CN209357818U

CN209357818U - Battery modules

Info

Publication number: CN209357818U
Application number: CN201920240557.0U
Authority: CN
Inventors: 陈玉超
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2019-09-06
Anticipated expiration: 2029-02-26

Abstract

The utility model relates to battery technology field more particularly to a kind of battery modules, which includes shell；Multiple batteries overlie one another and are arranged and are placed in shell；Multiple sampling units are arranged to acquire the job information of each battery；Busbar connector, is electrically connected adjacent battery, and busbar connector is arranged along the stacking direction of battery；Busbar connector is equipped at least one groove, wherein at least partly sampling unit is fixed in corresponding groove.The sampling unit of battery modules provided by the utility model can be securely attached to together with busbar connector, and realization can resist more violent vibration or impact.

Description

Battery modules

Technical field

The utility model relates to battery technology field more particularly to a kind of battery modules.

Background technique

In recent years, the appearance of new-energy automobile gives a pushing effect on social development and environmental protection, Power battery rechargeable battery that mould group is the power resources of new-energy automobile as a kind of, wide in new-energy automobile field General application.Power battery is two neighboring or more in groups in use, multiple batteries for stacking setting are packed to form battery modules A power battery is connected by busbar connector (Busbar), to ensure the normal work of power battery.It wherein, is real-time monitoring power The working condition of battery is fixed the terminal of sampling harness by way of being bonded or welding on busbar connector.

Although it is fixed on the busbar to can be realized the terminal that will sample harness in the prior art, sampling terminal is logical Often be plane or spherical shape, plane and sphere-contact point are less, and then can accommodate sizing material or solder is less, cause to bond or The fixing intensity of welding is lower.When being vibrated or impacting, sampling terminal and busbar connector are easy to happen removing, fall off, are broken The problems such as.It is generally solved the above problems at present by using increasing glue dosage, solder dosage or increasing welder power, still, It still remains following problems: (1) only increasing glue or solder dosage, filler, which can overflow, can not effectively increase bonding or welding is strong Degree；(2) increase welder power, temperature sampling terminal may be made to damage because of high temperature.

Utility model content

The purpose of this utility model is to provide a kind of battery modules, to alleviate adopting in battery modules in the prior art Sample unit can not be firmly fixed to the technical problem on busbar connector.

The utility model provides a kind of battery modules, including

Shell；

Multiple batteries overlie one another and are arranged and are placed in the shell；

Multiple sampling units are arranged to acquire the job information of each battery；

Busbar connector, is electrically connected the adjacent battery, and the busbar connector is arranged along the stacking direction of the battery；

The busbar connector is equipped at least one groove, wherein at least partly described sampling unit is fixed on corresponding institute It states in groove.

Further, there are gap between the sampling unit, the gap is set for the slot bottom of the groove and cell wall It is set to the connection material accommodated for fixing the sampling unit, at least partly described sampling unit is connected by the connection material It connects in the gap of the corresponding groove.

Further, the battery modules further include connector；

The sampling unit includes:

Sampling terminal；

Connection wiring harness, one end of the connection wiring harness are electrically connected with the sampling terminal, the other end and connector electricity Connection；

The part connection wiring harness and/or at least partly described sampling terminal are connected to described recessed by the fixed material In slot.

Further, the cell wall of the groove is equipped with limited mouth, and the part that the connection wiring harness is contacted with the groove is logical The connection material is crossed to be arranged in the limited mouth；

The sampling terminal is fixed in the vallecular cavity of the groove by the connection material.

Further, the size of the sampling terminal along the y axis is greater than the groove depth of the groove.

Further, the groove depth of the groove is 0.5mm-1mm.

Further, the busbar connector includes:

Bolster；

Cylinder manifold, the two sides of the bolster are connected to along the stacking direction of the battery, and the groove is arranged described On cylinder manifold.

Further, the cylinder manifold includes:

Plate ontology, is connected to the two sides of the bolster along the stacking direction of the battery, the plate ontology and right with it The battery electrical connection answered；

Collection plate is extended outward to form by the plate ontology close to the end face of the sampling terminal, the table of the collection plate Face is recessed to form the groove.

Further, the bolster and described this body by integral forming of plate.

Further, the junction of the plate ontology and the bolster is equipped with arc-shaped notch.

The utility model has the following beneficial effects:

The utility model provides a kind of battery modules, the battery modules include shell, the multiple batteries being placed in shell, Multiple sampling units and the busbar connector for being electrically connected adjacent battery, wherein multiple batteries, which overlie one another, to be arranged and be placed in shell Interior, sampling unit is arranged to acquire the job information of each battery, and busbar connector is arranged along the stacking direction of battery, specifically, converging Stream row is equipped at least one groove, and further, at least partly sampling unit is fixed in corresponding groove.It is single to carry out sampling When the assembly process of member, due to being at least partly fixed in corresponding groove for sampling unit, i.e., groove provides sampling The accommodating space of unit fixed part, therefore, groove improve the fixed part of sampling unit and the contact area of busbar connector, into And improve the bonding strength of sampling unit and busbar connector；Meanwhile in the assembly process for carrying out sampling unit, connected when passing through When material progress sampling unit is fixed, groove can also ensure that connection material fully enters in groove, ensure that connection material is complete Portion has carried out effective fixation of sampling unit, and this design structure improves the bonding strength of sampling unit and busbar connector, improves Connection reliability between busbar connector and sampling unit, realization can resist more violent vibration or impact.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of battery modules provided by the embodiment of the utility model；

Fig. 2 is the enlarged drawing in Fig. 1 at A；

Fig. 3 is structural schematic diagram of the groove in Fig. 2 equipped with limited mouth；

Fig. 4 is the cross-sectional view in the direction B-B in Fig. 2.

Icon:

1- shell；

2- battery；

3- sampling unit；

31- sampling terminal；

32- connection wiring harness；

4- busbar connector；

41- bolster；

42- cylinder manifold；

421- plate ontology；

422- collection plate；

43- groove；

431- slot bottom；

432- cell wall；

433 limited mouths；

5 arc-shaped notch.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage Solution is limitations of the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Specifically, battery modules include shell 1, multiple batteries 2 for being placed in the shell 1, wherein each battery 2 It include top cover, battery case, electrode assembly and the electrolyte being poured into battery case.Electrode assembly is by positive plate, cathode Piece and isolation film wind together and are formed.Isolation film is the insulator between positive plate, negative electrode tab.Alternatively, electric Pole component can be stacked and shape by being formed into the multiple positive plates, multiple isolation films and multiple negative electrode tabs of plate or sheet At.Top cover is equipped with positive terminal and negative terminal, and positive terminal is electrically connected to positive plate, and negative terminal is electrically connected to cathode Piece.Busbar connector 4 is electrically connected with the positive terminal of adjacent cell 2 or negative terminal.Shell 1 is configured to cubic shaped, with Its internal cavity for forming receiving battery 2, and shell 1 has opening in side, the connects with the internal cavities with shell.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in the present embodiment, which further includes multiple sampling units 3 and electricity Connect the busbar connector 4 of adjacent cell 2, wherein sampling unit 3 is arranged to acquire the job information of each battery 2,4 edge of busbar connector The stacking direction of battery 2 is arranged, and further at least partly samples specifically, busbar connector 4 is equipped at least one groove 43 Unit 3 is fixed in corresponding groove 43.It is at least partly solid due to sampling unit 3 when carrying out the assembly process of sampling unit 3 It is scheduled in corresponding groove 43, i.e., groove 43 provides the accommodating space of 3 fixed part of sampling unit, and therefore, groove 43 improves The fixed part of sampling unit 3 and the contact area of busbar connector 4, and then improve sampling unit 3 and the connection of busbar connector 4 is strong Degree；Meanwhile when fixed by connection material progress sampling unit 3, in the assembly process for carrying out sampling unit 3, groove 43 It can also ensure that connection material fully enters in groove 43, ensure that connection material has all carried out the effective solid of sampling unit 3 Fixed, this design structure improves the bonding strength of sampling unit 3 Yu busbar connector 4, improves between busbar connector 4 and sampling unit 3 Connection reliability, realization can resist more violent vibration or impact.

Herein it should be noted that in the present embodiment, the job information of battery can be the letter such as the voltage of battery, temperature Breath.

In the present embodiment, connection material can connect material for glue or solder etc., can choose according to the actual situation The type for connecting material, is not specifically limited herein.

As shown in Figure 4, wherein the cell wall 432 of groove 43 can fit together with the fixed part of sampling unit 3, In the present embodiment, for that can ensure the fastness that sampling unit 3 is connect with groove 43, meanwhile, ensure that connection material can be whole It is effectively connected, there are gaps between sampling unit 3 for the slot bottom 431 and cell wall 432 of groove 43, and gap setting is at accommodating For the connection material of fixed sample unit 3, at least partly sampling unit 3 is connected to corresponding groove 43 by connecting material In gap.

As shown in Fig. 2, sampling unit 3 includes sampling specifically, in the present embodiment, battery modules further include connector Terminal 31 and connection wiring harness 32, wherein one end of connection wiring harness 32 is electrically connected with sampling terminal 31, the other end of connection wiring harness 32 It is electrically connected with connector, also, part connection wiring harness 32 and/or sampling terminal 31 are connected at least partially by connection material In groove 43.In practical set, according to the actual application environment situation of battery modules, it can choose sampling terminal 31 and connect It one in wiring beam 32 or is placed in groove 43 simultaneously, wherein in the present embodiment, in order to preferably ensure sampling unit 3 with the bonding strength of busbar connector 4, select connection wiring harness 32 and sampling terminal 31 to be respectively positioned in groove 43.

As shown in Figure 2, wherein sampling terminal 31 includes the temperature sampling terminal for acquiring 2 actual work temperature of battery 31 and the voltage sample terminal 31 for acquiring 2 real work voltage of battery, the transmitting of the collected relevant information of sampling terminal 31 To the information acquisition device of battery modules, with the working condition of real-time monitoring battery modules.

Specifically, busbar connector 4 includes bolster 41 and cylinder manifold 42, wherein be connected to buffering along the stacking direction of battery 2 The two sides of part 41, groove 43 are arranged on cylinder manifold 42.In the present embodiment, bolster 41 can slow down battery modules and shake When dynamic, the shaking amplitude of cylinder manifold 42, and then the whole shaking degree of sampling unit 3 is reduced, ensure sampling unit 3 and busbar connector The fastness connected between 4.

Please continue to refer to Fig. 2, specifically, cylinder manifold 42 includes plate ontology 421 and collection plate 422, wherein plate ontology 421 The two sides of bolster 41, plate ontology 421 and the electrical connection of corresponding battery 2 are connected to along the stacking direction of battery 2, in this reality It applies in example, plate ontology 421 and bolster 41 can be linked together by the various ways such as being clamped, welding, for that can ensure plate The structural strength that ontology 421 is connect with bolster 41, plate ontology 421 and bolster 41 are integrally formed.

Wherein, can be arranged indirectly between plate ontology 421 if multiple springs arranged side by side are to form bolster 41, in this implementation In example, while can ensure reduces by 42 vibration amplitude of cylinder manifold, additionally it is possible to ensure the structural strength of entire busbar connector 4, it is excellent Selection of land, bolster 41 are integrally formed in arch bridge shape and with plate ontology 421.

As shown in Figures 2 and 3, groove 43 can be arranged directly on plate ontology 421, when groove 43 is formed by Sheet Metal Forming Technology When, the surface of plate ontology 421 towards battery will form the convex portion of groove 43, and then lead to the electricity of plate ontology 421 Yu top cover Appearance gap between extreme son, reduces the laminating degree of plate ontology 421 and electrode terminal, to influence busbar connector 4 and electrode The degree that is connected firmly between terminal, to prevent above-mentioned phenomenon, in the present embodiment, plate ontology 421 is close to sampling terminal 31 End face extends outward to form collection plate 422, also, the surface indentation of collection plate 422 forms groove 43, by the way that groove 43 to be arranged On collection plate 422, to ensure the bonding strength between plate ontology 421 and the electrode terminal of top cover.

As shown in figure 4, it is further, when part connection wiring harness 32 is placed in groove 43, to can be avoided battery mould During group is shaken, the edge of part and collection plate 422 that connection wiring harness 32 is mounted on collection plate 422 rubs, and causes The cell wall 432 of the case where connection wiring harness 32 damages, groove 43 is equipped with limited mouth 433, and connection wiring harness 32 is contacted with groove 43 Part by connection material be arranged in limited mouth 433, further, in order to ensure the connection of sampling unit 3 Yu busbar connector 4 Stability, whole-sample terminal 31 are arranged in the vallecular cavity of groove 43 by connecting material.

As shown in Figure 4, wherein the groove depth of groove 43 can be greater than the height of sampling terminal 31, ensure sampling terminal 31 Do not increase the thickness of cylinder manifold 42 while capable of being securely attached on the collection plate 422 of cylinder manifold 42, in the present embodiment, Size of the sampling terminal 31 along the y axis (perpendicular to the direction of the stacking of battery 2) is greater than the groove depth size of groove 43, it is preferable that The groove depth size H of groove 43 is 0.5mm-1mm, wherein sampling terminal 31 according to the size of battery modules and the difference of model, The size of sampling terminal 31 also can be different, and when sampling terminal 31 is minimum model, the size of groove depth H can be 0.5mm, into one Step, when sampling terminal 31 is maximum model, the size of groove depth H can be 1mm, and then meet the fixation to sampling terminal 31 And intensity requirement.

As shown in Figures 2 and 3, further, to improve the bonding strength between bolster 41 and plate ontology 421, at this In embodiment, the junction of the plate ontology 421 and the bolster 41 is equipped with arc-shaped notch 5, when battery modules are vibrated Or when impact, plate ontology 421 and the stress of the junction of bolster 41 is enabled to uniformly to evacuate along the normal direction of circular arc, it improves The structural strength of busbar connector 4.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims

1. a kind of battery modules characterized by comprising

Shell (1)；

Multiple batteries (2) overlie one another and are arranged and are placed in the shell (1)；

Multiple sampling units (3) are arranged to acquire the job information of each battery (2)；

Busbar connector (4), is electrically connected the adjacent battery (2), and the busbar connector (4) sets along the stacking direction of the battery (2) It sets；

The busbar connector (4) is equipped at least one groove (43), wherein at least partly described sampling unit (3) is fixed on pair In the groove (43) answered.

2. battery modules according to claim 1, which is characterized in that the slot bottom (431) and cell wall of the groove (43) (432) there are gaps between the sampling unit (3), and the gap setting is at accommodating for fixing the sampling unit (3) connection material, at least partly described sampling unit (3) are connected to the corresponding groove (43) by the connection material Gap in.

3. battery modules according to claim 2, which is characterized in that the battery modules further include connector；

The sampling unit (3) includes:

Sampling terminal (31)；

One end of connection wiring harness (32), the connection wiring harness (32) is electrically connected with the sampling terminal (31), the other end with it is described Connector electrical connection；

The part connection wiring harness (32) and/or at least partly described sampling terminal (31) are fixed on institute by the connection material It states in groove (43).

4. battery modules according to claim 3, which is characterized in that the cell wall (432) of the groove (43) is equipped with limit Mouth (433), the part that the connection wiring harness (32) contacts with the groove (43) are arranged by the connection material in the limit In position mouth (433)；

The sampling terminal (31) is fixed in the vallecular cavity of the groove (43) by the connection material.

5. battery modules according to claim 3, which is characterized in that the size of the sampling terminal (31) along the y axis Greater than the groove depth of the groove (43).

6. battery modules according to claim 5, which is characterized in that the groove depth of the groove (43) is 0.5mm-1mm.

7. battery modules according to claim 3, which is characterized in that the busbar connector (4) includes:

Bolster (41)；

Cylinder manifold (42) is connected to the two sides of the bolster (41), the groove (43) along the stacking direction of the battery (2) It is arranged on the cylinder manifold (42).

8. battery modules according to claim 7, which is characterized in that the cylinder manifold (42) includes:

Plate ontology (421) is connected to the two sides of the bolster (41), the plate ontology along the stacking direction of the battery (2) (421) it is electrically connected with the corresponding battery (2)；

Collection plate (422) is extended outward to form by the plate ontology (421) close to the end face of the sampling terminal (31), described The surface indentation of collection plate (422) forms the groove (43).

9. battery modules according to claim 8, which is characterized in that the bolster (41) and the plate ontology (421) It is integrally formed.

10. battery modules according to claim 8, which is characterized in that the plate ontology (421) and the bolster (41) Junction be equipped with arc-shaped notch (5).