plates, and the mounting groove is formed between the two-sided clamping plates; and an arc-shaped protrusion is arranged at an end of the force receiving plate.

[0016] In a possible implementation, the magnetic latching relay further comprises an auxiliary contact assembly mounted in the housing, the auxiliary contact assembly comprises oppositely arranged auxiliary moving and stationary contact springs, the push rod comprises an auxiliary contact pushing portion, the auxiliary contact pushing portion is matched with the auxiliary moving contact spring to drive the auxiliary moving contact spring to contact or separate from the auxiliary stationary contact spring, the auxiliary moving and stationary contact springs respectively comprise downwardly extending first and second lead-out portions, the conductive connector comprises at least two first clamping springs and at least two second clamping springs, the first pin is inserted into the at least two first clamping springs, and the first and second lead-out portions are respectively inserted into the two second clamping springs.

[0017] In a possible implementation, the first clamping spring is provided with a protruding third buckle or a third clamping groove at two sides, the base is provided with a third clamping groove or a third buckle, and the third buckle and the third clamping groove are matched to fix the third clamping groove; the conductive plate extends to two sides and is provided with a second limiting table; and the second clamping spring is provided with a third limiting table protruding to two sides at a middle portion.

[0018] In a possible implementation, the base comprises at least one first buckle, the first buckle comprises a first buckle head and a first buckle arm which are integrally formed, the first buckle arm extends to the magnetic latching relay, the first buckle head is arranged at an end of the first buckle arm, and an included angle between the first buckle head and the first buckle arm is an acute angle or a right angle; the housing is provided with at least one first clamping groove, and the first buckle head is matched with the first clamping groove to be fixed.

[0019] In a possible implementation, the auxiliary contact assembly further comprises an auxiliary contact protective cover, and the auxiliary moving and stationary contact springs are arranged in the auxiliary contact protective cover.

[0020] In one possible implementation, the auxiliary moving spring plate and the auxiliary static spring plate are arranged in parallel along the magnetic holding relay height direction, the upper end of the auxiliary moving spring plate is provided with an auxiliary moving contact relative to one side of the auxiliary static spring plate, the upper end of the auxiliary static spring plate is provided with an auxiliary static contact relative to one side of the auxiliary moving spring plate, the auxiliary moving contact and the auxiliary static contact are arranged oppositely, the auxiliary moving spring plate is higher than the auxiliary static spring plate, and the high area forms an auxiliary contact driven part; the auxiliary contact driving part of the push rod comprises a first recess, the first recess is higher than the auxiliary static spring plate, the auxiliary contact driven part is arranged in the first recess, and the push rod drives the auxiliary moving spring plate to move through the first recess.

[0021] In one possible implementation, the push rod further comprises a main contact driving part, the main contact driving part is in a plate structure, and the main contact driving part is lower than the auxiliary contact driving part; the main contact driving part comprises a first mounting hole, a second mounting hole and a third mounting hole, the armature lower part is provided with a support arm, the main contact assembly further comprises a moving spring plate, the support arm is arranged in the first mounting hole, the moving contact plate bottom end is arranged in the second mounting hole, and the moving spring plate bottom end is arranged in the third mounting hole.

[0022] In one possible implementation, the shell comprises a base and a shell body, the electromagnetic system, the armature, the push rod, the magnetic steel part and the main contact assembly are arranged on the base, the shell body covers the base to wrap the electromagnetic system, the armature, the push rod, the magnetic steel part and the main contact assembly, and the driving part is arranged on the shell body; the first pin is inserted into the conductive plug of the base in plug connection.

[0023] In one possible implementation, the magnetic holding relay further comprises two groups of magnetic steel parts with opposite magnetism arranged beside the main contact assembly, the two groups of magnetic steel parts are arranged oppositely along the magnetic holding relay width direction, the magnetic steel part comprises a blow arc magnetic steel and a magnetic shield arranged in a stack, the magnetic shield semi-wraps one side of the magnetic shield, the base is provided with two groups of first blocking walls with a semi-enclosing structure, the magnetic steel part is inserted into the first blocking wall, the magnetic steel part is in interference fit with the first blocking wall, and after the shell is arranged on the base, the magnetic shield is in fit with the first blocking wall to wrap the corresponding blow arc magnetic steel.

[0024] In one possible implementation, the driving part sliding plate is further provided with a second limiting boss, the second limiting boss is arranged in interval with the limiting boss in the sliding direction of the driving part, the driving part slides to the avoiding area direction, the second limiting boss abuts against one side of the avoiding area, and the limiting boss cannot reach the avoiding area.

[0025] Compared with the prior art, the magnetic latching relay of the application comprises a base and a shell, and an electromagnetic system, an armature, a push rod, a magnetic steel part and a main contact assembly mounted on the base, the electromagnetic system is connected with the armature, the armature is connected with the push rod, the push rod is connected with the main contact assembly, the magnetic steel part is placed beside the main contact assembly, the shell is mounted in cooperation with the base, the electromagnetic system, the armature, the push rod, the magnetic steel part and the main contact assembly are placed inside the shell and wrapped by the shell, an armature driven part is arranged on the armature, a driving piece cooperating with the armature driven part is arranged on the shell, and the manual switching of the main contact on state of the magnetic latching relay can be realized by operating the driving piece; an indicating part is arranged on the driving piece, a state display mark is arranged on the indicating part, and the state display mark can indicate different main contact states as the position of the indicating part changes; a base is arranged, the magnetic latching relay is electrically connected with the base through plug-in cooperation, a conductive connecting piece is arranged on the base, the magnetic latching relay comprises a first pin, the first pin is electrically connected with the conductive connecting piece through plug-in cooperation, the conductive connecting piece extends out of the base to extend to a second pin in a direction opposite to the magnetic latching relay, the base is electrically connected with a circuit board through the second pin, and the magnetic latching relay is plugged into the base, so that the magnetic latching relay is simple to install and convenient to disassemble and replace.

[0026] Further, the driving piece comprises a driving piece sliding plate, a driving piece operating part and a driving piece mounting part, the driving piece operating part and the driving piece mounting part are arranged on two surfaces of the driving piece sliding plate, the driving piece operating part is arranged outside the shell and is used to drive the driving piece to slide, the driving piece mounting part is arranged inside the shell and is driven in cooperation with the armature driven part, the indicating part is arranged on the driving piece sliding plate or the driving piece operating part, the indicating part faces the outside of the shell after the driving piece is mounted with the shell, the main contact state inside the magnetic latching relay can be changed by reciprocating sliding of the driving piece by operating the driving piece operating part, the "ON / OFF" state display mark can be arranged on the indicating part during the sliding process of the driving piece, the position of the indicating part also changes during the sliding process of the driving piece, for example, "ON" is displayed outside and "OFF" is covered by the shell to indicate that the main contact is on; "OFF" is displayed outside and "ON" is covered by the shell to indicate that the main contact is off, so as to prompt the operator and identify the on state of the main contact of the magnetic latching relay.

[0027] Further, the magnetic latching relay provided by the application is provided with an auxiliary contact assembly on the base, the opening and closing state of the main contact in the relay is judged through the opening and closing state of the auxiliary contact assembly, the auxiliary contact assembly comprises an auxiliary moving contact and an auxiliary static contact arranged oppositely, and an auxiliary contact protective cover, the auxiliary moving contact and the auxiliary static contact can be arranged in the auxiliary contact protective cover, the auxiliary moving contact and the auxiliary static contact can be protected through the auxiliary contact protective cover, the pollution of the auxiliary moving contact and the auxiliary static contact in the use process is reduced, and the reliability of the auxiliary contact contact is improved, the smoke caused by the arc ablation generated by the on-off of the main contact assembly can affect the on performance of the auxiliary contact, therefore, the auxiliary contact protective cover can also avoid the pollution of the auxiliary contact.

[0028] Further, the auxiliary moving contact and the auxiliary static contact are arranged in parallel, the auxiliary moving contact is higher than the auxiliary static contact, and an auxiliary contact driven part is formed in the high area, and the application further comprises a pushing rod matched with the auxiliary contact assembly, an auxiliary contact pushing part of the pushing rod comprises a first groove, the first groove is higher than the auxiliary static contact, the auxiliary contact driven part is arranged in the first groove, the first groove is driven to move to push the auxiliary moving contact and the auxiliary static contact to contact or separate, and the design has the advantages that the auxiliary lead-in piece which is arranged in the magnetic latching relay and connected with the auxiliary moving contact is not needed, the structure is small, the space in the magnetic latching relay is saved, and installation is more convenient.

[0029] Further, compared with the coil bone shaft in a circular structure, the coil formed by the same length of wire has a square structure, the space from the yoke to the outer diameter of the coil is increased, the armature mounted on the yoke has sufficient movement space, the length from the shaft center of the coil bone shaft to the yoke is further shortened, and the overall length of the electromagnetic system is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the magnetic latching relay of the utility model;

[0031] Figure 2 is an explosion schematic view of the magnetic latching relay of the utility model;

[0032] Figure 3 is a structural schematic view of the electromagnetic system, the armature, the pushing rod, the main contact assembly and the auxiliary contact assembly of the magnetic latching relay of the utility model after installation;

[0033] Figure 4 is Figure 3 a front view;

[0034] Figure 5 is a sectional view of the magnetic latching relay of the utility model;

[0035] Figure 6 is the structure schematic diagram of the magnetic latching relay and base after installation of the utility model;

[0036] Figure 7 is the structure schematic diagram of the base of the utility model;

[0037] Figure 8 is the structure schematic diagram of the second clamp spring of the utility model;

[0038] Figure 9 is the structure schematic diagram of the first clamp spring of the utility model;

[0039] Figure 10 is the sectional view of the base of the utility model;

[0040] Figure 11 is the structure schematic diagram of the auxiliary contact assembly of the utility model;

[0041] Figure 12 is the structure schematic diagram of the push rod of the utility model;

[0042] Figure 13 is the structure schematic diagram of the auxiliary contact protective cover of the utility model;

[0043] Figure 14 is the structure schematic diagram of the armature of the utility model;

[0044] Figure 15 is the structure schematic diagram of the main contact assembly of the utility model;

[0045] Figure 16 is the structure schematic diagram of the base of the utility model;

[0046] Figure 17 is the structure schematic diagram of the electromagnetic system of the utility model;

[0047] Figure 18 is the structure schematic diagram of the shell of the utility model;

[0048] The reference signs in the drawings include: a magnetic latching relay 8; a base 100; an electromagnetic system 1; an armature 2; a push rod 3; a magnetic steel part 4; a main contact assembly 5; a driving piece 25; an armature receiving part 26; a driving piece sliding plate 251; a driving piece operating part 252; a driving piece mounting part 253; an arc-shaped protrusion 261; a first through hole 102; a first limiting table 103; an avoidance area 1021; a limiting protrusion 2521; a second limiting protrusion 2511; a base 7; a first clamping spring 71; a second clamping spring 72; a first spring sheet 711; a conductive plate 712; a second spring sheet 721; a conductive rod 722; a third buckle 713; a second limiting table 714; a third limiting table 723; a first buckle 73; a first buckle head 731; a first buckle arm 732; a first clamping groove 733; a second clamping groove 741; a second buckle 742; an auxiliary contact assembly 6; an auxiliary moving spring sheet 61; an auxiliary static spring sheet 62; an auxiliary contact receiving part 63; an auxiliary contact pushing part 31; a first recess 32; an auxiliary moving contact 611; an auxiliary static contact 621; a first leading-out part 612; a second leading-out part 622; an auxiliary contact protective cover 64; a first mounting structure 641; a second mounting structure 642; a second recess 643; a main contact pushing part 33; a first mounting hole 331; a second mounting hole 332; a third mounting hole 333; a support arm 21; a moving contact sheet 51; a moving spring sheet 52; a moving spring sheet mounting part 521; a static contact sheet 53; a strip-shaped protrusion 334; a coil skeleton 11; a yoke 12; a coil skeleton shaft 13; a coil skeleton shaft mounting part 131; a yoke mounting part 121; a control part 122; a first sliding groove 123; a third recess 24; a fifth mounting structure 22; a sixth mounting structure 23; a housing 101; a blow arc magnetic steel 41; a magnetic separation sheet 42; a first blocking wall 43. DETAILED DESCRIPTION

[0049] The embodiments described below in conjunction with the drawings further illustrate the specific implementation of the present application. The protection scope of the present application is not limited to the description of the following embodiments.

[0050] As shown in the drawings, Figures 1-18 The present application provides a magnetic latching relay assembly, which comprises a magnetic latching relay 8, wherein the magnetic latching relay 8 comprises a shell, and the shell is internally provided with an electromagnetic system 1, an armature 2, a push rod 3, a magnetic steel part 4, and a main contact assembly 5, the main contact assembly 5 comprises a moving contact sheet 51 and a static contact sheet 53, the electromagnetic system 1 is connected with the armature 2, the armature 2 is connected with the push rod 3, the push rod 3 is connected with the main contact assembly 5, and the magnetic steel part 4 is arranged beside the main contact assembly 5. Figure 1 is a schematic view of the appearance of the magnetic latching relay 8 of the present application, Figure 2 is an exploded view of the magnetic latching relay 8 of the present application.

[0051] As shown in the drawings, Figures 2-14As shown, the magnetic latching relay assembly further comprises a base 7, the magnetic latching relay 8 is plugged with the base 7 to achieve electrical connection, the base 7 is provided with a conductive plug, the moving contact piece 51 and the static contact piece 53 of the magnetic latching relay 8 extend out of the shell to form a first pin, the first pin is plugged with the conductive plug,

[0052] The conductive plug extends out of the base 7 to extend in the direction away from the magnetic latching relay 8 to form a second pin, the base 7 can be plugged with the circuit board to achieve electrical connection, or can be welded on the circuit board to achieve electrical connection, the magnetic latching relay 8 is plugged with the base 7 to achieve electrical connection, easy to install, easy to disassemble and convenient to replace.

[0053] The magnetic latching relay assembly further comprises a driving member 25, the armature 2 is provided with an armature driven part 26 driven with the driving member 25, the driving member 25 is provided with a driving member mounting part 253 driven with the armature driven part 26, a driving member operating part 252 extending out of the shell, and an indication part for the on state of the main contact assembly 5.

[0054] The driving member 25 can drive the armature 2 to swing to make the main contact on or off, the driving member 25 is provided with an indication part for indicating the on state of the main contact assembly 5 of the magnetic latching relay 8.

[0055] The application sets the driving member 25 on the magnetic latching relay shell, the armature 2 is provided with the armature driven part 26 driven with the driving member 25, the driving member 25 can be operated to manually switch the main contact state; the indication part is provided on the driving member 25, the state display mark is provided on the indication part, the state display mark can indicate different main contact states with the change of the position of the indication part; the base 7 is provided, the magnetic latching relay 8 is plugged with the base 7 to achieve electrical connection, the base 7 is provided with a conductive connecting piece, the magnetic latching relay 8 comprises a first pin, the first pin is plugged with the conductive piece to achieve electrical connection, the conductive connecting piece extends out of the base 7 to extend in the direction away from the magnetic latching relay 8 to form a second pin, the base 7 is electrically connected with the circuit board through the second pin, the magnetic latching relay 8 is plugged on the base 7, easy to install, easy to disassemble and convenient to replace.

[0056] In one embodiment, the housing includes a base 100 and an outer shell 101, the outer shell 101 covering the base 100. The electromagnetic system 1, armature 2, push rod 3, magnet part 4, and main contact assembly 5 are mounted on the base 100. The outer shell 101 covers the base 100, enclosing the electromagnetic system 1, armature 2, push rod 3, magnet part 4, and main contact assembly 5. The driving member 25 is disposed on the outer shell 101. The first plug extends out of the base 100 and is plugged into the conductive plug of the base 7.

[0057] Preferred, such as Figure 2 As shown, the driving component 25 is slidably mounted on the housing 101. The driving component 25 includes a driving component sliding plate 251, a driving component operating part 252, and a driving component mounting part 253. The driving component operating part 252 and the driving component mounting part 253 are located on both sides of the driving component sliding plate 251. The driving component operating part 252 is located outside the housing 101 and is used to drive the driving component 25 to slide. The driving component mounting part 253 is located inside the housing 101 and is driven and cooperates with the armature driven part 26. The indicating part is located on the driving component sliding plate 251 or the driving component operating part 252. When the indicating part is located on the driving component sliding plate 251, the indicating part is located on one or both sides of the driving component operating part 252. After the driving component 25 is installed on the housing 101, the indicating part faces the outside of the housing 101. Operating the driving component operating part 252 to make the driving component 25 reciprocate can change the state of the main contacts inside the magnetic latching relay 8. During the sliding process of the driving component, the position of the indicating part will also change, for example, as... Figure 2 As shown, the indicator is located on the sliding plate 251 of the drive member and on both sides of the operating part 252 of the drive member. Two status display indicators are engraved on the indicator on both sides. During the reciprocating sliding of the drive member 25, the two status display indicators alternately disappear inside the housing. For example, they can be "ON" and "OFF". When the sliding plate 251 of the drive member slides to "ON" and enters the housing 101, it is blocked by the housing 101, and only "OFF" is displayed on the outside, indicating that the main contact is in the open state; when the sliding plate 251 of the drive member slides to "OFF" and enters the housing 101, it is blocked by the housing 101, and only "ON" is displayed on the outside, indicating that the main contact is in the closed state. Through this change of the status displayed on the indicator, the operator is prompted, and the closed state of the main contact of the magnetic latching relay 8 can be identified.

[0058] For example, in another embodiment, an arrow can be provided on the driving member 25, and a status display mark, such as "ON" and "OFF", can be provided on the shell 101. As the driving member 25 reciprocally slides, the arrow provided on the driving member 25 indicates "ON" and "OFF", respectively, to indicate the main contact on state and the main contact off state, respectively. Alternatively, in another embodiment, the indication part can be provided on one side of the driving member operating part 252, and a status display mark appears on the operating surface to indicate one state, and the status display mark appears on the inside of the shell 101 to indicate another state.

[0059] Further, when the indication part is provided on both sides of the driving member operating part 252, a status display mark, such as "OFF / ON", or "YES / NO", or "YES / NO", or "START / STOP", or "ON / OFF", etc., can be engraved or pasted on the driving member sliding plate 251. The above examples are not exhaustive.

[0060] Preferably, as shown in Figure 2 , Figure 5 , Figure 6 and Figure 18 , the shell 101 is provided with a first through hole 102, the driving member 25 is mounted on the first through hole 102, and the driving member sliding plate 251 tightly abuts the inner wall of the shell 101. Preferably, the driving member sliding plate 251 completely blocks the first through hole 102 during reciprocating sliding, which can play a role in sealing dust and improving insulation protection. The driving member operating part 252 at least partially protrudes from the first through hole 102. Among them, Figure 18 is a structural schematic view of the inside of the shell 101.

[0061] Further, as shown in Figure 2 and Figure 18 , the first through hole 102 has a clearance area 1021, the driving member operating part 252 extends to a limiting boss 2521 on both sides, and the limiting boss 2521 has a gap with the driving member sliding plate 251. The driving member 25 is mounted on the first through hole 102 from the inside of the shell 101, the driving member operating part 252 extends out of the shell from the first through hole 102, and the two limiting bosses 2521 extend out of the shell from the clearance area 1021. Pushing the driving member operating part 252 of the driving member 25 makes the shell 101 shell clamped into the gap between the limiting boss 2521 and the driving member sliding plate 251, and the limiting boss 2521 moves away from the clearance area 1021 to complete the installation. The limiting boss 2521 plays a limiting role, thereby fixing the driving member 25 on the shell 101 and blocking the first through hole 102. Among them, the effect after installation is shown in Figure 6 .

[0062] Further, as shown inFigure 5 and Figure 6 As shown in FIG. 1, a second limiting boss 2511 is arranged on the driving member sliding plate 251, and the second limiting boss 2511 faces the operation surface. The second limiting boss 2511 can protrude out of the shell from the first through hole 102 or can be flush with the first through hole 102. The second limiting boss 2511 is located on the side of the limiting boss 2521 close to the avoiding area 1021, and the second limiting boss 2511 is arranged at a distance from the limiting boss 2521 in the sliding direction of the driving member 25. After the driving member 25 is installed on the shell 101, when the limiting boss 2521 slides towards the avoiding area 1021, the second limiting boss 2511 abuts against one side of the first through hole 102, so that the limiting boss 2521 cannot slide to the position of the avoiding area 1021, thereby preventing the driving member 25 from falling off from the shell 102 after the limiting boss 2521 slides to the position of the avoiding area 1021. The second limiting boss 2511 can play a limiting role.

[0063] Further, as shown in FIG. 1, the shell 101 is provided with two strip-shaped first limiting tables 103 on both sides of the first through hole 102. The first limiting tables 103 are arranged on the inner wall of the shell 101, and the two first limiting tables 103 are arranged in parallel to clamp the two side edges of the driving member sliding plate 251, thereby limiting the driving member 25. Figure 18 Further, the driving member operation part 252 is a pushing boss or a pushing rod or a pushing groove. When it is a pushing groove, an external tool can be inserted into the pushing groove for operation.

[0064] The driving member mounting part 253 is a mounting groove, and the armature driven part 26 is a force receiving plate or a force receiving rod, and the mounting groove and the force receiving plate or the force receiving rod are drivingly matched. Alternatively, the driving member mounting part 253 is a mounting boss or a mounting rod, and the armature driven part 26 is a force receiving groove, and the mounting boss or the mounting rod and the force receiving groove are drivingly matched.

[0065] As shown in FIG. 1, in the embodiment of the present application, the driving member operation part 252 of the driving member 25 is a pushing boss, the driving member mounting part 253 is a two-sided clamping plate extending towards the armature driven part 26 of the armature 2, and the mounting groove is formed between the two-sided clamping plate. The structure of the armature driven part 26 is a force receiving plate extending towards the driving member 25, and the force receiving plate partially extends into the mounting groove and is clamped and limited by the two-sided clamping plate. Preferably, the armature driven part 26 on the armature 2 is integrally formed with the armature 2.

[0066] Figure 3 Further, as shown in FIG. 1, the shell 101 is provided with two strip-shaped first limiting tables 103 on both sides of the first through hole 102. The first limiting tables 103 are arranged on the inner wall of the shell 101, and the two first limiting tables 103 are arranged in parallel to clamp the two side edges of the driving member sliding plate 251, thereby limiting the driving member 25. Figure 5 Figure 14 Further, as shown in FIG. 1, the shell 101 is provided with two strip-shaped first limiting tables 103 on both sides of the first through hole 102. The first limiting tables 103 are arranged on the inner wall of the shell 101, and the two first limiting tables 103 are arranged in parallel to clamp the two side edges of the driving member sliding plate 251, thereby limiting the driving member 25.

[0067] Further, as shown in FIG. 1, the shell 101 is provided with two strip-shaped first limiting tables 103 on both sides of the first through hole 102. The first limiting tables 103 are arranged on the inner wall of the shell 101, and the two first limiting tables 103 are arranged in parallel to clamp the two side edges of the driving member sliding plate 251, thereby limiting the driving member 25. Figure 14 ​​As shown, the end of the force plate is provided with an arc-shaped protrusion 261, which makes the force plate more closely installed with the mounting groove, and the force plate will not shake in the mounting groove.

[0068] Preferably, as Figures 7-9 As shown, the magnetic latching relay 8 is electrically connected with the base 7 through plug-in. The conductive plug-in part on the base 7 includes at least two first spring clamping grooves and / or at least two second spring clamping grooves, each first spring clamping groove is provided with a first spring clamping spring 71, and each second spring clamping groove is provided with a second spring clamping spring 72, which are used for plug-in cooperation with the magnetic latching relay 8 to realize electrical connection. The first spring clamping spring 71 includes two first spring clamping pieces 711 and a conductive plate 712, the two first spring clamping pieces 711 are connected to the conductive plate 712, and the conductive plate 712 can be welded or plugged on the circuit board. The second spring clamping spring 72 includes two second spring clamping pieces 721 and a conductive rod 722, the two second spring clamping pieces 721 are connected to the conductive rod 722, and preferably, the two second spring clamping pieces 721 and the conductive rod 722 are integrally formed, and the conductive rod 722 can be welded or plugged on the circuit board. Among them, Figure 7 A structural schematic diagram of the base 7 is shown, Figure 8 A structural schematic diagram of the second spring clamping spring 72 is shown, Figure 9 A structural schematic diagram of the first spring clamping spring 71 is shown.

[0069] The conductive plug-in part described in the present application includes two first spring clamping springs 71 arranged side by side, the first plug-in pin is plug-in cooperated with the two first spring clamping springs 71, one first spring clamping spring 71 is plug-in cooperated with the moving contact piece 51, and the other first spring clamping spring 71 is plug-in cooperated with the static contact piece 53.

[0070] Further, as Figure 9 As shown, the two sides of the first spring clamping spring 71 are provided with protruding third buckles 713, and the first spring clamping spring mounting groove of the base 7 is provided with third clamping grooves matched with the third buckles 713.

[0071] Further, as Figure 9 As shown, the conductive plate 712 of the first spring clamping spring 71 extends to the two sides and has a second limiting table 714, the first spring clamping spring 71 is installed on the first spring clamping spring mounting groove of the base 7, and the first spring clamping spring 71 is supported on the base 7 through the second limiting tables 714 on the two sides.

[0072] Further, as Figure 8 As shown, the second spring clamping spring 72 is provided with a third limiting table 723 protruding to the two sides in the middle, the second spring clamping spring 72 is inserted with interference through the third limiting table 723, the second spring clamping spring mounting groove or the two sides is provided with a third limiting groove matched with the third limiting table 723, the third limiting table 723 is inserted into the third limiting groove with interference, so that the second spring clamping spring 72 is fixed on the base 7.

[0073] Further, the first spring sheet 711 and the conductive plate 712 can be fixed by welding or riveting.

[0074] Preferably, the base 7 and the shell of the magnetic latching relay 8 are snap connected, and at least one set of snap structures is arranged between the base 7 and the magnetic latching relay 8.

[0075] Further, as shown in Figure 7 , the base 7 includes at least one first snap 73, the first snap 73 includes a first snap head 731 and a first snap arm 732 which are integrally formed, the first snap arm 732 extends towards the magnetic latching relay 8, the first snap head 731 is arranged at the end of the first snap arm 732, and the included angle between the first snap head 731 and the first snap arm 732 is an acute angle or a right angle. Further, as shown in Figure 6 , the shell 101 of the magnetic latching relay 8 is provided with at least one first slot 733 matched with the first snap head 731, and the base 7 is fixedly installed with the magnetic latching relay 8 through the cooperation of the first snap head 731 and the first slot 733; or, the shell 101 of the magnetic latching relay 8 can not be provided with the first slot 733, and the first snap head 731 is clamped on the side of the magnetic latching relay 8 provided with the first through hole 102.

[0076] Further, as shown in Figure 7 , in the embodiment of the application, two first snaps 73 are arranged on the two sides of the base 7.

[0077] Preferably, as shown in Figure 7 and Figure 18 , each side of the base 7 is provided with a second slot 741, and the shell 101 of the magnetic latching relay 8 is provided with a corresponding second snap 742, the second slot 741 and the second snap 742 are matched correspondingly to fix the base 7 and the magnetic latching relay 8. Among them, Figure 6 shows the structure schematic diagram of the base 7 and the magnetic latching relay 8 after installation.

[0078] Preferably, as shown in Figure 2 , Figure 3 and Figure 4 , the magnetic latching relay 8 further includes an auxiliary contact assembly 6 installed on the base 100, the auxiliary contact assembly 6 is arranged in the shell 101, the auxiliary contact assembly 6 includes an auxiliary moving spring sheet 61 and an auxiliary static spring sheet 62 which are arranged oppositely, the push rod 3 includes an auxiliary contact pushing part 31, the auxiliary contact pushing part 31 cooperates with the auxiliary moving spring sheet 61 to drive the auxiliary moving spring sheet 61 to contact or separate from the auxiliary static spring sheet 62,

[0079] The auxiliary contact assembly 6 further comprises an auxiliary contact protective cover 64, and the auxiliary moving contact 61 and the auxiliary static contact 62 are arranged in the auxiliary contact protective cover 64. Figure 3 The structure schematic diagram of the magnetic latching relay 8, the electromagnetic system 1, the armature 2, the push rod 3, the main contact assembly 5 and the auxiliary contact assembly 6 after installation is shown, Figure 4 The front view of the magnetic latching relay 8 is shown, Figure 3 The front view of the magnetic latching relay 8 is shown, Figure 5 The sectional view of the magnetic latching relay 8 is shown.

[0080] The auxiliary contact assembly 6 is arranged on the base 100 of the magnetic latching relay 8, and the opening and closing states of the main contact in the relay are determined by the opening and closing states of the auxiliary contact assembly 6. The auxiliary contact assembly 6 comprises the auxiliary moving contact 61 and the auxiliary static contact 62 arranged oppositely, and the auxiliary contact protective cover 64. The auxiliary moving contact 61 and the auxiliary static contact 62 can be arranged in the auxiliary contact protective cover 64. The auxiliary moving contact 61 and the auxiliary static contact 62 can be protected by arranging the auxiliary contact protective cover 64, the pollution of the auxiliary moving contact 61 and the auxiliary static contact 62 during use is reduced, the reliability of the auxiliary contact is improved, and the smoke caused by the arc ablation of the main contact assembly 5 can affect the on performance of the auxiliary contact. Therefore, the auxiliary contact protective cover 64 can also avoid the pollution of the auxiliary contact.

[0081] Preferably, as shown in Figure 3 , Figure 4 , Figure 11 and Figure 12 , the auxiliary moving contact 61 and the auxiliary static contact 62 are arranged in parallel along the height direction of the magnetic latching relay 8, the auxiliary moving contact 61 is higher than the auxiliary static contact 62, the high area forms an auxiliary contact driven part 63, the auxiliary contact driving part 31 comprises a first recess 32, the first recess 32 is higher than the auxiliary static contact 62, the auxiliary contact driven part 63 is arranged in the first recess 32, and the push rod 3 drives the auxiliary moving contact 61 to move through the first recess 32, so that the auxiliary moving contact 61 and the auxiliary static contact 62 are in contact or separated.

[0082] In this application, the auxiliary moving spring 61 and the auxiliary stationary spring 62 are arranged parallel to each other, with the auxiliary moving spring 61 being higher than the auxiliary stationary spring 62. The area above the moving spring forms the auxiliary contact driven part 63. This application also includes a push rod 3 that cooperates with the auxiliary contact assembly 6. The auxiliary contact pushing part 31 of the push rod 3 includes a first groove 32. The first groove 32 is higher than the auxiliary stationary spring 62, so that the auxiliary contact driven part 63 is placed in the first groove 32. The push rod 3 moves to drive the first groove 32, causing the first groove 32 to push the auxiliary moving spring 61 and the auxiliary stationary spring 62 to contact or separate. The outstanding effect of this design is that it eliminates the need for a separate auxiliary lead-out piece that extends into the magnetic latching relay 8 and connects to the auxiliary moving spring 61. The structure is compact, saving space inside the magnetic latching relay 8 and making installation more convenient.

[0083] Preferred, such as Figure 11 As shown, the auxiliary moving spring 61 and the auxiliary stationary spring 62 respectively include a first lead-out portion 612 and a second lead-out portion 622 extending downward.

[0084] like Figure 7 As shown, two second clamping springs 72 are arranged side by side on the base 7. One second clamping spring 72 is inserted and installed into the first lead-out part 612, and the other second clamping spring 72 is inserted and installed into the second lead-out part 622.

[0085] The first lead-out portion 612 and the second lead-out portion 622 are preferably rod-shaped structures for external connection leads. The first lead-out portion 612 and the second lead-out portion 622 can be connected to the central control panel. When the magnetic latching relay 8 receives an action signal, the coil is energized and in the action state. The auxiliary moving spring 61 contacts the auxiliary stationary spring 62, and the auxiliary contact is in the closed state. At this time, the signal will be transmitted to the central control panel, which can display "1" or "closed" to indicate to the operator that the magnetic latching relay 8 is in the working and engaged state. When the central control panel displays "0" or "open", it indicates that the auxiliary contact is in the open state, the magnetic latching relay 8 is not working and is in the open state, which may be a fault problem, and the electrical equipment needs to be checked. In other embodiments, the first lead-out portion 612 and the second lead-out portion 622 may also be plate-shaped structures. The first lead-out portion 612 and the second lead-out portion 622 may be extensions of the auxiliary moving spring 61 and the auxiliary stationary spring 62, respectively. This can save time in fabricating the first lead-out portion 612 and the second lead-out portion 622 on the auxiliary moving spring 61 and the auxiliary stationary spring 62, thereby improving production efficiency.

[0086] Furthermore, such as Figure 11As shown in the drawings, the upper end of the auxiliary moving spring 61 is provided with an auxiliary moving contact 611 opposite to one side of the auxiliary static spring 62, the upper end of the auxiliary static spring 62 is provided with an auxiliary static contact 621 opposite to one side of the auxiliary moving spring 61, and the auxiliary moving contact 611 and the auxiliary static contact 621 are oppositely arranged. The auxiliary moving contact 611 and the auxiliary static contact 621 are collectively referred to as auxiliary contacts, and the auxiliary contacts have two states of open point and closed point. When the auxiliary moving contact 611 and the auxiliary static contact 621 are disconnected, the auxiliary contacts are in the open point state; when the auxiliary static contact 621 and the auxiliary moving contact 611 are in contact, the auxiliary contacts are in the closed point state. The auxiliary moving spring 61 and the auxiliary static spring 62 can be plate-shaped structures or rod-shaped structures, and the material thereof is preferably copper, and can also be, but is not limited to, steel and copper-based alloy (such as tin phosphor bronze and beryllium bronze). In the present application, the auxiliary moving contact 611 and the auxiliary static contact 621 are respectively arranged at the upper end of the auxiliary moving spring 61 and the auxiliary static spring 62, and the first lead-out part 612 and the second lead-out part 622 are respectively arranged at the lower end, so that the structure is more compact, beautiful and simple, and the installation is more convenient.

[0087] Further, as shown in the drawings, Figure 2 , Figure 11 and Figure 13 , the auxiliary contact protective cover 64 comprises a first mounting structure 641, and the base 100 is provided with a second mounting structure 642 matched with the first mounting structure 641. In other preferred embodiments, the second mounting structure 642 can be arranged on the auxiliary moving spring 61 and the auxiliary static spring 62; or a third mounting structure is further arranged on the auxiliary moving spring 61 and the auxiliary static spring 62, and the auxiliary contact protective cover 64 further comprises a fourth mounting structure matched with the third mounting structure. The cooperation of the first mounting structure 641 and the second mounting structure 642 and the cooperation of the third mounting structure and the fourth mounting structure can make the installation of the auxiliary contact protective cover 64 more firm and stable. The first mounting structure 641 can be a sliding rail on the inner side edge of the auxiliary contact protective cover 64, and the second mounting structure 642 can be a sliding groove arranged on the base 100. The sliding rail extends into the sliding groove to make the auxiliary contact protective cover 64 and the base 100 slide with each other.

[0088] Further, as shown in the drawings, Figure 16As shown, the base 100 is provided with a baffle 65 in the height direction of the magnetic latching relay 8, the auxiliary contact protective cover 64 is a one-side opening box, a space for accommodating the auxiliary contact assembly 6 is formed in the auxiliary contact protective cover 64, the auxiliary contact protective cover 64 is connected with the base 100, and the baffle 65 blocks the opening of the auxiliary contact protective cover 64. The baffle 65 and the auxiliary contact protective cover 64 cooperatively wrap the auxiliary moving reed 61 and the auxiliary stationary reed 62, and the wrapping structure design provides better protection for the auxiliary moving reed 61 and the auxiliary stationary reed 62. Preferably, the back of the baffle 65 is provided with a first sliding groove 123 for mounting the yoke 12, that is, the baffle 65 simultaneously serves as the mounting of the yoke 12 and the protection of the auxiliary contact assembly 6.

[0089] Further, as shown in Figure 11 and Figure 13 , a second groove 643 is formed in the side of the auxiliary contact protective cover 64 for cooperating with the pushing rod 3, and the auxiliary contact pushing part 31 of the pushing rod 3 partially extends into the second groove 643.

[0090] Specifically, the second groove 643 is formed in one side of the auxiliary contact protective cover 64, and one side of the auxiliary contact pushing part 31 of the rod-shaped structure of the pushing rod 3 can be placed in the second groove 643. With the movement of the pushing rod 3, the auxiliary contact pushing part 31 can move in the second groove 643. The auxiliary contact pushing part 31 is in a bent structure of "L" shape. The auxiliary contact pushing part 31 includes a first connecting arm and a second connecting arm. The first connecting arm is connected with the side of the main contact pushing part 33 and is vertically arranged to extend upward and connect with the second connecting arm. The second connecting arm is horizontally arranged, and the side of the second connecting arm away from the main contact pushing part 33 is provided with a driving boss extending into the auxiliary contact protective cover 64 and provided with the first groove 32.

[0091] Preferably, as shown in Figure 12 , the pushing rod 3 further includes a main contact pushing part 33, and the main contact pushing part 33 is in a plate-like structure. The main contact pushing part 33 is lower than the auxiliary contact pushing part 31 in the height direction of the magnetic latching relay 8.

[0092] One end of the auxiliary contact pushing part 31 is bently connected with a corner of the main contact pushing part 33, and the overall structure is in a "Z" shape, so that one side of the "L" shape structure of the auxiliary contact pushing part 31 is parallel to the main contact pushing part 33.

[0093] Further, as shown in Figure 3 , Figure 12 , Figure 14 and Figure 15As shown, the main contact pushing part 33 includes a first mounting hole 331, a second mounting hole 332 and a third mounting hole 333, the armature 2 lower part protruding setting a support arm 21, the main contact assembly 5 further includes a moving spring blade 52, the support arm 21 is placed in the first mounting hole 331, the moving contact blade 51 bottom end is placed in the second mounting hole 332, and the moving spring blade 52 bottom end is placed in the third mounting hole 333. In other embodiments, the first mounting hole 331, the second mounting hole 332 and the third mounting hole 333 can also be groove structures.

[0094] By setting the main contact pushing part 33 on the pushing rod 3, and setting the first mounting hole 331, the second mounting hole 332 and the third mounting hole 333 on the main contact pushing part 33, the armature 2, the moving contact blade 51, the moving spring blade 52 and the pushing rod 3 are connected as a whole, the armature 2 movement drives the pushing rod 3 movement, and further drives the moving contact blade 51 and the moving spring blade 52 movement, so that it is in contact or disconnected with the static contact blade 53, at the same time, the movement of the pushing rod 3 also drives the auxiliary contact pushing part 31 movement, and further drives the auxiliary moving spring blade 61 movement, so that the auxiliary moving spring blade 61 is in contact or disconnected with the auxiliary static spring blade 62, to realize the opening and closing state conversion of the auxiliary contact.

[0095] Further, the base 7 can also be provided with two second clamping springs 72 for standby wiring.

[0096] Further, as shown in the drawings, Figure 15 As shown, the moving contact blade 51 includes a moving contact blade mounting part, and the moving spring blade 52 includes a moving spring blade mounting part 521 matched with the moving contact blade mounting part; the moving spring blade 52 includes at least one moving contact; the static contact blade 53 of the main contact assembly 5 is mounted on the base 100, the static contact blade 53 includes at least one static contact, and the static contact is correspondingly provided with the moving contact. Wherein, the moving contact blade mounting part can be a hole structure, the moving spring blade mounting part 521 can be a rivet, the hole structure and the rivet are matched to realize riveting, or it can also be the cooperation of a screw and a nut, which can make the moving spring blade 52 mounted on the moving contact blade 51.

[0097] Further, as shown in the drawings, Figure 3 , Figure 15 and Figure 16As shown, the dynamic contact piece 51 and the dynamic spring piece 52 are provided with protruding parts at both ends along the width direction of the magnetic holding relay 8, which are clamped to the edges of the second mounting hole 332 and the third mounting hole 333 of the push rod 3 and are limited by the edges; the inner side of the base 100 along the length direction of both sides of the magnetic holding relay 8 is provided with a strip-shaped boss 334 along the length direction, and the second mounting hole 332 is arranged on the strip-shaped boss 334, and the protruding parts of the dynamic contact piece 51 and the dynamic spring piece 52 are clamped to the strip-shaped boss 334 on the base 100 along the height direction of the magnetic holding relay 8, so as to limit and fix the push rod 3 in the height direction of the magnetic holding relay 8.

[0098] Preferably, as shown in the drawings, Figure 17 As shown, the electromagnetic system 1 comprises a coil, a coil skeleton 11 and two yokes 12, the coil is wound on the coil skeleton 11, and the two yokes 12 are respectively installed at both ends of the coil skeleton 11.

[0099] Further, as shown in the drawings, Figure 17 As shown, the coil skeleton 11 comprises a coil skeleton shaft 13, the coil skeleton shaft 13 is arranged inside the coil skeleton 11, and the coil skeleton shaft 13 is provided with a coil skeleton shaft mounting part 131 at both ends, and the yoke 12 is provided with a yoke mounting part 121 matched with the coil skeleton shaft mounting part 131.

[0100] Specifically, the yoke 12 is a plate structure, the coil skeleton shaft 13 is a square structure, the coil skeleton shaft mounting part 131 is a columnar structure, the yoke mounting part 121 is a hole structure, or the yoke mounting part 121 is a columnar structure protruding from the surface of the yoke 12, and the coil skeleton shaft mounting part 131 is a hole structure, and the installation of the coil skeleton shaft mounting part 131 and the yoke mounting part 121 presents a mortise and tenon structure, in order to achieve better installation effect, the columnar structure of the coil skeleton shaft mounting part 131 can be composed of multiple cylinders with different diameters, and the multiple cylinders are arranged in a stepped manner, that is, the diameter gradually decreases from the center close to the coil skeleton shaft mounting part 131 to the center away from the coil skeleton shaft mounting part 131, compared with a coil formed by wires of the same length, the square structure of the coil skeleton shaft 13 can increase the space from the yoke 12 to the outer diameter of the coil, so that the armature 2 installed on the yoke 12 has sufficient space for movement, in this case, the size from the axis of the coil skeleton shaft 13 to the yoke 2 can be further shortened, so that the overall length of the electromagnetic system 1 is reduced.

[0101] Further, as shown in the drawings, Figure 16 and Figure 17As shown, the yoke 12 includes a control portion 122 bent to one side of the coil former 11, the control portion 122 is provided with a protruding structure on both sides, the base 100 is provided with a first sliding groove 123 on both sides along the height direction of the magnetic holding relay 8, the yoke 12 is limited by the cooperation between the protruding structure and the first sliding groove 123. Wherein, the base 100 can also not be provided with a separate baffle 65, the auxiliary contact protective cover 64 can be matched with the back of the first sliding groove 123 to wrap the auxiliary moving spring 61 and the auxiliary static spring 62.

[0102] Further, as shown in Figure 14 and Figure 17 , the upper and lower parts of the armature 2 are provided with a third groove 24 matched with the control portion 122 of the yoke 12, the control portion 122 is located in the third groove 24, the third groove 24 can be formed by setting two strip-shaped bosses on the surface of the upper and lower parts of the armature 2, the two strip-shaped bosses are arranged in a spaced manner to form the third groove 24, and the cooperation between the control portion 122 and the third groove 24 enables the electromagnetic system 1 to drive the armature 2 to rotate.

[0103] Further, as shown in Figure 14 and Figure 16 , the armature 2 is provided with a fifth mounting structure 22, and the middle part of the first sliding groove 123 of the base 100 is provided with a sixth mounting structure 23 matched with the fifth mounting structure 22.

[0104] Specifically, the fifth mounting structure 22 is a mounting shaft in the middle part of both sides of the armature 2, and the sixth mounting structure 23 is a mounting hole, which are matched and installed to enable the armature 2 to be rotatably installed on the base 100, or the fifth mounting structure 22 can be a mounting hole formed in the armature 2, and the sixth mounting structure 23 is a protruding portion provided in the middle part of the first sliding groove 123, all of which belong to the protection scope of the present application.

[0105] Preferably, the shell 101 is provided with a seventh mounting structure, and the base 100 is provided with an eighth mounting structure matched with the seventh mounting structure, and the cooperation between the seventh mounting structure and the eighth mounting structure enables the shell 101 to be fixedly installed on the base 100. Wherein, the seventh mounting structure and the eighth mounting structure are not shown in the figure.

[0106] Further, the seventh mounting structure can also be a protruding part of the buckle structure, and the eighth mounting structure is a recessed part of the buckle structure, the protruding part is matched with the recessed part, so that the shell 101 and the base 100 are buckled and mounted, the mounting is simple, the dismounting is convenient, separate mounting components are not needed, the process steps are reduced, and wherein the seventh mounting structure and the eighth mounting structure can be interchanged, that is, the seventh mounting structure is a recessed part, and the eighth mounting structure is a protruding part; or in other preferred embodiments, the shell 101 includes both a protruding part and a recessed part, and the base 100 is provided with corresponding recessed parts and protruding parts, so that the buckled mounting is realized, and the mounting of such a structure is more firm.

[0107] In addition, the inner surface of the shell 101 further includes a plurality of limiting structures, and the plurality of limiting structures are matched with the internal structures on the base 100, so that the shell 101 fixes and limits a plurality of elements in the base 100, prevents the elements from shaking or falling off in use, and affects the electrical life of the magnetic latching relay 8.

[0108] Preferably, as shown in the drawings, Figure 2 The magnetic latching relay 8 further includes two groups of magnetic steel parts 4 with opposite magnetism beside the main contact assembly 5, the two groups of magnetic steel parts 4 are oppositely arranged along the width direction of the magnetic latching relay 8, the magnetic steel part 4 includes an arc-blowing magnetic steel 41 and a magnetic shunt 42 which are stacked, one side of the magnetic shunt 42 is half-wrapped, the base 100 is provided with two groups of first blocking walls 43 with a half-enclosing structure, the magnetic steel part 4 is inserted into the first blocking wall 43, the magnetic steel part 4 is in interference fit with the first blocking wall 43, after the shell 101 is mounted on the base 100, the magnetic shunt 42 is matched with the first blocking wall 43 to wrap the corresponding arc-blowing magnetic steel 41.

[0109] Further, the base 100 can be provided with two groups of first blocking walls 43, and the shell 101 can be provided with two groups of second blocking walls, one first blocking wall 43 and one second blocking wall are matched to wrap one group of magnetic steel parts 4 along the height direction of the magnetic latching relay 8, the two ends of the magnetic steel part 4 are respectively inserted into the first blocking wall 43 and the second blocking wall, the two ends of the magnetic steel part 4 are respectively in interference fit with the first blocking wall 43 and the second blocking wall, after the shell 101 is mounted on the base 100, the magnetic shunt 42 is matched with the first blocking wall 43 and the second blocking wall to wrap the corresponding arc-blowing magnetic steel 41.

[0110] Further, the first blocking wall 43 and the second blocking wall are integrally formed with the shell 101 and the base 100 respectively.

[0111] In other possible implementation manners, the magnetic steel part 4 only includes the arc-blowing magnetic steel 41, the shell 101 is provided with a first blocking wall 43 in a semi-enclosing structure, the first blocking wall 43 and the side wall of the shell 101 enclose an upper insertion slot with an opening downward, the base 100 is provided with a second blocking wall in a semi-enclosing structure, the second blocking wall and the side wall of the base 100 enclose a lower insertion slot, the upper end of the arc-blowing magnetic steel 41 is inserted into the upper insertion slot, the lower end of the arc-blowing magnetic steel 41 is inserted into the lower insertion slot, the upper insertion slot and the lower insertion slot are correspondingly arranged along the height direction of the magnetic latching relay 8, and after the shell 101 is mounted on the base 100, the upper insertion slot and the lower insertion slot completely wrap the arc-blowing magnetic steel 41.

[0112] Further, the upper insertion slot and the lower insertion slot can be separately arranged and not enclosed by the first side wall and the side wall of the shell 101, the second side wall and the side wall of the base 100, and the same technical effects can also be achieved by such arrangement.

[0113] Further, in one possible implementation manner, the base 100 is provided with two groups of lower insertion slots along the width direction of the magnetic latching relay 8, and the magnetic steel part 4 is inserted into the lower insertion slots in interference, or in another possible implementation manner, the shell 101 is provided with two groups of upper insertion slots along the width direction of the magnetic latching relay 8, and the magnetic steel part 4 is inserted into the upper insertion slots in interference, which all belong to the protection scope of the present application.

[0114] Further, in other embodiments, two groups of first blocking walls 43 or second blocking walls can also be arranged on the base 100 or the shell 101, the shell 101 is integrally formed with the first blocking walls 43, or the base 100 is integrally formed with the second blocking walls, or the shell 101 is provided with the first blocking walls 43 on one side and the base 100 is provided with the second blocking walls on one side, and the first blocking walls 43 and the second blocking walls are oppositely arranged along the width direction of the magnetic latching relay 8.

[0115] When the magnetic latching relay 8 is attracted or disconnected, the moving contact piece 52 in the main contact assembly 5 is in contact with or disconnected from the static contact piece 53, and an electric arc is generated. The electric arc burns between the contacts of the switch electric appliance. In order to reduce the burning loss of the electric arc to the contacts, a magnetic arc-blowing device is generally used. The magnetic field can affect the electric arc and guide the electric arc into a special diverging-shaped arc guide angle, so as to lengthen the electric arc, and the movement and lengthening of the electric arc help to cool and de-ionize the arc column. In the magnetic latching relay 8 of the present application, the magnetic steel part 4 with opposite polarity is arranged beside the main contact assembly 5, and the magnetic field generated by the magnetic steel part 4 acts on the electric arc to affect the movement of the electric arc.

[0116] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a particular orientation, so it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0117] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as falling within the scope of protection of the present application.

Claims

1. A magnetic latching relay assembly, comprising a magnetic latching relay (8), the magnetic latching relay (8) comprising a housing, an electromagnetic system (1), an armature (2), a push rod (3), a magnetic steel part (4) and a main contact assembly (5) are installed in the housing, the electromagnetic system (1) is connected with the armature (2), the armature (2) is connected with the push rod (3), the push rod (3) is connected with the main contact assembly (5), the main contact assembly (5) comprises a moving contact piece (51) and a stationary contact piece (53), the magnetic steel part (4) is placed beside the main contact assembly (5), characterized in that, a base (7) and a driving member (25) are further included, the magnetic latching relay (8) is plugged with the base (7) to realize electrical connection, the base (7) is provided with a conductive plug, the moving contact piece (51) and the stationary contact piece (53) of the magnetic latching relay (8) extend out of the housing to form a first pin, the first pin is plugged with the conductive plug, the conductive plug extends out of the base (7) to extend in a direction opposite to the magnetic latching relay (8) to form a second pin, the armature (2) is provided with an armature driven part (26) which is drivenly matched with the driving member (25), the driving member (25) is provided with a driving member mounting part (253) which is drivenly matched with the armature driven part (26), a driving member operating part (252) which extends out of the housing, and an indicating part for indicating the on state of the main contact assembly (5). The driving member (25) is slidingly arranged on the housing, the driving member (25) comprises a driving member sliding plate (251), the driving member operating part (252) and the driving member mounting part (253), the driving member operating part (252) and the driving member mounting part (253) are arranged on two sides of the driving member sliding plate (251), the driving member mounting part (253) is drivenly matched with the armature driven part (26), and the indicating part is arranged on the driving member operating part (252) and / or the driving member sliding plate (251).

2. The magnetic latching relay assembly of claim 1, wherein, The housing is provided with a first through hole (102), the driving member (25) is mounted on the first through hole (102), and the driving member sliding plate (251) is attached to the inner wall of the housing; the indicating part is arranged on the driving member sliding plate (251) and located on at least one side of the driving member operating part (252), and the indicating part is displayed in the first through hole (102) or hidden in the housing while the driving member (25) reciprocally slides.

3. The magnetic latching relay assembly of claim 2, wherein, The indicating part is located on both sides of the driving member operating part (252), two state display marks are respectively arranged on the indicating parts on the two sides, and the two state display marks are alternately hidden in the housing during the reciprocating sliding of the driving member (25).

4. The magnetic latching relay assembly of claim 3, wherein, ​ 5. The magnetic latching relay assembly of claim 3, wherein, The first through hole (102) has an avoiding area (1021), the driving member operating part (252) extends to two sides and has a limiting boss (2521), and a gap is formed between the limiting boss (2521) and the driving member sliding plate (251), the driving member operating part (252) extends out of the shell from the first through hole (102), the two limiting bosses (2521) extend out of the shell from the avoiding area (1021), and the shell is clamped into the gap between the limiting boss (2521) and the driving member sliding plate (251).

6. The magnetic latching relay assembly of claim 5, wherein, Two first limiting tables (103) are arranged on the two sides of the first through hole (102) in parallel, the two first limiting tables (103) are arranged on the inner wall of the shell, and the driving member sliding plate (251) is arranged between the two first limiting tables (103) and is limited by the two first limiting tables (103).

7. The magnetic latching relay assembly of claim 2, wherein, The driving member operating part (252) is a pushing boss or a pushing rod or a pushing groove, The driving member mounting part (253) is a mounting groove, the armature driven part (26) is a force receiving plate or a force receiving rod, and the mounting groove is driven in cooperation with the force receiving plate or the force receiving rod; or the driving member mounting part (253) is a mounting boss or a mounting rod, the armature driven part (26) is a force receiving groove, and the mounting boss or the mounting rod is driven in cooperation with the force receiving groove.

8. The magnetic latching relay assembly of claim 7, wherein, The armature driven part (26) is a force receiving plate, two sides of the driving member (25) facing the armature driven part (26) are provided with two side clamping plates, and the mounting groove is formed between the two side clamping plates; and an arc-shaped protrusion (261) is arranged at the end of the force receiving plate.

9. The magnetic latching relay assembly of claim 1, wherein, The magnetic latching relay (8) further comprises an auxiliary contact assembly (6) mounted in the shell, the auxiliary contact assembly (6) comprises an auxiliary moving contact (61) and an auxiliary static contact (62) arranged opposite to each other, the pushing rod (3) comprises an auxiliary contact pushing part (31), the auxiliary contact pushing part (31) cooperates with the auxiliary moving contact (61) to drive the auxiliary moving contact (61) to contact or separate from the auxiliary static contact (62), the auxiliary moving contact (61) and the auxiliary static contact (62) respectively comprise a first extension part (612) and a second extension part (622) extending downward, the conductive connector comprises at least two first clamping springs (71) and at least two second clamping springs (72), the first pin is connected to the at least two first clamping springs (71) in a plug-in manner, and the first extension part (612) and the second extension part (622) are connected to the two second clamping springs (72) in a plug-in manner respectively.

10. The magnetic latching relay assembly according to claim 9, wherein The first clamping spring (71) is provided with a protruding third buckle (713) or a third clamping groove on the two sides, the base (7) is provided with a third clamping groove or a third buckle (713), the third buckle (713) and the third clamping groove are matched to fix the third clamping groove, and the conductive plate (712) extends to two sides and has a second limiting table (714); The second clamping spring (72) is provided with a third limiting table (723) protruding to two sides in the middle.

11. The magnetic latching relay assembly of claim 1, wherein, The base (7) comprises at least one first buckle (73), the first buckle (73) comprises a first buckle head (731) and a first buckle arm (732) which are integrally formed, the first buckle arm (732) extends to the magnetic holding relay (8), the first buckle head (731) is arranged at the end of the first buckle arm (732), and the included angle between the first buckle head (731) and the first buckle arm (732) is an acute angle or a right angle; At least one first buckle groove (733) is arranged on the shell, and the first buckle head (731) is fixed by cooperating with the first buckle groove (733).

12. The magnetic latching relay assembly of claim 9, wherein, The auxiliary contact assembly (6) further comprises an auxiliary contact protective cover (64), and the auxiliary moving spring piece (61) and the auxiliary static spring piece (62) are arranged in the auxiliary contact protective cover (64).

13. The magnetic latching relay assembly of claim 12, wherein, The auxiliary moving spring piece (61) and the auxiliary static spring piece (62) are arranged in parallel along the height direction of the magnetic holding relay (8), the upper end of the auxiliary moving spring piece (61) is provided with an auxiliary moving contact (611) relative to one side of the auxiliary static spring piece (62), the upper end of the auxiliary static spring piece (62) is provided with an auxiliary static contact (621) relative to one side of the auxiliary moving spring piece (61), the auxiliary moving contact (611) and the auxiliary static contact (621) are arranged oppositely, the auxiliary moving spring piece (61) is higher than the auxiliary static spring piece (62), and the high area forms an auxiliary contact driven part (63), the auxiliary contact pushing part (31) of the pushing rod (3) comprises a first groove (32), the first groove (32) is higher than the auxiliary static spring piece (62), the auxiliary contact driven part (63) is arranged in the first groove (32), and the pushing rod (3) drives the auxiliary moving spring piece (61) to move through the first groove (32).

14. The magnetic latching relay assembly of claim 12, wherein, The pushing rod (3) further comprises a main contact pushing part (33), the main contact pushing part (33) is a plate-shaped structure, and the main contact pushing part (33) is lower than the auxiliary contact pushing part (31); the main contact pushing part (33) comprises a first mounting hole (331), a second mounting hole (332) and a third mounting hole (333), the armature (2) is provided with a support arm (21) protruding at the lower portion, the main contact assembly (5) further comprises a moving spring piece (52), the support arm (21) is arranged in the first mounting hole (331), the bottom end of the moving contact piece (51) is arranged in the second mounting hole (332), and the bottom end of the moving spring piece (52) is arranged in the third mounting hole (333).

15. The magnetic latching relay assembly of claim 1, wherein, The shell comprises a base (100) and a shell (101), the electromagnetic system (1), the armature (2), the push rod (3), the magnetic steel part (4) and the main contact assembly (5) are installed on the base (100), the shell (101) covers the base (100), and the electromagnetic system (1), the armature (2), the push rod (3), the magnetic steel part (4) and the main contact assembly (5) are wrapped, and the driving member (25) is arranged on the shell (101); the first pin is inserted into the conductive plug of the base (100) and the base (7).

16. The magnetic latching relay assembly of claim 15, wherein, The magnetic latching relay further comprises two groups of magnetic steel parts (4) with opposite magnetism beside the main contact assembly (5), the two groups of magnetic steel parts (4) are oppositely arranged along the width direction of the magnetic latching relay, the magnetic steel part (4) comprises an arc-blowing magnetic steel (41) and a magnetic shunt (42) arranged in layers, one side of the magnetic shunt (42) wraps the arc-blowing magnetic steel (41), the base (100) is provided with two groups of first blocking walls (43) with a half-enclosing structure, the magnetic steel part (4) is inserted into the first blocking wall (43), the magnetic steel part (4) is interference-fitted with the first blocking wall (43), after the shell (101) is installed on the base (100), the magnetic shunt (42) cooperates with the first blocking wall (43) to wrap the corresponding arc-blowing magnetic steel (41).

17. The magnetic latching relay assembly of claim 5, wherein, The driving member sliding plate (251) is further provided with a second limiting boss (2511), the second limiting boss (2511) and the limiting boss (2521) are arranged in the sliding direction of the driving member (25), the driving member (25) slides to the avoiding area (1021), the second limiting boss (2511) abuts against one side of the avoiding area (1021), so that the limiting boss (2521) cannot reach the avoiding area (1021).

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