A valve cage device

Abstract

The application discloses a valve box device, which comprises a shell and a pressure sensor, the shell comprises a first wall part, the first wall part is provided with a mounting cavity, the mounting cavity is recessed in the first wall part, part of the pressure sensor is located in the mounting cavity, the shell is further provided with a positioning structure, the positioning structure comprises a positioning block, the positioning block and the first wall part are oppositely arranged along the recess direction of the mounting cavity, and part of the pressure sensor is limited between the first wall part and the positioning block. The valve box device has relatively high assembly efficiency and relatively good assembly consistency.

Description

Technical Field

[0001] This application relates to the field of fluid control technology, specifically to a valve box device. Background Technology

[0002] The valve box device includes a housing and a pressure sensor. The housing is provided with an airflow channel and a mounting cavity. The mounting cavity and the airflow channel are connected. The pressure sensor is installed in the mounting cavity and can detect pressure changes inside the airflow channel.

[0003] After the pressure sensor is installed, the housing needs to be filled with potting compound to ensure proper positioning and assembly of the pressure sensor and other components. However, before potting, the pressure sensor is in a relatively free state. When the housing is moved between different workstations, the pressure sensor can easily detach from the mounting cavity, requiring subsequent reinstallation and affecting the assembly efficiency of the valve box assembly.

[0004] Therefore, how to provide a solution to improve the assembly efficiency of valve box devices remains a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide a valve box device that has relatively high assembly efficiency and relatively good assembly consistency.

[0006] To solve the above-mentioned technical problems, this application provides a valve box device, including a housing and a pressure sensor. The housing includes a first wall portion, and the first wall portion is provided with a mounting cavity. The mounting cavity is recessed in the first wall portion, and a portion of the pressure sensor is located in the mounting cavity. The housing is also provided with a positioning structure, and the positioning structure includes a positioning block. Along the recessed direction of the mounting cavity, the positioning block and the first wall portion are disposed opposite to each other, and a portion of the pressure sensor is limited to be located between the first wall portion and the positioning block.

[0007] Using the above scheme, after the pressure sensor is installed in the mounting cavity, the first wall can support the pressure sensor on one side of the recessed direction of the mounting cavity, while the positioning block can block or hold the pressure sensor on the side opposite to the recessed direction of the mounting cavity. Therefore, the pressure sensor is not only positioned by the cavity wall, but can also be limited along the recessed direction of the mounting cavity by the first wall and the positioning block, resulting in higher positioning reliability for the pressure sensor.

[0008] In this way, when the housing is moved between different assembly stations or subjected to external impact, the positioning block can pre-position the pressure sensor, reducing the likelihood of the pressure sensor detaching from the mounting cavity. Consequently, this reduces the need for reinstalling the pressure sensor, decreasing assembly time for the valve box assembly and improving assembly efficiency. Furthermore, because the pressure sensor's position is more stable before glue application, the filling portion formed by glue application can more accurately fix the pressure sensor in its position, improving assembly consistency and ensuring that the installation position of the pressure sensor in different batches of valve box assemblies is consistent. This is significant for ensuring product yield and reducing damage during product operation. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the connection structure between the housing and the pressure sensor in a valve box device provided in an embodiment of this application; Figure 2 for Figure 1 Schematic diagram of the middle shell structure; Figure 3 for Figure 1 A top-down view; Figure 4 for Figure 3 Schematic cross-sectional view along the AA direction; Figure 5 for Figure 3 Schematic diagram of cross-section in the BB direction; Figure 6 This is a schematic diagram of the structure of a valve box device provided in an embodiment of this application.

[0010] The annotations in the attached figures are explained as follows: 1000 Housing; 1100 First wall portion; 1110 Mounting cavity; 1120 First valve cavity; 1200 Positioning structure; 1200A First positioning structure; 1200B Second positioning structure; 1210 Positioning block; 1220 Positioning beam; 1300 Housing sidewall; 1310 First sidewall; 1320 Second sidewall; 1400 First protrusion; 1500 Second protrusion; 2000 pressure sensor; 3000 filler section. Detailed Implementation

[0011] To enable those skilled in the art to better understand the technical solutions of this application, the specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0012] Please refer to Figures 1-6 , Figure 1 This is a schematic diagram of the connection structure between the housing and the pressure sensor in a valve box device provided in an embodiment of this application; Figure 2 for Figure 1 Schematic diagram of the middle shell structure; Figure 3 for Figure 1 A top-down view; Figure 4 for Figure 3 Schematic cross-sectional view along the AA direction; Figure 5 for Figure 3 Schematic diagram of cross-section in the BB direction; Figure 6 This is a schematic diagram of the structure of a valve box device provided in an embodiment of this application.

[0013] like Figures 1-6 As shown, this application provides a valve box device that can be applied to devices that require air circuit control and pressure detection, such as air suspension systems in vehicles, and can be used to inject or discharge gas into the airbags of different air springs.

[0014] The valve box assembly includes a housing 1000 and a pressure sensor 2000. The housing 1000 is the main structure of the valve box assembly, providing a mounting base for the pressure sensor 2000, control valves (mainly solenoid valves), and other related structural components. The pressure sensor 2000 is mounted in the housing 1000 and can detect pressure changes in the corresponding airflow channels within the housing 1000, allowing for the determination or control of the valve box assembly's operating status based on the detection results.

[0015] As described in the background section, in related technologies, pressure sensors typically need to be installed into the mounting cavity of a housing before the housing is filled with adhesive to fix the pressure sensor in place. However, before the adhesive filling, the pressure sensor is not yet fixed by the adhesive and is in a relatively free state. When the housing needs to be moved between different assembly stations, or when the housing is subjected to external forces such as flipping, vibration, or handling impact, the pressure sensor is prone to detaching from the mounting cavity, requiring subsequent reinstallation. This not only affects assembly efficiency but may also affect the assembly consistency between the pressure sensor and the housing.

[0016] Based on this, in this embodiment of the application, the housing 1000 is also provided with a positioning structure 1200 that can preposition the pressure sensor 2000, so that the pressure sensor 2000 can be reliably limited before the glue is poured, thereby reducing the possibility of the pressure sensor 2000 falling out of the installation position, so as to ensure assembly efficiency and assembly consistency.

[0017] Detailed explanation, such as Figures 1-5As shown, the housing 1000 includes a first wall portion 1100, which can be understood as the bottom wall portion of the housing 1000. The first wall portion 1100 is provided with a mounting cavity 1110, which is recessed within the first wall portion 1100. That is, the mounting cavity 1110 can be a recessed structure formed from the surface of the first wall portion 1100. A portion of the pressure sensor 2000 is located within the mounting cavity 1110, allowing the pressure sensor 2000 to be initially assembled and positioned within the mounting cavity 1110.

[0018] The mounting cavity 1110 can be connected to the airflow channel in the housing 1000. The detection end of the pressure sensor 2000 is located inside the mounting cavity 1110, so that the pressure sensor 2000 can detect pressure changes in the airflow channel. The specific shape of the mounting cavity 1110 can be adapted to the shape of the detection end or mounting part of the pressure sensor 2000, thereby improving the fit stability between the pressure sensor 2000 and the housing 1000. For example, the mounting cavity 1110 can be a circular cavity, a stepped cavity, or other irregularly shaped cavity, etc., which is not limited here, as long as it can accommodate at least part of the structure of the pressure sensor 2000 and enable the pressure sensor 2000 to perform pressure detection.

[0019] like Figure 2 and Figure 4 As shown, the housing 1000 is also provided with a positioning structure 1200, which is an auxiliary positioning structure for limiting the pressure sensor 2000. The positioning structure 1200 includes a positioning block 1210. Along the concave direction of the mounting cavity 1110, the positioning block 1210 and the first wall portion 1100 are disposed opposite each other, and a portion of the pressure sensor 2000 is limited between the first wall portion 1100 and the positioning block 1210.

[0020] Using the above scheme, after the pressure sensor 2000 is installed in the mounting cavity 1110, the first wall portion 1100 can support the pressure sensor 2000 on one side of the recessed direction of the mounting cavity 1110, while the positioning block 1210 can block or hold the pressure sensor 2000 on the side opposite to the recessed direction of the mounting cavity 1110 (that is, the side opposite to the first wall portion 1100). Therefore, the pressure sensor 2000 is not only positioned by the cavity wall of the mounting cavity 1110, but can also be limited by the first wall portion 1100 and the positioning block 1210 along the recessed direction of the mounting cavity 1110, resulting in higher positioning reliability of the pressure sensor 2000.

[0021] When the housing 1000 is moved between different assembly stations or subjected to external impact, the positioning block 1210 can pre-position the pressure sensor 2000, reducing the likelihood of the pressure sensor 2000 detaching from the mounting cavity 1110. Consequently, this reduces the need for reinstalling the pressure sensor 2000, thus reducing assembly time for the valve box assembly and improving assembly efficiency. Furthermore, because the pressure sensor 2000 is more stable before glue application, the filling portion 3000 formed by glue application can more accurately fix the pressure sensor 2000 in its position, improving assembly consistency and ensuring that the installation position of the pressure sensor 2000 in different batches of valve box assemblies is consistent. This is significant for ensuring product yield and reducing damage during product operation.

[0022] In some implementations, such as Figure 2 and Figure 4 As shown, the positioning structure 1200 may further include a positioning beam 1220, which extends from the first wall portion 1100 in a recessed direction away from the mounting cavity 1110. The positioning block 1210 may be disposed on the positioning beam 1220 and protrude from the positioning beam 1220.

[0023] The positioning beam 1220 provides a supporting base for the positioning block 1210, allowing the positioning block 1210 to be held in a position opposite to the first wall portion 1100. Furthermore, the positioning beam 1220 extends the dimension of the positioning structure 1200 along the recessed direction of the mounting cavity 1110, improving the elastic deformation and elastic reset capabilities of the positioning structure 1200. During the assembly of the pressure sensor 2000, it can be inserted into the mounting cavity 1110 with the sensor facing directly towards it. The outer shell of the pressure sensor 2000 interacts with the positioning block 1210, causing the positioning beam 1220 to elastically deform, thereby eliminating installation interference between the positioning block 1210 and the pressure sensor 2000. After the pressure sensor 2000 is in place, the positioning beam 1220, through its own elastic deformation, can again drive the positioning block 1210 to reset, enabling the positioning block 1210 to effectively stop the pressure sensor 2000.

[0024] Here, the embodiments of this application do not limit the placement position of the positioning block 1210 on the positioning beam 1220. In practical applications, those skilled in the art can select the appropriate position according to specific needs, as long as it meets the requirements of use. For example, see [link to relevant documentation]. Figure 4 The positioning block 1210 can be set at one end of the positioning beam 1220 away from the first wall 1100.

[0025] In some implementations, the positioning block 1210 and the positioning beam 1220 can be integrally molded structures, and both can be integrally injection molded with the shell 1000, which simplifies the subsequent assembly process.

[0026] In addition, in some other implementations of the embodiments of this application, the positioning block 1210 and the positioning beam 1220 can also be prepared separately and then connected by welding, bonding, snap-fitting or other fixing methods, as long as the positioning block 1210 can remain fixed relative to the positioning beam 1220 and the positioning block 1210 can effectively stop the pressure sensor 2000 after installation.

[0027] In some implementations, the number of positioning structures 1200 can be at least two, and the positioning structures 1200 can be arranged at intervals.

[0028] By setting at least two positioning structures 1200, the pressure sensor 2000 can be limited from different positions, making the posture of the pressure sensor 2000 within the housing 1000 more stable. This can more effectively reduce the possibility of the pressure sensor 2000 swaying, tilting, or falling out before potting, allowing the pressure sensor 2000 to maintain a more reliable pre-installation state before potting.

[0029] In the specific design, multiple positioning structures 1200 can be arranged on different sides of the pressure sensor 2000, so that the positioning blocks 1210 of each positioning structure 1200 can respectively abut or stop with the area on different sides of the pressure sensor 2000. In this way, the reliability of the limit stop can be improved, and the uniformity of the force on the pressure sensor 2000 in the circumferential direction (the direction around the recess of the mounting cavity 1110) can be improved, so that the positioning and assembly of the pressure sensor 2000 can be more reliable.

[0030] In the implementation shown in the diagram, such as Figure 2 and Figure 4 As shown, there can be two positioning structures 1200, which can be referred to as the first positioning structure 1200A and the second positioning structure 1200B, respectively. In practical applications, the number of positioning structures 1200 can also be set to other numbers, such as more than two, or even just one.

[0031] In some implementations, such as Figure 1 and Figure 2 As shown, the housing 1000 may also include a housing sidewall 1300.

[0032] The housing sidewall 1300 may be located on the side of the first wall portion 1100 opposite to the recessed direction of the mounting cavity 1110, and the housing sidewall 1300 may be arranged around the first wall portion 1100. The housing sidewall 1300 and the first wall portion 1100 may enclose a receiving space, in which the pressure sensor 2000, positioning structure 1200, and control valve may be located at least partially, so as to be integrated and assembled through the receiving space.

[0033] In the specific design, at least one positioning structure 1200 can be connected to the shell sidewall 1300. This arrangement, by connecting the positioning structure 1200 to the shell sidewall 1300, strengthens the positioning structure 1200, making it less susceptible to damage when subjected to assembly forces or transportation vibrations from the pressure sensor 2000. This is of relatively positive significance in ensuring the reliable positioning of the pressure sensor 2000 by the positioning structure 1200.

[0034] In some implementations, such as Figures 1-3 As shown, the inner sidewall of the shell sidewall 1300 may include a first sidewall 1310 and a second sidewall 1320. The first sidewall 1310 and the second sidewall 1320 may be connected in the corner region of the shell 1000, and the transition between them may be at a right angle or at a rounded corner, which is not limited here.

[0035] Combination Figure 2 and Figure 4 The first positioning structure 1200A is connected to the first sidewall 1310, which can be a direct connection or a connection via an auxiliary structure (such as a rib) on the first sidewall 1310; this is not limited here. The second sidewall 1320 and the housing of the pressure sensor 2000 are positioned opposite each other. The second positioning structure 1200B is positioned opposite the first positioning structure 1200A, and the second positioning structure 1200B is positioned opposite the second sidewall 1320. The housing of the pressure sensor 2000 is located between the first positioning structure 1200A and the second positioning structure 1200B.

[0036] With this arrangement, the first positioning structure 1200A can limit the pressure sensor 2000 on the side near the first sidewall 1310, and the second positioning structure 1200B can limit the pressure sensor 2000 at a position opposite to the second sidewall 1320 (and the first sidewall 1310). The pressure sensor 2000 can be confined within the area defined by the first positioning structure 1200A, the second positioning structure 1200B, and the second sidewall 1320. The first positioning structure 1200A, the second positioning structure 1200B, and the second sidewall 1320 can limit the pressure sensor 2000 in three different directions, which can greatly reduce the possibility of the pressure sensor 2000 detaching from the mounting cavity 1110 or experiencing positional misalignment.

[0037] Specifically, after the second sidewall 1320 is positioned opposite to the housing of the pressure sensor 2000, it can form a boundary restriction from one side of the pressure sensor 2000. The second positioning structure 1200B can cooperate with the first positioning structure 1200A to jointly form a clamping limit on the pressure sensor 2000. In this way, the pressure sensor 2000 is not only restricted by the first wall portion 1100 and the positioning blocks 1210 of the two positioning structures 1200 in the recessed direction of the mounting cavity 1110, but also restricted by the first positioning structure 1200A, the second positioning structure 1200B, and the second sidewall 1320 in the direction perpendicular to the recessed direction of the mounting cavity 1110, thereby greatly improving the positioning reliability of the pressure sensor 2000.

[0038] like Figure 2 and Figure 4 As shown, the first positioning structure 1200A may include a positioning beam 1220 and a positioning block 1210, and the second positioning structure 1200B may also include a positioning beam 1220 and a positioning block 1210. The positioning block 1210 of the first positioning structure 1200A protrudes from the positioning beam 1220 of the first positioning structure 1200A away from the first sidewall 1310, and the positioning block 1210 of the second positioning structure 1200B protrudes from the positioning beam 1220 of the second positioning structure 1200B toward the first sidewall 1310.

[0039] In some implementations, such as Figure 2 and Figure 5 As shown, the valve box device may further include a first protrusion 1400 protruding from the first wall portion 1100, the first protrusion 1400 being located between the first positioning structure 1200A and the second side wall 1320, and the first protrusion 1400 abutting against the housing of the pressure sensor 2000.

[0040] The first protrusion 1400 can also serve as a support and limiting structure for the pressure sensor 2000, forming an abutment fit with the housing of the pressure sensor 2000 at a local position, thereby reducing the wobbling space between the pressure sensor 2000 and the first wall 1100, and enabling the pressure sensor 2000 to obtain more contact support points after installation, which can further improve the positional stability of the pressure sensor 2000 within the housing 1000.

[0041] The valve box assembly may further include a second protrusion 1500 protruding from the first wall portion 1100. The second protrusion 1500 is located between the second positioning structure 1200B and the second side wall 1320. The second protrusion 1500 may also abut against the housing of the pressure sensor 2000, with at least a portion of the pressure sensor 2000 confined between the first protrusion 1400 and the second protrusion 1500. The first protrusion 1400 and the second protrusion 1500 may abut against the housing of the pressure sensor 2000 at different positions in the circumferential direction of the pressure sensor 2000, thereby confining the pressure sensor 2000 between the first protrusion 1400 and the second protrusion 1500. This further reduces the possibility of the pressure sensor 2000 detaching or shifting position before potting, and improves the positioning reliability of the pressure sensor 2000.

[0042] The number of the first protrusion 1400 and the second protrusion 1500 can both be one, or the number of at least one of the first protrusion 1400 and the second protrusion 1500 can also be at least two, which is not limited here.

[0043] In specific manufacturing processes, at least one of the first protrusion 1400 and the second protrusion 1500 and the first wall portion 1100 can be integrally formed as a single structure. Alternatively, at least one of the first protrusion 1400 and the second protrusion 1500 can be manufactured separately and then connected to the first wall portion 1100 by welding, bonding, snap-fitting, or other fixing methods.

[0044] In some implementations, the first wall portion 1100 is further provided with a first valve chamber 1120, and the valve box device also includes a first control valve (not shown in the figure), with a portion of the core assembly of the first control valve installed in the first valve chamber 1120. The first control valve may be, for example, a solenoid valve, which can cooperate with the airflow channel within the housing 1000 to achieve airflow interruption, flow direction switching, or other air path control functions. The specific structural form of the first control valve is not the focus of improvement in the embodiments of this application, and the embodiments of this application do not limit it in this regard.

[0045] The first control valve and the second sidewall 1320 are located on opposite sides of the pressure sensor 2000. That is, the pressure sensor 2000 can be arranged between the first control valve and the second sidewall 1320. This allows for more compact use of the internal space of the housing 1000, improving the structural compactness of the valve box device provided in this embodiment. Furthermore, the first control valve also provides boundary constraints for the pressure sensor 2000. The first control valve, the second sidewall 1320, the first positioning structure 1200A, and the second positioning structure 1200B work together to limit the pressure sensor 2000 in four different directions, resulting in higher positioning reliability for the pressure sensor 2000.

[0046] In some implementations, such as Figure 6 As shown, the valve box assembly also includes a filling part 3000 for fixing the pressure sensor 2000, and the filling part 3000 fills the housing 1000.

[0047] The filler portion 3000 can be a cured structure formed after potting. The filler portion 3000 can cover or enclose at least part of the structure of the pressure sensor 2000 and can cooperate with the housing 1000 to reliably fix the pressure sensor 2000 inside the housing 1000. After the filler portion 3000 is formed, the pressure sensor 2000 can maintain a stable installation state under the action of the filler portion 3000, thereby meeting the fixation requirements during long-term use of the valve box device.

[0048] Here, the specific material of the filling part 3000 is not limited in this application embodiment, as long as it can fix the pressure sensor 2000 after filling and can meet the relevant requirements of sealing, insulation, vibration resistance or structural protection of the valve box device.

[0049] It should be understood that the positioning structure 1200 and the filling part 3000 in this embodiment of the application do not play the same role. The positioning structure 1200 is mainly used to pre-position the pressure sensor 2000 before glue dispensing, so that the pressure sensor 2000 is not easily detached from the mounting cavity 1110 during assembly and transfer; the filling part 3000 is mainly used to fix the pressure sensor 2000 after glue dispensing and curing, so that the pressure sensor 2000 remains stable during the use of the valve box device. Through the cooperation of the positioning structure 1200 and the filling part 3000, the problem of the pressure sensor 2000 being easy to detach before glue dispensing can be solved, and the reliability of the fixation of the pressure sensor 2000 after glue dispensing can be guaranteed.

Claims

1. A valve box device, characterized in that, The device includes a housing (1000) and a pressure sensor (2000). The housing (1000) includes a first wall (1100) with a mounting cavity (1110) recessed within it. A portion of the pressure sensor (2000) is located within the mounting cavity (1110). The housing (1000) also includes a positioning structure (1200) with a positioning block (1210) positioned opposite to the first wall (1100) along the recessed direction of the mounting cavity (1110). A portion of the pressure sensor (2000) is located between the first wall (1100) and the positioning block (1210). The valve box device also includes a filling part (3000) for fixing the pressure sensor (2000), the filling part (3000) filling the housing (1000).

2. The valve box device according to claim 1, characterized in that, The positioning structure (1200) further includes a positioning beam (1220) extending from the first wall portion (1100) in a recessed direction away from the mounting cavity (1110). The positioning block (1210) is disposed on the positioning beam (1220) and protrudes from the positioning beam (1220).

3. The valve box device according to claim 1, characterized in that, The number of the positioning structures (1200) is at least two, and the positioning structures (1200) are arranged at intervals.

4. The valve box device according to claim 3, characterized in that, The housing (1000) includes a housing sidewall (1300), and at least one of the positioning structures (1200) is connected to the housing sidewall (1300).

5. The valve box device according to any one of claims 1-4, characterized in that, The shell sidewall (1300) of the housing (1000) is located on the periphery of the first wall portion (1100). The inner sidewall of the shell sidewall (1300) includes a first sidewall (1310) and a second sidewall (1320) that transition at right angles or with rounded corners. The positioning structure (1200) includes a first positioning structure (1200A) and a second positioning structure (1200B). The first positioning structure (1200A) is connected to the first sidewall (1310). The second sidewall (1320) and the outer shell of the pressure sensor (2000) are disposed opposite to each other. The second positioning structure (1200B) and the second sidewall (1320) are disposed opposite to each other. The outer shell of the pressure sensor (2000) is limited between the first positioning structure (1200A) and the second positioning structure (1200B).

6. The valve box device according to claim 5, characterized in that, The positioning block (1210) of the first positioning structure (1200A) protrudes from the positioning beam (1220) of the first positioning structure (1200A) away from the first sidewall (1310), and the positioning block (1210) of the second positioning structure (1200B) protrudes from the positioning beam (1220) of the second positioning structure (1200B) toward the first sidewall (1310).

7. The valve box device according to claim 5, characterized in that, The valve box device includes a first protrusion (1400) protruding from the first wall portion (1100), the first protrusion (1400) being located between the first positioning structure (1200A) and the second side wall (1320), and the first protrusion (1400) abutting against the housing of the pressure sensor (2000).

8. The valve box device according to claim 7, characterized in that, The valve box device includes a second protrusion (1500) protruding from the first wall portion (1100), the second protrusion (1500) being located between the second positioning structure (1200B) and the second side wall (1320), the second protrusion (1500) and the housing of the pressure sensor (2000) being abutted, at least a portion of the pressure sensor (2000) being located between the first protrusion (1400) and the second protrusion (1500).

9. The valve box device according to claim 5, characterized in that, The valve box device further includes a first control valve, the first wall portion (1100) is provided with a first valve chamber (1120), a portion of the core assembly of the first control valve is installed in the first valve chamber (1120), and the first control valve and the second side wall (1320) are located on opposite sides of the pressure sensor (2000).

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