Connection device for internal cooling cable

Abstract

A connection device for internally cooling a cable has a cable guide section which is designed to at least partially surround at least a portion of the cable which comprises a line for an electric current and a coolant line. The connection device also has a conductor guide section which is designed to at least partially surround at least a part of the line for the current. The connecting device also has a coolant conducting section which is designed to at least partially surround at least a portion of the coolant line. The cable guide section, the conductor guide section and the coolant guide section together surround at least a portion of the interior space of the connection device. In addition, the cable guide section, the conductor guide section and the coolant guide section are formed together by at least one wall element.

Description

Technical Field

[0001] Disclosed herein is a connection device for an internal cooling cable and a connection system having a connection device and an internal cooling cable. Background Art

[0002] Internally cooled cables are known which, in addition to one or more conductors for the electric current, also comprise one or more coolant through-lines for the passage of a coolant, in particular a liquid coolant. Document DE 10 2020117 588 A1 discloses an example of a cable having a coolant line and a line for the electric current.

[0003] An advantage of internally cooled cables is that heat caused by the current or external action can be dissipated efficiently from the cable so that the resistance of the current carrying conductors does not increase.

[0004] However, a disadvantage of internally cooled cables is that they are complex to install. To this end, the current-carrying conductors must first be separated from the coolant lines of the cable and then the current-carrying conductors and the coolant lines must be connected separately from one another to the power supply and coolant supply, respectively. Here, it must be ensured in particular that the coolant, in particular the liquid coolant, cannot come into contact with the current-carrying conductors. Summary of the invention

[0005] The technical object is therefore to provide an improved connection device for an internal cooling cable which facilitates connecting the cable to power and coolant supplies and in particular ensures that the current-carrying conductors of the internal cooling cable do not accidentally come into contact with the coolant in the area of ​​the connection device.

[0006] This object is achieved by a device according to claim 1. Advantageous further developments are defined by the further claims.

[0007] A connection device for an internally cooled cable has at least one cable guide section, which is designed to at least partially surround or receive at least a part of a cable having a line for an electric current and a coolant line, in particular a cable end. The connection device also has at least one conductor guide section, which is designed to at least partially surround or receive at least a part of the line for an electric current of the internally cooled cable, and a coolant guide section, which is designed to at least partially surround or receive at least a part of the coolant line of the internally cooled cable, in particular a coolant line for a liquid or gaseous coolant. The cable guide section, the conductor guide section and the coolant guide section together at least partially surround at least a part of the interior space of the connection device.

[0008] The cable guiding section can be designed in particular to surround or receive an internally cooled cable and / or a cable end, which has an insulation and / or has a line for electric current and has a coolant line, which are not separated from each other and / or are in contact with each other in each case. The conductor guiding section can be designed in particular to surround or receive a line for electric current separated from the insulation of the internally cooled cable and / or a line for electric current separated from one or more coolant lines of the internally cooled cable, the insulation being received by the cable guiding section or at least partially surrounded. Furthermore, the coolant guiding section can be designed in particular to surround or receive a coolant line, which is separated from the insulation of the internally cooled cable, which is received by the cable guiding section or at least partially surrounded; and / or is separated from one or more lines for electric current of the internally cooled cable.

[0009] The cable guiding section, the conductor guiding section and the coolant guiding section are formed together by at least one wall element. In other words, each wall element of the connecting device forms at least a part of the cable guiding section, the conductor guiding section and the coolant guiding section.

[0010] A wall element is a device component that forms at least a portion of a wall or device outer wall that at least partially surrounds the interior space of the connection device and / or separates the interior space of the connection device from the exterior space surrounding the connection device. The wall element may have an opening or be configured without an opening.

[0011] The advantage of the connection device is that it is convenient to connect the internal cooling cable to the power supply and the coolant supply source, wherein it is particularly ensured that the line for the current of the internal cooling cable will not accidentally contact the coolant in the area of ​​the connection device. It is sufficient to separate the line for the current of the cable from the coolant line and arrange it in the conductor guide section. The coolant line of the cable can be arranged in the coolant guide section. The coolant guide section and the conductor guide section can be sections separated from each other of the connection device. The coolant line and the line for the current are therefore guided away from each other and separated from each other. At the same time, the cable end arranged in the cable guide section, the line for the current arranged in the conductor guide section, and the coolant line arranged in the coolant guide section can be mechanically fixed and electrically insulated by being accommodated in the connection device. As a result, the operability of the cable end can be improved. In addition, the connection of the line for the current to the power supply and / or the connection of the coolant line to the coolant supply source can be improved.

[0012] The connecting device can comprise two or more wall elements which together at least partially surround the interior of the connecting device and / or together form a cable guiding section, a conductor guiding section and a coolant guiding section.

[0013] In a variant, the connection device can in particular comprise two wall elements formed symmetrically to one another, which together at least partially surround the interior space of the connection device and / or together form the cable guide section, the conductor guide section and the coolant guide section. When the two wall elements are at least substantially point-symmetrical and / or mirror-symmetrical to one another, i.e., they are symmetrical to one another except for the mutually corresponding fastening means on the wall elements.

[0014] The advantage of forming the connecting device with a plurality of, in particular two, wall elements that are symmetrical to one another is that the wall elements can be efficiently produced in large quantities, for example by means of an injection molding process.

[0015] Another advantage is that it is easier to arrange the cables and / or cable ends in the connection device. If the connection device is formed, for example, by two wall elements, the cables and / or cable ends can be arranged or inserted into the first wall element together with the lines for the current and the coolant lines, and then the second wall element can be arranged on the first wall element with the cables and / or cable ends and the lines for the current and the coolant lines, so that the cables and / or cable ends are located inside the connection device together with the lines for the current and the coolant lines.

[0016] Two or more wall elements can in particular be formed as one part and / or be fastened to one another by means of hinge elements, in particular by means of film hinges.

[0017] The wall elements can further be configured to be pivotable relative to each other about a rotation axis. In other words, the wall elements formed integrally with each other and / or fastened to each other can be moved relative to each other, in particular by pivoting about a rotation axis or a hinge axis.

[0018] The advantage of this arrangement is that the manufacturing efficiency and operability of the connecting device can be further improved.

[0019] Another advantage is that it is further facilitated to arrange the wall element on or at another wall element on which the cables and / or cable ends have already been arranged beforehand together with the lines for the electric current and the coolant lines. In this case, it is sufficient to pivot or fold the wall elements of the connecting device relative to each other in order to arrange the cables and / or cable ends together with the lines for the electric current and the coolant lines in the interior space of the connecting device.

[0020] The connecting device may also comprise at least one fastening element designed to fasten two or more wall elements to each other. The fastening element may, for example, be arranged on one or more wall elements. The fastening element may, for example, be a fastening lug, a fastening protrusion, a latching element, a cable tie, an adhesive element or adhesive, rubber, a spring element or the like.

[0021] The advantage of a fastening element integrated in the connecting device for fastening two wall elements to each other is that the operability of the connecting device is further improved and the arrangement of cables and / or cable ends, lines for current, and coolant lines in the interior space of the connecting device is facilitated.

[0022] Instead of or in addition to the at least one fastening element, the connecting device may also comprise at least one centering or positioning aid, which in particular aids the precise arrangement of the wall element at or on the other wall element. The at least one centering or positioning aid may be formed, for example, by a material projection and / or a correspondingly formed material recess in one of the wall elements, which engage with one another in a form-fitting and / or materially engaging manner, in particular when the wall elements are optimally positioned relative to one another.

[0023] The connection device may optionally further comprise a sealing element. The sealing element may be arranged, for example, on a wall element and may be designed to seal the interior of the connection device against environmental influences, in particular against moisture, in particular when cables and / or cable ends have been received by the connection device together with the lines for the current and the coolant lines.

[0024] One or more wall elements may consist of a plastic production material, in particular a polymer material.

[0025] The advantage of using plastic materials is that they electrically insulate the lines for the electric current and the coolant lines. In addition, plastics are also suitable for mass production of wall elements.

[0026] The connection device can optionally include a connection element for the coolant line, which is designed to discharge coolant from the coolant line and / or introduce coolant into the coolant line.Alternatively or additionally, the connection device can also include a contact device, which is designed to make electrical contact with a line for electric current.

[0027] The advantage of a connecting element for a coolant line or a contact device for a current-carrying conductor of a cable integrated in the connecting device is that the installation or arrangement of the cable in the connecting device is facilitated. At the same time, it is facilitated to connect the connecting device to an electrical power supply and / or a coolant supply, since the connecting element and / or the contact device which may be required for this purpose is already integrated in the connecting device.

[0028] In a variant of the connecting device, the conductor guiding section can also be designed to orient or receive at least a portion of the line for the current at an angle of 45° to 90°, in particular at an angle of 45° or 90°, relative to the cable at least partially surrounded or received by the cable guiding section and / or relative to the coolant line at least partially surrounded or received by the coolant guiding section. Alternatively or additionally, the coolant guiding section can be designed to orient or receive at least a portion of the coolant line at an angle of 45° to 90°, in particular at an angle of 45° or 90°, relative to the cable at least partially surrounded or received by the cable guiding section and / or relative to the line for the current at least partially surrounded or received by the conductor guiding section.

[0029] The advantage of lines guided away from one another at an angle of 45° to 90° is that the distance between the lines for the current and the coolant lines can thus be increased, so that an unintentional contact of the lines for the current with the coolant is further prevented.

[0030] In a further development, the connection device comprises at least two cable guide sections and / or at least two conductor guide sections, wherein the at least two cable guide sections are each designed to at least partially surround or receive at least a portion of a cable having a line for current and a coolant line, and / or the at least two conductor guide sections are each designed to at least partially surround or receive at least a portion of the current line. Alternatively or additionally, the connection device may also comprise at least a first coolant guide section and a second coolant guide section, each of which is designed to at least partially surround or receive at least a portion of the coolant line, wherein the first coolant guide section is in particular designed to at least partially surround or receive a coolant feed line, and the second coolant guide section is in particular designed to at least partially surround or receive a coolant discharge line.

[0031] The advantage of a connecting device with multiple guide sections for cables, lines for current and coolant lines is that it allows efficient connection of cables or cable assemblies with more than one electrical conductor and / or multiple coolant lines, for example with coolant supply lines and with coolant discharge lines.

[0032] A connection system for internally cooled cables, comprising one of the above-described connection devices for internally cooled cables and a cable having a line for current and a line for a coolant. At least a portion of the cable is at least partially surrounded or received by the cable guide section of the connection device. Furthermore, at least a portion of the line for current is at least partially surrounded or received by the conductor guide section of the connection device, and at least a portion of the coolant line is at least partially surrounded or received by the coolant guide section of the connection device.

[0033] At least a portion of the interior space of the connecting device can be filled, in particular potted, with an in particular electrically insulating filling or potting compound.

[0034] The advantage of a filling or potting compound is that it can fix cables and / or lines for electric current and / or coolant lines in the interior of the connecting device and / or electrically and / or thermally insulate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Further features, properties, advantages and possible modifications will become clear to those skilled in the art through the following description with reference to the accompanying drawings.In the accompanying drawings, all features described and / or depicted illustrate the subject matter disclosed herein alone or in any desired combination.

[0036] The figures each show a connection device suitable for receiving an internal cooling cable.

[0037] Figure 1 An example of a connection arrangement for an internal cooling cable is shown.

[0038] Figure 2 An example of a wall element for a connection device for an internal cooling cable is shown.

[0039] Figure 3 The arrangement of the internal cooling cables in the wall elements of the connection device is shown.

[0040] Figure 4 The arrangement of the internal cooling cables in the connection device is shown. DETAILED DESCRIPTION

[0041] Unless otherwise expressly stated, Figures 1 to 4 In the drawings, parts and components that correspond or are equivalent in their functions are provided with corresponding reference numerals.

[0042] Figure 1 An example of a connection device 100 is shown having a cable guiding section 10 which is designed to receive and at least partially surround at least a portion of an internal cooling cable, for example a cable end.

[0043] Figure 1 It is further shown that the connection device 100 has a conductor guiding section 20 and a coolant guiding section 30. The cable guiding section 10, the conductor guiding section 20 and the coolant guiding section 30 together surround the interior space of the connection device 100. In other words, the cable guiding section 10, the conductor guiding section 20 and the coolant guiding section 30 together form a connection device 100, which has an interior space surrounded by wall elements except for openings for cables, coolant lines and lines for electric current.

[0044] Figure 1The conductor guide section 20 shown in the drawing is designed to receive and at least partially surround a line for electric current, which is separated from the coolant line of the internal cooling cable. The coolant guide section 30 also shown is designed to receive and at least partially surround the coolant line of the internal cooling cable, from which the electric line of the internal cooling cable has been separated.

[0045] The conductor guide section 20 and the coolant guide section 30 each electrically insulate the corresponding received and at least partially surrounded lines and guide them away from each other. In the example shown, the lines are guided away from each other at an angle of approximately 45° relative to each other. However, in other embodiments (not shown), the conductor guide section 20 and the coolant guide section 30 can also guide the corresponding received lines away from each other at different angles (for example, at an angle of approximately 90°).

[0046] The cable guide section 10, the conductor guide section 20 and the coolant guide section 30 all have a circular cross section. However, this is not necessary in all embodiments. In other embodiments (not shown), the cable guide section, the conductor guide section and / or the coolant guide section can also have, for example, an elliptical cross section.

[0047] Figure 1 The connecting device 100 shown comprises two wall elements 40, 50, which are Figure 2 is shown in more detail in .

[0048] Figure 2 It is shown that two wall elements 40 , 50 are each designed symmetrically with respect to one another, which together form the cable guiding section 10 , the conductor guiding section 20 and the coolant guiding section 30 and which together form the interior of the cable guiding device 100 .

[0049] The two wall elements 40, 50 shown can be produced separately from one another and connected together to form Figure 1 The connecting device 100 shown. To this end, Figure 2 The wall elements 40, 50 and Figure 1 The connecting devices 100 shown each comprise a receiving recess for a fastening element, wherein the receiving recesses are arranged at the ends of the cable guide section 10, the conductor guide section 20 and the coolant guide section 30. The wall elements 40, 50 can be connected by means of fastening elements ( Figure 1 and Figure 2 ) are fixed to each other.

[0050] Figure 3The arrangement of an internally cooled cable K is shown, which has a line S for current and a coolant line L on a first wall element 40. The cable K is stripped of insulation at one cable end and is at least partially arranged on the wall element 40. The line S for current is separated from the coolant line L in the region of the stripped cable K and is likewise arranged on the first wall element 40. The line S for current and the coolant line L are each arranged on the section of the wall element 40 which forms the conductor guide section 20 and the coolant guide section 30 after the first wall element 40 has been connected to the second wall element 50.

[0051] like Figure 4 As shown, after the second wall element 50 has been fastened to the first wall element 40, Figure 3 The arrangement shown forms a connection system for an internally cooled cable K having a line S for an electric current and having a coolant line L. At least a portion of the cable K, i.e. the cable end, is at least partially surrounded by a cable guide section 10 of a connection device 100, which comprises two wall elements 40, 50. At least a portion of the line S for an electric current is at least partially surrounded by a conductor guide section 20 of the connection device 100, and at least a portion of the coolant line L is at least partially surrounded by a coolant guide section 30 of the connection device 100.

[0052] Figure 4 It is further shown that the two wall elements 40 , 50 are fixed to one another by means of fastening elements, wherein the fastening elements are each arranged in a receiving groove at one end of the cable guiding section 10 , the conductor guiding section 20 and the coolant guiding section 30 .

[0053] It should be understood that the exemplary embodiments explained above are not exhaustive and do not limit the subject matter disclosed herein. In particular, it will be apparent to those skilled in the art that, without departing from the subject matter disclosed herein, he may combine the described features with each other and / or may omit various features as desired.

Claims

1. A connection device (100) for an internal cooling cable, comprising: A cable guide section (10) which is designed to at least partially surround at least a portion of a cable (K) having a line (S) for an electric current and a coolant line (L), and a conductor guide section (20) which is designed to at least partially surround at least a part of a line for an electric current of a cable at least partially surrounded by the cable guide section, and a coolant guide section (30) which is designed to at least partially surround at least a portion of a coolant line of a cable at least partially surrounded by the coolant guide section, in, The cable guiding section, the conductor guiding section and the coolant guiding section together at least partially surround at least a part of the interior space of the connecting device, and Therein, the cable guiding section, the conductor guiding section and the coolant guiding section are formed together by one or more wall elements.

2. The connection device (100) according to claim 1, wherein The connecting device comprises two or more wall elements (40, 50) which together at least partially surround an interior space of the connecting device and / or together form the cable guiding section (10), the conductor guiding section (20) and the coolant guiding section (30).

3. The connection device (100) according to claim 1 or 2, wherein The connecting device comprises two wall elements (40, 50) which are symmetrical to one another and which together at least partially surround an interior space of the connecting device and / or together form the cable guide section (10), the conductor guide section (20) and the coolant guide section (30).

4. The connection device (100) according to claim 2 or 3, wherein The wall elements (40, 50) are formed in one piece and / or are fastened to one another by hinge elements, in particular by film hinges, and / or The wall elements (40, 50) are configured to be pivotable relative to one another about a rotation axis.

5. The connection device (100) as claimed in any one of the preceding claims, wherein The wall element or wall elements (40, 50) consist of a plastic production material, in particular a polymer material.

6. The connection device (100) according to any one of the preceding claims, further comprising: A connecting element for a coolant line, which is designed to discharge coolant from the coolant line and / or to feed coolant into the coolant line, and / or a contact device designed to make electrical contact with a line for an electric current, and / or At least one fastening element designed to fasten two or more wall elements (40, 50) to each other.

7. The connection device (100) according to any one of the preceding claims, wherein The conductor guide section (20) is also designed to orient at least a portion of the line (S) for the current at an angle of 45° to 90°, in particular 45° or 90°, relative to the cable (K) at least partially surrounded by the cable guide section (10) and / or relative to the coolant line (L) at least partially surrounded by the coolant guide section (30), and / or The coolant guide section (30) is also designed to orient at least a portion of a coolant line (L) at an angle of 45° to 90°, in particular at an angle of 45° or 90°, relative to a cable (K) at least partially surrounded by the cable guide section (10) and / or relative to a line (S) for electric current at least partially surrounded by the conductor guide section (20).

8. The connection device (100) according to any one of the preceding claims, further comprising: at least two cable guiding sections, each of which is designed to at least partially surround at least a part of a cable having a line for an electric current and a coolant line, and / or at least two conductor guide sections, each of which is designed to at least partially surround at least a part of a line for an electric current, and At least a first coolant guiding section and a second coolant guiding section, each of which is designed to at least partially surround at least a portion of a coolant line, wherein the first coolant guiding section is particularly designed to at least partially surround a coolant supply line and the second coolant guiding section is particularly designed to at least partially surround a coolant discharge line.

9. A connection system for an internal cooling cable, comprising: A connection device (100) for an internal cooling cable according to any one of the preceding claims, and An internal cooling cable (K) having a line for current (S) and a coolant line (L), wherein At least a portion of the cable (K) is at least partially surrounded by the cable guiding section (10) of the connecting device, and wherein At least a portion of the line (S) for electric current is at least partially surrounded by the conductor guide section (20) of the connecting device, and wherein At least a portion of the coolant line (L) is at least partially surrounded by the coolant guiding section (30) of the connecting device.

10. A connection system according to the preceding claim, wherein At least a portion of the interior space of the connection device (100) is filled, in particular potted, with an in particular electrically insulating filling compound, and / or wherein The filling compound fixes the cable (K) and / or the line (S) and / or the coolant line (L) in the interior space of the connection device.

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