Battery connection terminal and device having battery pole and battery connection terminal

Abstract

The invention relates to a battery connection terminal for connecting an electrical line to a battery pole of a battery. The invention also relates to a device having a battery pole of a battery and such a battery connection.

Description

Technical Field

[0001] The invention relates to a battery connecting terminal for connecting an electrical conductor to a battery pole of a battery. The invention also relates to a device having a battery pole of a battery and such a battery connecting terminal. Background Art

[0002] A battery connection terminal is known, for example, from EP 1 852 942 B1 or FR 2 881 582 A1. Summary of the invention

[0003] The invention is based on the object of specifying an improved battery connecting terminal and a device formed thereby.

[0004] The object is achieved by a battery connecting terminal for connecting an electrical conductor to a battery pole of a battery, wherein the battery connecting terminal has the following features:

[0005] a) at least one conductor connection device for connecting an electrical conductor,

[0006] b) at least one clamping sleeve electrically connected to the conductor connection device, the clamping sleeve having at least two clamping jaws separated from one another by a free space,

[0007] c) at least one pivotable operating lever,

[0008] d) at least one wedge-shaped expansion body and / or a compression body formed with a V-shaped groove,

[0009] e) In which, by a pivoting movement of the actuating lever, the expansion body can be moved in the free space between the clamping jaws so that the clamping jaws can be expanded, and / or by a pivoting movement of the actuating lever, the clamping jaws can be surrounded from the outside by a clamping body and can be pressed together.

[0010] Such a battery connection terminal can advantageously be placed on the battery pole without greater force expenditure. With such an actuating lever, it is possible for the user to operate the battery connection terminal simply and comfortably. By performing a pivoting movement of the actuating lever, the battery connection terminal can be fixed to the battery pole in an ergonomic, labor-saving manner with the aid of its clamping sleeve, in that the clamping jaws are clamped on the battery pole under pretension. By only generating contact forces with the battery pole when placing the battery connection terminal, wear on the contact surface during the placement process can be avoided. Correspondingly, there is no need to cost-intensively coat the contact surfaces at the battery pole and / or the battery connection terminal, for example, with precious metals. In addition, a higher contact force can be achieved, so that the positioning of the battery connection terminal on the battery pole can also be ensured only by friction. In this way, additional anti-torsion devices and / or locking with the battery pole can be omitted.

[0011] Overall, the battery connecting terminal according to the invention is characterized by simple and intuitive operation for the user and a simple structural design, which in turn allows cost-effective production.

[0012] The free space between the clamping jaws can be designed as a gap, for example. The clamping jaws can have an inner contour facing the battery pole, which inner contour is matched to the outer contour of the battery pole, for example, in the case of a cylindrical battery pole, with an inner cross-sectional contour in the form of a circle segment. The clamping sleeve can be configured to accommodate a battery pole with a predetermined diameter, which diameter can be determined, for example, in the specifications of the battery connection terminal.

[0013] According to the design of the battery connection terminal with an expansion body or a compression body, the jaws have a smaller spacing, the same spacing or a larger spacing between each other than the predetermined diameter of the battery pole in the section configured to accommodate the battery pole in the relaxed state. The jaws can be elastically expanded by the expansion body, that is, the spacing between the jaws is increased. If the expansion body is reset to the neutral position again, the jaws bounce toward each other and clamp the battery pole between the jaws by the inherent clamping force of the jaws. In order to increase the clamping force, an auxiliary spring (überfeder) can also be arranged on the device to increase the contact force with the battery pole. The jaws can be pressed together by the compression body so as to be clamped on the battery pole, that is, the spacing between the jaws is reduced. The compression body has, for example, a groove, which is tapered. Preferably, the groove is at least partially V-shaped.

[0014] The conductor connection device is used to connect an electrical conductor, such as a battery cable, to a battery terminal. The conductor connection device can be configured, for example, as a crimping sleeve, a spring force clamping terminal or a screw-on clamping terminal.

[0015] According to an advantageous design of the present invention, the battery connection terminal has an insulating material housing which surrounds the conductor connection device and the clamping sleeve in an electrically insulating manner. This reduces the risk of a short circuit at the battery. This protects not only the battery but also the battery connection terminal. In addition, contact protection is provided for the operator.

[0016] According to an advantageous embodiment of the invention, the actuating lever is pivotably supported in the insulating material housing via at least one bearing element. As a result, the actuating lever is largely arranged inside the housing and correspondingly protected from damage by the insulating material housing. The actuating mechanism, i.e. the expansion body and / or the compression body, can also be arranged in the insulating material housing.

[0017] The actuating lever can be pivoted in particular about a pivot axis. For example, the pivot axis can be defined by at least one bearing element. The wedge-shaped expansion body can be supported rotatably, for example, rotatable about a pivot axis. The pressing body can be supported rotatably, for example, rotatable about a pivot axis. It is also possible that the wedge-shaped expansion body and / or the pressing body are supported movably, for example, linearly movably.

[0018] According to an advantageous design of the invention, the actuating lever has an actuating arm for manual actuation extending from the insulating material housing. This allows simple actuation of the battery terminal. In addition, the actuating arm can indicate whether the battery terminal has been clamped to the battery pole with its clamping sleeve.

[0019] According to an advantageous embodiment of the invention, the clamping jaws are elastic, so that after the expansion or pressing together caused by the actuation of the actuating lever, the clamping jaws spring back again after the actuating lever is reset. However, this elastic function of the clamping jaws is not absolutely necessary. For example, when using a pressing body, the required contact force can be generated only by the pressing body, even without the spring effect of the clamping jaws.

[0020] According to an advantageous design of the present invention, the clamping sleeve is configured to accommodate a cylindrical battery pole. Accordingly, the inner side of the section of the clamping jaw configured to accommodate the battery pole can have a complementary shape, such as a circular segment-shaped cross-sectional profile.

[0021] According to an advantageous design of the present invention, the expansion body is arranged at the joystick or is formed in one piece with the joystick, and / or the pressing body is arranged at the joystick or is formed in one piece with the joystick. This makes it possible to provide the battery connection terminal with a small number of components, so that assembly is particularly simple. In addition, the manufacturing costs can be minimized. For example, the joystick with the expansion body and / or the pressing body can be manufactured as a metal component or a plastic component, for example in an injection molding process.

[0022] According to an advantageous design of the present invention, the battery connection terminal has a transmission element that can be moved by means of an actuating lever, wherein the transmission element is formed as a component separate from the actuating lever, wherein an expansion body is arranged on the transmission element or is formed integrally with the transmission element and / or a pressing body is arranged on the transmission element or is formed integrally with the transmission element. This structure can be realized particularly advantageously using a pressing body that is formed separately from the actuating lever, and the pressing body is arranged on the transmission element or is formed integrally with the transmission element.

[0023] According to an advantageous embodiment of the invention, the clamping sleeve is formed from a plurality of stacked sheets, each of which has its own individually spring-elastically deflectable clamping legs, wherein the clamping jaws of the clamping sleeve are formed by the clamping legs of a plurality or all of the sheets. This further improves the electrical contacting of the battery poles. In addition, the axial locking for the battery connection terminal explained below can be realized in a simple manner.

[0024] According to an advantageous design of the present invention, the clamping sleeve is configured to accommodate a battery pole having a predetermined diameter, wherein the clamping legs of at least one plate in a relaxed state have an inner diameter smaller than the predetermined diameter of the battery pole in a section configured to accommodate the battery pole. Accordingly, when the battery connecting terminal is connected to the battery pole, the clamping legs of such a plate abut against the outer side of the battery pole under a certain preload.

[0025] Furthermore, the object mentioned at the outset is achieved by a device having a battery pole of a battery and a battery connecting terminal of the type described above, wherein the battery connecting terminal surrounds the battery pole with its clamping sleeve and is clamped to the battery pole by means of clamping jaws.

[0026] According to an advantageous design of the present invention, the battery pole has at least one radially circumferential groove, wherein at least one radially built-in protrusion of the clamping sleeve, in particular at least one clamping leg of at least one sheet of the clamping sleeve, engages in the radially circumferential groove. In this way, axial anti-detachment for the battery connection terminal can be achieved particularly simply and effectively. Since the protrusion of the clamping sleeve engages in the radially circumferential groove of the battery pole, the battery connection terminal cannot easily escape from the battery pole in the axial direction. Therefore, the battery connection terminal is additionally fixed to the battery pole by form fit. In the design of the clamping sleeve with multiple laminated sheets, for example, one of the sheets, for example, the sheet closest to the free end of the battery pole, can engage with its clamping leg in the radially circumferential groove.

[0027] The battery connecting terminal according to the invention is generally also suitable as a connecting terminal for other applications, for example as a pin terminal.Instead of an actuating lever, the connecting terminal can also have a sliding element for actuation.

[0028] In the sense of the present invention, the indefinite article "a" is not to be understood as a numeral. Thus, when, for example, a component is mentioned, this is to be interpreted in the sense of "at least one component". Whenever an angle is specified in degrees, this relates to a circle size of 360 degrees (360°). BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The invention is explained in more detail below based on exemplary embodiments using the accompanying drawings.

[0030] The accompanying drawings show

[0031] Figures 1 to 6 A first embodiment of the present invention is shown.

[0032] Figures 7 to 10 A second embodiment of the present invention is shown.

[0033] Figure 11 to Figure 12 A third embodiment of the present invention is shown. DETAILED DESCRIPTION

[0034] In accordance with Figures 1 to 6 In a first embodiment of the present invention, a battery connection terminal having a wedge-shaped expansion body is described. Figure 1 and Figure 2 Here, different perspective views of a battery connecting terminal 1 with an open insulating material housing 8 are shown. Figure 3 and Figure 4 A perspective view of the battery connection terminal 1 without the insulating material housing 8 is shown, and Figure 5 and Figure 6 FIG. 1 shows a side view of the battery connection terminal 1 without the insulating material housing 8. Figure 3 and Figure 4 In FIG. 1 , a battery pole 7 is additionally shown, so that the figure also shows the device with a battery pole 7 and a battery connecting terminal 1 of a battery.

[0035] In the first embodiment, the battery connection terminal 1 has the aforementioned insulating material housing 8, a wire connection device 2 for connecting an electrical wire, a clamping sleeve 3 connected to the wire connection device 2, a pivotably supported actuating lever 4 and a wedge-shaped expansion body 5. The wedge-shaped expansion body 5 is connected to the actuating lever 4 or is integrally formed with the actuating lever. The actuating lever 4 has at least one supporting element 9, via which the actuating lever is pivotably supported, for example supported in the insulating material housing 8 and via one or two laterally protruding axial ends. Here, the actuating lever 4 together with the supporting element 9 and the expansion body 5 and the clamping sleeve 3 are at least mostly located in the insulating material housing 8. The wire connection device 2 protrudes from the insulating material housing 8. The actuating lever 4 protrudes from the insulating material housing 8 with a manual actuating arm 10, which is configured for actuation by a user. There is an introduction opening 12 for introducing the battery pole 7 at the insulating material housing 8.

[0036] As can be seen, the clamping sleeve 3 has two clamping jaws 32 lying opposite one another, between which a free space 33 is formed. The wedge-shaped expansion body 5 projects into the free space 33 and can expand the clamping jaws 32 due to its wedge shape, i.e. press them apart, when the actuating lever 4 is pivoted accordingly, so that the free space 33 is enlarged and the battery pole 7 can be more easily introduced into the resulting intermediate space between the clamping jaws 32. Figure 3 and Figure 5 , the actuating lever 4 is pivoted so that the clamping jaws 32 are expanded by the wedge-shaped expansion body 5 , so that the battery pole 7 can be introduced into the intermediate space between the clamping jaws 32 without exerting any force.

[0037] Figure 4 and Figure 6 The actuating lever 4 is shown in a pivoted position in which the clamping jaws 32 are no longer expanded by the expansion body 5. The expansion body 5 is now arranged loosely in the free space 33, i.e. there is a certain play between the expansion body 5 and the adjacent area of ​​the clamping jaws 32. The clamping jaws 32 now spring toward each other again due to their elasticity and, due to their spring prestressing, clamp tightly around the battery pole 7.

[0038] It can also be seen that the clamping sleeve 3 with its clamping jaws 32 can be formed from a plurality of stacked sheets 31, in the present case two sheets 31, wherein each sheet 31 has its own individually spring-elastically deflectable clamping leg which forms the clamping jaw 32. However, it is also possible for the clamping jaw 32 not to be formed in multiple layers but rather to be formed from a material block which is continuous in the axial direction of the battery pole.

[0039] according to Figures 7 to 10 A second embodiment is described, which is characterized by the design of the battery connection terminal with a pressing body 6. Thus, instead of a wedge-shaped expansion body 5, there is a pressing body 6 with a V-shaped groove 60, by which the clamping jaws 32 can be surrounded from the outside and pressed together. In this case, the size of the free space 33 between the clamping jaws 32 is reduced.

[0040] Figures 7 to 10 The battery connecting terminal 1 is shown in different perspective views, wherein this embodiment of the battery connecting terminal 1 can also have an insulating material housing 8 , which, however, is not shown in the figures.

[0041] It can be seen that the pressing body 6 is formed as part of a transmission element 11, which is formed as a component separate from the actuating lever 4. The transmission element 11 can be moved relative to the clamping jaw 32 via the actuating lever 4, for example Figure 7 and Figure 8 A comparison is shown. Figure 7 In the embodiment, the transmission element 11 together with the pressing body 6 has not yet moved to the clamping jaw 32. Figure 8 In the present embodiment, the pressing body 6 together with the transmission element 11 is moved onto the clamping jaws 32. Due to the smaller internal spacing of the arms of the pressing body 6 due to the V-shaped groove 60, the clamping jaws 32 can be moved toward each other so that the free space 33 is reduced. In this state, the battery terminal 1 can be clamped on the battery pole 7.

[0042] In the embodiment with a wedge-shaped expansion body, a design with a separate transmission element 11 is also conceivable. It is also possible to omit the separate transmission element 11 in the embodiment with a pressure body 6. For example, the pressure body 6 can be formed integrally with the actuating rod 4.

[0043] The battery connecting terminal 1 can also have two actuating elements, namely a wedge-shaped expansion body 5 and a pressing body 6. In this case, the advantages of both embodiments can be combined with one another.

[0044] Fig.11 By way of example, a battery pole 7 is shown which can be designed to be cylindrical or can have at least one cylindrical connecting section 70. In the cylindrical connecting section 70, the battery pole 7 has a radially circumferential groove 71.

[0045] Fig.12 The battery connection terminal 1 is shown connected to the Fig.11 On the battery pole 7 shown in FIG. Fig.12 In the embodiment shown, the clamping sleeve 3 has a plurality of individual plates 31 stacked in a stack, each of which has its own individually spring-elastically deflectable clamping legs, which form the clamping claws 32 of the clamping sleeve 3. The last plate 31 pointing toward the free end of the connecting section 70 engages with its clamping legs in the groove 71, thereby fixing the battery connecting terminal 1 on the battery pole 7 in the axial direction by form fit. It is also conceivable that each other plate of the plates 31 or all plates 31 of the stack of stacked plates 31 engage in the groove 71. Therefore, the battery connecting terminal 1 cannot be easily removed from the battery pole 7 in the axial direction, but can be rotated relative to the battery pole 7.

[0046] Reference Mark List

[0047] 1 Battery connection terminal

[0048] 2 Wire connection equipment

[0049] 3 Clamping sleeve

[0050] 4 Joystick

[0051] 5 Expansion

[0052] 6. Compressing body

[0053] 7 Battery terminal

[0054] 8 Insulating material housing

[0055] 9 Support elements

[0056] 10 Manipulator Arm

[0057] 11Transmission elements

[0058] 12Introduction opening

[0059] 31 pieces

[0060] 32 jaws

[0061] 33 Free Space

[0062] 60V-groove

[0063] 70 connection section

[0064] 71 radially surrounding grooves

Claims

1. A battery connection terminal (1) for connecting an electrical conductor to a battery pole of a battery, wherein the battery connection terminal (1) has the following features: a) at least one conductor connection device (2) for connecting an electrical conductor, b) at least one clamping sleeve (3) electrically connected to the conductor connection device (2), the clamping sleeve (3) having at least two clamping jaws separated from one another by a free space, c) at least one pivotable operating lever (4), d) at least one wedge-shaped expansion body (5) and / or a compression body (6) formed with a V-shaped groove, e) wherein, by pivoting movement of the operating lever (4), the expansion body (5) can move in the free space between the clamping jaws so that the clamping jaws can expand, and / or by pivoting movement of the operating lever (4), the clamping jaws can be surrounded from the outside and pressed together by the clamping body (6).

2. The battery connection terminal according to claim 1, characterized in that: The battery connecting terminal (1) has an insulating material housing (8) which surrounds the conductor connection device (2) and the clamping sleeve (3) in an electrically insulating manner.

3. The battery connection terminal according to claim 2, characterized in that: The actuating lever (4) is pivotably supported in the insulating material housing (8) via at least one bearing element (9).

4. The battery connection terminal according to any one of claims 2 to 3, characterized in that: The actuation lever (4) has an actuation arm (10) extending from the insulating material housing (8) for manual actuation.

5. The battery connection terminal according to any one of the preceding claims, characterized in that: The clamping jaws are elastic so that after expansion or compression caused by actuation of the actuation lever (4), the clamping jaws can spring back again after the actuation lever (4) has been reset.

6. The battery connection terminal according to any one of the preceding claims, characterized in that: The clamping sleeve (3) is configured to accommodate a cylindrical battery pole.

7. The battery connection terminal according to any one of the preceding claims, characterized in that: The expansion body (5) is arranged on the actuating rod (4) or is integrally formed with the actuating rod, and / or the pressing body (6) is arranged on the actuating rod (4) or is integrally formed with the actuating rod.

8. The battery connection terminal according to any one of the preceding claims, characterized in that: The battery connecting terminal (1) has a transmission element (11) that can be moved by means of the operating lever (4), and the transmission element is designed as a component separate from the operating lever (4), wherein the expansion body (5) is arranged on the transmission element (11) or is formed integrally with the transmission element, and / or the pressing body (6) is arranged on the transmission element (11) or is formed integrally with the transmission element.

9. The battery connection terminal according to any one of the preceding claims, characterized in that: The clamping sleeve (3) is formed from a plurality of laminated sheets stacked together, each of which has its own individually elastically deflectable clamping legs, wherein the clamping jaws of the clamping sleeve (3) are formed by the clamping legs of a plurality or all of the sheets.

10. The battery connection terminal according to claim 9, characterized in that: The clamping sleeve (3) is configured to receive a battery pole having a predetermined diameter, wherein the clamping legs of at least one sheet in a relaxed state have an inner diameter relative to one another in a section configured to receive the battery pole that is smaller than the predetermined diameter of the battery pole.

11. A device having a battery pole (7) of a battery and a battery connecting terminal (1) according to any one of the preceding claims, characterized in that The battery connecting terminal (1) surrounds the battery pole (7) with its clamping sleeve (3) and is clamped to the battery pole (7) by means of the clamping jaws.

12. The device according to claim 11, characterized in that The battery pole (7) has at least one radially circumferential groove, wherein at least one radially inner projection of the clamping sleeve (3), in particular at least one clamping leg of at least one web of the clamping sleeve (3), engages in the radially circumferential groove.

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