EP4686895A1 - Method for assembling a heat pump device - Google Patents

Method for assembling a heat pump device

Info

Publication number
EP4686895A1
EP4686895A1 EP24192559.3A EP24192559A EP4686895A1 EP 4686895 A1 EP4686895 A1 EP 4686895A1 EP 24192559 A EP24192559 A EP 24192559A EP 4686895 A1 EP4686895 A1 EP 4686895A1
Authority
EP
European Patent Office
Prior art keywords
heat pump
pump component
component
heat
components
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24192559.3A
Other languages
German (de)
French (fr)
Inventor
Florian ANTOINE
Damien Kieffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BDR Thermea Group BV
Original Assignee
BDR Thermea Group BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BDR Thermea Group BV filed Critical BDR Thermea Group BV
Priority to EP24192559.3A priority Critical patent/EP4686895A1/en
Priority to PCT/EP2025/070694 priority patent/WO2026027279A1/en
Publication of EP4686895A1 publication Critical patent/EP4686895A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F24H4/04—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 

Definitions

  • the invention relates to a method for assembling a heat pump device. Additionally, the invention relates to heating appliances comprising the assembled heat pump device.
  • Heating appliances having a heat pump device and a water tank are known from the prior art.
  • the water tank comprises two main elements, namely a tank and a thermal insulation.
  • the thermal insulation is usually achieved by one of two means, namely the installation of parts around the tank or the injection of insulating foam into an outer casing of the water tank. Insulating foam injection is achieved by injecting chemical components that react together via a chemical reaction.
  • the heat pump device is arranged on the water tank and/or is used for heating the water located in the water tank.
  • the heated water can be used for domestic and/or sanitary purposes.
  • Such heating appliances can differ from each other in their power output. To achieve different power outputs, it is necessary to use different heat pump components. This results in that a heating appliance manufacturer has to provide a plurality of heat pump components. During assembling of the heating appliance, the assembler has to select the correct heat pump components to achieve the heating appliance with the required target power output. In practice, the assembler sometimes selects heat pump components that do not match with each other resulting in a non-working heating appliance or in a heating appliance with a wrong power output. Said mistakes cannot be repaired or can only be repaired under high burden after the heating appliance is assembled. A further disadvantage is that heating appliances with a predetermined number of different target power outputs can be provided. Said target power outputs are predetermined by the manufacturer of the heating appliance. However, the predetermined target power outputs sometimes do not correspond to the power output needed for an application.
  • Such heating appliances can differ from each other depending on the energy source to be used.. To obtain the appropriate product for the type of source used, it is necessary to use different heat pump components. This results in that a heating appliance manufacturer has to provide a plurality of heat pump components. During assembling of the heating appliance, the assembler has to select the correct heat pump components to achieve the heating appliance with the elements that enable the right energy source to be used. In practice, the assembler sometimes selects heat pump components that do not match with each other resulting in a non-working heating appliance or in a heating appliance with a wrong power output. Said mistakes cannot be repaired or can only be repaired under high burden after the heating appliance is assembled.
  • the energy sources identified include air from the ambient installation environment, air from a connection with an air duct, in particular to or from outside, air from a connection with the ventilation system of the installation site or water from a water circuit, in particular a water circuit in a close loop for heating the installation site.
  • the energy sources may also differ depending on the type of air duct used. In particular, depending on the geometry, height and diameter of the air duct used in the installation site, modifications must be made to the choice of heat pump components to optimise its operation and make it suitable for the air duct.
  • the object of the invention is to provide a method for assembling a heat pump device by means of which the risk of a wrong assembling is reduced and by means of which heating appliances with a plurality of target power outputs and/or energy source can be provided.
  • the object is solved by a method for assembling a heat pump device, the method comprising
  • the method has the advantage that the risk of wrongly assembled heating appliances is reduced. This is possible as each second heat pump component of the second group of heat pump components is assigned to one first heat pump component of the first group of heat pump components. Thus, after selecting the first heat pump component only the correct second heat pump can be selected. Thus, it is not possible anymore that heat pump components that do not match are assembled.
  • the heat pump device can comprise several first heat pump components and several second heat pump components.
  • a further advantage of the invention is that heating appliances having a high number of different target power outputs and/or energy source can be provided. Specifically, different water tank volumes and/or heating capacities imply that different heat pump components are used to achieve the required target power output.
  • a "target power output” is the power output that the heating appliance shall achieve during operation. This is possible due to the modular construction of the heat pump device in which the heat pump components are selected so that that required power output can be provided.
  • the heat pump device can be an air-source heat pump or a water source heat pump or a ground source heat pump. It is possible to use the same base element in the air source heat pump device, water source heat pump device and in the ground source heat pump device. This reduces the manufacturing costs as the same tools can be used for manufacturing some parts, in particular the base element, of the heat pump device.
  • Ambient air-source heat pump devices use ambient air as an energy source. Ambient air entering and leaving the heat pump device is drawn in and returned to the volume of air available at the installation site. The place of installation is an unheated, frost-free room such as a utility room in a building (e.g., a cellar, garage, attic, etc.). In said case the heat pump device can comprise a cheap low power axial fan.
  • Ducted air-source heat pump device use outside air as an energy source, i.e., air that is drawn in and/or discharged from and/or to the outside.
  • This type of heat pump devices offers greater flexibility in installation modes and allows the user to choose a configuration that provides for comfort throughout the year. For example, it is possible to choose to discharge the air from the heat pump device to the outside when the outside temperature is below the comfort temperature of the room. Alternatively, one can choose to recirculate the air from the heat pump device at the installation site when this provides comfort.
  • This type of heat pump device may be susceptible to significant pressure drops due to lengths, bends, and height differences in the ducts. In said case the fan of the heat pump device depends on pressure drop of the sucked air within the heat pump device.
  • Extracted air-source heat pump devices use air extracted from a ventilation network of the installation building as an energy source.
  • This air has a relatively constant and high temperature and humidity, as it comes from living areas of a dwelling. In general, this air may be particularly humid and can contain significant levels of dust or other debris, because it may come from damp rooms, such as bathrooms or kitchens.
  • Heat pump devices using this type of air must be able to operate with a relatively low air flow rate (that of the building's ventilation system).
  • the ventilation network comprises a fan
  • the heat pump device might not comprise a fan or comprises a low power fan.
  • These are generally low-power systems, since the available heat is easily accessible thanks to the temperature and humidity of the air. What's more, these systems generally need to be particularly quiet, as they are positioned close to living areas. It is therefore preferable to choose components with low noise levels and generally low power ratings, in particular the compressor and/or fan.
  • a ground source heat pump and/or a water source heat pump the fan and air heat exchanger are exchanged by a pump and a liquid heat exchanger, which can be a plate heat exchanger or a coil heat exchanger for example.
  • the ground source heat pump and/or a water source heat pump can comprise a fan for safety purposes, in order to evacuate gas in case of leakage of refrigerant.
  • the ground source heat pump and/or a water source heat pump can comprise a flammable refrigerant, in particular propane.
  • the ground source heat pump and/or a water source heat pump needs a hydraulic inlet and outlet from the installation site to the heat exchanger, whereas the air source heat pump comprises an air inlet and outlet, which can be provided in a lid discussed below.
  • the modular construction of the heat pump device enables that heat pump components of different suppliers can be used. This is not possible in the known heat pump devices as heat pump components from different suppliers have different geometry. Thus, in the known solutions the manufacturer of the heating appliance is limited to the use of the heat pump component of the same supplier during the lifetime of the heating appliance. The invention enables due to the modular construction that the manufacturer of the heating appliance is not dependent from only one heat pump component supplier.
  • heat pump device that it is not only possible to use heat pump components of different suppliers but in addition to configure the heat pump components such that assembly mistakes can be prevented.
  • assembly mistakes can be prevented by configuring first heat pump components and second heat pump components such that only heat pump components can be connected to each other that are assigned to each other.
  • the assigning of heat pump components can be ensured by e.g. shaping heat pump components so that it is not possible to connect heat pump components that are not assigned to each other.
  • Another advantage of the invention is the ability to switch from an old generation heat pump component to a new heat pump component during the lifetime of the model or product range of the heating appliance, which can be several years.
  • the reasons for exchange of the heat pump component can be the appearance of a new technology, the selection of a new supplier due to cost reasons and/or solving of quality issues by exchanging the heat pump component.
  • a further advantage of the invention is the ability to modify the heat pump device on the installation site. If a heat pump component is not working anymore and/or needs maintenance, the respective heat pump component can be exchanged. Thus, it is not necessary anymore to exchange the complete heating appliance. For example, it is easy to replace a component and other modules associated with it with a different but compatible component (e.g. from a different supplier, a new generation or one that has been improved to address a performance or quality issue).
  • connection between the first heat pump component and the second heat pump component can be a mechanically connection.
  • the connection can be a form-fit and/or friction fit connection.
  • the connection can be done by using connection means like screws, clips, etc..
  • the connection can be fixed or releasable. If the connection is releasable, it is possible to exchange the first heat pump component and/or the second heat pump component by new heat pump component.
  • a plurality of heat pump components of a group means that the respective group has two or more of said heat pump components.
  • the first group comprises two or more of the first heat pump components and/or the second group comprises two or more of the second heat pump components.
  • Each of the heat pump components can be used in a heat pump device comprising the same base element, which is explained below more in detail.
  • the same base element can be used independent on which of the heat pump component of the respective group is selected. This simplifies the manufacturing as only one base element has to be manufactured, which can be used in a plurality of different heating appliances.
  • “same function” means that each of the heat pump components of the respective group have the same function that is needed in the heat pump device. However, said heat pump components differ from each other in their geometry. The geometry difference is realized by different shapes and/or sizes of the heat pump components of the respective group.
  • the heat pump device can comprise several first heat pump components and/or several second heat pump components.
  • a further first heat pump component from a further first group can be selected, wherein the further first group comprises a plurality of further first heat pump components, which have all the same function and differ from each other in their geometry.
  • the selection of the first heat pump and/or of the further first heat pump component can depend on the target output power that the heat pump device or the heating appliance has to achieve during operation, or its energy source that will be used.
  • the first heat pump component can be a part in which the refrigerant or the source or destination fluid circulates and/or flows.
  • the first heat pump component can be a component by means of which a physical property of the refrigerant or the source or destination fluid can be changed. The physical property can be speed and/or temperature and/or phase.
  • the function of the first heat pump component differs from the function of the further first heat pump component.
  • the fluid can be a gas, in particular air, or a liquid, in particular water.
  • the openings for air flow inlet and outlet can differ in the position, angle or diameter.
  • the second heat pump components have to be configured so that each of the fans can be connected to one second heat pump component.
  • the heat exchanger can differ from each other their dimensions. Dependent on the target power output, the heat exchanger with the right dimension is selected. As the heat exchangers have different dimensions the second heat pump components have to be configures such that each of the heat exchangers can be connected to one second heat pump component.
  • a further second heat pump component can be selected from a further second group, wherein the further second group comprises a plurality of further second heat pump components which have all the same function and differ from each other in their geometry.
  • the function of the second heat pump component differs from the function of the first heat pump component.
  • the function of the second heat pump component can differ from the function of the further second heat pump component.
  • the second heat pump component and the further second heat pump have the same function but are configured as different modules which can be assembled on the heat pump device 1 independent of each other.
  • the further second heat pump can be selected dependent on the selected first heat pump component and/or the selected second heat pump component and/or the selected further first heat pump component.
  • the further second heat pump component can be assigned to one first heat pump component and to one further heat pump component.
  • the selected further second heat pump component can be connected to the selected first heat pump component and/or to the selected second heat pump component and/or the selected further first heat pump component.
  • the selected heat pump components can be mechanically connected to each other.
  • the connection can be done by using connection means like screws, clips, etc..
  • the connection can be fixed or releasable. If the connection is releasable, it is possible to exchange the selected heat pump component by another heat pump component.
  • the first heat pump component and/or the further first heat pump component is selected by means of which said target power output or energy source can be realized. Additionally, the other heat pump components, namely the second heat pump component and the further second heat pump component are selected.
  • the at least one second heat pump component can be selected such that said heat pump component can be connected to the other heat pump components After all heat pump components of the heat pump device are selected the heat pump device is assembled.
  • the heat pump components can be connected to each to other in any order.
  • the selected first heat pump component and/or the second heat pump component can be connected to a base element of the heat pump device.
  • the heat pump components can be mechanically connected to the base element.
  • the connection can be done by using connection means like screws, clips, etc..
  • the heat pump components can be connected to the base element in a fixed or releasable manner.
  • the further first heat component and/or the further second heat component can be connected to the base element.
  • the heat pump components can be directly or indirectly connected to the base element.
  • the base element is a component of the heating appliance that supports the other heat pump components. Said base element is configured that all heat pump components of the respective group or groups discussed above can be arranged on the base element and/or connected to the base element.
  • the base element can be arranged on the water tank of the heating appliance and/or can be arranged above the water tank of the heating appliance. Additionally, the base element can have a planar shape and/or a cup-shape, wherein the heat pump components can be arranged within an inner space of the cup-shape.
  • the first heat pump component can have a connection part that corresponds to a counter-connection part of merely one of the plurality of the second heat pump components.
  • the connection part can be holes in the first heat pump component for receiving one or more connection means, in particular a screw, used to connect the first heat pump component and the second heat pump component to each other.
  • the second heat pump component can also comprise holes as counter connection part for receiving connection means by means of which the first heat pump component and the second heat pump component are connected to each other.
  • the second heat pump component can have a blocking element that blocks the arrangement of the further first heat pump component that is not assigned to the selected first heat pump component and/or the selected second heat pump component on the base element.
  • the blocking element can be a protrusion and/or can be configured such that it prevents that the second heat pump component can be arranged on the base element and/or connected to the first heat pump component and/or the further first heat pump component. This is the case when the second heat pump component shall be connected after the first heat pump component and/or the further heat pump component are arranged on the base element and/or connected to the base element.
  • the blocking element can prevent that the first heat pump component and/or the further heat pump component are arranged on the base element and/or connected to the base element. This is the case, when the second heat pump component having the blocking element is arranged on the base element before the first heat pump component and/or the further first heat pump component.
  • the first heat pump component can be one of the components fan, pump, heat exchanger or compressor.
  • the further first heat pump component can be one of the remaining components. That means, the further first heat pump component is a component of the aforementioned components that does not correspond to the first heat pump component.
  • the first heat pump component and the further heat pump component are selected such that the heating appliance provides a target power output during operation or is adapted to a determined energy source. This can be done by selecting a specific first heat pump component, for example a fan providing a specific air flow, and selecting a specific further first heat pump component, for example a heat exchanger having a predetermined size.
  • the second heat pump component can be an air guide housing for guiding air flow, which is provided by a fan, when the first heat pump component is the fan.
  • the air guide housing in particular an inner space of the air guide housing, has such a shape such that only the fan to which the air guide housing is assigned can be connected and/or arranged. "Assigned" means that the air guide housing cannot receive and/or be connected to any other fan than the fan to which the air guide housing is assigned to.
  • the second heat pump component can be a fan support plate that is used to support the fan.
  • the fan support plate has holes that are located and/or sized such that the fan support plate can only be connected to the assigned fan.
  • the heat pump device can comprise the air guide housing as further second heat pump component.
  • the support plate has such a geometry that the support plate can only be connected to the air guide housing that is assigned to the fan.
  • the air guide housing can also have such a geometry that it can receive the fan to which the air guide housing is assigned to.
  • the second heat pump component can be the air guide housing for guiding the air flow provided by a fan when the first heat pump component is a heat exchanger.
  • the heat pump device can comprise the further second heat pump component, which can be a holding element for holding the heat exchanger when the first heat pump component is a heat exchanger. Said holding element can be directly connected to the base element and/or is assigned to the heat exchanger.
  • the second heat pump component and the further second heat pump component can be arranged on opposite sides of the heat exchanger.
  • the second heat pump component can comprise a blocking element.
  • Said blocking element can prevent that a further first heat pump component, in particular a compressor, that is not assigned to the selected first heat pump component is connected to the selected first heat pump component and/or the selected second heat pump component.
  • the blocking element prevents that the compressor that is not assigned to the first heat pump component is arranged on the base element and/or connected to the base element.
  • the blocking element can also prevent that the further first heat pump component is arranged in wrong rotational position on the base element.
  • the second heat pump component in particular the air guide housing, can be connected to the fan and to the heat exchanger. In said case the second heat pump component is assigned to the selected fan and to the selected heat exchanger.
  • the first heat pump component can be a compressor and the second heat pump component can be bracket that is connected to the compressor.
  • a bracket with a specific counter connection part in particular a specific counter shape, can be connected to the compressor.
  • Said embodiment can comprise a further first heat pump component, namely a heat exchanger.
  • the bracket is selected such from a plurality of brackets that it can be connected to the selected compressor and to the selected heat exchanger.
  • the first heat pump component is a heat exchanger and the second heat pump component is a closure element for at least partially closing a hole in the base element of the heat pump device.
  • the closure element can comprise a hole for removing condensate water from the base element.
  • the closure element can comprise holes for receiving fluid pipes that are connected to a liquid to refrigerant heat exchanger. The liquid to refrigerant heat exchanger is used when the heat pump device is a ground source heat pump and/or a water source heat pump.
  • a particular advantageous embodiment is a heating appliance having a heat pump device assembled according to an inventive method.
  • the heating appliance comprises a water tank, wherein the heat pump device is connected to the water tank and/or is arranged on the water tank and/or the heat exchanger of the heat pump device is fluidically connected to the water tank.
  • the water tank is insulation by e.g. an insulation foam.
  • the heating appliance can comprise a lid for covering the heat pump device. The lid can be used to cover the heat pump components.
  • a particular advantage of the invention is that a wrong connection of the compressor with air duct housing is made impossible due to the provision of the blocking element.
  • a wrong connection of the fan with air duct housing is made impossible thanks the provision of the fan support plate and the shape of the air duct housing.
  • a wrong connection of the heat exchanger with air duct housing can be prevented is made impossible thanks to the geometry of the holding element that is configured such that only said holding element can be connected to the heat exchanger.
  • a wrong connection of the heat exchanger with compressor can be prevented by means of the bracket.
  • a wrong connection can be understood as the connection of a wrong component or the wrong connection of a component, i.e. due to poor positioning in space or angularly. For example, it may mean ensuring that the compressor or heat exchanger cannot be connected by orienting it in the wrong way, for example at 180° or 120° to the vertical mounting axis. Even if the main means of attachment allow this (e.g. screws), the holding element may include a protrusion which prevents the incorrect positioning of this first component.
  • FIG. 1 A perspective view of a heating appliance 17 according to the invention is shown in figure 1 .
  • the heating appliance 17 comprises a heat pump device 1 and a water tank 24.
  • the water tank 24 comprises a casing 18 and a tank 19, which is arranged inside the casing 18, wherein only a part of the tank 19, in particular a liquid connection to the water tank 19, is shown in fig. 1 .
  • the water tank 24 is insulated by insulation material that is arranged between the tank 19 and the casing 18.
  • the heat pump device 1 comprises a plurality of heat pump components that are explained below more in detail.
  • the heat pump components are all connected to each other so that figure 1 shows the heat pump device 1 in its assembled state.
  • the heat pump device 1 is arranged on the water tank 24, in particular on one end of the container 18.
  • the heat pump device 1 and the casing 18 are arranged such that a length axis of the heat pump device 1 is arranged coaxial to a length axis of the casing 18.
  • FIG 2 shows a perspective view of an upper part of the heating appliance 17 with a lid 4.
  • the lid 4 covers the heat pump components 2 of the heat pump device 1.
  • the heat pump device 1 is an air source heat pump so that the lid 4 comprises two openings 25.
  • One opening 25 is used as an air inlet by means of which air is sucked into the heat pump device 1, in particular by a fan 10 and the other opening 25 is used as an air outlet by means of which the sucked air leaves the heat pump device 1.
  • Figure 3 shows a perspective view of an upper part of the heating appliance 17 comprising several unassembled heat pump components 2, 3 of the heat pump device 1. Specifically, figure 3 shows a first heat pump component 2, which corresponds to a fan 10, and a further first heat pump component 2, which corresponds to a heat exchanger 11.
  • figure 3 shows a second heat pump component 3, which corresponds to a fan support plate 16, a further second heat pump component 3, which corresponds to an air guide housing 9, and another second heat pump component, which corresponds to a holding element 13.
  • the function of the air guide housing 9 is to guide the air flow provided by the fan 10.
  • the air guide housing 9 can also hold the heat exchanger 11.
  • the function of the holding element 13 is to hold the heat exchanger 11.
  • the heat exchanger 11 is arranged between the air guide housing 9 and the holding element 13.
  • the air guide housing 9 and the holding element 13 are arranged opposite to each other regarding the heat exchanger 11. All said heat pump components 2, 3 are connected with the base element 5 and/or are arranged on the base element 5.
  • Figure 4 shows an explosive view of some heat pump components shown figure 3 .
  • figure 4 shows the heat pump components 2, 3 discussed in figure 3 with exception of the heat exchanger 11, which is not shown in figure 4 .
  • the fan 10 and heat exchanger 11 are selected such that a target output power can be achieved by the heating appliance 17 and/or so that the system is compliant with the desired energy source.
  • the fan 10 is selected from a first group of fans, which have the same function but differ in their geometry.
  • the heat exchanger 11 is selected from a first group of heat exchangers, which have the same function but differ in their geometry.
  • the fan 10 and the heat exchanger 11 are assigned to each other in said way that the fan 10 and the heat exchanger 11 are selected such that the heating appliance 17 provides the target output power or allow to be connected with the desired energy source.
  • the fan support plate 16 is selected from a second group, which comprises a plurality of fan support plates 16.
  • the fan support plates 16 of the second group have the same function, namely to support a fan, but differ in their geometry. This geometry difference results in that each of the fan support plate 16 is assigned to one fan 10.
  • the fan support plate 16 is selected which is assigned to the selected fan 10.
  • the fan 10 comprises a connection part 6 in form of holes and the second heat pump component comprises a counter-connection part 7 in form of holes.
  • the holes of the fan 10 and the holes of the fan support plate 16 are arranged and dimensioned such that that the fan 10 and the support plate 16 can be connected to each other.
  • the fan 10 is connected to the fan support plate 16 by means of screws 25 as is evident from figure 4 .
  • the air guide housing 9 is selected from a further second group, which comprises a plurality of air guide housings 9.
  • the air guide housings 9 have the same function, namely to guide the air provided by the fan 10, but differ in their geometry. This geometry difference results in that each of air guide housing 9 is assigned to one fan 10 and one fan support plate 16.
  • the air guide housing 9 is selected from the further second group, which is assigned to the selected fan 10 and/or to the selected fan support plate 16.
  • the selected air guide housing 9 is configured such that it has an inner space 20 that can receive the fan 10 in an assembled state of the heat pump device 1.
  • the inner space 20 is configured such that it can receive the fan 10 to which the air guide housing 9 is assigned.
  • the air guide housing 9 is configured such that it can be connected with the fan support plate 16.
  • the air guide housing 9 also comprises a non-shown connection part in form of holes. Said connection part matches with a further counter-connection part 26 in form of holes of the fan support plate 16. Specifically, the holes of the air guide housing 9 and the further holes of the fan support plate are such located and dimensioned that the air guide housing 9 and the fan support plate 16 can be connected to each other.
  • the fan support plate 16 can be connected to the air guide housing 9 by means of non-shown screws.
  • the fan 10 and the fan support plate 16 are arranged at one end of the air flow channel within the air guide housing 9.
  • the heat exchanger 11 is arranged at the other end of the air flow channel.
  • the selected air guide housing 9 is also configured to receive the heat exchanger 11. That means, the shape and dimensions of the air guide housing 9 are adapted to the shape and dimension of the heat exchanger 11 so that the air guide housing 9 can receive and/or hold the heat exchanger 11. In other words, the air guide housing 9 is selected which is assigned to the selected fan 10 and to the selected heat exchanger 11.
  • the holding element 13 is selected from another second group, which comprises a plurality of holding elements 13.
  • the holding elements 13 have the same function, namely to hold the heat exchanger 11, but differ in their geometry. This geometry difference results in that each of holding elements 13 is assigned to one heat exchanger 11. Thus, only one holding element 13 is adapted to be connected to the heat exchanger 11.
  • FIG 5 shows a perspective view of the heat pump device 1 of the heating appliance 17.
  • the heat pump device 1 comprises several assembled heat pump components 2, 3 and the base element 5.
  • the base element 5 has a cup-shape and the heat pump components 2, 3 are arranged on the base element 5, in particular in an inner space delimited by the cup-shape.
  • the air guide housing 9 has a protrusion 21 at its bottom.
  • the base element 5 has a recess for receiving the protrusion 21. Specifically, the air guide housing 9 is connected to the base element 5 when the protrusion 21 is arranged in the recess 22.
  • Figure 6 shows a top view on the heating appliance 17
  • Figure 7 shows a perspective view on the heating appliance 17 with the assembled heat pump components.
  • a blocking element 8 protrudes from the air guide housing 9.
  • the blocking element 8 is configured such that it prevents the arrangement of another first heat pump component, namely of a compressor 12.
  • the blocking element 8 ensures that only a compressor 12 can be inserted into the cup-shaped base element 5 that is assigned to selected air guide housing 9 and thus to the selected first heat pump component 2, namely the fan 10, and/or to the selected further first heat pump component, namely the heat exchanger 11.
  • This blocking element 8 also ensures that the compressor 12 is correctly angled. If not, it could be fixed at 120° or 240° from the desired position, as it is fixed by 3 screws that are forming an equilateral triangle and does not manage any foolproofing by itself.
  • FIG 8 show the compressor 12 and the heat exchanger 11 of the of the heat pump device 1 and Figure 9 shows the compressor 12 shown in figure 8 with brackets.
  • the compressor 12 is selected from another first group, which comprises a plurality of compressors 12.
  • the compressors 12 have the same function, namely to compress refrigerant, but differ in their geometry and/or power output and/or technology.
  • the selection of the compressor 12 is done dependent on the selection of the fan 10 and/or of the heat exchanger 11. In other words, the compressor 12 is selected such that the target power output of the heating appliance 17 can be achieved or is adapted to the energy source desired.
  • the compressor 12 is connected with brackets 23.
  • the brackets 23 are selected from an additional second group, which comprises a plurality of brackets 23.
  • the brackets 23 have the same function, namely to connect the compressor 12 to the heat exchanger, but differ in their geometry.
  • the geometry structure of the brackets 23, in particular the distance between bracket elements 27 in a direction D ensures that only one bracket 23 can be connected to one heat exchanger 11.
  • the bracket 23 is selected that is assigned to the selected heat exchanger 11.
  • by selecting the correct brackets 23 it is ensured that it is not possible to connect a wrong compressor to a heat exchanger 11.
  • FIG 10 shows a perspective view of a further heating appliance 17.
  • the further heating appliance 17 differs from the heating appliance 17 shown e.g. in figure 1 in the type of heat exchanger 11.
  • the heat exchanger 11 that is used in figure 1 is an air heat exchanger whereas the heat exchanger 11 used in the heating appliance 17 shown in figure 10 is a liquid exchanger 11.
  • Another difference is that the heat pump device 1 shown in figure 10 is a water source heat pump whereas the heat pump device 1 shown in figure 1 is an air source heat pump device. The pump of the water source heat pump is not shown in figure 10 .
  • Figure 11 shows the base element 5 of the further heating appliance 17 as shown in figure 10
  • Figure 12 shows the base element 5 of the heating appliance 17 as shown in figure 1 .
  • Both figures show a closure element 14.
  • the closure element 14 at least partially closes a hole 15 in a side wall 28 of the base element 5.
  • the closure element 14 is used for removing condensed water out of the base element 5.
  • the selected closure element 14 depends on whether the heat pump device 1 is a water source heat pump device or an air source heat pump device and thus from the type of the heat exchanger 11 that is used in the heat pump device 1.
  • the closure element 14 shown in figure 11 is assigned to the liquid heat exchanger 11 and the closure element 14 shown in figure 12 is assigned to the air heat exchanger.
  • the closure element 14 that is assigned to the liquid heat exchanger comprises openings through which two pipes can pass. Said pipes are fluidically connected to the heat exchanger 11. Said pipes are used for transporting the liquid that comprises the energy that shall be transferred in the heat exchanger 11 to the refrigerant. Additionally, the closure element 14 comprises a further pipe by means of which condensed water can flow out the base element 5.
  • the closure element 14 that is assigned to the air heat exchanger shown in figure 12 comprises only the pipe through which the condensed water can flow out the base element 5. Adding said closured element 14 to the embodiment shown in figure 11 results in that that the heat pump devices 1 does not work as the pipes transporting the liquid comprising the energy cannot be connected to the liquid heat exchanger.

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Abstract

The invention relates to a method for assembling a heat pump device (1), the method comprisingselecting a first heat pump component (2) from a first group comprising a plurality of first heat pump components (2), which have all the same function and differ from each other in their geometry,selecting a second heat pump component (3) from a second group comprising a plurality of second heat pump components (3), which have all the same function and differ from each other in their geometry, wherein each of second heat pump components (3) is assigned to one first heat pump component (2) andconnecting the selected first heat pump component (2) with the selected second heat pump component (3) that is assigned to the selected first heat pump component (2).

Description

  • The invention relates to a method for assembling a heat pump device. Additionally, the invention relates to heating appliances comprising the assembled heat pump device.
  • Heating appliances having a heat pump device and a water tank are known from the prior art. The water tank comprises two main elements, namely a tank and a thermal insulation. The thermal insulation is usually achieved by one of two means, namely the installation of parts around the tank or the injection of insulating foam into an outer casing of the water tank. Insulating foam injection is achieved by injecting chemical components that react together via a chemical reaction. In said heating appliances the heat pump device is arranged on the water tank and/or is used for heating the water located in the water tank. The heated water can be used for domestic and/or sanitary purposes.
  • Such heating appliances can differ from each other in their power output. To achieve different power outputs, it is necessary to use different heat pump components. This results in that a heating appliance manufacturer has to provide a plurality of heat pump components. During assembling of the heating appliance, the assembler has to select the correct heat pump components to achieve the heating appliance with the required target power output. In practice, the assembler sometimes selects heat pump components that do not match with each other resulting in a non-working heating appliance or in a heating appliance with a wrong power output. Said mistakes cannot be repaired or can only be repaired under high burden after the heating appliance is assembled. A further disadvantage is that heating appliances with a predetermined number of different target power outputs can be provided. Said target power outputs are predetermined by the manufacturer of the heating appliance. However, the predetermined target power outputs sometimes do not correspond to the power output needed for an application.
  • Such heating appliances can differ from each other depending on the energy source to be used.. To obtain the appropriate product for the type of source used, it is necessary to use different heat pump components. This results in that a heating appliance manufacturer has to provide a plurality of heat pump components. During assembling of the heating appliance, the assembler has to select the correct heat pump components to achieve the heating appliance with the elements that enable the right energy source to be used. In practice, the assembler sometimes selects heat pump components that do not match with each other resulting in a non-working heating appliance or in a heating appliance with a wrong power output. Said mistakes cannot be repaired or can only be repaired under high burden after the heating appliance is assembled. Another disadvantage is that, in the event of incorrect assembly, the product could be installed on the customer's premises but have inadequate performance because the components used would not be optimised for the energy source used. The energy sources identified include air from the ambient installation environment, air from a connection with an air duct, in particular to or from outside, air from a connection with the ventilation system of the installation site or water from a water circuit, in particular a water circuit in a close loop for heating the installation site. The energy sources may also differ depending on the type of air duct used. In particular, depending on the geometry, height and diameter of the air duct used in the installation site, modifications must be made to the choice of heat pump components to optimise its operation and make it suitable for the air duct.
  • Thus, the object of the invention is to provide a method for assembling a heat pump device by means of which the risk of a wrong assembling is reduced and by means of which heating appliances with a plurality of target power outputs and/or energy source can be provided.
  • The object is solved by a method for assembling a heat pump device, the method comprising
    • selecting a first heat pump component from a first group comprising a plurality of first heat pump components, which have all the same function and differ from each other in their geometry,
    • selecting a second heat pump component from a second group comprising a plurality of second heat pump components, which have all the same function and differ from each other in their geometry, wherein each of second heat pump components (3) is assigned to one first heat pump component and
    • connecting the selected first heat pump component with the selected second heat pump component that is assigned to the selected first heat pump component.
  • The method has the advantage that the risk of wrongly assembled heating appliances is reduced. This is possible as each second heat pump component of the second group of heat pump components is assigned to one first heat pump component of the first group of heat pump components. Thus, after selecting the first heat pump component only the correct second heat pump can be selected. Thus, it is not possible anymore that heat pump components that do not match are assembled. As is discussed below more in detail, the heat pump device can comprise several first heat pump components and several second heat pump components.
  • A further advantage of the invention is that heating appliances having a high number of different target power outputs and/or energy source can be provided. Specifically, different water tank volumes and/or heating capacities imply that different heat pump components are used to achieve the required target power output. A "target power output" is the power output that the heating appliance shall achieve during operation. This is possible due to the modular construction of the heat pump device in which the heat pump components are selected so that that required power output can be provided.
  • Additionally, it is possible to use the same base element for different heat pump devices types, also defined based on their energy source, which is explained below more in detail. The heat pump device can be an air-source heat pump or a water source heat pump or a ground source heat pump. It is possible to use the same base element in the air source heat pump device, water source heat pump device and in the ground source heat pump device. This reduces the manufacturing costs as the same tools can be used for manufacturing some parts, in particular the base element, of the heat pump device.
  • Ambient air-source heat pump devices use ambient air as an energy source. Ambient air entering and leaving the heat pump device is drawn in and returned to the volume of air available at the installation site. The place of installation is an unheated, frost-free room such as a utility room in a building (e.g., a cellar, garage, attic, etc.). In said case the heat pump device can comprise a cheap low power axial fan.
  • Ducted air-source heat pump device use outside air as an energy source, i.e., air that is drawn in and/or discharged from and/or to the outside. This type of heat pump devices offers greater flexibility in installation modes and allows the user to choose a configuration that provides for comfort throughout the year. For example, it is possible to choose to discharge the air from the heat pump device to the outside when the outside temperature is below the comfort temperature of the room. Alternatively, one can choose to recirculate the air from the heat pump device at the installation site when this provides comfort. This type of heat pump device may be susceptible to significant pressure drops due to lengths, bends, and height differences in the ducts. In said case the fan of the heat pump device depends on pressure drop of the sucked air within the heat pump device.
  • Extracted air-source heat pump devices use air extracted from a ventilation network of the installation building as an energy source. This air has a relatively constant and high temperature and humidity, as it comes from living areas of a dwelling. In general, this air may be particularly humid and can contain significant levels of dust or other debris, because it may come from damp rooms, such as bathrooms or kitchens. Heat pump devices using this type of air must be able to operate with a relatively low air flow rate (that of the building's ventilation system). If the ventilation network comprises a fan, the heat pump device might not comprise a fan or comprises a low power fan. These are generally low-power systems, since the available heat is easily accessible thanks to the temperature and humidity of the air. What's more, these systems generally need to be particularly quiet, as they are positioned close to living areas. It is therefore preferable to choose components with low noise levels and generally low power ratings, in particular the compressor and/or fan.
  • In a ground source heat pump and/or a water source heat pump the fan and air heat exchanger are exchanged by a pump and a liquid heat exchanger, which can be a plate heat exchanger or a coil heat exchanger for example. Additionally, the ground source heat pump and/or a water source heat pump can comprise a fan for safety purposes, in order to evacuate gas in case of leakage of refrigerant. Likewise to the air source heat pump, the ground source heat pump and/or a water source heat pump can comprise a flammable refrigerant, in particular propane. The ground source heat pump and/or a water source heat pump needs a hydraulic inlet and outlet from the installation site to the heat exchanger, whereas the air source heat pump comprises an air inlet and outlet, which can be provided in a lid discussed below.
  • The modular construction of the heat pump device enables that heat pump components of different suppliers can be used. This is not possible in the known heat pump devices as heat pump components from different suppliers have different geometry. Thus, in the known solutions the manufacturer of the heating appliance is limited to the use of the heat pump component of the same supplier during the lifetime of the heating appliance. The invention enables due to the modular construction that the manufacturer of the heating appliance is not dependent from only one heat pump component supplier.
  • It was realized that due to the modular construction of the heat pump device that it is not only possible to use heat pump components of different suppliers but in addition to configure the heat pump components such that assembly mistakes can be prevented. As discussed above the assembly mistakes can be prevented by configuring first heat pump components and second heat pump components such that only heat pump components can be connected to each other that are assigned to each other. The assigning of heat pump components can be ensured by e.g. shaping heat pump components so that it is not possible to connect heat pump components that are not assigned to each other.
  • Another advantage of the invention is the ability to switch from an old generation heat pump component to a new heat pump component during the lifetime of the model or product range of the heating appliance, which can be several years. Thus, it is possible to update the heat pump device with low investment and with incremental evolution. The reasons for exchange of the heat pump component can be the appearance of a new technology, the selection of a new supplier due to cost reasons and/or solving of quality issues by exchanging the heat pump component.
  • A further advantage of the invention is the ability to modify the heat pump device on the installation site. If a heat pump component is not working anymore and/or needs maintenance, the respective heat pump component can be exchanged. Thus, it is not necessary anymore to exchange the complete heating appliance. For example, it is easy to replace a component and other modules associated with it with a different but compatible component (e.g. from a different supplier, a new generation or one that has been improved to address a performance or quality issue).
  • The connection between the first heat pump component and the second heat pump component can be a mechanically connection. Specifically, the connection can be a form-fit and/or friction fit connection. The connection can be done by using connection means like screws, clips, etc.. The connection can be fixed or releasable. If the connection is releasable, it is possible to exchange the first heat pump component and/or the second heat pump component by new heat pump component.
  • A plurality of heat pump components of a group means that the respective group has two or more of said heat pump components. Thus, the first group comprises two or more of the first heat pump components and/or the second group comprises two or more of the second heat pump components. Each of the heat pump components can be used in a heat pump device comprising the same base element, which is explained below more in detail. In other words, the same base element can be used independent on which of the heat pump component of the respective group is selected. This simplifies the manufacturing as only one base element has to be manufactured, which can be used in a plurality of different heating appliances.
  • In the invention "same function" means that each of the heat pump components of the respective group have the same function that is needed in the heat pump device. However, said heat pump components differ from each other in their geometry. The geometry difference is realized by different shapes and/or sizes of the heat pump components of the respective group.
  • The heat pump device can comprise several first heat pump components and/or several second heat pump components.
  • According to an embodiment in addition to the selected first heat pump component, a further first heat pump component from a further first group can be selected, wherein the further first group comprises a plurality of further first heat pump components, which have all the same function and differ from each other in their geometry. The selection of the first heat pump and/or of the further first heat pump component can depend on the target output power that the heat pump device or the heating appliance has to achieve during operation, or its energy source that will be used.
  • For example, in an air source heat pump device it is necessary to select a fan and an air heat exchanger to ensure that the heat pump device can provide a target power output. Likewise, in a ground source heat pump and/or a water source heat pump it is necessary to select a pump and water heat exchanger to ensure that the heat pump devices can provide a target power output. The first heat pump component can be a part in which the refrigerant or the source or destination fluid circulates and/or flows. Specifically, the first heat pump component can be a component by means of which a physical property of the refrigerant or the source or destination fluid can be changed. The physical property can be speed and/or temperature and/or phase. The function of the first heat pump component differs from the function of the further first heat pump component. The fluid can be a gas, in particular air, or a liquid, in particular water.
  • Depending the fan, the openings for air flow inlet and outlet can differ in the position, angle or diameter. Thus, the second heat pump components have to be configured so that each of the fans can be connected to one second heat pump component. The heat exchanger can differ from each other their dimensions. Dependent on the target power output, the heat exchanger with the right dimension is selected. As the heat exchangers have different dimensions the second heat pump components have to be configures such that each of the heat exchangers can be connected to one second heat pump component.
  • In addition to the selected second heat pump component, a further second heat pump component can be selected from a further second group, wherein the further second group comprises a plurality of further second heat pump components which have all the same function and differ from each other in their geometry. The function of the second heat pump component differs from the function of the first heat pump component. Additionally, the function of the second heat pump component can differ from the function of the further second heat pump component. However, it is possible that the second heat pump component and the further second heat pump have the same function but are configured as different modules which can be assembled on the heat pump device 1 independent of each other.
  • The further second heat pump can be selected dependent on the selected first heat pump component and/or the selected second heat pump component and/or the selected further first heat pump component. Specifically, the further second heat pump component can be assigned to one first heat pump component and to one further heat pump component. Thus, it can be easily ensured that after selecting at least one heat pump component, e.g. the first heat pump component it is predefined which other heat pump components, in particular which second heat pump component, can be selected.
  • The selected further second heat pump component can be connected to the selected first heat pump component and/or to the selected second heat pump component and/or the selected further first heat pump component. The selected heat pump components can be mechanically connected to each other. The connection can be done by using connection means like screws, clips, etc.. The connection can be fixed or releasable. If the connection is releasable, it is possible to exchange the selected heat pump component by another heat pump component.
  • For assembling the heat pump device, it is necessary to define the target power output that the heating appliance has to provide during operation. Then the first heat pump component and/or the further first heat pump component is selected by means of which said target power output or energy source can be realized. Additionally, the other heat pump components, namely the second heat pump component and the further second heat pump component are selected.
  • The at least one second heat pump component can be selected such that said heat pump component can be connected to the other heat pump components After all heat pump components of the heat pump device are selected the heat pump device is assembled. The heat pump components can be connected to each to other in any order.
  • The selected first heat pump component and/or the second heat pump component can be connected to a base element of the heat pump device. Specifically, the heat pump components can be mechanically connected to the base element. The connection can be done by using connection means like screws, clips, etc.. Additionally, the heat pump components can be connected to the base element in a fixed or releasable manner. Likewise, the further first heat component and/or the further second heat component can be connected to the base element. The heat pump components can be directly or indirectly connected to the base element.
  • The base element is a component of the heating appliance that supports the other heat pump components. Said base element is configured that all heat pump components of the respective group or groups discussed above can be arranged on the base element and/or connected to the base element. The base element can be arranged on the water tank of the heating appliance and/or can be arranged above the water tank of the heating appliance. Additionally, the base element can have a planar shape and/or a cup-shape, wherein the heat pump components can be arranged within an inner space of the cup-shape.
  • According to an embodiment the first heat pump component can have a connection part that corresponds to a counter-connection part of merely one of the plurality of the second heat pump components. The connection part can be holes in the first heat pump component for receiving one or more connection means, in particular a screw, used to connect the first heat pump component and the second heat pump component to each other. In that case the second heat pump component can also comprise holes as counter connection part for receiving connection means by means of which the first heat pump component and the second heat pump component are connected to each other.
  • The second heat pump component can have a blocking element that blocks the arrangement of the further first heat pump component that is not assigned to the selected first heat pump component and/or the selected second heat pump component on the base element. The blocking element can be a protrusion and/or can be configured such that it prevents that the second heat pump component can be arranged on the base element and/or connected to the first heat pump component and/or the further first heat pump component. This is the case when the second heat pump component shall be connected after the first heat pump component and/or the further heat pump component are arranged on the base element and/or connected to the base element. Alternatively, the blocking element can prevent that the first heat pump component and/or the further heat pump component are arranged on the base element and/or connected to the base element. This is the case, when the second heat pump component having the blocking element is arranged on the base element before the first heat pump component and/or the further first heat pump component.
  • According to an embodiment the first heat pump component can be one of the components fan, pump, heat exchanger or compressor. The further first heat pump component can be one of the remaining components. That means, the further first heat pump component is a component of the aforementioned components that does not correspond to the first heat pump component. As is discussed above, the first heat pump component and the further heat pump component are selected such that the heating appliance provides a target power output during operation or is adapted to a determined energy source. This can be done by selecting a specific first heat pump component, for example a fan providing a specific air flow, and selecting a specific further first heat pump component, for example a heat exchanger having a predetermined size.
  • According to an embodiment the second heat pump component can be an air guide housing for guiding air flow, which is provided by a fan, when the first heat pump component is the fan. In this embodiment the air guide housing, in particular an inner space of the air guide housing, has such a shape such that only the fan to which the air guide housing is assigned can be connected and/or arranged. "Assigned" means that the air guide housing cannot receive and/or be connected to any other fan than the fan to which the air guide housing is assigned to.
  • Alternatively, the second heat pump component can be a fan support plate that is used to support the fan. In said embodiment the fan support plate has holes that are located and/or sized such that the fan support plate can only be connected to the assigned fan. Additionally, the heat pump device can comprise the air guide housing as further second heat pump component. The support plate has such a geometry that the support plate can only be connected to the air guide housing that is assigned to the fan. The air guide housing can also have such a geometry that it can receive the fan to which the air guide housing is assigned to.
  • According to an embodiment the second heat pump component can be the air guide housing for guiding the air flow provided by a fan when the first heat pump component is a heat exchanger. In addition, the heat pump device can comprise the further second heat pump component, which can be a holding element for holding the heat exchanger when the first heat pump component is a heat exchanger. Said holding element can be directly connected to the base element and/or is assigned to the heat exchanger. The second heat pump component and the further second heat pump component can be arranged on opposite sides of the heat exchanger.
  • As mentioned above the second heat pump component can comprise a blocking element. Said blocking element can prevent that a further first heat pump component, in particular a compressor, that is not assigned to the selected first heat pump component is connected to the selected first heat pump component and/or the selected second heat pump component. In other words, the blocking element prevents that the compressor that is not assigned to the first heat pump component is arranged on the base element and/or connected to the base element. The blocking element can also prevent that the further first heat pump component is arranged in wrong rotational position on the base element. The second heat pump component, in particular the air guide housing, can be connected to the fan and to the heat exchanger. In said case the second heat pump component is assigned to the selected fan and to the selected heat exchanger.
  • According to an embodiment the first heat pump component can be a compressor and the second heat pump component can be bracket that is connected to the compressor. Specifically, only a bracket with a specific counter connection part, in particular a specific counter shape, can be connected to the compressor. Said embodiment can comprise a further first heat pump component, namely a heat exchanger. The bracket is selected such from a plurality of brackets that it can be connected to the selected compressor and to the selected heat exchanger.
  • According to an embodiment the first heat pump component is a heat exchanger and the second heat pump component is a closure element for at least partially closing a hole in the base element of the heat pump device. The closure element can comprise a hole for removing condensate water from the base element. Additionally, the closure element can comprise holes for receiving fluid pipes that are connected to a liquid to refrigerant heat exchanger. The liquid to refrigerant heat exchanger is used when the heat pump device is a ground source heat pump and/or a water source heat pump.
  • A particular advantageous embodiment is a heating appliance having a heat pump device assembled according to an inventive method. The heating appliance comprises a water tank, wherein the heat pump device is connected to the water tank and/or is arranged on the water tank and/or the heat exchanger of the heat pump device is fluidically connected to the water tank.
  • The water tank is insulation by e.g. an insulation foam. Additionally, the heating appliance can comprise a lid for covering the heat pump device. The lid can be used to cover the heat pump components.
  • A particular advantage of the invention is that a wrong connection of the compressor with air duct housing is made impossible due to the provision of the blocking element. A wrong connection of the fan with air duct housing is made impossible thanks the provision of the fan support plate and the shape of the air duct housing. Additionally, a wrong connection of the heat exchanger with air duct housing can be prevented is made impossible thanks to the geometry of the holding element that is configured such that only said holding element can be connected to the heat exchanger. A wrong connection of the heat exchanger with compressor can be prevented by means of the bracket.
  • A wrong connection can be understood as the connection of a wrong component or the wrong connection of a component, i.e. due to poor positioning in space or angularly. For example, it may mean ensuring that the compressor or heat exchanger cannot be connected by orienting it in the wrong way, for example at 180° or 120° to the vertical mounting axis. Even if the main means of attachment allow this (e.g. screws), the holding element may include a protrusion which prevents the incorrect positioning of this first component.
  • In the figures, the subject-matter of the invention is schematically shown, wherein identical or similarly acting elements are usually provided with the same reference signs.
    • Figure 1
    shows a perspective view of the heating appliance without a lid.
    Figure 2
    shows a perspective view of an upper part of the heating appliance with a lid.
    Figure 3
    shows a perspective view of the upper part of the heating appliance comprising several unassembled heat pump components.
    Figure 4
    shows an explosive view of some heat pump components shown figure 3.
    Figure 5
    shows a perspective view of a heat pump device of the heating appliance.
    Figure 6
    a top view on the heating appliance.
    Figure 7
    a perspective view on a part of the heating appliance with the assembled heat pump components.
    Figure 8
    a compressor and heat exchanger of the heat pump device.
    Figure 9
    the compressor with brackets of the heat pump device.
    Figure 10
    a perspective view of a further heating appliance.
    Figure 11
    the base element of the further heating appliance as shown in figure 10.
    Figure 12
    the base element of the heating appliance as shown in figure 1.
  • A perspective view of a heating appliance 17 according to the invention is shown in figure 1. The heating appliance 17 comprises a heat pump device 1 and a water tank 24. The water tank 24 comprises a casing 18 and a tank 19, which is arranged inside the casing 18, wherein only a part of the tank 19, in particular a liquid connection to the water tank 19, is shown in fig. 1. The water tank 24 is insulated by insulation material that is arranged between the tank 19 and the casing 18.
  • The heat pump device 1 comprises a plurality of heat pump components that are explained below more in detail. The heat pump components are all connected to each other so that figure 1 shows the heat pump device 1 in its assembled state. The heat pump device 1 is arranged on the water tank 24, in particular on one end of the container 18. The heat pump device 1 and the casing 18 are arranged such that a length axis of the heat pump device 1 is arranged coaxial to a length axis of the casing 18.
  • Figure 2 shows a perspective view of an upper part of the heating appliance 17 with a lid 4. The lid 4 covers the heat pump components 2 of the heat pump device 1. The heat pump device 1 is an air source heat pump so that the lid 4 comprises two openings 25. One opening 25 is used as an air inlet by means of which air is sucked into the heat pump device 1, in particular by a fan 10 and the other opening 25 is used as an air outlet by means of which the sucked air leaves the heat pump device 1.
  • Figure 3 shows a perspective view of an upper part of the heating appliance 17 comprising several unassembled heat pump components 2, 3 of the heat pump device 1. Specifically, figure 3 shows a first heat pump component 2, which corresponds to a fan 10, and a further first heat pump component 2, which corresponds to a heat exchanger 11.
  • Additionally, figure 3 shows a second heat pump component 3, which corresponds to a fan support plate 16, a further second heat pump component 3, which corresponds to an air guide housing 9, and another second heat pump component, which corresponds to a holding element 13. The function of the air guide housing 9 is to guide the air flow provided by the fan 10. In addition, the air guide housing 9 can also hold the heat exchanger 11. The function of the holding element 13 is to hold the heat exchanger 11. In an air flow path, the heat exchanger 11 is arranged between the air guide housing 9 and the holding element 13. The air guide housing 9 and the holding element 13 are arranged opposite to each other regarding the heat exchanger 11. All said heat pump components 2, 3 are connected with the base element 5 and/or are arranged on the base element 5.
  • Figure 4 shows an explosive view of some heat pump components shown figure 3. In particular, figure 4 shows the heat pump components 2, 3 discussed in figure 3 with exception of the heat exchanger 11, which is not shown in figure 4. The fan 10 and heat exchanger 11 are selected such that a target output power can be achieved by the heating appliance 17 and/or so that the system is compliant with the desired energy source. The fan 10 is selected from a first group of fans, which have the same function but differ in their geometry. Likewise, the heat exchanger 11 is selected from a first group of heat exchangers, which have the same function but differ in their geometry. The fan 10 and the heat exchanger 11 are assigned to each other in said way that the fan 10 and the heat exchanger 11 are selected such that the heating appliance 17 provides the target output power or allow to be connected with the desired energy source.
  • The fan support plate 16 is selected from a second group, which comprises a plurality of fan support plates 16. The fan support plates 16 of the second group have the same function, namely to support a fan, but differ in their geometry. This geometry difference results in that each of the fan support plate 16 is assigned to one fan 10. Thus, the fan support plate 16 is selected which is assigned to the selected fan 10. With "assigned" it is meant that the fan support plate 16 and the fan 10 have such a geometry that they can be connected to each other. The fan 10 comprises a connection part 6 in form of holes and the second heat pump component comprises a counter-connection part 7 in form of holes. The holes of the fan 10 and the holes of the fan support plate 16 are arranged and dimensioned such that that the fan 10 and the support plate 16 can be connected to each other. The fan 10 is connected to the fan support plate 16 by means of screws 25 as is evident from figure 4.
  • The air guide housing 9 is selected from a further second group, which comprises a plurality of air guide housings 9. The air guide housings 9 have the same function, namely to guide the air provided by the fan 10, but differ in their geometry. This geometry difference results in that each of air guide housing 9 is assigned to one fan 10 and one fan support plate 16. Thus, the air guide housing 9 is selected from the further second group, which is assigned to the selected fan 10 and/or to the selected fan support plate 16. The selected air guide housing 9 is configured such that it has an inner space 20 that can receive the fan 10 in an assembled state of the heat pump device 1. The inner space 20 is configured such that it can receive the fan 10 to which the air guide housing 9 is assigned. Additionally, the air guide housing 9 is configured such that it can be connected with the fan support plate 16. The means, the air guide housing 9 also comprises a non-shown connection part in form of holes. Said connection part matches with a further counter-connection part 26 in form of holes of the fan support plate 16. Specifically, the holes of the air guide housing 9 and the further holes of the fan support plate are such located and dimensioned that the air guide housing 9 and the fan support plate 16 can be connected to each other. The fan support plate 16 can be connected to the air guide housing 9 by means of non-shown screws.
  • The fan 10 and the fan support plate 16 are arranged at one end of the air flow channel within the air guide housing 9. The heat exchanger 11 is arranged at the other end of the air flow channel. The selected air guide housing 9 is also configured to receive the heat exchanger 11. That means, the shape and dimensions of the air guide housing 9 are adapted to the shape and dimension of the heat exchanger 11 so that the air guide housing 9 can receive and/or hold the heat exchanger 11. In other words, the air guide housing 9 is selected which is assigned to the selected fan 10 and to the selected heat exchanger 11.
  • The holding element 13 is selected from another second group, which comprises a plurality of holding elements 13. The holding elements 13 have the same function, namely to hold the heat exchanger 11, but differ in their geometry. This geometry difference results in that each of holding elements 13 is assigned to one heat exchanger 11. Thus, only one holding element 13 is adapted to be connected to the heat exchanger 11.
  • Figure 5 shows a perspective view of the heat pump device 1 of the heating appliance 17. The heat pump device 1 comprises several assembled heat pump components 2, 3 and the base element 5. The base element 5 has a cup-shape and the heat pump components 2, 3 are arranged on the base element 5, in particular in an inner space delimited by the cup-shape. The air guide housing 9 has a protrusion 21 at its bottom. The base element 5 has a recess for receiving the protrusion 21. Specifically, the air guide housing 9 is connected to the base element 5 when the protrusion 21 is arranged in the recess 22. Figure 6 shows a top view on the heating appliance 17 and Figure 7 shows a perspective view on the heating appliance 17 with the assembled heat pump components. As is evident from figures 6 and 7 a blocking element 8 protrudes from the air guide housing 9. The blocking element 8 is configured such that it prevents the arrangement of another first heat pump component, namely of a compressor 12. In other words, the blocking element 8 ensures that only a compressor 12 can be inserted into the cup-shaped base element 5 that is assigned to selected air guide housing 9 and thus to the selected first heat pump component 2, namely the fan 10, and/or to the selected further first heat pump component, namely the heat exchanger 11. This blocking element 8 also ensures that the compressor 12 is correctly angled. If not, it could be fixed at 120° or 240° from the desired position, as it is fixed by 3 screws that are forming an equilateral triangle and does not manage any foolproofing by itself.
  • Figure 8 show the compressor 12 and the heat exchanger 11 of the of the heat pump device 1 and Figure 9 shows the compressor 12 shown in figure 8 with brackets. The compressor 12 is selected from another first group, which comprises a plurality of compressors 12. The compressors 12 have the same function, namely to compress refrigerant, but differ in their geometry and/or power output and/or technology. The selection of the compressor 12 is done dependent on the selection of the fan 10 and/or of the heat exchanger 11. In other words, the compressor 12 is selected such that the target power output of the heating appliance 17 can be achieved or is adapted to the energy source desired.
  • The compressor 12 is connected with brackets 23. The brackets 23 are selected from an additional second group, which comprises a plurality of brackets 23. The brackets 23 have the same function, namely to connect the compressor 12 to the heat exchanger, but differ in their geometry. The geometry structure of the brackets 23, in particular the distance between bracket elements 27 in a direction D ensures that only one bracket 23 can be connected to one heat exchanger 11. Thus, the bracket 23 is selected that is assigned to the selected heat exchanger 11. Thus, by selecting the correct brackets 23 it is ensured that it is not possible to connect a wrong compressor to a heat exchanger 11.
  • Figure 10 shows a perspective view of a further heating appliance 17. The further heating appliance 17 differs from the heating appliance 17 shown e.g. in figure 1 in the type of heat exchanger 11. The heat exchanger 11 that is used in figure 1 is an air heat exchanger whereas the heat exchanger 11 used in the heating appliance 17 shown in figure 10 is a liquid exchanger 11. Another difference is that the heat pump device 1 shown in figure 10 is a water source heat pump whereas the heat pump device 1 shown in figure 1 is an air source heat pump device. The pump of the water source heat pump is not shown in figure 10.
  • Figure 11 shows the base element 5 of the further heating appliance 17 as shown in figure 10 and Figure 12 shows the base element 5 of the heating appliance 17 as shown in figure 1. Both figures show a closure element 14. The closure element 14 at least partially closes a hole 15 in a side wall 28 of the base element 5. The closure element 14 is used for removing condensed water out of the base element 5.
  • The selected closure element 14 depends on whether the heat pump device 1 is a water source heat pump device or an air source heat pump device and thus from the type of the heat exchanger 11 that is used in the heat pump device 1. The closure element 14 shown in figure 11 is assigned to the liquid heat exchanger 11 and the closure element 14 shown in figure 12 is assigned to the air heat exchanger.
  • The closure element 14 that is assigned to the liquid heat exchanger comprises openings through which two pipes can pass. Said pipes are fluidically connected to the heat exchanger 11. Said pipes are used for transporting the liquid that comprises the energy that shall be transferred in the heat exchanger 11 to the refrigerant. Additionally, the closure element 14 comprises a further pipe by means of which condensed water can flow out the base element 5.
  • The closure element 14 that is assigned to the air heat exchanger shown in figure 12 comprises only the pipe through which the condensed water can flow out the base element 5. Adding said closured element 14 to the embodiment shown in figure 11 results in that that the heat pump devices 1 does not work as the pipes transporting the liquid comprising the energy cannot be connected to the liquid heat exchanger.
    • REFERENCE SIGNS
    • 1
    Heat pump device
    2
    First heat pump component
    3
    Second heat pump component
    4
    Lid
    5
    Base element
    6
    Connection part
    7
    Counter-connection part
    8
    Blocking element
    9
    Air guide housing
    10
    Fan
    11
    Heat exchanger
    12
    Compressor
    13
    Holding element
    14
    Closure element
    15
    Hole
    16
    Fan support plate
    17
    Heating appliance
    18
    Casing
    19
    Tank
    20
    Inner space
    21
    Protrusion
    22
    Recess
    23
    Bracket
    24
    Water tank
    25
    Screw
    26
    Further counter connection part
    27
    Bracket elements
    28
    Side wall

Claims (15)

  1. Method for assembling a heat pump device (1), the method comprising
    selecting a first heat pump component (2) from a first group comprising a plurality of first heat pump components (2), which have all the same function and differ from each other in their geometry,
    selecting a second heat pump component (3) from a second group comprising a plurality of second heat pump components (3), which have all the same function and differ from each other in their geometry, wherein each of second heat pump components (3) is assigned to one first heat pump component (2) and
    connecting the selected first heat pump component (2) with the selected second heat pump component (3) that is assigned to the selected first heat pump component (2).
  2. Method according to claim 1, characterized by
    a. selecting a further first heat pump component from a further first group comprising a plurality of further first heat pump components, which have all the same function and differ from each other in their geometry and/or
    b. selecting a further second heat pump component from a further second group comprising a plurality of further second heat pump components which have all the same function and differ from each other in their geometry, wherein each of second heat pump components (3) is assigned to one first heat pump component (2) and/or to one further first heat pump component and/or to one second heat pump component.
  3. Method according to claim 1 or 2, characterized in that
    a. the selection of the first heat pump component (2) and/or of the further first heat pump component depends on the type of heat source that will be used, in particular among water, exhaust air from ventilation system of the installation site, ambient air of the installation site, ducted air from the outside of the installation site, and/or
    b. the selection of the first heat pump component (2) and/or of the further first heat pump component depends on a target power output of the heat pump device (1).
  4. Method according to claim 2 or 3, characterized in that the further second heat pump (16), which is assigned to the selected first heat pump component (2) and/or to the selected second heat pump component (3) and/or to the selected further first heat pump component (2), is selected from the second further group.
  5. Method according to at least one of the claims 2 to 4, characterized in that the selected further second heat pump component (16) is connected to the selected first heat pump component (2) and/or to the selected second heat pump component (3) and/or the selected further first heat pump component (4).
  6. Method according to at least one of the claims 1 to 5, characterized in that the selected first heat pump component (2) and/or the selected second heat pump component (3) are connected to a base element (5) of the heat pump device (1).
  7. Method according to at least one of the claims 1 to 6, characterized in that the first heat pump component (2) has a connection part (6) that corresponds to a counter-connection part (7) of the second heat pump component (3) that is assigned to the first heat pump component (2)and/or the second heat pump component (3) has a blocking element (8) that blocks the connection of a further first heat pump component that is not assigned to the selected first heat pump component (2) and/or the selected second heat pump component (3).
  8. Method according to at least one of the claims 1 to 5, characterized in that the first heat pump component (2) is one of the components fan (10), hydraulic pump, heat exchanger (11) or compressor (12) and/or the further first heat pump component (4) is one of the remaining components.
  9. Method according to at least one of the claims 1 to 8, characterized in that the second heat pump component (3) is an air guide housing (9) for guiding air flow, which is provided by a fan (10), or a fan support plate (16), when the first heat pump component (2) is the fan (10).
  10. Method according to at least one of the claims 1 to 9, characterized in that the at least one second heat pump component (3) is an air guide housing (9) for guiding the air flow, which is provided by a fan (10), and/or a holding element (13) for holding the heat exchanger (11) when the first heat pump component (2) is a heat exchanger (11).
  11. Method according to at least one of the claims 1 to 10, characterized in that the second heat pump component (3) comprises a blocking element (8) to prevent that a further first heat pump component, in particular a compressor (12), that is not assigned to the selected first heat pump component (2) is connected to the selected first heat pump component (2) and/or the selected second heat pump component (3).
  12. Method according to at least one of the claims 1 to 11, characterized in that the first heat pump component (2) is a compressor (12) and the second heat pump component (3) is a bracket (14) that is connected to the compressor (12).
  13. Method according to at least one of the claims 1 to 12, characterized in that the first heat pump component (2) is a heat exchanger (11) and the second heat pump component (3) is a closure element (14) for at least partially closing a hole (15) in a base element (5) of the heat pump device (1).
  14. Heating appliance (17) having a heat pump device (1) assembled according to at least one of the claims 1 to 13.
  15. Heating appliance (17) according to claim 14, characterized in that the heating appliance (17) comprises a water tank, wherein the heat pump device (1) is connected to the water tank and/or is arranged on the water tank and/or the heat exchanger (11) of the heat pump device (1) is fluidically connected to the water tank.
EP24192559.3A 2024-08-02 2024-08-02 Method for assembling a heat pump device Pending EP4686895A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24192559.3A EP4686895A1 (en) 2024-08-02 2024-08-02 Method for assembling a heat pump device
PCT/EP2025/070694 WO2026027279A1 (en) 2024-08-02 2025-07-18 Method for assembling a heat pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP24192559.3A EP4686895A1 (en) 2024-08-02 2024-08-02 Method for assembling a heat pump device

Publications (1)

Publication Number Publication Date
EP4686895A1 true EP4686895A1 (en) 2026-02-04

Family

ID=92212912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24192559.3A Pending EP4686895A1 (en) 2024-08-02 2024-08-02 Method for assembling a heat pump device

Country Status (2)

Country Link
EP (1) EP4686895A1 (en)
WO (1) WO2026027279A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004101A1 (en) * 2013-07-11 2015-01-15 Tecumseh Europe S.A Thermodynamic machine assembly
DE102019215021A1 (en) * 2019-09-30 2021-04-01 Robert Bosch Gmbh Heater and hydraulic module
CN116123755A (en) * 2023-03-03 2023-05-16 贾卓群 Ground source heat pump set and circulating water system thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004101A1 (en) * 2013-07-11 2015-01-15 Tecumseh Europe S.A Thermodynamic machine assembly
DE102019215021A1 (en) * 2019-09-30 2021-04-01 Robert Bosch Gmbh Heater and hydraulic module
CN116123755A (en) * 2023-03-03 2023-05-16 贾卓群 Ground source heat pump set and circulating water system thereof

Also Published As

Publication number Publication date
WO2026027279A1 (en) 2026-02-05

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