Relay

Abstract

The utility model discloses 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 on one side of the coil assembly along the X-axis direction, the coil assembly is provided with a magnetic driving end, and the armature assembly rotates around a rotating axis extending along the Z-axis direction in response to the polarity change of the magnetic driving end; the auxiliary monitoring part comprises two auxiliary static contacts and an auxiliary movable contact; the auxiliary moving contact rotates along with the armature assembly so as to connect or disconnect the two auxiliary static contacts in series, each auxiliary static contact is provided with an auxiliary static contact portion suitable for being abutted by the auxiliary moving contact in the X-axis direction, and the two auxiliary static contact portions are located on the two sides of the rotating axis in the Y-axis direction respectively and are close to the armature assembly. The relay has a state monitoring function and is small in size.

Description

Technical Field

[0001] The utility model relates to the field of relays, in particular to a relay. Background Art

[0002] The magnetic holding relay in the prior art usually includes a housing and a magnetic circuit part, a contact part, a push card and an auxiliary monitoring part accommodated in the housing. The magnetic circuit part includes a coil assembly and an armature assembly rotating relative to the coil assembly. The contact part includes a moving contact and a static contact group. The moving contact group is provided with a moving contact, and the static contact group is provided with a static contact. The push card is driven by the armature assembly to move and drive the moving contact and the static contact to close or disconnect. The magnetic circuit part has a magnetic holding function, the coil assembly is provided with two magnetic drive ends, the armature assembly includes a permanent magnet, two armatures and an insulating part fixed to the permanent magnet and the two armatures, each armature is provided with two attracting parts suitable for attracting the magnetic drive end, and the magnetic circuit part is in the magnetic holding state, the two armatures each have an attracting part that attracts the corresponding magnetic drive end to form a closed magnetic circuit. In this structure, the auxiliary monitoring part is usually driven by the armature assembly, and the two sides where the attracting part of the armature assembly is located generally need to cooperate with the magnetic drive end, and the space is very limited. In addition, the armature assembly generally needs to be arranged with coil windings and push cards / contact parts on both sides along the magnetic pole direction of its permanent magnet, and the space is also relatively compact. Therefore, if the auxiliary monitoring part needs to be installed, it is often necessary to increase the space of the accommodating parts on both sides of the magnetic pole direction of the permanent magnet of the armature assembly. Moreover, due to the need to avoid the coil assembly and / or the contact part / push card, the space that needs to be expanded is relatively large, resulting in a larger volume of the relay, which is not conducive to cost control and meeting usage requirements. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background technology and to provide a relay which has a state monitoring function and is relatively small in size.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Technical solution one and its preferred embodiment provide a relay, which includes a magnetic circuit part and an auxiliary monitoring part, the magnetic circuit part includes a coil assembly and an armature assembly arranged on one side of the coil assembly along the X-axis direction, the coil assembly is provided with a magnetic drive end, and the armature assembly rotates around a rotation axis extending along the Z-axis direction in response to the polarity change of the magnetic drive end; the auxiliary monitoring part includes two auxiliary static contacts and an auxiliary moving contact; the auxiliary moving contact rotates with the armature assembly to connect or disconnect the two auxiliary static contacts in series, each auxiliary static contact is provided with an auxiliary static contact portion suitable for being contacted by the auxiliary moving contact along the X-axis direction, and the two auxiliary static contacts are respectively located on both sides of the rotation axis along the Y-axis direction and close to the armature assembly.

[0006] Based on technical solution one, technical solution two is also provided. In technical solution two and its preferred embodiment, the auxiliary moving contact is fixed to the armature assembly and the fixed 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 both sides of the auxiliary moving contact along the X-axis direction.

[0007] Based on Technical Solution 2, Technical Solution 3 is also provided. In Technical Solution 3 and its preferred embodiment, auxiliary moving contact parts are respectively extended on both sides of the position where the auxiliary moving contact is fixed to the armature assembly; the two auxiliary moving contact parts are suitable for respectively contacting with the two auxiliary static contact parts, and their extension directions are parallel to the length direction of the armature assembly or at a preset angle.

[0008] Based on technical solution three, technical solution four is also provided. In technical solution four and its preferred embodiment, the auxiliary movable contact is further provided with a connecting portion fixedly connected to the first wall in the thickness direction of the armature assembly.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its preferred embodiment, the connecting portion is located centered on the first wall along the length direction of the armature assembly.

[0010] Based on Technical Solution 5, there is also Technical Solution 6. In Technical Solution 6 and its preferred embodiment, the auxiliary dynamic contact is a sheet-like structure, and its thickness direction is consistent with the thickness direction of the armature assembly.

[0011] Based on technical solution five, technical solution seven is also provided. In technical solution seven and its preferred embodiment, each of the auxiliary moving contact parts is provided with at least two contact branches spaced apart along the Z-axis direction, and each contact branch is suitable for contacting or separating with the corresponding auxiliary static contact.

[0012] Based on Technical Solution 7, there is also Technical Solution 8. In Technical Solution 8 and its preferred embodiment, each of the contact branches is suitable for deformation along the X-axis direction.

[0013] Based on Technical Solution Five, Technical Solution Nine is also provided. In Technical Solution Nine and its preferred embodiments, the magnetic circuit part has a magnetic holding function; the coil assembly is provided with two magnetic drive ends arranged along the Y-axis direction; the armature assembly includes a permanent magnet, two armatures and an insulating part, and the two armatures are respectively fixed to the two magnetic poles of the permanent magnet, and each armature is respectively provided with two attracting parts suitable for attracting the magnetic drive end. When the magnetic circuit part is in the magnetic holding state, the two armatures respectively have an attracting part to attract the corresponding magnetic drive end to form a closed magnetic circuit passing through the two magnetic drive ends; the insulating part is fixed to the permanent magnet; the auxiliary dynamic contact is fixed to the insulating part; and the rotation axis is centered along the length direction of the armature assembly.

[0014] Based on Technical Solution Nine, Technical Solution Ten is also provided. In Technical Solution Ten and its preferred embodiments, the two armatures are respectively a first armature and a second armature; the auxiliary dynamic contact is fixed to the side of the insulating member close to the second armature; the two auxiliary static contact parts are respectively 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 its projection 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 its projection 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 inconsistent, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

[0015] Based on technical solution ten, technical solution eleven is also provided. In technical solution eleven and its preferred embodiment, in the direction from the first auxiliary static contact part to the second auxiliary static contact part along the Y-axis direction, the extension directions of the two auxiliary moving contact parts are inclined toward the direction gradually approaching the first armature along the X-axis direction.

[0016] Based on technical solution eleven, technical solution twelve is also provided. In technical solution twelve and its preferred embodiment, the angle between the extension direction of the two auxiliary moving contacts and the length direction of the armature assembly is less than 20°.

[0017] Based on technical solution eleven, technical solution thirteen is also provided. In technical solution thirteen and its preferred embodiment, 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.

[0018] Based on Technical Solution Nine, Technical Solution Fourteen is also provided. In Technical Solution Fourteen and its preferred embodiment, the insulating part is provided with a slot opening along the Z-axis direction on one side along the X-axis direction, and the connecting part is limitedly matched with the slot and an anti-slip structure is formed between the two.

[0019] Based on technical solution fourteen, technical solution fifteen is also provided. In technical solution fifteen and its preferred embodiment, the slot extends along the length direction of the armature assembly and passes through both ends, and the two ends of the auxiliary moving contact respectively extend out of the slot to form an auxiliary moving contact part suitable for interfering with the auxiliary static contact part.

[0020] Based on technical solution fifteen, technical solution sixteen is also provided. In technical solution sixteen and its preferred embodiment, a bending portion is provided on the connecting portion, and the bending portion is limitedly matched with the slot along the width direction of the slot.

[0021] Based on technical solution sixteen, technical solution seventeen is also provided. In technical solution seventeen and its preferred embodiment, the number of the bending portions is two, and the two bending portions are respectively close to the two ends of the length direction of the slot.

[0022] Based on technical solution fourteen, technical solution eighteen is also provided. In technical solution eighteen and its preferred embodiment, the anti-slip structure includes a limiting groove and a limiting protrusion cooperating with the limiting groove; one of the limiting protrusion and the limiting groove is provided on the groove wall of the slot, and the other is provided on the connecting part.

[0023] Based on technical solution eighteen, technical solution nineteen is also provided. In technical solution nineteen and its preferred embodiment, the limiting protrusion is provided on the slot wall of the slot; the connecting portion is provided with a deformation portion, and the limiting groove is provided on the deformation portion.

[0024] Based on Technical Solution 19, Technical Solution 20 is also provided. In Technical Solution 20 and its preferred embodiment, the deformation part is provided with a guide part toward the bottom of the slot that cooperates with the inclined surface of the limiting protrusion to deform the deformation part away from the limiting protrusion.

[0025] Based on Technical Solution 20, Technical Solution 21 is also provided. In Technical Solution 21 and its preferred embodiment, a limiting rib extending along the Z-axis direction is protruded from the slot; the connecting part is also provided with a positioning groove that is plugged into and cooperates with the limiting rib; the connecting part is also provided with a main body connected to the deformation part; the positioning groove is formed between the main body and the deformation part.

[0026] Based on Technical Solution 21, Technical Solution 22 is also provided. In Technical Solution 22 and its preferred embodiment, the limiting rib is interference fit with the positioning groove.

[0027] Based on Technical Solution Twenty-Two, Technical Solution Twenty-Three is also provided. In Technical Solution Twenty-Three and its preferred embodiment, the deformation part includes a first deformation part and a second deformation part. Compared with the first deformation part, the second deformation part is closer to the bottom of the slot and is provided with the guide part. The first deformation part is provided with the limiting groove, and the positioning groove is formed between the main body and the second deformation part.

[0028] Based on any one of technical solutions one to twenty-three, a technical solution twenty-four is also provided. In technical solution twenty-four and its preferred embodiment, the coil assembly is provided with a coil winding extending along the Y-axis direction and two yokes arranged along the Y-axis direction, the magnetic drive end is formed on the yoke and extends in a direction perpendicular to the X-axis; the rotation axis and the coil winding are arranged at intervals along the X-axis direction; and the two auxiliary static contacts are located in the area enclosed by the coil winding and the two yokes.

[0029] Based on Technical Solution Twenty-four, Technical Solution Twenty-five is also provided. Technical Solution Twenty-five and its preferred embodiments further include an accommodating member and a contact portion; the coil winding is fixedly connected in the accommodating member; the auxiliary dynamic contact is fixedly connected to the side of the insulating member close to the coil winding; the contact portion and the coil winding are respectively located on both sides of the second plane along the X-axis direction, and the second plane is perpendicular to the X-axis direction and passes through the rotation axis; the contact portion includes a dynamic contact and a static contact, and the dynamic contact is suitable for being driven by the armature assembly to close or disconnect with the static contact.

[0030] Based on Technical Solution Twenty-Five, Technical Solution Twenty-Six is also provided. In Technical Solution Twenty-Six and its preferred embodiment, the contact part is provided with a connecting terminal, the coil assembly is provided with a signal terminal, and the auxiliary monitoring part is provided with a lead-out terminal. The connecting terminal, signal terminal and lead-out terminal all extend out of the same side of the accommodating part along the Y-axis direction.

[0031] Based on Technical Solution Twenty-six, Technical Solution Twenty-seven is also provided. In Technical Solution Twenty-seven and its preferred embodiment, the accommodating member is provided with a bottom wall supporting the coil assembly; each of the auxiliary static contact members is also provided with a fixing portion connected to the auxiliary static contact portion, the fixing portion extending along the Y-axis direction and provided with the lead-out terminal; the fixing portion is fixedly connected to the bottom wall of the accommodating member.

[0032] From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0033] Through continuous observation, experimentation, and research, the applicant has determined that the reason why installing the auxiliary monitoring part in the existing technical solution leads to the technical problem of "large relay volume" is not only due to limited space, but also because the existing auxiliary monitoring part's structure occupies a large volume. The existing auxiliary monitoring part generally includes two types: first, the standard micro switch part, which has standard dimensions and is relatively large, and cannot adapt well to the limited space on both sides of the armature assembly; second, the matching structure of the movable and static springs, which are spaced apart and arranged in the container. The movable spring and the static spring need to deform and recover to form a closed and open state with the static spring. The deformation requires a certain amount of space to be reserved, so the volume is also large and cannot adapt well to the limited space on both sides of the armature assembly. Therefore, the space of the container can only be greatly expanded to install the auxiliary monitoring part.

[0034] In technical solution 1 and its preferred embodiment, 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 static contacts in series, and each auxiliary static contact is provided with an auxiliary static contact portion suitable for being contacted by the auxiliary moving contact along the X-axis direction, and the two auxiliary static contact portions are respectively located on both sides of the rotation axis along the Y-axis direction and close to the armature assembly, therefore, the auxiliary moving contact and the two auxiliary static contact portions A bridge structure extending along the Y-axis direction is formed, wherein, as long as the auxiliary moving contact has a certain length in the Y-axis direction and can follow the armature assembly, it can be connected in series or disconnected with the two auxiliary static contacts. Therefore, the length of the auxiliary moving contact in the X-axis direction and the Z-axis direction can be set to be smaller. Since the two auxiliary static contacts are also arranged along the Y-axis direction, the entire auxiliary monitoring part only needs to occupy a larger space in the Y-axis direction, and can occupy a smaller space in the X-axis direction. When the space on both sides of the armature assembly is narrow, the auxiliary moving contact can even be set to The sheet structure minimizes the space occupied by the auxiliary moving contact in the X-axis direction, and since the two auxiliary static contacts are close to the armature assembly, the distance between the two auxiliary static contacts along the X-axis and Y-axis directions will not be too large, which further makes the space occupied by the auxiliary monitoring part in the Y-axis direction close to the space occupied by the armature assembly in the Y-axis direction, and the space occupied in the X-axis direction can be smaller, so that the entire auxiliary monitoring part can occupy a smaller size on both sides of the armature assembly, and the maximum size occupied by the auxiliary monitoring part in the X-axis direction is only the distance between the auxiliary moving contact and the auxiliary static contact when they are disconnected, and the space occupied is small. Therefore, as long as the auxiliary monitoring part can avoid the coil assembly or the contact part / push card, the auxiliary monitoring part can be easily installed in the limited space on both sides of the armature assembly without increasing the volume of the accommodating part too much in the X-axis direction or even without increasing the volume of the accommodating part in the X-axis direction; in addition, the auxiliary monitoring part in the present technical solution occupies less space than the standard micro switch part, and the position of the terminal of the auxiliary monitoring part can be adjusted as needed, and the structural design is simpler.

[0035] In technical solution 2 and its preferred embodiment, the auxiliary movable contact is fixedly connected to the armature assembly and the location of the fixing is located between the two auxiliary static contacts along the Y-axis direction; the two auxiliary static contacts are located on either side of the auxiliary movable contact along the X-axis direction, so that when the auxiliary movable contact is connected in series with the two auxiliary static contacts, the contact pressure with the two auxiliary static contacts is more balanced, thereby allowing the auxiliary movable contact to contact or disconnect with the two auxiliary static contacts simultaneously. The two auxiliary static contacts are located on either side of the auxiliary movable contact along the X-axis direction, and the two auxiliary static contacts are staggered along the X-axis direction when projected on a plane perpendicular to the Y-axis direction. This simplifies the processing of the auxiliary movable contact compared to overlapping projections of the two auxiliary static contacts on a plane perpendicular to the Y-axis direction. In addition, with this arrangement, the two opposing surfaces of the auxiliary movable contact respectively contact the two auxiliary static contacts. Compared to surfaces on the same side of the auxiliary movable contact contacting the two auxiliary static contacts, this better utilizes the space in the thickness direction of the auxiliary movable contact, thereby facilitating a reduction in the space occupied by the auxiliary monitoring portion in the X-axis direction.

[0036] In technical solution three and its preferred embodiment, the length direction of the armature assembly is the length direction of the armature in the armature assembly; the two auxiliary moving contacts are suitable for respectively contacting with the two auxiliary static contacts, and their extension directions are parallel to or at a preset angle relative to the length direction of the armature assembly, and the preset angle does not include verticality. Therefore, the space occupied by the auxiliary moving contact in the thickness direction of the armature assembly is smaller, which is beneficial to reducing the space occupied by the auxiliary monitoring part in the X-axis direction; in addition, this setting is also beneficial to the auxiliary moving contact being made into a relatively flat structure in the X-axis direction, which is beneficial to reducing the space occupied by 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 spacing between the two auxiliary static contacts in the auxiliary monitoring part along the X-axis direction should be reduced as much as possible. In this way, if the extension direction of the two auxiliary moving contacts is parallel to the length direction of the armature assembly, the contact gap between the auxiliary moving contact and the two auxiliary static contacts may be too small, which will cause the auxiliary moving contact to deform more when it rotates with the armature to abut against the two auxiliary static contacts, and the stress it is subjected to is also greater, making it prone to fatigue damage or plastic deformation, affecting its service life. To this end, the extension direction of the two auxiliary moving contacts is set at a preset angle relative to the length direction of the armature assembly, so that in the disconnected state, the auxiliary moving contact has a larger spacing along the X-axis direction than the corresponding two auxiliary static contacts, thereby ensuring that the two auxiliary static contacts do not need to be spaced far apart along the X-axis direction, and at the same time making the auxiliary moving contact have a longer service life.

[0037] In technical solution four and its preferred embodiment, the thickness direction of the armature assembly is the layout direction of the two armatures in the armature assembly; the auxiliary moving contact is fixed to the first wall in the thickness direction of the armature assembly, so that the space occupied by the auxiliary moving contact in the Z-axis direction can be kept no larger than the space occupied by the armature assembly in the Z-axis direction, thereby avoiding the setting of the auxiliary monitoring part increasing the height of the relay in the Z-axis direction.

[0038] In technical solution five and its preferred embodiment, the connecting portion is located centered on the first wall along the length direction of the armature assembly, which can further reduce the space occupied by the auxiliary movable contact in the Y-axis direction.

[0039] In technical solution six and its preferred implementation, the auxiliary moving contact is a sheet-like structure, and its thickness direction is consistent with the thickness direction of the armature assembly, further reducing the space occupied by the auxiliary moving contact in the X-axis direction.

[0040] In Technical Solution 7 and its preferred embodiments, the auxiliary static contact extends along the Z-axis, and each auxiliary moving contact is provided with at least two contact branches spaced apart along the Z-axis. Each contact branch is adapted to contact or separate from the corresponding auxiliary static contact. This allows the current flowing through the auxiliary moving contact to be split into multiple paths when the auxiliary moving contact contacts the auxiliary static contact, thereby reducing the resistance of the moving contact and improving the overall current-carrying capacity. This arrangement also facilitates deformation of the auxiliary moving contact and reduces the probability of the auxiliary moving contact failing to contact the auxiliary static contact due to deformation or vibration, thereby improving connection reliability.

[0041] In technical solution eight and its preferred embodiments, each contact branch is suitable for deformation along the X-axis direction, and the force along the X-axis transmitted to the auxiliary moving contact part by the armature assembly is relatively large, which can give the auxiliary moving contact part and the auxiliary contact part a certain contact pressure. In other words, by designing the position of the auxiliary static contact, when the armature assembly is rotated into place, the auxiliary moving contact part abuts against the auxiliary contact part, causing the auxiliary moving contact part to form an appropriate deformation, which is conducive to obtaining a more stable contact relationship after conduction and higher connection reliability.

[0042] In technical solution nine and its preferred embodiment, in the magnetic holding state, each of the two armatures has an attraction portion that attracts the corresponding magnetic drive end to form a closed magnetic circuit passing through the two magnetic drive ends. The closed magnetic circuit passes from one magnetic pole of the permanent magnet through an attraction portion, a magnetic drive end, the iron core, the other magnetic drive end, and the other attraction portion back to the other magnetic pole of the permanent magnet. Compared with a closed magnetic circuit that only passes through one magnetic drive end, the closed magnetic circuit of this technical solution has a greater magnetic attraction force and a more stable magnetic circuit. The permanent magnet can also keep the attraction portion and the magnetic drive end attracted when the coil assembly is powered off. The auxiliary moving contact is fixed to the insulating part, which is beneficial for processing and avoids the influence of the magnetic effect on the armature when the auxiliary monitoring part is flowing. The rotation axis is set in the center along the length direction of the armature assembly, which makes it easier for the force arms of the two attraction portions of each armature to be consistent, which is more conducive to improving the connection reliability.

[0043] In technical solution ten and its preferred embodiment, 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 overlap 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 overlaps with the projection of the second armature. On the one hand, it is beneficial to reduce the distance between the two auxiliary static contact portions in the Y-axis direction, and on the other hand, it is beneficial to achieve inconsistent distances between the two auxiliary static contact portions and the first plane. Compared with the solution in which the distances between the two auxiliary static contact portions and the first plane are consistent, when the rotation angle of the auxiliary moving contact is constant, 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 is, the smaller the space occupied by the auxiliary monitoring part in the X-axis direction. Therefore, the above arrangement further reduces the space occupied by the auxiliary monitoring part in the X-axis direction.

[0044] In the eleventh technical solution and its preferred embodiment, the extension direction of the two auxiliary movable contacts, from the first auxiliary static contact toward the second auxiliary static contact along the Y-axis, is inclined toward a direction gradually approaching the first armature along the X-axis. This facilitates the formation of a larger gap between the auxiliary movable contact and both the first and second auxiliary static contacts when disconnected. Furthermore, as described above, the line connecting the two auxiliary movable contacts is arranged at a predetermined angle with the length of the armature assembly. This allows the auxiliary movable contact to have a larger spacing along the X-axis relative to the corresponding two auxiliary static contacts when disconnected, thereby ensuring that the two auxiliary static contacts are not spaced too far apart along the X-axis and also extending the service life of the auxiliary movable contact.

[0045] In technical solution 12 and its preferred embodiment, the angle between the line connecting the two auxiliary moving contacts and the length direction of the armature assembly is less than 20°. While ensuring the disconnection gap between the auxiliary moving contact and the auxiliary static contact, the space occupied by the auxiliary moving contact in the X-axis direction is further reduced, and the distance between the two auxiliary static contacts along the X-axis direction is also made smaller, thereby reducing the space occupied by the auxiliary monitoring part in the X-axis direction.

[0046] In Technical Solution 13 and its preferred embodiment, the axis of rotation is closer to the side of the first armature along the thickness direction of the armature assembly, and the length of the first armature is greater than that of the second armature. This, on the one hand, is more conducive to compensating for the inconsistent rotation ranges of the first and second armatures caused by the eccentric arrangement of the axis of rotation along the thickness direction of the armature assembly, thereby ensuring the abutment between the attraction portions of the first and second armatures and the magnetic drive end, as well as the consistency of the magnetic flux areas. On the other hand, the auxiliary moving contact is fixed to the side of the insulating member near the second armature, so that the distance between the two auxiliary static contacts along the Y-axis does not need to be too large to avoid the armature assembly, thereby reducing the space occupied by the auxiliary monitoring portion in the Y-axis direction. The first auxiliary static contact is located on the side of the second armature along the Y-axis, and fully utilizes the space on the side of the second armature along the Y-axis due to its shorter size than the first armature.

[0047] In technical solution fourteen and its preferred embodiment, a slot opening along the Z-axis direction is provided on one side of the insulating part along the X-axis direction, and the connecting part and the slot are limited and matched, and an anti-slip structure is formed between the two. Compared with other fixing methods such as gluing, welding or screwing, the production process is reduced and the production efficiency is higher. The limiting match here means that after the connecting part is plugged into the slot, the position is limited in the extension direction and width direction of the slot, and the rotation prevention around the axis parallel to the X-axis direction; compared with only snap-on connection and other methods, the limiting match between the slot and the connecting part is more stable; the anti-slip structure is formed between the connecting part and the slot, which further improves the stability of the structure after the auxiliary dynamic contact and the insulating part are connected. The anti-slip structure here means a structure that prevents the connecting part from detaching from the slot along the Z-axis direction.

[0048] In technical solution fifteen and its preferred embodiment, the slot extends along the length direction of the armature assembly and is passed through at both ends. The two ends of the auxiliary moving contact respectively extend out of the slot to form an auxiliary moving contact part suitable for interfering with the auxiliary static contact part. Compared with the solution in which the two ends of the auxiliary moving contact do not directly pass through the slot, the auxiliary monitoring part occupies less space in the X-axis direction.

[0049] In technical solution sixteen and its preferred embodiment, the setting of the bending portion not only realizes the limiting cooperation with the slot along the width direction of the slot with a simple structure, but also facilitates the deformation of the auxiliary dynamic contact, making the on and off of the auxiliary monitoring part more reliable, and is also conducive to making the structural stability of the part of the connection part other than the bending portion better, and ensuring the connection stability with the insulating part.

[0050] In Technical Solution 17 and its preferred embodiment, the two bent portions are located near the ends of the slot in the longitudinal direction. This allows the connection portion and the slot to form a limited fit along the slot width, improving the stability of the auxiliary movable contact on the armature assembly. Furthermore, the two bent portions serve as deformation fulcrums for the two auxiliary movable contacts, making the switching of the auxiliary monitoring portion more reliable. This also helps improve the structural stability of the connection portion (excluding the bent portions) and ensures a stable connection to the insulating member.

[0051] In technical solution eighteen and its preferred embodiment, the anti-slip structure includes a limiting groove and a limiting protrusion cooperating with the limiting groove; one of the limiting protrusion and the limiting groove is arranged on the groove wall of the slot, and the other is arranged on the connecting part. The structure is simple and easy to process, and the resistance is small during insertion.

[0052] In technical solution nineteen and its preferred embodiment, the connecting part is provided with a deformation part, and a limiting groove is provided on the deformation part. When the connecting part is inserted into the slot, the deformation part deforms so that the limiting groove and the limiting part form a limiting fit, and the insertion of the connecting part is more labor-saving.

[0053] In technical solution 20 and its preferred embodiment, a guide portion is provided at the bottom of the slot facing the deformation part, which cooperates with the inclined surface of the limiting protrusion to enable the deformation part to deform away from the limiting protrusion, so that the deformation part is deformed during the process of inserting into the slot and is not easy to interfere with the limiting protrusion. The guide portion can also guide the deformation part during the process of inserting the deformation part into the slot, making the insertion more labor-saving. After being inserted into place, the deformation part restores its deformation.

[0054] In technical solution twenty-one and its preferred embodiments, the plug-in cooperation of the limiting rib and the positioning groove is conducive to achieving the limitation of the connecting part and the slot in the length direction of the slot and limiting the rotation of the connecting part relative to the insulating part around the axis parallel to the thickness direction of the armature assembly, thereby further making the connection between the auxiliary dynamic contact and the insulating part more stable; wherein the positioning groove is formed between the main body and the deformation part. Due to the deformation of the deformation part during the insertion process, the groove wall of the positioning groove first moves away from the limiting rib, so that the friction between the limiting rib and the positioning groove is reduced, which is more labor-saving during insertion. After being plugged into place, the limiting rib is plugged into the positioning groove to limit the connecting part.

[0055] In Technical Solution Twenty-Two and its preferred embodiments, the limiting ribs and the positioning grooves have an interference fit, which not only realizes the limiting fit of the connecting part and the slot along the extension direction of the slot, but also realizes the anti-rotation fit of the connecting part and the slot around the axis parallel to the X-axis direction. Therefore, after the connecting part and the slot are plugged into place, the auxiliary dynamic contact is fixed on the insulating part without the need for other fixing methods. The connection structure is simple and easy to assemble.

[0056] In Technical Solution Twenty-three and its preferred embodiments, due to the interference fit between the limiting rib and the positioning groove, the second deformation part may get stuck and cannot be reliably reset. The first deformation part is further away from the bottom of the slot, so that the deformation can still be reliably restored when the second deformation part gets stuck, thereby ensuring that the limiting groove and the limiting protrusion are reliably plugged in and fit together.

[0057] In technical solution twenty-four and its preferred embodiment, the two auxiliary static contacts are located in the area enclosed by the coil winding 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 two auxiliary static contacts 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 contacts along the X-axis direction is shorter, so that the auxiliary moving contact can occupy a smaller space in the X-axis direction, further creating conditions for the auxiliary monitoring part to occupy a smaller space in the X-axis direction.

[0058] In Technical Solution Twenty-Five and its preferred embodiment, the auxiliary dynamic contact is fixed to the side of the insulating part close to the coil winding, and the contact part and the coil winding are respectively located on both sides of the first plane along the X-axis direction, so that the contact part and the coil winding and the auxiliary monitoring part are far away from each other in the X-axis direction, so that 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 maintained in a larger range, which improves the electrical isolation problem and is conducive to the isolation of strong and weak-current terminals.

[0059] In technical solution twenty-six and its preferred embodiment, the connecting terminal, signal terminal and lead terminal all extend out of the same side of the accommodating component along the Y-axis direction, which is conducive to connecting the relay to the PCB board along the Y-axis direction.

[0060] In technical solution twenty-seven and its preferred embodiment, the accommodating member is provided with a bottom wall supporting the coil assembly; each auxiliary static contact is also provided with a fixing portion connected to the auxiliary static contact portion, the fixing portion extends along the Y-axis direction and is provided with a lead terminal; the fixing portion is fixed to the bottom wall of the accommodating member, which on the one hand makes the structure of the auxiliary static contact simple and easy to process, and on the other hand, makes it difficult for the lead terminal to avoid the armature assembly or the coil assembly without the need for bending, thereby improving the service life of the auxiliary static contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0062] Figure 1 This is a three-dimensional exploded view of the relay according to an embodiment of the present application;

[0063] Figure 2 A schematic diagram of a base according to an embodiment of the present application;

[0064] Figure 3 This is a bottom view of the base of the embodiment of the present application with two auxiliary static contacts installed;

[0065] Figure 4 This is a top view of the armature assembly of the embodiment of the present application when the outer cover is hidden in the first position;

[0066] Figure 5 This is a top view of the armature assembly in the embodiment of the present application when the outer cover is hidden in the second position.

[0067] Figure 6 A schematic diagram of an armature assembly according to an embodiment of the present application;

[0068] Figure 7 for Figure 6 A top view of

[0069] Figure 8 for Figure 7 Cross-sectional view in the AA direction;

[0070] Figure 9 This is a schematic diagram of the armature assembly and the auxiliary monitoring part installed on the base according to an embodiment of the present application;

[0071] Figure 10 A schematic diagram of an auxiliary moving contact member according to an embodiment of the present application;

[0072] Figure 11 A perspective schematic diagram of the armature assembly and the auxiliary monitoring part of an embodiment of the present application;

[0073] Figure 12 for Figure 11 A top view of

[0074] Figure 13 for Figure 12 A three-dimensional cross-sectional view of the two auxiliary static contacts hidden in the BB direction;

[0075] Description of main reference numerals:

[0076] Container 10; base 11; bottom wall 111; first insertion hole 1111; first side wall 112; first through-groove 1121; second through-groove 1122; third through-groove 1123; partition wall 113; through-hole 1131; first groove 114; first orientation groove 1141; matching groove 1142; second groove 115; second orientation groove 1151; third orientation groove 1152; fourth orientation groove 1153; fifth orientation groove Slot 1154; support base 116; outer cover 12; fixing frame 13; second jack 131; magnetic circuit portion 100; coil assembly 20; coil frame 21; center hole 211; retaining wall 212; coil winding 22; iron core 23; yoke 24; magnetic drive end 241; first magnetic drive end 242; second magnetic drive end 243; signal terminal 01; armature assembly 30; armature 31; first armature 32; first engaging portion 321; second armature 33; second engaging portion 331; insulating member 34; inserting shaft 341; first wall 342; slot 343; limiting protrusion 344; limiting rib 345; driving portion 35; pushing card 80; contact portion 200; movable contact 40; movable spring 41; movable contact point 411; movable spring lead-out piece 42; avoidance groove 421; static contact 50; static contact 51; connecting terminal 02; auxiliary monitoring portion 300 ; Auxiliary static contact 60; Auxiliary static contact portion 61; Fixed portion 62; First auxiliary static contact portion 63; Second auxiliary static contact portion 64; Lead-out terminal 03; Auxiliary moving contact 70; Connecting portion 71; Deformation portion 711; First deformation portion 7111; Second deformation portion 7112; Limiting groove 7113; Guide portion 7114; Main body 712; Bending portion 7121; Positioning groove 713; Auxiliary moving contact portion 72; Contact branch 721. DETAILED DESCRIPTION

[0077] In the claims and the specification, except in the embodiments, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" simply refer to the fact that features having one of these directions are perpendicular to features having another direction, and do not require that they be implemented in accordance with the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to both the Y-axis direction and the Z-axis direction. 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 the description, unless otherwise defined, the terms "first", "second" or "third", etc. are intended to distinguish different objects rather than to describe a specific order.

[0079] In the claims and the specification, unless otherwise specified, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are based on the directions and positional relationships shown in the accompanying drawings and are only for the convenience of simplifying the description, and do not imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction.

[0080] In the claims and description, unless otherwise specified, the term "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two parties, that is, including non-detachable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements.

[0081] In the claims and the description, unless otherwise defined, the terms "include", "have" and their variations mean "including but not limited to".

[0082] In the claims and the description, unless otherwise defined, the term "provided with" means that the technical feature thereafter is part of the technical feature therefor.

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

[0084] In the claims and the specification, unless otherwise defined, the term “connected as one body” means that two parts are directly connected without any other parts between them.

[0085] In the claims and the specification, unless otherwise defined, the term "extension direction" refers to the length direction of the object, including portions of the object that are bent or inclined in the length direction.

[0086] See also Figure 1 , Figure 1 The structure of a relay is shown. The relay includes an accommodating part 10 , a magnetic circuit part 100 , a contact part 200 and an auxiliary monitoring part 300 .

[0087] A relay is used to receive electrical signals to control the on / off state of an external circuit. Specifically, the relay in this embodiment is a magnetic latching relay, which controls the on / off state of an external circuit by receiving pulsed electrical signals. In this embodiment, the pulsed electrical signals can be divided into a first pulsed electrical signal and a second pulsed electrical signal. The first pulsed electrical signal and the second pulsed electrical signal are used to control the switching or on / off state of the external circuit, respectively.

[0088] The container 10 includes a base 11, an outer cover 12 and a fixing frame 13. Figure 1The structure of the base 11 and the outer cover 12 in this embodiment is shown. Figure 2 , Figure 2 A schematic diagram of the base 11 is shown. 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 this embodiment, the base 11 is open at one end along the Z-axis direction, and the outer cover 12 is covered with the opening and fixedly connected to the base 11. In this embodiment, the opening is located at the upper end of the base 11, and 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; a partition wall 113 extending along the Y-axis direction and perpendicular to the Z-axis direction is provided in the base 11, and the partition wall 113 divides the base 11 into a first groove 114 and a second groove along the X-axis direction. 115, the partition wall 113 is provided with a through-opening 1131 near the first side wall 112, and the bottom wall 111 forms the bottom of the first groove 114 and the second groove 115, wherein 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, and the inner cavities of the first groove 114 and the second groove 115 are both rectangular structures, and the first groove 114 is provided with a first orientation groove 1141 and a matching groove 1142, the first orientation groove 1141 is located at one end of the first groove 114 along the Y-axis direction, and the matching groove 1142 is located at the other end of the first groove 114 along the Y-axis direction, and the two first through-grooves 1121 correspond to the first groove 114; the bottom of the second groove 115 is provided with a convex shaft protruding near the partition wall 113, and a first insertion hole 1111 extending along the Z-axis direction is formed in the convex shaft, and a first limiting portion and a second limiting portion are further provided in the second groove 115, see also. Figure 3 , Figure 3 A bottom view of the base 11 is shown in which two auxiliary static contacts 60 are installed. The first limiting portion is formed by a second directional groove 1151 extending along the Z-axis direction and opening at the bottom wall 111 and a third directional groove 1152 extending along the Y-axis direction and opening downward, wherein the second directional groove 1151 is also connected to the third directional groove 1152 along the Y-axis direction, and the second limiting portion is formed by a fourth directional groove 1153 extending along the Z-axis direction and opening at 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 connected along the Y-axis direction, the second through-groove 1122 and the third through-groove 1123 correspond to the second groove 115, the second through-groove 1122 is close to the bottom end of the first side wall 112, and the third through-groove 1123 is located at the end of the first side wall 112 facing the opening, and the two second through-grooves 1122 are opposite to the third directional groove 1152 and the fifth directional groove 1154 respectively. The base 11 further has a support base 116 disposed in the second groove 115 near the partition wall 113 .

[0089] See also Figure 1 The outer cover 12 is a rectangular parallelepiped structure, which is similar to the length, width and height of the base 11 but slightly larger than the length, width and height of the base 11. One end along the Y-axis is opened, and the outer cover 12 can be inserted into the outside of the base 11 along the Y-axis and sealed and fixed with the base 11 to block the opening of the base 11.

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

[0091] See also Figure 4-5 , Figure 4-5 The schematic diagram shows the magnetic circuit portion 100 installed in the accommodating member 10 . The magnetic circuit portion 100 (except for the signal terminal 01 mentioned below) is basically accommodated in the second slot 115 . The magnetic circuit portion 100 includes a coil assembly 20 and an armature assembly 30 .

[0092] See also Figure 4-5 The coil assembly 20 is placed in the second slot 115 and supported by the bottom wall 111 of the second slot 115. Figure 1 The coil assembly 20 includes a coil frame 21, a coil winding 22, an iron core 23, and two yokes 24. The coil frame 21 is fixedly connected to the second slot 115. The coil frame 21 extends along the Y-axis and is provided with a center hole 211 extending along the Y-axis. The coil frame 21 is provided with retaining walls 212 at both ends along the Y-axis. The coil winding 22 is wound around the coil frame 21 and is located between the two retaining walls 212. Therefore, the axis of the coil winding 22 also extends along the Y-axis. The coil winding 22 is connected to the signal terminal 01. The signal terminal 01 is fixedly connected to the retaining wall 212 of the coil frame 21 and passes through the first side wall 112 along the Y-axis and extends out of the third through slot 1123 of the first side wall 112 (see Figure 4 and Figure 5 ). The iron core 23 extends along the Y-axis direction and is inserted into the center hole 211 of the coil frame 21. The two yokes 24 are respectively fixed to the two ends of the iron core 23, and the ends of the two yokes 24 away from the iron core 23 respectively form flat magnetic drive ends 241 perpendicular to the X-axis direction. The two magnetic drive ends 241 are arranged along the Y-axis direction, and the two magnetic drive ends 241 are respectively the first magnetic drive end 242 and the second magnetic drive end 243. When the signal terminal 01 receives a pulse electrical signal, the polarities of the first magnetic drive end 242 and the second magnetic drive end 243 are opposite, and when the signal terminal 01 switches to receive the first pulse electrical signal and the second pulse electrical signal, the first magnetic drive end 242 and the second magnetic drive end 243 change between the S pole and the N pole, respectively.

[0093] See also Figure 1 and Figure 6-8 , Figure 6-8 The structure of the armature assembly 30 is shown. The armature assembly 30 is arranged on one side of the coil assembly 20 along the X-axis. The armature assembly 30 rotates about a rotation axis extending along the Z-axis in response to a change in polarity of the magnetic drive end 241. In this embodiment, the armature assembly 30 rotates between a first position and a second position. The rotation axis of the armature assembly 30 and the axis of the coil winding 22 are spaced apart along the X-axis.

[0094] like Figure 1 and Figure 6-8 As shown, in this embodiment, the armature assembly 30 includes a permanent magnet (not shown), two armatures 31, and an insulating member 34. The permanent magnet is formed of magnetized steel. In other embodiments, the permanent magnet can also be made of other permanent magnetic materials, such as neodymium iron boron permanent magnets. The permanent magnet has two fixed magnetic poles with opposite polarity. The two armatures 31 are respectively fixed to the two magnetic poles of the permanent magnet. Each armature 31 is provided with two engaging portions suitable for engaging with the magnetic drive end 241. When the magnetic circuit portion 100 is in the magnetic holding state, each armature 31 has an engaging portion that attracts the corresponding magnetic drive end 241 to form a closed magnetic circuit passing through the two magnetic drive ends 241. In this embodiment, the two armatures 31 are respectively a first armature 32 and a second armature 33. The first armature 32 is provided with two first engaging portions 321 at each end in the longitudinal direction, and the second armature 33 is provided with two second engaging portions 331 at each end in the longitudinal direction. The length of the first armature 32 is longer than the length of the second armature 33.

[0095] The insulating member 34 is fixedly connected to the permanent magnet and the two armatures 31. Exemplarily, the insulating member 34 may be an injection-molded part. The insulating member 34 wraps around the two armatures 31 and the permanent magnet to form a single unit. Both ends of the first armature 32 and the second armature 33 are located outside the insulating member 34. Protruding from both sides of the insulating member 34 along the Z-axis, near the first armature 32, are inserted shafts 341 extending along the Z-axis. The two inserted shafts 341 are coaxial and form the rotation axis of the armature assembly 30. In the example provided in this 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 centered along the length direction of the armature assembly 30. In other possible examples, the rotation axis may also be centered between the first armature 32 and the second armature 33 along the width direction of the armature assembly. The length direction of the armature assembly 30 described above 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 layout direction of the first armature 32 and the second armature 33, and 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 insulating member 34 is provided with a first wall 342 on one side along the X-axis direction, and the first wall 342 is provided with a slot 343 opening along the Z-axis direction. Figure 4-5 The slot 343 is located on the side of the insulating member 34 near the coil winding 22. The slot 343 extends along the length of the armature assembly 30 and passes through both ends. The slot 343 is located in the center of the length of the armature assembly 30 on the first wall 342 of the insulating member 34 in the thickness direction. A stopper protrusion 344 is protruded from one of the slot walls of the slot 343. The upper end of the stopper protrusion 344 is provided with an inclined surface that slopes downward from the top to the other slot wall. Figure 8 A limiting rib 345 extending along the Z-axis direction is protruded from the slot 343 . In this embodiment, there are two limiting ribs 345 , which are spaced apart along the length direction of the slot 343 .

[0097] A driving portion 35 is provided on a side of the insulating member 34 close to the first armature 32 .

[0098] See also Figure 1 , Figure 4-5 The push card 80 extends along the X-axis direction, and its two ends are respectively adapted to connect with the driving portion 35 and the movable contact member 40 described below. The push card 80 passes through the through-hole 1131 of the partition wall 113 and is adapted to be driven by the driving portion 35 to move along the X-axis direction.

[0099] See also Figure 1 and Figure 4-5 , the contact portion 200, except for the connection terminal 02 mentioned below, is accommodated in the first groove 114. The contact portion 200 includes a dynamic contact 40 and a static contact 50. The dynamic contact 40 includes a dynamic spring piece 41 and a dynamic spring lead-out piece 42. One end of the dynamic spring piece 41 along its length direction is fixed to the first directional groove 1141, and the other end is suitable for swinging and is provided with a dynamic contact point 411. The dynamic spring lead-out piece 42 avoids the dynamic contact point 411 and is fixedly connected to the dynamic spring piece 41 and passes through one of the first through grooves 1121 to form one of the connection terminals 02. In this embodiment, the dynamic spring lead-out piece 4 2 is fixedly connected to the fixed end of the movable spring piece 41 and inserted into the first directional slot 1141. The movable spring lead-out piece 42 is provided with a relief slot 421 extending along the X-axis and opening upward, and the relief slot 421 allows the push card 80 to pass through. The static contact 50 extends along the Y-axis and is fixed in the matching slot 1142. The static contact 50 is provided with a static contact point 51 and another connecting terminal 02 extending through another first through slot 1121. The swinging end of the movable spring piece 41 is connected to the push card 80 so as to be driven by the armature assembly 30 to close or open the movable contact point 411 and the static contact point 51 along the X-axis.

[0100] See also Figure 4-5The auxiliary monitoring part 200, except for the lead-out terminal 03 described below, is basically accommodated in the second groove 115. The auxiliary monitoring part 200 is used to monitor the working status of the armature assembly 30, and includes 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 in series.

[0101] See also Figure 9 , Figure 9 Schematic diagram showing the armature assembly 30 and the auxiliary monitoring portion 300 mounted on the base 11, see Figure 11 , Figure 11 A schematic diagram of the armature assembly 30 and the auxiliary monitoring part 300 is shown. The auxiliary static contact 60 is roughly L-shaped. Each auxiliary static contact 60 is provided with an auxiliary static contact portion 61 suitable for being abutted by the auxiliary moving contact 70 along the X-axis direction and a fixed portion 62 connected to the auxiliary static contact portion 61. The fixed portion 62 extends along the Y-axis direction and is provided with a 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 respectively cooperate with the first limiting portion and the second limiting portion and respectively pass through the two second through grooves 1122 to form the lead-out terminal 03.

[0102] See also Figure 4-5 The two auxiliary static contacts 61 are located on either side of the rotation axis along the Y-axis and are proximate to the armature assembly 30. In this embodiment, the two auxiliary static contacts 61 are located within the area enclosed by the coil winding 22 and the two yokes 24 and are offset from each other along the X-axis when projected perpendicularly to the Y-axis. The two auxiliary static contacts 61 are respectively 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, and its projection on a plane perpendicular to the X-axis does not overlap with the projection of the second armature 33. The second auxiliary static contact 64 is located on the side of the second armature 33 away from the first armature 32, and its projection on a plane perpendicular to the X-axis overlaps with the projection of the second armature 33. The first and second auxiliary static contacts 63 and 64 are at different distances from a first plane, which is perpendicular to the Y-axis and passes through the rotation axis.

[0103] See also Figure 10 , Figure 10 A schematic diagram of the auxiliary movable contact 70 according to an embodiment of the present application is shown. The auxiliary movable contact 70 is a sheet-like structure. Figure 11-13 , Figure 11-13A schematic diagram of the cooperation between the auxiliary moving contact 70 and the armature assembly 30 is shown. The thickness direction of the auxiliary moving contact 70 is consistent with the thickness direction of the armature assembly 30. The auxiliary moving contact 70 is fixed to the side of the insulating part 34 close to the coil winding 22, that is, the auxiliary moving contact 70 is fixed to the side of the insulating part 34 close to the second armature 33; the auxiliary moving contact 70 is provided with a connecting portion 71 fixed to the first wall 342 of the insulating part 34, and the connecting portion 71 is limitedly cooperated with the slot 343 and an anti-slip structure is formed therebetween. The limiting cooperation here means that after the connecting portion 71 is plugged into the slot 343, the connecting portion 71 is limited in the extension direction and width direction of the slot 343 and the anti-rotation cooperation around an axis parallel to the X-axis direction. The anti-slip structure here means a structure that prevents the connecting portion 71 from detaching from the slot 343 along the Z-axis direction. The two ends of the auxiliary movable contact 70 extend out of the slot 343 to form auxiliary movable contact portions 72 suitable for contacting the auxiliary static contact portion 61. That is, auxiliary movable contact portions 72 are respectively extended on both 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 respectively suitable for contacting the two auxiliary static contact portions 61, and their extension direction is parallel to the length direction of the armature assembly 30 or at a preset angle. Figure 12 In this embodiment, along the Y-axis direction from the first auxiliary static contact portion 63 to the second auxiliary static contact portion 64, the extension direction of the two auxiliary movable contact portions 72 is inclined toward the direction gradually approaching the first armature 32 along the X-axis direction, and the angle α between the extension direction of the two auxiliary movable contact portions 72 and the length direction of the armature assembly 30 is less than 20°. Figure 12 The included angle α is 3°. Each auxiliary movable contact 72 has at least two contact branches 721 spaced apart along the Z-axis. Each contact branch 721 is adapted to contact or separate from the corresponding auxiliary static contact 61. Each contact branch 721 is adapted to deform along the X-axis. Therefore, the auxiliary movable contact 70 is fixedly connected to the insulating member 34 at a location between the two auxiliary static contacts 61 along the Y-axis.

[0104] See also Figure 10 The connecting portion 71 is provided with a deformation portion 711 and a main body 712 integrally connected to the deformation portion 711. The deformation portion 711 is composed of a first deformation portion 7111 and a second deformation portion 7112 integrally connected, wherein the second deformation portion 7112 is closer to the bottom of the slot 343 than the first deformation portion 7111. The first deformation portion 7111 is provided with a limiting groove 7113 forming an anti-slip structure with the limiting protrusion 344. The second deformation portion 7112 is provided with a guide portion 7114 toward the bottom of the slot 343 that cooperates with 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 slot wall of the slot 343, as long as the connecting portion 71 can be prevented from detaching from the slot 343 along the Z-axis direction. The main body 712 is provided with a bending portion 7121, see Figure 12 The bending portion 7121 is limitedly engaged with the slot 343 along the width direction of the slot 343. There are two bending portions 7121, and the two bending portions 7121 are respectively close to the two ends of the length direction of the slot 343. Figure 13 The connecting portion 71 is further provided with a positioning groove 713 that is plugged into and engaged with the limiting rib 345; the positioning groove 713 is formed between the body 712 and the second deformable portion 7112. In this embodiment, the limiting rib 345 and the positioning groove 713 are interference fit.

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

[0106] The two auxiliary static contacts 60 are connected to the first limiting portion and the second limiting portion respectively. Specifically, the fixing 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 groove 1152 and passes through the third through-groove 1123 to form one of the lead terminals 03. The auxiliary static contact portion 61 of the auxiliary static contact 60 is inserted into the second directional groove 1151 and is limitedly matched with the second directional groove 1151 along the X-axis direction and the Y-axis direction. The fixing 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 groove 1154 and passes through the third through-groove 1123 to form another lead terminal 03. The auxiliary static contact portion 61 of the auxiliary static contact 60 is inserted into the fourth directional groove 1153 and is limitedly matched with the fourth directional groove 1153 along the X-axis direction and the Y-axis direction. If necessary, the two first auxiliary static contacts 60 can be fixedly bonded to the base 11 by adhesive;

[0107] Insert the static contact 50 from the opening of the base 11 into the matching groove 1142, with one end penetrating through a first through-groove 1121 of the first side wall 112 to form one of the connection terminals 02. Insert the end of the movable contact 40 away from the push card 80 into the first directional groove 1141, with the movable spring lead-out piece 42 of the movable contact 40 penetrating through the other first through-groove 1121 of the first side wall 112 to form the other connection terminal 02.

[0108] After the push card 80 is connected to the driving portion 35 and the avoidance groove 421 of the movable spring lead-out piece 42 is connected to the swing end of the movable spring piece 41, the push card 80 and the armature assembly 30 are placed into the base 11, with the push card 80 passing through the through-hole 1131 of the partition wall 113, and the insertion shaft 341 of the armature assembly 30 inserted into the first insertion hole 1111;

[0109] Insert the connecting portion 71 of the auxiliary movable contact 70 into the slot 343. During insertion, the guide portion 7114 of the deformable portion 711 engages with the inclined surface of the limiting protrusion 344, causing the deformable portion 711 to deform away from the limiting protrusion 344 until the limiting protrusion 344 is inserted into the limiting slot 7113. The positioning slot 713 of the connecting portion 71 engages with the limiting rib 345, and the bent portion 7121 of the connecting portion 71 abuts against the two groove walls of the slot 343. The two auxiliary movable contact portions 72 of the auxiliary movable contact 70 are respectively located on both sides of the connecting portion 71.

[0110] The coil assembly 20 is placed in the second slot 115 and the signal terminal 01 of the coil assembly 20 passes through the second through slot 1122 . The installation order of the coil assembly 20 , the armature assembly 30 and the auxiliary static contact 60 can be adjusted as needed.

[0111] Then, the base 11 is inserted into the outer cover 12 along the Y-axis direction and fixed to the outer cover 12. It should be understood that in actual operation, the installation order of each part can be adjusted as needed, and this embodiment does not limit this.

[0112] After the installation is completed, the two auxiliary static contact parts 61 are respectively located on both sides of the auxiliary dynamic contact 70 along the X-axis direction; the connecting part 71 is centered on 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 on both 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 accommodating part 10 along the Y-axis direction.

[0113] The working process of this 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. Figure 4 , one of the first attracting parts 321 attracts the first magnetic driving end 242, and one of the second attracting parts 331 attracts the second magnetic driving end 243, pushing the card 80 to drive the moving contact 411 and the static contact 51 to close, and the two auxiliary moving contact parts 72 respectively contact 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, and another first attraction part 321 attracts the second magnetic drive end 243, pushing the card 80 to drive the moving contact 411 to be disconnected from the static contact 51, and the two auxiliary moving contact parts 72 respectively move away from the first auxiliary static contact part 63 and the second auxiliary static contact part 64, and the auxiliary monitoring part 300 is disconnected.

[0116] In this 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 static contacts 60 in series, and each auxiliary static contact 60 is provided with an auxiliary static contact portion 61 suitable for being abutted by the auxiliary moving contact 70 along the X-axis direction. The two auxiliary static 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 static contact portions 61 form The bridge structure extends along the Y-axis direction, wherein, as long as the auxiliary movable contact 70 has a certain length in the Y-axis direction and can follow the armature assembly 30, it can be connected in series with or disconnected from the two auxiliary static contact parts 61. Therefore, the length of the auxiliary movable contact 70 in the X-axis direction and the Z-axis direction can be set to be smaller. Since the two auxiliary static contact parts 61 are also arranged along the Y-axis direction, the entire auxiliary monitoring part 300 only needs to occupy a larger space in the Y-axis direction, and can occupy a smaller space in the X-axis direction. When the space on both sides of the armature assembly 30 is narrow, the auxiliary movable contact 70 can even be set to a sheet structure to make The auxiliary moving contact 70 occupies the smallest space in the X-axis direction, and because the two auxiliary static contact parts 61 are close to the armature assembly 30, the distance between the two auxiliary static contact parts 61 along the X-axis direction and the Y-axis direction is not too large, thereby further making the space occupied by the auxiliary monitoring part 300 in the Y-axis direction close to the space occupied by the armature assembly 30 in the Y-axis direction, and the space occupied in the X-axis direction can be smaller, so that the entire auxiliary monitoring part 300 can occupy a smaller size on both sides of the armature assembly 30, and the maximum size occupied by the auxiliary monitoring part 300 in the X-axis direction is only the gap between the auxiliary moving contact 70 and the auxiliary static contact 60. When open, the distance between the two is small, and the space occupied is small. Therefore, as long as the auxiliary monitoring part 300 can avoid the coil assembly 20 or the contact part 200 / push card 80, the auxiliary monitoring part 300 can be easily installed in the limited space on both sides of the armature assembly 30 without increasing the volume of the accommodating part 10 too much in the X-axis direction or even without increasing the volume of the accommodating part 10 in the X-axis direction; in addition, the auxiliary monitoring part 300 in the present technical solution occupies less space than the standard micro switch part, and the position of the terminal of the auxiliary monitoring part 300 can be adjusted as needed, and the structural design is simpler.

[0117] In this embodiment, the auxiliary moving contact 70 is fixed to the armature assembly 30 and the fixed position is located between the two auxiliary static contact parts 61 along the Y-axis direction; the two auxiliary static contact parts 61 are respectively located on both sides of the auxiliary moving contact 70 along the X-axis direction, so that when the auxiliary moving contact 70 is connected in series with the two auxiliary static contact parts 61, the resistance pressure with the two auxiliary static contact parts 61 can be more balanced, so that the auxiliary moving contact 70 can contact or disconnect with the two auxiliary static contact parts 61 at the same time. The two auxiliary static contact parts 61 are respectively located on both sides of the auxiliary moving contact 70 along the X-axis direction, and the two auxiliary static contact parts 61 are staggered from each other along the X-axis direction on the projection of the plane perpendicular to the Y-axis direction. Compared with the overlapping projections of the two auxiliary static contact parts 61 on the projection plane perpendicular to the Y-axis direction, the processing of the auxiliary moving contact 70 is simpler. After being set in this way, the two surfaces of the auxiliary moving contact 70 facing away from each other are respectively abutted against the two auxiliary static contact parts 61. Compared with the surface on the same side of the auxiliary moving contact 70 abutting against the two auxiliary static contact parts 61, the space in the thickness direction of the auxiliary moving contact 70 is better utilized, which is beneficial to reducing the space occupied by the auxiliary monitoring part 300 in the X-axis direction.

[0118] In this embodiment, the two auxiliary moving contact parts 72 are suitable for respectively contacting with the two auxiliary static contact parts 61, and their extension directions are parallel to the length direction of the armature assembly 30 or at a preset angle. Therefore, the auxiliary moving contact 70 occupies a smaller space in the thickness direction of the armature assembly 30, which is beneficial to reducing the space occupied by the auxiliary monitoring part 300 in the X-axis direction; in addition, this setting is also beneficial to the auxiliary moving contact 70 being made into a relatively flat structure in the X-axis direction, which is beneficial to reducing the space occupied by the auxiliary monitoring part 300 in the X-axis direction. It should be understood that in order to reduce the space occupied by the auxiliary monitoring part 300 in the X-axis direction, the spacing between the two auxiliary static contact parts 61 in the auxiliary monitoring part 300 along the X-axis direction should be reduced as much as possible. In this way, if the extension direction of the two auxiliary moving contact parts 72 is 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 parts 61 may be too small, which will cause the auxiliary moving contact 70 to deform more when it rotates with the armature 31 to abut against the two auxiliary static contact parts 61, and the stress it is subjected to is also greater, making it prone to fatigue damage or plastic deformation, affecting its service life. To this end, the extension direction of the two auxiliary moving contact parts 72 is set at a preset angle relative to the length direction of the armature assembly 30, so that in the disconnected state, the auxiliary moving contact 70 has a larger spacing along the X-axis direction than the corresponding two auxiliary static contact parts 61, thereby ensuring that the two auxiliary static contact parts 61 do not need to be spaced too far apart along the X-axis direction, and at the same time, the auxiliary moving contact 70 has a longer service life.

[0119] In this embodiment, the auxiliary moving contact 70 is fixedly connected to the first wall 342 in the thickness direction of the armature assembly 30, so that the space occupied by the auxiliary moving contact 70 in the Z-axis direction can be kept no larger than the space occupied by the armature assembly 30 in the Z-axis direction, thereby avoiding the setting of the auxiliary monitoring part 300 increasing the height of the relay in the Z-axis direction.

[0120] In this embodiment, the connecting portion 71 is located centrally on the first side wall 112 along the length direction of the armature assembly 30 , which can further reduce the space occupied by the auxiliary movable contact 70 in the Y-axis direction.

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

[0122] In this embodiment, the auxiliary static contact portion 61 extends along the Z-axis, and each auxiliary movable contact portion 72 is provided with at least two contact branches 721 spaced apart along the Z-axis. Each contact branch 721 is adapted to contact or separate from the corresponding auxiliary static contact 60. This allows the current flowing through the auxiliary movable contact 70 to be split into multiple paths when the auxiliary movable contact 70 contacts the auxiliary static contact portion 61, thereby reducing the resistance of the movable contact 40 and improving the overall current-carrying capacity. This arrangement also facilitates 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 connection reliability.

[0123] In this embodiment, each contact branch 721 is suitable for deformation along the X-axis direction, and the force along the X-axis transmitted to the auxiliary moving contact part 72 by the armature assembly 30 is relatively large, which can give the auxiliary moving contact part 72 and the auxiliary contact part a certain contact pressure. In other words, by designing the position of the auxiliary static contact 60, when the armature assembly 30 is rotated into place, the auxiliary moving contact part 72 abuts against the auxiliary contact part, causing the auxiliary moving contact part 70 to form an appropriate deformation, which is conducive to obtaining a more stable contact relationship after conduction and higher connection reliability.

[0124] In this embodiment, in the magnetic holding state, each of the two armatures 31 has an engaging portion that engages the corresponding magnetic drive end 241 to form a closed magnetic circuit passing through the two magnetic drive ends 241. This closed magnetic circuit runs from one magnetic pole of the permanent magnet through one engaging portion, one magnetic drive end 241, the iron core 23, the other magnetic drive end 241, and the other engaging portion, returning to the other magnetic pole of the permanent magnet. Compared with a closed magnetic circuit passing through only one magnetic drive end 241, the closed magnetic circuit of this technical solution has a greater magnetic attraction force and a more stable magnetic circuit. The permanent magnet can also keep the engaging portion and the magnetic drive end 241 engaged when the coil assembly 20 is powered off. The auxiliary dynamic contact 70 is fixedly connected to the insulating member 34, which is convenient for processing and prevents the auxiliary monitoring part 300 from affecting the magnetic effect on the armature 31 when current is flowing. The rotation axis is centered along the length direction of the armature assembly 30, which makes it easier for the force arms of the two engaging portions of each armature 31 to be consistent, which is more conducive to improving connection reliability.

[0125] In this embodiment, the first auxiliary static contact portion 63 is located on one side of the second armature 33 along the Y-axis direction, and its projection on the projection plane perpendicular to the X-direction does not overlap 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 its projection on the projection plane perpendicular to the X-direction overlaps with the projection of the second armature 33. On the one hand, it is beneficial to reduce the distance between the two auxiliary static contact portions 61 in the Y-axis direction, and on the other hand, it is beneficial to achieve inconsistent distances between the two auxiliary static contact portions 61 and the first plane. Compared with the solution in which the distances between the two auxiliary static contact portions 61 and the first plane are consistent, when the rotation angle of the auxiliary dynamic contact 70 is constant, 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 space occupied by the auxiliary monitoring portion 300 in the X-axis direction. Therefore, the above arrangement further reduces the space occupied by the auxiliary monitoring portion 300 in the X-axis direction.

[0126] In this embodiment, the extension direction of the two auxiliary movable contact portions 72 is inclined in a direction gradually approaching the first armature 32 along the X-axis from the first auxiliary static contact portion 63 to the second auxiliary static contact portion along the Y-axis direction. This facilitates the formation of a larger gap between the auxiliary movable contact 70 and both the first auxiliary static contact portion 63 and the second auxiliary static contact portion 64 when disconnected. Furthermore, as described above, the line connecting the two auxiliary movable contact portions 72 is arranged at a predetermined angle with the length direction of the armature assembly 30. This allows the auxiliary movable contact 70 to have a larger spacing along the X-axis direction than the corresponding two auxiliary static contact portions 61 when disconnected. This not only ensures that the two auxiliary static contact portions 61 do not need to be separated by a large distance along the X-axis direction, but also extends the service life of the auxiliary movable contact 70.

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

[0128] In this embodiment, the rotation axis is closer to the side of the first armature 32 along the thickness direction of the armature assembly 30, and the length of the first armature 32 is greater than that of the second armature 33. This, on the one hand, helps to compensate for the discrepancy in the rotation ranges of the first and second armatures 32, 33 caused by the eccentric placement of the rotation axis along the thickness direction of the armature assembly 30, thereby ensuring the abutment between the attracting portions of the first and second armatures 32, 33 and the magnetic drive end 241, and the consistency of the magnetic flux areas. On the other hand, the auxiliary movable contact 70 is fixed to the side of the insulating member 34 near the second armature 33, so that the two auxiliary static contact portions 61 do not need to be too far apart in the Y-axis direction to avoid the armature assembly 30, thereby reducing the space occupied by the auxiliary monitoring portion 300 in the Y-axis direction. The first auxiliary static contact portion 63 is located on the side of the second armature 33 along the Y-axis, and also fully utilizes the space on the side of the second armature 33 along the Y-axis due to its shorter size than the first armature 32.

[0129] In this embodiment, a slot 343 opening along the Z-axis direction is provided on one side of the insulating part 34 along the X-axis direction. The connecting part 71 is limitedly matched with the slot 343 and an anti-slip structure is formed between the two. Compared with other fixing methods such as gluing, welding or screwing, the production process is reduced and the production efficiency is higher; compared with methods such as only snap-on connection, the limited cooperation between the slot 343 and the connecting part 71 is more stable; the anti-slip structure is formed between the connecting part 71 and the slot 343, which further improves the stability of the structure after the auxiliary dynamic contact 70 is connected to the insulating part 34.

[0130] In this embodiment, the slot 343 extends along the length direction of the armature assembly 30 and passes through at both ends. The two ends of the auxiliary dynamic contact 70 respectively extend out of the slot 343 to form an auxiliary dynamic contact portion 72 suitable for contacting the auxiliary static contact portion 61. Compared with the solution in which the two ends of the auxiliary dynamic contact 70 do not directly pass through the slot 343, the auxiliary monitoring part 300 occupies less space in the X-axis direction.

[0131] In this embodiment, the setting of the bending portion 7121 not only realizes the limited cooperation with the slot 343 along the width direction of the slot 343 with a simple structure, but also facilitates the deformation of the auxiliary dynamic contact 70, making the on and off of the auxiliary monitoring part 300 more reliable, and is also conducive to making the structural stability of the part of the connecting part 71 other than the bending portion 7121 better, and ensuring the connection stability with the insulating part 34.

[0132] In this embodiment, the two bent portions 7121 are located near the two ends of the slot 343 in the longitudinal direction. On the one hand, the connection portion 71 and the slot 343 form a limited fit along the width direction of the slot 343, thereby improving the stability of the auxiliary movable contact 70 on the armature assembly 30. On the other hand, the two bent portions 7121 can serve as two deformation fulcrums for the two auxiliary movable contact portions 72, making the switching of the auxiliary monitoring part 300 more reliable. It also helps to improve the structural stability of the connection portion 71 other than the bent portions 7121 and ensure the stability of the connection with the insulating member 34.

[0133] In this embodiment, the anti-slip structure includes a limiting groove 7113 and a limiting protrusion 344 cooperating with the limiting groove 7113; one of the limiting protrusion 344 and the limiting groove 7113 is arranged on the groove wall of the slot 343, and the other is arranged on the connecting part 71. The structure is simple and easy to process, and the resistance is small during insertion.

[0134] In this embodiment, the connecting portion 71 is provided with a deformation portion 711, and a limiting groove 7113 is provided on the deformation portion 711. When the connecting portion 71 is inserted into the slot 343, the deformation portion 711 is deformed so that the limiting groove 7113 forms a limiting fit with the limiting portion, and the insertion of the connecting portion 71 is more labor-saving.

[0135] In this embodiment, a guide portion is provided at the bottom of the deformation portion 711 facing the slot 343, which cooperates with the inclined surface of the limiting protrusion 344 to deform the deformation portion 711 away from the limiting protrusion 344, so that the deformation portion 711 is deformed during the process of inserting into the slot 343 and is not easy to interfere with the limiting protrusion 344. The guide portion can also guide the deformation portion 711 during the process of inserting the deformation portion 711 into the slot 343, making the insertion more labor-saving. After being inserted into place, the deformation portion 711 resumes its deformation.

[0136] In this embodiment, the plug-in cooperation of the limiting rib 345 and the positioning groove 713 is conducive to achieving the limitation of the connecting portion 71 and the slot 343 in the length direction of the slot 343 and limiting the rotation of the connecting portion 71 relative to the insulating part 34 around the axis parallel to the thickness direction of the armature assembly 30, thereby further making the connection between the auxiliary dynamic contact 70 and the insulating part 34 more stable; wherein the positioning groove 713 is formed between the main body 712 and the deformation part 711. Due to the deformation of the deformation part 711 during the insertion process, the groove wall of the positioning groove 713 first moves away from the limiting rib 345, so that the friction between the limiting rib 345 and the positioning groove 713 is reduced, and it is more labor-saving when plugging in. After being plugged in place, the limiting rib 345 is plugged in and cooperates with the positioning groove 713 to limit the connecting portion 71.

[0137] In this embodiment, the limiting rib 345 and the positioning groove 713 are interference fit, which not only realizes the limiting fit of the connecting part 71 and the slot 343 along the extension direction of the slot 343, but also realizes the anti-rotation fit of the connecting part 71 and the slot 343 around the axis parallel to the X-axis direction. Therefore, after the connecting part 71 and the slot 343 are plugged into place, the auxiliary dynamic contact 70 is fixed on the insulating part 34 without the need to adopt other fixing methods. The connection structure is simple and easy to assemble.

[0138] In this embodiment, due to the interference fit between the limiting rib 345 and the positioning groove 713, the second deformation portion 7112 may get stuck and cannot be reliably reset. The first deformation portion 7111 is further away from the bottom of the slot 343, so that the deformation can still be reliably restored when the second deformation portion 7112 gets stuck, thereby ensuring that the limiting groove 7113 and the limiting protrusion 344 are reliably plugged in and fit together.

[0139] In this 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 contacts 60 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 along the X-axis direction is shorter, so that the auxiliary moving contact 70 can occupy 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 this embodiment, the auxiliary dynamic contact 70 is fixed to the side of the insulating part 34 close to the coil winding 22, and the contact part 200 and the coil winding 22 are respectively located on both sides of the first plane along the X-axis direction, so that the contact part 200 and the coil winding 22 and the auxiliary monitoring part 300 are far away from each other in the X-axis direction, so that 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 maintained in a larger range, thereby improving the electrical isolation problem and facilitating the isolation of the strong and weak-current terminals.

[0141] In this embodiment, the connection terminal 02 , the signal terminal 01 and the lead terminal 03 all extend out of the same side of the accommodation component 10 along the Y-axis direction, which facilitates the connection of the relay to the PCB board along the Y-axis direction.

[0142] In this embodiment, the accommodating member 10 is provided with a bottom wall 111 for supporting the coil assembly 20; each auxiliary static contact 60 is also provided with a fixing portion 62 connected to the auxiliary static contact portion 61 as a whole, and the fixing portion 62 extends along the Y-axis direction and is provided with a lead terminal 03; the fixing portion 62 is fixedly connected to the bottom wall 111 of the accommodating member 10, which on the one hand makes the structure of the auxiliary static contact 60 simple and easy to process, and on the other hand, makes it difficult for the lead terminal 03 to avoid the armature assembly 30 or the coil assembly 20 without bending, thereby improving the service life of the auxiliary static contact 60.

[0143] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A relay comprising a magnetic circuit portion (100) and an auxiliary monitoring portion (300), wherein the magnetic circuit portion (100) comprises a coil assembly (20) and an armature assembly (30) arranged on one side of the coil assembly (20) along the X-axis direction, wherein the coil assembly (20) is provided with a magnetic drive end (241), and the armature assembly (30) rotates around a rotation axis extending along the Z-axis direction in response to a change in polarity of the magnetic drive end (241); Its characteristics are: The auxiliary monitoring part (300) includes 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) in series. Each auxiliary static contact piece (60) is provided with an auxiliary static contact portion (61) adapted to be abutted by the auxiliary dynamic contact piece (70) along the X-axis direction. The two auxiliary static 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).

2. A relay as claimed in claim 1, characterized in that: The auxiliary moving contact (70) is fixedly connected to the armature assembly (30), and the fixed position is located between the two auxiliary static contact parts (61) along the Y-axis direction; the two auxiliary static contact parts (61) are respectively located on both sides of the auxiliary moving contact (70) along the X-axis direction.

3. A relay as claimed in claim 2, characterized in that: Auxiliary moving contact portions (72) extend from both sides of the position where the auxiliary moving contact (70) is fixed to the armature assembly (30); the two auxiliary moving contact portions (72) are suitable for respectively contacting the two auxiliary static contact portions (61), and their extending directions are parallel to the length direction of the armature assembly (30) or at a preset angle.

4. A relay as claimed in claim 3, characterized in that: The auxiliary movable contact (70) is further provided with a connecting portion (71) fixedly connected to the first wall (342) in the thickness direction of the armature assembly (30).

5. A relay as claimed in claim 4, characterized in that: The connecting portion (71) is located centrally on the first wall (342) along the length direction of the armature assembly (30).

6. A relay as claimed in claim 5, characterized in that: The auxiliary movable contact (70) is a sheet-like structure, and its thickness direction is consistent with the thickness direction of the armature assembly (30).

7. A relay as claimed in claim 5, characterized in that: Each auxiliary moving contact portion (72) is provided with at least two contact branches (721) spaced apart along the Z-axis direction, and each contact branch (721) is suitable for contacting or separating from the corresponding auxiliary static contact piece (60).

8. A relay as claimed in claim 7, characterized in that: Each of the contact branches (721) is suitable for deformation along the X-axis direction.

9. A relay as claimed in claim 5, characterized in that: The magnetic circuit part (100) has a magnetic holding function; The coil assembly (20) is provided with two magnetic drive ends (241) arranged along the Y-axis direction; The armature assembly (30) comprises a permanent magnet, two armatures (31) and an insulating member (34). 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 drive end (241). When the magnetic circuit part (100) is in a magnetic holding state, the two armatures (31) each have an attracting part that attracts the corresponding magnetic drive end (241) to form a closed magnetic circuit passing through the two magnetic drive ends (241); the insulating member (34) is fixed to the permanent magnet; the auxiliary moving contact (70) is fixed to the insulating member (34); and the rotation axis is centrally arranged along the length direction of the armature assembly (30).

10. A relay as claimed in claim 9, characterized in that: The two armatures (31) are respectively a first armature (32) and a second armature (33); the auxiliary moving contact (70) is fixed to a side of the insulating member (34) close to the second armature (33); the two auxiliary static contact parts (61) are respectively a first auxiliary static contact part (63) and a second auxiliary static contact part (64); the first auxiliary static contact part (63) is located on a side of the second armature (33) along the Y-axis direction, and its projection on a projection plane perpendicular to the X-direction does not coincide with the projection of the second armature (33); the second auxiliary static contact part (64) is located on a side of the second armature (33) away from the first armature (32), and its projection on a projection plane perpendicular to the X-direction coincides with the projection of the second armature (33); the distances between the first auxiliary static contact part (63) and the second auxiliary static contact part (64) and a first plane are inconsistent, and the first plane is perpendicular to the Y-axis direction and passes through the rotation axis.

11. A relay as claimed in claim 10, characterized in that: In the direction from the first auxiliary static contact portion (63) to the second auxiliary static contact portion (64) along the Y-axis, the extension directions of the two auxiliary movable contact portions (72) are inclined toward a direction gradually approaching the first armature (32) along the X-axis.

12. A relay as claimed in claim 11, characterized in that: The included angle between the extension direction of the two auxiliary moving contact parts (72) and the length direction of the armature assembly (30) is less than 20°.

13. A relay as claimed in claim 11, characterized in that: 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. A relay as claimed in claim 9, characterized in that: A slot (343) opening in the Z-axis direction is provided on one side of the insulating member (34) in the X-axis direction, and the connecting portion (71) is positionally matched with the slot (343) to form an anti-slip structure therebetween.

15. A relay as claimed in claim 14, characterized in that: The slot (343) extends along the length direction of the armature assembly (30) and is penetrated at both ends. Both ends of the auxiliary movable contact (70) extend out of the slot (343) to form an auxiliary movable contact portion (72) suitable for contacting the auxiliary static contact portion (61).

16. A relay as claimed in claim 15, characterized in that: The connecting portion (71) is provided with a bending portion (7121), and the bending portion (7121) is limitedly engaged with the slot (343) along the width direction of the slot (343).

17. A relay as claimed in claim 16, characterized in that: There are two bending portions (7121), and the two bending portions (7121) are respectively close to the two ends of the slot (343) in the length direction.

18. A relay as claimed in claim 14, characterized in that: The anti-slip structure comprises a limiting groove (7113) and a limiting protrusion (344) cooperating with the limiting groove (7113); one of the limiting protrusion (344) and the limiting groove (7113) is arranged on the groove wall of the slot (343), and the other is arranged on the connecting portion (71).

19. A relay as claimed in claim 18, characterized in that: The limiting protrusion (344) is provided on the groove wall of the slot (343); the connecting portion (71) is provided with a deformation portion (711), and the limiting groove (7113) is provided on the deformation portion (711).

20. A relay as claimed in claim 19, characterized in that: The bottom of the deformable portion (711) facing the slot (343) is provided with a guide portion (7114) that cooperates with the inclined surface of the limiting protrusion (344) to deform the deformable portion (711) away from the limiting protrusion (344).

21. A relay as claimed in claim 20, characterized in that: A limiting rib (345) extending along the Z-axis direction is protruded from the slot (343); the connecting portion (71) is further provided with a positioning groove (713) pluggably engaged with the limiting rib (345); the connecting portion (71) is further provided with a body (712) integrally connected to the deformable portion (711); the positioning groove (713) is formed between the body (712) and the deformable portion (711).

22. A relay as claimed in claim 21, characterized in that: The limiting rib (345) is interference-fitted with the positioning groove (713).

23. A relay as claimed in claim 22, characterized in that: The deformable portion (711) includes a first deformable portion (7111) and a second deformable portion (7112); the second deformable portion (7112) is closer to the bottom of the slot (343) than the first deformable portion (7111) and is provided with the guide portion (7114); the first deformable portion (7111) is provided with the limiting groove (7113); and the positioning groove (713) is formed between the main body (712) and the second deformable portion (7112).

24. A relay according to any one of claims 1 to 23, characterized in that: The coil assembly (20) is provided with a coil winding (22) extending in the Y-axis direction and two yokes (24) arranged in the Y-axis direction; the magnetic drive end (241) is formed on the yoke (24) and extends in a direction perpendicular to the X-axis; the rotation axis and the coil winding (22) are arranged at intervals in the X-axis direction; and the two auxiliary static contact parts (61) are located in an area enclosed by the coil winding (22) and the two yokes (24).

25. A relay as claimed in claim 24, characterized in that: The invention also includes an accommodating member (10) and a contact portion (200); the coil winding (22) is fixedly connected to the accommodating member (10); the auxiliary movable contact (70) is fixedly connected to a side of the insulating member (34) close to the coil winding (22); the contact portion (200) and the coil winding (22) are respectively located on both sides of a second plane along the X-axis direction, and the second plane is perpendicular to the X-axis direction and passes through the rotation axis; the contact portion (200) includes a movable contact (40) and a static contact (50), and the movable contact (40) is suitable for being driven by the armature assembly (30) to close or open with the static contact (50).

26. A relay as claimed in claim 25, characterized in that: The contact portion (200) is provided with a connection terminal (02), the coil assembly (20) is provided with a signal terminal (01), and the auxiliary monitoring portion (300) is provided with a lead-out terminal (03), wherein the connection terminal (02), the signal terminal (01) and the lead-out terminal (03) all extend out of the same side of the accommodating component (10) along the Y-axis direction.

27. A relay as claimed in claim 26, characterized in that: The accommodating member (10) is provided with a bottom wall (111) supporting the coil assembly (20); each of the auxiliary static contact members (60) is further provided with a fixing portion (62) integrally connected to the auxiliary static contact portion (61), the fixing portion (62) extending along the Y-axis direction and provided with the lead-out terminal (03); the fixing portion (62) is fixedly connected to the bottom wall (111) of the accommodating member (10).

Images