Protective electromagnetic switch assembly

Abstract

The utility model discloses a protective electromagnetic switch assembly, belongs to the technical field of electromagnetic switches, and solves the problem that when a sealing block of a conventional device moves to a sealing groove, external dust and small foreign matters enter an electromagnetic box body to affect the service life of the electromagnetic box body. A guide rod is installed in the electromagnetic box body in a penetrating mode, protection assemblies are arranged at the upper end and the lower end of the electromagnetic box body correspondingly, and annular protection grooves are formed in the edges of the upper face and the lower face of the electromagnetic box body correspondingly. The outer surface of the electromagnetic box body is slidably sleeved with the outer protection plate, and the inner protection plate is slidably sleeved with the protection groove, so that in the moving process of the guide rod, the protection assembly can protect the electromagnetic box body all the time, and the service life of the electromagnetic box body is prolonged; and external dust and small foreign matters are prevented from entering the electromagnetic box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic switch technical field, concretely is protective electromagnetic switch assembly. BACKGROUND

[0002] The starter electromagnetic switch is a switch controlled by an electromagnet, which is a combination of an electromagnet and a switch. When the electromagnet coil is energized, an electromagnetic attraction force is generated, and the movable core pushes or pulls the switch contact to close, thereby connecting the controlled circuit.

[0003] According to the search, the application No. 202220728252.6 discloses a kind of electromagnetic switch assembly of starter, including electromagnetic box body, the electromagnetic box body is installed with guide rod, the guide rod upper end is fixedly installed with top disc, the top disc lower surface is installed with reset spring, the reset spring, the reset spring one end is set on the upper surface of electromagnetic box body, the electromagnetic copper plate is installed with contact on the side away from guide rod, the guide rod is connected with electromagnetic box body by sealing assembly;

[0004] Although the electromagnetic switch assembly of the starter is arranged in the first sealing groove by the first sealing block, and the third sealing block is arranged in the third sealing groove, so that the electromagnetic box body will not enter dust and other smaller foreign matters when the device works, but the sealing block of the electromagnetic switch assembly of the starter will enter the dust and smaller foreign matters outside into the electromagnetic box body during moving to the sealing groove, affecting the service life of the electromagnetic box body.

[0005] Therefore, we propose a protective electromagnetic switch assembly. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of the prior art, the utility model provides a protective electromagnetic switch assembly, which solves the problem that the sealing block of the existing device will enter dust and smaller foreign matters outside into the electromagnetic box body during moving to the sealing groove, affecting the service life of the electromagnetic box body.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme: a protective electromagnetic switch assembly, including a cylindrical electromagnetic box body, a guide rod is installed through the inside of the electromagnetic box body, an electromagnetic copper plate is fixedly installed at the bottom end of the guide rod, and a contact is fixedly installed on the bottom surface of the electromagnetic copper plate.

[0008] Protective assemblies are arranged at the upper and lower ends of the electromagnetic box body, and annular protective grooves are formed at the edges of the upper and lower surfaces of the electromagnetic box body.

[0009] The protection assembly comprises an inner protection plate in the shape of a ring and movably sleeved inside the protection groove, one side of the inner protection plate away from the middle part of the electromagnetic box body is fixedly provided with a limiting disc, the diameter of the limiting disc is the same as the diameter of the top surface of the electromagnetic box body, the arc surface of the limiting disc is fixedly provided with an outer protection plate in the shape of a ring and movably sleeved on the outer surface of the electromagnetic box body, one side of the outer protection plate close to the middle part of the electromagnetic box body is fixedly provided with a dustproof pad in the shape of a ring, and the dustproof pad is movably sleeved on the outer surface of the electromagnetic box body.

[0010] Preferably, the length of the inner protection plate matches the depth of the protection groove, and the dustproof pad is made of sponge material, wherein the sponge has high porosity due to its porous structure, and can more effectively adsorb particulate matters in the air, when the air passes through the sponge, the tiny particles in the air can be adsorbed on the surface or pores of the sponge, thereby playing a good filtering and dust collecting effect.

[0011] Preferably, the top end of the guide rod is fixedly installed on the bottom surface of the limiting disc, the bottom end of the guide rod penetrates the limiting disc located at the bottom, and the limiting disc located at the bottom is fixedly sleeved on the outer surface of the guide rod, wherein when the guide rod moves, the protection assembly at both ends of the guide rod can move along the inner wall of the protection groove.

[0012] Preferably, the top end of the guide rod is sleeved with a spring, and the two ends of the spring are fixedly installed on the top surface of the electromagnetic box body and the bottom surface of the limiting disc, respectively, wherein the electromagnetic attraction generated after the electromagnetic coil is electrified can drive the guide rod and the contact at the bottom of the guide rod to move downward, and then the contact and the contact point are closed, at this time the spring is compressed, and when the electromagnetic coil is de-energized, the guide rod can be driven to move to the top end of the electromagnetic box body by the elastic force of the spring.

[0013] The utility model provides a protection type electromagnetic switch assembly. Has the following beneficial effect:

[0014] The protection type electromagnetic switch assembly, through the setting that the dustproof pad is movably sleeved on the outer surface of the electromagnetic box body, and the setting that the outer protection plate is movably sleeved on the outer surface of the electromagnetic box body and the inner protection plate is movably sleeved inside the protection groove, in the process of moving the guide rod, the dustproof pad can clean the dust and smaller foreign matters attached on the outer surface of the electromagnetic box body, and the dustproof pad, the outer protection plate and the inner protection plate can hinder the external dust and smaller foreign matters from entering the inside of the electromagnetic box body, the protection assembly can always protect the electromagnetic box body, is favorable to improve the service life of electromagnetic box body, avoids the external dust and smaller foreign matters from entering the inside of the electromagnetic box body, solves the problem that the sealing block of the prior art device enters the inside of the electromagnetic box body when moving to the sealing groove, and affects the service life of the electromagnetic box body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1A structure schematic view of the utility model;

[0016] Figure 2 A structure schematic view of the utility model;

[0017] Figure 3 A structure schematic view of the utility model;

[0018] Figure 4 A structure schematic view of the utility model.

[0019] In the figure: 1, electromagnetic box body;11, protection groove;2, guide rod;21, electromagnetic copper plate;22, contact;23, spring;3, protection assembly;31, inner protection plate;32, limit disc;33, outer protection plate;34, dust pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment 1: as Figures 1-4As shown: The electromagnetic box body 1 is cylindrical. A guide rod 2 is installed through the interior of the electromagnetic box body 1. An electromagnetic copper plate 21 is fixedly installed at the bottom end of the guide rod 2. A contact 22 is fixedly installed on the bottom surface of the electromagnetic copper plate 21. Protective components 3 are provided at both the top and bottom ends of the electromagnetic box body 1. Annular protective grooves 11 are formed at the edges of both the top and bottom surfaces of the electromagnetic box body 1. The protective component 3 includes an inner protective plate 31, which is annular and movably fitted inside the protective groove 11. A limiting plate 32 is fixedly installed on the side of the inner protective plate 31 away from the middle of the electromagnetic box body 1. The diameter of the limiting plate 32 is the same as the diameter of the top surface of the electromagnetic box body 1. An outer protective plate 33, which is annular and slides on the outer surface of the electromagnetic box body 1, is fixedly fitted on the arc surface of the limiting plate 32. An annular dustproof device is fixedly installed on the side of the outer protective plate 33 near the middle of the electromagnetic box body 1. The dustproof pad 34 is movably fitted on the outer surface of the electromagnetic box body 1. The length of the inner protective plate 31 matches the depth of the protective groove 11. The dustproof pad 34 is made of sponge material. By sliding the dustproof pad 34 on the outer surface of the electromagnetic box body 1, and by sliding the outer protective plate 33 on the outer surface of the electromagnetic box body 1 and the inner protective plate 31 on the inner protective groove 11, the dustproof pad 34 can clean the dust and small foreign objects attached to the outer surface of the electromagnetic box body 1 during the movement of the guide rod 2. The dustproof pad 34, the outer protective plate 33 and the inner protective plate 31 can prevent external dust and small foreign objects from entering the interior of the electromagnetic box body 1. The protective component 3 can always protect the electromagnetic box body 1, which is beneficial to improving the service life of the electromagnetic box body 1 and preventing external dust and small foreign objects from entering the interior of the electromagnetic box body 1.

[0022] Example 2: As Figures 1-3 As shown: The top end of the guide rod 2 is fixedly installed on the bottom surface of the limiting plate 32, and the bottom end of the guide rod 2 passes through the limiting plate 32 located at the bottom. The limiting plate 32 located at the bottom is fixedly fitted onto the outer surface of the guide rod 2.

[0023] When the guide rod 2 moves, it can drive the protective components 3 at both ends of it to move together along the inner wall of the protective groove 11.

[0024] A spring 23 is sleeved on the top of the guide rod 2, and the two ends of the spring 23 are respectively fixedly installed on the top surface of the electromagnetic box body 1 and the bottom surface of the limiting plate 32.

[0025] When the electromagnet coil is energized, the electromagnetic attraction generated can drive the guide rod 2 and the contact 22 at its bottom to move downwards. Then the contact 22 closes with the contact point, and the spring 23 is compressed. When the electromagnet coil is de-energized, the elastic force of the spring 23 can drive the guide rod 2 to move towards the top of the electromagnet box body 1.

[0026] The working principle and use process of the utility model: the protective electromagnetic switch assembly, through the setting that dustproof pad 34 is sleeved in the electromagnetic box body 1 outer surface slidingly and the setting that outer protective plate 33 is sleeved in the electromagnetic box body 1 outer surface and inner protective plate 31 is sleeved in the protective groove 11 inside slidingly, the electromagnetic attraction that generates after the electromagnetic coil is energized, will close the contact 22 and contact point, at this moment will make guide rod 2 move downward, then guide rod 2 drives the protective assembly 3 at both ends to move together, in this process, dustproof pad 34 can clean the dust and smaller foreign matter adhered on the electromagnetic box body 1 outer surface, and dustproof pad 34, outer protective plate 33 and inner protective plate 31 can hinder the dust and smaller foreign matter of outside to enter the electromagnetic box body 1 inside, when guide rod 2 moves, the protective assembly 3 can always protect the electromagnetic box body 1, avoid the dust and smaller foreign matter of outside to enter the inside of electromagnetic box body 1.

[0027] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for clarity, the skilled in the art should regard the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the skilled in the art can understand.

Claims

1. A protective electromagnetic switch assembly, comprising a cylindrical electromagnetic box body (1), wherein a guide rod (2) is installed through the interior of the electromagnetic box body (1), an electromagnetic copper plate (21) is fixedly installed at the bottom end of the guide rod (2), and a contact (22) is fixedly installed on the bottom surface of the electromagnetic copper plate (21). Its features are: The electromagnetic box body (1) is provided with protective components (3) at both the upper and lower ends, and the electromagnetic box body (1) is provided with annular protective grooves (11) at the edges of both the upper and lower sides. The protective component (3) includes an inner protective plate (31) that is annular and movably fitted inside the protective groove (11). A limiting plate (32) is fixedly installed on the side of the inner protective plate (31) away from the middle of the electromagnetic box body (1). The diameter of the limiting plate (32) is the same as the diameter of the top surface of the electromagnetic box body (1). An outer protective plate (33) that is annular and slidably fitted on the outer surface of the electromagnetic box body (1) is fixedly fitted on the arc surface of the limiting plate (32). An annular dustproof pad (34) is fixedly installed on the side of the outer protective plate (33) near the middle of the electromagnetic box body (1). The dustproof pad (34) is movably fitted on the outer surface of the electromagnetic box body (1).

2. The protective electromagnetic switch assembly according to claim 1, characterized in that: The length of the inner protective plate (31) matches the depth of the protective groove (11), and the dustproof pad (34) is made of sponge material.

3. The protective electromagnetic switch assembly according to claim 1, characterized in that: The top end of the guide rod (2) is fixedly installed on the bottom surface of the limiting plate (32), and the bottom end of the guide rod (2) passes through the limiting plate (32) located at the bottom. The limiting plate (32) located at the bottom is fixedly fitted on the outer surface of the guide rod (2).

4. The protective electromagnetic switch assembly according to claim 1, characterized in that: A spring (23) is sleeved on the top of the guide rod (2), and the two ends of the spring (23) are respectively fixedly installed on the top surface of the electromagnetic box body (1) and the bottom surface of the limiting plate (32).

Images