Battery accommodating device for accommodating and protecting battery pack and power consumption device

Abstract

The invention relates to a battery receiving device for receiving and protecting a battery pack, comprising a housing element having a receiving space, and a door element which is fastened to the housing element in a movable, in particular pivotable manner, the door element is designed to move a battery pack arranged in the receiving space into a removal position by means of a movement of the door element from a closed position into an open position, in particular by means of a pivoting movement of the door element from the closed position into the open position. The invention also relates to a power consumption device.

Description

Technical Field

[0001] The invention relates to a battery receiving device for receiving and protecting a battery pack and to an electrical consumption device. Background Art

[0002] Battery receiving devices for electrical consumers, such as garden tools, are known, which have a receiving space in a housing in which a removable battery pack can be arranged. In order to be able to remove the battery pack, for example by hand, a relatively large housing is usually required in order to be able to grip the battery pack. However, in particular if the housing is to provide a reliable protective function, the accessibility of the battery pack when removing or inserting it into the receiving space can often be restricted. Summary of the invention

[0003] In contrast, the battery receiving device according to the invention offers the advantage that reliable protection and at the same time simple removal and insertion of the battery pack can be achieved with the aid of a simple, cost-effective and particularly compact design. This is achieved by a battery receiving device for receiving and protecting the battery pack, which comprises a housing element with a receiving space and a door element. The door element is fastened to the housing element in a movably, preferably pivotally, manner. As a result, the door element allows the receiving space to be opened and closed. In this case, the door element is designed to move the battery pack arranged in the receiving space into a removal position by a movement, preferably a pivoting movement, of the door element from a closed position into an open position.

[0004] In other words, a battery receiving device is provided, which has a door element, which together with a housing element forms a closed receiving space, which can be opened and closed by the movement of the door element. In this case, the door element has such a structural design and preferably has a mechanical coupling with a battery pack arranged in the receiving space, and when the door element moves from a closed position to an open position, the door element moves the battery pack into a removal position. In this case, the closed position is preferably defined in the following way: in this closed position, the door element completely closes the receiving space. Preferably, in the open position, the receiving space is open, that is to say, accessible from the outside. In this case, by switching the door element from the closed position to the open position, the battery pack is automatically moved into the removal position by means of the door element. In this case, the predetermined position of the battery pack can be regarded as a removal position, which allows the battery pack to be removed from the receiving space in a simplified manner. Preferably, the removal position is different from the operating position, in which the battery pack is in a ready position in the receiving space. Particularly preferably, the battery pack is moved at least partially out of the receiving space in the removal position.

[0005] The battery receiving device offers the advantage that it allows the battery pack to be removed particularly easily and conveniently from the receiving space by means of a small number of components and a particularly simple structural design which can be manufactured simply and cost-effectively. Since the battery pack is automatically moved into the removal position by means of the door element when the door element is opened, the user can easily grasp the battery pack, for example by hand, remove it and, for example, replace it. The battery receiving device also offers the further advantage of particularly secure protection of the battery pack in the closed position.

[0006] Developments of the invention result from preferred embodiments.

[0007] Preferably, the battery receiving device further comprises a fastening element for fastening the battery pack. The fastening element is provided to allow the battery pack to be removed along, in particular only along, a predetermined removal direction. Preferably, the fastening element is designed as a guide rail, which in particular allows the battery pack to be removed and inserted in a translational manner only along the removal direction. Preferably, the removal direction is arranged orthogonally to a pivot axis, for example, about which the door element can perform a pivoting movement. This makes it possible to securely fasten the battery pack in the battery receiving device and to provide simple and comfortable operability.

[0008] Particularly preferably, the fastening element is arranged on the door element. In particular, the fastening element is thus arranged on the inner side of the door element facing the receiving space. As a result, in particular when the door element is pivoted out, the battery pack can be pivoted directly together with the door element, which allows for particularly simple and comfortable operation. In addition, the advantage of a particularly space-saving design of the battery receiving device is obtained, because, for example, by automatically moving the battery pack out with the help of the door element, the battery pack can be easily grasped by hand, so that, for example, additional free space in the receiving space that would allow the battery pack to be grasped can be omitted.

[0009] Further preferably, the fastening element is arranged on the housing element. In particular, the fastening element is arranged on a wall of the housing element that delimits the receiving space. Thus, for example, a particularly robust structural design of the battery receiving device can be provided.

[0010] Preferably, the door element has a removal element, which is in particular designed as a lever element. The removal element is arranged to apply a removal force to the battery pack substantially along a predetermined removal direction during the pivoting movement of the door element from the closed position to the open position. That is to say, the door element with the removal element is designed so that the pivoting movement of the door element automatically causes the removal element to be pressed toward the battery pack by means of the removal force and thus the battery pack to move in the removal direction. This means that the battery pack is partially pushed out by moving the door element. As a result, the removal can be further improved due to the better accessibility and grippability of the battery pack. In particular, a particularly space-saving structural design of the housing element can be achieved, because, for example, a minimum free space can be provided between the battery pack and the wall of the housing element that delimits the receiving space.

[0011] Preferably, the door element is designed to apply a removal force to the battery pack after the door element has been pivoted from the closed position by at least a predetermined angle. In other words, the door element with the removal element is designed such that it can be pivoted from the closed position up to a predetermined angle without applying a force to the battery pack. Subsequently, during further pivoting through a greater angle, a removal force is applied to the battery pack. This allows particularly simple and cost-effective manufacturability and simple operability, since, for example, smaller manufacturing or position tolerances in the closed position can be achieved.

[0012] Preferably, the door element is designed such that in the closed position of the door element the removal element bears against the inner wall of the housing element. In this case, for example, the removal element and / or the door element can be designed to be partially elastically yieldable. For example, a spring mechanism can also be arranged between the removal element and the rest of the door element, which allows elastic yielding of the removal element in the closed position against the pivoting movement of the door element and presses the removal element against the inner wall of the housing element by means of the spring force. This makes it possible to provide a particularly robust structural design and a precisely defined position of parts of the door element in the closed position.

[0013] It is further preferred that the pivoting movement of the door element is limited by a slide guide. In particular, the slide guide can include a guide channel on one of the two components, the door element and the housing element, and additionally include a guide part arranged on the other component and engaging in the guide channel. In particular, the slide guide is designed to allow the door element to pivot at most within a predetermined angle range, in particular from the closed position into the open position. Preferably, the angle is at most 180°, preferably at most 90°. This allows a particularly robust structural design and particularly simple operation of the battery receiving device to be achieved.

[0014] Particularly preferably, the battery receiving device also includes a reset element, which in particular has a spring element and / or a magnetic element. Preferably, the spring element can be designed as a tension spring. In this case, the reset element resets the door element into the closed position by means of a reset force. It is particularly advantageous if the reset element has a combination of a spring element and a magnetic element, wherein the spring element causes a small portion of the reset force and the magnetic element causes a large portion of the reset force. As a result, particularly reliable closing of the door element and ensuring that it remains closed can be ensured while the battery receiving device is simple and comfortable to operate.

[0015] Preferably, the door element has two walls, between which the receiving space is at least partially arranged when the door element is in the closed position. In other words, the receiving space is at least partially delimited by the walls of the door element. That is, when the door element is brought into this position, the walls engage in the housing receiving space of the housing element. This allows a particularly stable structural design of the battery receiving device and particularly good mechanical protection of the battery pack to be provided.

[0016] Preferably, the battery receiving device further comprises a hinge, by means of which the door element is pivotably fastened to the housing element. In particular, the hinge allows the door element to be pivotably fastened to the housing element about a hinge axis. As a result, a particularly simple and smooth operation of the battery receiving device can be provided.

[0017] Preferably, the battery receiving device further comprises a contact element for electrical contacting of the battery pack, and the contact element is arranged on the door element. That is, an electrical interface that allows the battery receiving device to be electrically connected to the battery pack is arranged on the door element.

[0018] Alternatively, the contact element can preferably be arranged on the housing element, preferably if the fastening element is also arranged on the shell element.

[0019] It is further preferred that the door element has a fluid guiding element. Preferably, the fluid guiding element is designed as a channel facing away from the receiving space, for example, away from the wall, in particular as a channel in a partial area of ​​the door element. Alternatively or additionally, the fluid guiding element is preferably designed by a C-shaped configuration of a side wall of the door element, in particular by at least one wall delimiting the receiving space. In this case, the fluid guiding element allows liquid to flow out of the battery receiving device in a convenient manner and can in particular prevent liquid from penetrating into the receiving space.

[0020] The invention further relates to an electrical consumer, preferably a garden tool, alternatively preferably a handheld power tool, a kitchen appliance or a travel device, such as in particular an electric bicycle, comprising the battery receiving device. Preferably, the electrical consumer additionally comprises a battery pack arranged in the receiving space.

[0021] Preferably, in the normal position of the power consumer, a top side and a bottom side of the power consumer are defined with respect to the direction of gravity. The battery receiving device is arranged in such a way that the door element is arranged horizontally in the normal position, preferably by means of a hinge, relative to a pivot axis about which the housing element can be pivoted. This makes it possible, for example, for the door element to remain arranged in the closed position in the unloaded state, i.e. when no force is applied to the door element. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the following, the present invention is described according to the embodiments in conjunction with the accompanying drawings. In the accompanying drawings, components with the same functions are marked with the same reference numerals. Here, it is shown:

[0023] Figure 1 A perspective view of a power consumption device having a battery receiving device according to a first embodiment of the present invention is shown,

[0024] Figure 2 Show Figure 1 A three-dimensional diagram of a battery receiving device,

[0025] Figure 3 Show Figure 1 A three-dimensional view of a battery receiving device with a battery pack,

[0026] Figure 4 Show Figure 1 A sectional view of the battery receiving device in the closed position,

[0027] Figure 5 Show Figure 1 A sectional view of the battery receiving device in the open position,

[0028] Figure 6 Show Figure 1 An alternative sectional view of a battery receiving device in the closed position,

[0029] Figure 7 A sectional view showing a battery receiving device in a closed position according to a second embodiment of the present invention,

[0030] Figure 8 Show Figure 7 A sectional view of a battery receiving device in a partially opened position,

[0031] Fig. 9 Show Figure 7 A sectional view of the battery receiving device in the open position,

[0032] Fig.10 Show Figure 7 Detailed view of the battery receiving device,

[0033] Fig.11 A perspective view showing a battery receiving device according to a third embodiment of the present invention,

[0034] Fig.12 Show Fig.11 A perspective view of a door element of a battery receiving device, and

[0035] Fig.13 Show Fig.11 Detailed cross-sectional view of the battery holder. DETAILED DESCRIPTION

[0036] Figure 1 A perspective view of an electrical consumer 100 with a battery receiving device 1 for receiving and protecting a battery pack 10 according to a first exemplary embodiment of the invention is shown. The electrical consumer is a garden tool, in particular a portable high-pressure cleaner. The battery pack 10, which can be fastened in the electrical consumer by means of the battery receiving device 1, serves as an electrical energy storage device for the electrical consumer 100.

[0037] exist Figures 2 to 6 2 shows a battery receiving device 1 in a more detailed view. The battery receiving device 1 comprises a housing element 2 and a door element 4. The housing element 2 is in particular an integral component of a housing of the electrical consumer 100.

[0038] The door element 4 is fastened to the housing element 2 so as to be pivotable relative to the housing element 2. In this case, the battery receiving device 1 comprises a hinge 7, by means of which the door element 4 can be moved about a pivot axis 71 from a closed position 41 (see Figure 1 , Figure 4 and Figure 6 ) pivots to the open position 42 (see Figure 2 , Figure 3 and Figure 5 ) and vice versa.

[0039] exist Figure 1 In the normal position of the power consumer 100 shown in , the top side 101 and the bottom side 102 of the power consumer 100 are defined with respect to the direction of gravity 50 . In this case, the battery receiving device 1 is designed and arranged on the power consumer 100 such that the pivot axis 71 is arranged horizontally in the normal position. Figure 1 , the pivoting movement from the closed position 41 into the open position 42 is indicated by means of an arrow 72 .

[0040] The battery receiving device 1 further comprises a slotted guide 48 having a guide channel and a guide part 47 engaging therein. The slotted guide 48 limits the pivoting movement of the door element 4, in particular to a predetermined angular range, for example a maximum of 90°.

[0041] Furthermore, the battery receiving device 1 comprises a restoring element 6 which is designed as a spring element and which resets the door element 4 into the closed position 41 (see Figure 2 , Figure 4 and Figure 5 In detail, the spring element is designed as a tension spring, which is fastened to the housing element 2 and the door element 4 and exerts a tensile force on the door element 4 to return the door element to the closed position 41 and to hold the door element in this closed position.

[0042] Preferably, the spring element is arranged here such that in the closed position 41 of the door element 4 the longitudinal direction of the spring element is arranged substantially orthogonally to the door element 4, in particular orthogonally to the removal direction 15 (see Figure 4 In this case, the spring element is preferably arranged in the open position 42 of the door element 4 at an angle of substantially about 30° relative to the door element 4, in particular relative to the removal direction 15 (see Figure 5 ).

[0043] The housing element 2 comprises a receiving space 3 in which a battery pack 10 can be received.

[0044] In order to fasten the battery pack 10 in the battery receiving device 1, a fastening element 5 is provided, which is arranged on the door element 4 and is designed as a guide rail. In this case, in particular by being designed as a guide rail, the fastening element 5 allows the battery pack 10 to be removed by a translation movement only along a predetermined removal direction 15 and in particular also to be inserted. Figure 3 The battery pack 10 fastened to the door element 4 is shown.

[0045] On both sides of the fastening element 5, the door element 4 has two walls 49, which engage in the space of the housing element 2 and laterally delimit the receiving space 3 when the door element 4 is pivoted into the closed position 41. A minimum gap 25 can be provided between the wall 49 and the adjacent wall of the housing element 2 (see Figure 6 ).

[0046] In addition, the door element 4 preferably also has a contact element 8 in the region of the fastening element 5 , which is provided for electrical contacting of the battery pack 10 .

[0047] The door element 4 is designed to move the battery pack 10 arranged in the receiving space 3 into the removal position by pivoting the door element 4 from the closed position 41 into the open position 42, in particular by fastening the battery pack 10 to the door element 4 by means of the fastening element 5. Figure 3In this case, the user can manually grasp and remove the battery pack 10 particularly easily and conveniently and replace it with another battery pack 10 , for example.

[0048] A further advantage offered by the battery receiving device 1 is that, by automatically moving the battery pack 10 into the removal position when the door element 4 is opened, a particularly space-saving geometry can be achieved, since, for example, no additional free space needs to be provided in or on the housing element 2, which would allow the battery pack 10 to be grasped. Furthermore, the battery receiving device 1 allows particularly reliable protection of the battery pack 10, in particular against mechanical and environmental influences, in particular by completely inserting the battery pack 10 in the closed position 41.

[0049] The protection against moisture is further improved by the fluid guiding element 40, which is designed as a channel facing away from the receiving space 3 and which facilitates the drainage of the liquid or makes it more difficult for liquid to penetrate into the receiving space 3 (see Figure 2 , Figure 3 and Figure 6 ). Particularly preferably, the fluid guiding element 40 is additionally formed by an at least partially C-shaped configuration of the wall 49 of the door element 4, wherein in particular the channel also has a C-shaped course. This allows a simple and efficient drainage to be achieved in order to avoid intrusions into the receiving space.

[0050] Figure 7 FIG. 4 shows a sectional view of a battery receiving device 1 according to a second exemplary embodiment of the invention in a closed position 41 . The second exemplary embodiment corresponds essentially to Figures 1 to 6 The first embodiment differs from the alternative fastening of the battery pack 10 and the alternative configuration of the door element 4. In the second embodiment, the fastening element 5 is arranged on the housing element 2, in particular in the receiving space 3, and is also designed as a guide rail.

[0051] In the second embodiment, the door element 4 has a removal element which is designed as a lever element 45. The lever element 45 is designed as a lever arm which is opposite to the rest 44 of the door element 4 with respect to the hinge 7. When the door element 4 is opened from the closed position 41, after the door element 4 has been pivoted by a predetermined angle 43 (e.g. 30°), the lever element 45 contacts the back side of the battery pack 10. When the door element 4 is moved further in the direction of the open position 42, the lever element 45 applies a removal force 46 to the battery pack 10 in the removal direction 15. As a result, when the door element 4 moves into the closed position, in which, for example, there is an angle 43' (see Fig. 9 ), ), the battery pack 10 is partially pushed out of the fastening element 5 along the removal direction 15, so that particularly simple removal can be achieved.

[0052] Fig.10 4 shows a detailed perspective view of the door element 4. The lever element 45 is preferably pivotable in at least one direction relative to the rest 44 of the door element 4 about the pivot axis 71, preferably against the spring force of a spring (not shown), for example a torsion spring. Thus, the door element 4 with the lever element 45 can be designed such that in the closed position 41 the lever element 45 is pivoted against the spring force towards the rest 44 of the door element 4 by the fact that in the closed position the lever element bears against the inner wall 21 (see FIG. 2 ) on the housing element 2. Figure 7 ).

[0053] Fig.11 A perspective view of a battery receiving device 1 according to a third embodiment of the invention is shown. In the third embodiment, the fastening element 5 is arranged on the housing element 2 similarly to the second embodiment. For example, in the third embodiment, an automatic movement of the battery pack 10 can be achieved by the part 45a itself, which acts as a removal element of the door element 4, by a pivoting movement of the door element 4. Alternatively, preferably, in particular as in the second embodiment, an additional lever element can be provided. Further alternatively, preferably, an arrangement of the fastening element 5 on the door element 4 is possible, as in the first embodiment.

[0054] In the second embodiment, the door element 4 is constructed from multiple parts and comprises a total of three parts 4a, 4b, 4c.

[0055] The first part 4a and the second part 4b together form the actual cover-shaped door element 4, which can close the receiving space 3. The third part 4c forms a spring-loaded locking part for fastening the first part 4a and the second part 4b to the housing element 2. Here, the spring element 63 of the reset element 6 is integrated into the third part 4c and is designed as a torsion spring arranged around a pin. Here, the pin serves as a hinge 7 for pivotably fastening the door element 4 to the housing element 2.

[0056] Here, the third portion 4c serves in particular as an expected breaking point and allows the door element 4 to be detached from the housing element 2 when the load acting on the door element 4 exceeds a predetermined threshold value. Damage to the door element 4 and adjacent components of the battery receiving device 1 can thereby be avoided.

[0057] In the third embodiment, the reset element 6 is composed of two parts and comprises, in addition to the spring element 63, a magnetic element 62 which has a magnet 62b on the housing element 2 and a metal plate 62a on the door element 4. The reset element 6 is designed in such a way that a small spring force and a large magnetic force are applied. For example, a force of a maximum of 2.5 N in the closed position and preferably a force of a maximum of 3.5 N in the open position is considered to be a small spring force. Preferably, a force corresponding to a holding force of at least 5 N, a maximum of 7 N, preferably 6.5 N is considered to be a large magnetic force. This ensures that the battery receiving device 1 is particularly simple and comfortable to operate and at the same time ensures reliable protection of the battery pack 10.

[0058] exist Fig.13 , in which the door element 4 is arranged in the closed position 41 and the magnetic element 62 is shown in the closed state. Fig.13 , a fluid guiding element 40 is also shown, which is designed as a channel as in the first exemplary embodiment.

Claims

1. A battery receiving device for receiving and protecting a battery pack (10), comprising: A housing element (2) having a receiving space (3); and a door element (4) which is fastened movably, in particular pivotably, to the housing element (2) for opening and closing the receiving space (3), The door element (4) is configured to move a battery pack (10) arranged in the receiving space (3) into a removal position by movement of the door element (4) from a closed position (41) to an open position (42), in particular by pivoting the door element from the closed position to the open position.

2. The battery receiving device according to claim 1 further comprises a fastening element (5) for fastening the battery pack (10), wherein the fastening element is configured to allow the battery pack (10) to be removed along a predetermined removal direction (15), in particular only along a predetermined removal direction.

3. The battery receiving device according to claim 2, wherein: The fastening element (5) is arranged on the door element (4).

4. The battery receiving device according to claim 2, wherein: The fastening element (5) is arranged on the housing element (2).

5. The battery receiving device according to any one of claims 2 to 4, wherein: The door element (4) has a removal element, in particular a lever element (45), which is designed to exert a removal force (46) on the battery pack (10) substantially along a predetermined removal direction (15) during a pivoting movement of the door element (4) from a closed position (41) to an open position (42).

6. The battery receiving device according to claim 5, wherein: The door element (4) is designed to exert the removal force (46) on the battery pack (10) after the door element (4) has been pivoted from a closed position (41) by at least a predetermined angle (43).

7. The battery receiving device according to claim 5 or 6, wherein: The door element (4) is designed such that in the closed position (41) of the door element (4), the removal element bears against an inner wall (21) on the housing element (2).

8. The battery receiving device according to claim 1, wherein: The pivoting movement of the door element (4) is limited by a slotted guide (48).

9. The battery receiving device according to one of the preceding claims further comprises a reset element (6), which is in particular a spring element (63) and / or a magnetic element (62), and which resets the door element (4) to a closed position (41) by means of a reset force (61).

10. The battery receiving device according to claim 1, wherein: The door element (4) has two walls (49), between which the receiving space (3) is at least partially arranged in the closed position (41).

11. The battery receiving device according to claim 1, further comprising a hinge (7), by means of which the door element (4) is fastened to the housing element (2) in a pivotable manner.

12. The battery receiving device according to claim 1 , further comprising a contact element ( 8 ) for electrically contacting the battery pack ( 10 ), wherein: The contact element (8) is arranged on the door element (4).

13. The battery receiving device according to claim 1, wherein: The door element (4) has a fluid guiding element (40), in particular wherein the fluid guiding element (40) is designed as a channel facing away from the receiving space (3), or, in particular wherein the fluid guiding element (40) is designed by a C-shaped configuration of a side wall of the door element (4).

14. An electrical consumer, in particular a garden tool, comprising a battery receiving device (1) according to one of the preceding claims and in particular a rechargeable battery pack (10) which is arranged in the receiving space (3).

15. The power consumption device according to claim 14, wherein: In a normal position of the power consumption device (100), a top side (101) and a bottom side (102) of the power consumption device (100) are defined with respect to a gravity direction (50), and the battery receiving device (1) is arranged such that the door element (4) is arranged horizontally relative to a pivot axis (71) about which the housing element (2) can pivot in the normal position.

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