CN214013778U

CN214013778U - Distribution box

Info

Publication number: CN214013778U
Application number: CN202022647925.9U
Authority: CN
Inventors: 李玉; 崔颖武; 杜蓉
Original assignee: Mind Electronics Appliance Co Ltd
Current assignee: Mind Electronics Appliance Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-20
Anticipated expiration: 2030-11-16

Abstract

The utility model provides a distribution box, it is including having the box body that holds the chamber, still including locating the pencil clamping part that holds the intracavity, the pencil clamping part specifically includes clamping part and lower clamping part to be equipped with the flexure strip on last clamping part and lower clamping part at least one, this flexure strip can support tight pencil because of the connection of last clamping part and lower clamping part. Distribution box, through holding the wiring harness that the intracavity set up including clamping part and lower clamping part to be provided with the flexure strip that can support tight pencil on at least one of last clamping part and lower clamping part, so that the pencil clamping part is applicable to the pencil of the multiple different line footpaths of centre gripping, improves application scope.

Description

Distribution box

Technical Field

The utility model relates to a vehicle parts technical field, in particular to block terminal.

Background

The high-voltage system equipped for the electric automobile has the characteristics of high voltage and large current, generally, the working voltage reaches more than 300V, and the working current reaches more than 200A, so that personal safety and the use safety of high-voltage parts are possibly endangered. Therefore, when designing and planning a high-voltage power system, the power driving requirement of the whole vehicle is fully met so as to ensure the running safety of the vehicle, and the safety of drivers and passengers and the running environment safety of the vehicle are also met.

The high-voltage distribution box of the electric automobile is a distribution unit of a whole automobile high-voltage system, is generally developed on the basis of a traditional distribution box for a fuel automobile, but most high-voltage distribution boxes can only be matched with cables with single wire diameter, so that the existing distribution box is not suitable for new energy automobile models structurally or functionally.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a distribution box to improve the application range thereof.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a distribution box, includes the box body that has the chamber of holding, in be equipped with the via hole that supplies the pencil to pass on the box body, and be equipped with in the via hole and pass to the pencil in the chamber holds, the distribution box still includes:

the wire harness clamping part is arranged in the accommodating cavity and comprises an upper clamping part and a lower clamping part which are used for clamping the wire harness, an elastic sheet is arranged on at least one of the upper clamping part and the lower clamping part, and the elastic sheet is tightly abutted against the wire harness through the connection between the upper clamping part and the lower clamping part.

Further, a pressure sensor for detecting a clamping force applied to the wire harness is provided on at least one of the upper clamping portion and the lower clamping portion.

Further, the elastic sheet is arranged on the pressure sensor.

Furthermore, the elastic sheet is in a herringbone shape.

Further, an anti-falling structure is arranged on at least one of the upper clamping part and the lower clamping part, and the anti-falling structure is configured to prevent the wiring harness from falling out from between the upper clamping part and the lower clamping part.

Further, the anti-dropping structure comprises an external convex part or a concave part formed on the upper clamping part and/or the lower clamping part.

Furthermore, a support member for assembling a conductive member is fixedly arranged in the accommodating cavity, the conductive member includes at least one of a bus bar and a high-voltage fuse, and the wire harness clamping portion clamps the wire harness at an end portion of the conductive member.

Furthermore, the box body is made of cast aluminum alloy materials, and an insulating part for insulating the box body and the conductive parts is arranged in the accommodating cavity.

Furthermore, the insulating part and the supporting part are detachably connected, and the conductive part is restrained between the insulating part and the supporting part due to the connection.

Further, the box body encloses the configuration and has including the left box body and the right box body that hold the chamber, just a left side box body with be releasable connection between the right box body.

Compared with the prior art, the utility model discloses following advantage has:

(1) distribution box, through holding the wiring harness that the intracavity set up including clamping part and lower clamping part to set up the flexure strip that can support tight pencil on at least one of last clamping part and lower clamping part, can make the pencil clamping part be applicable to the pencil of the multiple different line footpaths of centre gripping, improve application scope.

(2) The pressure sensor is arranged on at least one of the upper clamping part and the lower clamping part, so that the clamping force applied to the wiring harness can be conveniently detected, and the reliability of wiring harness connection can be conveniently judged.

(3) The elastic piece is arranged on the pressure sensor, so that the wire harness can be conveniently abutted, and the clamping force applied to the wire harness can be conveniently detected, so that the connection condition of the wire harness can be conveniently monitored.

(4) The elastic sheet is in a herringbone shape, so that the wire harness can be stably and tightly propped, and the reliability of clamping the wire harness can be improved.

(5) The anti-drop structure is arranged on at least one of the upper clamping part and the lower clamping part, so that the reliability of clamping the wire harness can be further improved.

(6) The anti-falling structure is arranged as the convex part or the concave part, so that the structure is simple and the processing is convenient.

(7) The box body is made of cast aluminum alloy materials, so that mechanical impact can be prevented, various components in the accommodating cavity can be effectively protected, and electromagnetic interference can be effectively prevented.

(8) The insulating part and the supporting part are detachably connected, and the mounting and dismounting are convenient.

(9) The box body can further improve the convenience of installing and removing including dismantling the left box body and the right box body of connection.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a distribution box according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the unassembled cartridge of FIG. 1;

FIG. 3 is a schematic view of the unassembled support and insulator of FIG. 2;

fig. 4 is a schematic structural diagram of a left box body according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a supporting member according to an embodiment of the present invention;

fig. 6 is an exploded view of an insulator according to an embodiment of the present invention;

fig. 7 is an exploded view of a wire harness holding portion according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an upper clamping portion according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the lower clamping portion according to an embodiment of the present invention.

Description of reference numerals:

1. a box body; 2. a wire harness holding portion; 3. an elastic sheet; 4. a wire harness; 5. a pressure sensor; 6. an anti-falling structure; 7. a support member; 8. an upper insulating member; 9. a lower insulating member; 10. a tail clip; 11. protecting the connecting piece; 12. a bolt; 13. a seal member; 14. a bus bar; 15. a high-voltage fuse;

101. a left box body; 1011. a groove; 1012. a pipe body; 102. a right box body;

201. an upper clamping portion; 2011. an upper connecting hole; 202. a lower clamping portion; 2021. a lower connection hole;

701. a clamping part; 801. a clamping hole.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a distribution box, which mainly comprises a box body and a wire harness clamping part arranged in an accommodating cavity. The wire harness clamping part comprises an upper clamping part and a lower clamping part for clamping the wire harness, an elastic sheet is arranged on at least one of the upper clamping part and the lower clamping part, and the elastic sheet can be tightly propped against the peripheral surface of the wire harness due to the connection between the upper clamping part and the lower clamping part.

Based on overall structure description as above, an exemplary structure of the block terminal of this embodiment is as shown in fig. 1, and the shaping has the chamber of holding in box body 1, has seted up the via hole in the double-phase offside of box body 1, all wears to be equipped with pencil 4 in the via hole of both sides, and the pencil 4 of both sides wears to holding in the chamber to connect in holding the chamber and switch on.

In order to better understand the present embodiment, the structure of the cartridge 1 will be briefly described below. The box body 1 comprises a left box body 101 and a right box body 102 which are formed with accommodating cavities in a surrounding mode, and the left box body 101 and the right box body 102 are detachably connected.

In the present embodiment, the left case 101 and the right case 102 have substantially the same structure, and therefore the structure of the left case 101 shown in fig. 4 will be described as an example. In this embodiment, the left box 101 is preferably made of a cast aluminum alloy material to form a thin-wall member, which can prevent mechanical impact, effectively protect various components in the accommodating cavity, and effectively prevent electromagnetic interference.

A cavity is formed inside the left box body 101, one side of the cavity is open, the other side of the cavity is provided with a via hole, and a pipe body 1012 corresponding to each via hole is formed on the box body 1, so that the outgoing direction of the wiring harness 4 is ensured.

In addition, a groove 1011 is formed on the end surface of the left box body 101, which is connected with the right box body 102, and the groove 1011 is opened to facilitate the insertion of the annular sealing member 13. In addition, for the convenience of connection with the right box body 102, a plurality of connection holes with open circles are formed on the end surface of the left box body 101 on which the groove 1011 is formed.

The structure of the right box body 102 is approximately symmetrical to that of the left box body 101, and the difference lies in that the number of the via holes and the number of the pipe bodies 1012 on both sides are different, and the left box body 101 and the right box body 102 are connected through a connecting piece such as a bolt 12 arranged in the corresponding connecting holes of the left box body 101 and the right box body 102, so that the assembly and disassembly are convenient. Besides, other connection modes can be adopted between the left box body 101 and the right box body 102, such as welding, riveting, clamping, bonding and the like, and the detachable connection mode is preferred between the left box body 101 and the right box body for convenience of disassembly and assembly.

In the above structure, the sealing member 13 is sandwiched between the left box 101 and the right box 102, and is preferably made of Ethylene Propylene Diene Monomer (EPDM) material, so as to achieve better dust-proof, water-proof, and high-pressure/steam jet cleaning-proof effects.

Corresponding to each wire harness 4, a tail clamp 10 is respectively arranged at the outer end of each tube body 1012, and the tail clamp 10 is preferably made of polyhexamethylene adipamide (PA66) so as to better ensure the outgoing direction of the wire harness. The specific structure of the tail clip 10 can be referred to an existing structure. In order to improve the connection reliability, a protection connecting member 11, which may be a conventional shielding ring and a conventional waterproof plug, is further connected to each wire harness 4.

The structure of the unassembled box body 1 of the distribution box is shown in fig. 2, and fig. 3 is a schematic structural view of the unassembled support 7 and the insulating member in fig. 2. Referring to fig. 2, a supporting member 7 for assembling a conductive member is fixedly disposed in the accommodating cavity of the box body 1, the conductive member includes a bus bar 14, a high voltage fuse 15, and the like, and the wire harness holding portion 2 is disposed at an end portion of the conductive member and is configured to hold the wire harness 4 connected to the conductive member. The bus bar 14 is preferably made of a manganin material, the manganin material is different from a common red copper material, the inductance is small, the temperature drift coefficient is good, the conductivity is good, and the manganin bus bar is suitable for being assembled in an unstable temperature area with a high requirement on high-voltage power supply of the whole vehicle.

In this embodiment, the bus bar 14 and the high voltage fuse 15 are respectively and fixedly disposed on the upper and lower sides of the supporting member 7, and the convex clamping portions 701 are respectively formed on the left and right sides of the supporting member 7, so as to connect the insulating member.

The structure of the insulating member can be shown in fig. 6, which is used for insulating the box body 1 from the conductive member, and is preferably made of polyhexamethylene adipamide material to achieve a good insulating effect. In this embodiment, the insulating member includes an upper insulating member 8 and a lower insulating member 9 symmetrically disposed on upper and lower sides of the supporting member 7.

Go up insulating part 8 and lower insulating part 9 and all include the insulation board to and the shaping is in the curb plate of insulation board both sides, the shaping has the joint hole 801 that sets up with aforementioned joint portion 701 one-to-one on the curb plate, so that go up insulating part 8 and lower insulating part 9 joint respectively in support piece 7 upper and lower both sides, and retrain busbar 14 between last insulating part 8 and support piece 7 because of this connection, and retrain high voltage fuse 15 between lower insulating part 9 and support piece 7. Besides, the insulating member and the supporting member 7 can be connected by other methods, such as bonding and screwing, but the insulating member and the supporting member are preferably detachably connected, so that the mounting and dismounting are convenient.

The structure of the wire harness clamping part 2 can be seen from fig. 7 to 9, which is arranged at the end of the high-voltage fuse 15 in the accommodating cavity and comprises an upper clamping part 201 and a lower clamping part 202 for clamping the wire harness 4, the upper clamping part 201 and the lower clamping part 202 are preferably made of copper-iron alloy, and the yield strength is 390N/mm²Elongation 7%, conductivity 90% IACS. The structure of the upper clamping portion 201 can be seen from fig. 8, and is made of a plate-shaped material, two upper connection holes 2011 are provided on the upper clamping portion 201, and the middle portion of the upper clamping portion 201 is recessed so as to clamp the wire harness 4.

In order to accommodate wire harnesses 4 of different wire diameters, in the upper clamping part 201The concave part is fixedly connected with an elastic sheet 3, the elastic sheet 3 is preferably made of copper-nickel alloy, and the yield strength is 580N/mm²Elongation 16%, conductivity 44% IACS. In a specific structure, the elastic pieces 3 are preferably in a shape like a Chinese character 'ren', and two elastic pieces 3 are arranged along the length direction of the wire harness 4 so as to better clamp and fix the wire harness 4. In this structure, the shape of the elastic sheet 3 may be other shapes, such as an arc shape, and the number of the elastic sheets is not limited to two, such as one, three, four, etc.

In order to facilitate monitoring the connection status of the wire harness 4 in the wire harness clamping portion 2, in the embodiment, a pressure sensor 5 is further disposed on the upper clamping portion 201, and is used for detecting the clamping force applied to the wire harness 4, and mainly includes a pressure sensitive element and a signal processing unit.

The structure of the signal processing unit can refer to the prior art, the pressure sensitive element is made of the existing material, and the cross section of the pressure sensitive element is arc-shaped so as to be matched with the shape of the concave part on the upper clamping part 201. The outer surface of the pressure sensitive element is jointed with the upper clamping part 201, and the connection mode can adopt bonding, clamping and the like. The inner surface of the pressure sensitive element is bonded or clamped with a mounting plate which is not shown in the figure, and the elastic sheet 3 is mounted on the mounting plate.

According to the structure, the wire harness 4 is clamped between the upper clamping portion 201 and the lower clamping portion 202, the clamping force clamped on the wire harness 4 can be detected through the pressure sensor 5, the detection result information can be transmitted to a vehicle controller of a vehicle, so that the connection condition of the wire harness 4 can be monitored in real time, when the clamping force value is lower than a preset threshold value, the crimping failure risk is judged, and high-pressure early warning prompt is conveniently carried out.

The structure of the lower clamping portion 202 can be shown in fig. 9, and is made of a plate-shaped material, and is provided with four lower connection holes 2021, wherein two lower connection holes 2021 are used for being connected with the conductive member, and the other two lower connection holes 2021 correspond to the positions of the upper connection holes 2011 one by one, so as to connect the upper clamping portion 201 and the lower clamping portion 202 via a connection member, such as a bolt, inserted into the corresponding upper connection hole 2011 and lower connection hole 2021. It should be noted that the connection between the upper clamping portion 201 and the lower clamping portion 202 may be implemented by other fastening methods, such as welding, which may cause inconvenience in assembly and disassembly.

In order to improve the reliability of the clamping of the wire harness 4 by the upper clamping portion 201 and the lower clamping portion 202, a retaining structure 6 is formed at a position of the lower clamping portion 202 corresponding to the wire harness 4 to prevent the wire harness 4 from being released from between the upper clamping portion 201 and the lower clamping portion 202.

In a preferred embodiment, the anti-separation structure 6 includes a recessed portion formed on the lower clamping portion 202, the recessed portion includes a plurality of recessed grooves, each recessed groove is overall in a herringbone shape, the cross section of each recessed groove is in a dovetail shape, and the recessed grooves are sequentially arranged along the length direction of the wire harness 4, so that a good anti-separation effect can be achieved. In this structure, the shape of depressed part can also be other shapes, if it can be a plurality of punctiform depressed grooves, anti-disengaging structure 6 can also be the convex part of shaping on last clamping part 201 except can being the depressed part to in preventing that pencil 4 from deviating from.

In the above structure, the retaining structure 6 may be formed on the lower clamping portion 202 or on the upper clamping portion 201, but in this case, the elastic piece 3 and the pressure sensor 5 should be provided on the lower clamping portion 202 in order to clamp the wire harness 4. Further, it is of course also possible to provide the elastic piece 3 on both the upper clip portion 201 and the lower clip portion 202.

The distribution box of this embodiment, through set up the pencil 4 including last clamping part 201 and lower clamping part 202 in holding the intracavity to set up the elastic sheet 3 that can support tight pencil 4 on last clamping part 201 and at least one of lower clamping part 202, can make pencil clamping part 2 be applicable to the pencil 4 of centre gripping multiple different wire footpaths, application scope is extensive. In addition, the distribution box of this embodiment, wholly install and remove the convenience, can realize quick operation, need not instruments such as dedicated hydraulic tong, have better practicality.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a distribution box, includes box body (1) that has the chamber that holds, in be equipped with the via hole that supplies pencil (4) to pass on box body (1), and in be equipped with in the via hole and pass to pencil (4) in holding the chamber, its characterized in that, distribution box still includes:

the wire harness clamping part (2) is arranged in the accommodating cavity and comprises an upper clamping part (201) and a lower clamping part (202) which are used for clamping the wire harness (4), an elastic sheet (3) is arranged on at least one of the upper clamping part (201) and the lower clamping part (202), and the elastic sheet (3) is tightly abutted against the wire harness (4) through the connection between the upper clamping part (201) and the lower clamping part (202).

2. A distribution box according to claim 1, wherein: a pressure sensor (5) for detecting a clamping force applied to the wire harness (4) is provided on at least one of the upper clamping portion (201) and the lower clamping portion (202).

3. A distribution box according to claim 2, wherein: the elastic piece (3) is arranged on the pressure sensor (5).

4. A distribution box according to claim 1, wherein: the elastic piece (3) is in a herringbone shape.

5. A distribution box according to claim 1, wherein: an anti-falling structure (6) is arranged on at least one of the upper clamping part (201) and the lower clamping part (202), and the anti-falling structure (6) is configured to prevent the wiring harness (4) from falling out from between the upper clamping part (201) and the lower clamping part (202).

6. A distribution box according to claim 5, wherein: the anti-falling structure (6) comprises an external convex part or a concave part formed on the upper clamping part (201) and/or the lower clamping part (202).

7. A distribution box according to claim 1, wherein: and a support member (7) which is fixedly arranged in the accommodating cavity and is used for assembling a conductive member, the conductive member comprises at least one of a bus bar (14) and a high-voltage fuse (15), and the wiring harness clamping part (2) clamps the wiring harness (4) at the end part of the conductive member.

8. A distribution box according to claim 7, wherein: the box body (1) is made of cast aluminum alloy materials, and an insulating part for insulating the box body (1) and the conductive parts is arranged in the accommodating cavity.

9. A distribution box according to claim 8, wherein: the insulating part and the supporting part (7) are detachably connected, and the conductive part is restrained between the insulating part and the supporting part (7) due to the connection.

10. A distribution box according to any of claims 1-9, wherein: the box body (1) comprises a left box body (101) and a right box body (102) which are formed by enclosing, and the left box body (101) and the right box body (102) are detachably connected.