CN219304355U

CN219304355U - Cable buckle and photoelectric sensor with same

Info

Publication number: CN219304355U
Application number: CN202223581153.9U
Authority: CN
Inventors: 钟林鑫
Original assignee: Suzhou Boe Sensing Technology Co ltd
Current assignee: Suzhou Boe Sensing Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of photoelectric sensors, in particular to a cable buckle and a photoelectric sensor with the cable buckle. The cable buckle comprises a cable with an internal lead and a jacket and a sealing shell which is integrally injection-molded with the jacket, so that no gap exists between the cable and the sealing shell, and the sealing effect of the cable circumference is improved; the inner side area of the sealing shell is smaller than the outer side area of the sealing shell, and at least one side wall of the sealing shell is provided with a locking protrusion or a locking groove, so that no gap exists between the cable and the sealing shell, and the sealing effect of the cable circumference can be improved; and the inner side area of the envelope is smaller than the outer side area of the envelope, so that the envelope can be conveniently inserted into the sensor shell during assembly, the contact area between the sensor shell and sealant is increased, and the assembly efficiency and the tightness are improved.

Description

Cable buckle and photoelectric sensor with same

Technical Field

The utility model relates to the technical field of photoelectric sensors, in particular to a cable buckle and a photoelectric sensor with the cable buckle.

Background

The photoelectric sensor needs to meet certain waterproof requirements in a specific environment, and because the photoelectric sensor needs to be powered through cables and/or communicate with the outside, the existing waterproof photoelectric sensor generally seals the cables through sealing rings with various specifications so as to avoid water leakage caused by gaps when the cables pass through the sensor shell. However, there are a number of inconveniences associated with the manner in which the sealing ring is used to seal the cable. For example, the assembly process is complicated, the requirement on the assembly precision is high, and the assembly precision is influenced; and along with the increase of the service time, the fatigue of the sealing ring can reduce the sealing effect of the sealing ring, and the waterproof requirement cannot be met. In order to solve the above problem and improve the sealing effect of the sensor, the prior art adopts threading to perform injection molding on the housing and the cable to form a whole, and although the above mode can improve the sealing effect, the housing of the sensor needs to be separately threaded and then further injection molded, so that the assembly efficiency is low.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art, so as to provide a cable buckle and a photoelectric sensor with the cable buckle.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a cable buckle, which comprises a cable, a connecting rod and a connecting rod, wherein the cable comprises an inner wire and an outer sleeve surrounding the inner wire; the shell is integrally molded with the outer sleeve, and at least one side wall of the shell is provided with a locking protrusion or a locking groove; the inner lead penetrates through the sealing shell and extends to the inner side of the sealing shell.

Optionally, in the cable fastener, an area of an inner top of the enclosure is smaller than an area of an outer side of the enclosure.

Optionally, in the cable fastener, the enclosure is of a multi-stage step structure from the outer side to the inner side.

Optionally, in the cable fastener, the enclosure is of a three-section step structure from the outside to the inside; the locking protrusion or the locking groove is located on the side wall of the step structure of the middle section.

Optionally, in the cable fastener, the enclosure has a first straight section and a second straight section, and the first straight section is a section perpendicular to the outer sleeve; the second straight section is integrally connected with the first straight section through an arc section, and the second straight section extends obliquely to the inner side of the envelope.

The utility model also provides a photoelectric sensor, which comprises a shell, a cover body and a circuit board, wherein the circuit board is arranged in the shell; and the inner lead of the cable fastener is electrically connected with the circuit board.

Optionally, in the photoelectric sensor provided by the utility model, the side wall of the shell is provided with a containing groove for containing the enclosure, and the inner side wall of the containing groove is provided with a locking structure corresponding to the locking protrusion or the locking groove; the accommodating groove is communicated with the inner cavity of the shell through an opening, and the internal lead extends into the inner cavity of the shell through the opening.

Optionally, in the photoelectric sensor provided by the utility model, the outer edges at two sides of the accommodating groove are provided with outer contours similar to those of the enclosure; the cable extends obliquely upward outwardly from a side wall of the housing.

Optionally, in the photoelectric sensor provided by the utility model, the accommodating groove is filled with sealant, and the sealant seals the opening.

Optionally, in the photoelectric sensor provided by the utility model, the shell is provided with a section of vertical side wall above the accommodating groove; the cover is positioned on top of the vertical sidewall and has an arcuate outer contour that engages the outer surface of the vertical sidewall.

The technical scheme of the utility model has the following advantages:

1. according to the cable buckle, the enclosure and the outer sleeve of the cable are integrally molded, so that no gap is reserved between the cable and the enclosure, and the sealing effect of the cable circumference can be improved. The locking structure with locking protrusion or locking groove on at least one side wall of the envelope is suitable for matching locking with the sensor housing, thereby improving the assembly accuracy.

2. According to the cable buckle provided by the utility model, the area of the top of the inner side of the sealing shell is smaller than the area of the outer side of the sealing shell, and the arrangement mode can enable the innermost volume of the sealing shell to be smaller than the outer side volume of the sealing shell, so that the sealing shell can be conveniently inserted into the sensor shell during assembly, the contact area between the sealing shell and the sensor shell and the contact area between the sealing shell and the sealing glue are increased, and the assembly efficiency and the sealing performance are improved.

3. According to the cable buckle, the sealing shell is of a multi-section step structure, so that the stability of clamping can be improved, the contact area between the sealing shell and the sensor shell is increased, and the sealing performance is improved; the locking protrusion or the locking groove of the envelope is arranged on the side wall of the step structure of the middle section, so that the clamping stability can be further improved.

4. The photoelectric sensor provided by the utility model has the advantages that the side wall of the shell is provided with the accommodating groove for accommodating the sealing shell, the accommodating groove is used as an independent cavity body and is communicated with the inner cavity of the shell through the opening to guide the penetration of the inner lead, and the inner part of the accommodating groove can be completely filled with sealant and seal the opening, so that the sealing effect of the photoelectric sensor is improved. And avoid the current point to glue after threading alone, there is the inhomogeneous problem of point to glue, the leakproofness decline.

5. According to the photoelectric sensor provided by the utility model, the cable extends outwards and upwards from the side wall of the shell in an inclined way, so that the cable can be conveniently bent upwards of the shell, and the wiring requirement under a specific application scene can be met; the casing has one section vertical lateral wall in the top of holding groove, and the lid is located the top of vertical lateral wall, the lid have with the arc outline that vertical lateral wall surface links up mutually, this arc outline's setting mode can be when above-mentioned cable is to the casing top buckling, and the bending part of guide cable prevents that the bending part is unsettled, improves cable wiring stability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a photoelectric sensor according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a cable buckle structure provided in an embodiment of the utility model;

fig. 3 is a schematic diagram of a cable buckle structure according to a second embodiment of the present utility model;

fig. 4 is a schematic diagram of a housing structure of the photoelectric sensor according to the novel embodiment;

fig. 5 is a schematic diagram of a housing structure of a photoelectric sensor according to an embodiment of the present utility model;

FIG. 6 is a diagram showing a structure of a photoelectric sensor housing and a cover according to an embodiment of the present utility model;

reference numerals illustrate:

1-shell, 11-accommodation groove, 12-clamping groove, 13-vertical side wall, 14-opening, 2-cover, 21-arc outline, 22-horizontal outline, 3-cable buckle, 31-enclosure, 32-cable, 311-locking protrusion, 312-first step, 313-second step, 314-third step, 321-inner wire, S1-first straight section, S2-second straight section, S3-arc section.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

The embodiment provides a photoelectric sensor, as shown in fig. 1, the photoelectric sensor provided in the embodiment includes a housing 1, a cover 2 located at the top of the housing 1, and a cable fastener 3 located at a side wall of the housing 1, where the housing 1, the cover 2 and the cable fastener 3 form a sealed photoelectric sensor housing; specifically, the casing 1 and the cover body 2 can be welded together by ultrasonic, the casing 1 and the cable buckle 3 are clamped together, and the casing 1 and the cable buckle 3 are fixed by sealant, so that the sealing of the photoelectric sensor is realized. A circuit board (not shown) and a conventional optical member are further provided in the housing, and therefore, the internal structure of the photoelectric sensor is not described here.

In the above photoelectric sensor, as shown in fig. 2 and 3, the cable buckle 3 includes a cable 32, the cable 32 includes an inner conductor 321 and an outer jacket surrounding the inner conductor, and an enclosure 31, the enclosure 31 is integrally injection-molded with the outer jacket, and the inner conductor 321 is inserted into the enclosure and extends toward the inside of the enclosure. The capsule 31 is injection molded with the outer jacket of the cable to form an integral preform (cable buckle) that can be prepared in advance of the assembly process of the photoelectric sensor, and the assembly process of the photoelectric sensor can be reduced to improve the assembly efficiency. Specifically, alternatively, the enclosure 31 has a three-stage step structure from the outside to the inside, as shown in fig. 2, and the areas of the steps of the first step 312, the second step 313 and the third step 314 are sequentially decreased from the outside to the inside, so that the area of the top of the inside of the enclosure is smaller than the area of the outside of the enclosure, and the arrangement mode can make the volume of the inside of the enclosure smaller than the volume of the outside of the enclosure, so that the enclosure is convenient to be inserted into the sensor housing during assembly, the contact area between the enclosure and sealant is increased, and the assembly efficiency and the tightness are improved; and locking protrusions 311 are further provided on both side walls of the second step 313. The cable buckle 3 is installed in a containing groove of the side wall of the shell, and an internal lead is inserted into an inner cavity of the shell and is electrically connected with the circuit board in the shell. And the accommodating groove is filled with sealant to realize the sealing of the shell and the cable buckle.

In the cable buckle 3 of the photoelectric sensor provided by the embodiment, the enclosure 31 and the outer sleeve of the cable 32 are integrally molded, so that no gap between the cable and the enclosure can be ensured, and the sealing effect of the cable circumference can be improved; and, the inboard top area of capsule is less than the outside area of capsule, and it can make the lateral wall extension to in its inserts the sensor casing and improve the area of contact with sensor casing and sealant when assembling, improve assembly efficiency and leakproofness. Specifically, the sealing shell is of a multi-section step structure, so that the clamping stability can be improved, and the contact area between the sealing shell and the sensor shell can be increased, so that the sealing performance can be improved; the locking bulge of the envelope is arranged on the side wall of the step structure of the middle section, so that the clamping stability can be further improved.

As an alternative embodiment, the locking protrusion of the cable clasp may be replaced by a locking groove located on the side wall of the step structure of the middle section.

As an alternative embodiment, the enclosure of the cable fastener may be a two-stage or three-stage multi-stage step structure from the outside to the inside, and the locking protrusion or the locking groove may be disposed on the side wall of the first step that is not the outermost side.

As an alternative embodiment, the step areas of the sections of the enclosure of the cable fastener may not be gradually decreased, and only the innermost step area (i.e. the inner top area) is required to be smaller than the area of the outer side of the enclosure to achieve the above effect. For example, the side walls of a step located in the middle section protrude outwards to make the capsule easier to snap into the photosensor housing.

Alternatively, the structure of the enclosure may be other structures with an inner volume smaller than an outer volume, for example, a frustum-shaped structure, where locking protrusions or locking grooves on the side walls of the enclosure may be provided on the side walls of the enclosure.

In the photoelectric sensor provided in this embodiment, the side wall of the housing 1 has a receiving groove 11 for receiving the enclosure, and the inner side wall of the receiving groove 11 has a clamping groove 12 corresponding to the locking protrusion 31 as a locking structure; when the locking protrusion of the cable fastener is replaced by the locking groove, the locking structure of the inner side wall of the accommodating groove 11 is a protruding block; the accommodating groove is communicated with the inner cavity of the shell through an opening 14, and the inner lead extends into the inner cavity of the shell through the opening 14. The accommodating groove is filled with sealant, and the opening is plugged by the sealant. The casing lateral wall of photoelectric sensor that this embodiment provided has the accommodation groove that holds the capsule, and the accommodation groove is as an solitary cavity, and it is through the inner chamber intercommunication of an opening and casing, and the inside of guiding inside wire can be fully filled with sealant to sealed opening improves photoelectric sensor's sealed effect. And avoid the current point to glue after threading alone, there is the inhomogeneous problem of point to glue, the leakproofness decline.

As an alternative embodiment, in the cable clasp of the above photoelectric sensor, the enclosure 31 has a first flat section S1 and a second flat section S2, the first flat section S1 being a section perpendicular to the outer jacket; the second straight section S2 is integrally connected to the first straight section S1 through an arc-shaped section S3, and the second straight section S2 extends obliquely to the inside of the envelope 31. The outer edges of the two sides of the accommodating groove are provided with outer contours similar to those of the sealing shell; the cable extends obliquely upward outwardly from a side wall of the housing. The cable of this setting mode upwards stretches out from the lateral wall of casing outside slope, and the cable of being convenient for is buckled to the top of casing to satisfy the demand of wiring under the specific application scene.

Optionally, the housing 1 has a vertical section of side wall 13 above the receiving slot 11; the cover 2 is located on top of the vertical side wall and has an arcuate outer profile 21 engaging the outer surface of the vertical side wall and a horizontal outer profile 22. The cooperation of this arc outline and the lateral wall 13 that erects can be when above-mentioned cable is to the casing top buckling, and the bending part of guide cable prevents that the bending part is unsettled, improves cable wiring stability.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A cable clasp, comprising:

a cable comprising an inner conductor and a jacket surrounding the inner conductor;

a capsule injection molded integrally with the outer jacket, at least one side wall of the capsule having a locking protrusion or locking groove thereon;

the inner lead penetrates through the sealing shell and extends to the inner side of the sealing shell.

2. The cable clasp of claim 1, wherein an inside top area of the enclosure is smaller than an outside area of the enclosure.

3. The cable clasp of claim 1, wherein the enclosure is a multi-stage stepped structure from the outside to the inside.

4. The cable clasp of claim 1, wherein the enclosure is a three-step structure from the outside to the inside; the locking protrusion or the locking groove is located on the side wall of the step structure of the middle section.

5. The cable clasp of any one of claims 1-4, wherein the enclosure has a first straight section and a second straight section, the first straight section being a section perpendicular to the jacket; the second straight section is integrally connected with the first straight section through an arc section, and the second straight section extends obliquely to the inner side of the envelope.

6. The photoelectric sensor comprises a shell and a cover body, and is characterized by further comprising a circuit board, wherein the circuit board is arranged in the shell; the cable clasp of any one of claims 1-5, wherein the inner wire of the cable clasp is electrically connected to the circuit board.

7. The photoelectric sensor according to claim 6, wherein the case side wall has a receiving groove that receives the envelope, an inner side wall of the receiving groove having a locking structure corresponding to the locking projection or the locking groove; the accommodating groove is communicated with the inner cavity of the shell through an opening, and the internal lead extends into the inner cavity of the shell through the opening.

8. The photoelectric sensor of claim 7, wherein the outer edges on both sides of the receiving groove have an outer contour similar to the envelope; the cable extends obliquely upward outwardly from a side wall of the housing.

9. The photoelectric sensor according to claim 8, wherein the accommodating groove is filled with a sealant, and the sealant blocks the opening.

10. The photoelectric sensor of claim 8, wherein the housing has a section of vertical side wall above the receiving recess; the cover is positioned on top of the vertical sidewall and has an arcuate outer contour that engages the outer surface of the vertical sidewall.