Coil assembly and relay

Abstract

The application relates to a coil assembly and a relay. The coil assembly comprises a coil frame, an enameled wire wound on the coil frame to form a coil, the end of the enameled wire being a lead-out wire, a conductive terminal arranged on the coil frame in a height direction and located outside the coil, the conductive terminal being used for winding and connecting the lead-out wire, and a flexible wire installed on the conductive terminal, one end of the flexible wire being electrically connected with the lead-out wire, and the other end of the flexible wire being used for externally connecting a wire. The lead-out wire and the flexible wire are supported by the conductive terminal, so that the electrical connection of the lead-out wire and the flexible wire is facilitated, and the lead-out wire and the flexible wire do not need to be fixedly connected by using an insulating tape, the use of the insulating tape is reduced, automatic production is easily realized, and production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of relay technology, and in particular to a coil assembly and a relay. Background Technology

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] In the relay coil assembly, the coil is wound on a coil frame, and the lead wire at the end of the coil is connected to a flexible connector to connect the coil to an external power source. Because the flexible connector is relatively soft, connecting it to the lead wire presents difficulties and hinders automated production. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the connection between the flexible wire and the lead wire at the end of the coil in the current relay is difficult and not conducive to automated production. A coil assembly and relay should be provided that can support the lead wire and the flexible wire to facilitate the electrical connection between the lead wire and the flexible wire, making it easy to achieve automated production and improve production efficiency.

[0005] A coil assembly, comprising:

[0006] Coil frame;

[0007] Enamelled wire is wound around the coil frame to form a coil, and the end of the enamelled wire is a lead wire;

[0008] A conductive terminal is disposed along the height direction on the coil frame and located outside the coil; the conductive terminal is used for winding and connecting the lead wire; and

[0009] A flexible connector is installed on the conductive terminal. One end of the flexible connector is electrically connected to the lead wire, and the other end of the flexible connector is used for connecting external wires.

[0010] In this way, the conductive terminals can act as a bridge, supporting the lead wire and the flexible connector to facilitate their electrical connection. Furthermore, there is no need to use insulating tape to fix the lead wire and flexible connector together, reducing the use of insulating tape. At the same time, the lead wire, flexible connector, and conductive terminals are soldered simultaneously, easily enabling automated production and improving production efficiency.

[0011] In one embodiment of this application, the conductive terminal includes a snap-fit ​​member and a winding member, the snap-fit ​​member is mounted on the coil frame, and the winding member is disposed on the snap-fit ​​member along the height direction;

[0012] The lead wire is wound and connected to the winding member, and the flexible connector is installed on the winding member.

[0013] Thus, the coil is snapped into place by the snap-fit ​​connector, and the flexible connector and lead wire are supported by the winding component.

[0014] In one embodiment of this application, the side of the coil frame has a mounting groove, and the snap-fit ​​component is inserted into the mounting groove.

[0015] In this way, the edge conductive terminals can be fixedly mounted to the coil frame in the mounting slot.

[0016] In one embodiment of this application, the snap-fit ​​member and the mounting groove are interference fit, or the snap-fit ​​member has a first snap-fit ​​portion, and the mounting groove has a second snap-fit ​​portion corresponding to the first snap-fit ​​portion, the first snap-fit ​​portion and the second snap-fit ​​portion cooperate to fix the snap-fit ​​member to the mounting groove;

[0017] And / or, the side of the coil frame also has a clearance notch that extends through the mounting groove along the height direction, and the clearance notch accommodates the winding member.

[0018] In this way, the snap-fit ​​component can be reliably fixed to the coil frame, and interference between the winding component and the coil frame can be avoided.

[0019] In one embodiment of this application, the conductive terminal further includes a fixing body, which is disposed at the end of the winding member opposite to the snap-fit ​​member;

[0020] The fixing body has a slot, and one end of the flexible connector passes through the slot and is secured to the fixing body.

[0021] In this way, the fixing body can fix the flexible wire through the slot, making it easy to connect one end of the flexible wire to the lead wire.

[0022] In one embodiment of this application, the fixing body includes two clamping parts, which are arranged opposite to each other and surround the slot. One end of the flexible wire extends through the slot, and the two clamping parts clamp the flexible wire.

[0023] Alternatively, the fixing body is a fixing post, the slot passes through the fixing post along the height direction, and the flexible wire is interference-fitted with the slot.

[0024] Thus, the flexible cable can be fixed by forming a slot around the clamping part, or the slot can be set in the fixing post, and the flexible cable can be fixed by interference fit between the slot and the flexible cable.

[0025] In one embodiment of this application, the fixing body further includes a clamping part, which is bent relative to the winding member. One end of the clamping part is connected to the winding member and is disposed opposite to the winding member to form the slot.

[0026] One end of the flexible connector extends through the slot, and the clamping part presses the flexible connector onto the winding member.

[0027] In this way, the flexible connector is fixed by forming a slot with the clamping part and the winding part.

[0028] In one embodiment of this application, the number of clamping parts is at least two, and the at least two clamping parts are arranged sequentially along the height direction. One end of the flexible wire extends out through the slot of each clamping part in sequence.

[0029] Wherein, the bending directions of two adjacent clamping parts are opposite, or the bending directions of each clamping part are the same.

[0030] In this way, the flexible cable can be reliably fixed through the cooperation of multiple clamping parts.

[0031] In one embodiment of this application, the coil frame includes a mounting base, a top plate, and a winding post. The winding post extends along the height direction. The mounting base and the top plate are disposed at both ends of the winding post. The enameled wire is wound and connected to the winding post. The conductive terminal is disposed on the mounting base and spaced apart from the winding post.

[0032] And / or, the side of the winding member has a protrusion for winding and mounting the lead wire to limit the lead wire in the height direction;

[0033] And / or, the coil assembly further includes a moving iron core and a stationary iron core, the coil frame has a mounting hole extending through the height direction, the stationary iron core is disposed in the mounting hole, the moving iron core is movably mounted in the mounting hole and partially exposed in the coil frame, and the moving iron core can be attracted to or separated from the stationary iron core.

[0034] In this way, the enameled wire is wound around the winding post, and the enameled wire is limited by the mounting base and the top plate. At the same time, after the side of the winding part is provided with a protrusion, the protrusion can block and limit the lead wire, preventing the lead wire from moving up or down in the height direction.

[0035] A relay includes a connection assembly, a contact assembly, and a coil assembly as described in any of the above-described technical features;

[0036] The connecting component is disposed at one end of the coil assembly where the moving iron core extends out of the coil frame. The contact component includes a moving contact and a stationary contact. The moving contact is disposed in the connecting component, and the stationary contact and the moving contact are arranged opposite to each other along the height direction.

[0037] The moving iron core can drive the connecting component and the moving contact to move along the height direction, so that the moving contact can contact or separate from the stationary contact.

[0038] After adopting the above-mentioned coil assembly, the relay supports the lead wire and flexible wire through conductive terminals to facilitate the electrical connection between the lead wire and flexible wire, making it easy to achieve automated production and improve production efficiency. Attached Figure Description

[0039] Figure 1 This is an exploded view of a coil assembly applied to a relay according to an embodiment of this application.

[0040] Figure 2 This is a schematic diagram of the coil assembly according to the first embodiment of this application.

[0041] Figure 3 for Figure 2 A partially exploded view of the coil assembly shown.

[0042] Figure 4 for Figure 3 A schematic diagram of the lead wires wound around the conductive terminals in the coil assembly shown.

[0043] Figure 5 This is a schematic diagram of the coil assembly in the second embodiment of this application.

[0044] Figure 6 for Figure 5 A partially exploded view of the coil assembly shown.

[0045] Figure 7 for Figure 6 A schematic diagram of the lead wires wound around the conductive terminals in the coil assembly shown.

[0046] Figure 8 This is a schematic diagram of the coil assembly in the third embodiment of this application.

[0047] Figure 9 for Figure 8 A partially exploded view of the coil assembly shown.

[0048] Figure 10 for Figure 9 A schematic diagram of the lead wires wound around the conductive terminals in the coil assembly shown.

[0049] Among them: 10, relay; 100, coil assembly; 110, coil frame; 111, mounting base; 112, top plate; 113, mounting slot; 114, clearance notch; 120, coil; 121, lead wire; 130, conductive terminal; 131, snap-fit ​​component; 132, winding component; 1321, protrusion; 133, fixing body; 1331, slot; 140, flexible connector; 150, moving iron core; 160, stationary iron core; 170, yoke; 180, mounting plate; 200, connection assembly; 300, contact assembly; 310, moving contact; 320, stationary contact; 400, base plate; 500, lead terminal. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] Understandably, a relay is an electronic control device. In the relay's coil assembly, the coil is wound on a coil frame, and the lead wire at the end of the coil is connected to a flexible connector to connect the coil to an external power source. Because the flexible connector is relatively soft, connecting it to the lead wire presents difficulties and is not convenient for automated production.

[0057] For this purpose, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 8 This application provides a coil assembly 100. The coil assembly 100 is used in a relay 10. Figure 1 This is an exploded view of a coil assembly 100 applied to a relay 10 according to an embodiment of this application. Figure 2 This is a schematic diagram of the coil assembly 100 according to the first embodiment of this application. Figure 5 This is a schematic diagram of the coil assembly 100 in the second embodiment of this application. Figure 8 This is a schematic diagram of the coil assembly 100 in the third embodiment of this application.

[0058] To better illustrate the specific structure of the coil assembly 100, the structure of the relay 10 will be briefly introduced here. (See also...) Figures 1 to 3 The relay 10 includes at least a connection component 200, a contact component 300, and a coil component 100 as described in this application. The coil component 100 is the power source for the relay 10, and its output terminal is connected to the connection component 200, enabling the connection component 200 to move along the height direction.

[0059] This application is based on Figures 1 to 3 The indicated height direction (vertical, top-bottom, axial) is used as a reference, and this height direction also applies to all components of relay 10, which will not be described again later. The contact assembly 300 includes a moving contact 310 and a stationary contact 320. The stationary contact 320 and the moving contact 310 are arranged opposite each other along the height direction, and the stationary contact 320 is located above the moving contact 310. The moving contact 310 is disposed on the connecting assembly 200 and can move with the connecting assembly 200.

[0060] In this way, the coil assembly 100 can drive the connecting assembly 200 to move the moving contact 310 closer to or further away from the stationary contact 320 along the height direction, so that the moving contact 310 contacts or separates from the stationary contact 320, thereby closing or opening the relay 10. When the coil assembly 100 drives the connecting assembly 200 to move the moving contact 310 upward along the height direction, the moving contact 310 contacts the stationary contact 320, and the relay 10 closes to form a conductive path. When the coil assembly 100 drives the connecting assembly 200 to move the moving contact 310 downward along the height direction, the moving contact 310 separates from the stationary contact 320, and the relay 10 opens to form an open circuit.

[0061] In one embodiment, the relay 10 further includes a base plate 400 and a lead-out terminal 500. The stationary contact 320 is fixedly mounted on the base plate 400, and the lead-out terminal 500 is connected to the base plate 400 and electrically connected to the stationary contact 320. The lead-out terminal 500 can be connected to an external wire to connect the relay 10 to a circuit.

[0062] It is worth noting that the focus of this application is on the coil assembly 100; other structures and working principles of the relay 10 are not the focus of this application and will not be described further below. The specific structures of the coil assembly 100 in some embodiments are described below.

[0063] The coil assembly 100 of this application can support the lead wire 121 and the flexible connector 140 to facilitate the electrical connection between the lead wire 121 and the flexible connector 140. Moreover, there is no need to use insulating tape to fix the lead wire 121 and the flexible connector 140, which reduces the use of insulating tape, makes it easy to achieve automated production, and improves production efficiency.

[0064] See Figures 1 to 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 In one embodiment, the coil assembly 100 includes a coil frame 110, a coil 120, conductive terminals 130, and flexible connectors 140. Enamelled wire (not shown) is wound around the coil frame 110 to form the coil 120, with one end of the enamelled wire serving as a lead wire 121. The conductive terminals 130 are disposed along the height direction on the coil frame 110 and located outside the coil 120; the conductive terminals 130 are used to wind and connect the lead wire 121. The flexible connectors 140 are mounted on the conductive terminals 130; one end of the flexible connectors 140 is electrically connected to the lead wire 121, and the other end of the flexible connectors 140 is used for connecting external wires. Figure 3 for Figure 2 A partially exploded view of the coil assembly 100 shown. Figure 6 for Figure 5 A partially exploded view of the coil assembly 100 shown. Figure 9 for Figure 8 A partially exploded view of the coil assembly 100 shown.

[0065] The coil frame 110 serves as the support for the coil assembly 100, supporting and mounting some components of the coil assembly 100. The coil frame 110 extends along the height direction. Enamelled wire is wound around the coil frame 110 to form a coil 120. When the coil 120 is energized, it generates a magnetic field that produces a certain attractive force, controlling the coil assembly 100 to drive the connecting component 200 to separate the moving contact 310 from the stationary contact 320. When the coil 120 is de-energized, the magnetic field disappears, the coil assembly 100 resets, and the coil assembly 100 can then drive the connecting component 200 to bring the moving contact 310 into contact with the stationary contact 320.

[0066] The end of the enameled wire is a lead wire 121. After the enameled wire is wound and mounted on the coil frame 110 to form a coil 120 (hereinafter referred to as coil 120), the lead wire 121 extends out relative to the wound coil 120 to facilitate the connection of the coil 120 to an external power source. The flexible connector 140 is the component for connecting the coil 120 to an external power source. One end of the flexible connector 140 is electrically connected to the lead wire 121, and the other end of the flexible connector 140 can be connected to a wire and connected to a power source through the wire.

[0067] Understandably, the flexible connector 140 and the lead wire 121 are relatively soft. When connecting the relatively soft flexible connector 140 and the lead wire 121, it is necessary for the operator to connect them manually. In addition, it is necessary to wrap the flexible connector 140 with insulating tape to fix it and to insulate the wrapping position with insulating tape, which makes it difficult to achieve automated production.

[0068] Therefore, the coil assembly 100 of this application has conductive terminals 130 on the coil frame 110. The conductive terminals 130 extend along the height direction, and the lead wire 121 is wound and connected to the conductive terminals 130. A flexible connector 140 is installed on the conductive terminals 130, and one end of the flexible connector 140 is electrically connected to the lead wire 121. That is, the conductive terminals 130 support the lead wire 121 and the flexible connector 140 so that the lead wire 121 and the flexible connector 140 are connected on the conductive terminals 130.

[0069] The conductive terminal 130 is a bridging component that provides support. As a rigid structure, it supports the lead wire 121 and the flexible connector 140. Thus, the conductive terminal 130 acts as a bridging structure between the lead wire 121 and the flexible connector 140, fixing their positions and resolving the issue of the uncertain position and state of both the lead wire 121 and the flexible connector 140, which are both flexible wires.

[0070] Thus, after the conductive terminal 130 supports the lead wire 121 and the flexible connector 140, the lead wire 121 and the flexible connector 140 can be directly electrically connected, so that the position and state of the lead wire 121 and the flexible connector 140 are fixed. The lead wire 121 and the flexible connector 140 do not need to be fixed with insulating tape, which facilitates automated production. Moreover, after the conductive terminal 130 supports the lead wire 121 and the flexible connector 140, the conductive terminal 130, the lead wire 121 and the flexible connector 140 can be directly soldered, which can easily realize automated production.

[0071] In the above embodiment, the coil assembly 100 supports the lead wire 121 and the flexible connector 140 through the conductive terminal 130, so as to facilitate the electrical connection between the lead wire 121 and the flexible connector 140. Moreover, there is no need to use insulating tape to fix the lead wire 121 and the flexible connector 140, which reduces the use of insulating tape, makes it easy to realize automated production, and improves production efficiency.

[0072] See Figure 1In one embodiment, the coil assembly 100 further includes a moving iron core 150 and a stationary iron core 160. The coil frame 110 has a mounting hole extending through the height direction. The stationary iron core 160 is disposed in the mounting hole, and the moving iron core 150 is movably mounted in the mounting hole, partially exposing the coil frame 110. The moving iron core 150 can be attracted to or separated from the stationary iron core 160. The moving iron core 150 and the stationary iron core 160 are the moving parts of the coil assembly 100.

[0073] The moving iron core 150 and the stationary iron core 160 are disposed in the coil frame 110. The coil frame 110 has mounting holes that extend through the coil frame 110 along the height direction. The stationary iron core 160 is fixedly installed in the mounting holes of the coil frame 110, and the moving iron core 150 is partially installed in the mounting holes of the coil frame 110. The stationary iron core 160 and the moving iron core 150 are disposed opposite each other along the height direction, and the moving iron core 150 is located above the stationary iron core 160.

[0074] The moving iron core 150 passes through and extends out of the mounting hole in the coil frame 110. Thus, the moving iron core 150 is partially located within the mounting hole of the coil frame 110 and partially located outside the coil frame 110. The end of the moving iron core 150 located outside the coil frame 110 is connected to the connecting assembly 200. Furthermore, the moving iron core 150 is movably mounted in the mounting hole and can move along the height direction within the mounting hole to move closer to or further away from the stationary iron core 160.

[0075] When the moving iron core 150 approaches the stationary iron core 160 along the height direction, the moving iron core 150 descends along the height direction in the mounting hole. When the moving iron core 150 contacts the stationary iron core 160, the moving iron core 150 and the stationary iron core 160 are attracted together. Moreover, when the moving iron core 150 descends, it can drive the connecting assembly 200 to separate the moving contact 310 from the stationary contact 320, thereby realizing the disconnection control of the relay 10.

[0076] As the moving iron core 150 moves away from the stationary iron core 160 along the height direction, the moving iron core 150 rises along the height direction in the mounting hole, and the moving iron core 150 and the stationary iron core 160 gradually move away from each other until they are completely separated. Moreover, when the moving iron core 150 rises, it can drive the connecting assembly 200 to make the moving contact 310 contact with the stationary contact 320, thereby realizing the closing control of the relay 10.

[0077] In its initial state, the moving iron core 150 of relay 10 is separated from the stationary iron core 160, and the moving contact 310 and the stationary contact 320 are in a closed state. The initial position of the moving iron core 150 is that it is separated from the stationary iron core 160, meaning that relay 10 remains closed. When it is necessary to control relay 10 to open, the moving iron core 150 moves towards the stationary iron core 160 under the magnetic force of the magnetic field, moving to the engaging position, causing the moving iron core 150 and the stationary iron core 160 to engage, thereby controlling the moving contact 310 to open from the stationary contact 320, thus achieving the disconnection control of relay 10.

[0078] Furthermore, when coil 120 is energized, it generates a magnetic field that produces a certain attractive force, controlling the moving iron core 150 to descend along the height direction, so that the moving iron core 150 and the stationary iron core 160 are attracted together. When a reverse voltage is applied to both ends of coil 120, it generates a reverse magnetic field, and the moving iron core 150 can rise along the height direction under the action of the reverse magnetic field, so that the moving iron core 150 and the stationary iron core 160 are separated.

[0079] See Figures 1 to 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 In one embodiment, the coil frame 110 includes a mounting base 111, a top plate 112, and a winding post. The winding post extends along the height direction. The mounting base 111 and the top plate 112 are disposed at both ends of the winding post. Enamelled wire is wound and connected to the winding post. Conductive terminals 130 are disposed on the mounting base 111 and are arranged at intervals from the winding post.

[0080] The winding post is the main component of the coil frame 110 for winding enameled wire. The winding post extends along the height direction. The mounting base 111 and the top plate 112 are located at both ends of the winding post and protrude radially from the outer surface of the winding post. The mounting base 111 and the top plate 112 can limit the axial position of the coil 120 on the winding post. At the same time, the mounting base 111 can also support the installation so that the coil frame 110 can be installed into the yoke 170 (mentioned later) of the coil assembly 100.

[0081] Conductive terminals 130 are disposed on the mounting base 111 and extend along the height direction. The conductive terminals 130 are spaced apart from the winding posts, meaning there is a certain distance between them. Thus, after the coil 120 is wound around the winding posts, the lead wire 121 at the end of the coil 120 can be wound and connected to the conductive terminals 130. The conductive terminals 130 support the lead wire 121 and the flexible connector 140 on the outside of the coil 120.

[0082] See Figures 1 to 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 In one embodiment, the winding post, mounting base 111, and top plate 112 are integrated into a single structure. This ensures the structural strength of the coil frame 110 and simplifies the assembly process, improving production efficiency. Of course, in other embodiments of this application, the winding post, mounting base 111, and top plate 112 can also be separate components, reliably connected via threaded connections or other means.

[0083] See Figures 2 to 10 In one embodiment, the conductive terminal 130 includes a snap-fit ​​member 131 and a winding member 132. The snap-fit ​​member 131 is mounted on the coil frame 110, and the winding member 132 is disposed on the snap-fit ​​member 131 along the height direction. The lead wire 121 is wound and connected to the winding member 132, and the flexible connector 140 is mounted on the winding member 132. Figure 4 for Figure 3 A schematic diagram showing the lead wire 121 wound around the conductive terminal 130 in the coil assembly 100. Figure 7 for Figure 6 A schematic diagram showing the lead wire 121 wound around the conductive terminal 130 in the coil assembly 100. Figure 10 for Figure 9 A schematic diagram of the lead wire 121 wound around the conductive terminal 130 in the coil assembly 100 shown.

[0084] The snap-fit ​​component 131 serves as the base plate 400 for the conductive terminal 130, and the winding component 132 is a component that supports the lead wire 121 and the flexible connector 140. The winding component 132 is vertically disposed on the snap-fit ​​component 131 and extends along the height direction. The snap-fit ​​component 131 can be mounted on the coil holder 110 so that the winding component 132 extends along the height direction. In this way, the winding component 132 can be located outside the coil 120 and wound around and connect the lead wire 121.

[0085] Furthermore, the flexible connector 140 can be mounted on the winding member 132, which can fix the flexible connector 140 in place, thus ensuring its position and state are fixed and facilitating the connection of one end of the flexible connector 140 to the lead wire 121. In this way, after the winding member 132 supports the lead wire 121 and the flexible connector 140, there is no need to use insulating tape to connect them, and it also facilitates soldering of the lead wire 121 and the flexible connector 140, enabling automated production.

[0086] Optionally, the snap-fit ​​element 131 and the wrapping element 132 are an integral structure. That is, the snap-fit ​​element 131 and the wrapping element 132 can be integrally molded, with the wrapping element 132 bent relative to the snap-fit ​​element 131 to ensure the structural strength of the conductive terminal 130 and to reliably support the lead wire 121 and the flexible connector 140. Of course, in other embodiments of this application, the snap-fit ​​element 131 and the wrapping element 132 can also be separate components.

[0087] See Figures 2 to 10 In one embodiment, the side of the winding member 132 has a protrusion 1321 for winding and mounting the lead wire 121 to limit the lead wire 121 in the height direction. The protrusion 1321 is located on the side of the winding member 132 and protrudes from the side of the winding member 132.

[0088] When the lead wire 121 is wound around the winding member 132, the lead wire 121 can be wound around the protrusion 1321. The protrusion 1321 can block and limit the lead wire 121 to prevent the lead wire 121 from moving or falling in the height direction, so as to ensure that the lead wire 121 is accurately positioned on the winding member 132.

[0089] Optionally, there may be multiple protrusions 1321, located on two sides of the winding member 132 and spaced apart along the height direction. Optionally, the outer contour of the protrusions 1321 may be arc-shaped. Of course, in other embodiments of this application, the shape and number of protrusions 1321 may also be other.

[0090] See Figures 2 to 10 In one embodiment, the coil frame 110 has a mounting groove 113 on its side, and the snap-fit ​​member 131 is inserted into the mounting groove 113. That is, the mounting base 111 has a recessed mounting groove 113 on its side. The snap-fit ​​member 131 can be inserted into the mounting groove 113 to fix the conductive terminal 130 onto the coil frame 110.

[0091] See Figures 2 to 10 In one embodiment, the snap-fit ​​member 131 and the mounting slot 113 are interference-fitted. That is, the snap-fit ​​member 131 is inserted into the mounting slot 113 by interference fit, so that the snap-fit ​​member 131 is reliably fixed to the coil frame 110, preventing the conductive terminal 130 from shifting relative to the coil frame 110, so that the conductive terminal 130 can reliably support the lead wire 121 and the flexible connector 140.

[0092] Of course, in other embodiments of this application, the snap-fit ​​member 131 has a first snap-fit ​​portion, and the mounting groove 113 has a second snap-fit ​​portion corresponding to the first snap-fit ​​portion. The first snap-fit ​​portion and the second snap-fit ​​portion cooperate to fix the snap-fit ​​member 131 to the mounting groove 113.

[0093] In other words, the snap-fit ​​member 131 is fixed to the coil frame 110 by the snap-fit ​​engagement of the first snap-fit ​​part and the second snap-fit ​​part, thereby reliably fixing the conductive terminal 130 to the coil frame 110. Optionally, the first snap-fit ​​part and the second snap-fit ​​part are a snap-fit ​​and snap-slot structure, or a structure of two snap-fit ​​engagements.

[0094] See Figures 2 to 10 In one embodiment, the side of the coil holder 110 also has a clearance notch 114, which extends through the mounting groove 113 in the height direction and accommodates the mounting winding member 132. The side of the mounting base 111 is also provided with a clearance notch 114, which is located above the mounting groove 113 and communicates with the mounting groove 113. The clearance notch 114 also extends through the top of the mounting base 111 in the height direction.

[0095] When the snap-fit ​​connector 131 is installed into the mounting slot 113, the winding member 132 will abut against the side of the coil frame 110, causing interference between them and preventing the snap-fit ​​connector 131 from being reliably installed into the mounting slot 113. Therefore, this application provides a clearance notch 114 on the side of the coil frame 110. In this way, when the snap-fit ​​connector 131 is installed into the mounting slot 113, the winding member 132 can be installed into the clearance notch 114. The clearance notch 114 accommodates the winding member 132, preventing interference between the winding member 132 and the coil frame 110, thus ensuring that the snap-fit ​​connector 131 is reliably installed into the mounting slot 113.

[0096] See Figures 2 to 10 In one embodiment, the conductive terminal 130 further includes a fixing body 133, which is disposed at one end of the winding member 132 away from the snap-fit ​​member 131. The fixing body 133 has a slot 1331, through which one end of the flexible wire 140 passes and is snapped into the fixing body 133.

[0097] The fixing body 133 is disposed on the top of the winding member 132. The fixing body 133 can fix the flexible wire 140 so that the position and state of the flexible wire 140 relative to the conductive terminal 130 are fixed, which facilitates the connection of the lead wire 121 to the flexible wire 140.

[0098] Specifically, the fixing body 133 has a slot 1331, which is a slot for fixing the flexible cable 140. One end of the flexible cable 140 can extend through the slot 1331. At this time, the slot 1331 can clamp and fix the flexible cable 140 so that the flexible cable 140 is fixedly installed on the conductive terminal 130, which facilitates the connection of one end of the flexible cable 140 to the lead wire 121.

[0099] See Figures 2 to 4In the first embodiment of this application, the fixing body 133 includes two clamping parts, which are arranged opposite to each other and form a slot 1331. One end of the flexible wire 140 extends through the slot 1331, and the two clamping parts clamp the flexible wire 140.

[0100] Two clamping parts are disposed on the top of the winding member 132, the two clamping parts are arranged opposite each other and extend along the height direction, and the two clamping parts form a slot 1331. It is understood that the structural form of the clamping parts is not limited in principle, as long as it can clamp the flexible cable 140. Optionally, the clamping parts are clamping plates or claws, etc.

[0101] In this way, one end of the flexible connector 140 can extend through the slot 1331. At this time, the flexible connector 140 is inserted into the slot 1331, and the two clamping parts can clamp the flexible connector 140, thereby fixing the position and state of the flexible connector 140, which facilitates the connection of the flexible connector 140 to the lead wire 121.

[0102] See Figures 5 to 7 In the third embodiment of this application, the fixing body 133 further includes a clamping part, which is bent relative to the winding member 132. One end of the clamping part is connected to the winding member 132 and is disposed opposite to the winding member 132 to form a slot 1331. One end of the flexible wire 140 extends through the slot 1331, and the clamping part presses the flexible wire 140 onto the winding member 132.

[0103] One end of the clamping part is connected to the winding member 132, and the other end of the clamping part is a free end. One end of the clamping part is bent relative to the winding member 132 so that the rest of the clamping part is opposite to the winding member 132, and an opening is formed at the free end of the clamping part. In this way, the clamping part and the winding member 132 can form a groove 1331.

[0104] In this way, one end of the flexible connector 140 can extend through the slot 1331. At this time, the flexible connector 140 is engaged in the slot 1331. The clamping part and the winding member 132 cooperate to hold the flexible connector 140, thereby fixing the position and state of the flexible connector 140 and facilitating the connection of the flexible connector 140 with the lead wire 121.

[0105] It is worth noting that the structural form of the clamping part is not limited in principle, as long as the clamping part can fix the flexible cable 140 to the winding member 132. For example, the clamping part can be an elastic arm, etc.

[0106] See Figures 5 to 7In one embodiment, the number of clamping parts is at least two, and the at least two clamping parts are arranged sequentially along the height direction. One end of the flexible cable 140 extends out through the slot 1331 of each clamping part in sequence. Multiple clamping parts are arranged sequentially along the height direction on the winding member 132, so that the flexible cable 140 can be fixed to the winding member 132 at multiple points, thereby achieving reliable fixation of the flexible cable 140.

[0107] See Figures 5 to 7 In one embodiment, the bending directions of two adjacent clamping portions are opposite. That is, the opening directions of two adjacent clamping portions are opposite, so that multiple clamping portions can apply force to the flexible cable 140 in two directions, preventing the flexible cable 140 from dislodging from the slot 1331 at the opening, and reliably fixing the flexible cable 140 to the winding member 132.

[0108] Of course, in other embodiments of this application, the bending direction of each clamping part is the same. That is, the opening direction of two adjacent clamping parts is the same, which can ensure that the flexible cable 140 is reliably fixed, and also facilitate the installation of the flexible cable 140 into the fixing device.

[0109] In this embodiment, there are two clamping parts, which are arranged sequentially along the height direction, and the bending directions of the two clamping parts are opposite. Of course, in other embodiments of this application, the number of clamping parts may be other.

[0110] See Figures 8 to 10 In the third embodiment of this application, the fixing body 133 is a fixing post, and the slot 1331 extends through the fixing post along the height direction. The flexible wire 140 is interference-fitted with the slot 1331. The fixing post has a hollow structure and is located at the top of the winding member 132. The inner cavity of the fixing post is the slot 1331, such as a fixing hole.

[0111] The flexible connector 140 is fitted with the slot 1331 using an interference fit. In this way, one end of the flexible connector 140 can extend through the slot 1331. At this time, the flexible connector 140 is interference fitted into the slot 1331, which fixes the position and state of the flexible connector 140 and facilitates the connection of the flexible connector 140 with the lead wire 121.

[0112] It is worth noting that the above only lists a few structural forms of fixing the flexible cable 140 to the fixing body 133. However, the structure of the fixing body 133 can also be other, as long as it can fix the flexible cable 140. This application will not elaborate further.

[0113] See Figure 1In one embodiment, the coil assembly 100 further includes a yoke 170 and a mounting plate 180. The mounting plate 180 is disposed on the yoke 170 and together with the yoke 170 forms an installation space. The coil frame 110 is disposed in the installation space, and the moving iron core 150 passes through the mounting plate 180 to extend out of the installation space. The yoke 170 is U-shaped, and the coil frame 110 is disposed within the yoke 170. The mounting plate 180 is disposed at the U-shaped opening of the yoke 170, thereby supporting the components above the coil assembly 100.

[0114] When the coil 120 is energized, the yoke 170, mounting plate 180, and moving iron core 150 can form a low magnetic resistance channel, allowing magnetic flux to start from the moving iron core 150, pass through the yoke 170, then through the working air gap, and finally return to the moving iron core 150, forming a complete magnetic circuit, so that the moving iron core 150 can be attracted to the stationary iron core 160 under the attraction of the magnetic field.

[0115] During the assembly of the coil assembly 100, since the conductive terminal 130 is a rigid structure, it can be inserted into the coil frame 110 using an insertion device. Then, the lead wire 121 is wound around the winding member 132. At the same time, a fixing body 133 is provided on the top of the winding member 132 to fix the flexible connector 140, thereby fixing the position and state of the flexible connector 140 and facilitating the electrical connection between the lead wire 121 and the flexible connector 140.

[0116] The coil assembly 100 of this application supports the lead wire 121 and the flexible connector 140 through the conductive terminal 130, so as to facilitate the electrical connection between the lead wire 121 and the flexible connector 140. Moreover, there is no need to use insulating tape to fix the lead wire 121 and the flexible connector 140, which reduces the use of insulating tape, makes it easy to realize automated production, and improves production efficiency.

[0117] Furthermore, the conductive terminal 130 is inserted into the mounting slot 113 of the coil frame 110 via the snap-fit ​​member 131, facilitating the fixed installation of the conductive terminal 130 onto the coil frame 110. Automated production equipment can also be used to insert the conductive terminal 130 onto the coil frame 110, enabling automated production. Simultaneously, a fixing body 133 is provided on the top of the winding member 132, which fixes the flexible connector 140 to the conductive terminal 130, facilitating the connection between the lead wire 121 and the flexible connector 140.

[0118] See Figure 1This application also provides a relay 10, including a connecting component 200, a contact component 300, and a coil component 100 as described in any of the above embodiments. The connecting component 200 is disposed at one end of the coil component 100 where the moving iron core 150 extends out of the coil frame 110. The contact component 300 includes a moving contact 310 and a stationary contact 320. The moving contact 310 is disposed in the connecting component 200, and the stationary contact 320 and the moving contact 310 are arranged opposite each other along the height direction. The moving iron core 150 can drive the connecting component 200 and the moving contact 310 to move along the height direction, so that the moving contact 310 contacts or separates from the stationary contact 320.

[0119] It is worth noting that the specific connection method between the connecting component 200 and the moving iron core 150 is not limited here. After the relay 10 of this application adopts the above-mentioned coil component 100, it is easier to connect the lead wire 121 and the flexible connector 140, and it can also reduce the use of insulating tape, making it easier to realize automated production and improve production efficiency.

[0120] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0121] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A coil assembly, characterized by, include: Coil frame; Enamelled wire is wound around the coil frame to form a coil, and the end of the enamelled wire is a lead wire; A conductive terminal is disposed along the height direction on the coil frame and located outside the coil; the conductive terminal is used to wind and connect the lead wire. as well as A flexible connector is installed on the conductive terminal. One end of the flexible connector is electrically connected to the lead wire, and the other end of the flexible connector is used for connecting external wires.

2. The coil assembly of claim 1, wherein, The conductive terminal includes a snap-fit ​​component and a winding component. The snap-fit ​​component is mounted on the coil frame, and the winding component is disposed on the snap-fit ​​component along the height direction. The lead wire is wound and connected to the winding member, and the flexible connector is installed on the winding member.

3. The coil assembly of claim 2, wherein, The coil frame has a mounting groove on its side, and the snap-fit ​​component is inserted into the mounting groove.

4. The coil assembly of claim 3, wherein, The snap-fit ​​component and the mounting groove are interference fit, or the snap-fit ​​component has a first snap-fit ​​portion, and the mounting groove has a second snap-fit ​​portion corresponding to the first snap-fit ​​portion. The first snap-fit ​​portion and the second snap-fit ​​portion cooperate to fix the snap-fit ​​component to the mounting groove. And / or, the side of the coil frame also has a clearance notch that extends through the mounting groove along the height direction, and the clearance notch accommodates the winding member.

5. A coil assembly according to any one of claims 2 to 4, characterised in that, The conductive terminal further includes a fixing body, which is disposed at the end of the winding member away from the snap-fit ​​member; The fixing body has a slot, and one end of the flexible connector passes through the slot and is secured to the fixing body.

6. The coil assembly of claim 5, wherein, The fixing body includes two clamping parts, which are arranged opposite to each other and surround the slot. One end of the flexible wire extends through the slot, and the two clamping parts clamp the flexible wire. Alternatively, the fixing body is a fixing post, the slot passes through the fixing post along the height direction, and the flexible wire is interference-fitted with the slot.

7. The coil assembly of claim 5, wherein, The fixing body also includes a clamping part, which is bent relative to the winding member. One end of the clamping part is connected to the winding member and is arranged opposite to the winding member to form the slot. One end of the flexible connector extends through the slot, and the clamping part presses the flexible connector onto the winding member.

8. The coil assembly of claim 7, wherein, The number of clamping parts is at least two, and the at least two clamping parts are arranged sequentially along the height direction. One end of the flexible wire extends out through the slot of each clamping part in sequence. Wherein, the bending directions of two adjacent clamping parts are opposite, or the bending directions of each clamping part are the same.

9. The coil assembly of any of claims 2 to 4, wherein, The coil frame includes a mounting base, a top plate, and a winding post. The winding post extends along the height direction. The mounting base and the top plate are disposed at both ends of the winding post. The enameled wire is wound and connected to the winding post. The conductive terminal is disposed on the mounting base and is spaced apart from the winding post. And / or, the side of the winding member has a protrusion for winding and mounting the lead wire to limit the lead wire in the height direction; And / or, the coil assembly further includes a moving iron core and a stationary iron core, the coil frame has a mounting hole extending through the height direction, the stationary iron core is disposed in the mounting hole, the moving iron core is movably mounted in the mounting hole and partially exposed in the coil frame, and the moving iron core can be attracted to or separated from the stationary iron core.

10. A relay characterized by comprising: Includes a connection component, a contact component, and a coil component as described in any one of claims 1 to 9; The connecting component is disposed at one end of the coil assembly where the moving iron core extends out of the coil frame. The contact component includes a moving contact and a stationary contact. The moving contact is disposed in the connecting component, and the stationary contact and the moving contact are arranged opposite to each other along the height direction. The moving iron core can drive the connecting component and the moving contact to move along the height direction, so that the moving contact can contact or separate from the stationary contact.

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