CN212848710U

CN212848710U - Power battery high-low voltage electric connection fixing structure and power battery pack

Info

Publication number: CN212848710U
Application number: CN202022055278.2U
Authority: CN
Inventors: 孙永健; 王明; 宋博涵; 卢军; 赵豪儒
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-03-30
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a fixed knot constructs and power battery package are connected to power battery high-low voltage electricity, it belongs to car technical field, fixed knot constructs is connected to power battery high-low voltage electricity, include: the high-voltage electric connecting row is a bare metal connecting row; a low-voltage wire harness including an insulating layer; connect fixed knot to construct, for insulating material, connect fixed knot to construct and include: the high-voltage fixing part comprises an upper cover, and one side of the upper cover is provided with an accommodating space for fixing the high-voltage electric connecting row; the low-voltage fixing part is arranged on the other side of the upper cover and used for fixing the low-voltage wire harness; the extending direction of the high-voltage electric connection row is perpendicular to the extending direction of the low-voltage wire harness. The power battery pack comprises the power battery high-low voltage electric connection fixing structure. The utility model discloses can reduce cost, and can avoid high-voltage electricity run-on and low pressure pencil to take place wearing and tearing at the driving in-process, promote the security performance of power battery package.

Description

Power battery high-low voltage electric connection fixing structure and power battery pack

Technical Field

The utility model relates to the technical field of automobiles, especially, relate to a fixed knot constructs and power battery package are connected to power battery high-low voltage electricity.

Background

With the continuous popularization of new energy vehicles, the preservation quantity of the new energy vehicles on the market is greatly increased.

The power battery pack is arranged on the new energy automobile and used for providing a power source for the new energy automobile. The safety design of the power battery pack has very important influence on the safety performance of the new energy automobile.

And a high-low voltage system is arranged in the power battery pack. Due to the fact that the arrangement space is limited, the power battery pack on the new energy automobile often has the phenomenon that a high-voltage wire harness and a low-voltage wire harness are mutually overlapped. In the driving process of an automobile, the high-voltage wire harness and the low-voltage wire harness which are mutually overlapped easily cause failure of a power battery pack due to mutual movement abrasion, and further easily cause safety accidents of the power battery.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fixed knot constructs and power battery package are connected to power battery high-low voltage electricity to the mutual overlap joint of high-pressure pencil and low pressure pencil that exists among the solution prior art leads to the technical problem that the power battery package became invalid because of the mutual motion wearing and tearing easily.

As the conception, the utility model adopts the technical proposal that:

a high-low voltage electric connection fixing structure of a power battery comprises:

the high-voltage electric connecting row is a bare metal connecting row;

a low voltage wire harness including an insulating layer;

connect fixed knot to construct, for insulating material, connect fixed knot to construct and include:

the high-voltage fixing part comprises an upper cover, and an accommodating space for fixing the high-voltage electric connecting row is formed in one side of the upper cover;

the low-voltage fixing part is arranged on the other side of the upper cover and used for fixing the low-voltage wire harness;

the extending direction of the high-voltage electric connection row is perpendicular to the extending direction of the low-voltage wiring harness.

Optionally, the high-voltage fixing part further comprises a lower housing, the lower housing is connected with the upper cover and forms an accommodating space with openings at two ends, and the high-voltage electric connecting bar penetrates through the accommodating space.

Optionally, two opposite sides of the upper cover in the length direction are connected with the lower shell through a buckle structure.

Optionally, the lower housing is integrally formed with the upper cover.

Optionally, one side of the upper cover along the length direction is rotatably connected with the lower shell, and the other side of the upper cover is connected with the lower shell through a buckling structure.

Optionally, the low pressure fixed part is the flexible material preparation, including first portion and second portion, the one end of first portion set firmly in the upper cover, the one end of second portion set firmly in the upper cover, the other end of first portion can with the other end joint of second portion is in order to fix the low pressure pencil.

Optionally, the low voltage fixing part includes two third portions that set up relatively, the third portion includes first vertical portion and arc portion, first vertical portion is located perpendicularly the upper cover, two the arc portion is relative and the interval sets up, two clearance between the arc portion is less than the diameter of low voltage pencil.

Optionally, the opposite both sides of upper cover along length direction all are equipped with high-voltage electricity and connect row mounting, high-voltage electricity connects row mounting to include:

a second vertical portion provided perpendicular to the upper cover and extending toward a side away from the low-voltage fixing portion;

the bearing part is arranged at the end part of the second vertical part and used for bearing the high-voltage electric connecting row, and the bearing part extends towards the inner side of the accommodating space.

Optionally, at least two high-voltage electrical connection row fixing pieces are arranged on either side of the upper cover in the length direction.

A power battery pack comprises the power battery high-low voltage electric connection fixing structure.

The utility model provides a fixed knot of power battery high-low voltage electricity connection structure has following advantage:

the high-voltage electric connection row and the low-voltage wire harness are fixed by a connection fixing structure made of insulating materials, so that the relative positions of the high-voltage electric connection row and the low-voltage wire harness are fixed, the low-voltage wire harness is fixed on one side of the upper cover, the high-voltage electric connection row is fixed on the other side of the upper cover, the high-voltage electric connection row and the low-voltage wire harness are separated by the upper cover, the extending direction of the high-voltage electric connection row is perpendicular to the extending direction of the low-voltage wire harness, abrasion of the high-voltage electric connection row and the low-voltage; because connect fixed knot to construct for insulating material, set up high-voltage electricity to connect the row into the exposed metal run-on, need not to set up the insulating casing of high-voltage electricity run-on, can material saving cost.

The utility model provides a power battery package, reduce cost, and can avoid high-voltage electricity connecting row and low pressure pencil to take place wearing and tearing at the driving in-process, promote the security performance of power battery package.

Drawings

Fig. 1 is a schematic structural view of a high-low voltage electric connection fixing structure of a power battery according to an embodiment of the present invention;

FIG. 2 is an exploded view of the connection fixture of FIG. 1;

fig. 3 is a schematic structural view of a high-low voltage electric connection fixing structure of a power battery provided in the second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a connection fixing structure provided in a third embodiment of the present invention;

fig. 5 is an exploded schematic view of a connection fixing structure according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connection fixing structure provided in the fifth embodiment of the present invention.

In the figure:

1. a high voltage electrical connection bank;

2. a low voltage wire harness;

3. connecting and fixing structures;

31. a high-voltage fixing part; 311. a lower housing; 312. an upper cover; 3121. a lug; 313. an accommodating space; 314. the high-voltage electric connection row fixing piece; 3141. a second vertical portion; 3142. a receiving part;

32. a low-pressure fixing part; 321. a first part; 322. a second section; 323. a third section; 3231. a first vertical portion; 3232. an arc-shaped portion;

4. a buckle structure; 41. the first clamping convex block.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a high-low voltage electric connection fixing structure for a power battery.

Specifically, in the present embodiment, the power battery high-low voltage electric connection fixing structure includes a high-voltage electric connection row 1, a low-voltage wire harness 2 and a connection fixing structure 3.

The high-voltage electric connection bar 1 is a bare metal connection bar, namely the high-voltage electric connection bar 1 is bare metal and is not provided with an insulating layer, so that the material cost is saved; the low-voltage wire harness 2 includes an insulating layer; the connecting and fixing structure 3 is made of insulating material.

Specifically, in the present embodiment, the high voltage electrical connection row 1 is a sheet metal, and two ends of the sheet metal are respectively provided with one connection hole.

The connection fixing structure 3 includes a high-voltage fixing portion 31 and a low-voltage fixing portion 32. The high voltage fixing part 31 comprises an upper cover 312, and one side of the upper cover 312 is provided with an accommodating space 313 for fixing the high voltage power connection row 1; the low-voltage fixing portion 32 is provided on the other side of the upper cover 312, and is used to fix the low-voltage wire harness 2.

The extending direction of the high-voltage electric connection row 1 is perpendicular to the extending direction of the low-voltage wiring harness 2, so that the high-voltage electric connection row 1 is prevented from contacting with the low-voltage wiring harness 2.

Specifically, in the present embodiment, the low-voltage fixing portion 32 is made of a flexible material, and includes a first portion 321 and a second portion 322, one end of the first portion 321 is fixedly disposed on the upper cover 312, and the other end is a free end; one end of the second portion 322 is fixed to the upper cover 312, and the other end is a free end; the other end of the first portion 321 can be snapped with the other end of the second portion 322 to fix the low voltage wire harness 2.

Specifically, the free end of the second portion 322 is provided with a second snap-fit projection, and the free end of the first portion 321 is provided with a second snap-fit slot. When needing fixed low pressure pencil 2, break away from second joint slotted hole with second joint lug for first portion 321 and second portion 322 wrap around low pressure pencil 2, then with second joint lug joint in second joint slotted hole, accomplish low pressure pencil 2 fixed.

Further, in this embodiment, the high voltage fixing portion 31 further includes a lower housing 311, the lower housing 311 is connected to the upper cover 312 and forms an accommodating space 313 with openings at two ends, and the high voltage electrical connection bar 1 penetrates through the accommodating space 313.

Specifically, in the present embodiment, the lower case 311 includes a bottom plate and side plates located at opposite sides of the bottom plate in the length direction.

Optionally, in this embodiment, two opposite sides of the upper cover 312 in the length direction are connected to the lower housing 311 by the snap structure 4.

Specifically, in the present embodiment, the fastening structure 4 includes a first snap groove and a first snap projection 41 matching with the first snap groove.

Two opposite sides of the upper cover 312 along the length direction are provided with lugs 3121 perpendicular to the upper cover 312, the first snap groove hole is formed on the lugs 3121, and the outer walls of two side plates of the lower housing 311 are provided with first snap protrusions 41.

Optionally, a wall thickness reduction groove may be formed on the lower surface of the bottom plate of the lower housing 311 to reduce the thickness of a portion of the bottom plate, so as to improve the heat dissipation effect of the high-voltage power strip 1.

Optionally, the upper surface of the upper cover 312 may also be provided with a wall thickness reduction groove to reduce the thickness of a portion of the upper cover 312, so as to improve the heat dissipation effect of the high-voltage electrical connection row 1.

Example two

Referring to fig. 3, the present embodiment provides a high-low voltage electrical connection fixing structure for a power battery, which is different from the first embodiment in that a lower housing 311 and an upper cover 312 are integrally formed, and the manufacturing is convenient.

EXAMPLE III

Referring to fig. 4, the present embodiment provides a high-low voltage electrical connection fixing structure for a power battery, which is different from the first embodiment in that one side of the upper cover 312 along the length direction is rotatably connected to the lower housing 311, and the other side is connected to the lower housing 311 through a snap structure 4, so as to avoid the dispersion of components.

Specifically, in this embodiment, one side of the upper cover 312 in the length direction is hinged or non-metal flexibly connected to the lower housing 311, so that the upper cover 312 can rotate relative to the lower housing 311.

Specifically, in the present embodiment, the fastening structure 4 includes a first snap groove and a first snap projection 41 matching with the first snap groove. The other side of the upper cover 312 along the length direction is provided with a lug 3121 perpendicular to the upper cover 312, a first snap groove hole is formed on the lug 3121, and the outer wall of one side plate of the lower housing 311 is provided with a first snap projection 41 matched with the first snap groove hole.

Example four

Referring to fig. 5, the present embodiment provides a high-low voltage electrical connection fixing structure for a power battery.

Specifically, in the present embodiment, the low-voltage fixing portion 32 is made of a hard material and includes two third portions 323 arranged opposite to each other, each third portion 323 includes a first vertical portion 3231 and an arc portion 3232, the first vertical portion 3231 is perpendicularly disposed on the upper cover 312, the two arc portions 3232 are arranged opposite to each other and spaced apart from each other, and a gap between the two arc portions 3232 is smaller than a diameter of the low-voltage wire harness 2, so that the low-voltage wire harness 2 is prevented from being separated from the low-voltage fixing portion 32 through the gap.

EXAMPLE five

Referring to fig. 6, the present embodiment provides a high-low voltage electrical connection fixing structure for a power battery.

Specifically, in this embodiment, the two opposite sides of the upper cover 312 along the length direction are provided with high-voltage electrical connection row fixing members 314, and the high-voltage electrical connection row fixing members 314 include a second vertical portion 3141 and a bearing portion 3142.

Specifically, the second upright portion 3141 is provided perpendicular to the upper cover 312 and extends toward a side away from the low-pressure fixing portion 32; the receiving portion 3142 is provided at an end of the second vertical portion 3141 for receiving the high voltage power connector 1, and the receiving portion 3142 extends toward the inside of the accommodating space 313 to stably receive the high voltage power connector 1.

That is, in this embodiment, the upper cover 312 and the high voltage electrical connection row fixing member 314 disposed opposite to each other are surrounded to form the accommodating space 313, so that the accommodating space 313 is surrounded by less material, and the processing material is saved.

Preferably, in order to ensure the stability of the fixing of the high voltage electrical connection row 1, in this embodiment, at least two high voltage electrical connection row fixing members 314 are provided on either side of the upper cover 312 in the length direction.

EXAMPLE six

The embodiment provides a power battery pack, and the power battery pack comprises the power battery high-low voltage electric connection fixing structure in any one of the above embodiments.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fixed knot constructs is connected to power battery high-low voltage electricity which characterized in that includes:

the high-voltage power supply comprises a high-voltage power connection row (1), wherein the high-voltage power connection row (1) is a bare metal power connection row;

a low-voltage wire harness (2), the low-voltage wire harness (2) including an insulating layer;

connect fixed knot to construct (3), for insulating material, connect fixed knot to construct (3) and include:

the high-voltage fixing part (31) comprises an upper cover (312), and one side of the upper cover (312) is provided with an accommodating space (313) for fixing the high-voltage electric connection row (1);

a low-voltage fixing portion (32) provided on the other side of the upper cover (312) and used for fixing the low-voltage wire harness (2);

the extending direction of the high-voltage electric connection row (1) is perpendicular to the extending direction of the low-voltage wire harness (2).

2. The high-low voltage electric connection fixing structure of the power battery according to claim 1, wherein the high-voltage fixing part (31) further comprises a lower shell (311), the lower shell (311) is connected with the upper cover (312) and forms the accommodating space (313) with openings at two ends, and the high-voltage electric connection row (1) penetrates through the accommodating space (313).

3. The high-low voltage electric connection fixing structure of the power battery is characterized in that two opposite sides of the upper cover (312) in the length direction are connected with the lower shell (311) through a buckling structure (4).

4. The high-low voltage electric connection fixing structure of the power battery according to claim 2, wherein the lower shell (311) and the upper cover (312) are integrally formed.

5. The high-low voltage electric connection fixing structure of the power battery is characterized in that one side of the upper cover (312) along the length direction is rotatably connected with the lower shell (311), and the other side of the upper cover is connected with the lower shell (311) through a buckling structure (4).

6. The high-low voltage electric connection fixing structure of the power battery according to claim 1, wherein the low-voltage fixing part (32) is made of a flexible material and comprises a first part (321) and a second part (322), one end of the first part (321) is fixedly arranged on the upper cover (312), one end of the second part (322) is fixedly arranged on the upper cover (312), and the other end of the first part (321) can be clamped with the other end of the second part (322) to fix the low-voltage wiring harness (2).

7. The high-low voltage electric connection fixing structure for the power battery according to claim 1, wherein the low voltage fixing portion (32) comprises two third portions (323) which are oppositely arranged, the third portions (323) comprise a first vertical portion (3231) and an arc portion (3232), the first vertical portion (3231) is vertically arranged on the upper cover (312), the two arc portions (3232) are oppositely and separately arranged, and a gap between the two arc portions (3232) is smaller than the diameter of the low voltage wiring harness (2).

8. The high-low voltage electric connection fixing structure of the power battery according to claim 1, wherein two opposite sides of the upper cover (312) along the length direction are provided with high-voltage electric connection row fixing pieces (314), and the high-voltage electric connection row fixing pieces (314) comprise:

a second vertical portion (3141), the second vertical portion (3141) being disposed perpendicular to the upper cover (312) and extending toward a side away from the low pressure fixing portion (32);

the bearing part (3142) is arranged at the end part of the second vertical part (3141) and used for bearing the high-voltage electric connection row (1), and the bearing part (3142) extends towards the inner side of the accommodating space (313).

9. The high-low voltage electric connection fixing structure of the power battery according to claim 8, wherein at least two high-voltage electric connection row fixing pieces (314) are arranged on either side of the upper cover (312) along the length direction.

10. A power battery pack, characterized in that the power battery pack comprises the power battery high-low voltage electric connection fixing structure according to any one of claims 1-9.