CN219495379U - Liquid level sensor of diffused silicon pressure detection circuit - Google Patents

Abstract

The utility model belongs to the technical field of liquid level sensors, in particular to a liquid level sensor of a diffused silicon pressure detection circuit, which comprises a sensor body, a sealing cover and a wire assembly, wherein a connecting end plate connected with the sealing cover is arranged at the upper part of the sensor body, a wire connecting groove arranged at the middle position of the connecting end plate is matched with a conductive contact at the lower part of the wire assembly, and a cover cap of the sealing cover is covered outside a limiting block externally connected with a lead outside package on the wire assembly. According to the utility model, the external lead connected to the sensor is connected in an inserting mode, meanwhile, the sealing cover is arranged at the connecting position, the butt joint line position is sealed, stable connection of the external lead is ensured, normal use is ensured, when the damaged lead is required to be maintained and replaced, the sealing cover is only required to be detached, a new lead assembly is replaced and inserted at the original wiring position, and the sealing cover is arranged.

Description

Liquid level sensor of diffused silicon pressure detection circuit

Technical Field

The utility model relates to the technical field of liquid level sensors, in particular to a liquid level sensor of a diffused silicon pressure detection circuit.

Background

Currently, the main flow level sensor detects according to the water pressure change when measuring the water level, that is, the hydraulic level sensor can be regarded as a pressure sensor used in a specific environment. In the early days, most pressure sensors used mechanical transmission type structures, the deformation of the elastic element was used for indicating the pressure, but the structure has large size and heavy weight, and cannot provide electrical output. With the development of semiconductor technology, today's pressure sensors generally employ piezoelectric sensors.

The piezoelectric sensor is a sensor based on piezoelectric effect, and its sensitive element is made of piezoelectric material. The piezoelectric material generates electric charge on the surface after being stressed, and the electric charge is directly proportional to the electric quantity output of the external force after being amplified and transformed by the electric charge amplifier and the measuring circuit. However, the current sensor can connect an external lead wire for transmitting electric signals in the use process, is used for transmitting detected signals, and the position of the external lead wire led out of the sensor is easy to damage, so that the sensor cannot be used normally, and the external lead wire is inconvenient to maintain and replace and inconvenient to use because of the sealing requirement of the sensor.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a liquid level sensor of a diffused silicon pressure detection circuit, which solves the problems that the existing sensor can be connected with an external lead for transmitting an electric signal in the use process and used for transmitting a detected signal, the position of the external lead led out of the sensor is easy to be damaged, so that the sensor cannot be used normally, and the external lead is inconvenient to maintain and replace and inconvenient to use due to the sealing requirement of the sensor.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a liquid level sensor of diffusion silicon pressure detection circuit, includes sensor body, sealed lid and wire subassembly, sensor body upper portion is provided with the connection end plate of connecting sealed lid, and the wiring groove that connection end plate intermediate position department set up sets up with the conductive contact cooperation of wire subassembly lower part, and the block cover of sealed lid is established outside the stopper of external lead wire outside encapsulation on the wire subassembly, and the perforation that the external lead wire upper end was offered on passing the block extends outside, lower extreme electric connection on conductive contact.

Further, connecting end plate on the sensor body and the cooperation of the connection lip on the sealing cap set up, and connecting bolt passes in the counter bore threaded connection of seting up on the connection lip set up on the sensor body, and has settled sealing washer in the first seal groove of seting up on the connecting end plate, has seted up the second seal groove of cooperation sealing washer on the connection lip, one side integral type of connecting the lip is provided with the rest stand, and the end bending of rest stand set up and has seted up the draw-in groove, and connect lip and the setting of block integrated into one piece, and block upper portion perforation periphery is provided with the sealed ring gear of grafting in stopper upper end jack groove to the conflict ring that sets up on the block is contradicted in the border position department of stopper upper end.

(III) beneficial effects

Compared with the prior art, the utility model provides a liquid level sensor of a diffused silicon pressure detection circuit, which has the following beneficial effects:

according to the utility model, the external lead connected to the sensor is connected in an inserting mode, meanwhile, the sealing cover is arranged at the connecting position, the butt joint line position is sealed, stable connection of the external lead is ensured, normal use is ensured, when the damaged lead is required to be maintained and replaced, the sealing cover is only required to be detached, a new lead assembly is replaced and inserted at the original wiring position, and the sealing cover is arranged.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a sensor body according to the present utility model;

FIG. 3 is a schematic diagram of a wire assembly according to the present utility model;

fig. 4 is a cross-sectional view of a seal cap in accordance with the present utility model.

In the figure: 1. a sensor body; 101. connecting end plates; 102. a threaded hole; 103. a first seal groove; 104. wiring grooves; 2. sealing cover; 201. a setting frame; 2011. a clamping groove; 202. a connecting lip; 2021. countersink; 2022. a second seal groove; 203. capping; 2031. perforating; 2032. sealing the toothed ring; 2033. a collision ring; 3. a wire assembly; 301. externally connecting a lead; 302. a conductive contact; 303. a limiting block; 304. a plug-in groove; 4. and (5) connecting bolts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, 3 and 4, one embodiment of the present utility model proposes: a liquid level sensor of a diffused silicon pressure detection circuit comprises a sensor body 1, a sealing cover 2 and a wire component 3, wherein a connecting end plate 101 connected with the sealing cover 2 is arranged at the upper part of the sensor body 1 to ensure that the sealing cover 2 can be stably connected to the sensor body 1, the wiring part connected with the wire component 3 at the upper part of the sensor body 1 is sealed to ensure the stable connection of an external wire of the sensor so as to facilitate the stable use, an electric signal detected by the sensor is transmitted, a wire slot 104 arranged at the middle position of the connecting end plate 101 is matched with a conductive contact 302 at the lower part of the wire component 3 to ensure the stable use by stably connecting the wire component 3 with the sensor body 1, a cap 203 of the sealing cover 2 is covered outside a limiting block 303 externally packaged by an external lead 301 on the wire component 3, the stopper 303 is the rubber material, the setting of stopper 303 is used for cooperating the block 203 together, external lead 301 carries out spacing fixedly, utilize the block 203 to cooperate stopper 303 together to use, with external lead 301 fixed spacing on sealed lid 2, accomplish the stable connection between external lead 301 and the sensor body 1, external lead 301 upper end extends outside through the perforation 2031 of seting up on the block 203, lower extreme electric connection is on conductive contact 302, utilize conductive contact 302 to link together external lead 301 and the wiring groove 104 electric connection on the sensor body 1, when external lead 301 is damaged or breaks down in the use, directly tear sealed lid 2 on the sensor body 1 down, take off wire assembly 3, and the wire assembly 3 that renews is installed and can continue to use, moreover, the steam generator is simple in structure, maintenance operation is simple and convenient.

As shown in fig. 2, 3 and 4, in some embodiments, the connection end plate 101 on the sensor body 1 is matched with the connection lip 202 on the sealing cover 2, the sealing cover 2 is stably connected to the sensor body 1 by utilizing the matching between the connection end plate 101 and the connection lip 202, the connection bolt 4 passes through the counter bore 2021 formed on the connection lip 202 to be in threaded connection with the threaded hole 102 formed on the sensor body 1, the connection end plate 101 is stably installed together by the connection bolt 4, the connection end plate 101 is conveniently split, a sealing gasket is arranged in the first sealing groove 103 formed on the connection end plate 101, the second sealing groove 2022 matched with the sealing gasket is formed on the connection lip 202, the sealing at the connection position is realized by utilizing the sealing gasket arranged in the first sealing groove 103 and the second sealing groove 2022, the gap water seepage at the connection position is avoided, ensuring stable use, one side of the connecting lip plate 202 is integrally provided with a placement frame 201, the tail end of the placement frame 201 is bent and provided with a clamping groove 2011, the placement frame 201 is convenient for stably installing the whole sensor at a use position, meanwhile, the clamping groove 2011 at the tail end of the placement frame 201 is convenient for connecting the whole sensor to a fixed bolt, the connecting lip plate 202 and the cover 203 are integrally formed, the periphery of an upper through hole 2031 of the cover 203 is provided with a sealing toothed ring 2032 which is inserted into an inserting groove 304 at the upper end of the limiting block 303, the position is sealed by the inserting connection between the sealing toothed ring 2032 and the inserting groove 304 on the limiting block 303, water seepage is avoided in the use process, the arranged abutting ring 2033 is abutted at the edge position of the upper end of the limiting block 303, the arranged abutting ring 2033 is abutted at the convenient position of the limiting block 303, the upper end of the limiting block 303 is slightly deformed, so that the groove wall of the inserting groove 304 is tightly abutted against the sealing toothed ring 2032, and the sealing performance of the position is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (3)

1. The utility model provides a liquid level sensor of diffusion silicon pressure detection circuit, includes sensor body (1), sealed lid (2) and wire subassembly (3), its characterized in that: the sensor is characterized in that a connecting end plate (101) for connecting a sealing cover (2) is arranged on the upper portion of the sensor body (1), a wiring groove (104) arranged at the middle position of the connecting end plate (101) is matched with a conductive contact (302) at the lower portion of a wire assembly (3), a cover cap (203) of the sealing cover (2) is covered outside a limiting block (303) externally packaged by an external lead (301) on the wire assembly (3), and the upper end of the external lead (301) penetrates through a perforation (2031) formed in the cover cap (203) to extend to the outside and the lower end of the conductive contact to be electrically connected to the conductive contact (302).

2. A liquid level sensor of a diffused silicon pressure detection circuit according to claim 1, wherein: connecting end plate (101) on sensor body (1) and connecting lip (202) cooperation setting on sealed lid (2), connecting bolt (4) pass counter bore (2021) threaded connection of seting up on connecting lip (202) in screw hole (102) of seting up on sensor body (1), and settle in first seal groove (103) of seting up on connecting end plate (101) has sealing washer, has seted up second seal groove (2022) of cooperation sealing washer on connecting lip (202).

3. A liquid level sensor of a diffused silicon pressure detection circuit according to claim 2, wherein: one side integral type of connection lip (202) is provided with rack (201), and the end of rack (201) is buckled and is set up, and has offered draw-in groove (2011), and connection lip (202) and lid (203) integrated into one piece setting, and lid (203) upper portion perforation (2031) periphery is provided with sealed ring gear (2032) of pegging graft in stopper (303) upper end jack groove (304) to conflict ring (2033) that set up on lid (203) are contradicted in the marginal position department of stopper (303) upper end.