High-safety electromagnet

Abstract

The utility model discloses a high-safety electromagnet which comprises a shell, the shell is provided with a hollow cavity, a coil frame is arranged in the hollow cavity, a fixing ring is fixedly arranged on the inner wall of the coil frame, a fixed iron core is fixedly arranged on one side of the fixing ring, and a fixing flange is fixedly arranged on the other side of the fixing ring. A movable iron core capable of sliding along the central axis of the fixed flange is arranged in the fixed flange; a locking block is further arranged at the end, away from the fixing ring, of the fixed iron core, the outer circumferential face of the locking block is completely attached to the inner wall of the shell, a contact pin is fixedly arranged in the locking block, and the contact pin is electrically connected with a coil arranged in the coil frame. The beneficial effects of the utility model are mainly reflected in that the design is exquisite, the pin can be accurately positioned and fixed through the arrangement of the locking block, the pin is prevented from displacing or moving, the stability of the connection between the pin and the coil as well as between the pin and an external power supply is improved, and the safety is greatly improved. In addition, the structure is improved on the basis of the structure of an original electromagnetic valve, a complex assembling structure is not needed, the connecting mode is stable and reliable, safety is high, and wide applicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnet, specifically, especially, a kind of high safety electromagnet. BACKGROUND

[0002] Electromagnet is a kind of device that generates electromagnetic when electrified, after inserting iron core inside coil, the process that iron core is magnetized by the magnetic field of coil.DC electromagnet actuator is installed in metal shell, and electric signal is connected with control system through cable.

[0003] As China patent No.202422141985.1 discloses an assembled electromagnet, including shell and the electromagnetic assembly arranged in, the side of the shell is equipped with locating block, the through groove is opened in the locating block, the terminal is equipped in the through groove, the horizontal end of the terminal is connected with the coil on the electromagnetic assembly through the through groove, the vertical end of the terminal extends in the plug-in sheath, the plug-in sheath is sleeved on the locating block, and is locked together by locking member. However, the connection structure is complex, the overall structure of the original electromagnet is changed, additional process is needed, which leads to complex assembly and installation process, poor repeatability of assembly, and great limitation. SUMMARY

[0004] The utility model aims at overcoming the deficiencies of prior art, and provides a kind of high safety electromagnet.

[0005] The utility model discloses the purpose is realized by the following technical scheme:

[0006] A kind of high safety electromagnet, including shell, the shell has hollow cavity, the coil holder is equipped in the hollow cavity, fixed ring is fixed on the inner wall of the coil holder, fixed ring is fixed on the one side of the fixed ring, and fixed flange is fixed on the other side, the movable iron core that can slide along the axis in the fixed flange is equipped;The end of the fixed iron core away from the fixed ring is also equipped with locking block, the outer circumferential surface of the locking block is completely close to the inner wall of the shell, plug pin is fixed in the locking block, and the coil in the coil holder is electrically connected with the plug pin.

[0007] Preferably, the shell is integrally formed by a large-diameter end and a small-diameter end, the locking block includes a small-diameter portion and a large-diameter portion, the outer circumferential surface of the small-diameter portion is close to the inner wall of the small-diameter end, the end surface of one side of the large-diameter portion is close to the inner wall of the large-diameter end, and the end surface of the other side is close to the fixed iron core.

[0008] Preferably, a first sealing groove is formed on the outer circumferential surface of the fixed flange, a first sealing ring is arranged in the first sealing groove, and the outer circumferential surface of the first sealing ring is always close to the inner wall of the large-diameter end.

[0009] Preferably, a second sealing groove is formed on the outer circumferential surface of the small diameter part, and a second sealing ring is arranged in the second sealing groove, and the outer circumferential surface of the second sealing ring is always in close contact with the inner wall of the small diameter end.

[0010] Preferably, a sleeve is arranged at the end of the small diameter end away from the large diameter end, and the sleeve is screwed with the small diameter end.

[0011] Preferably, a positioning groove with a triangular cross section is formed on the fixed iron core, one side of the fixing ring is provided with a positioning block matched with the positioning groove, and the other side is provided with a limiting block, and a limiting groove matched with the limiting block is formed on the fixing flange.

[0012] Preferably, a gasket is arranged between the fixed iron core and the fixing ring.

[0013] The beneficial effects of the utility model mainly reflect in:

[0014] 1. The design is exquisite, the pin can be accurately positioned and fixed through the arrangement of the locking block, the displacement or movement of the pin is avoided, the stability of the pin, the coil and the external power supply connection is improved, and the safety is greatly improved. In addition, the structure is improved on the structure of the original electromagnetic valve, without complex assembly structure, and the connection mode is stable and reliable, safe, and has wide applicability.

[0015] 2. The locking block is integrally formed by two large diameter parts and small diameter parts with different diameters, and is shaped with the shell, can be inserted into the shell to complete positioning, the positioning mode is simple, convenient, stable and reliable, and greatly improves the work efficiency.

[0016] 3. The arrangement of the first sealing ring and the second sealing ring can avoid the corrosion of water vapor or oil, improve the safety, and prolong the service life.

[0017] 4. The fixed ring, the fixed iron core and the fixed flange can realize rapid positioning assembly, greatly improve the work efficiency, and have wide applicability. DRAWINGS

[0018] The technical scheme of the utility model will be further described below in combination with the drawings:

[0019] Figure 1 The cross-sectional view of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments are not limited to the utility model, and the changes made by ordinary skilled persons in the art in terms of structure, method, or function based on these embodiments are all included in the protection scope of the utility model.

[0021] The utility model will be described in detail below in combination with the specific embodiments shown in the drawings.

[0022] As Figure 1 The utility model discloses a high safety electromagnet, including the shell 1, the shell 1 has the hollow cavity 11, be equipped with coil holder 2 in the hollow cavity 11, coil holder 2 is built-in coil, in this embodiment, the function of the coil is to produce magnetic field, when the current passes through the coil 21, the electron in the coil will form electron flow, thereby producing a magnetic field.

[0023] The inner wall of coil holder 2 is fixed with fixed ring 3, one side of fixed ring 3 is fixed with fixed flange 5, and movable iron core 6 is arranged in fixed flange 5 and can slide along the axis thereof. Among the above, the fixed ring 3, the fixed flange 5 and the fixed flange 5 constitute the magnetic pole. The magnetic pole is provided with an armature, and the armature can slide in the magnetic pole. This structure is prior art, and the utility model will not be described in detail here.

[0024] The end of the fixed core 4 away from the fixed ring 3 is also provided with a locking block 7, the outer circumferential surface of the locking block 7 is completely attached to the inner wall of the shell 1, the locking block 7 is fixedly provided with a pin 8, and the pin 8 is electrically connected with the coil 21 arranged in the coil holder 2. The above design is ingenious, the pin 8 can be accurately positioned and fixed through the arrangement of the locking block 7, the displacement or movement of the pin is avoided, the stability of the connection between the pin, the coil and the external power supply is improved, and the safety is greatly improved.

[0025] The shell 1 is integrally formed by a large-diameter end 12 and a small-diameter end 13, the locking block 7 includes a small-diameter part 71 and a large-diameter part 72, the outer circumferential surface of the small-diameter part 71 is attached to the inner wall of the small-diameter end 13, the end face of one side of the large-diameter part 72 is attached to the inner wall of the large-diameter end 12, and the end face of the other side is attached to the fixed core 4. The locking block is integrally formed by two large-diameter parts and small-diameter parts with different diameters, and is shaped with the shell, can be inserted into the shell 1 to complete positioning, the positioning mode is simple, convenient, stable and reliable, and the working efficiency is greatly improved.

[0026] The outer circumferential surface of the fixed flange 5 is provided with a first sealing groove 14, and the first sealing groove 14 is provided with a first sealing ring 15, and the outer circumferential surface of the first sealing ring 15 is always in close contact with the inner wall of the large diameter end 12. The outer circumferential surface of the small diameter part 71 is provided with a second sealing groove 73, and the second sealing groove 73 is provided with a second sealing ring 74, and the outer circumferential surface of the second sealing ring 74 is always in close contact with the inner wall of the small diameter end 13. The first sealing ring 15 and the second sealing ring 74 can avoid the erosion of water vapor or oil, improve safety, and prolong the service life.

[0027] The small diameter end 13 is provided with a sleeve 16 away from the large diameter end 12, and the sleeve 16 is screwed with the small diameter end 13, so as to realize quick assembly and greatly improve the work efficiency.

[0028] The fixed iron core 4 is provided with a positioning groove 41 with a triangular cross section, one side of the fixed ring 3 is provided with a positioning block 31 matched with the positioning groove 41, and the other side is provided with a limiting block 32, and the fixed flange 5 is provided with a limiting groove 51 matched with the limiting block 32. The fixed iron core 4 and the fixed ring 3 are further provided with a gasket. The above design can realize quick positioning assembly, greatly improve the work efficiency, and has wide applicability.

[0029] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments which can be understood by those skilled in the art.

[0030] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and any equivalent embodiments or changes made without departing from the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A high safety electromagnet comprising a housing (1), characterized in that: The shell (1) has a hollow cavity (11), the coil holder (2) is arranged in the hollow cavity (11), the fixed ring (3) is fixedly arranged on the inner wall of the coil holder (2), the fixed ring (3) is fixedly arranged with the fixed flange (5) on one side, and the movable iron core (6) is arranged in the fixed flange (5) and can slide along the axis of the fixed flange (5); the fixed iron core (4) is further provided with a locking block (7) away from the fixed ring (3), the outer circumferential surface of the locking block (7) is completely attached to the inner wall of the shell (1), the locking block (7) is fixedly arranged with the pin (8), and the pin (8) is electrically connected with the coil (21) arranged in the coil holder (2).

2. The high safety electromagnet according to claim 1, characterized in that: The shell (1) is integrally formed by the large-diameter end (12) and the small-diameter end (13), the locking block (7) comprises a small-diameter part (71) and a large-diameter part (72), the outer circumferential surface of the small-diameter part (71) is attached to the inner wall of the small-diameter end (13), and the end face of one side of the large-diameter part (72) is attached to the inner wall of the large-diameter end (12), and the end face of the other side is attached to the fixed iron core (4).

3. The high safety solenoid according to claim 2, wherein: The outer circumferential surface of the fixed flange (5) is provided with a first sealing groove (14), the first sealing groove (14) is provided with a first sealing ring (15), and the outer circumferential surface of the first sealing ring (15) is always attached to the inner wall of the large-diameter end (12).

4. The high safety solenoid according to claim 2, wherein: The outer circumferential surface of the small-diameter part (71) is provided with a second sealing groove (73), the second sealing groove (73) is provided with a second sealing ring (74), and the outer circumferential surface of the second sealing ring (74) is always attached to the inner wall of the small-diameter end (13).

5. The high safety electromagnet according to claim 3 or 4, characterized in that: The small-diameter end (13) is further provided with a sleeve (16) away from the large-diameter end (12), and the sleeve (16) is screwed with the small-diameter end (13).

6. The high safety electromagnet according to claim 3 or 4, characterized in that: The fixed iron core (4) is provided with a positioning groove (41) with a triangular cross section, one side of the fixed ring (3) is provided with a positioning block (31) matched with the positioning groove (41), the other side is fixedly provided with a limiting block (32), and the fixed flange (5) is provided with a limiting groove (51) matched with the limiting block (32).

7. The high safety solenoid according to claim 3 or 4, characterized by: The fixed iron core (4) and the fixed ring (3) are further provided with a gasket.

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