Magnetic latching relay

Abstract

The embodiment of the invention provides a magnetic latching relay. The magnetic latching relay comprises a coil assembly and two yokes, the coil assembly comprises a plurality of enameled wires and a plurality of iron cores; the plurality of enameled wires are positioned outside the plurality of iron cores; the two yokes are positioned at two ends of the plurality of iron cores and are respectively connected with the plurality of iron cores; first isolation parts are arranged on the two yokes and located between the adjacent iron cores in the multiple iron cores, so that suction force is generated through the multiple enameled wires, and magnetic line interference between the adjacent enameled wires is reduced through the first isolation parts. Meanwhile, the number of turns on each enamelled wire is reduced under the condition that the total number of turns of the enamelled wires is the same, so that the total perimeter of the enamelled wires is shortened, and the cost is reduced. In addition, under the condition that the total perimeters of the enameled wires are the same, the total number of turns of the enameled wires is increased, and suction is improved.

Description

Technical Field

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

[0002] A relay is a control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. In fact, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. A magnetic latching relay is a type of relay that also plays the role of automatically connecting and disconnecting the circuit. The difference is that the normally closed or normally open state of the magnetic latching relay is completely dependent on the action of permanent magnets. When the coil in the magnetic latching relay passes the rated voltage, a certain magnetic field will be generated. One end of the armature assembly will generate a repulsive force with the yoke, and the other end of the yoke assembly will generate an attractive force with the yoke, thereby realizing the rotation of the armature assembly and further realizing the switching of the state of the magnetic latching relay. In order to maintain a certain suction force, the coil assembly of the magnetic latching relay in the related art will maintain a certain number of turns of the enameled wire in the coil assembly, and the length of the outer enameled wire is more than the length of the inner enameled wire, which makes the material cost of the enameled wire in the coil assembly too high. Summary of the invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a magnetic latching relay that overcomes the above problems or at least partially solves the above problems.

[0004] In order to solve the above problems, an embodiment of the present invention discloses a magnetic latching relay, comprising:

[0005] a coil assembly and two yokes;

[0006] The coil assembly includes a plurality of enameled wires and a plurality of iron cores;

[0007] The plurality of enameled wires are located outside the plurality of iron cores;

[0008] The two yokes are located at two ends of the plurality of iron cores and are respectively connected to the plurality of iron cores; a first isolation portion is provided on the two yokes and between adjacent iron cores among the plurality of iron cores.

[0009] Optionally, the plurality of cores is two in number, including a first core and a second core.

[0010] Optionally, the two yokes include a first arm; the first arm is connected to the first iron core and the second iron core respectively;

[0011] The first iron core and the second iron core are arranged side by side along the extending direction of the first arms of the two yokes.

[0012] Optionally, the two yokes further include a second arm; the second arm is connected to the first arm;

[0013] The first isolating portion is provided on the two yokes and located between the first iron core and the second iron core; the first isolating portion has an opening, and the opening faces the second arms of the two yokes.

[0014] Optionally, the coil assembly further comprises: a coil frame having the same number as the plurality of iron cores;

[0015] The iron cores are respectively inserted into the through holes of the corresponding coil frames; and the plurality of enameled wires are wound around the outside of the coil frames.

[0016] Optionally, the number of the plurality of enameled wires is two, including a first enameled wire and a second enameled wire;

[0017] The winding direction of the first enameled wire is the same as the winding direction of the second enameled wire, and the first enameled wire and the second enameled wire are connected in series, so that the magnetic poles generated by the first enameled wire and the second enameled wire have the same direction.

[0018] Optionally, the coil assembly also includes a first pin, a second pin, a third pin and a fourth pin; the first pin, the second pin, the third pin and the fourth pin are respectively arranged at the same end of the coil frame; the first pin is connected to one end of the first enameled wire, the second pin is connected to the other end of the first enameled wire, and is also connected to the third pin, the third pin is connected to one end of the second enameled wire, and the fourth pin is connected to the other end of the second enameled wire.

[0019] Optionally, the magnetic latching relay further comprises: a movable spring lead-out piece, a movable spring piece, a static spring lead-out piece, a push card and an armature assembly; the two yokes further comprise a second arm; the second arm is connected to the first arm;

[0020] The first end of the movable spring piece is connected to the first end of the push card, and the second end of the movable spring piece is connected to one end of the movable spring lead-out piece; a movable contact is provided on one side of the movable spring piece facing the static spring lead-out piece; a static contact is provided on one side of the static spring lead-out piece facing the movable spring piece; the position of the static contact corresponds to the position of the movable contact;

[0021] The second end of the push card is connected to the armature assembly;

[0022] The armature assembly is located between the second arms of the two yokes.

[0023] Optionally, the armature assembly comprises: a fixed bracket, a permanent magnet, two armatures and an enclosure;

[0024] The permanent magnetic steel is stacked between the two armatures to form an I-shape and is fixed by the containing body;

[0025] A rotation hole is provided in the middle of the fixing bracket; the inclusion body is rotatably connected to the fixing bracket through the rotation hole;

[0026] The containing body is provided with a push arm in the direction toward the push card; the push arm is connected to the second end of the push card;

[0027] The two armatures rotate according to the magnetic pole direction of the magnetic field generated by the first enameled wire and the second enameled wire, and are attracted to the second arm of one of the two yokes; when the two armatures rotate, the enclosing body rotates synchronously.

[0028] Optionally, the plurality of cores is two in number, including a first core and a second core.

[0029] Optionally, the two yokes include a first arm; the first arm is connected to the first iron core and the second iron core respectively;

[0030] The first iron core and the second iron core are arranged side by side along an extending direction of the first arms perpendicular to the two yokes.

[0031] Optionally, a first isolation portion is provided on the two yokes between the first core and the second core; the first isolation portion is arranged along the extension direction of the yoke to completely isolate or divide the two parts of the yoke corresponding to the first core and the second core and keep them partially connected.

[0032] Optionally, the magnetic latching relay further comprises: an armature assembly; the armature assembly comprises: two armatures;

[0033] The two armatures correspond to the two yoke parts, and a second isolating portion is provided at a position corresponding to the first isolating portion of the two armatures and the two yokes; the width of the second isolating portion corresponds to the width of the first isolating portion.

[0034] Optionally, the coil assembly further comprises: a coil frame having the same number as the plurality of iron cores;

[0035] Each of the iron cores is respectively inserted into a through hole of the corresponding coil frame; and each of the enameled wires is wound around the outside of the corresponding coil frame.

[0036] Optionally, the number of the plurality of enameled wires is two, including a first enameled wire and a second enameled wire;

[0037] The winding direction of the first enameled wire is the same as the winding direction of the second enameled wire, and the first enameled wire and the second enameled wire are connected in series, so that the magnetic poles generated by the first enameled wire and the second enameled wire have the same direction.

[0038] Optionally, the coil assembly also includes a first pin, a second pin, a third pin and a fourth pin; the first pin, the second pin, the third pin and the fourth pin are respectively arranged at the same end of the coil frame; the first pin is connected to one end of the first enameled wire, the second pin is connected to the other end of the first enameled wire, and is also connected to the third pin, the third pin is connected to one end of the second enameled wire, and the fourth pin is connected to the other end of the second enameled wire.

[0039] Optionally, the magnetic latching relay further comprises: a movable spring lead-out piece, a movable spring piece, a static spring lead-out piece, a push card and an armature assembly; the two yokes further comprise a second arm; the second arm is connected to the first arm;

[0040] The first end of the movable spring piece is connected to the first end of the push card, and the second end of the movable spring piece is connected to one end of the movable spring lead-out piece; a movable contact is provided on one side of the movable spring piece facing the static spring lead-out piece; a static contact is provided on one side of the static spring lead-out piece facing the movable spring piece; the position of the static contact corresponds to the position of the movable contact;

[0041] The second end of the push card is connected to the armature assembly;

[0042] The armature assembly is located between the second arms of the two yokes.

[0043] Optionally, the armature assembly comprises: a fixed bracket, a permanent magnet, two armatures and an enclosure;

[0044] The permanent magnetic steel is stacked between the two armatures to form an I-shape and is fixed by the containing body;

[0045] A rotation hole is provided in the middle of the fixing bracket; the inclusion body is rotatably connected to the fixing bracket through the rotation hole;

[0046] The containing body is provided with a push arm in the direction toward the push card; the push arm is connected to the second end of the push card;

[0047] The two armatures rotate according to the magnetic pole direction of the magnetic field generated by the first enameled wire and the second enameled wire, and are attracted to the second arm of one of the two yokes; when the two armatures rotate, the enclosing body rotates synchronously.

[0048] The embodiments of the present invention include the following advantages:

[0049] The embodiment of the present invention provides a magnetic latching relay, which comprises: a coil assembly and two yokes; the coil assembly comprises a plurality of enameled wires and a plurality of iron cores; the plurality of enameled wires are wound around the plurality of iron cores; the two yokes are located at both ends of the plurality of iron cores and are respectively connected to the plurality of iron cores; a first isolating portion is provided between adjacent iron cores among the plurality of iron cores on the two yokes, so that suction is generated through the plurality of enameled wires, and on the one hand, the magnetic lines of force between the adjacent iron cores are partially isolated by the first isolating portion, and part of the magnetic lines of force of the adjacent iron cores are guided to bypass the first isolating portion, thereby reducing the interference of the magnetic lines of force between the adjacent iron cores, and at the same time, the plurality of enameled wires are used to generate suction. The generated magnetic field brings suction, causing the magnetic lines of force of multiple magnetic fields to partially overlap, thereby increasing the overall suction in the specified direction. On the other hand, the setting of multiple enameled wires reduces the number of turns on each enameled wire when compared with the setting of a single enameled wire, while the total number of turns is the same, thereby reducing the number of turns of the outer ring of the enameled wire, making the total circumference of the multiple enameled wires shorter than the total circumference of the single enameled wire, shortening the total circumference of the enameled wire, and reducing the material used for the enameled wire to reduce costs. On the other hand, the setting of multiple enameled wires increases the total number of turns of the enameled wire when compared with the setting of a single enameled wire, while the total circumference of the enameled wire is the same, thereby increasing the suction generated by the enameled wire.

[0050] On the other hand, in the present invention, the number of the multiple iron cores of the magnetic holding relay is two, including a first iron core and a second iron core, the number of the multiple enameled wires is two, including a first enameled wire and a second enameled wire, the winding direction of the first enameled wire is the same as the winding direction of the second enameled wire, and the first enameled wire and the second enameled wire are connected in series, so that a magnetic field is generated by the two enameled wires, and the magnetic poles of the two magnetic fields are the same, so that the two magnetic fields with the same magnetic poles generate suction in the same direction.

[0051] On the other hand, the first iron core and the second iron core in the magnetic holding relay of the present invention are arranged side by side along the first extension direction of the two yokes, and a first isolation portion is provided on the two yokes between the first iron core and the second iron core. The first isolation portion has an opening, and the opening faces the second arms of the two yokes. The magnetic lines of force of the magnetic field corresponding to the first iron core and the second iron core arranged side by side along the first extension direction of the two yokes are guided through the first isolation portion, so that the two magnetic fields reduce mutual interference and at the same time increase the suction generated by the two magnetic fields.

[0052] On the other hand, the first iron core and the second iron core in the magnetic holding relay of the present invention are arranged side by side along the extension direction of the first arm perpendicular to the two yokes, and a first isolation portion is provided on the two yokes between the first iron core and the second iron core. The first isolation portion is arranged along the extension direction of the yokes to completely isolate or divide the two parts corresponding to the first iron core and the second iron core in the yokes and keep them partially connected. The two yokes are isolated or divided by the first isolation portion, thereby guiding the magnetic lines of force of the magnetic field corresponding to the first iron core and the second iron core arranged side by side along the extension direction of the first arm perpendicular to the two yokes, so that the two magnetic fields reduce mutual interference and at the same time increase the suction generated by the two magnetic fields.

[0053] On the other hand, in the magnetic holding relay of the present invention, a second isolating portion is provided at a position corresponding to the first isolating portion of the two armatures and the two yokes, so that when the magnetic lines of force of the two magnetic fields pass through the two armatures, due to the setting of the second isolating portion, the directions of the magnetic lines of force of the two magnetic fields are guided, thereby avoiding interference between the magnetic lines of force of the two magnetic fields and increasing the suction force generated by the two magnetic fields on the two armatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a structural diagram of a magnetic latching relay provided by an embodiment of the present invention;

[0055] Figure 2 is a structural diagram of a cross section of a coil assembly provided by an embodiment of the present invention;

[0056] Figure 3 is a three-dimensional exploded schematic diagram of a coil assembly provided by an embodiment of the present invention;

[0057] Figure 4 is a schematic diagram of the direction of magnetic lines of force in a magnetic latching relay provided by an embodiment of the present invention;

[0058] Figure 5 is a structural diagram of another magnetic latching relay provided by an embodiment of the present invention;

[0059] Figure 6 is a structural block diagram of a first isolation unit provided by an embodiment of the present invention;

[0060] Figure 7 is a three-dimensional exploded schematic diagram of another coil assembly provided by an embodiment of the present invention;

[0061] Figure 8 It is a schematic diagram of the direction of magnetic lines of force in another magnetic latching relay provided in an embodiment of the present invention.

[0062] Description of reference numerals:

[0063] 1-coil assembly, 2-two yokes, 3-first isolating part, 4-moving spring lead-out piece, 5-moving spring piece, 6-static spring lead-out piece, 7-pushing card, 8-armature assembly, 9-second isolating part, 11-multiple enameled wires, 12-multiple iron cores, 13-coil frame, 14-first pin, 15-second pin, 16-third pin, 17-fourth pin, 111-first enameled wire, 112-second enameled wire, 121-first iron core, 122-second iron core, 81-fixed bracket, 82-permanent magnet, 83-two armatures, 84-enclosing body. DETAILED DESCRIPTION

[0064] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] The material cost of the enameled wire in the coil assembly in the related art is too high. Based on this, one of the core concepts of the embodiment of the present invention is that the present invention provides a magnetic latching relay, which includes: a coil assembly and two yokes, the coil assembly includes multiple enameled wires and multiple iron cores, the multiple enameled wires are located outside the multiple iron cores, the two yokes are located at both ends of the multiple iron cores, and are respectively connected to the multiple iron cores, and a first isolation portion is provided between adjacent iron cores among the multiple iron cores on the two yokes, so that suction is generated through the multiple enameled wires, and on the one hand, the magnetic lines of force between adjacent iron cores are partially isolated by the first isolation portion, and part of the magnetic lines of force of adjacent iron cores are guided to bypass the first isolation portion, thereby reducing the interference of the magnetic lines of force between adjacent iron cores, and at the same time , a magnetic field is generated by multiple enameled wires to bring suction, so that the magnetic lines of force of multiple magnetic fields are partially superimposed, thereby increasing the overall suction in the specified direction. On the other hand, the setting of multiple enameled wires reduces the number of turns on each enameled wire when compared with the setting of a single enameled wire, while the total number of turns is the same, thereby reducing the number of turns of the outer ring of the enameled wire, making the total circumference of the multiple enameled wires shorter than the total circumference of the single enameled wire, shortening the total circumference of the enameled wire, and reducing the material used for the enameled wire to reduce the cost. On the other hand, the setting of multiple enameled wires increases the total number of turns of the enameled wire when compared with the setting of a single enameled wire, while the total circumference of the enameled wire is the same, thereby increasing the suction generated by the enameled wire.

[0066] like Figure 1 , shows a structural diagram of a magnetic latching relay provided in an embodiment of the present invention, and the magnetic latching relay may specifically include: a coil assembly 1 and two yokes 2.

[0067] In the embodiment of the present invention, the coil assembly 1 may include a plurality of enameled wires 11 and a plurality of iron cores 12 .

[0068] In one embodiment, the number of the plurality of cores 12 may be two, including a first core 121 and a second core 122. The number of the plurality of cores 12 in the present invention may be set according to actual needs, and at least two cores are sufficient. The present invention does not specifically limit the specific number of the plurality of cores 12. The present invention is specifically described below by taking two cores, namely the first core 121 and the second core 122, as an example.

[0069] In the embodiment of the present invention, the plurality of enameled wires 11 are located outside the plurality of iron cores 12 .

[0070] In one embodiment, the coil assembly 1 may further include: a coil frame 13 having the same number as the plurality of iron cores 12; each iron core is respectively inserted into a through hole of the corresponding coil frame 13; and each enameled wire is wound around the corresponding coil frame 13. Specifically, the number of the plurality of iron cores 12 in the present invention is two, the number of the coil frames 13 is also two, the first iron core 121 is inserted into a through hole of the coil frame 13 corresponding to the first iron core 121, and the second iron core 122 is inserted into a through hole of the coil frame 13 corresponding to the second iron core 122.

[0071] Among them, the number of multiple through holes corresponds to the number of multiple iron cores 12, one iron core is inserted into one through hole, and the number of multiple enameled wires 11 also corresponds to the number of multiple iron cores 12. In the present invention, two iron cores are taken as a specific example, then the number of multiple through holes is also two, including a first through hole and a second through hole, and the number of multiple enameled wires 11 is also two, including a first enameled wire 111 and a second enameled wire 112. The first iron core 121 is inserted into the first through hole, and the second iron core 122 is inserted into the second through hole. The first enameled wire 111 and the second enameled wire 112 are wound around the outside of the coil frame 13, so that two magnetic fields can be generated by the first enameled wire 111 and the second enameled wire 112.

[0072] In one embodiment, the two yokes 2 include a first arm; the first arm is connected to the first core 121 and the second core 122 respectively; the first core 121 and the second core 122 are arranged side by side along the extension direction of the first arms of the two yokes 2.

[0073] In one embodiment, the number of the plurality of enameled wires 11 is two, including a first enameled wire 111 and a second enameled wire 112. The winding direction of the first enameled wire 111 is the same as the winding direction of the second enameled wire 112, and the first enameled wire 111 and the second enameled wire 112 are connected in series, so that the magnetic pole directions generated by the first enameled wire 111 and the second enameled wire 112 are the same. Therefore, by setting the first enameled wire 111 and the second enameled wire 112 in the same winding direction and in series, the two magnetic fields generated are two magnetic fields with the same magnetic pole directions, and the two magnetic fields are partially superimposed, thereby increasing the suction brought by the magnetic field.

[0074] In an embodiment of the present invention, two yokes 2 are located at both ends of a plurality of iron cores and are respectively connected to a plurality of iron cores 12. A first isolating portion 3 is provided on the upper portion of the two yokes 2 and between adjacent iron cores among the plurality of iron cores 12. The two yokes 2 may be L-shaped, and the two yokes include a first arm and a second arm. The first arms of the two yokes 2 are respectively fitted with the two ends of the coil frame 13. The first arms of the two yokes 2 are respectively connected to the plurality of iron cores 12. The first isolating portion 3 is provided on the first arms of the two yokes 2, and the second arm is connected to the first arm. The second arm may be vertically connected to the first arm, or may be connected at a certain inclination angle.

[0075] In one embodiment, the two yokes 2 may further include a second arm; the second arm is connected to the first arm; a first isolating portion 3 is provided between the first core 121 and the second core 122 on the two yokes 2, and the first isolating portion 3 has an opening, and the opening faces the second arms of the two yokes 2. The position of the first core 121 corresponds to the opening direction of the first isolating portion 3, and the position of the second core 122 corresponds to the closing direction of the first isolating portion 3. In the present invention, when the first enameled wire 111 and the second enameled wire 112 are energized, two corresponding magnetic fields are generated. The first isolating portion 3 in the present invention is used to guide the direction of the magnetic field lines generated by the first enameled wire 111 and the second enameled wire 112 when energized, so as to avoid mutual interference between the two magnetic fields generated by the two enameled wires, and try to avoid the magnetic field lines of the magnetic field generated by the first enameled wire 111 from entering the magnetic field of the second enameled wire 112, and the magnetic field lines of the magnetic field generated by the second enameled wire 112 from entering the magnetic field of the first enameled wire 111. It should be noted that the present invention does not specifically limit the shape of the first isolating portion 3. The shape of the first isolating portion 3 can be U-shaped, C-shaped, or other shapes. The design of the shape of the first isolating portion 3 can achieve the purpose of reducing the interference of the magnetic field generated by the two enameled wires and increasing the suction brought by the magnetic field generated by the two enameled wires.

[0076] In the embodiment of the present invention, Figure 2As shown, a structural diagram of a cross section of a coil assembly provided by an embodiment of the present invention is shown, wherein the coil assembly 1 includes a coil frame 13, an enameled wire (111 or 112) and an iron core (121 or 122). The iron core (121 or 122) is inserted into the through hole of the coil frame 13, the enameled wire (111 or 112) is wound around the outside of the coil frame 13, and two yokes 2 are respectively arranged at both ends of the coil frame 13, and the two yokes 2 are respectively connected to the two ends of the iron core (121 or 122). In the present invention, the iron core (121 or 122) is vertically arranged in the two coil frames 13, and the central axis of the iron core (121 or 122) is perpendicular to the coil frame 13. The present invention winds the enameled wire (111 or 112) around the coil frame 13. When the enameled wire (111 or 112) is energized, the enameled wire (111 or 112) can generate a magnetic field, and the two ends of the iron core (121 or 122) are two magnetic poles. The strength of the magnetic field increases as the number of turns of the enameled wire (111 or 112) increases.

[0077] In one embodiment, the coil assembly 1 may further include a first pin 14, a second pin 15, a third pin 16 and a fourth pin 17; the first pin 14, the second pin 15, the third pin 16 and the fourth pin 17 are respectively arranged at the same end of the coil frame 13; the first pin 14 is connected to one end of the first enameled wire 111, the second pin 15 is connected to the other end of the first enameled wire 111, and is simultaneously connected to the third pin 16, the third pin 16 is connected to one end of the second enameled wire 112, and the fourth pin 17 is connected to the other end of the second enameled wire 112. In the present invention, the second pin 15 and the third pin 16 may be connected by a wire or by other connection methods. The first pin 14 and the fourth pin 17 are used to connect to the circuit or power supply outside the magnetic latching relay, so that the first enameled wire 111 and the second enameled wire 112 are connected to the external circuit or power supply, so that the first enameled wire 111 and the second enameled wire 112 generate a magnetic field to bring suction when power is turned on.

[0078] like Figure 3 , which shows a three-dimensional exploded schematic diagram of a coil assembly provided by an embodiment of the present invention.

[0079] In the embodiment of the present invention, the coil assembly 1 includes a coil frame 13, a first enameled wire 111, a second enameled wire 112, a first iron core 121, a second iron core 122, a first pin 14, a second pin 15, a third pin 16 and a fourth pin 17. The first iron core 121 and the second iron core 122 are respectively inserted into two through holes of the coil frame 13, the first enameled wire 111 and the second enameled wire 112 are wound outside the coil frame 13, the first enameled wire 111 and the second enameled wire 112 are wound in the same direction, and the first enameled wire 111 and the second enameled wire 112 are connected in series, so that the magnetic poles generated by the first enameled wire 111 and the second enameled wire 112 have the same direction, so that the magnetic poles of the magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 have the same direction and are partially superimposed, thereby increasing the suction brought by the magnetic field.

[0080] In the present invention, the first pin 14, the second pin 15, the third pin 16 and the fourth pin 17 are respectively arranged at the same end of the coil frame 13 and can pass through the coil frame 13. The first pin 14 is connected to one end of the first enameled wire 111, the second pin 15 is connected to the other end of the first enameled wire 111, and is also connected to the third pin 16. The third pin 16 is connected to one end of the second enameled wire 112, and the fourth pin 17 is connected to the other end of the second enameled wire 112. In the present invention, the first pin 14 and the fourth pin 17 are used to connect to the circuit or power supply outside the magnetic latching relay, so that the first coil enameled wire and the second coil enameled wire are energized with the external circuit or power supply, so that the first enameled wire 111 and the second enameled wire 112 generate a magnetic field to bring suction when energized.

[0081] In an embodiment of the present invention, the two yokes 2 may include a first arm and a second arm, the first arm being connected to the first core 121 and the second core 122, the second arm being connected to the first arm, and a first isolating portion 3 is provided on the first arms of the two yokes 2 at a position corresponding to at least part of the first enameled wire 111, the first isolating portion 3 having an opening, which may be U-shaped, and the opening is oriented toward the second arms of the two yokes 2, so that the first core 121 corresponds to the opening direction of the first isolating portion 3, and the second core 122 corresponds to the closing direction of the first isolating portion 3. In the present invention, the first isolating portion 3 is used to guide the direction of the magnetic field lines of the magnetic field generated by the first enameled wire 111 and the second enameled wire 112 when power is applied, so as to avoid mutual interference between the two magnetic fields generated by the first enameled wire 111 and the second enameled wire 112, and to try to avoid the magnetic field lines of the magnetic field generated by the first enameled wire 111 flowing into the magnetic field generated by the second enameled wire 112, and the magnetic field lines of the magnetic field generated by the second enameled wire 112 flowing into the magnetic field generated by the first enameled wire 111.

[0082] like Figure 4As shown, a schematic diagram of the direction of magnetic lines of force in a magnetic holding relay provided by an embodiment of the present invention is shown. The bold dotted line is the direction of the magnetic lines of force of the magnetic field generated by the first enameled wire 111, and the thinner dotted line is the direction of the magnetic lines of force of the magnetic field generated by the second enameled wire 112. The two yokes 2 prevent the magnetic field generated by the first enameled wire 111 and the second enameled wire 112 from spreading outward, and enclose the magnetic lines of force of the generated magnetic field between the two yokes 2, thereby playing a role in guiding the magnetic lines of force. The U-shaped first isolating portion 3 can effectively block the magnetic lines of force of the magnetic field generated by the first enameled wire 111 from directly entering the magnetic field generated by the second enameled wire 112, and the magnetic lines of force of the magnetic field generated by the second enameled wire 112 directly enter the magnetic field generated by the first enameled wire 111, guiding the direction of the two magnetic lines of force, thereby allowing more magnetic lines of force to enter the second arms of the two yokes 2, and increasing the suction force in the direction of the second arms of the two yokes 2.

[0083] In the embodiment of the present invention, Figure 1 As shown, the magnetic holding relay may also include: a moving spring lead-out piece 4, a moving spring piece 5, a static spring lead-out piece 6, a pushing card 7 and an armature assembly 8; the two yokes also include a second arm: the second arm is connected to the first arm; the first end of the moving spring piece 5 is connected to the first end of the pushing card 7, and the second end of the moving spring piece 5 is connected to one end of the moving spring lead-out piece 4; a moving contact is provided on the side of the moving spring piece 5 facing the static spring lead-out piece 6; a static contact is provided on the side of the static spring lead-out piece 6 facing the moving spring piece 5; the position of the static contact corresponds to the position of the moving contact; the second end of the pushing card 7 is connected to the armature assembly 8; the armature assembly 8 is located between the second arms of the two yokes 2.

[0084] In the present invention, when a magnetic field is generated by the first enameled wire 111 and the second enameled wire 112, it can bring about a suction force on the armature assembly 8, and by controlling the direction of power conduction in the first enameled wire 111 and the second enameled wire 112, the magnetic pole direction of the magnetic field generated by the first enameled wire 111 and the second enameled wire 112 can be changed, and the direction of the suction force on the armature assembly 8 can be further controlled. By controlling the rotation of the armature assembly 8, the push card 7 can be driven to be displaced, and the movable spring piece 5 can also be displaced, and then the contact state between the movable contact on the movable spring piece 5 and the static contact on the static spring lead-out piece 6 can be controlled, wherein the contact state between the movable contact on the movable spring piece 5 and the static contact on the static spring lead-out piece 6 can include contact and non-contact.

[0085] In one embodiment, the armature assembly 8 may include: a fixed bracket 81, a permanent magnet 82, two armatures 83 and an enclosing body 84; the permanent magnet 82 is stacked between the two armatures 83 to form an I-shape, and is fixed by the enclosing body 84; a rotating hole is provided in the middle of the fixed bracket 81; the enclosing body 84 is rotatably connected to the fixed bracket 81 through the rotating hole; the enclosing body 84 is provided with a pushing arm facing the direction of the pushing card 7; the pushing arm is connected to the second end of the pushing card 7; the two armatures 83 rotate according to the magnetic pole direction of the magnetic field generated by the first enameled wire 111 and the second enameled wire 112, and are attracted to the second arm of one of the two yokes 2; the enclosing body 84 rotates synchronously when the two armatures 83 rotate.

[0086] In the present invention, two magnetic fields are generated by the first enameled wire 111 and the second enameled wire 112, thereby bringing about a suction force on the two armatures 83. Because the magnetic poles of the permanent magnet 82 are fixed, the permanent magnet 82 is overlapped with the two armatures 83, and therefore, the two armatures 83 also have a certain magnetism, and the magnetic poles are the same as the magnetic poles of the permanent magnet 82. By controlling the direction of power supply in the first enameled wire 111 and the second enameled wire 112, the magnetic pole directions of the magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 can be changed, and the direction of the suction force on the two armatures 83 can be further controlled, and then the two armatures 83 can be controlled to rotate and be attracted to the second arm of one of the two yokes 2. When the two armatures 83 rotate, the enclosing body 84 also rotates synchronously. When the enclosing body 84 rotates, the pushing arm on the enclosing body 84 will drive the pushing card 7 to move, and further drive the moving spring piece 5 to move, and then the contact state between the moving contact on the moving spring piece 5 and the static contact on the static spring lead-out piece 6 can be controlled. The function of the permanent magnet 82 in the present invention is to keep the two armatures 83 and the second arm of one of the two yokes 2 attracted when the two armatures 83 are attracted to the second arm of one of the two yokes 2 and when the first coil and the second coil are not energized, that is, when no magnetic field is generated.

[0087] The embodiment of the present invention provides a magnetic latching relay, which comprises: a coil assembly and two yokes; the coil assembly comprises a plurality of enameled wires and a plurality of iron cores; the plurality of enameled wires are located outside the plurality of iron cores; the two yokes are located at both ends of the plurality of iron cores and are respectively connected to the plurality of iron cores; a first isolating portion is provided between adjacent iron cores among the plurality of iron cores on the two yokes, so that suction is generated through the plurality of enameled wires, and on the one hand, the magnetic lines of force between the adjacent iron cores are partially isolated by the first isolating portion, and part of the magnetic lines of force of the adjacent iron cores are guided to bypass the first isolating portion, thereby reducing the interference of the magnetic lines of force between the adjacent iron cores, and at the same time, the magnetic lines of force generated by the plurality of enameled wires are partially isolated by the first isolating portion. The magnetic field brings suction, causing the magnetic lines of force of multiple magnetic fields to partially overlap, thereby increasing the overall suction in the specified direction. On the other hand, the setting of multiple enameled wires reduces the number of turns on each enameled wire when compared with the setting of a single enameled wire, while the total number of turns is the same, thereby reducing the number of turns of the outer ring of the enameled wire, making the total circumference of the multiple enameled wires shorter than that of a single enameled wire, shortening the total circumference of the enameled wire, and reducing the material used for the enameled wire to reduce costs. On the other hand, the setting of multiple enameled wires increases the total number of turns of the enameled wire when compared with the setting of a single enameled wire, while the total circumference of the enameled wire is the same, thereby increasing the suction generated by the enameled wire.

[0088] like Figure 5 , shows a structural diagram of another magnetic latching relay provided in an embodiment of the present invention, and the magnetic latching relay may specifically include: a coil assembly 1 and two yokes 2.

[0089] In the embodiment of the present invention, the coil assembly 1 may include a plurality of enameled wires 11 and a plurality of iron cores 12 .

[0090] In one embodiment, the number of the plurality of cores 12 may be two, including a first core 121 and a second core 122. The number of the plurality of cores 12 in the present invention may be set according to actual needs, and at least two cores are sufficient. The present invention does not specifically limit the specific number of the plurality of cores 12. The present invention is specifically described below by taking two cores, namely the first core 121 and the second core 122, as an example.

[0091] In the embodiment of the present invention, the plurality of enameled wires 11 are located outside the plurality of iron cores 12 .

[0092] In one embodiment, the coil assembly 1 may further include: a coil frame 13 having the same number as the plurality of iron cores 12; each iron core is respectively inserted into a through hole of the corresponding coil frame 13; and each enameled wire 11 is wound around the corresponding coil frame 13. Specifically, the number of the plurality of iron cores 12 in the present invention is two, the number of the coil frames 13 is also two, the first iron core 121 is inserted into a through hole of the coil frame 13 corresponding to the first iron core 121, and the second iron core 122 is inserted into a through hole of the coil frame 13 corresponding to the second iron core 122.

[0093] Among them, the number of multiple through holes corresponds to the number of multiple iron cores 12, one iron core is inserted into one through hole, and the number of multiple enameled wires 11 also corresponds to the number of multiple iron cores 12. In the present invention, two iron cores are taken as a specific example, then the number of multiple through holes is also two, including a first through hole and a second through hole, and the number of multiple enameled wires 11 is also two, including a first enameled wire 111 and a second enameled wire 112. The first iron core 121 is inserted into the first through hole, and the second iron core 122 is inserted into the second through hole. The first enameled wire 111 and the second enameled wire 112 are wound around the outside of the coil frame 13, so that two magnetic fields can be generated by the first enameled wire 111 and the second enameled wire 112.

[0094] In one embodiment, the two yokes 2 include a first arm and a second arm; the first arm is connected to the first core 121 and the second core 122 respectively; the first core 121 and the second core 122 are arranged side by side along an extension direction perpendicular to the first arms of the two yokes 2.

[0095] In one embodiment, the number of the plurality of enameled wires 11 is two, including a first enameled wire 111 and a second enameled wire 112. The winding direction of the first enameled wire 111 is the same as the winding direction of the second enameled wire 112, and the first enameled wire 111 and the second enameled wire 112 are connected in series, so that the magnetic pole directions generated by the first enameled wire 111 and the second enameled wire 112 are the same. Therefore, by setting the first enameled wire 111 and the second enameled wire 112 in the same winding direction and in series, the two magnetic fields generated are two magnetic fields with the same magnetic pole directions, and the two magnetic fields are partially superimposed, thereby increasing the suction brought by the magnetic field.

[0096] In an embodiment of the present invention, two yokes 2 are located at both ends of a plurality of iron cores and are respectively connected to a plurality of iron cores 12. A first isolating portion 3 is provided on the upper portion of the two yokes 2 and between adjacent iron cores among the plurality of iron cores 12. The two yokes 2 may be L-shaped, and the two yokes include a first arm and a second arm. The first arms of the two yokes 2 are respectively fitted with the two ends of the coil frame 13. The first arms of the two yokes 2 are respectively connected to the plurality of iron cores 12. The first isolating portion 3 is provided on the first arms of the two yokes 2, and the second arm is connected to the first arm. The second arm may be vertically connected to the first arm, or may be connected at a certain inclination angle.

[0097] In one embodiment, a first isolation portion 3 is provided on the two yokes 2 between the first core 121 and the second core 122; the first isolation portion 3 is arranged along the extension direction of the yoke, completely isolating or dividing the two parts of the yoke corresponding to the first core 121 and the second core 122 and keeping them partially connected.

[0098] In one embodiment, a first isolating portion 3 is provided between the first core 121 and the second core 122 on the two yokes 2. The first isolating portion 3 is provided along the extension direction of the yokes to completely isolate or separate the two portions of the yokes corresponding to the first core 121 and the second core 122 and keep them partially connected. Figure 5 As shown in Figure 5 A first isolating portion 3 is provided between the first core 121 and the second core 122 on the two yokes 2. The first isolating portion 3 is provided along the extension direction of the yokes to completely isolate the two parts of the yokes corresponding to the first core 121 and the second core 122. Figure 6 As shown, a structural block diagram of a first isolation part provided in an embodiment of the present invention is shown, a first isolation part 3 is provided on the two yokes 2 between the first core 121 and the second core 122, and the first isolation part 3 is arranged along the extension direction of the yoke, dividing the two parts of the yoke corresponding to the first core 121 and the second core 122 and keeping them partially connected.

[0099] In the present invention, two corresponding magnetic fields are generated when the first enameled wire 111 and the second enameled wire 112 are energized. The first isolating portion 3 in the present invention is used to guide the direction of the magnetic field lines of the first enameled wire 111 and the second enameled wire 112 when energized, thereby avoiding the two magnetic fields generated by the two enameled wires from interfering with each other, and avoiding as much as possible the magnetic field lines of the magnetic field generated by the first enameled wire 111 from entering the magnetic field of the second enameled wire 112, and the magnetic field lines of the magnetic field generated by the second enameled wire 112 from entering the magnetic field of the first enameled wire 111.

[0100] In the embodiment of the present invention, Figure 2 As shown, a structural diagram of a cross section of a coil assembly provided by an embodiment of the present invention is shown, wherein the coil assembly 1 includes a coil frame 13, an enameled wire (111 or 112) and an iron core (121 or 122). The iron core (121 or 122) is inserted into the through hole of the coil frame 13, the enameled wire (111 or 112) is wound around the outside of the coil frame 13, and two yokes 2 are respectively arranged at both ends of the coil frame 13, and the two yokes 2 are respectively connected to the two ends of the iron core (121 or 122). In the present invention, the iron core (121 or 122) is vertically arranged in the two coil frames 13, and the central axis of the iron core (121 or 122) is perpendicular to the coil frame 13. The present invention winds the enameled wire (111 or 112) around the coil frame 13. When the enameled wire (111 or 112) is energized, the enameled wire (111 or 112) can generate a magnetic field, and the two ends of the iron core (121 or 122) are two magnetic poles. The strength of the magnetic field increases as the number of turns of the enameled wire (111 or 112) increases.

[0101] In one embodiment, the coil assembly 1 may further include a first pin 14, a second pin 15, a third pin 16 and a fourth pin 17; the first pin 14, the second pin 15, the third pin 16 and the fourth pin 17 are respectively arranged at the same end of the coil frame 13; the first pin 14 is connected to one end of the first enameled wire 111, the second pin 15 is connected to the other end of the first enameled wire 111, and is simultaneously connected to the third pin 16, the third pin 16 is connected to one end of the second enameled wire 112, and the fourth pin 17 is connected to the other end of the second enameled wire 112. In the present invention, the second pin 15 and the third pin 16 may be connected by a wire, or may be connected by other connection methods. The first pin 14 and the fourth pin 17 are used to connect to a circuit or power supply outside the magnetic latching relay, so that the first enameled wire 111 and the second enameled wire 112 are connected to the external circuit or power supply, so that the first enameled wire 111 and the second enameled wire 112 are energized to generate a magnetic field to bring about suction.

[0102] like Figure 7 , which is a three-dimensional exploded schematic diagram of another coil assembly provided by an embodiment of the present invention.

[0103] In the embodiment of the present invention, the coil assembly 1 includes a coil frame 13, a first enameled wire 111, a second enameled wire 112, a first iron core 121, a second iron core 122, a first pin 14, a second pin 15, a third pin 16 and a fourth pin 17. The first iron core 121 and the second iron core 122 are respectively inserted into two through holes of the coil frame 13, the first enameled wire 111 and the second enameled wire 112 are wound outside the coil frame 13, the first enameled wire 111 and the second enameled wire 112 are wound in the same direction, and the first enameled wire 111 and the second enameled wire 112 are connected in series, so that the magnetic poles generated by the first enameled wire 111 and the second enameled wire 112 have the same direction, so that the magnetic poles of the magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 have the same direction and are partially superimposed, thereby increasing the suction brought by the magnetic field.

[0104] In the present invention, the first pin 14, the second pin 15, the third pin 16 and the fourth pin 17 are respectively arranged at the same end of the coil frame 13 and can pass through the coil frame 13. The first pin 14 is connected to one end of the first enameled wire 111, the second pin 15 is connected to the other end of the first enameled wire 111, and is also connected to the third pin 16. The third pin 16 is connected to one end of the second enameled wire 112, and the fourth pin 17 is connected to the other end of the second enameled wire 112. In the present invention, the first pin 14 and the fourth pin 17 are used to connect to the circuit or power supply outside the magnetic latching relay, so that the first coil enameled wire and the second coil enameled wire are energized with the external circuit or power supply, so that the first enameled wire 111 and the second enameled wire 112 are energized to generate a magnetic field to bring suction.

[0105] In the embodiment of the present invention, a first isolating portion 3 is provided between the first core 121 and the second core 122 on the two yokes 2. The first isolating portion 3 is provided along the extension direction of the yoke to completely isolate the two parts of the yoke corresponding to the first core 121 and the second core 122. In the present invention, the first isolating portion 3 can also separate the two parts of the yoke corresponding to the first core 121 and the second core 122 and keep them partially connected, such as Figure 6 The first isolating portion 3 in the present invention is used to guide the direction of the magnetic field lines generated when the first enameled wire 111 and the second enameled wire 112 are energized, thereby avoiding the two magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 from interfering with each other, and avoiding as much as possible that the magnetic field lines generated by the first enameled wire 111 flow into the magnetic field generated by the second enameled wire 112, and the magnetic field lines generated by the second enameled wire 112 flow into the magnetic field generated by the first enameled wire 111.

[0106] like Figure 8 As shown, a schematic diagram of the direction of magnetic lines of force in another magnetic latching relay provided by an embodiment of the present invention is shown. The bold dashed line is the direction of the magnetic lines of force of the magnetic field generated by the first enameled wire 111, and the thinner dashed line is the direction of the magnetic lines of force of the magnetic field generated by the second enameled wire 112. The two yokes 2 prevent the magnetic field generated by the first enameled wire 111 and the second enameled wire 112 from spreading outward, and enclose the magnetic lines of force of the generated magnetic field between the two yokes 2, which plays a role in guiding the magnetic lines of force. The first isolation portion 3 completely isolates or divides the two parts of the yoke corresponding to the first iron core 121 and the second iron core 122 and keeps them partially connected, which can effectively prevent the magnetic lines of force of the magnetic field generated by the first enameled wire 111 from directly entering the magnetic field generated by the second enameled wire 112, and the magnetic lines of force of the magnetic field generated by the second enameled wire 112 directly enter the magnetic field generated by the first enameled wire 111, guide the direction of the two magnetic lines of force, and then allow more magnetic lines of force to enter the second arms of the two yokes 2, increasing the suction force in the direction of the second arms of the two yokes 2.

[0107] In the embodiment of the present invention, Figure 5 As shown, the magnetic holding relay may also include: a moving spring lead-out piece 4, a moving spring piece 5, a static spring lead-out piece 6, a pushing card 7 and an armature assembly 8; the two yokes also include a second arm: the second arm is connected to the first arm; the first end of the moving spring piece 5 is connected to the first end of the pushing card 7, and the second end of the moving spring piece 5 is connected to one end of the moving spring lead-out piece 4; a moving contact is provided on the side of the moving spring piece 5 facing the static spring lead-out piece 6; a static contact is provided on the side of the static spring lead-out piece 6 facing the moving spring piece 5; the position of the static contact corresponds to the position of the moving contact; the second end of the pushing card 7 is connected to the armature assembly 8; the armature assembly 8 is located between the second arms of the two yokes 2.

[0108] In the present invention, when a magnetic field is generated by the first enameled wire 111 and the second enameled wire 112, it can bring about suction to the armature assembly 8, and the direction of power conduction in the first enameled wire 111 and the second enameled wire 112 can be controlled, so that the magnetic pole direction of the magnetic field generated by the first enameled wire 111 and the second enameled wire 112 can be changed, and the direction of the suction to the armature assembly 8 can be further controlled. By controlling the rotation of the armature assembly 8, the push card 7 can be driven to send displacement, causing the movable spring piece 5 to also be displaced, and then the contact state between the moving contact on the movable spring piece 5 and the static contact on the static spring lead-out piece 6 can be controlled, wherein the contact state between the moving contact on the movable spring piece 5 and the static contact on the static spring lead-out piece 6 can include contact and non-contact.

[0109] In one embodiment, the armature assembly 8 may include: a fixed bracket 81, a permanent magnet 82, two armatures 83 and an enclosing body 84; the permanent magnet 82 is stacked between the two armatures 83 to form an I-shape, and is fixed by the enclosing body 84; a rotating hole is provided in the middle of the fixed bracket 81; the enclosing body 84 is rotatably connected to the fixed bracket 81 through the rotating hole; the enclosing body 84 is provided with a pushing arm facing the direction of the pushing card 7; the pushing arm is connected to the second end of the pushing card 7; the two armatures 83 rotate according to the magnetic pole direction of the magnetic field generated by the first enameled wire 111 and the second enameled wire 112, and are attracted to the second arm of one of the two yokes 2; the enclosing body 84 rotates synchronously when the two armatures 83 rotate.

[0110] In the present invention, two magnetic fields are generated by the first enameled wire 111 and the second enameled wire 112, thereby bringing about a suction force on the two armatures 83. Because the magnetic poles of the permanent magnet 82 are fixed, the permanent magnet 82 is overlapped with the two armatures 83, and therefore, the two armatures 83 also have a certain magnetism, and the magnetic poles are the same as the magnetic poles of the permanent magnet 82. By controlling the direction of power supply in the first enameled wire 111 and the second enameled wire 112, the magnetic pole directions of the magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 can be changed, and the direction of the suction force on the two armatures 83 can be further controlled, and then the two armatures 83 can be controlled to rotate and be attracted to the second arm of one of the two yokes 2. When the two armatures 83 rotate, the enclosing body 84 also rotates synchronously. When the enclosing body 84 rotates, the pushing arm on the enclosing body 84 will drive the pushing card 7 to move, and further drive the moving spring piece 5 to move, and then the contact state between the moving contact on the moving spring piece 5 and the static contact on the static spring lead-out piece 6 can be controlled. The function of the permanent magnet 82 in the present invention is to keep the two armatures 83 and the second arm of one of the two yokes 2 attracted when the two armatures 83 are attracted to the second arm of one of the two yokes 2 and when the first coil and the second coil are not energized, that is, when no magnetic field is generated.

[0111] In one embodiment, the magnetic latching relay may further include: an armature assembly 8; the armature assembly 8 may include: two armatures 83; the two armatures 83 correspond to the two yokes 2, and the positions of the two armatures 83 corresponding to the first isolating portions 3 of the two yokes 2 are provided with a second isolating portion 9; the width of the second isolating portion 9 corresponds to the width of the first isolating portion 3. Therefore, when the magnetic force lines of the two magnetic fields generated by the first enameled wire 111 and the second enameled wire 112 pass through the two armatures 83, the second isolating portion 9 is provided to guide the directions of the magnetic force lines of the two magnetic fields, avoid interference between the magnetic force lines of the two magnetic fields, and increase the suction force generated by the two magnetic fields on the two armatures 83.

[0112] The embodiment of the present invention provides a magnetic latching relay, which comprises: a coil assembly and two yokes; the coil assembly comprises a plurality of enameled wires and a plurality of iron cores; the plurality of enameled wires are located outside the plurality of iron cores; the two yokes are located at both ends of the plurality of iron cores and are respectively connected to the plurality of iron cores; a first isolating portion is provided between adjacent iron cores among the plurality of iron cores on the two yokes, so that suction is generated through the plurality of enameled wires, and on the one hand, the magnetic lines of force between the adjacent iron cores are partially isolated by the first isolating portion, and part of the magnetic lines of force of the adjacent iron cores are guided to bypass the first isolating portion, thereby reducing the interference of the magnetic lines of force between the adjacent iron cores, and at the same time, the magnetic lines of force generated by the plurality of enameled wires are partially isolated by the first isolating portion. The magnetic field brings suction, causing the magnetic lines of force of multiple magnetic fields to partially overlap, thereby increasing the overall suction in the specified direction. On the other hand, the setting of multiple enameled wires reduces the number of turns on each enameled wire when compared with the setting of a single enameled wire, while the total number of turns is the same, thereby reducing the number of turns of the outer ring of the enameled wire, making the total circumference of the multiple enameled wires shorter than that of a single enameled wire, shortening the total circumference of the enameled wire, and reducing the material used for the enameled wire to reduce costs. On the other hand, the setting of multiple enameled wires increases the total number of turns of the enameled wire when compared with the setting of a single enameled wire, while the total circumference of the enameled wire is the same, thereby increasing the suction generated by the enameled wire.

[0113] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0114] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0115] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0116] The above is a detailed introduction to a magnetic latching relay provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A magnetic latching relay, characterized in that: include: a coil assembly and two yokes; The coil assembly includes a plurality of enameled wires and a plurality of iron cores; The plurality of enameled wires are located outside the plurality of iron cores; The two yokes are located at two ends of the plurality of iron cores and are respectively connected to the plurality of iron cores; a first isolation portion is provided on the two yokes and between adjacent iron cores among the plurality of iron cores.

2. The magnetic latching relay according to claim 1, characterized in that: The number of the plurality of cores is two, including a first core and a second core.

3. The magnetic latching relay according to claim 2, characterized in that: The two yokes include a first arm; the first arm is connected to the first iron core and the second iron core respectively; The first iron core and the second iron core are arranged side by side along the extending direction of the first arms of the two yokes.

4. The magnetic latching relay according to claim 3, characterized in that: The two yokes further include a second arm; the second arm is connected to the first arm; The first isolating portion is provided on the two yokes and located between the first iron core and the second iron core; the first isolating portion has an opening, and the opening faces the second arms of the two yokes.

5. The magnetic latching relay according to claim 2, characterized in that: The two yokes include a first arm; the first arm is connected to the first iron core and the second iron core respectively; The first iron core and the second iron core are arranged side by side along an extending direction of the first arms perpendicular to the two yokes.

6. The magnetic latching relay according to claim 5, characterized in that: The first isolating portion is provided on the two yokes between the first core and the second core; the first isolating portion is provided along the extension direction of the yoke to completely isolate or divide the two parts of the yoke corresponding to the first core and the second core and keep them partially connected.

7. The magnetic latching relay according to claim 6, characterized in that: The magnetic latching relay further comprises: an armature assembly; the armature assembly comprises: two armatures; The two armatures correspond to the two yoke parts, and a second isolating portion is provided at a position corresponding to the first isolating portion of the two armatures and the two yokes; the width of the second isolating portion corresponds to the width of the first isolating portion.

8. The magnetic latching relay according to claim 1, 4 or 6, characterized in that: The coil assembly further includes: a coil frame having the same number as the plurality of iron cores; Each of the iron cores is respectively inserted into a through hole of the corresponding coil frame; and each of the enameled wires is wound around the outside of the corresponding coil frame.

9. The magnetic latching relay according to claim 8, characterized in that: The number of the plurality of enameled wires is two, including a first enameled wire and a second enameled wire; The winding direction of the first enameled wire is the same as the winding direction of the second enameled wire, and the first enameled wire and the second enameled wire are connected in series, so that the magnetic poles generated by the first enameled wire and the second enameled wire have the same direction.

10. The magnetic latching relay according to claim 9, characterized in that: The coil assembly also includes a first pin, a second pin, a third pin and a fourth pin; the first pin, the second pin, the third pin and the fourth pin are respectively arranged at the same end of the coil frame; the first pin is connected to one end of the first enameled wire, the second pin is connected to the other end of the first enameled wire, and is also connected to the third pin, the third pin is connected to one end of the second enameled wire, and the fourth pin is connected to the other end of the second enameled wire.

11. The magnetic latching relay according to claim 3 or 5, characterized in that: The magnetic latching relay further comprises: a movable spring lead-out piece, a movable spring piece, a static spring lead-out piece, a push card and an armature assembly; the two yokes further comprise a second arm; the second arm is connected to the first arm; The first end of the movable spring piece is connected to the first end of the push card, and the second end of the movable spring piece is connected to one end of the movable spring lead-out piece; a movable contact is provided on one side of the movable spring piece facing the static spring lead-out piece; a static contact is provided on one side of the static spring lead-out piece facing the movable spring piece; the position of the static contact corresponds to the position of the movable contact; The second end of the push card is connected to the armature assembly; The armature assembly is located between the second arms of the two yokes.

12. The magnetic latching relay according to claim 11, characterized in that: The armature assembly comprises: a fixed bracket, a permanent magnet, two armatures and an enclosure; The permanent magnetic steel is stacked between the two armatures to form an I-shape and is fixed by the containing body; A rotation hole is provided in the middle of the fixing bracket; the inclusion body is rotatably connected to the fixing bracket through the rotation hole; The containing body is provided with a push arm in the direction toward the push card; the push arm is connected to the second end of the push card; The two armatures rotate according to the magnetic pole direction of the magnetic field generated by the first enameled wire and the second enameled wire, and are attracted to the second arm of one of the two yokes; when the two armatures rotate, the enclosing body rotates synchronously.

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