Control switch electromagnetic lock

Abstract

The utility model belongs to the technical field of electromagnets, and particularly relates to a control switch electromagnetic lock which comprises a shell, an electromagnetic lock body and a control switch. The coil assembly is arranged in the containing cavity, and a static iron core and a movable iron core are arranged in the coil assembly; the shell is provided with a reset assembly used for resetting the movable iron core. The reset assembly comprises a reset spring and a positioning pin, the positioning pin is movably connected with the end of the movable iron core in an inserted mode, one end of the reset spring abuts against the positioning pin, and the other end of the reset spring abuts against the top end face of the shell. According to the electromagnetic lock, the replacement or adjustment process of the reset spring is simplified, the problem of complex disassembly and assembly caused by a traditional clamping spring fixing mode is solved, therefore, the disassembly and assembly efficiency is improved, repair and maintenance are convenient, it is ensured that the electromagnetic lock can be stably locked when powered on and can be rapidly reset and unlocked when powered off through the design, and the use reliability and convenience of the electromagnetic lock are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electromagnet, especially control switch electromagnetic lock. BACKGROUND

[0002] Electromagnet is a kind of device using electric current to generate magnetic field, usually by coil and core composition.When electric current passes through wire, it will generate magnetic field around wire, using this property, when electric current passes through coil, then it will make uniform magnetic field inside coil.Assume that the center of coil inserts ferromagnetic material, then this ferromagnetic material will be magnetized, and it will greatly enhance magnetic field.

[0003] Electromagnet is widely used in multiple fields, including control mechanical arm and switch in industrial automation;Guide particle beam and be used for MRI in scientific research equipment;Magnetic levitation train and electromagnetic railgun in transportation;Heart pacemaker and magnetic therapy in medical equipment;Household appliances such as induction cooker and loudspeaker;Hard disk drive and electromagnetic relay in electronic equipment;Waste treatment and water treatment in environmental engineering;Electromagnetic weapon and metal detector in military and security;Science education and interactive exhibition in education and display.In addition, electromagnet is also used in hoisting, electric power transmission and machine tool fixture etc.With the progress of technology, the application field of electromagnet continues to expand.

[0004] Electromagnetic lock is widely used in access control, including industrial, laboratory, commercial and residential occasions.They ensure safety, but also have the shortcomings of relying on power supply, environmental limitations, slow switching speed and high installation and maintenance requirements.

[0005] The reset spring at the top end of electromagnetic lock is crucial for electromagnetic lock system, which helps the iron core and lock shell to be closely attached to realize locking function when energized, and can reset quickly to ensure timely unlocking when de-energized.In the existing technology, the reset spring is usually fixed by installing a snap spring on the moving iron core.If the reset spring needs to be replaced or adjusted, the snap spring must be disassembled, but since the snap spring and the moving iron core are usually installed in a clamping manner, the disassembly process is often relatively complex. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a control switch electromagnetic lock, to solve the technical problem that the replacement or adjustment process of reset spring in prior art is complex, not conducive to operation and affects disassembly efficiency.

[0007] To achieve the above-mentioned purpose, the utility model embodiment provides a control switch electromagnetic lock, which comprises:

[0008] Housing, the housing is provided with accommodating cavity;

[0009] Coil assembly, the coil assembly is arranged in the accommodating cavity, wherein the inside of the coil assembly is provided with static iron core and moving iron core;

[0010] The shell is provided with a reset assembly for resetting the moving iron core;

[0011] The reset assembly comprises a reset spring and a positioning pin,

[0012] The positioning pin is movably inserted into the end of the moving iron core, one end of the reset spring abuts against the positioning pin, and the other end of the reset spring abuts against the top end surface of the shell.

[0013] Optionally, the end of the moving iron core is provided with a through hole, and the positioning pin is inserted into the through hole.

[0014] Optionally, the positioning pin is configured to have a stepped structure, the stepped structure has a first diameter section and a second diameter section, the first diameter section is adapted to be inserted into the through hole, and the diameter of the second diameter section is greater than that of the through hole.

[0015] Optionally, the outer surface of the positioning pin is provided with a wear-resistant layer.

[0016] Optionally, the top end surface of the shell is provided with a spring mounting groove, one end of the reset spring is mounted in the spring mounting groove, and the other end abuts against the positioning pin.

[0017] Optionally, the static iron core and the moving iron core are configured to have a concave-convex structure, the static iron core is provided with a concave groove, the moving iron core is provided with a convex platform, and the bottom end surface of the concave groove is provided with a buffer pad.

[0018] Optionally, the bottom of the accommodating cavity is provided with a through hole for mounting the static iron core.

[0019] Optionally, the bottom of the accommodating cavity is further provided with an annular groove, the annular groove is arranged at the outer periphery of the through hole, and the annular groove is provided with a gasket for buffering the static iron core.

[0020] Optionally, the sidewall of the shell is provided with a plurality of heat dissipation holes.

[0021] Optionally, the shell is made of an insulating material.

[0022] The above one or more technical solutions in the control switch electromagnetic lock provided by the embodiments of the present application at least have one of the following technical effects:

[0023] The utility model discloses a control switch electromagnetic lock, reset subassembly is composed of reset spring and positioning pin, and the end of reset spring abuts with the positioning pin, and the other end abuts with the top end surface of shell, and the design simplifies the replacement or adjustment process of reset spring, avoids the complicated dismounting problem of traditional snap spring fixed mode, thereby improve the dismounting efficiency, and it is convenient for maintenance and maintenance, and simultaneously, the design ensures that the electromagnetic lock can be stably locked when electrifying, and can be reset and unlocked quickly when power off, improves the use reliability and convenience of electromagnetic lock. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0025] Figure 1 The utility model provides the structural diagram of control switch electromagnetic lock.

[0026] Figure 2 The utility model provides the control switch electromagnetic lock's sectional view.

[0027] Among them, the various signs in the drawing are:

[0028] 10, shell;11, accommodating cavity;12, heat dissipation hole;

[0029] 20, coil assembly;30, static iron core;40, moving iron core;

[0030] 41, through hole;50, reset subassembly;51, reset spring;

[0031] 52, positioning pin;521, first diameter section;522, second diameter section. DETAILED DESCRIPTION

[0032] The embodiment of the utility model is described in detail below, and the examples of the embodiment are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the embodiments of the utility model, and cannot be understood as the limitation of the utility model.

[0033] In the description of the embodiments of the utility model, it is understood that the directions or position relations indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model.

[0034] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0035] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0036] In one embodiment of the utility model, as shown in Figures 1-2 A control switch electromagnetic lock is provided, comprising:

[0037] A shell 10 is provided with a receiving cavity 11;

[0038] A coil assembly 20 is arranged in the receiving cavity 11, wherein the inside of the coil assembly 20 is provided with a static iron core 30 and a moving iron core 40;

[0039] The shell 10 is provided with a reset assembly 50 for resetting the moving iron core 40;

[0040] The reset assembly 50 comprises a reset spring 51 and a positioning pin 52,

[0041] The positioning pin 52 is movably inserted into the end of the moving iron core 40, one end of the reset spring 51 abuts against the positioning pin 52, and the other end of the reset spring 51 abuts against the top end face of the shell 10.

[0042] Specifically, the control switch electromagnetic lock of the utility model, reset assembly 50 is composed by reset spring 51 and positioning pin 52, positioning pin 52 is movably inserted with the end of moving iron core 40, one end of reset spring 51 is abutted with positioning pin 52, the other end is abutted with the top end surface of shell 10, such design simplifies the replacement or adjustment process of reset spring 51, avoids the complex disassembly problem caused by traditional clamping spring fixing mode, thereby improve the disassembly efficiency, facilitate maintenance and maintenance, at the same time, the design ensures that electromagnetic lock can be stably locked when energized, and can be quickly reset when de-energized, improve the use reliability and convenience of electromagnetic lock.

[0043] In another embodiment of the utility model, as shown in Figures 1-2 The end of the moving iron core 40 is provided with a through hole 41, and the positioning pin 52 is inserted into the through hole 41. Specifically, the end of the moving iron core 40 is provided with a through hole 41, and the positioning pin 52 is inserted into the through hole 41, ensuring the stable connection of the positioning pin 52 and the moving iron core 40, and improving the reliability of the overall structure.

[0044] In another embodiment of the utility model, as shown in Figures 1-2 The positioning pin 52 is configured to have a stepped structure, the stepped structure has a first diameter section 521 and a second diameter section 522, the first diameter section 521 is adapted to be inserted into the through hole 41, and the diameter of the second diameter section 522 is greater than that of the through hole 41. Specifically, the design of such a stepped structure makes the positioning pin 52 have better positioning effect when inserted into the through hole 41, and at the same time can provide sufficient support force during the resetting process, ensuring that the moving iron core 40 can be quickly and accurately reset.

[0045] In another embodiment of the utility model, as shown in Figures 1-2 The outer surface of the positioning pin 52 is provided with a wear-resistant layer. Specifically, the outer surface of the positioning pin 52 is provided with a wear-resistant layer, which can effectively prolong the service life of the positioning pin 52 and reduce the replacement frequency caused by wear, thereby reducing the maintenance cost.

[0046] In another embodiment of the utility model, as shown in Figures 1-2 The top end surface of the shell 10 is provided with a spring mounting groove, one end of the reset spring 51 is mounted in the spring mounting groove, and the other end is abutted with the positioning pin 52. Specifically, the top end surface of the shell 10 is provided with a spring mounting groove, one end of the reset spring 51 is mounted in the spring mounting groove, and the other end is abutted with the positioning pin 52, so that the installation of the reset spring 51 is more stable, and at the same time it is convenient to disassemble and replace, improving the convenience of maintenance.

[0047] In another embodiment of the utility model, as shown in Figures 1-2As shown, the stationary iron core 30 and the moving iron core 40 are configured with a concave-convex structure. The stationary iron core 30 has a groove, and the moving iron core 40 has a boss. A buffer pad is provided on the bottom surface of the groove. Specifically, the concave-convex structure effectively reduces the impact on the moving iron core 40 during movement, improving the stability and service life of the electromagnetic lock.

[0048] In another embodiment of this utility model, such as Figures 1-2 As shown, the bottom of the receiving cavity 11 has a through hole 41 for installing the stationary iron core 30. Specifically, the through hole 41 at the bottom of the receiving cavity 11 makes the installation of the stationary iron core 30 more convenient and quick, and also facilitates heat dissipation and maintenance.

[0049] In another embodiment of this utility model, such as Figures 1-2 As shown, an annular groove is also formed at the bottom of the receiving cavity 11. The annular groove is located on the outer periphery of the through hole 41, and a washer for cushioning the stationary iron core 30 is provided inside the annular groove. Specifically, the design of the annular groove and washer can effectively absorb the vibration and impact generated during the operation of the electromagnetic lock, thereby improving the overall stability and reliability.

[0050] In another embodiment of this utility model, such as Figures 1-2 As shown, a plurality of heat dissipation holes 12 are provided on the side wall of the outer casing 10. Specifically, the design of the heat dissipation holes 12 can effectively improve the heat dissipation performance of the electromagnetic lock, prevent performance degradation or damage caused by overheating, and thus improve the service life of the electromagnetic lock.

[0051] In another embodiment of this utility model, such as Figures 1-2 As shown, the outer casing 10 is made of insulating material. Specifically, the use of insulating material can effectively prevent electric shock to operators caused by the current generated during the operation of the electromagnetic lock, thus improving safety. At the same time, the insulating material also has good heat resistance and mechanical strength, which can effectively protect the internal components and extend the service life of the electromagnetic lock.

[0052] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0053] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control switch electromagnetic lock, characterized by, The utility model relates to a coil assembly and a coil assembly reset device, and belongs to the field of coil assembly reset device. Including: The shell is provided with a containing cavity; Coil assembly, coil assembly is arranged in the containing cavity, wherein the inside of coil assembly is provided with static iron core and moving iron core; The shell is provided with reset assembly for resetting the moving iron core; Wherein, the reset assembly includes reset spring and positioning pin, 2. The control switch electromagnetic lock according to claim 1, characterized in that: The end of the reset spring abuts against the positioning pin, and the other end of the reset spring abuts against the top end face of the shell.

3. The control switch electromagnetic lock according to claim 2, characterized in that: The end of the moving iron core is provided with a through hole, and the positioning pin is inserted into the through hole.

4. The control switch electromagnetic lock according to claim 2, characterized in that: The positioning pin is configured to have a stepped structure with a first diameter section and a second diameter section, the first diameter section is adapted to the through hole, and the diameter of the second diameter section is greater than that of the through hole.

5. The control switch electromagnetic lock according to any one of claims 1 to 4, characterized in that: The outer surface of the positioning pin is provided with a wear-resistant layer.

6. The control switch electromagnetic lock according to any one of claims 1 to 4, characterized in that: The top end face of the shell is provided with a spring mounting groove, one end of the reset spring is mounted in the spring mounting groove, and the other end abuts against the positioning pin.

7. The control switch electromagnetic lock according to any one of claims 1 to 4, characterized in that: The static iron core and the moving iron core are configured as a concave-convex structure, wherein the static iron core is provided with a groove, the moving iron core is provided with a boss, and the bottom end face of the groove is provided with a buffer pad.

8. The control switch electromagnetic lock according to claim 7, characterized in that: The bottom of the containing cavity is provided with a through hole for mounting the static iron core.

9. The control switch electromagnetic lock according to any one of claims 1 to 4, characterized in that: The bottom of the containing cavity is also provided with an annular groove, which is arranged on the outer periphery of the through hole, and a gasket is arranged in the annular groove for buffering the static iron core.

10. The control switch electromagnetic lock according to any one of claims 1 to 4, characterized in that: The side wall of the shell is provided with a plurality of heat dissipation holes. The shell is made of insulating material.

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