An electromagnet

Abstract

The utility model discloses an electromagnet belongs to hydraulic technology field. This electromagnet includes shell, plug assembly, coil assembly, tail alpha subassembly and armature subassembly. The shell includes shell body and sets up in the front yoke of shell body. Tail alpha subassembly includes setting up in the shell body tail alpha, and tail alpha is opposite with the first end of the front yoke and sets up. Coil assembly includes coil skeleton and the coil of setting on coil skeleton, and coil skeleton sets up in the shell body and ring sets up in the front yoke and tail alpha outside, and the mounting hole is set up on coil skeleton. The one end of armature subassembly is movably threaded in tail alpha, and the other end is movably threaded through the front yoke. Plug assembly includes socket and sets up on the pin of socket, and the socket is installed in the shell body, and the terminal of pin and coil is all inserted in the mounting hole with interference, to make pin and terminal mutually abutting. The electromagnet can guarantee the welding quality between pin and the terminal of coil assembly, to ensure the use performance of electromagnet.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic technology, specifically to an electromagnet. Background Technology

[0002] An electromagnet is an electrical actuator that converts electrical energy into mechanical energy to perform commands. Compared with mechanical or hydraulic devices, electromagnets have advantages such as fast response time, strong electromagnetic attraction, small size and light weight, and are widely used in the field of industrial automation.

[0003] An electromagnet typically includes a housing, a plug assembly, a coil assembly, an armature, and a push rod. When current is passed through the coil assembly, a circular magnetic field is generated. Under the influence of this magnetic field, the armature moves along its own axis, simultaneously driving the push rod connected to the armature to move synchronously. This causes the push rod to extend out of the housing and trigger the switch of an external actuator. The plug assembly is located on the housing and is used to power the coil assembly. However, electromagnets in related technologies often suffer from unstable connections between the terminals of the coil assembly and the pins of the plug assembly, making them prone to detachment and affecting their performance.

[0004] Therefore, there is an urgent need for an electromagnet to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnet that can ensure the connection quality between the pin and the terminal of the coil assembly, preventing them from falling off during use, thereby ensuring the performance of the electromagnet.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electromagnet, comprising:

[0008] The outer shell includes a shell body and a front yoke disposed within the shell body;

[0009] The tail nut assembly includes a tail nut disposed within the shell body, and the tail nut is disposed opposite to the first end of the front yoke;

[0010] A coil assembly includes a coil frame and a coil wound on the coil frame. The coil frame is disposed in the shell body and surrounds the front yoke and the tail yoke. The coil frame is provided with mounting holes.

[0011] An armature assembly, one end of which is movably inserted into the tailstock, and the other end of which movably passes through the front yoke;

[0012] A plug assembly includes a socket and pins disposed on the socket, the socket being mounted on the housing body, and the pins and terminals of the coil being interference-fitted into the mounting holes so that the pins and terminals abut against each other.

[0013] As a preferred embodiment of the electromagnet provided by this utility model, the shell body is a shell-shaped structure with openings at both ends. The socket is sealed and installed at the first opening of the shell body, and the front yoke is disposed at the second opening of the shell body. The first opening is constricted so that the socket, the tail nut, the coil assembly and the front yoke abut against each other.

[0014] As a preferred embodiment of the electromagnet provided by this utility model, the number of pins is two, and each pin corresponds to a terminal and a mounting hole.

[0015] As a preferred embodiment of the electromagnet provided by this utility model, the end of the pin is truncated cone-shaped.

[0016] As a preferred embodiment of the electromagnet provided by this utility model, a first sealing element is provided between the inner wall of the coil frame and the front yoke;

[0017] And / or, a second seal is provided between the inner wall of the coil frame and the tail.

[0018] As a preferred embodiment of the electromagnet provided by this utility model, a third sealing element is provided between the socket and the housing body;

[0019] And / or, a fourth seal is provided between the socket and the tail.

[0020] As a preferred embodiment of the electromagnet provided by this utility model, at least one of the socket and the inner wall of the housing body is provided with a first annular sealing groove for accommodating the third sealing element.

[0021] And / or, at least one of the socket and the tail is provided with a second annular sealing groove for receiving the fourth seal.

[0022] As a preferred embodiment of the electromagnet provided by this utility model, the armature assembly includes an armature and a push rod connected to the armature. The armature is movably inserted into the tailstock, and the end of the push rod opposite to the armature passes through the front yoke. The armature can move relative to the tailstock when the coil assembly is energized, and at the same time drive the push rod to move relative to the front yoke.

[0023] As a preferred embodiment of the electromagnet provided by this utility model, the armature assembly further includes a reset member, the two ends of which abut against the armature and the socket respectively.

[0024] As a preferred embodiment of the electromagnet provided by this utility model, the armature is provided with a receiving groove, and the reset member is partially received in the receiving groove.

[0025] The beneficial effects of this utility model are as follows:

[0026] The electromagnet provided by this utility model has mounting holes on the coil frame, and the coil terminals and pins are interference-fitted into the mounting holes, thereby achieving stable installation of the pins and terminals in the mounting holes, while ensuring that the two can abut against each other to achieve electrical connection.

[0027] By setting the opening at the first end of the housing body to a constricted shape, the tail assembly, coil assembly, and plug assembly can be fixed, while ensuring that each component is tightly pressed against each other. This further guarantees the connection quality of the terminals and pins, preventing them from falling off during use and affecting the performance of the electromagnet. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional schematic diagram of the electromagnet provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the plug assembly provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the coil assembly provided in this embodiment of the utility model;

[0032] Figure 4 yes Figure 3 A magnified view of a portion at point A;

[0033] Figure 5 This is a cross-sectional schematic diagram of the armature assembly provided in this embodiment of the utility model;

[0034] Figure 6 This is a cross-sectional schematic diagram of the shell body provided in an embodiment of the present utility model;

[0035] Figure 7 This is a cross-sectional schematic diagram of the front yoke provided in an embodiment of the present invention.

[0036] Figure label:

[0037] 10. Outer shell; 11. Shell body; 111. First end opening; 112. Second end opening; 1120. First limiting step; 12. Front yoke; 121. Through hole; 122. Guide groove; 123. Second limiting step;

[0038] 20. Plug assembly; 21. Socket; 211. First annular sealing groove; 212. Second annular sealing groove; 22. Pin;

[0039] 30. Coil assembly; 31. Coil frame; 310. Mounting hole; 311. First conical sealing surface; 312. Second conical sealing surface; 32. Coil; 321. Terminal;

[0040] 40. Tail component;

[0041] 50. Armature assembly; 51. Armature; 511. Receiving slot; 512. Insertion hole; 52. Push rod; 53. Reset component;

[0042] 61. First seal; 62. Second seal; 63. Third seal; 64. Fourth seal. Detailed Implementation

[0043] Before explaining any embodiment of the present invention in detail, it should be understood that the present invention is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0044] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0045] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0046] In this invention, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0047] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0048] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0049] In this utility model, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when one element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent the direct orientation but can also be understood as the lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0050] like Figures 1-4As shown, this embodiment provides an electromagnet, which includes a housing 10, a plug assembly 20, a coil assembly 30, a tail nut assembly 40, and an armature assembly 50. The housing 10 includes a housing body 11 and a front yoke 12 disposed within the housing body 11. The tail nut assembly 40 includes a tail nut disposed within the housing body 11, with the tail nut and the first end of the front yoke 12 facing each other. The coil assembly 30 includes a coil frame 31 and a coil 32 wound on the coil frame 31. The coil frame 31 is disposed within the housing body 11 and surrounds the front yoke 12 and the tail nut, and has a mounting hole 310. One end of the armature assembly 50 is movably inserted into the tail nut, and the other end movably passes through the front yoke 12. The plug assembly 20 includes a socket 21 and a pin 22 disposed on the socket 21. The socket 21 is mounted on the housing body 11, and the pin 22 and the terminal 321 of the coil 32 are interference-fitted into the mounting hole 310 so that the pin 22 and the terminal 321 abut against each other. By providing mounting holes 310 on the coil frame 31, the terminals 321 and pins 22 of the coil 32 are interference-fitted into the mounting holes 310, thereby achieving stable installation of the pins 22 and terminals 321 in the mounting holes 310, while ensuring that the two can abut against each other to achieve a stable electrical connection.

[0051] When the coil assembly 30 is energized, a ring-shaped magnetic field is generated along the shell body 11, tail yoke, and front yoke 12. Under the action of the ring-shaped magnetic field, the armature assembly 50 can move along its own axis to output force and displacement, thereby triggering the switch of the external actuator. The working principle of the electromagnet is existing technology and will not be described in detail in this embodiment.

[0052] In this embodiment, there are two pins 22, each pin 22 corresponding to a terminal 321 and a mounting hole 310, thereby realizing current conduction.

[0053] To facilitate the quick insertion of pin 22 into mounting hole 310, such as Figure 2 As shown, the end of the pin 22 is truncated cone-shaped. The truncated cone structure can guide the pin 22 into the mounting hole 310, so that it can be inserted into the mounting hole 310 quickly and accurately.

[0054] like Figure 5 and combined Figure 1 As shown, the armature assembly 50 includes an armature 51 and a push rod 52 connected to the armature 51. The armature 51 is movably inserted into the tailstock, and the end of the push rod 52 opposite to the armature 51 passes through the front yoke 12. The armature 51 can move relative to the tailstock when the coil assembly 30 is energized, thereby driving the push rod 52 to move relative to the front yoke 12. The push rod 52 can extend out of the housing 10 and connect to an external actuator.

[0055] In some embodiments, the armature assembly 50 further includes a reset member 53, with its two ends abutting against the armature 51 and the socket 21, respectively. When the electromagnet is in operation, the armature 51 can move relative to the tailstock when the coil assembly 30 is energized, simultaneously driving the push rod 52 to extend out of the front yoke 12. Then, the armature 51 can be reset under the elastic restoring force of the reset member 53, thereby realizing the reciprocating movement of the armature 51 and the push rod 52. Optionally, the reset member 53 is a reset spring, which has a large elastic restoring force, is easy to assemble, and has a low cost.

[0056] In some embodiments, the armature 51 is provided with a receiving groove 511, and the reset member 53 is partially received in the receiving groove 511. By providing a receiving groove 511 on the armature 51 that can partially receive the reset member 53, the extension and retraction of the reset member 53 can be limited, so that it can extend and retract along its own axis and avoid its displacement during the extension and retraction process.

[0057] In some embodiments, the armature 51 has a insertion hole 512, and one end of the push rod 52 is interference-fitted into the insertion hole 512, thereby achieving a fixed connection between the armature 51 and the push rod 52, thus ensuring that the push rod 52 can move synchronously when the armature 51 moves; in addition, this connection method is convenient to operate and can reduce the number of parts and reduce processing costs.

[0058] like Figure 1 As shown, a first sealing element 61 is provided between the inner wall of the coil frame 31 and the front yoke 12. A second sealing element 62 is provided between the inner wall of the coil frame 31 and the tail yoke. The first sealing element 61 and the second sealing element 62 ensure the sealing between the coil frame 31 and the front yoke 12, and between the coil frame 31 and the tail yoke. This ensures that the coil assembly 30 has good insulation, waterproof, corrosion resistance, and heat dissipation performance, while eliminating the need for encapsulation of the coil assembly 30, simplifying the assembly process, improving assembly efficiency, and reducing production costs to some extent.

[0059] In some embodiments, one end of the coil frame 31 is provided with a first conical sealing surface 311, which is inclined from top to bottom away from the central axis of the coil frame 31. The first sealing element 61 is located between the first conical sealing surface 311 and the front yoke 12. The other end of the coil frame 31 is provided with a second conical sealing surface 312, which is inclined from bottom to top away from the central axis of the coil frame 31. The second sealing element 62 is located between the second conical sealing surface 312 and the tail yoke. By providing the first conical sealing surface 311 and the second conical sealing surface 312 on the coil frame 31, reliable installation of the first sealing element 61 and the second sealing element 62 can be achieved, ensuring good sealing performance between the coil assembly 30 and the front yoke 12, and between the coil assembly 30 and the tail yoke.

[0060] Optionally, both the first seal 61 and the second seal 62 can be rubber sealing rings, which have a simple structure, are easy to install, and have a good sealing effect.

[0061] It should be noted that the directional terms such as "up," "down," "inner," and "outer" used in this embodiment are all in the context of... Figure 1 The description of the orientation and positional relationships shown should not be construed as a limitation of this embodiment.

[0062] like Figure 6 , Figure 7 and combined Figure 1 As shown, the shell body 11 is a shell-shaped structure with openings at both ends. The socket 21 is sealed and installed at the first end opening 111 of the shell body 11, and the front yoke 12 is disposed at the second end opening 112 of the shell body 11. By disposing the front yoke 12 and the plug assembly 20 at the two ends of the shell body 11 respectively, interference between the armature assembly 50 and the plug assembly 20 can be avoided when the armature assembly 50 moves.

[0063] In this embodiment, the first end opening 111 is constricted to ensure that the socket 21, tail ferrule, coil assembly 30, and front yoke 12 are tightly pressed together, further guaranteeing the connection quality of the terminal 321 and the pin 22 and preventing them from falling off during use, which would affect the performance of the electromagnet. Specifically, after the front yoke 12, coil assembly 30, tail ferrule assembly 40, armature assembly 50, and plug assembly 20 are all installed on the housing body 11, the first end opening 111 of the housing body 11 is rolled to complete the encapsulation, thereby ensuring the overall stability and sealing of the electromagnet.

[0064] In some embodiments, the front yoke 12 has a through hole 121 extending along its axial direction, and the push rod 52 is movably inserted through the through hole 121. A guide groove 122 is provided at the first end of the front yoke 12, and the end of the armature 51 facing away from the tailstock is guided and fitted into the guide groove 122. The guide groove 122 and the through hole 121 provide guidance for the movement of the armature 51, thereby ensuring the stability of the armature assembly 50 during movement.

[0065] For example, the depth of the guide groove 122 is 2.0mm to 5.0mm. Users can select a front yoke 12 with a suitable guide groove 122 depth according to actual usage requirements to meet the stroke requirements of the electromagnet. For example, the depth of the guide groove 122 can be 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, etc. Of course, in other embodiments, the depth of the guide groove 122 can also be any other value between 2.0mm and 5.0mm.

[0066] In some embodiments, the front yoke 12 is detachably connected to the housing body 11. When adjusting the stroke parameters of the electromagnet, the user can replace only the front yoke 12 without replacing the housing body 11, thereby reducing the operating cost of the electromagnet.

[0067] Optionally, a first limiting step 1120 is formed on the inner side of the second end opening 112 of the shell body 11, and a second limiting step 123 is formed on the second end of the front yoke 12. The first limiting step 1120 and the second limiting step 123 mutually limit and abut against each other. During installation, the front yoke 12 can be placed into the inner cavity of the shell body 11 through the first end opening 111. When the second limiting step 123 abuts against the first limiting step 1120, the two are assembled in place. This arrangement is simple in structure, easy to disassemble and assemble, and can reduce the number of connecting parts used to connect the shell body 11 and the front yoke 12, thereby reducing processing costs.

[0068] like Figure 1 and Figure 7 As shown, the first end of the front yoke 12 is truncated cone-shaped. This arrangement significantly reduces the air gap reluctance, allowing the magnetic field lines to pass through the air gap more concentratedly, forming a more uniform magnetic field distribution and avoiding edge scattering or distortion. Furthermore, it increases the contact area between the magnetic poles and the air gap, increasing the air gap permeability, thereby generating a stronger magnetic field and a greater initial attraction under the same excitation current. Simultaneously, setting the first end of the front yoke 12 to a truncated cone shape also serves as a guide, improving the alignment between the front yoke 12 and the coil assembly 30 and increasing assembly efficiency.

[0069] Continue as Figure 1 As shown, a third sealing element 63 is provided between the socket 21 and the housing body 11 to ensure the sealing performance between the socket 21 and the housing body 11. A fourth sealing element 64 is provided between the socket 21 and the tailstock to ensure the sealing performance between the socket 21 and the tailstock.

[0070] In some embodiments, the socket 21 is provided with a first annular sealing groove 211 for accommodating the third sealing member 63, so as to achieve the positioning and installation of the third sealing member 63 and prevent the third sealing member 63 from falling off during operation. Of course, in other embodiments, the first annular sealing groove 211 can also be provided on the inner wall of the housing body 11, which can achieve the same effect.

[0071] In some embodiments, the socket 21 is provided with a second annular sealing groove 212 for accommodating the fourth sealing member 64, so as to achieve the positioning and installation of the fourth sealing member 64 and prevent the fourth sealing member 64 from falling off during operation. Of course, in other embodiments, the second annular sealing groove 212 can also be provided at the top of the tail, which can achieve the same effect.

[0072] Alternatively, both the third seal 63 and the fourth seal 64 can be made of rubber sealing rings, which have a simple structure, are easy to install, and have a good sealing effect.

[0073] In this embodiment, the tail assembly 40 and the shell body 11 are interference-fitted, which facilitates assembly and ensures stable installation between the two.

[0074] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. An electromagnet, characterized in that, include: The outer shell (10) includes a shell body (11) and a front yoke (12) disposed within the shell body (11). The tail yoke assembly (40) includes a tail yoke disposed within the shell body (11), and the tail yoke is disposed opposite to the first end of the front yoke (12); The coil assembly (30) includes a coil frame (31) and a coil (32) wound on the coil frame (31). The coil frame (31) is disposed in the shell body (11) and surrounds the front yoke (12) and the tail yoke. The coil frame (31) is provided with mounting holes (310). An armature assembly (50) has one end movably inserted into the tailstock and the other end movably inserted through the front yoke (12). The plug assembly (20) includes a socket (21) and pins (22) disposed on the socket (21). The socket (21) is mounted on the housing body (11). The pins (22) and the terminals (321) of the coil (32) are interference-fitted into the mounting hole (310) so that the pins (22) and the terminals (321) abut against each other.

2. The electromagnet according to claim 1, characterized in that, The shell body (11) is a shell-shaped structure with openings at both ends. The socket (21) is sealed and installed at the first end opening (111) of the shell body (11). The front yoke (12) is located at the second end opening (112) of the shell body (11). The first end opening (111) is constricted so that the socket (21), the tail nut, the coil assembly (30) and the front yoke (12) abut against each other.

3. The electromagnet according to claim 1, characterized in that, The number of the pins (22) is two, and each pin (22) corresponds to a terminal (321) and a mounting hole (310).

4. The electromagnet according to claim 1, characterized in that, The end of the pin (22) is frustoconical.

5. The electromagnet according to claim 1, characterized in that, A first sealing element (61) is provided between the inner wall of the coil frame (31) and the front yoke (12). And / or, a second seal (62) is provided between the inner wall of the coil frame (31) and the tail.

6. The electromagnet according to claim 1, characterized in that, A third sealing element (63) is provided between the socket (21) and the shell body (11). And / or, a fourth seal (64) is provided between the socket (21) and the tail.

7. The electromagnet according to claim 6, characterized in that, At least one of the inner walls of the socket (21) and the shell body (11) is provided with a first annular sealing groove (211) for accommodating the third seal (63). And / or, at least one of the socket (21) and the tail is provided with a second annular sealing groove (212) for receiving the fourth seal (64).

8. The electromagnet according to any one of claims 1 to 7, characterized in that, The armature assembly (50) includes an armature (51) and a push rod (52) connected to the armature (51). The armature (51) is movably inserted into the tailstock. The push rod (52) is disposed with one end away from the armature (51) through the front yoke (12). The armature (51) can move relative to the tailstock when the coil assembly (30) is energized, and at the same time drive the push rod (52) to move relative to the front yoke (12).

9. The electromagnet according to claim 8, characterized in that, The armature assembly (50) also includes a reset member (53), the two ends of which abut against the armature (51) and the socket (21) respectively.

10. The electromagnet according to claim 9, characterized in that, The armature (51) is provided with a receiving groove (511), and the reset member (53) is partially received in the receiving groove (511).

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