Liquid flow sensor

Abstract

The liquid flow sensor comprises a shell and a detection assembly, the shell comprises a detection channel and an installation groove body, the detection channel is arranged above the installation groove body, the detection channel and the installation groove body are integrally formed, the lower portion of the detection channel is provided with a detection hole communicated with the installation groove body, and the detection hole is communicated with the installation groove body. According to the liquid flow sensor, the shell is integrally formed, the size is small, the manufacturing difficulty and cost are reduced, the overall structural stability of the liquid flow sensor is guaranteed, meanwhile, the product size can be customized according to the use condition, and the liquid flow sensor is suitable for different application scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid flow detection, and in particular to a liquid flow sensor. Background Art

[0002] In the prior art, many devices require liquid flow sensors to detect the liquid flow status in the pipeline during operation, and then send signals to the device host based on the liquid flow status, so that it can take corresponding measures to ensure the effective operation of the equipment and increase its service life. The existing liquid flow sensors on the market mainly adopt a combination of multiple shells, which requires multiple molding and assembly steps, resulting in a long production cycle and low production efficiency. At the same time, multiple assemblies may also affect the firmness and stability of the product. Utility Model Content

[0003] In view of the problems of long production cycle, low production efficiency, and low product firmness and stability caused by multiple molding and assembly in the prior art liquid flow sensors, the utility model proposes a liquid flow sensor including an integrally molded shell to solve the above problems.

[0004] The utility model proposes a liquid flow sensor, comprising a shell and a detection component, the shell comprising a detection channel and a mounting groove body, the detection channel is arranged above the mounting groove body, and the detection channel and the mounting groove body are integrally formed, a detection hole connected to the mounting groove body is opened at the lower part of the detection channel, and the detection component is detachably arranged in the mounting groove body.

[0005] In a specific embodiment, a stabilizing support portion is further provided at the connection between the detection channel and the mounting slot body, and this structure is beneficial to improving the structural stability of the detection channel and the mounting slot body after being integrally formed.

[0006] In a specific embodiment, pipeline interfaces are provided at both ends of the detection channel, and the inner diameter of the pipeline interface is equal to the inner diameter of the detection channel.

[0007] In a specific embodiment, the cross-sectional area of ​​the pipeline interface gradually decreases from an end close to the detection channel to an end far from the detection channel. Use of this structure facilitates close cooperation between the external pipeline and the liquid flow sensor.

[0008] In a specific embodiment, the detection hole is chamfered on the end surface of the installation slot, and reinforcing ribs are arranged around the chamfer. This structure is conducive to ensuring the stability of the overall structure after the detection hole is opened in the detection channel and the installation slot.

[0009] In a specific embodiment, staggered fixing buckles are provided on both sides of the interior of the installation slot.

[0010] In a specific embodiment, the detection component includes a detection probe and a PCB circuit board. The detection probe is connected to the PCB circuit board and penetrates the detection hole into the detection channel.

[0011] In a specific embodiment, the PCB circuit board is installed in the installation slot.

[0012] In a specific embodiment, a capacitive liquid level detection chip is also installed on the PCB circuit board.

[0013] In a specific embodiment, the detection probe is made of a corrosion-resistant metal material. The corrosion-resistant metal material ensures that the detection probe is not corroded or oxidized during long-term operation. This setting can increase the service life of the detection probe.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The utility model mainly solves the problem that the existing liquid flow sensor housing is mainly assembled and spliced ​​through multiple shells, which leads to long production cycle, low production efficiency, and low product firmness and stability. The shell of the liquid flow sensor of the present application is integrally formed, with a small volume, which reduces the manufacturing difficulty and cost and ensures the overall structural stability of the liquid flow sensor. At the same time, the product size can be customized according to usage to adapt to different application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the utility model. It will be easy to recognize many expected advantages of other embodiments and embodiments because they become better understood by reference to the following detailed description. The elements of the accompanying drawings are not necessarily in proportion to each other. The same reference numerals refer to corresponding similar parts.

[0017] Figure 1 is an exploded schematic diagram of a liquid flow sensor according to an embodiment of the utility model;

[0018] Figure 2 This is a view of a liquid flow sensor facing a detection channel according to a specific embodiment of the utility model;

[0019] Figure 3 It is a schematic AA cross-sectional view of a liquid flow sensor according to a specific embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the housing structure of a liquid flow sensor according to a specific embodiment of the utility model;

[0021] Figure 5 This is a bottom view of a housing of a liquid flow sensor according to a specific embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of a detection component of a liquid flow sensor according to a specific embodiment of the utility model.

[0023] The meaning of the numbers in the figure:

[0024] Shell 10, detection channel 11, mounting slot 12, pipeline interface 13, stable support part 14, detection hole 15, fixing buckle 16, reinforcing rib 17, detection component 20, detection probe 21, PCB circuit board 22, capacitive liquid level detection chip 23. DETAILED DESCRIPTION

[0025] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be practiced. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0026] The utility model proposes a liquid flow sensor. Figure 1 FIG. 1 shows an exploded schematic diagram of a liquid flow sensor according to an embodiment of the present utility model. Figure 1 As shown, the liquid flow sensor includes a housing 10 and a detection assembly 20. The housing 10 is formed by integrally forming a detection channel 11 and a mounting groove 12. The detection assembly 20 is detachably arranged on the mounting groove 12. Figure 2-6 Detailed description of the application.

[0027] Figure 2 This is a view of a liquid flow sensor facing a detection channel according to a specific embodiment of the utility model. Figure 3 FIG. 2 is a schematic cross-sectional view of a liquid flow sensor according to a specific embodiment of the present utility model taken along the line AA. Figure 2-3 As shown, the housing 10 cooperates with the detection assembly 20 , the detection probe 21 penetrates into the detection channel 11 from the detection hole 15 , and the PCB circuit board 22 is fixed inside the mounting slot 12 by the fixing buckle 16 .

[0028] In a specific embodiment, raised pipe interfaces 13 are provided at both ends of the detection channel 11, and the inner diameters of the detection channel 11 and the pipe interface 13 are the same. At the same time, the cross-sectional area of ​​the pipe interface 13 gradually decreases from the end close to the detection channel 11 to the end far from the detection channel 11.

[0029] In a specific embodiment, the inner diameter of the detection channel includes but is not limited to 2.8 mm and 4 mm, and can be customized to suit different usage scenarios.

[0030] In a specific embodiment, the pipeline interface 13 cooperates with the external pipeline, the detection probe 21 detects and feeds back the liquid flow state in the detection channel 11 to the capacitive liquid level detection chip 23 on the PCB circuit board 22, and the capacitive liquid level detection chip 23 converts the liquid flow state into a signal and sends it to the device host, so that it can take corresponding measures.

[0031] Figure 4 is a schematic diagram of a housing structure of a liquid flow sensor according to a specific embodiment of the utility model, such as Figure 4 As shown, the detection channel 11 is arranged above the mounting groove body 12, and the detection channel 11 and the mounting groove body 12 are integrally formed. A stabilizing support portion 14 is also provided at the connection between the detection channel 11 and the mounting groove body 12 to ensure the structural stability of the integrally formed rear shell 10.

[0032] Figure 5 FIG. 1 is a bottom view of a housing of a liquid flow sensor according to a specific embodiment of the present utility model, as shown in FIG. Figure 5 As shown, a detection hole 15 communicating with the detection channel 11 is provided on the mounting groove 12 , and a chamfer is provided on the detection hole 15 , and reinforcing ribs 17 are provided around the chamfer, thereby improving the structural stability of the housing 10 after the detection hole 15 is provided.

[0033] In a specific embodiment, fixing buckles 16 for fixing the detection component 20 are further provided on both sides of the interior of the installation slot 12 , and the fixing buckles 16 on both sides are staggered, which can ensure a tight fit between the detection component 20 and the installation slot 12 .

[0034] In a specific embodiment, there is no limitation on the size of the mounting slot 12 , and the size of the mounting slot 12 can be customized according to the usage and the size of the detection component 20 .

[0035] Figure 6 FIG. 1 is a schematic diagram of a detection component structure of a liquid flow sensor according to a specific embodiment of the present utility model, such as Figure 6As shown, the detection component 20 includes a detection probe 21, a PCB circuit board 22 and a capacitive liquid level detection chip 23. The detection probe 21 and the capacitive liquid level detection chip 23 are connected to the PCB circuit board 22. The capacitive liquid level detection chip 23 is arranged on the side opposite to the detection probe 21. The liquid flow state in the detection channel 11 is fed back to the capacitive liquid level detection chip 23 through the detection probe 21, and then converted into a signal by the capacitive liquid level detection chip 23 and sent to the device host.

[0036] In a specific embodiment, the detection probe 21 is made of corrosion-resistant metal materials including but not limited to stainless steel, pure titanium, titanium alloy, and nickel-titanium alloy, to ensure the corrosion resistance and oxidation resistance of the detection probe 21 in different solutions and to improve the service life of the detection probe.

[0037] In a specific embodiment, the capacitive liquid level detection chip 23 is a SC01B capacitive liquid level detection chip.

[0038] In a specific embodiment, the capacitive liquid level detection chip 23 on the PCB circuit board can be customized according to the parameter requirements of different solutions and equipment, thereby customizing the capacitive liquid level detection chip 23.

[0039] The utility model mainly solves the problem that the existing liquid flow sensor housing is mainly assembled and spliced ​​through multiple shells, which leads to long production cycle, low production efficiency, and low product firmness and stability. The shell of the liquid flow sensor of the present application is integrally formed, with a small volume, which reduces the manufacturing difficulty and cost and ensures the overall structural stability of the liquid flow sensor. At the same time, the product size can be customized according to usage to adapt to different application scenarios.

[0040] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any figure mark in the claims should not be considered to limit the scope.

Claims

1. A liquid flow sensor, characterized in that: It includes a shell and a detection component, the shell includes a detection channel and a mounting groove body, the detection channel is arranged above the mounting groove body, and the detection channel and the mounting groove body are integrally formed, and a stabilizing support portion is also provided at the connection between the detection channel and the mounting groove body; a detection hole connected to the mounting groove body is opened at the lower part of the detection channel, the detection component is detachably arranged in the mounting groove body, and fixing buckles for fixing the detection component are also staggered on both sides of the interior of the mounting groove body.

2. A liquid flow sensor according to claim 1, characterized in that: Pipe interfaces are provided at both ends of the detection channel, and the inner diameter of the pipe interfaces is equal to the inner diameter of the detection channel.

3. A liquid flow sensor according to claim 2, characterized in that: The cross-sectional area of ​​the pipeline interface gradually decreases from an end close to the detection channel to an end far away from the detection channel.

4. A liquid flow sensor according to claim 1, characterized in that: The detection hole is provided with a chamfer on the end surface of the installation slot body, and reinforcing ribs are arranged around the chamfer.

5. A liquid flow sensor according to claim 1, characterized in that: The detection component comprises a detection probe and a PCB circuit board. The detection probe is connected to the PCB circuit board and penetrates the detection hole into the detection channel.

6. A liquid flow sensor according to claim 5, characterized in that: The PCB circuit board is installed in the installation slot body.

7. A liquid flow sensor according to claim 5, characterized in that: A capacitive liquid level detection chip is also installed on the PCB circuit board.

8. A liquid flow sensor according to claim 5, characterized in that: The material of the detection probe includes one of stainless steel, pure titanium, titanium alloy, and nickel-titanium alloy.

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