CN216597068U - Cable assembly, junction box and camera - Google Patents

Abstract

The application discloses cable subassembly, including cable, rigid connection spare, waterproof structure spare and flexible connection spare, waterproof structure spare centers on the cable, and with the sealed cooperation of cable, and rigid connection spare centers on the cable, forms annular clearance cavity between rigid connection spare and the cable. Thus, the flexible connecting piece is filled in the annular clearance cavity through injection molding and is coated with the waterproof structural part; the flexible connecting piece is in sealing fit with the cable; the cable, the rigid connecting piece and the waterproof structural piece are connected with the flexible connecting piece in an injection molding mode respectively, the material cost of the cable assembly is reduced, the assembly complexity is reduced, and the application further discloses a junction box and a camera.

Description

Cable assembly, junction box and camera

Technical Field

The application relates to the technical field of security equipment, in particular to a cable assembly, a junction box and a camera.

Background

The cable assembly of the camera in the related art is used for connecting the shell and is formed by assembling the cable with various injection molding parts and glue pouring parts. It is expected that such a structure of the cable assembly in the related art involves a large number of kinds of materials, which increases material costs, and as a result, the assembly process of the cable assembly is complicated due to the large number of kinds of materials involved.

SUMMERY OF THE UTILITY MODEL

The invention provides a cable assembly, a junction box and a camera, and aims to solve the problems of complex assembly process and high cost caused by excessive material types of the cable assembly.

A cable assembly comprises a cable, a rigid connecting piece, a waterproof structural piece and a flexible connecting piece, wherein the waterproof structural piece surrounds the cable and is in sealing fit with the cable; the flexible connecting piece is filled in the annular clearance cavity in an injection molding manner and covers the waterproof structural part; the flexible connecting piece is in sealing fit with the cable; the cable, the rigid connecting piece and the waterproof structural part are respectively connected with the flexible connecting piece in an injection molding mode.

Further, waterproof structure includes shell and the waterproof body, and the cable is located to inside cavity of shell, and the cover encloses into the annular between shell and the cable and holds the chamber, and the waterproof body is located the annular and is held the chamber, and waterproof body seals up the cooperation with the cable, and the shell is moulded plastics with flexible connectors and is linked to each other.

Further, the waterproof body is a thermosetting waterproof material or a heat-shrinkable waterproof material.

Further, the cable assembly further comprises a sealant, the rigid connecting piece is provided with a first through mounting hole, the flexible connecting piece is provided with a sealing end, the flexible connecting piece is filled in the first mounting hole, the sealing end is provided with a potting groove, the cable stretches into the potting groove, and the sealant is filled in the potting groove and surrounds the cable.

Further, the cable subassembly is still sealed including gluing, and rigid connection spare is equipped with the first mounting hole that link up, and first mounting hole is including the filling part and the reservation part that communicate each other, and flexible connection spare has sealed end, and flexible connection spare fills and sets up in the filling part of first mounting hole, and the reservation part of first mounting hole forms the encapsulating groove, and sealed end orientation encapsulating groove, cable one end warp sealed end stretch into the encapsulating groove, sealed glue fill set up in the encapsulating groove, and to the cable center on.

Further, the cable assembly further comprises a sealing ring, and the sealing ring is arranged on the outer periphery of the rigid connecting piece.

Further, the material of the rigid connector is at least one of ABS plastics, PBT plastics, PA plastics, PP plastics and PC plastics, and the material of the flexible connector is PVC plastics.

A junction box comprises a machine shell and a cable assembly, wherein the machine shell is provided with an inner cavity and a second mounting hole which are communicated with each other, a rigid connecting piece penetrates through the second mounting hole and is connected with the machine shell, and at least part of a cable extends into the inner cavity through a flexible connecting piece.

Furthermore, the junction box also comprises a connecting bolt, a connecting disc is arranged on the periphery of the rigid connecting piece, the connecting disc is provided with a through connecting hole, the shell is provided with a threaded hole, and the connecting hole, the threaded hole and the connecting bolt are matched with each other; the connecting bolt penetrates through the connecting hole and is in threaded connection with the threaded hole, and the rigid connecting piece is connected with the shell through the connecting bolt.

A camera includes a junction box.

The invention has the following beneficial effects:

the application discloses cable subassembly, including cable, rigid connection spare, waterproof structure spare and flexible connection spare, waterproof structure spare centers on the cable, and with the sealed cooperation of cable, and rigid connection spare centers on the cable, forms annular clearance cavity between rigid connection spare and the cable.

Thus, the flexible connecting piece is filled in the annular clearance cavity through injection molding and is coated with the waterproof structural part; the flexible connecting piece is in sealing fit with the cable; the cable, the rigid connecting piece and the waterproof structural part are respectively connected with the flexible connecting piece in an injection molding mode to form a whole.

It can be seen that the cable assembly of this assembly will reduce material costs and reduce assembly complexity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a block diagram of a cable assembly disclosed in a first embodiment of the present application;

FIG. 2 is a diagram of the connection of a cable assembly to a housing as disclosed in the first embodiment of the present application;

FIG. 3 is a block diagram of a cable assembly disclosed in a second embodiment of the present application;

fig. 4 is a diagram of the connection relationship between the cable assembly and the housing according to the second embodiment of the present application.

Description of reference numerals:

100-cable, 200-casing,

310-rigid connecting piece, 311-connecting disc, 320-flexible connecting piece, 330-glue pouring groove,

400-sealing ring, 500-waterproof structural member, 510-shell, 520-waterproof body, 600-sealant and 700-connecting bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 to 2 show a first embodiment of the present application. Fig. 1 is a diagram of a cable assembly disclosed herein, and fig. 2 is a diagram of a junction box disclosed herein. The junction box is formed by assembling a cable assembly with the cabinet 200, the junction box can be used for a camera, the cable 100 in the cable assembly is used for connecting the camera to serve as a power and signal transmission medium of the camera, and the cabinet 200 can provide shade protection for the camera, and the cable assembly is described first below.

As shown in fig. 1, the cable assembly of the present application may include a cable 100, a rigid connector 310, a waterproof structure 500, and a flexible connector 320. Where the cable 100 is connected to a camera as described above, the flexible connector 320 may serve as a connection medium between the cable 100 and the rigid connector 310.

The specific assembly process of the cable assembly can be performed by adopting a secondary injection molding or double-shot injection molding mode, and the secondary injection molding is taken as an example for introduction:

the rigid connector 310 is molded in a plastic mold. And the number of the first and second groups,

the waterproof structure 500 is wrapped around the cable 100 and sealingly engaged with the cable 100. For example, the waterproof structure 500 may be disposed on the cable 100 by coating, wrapping, injection molding, and filling, so as to achieve the waterproof effect.

Then, the rigid connector 310 is removed from the plastic mold, and is placed into a secondary mold together with the cable 100 and the waterproof structure 500, and the two are positioned separately. After positioning, the rigid connector 310 surrounds the cable 100, and an annular clearance cavity is formed between the rigid connector 310 and the cable 100.

Then, the flexible connector 320 is injection-molded and filled in the annular gap cavity and covers the waterproof structure 500. With the arrangement, the flexible connector 320 is in sealing fit with the cable 100, so as to achieve a waterproof effect.

After the injection molding and filling, the cable 100, the rigid connector 310 and the waterproof structure 500 are respectively connected to the flexible connector 320 by injection molding, and the assembly of the cable assembly is completed.

It can be seen that, by the injection molding and filling manner of the flexible connector 320, the cable 100, the rigid connector 310, the waterproof structural member 500 and the flexible connector 320 are integrated, so that the assembly of the cable assembly is realized, the material cost is reduced, the assembly complexity is reduced, the structure of the cable assembly is convenient to disassemble, and the cable assembly can be replaced and maintained as required in later use.

Meanwhile, in this arrangement, the rigid connector 310 and the flexible connector 320 are arranged to avoid directly connecting the cable 100 to the chassis 200 when assembling the junction box, so as to protect the cable 100. Specifically, the rigid connection member 310 itself has a better deformation resistance, can be used as a main bearing member of the cable assembly, and can keep the cable assembly in a good shape, so as to prevent the flexible connection member 320 from deforming and failing after being used for a long time.

And flexible connection piece 320 can realize buffer protection to cable 100 owing to have the flexibility characteristic, and flexible connection piece 320 can have sealing function simultaneously, and then can avoid appearing the gap between cable 100 and the flexible connection piece 320, so can be as shown in figure 1 mutually support with waterproof structure 500, improve the water-proof effects of the device of this application.

Specifically, in practical use, the cable 100 generally needs to be connected with electronic components of a camera, the flexible connecting member 320 is arranged in a manner that a certain sealing effect can be generated on the cable 100, and the waterproof effect on the cable 100 can be enhanced by matching with the waterproof structural member 500, in other words, the waterproof structural member 500 and the flexible connecting member 320 are matched with each other to block water stains from flowing into the electronic components along the cable 100, so that damage to the camera caused by abnormalities such as short circuit is prevented, and the camera is protected from water well.

Further, as for the specific arrangement of the rigid connector 310 and the flexible connector 320, both the rigid connector 310 and the flexible connector 320 may be plastic members, for example, the rigid connector 310 may be hard glue, such as at least one of ABS plastic, PBT plastic, PA plastic, PP plastic, and PC plastic, and the flexible connector 320 may be soft glue, such as PVC plastic, silicone, and the like.

Further, the flexible connecting member 320 and the waterproof structure 500 can be both made of flexible materials, and the injection molding connection at the position can integrate the flexible connecting member 320 and the waterproof structure 500, so that a gap is better prevented from being formed between the binding surfaces of the flexible connecting member and the waterproof structure, and a better sealing effect is ensured.

In other alternative embodiments, the waterproof structure 500 and the flexible connector 320 may be arranged in sequence along the length of the cable 100 to respectively perform the waterproof sealing function, and will not be described in detail herein.

Further, the waterproof structure 500 may be a hollow design or other design that enables sealing. The waterproof structure 500 may include a housing 510 and a waterproof body 520. The housing 510 is hollow and is sleeved on the cable 100, for example, the housing 510 surrounds the cable 100 by injection molding and is connected to the cable 100 by injection molding.

Meanwhile, an annular accommodating cavity can be formed between the shell 510 and the cable 100 in a surrounding mode, the waterproof body 520 is filled in the annular accommodating cavity, and the waterproof body 520 can be made of thermosetting waterproof materials, thermal shrinkage waterproof materials and the like so as to keep a good waterproof effect. The thermosetting waterproof material can be one or more of phenolic resin, urea resin, melamine resin, unsaturated polyester resin, epoxy resin, organic silicon resin and polyurethane, and the thermal shrinkage waterproof material can be one or more of TPE, TPV and TPR. Thus, the waterproof structure 500 can be hermetically matched with the cable 100 through the waterproof body 520, so as to achieve waterproofing. And waterproof structure 500 can pass through shell 510 with flexible connection piece 320 is moulded plastics and is linked to each other, and shell 510 can make waterproof body 520 comparatively convenient setting to can play the support design effect to waterproof structure 500, prevent that waterproof body 520 from being excessively extruded.

In some alternative embodiments, the cable assembly may further include a sealing ring 400, the sealing ring 400 being provided at an outer circumferential portion of the rigid coupler 310. The waterproof structure 500 and the flexible connector 320 are used for waterproof sealing of the cable 100, leakage of the inner structure of the cable assembly can be prevented, the self-sealing requirement of the cable assembly is met, and the requirement of the cable assembly for external sealing can be met due to the arrangement of the sealing ring 400.

Specifically, when the cable assembly is connected to the cabinet 200 to assemble the junction box, the cable assembly is threaded through the cabinet 200 by the rigid connection member 310. The cabinet 200 may be provided with a second mounting hole, the rigid connector 310 may be inserted into the second mounting hole, and the sealing ring 400 may be located between the rigid connector 310 and the cabinet 200, and the rigid connector 310 is in sealing engagement with the cabinet 200 through the sealing ring 400 to exhaust a gap between the cable assembly and the cabinet 200. Under the sealing action of the sealing ring 400, the functions of water resistance, air tightness and dust prevention can be realized, so that the components in the machine shell 200 are prevented from being polluted, and the requirement of 'external sealing' of the cable assembly is met.

More specifically, a ring-shaped slot may be provided at an outer circumferential portion of the rigid connector 310. When the cable is installed, the sealing ring 400 is clamped in the annular clamping groove, and then the cable assembly and the sealing ring 400 are integrally installed in the second installation hole, so that the assembling and disassembling portability can be further improved.

In some alternative embodiments, to further enhance the sealing performance of the cable assembly, the cable assembly may further include a sealant 600, as shown in fig. 1 and 2. The rigid connector 310 is provided with a first mounting hole therethrough, and the flexible connector 320 is filled in the first mounting hole. The flexible connecting member 320 has a sealing end and an extending end, wherein the sealing end is provided with a glue filling groove 330, and the cable 100 extends into the glue filling groove 330 and extends out of the sealing end through the glue filling groove 330. The sealant 600 is filled in the sealant filling groove 330 and surrounds the cable 100. The arrangement of the sealant 600 can block the gap between the cable 100 and the flexible connecting member 320, thereby achieving a better sealing effect.

Furthermore, the sealing end and the extending end of the flexible connecting piece 320 can extend out of the first mounting hole, and the cross-sectional area of the sealing end and the cross-sectional area of the extending end are larger than that of the first mounting hole, so that an annular clamping groove between the sealing end and the extending end is formed in the flexible connecting piece 320, the rigid connecting piece 310 is clamped in the annular clamping groove, the rigid connecting piece 310 is limited, and the cable assembly is more stable in structure.

It should be noted that the sealant 600 and the sealing ring 400 are optional sealing elements, and specifically, one or more of the sealant 600 and the sealing ring 400 may be optional in the cable assembly according to the waterproof grade of the cable assembly.

Fig. 3 and 4 show a second embodiment of the present application, which is more compact and simpler to assemble than the first embodiment, but which, of course, achieves a lower level of water resistance.

Specifically, in the second embodiment, the first mounting hole of the rigid connector 310 includes a filling portion and a reserved portion that are communicated with each other. The flexible connecting piece 320 is filled in the filling part of the first mounting hole, the reserved part of the first mounting hole forms a glue pouring groove 330, the sealing end of the flexible connecting piece 320 is positioned in the first mounting hole and faces the glue pouring groove 330, and the extending end of the flexible connecting piece 320 extends out of the first mounting hole. One end of the cable 100 extends into the glue filling groove 330 through the sealing end, and the sealant 600 is filled in the glue filling groove 330 and surrounds the cable 100. The sealant 600 arranged in this way can also block the gap between the cable 100 and the flexible connecting member 320, thereby achieving a better sealing effect.

It should be noted that, in addition to the second embodiment of the present application shown in fig. 3 and 4, a waterproof structure 500 may also be added as a third embodiment of the present application.

Specifically, the third embodiment is: on the basis of the second embodiment, the waterproof structure 500 is sleeved on the cable 100, and the flexible connector 320 is used for coating the waterproof structure 500 and connecting with the waterproof structure 500 by injection molding, so as to improve the sealing and waterproof effects, and detailed description is omitted here.

The junction box is described as follows:

as described above, the junction box may include the cabinet 200 and the cable assembly, the cabinet 200 has an inner cavity and a second mounting hole which are communicated with each other, the rigid connector 310 is inserted into the second mounting hole and connected to the cabinet 200, and at least a portion of the cable 100 extends into the inner cavity of the cabinet 200 through the flexible connector 320. The inner cavity can be provided with components of the camera, and the cable 100 can be electrically connected with the relevant components.

It should be noted that, after the assembly is completed, the side of the cable assembly where the glue filling groove 330 is disposed faces the inner cavity of the chassis 200, so that the filled sealant 600 is also protected by the shield of the chassis 200 to prevent contamination such as dust.

Among them, the connection between the rigid connection member 310 and the housing 200 can be realized in many ways. For example, the clamping is realized by a clamping hole of a buckle; for another example, the second mounting hole is a threaded hole, the rigid connector 310 has an external thread matching the threaded hole, and the rigid connector 310 is screwed into the second mounting hole. The method adopted by the application is as follows: the junction box comprises a connecting bolt 700, a connecting disc 311 is arranged on the periphery of the rigid connecting piece 310, a through connecting hole is formed in the connecting disc 311, a threaded hole is formed in the machine shell 200, and the connecting hole, the threaded hole and the connecting bolt 700 are matched with each other; the connection bolt 700 is inserted into the connection hole and is threadedly connected to the threaded hole, and the rigid connection member 310 is connected to the housing 200 through the connection bolt 700. Such detachable connection may improve the efficiency of assembly between the cable assembly and the cabinet 200. Here, the connection pad 311 may be in various shapes such as a square shape, a circular shape, and a quasi-circular shape, and the present application is not particularly limited.

As described above, the present application further discloses a camera, in which the junction box is a component of the camera, the junction box realizes the shielding protection of the camera through the housing 200, and transmits electric energy, signals and the like for components inside the camera through the cable 100, and the camera may be a common optical camera, an infrared camera and the like, and the present application does not make specific requirements.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A cable assembly characterized by: comprises a cable (100), a rigid connecting piece (310), a waterproof structural piece (500) and a flexible connecting piece (320),

the waterproof structure (500) surrounds the cable (100) and is in sealing fit with the cable (100),

the rigid connector (310) surrounds the cable (100), and an annular clearance cavity is formed between the rigid connector (310) and the cable (100); the flexible connecting piece (320) is filled in the annular clearance cavity in an injection molding mode and covers the waterproof structural piece (500); the flexible connector (320) is in sealing fit with the cable (100);

the cable (100), the rigid connecting piece (310) and the waterproof structural part (500) are connected with the flexible connecting piece (320) in an injection molding mode respectively.

2. The cable assembly of claim 1, wherein: the waterproof structure (500) comprises a shell (510) and a waterproof body (520),

the shell (510) is hollow and sleeved on the cable (100), an annular accommodating cavity is defined between the shell (510) and the cable (100), the waterproof body (520) is arranged in the annular accommodating cavity,

the waterproof body (520) is in sealing fit with the cable (100), and the shell (510) is connected with the flexible connecting piece (320) in an injection molding mode.

3. The cable assembly of claim 2, wherein: the waterproof body (520) is a thermosetting waterproof material or a thermal shrinkage waterproof material.

4. The cable assembly of claim 1, wherein: the cable assembly further includes a sealant (600),

the rigid connecting piece (310) is provided with a first through mounting hole, the flexible connecting piece (320) is provided with a sealing end, the flexible connecting piece (320) is filled in the first mounting hole,

the sealed end is equipped with encapsulating groove (330), cable (100) stretch into encapsulating groove (330), sealed glue (600) fill set up in encapsulating groove (330) and right cable (100) surround.

5. The cable assembly of claim 1, wherein: the cable assembly further includes a sealant (600),

the rigid connecting piece (310) is provided with a first through mounting hole which comprises a filling part and a reserved part which are communicated with each other,

the flexible connecting piece (320) is provided with a sealing end, the flexible connecting piece (320) is filled in a filling part arranged in the first mounting hole, a glue pouring groove (330) is formed in a reserved part of the first mounting hole, the sealing end faces the glue pouring groove (330), one end of the cable (100) extends into the glue pouring groove (330) through the sealing end,

the sealant (600) is filled in the sealant filling groove (330) and surrounds the cable (100).

6. The cable assembly of claim 1, wherein: the cable assembly further comprises a sealing ring (400), wherein the sealing ring (400) is arranged on the outer periphery of the rigid connecting piece (310).

7. The cable assembly of claim 1, wherein: the rigid connecting piece (310) is made of at least one of ABS plastic, PBT plastic, PA plastic, PP plastic and PC plastic,

the flexible connecting piece (320) is made of PVC plastic.

8. A terminal block, characterized by: comprising a housing (200) and a cable assembly according to any one of claims 1 to 7,

the machine shell (200) is provided with an inner cavity and a second mounting hole which are communicated with each other, the rigid connecting piece (310) is arranged in the second mounting hole in a penetrating way and is connected with the machine shell (200),

at least a portion of the cable (100) extends into the lumen through the flexible connector (320).

9. The junction box of claim 8, wherein: the junction box further comprises a connection bolt (700),

a connecting disc (311) is arranged on the periphery of the rigid connecting piece (310), a through connecting hole is formed in the connecting disc (311), a threaded hole is formed in the machine shell (200), and the connecting hole, the threaded hole and the connecting bolt (700) are matched with each other;

the connecting bolt (700) penetrates through the connecting hole and is in threaded connection with the threaded hole, and the rigid connecting piece (310) is connected with the machine shell (200) through the connecting bolt (700).

10. A camera, characterized by: comprising a junction box according to any one of claims 8 to 9.

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