Electromagnet integrating position monitoring and power supply control

Abstract

The utility model discloses an electromagnet integrating position monitoring and power supply control, which comprises a shell with a hollow cavity, a static armature and a moving armature which can move relatively are arranged on the hollow cavity, coils fixedly arranged in the shell are sleeved on the static armature and the moving armature, the static armature is fixedly arranged on the shell, and a guide shaft is arranged on the moving armature; a support is further fixedly arranged on the shell, a PCBA board is quickly connected to the support, a position sensor, a power controller, an external wiring terminal and an internal wiring terminal are arranged on the PCBA board, the internal wiring terminal is connected with the coil, and the guide shaft can sequentially penetrate through the static armature and the PCBA board to extend and be arranged in an induction groove of the position sensor. The utility model has the main beneficial effects that the position sensor can detect the position of the guide shaft in real time to avoid misoperation, meanwhile, the position sensor is simple and convenient to install and can be used for a long time, the service life is prolonged, in addition, the position sensor is integrated on a PCBA (Printed Circuit Board Assembly) to reduce the occupied space and facilitate reasonable layout, and the applicability is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnets, and in particular to an electromagnet integrating position monitoring and power supply control. Background Art

[0002] Magnets are used as pin-type brake devices that are energized to disengage (release) and de-energized to spring brakes. They have the advantages of compact structure, easy installation, wide adaptability, low noise, sensitive action, and reliable braking. They are widely used in electromechanical equipment in the fields of aviation and aerospace. According to the product characteristics of electromagnets and electromagnetic theory, the electromagnetic force generated by electromagnets is inversely proportional to the square of their air gaps. Therefore, in theory, at the initial current value, if the active parts of the electromagnet can move, they must be able to move in place.

[0003] For example, the authorization announcement number CN209496354U discloses a touch screen clicking device, including a shell, an electromagnet is arranged inside the shell; the coil of the electromagnet is wound on the electromagnet bracket, and a PCB soft board is arranged at one end of the electromagnet bracket; a carrier sheet is arranged on the other end of the electromagnet bracket, and a click buffer patch is attached to the carrier sheet; the PCB soft board is electrically connected to the click buffer patch and the carrier sheet through a flexible connector made of a flexible connecting material; a click contact is formed by the click buffer patch and the carrier sheet; the PCB soft board is used for the access of an external power supply, and the PCB soft board provides power for the electromagnet and the click contact at the same time. However, the click buffer patch will gradually age and fail due to the increase in the number of times the motion bar is pressed, and it needs to be replaced regularly. The disassembly and replacement steps are time-consuming and labor-intensive, and increase the work intensity. In addition, the PCB soft board is connected to the external power supply through a power cord, which will greatly increase the volume of the entire electromagnet system, and cannot be used in some applications where space is relatively cramped, increasing the cost of the electromagnet system. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an electromagnet integrating position monitoring and power supply control.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An electromagnet with integrated position monitoring and power supply control comprises a shell with a hollow cavity, wherein a relatively movable static armature and a movable armature are provided on the hollow cavity, a coil fixed in the shell is sleeved on the static armature and the movable armature, the static armature is fixed on the shell, and a guide shaft is provided on the movable armature; a bracket is also fixed on the shell, a PCBA board is quickly connected to the bracket, a position sensor, an external wiring terminal and an internal wiring terminal are provided on the PCBA board, the internal wiring terminal is connected to the coil, and the guide shaft can sequentially penetrate the static armature and the PCBA board and extend to be placed in the sensing slot of the position sensor.

[0007] Preferably, the guide shaft includes a straight end and a large diameter end and a small diameter end arranged at both ends thereof, one end of the static armature is provided with a large limiting groove adapted to the large diameter end, and the other end is provided with a small limiting groove adapted to the small diameter end, and the diameter of the small limiting groove is between the diameter of the straight end and the diameter of the small diameter end.

[0008] Preferably, a return spring is sleeved on the straight end, one end of the return spring abuts against the large diameter end, and the other end abuts against the static armature at the small limit groove.

[0009] Preferably, the guide shaft is threaded onto the movable armature.

[0010] Preferably, the bracket is circular, and its diameter is the same as that of the shell. The PCBA board is screwed to the bracket by bolts. The bolts are evenly distributed around the PCBA board, and the angles formed by adjacent bolts and the center of the PCBA are the same.

[0011] Preferably, a power controller is also fixedly provided on the PCBA board, and the power controller is electrically connected to the external wiring terminals and the internal wiring terminals.

[0012] Preferably, the coil is cylindrical, one end of which abuts against the bracket and the other end abuts against the end cover, and the coil, the bracket and the end cover are always in close contact with the inner wall of the shell.

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

[0014] 1. With exquisite design, the position sensor can detect the position of the guide shaft in real time to avoid misoperation and improve safety. At the same time, the position sensor is easy and convenient to install, can be used for a long time, and prolongs its service life. In addition, integration on the PCBA board can reduce the occupied space, facilitate reasonable layout, and has a wide range of applicability;

[0015] 2. The setting of the large diameter end and the small diameter end can limit the moving position of the guide shaft, so as to avoid the guide shaft moving too far and interfering with external equipment, causing damage and prolonging its service life;

[0016] 3. The PCBA board is fixed on the bracket by bolts, which can be quickly disassembled and installed, greatly improving work efficiency. In addition, the bolts are evenly distributed around the PCBA board, which can play a good stabilizing role, avoid tilting and other situations, and improve safety;

[0017] 4. Fix the bracket at the tail of the electromagnet to make the entire electromagnet product compact, reduce the cost of the electromagnet system, and have a wider applicability;

[0018] 5. The position sensor, power controller, external wiring terminals and internal wiring terminals are integrated on the PCBA board, making the layout reasonable and compact, avoiding the use of external independent circuits, greatly reducing the space occupancy rate of the system, and is particularly suitable for applications with relatively cramped space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 : A three-dimensional diagram of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] like Figure 1 As shown, the utility model discloses an electromagnet with integrated position monitoring and power control, including a shell 1 with a hollow cavity 11, on which a relatively movable stationary armature 2 and a moving armature 3 are provided, and the stationary armature 2 and the moving armature 3 are sleeved with a coil 9 fixed in the shell 1, the stationary armature 2 is fixed on the shell 1, and a guide shaft 4 is screwed on the moving armature 3. Of course, the guide shaft 4 can also be fixed on the moving armature 3 by other means, such as welding, etc. The screw connection is adopted in the preferred embodiment of the utility model to facilitate quick disassembly and installation, thereby greatly improving work efficiency.

[0024] The guide shaft 4 includes a straight end 43 and a large diameter end 41 and a small diameter end 42 arranged at both ends thereof. One end of the static armature 2 is provided with a large limit groove 21 adapted to the large diameter end 41, and the other end is provided with a small limit groove 22 adapted to the small diameter end 42. The diameter of the small limit groove 22 is between the diameter of the straight end 43 and the diameter of the small diameter end 42. In the above, the arrangement of the large diameter end 41 and the small diameter end 42 can limit the moving position of the guide shaft 4, avoid the guide shaft 4 from moving too far, interfere with external equipment, and cause damage, thereby extending the service life.

[0025] A return spring 44 is sleeved on the straight end 43, one end of the return spring 44 abuts against the large diameter end 41, and the other end abuts against the static armature 2 at the small limit groove 22. The setting of the return spring 44 can reset the guide shaft 4 after the work is completed, ensuring the uniformity of position during the next work, greatly improving work efficiency and accuracy.

[0026] The housing 1 is also fixed with a bracket 5, which is circular and has the same diameter as the housing 1. The bracket 5 is quickly connected with a PCBA board 6, which is provided with a position sensor 61, a power controller 64, an external wiring terminal 62 and an internal wiring terminal 63. The power controller 64 is electrically connected to the external wiring terminal 62 and the internal wiring terminal 63, the internal wiring terminal 63 is electrically connected to the coil 9, the external wiring terminal 62 is electrically connected to external components, and the guide shaft 4 can sequentially penetrate the static armature 2 and the PCBA board 6 and extend to be placed in the sensing slot 611 of the position sensor 61. The above design is exquisite, the position sensor can detect the position of the guide shaft in real time, avoid the occurrence of misoperation, and improve safety. At the same time, the position sensor is simple and convenient to install, can be used for a long time, and prolongs its service life. In addition, integration on the PCBA board can reduce the occupied space, facilitate reasonable layout, and has a wide applicability.

[0027] In this preferred embodiment, the PCBA board 6 is screwed to the bracket 5 by bolts 69, and the bolts 69 are evenly distributed around the PCBA board 6, and the angles formed by the adjacent bolts 69 and the center of the PCBA 6 are the same. The above-mentioned connection using bolts 69 can achieve rapid disassembly and installation, greatly improving work efficiency. In addition, the bolts 69 are evenly distributed around the PCBA board, which can play a good stabilizing role, avoid tilting and other situations, and improve safety.

[0028] The coil 9 is cylindrical, one end of which abuts against the bracket 5, and the other end abuts against the end cover 7. The coil 9, the bracket 5 and the end cover 7 are always in close contact with the inner wall of the housing 1. Fixing the bracket 5 at the tail of the electromagnet makes the entire electromagnet product compact, reduces the cost of the electromagnet system, and has a wide applicability.

[0029] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0030] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An electromagnet with integrated position monitoring and power control, comprising a housing (1) having a hollow cavity (11), characterized in that: The hollow cavity (11) is provided with a relatively movable stationary armature (2) and a movable armature (3); the stationary armature (2) and the movable armature (3) are sleeved with a coil (9) fixed in the housing (1); the stationary armature (2) is fixed on the housing (1); the movable armature (3) is provided with a guide shaft (4); the housing (1) is also provided with a bracket (5); a PCBA board (6) is quickly connected to the bracket (5); a position sensor (61), a power controller (64), an external wiring terminal (62) and an internal wiring terminal (63) are provided on the PCBA board (6); the internal wiring terminal (63) is connected to the coil (9); the guide shaft (4) can sequentially penetrate the stationary armature (2) and the PCBA board (6) and extend to be placed in a sensing slot (611) of the position sensor (61).

2. The electromagnet with integrated position monitoring and power control according to claim 1, characterized in that: The guide shaft (4) comprises a straight end (43) and a large diameter end (41) and a small diameter end (42) arranged at both ends thereof; one end of the stationary armature (2) is provided with a large limit groove (21) adapted to the large diameter end (41); the other end is provided with a small limit groove (22) adapted to the small diameter end (42); the diameter of the small limit groove (22) is between the diameter of the straight end (43) and the diameter of the small diameter end (42).

3. The electromagnet with integrated position monitoring and power control according to claim 2, characterized in that: A return spring (44) is sleeved on the straight end (43), one end of the return spring (44) abuts against the large diameter end (41), and the other end abuts against the stationary armature (2) at the small limit groove (22).

4. The electromagnet with integrated position monitoring and power control according to claim 2, characterized in that: The guide shaft (4) is screwed onto the movable armature (3).

5. The electromagnet with integrated position monitoring and power control according to claim 1, characterized in that: The bracket (5) is circular in shape, and its diameter is the same as the diameter of the housing (1). The PCBA board (6) is screwed onto the bracket (5) via bolts (69). The bolts (69) are evenly distributed around the PCBA board (6), and the angles formed by adjacent bolts (69) and the center of the PCBA (6) are the same.

6. The electromagnet with integrated position monitoring and power control according to claim 1, characterized in that: The coil (9) is cylindrical, one end of which abuts against the bracket (5) and the other end of which abuts against the end cover (7); the coil (9), the bracket (5) and the end cover (7) are always in close contact with the inner wall of the shell (1).

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