WO2019081599A1 - BATTERY ASSEMBLY AND TELEMATICS UNIT WITH BATTERY ASSEMBLY - Google Patents

Abstract

The invention relates to a battery assembly (1) comprising at least a first battery cell (2), a second battery cell (3), a printed circuit board (7) and a housing (5), the battery cells (2, 3) being elongate, in particular cylindrical , wherein in the housing (5) the battery cells (2, 3) and the circuit board (7) are accommodated, wherein the battery cells (2, 3) are arranged such that a central longitudinal axis (2a) of the first battery cell (2 ) and a central longitudinal axis (3a) of the second battery cell (3) parallel to each other and the circuit board (7) between the first battery cell (2) and the second battery cell (3) is arranged. Here, a first plane (E30), which is formed by a broad side (4) of the printed circuit board (7), arranged at an angle to a second plane (E23), wherein the central longitudinal axes (2a, 3a) of the battery cells (2, 3) the span second level (E23).

Description

 "Battery Assembly and Telematics Unit"

The invention relates to a battery assembly and a

Telematics unit according to the preamble of claim 1 or 11.

From CN 203 604 463 U a battery assembly is known, which at least a first battery cell, a second

Battery cell, a printed circuit board and a housing, wherein the battery cells elongate, in particular

cylindrical, are formed, wherein in the housing, the battery cells and the circuit board are accommodated, wherein the battery cells are arranged such that a

Central longitudinal axis of the first battery cell and a

Center longitudinal axis of the second battery cell parallel to each other and the circuit board between the first

Battery cell and the second battery cell is arranged.

It is an object of the invention to provide a battery assembly or a telematics unit with a battery assembly, which has a particularly compact structure. In particular, it is also an object of the invention to provide a battery assembly or a telematics unit with a battery assembly

to propose, in which a reliable

Temperature monitoring of all battery cells is particularly easy.

This task is based on the characteristics of the

The preamble of claim 1 or 11 solved by the characterizing features of claim 1 or 11. In the

 Subclaims are advantageous and expedient

Further developments specified. In the case of the battery assembly according to the invention, a first plane, which is formed by a broad side of the printed circuit board, is arranged at an angle to a second plane, wherein the central longitudinal axes of the battery cells are the second plane

span. In this way, a desired spacing of the battery cells is used to accommodate the printed circuit board, so that little additional space must be provided for housing the printed circuit board in the housing. The invention further provides that the first plane and the second plane are arranged at right angles to each other. As a result, the circuit board forms a wall between the battery cells with minimal space requirements. A rectangular arrangement of the planes brings in particular the advantage that both battery cells can be positioned in the same way lateral of the circuit board and so a

Assembly of the battery assembly is simplified.

Furthermore, it is provided that the first level a

Mounting surface of the circuit board forms, on which at least a part of the electronic components is arranged. As a result, at least a part of the electronic components is likewise arranged between the battery cells, so that optimum use is made of available space between the battery cells, which is present in particular when cylindrical cylindrical cells are used.

It is also provided that the circuit board

 Connecting lines for connecting the battery cells comprises, wherein positive poles or negative poles of the battery cells are connected via the connecting lines to the circuit board, wherein the connecting lines are fixed in particular by plug-in connections to the housing. Through the central, central

Arrangement of the circuit board in the interior of the housing can be all poles of the battery cells with

Contact leads, which are shorter than a length of the battery cells, which is measured in the direction of the longitudinal axis of the battery cell. Furthermore, it is provided that the circuit board

Contact leads for electrical connection with a

electrical device, in particular a telematics device, to deliver energy or to absorb energy, said contact lines are guided transversely to the longitudinal axes of the battery cells through the housing to an outside of the housing. By such guidance of the contact lines short contact lines are sufficient so that material and

Weight can be saved.

Furthermore, it is provided that the housing comprises a projection with guide ribs, wherein the contact lines are connected to the projection and form a contacting region. In this way, a kind of plug is formed, by means of which the battery assembly can be securely and easily connected to a mating connector of an electrical device.

It is also contemplated that the housing comprises at least a first housing shell and a second housing shell, wherein at least one of the housing shells at least one,

comprises in particular formed by opposing ribs slot in which the circuit board is inserted. By a multi-part design of the housing can be the

Simply mount the battery cells and the printed circuit board. Ribs can be easily and in the interior of the housing

to save space.

Furthermore, it is provided that at least one of the ribs also forms a system for a battery cell, wherein the system is designed in particular as a contact surface, wherein the contact surface in particular to a curvature of a

cylindrical outer surface of one of the battery cells is adjusted. In a dual function, in which a rib supports both the circuit board and one of the battery cells, this is particularly effective in terms of saving space.

According to an embodiment, it is also provided that an electronics unit the circuit board and on this

arranged arranged electronic components, wherein the

Electronic unit further comprises a temperature sensor, wherein the temperature sensor is arranged in particular on the circuit board and in particular arranged such that it has equal distances to the first battery cell and to the second battery cell. This can also be a

Temperature sensor can be accommodated in a space-saving and can in particular with a single temperature sensor a

Temperature of the entire system can be measured reliably, since the monitoring regardless of which battery cell is causing a rising temperature in comparable

Accuracy is done. Finally, it is provided to regulate a charging voltage when charging the battery cells and / or a discharge voltage when discharging the battery cells by means of the electronics unit in particular also temperature-controlled. As a result, both a charging process and a discharge process can be carried out particularly gently for the battery cells.

In the telematics unit according to the invention for a vehicle, which comprises a telematics device and a battery assembly, in which the telematics device is connected to the power supply to an electrical system of the vehicle, in which the

Battery assembly for supplying energy to the telematics ikgeräts is provided in case of failure of the power supply provided by the electrical system and in which the

Telematic device comprises at least one transmitting and receiving unit, it is provided that the battery assembly is formed according to at least one of claims 1 to 10.

This results in the telematics unit for the claims 1 to 10 listed advantages. For the purposes of the invention are under electronic components

Resistors, capacitors, controllers, LEDs, sensors and similar components understood. Further details of the invention will become apparent in the drawing with reference to schematically illustrated embodiments

described. Hereby shows:

Figure 1: an exploded view of an inventive

 Battery assembly; FIG. 2 shows a perspective view of the battery assembly shown in FIG

 Condition, with an assembly of the securing means has not yet taken place; FIG. 3 shows a perspective view of the battery assembly shown in FIG. 1 in the completely assembled state;

Figure 4: a perspective view of

 Electronic unit of the one shown in FIG

Battery assembly;

Figure 5: a perspective view of the lower

 Housing shell embedded electronics unit;

Figure 6: a perspective view of the lower

 Housing shell embedded electronic unit with inserted battery cells and Figure 7: a schematic representation of a

 Telematics unit.

FIG. 1 shows an exploded view of a battery assembly 1 according to the invention. The battery assembly 1 comprises a first battery cell 2, a second battery cell 3, an electronics unit 6 and a housing 5. The electronics unit 6 comprises a printed circuit board 7 and arranged on this electronic components 8 (see also Figures 4 and 5, wherein the components 8 are only exemplarily denoted by reference numerals). The housing 5 comprises a first, lower housing shell

9 and a second upper housing shell 10 and two

Securing means 11, 12 which are formed by closed-to-tape tape strips 13, 14. The electronics unit 6 further comprises connection lines 15a, 15b, 16, which are provided for connecting the battery cells 2, 3 to the electronics unit 6. Furthermore, the electronic unit 6 comprises contact lines 17, 18, 19, 20 and 21, which for

electrical connection of the battery assembly 1 to a schematically illustrated in Figure 7 electrical device 101 serve. In FIG. 2, the battery assembly 1 is excluded from the securing means 11, 12 in the assembled state in FIG

shown in perspective view. In this view, it can be seen that the upper housing shell 10 with a

molded-on tab 22 form-fitting with the lower

Housing shell 9 is connected, wherein the tab 22 for this purpose has a recess 22a and the lower housing shell 9 for this purpose a wedge-like projection 23 (see also Figure 1). Opposite to the tab 22 and the projection 23, a further tab and a further projection are arranged on the housing shells 9, 10, so that the housing shells 9, 10 on opposite transverse sides 25, 26 of the housing fifth

connected to each other.

In the figure 3, the battery assembly 1 is then shown in a fully assembled state, in which the

 Securing means 12, 13 which consists of the two housing shells 9,

10 encompass composite housing 5, so that the

latching connected housing shells 9, 10 can not separate from each other even with vibrations. The housing shells 9, 10 are interconnected by mutually overlapping edge regions and / or a seal, not shown, such that an inner space 24 (see FIG. 6) of the housing 5 is watertight with respect to an environment U. is sealed.

In FIGS. 4, 5 and 6, a kind is now shown in steps

Assembly process shown. In the figure 4 are on the

Printed circuit board 7, the electronic components 8 recognizable.

Furthermore, the connecting line 15a and 15b with the

Circuit board 7 connected so that they are used when

Battery cells 2, 3 with a positive pole 27a of the first

Battery cell 2 and a negative pole 28b of the second

Battery cell 3 is connected (see also Figure 1). Here, the battery cells 2, 3 connected in series are connected to a negative pole 27b of the first battery cell 2 and a positive pole 28a of the second battery cell 3 via the connecting line 16 (see also FIG. 1), which - as shown in FIG Housing shell 9 is fixed and has no electrical contact with the circuit board 7. The contact lines 17 to 21 are electrically connected to the circuit board 7, so that can be supplied via this the electronic unit 6 electrical energy or dissipated therefrom. The electronic unit 6 forms a circuit 29, which optionally charging or discharging the

Battery cells 2, 3 allows. It is provided that the electronics unit 6 a discharge voltage at

Discharging the battery cells 2, 3 controls and thus as

Boost converter operates, which increases a voltage provided by the battery cells 2, 3 available. According to one

Embodiment, it is also envisaged that the

Electronics unit 6 optionally a charging voltage when charging the battery cells 2, 3 or a discharge voltage when discharging the battery cells 2, 3 controls.

After the figure 5 shows how the electronic unit 6 and in particular its printed circuit board 7 with the lower

Housing shell 9 is connected, the figure 6 shows the arrangement shown in Figure 5 in an approximately 180 ° to a

High axis HA (see Figure 5) rotated view at

used battery cells 2, 3. Here are the

Battery cells 2, 3 corresponding to those shown in FIG Arrows II, III pushed laterally to the electronics unit 6.

Accordingly, as is apparent from FIG. 6, the electronic unit 6 is arranged between the first battery cell 2 and the second battery cell 3. Here are the

Battery cells 2, 3 formed as a cylinder-shaped battery cells. The battery cells 2, 3 are aligned so that a central longitudinal axis 2a of the first battery cell 2 and a central longitudinal axis 3a of the second battery cell 3 are parallel to each other. The cylinder-shaped

Battery cells, in particular in the design of AA cells or AAA cells are formed. By the cylinder-like

Shaping results in parallel lying battery cells between their with convex curvature opposite jacket sections considerable space, which in

geometric approach through two hollow sections with

Triangle-like cross-section can be described. If the battery cells are slightly spaced from each other, which is regularly the case with battery modules in order to avoid excessive heating of the battery cells, there is a free space between the two battery cells, through which the construction spaces described as hollow profiles can be connected and which in particular for carrying out the

PCB of the electronics unit is suitable.

The battery cells 2, 3 and the electronics unit 6 are aligned with each other so that a mounting surface 30 (see also Figure 5) of the circuit board 7, which is formed by a broad side 4 of the circuit board 7 and on which at least a portion of the electronic components 8 is arranged , defines a first plane E30, said first plane E30 being perpendicular to a first axis through the central longitudinal axis 2a

Battery cell 2 and the central longitudinal axis 3a of the second

Battery cell 3 defined and spanned second level

E23 stands. Here are both central longitudinal axis 2a and 3a in the second plane E23. Alternatively, the orientation of the printed circuit board 7 of the electronic unit 6 to the battery cells 2, 3 also so

describe that the first plane E30 formed by the broad side 4 of the printed circuit board 7 is parallel to a third, imaginary plane E2a, in which the central longitudinal axis 2a of the first battery cell 2 lies, and parallel to a fourth, imaginary plane E3a, in which the central longitudinal axis 3a the second battery cell 3 is aligned. From a comparison of FIGS. 2 and 6, it can be seen that contact lines 17 to 21 are led transversely to the longitudinal axes 2 a, 3 a of the battery cells 2, 3 through the housing 5 to an outer side 31 of the housing 5. In this case, the housing 5 has a projection 32 which comprises guide ribs 33 (only denoted by reference numerals by way of example). The

 Contact lines 17 to 21 are connected to the projection 32 and form a contacting region 34.

The lower housing shell 9, which forms a carrier element, comprises two through opposite ribs 35, 36 and 37,

38 formed slots 39 and 40, in which the circuit board 7 is inserted (see in particular Figures 1 and 5).

The ribs 35, 37 and 36, 38 each form a system for the battery cell 2 and 3. The system is designed as a contact surface and a curvature of a cylindrical

Mantle surface M2 or M3 of the battery cells 2 and 3 adapted (see in particular Figures 1 and 5). According to one embodiment variant, the electronics unit 6 also includes a temperature sensor 41 (see FIG. 5). This is arranged on the circuit board 7 such that it has equal distances to the first battery cell 2 and to the second battery cell 3.

In the figure 7 is shown in a schematic representation of the battery assembly 1 shown in Figures 1 to 6 together with the mentioned electrical device 101, to which the Battery assembly 1 is connected. The electrical device

101 is designed as a telematics device 102. The telematics device

102 and the battery assembly 1 form a Telemat ikeinheit

103 for a vehicle 106. The telematics device 102 is connected to the power supply to an electrical system 105 of the vehicle 106, wherein the battery assembly 1 for

Power supply of the telematics device 102 in case of failure of the on-board network 105 made available

Energy supply is provided. The telematics device 102 comprises at least one transmitting and receiving unit 104.

Reference sign list:

1 battery assembly

 2 first battery cell

 3 second battery cell

 4 broadside of 7

 5 housing

 6 electronics unit

 7 circuit board

 8 electronic component

9 first, lower housing shell

10 second, upper housing shell

11, 12 securing means

 13, 14 strips of adhesive tape

 15a, 15b, 16 connecting cable

17 - ^■ 21 contact line

 22 tabs on 10

 22a recess at 22nd

 23 wedge-shaped lead 9

24 interior of 5

 25, 26 lateral side of 5

 27a positive pole of 2

 27b negative pole of 2

 28a plus pole of 3

 28b negative pole of 3

 29 circuit

 30 mounting surface

 31 outside of 5

 32 lead on 5

 33 guide ribs of 32

34 contacting area

 35, 36 rib

 37, 38 rib

 39 slot wipe 35, 36

40 slot between 37, 38

41 temperature sensor

101 electrical device 102 Telematic device

 103 telematics unit

 104 transmitting and receiving unit

 105 electrical system

106 vehicle

E2a third level lies in the 2a

 E3a fourth level lies in the 3a

 E30 first level defined by 30

E23 second level defined by 2a and 3a

HA vertical axis

 M2, M3 lateral surface of 2 resp. 3

 U environment

 II, III arrow

Claims

Claims : A battery assembly (1) comprising at least a first battery cell (2), a second battery cell (3), a Printed circuit board (7) and a housing (5), wherein the battery cells (2, 3) are elongated, in particular cylindrical, are formed, wherein in the housing (5) the battery cells (2, 3) and the circuit board (7) are accommodated, the Battery cells (2, 3) are arranged such that a Central longitudinal axis (2a) of the first battery cell (2) and a central longitudinal axis (3a) of the second battery cell (3) parallel to each other and the printed circuit board (7) between the first battery cell (2) and the second battery cell (3) is arranged, characterized in that a first plane (E30), which is formed by a broad side (4) of the printed circuit board (7), is arranged at an angle to a second plane (E23), wherein the central longitudinal axes (2a, 3a) of the battery cells (2, 3) span the second level (E23). 2. Battery assembly according to claim 1, characterized in that the first plane (E30) is arranged at right angles to the second plane (E23). 3. Battery assembly according to at least one of the preceding claims, characterized in that the first plane (E30) forms a mounting surface (30) of the printed circuit board (7) on which at least a part of the electronic components (8) is arranged. 4. Battery assembly according to at least one of the preceding claims, characterized in that the printed circuit board (7) leads (15a, 15b, 16) for connecting the Battery cells (2, 3), wherein positive poles (27a, 28a) and negative poles (27b, 28b) of the battery cells (2, 3) via the Connecting lines (15a, 15b, 16) are connected to the circuit board (7), wherein the connecting lines (15a, 15b, 16) in particular by means of plug connections to the housing (5) are fixed. 5. Battery assembly according to at least one of the preceding claims, characterized in that the printed circuit board (7) contact lines (17 - 21) for electrical connection to an electrical device (101), in particular a  Telematic device (102) comprises, in order to release energy or to absorb energy, wherein these contact lines (17 - 21) transverse to longitudinal axes (2a, 3a) of the battery cells (2, 3) through the housing (5) on an outer side (31) of the housing out (5). 6. Battery assembly according to claim 5, characterized in that the housing (5) has a projection (32) with guide ribs (33), wherein the contact lines (17-21) are connected to the projection (32) and a contacting region (34) form. 7. Battery assembly according to at least one of the preceding claims, characterized in that the housing (5) at least a first housing shell (9) and a second Housing shell (10), wherein at least one of Housing shells (9, 10) at least one, in particular by opposing ribs (35, 36, 37, 38) formed slot (39, 40), in which the circuit board (7) is inserted. 8. Battery assembly according to claim 7, characterized in that at least one of the ribs (35 - 38) also forms a plant for a battery cell (2, 3), wherein the plant is formed in particular as a contact surface, wherein the  Bearing surface in particular to a curvature of a cylindrical lateral surface (M2, M3) of one of the battery cells (2, 3) is adjusted. 9. Battery assembly according to at least one of the preceding claims, characterized in that an electronic unit (6), the printed circuit board (7) and arranged on this electronic components (8), wherein the Electronics unit (6) further comprises a temperature sensor (41), wherein the temperature sensor (41) is arranged in particular on the printed circuit board (7) and in particular arranged so that this same distances to the first battery cell (2) and to the second battery cell ( 3) having . 10. Battery assembly according to at least one of the preceding claims, characterized in that a charging voltage when charging the battery cells (2, 3) and / or a discharge voltage when discharging the battery cells (2, 3) by means of Electronic unit (6) is controlled in particular also temperature controlled. 11. Telematics unit (103) for a vehicle (106) comprising a telematics device (102) and a battery assembly (1), wherein the telematics device (102) is connected to an electrical system (105) of the vehicle (106) for power supply, wherein the Battery assembly (1) for supplying power to the Telematic device (102) is provided in case of failure of the electrical system provided by the electrical system (105) and wherein the telematics device (102) at least one transmitting and receiving unit (104), characterized in that the battery assembly according to at least one of claims 1 to 10 is formed.