CN210467931U - Battery module assembly, battery pack and device - Google Patents
Battery module assembly, battery pack and device Download PDFInfo
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- CN210467931U CN210467931U CN201921643449.4U CN201921643449U CN210467931U CN 210467931 U CN210467931 U CN 210467931U CN 201921643449 U CN201921643449 U CN 201921643449U CN 210467931 U CN210467931 U CN 210467931U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application relates to the technical field of energy storage devices, in particular to a battery module assembly, a battery pack and a device, wherein the battery module assembly comprises a plurality of battery modules, each battery module comprises a plurality of battery monomers, end plates and side plates, and the side plates and the end plates are connected end to form accommodating cavities; the end plate is provided with a first slot; the side plate is provided with a first inserting part, the first inserting part is inserted and matched with the first slot, and a second slot is formed in one side of the first inserting part, which is far away from the end plate; the first fixing piece is matched with the second slot and the end plate respectively. In the battery module subassembly that this application provided, through setting up first mounting to make first mounting respectively with second slot and end plate cooperation, restricted the degree of freedom of end plate and curb plate, effectively prevented to take place relative displacement between curb plate and the end plate, avoided the hookup location department of curb plate and end plate to produce stress concentration, improved the stability and the reliability that end plate and curb plate are connected, thereby improved battery module subassembly's life-span.
Description
Technical Field
The application relates to the technical field of energy storage devices, in particular to a battery module assembly, a battery pack and a device.
Background
Along with the rapid development of pure electric vehicles industry, in order to improve competitiveness, the requirement of a finished automobile factory client on the structural strength of a battery module is higher and higher, so that the requirement of a terminal user on high endurance and adaptability to various severe working conditions is met.
The case of the battery module is one of the core components of the battery module, and the interior of the case forms a space for accommodating a battery. The casing of traditional battery module mainly includes a pair of curb plate, a pair of end plate, bottom plate and roof, and wherein, curb plate and end plate all adopt the metal material to link together both through the welding, however, curb plate and end plate welding back, easy production stress concentration of welding seam position department makes the welding seam position break off, leads to battery module's structural reliability poor.
SUMMERY OF THE UTILITY MODEL
The application provides a battery module subassembly, battery package and device to avoid end plate and curb plate hookup location to take place stress concentration, improved battery module's structural reliability.
The present application provides in a first aspect a battery module assembly, including a plurality of battery modules, wherein, every the battery module includes:
a plurality of battery cells;
an end plate;
the side plates and the end plates are connected end to form accommodating cavities for accommodating the plurality of battery monomers;
the surface of the end plate facing the side plate is provided with a first slot; the side plate is provided with a first inserting part, the first inserting part is inserted and matched with the first slot, and a second slot is formed in one side of the first inserting part, which is far away from the end plate;
the first fixing piece is matched with the second slot and the end plate to be connected with the end plate and the side plate.
Optionally, the first fixing piece comprises a second insertion part and a first connecting part; the second inserting part is matched with the second slot; the first connecting portion is connected to the top of the end plate.
Optionally, the first fixing member includes a body extending in a height direction of the battery module;
the second inserting part is formed on one side of the body facing the second slot;
the first connecting portion is formed at the top end of the body and extends toward the end plate.
Optionally, a stepped groove is formed at the top of the end plate;
the first connecting portion is accommodated in the stepped groove, and the first connecting portion is connected to the bottom surface of the stepped groove.
Optionally, a first fixing hole is formed in the bottom surface of the stepped groove;
the first connecting part is provided with a second fixing hole;
the first connecting part is connected with the end plate through a connecting part which is arranged in the first fixing hole and the second fixing hole in a penetrating mode.
Optionally, the plurality of battery modules include a first battery module and a second battery module, and the second battery module is arranged along the width direction of the first battery module;
the second slot of the first battery module and the second slot of the second battery module which are adjacent are butted to form a plug-in cavity;
the battery module assembly further comprises a second fixing piece, and the second fixing piece is in plug-in fit with the plug-in cavity.
Optionally, the second fixing member includes a third insertion part and a second connection part;
the third inserting part is inserted and matched with the inserting cavity;
the second connecting parts are connected to the tops of the end plates, facing the third inserting-connecting parts, and the second connecting parts are respectively connected to the tops of the end plates of the two adjacent battery modules.
Optionally, the plurality of battery modules include a first battery module and a third battery module, and the third battery module is arranged along the height direction of the first battery module;
a first guide groove is formed in the outer surface, far away from the battery monomer, of the end plate; the first guide groove extends along the height direction of the battery module;
the battery module assembly further comprises a guide block; the guide block is inserted in the first guide groove.
Optionally, the battery module assembly includes a backing plate;
the backing plate is located between the end plate of the first battery module and the end plate of the third battery module.
Optionally, the backing plate is formed with a second guide groove extending in a height direction of the battery module;
the guide block is sequentially inserted into the first guide groove and the second guide groove.
Optionally, guide portions are formed on both sides of the guide block in the width direction of the battery module;
the guide portion is respectively fitted with the first guide groove and the second guide groove.
The second aspect of the application provides a battery pack, which comprises the battery module assembly, and the battery pack further comprises a box body; the battery module assembly is fixed to the box body.
A third aspect of the present application provides a device using a battery cell as a power source, including a power source for providing a driving force to the device; the battery module assembly is configured to supply electric power to the power source.
The technical scheme provided by the application can achieve the following beneficial effects:
in the battery module subassembly, battery pack and device that this application provided, battery module subassembly includes a plurality of battery modules, including a plurality of battery monomers in every battery module, end plate and curb plate, and be used for connecting the first mounting of end plate and curb plate, wherein, the end plate is formed with first slot, the curb plate is formed with first grafting portion, and one side that first grafting portion deviates from the end plate forms the second slot, when the end plate is assembled with the curb plate, at first, the first grafting portion of curb plate is pegged graft with the first slot of end plate and is cooperated, then cooperate with first mounting and second slot, and simultaneously, first mounting still cooperates with the end plate, in order to realize the assembly of end plate and curb plate;
through the cooperation of first grafting portion and first slot, the connection of end plate and curb plate has been realized, through setting up first mounting, and make first mounting cooperate with second slot and end plate respectively, the degree of freedom of end plate and curb plate has been restricted, relative displacement has effectively been prevented to take place between curb plate and the end plate, the hookup location department of having avoided curb plate and end plate produces stress concentration, the stability and the reliability that end plate and curb plate are connected have been improved, thereby the life-span of battery module subassembly has been improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is an exploded schematic view of a battery module according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an end plate in a battery module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a first fixing member in a battery module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a battery module assembly according to an embodiment of the present disclosure;
fig. 6 is an exploded view of a battery module assembly according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a second fixing member in a battery module according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a battery pack according to an embodiment of the present application;
fig. 9 is an exploded view of a battery pack according to an embodiment of the present disclosure;
fig. 10 is a partially exploded view of a battery pack according to an embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of a guide block in a battery pack according to an embodiment of the present application.
Reference numerals:
100-a battery module assembly;
10-a battery module;
101-a first battery module;
102-a second battery module;
103-a third battery module;
1-a battery cell;
2-end plate;
21-a first slot;
211-a limiting part;
22-a step groove;
221-a first fixation hole;
23-a first guide groove;
24-a mounting seat;
3-side plate;
31-a first mating part;
32-a second slot;
4-a first fixing member;
41-a second mating part;
42-a first connection;
421-second fixing hole;
43-a body;
20-a plug cavity;
30-a second fixture;
301-a third mating part;
302-a second connection;
40-a separator plate;
50-upper cover;
200-backing plate;
200 a-a second guide groove;
200 b-a second avoidance hole;
300-a guide block;
300 a-a guide;
300 b-avoidance slot;
300 c-a first avoidance hole;
400-a connecting member;
500-box body.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
The utility model provides a device using a battery monomer as a power supply, which comprises a power source, wherein the power source is used for providing driving force for the device; a battery module assembly configured to provide electrical energy to the power source. The device comprises a vehicle or a ship, the vehicle comprises the battery pack and a vehicle body, the battery pack is used as a power source of the vehicle, and the battery pack is arranged in the vehicle body. Wherein, the vehicle is new energy automobile, and it can be pure electric automobile, also can hybrid vehicle or increase form car. The vehicle main part is provided with driving motor, and driving motor is connected with the battery package electricity, is provided the electric energy by the battery package, and driving motor passes through drive mechanism and is connected with the wheel on the vehicle main part to the drive car is marchd.
The battery pack comprises a box body and at least one battery module assembly 100 arranged on the box body, wherein the box body can be made of aluminum, aluminum alloy or other metal materials, and an accommodating cavity is formed in the box body. In one possible design, the box body is a box body structure with an open top, and comprises an upper box cover, the size of the upper box cover is equivalent to that of an opening at the top of the box body, and the upper box cover can be fixed to the opening through fixing pieces such as bolts, so that an accommodating cavity is formed. Meanwhile, in order to improve the sealing performance of the box body, a sealing element can be arranged between the upper box cover and the box body. The battery module assembly 100 that can the holding intracavity of the box of battery package can the holding one or more than two, and battery module assembly 100 can set up side by side along the length direction of battery package in the box, also can set up side by side along the width direction of battery package, and each battery module assembly 100 is fixed with the box.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure; fig. 2 is an exploded schematic view of a battery module according to an embodiment of the present disclosure; fig. 3 is a schematic structural diagram of an end plate 2 in a battery module according to an embodiment of the present disclosure.
As shown in fig. 1 to 3, the present embodiment provides a battery module assembly 100 including a plurality of battery modules 10, wherein each battery module 10 includes: the battery comprises a plurality of battery monomers 1, an end plate 2, a side plate 3 and a first fixing piece 4, wherein the side plate 3 and the end plate 2 are connected end to form a containing cavity for containing the plurality of battery monomers 1; the surface of the end plate 2 facing the side plate 3 is provided with a first slot 21; the side plate 3 is provided with a first inserting part 31, the first inserting part 31 is inserted and matched with the first slot 21, and a second slot 32 is formed on one side of the first inserting part 31, which is far away from the end plate 2; the first fixing member 4 is engaged with the second insertion groove 32 and the end plate 2 to connect the end plate 2 and the side plate 3, respectively.
In the battery module assembly 100 provided by the embodiment of the application, the battery module assembly 100 comprises a plurality of battery modules 10, each battery module 10 comprises a plurality of battery cells 1, an end plate 2, a side plate 3 and a first fixing member 4 for connecting the end plate 2 and the side plate 3, wherein the end plate 2 is provided with a first insertion portion 21, the side plate 3 is provided with a first insertion portion 31, and one side of the first insertion portion 31 departing from the end plate 2 is provided with a second insertion portion 32, when the end plate 2 is assembled with the side plate 3, the first insertion portion 31 of the side plate 3 is firstly inserted and matched with the first insertion portion 21 of the end plate 2, then the first fixing member 4 is matched with the second insertion portion 32, and meanwhile, the first fixing member 4 is also matched with the end plate 2 so as to realize the assembly of the end plate 2 and the side plate 3;
through the cooperation of first grafting portion 31 and first slot 21, the connection of end plate 2 and curb plate 3 has been realized, through setting up first mounting 4, and make first mounting 4 cooperate with second slot 32 and end plate 2 respectively, the degree of freedom of end plate 2 and curb plate 3 has been restricted, relative displacement has effectively been prevented to take place between curb plate 3 and the end plate 2, the hookup location department of having avoided curb plate 3 and end plate 2 produces stress concentration, the stability and the reliability that end plate 2 and curb plate 3 are connected have been improved, thereby the life-span of battery module subassembly 100 has been improved.
Above-mentioned curb plate 3 includes curb plate body and first grafting portion 31, in the embodiment of this application, the both ends of curb plate body all are provided with first grafting portion 31, and the cooperation of pegging graft of first slot 21 that first grafting portion 31 and end plate 2 both sides set up realizes end plate 2 and curb plate 3's end to end connection.
As a possible embodiment, the first fixing piece 4 includes a second insertion portion 41 and a first connection portion 42; the second insertion part 41 is matched with the second slot 32; the first connecting portion 42 is connected to the top of the end plate 2.
The first inserting portion 31 of the first fixing member 4 is engaged with the second inserting groove 32 of the side plate 3, so that the first fixing member 4 is connected to the first inserting portion 31, and then the first connecting portion 42 of the first fixing member 4 is connected to the top of the end plate 2, at this time, relative movement is not generated between the first fixing member 4 and the end plate 2 and between the first fixing member 4 and the side plate 3, so that relative movement is not generated between the end plate 2 and the side plate 3, and the end plate 2 and the side plate 3 are stably connected through the first fixing member 4.
Specifically, one end of the first slot 21 facing the battery pack case 500 is provided with a limiting portion 211, and when the first inserting portion 31 is inserted into the first slot 21, the first inserting portion 31 is inserted into the first slot 21 to interfere with the limiting portion 211, so as to stop the first inserting portion 31, and ensure that the first inserting portion 31 is inserted into the first slot 21 and is matched with the first slot 21 to a preset position.
Fig. 4 is a schematic structural diagram of the first fixing member 4 in the battery module according to the embodiment of the present disclosure, and as shown in fig. 4, specifically, the first fixing member 4 may include a body 43, the body 43 extends along a height direction of the battery module 10, the second insertion portion 41 is formed on a side of the body 43 facing the second insertion groove 32, and the first connection portion 42 is formed on a top end of the body 43 and extends toward the end plate 2.
In the embodiment of the present invention, the body 43 of the first fixing member 4 extends along the height direction of the battery module 10, and the second inserting portion 41 is formed on one side of the body 43 facing the second slot 32, the size of the second inserting portion 41 is the same as the size of the body 43 along the height direction of the battery module 10, or the size of the second inserting portion 41 is slightly smaller than the size of the body 43, that is, along the width direction of the battery module 10, the projection of the body 43 can cover the projection of the second inserting portion 41, when the first fixing member 4 is produced, transported, and assembled for the battery module 10, the body 43 can protect the second inserting portion 41, and the second inserting portion 41 is prevented from being deformed and damaged.
The first connecting portion 42 is formed at the top end of the body 43 and extends toward the end plate 2, in the embodiment, one end of the first connecting portion 42 is connected to the body 43, and the other end extends along the width direction of the battery module 10, that is, the first connecting portion 42 and the body 43 form the first fixing member 4 with an L-shaped structure.
When the first fixing member 4 of the L-shaped structure is connected with the end plate 2, the connection mode can be bonding or screw connection. When the connection mode adopts a threaded connection, the first connection portion 42 is formed with a second fixing hole 421, the top of the end plate 2 is also provided with a first fixing hole 221 at a position corresponding to the first connection portion 42, and the bolt sequentially passes through the second fixing hole 421 and the first fixing hole 221 to connect the first fixing member 4 with the end plate 2.
In order to reduce the space occupied by the connection of the first fixing member 4 and the end plate 2 and improve the integrity of the battery module 10 at the same time, the top of the end plate 2 is formed with a stepped groove 22, the first connecting portion 42 is accommodated in the stepped groove 22, and the first connecting portion 42 is connected to the bottom surface of the stepped groove 22.
Specifically, the bottom surface of the stepped groove 22 is provided with the first fixing hole 221, and the first connection portion 42 and the end plate 2 are connected by the connection member 400 inserted through the first fixing hole 221 and the second fixing hole 421.
The first slot 21 and the second slot 32 may be both dovetail grooves, which can prevent the first inserting portion 31 from being dislocated or separated from the first slot 21 and the second inserting portion 41 from being matched with the second slot 32, thereby improving the stability of the connection between the end plate 2 and the side plate 3.
When battery module 10 used alone, four hookup location departments of end plate 2 and curb plate 3 all are connected through first mounting 4 in battery module 10 to improve battery module 10's structural stability and reliability.
Fig. 5 is a schematic structural view of a battery module assembly provided in an embodiment of the present application, and fig. 6 is an exploded schematic view of the battery module assembly provided in the embodiment of the present application. As shown in fig. 5 to 6, when at least a first battery module 101 and a second battery module 102 arranged in the width direction of the battery module 10 are included among the plurality of battery modules 10 in the battery module assembly 100, the battery module 10 further includes a second fixing member 30 for connecting the first battery module 101 and the second battery module 102.
According to the structure of the end plates 2 and the side plates 3 in the battery module 10 described above, the second insertion grooves 32 are provided in both the first battery module 101 and the second battery module 102. The second slot 32 of the first battery module 101 and the second slot 32 of the second battery module 102 are butted to form the plugging cavity 20, and the battery module assembly 100 further includes a second fixing member 30, and the second fixing member 30 is plugged and matched with the plugging cavity 20.
When the battery module assembly 100 includes the first battery module 101 and the second battery module 102, the first fixing member 4 is not disposed at the joint of the end plate 2 and the side plate 3 of the first battery module 101 adjacent to the second battery module 102, and similarly, the first fixing member 4 is not disposed at the joint of the end plate 2 and the side plate 3 of the second battery module 102 adjacent to the first battery module 101 in the second battery module 102, at this time, the second slot 32 of the first battery module 101 contacts with the second slot 32 of the second battery module 102, the two second slots 32 form the plugging chamber 20, the connection of the first battery module 101 and the second battery module 102 is realized by disposing the second fixing member 30 and matching the second fixing member 30 with the plugging chamber 20, so as to realize the connection of the battery modules 10 arranged in the width direction of the battery module 10, when the number of the battery modules 10 in the battery module assembly 100 is greater than or equal to two, every two adjacent battery modules 10 can be connected by the second fixing member 30.
Fig. 7 is a schematic structural diagram of the second fixing member 30 in the battery module provided in the embodiment of the present application, and as shown in fig. 7, specifically, the second fixing member 30 includes a third plugging portion 301 and a second connection portion 302, the third plugging portion 301 is plugged and matched with the plugging cavity 20, the second connection portion 302 is connected to the top of the third plugging portion 301 facing to the top of the end plate 2, and the second connection portions 302 are respectively connected to the tops of the end plates 2 of two adjacent battery modules 10.
The third plugging portion 301 of the second fixing member 30 is matched with the plugging cavity 20, in order to prevent relative displacement between the first battery module 101 and the second battery module 102, the third plugging portion 301 faces the top of the end plate 2 and is provided with a second connecting portion 302, and the second connecting portion 302 is connected with the top of the end plate 2 of the first battery module 101 and the top of the end plate 2 of the second battery module 102 respectively, so as to improve the connection stability of the first battery module 101 and the second battery module 102.
In the embodiment of the present application, the second connection portion 302 is connected to the top of the end plate 2 of the first battery module 101 and the top of the end plate 2 of the second battery module 102, i.e., the second connection portion 302 and the third insertion portion 301 form the second fixing member 30 with a T-shaped structure.
When the second fixing member 30 of the T-shaped structure is coupled to the end plate 2 of the first battery module 101 and the end plate 2 of the second battery module 102, respectively, the coupling means may be an adhesive or a screw. When the connection mode adopts a threaded connection, the second connection portion 302 is formed with a third fixing hole, a fourth fixing hole is also formed at a position corresponding to the first connection portion 42 at the top of the end plate 2, and a bolt sequentially passes through the third fixing hole and the fourth fixing hole to connect the second fixing member 30 with the end plate 2.
The battery module comprises an upper cover 50, the upper cover 50 and the single battery piece are provided with the isolation plate 40, and in the embodiment of the present application, the upper cover 50 and the isolation plate 40 of the first battery module and the second battery module can be of an integrated structure.
Fig. 8 is a schematic structural diagram of a battery pack provided in an embodiment of the present application, fig. 9 is an exploded schematic structural diagram of the battery pack provided in the embodiment of the present application, fig. 10 is a schematic partial exploded schematic structural diagram of the battery pack provided in the embodiment of the present application, and fig. 11 is a schematic structural diagram of a guide block 300 in the battery pack provided in the embodiment of the present application. As shown in fig. 8 to 11, when at least a first battery module 101 and a third battery module 103 arranged in the height direction of the battery module 10 are included among the plurality of battery modules in the battery module assembly 100, first guide grooves 23 are formed on the outer surfaces of the end plates 2 of the first battery module 101 and the end plates 2 of the third battery module 103 away from the battery cell 1; the first guide groove 23 extends in the height direction of the battery module 10; the battery module assembly 100 further includes a guide block 300; the guide block 300 is inserted into the first guide groove 23.
When the first battery module 101 and the third battery module 103 are disposed along the height direction of the battery module 10, taking the first battery module 101 disposed on the bottom plate of the case 500 of the battery pack and connected to the case as an example, the third battery module 103 is disposed on the side of the first battery module 101 away from the bottom plate of the case, and at this time, the third battery module 103 may be simply referred to as the third battery module 103 disposed above the first battery module 101. In order to prevent the third battery module 103 from deviating when being placed above the first battery module 101, the first guide groove 23 is formed in the end plate 2 of the first battery module 101 and the third battery module 103, when the third battery module 103 is placed above the first battery module 101, the guide block 300 is first inserted into the first guide groove 23, and then the first guide groove 23 of the end plate 2 of the third battery module 103 is matched with the guide block 300, and the third battery module 103 is placed above the first battery module 101 along the direction of the guide block 300, so that the first battery module 101 and the third battery module 103 are placed in alignment.
As one possible embodiment, the battery module assembly 100 includes the gasket 200, and the gasket 200 is located between the end plate 2 of the first battery module 101 and the end plate 2 of the third battery module 103.
Through set up backing plate 200 between first battery module 101 and third battery module 103, separate first battery module 101 and third battery module 103, effectively prevent the extrusion between first battery module 101 and the third battery module 103, improved the life-span of first battery module 101 and third battery module 103.
Specifically, the pad plate 200 is formed with a second guide groove 200a, the second guide groove 200a extends in the height direction of the battery module 10, and the guide block 300 is inserted into the first guide groove 23 and the second guide groove 200a in sequence.
Fig. 10 is a partially exploded view of the battery pack according to the embodiment of the present invention, as shown in fig. 10, after the first battery module 101 is placed on the bottom plate of the case, the guide block 300 is engaged with the first battery module 101 along the first guide groove 23, then the second guide groove 200a of the pad 200 is engaged with the guide block 300, the pad 200 is placed above the first battery module 101, and finally the first guide groove 23 of the third battery module 103 is engaged with the guide block 300, and the third battery module 103 is disposed above the pad 200.
In the embodiment of the present application, the backing plate 200 is only disposed between the end plate 2 of the first battery module 101 and the end plate 2 of the third battery module 103, so that there is a gap between the battery cell 1 of the first battery module 101 and the battery cell 1 of the third battery module 103, when the battery module assembly 100 is in transit, in the use process, the battery module assembly 100 shakes, because there is a gap between the battery cells 1 of the first battery module 101 and the battery cells 1 of the third battery module 103, collision and extrusion between the battery cells 1 of the two sets of battery modules are effectively prevented, the service life of the battery cell 1 in the battery module 10 is prolonged, that is, the service lives of the battery module 10 and a battery pack are prolonged.
As one possible embodiment, guide parts 300a are formed at both sides of the guide block 300 in the width direction of the battery module 10, and the guide parts 300a are engaged with the first guide groove 23 and the second guide groove 200a, respectively.
The guide parts 300a are formed on the two sides of the guide block 300 along the width direction of the currency counting module, and the arrangement of the guide parts 300a is beneficial to the matching of the first guide groove 23 and the second guide groove 200a with the guide block 300, so that the assembly efficiency of the battery module assembly 100 is improved.
As a possible embodiment, the outer surface of the end plate 2 is provided with a mounting seat 24 for mounting the output pole; the guide block 300 is provided with an escape groove 300b for escaping the mount 24, and the escape groove 300b is formed on the side of the guide block 300 facing the end plate 2.
Specifically, the guide block 300 is further provided with a first avoidance hole 300c, the output electrode can be led out through the first avoidance hole 300c, the backing plate 200 is formed with a second avoidance hole 200b, and the second avoidance hole 200b corresponds to the first avoidance hole 300 c.
In the embodiment of the present application, the battery module assembly 100 includes the connection member 400 therein, and the connection member 400 sequentially passes through the battery module assembly 100 located at the upper layer, the gasket 200, and the battery module assembly 100 located at the lower layer, and is connected to the case 500.
Taking the connecting member 400 as an example, the first fixing hole 221 and the second fixing hole 421 are disposed in both the first battery module 101 and the third battery module 103, and meanwhile, a fifth fixing hole is disposed in the pad 200 at a position corresponding to the fixing holes, so that when the first battery module 101 and the third battery module 103 are connected, the bolt sequentially passes through the second fixing hole 421, the first fixing hole 221 of the third battery module 103, the fifth fixing hole of the pad 200, the second fixing hole 421 and the first fixing hole 221 of the first battery module 101, and connects the first battery module 101 and the third battery module 103.
In order to utilize the space in the battery package box as far as, place into more modules, electric core to improve system energy density, in this application embodiment, can set up a plurality of battery modules 10 along battery module 10's width direction, every battery module 10 passes through second mounting 30 to be connected, then, set up battery module 10 in one side that each battery module 10 deviates from battery package box 500, realize the multilayer setting of battery module 10.
As shown in fig. 8, when 4 battery modules are included in the battery module assembly 100, and the middle position of the battery module assembly 100 is connected, taking the connection of the third battery module 103 and the first battery module 101 as an example, bolts sequentially pass through the third fixing hole, the fourth fixing hole of the third battery module 103, the fifth fixing hole of the backing plate 200, the third fixing hole of the first battery module 101, and the fourth fixing hole, thereby connecting the first battery module 101 and the third battery module 103.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (13)
1. A battery module assembly (100) comprising a plurality of battery modules (10), wherein each of the battery modules (10) comprises:
a plurality of battery cells (1);
an end plate (2);
the side plates (3) are connected with the end plates (2) end to form accommodating cavities for accommodating the plurality of battery cells (1);
the surface of the end plate (2) facing the side plate (3) is provided with a first slot (21); the side plate (3) is provided with a first inserting part (31), the first inserting part is inserted and matched with the first inserting groove (21), and a second inserting groove (32) is formed in one side, away from the end plate (2), of the first inserting part (31);
a first fixing piece (4), the first fixing piece (4) respectively with the second slot (32) with the end plate (2) cooperation is in order to connect the end plate (2) with curb plate (3).
2. The battery module assembly (100) according to claim 1, wherein the first fixing member (4) includes a second insertion part (41) and a first connection part (42); the second plug part (41) is matched with the second slot (32); the first connecting portion (42) is connected to the top of the end plate (2).
3. The battery module assembly (100) according to claim 2, wherein the first holder (4) includes a body (43), the body (43) extending in a height direction (Z) of the battery module (10);
the second inserting part (41) is formed on one side of the body (43) facing the second slot (32);
the first connecting portion (42) is formed at a top end of the body (43) and extends toward the end plate (2).
4. The battery module assembly (100) according to claim 3, wherein the top of the end plate (2) is formed with a stepped groove (22);
the first connection portion (42) is received in the stepped groove (22), and the first connection portion (42) is connected to a bottom surface of the stepped groove (22).
5. The battery module assembly (100) according to claim 4, wherein the stepped groove (22) is provided at a bottom surface thereof with a first fixing hole (221);
the first connecting part (42) is provided with a second fixing hole (421);
the first connecting part (42) is connected with the end plate (2) through a connecting part which is arranged in a first fixing hole (221) and a second fixing hole (421) in a penetrating mode.
6. The battery module assembly (100) according to claim 1, wherein the plurality of battery modules (10) includes a first battery module (101) and a second battery module (102), the second battery module (102) being arranged in a width direction (Y) of the first battery module (101);
the second slot (32) of the first battery module (101) and the second slot (32) of the second battery module (102) which are adjacent are butted to form a plugging cavity (20);
the battery module assembly (100) further comprises a second fixing piece (30), and the second fixing piece (30) is in plug-in fit with the plug-in cavity (20).
7. The battery module assembly (100) of claim 6, wherein the second fixing member (30) comprises a third insertion part (301) and a second connection part (302);
the third plugging part (301) is in plugging fit with the plugging cavity (20);
the second connecting parts (302) are connected to the tops of the third inserting-connecting parts (301) facing the end plates (2), and the second connecting parts (302) are respectively connected to the tops of the end plates (2) of two adjacent battery modules (10).
8. The battery module assembly (100) according to claim 1, wherein the plurality of battery modules (10) includes a first battery module (101) and a third battery module (103), the third battery module (103) being arranged in a height direction (Z) of the first battery module (101);
a first guide groove (23) is formed in the outer surface, away from the battery single body (1), of the end plate (2); the first guide groove (23) extends in the height direction of the battery module (10);
the battery module assembly (100) further comprises a guide block (300); the guide block (300) is inserted into the first guide groove (23).
9. The battery module assembly (100) according to claim 8, wherein the battery module assembly (100) includes a gasket (200);
the backing plate (200) is located between the end plate (2) of the first battery module (101) and the end plate (2) of the third battery module (103).
10. The battery module assembly (100) according to claim 9, wherein the gasket (200) is formed with a second guide groove (200a), the second guide groove (200a) extending in a height direction of the battery module (10);
the guide block (300) is sequentially inserted into the first guide groove (23) and the second guide groove (200 a).
11. The battery module assembly (100) according to claim 10, wherein guide portions (300a) are formed at both sides of the guide block (300) in the width direction (Y) of the battery module (10);
the guide portions (300a) are respectively engaged with the first guide groove (23) and the second guide groove (200 a).
12. A battery pack, characterized by comprising the battery module assembly (100) according to any one of claims 1 to 11, and a case (500); the battery module assembly (100) is fixed to the case (500).
13. A device using a battery cell as a power source is characterized by comprising a power source, a power source and a controller, wherein the power source is used for providing driving force for the device; the battery module assembly of any of claims 1-11 configured to provide electrical energy to the power source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643449.4U CN210467931U (en) | 2019-09-29 | 2019-09-29 | Battery module assembly, battery pack and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643449.4U CN210467931U (en) | 2019-09-29 | 2019-09-29 | Battery module assembly, battery pack and device |
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| CN210467931U true CN210467931U (en) | 2020-05-05 |
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| CN201921643449.4U Active CN210467931U (en) | 2019-09-29 | 2019-09-29 | Battery module assembly, battery pack and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259850A (en) * | 2020-09-09 | 2021-01-22 | 安徽江淮汽车集团股份有限公司 | Standardized heating function integrated battery module |
| CN113904051A (en) * | 2020-06-19 | 2022-01-07 | 帝亚一维新能源汽车有限公司 | Portable battery pack fixing structure for battery replacing electric vehicle |
| WO2023134139A1 (en) * | 2022-01-11 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery module, multi-battery module, battery pack and power consuming device |
| WO2023142973A1 (en) * | 2022-01-26 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Enclosure frame, battery, electric apparatus, and method and apparatus for manufacturing enclosure frame |
| WO2024117681A1 (en) * | 2022-11-29 | 2024-06-06 | 주식회사 엘지에너지솔루션 | Battery pack |
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2019
- 2019-09-29 CN CN201921643449.4U patent/CN210467931U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904051A (en) * | 2020-06-19 | 2022-01-07 | 帝亚一维新能源汽车有限公司 | Portable battery pack fixing structure for battery replacing electric vehicle |
| CN113904051B (en) * | 2020-06-19 | 2024-01-09 | 帝亚一维新能源汽车有限公司 | Battery pack fixing structure of portable battery-changing electric vehicle |
| CN112259850A (en) * | 2020-09-09 | 2021-01-22 | 安徽江淮汽车集团股份有限公司 | Standardized heating function integrated battery module |
| WO2023134139A1 (en) * | 2022-01-11 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Battery module, multi-battery module, battery pack and power consuming device |
| WO2023142973A1 (en) * | 2022-01-26 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Enclosure frame, battery, electric apparatus, and method and apparatus for manufacturing enclosure frame |
| WO2024117681A1 (en) * | 2022-11-29 | 2024-06-06 | 주식회사 엘지에너지솔루션 | Battery pack |
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