A sealed connection structure, liquid source assembly and decontamination device

Abstract

The application provides a sealing connection structure, a liquid source assembly and a decontamination device, and relates to the technical field of decontamination. The sealing connection structure comprises an elastic sealing element and a pressing part. The elastic sealing element is arranged in a connecting hole for connecting two adjacent chambers. The elastic sealing element has a hollow channel. The pressing part has an internal channel for connecting the two chambers. The pressing part is arranged in the hollow channel. The pressing part is configured to press the elastic sealing element to deform so that the elastic sealing element is interference-fitted in the connecting hole. In the application, the elastic sealing element is pressed in the connecting hole, which can avoid the elastic sealing element from moving and deforming, thereby improving the sealing effect and reliability.

Description

Technical Field

[0001] This application relates to the field of decontamination technology, and in particular to a sealing connection structure, a liquid source assembly, and a decontamination device. Background Technology

[0002] A liquid source assembly can generate a liquid flow and clean dirt. It can be used in vehicles to clean onboard sensors (cameras, LiDAR, etc.) to ensure their proper functioning. A liquid source assembly typically includes a pump chamber to house the liquid pump and its related components, and a control chamber to control the pump's operation. The pump chamber and control chamber need to be isolated from each other, and wiring must be routed between them.

[0003] To prevent disruption to the normal operation of the pump or interference with the control chamber's normal control function, it is necessary to ensure a seal between the pump chamber and the control chamber, in addition to guaranteeing the individual seals of each chamber. Related technologies often employ a single sealing ring or potting compound to achieve this seal, but the sealing effect is limited and easily affected by factors such as high and low temperature changes and vibration, resulting in insufficient sealing reliability. Utility Model Content

[0004] This application provides a sealing connection structure, a liquid source assembly, and a decontamination device, which can achieve sealed communication between two chambers and improve the sealing effect and sealing reliability.

[0005] The first aspect of this application provides a sealed connection structure, comprising:

[0006] An elastic seal is disposed in a connecting hole for connecting two adjacent chambers, the elastic seal having a through hollow channel;

[0007] And a compression section having an internal channel connecting two chambers, the compression section being disposed within the hollow channel, the compression section being configured to compress the elastic seal to deform so that the elastic seal is interference-fitted within the connecting hole.

[0008] In one possible implementation, at least one end of the extrusion portion extends out of the hollow channel.

[0009] In one possible implementation, the extrusion section has a columnar structure.

[0010] In one possible implementation, the connecting hole has a first axial dimension along its axial direction, the resilient seal has a second axial dimension, and the compression portion has a third axial dimension, wherein the first axial dimension, the second axial dimension, and the third axial dimension increase sequentially.

[0011] In one possible implementation, the inner wall surface of the connecting hole is provided with a first flange;

[0012] And / or, the outer wall surface of the resilient seal is provided with a first flange.

[0013] In one possible implementation, the inner wall surface of the resilient seal is provided with a second flange;

[0014] And / or, the outer wall surface of the extrusion part is provided with a second flange.

[0015] In one possible implementation, the resilient seal includes a sealing body and a limiting flange extending outward from the outer wall surface of the sealing body, the sealing body being disposed within the connection hole, and the limiting flange abutting against the outer edge surface of the connection hole.

[0016] In one possible implementation, a hook is provided at the end of the sealing body away from the limiting flange, the hook extending outward from the outer wall surface of the sealing body;

[0017] The outer wall surface of the hook is constructed as an inclined surface.

[0018] A second aspect of this application provides a liquid source assembly, comprising:

[0019] The first housing has a liquid pump chamber;

[0020] The second housing has a control cavity;

[0021] A liquid pump is disposed in the liquid pump chamber;

[0022] A circuit board is disposed in the control cavity;

[0023] A wiring harness connects the liquid pump and the circuit board;

[0024] And the sealing connection structure described in the first aspect, wherein the extrusion part of the sealing connection structure is connected to one of the first housing and the second housing, the other of the first housing and the second housing is provided with a connection hole, the elastic seal of the sealing connection structure is disposed in the connection hole, and the extrusion part is disposed in the hollow channel of the elastic seal.

[0025] In one possible implementation, one of the first housing and the second housing is integrally formed with the extrusion portion.

[0026] A third aspect of this application provides a liquid source assembly, comprising:

[0027] The third housing has a pump chamber and a control chamber separated by a partition;

[0028] A liquid pump is disposed in the liquid pump chamber;

[0029] A circuit board is disposed in the control cavity;

[0030] A wiring harness connects the liquid pump and the circuit board;

[0031] And the sealing connection structure described in the first aspect, wherein the partition plate has a connection hole, the elastic sealing element in the sealing connection structure is disposed in the connection hole, and the extrusion part in the sealing connection structure is disposed in the hollow channel of the elastic sealing element.

[0032] A fourth aspect of this application provides a decontamination device, including the aforementioned liquid source assembly.

[0033] The following beneficial effects will be obtained by implementing the embodiments of this application:

[0034] Based on the sealing connection structure, liquid source assembly, and cleaning device in the above embodiments, the elastic seal is located between the hole wall of the connecting hole and the extrusion part. Because the extrusion part can compress the elastic seal, it can be interference-fitted between the hole wall of the connecting hole and the extrusion part. Furthermore, because the extrusion part has an internal channel, a sealed connection between the two chambers is achieved. Since the elastic seal is compressed within the connecting hole, it avoids adverse consequences such as movement or deformation, thereby improving the sealing effect and reliability. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0036] Figure 1 A schematic diagram of a decontamination device provided according to an embodiment of this application is shown;

[0037] Figure 2 It shows Figure 1 A cross-sectional view along the AA direction;

[0038] Figure 3 It shows Figure 2 A magnified view of part B in the diagram;

[0039] Figure 4 It shows Figure 1 A cross-sectional view along the CC direction.

[0040] Figure label:

[0041] 100 - First housing; 101 - Pump chamber; 102 - Liquid outlet;

[0042] 200 - Second housing; 201 - Control cavity; 202 - Connection hole; 203 - First surface;

[0043] 300-Liquid Pump;

[0044] 400 - Circuit Board;

[0045] 500-Wire Harness;

[0046] 600 - Sealing connection structure; 610 - Elastic seal; 620 - Extrusion part; 611 - Hollow channel; 612 - First flange; 613 - Second flange; 614 - Sealing body; 615 - Limiting flange; 616 - Hook; 621 - Internal channel; 6161 - Inclined surface;

[0047] 10 - Air source assembly; 11 - Air source assembly housing;

[0048] 20 - Liquid source assembly; 21 - Liquid supply source.

[0049] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] With the development of modern intelligent and digital technologies, modern vehicle technology has also made great strides. For example, a certain number of onboard sensors such as cameras or lidar are installed on the vehicle body, enabling the vehicle to identify the surrounding road conditions in order to achieve the purposes of obstacle avoidance, driving guidance and improving driving safety.

[0052] The aforementioned cameras or lidar are susceptible to weather conditions. For example, when vehicles are driving in fog, dust, rain, or snow, the surface of the cameras or lidar may become covered with dirt. To maintain the basic performance of the cameras or lidar, it is necessary to perform a cleaning operation to prevent the dirt adhering to the cameras or lidar from affecting the clarity of the monitoring images.

[0053] In related technologies, efficient decontamination operations can be achieved by using gas decontamination methods, liquid decontamination methods, or gas-liquid two-phase decontamination methods that combine gas and liquid. Such decontamination devices can clean various types of dirt by spraying airflow and / or liquid flow onto the dirt.

[0054] The liquid source assembly is a crucial structure for implementing both liquid and two-phase gas-liquid decontamination methods. It generates a liquid flow to clean onboard sensors, ensuring their proper functioning. A liquid source assembly typically includes a housing, a liquid pump and related components, and a circuit board. The housing is usually designed to house both the pump chamber and the control chamber, which house the circuit board. These two chambers must be isolated from each other, and wiring must be routed between them. For example, one end of a wiring harness needs to be connected to the circuit board, and the other end needs to extend into the pump chamber and connect to the pump.

[0055] Fluid supply assemblies are typically installed in humid environments, and moisture entering the pump or control chamber can affect their normal operation. Therefore, to prevent interference with the pump's operation or the control chamber's function, a seal between the pump and control chambers is necessary, in addition to ensuring their individual sealing. For the pump or control chambers themselves, a sealed cavity structure suffices. However, for the connection between the pump and control chambers, common technologies use a single sealing ring or potting compound. For example, a wiring hole is created at the connection point, through which the wiring harness passes, and the sealing ring or potting compound surrounds the harness. This sealing method has limited effectiveness and is susceptible to temperature changes and vibration, resulting in insufficient sealing reliability. Specifically, temperature changes cause the sealing ring to expand and contract, potentially leading to seal failure. Frequent vehicle vibrations can also cause the wiring harness to vibrate, transmitting this vibration to the sealing ring or potting compound, potentially causing movement and seal failure.

[0056] Based on the above-mentioned situation and problems, this application provides a sealed connection structure that can achieve sealed communication between two chambers. When used in a liquid source assembly, the liquid source assembly enables a sealed communication between the liquid pump chamber and the control chamber, while allowing the wire harness to pass through the wire hole, thereby achieving the purpose of isolating water vapor. The liquid source assembly has excellent sealing performance and high sealing reliability.

[0057] To achieve the above objectives, the main design concept of the sealing connection structure in this application embodiment is to configure an elastic seal at the connection position between the two chambers. At the same time, through the design of related structures, the elastic seal can be interference-fitted at the connection position, thereby avoiding adverse consequences such as movement or deformation of the elastic seal, thus improving the sealing effect and sealing reliability.

[0058] Based on the above-described sealing connection structure, this application embodiment also provides a liquid source assembly, which may include the above-described sealing connection structure, so that the liquid source assembly has excellent sealing performance and sealing reliability.

[0059] As can be seen from the following embodiments, the sealing connection structure can be integrated into the housing of the liquid source assembly. For example, when the liquid source assembly includes a first housing and a second housing, with the first housing forming a pump chamber and the second housing forming a control chamber, some structures in the sealing connection structure can be integrated into the first housing and / or the second housing. When the liquid source assembly includes a single housing, for example, when the liquid source assembly includes a third housing, the sealing connection structure can also be designed separately and installed onto the third housing through subsequent assembly means.

[0060] In addition, this application embodiment also provides a decontamination device, which can be a gas-liquid two-phase decontamination device including a liquid source assembly and a gas source assembly.

[0061] Figure 1 A schematic diagram of a decontamination device provided according to an embodiment of this application is shown; Figure 2 It shows Figure 1 A cross-sectional view along the AA direction; Figure 3 It shows Figure 2 A magnified view of part B in the diagram.

[0062] In the embodiments of this application, please refer to Figure 1 2. The cleaning device may include an air source assembly 10 and a liquid source assembly 20, wherein the liquid source assembly 20 is connected to the upper side of the air source assembly 10.

[0063] The upper side here can be based on Figure 2 To understand the directional markers in the text, Figure 2 In the example shown, the liquid source assembly 20 is located on the upper side, and the gas source assembly 10 is located on the lower side.

[0064] The air source assembly 10 is a component capable of forming airflow. The specific structure and composition of the air source assembly 10 are not limited in the embodiments of this application. For example, the air source assembly 10 may include an air source assembly housing 11, an air pump disposed in the air source assembly housing 11, and an air passage pipe disposed in the air source assembly housing 11. After the air pump is running, it can form a negative pressure in the air source assembly housing 11. Then, outside air can enter the air source assembly housing 11, and then the airflow is ejected out of the air source assembly housing 11 with the help of the power of the air pump and the air passage pipe.

[0065] The aforementioned air source assembly housing 11 can be constructed as a whole into a cuboid or columnar structure, with a sealed cavity inside, where the air pump, air pipelines, etc., can be housed. The air source assembly 10 can also be constructed into other structures, which will not be described in detail in the embodiments described herein.

[0066] In the embodiments of this application, please refer to Figures 1 to 3 The liquid source assembly 20 includes a first housing 100, a second housing 200, a liquid pump 300, a circuit board 400, a wiring harness 500, and a sealing connection structure 600.

[0067] The first housing 100 is used to house the liquid pump 300. Of course, some related components of the liquid pump 300 can also be housed in the first housing 100. These related components can be liquid pipes, etc.

[0068] The first housing 100 has a liquid pump chamber 101, in which the liquid pump 300 and its related components can be housed. The combination of the liquid pump 300 and its related components can form a liquid flow. To facilitate the liquid flow from the first housing 100, a liquid outlet 102 can also be provided on the first housing 100. The specific location of the liquid outlet 102 is not limited.

[0069] The formation of the liquid flow and the operation mode and specific structure of the liquid pump 300 and its related components can be set with reference to relevant technologies.

[0070] The second housing 200 is used to house the circuit board 400, which can be fixedly installed in the second housing 200 using fasteners such as screws.

[0071] The second housing 200 has a control cavity 201 in which the aforementioned circuit board 400 and fasteners can be housed. The circuit board 400 is used to control the start-up and shutdown of the liquid pump 300.

[0072] This application does not limit the specific structure of the circuit board 400. The circuit board 400 can be a printed circuit board 400 or a flexible circuit board 400.

[0073] The wiring harness 500 is a component that connects the liquid pump 300 and the circuit board 400. Its function is to transmit electrical signals or control signals so that the circuit board 400 can control the liquid pump 300.

[0074] The first housing 100 and the second housing 200 are two independent housings. In order to realize the purpose of connecting the wire harness 500 to the liquid pump 300 and the circuit board 400, the first housing 100 and the second housing 200 need to be equipped with wire holes for the wire harness 500 to pass through. The wire holes mentioned here are the wire holes mentioned below.

[0075] In addition, the second housing 200 or the first housing 100 can be integrated into the air source assembly housing 11, which can improve the compactness of the decontamination device.

[0076] The sealing connection structure 600 in this embodiment includes an elastic seal 610 and a compression portion 620. The compression portion 620 can compress the elastic seal 610 so that the elastic seal 610 can be interference-fitted into the connection hole 202, thereby achieving a seal. The elastic seal 610 has a hollow channel 611, and the compression portion 620 has an internal channel 621.

[0077] The extrusion part 620 can be connected to one of the first housing 100 and the second housing 200. The other housing 100 and the second housing 200 are provided with a connection hole 202. When the extrusion part 620 is assembled into the connection hole 202, the liquid pump chamber 101 and the control chamber 201 can be connected through the internal channel 621 in the extrusion part 620.

[0078] To simplify the description and facilitate understanding, the embodiments of this application are mainly described with the example of the extrusion part 620 being connected to the first housing 100 and the connection hole 202 being formed on the second housing 200. It can be understood that during assembly, the first housing 100 can be inserted into the second housing 200 through the extrusion part 620.

[0079] In this embodiment, the elastic seal 610 is disposed in the connection hole 202, and the compression part 620 is disposed in the hollow channel 611 of the elastic seal 610. Because the compression part 620 is provided with an internal channel 621, after the first housing 100 is assembled onto the second housing 200, the pump chamber 101 and the control chamber 201 can be connected through the internal channel 621. The wire harness 500 can be assembled into the internal channel 621 and serve to connect the pump 300 and the circuit board 400. Thus, based on the wire harness 500 passing through the wire hole, a sealed connection can be formed between the pump chamber 101 and the control chamber 201 in the liquid source assembly 20, achieving the purpose of isolating water vapor. The liquid source assembly 20 has excellent sealing performance and high sealing reliability.

[0080] In the above embodiments, the first housing 100 is integrally formed with the extrusion part 620, or when the extrusion part 620 is connected to the second housing 200, the second housing 200 can also be integrally formed with the extrusion part 620.

[0081] By integrally molding the first housing 100 and the extrusion part 620, the manufacturing cost of the liquid source assembly 20 can be reduced, and other sealing problems caused by connecting the connecting part to the first housing 100 can also be avoided.

[0082] In addition to the liquid source assembly 20 in the above embodiments, the liquid pump chamber 101 and the control chamber 201 of the liquid source assembly 20 can also be formed from the same housing.

[0083] For example, in some embodiments, the liquid source assembly 20 may include a third housing (not shown) having a liquid pump chamber 101 and a control chamber 201 separated by a partition, which may be disposed in the internal space of the third housing such that the liquid pump chamber 101 and the control chamber 201 are formed on both sides of the partition, respectively.

[0084] Similar to the previous embodiment, the liquid pump 300 is disposed in the liquid pump chamber 101, the circuit board 400 is disposed in the control chamber 201, and the wiring harness 500 needs to be connected between the liquid pump 300 and the circuit board 400.

[0085] Unlike the previous embodiment, the wire harness 500 needs to pass through the partition, so a connection hole 202 needs to be provided on the partition.

[0086] The elastic sealing element 610 in the sealing connection structure 600 is disposed in the connection hole 202, and the extrusion part 620 in the sealing connection structure 600 is disposed in the hollow channel 611 of the elastic sealing element 610.

[0087] It is understandable that, because the elastic seal 610 is located inside the connection hole 202, and the compression part 620 is located inside the hollow channel 611 of the elastic seal 610, and because the compression part 620 is provided with an internal channel 621, after the first housing 100 is assembled onto the second housing 200, the pump chamber 101 and the control chamber 201 can be connected through the internal channel 621. The wire harness 500 can be assembled into the internal channel 621 and serve to connect the pump 300 and the circuit board 400. Thus, based on the wire harness 500 passing through the wire hole, a sealed connection can be formed between the pump chamber 101 and the control chamber 201 in the liquid source assembly 20, achieving the purpose of isolating water vapor. The liquid source assembly 20 has excellent sealing performance and high sealing reliability.

[0088] It is understood that the sealing connection structure 600 in this embodiment can also be applied in other fields or used to connect other structures that require a sealing connection. For example, as a highly integrated liquid source assembly 20, in addition to the above, the liquid source assembly 20 may also include a liquid supply source 21. The liquid collected by the liquid supply source 21 can enter the first housing 100. To avoid setting up a pipe between the liquid supply source 21 and the first housing 100 to achieve communication between the first housing 100 and the liquid supply source 21, the sealing connection structure 600 can be applied between the first housing 100 and the liquid supply source 21.

[0089] Figure 4 A schematic diagram of a liquid source assembly 20 provided according to an embodiment of this application is shown.

[0090] For details, please refer to Figure 4 The extrusion part 620 can be connected to the first housing 100 or the first housing 100 itself has an extrusion part 620. The liquid supply source 21 has a connection hole 202. The elastic seal 610 can be disposed in the connection hole 202. Then, the extrusion part 620 is inserted into the hollow channel 611 of the elastic seal 610 to achieve a sealed connection between the first housing 100 and the liquid supply source 21. The connection is stable and reliable, with excellent airtightness. It can prevent outside air from entering the first housing 100 and / or the liquid supply source 21, and can improve the overall performance of the liquid source assembly 20.

[0091] It is understandable that, compared to the connection between the pump chamber 101 and the control chamber 201, the extrusion section 620 in the above embodiment no longer contains the wiring harness 500, but instead serves as a channel for liquid flow. Specifically, liquid can enter the pump 300 from the supply source 21 via the internal channel 621. Furthermore, compared to the pipe connection method, using a sealed connection to connect the first housing 100 and the supply source 21 simplifies the connection process. The entire connection process only requires installing the elastic seal 610 in the connection hole 202 and installing the extrusion section 620 into the hollow channel 611.

[0092] To explain in detail the structural composition and function of the sealing connection structure 600, this application embodiment will take the liquid source assembly 20 including the first housing 100 and the second housing 200 as an example, and the extrusion part 620 can be integrally formed with the first housing 100.

[0093] In the embodiments of this application, please refer to Figures 1 to 3 The sealing connection structure 600 includes an elastic seal 610 and a compression part 620.

[0094] The elastic seal 610 is disposed in the connection hole 202 for connecting two adjacent chambers. For example, as described above, the connection hole 202 can be formed on the second housing 200. The connection hole 202 is used to connect the pump chamber 101 and the control chamber 201. The elastic seal 610 has a through hollow channel 611. After the elastic seal 610 is installed in the connection hole 202, the hollow channel 611 can serve to connect the two chambers.

[0095] The specific structure of the elastic seal 610 can be configured according to the structure of the connecting hole 202, for example, in Figures 1 to 3 In the example shown, the connection hole 202 is a columnar through hole, and correspondingly, the elastic seal 610 can be constructed as a columnar structure.

[0096] The material of the elastic seal 610 can be selected from rubber, silicone, or other elastic materials. Furthermore, the elastic seal 610 can also be designed to have properties such as ozone resistance and high-temperature aging resistance. In this case, the elastic seal 610 can be manufactured using EPDM rubber.

[0097] The extrusion part 620 has a certain hardness and has an internal channel 621 connecting two chambers. The internal channel 621 can be used to assemble the wire harness 500 or as a liquid flow channel. The extrusion part 620 is disposed in the hollow channel 611 and is configured to compress the elastic seal 610 to deform so that the elastic seal 610 is interference-fitted in the connection hole 202.

[0098] In this embodiment, the extrusion section 620 can be configured according to the structure of the hollow channel 611, for example, in... Figures 1 to 3 In the example shown, the hollow channel 611 is a columnar channel, and correspondingly, the extrusion section 620 can be constructed as a columnar structure.

[0099] In the sealing connection structure 600 of this application embodiment, the elastic seal 610 is located between the hole wall of the connecting hole 202 and the compression part 620. Because the compression part 620 can compress the elastic seal 610, the elastic seal 610 can be interference-fitted between the hole wall of the connecting hole 202 and the compression part 620. Furthermore, because the compression part 620 has an internal channel 621, a sealed connection between the two chambers is achieved. Since the elastic seal 610 is compressed within the connecting hole 202, adverse consequences such as movement or deformation of the elastic seal 610 can be avoided, thereby improving the sealing effect and sealing reliability.

[0100] In some embodiments, please refer to Figures 1 to 3 At least one end of the extrusion section 620 extends out of the hollow channel 611.

[0101] Because the extrusion part 620 extends out of the hollow channel 611, the sealing surface between the extrusion part 620 and the elastic seal 610 can be lengthened, thereby achieving the purpose of improving the sealing effect.

[0102] In addition, please refer to Figure 2 and Figure 3 Because the extrusion section 620 extends out of the hollow channel 611, when it is necessary to configure the wire harness 500, the wire harness 500 can be easily connected and fixed to the extrusion section 620.

[0103] In some embodiments, please refer to Figure 2 and Figure 3 Along the axial direction of the connecting hole 202, the connecting hole 202 has a first axial dimension, the elastic seal 610 has a second axial dimension, and the pressing part 620 has a third axial dimension, with the first axial dimension, the second axial dimension, and the third axial dimension increasing sequentially.

[0104] Through the above-mentioned dimensional design, the length of the sealing surface between the connecting hole 202 and the elastic seal 610 and the length of the sealing surface between the elastic seal 610 and the extrusion part 620 increase sequentially from the hole wall of the connecting hole 202 to the extrusion part 620. This is equivalent to establishing two isolation structures with successively increasing lengths in the direction of water vapor transmission, making it more difficult for water vapor to enter the two chambers.

[0105] In some embodiments, please refer to Figure 2 and Figure 3 The inner wall of the connecting hole 202 is provided with a first flange 612 or the outer wall of the elastic seal 610 is provided with a first flange 612 or both the inner wall of the connecting hole 202 tube and the outer wall of the elastic seal 610 are provided with a first flange 612.

[0106] The first flange 612 is provided so that after the resilient seal 610 is inserted into the connection hole 202, the first flange 612 can be compressed to form a tighter and more secure seal between the connection hole 202 and the resilient seal 610.

[0107] It is understood that there can be multiple first flanges 612, and multiple first flanges 612 can be arranged at intervals along the axial direction of the connecting hole 202.

[0108] It should be noted that the cross-section of the first flange 612 can be triangular, circular or other shapes. The embodiments of this application do not limit the number and structure of the first flange 612.

[0109] In some embodiments, please refer to Figure 2 and Figure 3The inner wall surface of the elastic seal 610 is provided with a second flange 613, or the outer wall surface of the extrusion part 620 is provided with a second flange 613, or both the inner wall surface of the elastic seal 610 and the outer wall surface of the extrusion part 620 are provided with a second flange 613.

[0110] The second flange 613 is provided so that after the extrusion part 620 is inserted into the hollow channel 611, the second flange 613 can be compressed to form a tighter and more secure seal between the elastic seal 610 and the extrusion part 620.

[0111] It is understood that there can be multiple second flanges 613, and multiple second flanges 613 can be arranged at intervals along the axial direction of the connecting hole 202.

[0112] It should be noted that the cross-section of the second flange 613 can be triangular, circular or other shapes. The embodiments of this application do not limit the number and structure of the second flange 613.

[0113] In some embodiments, please refer to Figure 2 and Figure 3 The elastic seal 610 includes a sealing body 614 and a limiting flange 615 extending outward from the outer wall surface of the sealing body 614. The sealing body 614 is disposed in the connection hole 202, and the limiting flange 615 abuts against the outer edge surface of the connection hole 202.

[0114] The outer edge surface here refers to the surface of the solid structure used to form the connecting hole 202, for example, in Figure 3 In the example shown, the second housing 200 has a first surface 203 facing the first housing 100, and the aforementioned connection hole 202 can be formed on the first surface 203. The outer edge surface is formed at the position of the first surface 203 near the connection hole 202.

[0115] Understandably, because the resilient seal 610 includes a limiting flange 615, during the process of inserting the resilient seal 610 into the connecting hole 202, the limiting flange 615 can indicate the positioning status of the resilient seal 610 and prevent further pressure from being applied to the resilient seal 610, thus protecting the resilient seal 610. Specifically, when assembling the resilient seal 610, force needs to be applied to the resilient seal 610 by pressing or other means to make the resilient seal 610 enter the connecting hole 202. When the limiting flange 615 abuts against the outer edge surface, it indicates that the resilient seal 610 is properly assembled, and further pressing of the resilient seal 610 can be stopped.

[0116] It is understandable that the limiting flange 615 can be constructed according to the flatness of the outer edge surface. For example, when the outer edge surface is flat, the limiting flange 615 can be perpendicular to the sealing body 614, and the surface of the limiting flange 615 that abuts against the outer edge surface can also be flat.

[0117] In some embodiments, the outer edge surface can be configured as an uneven or wavy surface, thereby creating a tighter seal between the limiting flange 615 and the outer edge surface, further preventing moisture from entering the two chambers.

[0118] In some embodiments, please refer to Figure 2 and Figure 3 The sealing body 614 is provided with a hook 616 at one end away from the limiting flange 615, which extends outward from the outer wall surface of the sealing body 614.

[0119] The hook 616 can form a stable connection with the connecting hole 202, making it difficult for the elastic seal 610 to loosen after it is installed in the connecting hole 202, thereby improving sealing reliability. Specifically, the second housing 200 can have a ring wall that surrounds the connecting hole 202. During the process of assembling the elastic seal 610 into the connecting hole 202, the hook 616 can deform and pass smoothly through the connecting hole 202. When the limiting flange 615 abuts against the outer edge surface, the hook 616 can reset and hook onto the bottom wall of the ring wall, achieving mechanical interlocking between the elastic seal 610 and the ring wall.

[0120] In some specific embodiments, please refer to Figure 3 The outer wall surface of the hook 616 is constructed as a bevel 6161. The bevel 6161 makes one end of the elastic seal 610 form a chamfer structure, which makes it easier for the elastic seal 610 to be inserted into the connection hole 202.

[0121] In addition, in some specific embodiments, the end of the extrusion portion 620 may also be configured as a chamfer, so that the extrusion portion 620 can be more easily assembled into the hollow channel 611 of the elastic seal 610.

[0122] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0123] In the description of this application, it should be understood that the terms "comprising" and "having" and any variations thereof used in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0124] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing connection structure (600), characterized in that, include: An elastic seal (610) is disposed in a connecting hole (202) for connecting two adjacent chambers, the elastic seal (610) having a through hollow channel (611); And a compression part (620) having an internal channel (621) connecting two chambers, the compression part (620) being disposed within the hollow channel (611), the compression part (620) being configured to compress the elastic seal (610) to deform so that the elastic seal (610) is interference-fitted within the connecting hole (202).

2. The sealing connection structure (600) according to claim 1, characterized in that, At least one end of the extrusion section (620) extends out of the hollow channel (611); The extrusion section (620) has a columnar structure.

3. The sealing connection structure (600) according to claim 1, characterized in that, Along the axial direction of the connecting hole (202), the connecting hole (202) has a first axial dimension, the elastic seal (610) has a second axial dimension, and the pressing part (620) has a third axial dimension, wherein the first axial dimension, the second axial dimension, and the third axial dimension increase sequentially.

4. The sealing connection structure (600) according to claim 1, characterized in that, The inner wall surface of the connecting hole (202) is provided with a first flange (612); And / or, the outer wall surface of the resilient seal (610) is provided with a first flange (612); The inner wall surface of the elastic seal (610) is provided with a second flange (613); And / or, the outer wall surface of the extrusion part (620) is provided with a second flange (613).

5. The sealing connection structure (600) according to any one of claims 1 to 4, characterized in that, The elastic seal (610) includes a sealing body (614) and a limiting flange (615) extending outward from the outer wall surface of the sealing body (614). The sealing body (614) is disposed in the connection hole (202), and the limiting flange (615) abuts against the outer edge surface of the connection hole (202).

6. The sealing connection structure (600) according to claim 5, characterized in that, The sealing body (614) is further provided with a hook (616) at one end away from the limiting flange (615), and the hook (616) extends outward from the outer wall surface of the sealing body (614). The outer wall surface of the hook (616) is constructed as a slope (6161).

7. A liquid source assembly (20), characterized in that, include: The first housing (100) has a liquid pump chamber (101); The second housing (200) has a control cavity (201); A liquid pump (300) is disposed in the liquid pump chamber (101); A circuit board (400) is disposed in the control cavity (201); A wiring harness (500) is connected to the liquid pump (300) and the circuit board (400); And a sealing connection structure (600) according to any one of claims 1 to 6, wherein the compression portion (620) in the sealing connection structure (600) is connected to one of the first housing (100) and the second housing (200), the other of the first housing (100) and the second housing (200) is provided with a connection hole (202), the elastic seal (610) in the sealing connection structure (600) is disposed in the connection hole (202), and the compression portion (620) is disposed in the hollow channel (611) of the elastic seal (610).

8. The liquid source assembly (20) according to claim 7, characterized in that, One of the first housing (100) and the second housing (200) is integrally formed with the extrusion part (620).

9. A liquid source assembly (20), characterized in that, include: The third housing has a pump chamber (101) and a control chamber (201) separated by a partition; A liquid pump (300) is disposed in the liquid pump chamber (101); A circuit board (400) is disposed in the control cavity (201); A wiring harness (500) is connected to the liquid pump (300) and the circuit board (400); And the sealing connection structure (600) according to any one of claims 1 to 6, wherein a connection hole (202) is provided on the partition plate, the elastic sealing element (610) in the sealing connection structure (600) is disposed in the connection hole (202), and the compression part (620) in the sealing connection structure (600) is disposed in the hollow channel (611) of the elastic sealing element (610).

10. A decontamination device, characterized in that, Includes the liquid source assembly (20) as described in claim 7, 8 or 9.

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