Connecting structure of magnetic circuit part and connector and electromagnet

Abstract

The utility model discloses a magnetic circuit part and connector connection structure and an electromagnet, the magnetic circuit part comprises a magnetic circuit part and a connector, the magnetic circuit part comprises a coil rack and a yoke, the yoke and the coil rack are relatively fixed, an enameled wire is wound on the coil rack, a plurality of coil leading-out pins are arranged on the coil rack, and each end of the enameled wire is respectively wound and connected with the corresponding coil leading-out pins; the connector comprises an insulated support and a plurality of leading-out ends mounted on the support; the support is fixedly connected with the yoke, and the coil leading-out pins are electrically connected with the leading-out ends in a one-to-one mode respectively. The support of the connector is fixedly connected with the yoke, so that the fixing position of the connector is more flexible, the connector can be conveniently arranged according to actual requirements, the yoke has enough area to be connected and matched with the support, and the support is connected with the yoke through plastic and metal, so that the connector is more convenient to realize the connection and fixation of the support, and the connector is more convenient to use. And the connection reliability of the support can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnets or relays, in particular to a magnetic circuit part and a connector connection structure and an electromagnet. Background Art

[0002] During the application of electromagnets, the coils are generally led out by soft connection, that is, the coil terminals of the magnetic circuit part are connected by wires, and then the wires are connected to devices such as PCB boards. However, this method is not conducive to the realization of automatic assembly of products and cannot achieve the sealing requirements of IP5K2. For this reason, some use hard connection to lead out the magnetic circuit part of the electromagnet, that is, the coil terminals of the magnetic circuit part are connected by connectors, and then the connectors are used to connect devices such as PCB boards. This connector usually includes an insulating support and a plurality of lead-out terminals arranged on the support. The lead-out terminals are electrically connected to the coil terminals of the magnetic circuit part one by one. At the same time, the support needs to be fixed on the magnetic circuit part to help ensure that the lead-out terminals are reliably connected to the coil terminals. At present, the support of the connector of the prior art is usually fixed on the coil frame of the magnetic circuit part. However, this method has the following shortcomings: when fixing the connector to the coil frame, it is necessary to avoid the winding window of the coil frame, so it can only be fixed at the upper end or lower end of the coil frame, and the fixed position area is limited. In addition, the support and the coil frame are both made of plastic, which makes it difficult to fix the support and the coil frame, and it is easy to be separated. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides a magnetic circuit part and connector connection structure and an electromagnet, which fixes the support of the connector on the yoke iron of the magnetic circuit part, which is beneficial to improving the connection reliability of the connector support.

[0004] The utility model adopts the following technical solution to solve the technical problem: a magnetic circuit part and connector connection structure, comprising a magnetic circuit part and a connector, the magnetic circuit part comprising a coil frame and a yoke, the yoke and the coil frame are relatively fixed, an enameled wire is wound on the coil frame, and a plurality of coil terminals are provided, each end of the enameled wire is respectively wound and connected to the corresponding coil terminal; the connector comprises an insulating support and a plurality of lead-out terminals mounted on the support; the support is fixedly connected to the yoke, and the plurality of coil terminals are respectively electrically connected to the plurality of lead-out terminals one by one.

[0005] Furthermore, the support is snap-connected to the yoke.

[0006] Furthermore, the support and the yoke are connected by a snap-fit ​​connection to limit the support in a first direction and a second direction. The support and the yoke also cooperate with a limiting structure, which limits the support in at least a third direction. The first direction, the second direction and the third direction are perpendicular to each other, and one of the directions is the axial direction of the coil frame.

[0007] Furthermore, the support is provided with a plurality of snap-in parts, the yoke is provided with a first snap-in slot corresponding to each snap-in part, and each snap-in part is snap-connected to the corresponding first snap-in slot; the snap-in part includes a snap arm and a snap hook at the end of the snap arm, the snap arm is passed through the first snap slot, and the snap hook is hung on the side of the yoke facing away from the support.

[0008] Furthermore, the number of the buckle parts is two, the two buckle parts are arranged along the first direction, and hold the yoke in the first direction, and the first clamping grooves are respectively provided at both ends of the yoke in the first direction, and the first clamping grooves are notch grooves or through hole grooves.

[0009] Furthermore, the limiting structure includes a limiting portion and a limiting groove that are plugged into each other, and one of the limiting portion and the limiting groove is arranged on the support, and the other of the limiting portion and the limiting groove is arranged on the yoke.

[0010] Furthermore, the yoke includes at least one first side and one second side that are integrally formed or fixedly connected, the first side is located on the outside of the coil frame and extends along one side of the axial direction of the coil frame, and the second side is located at one end of the coil frame in the axial direction and is perpendicular to the axial direction of the coil frame; the support is fixedly connected to the first side or the second side of the yoke.

[0011] Furthermore, the multiple coil terminals respectively include a pin body installed on the coil frame and a first terminal arranged on the pin body, and the first terminals of each coil terminal extend in the same direction, and the extending direction is opposite to the direction in which the support is snap-connected with the yoke; the lead-out end includes a second terminal for electrical connection with the first terminal; the first terminal and / or the second terminal is provided with a positioning structure to enable the first terminal and the second terminal to be positioned and matched when the support and the yoke are connected in place, so as to facilitate the welding connection between the first terminal and the second terminal.

[0012] Further, the positioning structure includes a positioning hole provided on the second terminal, and the first terminal is inserted into the positioning hole along its extension direction; or, the positioning structure includes a positioning groove provided on the first terminal, the notch of the positioning groove faces the extension direction of the first terminal, and the second terminal is inserted into the positioning groove; the first terminal is perpendicular to the second terminal.

[0013] Furthermore, the lead-out end also includes a terminal body and a PIN needle, the second terminal and the PIN needle are respectively arranged on the terminal body and extend in the same direction, the terminal body is inserted into a slot corresponding to the support, and is snap-connected with the terminal body.

[0014] Furthermore, the terminal body is provided with a wedge-shaped clamping block, and a second clamping groove is provided on the groove wall of the slot corresponding to the wedge-shaped clamping block, and the wedge-shaped clamping block is clamped into the second clamping groove as the terminal body is inserted into the slot.

[0015] Furthermore, the first terminal is located on the side of the yoke and is wound with a winding head of the enameled wire, and the coil frame is provided with retaining walls between the starting section and the ending section of the enameled wire and the yoke respectively.

[0016] The utility model further provides an electromagnet, comprising the magnetic circuit part and the connector connection structure as described in the utility model, wherein the coil frame and / or the yoke iron are equipped with movable parts.

[0017] Furthermore, the movable component includes a movable iron core inserted into the coil frame, or the movable component includes an armature, which is movably mounted on the yoke and magnetically engaged with one end of the iron core inserted into the coil frame.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The support of the connector of the utility model is fixedly connected to the yoke, which makes the fixing position of the connector more flexible and convenient to set according to actual needs. The yoke has sufficient area to connect and cooperate with the support. The connection between the support and the yoke is a connection between plastic and metal. Therefore, the utility model is more convenient to realize the connection and fixation of the support, and is conducive to improving the connection reliability of the support.

[0020] 2. As a preferred embodiment, the support and the yoke of the utility model are connected by snap-fit ​​connection, which makes the connection structure between the support and the yoke simpler and enables the product to be automatically assembled, thereby greatly improving the assembly efficiency of the connector.

[0021] 3. The support and the yoke of the connector are connected by snaps to limit the support in the first and second directions. The limiting structure of the support and the yoke can further limit the support in at least the third direction, so that the utility model can achieve three-dimensional limiting of the support, thereby further ensuring the reliable fixation of the connector and the yoke, and the structure is simple.

[0022] 4. The first terminal of the coil terminal and / or the second terminal of the lead-out end is provided with a positioning structure, which can enable the first terminal and the second terminal to be pre-positioned when the support and the yoke are connected in place, thereby facilitating the subsequent welding connection between the first terminal and the second terminal, and ensuring the reliability and convenience of the connection between the coil terminal and the lead-out end.

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the magnetic circuit part and the connector connection structure and the electromagnet of the utility model are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an exploded schematic diagram of the utility model of the first embodiment;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the magnetic circuit part of the utility model in the first embodiment;

[0026] Figure 3 It is an exploded schematic diagram of the connector of the utility model in the first embodiment;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the connector of the utility model in the first embodiment;

[0028] Figure 5 is a top view of the connector of the utility model in the first embodiment;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the utility model of the first embodiment;

[0030] Figure 7 Embodiment 1 Figure 6 A top view of

[0031] Figure 8 Embodiment 1 Figure 6 The main view of

[0032] Fig. 9 Embodiment 1 Figure 6 Bottom view of

[0033] Fig.10 It is an exploded schematic diagram of the second embodiment of the utility model;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the utility model of the second embodiment;

[0035] Fig.12 This is a front view of the utility model of embodiment 2;

[0036] Fig.13 It is a right side view of the utility model of the second embodiment;

[0037] Fig.14 It is a bottom view of the utility model of the second embodiment;

[0038] Fig.15 It is an exploded schematic diagram of the utility model of the third embodiment;

[0039] Fig.16 It is a three-dimensional structural schematic diagram of the utility model of the third embodiment;

[0040] Fig.17 It is an exploded schematic diagram of the fourth embodiment of the utility model;

[0041] Fig.18 It is a three-dimensional structural schematic diagram of the fourth embodiment of the utility model;

[0042] Fig.19 This is a front view of the fourth embodiment of the utility model;

[0043] Fig. 20 It is a top view of the fourth embodiment of the utility model;

[0044] Fig.21 It is a bottom view of the fourth embodiment of the utility model;

[0045] In the figure, 10, magnetic circuit part, 1, coil frame, 11, retaining wall, 12, mounting groove, 2, yoke, 21, first side, 211, first slot, 212, limiting slot, 22, second side, 3, enameled wire, 4, coil terminal, 41, first terminal, 411, positioning slot, 42, pin body, 421, coil winding head rod, 20, connector, 5, support, 51, buckle part, 511, buckle arm, 512, buckle hook, 52, limiting part, 53, slot, 54, second slot, 55, dustproof and waterproof groove, 6, lead-out terminal, 61, second terminal, 611, positioning hole, 62, terminal body, 621, wedge-shaped block, 63, PIN needle, 7, moving iron core, 71, mounting plate, 8, armature, 9, recovery spring. DETAILED DESCRIPTION

[0046] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0047] In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Embodiment 1

[0049] See also Figure 1-Figure 9 As shown, a magnetic circuit part and connector connection structure of the utility model includes a magnetic circuit part 10 and a connector 20. The magnetic circuit part 10 includes a coil frame 1 and a yoke 2. The yoke 2 is fixed on the coil frame 1. The coil frame 1 is wound with an enameled wire 3 and is provided with a plurality of coil terminals 4. Each end of the enameled wire 3 is respectively wound and connected to the corresponding coil terminal 4. The connector 20 includes an insulating support 5 and a plurality of lead terminals 6 mounted on the support 5. The support 5 of the connector 20 is fixedly connected to the yoke 2, and the plurality of coil terminals 4 are respectively electrically connected to the plurality of lead terminals 6 one by one. The number of the above-mentioned coil terminals 4 is specifically two, but is not limited thereto. In other embodiments, the number of the coil terminals 4 is three, etc. Correspondingly, the number of the lead terminals 6 is also two.

[0050] In this embodiment, the support 5 is snap-connected to the yoke 2, but the fixed connection method between the two is not limited to this. For example, the following methods can also be used for fixation: the support is connected to the yoke by hot riveting, or the support is fixedly connected to the yoke by sleeve connection combined with interference fit.

[0051] The yoke 2 includes at least one first side 21 and one second side 22 which are integrally formed or fixedly connected. The first side 21 is located outside the coil frame 1 and extends along one side of the axial direction of the coil frame 1. The second side 22 is located at one end of the coil frame 1 in the axial direction and is perpendicular to the axial direction of the coil frame 1. Specifically, in this embodiment, the yoke 2 includes two first sides 21, and the two first sides 21 are respectively located on two opposite sides of the coil frame 1. Therefore, the yoke 2 is roughly U-shaped, such as Figure 1 , Figure 2The support 5 can be snap-connected with the first side 21 of the yoke 2 or the second side 22 of the yoke 2. Specifically, in this embodiment, the support 5 is snap-connected with one of the first sides 21 of the yoke 2.

[0052] The support 5 and the yoke 2 are connected by a snap-fit ​​connection to limit the support 5 in the first direction and the second direction, and the support 5 and the yoke 2 are also matched with a limiting structure, which limits the support 5 in at least the third direction. The first direction, the second direction and the third direction are perpendicular to each other, and one of the first direction, the second direction and the third direction is the axial direction of the coil frame 1. Specifically, in this embodiment, if Figure 1 As shown, the first direction is Figure 1 The direction where the X-axis is located is also the left-right direction, the second direction is the direction where the Y-axis is located, also the front-back direction, and the third direction is the direction where the Z-axis is located, also the axial direction of the coil frame 1, that is, the up-down direction. In this way, the yoke 2 of the utility model can achieve three-dimensional positioning of the connector 20, so that the connector 20 is firmly fixed on the magnetic circuit part 10, and the product can be automatically assembled. In addition to limiting the support 5 in the third direction, the above-mentioned limiting structure can also limit the support 5 in the first direction and / or the second direction. Specifically, in this embodiment, the limiting structure limits the support 5 in the first direction and the third direction at the same time.

[0053] The support 5 is provided with a plurality of snap parts 51, and the yoke 2 is provided with a first snap groove 211 corresponding to each snap part 51, and each snap part 51 is snap-connected to the corresponding first snap groove 211, so that the support 5 holds the yoke 2 in the first direction. The snap part 51 includes a snap arm 511 and a snap hook 512 at the end of the snap arm 511, the snap arm 511 is inserted into the first snap groove 211, and the snap hook 512 is hung on the side of the yoke 2 facing away from the support 5. Specifically, in this embodiment, Figure 3-Figure 5 As shown, the number of the buckle parts 51 is two, but not limited thereto. The two buckle parts 51 are arranged along the first direction and are disposed opposite to each other. The buckle arms 511 of each buckle part 51 extend along one side of the second direction respectively, and the buckle hooks 512 at the ends of the two buckle arms 511 are disposed opposite to each other. Figure 1 , Figure 2 As shown, there are two first slots 211 on the yoke 2, and the two first slots 211 are respectively located at the two ends of the yoke 2 in the first direction, and are notched slots, but not limited to this. In other embodiments, the first slots 211 are through-hole slot structures that are closed on all sides. Since the support 5 is snap-connected to one of the first sides 21 of the yoke 2, the two first slots 211 of the yoke 2 are provided on one of the first sides 21 of the yoke 2.

[0054] The above-mentioned limiting structure includes a limiting portion 52 and a limiting groove 212 which are plugged into each other, and one of the limiting portion 52 and the limiting groove 212 is arranged on the support 5, and the other of the limiting portion 52 and the limiting groove 212 is arranged on the yoke 2. Specifically, as Figure 1 , Figure 2 As shown, the limiting groove 212 is provided on the yoke 2 and is located between the two first clamping grooves 211, and the limiting groove 212 is a square groove, but is not limited thereto. Figure 3-Figure 5 As shown, the limiting portion 52 is provided on the support 5 and is located between the two buckle portions 51, and the limiting portion 52 is in a square shape and matches the limiting groove 212. Therefore, the limiting structure can not only limit the support 5 in the third direction, but also limit the support 5 in the first direction.

[0055] When connecting, the two buckle parts 51 of the support 5 are respectively aligned with the two first slots 211 of the yoke 2, so that each buckle part 51 moves along one side of the second direction and passes through the corresponding first slot 211, until the buckle hook 512 of each buckle part 51 passes through the corresponding first slot 211 and hangs on the side of the yoke 2 facing away from the support 5, and at the same time, the buckle arm 511 of each buckle part 51 is respectively inserted into the corresponding first slot 211, as shown in FIG. Figure 6 , Figure 8 At the same time, the limiting portion 52 on the support 5 is inserted into the limiting groove 212 of the yoke 2, as shown in FIG. Figure 6 Therefore, the entire connector 20 is three-dimensionally constrained on the yoke 2.

[0056] Each coil terminal 4 includes a pin body (not shown in the first embodiment) and a first terminal 41 provided on the pin body. The pin body is used to be attached to the coil frame 1 and / or used for winding. In the present embodiment, the pin body and the first terminal 41 are integrally formed, and the pin body is also a rod-shaped structure and is coaxially arranged with the first terminal 41, but is not limited thereto. The first terminals 41 of the plurality of coil terminals 4 extend in the same direction, and the extension direction is opposite to the direction in which the support 5 is snap-connected with the yoke 2, that is, the first terminal 41 of each coil terminal 4 extends along the other side of the second direction. The two coil terminals 4 are respectively installed at the bottom of the coil frame 1, and the first terminals 41 of the two coil terminals 4 are respectively located on both sides of the first side 21 of the yoke 2 in the first direction.

[0057] Each lead-out terminal 6 includes a second terminal 61 for electrically connecting to the first terminal 41 of the coil terminal 4, and the first terminal 41 and / or the second terminal 61 are provided with a positioning structure, so that when the support 5 and the yoke 2 are snap-connected in place, the first terminal 41 and the second terminal 61 are pre-positioned and matched, so as to facilitate the subsequent welding connection of the first terminal 41 and the second terminal 61. Specifically, the positioning structure includes a positioning hole 611 provided at the end of the second terminal 61, and the first terminal 41 is penetrated through the positioning hole 611 along its extension direction, and the first terminal 41 is perpendicular to the second terminal 61. After the positioning holes 611 of the first terminal 41 and the second terminal 61 are matched, spot tin welding is performed to achieve reliable connection between the coil terminal 4 and the lead-out terminal 6, so that the product structure and assembly are simple, the parts and processing costs are reduced, and automatic assembly is achieved.

[0058] like Figure 3 As shown, the lead-out terminal 6 includes not only the second terminal 61, but also a terminal body 62 and a PIN pin 63. The PIN pin 63 is used to be inserted into a device such as a PCB board. The second terminal 61 and the PIN pin 63 are respectively arranged on the terminal body 62 and extend in the same direction. The terminal body 62 is inserted into a slot 53 corresponding to the support 5 on one side along the third direction and is snap-connected with the terminal body 62. The terminal body 62 is roughly L-shaped in a top view, and one side extends along one side of the first direction, and the other side extends along the other side of the second direction. The second terminal 61 and the PIN pin 63 are respectively located at the ends of the bottom ends of both sides of the terminal body 62. A wedge-shaped card block 621 is provided on one side of the terminal body 62, and a second card slot 54 is provided on the slot wall of the slot 53 corresponding to the wedge-shaped card block 621. The wedge-shaped card block 621 is snapped into the second card slot 54 as the terminal body 62 is inserted into the slot 53.

[0059] like Figure 1 As shown, the exposed part of the coil terminal 4 (i.e., the first terminal 41) needs to maintain a certain distance L2 from the coil frame 1 to prevent the coil frame 1 from being burned, causing the first terminal 41 to be skewed and unable to be inserted into the positioning hole 611 at the end of the second terminal 61. The end of the enameled wire 3 is wound around the first terminal 41 of the coil terminal 4, so the coil terminal 4 does not need to be bent. The connection between the first terminal 41 and the second terminal 61 also needs to maintain a certain distance L1 to prevent the enameled wire 3 from being crushed by the second terminal 61 and causing the wire to break. The coil frame 1 is provided with retaining walls 11 between the starting section and the end section of the enameled wire 3 and the first side 21 of the yoke 2, respectively, which can increase the distance between the enameled wire 3 and the yoke 2 and prevent the occurrence of high-voltage adverse reactions between the enameled wire 3 and the yoke 2. A circle of dustproof and waterproof grooves 55 are provided at the bottom of the support 5 for fitting a sealing ring, which can be matched with the corresponding structure of the client to achieve the dustproof and waterproof requirements of the product.

[0060] Embodiment 2

[0061] See also Figure 10-Figure 14As shown, a magnetic circuit part and connector connection structure of the utility model is different from the above-mentioned embodiment 1 in that: the support 5 of the connector 20 is snap-connected with the second side 22 of the yoke 2, so the two first slots 211 and the limiting slot 212 of the yoke 2 are respectively arranged on the second side 22 of the yoke 2, and the two snap-on parts 51 of the support 5 extend along one side of the second direction. In this embodiment, the first direction is the left-right direction, the second direction is the axial direction of the coil frame 1 (i.e., the up-down direction), and the third direction is the front-back direction. Therefore, after the support 5 is snap-connected with the yoke 2, the support 5 is limited on the yoke 2 in the first direction and the second direction. Combined with the limiting cooperation of the limiting part 52 and the limiting slot 212, the support 5 is further limited in the first direction and the third direction, thereby realizing three-dimensional limiting of the connector 20.

[0062] In this embodiment, the two coil terminals 4 are respectively provided at one side along the second direction through the bottom of the coil frame 1. Therefore, the first terminals 41 of the two coil terminals 4 extend downward respectively, and the pin bodies of the coil terminals 4 are exposed upward, and the ends of the enameled wire 3 are wound around the pin bodies. Figure 10-12 shown.

[0063] Embodiment 3

[0064] See also Fig.15 , Fig.16 As shown, a magnetic circuit part and connector connection structure of the utility model is different from the above-mentioned embodiment 1 in that: the coil terminal 4 presents another shape, and the coil terminal 4 is laterally inserted into the mounting groove of the coil frame 1, and the two are interference fit, the first terminal 41 is sheet-shaped, and a positioning groove 411 is provided at its end, which is the above-mentioned positioning structure, the notch of the positioning groove 411 faces the extension direction of the first terminal 41, the first terminal 41 extends along one side of the second direction, and the positioning groove 411 is through in the third direction. The second terminal 61 is inserted into the positioning groove 411, and the first terminal 41 is perpendicular to the second terminal 61.

[0065] In this embodiment, the coil body 42 is provided with a coil winding rod 421 extending upward, and the coil winding rod 421 completes the winding of the enameled wire 3, tinning it, and then bending it.

[0066] Embodiment 4

[0067] See also Figure 17-Figure 21 As shown, a magnetic circuit part and connector connection structure of the utility model is different from the above-mentioned embodiment 1 in that the yoke 2 only includes a first side 21, so the yoke 2 is roughly L-shaped.

[0068] In this embodiment, the first side 21 of the yoke 2 is also provided with two first card slots 211 and a limit slot 212. The two first card slots 211 are connected to the two buckle parts 51 of the support 5 by buckling one by one, and the limit slot 212 is plugged into the limit block 52 on the support 5, thereby realizing three-dimensional limitation of the connector 20.

[0069] In this embodiment, the first terminals 41 of the two coil terminals 4 are also firstly passed through the positioning holes 611 on the two second terminals 61 to achieve pre-fixation, and then spot tin welding is performed to achieve mechanical fixation and electrical connection between the first terminal 41 and the second terminal 61 .

[0070] Embodiment 5

[0071] An electromagnet of the utility model comprises a magnetic circuit part and a connector connection structure as described in any one of the above embodiments (except the fourth embodiment), and the coil frame 1 and / or the yoke 2 are equipped with movable parts.

[0072] In this embodiment, the movable part includes a moving iron core 7, which is movably arranged in the coil frame 1, and one end of the moving iron core 7 is located outside the other end of the coil frame 1 in the axial direction. Therefore, an electromagnet of the utility model constitutes a direct-acting electromagnet.

[0073] In this embodiment, the utility model further comprises a mounting plate 71 , which is made of metal and is located at the other end of the coil frame 1 in the axial direction and is fixedly connected to the tail ends of the two first sides 21 of the yoke 2 .

[0074] Embodiment 6

[0075] An electromagnet of the utility model includes the magnetic circuit part and the connector connection structure described in the fourth embodiment above, and the coil frame 1 and / or the yoke 2 are equipped with a movable part. Specifically, the movable part includes an armature 8, and the armature 8 is movably placed on the first side 21 of the yoke 2, and is matched with the other end of the coil frame 1 in the axial direction to magnetically match with one end of the iron core passing through the coil frame 1. The other end of the iron core is fixedly connected or integrally formed with the second side 22 of the yoke 2. Specifically, the other end of the iron core is riveted and fixed to the second side 22 of the yoke 2. In addition, the magnetic circuit part 10 also includes a restoring spring 9 for providing the armature 8 with reset. The restoring spring 9 is roughly L-shaped, and its two sides are riveted to the armature 8 and the first side 21 of the yoke 2, respectively. Therefore, the electromagnet of the utility model constitutes a snap-on electromagnet.

[0076] The utility model provides a magnetic circuit part, a connector connection structure and an electromagnet, and the uninvolved parts are the same as the prior art or can be implemented by using the prior art.

[0077] The above embodiments are only used to further illustrate a magnetic circuit part and connector connection structure and electromagnet of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A magnetic circuit part and connector connection structure, comprising a magnetic circuit part and a connector, wherein the magnetic circuit part comprises a coil frame and a yoke, wherein the yoke is relatively fixed to the coil frame, an enameled wire is wound on the coil frame, and a plurality of coil terminals are provided, wherein each end of the enameled wire is respectively wound and connected to a corresponding coil terminal; the connector comprises an insulating support and a plurality of lead terminals mounted on the support; wherein: The support is fixedly connected to the yoke, and the multiple coil terminals are electrically connected to the multiple lead-out ends one by one.

2. The magnetic circuit part and connector connection structure according to claim 1, characterized in that: The support is snap-connected to the yoke.

3. The magnetic circuit part and connector connection structure according to claim 2, characterized in that: The support and the yoke are connected by a snap-fit ​​connection to limit the support in a first direction and a second direction. The support and the yoke are also equipped with a limiting structure, which limits the support in at least a third direction. The first direction, the second direction and the third direction are perpendicular to each other, and one of the directions is the axial direction of the coil frame.

4. The magnetic circuit part and connector connection structure according to claim 3, characterized in that: The support is provided with a plurality of snap-in parts, and the yoke is provided with a first snap-in slot corresponding to each snap-in part, and each snap-in part is snap-connected to the corresponding first snap-in slot; the snap-in part includes a snap arm and a snap hook at the end of the snap arm, the snap arm is passed through the first snap slot, and the snap hook is hung on the side of the yoke facing away from the support.

5. The magnetic circuit part and connector connection structure according to claim 4, characterized in that: There are two snap-fit ​​parts, which are arranged along the first direction and hold the yoke in the first direction. The yoke is provided with the first snap-fit ​​grooves at both ends in the first direction, and the first snap-fit ​​grooves are notch grooves or through-hole grooves.

6. The magnetic circuit part and connector connection structure according to any one of claims 3 to 5, characterized in that: The limiting structure comprises a limiting portion and a limiting groove which are plugged into each other, and one of the limiting portion and the limiting groove is arranged on the support, and the other of the limiting portion and the limiting groove is arranged on the yoke.

7. The magnetic circuit part and connector connection structure according to any one of claims 1 to 5, characterized in that: The yoke includes at least one first side and one second side that are integrally formed or fixedly connected, the first side is located on the outside of the coil frame and extends along one side of the axial direction of the coil frame, and the second side is located at one end of the coil frame in the axial direction and is perpendicular to the axial direction of the coil frame; the support is fixedly connected to the first side or the second side of the yoke.

8. The magnetic circuit part and connector connection structure according to any one of claims 1 to 5, characterized in that: The multiple coil terminals respectively include a pin body installed on the coil frame and a first terminal arranged on the pin body, and the first terminals of each coil terminal extend in the same direction, and the extending direction is opposite to the direction in which the support is snap-connected with the yoke; the lead-out end includes a second terminal for electrical connection with the first terminal; the first terminal and / or the second terminal is provided with a positioning structure to enable the first terminal and the second terminal to be positioned and matched when the support and the yoke are connected in place, so as to facilitate the welding connection between the first terminal and the second terminal.

9. The magnetic circuit part and connector connection structure according to claim 8, characterized in that: The positioning structure includes a positioning hole provided on the second terminal, and the first terminal passes through the positioning hole along its extension direction; or, the positioning structure includes a positioning groove provided on the first terminal, the notch of the positioning groove faces the extension direction of the first terminal, and the second terminal is inserted into the positioning groove; the first terminal is perpendicular to the second terminal.

10. The magnetic circuit part and connector connection structure according to claim 8, characterized in that: The lead-out end further comprises a terminal body and a PIN needle, the second terminal and the PIN needle are respectively arranged on the terminal body and extend in the same direction, the terminal body is passed through a slot corresponding to the support and is snap-connected with the terminal body.

11. The magnetic circuit part and connector connection structure according to claim 10, characterized in that: The terminal body is provided with a wedge-shaped clamping block, and a second clamping groove is provided on the groove wall of the slot corresponding to the wedge-shaped clamping block. The wedge-shaped clamping block is clamped into the second clamping groove as the terminal body is inserted into the slot.

12. The magnetic circuit part and connector connection structure according to claim 8, characterized in that: The first terminal is located at the side of the yoke and is wound with the winding head of the enameled wire. The coil frame is provided with retaining walls between the starting section and the ending section of the enameled wire and the yoke respectively.

13. An electromagnet, characterized in that: It comprises a magnetic circuit part and a connector connection structure as claimed in any one of claims 1 to 12, wherein the coil frame and / or the yoke are equipped with movable parts.

14. The electromagnet according to claim 13, characterized in that: The movable part includes a movable iron core inserted into the coil frame, or the movable part includes an armature, which is movably placed on the yoke and magnetically matched with one end of the iron core inserted into the coil frame.

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