Fastening device for battery terminal and battery terminal

Abstract

To provide a clamping device for a battery terminal, and the battery terminal.SOLUTION: A battery-purpose battery terminal 10 within a vehicle has: a clamping piece 12 for a battery electrode 16 of a vehicle battery; and an interruption part that has mutually facing edge parts 22 and 24 surrounding a cylindrical receiving space 14 at least partially. A clamping device 20 can engage with the mutually facing edge parts 22 and 24, and move these edge parts toward each other in order to clamp the clamping piece 12 to the battery electrode 16. The clamping device 20 includes an interruption mechanism 48, and is movable from an interruption position where an operation of the clamping device 20 like the edge parts 22 and 24 move mutually toward each other is disabled to an interruption release position where an operation like the edge parts 22 and 24 move mutually toward each other is enabled, and the interruption mechanism 48 is energized by a spring in the interruption position. A block element 52 is provided that can block the interruption mechanism 48 in the interruption release position.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a clamping device for a battery terminal, in particular for a battery in a vehicle, and to a battery terminal equipped with such a clamping device. [Background technology]

[0002] Battery terminals are used in vehicles to establish a safe electrical connection between a vehicle battery and the vehicle's electrical circuit. The battery terminal has clamping pieces that have substantially cylindrical receiving spaces for the battery electrodes of the vehicle battery, and connections for the vehicle's electrical circuit are provided on the clamping pieces. Furthermore, sensors for detecting the state of the vehicle battery, particularly battery sensors or current sensors, can be integrated into such battery terminals. The clamping pieces are typically interrupted in the circumferential direction, with a clamping device provided at the interruption for reducing the circumferential length of the clamping pieces. In this case, the battery terminal can be clamped and fixed to the battery electrodes by reducing the circumferential length of the clamping pieces.

[0003] To ensure a reliable mechanical and electrical connection to the battery poles, the battery terminals must be fully pressed against the battery poles. For this purpose, the prior art has taught, for example, that if the clamping pieces are not fully pressed against the battery poles, the clamping device rock or otherwise prevent the clamping device from operating. rock The mechanism is known.

[0004] for example, rock The mechanism protrudes beyond the fastening piece in the installation direction in which the fastening piece is pressed against the battery terminal, and this rock The clamping device is rock If the battery terminal is pressed against the battery pole, rockThe mechanism fits snugly against the base of the battery electrode or electrode recess, thereby preventing the rock It is moved to the release position. rock In the released position, the clamping device can be activated and / or a clamping force can be applied to the clamping piece, ensuring that the battery terminal is fully pressed against the battery electrode before the clamping device is activated to secure the battery terminal to the battery electrode.

[0005] However, from the prior art, due to the shape of the battery electrodes or electrode recesses, rock The desired mechanism rock Batteries are known that have battery electrodes or electrode recesses that cannot be moved to a release position. Furthermore, this feature may not be desirable depending on the process for attaching the battery electrodes to the battery. Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide a clamping device for a battery terminal, and a battery terminal equipped with such a clamping device, which allows greater flexibility when attaching the battery terminal to a battery, in particular a vehicle battery. [Means for solving the problem]

[0007] To achieve this object, a clamping device for a battery terminal, in particular for a battery in a vehicle, is provided, in which the battery terminal has clamping pieces for the electrodes of a vehicle battery, the clamping pieces at least partially surrounding a receiving space, in particular a substantially cylindrical receiving space, for the battery electrodes of the battery and having circumferentially intervening portions with mutually facing edges, the clamping device being able to engage with the mutually facing edges and move the edges towards each other in order to clamp the clamping pieces to the battery electrodes. rock equipped with a mechanism rock The mechanism does not allow the clamping device to be operated such that the clamping edges move towards each other. rock From this position, the clamping device can be actuated so that the clamping edges move towards each other. rock It is movable to a release position, rock The mechanism is rock It is spring biased in position. rock Mechanism rock A blocking element is provided which can be blocked in a release position.

[0008] The present invention can be selectively activated or deactivated rock This is based on the idea that the mechanism is provided in the tightening device. Therefore, before installing the battery terminal, rock mechanism should be used, or based on, for example, the shape of the battery electrodes or the chosen attachment method. rock Therefore, in principle, the battery terminal rock However, rock The mechanism can be released by a blocking element, which allows for greater flexibility when installing the battery terminal.

[0009] rockThe mechanism has, for example, an actuating element that is displaceable in the longitudinal direction of the receiving space, in particular in the direction opposite to the mounting direction in which the clamping piece is pressed against the battery electrode, and the blocking element engages with the actuating element. This actuating element is usually in close contact with the base of the electrode recess or the base of the battery electrode, and moves in the opposite direction to the mounting direction when the clamping piece is further pressed, thereby rock The mechanism is rock Move to the release position. Blocking of this actuating element or rock By holding it in the release position, rock The mechanism can be released simply and effectively.

[0010] The clamping device includes a first clamping element movable in a direction opposite to the mounting direction, and a second clamping element, the second clamping element engaging with the first clamping element and movable in a direction opposite to the mounting direction; rock In the position, there is no frictional connection between the first clamping element and the second clamping element, rock In the released position, a frictional connection exists between the first and second clamping elements. In such an embodiment, the first clamping element is held by the blocking element in a position that allows a frictional connection between the first and second clamping elements.

[0011] The first clamping element can have, for example, an actuating surface by means of which the first clamping element can cooperate with the legs at the edges of the clamping pieces and press the edges towards each other.

[0012] For example, the first and second clamping elements are provided with corresponding internal and external threads, rock Alternatively, the first and second clamping elements may be configured to engage with each other only in the release position. rock Interlocking force transmission structures may also be provided which only engage in the unlocked position. rock The mechanism rock When in position, the clamping device can be operated, but no clamping occurs on the battery electrodes because there is no frictional coupling.

[0013] In this embodiment, the actuation element may be coupled to or formed by the first tightening element; rock The mechanism may be formed by a first clamping element and a second clamping element.

[0014] For example, the actuating element, in particular the first clamping element, has a bolt extending in particular in the longitudinal direction, and the blocking element engages with this bolt. rock In the release position, it can protrude beyond other components of the clamping device, such as the second clamping element, rock In this position, the bolt is spring-loaded so that it does not protrude beyond the other components of the clamping device. rock The blocking element can be adapted to engage with the bolt only in the release position. Furthermore, the blocking element or the bolt can be configured in such a way that the blocking element engaging with the bolt is pressed against and supported by other components of the clamping device by a spring force, thereby providing additional fixation of the blocking element to the actuating element, i.e., the control device.

[0015] In particular, block elements: rock It is a separate part that can be removed if release of the mechanism is not desired.

[0016] For example, the blocking element may have a locking mechanism by which it is locked to the actuating element. Optionally, other locking mechanisms may be provided by which it is locked to the actuating element or rock It can be securely fixed to the mechanism.

[0017] Furthermore, the blocking element may be provided with a retaining means for fastening the blocking element to the battery terminal, in particular to the fastening tabs of the battery terminal, such that the blocking element can be easily fastened to the battery terminal, in particular to the fastening tabs of the battery terminal, and transported and / or mounted together with the battery terminal.

[0018] For example, the block element has an adapter ring, and the adapter ring has an outer circumferential surface for closely contacting the inside of the fastening piece of the battery terminal and an inner circumferential surface for closely contacting the battery electrode, the outer periphery of the outer circumferential surface substantially corresponds to the inner periphery of the fastening piece of the battery terminal, and the inner periphery of the inner circumferential surface is smaller than the outer periphery of the outer circumferential surface, and when the adapter ring is installed in the fastening piece of the battery terminal, rock Mechanism rock Such adapter rings are used, for example, to reduce the inner diameter of the fastening piece, so that the battery terminal can be attached to a battery electrode with a smaller diameter. When the diameter of the battery electrode is smaller, the seat of the battery electrode can also have a smaller diameter, so that rock The mechanism cannot come into close contact with the base of the battery electrode, thereby rock The mechanism rock Unable to reach the release position. For example, rock The mechanism may be too far away in the radial direction with respect to the receiving space for the battery electrodes of the battery terminal due to the close contact with the base part. rock The mechanism is rock In the unlocked position, the blocking element can be blocked by the adapter ring, which is necessary for mounting on the small-diameter battery terminals, and is not activated by the small-diameter battery terminals. rock The mechanism, at the same time, rock This provides the advantage of being able to move to and remain in the released position, thereby greatly simplifying installation of the battery terminal.

[0019] Preferably, the adapter ring has a sealing surface, and the sealing surface rock The mechanism is tightly fitted, particularly in the direction of the longitudinal axis of the receiving space, and the fitting surfaces are such that, when the adapter ring is mounted in the fastening piece of the battery terminal, rock Mechanism rockIn the unlocked position, the blocking element projects radially outward, particularly with respect to the receiving space, or the contact surface extends radially outward. The contact surface is provided to some extent on the seat of the battery electrode, usually rock It functions as a contact surface against which the mechanism abuts. rock No measures are necessary in the mechanism, in particular in the battery terminals, to ensure the function of the blocking elements.

[0020] In particular, retaining means, in particular locking means, for fixing the adapter ring to the fastening pieces of the battery terminal can be provided on the adapter ring, by which means the adapter ring is fixed to the battery terminal, whereby the blocking element rock In the release position rock Blocking mechanism.

[0021] Preferably, the retaining means fixes the adapter ring in the clamping piece in the direction of the longitudinal axis of the receiving space.

[0022] Block elements are rock It may be formed as part of the mechanism and / or may be, for example, rock If permanent release of the mechanism is desired, rock It may also be integrally connected to part of the mechanism, in particular to the bolt.

[0023] In order to achieve the above object, a battery terminal, in particular for a battery in a vehicle, is further provided, which comprises a clamping piece for a battery electrode of a vehicle battery, wherein the clamping piece at least partially surrounds a receiving space, in particular a substantially cylindrical receiving space, for the battery electrode of the battery and has an interruption with edges facing each other in the circumferential direction, and a clamping device as described above, which engages with the mutually facing edges and can move the edges towards each other to clamp the clamping piece to the battery electrode.

[0024] Further advantages and features will become apparent from the following description taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is an external view of a battery terminal equipped with a tightening device according to the present invention; [Figure 2] 2 is a partial perspective view of the battery terminal according to FIG. 1; [Figure 3] FIG. 3 is a detailed view of the locking mechanism of the battery terminal according to FIG. 2. [Figure 4] FIG. 4 shows the locking mechanism of FIG. 3 with a blocking element attached. [Figure 5] 3 is a detailed view of a further embodiment of the locking mechanism of the battery terminal according to FIG. 2. FIG. [Figure 6] 1 with a further embodiment of the blocking element; [Figure 7] FIG. 7 shows a second view of the battery terminal according to FIG. 6. [Figure 8] FIG. 7 shows a third view of the battery terminal according to FIG. 6. [Figure 9] FIG. 7 shows a fourth view of the battery terminal according to FIG. 6. [Figure 10] 7 shows a block element of the battery terminal according to FIG. 6. FIG. [Figure 11] 7 shows the battery terminal according to FIG. 6 with a part of the housing. DETAILED DESCRIPTION OF THE INVENTION

[0026] 1 shows a battery terminal 10 for a vehicle battery in a vehicle. The battery terminal 10 has a cylindrical and / or conical clamping piece 12, only a portion of which is shown here, which has a receiving space 14 for a battery electrode. In the circumferential direction U, the clamping piece 12 has an interruption 18 on which a clamping device 20 is provided. By means of the clamping device 20, edges 22, 24 of the interruption can be moved towards each other in order to clamp the clamping piece 12, and thus the battery terminal 10, to the battery electrode.

[0027] The clamping device 20 includes a first clamping element 26 and a second clamping element 28. The first clamping element 26 has two actuating surfaces 30, 32 that face each other and extend inclined away from each other in a direction opposite to the mounting direction M in which the clamping piece 12 is pressed against the battery electrode. The actuating surfaces 30, 32 can be in close contact with legs 34, 36 that extend substantially radially outward from the edges 22, 24, respectively, and can press these legs 34, 36 toward each other when the first clamping element 26 moves in a direction opposite to the mounting direction M. This reduces the perimeter of the clamping piece 12, thereby clamping the clamping piece 12 to the battery electrode 16. The first clamping element 26 also has a bolt 38 that extends in a direction opposite to the mounting direction M.

[0028] The second clamping element 28 has a torque transmission molding 40 that can be acted upon by a tool for actuating the clamping device 20. Furthermore, the second clamping element has a bore 42 through which the bolt 38 extends.

[0029] The second tightening element 28 has an internal thread inside the bore 42. The first tightening element 26 has an external threaded portion 44 on the outside that has an external thread corresponding to the internal thread, and an adjacent unthreaded portion 46 opposite the mounting direction M (see FIG. 2).

[0030] The second clamping element 28 is supported on the legs 34, 36 in the mounting direction M. The first clamping element 26 is supported on the legs 34, 36 in the direction opposite to the mounting direction M, as shown in FIGS. rockposition, the actuation faces 30, 32 are spaced apart from the legs 34, 36, and the unthreaded portion 46 of the bolt 38 is located in the area of ​​the internal threads of the second tightening element 28. Thus, the threads 44 of the bolt 38 are rock In this position, the first clamping element 26 is not engaged with the internal threads of the second clamping element 28. Therefore, when the second clamping element 28 is actuated, no force is applied to the first clamping element 26, and therefore no clamping of the battery terminal 10 to the battery pole occurs.

[0031] As can be seen in FIG. 2, the end of the bolt 38 is enlarged to prevent the bolt 38 from falling out of the second clamping element 28 and becoming lost.

[0032] The first clamping element 26 is arranged opposite to the mounting direction M. rock From the position shown in Figures 3 and 4 rock When moved to the release position, the threads 44 engage the internal threads of the second clamping element 28. As the second clamping element 28 rotates, the first clamping element 26 is pulled by the interlocking threads in a direction opposite to the mounting direction M, causing the actuating surfaces 30, 32 to come into intimate contact with the legs 34, 36 and press them toward each other.

[0033] For example, when the clamping piece 12 is pressed against the battery electrode 16 in the mounting direction M, the first clamping element comes into close contact with the base of the electrode recess or the seat of the battery electrode 16, and when the clamping piece 12 is further pressed against the mounting direction M, rock It is pushed into the release position.

[0034] The first clamping element 26 and the second clamping element 28 are both rock This forms a mechanism 48. rock The mechanism 48 allows the battery terminal 10 or the clamping piece 12 to be clamped to the battery electrode 16 only when the battery terminal 10 is fully pressed against the battery electrode 16. When the first clamping element 26 moves in the direction opposite to the mounting direction M, rock Mechanism 48 rock From position rock An actuating element is provided that can be moved to a release position.

[0035] As can be seen particularly in FIGS. 3 and 4, the bolt 38, or the enlarged portion 50 at the end of the bolt 38, rock In the release position it protrudes from the second clamping element 28 .

[0036] Bolt 38 or rock Mechanism 48 rock 3 and 4 can be inserted between the enlarged diameter portion 50 of the bolt end and the second tightening element 28. The blocking element 52 is supported by the enlarged diameter portion 50 and the second tightening element 28 and prevents the bolt 38 and thus the first tightening element 26 from being displaced in the installation direction M. rock To move to a position prevention do.

[0037] This means, for example, rock Mechanism 48 rock To move to the release position rock This may be necessary if a surface or other device capable of interacting with mechanism 48 is not present on the battery, particularly on battery electrode 16. Optionally, rock Mechanism 48 rock A non-functional battery terminal 10 may also be desired, so rock The mechanism 48 is easily released by the blocking element 52 .

[0038] after that, rock When the mechanism 48 is to be operated again, the blocking element 52 can simply be pulled away, whereby the first clamping element 26 is again spring-biased. rock You can move to the location.

[0039] In this embodiment, the blocking element 52 is formed as a ring-shaped element that can be easily pressed against the side of the bolt 38 or easily removed from the bolt 38. In particular, the blocking element 52 is formed so as to be locked onto the bolt 38 and thereby non-detachably held thereto.

[0040] Unlike the present embodiment, the block element 52 is rock Mechanism 48 rock It may also be formed in any other way to lock it in the release position. rock If the mechanism 48 has a different configuration, a different blocking element 52 may be provided. rock Mechanism 48 rock It is sufficient that the lever can be held or fixed in the release position.

[0041] Figure 5 shows an embodiment that essentially corresponds to the embodiment shown in Figures 3 and 4. In contrast to the reversibly attachable or detachable blocking element 52 of Figures 3 and 4, the blocking element 52 of this embodiment is formed by an enlarged diameter portion 50 or deformation of the end of the bolt 38. The end of the bolt 38 is formed so that the threaded portion 44 of the first clamping element permanently engages the internal thread of the second clamping element 28, i.e. rock It is deformed to bear against the second clamping element 28 so that it is permanently held in the released position. rock The mechanism 48 is permanently released, for example after the battery terminal is manufactured. rock This can be done when the mechanism 48 is no longer needed.

[0042] 6 to 11 show a second embodiment of the battery terminal 10 with a blocking element 52. The battery terminal 10, in particular rock The clamping device 20 with the mechanism 48 corresponds to the embodiment shown in FIG.

[0043] The block element 52 is here part of an adapter ring 54, which is used to reduce the inner diameter of the fastening piece 12. As can be seen particularly in Figures 7 and 9, the adapter ring 54 has an outer peripheral surface 56, the outer periphery of which corresponds substantially to the inner periphery of the fastening piece 12. Furthermore, the adapter ring 54 has an inner peripheral surface 58 for intimate contact with the smaller diameter battery electrode 16. Thus, the periphery of the inner peripheral surface corresponds substantially to the outer periphery of the smaller diameter battery electrode 16.

[0044] Between the inner circumferential surface 58 and the outer circumferential surface 56, a plurality of adapter elements 60 are provided, which in the illustrated embodiment are evenly distributed in the circumferential direction U. Each adapter element 60 extends from the inner circumferential surface 58 to the outer circumferential surface 56 and is formed so as to be deformable, in particular plastically or elastically, in the radial direction relative to the receiving space 14. In particular, the adapter elements 60 are softer than the battery electrodes 16, for example by being made of a material softer than the material of the battery electrodes 16. For example, the adapter elements 60 are made of copper or a copper alloy.

[0045] The adapter element 60 extends in the direction of the cylindrical longitudinal axis L of the receiving space 14 over substantially the entire length of the receiving space 14 or of the clamping piece 12. The adapter ring 54 therefore also extends in the direction of the cylindrical longitudinal axis L over the entire receiving space 14.

[0046] The adapter elements 60 are connected to one another in the circumferential direction U by a plurality of support elements 62, wherein the support elements 62 are arranged radially outwardly on the adapter ring 54, i.e., form part of the outer circumferential surface 56.

[0047] As can be seen particularly in FIGS. 7 and 8, the inner periphery 58 is interrupted between the adapter elements 60.

[0048] The adapter ring 54 can be inserted and fixed onto the clamping pieces 12 of the battery terminal 10. For this purpose, the adapter ring 54 is provided with retaining means 64, which engage with the upper edges of the clamping pieces 12 in the direction of the longitudinal axis L, with reference to Figure 6. Alternatively, the retaining means 64 can also be formed differently, for example, so as to protrude radially outward and engage in corresponding grooves in the clamping pieces 12.

[0049] In particular, the adapter rings can be differently configured, e.g., rigid, or have different circumferential distances between the inner circumferential surface 58 and the outer circumferential surface 56, which can affect the position of the battery terminal 10 on the battery electrode 16.

[0050] In particular, the adapter ring 54 is attached to the fastening piece 12 so as to be non-detachably secured within the fastening piece 12. This allows the adapter ring 54 to be transported and installed together with the battery terminal 10 without requiring additional steps to secure or adjust the position of the adapter ring 54.

[0051] When the battery terminal 10 with the adapter ring 54 attached is attached to a battery electrode 16 with a small diameter, the inner peripheral surface 58 of the adapter ring 54 comes into close contact with the battery electrode 16. By operating the fastening device 20, the battery terminal 10 or the fastening pieces 12 of the battery terminal 10 can be fastened to the battery electrode 16. At this time, the adapter ring 54 comes into close contact with the battery electrode 16 and the fastening pieces 12 of the battery terminal 10, thereby compensating for the difference in diameter between the battery electrode 16 and the fastening pieces 12.

[0052] The blocking element 52 is provided at the end of the adapter ring 54 opposite the holding means 64 with respect to the longitudinal axis L, i.e., at the lower end of the adapter ring 54 with respect to FIG. 6. As can be seen in particular in FIGS. 6 to 8, the blocking element 52 is formed by two protrusions extending radially from the adapter ring 54. The radial lengths of these protrusions are configured in such a way that when the adapter ring 54 is attached to the clamping piece 12 or pushed in the direction of the longitudinal axis L, they overlap with the first clamping element 26 in the direction of the longitudinal axis L. The overlap occurs when the contact surface 66 of the blocking element 52 comes into contact with the first clamping element 26 and when the adapter ring 54 is further pushed into the clamping piece 12, the first clamping element 26 is pushed in the direction of the longitudinal axis L. rock From position rock It is shaped to push it into the release position.

[0053] In particular, the radial length of these protrusions is configured so that operation of the first clamping element 26 is possible in any case, for example even in the event of tolerances or deviations associated with the manufacture of the first clamping element 26.

[0054] 11 illustrates, for example, the battery terminal shown in FIGS. 6-9 with a portion of the housing 68. A gap 70 exists between the first clamping element 26 and the housing 68, and this gap 70 allows or restricts radial movement of the first clamping element 26 relative to the receiving space 14. The overlap of the protrusions is greater than the radial width of the gap 70, so that sufficient overlap between the protrusions and the first clamping element 26 always exists, even when the first clamping element 26 moves radially outward.

[0055] The holding means 64 prevents the adapter ring 54 inserted into the fastening piece 12 from moving in the direction of the longitudinal axis L. rock As a result, the inserted adapter ring 14 rock The mechanism 48 continues to operate until the adapter ring is removed from the fastening piece 12. rock Blocked in release position.

[0056] The combination of the block element 52 and the adapter ring 54 may, for example, be suitable for the battery electrodes, in particular for the base of the battery electrodes or for the battery itself, due to the small diameter of the battery electrodes. rock It is advantageous if there is no contact surface that the mechanism 48 can contact. rock Mechanism 48 rock To move it to the release position, or rock To block in the release position, rock The mechanism 48 is closely related. Therefore, the block element 52 is rock For the operation of the mechanism 48, it takes the place of the intimate contact surfaces provided on the battery, in particular on the battery electrodes.

[0057] Regardless of the embodiment shown, the block element 52 provided on the adapter ring 54 can be configured differently, so that, upon attachment to the battery terminal 10, the block element 52: rock When the adapter ring 54 is fully installed, engaging or fitting the mechanism, rock The mechanism rock As long as it is blocked in the unlocked position. The present application relates to the invention described in the claims, but also includes the following as other aspects. 1. A clamping device (20) for a battery terminal (10), in particular for a battery terminal (10) for a vehicle battery, the battery terminal (10) having a clamping piece (12) for a battery electrode (16) of a vehicle battery, the clamping piece (12) at least partially surrounding a receiving space (14), in particular a substantially cylindrical receiving space (14), for the battery electrode (16) of the battery and having an interruption in the circumferential direction (U) with edges (22, 24) facing each other, the clamping device (20) engages the opposing edges (22, 24) and can move the edges toward each other to clamp the clamping piece (12) to the battery electrode (16); The fastening device (20) is rock A mechanism (48) is provided, rock The mechanism prevents the clamping device (20) from operating so that the edges (22, 24) move toward each other. rock From this position, the clamping device (20) can be actuated so that the edges (22, 24) move towards each other. rock It is movable to a release position, The aforementioned rock The mechanism (48) is rock In a clamping device (20), the clamping device (20) is spring-biased in a position The aforementioned rock The mechanism (48) rock A clamping device (20) characterized in that it is provided with a blocking element (52) that can be blocked in a release position. 2. The aforementioned rock The clamping device of claim 1, wherein the mechanism (48) has an actuating element that is displaceable in the direction opposite to the mounting direction (M) in which the clamping piece (12) is pressed against the battery electrode (16), particularly in the longitudinal axis direction of the receiving space (14), and the blocking element (52) engages with the actuating element. 3. The fastening device (20) is a first tightening element (26) movable in the opposite direction to the mounting direction (M); a second tightening element (28) that engages with the first tightening element (26) and is capable of moving the first tightening element in a direction opposite to the mounting direction (M); The aforementioned rock In the position, there is no frictional connection between the first clamping element (26) and the second clamping element (28), The aforementioned rock The clamping device according to claim 2, wherein in the release position, a frictional connection is created between the first clamping element (26) and the second clamping element (28). 4. 3. The clamping device according to claim 3, wherein the first clamping element (26) has actuating surfaces (30, 32) by means of which the first clamping element (26) can cooperate with the legs at the edges (30, 32) and press the edges towards each other. 5. The first tightening element (28) has in particular a longitudinally extending bolt (38), 5. The fastening device according to claim 3 or 4, wherein the block element (52) engages with the bolt (38). 6. 6. The fastening device according to any one of 1 to 5 above, wherein the block element (52) is a separate part. 7. 7. The fastening device according to any one of the above 1 to 6, wherein the block element (52) has a locking mechanism, and the locking mechanism locks the block element (52) to the operating element. 8. 8. The fastening device according to claim 6 or 7, characterized in that the block element (52) is provided with a retaining means (64) for fixing the block element (52) to the battery terminal (10), in particular to the fastening piece (12) of the battery terminal (10). 9. The block element (52) has an adapter ring (54), The adapter ring (54) has an outer peripheral surface (56) for tightly contacting the inside of the fastening piece (12) and an inner peripheral surface (58) for tightly contacting the battery electrode (16), The outer periphery of the outer periphery surface (36) substantially corresponds to the inner periphery of the fastening piece (12), and the inner periphery of the inner periphery surface (58) is smaller than the outer periphery of the outer periphery surface (36); The block element (52) is configured to: rock The mechanism (48) rock 9. The fastening device of claim 8, characterized in that it blocks in a release position. 10. The adapter ring (54) is provided with a sealing surface (66), and the sealing surface is rock The mechanism (48) is tightly fitted, particularly in the direction of the longitudinal axis (L) of the receiving space (14), and the fitting surface is such that when the adapter ring (54) is mounted in the fastening piece (12) of the battery terminal (10), rock The mechanism (48) rock Block in unlocked position, 10. The clamping device according to claim 9, wherein the block element (52) projects radially outward, in particular with respect to the receiving space (14). 11. 11. The fastening device according to claim 9 or 10, characterized in that the adapter ring (54) is provided with a retaining means (64), in particular a locking means, for fixing the adapter ring (54) to the fastening piece (12) of the battery terminal (10). 12. 12. The fastening device according to claim 11, wherein the holding means (64) is capable of fixing the adapter ring (54) within the fastening piece (12) in the direction of the longitudinal axis (L) of the receiving space (14). 13. 13. The fastening device according to any one of claims 1 to 12, wherein the block element (52) is integrally connected to the bolt (38). 14. A battery terminal (10), particularly for a battery in a vehicle, comprising: A fastening piece (12) for a battery electrode (16) of a vehicle battery, wherein the fastening piece (12) has an interruption (18) at least partially surrounding a receiving space (14), in particular a substantially cylindrical receiving space (14), for the battery electrode (16) of the battery and having edges (22, 24) facing each other in a circumferential direction (U), and a fastening device (20) according to any one of 1 to 13 above, The clamping device (20) engages the opposing edges (22, 24) and can move the edges toward each other to clamp the clamping piece (12) to the battery electrode (16), battery terminal (10). [Explanation of symbols]

[0058] 10 Battery terminal 12 Fastening piece 14 Reception Space 16 Battery Electrodes 20 Fastening device 22 Edge 24 Edge 26 first tightening element 28 Second tightening element 30 Working Surface 32 Working surface 38 volts 48 rock mechanism 52 Block Elements 54 Adapter ring 56 Outer surface 58 Inner surface 64 Holding means 66 Close Contact L Longitudinal axis M Installation direction U circumferential direction

Claims

1. A fastening device (20) for a battery terminal (10) for a battery in a vehicle, the battery terminal (10) having a fastening piece (12) for a battery electrode (16) of a vehicle battery, the fastening piece (12) at least partially surrounding a receiving space (14) for the battery electrode (16) of the battery and having an interrupted portion in a circumferential direction (U) having edges (22, 24) facing each other, the clamping device (20) engages the opposing edges (22, 24) and can move the edges toward each other to clamp the clamping piece (12) to the battery electrode (16); the clamping device (20) includes a locking mechanism (48) that is movable from a locked position in which the clamping device (20) cannot be operated such that the edges (22, 24) move toward each other to an unlocked position in which the clamping device (20) can be operated such that the edges (22, 24) move toward each other; In a clamping device (20), the locking mechanism (48) is spring-biased in the locked position, A clamping device (20) characterized in that a blocking element (52) is provided which can block the locking mechanism (48) in the unlocked position from moving to the locked position.

2. The locking mechanism (48) has an actuating element displaceable in the longitudinal axis direction of the receiving space (14) opposite to an installation direction (M) in which the fastening piece (12) is pressed against the battery electrode (16), 2. A clamping device according to claim 1, characterized in that the blocking element (52) engages with the actuating element.

3. The tightening device (20) a first clamping element (26) movable opposite to said mounting direction (M); a second tightening element (28) that engages with the first tightening element (26) and is movable in a direction opposite to the mounting direction (M); In the locked position, there is no frictional connection between the first clamping element (26) and the second clamping element (28); 3. The clamping device according to claim 2, wherein in the unlocked position, a frictional connection exists between the first clamping element (26) and the second clamping element (28).

4. 4. The clamping device according to claim 3, characterized in that the first clamping element (26) has an actuating surface (30, 32) by means of which the first clamping element (26) can cooperate with the legs at the edges (30, 32) and press the edges towards each other.

5. The first tightening element (28) has a longitudinally extending bolt (38); 4. A clamping device according to claim 3, characterized in that said blocking element (52) engages with said bolt (38).

6. 2. A clamping device according to claim 1, characterized in that the block element (52) is a separate part.

7. 2. The clamping device according to claim 1, wherein the blocking element (52) has a locking mechanism by means of which the blocking element (52) is locked to the actuating element.

8. 7. The clamping device according to claim 6, characterized in that the block element (52) is provided with holding means (64) for fixing the block element (52) to the clamping lug (12) of the battery terminal (10).

9. The block element (52) has an adapter ring (54), The adapter ring (54) has an outer peripheral surface (56) for closely contacting the inside of the fastening piece (12) and an inner peripheral surface (58) for closely contacting the battery electrode (16); The outer periphery of the outer periphery surface (36) substantially corresponds to the inner periphery of the fastening piece (12), and the inner periphery of the inner periphery surface (58) is smaller than the outer periphery of the outer periphery surface (36); 9. The fastening device of claim 8, wherein the blocking element blocks the locking mechanism in the unlocked position when the adapter ring is installed within the fastening piece of the battery terminal.

10. The adapter ring (54) has a contact surface (66) against which the locking mechanism (48) is in contact in the direction of the longitudinal axis (L) of the receiving space (14), and the contact surface blocks the locking mechanism (48) in the unlocked position when the adapter ring (54) is installed in the fastening piece (12) of the battery terminal (10); 10. The clamping device according to claim 9, characterized in that the blocking element (52) projects radially outward with respect to the receiving space (14).

11. 10. The fastening device according to claim 9, wherein the adapter ring (54) is provided with retaining means (64) for securing the adapter ring (54) to the fastening lugs (12) of the battery terminal (10).

12. 12. The clamping device according to claim 11, characterized in that the holding means (64) are capable of fixing the adapter ring (54) in the clamping piece (12) in the direction of the longitudinal axis (L) of the receiving space (14).

13. 2. A clamping device according to claim 1, characterized in that the blocking element (52) is integrally connected to the bolt (38).

14. A battery terminal (10) for a battery in a vehicle, comprising: A fastening piece (12) for a battery electrode (16) of a vehicle battery, the fastening piece (12) having an interruption (18) at least partially surrounding a receiving space (14) for the battery electrode (16) of the battery and having edges (22, 24) facing each other in a circumferential direction (U), A clamping device (20) according to any one of claims 1 to 13, The clamping device (20) engages the opposing edges (22, 24) and can move the edges toward each other to clamp the clamping piece (12) to the battery electrode (16).

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