Heat pump system

Abstract

The invention relates to a heat pump system 100 comprising a heat pump and a housing, wherein the housing includes a rear wall 240, at least one side wall 210 and a base plate 110, and wherein the heat pump system includes hydraulic connections 120, 220, 320 and electrical connections 130. The rear wall and / or the base plate has a first opening 250 for routing hydraulic lines to the hydraulic connections, and the side wall has a second opening 230 for accessing the electrical connections, wherein the first opening and the second opening are arranged at a first angle to each other.Furthermore, the electrical connections have a connection direction for connecting to electrical cables and a mounting direction, arranged at a second angle to the connection direction, for attaching the electrical cables to the electrical connections. The connection direction points towards the rear wall of the heat pump, and the mounting direction points towards the side wall of the heat pump. The heat pump system allows for easy connection of the heat pump, even when it is installed against a wall.

Description

[0001] The present invention relates to the field of heat pumps and in particular to a heat pump system comprising a heat pump and a housing, wherein the heat pump system further comprises hydraulic connections and electrical connections.

[0002] In DE 10 2021 118 041 A1 a domestic technology device, in particular an integral storage tank, is described which has a housing and a front section, with hydraulic connections on a top side and electrical connections on a front side.

[0003] CN217952773U describes an air-source heat pump unit in which a water module receiving space is provided, in which an electrical equipment box is arranged.

[0004] JP2015161424A refers to a hot water recirculation unit where the arrangement of various components and pipes is optimized to allow maintenance work to be carried out from the front of the housing. Inlet and outlet valves are located in a lower compartment of the housing, while an electrical control box is located in the upper compartment.

[0005] KR20220032749A describes a cold and hot water dispenser with a receiving chamber that includes an electrode connection and protrudes towards the outside of a water tank.

[0006] EP2585769 relates to an electric instantaneous water heater with a housing. In a vertical installation position, the housing has an upper and a lower pair of bores, each of which can be connected to the cold water inlet and the hot water inlet, respectively. An internal piping system is provided for the fluid connection of the cold water inlet positioned in the respective bore to the water inlet and the water outlet to the hot water outlet positioned in the respective bore.

[0007] After installing a heat pump, i.e. a heat pump system, in a place designated for the heat pump, e.g. a mounting base, it is necessary to connect the heat pump to both hydraulic lines and electrical lines designated for the heat pump.

[0008] It is known that hydraulic and electrical connections for attaching the hydraulic and electrical lines to the heat pump are located on the rear of the heat pump or heat pump system. This allows for shorter lengths of hydraulic and electrical lines and makes it easy to conceal the connections within the heat pump. In cases where the hydraulic and electrical connections are located on the rear of the heat pump, an external connection box can be useful to further protect the connections from visibility and weather after they have been attached. Alternatively, the hydraulic and electrical lines can also be routed from the bottom of the heat pump to designated connections.

[0009] In a case where the heat pump is positioned with its back against a wall, such as a house wall, having hydraulic and electrical connections on the back is a disadvantage because access for an installer is severely limited. Even if installation—i.e., connecting the hydraulic and electrical lines—can be carried out during the heat pump's setup, with the lines first connected and then the heat pump placed in its correct position near the wall to provide the installer with more space, subsequent access to the connections, for example, in the event of a fault or leak, remains extremely difficult for the installer.

[0010] One objective of the present invention is to simplify the installation of the heat pump with regard to the hydraulic and electrical connections for heat pumps that are arranged with a back against a wall, and to conceal the hydraulic and electrical lines through the heat pump or the housing of the heat pump system.

[0011] It is therefore desirable to present a solution that simplifies the installation of hydraulic and electrical lines on a heat pump while also meeting other requirements, such as the protection of the connections.

[0012] According to the invention, a heat pump system as defined in claim 1 is proposed according to a first aspect.

[0013] According to a second aspect of the invention, a method is proposed as defined in claim 19, namely a method for assembling a heat pump system with a heat pump and a housing, wherein the housing comprises a rear wall, at least one side wall and a base plate, wherein the heat pump system comprises hydraulic connections and electrical connections, wherein the method comprises the steps of: (i) deciding whether hydraulic lines are routed through a first opening in the rear wall or a first opening in the base plate of the heat pump, (ii) routing the hydraulic lines through the first opening, (iii) connecting the hydraulic lines to the hydraulic connections, (iv) routing electrical lines through the first opening towards the electrical connections, (v) connecting the electrical lines to the electrical connections through a second opening in the side wall of the heat pump.and (vi) routing the electrical wires at least partially from the first opening to the electrical terminals.

[0014] Such an arrangement of the hydraulic and electrical connections in the heat pump allows, on the one hand, the protection or concealment of the hydraulic and electrical lines by the heat pump system or the heat pump housing, and on the other hand, easy installation of the hydraulic and electrical lines on the heat pump regardless of whether the heat pump is positioned with a back panel close to a wall, e.g., a house wall.

[0015] The heat pump is preferably an air / water heat pump, and is preferably designed and suitable for outdoor installation.

[0016] The heat pump housing preferably surrounds the entire heat pump. In a case where the heat pump is cuboid in shape, the housing comprises at least a rear wall, two side walls, a base plate, a front wall, and a cover, the front wall preferably including a discharge grille. The rear wall is the wall of the heat pump opposite the discharge grille. In an advantageous embodiment, the hydraulic connections are arranged in a corner of the heat pump between a rear wall and a side wall. Furthermore, the electrical connections are preferably arranged next to the hydraulic connections on a side wall. In a case where the heat pump is cylindrical in shape, the housing comprises at least one side surface corresponding to a surface of the cylinder describing the heat pump, a base plate, and a cover.The side surface includes a rear wall corresponding to a first sub-area of ​​the side surface, which is preferably arranged opposite a second sub-area of ​​the side surface comprising the discharge grille. In an advantageous embodiment, the hydraulic connections are arranged in a sub-area of ​​the side surface, i.e., the rear wall, with the electrical connections being arranged next to the hydraulic connections on a side wall. "Next to" in both embodiments means that the electrical connections are either arranged directly next to the hydraulic connections or that other parts of the heat pump may be arranged between the electrical connections and the hydraulic connections.

[0017] The hydraulic connections are advantageously designed to provide a water inlet connection for connection to a water inlet and a water return connection for connection to a water return, wherein the water inlet connection and the water return connection are each oriented towards the rear of the heat pump or towards the base plate of the heat pump. Preferably, the water inlet connection and the water return connection are oriented in the same direction, with alternatively one of the water inlet connection and the water return connection being oriented towards the rear of the heat pump and a second of the water inlet connection and the water return connection being oriented towards the base plate of the heat pump. The hydraulic connections correspond in particular to water connections.The hydraulic connections can include any variants known for hydraulic connections, such as screw threads or quick couplings.

[0018] The electrical connections are preferably designed to provide one or more power supply connections for supplying the heat pump with electrical energy and / or one or more control connections for connection to a heat pump control unit. The electrical connections can include any known types of electrical connections, such as screw terminals or clip-on terminals.

[0019] The rear panel and / or base plate of the heat pump housing has a first opening for routing hydraulic lines to the hydraulic connections. Advantageously, the rear panel can include this first opening, or alternatively, it can include a further opening that is different from the first. If the hydraulic lines are routed through a first opening in the base plate, this opening can be closed by a flap. Additionally or alternatively, the base plate can advantageously include this first opening, or alternatively, it can include a further opening that is different from the first. If the hydraulic lines are routed through a first opening in the rear, this opening in the base plate can be closed.Preferably, the base plate has a predetermined breaking point for removing a portion of the base plate. If the hydraulic lines are routed through a first opening in the base plate, the portion of the base plate at the predetermined breaking point is removed. Furthermore, if the hydraulic lines are routed through a first opening in the rear wall, the portion of the base plate is not removed, thus closing the opening in the base plate. The size of the first opening is selected such that at least the hydraulic lines can be routed through it, i.e., they can fit through the first opening. The size of the first opening can be adapted to provide a corresponding additional area for connecting the hydraulic lines to the hydraulic ports.

[0020] According to the invention, the first opening is also provided for laying electrical cables to the electrical connections, wherein a size of the first opening is chosen such that the electrical cables can also be laid through the first opening, i.e., fit spatially through the first opening.

[0021] The side wall of the heat pump casing has a second opening for accessing the electrical connections. This second opening is for mounting, i.e., connecting, the electrical cables to the electrical terminals. The size of this second opening in the side wall is determined by the size of the electrical terminals, for example, by the size of a plate on which the electrical terminals are mounted.

[0022] The first opening and the second opening are arranged at a first angle α to each other, preferably an angle between 10° and 170°, and more preferably between 85° and 95°. In the case of a cuboid-shaped heat pump, the first angle between the first opening and the second opening is preferably 90°, in which case the first opening and the second opening are arranged perpendicular to each other. In the case of a cylindrical heat pump, the first angle is preferably 90° if the first opening is located in the base plate, and preferably between 90° and 180° if the first opening is located in the rear wall.

[0023] The electrical connections have a connection direction and a mounting direction, the connection direction being for connecting to electrical cables and the mounting direction being for mounting the electrical cables to the electrical connections. The connection direction is arranged at a second angle β to the mounting direction, the second angle preferably being 85° to 95°, particularly preferably 90°. The connection direction of the electrical connections points towards the rear wall of the heat pump and the mounting direction of the electrical connections towards the side wall of the heat pump.

[0024] In a preferred embodiment, the heat pump system has an intermediate wall arranged within the heat pump housing. In particular, the intermediate wall is arranged perpendicular to a side wall of the heat pump, preferably in contact with the side wall. The intermediate wall may preferably have openings through which, for example, electrical cables can be routed. A first chamber is defined or delimited by the rear wall of the heat pump housing, the side wall of the heat pump housing, and the intermediate wall, with the hydraulic connections located in this first chamber. A second chamber is defined or delimited by the intermediate wall and the side wall, with the electrical connections located in this second chamber. The intermediate wall is thus arranged between the first chamber and the second chamber. Preferably, the first chamber and the second chamber do not overlap.A partition wall is not necessarily required if the hydraulic and electrical connections are located in a first and second compartment, as described above. This means that an arrangement of a first and second compartment, particularly with the hydraulic connections in the first compartment and the electrical connections in the second, is also possible without a partition wall.

[0025] In a preferred embodiment of the above design, the second opening provides access to both the first and second chambers. Specifically, both the first and second chambers each have openings to a side wall, corresponding to a common opening. The second chamber is then preferably at least partially open to a side wall, i.e., to the second opening of the side wall, of the heat pump housing. This has the advantage that lateral access is possible not only to the electrical connections but also to the hydraulic connections.

[0026] In a further preferred embodiment, the heat pump system includes a guide element configured to at least partially guide electrical cables from the rear wall to the electrical connections. Preferably, the guide element is arranged perpendicular to a side wall and / or parallel to a rear wall of the heat pump. In particular, the guide element is preferably configured to at least partially guide electrical cables from the first compartment to the second compartment. "Guided" in the context of the guide element means that the electrical cables are guided along a predetermined path, and "partially guided" means that the electrical cables are partially guided along a predetermined path. Complete guidance between the rear wall and the electrical connections, or from the first compartment to the second compartment, is not necessary but can be provided.

[0027] The guide element can preferably be arranged in the first room, or alternatively, it can be arranged between the first room and the second room, e.g., as part of the partition wall. Alternatively, the guide element can also be arranged in the second room.

[0028] In a preferred embodiment of the above design, the guide element has an opening, wherein the openings are designed to guide the electrical conductors that are placed through the openings along a predetermined path.

[0029] Advantageously, the openings of the guide element can be at least partially open at an edge of the guide element in the direction of the side wall of the heat pump. In particular, at least some or all of the openings of the guide element can be open at an edge of the guide element in the direction of a side flap (see below) for the side wall of the heat pump. For example, the guide element can be designed as a perforated sheet, in which case an open opening in the direction of the side wall of the heat pump can be created by cutting through the holes of the perforated sheet.

[0030] In another preferred embodiment, the hydraulic connections are arranged entirely within the casing of the heat pump. "Entirely within the casing" means that the hydraulic connections are arranged in a volume defined by an outer surface of the heat pump casing.

[0031] The hydraulic connections are preferably oriented towards the rear wall of the heat pump and / or towards the base plate of the heat pump. If the first opening is provided in the rear wall of the heat pump, the hydraulic connections are preferably oriented towards the rear wall. If the first opening is provided in the base plate of the heat pump, the hydraulic connections are preferably oriented towards the base plate. If the first opening is provided by an opening in the rear wall and another opening in the base plate, part of the hydraulic lines and electrical lines run through the opening in the rear wall of the heat pump, and another part of the hydraulic lines and electrical lines run through the other opening in the base plate of the heat pump; that is, the opening in the rear wall of the heat pump and the other opening in the base plate of the heat pump together constitute the first opening.In this case, some of the hydraulic connections are preferably oriented towards the rear wall and another part of the hydraulic connections are preferably oriented towards the base plate.

[0032] In a further preferred embodiment, the heat pump system has a side flap to cover the second opening. A side flap allows the electrical cables to be connected to the heat pump when the heat pump is installed with its rear side close to a wall or similar structure, without having to remove the entire side panel of the heat pump. Additionally or alternatively, a rear flap and / or a bottom flap can be provided to cover the first opening. Particularly in the case of a rear flap and / or a bottom flap, the rear flap and / or the bottom flap preferably have openings for the hydraulic lines and / or the electrical lines. More preferably, the bottom flap is a part of the base plate that can be broken out of the base plate, like a breakaway panel.

[0033] In a preferred embodiment of the above design, the side flap can be reversibly mounted separately from the side wall. In particular, the side wall and the side flap are designed as two parts, wherein the side flap can be attached to the side wall, for example, by snapping it into place and / or screwing it on.

[0034] Features of advantageous embodiments of the invention are defined in particular in the dependent claims, with further advantageous features, embodiments and configurations also being apparent to the person skilled in the art from the above explanations and the following discussion.

[0035] The present invention will now be further illustrated and explained with reference to exemplary embodiments shown in the figures. Here, Fig. 1 a schematic representation illustrating a first embodiment of the heat pump system according to the invention, Fig. 2 a schematic representation illustrating a second embodiment of the heat pump system according to the invention with a side wall, Fig. 3 a further schematic representation illustrating the second embodiment of the heat pump system with a side wall and a side flap, Fig. 4 a schematic representation illustrating the second embodiment of the heat pump system from a different perspective, Fig. 5 a schematic representation illustrating a further embodiment of the heat pump system with regard to the hydraulic connections, Fig. 6 a schematic representation illustrating a further embodiment of the heat pump system with regard to the hydraulic connections, and Fig.7. A schematic flowchart to illustrate an embodiment of the method according to the invention.

[0036] In the accompanying drawings and the explanations relating to these drawings, corresponding or related elements are marked with corresponding or similar reference symbols, where appropriate, even if they are found in different embodiments.

[0037] Fig. 1 Figure 1 shows a schematic representation illustrating a first embodiment of the heat pump system. The heat pump system 100 shown comprises a heat pump and a housing, wherein in Fig. 1 Only part of the heat pump and part of the casing are visible. In particular, in Fig. 1 A base plate 110 of the housing is shown, along with hydraulic connections 120 and electrical connections 130. The hydraulic connections 120 are located in a rear left corner of the heat pump, while the electrical connections 130 are arranged on a left side of the heat pump next to the hydraulic connections 120. The arrangement of the hydraulic connections 120 and the electrical connections 130 can also be understood as a connection arrangement. The connection arrangement is located directly on the base plate 110. A rear side of the heat pump is shown in Fig. 1 arranged diagonally to the left, one left side of the heat pump faces in Fig. 1 diagonally downwards to the right. A rear panel and a left side panel of the heat pump housing are in Fig. 1 not shown.

[0038] In the present embodiment, the hydraulic connections 120 are oriented towards the base plate 110 of the heat pump. The hydraulic connections 120 are designed to provide a water inlet connection for connection to a water supply and a water return connection for connection to a water return. In the illustrated embodiment, the water inlet connection and the water return connection are oriented towards the base plate 110 of the heat pump. This orientation of the hydraulic connections towards the base plate 110 is achieved in the present embodiment by an angled connection that extends and redirects the hydraulic connections from those oriented towards the rear of the heat pump towards the base plate of the heat pump.

[0039] In the illustrated embodiment, the hydraulic connections 120 are surrounded by an inner wall 141 and an intermediate wall 142, the inner wall 141 and the intermediate wall 142 having openings. Alternatively, an inner wall 141 or an intermediate wall 142 can be designed to be short such that there is an opening between the inner wall 141 and the intermediate wall. The inner wall 141 is arranged parallel to a side wall of the heat pump housing. The intermediate wall 142 is arranged between the hydraulic connections 120 and the electrical connections 130. In particular, the intermediate wall 142 can be designed to hold the hydraulic connections 120. A first space 150 is bounded by at least the rear wall of the heat pump housing, the side wall of the heat pump housing, and the intermediate wall 142, with the hydraulic connections 120 being arranged in the first space 150.Furthermore, a second space is defined by at least the side wall of the heat pump housing and the partition wall 142, with the electrical connections 130 being arranged in the second space 160.

[0040] The electrical connections 130 are configured to provide one or more power supply connections for supplying the heat pump with electrical energy and / or one or more control connections for connection to a control unit of the heat pump. In the illustrated embodiment, the electrical connections 130 are arranged in an inner housing 140, the inner housing 140 being arranged around the electrical connections 130 on four sides.

[0041] The rear panel of the heat pump and / or the base plate 110 of the heat pump has a first opening for routing hydraulic lines to the hydraulic connections 120. In particular, a punched-out plate is provided in the base plate 110, which is preferably not punched out if the rear panel has the first opening for routing hydraulic lines, and preferably punched out if the rear panel does not have the first opening for routing hydraulic lines. In other words, the base plate 110 includes a predetermined breaking point for removing a portion of the base plate 110.

[0042] Furthermore, the side wall of the heat pump housing includes a second opening for accessing the electrical connections 130, i.e., for mounting electrical cables to the electrical connections 130. The first opening and the second opening are arranged at a first angle to each other. In the illustrated embodiment, the first opening and the second opening are arranged perpendicular to each other, i.e., the first angle corresponds to a value of 90°.

[0043] The electrical terminals 130 have a connection direction for connecting to electrical cables, with the connection direction pointing towards the rear wall of the heat pump. Furthermore, the electrical terminals 130 have a mounting direction, arranged at a second angle to the connection direction, for mounting the electrical cables to the electrical terminals 130, with the mounting direction pointing towards the side wall of the heat pump. In the illustrated embodiment, the connection direction of the electrical terminals 130 is arranged perpendicular to the mounting direction, i.e., the second angle corresponds to a value of 90°.

[0044] The second opening in the side wall can extend over the first chamber 150 or over both the first chamber 150 and the second chamber 160; that is, the second opening preferably provides an opening into both the first and second chambers. In particular, a side flap is provided for the second opening, which is located on the side wall of the heat pump and covers the first chamber 150 and / or the second chamber 160 in the direction of the side wall of the heat pump. Additionally or alternatively, a rear flap and / or a bottom flap can also be provided to cover the first opening. The rear flap and / or the bottom flap can have further openings for hydraulic or electrical lines. For example, a rear flap can be U-shaped. Preferably, the side flap and / or the rear flap can be reversibly mounted separately from the side wall or the rear wall, i.e., for example, removed from the side wall or rear wall using tools.detachable from the back panel.

[0045] The heat pump system 100 shown has a guide element 170 configured to guide electrical cables at least partially from the first compartment 150 to the second compartment 160. In particular, the guide element 170 is configured to guide electrical cables from a rear side of the heat pump to the electrical connections 130. In the embodiment shown, the guide element 170 is arranged in the first compartment 150, although alternatively, the guide element 170 can also be arranged, for example, between the first compartment 150 and the second compartment 160. For example, the guide element 170 can be configured as part of the partition wall 142. In the embodiment shown, the guide element 170 is perpendicular to the inner wall 141 in the direction of the side wall of the heat pump. The guide element 170 has openings through which electrical cables from the first compartment 150 to the second compartment 160 can be routed.from a rear side of the heat pump to the electrical connections 130, at least partially. At least some of the openings, in this case all openings, are open to an edge of the guide element 170 in the direction of a side wall of the heat pump; that is, the openings are open to an edge of the guide element 170 when the side wall, in particular a side flap of the side wall, is not mounted, and are closed when the side wall, in particular a side flap of the side wall, is mounted. In particular, the guide element 170 can correspond to a perforated sheet, the perforated sheet then preferably having openings to an edge of the guide element 170 in the direction of the side wall of the heat pump.

[0046] In the illustrated embodiment, the hydraulic connections 120 are arranged completely within the housing of the heat pump, i.e., the hydraulic connections do not protrude from the first space 150 defined by the housing, i.e., the hydraulic connections 120 do not protrude from a volume defined by the housing of the heat pump. In particular, the hydraulic connections are located within a footprint of the housing of the heat pump.

[0047] Fig. 2 shows a schematic representation illustrating a second embodiment of the heat pump system with a side wall. Fig. 2 The heat pump system 100 comprises a side wall 210 and a rear wall 240. The heat pump system 100 further comprises hydraulic connections 220 and electrical connections 130. The hydraulic connections 220 are partially covered by the rear wall 240 and are therefore only partially visible. The electrical connections 130 are visible through an opening corresponding to the second opening 230. The side wall 210 of the heat pump has an opening corresponding to the second opening 230. In the illustrated embodiment, the size of the second opening 230 of the side wall 210 essentially corresponds to a size defined by the electrical connections 130. Alternatively, an opening can also be provided that corresponds to a common opening of the first chamber 150 and the second chamber 160 in the direction of the side wall 210 of the heat pump. That is to say, The size of the second opening 230 is essentially defined by a width of the first space 150 and of the second space 160.The second opening 230 then provides an opening into the first room 150 and an opening into the second room 160, whereby in this case an inner wall (not shown) is at least partially open in the direction of the side wall of the heat pump housing.

[0048] In the illustrated embodiment, the hydraulic connections 120 point towards a rear wall 240 of the heat pump. In particular, the first opening 250 is arranged on the rear wall 240, and a rear flap, which may be shaped, for example, as a "U", can be provided on the rear wall 240 to partially cover the first opening 250.

[0049] Fig. 3 Figure 1 shows another schematic representation to illustrate the second embodiment of the heat pump system. Fig. 3 Hydraulic connections 320 can be seen, which include a T-piece and are therefore aligned both towards the rear wall of the heat pump and towards the base plate of the heat pump.

[0050] Fig. 3 Figure 3 further shows a side flap 310 for covering the second opening 230 towards the side wall of the heat pump. In the illustrated embodiment, the side flap 310 is designed to cover the electrical connections 130 in the second compartment 160. Alternatively, the side flap can also be wider to cover the first compartment 150. In particular, the side flap 310 can be designed to cover a second opening 230, which provides access to both the first compartment 150 and the second compartment 160.

[0051] Fig. 4 This shows a schematic representation illustrating the second embodiment of the heat pump system from a different perspective. This makes it possible to see in Fig. 4 The guide element 170 can be identified. The guide element 170 has openings through which electrical cables are routed. The guide element 170 is at least partially open at one edge towards the side wall 210 of the heat pump, i.e., at least some of the openings of the guide element 170 are open towards the side wall 210 of the heat pump. In Fig. 4 It can be seen that the guide element 170 is closed off by the side wall of the heat pump at the edge of the guide element 170, i.e., that the openings opening towards the side wall 210 of the heat pump are closed by the side wall 210 of the heat pump. In the illustrated embodiment, further guide elements 410 are shown for guiding electrical cables from a rear side of the heat pump to the electrical connections 130.

[0052] Fig. 5 Figure 1 shows a schematic diagram illustrating the second embodiment of the heat pump system with regard to the hydraulic connections. In the illustrated embodiment, the hydraulic connections 220 are oriented only towards one rear side of the heat pump. The other connections shown in Figure 2 are oriented towards the rear of the heat pump. Fig. 5 The features shown essentially correspond to the features from Fig. 4 .

[0053] Fig. 6 Figure 1 shows a schematic representation illustrating a further embodiment of the heat pump system with regard to the hydraulic connections. In the embodiment shown, the hydraulic connections 120 are those shown in Figure 1. Fig. 1 correspond to the direction of a base plate for the heat pump. The further in Fig. 6 The features shown essentially correspond to those in the Fig. 4 and 5 Features shown.

[0054] Fig. 7Figure 700 shows a schematic flowchart illustrating a first embodiment of the method according to the invention. The method is designed for assembling a heat pump system comprising a heat pump and a housing. The housing includes at least one rear wall, at least one side wall, and a base plate, with the heat pump system further comprising hydraulic and electrical connections. In a first step 710 of the method 700, a decision is made as to whether hydraulic lines are to be routed through a first opening in the wall or a first opening in the base plate of the heat pump. If the hydraulic lines are to be routed through a first opening in the base plate of the heat pump, a portion of the base plate, which is connected to the rest of the base plate, for example, by a predetermined breaking point, can be cut out in a subsequent step. In a further step 720, the hydraulic lines are routed through the first opening.In a case where it is decided that the hydraulic lines are to be routed through a first opening in the rear wall, the hydraulic lines are routed through the first opening in the rear wall; in a case where it is decided that the hydraulic lines are to be routed through a first opening in the base plate, the hydraulic lines are routed through the first opening in the base plate. In a subsequent step, the hydraulic lines are connected to the hydraulic connections.

[0055] Before, during, or after steps 710 to 730, the following steps are performed: In step 740, electrical cables are routed through the first opening towards the electrical connections. If it is decided that the hydraulic lines are to be routed through a first opening in the rear panel, the electrical cables are routed through the first opening in the rear panel. If it is decided that the hydraulic lines are to be routed through a first opening in the base plate, the electrical cables are routed through the first opening in the base plate. During or after step 740, the electrical cables are connected to the electrical connections through a second opening on the side panel of the heat pump.During step 740 and / or step 740 or after at least one of steps 740 and 750, the electrical leads are guided at least partially from the first opening to the electrical terminals, preferably by a guide element.

[0056] Even though the figures show various aspects or features of the invention in combination, it is apparent to the person skilled in the art – unless otherwise stated – that the combinations shown and discussed are not the only possible ones. In particular, corresponding units or sets of features from different embodiments can be interchanged.

[0057] The invention relates to a heat pump system comprising a heat pump and a housing, wherein the housing includes a rear wall, at least one side wall, and a base plate, and wherein the heat pump system includes hydraulic connections and electrical connections. The rear wall and / or the base plate has a first opening for routing, i.e., passing through, hydraulic lines to the hydraulic connections, and the side wall has a second opening for accessing the electrical connections, the first opening and the second opening being arranged at a first angle to each other. Furthermore, the electrical connections have a connection direction for connecting to electrical cables and a mounting direction arranged at a second angle to the connection direction for mounting the electrical cables to the electrical connections, the connection direction pointing towards the rear wall of the heat pump and the mounting direction pointing towards the side wall of the heat pump.The heat pump system allows for easy connection of the heat pump, even if the heat pump is located against a wall.

Claims

1. A heat pump system (100) having a heat pump and a housing, wherein the housing comprises a rear wall (240), at least one side wall (210) and a bottom panel (110), the heat pump system (100) comprising hydraulic connectors (120, 220, 320) and electrical connectors (130), wherein the rear wall (240) and / or the bottom panel (110) has a first opening (250) for guiding hydraulic lines through to the hydraulic connectors (120, 220, 320), wherein the side wall (210) has a second opening (230) for accessing the electrical connectors (130), wherein the first opening (250) and the second opening (230) are arranged at a first angle with respect to each other, characterised in that the electrical connectors (130) have a connection direction for connection to electrical lines and a fitting direction, arranged at a second angle with respect to the connection direction, for fitting the electrical lines to the electrical connectors (130), the connection direction pointing in the direction of the rear wall (240) of the heat pump and the fitting direction pointing in the direction of the side wall (210) of the heat pump, and the first opening being provided for laying electrical lines to the electrical connectors.

2. The heat pump system (100) according to claim 1, wherein the first angle and / or the second angle correspond(s) to a value greater than or equal to 85° and less than or equal to 95°, preferably 90°.

3. The heat pump system (100) according to any one of claims 1 and 2, which further has a partition wall (142) within the housing, wherein a first space (150) is delimited at least by the rear wall (240), the side wall (240) and the partition wall (142), wherein a second space (160) is delimited at least by the partition wall (142) and the side wall (240), wherein the hydraulic connectors (120, 220, 320) are arranged in the first space (150) and wherein the electrical connectors (130) are arranged in the second space (160).

4. The heat pump system (100) according to claim 3, wherein the second opening (230) provides an opening into the first space (150) and into the second space (160).

5. The heat pump system (100) according to any one of the preceding claims, wherein the heat pump system (100) has a guide element (170) which is designed to at least partially guide electrical lines from the rear wall (240) to the electrical connectors (130).

6. The heat pump system (100) according to any one of claims 3 and 4, wherein the heat pump system (100) has a guide element (170) which is designed to at least partially guide electrical lines from the first space (150) into the second space (160).

7. The heat pump system (100) according to claim 6, wherein the guide element (170) is arranged in the first space (150).

8. The heat pump system (100) according to claim 6, wherein the guide element (170) is designed as part of the partition wall (142).

9. The heat pump system (100) according to any one of claims 5 to 8, wherein the guide element (170) has openings.

10. The heat pump system (100) according to claim 9, wherein at least some of the openings are open to an edge of the guide element (170) in the direction of the side wall (210) of the heat pump.

11. The heat pump system (100) according to any one of claims 9 and 10, wherein the guide element (170) corresponds to a perforated sheet.

12. The heat pump system (100) according to any one of the preceding claims, wherein the hydraulic connectors (120, 220, 320) are arranged completely within the housing of the heat pump.

13. The heat pump system (100) according to any one of the preceding claims, wherein the hydraulic connectors (120, 220, 320) are oriented in the direction of the rear wall (240) of the heat pump or in the direction of the bottom panel (110) of the heat pump.

14. The heat pump system (100) according to any one of the preceding claims, wherein the bottom panel (110) comprises a predetermined breaking point for separating out a part of the bottom panel (110).

15. The heat pump system (100) according to any one of the preceding claims, wherein the hydraulic connectors (120, 220, 320) are designed to provide a water supply line connector for connection to a water supply line and a water return line connector for connection to a water return line, wherein the water supply line connector and the water return line connector are each oriented in the direction of the rear side of the heat pump or in the direction of the bottom panel (110) of the heat pump.

16. The heat pump system (100) according to any one of the preceding claims, wherein the electrical connectors (130) are designed to provide one or more power supply connectors for supplying the heat pump with electrical energy and / or one or more control connectors for connection to a control unit of the heat pump.

17. The heat pump system (100) according to any one of the preceding claims, which further has a side cover (310) for covering the second opening (230) and / or has a rear cover or bottom cover for covering the first opening (250).

18. The heat pump system (100) according to any one of the preceding claims, which further has a side cover (310) for covering the second opening (230), wherein the side cover (310) can be reversibly fitted separately from the side wall.

19. A method (700) for fitting a heat pump system having a heat pump and a housing, wherein the housing comprises a rear wall, at least one side wall and a bottom panel, wherein the heat pump system comprises hydraulic connectors and electrical connectors, the method having the steps: deciding (710) whether to lay hydraulic lines through a first opening in the rear wall or a first opening in the bottom panel of the heat pump, laying (720) the hydraulic lines through the first opening, connecting (730) the hydraulic lines to the hydraulic connectors, laying (740) electrical lines through the first opening in the direction of the electrical connectors, fitting (750) the electrical lines to the electrical connectors through a second opening on the side wall of the heat pump, and guiding (760) the electrical lines at least partially from the first opening to the electrical connectors.

20. The method according to claim 19, comprising the further step: closing the second opening by means of a side cover.

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