CN221123422U

CN221123422U - Crankshaft position sensor

Info

Publication number: CN221123422U
Application number: CN202323087727.1U
Authority: CN
Inventors: 何必胥; 胡小炳; ***; 林庆枢; 张卫航; 林庆俊; 孙成超
Original assignee: Shanghai Prevision Automotive Sensor Co ltd
Current assignee: Shanghai Prevision Automotive Sensor Co ltd
Priority date: 2023-11-16
Filing date: 2023-11-16
Publication date: 2024-06-11
Anticipated expiration: 2033-11-16

Abstract

The utility model relates to the technical field of sensors, and discloses a crankshaft position sensor which comprises a shell, wherein a framework is arranged at the top of the shell, a wire clip is arranged at the top of the framework, a PCBA is installed in the shell, and a chip is fixedly installed at the bottom of the inner wall of the shell. According to the utility model, the epoxy resin is arranged, the epoxy resin can be sealed, so that parts on the shell are connected together, a closed cavity is formed in the shell, dust and other impurities can be prevented from entering, the silica gel is arranged, the silica gel covers the internal parts, so that the internal parts are protected from damage, the line card fixes one end of a cable on the framework, the cable is protected from damage, the other end of the cable penetrates through a PCB hole, the other end of the cable is firmly fixed through the PCB hole, and the reinforcing ring can play a role in connection stability when other parts are connected with the connecting hole.

Description

Crankshaft position sensor

Technical Field

The utility model relates to the technical field of sensors, in particular to a crankshaft position sensor.

Background

The crank position sensor is one of the most prominent sensors in the electronic control system of the engine, and provides a signal for confirming the ignition timing (ignition advance angle) and the crank position for detecting the piston top dead center, the crank angle and the engine speed. The structure adopted by the crankshaft position sensor is different according to different vehicle types, and can be divided into three categories of magnetic pulse type, photoelectric type and Hall type. It is typically mounted on the front end of the crankshaft, the front end of the camshaft, the flywheel, or within the distributor.

According to the Chinese patent publication No. CN208156030U, the utility model discloses a crankshaft position sensor, which comprises a crankshaft position probe, a wire harness plug-in connector and a sealing ring, wherein the sealing ring is sleeved on the outer wall of the crankshaft position probe. The utility model aims at: aiming at the problem that the installation position of the existing crankshaft position sensor is greatly limited, the crankshaft position sensor is provided. The sealing ring of the sensor can enable the sealing effect on two sides of the sensor mounting hole to be better after the sensor is mounted on the basis that the transmission of a rotating speed signal between the crankshaft position probe and the wire harness plug connector is not affected. Therefore, when the sensor is arranged at the position, the problem of leakage such as lubricating oil is not needed to be considered, the installation position range is wider, and the arrangement mode of the components in the engine compartment is more flexible.

However: some existing sensor devices are easy to fix and loose, so that cables are easy to loose, and are easy to damage after long-time abrasion.

Disclosure of utility model

(One) solving the technical problems

In response to the deficiencies of the prior art, the present utility model provides a crankshaft position sensor.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the crankshaft position sensor comprises a shell, a framework is arranged at the top of the shell, a wire clip is arranged at the top of the framework, PCBA is arranged in the shell, and a chip is fixedly arranged at the bottom of the inner wall of the shell.

Preferably, a cable is sleeved in the line card. Through this preference, the ply-yarn drill is fixed the one end of cable conductor on the skeleton to be used for protecting the cable conductor, avoid the cable conductor to receive the damage.

Preferably, the PCBA is provided with a through hole, and the other end of the cable extends to the inside of the shell and penetrates through the through hole. Through the preference, the other end of the cable passes through the PCB hole, and the PCB hole firmly fixes the other end of the cable.

Preferably, the top of the shell is provided with a connecting hole, and a reinforcing ring is fixedly arranged in the connecting hole. Through this preference, through setting up the strengthening ring, when other parts are connected with the connecting hole, the strengthening ring can play the effect of connecting stability, avoids appearing not hard up condition.

Preferably, the top of the shell is provided with epoxy resin. By this preference, the epoxy can be sealed by providing it, thereby linking the components on the housing together so that a closed cavity is formed inside the housing.

Preferably, silica gel is arranged inside the shell. Through this preference, through setting up silica gel, silica gel covers inside components and parts to be used for protecting inside components and parts, avoid receiving the damage.

(III) beneficial effects

Compared with the prior art, the utility model provides the crankshaft position sensor, which has the following beneficial effects:

1. This crank shaft position sensor, through setting up epoxy, epoxy can seal, thereby link together spare part on the casing, make the inside airtight cavity that forms of casing, thereby can avoid impurity such as dust to get into, through setting up silica gel, silica gel covers inside components and parts, thereby be used for protecting inside components and parts, avoid receiving the damage, the ply-yarn drill is fixed the one end of cable conductor on the skeleton, thereby be used for protecting the cable conductor, avoid the cable conductor to receive the damage, the cable conductor other end then passes the PCB hole, the PCB hole then firmly fixes the cable conductor other end.

2. This crank shaft position sensor through setting up the strengthening ring, when other parts are connected with the connecting hole, the strengthening ring can play the effect of connecting stability, avoids appearing not hard up condition.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

fig. 3 is a left side schematic view of the present utility model.

In the figure: 1. a housing; 2. a cable; 3. a reinforcing ring; 4. a line clip; 5. a skeleton; 6. PCBA; 7. and a chip.

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.

Example 1

As shown in fig. 1-3, the utility model provides a crank shaft position sensor, which comprises a shell 1, wherein a framework 5 is arranged at the top of the shell 1, a line clamp 4 is arranged at the top of the framework 5, a cable 2 is sleeved in the line clamp 4, a chip 7 is fixedly arranged at the bottom of the inner wall of the shell 1, a cable 2 is sleeved in the line clamp 4, a through hole is formed in a PCBA6, the other end of the cable 2 extends into the shell 1 and penetrates through the through hole, epoxy resin is arranged at the top of the shell 1, and silica gel is arranged in the shell 1.

In this embodiment, through setting up epoxy, epoxy can seal to link together spare part on the casing 1, make the inside airtight cavity that forms of casing 1, thereby can avoid impurity such as dust to get into, through setting up silica gel, silica gel covers inside components and parts, thereby be used for protecting inside components and parts, avoid receiving the damage, the one end of ply-yarn drill 4 with cable 2 is fixed on skeleton 5, thereby be used for protecting cable 2, avoid cable 2 to receive the damage, the cable 2 other end then passes the PCB hole, the PCB hole then firmly fixes the cable 2 other end.

Example 2

As shown in fig. 1-3, on the basis of embodiment 1, the present utility model provides a technical solution: the top of the preferred shell 1 is provided with a connecting hole, and a reinforcing ring 3 is fixedly arranged in the connecting hole.

In this embodiment, through setting up stiffener ring 3, when other parts are connected with the connecting hole, stiffener ring 3 can play the effect of connecting stability, avoids appearing not hard up condition.

The working principle of the crank position sensor will be described in detail below.

As shown in fig. 1-3, when in use, the epoxy resin can be sealed by arranging the epoxy resin, thereby connecting parts on the shell 1 together, so that a closed cavity is formed inside the shell 1, thereby avoiding the entry of dust and other impurities, the silica gel is arranged to cover the internal components, thereby protecting the internal components, avoiding damage, the line card 4 fixes one end of the cable 2 on the framework 5, thereby protecting the cable 2, avoiding damage to the cable 2, the other end of the cable 2 passes through a PCB hole, the other end of the cable 2 is firmly fixed by the PCB hole, and the reinforcing ring 3 can play a role of connecting stability when other parts are connected with the connecting hole, thereby avoiding the loose condition.

Claims

1. Crank shaft position sensor, including casing (1), its characterized in that: the novel multifunctional electric power tool is characterized in that a framework (5) is arranged at the top of the shell (1), a line clamp (4) is arranged at the top of the framework (5), PCBA (6) is installed in the shell (1), and a chip (7) is fixedly installed at the bottom of the inner wall of the shell (1).

2. The crankshaft position sensor of claim 1, wherein: the cable (2) is sleeved inside the line clamp (4).

3. The crankshaft position sensor of claim 2, wherein: the PCBA (6) is provided with a through hole, and the other end of the cable (2) extends towards the inside of the shell (1) and penetrates through the through hole.

4. The crankshaft position sensor of claim 1, wherein: the top of the shell (1) is provided with a connecting hole, and a reinforcing ring (3) is fixedly arranged in the connecting hole.

5. The crankshaft position sensor of claim 1, wherein: the top of the shell (1) is provided with epoxy resin.

6. The crankshaft position sensor of claim 1, wherein: the inside of the shell (1) is provided with silica gel.