Movable contact assembly, contact system and relay thereof

Abstract

The invention provides a movable contact assembly, a contact system and a relay thereof, a movable contact spring is provided with a movable contact, the movable contact spring is provided with at least two movable contact spring shaft holes, a pressure spring is in elastic contact with the movable contact spring, the pressure spring is provided with at least two pressure spring shaft holes, the number of mandrels is configured to be at least two, and the number of the mandrels is configured to be at least two. And each core shaft is arranged in one movable spring shaft hole of the movable spring sheet and one pressure spring shaft hole of the pressure spring sheet in a penetrating manner. The number of the mandrels is at least two, and the pressure spring sheet and the movable spring sheet are relatively assembled by using only one mandrel. Therefore, the two or more mandrels between the movable reed and the pressure reed can prevent the movable contact assembly from generating fixed-axis rotation based on a fixed-axis rotation axis provided by one mandrel, and the two or more mandrels are utilized to resist the circumferential rotation of the movable contact assembly. Therefore, accurate counterpoint contact between the movable contact of the contact assembly and the static contact of the static contact assembly can be ensured, and the contact stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of relays, in particular to a moving contact assembly, a contact system and a relay thereof. BACKGROUND

[0002] As a control component, a relay is a driving component for controlling a large current with a small current, which is widely used in aerospace, automobile, household appliance, industrial control and other fields. With the rapid development of the Internet field, an Internet data center is a key to support Internet services, and a magnetic latching relay is usually used in the power supply circuit thereof as a power supply switching control to ensure that when the main power supply fails, the relay can quickly switch to a backup power supply to realize power supply and reduce the loss of failure.

[0003] In the working process of the relay, the moving contact assembly needs to realize the contact or separation between the moving contact and the static contact of the static contact assembly. Therefore, the contact stability between the moving contact and the static contact determines the working stability of the relay. However, in the related art, the moving contact assembly of the relay is prone to deflection in rapid movement when switching, which affects the contact stability between the moving contact and the static contact, and thus easily causes power supply failure, which is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0004] Therefore, it is necessary to provide a moving contact assembly, a contact system and a relay thereof aiming at the above-mentioned technical problems.

[0005] The present application provides a moving contact assembly, which comprises:

[0006] A moving spring sheet is provided with a moving contact, and the moving spring sheet is provided with at least two moving spring shaft holes;

[0007] A compression spring sheet is in elastic contact with the moving spring sheet, and the compression spring sheet is provided with at least two compression spring shaft holes;

[0008] A plurality of core shafts are arranged, each of which is arranged in one of the moving spring shaft holes of the moving spring sheet and one of the compression spring shaft holes of the compression spring sheet;

[0009] A receiving piece is connected with the core shafts, the compression spring sheet is located between the moving spring sheet and the receiving piece, and the receiving piece is in elastic abutment with the compression spring sheet.

[0010] In one embodiment, the receiving piece is provided with at least two receiving shaft holes, each of the core shafts is arranged in one of the moving spring shaft holes of the moving spring sheet, one of the compression spring shaft holes of the compression spring sheet and one of the receiving shaft holes of the receiving piece; and / or,

[0011] the core shaft is fixedly connected with the receiving member; and / or,

[0012] the core shaft is movably connected with the moving spring shaft hole; and / or,

[0013] the core shaft is movably connected with the compression spring shaft hole; and / or,

[0014] the moving spring sheet has an X-axis direction and a Y-axis direction, and the moving spring shaft holes are distributed along the Y-axis direction on the moving spring sheet; and / or,

[0015] the compression spring sheet comprises a compression spring central part and two compression spring extension parts located on both sides of the compression spring central part, and the compression spring shaft hole is located in the compression spring central part; the receiving member elastically abuts against the compression spring central part of the compression spring sheet; the width of the compression spring extension part gradually decreases along the direction away from the compression spring central part, and the outer end of the compression spring extension part is provided with a curved abutting part which elastically abuts against the moving spring sheet.

[0016] In one of the embodiments, the core shaft comprises a first shaft segment, a second shaft segment and a limiting shaft end which are sequentially connected, the diameter of the first shaft segment is different from the diameter of the second shaft segment; the first shaft segment movably penetrates the compression spring shaft hole of the compression spring sheet, and the first shaft segment is fixedly connected with the receiving member; the second shaft segment movably penetrates the moving spring shaft hole of the moving spring sheet; the limiting shaft end is in limiting contact with the moving spring sheet on the side of the moving spring sheet away from the compression spring sheet; the diameter of the first shaft segment is smaller than the diameter of the second shaft segment; and / or,

[0017] the moving spring shaft holes are linearly distributed along the Y-axis direction on the moving spring sheet; and / or,

[0018] the number of the moving spring shaft holes is configured to be two; and / or,

[0019] the compression spring shaft holes are distributed along the Y-axis direction on the compression spring sheet relative to the moving spring sheet; and / or,

[0020] the number of the compression spring shaft holes is configured to be two; and / or,

[0021] the moving spring sheet is provided with two moving contacts which are distributed along the X-axis direction on the moving spring sheet.

[0022] The application provides a contact system, which comprises:

[0023] a moving member having a mounting hole, the moving member being configured to be movably assembled to a base of a relay;

[0024] The dynamic contact assembly is installed on the moving part by a locking member, the locking member comprises a gland and a plurality of elastic arms, the gland is located outside the moving part and abuts against the moving part, the elastic arms are arranged through the mounting holes and can be locked by the elastic force of the elastic arms to tightly hold the moving part, so that the gland can press the dynamic contact assembly on the moving part.

[0025] In one of the embodiments, the number of the elastic arms and the mounting holes are both set to two and correspond to each other one by one, the two elastic arms are inclined in the direction of approaching or moving away from each other, so that the two elastic arms can rebound in the direction of approaching or moving away from each other, and the rebounding direction of the elastic arms is parallel or perpendicular to the length direction of the moving part.

[0026] In one of the embodiments, one end of the elastic arm away from the gland is provided with a clamping jaw, the clamping jaw extends in the rebounding direction of the elastic arm and abuts against the outer wall of the moving part; and / or,

[0027] One side of the gland facing the moving part is provided with a first limiting part, one side of the moving part facing the gland is provided with a second limiting part, the first limiting part and the second limiting part cooperate to limit the gland in the direction perpendicular to the rebounding direction of the elastic arm; wherein one of the first limiting part and the second limiting part is a groove, and the other is a protrusion inserted into the groove.

[0028] In one of the embodiments, the elastic arm is aligned with the first limiting part in the rebounding direction of the elastic arm, or the elastic arm extends from the second limiting part towards the direction away from the gland.

[0029] In one of the embodiments, the dynamic contact assembly is provided in plurality, the plurality of dynamic contact assemblies are arranged at intervals along the length direction of the moving part; the locking member is provided in at least one, each of the locking members is arranged between the corresponding adjacent two dynamic contact assemblies and press the corresponding adjacent two dynamic contact assemblies on the moving part; and / or,

[0030] The moving part has a plug-in cavity, the plug-in cavity comprises a through hole part and a groove part in communication, the through hole part is used for arranging the dynamic spring piece, and the gland can press the receiving member in the groove part from the slot of the groove part.

[0031] In one of the embodiments, the free end of the first shaft section protrudes out of the receiving member; the groove wall of the groove part facing the through hole part has at least two accommodation grooves, the accommodation grooves are used for accommodating the free end of the corresponding first shaft section;

[0032] The stop portion is located at the junction between the through hole portion and the groove portion and abuts against the receiving member.

[0033] The application provides a relay, comprising:

[0034] A base, an inside of the base has a contact type cavity and a magnetic circuit type cavity, the contact type cavity and the magnetic circuit type cavity are communicated through a linkage channel;

[0035] The contact system is assembled in the contact type cavity;

[0036] A magnetic circuit system is assembled in the magnetic circuit type cavity, and the magnetic circuit system is connected with the contact system in the contact type cavity through the linkage channel.

[0037] When the compression spring sheet and the moving spring sheet are relatively assembled by using a core shaft, the compression spring sheet and the moving spring sheet can have a fixed shaft rotation axis based on the core shaft, so that the compression spring sheet and the moving spring sheet can have fixed shaft rotation based on the fixed shaft rotation axis provided by the core shaft. At this time, the fixed shaft rotation between the compression spring sheet and the moving spring sheet will easily cause the circumferential rotation of the moving contact assembly to deviate, affecting the accurate alignment contact between the moving contact point of the moving contact assembly and the static contact point of the static contact assembly.

[0038] In the above moving contact assembly, contact system and relay, the number of core shafts is at least two, and the compression spring sheet and the moving spring sheet are not relatively assembled by using only one core shaft. Therefore, the two or more core shafts between the moving spring sheet and the compression spring sheet will avoid the fixed shaft rotation of the moving contact assembly based on the fixed shaft rotation axis provided by the core shaft, and will resist the circumferential rotation of the moving contact assembly by using the two or more core shafts, thereby ensuring that the moving contact point of the contact assembly and the static contact point of the static contact assembly can form accurate alignment contact and improving the stability of the contact. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 The cooperation state diagram of the moving contact assembly and the static contact assembly is provided for an embodiment of the application.

[0040] Figure 2 The planar cooperation state diagram of the moving contact assembly and the static contact assembly is shown as in Figure 1

[0041] The three-dimensional structure diagram of the moving contact assembly is provided for an embodiment of the application. Figure 3

[0042] The planar structure diagram of the moving contact assembly is shown as in Figure 4 Figure 3

[0043] ​​ Figure 5 A schematic diagram of the three-dimensional structure of a movable spring provided in one embodiment of the present application.

[0044] Figure 6 For example Figure 5 Schematic diagram of the planar structure of the dynamic reed shown.

[0045] Figure 7 A schematic diagram of the three-dimensional structure of a compression spring provided in one embodiment of the present application.

[0046] Figure 8 For example Figure 7 The planar structural diagram of the compression spring is shown.

[0047] Figure 9 A schematic diagram of the three-dimensional structure of a core shaft provided in one embodiment of the present application.

[0048] Figure 10 A schematic diagram of the three-dimensional structure of a receiving member provided in one embodiment of the present application.

[0049] Figure 11 A first-perspective stereoscopic image of a moving part provided in one embodiment of the present application.

[0050] Figure 12 A second perspective stereoscopic image of a moving part provided in one embodiment of the present application.

[0051] Figure 13 A first-perspective plan view of a contact system provided in accordance with an embodiment of the present application.

[0052] Figure 14 For example Figure 13 AA cross-sectional view of the contact system shown.

[0053] Figure 15 A three-dimensional view of a locking member provided in accordance with one embodiment of the present application.

[0054] Figure 16 A plan view of a locking member provided in accordance with one embodiment of the present application.

[0055] Figure 17 A second perspective plan view of a contact system provided in accordance with an embodiment of the present application.

[0056] Figure 18 A perspective view of a contact system provided in accordance with an embodiment of the present application.

[0057] Figure 19 For example Figure 18 A schematic diagram of the local enlarged structure of the contact system is shown.

[0058] Figure Number:

[0059] 10, moving piece; 30, locking piece;

[0060] 11, mounting hole; 12, second limiting part; 13, insertion cavity; 14, accommodating groove;

[0061] 131, through hole part; 132, groove part; 133, stop part;

[0062] 31, gland; 32, elastic arm; 33, clamping jaw;

[0063] 311, first limiting part;

[0064] 100, dynamic contact assembly; 200, static contact assembly;

[0065] 1000, dynamic spring sheet; 2000, compression spring sheet; 3000, mandrel; 4000, receiving piece;

[0066] 1001, dynamic spring shaft hole; 1100, dynamic contact;

[0067] 2001, compression spring shaft hole; 2100, compression spring center part; 2200, compression spring outer extension part; 2300, bent abutting part;

[0068] 3100, first shaft segment; 3200, second shaft segment; 3300, limiting shaft end;

[0069] 4001, receiving shaft hole. DETAILED DESCRIPTION

[0070] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by persons skilled in the art without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0071] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0072] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0073] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0074] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0075] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0076] Reference Figures 1 to 19As shown, the present application provides a relay, which can include a base, a contact system and a magnetic circuit system, the base serving as an assembly base of the contact system and the magnetic circuit system, and can be designed with a structure facilitating assembly of the contact system and the magnetic circuit system, for example, the interior of the base is provided with a contact cavity and a magnetic circuit cavity, and the contact cavity and the magnetic circuit cavity are communicated through a linkage channel. The contact system is assembled in the contact cavity, the magnetic circuit system is assembled in the magnetic circuit cavity, and the magnetic circuit system is connected with the contact system in the contact cavity through the linkage channel. The base structure of the relay can be designed by those skilled in the art according to actual needs, which is not limited herein.

[0077] Referring to Figures 1 to 10 As shown, the present application provides a moving contact assembly 100, which can include moving spring pieces 1000, compression spring pieces 2000 and mandrels 3000 and other components. The moving spring pieces 1000 are provided with moving contacts 1100, and the moving spring pieces 1000 are provided with at least two moving spring shaft holes 1001. The compression spring pieces 2000 are in elastic contact with the moving spring pieces 1000, and the compression spring pieces 2000 are provided with at least two compression spring shaft holes 2001. The elastic contact between the compression spring pieces 2000 and the moving spring pieces 1000 can be achieved by assembling the two through the mandrels 3000.

[0078] As Figure 3 and Figure 4 shown, the number of mandrels 3000 is configured to be at least two, for example, the mandrels 3000 can be provided in two, three or other numbers, and the number of moving spring shaft holes 1001 and compression spring shaft holes 2001 needs to match the designed number of mandrels 3000, so that each mandrel 3000 can be provided in one moving spring shaft hole 1001 of the moving spring piece 1000 and one compression spring shaft hole 2001 of the compression spring piece 2000, and the compression spring piece 2000 and the moving spring piece 1000 are relatively assembled. At this time, the compression spring piece 2000 and the moving spring piece 1000 can be relatively assembled by two or more mandrels 3000, instead of only one mandrel 3000.

[0079] Suppose the compression spring piece 2000 and the moving spring piece 1000 are relatively assembled by one mandrel 3000, at this time, the compression spring piece 2000 and the moving spring piece 1000 can have one fixed shaft rotation axis based on one mandrel 3000, so that the compression spring piece 2000 and the moving spring piece 1000 can have fixed shaft rotation based on the fixed shaft rotation axis provided by one mandrel 3000. At this time, the fixed shaft rotation between the compression spring piece 2000 and the moving spring piece 1000 will easily cause the moving contact assembly 100 to deviate from circumferential rotation, affecting the accurate alignment contact of the moving contact 1100 of the moving contact assembly 100 and the static contact of the static contact assembly 200.

[0080] Therefore, in the design scheme provided in the application, the number of the mandrels 3000 is at least two, and the compression spring sheet 2000 and the moving spring sheet 1000 are not assembled relative to each other by using only one mandrel 3000. Therefore, the two or more mandrels 3000 between the moving spring sheet 1000 and the compression spring sheet 2000 can avoid the moving contact assembly 100 from rotating about the fixed rotation axis provided by one mandrel 3000, but resist the circumferential rotation of the moving contact assembly 100, thereby ensuring that the dynamic contact point 1100 of the contact assembly and the static contact point of the static contact assembly 200 can form precise alignment contact, and improving the stability of the contact.

[0081] Referring back to FIGS. 1 to 3, Figure 3 and Figure 4 In one embodiment, the moving contact assembly 100 further includes a receiving member 4000 connected with the plurality of mandrels 3000, the compression spring sheet 2000 is located between the moving spring sheet 1000 and the receiving member 4000, and the receiving member 4000 elastically abuts against the compression spring sheet 2000. The receiving member 4000 can be provided in a regular or irregular structure such as a plate structure or a block structure, which can be designed according to actual needs by those skilled in the art, and is not limited herein. In one embodiment, the receiving member 4000 is provided with at least two receiving shaft holes 4001, and each mandrel 3000 is arranged in one moving spring shaft hole 1001 of the moving spring sheet 1000, one compression spring shaft hole 2001 of the compression spring sheet 2000, and one receiving shaft hole 4001 of the receiving member 4000.

[0082] At this time, the mandrel 3000 is fixedly connected with the receiving member 4000, for example, the mandrel 3000 is fixedly arranged in the receiving shaft hole 4001 of the receiving member 4000. The mandrel 3000 is movably connected with the moving spring shaft hole 1001, and the mandrel 3000 is also movably connected with the compression spring shaft hole 2001. In this state, the receiving member 4000 can be fixed relative to the mandrel 3000, and at this time, the moving spring sheet 1000 and the compression spring sheet 2000 can slide relative to the mandrel 3000 in the axial direction of the mandrel 3000.

[0083] Therefore, when the moving contact assembly 100 provided in the application moves close to or away from the static contact assembly 200, and the moving contact assembly 100 contacts or separates relative to the static contact assembly 200, the moving spring sheet 1000 and the compression spring sheet 2000 can slide relative to the mandrel 3000 in the axial direction of the mandrel 3000 after being stressed, thereby forming a buffer and self-adapting adjustment, and improving the stability and safety of the movement.

[0084] Referring back to FIGS. 1 to 3, Figures 3 to 6As shown, in one embodiment, the moving spring sheet 1000 has an X-axis direction and a Y-axis direction, and a plurality of moving spring shaft holes 1001 are distributed along the Y-axis direction on the moving spring sheet 1000. At this time, the plurality of moving spring shaft holes 1001 arranged along the Y-axis direction can enable the mandrel 3000 to be assembled with the moving spring sheet 1000 along the Y-axis direction, and the plurality of mandrels 3000 arranged along the Y-axis direction can allow the moving spring sheet 1000 to be offset in the X-axis direction. For example, in one embodiment, the plurality of moving spring shaft holes 1001 are linearly distributed along the Y-axis direction on the moving spring sheet 1000.

[0085] Correspondingly, the number of moving spring shaft holes 1001 is configured to be two, and a plurality of pressing spring shaft holes 2001 are distributed along the Y-axis direction on the pressing spring sheet 2000 relative to the moving spring sheet 1000, and the number of pressing spring shaft holes 2001 is configured to be two. When the moving spring sheet 1000 is provided with two moving contacts 1100, the two moving contacts 1100 are distributed along the X-axis direction on the moving spring sheet 1000, and the two moving contacts 1100 need to be in contact with the two stationary contacts of the stationary contact assembly 200.

[0086] At this time, if the assembly gap between one pair of moving contacts 1100 and stationary contacts is inconsistent with the assembly gap between the other pair of moving contacts 1100 and stationary contacts, the moving spring sheet 1000 that can be offset in the X-axis direction can be adapted to offset in the X-axis direction after the moving contacts 1100 and the stationary contacts are in contact, based on the relative force formed by the contact, so that the moving spring sheet 1000 can be adapted to offset in the X-axis direction, and the assembly gap between one pair of moving contacts 1100 and stationary contacts can be adapted to be consistent with the assembly gap between the other pair of moving contacts 1100 and stationary contacts, so as to ensure that the two pairs of moving contacts 1100 and stationary contacts are in contact at the same time.

[0087] Referring to Figure 7 and Figure 8 As shown, in one embodiment, the pressing spring sheet 2000 can include a pressing spring center portion 2100 and two pressing spring extension portions 2200 located on both sides of the pressing spring center portion 2100, and the pressing spring shaft hole 2001 is located in the pressing spring center portion 2100. The receiving member 4000 elastically abuts against the pressing spring center portion 2100 of the pressing spring sheet 2000. Among them, the pressing spring center portion 2100 can be designed as a quadrilateral area, the pressing spring extension portion 2200 can be provided as a long strip plate structure, and the width of the pressing spring extension portion 2200 can gradually decrease along the direction away from the pressing spring center portion 2100. At the same time, the outer end of the pressing spring extension portion 2200 is provided with a curved abutting portion 2300, and the curved abutting portion 2300 elastically abuts against the moving spring sheet 1000.

[0088] Referring to Figure 9 and Figure 10As shown, in one embodiment, the mandrel 3000 comprises a first shaft segment 3100, a second shaft segment 3200 and a limiting shaft end 3300 connected in sequence, the first shaft segment 3100 and the second shaft segment 3200 have different diameters. Therefore, the diameters of the first shaft segment 3100 and the second shaft segment 3200 can be designed to match the sizes of the compression spring shaft hole 2001 and the moving spring shaft hole 1001, for example, appropriate clearance fit. In one embodiment, the diameter of the first shaft segment 3100 is smaller than the diameter of the second shaft segment 3200.

[0089] At this time, the first shaft segment 3100 can be movably arranged through the compression spring shaft hole 2001 of the compression spring sheet 2000, and the first shaft segment 3100 is fixedly connected with the receiving member 4000. The second shaft segment 3200 can be movably arranged through the moving spring shaft hole 1001 of the moving spring sheet 1000. The limiting shaft end 3300 has a larger structure size, so that the limiting shaft end 3300 can be in limiting contact with the moving spring sheet 1000 on the side away from the compression spring sheet 2000, preventing the moving spring sheet 1000 and the compression spring sheet 2000 from being separated from the mandrel 3000, and ensuring the assembly stability of the component.

[0090] Continuing to refer to Figures 1 to 19 As shown, regarding the above-mentioned contact system, the contact system can comprise a moving member 10, a moving contact assembly 100 and a static contact assembly 200, the moving member 10 can be configured to be movably assembled in the base of the relay, the moving contact assembly 100 is assembled in the moving member 10 and can move with the moving member 10 on the base. The static contact assembly 200 can be assembled in the base, and the moving contact assembly 100 reciprocating with the moving member 10 can relatively move with the static contact assembly 200, so that the moving contact 1100 of the moving contact assembly 100 and the static contact of the static contact assembly 200 are in contact or separated. The skilled in the art can design the structure of the contact system according to the actual needs, which is not limited here.

[0091] The moving member 10 has a mounting hole 11, the moving contact assembly 100 is mounted on the moving member 10 through a locking member 30, the locking member 30 comprises a gland 31 and a plurality of elastic arms 32, the gland 31 is located outside the moving member 10 and abuts against the moving member 10, the elastic arms 32 are arranged through the mounting hole 11 and can be locked by the elastic force of the elastic arms 32 to tightly hold the moving member 10, so that the gland 31 can press the moving contact assembly 100 on the moving member 10.

[0092] The relay 10 can be an electromagnetic relay, a motor relay, a magnetic latching relay, etc. For example, the relay 10 can be a magnetic latching relay. The moving piece 10 is movably arranged in a contact type cavity, and the dynamic contact assembly 100 is mounted on the moving piece 10 in a press-fit manner by the locking piece 30. The elastic arm 32 of the locking piece 30 has a certain elasticity, so that the elastic arm 32 can be smoothly fitted into the mounting hole 11 of the moving piece 10 after being extruded and deformed, and finally locked by relying on the elastic force of the elastic arm 32 to tightly hold the moving piece 10, so that the gland 31 can press-fit the dynamic contact assembly 100 on the moving piece 10. This does not need to apply a large installation force to the dynamic contact assembly 100 to realize the interference fit with the moving piece 10, which can effectively avoid the pollution of the static and dynamic contacts due to the generation of plastic chips during assembly, improve the reliability of the contact between the static and dynamic contacts, and effectively fasten and position the dynamic contact assembly 100.

[0093] The elastic arm 32 is provided as two, and the two elastic arms 32 are inclined in a direction close to each other, so that the two elastic arms 32 can rebound in a direction close to each other. The elastic arm 32 is inclined to facilitate the rebound of the elastic arm 32, which can effectively hold the moving piece 10. The inclination angle of the elastic arm 32, i.e. the included angle between the elastic arm 32 and the center axis of the locking piece 30, is not specifically limited in this embodiment, as long as the elastic arm 32 can be smoothly inserted into the mounting hole 11 of the moving piece 10, and the elastic arm 32 cannot rebound due to excessive deformation, and the elastic arm 32 can have enough rebound force to clamp the moving piece 10. For example, it is provided as 10°, 15°, 20°, etc.

[0094] In order to make the two elastic arms 32 rebound in a direction close to each other to hold the moving piece 10, the mounting hole 11 is provided as two and corresponds to the elastic arm 32, and the distance between the two mounting holes 11 is less than the minimum distance between the two elastic arms 32 in the natural state.

[0095] The diameter of the mounting hole 11 can be slightly larger than the thickness of the corresponding elastic arm 32. In this way, the elastic arm 32 can be smoothly inserted into the mounting hole 11, and the inner wall of the mounting hole 11 can be prevented from being excessively extruded during the insertion of the elastic arm 32, thereby further reducing the probability of generating plastic chips. The end of the elastic arm 32 away from the gland 31 is provided with a clamping jaw 330, which extends in the rebound direction of the elastic arm 32 and abuts against the outer wall of the moving piece 10. The clamping jaw 330 can limit the elastic arm 32 in the insertion direction of the elastic arm 32 by cooperating with the gland 31, so as to avoid the elastic arm 32 from shaking or even falling off from the mounting hole 11 of the moving piece 10. The clamping jaws 330 of the two elastic arms 32 extend in a direction close to each other.

[0096] In this embodiment, the side of the cover 31 facing the moving piece 10 is provided with a first limiting part 311, and the side of the moving piece 10 facing the cover 31 is provided with a second limiting part 12. The first limiting part 311 cooperates with the second limiting part 12 to limit the cover 31 in a direction perpendicular to the rebound direction of the elastic arm 32. Through the cooperation of the first limiting part 311 and the second limiting part 12, the elastic arm 32 can be limited in a direction perpendicular to the penetrating direction and the rebound direction of the elastic arm 32, avoiding the elastic arm 32 from shaking, so that the movable contact assembly 100 can be firmly installed on the moving piece 10.

[0097] As an example, the second limiting part 12 is a groove, and the first limiting part 311 is a protrusion inserted into the groove. The elastic arm 32 extends from the second limiting part 12 towards the direction away from the cover 31. In this way, the elastic arm 32 can be connected with the second limiting part 12 without being connected with the cover 31, so that the cover 31 has a larger area to press the movable contact assembly 100, and the size of the cover 31 can be reduced, making the structure of the cover 31 more compact. The second limiting part 12 can extend from one end of the cover 31 to the other end in the rebound direction of the elastic arm 32.

[0098] As another example, the first limiting part 311 is a groove, and the second limiting part 12 is a protrusion inserted into the groove. In this example, the elastic arm 32 is aligned with the first limiting part 311 in the rebound direction. In this way, the cooperation of the first limiting part 311 and the second limiting part 12 is not affected, and the cover 31 has more area in the direction perpendicular to the penetrating direction and the rebound direction of the elastic arm 32 to press the movable contact assembly 100.

[0099] In this embodiment, the movable contact assembly 100 is provided in multiple, and the multiple movable contact assemblies 100 are arranged at intervals along the length direction of the moving piece 10. By providing multiple movable contact assemblies 100, the passing area of the current can be increased, so that the relay 10 can be applied to large-current electrical appliances, such as high-performance AI servers. Alternatively, each end of the movable contact assembly 100 in the width direction of the moving piece 10 is provided with a movable contact 211.

[0100] Continuing to refer to Figures 1 to 3The locking member 30 is arranged between the two adjacent dynamic contact assemblies 100 and presses the two adjacent dynamic contact assemblies 100 on the moving member 10. During installation, the two adjacent dynamic contact assemblies 100 are first arranged on the moving member 10, and then the locking member 30 is inserted into the corresponding mounting hole 11 of the moving member 10, so that the two adjacent dynamic contact assemblies 100 are locked, the disassembly and assembly steps of the dynamic contact assembly 100 are simplified, and the number of locking members 30 is reduced. In addition, the arrangement of the locking member 30 and the dynamic contact assembly 100, that is, one locking member 30 corresponds to two dynamic contact assemblies 100, facilitates switching and meets the demand for a large gap.

[0101] In this embodiment, the length direction of the moving member 10 is perpendicular to the rebound direction of the elastic arm 32, that is, the two elastic arms 32 are arranged in the width direction of the moving member 10. In this way, the two elastic arms 32 can be arranged in the middle of the gland 31 in the width direction of the moving member 10, so that the gland 31 has sufficient area at both ends in the length direction of the moving member 10 to press the dynamic contact assembly 100, and the elastic arm 32 has a larger rebound space to effectively hold the moving member 10.

[0102] The moving member 10 has a plug-in cavity 130, which includes a through hole part 131 and a groove part 132 that are communicated with each other. The through hole part 131 is used for passing the dynamic spring sheet 1000, and the gland 31 is used for pressing the receiving member 4000 in the groove part 132 from the groove of the groove part 132. During installation, the dynamic spring sheet 1000 and the receiving member 4000 of the dynamic contact assembly 100 can be arranged in the through hole part 131 and the groove part 132, respectively, on the side of the groove of the groove part 132. After the gland 31 abuts against the groove bottom of the groove part 132, the gland 31 is buckled on the moving member 10, so that the dynamic contact assembly 100 is pressed on the moving member 10.

[0103] The groove wall of the groove part 132 facing the through hole part 131 has at least two accommodation grooves 14 for accommodating the free end of the corresponding first shaft segment 3100, that is, the end of the first shaft segment 3100 away from the limiting shaft end 3300. The groove part 132 can avoid the free end of the first shaft segment 3100, so that the receiving member 4000 can abut against the groove wall of the groove part 132, which can prevent the dynamic contact assembly 100 from shaking in the length direction of the moving member 10 and ensure the installation firmness of the dynamic contact assembly 100 on the moving member 10.

[0104] The plug-in cavity 130 is provided with a stop portion 133 located at the junction between the through hole portion 131 and the groove portion 132 and abutting against the receiving member 4000. The stop portion 133 can limit the receiving member 4000 of the movable contact assembly 100 in the groove portion 132, preventing the movable contact assembly 100 from shaking in the length direction of the moving member 10.

[0105] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be understood that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradictions.

[0106] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A dynamic contact assembly (100), characterized in that: The dynamic contact assembly (100) comprises: A movable spring (1000), wherein the movable spring (1000) is provided with a movable contact (1100), and the movable spring (1000) is provided with at least two movable spring shaft holes (1001); A compression spring piece (2000), wherein the compression spring piece (2000) is in elastic contact with the movable spring piece (1000), and the compression spring piece (2000) is provided with at least two compression spring shaft holes (2001); A core shaft (3000), the number of the core shafts (3000) being configured to be at least two, each core shaft (3000) being provided through one of the movable spring shaft holes (1001) of the movable spring sheet (1000) and one of the compression spring shaft holes (2001) of the compression spring sheet (2000); A receiving member (4000) is connected to the plurality of core shafts (3000), the compression spring sheet (2000) is located between the movable spring sheet (1000) and the receiving member (4000), and the receiving member (4000) is elastically in contact with the compression spring sheet (2000).

2. The dynamic contact assembly (100) according to claim 1, characterized in that: The receiving member (4000) is provided with at least two receiving shaft holes (4001), and each of the core shafts (3000) is passed through one of the dynamic spring shaft holes (1001) of the dynamic spring sheet (1000), one of the compression spring shaft holes (2001) of the compression spring sheet (2000), and one of the receiving shaft holes (4001) of the receiving member (4000); and / or, The core shaft (3000) is fixedly connected to the receiving member (4000); and / or, The core shaft (3000) is movably connected to the dynamic spring shaft hole (1001); and / or, The core shaft (3000) is movably connected to the compression spring shaft hole (2001); and / or, The movable spring piece (1000) has an X-axis direction and a Y-axis direction, and a plurality of movable spring axis holes (1001) are distributed on the movable spring piece (1000) along the Y-axis direction; and / or, The compression spring sheet (2000) comprises a compression spring center portion (2100) and two compression spring extension portions (2200) located on both sides of the compression spring center portion (2100), and the compression spring shaft hole (2001) is located at the compression spring center portion (2100); the receiving member (4000) elastically abuts against the compression spring center portion (2100) of the compression spring sheet (2000); the width of the compression spring extension portion (2200) gradually decreases in a direction away from the compression spring center portion (2100), and the outer end of the compression spring extension portion (2200) is provided with a bent abutment portion (2300), and the bent abutment portion (2300) elastically abuts against the movable spring sheet (1000).

3. The dynamic contact assembly (100) according to claim 2, characterized in that: The core shaft (3000) comprises a first shaft section (3100), a second shaft section (3200) and a limiting shaft end (3300) connected in sequence, the diameter of the first shaft section (3100) and the diameter of the second shaft section (3200) being different; the first shaft section (3100) is movably arranged in the compression spring shaft hole (2001) of the compression spring sheet (2000), and the first shaft section (3100) is fixedly connected to the receiving member (4000); the second shaft section (3200) is movably arranged in the dynamic spring shaft hole (1001) of the dynamic spring sheet (1000); the limiting shaft end (3300) is in limiting contact with the dynamic spring sheet (1000) on a side of the dynamic spring sheet (1000) facing away from the compression spring sheet (2000); the diameter of the first shaft section (3100) is smaller than the diameter of the second shaft section (3200); and / or, A plurality of the dynamic spring shaft holes (1001) are linearly distributed on the dynamic spring piece (1000) along the Y-axis direction; and / or, The number of the dynamic spring shaft holes (1001) is configured to be two; and / or, A plurality of the compression spring shaft holes (2001) are distributed on the compression spring piece (2000) along the Y-axis direction relative to the movable spring piece (1000); and / or, The number of the compression spring shaft holes (2001) is configured to be two; and / or, The movable reed (1000) is provided with two movable contacts (1100), and the two movable contacts (1100) are distributed on the movable reed (1000) along the X-axis direction.

4. A contact system, characterized in that The contact system comprises: A moving part (10), the moving part (10) having a mounting hole (11), the moving part (10) being configured to be movably assembled on a base of a relay; The dynamic contact assembly (100) according to claim 3, wherein the dynamic contact assembly (100) is mounted on the movable member (10) via a locking member (30), the locking member (30) comprising a pressure cover (31) and a plurality of elastic arms (32), the pressure cover (31) being located outside the movable member (10) and abutting against the movable member (10), the elastic arms (32) being passed through the mounting hole (11) and being able to hold the movable member (10) tightly by its own resilience to lock it, thereby enabling the pressure cover (31) to press the dynamic contact assembly (100) onto the movable member (10).

5. The contact system according to claim 4, characterized in that Therefore, the number of the elastic arms (32) and the mounting holes (11) is set to two and they correspond to each other one to one, and the two elastic arms (32) are inclined in a direction approaching or moving away from each other, so that the two elastic arms (32) can rebound in a direction approaching or moving away from each other, and the rebound direction of the elastic arms (32) is parallel or perpendicular to the length direction of the moving member (10).

6. The contact system according to claim 5, characterized in that A claw (33) is provided at one end of the elastic arm (32) away from the pressure cover (31), and the claw (33) extends along the rebound direction of the elastic arm (32) and abuts against the outer wall of the moving member (10); and / or, A first limiting portion (311) is provided on a side of the pressure cover (31) facing the movable member (10), and a second limiting portion (12) is provided on a side of the movable member (10) facing the pressure cover (31). The first limiting portion (311) and the second limiting portion (12) cooperate to limit the pressure cover (31) in a direction perpendicular to the rebound direction of the elastic arm (32); wherein one of the first limiting portion (311) and the second limiting portion (12) is a groove, and the other is a protrusion inserted into the groove.

7. The contact system according to claim 6, characterized in that The elastic arm (32) is aligned with the first limiting portion (311) in its own rebound direction, or the elastic arm (32) extends from the second limiting portion (12) in a direction away from the pressure cover (31).

8. The contact system according to any one of claims 4 to 7, characterized in that The movable contact components (100) are provided in plurality, and the plurality of movable contact components (100) are arranged at intervals along the length direction of the movable member (10); the locking member (30) is provided in at least one, and each locking member (30) is provided between two corresponding adjacent movable contact components (100) and presses the two corresponding adjacent movable contact components (100) onto the movable member (10); and / or, The movable member (10) has an inserting cavity (13), the inserting cavity (13) comprising a through hole portion (131) and a groove portion (132) communicating with each other, the through hole portion (131) being used for the movable spring (1000) to pass through, and the pressing cover (31) being capable of pressing the receiving member (4000) into the groove portion (132) from the notch of the groove portion (132).

9. The contact system according to claim 8, characterized in that The free end of the first shaft segment (3100) extends out of the receiving member (4000); the groove wall of the groove portion (132) facing the through hole portion (131) has at least two accommodating grooves (14), and the accommodating grooves (14) are used to accommodate the corresponding free ends of the first shaft segment (3100); A stopper (133) is provided in the insertion cavity (13); the stopper (133) is located at the junction between the through hole portion (131) and the groove portion (132) and abuts against the receiving member (4000).

10. A relay, characterized in that: The relay comprises: A base, wherein the base has a contact cavity and a magnetic circuit cavity inside, and the contact cavity and the magnetic circuit cavity are connected through a linkage channel; The contact system according to any one of claims 4 to 9, wherein the contact system is assembled in the contact cavity; A magnetic circuit system is assembled in the magnetic circuit cavity, and the magnetic circuit system is driven and connected to the contact system in the contact cavity through the linkage channel.

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