CN210321691U

CN210321691U - Novel crankshaft position sensor assembly

Info

Publication number: CN210321691U
Application number: CN201921080893.XU
Authority: CN
Inventors: 李建斌; 陈勇; 李喜昌; 陶子亮
Original assignee: Zhejiang Aborn Automobile Sensor Co ltd
Current assignee: Zhejiang Aborn Automobile Sensor Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-04-14
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a novel crankshaft position sensor assembly, which belongs to the field of crankshaft position sensors and comprises a shell, wherein the front side of the shell is provided with a sensing head, the sensing head comprises a permanent magnet, a PCB core plate and a contact pin, the permanent magnet, the PCB core plate and the contact pin are arranged in the shell, a bush is embedded in the inner surface of the lower side of the cam part of the shell, the outer end surface of the center part of the bush is provided with a ring groove, the inner surface of the lower side of the cam is connected with a screw through a screw hole, a spherical bulge of the screw is extruded in the ring groove of the bush, the inner surface of the outer end edge part of the bush is fixedly connected with a hollow rubber ring, after the bush is embedded, the hollow rubber ring is positioned and fixed through the screw, the firmness of the bush is improved, and a layer of a bent ring shell is additionally arranged on the, the fitting sealing performance during installation can be improved.

Description

Novel crankshaft position sensor assembly

Technical Field

The utility model relates to a bent axle position sensor field, more specifically say, relate to a novel bent axle position sensor assembly.

Background

The function of the crankshaft position sensor is to determine the position of the crankshaft, i.e. the angle of rotation of the crankshaft, which is usually operated in conjunction with a camshaft position sensor to determine the basic ignition moment;

in current crankshaft position sensor, the bush in the cam is through direct crimping embedded wherein, but still need improve through the fastness of embedded fixed its bush when using, can add on the shell in addition and establish the sealing washer and be used for when installing sealed, on current novel crankshaft position sensor assembly, the sealed effect of sealing washer part still needs to improve.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a novel bent axle position sensor assembly, through the embedded back of bush, rethread screw and hollow rubber circle fix a position fixedly, improve the fastness of bush, through establish the crooked ring shell of one deck in addition outside original rubber circle, laminating leakproofness when can improving the installation.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A novel crankshaft position sensor assembly comprises a shell, wherein a sensing head is arranged on the front side of the shell and comprises a permanent magnet, a PCB core plate and a contact pin, the permanent magnet, the PCB core plate and the contact pin are arranged in the shell, a lining is embedded in the surface of the inner end of the lower side of a cam of the shell, a ring groove is formed in the surface of the outer end of the center of the lining, a screw is connected to the surface of the inner end of the lower side of the cam through a screw hole, a spherical bulge is arranged at the upper end of the screw and extruded in the ring groove of the lining, a hollow rubber ring is fixedly connected to the inner side surface of the edge of the outer end of the lining, the outer end surface of the hollow rubber ring is extruded in an inner ring groove of the inner end of the lower side of the cam, after the lining is embedded, the hollow rubber ring is positioned and fixed through the screw and, the fitting sealing performance during installation can be improved.

Furthermore, the outer side surface of the shell is provided with an outer ring groove, a rubber ring is connected in the outer ring groove, the inner end face of the rubber ring is attached to the outer ring groove, and the surface of the outer end of the rubber ring is fixedly connected with a bent ring shell, so that the sealing performance of the rubber ring can be improved.

Furthermore, the bending ring shell is made of a soft rubber material, a cavity is formed between the inner end of the bending ring shell and the outer end of the rubber ring, when the bending ring shell is integrally installed, the outer end of the bending ring shell is firstly extruded, the bending ring shell and the rubber ring can be compressed through the cavity between the bending ring shell and the rubber ring, after the bending ring shell and the rubber ring are compressed, good elasticity is achieved, the bending ring shell can be tightly attached to an installation surface, the two ends of the bending ring shell are pressed down to bulge at the center after the bending ring shell is extruded, the extrusion attaching surface is improved, and sealing performance is improved.

Furthermore, the screw adopts flat round head screw as the main part, and the sphere arch is established to the screw upper end, and the lower extreme is equipped with the recess, and the screw is twisted to the screwdriver of being convenient for to use flat mouthful.

Furthermore, the lower surface of the cam of the shell is provided with a circular groove, the screw is embedded in the circular groove, no protrusion is formed on the surface, and the structure is attractive.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) through the embedded back of bush, rethread screw and hollow rubber circle fix a position fixedly, improve the fastness of bush, through establish the crooked ring shell of one deck in original rubber circle adds, laminating leakproofness when can improving the installation.

(2) The outer side surface of shell is equipped with outer annular groove, and outer annular groove in-connection has the rubber circle, and the interior terminal surface laminating of rubber circle is in outer annular groove, and rubber circle outer end fixed surface is connected with crooked ring shell, can improve the sealing performance of rubber circle.

(3) The bending ring shell is made of a soft rubber material, a cavity is formed between the inner end of the bending ring shell and the outer end of the rubber ring, when the bending ring shell is integrally installed, the outer end of the bending ring shell is firstly extruded, the bending ring shell and the rubber ring can be compressed through the cavity between the bending ring shell and the rubber ring, after the bending ring shell and the rubber ring are compressed, good elasticity is achieved, the bending ring shell can be tightly attached to an installation surface, the two ends of the bending ring shell are pressed to be bulged after the bending ring shell is extruded, the extrusion attaching surface is improved, and the sealing performance is improved.

(4) The screw adopts flat round head screw as the main part, and the screw upper end is equipped with the sphere arch, and the lower extreme is equipped with the recess, and the screw is twisted to convenient to use flat screwdriver.

(5) The lower surface of the cam of the shell is provided with a circular groove, the screw is embedded in the circular groove, no protrusion is formed on the surface, and the structure is attractive.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a right side view of the overall structure of the present invention;

FIG. 3 is a sectional view of the overall structure of the present invention;

FIG. 4 is an enlarged view of the point A of the present invention;

fig. 5 is a sectional view of the connection relationship between the rubber ring and the local structure of the bending ring shell.

The reference numbers in the figures illustrate:

the sensor comprises a shell 1, a sensing head 2, a permanent magnet 3, a PCB core board 4, a pin 5, a bushing 6, a ring 7 groove, a screw 8, a spherical protrusion 9, a hollow rubber ring 10, an inner ring groove 11, a rubber ring 12, an outer ring groove 13, a bent ring shell 14 and a circular groove 80.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1-5, a novel crankshaft position sensor assembly, comprising a housing 1, a sensor head 2 is arranged at the front side of the housing 1, the sensor head 2 comprises a permanent magnet 3, a PCB core 4, and a contact pin 5, the permanent magnet 3, the PCB core 4, and the contact pin 5 are arranged in the housing 1, which is the prior art, a bushing 6 is embedded in the inner surface of the lower side of the cam of the housing 1, a ring groove 7 is arranged on the outer end surface of the center of the bushing 6, a screw 8 is connected to the inner surface of the lower side of the cam through a screw hole, a spherical protrusion 9 is arranged at the upper end of the screw 8, the spherical protrusion 9 of the screw 8 is extruded in the ring groove 7 of the bushing 6, a hollow rubber ring 10 is fixedly connected to the inner surface of the outer end edge of the bushing 6, and the outer end.

Referring to fig. 1-5, an outer ring groove 13 is formed on the outer side surface of a housing 1, a rubber ring 12 is connected in the outer ring groove 13, the inner end surface of the rubber ring 12 is attached in the outer ring groove 13, a curved ring shell 14 is fixedly connected to the outer end surface of the rubber ring 12, the sealing performance of the rubber ring 12 can be improved, the curved ring shell 14 is made of a soft rubber material, the inner end of the curved ring shell 14 and the outer end of the rubber ring 12 form a cavity, when the housing is integrally installed, the curved ring shell 14 at the outer end is firstly extruded, the curved ring shell 14 and the rubber ring 12 can be compressed through the cavity between the housing and the rubber ring 12, after the curved ring shell 14 and the rubber ring 12 are compressed, the curved ring shell 14 has good elasticity and can be closely attached to an installation surface, after the curved ring shell 14 is extruded, the two ends are pressed at the center, the extrusion attachment surface is improved, the sealing performance is improved, a flat round head screw is used, the lower end is provided with a groove, a flat screwdriver is convenient to use to twist the screw 8, the lower surface of the cam of the shell 1 is provided with a circular groove 80, the screw 8 is embedded in the circular groove 80, no protrusion is formed on the surface, and the structure is attractive.

After the bushing 6 is embedded in the cam of the shell 1, the hollow rubber ring 10 at the outer end of the bushing 6 can be clamped into the inner ring groove 11 for positioning, meanwhile, the screw 8 is connected into the screw hole, the flat round head screw is used as a main body through the screw 8, the spherical bulge 9 is arranged at the upper end of the screw 8, the spherical bulge 9 of the screw 8 is extruded in the ring groove 7 of the bushing 6, the bushing 6 can be extruded and fixed again, the bushing 6 is more firmly embedded, the circular groove 80 is arranged on the lower surface of the cam of the shell 1, the screw 8 is embedded in the circular groove 80, no bulge exists on the surface, and the structure is attractive;

the inner end face of the rubber ring 12 is attached to the outer ring groove 13, the outer end surface of the rubber ring 12 is fixedly connected with the bent ring shell 14, the sealing performance of the rubber ring 12 can be improved, the bent ring shell 14 is made of a soft rubber material, a cavity is formed between the inner end of the bent ring shell 14 and the outer end of the rubber ring 12, when the rubber ring is integrally installed, the bent ring shell 14 at the outer end is firstly extruded, the bent ring shell 14 and the rubber ring 12 can be compressed through the cavity between the bent ring shell 14 and the rubber ring 12, after the bent ring shell 14 and the rubber ring 12 are compressed, good elasticity can be tightly attached to an installation surface, the two ends of the bent ring shell 14 are pressed down at the center after being extruded, the extrusion attachment surface is improved, and the sealing performance is improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. A novel crankshaft position sensor assembly, includes shell (1), its characterized in that: the front side of the shell (1) is provided with a sensing head (2), the sensing head (2) comprises a permanent magnet (3), a PCB core plate (4) and a contact pin (5), the permanent magnet (3), the PCB core board (4) and the contact pin (5) are arranged in the shell (1), a bush (6) is embedded in the surface of the inner end of the lower side of the cam of the shell (1), a ring groove (7) is arranged on the outer end surface of the center of the bushing (6), the inner end surface of the lower side of the cam is connected with a screw (8) through a screw hole, the upper end of the screw (8) is provided with a spherical bulge (9), the spherical bulge (9) of the screw (8) is extruded in the ring groove (7) of the bushing (6), the inner side surface of the outer end edge part of the bushing (6) is fixedly connected with a hollow rubber ring (10), the outer end surface of the hollow rubber ring (10) is extruded in an inner ring groove (11) at the inner end of the lower side of the cam.

2. The novel crankshaft position sensor assembly of claim 1, wherein: the outer side surface of the shell (1) is provided with an outer ring groove (13), a rubber ring (12) is connected in the outer ring groove (13), the inner end face of the rubber ring (12) is attached to the outer ring groove (13), and the outer end surface of the rubber ring (12) is fixedly connected with a bent ring shell (14).

3. The novel crankshaft position sensor assembly of claim 2, wherein: the bending ring shell (14) is made of a soft rubber material, and a cavity is formed between the inner end of the bending ring shell (14) and the outer end of the rubber ring (12).

4. The novel crankshaft position sensor assembly of claim 1, wherein: the screw (8) adopts flat round head screw as the main part, and spherical surface arch (9) are established to screw (8) upper end, and the lower extreme is equipped with the recess.

5. The novel crankshaft position sensor assembly of claim 1, wherein: the lower surface of the cam of the shell (1) is provided with a circular groove (80), and a screw (8) is embedded in the circular groove (80).