Switching device for a test bench for electrical components and test bench for electrical components

Description

[0001] The present invention relates to a switching device for a test bench for electrical components and a test bench for electrical components.

[0002] Modern motor vehicles are increasingly equipped with fully electric or hybrid drives. A battery, also known as a traction battery, supplies one or more electric motors with electrical power to propel the vehicle.

[0003] During the manufacturing process, these batteries undergo a variety of tests. Among other things, a performance test or functional test is conducted to ensure the battery's functionality and operational safety as part of an end-of-line test. In this test, the battery is repeatedly charged and discharged within a short period. Furthermore, the battery may be subjected to a high-voltage voltage for insulation testing.

[0004] Connecting a battery under test to an electrical component test bench requires numerous plug connections. In addition to the power supply, there may be a variety of control and data lines, all of which must be connected separately. This can result in more than forty plug connections between the battery and the electrical component test bench.

[0005] During a battery performance or functional test, all battery terminals are switched separately. However, for high-voltage or insulation testing, the terminals must be bridged and then individually tested or connected. Therefore, a challenge lies in being able to switch quickly between a performance test and an insulation test.

[0006] The terms performance test and functional test are used synonymously in this text.

[0007] During the power test, voltages ranging from 5 volts to 1000 volts and currents up to 1000 amperes are applied. During the insulation test, voltages up to 10,000 volts and currents in the range of a few milliamperes are applied. Therefore, providing robust components that can reliably and safely transmit these electrical loads, especially while maintaining a compact design, presents a significant challenge.

[0008] Documents CN212540654U, CN113490355A and US2019273289A1 show equipment for testing batteries.

[0009] Against this background, the invention is based on the technical problem of providing a switching device for a test bench for electrical components and a test bench for electrical components that enables a simple, safe and quick change between a functional test and an insulation test, reliably and safely transmits the required electrical power and in particular occupies a small installation space.

[0010] The technical problem described above is solved by the independent claim. Further embodiments of the invention are described in the dependent claims and the following description. According to a first alternative, the invention relates to a switching device for a test bench for electrical components, comprising a support structure, a first contact block attached to the support structure, the first contact block having first connections for connecting a battery to be tested, the first contact block having one or more second connections for connecting a high-voltage tester, and the first contact block having third connections for connecting a functional tester, and a second contact block, the second contact block being a contact bridge, and the second contact block being movable relative to the first contact block.wherein the second contact block in a first contact position connects the first terminals with at least one second terminal, wherein the first terminals in the first contact position are bridged by means of a bridge element of the first contact block and connected via the bridge element to the at least one second terminal, wherein the second contact block in a second contact position connects the first terminals with the third terminals.

[0011] According to the first alternative design of the switching device according to the invention described above, the first connections are bridged in the first contact position.

[0012] According to a second alternative, the invention relates to a switching device for a test bench for electrical components, comprising a support structure, a first contact block attached to the support structure, the first contact block having first connections for connecting a battery to be tested, the first contact block having one or more second connections for connecting a high-voltage tester, and the first contact block having third connections for connecting a functional tester, and a second contact block, the second contact block being a contact bridge, the second contact block being movable relative to the first contact block, the second contact block connecting the first connections to the second connections in a first contact position, and the second contact block connecting the first connections to the third connections in a second contact position.

[0013] According to the second alternative design of the switching device according to the invention described above, the first terminals are individually connected to the second terminals in the first contact position.

[0014] Therefore, two alternative switching devices are specified according to the invention, wherein a first design of a first switching device according to the invention is configured such that the second contact block connects the first terminals with at least one second terminal in a first contact position, wherein the first terminals are bridged in the first contact position by means of a bridge element of the first contact block and are connected to the at least one second terminal via the bridge element, and wherein a second design of a second switching device according to the invention is configured such that in a first contact position the first terminals are connected to the second terminals.

[0015] The second contact block therefore allows for easy and quick switching between a functional test using a functional tester and an insulation test using a high-voltage tester.

[0016] It may be provided that twenty or more first connections and twenty or more third connections are provided.

[0017] Alternatively or additionally, it may be provided that one hundred or fewer first connections and one hundred or fewer third connections are provided.

[0018] It may be provided that exactly forty first connections and exactly forty third connections are provided.

[0019] A high number of first and third connections can be used, for example, in the testing of signal lines such as BUS lines, CAN-BUS lines or the like.

[0020] According to one embodiment of the switching device, it may be provided that the first terminals and the third terminals are designed for a current of a maximum of 32 amperes (A) and / or for a voltage of a maximum of 10 kilovolts (kV).

[0021] It may be provided that two or more first connections and two or more third connections are provided.

[0022] Alternatively or additionally, it may be provided that ten or fewer first connections and ten or fewer third connections are provided.

[0023] It may be provided that exactly three first connections and exactly three third connections are provided.

[0024] It may be provided that exactly six first connections and exactly six third connections are provided.

[0025] According to one embodiment of the switching device, it can be provided that the first terminals and the third terminals are designed for a current of a maximum of 1000 amperes, in particular a maximum of 600 amperes, and / or for a voltage of a maximum of 10 kilovolts.

[0026] The first connections can be arranged side by side in a straight line along a longitudinal direction. The third connections can be arranged side by side in a straight line parallel to the first connections and at a distance from the first connections.

[0027] The bridge element may have an electrically conductive strip. The strip may be made of copper or another electrically conductive metallic material.

[0028] According to one embodiment of the switching device, the strip can be arranged at a distance from the first and third terminals and extends parallel to the longitudinal direction and to the straight-lined first and third terminals.

[0029] Alternatively or additionally, it may be provided that the first connections are arranged between the strip and the third connections.

[0030] It may be provided that the first contact block has a connection side in the area where the first connections can be connected to a cable harness associated with a battery to be tested and in the area where the second connections can be connected to a function tester, and that the first contact block has a switching side facing away from the connection side, in the area where the first contact block can be connected to the second contact block.

[0031] According to one embodiment of the switching device, it can be provided that the first terminals and the third terminals form a first plug-in face and that terminals of the second contact block form a second plug-in face matching the first plug-in face, so that the first terminals and the third terminals can be connected to each other simultaneously by moving the second contact block into the second contact position using the second contact block.

[0032] It may be provided that the number of first connections and the number of third connections are identical.

[0033] According to one embodiment of the switching device, it can be provided that the terminals of the second contact block have fourth and fifth terminals, the number and arrangement of which correspond to the number and arrangement of the first and third terminals.

[0034] It may be provided that the first connections, the bridge element and the third connections are arranged at the same height along a path of the second contact block.

[0035] According to one embodiment of the switching device, it can be provided that the second contact block is automatically movable.

[0036] It may be provided that the second contact block is assigned a first axis to move the second contact block transversely to the first contact block, and that the second contact block is assigned a second axis to move the second contact block towards the first contact block to make a plug connection and to remove a plug connection from the first contact block.

[0037] According to a second aspect, the invention relates to a test bench for electrical components for testing a battery, comprising a high-voltage tester with a functional tester, wherein the functional tester has a source and / or sink for charging and / or discharging the battery and / or wherein the functional tester has a data interface and / or a 12-volt supply for controlling the battery, with a switching device.

[0038] According to a third aspect, the invention relates to a test bench for electrical components for testing a battery, comprising a high-voltage tester and a functional tester, wherein the functional tester has a source and sink for charging and discharging the battery, and wherein the functional tester has a data interface and a 12-volt supply for controlling the battery, with a switching device according to the invention which is connected to the source and sink and is provided for switching from the source and sink to the high-voltage tester, and with a further switching device according to the invention which is connected to the data interface and the 12-volt supply and is provided for switching from the data interface and the 12-volt supply to the high-voltage tester.

[0039] When the present text refers to a test bench for electrical components, it may in particular be referring to a battery test bench.

[0040] The invention is described in more detail below with reference to exemplary embodiments illustrated in the drawings. These schematically depict: Fig. 1 a first switching device according to the invention for a test bench for electrical components in a perspective view; Fig. 2 the switching device made of Fig. 1 in a top view; Fig. 3 a first contact block of the switching device made of Fig. 1 in a view from below; Fig. 4 a second contact block of the switching device made of Fig. 1 in a top view with the first contact block hidden; Fig. 5 the switching device made of Fig. 1 in a side view with the first contact block and the second contact block in a decoupled state in a partial section; Fig. 6 the switching device made of Fig. 1in a side view with the first contact block and the second contact block in a coupled state in a first contact position in a partial section; Fig. 7 the switching device made of Fig. 1 in a side view with the first contact block and the second contact block in a coupled state in a second contact position in a partial section; Fig. 8 the switching device made of Fig. 1 in a further side view with the first contact block and the second contact block in a decoupled state in a partial section; Fig. 9 the switching device made of Fig. 1 in a further side view with the first contact block and the second contact block in a coupled state in the second contact position in a partial section; Fig. 10 the switching device made of Fig. 1 in a further side view with the first contact block and the second contact block in a decoupled state in a partial section; Fig. 11 the switching device made of Fig. 1 in a further side view with the first contact block and the second contact block in a coupled state in the first contact position in a partial section; Fig. 12 a second switching device according to the invention for a test stand for electrical components in a perspective view; Fig. 13 the switching device made of Fig. 12 in a top view; Fig. 14 the switching device made of Fig. 12 in a side view in a decoupled state in a partial section; Fig. 15 the switching device made of Fig. 12 in a side view in a decoupled state in a partial section; Fig. 16 the switching device made of Fig. 12 in a side view in a coupled state in a first contact position; Fig. 17 the switching device made of Fig. 12Fig. 18 shows a test bench according to the invention for electrical components in a coupled state in a second contact position, with the switching devices in the second contact position; Fig. 19 shows a test bench according to the invention for electrical components with the switching devices in the first contact position.

[0041] Fig. 1 Figure 1 shows a first switching device 2 according to the invention for a test bench for electrical components in a perspective view. A Cartesian coordinate system XYZ is introduced for better comprehension of the following explanations.

[0042] The switching device 2 has a support structure 4. In this case, the support structure 4 is a support structure 4 composed of aluminum profiles. A first contact block 6 is attached to the support structure 4.

[0043] The first contact block 6 has first terminals 8 for connecting a battery under test. In this example, the first contact block 6 has exactly 40 first terminals 8 and exactly 40 third terminals 12. The first terminals 8 and the third terminals 12 are designed for a maximum current of 32 amperes and a maximum voltage of 10 kV.

[0044] The first terminals 8 are arranged side by side in a straight line along a longitudinal direction (L). The third terminals 12 are arranged side by side in a straight line parallel to the first terminals 8 and at a distance from the first terminals 8.

[0045] The first contact block 6 has two second terminals 10 for connecting a high-voltage tester, one of the terminals 10 being a signal terminal and the other being a power terminal.

[0046] The first contact block 6 has three terminals 12 for connecting a function tester. The first contact block 6 thus serves to connect, on the one hand, a battery to be tested and, on the other hand, test equipment such as a high-voltage tester and a function tester to the switching device 2.

[0047] Fig. 2 shows the first contact block with its first connections 8, its second connections 10 and its third connections 12 in a top view.

[0048] In the present example, the first contact block 6 is fixed, i.e., immovably held against the support structure 4. The first contact block 6 is therefore not movable relative to the support structure 4.

[0049] The switching device 2 has a second contact block 14. The second contact block 14 is a contact bridge 14. The second contact block 14 is movable relative to the second contact block 6.

[0050] The switching device 2 serves to switch a test bench for electrical components between two different operating modes - namely a performance test or functional test and an insulation test.

[0051] In a first contact position, the second contact block 14 connects the first terminals 8 to the second terminals 10. The first contact position is shown in a side view in Fig. 6 As shown. In the first contact position, the first terminals 8 are bridged by means of a bridge element 16 of the first contact block 6 and connected to the second terminals 10 via this bridge element. The bridge element 16 has an electrically conductive strip 18 for this purpose, which in this case is a copper strip.

[0052] The strip 18 is arranged at a distance from the first terminals 8 and the third terminals 12 and extends parallel to the longitudinal direction L and to the straight-lined first terminals 8 and third terminals 12 ( Fig. 3 ). The first terminals 8 are arranged between the strip 18 and the third terminals 12.

[0053] The second contact block 14 connects the first terminals 8 with the third terminals 12 in a second contact position ( Fig. 7 ).

[0054] The first contact block 6 has a connection side 20, in the area of ​​which the first terminals 8 can be connected to a cable harness assigned to a battery to be tested and in the area of ​​which the second terminals 12 can be connected to a function tester ( Fig. 1 ).

[0055] The first contact block 6 has a switching side 22 facing away from the connection side 20, in the area of ​​which the first contact block 6 can be connected to the second contact block 14.

[0056] The first connections 8 and the third connections 12 form a first plug-in face ( Fig. 3 ). Terminals 24, 26 of the second contact block 14 form a second plug-in face that matches the first plug-in face ( Fig. 4 ).

[0057] The first terminals 8 and the third terminals 12 can be connected to each other simultaneously by moving the second contact block 14 into the second contact position using the second contact block 14.

[0058] In this case, the number of first connections and the number of third connections (12) are identical. Connections 24 and 26 of the second contact block 14 have fourth connections 24 and fifth connections 26, the number and arrangement of which correspond to the number and arrangement of the first connections (8) and the third connections (12). The switching device 2 is 40-pole in this case.

[0059] How Fig. 6 and Fig. 7 As can be seen, the first terminals 8, the bridge element 16, and the third terminals 12 are arranged at the same height in the Z-direction along a travel path (Z-direction) of the second contact block 14. Therefore, upon reaching the first or second contact position, the terminals corresponding to each other in that contact position are simultaneously connected.

[0060] The second contact block 14 can be moved automatically.

[0061] The second contact block 14 is assigned a first axis 28 in order to move the second contact block 14 perpendicular to the first contact block 6 in the X direction.

[0062] A second axis 30 is assigned to the second contact block 14 in order to move the second contact block 14 in the Z direction to establish a plug connection in the direction of the first contact block 6 and to remove the second contact block 14 from the first contact block 6 to release a plug connection.

[0063] The following describes the operation of switching device 2.

[0064] The Figure 1 , 5 , 8 , 10Figure 2 shows the switching device 2 with the first contact block 6 and the second contact block 14 in the decoupled state. In this decoupled state, the first contact block 6 and the second contact block 14 are spaced apart in the Z-direction, such that an air gap 32 is formed between the terminals 24, 26 of the second contact block 14 and the terminals 8, 10, 12 of the first contact block 6.

[0065] The entire switching device 2 can be enclosed in a housing 34, the interior of which I is pressurized or sealed with sealing air. This protects the switching device 2 from environmental influences such as moisture, dust, or dirt. The housing 34 and the interior I are shown only as examples in Figure 5 hinted at.

[0066] To remove the second contact block 14 from the in Fig. 5 shown position in the Figure 6To move the first contact position shown, the second contact block 14 is initially moved linearly and parallel to the X-axis with the first axis 28 according to the arrangement in Fig. 5 moved to the right until the terminals 24, 26 of the second contact block 14 are located exactly below the terminals 8 and the strip 18 when viewed in the vertical Z direction.

[0067] Subsequently, a linear lifting movement in the Z direction is performed using the second axis 30 to move the second contact block 14 in the direction of the first contact block 6 and to electrically connect the terminals 24 to the strip 18 and simultaneously to connect the terminals 26 to the terminals 8.

[0068] Each of the respective terminals 24 is connected to a corresponding terminal 26 of the contact block 14 by means of a respective current bar 36.

[0069] In the initial contact according to Fig. 6Each of the first terminals 8 is therefore connected via a respective assigned terminal 26 and its respective assigned current bar 36 to a respective assigned terminal 24, whereby in this case each of the terminals 24 is connected to the copper strip 18 in order to bridge all terminals 8 in this way.

[0070] To release the contact according to the first contact position, the second contact block 14 is retracted linearly and parallel to the Z direction by means of the second axis 30 and moved away from the first contact block 6, so that the terminals of the first contact block 6 and the terminals of the second contact block 14 are no longer in engagement with each other and the air gap 32 described above is formed between the terminals.

[0071] Fig. 7 shows the second contact position. To remove the second contact block 14 from the in Fig. 5 shown decoupled position in the Fig. 7To move the contacted position shown according to the second contact position, the second contact block 14 is moved starting from the one shown in Fig. 5 The position shown is moved linearly and parallel to the Z-direction by means of the second axis 30 in the direction of the first contact block 6.

[0072] In the Fig. 7In the second contact configuration shown, each of the terminals 8 is connected to a corresponding terminal 12. Each terminal 8 is electrically connected to a corresponding terminal 24, and each corresponding terminal 24 is connected via a corresponding current bar 36 to a corresponding terminal 26, which in turn is connected to a corresponding terminal 12. Therefore, each of the terminals 8 is individually connected to a corresponding terminal 12, so that terminals 24 and 26, with their corresponding current bars 36, establish a total of 40 individual bridge connections between terminals 8 and 12.

[0073] Figure 8 shows the switching device 2 in a further side view before making contact according to the second contact position, wherein Fig. 9The second contact position after performing a lifting movement in the Z direction is shown.

[0074] Figure 10 The switching device 2 is shown in a further side view before making contact according to the first contact position, wherein Figure 11 The first contact position after performing a lifting movement in the Z direction is shown.

[0075] Fig. 12 Figure 1 shows a second switching device 2' according to the invention for a test bench for electrical components in a perspective view. A Cartesian coordinate system XYZ is introduced for better comprehension of the following explanations.

[0076] The switching device 2' has a support structure 4'. In this case, the support structure 4' is composed of aluminum profiles. A first contact block 6' is attached to the support structure 4'.

[0077] The switching device 2' is 6-pole.

[0078] The first contact block 6' has six first terminals 8' for connecting a battery under test. In this example, the first contact block 6' has exactly six first terminals 8' and exactly six third terminals 12'. For clarity, in Figure 12 Only two of the relevant connections are marked with a reference symbol.

[0079] The first terminals 8' and the third terminals 12' are designed for a maximum current of 600 amperes and a maximum voltage of 10 kV.

[0080] The first terminals 8' are arranged side by side in a straight line along a longitudinal direction (L). The third terminals 12' are arranged side by side in a straight line parallel to the first terminals 8' and at a distance from the first terminals 8'.

[0081] The first contact block 6' has six second connections 10' for connecting a high-voltage tester.

[0082] The first contact block 6' has third terminals 12' for connecting a function tester. The first contact block 6' thus serves to connect, on the one hand, a battery to be tested and, on the other hand, test equipment such as a high-voltage tester and a function tester to the switching device 2'.

[0083] Fig. 2 shows the first contact block with its first connections 8', its second connections 10' and its third connections 12' in a top view.

[0084] In the present example, the first contact block 6' is fixed, i.e., immovably held against the support structure 4'. The first contact block 6' is therefore not movable relative to the support structure 4'.

[0085] The switching device 2' has a second contact block 14'. The second contact block 14' is a contact bridge 14'. The second contact block 14' is movable relative to the second contact block 6.

[0086] The switching device 2' is used to switch a test bench for electrical components between two different operating modes - namely a performance test or functional test and an insulation test.

[0087] In a first contact position, the second contact block 14' connects the first terminals 8' to the second terminals 10'. The first contact position is shown in a side view in Fig. 16 shown.

[0088] The second contact block 14' connects the first terminals 8' with the third terminals 12' in a second contact position ( Fig. 17 ).

[0089] The first contact block 6' has a connection side 20' in which the first terminals 8' can be connected to a wiring harness associated with a battery to be tested and in which the second terminals 12' can be connected to a function tester ( Fig. 12 ).

[0090] The first contact block 6' has a switching side 22' facing away from the connection side 20', in the area of ​​which the first contact block 6' can be connected to the second contact block 14'.

[0091] The first terminals 8' and the third terminals 12' form a first mating face. Terminals 24' and 26' of the second contact block 14' form a second mating face that matches the first mating face. Fig. 14 ).

[0092] The first terminals 8' and the third terminals 12' can be connected to each other simultaneously by moving the second contact block 14' into the second contact position using the second contact block 14'.

[0093] In this case, the number of first terminals and the number of third terminals 12' are identical. The terminals 24', 26' of the second contact block 6' have fourth terminals 24' and fifth terminals 26', the number and arrangement of which correspond to the number and arrangement of the first terminals 8', the second terminals 10', and the third terminals 12'. The switching device 2' is 6-pole in this case.

[0094] How Fig. 16 and Fig. 17 As can be seen, the first terminals 8', the second terminals 10', and the third terminals 12' are arranged at the same height in the Z-direction along a travel path (Z-direction) of the second contact block 14'. Therefore, upon reaching the first or second contact position, the terminals corresponding to each other in that position are simultaneously connected.

[0095] The second contact block 14' can be moved automatically.

[0096] The second contact block 14' is assigned a first axis 28' in order to move the second contact block 14' perpendicular to the first contact block 6 in the X direction.

[0097] The second contact block 14 is assigned a second axis 30' to move the second contact block 14' in the Z direction to make a plug connection in the direction of the first contact block 6' and to remove the second contact block 14' from the first contact block 6' to release a plug connection.

[0098] The following describes the operation of the switching device 2'.

[0099] The Figures 14, 15Figure 2 shows the switching device 2' with the first contact block 6' and the second contact block 14' in the decoupled state. In this decoupled state, the first contact block 6' and the second contact block 14' are spaced apart in the Z-direction, such that an air gap 32' is formed between the terminals 24', 26' of the second contact block 14' and the terminals 8', 10', 12' of the first contact block 6'.

[0100] The entire switching device 2' can be enclosed in a housing 34', the interior l' of which is pressurized or sealed with sealing air. This protects the switching device 2' from environmental influences such as moisture, dust, or dirt. The housing 34' and the interior l' are shown only as examples in Figure 15 hinted at.

[0101] To remove the second contact block 14' from the in Fig. 15 shown position in the Fig. 16To move the first contact position shown, a linear stroke movement in the Z direction is performed using the second axis 30' to move the second contact block 14' in the direction of the first contact block 6' and to electrically connect the terminals 24' to the terminals 10' and simultaneously to connect the terminals 26' to the terminals 8'.

[0102] Each of the respective terminals 24' is connected to a corresponding terminal 26' of the contact block 14 by means of a respective current bar 36'.

[0103] In the initial contact according to Fig. 16 Each of the first terminals 8' is therefore connected via a respective assigned terminal 26' and its respective assigned current bar 36' to a respective assigned terminal 24', whereby in this case each of the terminals 24' is connected to a respective terminal 10'.

[0104] To release the contact according to the first contact position, the second contact block 14' is retracted linearly and parallel to the Z direction by means of the second axis 30' and moved away from the first contact block 6', so that the terminals of the first contact block 6' and the terminals of the second contact block 14' are no longer engaged with each other and the air gap 32' described above is formed between the terminals.

[0105] Fig. 17 shows the second contact position.

[0106] To remove the second contact block 14 from the in Fig. 14 shown decoupled position in the Fig. 17 To move the contacted position shown according to the second contact position, the second contact block 14' will be moved starting from the one shown. Fig. 14The position shown is moved linearly and parallel to the Z-direction by means of the second axis 30' in the direction of the first contact block 6. The contact position is moved by means of the first axis 28' in the X-direction between the positions according to Fig. 14 and Fig. 15 movable.

[0107] In the Fig. 17In the second contact position shown, each of the terminals 8' is connected to a corresponding terminal 12'. Each terminal 8' is electrically connected to a corresponding terminal 24', and each corresponding terminal 24' is connected via a corresponding current bar 36' to a corresponding terminal 26', which in turn is connected to a corresponding terminal 12'. Therefore, each terminal 8' is individually connected to a corresponding terminal 12', so that terminals 24' and 26', with their corresponding current bars 36', establish a total of six individual bridge connections between terminals 8' and 12'.

[0108] Fig. 18 and Fig. 19 Figure 50 schematically shows a test bench for electrical components 50 for testing a battery 38. The battery 38 is a traction battery for a motor vehicle.

[0109] The test bench for electrical components 50 has a high-voltage tester 40.

[0110] The test bench for electrical components 50 has a function tester 42, wherein the function tester 42 has a source / sink 44 for charging and discharging the battery 38 and wherein the function tester 42 has a data interface 46 and a 12 volt supply 48 for controlling the battery 38.

[0111] The test bench for electrical components 50 has a switching device 2' as described above, which is connected to the source / sink 44 and is intended for switching from the source / sink 44 to the high-voltage tester 40.

[0112] The test bench for electrical components 50 has a switching device 2 as described above, which is connected to the data interface 46 and the 12 volt supply 48 and which is intended for switching from the data interface 46 and the 12 volt supply 48 to the high-voltage tester 40.

[0113] The high-voltage tester 40 is designed to provide a voltage of up to 10 kilovolts at a few milliamperes.

[0114] The source / sink is designed for a charging / discharging capacity of 10 - 300 kilowatts.

[0115] According to Fig. 18 The switching devices 2, 2' are in the second contact position. The test bench for electrical components 50 is operated in the operating mode "functional test" or "performance test", with the battery 38 connected to the function tester 42 and its components 44, 46, 48.

[0116] According to Fig. 19 The switching devices 2, 2' are in the first contact position. The test bench for electrical components 50 is operated in the "insulation test" mode, with the battery 38 connected to the high-voltage tester 40.

[0117] The test bench for electrical components 50 can therefore be switched between the two operating modes "functional test" and "insulation test" by means of the switching devices 2, 2'. Reference sign

[0118] 2, 2'Switching device 4, 4'Support structure 6, 6'First contact block 8, 8'First connections 10, 10'Second connections 12, 12'Third connections 14, 14'Second contact block 16Bridge element 18Ridge 20, 20'Connection side 22, 22'Switching side 24, 24'Fourth connections 26, 26'Fifth connections 28, 28'First axis 30, 30'Second axis 32, 32'Air gap 34, 34'Housing 36, 36'Power bar 38Battery 40High-voltage tester 42Function tester 44Source / sink 46Data interface 4812 volt supply 50Test bench for electrical components

Claims

1. Switching device for a test bench for electrical components, - having a support structure (4, 4'), - having a first contact block (6, 6') attached to the support structure (4, 4'), - wherein the first contact block (6, 6') has first terminals (8, 8') for connecting a battery to be tested, - wherein the first contact block (6, 6') has one or more second terminals (10, 10') for connecting a high-voltage tester, and - wherein the first contact block (6, 6') has third terminals (12, 12') for connecting a function tester, characterized by - a second contact block (14, 14'), - wherein the second contact block (14, 14') is a contact bridge (14, 14'), - wherein the second contact block (14, 14') is movable relative to the first contact block (6, 6'), - wherein the second contact block (14, 14') - connects the first terminals (8, 8') to at least one second terminal (10, 10') in a first contact position, wherein the first terminals (8, 8') are bridged in the first contact position by means of a bridge element (16) of the first contact block (6, 6') and are connected to the at least one second terminal (10, 10') via the bridge element (16), or - connects the first terminals (8') to the second terminals (10') in a first contact position, - -wherein the second contact block (14, 14') connects the first terminals (8, 8') to the third terminals (12, 12') in a second contact position.

2. Switching device according to claim 1, characterized in that - twenty or more first terminals (8, 8') and twenty or more third terminals (12, 12') are provided, and / or - one hundred or fewer first terminals (8, 8') and one hundred or fewer third terminals (12, 12') are provided, and / or - exactly forty first terminals (8, 8') and exactly forty third terminals (12, 12') are provided.

3. Switching device according to claim 2, characterized in that the first terminals (8, 8') and the third terminals (12, 12') are designed for a current of maximum 32 amps and / or for a voltage of maximum 10 kV.

4. Switching device according to claim 1, characterized in that - two or more first terminals (8, 8') and two or more third terminals (12, 12') are provided and / or - ten or fewer first terminals (8, 8') and ten or fewer third terminals (12, 12') are provided and / or - exactly three first terminals (8, 8') and exactly three third terminals (12, 12') are provided. and / or - exactly six first terminals (8, 8') and exactly six third terminals (12, 12') are provided.

5. Switching device according to claim 4, characterized in that the first terminals (8, 8') and the third terminals (12, 12') are designed for a current of at most 1000 amperes, in particular at most 600 amperes, and / or for a voltage of at most 10 kilovolts.

6. Switching device according to one of the preceding claims, characterized in that - the first terminals (8, 8') are arranged in a straight line next to each other along a longitudinal direction (L), - the third terminals (12, 12') are arranged in a straight line next to each other parallel to the first terminals (8, 8') and at a distance from the first terminals (8, 8'), and / or - the bridge element (16) has an electrically conductive strip (18), in particular that the strip (18) is arranged at a distance from the first terminals (8, 8') and the third terminals (12, 12') and extends parallel to the longitudinal direction and to the linearly arranged first and third terminals (12, 12'), and / or the first terminals (8, 8') are arranged between the strip (18) and the third terminals (12, 12').

7. Switching device according to one of the preceding claims, characterized - in that the first contact block (6, 6') has a connection side (20, 20') in the area of which the first terminals (8, 8') can be connected to a cable harness associated with a battery to be tested and in the area of which the second terminals (12, 12') can be connected to a function tester, and - in that the first contact block has a switch side (22, 22') facing away from the connection side, in the area of which the first contact block (6, 6') can be connected to the second contact block (14, 14'), and / or - in that the first terminals (8, 8') and the third terminals (12, 12') form a first mating face, and - in that terminals (24, 26) of the second contact block (14, 14') form a second mating face matching the first mating face, - so that the first terminals (8, 8') and the third terminals (12, 12') can be connected to each other simultaneously by means of the second contact block (14, 14') by moving the second contact block (14, 14') into the second contact position.

8. Switching device according to one of the preceding claims, characterized in that that the number of first terminals (8, 8') and the number of third terminals (12, 12') are identical.

9. Switching device according to claim 8, characterized in - that terminals (24, 26) of the second contact block (6, 6') have fourth terminals (24, 24') and fifth terminals (26, 26'), - the number and arrangement of which correspond to the number and arrangement of the first terminals (8, 8') and the third terminals (12, 12').

10. Switching device according to one of the preceding claims, characterized in that - the first terminals (8, 8'), the bridge element (16), and the third terminals (12, 12') are arranged at the same height when viewed along a travel path of the second contact block (14, 14'), and / or - the second contact block (14, 14') is automatically movable, in particular that a first axis (28, 28') is assigned to the second contact block (14, 14') in order to move the second contact block (14, 14') transversely to the first contact block (6, 6'), and in that a second axis (30, 30') is assigned to the second contact block (14, 14') is assigned a second axis (30, 30') in order to move the second contact block (14, 14') towards the first contact block (6, 6') to establish a plug connection and to move the second contact block (14, 14') away from the first contact block (6, 6') to disconnect the plug connection.

11. Test bench for electrical components for testing a battery, - having a high-voltage tester (40), - having a function tester (42), - wherein the function tester (42) has a source (44) and / or sink (44) for charging and / or discharging the battery (38) and / or wherein the function tester has a data interface (46) and / or a 12-volt supply (48) for controlling the battery (38) - having a switching device (2, 2') according to one of the preceding claims.

12. Test bench for electrical components for testing a battery, - having a high-voltage tester (40), - having a function tester (42), - wherein the function tester (42) has a source (44) and sink (44) for charging and discharging the battery (38) and wherein the function tester (42) has a data interface (46) and a 12-volt supply (48) for controlling the battery (38) - having a switching device (2') according to one of claims 1 to 10, which is connected to the source (44) and sink (44) and is provided for switching from the source (44) and sink (44) to the high-voltage tester (40), - having a further switching device (2) according to one of claims 1 to 10, which is connected to the data interface (46) and the 12-volt supply (48) and which is provided for switching from the data interface (48) and the 12-volt supply (48) to the high-voltage tester (40).