Relay

Abstract

The present disclosure provides a relay, comprising a magnetic circuit portion and an auxiliary monitoring portion, wherein the magnetic circuit portion comprises a coil assembly and an armature assembly arranged on one side of the coil assembly in an X-axis direction, the coil assembly is provided with magnetic drive ends, and in response to polarity change of the magnetic drive ends, the armature assembly rotates around a rotation axis extending in a Z-axis direction; the auxiliary monitoring portion comprises two auxiliary static contact members and an auxiliary movable contact member; the auxiliary movable contact member rotates along with the armature assembly to connect in series or disconnect the two auxiliary static contact members, each auxiliary static contact member is provided with an auxiliary static contact part allowing for abutment by the auxiliary movable contact member in the X-axis direction, and the two auxiliary static contact parts are respectively located on two sides of the rotation axis in the Y-axis direction and close to the armature assembly. The present disclosure achieves a state monitoring function, and a small volume of the relay.

Description

Relay

[0001] The present disclosure claims priority to Chinese Patent Application No. 202411360250.6, filed on September 27, 2024, the entire contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the field of relays, in particular to a relay. BACKGROUND

[0003] The prior art magnetic latching relay generally comprises a housing and a magnetic circuit portion, a contact portion, a push card and an auxiliary monitoring portion accommodated in the housing, the magnetic circuit portion comprises a coil assembly and an armature assembly rotating relative to the coil assembly, the contact portion comprises a movable contact set and a stationary contact set, the movable contact set is provided with a movable contact point, the stationary contact set is provided with a stationary contact point, the push card is driven to move by the armature assembly and drives the movable contact point to close or open the stationary contact point. The magnetic circuit portion has a magnetic latching function, the coil assembly is provided with two magnetic driving ends, the armature assembly comprises a permanent magnet, two armatures and an insulating piece fixedly connected with the permanent magnet and the two armatures, each armature is provided with two attracting portions adapted to attract the magnetic driving ends, in the magnetic latching state, one attracting portion of each armature attracts the corresponding magnetic driving end to form a closed magnetic circuit. In this structure, the auxiliary monitoring portion is generally driven by the armature assembly, and the two sides of the armature assembly where the attracting portions are located generally need to cooperate with the magnetic driving ends, and the space is very limited. In addition, the two sides of the armature assembly along the magnetic pole direction of the permanent magnet generally need to be respectively arranged with coil windings and push cards / contact portions, and the space is also relatively compact. Therefore, if the auxiliary monitoring portion is installed, the space of the housing on the two sides of the magnetic pole direction of the permanent magnet of the armature assembly often needs to be increased, and due to the need to avoid the coil assembly and / or the contact portion / push card, a larger space is required, resulting in a larger volume of the relay, which is not conducive to cost control and meeting the use requirements. SUMMARY

[0004] The present disclosure aims to overcome the above-mentioned defects or problems existing in the background art, and provide a relay with a state monitoring function and a smaller volume.

[0005] To achieve the above-mentioned purpose, the present disclosure and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0006] The technical solution one and the preferred embodiments thereof provide a relay, which comprises a magnetic circuit part and an auxiliary monitoring part, the magnetic circuit part comprises a coil assembly and an armature assembly arranged at one side of the coil assembly along an X-axis direction, the coil assembly is provided with a magnetic driving end, the armature assembly rotates around a rotation axis extending along a Z-axis direction in response to a polarity change of the magnetic driving end; the auxiliary monitoring part comprises two auxiliary static contacts and an auxiliary dynamic contact; the auxiliary dynamic contact rotates with the armature assembly to connect or disconnect the two auxiliary static contacts, each auxiliary static contact is provided with an auxiliary static contact part adapted to be abutted by the auxiliary dynamic contact along the X-axis direction, and the two auxiliary static contact parts are respectively located on two sides of the rotation axis along a Y-axis direction and close to the armature assembly, wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other.

[0007] Based on the technical solution one, the technical solution two is further provided, in the technical solution two and the preferred embodiments thereof, the auxiliary dynamic contact is fixedly connected with the armature assembly, and the fixedly connected position is located between the two auxiliary static contact parts along the Y-axis direction; the two auxiliary static contact parts are respectively located on two sides of the auxiliary dynamic contact along the X-axis direction.

[0008] Based on the technical solution two, the technical solution three is further provided, in the technical solution three and the preferred embodiments thereof, two auxiliary dynamic contact parts are respectively extended on two sides of the fixedly connected position of the auxiliary dynamic contact and the armature assembly; the two auxiliary dynamic contact parts are adapted to abut against the two auxiliary static contact parts respectively, and the extension direction of the auxiliary dynamic contact part is parallel to or forms a preset angle with the length direction of the armature assembly.

[0009] Based on the technical solution three, the technical solution four is further provided, in the technical solution four and the preferred embodiments thereof, the auxiliary dynamic contact is further provided with a connecting part fixedly connected with a first wall in the thickness direction of the armature assembly.

[0010] Based on the technical solution four, the technical solution five is further provided, in the technical solution five and the preferred embodiments thereof, the connecting part is fixedly connected to the first wall along the length direction of the armature assembly.

[0011] Based on the technical solution five, the technical solution six is further provided, in the technical solution six and the preferred embodiments thereof, the auxiliary dynamic contact is in a sheet structure, and the thickness direction of the auxiliary dynamic contact is consistent with the thickness direction of the armature assembly.

[0012] Based on the technical solution five, the technical solution seven is further provided, in the technical solution seven and the preferred embodiments thereof, each auxiliary dynamic contact part is arranged with at least two contact branches spaced apart along the Z-axis direction, and the at least two contact branches are adapted to abut against or separate from the corresponding auxiliary static contact.

[0013] Based on the technical solution seven, the technical solution eight is further provided, in the technical solution eight and the preferred embodiments thereof, each contact branch is adapted to deform along the X-axis direction.

[0014] Based on technical solution five, technical solution nine is further provided, and in the technical solution nine and the preferred embodiments thereof, the magnetic circuit part has a magnetic retention function; the coil assembly is provided with two magnetic driving ends arranged along the Y-axis direction; the armature assembly includes a permanent magnet, two armatures, and an insulating piece, the two armatures are respectively fixed to two magnetic poles of the permanent magnet, each armature is respectively provided with two attraction parts adapted to be attracted to the magnetic driving ends, in the magnetic retention state, the two armatures have one attraction part respectively attracted to the corresponding magnetic driving end to form a closed magnetic circuit passing through the two magnetic driving ends; the insulating piece is fixed to the permanent magnet; the auxiliary moving contact is fixed to the insulating piece on the side close to the second armature; the two auxiliary static contact parts are a first auxiliary static contact part and a second auxiliary static contact part, the first auxiliary static contact part is located on one side of the second armature along the Y-axis direction, and the projection of the first auxiliary static contact part on the projection plane perpendicular to the X direction does not coincide with the projection of the second armature; the second auxiliary static contact part is located on the side of the second armature away from the first armature, and the projection of the second auxiliary static contact part on the projection plane perpendicular to the X direction coincides with the projection of the second armature; the distances between the first auxiliary static contact part and the second auxiliary static contact part and the first plane are not equal, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

[0015] Based on technical solution nine, technical solution ten is further provided, and in the technical solution ten and the preferred embodiments thereof, the two armatures are a first armature and a second armature; the auxiliary moving contact is fixed to the insulating piece on the side close to the second armature; the two auxiliary static contact parts are a first auxiliary static contact part and a second auxiliary static contact part, the first auxiliary static contact part is located on one side of the second armature along the Y-axis direction, and the projection of the first auxiliary static contact part on the projection plane perpendicular to the X direction does not coincide with the projection of the second armature; the second auxiliary static contact part is located on the side of the second armature away from the first armature, and the projection of the second auxiliary static contact part on the projection plane perpendicular to the X direction coincides with the projection of the second armature; the distances between the first auxiliary static contact part and the second auxiliary static contact part and the first plane are not equal, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

[0016] Based on technical solution ten, technical solution eleven is further provided, and in the technical solution eleven and the preferred embodiments thereof, the extension directions of the two auxiliary moving contact parts are inclined relative to the length direction of the armature assembly, and along the orientation from the first auxiliary static contact part to the second auxiliary static contact part along the Y-axis direction, the two auxiliary moving contact parts gradually approach the side where the first armature is located.

[0017] Based on technical solution eleven, technical solution twelve is further provided, and in the technical solution twelve and the preferred embodiments thereof, the angles between the extension directions of the two auxiliary moving contact parts and the length direction of the armature assembly are less than 20°.

[0018] Based on technical solution eleven, technical solution thirteen is further provided, and in the technical solution thirteen and the preferred embodiments thereof, the rotation axis is closer to the side where the first armature is located along the thickness direction of the armature assembly, and the length of the first armature is greater than the length of the second armature.

[0019] Based on technical solution nine, technical solution fourteen is further provided, and in the technical solution fourteen and the preferred embodiments thereof, the insulating piece is provided with a slot opening along the Z-axis direction on one side along the X-axis direction, the connecting part is limitedly matched with the slot, and a anti-disengagement structure is formed between the connecting part and the slot.

[0020] Based on technical solution fourteen, there is also technical solution fifteen, in which the insertion slot extends along the length direction of the armature assembly and penetrates both ends, and the two ends of the auxiliary movable contact extend out of the insertion slot to form auxiliary movable contact parts adapted to abut against the auxiliary stationary contact parts.

[0021] Based on technical solution fifteen, there is also technical solution sixteen, in which a bending part is arranged on the connecting part, and the bending part is limited in position in the width direction of the insertion slot.

[0022] Based on technical solution sixteen, there is also technical solution seventeen, in which the number of the bending parts is two, and the two bending parts are respectively close to the two ends of the insertion slot in the length direction.

[0023] Based on technical solution fourteen, there is also technical solution eighteen, in which the anti-disengagement structure includes a limiting slot and a limiting protrusion matched with the limiting slot; one of the limiting protrusion and the limiting slot is arranged on the slot wall of the insertion slot, and the other is arranged on the connecting part.

[0024] Based on technical solution eighteen, there is also technical solution nineteen, in which the limiting protrusion is arranged on the slot wall of the insertion slot; the connecting part is provided with a deformation part, and the limiting slot is arranged on the deformation part.

[0025] Based on technical solution nineteen, there is also technical solution twenty, in which the deformation part is provided with a guide part matched with the inclined surface of the limiting protrusion towards the slot bottom of the insertion slot to make the deformation part deform away from the limiting protrusion.

[0026] Based on technical solution twenty, there is also technical solution twenty-one, in which a limiting rib extending in the Z-axis direction is further arranged in the insertion slot; the connecting part is further provided with a positioning slot matched with the limiting rib; the connecting part is further provided with a body integrated with the deformation part; and the positioning slot is formed between the body and the deformation part.

[0027] Based on technical solution twenty-one, there is also technical solution twenty-two, in which the limiting rib is matched with the positioning slot in interference.

[0028] Based on technical solution twenty-one, there is also technical solution twenty-three, in which the deformation part includes a first deformation part and a second deformation part, the second deformation part is closer to the slot bottom of the insertion slot than the first deformation part and is provided with the guide part, the first deformation part is provided with the limiting slot, and the positioning slot is formed between the body and the second deformation part.

[0029] Based on any one of technical solutions one to twenty-three, there is further provided technical solution twenty-four, in which the coil assembly is provided with coil windings extending along the Y-axis direction and two yokes arranged along the Y-axis direction, the magnetic driving end is formed on the yokes and extends along a direction perpendicular to the X-axis, the rotation axis is arranged along the X-axis direction away from the coil windings, and two auxiliary static contact portions are located in an area enclosed by the coil windings and the two yokes.

[0030] Based on technical solution twenty-four, there is further provided technical solution twenty-five, in which the coil assembly further includes a receiving member and a contact portion, the coil windings are fixedly connected in the receiving member, the auxiliary moving contact is fixedly connected to one side of the insulating member close to the coil windings, the contact portion and the coil windings are respectively located on two sides of a second plane along the X-axis direction, the second plane is perpendicular to the X-axis direction and passes through the rotation axis, the contact portion includes a moving contact and a static contact, and the moving contact is adapted to be driven by the armature assembly to close or disconnect the static contact.

[0031] Based on technical solution twenty-five, there is further provided technical solution twenty-six, in which the contact portion is provided with a connection terminal, the coil assembly is provided with a signal terminal, and the auxiliary monitoring portion is provided with a lead-out terminal, and the connection terminal, the signal terminal and the lead-out terminal all extend out of the same side of the receiving member along the Y-axis direction.

[0032] Based on technical solution twenty-six, there is further provided technical solution twenty-seven, in which the receiving member is provided with a bottom wall supporting the coil assembly, each auxiliary static contact is further provided with a fixed portion integrated with the auxiliary static contact portion, the fixed portion extends along the Y-axis direction and is provided with the lead-out terminal, and the fixed portion is fixedly connected to the bottom wall of the receiving member.

[0033] From the above description of the present disclosure and its preferred embodiments, it can be seen that, relative to the prior art, the technical solutions of the present disclosure and its preferred embodiments have the following beneficial effects due to the use of the following technical means:

[0034] The inventor of the present disclosure knows through continuous observation, experiment and research that, in addition to the limited space, the existing technical solution that installs an auxiliary monitoring part causes the technical problem of a large size of the relay. The existing auxiliary monitoring part usually includes two types. One is a micro switch standard part with a standard size and a relatively large volume, which cannot be well adapted to the limited space on both sides of the armature assembly. The other is a matching structure of a moving spring sheet and a static spring sheet, which are arranged in the accommodation part with a certain interval. The moving spring sheet needs to be deformed and restored to form a closed and disconnected state with the static spring sheet. The deformation requires a certain space, so the volume is also relatively large and cannot be well adapted to the limited space on both sides of the armature assembly. Therefore, the space of the accommodation part can only be expanded to install the auxiliary monitoring part.

[0035] In the technical solution one and the preferred embodiments thereof, the armature assembly is arranged on one side of the coil assembly along the X-axis direction and rotates around the rotation axis extending along the Z-axis direction, the armature assembly extends along the Y-axis direction, and the space on both sides of the armature assembly along the X-axis direction is limited; the auxiliary moving contact rotates with the armature assembly to connect or disconnect the two auxiliary stationary contacts, each auxiliary stationary contact is provided with an auxiliary stationary contact part adapted to be abutted by the auxiliary moving contact along the X-axis direction, and the two auxiliary stationary contact parts are respectively located on both sides of the rotation axis along the Y-axis direction and close to the armature assembly, thus the auxiliary moving contact and the two auxiliary stationary contact parts form a bridging structure extending along the Y-axis direction, and as long as the auxiliary moving contact has a certain length along the Y-axis direction and can move with the armature assembly, the auxiliary moving contact can be connected or disconnected with the two auxiliary stationary contact parts, thus the length of the auxiliary moving contact along the X-axis direction and the Z-axis direction can be set smaller, and since the two auxiliary stationary contact parts are also arranged along the Y-axis direction, the entire auxiliary monitoring part only needs to occupy a larger space along the Y-axis direction and can occupy a smaller space along the X-axis direction, when the space on both sides of the armature assembly is narrow, the auxiliary moving contact can be set to a sheet structure to minimize the space occupied by the auxiliary moving contact along the X-axis direction, and since the two auxiliary stationary contact parts are close to the armature assembly, the distance between the two auxiliary stationary contact parts along the X-axis direction and the Y-axis direction cannot be too large, so as to further make the space occupied by the auxiliary monitoring part along the Y-axis direction close to the space occupied by the armature assembly along the Y-axis direction, and the space occupied by the auxiliary monitoring part along the X-axis direction can be smaller, thus the entire auxiliary monitoring part can occupy a smaller size on both sides of the armature assembly, the maximum size of the auxiliary monitoring part along the X-axis direction is only the distance between the auxiliary moving contact and the auxiliary stationary contact when they are disconnected, and the space occupied is small, thus as long as the auxiliary monitoring part can avoid the coil assembly or the contact part / push card, the auxiliary monitoring part can be conveniently installed in the limited space on both sides of the armature assembly without excessively increasing the volume of the containing member along the X-axis direction or even without increasing the volume of the containing member along the X-axis direction; in addition, the auxiliary monitoring part in the technical solution occupies a smaller space compared with the standard micro switch, and the position of the terminal of the auxiliary monitoring part can be adjusted as needed, and the structure design is simpler.

[0036] In the technical solution two and the preferred embodiments thereof, the auxiliary moving contact is fixedly connected with the armature assembly and the fixedly connected position is between the two auxiliary static contacts along the Y-axis direction; the two auxiliary static contacts are respectively located on the two sides of the auxiliary moving contact along the X-axis direction, so that the contact pressure of the auxiliary moving contact and the two auxiliary static contacts when the auxiliary moving contact is connected with the two auxiliary static contacts can be more balanced, thereby enabling the auxiliary moving contact to simultaneously contact or disconnect the two auxiliary static contacts. The two auxiliary static contacts are respectively located on the two sides of the auxiliary moving contact along the X-axis direction, and are also staggered with each other along the X-axis direction in the projection of the two auxiliary static contacts on the plane perpendicular to the Y-axis direction, compared with the projection of the two auxiliary static contacts on the projection plane perpendicular to the Y-axis direction overlapping with each other, the processing of the auxiliary moving contact is simpler, and after being arranged in this way, the two surfaces of the auxiliary moving contact facing away from each other respectively contact the two auxiliary static contacts, compared with the surfaces on the same side of the auxiliary moving contact contacting the two auxiliary static contacts, the space in the thickness direction of the auxiliary moving contact is better utilized, thereby facilitating the reduction of the occupied space of the auxiliary monitoring part in the X-axis direction.

[0037] In the technical solution three and the preferred embodiments thereof, the length direction of the armature assembly is the length direction of the armature in the armature assembly; the two auxiliary moving contacts are adapted to contact the two auxiliary static contacts respectively, and the extension directions of the two auxiliary moving contacts are parallel to the length direction of the armature assembly or form a preset included angle, and the preset included angle does not include perpendicularity, so that the auxiliary moving contact occupies a smaller space in the thickness direction of the armature assembly, thereby facilitating the reduction of the occupied space of the auxiliary monitoring part in the X-axis direction; in addition, this arrangement is also conducive to making the auxiliary moving contact into a relatively flat structure in the X-axis direction, thereby facilitating the reduction of the occupied space of the auxiliary monitoring part in the X-axis direction. It should be understood that, in order to reduce the space occupied by the auxiliary monitoring part in the X-axis direction, the distance between the two auxiliary static contacts in the auxiliary monitoring part along the X-axis direction should be as small as possible, and thus, if the extension directions of the two auxiliary moving contacts are parallel to the length direction of the armature assembly, the contact gap between the auxiliary moving contact and the two auxiliary static contacts can be too small, which can cause the auxiliary moving contact to be deformed too much when the armature rotates to contact the two auxiliary static contacts, and the stress borne by the auxiliary moving contact is also larger, which can easily cause fatigue damage or plastic deformation and affect the service life. In this regard, the extension directions of the two auxiliary moving contacts form a preset included angle with the length direction of the armature assembly, so that the auxiliary moving contact has a larger distance from the corresponding two auxiliary static contacts along the X-axis direction in the disconnected state, thereby ensuring that the two auxiliary static contacts are not spaced too far apart along the X-axis direction, and also enabling the auxiliary moving contact to have a longer service life.

[0038] In the fourth aspect and the preferred embodiments thereof, the thickness direction of the armature assembly is the arrangement direction of the two armatures in the armature assembly; the auxiliary movable contact is fixed to the first wall in the thickness direction of the armature assembly, so that the auxiliary movable contact occupies no more space in the Z-axis direction than the armature assembly does, thereby avoiding the setting of the auxiliary monitoring part from increasing the height of the relay in the Z-axis direction.

[0039] In the fifth aspect and the preferred embodiments thereof, the connecting part is fixed to the first wall in the length direction of the armature assembly, which can further reduce the space occupied by the auxiliary movable contact in the Y-axis direction.

[0040] In the sixth aspect and the preferred embodiments thereof, the auxiliary movable contact is in a sheet structure, and its thickness direction is consistent with the thickness direction of the armature assembly, which further reduces the space occupied by the auxiliary movable contact in the X-axis direction.

[0041] In the seventh aspect and the preferred embodiments thereof, the auxiliary static contact part extends in the Z-axis direction, and each auxiliary movable contact part is arranged with at least two contact branches spaced apart in the Z-axis direction, each contact branch being adapted to abut or separate from the corresponding auxiliary static contact, so that when the auxiliary movable contact abuts against the auxiliary static contact part, the current flowing through the auxiliary movable contact is shunted into multiple paths, thereby reducing the resistance of the movable contact and improving the overall current-carrying capacity. Such a setting also facilitates the deformation of the auxiliary movable contact part and reduces the probability that the auxiliary movable contact part cannot contact the auxiliary static contact part due to deformation or vibration, thereby improving the contact reliability.

[0042] In the eighth aspect and the preferred embodiments thereof, each contact branch is adapted to deform in the X-axis direction, and the armature assembly transmits a relatively large force in the X-axis direction to the auxiliary movable contact part, which can provide a certain contact pressure to the auxiliary movable contact part and the auxiliary contact part. In other words, by designing the position of the auxiliary static contact, when the armature assembly is rotated to the right position, the abutment of the auxiliary movable contact part against the auxiliary contact part causes the auxiliary movable contact to deform appropriately, thereby facilitating a more stable contact relationship after conduction and higher contact reliability.

[0043] In the ninth aspect and the preferred embodiments thereof, in the magnetic holding state, each of the two armatures has one attracted portion to attract the corresponding magnetic driving end to form a closed magnetic loop passing through the two magnetic driving ends, the closed magnetic loop passes through one attracted portion, one magnetic driving end, the iron core, the other magnetic driving end and the other attracted portion from one magnetic pole of the permanent magnet to the other magnetic pole of the permanent magnet, compared with the closed magnetic loop passing through only one magnetic driving end, the closed magnetic loop has greater magnetic attraction force and more stable magnetic circuit; the attracted portion and the magnetic driving end can still be attracted when the coil assembly is powered off; the auxiliary movable contact and the insulating member are fixedly connected, which is conducive to processing and avoids the influence of the magnetic action of the auxiliary monitoring part on the armature when passing through the current. The rotation axis is centrally arranged along the length direction of the armature assembly, so that the force arms of the two attracted portions of each armature are consistent, and the on reliability is improved.

[0044] In the tenth aspect and the preferred embodiments thereof, the first auxiliary static contact portion is located on one side of the second armature along the Y-axis direction and its projection on the projection plane perpendicular to the X direction does not coincide with the projection of the second armature, and the second auxiliary static contact portion is located on the side of the second armature away from the first armature and its projection on the projection plane perpendicular to the X direction coincides with the projection of the second armature, which is conducive to reducing the distance between the two auxiliary static contact portions in the Y-axis direction, and on the other hand, is conducive to realizing that the distances between the two auxiliary static contact portions and the first plane are not equal, and compared with the scheme that the distances between the two auxiliary static contact portions and the first plane are consistent, when the rotation angle of the auxiliary movable contact is certain, the shorter the distance between the second auxiliary static contact portion located on the side of the second armature away from the first armature and the first plane, the smaller the occupied space of the auxiliary monitoring part in the X-axis direction, so that the above-mentioned setting further reduces the occupied space of the auxiliary monitoring part in the X-axis direction.

[0045] In the eleventh aspect and the preferred embodiments thereof, the extension directions of the two auxiliary movable contact portions are inclined relative to the length direction of the armature assembly, and along the direction from the first auxiliary static contact portion to the second auxiliary static contact portion in the Y-axis direction, the two auxiliary movable contact portions gradually incline to the side where the first armature is located, which is conducive to forming a larger gap between the auxiliary movable contact and the first auxiliary static contact portion and the second auxiliary static contact portion when being disconnected. And as mentioned above, the line connecting the two auxiliary movable contact portions and the length direction of the armature assembly are arranged at a preset angle, so that in the disconnected state, the auxiliary movable contact has a larger distance from the two corresponding auxiliary static contact portions in the X-axis direction, so as to ensure that the two auxiliary static contact portions are not spaced far apart in the X-axis direction, and at the same time, the auxiliary movable contact has a longer service life.

[0046] In the technical solution twelve and the preferred embodiments thereof, the included angle between the connecting line of the two auxiliary moving contacts and the length direction of the armature assembly is less than 20°, in the case of ensuring the disconnection gap of the auxiliary moving contact and the auxiliary stationary contact, the auxiliary moving contact occupies less space in the X-axis direction, and the distance between the two auxiliary stationary contacts in the X-axis direction is smaller, thereby reducing the occupation space of the auxiliary monitoring part in the X-axis direction.

[0047] In the technical solution thirteen and the preferred embodiments thereof, the rotation axis is closer to the side where the first armature is located in the thickness direction of the armature assembly, and the length of the first armature is greater than the length of the second armature. On the one hand, it is more conducive to offsetting the defect that the rotation ranges of the first armature and the second armature are inconsistent due to the eccentric arrangement of the rotation axis in the thickness direction of the armature assembly, thereby ensuring the consistency of the abutment of the attraction parts of the first armature and the second armature and the magnetic driving end and the magnetic flux area. On the other hand, the auxiliary moving contact is fixed to the side of the insulating part close to the second armature, so that the distance between the two auxiliary stationary contacts in the Y-axis direction does not have to be too large to avoid the armature assembly, thereby reducing the occupation space of the auxiliary monitoring part in the Y-axis direction. The first auxiliary stationary contact is located on the side of the second armature along the Y-axis direction, and also makes full use of the space on the side along the Y-axis direction of the second armature due to its shorter length than the first armature.

[0048] In the technical solution fourteen and the preferred embodiments thereof, the side of the insulating part along the X-axis direction is provided with a slot opening in the Z-axis direction, the connecting part is limited in position with the slot and a structure preventing the connecting part from being separated from the slot is formed between the connecting part and the slot. Compared with other fixing methods such as glue dispensing, welding or screwing, the production process is reduced and the production efficiency is higher. Here, the limited position means that the connecting part is limited in position in the extension direction and the width direction of the slot and the rotation around the axis parallel to the X-axis direction after the connecting part is inserted into the slot. Compared with only the clamping method, the limited position of the slot and the connecting part is more stable. The structure preventing the connecting part from being separated from the slot is formed between the connecting part and the slot, which further improves the stability of the structure after the auxiliary moving contact is connected to the insulating part. Here, the structure preventing the connecting part from being separated from the slot means a structure preventing the connecting part from being separated from the slot in the Z-axis direction.

[0049] In the technical solution fifteen and the preferred embodiments thereof, the slot extends along the length direction of the armature assembly and penetrates at both ends, and the two ends of the auxiliary moving contact respectively protrude out of the slot to form auxiliary moving contacts suitable for abutting against the auxiliary stationary contacts. Compared with the solution that the two ends of the auxiliary moving contact do not directly penetrate the slot, the auxiliary monitoring part occupies less space in the X-axis direction.

[0050] In the technical solution sixteen and the preferred embodiments thereof, the setting of the bending part not only realizes the limited position of the slot in the width direction of the slot with a simple structure, but also is conducive to realizing the deformation of the auxiliary moving contact, making the on-off of the auxiliary monitoring part more reliable, and is also conducive to making the structure stability of the part of the connecting part other than the bending part better and ensuring the connection stability with the insulating part.

[0051] In the seventeenth aspect and the preferred embodiments thereof, the two bending portions are respectively close to two ends of the length direction of the insertion slot. On the one hand, the connecting portion and the insertion slot form a limiting fit along the width direction of the insertion slot, which improves the stability of the auxiliary movable contact on the armature assembly. On the other hand, the two bending portions can be used as two deformation fulcrums of the two auxiliary movable contact portions, so that the on-off of the auxiliary monitoring portion is more reliable, and the structure stability of the part of the connecting portion other than the bending portions is better, and the connection stability with the insulating member is ensured.

[0052] In the eighteenth aspect and the preferred embodiments thereof, the anti-disengagement structure includes a limiting slot and a limiting protrusion matched with the limiting slot. One of the limiting protrusion and the limiting slot is arranged on the slot wall of the insertion slot, and the other is arranged on the connecting portion. The structure is simple and easy to process, and the resistance is small during the insertion.

[0053] In the nineteenth aspect and the preferred embodiments thereof, the connecting portion is provided with a deformation portion, and the limiting slot is arranged on the deformation portion. When the connecting portion is inserted into the insertion slot, the deformation portion deforms to form a limiting fit between the limiting slot and the limiting portion, and the insertion of the connecting portion is more labor-saving.

[0054] In the twentieth aspect and the preferred embodiments thereof, the deformation portion is provided with a guide portion matched with the inclined surface of the limiting protrusion towards the slot bottom of the insertion slot, so that the deformation portion deforms away from the limiting protrusion. During the insertion of the deformation portion into the insertion slot, the deformation portion is not easy to interfere with the limiting protrusion, and the guide portion can also guide the deformation portion during the insertion of the deformation portion into the insertion slot. The insertion is more labor-saving, and after the insertion is completed, the deformation portion restores the deformation.

[0055] In the twenty-first aspect and the preferred embodiments thereof, the insertion fit between the limiting rib and the positioning slot is beneficial to realize the limiting of the connecting portion and the insertion slot in the length direction of the insertion slot and the limiting of the rotation of the connecting portion relative to the insulating member around the axis parallel to the thickness direction of the armature assembly, so as to further make the connection between the auxiliary movable contact and the insulating member more stable. The positioning slot is formed between the body and the deformation portion. Due to the deformation of the deformation portion during the insertion, the slot wall of the positioning slot is away from the limiting rib, so that the friction between the limiting rib and the positioning slot is reduced, and the insertion is more labor-saving. After the insertion is completed, the limiting rib is inserted and fitted with the positioning slot to limit the connecting portion.

[0056] In the twenty-second aspect and the preferred embodiments thereof, the limiting rib and the positioning slot are interference-fitted, which realizes the limiting fit between the connecting portion and the insertion slot along the extension direction of the insertion slot, and also realizes the rotation-stopping fit between the connecting portion and the insertion slot around the axis parallel to the X-axis direction. Therefore, after the insertion fit between the connecting portion and the insertion slot is completed, the auxiliary movable contact is fixed on the insulating member without the need for other fixing methods, and the connection structure is simple and convenient to assemble.

[0057] In technical solution twenty-three and the preferred embodiments thereof, the second deformation part can be stuck and cannot be reliably reset due to the interference fit between the limiting ribs and the positioning groove, and the first deformation part is farther away from the groove bottom of the insertion groove, so that the deformation can be reliably restored when the second deformation part is stuck, thereby ensuring that the limiting groove and the limiting protrusion are reliably inserted and fitted.

[0058] In technical solution twenty-four and the preferred embodiments thereof, the two auxiliary static contact parts are located in the area enclosed by the coil assembly and the two yokes, on the one hand, the space occupied by the coil assembly in the X-axis direction is fully utilized, the space utilization rate is improved, and the space occupied by the two auxiliary static contact parts in the X-axis direction is not increased; on the other hand, this also means that the distance between the two auxiliary static contact parts in the X-axis direction is short, so that the space occupied by the auxiliary moving contact part in the X-axis direction can be small, and further conditions are created for the auxiliary monitoring part to occupy a small space in the X-axis direction.

[0059] In technical solution twenty-five and the preferred embodiments thereof, the auxiliary moving contact part is fixedly connected to the side of the insulating part close to the coil assembly, and the contact part and the coil assembly are located on the two sides of the first plane in the X-axis direction, so that the contact part is away from the coil assembly and the auxiliary monitoring part in the X-axis direction, and the electrical distance between the weak current terminal of the coil assembly, the weak current terminal of the auxiliary monitoring part and the strong current terminal of the contact part is kept in a large range, which improves the electrical isolation problem and is beneficial to the isolation of the strong and weak current terminals.

[0060] In technical solution twenty-six and the preferred embodiments thereof, the connecting terminal, the signal terminal and the lead-out terminal all extend out of the same side of the accommodating part in the Y-axis direction, which is beneficial to the connection of the relay to the PCB board in the Y-axis direction.

[0061] In technical solution twenty-seven and the preferred embodiments thereof, the accommodating part is provided with a bottom wall for supporting the coil assembly; each auxiliary static contact part is further provided with a fixed part integrated with the auxiliary static contact part, the fixed part extends in the Y-axis direction and is provided with a lead-out terminal; and the fixed part is fixedly connected to the bottom wall of the accommodating part, on the one hand, the structure of the auxiliary static contact part is simple and easy to process, and on the other hand, the lead-out terminal is not easy to avoid the armature assembly or the coil assembly and does not need to be bent, thereby improving the service life of the auxiliary static contact part. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed in the embodiment description are briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0063] FIG. 1 is a perspective exploded view of a relay according to an embodiment of the present disclosure;

[0064] Figure 2 is a schematic view of a base of an embodiment of the present disclosure;

[0065] Figure 3 is a bottom view of the base of an embodiment of the present disclosure with two auxiliary stationary contacts installed;

[0066] Figure 4 is a top view of a cover of an embodiment of the present disclosure with the armature assembly in a first position;

[0067] Figure 5 is a top view of the cover of an embodiment of the present disclosure with the armature assembly in a second position;

[0068] Figure 6 is a schematic view of an armature assembly of an embodiment of the present disclosure;

[0069] Figure 7 is a top view of Figure 6;

[0070] Figure 8 is a cross-sectional view of Figure 7 along line A-A;

[0071] Figure 9 is a schematic view of an armature assembly and auxiliary monitoring portion of an embodiment of the present disclosure installed in a base;

[0072] Figure 10 is a schematic view of an auxiliary movable contact of an embodiment of the present disclosure;

[0073] Figure 11 is a perspective schematic view of an armature assembly and auxiliary monitoring portion of an embodiment of the present disclosure;

[0074] Figure 12 is a top view of Figure 11;

[0075] Figure 13 is a perspective cross-sectional view of Figure 12 along line B-B with two auxiliary stationary contacts hidden;

[0076] Explanation of main reference numerals: 10. housing; 11. base; 111. bottom wall; 1111. first insertion hole; 112. first side wall; 1121. first through slot; 1122. second through slot; 1123. third through slot; 113. partition wall; 1131. through opening; 114. first groove; 1141. first orientation groove; 1142. mating groove; 115. second groove; 1151. second orientation groove; 1152. third orientation groove; 1153. fourth orientation groove; 1154. fifth orientation groove; 116. support seat; 12. cover; 13. fixing frame; 131. second insertion hole; 100. magnetic circuit part; 20. coil assembly; 21. coil frame; 211. center hole; 212. baffle; 22. coil winding; 23. core; 24. yoke; 241. magnetic driving end; 242. first magnetic driving end; 243. second magnetic driving end; 01. signal terminal; 30. armature assembly; 31. armature; 32. first armature; 321. first attraction part; 33. second armature; 331. second attraction part; 34. insulating part; 341. insertion shaft; 342. first wall; 343. insertion slot; 344. limiting protrusion; 345. limiting rib; 35. driving part; 80. pushing piece; 200. contact part; 40. movable contact; 41. movable spring piece; 411. movable contact point; 42. movable spring lead-out piece; 421. avoiding slot; 50. stationary contact; 51. stationary contact point; 02. connection terminal; 300. auxiliary monitoring part; 60. auxiliary stationary contact; 61. auxiliary stationary contact part; 62. fixing part; 63. first auxiliary stationary contact part; 64. second auxiliary stationary contact part; 03. lead-out terminal; 70. auxiliary movable contact; 71. connection part; 711. deformation part; 7111. first deformation part; 7112. second deformation part; 7113. limiting slot; 7114. guide part; 712. body; 7121. bending part; 713. positioning slot; 72. auxiliary movable contact part; 721. contact branch. DETAILED DESCRIPTION

[0077] In the claims and specification, except where otherwise expressly indicated, the terms "X-axis direction", "Y-axis direction" and "Z-axis direction" only mean that a feature having one of the above directions is perpendicular to a feature having another direction, and do not require that it must be implemented according to the "X-axis direction", "Y-axis direction" and "Z-axis direction" introduced in the embodiments. In the embodiments, the X-axis direction is perpendicular to the Y-axis direction and also perpendicular to the Z-axis direction. Among them, the X-axis direction can be divided into left and right, the Y-axis direction can be divided into front and back, and the Z-axis direction can be divided into up and down.

[0078] In the claims and specification, unless otherwise defined, the terms "first", "second" or "third" and the like are used only to distinguish different objects, and are not used to describe a particular order.

[0079] In the claims and specification, unless otherwise stated, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicate directions or positions based on the directions and positions shown in the drawings and are used for convenience in simplifying the description only and are not intended in any way as indicating special orientations of the device or element being referred to, or as limiting the described device or element to any particular spatial or positional relationship.

[0080] In the claims and specification, unless otherwise stated, the terms "fixedly connected" or "fixed connection" should be interpreted broadly as any connection manner without displacement relationship and relative rotation relationship between the two, that is, it includes irremovable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0081] In the claims and specification, unless otherwise stated, the terms "including", "having" and their variants mean "including but not limited to".

[0082] In the claims and specification, unless otherwise stated, the term "provided with" means that the technical feature located after it is part of the technical feature located before it.

[0083] In the claims and specification, unless otherwise stated, the term "support" means that the gravity of an object will act on another object.

[0084] In the claims and specification, unless otherwise stated, the term "integration" means direct connection without other parts between the two.

[0085] In the claims and specification, unless otherwise stated, the term "extension direction" means the length direction of the object, including the part of the object bending or tilting in the length direction.

[0086] Referring to FIG. 1, FIG. 1 shows a structure of a relay, which includes a housing 10, a magnetic circuit portion 100, a contact portion 200, and an auxiliary monitoring portion 300.

[0087] The relay is used to receive an electric signal to control the on-off of an external circuit. Specifically, the relay in the present embodiment is a magnetic latching relay, which controls the on-off of an external circuit by receiving a pulse electric signal. In the present embodiment, the pulse electric signal can be divided into a first pulse electric signal and a second pulse electric signal. The first pulse electric signal and the second pulse electric signal are used to control the switching or on-off of the external circuit, respectively.

[0088] The accommodating member 10 comprises a base 11, an outer cover 12 and a fixing frame 13. The structure of the base 11 and the outer cover 12 in the embodiment is shown in FIG. 1, and the schematic diagram of the base 11 is shown in FIG. 2. The base 11 is a box-shaped structure with one end open. The length direction of the base 11 is the X-axis direction, the width direction is the Y-axis direction, and the height direction is the Z-axis direction. In the embodiment, the base 11 is open at one end along the Z-axis direction, and the outer cover 12 is arranged on the opening and fixedly connected with the base 11. In the embodiment, the opening is located at the upper end of the base 11. The base 11 is provided with a bottom wall 111 perpendicular to the Z-axis direction and a first side wall 112 perpendicular to the Y-axis direction. The first side wall 112 is provided with two first through grooves 1121 arranged along the X-axis direction, two second through grooves 1122 arranged along the X-axis direction and three third through grooves 1123 arranged along the X-axis direction. The base 11 is provided with a partition wall 113 extending along the Y-axis direction and perpendicular to the Z-axis direction. The partition wall 113 divides the base 11 along the X-axis direction into a first groove 114 and a second groove 115. The partition wall 113 is provided with a through opening 1131 close to the first side wall 112. The bottom wall 111 forms the groove bottom of the first groove 114 and the second groove 115. The width of the second groove 115 along the X-axis direction is greater than the width of the first groove 114 along the X-axis direction. The inner cavities of the first groove 114 and the second groove 115 are both cuboid structures. The first groove 114 is provided with a first directional groove 1141 at one end along the Y-axis direction and a cooperation groove 1142 at the other end along the Y-axis direction. The two first through grooves 1121 correspond to the first groove 114. The groove bottom of the second groove 115 is provided with a convex shaft close to the partition wall 113. The convex shaft forms a first insertion hole 1111 extending along the Z-axis direction. The second groove 115 is further provided with a first limiting part and a second limiting part. The first limiting part is formed by a second directional groove 1151 extending along the Z-axis direction and opening on the bottom wall 111 and a third directional groove 1152 extending along the Y-axis direction and opening downward. The second directional groove 1151 is in communication with the third directional groove 1152 along the Y-axis direction. The second limiting part is formed by a fourth directional groove 1153 extending along the Z-axis direction and opening on the bottom wall 111 and a fifth directional groove 1154 extending along the Y-axis direction and opening downward. The fourth directional groove 1153 and the fifth directional groove 1154 are in communication along the Y-axis direction. The second through grooves 1122 and the third through grooves 1123 correspond to the second groove 115. The second through grooves 1122 are close to the bottom end of the first side wall 112, and the third through grooves 1123 are located at the end of the first side wall 112 facing the opening. The two second through grooves 1122 correspond to the third directional groove 1152 and the fifth directional groove 1154 respectively. The base 11 is further provided with a support seat 116 in the second groove 115 close to the partition wall 113.

[0089] Still referring to Fig. 1, the outer cover 12 is a cuboid structure, which has a size similar to that of the base 11 but slightly larger than the size of the base 11, and is open at one end along the Y-axis direction. The outer cover 12 can be sleeved into the base 11 and sealedly connected with the base 11 to seal the opening of the base 11.

[0090] The fixing frame 13 is supported on the support seat 116 and is fixedly connected with the support seat 116. The fixing frame 13 is provided with a second insertion hole 131 coaxial with the first insertion hole 1111. After the outer cover 12 is fixedly connected with the base 11, the fixing frame 13 is also limited by the outer cover 12 in the Z-axis direction.

[0091] Referring to Figs. 4-5, Figs. 4-5 show schematic views of the magnetic circuit part 100 arranged in the accommodating member 10. The magnetic circuit part 100 (except for the signal terminal 01 described below) is substantially accommodated in the second groove 115. The magnetic circuit part 100 includes the coil assembly 20 and the armature assembly 30.

[0092] Referring to Figs. 4-5, the coil assembly 20 is arranged in the second groove 115 and supported on the bottom wall 111 of the second groove 115. Referring also to Fig. 1, the coil assembly 20 includes a coil frame 21, a coil winding 22, a core 23, and two yokes 24. The coil frame 21 is fixedly connected in the second groove 115. The coil frame 21 extends along the Y-axis direction and is provided with a central hole 211 extending along the Y-axis direction. The two ends of the coil frame 21 along the Y-axis direction are respectively provided with a barrier wall 212. The coil winding 22 is wound on the coil frame 21 and located between the two barrier walls 212. Therefore, the axis of the coil winding 22 also extends along the Y-axis direction. The coil winding 22 is connected to the signal terminal 01. The signal terminal 01 is fixedly connected to the barrier wall 212 of the coil frame 21 and penetrates the first side wall 112 along the Y-axis direction and extends out of the third penetration groove 1123 of the first side wall 112 (see Figs. 4 and 5). The core 23 extends along the Y-axis direction and is inserted into the central hole 211 of the coil frame 21. The two yokes 24 are respectively fixedly connected with the two ends of the core 23. The ends of the two yokes 24 away from the core 23 respectively form a magnetic driving end 241 in the form of a flat plate perpendicular to the X-axis direction. The two magnetic driving ends 241 are arranged along the Y-axis direction. The two magnetic driving ends 241 are respectively a first magnetic driving end 242 and a second magnetic driving end 243. When the signal terminal 01 receives a pulse electrical signal, the polarities of the first magnetic driving end 242 and the second magnetic driving end 243 are opposite. When the signal terminal 01 switches to receive a first pulse electrical signal and a second pulse electrical signal, the first magnetic driving end 242 and the second magnetic driving end 243 change between the S pole and the N pole, respectively.

[0093] Referring to FIG. 1 and FIG. 6-8, FIG. 6-8 show the structure of the armature assembly 30, the armature assembly 30 is arranged on one side of the coil assembly 20 along the X-axis direction, the armature assembly 30 rotates around the rotation axis extending along the Z-axis direction in response to the polarity change of the magnetic driving end 241, in the embodiment, the armature assembly 30 rotates between the first position and the second position. The rotation axis of the armature assembly 30 and the axis of the coil winding 22 are arranged along the X-axis direction.

[0094] As shown in FIG. 1 and FIG. 6-8, in the embodiment, the armature assembly 30 includes a permanent magnet (not shown in the figure), two armatures 31 and an insulating piece 34, the permanent magnet is formed by a magnetized magnetic steel, in other embodiments, the permanent magnet can also use other permanent magnet materials, such as neodymium iron boron permanent magnet. The permanent magnet has two magnetic poles with fixed polarity, the polarity of the two magnetic poles is opposite. The two armatures 31 are respectively fixed to the two magnetic poles of the permanent magnet, each armature 31 is respectively provided with two attracting parts suitable for attracting the magnetic driving end 241, in the magnetic holding state, the two armatures 31 respectively have one attracting part attracting the corresponding magnetic driving end 241 to form a closed magnetic circuit passing through the two magnetic driving ends 241. In the embodiment, the two armatures 31 are respectively a first armature 32 and a second armature 33, the two ends of the first armature 32 in the length direction are respectively provided with two first attracting parts 321; the two ends of the second armature 33 in the length direction are respectively provided with two second attracting parts 331. The length of the first armature 32 is longer than the length of the second armature 33.

[0095] The insulating piece 34 is fixed with the permanent magnet and the two armatures 31, for example, the insulating piece 34 can be an injection molded part, the insulating piece 34 wraps the two armatures 31 and the permanent magnet to form a whole, the two ends of the first armature 32 and the second armature 33 are both located outside the insulating piece 34. The two sides of the insulating piece 34 along the Z-axis direction close to the first armature 32 are respectively protruded and provided with the insertion shaft 341 extending along the Z-axis direction, the two insertion shafts 341 are coaxial and form the rotation axis of the armature assembly 30, in the example provided in the embodiment, the rotation axis is closer to the side where the first armature 32 is located along the thickness direction of the armature assembly 30; the rotation axis is centrally arranged along the length direction of the armature assembly 30, in other possible examples, the rotation axis can also be centrally arranged between the first armature 32 and the second armature 33 along the width direction of the armature assembly 30. The length direction of the armature assembly 30 is consistent with the length direction of the first armature 32 and the second armature 33, the thickness direction of the armature assembly 30 is consistent with the arrangement direction of the first armature 32 and the second armature 33, the width direction of the armature assembly 30 is consistent with the width direction of the first armature 32 and the second armature 33, that is, consistent with the extension direction of the rotation axis.

[0096] The first wall 342 of the insulating piece 34 is provided with a slot 343 which is open along the Z-axis direction. In this embodiment, referring to FIGS. 4-5, the slot 343 is located on the side of the insulating piece 34 close to the coil winding 22, the slot 343 extends along the length direction of the armature assembly 30 and penetrates both ends, and the slot 343 is centrally fixed to the first wall 342 of the insulating piece 34 in the thickness direction. One of the slot walls of the slot 343 is provided with a limiting protrusion 344 protruding therefrom, and the upper end of the limiting protrusion 344 is provided with an inclined surface inclined downward from top to bottom to the other slot wall. Referring to FIG. 8, the slot 343 is further provided with a limiting rib 345 extending along the Z-axis direction. In this embodiment, the number of limiting ribs 345 is two, and the two limiting ribs 345 are arranged at intervals along the length direction of the slot 343.

[0097] The side of the insulating piece 34 close to the first armature 32 is provided with a driving portion 35.

[0098] Referring to FIGS. 1, 4-5, the push card 80 extends along the X-axis direction, and both ends thereof are adapted to be connected with the driving portion 35 and the moving contact 40 described below. The push card 80 penetrates the through opening 1131 of the partition wall 113, and the push card 80 is adapted to be driven by the driving portion 35 to move along the X-axis direction.

[0099] Still referring to FIGS. 1 and 4-5, the contact portion 200 is accommodated in the first slot 114 except for the connection terminal 02 described below, and the contact portion 200 includes the moving contact 40 and the stationary contact 50. The moving contact 40 includes a moving spring piece 41 and a moving spring lead-out piece 42. The moving spring piece 41 is fixed at one end thereof along the length direction to the first orientation slot 1141, and the other end thereof is adapted to swing and is provided with a moving contact point 411. The moving spring lead-out piece 42 is fixed to the moving spring piece 41 and penetrates one of the first through slots 1121 to form one of the connection terminals 02. In this embodiment, the moving spring lead-out piece 42 is fixed to the fixed end of the moving spring piece 41 and is inserted into the first orientation slot 1141, and the moving spring lead-out piece 42 is provided with an avoiding slot 421 which penetrates along the X-axis direction and is open upward, and the avoiding slot 421 is adapted to be penetrated by the push card 80. The stationary contact 50 extends along the Y-axis direction and is fixed in the fitting slot 1142. The stationary contact 50 is provided with a stationary contact point 51 and the other connection terminal 02 which penetrates the other first through slot 1121. The swinging end of the moving spring piece 41 is connected with the push card 80 to be adapted to be driven by the armature assembly 30 to make the moving contact point 411 and the stationary contact point 51 close or disconnect along the X-axis direction.

[0100] Referring to Figs. 4-5, the auxiliary monitoring part 300 is used for monitoring the working state of the armature assembly 30 and is substantially accommodated in the second slot 115 except the lead-out terminal 03, and the auxiliary monitoring part 300 comprises two auxiliary static contacts 60 and an auxiliary dynamic contact 70; the auxiliary dynamic contact 70 rotates with the armature assembly 30 to connect or disconnect the two auxiliary static contacts 60.

[0101] Referring to Fig. 9, Fig. 9 shows a schematic view of the armature assembly 30 and the auxiliary monitoring part 300 installed in the base 11, and referring to Fig. 11, Fig. 11 shows a schematic view of the armature assembly 30 and the auxiliary monitoring part 300, the auxiliary static contact 60 is substantially L-shaped, each auxiliary static contact 60 is provided with an auxiliary static contact portion 61 adapted to be abutted by the auxiliary dynamic contact 70 along the X-axis direction and a fixed portion 62 integrated with the auxiliary static contact portion 61, the fixed portion 62 extends along the Y-axis direction and is provided with the lead-out terminal 03; the fixed portion 62 is fixedly connected to the bottom wall 111 of the accommodating part 10, specifically, the fixed portions 62 of the two auxiliary static contacts 60 are respectively matched with the first limiting portion and the second limiting portion and respectively pass through the two second through slots 1122 to form the lead-out terminal 03.

[0102] Referring to Figs. 4-5, the two auxiliary static contact portions 61 are respectively located on the two sides of the rotation axis along the Y-axis direction and close to the armature assembly 30. In the embodiment, the two auxiliary static contact portions 61 are located in the region surrounded by the coil winding 22 and the two yokes 24, and the two auxiliary static contact portions 61 are staggered along the X-axis direction in the projection on the vertical direction of the Y-axis. The two auxiliary static contact portions 61 are respectively a first auxiliary static contact portion 63 and a second auxiliary static contact portion 64, the first auxiliary static contact portion 63 is located on one side of the second armature 33 along the Y-axis direction and the projection of the first auxiliary static contact portion 63 on the projection plane perpendicular to the X-axis direction does not coincide with the projection of the second armature 33, the second auxiliary static contact portion 64 is located on the side of the second armature 33 away from the first armature 32 and the projection of the second auxiliary static contact portion 64 on the projection plane perpendicular to the X-axis direction coincides with the projection of the second armature 33; the distances between the first auxiliary static contact portion 63 and the second auxiliary static contact portion 64 and the first plane are not equal, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

[0103] Referring to FIG. 10, which shows a schematic view of the auxiliary movable contact 70, the auxiliary movable contact 70 is in a sheet structure, and referring to FIGS. 11-13, which show schematic views of the cooperation between the auxiliary movable contact 70 and the armature assembly 30, the thickness direction of the auxiliary movable contact 70 is consistent with the thickness direction of the armature assembly 30, the auxiliary movable contact 70 is fixed to the insulating member 34 at a side close to the coil winding 22, that is, the auxiliary movable contact 70 is fixed to the insulating member 34 at a side close to the second armature 33; the auxiliary movable contact 70 is provided with a connecting portion 71 fixed to the first wall 342 of the insulating member 34, the connecting portion 71 is in limiting cooperation with the insertion slot 343 and a structure preventing the connecting portion 71 from being separated from the insertion slot 343 in the Z-axis direction is formed between the connecting portion 71 and the insertion slot 343, here, the limiting cooperation means that the connecting portion 71 is limited in the extension direction and the width direction of the insertion slot 343 and is prevented from rotating around an axis parallel to the X-axis direction after the connecting portion 71 is inserted into the insertion slot 343, and the structure preventing the connecting portion 71 from being separated from the insertion slot 343 in the Z-axis direction means a structure preventing the connecting portion 71 from being separated from the insertion slot 343 in the Z-axis direction. The two ends of the auxiliary movable contact 70 respectively extend out of the insertion slot 343 to form auxiliary movable contact portions 72 adapted to abut against the auxiliary stationary contact portions 61, that is, the auxiliary movable contact 70 is provided with the auxiliary movable contact portions 72 extending at two sides of the position where the auxiliary movable contact 70 is fixed to the armature assembly 30; the two auxiliary movable contact portions 72 are adapted to abut against the two auxiliary stationary contact portions 61, and the extension directions of the two auxiliary movable contact portions 72 are parallel to the length direction of the armature assembly 30 or form a preset included angle with the length direction of the armature assembly 30, referring to FIG. 12, in the embodiment, the extension directions of the two auxiliary movable contact portions 72 are both inclined relative to the length direction of the armature assembly 30, and along the direction from the first auxiliary stationary contact portion 63 to the second auxiliary stationary contact portion 64, the two auxiliary movable contact portions 72 gradually incline toward the side where the first armature 32 is located, and the included angle a between the extension directions of the two auxiliary movable contact portions 72 and the length direction of the armature assembly 30 is less than 20°, and in FIG. 12, the included angle a is 3°. Each auxiliary movable contact portion 72 is provided with at least two contact branches 721 spaced apart in the Z-axis direction, and each contact branch 721 is adapted to abut against or separate from the corresponding auxiliary stationary contact portion 61. Each contact branch 721 is adapted to deform in the X-axis direction. Therefore, the auxiliary movable contact 70 is fixed to the insulating member 34 and the fixed position is located between the two auxiliary stationary contact portions 61 in the Y-axis direction.

[0104] Referring to FIG. 10, the connecting portion 71 is provided with a body 712 integrated with a deformation portion 711, and the deformation portion 711 is composed of a first deformation portion 7111 and a second deformation portion 7112 integrated together, wherein the second deformation portion 7112 is closer to the groove bottom of the insertion slot 343 than the first deformation portion 7111, and the first deformation portion 7111 is provided with a limiting groove 7113 forming an anti-disengagement structure with the limiting protrusion 344, and the second deformation portion 7112 is provided with a guide portion 7114 facing the groove bottom of the insertion slot 343 and matching the inclined surface of the limiting protrusion 344 to deform the deformation portion 711 away from the limiting protrusion 344. It should be understood that in other embodiments, the limiting protrusion 344 can also be formed on the connecting portion 71, and the limiting groove 7113 can also be formed on the groove wall of the insertion slot 343, as long as the connecting portion 71 can be prevented from disengaging from the insertion slot 343 along the Z-axis direction. The body 712 is provided with a bending portion 7121, referring to FIG. 12, the bending portion 7121 is limitedly matched with the insertion slot 343 along the width direction of the insertion slot 343, and the number of the bending portion 7121 is two, and the two bending portions 7121 are respectively close to the two ends of the insertion slot 343 in the length direction. Referring to FIG. 13, the connecting portion 71 is also provided with a positioning groove 713 matched with the limiting rib 345; the positioning groove 713 is formed between the body 712 and the second deformation portion 7112. In this embodiment, the limiting rib 345 is interference-fitted with the positioning groove 713.

[0105] The assembly process of the relay of the present embodiment is as follows:

[0106] The two auxiliary static contacts 60 are connected with the first limiting portion and the second limiting portion respectively, specifically, the fixed portion 62 of one of the auxiliary static contacts 60 is inserted from the outer surface of the bottom wall 111 of the base 11 into the third directional slot 1152 and penetrates through the third through slot 1123 to form one of the lead-out terminals 03, and the auxiliary static contact portion 61 of the auxiliary static contact 60 is inserted into the second directional slot 1151 and is limitedly matched with the second directional slot 1151 along the X-axis direction and the Y-axis direction, the fixed portion 62 of the other auxiliary static contact 60 is inserted from the outer surface of the bottom wall 111 of the base 11 into the fifth directional slot 1154 and penetrates through the third through slot 1123 to form the other lead-out terminal 03, and the auxiliary static contact portion 61 of the auxiliary static contact 60 is inserted into the fourth directional slot 1153 and is limitedly matched with the fourth directional slot 1153 along the X-axis direction and the Y-axis direction, if necessary, the two first auxiliary static contacts 60 can be fixedly bonded on the base 11 by an adhesive;

[0107] The static contact 50 is inserted into the fitting groove 1142 from the opening of the base 11 and penetrates through one of the first through slots 1121 of the first side wall 112 to form one of the connecting terminals 02; the dynamic contact 40 is inserted into the first directional slot 1141 away from the one end of the pushing piece 80, and the dynamic spring lead-out piece 42 of the dynamic contact 40 penetrates through the other first through slot 1121 of the first side wall 112 to form the other connecting terminal 02;

[0108] After the push card 80 is connected with the driving part 35, the avoiding groove 421 penetrating the dynamic spring lead-out sheet 42 is connected with the swing end of the dynamic spring sheet 41, then the push card 80 and the armature assembly 30 are placed into the base 11 together, wherein the push card 80 penetrates the through hole 1131 of the partition wall 113, and the plug shaft 341 of the armature assembly 30 is inserted into the first insertion hole 1111;

[0109] The connecting part 71 of the auxiliary dynamic contact piece 70 is inserted into the insertion slot 343, when the insertion is performed, the guide part 7114 of the deformation part 711 cooperates with the inclined surface of the limiting protrusion 344 and makes the deformation part 711 deform away from the limiting protrusion 344 until the limiting protrusion 344 is inserted into the limiting groove 7113, the positioning groove 713 of the connecting part 71 is inserted and cooperates with the limiting rib 345, the bending part 7121 of the connecting part 71 abuts against the two groove walls of the insertion slot 343, and the two auxiliary dynamic contact parts 72 of the auxiliary dynamic contact piece 70 are located at the two sides of the connecting part 71 respectively;

[0110] The coil assembly 20 is placed into the second groove 115 and makes the signal terminal 01 of the coil assembly 20 penetrate the second through groove 1122; the installation sequence of the above coil assembly 20, armature assembly 30 and auxiliary static contact piece 60 can be adjusted according to needs.

[0111] Then the base 11 is sleeved into the outer cover 12 along the Y-axis direction and is fixedly connected with the outer cover 12. It should be understood that the installation sequence of each part can be adjusted according to needs in actual operation process, which is not limited in the embodiment.

[0112] After the installation is completed, the two auxiliary static contact parts 61 are respectively located at the two sides of the auxiliary dynamic contact piece 70 along the X-axis direction; the connecting part 71 is fixedly connected to the first wall 342 along the length direction of the armature assembly 30; the contact part 200 and the coil winding 22 are respectively located at the two sides of the second plane along the X-axis direction, the second plane is perpendicular to the X-axis direction and passes through the rotation axis, and the connecting terminal 02, the signal terminal 01 and the lead-out terminal 03 all extend out of the first side wall 112 of the containing part 10 along the Y-axis direction.

[0113] The working process of the embodiment is as follows:

[0114] When the signal terminal 01 receives the first pulse signal, the coil assembly 20 drives the armature assembly 30 to rotate from the second position to the first position, and one of the first attraction parts 321 attracts the first magnetic driving end 242 and one of the second attraction parts 331 attracts the second magnetic driving end 243, the push card 80 drives the dynamic contact point 411 to close with the static contact point 51, the two auxiliary dynamic contact parts 72 respectively abut against the first auxiliary static contact part 63 and the second auxiliary static contact part 64, and the auxiliary monitoring part 300 is closed;

[0115] When the signal terminal 01 receives the second pulse signal, the polarity of the two yokes 24 in the coil assembly 20 changes, and drives the armature assembly 30 to rotate from the first position to the second position, see Figure 5, another second attraction part 331 attracts the first magnetic drive end 242, another first attraction part 321 attracts the second magnetic drive end 243, pushes the card 80 to drive the moving contact 411 to disconnect with the static contact 51, the two auxiliary moving contact parts 72 are away from the first auxiliary static contact part 63 and the second auxiliary static contact part 64 respectively, and the auxiliary monitoring part 300 is disconnected.

[0116] In the embodiment, the armature assembly 30 is arranged on one side of the coil assembly 20 along the X-axis direction and rotates around the rotation axis extending along the Z-axis direction, the armature assembly 30 extends along the Y-axis direction, and the space on both sides of the armature assembly 30 along the X-axis direction is limited; the auxiliary moving contact 70 rotates with the armature assembly 30 to connect or disconnect the two auxiliary stationary contacts 60, each auxiliary stationary contact 60 is provided with an auxiliary stationary contact portion 61 adapted to be abutted by the auxiliary moving contact 70 along the X-axis direction, and the two auxiliary stationary contact portions 61 are respectively located on both sides of the rotation axis along the Y-axis direction and close to the armature assembly 30, therefore, the auxiliary moving contact 70 and the two auxiliary stationary contact portions 61 form a bridging structure extending along the Y-axis direction, among which, as long as the auxiliary moving contact 70 has a certain length along the Y-axis direction and can follow the movement of the armature assembly 30, the connection or disconnection with the two auxiliary stationary contact portions 61 can be realized, therefore the length of the auxiliary moving contact 70 in the X-axis direction and the Z-axis direction can be set smaller, and since the two auxiliary stationary contact portions 61 are also arranged along the Y-axis direction, the entire auxiliary monitoring portion 300 only needs to occupy a larger space in the Y-axis direction, and can realize occupying a smaller space in the X-axis direction, when the space on both sides of the armature assembly 30 is narrow, the auxiliary moving contact 70 can be set as a sheet structure to make the auxiliary moving contact 70 occupy the smallest space in the X-axis direction, and since the two auxiliary stationary contact portions 61 are close to the armature assembly 30, the distance between the two auxiliary stationary contact portions 61 along the X-axis direction and the Y-axis direction cannot be too large, thereby further making the auxiliary monitoring portion 300 occupy a space close to the space occupied by the armature assembly 30 in the Y-axis direction, and occupying a smaller space in the X-axis direction, so that the entire auxiliary monitoring portion 300 can occupy a smaller size on both sides of the armature assembly 30, the maximum size of the auxiliary monitoring portion 300 in the X-axis direction is only the distance between the auxiliary moving contact 70 and the auxiliary stationary contact 60 when they are disconnected, the space occupation is small, therefore, as long as the auxiliary monitoring portion 300 can avoid the coil assembly 20 or the contact portion 200 / the push card 80, the auxiliary monitoring portion 300 can be conveniently installed in the limited space on both sides of the armature assembly 30, without the need to excessively increase the volume of the housing 10 in the X-axis direction or even without the need to increase the volume of the housing 10 in the X-axis direction; in addition, compared with the microswitch standard part, the auxiliary monitoring portion 300 in the technical solution occupies a smaller space, and the position of the terminal of the auxiliary monitoring portion 300 can be adjusted as needed, and the structure design is simpler.

[0117] In the embodiment, the auxiliary moving contact 70 is fixed to the armature assembly 30 and the fixed position is between the two auxiliary static contact portions 61 along the Y-axis direction; the two auxiliary static contact portions 61 are respectively located on the two sides of the auxiliary moving contact 70 along the X-axis direction, so that the contact pressure of the auxiliary moving contact 70 and the two auxiliary static contact portions 61 can be more balanced when the auxiliary moving contact 70 is connected in series with the two auxiliary static contact portions 61, thereby enabling the auxiliary moving contact 70 to simultaneously contact or disconnect the two auxiliary static contact portions 61. The two auxiliary static contact portions 61 are respectively located on the two sides of the auxiliary moving contact 70 along the X-axis direction, and also make the projections of the two auxiliary static contact portions 61 on the plane perpendicular to the Y-axis direction staggered along the X-axis direction, compared to the projections of the two auxiliary static contact portions 61 on the projection plane perpendicular to the Y-axis direction overlapping each other, the processing of the auxiliary moving contact 70 is simpler, and after such arrangement, the two surfaces of the auxiliary moving contact 70 facing away from each other respectively contact the two auxiliary static contact portions 61, compared to the surfaces on the same side of the auxiliary moving contact 70 contacting the two auxiliary static contact portions 61, the space in the thickness direction of the auxiliary moving contact 70 is better utilized, thereby facilitating the reduction of the occupied space of the auxiliary monitoring portion 300 in the X-axis direction.

[0118] In the embodiment, the two auxiliary moving contact portions 72 are adapted to respectively contact the two auxiliary static contact portions 61, and the extension directions thereof are parallel to or form a preset angle with the length direction of the armature assembly 30, therefore, the auxiliary moving contact 70 occupies less space in the thickness direction of the armature assembly 30, thereby facilitating the reduction of the occupied space of the auxiliary monitoring portion 300 in the X-axis direction; in addition, such arrangement is also conducive to making the auxiliary moving contact 70 into a relatively flat structure in the X-axis direction, thereby facilitating the reduction of the occupied space of the auxiliary monitoring portion 300 in the X-axis direction. It should be understood that, in order to reduce the space occupied by the auxiliary monitoring portion 300 in the X-axis direction, the distance between the two auxiliary static contact portions 61 in the auxiliary monitoring portion 300 along the X-axis direction should be as small as possible, and therefore, if the extension directions of the two auxiliary moving contact portions 72 are parallel to the length direction of the armature assembly 30, the contact gap between the auxiliary moving contact 70 and the two auxiliary static contact portions 61 can be too small, which can cause the auxiliary moving contact 70 to be deformed too much and bear too much stress when the armature 31 rotates to contact the two auxiliary static contact portions 61, and fatigue damage or plastic deformation can easily occur, affecting the service life, and therefore, the extension directions of the two auxiliary moving contact portions 72 are arranged to form a preset angle with the length direction of the armature assembly 30, so that the auxiliary moving contact 70 has a larger distance from the corresponding two auxiliary static contact portions 61 along the X-axis direction in the disconnected state, thereby ensuring that the two auxiliary static contact portions 61 are not spaced too far apart along the X-axis direction, and also enabling the auxiliary moving contact 70 to have a longer service life.

[0119] In the embodiment, the auxiliary movable contact 70 is fixed to the first wall 342 in the thickness direction of the armature assembly 30, so that the auxiliary movable contact 70 occupies no more space in the Z-axis direction than the armature assembly 30, thereby avoiding the auxiliary monitoring portion 300 from increasing the height of the relay in the Z-axis direction.

[0120] In the embodiment, the connecting portion 71 is fixed to the first side wall 112 in the length direction of the armature assembly 30, which further reduces the space occupied by the auxiliary movable contact 70 in the Y-axis direction.

[0121] In the embodiment, the auxiliary movable contact 70 has a sheet structure, and its thickness direction is consistent with the thickness direction of the armature assembly 30, which further reduces the space occupied by the auxiliary movable contact 70 in the X-axis direction.

[0122] In the embodiment, the auxiliary static contact portion 61 extends in the Z-axis direction, and each auxiliary movable contact portion 72 is provided with at least two contact branches 721 spaced apart in the Z-axis direction. Each contact branch 721 is adapted to abut or separate from the corresponding auxiliary static contact 60, so that when the auxiliary movable contact 70 abuts the auxiliary static contact portion 61, the current flowing through the auxiliary movable contact 70 is shunted into multiple paths, thereby reducing the resistance of the movable contact 40 and improving the overall current carrying capacity. Such arrangement also facilitates the deformation of the auxiliary movable contact portion 72 and reduces the probability of the auxiliary movable contact portion 72 failing to contact the auxiliary static contact portion 61 due to deformation or vibration, thereby improving the contact reliability.

[0123] In the embodiment, each contact branch 721 is adapted to deform in the X-axis direction. The armature assembly 30 transmits a larger force in the X-axis direction to the auxiliary movable contact portion 72, which can provide a certain contact pressure to the auxiliary movable contact portion 72 and the auxiliary contact portion. In other words, by designing the position of the auxiliary static contact 60, when the armature assembly 30 is rotated to the right position, the abutment of the auxiliary movable contact portion 72 against the auxiliary contact portion causes the auxiliary movable contact 70 to deform appropriately, thereby facilitating a more stable contact relationship after conduction and higher contact reliability.

[0124] In the embodiment, in the magnetic holding state, the two armatures 31 each have one attracted portion attracting the corresponding magnetic driving end 241 to form a closed magnetic loop passing through the two magnetic driving ends 241, the closed magnetic loop passing from one magnetic pole of the permanent magnet, through one attracted portion, one magnetic driving end 241, the iron core 23, the other magnetic driving end 241, and the other attracted portion, back to the other magnetic pole of the permanent magnet, compared with the closed magnetic loop passing through only one magnetic driving end 241, the closed magnetic loop of the technical solution has greater magnetic attraction and is more stable; the permanent magnet can also keep the attracted portion and the magnetic driving end 241 attracted when the coil assembly 20 is powered off; the auxiliary moving contact 70 is fixedly connected with the insulating part 34, which is conducive to processing and avoids the influence of the magnetic action of the auxiliary monitoring part 300 on the armature 31 when passing through. The rotation axis is centrally arranged along the length direction of the armature assembly 30, so that the force arms of the two attracted portions of each armature 31 are consistent, and the on reliability is more improved.

[0125] In the embodiment, the first auxiliary static contact portion 63 is located on one side of the second armature 33 along the Y-axis direction, and the projection of the first auxiliary static contact portion 63 on the projection plane perpendicular to the X direction does not coincide with the projection of the second armature 33; the second auxiliary static contact portion 64 is located on the side of the second armature 33 away from the first armature 32, and the projection of the second auxiliary static contact portion 64 on the projection plane perpendicular to the X direction coincides with the projection of the second armature 33. On the one hand, it is conducive to reducing the distance between the two auxiliary static contact portions 61 in the Y-axis direction, and on the other hand, it is conducive to realizing that the distances between the two auxiliary static contact portions 61 and the first plane are not equal. Compared with the scheme that the distances between the two auxiliary static contact portions 61 and the first plane are consistent, when the rotation angle of the auxiliary moving contact 70 is certain, the shorter the distance between the second auxiliary static contact portion 64 located on the side of the second armature 33 away from the first armature 32 and the first plane, the smaller the occupied space of the auxiliary monitoring part 300 in the X-axis direction, and thus the above setting further reduces the occupied space of the auxiliary monitoring part 300 in the X-axis direction.

[0126] In the embodiment, the extension directions of the two auxiliary moving contact portions 72 are both inclined relative to the length direction of the armature assembly 30, and along the direction from the first auxiliary static contact portion 63 to the second static contact portion in the Y-axis direction, the two auxiliary moving contact portions 72 gradually approach the side on which the first armature 32 is located, which is inclined, and is conducive to forming a larger gap between the auxiliary moving contact 70 and the first auxiliary static contact portion 63 and the second auxiliary static contact portion 64 when they are disconnected. As described above, the line connecting the two auxiliary moving contact portions 72 and the length direction of the armature assembly 30 are arranged at a preset included angle, so that in the disconnected state, the auxiliary moving contact 70 has a larger spacing in the X-axis direction compared with the corresponding two auxiliary static contact portions 61, so as to ensure that the two auxiliary static contact portions 61 are not spaced far apart in the X-axis direction, and at the same time, the auxiliary moving contact 70 has a longer service life.

[0127] In the embodiment, the included angle between the connection line of the two auxiliary movable contact parts 72 and the length direction of the armature assembly 30 is less than 20°. In the case of ensuring the disconnection gap of the auxiliary movable contact part 72 and the auxiliary static contact part 61, the occupied space of the auxiliary movable contact part 70 in the X-axis direction is further reduced, and the distance between the two auxiliary static contact parts 61 in the X-axis direction is also smaller, thereby reducing the occupied space of the auxiliary monitoring part 300 in the X-axis direction.

[0128] In the embodiment, the rotation axis is closer to the side where the first armature 32 is located in the thickness direction of the armature assembly 30, and the length of the first armature 32 is greater than the length of the second armature 33. On the one hand, it is more conducive to offsetting the defect that the rotation ranges of the first armature 32 and the second armature 33 are inconsistent due to the eccentric arrangement of the rotation axis in the thickness direction of the armature assembly 30, thereby ensuring the consistency of the abutment and magnetic flux area of the first armature 32 and the second armature 33 with the magnetic driving end 241. On the other hand, the auxiliary movable contact part 70 is fixed to the side of the insulating part 34 close to the second armature 33, so that the distance between the two auxiliary static contact parts 61 in the Y-axis direction does not have to be too large to avoid the armature assembly 30, thereby reducing the occupied space of the auxiliary monitoring part 300 in the Y-axis direction. The first auxiliary static contact part 63 is located on the side of the second armature 33 in the Y-axis direction, and also makes full use of the space on the side of the second armature 33 in the Y-axis direction due to the shorter length of the second armature 33 than the first armature 32.

[0129] In the embodiment, the insulating part 34 is provided with a slot 343 opening in the Z-axis direction on the side in the X-axis direction. The connecting part 71 is limited in position with the slot 343 and a structure is formed between them to prevent disengagement. Compared with other fixing methods such as glue dispensing, welding or screwing, the production process is reduced and the production efficiency is higher. Compared with only the clamping method, the limiting position of the slot 343 and the connecting part 71 is more stable. The structure formed between the connecting part 71 and the slot 343 to prevent disengagement further improves the stability of the structure after the auxiliary movable contact part 70 is connected to the insulating part 34.

[0130] In the embodiment, the slot 343 extends in the length direction of the armature assembly 30 and penetrates at both ends. The two ends of the auxiliary movable contact part 70 respectively protrude out of the slot 343 to form auxiliary movable contact parts 72 suitable for abutting the auxiliary static contact parts 61. Compared with the scheme that the two ends of the auxiliary movable contact part 70 do not directly penetrate the slot 343, the auxiliary monitoring part 300 occupies less space in the X-axis direction.

[0131] In the embodiment, the setting of the bending part 7121 not only realizes the limiting position of the slot 343 in the width direction of the slot 343 with a simple structure, but also is conducive to realizing the deformation of the auxiliary movable contact part 70, making the on-off of the auxiliary monitoring part 300 more reliable, and also conducive to making the structure stability of the part of the connecting part 71 except the bending part 7121 better and ensuring the connection stability with the insulating part 34.

[0132] In the embodiment, the two bending portions 7121 are respectively close to two ends of the slot 343 in the length direction. On the one hand, the connecting portion 71 and the slot 343 form a limiting fit in the width direction of the slot 343, which improves the stability of the auxiliary movable contact 70 on the armature assembly 30. On the other hand, the two bending portions 7121 can be used as two deformation fulcrums of the two auxiliary movable contact portions 72, so that the on-off of the auxiliary monitoring part 300 is more reliable, and the structure stability of the part of the connecting portion 71 except the bending portions 7121 is better, and the connection stability with the insulating part 34 is ensured.

[0133] In the embodiment, the anti-disengagement structure includes a limiting groove 7113 and a limiting protrusion 344 matched with the limiting groove 7113. One of the limiting protrusion 344 and the limiting groove 7113 is arranged on the slot wall of the slot 343, and the other is arranged on the connecting portion 71. The structure is simple and easy to process, and the resistance is small when inserted.

[0134] In the embodiment, the connecting portion 71 is provided with a deformation portion 711, and the limiting groove 7113 is arranged on the deformation portion 711. When the connecting portion 71 is inserted into the slot 343, the deformation portion 711 deforms to make the limiting groove 7113 form a limiting fit with the limiting portion, and the insertion of the connecting portion 71 is more labor-saving.

[0135] In the embodiment, the deformation portion 711 is provided with a guide portion 7114 matched with the inclined surface of the limiting protrusion 344 towards the slot bottom of the slot 343, so that the deformation portion 711 deforms away from the limiting protrusion 344. The deformation portion 711 deforms during the insertion into the slot 343, and is not easy to interfere with the limiting protrusion 344. The guide portion 7114 also plays a guiding role on the deformation portion 711 during the insertion of the deformation portion 711 into the slot 343, and the insertion is more labor-saving. After the insertion is completed, the deformation portion 711 restores the deformation.

[0136] In the embodiment, the insertion fit of the limiting rib 345 and the positioning groove 713 is beneficial to realize the limiting of the connecting portion 71 and the slot 343 in the length direction of the slot 343 and the limiting of the rotation of the connecting portion 71 around the axis parallel to the thickness direction of the armature assembly 30 relative to the insulating part 34, so as to further make the connection of the auxiliary movable contact 70 and the insulating part 34 more stable. The positioning groove 713 is formed between the body 712 and the deformation portion 711. Due to the deformation of the deformation portion 711 during the insertion, the slot wall of the positioning groove 713 is away from the limiting rib 345, so that the friction between the limiting rib 345 and the positioning groove 713 is reduced, and the insertion is more labor-saving. After the insertion is completed, the limiting rib 345 is inserted and matched with the positioning groove 713 to limit the connecting portion 71.

[0137] In the embodiment, the limiting rib 345 is in interference fit with the positioning groove 713, which not only realizes the limiting fit of the connecting part 71 and the insertion groove 343 along the extension direction of the insertion groove 343, but also realizes the rotation-stopping fit of the connecting part 71 and the insertion groove 343 around the axis parallel to the X-axis direction. Thus, after the connecting part 71 and the insertion groove 343 are inserted in place, the auxiliary moving contact 70 is fixed to the insulating part 34 without the need for other fixing methods, and the connection structure is simple and convenient to assemble.

[0138] In the embodiment, since the limiting rib 345 is in interference fit with the positioning groove 713, the second deformation part 7112 may be stuck and unable to reset reliably, and the first deformation part 7111 being farther away from the groove bottom of the insertion groove 343 can make the second deformation part 7112 still reliably restore the deformation when stuck, thereby ensuring that the limiting groove 7113 and the limiting protrusion 344 are reliably inserted and fitted.

[0139] In the embodiment, the two auxiliary static contact parts 61 are located in the area enclosed by the coil winding 22 and the two yokes 24. On the one hand, the space occupied by the coil assembly 20 in the X-axis direction is fully utilized, the space utilization rate is improved, and the two auxiliary static contact parts 61 do not increase the space in the X-axis direction. On the other hand, this also means that the distance between the two auxiliary static contact parts 61 in the X-axis direction is short, so that the auxiliary moving contact 70 occupies a smaller space in the X-axis direction, further creating conditions for the auxiliary monitoring part 300 to occupy a smaller space in the X-axis direction.

[0140] In the embodiment, the auxiliary moving contact 70 is fixed to the insulating part 34 near the coil winding 22, and the contact part 200 and the coil winding 22 are located on the two sides of the first plane in the X-axis direction, so that the contact part 200, the coil winding 22 and the auxiliary monitoring part 300 are away from each other in the X-axis direction, and the electrical distance between the weak current terminal of the coil assembly 20, the weak current terminal of the auxiliary monitoring part 300 and the strong current terminal of the contact part 200 is kept in a larger range, which improves the electrical isolation problem and is conducive to realizing the isolation of the strong and weak current terminals.

[0141] In the embodiment, the connecting terminal 02, the signal terminal 01 and the lead-out terminal 03 all extend out of the same side of the containing part 10 along the Y-axis direction, which is conducive to connecting the relay to the PCB board in the Y-axis direction.

[0142] In the embodiment, the accommodating member 10 is provided with a bottom wall 111 supporting the coil assembly 20; each auxiliary static contact 60 is further provided with a fixing portion 62 integrated with the auxiliary static contact portion 61, the fixing portion 62 extends along the Y-axis direction and is provided with the lead-out terminal 03; the fixing portion 62 is fixedly connected to the bottom wall 111 of the accommodating member 10, on the one hand, the structure of the auxiliary static contact 60 is simple and easy to process, on the other hand, the lead-out terminal 03 is not easy to avoid the armature assembly 30 or the coil assembly 20 without bending, and the service life of the auxiliary static contact 60 is improved.

[0143] The above description and embodiment are used to explain the protection scope of the present disclosure, but do not constitute limitation to the protection scope of the present disclosure. Through the inspiration of the present disclosure or the above embodiment, the modification, equivalent replacement or other improvement of the present disclosure embodiment or one part of the technical features can be obtained by the ordinary skill in the art combining with the common knowledge, the ordinary skill in the art and / or the prior art through the logical analysis, reasoning or limited test, and should be included in the protection scope of the present disclosure.

Claims

1. A relay comprising a magnetic circuit portion (100) and an auxiliary monitoring portion (300), the magnetic circuit portion (100) comprising a coil assembly (20) and an armature assembly (30) disposed along an X-axis direction on one side of the coil assembly (20), the coil assembly (20) being provided with a magnetic driving end (241), the armature assembly (30) being rotated about a rotation axis extending along a Z-axis direction in response to a polarity change of the magnetic driving end (241); characterized in that, The auxiliary monitoring part (300) comprises two auxiliary static contacts (60) and an auxiliary moving contact (70); the auxiliary moving contact (70) rotates with the armature assembly (30) to connect or disconnect the two auxiliary static contacts (60); each auxiliary static contact (60) is provided with an auxiliary static contact portion (61) adapted to be contacted by the auxiliary moving contact (70) along the X-axis direction; the two auxiliary static contact portions (61) are respectively located on the two sides of the rotation axis along the Y-axis direction and close to the armature assembly (30); the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other.

2. The relay of claim 1, wherein The auxiliary moving contact (70) is fixed to the armature assembly (30) and the fixed position is located between the two auxiliary static contact portions (61) along the Y-axis direction; the two auxiliary static contact portions (61) are respectively located on the two sides of the auxiliary moving contact (70) along the X-axis direction.

3. The relay of claim 2, wherein the relay is configured to: The two sides of the position where the auxiliary moving contact (70) is fixed to the armature assembly (30) respectively extend auxiliary moving contact portions (72); the two auxiliary moving contact portions (72) are adapted to contact the two auxiliary static contact portions (61) respectively; the extension direction of the auxiliary moving contact portion (72) is parallel to the length direction of the armature assembly (30) or forms a preset angle.

4. The relay of claim 3 wherein, The auxiliary moving contact (70) is further provided with a connecting portion (71) fixed to the first wall (342) in the thickness direction of the armature assembly (30).

5. The relay of claim 4 wherein, The connecting portion (71) is fixed to the first wall (342) along the length direction of the armature assembly (30).

6. The relay of claim 5 wherein, The auxiliary moving contact (70) is a sheet structure, and the thickness direction of the auxiliary moving contact (70) is consistent with the thickness direction of the armature assembly (30).

7. The relay of claim 5 wherein, Each auxiliary moving contact portion (72) is spaced apart from at least two contact branches (721) along the Z-axis direction; the at least two contact branches (721) are adapted to contact or separate from the corresponding auxiliary static contact (60).

8. The relay of claim 7 wherein, Each contact branch (721) is adapted to deform along the X-axis direction.

9. The relay of claim 5 wherein, The magnetic circuit part (100) has a magnetic holding function; The coil assembly (20) is provided with two magnetic driving ends (241) arranged along the Y-axis direction; The armature assembly (30) comprises a permanent magnet, two armatures (31) and an insulation member (34); the two armatures (31) are respectively fixed to two magnetic poles of the permanent magnet; each armature (31) is provided with two attraction portions adapted to attract the magnetic driving end (241); in the magnetic holding state, the two armatures (31) respectively have one attraction portion to attract the corresponding magnetic driving end (241) to form a closed magnetic circuit passing through the two magnetic driving ends (241); the insulation member (34) is fixed to the permanent magnet; the auxiliary moving contact (70) is fixed to the insulation member (34); and the rotation axis is arranged along the length direction of the armature assembly (30).

10. The relay of claim 9, wherein the relay is configured to: The two armatures (31) are respectively a first armature (32) and a second armature (33); the auxiliary moving contact (70) is fixed to the side of the insulation member (34) close to the second armature (33). The two auxiliary static contacts (61) are a first auxiliary static contact (63) and a second auxiliary static contact (64), the first auxiliary static contact (63) is located on one side of the second armature (33) along the Y-axis direction and its projection on a projection plane perpendicular to the X-axis direction does not coincide with the projection of the second armature (33), and the second auxiliary static contact (64) is located on a side of the second armature (33) away from the first armature (32) and its projection on the projection plane perpendicular to the X-axis direction coincides with the projection of the second armature (33); The distance between the first auxiliary static contact (63) and the second auxiliary static contact (64) and a first plane is not equal, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

11. The relay of claim 10, wherein the relay is configured to: The extension directions of the two auxiliary moving contacts (72) are inclined relative to the length direction of the armature assembly (30), and the two auxiliary moving contacts (72) gradually incline to the side where the first armature (32) is located along the Y-axis direction from the direction of the first auxiliary static contact (63) to the second auxiliary static contact (64).

12. The relay of claim 11, wherein the relay is configured to: The angle between the extension directions of the two auxiliary moving contacts (72) and the length direction of the armature assembly (30) is less than 20°.

13. The relay of claim 11, wherein the relay is configured to: The rotation axis is closer to the side where the first armature (32) is located along the thickness direction of the armature assembly (30), and the length of the first armature (32) is greater than the length of the second armature (33).

14. The relay of claim 9, wherein the relay is a solid state relay. One side of the insulating piece (34) along the X-axis direction is provided with a slot (343) opening along the Z-axis direction, the connecting part (71) is limited in position with the slot (343) and a anti-disengagement structure is formed therebetween.

15. The relay of claim 14, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a composite material. The slot (343) extends along the length direction of the armature assembly (30) and penetrates both ends, and both ends of the auxiliary moving contact (70) extend out of the slot (343) to form an auxiliary moving contact (72) adapted to abut against the auxiliary static contact (61).

16. The relay of claim 15, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a combination thereof. The connecting part (71) is provided with a bending part (7121), and the bending part (7121) is limited in position with the slot (343) along the width direction of the slot (343).

17. The relay of claim 16, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a combination thereof. The number of the bending parts (7121) is two, and the two bending parts (7121) are respectively close to both ends of the length direction of the slot (343).

18. The relay of claim 14, wherein the relay is a solid state relay. The anti-disengagement structure comprises a limiting groove (7113) and a limiting protrusion (344) matched with the limiting groove (7113), one of the limiting protrusion (344) and the limiting groove (7113) is arranged on the slot wall of the slot (343), and the other is arranged on the connecting part (71).

19. The relay of claim 18, wherein the relay is configured to: The limiting protrusion (344) is arranged on the slot wall of the slot (343), and the connecting part (71) is provided with a deformation part (711), and the limiting groove (7113) is arranged on the deformation part (711).

20. The relay of claim 19, wherein the relay is configured to: The deformation part (711) is provided with a guide part (7114) matched with the slope of the limiting protrusion (344) towards the slot bottom of the slot (343) to deform the deformation part (711) away from the limiting protrusion (344).

21. The relay of claim 20, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a composite material. The limiting rib (345) is in interference fit with the positioning groove (713).

22. The relay of claim 21, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a combination thereof. The deformed part (711) comprises a first deformed part (7111) and a second deformed part (7112), the second deformed part (7112) is closer to the groove bottom of the insertion slot (343) than the first deformed part (7111) and is provided with the guide part (7114), the first deformed part (7111) is provided with the limiting groove (7113), and the positioning groove (713) is formed between the body (712) and the second deformed part (7112).

23. The relay of claim 21, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a combination thereof. The coil assembly (20) is provided with a coil winding (22) extending along the Y-axis direction and two yokes (24) arranged along the Y-axis direction, the magnetic driving end (241) is formed on the yoke (24) and extends along a direction perpendicular to the X-axis; the rotation axis is spaced apart from the coil winding (22) along the X-axis direction; two auxiliary static contact parts (61) are located in the area enclosed by the coil winding (22) and the two yokes (24).

24. The relay of any one of claims 1-23, wherein, It also includes a housing (10) and a contact part (200); the coil winding (22) is fixedly connected in the housing (10); the auxiliary moving contact (70) is fixedly connected to the insulating part (34) on the side close to the coil winding (22); the contact part (200) and the coil winding (22) are respectively located on both sides of a second plane along the X-axis direction, the second plane is perpendicular to the X-axis direction and passes through the rotation axis; the contact part (200) comprises a moving contact (40) and a static contact (50), the moving contact (40) is adapted to be driven by the armature assembly (30) to close or disconnect the static contact (50).

25. The relay of claim 24, wherein the housing is made of a material selected from the group consisting of: a thermoplastic, a thermoset, a metal, and a combination thereof. The contact part (200) is provided with a connection terminal (02), the coil assembly (20) is provided with a signal terminal (01), and the auxiliary monitoring part (300) is provided with a lead-out terminal (03), the connection terminal (02), the signal terminal (01) and the lead-out terminal (03) all extend out of the same side of the housing (10) along the Y-axis direction.

26. The relay of claim 25, wherein the relay is configured to: The housing (10) is provided with a bottom wall (111) supporting the coil assembly (20); each auxiliary static contact (60) is also provided with a fixed part (62) integrated with the auxiliary static contact part (61), the fixed part (62) extends along the Y-axis direction and is provided with the lead-out terminal (03); the fixed part (62) is fixedly connected to the bottom wall (111) of the housing (10).

27. The relay of claim 26, wherein the relay is configured to: ​

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