CN213521375U

CN213521375U - Household energy storage anti-overcharging lithium ion battery pack

Info

Publication number: CN213521375U
Application number: CN202022944775.8U
Authority: CN
Inventors: 刘再成
Original assignee: Huizhou Meianshi Energy Technology Co Ltd
Current assignee: Huizhou Meianshi Energy Technology Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-06-22
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a domestic energy storage is with preventing overcharging lithium ion battery group, including box, base and lithium cell group, the top fixed mounting of base has the box, the surface movable mounting of box has prevents fire door, the fire door one end that prevents on box surface is provided with the thermovent, the fire door one side fixed mounting that prevents on box surface has relay controller, relay controller installs the prompting device bottom the box fixed surface, the inside of box is provided with the flame retardant coating, the inside of flame retardant coating is provided with the dampproof course, the inside fixed mounting of box between the dampproof course has lithium cell group, and the top fixed mounting of lithium cell group has the protection shield. The utility model discloses a be provided with a series of structures and make this device appear the condition of overcharging when the in-process that uses can prevent to charge, increased the security of device, can externally take place the fire source when protection lithium cell group.

Description

Household energy storage anti-overcharging lithium ion battery pack

Technical Field

The utility model relates to a lithium ion battery group technical field specifically is a domestic energy storage is with preventing overcharging lithium ion battery group.

Background

The lithium ion battery is a secondary battery, which mainly depends on lithium ion moving between a positive electrode and a negative electrode to work, in the process of charging and discharging, Li + is inserted and extracted back and forth between the two electrodes, during charging, Li + is extracted from the positive electrode and inserted into the negative electrode through an electrolyte, the negative electrode is in a lithium-rich state, and during discharging, the opposite is true, and when standby electric energy is carried out in daily life of a family, a lithium ion battery pack is needed to store the electric energy.

The existing lithium ion battery pack for household energy storage has the following defects:

1. the existing household energy storage lithium ion battery pack cannot prevent overcharge during charging, and has potential safety hazards;

2. the existing lithium ion battery pack for household energy storage cannot protect the lithium ion battery pack when a fire source occurs outside, and therefore the existing problem is solved by the anti-overcharging lithium ion battery pack for household energy storage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a domestic energy storage is with preventing overcharging lithium ion battery group to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an overcharge-proof lithium ion battery pack for household energy storage comprises a box body, a base and a lithium ion battery pack, wherein wheels are fixedly arranged on two sides of the bottom of the base, the bottom of the base between the wheels is fixedly provided with a fixed rod, the top of the base is fixedly provided with a box body, a fireproof door is movably arranged on the surface of the box body, a heat dissipation opening is arranged at one end of the fireproof door on the surface of the box body, a filter screen is fixedly arranged between the heat dissipation opening and the fireproof door, a connecting bolt is movably arranged between the filter screen and the box body, a relay controller is fixedly arranged on one side of the fireproof door on the surface of the box body, the surface of the box body at the bottom of the relay controller is fixedly provided with a prompter, a fireproof layer is arranged inside the box body, the inside of flame retardant coating is provided with the dampproof course, the inside fixed mounting of box between the dampproof course has lithium cell group, and the top fixed mounting of lithium cell group has the protection shield.

Preferably, the top of the box body is movably provided with a box cover, and the top of the box cover is fixedly provided with a handle.

Preferably, a connecting piece is fixedly mounted on the other side of the box body at the top of the base, and a traction pile is fixedly mounted at the top of the connecting piece.

Preferably, the handle is fixedly installed on the other side of the surface of the fireproof door, and a rubber sleeve is arranged on the periphery of the handle.

Preferably, the surface of the fireproof door is fixed with a warning board, and the warning board is connected through bolts.

Preferably, a fixing part is fixedly arranged between the two sides of the prompter and the box body, and a fixing bolt is movably arranged between the fixing part and the box body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a user is connected outside charging structure and relay controller when charging to lithium cell group, user is through being connected outside transmission structure and relay controller and setting for charging voltage or time, detect voltage through relay controller, surpass the relay controller control current disconnection when the voltage that detects when the charge volume, and the control prompting device is put into suggestion sound and is reminded user of service and extract the power, prevent to lead to charging structure to break down because of the disconnected time overlength of filling, realize all filling of each monomer lithium cell of group battery through the protection shield, prevent that the phenomenon of putting appears in the lithium cell group, thereby the life of lithium cell group has been prolonged.

2. The utility model discloses a user of service will prevent that fire door opens when needs dispel the heat to lithium cell group, make the wind current pass through the inside that the thermovent got into the box, thereby realize dispelling the heat to lithium cell group, can close to prevent fire door and make the box be in encapsulated situation when not using device, prevent that fire door adopts the steel material and inside packing has fire resistive material, prevent that the burning source from getting into inside the box when preventing the outside fire of giving birth to through preventing fire door, the flame retardant coating inlayer adopts mineral glass magnesium fire resistive material, can resist 1500 degrees high temperatures, thereby realize preventing fires to the device, the burning source gets into inside firing lithium cell group of box and leads to the major accident such as explosion when preventing the outside conflagration that takes place, the security of the device of promotion, contain damp-proof particle through the moisture-proof layer inside, thereby prevent that the inside.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic view of a local structure of the protective net and the heat dissipation opening of the present invention;

FIG. 3 is a schematic view of a partial structure of the fireproof layer and the damp-proof layer of the present invention;

fig. 4 is the local structure schematic diagram of the lithium battery pack and the protection plate of the present invention.

In the figure: 1. a box cover; 101. a handle; 2. a box body; 201. a heat dissipation port; 3. a relay controller; 4. a prompter; 401. a fixing member; 402. a fixing bolt; 5. a base; 6. a wheel; 7. a fire door; 701. a handle; 702. a rubber sleeve; 703. a warning board; 8. drawing the pile; 801. a connecting member; 9. fixing the rod; 10. a filter screen; 1001. a connecting bolt; 11. a fire barrier layer; 12. a moisture barrier; 13. a protection plate; 14. a lithium battery pack.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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. 1-4, the present invention provides an embodiment: an overcharge-preventing lithium ion battery pack for household energy storage comprises a box body 2, a base 5 and a lithium ion battery pack 14, wherein wheels 6 are fixedly installed on two sides of the bottom of the base 5, fixing rods 9 are fixedly installed at the bottom of the base 5 between the wheels 6, the box body 2 is fixedly installed at the top of the base 5, a fireproof door 7 is movably installed on the surface of the box body 2, a heat dissipation opening 201 is formed in one end of the fireproof door 7 on the surface of the box body 2, a filter screen 10 is fixedly installed between the heat dissipation opening 201 and the fireproof door 7, a connecting bolt is movably installed between the filter screen 10 and the box body 2, a fireproof layer 11 is arranged inside the box body 2, a moistureproof layer 12 is arranged inside the fireproof layer 11, the relay controller 3 adopts a KZ-04AL-NET type relay controller, the prompter 4 adopts a JQ533 type prompter, the protective plate 13 adopts a ZB022, when a user needs to radiate the lithium battery pack 14, the fireproof door 7 is opened, air current enters the box body 2 through the radiating port 201, so that the lithium battery pack 14 is radiated, when the device is not used, the fireproof door 7 can be closed, so that the box body 2 is in a sealed state, the fireproof door 7 is made of steel materials, and is filled with fireproof materials, when an external fire breaks out, the fireproof door 7 can prevent a fire source from entering the box body 2, the inner layer of the fireproof layer 11 is made of mineral glass magnesium fireproof materials and can resist high temperature of 1500 ℃, so that the device is prevented from being subjected to fire, the fire source is prevented from entering the box body 2 to ignite the lithium battery pack 14 to cause major accidents such as explosion and the like when the external fire breaks out, the safety of the device is improved, the moistureproof particles are contained in the moistureproof layer 12, so that the lithium battery pack 14 is prevented from being affected by moisture in the box body 2, and the friction, thereby facilitating the user to move the device, when the device is not moved, the fixing rod 9 is screwed down to be in contact with the ground, the friction force between the base 5 and the ground is increased, thereby limiting the position of the device, the filter screen 10 can prevent dust and sundries from entering the interior of the box body 2, the relay controller 3 is fixedly arranged on one side of the fireproof door 7 on the surface of the box body 2, the prompter 4 is fixedly arranged on the surface of the box body 2 at the bottom of the relay controller 3, the lithium battery pack 14 is fixedly arranged in the box body 2 between the moisture-proof layers 12, the protection plate 13 is fixedly arranged on the top of the lithium battery pack 14, the user connects the external charging structure with the relay controller 3, the user connects the external transmitting structure with the relay controller 3 and sets the charging voltage or time, the voltage is detected through the relay controller 3, when the detected voltage exceeds the charging amount, the current is controlled to be disconnected through the relay, and control prompting device 4 and put into suggestion sound and remind the user of extracting the power, prevent to lead to charging structure to break down because of disconnected charge time overlength, realize all charging of each monomer lithium cell of group battery through protection shield 13, prevent that the phenomenon of overdischarging from appearing in lithium cell group 14 to the life of lithium cell group 14 has been prolonged.

Further, the top movable mounting of box 2 has case lid 1, and the top fixed mounting of case lid 1 has handle 101, and the user of service takes off case lid 1 through pulling handle 101 and maintains the inside lithium cell group 14 of box 2, and handle 101 multiplicable user of service palm and the frictional force between the case lid 1 to the user of being convenient for takes off case lid 1.

Further, box 2 opposite side fixed mounting at base 5 top has connecting piece 801, and the top fixed mounting of connecting piece 801 has a traction pile 8, and the user of service is connected with traction pile 8 through drawing the structure with the outside to it pulls the removal to the device to be convenient for the user of service.

Further, a handle 701 is fixedly installed on the other side of the surface of the fireproof door 7, a rubber sleeve 702 is arranged on the periphery of the handle 701, a user can open or close the fireproof door 7 by holding the handle 701 with a hand, the rubber sleeve 702 increases the friction force between the palm of the user and the handle 701, and the user is prevented from being out of hand when pulling the handle 701.

Further, that kind has warning sign 703 of preventing fire door 7's fixed surface, and warning sign 703 passes through bolted connection, shows warning mark through warning sign 703, reminds other people this device to have danger to reduce to have irrelevant personnel to open the device and operate the possibility that the accident takes place.

Further, a fixing part 401 is fixedly installed between two sides of the prompter 4 and the box body 2, a fixing bolt 402 is movably installed between the fixing part 401 and the box body 2, the contact area between the prompter 4 and the box body 2 is increased through the fixing part 401, and the fixing part 401 and the box body 2 are fixed through the fixing bolt 402, so that the stability of the prompter 4 is increased.

The working principle is as follows: when a user needs to radiate the lithium battery pack 14, the fireproof door 7 is opened, air current enters the box body 2 through the radiating port 201, so that the lithium battery pack 14 is radiated, when the device is not used, the fireproof door 7 can be closed, so that the box body 2 is in a sealed state, the fireproof door 7 is made of steel materials, and is filled with fireproof materials, when an external fire disaster is released, the fireproof door 7 can prevent a fire source from entering the box body 2, the fireproof layer 11 can resist 1500 ℃ high temperature, so that the device is prevented from being fired, the moistureproof particles are contained in the moistureproof layer 12, so that the lithium battery pack 14 is prevented from being affected by dampness in the box body 2, the user connects an external charging structure with the relay controller 3, the user connects the external transmitting structure with the relay controller 3 and sets charging voltage or time, and detects the voltage through the relay controller 3, when the detected voltage exceeds the charging amount, the current is controlled to be disconnected through the relay controller 3, the prompter 4 is controlled to put in prompt sound to remind a user of pulling out a power supply, and the charging structure is prevented from being broken due to overlong charging interruption time.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a domestic energy storage is with preventing overcharging lithium ion battery group, includes box (2), base (5) and lithium cell group (14), its characterized in that: the fire door structure is characterized in that wheels (6) are fixedly mounted on two sides of the bottom of the base (5), a fixing rod (9) is fixedly mounted at the bottom of the base (5) between the wheels (6), a box body (2) is fixedly mounted at the top of the base (5), a fire door (7) is mounted on the surface of the box body (2), a heat dissipation opening (201) is formed in one end of the fire door (7) on the surface of the box body (2), a filter screen (10) is fixedly mounted between the heat dissipation opening (201) and the fire door (7), a connecting bolt (1001) is movably mounted between the filter screen (10) and the box body (2), a relay controller (3) is fixedly mounted on one side of the fire door (7) on the surface of the box body (2), a prompter (4) is fixedly mounted on the surface of the box body (2) at the bottom of the relay, the inside of flame retardant coating (11) is provided with dampproof course (12), box (2) inside fixed mounting between dampproof course (12) has lithium cell group (14), and the top fixed mounting of lithium cell group (14) has protection shield (13).

2. The anti-overcharge lithium ion battery pack for household energy storage of claim 1, wherein: the top movable mounting of box (2) has case lid (1), and the top fixed mounting of case lid (1) has handle (101).

3. The anti-overcharge lithium ion battery pack for household energy storage of claim 1, wherein: the other side of the box body (2) at the top of the base (5) is fixedly provided with a connecting piece (801), and the top of the connecting piece (801) is fixedly provided with a traction pile (8).

4. The anti-overcharge lithium ion battery pack for household energy storage of claim 1, wherein: the handle (701) is fixedly installed on the other side of the surface of the fireproof door (7), and a rubber sleeve (702) is arranged on the periphery of the handle (701).

5. The anti-overcharge lithium ion battery pack for household energy storage of claim 1, wherein: the surface of the fireproof door (7) is fixed with a warning board (703), and the warning board (703) is connected through bolts.

6. The anti-overcharge lithium ion battery pack for household energy storage of claim 1, wherein: fixing parts (401) are fixedly installed between the two sides of the prompter (4) and the box body (2), and fixing bolts (402) are movably installed between the fixing parts (401) and the box body (2).