CN211858760U

CN211858760U - Heat insulation structure of cylindrical battery module

Info

Publication number: CN211858760U
Application number: CN202020900858.4U
Authority: CN
Inventors: 陈伟钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-11-03
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a heat insulation structure of a cylindrical battery module, in particular to the technical field of air blowers, which comprises a box body, a positioning mechanism and a filling mechanism, wherein the positioning mechanism comprises a positioning plate, a positioning groove and an elastic ring, the positioning plate is positioned in the box body and is in sliding connection with the box body, the surface of the positioning plate is provided with a plurality of positioning grooves which are uniformly distributed, and the elastic ring is bonded in the positioning grooves; filling mechanism is including movable block, conveying mechanism and jar body, the spout that can with movable block sliding connection is seted up to the box both sides, the opening has been seted up to the movable block lower surface, movable block upper surface intercommunication has conveying mechanism, the conveying mechanism other end and jar body intercommunication. The utility model discloses a be equipped with the casting glue, can evenly cover the casting glue at battery module top during movable block reciprocating motion, utilize the leakproofness and the thermal-insulated characteristic of casting glue, separation top BMS management module's heat is to the battery conduction.

Description

Heat insulation structure of cylindrical battery module

Technical Field

The utility model relates to an air-blower technical field, more specifically say, the utility model relates to a thermal-insulated structure of cylinder battery module.

Background

Cylindrical batteries are largely used as power batteries of new energy automobiles, for example, 18650 and 21700 cylindrical batteries of the Panasonic automobile are adopted all the time, and the cylindrical batteries such as 18650 and 21700 have the characteristic of high consistency and are suitable for the field of power batteries with very high consistency requirements.

Because BMS management module is connected at cylindrical battery top, BMS device during operation temperature is up to 120 ℃, and the heat can be conducted to cylindrical battery through the wire, thereby causes the battery temperature sharply to increase and arouses thermal runaway, and the potential safety hazard is big.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a thermal-insulated structure of cylinder battery module, the utility model aims to solve the technical problem that: how to improve the heat insulation performance of the battery module

In order to achieve the above object, the utility model provides a following technical scheme: a heat insulation structure of a cylindrical battery module comprises a box body, a positioning mechanism and a filling mechanism, wherein the positioning mechanism comprises a positioning plate, positioning grooves and elastic rings, the positioning plate is positioned in the box body and is in sliding connection with the box body, the surfaces of the positioning plates are provided with a plurality of uniformly distributed positioning grooves, and the elastic rings are bonded in the positioning grooves;

filling mechanism is including movable block, conveying mechanism and jar body, the spout that can with movable block sliding connection is seted up to the box both sides, the opening has been seted up to the movable block lower surface, movable block upper surface intercommunication has conveying mechanism, the conveying mechanism other end and jar body intercommunication, the internal portion of jar is provided with the casting glue, the inside first screw rod that is provided with of spout, just first screw rod and movable block threaded connection, the fixed gear motor who is connected with first screw rod transmission that is provided with in the box outside.

In a preferred embodiment, the conveying mechanism comprises a first conveying pipe, a hose and a second conveying pipe, the first conveying pipe is communicated with the tank body, a conveying pump is arranged on the first conveying pipe, the other end of the first conveying pipe is communicated with the hose, the other end of the hose is communicated with the second conveying pipe, and the second conveying pipe is communicated with the movable block.

In a preferred embodiment, the first and second ducts are made of metal or plastic material, and the hose and the elastic ring are made of elastic rubber material.

In a preferred embodiment, a stirring rod is arranged inside the tank body, a driving motor in transmission connection with the stirring rod is arranged at the top of the tank body, and a heating plate is further arranged inside the tank body.

In a preferred embodiment, a slot slidably connected with the positioning plate is arranged inside the box body, a second screw is arranged inside the slot, one end of the second screw penetrates through the positioning plate and is in threaded connection with the positioning plate, and the other end of the second screw is in transmission connection with a second speed reduction motor.

In a preferred embodiment, a workbench is fixedly arranged at the bottom of the box body.

In a preferred embodiment, the outside of the tank body is communicated with a feeding pipe.

In a preferred embodiment, the distance between adjacent positioning grooves is 1.5 mm.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with the casting glue, can evenly cover the casting glue at battery module top when movable block reciprocating motion, utilize the leakproofness and the thermal-insulated characteristic of casting glue, the heat of separation top BMS management module conducts to the battery, guarantees that the operating temperature range of battery maintains in reasonable temperature interval, and the elastic ring in the constant head tank can extrude the battery outer wall, realizes sealed effect, avoids the casting glue to leak downwards, causes the waste, compares with prior art, the utility model discloses to the problem that the battery temperature increases and arouses thermal runaway of the heat conduction of the heat of cylindrical battery top BMS management module to the battery conduction, adopt the top of low density, low heat conduction's casting glue watering cylindrical battery, the heat conduction of separation BMS module is to the battery module;

2. the utility model discloses a be equipped with the puddler, the puddler can stir the casting glue in real time under driving motor's drive, guarantees the casting glue misce bene, and the heating plate can provide the heat preservation effect for jar internal portion, avoids the casting glue to solidify, and second gear motor can drive the locating plate along the perpendicular lapse of fluting through the second screw rod to reduce the area of contact of locating plate and casting glue, be convenient for follow-up battery module with processing and take out.

Drawings

Fig. 1 is a perspective view of the overall structure of the present invention.

Fig. 2 is a front view of the overall structure of the present invention.

Fig. 3 is a top view of the overall structure of the present invention.

Fig. 4 is a bottom perspective view of the overall structure of the present invention.

Fig. 5 is a sectional view of the structure of the box body of the present invention.

The reference signs are: the device comprises a box body 1, a positioning plate 2, a positioning groove 3, an elastic ring 4, a movable block 5, a tank body 6, a sliding groove 7, an opening 8, pouring sealant 9, a first screw rod 10, a first speed reducing motor 11, a first conveying pipe 12, a hose 13, a second conveying pipe 14, a stirring rod 15, a heating sheet 16, a slot 17, a second screw rod 18 and a second speed reducing motor 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a heat insulation structure of cylindrical battery module, including box 1, positioning mechanism and filling mechanism, positioning mechanism includes locating plate 2, constant head tank 3 and elastic ring 4, locating plate 2 is located box 1 inside and with box 1 sliding connection, a plurality of evenly distributed constant head tanks 3 are seted up on the surface of locating plate 2, a plurality of elastic ring 4 is all bonded inside constant head tanks 3;

filling mechanism is including movable block 5, conveying mechanism and

jar body

6, 1 both sides of box are seted up can with 5 sliding connection's of movable block spout 7, opening 8 has been seted up to 5 lower surfaces of movable block, 5 upper surface intercommunications of movable block have conveying mechanism, the conveying mechanism other end and jar 6 intercommunication, the inside casting glue 9 that is provided with of jar body 6, spout 7 inside is provided with first screw rod 10, just

first screw rod

10 and 5 threaded connection of movable block, the fixed first gear motor 11 of being connected with the transmission of first screw rod 10 that is provided with in the 1 outside of box.

Conveying mechanism is including first conveyer pipe 12, hose 13 and second conveyer pipe 14, first conveyer pipe 12 and jar 6 intercommunication, be provided with the delivery pump on the first conveyer pipe 12, first conveyer pipe 12 other end intercommunication has hose 13, hose 13 other end intercommunication has second conveyer pipe 14, second conveyer pipe 14 and movable block 5 intercommunication, first conveyer pipe 12 and second conveyer pipe 14 are made by metal or plastic material, hose 13 and elastic ring 4 are made by elastic rubber material, the fixed workstation that is provided with in box 1 bottom, the 6 outside intercommunications of jar body have the inlet pipe, and are adjacent interval is 1.5mm between the constant head tank 3.

As shown in fig. 1 to 5, the embodiment specifically is: when the battery pack is used, the batteries can be placed into the positioning grooves 3, the positioning grooves 3 play a role in uniformly distributing and arranging the batteries, the distance between the positioning grooves 3 is 1.5mm, enough heat dissipation distance is reserved for the batteries, the conveying pump can pump the pouring sealant 9 with the viscosity of 5000mPa, the density of 0.56g/cm3 and the heat conductivity coefficient of 0.10W/(mK), the pouring sealant 9 can enter the movable block 5 through the first conveying pipe 12, the hose 13 and the second conveying pipe 14 and can flow out downwards from the opening 8 at the bottom of the movable block 5, the first speed reducing motor 11 can drive the movable block 5 to slide back and forth along the chute 7 through the first screw 10, the pouring sealant 9 can be uniformly covered on the top of the battery module when the movable block 5 moves back and forth, the battery pack can be cured for 8 hours at 25 ℃, the heat conduction of the top BMS management module can be blocked by utilizing the sealing performance and the heat insulation performance of the pouring sealant 9, the heat conduction of the top BMS management module can be ensured, the working, the battery outer wall can be extruded to the elastic ring 4 in the constant head tank 3, realizes sealed effect, avoids pouring sealant 9 to leak downwards, causes the waste, and first conveyer pipe 12 and second conveyer pipe 14 are made by metal or plastics, and the hardness is higher, thereby can stretch hose 13 when the movable block 5 slides.

Example 1:

connecting 100 18650 batteries 20 in series and series, pouring a pouring sealant 9 with the viscosity of 5000cP, the density of 0.56g/cm3 and the thermal conductivity of 0.10W/(mK), and curing at 25 ℃ for 8 hours; the charging multiplying power of the battery module is 2C, the discharging multiplying power is 1C, and the temperature of the battery module is tested; the maximum temperature of 100 batteries tested was 46 ℃, and the temperature of the BMS management module was 108 ℃. Compared with the battery module without the heat insulation pouring sealant 9, the maximum temperature of the battery is 56 ℃, and the temperature of the BMS management module is 108 ℃. The temperature of the battery module after the heat insulation pouring sealant 9 is injected is 10 ℃ lower than that of the module without the pouring sealant 9.

Example 2:

connecting 100 18650 batteries 20 in series and series, pouring a pouring sealant 9 with the viscosity of 5000cP, the density of 0.56g/cm3 and the thermal conductivity of 0.10W/(mK), and curing at 25 ℃ for 8 hours; the charging multiplying power of the battery module is 3C, the discharging multiplying power is 1C, and the temperature of the battery module is tested; the maximum temperature of 100 batteries is 49 ℃ and the temperature of the BMS management module is 112 ℃ after testing. Compared with the battery module without the heat insulation pouring sealant 9, the maximum temperature of the battery is 60 ℃, and the temperature of the BMS management module is 112 ℃. The temperature of the battery module after the heat insulation pouring sealant 9 is injected is 11 ℃ lower than that of the module without the pouring sealant 9.

Example 3:

connecting 100 18650 batteries 20 in series and series, pouring a pouring sealant 9 with the viscosity of 5000cP, the density of 0.56g/cm3 and the thermal conductivity of 0.10W/(mK), and curing at 25 ℃ for 8 hours; the charging multiplying power of the battery module is 5C, the discharging multiplying power is 1C, and the temperature of the battery module is tested; the maximum temperature of 100 batteries tested was 52 ℃ and the temperature of the BMS management module was 116 ℃. Compared with the battery module without the heat insulation pouring sealant 9, the maximum temperature of the battery is 64 ℃, and the temperature of the BMS management module is 116 ℃. The temperature of the battery module after the heat insulation pouring sealant 9 is injected is 12 ℃ lower than that of the module without the pouring sealant 9.

The utility model also provides a thermal-insulated structure of cylinder battery module, include jar 6 inside puddler 15 that is provided with of body, 6 tops of the jar body are provided with the driving motor that 15 transmissions of puddler are connected, 6 inside heating plate 16 that still are provided with of the jar body, 1 inside fluting 17 with 2 sliding connection of locating plate that is provided with of box, 17 inside second screw rods 18 that are provided with of fluting, 18 one ends of second screw rods run through locating plate 2 and with 2 threaded connection of locating plate, 18 other end transmissions of second screw rods are connected with second gear motor 19.

As shown in fig. 2, 3 and 5, the embodiment specifically includes: the stirring rod 15 in the tank body 6 can stir the pouring sealant 9 in real time under the driving of the driving motor, so that the pouring sealant 9 is ensured to be uniformly mixed, the heating plate 16 can provide a heat preservation effect for the inside of the tank body 6, the pouring sealant 9 is prevented from being solidified, the second speed reducing motor 19 can drive the positioning plate 2 to vertically slide downwards along the groove 17 through the second screw rod 18, and therefore the contact area between the positioning plate 2 and the pouring sealant 9 is reduced, and the subsequent processed battery module can be taken out conveniently.

The utility model discloses the theory of operation:

referring to the attached drawings 1-5 of the specification, when the movable block 5 moves back and forth, the pouring sealant 9 can be uniformly covered on the top of the battery module, the heat conduction of the top BMS management module to the battery is blocked by utilizing the sealing property and the heat insulation property of the pouring sealant 9, the working temperature range of the battery is kept in a reasonable temperature range, and the elastic ring 4 in the positioning groove 3 can extrude the outer wall of the battery to realize the sealing effect;

referring to the attached

drawings

2, 3 and 5 in the specification, the stirring rod 15 is driven by the driving motor to stir the pouring sealant 9 in real time, the heating plate 16 provides a heat preservation effect for the interior of the tank body 6, and the second speed reducing motor 19 drives the positioning plate 2 to vertically slide downwards along the groove 17 through the second screw 18, so that the contact area between the positioning plate 2 and the pouring sealant 9 is reduced.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the 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 thermal-insulated structure of cylinder battery module, includes box (1), positioning mechanism and filling mechanism, its characterized in that:

the positioning mechanism comprises a positioning plate (2), positioning grooves (3) and elastic rings (4), the positioning plate (2) is positioned in the box body (1) and is in sliding connection with the box body (1), the surface of the positioning plate (2) is provided with a plurality of uniformly distributed positioning grooves (3), and the elastic rings (4) are bonded in the plurality of positioning grooves (3);

filling mechanism is including movable block (5), conveying mechanism and a jar body (6), box (1) both sides are seted up can with movable block (5) sliding connection's spout (7), opening (8) have been seted up to movable block (5) lower surface, movable block (5) upper surface intercommunication has conveying mechanism, the conveying mechanism other end and jar body (6) intercommunication, jar body (6) inside is provided with casting glue (9), spout (7) inside is provided with first screw rod (10), just first screw rod (10) and movable block (5) threaded connection, the fixed first gear motor (11) of being connected with first screw rod (10) transmission that are provided with in the box (1) outside.

2. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: conveying mechanism is including first conveyer pipe (12), hose (13) and second conveyer pipe (14), first conveyer pipe (12) and jar body (6) intercommunication, be provided with the delivery pump on first conveyer pipe (12), first conveyer pipe (12) other end intercommunication has hose (13), hose (13) other end intercommunication has second conveyer pipe (14), second conveyer pipe (14) and movable block (5) intercommunication.

3. The thermal insulation structure of the cylindrical battery module according to claim 2, wherein: the first delivery pipe (12) and the second delivery pipe (14) are made of metal or plastic material, and the hose (13) and the elastic ring (4) are made of elastic rubber material.

4. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: the utility model discloses a jar body, including jar body (6), jar body (6) inside is provided with puddler (15), the driving motor that puddler (15) transmission is connected is provided with at the jar body (6) top, jar body (6) inside still is provided with heating plate (16).

5. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: the box (1) is inside to be provided with fluting (17) with locating plate (2) sliding connection, fluting (17) is inside to be provided with second screw rod (18), second screw rod (18) one end run through locating plate (2) and with locating plate (2) threaded connection, second screw rod (18) other end transmission is connected with second gear motor (19).

6. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: the bottom of the box body (1) is fixedly provided with a workbench.

7. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: the outside of the tank body (6) is communicated with a feeding pipe.

8. The thermal insulation structure of the cylindrical battery module according to claim 1, wherein: the distance between adjacent positioning grooves (3) is 1.5 mm.