Electromagnetic valve module

Abstract

The utility model discloses an electromagnetic valve module, which comprises a control mainboard and a plurality of groups of electromagnetic valves, and is characterized in that each group of electromagnetic valves is provided with a circuit substrate, the circuit substrate is provided with an air pressure sensor for detecting the air pressure of the electromagnetic valves, and the electromagnetic valves are electrically connected with the circuit substrate through pins. The control mainboard is provided with a connecting interface, and the circuit substrate is detachably and electrically connected with the connecting interface through a flexible flat cable. The electromagnetic valve module provided by the utility model is connected to the control main board through the flexible flat cable, and when the electromagnetic valve is damaged, the electromagnetic valve can be conveniently detached from the control main board, so that the maintainability of equipment is enhanced, and the space utilization rate of the control main board and the flexibility of system design are improved.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, specifically to a solenoid valve module with an integrated air pressure sensor. Background Technology

[0002] With the development of technology, adaptive seating products are becoming increasingly common, and solenoid valve components are being used more and more extensively in these products. However, the airtightness of solenoid valves has always been a challenging problem in the production and after-sales service of these products. Traditionally, solenoid valve components are directly soldered onto the control board, and the pressure sensor is also mounted on the control board. Due to sealing requirements, the sensor must be sealed to the solenoid valve to detect changes in internal pressure, but this design has many drawbacks.

[0003] On the one hand, when foreign matter or impurities enter the solenoid valve, it increases the risk of air leakage, leading to poor airtightness. Once poor airtightness occurs and repair is needed, the solenoid valve pins on the control board must be desoldered. Desoldering is a difficult operation, and even a slight mistake can cause irreversible damage to the control board. Even with careful operation, the probability of the control board being scrapped is high, which undoubtedly results in a huge waste of resources and increased costs. On the other hand, in traditional methods, the connection between the solenoid valve module and other components is not flexible enough and is greatly limited by the space layout of the control board. This causes many inconveniences for operators during production assembly and subsequent maintenance, seriously affecting production efficiency and after-sales maintenance efficiency.

[0004] Therefore, developing an easy-to-maintain solenoid valve module has become a technical problem that the industry urgently needs to solve. Utility Model Content

[0005] In view of the above-mentioned shortcomings of current solenoid valves, this utility model provides a solenoid valve module that integrates a pressure sensor and is connected to the control motherboard via a flexible flat cable, thereby solving the equipment maintenance problem when the solenoid valve leaks.

[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0007] An electromagnetic valve module includes a control motherboard and multiple sets of electromagnetic valves. Each set of electromagnetic valves is provided with a circuit board. The circuit board is provided with a pressure sensor for detecting the air pressure of the electromagnetic valve. The electromagnetic valves are electrically connected to the circuit board through pins. The control motherboard is provided with a connection interface. The circuit board is detachably electrically connected to the connection interface through a flexible flat cable.

[0008] Through the above technical solutions, the solenoid valve module of this utility model is connected to the control motherboard via a flexible flat cable. When the solenoid valve is damaged, it is easy to disassemble from the control motherboard, thereby enhancing the maintainability of the equipment and improving the space utilization of the control motherboard and the flexibility of system design.

[0009] According to one aspect of the present invention, the circuit board is fixed to the solenoid valve by fasteners.

[0010] According to one aspect of this utility model, the fastener is a screw.

[0011] According to one aspect of the present invention, the screws are distributed symmetrically at the edges of the circuit board.

[0012] According to one aspect of the present invention, the circuit board is provided with a connection port, and the flexible flat cable is plugged in through the connection port.

[0013] According to one aspect of this utility model, the connector is designed to prevent mis-insertion, including an asymmetrical snap-fit ​​structure and a guide groove.

[0014] According to one aspect of this utility model, the flexible flat cable is a flexible flat cable with an outer layer covered with insulating material.

[0015] According to one aspect of the present invention, a signal processing circuit is integrated on the circuit board for converting the analog signal detected by the barometric pressure sensor into a digital signal and transmitting it to the control motherboard via the flexible flat cable.

[0016] According to one aspect of the present invention, the pins of the solenoid valve include a control signal pin, a power supply pin, and a ground pin.

[0017] According to one aspect of the present invention, the control motherboard is provided with a connector for electrical connection and data transmission.

[0018] The advantages of this invention are as follows: First, when a solenoid valve malfunctions, unlike traditional methods that require unsoldering the solenoid valve pins, simply disconnecting the corresponding flexible cable on the control board allows for easy replacement of the solenoid valve. This significantly reduces the risk of damaging the control board and thus greatly improves the maintainability of the equipment. Second, separating the pressure sensor related to the solenoid valve function from the control board and integrating it into the circuit board allows for more efficient use of the control board's space, providing more possibilities for the layout of other electronic components. Third, the solenoid valve module with integrated pressure sensor can be arbitrarily arranged in the equipment according to actual needs, without being strictly limited by the space of the control board, thus improving the flexibility of the entire system design. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an electromagnetic valve module according to the present invention;

[0021] Figure 2 This is a top view of an electromagnetic valve module according to the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 and Figure 2 As shown, a solenoid valve module 100 includes a control main board 1 and multiple solenoid valves 4. Each solenoid valve 4 is provided with a circuit board 3. The circuit board 3 is provided with a pressure sensor (not shown in the figure) for detecting the air pressure of the solenoid valve. The solenoid valve 4 is electrically connected to the circuit board 3 through pins (not shown in the figure). At the same time, the control main board 1 is provided with a connection interface 7. The circuit board 3 is detachably electrically connected to the connection interface 7 through a flexible flat cable 2.

[0024] In this design, a pressure sensor and solenoid valve 4 are sealed and work in close cooperation to control the air pressure inside the seat airbag. The pressure sensor detects the air pressure inside the airbag in real time and transmits the collected pressure signal to the control board 1 via a flexible cable 2. The controller on the control board 1 analyzes the received pressure signal, compares it with a preset value, and drives the solenoid valve 4 to operate. Simultaneously, the solenoid valve 4 can precisely control the gas flow according to the controller's instructions, cutting off the gas passage when necessary and precisely adjusting the gas flow rate according to actual needs. For example, when the air pressure inside the seat airbag is lower than the set value, the control board 1 sends a command to the solenoid valve 4 based on the signal from the pressure sensor. The solenoid valve 4 opens the gas flow channel, allowing an appropriate amount of gas to flow into the airbag; when the air pressure reaches the set value, the solenoid valve 4 cuts off the gas flow to prevent excessive pressure. Through precise control, the air pressure in the seat airbag is always maintained within a suitable range, providing the user with a comfortable and stable adaptive seating experience.

[0025] The circuit board 3 is fixed to the solenoid valve 4 by fasteners. Conventional fasteners include bolts, studs, screws (including self-tapping screws), and nuts, which can be selected as needed. In this embodiment, the fasteners are screws 5, which are distributed symmetrically on the edge of the circuit board 3 for better fixing.

[0026] To connect the flexible flat cable 2 and the circuit board 3, a connector (not shown in the figure) is provided on the circuit board 3, and the flexible flat cable 2 is plugged in through the connector. Thus, during use, the solenoid valve assembly is connected to the control main board 1 via the flexible flat cable 2. When a solenoid valve is damaged, it can be removed from the control main board 1 via the flexible flat cable 2, facilitating equipment maintenance and solenoid valve replacement.

[0027] Furthermore, for ease of use, in this embodiment, the connector is designed to prevent mis-insertion, which includes an asymmetrical snap-fit ​​structure and a guide groove.

[0028] When inserting the flexible flat cable 2, the plug of the flexible flat cable 2 must first be aligned with the connector on the circuit board 3. Due to the guide groove, the plug can only be inserted in a specific direction, avoiding damage caused by incorrect insertion. When the plug is inserted, the asymmetrical locking structure begins to function. The locking part of the plug will cooperate with the corresponding slot on the connector. Only in the correct direction can the locking mechanism smoothly engage with the slot. As the plug is inserted deeper, the locking mechanism will gradually lock tightly into the slot, producing a "click" sound, indicating that the flexible flat cable has been correctly inserted and locked. At this point, the flexible flat cable and the connector on the circuit board 3 are firmly connected, ensuring the stability and reliability of the electrical connection.

[0029] When removing the flexible flat cable 2, the asymmetrical latch structure must first be released. Generally, this requires pressing or flicking the unlocking device corresponding to the latch to disengage it from the slot. After releasing the lock, smoothly pull out the flexible flat cable 2 along the direction of the guide groove. The guide groove provides clear directional guidance during the removal process, preventing damage to the connector and flexible flat cable 2 due to uneven force or incorrect direction.

[0030] Flexible flat cable 2 is an electronic connection component that achieves dynamic bending through a flexible substrate. Its structure and material design must take into account flexibility, conductivity, durability and space adaptability.

[0031] Structurally, the flexible flat cable 2 comprises a conductor layer, an insulation layer, a cover layer, and connector interfaces. The conductor layer is the core component for signal transmission in the flexible flat cable 2, consisting of multiple parallel, fine metal wires. These wires are typically formed on an insulating substrate using an etching process, and are insulated from each other to ensure the accuracy and independence of signal transmission. The insulation layer surrounds the conductor layer, isolating the wires and preventing short circuits. The cover layer covers the insulation layer, providing further protection for the conductor layer and the insulation layer. Connector interfaces are located at both ends of the flexible flat cable and are used to connect to the connection ports 8 of the circuit board 3 and the connection ports 7 of the control motherboard 1.

[0032] It is understood that the circuit board 3 integrates a signal processing circuit, which is used to convert the analog signal detected by the barometric pressure sensor into a digital signal, and to perform filtering and amplification on the signal, and transmit the signal to the control board 1 through the flexible flat cable 2.

[0033] In adaptive seat products, the solenoid valve 4 is a key component, primarily used to control gas pressure. The solenoid valve 4 has an air nozzle 6, which is used to inflate and deflate the air to ensure the normal operation and functionality of the product. In conjunction with a pressure sensor, the solenoid valve 4 can precisely control the flow, cut-off, and volume of gas. This function is particularly crucial in adaptive seat systems. For example, when the seat needs to adjust its firmness, height, or shape, the solenoid valve can precisely regulate the amount of gas entering the seat airbag according to system instructions. By opening, closing, or adjusting the valve opening, precise control of the airbag pressure is achieved, thereby providing a comfortable experience for the user.

[0034] In the solenoid valve module 100 with integrated barometric pressure sensor, the pins of the solenoid valve 4 are soldered to the pad holes of the circuit board 3. The pins of the solenoid valve 4 include control signal pins, power supply pins, and ground pins. The control signal pin is the interface for the solenoid valve module 100 to receive external control commands; external devices (such as the microcontroller on the control motherboard) transmit control signals to this pin via a flexible flat cable. The power supply pin provides the electrical energy required for the solenoid valve to operate and is connected to an external power source. The ground pin primarily serves a safety and circuit stabilization function.

[0035] In this design, the control motherboard 1 is equipped with a connector 9, so that external devices can be electrically connected and transmit data with the solenoid valve module 100 of this design through the connector 9.

[0036] The advantages of this invention are as follows: First, when a solenoid valve malfunctions, unlike traditional methods that require unsoldering the solenoid valve pins, simply disconnecting the corresponding flexible cable on the motherboard allows for easy replacement of the solenoid valve, significantly reducing the risk of damage to the motherboard and thus greatly improving the maintainability of the equipment. Second, separating the pressure sensor related to the solenoid valve function from the motherboard and integrating it into the circuit board allows for more efficient use of the control motherboard space, providing more possibilities for the layout of other electronic components. Third, the solenoid valve module with integrated pressure sensor can be arbitrarily arranged in the equipment according to actual needs, without being strictly limited by motherboard space, improving the flexibility of the entire system design. In summary, the solenoid valve module of this invention effectively solves the equipment maintenance problem of solenoid valves and provides flexibility in system design, making it valuable for industrial applications.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A solenoid valve module, comprising a control main board (1) and multiple sets of solenoid valves (4), characterized in that, Each set of solenoid valves (4) is provided with a circuit board (3). The circuit board (3) is provided with a pressure sensor for detecting the air pressure of the solenoid valve. The solenoid valve (4) is electrically connected to the circuit board (3) through pins. The control main board (1) is provided with a connection interface. The circuit board (3) is detachably electrically connected to the connection interface (7) through a flexible flat cable (2).

2. The solenoid valve module according to claim 1, characterized in that, The circuit board (3) is fixed to the solenoid valve (4) by fasteners.

3. The solenoid valve module according to claim 2, characterized in that, The fastener is a screw (5).

4. The solenoid valve module according to claim 3, characterized in that, The screws (5) are distributed symmetrically at the edge of the circuit board (3).

5. The solenoid valve module according to claim 1, characterized in that, The circuit board (3) is provided with a connection port (8), and the flexible flat cable (2) is plugged in through the connection port (8).

6. The solenoid valve module according to claim 5, characterized in that, The connector is designed to prevent mis-insertion, and includes an asymmetrical snap-fit ​​structure and a guide groove.

7. The solenoid valve module according to claim 1, characterized in that, The flexible flat cable (2) is a flexible flat cable with an outer layer covered with insulating material.

8. The solenoid valve module according to claim 1, characterized in that, The circuit board (3) integrates a signal processing circuit for converting the analog signal detected by the air pressure sensor into a digital signal and transmitting it to the control motherboard (1) through the flexible flat cable (2).

9. The solenoid valve module according to claim 1, characterized in that, The solenoid valve (4) has a control signal pin, a power supply pin, and a ground pin.

10. The solenoid valve module according to any one of claims 1 to 9, characterized in that, The control motherboard (1) is provided with a connector (9) for electrical connection and data transmission.

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