CN216921771U

CN216921771U - Hinge and metal box with same

Info

Publication number: CN216921771U
Application number: CN202121136979.7U
Authority: CN
Inventors: 金建伟
Original assignee: Knorr Bremse Systems for Rail Vehicles Suzhou Co Ltd
Current assignee: Knorr Bremse Systems for Rail Vehicles Suzhou Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-07-08
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a hinge and a metal box with the same, comprising: first connecting portion and second connecting portion, first connecting portion are articulated with the second connecting portion, and wherein, the hinge still includes: the conductor piece comprises a first electric connection part, a second electric connection part and a flexible part which is electrically connected with the first electric connection part and the second electric connection part; the shape of the flexible part is changed along with the opening and closing of the hinge in a matching way. The metal box comprises a box body and a box door, and the metal box also comprises a hinge; the first electric connection part and the second electric connection part are respectively electrically connected with the box body and the box door, and the first electric connection part is arranged between the first connection part and the box body; the second electric connection part is arranged between the second connection part and the box door. Be provided with the conductor on the hinge for the hinge can reach electric connection's function when mechanical connection, under the scene of using this hinge, can avoid additionally increasing electric connector, has optimized the space design.

Description

Hinge and metal box with same

Technical Field

The utility model relates to a hinge and a metal box with the hinge, in particular to a hinge with a grounding function and a metal box with the hinge.

Background

Hinges are mechanical devices used to connect two solid bodies and allow relative rotation between them, and are generally used for connecting metal boxes, doors and windows.

However, the existing hinges can only achieve mechanical connection, but cannot be used for electrical connection.

Disclosure of Invention

The utility model aims to provide a hinge and a metal box with the same.

To achieve one of the above objects, an embodiment of the present invention provides a hinge, including: first connecting portion and second connecting portion, first connecting portion with the second connecting portion are articulated, wherein, the hinge still includes: a conductor member including a first electrical connection portion, a second electrical connection portion, and a flexible portion electrically connecting the first and second electrical connection portions; the shape of the flexible part is changed along with the opening and closing of the hinge in a matching way.

As a further development of an embodiment of the utility model, the hinge is provided with a headspace, in which headspace the flexible portion is at least partially arranged.

As a further improvement of an embodiment of the present invention, the reserved space is a groove formed on the first connecting portion.

As a further improvement of an embodiment of the present invention, wherein the first connecting portion includes a first extension arm and a second extension arm; the second connecting portion comprises a third extension arm and a fourth extension arm; the first extension arm and the third extension arm are coaxially connected, the second extension arm and the fourth extension arm are coaxially connected, and the groove is formed between the first extension arm and the second extension arm.

As a further refinement of an embodiment of the present invention, wherein the second electrical connection connects the third extending arm and the fourth extending arm.

As a further improvement of an embodiment of the present invention, wherein the hinge further includes a pad plate including a first pad plate corresponding to the first electrical connection portion; and a second pad corresponding to the second electrical connection portion.

As a further improvement of an embodiment of the present invention, wherein the first electrical connection portion, the flexible portion, and the second electrical connection portion are integrally molded.

As a further improvement of an embodiment of the present invention, wherein the conductor is a metal foil.

In a further improvement of an embodiment of the present invention, the metal foil is a copper foil. The copper foil is a copper conductor formed by overlapping and welding a plurality of layers of red copper foils; the red copper foil is a red copper strip with the copper content not less than 99.95% or T2 red copper.

The utility model also provides a metal box, which comprises a box body and a box door, wherein the metal box also comprises the hinge;

the first electric connection part and the second electric connection part are respectively electrically connected with the box body and the box door, and the first electric connection part is arranged between the first connection part and the box body; the second electric connection part is arranged between the second connection part and the box door.

Compared with the prior art, the hinge has the beneficial effects that the conductive piece is arranged on the hinge, so that the hinge can achieve the function of electrical connection while being mechanically connected, and in a scene of using the hinge, the additional increase of the electric connecting piece can be avoided, and the space design is optimized.

Drawings

FIG. 1 is a perspective view of a hinge according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of a conductor at different positions in an embodiment of the present invention.

Fig. 3 is a perspective view of a case according to an embodiment of the present invention.

FIG. 4 is a side cross-sectional view of the door of the chest when closed in accordance with one embodiment of the present invention.

Fig. 5 is a side sectional view of the door of the chest at 90 ° open in accordance with one embodiment of the present invention.

FIG. 6 is a side cross-sectional view of the chest door of the chest in one embodiment of the utility model, open 180.

The reference numerals are as follows: 1. a metal case; 101. a box body; 102. a box door; 20. a hinge; 201. a first connection portion; 2011. a first extension arm; 2012 a second extension arm; 202. a second connecting portion; 2021. a third extension arm; 2022. a fourth extension arm; 203. a conductor; 2031. a first electrical connection portion; 2032. a second electrical connection portion; 2033. a flexible portion; 301. a first backing plate; 302. a second backing plate; 40. a bolt; 50. bolt holes.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes in accordance with the embodiments are within the scope of the present invention.

Also, terms used herein such as "outer," "inner," "above," "below," and the like, denote relative spatial positions, and are used for convenience in description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

Referring to fig. 1, in an embodiment of the present invention, the hinge 20 includes a first connecting portion 201 and a second connecting portion 202, and the first connecting portion 201 is hinged to the second connecting portion 202.

In the present embodiment, spline crimping is adopted for the first connection portion 201 and the second connection portion 202 to hinge. By adopting spline crimping, radial force is generated on the teeth when loaded, the automatic centering function can be realized, the uniform stress of each tooth is facilitated, the strength is high, and the service life is long.

The hinge 20 further comprises: a conductor 203, the conductor 203 includes a first electrical connection portion 2031, a second electrical connection portion 2032, and a flexible portion 2033 electrically connecting the first electrical connection portion 2031 and the second electrical connection portion 2032.

Further, the hinge 20 is provided with a reserved space, and the flexible portion 2033 is at least partially disposed in the reserved space. In the present embodiment, as shown in fig. 2, in a state where the first connection portion 201 and the second connection portion 202 of the hinge 20 are closed, the flexible portion 2033 is in a folded state, in which case the flexible portion 2033 is disposed in the reserved space, and in a state where the first connection portion 201 and the second connection portion 202 of the hinge 20 are opened, in which case the flexible portion 2033 is partially disposed in the reserved space, in which case the flexible portion 2033 is disposed. That is, the shape of the flexible portion 2033 changes in a matching manner with the opening and closing of the hinge 20.

In this embodiment, the reserved space is a groove formed on the first connecting portion 201. Specifically, the first connection portion 201 includes a first extension arm 2011 and a second extension arm 2012; the second connecting portion 202 includes a third extension arm 2021 and a fourth extension arm 2022; the first extension arm 2011 and the third extension arm 2021 are coaxially connected, the second extension arm 2012 and the fourth extension arm 2022 are coaxially connected, and a groove is formed between the first extension arm 2011 and the second extension arm 2012.

Further, a second electrical connection portion 2032 connects the third extension arm 2021 and the fourth extension arm 2022. The second connection portion 202 and the second electrical connection portion 2032 are fixedly connected by a bolt 40, two bolt holes 50 are respectively disposed at two ends of the second electrical connection portion 2032, the positions of the bolt holes correspond to the positions of the third extension arm 2021 and the fourth extension arm 2022, and the second electrical connection portion 2032 and the second connection portion 202 are fixedly connected together by the bolt 40.

In one embodiment of the present invention, the hinge is further provided with a pad plate including a first pad plate 301 corresponding to the first electrical connection portion 2031; and a second pad 302 corresponding to the second electrical connection portion 2032.

Specifically, the first pad plate 301 and the second pad plate 302 are provided with the same bolt holes 50 as those of the conductor member 203, and the first electrical connection portion 2031 and the first pad plate 301 are connected together by bolts 40, and the second electrical connection portion 2032 and the second pad plate 302 are connected together. The bolt 40 is adopted for fastening connection, so that the conditions of falling, loosening and the like can be prevented. The first pad 301 and the second pad 302 can protect the surface of the joint of the bolt 40 and the conductor 203 to increase the reliability of grounding.

In one embodiment of the present invention, the first electrical connection portion 2031, the flexible portion 2033, and the second electrical connection portion 2032 of the conductor 203 are integrally connected, and the integral connection can ensure the stability of the electrical conduction to the greatest extent while ensuring the aesthetic appearance.

The first electrical connection portion 2031 and the second electrical connection portion 2032 may be made of a flexible material or a material with high hardness, and the first electrical connection portion 2031 and the second electrical connection portion 2032 may be fixed to the first connection portion 201 and the second connection portion 202, respectively.

Specifically, the flexible portion 2033 has the characteristics of flexibility, conductivity and good ductility, can overcome the defects of forced abrasion and corrosion of a common connecting line in the prior art, and greatly prolongs the service life of the grounding of the hinge 20.

In one embodiment of the present invention, the flexible portion 2033 is a metal foil 203.

In the present embodiment, the metal foil 203 is a copper foil 203. The copper foil 203 has strong adhesive force and elongation rate, and has good effect on electrostatic discharge after grounding; strong adhesion and good conductivity. Meanwhile, the hinge is wear-resistant and corrosion-resistant, and the service life of the hinge 20 for grounding is prolonged.

In the present embodiment, the copper foil 203 is a copper conductor formed by stacking and welding a plurality of red copper foils. The red copper foil is a red copper strip with the copper content not less than 99.95% or T2 red copper. The purity of the copper foil 203 is higher than 99.95%, so that electromagnetic interference can be eliminated, and the harm of electromagnetic waves to human bodies can be isolated.

In one embodiment of the utility model, the copper foil 203 adopts a polymer diffusion welding process to dissolve the multiple layers of copper foils on the contact surface together, change the molecular structure of the copper foils, solidify the copper foils into copper blocks and then perform subsequent processing. The soft connection product of the copper foil 203 after hot melt welding is passivated, so that a protective film is generated on the surface of the cleaned copper foil 203, and corrosion is slowed down. Thereby increasing the life of the copper foil 203 on the ground hinge 20.

As shown in fig. 3, the hinge can be used for a metal box 1, for example, in a scenario using the hinge, the metal box 1 can be a power distribution cabinet, which includes a box body 101 and a box door 102, and the box body 101 and the box door 102 are movably connected through the hinge 20, so that the box door 102 can open or close an open end of the box body 101.

The first electrical connection portion 2031 and the second electrical connection portion 2032 are electrically connected to the box 101 and the box door 102, respectively, and the first electrical connection portion 2031 is disposed between the first connection portion 201 and the box 101; the second electrical connection portion 2032 is disposed between the second connection portion 202 and the door 101.

In the present embodiment, the hinge 20 is disposed on the top of the box door 102 and the box body 101, that is, the box door 102 is turned upwards to open the box body 101. Of course, in other embodiments, the hinge 20 may also be disposed at the side or bottom of the box door 102 and the box 101 to realize a door opening in a left-right flip manner or a door opening in a downward flip manner.

Generally, the box body 101 of the distribution box is grounded, so when the box door 102 is electrically connected with the box body 101, the box door 102 is automatically grounded, thereby realizing reliable grounding connection and reliably protecting operators electrically even in the case of short circuit of equipment.

The first electrical connection portion 2031 and the second electrical connection portion 2032 are electrically connected to the box 101 and the box door 102, respectively, that is, the first electrical connection portion 2031 is electrically connected to the box 101, and the second electrical connection portion 2032 is electrically connected to the box door 102.

In the present embodiment, the first and second

electrical connection portions

2031 and 2032 are provided outside the case 101.

As shown in fig. 4, the first pad 301 and the first electric connection portion 2031 are connected to each other by the bolt 40 and are provided inside and outside the casing 101, and the second pad 302 and the second electric connection portion 2032 are connected to each other by the bolt 40 and are provided inside and outside the door 102.

Specifically, the first pad 301 is fixedly disposed inside the box 101, the first electrical connection portion 2031 is disposed at a position corresponding to the outside of the box 101, the second pad 302 is fixedly disposed inside the box door 102, the second electrical connection portion 2032 is disposed at a position corresponding to the outside of the box door 102, and the first pad 301 and the second pad 302 can protect the surface of the joint portion between the bolt 40 and the box 101 and the surface of the joint portion between the bolt 40 and the box door 102, increase the contact area between the conductor 203 and the box 101, and increase the reliability of grounding.

Specifically, the first connecting portion 201, the first electrical connecting portion 2031 and the box 101 are all preset with bolt holes 50 and are sequentially and fixedly connected by bolts 40, and the second connecting portion 202, the second electrical connecting portion 2032 and the box door 102 are also preset with bolt holes 50 and are sequentially and fixedly connected by bolts 40.

When the door 102 is closed, the flexible portion 2033 is fixed between the first electrical connection portion 2031 and the second electrical connection portion 2032 in a folded state. As shown in fig. 5, when the door 102 is opened at 90 °, both ends of the flexible portion 2033 are disposed at 90 °. As shown in fig. 6, when door 102 is opened 180 °, flexible portion 2033 is straightened 180 °. Therefore, the opening and closing of the door 102 can change the opening and closing of the hinge 20 synchronously, and the opening and closing of the hinge 20 can change the shape of the flexible portion 2033, so that the flexible portion can adapt to different opening and closing states of the door 102 and the hinge 20. Specifically, the length of the flexible portion 2033 is the distance between the first connecting portion 201 and the second connecting portion 202 when the door is opened by 180 degrees, so that the appearance can be ensured, the normal opening and closing of the door 102 can be ensured, and the situation that the flexible portion 2033 is too long and is stirred together can be avoided.

In conclusion, the conductive piece is arranged on the hinge, so that the hinge can achieve the function of electric connection while being mechanically connected, the additional increase of the conductive piece can be avoided in the scene of using the hinge, and the space design is optimized.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is merely a detailed description of possible embodiments of the present invention, and it is not intended to limit the scope of the utility model, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A hinge, comprising:

first connecting portion and second connecting portion, first connecting portion with the second connecting portion are articulated, its characterized in that, the hinge still includes:

a conductor comprising a first electrical connection portion, a second electrical connection portion, and a flexible portion electrically connecting the first and second electrical connection portions; the shape of the flexible part is changed along with the opening and closing of the hinge in a matching way.

2. The hinge according to claim 1, characterized in that it is provided with a headspace in which the flexible portion is at least partially arranged.

3. The hinge according to claim 2, wherein the headspace is a recess formed in the first connecting portion.

4. The hinge of claim 3, wherein the first connection comprises a first extension arm, a second extension arm; the second connecting portion comprises a third extension arm and a fourth extension arm; the first extension arm, the third extension arm coaxial coupling, the second extension arm, the fourth extension arm coaxial coupling, form between first extension arm and the second extension arm the recess.

5. The hinge of claim 4, wherein the second electrical connection connects the third extension arm and the fourth extension arm.

6. The hinge of claim 4, further comprising a pad comprising a first pad corresponding to the first electrical connection; and a second pad corresponding to the second electrical connection portion.

7. The hinge of claim 1, wherein the first electrical connection portion, the flexible portion, and the second electrical connection portion are integrally formed.

8. The hinge of claim 1, wherein the conductor is a metal foil.

9. The hinge according to claim 8, wherein the metal foil is a copper foil, and the copper foil is a copper conductor formed by welding a plurality of layers of red copper foils together.

10. A metal box comprising a box body and a box door, wherein the metal box further comprises a hinge according to any one of claims 1 to 9;

the first electric connection part and the second electric connection part are respectively electrically connected with the box body and the box door, and the first electric connection part is arranged between the first connection part and the box body; the second electric connection portion is arranged between the second connection portion and the box door.