Laser welding air distribution valve structure

Abstract

The utility model relates to the technical field of air distribution valves of automobile air suspension systems, in particular to a laser welding air distribution valve structure which comprises a shell, an upper cover is arranged on the top of the shell, the shell and the upper cover are made of PA plastic and glass fiber materials, a guide column is installed at the bottom of the outer surface of the upper cover, and the guide column is connected with the upper cover. And reinforcing ribs are mounted at the bottom of the outer surface of the upper cover. Due to the fact that the shell and the upper cover are made of PA plastic and glass fiber materials, after the shell and the upper cover are attached to each other and the joint of the shell and the upper cover is welded through laser, electric insulation to the outside is guaranteed, deformation is not prone to occurring, the design temperature of the electromagnetic valve is 80 DEG C and reaches 120 DEG C in a short time, however, due to the fact that the shell is made of the PA plastic and the glass fiber materials, the electromagnetic valve is not prone to deformation. And the electromagnetic valve is a normally-closed valve, the heating amount of the electromagnetic valve is small and can be dissipated through the shell in time under the normal use working condition, and therefore the purposes that a traditional glue pouring technology is replaced, and a laser welding sealing technology is stable are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air distribution valves of automobile air suspension systems, in particular to a laser welding air distribution valve structure. Background Art

[0002] A high-quality SUV must have the comfort of a sedan and the passability of an off-road vehicle. The air suspension system is the best choice to achieve this goal. According to different road conditions and the signal of the distance sensor, the on-board computer will determine the change in vehicle height, and then control the air compressor and exhaust valve to automatically compress or extend the spring, thereby lowering or raising the ground clearance of the chassis to increase high-speed vehicle stability or passability in complex road conditions.

[0003] At present, in the existing manufacturing process of air distribution valve island, the traditional glue filling process has a long curing time, high glue cost, and unstable glue quality, which causes the device to easily deform during installation. Based on this, the utility model applies to design a laser welded air distribution valve island structure. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a laser welding air distribution valve structure, which has the advantages of replacing the traditional glue filling process and using a stable laser welding sealing process.

[0005] The utility model provides the following technical solution: a laser welded air distribution valve structure, comprising a shell, an upper cover is provided on the top of the shell, the shell and the upper cover are made of PA plastic and glass fiber material, a guide column is installed at the bottom of the outer surface of the upper cover, a reinforcing rib is installed at the bottom of the outer surface of the upper cover, five top columns are provided at the bottom of the reinforcing rib, and a waterproof and breathable membrane is provided on one side of the bottom of the outer surface of the upper cover.

[0006] As a preferred technical solution of the present invention, an air path is provided at the bottom of the inner cavity of the shell, and an electromagnetic valve and a pressure sensor are placed in the inner cavity of the shell.

[0007] As a preferred technical solution of the present invention, nine screw fixing holes are provided on the inner wall of the shell, and support plates are installed on the tops of the nine screw fixing holes.

[0008] As a preferred technical solution of the present invention, five self-tapping screws are installed on the internal threads of the support plate, and the bottoms of the five self-tapping screws are threadedly connected to the corresponding screw fixing holes.

[0009] As a preferred technical solution of the present invention, a PCB board is provided on the top of the outer surface of the support plate, and four other self-tapping screws are installed on the internal threads of the PCB board.

[0010] As a preferred technical solution of the present invention, the other four self-tapping screws are threadedly connected to the corresponding screw fixing holes.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This laser-welded air distribution valve structure uses a housing and upper cover made of PA plastic and fiberglass. After the housing and upper cover are bonded together and laser-welded at the joint, electrical insulation from the outside world is ensured, while also resisting deformation. The solenoid valve's design temperature is 80°C, reaching 120°C in a short period of time. The PA and fiberglass housing material fully meets the valve body design objectives. The solenoid valve is a normally closed valve. During normal operation, its heat generation is minimal and can be promptly dissipated through the housing. This achieves the goal of replacing the traditional glue-filling process with a stable laser welding sealing process.

[0013] 2. This laser-welded air distribution valve structure can prevent deformation after welding by setting reinforcing ribs and top columns, while providing partial pressing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the gas circuit structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the adhesive waterproof breathable membrane of the utility model.

[0018] In the figure: 1. Shell; 101. Screw fixing hole; 2. Upper cover; 21. Guide column; 22. Reinforcement rib; 23. Top column; 24. Waterproof breathable membrane; 3. PCB board; 4. Self-tapping screw; 5. Support plate; 6. Air path. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4A laser welded air distribution valve structure includes a shell 1, a top cover 2 is provided on the top of the shell 1, the shell 1 and the top cover 2 are made of PA plastic and glass fiber material, a guide column 21 is installed at the bottom of the outer surface of the top cover 2, a reinforcing rib 22 is installed at the bottom of the outer surface of the top cover 2, five top columns 23 are provided at the bottom of the reinforcing rib 22, and a waterproof and breathable membrane 24 is provided on one side of the bottom of the outer surface of the top cover 2.

[0021] See also Figure 1-2 An air path 6 is provided at the bottom of the inner cavity of the shell 1, and an electromagnetic valve and a pressure sensor are placed in the inner cavity of the shell 1.

[0022] The basic function of the distribution valve is ensured by the electromagnetic valve and pressure sensor provided inside the housing 1 in conjunction with the PCB board 3. The air tightness test of the device is performed through the air path 6.

[0023] See also Figure 1-3 The inner wall of the housing 1 is provided with nine screw holes 101, and a support plate 5 is mounted on top of the nine screw holes 101. Five self-tapping screws 4 are mounted on the internal threads of the support plate 5, and the bottoms of the five self-tapping screws 4 are threadedly connected to the corresponding screw holes 101. The PCB board 3 is mounted on the top of the outer surface of the support plate 5, and another four self-tapping screws 4 are mounted on the internal threads of the PCB board 3. The other four self-tapping screws 4 are threadedly connected to the corresponding screw holes 101.

[0024] Place the PCB board 3 on the support plate 5, solder the pins and fix it inside the housing 1 with self-tapping screws 4. The support plate 5 provides pre-tightening force for the sealing ring on the solenoid valve to ensure gas sealing and no leakage.

[0025] Working principle: When a laser welding air distribution valve structure is used, in the initial state, the solenoid valve (model: CHWANG pneumatic) and the pressure sensor (model: Honeywell FSS1500NST) are first installed in the shell 1. The second step is to place the support plate 5 on the top of the screw fixing hole 101, and fix it with five self-tapping screws 4 to provide pre-tightening force for the sealing ring on the solenoid valve to ensure that the gas seal does not leak. The third step is to place the self-tapping screw 4 on the top of the support plate 5, weld the pins and fix it on the screw fixing hole 101 with another four self-tapping screws 4, and then clamp the upper cover 2 on the top of the shell 1. Before assembly, the waterproof and breathable membrane 24 is bonded. The assembly process is limited by five top columns 23. Finally, the assembled device is fixed on the laser welding base plate, the welding parameters are adjusted, and after welding is completed, compressed air is used to ventilate from the air path 6 for airtightness detection.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding air distribution valve structure, comprising a housing (1), wherein a top cover (2) is provided on the top of the housing (1), wherein the housing (1) and the top cover (2) are made of PA plastic plus glass fiber material. Its characteristics are: A guide column (21) is installed at the bottom of the outer surface of the upper cover (2), a reinforcing rib (22) is installed at the bottom of the outer surface of the upper cover (2), five top columns (23) are provided at the bottom of the reinforcing rib (22), and a waterproof breathable membrane (24) is provided on one side of the bottom of the outer surface of the upper cover (2). After the shell and the upper cover are attached, their connection is welded by laser.

2. The laser welding air distribution valve structure according to claim 1, characterized in that: An air path (6) is provided at the bottom of the inner cavity of the shell (1), and an electromagnetic valve and a pressure sensor are placed in the inner cavity of the shell (1).

3. The laser welding air distribution valve structure according to claim 1, characterized in that: Nine screw fixing holes (101) are provided on the inner wall of the housing (1), and support plates (5) are installed on the tops of the nine screw fixing holes (101).

4. The laser welding air distribution valve structure according to claim 3, characterized in that: Five self-tapping screws (4) are installed on the internal threads of the support plate (5), and the bottoms of the five self-tapping screws (4) are threadedly connected to the corresponding screw fixing holes (101).

5. The laser welding air distribution valve structure according to claim 3, characterized in that: A PCB board (3) is provided on the top of the outer surface of the support plate (5), and four other self-tapping screws (4) are installed on the internal threads of the PCB board (3).

6. The laser welding air distribution valve structure according to claim 5, characterized in that: The other four self-tapping screws (4) are threadedly connected to the corresponding screw fixing holes (101).

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