Glue pouring sealing method for electromagnetic valve driver

Abstract

The invention discloses a glue-pouring sealing method for an electromagnetic driver. The glue-pouring sealing method comprises the following steps: S1, assembling a socket assembly; s2, assembling a socket combination body and a shell assembly body; s3, assembling a circuit board-shell cover assembly body; s4, assembling a product before glue pouring; and S5, pouring glue. According to the glue pouring method for the electromagnetic valve driver, the better sealing stability is achieved.

Description

Technical Field

[0001] This invention relates to the field of potting technology for solenoid valve actuators, and more specifically to a potting method for solenoid valve actuators. Background Technology

[0002] The existing solenoid valve actuator products use a cable clamp to tighten the cable, assemble the cable and clamp assembly into the product housing, apply adhesive around the cable to prevent the adhesive liquid from leaking out, and finally fill the housing with sealant to seal the circuit board and cable inside the housing. The main function of the cable clamp is to tighten the cable and prevent the cable from being pulled out of the sealant, which would cause the product seal to fail. Summary of the Invention

[0003] The present invention aims to overcome the technical problem that the potting method in the prior art is prone to product sealing failure, and provides a potting method for solenoid valve actuators with better sealing stability.

[0004] This invention provides a potting and sealing method for electromagnetic actuators, comprising the following steps:

[0005] S1. Socket assembly: Assemble the socket, plug, pin and socket screw into a socket assembly;

[0006] S2. Socket assembly - housing assembly assembly: Seal the housing and socket assembly with an O-ring, and install the housing and socket assembly together with socket screws to form the socket assembly - housing assembly;

[0007] S3. Circuit board-shell cover assembly: Pass the cable through the cable through the cable throughlet into the shell cover hole and solder it to the circuit board. Use circuit board screws to install the circuit board onto the outer shell cover to form the circuit board-shell cover assembly.

[0008] S4. Pre-potting product assembly: Install the circuit board-shell assembly onto the socket assembly-outer assembly using shell screws to form the pre-potting product.

[0009] S5. Glue Pouring: Perform glue potting treatment on the product before glue potting. The depth of the glue coating line is 10mm, and the curing time is 48h.

[0010] The potting and sealing method for a solenoid valve actuator described in this invention, as a preferred embodiment, involves potting the cable wrapping clamp with adhesive during the potting process.

[0011] The potting and sealing method for a solenoid valve actuator described in this invention, as a preferred embodiment, involves potting the cable without wrapping the cable clamp during the potting process.

[0012] The present invention provides a potting and sealing method for an electromagnetic valve actuator. In a preferred embodiment, the electromagnetic actuator includes a housing, a socket assembly connected to the housing, a housing cover connected to the other end of the housing, a circuit board disposed on the side of the housing cover near the housing, and a cable disposed on the other side of the housing cover.

[0013] The potting and sealing method for a solenoid valve actuator according to the present invention, in a preferred embodiment, includes a socket assembly comprising a socket, a plug and a pin connected to the socket, a socket screw for fixing the socket to the housing, and an O-ring disposed between the socket and the housing.

[0014] The present invention discloses a potting and sealing method for a solenoid valve actuator. In a preferred embodiment, the sockets are two, arranged vertically adjacent to each other. The tail of each socket is cylindrical, and the plug is inserted into the tail of the socket. The pin is a U-shaped pin. The two tails of the two sockets have through holes on both sides. The two prongs of the pin are inserted into the through holes of the tails of the two sockets, thereby assembling the sockets into one unit. The two prongs of the pin have stop portions that extend outward at their ends.

[0015] The potting and sealing method for a solenoid valve actuator according to the present invention, in a preferred embodiment, has a rectangular flange in the middle of the socket that is fixedly connected to the rear end of the housing. The socket is fixed to the rear end of the housing by means of socket screws passing through the screw holes on the rectangular flange. An O-ring is provided between the socket and the rear end of the housing.

[0016] In the potting and sealing method for a solenoid valve actuator described in this invention, the circuit board and the housing cover are preferably connected by circuit board screws.

[0017] In the potting and sealing method for a solenoid valve actuator described in this invention, as a preferred embodiment, the outer cover is connected to the outer cover by cover screws.

[0018] The present invention has the following advantages:

[0019] (1) The cable of the present invention is directly sealed by potting glue, and no glue sealing treatment is required at the cable during the potting process, which saves process costs;

[0020] (2) The potting method of the present invention provides a stable sealing form, resulting in a low probability of product failure and greater product stability. Attached Figure Description

[0021] Figure 1 This is a flowchart of a potting and sealing method for a solenoid valve actuator.

[0022] Figure 2 A schematic diagram of the structure of a solenoid valve actuator, illustrating a potting and sealing method for the actuator.

[0023] Figure 3 The pull-out curve of the cable wrapping clamp after potting in Example 1;

[0024] Figure 4 The pull-out curve of the cable without insulation clamp in Example 1 is shown.

[0025] Figure label:

[0026] 1. Outer casing; 2. Socket assembly; 21. Socket; 22. End cap; 23. Pin; 24. Socket screw; 25. O-ring; 3. Outer casing cover; 31. Outer casing cover screw; 4. Circuit board; 41. Circuit board screw; 5. Cable. Detailed Implementation

[0027] Example 1

[0028] like Figure 1 As shown, a potting and sealing method for an electromagnetic actuator includes the following steps:

[0029] S1. Assembly of socket assembly 2: Assemble socket assembly 2 by combining socket 21, plug 22, pin 23 and socket screw 24;

[0030] S2. Assembly of socket assembly-outer shell: Seal the outer shell 1 and socket assembly 2 with O-ring 25, and install the outer shell 1 and socket assembly 2 into one unit with socket screws 24 to form socket assembly-outer shell assembly.

[0031] S3. Circuit board-shell cover assembly: Pass the cable 5 through the cable hole into the shell cover hole and solder it to the circuit board 4. Use the circuit board screws 41 to install the circuit board 4 onto the outer shell cover 3 to form the circuit board-shell cover assembly.

[0032] S4. Pre-potting product assembly: Install the circuit board-shell assembly onto the socket assembly-outer assembly using the shell cover screws 31 to form the pre-potting product.

[0033] S5. Glue Pouring: Perform glue potting treatment on the product before glue potting. The depth of the glue coating line is 10mm, and the curing time is 48h.

[0034] like Figure 2As shown, the electromagnetic actuator includes a housing 1, a socket assembly 2 connected to one end of the housing 1, a housing cover 3 connected to the other end of the housing 1, a circuit board 4 disposed on the side of the housing cover 3 near the housing 1, and a cable 5 disposed on the other side of the housing cover 3. This arrangement ensures that when the housing cover 3 is installed on the housing 1, the circuit board 4 is inserted into the housing 1. The socket assembly 2 includes a socket 21, a plug 22 and a pin 23 connected to the socket 21, a socket screw 24 for fixing the socket 21 to the housing 1, and an O-ring 25 disposed between the socket 21 and the housing 1. The circuit board 4 and the housing cover 3 are connected by a circuit board screw 41. The housing cover 3 and the housing 1 are connected by a housing cover screw 31. Specifically, in this embodiment, there are two sockets 21, arranged vertically adjacent to each other. The tail of each socket 21 is cylindrical. The plug 22 is inserted into the tail of the socket 21. The pin 23 is a U-shaped pin. The two sides of the tail of the two sockets 21 have through holes. The two prongs of the pin 23 are inserted into the holes at the tail of the two sockets 21, thus combining the sockets 21 into one unit. The ends of the two prongs of the pin 23 have stop portions that extend outwards, so that the socket 21 will not fall off after the pin 23 is inserted. The middle of the socket 21 has a rectangular flange that is fixedly connected to the rear end of the outer casing 1. The socket 21 is fixed to the rear end of the outer casing 1 by socket screws 24 passing through the screw holes on the rectangular flange. An O-ring 25 is provided between the socket 21 and the rear end of the outer casing 1 to provide a seal.

[0035] Product performance testing:

[0036] The product volume is fixed, the rubber-coated wire depth is 10mm, the ambient temperature is +10℃, and the humidity is 50% RH. Figures 3-4 As shown;

[0037] (1) The average pull-out force generated when the cable wrapping clamp is potted is 327N;

[0038] (2) The average pull-out force generated when the cable is not wrapped with glue clamp is 359N.

[0039] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that any modifications, variations or equivalents that can be made without departing from the spirit and scope defined by the claims will fall within the protection scope of the present invention.

Claims

1. A potting and sealing method for an electromagnetic actuator, characterized in that: Includes the following steps: S1. Assembly of socket assembly (2): Assemble the socket assembly (2) by combining the socket (21), plug (22), pin (23) and socket screw (24); S2. Socket assembly-shell assembly assembly: The shell (1) and the socket assembly (2) are sealed with an O-ring (25), and the shell (1) and the socket assembly (2) are installed together by the socket screws (24) to form a socket assembly-shell assembly; S3. Circuit board-shell assembly assembly: Pass the cable (5) through the cable through the cable through the cable through the hole and solder it to the circuit board (4). Use circuit board screws to install the circuit board (4) on the outer shell cover (3) to form a circuit board-shell assembly. S4. Pre-potting product assembly: The circuit board-shell assembly is installed on the socket assembly-outer shell assembly by means of the shell cover screws (31) to form the pre-potting product; S5. Glue Pouring: Perform glue potting treatment on the product before glue potting, with a glue coating depth of 10mm and a curing time of 48h.

2. The potting and sealing method for a solenoid valve actuator according to claim 1, characterized in that: During the glue-filling process, the cable (5) is wrapped with glue and the clamp is filled with glue.

3. The potting and sealing method for a solenoid valve actuator according to claim 1, characterized in that: During the glue-filling process, the cable (5) is not wrapped with glue for the wire clamp.

4. A potting and sealing method for a solenoid valve actuator according to any one of claims 1 to 3, characterized in that: The electromagnetic driver includes the housing (1), a socket assembly (2) connected to one end of the housing (1), a housing cover (3) connected to the other end of the housing (1), a circuit board (4) disposed on the side of the housing cover (3) near the housing (1), and a cable (5) disposed on the other side of the housing cover.

5. The potting and sealing method for a solenoid valve actuator according to claim 4, characterized in that: The socket assembly (2) includes a socket (21), a plug (22) and a pin (23) connected to the socket (21), a socket screw (24) for fixing the socket (21) to the housing (1), and an O-ring (25) disposed between the socket (21) and the housing (1).

6. The potting and sealing method for a solenoid valve actuator according to claim 5, characterized in that: There are two sockets (21), which are arranged adjacent to each other. The tail of each socket (21) is cylindrical. The plug (22) is inserted into the tail of the socket (21). The pin (23) is a U-shaped pin. The two sides of the tail of the two sockets (21) have through holes. The two prongs of the pin (23) are inserted into the holes at the tail of the two sockets (21), so that the sockets (21) are combined into one unit. The two prongs of the pin (23) have stop portions that extend outwards.

7. The potting and sealing method for a solenoid valve actuator according to claim 6, characterized in that: The socket (21) has a rectangular flange in the middle that is fixedly connected to the rear end of the housing (1). The socket (21) is fixed to the rear end of the housing (1) by means of socket screws (24) passing through the screw holes on the rectangular flange. An O-ring (25) is provided between the socket (21) and the rear end of the housing (1).

8. The potting and sealing method for a solenoid valve actuator according to claim 4, characterized in that: The circuit board (4) and the outer casing (3) are connected by the circuit board screws (41).

9. A potting and sealing method for a solenoid valve actuator according to claim 4, characterized in that: The outer cover (3) is connected to the outer cover (1) by the cover screw (31).

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