Source: https://patents.justia.com/patent/20110114357
Timestamp: 2020-08-04 06:48:02
Document Index: 653161562

Matched Legal Cases: ['art 19', 'art 19', 'art 19', 'art 19', 'art 19', 'art 7', 'art 7', 'art 19', 'art 7', 'art 19', 'art 19', 'art 7', 'art 18']

US Patent Application for PROTECTIVE COVER ARRANGEMENT FOR AN ELECTRICAL UNIT Patent Application (Application #20110114357 issued May 19, 2011) - Justia Patents Search
Justia Patents Covers Or Face PlatesUS Patent Application for PROTECTIVE COVER ARRANGEMENT FOR AN ELECTRICAL UNIT Patent Application (Application #20110114357)
Jan 24, 2011 - Danfoss Compressors GmbH
The present application is a continuation application of U.S. patent application Ser. No. 12/185,952 filed Aug. 5, 2008, which is entitled to the benefit of Danish Patent Application No. PA 2007 01157 filed on Aug. 14, 2007, each of which is hereby incorporated by reference in its entirety.
The outer cover may be made from a wear resistant material. In the present context the term ‘wear resistant’ should be interpreted to mean that the material of the outer cover is capable of withstanding expected loads, e.g. in terms of impacts, frictional wear, weather conditions, etc. The level of required wear resistance depends on the intended application, in particular the intended position of the device. For instance, a higher level of wear resistance will be required for applications which are intended to be positioned in harsh environments, e.g. outdoors, than for applications which are intended to be positioned in more gentle environments, e.g. indoors.
Alternatively or additionally, the first surface and/or the second surface may be resilient. The resilience of the first surface and/or the second surface is preferably sufficient to allow the surfaces to ‘follow’ a cable passing between the surfaces in a smooth manner. Thereby the protection against moisture and/or dust provided by the inner cover is even further improved.
FIGS. 1a and 1b are perspective views of a cover arrangement according to an embodiment of the invention, shown in an exploded state,
FIGS. 1a and 1b are perspective views of a protective cover arrangement 1 according to an embodiment of the invention, shown in an exploded state, i.e. with the individual parts disassembled from each other. FIG. 1 further shows a compressor 2, shown in FIG. 1a, but not in FIG. 1b, and a starter unit 3, the starter unit 3 being adapted to be mounted on the compressor 2. The cover arrangement 1 is adapted to protect the starter unit 3 as well as connector pins 4 for connecting the starter unit 3 to the compressor 2 from moisture and/or dust.
The cover arrangement 1 comprises an outer cover 5, shown in FIG. 1b, but not in FIG. 1a, and an inner cover 6. The inner cover 6 will be described in further detail below with reference to FIGS. 3-9. Furthermore, FIG. 1b shows a strain relief assembly 19 comprising a first part 19a and a second part 19b, the first part 19a and the second part 19b being detachable. The cover arrangement 1 shown in FIGS. 1a and 1b is assembled in the following manner. First the first part 19a of the strain relief assembly 19 is mounted in mounting hole 20 on the compressor 2. Then the inner cover 6 is mounted on the compressor 2 in such a manner that the connector pins 4 are allowed to pass into an interior part 7 of the inner cover 6 via an opening (not visible) formed in the inner cover 6. The opening is preferably lined by a resilient surface which can be arranged in sealing contact with the compressor 2. This will be described further below.
Next the starter unit 3 is mounted in the interior part 7 of the inner cover 6, and in such a manner that the connector pins 4 are connected to corresponding connecting sockets (not visible) on the starter unit 3. Cables (not shown) used for providing power to the starter unit 3 are allowed to pass through cable entry structure 9 formed on the inner cover 6 and through recesses 21 formed in the first part 19a of the strain relief assembly 19. The cables can thereby connect the starter unit 3 arranged in the interior part 7 of the inner cover 6 with an external power supply (not shown). The second part 19b of the strain relief assembly 19 is then attached to the first part 19a, and screws 22 are tightened in order to fixate the cables. The design of the cable entry structure 9 will be described in further detail below.
FIG. 5 shows the inner cover of FIGS. 3 and 4 seen from behind, i.e. through the large opening 13. The relative positions of the first surface 14 and the additional surfaces 15 are clearly seen. It is also clearly seen that the surfaces 14, define curved passages 16 for introducing cables into the interior part 7 of the inner cover 6.
FIG. 7 is a detail of FIG. 6 illustrating an upper part of the opening 12. It can be seen that the part of the opening which forms a boundary 17 against the second electrical unit when the inner cover 6 is mounted thereon, defines an angle of approximately 15° with respect to a horizontal plane. Furthermore, the opposite part 18 of the opening 12 defines an angle of approximately 3° with respect to the horizontal plane. These angles make it easy to mount the inner cover 6 on the second electrical unit while ensuring that a sealing contact between the inner cover 6 and the second electrical unit is obtained.
1. An inner cover for use in a protective cover arrangement the inner cover comprising:
at least one opening adapted to allow one or more electrical connectors to pass through the inner cover, and
a cable entry structure allowing one or more electrical cables to pass from an exterior of the inner cover to an interior part of the inner cover, said cable entry structure defining one or more curved passages.
Inventors: Kristoffer Riemann Hansen (Broager), Dirk Homuth (Flensburg), Hans Peter Kristensen (Aabenraa)
Application Number: 13/011,997
Current U.S. Class: Covers Or Face Plates (174/66)