Coil support fixing structure for mass flow sensor

Abstract

The utility model relates to the field of mass flow meters, and discloses a fixing structure for a mass flow sensor coil support, which comprises a measuring tube, a fixing support, a magnet seat and a detection coil. The fixed bracket is detachably mounted on the two measuring tubes; the magnet seat and the detection coil are integrally mounted between the two fixed brackets; wherein the magnet seat is used for driving the measuring tube to vibrate according to the inherent frequency of the measuring tube, and the detection coil is used for monitoring the vibration state, the vibration amplitude and the vibration period of the measuring tube. By changing the material and the fixing mode of the fixing supports, the two fixing supports, the magnet base and the detection coil are fixed through screws and nuts, and at least the problem that brazed supports between the measuring tubes on the flow sensor cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the field of mass flow meters, in particular to a bracket fixing structure for fixing a coil of a mass flow sensor. Background Art

[0002] Currently, the mounting brackets for the detection coil and drive coil between the measuring tubes of flow sensors are made of sheet metal and secured to the measuring tubes by brazing. This results in a complex and time-consuming production process, and the brazing process can also create a risk of deformation. Once brazing is complete, the brackets cannot be adjusted, resulting in the bracket becoming scrapped if the coils become misaligned during installation. Utility Model Content

[0003] The main purpose of the utility model is to provide a coil bracket fixing structure for a mass flow sensor, so as to at least solve the problem that the brackets brazed between measuring tubes on the current flow sensor cannot be adjusted.

[0004] In order to achieve the above-mentioned objectives, the utility model provides a coil bracket fixing structure for a mass flow sensor, comprising: two measuring tubes; a fixing bracket, detachably mounted on the two measuring tubes; a magnet base and a detection coil, wherein the magnet base and the detection coil are integrally mounted between the two fixing brackets; wherein the magnet base is used to drive the measuring tubes to vibrate according to their natural frequency, and the detection coil is used to monitor the vibration state, vibration amplitude and vibration period of the measuring tubes.

[0005] The fixed bracket includes: a first fixed plate, the magnet seat and the detection coil are integrally installed between the fixed first fixed plates of the two fixed brackets; a second fixed plate, there are two second fixed plates, the two second fixed plates are arranged opposite to each other and vertically connected to the first fixed plate; wherein a fixed slot is formed between the two second fixed plates, and the measuring tube is fixedly installed in the fixed slot.

[0006] The first fixing plate is provided with a mounting hole, and the magnet base and the detection coil are provided with corresponding mounting holes. The first fixing plate is fixed to the magnet base and the detection coil through the mounting holes and screws and nuts.

[0007] Four opposite mounting holes are provided on the two second fixing plates, and the two second fixing plates are fixed by clamping the mounting holes and screws and nuts.

[0008] Furthermore, the fixing bracket and the measuring tube are detachably bonded with special glue.

[0009] Furthermore, a protruding magnet is installed in the middle of the magnet seat. When the magnet seat is energized, a changing first magnetic field is generated. The first magnetic field interacts with the second magnetic field generated by the magnet to generate a driving force, which causes the measuring tube to vibrate.

[0010] Furthermore, the magnet base and the detection coil work together to convert mechanical vibration into electrical signal output after power is applied.

[0011] The first fixing plate is placed horizontally, the middle of the first fixing plate is a rectangle, and both ends are rounded triangles, and a mounting hole is respectively opened in the middle of the two rounded triangles.

[0012] The second fixing plate and the fixing slot are arranged in a vertical direction. The second fixing plate is rectangular, and an opening is provided on the surface where the fixing slot and the second fixing plate are connected.

[0013] The inner wall of the fixing groove matches the shape of the tube surface of the flow tube.

[0014] The utility model utilizes a coil bracket fixing structure for a mass flow sensor, comprising a measuring tube, a fixing bracket, a magnet holder, and a detection coil. The fixing bracket is detachably mounted on two measuring tubes, and the magnet holder and detection coil are integrally mounted between the two fixing brackets. The magnet holder drives the measuring tube to vibrate at its natural frequency, and the detection coil monitors the vibration state, amplitude, and period of the measuring tube. By changing the material and fixing method of the fixing brackets, the two fixing brackets are secured to the magnet holder and detection coil via screws and nuts, thereby resolving the issue of the inability to adjust the brazed brackets between the measuring tubes of a flow sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a structural diagram of an optional fixing structure for a coil support of a mass flow sensor according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of a fixing support that can be used for the fixing structure of the coil bracket of a mass flow sensor according to an embodiment of the present utility model.

[0018] The above drawings include the following reference numerals:

[0019] 10. Fixed bracket; 11. First fixed plate; 12. Second fixed plate; 20. Magnet base; 30. Detection coil; 40. Measuring tube. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] According to an embodiment of the present invention, a coil support fixing structure for a mass flow sensor is provided. Figure 1 As shown, the flow sensor comprises a measuring tube 40, a fixing bracket 10, a magnet base 20, and a detection coil 30. The fixing bracket 10 is detachably mounted on the two measuring tubes 40. The magnet base 20 and the detection coil 30 are integrally mounted between the two fixing brackets 10. The magnet base 20 is used to drive the measuring tube 40 to vibrate at its natural frequency, and the detection coil 30 is used to monitor the vibration state, amplitude, and period of the measuring tube 40. By changing the material and fixing method of the fixing bracket 10, the two fixing brackets 10 are fixed to the magnet base 20 and the detection coil 30 using screws and nuts. This at least solves the problem of the brazed brackets between the measuring tubes 40 on the flow sensor being unable to be adjusted.

[0022] When implementing it specifically, Figure 1 As shown, the fixing bracket 10 is formed by plastic injection molding and is fixed to the measuring tube 40 by nuts and special glue. The fixing bracket 10 is formed by plastic injection molding to improve production efficiency.

[0023] Furthermore, if Figure 1 As shown, the fixed bracket 10 includes a first fixed plate 11 and a second fixed plate 12; the magnet base 20 and the detection coil 30 are integrally installed between the fixed first fixed plates 11 of the two fixed brackets 10; there are two second fixed plates 12, and the two second fixed plates 12 are arranged opposite to each other and vertically connected to the first fixed plate 11; wherein a fixed slot is formed between the two second fixed plates 12, and the measuring tube 40 is fixedly installed in the fixed slot.

[0024] Furthermore, if Figure 1 and Figure 2 As shown, the first fixing plate 11 has mounting holes, and the magnet base 20 and detection coil 30 have corresponding mounting holes. The first fixing plate 11 is secured to the magnet base 20 and detection coil 30 using the mounting holes and screws and nuts. The screws and nuts used to secure the first fixing plate 11 to the magnet base 20 and detection coil 30 are removable, and disassembly does not affect the use of the measuring tube 40. Securing the first fixing plate 11 to the magnet base 20 and detection coil 30 is the first step.

[0025] Furthermore, if Figure 2 As shown, four mounting holes are provided on the two second fixing plates 12, and the two second fixing plates are fixed by clamping the mounting holes and screws and nuts. Fixing the two second fixing plates is the second step.

[0026] Furthermore, if Figure 1 As shown, the fixing slots of the fixing bracket 10 and the measuring tube 40 are removably bonded together using a special adhesive. This special adhesive prevents damage to the measuring tube 40 when the fixing bracket 10 is removed, minimizing the risk of damage. The third fixing step is to glue the fixing bracket 10 and the measuring tube 40 together.

[0027] Furthermore, through the above three fixing steps, the fixing bracket 10 is firmly fixed to the measuring tube 40, the magnet base 20, and the detection coil 30, and the measuring tube 40, the magnet base 20 and the detection coil 30 will not be damaged when the fixing bracket 10 is disassembled.

[0028] Furthermore, if Figure 1 As shown, a protruding magnet is installed in the middle of the magnet base 20. When in use, the magnet is inserted into the detection coil 30. When the magnet base 20 is energized, an alternating first magnetic field will be generated. The magnet will generate a second magnetic field in the detection coil 30 by itself. The interaction between the first magnetic field and the second magnetic field will generate a driving force, which causes the measuring tube 40 to vibrate.

[0029] Furthermore, the magnet base 20 and the detection coil 30 work together to convert mechanical vibration into an electrical signal output after power is applied.

[0030] Furthermore, the mechanical vibration is transmitted to the magnet holder 20. As the mechanical vibration is transmitted, the magnetism of the magnet holder 20 changes, causing the magnetic flux in the detection coil 30 to change. When the magnetic flux changes, an induced electromotive force is generated in the detection coil 30. This induced electromotive force is the electrical signal converted from the mechanical vibration, thus achieving the conversion of mechanical vibration into an electrical signal.

[0031] Furthermore, if Figure 1 and Figure 2 As shown, the first fixing plate 11 is placed horizontally. The middle of the first fixing plate 11 is a rectangle, and the two ends are rounded triangles. A mounting hole is provided in the middle of each of the two rounded triangles. The first fixing plate 11 adopts the shape of rounded triangles at both ends to save material and avoid material waste.

[0032] Furthermore, if Figure 1 and Figure 2 As shown, the second fixing plate 12 and the fixing slot are arranged vertically. The second fixing plate 12 is rectangular, and an opening is provided at the surface where the fixing slot connects to the second fixing plate 12. The opening is slightly smaller than the diameter of the fixing slot. When installing the fixing bracket 10, the fixing slot of the fixing bracket 10 is inserted into the top of the measuring tube 40. After the position is determined, the fixing bracket 10 is secured with screws and nuts to prevent it from sliding.

[0033] Furthermore, if Figure 1 and Figure 2 As shown, the inner wall of the fixing slot matches the shape of the measuring tube 40, so that the fixing bracket 10 fits the measuring tube 40 more closely during installation, thereby improving the measurement accuracy of the flow meter.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coil support fixing structure for a mass flow sensor, characterized in that: include: two measuring tubes (40); A fixed bracket (10) detachably mounted on the two measuring tubes (40); a magnet base (20) and a detection coil (30), wherein the magnet base (20) and the detection coil (30) are integrally mounted between the two fixing brackets (10); The magnet seat (20) is used to drive the measuring tube (40) to vibrate at its natural frequency, and the detection coil (30) is used to monitor the vibration state, vibration amplitude, and vibration period of the measuring tube (40).

2. A mass flow sensor coil support fixing structure according to claim 1, characterized in that: The fixing bracket (10) comprises: A first fixing plate (11), the magnet seat (20) and the detection coil (30) are integrally mounted between the first fixing plates (11) of the two fixing brackets (10); a second fixing plate (12), wherein there are two second fixing plates (12), the two second fixing plates (12) being arranged opposite to each other and vertically connected to the first fixing plate (11); A fixed slot is formed between the two second fixing plates (12), and the measuring tube (40) is fixedly installed in the fixed slot.

3. A mass flow sensor coil support fixing structure according to claim 2, characterized in that: The first fixing plate (11) is provided with a mounting hole, and the magnet base (20) and the detection coil (30) are provided with corresponding mounting holes, and the first fixing plate (11) is fixed to the magnet base (20) and the detection coil (30) through the mounting holes and screws and nuts.

4. The fixing structure for a coil support of a mass flow sensor according to claim 2, characterized in that: Four opposing mounting holes are provided on the two second fixing plates (12), and the two second fixing plates (12) are fixed by clamping the mounting holes and screws and nuts.

5. The coil support fixing structure for a mass flow sensor according to claim 1, characterized in that: The fixing slots between the fixing brackets (10) and the measuring tube (40) are detachably bonded using special glue.

6. The coil support fixing structure for a mass flow sensor according to claim 1, characterized in that: A protruding magnet is installed in the middle of the magnet seat (20). When the magnet seat (20) is energized, a changing first magnetic field is generated. The first magnetic field interacts with a second magnetic field generated by the magnet to generate a driving force, which causes the measuring tube (40) to vibrate.

7. The coil support fixing structure for a mass flow sensor according to claim 1, characterized in that: The magnet base (20) and the detection coil (30) work together to convert mechanical vibration into an electrical signal for output when energized.

8. The coil support fixing structure for a mass flow sensor according to claim 2, characterized in that: The first fixing plate (11) is placed horizontally, the middle of the first fixing plate (11) is a rectangle, and both ends are rounded triangles, and a mounting hole is provided in the middle of each of the two rounded triangles.

9. The coil support fixing structure for a mass flow sensor according to claim 2, characterized in that: The second fixing plate (12) and the fixing slot are arranged in a vertical direction, the second fixing plate (12) is rectangular, and an opening is provided on the surface where the fixing slot and the second fixing plate (12) are connected.

10. The coil support fixing structure for a mass flow sensor according to claim 1, characterized in that: The inner wall of the fixing groove matches the shape of the tube surface of the measuring tube (40).

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