A solenoid through-type relay

Abstract

The present invention relates to the technical field of relays, and particularly relates to a solenoid direct-through relay, a base, and a magnetic circuit component, a contact component, and a push card disposed on the base. The magnetic circuit component controls the contact or separation of the contacts of the contact component through the push card; the magnetic circuit component includes a bobbin and an iron core. The bobbin is provided with a through hole in the direction of contact separation of the contacts for one end of the push card to enter. A coil is wound around the bobbin to form a magnetic control loop. The iron core is connected to the push card to form an iron core component and can move linearly within the bobbin. The iron core component and the through hole of the bobbin cooperate to form a circumferential anti-rotation structure; wherein the iron core is sheet-shaped, and at least one connection position is provided on one side in the thickness direction of the iron core and one side of the push card to realize the cooperation between the side surface of the iron core and the side surface of the push card, thereby realizing the reciprocating movement of the iron core driving the push card. The iron core of the present invention has low processing difficulty, and the assembly process with the push card is simpler and faster, while ensuring the stability of the overall linear movement of the formed iron core component within the bobbin.

Description

Technical Field

[0001] The present invention relates to the technical field of relays, and particularly to a solenoid direct-through relay. Background Art

[0002] In the current magnetic latching relay, the iron core component 1' is formed by connecting an iron core 11' and a push card 12'. There are two connection schemes. One is as shown in Figure 1-2 As shown, the iron core 11' of the general iron core component 1' is a cylindrical iron core 11'. One end of the cylindrical iron core 11' is connected to the threaded push card 12' through a formed rotating hole and thread. The iron core component 1' formed by this scheme has complex processing, many processes, and high costs. Moreover, the friction area position of the relative movement between the cylindrical iron core 11' and the bobbin is uncontrollable and prone to deviation. When made into a magnetic latching structure, the magnetic circuit of the permanent magnet and the cylindrical iron core 11' is the cooperation between the magnetic pole plane of the permanent magnet and the arc of the cylindrical iron core 11', and the cooperation magnetic resistance is relatively large. Another is as shown in Figure 3-5 As shown, the iron core 11' of the iron core component 1' is a sheet iron core 11'. By making one end of it into a non-closed ring-shaped through hole, the end of the push card 12' forms a convex block to cooperate with the ring-shaped through hole to form the iron core component 1'. In this scheme, only one end of the sheet iron core 11' is connected to the push card 12', and the other end is not connected, which is prone to shaking and poor stability. Moreover, there will also be a certain space gap at the connection between the sheet iron core 11' and the push card 12', which is prone to relative rotation and poor stability and reliability. Summary of the Invention

[0003] The present invention aims to provide a solenoid direct-through relay, so that the side and the main body of the iron core can be stably connected to the push card, and the iron core component can be conveniently assembled, with high structural strength and low cost, and further realize that the friction area and the movement direction of the relative movement between the iron core component and the bobbin are controllable and stable.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A solenoid direct-through relay, comprising

[0006] a base, and a magnetic circuit component, a contact component and a push card arranged on the base. The magnetic circuit component controls the contact or separation of the contacts of the contact component through the push card;

[0007] The magnetic circuit component includes a bobbin, a yoke and an iron core. The bobbin is provided with a through hole in the direction of contact separation of the contacts for one end of the push card to enter. A coil is wound around the bobbin to form a magnetic control circuit. The iron core is connected to the push card to form an iron core component and can move linearly within the bobbin. The iron core component and the through hole of the bobbin cooperate to form a circumferential anti-rotation structure;

[0008] The iron core is sheet-shaped, and there is at least one connection position on one side in the thickness direction of the iron core and on one side of the push card, so as to realize the cooperation between the side surface of the iron core and the side surface of the push card, and further realize the reciprocating movement of the push card driven by the iron core.

[0009] Preferably, there are at least two connection positions between the iron core and the push card. One of the connection positions is formed by the cooperation of a convex part and a concave part on one side in the thickness direction of the iron core and on one side of the push card.

[0010] Preferably, the at least one connection position is formed by the cooperation of a convex part and a concave part with a polygon.

[0011] Preferably, both the iron core component and the through hole have edges and corners to form a circumferential anti-rotation structure by the cooperation of the iron core component and the through hole.

[0012] Preferably, a convex part or a sliding groove is provided on the outside of the iron core component, and a sliding groove or a convex rib is provided inside the wire frame. The convex part of the iron core component corresponds to the sliding groove of the wire frame, or the sliding groove of the iron core component corresponds to the convex rib of the wire frame for corresponding cooperation and limitation, so as to realize that the sliding friction area and the movement direction of the iron core component and the wire frame are controllable and prevent the iron core from rotating.

[0013] Preferably, one or two permanent magnets are arranged on both sides of the wire frame in the movement direction of the iron core component. A magnetic yoke iron is provided outside the wire frame and the permanent magnets to form a magnetic holding magnetic circuit structure. The cross section of the permanent magnet corresponds to the width of the iron core, and the magnetic field direction of the permanent magnet is perpendicular to the width surface of the iron core.

[0014] Preferably, the end of the push card away from the iron core is a push trigger part for controlling the contact or separation of the contact of the contact component, and a manual switch is also arranged on the push trigger part.

[0015] Preferably, a through hole is formed on the magnetic yoke iron, a micro switch reed is arranged at one end of the base away from the contact component, and a micro trigger part protruding through the through hole of the magnetic yoke iron is arranged at one end of the push card close to the micro switch reed, so as to control the contact or separation of the contact of the micro switch reed by driving the micro trigger part with the push card.

[0016] Preferably, the iron core is at least one sheet-shaped iron core. The sheet-shaped iron core and the push card form an iron core component through convex-concave cooperation. There is a convex part on the outside of the iron core component and a sliding groove inside the wire frame. The convex part on the outside of the iron core component cooperates with the sliding groove of the wire frame to form clearance limitation.

[0017] Preferably, the iron core is at least one sheet-shaped U-shaped iron core. The sheet-shaped U-shaped iron core and the push card form an iron core component through at least one convex-concave cooperation.

[0018] Preferably, the two sides in the width direction of the sheet-shaped U-shaped iron core have bending parts, and the bending parts can clamp the push card for cooperation and limitation to form a connection position.

[0019] Preferably, the iron core is a sheet iron core with convex buds or grooves on its inner side, sliding convex buds on its outer side, grooves or convex buds on one side of the pushing card, and convex buds on the other side of the pushing card. The convex buds on the inner side of the sheet iron core are assembled with the grooves on one side of the pushing card, or the grooves on the inner side of the sheet iron core are assembled with the convex buds on one side of the pushing card to form an iron core component. There are sliding grooves on both sides inside the wire frame, and the sliding convex buds on the outer side of the sheet iron core and the convex buds on the other side of the pushing card in the iron core component respectively cooperate with the sliding grooves of the wire frame to form clearance limits.

[0020] Preferably, the sheet iron core is a sheet U-shaped iron core, or a sheet L-shaped iron core, or a flat iron core.

[0021] Preferably, the iron core is two sheet iron cores with convex buds or grooves on their inner sides, sliding convex buds on their outer sides, convex buds or grooves on both sides of the pushing card. The convex buds on the inner sides of the two sheet iron cores are assembled with the grooves on both sides of the pushing card, or the grooves on the inner sides of the two sheet iron cores are assembled with the convex buds on both sides of the pushing card to form an iron core component. There are sliding grooves on both sides inside the wire frame, and the sliding convex buds on the outer sides of the two sheet iron cores in the iron core component respectively cooperate with the sliding grooves of the wire frame for clearance limiting.

[0022] Preferably, the two sheet iron cores are two sheet U-shaped iron cores, or two sheet L-shaped iron cores, or two flat iron cores, or one flat iron core and one sheet U-shaped iron core, or one flat iron core and one sheet L-shaped iron core.

[0023] The present invention has the following beneficial effects:

[0024] (1) By providing at least one connection position on one side in the thickness direction of the sheet iron core and one side of the pushing card, the cooperation between the side surface of the iron core and the side surface of the pushing card is realized, and then the iron core drives the pushing card to move back and forth, which can achieve integral pushing. Moreover, the assembly direction of the iron core and the pushing card is perpendicular to their movement direction, ensuring the stable and reliable movement process, avoiding the rotation of the iron core. And since the iron core is sheet-shaped, combined with the structural setting of its connection position, the iron core has low processing difficulty, fewer processes, lower cost, and the assembly process with the pushing card is more simple and fast. At the same time, the stability of the overall iron core component moving linearly in the wire frame is ensured.

[0025] (2) Both the iron core component and the through hole have edges and corners to form a circumferential anti-rotation structure by the cooperation of the iron core component and the through hole. And there are convex parts or sliding grooves on the outer side of the iron core component, and there are sliding grooves or convex ribs in the wire frame. The convex parts of the iron core component cooperate with the sliding grooves of the wire frame, or the sliding grooves of the iron core component cooperate with the convex ribs of the wire frame for corresponding limiting, realizing that the sliding friction area and movement direction of the iron core component and the wire frame are controllable and preventing the rotation of the iron core.

[0026] (3) The two sides of the sheet-shaped U-shaped iron core in the width direction have bending parts, and the bending parts can clamp the pushing card for cooperation and limit to form a connection position, further strengthening the connection stability between the sheet-shaped U-shaped iron core and the pushing card and preventing the iron core from rotating.

[0027] (4) One or two permanent magnets are arranged on both sides of the iron core component in the moving direction inside the wire frame. A magnetic circuit structure for magnetic holding is formed by the wire frame and the permanent magnet with a yoke iron outside. The cross-section of the permanent magnet corresponds to the width of the iron core, and the magnetic field direction of the permanent magnet is perpendicular to the width surface of the iron core, so that the relative area of the fitting surface between the permanent magnet and the iron core is larger, the gap distance is smaller and uniform, the magnetic resistance is small, and the magnetic utilization rate of the permanent magnet is high, ensuring that the driving effect of the magnetic field on the iron core component is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an exploded schematic view of a cylindrical iron core component in the prior art.

[0029] Figure 2 is a schematic view of a relay containing a cylindrical iron core component in the prior art.

[0030] Figure 3 is an exploded schematic view of a square iron core component in the prior art.

[0031] Figure 4 is a side view of the iron core of a square iron core component in the prior art.

[0032] Figure 5 is a schematic view of a relay containing a square iron core component in the prior art.

[0033] Figure 6 is a schematic view of the relay structure in Embodiment 1 of the present invention.

[0034] Figure 7 is a schematic view of the contact component in the contact separation state in Embodiment 1 of the present invention.

[0035] Figure 8 is a schematic view of the contact component in the contact state in Embodiment 1 of the present invention.

[0036] Figure 9 is an exploded schematic view of the iron core component in Embodiment 1 of the present invention.

[0037] Figure 10 is a combined schematic view of the iron core component in Embodiment 1 of the present invention.

[0038] Figure 11 is a schematic view of the wire frame in Embodiment 1 of the present invention.

[0039] Figure 12 is a side view of the iron core component in Embodiment 1 of the present invention.

[0040] Figure 13 It is a side view of the U-shaped iron core in Embodiment 1 of the present invention.

[0041] Figure 14 It is a schematic diagram of the toroidal yoke iron in Embodiment 1 of the present invention.

[0042] Figure 15 It is a schematic assembly diagram of the iron core, the pushing card and the bobbin in Embodiment 1 of the present invention.

[0043] Figure 16 It is a schematic assembly diagram of the toroidal yoke iron, the iron core, the pushing card and the bobbin in Embodiment 1 of the present invention.

[0044] Figure 17 It is a side view in Embodiment 1 of the present invention.

[0045] Figure 18 It is an exploded schematic diagram of the iron core component in Embodiment 2 of the present invention.

[0046] Figure 19 It is a combined schematic diagram of the iron core component in Embodiment 2 of the present invention.

[0047] Figure 20 It is an exploded schematic diagram of the iron core component in Embodiment 3 of the present invention.

[0048] Figure 21 It is a combined schematic diagram of the iron core component in Embodiment 3 of the present invention.

[0049] Figure 22 It is Figure 21 a side view of the planar iron core in

[0050] Figure 23 It is an exploded schematic diagram of the iron core component in Embodiment 4 of the present invention.

[0051] Figure 24 It is a combined schematic diagram of the iron core component in Embodiment 4 of the present invention.

[0052] Figure 25 It is Figure 24 a side view of the iron core component in

[0053] Figure 26 It is an exploded schematic diagram of the iron core component in Embodiment 5 of the present invention.

[0054] Figure 27 It is a combined schematic diagram of the iron core component in Embodiment 5 of the present invention.

[0055] Figure 28 It is Figure 27 a side view of the iron core component in

[0056] Figure 29 is Figure 27 The side view of the U-shaped iron core in

[0057] Figure 30 is the exploded schematic view of the iron core component in Embodiment 6 of the present invention.

[0058] Figure 31 is the schematic view of the wire holder in Embodiment 6 of the present invention.

[0059] Figure 32 is the side view in Embodiment 6 of the present invention.

[0060] Figure 33 is the schematic view of Embodiment 6 of the present invention at an angle.

[0061] Figure 34 is the side view of the micro trigger part and the micro switch reed in the initial state in Embodiment 1 of the present invention.

[0062] Figure 35 is Figure 34 The enlarged schematic view at position A in

[0063] Figure 36 is the schematic view of the action of the micro trigger part and the micro switch reed in Embodiment 1 of the present invention.

[0064] Figure 37 is Figure 36 The enlarged schematic view at position B in

[0065] Figure 38 is the schematic view of the micro trigger part and the micro switch reed in the initial state in Embodiment 7 of the present invention.

[0066] Figure 39 is Figure 38 The enlarged schematic view at position C in

[0067] Figure 40 is the exploded schematic view of the iron core component in Embodiment 8 of the present invention.

[0068] Figure 41 is the combined schematic view of the iron core component in Embodiment 8 of the present invention.

[0069] Figure 42 is Figure 40 The side view of the planar iron core in

[0070] Figure 43 is the exploded schematic view of the iron core component in Embodiment 9 of the present invention.

[0071] Figure 44 is the combined schematic view of the iron core component in Embodiment 9 of the present invention.

[0072] Prior art attached figure annotation:

[0073] 1' iron core component, 11' iron core, 12' push card.

[0074] Reference signs in the drawings of the present invention:

[0075] 1. Iron core component; 11. Iron core; 12. Push card; 121. Push trigger part; 122. Micro motion trigger part; 123. Manual switch; 2. Base; 3. Magnetic circuit component; 31. Bobbin; 32. Yoke iron; 321. U-shaped yoke iron; 322. Flat yoke iron; 33. Permanent magnet; 4. Contact component; 5. Micro switch reed; 51. Micro switch static reed; 52. Micro switch moving reed; 6. Rib; 7. Convex bump; 8. Groove; 9. Slide groove; 10. Sliding convex bump. Detailed implementation manners

[0076] To further illustrate the embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0077] For the convenience of description, as shown by the coordinate axes in Figure 21 , the directions of the a, b, and c axes are defined as the length direction, width direction, and thickness direction of the iron core respectively. And the side of the iron core in the iron core component facing the push card in the thickness direction is the inner side, and the side away from the push card is the outer side.

[0078] Embodiment 1

[0079] Referring to Figure 6-17 , a solenoid direct-acting relay is provided, including: a base 2, and a magnetic circuit component 3, a contact component 4, and a push card 12 arranged on the base 2. The magnetic circuit component 3 controls the contact or separation of the contacts of the contact component 4 through the push card 12;

[0080] The magnetic circuit component 3 includes a bobbin 31, a yoke iron, and an iron core 11. The bobbin 31 is provided with a through hole in the direction of contact separation of the contacts for one end of the push card 12 to enter. A coil is wound around the bobbin 31 to form a magnetic control loop. The iron core 11 is connected to the push card 12 to form an iron core component 1 and can move linearly within the bobbin 31. The iron core component 1 and the through hole of the bobbin 31 cooperate to form a circumferential anti-rotation structure;

[0081] Wherein the iron core 11 is sheet-shaped, and there is at least one connection position on one side in the thickness direction of the iron core 11 and one side of the push card 12 to realize the cooperation between the side surface of the iron core 11 and the side surface of the push card 12, so as to realize the reciprocating movement of the iron core 11 driving the push card 12.

[0082] In the above technical solution, at least one connecting position is provided on one side in the thickness direction of the iron core 11 and on one side of the pushing card 12, so as to realize the fitting connection between the side surface of the iron core 11 and the side surface of the pushing card 12, so that the main body of the iron core 11 is connected to the pushing card 12, and integrated pushing can be realized. Moreover, the assembly direction of the iron core 11 and the pushing card 12 is perpendicular to their movement direction, ensuring stable and reliable movement during the process, preventing the iron core 11 from rotating. The iron core 11 is sheet-shaped. Considering the structural setting of its connecting position, compared with the traditional solenoid direct-through magnetic circuit structure, the processing of the iron core 11 is easier, the number of processes is less, the cost is lower, the assembly process with the pushing card 12 is more convenient and faster, and at the same time, the stability of the formed iron core component 1 moving linearly in the wire frame 31 is ensured.

[0083] Referring to Figure 6-8 As shown, two permanent magnets 33 are arranged on both sides of the wire frame 31 in the movement direction of the iron core component 1. An annular yoke iron 32 is arranged outside the wire frame 31 and the permanent magnets 33 to form a magnetic circuit structure for magnetic holding. The cross-section of the permanent magnet 33 corresponds to the width of the iron core 11, and the magnetic field direction of the permanent magnet 33 is perpendicular to the width surface of the iron core 11.

[0084] In the above technical solution, the relative area between the fitting surfaces of the permanent magnet 33 and the iron core 11 is larger, the gap distance is smaller and uniform, the magnetic resistance is small, and the magnetic utilization rate of the permanent magnet 33 is high, ensuring that the driving effect of the magnetic field on the iron core component 1 is more stable. Correspondingly, the volume of the permanent magnet 33 can be reduced, achieving the effect of cost savings.

[0085] The yoke iron in this embodiment is the annular yoke iron 32. Specifically, it is formed by enclosing a U-shaped yoke iron 321 and a planar yoke iron 322. Of course, in other embodiments, it can also be formed by enclosing a cylindrical yoke iron and a planar yoke iron.

[0086] Of course, in other embodiments, it is also possible not to include a permanent magnet, but in this case, there is no magnetic circuit structure for magnetic holding, resulting in higher electricity costs, shorter service life, and poorer comprehensive performance stability.

[0087] Referring to Figure 9-10 As shown,

[0088] The iron core 11 consists of two sheet-like U-shaped iron cores 11. On their inner sides, there are respectively two convex buds 7, and on their outer sides, there are respectively two sliding convex buds 10. On both sides of the push card 12, there are respectively two grooves 8 corresponding to the convex buds 7. That is, a total of four sets of convex and concave structures are formed between the two sheet-like U-shaped iron cores 11 and the push card 12 to form four connection positions for fitting connection. The convex buds 7 on the inner sides of the two sheet-like U-shaped iron cores 11 and the grooves 8 on both sides of the push card 12 are assembled to form a strip-shaped iron core component 1. Both the iron core component 1 and the through hole have edges and corners. The iron core component 1 and the through hole of the wire holder 31 cooperate to form a circumferential anti-rotation structure. Further, there are chutes 9 on both inner sides of the wire holder 31. The sliding convex buds 10 on the outer sides of the two sheet-like U-shaped iron cores 11 in the iron core component 1 respectively cooperate with the chutes 9 of the wire holder 31 for clearance limit, realizing that the sliding friction area and movement direction of the iron core component 1 and the wire holder 31 are controllable and preventing the sheet-like U-shaped iron core 11 from rotating.

[0089] Of course, in other embodiments, the convex and concave structure can be an interference fit or a clearance fit for fixation or connection, as long as the side and the whole of the iron core 11 can be connected to the push card 12 to enable the iron core 11 to drive the push card 12 to move back and forth in the wire holder 31.

[0090] In addition, in other embodiments, between the iron core 11 and the push card 12, a connection position for fitting connection can be formed through a set of polygonal convex bud and groove structures, achieving the effects of integral pushing and anti-rotation.

[0091] The surfaces of the convex bud 7, the groove 8, the chute 9, or the sliding convex bud 10 of the present invention are smooth, and no foreign objects will be generated due to friction caused by the uncontrollable roughness of the fracture zone of the iron part punching surface, and the clearance of the sliding friction area between the iron core component 1 and the wire holder 31 is more uniform and easier to control.

[0092] One end of the push card 12 away from the iron core 11 is a push trigger part 121 for controlling the contact or separation of the contacts of the contact component 4. A manual switch 123 is also provided on the push trigger part 121 for manually driving the push trigger part 121 to control the contact or separation of the contacts of the contact component 4.

[0093] Refer to Figure 14-17 As shown, a through hole is formed on the planar yoke iron 322 in the yoke iron 32. One end of the base 2 away from the contact component 4 is provided with a micro switch reed 5. One end of the push card 12 close to the micro switch reed 5 protrudes with a micro trigger part 122 passing through the through hole, and the push card 12 drives the micro trigger part 122 to control the contact or separation of the contacts of the micro switch reed 5.

[0094] Specifically, refer to Figure 34-37As shown, in the initial state, the movable reed 52 of the microswitch and the fixed reed 51 of the microswitch are separated from each other. When the push card 12 slides within the wire holder 31, the microswitch trigger part 122 pushes the movable reed 52 of the microswitch to contact the fixed reed 51 of the microswitch, and it closes under this action.

[0095] This solenoid direct-acting relay is a magnetic latching relay applied to the intelligent circuit breaker device in the energy field, providing isolation protection, used to replace the traditional circuit breaker, and realizing the function of remote reconnection. It includes a magnetic circuit component 3, a contact component 4, an iron core component 1 (including the push card 12) and a base. To achieve the opening of the contact, a convex bump 10 structure is provided on the iron core component 1, and a corresponding chute 9 structure is provided on the wire holder 31, so that the convex bump 10 on the outside of the iron core component 1 cooperates with the chute 9 of the wire holder 31 for limiting. The friction area between the iron core component 1 and the wire holder 31 is smaller, realizing that the sliding friction area and the movement direction between the iron core component 1 and the wire holder 31 are controllable and reliable, and preventing the iron core 11 from rotating.

[0096] Embodiment 2, for the sake of brevity, only the differences from Embodiment 1 are described in this embodiment:

[0097] Refer to Figure 18-19 As shown, the iron core 11 is a sheet-shaped U-shaped iron core 11, with two convex bumps 7 on its inner side and two sliding convex bumps 10 on its outer side. One side of the push card 12 has two grooves 8, and the other side has two convex bumps 7. The convex bumps 7 on the inner side of the sheet-shaped U-shaped iron core 11 and the grooves 8 on one side of the push card 12 form two connection positions for fitting and connecting, and then the iron core component 1 is assembled. There are chutes 9 on both sides inside the wire holder 31. The sliding convex bumps 10 on the outer side of the sheet-shaped U-shaped iron core 11 in the iron core component 1 and the convex bumps 7 on the other side of the push card 12 respectively cooperate with the chutes 9 of the wire holder 31 to form clearance limits.

[0098] Of course, in other embodiments, since there are bending parts on both sides in the width direction of the sheet-shaped U-shaped iron core 11, the push card 12 can be clamped through the bending parts for fitting and limiting to form one connection position. Combining the connection of the sheet-shaped U-shaped iron core 11 and the push card 12 through a set of convex bump and groove structures (forming another connection position) can also achieve a stable effect.

[0099] Embodiment 3, for the sake of brevity, only the differences from Embodiment 2 are described in this embodiment:

[0100] Refer to Figure 20-22 As shown, different from Embodiment 2, the iron core 11 is a flat iron core 11, and the flat iron core 11 and the push card 12 are connected by two sets of convex bump and groove structures (corresponding to forming two connection positions).

[0101] Embodiment 4, for the sake of brevity, only the differences from Embodiment 1 are described in this embodiment:

[0102] Refer toFigure 23-25 As shown, there are two iron cores 11, namely a sheet-like U-shaped iron core 11 and a flat sheet-like iron core 11. There are two convex bumps 7 on the inner sides of both the U-shaped iron core 11 and the flat iron core 11, and two sliding convex bumps 10 on the outer sides of both. There are two grooves 8 on both sides of the push card 12. The convex bumps 7 on the inner sides of the U-shaped iron core 11 and the flat iron core 11 are assembled with the grooves 8 on both sides of the push card 12 to form the iron core component 1 (corresponding to forming four connection positions, and the side and the whole of the iron core 11 are connected to the push card 12). There are chutes 9 on both inner sides of the wire frame 31. The sliding convex bumps 10 on the outer sides of the U-shaped iron core 11 and the flat iron core 11 in the iron core component 1 are respectively in clearance limit cooperation with the chutes 9 of the wire frame 31.

[0103] Of course, in other embodiments, there can also be two grooves 8 on the inner sides of the U-shaped iron core 11 and the flat iron core 11, and two convex bumps 7 on both sides of the push card 12. The grooves 8 on the inner sides of the U-shaped iron core 11 and the flat iron core 11 are assembled with the convex bumps 7 on both sides of the push card 12 to form the iron core component 1.

[0104] Embodiment 5, for the sake of brevity, only the differences from Embodiment 1 will be described in this embodiment:

[0105] Refer to Figure 26-29 As shown, the iron core 11 is two sheet-like U-shaped iron cores 11. There are two grooves 8 on their inner sides respectively, and two sliding convex bumps 10 on their outer sides respectively. There are two convex bumps 7 on both sides of the push card 12. The grooves 8 on the inner sides of the two sheet-like U-shaped iron cores 11 are assembled with the convex bumps 7 on both sides of the push card 12 to form the iron core component 1 (corresponding to forming four connection positions, and the side and the whole of the iron core 11 are connected to the push card 12). There are chutes 9 on both inner sides of the wire frame 31. The sliding convex bumps 10 on the outer sides of the two sheet-like U-shaped iron cores 11 in the iron core component 1 are respectively in clearance limit cooperation with the chutes 9 of the wire frame 31.

[0106] Embodiment 6, for the sake of brevity, only the differences from Embodiment 5 will be described in this embodiment:

[0107] Refer to Figure 30-33 As shown, there are two convex bumps 7 on the inner sides of the two sheet-like U-shaped iron cores 11 respectively, and chutes 9 on their outer sides respectively. There are two grooves 8 on both sides of the push card 12. The convex bumps 7 on the inner sides of the two sheet-like U-shaped iron cores 11 are assembled with the grooves 8 on both sides of the push card 12 to form the iron core component 1 (corresponding to forming four connection positions, and the side and the whole of the iron core 11 are connected to the push card 12). There are convex ribs 6 formed on both inner sides of the wire frame 31. The chutes 9 on the outer sides of the two sheet-like U-shaped iron cores 11 in the iron core component 1 are respectively in clearance limit cooperation with the convex ribs 6 of the wire frame 31.

[0108] Embodiment 7, for the sake of brevity, only the differences from Embodiment 1 will be described in this embodiment:

[0109] Refer to Figure 38-39As shown, in the initial state, the movable reed 52 of the microswitch and the stationary reed 51 of the microswitch are in contact and closed with each other. When the push card 12 is pushed to slide within the wire holder 31, the microswitch trigger part 122 is driven to push the movable reed 52 of the microswitch to separate from the stationary reed 51 of the microswitch. Of course, the microswitch in any one of the above-mentioned Embodiments 2-6 can also be replaced with the structural setting mode of the microswitch in this embodiment.

[0110] Embodiment 8. For the sake of brevity, only the differences from Embodiment 1 will be described in this embodiment:

[0111] Referring to Figure 40-42 As shown, the iron core 11 is two planar iron cores 11. There are two convex bumps 7 on the inner sides of the planar iron cores 11 respectively, and two sliding convex bumps 10 on the outer sides respectively. There are two grooves 8 on both sides of the push card 12. The convex bumps 7 on the inner side of the planar iron core 11 and the grooves 8 on both sides of the push card 12 are assembled to form the iron core component 1 (corresponding to forming four connection positions, and the side and the whole of the iron core 11 are connected to the push card 12). There are sliding grooves 9 on both sides inside the wire holder 31. The sliding convex bumps 10 on the outer sides of the planar iron cores 11 in the iron core component 1 are respectively in clearance limit cooperation with the sliding grooves 9 of the wire holder 31.

[0112] Of course, in other embodiments, there can be two convex bumps 7 on both sides of the push card 12 respectively, and two grooves 8 on the inner sides of the planar iron cores 11 respectively. The grooves 8 on the inner side of the planar iron core 11 and the convex bumps 7 on both sides of the push card 12 are assembled to form the iron core component 1.

[0113] Embodiment 9. For the sake of brevity, only the differences from Embodiment 1 will be described in this embodiment:

[0114] Referring to Figure 43-44 As shown, the iron core 11 is two sheet-shaped L-shaped iron cores 11. There are two grooves 8 on the inner sides of the sheet-shaped L-shaped iron cores 11 respectively, and two sliding convex bumps 10 on the outer sides respectively. There are two convex bumps 7 on both sides of the push card 12. The grooves 8 on the inner side of the sheet-shaped L-shaped iron core 11 and the convex bumps 7 on both sides of the push card 12 are assembled to form the iron core component 1 (corresponding to forming four connection positions, and the side and the whole of the iron core 11 are connected to the push card 12). There are sliding grooves 9 on both sides inside the wire holder 31. The sliding convex bumps 10 on the outer sides of the sheet-shaped L-shaped iron cores 11 in the iron core component 1 are respectively in clearance limit cooperation with the sliding grooves 9 of the wire holder 31.

[0115] Of course, in other embodiments, there can be two grooves 8 on both sides of the push card 12 respectively, and two convex bumps 7 on the inner sides of the two sheet-shaped L-shaped iron cores 1 respectively. The convex bumps 7 on the inner side of the sheet-shaped L-shaped iron core 11 and the grooves 8 on both sides of the push card 12 are assembled to form the iron core component 1.

[0116] In addition, in other embodiments, the iron core component 1 may also be formed by assembling a planar iron core 11 and a sheet-like L-shaped iron core 11.

[0117] In the above embodiments, the groove may also be other structures such as through holes to achieve the fitting connection with the convex bract. Specifically, forms such as riveting may be used for connection.

[0118] Although the present invention has been specifically shown and described in connection with the preferred embodiments, those skilled in the art should understand that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.

Claims

1. A solenoid direct-acting relay, characterized in that: It includes a base, and a magnetic circuit component, a contact component and a push card arranged on the base, and the magnetic circuit component controls the contact or separation of the contacts of the contact component through the push card; The magnetic circuit component includes a bobbin and an iron core. The bobbin is provided with a through hole in the direction of contact separation of the contacts for one end of the push card to enter. A coil is wound around the bobbin to form a magnetic control loop. The iron core is connected to the push card to form an iron core component and can reciprocate linearly along the axial direction of the through hole in the bobbin. The iron core component and the through hole of the bobbin cooperate to form a circumferential anti-rotation structure; Wherein the iron core is sheet-shaped, and at least one connecting position is provided on one side in the thickness direction of the iron core and one side of the push card to realize the cooperation between the side surface of the iron core and the side surface of the push card, so as to realize the iron core driving the push card to move back and forth.

2. The solenoid direct-acting relay according to claim 1, characterized in that: At least two connecting positions are provided between the iron core and the push card, and one of the connecting positions is formed by the cooperation of a convex part and a concave part structure on one side in the thickness direction of the iron core and one side of the push card.

3. The solenoid direct-acting relay according to claim 1, characterized in that: The at least one connecting position is formed by the cooperation of a convex part and a concave part structure of a polygon.

4. The solenoid direct-acting relay according to claim 1, characterized in that: Both the iron core component and the through hole have edges and corners to realize the cooperation between the iron core component and the through hole to form a circumferential anti-rotation structure.

5. The solenoid direct-acting relay according to claim 4, characterized in that: A convex part or a chute is provided on the outer side of the iron core component, and a chute or a convex rib is provided in the bobbin. The convex part of the iron core component corresponds to the chute of the bobbin, or the chute of the iron core component corresponds to the convex rib of the bobbin for corresponding cooperation and limitation, so as to realize that the sliding friction area and the movement direction of the iron core component and the bobbin are controllable and prevent the iron core from rotating.

6. The solenoid direct-acting relay according to claim 2, characterized in that: One or two permanent magnets are arranged on both sides of the iron core component in the movement direction in the bobbin. A magnetic yoke iron is provided outside the bobbin and the permanent magnets to form a magnetic holding magnetic circuit structure. The cross section of the permanent magnet corresponds to the width of the iron core, and the magnetic field direction of the permanent magnet is perpendicular to the width surface of the iron core.

7. The solenoid direct-acting relay according to claim 5, characterized in that: One end of the push card away from the iron core is a push trigger part for controlling the contact or separation of the contacts of the contact component, and a manual switch is also arranged on the push trigger part.

8. The solenoid direct-acting relay according to claim 6, characterized in that: A through hole is formed on the magnetic yoke iron, and a micro switch reed is arranged at one end of the base away from the contact component. One end of the push card close to the micro switch reed protrudes to be provided with a micro trigger part passing through the through hole of the magnetic yoke iron, and the push card drives the micro trigger part to control the contact or separation of the contacts of the micro switch reed.

9. The solenoid direct-acting relay according to any one of claims 1-6, characterized in that: The iron core is at least one sheet-shaped iron core. The sheet-shaped iron core and the push card form an iron core component through convex-concave cooperation. There is a convex part on the outside of the iron core component, and there is a chute inside the bobbin. The convex part on the outside of the iron core component cooperates with the chute of the bobbin to form a clearance limit.

10. The solenoid direct-acting relay according to claim 9, characterized in that: The iron core is at least one sheet-shaped U-shaped iron core. The sheet-shaped U-shaped iron core and the push card form an iron core component through convex-concave cooperation at least at one place.

11. The solenoid direct-acting relay according to claim 10, characterized in that: Both sides in the width direction of the sheet-shaped U-shaped iron core have bending parts, and the bending parts can clamp the push card for fitting limit to form a connection position.

12. The solenoid direct-acting relay according to claim 9, characterized in that: The iron core is a sheet-shaped iron core. There are convex buds or grooves on the inner side, and sliding convex buds on the outside. There are grooves or convex buds on one side of the push card, and convex buds on the other side of the push card. The convex buds on the inner side of the sheet-shaped iron core and the grooves on one side of the push card, or the grooves on the inner side of the sheet-shaped iron core and the convex buds on one side of the push card are assembled to form an iron core component. There are chutes on both sides inside the bobbin. The sliding convex buds on the outside of the sheet-shaped iron core in the iron core component and the convex buds on the other side of the push card respectively cooperate with the chutes of the bobbin to form a clearance limit.

13. The solenoid direct-acting relay according to claim 12, characterized in that: The sheet-shaped iron core is a sheet-shaped U-shaped iron core, or a sheet-shaped L-shaped iron core, or a flat iron core.

14. The solenoid direct-acting relay according to claim 9, characterized in that: The iron core is two sheet-shaped iron cores. There are convex buds or grooves on the inner side, and sliding convex buds on the outside. There are convex buds or grooves on both sides of the push card. The convex buds on the inner side of the two sheet-shaped iron cores and the grooves on both sides of the push card, or the grooves on the inner side of the two sheet-shaped iron cores and the convex buds on both sides of the push card are assembled to form an iron core component. There are chutes on both sides inside the bobbin. The sliding convex buds on the outside of the two sheet-shaped iron cores in the iron core component respectively cooperate with the chutes of the bobbin for clearance limit.

15. The solenoid direct-acting relay according to claim 14, characterized in that: The two sheet-shaped iron cores are two sheet-shaped U-shaped iron cores, or two sheet-shaped L-shaped iron cores, or two flat iron cores, or one flat iron core and one sheet-shaped U-shaped iron core, or one flat iron core and one sheet-shaped L-shaped iron core.

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