An integrated flow meter device

Abstract

The utility model provides a kind of integrated flowmeter device, including pipeline, impeller, shell, mainboard, flow detection module, battery module;The pipeline passes through the shell and is fixedly connected, the shell includes main shell and auxiliary shell, and the main shell for accommodating mainboard, flow detection module and the auxiliary shell for accommodating battery module are respectively arranged at the opposite sides outside the pipeline;The impeller is arranged inside the pipeline, for cooperating the flow detection module to carry out flow detection;The battery module, the flow detection module are respectively electrically connected with the mainboard, optimize internal space layout, reduce overall thickness.

Description

Technical Field

[0001] This utility model relates to the field of flow meters, and in particular to an integrated flow meter device. Background Technology

[0002] A flow meter is an instrument used to measure the flow rate of liquids or gases, and it is widely used in industrial process monitoring, energy metering, water resource management, environmental monitoring, and smart home systems. Based on different measurement principles, common flow meters include mechanical flow meters, electromagnetic flow meters, and ultrasonic flow meters. Among these, the method based on Hall effect sensors to detect impeller speed and calculate flow rate is very common in small to medium flow measurement scenarios due to its simple structure, moderate cost, and accurate measurement.

[0003] Traditional designs often employ a split architecture, separating the sensor probe from the signal processing circuit board and connecting them via wiring harnesses. This approach not only increases external size and installation complexity but also introduces risks to connection reliability. Even in integrated designs, the common practice is to compactly stack the circuit board, battery, and sensor probe within a cylindrical or block-shaped housing. This radial or axial stacking layout directly limits further reduction in device size, often resulting in a larger thickness or diameter.

[0004] For example, in the utility model patent titled "A Liquid Flow Metering Device, Component, and System," with patent publication number CN222635580U, the device can be manufactured using low-cost casting and stamping processes, resulting in low manufacturing costs and a long lifespan. The metering structure can be machined into an integral cavity and connected to the sleeve via welding during assembly, thus preventing leakage of the measured liquid and avoiding external liquid seepage into the metering structure, making it better adaptable to the application environment. The float in the device operates stably, and the position detection device can sense the position of the detection part at the end of the float connecting rod in real time to obtain accurate liquid rise height, resulting in high metering accuracy. However, this new device stacks all components such as the motherboard and battery in the housing above the pipeline, making the overall structure relatively bulky.

[0005] Therefore, there is still significant room for improvement in the existing flow meter structures in terms of miniaturization, flattening, and enhancing the rationality and reliability of internal layout. Utility Model Content

[0006] Therefore, there is a need to provide an integrated flow meter device to solve the problems of the existing technology mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides an integrated flow meter device, including a pipe, an impeller, a housing, a main board, a flow detection module, and a battery module. The pipe passes through and is fixedly connected to the housing. The housing includes a main shell and a secondary shell, with the main shell for housing the main board and the flow detection module and the secondary shell for housing the battery module respectively disposed on opposite sides of the outside of the pipe. The impeller is disposed inside the pipe and is used to cooperate with the flow detection module for flow detection. The battery module and the flow detection module are electrically connected to the main board.

[0008] Furthermore, it also includes a nipple connector, which is disposed at one end of the pipe and integrally formed with the pipe.

[0009] Furthermore, the main housing includes a main base and a front shell that are detachably connected to each other, and the front shell is a flat plate structure.

[0010] Furthermore, it also includes a display screen, which is electrically connected to the motherboard and disposed on the inner side of the front cover, and the front cover has a first opening at the position corresponding to the display screen.

[0011] Furthermore, it also includes a button module, which is electrically connected to the motherboard and disposed on the inner side of the front cover, and the front cover has a second opening at the position corresponding to the button module.

[0012] Furthermore, the sub-casing includes a sub-base and a cover plate, the battery module is disposed inside the sub-base, and the cover plate covers the opening of the sub-base.

[0013] Furthermore, it also includes an impeller pressure plate, which is disposed at one end of the impeller inside the pipe, and the impeller pressure plate is used to fix the impeller at the measuring position in accordance with the structure of the pipe.

[0014] Furthermore, it also includes a quick connector, which is detachably and securely connected to the other end of the pipe.

[0015] Furthermore, after the quick connector is connected to the pipe, a sealing gasket is provided between the quick connector and the impeller pressure plate.

[0016] Furthermore, the flow detection module is located on the back of the motherboard.

[0017] Unlike existing technologies, the above-mentioned technical solution, compared with existing split or stacked flow meters, features a novel integrated flat structure that significantly optimizes the internal space layout. The main circuit is located on the front, and the battery on the rear, reducing the overall thickness through planar distribution. Since the flow detection module is directly mounted on the back of the mainboard, no additional probe bracket or lead wire connection is required, simplifying the assembly process, reducing the number of structural components, and resulting in a smaller and lighter overall structure suitable for installation in space-constrained environments. Attached Figure Description

[0018] Figure 1 An exploded view of the structure of an integrated flow meter device according to a specific embodiment;

[0019] Figure 2 This is a front view of the structure of an integrated flow meter device according to a specific embodiment;

[0020] Figure 3 This is a rear view of the structure of an integrated flow meter device according to a specific embodiment;

[0021] Figure 4 The right view of the structure of an integrated flow meter device according to a specific embodiment;

[0022] Figure 5 This is a right-side sectional view of the structure of an integrated flow meter device according to a specific embodiment;

[0023] Figure 6 This is a bottom view of the structure of an integrated flow meter device according to a specific embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Pipe; 20. Impeller; 30. Casing; 31. Main casing; 311. Main base; 312. Front casing; 32. Secondary casing; 321. Secondary base; 322. Cover plate; 40. Main board; 50. Nipple connector; 60. Display screen; 601. First opening; 602. Second opening; 70. Button module; 80. Impeller pressure plate; 90. Quick connector; 91. Sealing gasket. Detailed Implementation

[0026] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0029] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0030] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0031] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0032] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0033] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] Please see Figures 1 to 6 This embodiment provides an integrated flow meter device, including a pipe 10, an impeller 20, a housing 30, a main board 40, a flow detection module, and a battery module. The pipe 10 passes through and is fixedly connected to the housing. The housing 30 includes a main housing 31 and a secondary housing 32. The main housing 31, which houses the main board 40 and the flow detection module, and the secondary housing 32, which houses the battery module, are respectively located on opposite sides of the outside of the pipe 10. The impeller 20 is disposed inside the pipe 10 and is used to cooperate with the flow detection module for flow detection. The battery module and the flow detection module are electrically connected to the main board 40. This structural arrangement allows the main board 40 and the battery module to be located on opposite sides of the pipe 10, thereby achieving a flattened layout in the thickness direction and a more compact overall structure. The impeller 20 is disposed inside the pipe 10, and its rotation is used to cooperate with the flow detection module to achieve flow detection. Both the battery module and the flow detection module are electrically connected to the main board 40 to ensure the system's signal processing and power supply functions.

[0036] In practical implementation, the flow detection module can take several forms. It can employ a Hall effect sensor, with the Hall element mounted on the back of the main board 40, close to the outer wall of the pipe 10, to acquire the flow signal by detecting the rotation frequency of the magnetic rotor on the impeller 20. Alternatively, it can use a turbine-type detection unit, measuring the rotational speed by sensing the eddy currents of the impeller 20. Another option is a photoelectric sensor, calculating the flow rate by detecting the light-blocking frequency of the impeller 20 blades. These three forms can be flexibly configured according to cost and accuracy requirements.

[0037] Regarding the fixing method between the pipe 10 and the outer casing 30, both the main casing 31 and the secondary casing 32 are provided with semi-annular grooves that match the shape of the pipe 10. After being assembled back-to-back, they form a complete fixing channel. After the pipe 10 passes through this channel, the main casing 31 and the secondary casing 32 can be fixed by screws, clips, or adhesive, thereby achieving rapid installation and high-strength positioning. This structure not only facilitates assembly but also effectively improves anti-loosening and sealing performance.

[0038] The battery module can use various power supply units, such as conventional dry cell batteries, button batteries, or small lithium batteries. The independent cavity structure design of the sub-casing 32 allows for easy replacement and maintenance, avoiding the space waste caused by traditional stacked structures. The impeller 20 and the flow detection module work together via magnetic induction or optical induction. When liquid flows through the pipe 10, the impeller 20 rotates due to fluid impact. The sensor detects the rotation frequency, and the main board 40 calculates the flow rate, achieving high-precision measurement.

[0039] Compared to existing split or stacked flow meters, the integrated flat structure of this embodiment optimizes the internal space layout. The main circuit is located on the front, and the battery on the rear, reducing the overall thickness through planar distribution. Since the flow detection module is directly mounted on the back of the motherboard 40, no additional probe bracket or lead wire connection is required, simplifying the assembly process, reducing the number of structural components, and improving vibration resistance and environmental sealing. The overall structure is smaller and lighter, making it suitable for installation in space-constrained environments.

[0040] In some embodiments, a nipple connector 50 is also included, which is disposed at one end of the pipe 10 and integrally formed with the pipe 10. In this example, the nipple connector 50 and the pipe 10 are an integral structure, which can be integrally formed by injection molding, compression molding, or integral casting processes. This eliminates the need for additional purchase and installation of external nipple accessories in traditional structures, reducing assembly difficulty and cost. In traditional flow meter structures, plastic or metal nipple accessories are usually installed separately at the flow meter outlet for connection with the hose. Such structures not only increase the number of parts, but also require 91 sealing gaskets, which can easily cause leakage if the user does not install them correctly. In this embodiment, the nipple connector 50 structure is integrally formed directly at the end of the pipe 10 using a mold, forming a smooth transition fluid channel without the need for additional sealing accessories. During processing, thermoplastic engineering plastics or metal die casting can be used for one-time molding, which ensures overall strength and eliminates assembly errors. The one-piece molding structure of this embodiment brings significant benefits: First, it reduces the number of parts and assembly steps, improving production efficiency; second, since there is no assembly interface, the flow channel continuity is better and the fluid resistance is lower; third, the overall sealing performance is improved, avoiding potential problems such as leakage and seepage; finally, when installing the flow meter, the user can directly attach the hose or quick-connect pipe to the nipple connector 50, making it more convenient to use and more versatile.

[0041] In some embodiments, the main housing 31 includes a main base 311 and a front housing 312 that are detachably connected to each other, the front housing 312 being a flat plate structure. The main base 311 may be a square, circular, or elliptical groove-shaped structure, with an internal space for accommodating the main board 40, flow detection module, and related electronic components. This structure makes the main housing 31 more flat, facilitating a tight fit with the pipe 10, and also facilitating standardized production molds and modular circuit layout. Specifically, the main base 311 and the front housing 312 can be detachably connected in various ways. For example, the first method is a screw-fixed connection, with several threaded holes around the periphery of the main base 311 and corresponding through holes on the edge of the front shell 312. Secure installation is achieved by tightening the screws. The second method is a snap-fit ​​connection, with several elastic latches on the outer wall of the main base 311 and corresponding slots on the inner edge of the front shell 312. Quick assembly and disassembly are achieved by pressing together. The third method is a turn-lock connection, with bosses and rotating latches on the mating surfaces of the main base 311 and the front shell 312. Locking or releasing is achieved by slight rotation. All three methods ensure reliable fixation and facilitate maintenance and replacement. Several support pillars or limiting structures can be installed inside the main base 311 to position the motherboard 40 and flow detection module, thereby ensuring the stability of the electronic components. The front shell 312 has a flat, thin design, which significantly reduces the overall size of the device and facilitates higher integration. This split structure of the main housing 31 facilitates both manufacturing and maintenance. Replacing the front housing 312 does not require disassembling the entire flowmeter body, reducing maintenance costs. In this embodiment, designing the main housing 31 as a combination of the main base 311 and the front housing 312 not only improves assembly flexibility but also enhances the convenience of circuit maintenance. The flat front housing 312 structure reduces the overall thickness of the device and also provides mounting interfaces for components such as the display screen 60 and the button module 70, further improving the modularity of the entire unit.

[0042] In some embodiments, a display screen 60 is also included. The display screen 60 is electrically connected to the motherboard 40 and disposed inside the front housing 312. The front housing 312 has a first opening 601 at a position corresponding to the display screen 60. The display screen 60 can be an LED display screen 60, an LCD screen, or an OLED display screen 60, etc. Through the display screen 60, the instantaneous flow rate value, cumulative flow rate value, working status indicator, and battery power information detected by the flow meter can be displayed in real time. The display screen 60 is fixed inside the front housing 312 and can be installed on the front of the motherboard 40 by screws, slots, or adhesive. To improve protection performance, a transparent protective film or a rigid transparent protective cover is preferably provided at the first opening. The protective film can be made of polycarbonate or reinforced acrylic material, which has good light transmittance and impact resistance, and can prevent dust, moisture, or external forces from damaging the display screen 60. When fluid flows through pipe 10, impeller 20 rotates with the flow rate. The flow detection module transmits the rotation signal of impeller 20 to main board 40. Main board 40 calculates the flow parameters through internal processing circuitry and updates them in real time to display on screen 60. Users can intuitively view real-time flow changes and cumulative usage on display screen 60, facilitating monitoring of system operation status. This embodiment integrates the display module on the front housing 312, eliminating the need for an external display and further enhancing the integration. The displayed information is intuitive and clear, easy for on-site personnel to read, and, combined with a transparent protective film, provides dust and water resistance, enabling long-term stable operation in complex industrial environments.

[0043] In some embodiments, a button module 70 is also included. The button module 70 is electrically connected to the main board 40 and disposed inside the front housing 312. It is used to realize functions such as parameter setting, data clearing, and mode switching of the flow meter. The front housing 312 has a second opening 602 at the position corresponding to the button module 70 to facilitate user operation. The button module 70 can be in the form of a mechanical button, a tactile switch, or a capacitive touch button. Mechanical buttons have the characteristics of distinct tactile feedback and high reliability, making them suitable for industrial environments; touch buttons have a simple structure and excellent waterproof and dustproof performance, making them suitable for home or smart terminal scenarios. The button module 70 can be connected to the main board 40 via conductive adhesive, cable, or flexible circuit board to realize signal input. In a specific implementation, the button module 70 is fixed inside the front housing 312, and a silicone pad or sealing ring prevents liquid from seeping into the housing. After the user presses the button, the signal is processed by the main board 40 to realize function switching, such as unit selection, cumulative clearing, and working mode switching. Combined with the interaction of the display screen 60, the user can complete the basic settings and status reading of the flow meter. This embodiment integrates a button module 70 into the front housing 312, enabling human-machine interaction. This allows the flow meter to not only perform detection functions but also have independent operation and setting capabilities, improving ease of use. Furthermore, the button module 70 and the display screen 60 are co-located on the same plane, resulting in an aesthetically pleasing layout, intuitive operation, and a compact structure, contributing to the overall flattening and integration of the flow meter.

[0044] In some embodiments, the sub-housing 32 includes a sub-base 321 and a cover plate 322. The battery module is disposed within the sub-base, and the cover plate 322 covers the opening of the sub-base 321. The sub-base 321 may adopt a circular or square groove structure similar to the main base 311, preferably a circular groove, to reduce volume and achieve a compact layout. The sub-base 321, through its relative arrangement with the pipe 10 and the main housing 31, allows the battery module to be independently installed on the other side of the pipe 10, achieving electrical partitioning and optimized heat dissipation. The cover plate 322 and the sub-base 321 can be detachably connected in various ways. For example, a threaded connection can be used for reliable sealing by tightening; a snap-fit ​​connection can be used for quick assembly and disassembly; or a magnetic connection can be used to facilitate convenient replacement while ensuring a seal using magnetic materials. A sealing ring is preferably provided between the cover plate 322 and the sub-base 321 to prevent moisture from entering the battery cavity. With this structure, users can directly replace the battery module without disassembling the main housing 31, improving maintenance convenience. Due to the independent partition design of the sub-casing 32, the main circuit and power module are isolated from each other, effectively reducing electromagnetic interference and improving overall electrical safety. This embodiment, through the independent detachable design of the sub-casing 32, not only facilitates battery replacement but also optimizes the space utilization of the device.

[0045] In some embodiments, an impeller 20 clamping plate 80 is also included. The impeller clamping plate 80 is disposed at one end of the impeller 20 inside the pipe 10. The impeller clamping plate 80 is used to fix the impeller 20 in the measuring position in conjunction with the structure of the pipe 10. Specifically, the impeller 20 is installed from one end of the pipe 10. The inner wall of the pipe 10 has a positioning protrusion, which is used to abut one side of the impeller 20, positioning the impeller 20 in a fixed measuring position. After the impeller 20 is installed, it is pressed and fixed from the other end by the impeller clamping plate 80. The impeller clamping plate 80 is connected to the pipe 10 by threads, snaps, or snap rings. Taking a Hall effect flow meter as an example, a magnetic rotor is installed on the impeller 20. When the fluid drives the impeller 20 to rotate, the Hall sensor senses the frequency of the magnetic field change and transmits the signal to the main board 40. If the impeller 20 is misaligned or loose, the measurement result will be inaccurate. Through the structure of the impeller clamping plate 80, the impeller 20 can maintain a stable rotation state within the measuring area, thereby improving the detection accuracy. In this embodiment, the impeller pressure plate 80 ensures the stability and coaxiality of the impeller 20's rotation, preventing axial movement due to fluid impact, extending its service life, and ensuring the accuracy and repeatability of signal acquisition. Simultaneously, the pressure plate structure facilitates disassembly and maintenance; if the impeller 20 needs replacement, simply remove the pressure plate, making the operation simple and efficient.

[0046] In some embodiments, a quick connector 90 is also included, which is detachably and fixedly connected to the other end of the pipe 10. Specifically, a threaded connection can be used, with an internal thread at the end of the pipe 10 and an external thread at the end of the quick connector 90, secured by tightening. The other end of the quick connector 90 can be designed with different interface types depending on the application scenario, such as a hose plug-in type, a quick-connect snap-on type, or a flange connection type, to adapt to different fluid systems. This detachable connection structure allows users to quickly change the connector type during installation or maintenance, resulting in higher compatibility. The quick connector 90 can be made of plastic, copper, or stainless steel, ensuring pressure resistance while also controlling costs. This embodiment, through the inclusion of the quick connector 90, significantly improves the installation flexibility and versatility of the device; it can achieve compatibility according to different interface standards, reducing subsequent installation costs and making it suitable for various industrial or household fluid systems.

[0047] Furthermore, after the quick connector 90 is connected to the pipe 10, a sealing gasket 91 is provided between the quick connector 90 and the impeller pressure plate 80. The sealing gasket 91 can be made of flexible waterproof materials such as rubber, silicone, fluororubber, or polytetrafluoroethylene, and can have a planar annular, conical, or corrugated structure. During installation, the sealing gasket 91 is compressed and deformed to form a sealed contact surface, effectively preventing fluid leakage. This structure forms a double-sealed protective layer between the quick connector 90 and the internal components, maintaining good sealing performance even under high pressure or vibration environments. The sealing gasket 91 also acts as a buffer, reducing the impact of pipe 10 vibration on the measurement stability of the impeller 20. This embodiment, by adding the sealing gasket 91 structure, further improves the overall leak-proof performance and shock resistance, ensuring the reliability and durability of the flow meter during long-term operation, and providing a reliable guarantee for the stable measurement of the system.

[0048] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. An integrated flow meter device, characterized in that: The device includes a pipe, an impeller, a housing, a main board, a flow detection module, and a battery module. The pipe passes through and is fixedly connected to the housing. The housing includes a main housing and a secondary housing. The main housing for housing the main board and the flow detection module, and the secondary housing for housing the battery module are respectively located on opposite sides of the outside of the pipe. The impeller is located inside the pipe and is used to cooperate with the flow detection module to perform flow detection. The battery module and the flow detection module are electrically connected to the main board.

2. The integrated flow meter device according to claim 1, characterized in that: It also includes a nipple connector, which is disposed at one end of the pipe and integrally formed with the pipe.

3. The integrated flow meter device according to claim 1, characterized in that: The main housing includes a main base and a front shell that are detachably connected to each other, and the front shell is a flat plate structure.

4. The integrated flow meter device according to claim 3, characterized in that: It also includes a display screen, which is electrically connected to the motherboard and disposed on the inner side of the front cover, and the front cover has a first opening at the position corresponding to the display screen.

5. The integrated flow meter device according to claim 3, characterized in that: It also includes a button module, which is electrically connected to the motherboard and disposed on the inner side of the front cover. The front cover has a second opening at the position corresponding to the button module.

6. The integrated flow meter device according to claim 1, characterized in that: The sub-casing includes a sub-base and a cover plate. The battery module is disposed inside the sub-base, and the cover plate covers the opening of the sub-base.

7. The integrated flow meter device according to claim 1, characterized in that: It also includes an impeller pressure plate, which is disposed at one end of the impeller inside the pipe. The impeller pressure plate is used to fix the impeller at the measuring position in accordance with the structure of the pipe.

8. The integrated flow meter device according to claim 7, characterized in that: It also includes a quick connector that is detachably and securely connected to the other end of the pipe.

9. The integrated flow meter device according to claim 8, characterized in that: After the quick connector is connected to the pipeline, a sealing gasket is provided between the quick connector and the impeller pressure plate.

10. The integrated flow meter device according to claim 1, characterized in that: The flow detection module is located on the back of the motherboard.

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