Proportional flow control valve

Abstract

The utility model relates to a proportional flow control valve which comprises a movable iron core assembly driven by a coil assembly and a valve assembly controlled by the movable iron core assembly to be opened and closed. The framework piece wound with the upper coil winding and the pin piece form a coil assembly of an integrated structure, the upper portion of the coil assembly is a connector connector, and the lower portion of the coil assembly is a plug port communicated with a center hole of the framework piece. A movable iron core of the formed movable iron core assembly is arranged in a magnetic shield in a sliding mode, the magnetic shield wraps the pole shoe, and a push rod connected with the movable iron core penetrates out of the movable iron core assembly to drive the valve assembly. According to the proportional flow control valve, the coil assembly and the movable iron core assembly are assembled on the basis of an inserting mode, so that the assembling efficiency is greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a proportional flow control valve, in particular to a proportional flow control valve with a coil assembly adopting a plug-in structure, belonging to the technical field of control valves. Background Art

[0002] Currently, all automotive proportional flow control valves use an electromagnetic control structure, such as the "large flow solenoid valve" for which our company has applied for Chinese patent ZL2023205132622. However, certain problems have been found in actual applications: first, the assembly efficiency is low, which affects the company's output; second, because the coil assembly and the moving iron core assembly are fixedly connected by injection molding, it is not possible to easily adjust the orientation of the plug interface. When the car company's needs are adjusted, the production line needs to be replanned for adaptation, which increases its production costs. Summary of the Invention

[0003] The purpose of the present utility model is to overcome the above-mentioned shortcomings and provide a proportional flow control valve that assembles a coil assembly and a moving iron core assembly based on an insertion method, thereby greatly improving assembly efficiency and reducing production costs.

[0004] The purpose of this utility model is achieved in this way:

[0005] A proportional flow control valve comprises a moving iron core assembly driven by a coil assembly, and a valve assembly whose opening and closing is controlled by the moving iron core assembly; a skeleton member and a pin member wound around the coil winding form an integrated coil assembly, the upper portion of the coil assembly is a plug-in connection port, and the lower portion is a plug interface connected to the center hole of the skeleton member; the moving iron core of the moving iron core assembly is slidably arranged in a magnetic isolation sleeve, and the magnetic isolation sleeve is wrapped on the pole shoe, and a push rod connected to the moving iron core passes through the moving iron core assembly to drive the valve assembly; the magnetic isolation sleeve of the moving iron core assembly is inserted upward into the center hole of the skeleton member of the coil assembly.

[0006] Preferably, the frame member and the pin member are formed into a housing by injection molding.

[0007] Preferably, a bearing is provided between the moving iron core and the magnetic isolation sleeve, and the lower portion of the magnetic isolation sleeve is sleeved on the upper portion of the pole shoe.

[0008] Preferably, the valve assembly includes a valve body, which is sleeved on the lower part of the pole shoe and tightly connected, the valve core and the spring are located in the valve body, and a spring seat is installed at the bottom of the valve body, and the spring is located between the valve core and the spring seat.

[0009] Preferably, the outer shell is mounted on the coil assembly from top to bottom and then wraps the coil assembly and the moving iron core assembly.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The present invention designs the coil assembly and the moving iron core assembly as two independent components that can be assembled independently of each other, and quickly assembles the two by using a plug-in method, thereby making the product more flexible during assembly and allowing for flexible adjustment and quick assembly according to the actual needs of the customer. Since the coil assembly and the moving iron core assembly are connected by a plug-in method, the two can be prepared independently of each other at the same time and then connected by plug-in, greatly improving work efficiency. The coil assembly and the moving iron core assembly can be safely filed. When the user's needs are adjusted, the relative angle between the coil assembly and the moving iron core assembly only needs to be rotated to match the user's desired plug-in interface angle, further improving the company's production efficiency and reducing the product's production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a structural diagram of a proportional flow control valve of the utility model.

[0013] Figure 2 It is a top view of the cushion block in the present utility model.

[0014] Figure 3 It is a structural diagram of the skeleton assembly in the utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the coil wound on the skeleton assembly in the utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the utility model after the pin parts connected to the coil winding are installed.

[0017] Figure 6 It is a structural schematic diagram of the coil assembly in the utility model.

[0018] Figure 7 It is a structural diagram of the intermediate magnetic sleeve of the utility model.

[0019] Figure 8 This is a schematic structural diagram of the moving iron core and push rod in the utility model.

[0020] Figure 9 This is a structural diagram of the moving iron core assembly of the utility model.

[0021] Figure 10 This is a structural diagram of the valve assembly in the utility model.

[0022] Figure 11 This is a schematic diagram of the assembly of the valve assembly in the present utility model.

[0023] in:

[0024] Coil assembly 1, moving iron core assembly 2, valve assembly 3, outer shell 4;

[0025] Frame member 1.1, pad 1.2, coil winding 1.3, pin member 1.4, housing 1.5, connector connection port 1.6;

[0026] Pole shoe 2.1, moving iron core 2.2, magnetic isolation sleeve 2.3, bearing 2.4, gasket 2.5, sealing ring 2.6;

[0027] Push rod 2.2.1;

[0028] Valve body 3.1, valve core 3.2, spring seat 3.3, spring 3.4. DETAILED DESCRIPTION

[0029] See also Figures 1 to 11 The utility model relates to a proportional flow control valve, comprising a moving iron core assembly 2 driven by a coil assembly 1, and a valve assembly 3 whose opening and closing is controlled by the moving iron core assembly 2;

[0030] The coil assembly 1 comprises a frame assembly formed by injection molding a frame member 1.1 and a pad 1.2 into an integral structure, such as Figure 3 As shown, the coil winding 1.3 is then wound on the skeleton assembly, as shown in FIG. Figure 4 As shown, the two pins 1.4 are then passed through the two notches on the pad 1.2 and welded to the two lead wires of the coil winding 1.3, as shown in FIG. Figure 5 As shown, the shell 1.5 is then formed by injection molding outside the skeleton assembly and the pin member 1.4, and a plug connection port 1.6 is formed on the upper part or top of the shell 1.5, so that the entire coil assembly 1 constitutes a complete integral structure, as shown Figure 6 shown.

[0031] The movable iron core assembly 2 includes a pole shoe 2.1. The movable iron core 2.2 is sheathed with a bearing 2.4 and then installed in a magnetic isolation sleeve 2.3. The movable iron core 2.2 is tightly connected with a push rod 2.2.1 so that the push rod 2.2.1 passes through the central partition of the pole shoe 2.1, and a gasket 2.5 is provided on the bottom surface of the movable iron core 2.2 facing the pole shoe 2.1. The bottom of the magnetic isolation sleeve 2.3 is sheathed on the upper part of the pole shoe 2.1 and tightly connected to form an integral structure. A ring-shaped sealing groove is provided on the outer wall of the upper part of the pole shoe 2.1 for the sealing ring 2.6 to be embedded for sealing.

[0032] After the coil assembly 1 and the moving iron core assembly 2 are assembled, the magnetic isolation sleeve 2.3 of the moving iron core assembly 2 is inserted upward into the center hole of the frame member 1.1 of the coil assembly 1 to achieve plug-in fit. Then, the outer shell 4 is put on the coil assembly 1 from top to bottom and wraps around the middle shoulder of the pole shoe 2.1 of the coil assembly 1 and the moving iron core assembly 2, as shown in FIG. Figure 9 As shown, an integrated structure is formed.

[0033] Preferably, before the above-mentioned plug-in fitting, the valve assembly 3 is assembled with the moving iron core assembly 2. At this time, the moving iron core assembly 2 is rotated 180 degrees, and the valve body 3.1 constituting the valve assembly 3 is fitted on the lower part of the pole shoe 2.1 and tightly connected, as shown in FIG. Figure 11 As shown (since the moving iron core assembly 2 has been rotated 180 degrees, the lower part of the pole shoe 2.1 is Figure 11 The upper part is shown in the figure), then install the valve core 3.2 into the valve body 3.1, then install the spring 3.4, and finally fit the spring seat 3.3 tightly into the bottom oil outlet of the valve body 3.1 (in the figure, due to 180° rotation, the bottom oil outlet is set upward).

[0034] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A proportional flow control valve comprising a moving iron core assembly (2) driven by a coil assembly (1), and a valve assembly (3) whose opening and closing is controlled by the moving iron core assembly (2); characterized in that: The frame member (1.1) and the pin member (1.4) wound around the upper coil winding (1.3) form a coil assembly (1) of an integrated structure, the upper portion of the coil assembly (1) being a plug-in connection port (1.6), and the lower portion being a plug-in port connected to the center hole of the frame member (1.1); The movable iron core (2.2) of the movable iron core assembly (2) is slidably arranged in the magnetic isolation sleeve (2.3), and the magnetic isolation sleeve (2.3) is wrapped on the pole shoe (2.1), and the push rod (2.2.1) connected to the movable iron core (2.2) passes through the movable iron core assembly (2) to drive the valve assembly (3); The magnetic isolation sleeve (2.3) of the moving iron core assembly (2) is inserted upward into the center hole of the skeleton member (1.1) of the coil assembly (1).

2. A proportional flow control valve according to claim 1, characterized in that: The skeleton part (1.1) and the pin part (1.4) are formed into a housing (1.5) by injection molding.

3. The proportional flow control valve according to claim 1, characterized in that: A bearing (2.4) is provided between the moving iron core (2.2) and the magnetic isolation sleeve (2.3), and the lower part of the magnetic isolation sleeve (2.3) is sleeved on the upper part of the pole shoe (2.1).

4. The proportional flow control valve according to claim 1, characterized in that: The valve assembly (3) includes a valve body (3.1), which is mounted on the lower part of the pole shoe (2.1) and tightly connected. The valve core (3.2) and the spring (3.4) are located in the valve body (3.1), and a spring seat (3.3) is installed at the bottom of the valve body (3.1). The spring (3.4) is located between the valve core (3.2) and the spring seat (3.3).

5. The proportional flow control valve according to claim 1, characterized in that: The outer shell (4) is mounted on the coil assembly (1) from top to bottom and then wraps around the coil assembly (1) and the moving iron core assembly (2).

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