Magnetorheological electromagnet

Abstract

The magneto-rheological electromagnet comprises a shell (1), a coil (6) is wound in a coil assembling groove (1.2) in the outer wall of the shell (1), a wire (2) is connected to the coil (6) after being inserted into the shell (1), the wire (2) is connected to a connecting column (3), the connecting column (3) is inserted into a mounting piece (2), the mounting piece (2) is embedded in a mounting hole (1.1) of the shell (1), a wire groove (1.3) is formed in the shell (1), and the wire groove (1.3) is connected with the wire (6). And a leading-out wire of the coil (6) passes through the wiring trough (1.3) and then is connected to the connecting column (3). The magneto-rheological electromagnet has the advantages of being resistant to pressure, good in sealing effect and reliable in assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electromagnet, especially an electromagnet applied to magnetorheological technology, and belongs to the technical field of electromagnet. BACKGROUND

[0002] At present, magnetorheological technology is widely applied to engineering vehicles, industrial processing equipment, medical instruments and other fields to play a damping and buffering role. For example, the piston type magnetorheological damper disclosed in Chinese patent CN218325953U, the core of which is to control the current flowing into the excitation coil of the electromagnet to adjust the viscosity between the electromagnet and the magnetorheological liquid, and then change the damping force of the reciprocating motion in the cavity. Since the adjustment is based on electromagnetic characteristics, the response speed is fast. However, in actual application, it is found that the magnetorheological fluid pressure is relatively large, generally at 10MPa, and even can reach 20MPa instantaneously, so that after long-term high-pressure use, oil leakage occurs between the lead wire penetrating the electromagnet in the damper and the inner wall of the shell of the electromagnet serving as a piston, thereby affecting the damping and buffering effect. At the same time, the electromagnet lead wire in the above-mentioned damper is assembled in a straight insertion manner, which has poor assembly effect and is also not conducive to improving the pressure resistance. Therefore, a pressure-resistant magnetorheological electromagnet capable of solving the above problems is needed. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects, and provides a magnetorheological electromagnet which is pressure-resistant, has good sealing effect and reliable assembly.

[0004] The utility model aims at overcoming the above-mentioned defects, and provides a magnetorheological electromagnet which is pressure-resistant, has good sealing effect and reliable assembly.

[0005] A magnetorheological electromagnet comprises a shell, a coil is arranged in a coil assembly groove on the outer wall of the shell, a lead wire is inserted into the shell and connected to the coil, the lead wire is connected to a connecting column, the connecting column is inserted into a mounting piece, the mounting piece is embedded in a mounting hole of the shell, a lead wire groove is arranged on the shell, and the lead-out wire of the coil is connected to the connecting column through the lead wire groove.

[0006] Preferably, the mounting hole is a stepped hole, and the mounting piece is embedded on the stepped surface of the stepped hole.

[0007] Preferably, a sealing groove of annular structure is arranged on the outer wall of the mounting piece, and a sealing ring is embedded in the sealing groove and tightly contacts the inner wall of the mounting hole.

[0008] Preferably, the connecting column is inserted into a plug-in hole of the mounting piece, the plug-in hole is a stepped hole, and a sealing ring is sleeved on the outer wall of the connecting column and located in the large-diameter end of the stepped hole.

[0009] Preferably, a limiting ring is arranged on the upper part of the connecting column and is placed on the top surface of the mounting piece.

[0010] Preferably, the mounting hole, the wire slot and the sealing groove are formed with the sealing layer by injection molding.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] The sealing performance is improved by the sealing ring, and the oil leakage is avoided; meanwhile, the connecting column is used for assembling and connecting the wire, the assembling effect is improved, the pressure resistance is higher, and the assembling is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the magnetorheological electromagnet.

[0014] Figure 2 It is a sectional view of the utility model. Figure 1

[0015] Figure 3 It is another sectional view (cut along the wire slot) of the utility model. Figure 1

[0016] Among them:

[0017] The shell 1, the mounting piece 2, the connecting column 3, the sealing ring one 4, the sealing ring two 5, the coil 6, the coil support 7, the wire 8, the sealing layer 9;

[0018] The mounting hole 1.1, the coil assembly slot 1.2, the wire slot 1.3;

[0019] The sealing groove 2.1, the plug-in hole 2.2;

[0020] The limiting ring 3.1, the wire connecting hole 3.2. DETAILED DESCRIPTION

[0021] Referring to Figures 1-3 The utility model relates to a magnetorheological electromagnet, contain shell 1, the outer wall of shell 1 is provided with the coil assembly slot 1.2 of annular structure, coil 6 is arranged in coil assembly slot 1.2, and the coil assembly slot 1.2 is formed with coil support 7 between coil 6 and the groove bottom while being injection sealed,

[0022] ​​The center of the shell 1 is provided with a mounting hole 1.1 for inserting the wire 8, the mounting hole 1.1 is a stepped hole, the mounting piece 2 made of plastic is embedded in the mounting hole 1.1, and the diameter of the mounting piece 2 is consistent with the hole diameter of the large hole diameter end of the stepped hole of the mounting hole 1.1, a ring-shaped sealing groove 2.1 is formed on the outer wall of the mounting piece 2, the sealing ring one 4 is embedded in the sealing groove 2.1, and the sealing ring one 4 is in close contact with the inner wall of the mounting hole 1.1 of the shell 1 to increase the sealing effect; two vertical plug-in holes 2.2 are arranged on the mounting piece 2, and the plug-in hole 2.2 is a stepped hole, a connecting column 3 is inserted into the large hole diameter end of the plug-in hole 2.2, and the diameter of the connecting column 3 is consistent with the small hole diameter end of the plug-in hole 2.2, the sealing ring two 5 is sleeved on the outer wall of the connecting column 3, and the sealing ring two 5 is located in the large hole diameter end of the plug-in hole 2.2, so that the sealing effect between the connecting column 3 and the inner wall of the plug-in hole 2.2 is enhanced; a limiting ring 3.1 is arranged on the upper part of the connecting column 3, and the limiting ring 3.1 is placed on the top surface of the mounting piece 2 (that is, during the process of inserting the connecting column 3 into the plug-in hole 2.2, the limiting ring 3.1 plays a limiting role to prevent the connecting column 3 from being inserted too much), and the wire connecting hole 3.2 is formed in the bottom of the connecting column 3 along the radial direction, and the wire 8 is inserted into the wire connecting hole 3.2 and is welded.

[0023] The top surface of the shell 1 is provided with a wire groove 1.3, and the wire groove 1.3 is communicated with the mounting hole 1.1 and the coil assembly groove 1.2, and the lead-out wire of the coil 6 in the coil assembly groove 1.2 is connected to the connecting column 3 after passing through the wire groove 1.3.

[0024] During the assembly of the magnetorheological electromagnet, the wire 8 is first mounted on the connecting column 3, and the sealing ring one 4 and the sealing ring two 5 are sleeved on the sealing groove 2.1 of the mounting piece 2 and the connecting column 3 respectively.

[0025] Subsequently, the wire 2 can be first inserted through the plug-in hole 2.2, then the connecting column 3 is inserted into the plug-in hole 2.2, and then the mounting piece 2 with the connecting column 3 is embedded in the mounting hole 1.1 of the shell 1; or the mounting piece 2 can be first embedded in the mounting hole 1.1 of the shell 1, and then the wire 2 is inserted through the plug-in hole 2.2, and then the connecting column 3 is inserted into the plug-in hole 2.2.

[0026] During the above installation process, each contact part is coated with glue to enhance the connection and sealing effect, and after installation, the mounting hole 1.1, the wire groove 1.3 and the sealing groove 2.1 are injection molded and sealed to form a sealing layer 9.

[0027] In addition: It should be noted that the above specific embodiments are only an optimized scheme of the patent, and any changes or improvements made by those skilled in the art based on the above concept are within the protection scope of the patent.

Claims

1. A magnetorheological electromagnet comprising a housing (1), wherein a coil (6) is wound within a coil mounting groove (1.2) on the outer wall of the housing (1), and a wire (2) is inserted into the housing 1 and connected to the coil (6), characterized in that: The wire (2) is connected to the connecting post (3), the connecting post (3) is inserted into the mounting part (2), the mounting part (2) is embedded in the mounting hole (1.1) of the housing (1), the housing (1) is provided with a wire groove (1.3), and the lead wire of the coil (6) is connected to the connecting post (3) after passing through the wire groove (1.3).

2. The magnetorheological electromagnet according to claim 1, characterized in that: The mounting hole (1.1) is a stepped hole. When the mounting part (2) is inserted into the mounting hole (1.1), it rests on the stepped surface of the stepped hole.

3. The magnetorheological electromagnet according to claim 1, characterized in that: The outer wall of the mounting part (2) is provided with a sealing groove (2.1) of an annular structure, and the sealing ring (4) is embedded in the sealing groove (2.1) and in close contact with the inner wall of the mounting hole (1.1).

4. The magnetorheological electromagnet according to claim 1, characterized in that: The connecting post (3) is inserted into the insertion hole (2.2) of the mounting part (2). The insertion hole (2.2) is a stepped hole. A sealing ring (5) is fitted on the outer wall of the connecting post (3) and is located in the large diameter end of the stepped hole.

5. The magnetorheological electromagnet according to claim 1, characterized in that: A limiting ring (3.1) is provided on the upper part of the connecting column (3), and the limiting ring (3.1) rests on the top surface of the mounting part (2).

6. The magnetorheological electromagnet according to claim 3, characterized in that: A sealing layer (9) is formed by injection molding in the mounting hole (1.1), the wire groove (1.3), and the sealing groove (2.1).

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