Electrical device, in particular inverter

Abstract

Electrical device, in particular inverter, comprising a base part functioning as a housing part for an interior region of the electrical device, and a component arranged in a housing, in particular a maintenance switch, wherein the housing comprises a lower part and an upper part placed onto the lower part, wherein the lower part has a hollow receiving region into which a pin region projecting into a continuous recess of the base part is inserted.

Description

[0001] Electrical appliance, especially inverter

[0002] Description:

[0003] The invention relates to an electrical device, in particular an inverter.

[0004] It is generally known that a cable gland, in particular a PG gland, is used in electrical appliances.

[0005] From US 2019 / 0015582 A1, an infusion pump is known as the closest state of the art.

[0006] A detachable tool holder is known from DE 69916084 T2.

[0007] From DE 69813409 T2 a connection arrangement for a portable device is known.

[0008] An electrical device system is known from DE 102021 130672 A1.

[0009] The invention is therefore based on the objective of further developing an electrical device in a way that is easy to manufacture.

[0010] According to the invention, the problem is solved in the electrical device according to the features specified in claim 1.

[0011] Important features of the invention in the electrical device, in particular the inverter, are that the electrical device has a base part functioning as a housing part for an interior area of ​​the electrical device, and a component arranged in a housing, in particular a maintenance switch,

[0012] wherein the housing has a lower part and an upper part placed on the lower part,

[0013] wherein the lower part has a hollow receiving area into which a pin area projecting into a continuous recess of the base part is inserted,

[0014] ISI \ EIDOPAT 23.02.2026 in particular wherein the continuous recess is substantially rectangular and / or wherein the hollow receiving area extends through the continuous recess.

[0015] A key advantage is the ability to securely and easily attach the housing to the base. This detachability allows for quick and simple replacement with a different component. A version of the electrical device without this component can also be manufactured quickly and easily. Therefore, a highly varied product line of electrical devices can be produced using only a small number of components.

[0016] In an advantageous embodiment, the housing of the electrical appliance comprises at least the base part, a lid part mounted thereon, and a cover, in particular a protective cover. It is advantageous that the sealing element is covered by the cover and / or the lid part and is thus arranged between the base part and the cover and / or lid part.

[0017] In a preferred embodiment, the hollow receiving area protrudes from the lower part on the side of the lower part facing away from the upper part. This design offers the advantage of simple, quick, and secure attachment of the housing.

[0018] In an advantageous embodiment, one or more grooves are formed on the side of the lower part facing away from the upper part.

[0019] wherein one or more projections, each acting as a rail area, are formed on the base part and extend into the groove or grooves,

[0020] In particular, the hollow receiving area is arranged between the two grooves. An advantage of this is that a secure fastening is possible.

[0021] In an alternative advantageous embodiment, one or more elevations, each functioning as a rail area, are formed on the side of the lower part facing away from the upper part.

[0022] wherein one or more grooves are formed on the base part into which the projections extend, in particular wherein the hollow receiving area is arranged between the two projections. An advantage of this is that secure fastening is possible.

[0023] In a preferred embodiment, the groove or grooves extend parallel to the insertion direction of the pin area into the hollow receiving area. This offers the advantage of a secure fastening.

[0024] In an advantageous embodiment, the raised section(s) acting as rail sections extend parallel to the groove(s). This design offers the advantage of achieving secure fastening.

[0025] In a preferred embodiment, a half-pipe section protrudes from the lower part, which is inserted into a continuous recess in a sealing element. The advantage here is that a reliable, tight connection can be achieved.

[0026] In an advantageous embodiment, the tube direction of the half-tube section is aligned parallel to the groove(s) and / or to the rail section(s). The advantage here is that when the housing is inserted, not only the hollow receiving area but also the half-tube section is connected, while the housing is guided by the rail sections engaging in the grooves.

[0027] In an advantageous embodiment, a second continuous recess is formed in an intermediate wall, in particular a wall, which is open towards the lid part and / or the cover, and which is formed on the base part and projects towards the cover part and / or the cover part.

[0028] The sealing element is inserted into the second recess and seals the connection between the half-pipe section and the base section. A key advantage is that the second recess is designed as a wall penetration, allowing electrical cables to pass through the wall. The sealing element ensures a tight and secure seal for these cables.

[0029] In an advantageous embodiment, a bead, in particular a partially circumferential bead, is formed on the intermediate wall at the edge of the second recess, which projects into a groove, in particular a partially circumferential groove, of the sealing element. The advantage here is that the sealing element is securely and tightly fastened.

[0030] In an advantageous embodiment, prominent tab areas are formed on the lower part, each of which projects into a respective recess that is incorporated into the base part and / or that is incorporated into a thickened area of ​​the intermediate wall of the base part.

[0031] The respective tab area rests on the bottom of the respective recess, and the recess defines the respective tab area in a direction perpendicular to the groove(s). An advantage of this design is that the housing is securely attached to the base part by means of the hollow receiving area, which is mounted onto the pin area, and the tab areas.

[0032] In a preferred embodiment, the respective tab area, which is accommodated in the respective recess, is arranged between the aperture and the base part. An advantage of this is that the tab area is securely fastened.

[0033] In an advantageous embodiment, a threaded bore is provided in the bottom of each recess.

[0034] into which a screw with its respective threaded section is screwed, the screw head of which presses the cover or lid part towards the base part, in particular so that the intermediate tab area is fixed. The advantage here is that a secure fastening can be achieved.

[0035] In a preferred design, the respective screw protrudes through the respective tab area. The advantage here is that a secure fastening can be achieved.

[0036] In an advantageous embodiment, the component is connected to a printed circuit board by means of electrical conductors,

[0037] where the circuit board is mounted in the interior area and / or attached to the base part,

[0038] The conductors protrude through and / or are routed through the half-tube section, and in particular, the component is spaced from the circuit board by means of the partition. An advantage of this design is that the component can be optionally added or, in the case of a different variant, cannot be installed and can therefore be omitted. Thus, a high degree of variance within a series of electrical devices can be achieved with a small number of components.

[0039] In a preferred embodiment, the bead is U-shaped. An advantage of this design is that the sealing element is held securely in place in several directions.

[0040] In an advantageous embodiment, the bead follows the U-shaped edge of the second recess continuously. The advantage here is that a secure and tight connection between the base part and the sealing part can be achieved.

[0041] Further advantages arise from the dependent claims. The invention is not limited to the combination of features of the claims. For those skilled in the art, further meaningful combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent, in particular from the problem statement and / or the problem arising from a comparison with the prior art. The invention will now be explained in more detail with reference to a schematic diagram:

[0042] Figure 1 shows an electrical device according to the invention, in particular a converter, in an oblique view, wherein a base part 1 of the electrical device is covered by at least a cover part 2 and a cover 5, in particular a cover part, in particular forming a housing, and a maintenance switch 9 is arranged on the electrical device.

[0043] Figure 2 shows aperture 5, in particular the cover part, in an oblique view.

[0044] Figure 3 shows an aperture equipped as an alternative to aperture 5 in an oblique view.

[0045] Figure 4 shows the maintenance switch together with its housing, comprising a lower part 7 and a top part 6 placed on it, in oblique view.

[0046] Figure 5 shows the area of ​​the base part 1 accommodating the maintenance switch 9 in an oblique view, with a sealing part 52 sealing this area against another interior area of ​​the electrical device, which accommodates a circuit board 54.

[0047] Figure 6 shows the area without the sealing part 52.

[0048] Figure 7 shows the maintenance switch 9 and its housing in an oblique view.

[0049] Figure 8 shows a longitudinal section through the area of ​​the electrical device accommodating the maintenance switch 9.

[0050] As shown in the figures, the electrical device has a tub-shaped base part 1, onto which the lid part 2 and the cover 5, in particular the cover part, are placed.

[0051] A printed circuit board 54, on which electronic components are mounted, is accommodated in the covered, trough-shaped area of ​​the base part 1, particularly for forming an electronic circuit, especially a converter. The generated thermal power loss can be dissipated to the ambient air via cooling fins formed on the cover part 2 and projecting into the surrounding environment. The cover 5 can be configured either with differently designed connector parts (3, 4, 10) as shown in Figure 2 or alternatively with identically designed connector parts 3 as shown in Figure 3.

[0052] With the exception of Figure 3, all figures refer to a first embodiment. The second embodiment is obtained by replacing the aperture 5 shown in Figures 1, 2, and 8 with the aperture shown in Figure 3.

[0053] The base part 1 includes a cover 5 and a lid 2, as well as a maintenance switch 9 and its housing, which consists of a lower part 7 and an upper part 6 mounted on the lower part 7. Specifically, the upper part 6 and the lower part 7 are connected by a clip connection, which ensures the continuous contact of a circumferential seal. This provides a secure and sealed connection.

[0054] The aperture 5 is attached to the base part 1 by means of screws 8, which are screwed into threaded holes in the base part 1 with their respective threaded sections and whose respective screw heads press the aperture 5 towards the base part 1.

[0055] The threaded holes are inserted into thickened areas of the base part 1.

[0056] The housing of the maintenance switch, specifically the upper part 6 and lower part 7, has prominent tab areas 40 that project between the cover 5 and the base part 1. A screw 8 passes through each tab area, so that when the screw 8 is tightened, the tab areas 40 are detachably connected. The cover 5, pressed towards the base part 1, then presses the tab areas 40 onto the base part 1.

[0057] On its side facing away from the upper part 6, the lower part has a hollow receiving area 71 into which a pin area 51 formed on the base part 1 projects. During assembly, the lower part 7 with its hollow receiving area 71 is thus slid onto the pin area 51.

[0058] This sliding motion is guided by the formation of grooves 70 on the side of the lower part 7 facing away from the upper part 6, parallel to the sliding direction. These grooves run parallel to each other and are positioned on projections formed on the base part 1, which function as rail areas 50, in particular guide rail areas. These projections also extend parallel to the sliding direction and thus enable the guided sliding of the hollow receiving area 71 onto the pin area 51.

[0059] At the same time, a protruding half-pipe area 72 formed on the lower part 7 is inserted into a corresponding, in particular semi-circular, recess of a sealing part 52.

[0060] The sealing part 52 has a partially circumferential groove on its outer circumference, which is pushed onto a bead 60 formed on the base part 1, which is also partially circumferential on an inner side of a recess, in particular a half-window-shaped recess.

[0061] The recess is provided in an intermediate wall of the base part 1, wherein the intermediate wall separates a first interior area of ​​the electrical device, which accommodates the circuit board 54, from a second interior area in which the maintenance switch 9 is arranged.

[0062] The sealing part 52 seals from the half-pipe area 72 to the base part 1.

[0063] Thus, electrical lines can be routed from the maintenance switch 9, i.e., from the area enclosed by the housing formed by the upper part 6 and the lower part 7, to the first interior area through the half-pipe area 72.

[0064] The sealing part 52 is inserted into the recess of the partition wall 55, with the bead 60 projecting into the groove of the sealing part 52 guiding the sealing part.

[0065] The half-pipe section 72 of the lower part 7 is covered by a similarly prominent extension of the upper part 6. Thus, the cables from the maintenance switch to the circuit board 54 are protected as they pass through the partition wall and the sealing element 52.

[0066] The pin section 51 projects into a continuous recess in the base part 1, particularly on the side of the base part 1 facing away from the aperture 5. This recess extends through the entire side of the base part 1 facing away from the upper part 7 and / or the aperture 5 and is preferably rectangular. The direction in which the half-tube section 72 projects from the lower part 7, the direction of extension of the grooves 70 and the rail sections 50, and the direction in which the pin section 51 projects into the continuous recess of the base part 1 are all parallel to each other.

[0067] The partition wall 55 has thickenings, each of which has a recess, in the bottom of which a threaded bore is provided for receiving the respective screw 8.

[0068] The recess is open towards the maintenance switch 9, so that a respective tab area 40 can project into the recess, so that this recess limits the respective tab area in the sliding direction and in the direction perpendicular to the sliding direction, which is parallel to the side of the lower part 7 which is arranged away from the upper part 6.

[0069] The sealing part 52 is preferably made of a plastic.

[0070] The upper part 6 and the lower part 7 are preferably each made of plastic, in particular each as a plastic injection molded part.

[0071] The base part 1 is preferably made of metal.

[0072] In further embodiments according to the invention, the sealing part 52 is made of rubber.

[0073] In further embodiments according to the invention, instead of the maintenance switch, another component is arranged in or on the housing formed from the upper part 6 and the lower part 7, in particular a plastic housing, wherein this component is preferably connected to the circuit board 54 by electrical lines.

[0074] In further embodiments according to the invention, only one groove and a raised section functioning as a rail area are formed.

[0075] In further embodiments of the invention, the groove or grooves are formed not on the lower part 7 but on the base part 1, whereas the projections functioning as rail areas 50 are formed on the lower part 7. This reversal, however, does not change the mode of operation, as guidance during insertion remains effective. Reference numeral list

[0076] 1 Basic part

[0077] 2 lid part

[0078] 3 first connector

[0079] 4 second connectors

[0080] 5. Cover, especially cover part 6. Top part

[0081] 7 Lower part

[0082] 8 screws

[0083] 9 maintenance switches

[0084] 10 third connector

[0085] 40 tab area

[0086] 50 rail area

[0087] 51 cone area

[0088] 52 Sealing part

[0089] 53 Threaded hole

[0090] 54 circuit board

[0091] 55 Partition wall

[0092] 60 bulge

[0093] 70 Nut

[0094] 71 Recording area

[0095] 72 Half-pipe area

[0096] 80 clip connection

Claims

Patent claims:

1. Electrical appliance, in particular inverter, comprising a base part functioning as a housing part for an interior area of ​​the electrical appliance, and a component arranged in a housing, in particular a maintenance switch, wherein the housing has a lower part and an upper part placed on the lower part, wherein the lower part has a hollow receiving area into which a pin area projecting into a continuous recess of the base part is inserted, 2. Electrical device according to claim 1, in particular wherein the through-hole is rectangular or substantially rectangular and / or wherein the hollow receiving area projects through the through-hole. characterized by the fact that The housing of the electrical appliance comprises at least the base part, a lid part placed on it and a cover, in particular a cover part.

3. Electrical appliance according to any of the preceding claims, characterized by the fact that The hollow receiving area protrudes from the lower part on the side of the lower part facing away from the upper part.

4. Electrical appliance according to any of the preceding claims, characterized by the fact that on the side of the lower part facing away from the upper part, one or more grooves are formed on the lower part, wherein one or more projections, each acting as a rail area, are formed on the base part and extend into the groove or grooves, in particular wherein the hollow receiving area is arranged between the two grooves, or that On the side of the lower part facing away from the upper part, one or more elevations are formed, each serving as a rail area. wherein one or more grooves are formed on the base part into which the projections extend, in particular, wherein the hollow receiving area is arranged between the two elevations.- 14- 5. Electrical appliance according to any of the preceding claims, characterized by the fact that the groove or grooves extend parallel to the insertion direction of the pin area into the hollow receiving area and / or that The elevation(s) acting as rail area extend parallel to the groove or grooves.

6. Electrical appliance according to any of the preceding claims, characterized by the fact that A half-pipe section protrudes from the lower part, which is inserted into a continuous recess of a sealing part.

7. Electrical appliance according to any of the preceding claims, characterized by the fact that The pipe direction of the half-pipe area is aligned parallel to the groove or grooves and / or to the rail area(s).

8. Electrical appliance according to any of the preceding claims, characterized by the fact that in an intermediate wall, in particular a wall, formed on the base part and projecting towards the cover part and / or the panel, a second continuous recess is formed, which is open towards the cover part and / or the panel, the sealing part is inserted into the second recess and seals from the half-pipe area to the base part.

9. Electrical appliance according to any of the preceding claims, characterized in that- 15-a bead, in particular a partially circumferential bead, is formed on the intermediate wall at the edge of the second recess, which projects into a groove, in particular a partially circumferential groove, of the sealing part.

10. Electrical appliance according to any of the preceding claims, characterized by the fact that The lower part has protruding tab areas, each of which extends into a respective recess that is incorporated into the base part and / or that is incorporated into a thickened area of ​​the intermediate wall of the base part. wherein the respective tab area rests on the bottom of the respective recess and the recess limits the respective tab area in a direction perpendicular to the groove or grooves.

11. Electrical appliance according to any of the preceding claims, characterized by the fact that The respective tab area is positioned in the respective recess between the aperture and the base part.

12. Electrical appliance according to any of the preceding claims, characterized by the fact that A threaded hole has been drilled into the bottom of each depression. into which a screw with its respective thread area is screwed, the screw head of which presses the cover or lid part towards the base part, in particular so that the intermediate tab area is fixed.

13. Electrical appliance according to any of the preceding claims, characterized by the fact that the respective screw protrudes through the respective tab area.

14. Electrical appliance according to any of the preceding claims, characterized by the fact that the component is connected to a printed circuit board by means of electrical conductors,- 16- wherein the printed circuit board is mounted in the interior and / or attached to the base part, where the lines protrude through and / or are routed through the half-pipe area, in particular wherein the component is spaced away from the circuit board by means of the partition.

15. Electrical appliance according to any of the preceding claims, characterized by the fact that the bulge is U-shaped and / or that the bulge follows the U-shaped edge of the second recess without interruption.

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