Movable spring assembly and relay

Abstract

The utility model relates to a movable spring assembly and a relay. The movable spring assembly comprises a movable contact, a current-carrying piece and a movable spring piece, the movable contact is connected with the movable spring piece through the current-carrying piece, the connecting part of the movable contact and the current-carrying piece and the connecting part of the movable spring piece and the current-carrying piece are distributed at intervals, and the movable contact is used for being in contact with a static contact assembly in the relay; the end, close to the current-carrying piece, of the movable reed can move relative to the static contact assembly, so that the movable contact can move in the direction close to or away from the static contact assembly. The movable contact spring provides good elastic deformation capacity for the movable contact spring assembly, the local current-carrying density of the thin-sheet movable contact spring is high, so that local heating of the movable contact spring is serious, a current-carrying piece is arranged between the movable contact spring and the movable contact, the movable contact is made to be far away from the movable contact spring, and the influence of heating of the movable contact spring on the movable contact is reduced. The movable contact is connected with the movable reed through the current-carrying member, and the current-carrying member is large in current-carrying density and high in current-carrying capability, so that the temperature rise near the movable contact is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of relays, and particularly relates to a moving spring assembly and a relay. BACKGROUND

[0002] A relay is a common electronic control device, and is usually applied to an automatic control circuit. The relay comprises a moving spring, a moving contact and a static contact. The moving contact is arranged on the moving spring, and the static contact is arranged on one side of the moving contact. The moving spring mainly has the following two functions: 1. causing deformation to drive the moving contact to move, so as to separate or close the moving contact and the static contact; and 2. conducting and transmitting current.

[0003] In the related art, the moving spring is arranged in the form of a sheet. The sheet-type moving spring has good elasticity and is easier to bend and deform, which is beneficial to driving the moving contact to move. However, the current-carrying cross section of the sheet-type moving spring is small, which will cause the moving spring to generate severe heat near the moving contact. If the moving spring is not arranged in the form of a sheet, the elasticity of the moving spring will be poor and the moving spring will be difficult to bend and deform, which is not conducive to closing or separating the moving contact and the static contact. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a moving spring assembly with good elastic deformation performance and conducive to reducing the temperature rise near the moving contact.

[0005] Therefore, it is necessary to provide a relay which is conducive to closing or separating the moving spring assembly and the static contact assembly and conducive to improving the heat generation near the moving contact.

[0006] In one aspect, a moving spring assembly is provided, which comprises a moving contact, a current-carrying member and a moving spring sheet. The moving contact is connected with the moving spring sheet through the current-carrying member. The connection positions of the moving contact and the current-carrying member and the connection positions of the moving spring sheet and the current-carrying member are spaced apart. The moving contact is used to contact a static contact assembly in a relay. One end of the moving spring sheet close to the current-carrying member is movable relative to the static contact assembly, so that the moving contact can move towards or away from the static contact assembly.

[0007] In one embodiment, the moving contact and the moving spring sheet are spaced apart along a first direction. One end surface of the moving contact has a moving contact surface which is used to contact the static contact assembly. The moving contact surface protrudes from one side surface of the current-carrying member in a second direction. The second direction is perpendicular to the first direction. The cross-sectional area of the current-carrying member in the second direction is greater than the cross-sectional area of the moving spring sheet in the second direction.

[0008] In one of the embodiments, the current-carrying member has a dimension in a third direction smaller than or equal to a dimension of the moving spring piece in the third direction, and has a dimension in the second direction greater than a dimension of the moving spring piece in the second direction, the third direction being perpendicular to the first direction and the second direction respectively.

[0009] In one of the embodiments, the current-carrying member is riveted to the moving spring piece and the moving contact respectively.

[0010] In one of the embodiments, a first riveting protrusion is provided on the current-carrying member, the first riveting protrusion being spaced from the moving contact, a first riveting hole is provided on the moving spring piece, the first riveting hole penetrating through at least one side of the moving spring piece in the second direction, the moving spring piece being riveted to the first riveting hole through the first riveting protrusion;

[0011] And / or, a second riveting hole is provided on an end of the current-carrying member away from the moving spring piece, the second riveting hole penetrating through at least one side of the current-carrying member in the second direction, a part of the moving contact being riveted in the second riveting hole.

[0012] In one of the embodiments, when a part of the moving contact is riveted in the second riveting hole, the moving contact comprises a second riveting protrusion and a contact connected in sequence along the second direction, the second riveting protrusion being riveted in the second riveting hole, the contact being used to contact the stationary contact assembly, the contact protruding from one side of the current-carrying member in the second direction, and the moving contact surface being located on an end surface of the contact away from the second riveting protrusion, the moving spring assembly further comprising a force receiving member connected to the current-carrying member, the force receiving member being provided on a side of the current-carrying member away from the contact, the force receiving member being riveted to the second riveting protrusion, the force receiving member being used to connect to a pushing assembly of the relay.

[0013] In one of the embodiments, the moving spring piece comprises a first flat section, a bent section and a second flat section connected in sequence along the first direction, the first flat section being located on a side of the second flat section in the second direction, an end of the first flat section away from the bent section being used to connect to a supporting component of the relay, and an end of the second flat section away from the bent section being connected to the current-carrying member.

[0014] In another aspect, a relay is also provided, comprising a stationary contact assembly and the moving spring assembly described above, the stationary contact assembly comprising a stationary spring piece and a stationary contact provided on the stationary spring piece, the moving contact in the moving spring assembly being capable of closing or separating from the stationary contact.

[0015] In one of the embodiments, the static contact assembly and the dynamic spring assembly each have two groups, the static contact assembly and the dynamic spring assembly correspond to each other, the corresponding static contact assembly and the dynamic spring assembly form a contact mechanism, the dynamic spring assembly and the static contact assembly are oppositely arranged in the same contact mechanism, and the dynamic contact in the dynamic spring assembly can be closed or separated from the static contact in the static contact assembly in the same contact mechanism, and the static spring sheet in one of the contact mechanisms serves as a support component and is connected with the dynamic spring sheet in the other contact mechanism.

[0016] In one of the embodiments, the magnetic circuit assembly includes a rotating shaft, an armature and an insulating piece, the rotating shaft is connected with the armature through the insulating piece, and the two ends of the armature protrude from the two sides of the insulating piece in the first direction away from each other, the pushing assembly has two groups, the two groups of the pushing assembly are respectively distributed on the opposite sides of the insulating piece in the first direction, the pushing assembly corresponds to the dynamic spring assembly, each group of the pushing assembly includes a swing arm and a push rod, the push rods in the two groups of the pushing assembly are respectively connected with the armature through the corresponding swing arms, and the ends of the two push rods away from the armature are respectively connected with the force receiving members in the corresponding dynamic spring assemblies.

[0017] The dynamic spring assembly, the dynamic spring sheet provides good elastic deformation capability for the dynamic spring assembly, and the dynamic spring sheet drives the current carrying member and the dynamic contact to move when the dynamic spring sheet elastically moves, so that the dynamic contact on the current carrying member can be separated or closed with the static contact assembly on the relay. It can be understood that the local current carrying density of the thin dynamic spring sheet is high, and therefore the local heating of the dynamic spring sheet is more serious. In the dynamic spring assembly in the present application, the current carrying member is arranged between the dynamic spring sheet and the dynamic contact, the current carrying member is a conductor, the dynamic contact is connected with the dynamic spring sheet through the current carrying member, and the connection positions of the dynamic contact and the current carrying member and the connection positions of the dynamic spring sheet and the current carrying member are spaced apart. In this way, the connection positions of the dynamic contact and the current carrying member and the connection positions of the dynamic spring sheet and the current carrying member are not overlapped, so that the dynamic contact is away from the dynamic spring sheet, and the influence of the heating of the dynamic spring sheet on the dynamic contact is reduced. In addition, the dynamic contact is connected with the dynamic spring sheet through the current carrying member, the current carrying density of the current carrying member is large, and the current carrying capacity is high, so that the temperature rise near the dynamic contact is reduced. In the dynamic spring assembly, the dynamic contact is connected with the dynamic spring sheet through the current carrying member, and the dynamic spring assembly has good elastic deformation performance under the cooperation of the dynamic spring sheet and the current carrying member, and the temperature rise near the dynamic contact is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structural diagram of the dynamic spring assembly in one of the embodiments of the present application is shown.

[0019] Figure 2Figure 6 is a perspective view of the moving spring assembly of the contact mechanism of some embodiments of the present application.

[0020] Figure 3 Figure 7 is a perspective view of the moving spring assembly of the contact mechanism of some embodiments of the present application.

[0021] Figure 4 Figure 8 is a perspective view of the relay of some embodiments of the present application.

[0022] Figure 5 Figure 9 is a perspective view of the contact mechanism of some embodiments of the present application.

[0023] Figure 6 Figure 10 is a perspective view of the contact mechanism of some embodiments of the present application.

[0024] Figure 7 Figure 11 is a perspective view of the contact mechanism of some embodiments of the present application.

[0025] In the drawings:

[0026] 1, moving spring assembly; 11, moving spring piece; 111, first straight section; 1111, third riveting hole; 112, bending section; 113, second straight section; 12, current carrying piece; 13, moving contact; 131, second riveting protrusion; 132, contact head; 1321, moving contact surface; 14, first riveting protrusion; 15, force receiving piece; 151, connecting section; 152, force receiving section; 1521, clamping portion; 2, static contact assembly; 21, static spring piece; 22, static contact; 3, magnetic circuit assembly; 31, armature; 32, rotating shaft; 33, insulating piece; 4, pushing assembly; 41, swinging arm; 42, push rod; 100, contact mechanism. DETAILED DESCRIPTION

[0027] 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 and it is therefore contemplated that the present application covers any and all modifications of the present application within the scope of the present application. For the purpose of clarity, technical material that is known in the technical fields related to the application have not been described below in detail.

[0028] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, 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 application and simplifying the description, and do not indicate or imply 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 a limitation on the application.

[0029] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. 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 this application can be understood according to the specific circumstances.

[0031] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be 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" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it is to be understood that when an element such as a layer, film, region, or substrate is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the term "about" when used in reference to a particular recited numerical value, means that the value can vary from the recited value by no more than 1%, 2%, 5%, or 10%. As used herein, the terms "horizontal" and "vertical" are intended to refer to the orientation of the device as it is typically oriented for use, unless otherwise noted. As used herein, the term "substantially" means that the recited characteristic, parameter, or value need not be achieved exactly, but that deviations, if any, are insignificant in terms of equipment function, appearance, or performance.

[0033] Referring to Figure 1 , Figure 2 and Figure 3 , Figure 1 FIG. 1 shows a perspective view of a spring assembly according to some embodiments, Figure 2 FIG. 2 shows a perspective view of a spring assembly according to some embodiments, Figure 3 FIG. 3 shows a perspective view of a spring assembly according to some embodiments. Some embodiments provide a spring assembly 1, which is mainly used in a relay. The spring assembly 1 includes a movable contact 13, a spring 11, and a current carrying member 12. The movable contact 13 is connected to the spring 11 through the current carrying member 12. The connection between the movable contact 13 and the current carrying member 12 and the connection between the spring 11 and the current carrying member 12 are spaced apart. Referring to Figure 4The moving contact 13 is used to contact with the static contact assembly 2 in the relay, and the end of the moving spring 11 close to the current-carrying member 12 can move relative to the static contact assembly 2, so that the moving contact 13 can move towards or away from the static contact assembly 2, to realize the closing or separation of the moving contact 13 and the static contact assembly 2. In actual implementation, the end of the moving spring 11 away from the current-carrying member 12 is connected with the supporting component in the relay, and the moving spring assembly 1 is provided with positioning and support by the supporting component, so that the moving spring assembly 1 can move within a certain range, to realize the closing or separation of the moving spring assembly 1 and the static contact assembly 2 in the relay. The moving spring 11 provides good elastic deformation capability for the moving spring assembly 1, and the elastic movement of the moving spring 11 drives the movement of the current-carrying member 12 and the moving contact 13, so that the moving contact 13 on the current-carrying member 12 can be separated or closed with the static contact assembly 2 on the relay. It can be understood that the local current-carrying density of the thin moving spring 11 is high, so the local heating of the moving spring 11 is more serious. In the moving spring assembly 1 in the present application, the current-carrying member 12 is arranged between the moving spring 11 and the moving contact 13, the current-carrying member 12 is a conductor, the moving contact 13 is connected with the moving spring 11 through the current-carrying member 12, and the connection positions of the moving contact 13 and the current-carrying member 12 and the moving spring 11 and the current-carrying member 12 are spaced apart, so that the connection positions of the moving contact 13 and the current-carrying member 12 and the moving spring 11 and the current-carrying member 12 are not overlapped, so that the moving contact 13 is away from the moving spring 11, and the influence of the heating of the moving spring 11 on the moving contact 13 is reduced. In addition, the moving contact 13 is connected with the moving spring 11 through the current-carrying member 12, the current-carrying density of the current-carrying member 12 is larger, and the current-carrying capacity is higher, so the temperature rise near the moving contact 13 is reduced. In such a moving spring assembly 1, the moving contact 13 is connected with the moving spring 11 through the current-carrying member 12, which can make the moving spring assembly 1 have good elastic deformation performance under the cooperation of the moving spring 11 and the current-carrying member 12, and is also conducive to reducing the temperature rise near the moving contact 13.

[0034] In some embodiments, referring to Figures 1 to 4 , the moving contact 13 and the moving spring 11 are spaced apart along the first direction, and one end surface of the moving contact 13 has a moving contact surface 1321 which is used to contact with the static contact assembly 2, the moving contact surface 1321 protrudes from one side surface of the current-carrying member 12 in the second direction, the second direction is perpendicular to the first direction, and the cross-sectional area of the current-carrying member 12 in the second direction is larger than the cross-sectional area of the moving spring 11 in the second direction. It should be noted that, referring to Figures 1 to 4The first direction is the length direction of the moving spring assembly 1, i.e. the direction indicated by the X arrow in the figure, and the second direction is the thickness direction of the moving spring assembly 1, i.e. the direction indicated by the Z arrow. It should be noted that the "cross section of the current-carrying member 12 in the second direction" refers to the cross section formed on the current-carrying member 12 when the current-carrying member 12 is cut along the second direction and towards the third direction, and the "cross section of the moving spring sheet 11 in the second direction" refers to the cross section formed on the moving spring sheet 11 when the moving spring sheet 11 is cut along the second direction and towards the third direction. The third direction is perpendicular to the first direction and the second direction, and in this embodiment, the third direction is the width direction of the moving spring assembly 1, i.e. the direction indicated by the Y arrow. The cross-sectional area of the current-carrying member 12 in the second direction (i.e. the direction indicated by the Z arrow) is greater than the cross-sectional area of the moving spring sheet 11 in the second direction (i.e. the direction indicated by the Z arrow), which is conducive to increasing the current-carrying area of the current-carrying member 12 and improving the current-carrying capacity of the moving spring assembly 1 near the moving contact 13, and at the same time, increasing the heat dissipation area of the current-carrying member 12, which is conducive to cooling the area near the moving contact 13.

[0035] Referring to Figure 2 , the size D1 of the current-carrying member 12 in the third direction is equal to or less than the size D2 of the moving spring sheet 11 in the third direction, i.e. D1≤D2, and the size H1 of the current-carrying member 12 in the second direction is greater than the size H2 of the moving spring sheet 11 in the second direction, i.e. H1>H2. The third direction is perpendicular to the first direction and the second direction. In this embodiment, the third direction is the width direction of the moving spring assembly 1, i.e. the direction indicated by the Y arrow. The size D1 of the current-carrying member 12 in the third direction is equal to or less than the size D2 of the moving spring sheet 11 in the third direction, so that the current-carrying member 12 does not protrude from the moving spring sheet 11 in the third direction, which makes the moving spring assembly 1 more compact with other components in the relay, which is conducive to the miniaturization design of the relay. In addition, in the case where the cross-sectional area of the current-carrying member 12 in the second direction is greater than the cross-sectional area of the moving spring sheet 11 in the second direction, the size D1 of the current-carrying member 12 in the third direction is equal to or less than the size D2 of the moving spring sheet 11 in the third direction, so that the size of the current-carrying member 12 in the second direction is greater than the size H2 of the moving spring sheet 11 in the second direction, i.e. H1>H2. The thicker current-carrying member 12 can ensure hardness and rigidity, which is conducive to the rapid closing or separation of the moving contact 13 and the static contact assembly 2.

[0036] In actual implementation, it is preferred that the size D1 of the current-carrying member 12 in the third direction is equal to the size D2 of the moving spring sheet 11 in the third direction, i.e. D1=D2, which can align the two sides of the current-carrying member 12 in the width direction with the two sides of the moving spring sheet 11 in the width direction, thereby enhancing the current-carrying capacity of the current-carrying member 12 as much as possible without increasing the overall width of the moving spring assembly 1.

[0037] Of course, in other embodiments, the dimension D1 of the current-carrying member 12 in the third direction can be greater than the dimension D2 of the moving spring piece 11 in the third direction, and the dimension of the current-carrying member 12 in the third direction is not specifically limited herein.

[0038] In some embodiments, referring to Figure 1 and Figure 2 , the current-carrying member 12 is riveted with the moving spring piece 11 and the moving contact 13, respectively, and the moving spring piece 11 protrudes from the side of the current-carrying member 12 in the second direction (i.e., the direction indicated by the Z arrow). In this embodiment, the moving contact surface 1321 of the moving spring piece 11 and the moving contact 13 protrude from two opposite sides of the current-carrying member 12 in the second direction, respectively. Of course, in other embodiments, the moving spring piece 11 and the moving contact surface 1321 can protrude from the same side of the current-carrying member 12 in the second direction. Riveting the current-carrying member 12 with the moving spring piece 11 and the moving contact 13 makes the connection between the current-carrying member 12 and the moving contact 13 and between the moving spring piece 11 and the moving contact 13 more secure, which is conducive to prolonging the service life of the moving spring assembly 1.

[0039] Specifically, continuing to refer to Figure 1 and Figure 2 , the moving spring assembly 1 further includes a first riveting protrusion 14, which is arranged on the current-carrying member 12 and spaced from the moving contact 13. The moving spring piece 11 is provided with a first riveting hole (not shown in the figure), which penetrates at least one side of the moving spring piece 11 in the second direction, and the current-carrying member 12 is riveted with the first riveting protrusion 14 and the first riveting hole. The first riveting protrusion 14 is a conductive body, and in this embodiment, the first riveting hole penetrates the opposite sides of the moving spring piece 11 in the second direction, which is conducive to increasing the contact part of the first riveting protrusion 14 with the moving spring piece 11. This can not only enhance the connection structure of the moving spring piece 11 and the current-carrying member 12, but also increase the current-carrying area between the moving spring piece 11 and the current-carrying member 12, which is conducive to slowing down the temperature rise at the connection position of the current-carrying member 12 and the moving spring piece 11.

[0040] In actual implementation, in order to enhance the connection structure of the current-carrying member 12 and the moving spring piece 11, two or more first riveting holes can be arranged on the moving spring piece 11, and the number of the first riveting protrusions 14 can also be two or more, with each first riveting protrusion 14 corresponding to a first riveting hole. This can increase the connection part of the current-carrying member 12 and the moving spring piece 11. In this example, three first riveting holes are arranged on the moving spring piece 11, and the current-carrying member 12 is riveted with the moving spring piece 11 through the three first riveting protrusions 14.

[0041] Further, the current-carrying member 12 is provided with a second riveting hole (not shown in the figure) at one end away from the moving spring sheet 11, the second riveting hole penetrates at least one side of the current-carrying member 12 in the second direction (i.e. the direction indicated by the Z arrow), and part of the moving contact 13 is riveted in the second riveting hole. Preferably, the second riveting hole penetrates both sides of the current-carrying member 12 in the second direction, so that the moving contact 13 can protrude from both sides of the current-carrying member 12 in the second direction, thereby increasing the contact area between the moving contact 13 and the current-carrying member 12 as much as possible, which is conducive to improving the heating condition.

[0042] Referring to Figure 3 and Figure 4 , when part of the moving contact 13 is riveted in the second riveting hole, the moving contact 13 includes a second riveting protrusion 131 and a contact 132 connected in sequence in the second direction (i.e. the direction indicated by the Z arrow), the second riveting protrusion 131 is riveted in the second riveting hole, the contact 132 is used to contact the static contact assembly 2, and the contact 132 protrudes from one side of the current-carrying member 12 in the second direction (i.e. the direction indicated by the Z arrow), and the moving contact surface 1321 is located at the end face of the contact 132 away from the second riveting protrusion 131. The moving spring assembly 1 further includes a force receiving member 15 connected with the current-carrying member 12, the force receiving member 15 is arranged on the side of the current-carrying member 12 away from the contact 132, the force receiving member 15 is riveted with the second riveting protrusion 131, and the force receiving member 15 is connected with the pushing assembly 4 of the relay. The pushing assembly 4 applies a pushing force to the force receiving member 15, and due to the elastic deformation capability of the moving spring sheet 11, the force receiving member 15 can drive the current-carrying member 12 and the moving contact 13 to move, thereby realizing the closing or separation of the moving spring assembly 1 and the static contact assembly 2. The contact 132 and the force receiving member 15 are arranged on opposite sides of the current-carrying member 12 in the second direction, so that the force receiving member 15 does not interfere with the position of the contact 132, preventing the force receiving member 15 from blocking the contact 132 from contacting the static contact assembly 2. In the present example, there is a gap between the force receiving member 15 and the moving spring sheet 11, preventing the force receiving member 15 from contacting the moving spring sheet 11 and affecting the elastic deformation of the moving spring sheet 11.

[0043] In some embodiments, referring to Figure 1 , Figure 3 , Figure 4 and Figure 5 , the force receiving member 15 includes a connecting section 151 and a force receiving section 152 connected with the connecting section 151, the force receiving section 152 is suspended on one side of the current-carrying member 12, and the connecting section 151 is riveted on the current-carrying member 12 through the second riveting protrusion 131, so that the force receiving member 15, the current-carrying member 12 and the moving contact 13 are connected together, which is conducive to improving the compactness of the overall structure. At least one end of the force receiving section 152 in the third direction (i.e. the direction indicated by the Y arrow) has a clamping portion 1521, and the pushing assembly 4 is clamped with the clamping portion 1521, thereby realizing the connection between the pushing assembly 4 and the force receiving member 15.

[0044] In some embodiments, with reference to Figure 1 and Figure 3 , the moving spring piece 11 comprises a first flat section 111, a bending section 112 and a second flat section 113 connected in sequence in the first direction (i.e. the direction indicated by the X arrow), the first flat section 111 is arranged on one side of the second flat section 113 in the second direction, the end of the first flat section 111 away from the bending section 112 is connected with the support component of the relay, and the end of the second flat section 113 away from the bending section 112 is connected with the current-carrying piece 12. The first flat section 111 is connected with the second flat section 113 through the bending section 112, and the bending section 112 is used to buffer the stress received by the moving spring piece 11, which is conducive to improving the overall flexibility of the moving spring piece 11.

[0045] In some embodiments, with reference to 1 and Figure 4 , a relay is also provided, which comprises the static contact assembly 2 and the moving spring assembly 1 of any of the above embodiments, the static contact assembly 2 comprises the static spring piece 21 and the static contact 22 arranged on the static spring piece 21, and the moving contact 13 in the moving spring assembly 1 can be closed or separated from the static contact 22. The moving spring piece 11 provides good elastic deformation capability for the moving spring assembly 1, and when an acting force is applied to the current-carrying piece 12, the moving contact 13 on the current-carrying piece 12 can be closed or separated from the static contact assembly 2 of the relay. The moving spring piece 11 is a thin piece, and local heating is relatively serious. The moving contact 13 is connected with the moving spring piece 11 through the current-carrying piece 12, so that the moving contact 13 is away from the moving spring piece 11, which reduces the influence of the heating of the moving spring piece 11 on the moving contact 13. The moving contact 13 is connected with the moving spring piece 11 through the current-carrying piece 12, and the current-carrying density of the current-carrying piece 12 is relatively large, which is conducive to reducing the temperature rise near the moving contact 13. Therefore, in the relay of the present application, the moving spring assembly 1 can be well closed or separated from the static contact assembly 2, and the heating near the moving contact 13 can be improved.

[0046] In some embodiments, with reference to Figure 4 and Figure 5 , the static contact assembly 2 and the moving spring assembly 1 each have two groups, the static contact assembly 2 and the moving spring assembly 1 correspond to each other, and the corresponding static contact assembly 2 and moving spring assembly 1 form a contact mechanism 100. The moving spring assembly 1 and the static contact assembly 2 in the same contact mechanism 100 are arranged opposite to each other, and the moving contact 13 in the moving spring assembly 1 can be closed or separated from the static contact 22 in the static contact assembly 2 in the same contact mechanism 100. The static spring piece 21 in one of the contact mechanisms 100 serves as a support component and is connected with the moving spring piece 11 in the other contact mechanism 100, i.e. the static spring piece 21 in the static contact assembly 2 also serves as a support component of the relay, and no other components need to be additionally arranged in the relay as a support component, which is conducive to optimizing the structure of the relay and reducing the overall size of the relay. With reference to Figure 1 , Figure 6 and Figure 7The first flat section 111 of the moving spring piece 11 is provided with a third riveting hole 1111, and the static contact 132 in one contact mechanism 100 is riveted in the third riveting hole 1111 of the moving spring piece 11 in the other contact mechanism 100. In addition, the static spring piece 21 in one contact mechanism 100 is connected with the moving spring piece 11 in the other contact mechanism 100, so that the moving spring assembly 1 and the static contact assembly 2 in two different contact mechanisms 100 are electrically connected, and when the two groups of moving spring assemblies 1 respectively contact the corresponding static contact assemblies 2, the two contact mechanisms 100 are connected in parallel, which can effectively improve the current carrying capacity of the relay.

[0047] In some embodiments, referring to Figure 4 The relay further comprises a magnetic circuit assembly 3 and a pushing assembly 4. The magnetic circuit assembly 3 comprises a rotating shaft 32, an armature 31 and an insulating piece 33. The rotating shaft 32 is connected with the armature 31 through the insulating piece 33, so that the armature 31, the insulating piece 33 and the rotating shaft 32 are connected as a whole, and the two ends of the armature 31 respectively protrude from the two sides of the insulating piece 33 in the first direction, so that the rotating shaft 32 can drive the armature 31 to rotate. In the embodiment, the insulating piece 33 is a plastic piece, and the armature 31 and the rotating shaft 32 are injection molded in the plastic piece. The pushing assembly 4 has two groups, and the two groups of pushing assemblies 4 are respectively distributed on the opposite sides of the insulating piece 33 in the first direction (i.e. the direction indicated by the X arrow). The pushing assembly 4 corresponds to the moving spring assembly 1 one by one, and each group of pushing assemblies 4 comprises a swing arm 41 and a push rod 42. The push rods 42 in the two groups of pushing assemblies 4 are respectively connected with the armature 31 through the corresponding swing arms 41, and the ends of the two swing arms 41 away from the armature 31 are respectively connected with the force receiving pieces 15 in the corresponding moving spring assemblies 1. The end of the push rod 42 away from the armature 31 is provided with a clamping groove (not shown in the figure), and the clamping part 1521 of the force receiving piece 15 is clamped in the clamping groove. The rotation of the armature 31 around the rotating shaft 32 can drive the two swing arms 41 to move, so as to push the moving contact 13 to approach or move away from the corresponding static contact 22, so as to realize the closing or separation of the moving spring assembly 1 and the corresponding static contact assembly 2.

[0048] In order for the push rod 42 to adapt to the position change of the moving spring assembly 1, the push rod 42 is rotatably connected with the swing arm 41, so that the included angle between the push rod 42 and the swing arm 41 is adjustable.

[0049] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0050] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A movable spring assembly, characterized in that, It includes a moving contact, a current-carrying element, and a moving spring. The moving contact is connected to the moving spring through the current-carrying element. The connection points between the moving contact and the current-carrying element and between the moving spring and the current-carrying element are spaced apart. The moving contact is used to contact the stationary contact assembly in the relay. The end of the moving spring near the current-carrying element can move relative to the stationary contact assembly so that the moving contact can move towards or away from the stationary contact assembly.

2. The moving spring assembly according to claim 1, characterized in that, The moving contact and the moving spring are spaced apart along a first direction. One end face of the moving contact has a moving contact surface that contacts the static contact assembly. The moving contact surface protrudes from one side of the current-carrying member in a second direction. The second direction is perpendicular to the first direction. The cross-sectional area of ​​the current-carrying member in the second direction is greater than the cross-sectional area of ​​the moving spring in the second direction.

3. The moving spring assembly according to claim 2, characterized in that, The dimension of the current-carrying element in the third direction is less than or equal to the dimension of the movable spring in the third direction, and the dimension of the current-carrying element in the second direction is greater than the dimension of the movable spring in the second direction. The third direction is perpendicular to the first direction and the second direction, respectively.

4. The moving spring assembly according to claim 2, characterized in that, The current-carrying component is riveted to the moving spring and the moving contact, respectively.

5. The moving spring assembly according to claim 4, characterized in that, It also includes a first riveting protrusion, which is disposed on the current-carrying component and spaced apart from the moving contact. The moving spring is provided with a first riveting hole, which penetrates at least one side of the moving spring in the second direction. The moving spring is riveted to the first riveting hole through the first riveting protrusion. And / or, the end of the current-carrying member away from the moving spring is provided with a second riveting hole, the second riveting hole penetrating at least one side of the current-carrying member in the second direction, and a portion of the moving contact is riveted in the second riveting hole.

6. The moving spring assembly according to claim 5, characterized in that, When the moving contact is partially riveted in the second riveting hole, the moving contact includes a second riveting protrusion and a contact connected sequentially along the second direction. The second riveting protrusion is riveted in the second riveting hole. The contact is used to contact the static contact assembly, and the contact protrudes from one side of the current-carrying member in the second direction. The moving contact surface is located at one end face of the contact away from the second riveting protrusion. The moving spring assembly also includes a force-receiving member connected to the current-carrying member. The force-receiving member is disposed on the side of the current-carrying member away from the contact. The force-receiving member is riveted to the second riveting protrusion and is used to connect to the push assembly of the relay.

7. The moving spring assembly according to any one of claims 2 to 6, characterized in that, The movable spring includes a first straight section, a bent section, and a second straight section connected in sequence in the first direction. The first straight section is located on one side of the second straight section in the second direction. The end of the first straight section away from the bent section is used to connect to the support component of the relay, and the end of the second straight section away from the bent section is connected to the current-carrying component.

8. A relay, characterized in that, The assembly includes a static contact component and a moving spring assembly as described in any one of claims 1 to 7, wherein the static contact component includes a static spring sheet and a static contact disposed on the static spring sheet, and the moving contact in the moving spring assembly is capable of closing or separating from the static contact.

9. The relay according to claim 8, characterized in that, Both the stationary contact assembly and the moving spring assembly have two sets, and the stationary contact assembly and the moving spring assembly correspond one-to-one. The corresponding stationary contact assembly and the moving spring assembly form a contact mechanism. In the same contact mechanism, the moving spring assembly is arranged opposite to the stationary contact assembly, and the moving contact in the moving spring assembly can close or separate from the stationary contact in the stationary contact assembly within the same contact mechanism. The stationary spring in one of the contact mechanisms serves as a support component and is connected to the moving spring in the other contact mechanism.

10. The relay according to claim 9, characterized in that, It also includes a magnetic circuit assembly and a push assembly. The magnetic circuit assembly includes a rotating shaft, an armature, and an insulator. The rotating shaft is connected to the armature through the insulator, and the two ends of the armature protrude from opposite sides of the insulator in a first direction. The push assembly has two sets, which are respectively distributed on opposite sides of the insulator in the first direction. The push assembly corresponds one-to-one with the moving spring assembly. Each set of the push assembly includes a swing arm and a push rod. The push rods in the two sets of push assemblies are respectively connected to the armature through the corresponding swing arm. The ends of the two push rods away from the armature are respectively connected to the force-receiving components in the corresponding moving spring assembly.

Images