Novel-structure direct-current wet-type valve electromagnet
By optimizing the structure of the coil and guide sleeve part of the DC wet valve, the problem of difficult to ensure product consistency during the winding manufacturing process is solved, and by setting convex ribs and magnetic spacers on the guide sleeve part, the electromagnetic iron is ensured stability and functional normality.
Patent Information
- Application Number
- CN202420255468.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing DC wet valve electromagnets have problems in the winding manufacturing process that product consistency is difficult to ensure, and the guide sleeve part is prone to stuck in the armature due to oil cleanliness and failure of function.
A new structure of DC wet valve electromagnet was designed. The coil part adopts an I-shaped frame, spiral groove, clamping groove, inlet groove and outlet groove, which is convenient for the winding of enameled wire; the guide sleeve part is carried out through the magnet The inner hole of the weldment is equipped with convex ribs, and the outer circle of the armature assembly is equipped with magnetic spacers to ensure reasonable air gaps.
The convenience of enameled wire winding and product consistency are achieved, ensuring the normal function and high stability of the electromagnet, and avoiding functional failure caused by armature jamming.
Smart Images
Figure CN222483109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnets, in particular to an electromagnet for a DC wet valve with a new structure. Background Art
[0002] The DC wet valve electromagnet is an electromagnetic attraction device composed of a coil, an iron core, an insulating material and a shell. Its main principle is to use the magnetic field generated when the current passes through the coil to strongly magnetize the iron core, convert electrical energy into magnetic energy, and generate a strong magnetic field, thereby achieving the purpose of attracting or pushing away magnetic objects such as iron and steel. DC wet electromagnets are widely used in industries, transportation, medical equipment, scientific experiments and other fields.
[0003] The electromagnet for DC wet valve is generally composed of two parts: the excitation coil and the magnetic sleeve. It has the following problems:
[0004] (1) Coil part: The inner wall of the traditional "I"-shaped frame is smooth, and a wire entry slot is set up. The enameled wire is "neatly" wound in the "I"-shaped slot. In actual production, whether the winding is neat depends on the number of layers of the coil and the proficiency of the workers. The more layers there are, the thinner the wire diameter is, and the more difficult it is to wind it. For special types of coils, products that require small winding space, precise number of turns, and precise resistance cannot strictly guarantee product consistency. The more layers of the coil, the more difficult it is to achieve close and approximately parallel winding of each layer and each turn. After the enameled wire is stacked, the number of coil turns will be consistent, the resistance will be inconsistent, and the total length of the enameled wire will be uncontrolled, resulting in waste, and in severe cases, even causing the winding to be scrapped.
[0005] (2) Guide sleeve part: The electromagnet for conventional DC wet valves usually has a 0.3mm gap between the armature and the inner hole of the stopper weldment. During assembly, a layer of 0.13mm thick polytetrafluoroethylene cloth is coated on the outer circle of the armature to ensure the free sliding of the armature in the guide sleeve and a reasonable air gap. First, the inner hole of the magnetic sleeve is processed into a straight hole. During assembly, the cut polytetrafluoroethylene cloth is coated on the outside of the armature and installed in the stopper weldment. In actual working conditions, the inner hole of the guide sleeve of this structure is connected to the T-port of the hydraulic system. Due to the cleanliness of the oil, small particles often enter the guide sleeve, scratch the polytetrafluoroethylene cloth, cause the polytetrafluoroethylene cloth to be damaged and virtual, and cause the armature to be stuck and the electromagnet to fail.
[0006] In order to solve the above problems, it is particularly necessary to design a new type of electromagnet for DC wet valve. Utility Model Content
[0007] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an electromagnet of a new structure for a DC wet valve, which has a simple structure, a reasonable design, is easy to wind, and ensures product consistency. The electromagnet also has normal function, high stability, strong practicality, and is easy to promote and use.
[0008] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a new structure of a DC wet valve electromagnet, including a coil and a guide sleeve, the coil part includes a skeleton, a spiral groove, a wire clamping groove, an inlet groove and an outlet groove, the skeleton is an I-shaped frame, the end face of the skeleton is provided with an interlayer to form a wire clamping groove, the end of the wire clamping groove is respectively provided with an inlet groove and an outlet groove on the side of the skeleton, and the frame of the skeleton is provided with a spiral groove along the inlet groove; the guide sleeve part includes a magnetic sleeve weldment, a convex rib, an armature assembly, a cover assembly, and a magnetic isolation sheet, the inner hole of the magnetic sleeve weldment is provided with a convex rib, the magnetic sleeve weldment is clearance-matched with the armature assembly through the convex rib, the outer circle of the armature assembly is provided with a magnetic isolation sheet, and the end of the magnetic sleeve weldment is installed with a cover assembly.
[0009] Preferably, the pitch of the spiral groove is consistent with the wire diameter, and the rotation direction of the spiral groove is consistent with the winding direction.
[0010] Preferably, the widths of the wire clamping groove, the wire inlet groove and the wire outlet groove are all consistent with the diameter of the enameled wire. The wire is wound from the wire inlet groove, and after the winding is completed, the enameled wire is clamped into the wire outlet groove for output.
[0011] Preferably, two convex ribs are provided, symmetrically distributed at the inner hole of the magnetic sleeve weldment, and the size of the convex ribs is 0.5 mm in width and 0.15 mm in height.
[0012] Preferably, the armature outer circle of the armature assembly is gap-matched with the inner hole of the convex rib, and the armature reciprocates on the two convex ribs within the full stroke to ensure a reasonable air gap.
[0013] The beneficial effects of the utility model are as follows: the device is convenient for winding enameled wire, can ensure product consistency, and the electromagnet functions normally, has no risk of failure, has high stability, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;
[0015] Figure 1 It is a schematic diagram of the skeleton structure of the coil part of the utility model;
[0016] Figure 2 It is a schematic diagram of the winding direction of the enameled wire of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the guide sleeve part of the utility model. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] Reference Figure 1-3 , this specific implementation adopts the following technical scheme: a new structure DC wet valve electromagnet, including a coil and a guide sleeve, the coil part includes a skeleton 1, a spiral groove 2, a wire clamping groove 3, an inlet groove 4 and an outlet groove 5, the skeleton 1 is an I-shaped frame, the end face of the skeleton 1 is provided with a wire clamping groove 3, the end of the wire clamping groove 3 is respectively provided with an inlet groove 4 and an outlet groove 5 on the side of the skeleton 1, and the frame of the skeleton 1 is provided with a spiral groove 2 along the inlet groove 4; the guide sleeve part includes a magnetic sleeve weldment 6, a convex rib 7, an armature assembly 8, a cover assembly 9, and a magnetic isolation sheet 10, the inner hole of the magnetic sleeve weldment 6 is provided with a convex rib 7, the magnetic sleeve weldment 6 is clearance-matched with the armature assembly 8 through the convex rib 7, the outer circle of the armature assembly 8 is provided with a magnetic isolation sheet 10, and the end of the magnetic sleeve weldment 6 is installed with a cover assembly 9.
[0020] This specific implementation is improved on the basis of the traditional valve electromagnet structure, and the structure of the coil and the magnetic sleeve is optimized. First, at the bottom of the skeleton, a spiral groove 2 with a pitch consistent with the wire diameter is designed along the wire inlet groove 4. The rotation direction of the spiral groove 2 is consistent with the winding direction. The spiral grooves 2 are arranged closely, which is convenient for the enameled wire to enter the groove; in addition, a sandwich is set on the end face of the skeleton to form a wire clamping groove 3, in which the wire inlet groove 4 is used for wire inlet and the wire outlet groove 5 is used for wire outlet. The groove widths of the wire clamping groove 3, the wire inlet groove 4 and the wire outlet groove 5 are all consistent with the wire diameter of the enameled wire. During winding, the enameled wire is wound from the wire inlet groove 4 through the wire clamping groove 3. According to the width of the skeleton, the number of turns is set to an even number of layers. After the coil is wound, the end enameled wire just returns to the starting end of the winding, and the enameled wire is clamped into the wire outlet groove 5 for outlet.
[0021] Secondly, the electromagnet structure of the device is also provided with convex ribs 7 at the inner hole position of the magnetic sleeve weldment 6. There are two convex ribs 7, which are symmetrically distributed at the inner hole of the magnetic sleeve weldment 6. The size of the convex ribs 7 is 0.5mm wide and 0.15mm high. In this way, the armature outer circle of the armature assembly 8 is matched with the inner hole clearance of the convex ribs. The armature reciprocates on the two convex ribs within the full stroke, and a reasonable air gap can be ensured. In actual working conditions, the guide sleeve under this structure has no abnormal wear on the iron-blocking weldment and the outer circle of the armature, and the solenoid valve switches without abnormality.
[0022] The specific implementation method simplifies the electromagnet structure, which is tightly and evenly wound without disordered stacking. The inlet and outlet ends of the enameled wire can be inserted into the wire groove and fixed, and the position of the inlet and outlet wires can be stably controlled. The inlet and outlet wire grooves protect and position the enameled wires, and at the same time have no effect on the electromagnet's suction performance, thereby improving the overall stability. The electromagnet can be widely used in the field of engineering hydraulics and has broad market application prospects.
[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A new structure of a direct current wet valve electromagnet, characterized in that: The invention comprises two parts, a coil and a guide sleeve. The coil part comprises a frame (1), a spiral groove (2), a wire clamping groove (3), a wire inlet groove (4) and a wire outlet groove (5). The frame (1) is an I-shaped frame. An interlayer is arranged on the end surface of the frame (1) to form a wire clamping groove (3). The end of the wire clamping groove (3) is respectively provided with a wire inlet groove (4) and a wire outlet groove (5) on the side surface of the frame (1). The frame body of the frame (1) is provided with a rotation direction and a winding direction along the wire inlet groove (4). The guide sleeve part comprises a magnetic sleeve weldment (6), a convex rib (7), an armature assembly (8), a cover assembly (9), and a magnetic isolation sheet (10). The inner hole of the magnetic sleeve weldment (6) is provided with a convex rib (7). The magnetic sleeve weldment (6) is clearance-matched with the armature assembly (8) through the convex rib (7). The outer circle of the armature assembly (8) is provided with a magnetic isolation sheet (10). The end of the magnetic sleeve weldment (6) is provided with a cover assembly (9).
2. A new structure electromagnet for a direct current wet valve according to claim 1, characterized in that: The pitch of the spiral groove (2) is consistent with the wire diameter.
3. The electromagnet for a new structure direct current wet valve according to claim 1 is characterized in that: The widths of the wire clamping groove (3), the wire inlet groove (4) and the wire outlet groove (5) are all consistent with the diameter of the enameled wire.
4. A new structure electromagnet for a direct current wet valve according to claim 1, characterized in that: The convex ribs (7) are provided with two symmetrically distributed at the inner hole position of the magnetic conductive sleeve welding part (6).
5. The electromagnet for a new structure direct current wet valve according to claim 1 is characterized in that: The size of the convex rib (7) is 0.5 mm in width and 0.15 mm in height.
6. A new structure electromagnet for a direct current wet valve according to claim 1, characterized in that: The armature outer circle of the armature assembly (8) is clearance-matched with the inner hole of the convex rib, and the armature reciprocates on the two convex ribs within the full stroke.