Movable spring part, movable spring armature assembly and electromagnetic relay

Abstract

The utility model relates to a movable spring component, a movable spring armature assembly and an electromagnetic relay. The movable spring component comprises a first movable reed, a first movable contact, a second movable reed, a second movable contact, a first conducting strip, a second conducting strip and a flexible conducting piece. The number of the first movable contacts and the number of the second movable contacts are both at least two, all the first movable contacts are arranged on the first movable reed, and all the second movable contacts are arranged on the second movable reed. The first conducting strip is electrically connected with all the first movable contacts, the second conducting strip is electrically connected with all the second movable contacts, and the flexible conducting piece is electrically connected with the first conducting strip and the second conducting strip. The first conducting strip and the second conducting strip are adopted, so that the current-carrying capacity of the contact part can be improved, and the application requirement of large-current carrying is met. The first conducting strip and the second conducting strip are connected through the flexible conducting piece, and under the deformation effect of the flexible conducting piece, all the contacts can be in effective contact, contact resistance is reduced, and the heating condition in the using process of the electromagnetic relay is reduced.

Description

Technical Field

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

[0002] In common electromagnetic relays, the moving spring structure uses rigid conductive sheets to connect the contacts on both sides. Since the moving contacts are directly set on the rigid conductive sheets, and the rigid conductive sheets do not have the ability to deform, even if the height of multiple moving contacts is the same, due to component assembly errors and manufacturing precision errors, some moving contacts will have good contact while others will have poor contact. This will cause the contacts to overheat when carrying a large current. Utility Model Content

[0003] Therefore, it is necessary to provide a moving spring component, a moving spring armature assembly, and an electromagnetic relay to reduce contact resistance and decrease the heat generated during the use of the electromagnetic relay.

[0004] In a first aspect, this application provides a movable spring component, comprising:

[0005] A first movable spring and a first movable contact, wherein at least two first movable contacts are provided, and all first movable contacts are located on the first movable spring;

[0006] The second moving spring and the second moving contact, wherein at least two second moving contacts are provided, and all second moving contacts are provided on the second moving spring;

[0007] A first conductive sheet is electrically connected to all the first moving contacts;

[0008] A second conductive sheet, the second conductive sheet being electrically connected to all the second moving contacts; and

[0009] A flexible conductive element, wherein the flexible conductive element is electrically connected to the first conductive sheet and the second conductive sheet.

[0010] In one embodiment, the first movable spring includes at least two first elastic arms, all of which are arranged side by side and spaced apart, and all of the first elastic arms correspond one-to-one with all of the first movable contacts.

[0011] In one embodiment, the first movable spring further includes a first connecting piece, which is connected to the first end of all the first elastic arms, and the first movable contact is located at the second end of the first elastic arm.

[0012] In one embodiment, the first movable spring further includes a first limiting hook, which is disposed on the first connecting piece. The first limiting hook engages with one end of the first conductive piece near the first connecting piece, and the first limiting hook is used to restrict the first conductive piece from moving towards the stationary spring component under the impact of an external force.

[0013] In one embodiment, the first limiting hook includes a first connecting portion and a first limiting portion. In the direction from the first end to the second end of the first elastic arm, the first connecting portion is disposed above the first conductive sheet and connected to the first connecting sheet. The first limiting portion is disposed on the side of the first conductive sheet away from the first elastic arm. The first limiting portion and the first connecting portion are connected to form an inverted L-shape. There is a first preset distance between the first limiting portion and the side of the first conductive sheet away from the first elastic arm.

[0014] In one embodiment, the second movable spring includes at least two second elastic arms, all of which are arranged side by side and spaced apart, and all of the second elastic arms correspond one-to-one with all of the second movable contacts.

[0015] In one embodiment, the second movable spring further includes a second connecting piece, which is connected to the first end of all the second elastic arms, and the second movable contact is located at the second end of the second elastic arm.

[0016] In one embodiment, the second movable spring further includes a second limiting hook, which is disposed on the second connecting piece. The second limiting hook engages with one end of the second conductive piece near the second connecting piece, and the second limiting hook is used to restrict the second conductive piece from moving towards the stationary spring component under the impact of an external force.

[0017] In one embodiment, the second limiting hook includes a second connecting portion and a second limiting portion. In the direction from the first end to the second end of the second elastic arm, the second connecting portion is disposed above the second conductive sheet and connected to the second connecting sheet. The second limiting portion is disposed on the side of the second conductive sheet away from the second elastic arm. The second limiting portion and the second connecting portion are connected to form an inverted L-shape. There is a second preset distance between the second limiting portion and the side of the second conductive sheet away from the second elastic arm.

[0018] In one embodiment, the flexible conductive element is a metal braided wire.

[0019] In one embodiment, the first conductive sheet and the second conductive sheet are arranged side by side and spaced apart, the first conductive sheet is arranged corresponding to the first movable spring sheet, and the second conductive sheet is arranged corresponding to the second movable spring sheet.

[0020] In one embodiment, the first movable spring and the second movable spring are arranged side by side, and the center of all the first movable contacts and the center of all the second movable contacts are at the same height;

[0021] The first moving spring and the second moving spring can be an integral structure or a separate structure.

[0022] Secondly, this application also provides a movable spring armature assembly, comprising:

[0023] armature; and

[0024] The armature is connected to the aforementioned moving spring component.

[0025] In one embodiment, the moving spring armature assembly further includes a plastic component disposed between the armature and the moving spring component, wherein the armature, the plastic component, and the moving spring component are connected to form an inverted L-shape.

[0026] Thirdly, this application also provides an electromagnetic relay, comprising:

[0027] Base;

[0028] The contact portion includes a stationary spring component and the aforementioned movable spring component. The stationary spring component includes a first stationary spring plate, a first stationary contact, a second stationary spring plate, and a second stationary contact. Both the first and second stationary spring plates are disposed on the base. At least two first and second stationary contacts are provided. All first stationary contacts are located on the first stationary spring plate, and all second stationary contacts are located on the second stationary spring plate.

[0029] The magnetic circuit section includes a coil frame, an iron core, and an armature. The coil frame is mounted on the base and has a shaft hole. The iron core is located in the shaft hole. The armature is connected to the first moving spring and the second moving spring. The armature can cooperate with the pole face of the iron core so that all the first moving contacts and all the first stationary contacts are in one-to-one contact or disconnection.

[0030] In one embodiment, the first stationary spring and the second stationary spring are arranged side by side, and the center of all the first stationary contacts and the center of all the second stationary contacts are at the same height.

[0031] The aforementioned moving spring component, moving spring armature assembly, and electromagnetic relay utilize a first conductive plate and a second conductive plate. This enhances the current-carrying capacity of the contact portion, meeting the application requirements for high-current carrying capacity. Since both the first and second moving contacts are provided in at least two configurations, the moving spring component and the stationary spring component cooperate to form at least two parallel conductive circuits. Furthermore, each conductive circuit is a bridge-type contact series structure, which helps reduce contact resistance and thus lowers the temperature rise of the electromagnetic relay. Using a flexible conductive element to connect the first and second conductive plates allows for effective contact between the contacts under the deformation of the flexible conductive element, reducing contact resistance and minimizing heat generation during electromagnetic relay operation. Attached Figure Description

[0032] Figure 1 This is a perspective view of an electromagnetic relay according to an embodiment of this application.

[0033] Figure 2 for Figure 1 The right view of the electromagnetic relay shown.

[0034] Figure 3 This is a perspective view of a moving spring armature assembly according to an embodiment of this application.

[0035] Figure 4 for Figure 3 The front view of the moving spring armature assembly shown.

[0036] Figure 5 for Figure 3 The rear view of the moving spring armature assembly shown.

[0037] Figure 6 for Figure 3 The right view of the moving spring armature assembly shown.

[0038] Explanation of icon numbers:

[0039] 10. Base; 20. Moving spring armature assembly; 21. Moving spring component; 211. First moving spring; 2111. First elastic arm; 2112. First connecting piece; 2113. First limiting hook; 21131. First connecting part; 21132. First limiting part; 212. First moving contact; 213. Second moving spring; 2131. Second elastic arm; 2132. Second connecting piece; 2133. Second limiting hook; 21331. Second connecting part; 21332. Second limiting part; 214. Second moving contact; 215. First conductive piece; 216. Second conductive piece; 217. Flexible conductive component; 22. Armature; 23. Plastic part; 30. Stationary spring component; 31. First stationary spring; 32. Second stationary spring; 40. Coil frame; 50. Coil; 60. Iron core; 70. Yoke. Detailed Implementation

[0040] 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.

[0041] This application provides an electromagnetic relay, including a base 10, a contact portion, and a magnetic circuit portion.

[0042] See Figure 1 and Figure 2 The contact portion includes a stationary spring component 30 and a movable spring component 21. The stationary spring component 30 is disposed on the base 10 and is fixed relative to the base 10. The movable spring component 21 is movably disposed and, under the action of the magnetic circuit, can move towards the stationary spring component 30 so that the movable spring component 21 and the stationary spring component 30 cooperate to form a conductive circuit.

[0043] See Figure 2 The magnetic circuit includes a coil frame 40, an iron core 60, an armature 22, and a yoke 70. The coil frame 40 is mounted on the base 10, and a coil 50 is wound around it. The coil frame 40 has a shaft hole, and the iron core 60 is disposed within the shaft hole. The yoke 70 includes a first section and a second section. The first section is connected to the bottom end of the iron core 60, and the second section is located outside the coil frame 40. The first and second sections are connected to form an L-shape. The armature 22 is movably mounted at the knife edge of the second section and engages with the pole face of the iron core 60 opposite to that of the first section. A reset elastic element is provided between the armature 22 and the second section, allowing the armature 22 to reset under the action of the reset elastic element.

[0044] When coil 50 is energized, a magnetic field is generated around iron core 60. Under the influence of this magnetic field, armature 22 overcomes the force of the reset elastic element and attracts iron core 60, thereby driving moving spring component 21 to move closer to stationary spring component 30. This allows moving spring component 21 and stationary spring component 30 to cooperate and form a conductive circuit, thus enabling the working circuit to conduct. When coil 50 is de-energized, the magnetic field disappears, and armature 22 moves away from stationary spring component 30 under the influence of the reset elastic element, causing moving spring component 21 to separate from stationary spring component 30, thus cutting off the working circuit.

[0045] In one embodiment, see Figure 3 and Figure 4 The movable spring component 21 includes a first movable spring 211 and a second movable spring 213. The first movable spring 211 is provided with at least two first movable contacts 212, and the second movable spring 213 is provided with at least two second movable contacts 214.

[0046] Optionally, see Figure 4 The first moving spring 211 and the second moving spring 213 are arranged side by side, and the center of all the first moving contacts 212 and the center of all the second moving contacts 214 are at the same height.

[0047] Optionally, both the first moving spring 211 and the second moving spring 213 are made of stainless steel. In this way, the first moving spring 211 and the second moving spring 213 have the characteristics of high strength, weak conductivity, and high temperature resistance.

[0048] In one embodiment, see Figure 1 and Figure 2 The stationary spring component 30 includes a first stationary spring 31 and a second stationary spring 32. Optionally, the first stationary spring 31 and the second stationary spring 32 are arranged side by side, the first stationary spring 31 is arranged opposite to the first moving spring 211, and the second stationary spring 32 is arranged opposite to the second moving spring 213.

[0049] Furthermore, the stationary spring component 30 also includes a first stationary contact and a second stationary contact. There are at least two first stationary contacts, all of which are located on the first stationary spring 31, and each first stationary contact corresponds one-to-one with each first moving contact 212. There are at least two second stationary contacts, all of which are located on the second stationary spring 32, and each second stationary contact corresponds one-to-one with each second moving contact 214.

[0050] Optionally, the centers of all the first stationary contacts are at the same height as the centers of all the second stationary contacts.

[0051] When coil 50 is energized, the moving spring component 21 moves towards the stationary spring component 30, causing all the first stationary contacts to make contact with all the first moving contacts 212 in a one-to-one correspondence, and all the second stationary contacts to make contact with all the second moving contacts 214 in a one-to-one correspondence, thus forming at least two parallel conductive circuits. Each conductive circuit includes two sets of contacts, which form a bridge-type contact series structure. One set of contacts includes the mating first stationary contact and the first moving contact 212, and the other set of contacts includes the mating second stationary contact and the second moving contact 214.

[0052] In one embodiment, see Figure 3 The moving spring component 21 also includes a first conductive sheet 215, a second conductive sheet 216, and a flexible conductive element 217. Both the first conductive sheet 215 and the second conductive sheet 216 are rigid structures. The first conductive sheet 215 is electrically connected to all the first moving contacts 212, the second conductive sheet 216 is electrically connected to all the second moving contacts 214, and the flexible conductive element 217 is electrically connected to both the first conductive sheet 215 and the second conductive sheet 216.

[0053] Optionally, see Figure 3 The first conductive sheet 215 and the second conductive sheet 216 are arranged side by side and spaced apart. The first conductive sheet 215 is arranged corresponding to the first moving spring 211, and the second conductive sheet 216 is arranged corresponding to the second moving spring 213.

[0054] Optionally, the first conductive sheet 215 and the second conductive sheet 216 are made of highly conductive materials. This increases the current-carrying area and improves conductivity.

[0055] Optionally, both the first conductive sheet 215 and the second conductive sheet 216 are square sheets. Of course, in other embodiments, the first conductive sheet 215 and the second conductive sheet 216 may also be other shapes, and are not limited thereto.

[0056] Optionally, all the first moving contacts 212 are riveted to the first moving spring 211 and the first conductive sheet 215, and all the second moving contacts 214 are riveted to the second moving spring 213 and the second conductive sheet 216.

[0057] The use of a first conductive sheet 215 and a second conductive sheet 216 can improve the current carrying capacity of the contact part and meet the application requirements of high current carrying capacity.

[0058] Since there are at least two of each of the first stationary contact, the first moving contact 212, the second stationary contact, and the second moving contact 214, all the first stationary contacts are in one-to-one contact with all the first moving contacts 212, and all the second stationary contacts are in one-to-one contact with all the second moving contacts 214, forming at least two parallel conductive circuits. At the same time, each conductive circuit is a bridge-type contact series structure, which helps to reduce the contact resistance between the first moving contact 212 and the first stationary contact, as well as the contact resistance between the second moving contact 214 and the second stationary contact, thereby reducing the temperature rise of the electromagnetic relay.

[0059] A flexible conductive element 217 is used to connect the first conductive sheet 215 and the second conductive sheet 216. Under the deformation of the flexible conductive element 217, all the first moving contacts 212 can make effective contact with all the first stationary contacts, and all the second moving contacts 214 can make effective contact with all the second stationary contacts, thereby reducing contact resistance and reducing the heat generation of the electromagnetic relay during use.

[0060] Thus, the electromagnetic relay in this embodiment can carry a large current, and all moving contacts can make stable contact with all stationary contacts one by one, reducing contact resistance, reducing the heat generated by the large current, and improving the reliability of the electromagnetic relay.

[0061] In one embodiment, the flexible conductive element 217 is a metal braided wire. Thus, the metal braided wire not only has conductivity but also good abrasion resistance.

[0062] Optionally, the flexible conductive element 217 is a copper braided wire or an aluminum braided wire. Of course, in other embodiments, the flexible conductive element 217 may also be a metal wire such as a copper wire or an aluminum wire.

[0063] In one embodiment, see Figure 4 At least two flexible conductive elements 217 are provided. At least one flexible conductive element 217 connects the upper part of the first conductive sheet 215 and the upper part of the second conductive sheet 216, and at least one flexible conductive element 217 connects the lower part of the first conductive sheet 215 and the lower part of the second conductive sheet 216. In this way, the reliability of the connection between the first conductive sheet 215 and the second conductive sheet 216 can be improved.

[0064] It is understood that the upper part of the first conductive piece 215 and the upper part of the second conductive piece 216 refer to the ends of the first conductive piece 215 and the second conductive piece 216 that are close to the armature 22, and the lower part of the second conductive piece 216 refers to the ends of the first conductive piece 215 and the second conductive piece 216 that are away from the armature 22.

[0065] In this embodiment, see Figure 4 Two flexible conductive elements 217 are provided. One flexible conductive element 217 is connected to the upper part of the side of the first conductive sheet 215 near the second conductive sheet 216 and the upper part of the side of the second conductive sheet 216 near the first conductive sheet 215. The other flexible conductive element 217 is connected to the lower part of the side of the first conductive sheet 215 near the second conductive sheet 216 and the lower part of the side of the second conductive sheet 216 near the first conductive sheet 215.

[0066] Of course, in other embodiments, one flexible conductive element 217 may be provided, connecting the middle portion of the first conductive sheet 215 and the middle portion of the second conductive sheet 216. Alternatively, the flexible conductive element 217 may connect the upper portion of the first conductive sheet 215 and the upper portion of the second conductive sheet 216. Alternatively, the flexible conductive element 217 may connect the lower portion of the first conductive sheet 215 and the lower portion of the second conductive sheet 216.

[0067] In one embodiment, see Figure 4 The first movable spring 211 has a bifurcated structure. Specifically, the first movable spring 211 includes at least two first elastic arms 2111. All the first elastic arms 2111 are arranged side by side and spaced apart, and each first elastic arm 2111 corresponds to one of the first movable contacts 212. It can be understood that the first conductive sheet 215 is connected to the first elastic arms 2111 through the first movable contacts 212. In this way, the overtravel and contact pressure of each group of contacts are generated by the deformation of the corresponding first elastic arm 2111, so that each group of contacts does not affect each other, thereby ensuring stable and reliable contact of each group of contacts.

[0068] Further, see Figure 4 The first end of the first elastic arm 2111 is connected to the armature 22, and the second end of the first elastic arm 2111 is disposed away from the armature 22. The first moving contact 212 is disposed at the second end of the first elastic arm 2111. Since the second end of the first elastic arm 2111 is a free end away from the armature 22, the deformation of the second end of the first elastic arm 2111 is relatively large. Distributing the first moving contact 212 at the second end of the first elastic arm 2111 ensures the reliability of contact of each set of contacts.

[0069] In this embodiment, see Figure 4 The first movable spring 211 includes two first elastic arms 2111. There are two first movable contacts 212, which are respectively located at the second ends of the two first elastic arms 2111.

[0070] In one embodiment, see Figure 4 The first movable spring 211 also includes a first connecting piece 2112. The first connecting piece 2112 is connected to the armature 22 and the first ends of all the first elastic arms 2111. In this way, by setting the first connecting piece 2112, all the first elastic arms 2111 are connected to form a whole, which facilitates the connection between the first movable spring 211 and the armature 22.

[0071] In one embodiment, see Figure 4 , Figure 5 and Figure 6 The first movable spring 211 also includes a first limiting hook 2113. The first limiting hook 2113 is disposed on the first connecting piece 2112, and the first limiting hook 2113 is in a limiting engagement with one end of the first conductive piece 215 near the first connecting piece 2112. The first limiting hook 2113 is used to restrict the first conductive piece 215 from moving towards the stationary spring component 30 under the impact of external force.

[0072] Because the first conductive sheet 215 is relatively thick and heavy, the shock resistance of the electromagnetic relay can be improved by setting the first limiting hook 2113. When the electromagnetic relay is subjected to external impact, the first limiting hook 2113 can absorb the impact energy, preventing the moving spring component 21 from making accidental contact with the stationary spring component 30, thereby improving the reliability of the electromagnetic relay under abnormal operating conditions.

[0073] In addition, the first limiting hook 2113 is engaged with the end of the first conductive piece 215 near the first connecting piece 2112, and the first conductive piece 215 is connected to the second end of the first elastic arm 2111 through the first moving contact 212. In this way, the upper and lower ends of the first conductive piece 215 can be limited and fixed to ensure the reliability of the assembly of the first conductive piece 215.

[0074] Optionally, see Figure 4 and Figure 5 A first limiting hook 2113 is provided between two adjacent first elastic arms 2111, and the first limiting hook 2113 is integrally formed with the first connecting piece 2112.

[0075] In one embodiment, see Figure 6 The first limiting hook 2113 is inverted L-shaped. Specifically, the first limiting hook 2113 includes a first connecting part 21131 and a first limiting part 21132. In the direction from the first end to the second end of the first elastic arm 2111, the first connecting part 21131 is disposed above the first conductive sheet 215 and connected to the first connecting sheet 2112. The first limiting part 21132 is disposed on the side of the first conductive sheet 215 away from the first elastic arm 2111. The first limiting part 21132 and the first connecting part 21131 are connected to form an inverted L-shape.

[0076] Further, see Figure 6 There is a first preset distance between the first limiting part 21132 and the side of the first conductive sheet 215 away from the first elastic arm 2111. Here, D1 represents the first preset distance. Because there is a first preset distance between the first limiting part 21132 and the first conductive sheet 215, when the moving spring component 21 moves towards the stationary spring component 30, it can provide clearance for the first conductive sheet 215, allowing the first conductive sheet 215 to have room to move towards the stationary spring component 30, thus avoiding interference between the first conductive sheet 215 and the first limiting hook 2113 when the first conductive sheet 215 moves towards the stationary spring component 30.

[0077] In one embodiment, see Figure 4 and Figure 5 The second movable spring 213 has a bifurcated structure. Specifically, the second movable spring 213 includes at least two second elastic arms 2131. All the second elastic arms 2131 are arranged side by side and spaced apart, and each second elastic arm 2131 corresponds to one of the second movable contacts 214. It can be understood that the second conductive sheet 216 is connected to the second elastic arms 2131 through the second movable contacts 214. In this way, the overtravel and contact pressure of each group of contacts are generated by the deformation of the corresponding second elastic arm 2131, so that each group of contacts does not affect each other, thereby ensuring stable and reliable contact of each group of contacts.

[0078] Further, see Figure 4The first end of the second elastic arm 2131 is connected to the armature 22, and the second end of the second elastic arm 2131 is disposed away from the armature 22. The second moving contact 214 is disposed at the second end of the second elastic arm 2131. Since the second end of the second elastic arm 2131 is a free end away from the armature 22, the deformation of the second end of the second elastic arm 2131 is relatively large. By disposing of the second moving contact 214 at the second end of the second elastic arm 2131, the reliability of each set of contacts can be guaranteed.

[0079] In this embodiment, see Figure 4 The second movable spring 213 includes two second elastic arms 2131. Two second movable contacts 214 are provided, and the two second movable contacts 214 are respectively provided at the second ends of the two second elastic arms 2131.

[0080] In one embodiment, see Figure 4 The second movable spring 213 also includes a second connecting piece 2132. The second connecting piece 2132 is connected to the armature 22 and the first end of all the second elastic arms 2131. In this way, the first connecting piece 2112 connects all the second elastic arms 2131 into a whole, which facilitates the connection between the second movable spring 213 and the armature 22.

[0081] In one embodiment, see Figure 4 , Figure 5 and Figure 6 The second movable spring 213 also includes a second limiting hook 2133. The second limiting hook 2133 is disposed on the second connecting piece 2132, and the second limiting hook 2133 is in limiting engagement with one end of the second conductive piece 216 near the second connecting piece 2132. The second limiting hook 2133 is used to restrict the second conductive piece 216 from moving towards the stationary spring component 30 under the impact of external force.

[0082] Because the second conductive sheet 216 is thicker and heavier, the impact resistance of the product can be improved by setting the second limiting hook 2133. When the electromagnetic relay is subjected to external impact, the second limiting hook 2133 can absorb the impact energy and prevent the moving spring component 21 from making accidental contact with the stationary spring component 30, thereby improving the reliability of the product under abnormal operating conditions.

[0083] Optionally, see Figure 4 A second limiting hook 2133 is provided between two adjacent second elastic arms 2131, and the second limiting hook 2133 is integrally formed with the second connecting piece 2132.

[0084] In one embodiment, see Figure 6The second limiting hook 2133 is inverted L-shaped. Specifically, the second limiting hook 2133 includes a second connecting part 21331 and a second limiting part 21332. In the direction from the first end to the second end of the second elastic arm 2131, the second connecting part 21331 is disposed above the second conductive piece 216 and connected to the second connecting piece 2132. The second limiting part 21332 is disposed on the side of the second conductive piece 216 away from the second elastic arm 2131. The second limiting part 21332 and the second connecting part 21331 are connected to form an inverted L-shape.

[0085] Further, see Figure 6 The second limiting part 21332 and the side of the second conductive piece 216 away from the second elastic arm 2131 have a second preset distance. Here, D2 represents the preset distance. Because the second limiting part 21332 and the second conductive piece 216 have a second preset distance, when the moving spring member 21 moves towards the stationary spring member 30, it can provide clearance for the second conductive piece 216, allowing the second conductive piece 216 to have room to move towards the stationary spring member 30, thus preventing interference between the second conductive piece 216 and the second limiting hook 2133 when the second conductive piece 216 moves towards the stationary spring member 30.

[0086] Optionally, the first preset spacing D1 is equal to the second preset spacing D2.

[0087] In one embodiment, see Figure 4 The first movable spring 211 and the second movable spring 213 are arranged side by side and spaced apart, that is, the first movable spring 211 and the second movable spring 213 are separate structures. In this way, the assembly difficulty of the movable spring component 21 can be reduced, while ensuring the flatness of the first movable spring 211 and the second movable spring 213, thereby ensuring the consistency of the movement of all the first elastic arms 2111 and the second elastic arms 2131.

[0088] Of course, in other embodiments, the first movable spring 211 and the second movable spring 213 are an integral structure. Specifically, the first connecting piece 2112 and the second connecting piece 2132 are connected.

[0089] In one embodiment, see Figure 3 The movable spring component 21 is connected to the armature 22 to form the movable spring armature assembly 20. It can be understood that the movable spring component 21 and the armature 22 are a single unit.

[0090] In one embodiment, see Figure 3 and Figure 4The movable spring armature assembly 20 also includes a plastic part 23. The plastic part 23 is disposed between the movable spring component 21 and the armature 22. Specifically, the end of the plastic part 23 facing away from the armature 22 is connected to the first connecting piece 2112 and the second connecting piece 2132. The plastic part 23 is injection molded with the first movable spring piece 211, the second movable spring piece 213, and the armature 22, separating the movable spring component 21 from the armature 22. The movable spring component 21, the plastic part 23, and the armature 22 are connected to form an L-shape, i.e., the movable spring armature assembly 20 is L-shaped. The movable spring component 21 is vertically arranged, and the armature 22 is horizontally arranged above the movable spring component 21 in the direction from the first end to the second end of the first elastic arm 2111, so that the movable spring armature assembly 20 is an inverted L-shape.

[0091] Optionally, the plastic part 23 is made of engineering plastic, which has high mechanical strength, strong wear resistance and fatigue resistance, and can replace metal as the structural material of the moving spring armature assembly 20.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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 moving spring member, characterized by, The utility model relates to a flexible contact spring, comprising: a first moving spring piece and first moving contacts, the first moving contacts are provided with at least two, all the first moving contacts are arranged on the first moving spring piece; a second moving spring piece and second moving contacts, the second moving contacts are provided with at least two, all the second moving contacts are arranged on the second moving spring piece; a first conductive piece, which is electrically connected with all the first moving contacts; a second conductive piece, which is electrically connected with all the second moving contacts; and a flexible conductive piece, which is electrically connected with the first conductive piece and the second conductive piece. The first moving spring piece comprises at least two first elastic arms, all the first elastic arms are arranged side by side and spaced apart, and all the first elastic arms are arranged one by one corresponding to all the first moving contacts.

2. The moving spring member according to claim 1, wherein The first moving spring piece further comprises a first connecting piece, the first connecting piece is connected with the first end of all the first elastic arms, and the first moving contacts are arranged at the second end of the first elastic arms.

3. The moving spring member of claim 2, wherein The first moving spring piece further comprises a first limiting hook, the first limiting hook is arranged on the first connecting piece, the first limiting hook is limitedly matched with one end of the first conductive piece close to the first connecting piece, and the first limiting hook is used for limiting the movement of the first conductive piece in the direction close to the static spring component under the impact of external force.

4. The moving spring member according to claim 3, wherein The first limiting hook comprises a first connecting part and a first limiting part, in the direction from the first end to the second end of the first elastic arm, the first connecting part is arranged above the first conductive piece and connected with the first connecting piece, the first limiting part is arranged on the side of the first conductive piece away from the first elastic arm, the first limiting part is connected with the first connecting part to form an inverted L shape, and the first limiting part and the side of the first conductive piece away from the first elastic arm have a first preset interval.

5. The moving spring member of claim 4, wherein The second moving spring piece comprises at least two second elastic arms, all the second elastic arms are arranged side by side and spaced apart, and all the second elastic arms are arranged one by one corresponding to all the second moving contacts.

6. The moving spring member of claim 1, wherein The second moving spring piece further comprises a second connecting piece, the second connecting piece is connected with the first end of all the second elastic arms, and the second moving contacts are arranged at the second end of the second elastic arms.

7. The moving spring member of claim 6, wherein The second moving spring piece further comprises a second limiting hook, the second limiting hook is arranged on the second connecting piece, the second limiting hook is limitedly matched with one end of the second conductive piece close to the second connecting piece, and the second limiting hook is used for limiting the movement of the second conductive piece in the direction close to the static spring component under the impact of external force.

8. The moving spring member of claim 7, wherein The second limiting hook comprises a second connecting part and a second limiting part, in the direction from the first end to the second end of the second elastic arm, the second connecting part is arranged above the second conductive piece and connected with the second connecting piece, the second limiting part is arranged on the side of the second conductive piece away from the second elastic arm, the second limiting part is connected with the second connecting part to form an inverted L shape, and the second limiting part and the side of the second conductive piece away from the second elastic arm have a second preset interval.

9. The moving spring member of claim 8, wherein The flexible conductive piece is a metal braided wire.

10. The moving spring member according to any one of claims 1 to 9, characterized by ​ 11. The moving spring member according to any one of claims 1 to 9, wherein The first conductive sheet and the second conductive sheet are arranged side by side and are spaced apart, the first conductive sheet is arranged correspondingly with the first moving sheet, and the second conductive sheet is arranged correspondingly with the second moving sheet.

12. The moving spring member according to any one of claims 1 to 9, characterized by The first moving sheet and the second moving sheet are arranged side by side, and the centers of all the first moving contacts and the centers of all the second moving contacts are at the same height. The first moving sheet and the second moving sheet are of an integral structure or a split structure.

13. A moving coil armature assembly, characterised in that Comprise: An armature; And The moving sheet component according to any one of claims 1 to 12, wherein the armature is connected with the moving sheet component.

14. The moving coil armature assembly of claim 13 wherein, The moving sheet armature assembly further comprises a plastic piece arranged between the armature and the moving sheet component, and the armature, the plastic piece and the moving sheet component are connected to form an inverted L-shaped structure.

15. An electromagnetic relay, characterized by Comprise: A base; A contact part comprising a stationary sheet component and a moving sheet component according to any one of claims 1 to 12, wherein the stationary sheet component comprises a first stationary sheet, a first stationary contact, a second stationary sheet and a second stationary contact, the first stationary sheet and the second stationary sheet are arranged on the base, the first stationary contact and the second stationary contact are each provided with at least two, all the first stationary contacts are arranged on the first stationary sheet, and all the second stationary contacts are arranged on the second stationary sheet; and A magnetic circuit part comprising a bobbin, an iron core and an armature, the bobbin is arranged on the base, the bobbin is provided with a shaft hole, the iron core is arranged in the shaft hole, the armature is connected with the first moving sheet and the second moving sheet, and the armature can cooperate with a pole surface of the iron core to make all the first moving contacts and all the first stationary contacts one-to-one correspondingly contact or break contact and all the first moving contacts and all the first stationary contacts one-to-one correspondingly contact or break contact.

16. The electromagnetic relay according to claim 15, characterized in that The first stationary sheet and the second stationary sheet are arranged side by side, and the centers of all the first stationary contacts and the centers of all the second stationary contacts are at the same height.

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