Movable spring part, movable spring armature component and relay

Abstract

The utility model relates to a movable spring part, a movable spring armature component and a relay. The movable spring part comprises a movable spring body and a hinge. The movable spring body is used for being in contact with or separated from the static spring part and comprises a contact piece. The hinge is provided with a first end and a second end, the first end is used for being connected with the movable spring leading-out end, the second end is connected with the movable spring body, the hinge is used for providing counter force for the movable spring body, and the thickness of the hinge is smaller than that of the contact piece. In the action process of the relay, as the hinge is connected with the leading-out end of the movable spring, the hinge can twist in the moving process of the movable spring armature component, and the thickness of the hinge is smaller than that of the contact piece, so that the flexibility of the hinge can be ensured, the twisting times of the hinge are increased, the hinge is prevented from being broken, and the service life of the relay is prolonged. And meanwhile, the contact pressure of the contact can be ensured, and overlarge contact resistance and large contact rebound are avoided, so that the ablation loss of the contact can be avoided, and the service life of the relay is prolonged.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to a moving spring part, a moving spring armature component, and a relay. Background Technology

[0002] With the rapid development of fields such as automotive intelligence, more and more semiconductor chips and other devices are being used in high-temperature environments. To meet the application requirements of semiconductor chips and other devices at high temperatures, the production process requires the use of testing equipment to conduct comprehensive performance tests on semiconductor chips and other devices in low-temperature, normal-temperature, and 125°C environments. The signal switching module of such testing equipment requires high-temperature signal relays or high-frequency relays.

[0003] A relay typically consists of a moving spring and a stationary spring. The moving spring can move towards or away from the stationary spring to open or close the circuit. The moving spring includes a moving spring plate, a moving contact, and a hinge connecting the moving spring plate. Common moving spring components can ensure the lifespan of the hinge, but insufficient contact pressure, excessive contact resistance, and large contact bounce can accelerate contact erosion and wear, thus reducing the relay's lifespan. Utility Model Content

[0004] Therefore, it is necessary to provide a moving spring part, a moving spring armature component, and a relay to improve the service life of the relay.

[0005] In a first aspect, this application provides a movable spring portion, comprising:

[0006] The movable spring body, which is used to partially contact or separate from the stationary spring, includes a contact piece; and

[0007] A hinge having a first end and a second end, the first end being connected to a spring lead-out end, and the second end being connected to the spring body, the hinge being used to provide a reaction force to the spring body, and the thickness of the hinge being less than the thickness of the contact piece.

[0008] In the aforementioned moving spring portion, during relay operation, because the hinge is connected to the leading end of the moving spring, the hinge will twist during the movement of the moving spring armature component. Therefore, the thickness of the hinge is less than the thickness of the contact piece. This ensures the flexibility of the hinge, increases the number of twists, and prevents the hinge from breaking, thereby increasing the lifespan of the relay. Simultaneously, it ensures the contact pressure of the contacts, avoiding excessive contact resistance and large contact bounce, thus preventing contact erosion and further extending the relay's lifespan. In one embodiment, the moving spring body also includes a connecting piece, which is connected to the contact piece, with the second end connected to the connecting piece. Thus, the connecting piece provides a connection position for the hinge, facilitating connection between the hinge and the moving spring body. Simultaneously, the hinge is indirectly connected to the contact piece through the connecting piece, preventing mutual interference between the contact piece and the hinge during movement.

[0009] In one embodiment, the contact piece and the connecting piece are arranged along a first direction, and the hinge is disposed on the side of the connecting piece in a second direction, the first direction intersecting the second direction. This arrangement of the contact piece and hinge staggers prevents interference between them.

[0010] In one embodiment, the thickness of the connecting piece is equal to the thickness of the hinge. During injection molding of the moving spring armature component, because the thickness of the connecting piece is equal to the thickness of the hinge, sealing is convenient, and no special treatment is required for the injection mold. During processing, the moving spring can be directly stamped from a shaped metal strip with a continuous groove in the middle. Furthermore, because the thickness of the connecting piece is equal to the thickness of the hinge, stress concentration caused by a thickness difference at the connection point between the connecting piece and the hinge is avoided.

[0011] In one embodiment, there are two contact pieces, one of which is located on one side of the connecting piece in the first direction, and the other of which is located on the other side of the connecting piece in the first direction. Both contact pieces are connected to the connecting piece.

[0012] In one embodiment, the moving spring body further includes a moving contact, which is disposed on the contact piece.

[0013] Secondly, this application also provides a movable spring armature component, comprising:

[0014] armature;

[0015] The moving spring portion of any of the above; and

[0016] The insulator, the armature, and the moving spring are assembled into a single unit via the insulator.

[0017] In the aforementioned moving spring armature component, during relay operation, the hinge is connected to the lead-out end of the moving spring. As the moving spring armature component moves, the hinge twists. Therefore, the thickness of the hinge is less than the thickness of the contact piece. This ensures the flexibility of the hinge, increases the number of twists, and prevents the hinge from breaking, thereby increasing the relay's lifespan. Simultaneously, it ensures the contact pressure, preventing excessive contact resistance and large contact bounce, thus avoiding contact erosion and further enhancing the relay's lifespan.

[0018] In one embodiment, the contact piece has a connecting end disposed near the second end and located within the insulator. This places the interface between the different thicknesses of the moving spring piece inside the insulator, thus reducing the technical difficulty of the injection mold process.

[0019] In one embodiment, the connecting end has a through hole filled with an insulator. This solves the problem of cracking at the joint between the moving spring and the insulator under long-term high-temperature operation, improving the relay's thermal life under ultra-high temperature conditions. Furthermore, because the contact piece is relatively thick, the through hole at the connecting end reduces its impact on load capacity.

[0020] In one embodiment, the movable spring armature component further includes a permanent magnet, which is assembled into a single unit with the armature and the movable spring portion via the insulator; and / or, there are two movable spring portions, both of which extend along a first direction, one of which is located on one side of the armature in a second direction, and the other of which is located on the other side of the armature in the second direction, wherein the first direction intersects the second direction.

[0021] In one embodiment, the insulator has a clearance groove at its end in the second direction, and the hinge is disposed within the clearance groove. This avoids interference between the insulator and the hinge, while also making the moving spring armature component structure compact.

[0022] Thirdly, this application also provides a relay, comprising:

[0023] The outer casing has a receiving cavity;

[0024] A base component, the base component being disposed within the receiving cavity; and

[0025] The moving spring armature component of any of the above, wherein the moving spring armature component is disposed within the receiving cavity and mounted on the base component.

[0026] In the aforementioned relay, during relay operation, the hinge is connected to the lead-out end of the moving spring. As the moving spring armature component moves, the hinge will twist. Therefore, the thickness of the hinge is less than the thickness of the contact piece. This ensures the flexibility of the hinge, increases the number of twists of the hinge, and prevents the hinge from breaking, thereby increasing the lifespan of the relay. At the same time, it can also ensure the contact pressure of the contacts, avoid excessive contact resistance and large contact bounce, thus avoiding contact erosion and wear, thereby improving the lifespan of the relay.

[0027] In one embodiment, the base component is provided with a first positioning part, and the movable spring armature component is provided with a second positioning part. The first positioning part and the second positioning part cooperate to form a swing fulcrum, so that the movable spring armature component and the swing fulcrum cooperate to form a seesaw structure.

[0028] In one embodiment, the base component includes a coil assembly, which includes an iron core and a coil. The iron core includes a winding portion, a first pole portion, a second pole portion, and a protrusion portion. The coil is wound around the winding portion. The first pole portion and the second pole portion are respectively located at opposite ends of the winding portion. The protrusion portion is located between the first pole portion and the second pole portion. The first pole portion, the second pole portion, and the protrusion portion all extend from the winding portion toward the location of the moving spring armature component. Thus, the magnetic reluctance of the iron core is low, and under the same permanent magnet conditions, the resulting closing force between the armature and the iron core is greater, improving the coil magnetic field efficiency and increasing the attractive force.

[0029] In one embodiment, the coil assembly further includes a first insulating member, a second insulating member, and a third insulating member. The first insulating member is disposed on the protrusion, the second insulating member is disposed on the first pole, and the third insulating member is disposed on the second pole. The first insulating member, the winding portion, and the second insulating member form a first winding window, and the first insulating member, the winding portion, and the third insulating member form a second winding window. The coil is wound around both the first winding window and the second winding window. Thus, the first insulating member, the second insulating member, and the third insulating member can limit the movement of the coil, which is beneficial for the coil to be wound stably and reliably around the first winding window and the second winding window. Simultaneously, the first insulating member acts as a partition, reducing the erosion of the coil's enameled wire during the injection molding process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a relay according to an embodiment of this application.

[0031] Figure 2 for Figure 1 The relay shown is shown in top view.

[0032] Figure 3 for Figure 2 Sectional view of AA.

[0033] Figure 4 for Figure 1 The diagram shows the structure of the relay with the heat-conducting component removed.

[0034] Figure 5 for Figure 4 The relay shown is shown in top view.

[0035] Figure 6 for Figure 5 A cross-sectional view of BB.

[0036] Figure 7 for Figure 1 The diagram shown is an exploded view of the relay structure.

[0037] Figure 8 This is a schematic diagram of the structure of the base component and the moving spring armature component after assembly according to an embodiment of this application.

[0038] Figure 9 This is a schematic diagram of the structure of a moving spring armature component according to an embodiment of this application.

[0039] Figure 10 for Figure 9 The top view of the moving spring armature component shown.

[0040] Figure 11 for Figure 10 A sectional view of CC.

[0041] Figure 12 for Figure 11 A magnified view of a portion of point A in the middle.

[0042] Figure 13 for Figure 9 The diagram shows the structure of the moving spring.

[0043] Figure 14 This is a schematic diagram of the structure of a base component according to an embodiment of this application.

[0044] Figure 15 for Figure 14 The diagram shown is an exploded view of the base component.

[0045] Figure 16 This is a schematic diagram of the coil assembly of this application and its embodiments.

[0046] Figure 17 for Figure 16 The diagram shown is a structural schematic of the coil assembly from another perspective.

[0047] Figure 18This is a schematic diagram of the structure of an iron core according to an embodiment of this application.

[0048] Figure 19 This is a schematic diagram of the assembled structure of the iron core, armature, and permanent magnet according to an embodiment of this application.

[0049] Figure 20 for Figure 19 The image shows a front view of the assembled iron core, armature, and permanent magnet.

[0050] Explanation of icon numbers:

[0051] 10. Base component; 11. Base body; 111. First side; 112. Second side; 113. First positioning part; 12. Coil assembly; 121. Iron core; 1211. Winding part; 1212. First pole part; 1213. Second pole part; 1214. Protrusion; 1215. First winding window; 1216. Second winding window; 1217. First lead-out end; 1218. Second lead-out end; 122. Coil; 123. First insulating component; 1231. First insulating body; 12311. Wire groove; 1232. Second insulating body; 124. Second insulating component; 125. Third insulating component; 13. Heat dissipation part; 131. Heat dissipation port; 1311. First heat dissipation port; 1312. Second heat dissipation port; 132. Heat-conducting component; 14. Stationary spring section; 141. Stationary contact; 15. Stationary spring lead-out foot; 151. First flange; 16. Moving spring lead-out foot; 161. Second flange; 17. Coil lead-out foot; 171. Third flange; 20. Moving spring armature component; 21. Moving spring section; 211. Moving spring body; 2111. Contact piece; 2112. Moving contact; 2113. Connecting end; 21131. Through hole; 2114. Connecting piece; 212. Hinge; 2121. First welding position; 2122. Second welding position; 2123. First end; 2124. Second end; 22. Armature; 23. Insulator; 231. Clearance groove; 24. Permanent magnet; 30. Outer shell; 40. Shielding cover; 41. Grounding terminal; 411. Fourth flange; 42. Cover. Detailed Implementation

[0052] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0053] See Figure 1 and Figure 7An embodiment of this application provides a relay including a base component 10, a moving spring armature component 20, and a housing 30. The housing 30 has a receiving cavity and a first opening, and the receiving cavity communicates with the first opening. The base component 10 and the moving spring armature component 20 are both disposed in the receiving cavity through the first opening, and the moving spring armature component 20 is disposed on the base component 10.

[0054] In one embodiment, see Figure 8 The movable spring armature component 20 is movably disposed on the base component 10, and the movable spring armature component 20 can swing relative to the base component 10.

[0055] Further, see Figure 8 and Figure 14 The base component 10 is provided with a first positioning part 113, and the movable spring armature component 20 is provided with a second positioning part. The first positioning part 113 and the second positioning part are positioned and cooperate to form a swing fulcrum, and the movable spring armature component 20 can swing around the swing fulcrum. It can be understood that the movable spring armature component 20 and the swing fulcrum cooperate to form a seesaw structure.

[0056] Optionally, see Figure 13 The first positioning part 113 is provided with a positioning protrusion, and the second positioning part is provided with a positioning groove, with the positioning protrusion located in the positioning groove.

[0057] Of course, in other embodiments, the first positioning part 113 is provided with a positioning groove, and the second positioning part is provided with a positioning protrusion.

[0058] In one embodiment, see Figure 9 , Figure 13 and Figure 14 The moving spring armature component 20 includes a moving spring portion 21. The moving spring portion 21 includes a moving spring body 211 and a hinge 212. The moving spring body 211 is used to contact or separate from the stationary spring portion 14. The hinge 212 has a first end 2123 and a second end 2124. The first end 2123 is used to connect to the moving spring lead-out end, and the second end 2124 is used to connect to the moving spring body 211. The hinge 212 is used to provide a reaction force to the moving spring body 211.

[0059] Further, see Figure 13 The movable spring body 211 includes a movable spring plate, and the second end 2124 is connected to the movable spring plate. The movable spring plate includes a contact piece 2111. It can be understood that the contact piece 2111 is part of the movable spring plate.

[0060] Optionally, the moving spring body 211 includes only the moving spring piece. In use, the contact piece 2111 contacts or separates from the stationary spring portion 14.

[0061] Optionally, see Figure 13 and Figure 14The moving spring body 211 also includes a moving contact 2112, which is located on the contact piece 2111. In use, the moving contact 2112 contacts or separates from the stationary contact 141 of the stationary spring part 14.

[0062] In a typical moving spring section 21, the thickness of the hinge 212 is equal to the thickness of the contact piece 2111. While this ensures the service life of the hinge 212, it results in lower contact pressure, higher contact resistance, and greater contact bounce, which accelerates contact erosion and wear, ultimately reducing the relay's lifespan. Therefore, in this embodiment, the thickness of the hinge 212 is less than the thickness of the contact piece 2111. It can be understood that the hinge 212 maintains its original thickness, while the contact piece 2111 is thickened based on its original thickness.

[0063] During the relay operation, since the hinge 212 is connected to the lead-out end of the moving spring, the hinge 212 will twist during the movement of the moving spring armature component 20. Therefore, in this embodiment, the thickness of the hinge 212 is less than the thickness of the contact piece 2111. This ensures the flexibility of the hinge 212, increases the number of twists of the hinge 212, and ensures that the hinge 212 will not break, thereby increasing the lifespan of the relay. At the same time, it can also ensure the contact pressure of the contact point, avoid excessive contact resistance and large contact bounce, thus avoiding contact erosion and wear, thereby improving the lifespan of the relay.

[0064] In one embodiment, see Figure 13 The movable spring body 211 also includes a connecting piece 2114. The connecting piece 2114 is connected to the contact piece 2111, and the second end 2124 is connected to the connecting piece 2114. Thus, the connecting piece 2114 provides a connection point for the hinge 212, facilitating the connection between the hinge 212 and the movable spring body 211. Furthermore, the hinge 212 is indirectly connected to the contact piece 2111 via the connecting piece 2114, which prevents the contact piece 2111 and the hinge 212 from interfering with each other during movement.

[0065] In one embodiment, see Figure 13 The contact piece 2111 and the connecting piece 2114 are arranged along a first direction, and the hinge 212 is located on one side of the connecting piece 2114 in a second direction. The first and second directions intersect; for example, the first direction can be perpendicular to the second direction. X represents the first direction, and Y represents the second direction. This arrangement staggers the contact piece 2111 and the hinge 212, thus preventing interference between them.

[0066] In one embodiment, see Figure 13The thickness of the connecting piece 2114 is equal to the thickness of the hinge 212. Thus, during the injection molding process of the moving spring armature component 20, because the thickness of the connecting piece 2114 is equal to the thickness of the hinge 212, sealing is convenient, and no special treatment is required for the injection mold. Furthermore, the moving spring can be directly stamped from a shaped metal strip with a continuous groove in the middle during processing. In addition, because the thickness of the connecting piece 2114 is equal to the thickness of the hinge 212, stress concentration caused by a thickness difference at the connection point between the connecting piece 2114 and the hinge 212 can be avoided.

[0067] In one embodiment, see Figure 13 There are two contact pieces 2111. One contact piece 2111 is located on one side of the connecting piece 2114 in the first direction, and the other contact piece 2111 is located on the other side of the connecting piece 2114 in the first direction. Both contact pieces 2111 are connected to the connecting piece 2114.

[0068] It should be noted that since the moving spring armature component 20 is in contact with or separates from the stationary spring part 14 in the form of a seesaw, when one of the contact pieces 2111 or its moving contact 2112 is in contact with the stationary spring part 14, the other contact piece 2111 or its moving contact 2112 is separated from the stationary spring part 14.

[0069] In one embodiment, see Figure 13 The hinge 212 has a first welding position 2121 and a second welding position 2122, both located on the same side of the armature 22. Specifically, the first welding position 2121 and the second welding position 2122 are both located on the side of the hinge 212 away from the connecting piece 2114. This improves the connection strength between the moving spring portion 21 and the moving spring lead-out end, making it less likely for the moving spring portion 21 to separate from the moving spring lead-out end, thus increasing the mechanical life of the relay. Simultaneously, it also ensures conductivity and heat dissipation, reducing the temperature rise at the solder joint.

[0070] It should be noted that both the first welding position 2121 and the second welding position 2122 are electrically connected to the lead-out end of the moving spring.

[0071] Optionally, the first welding position 2121 and / or the second welding position 2122 are provided with welding grooves, and the walls of the welding grooves are arc-shaped.

[0072] In one embodiment, see Figure 9 and Figure 10 The moving spring armature component 20 also includes an armature 22 and an insulator 23. The armature 22 and the moving spring part 21 are assembled into a single unit by means of the insulator 23.

[0073] Optionally, the insulator 23 is a plastic part, and the armature 22 and the moving spring part 21 are assembled into a whole by injection molding.

[0074] In one embodiment, see Figure 11 , Figure 12 and Figure 13 In the first direction, the contact piece 2111 has a connecting end 2113, which is located near the second end 2124 and is situated inside the insulator 23. This design places the junction of different thicknesses of the moving spring piece inside the insulator 23, thus reducing the technical difficulty of the injection mold process.

[0075] In one embodiment, see Figure 12 and Figure 13 The connecting end 2113 is provided with a through hole 21131, which is filled with an insulator 23. This solves the problem of cracking at the joint between the moving spring and the insulator 23 under long-term high-temperature operation, improving the relay's thermal life under ultra-high temperature conditions. Furthermore, because the contact piece 2111 is relatively thick, the through hole 21131 in the connecting end 2113 reduces its impact on the load capacity.

[0076] Optionally, see Figure 13 There are two through holes 21131, and the two through holes 21131 are respectively set to correspond one-to-one with the connecting ends 2113 of the two contact pieces 2111.

[0077] Of course, in other embodiments, the connecting end 2113 may also be provided with two or more through holes 21131, and the number of through holes 21131 is not limited thereto.

[0078] In one embodiment, see Figure 6 The movable spring armature component 20 also includes a permanent magnet 24. The permanent magnet 24 is located on the side of the armature 22 facing the base component 10. The permanent magnet 24 is assembled together with the armature 22 and the movable spring portion 21 via an insulator 23.

[0079] In one embodiment, see Figure 9 and Figure 10 There are two moving spring parts 21, both of which extend along the first direction, and the two moving springs are respectively located on both sides of the armature 22 in the second direction.

[0080] In one embodiment, see Figure 10 The insulator 23 has a clearance groove 231 at its end in the second direction, and the hinge 212 is disposed in the clearance groove 231. In this way, interference between the insulator 23 and the hinge 212 is avoided, and the moving spring armature component 20 is also made compact.

[0081] In one embodiment, see Figure 3 , Figure 14 and Figure 15 The base component 10 includes a base body 11 and a coil assembly 12. The coil assembly 12 includes a coil 122, which is covered by the base body 11.

[0082] Optionally, the base 11 is made of plastic, and the base structure is processed using an insert injection molding process so that the base 11 covers the coil 122. This helps to reduce the volume of the base structure.

[0083] However, by enclosing the coil 122 within the base 11, the heat generated by the coil 122 when energized cannot be dissipated quickly. Therefore, in this embodiment, see... Figure 3 The base structure also includes a heat dissipation part 13, which is disposed in at least one of the base body 11 and the coil assembly 12. The heat dissipation part 13 is correspondingly disposed to the coil assembly 12, and the heat generated by the coil 122 can be dissipated through the heat dissipation part 13.

[0084] Optionally, when a portion of the coil assembly 12 is located outside the base 11, a heat dissipation portion 13 may be provided at the part of the coil assembly 12 exposed outside the base 11.

[0085] Optionally, when the coil assembly 12 is enclosed in the base 11, a heat dissipation part 13 can be provided on the base 11, or a heat dissipation part 13 can be provided on both the base 11 and the coil assembly 12.

[0086] When the relay is working, the coil 122 generates heat when energized. Since the base 11 is provided with a heat dissipation part 13, which is correspondingly arranged with the coil assembly 12, the heat generated by the coil 122 when energized can be dissipated to the outside of the relay through the heat dissipation part 13. This reduces the temperature rise of the coil 122, prevents the enamel film of the coil 122 from melting and causing a short circuit in the coil 122, and enables the relay to meet the requirements for use in high-temperature environments.

[0087] In one embodiment, see Figure 6 The heat dissipation section 13 is provided with a heat dissipation port 131, through which the coil assembly 12 communicates with the external air. By providing the heat dissipation port 131, a direct channel is established between the coil assembly 12 and the external air, allowing hot air to be quickly exhausted from the port while cooler external air can be promptly introduced, creating good air convection circulation. This accelerates the dissipation of heat generated by the coil assembly 12 to the surrounding environment, effectively reducing the temperature of the coil assembly 12. The heat dissipation port 131 also allows the heat inside the coil assembly 12 to directly contact the external air, further expanding the heat dissipation area and improving heat dissipation efficiency. Furthermore, it reduces reliance on other complex heat dissipation components, which helps lower manufacturing costs.

[0088] In one embodiment, see Figure 6 The heat dissipation port 131 includes a first heat dissipation port 1311, which is located on the base 11, so that the coil assembly 12 is connected to the outside air through the first heat dissipation port 1311, so that the heat generated by the coil 122 can be exchanged with the outside air through the first heat dissipation port 1311.

[0089] In one embodiment, see Figure 6 , Figure 7 and Figure 8 The base 11 has a first side 111 and a second side 112 facing each other. The moving spring armature component 20 is located on the first side 111, and the first heat dissipation port 1311 is located on the second side 112. It can be understood that the first heat dissipation port 1311 and the moving spring armature component 20 are respectively located on opposite sides of the base 11, which avoids interference between the heat dissipation part 13 and the moving spring armature component 20. In addition, it can also prevent hot air exhausted through the first heat dissipation port 1311 from blowing directly onto the moving spring armature component 20, reducing the impact of heat on the moving spring armature component 20, avoiding the degradation of the electromagnetic performance of the moving spring armature component 20 due to high temperature, ensuring the stability and reliability of the moving spring armature 22 assembly, and extending the service life of the moving spring armature component 20.

[0090] In one embodiment, see Figure 6 The heat dissipation vent 131 also includes a second heat dissipation vent 1312. The second heat dissipation vent 1312 is located on the coil assembly 12, and the first heat dissipation vent 1311 is connected to the second heat dissipation vent 1312. The heat generated by the coil 122 can be dissipated through the second heat dissipation vent 1312, and then exchanged with the outside air through the first heat dissipation vent 1311. This allows for rapid heat dissipation and improves heat dissipation efficiency.

[0091] In one embodiment, see Figure 3 and Figure 6 The coil assembly 12 also includes an iron core 121 and an insulating portion. The coil 122 is wound around the iron core 121, and the insulating portion is disposed on the iron core 121. By providing the insulating portion on the iron core 121, the insulating portion can act as a barrier for the coil 122, making it easier for the coil 122 to be wound stably and reliably on the iron core 121.

[0092] It should be noted that the coil 122 can be directly wound around the iron core 121. Of course, in other embodiments, it can also be indirectly wound around the iron core 121. Specifically, an insulating layer is provided between the iron core 121 and the coil 122.

[0093] In one embodiment, the second heat dissipation vent 1312 is located in the insulation portion. In this way, the heat generated by the coil 122 can be exchanged with the outside air through the second heat dissipation vent 1312, preventing the performance of the insulation portion from degrading at high temperatures and ensuring the stability of the insulation performance. At the same time, designing the second heat dissipation vent 1312 in the insulation portion reduces the difficulty of manufacturing the second heat dissipation vent 1312.

[0094] In one embodiment, see Figure 3 The iron core 121 includes a winding part 1211, which is located inside the base 11, and the coil 122 is wound on the winding part 1211.

[0095] Specifically, the winding portion 1211 has a strip-shaped structure and has two opposing ends. Optionally, the winding portion 1211 can be a winding block or a winding shaft.

[0096] Further, see Figure 6 and Figure 7 The core 121 also includes a first pole portion 1212 and a second pole portion 1213. The first pole portion 1212 and the second pole portion 1213 are respectively located at opposite ends of the winding portion 1211 along its length. Both the first pole portion 1212 and the second pole portion 1213 extend from the winding portion 1211 toward the first side 111 near the base 11; that is, both the first pole portion 1212 and the second pole portion 1213 extend toward the moving spring armature member 20. (See reference...) Figure 18 The winding portion 1211, the first pole portion 1212 and the second pole portion 1213 are connected to form a U-shape.

[0097] See Figure 14 The ends of the first pole 1212 and the second pole 1213 that are away from the winding part 1211 are both located outside the base body 11.

[0098] In one embodiment, see Figure 6 The core 121 also includes a protrusion 1214. The protrusion 1214 is located between the first pole portion 1212 and the second pole portion 1213, and extends from the winding portion 1211 toward the first side 111 near the base 11. It can be understood that the protrusion 1214 extends from the winding portion 1211 toward the moving spring armature member 20. See also... Figure 19 and Figure 20 By providing a protrusion 1214 in the winding section 1211, the protrusion 1214 can reduce the magnetic circuit gap between the middle section of the iron core 121 and the permanent magnet 24. This helps to reduce the magnetic reluctance of the magnetic circuit, improve the magnetic circuit efficiency, and at the same time improve the magnetic field efficiency between the armature 22 and the pole face of the iron core 121, thereby increasing the electromagnetic attraction between the armature 22 and the iron core 121. In addition, it can also improve the utilization rate of stamping materials.

[0099] Optionally, see Figure 20 The protrusion 1214 is located at the middle of the winding portion 1211 along its length. The winding portion 1211, the first pole portion 1212, the second pole portion 1213, and the protrusion 1214 are connected to form a mountain-shaped structure. In one embodiment, see [reference needed]. Figure 16 The insulating portion includes a first insulating member 123, a second insulating member 124, and a third insulating member 125. The first insulating member 123 covers the protrusion 1214 and extends in a direction away from the protrusion 1214. The second insulating member 124 covers the first electrode 1212 and extends in a direction away from the first electrode 1212. The third insulating member 125 covers the second electrode 1213 and extends in a direction away from the second electrode 1213.

[0100] Further, see Figure 6 and Figure 16 The first insulating member 123 is located at the middle of the winding portion 1211 along its length. This makes the lengths of the winding portions 1211 on both sides of the first insulating member 123 equal or nearly equal, preventing the coil 122 wound on one side of the first insulating member 123 from being too long, thereby avoiding the problem of the enameled wire of the coil 122 breaking during the injection molding of the base body 11.

[0101] Further, see Figure 16 The first insulating member 123, the winding portion 1211, and the second insulating member 124 form a first winding window 1215, and the first insulating member 123, the winding portion 1211, and the third insulating member 125 form a second winding window 1216. A coil 122 is wound around both the first winding window 1215 and the second winding window 1216. Thus, the first insulating member 123, the second insulating member 124, and the third insulating member 125 can limit the movement of the coil 122, facilitating stable and reliable winding of the coil 122 around the first winding window 1215 and the second winding window 1216. Simultaneously, the first insulating member 123 acts as a partition, reducing the erosion of the enameled wire of the coil 122 during the injection molding process. Furthermore, since no insulating members are provided at either end of the middle section of the iron core 121, the coil 122 is directly wound onto the iron core 121, reducing the power consumption of the coil 122 while also increasing its attractive force.

[0102] Optionally, the first insulating member 123, the second insulating member 124, and the third insulating member 125 are all plastic parts. The first insulating member 123 is injection molded on the protrusion 1214, the second insulating member 124 is injection molded on the first electrode 1212, and the third insulating member 125 is injection molded on the second electrode 1213.

[0103] In one embodiment, see Figure 6 and Figure 16The first insulating member 123 has wire grooves 12311 on both sides of the winding portion 1211 along its length. Optionally, the wire grooves 12311 are located on the side of the first insulating member 123 closest to the moving spring armature component 20. In this way, the wire grooves 12311 support the enameled wire of the coil 122, preventing the enameled wire of the coil 122 from being scratched during winding or from being broken by the injection molten material of the base 11.

[0104] Further, see Figure 16 The coil assembly 12 further includes a first lead-out terminal 1217 and a second lead-out terminal 1218, which are fixed to the second insulating member 124 by injection molding. Optionally, the first lead-out terminal 1217 and the second lead-out terminal 1218 are respectively located on both sides of the second insulating member 124 along the length direction of the winding portion 1211. Specifically, one end of the coil 122 is electrically connected to the first lead-out terminal 1217, and the other end of the coil 122 is electrically connected to the second lead-out terminal 1218.

[0105] It should be noted that the first lead 1217 is the lead-in start point, and the second lead 1218 is the lead-out end point. Alternatively, the first lead 1217 is the lead-in start point, and the second lead 1218 is the lead-out end point.

[0106] In one embodiment, see Figure 6 The first heat dissipation vent 1311 is positioned opposite to the protrusion 1214. This ensures effective heat dissipation for the coil assembly 12 while preventing the coil 122 from being exposed and affecting the safety of the relay. Furthermore, it prevents interference from the coil assembly 12 with the heat dissipation portion 13 (e.g., the heat-conducting portion).

[0107] In one embodiment, see Figure 6 and Figure 17 The second heat dissipation vent 1312 is located on the first insulating member 123, and the iron core 121 is connected to the outside air through the first heat dissipation vent 1311 and the second heat dissipation vent 1312. The heat generated when the coil 122 is energized is transferred to the iron core 121, and the heat on the iron core 121 exchanges heat with the outside air through the first heat dissipation vent 1311 and the second heat dissipation vent 1312, thereby achieving heat dissipation of the coil assembly 12. In addition, since the first insulating member 123 is located in the middle of the winding portion 1211 along its length, and the second heat dissipation vent 1312 is provided on the first insulating member 123, it is equivalent to placing the heat dissipation portion 13 in the middle of the coil 122, which can prevent the temperature of the coil 122 at the first winding window 1215 or the second winding window 1216 from becoming too high.

[0108] In one embodiment, see Figure 17The first insulating member 123 includes a first insulating body 1231 and a second insulating body 1232. The first insulating body 1231 covers the protrusion 1214, and one end of the protrusion 1214 facing away from the winding portion 1211 is located outside the first insulating body 1231. The second insulating body 1232 is disposed on the side of the winding portion 1211 facing away from the protrusion 1214.

[0109] Further, see Figure 17 The second heat dissipation vent 1312 is disposed on the second insulating body 1232, and the second heat dissipation vent 1312 extends through the second insulating body 1232 along the extending direction of the protrusion 1214. Optionally, see [reference needed]. Figure 6 The first heat dissipation port 1311 and the second heat dissipation port 1312 are arranged opposite to each other.

[0110] Because of the high thermal conductivity of the iron core 121, the heat generated by the coil 122 when energized will be quickly transferred to the iron core 121. The iron core 121 is directly connected to the outside air through the first heat dissipation port 1311 and the second heat dissipation port 1312. In this way, the iron core 121 can exchange heat with the outside air to reduce the temperature of the iron core 121, thereby reducing the temperature rise of the coil 122. This prevents the insulation of the enameled wire of the coil 122 from being damaged due to excessive temperature, thus preventing the coil 122 from failing and enabling the relay to meet the requirements for use in high-temperature environments.

[0111] In addition, during the injection molding process of the base 11, the first heat dissipation port 1311 and the second heat dissipation port 1312 cooperate to be used for the positioning of the coil assembly 12, improve the injection molding accuracy of the coil assembly 12 and the base 11, and at the same time improve the positioning accuracy of the pole face of the iron core 121, which is conducive to improving the consistency of the mechanical parameters and stroke of the relay and improving the pass rate of the relay.

[0112] In one embodiment, see Figure 3 The heat dissipation section 13 includes a heat-conducting element 132. The heat-conducting element 132 is thermally connected to the coil assembly 12. In this way, the heat-conducting element 132 can quickly dissipate the heat generated by the coil assembly 12, thereby reducing the temperature of the coil assembly 12.

[0113] In one embodiment, see Figure 3 and Figure 6A heat-conducting element 132 is disposed within the heat dissipation port 131 and is thermally connected to the iron core 121. Due to the high thermal conductivity of the iron core 121, the heat generated by the coil 122 when energized is quickly transferred to the iron core 121. Since the iron core 121 and the heat-conducting element 132 are thermally connected, the heat generated by the coil 122 can be transferred to the heat-conducting element 132, which then conducts the heat generated by the coil 122 to the outside air for heat dissipation. This reduces the temperature rise of the coil 122, preventing damage to the enameled wire insulation of the coil 122 due to excessive temperature, thus preventing functional failure of the coil 122 and enabling the relay to meet the requirements for use in high-temperature environments.

[0114] In one embodiment, if the relay is a high-frequency relay, the heat-conducting component 132 is also used for grounding. During installation, the end of the heat-conducting component 132 facing away from the iron core 121 is soldered to the PCB board for grounding, which can realize the grounding treatment of the magnetic circuit parts such as the iron core 121 and armature 22, reduce internal crosstalk, and thus improve the transmission performance of high-frequency signals of the high-frequency relay.

[0115] Optionally, the heat-conducting component 132 is a heat-conducting metal block that does not have magnetic properties. In this way, the heat-conducting metal block can play the roles of heat conduction and grounding without being magnetic.

[0116] In one embodiment, see Figure 1 If the relay is a high-frequency relay, it also includes a shielding cover 40. Specifically, the shielding cover 40 includes a cover body 42 and a grounding terminal 41. The cover body 42 has a shielding cavity and a second opening communicating with the shielding cavity. The base component 10, the moving spring armature component 20, and the outer shell 30 are all located inside the shielding cavity. The grounding terminal 41 is located at the open end of the cover body 42. It can be understood that the open end of the cover body 42 refers to the end of the cover body 42 with the second opening. By setting the shielding cover 40, the shielding cover 40 can effectively isolate interference from external electric fields, magnetic fields, or electromagnetic fields, and improve the relay's transmission performance for high-frequency signals.

[0117] In one embodiment, see Figure 1 and Figure 7 The moving spring armature component 20 is located on the side of the base component 10 opposite to the second opening. In this way, the interference of external electric, magnetic or electromagnetic fields on the moving spring armature component 20 through the second opening can be reduced, further improving the relay's transmission performance for high-frequency signals.

[0118] In one embodiment, see Figure 14 The relay also includes a stationary spring lead 15, a moving spring lead 16, and a coil lead 17, which are assembled into a single unit via a base 11.

[0119] Further, see Figure 1and Figure 3 The stationary spring lead-out foot 15 includes a first flange 151, the moving spring lead-out foot 16 includes a second flange 161, and the coil lead-out foot 17 includes a third flange 171. The first flange 151, second flange 161, and third flange 171 are all located outside the shielding cover 40 through the first and second openings. The grounding terminal 41 includes a fourth flange 411, which is folded outwards from the shielding cavity. The end face of the heat-conducting element 132 facing away from the iron core 121, the first flange 151, the second flange 161, the third flange 171, and the fourth flange 411 are all located on the same plane. This arrangement facilitates grounding the relay, reduces grounding difficulty, and improves grounding stability.

[0120] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0121] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0122] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0123] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0124] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0125] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A movable spring portion, characterized in that, include: The movable spring body, which is used to partially contact or separate from the stationary spring, includes a contact piece; and A hinge having a first end and a second end, the first end being connected to a spring lead-out end, and the second end being connected to the spring body, the hinge being used to provide a reaction force to the spring body, and the thickness of the hinge being less than the thickness of the contact piece.

2. The movable spring portion according to claim 1, characterized in that, The moving spring body also includes a connecting piece, which is connected to the contact piece, and the second end is connected to the connecting piece.

3. The movable spring portion according to claim 2, characterized in that, The contact piece and the connecting piece are arranged along a first direction, and the hinge is located on one side of the connecting piece in a second direction, wherein the first direction and the second direction intersect.

4. The moving spring portion according to claim 2, wherein The thickness of the connecting piece is equal to the thickness of the hinge.

5. The moving spring portion according to claim 2, wherein The contact piece is provided in two parts, one of which is located on one side of the connecting piece in the first direction, and the other is located on the other side of the connecting piece in the first direction. Both contact pieces are connected to the connecting piece.

6. The movable spring portion according to any one of claims 1 to 5, characterized in that, The moving spring body also includes a moving contact, which is located on the contact piece.

7. A movable spring armature component, characterized in that, include: armature; The movable spring portion as described in any one of claims 1 to 6; as well as The insulator, the armature, and the movable spring are assembled into a single unit via the insulator.

8. The movable spring armature component according to claim 7, characterized in that, The contact piece has a connecting end, which is disposed near the second end and is located within the insulator.

9. The moving coil armature component of claim 8, wherein, The connecting end is provided with a through hole, and the through hole is filled with an insulator.

10. The moving coil armature assembly of claim 7 wherein, The movable spring armature component also includes a permanent magnet, which is assembled into a single unit with the armature and the movable spring portion via the insulator; And / or, the moving spring portion is provided in two parts, both of which extend along the first direction, one of which is located on one side of the armature in the second direction, and the other of which is located on the other side of the armature in the second direction, the first direction intersecting the second direction.

11. The movable spring armature component according to any one of claims 7 to 10, characterized in that, The insulator has a clearance groove at its end in the second direction, and the hinge is disposed in the clearance groove.

12. A relay characterized by comprising: include: The outer casing has a receiving cavity; A base component, wherein the base component is disposed within the receiving cavity; as well as The movable spring armature component as described in any one of claims 7 to 11, wherein the movable spring armature component is disposed within the receiving cavity and mounted on the base component.

13. The relay of claim 12, wherein, The base component is provided with a first positioning part, and the moving spring armature component is provided with a second positioning part. The first positioning part and the second positioning part cooperate to form a swing fulcrum, and the moving spring armature component and the swing fulcrum cooperate to form a seesaw structure.

14. The relay according to claim 12, characterized in that, The base component includes a coil assembly, which includes an iron core and a coil. The iron core includes a winding portion, a first pole portion, a second pole portion, and a protrusion portion. The winding portion is wound with the coil. The first pole portion and the second pole portion are respectively located at opposite ends of the winding portion. The protrusion portion is located between the first pole portion and the second pole portion. The first pole portion, the second pole portion, and the protrusion portion all extend from the winding portion toward the location of the moving spring armature component.

15. The relay of claim 14, wherein, The coil assembly further includes a first insulating member, a second insulating member, and a third insulating member. The first insulating member is disposed on the protrusion, the second insulating member is disposed on the first pole, and the third insulating member is disposed on the second pole. The first insulating member, the winding portion, and the second insulating member surround to form a first winding window, and the first insulating member, the winding portion, and the third insulating member surround to form a second winding window. The coil is wound around both the first winding window and the second winding window.

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