CN111697174A - Connecting device of battery module - Google Patents
Connecting device of battery module Download PDFInfo
- Publication number
- CN111697174A CN111697174A CN202010177665.5A CN202010177665A CN111697174A CN 111697174 A CN111697174 A CN 111697174A CN 202010177665 A CN202010177665 A CN 202010177665A CN 111697174 A CN111697174 A CN 111697174A
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- Prior art keywords
- force
- battery module
- unit
- battery
- fixing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a connecting device (100) for a battery module (1), comprising: a fixing unit (10) for mechanically fixing the battery module (1) within a battery system (S), and a contact unit (20) for electrically connecting the battery module (1) within the battery system (S). According to the invention, a force deflection device (30) is provided for establishing a mechanically effective connection between the fastening unit (10) and the contact unit (20), in particular for providing a fastening force (F) of the fastening unit (10) to the contact unit (20) and for reducing the electrical resistance at the contact unit (20).
Description
Technical Field
The invention relates to a connecting device for a battery module according to the independent device claim for mechanically fixing the battery module in a battery system or, for example, in a battery housing of the battery system and for electrically connecting the battery module, for example, to a further battery module of the battery system. The invention further relates to a corresponding battery module and to a modularly constructed battery system having at least one corresponding battery module according to the independent device patent claims. The invention further relates to a method for connecting battery modules in a battery system according to the independent method claim.
Background
Connection devices for battery modules in battery systems with bolt contacts and plug contacts for connecting battery module circuits within the battery system are known. Connection devices with bolt contacts do not provide contact protection when connecting battery modules in a battery system. For this reason, the mounting and dismounting of the battery module can be performed only by trained personnel since the module voltage is higher than 60V. Furthermore, the bolts must be tightened with a certain pretension. However, the preload may decrease over time. This in turn may lead to an increase in contact resistance in the connection device. A connection device with plug contacts has a greater contact resistance than a connection device with bolt contacts. This can lead to additional electrical heat losses in the plug contact. In a related situation, this may result in additional heat within the battery module and result in faster aging of the battery module. If such a battery module is used in an electric vehicle, the driving range of the electric vehicle may be reduced as the battery module has a life.
Disclosure of Invention
The present invention is therefore based on the object of providing an improved connecting device for a battery module for mechanically fastening the battery module in a battery system, for example on a battery housing of the battery system, and for electrically connecting it, for example, to a further battery module of the battery system. The invention is based, inter alia, on the object of providing an improved connection device which makes it possible to achieve a stable mechanical fixing and reliable electrical contacting of the battery modules in the battery system. The invention also aims to provide an improved battery module and an improved modularly constructed battery system. The present invention is also based on the object of providing an improved method for connecting (i.e., for fastening and for connecting or electrically contacting) battery modules in a battery system, in order to reliably connect the battery modules mechanically and stably in the battery system.
The object of the invention is achieved by an improved connection device for battery modules according to the independent device claim, in particular by the features of the characterizing part of the independent device claim. The object of the invention is also solved by a corresponding battery module and a modularly constructed battery system with at least one corresponding battery module according to the independent device claims. The object of the invention is also achieved by an improved method for connecting battery modules in a battery system according to the independent method claim, in particular by the features of the characterizing part of the independent method claim. Preferred further developments of the invention are listed in the dependent claims. The features disclosed for the various inventive aspects may be combined with each other in such a way that the disclosure of the various inventive aspects of the invention is always mutually referred to.
According to an aspect for solving the technical problems, the present invention provides a connection device for a battery module, comprising: a fixing unit for mechanically fixing the battery module within a battery system, for example, on a battery case of the battery system; and a contact unit for electrically connecting or electrically contacting the battery module, for example, with a further battery module of the battery system, wherein the contact unit can be arranged on the battery module, in particular, independently or at a spatial distance from the fastening unit. To this end, according to the invention, a force deflection device is provided in order to establish a mechanical operative connection between the fastening unit and the contact unit. The mechanical operative connection between the fixing unit and the contact unit serves in particular to provide a fixing force from the fixing unit to the contact unit in order to reduce the electrical resistance on the contact unit.
The battery module according to the invention may have a plurality of battery cells. The battery module according to the invention can be advantageously used in high voltage applications, preferably in electric vehicles.
The idea of the invention is to provide a hybrid screw/plug/connection device which combines in a synergistic manner the advantages of a screw contact (in a mechanical fastening unit), for example high pretensioning, with the advantages of a plug contact (in an electrical contact unit), for example no danger and easy handling. According to the present invention, the contact units may preferably be independently arranged on the battery module, i.e., spatially spaced from the fixing unit. The battery module is mechanically fixed to a battery case of the battery system by means of a fixing unit. For this purpose, the fixing unit may have a bolt contact. The contact unit serves to provide an electrical connection on the battery module for electrically connecting the battery module within the battery system, in particular for electrically connecting the battery module to a further battery module of the battery system. For this purpose, the contact unit can have plug contacts. According to the invention, the fixing unit can be designed to provide a fixing force which is transmitted to the contact unit by the force deflection means in order to improve the electrical contact there, in particular to mechanically stabilize it, so that the contact resistance within the contact unit is significantly reduced.
Furthermore, the invention can be embodied in the connecting device as follows: the fixing unit has fixing elements, in particular in the form of bolts, preferably in the form of mating bolts, for positive and/or friction-fit fixing to the fixing elements of the battery module. The battery module can thus be simply and conveniently fixed to the battery housing of the battery system, for example by means of bolts. For this purpose, fixing elements in the form of bolts can be passed through corresponding fixing elements (for example in the form of threaded holes) on the module housing of the battery module and fixed with the battery housing of the battery system. It is advantageous here if the fastening element is used only for mechanical fastening and not also for electrical contacting, so that the fitter can safely grasp the fastening element in order to connect the fastening element to the battery housing. The fastening element in the form of a mating bolt can advantageously establish a fastening force on the force-receiving element of the fastening unit (in addition to the pretensioning force on the corresponding fastening element).
Furthermore, the invention can be embodied in the connecting device as follows: the fixing unit has a force-receiving element (in particular in the form of a preferably elastic or extensible spacer) which is movably supported, i.e. can be moved relative to the battery module, and which is preferably pressed open and spread by receiving the fixing element for establishing a fixing force. In this way, a securing force can be generated in a rational manner when securing the securing element, which can be used in an advantageous manner. Preferably, the fixing force can be transferred to the contact unit by means of a force deflection device in order to increase the force with which the elements to be electrically connected are brought into contact with one another. The contact resistance in the contact unit can thus be greatly reduced.
Furthermore, the invention can be embodied in the connecting device as follows: the movable force-receiving element has two first spring elements and/or two second spring elements, by means of which the movable force-receiving element can be supported on the battery module, preferably on both sides. By means of two spring elements each, the movable force-receiving element can be connected on both sides to the force deflection device and/or supported on both sides on the battery module in order to be able to establish a fastening force.
In addition, the invention can be designed in the connecting device as follows: the contact unit has a plug connector. Plug connectors have considerable advantages in terms of safe and simple circuit connection. In this way, the battery module can be easily and conveniently connected, for example, with other battery module circuits within the battery system. This also makes it possible to reversibly connect the battery system within the battery system, so that the battery module can be easily and conveniently replaced. This also makes it possible to combine a flexibly assemblable battery system with a variable number of battery modules.
In addition, the invention can be designed in the connecting device as follows: the contact unit, in particular the plug connector, has a plug pin and/or a plug sleeve in order to make an electrical connection, in particular between the battery module and a further battery module of the battery system. It is conceivable within the scope of the invention that elements of the plug connector, i.e. the plug pins or the plug sleeves, can be electrically connected to the module terminals of the battery modules, and that further complementary elements of the plug connector can be connected with cables, which are led to further battery modules of the battery system. The battery module can be easily, conveniently and safely wired within the battery system.
Furthermore, the invention can be embodied in the connecting device as follows: the contact unit, in particular the plug connector, has at least one spring-elastic clamping element, for example as part of a sleeve, in particular in the form of a spring-elastic clip and preferably has one continuous or several webs, for clamping the plug pin in the plug sleeve, preferably without play. The spring-elastic clamping elements can provide an elastic force by means of which the elements to be electrically connected are in contact with one another in the contact unit. The plug pin can be clamped in the plug sleeve on both sides by means of a clip. A clip with multiple tabs allows the clip to rest evenly on the latch.
Furthermore, the invention can be embodied in the connecting device as follows: the force deflection device has at least one force redirection element, in particular in the form of a pincer. Especially force redirection elements in the form of pliers can even utilize the lever principle to increase the fixing force.
Furthermore, the invention can be embodied in the connecting device as follows: the force deflection device, in particular the force deflection element, has two, preferably two-sided levers and joints. Thus, the principle of leverage can be implemented within the force deflection device such that the fixing force is increased in the transmission from the fixing unit to the contact unit.
In addition, the invention can be designed in the connecting device as follows: the force deflection device, in particular the force deflection element, has a joint, at which the force deflection device can be fastened to the battery module. The force deflection device may be supported on the battery module by the joint so as to stably transmit the fixing force from the fixing unit to the contact unit.
Furthermore, the invention can be embodied in the connecting device as follows: the force deflection device, in particular the force deflection element, has two handles, at which the force deflection device is operatively connected to the fixing unit for receiving a fixing force of a movable force-receiving element of the fixing unit. The connection to the movable force-receiving element can preferably be established on both sides by means of two handles in order to grip the stationary unit.
Furthermore, the invention can be embodied in the connecting device as follows: each of the two handles is engaged between the first spring element and the second spring element of the movable force receiving member of the fixed unit, respectively, so as to obtain a fixing force of the movable force receiving member of the fixed unit. A stable operation of the two handles can be achieved by the connection between the two spring elements.
Furthermore, the invention can be embodied in the connecting device as follows: the force deflection device, in particular the force deflection element, has two clamps, at which the force deflection device is operatively connected to the contact unit for transmitting a fastening force to a side of the contact unit, in particular the plug connector. The contact unit can be clamped laterally by means of two clamps in order to increase the pretensioning force in the contact unit, in particular the force with which the components to be connected are electrically contacted in the contact unit. This makes it possible to use a plug connector within the contact unit, which plug connector can be handled simply and safely and, due to the additional fastening force, achieves a reliable electrical contacting of the electrical components to be connected.
According to a further aspect of the invention, the object is achieved by a battery module for a modularly constructed battery system, which is provided with a connecting device, which can be designed as described above, which is designed with corresponding fixing elements for form-fitting and/or friction-fitting fixing with fixing units of the connecting device, for mechanically fixing the battery module on a battery housing of the battery system, and with terminals for electrical contact with contact units of the connecting device and for connecting the battery module with further battery modules of the battery system. By means of the battery module according to the invention, the same advantages as described above in connection with the connecting device according to the invention are achieved. These advantages are incorporated herein in their entirety.
According to a further aspect of the invention, the object is achieved by a modular battery system having at least one battery module, which can be designed as described above. By means of the battery system according to the invention, the same advantages as described above in connection with the connecting device according to the invention are achieved. These advantages are incorporated herein in their entirety.
According to a further aspect of the invention, the technical problem is solved by a method for connecting a battery module into a battery system by means of (or through) a connecting device, which is designed as described above, comprising: a fixing unit for mechanically fixing the battery module in the battery system, for example on a battery housing of the battery system, and a contact unit for electrically connecting the battery module in the battery system, for example with other battery module circuits of the battery system, the contact unit being arranged on the battery module, in particular separately from the fixing unit. To this end, it is possible according to the invention that the mechanical force deflection between the fastening unit and the contact unit is carried out by means of (or by) a force deflection device, in particular from the point of providing the fastening unit with a fastening force to the contact unit and reducing the electrical resistance on the contact unit. The same advantages as described above in connection with the connecting device according to the invention are achieved by means of the method according to the invention. These advantages are incorporated herein in their entirety.
Within the scope of the invention, the method can be advantageously carried out by means of a connecting device.
Drawings
Further measures to improve the invention are shown in more detail below by describing preferred embodiments of the invention with reference to the drawings. The features mentioned in the claims and in the description can, respectively, be embodied in the invention individually or in any combination. It should be noted that these drawings are merely of descriptive nature and are not to be considered as limiting the invention in any way. In the drawings:
fig. 1 shows the electrical resistance in a known connection device as a function of the force with which the components to be electrically connected are brought into contact with one another,
figure 2 shows a schematic view of a connection device in the sense of the invention in a top view of a battery module,
figure 3 shows a schematic view of a fixing element in the sense of the invention,
figure 4 shows a schematic view of a contact unit in the sense of the present invention,
fig. 5 shows a schematic view of a connection device according to the invention in a perspective view of a battery module.
Detailed Description
The same features of the invention are always provided with the same reference numerals in the different figures, so that they are usually described only once.
Fig. 1 illustrates the problem of a connection device for battery modules in a known battery system having bolt contacts 100 and plug contacts 100 for mechanically fixing and electrically connecting the battery modules in the battery system. The connection devices with bolt contacts 100, although having a relatively high pretensioning force F and a relatively low resistance R, do not provide any contact protection during the operation of bolt contacts 100. The connection devices with the plug contacts 100 can be operated relatively safely, but their electrical resistance R is significantly greater than the connection devices with the bolt contacts 100.
Fig. 2 to 5 show a connection device 100 of a battery module 1 according to the invention, which overcomes the above-mentioned disadvantages at least in part and advantageously combines the advantages of a bolt contact 100 and a plug contact 100. The connection device 100 according to the invention has the following units: the fixing unit 10 of the battery module 1 for mechanically fixing the battery module 1 within the battery system S is, for example, fixed on a battery case of the battery system S (not shown for the sake of simplicity), and the contact unit 20 for electrically connecting or contacting the battery module 1 is, for example, connected or contacted with another battery module of the battery system. Within the scope of the invention, separate contact units 20 are used, which can be arranged on the battery module 1 at a spatial distance from the fixing unit 10 (see fig. 2 and 5).
In the connection device 100, the invention provides a force deflection device 30 to establish a mechanical operative connection between the fixation unit 10 and the contact unit 20, as is indicated in fig. 2 by means of an arrow F. The force deflection device 30 acquires a fixing force F on the fixing unit 10 and transmits this fixing force F (strengthened if necessary) to the contact unit 20 in order to increase the fixing force F (the electrically connected components 21, 23 are brought into contact with each other by the fixing force F), thereby reducing the electrical resistance at the contact unit 20.
The battery module 1 according to the invention has a plurality of battery cells and is used in high-voltage applications (e.g. in electric vehicles). The battery module 1 according to the invention can be built within the framework of a modularly constructed battery system S, which can have further battery modules as the battery module 1 according to the invention.
The battery module 1 is mechanically fixed to the battery housing of the battery system S by means of the fixing unit 10. For this purpose, the fixing unit 10 may have a bolt contact. Electrical connections are provided on the battery module 1 by means of the contact unit 20 in order to electrically connect the battery module 1 within the battery system S, in particular in order to electrically connect the battery module 1 with another battery module of the battery system S. For this purpose, the contact unit 20 may have a plug contact, as is schematically shown in fig. 4.
Referring to fig. 2 and 3, the fixing unit 10 has fixing elements 11, preferably in the form of mating bolts, for positive and/or friction-fit fixing on corresponding fixing elements 101 (for example in the form of threaded holes) of the battery module 1 (see fig. 2 and 5). The battery module 1 can be bolted to a housing of a battery system S, not shown in detail, by means of mating bolts which pass through the corresponding fixing elements 101.
As shown in fig. 2, the fastening unit 10 has a force-receiving element 12 (in particular in the form of a preferably elastic or extensible washer) which is movably supported, i.e. can be moved relative to the battery module 1, and which is preferably pressed open and spread by receiving the fastening element 11 for establishing a fastening force F. Preferably, the fixing force F may be transmitted to the contact unit 20 via the force deflection device 30.
As is also shown in fig. 2, the movable force-receiving element 12 has two first spring elements F1 and two second spring elements F2, by means of which the movable force-receiving element 12 is connected to the force deflection means 30 and can be supported on the battery module 1, preferably on both sides.
The movable force-receiving element 12 is arranged around the corresponding fixed element 101, for example around a threaded hole. The movable force-receiving element 12 is connected to the two handles 33 of the force-deflecting means 30 by means of two first spring elements F1. The two handles 33 of the force deflection means 30 are supported on the battery module 1, for example on the module housing, by means of two second spring elements F2. For this purpose, a support 102 can be provided on the battery module 1, for example on the module housing.
As shown in fig. 3, a mating bolt is preferably used as the fixing member 11. By inserting a mating bolt into the movable force-receiving element 12 and into the threaded bore, a securing force F is generated on the movable force-receiving element 12, which forces the movable force-receiving element 12 apart and in tension. Thereby, the associated handle 33 of the force deflection means 30 is pressed outwards at the same time.
The other end of the handle 33 is connected to the contact unit 20, for example by two clamps 35. The two clamps 35 press against the side surfaces 24 of the contact unit 20 and introduce a fixing force F into the contact unit 20 there. For this purpose, two pressure plates 36 can be provided on the two clamps 35 of the force deflection device 30 in order to be able to introduce the force uniformly into the contact unit 20. The side surfaces 24 of the contact unit 20 are pressed together, so that the contact force between the plug sleeve 22, in particular the spring-elastic clamping element 23 in the plug sleeve 22, and the plug pin 21 increases.
In other words, the contact unit 20 may have a plug connector, as shown in fig. 4. This has the advantage that the plug connector can be designed with a low contact force, whereby the price of the connecting device 100 is significantly reduced. The force deflection means 30 also significantly reduces the contact resistance within the connector.
As described above, the contact unit 20, in particular the plug connector, can have a plug pin 21 and/or a plug sleeve 22 for establishing an electrical contact, in particular between the battery module 1 and a further battery module of the battery system S. It is conceivable within the scope of the invention that elements of the plug connector, the plug pins 21 or the plug sleeves 22, can be electrically connected to the module terminals T1, T2 of the battery module 1, wherein further complementary elements of the plug connector can be connected to cables K, which can be led to further battery modules of the battery system S.
As fig. 4 also shows, the contact unit 20, in particular the plug connector, can have at least one spring-elastic clamping element 23 (in particular in the form of a spring-elastic clip and preferably having one or more lamellae) around the plug pin (for example in the plug sleeve 22) for clamping the plug pin 21 in the plug sleeve 22, preferably without play.
Fig. 2 further shows that the force deflection device 30 can have at least one force deflection element 31, in particular in the form of a forceps. Furthermore, the force deflection element 31, in particular a forceps, can have two, preferably two-sided levers 32 and joints 34. The lever 32 may be used to increase the securing force F. The knuckle 34 may be used to support the force deflection device 30 on the battery module 1.
A correspondingly constructed battery module 1, a modularly constructed battery system S having at least one such battery module 1 and a corresponding method for connecting such battery modules 1 in a battery system S represent further subjects of the invention.
The foregoing description of the drawings describes the invention by way of example only. The individual features of the embodiments can, of course, be combined with one another as long as they are technically reasonable without departing from the scope of the invention.
List of reference numerals
1 Battery module
10 fixing unit
11 fixing element
12 force-bearing element
20 contact unit
21 bolt
22 socket sleeve
23 clamping element
24 side surface
30-force deflection device
31-force steering element
32 lever
33 handle
34 joint
35 Clamp
36 pressing plate
100 connecting device
101 corresponding to the fixed element
102 support
F fixing force
F2 second spring element
F1 first spring element
S battery system
T1 module terminal
T2 module terminal
100 bolt contact
100 star plug contact
F pre-tightening force
R resistance
Claims (15)
1. A connecting device (100) for a battery module (1), having:
a fixing unit (10) for mechanically fixing the battery module (1) within a battery system (S), and
a contact unit (20) for electrically connecting the battery module (1) within the battery system (S),
it is characterized in that the preparation method is characterized in that,
a force deflection device (30) is provided for establishing a mechanical operative connection between the fastening unit (10) and the contact unit (20).
2. Connection device (100) according to claim 1,
it is characterized in that the preparation method is characterized in that,
the fastening unit (10) has fastening elements (11) for fastening to corresponding fastening elements (101) of the battery module (1) in a form-fitting and/or friction-fitting manner.
3. Connecting device (100) according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the stationary unit (10) has a movable force-receiving element (12).
4. Connection device (100) according to claim 3,
it is characterized in that the preparation method is characterized in that,
the movable force-receiving element (12) has two first spring elements (F1) and/or two second spring elements (F2), and the movable force-receiving element (12) can be supported on the battery module (1) by means of the two first spring elements (F1) and/or the two second spring elements (F2).
5. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the contact unit (20) has a plug connector.
6. Connection device (100) according to claim 5,
it is characterized in that the preparation method is characterized in that,
the contact unit (20) has a plug pin (21) and/or a plug sleeve (22).
7. Connecting device (100) according to claim 6,
it is characterized in that the preparation method is characterized in that,
the contact unit (20) has at least one spring-elastic clamping element (23) for clamping the plug pin (21) in the plug sleeve (22).
8. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the force deflection device (30) has at least one force transmission element (31).
9. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the force deflection device (30) has two levers (32) and a joint (34).
10. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the force deflection device (30) has a joint (34), wherein the force deflection device (30) can be fastened to the battery module (1) at the joint (34).
11. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the force deflection device (30) has two handles (33), at which the force deflection device (30) is operatively connected to the fastening unit (10) for receiving a fastening force (F) of a movable force-receiving element (12) of the fastening unit (10).
12. Connecting device (100) according to claim 11,
it is characterized in that the preparation method is characterized in that,
each of the two handles (33) is engaged between a first spring element (F1) and a second spring element (F2) of the movable force-receiving element (12) of the stationary unit (10), respectively, for acquiring a fixing force (F) of the movable force-receiving element (12) of the stationary unit (10).
13. Connecting device (100) according to one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the force deflection device (30) has two clamps (35) and is operatively connected to the contact unit (20) at the two clamps (35) for introducing a fastening force (F) into the lateral surface (24) of the contact unit (20).
14. A battery module (1) for a modularly constructed battery system, having:
connecting device (100) according to one of the preceding claims,
a counter-fixing element (101) for fixing in a form-and/or friction-fitting manner with a fixing unit (10) of the connecting device (100) for mechanically fixing the battery module (1) on a battery housing of a battery system (S),
terminals (T1, T2) for electrically contacting the contact unit (20) of the connection device (100) and for electrically connecting the battery module (1) with other battery modules of the battery system (S).
15. Method for connecting battery modules in a battery system (S) by means of a connecting device (100), the connecting device (100) having:
a fixing unit (10) for mechanically fixing the battery module (1) within the battery system (S), and
a contact unit (20) for electrically connecting the battery module (1) in a battery system (S),
it is characterized in that the preparation method is characterized in that,
a mechanical force deflection is carried out between the fastening unit (10) and the contact unit (20) by means of a force deflection device (30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019106506.2 | 2019-03-14 | ||
| DE102019106506 | 2019-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111697174A true CN111697174A (en) | 2020-09-22 |
| CN111697174B CN111697174B (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010177665.5A Active CN111697174B (en) | 2019-03-14 | 2020-03-13 | Connecting device of battery module |
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| Country | Link |
|---|---|
| CN (1) | CN111697174B (en) |
| DE (1) | DE102020106863A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111697174B (en) | 2023-02-03 |
| DE102020106863A1 (en) | 2020-09-17 |
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