Battery disconnect unit

Abstract

The invention relates to a battery disconnect unit (1) with a plurality of electrical elements (2) and electronic elements (3) and a temperature control device (4) comprising a plurality of flow channels (6), wherein a first flow channel (61) is arranged immediately adjacent to a first electrical element (71) and / or to a first electronic element (81) and a second flow channel (62) is arranged immediately adjacent to a second electrical element (72) and / or to a second electronic element (82), and wherein the temperature control device (4) has at least one actuating element (9) configured to control a temperature control fluid flow through the first flow channel (61) and the second flow channel (62) in such a manner as tothat the actuating element (9) controls the temperature control fluid flow as a function of a first temperature of the first electrical element (71) and / or a first temperature of the first electronic element (81) and a second temperature of the second electrical element (72) and / or a second temperature of the second electronic element (82)..

Description

State of the art:

[0001] The invention is based on a battery separation unit according to the class of the independent claim.

[0002] In battery separation units for batteries or battery modules, the cooling requirements for their individual components are increasing, particularly due to higher electrical currents. Depending on the operating state of the battery separation unit, such electrical currents can occur for a relatively short time or flow constantly through a single component.

[0003] State of the art in this regard is, for example, US 2014 / 345662 or US 2012 / 282511. Disclosure of the invention:

[0004] A battery separation unit with the features of the independent claim offers the advantage that temperature control and in particular cooling of electrical elements and electronic elements can be adjusted to suit the respective requirements and operating conditions.

[0005] For this purpose, the invention provides a battery separation unit with a plurality of electrical elements and a plurality of electronic elements. Furthermore, the battery separation unit also includes a temperature control device comprising a plurality of flow channels.

[0006] The temperature control device comprises a first flow channel and a second flow channel. The first flow channel is arranged directly adjacent to a first electrical element and / or a first electronic element, and the second flow channel is arranged directly adjacent to a second electrical element and / or a second electronic element. The immediately adjacent arrangement is designed, in particular, for temperature control of the respective electrical element and / or electronic element.

[0007] Furthermore, the temperature control device comprises at least one control element configured to control a temperature control fluid flow through the first flow channel and the second flow channel. The temperature control fluid flow can be controlled in such a way that the control element controls the temperature control fluid flow as a function of a first temperature of the first electrical element and / or a first temperature of the first electronic element and a second temperature of the second electrical element and / or a second temperature of the second electronic element.

[0008] The measures listed in the dependent claims enable advantageous further developments and improvements of the device specified in the independent claim.

[0009] It is advisable for the actuator to comprise an electric motor, a solenoid valve, or a bimetal element. This allows the flow of the tempering fluid to be controlled simply and reliably.

[0010] The electronic elements preferably comprise a switching device, in particular a relay, a resistor or a semiconductor element.

[0011] It should be noted at this point that electronic elements basically serve to regulate and monitor an electrical current.

[0012] For example, a switching device basically serves to switch an electrical circuit so that it is either open or closed. This can be used to regulate a battery module in particular so that a voltage tap of the battery module, for example the positive voltage tap of the battery module, can be de-energized. Such switching devices therefore carry the maximum current of the respective battery module. The switching device can be designed, for example, as a semiconductor switch, which is also known as transistors, metal oxide semiconductor field effect transistors (or MOSFET for short), or insulated gate bipolar transistors (or IGBT for short). Furthermore, the switching device can also be designed, for example, as a relay, which is basically a switch operated by electrical current and generally has two switching positions, and in which an electrical contact, for example,can be opened and closed by an electromagnetic force.

[0013] The electrical elements expediently comprise a busbar. It should be noted here that electrical elements essentially serve to conduct an electrical current. They therefore essentially transport electrical energy and, in particular, connect energy sources and consumers. Electrical elements are, for example, cables, wires, or stranded conductors, which are preferably made of copper, aluminum, nickel, and / or silver.

[0014] It is expedient if the temperature control device further comprises an inlet which is designed to admit temperature control fluid and an outlet which is designed to discharge temperature control fluid.

[0015] According to a preferred aspect of the invention, the second flow channel is arranged at least partially surrounding the first flow channel.

[0016] It is expedient if the number of flow channels is one greater than the number of control elements. In particular, this can provide a design in which one control element is directly assigned to each flow channel and one flow channel is without an assigned control element, so that the tempering fluid generally flows through that flow channel without an assigned control element, and by means of the individual control elements, tempering fluid can be diverted from this tempering fluid flow into the individual flow channels.

[0017] In particular, an embodiment of a battery separation unit according to the invention offers the advantage that an adjustable temperature control can be formed by means of the at least one actuating element, which provides temperature control fluid to individual flow channels with a suitable volume flow. Short description of the drawings:

[0018] Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.

[0019] It shows: Fig. 1 an embodiment of a battery separator unit according to the invention in a perspective exploded view and Fig. 2 an embodiment of a temperature control device of a battery separation unit.

[0020] Fig. 1 shows an embodiment of a battery separation unit 1 according to the invention in a perspective exploded view.

[0021] The battery separation unit 1 comprises a plurality of electrical elements 2 and electronic elements 3.

[0022] In particular, the battery separation unit 1 comprises, for example, a switching device 31, in particular a relay 310, a resistor 32 or a semiconductor element 33.

[0023] Furthermore, the battery separation unit 1 comprises, for example, several busbars 21.

[0024] Furthermore, the battery separation unit 1 has a temperature control device 4.

[0025] The Fig. 2 shows an embodiment of the temperature control device 4 of the battery separation unit 1.

[0026] The temperature control device 4 initially has an inlet 51 and an outlet 52. The inlet 51 is designed to admit temperature control fluid into the temperature control device 4, and the outlet 52 is designed to discharge temperature control fluid from the temperature control device 4.

[0027] The temperature control device 4 comprises a plurality of flow channels 6. In particular, the temperature control device 4 comprises Fig. 2 five flow channels 6. Furthermore, the temperature control device 4 comprises at least one actuating element 9. An actuating element 9 is designed to control a temperature control fluid flow through the flow channels 6.

[0028] Such an actuating element 9 can in particular comprise an electric motor, a solenoid valve or a bimetal.

[0029] In particular, a first flow channel 61 is arranged directly adjacent to a first electrical element 71 and / or a first electronic element 81. No actuating element 9 is directly associated with the first flow channel 61.

[0030] In particular, a second flow channel 62 is arranged directly adjacent to a second electrical element 72 and / or a second electronic element 82. A second actuating element 92 is directly associated with the second flow channel 62.

[0031] In particular, a third flow channel 63 is arranged directly adjacent to a third electrical element 73 and / or a third electronic element 73. A third actuating element 93 is directly associated with the third flow channel 63.

[0032] In particular, a fourth flow channel 64 is arranged directly adjacent to a fourth electrical element 74 and / or a fourth electronic element 74. A fourth actuating element 94 is directly associated with the fourth flow channel 64.

[0033] In particular, a fifth flow channel 65 is arranged directly adjacent to a fifth electrical element 75 and / or a fifth electronic element 75. A fifth actuating element 95 is directly associated with the fifth flow channel 65.

[0034] It can be seen in particular that the second flow channel 62 and the third flow channel 63 are arranged at least partially directly or directly encircling the first flow channel 61.

[0035] The second flow channel 62 and the third flow channel 63 are formed symmetrically to each other.

[0036] It can also be seen in particular that the fourth flow channel 64 and the fifth flow channel 65 are arranged to at least partially circumferentially or indirectly surround the first flow channel 61 and that the second flow channel 62 and the third flow channel 63 are arranged to at least partially circumferentially or directly surround the first flow channel 61.

[0037] The fourth flow channel 64 and the fifth flow channel 65 are formed symmetrically to each other.

[0038] At this point it should be noted that it is also possible to arrange only the first flow channel 61, the second flow channel 62 and the third flow channel 63.

[0039] Overall, it should be noted that the number of flow channels 6 is one larger than the number of control elements 9.

[0040] At this point, it should be noted that tempering fluid flows into the tempering device 4 through the inlet 51 and then generally flows through the first flow channel 61.

[0041] By means of the plurality of control elements 9, 92, 93, 94, 95, tempering fluid can be directed into the respective further flow channels 6, 62, 63, 64, 65.

[0042] After flowing through, the tempering fluid flows out of the tempering device 4 through the outlet 52.

[0043] The control elements 9 control the flow of tempering fluid through the flow channels 6 depending on a temperature of the individual electrical elements 2, 71, 72, 73, 74, 75 and electronic elements 3, 81, 82, 83, 84, 85. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 2014 / 345662

[0003] US 2012 / 282511

[0003]

Claims

[1] Battery separation unit (1) with a plurality on electrical elements (2) and electronic elements (3) and a temperature control device (4), which a plurality of flow channels (6), wherein a first flow channel (61) is immediately adjacent to a first electrical element (71) and / or to a first electronic element (81) and a second flow channel (62) immediately adjacent to a second electrical element (72) and / or to a second electronic element (82), and wherein the temperature control device (4) has at least one actuating element (9) which is designed to control a temperature control fluid flow through to control the first flow channel (61) and the second flow channel (62) in such a way that the control element (9) controls the flow of tempering fluid depending a first temperature of the first electrical element (71) and / or a first temperature of the first electronic element (81) and a second temperature of the second electrical element (72) and / or a second temperature of the second electronic element (82). [2] Battery separator unit according to the preceding claim 1, characterized by that the actuating element (9) comprises an electric motor, a solenoid valve or a bimetal. [3] Battery separator unit according to one of the preceding claims 1 to 2, characterized by that the electronic elements (3) comprise a switching device (31), in particular a relay (310), a resistor (32) or a semiconductor element (33). [4] Battery separator unit according to one of the preceding claims 1 to 3, characterized by that the electrical elements (2) comprise at least one busbar (21). [5] Battery separator unit according to one of the preceding claims, characterized by , that the tempering device (4) continues an inlet (51) which is designed for the inflow of tempering fluid into the tempering device (4), and an outlet (52) which is designed for the outflow of tempering fluid from the tempering device (4). [6] Battery separation unit according to one of the preceding claims, characterized by that the second flow channel (62) is arranged at least partially surrounding the first flow channel (61). [7] Battery separator unit according to one of the preceding claims, characterized by that the number of flow channels (6) is one greater than the number of control elements (9).

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