Coil support, terminal and electromagnetic water valve assembly process

Abstract

The invention relates to the technical field of electromagnetic valves, in particular to a coil support, a terminal and an electromagnetic water valve assembling technology, the terminal is installed on a terminal installation part, the terminal comprises a main body part, a vertical part and an insertion part, the vertical part and the insertion part are located at the same end of the main body part, the insertion part is located on the inner side of the vertical part, and the vertical part is located on the inner side of the insertion part. And the terminal mounting part is provided with an avoiding gap at the outer side of the vertical part, and the projection of the avoiding gap is located at the outer side of the projection of the screw along the direction of screwing the screw. According to the device, the shape of the terminal is changed, only the insertion part is arranged at the inner side of the vertical part, a certain space is reserved at the outer side of the vertical part, and the avoiding gap is reserved for the coil bracket, so that the screw is more convenient to screw by adopting the mode of reserving the avoiding gap, and the problem of metal plate deformation caused in the riveting process of the upper coil after the screw is screwed can be reduced; and the assembling efficiency and the product quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic valves, and in particular to a coil bracket and an assembly process of an electromagnetic water valve. Background Art

[0002] The electromagnetic water valve includes an electromagnetic coil assembly and a water valve body. Figure 1 , Figure 2 Due to the unreasonable structural design of the solenoid valve terminal and the coil frame (i.e. the screws will be blocked by the coil frame), the lower base plate of the coil assembly should be installed first during assembly, and then the screws should be tightened (such as Figure 1 After the screws are tightened, the plastic-sealed coil assembly is assembled, and finally the upper base plate is installed for riveting. During the riveting process, the internal guide rod is easily damaged due to the pressure of the cylinder, and the riveting can easily cause the electrode rings inside the upper and lower base plates to be out of center, resulting in the electromagnetic force being out of center, and the water valve is prone to noise after being energized. Summary of the invention

[0003] The purpose of the present invention is to solve the problems pointed out in the background technology and to propose a coil support and a terminal.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A coil bracket and a terminal, the coil bracket having a terminal mounting portion, the terminal being mounted on the terminal mounting portion, the terminal comprising a main body portion, a vertical portion, and an insertion portion, the vertical portion and the insertion portion being located at the same end of the main body portion, the insertion portion being located on the inner side of the vertical portion, the terminal mounting portion being located on the outer side of the vertical portion and having an avoidance notch, and along the screw driving direction, the projection of the avoidance notch being located on the outer side of the screw projection.

[0006] The terminal installation portion has a slot with an open outer end, and the insertion portion is placed in the slot.

[0007] The slot has a first inner wall surface and a second inner wall surface arranged on opposite sides, the first inner wall surface has a third limiting surface near the open end, the first inner wall surface and the third limiting surface are arranged at a right angle, an obtuse angle or an acute angle, the insertion part has a first face surface and a second face surface arranged on opposite sides, the insertion part has a limiting protrusion at the root of the second face surface, the first face surface abuts against the first inner wall surface, the second face surface abuts against the second inner wall surface, and the limiting protrusion abuts against the third limiting surface.

[0008] The second inner wall surface is arranged close to the outer side of the terminal mounting portion.

[0009] The first surface has a protruding convex button, and / or the second surface has a protruding convex button.

[0010] The terminal mounting portion has a first limiting surface and a second limiting surface on its circumference, the first limiting surface and the second limiting surface are arranged at a right angle, an obtuse angle or an acute angle, and the vertical portion partially abuts against the first limiting surface and / or partially abuts against the second limiting surface.

[0011] The main body has a special-shaped hole, and at least a part of the special-shaped hole is plastic-sealed with the coil support.

[0012] The special-shaped holes include a semicircular hole and a rectangular hole which are connected to each other. The semicircular hole is at least partially exposed outside the plastic sealing member, and the rectangular hole is located inside the plastic sealing member.

[0013] An assembly process of an electromagnetic water valve, comprising the coil support and the terminal, the assembly process comprising the following steps:

[0014] s1. Arrange a coil on a coil support, insert a terminal into a slot of the coil support, and perform plastic sealing to obtain a first component;

[0015] s2. Fix the lower base plate and the first component by using a tool, install the electrode ring in the first component, and then install the upper base plate and perform riveting to form a second component;

[0016] s3. Assemble the second component and the water valve component together, and then screw them together to fix the second component and the water valve component together.

[0017] A coil bracket and terminal proposed in the present invention have the beneficial effect that: the device changes the shape of the terminal, only sets an insertion part on the inner side of the vertical part, and reserves a certain space on the outer side of the vertical part to reserve an avoidance gap for the coil bracket. The method of reserving the avoidance gap makes it more convenient to screw in the screws, and can reduce the problem of sheet metal deformation caused by riveting after the screws are screwed in and the coil is installed, thereby improving assembly efficiency and improving product quality.

[0018] The electromagnetic water valve assembly process has the beneficial effect that: through this process, not only the assembly efficiency can be improved, but also the product quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the traditional terminal and coil support;

[0020] Figure 2 This is a schematic diagram of the structure from a top view of the traditional screw driving position;

[0021] Figure 3 It is a schematic diagram of the terminal and coil support structure of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the terminal and coil support of the present invention;

[0023] Figure 5This is a schematic diagram of the structure of the terminal after plastic sealing of the present invention;

[0024] Figure 6 This is a top view structural diagram of the screw driving position of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the electromagnetic coil assembly of the present invention after assembly.

[0026] In the figure: coil bracket 1, terminal mounting part 2, avoidance gap 3, slot 4, first limiting surface 5, second limiting surface 6, terminal 7, main body 8, special-shaped hole 9, vertical part 10, insertion part 11, protrusion 12, first face part 13, second face part 14, first inner wall surface 15, second inner wall surface 16, third limiting surface 17, limiting protrusion 18. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 3-Figure 6 A coil bracket and a terminal, the coil bracket 1 has a terminal mounting portion 2, the terminal 7 is mounted on the terminal mounting portion 2, the terminal 7 includes a main body 8, a vertical portion 10, and an insertion portion 11, the vertical portion 10 and the insertion portion 11 are located at the same end of the main body 8, the insertion portion 11 is located on the inner side of the vertical portion 10, the terminal mounting portion 2 is located on the outer side of the vertical portion 10 and has an avoidance gap 3, along the screw driving direction, the projection of the avoidance gap 3 is located on the outer side of the screw projection.

[0029] The device changes the shape of the terminal 7, and only sets the insertion portion 11 inside the vertical portion 10, and reserves a certain space outside the vertical portion 10 to reserve a gap 3 for the coil support 1. Figure 6 The method of reserving the avoidance gap 3 makes it more convenient to screw in the screws, and can reduce the problem of sheet metal deformation caused by riveting the upper bottom plate after screwing in, thereby improving assembly efficiency and product quality.

[0030] An assembly process of an electromagnetic water valve, comprising the coil support and the terminal, the assembly process comprising the following steps:

[0031] s1. Arrange a coil on a coil support, insert a terminal into a slot of the coil support, and perform plastic sealing to obtain a first component;

[0032] s2. Fix the lower base plate and the first component by using a tool, install the electrode ring in the first component, and then install the upper base plate and perform riveting to form a second component;

[0033] s3. Assemble the second component and the water valve component together, and then screw them together to fix the second component and the water valve component together.

[0034] When the device is used to assemble the electromagnetic water valve, the upper base plate, the lower base plate, the electrode ring, and the plastic-sealed coil can be assembled to form an electromagnetic coil assembly. Figure 7 In the state shown, the assembled electromagnetic coil assembly is then installed on the water valve body, and then the screws can be tightened. In this way, when riveting the upper and lower base plates, the lower base plate can be fixed first, and then riveting can be performed. This can avoid the problem of eccentricity of the electrode ring, and because the electromagnetic coil assembly is assembled into a whole first, the guide rod can be well avoided from being damaged when the electromagnetic coil assembly is connected to the water valve body, thereby effectively improving product quality.

[0035] As an assembly method, the terminal mounting portion 2 has a slot 4 with an open outer end, and the insertion portion 11 is placed in the slot 4. The terminal 7 is inserted into the terminal mounting portion 2 by plugging, which is convenient for subsequent plastic sealing.

[0036] As an embodiment, the slot 4 has a first inner wall surface 15 and a second inner wall surface 16 arranged on opposite sides, the first inner wall surface 15 has a third limiting surface 17 near the open end, the first inner wall surface 15 and the third limiting surface 17 are arranged at a right angle, an obtuse angle or an acute angle, the insertion part 11 has a first face part 13 and a second face part 14 arranged on opposite sides, the insertion part 11 has a limiting protrusion 18 at the root of the second face part 14, the first face part 13 abuts against the first inner wall surface 15, the second face part 14 abuts against the second inner wall surface 16, and the limiting protrusion 18 abuts against the third limiting surface 17, the first inner wall surface 15 and the second inner wall surface 16 guide the installation of the insertion part 11, which facilitates the assembly of the terminal 7 on the coil bracket 1, and the insertion depth of the terminal 7 is controlled by the third limiting surface 17 and the limiting protrusion 18.

[0037] The second inner wall surface 16 is arranged close to the outer side of the terminal mounting portion 2 , and is arranged inside the first inner wall surface 15 and the third limiting surface 17 , so as to reserve enough reserved space for avoiding the notch 3 .

[0038] The first face portion 13 has a protruding convex buckle 12, and / or the second face portion 14 has a protruding convex buckle 12. The convex buckle 12 is provided, and when the insertion portion 11 is inserted into the terminal mounting portion 2, the convex buckle 12 and the destructive deformation of the wall of the slot 4 are utilized to stably fix one end of the terminal 7 inside the terminal mounting portion 2.

[0039] refer to Figure 3The terminal mounting portion 2 has a first limiting surface 5 and a second limiting surface 6 on its circumferential side. The first limiting surface 5 and the second limiting surface 6 are arranged at a right angle, an obtuse angle or an acute angle. The vertical portion 10 partially abuts against the first limiting surface 5 and / or partially abuts against the second limiting surface 6. The second limiting surface 6 is used to limit the insertion depth of the terminal, and the first limiting surface 5 is used to guide and limit the vertical portion 10.

[0040] The main body 8 has a special-shaped hole 9, which is at least partially sealed with the coil support. The special-shaped hole is convenient for injecting plastic into the terminal, increasing the bonding force between the terminal and the entire coil after plastic sealing, and improving the overall pulling force of the terminal in different directions.

[0041] As an implementation manner, the special-shaped hole 9 includes a semicircular hole and a rectangular hole which are connected to each other. The semicircular hole is at least partially exposed outside the plastic package, and the rectangular hole is located inside the plastic package.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and inventive concept of the present invention by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A coil support and a terminal, wherein the coil support (1) has a terminal mounting portion (2), the terminal (7) is mounted on the terminal mounting portion (2), and the coil support (1) has a terminal mounting portion (2), and the terminal (7) is mounted on the terminal mounting portion (2), wherein: The terminal (7) comprises a main body (8), a vertical portion (10), and an insertion portion (11); the vertical portion (10) and the insertion portion (11) are located at the same end of the main body (8); the insertion portion (11) is located on the inner side of the vertical portion (10); the terminal mounting portion (2) is located on the outer side of the vertical portion (10) and has an avoidance notch (3); along the screw driving direction, the projection of the avoidance notch (3) is located on the outer side of the screw projection.

2. A coil support and terminal according to claim 1, characterized in that: The terminal mounting portion (2) has a slot (4) with an open outer end, and the insertion portion (11) is placed in the slot (4).

3. A coil support and terminal according to claim 2, characterized in that: The slot (4) has a first inner wall surface (15) and a second inner wall surface (16) arranged on opposite sides; the first inner wall surface (15) has a third limiting surface (17) near the open end; the first inner wall surface (15) and the third limiting surface (17) are arranged at a right angle, an obtuse angle or an acute angle; the insertion portion (11) has a first face portion (13) and a second face portion (14) arranged on opposite sides; the insertion portion (11) has a limiting protrusion (18) at the root of the second face portion (14); the first face portion (13) abuts against the first inner wall surface (15), the second face portion (14) abuts against the second inner wall surface (16), and the limiting protrusion (18) abuts against the third limiting surface (17).

4. A coil support and terminal according to claim 3, characterized in that: The second inner wall surface (16) is arranged close to the outer side of the terminal mounting portion (2).

5. A coil support and terminal according to claim 3, characterized in that: The first surface (13) has a protruding convex button (12), and / or the second surface (14) has a protruding convex button (12).

6. A coil support and terminal according to any one of claims 1 to 5, characterized in that: The terminal mounting portion (2) has a first limiting surface (5) and a second limiting surface (6) on its circumferential side, the first limiting surface (5) and the second limiting surface (6) being arranged at a right angle, an obtuse angle or an acute angle, and the vertical portion (10) partially abuts against the first limiting surface (5) and / or partially abuts against the second limiting surface (6).

7. A coil support and terminal according to any one of claims 1 to 5, characterized in that: The main body (8) has a special-shaped hole (9), and the special-shaped hole (9) is at least partially plastic-sealed with the coil support.

8. A coil support and terminal according to claim 7, characterized in that: The special-shaped hole (9) comprises a semicircular hole and a rectangular hole which are connected to each other, wherein at least part of the semicircular hole is exposed outside the plastic sealing member, and the rectangular hole is located inside the plastic sealing member.

9. A solenoid water valve assembly process, characterized in that: The coil support and terminal according to any one of claims 1 to 8 are included, and the assembly process includes the following steps: s1. Arrange a coil on a coil support (1), insert a terminal (7) into a slot (4) of the coil support (1), and perform plastic sealing to obtain a first assembly; s2. Fix the lower base plate and the first component by using a tool, install the electrode ring in the first component, and then install the upper base plate and perform riveting to form a second component; s3. Assemble the second component and the water valve component together, and then screw them together to fix the second component and the water valve component together.

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