CN213459855U

CN213459855U - Over-current prevention device of lithium ion battery module

Info

Publication number: CN213459855U
Application number: CN202021827019.0U
Authority: CN
Inventors: 李龙德; 彭立军
Original assignee: Jiangsu Fengxin Energy Power Technology Co ltd
Current assignee: Jiangyin woyufu New Energy Vehicle Technology Co.,Ltd.
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-15
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a lithium ion battery module prevent overflowing device, including organism and cover, there is the module case bottom outer wall of cover through bolted connection, there is the installation base inner wall of module bottom of the case portion through bolted connection, and the top joint of installing the base has a plurality of lithium ion battery, lithium ion battery's top is provided with the battery and overflows the screening glass, there is temperature sensor one side of module incasement wall through bolted connection, there is control chip one side of organism inner wall through bolted connection, there is the warning light top one side of cover through bolted connection, a plurality of through-hole has all been seted up to the both sides outer wall of module case, the organism has a plurality of mounting panel with the both sides of cover all bond, and the inside threaded connection of mounting panel has the screw rod, the both sides of organism inner wall all bond there is. The utility model discloses a battery overflows the screening glass and reacts the overcurrent situation when the electric current increases rapidly, and the battery is protected to the resistance that becomes from the low resistance, and the protection battery does not receive the damage.

Description

Over-current prevention device of lithium ion battery module

Technical Field

The utility model relates to a lithium ion battery technical field especially relates to a lithium ion battery module prevents device that overflows.

Background

The lithium ion battery is a secondary battery, which mainly depends on the movement of lithium ions between a positive electrode and a negative electrode to work, and when the current of the battery exceeds a set current, the overcurrent-preventing device protects the battery and reduces the damage of the battery.

When the current of lithium ion battery module was unstable, the battery was if not carried out overcurrent protection, and the battery easily destroys, and the heat is easily piled up, when receiving outside striking, can't effectively protect, consequently, need to design the device that overflows of preventing of a lithium ion battery module and solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the battery that exists among the prior art if not carrying out overcurrent protection, the battery easily destroys, and the heat is easily piled up, when receiving outside striking, can't carry out the shortcoming of effective protection, and the device that overflows is prevented of a lithium ion battery module that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a lithium ion battery module prevent overflowing device, includes organism and cover, there is the module case bottom outer wall of cover through bolted connection, there is the installation base inner wall of module bottom of the case portion through bolted connection, and the top joint of installing the base has a plurality of lithium ion battery, lithium ion battery's top is provided with the battery and overflows the screening glass, there is temperature sensor one side of module incasement wall through bolted connection, there is control chip one side of organism inner wall through bolted connection, there is the warning light top one side of cover through bolted connection, a plurality of through-hole has all been seted up to the both sides outer wall of module case.

Further, a plurality of mounting plates are bonded on the two sides of the machine body and the machine cover, and the mounting plates are in threaded connection with screws.

Furthermore, the connecting plates are bonded on two sides of the inner wall of the machine body, the interior of each connecting plate is connected with a micro fan through a bolt, and ventilation openings are formed in two sides of the machine body.

Furthermore, an insulating layer is bonded on the inner wall of the bottom of the machine body, and a moisture-proof layer is bonded on the outer wall of the top of the insulating layer.

Further, there is the link at the top of dampproof course through bolted connection, and the outside both sides of link all overlap and be equipped with the sleeve, telescopic one side has the movable rod through freely movable joint swing joint.

Furthermore, the top of the movable rod is movably connected with an anti-collision plate through a movable joint, and springs are sleeved on two outer sides of the connecting frame.

Furthermore, warning light, micro-fan, temperature sensor and battery overflow protection piece all form electric connection through transmission line and control chip, the observation window has been seted up to one side of organism.

The utility model has the advantages that:

1. through the battery overcurrent protection piece and the control chip, the battery overcurrent protection piece reacts to the overcurrent condition when the current is rapidly increased, the battery is protected from low resistance and high resistance, and the battery is protected from being damaged.

2. Through the warning light and the micro fan who set up, make the warning light shine through control chip when the temperature is higher and remind, the micro fan operation dispels the heat to organism inside, and the heat is effluvium by the vent.

3. Through the anticollision board that sets up with promote the sleeve, when receiving outside striking, the module case pushes down the anticollision board and makes the movable rod promote the sleeve, and the spring extrusion cushions the impact force, reduces the damage of battery.

4. Through the dampproof course and the observation window that set up, the dampproof course carries out dampproofing protection to organism inside, reduces the inside moisture of organism, keeps the inside drying of organism, and the observation window can be observed organism internal plant.

Drawings

Fig. 1 is a schematic structural diagram of an overcurrent protection device of a lithium ion battery module according to the present invention;

fig. 2 is a schematic structural view of a cover and a module box of an overcurrent prevention device of a lithium ion battery module according to the present invention;

fig. 3 is a schematic view of an internal structure of an overcurrent protection device of a lithium ion battery module according to the present invention;

fig. 4 is a schematic view of a partial structure of an overcurrent protection device of a lithium ion battery module according to the present invention;

fig. 5 is a schematic view of an electrical connection relationship of an overcurrent prevention device of a lithium ion battery module according to the present invention.

In the figure: the device comprises a machine body 1, a machine cover 2, a mounting plate 3, a screw rod 4, a module box 5, a mounting base 6, a lithium ion battery 7, a through hole 8, a battery overcurrent protection plate 9, a warning lamp 10, a connecting plate 11, a vent 12, a micro fan 13, a control chip 14, an insulating layer 15, a damp-proof layer 16, an anti-collision plate 17, a temperature sensor 18, a sleeve 19, a connecting frame 20, a spring 21, a movable rod 22 and an observation window 23.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an overcurrent protection device for a lithium ion battery module comprises a machine body 1 and a machine cover 2, the outer wall of the bottom of the machine cover 2 is connected with a module box 5 through a bolt, the inner wall of the bottom of the module box 5 is connected with an installation base 6 through a bolt, a plurality of lithium ion batteries 7 are clamped at the top of the installation base 6, a battery overcurrent protection plate 9 is arranged at the top of each lithium ion battery 7, the battery overcurrent protection plate 9 reacts to overcurrent conditions when current is rapidly increased to protect the batteries from low resistance and high resistance, one side of the inner wall of the module box 5 is connected with a temperature sensor 18 through a bolt, one side of the inner wall of the machine body 1 is connected with a control chip 14 through a bolt, the model of the temperature sensor 18 is MS39/BS-803, one side of the top of the machine cover 2 is connected with a warning lamp 10 through a bolt, and when, temperature sensor 18 is SMD temperature sensor, makes warning light 10 light through control chip 14 when the temperature is higher, and a plurality of through-hole 8 has all been seted up to the both sides outer wall of module case 5.

The both sides of organism 1 and cover 2 all bond and have a plurality of mounting panel 3, and the inside threaded connection of mounting panel 3 has screw rod 4, inserts the inside of mounting panel 3 with screw rod 4, uses the nut to install, and organism 1 is connected with cover 2.

Connecting plate 11 has all been bonded to the both sides of 1 inner wall of organism, and there is micro fan 13 connecting plate 11's inside through bolted connection, and vent 12 has all been seted up to the both sides of organism 1, and when the temperature was higher, micro fan 13 operation dispels the heat to 1 inside of organism, and the heat is by vent 12 effluvium.

The inner wall of organism 1 bottom bonds and has insulating layer 15, and the top outer wall of insulating layer 15 bonds and has dampproof course 16, and dampproof course 16 carries out dampproofing protection to organism 1 inside.

There is link 20 at the top of dampproof course 16 through bolted connection, and the outside both sides of link 20 all overlap and be equipped with sleeve 19, and there is a movable rod 22 one side of sleeve 19 through activity joint swing joint, and when receiving outside striking, module case 5 pushes down crashproof board 17 and makes movable rod 22 promote sleeve 19.

The top of the movable rod 22 is movably connected with an anti-collision plate 17 through a movable joint, springs 21 are sleeved on two sides of the outer portion of the connecting frame 20, the springs 21 are extruded to buffer the impact force, and damage to the battery is reduced.

Warning light 10, micro-fan 13, temperature sensor 18 and battery overflow protection piece 9 and all form electric connection through transmission line and control chip 14, and control chip 14 controls warning light 10, micro-fan 13, temperature sensor 18 and battery respectively and overflows protection piece 9, and observation window 23 has been seted up to one side of organism 1, and observation window 23 is observed organism 1 is inside.

The utility model discloses a theory of operation does: when the device is used, the screw rod 4 is inserted into the mounting plate 3 and is mounted by using the nut, the machine body 1 and the machine cover 2 can be connected, the battery overcurrent protection plate 9 is arranged above the lithium ion battery 7, the battery overcurrent protection plate 9 reacts to the overcurrent situation when the current is rapidly increased, the battery is protected from low resistance and high resistance, the battery is protected from damage, the battery heat is accumulated when the current is larger, the temperature sensor 18 is a patch type temperature sensor, the warning lamp 10 is lightened by the control chip 14 when the temperature is higher, the warning is reminded, the micro fan 13 runs to radiate the inside of the machine body 1, the heat is radiated from the ventilation opening 12, when the external impact is received, the module box 5 presses the anti-collision plate 17 to enable the movable rod 22 to push the sleeve 19, the spring 21 extrudes to buffer the impact force, the damage of the battery is reduced, the observation window 23 observes the inside of the machine body, the moisture barrier 16 protects the interior of the housing 1 from moisture.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a lithium ion battery module prevent overflowing device, includes organism (1) and cover (2), its characterized in that, there is module case (5) bottom outer wall of cover (2) through bolted connection, there is installation base (6) inner wall of module case (5) bottom through bolted connection, and the top joint of installation base (6) has a plurality of lithium ion battery (7), the top of lithium ion battery (7) is provided with battery and overflows screening glass (9), there is temperature sensor (18) one side of module case (5) inner wall through bolted connection, there is control chip (14) one side of organism (1) inner wall through bolted connection, there is warning light (10) top one side of cover (2) through bolted connection, a plurality of through-hole (8) have all been seted up to the both sides outer wall of module case (5).

2. The device of claim 1, wherein a plurality of mounting plates (3) are bonded to both sides of the machine body (1) and the machine cover (2), and a screw (4) is connected to the mounting plates (3) through internal threads.

3. The device of claim 1, wherein the connecting plates (11) are bonded to two sides of the inner wall of the machine body (1), the interior of each connecting plate (11) is connected with a micro fan (13) through a bolt, and the two sides of the machine body (1) are provided with ventilation openings (12).

4. The overcurrent prevention device for the lithium ion battery module as claimed in claim 1, wherein an insulating layer (15) is bonded to an inner wall of the bottom of the machine body (1), and a moisture-proof layer (16) is bonded to an outer wall of the top of the insulating layer (15).

5. The over-current prevention device of the lithium ion battery module according to claim 4, wherein the top of the moisture-proof layer (16) is connected with a connecting frame (20) through a bolt, two outer sides of the connecting frame (20) are sleeved with sleeves (19), and one side of each sleeve (19) is movably connected with a movable rod (22) through a movable joint.

6. The overcurrent protection device for the lithium ion battery module as claimed in claim 5, wherein the top of the movable rod (22) is movably connected with an anti-collision plate (17) through a movable joint, and springs (21) are sleeved on two outer sides of the connecting frame (20).

7. The over-current prevention device of the lithium ion battery module according to claim 3, wherein the warning light (10), the micro fan (13), the temperature sensor (18) and the battery over-current protection sheet (9) are electrically connected with the control chip (14) through transmission lines, and one side of the machine body (1) is provided with an observation window (23).