CN210401449U

CN210401449U - Probe protection positioning sleeve and probe

Info

Publication number: CN210401449U
Application number: CN201920990165.6U
Authority: CN
Inventors: 范园超; 哥伦布·马可
Original assignee: Tyco Electronics Shanghai Co Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-24
Anticipated expiration: 2029-06-26

Abstract

The utility model belongs to the technical field of the probe structure, a probe protection position sleeve and probe are related to. The probe protection positioning sleeve comprises a tube body and a buffer piece, the buffer piece is arranged on the outer wall of the tube body, the buffer piece can increase damping between the buffer piece and the inner wall of the shell, and the buffer piece is further used for supporting the tube body inside the shell. When assembling the probe, firstly, placing a printed circuit board assembly with an induction element in the accommodating cavity of the tube body, assembling the tube body assembled with the printed circuit board assembly into the shell, rotating to adjust the position of the printed circuit board assembly, namely adjusting the position of the induction element, so that the signal waveform is deviated in a correct phase, and finally packaging. The sleeve can tightly fix the printed circuit board assembly in the housing and also can adjust the position of the printed circuit board assembly, thereby protecting and positioning the printed circuit board assembly in the housing. The probe adopts a simpler and more convenient mounting process, a more efficient process flow, better phase offset, time saving, yield improvement and cost reduction.

Description

Probe protection positioning sleeve and probe

Technical Field

The utility model belongs to the technical field of the probe structure, a probe protection positioning sleeve and have this probe protection positioning sleeve's probe is related to.

Background

A prior art speed sensor includes a housing, a printed circuit board assembly assembled within the housing. The printed circuit board assembly comprises a printed circuit board and an induction element arranged on the printed circuit board, wherein the induction element is a Hall element. Phase offset, which is a very important parameter with respect to the speed sensor signal waveform, depends on the relative position between the hall element and the gear teeth.

The assembly method of the speed sensor in the prior art is troublesome in assembly and comprises two steps: placing a printed circuit board assembly in a shell, rotating the printed circuit board assembly to meet the phase deviation requirement, and then marking the position of the printed circuit board assembly; and step two, spreading glue on the top end of the printed circuit board assembly, placing the printed circuit board assembly at the marking position, fixing the printed circuit board assembly, and then packaging.

If the inductive element is not positioned and fastened in the housing, phase difference will be caused, and defective products may be produced after packaging. Adopt glue to realize that the inductive element is fixed, need to fix a position the inductive element by hand, wait that glue solidifies the back, just can reliably fix a position, the assembly is consuming time, because fix a position the inductive element by hand and cause positional deviation easily. Or, an additional position holding device is adopted to position the sensing element to enable glue to be solidified, so that assembly is troublesome and cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a probe protection position sleeve and probe to solve the probe assembly that exists among the prior art troublesome, arouse the technical problem of phase difference easily.

An embodiment of the utility model provides a probe protection position sleeve, it is used for the protection and fixes a position the printed circuit board subassembly that has inductive element, probe protection position sleeve includes:

the tube body is used for being arranged inside the shell and is provided with an accommodating cavity for accommodating a printed circuit board assembly with an induction element, and the inner wall of the tube body is arranged to support the printed circuit board assembly with the induction element; and

the buffer piece is fixedly arranged on the outer wall of the tube body, deforms when stressed and is used for increasing damping between the tube body and the inner wall of the shell, and at least part of the buffer piece protrudes out of the outer wall of the tube body along the radial direction and is used for supporting the tube body inside the shell.

Optionally, the outer wall of the pipe body is provided with glue for bonding with the inner wall of the shell.

Optionally, the outer wall of the pipe body is provided with a plurality of grooves, and part of the grooves are filled with the buffer member.

Optionally, the buffer is fixed in the groove by glue.

Optionally, in addition the groove is filled with glue.

Optionally, the groove is arranged along the axial extension of the pipe body.

Optionally, the grooves are uniformly distributed on the outer wall of the pipe body.

Optionally, one of the two adjacent grooves is filled with the buffer, and the other groove is filled with glue.

Optionally, the inner wall of the pipe body is provided with two positioning grooves which are distributed oppositely and used for positioning the printed circuit board assembly.

Optionally, the probe protection locator sleeve is a unitary piece.

An embodiment of the utility model provides a probe, including casing, the foretell probe protection position sleeve that has the mounting groove to and wear to establish and be fixed in probe protection position sleeve printed circuit board assembly in the body, probe protection position sleeve set up in the casing in the mounting groove, the bolster butt in the inner wall of casing, printed circuit board assembly include printed circuit board and installation and electricity connect in sensing element on the printed circuit board.

Optionally, one end of the housing in the mounting groove is a closed end, an end of the probe protection positioning sleeve abuts against an inner wall of the closed end, and the sensing element abuts against the inner wall of the closed end.

Optionally, an end of the printed circuit board, which is far away from the inductive element, penetrates out of the tube body; the width of the printed circuit board is smaller than the inner diameter of the pipe body.

Optionally, the probe protection positioning sleeve and the printed circuit board assembly are fixed inside the housing by glue.

Optionally, the inductive element is disposed at an end of the printed circuit board.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in probe protection position sleeve and the probe have one of following technological effect at least: the probe protection positioning sleeve comprises a tube body and a buffer piece, the buffer piece is arranged on the outer wall of the tube body, the buffer piece can increase damping between the buffer piece and the inner wall of the shell, and the buffer piece is further used for supporting the tube body inside the shell. When assembling the probe, firstly, placing a printed circuit board assembly with an induction element in the accommodating cavity of the tube body, assembling the tube body assembled with the printed circuit board assembly into the shell, rotating to adjust the position of the printed circuit board assembly, namely adjusting the position of the induction element, so that the signal waveform is deviated in a correct phase, and finally packaging. The sleeve can tightly fix the printed circuit board assembly in the housing and also can adjust the position of the printed circuit board assembly, thereby protecting and positioning the printed circuit board assembly in the housing. The probe adopts a simpler and more convenient mounting process, a more efficient process flow, better phase offset, time saving, yield improvement and cost reduction. After the position of the probe is determined, the sensing element does not need to be positioned manually or by a position holding device during the solidification of the glue as in the prior art, and the assembly is easy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective assembly view of a probe according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the probe of FIG. 1;

FIG. 3 is a further exploded perspective view of the probe of FIG. 2;

FIG. 4 is a cross-sectional view of the probe of FIG. 1;

fig. 5 is an assembly view of the probe protection positioning sleeve and the printed circuit board assembly provided by the embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the embodiments of the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, a probe protection and positioning sleeve 10 for protecting and positioning a printed circuit board assembly 20 having an inductive element 22 is provided. The probe protective locator sleeve 10 includes a tubular body 11 and a buffer 12. The tube body 11 is provided inside the housing 30 and has a receiving cavity 111 for receiving the printed circuit board assembly 20 having the sensing element 22, and an inner wall of the tube body 11 is provided to support the printed circuit board assembly 20 having the sensing element 22. The buffer member 12 is fixedly arranged on the outer wall of the tube body 11, the buffer member 12 deforms when being stressed and is used for increasing damping between the tube body 11 and the inner wall of the shell 30, and at least part of the buffer member 12 protrudes out of the outer wall of the tube body 11 in the radial direction and is used for supporting the tube body 11 inside the shell 30.

The buffer 12 is disposed on the outer wall of the tube 11, the buffer 12 can increase the damping between the inner wall of the housing 30 and the buffer 12, and the buffer 12 is further used to support the tube 11 inside the housing 30. When assembling the probe, the pcb assembly 20 having the sensing element 22 is placed in the receiving cavity 111 of the tube 11, the tube 11 with the pcb assembly 20 assembled therein is assembled into the housing 30, rotated to adjust the position of the pcb assembly 20, i.e., adjust the position of the sensing element 22, so that the signal waveform is shifted in a correct phase, and finally packaged. The sleeve can tightly secure printed circuit board assembly 20 within housing 30 while also adjusting the position of printed circuit board assembly 20 to protect and position printed circuit board assembly 20 within housing 30. The probe adopts a simpler and more convenient mounting process, a more efficient process flow, better phase offset, time saving, yield improvement and cost reduction. After the position of the probe is determined, the sensing element does not need to be positioned manually or by a position holding device during the solidification of the glue as in the prior art, and the assembly is easy.

In another embodiment of the present invention, the inductive element 22 is electrically connected to the printed circuit board 21 to form the printed circuit board assembly 20. When the sensing element 22 is a hall element, the probe is a speed sensor. Specifically, the sensing element 22 is substantially cylindrical, the inner diameter of the tube 11 is equal to the outer diameter of the sensing element 22, and when the sensing element 22 is placed in the tube 11, the sensing element 22 can be positioned in the tube 11. The mounting groove 31 of the housing 30 is substantially cylindrical, and the probe protection and positioning sleeve 10 can be rotated to adjust the angular position of the probe protection and positioning sleeve 10 relative to the housing 30, that is, the angular position of the sensing element 22 relative to the housing 30, when the probe protection and positioning sleeve 10 is placed in the mounting groove 31.

In another embodiment of the present invention, the outer wall of the tube 11 is provided with glue (not shown) for bonding with the inner wall of the housing 30. The glue can fix the pipe body 11 in the housing 30. Specifically, the glue can be epoxy resin glue or other glue, and can realize bonding between different structures.

In another embodiment of the present invention, the outer wall of the tube 11 is formed with a plurality of grooves 112, and a part of the grooves 112 are filled with the buffer 12. The groove 112 is easy to machine. The buffer 12 is partially filled in the groove 112, and the other part of the buffer 12 protrudes out of the outer circumferential surface of the tube 11, so that the buffer 12 is reliably connected to the outer wall of the tube 11, and the buffer 12 protruding out of the outer circumferential surface of the tube 11 can be pressed against the inner wall of the housing 30, and the buffer 12 can be plastically deformed, thereby increasing the damping between the buffer 12 and the inner wall of the housing 30.

In another embodiment of the present invention, the buffer member 12 is fixed in the groove 112 by glue. This assembly is convenient, and the buffer member 12 is reliably fixed to the groove 112 of the tube 11. Specifically, the buffer 12 deforms when subjected to a force and provides a buffering effect, and the buffer 12 may be a plastic material or other buffering material.

In another embodiment of the present invention, the outer wall of the tube 11 is formed with a plurality of grooves 112, wherein a portion of the grooves 112 is filled with the buffer 12, and the grooves 112 are filled with glue. Part of the glue is filled in the groove 112, and the groove 112 stores more glue, so that the glue is solidified for a longer period, thereby facilitating the sleeve assembled with the printed circuit board assembly 20 to be rotated to adjust the angular position, and ensuring that the sleeve is reliably fixed in the housing 30.

In another embodiment of the present invention, the groove 112 is disposed along the axial extension of the tube 11. The structure is easy to form and facilitates filling of the buffer 12 with glue. The groove 112 extends in the axial direction, and accordingly, the buffer member 12 is linear, and the buffer member 12 is provided at the groove 112. When the probe protection positioning sleeve 10 is assembled in the shell 30, the buffer member 12 abuts against the inner wall of the shell 30, and the buffer member 12 can generate plastic deformation, so that the damping between the buffer member 12 and the inner wall of the shell 30 is increased.

In another embodiment of the present invention, the grooves 112 are uniformly distributed on the outer wall of the tube 11. When the buffer 12 is disposed in the groove 112, the buffer 12 is uniformly distributed between the tube 11 and the inner wall of the housing 30, and the tube 11 is reliably positioned and mounted in the housing 30 through the buffer 12. And can rotate to adjust the angular position of the probe protection positioning sleeve 10 relative to the shell 30, namely, the angular position of the sensing element 22 relative to the shell 30, and the operation is convenient.

In another embodiment of the present invention, one of the two adjacent grooves 112 is filled with the buffer 12, and the other groove 112 is filled with glue. This structure can reliably exert the function of the cushion member 12 and the glue, increase the damping force with the inner wall of the housing 30, and reliably fix the sleeve in the housing 30. Specifically, eight grooves 112 are uniformly distributed on the outer wall of the tube body 11, wherein four grooves 112 are used for arranging the buffer 12, and the other four grooves 112 are used for arranging glue. This scheme can adopt less buffer 12 and glue, plays the effect of buffer 12 and glue.

Referring to fig. 2, 3 and 5, in another embodiment of the present invention, the inner wall of the tube 11 is provided with two positioning grooves 113 distributed oppositely for positioning the pcb assembly 20. This structure is easy to be formed, and the printed circuit board assembly 20 of being convenient for pushes into the constant head tank 113, guarantees being located in casing 30 of printed circuit board assembly 20, improves the product yield when vibration test and impact test. Two positioning arms 114 are convexly arranged on the inner wall of the tube body 11, a positioning groove 113 is formed between the two positioning arms 114, the structure is easy to form, and the positioning of the printed circuit board 21 is realized.

In another embodiment of the present invention, the probe protection sleeve 10 is a single piece. The probe protection positioning sleeve 10 is easy to mold. Specifically, the tube body 11 and the buffer member 12 can be formed by two-shot molding, which facilitates molding.

Referring to fig. 1 to 5, in another embodiment of the present invention, a probe is provided, which includes a housing 30 having a mounting groove 31, the probe protection positioning sleeve 10, and a printed circuit board assembly 20 penetrating and fixed in a tube 11 of the probe protection positioning sleeve 10, wherein the probe protection positioning sleeve 10 is disposed in the mounting groove 31 of the housing 30, a buffer 12 abuts against an inner wall of the housing 30, and the printed circuit board assembly 20 includes a printed circuit board 21 and a sensing element 22 mounted and electrically connected on the printed circuit board 21.

The probe protection positioning sleeve 10 comprises a tube body 11 and a buffer member 12, the buffer member 12 is arranged on the outer wall of the tube body 11, the buffer member 12 can increase damping between the buffer member 12 and the inner wall of the shell 30, and the buffer member 12 is also used for supporting the tube body 11 inside the shell 30. When assembling the probe, the pcb assembly 20 having the sensing element 22 is placed in the receiving cavity 111 of the tube 11, the tube 11 with the pcb assembly 20 assembled therein is assembled into the housing 30, rotated to adjust the position of the pcb assembly 20, i.e., adjust the position of the sensing element 22, so that the signal waveform is shifted in a correct phase, and finally packaged. The sleeve can tightly secure printed circuit board assembly 20 within housing 30 while also adjusting the position of printed circuit board assembly 20 to protect and position printed circuit board assembly 20 within housing 30. The probe adopts a simpler and more convenient mounting process, a more efficient process flow, better phase offset, time saving, yield improvement and cost reduction. After the position of the probe is determined, the sensing element does not need to be positioned manually or by a position holding device during the solidification of the glue as in the prior art, and the assembly is easy.

In another embodiment of the present invention, the housing 30 has a mounting arm 33, and the mounting arm 33 has a mounting hole 331 formed therein, so as to facilitate positioning and mounting of the housing 30 by cooperating with the fastener. Specifically, the two end portions of the mounting arm 33 are respectively provided with a mounting hole 331, which facilitates the reliable assembly of the housing 30.

In another embodiment of the present invention, one end of the casing 30 in the mounting groove 31 is a closed end 32, the end of the probe protection and positioning sleeve 10 abuts against the inner wall of the closed end 32, and the sensing element 22 abuts against the inner wall of the closed end 32. The structure is easy to form and assemble, the probe protection positioning sleeve 10 assembled with the printed circuit board assembly 20 is placed in the shell 30, the end part of the probe protection positioning sleeve 10 abuts against the closed end 32, signals are transmitted to the induction element 22 through the closed end 32, and the induction element 22 receives the signals.

Referring to fig. 4, in another embodiment of the present invention, an end of the pcb 21 away from the sensing element 22 penetrates through the tube 11, which facilitates the pcb 21 to be assembled to the housing 30. The width of the printed circuit board 21 is smaller than the inner diameter of the tube 11, so that a part of the area of the printed circuit board 21 can penetrate through the tube 11, and the sensing element 22 can be positioned in the tube 11.

In another embodiment of the present invention, the probe protection positioning sleeve 10 and the printed circuit board assembly 20 are fixed inside the casing 30 by glue. The printed circuit board assembly 20 can be reliably fixed to the probe protection and positioning sleeve 10 by glue water, and the probe protection and positioning sleeve 10 can be reliably fixed inside the housing 30.

Referring to fig. 3, in another embodiment of the present invention, the sensing element 22 is disposed at an end of the printed circuit board 21. This structure is easy to assemble, allows the sensing element 22 to be reliably fixed to the end of the printed circuit board 21, and allows the sensing element 22 to be electrically connected to the printed circuit board 21. Specifically, the sensing element 22 has a card slot 221, and one end of the printed circuit board 21 is plugged into the card slot 221, so that the connection is reliable.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Probe protection locator sleeve, characterized in that it is used for protecting and locating a printed circuit board assembly having an inductive element, said probe protection locator sleeve comprising:

2. The probe protective locator sleeve of claim 1 wherein the outer wall of the tubular body is provided with glue for bonding to the inner wall of the housing.

3. The probe protection sleeve of claim 1 wherein said tubular body defines a plurality of grooves in an outer wall thereof, wherein a portion of said grooves are filled with said buffer.

4. The probe protective locator sleeve of claim 3 wherein the buffer is secured in the groove by glue.

5. The probe protective locator sleeve of claim 3 wherein additionally the recess is filled with glue.

6. The probe protective locator sleeve of claim 3 wherein the groove extends axially of the tubular body.

7. The probe protective locator sleeve of claim 3 wherein the grooves are evenly distributed on the outer wall of the tubular body.

8. The probe protective locator sleeve of claim 3 wherein one of the two adjacent notches is filled with the buffer and the other of the two adjacent notches is filled with glue.

9. The probe protective locator sleeve of claim 1 wherein the inner wall of the tubular body defines two oppositely disposed locating slots for locating the printed circuit board assembly.

10. The probe protection sleeve of claim 9 wherein said probe protection sleeve is a one-piece member.

11. The probe is characterized by comprising a shell with a mounting groove, a probe protection positioning sleeve according to any one of claims 1 to 10 and a printed circuit board assembly arranged in the tube body of the probe protection positioning sleeve in a penetrating and fixing mode, wherein the probe protection positioning sleeve is arranged in the mounting groove of the shell, the buffer part is abutted against the inner wall of the shell, and the printed circuit board assembly comprises a printed circuit board and an induction element which is arranged on the printed circuit board and electrically connected to the printed circuit board.

12. The probe of claim 11, wherein one end of the housing at the mounting groove is a closed end, the end of the probe protection positioning sleeve abuts against the inner wall of the closed end, and the sensing element abuts against the inner wall of the closed end.

13. The probe of claim 11 wherein an end of said printed circuit board remote from said sensing element extends through said tubular body; the width of the printed circuit board is smaller than the inner diameter of the pipe body.

14. The probe of claim 13, wherein said probe protection locator sleeve and said printed circuit board assembly are secured within said housing by glue.

15. The probe of claim 11, wherein said inductive element is disposed at an end of said printed circuit board.