CN218731438U - Stacking type variable-capacity lithium battery module for central power supply - Google Patents

Abstract

The application discloses a stacked variable-capacity lithium battery module for a centralized power supply, which comprises a shell, a power supply module and a power supply module, wherein the shell comprises a top cover, a middle seat and a base; the lithium battery management control board is provided with a positive output terminal and a negative output terminal and is arranged in the top cover; a plurality of lithium battery power supply unit, install respectively in well seat and base, the quantity of well seat is more than one, connect in parallel each other between each lithium battery power supply unit, the lithium battery power supply unit that is located the top supplies power to lithium battery management control panel, in daily use, through adopting above-mentioned technical scheme, in daily use, according to the different capacity demands to battery module, the quantity of seat in the adjustment, install well seat between base and top cap, the lithium battery power supply unit that is located base and well seat connects in parallel each other and supplies power to lithium battery management control panel, connect external equipment through positive output terminal and negative output terminal and supply power, spare and accessory parts are reduced and are convenient for purchase and production management.

Description

Stacking type variable-capacity lithium battery module for central power supply

Technical Field

The utility model relates to a fire control electron field specifically is a stacking type variable capacity lithium battery module for centralized power supply.

Background

Fire emergency lighting and evacuation indication systems are essentially ancillary systems to automatic fire alarm systems. The escape system is connected with the automatic fire alarm system, so that fire information and the development condition and trend of a fire are obtained, and the escape route is dynamically indicated by actively adjusting the direction of the evacuation indicator lamp through the controller of the system, so that escape personnel can evacuate a dangerous environment more safely, accurately and rapidly, and casualties and property loss are reduced to the maximum extent. The system consists of an intelligent evacuation controller (host), lamps, a centralized power supply, other communication (control) equipment and the like. The traditional centralized power supply adopts a lead-acid battery as an energy storage carrier and has the defects of large volume and weight, limited battery capacity and short service life. When the capacity of the battery of the centralized power supply needs to be changed, the capacity can be changed only by replacing lead-acid batteries with different models, and the sizes (length, width and height) of the batteries with different models are different, so that the structure of the centralized power supply also needs to be adjusted correspondingly. The lithium battery is used as an energy storage carrier of the battery, and has the advantages of large capacity, light weight and long service life. The battery adopts the modular design, and the capacity size of the battery can be flexibly adjusted by increasing the corresponding battery modules, so that the battery modules with different capacities can be quickly assembled, and meanwhile, the number of spare parts is reduced, so that the purchasing and the production management are convenient, and the improvement is needed.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art.

The application provides a formula of piling up variable capacity lithium battery module for centralized power supply includes:

a housing comprising a top cover, a middle seat and a base;

a lithium battery management control board which is provided with a positive output terminal and a negative output terminal and is arranged in the top cover;

the lithium battery power supply units are respectively arranged in the middle seat and the base;

the number of the middle seats is more than one, the lithium battery power supply units are connected in parallel, and the lithium battery power supply unit positioned at the top supplies power to the lithium battery management control board.

The lithium battery power supply unit includes:

the battery cavities are arranged on the middle seat or the base at intervals;

the lithium batteries are respectively and detachably arranged in the battery cavities;

the contact pieces are used for connecting the positive electrode and the negative electrode of the lithium batteries in the adjacent battery cavities;

the connecting pieces are used for being matched with the contact pieces to enable all the lithium batteries to be connected in series;

when the middle seats are connected with each other, the adjacent end surfaces of the corresponding contact pieces in the middle seats are in contact with each other to be electrified.

Further comprising:

the top ends of the positive and negative welding insertion pieces are electrically connected with the lithium battery management control board;

the lower ends of the pair of positive and negative welding insertion sheets are respectively contacted with the contact piece at the head end of the positive electrode and the contact piece at the head end of the negative electrode for electrification when the top cover is connected with the middle seat.

The contact sheet includes:

the middle part of the sheet body is provided with a notch;

the contact elastic sheets are arranged on the inner sides of the notches;

wherein, each contact spring is divided into a plurality of groups, and the movable end of each group extends to the two sides of the sheet body respectively.

The contact piece further includes:

the inserting part is arranged on the peripheral wall of the sheet body;

the clamping part is arranged on the peripheral wall of the sheet body opposite to the plug part and is used for clamping and matching with the plug part;

wherein, the clamping part comprises a plurality of claws which are arranged in a staggered and opposite way.

Further comprising:

the plurality of ventilation grooves are arranged at the bottom of the middle seat and are respectively communicated with the battery cavities;

and the arc-shaped baffles are respectively installed on the inner walls of the opposite sides of each battery cavity and used for supporting the lithium battery.

Further comprising:

the through hole penetrates through the top cover, the middle seat and the base from top to bottom;

one end of the telescopic screw sleeve is provided with an adjusting nut, and the other end of the telescopic screw sleeve movably penetrates into the through hole;

the thread end of the fastening bolt is movably inserted into the through hole and then is in threaded connection with the telescopic thread sleeve;

wherein, the length of the telescopic screw sleeve is adjustable.

The flexible swivel nut includes:

the sleeve is provided with internal threads and movably inserted in the through hole;

one end of the adjusting screw rod is connected with the internal thread of the sleeve through threads, and the other end of the adjusting screw rod is fixedly connected with the adjusting nut;

wherein, the top surface of adjusting nut and base bottom surface butt.

Further comprising:

the limiting sliding chute is arranged on the inner wall of the through hole and extends along the length direction of the through hole;

and the limiting sliding block is fixedly arranged on the outer wall of the sleeve and is in sliding fit with the limiting sliding groove.

Further comprising:

the bolts are respectively arranged on the middle seat and the top cover;

and the pin holes are arranged on the middle seat and the base and are used for inserting the pins.

The utility model has the advantages as follows:

1. through the mutual matching effect of the base, more than one middle seat, the top cover and the plurality of lithium battery power supply units, the number of the middle seats can be randomly adjusted by workers according to the requirements of a use scene, so that the capacity of a lithium battery module is flexibly adjusted, and spare and accessory parts are reduced, and the purchasing and production management are facilitated;

2. through the matching of the plurality of battery cavities, the plurality of lithium batteries, the plurality of contact pieces and the plurality of communication pieces, an independent series circuit is formed and can be connected with an adjacent series circuit in parallel, so that the middle seat, the top cover and the base can be quickly matched to form lithium battery modules with different capacities, the heat dissipation area of a battery cell can be increased, the heat dissipation performance is improved, when a certain lithium battery is damaged, only the lithium battery needs to be replaced, and the failure rate and the maintenance cost are reduced;

3. the contact area of the adjacent sheet bodies is increased through the clamping matching of the plurality of inserting parts and the clamping claws, and the stability of current transmission is improved;

4. through the matching of the through hole, the sleeve, the adjusting screw rod, the adjusting nut and the fastening bolt, under the condition of different numbers of the middle seats, the adjusting screw rod is rotated to adjust the total height of the sleeve and the adjusting nut, so that the base, the middle seat and the top cover can be fixedly connected and combined by using the same structure under the condition of different numbers of the middle seats, and spare and accessory parts are reduced, and the purchase and production management are facilitated;

5. through the cooperation of spacing spout and spacing slider, avoid the sleeve to rotate together along with adjusting screw or fastening bolt's rotation in the through hole, lead to adjusting screw and fastening bolt can't take place with telescopic internal thread connection fastening's phenomenon simultaneously.

Drawings

FIG. 1 is an isometric view of a stacked variable capacity lithium battery module for a centralized power supply in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic view of the internal structure of the seat in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a lithium battery power supply unit according to an embodiment of the present application;

FIG. 4 is a schematic view of a contact structure according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a telescopic screw sleeve according to an embodiment of the present application;

fig. 6 is a schematic view of a through-hole structure according to an embodiment of the present disclosure.

Reference numerals

101-top cover, 102-middle base, 103-base, 2-anode output terminal, 3-cathode output terminal, 4-lithium battery power supply unit, 401-battery cavity, 402-lithium battery, 403-connecting piece, 5-contact piece, 501-sheet body, 502-notch, 503-contact elastic piece, 504-plug part, 505-claw, 6-positive and negative welding plug piece, 7-ventilation groove, 8-arc baffle, 9-through hole, 10-adjusting nut, 11-fastening bolt, 12-sleeve, 13-adjusting screw, 14-limiting sliding groove, 15-limiting sliding block, 16-plug pin and 17-pin hole.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1 to 6, an embodiment of the present application provides a stacked type variable capacity lithium battery module for a centralized power supply, including a housing, which includes a top cover 101, a middle seat 102, and a base 103; a lithium battery management control board having a positive output terminal 2 and a negative output terminal 3 and mounted in the top cover 101; the lithium battery power supply units 4 are respectively installed in the middle seat 102 and the base 103, the number of the middle seat 102 is more than one, the lithium battery 402 power supply units 4 are connected in parallel, and the lithium battery 402 power supply unit 4 positioned at the topmost part supplies power to the lithium battery management control board.

Further, the power supply unit 4 of the lithium battery 402 comprises a plurality of battery cavities 401 which are arranged on the middle seat 102 or the base 103 at intervals; a plurality of lithium batteries 402 detachably mounted in the battery cavities 401, respectively; a plurality of contact pieces 5 for connecting the positive and negative electrodes of the lithium batteries 402 in the adjacent battery cavities 401 to each other;

and a plurality of communication pieces 403 for connecting all the lithium batteries 402 in series in cooperation with the contact pieces 5, wherein when the plurality of middle bases 102 are connected to each other, the adjacent end surfaces of the corresponding contact pieces 5 positioned in the middle bases 102 are brought into contact with each other to be energized.

Further, still include a pair of positive negative welding inserted sheet 6, the top all is connected with lithium battery management control board electricity, and the low side of a pair of positive negative welding inserted sheet 6 contacts the circular telegram with the contact piece 5 of anodal head end and the contact piece 5 of negative pole head end respectively when top cap 101 and well seat 102 interconnect.

Further, the contact piece 5 includes a sheet body 501, which has a notch 502 at the middle; a plurality of contact spring pieces 503 installed inside the notch 502, each contact spring piece 503 is divided into a plurality of groups, and the movable ends of each group extend to two sides of the sheet body 501 respectively.

Further, the contact piece 5 further includes a plug portion 504 provided on the outer peripheral wall of the sheet body 501; the clamping portion is arranged on the outer peripheral wall of the sheet body 501 opposite to the plug portion 504 and used for being in clamping fit with the plug portion 504, and the clamping portion comprises a plurality of clamping claws 505 which are staggered and opposite.

Further, the battery pack also comprises a plurality of ventilation grooves 7 which are arranged at the bottom of the middle seat 102 and are respectively communicated with the battery cavities 401; and a plurality of arc-shaped baffles 8 are respectively arranged on the inner walls of the opposite sides of each battery cavity 401 and used for supporting the lithium batteries 402.

Further, the device also comprises a through hole 9 which vertically penetrates through the top cover 101, the middle seat 102 and the base 103; one end of the telescopic screw sleeve is provided with an adjusting nut 10, and the other end of the telescopic screw sleeve movably penetrates through the through hole 9; the threaded end of the fastening bolt 11 is movably inserted into the through hole 9 and then is in threaded connection with the telescopic thread insert; wherein, the length of the telescopic screw sleeve is adjustable.

Further, the telescopic screw sleeve comprises a sleeve 12 which is provided with an internal thread and movably inserted in the through hole 9; one end of the adjusting screw 13 is connected with the internal thread of the sleeve 12 through a thread, the other end is fixedly connected with the adjusting nut 10, and the top surface of the adjusting nut 10 is abutted against the bottom surface of the base 103.

Furthermore, the device also comprises a limiting sliding chute 14 which is arranged on the inner wall of the through hole 9 and extends along the length direction of the through hole 9; and the limiting sliding block 15 is fixedly arranged on the outer wall of the sleeve 12 and is in sliding fit with the limiting sliding groove 14.

Further, the device also comprises a plurality of bolts 16 which are respectively arranged on the middle seat 102 and the top cover 101; a plurality of pin holes 17 which are arranged on the middle seat 102 and the base seat 103 for inserting the pins 16.

In the basic embodiment of the application, because the above structure is adopted, a plurality of lithium batteries 402 are respectively placed into corresponding battery cavities 401 as required, each contact elastic sheet 503 is respectively contacted with the positive electrode and the negative electrode of the adjacent lithium battery 402, one or more middle bases 102 overlapped with each other are placed on the top of the base 103, the insertion part 504 on each sheet body 501 adjacent up and down is inserted between a plurality of claws 505 of the adjacent sheet body 501, each claw 505 is clamped and matched with the insertion part 504, then the top cover 101 is arranged on the top of the uppermost middle base 102, the sleeve 12 is inserted into the through hole, the adjusting screw 13 is rotated through the adjusting nut 10, the sleeve 12 is moved to the other port of the through hole, the limiting slide block 15 moves along with the sleeve 12 and simultaneously slides in the limiting slide groove 14 until the top end of the sleeve 12 is contacted with the threaded end of the fastening bolt 11, the fastening bolt 11 is rotated by using a tool, the threaded end of the fastening bolt 11 is in threaded connection with the internal thread of the sleeve 12, and as the fastening bolt 11 is screwed, a tensile force is applied to the sleeve 12, so that the thread of the adjusting bolt is tightly contacted with the internal thread of the sleeve 12, and the installation and the fixation is completed;

preferably, when the middle base 102 and the top cover 101 are installed, the bolts 16 are inserted into the corresponding pin holes 17, so as to pre-position the base 103, the middle base 102 and the top cover 101, and provide support for the side walls of the base 103, the middle base 102 and the top cover 101.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A stacked variable capacity lithium battery module for a concentrated power supply, comprising:

a housing comprising a top cover (101), a middle seat (102), and a base (103);

a lithium battery management control board which is provided with a positive electrode output terminal (2) and a negative electrode output terminal (3) and is arranged in the top cover (101);

the lithium battery power supply units (4) are respectively arranged in the middle seat (102) and the base (103);

the number of the middle seats (102) is more than one, the power supply units (4) of the lithium batteries (402) are connected in parallel, and the power supply unit (4) of the lithium battery (402) positioned at the topmost part supplies power to the lithium battery management control board.

2. A stacked variable capacity lithium battery module for a concentrated power supply according to claim 1, wherein the power supply unit (4) of the lithium battery (402) comprises:

the battery cavities (401) are arranged on the middle seat (102) or the base (103) at intervals;

the lithium batteries (402) are respectively and detachably mounted in the battery cavities (401);

the contact pieces (5) are used for connecting the positive and negative electrodes of the lithium batteries (402) in the adjacent battery cavities (401) with each other;

a plurality of communication pieces (403) for connecting all the lithium batteries (402) in series in cooperation with the contact pieces (5);

when the plurality of middle seats (102) are connected with each other, the adjacent end surfaces of the corresponding contact pieces (5) positioned in the middle seats (102) are mutually contacted and electrified.

3. The stacked variable capacity lithium battery module for a concentrated power supply according to claim 2, further comprising:

the top ends of the positive and negative welding insertion pieces (6) are electrically connected with the lithium battery management control board;

the lower ends of the pair of positive and negative welding insertion sheets (6) are respectively contacted and electrified with the contact sheet (5) at the head end of the positive pole and the contact sheet (5) at the head end of the negative pole when the top cover (101) is connected with the middle seat (102).

4. The stacked type variable capacity lithium battery module for a concentrated power supply according to claim 2 or 3, wherein the contact sheet (5) comprises:

a sheet body (501) with a notch (502) in the middle;

a plurality of contact elastic sheets (503) arranged inside the notch (502);

the contact spring pieces (503) are divided into a plurality of groups, and the movable ends of the groups extend to two sides of the sheet body (501) respectively.

5. The stacked type variable capacity lithium battery module for a concentrated power supply according to claim 4, wherein the contact sheet (5) further comprises:

an insertion part (504) provided on the outer peripheral wall of the sheet body (501);

the clamping part is arranged on the peripheral wall of the sheet body (501) opposite to the plug part (504) and is used for clamping and matching with the plug part (504);

wherein, the clamping part comprises a plurality of claws (505) which are staggered and opposite.

6. The stacked variable capacity lithium battery module for a concentrated power supply according to claim 2, further comprising:

the plurality of ventilation grooves (7) are arranged at the bottom of the middle seat (102) and are respectively communicated with the battery cavities (401);

and the arc-shaped baffles (8) are respectively arranged on the inner walls of the opposite sides of the battery cavities (401) and used for supporting the lithium batteries (402).

7. The stacked variable capacity lithium battery module for a concentrated power supply according to claim 1, further comprising:

the through hole (9) penetrates through the top cover (101), the middle seat (102) and the base (103) from top to bottom;

one end of the telescopic screw sleeve is provided with an adjusting nut (10), and the other end of the telescopic screw sleeve is movably inserted into the through hole (9);

the thread end of the fastening bolt (11) is movably inserted into the through hole (9) and then is in threaded connection with the telescopic thread sleeve;

wherein, the length of the telescopic screw sleeve is adjustable.

8. The stacked variable capacity lithium battery module for a concentrated power supply as claimed in claim 7, wherein the telescopic screw sleeve comprises:

a sleeve (12) with an internal thread and movably inserted in the through hole (9);

one end of the adjusting screw rod (13) is connected with the internal thread of the sleeve (12) through threads, and the other end of the adjusting screw rod is fixedly connected with the adjusting nut (10);

wherein the top surface of the adjusting nut (10) is abutted against the bottom surface of the base (103).

9. The stacked variable capacity lithium battery module for a concentrated power supply according to claim 8, further comprising:

the limiting sliding chute (14) is arranged on the inner wall of the through hole (9) and extends along the length direction of the through hole (9);

and the limiting sliding block (15) is fixedly arranged on the outer wall of the sleeve (12) and is in sliding fit with the limiting sliding groove (14).

10. The stacked variable capacity lithium battery module for a concentrated power supply according to claim 7, further comprising:

a plurality of bolts (16) which are respectively arranged on the middle seat (102) and the top cover (101);

and a plurality of pin holes (17) which are arranged on the middle seat (102) and the base (103) and are used for inserting the pins (16).

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