CN217881738U

CN217881738U - Supporting structure for battery module

Info

Publication number: CN217881738U
Application number: CN202221757029.0U
Authority: CN
Inventors: 龙薇丽
Original assignee: Tongling Weibo Electronic Technology Co ltd
Current assignee: Tongling Weibo Electronic Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-22
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a bearing structure for battery module belongs to battery module technical field. The supporting structure comprises a supporting base, wherein an installation chamber is formed in the supporting base, the plurality of lower battery modules are fixedly arranged in the installation chamber, and the upper surfaces of the lower battery modules are lower than the top surface of the installation chamber; the supporting base is detachably provided with a supporting plate at the top, the supporting plate is provided with a mounting groove penetrating through the upper surface and the lower surface of the supporting plate, the middle end of the mounting groove is fixedly provided with a liquid cooling plate, a liquid inlet and a liquid outlet of the liquid cooling plate are arranged on the side surface of the supporting plate, a supporting piece which is not contacted with the liquid cooling plate is respectively arranged above and below the liquid cooling plate, the supporting piece is provided with a plurality of heat dissipation ports penetrating through the upper surface and the lower surface of the supporting piece, the supporting piece is fixedly connected with the side surface of the mounting groove, and a plurality of upper battery modules are fixedly arranged on the upper surface of the supporting piece; the structure can avoid extruding the liquid cooling plate, induce the liquid leakage of the liquid cooling plate, and risk of fire and explosion of the battery module, and has the advantages of simple assembly, high efficiency and low cost.

Description

A bearing structure for battery module

Technical Field

The utility model relates to a battery module technical field, concretely relates to a bearing structure for battery module.

Background

With the continuous promotion of the theme of green environmental protection, the usage amount of electric automobiles is gradually increased year by year. In order to achieve the voltage and electric quantity required by the electric vehicle, a plurality of single batteries are generally connected in parallel to form a battery module, and a plurality of battery modules are connected in series to form a battery pack, wherein the battery pack is fixed in a battery box.

Need arrange more electric quantities in order to promote electric automobile's mileage promptly, the power battery of many money electric automobile all has arranges two-layer battery module on the existing market, is provided with the liquid cooling board between the upper and lower two-layer battery module. Through analysis, two main problems exist, and the first problem is as follows: the upper battery template is too heavy or the automobile jolts during running, so that the bottom plate of the upper battery template is possibly deformed, and the bottom plate is extruded to the liquid cooling plate due to too large deformation, so that the risks of liquid leakage of the liquid cooling plate, fire, explosion and the like of the battery module can be caused; the second problem is: the module support and the water cooling system have complex part assembly relation, low assembly efficiency and high cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bearing structure for battery module, solve that mention in the background art jolts because of the overweight of upper battery template or car in going, it is out of shape to make upper battery template bottom plate to be possible to extremely, and the bottom plate warp too big extrusion to the liquid cooling board to probably arouse the problem of risks such as liquid cooling board weeping, battery module fire, explosion.

The purpose of the utility model can be realized by the following technical proposal:

a supporting structure for battery modules comprises a plurality of upper battery modules, a plurality of lower battery modules and a supporting base, wherein an installation chamber is formed in the supporting base, the plurality of lower battery modules are fixedly arranged in the installation chamber, and the upper surfaces of the lower battery modules are lower than the top surface of the installation chamber; support base top detachable and install the backup pad, set up the mounting groove that runs through the backup pad upper and lower surface in the backup pad, the fixed liquid cooling board that is provided with of mounting groove middle-end, the inlet and the liquid outlet setting of liquid cooling board are in the backup pad side, the top and the below of liquid cooling board set up a support piece that does not contact with the liquid cooling board respectively, support piece is last to set up a plurality of thermovents that run through the support piece upper and lower surface, support piece and mounting groove side fixed connection, the fixed setting of battery module is at the support piece upper surface on a plurality of.

As a further aspect of the present invention: the support piece comprises a plurality of transverse support rods arranged at intervals and a plurality of longitudinal support rods arranged at intervals, and the longitudinal support rods and the transverse support rods are mutually crossed to form a plurality of heat dissipation ports above and below the liquid cooling plate.

As a further aspect of the present invention: the battery module is characterized in that a composite heat-conducting silica gel pad is arranged in the heat dissipation port respectively, one end of the composite heat-conducting silica gel pad is in surface contact with the liquid cooling plate, one end, away from the liquid cooling plate, of the composite heat-conducting silica gel pad above the liquid cooling plate is connected with the bottom of the upper battery module, and one end, away from the liquid cooling plate, of the composite heat-conducting silica gel pad below the liquid cooling plate is connected with the top of the lower battery module.

As a further aspect of the present invention: two fixing blocks are respectively arranged on two opposite side surfaces of the supporting plate, and two first mounting screw holes are formed in the fixing blocks.

As a further aspect of the present invention: the top of the two opposite side walls of the supporting base is provided with a groove matched with the fixing block.

The utility model has the advantages that:

(1) The liquid cooling plate is arranged between the two supporting pieces, and the supporting pieces can support a plurality of upper battery modules; through set up a plurality of thermovents at support piece, fill compound heat conduction silica gel pad in the thermovent, compound heat conduction silica gel pad will go up the battery module and give the liquid cold drawing with the heat transfer that battery module produced down, compound heat conduction silica gel pad can also play the cushioning effect simultaneously, the gravity of going up battery module and the vibration direct action that the car jolted in-process produced are on the liquid cold drawing, stop the too big extrusion liquid cold drawing of bottom plate deformation, trigger liquid cold drawing weeping, the battery module is on fire, the risk of explosion.

(2) During the installation, only need through the first screw of installation with the backup pad install support base top can, the assembly is simple, efficient and with low costs.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic front sectional view of the overall structure of the present invention;

fig. 2 is a perspective view of the support plate structure of the present invention;

FIG. 3 is a perspective view of the combined structure of the composite heat-conducting silicone pad and the supporting plate of the present invention;

fig. 4 is a side sectional schematic view of the structure of fig. 3.

In the figure: 1. a support base; 2. an upper battery module; 3. a lower battery module; 4. a support plate; 5. a liquid cooling plate; 6. a support member; 7. a heat dissipation port; 8. compounding a heat-conducting silica gel pad; 9. a fixed block; 101. an installation chamber; 401. mounting grooves; 501. a liquid inlet; 502. a liquid outlet; 601. a transverse support rod; 602. a longitudinal support bar; 901. a first screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

A support structure for a battery module, as shown in fig. 1 to 4, comprises a support base 1 and a support plate 4, the support plate 4 being detachably mounted on the top of the support base 1. Two fixing blocks 9 are respectively arranged on two opposite side faces of the supporting plate 4, two first screw holes 901 are formed in the fixing blocks 9, grooves matched with the fixing blocks 9 are formed in the tops of two opposite side walls of the supporting base 1, second screw holes matched with the first screw holes 901 are formed in the bottom of the lower portion of each groove, the fixing blocks 9 are clamped into the grooves during installation, the first screw holes 901 are connected with the second screw holes through bolts, and the supporting plate 4 is fixed.

An installation chamber 101 is formed in the supporting base 1, the plurality of lower battery modules 3 are fixedly arranged in the installation chamber 101, and the upper surfaces of the lower battery modules 3 are lower than the top surface of the installation chamber 101, so that the upper surfaces of the lower battery modules 3 are not in direct contact with the lower surface of the supporting plate 4, and the distance between the upper surfaces of the lower battery modules 3 and the lower surface of the supporting plate 4 is 0.5-1.5CM; the mounting plate 4 is provided with a mounting groove 401 penetrating through the upper surface and the lower surface of the mounting plate 4, the area of the mounting groove 401 is equivalent to the area of a base plate after a plurality of upper battery modules 2 are connected, the middle end of the mounting groove 401 is fixedly provided with a liquid cooling plate 5, a liquid inlet 501 and a liquid outlet 502 of the liquid cooling plate 5 are arranged on the side surface of the mounting plate 4, the liquid inlet 501 and the liquid outlet 502 are both connected with an external condensing device, when the mounting groove works, cooling liquid enters the liquid cooling plate 5 from the liquid inlet 501 and then flows out from the liquid outlet 502 after absorbing heat, a support member 6 which is not in contact with the liquid cooling plate 5 is respectively arranged above and below the liquid cooling plate 5, the support member 6 is made of metal with strong pressure resistance, the support member 6 is fixedly connected with the side surface of the mounting groove 401, the plurality of upper battery modules 2 are fixedly arranged on the upper surface of the support member 6, the upper support member 6 and the lower support member 6 protect the liquid cooling plate 5 in the mounting groove 401, so as to avoid the direct contact of the base plate of the upper battery module 2 with the liquid cooling plate 5, the lower battery module 3, and the upper surface and the lower battery module 5 are not in direct contact with the upper battery module 2 and the lower battery module 3, wherein the space is 0.5-1.5CM; prevent to go up battery module 2 bottom plate deformation too big or the crooked extrusion of support piece 6 to liquid cooling plate 5, the risk of initiating 5 weepings of liquid cooling plate, going up battery module 2 and battery module 3 down and catching fire, explosion, set up a plurality of thermovents 7 that run through support piece 6 upper and lower surface on support piece 6.

Preferably, as shown in fig. 2, the supporting member 6 includes a plurality of transverse supporting rods 601 arranged at intervals and a plurality of longitudinal supporting rods 602 arranged at intervals, the longitudinal supporting rods 602 and the transverse supporting rods 601 are crossed with each other and form a plurality of heat dissipating ports 7 above and below the liquid cooling plate 5, and the number of the longitudinal supporting rods 602 and the transverse supporting rods 601 is determined according to the number of the upper battery modules 2, so as to ensure that the longitudinal supporting rods 602 and the transverse supporting rods 601 can stably support a plurality of upper battery modules 2.

Preferably, as shown in fig. 3, in order to better transmit the heat generated by the upper battery module 2 and the lower battery module 3 to the liquid cooling plate 5, a composite heat-conducting silica gel pad 8 is respectively arranged in the heat dissipation port 7, one end of the composite heat-conducting silica gel pad 8 is in surface contact with the liquid cooling plate 5, one end of the composite heat-conducting silica gel pad 8 above the liquid cooling plate 5, which is far away from the liquid cooling plate 5, is connected to the bottom of the upper battery module 2, and one end of the composite heat-conducting silica gel pad 8 below the liquid cooling plate 5, which is far away from the liquid cooling plate 5, is connected to the top of the lower battery module 3.

The utility model discloses a theory of operation:

firstly, a plurality of lower battery modules 3 are fixedly installed in an installation chamber 101, then a support plate 4 is installed at the top of a support base 1 through a first screw hole 901, an installation groove 401 is formed in the support plate 4, a support member 6 is respectively arranged on the upper surface and the lower surface of the installation groove 401, a plurality of heat dissipation ports 7 are formed in the support member 6, a liquid cooling plate 5 is arranged between the two support members 6, finally a plurality of upper battery modules 2 are fixedly installed on the support members 6, the support members 6 can bear the weight of the plurality of upper battery modules 2, the upper support members 6 and the lower support members 6 protect the liquid cooling plate 5 in the installation groove 401, the direct contact between the bottom plate of the upper battery module 2 and the liquid cooling plate 5 is avoided, the excessive deformation of the bottom plate of the upper battery module 2 and the extrusion of the liquid cooling plate 5 are avoided, and the risks of fire and explosion of the upper battery module 2 and the lower battery modules 3 are avoided;

through filling composite heat conduction silica gel pad 8 in thermovent 7, composite heat conduction silica gel pad 8 will go up battery module 2 and the heat transfer that battery module 3 produced down and give liquid cold drawing 5 and dispel the heat, and composite heat conduction silica gel pad 8 can also play the cushioning effect simultaneously.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", 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 and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" or "a plurality" means two or more.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims

1. A supporting structure for battery modules comprises a plurality of upper battery modules (2), a plurality of lower battery modules (3) and a supporting base (1), and is characterized in that an installation chamber (101) is formed in the supporting base (1), the plurality of lower battery modules (3) are fixedly arranged in the installation chamber (101), and the upper surfaces of the lower battery modules (3) are lower than the top surface of the installation chamber (101); support base (1) top detachable and install backup pad (4), set up mounting groove (401) that runs through backup pad (4) upper and lower surface on backup pad (4), the fixed liquid cooling board (5) that is provided with of mounting groove (401) middle-end, inlet (501) and liquid outlet (502) of liquid cooling board (5) set up in backup pad (4) side, the top and the below of liquid cooling board (5) set up respectively one support piece (6) that do not contact with liquid cooling board (5), set up a plurality of thermovents (7) that run through support piece (6) upper and lower surface on support piece (6), support piece (6) and mounting groove (401) side fixed connection, a plurality of battery module (2) of going up are fixed to be set up in support piece (6) upper surface.

2. The support structure for the battery module as claimed in claim 1, wherein the support member (6) comprises a plurality of spaced lateral support bars (601) and a plurality of spaced longitudinal support bars (602), the longitudinal support bars (602) and the lateral support bars (601) are crossed with each other and form a plurality of heat dissipation ports (7) above and below the liquid cooling plate (5).

3. The supporting structure for the battery module according to claim 1 or 2, wherein a composite heat-conducting silica gel pad (8) is arranged in each heat dissipating port (7), one end of the composite heat-conducting silica gel pad (8) is in surface contact with the liquid cooling plate (5), one end of the composite heat-conducting silica gel pad (8) above the liquid cooling plate (5), which is far away from the liquid cooling plate (5), is connected with the bottom of the upper battery module (2), and one end of the composite heat-conducting silica gel pad (8) below the liquid cooling plate (5), which is far away from the liquid cooling plate (5), is connected with the top of the lower battery module (3).

4. The support structure for the battery module as claimed in claim 1, wherein two fixing blocks (9) are respectively disposed on two opposite side surfaces of the support plate (4), and two first screw holes (901) are formed in the fixing blocks (9).

5. The support structure for the battery module as claimed in claim 4, wherein the support base (1) is provided with grooves at the tops of two opposite sidewalls to match with the fixing blocks (9).