Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D29/00—Arrangement or mounting of control or safety devices
  • F25D29/005—Mounting of control devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C7/00—Stoves or ranges heated by electric energy
  • F24C7/08—Arrangement or mounting of control or safety devices
  • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination

Definitions

• the invention relates to a control box assembly having a control box, a mounting plate having a front side, a rear side and an opening in which the control box is arranged, a frame and a holding device.
• Such a control box arrangement is known from WO 03/081153 A1.
• the known control box arrangement is used in household appliances, for example in a refrigerator, to set refrigerator functions.
• the mounting plate is formed by the front of the door of the refrigerator or a plate on the front of the refrigerator.
• a back cover is placed on the back of the mounting plate.
• polyurethane is pumped into the space on the back to secure the back cover.
• the control box is inserted and held by mounting the frame in the back cover.
• Such assembly is complex and requires a variety of items.
• the opening in the mounting plate has a relatively complicated contour.
• the back of the mounting plate must be accessible to mount the back cover.
• the invention has for its object to enable easy installation of a control box arrangement.
• control box arrangement of the type mentioned above in that the holding device has a plurality of bars which rest against the back of the mounting plate, wherein at least one bolt is displaced by the interaction of the control box and frame in a space on the back of the mounting plate.
• control box assembly is required for mounting only borrowed access from the front of the mounting plate. From the front Her can then use the control box and the frame in the opening, wherein the insertion of a movement of at least one bolt is triggered, which is displaced by the rear mounting plate. As a result, the bolt with the mounting plate forms a positive connection, without having to access the back of the mounting plate. Since you have to use the control box and the frame anyway in the mounting plate, no additional assembly step is required for attaching the control box in the mounting plate. With the insertion, the attachment is done so to speak. It also requires no other fasteners, such as screws, nuts or the like. Even tools are not needed for assembly.
• the control box and the frame are connected by a latching connection.
• the latching connection prevents the control box and the frame from being accidentally disconnected. Such disconnection could interfere with the mounting of the control box in the mounting plate.
• the latching connection can be solved by the application of external forces. Such forces are not to be feared in normal operation. This is especially true when the control box assembly is used in home appliances, such as a refrigerator, a washing machine, a clothes dryer, a stove, a hood, an ironing machine or the like, in which the control box is only required for setting functions.
• the locking connection is designed so that it can easily absorb the forces occurring during adjustment work.
• the latch engages around the mounting plate at the edge of the opening.
• the bolt is therefore not only on the back of the mounting plate, but the bolt or an associated element also engages the front of the mounting plate.
• the mounting plate is clamped by the combination of control box and frame so to speak. This results in a good
• the bolt has a curvature in the region of the edge on the side facing the edge.
• the bolt is able to encompass different thickness mounting plates.
• the mounting plate protrudes into the vault. It is advantageous if the bolt has a certain flexibility, at least in the region of the curvature. However, this should be
• the bar has a holding dimension between the front and the rear relative to the thickness of the mounting plate, and the mounting plate has a thickness corresponding to the degree of holding ⁇ 35%. Due to the design of the bolt, which engages around the mounting plate at the edge of the opening, it is therefore possible to use different thickness mounting plates. Accordingly, one can use a control box assembly in different applications.
• the bolt has a tolerance compensation, which is up to 1 mm. Accordingly, the dimensions of the opening in which the control box and the frame are inserted, by up to + 0.5 mm from a
• Desired dimension deviate, without affecting the installation of the control box in the mounting plate.
• Tolerance compensation also depends on the size of the control box. For smaller control boxes, the tolerances are absolutely smaller.
• the latch is arranged on the frame and is displaced by the control box on the back of the mounting plate.
• the frame is first mounted on the control panel. In the simplest case, this can be achieved by inserting the frame into the opening of the mounting plate. Then, when the control box is inserted into the frame, the latch or bars relative to the frame is displaced to the outside, so that they in the space on the Get back of the mounting plate and form a positive connection with the mounting plate.
• the frame bears against the front side of the mounting plate, at least in the region of the latches.
• the frame forms the part of the corresponding bolt, which engages around the mounting plate in the region of the edge of the opening. Additional measures are not required.
• the latch is arranged on the control box and is displaced by the frame on the back of the mounting plate.
• the assembly is done in reverse order. First the control box is inserted into the opening and then the frame, the frame displacing the latch away from the control box and into the space at the back of the mounting plate.
• the latch on its side facing the control box on a projection.
• the projection can be used to displace the latch a sufficient distance into the space on the back of the mounting plate.
• the frame has a cooperating with the projection inclined surface. This facilitates the assembly.
• the slope can also be formed only when the bolt presses with its projection on the frame.
• the latch on a bias on the control box out.
• the control box has an at least partially transparent cover which is arranged on a front side of the control box and extends with a side wall portion at least partially on at least one side wall, wherein the side wall portion acts on the latch.
• the cover of the control box is clamped by the latch, so to speak on the control box itself, so that the durability of the cover on the control box is improved.
• the frame has a latching device which is latched to the mounting plate.
• this embodiment has the advantage that you can tentatively connect the frame with the mounting plate. This facilitates handling. After inserting the frame into the opening on the mounting plate, the installer has both hands free to subsequently mount the control box without the risk of the frame falling out of the mounting plate.
• FIG. 1 shows a first embodiment of a control box arrangement in a perspective exploded view
• FIG. 3 is an enlarged view of a portion of Fig. 2 in section
• FIG. 4 shows a representation corresponding to FIG. 3 with inserted control box
• FIG. 5 shows the control box arrangement in a perspective view in the mounted state
• 6 is a detail enlargement of FIG. 5
• Fig. 8 shows a second embodiment of a control box arrangement in an exploded perspective view
• FIG. 9 is a sectional view of the control box assembly of FIG. 8.
• a control box assembly 1 has a control box 2 provided with a transparent cover 3.
• the transparent cover 3 (which need not be transparent everywhere) has a side wall portion 4 which is guided over a side wall of the control box 2.
• the cover 3 is connected to fastening points 5 with the control box 2.
• the invention will be described below with reference to the use of the control box assembly 1 in conjunction with a refrigerator.
• the control box 2 includes an electronic control unit for the refrigerator and a display that is visible through the transparent cover 3 therethrough. Furthermore, the control box 2 may also contain operating elements, for example in the form of buttons or the like, which can be actuated through the transparent cover 3. A cable that connects the control box 2 with other elements of the refrigerator is not shown for reasons of clarity.
• the control box 2 is to be mounted in a mounting plate 6.
• the control plate 6 forms, for example, the front of a refrigerator door or the front of a refrigerator housing.
• the mounting plate 6 can therefore also be referred to as a "chassis”.
• the control box assembly 1 further comprises a frame 7, which in the embodiment of Figs. 1 to 7 between the control box 2 and the Mounting plate 6 is arranged when the control box 2 is installed in the mounting plate 6.
• the mounting plate 6 For receiving the control box 2 and the frame 7, the mounting plate 6 has an opening 8.
• the opening 8 is surrounded by an edge 9.
• the opening 8 may simply have a rectangular shape or another shape adapted to the control box 2. Incidentally, a processing of the mounting plate 6 is not required.
• the control box 2 has a groove 10 in the side wall section 4 of the cover 3. Only one groove 10 is visible. On the groove opposite side of the control box 2, a corresponding groove is present.
• the frame 7 has a latching projection 11 which engages in the groove 10 when the control box 2 is inserted in the frame 7. By the interaction of the latching projection 11 with the groove 10, a latching connection is formed, which can withstand the normal forces occurring in normal use.
• the frame 7 has a latching hook 12, which engages behind a rear side 13 of the mounting plate 6.
• a latching hook 12 which engages behind a rear side 13 of the mounting plate 6.
• Mounting plate 6 is the frame 7 at a circumferential contact surface 15 at.
• the latching hook 12 can be guided past the mounting plate 6 because the frame 7 has sufficient elasticity.
• the side of the frame 7 facing the latching hook 12 is deformed somewhat inwardly and can then spring outward again.
• the frame 7 also has a plurality of latches 16, which are connected via an elastic web 17 with the frame 7.
• the bars 16 have by the web 17 a bias toward the interior of the frame 7, ie where later the control box 2 is placed.
• the latch 16 can be pushed through openings 18 in a side wall 19 of the frame 7 when the control box 2 is inserted into the frame 7.
• the latch 16 has in the region of the web 17 a curvature 20, in which the mounting plate 6 engages when the latch 16 has been moved by the control box 2 in a space at the back 13 of the mounting plate 6. Due to the curvature 20, it is possible to use the same frame 7 with different mounting plates 6, which differ in their thickness.
• the latches 16 are provided, for example, for a certain thickness of the plate 6, which is hereinafter referred to as "holding gauge".
• the bars 16 can provide a sufficiently strong connection between the frame 7 and the mounting plate 6 even if the thickness of the plate is up to 35% larger or smaller than this holding dimension.
• the opening 8 must not be made with too great accuracy.
• the opening 8 may have a tolerance in the order of up to ⁇ 0.5 mm both in length and in width, depending on the size of the control box.
• the frame 7 is inserted into the opening 8 until the contact surface 15 rests against the front side 14 of the mounting plate 6.
• the latching hook 12 engages behind the rear side 13 of the mounting plate 6.
• the frame 7 is thus provisionally attached to the mounting plate 6.
• control box 2 is inserted into the frame 7 in this embodiment.
• the control box 2 then comes to rest against the inwardly projecting latches 16 and presses them out through the openings 18 in the wall 19 to the outside, so that the latches 16 engage under the rear side 13 of the mounting plate 6.
• the latch 16 rest only on the side wall of the control box 2. So it is not necessary, the latch 16 in any way to arrange behind the bottom of the control box 2. This makes it possible to use control boxes 2 with different heights.
• control box 2 If the control box 2 has been inserted deep enough in the frame 7, then the locking projection 11 comes on the frame 7 in engagement with the groove 10 on the control box 2, so that the control box 2 is locked to the frame 7. The control box 2 is then held captive in the frame 7 and permanently holds the latch 16 in the position shown in Fig. 6, so that the frame 7 can not be removed from the mounting plate 6.
• FIGS. 8 and 9 Another embodiment is shown in Figs. 8 and 9. Identical elements are here provided with the same reference numerals as in FIGS. 1 to 7.
• the latch 16 are arranged on the control box 2.
• the bars 16 have at their upper end a tab 22.
• the control box 2 is first inserted into the opening 8 of the mounting plate 6.
• the tabs 22 of the latch 16 on the front side 14 of the mounting plate 6. In a horizontal position of the mounting plate 6 so that a preliminary positioning of the control box 2 is ensured relative to the mounting plate 6.
• the frame 7 is inserted into a gap between the control box 2 and the mounting plate 6.
• the frame 7 has a number of latches 16 corresponding number of projections 23. These projections 23 are provided with an inclined surface 24.
• the latch 16 has a from the edge 9 of Opening 8 pointing away projection 25 on which the inclined surface 24 comes to rest.
• the inclined surface 24 pushes the projection 25 to the outside, so that the bolt 16 in turn surrounds the back 13 of the mounting plate 6.
• the control box 2 is held with sufficient strength in the mounting plate 6.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Casings For Electric Apparatus (AREA)
• Toilet Supplies (AREA)
• Patch Boards (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2008
  • 2008-10-01 DE DE102008049864A patent/DE102008049864A1/de not_active Withdrawn
• 2009
  • 2009-09-29 CN CN2009801392337A patent/CN102171525A/zh active Pending
  • 2009-09-29 WO PCT/DK2009/000214 patent/WO2010037390A2/de not_active Ceased
  • 2009-09-29 US US13/122,049 patent/US8575497B2/en not_active Expired - Fee Related
  • 2009-09-29 EP EP09776203A patent/EP2342516A2/de not_active Withdrawn
  • 2009-09-29 BR BRPI0920471A patent/BRPI0920471A2/pt not_active IP Right Cessation
  • 2009-09-29 MX MX2011003484A patent/MX2011003484A/es active IP Right Grant

Non-Patent Citations (1)

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