Flow meter connector and mass flow meter

Abstract

The utility model relates to a flowmeter connector and mass flowmeter. Flowmeter connector includes connecting main part, connecting seat and spacing component, the inside of connecting main part is equipped with connecting cavity, and the both ends of connecting main part are used for connecting with sensor and transmission mechanism respectively. Connecting seat is connected with connecting main part and is located in connecting cavity, and a plurality of connecting pins are fixedly provided on connecting seat, and the both ends of connecting pin respectively protrude from the both sides surface of connecting seat to be electrically connected with sensor and transmission mechanism respectively. Spacing component is arranged between connecting main part and transmission mechanism, and is used for keeping transmission mechanism and connecting main part from rotating relatively when connecting main part and transmission mechanism are connected. The flowmeter connector can realize the connection fixation and signal transmission between sensor and transmission mechanism, can effectively prevent the pin damage problem caused by the rotation of transmission mechanism in the subsequent use process, thereby can improve the use reliability of mass flowmeter, prolongs its life.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to a flow meter connector and a mass flow meter. Background Technology

[0002] A Coriolis mass flow meter is a measuring instrument that can directly measure the mass flow rate of a medium. It boasts advantages such as high measurement accuracy and a wide range of measurable media. It mainly consists of two parts: a sensor and a transmitter, which are typically connected by a connector. The connector serves two main functions: first, to connect and secure the sensor and transmitter housings; and second, to facilitate signal and energy transmission between the sensor and transmitter.

[0003] A common connector structure consists of circumferentially arranged copper pins within a connector. The two ends of each pin connect to the sensor and the transmitter, respectively, typically via a plug-in connection. One end of the connector is fixed to the sensor, while the other end connects to the transmitter using a clamp or threaded connection. However, during flowmeter use, if the clamp or thread loosens, causing relative movement between the transmitter and the connector, the copper pins will be damaged, affecting the connector's lifespan. Utility Model Content

[0004] One objective of this invention is to address the shortcomings of existing technologies, such as damage to the copper needle and reduced service life caused by relative movement between the transmitter and connector due to loose clamps or threads. This invention provides a flowmeter connector. To solve the above technical problems, this invention adopts the following technical solution: A flow meter connector, comprising: The connecting body has a connecting cavity inside, and its two ends are used to connect to the sensor and the transmitter mechanism, respectively. The connector is connected to the connector body and located inside the connector cavity. Multiple connector pins are fixedly inserted on the connector, with the two ends of the connector pins protruding from the two side surfaces of the connector to be electrically connected to the sensor and the transmitter mechanism, respectively. A limiting component is disposed between the connecting body and the transmitting mechanism. The limiting component is used to prevent relative rotation between the transmitting mechanism and the connecting body when the connecting body is connected to the transmitting mechanism.

[0005] In one embodiment, the connection body and the transmitter mechanism are detachably connected; The connecting body is rotatably provided with a connecting nut, which is used to connect with the connecting cylinder of the transmitter mechanism by thread, so that the connecting body and the transmitter mechanism are fixed axially.

[0006] In one embodiment, a positioning ring is protruding from the outer periphery of the connecting body, and a connecting nut is sleeved on the outside of the positioning ring and can abut against one side surface of the positioning ring. The other side surface of the positioning ring can abut against the end face of the connecting cylinder of the transmitter mechanism.

[0007] In one embodiment, the flow meter connector further includes a seal disposed between the surfaces of the connection body and the transmitter mechanism that come into contact with each other.

[0008] In one embodiment, the limiting component includes a limiting boss and a limiting groove, which are respectively disposed on the surfaces of the connecting body and the transmitting mechanism that are in contact with each other. The limiting boss and the limiting groove are engaged to prevent relative rotation between the transmitting mechanism and the connecting body.

[0009] In one embodiment, the connection between the connecting body and the sensor is a welded connection; The end of the connecting body used to connect with the sensor is provided with a connecting bayonet. The connecting bayonet allows part of the connecting body to be inserted into the connection port of the sensor. The surface of the connecting bayonet is used to abut against the end face of the connection port of the sensor along the axial direction and weld it in place.

[0010] In one embodiment, one end of the connecting pin is plugged into the transmitter mechanism; A connection hole is provided on the end face of the connecting body facing the transmitter mechanism. The connection hole is used to insert a fastener, which is used to connect the main board of the transmitter mechanism to the connecting body.

[0011] In one embodiment, multiple connecting pin arrays are distributed and the edge shape of the orthographic projection on the connector is a non-rotationally symmetric figure.

[0012] In one embodiment, the connector is made of insulating material, and the outer peripheral surface of the connector is adapted to fit and fix the inner peripheral surface of the connecting cavity inside the connector body.

[0013] Another objective of this invention is to provide a mass flow meter, comprising a sensor, a transmitter mechanism, and a flow meter connector as described above, wherein the sensor and the transmitter mechanism are connected via the flow meter connector.

[0014] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: In this invention, the two ends of the connecting body are respectively connected to the sensor and the transmitter mechanism, thereby achieving a fixed connection between the sensor and the transmitter mechanism. The connecting body contains a connecting seat with multiple connecting pins. The two ends of each connecting pin are electrically connected to the sensor and the transmitter mechanism, enabling signal transmission between them. By setting a limiting component, the transmitter mechanism and the connecting body cannot rotate relative to each other, thus achieving circumferential positioning and fixing between them. This effectively prevents pin damage caused by rotation of the transmitter mechanism during subsequent use, thereby improving the reliability of the mass flow meter and extending its service life. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a mass flow meter according to an embodiment of the present utility model.

[0016] Figure 2 yes Figure 1 The diagram shows the structure of the flow meter's transmitter mechanism connected to the flow meter connector.

[0017] Figure 3 yes Figure 2 A cross-sectional schematic diagram of the structure shown.

[0018] Figure 4 yes Figure 2 Deconstruction diagram of the structure shown Figure 1 .

[0019] Figure 5 yes Figure 2 Deconstruction diagram of the structure shown Figure 2 .

[0020] The annotations in the attached figures are explained as follows: 10-Sensor; 11-Support cylinder; 20-Transmitter mechanism; 21-Connecting cylinder; 22-Plug; 23-Fastener; 30 - Flow meter connector; 31-Connecting body; 311-Connecting nut; 312-Positioning ring; 313-Connecting bayonet; 314-Connecting hole; 315-Annular mounting groove; 32-Connector; 321-Connector pin; 33-Limit component; 331-Limit boss; 332-Limit groove; 34 - Seals. Detailed Implementation

[0021] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0022] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) 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. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0023] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] See Figure 1 This invention provides a mass flow meter, including a sensor 10, a transmitter 20, and a flow meter connector 30. The sensor 10 and the transmitter 20 are connected via the flow meter connector 30. The sensor 10 mainly includes a flow tube, a drive coil, and a detection coil. The drive coil drives the vibration of the flow tube, and the detection coil detects the vibration of the flow tube and transmits the detected vibration information to the transmitter 20. The transmitter 20 mainly includes a signal processing system and a drive system. The drive system generates a drive signal and provides it to the drive coil. The signal processing system receives the vibration information detected by the detection coil and converts it into a mass flow signal and other parameter signals.

[0025] The flow meter connector 30 is used to connect the sensor 10 and the transmitter 20 to achieve mechanical connection and signal transmission between the two.

[0026] It should be noted that mass flow meters typically come in different types, such as integrated flow meters and split flow meters. Integrated flow meters combine the sensor 10 and transmitter into a single unit. They are compact, easy to install, and suitable for typical industrial scenarios with limited space, simple media, and favorable environments. In this application scenario, the transmitter mechanism 20 mentioned above should be understood as the transmitter itself, and the flow meter connector 30 is used to connect the sensor 10 and the transmitter, achieving connection fixation and signal transmission between them.

[0027] A split-type flow meter refers to a flow meter where the sensor 10 and transmitter are installed and used separately. Split-type flow meters offer high flexibility and are suitable for harsh environments such as high temperature, high pressure, strong corrosion, or requiring remote monitoring. In this application scenario, the transmitter mechanism 20 mentioned above should be understood as including the junction box and the transmitter body, which can be connected by a cable. The flow meter connector 30 is used to connect the sensor 10 and the junction box, achieving connection fixation and signal transmission between the two.

[0028] The specific embodiments of the flow meter connector 30 of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] See Figure 2 and Figure 3 The flowmeter connector 30 according to an embodiment of the present invention includes a connecting body 31, a connecting seat 32, and a limiting component 33. The connecting body 31 has a connecting cavity inside, and its two ends are respectively used for connecting to a sensor 10 and a transmitter mechanism 20. The connecting seat 32 is connected to the connecting body 31 and located within the connecting cavity. A plurality of connecting pins 321 are fixedly passed through the connecting seat 32, and the two ends of the connecting pins 321 protrude from the two side surfaces of the connecting seat 32 to electrically connect to the sensor 10 and the transmitter mechanism 20 respectively.

[0030] The limiting component 33 is disposed between the connecting body 31 and the transmitter mechanism 20. The limiting component 33 is used to prevent the transmitter mechanism 20 from rotating relative to the connecting body 31 when the connecting body 31 is connected to the transmitter mechanism 20.

[0031] In this invention, the two ends of the connecting body 31 are respectively connected to the sensor 10 and the transmitter mechanism 20, thereby achieving a fixed connection between the sensor 10 and the transmitter mechanism 20. The connecting body 31 contains a connecting seat 32, which has multiple connecting pins 321. The two ends of each connecting pin 321 are electrically connected to the sensor 10 and the transmitter mechanism 20, thereby enabling signal transmission between them. By setting a limiting component 33, the transmitter mechanism 20 and the connecting body 31 cannot rotate relative to each other, thus achieving circumferential positioning and fixing between them. This effectively prevents pin damage caused by rotation of the transmitter mechanism 20 during subsequent use, thereby improving the reliability of the mass flow meter and extending its service life.

[0032] like Figure 3As shown, the connecting body 31 can be roughly shaped as a hollow cylindrical structure with openings at both ends. The connecting body 31 can be made of stainless steel or other metal materials to ensure sufficient overall structural strength. The hollow portion inside the connecting body 31 forms a connecting cavity for mounting the connecting seat 32. The connecting seat 32 is mainly used to house the connecting pins 321 to achieve signal transmission between the transmitter mechanism 20 and the sensor 10. For example, the connecting seat 32 can be made of insulating materials, such as glass or ceramic.

[0033] The outer peripheral surface of the connector 32 is fitted and fixed to the inner peripheral surface of the connecting cavity inside the connecting body 31. For example, if the connector 32 is made of glass, it can be fixed to the connecting body 31 by sintering.

[0034] like Figure 3 As shown, a plurality of connecting pins 321 are fixedly passed through the connector 32. Optionally, the connecting pins 321 can be made of copper needles. In a specific implementation, taking the connector 32 as an example made of glass material, during the sintering process of the connector 32, each connecting pin 321 can be fixedly passed through the connector 32 by sintering at the same time, with each connecting pin 321 spaced apart from each other.

[0035] It is understood that in other embodiments, the connector 32 may also be made of other materials. When multiple connector pins 321 are fixedly inserted on the connector 32, insulating material can be provided between the connector pins 321 and the connector 32 for insulation isolation. The specific setting can be made according to actual needs.

[0036] like Figure 3 As shown, the two ends of each connecting pin 321 protrude from both sides of the connecting base 32. The two ends of each connecting pin 321 can be electrically connected to the sensor 10 and the transmitter mechanism 20 by quick-connection or by soldering wires.

[0037] For example, see reference Figure 3 One end of the connecting pin 321 is plugged into the connector of the transmitter mechanism 20. For example, the transmitter mechanism 20 is provided with a plug 22, which may have multiple plug-in ports, each corresponding to a different connecting pin 321. Thus, by connecting the multiple connecting pins 321 to the multiple plug-in ports, a convenient and quick electrical connection between the flowmeter connector 30 and the transmitter mechanism 20 can be achieved.

[0038] See Figure 4In one embodiment, the edges of the orthographic projections of the array of multiple connecting pins 321 onto the connector 32 are non-rotationally symmetric. It is worth noting that in this embodiment, a non-rotationally symmetric shape refers to a shape that cannot coincide with itself regardless of how many degrees (excluding 0° and 360°) it is rotated around any point; that is, the shape does not possess rotational symmetry. The non-rotationally symmetric shape can be a trapezoid, a semicircle, or an isosceles triangle, etc. In other words, in this embodiment, the edges of the orthographic projections of the array of multiple connecting pins 321 onto the connector 32 can be trapezoidal or semicircular, etc.

[0039] Correspondingly, the multiple plug-in ports on the plug 22 of the transmitter mechanism 20 are arranged with multiple connecting pins 321. This prevents operational errors and ensures correct insertion / reverse insertion when the flowmeter connector 30 and the transmitter mechanism 20 are electrically connected via multiple connecting pins 321 and multiple plug-in ports, thus improving operational convenience.

[0040] Alternatively, in other embodiments, one end of the connecting pin 321 can also be electrically connected to the transmitter mechanism 20 by welding a wire.

[0041] See Figure 3 In one embodiment, the other end of the connecting pin 321 can be connected to the drive coil and detection coil of the sensor 10 by soldering wires. This enables electrical connection between the flow meter connector 30 and the sensor 10, thereby facilitating signal transmission between the sensor 10 and the transmitter mechanism 20.

[0042] It is understandable that the multiple connecting pins 321 are arranged in an array. When soldering them to the wires, it is helpful to identify the wiring position, prevent incorrect or reverse connection, and improve the convenience of operation.

[0043] Alternatively, in other embodiments, the sensor 10 may be provided with a socket, which has a connector that is plugged into the other end of the connecting pin 321. This enables electrical connection between the flow meter connector 30 and the sensor 10, thereby enabling signal transmission between the sensor 10 and the transmitter mechanism 20.

[0044] refer to Figure 1 The two ends of the connecting body 31 are used to connect the sensor 10 and the transmitter mechanism 20 respectively, so as to realize the connection and fixation between the sensor 10 and the transmitter mechanism 20. Optionally, one end of the connecting body 31 can be connected and fixed to the sensor 10 by welding.

[0045] like Figure 1As shown, the sensor 10 may be provided with a support cylinder 11 for connecting to the connecting body 31. The support cylinder 11 has a hollow internal structure, and its hollow internal part can be used for wiring or setting up sockets, etc. One end of the support cylinder 11 is provided with an annular connection port.

[0046] For example, see reference Figure 2 The connection method between the connecting body 31 and the sensor 10 can be as follows: the end of the connecting body 31 used for connecting with the sensor 10 is provided with a connecting slot 313, which allows a portion of the connecting body 31 to be inserted into the connecting port of the support cylinder 11. Furthermore, the surface of the connecting slot 313 can abut against and weld itself to the annular end face of the connecting port along the axial direction.

[0047] like Figure 3 As shown, the connecting notch 313 can be configured as a right-angled notch formed by the inward indentation of the outer edge of the connecting body 31. When the connecting body 31 is connected to the support cylinder 11 of the sensor 10, a portion of the connecting body 31 can be inserted into the connecting port. One side wall of the right-angled notch can abut against the inner wall of the support cylinder 11 at the connecting port, and the other side wall can abut against the annular end face of the connecting port. Thus, through the mutual cooperation of the connecting notch 313 and the connecting port, the connecting body 31 and the support cylinder 11 of the sensor 10 can be relatively fixed in the axial and perpendicular directions. Afterward, the connecting body 31 and the support cylinder 11 can be connected and fixed by welding or other methods.

[0048] In this embodiment, by providing a connection bayonet 313, the connection body 31 can be partially inserted into the connection port of the sensor 10 and abut against each other, thereby better defining the relative position between the connection body 31 and the sensor 10 in the axial and perpendicular directions, and effectively increasing the contact area between the two, which is beneficial to improving the connection reliability between the connection body 31 and the sensor 10.

[0049] Alternatively, in other embodiments, the connecting bayonet 313 can also be configured with a V-shaped cross-section. Or, in other embodiments, the end of the connecting body 31 used to connect with the sensor 10 can be configured as an inclined surface, and adapted to fit and welded to the end face of the support cylinder 11 of the sensor 10. The specific configuration can be determined according to actual needs.

[0050] See Figure 3 Optionally, the other end of the connecting body 31 can be detachably connected and fixed to the transmitter mechanism 20. Specifically, the transmitter or junction box is detachably connected to the connecting body 31. The following description will use the detachable connection between the transmitter and the connecting body 31 as an example.

[0051] The transmitter may include a housing and a mainboard box disposed within the housing. Optionally, the plug 22 of the transmitter mechanism 20 described above may be disposed on the mainboard box.

[0052] like Figure 3 and Figure 4 As shown, the outer casing is provided with a connecting cylinder 21 for connecting with the connecting body 31. The connection method between the connecting body 31 and the transmitter can be: the connecting body 31 is rotatably provided with a connecting nut 311, which is used to thread the connecting cylinder 21, so that the connecting body 31 and the transmitter mechanism 20 are fixed axially.

[0053] The inner hole of the connecting nut 311 is provided with an internal thread, and the outer wall of the connecting cylinder 21 is provided with an external thread. The threaded connection between the connecting nut 311 and the connecting cylinder 21 can be realized through the threaded engagement of the internal thread and the external thread, thereby realizing the connection and fixation between the connecting body 31 and the transmitter.

[0054] Furthermore, a positioning ring 312 protrudes from the outer periphery of the connecting body 31. A connecting nut 311 is sleeved on the outside of the positioning ring 312 and abuts against one side surface of the positioning ring 312. The other side surface of the positioning ring 312 abuts against the end face of the connecting cylinder 21. The outer diameter of the positioning ring 312 is larger than the outer diameter of the connecting body 31. The outer diameter of the positioning ring 312 is approximately equal to the outer diameter of the connecting cylinder 21.

[0055] refer to Figure 3 As shown, the inner hole of the connecting nut 311 may include a first hole section and a second hole section. The diameter of the first hole section is approximately equal to the outer diameter of the locating ring 312, and an internal thread is provided on the inner wall of the first hole section. The diameter of the second hole section is smaller than the outer diameter of the locating ring 312, so that an abutment surface for abutting against the locating ring 312 can be formed between the second hole section and the first hole section.

[0056] In this embodiment, the connecting nut 311 is axially movable and sleeved on the outside of the positioning ring 312. When connecting the connecting body 31 and the connecting cylinder 21 through the connecting nut 311, the connecting nut 311 can be rotated toward the transmitter side until the two side surfaces of the positioning ring 312 abut against the abutment surface of the connecting nut 311 and the end face of the connecting cylinder 21, respectively. At this time, the connecting body 31 and the transmitter mechanism 20 are fixed axially, thereby realizing the axial connection and fixation between the connecting body 31 and the transmitter. The connection form between the connecting nut 311 and the connecting body 31 in this embodiment is simple, which facilitates the replacement of the connecting nut 311 and avoids the risk of having to replace the entire connector due to damage to the connecting nut 311.

[0057] It is understood that in other embodiments, the connecting nut 311 may also be connected to the connecting body 31 in a manner that allows rotation but not axial movement, and the specific configuration can be made according to actual needs.

[0058] See Figure 3 and Figure 4 In one embodiment, a connection hole 314 is provided on the end face of the connecting body 31 facing the transmitter mechanism 20. The connection hole 314 is used to pass through fasteners 23 such as screws. The fasteners 23 are used to connect and fix the main board box of the transmitter mechanism 20 to the connecting body 31.

[0059] In this embodiment, after the connecting body 31 is connected and fixed to the transmitter mechanism 20, the fastener 23 is passed through the main board box inside the transmitter mechanism 20 and fastened to the connecting hole 314 of the connecting body 31. This can achieve relative fixation between the main board box and the connecting body 31, thereby achieving relative fixation between the plug 22 on the main board box and the connecting pin 321 inside the connecting body 31. This is beneficial to improving the reliability of signal transmission between the flow meter connector 30 and the transmitter mechanism 20.

[0060] See Figure 3 In one embodiment, the flow meter connector 30 further includes a seal 34 disposed between the surfaces of the connecting body 31 and the transmitter mechanism 20 that come into contact with each other. For example, the seal 34 may be disposed between the outer peripheral wall of the connecting body 31 and the inner peripheral wall of the connecting cylinder 21.

[0061] Optionally, seal 34 can be an O-ring. (See reference) Figure 3 and Figure 4 An annular mounting groove 315 may be provided on the outer peripheral wall of the portion of the connecting body 31 that extends into the connecting cylinder 21, and an O-ring is installed in the annular mounting groove 315. When the connecting body 31 is connected to the connecting cylinder 21, the O-ring is located between the outer peripheral wall of the connecting body 31 and the inner peripheral wall of the connecting cylinder 21. The O-ring can fill the gap between the two and play a role in sealing and moisture prevention.

[0062] It is understood that in other embodiments, the O-ring seal can also be installed in the annular groove on the inner peripheral wall of the connecting cylinder 21, and the specific configuration can be made according to actual needs.

[0063] See Figures 3 to 5 In one embodiment, the limiting component 33 includes a limiting boss 331 and a limiting groove 332, which are respectively disposed on the surfaces of the connecting body 31 and the transmitter mechanism 20 that are in contact with each other. The limiting boss 331 and the limiting groove 332 engage to prevent relative rotation between the transmitter mechanism 20 and the connecting body 31.

[0064] Optionally, such as Figure 4 and Figure 5 As shown, the limiting groove 332 can be provided on the outer peripheral wall of the connecting body 31. The limiting boss 331 is provided on the inner peripheral wall of the connecting cylinder 21 corresponding to the limiting groove 332. The number of limiting bosses 331 and limiting grooves 332 can be set to multiple, which can be set according to actual needs.

[0065] like Figure 4 As shown, the limiting groove 332 can be configured as a semi-circular or V-shaped shape. The limiting boss 331 can be configured as a block shape that matches the shape of the limiting groove 332, and can be configured as needed.

[0066] In this embodiment, when the connecting body 31 and the connecting cylinder 21 are connected and fixed, the limiting boss 331 can be inserted into the corresponding limiting groove 332, so that the connecting body 31 and the connecting cylinder 21 cannot rotate relative to each other. This keeps the transmitter mechanism 20 and the connecting body 31 from rotating relative to each other, and achieves circumferential limiting and fixing between the transmitter mechanism 20 and the connecting body 31. This effectively prevents the pin damage caused by the rotation of the transmitter mechanism 20 during subsequent use, thereby improving the reliability of the mass flow meter and extending its service life.

[0067] For example, in actual implementation, the connecting body 31 can be inserted into the connecting cylinder 21 first, so that each limiting boss 331 and each limiting groove 332 are aligned and engaged, thereby achieving circumferential limiting and fixing between the transmitter mechanism 20 and the connecting body 31. Then, the connecting nut 311 is rotated towards the transmitter mechanism 20, so that the connecting nut 311 and the connecting cylinder 21 respectively abut against the two sides of the positioning ring 312, thereby achieving axial connection and fixing between the transmitter mechanism 20 and the connecting body 31.

[0068] It is understood that in other embodiments, the positions of the limiting groove 332 and the limiting boss 331 can also be interchanged, that is, the limiting boss 331 can be provided on the outer peripheral wall of the connecting body 31. The limiting groove 332 is provided on the inner peripheral wall of the connecting cylinder 21, corresponding to the limiting boss 331.

[0069] The flow meter connector of this utility model has its two ends connected to a sensor and a transmitter mechanism, respectively, thereby achieving a fixed connection between the sensor and the transmitter mechanism. The connector body contains a connector base with multiple connector pins, each with its two ends electrically connected to the sensor and the transmitter mechanism, enabling signal transmission between them. Furthermore, a limiting component prevents relative rotation between the transmitter mechanism and the connector body, thus achieving circumferential positioning and fixing between them. This effectively prevents pin damage caused by rotation of the transmitter mechanism during subsequent use, thereby improving the reliability of the mass flow meter and extending its service life.

[0070] The flow meter connector of this utility model embodiment is fixed to the sensor by welding, which can ensure reliable connection between the two, improve the sealing performance of the overall structure, improve the reliability of the mass flow meter, and reduce the failure rate of the internal signal transmission circuit.

[0071] The flow meter connector of this utility model embodiment is detachably connected to the transmitter mechanism, which facilitates the disassembly, assembly, maintenance and replacement of the transmitter mechanism, and makes it easy for the flow meter connector to connect to the transmitter or junction box to suit different application scenarios, thereby improving the flexibility and adaptability of the mass flow meter.

[0072] The flow meter connector of this utility model embodiment has a sealing element between the flow meter connector and the transmitter mechanism, which can ensure the sealing performance between the two, improve the reliability of the mass flow meter, and reduce the failure rate of the internal signal transmission circuit.

[0073] The flowmeter connector of this embodiment, by providing multiple connecting pins, facilitates accurate and rapid electrical connection between the flowmeter connector and the sensor and transmitter mechanism. The multiple connecting pins are arrayed and arranged in a non-rotationally symmetrical pattern. When the flowmeter connector and transmitter mechanism are electrically connected by plugging the multiple connecting pins into multiple connectors, operational errors can be prevented, incorrect or reversed insertions can be avoided, and operational convenience can be improved. When the flowmeter connector and sensor are electrically connected by soldering wires to the multiple connecting pins, it is easier to identify the wiring position, prevent incorrect or reversed connections, and improve operational convenience.

[0074] Since the flow meter connector has the above-mentioned beneficial effects, the mass flow meter containing the flow meter connector also has the corresponding beneficial effects, which will not be elaborated here.

[0075] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0076] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A flow meter connector, characterized in that, include: The connecting body has a connecting cavity inside, and the two ends of the connecting body are respectively used to connect to the sensor and the transmitter mechanism; A connector is connected to the connector body and located inside the connector cavity. A plurality of connector pins are fixedly inserted on the connector, and the two ends of the connector pins protrude from the two side surfaces of the connector to be electrically connected to the sensor and the transmitter mechanism, respectively. A limiting component is disposed between the connecting body and the transmitting mechanism, the limiting component being used to prevent relative rotation between the transmitting mechanism and the connecting body when the connecting body is connected to the transmitting mechanism.

2. The flow meter connector according to claim 1, characterized in that, The connection body and the transmitter mechanism are detachably connected; The connecting body is rotatably provided with a connecting nut, which is used to connect with the connecting cylinder of the transmitter mechanism by thread, so that the connecting body and the transmitter mechanism are fixed along the axial direction.

3. The flow meter connector according to claim 2, characterized in that, The outer periphery of the connecting body is provided with a positioning ring. The connecting nut is sleeved on the outside of the positioning ring and can abut against one side surface of the positioning ring. The other side surface of the positioning ring can abut against the end face of the connecting cylinder of the transmitter mechanism.

4. The flow meter connector according to claim 1, characterized in that, It also includes a seal disposed between the surfaces of the connecting body and the transmitter mechanism that come into contact with each other.

5. The flow meter connector according to claim 1, characterized in that, The limiting component includes a limiting boss and a limiting groove. The limiting boss and the limiting groove are respectively provided on the surfaces of the connecting body and the transmitting mechanism that are in contact with each other. The limiting boss and the limiting groove are engaged to prevent the transmitting mechanism and the connecting body from rotating relative to each other.

6. The flow meter connector according to claim 1, characterized in that, The connection body and the sensor are connected by welding. The end of the connecting body used to connect with the sensor is provided with a connecting bayonet. The connecting bayonet allows a portion of the connecting body to be inserted into the connection port of the sensor. The surface of the connecting bayonet is used to abut against and weld to the end face of the connection port of the sensor along the axial direction.

7. The flow meter connector according to claim 1, characterized in that, One end of the connecting pin is plugged into the connector of the transmitter mechanism; The connecting body has a connecting hole on its end face facing the transmitter mechanism. The connecting hole is used to insert a fastener, which is used to connect the main board of the transmitter mechanism to the connecting body.

8. The flow meter connector according to claim 1, characterized in that, The array of multiple connecting pins is distributed and the edge shape of the orthographic projection on the connector is a non-rotationally symmetric figure.

9. The flow meter connector according to claim 1, characterized in that, The connector is made of insulating material, and its outer peripheral surface is adapted to fit and fix the inner peripheral surface of the connecting cavity inside the connecting body.

10. A mass flow meter, characterized in that, It includes a sensor, a transmitter, and a flow meter connector as described in any one of claims 1-9, wherein the sensor and the transmitter are connected via the flow meter connector.

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