Flow sensor with side-out wire

Abstract

The utility model provides a flow sensor with a side-out conducting wire, which is characterized by comprising a lower shell, an upper cover, a flow sensor and a flow sensor, a sensor chip and a PCB (Printed Circuit Board) are arranged in the lower shell; and a lead is welded on the PCB and penetrates out of the side surface of the upper cover. The wire is led out from the side surface and has a fixed installation position, and an upper cover is arranged to play a protection role.

Description

Technical Field

[0001] The utility model relates to a flow sensor with a side-outlet wire. Background Art

[0002] At present, most of the measuring sensors adopt the appearance structure of encapsulating the plane with vertical wire lead-out. During the long-term use of the sensor, there will be external moisture invasion, external force damage and installation needs. Therefore, a measuring sensor with wire lead-out from the side and covered is designed. Utility Model Content

[0003] The utility model aims at the above problems existing in the prior art and proposes a flow sensor with a side-outlet wire. The wire is led out from the side and has a fixed installation position. An upper cover is provided to play a protective role.

[0004] The purpose of the utility model can be achieved by the following technical solutions: a flow sensor with a side-outlet wire, characterized in that it comprises:

[0005] a lower shell, the upper cover of which is provided with an upper cover;

[0006] A sensor chip and a PCB board are arranged in the lower shell, and wires are welded on the PCB board and pass through the side of the upper cover.

[0007] Furthermore, a glue injection hole is provided on the upper cover.

[0008] Furthermore, a sealing exhaust hole is provided on the upper cover.

[0009] Furthermore, a threading hole is opened in the middle of the upper cover, the upper cover surface has a clamping groove for the wire to be clamped, and the upper cover side has a first protrusion connected to the clamping groove. The wire passes through the threading hole and is embedded in the clamping groove and passes through the first protrusion.

[0010] Furthermore, a second protrusion is opened on the side surface of the upper cover, and the wire passes through the second protrusion.

[0011] Furthermore, the lower half of the lower shell is stepped and a rubber ring is provided there.

[0012] Furthermore, the cross section of the rubber ring is angled.

[0013] Compared with the prior art, the advantages of the present application are: the wires are led out from the side, have a fixed installation position, and an upper cover is provided to play a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of Embodiment 1;

[0015] Figure 2is a cross-sectional schematic diagram of embodiment 1;

[0016] Figure 3 This is a schematic diagram of removing the wire in Embodiment 1;

[0017] Figure 4 is a schematic diagram of Embodiment 2;

[0018] Figure 5 This is a schematic diagram of the sensor installation.

[0019] Figure 6 This is the top view of the sensor installation.

[0020] Figure 7 It is another structural diagram of the rubber ring.

[0021] In the figure, 1, upper cover; 101, threading hole 11, glue filling hole; 12, potting exhaust hole; 13, lower shell; 131, rubber ring; 14, wire; 15, first protrusion; 16, card embedding groove; 17, second protrusion; 2, chip; 3, PCB board. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0023] Embodiment 1

[0024] like Figure 1 , 2 , 3, 5, and 6, a flow sensor with a side-outlet wire, characterized in that it comprises:

[0025] The lower shell 13 is provided with an upper cover 1;

[0026] The lower shell 13 is provided with a sensor chip 2 and a PCB board 3 . A wire 14 is welded on the PCB board 3 and the wire 14 passes through a side surface of the upper cover 1 .

[0027] Furthermore, a glue injection hole 11 is provided on the upper cover 1 .

[0028] Furthermore, a sealing exhaust hole 12 is provided on the upper cover 1 .

[0029] Furthermore, a threading hole 101 is opened in the middle of the upper cover 1, and a clamping groove 16 for the wire 14 to be clamped is provided on the surface of the upper cover 1. A first protrusion 15 connected to the clamping groove 16 is provided on the side of the upper cover 1. The wire 14 passes through the threading hole 101 and is embedded in the clamping groove 16 and passes through the first protrusion 15.

[0030] The sensor wire 14 is led out from the side and has a fixed installation position, which is convenient for unifying the direction when the sensor is installed, and is conducive to higher performance consistency when the sensor is used; the sensor is provided with an upper cover 1, which is conducive to further protection and further preventing the intrusion of water vapor in the environment.

[0031] Threading side lead structure: After the sensor chip 2 and other internal components are assembled, the welded wire 14 is passed through the threading hole 101 in the middle of the upper cover 1 and pressed into the first protrusion 15, and then the potting glue is injected into the glue hole 11 of the upper cover 1 after buckling to fill the internal space of the sensor. After the potting glue is cured, the sensor is completed.

[0032] Furthermore, the lower half of the lower shell 13 is stepped and is provided with a rubber ring 131. The rubber ring 131 blocks water vapor from entering to play a sealing role and reduces the direct friction loss between the lower shell 13 and the pipe body. The design of the rubber ring 131 makes the contact surface larger and the extrusion more sufficient, so that a better sealing effect can be obtained. In addition, the rubber ring 131 is in the shape of a conical flat pad, so it is not easy for the rubber ring to fall into the pipe section when placed, and it is easier to align the installed sensor, which can improve the production efficiency of the installation.

[0033] Embodiment 2

[0034] like Figure 4 As shown, further, a second protrusion 17 is opened on the side of the upper cover 1, and the wire 14 passes through the second protrusion 17.

[0035] like Figure 7 As shown, the cross section of the rubber ring 131 is in an angled shape. The rubber ring 131 is in an angled flat pad shape, and the rubber ring 131 of this shape fits the installation position of the lower shell 13 and the tube body more closely. Similarly, in the first embodiment, the design of the rubber ring 131 makes the contact surface larger and the extrusion more sufficient, so that a better sealing effect can be obtained. Moreover, the rubber ring 131 is in an angled flat pad shape, so it is not easy for the rubber ring to fall into the pipe section when placed, and it is easier to align the installed sensor, which can improve the production efficiency of the installation.

[0036] The side lead-out structure of the crimping type: After the sensor chip 2 and other internal components are assembled, the welded wire 14 is led out from the second protrusion 17 on the side after the lower shell 13 and the upper cover 1 are covered. On the premise of determining the wire diameter of the wire 14, the buckled upper cover 1 and lower shell 13 just clamp the wire 14. In order to prevent glue leakage between the wire 14 and the lower shell 13 during potting, a small amount of sealant can be applied. After the buckling is completed, the potting glue is injected into the glue hole 11 of the upper cover 1. After the potting glue is cured, the sensor is completed.

[0037] The technical solution of the above utility model provides a solution that is significantly different from the prior art to address the technical problem that the prior art solution is too single. The parts not involved in the technical solution of this application are the same as the prior art or can be implemented by using the prior art and will not be described in detail.

[0038] The technical solutions in the above embodiments have clearly and completely described the contents of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A flow sensor with a side-outlet wire, characterized in that: It includes: a lower shell having an upper cover provided thereon; The lower shell is provided with a sensor chip and a PCB board, the PCB board is welded with wires and the wires pass through the side of the upper cover; The upper cover is provided with a sealing exhaust hole; A threading hole is provided in the middle of the upper cover, a clamping groove for the wire to be clamped on the surface of the upper cover, a first protrusion connected to the clamping groove is provided on the side of the upper cover, and the wire passes through the threading hole and is embedded in the clamping groove and passes through the first protrusion.

2. A flow sensor with a side-outlet wire according to claim 1, characterized in that: The upper cover is provided with a glue injection hole.

3. A flow sensor with a side-outlet wire according to claim 1, characterized in that: A second protrusion is provided on the side surface of the upper cover, and the wire passes through the second protrusion.

4. A flow sensor with a side-outlet wire according to claim 1, characterized in that: The lower half of the lower shell is in a stepped shape, and a rubber ring is arranged at the position where the lower half of the lower shell directly rubs against the tube body, and the cross section of the rubber ring is elliptical.

5. A flow sensor with a side-outlet wire according to claim 4, characterized in that: The cross section of the rubber ring is in a folded angle shape.

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