Base module and base module device for a heat pump dryer, heat pump dryer and method for manufacturing a base module device

Abstract

Base module (106) for a heat pump dryer (100), wherein the base module (106) has a compressor receiving area (200) with at least one substantially dome-shaped receiving element (202) for receiving a compressor foot (302) of a compressor (108), characterized in that the receiving element (202) has a through-opening (204) extending between a compressor side (206) of the base module (106) and a rear side (208) of the base module (106) opposite the compressor side (206), which is designed to receive a threaded section (307) of a screw (305) and a threaded section (309) of an insert nut (308), wherein the receiving element (202) has an end facing the compressor side (206) for placing a lower end of a screw head (306) of the screw (305), and wherein on the rear side (208) of the The floor module (106) has a recess (504) which is shaped for this purpose,to accommodate a disc-shaped bearing surface (310) of the insert nut (308).

Description

[0001] The invention relates to a floor module and a floor module device for a heat pump dryer, a heat pump dryer and a method for manufacturing a floor module device for a heat pump dryer. State of the art

[0002] The refrigeration compressors of heat pump dryers are mounted in the base module assembly, which typically houses the refrigeration unit. The mounting must be sufficiently robust to securely hold the relatively heavy compressors both during operation under vibration and to withstand stresses encountered during transport. These include, for example, vibrations, and impacts can also cause short but very high loads, which are tested in appropriate shock tests. A large plastic component, referred to below as the base module, is typically used as the support structure for the assembly.

[0003] EP 2 743 394 A1 describes a mounting of a compressor of a heat pump dryer.

[0004] The invention is based on the objective of creating an improved floor module and an improved floor module device for a heat pump dryer, an improved heat pump dryer and an improved method for manufacturing a floor module device for a heat pump dryer.

[0005] According to the invention, this problem is solved by a base module and a base module device for a heat pump dryer, a heat pump dryer, and a method for manufacturing a base module device for a heat pump dryer with the features of the main claims. Advantageous embodiments and further developments of the invention are described in the dependent claims.

[0006] The advantages achievable with the invention lie in the fact that a secure attachment of the compressor to the base module can be realized with minimal material expenditure. Such an attachment withstands the usual shock, tip-over, and drop tests, which generate considerable accelerations on the base module assembly. In conjunction with the high mass of the refrigeration compressor (approximately 7–8 kg) in the household appliance and its high center of gravity, significant forces and moments are exerted, which the compressor mounting described here, as the interface to the compressor, can withstand.

[0007] The described approach takes into account the limited space available in the heat pump dryer due to the large components of the refrigeration circuit and, according to one embodiment, requires no more installation space for the compressor connection than current standard solutions. Furthermore, the described approach considers the fact that compressors from different manufacturers are used in the refrigeration circuit. While the hole pattern of the compressor base plate is the same for different compressor types with similar displacement volumes, different compressor feet with varying heights are used. This can be accommodated in the compressor connection described here.

[0008] Advantageously, the described approach does not require a sheet metal tray into which the actual compressor is screwed, and which in turn is then screwed into the base module. This keeps component costs and assembly effort low.

[0009] A base module for a heat pump dryer has a compressor receiving area with at least one substantially dome-shaped receiving element for receiving a compressor foot of a compressor, wherein the receiving element has a through-opening extending between a compressor side of the base module and a rear side of the base module opposite the compressor side, which is designed to receive a threaded section of a screw that can be inserted from the compressor side and a threaded section of an insert nut that can be inserted from the rear side of the base module.

[0010] A heat pump dryer can be a household appliance with a heat pump for drying laundry. It can also be a washer-dryer, in which laundry can be washed before drying. A base module is a support element for components of the heat pump dryer, such as the compressor. The base module can be made of plastic, for example. The threaded sections of the screw and the insert nut can be screwed together to attach the compressor base to the support element. The screw and the insert nut can be inserted into the opening from opposite sides. For example, the threaded section of the screw can be inserted from the compressor side and the threaded section of the insert nut from the back of the base module, or vice versa.

[0011] A recess can be provided on the back of the base module, shaped to accommodate a disc-shaped bearing surface for the insert nut. This recess allows for a flush finish between the insert nut and the underside of the base module.

[0012] For example, the recess can be cone-shaped, allowing an insert nut with a particularly stable and rigid conical bearing surface to be accommodated.

[0013] According to one embodiment, a wall of the recess can have at least one stop for a fixing element of the insert nut. The fixing element can be a lug on the bearing surface of the insert nut that engages in the stop. In a position where the insert nut is inserted into the through-hole, this prevents the insert nut from rotating while the screw is being tightened.

[0014] The stop can be shaped to form a bayonet fitting when used in conjunction with the fixing element, securing the insert nut to the base module. A bayonet fitting can provide a positive-locking connection, ensuring the insert nut is held securely in the through-hole. Such a connection is particularly helpful for one-handed assembly.

[0015] The base module can also have a clamping rib designed to secure the insert nut to the base module. A clamping rib can create a positive connection, allowing the insert nut to be held securely in the through-hole. Such a connection is particularly helpful for one-handed installation.

[0016] According to one embodiment, the rear side of the base module can have an annular relief notch to relieve stress on the base module in the area of ​​a disc-shaped bearing surface of the insert nut. Because the edge of the insert nut is exposed due to the relief notch, local stress concentrations, such as notch stresses, can be reduced.

[0017] The base module can have a recess on the compressor side to accommodate a compressor base comprising three compressor feet, with three receiving elements for the three compressor feet being arranged within the recess. The recess allows the upper part of the receiving elements to be flush with the top surface of the base module. The three compressor feet, inserted over the receiving elements, can thus be flush with the top surface of the base module. Furthermore, the recess can increase the stability of the base module.

[0018] The base module can be a plastic injection-molded part. Counter geometries for screws and insert nuts can be molded into this cost-effectively manufactured plastic injection-molded part. Furthermore, a plastic injection-molded part can be made stable through numerous bracing elements and lightweight through numerous cavities.

[0019] A floor module device for a heat pump dryer has the following features: a so-called floor module; a compressor, wherein a compressor foot of the compressor is received by the receiving element of the base module; a screw, wherein a threaded section of the screw is inserted, for example, from a compressor side of the base module into the through-opening of the receiving element; and an insert nut, wherein a threaded section of the insert nut is inserted, for example, from a rear side of the base module opposite the compressor side into the through-opening of the receiving element.

[0020] Such a floor module device can be used as a replacement for known floor module devices in a heat pump dryer.

[0021] A corresponding heat pump dryer comprises a heat pump and a floor module, the compressor of which is part of the heat pump. Due to the stable mounting of the compressor, such a heat pump dryer can be very insensitive to vibrations.

[0022] A method for manufacturing a floor module device for a heat pump dryer comprises the following steps: Providing a specified ground module; Arranging a compressor on the compressor side of the base module, wherein a compressor foot of the compressor is received by the receiving element of the base module; Inserting a threaded section of a screw into the through-hole of the receiving element; Inserting a threaded section of an insert nut into the through-hole of the receiving element; and

[0023] Screw the screw into the insert nut to attach the compressor to the base module.

[0024] Exemplary embodiments of the invention are shown purely schematically in the drawings and are described in more detail below. It shows

[0025] Fig. 1 a schematic representation of a heat pump dryer according to an exemplary embodiment;

[0026] Fig. 2 a schematic representation of a section of a floor module for a heat pump dryer according to an exemplary embodiment;

[0027] Fig. 3 a schematic representation of a floor module device for a heat pump dryer according to an exemplary embodiment;

[0028] Fig. 4 an exploded view of a ground module device with a top view of the ground module according to an exemplary embodiment;

[0029] Fig. 5 an exploded view of a floor module device with a bottom view of the floor module according to an exemplary embodiment;

[0030] Fig. 6 a perspective bottom view of a floor module device in the assembled state according to an exemplary embodiment;

[0031] Fig. 7 a schematic top view of a floor module device according to an exemplary embodiment;

[0032] Fig. 8 a cross-section of a section of a floor module device comprising a receiving element according to an exemplary embodiment;

[0033] Fig. 9 a schematic representation of a relief notch of a floor module according to an exemplary embodiment; and

[0034] Fig. 10 a flowchart of a method for manufacturing a floor module device for a heat pump dryer according to an exemplary embodiment.

[0035] Fig. Figure 1 shows a schematic view of a heat pump dryer. 100 according to one exemplary embodiment. The heat pump dryer 100 a drum 102 for holding laundry to be dried. An interior of the heat pump dryer. 100 is from a case 104 enclosed, which also has a filling opening for filling the drum 102 is arranged with laundry inside the case. 104 is located in a lower section of the heat pump dryer 100 a floor module 106 arranged. The floor module 106 is firmly attached to the housing 104 connected. The floor module 106 can be used as a base element of the heat pump dryer 100 are understood, and according to one embodiment are located within the housing 104 over at least approximately the entire floor area of ​​the heat pump dryer 100 extend the ground module 106 is shaped to accommodate a compressor108 to record.

[0036] The compressor 108 is part of a heat pump in the heat pump dryer 100 . Besides the compressor 108 The heat pump has an evaporator. 110 , a capacitor 112 and a throttle 114 up. The floor module 106 can be trained to operate the compressor alongside 108 further elements 110 , 112 , 114 to absorb the heat pump. During operation of the heat pump dryer, process air is drawn from the drum. 102 to the evaporator 110 guided and in the evaporator 110 dehumidified. From the evaporator 110 The process air is directed to the condenser 112 guided and heated by the capacitor 112 The process air is fed into the drum 102 This is done to absorb moisture from the laundry. In a refrigerant circuit, a refrigerant is circulated from the evaporator. 110 to the compressor108 guided in the compressor 108 The gaseous refrigerant is compressed and fed in compressed form to the condenser. 112 The gaseous refrigerant is supplied by condensing it. The liquefied refrigerant is then transferred to the condenser. 112 via the throttle back to the evaporator 110 guided and in the evaporator 110 evaporates.

[0037] Since compressors 108 Generally weighing around 7–8 kg, it is important to consider the compressor. 108 to fix sufficiently to the base module so that the compressor 108 during the operation of the heat pump dryer 100 , for example, due to vibrations, it must remain securely locked in place. Adequate securing of the compressor is also essential during transport. 108 This must be ensured.

[0038] Fig. Figure 2 shows a schematic representation of a section of a floor module. 106for a heat pump dryer 100 according to one exemplary embodiment. This can be based on the following: Fig. 1 described floor module 106 trade. The ground module 106 It can also be described as a plastic compressor mount. Accordingly, the floor module can be... 106 It can be made of plastic, for example as an injection-molded part. Alternatively, the base module can 106 it may also be made from another suitable material.

[0039] The floor module 106 has a recording area 200 for a compressor. Within the recording area. 200 can, as demonstrated by Fig. 1 shown, a compressor on the floor module 106 to be attached. The floor module 106 It features a dome-shaped, here cylindrical, receiving element. 202 for receiving a compressor foot of the compressor. In the center of the receiving element 202is a through-opening 204 arranged. The passageway 204 extends between one compressor side 206 and a reverse side 208 of the floor module 106 The recording element 202 is through a through opening 204 dome-shaped bulge on the compressor side 206 of the floor module 106 shaped.

[0040] The passageway 204 is designed to accommodate threaded sections of a screw and an insert nut, which are used to attach the compressor base to the mounting element 202 to attach.

[0041] Fig. Figure 3 shows a schematic representation of a floor module device 300 for a heat pump dryer according to an exemplary embodiment. The floor module device 300 includes a floor module 106 This can involve the following: Fig. 2 described floor modules 106 act. Furthermore, the ground module device 300 a compressor 108 , at least one screw 305 and at least one insert nut 308 on.

[0042] The compressor 108 has at least one compressor foot 302 up. The compressor base 302 extends along the bottom of the compressor 108 starting from a basic body of the compressor 108 radially outwards. The compressor base 302 According to one embodiment, it is part of the compressor. 108 The compressor base 302 According to one embodiment, it is rigid, for example via a material-bonded, form-fit or force-fit connection with the base body of the compressor. 108 connected. The compressor base 302 According to one embodiment, it is formed by a section of a base plate of the compressor. 108shaped. Such a base plate can be considered an inseparable part of the compressor housing. 108 can be viewed and, for example, connected to the compressor's base body via a welded connection. 108 be connected.

[0043] The compressor 108 is within the recording area of ​​the ground module 106 on the compressor side 206 of the floor module 106 arranged. The compressor base is located there. 302 from the recording element 202 recorded. The compressor base 302 It has a through-opening. The dome-shaped receiving element 202 extends through the opening in the compressor base 302 Thus, the compressor 108 directly, for example without an additional one that crosses the bottom of the compressor. 108 extending sheet metal part, with the base module 106 tied together.

[0044] The screw 305has a screw head 306 and a threaded section 307 up. The threaded section 307 the screw 305 is from the compressor side 206 of the floor module 106 here into the through-opening of the receiving element 202 inserted. The insert nut 308 has a threaded section 309 and a flat surface 310 on. The contact surface 310 the insert nut 308 In one embodiment, the bearing surface can be slightly conical rather than flat to achieve higher bending stiffness in the components. 310 is on the back 208 of the floor module 106 on. The threaded section 309 the insert nut 308 is from the back 208 of the floor module 106 here into the passageway 204 of the recording element 202 introduced. The threaded section 307the screw 305 and the threaded section 309 the insert nut 308 They interlock. This secures the compressor base. 302 on the floor module 106 fixed. For example, the threaded section 307 the screw 305 to create an external thread and at the thread section 309 the insert nut 308 for an internal thread. In this case, the through-hole has 204 an inner diameter that is greater than or equal to the outer diameter of the threaded section 309 the insert nut 308 is. According to one embodiment, the through-opening has 204 at the end facing the rear – at least over a length of the threaded section 309 the insert nut 308 – a larger inner diameter than at the end facing the compressor side. As shown below with reference to Fig. As shown in section 4, the compressor 108typically more than one compressor foot 302 in this case, the floor module 106 one of the number of compressor feet 302 corresponding number of recording elements 202 open, so that each compressor foot 302 from a recording element 202 has been recorded.

[0045] Optionally, an elastic element, for example in the form of a rubber foot, is provided in the area of ​​the receiving element. 202 between the compressor base 302 and the floor module 106 is arranged.

[0046] Fig. Figure 4 shows an exploded view of a ground module device 300 with a top view of the floor module 106 according to one exemplary embodiment.

[0047] This can involve the following: Fig. 3 described floor module device 300 act. According to this embodiment, the compressor 108 three compressor feet302 Accordingly, the floor module 106 three recording elements 202 on, with each of the recording elements 202 a screw 305 and an insert nut 308 is assigned. Furthermore, the floor module device has 300 three rubber feet 400 with three through-openings 401 on, which are also from the recording elements 202 to be recorded and thereby in the mounted state between the compressor feet 302 and the floor module 106 are arranged.

[0048] The floor module 106 has a depression 402 on, in which the three recording elements 202 for the three compressor feet 302 of the compressor 108 are arranged. The depression 402 It essentially has the shape of a triangle, with the three receiving elements 202are arranged distributed across the three corners of the triangle. In the middle of the depression 402 is a bulge 404 towards the compressor 108 realized. The bulge 404 It has an essentially triangular shape, the corners of which point towards the three receiving elements 202 extend. A central area 405 , which are from the bulge 404 enclosed, is like a through hole through the base module 106 executed.

[0049] The compressor 108 has an essentially triangular base 406 , for example a base plate, on whose three corners the three compressor feet are located. 302 of the compressor 108 are arranged. The compressor feet 302 of the compressor 108 each have a round hole 407 on, which is designed to pass over one of the recording elements 202 with a rubber foot slipped over it400 to be turned inside out. Through the hole 407 one of the compressor feet 302 Each of the screws 305 into the through-opening of the associated receiving element 202 introduced... Furthermore, at the upper end of the compressor... 108 and on one side of the compressor 108 Connection lines 408 arranged for refrigerant. At the compressor 108 It could be a commercially available compressor designed for use in a heat pump dryer. 108 act.

[0050] Each of the insert nuts 308 indicates the edge of the support surface 410 two fixing elements 412 for example, two tabs that prevent the insert nut from turning. 308 prevent if the insert nut 308 with the assigned screw 305 It is screwed together.

[0051] According to one embodiment, the receiving elements are202 as mounting geometries for the refrigeration compressor 108 with associated decoupling dampers 400 , for example in the form of rubber feet, as an integral part of the floor module 106 executed. The floor module is included. 106 molded as a plastic component, which includes three dome-shaped receiving elements. 202 is designed, which includes the rubber feet 400 of the compressor 108 absorb the large forces acting on the compressor base plate. 406 To absorb impact loads, the impact is not directly absorbed by the dome-shaped receiving elements. 202 They are not screwed together, but rather consist of three disc-shaped insert nuts. 308 provided, whose diameter is larger than the diameter of the compressor feet 302 This makes it possible to use the more stable insert nuts. 308, which according to one embodiment are designed as metal components, to distribute the point-occurring forces over a significantly larger area, and in the base module 106 to achieve sufficiently thick walls without encroaching on the available construction space.

[0052] For the large-area dissipation of the forces occurring into the soil module 106 According to one embodiment, three disc-shaped metal components are used. 308 with an integrated thread 309 used, which are referred to below as insert nuts 308 be referred to as follows. Fig. As can be seen in section 5, this is the floor module component. 106 According to one embodiment, it is formed as a standard injection-molded component in which the corresponding counter-geometry for the insert nuts is incorporated. 308 can be shaped.

[0053] The following section describes possible special features of the insert nuts. 308described according to different embodiments, which can also be combined with each other.

[0054] According to one embodiment, the insert nuts have 308 via a geometric element 414 , which enables their unambiguous positioning in an assembly aid, in the example implemented as two opposing notches attached to the circumference.

[0055] According to one embodiment, the insert nuts have 308 via a geometric element 412 , which occurs during the tightening of the fastening screws 305 prevents the insert nuts from 308 in the floor module 106 spin freely. A corresponding counter-geometry, in Fig. 5 shown, is in the floor module 106 attached. In the example shown, these are two opposing prongs attached to the circumference, which fit into corresponding recesses, in Fig. 5 shown, in the floor module106 grab.

[0056] According to one embodiment, geometric elements are present that provide a self-retaining mechanism for the insert nuts. 308 in the floor module 106 This prevents the insert nuts from... 308 from the floor module 106 fall out again and one-handed assembly of the fastening screws 308 This is made possible. Two solutions are proposed for self-retention. The first solution involves fixing the insert nuts. 308 via a bayonet fitting in combination with the recesses for the noses 412 the anti-rotation device. The orientation is chosen so that the torque resulting from tightening the fastening screws is reduced. 305 This results in the bayonet being positioned in the closing direction, thus preventing the pre-fixed connection from loosening during assembly. This solution represents a positive-locking connection. A second solution for self-retaining the insert nuts.308 is a fixing of the insert nuts 308 via the ground module 106 Attached clamping ribs. The insert nuts 308 can then move axially into the base module 106 They will be pressed in. This solution represents a force-fit connection.

[0057] It is taken into account that compressor feet have different heights. 302 They can be used. To accommodate two different installation heights, the mounting domes of the mounting elements are designed accordingly. 202 for the shortest used installation height of the rubber feet 400 dimensioned. For the taller rubber feet 400 Special screws are used which have a stepped collar, the diameter of which is equal to that of the receiving domes of the receiving elements. 202 This bridges the difference in dimensions. A special head shape with a wider flange prevents the rubber feet from slipping out. 400from the screw connection in case of excessive stress. The screw head 306 It thus takes over the function of a washer as an additional component, which can therefore be omitted.

[0058] Fig. Figure 5 shows an exploded view of a ground module device 300 with bottom view of the floor module 106 according to one exemplary embodiment. This can be based on Fig. 4 described floor module device 300 trade. Unlike Fig. 4 is the floor module 106 Shown here from below. The floor module 106 is here referred to as a plastic injection molded component 500 realized. The injection-molded plastic component 500 features numerous struts 501 and cavities arranged in between 502 This design ensures that the injection-molded plastic component 500It is lightweight and stable. It features a centrally located, essentially triangular geometry. 503 forms the back side of the bulge Fig. 4. The plastic injection molded part 500 exhibits three essentially tapered ends of the geometry 503 three round cutouts 504 on, which are shaped to hold the insert nuts 308 from below so that the contact surfaces 310 the insert nuts 308 flush with the back 208 of the floor module 106 close or opposite the back 208 are recessed. For receiving the fixing elements 412 the contact surface 310 the insert nuts 308 The wall shows the recess 506 two attacks 506 on.

[0059] Fig. Figure 6 shows a perspective bottom view of a floor module device 300in the assembled state according to an exemplary embodiment. This can be based on the following: Fig. 5 described floor module device 300 trade. Unlike Fig. 5 are the insert nuts 308 into the passageway 204 inserted. This view shows the installation situation of the insert nuts from below. 308 are the insert nuts 308 into the recesses 504 introduced, whereby the fixing elements 412 at the contact surface 310 the insert nut 308 into the attacks 504 in the wall of the recesses 506 intervene. The insert nuts are in this position. 308 fixed in position and not rotatable. The underside of the support surface 310 the insert nut 308 In this embodiment, it closes flush with the back. 208 of the floor module 106 away.

[0060] Fig. Figure 7 shows a schematic top view of a floor module device 300 according to one exemplary embodiment. This can be based on Fig. 6 described floor module device 300 trade. The compressor 108 is in the middle of the essentially triangular base 406 of the compressor 108 arranged. The three corners of the floor 406 of the compressor 108 The three compressor feet form 302 of the compressor 108 and each take the three round screw heads viewed from above. 306 the screws that go over the bottom 406 shaped compressor feet 302 of the compressor 108 stand out.

[0061] Fig. Figure 8 shows a cross-section of a receiving element 202 comprehensive section of a ground module device 300 according to one exemplary embodiment. This can be based on Fig. 7 described floor module device 300 The diagram shows the compressor foot in its locked position. 302 a compressor 108 on a floor module 106 based on a cross-section through the screw connection 305 with the insert nut 308 The recording element 202 is equipped with a ring-shaped rubber foot 400 enclosed, which in turn enclosed the compressor base 302 of the compressor 108 locked. The rubber foot indicates this. 400 a circumferential groove, from which a through-opening of the compressor base 302 adjacent edge of the compressor base 302 is recorded. The compressor base 302 It is formed from a sheet of metal.

[0062] The recording element 202 In this embodiment, it is located in a depression 402 of the floor module 106 arranged. The receiving element 202is formed by a cylindrical wall section of the floor module 106 formed, which extends from the bottom of the depression 402 towards the compressor side of the floor module 106 extends. The recording element 202 can be seen as a protrusion of the bottom of the depression 402 viewed from the compressor side. The rubber foot 400 lies at the bottom of the depression 402 on. Between a rim of the screw head 306 and the rubber foot 400 A gap is arranged so that slight movement of the compressor base is possible. 302 opposite the floor module 106 This is made possible by a lower end of the screw head facing the threaded section of the screw and lying beneath the rim. 306 is located on one end of the receiving element facing the compressor side. 202 on.

[0063] Out of Fig. 8 shows that the compressor base302 of the compressor according to one embodiment exclusively using the rubber foot 400 as well as the screw 306 and the insert nut on the base module 106 is attached. This approach eliminates the need for additional compressor mounting, such as a mounting tray, spacers, or washers.

[0064] Due to the large diameter of the insert nuts, a tensile and bending load acting on the screw connection is transferred to the area outside the contact surface of the rubber feet. 400 transferred. More installation space is available here, so that in the floor module, which is designed as a plastic part 106 Greater wall thicknesses and pronounced ribbing can be achieved. This is to prevent local stress concentrations caused by any burrs present on the insert nut. 308 or to prevent it through notch effect is in the floor module 106according to one embodiment, around the contact surface 310 A relief notch is provided for the insert nut. The edge of the insert nut 308 The surface is exposed, thus reducing potential stress concentrations.

[0065] A section encompassing such a relief notch 800 of the floor module 106 is in Fig. 9 shown enlarged.

[0066] Fig. Figure 9 shows a schematic representation of a relief notch. 900 a floor module 106 according to one embodiment. For this purpose, the in Fig. 8 marked excerpt 800 Shown enlarged. The reverse side 208 of the floor module 106 features a ring-shaped relief notch 900 to relieve the load on the floor module 106 in the area of ​​the disc-shaped contact surface 310 the insert nut. The relief notch 900In this embodiment, it is a ring-shaped groove adjacent to an outer edge of the recess. 504 for the insert nut 308 realized.

[0067] Fig. Figure 10 shows a flowchart of a method for manufacturing a base module device for a heat pump dryer according to an exemplary embodiment. This could be the base module device described with reference to the preceding figures.

[0068] In one step 1002 A ground module and a compressor are provided. In one step 1004 The compressor is positioned on one compressor side of the base module, with one compressor foot of the compressor being received by a receiving element of the base module. In one step 1006 An insert nut is inserted into the through-opening of the receiving element from one side of the base module. In one step 1008A threaded section of a screw is inserted from the opposite side of the base module into a through-opening of the receiving element. In one step 1010 The screw is tightened with the insert nut to attach the compressor to the base module. The step 1010 can occur after or simultaneously with at least one of the steps 1006 , 1008 be carried out. QUOTES INCLUDED IN THE DESCRIPTION

[0069] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0070] EP 2743394 A1

[0003]

Claims

[1] Floor module ( 106 ) for a heat pump dryer ( 100 ), where the floor module ( 106 ) a compressor intake area ( 200 ) with at least one substantially dome-shaped receiving element ( 202 ) for holding a compressor foot ( 302 ) of a compressor ( 108 ) shows, characterized by that the recording element ( 202 ) a space between a compressor side ( 206 ) of the floor module ( 106 ) and one of the compressor side ( 206 ) opposite back side ( 208 ) of the floor module ( 106 ) extending passage opening ( 204 ) which is designed to form a threaded section ( 307 ) a screw ( 305 ) and a threaded section ( 309 ) an insert nut ( 308 to record. [2] Floor module ( 106 ) according to claim 1, characterized by that on the back ( 208 ) of the floor module (106 ) a recess ( 504 ) is arranged, which is shaped to form a disc-shaped support surface ( 310 ) the insert nut ( 308 to record. [3] Floor module ( 106 ) according to claim 2, characterized by that a wall of the recess ( 504 ) at least one stop ( 506 ) for a fixing element ( 412 ) the insert nut ( 308 ) exhibits. [4] Floor module ( 106 ) according to claim 3, characterized by that the attack ( 506 ) is shaped to ensure compatibility with the fixing element ( 412 ) a bayonet fitting for securing the insert nut ( 308 ) on the floor module ( 106 ) to form. [5] Floor module ( 106 ) according to one of the preceding claims, characterized by that the floor module ( 106 ) has a clamping rib designed to secure the insert nut ( 308 ) on the floor module ( 106) to fix. [6] Floor module ( 106 ) according to one of the preceding claims, characterized by that the back ( 208 ) of the floor module ( 106 ) a ring-shaped relief notch ( 900 ) to relieve the load on the floor module ( 106 ) in the area of ​​a disc-shaped support surface ( 310 ) the insert nut ( 308 ) exhibits. [7] Floor module ( 106 ) according to one of the preceding claims, characterized by that the compressor side ( 206 ) a deeper dive ( 402 ) to accommodate three compressor feet ( 302 ) comprehensive soil ( 406 ) of the compressor ( 108 ) has three receiving elements ( 202 ) to hold the three compressor feet ( 302 ) in the area of ​​in-depth study ( 402 are arranged. [8] Floor module ( 106 ) according to one of the preceding claims, characterized by that the floor module ( 300) a plastic injection molded part ( 500 ) is. [9] Ground module device ( 300 ) for a heat pump dryer ( 100 ), with the following characteristics: a floor module ( 106 ) according to one of the preceding claims; a compressor ( 108 ), wherein a compressor foot ( 302 ) of the compressor ( 108 ) from a recording element ( 202 ) of the floor module ( 106 ) is recorded; a screw ( 305 ), wherein a threaded section ( 307 ) the screw ( 305 ) into the passage opening ( 204 ) of the recording element ( 202 ) is introduced; and an insert nut ( 308 ), wherein a threaded section ( 309 ) the insert nut ( 308 ) into the passage opening ( 204 ) of the recording element ( 202 ) is introduced. [10] Heat pump dryers ( 100), with a heat pump and a floor module device ( 106 ) according to claim 9, wherein the compressor ( 108 ) the floor module device ( 300 ) is part of the heat pump. [11] Procedure ( 1000 ) for manufacturing a floor module device ( 300 ) for a heat pump dryer ( 100 ), the procedure comprising the following steps: Provide ( 1002 ) of a floor module ( 106 ) according to one of the preceding claims; Arrange ( 1004 ) of a compressor ( 108 ) on the compressor side ( 206 ) of the floor module ( 106 ), wherein a compressor foot ( 302 ) of the compressor ( 108 ) from the recording element ( 202 ) of the floor module ( 106 ) is recorded; Introduce ( 1006 ) of a threaded section ( 309 ) an insert nut ( 308 ) into the passage opening ( 204 ) of the recording element (202 ); Introduce ( 1008 ) of a threaded section ( 307 ) a screw ( 305 ) into the passage opening ( 204 ) of the recording element ( 202 ); and Screw ( 1010 ) the screw ( 305 ) with the insert nut ( 308 ), to power the compressor ( 108 ) on the floor module ( 106 ) to attach.

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