High-pressure cleaning device

Abstract

High-pressure cleaning device including: - a motor for a high-pressure pump, - a battery pack (2) to supply the motor with energy, - a battery compartment (4) for the battery pack (2) and - a housing (3), wherein the battery compartment (4) has a longitudinal insertion end (6) on which an insertion opening (7) is arranged, wherein the battery compartment (4) has a base body (23), wherein the battery pack (2) can be inserted into the battery compartment (4) in an insertion direction (50) along an insertion axis (47) through the insertion opening (7), wherein a circumferential direction (46) runs around the insertion axis (47), wherein the high-pressure cleaning device (1) has a protective element (8) for protecting the battery compartment (4) from liquid, wherein a radial direction (49) runs radially to the insertion axis (47), wherein the protective element (8) has a protective surface (9), wherein the protective surface (9) is arranged outside the base body (23) of the battery compartment (4) with respect to the radial direction (49), characterized in that the battery compartment (4) in the region of the insertion longitudinal end (6) has a projection (10) that the projection (10) completely closed runs around the insertion axis (47),that the projection (10) projects in the radial direction (49) beyond the base body (23) of the battery compartment (4), that the protective surface (9) points in the insertion direction (50), and that the high-pressure cleaning device (1) has at least one angular section (31, 32, 33, 34) around the insertion axis (47) with respect to the circumferential direction (46), in which the protective element (8) overlaps the projection (10) with respect to the insertion direction (50) such that the projection (10) lies in front of the protective surface (9) with respect to the insertion direction (50).

Description

[0001] The invention relates to a high-pressure cleaning device according to the preamble of claim 1.

[0002] In recent times, the use of batteries for operating high-pressure pumps has become significantly more attractive due to technological advances, particularly with regard to battery capacity. However, one problem still remains that the battery pack needs to be mounted on the high-pressure cleaner in a way that is protected from liquid and, if possible, replaceable.

[0003] US 2015 0 050 169 A1 discloses a battery compartment with a pivoting cover. The cover can be snapped onto a housing by means of a hook-shaped projection.

[0004] The invention is based on the object of developing a generic high-pressure cleaning device in such a way that a battery pack can be stored in a battery compartment of the high-pressure cleaning device, protected from liquid and quickly replaceable.

[0005] This object is achieved by a high-pressure cleaning device having the features of claim 1.

[0006] According to the invention, the battery compartment has a longitudinal insertion end at which an insertion opening is arranged. The battery pack can be inserted into the battery compartment in an insertion direction along an insertion axis through the insertion opening. A circumferential direction runs around the insertion axis. The high-pressure cleaning device has a protective element to protect the battery compartment from liquid. A radial direction runs radially to the insertion axis. In particular, the radial direction can point away from the insertion axis in any direction perpendicular to the insertion axis. The protective element has a protective surface. The protective surface is arranged outside a base body of the battery compartment with respect to the radial direction, in particular with respect to any radial direction with respect to the insertion axis.

[0007] According to the invention, the battery compartment has a projection in the region of the longitudinal insertion end. The projection projects radially beyond the base body of the battery compartment. The protective surface of the protective element faces in the insertion direction. The high-pressure cleaning device has at least one angular section with respect to the circumferential direction around the insertion axis, in which the protective element overlaps the projection of the battery compartment with respect to the insertion direction such that the projection lies in front of the protective surface with respect to the insertion direction. When the battery pack is inserted into the battery compartment in the insertion direction, the battery compartment therefore first passes the projection of the battery compartment and only then the protective surface of the protective element. This creates a type of labyrinth seal.Liquid that has penetrated to the protective element, in particular to the protective surface of the protective element, must then overcome the protrusion of the battery compartment to penetrate through the insertion opening of the battery compartment into the battery compartment. To do this, the liquid must penetrate from the protective surface toward the protrusion, counter to the insertion direction. The protrusion expediently protrudes transversely, in particular perpendicular to the insertion direction, beyond the base body of the battery compartment, thus preventing the liquid from penetrating the battery compartment.

[0008] In particular, it is provided that the high-pressure cleaning device can be placed on a designated storage surface during operation. When the high-pressure cleaning device is placed on a horizontal plane, the insertion direction runs essentially in the direction of gravity. In particular, the insertion direction has a vector component in the direction of gravity. Due to the arrangement of the projection in front of the protective surface with respect to the insertion direction, liquid must penetrate against the insertion direction on its way from the protective surface to the projection, and thus at least partially also against the direction of the weight. This allows the battery pack and in particular the battery compartment to be easily protected from liquid.

[0009] In particular, the insertion axis runs coaxially with a longitudinal center axis of the battery compartment. The insertion axis can also be referred to as the longitudinal center axis of the battery compartment.

[0010] The battery compartment has a longitudinal extension in the insertion direction. The projection is expediently arranged in the third of the battery compartment that corresponds to the insertion longitudinal end of the battery compartment. In particular, the projection is arranged in the quarter of the longitudinal extension that corresponds to the insertion longitudinal end. In particular, the projection is arranged at the outermost end of the battery compartment opposite the insertion direction. In particular, the projection is a collar of the battery compartment.

[0011] Advantageously, the at least one angular section extends over an angular range of at least 45°, in particular of at least 90°, in particular of at least 120°.

[0012] In particular, the at least one angular segment extends over an angular range of at most 180°, in particular of at most 150°. However, it can also be provided that the at least one angular segment extends over exactly 360°.

[0013] Advantageously, the projection extends, in particular without gaps, across the entire at least one angular segment in the circumferential direction. This provides the protective effect of the projection over a large area. In particular, the protective surface extends, in particular without gaps, across the entire at least one angular segment in the circumferential direction. This also provides the protective effect of the protective surface over a large area.

[0014] In an advantageous development of the invention, several angular sections exist with respect to the circumferential direction, in each of which the protective element overlaps the projection with respect to the insertion direction such that the projection lies in front of the protective surface with respect to the insertion direction. Each of the several angular sections can also have the individual features described above and below for the at least one angular section.

[0015] Advantageously, the entire angular range of 360° around the insertion axis can be divided seamlessly into angular sections, in each of which, in the entire angular section, the protective element overlaps the projection with respect to the insertion direction in such a way that the projection lies in front of the protective surface with respect to the insertion direction. These individual angular sections, which lie seamlessly next to one another with respect to the circumferential direction, can also have the individual features described above and below for the at least one angular section. Because the entire angular range of 360° can be divided seamlessly into angular sections, in each of which, in the entire angular section, the protective element overlaps the projection with respect to the insertion direction in such a way that the projection lies in front of the protective surface with respect to the insertion direction, the protective effect of both the projection and the protective element is ensured over the entire angular range of 360°.In particular, the protective element extends in each of the angular sections with respect to the circumferential direction, in particular without gaps, across the entire angular section. In particular, the projection extends in each of the angular sections with respect to the circumferential direction, in particular without gaps, across the entire angular section. In particular, in each angular section, the projection, taken individually, lies in front of the protective surface with respect to the insertion direction. This relative relationship between the projection and the protective surface may not apply to the relationship between the projection from one angular section and the protective surface from another angular section.

[0016] Advantageously, a cavity is formed behind the projection with respect to the insertion direction. In particular, the cavity undercuts the projection with respect to the insertion direction. This causes the projection to protrude beyond the base body of the battery compartment. The cavity can effectively prevent liquid from penetrating the battery compartment and, in particular, the battery pack.

[0017] According to the invention, the projection extends completely closed around the insertion axis. The projection thus protects the battery pack from liquid throughout the entire angular range of 360° around the insertion axis. A gap is advantageously formed between the projection and the protective element, particularly in the radial direction. In particular, the projection is spaced apart from the protective element in the radial direction. This allows the protective element to be easily movable relative to the projection.

[0018] In particular, the protective element is a wall. The wall advantageously has a front side facing in the insertion direction. In particular, the protective surface is formed by the front side of the wall. This allows for a simple design of the protective element and the protective surface.

[0019] The battery compartment is conveniently designed as an insert, separate from the housing. This allows for easy manufacturing of the high-pressure cleaner. In particular, the protrusion of the battery compartment can be easily manufactured.

[0020] In an advantageous development of the invention, the high-pressure cleaning device has a liquid guide surface. The liquid guide surface runs around the insertion axis and / or around the battery compartment and / or around the base body of the battery compartment. In particular, the liquid guide surface runs in a closed manner around the insertion axis and / or the battery compartment and / or the base body of the battery compartment. Advantageously, the projection lies in front of the liquid guide surface in the at least one angular section, in particular in all angular sections, in particular in the angular sections extending continuously over the entire angular range of 360° with respect to the insertion direction. Advantageously, the liquid guide surface runs obliquely to the horizontal plane when the high-pressure cleaning device is parked on the horizontal plane in the designated parking position.Preferably, the protective surface is located in front of the liquid guide surface in the at least one angular section, in particular in all angular sections, in particular in the angular sections extending seamlessly over the entire angular range of 360°, with respect to the insertion direction. Because the liquid guide surface is inclined, liquid can collect on the liquid guide surface and, due to gravity, drain to the lowest point of the liquid guide surface. In particular, the high-pressure cleaning device is designed so that, due to gravity, liquid can drain from the liquid guide surface onto an outer side of the housing of the high-pressure cleaning device.

[0021] In particular, the fluid guide surface is formed by the battery compartment. In particular, the fluid guide surface protrudes radially beyond the base body of the battery compartment. Because the fluid guide surface is formed by the battery compartment, it can be manufactured easily. This allows for a simple sealing of the contact surface between the housing and the battery compartment.

[0022] The high-pressure cleaning device advantageously comprises a lid for covering the battery compartment. In particular, the protective element is attached to the lid. In particular, the protective element is a component of the lid. In particular, the lid has a main body. In particular, the protective element is attached to the main body. In particular, the protective element protrudes beyond the main body in the insertion direction.

[0023] The cover is conveniently mounted on the housing of the high-pressure cleaner so that it can pivot about a pivot axis. This allows the battery compartment to be easily covered. The cover can be sealed simply and effectively through the interaction of the protective element attached to the cover and the projection of the battery compartment. By attaching the protective element to the cover, the protective element can be easily positioned. This allows a labyrinth seal to be easily formed. At the same time, the cover can be easily opened and the battery pack removed from the battery compartment.

[0024] When the high-pressure cleaner is parked horizontally, the fluid guide surface should have a highest point. In particular, the highest point is located on the side of the pivot axis relative to the battery compartment. This protects the pivot axis from excessive fluid loading. The fluid flows along the fluid guide surface in a direction away from the pivot axis. In particular, the cover can be pivotally mounted on the housing of the high-pressure cleaner by means of a joint. The angled arrangement of the fluid guide surface protects this joint from excessive fluid loading.

[0025] The lid advantageously has an outer wall and an inner wall. In particular, the inner wall is the protective element. In particular, when the lid is closed, the inner wall is spaced from the outer wall in the radial direction at the level of the projection with respect to the insertion direction. In particular, the outer wall lies tightly, in particular watertight, against the housing of the high-pressure cleaning device. In particular, the outer wall has an outer end face that lies tightly against the housing. As a result, the outer wall forms a first barrier for liquid penetrating the battery compartment. The inner wall represents a second barrier. The projection on the battery compartment represents a third barrier.

[0026] When the cover is closed, the protective surface of the protective element expediently has a protective surface clearance from the housing of the high-pressure cleaner, measured in the insertion direction. This allows the outer wall to fit tightly and without play against the housing. Due to the protective surface clearance of the inner wall of the cover, the requirements for the manufacturing tolerances of the cover are low. In particular, the protective surface clearance is less than 8 mm, especially less than 5 mm. In particular, the protective surface clearance is greater than 1 mm, especially greater than 2 mm.

[0027] In particular, the cover has an outer wall. In particular, the housing has an outer side. In an advantageous development of the invention, the outer wall is set back from the outer side of the housing. This can also be seen as an independent inventive concept. Because the outer wall of the cover is set back from the outer side of the housing, the outer wall of the cover does not offer any contact surface in the sense of a projection on which a force for opening, in particular for pivoting the cover about the pivot axis, can act. This prevents cleaning fluid from being sprayed against such a projection and the cover from being inadvertently opened or pivoted as a result. Because the outer wall of the cover is set back from the outer side of the housing, the cover can rest on the housing without being secured.In particular, only a return element can be provided, which presses the cover toward its closed position against the housing. A spring, in particular a torsion spring, can serve as the return element, for example.

[0028] The outer wall of the cover, particularly the main body of the cover, has an outer face. In particular, when the cover is closed, the outer face rests against a contact surface on the housing. The interaction between the housing and the outer wall of the cover creates a space that is sealed to the outside.

[0029] The outer wall of the cover is expediently arranged radially entirely within the outer side of the housing in the area of ​​the contact surface. As a result, the outer wall of the cover does not offer any surface for opening forces, especially not for unintentional opening forces. In particular, the outer side of the cover in the area of ​​the contact surface has a smaller distance from the insertion axis of the battery compartment, measured in the radial direction, than the outer side of the housing.

[0030] The high-pressure cleaning device expediently has a handle. The handle is arranged, in particular, on the outer wall of the lid. In particular, a penetration opening is formed through the handle in a direction tangential to the outer wall. If a force caused by the cleaning fluid acts on the handle, this force is very small, since the cleaning fluid can pass through the penetration opening and cannot transfer any force to the handle and thus also to the lid in the area of ​​the penetration opening.

[0031] An embodiment of the invention is explained below with reference to the drawings. They show: Fig. 1 a perspective view of a high-pressure cleaning device, Fig. 2 a top view of the high-pressure cleaning device Fig. 1, Fig. 3 a perspective view of a part of the high-pressure cleaning device from Fig. 1 with the lid open, Fig. 4 a perspective view of the section according to Fig. 3 with the cover removed, Fig. 5 a perspective view of a section along the section line VV from Fig. 2, Fig. 6 a sectional view of a section along the section line VI-VI from Fig. 2, Fig. 7 a detail of a sectional view of a section along the section line VV from Fig. 2, Fig. 8 a detail of a sectional view of a section along the section line VIII-VIII of Fig. 2, with a battery pack inserted into the battery compartment, Fig. 9 a perspective sectional view of a section along the section line IX-IX of Fig. 2, Fig. 10 a detail (in Fig. 9 marked with X) a sectional view of a section along the section plane IX-IX from Fig. 2, Fig. 11 a detailed view of a perspective view of the high-pressure cleaning device from Fig. 1 with the cover and locking lever removed to secure the battery pack in the battery compartment, Fig. 12 another perspective detail view of a Fig. 11 area of ​​the high-pressure cleaning device marked XII Fig. 11 and Fig. 13 a detail of a top view of the high-pressure cleaning device from Fig. 1.

[0032] Fig. Figure 1 shows a high-pressure cleaning device 1. The high-pressure cleaning device 1 is designed for cleaning objects with pressurized cleaning fluid. In the exemplary embodiment, the high-pressure cleaning device 1 is portable. The high-pressure cleaning device 1 has a handle 24. The high-pressure cleaning device 1 can be carried by the handle 24. During normal operation, the high-pressure cleaning device 1 is switched off. In the exemplary embodiment, the high-pressure cleaning device 1 is a battery-powered high-pressure cleaner.

[0033] The high-pressure cleaning device 1 has a housing 3. The housing 3 at least partially defines the outside of the high-pressure cleaning device 1. The high-pressure cleaning device 1 has a high-pressure pump (not shown). The high-pressure pump is arranged in the housing 3. The high-pressure pump can be used to pressurize cleaning fluid in the high-pressure cleaning device 1. The high-pressure pump can be used to pressurize the cleaning fluid to a pressure of at least 10 bar, in particular at least 15 bar, in particular at least 30 bar, in particular at least 100 bar. In particular, the high-pressure pump can pressurize the cleaning fluid to a pressure of at most 600 bar, in particular at most 500 bar. The high-pressure cleaning device 1 comprises a motor (not shown). The motor serves to drive the high-pressure pump. The motor is arranged in the housing 3.In the embodiment, the motor is an electric motor, in particular a brushless DC motor.

[0034] The high-pressure cleaning device 1 comprises a Fig. 3 to 5. The battery compartment 4 is used to hold a battery pack 2. The battery pack 2 is in Fig. 8. In the exemplary embodiment, the battery compartment 4 is formed separately from the housing 3. The battery compartment 4 is designed as an insert. The battery compartment 4 is attached to the housing 3. The battery compartment 4 protrudes into the housing 3. An opening is provided in the housing 3 for this purpose. The battery compartment 4 fills this opening.

[0035] The battery pack 2 is used to supply the motor with energy. In particular, the battery pack 2 is the sole energy source of the high-pressure cleaning device 1. As is particularly evident from the Fig. 5 and Fig. 9, the battery compartment 4 has a longitudinal insertion end 6. An insertion opening 7 is arranged at the longitudinal insertion end 6. The battery pack 2 can be inserted into the battery compartment 4 through the insertion opening 7. The battery pack 2 can be inserted into the battery compartment 4 in an insertion direction 50. The high-pressure cleaning device 1 is designed such that the battery pack 2 is guided by the battery compartment 4 in the insertion direction 50 when it is inserted into the battery compartment 4. While the battery pack 2 is being inserted into the battery compartment 4, the battery pack 2 rests against an inner wall of the battery compartment 4.

[0036] When inserted into the battery compartment 4, the battery pack 2 is moved in the insertion direction 50 along an insertion axis 47. The insertion axis 47 extends in the insertion direction 50. The battery compartment 4 has a longitudinal central axis. The longitudinal central axis runs coaxially to the insertion axis 47. The insertion axis 47 is also referred to as the longitudinal central axis of the battery pack compartment. The insertion axis 47 runs centrally with respect to the battery compartment 4. The inner wall of the battery compartment 4 delimits cross-sections of the battery compartment 4 that run perpendicular to the insertion axis 47. The insertion axis 47 runs through the geometric centroid of this cross-section, at least with respect to one cross-section.

[0037] As in Fig. 6, the high-pressure cleaning device 1 has a storage position for intended operation. In this storage position, the high-pressure cleaning device 1 can be parked on a horizontal plane H. In this position, the insertion direction 50 runs towards the horizontal plane H. In this position, the insertion direction 50 has a vectorial component in the direction of gravity. In the exemplary embodiment, the insertion direction 50 runs obliquely to the horizontal plane H. The insertion direction 50 forms an angle of 45° to 90° with the horizontal plane H. The insertion axis 47 forms an angle of 45° to 90° with the horizontal plane H.

[0038] For example, in Fig. As shown in Figure 3, the insertion opening 7 has an inner edge. The inner edge of the insertion opening 7 is completely enclosed and extends around the insertion axis 47. A circumferential direction 46 extends around the insertion axis 47. The circumferential direction 46 extends around the insertion axis 47 in an imaginary plane perpendicular to the insertion axis 47. The circumferential direction 46 extends along an imaginary circular line, with the insertion axis 47 at its center.

[0039] For example Fig. 5, the battery compartment 4 has a base 25. The base 25 delimits the battery compartment 4 at its longitudinal base end 26. The longitudinal base end 26 of the battery compartment 4 lies opposite the insertion longitudinal end 6 of the battery compartment 4 with respect to the insertion direction 50. The base 25 is spaced from the insertion opening 7 with respect to the insertion direction 50. The battery pack 2 rests against the base 25 when inserted into the battery compartment 4.

[0040] For example, in Fig. 5, a radial direction 49 runs perpendicular to the insertion direction 50. The radial direction 49 runs perpendicular to the insertion axis 47. The radial direction 49 runs radially to the insertion axis 47. The radial direction 49 can point in any direction radial to the insertion axis 47. The radial direction 49 points away from the insertion axis 47. The inner wall of the battery compartment 4 delimits the battery compartment 4 in any radial direction 49. The inner wall of the battery compartment 4 runs in the circumferential direction 46 around the insertion axis 47.

[0041] For example, in Fig. As shown in Figure 5, the high-pressure cleaning device 1 has a protective element 8. The protective element 8 serves to protect the battery compartment 4 from liquid. The protective element 8 is also shown, for example, in the Fig. 3, Fig. 6, Fig. 7, Fig. 8, Fig. 9 or Fig. 10 shown.

[0042] The battery compartment 4 has a base body 23, as shown in Fig. 5. The base body 23 extends in the region of the insertion longitudinal end 6 of the battery compartment 4 in the insertion direction 50. The battery compartment 4 has a projection 10. The projection 10 is arranged in the region of the insertion longitudinal end 6 of the battery compartment 4. The projection 10 protrudes in the radial direction 49 beyond the base body 23 of the battery compartment 4.

[0043] The protective element 8 has a protective surface 9. The protective surface 9 is, for example, in Fig. 3. The protective surface 9 points in the insertion direction 50. In other words, the protective element 8 protrudes with its protective surface 9 in the insertion direction 50. The protective surface 9 is a free end of the protective element 8. The protective surface 9 delimits the protective element 8 in the insertion direction 50.

[0044] The protective surface 9 is arranged outside the base body 23 of the battery compartment 4 with respect to the radial direction 49. In particular, the protective surface 9 is arranged completely outside the base body 23 of the battery compartment 4 with respect to the radial direction 49. With respect to the radial direction 49, the protective surface 9 and the base body 23 of the battery compartment 4 overlap without overlap. The base body 23 of the battery compartment 4 is arranged completely within the protective surface 9 with respect to the radial direction 49. In the exemplary embodiment, the protective element 8 is arranged outside, in particular completely outside, the base body 23 of the battery compartment 4 with respect to the radial direction 49.

[0045] As in Fig. 5, the high-pressure cleaning device 1 has at least one angular section 31. The angular section is a section of the angle in the circumferential direction around the insertion axis 47. The angular section is a part of the entire space. The angular section is delimited at its angle apex by the insertion axis 47. Starting from the insertion axis 47, half-planes extend, each of which is delimited by the insertion axis 47 and delimit the angular section 31. In the radial direction 49 within the angular section, the angular section 31 is unlimited. In the insertion direction 50 and in the direction opposite to the insertion direction 50, the angular section 31 is unlimited. The half-planes that delimit the at least one angular section 31 are unlimited in the radial direction 49 and in the insertion direction 50 and in the direction opposite to the insertion direction. The half-planes are delimited exclusively by the insertion axis 47. The insertion axis 47 is a straight line.

[0046] In the exemplary embodiment, the high-pressure cleaning device 1 has at least one angular section 31 in which the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50. In other words, the protective element 8 projects beyond the projection 10 in the at least one angular section 31 in the insertion direction such that the protective surface is further away from the insertion opening 7 of the battery compartment 4 with respect to the insertion direction 50 than the projection 10 of the battery compartment 4. In the at least one angular section 31, the projection 10 and the protective surface 9 do not overlap with respect to the insertion direction 50. With respect to the circumferential direction 46, over the entire at least one angular section 31, the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50.For each point of the projection 10 within the at least one angular section 31, it is assumed that it lies in front of any point of the protective surface 9 within the at least one angular section 31 with respect to the insertion direction 50. As long as the part of the projection 10 from the at least one angular section 31 is compared with the part of the protective surface 9 from the at least one angular section 31, it is assumed that this part of the projection 10 lies in front of this part of the protective surface 9 with respect to the insertion direction 50.

[0047] In the exemplary embodiment, the at least one angle section 31 extends over an angular range of at least 45°, in particular of at least 90°, in particular of at least 120° in the circumferential direction 46 around the insertion axis 47.

[0048] In the exemplary embodiment, the at least one angular section 31 extends over an angular range of at most 180°, in particular of at most 150°, in the circumferential direction 46 around the insertion axis 47. However, it can also be provided that the at least one angular section 31 extends over an angular range of 360° in the circumferential direction 46 around the insertion axis 47. In this case, the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 at any desired point such that the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50. In particular, the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that any desired point of the projection 10 lies in front of any desired point of the protective surface 9 with respect to the insertion direction 50.

[0049] The projection 8 extends, in particular without gaps, over the entire at least one angular section 31 with respect to the circumferential direction 46. The protective surface 9 extends, in particular without gaps, over the entire at least one angular section 31 with respect to the circumferential direction 46.

[0050] As in Fig. 5, there are several angular sections 31, 32, 33 and 34, in each of which the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that the projection lies in front of the protective surface 9 with respect to the insertion direction 50. The fact that the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50 applies in particular only to parts of the projection 10 and the parts of the protective surface 9 that are assigned in pairs to the same angular section 31, 32, 33 or 34.

[0051] In the exemplary embodiment, the entire angular range of 360° in the circumferential direction 46 around the insertion axis 47 can be divided seamlessly into angular sections 31, 32, 33, 34, in each of which, in the entire angular section 31, 32, 33, 34, the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50. In the exemplary embodiment, there are four angular ranges 31, 32, 33, 34, in each of which the condition is met that the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that the projection 10 lies in front of the protective surface 9 with respect to the insertion direction 50.In the individual angular sections 31, 32, 33, 34, the protective element 8 overlaps the projection 10 with respect to the insertion direction 50 such that the entire projection 10 in the respective angular section 31, 32, 33 or 34 with respect to the insertion direction 50 lies completely in front of the part of the protective surface 9 from the same angular section 31, 32, 33, 34.

[0052] In the exemplary embodiment, the four angular sections 31, 32, 33 and 34 are of equal size. In the exemplary embodiment, the four angular sections 31, 32, 33, 34 each extend in the circumferential direction 46 around the insertion axis 47 over an angle of exactly 90°. This is shown in Fig. 5 is shown only schematically. The course of the projection 10 in the area not shown due to the section is shown in Fig. 5 is shown schematically with a thick dashed line. The half-planes described above, which delimit the individual angle sections 31, 32, 33, 34, are not shown for reasons of clarity. The half-planes contain the Fig. 5, the boundary lines of the individual angular sections 31, 32, 33, 34 are drawn and are each limited only by the insertion axis 47. Each angular section 31, 32, 33, 34 is limited by two half-planes and the insertion axis 47.

[0053] As in Fig. 6, the battery compartment 4 has a longitudinal extension 27 with respect to the insertion direction 50. The longitudinal extension 27 has a front third with respect to the insertion direction 50. The longitudinal extension 27 has a front quarter with respect to the insertion direction 50. The front third of the longitudinal extension 27 is assigned to the insertion opening 7. The front quarter of the longitudinal extension 27 is assigned to the insertion opening 7. The front third of the longitudinal extension 27 is assigned to the insertion longitudinal end 6. The front quarter of the longitudinal extension 27 is assigned to the insertion longitudinal end 6. The front third of the longitudinal extension 27 lies at the edge of the longitudinal extension 27. The front quarter of the longitudinal extension 27 lies at the edge of the longitudinal extension 27. The projection 10 of the battery compartment 4 is arranged in the front third of the longitudinal extension 27. In the exemplary embodiment, the projection 10 of the battery compartment 4 is arranged in the front quarter of the longitudinal extension 27.

[0054] In the exemplary embodiment, the projection 10 forms a collar of the battery compartment 4. In the exemplary embodiment, the projection 10 is arranged at the outermost end of the battery compartment 4 in the direction opposite to the insertion direction 50. The projection 10 forms an edge of the battery compartment 4. The projection 10 delimits the battery compartment 10 in the direction opposite to the insertion direction 50.

[0055] As particularly in the Fig. 4 and Fig. 5, a cavity 11 is formed behind the projection 10 with respect to the insertion direction 50. The cavity 11 undercuts the projection 10 with respect to the insertion direction 50. The cavity 11 is located, with respect to the insertion direction 50, on the side of the projection 10 that faces away from the insertion opening 7 of the battery compartment 4.

[0056] As in the Fig. 3 and Fig. As shown in Figure 4, the projection 10 extends completely closed around the insertion axis 47. The projection 10 extends uninterruptedly around the insertion axis 47 with respect to the circumferential direction 46.

[0057] How Fig. 3 in conjunction with, for example, the Fig. 5 and Fig. 9, the protective surface 9 of the protective element 8 runs completely closed around the insertion axis 47. In the exemplary embodiment, this applies at least to the operating state of the high-pressure cleaning device 1. The protective surface 9 extends uninterruptedly around the insertion axis 47 in the circumferential direction 46.

[0058] As in Fig. As shown in FIG. 10, a gap 12 is formed between the projection 10 and the protective element 8, particularly in the radial direction 49. The projection 10 is spaced apart from the protective element 8 by a distance d1 in the radial direction 49.

[0059] As in Fig. 3, the protective element 8 is a wall. The wall has a front side. The front side of the wall is the protective surface 9 of the protective element 8 designed as a wall. As shown in Fig. 5, shows the front side in the operating state of the high-pressure cleaning device 1 in the insertion direction 50. The front side of the wall is facing away from the insertion opening 7 in the operating state of the high-pressure cleaning device 1. As can be seen from the overview of the Fig. 3, Fig. 5 and Fig. 9, the wall runs closed around the insertion axis 47.

[0060] As in the Fig. 5 and 9 to 12, the high-pressure cleaning device 1 has a liquid guide surface 15. The liquid guide surface 15 runs around the insertion axis 47. In particular, the liquid guide surface 15 runs in a closed manner around the insertion axis 47. In particular, the liquid guide surface 15 extends continuously around the insertion axis 47 with respect to the circumferential direction 46. The liquid guide surface 15 runs around the battery compartment 4, in particular around the base body 23 of the battery compartment 4. The liquid guide surface 15 runs in a closed manner around the battery compartment 4, in particular around the base body 23 of the battery compartment 4. The liquid guide surface 15 extends continuously around the battery compartment 4, in particular around the base body 23 of the battery compartment 4, with respect to the circumferential direction 46.

[0061] As in Fig. 5, the projection 10 is located in the at least one angular section 31, 32, 33, 34, in particular in all angular sections 31, 32, 33 and 34, in particular in the angular sections 31, 32, 33, 34 extending seamlessly over the entire angular range of 360°, in front of the liquid guide surface 15 with respect to the insertion direction 50. This applies to each of the angular sections 31, 32, 33, 34 individually. However, it can also be provided that this applies to an angular section extending over 360°. In Fig. 6, the position of the liquid guide surface 15 is shown schematically in thick dashed lines. When the high-pressure cleaning device 1 is parked on the horizontal plane H in the designated parking position, the liquid guide surface 15 runs obliquely to the horizontal plane H. In particular, the liquid guide surface 15 is inclined at an angle of at least 5° to the horizontal plane H. In particular, the liquid guide plane 15 is inclined at an angle of at most 30° to the horizontal plane H. In particular, the liquid guide surface 15 is inclined at an angle of 60° to 85° to the insertion direction 50. This is the case regardless of the parking position.

[0062] In particular, the liquid guide surface 15 extends in one plane.

[0063] How best in Fig. 3, the high-pressure cleaning device 1 comprises a cover 5. The cover 5 serves to cover the battery compartment 4. In the exemplary embodiment, the cover 5 is designed such that it completely covers the battery compartment 4 when closed. As Fig. 3, the protective element 8 is fixed to the cover 5. The cover 5 has a main body 29. The protective element 8 is a component of the cover 5. The protective element 8 is fixed to the main body 29. In Fig. In the closed state of the cover 5 shown in Fig. 5, the protective element 8 projects from the main body 29 in the insertion direction 50 onto the housing 3 of the high-pressure cleaning device 1.

[0064] The cover 5 is arranged on the housing 3 of the high-pressure cleaning device 1 so as to be pivotable about a pivot axis 48, as shown in Fig. 3. How Fig. 6, the high-pressure cleaning device 1 is designed such that the liquid guide surface 15 guides liquid in the direction away from the pivot axis 48. When the high-pressure cleaning device 1 is parked on the horizontal plane H, the liquid guide surface 15 has a highest point P. The highest point P of the liquid guide surface 15 lies on the side of the pivot axis 48 with respect to the battery compartment 4. Starting from the highest point P, liquid on the liquid guide surface 15 will flow away from the pivot axis 48 due to the effect of gravity.

[0065] The cover 5 is connected by a joint 16 ( Fig. 8) is pivotally mounted on the housing 3 about the pivot axis 48. Because the fluid guide surface 15 directs fluid away from the pivot axis 48, the joint 16 is subjected to less fluid loading. As is particularly evident in the Fig. 9 and Fig. 11, the liquid guide surface 15 is formed by the battery compartment 4. The liquid guide surface 15 protrudes in the radial direction 49 beyond the base body 23 of the battery compartment 4.

[0066] As in Fig. 11, liquid can flow from the liquid guide surface 15 onto the housing 3, in particular onto the outer side 17 of the housing 3. The liquid guide surface 15 has a lowest point T when the high-pressure cleaning device 1 is parked on the horizontal plane H. This is also shown in Fig. 6. The lowest point T of the liquid guide surface 15 is located on the side of the battery compartment 4 facing away from the pivot axis 48. Due to the effect of gravity, liquid will flow on the liquid guide surface 15 to the lowest point T. The lowest point T is a collection point for liquid. The high-pressure cleaning device 1 is designed such that the liquid flows from the lowest point T onto the housing 3, in particular onto the outer side 17 of the housing 3. The housing 3 is arranged in a dome-like manner around the liquid guide surface 15.

[0067] During normal operation of the high-pressure cleaning device 1, the cover 5 is closed. During operation of the high-pressure cleaning device 1, the cover 5 of the high-pressure cleaning device 1 is closed. As shown in Fig. As shown in Figure 8, the high-pressure cleaning device 1 comprises a return element 28. The return element 28 preloads the cover 5 in its closed state. The return element 28 preloads the cover 5 toward the housing 3. In the exemplary embodiment, the return element 28 is a torsion spring. The return element 28 exerts a force in the direction around the pivot axis 48. The return element 28 presses the cover 5 toward the housing 3. The cover 5 is preloaded toward the housing 3.

[0068] The Fig. The first angular section 31 shown in Figure 4 opens in a direction away from the pivot axis 48. The second angular section 32 opens in one direction of the pivot axis 48. The third angular section 33 opens in a direction towards the pivot axis 48. The fourth angular section opens in the other direction of the pivot axis 48. The first angular section 31 opens in a direction towards the lowest point T of the liquid guide surface 15. The third angular section 33 opens in a direction towards the highest point P of the liquid guide surface 15. The first angular section 31 contains the lowest point T of the liquid guide surface 15. The third angular section 33 contains the highest point P of the liquid guide surface 15.

[0069] As particularly in Fig. As can be seen in Figure 3, the cover 5 has an outer wall 13 and an inner wall 14. The inner wall 14 is the protective element 8. The inner wall 14 forms the protective element 8. When the cover 5 is closed, the inner wall 14 lies further inward with respect to the radial direction 49 than the outer wall 13.

[0070] It can be provided that the outer wall 13 completely encloses the inner wall 14 in the circumferential direction 46 when the cover 5 is closed. The outer wall 13 then runs closed around the insertion axis 47 in the circumferential direction 46 when the cover 5 is closed.

[0071] In the exemplary embodiment, the inner wall 14 runs in the circumferential direction 46 around the insertion axis 47 when the cover 5 is closed. With the cover 5 closed, the inner wall 14 has a distance a1 from the outer wall 13 in the radial direction 49 at the level of the projection 10 with respect to the insertion direction 50. This is shown in Fig. 7. The distance a1 is the smallest distance between the inner wall 14 and the outer wall 13 with respect to all conceivable radial directions 49.

[0072] The outer wall 13 of the cover 5 forms a first barrier against the penetration of liquid to the battery compartment 4. The inner wall 14 of the cover 5 forms a second barrier against the penetration of liquid to the battery compartment 4.

[0073] As in Fig. As shown in Figure 7, when the cover 5 is closed, the protective surface 9 of the protective element 8 has a protective surface distance s measured in the insertion direction 50 from the housing 3 of the high-pressure cleaning device 1. In the exemplary embodiment, the protective surface distance s is at most 8 mm, in particular at most 5 mm. In the exemplary embodiment, the protective surface distance s is at least 1 mm, in particular at least 2 mm.

[0074] As in Fig. 7, the outer wall 13 has an outer end face 18. The housing 3 has a contact surface 19. The contact surface 19 serves to attach the outer end face 18 to the housing 3.

[0075] It can be provided that, in the closed state of the cover 5, the outer end face 18 of the outer wall 13 rests against the contact surface 19 of the housing 3, at least indirectly via a sealing element. In the exemplary embodiment, the outer end face 18 of the outer wall 13 rests directly against the contact surface 19 of the housing 3 when the cover 5 is closed.

[0076] As in Fig. 7, the housing 3 has an outer side 17. The outer wall 13 of the cover 5 is set back relative to the outer side 17 of the housing 3 when the cover 5 is closed. The outer wall 13 of the cover 5 is arranged completely within the outer side 17 of the housing 3 in the region of the contact surface 19 with respect to the radial direction 49 in the region of the contact surface 19. The outer side 20 of the outer wall 13 of the cover 5 has a smaller distance from the insertion axis 47 of the battery compartment 4 in the region of the contact surface 19 of the housing 3, measured in the radial direction 49, than the outer side 17 of the housing 3. The two distances compared are measured in identical radial directions 49. In other words, the two distances are measured at the same location with respect to the circumferential direction 46.The outer wall 13 is arranged in the region of the contact surface 19 with respect to the radial direction 49 over the entire angular range of 360° in the circumferential direction 46 around the insertion axis 47 completely within the outer side 17 of the housing 3 in the region of the contact surface 19. With respect to the insertion direction 50 in the region of the contact surface 19, the outer wall 13 of the cover 5 does not protrude at any point in the radial direction 49 beyond the outer side 17 of the housing 3 with respect to the insertion direction 50 in the region of the contact surface 19.

[0077] As in Fig.13, the high-pressure cleaning device 1 has a handle 21. The handle 21 is arranged on the outer wall 13 of the lid 5. A penetration opening 22 is formed by the handle 21 in the direction tangential to the outer wall 13. The handle 21 encloses the penetration opening 22 together with the lid 5. The handle 21 delimits the penetration opening 22 with a handle wall. The handle wall has a wall thickness. The wall thickness of the handle wall in the exemplary embodiment is less than 8 mm, in particular less than 6 mm. The handle 21, in particular the handle wall, has a maximum boundary width b viewed in the direction tangential to the outer wall 13 of the lid 5. The maximum boundary width b of the handle 21, in particular of the handle wall, is less than 8 mm, in particular less than 6 mm in the exemplary embodiment. The handle wall of the handle 21 runs partially parallel to the outer wall 13 of the lid 5.

Claims

[1] High-pressure cleaning device comprising: - a motor for a high-pressure pump, - a battery pack (2) to supply the motor with energy, - a battery compartment (4) for the battery pack (2) and - a housing (3), wherein the battery compartment (4) has a longitudinal insertion end (6) at which an insertion opening (7) is arranged, wherein the battery compartment (4) has a base body (23), wherein the battery pack (2) can be inserted into the battery compartment (4) in an insertion direction (50) along an insertion axis (47) through the insertion opening (7), wherein a circumferential direction (46) runs around the insertion axis (47), wherein the high-pressure cleaning device (1) has a protective element (8) for protecting the battery compartment (4) from liquid, wherein a radial direction (49) runs radially to the insertion axis (47), wherein the protective element (8) has a protective surface (9), wherein the protective surface (9) is arranged outside the base body (23) of the battery compartment (4) with respect to the radial direction (49), characterized bythat the battery compartment (4) has a projection (10) in the region of the insertion longitudinal end (6), that the projection (10) runs completely closed around the insertion axis (47), that the projection (10) projects in the radial direction (49) beyond the base body (23) of the battery compartment (4), that the protective surface (9) points in the insertion direction (50), and that the high-pressure cleaning device (1) has at least one angular section (31, 32, 33, 34) around the insertion axis (47) with respect to the circumferential direction (46), in which angle the protective element (8) overlaps the projection (10) with respect to the insertion direction (50) in such a way that the projection (10) lies in front of the protective surface (9) with respect to the insertion direction (50). [2] High-pressure cleaning device according to claim 1, characterized by that the at least one angular section (31, 32, 33, 34) extends over an angular range of at least 45°, in particular of at least 90°, in particular of at least 120°. [3] High-pressure cleaning device according to claim 1 or 2, characterized by that the at least one angular section (31, 32, 33, 34) extends over an angular range of at most 180°, in particular of at most 150°. [4] High-pressure cleaning device according to one of claims 1 to 3, characterized by that the projection (10) and / or the protective surface (9) extends over the entire at least one angular section (31, 32, 33) with respect to the circumferential direction (46). [5] High-pressure cleaning device according to one of claims 1 to 4, characterized by that, with respect to the circumferential direction (46), there are a plurality of angular sections (31, 32, 33, 34) around the insertion axis (47), in each of which the protective element (8) overlaps the projection (10) with respect to the insertion direction (50) in such a way that the projection (10) lies in front of the protective surface (9) with respect to the insertion direction (50). [6] High-pressure cleaning device according to one of claims 1 to 5, characterized bythat the entire angular range of 360° in the circumferential direction (46) around the insertion axis (47) can be divided seamlessly into angular sections (31, 32, 33), in each of which, in the entire angular section (31, 32, 33), the protective element (8) overlaps the projection (10) with respect to the insertion direction (50) in such a way that the projection (10) lies in front of the protective surface (9) with respect to the insertion direction (50). [7] High-pressure cleaning device according to one of claims 1 to 6, characterized by that a cavity (11) is formed behind the projection (10) with respect to the insertion direction (50), which cavity undercuts the projection (10) with respect to the insertion direction (50). [8] High-pressure cleaning device according to one of claims 1 to 7, characterized by that a gap (12) is formed between the projection (10) and the protective element (8), in particular that the projection (10) has a distance (d1) from the protective element (8) in the radial direction (49). [9] High-pressure cleaning device according to one of claims 1 to 8, characterized by that the protective element (8) is a wall, that the wall has an end face pointing in the insertion direction (50), and that the protective surface (8) is formed by the end face of the wall. [10] High-pressure cleaning device according to one of claims 1 to 9, characterized by that the battery compartment (4) is designed as an insert part separate from the housing (3). [11] High-pressure cleaning device according to one of claims 1 to 10, characterized bythat the high-pressure cleaning device (1) has a liquid guide surface (15), that the liquid guide surface (15) rotates around the insertion axis (47) and / or around the base body (23) of the battery compartment (4), in particular rotates in a closed manner, that the projection (10) in the at least one angular section (31, 32, 33, 34), in particular in all angular sections (31, 32, 33, 34), in particular in the angular sections (31, 32, 33, 34) extending continuously over the entire angular range of 360°, lies in front of the liquid guide surface (15) with respect to the insertion direction (50), and that the liquid guide surface (15) runs obliquely to the horizontal plane (H) when the high-pressure cleaning device (1) is parked on a horizontal plane (H) in the parking position provided for it. [12] High-pressure cleaning device according to one of claims 1 to 11, characterized bythat the high-pressure cleaning device (1) comprises a cover (5) for covering the battery compartment (4), and that the protective element (8) is fixed to the cover (5), and in particular that the cover (5) is arranged on the housing (3) of the high-pressure cleaning device (1) so as to be pivotable about a pivot axis (48). [13] High-pressure cleaning device according to claims 11 and 12, characterized by that the liquid guide surface (15) has a highest point (P) when the high-pressure cleaning device (1) is parked on the horizontal plane (H), and that the highest point (P) with respect to the battery compartment (4) is on the side of the pivot axis (48). [14] High-pressure cleaning device according to one of claims 11 to 13, characterized by that the liquid guide surface (15) is formed by the battery compartment (4). [15] High-pressure cleaning device according to one of claims 12 to 14, characterized bythat the lid (5) has an outer wall (13) and an inner wall (14), and that the inner wall (14) is the protective element (8), and in particular that the inner wall (14) has a distance (a1) from the outer wall (13) in the radial direction (49) with respect to the insertion direction (50) at the level of the projection (10). [16] High-pressure cleaning device according to one of claims 12 to 15, characterized by that the protective surface (9) of the protective element (8) has a protective surface distance (s) measured in the insertion direction (50) from the housing (3) of the high-pressure cleaning device (1) when the cover (5) is closed. [17] High-pressure cleaning device according to one of claims 12 to 16, characterized by that the outer wall (13) has an outer end face (18), and that the outer end face (18) bears against a contact surface (19) on the housing (3). [18] High-pressure cleaning device according to one of claims 12 to 17, characterized bythat the cover (5) has an outer wall (13), that the housing (3) has an outer side (17), and that the outer wall (13) is set back from the outer side (17) of the housing (3). [19] High-pressure cleaning device according to claim 18, characterized by that the outer wall (13) in the region of the contact surface (19) is arranged completely within the outer side (17) of the housing (3) in the region of the contact surface (19) with respect to the radial direction (49), and in particular that an outer side of the outer wall (13) in the region of the contact surface (19) has a smaller distance to the insertion axis (47) of the battery compartment (4) than the outer side (17) of the housing (3), measured in the radial direction (49). [20] High-pressure cleaning device according to one of claims 11 to 19, characterized bythat the high-pressure cleaning device (1) has a handle (21) which is arranged on the outer wall (13), and in particular that a penetration opening (22) is formed by the handle (21) in a direction tangential to the outer wall (13).

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