CN212277326U

CN212277326U - Installation frame and module of module

Info

Publication number: CN212277326U
Application number: CN202021260605.1U
Authority: CN
Inventors: 赵祥熙; 孙海健
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-01
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a power battery technical field, in particular to installation frame and module of module. The installation frame includes main part and a plurality of insulating refractory, the main part includes along a plurality of location portions of the width direction interval distribution of main part, location portion is provided with along a plurality of constant head tanks of the length direction range of main part for be used for injecing the busbar of module, insulating refractory sets up two adjacently the fin department between the constant head tank, in order to separate two adjacently the busbar. The installation frame of module is through setting up insulating refractory part to this insulating refractory part can bear the module appears the high temperature that corresponds when phenomenons such as fire under the thermal runaway state, like this, no matter be during the normal operating of battery, still appear under the thermal runaway state in the battery, insulating refractory part homoenergetic is separated two adjacent busbars, has improved the security performance of battery.

Description

Installation frame and module of module

Technical Field

The utility model relates to a power battery technical field, in particular to installation frame and module of module.

Background

At present, electric automobile's battery adopts single module design usually, also adopts big module, and is concrete, concatenates a plurality of electric core cluster (parallel) through the busbar to form big module to the power consumption demand of whole car has been satisfied.

In the use process of the electric automobile, the operation fault, even the fire and explosion, caused by thermal runaway inside the battery are very dangerous. Specifically, when the inside electric core of battery breaks down, the light expansion of trouble electric core is to the deformation, then can the explosion on fire, cause the temperature in this trouble electric core near sharply to rise, lead to the plastics support in the trouble electric core near to melt disappearance or burn out, in case lose the fixed of plastics support with separate the fender effect, adjacent busbar very easily moves together under the inflation effect of trouble electric core and the blowout effect of the interior steam of trouble electric core, lead to taking place the short circuit between the adjacent electric core, thereby the explosion on fire, cause the inside thermal runaway of battery to find out, threaten passenger's safety even.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an installation frame and module of module to delay among the prior art whole battery because of the plastic support takes place to melt when electric core trouble and disappears and the thermal runaway aggravation problem that leads to.

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

the utility model discloses an aspect provides an installation frame of module, the installation frame includes main part and a plurality of insulating fire-resistant component, the main part includes the edge a plurality of location portions of the width direction interval distribution of main part, location portion is provided with the edge a plurality of constant head tanks of the length direction range of main part are used for injecing the busbar of module, insulating fire-resistant component sets up adjacent two bead department between the constant head tank is with separating adjacent two the busbar.

Optionally, the rib has a groove, and the insulating refractory is inserted in the groove and the bottom wall is not higher than the supporting surface of the positioning groove.

Optionally, the insulating refractory is a plate-shaped structure perpendicular to the supporting surface of the positioning groove.

Optionally, the insulating fireproof piece is one of a mica plate and an epoxy plate.

Optionally, the body comprises a plurality of first brackets and a plurality of second brackets alternately arranged in a length direction of the body, the first bracket includes a first body frame and a first positioning plate, a top wall of the first body frame includes a first mounting portion where the first positioning plate is disposed and a first supporting portion that avoids the first positioning plate, the second bracket includes a second body frame and a second positioning plate, a top wall of the second body frame includes a second mounting portion where the second positioning plate is disposed and a second supporting portion that avoids the second positioning plate, wherein the first supporting part is positioned between two adjacent second positioning plates to form the positioning slot together, and the second supporting part is positioned between two adjacent first positioning plates to jointly form the positioning groove, and the convex ribs are the first positioning plate and the second positioning plate.

Optionally, two opposite plate surfaces in the thickness direction of the first positioning plate are respectively provided with a protrusion protruding toward two adjacent positioning grooves, so as to define the busbar.

Optionally, two opposite plate surfaces in the thickness direction of the second positioning plate are respectively provided with a limiting portion protruding towards two adjacent positioning grooves, so as to limit the busbar.

Optionally, the module has a cell, and the first and second body frames are spaced apart from each other and disposed opposite to each other to form a chamber for accommodating the cell together.

Optionally, the bottom of the first body frame includes a first baffle, and the first baffle is disposed along the length direction of the body and extends toward the second body frame to support the battery cell;

and/or the bottom of the second body frame comprises a second baffle plate, and the second baffle plate is arranged along the length direction of the body and extends towards the first body frame so as to be used for supporting the battery cell.

The utility model discloses the second aspect still provides a module, the module includes the installation frame of module, the module is including installing respectively in a plurality of busbars in the constant head tank, adjacent two the busbar passes through insulating refractory part separates.

Compared with the prior art, installation frame and module of module have following advantage:

the installation frame of module is through setting up insulating refractory part, and this insulating refractory part can bear the module appears the high temperature that corresponds when phenomenons such as fire under the thermal runaway state, like this, no matter be during the normal operating of battery, still appear under the thermal runaway state in the battery, insulating refractory part homoenergetic is separated two adjacent busbars, with restrain among the prior art whole battery because of plastic support takes place to melt when electric core trouble and disappear and the thermal runaway aggravation problem that leads to, thermal runaway's speed of stretching has been delayed, more escape time has been striven for the passenger.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

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 mounting frame of a module according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the mounting frame shown in FIG. 1 at A;

FIG. 3 is a schematic view of the mounting frame and the bus bar shown in FIG. 1, wherein the insulating refractory member is designed to be separated from the rib of the mounting frame, and the insulating refractory member is inserted into the groove of the rib;

fig. 4 is an assembly view of the mounting frame and the bus bar shown in fig. 3, wherein the insulating fireproof member is integrally designed with the rib of the mounting frame, and the insulating fireproof member is covered inside the rib.

Description of reference numerals:

1. a bus bar; 2. an insulating refractory; 3. a first body frame; 4. a first positioning plate; 5. a protrusion; 6. a first support portion; 7. a first baffle plate; 8. a first mounting portion; 9. a second body frame; 10. a second positioning plate; 11. a limiting part; 12. a second support portion; 13. a second mounting portion; 14. and (6) positioning a groove.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

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

The utility model discloses a first aspect provides an installation frame of module, as shown in fig. 1-4, the installation frame includes main part and a plurality of insulating refractory 2, the main part includes the edge a plurality of location portions of the width direction interval distribution of main part, location portion is provided with the edge a plurality of constant head tanks 14 that the length direction of main part was arranged are used for injecing the busbar 1 of module, insulating refractory 2 sets up adjacent two bead department between the constant head tank 14 is in order to separate adjacent two busbar 1. The main body can be made of various reasonable materials, and a plastic bracket can be adopted to reduce the overall weight of the mounting frame; the insulating fireproof part 2 can be made of various materials, and can not be melted or burnt under the high-temperature condition caused by a fault battery core. It is worth mentioning that the module generally includes a plurality of cell units, each cell unit includes a plurality of cells, in each cell unit, the plurality of cells are sequentially arranged along a width direction of the cell (i.e., an up-down direction shown in fig. 4), and two adjacent electrode posts of two adjacent cells are electrically connected through a bus bar; in this way, the width direction of the main body mentioned in this application may be the arrangement direction of a plurality of battery cell units in the module, that is, the length direction of a single battery cell (i.e., the left and right direction of the module shown in fig. 4, or the left and right direction of the mounting frame shown in fig. 1), and the length direction of the main body may be the arrangement direction of a plurality of battery cells in a single battery cell unit, that is, the width direction of a single battery cell (i.e., the up and down direction of the module shown in fig. 4, or the up and down direction of the mounting frame shown in fig. 1).

Through the technical scheme, the utility model provides an installation frame and module of module, the installation frame of module is through setting up insulating refractory part 2, and this insulating refractory part 2 can bear the module appears the high temperature condition that corresponds when phenomenons such as fire under the thermal runaway state, like this, no matter be during the normal operating of battery, still under the thermal runaway state appears in the battery, insulating refractory part homoenergetic is with adjacent two busbar 1 separation, make adjacent two busbar can be insulated each other all the time, in order to restrain among the prior art whole battery because of the plastic support takes place to melt when electric core trouble and disappear and the thermal runaway aggravation problem that leads to, thermal runaway's speed of stretching has been delayed, for the passenger has strived more time of fleing for, the security performance of battery has been improved.

Further, the rib has a groove in which the insulating refractory 2 is inserted and the bottom wall is not higher than the supporting surface of the positioning groove 14. The support surface of the positioning groove 14 refers to the groove bottom surface of the positioning groove 14 for supporting the busbars, and when the bottom wall of the insulating fireproof piece 2 is not higher than the support surface of the positioning groove 14, the bottom wall of the insulating fireproof piece 2 is located below the bottom wall of the busbars, that is, in the thickness direction of the busbars, two adjacent busbars can be completely separated by the insulating fireproof piece 2, so that the contact short circuit phenomenon of the two adjacent busbars in the normal operation state and the thermal runaway state of the battery is prevented, and the insulation effect of the whole battery pack is optimized. In addition, the main body rib and the insulating fireproof part 2 can be assembled in various reasonable forms, for example, as shown in fig. 4, when the main body is a plastic bracket, an integrated structural member of the main body and the insulating fireproof part 2 can be manufactured in an injection molding mode; of course, as shown in fig. 1 to 3, the main body and the insulating refractory 2 may be manufactured separately, and after the main body and the insulating refractory 2 are manufactured separately, the insulating refractory 2 is mounted on the rib of the main body.

As shown in fig. 1-3, the insulating fireproof member 2 is a plate-shaped structure perpendicular to the supporting surface of the positioning groove 14, so that the structure is simpler, the manufacturing and the processing are convenient, the material of the insulating fireproof member 2 is saved on the premise of ensuring the insulating effect of the mounting frame, the cost is reduced, and the lightweight design of the battery is facilitated. It is worth mentioning that in order to further optimize the insulating effect of the mounting frame, the width of the insulating refractory 2 is greater than the width of the busbar 1.

Further, in order to achieve both the insulation effect and the lightweight design, the insulating fireproof member 2 is one of a mica plate and an epoxy plate (i.e., an epoxy resin plate), and the manufacturing cost is also reduced. In view of the physical properties of flame retardance and high temperature resistance of the mica plate and the epoxy plate, even if the battery is subjected to thermal runaway high temperature, the mica plate and the epoxy plate cannot be melted and disappear, the thermal runaway in the battery is restrained to a certain extent, and meanwhile, the direct contact between two adjacent busbars can be prevented under the thermal runaway state of the battery, so that the contact short circuit between the busbars is avoided, the thermal runaway condition of the battery is obviously improved, and the safety performance of the battery is optimized.

As shown in fig. 1, the main body includes a plurality of first brackets and a plurality of second brackets alternately arranged in a length direction of the main body, the first brackets include a first main body frame 3 and a first positioning plate 4, a top wall of the first main body frame 3 includes a first mounting portion where the first positioning plate 4 is disposed and a first supporting portion 6 where the first positioning plate 4 is avoided, the second brackets include a second main body frame 9 and a second positioning plate 10, a top wall of the second main body frame 9 includes a second mounting portion where the second positioning plate 10 is disposed and a second supporting portion 12 where the second positioning plate 10 is avoided, wherein the first supporting portion 6 is located between adjacent two of the second positioning plates 10 to collectively form the positioning groove 14, and the second supporting portion 12 is located between adjacent two of the first positioning plates 4 to collectively form the positioning groove 14, the bead does first locating plate 4 with second locating plate 10, the structure is more simple, the preparation and the processing of being convenient for, and first locating plate 4 and second locating plate 10 not only can fix busbar 1 moreover, have still increased electric clearance and creepage distance between two adjacent electric cores of module, have guaranteed the insulating properties of installation frame. It is worth mentioning that, in the module, as shown in fig. 3 and 4, the electrode posts of two adjacent cells may be electrically connected through a single bus bar, so as to realize series connection or parallel connection between a plurality of cells. In addition, the electrode columns of a plurality of adjacent cells may also be electrically connected at the same time by a single busbar, and the mounting frame further includes a plurality of third supports, and the top wall of the third support includes a third supporting portion and a fourth supporting portion, wherein the third supporting portion is disposed corresponding to the first supporting portion 6 of the first main body frame 3, and the fourth supporting portion is disposed corresponding to the second supporting portion 12 of the second main body frame 9. Taking 4 adjacent electric cores connected in parallel through a single busbar as an example below, specifically as follows, a third support is arranged between every two adjacent first supports and second supports, an electric core is arranged between the first support and the third support, and an electric core is arranged between the second support and the third support, so that 4 electric cores can be arranged between two adjacent first supports, and 4 electric cores can be arranged between two adjacent second supports, at this moment: the positioning slot 14 may be formed by the first support part 6, two third support parts located at both sides of the first support part 6, and two second positioning plates 10 located at both sides of the two third support parts, wherein the first support part 6 and the two third support parts together form a supporting surface of the same positioning slot; moreover, the positioning slot 14 may also be formed by the second support part 12, two fourth support parts on both sides of the second support part 12 and two first positioning plates 4 on both sides of the two fourth support parts, wherein the second support part 12 and the two fourth support parts together form a support surface of the same positioning slot. Of course, 8 adjacent electric cores are connected in parallel through a single busbar, and then, three third supports are arranged between every two adjacent first supports and every two adjacent second supports, and specifically, the design mode that 4 adjacent electric cores are connected in parallel through a single busbar is referred to, and the description is omitted here.

Further, two opposite plate surfaces in the thickness direction of the first positioning plate 4 are respectively provided with protrusions 5 protruding toward two adjacent positioning grooves 14 for defining the bus bar 1. As shown in fig. 1 and 2, the bus bar 1 has a slot adapted to the protrusion 5, so that the first positioning plate 4 can position the bus bar 1 in the plate surface direction of the bus bar 1, ensuring the stability of the internal structure of the battery.

Further, two opposite plate surfaces in the thickness direction of the second positioning plate 10 are respectively provided with a limiting portion 11 protruding toward two adjacent positioning grooves 14, so as to limit the busbar 1. As shown in fig. 1 and 2, the bus bar 1 has a position-limiting groove adapted to the position-limiting portion 11, so that the second positioning plate 10 can position the bus bar 1 in the plate surface direction of the bus bar 1, ensuring the stability of the internal structure of the battery.

Further, the module has electric core, first main part frame 3 and second main part frame 9 separate each other and set up relatively to form jointly and be used for holding the cavity of electric core, like this, can fix a position under the prerequisite of busbar 1 is fixed a position to the installation frame, and the overall structure that is favorable to the module is more compact firm, and the design is more reasonable. Of course, in order to further stabilize the overall structure of the module, the mounting frame may be further assembled to the lower case of the battery, for example, a fastening member may be used for assembly, and specifically, the first body frame 3 has a first mounting portion at the bottom thereof, the second body frame 9 has a second mounting portion at the bottom thereof, and the first mounting portion and the second mounting portion are combined together to form a mounting structure extending in the length direction of the body, which is provided with a mounting hole allowing the fastening member to pass therethrough. Of course, the main body of the mounting frame may also be provided in other reasonable forms, for example, the main body may also be provided as an integral structure, and the main body may be used only to fix the bus bar 1 and the printed circuit board electrically connected to the bus bar 1.

As shown in fig. 1, the bottom of the first body frame 3 includes a first baffle 7, and the first baffle 7 is disposed along the length direction of the body and extends toward the second body frame 9 for supporting the battery cell; and/or the bottom of the second body frame 9 includes a second baffle, and the second baffle is disposed along the length direction of the body and extends toward the first body frame 3 to support the battery cell. Through above-mentioned structure, the installation frame can bear electric core through first baffle 7 and second baffle, has prevented that electric core and casing down from taking place direct contact, has avoided electric core to receive the damage because of casing emergence deformation down, is favorable to protecting the intact harmless of electric core.

The second aspect of the present invention further provides a module, as shown in fig. 1-4, the module comprises the mounting frame of the module, the module comprises a plurality of busbars 1 installed in the positioning groove 14, two adjacent busbars 1 pass through the insulating fireproof member 2.

Through the technical scheme, the utility model provides a module, the module is through setting up insulating refractory part 2 on the installation frame, and this insulating refractory part 2 can bear the module high temperature condition that corresponds when phenomenons such as appearing on fire under the thermal runaway state, like this, no matter be during the normal operating of battery, still appear under the thermal runaway state in the battery, insulating refractory part homoenergetic is with adjacent two busbar 1 separation, make adjacent two busbar can be insulated each other all the time, take place to melt the aggravation problem that leads to because of plastic support when electric core trouble in order to restrain among the prior art whole battery, thermal runaway's speed of stretching has been delayed, for the passenger has strived more time of fleing for, the security performance of battery has been improved.

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. Mounting frame for modules, characterised in that it comprises a main body and a plurality of insulating refractory elements (2), said main body comprising a plurality of positioning portions spaced apart along the width of said main body, said positioning portions being provided with a plurality of positioning slots (14) arranged along the length of said main body for defining busbars (1) of said module, said insulating refractory elements (2) being arranged at the level of a ledge between two adjacent positioning slots (14) for separating two adjacent busbars (1).

2. Mounting frame for modules according to claim 1, characterised in that the ridge has a groove in which the insulating refractory (2) is inserted and the bottom wall is not higher than the support surface of the positioning slot (14).

3. Mounting frame for modules according to claim 2, characterised in that the insulating refractory (2) is of a plate-like structure arranged perpendicularly to the supporting surface of the positioning slot (14).

4. Mounting frame for modules according to claim 3, wherein the insulating refractory (2) is one of mica board and epoxy board.

5. The mounting frame of a module according to any one of claims 1 to 4, wherein the main body comprises a plurality of first brackets and a plurality of second brackets alternately arranged in a length direction of the main body, the first brackets comprise a first main body frame (3) and a first positioning plate (4), a top wall of the first main body frame (3) comprises a first mounting portion where the first positioning plate (4) is provided and a first supporting portion (6) avoiding the first positioning plate (4), the second brackets comprise a second main body frame (9) and a second positioning plate (10), a top wall of the second main body frame (9) comprises a second mounting portion where the second positioning plate (10) is provided and a second supporting portion (12) avoiding the second positioning plate (10), wherein,

the first supporting portion (6) is located between two adjacent second positioning plates (10) to jointly form the positioning slot (14), and the second supporting portion (12) is located between two adjacent first positioning plates (4) to jointly form the positioning slot (14), the ribs being the first positioning plate (4) and the second positioning plate (10).

6. Mounting frame for modules according to claim 5, characterised in that opposite plate faces in the thickness direction of the first positioning plate (4) are provided with respective projections (5) projecting towards two adjacent positioning slots (14) for delimiting the busbars (1).

7. Mounting frame for modules according to claim 5, characterised in that opposite plate faces in the thickness direction of the second positioning plate (10) are provided with a stop portion (11) projecting towards two adjacent positioning slots (14) respectively for limiting the busbars (1).

8. Mounting frame of a module according to claim 5, wherein the module has a cell, the first (3) and second (9) body frames being spaced apart and arranged opposite each other to jointly form a chamber for accommodating the cell.

9. Mounting frame of a module according to claim 8, wherein the bottom of the first body frame (3) comprises a first baffle (7), the first baffle (7) being arranged along the length of the body and extending towards the second body frame (9) for supporting the cells;

and/or the bottom of the second body frame (9) comprises a second baffle plate which is arranged along the length direction of the body and extends towards the first body frame (3) for supporting the battery cell.

10. A module, characterized in that it comprises a mounting frame of a module according to any one of claims 1-9, said module comprising a plurality of busbars (1) mounted in a plurality of said positioning slots (14), respectively, two adjacent busbars (1) being separated by said insulating refractory (2).