CN110822710A

CN110822710A - Heat pump and blower for a heat pump

Info

Publication number: CN110822710A
Application number: CN201910748412.6A
Authority: CN
Inventors: F·佩雷拉; N·贝卡; R·利马
Original assignee: Bosch Termotechnologia SA
Current assignee: Bosch Termotechnologia SA
Priority date: 2018-08-14
Filing date: 2019-08-14
Publication date: 2020-02-21
Also published as: EP3611440A1; PT111104A

Abstract

The invention relates to a heat pump (200), in particular an air heat pump, for heating and/or cooling living rooms and/or fluids, in particular drinking water, comprising a blower (100) for conveying an air flow and a heat pump housing (202) in which the blower (100) is or can be arranged. A heat pump (200), in particular an air heat pump, is proposed, wherein the blower (100) comprises a blower housing (102) of box-shaped design, wherein the blower housing (102) has at least one first guide region (106), wherein the first guide region (106) is designed to guide the blower (100) during insertion of the blower (100) into the heat pump housing (202) or removal of the blower from the heat pump housing (202).

Description

Heat pump and blower for a heat pump

Technical Field

The present invention relates to a heat pump and a blower for a heat pump.

Background

Heat pumps for heating and/or cooling of living rooms and/or fluids, in particular drinking water, are known. Such heat pumps typically include a blower for delivering a flow of air. The blower is arranged in the heat pump housing.

Disclosure of Invention

The invention relates to a heat pump, in particular an air heat pump, for heating and/or cooling a living space and/or a fluid, in particular drinking water, comprising a blower for conveying an air flow and a heat pump housing in which the blower is arranged or can be arranged.

The invention relates to a heat pump, in particular an air heat pump, wherein the blower comprises a blower housing of cassette design, wherein the blower housing has at least one first guide region, wherein the first guide region is designed to guide the blower, in particular specifically, when the blower is pushed into the heat pump housing and/or pulled out of the heat pump housing.

A heat pump is understood as a system for heating and/or cooling living rooms and for heating and/or cooling fluids. Living rooms are understood to be rooms for people and/or animals, including all the usual rooms of houses, office buildings, work buildings. Fluid is understood to be fluid used in connection with a living room, including drinking water, heating water, domestic water, air for example of an air conditioner. The heat pump can receive heat from the heat reservoir adjusted to a low temperature and deliver it to the heat reservoir adjusted to a high temperature. In the case of a refrigerant cycle, heat is taken from the heat reservoir adjusted to a low temperature by means of a heat exchanger acting as a refrigerant evaporator, brought to a higher temperature level by means of a compressor, and fed to the heat reservoir adjusted to a higher temperature by means of a heat exchanger acting as a refrigerant condenser. In air heat pumps, in order to heat a living space and/or a fluid, an air flow, for example an outside air flow extracted from the outside environment, is used as a low-temperature-regulated heat reservoir, the heat of which is extracted from the air flow, brought to a higher temperature level by the heat pump and transferred to the living space or the fluid. Instead of or in addition to the external air flow, air flows from other sources, for example exhaust air flows which are conducted out of the living space, can also be used. In air heat pumps, on the other hand, in order to cool the living space and/or the fluid, the living space and/or the fluid is used as a low-temperature-regulated heat reservoir, the heat of which is drawn off from the living space and/or the fluid, brought to a higher temperature level and transferred to the air flow, in particular to the outside air flow. Alternatively, heat brought to a higher temperature level upon cooling may also be supplied for use, for example to heat a further fluid. The air heat exchanger is used for receiving heat from the air flow or for delivering heat to the air flow. Blowers are generally used to transport, i.e., draw and blow, streams of air that convey heat or cold. The blower can be designed, for example, as a radial blower or as an axial blower. In an air heat pump, a blower serves to convey an air flow, in particular an external air flow, past an air heat exchanger, which may be configured as an evaporator and/or as a condenser. The blower includes a blower motor, a blower wheel driven by the blower motor, and a blower housing in which the blower wheel is arranged. The heat pump includes a heat pump housing in which a blower is arranged. In addition, further components of the heat pump, such as an air heat exchanger, can be arranged in the heat pump housing. The blower housing is constructed in a cassette-like manner, whereby the blower is particularly easy to install and easy to repair. Inside the blower, the blower housing fulfills the functions of receiving the blower wheel and guiding the air flow. The blower housing may also receive a blower motor therein. The outer surface of the blower housing, which closes the blower housing with respect to the outside environment, fulfills the function of a cover, which is designed to reliably enclose the interior. By virtue of the cassette design, the blower housing is particularly well suited for being arranged in the heat pump housing in a operationally suitable, in particular fixed, tight and sound-proof manner, by virtue of the clear, essentially cassette geometry. By means of the cassette geometry, the blower housing is easily pushed into the heat pump housing and pulled out of it again without being clamped and locked (Verkanten). Advantageously, all relevant blower components can be arranged in particular in the blower housing, in particular inside the surrounding outer surface of the blower housing. Thus avoiding collision, hanging, clamping and clamping when pushing in and pulling out. The blower can thus be mounted and dismounted particularly well and easily both in production and in the case of maintenance. The blower housing has a guide region. In this context, a guide region is understood to be a device which is designed to guide, in particular to guide, the blower in a defined manner when the blower is pushed into and/or pulled out of the heat pump housing, so that a desired, in particular defined position and orientation of the blower in the heat pump housing along the path of movement of the blower in the heat pump housing, in particular also in the end position (operating position), is ensured and jamming are precluded. Explicit guidance and explicit location relate to the following: the blower can be moved freely along the path of movement, but is not free in other directions, in particular perpendicular to the path of movement, but is bounded, in particular by the guide region. The travel path is the path of the blower in the heat pump housing, beginning with the first introduction of the blower housing into the heat pump housing and ending with an end position, for example an operating position of the blower for operating the heat pump. The guide region can be configured, for example, for guiding the blower housing on a linear movement path, which can be configured at least partially linearly. Alternatively or additionally, the displacement path may also run at least partially along a bending line. The guiding of the blower may comprise receiving and/or holding and/or supporting such that the blower does not deviate from its path of movement. The guide region is particularly continuously formed without hindrance against displacement. The guide region may be formed by two or more guide region regions.

An advantageous embodiment of the heat pump is characterized in that the heat pump housing has at least one second guide region, wherein the second guide region is configured to correspond to the first guide region of the blower housing and guides the blower when the blower is pushed into the heat pump housing and when the blower is pulled out of the heat pump housing. The second guide region of the heat pump housing is in particular designed to be adapted to the first guide region of the blower housing in such a way that the two guide regions are adapted to each other or function in a matched manner. The two guide regions are designed to be geometrically matched to one another. The two guide regions can slide or slide against one another, for example, and guide the blower in a defined position and orientation along a movement path in the heat pump housing without jamming and clamping. The heat pump housing may have, for example, a receiving well which is suitable for guiding, in particular receiving and/or holding and/or guiding, the blower.

An advantageous embodiment of the heat pump is characterized in that the blower housing and/or the heat pump housing have at least one coding region for mechanically coding their relative arrangement. For this purpose, the blower housing and the heat pump housing each have mutually adapted geometric features which allow only one orientation of the blower in the heat pump housing, which is clearly defined by the coding. This ensures that the blower housing can be arranged only in the nominal orientation in the heat pump housing. Erroneous mounting of the blower housing is excluded. The mechanical coding can be realized, for example, by selecting an outer contour, in particular an outer cross section, of the blower housing and a corresponding inner contour, in particular an inner cross section, of the heat pump housing, in particular of the receiving well. Examples are mutually different sizes of the outside of the blower housing and/or cross sections other than simple shapes, such as rectangular or square.

A further advantageous embodiment of the heat pump is characterized in that the first guide region and/or the second guide region are/is configured substantially in the direction of movement of the blower. The direction of movement is the direction of pushing and/or pulling of the blower in the heat pump housing on the path of movement. This ensures that the blower is reliably guided along the entire travel path. The guide region may be formed continuously in one piece. Alternatively, the guide region can be formed by two or more guide region regions which are arranged, for example, in a point-shaped or partially planar manner along the displacement direction and which form overall a support structure for the blower in the heat pump housing.

A further advantageous embodiment of the heat pump is characterized in that the first guide region and/or the second guide region are designed as a surface and/or an edge and/or a rail. The at least one guide surface can be, for example, a guide surface on the underside of the blower, which can be designed in particular as a guide surface, for placing the blower in the heat pump housing. This one guide surface can be complemented by, for example, a second guide surface on the upper side of the blower, which then runs between the upper and lower guide surfaces. The additional guide surfaces can be arranged, for example, on the right and/or left and/or rear side of the blower, which then operates like a drawer in a drawer compartment. The guide region can also be configured, for example, as at least one guide edge along the path of travel, in particular as a 90-degree angle on which two mutually perpendicular faces of the blower housing or of the heat pump housing are supported. The guide edge can be, in particular, an outer edge of a blower housing of cassette design. Alternatively or additionally, the leading edge can be an inner edge of the heat pump housing, in particular of a receiving well formed in the heat pump housing. This one leading edge can be complemented by a second leading edge, in particular a second 90-degree angle, which supports an adjacent or opposite edge of the blower housing or heat pump housing. The further guide edge can be arranged on a further edge of the housing. The guide region can also be configured, for example, as at least one guide rail along the displacement path, in particular as a guide rail having a tongue-and-groove cross section in which, for example, a longitudinal groove in the blower housing can be displaced on a matching longitudinal tongue in the heat pump housing. Alternatively, the guide rail can also have a dovetail groove (Schwalbenschwanz) cross section, with the following advantages: the blower is held and guided reliably in two spatial directions, while the third spatial direction is the direction of movement of the blower. Alternatively or additionally, two or more guide rails may also be present.

A further advantageous embodiment of the heat pump is characterized in that the at least one first guide region and/or the at least one second guide region are configured in a substantially parallel arrangement with respect to one another. Substantially parallel means parallel at most with manufacturing tolerances. The parallelism ensures that the blower can be moved freely along the displacement path without being clamped, since the same gap between the first guide region and the second guide region exists along the entire displacement path. For example, two guide surfaces of the blower housing can be provided, which are parallel to the two guide surfaces of the heat pump housing. In this way, no obstacle is provided in the path in the area of the guide of the movement along the movement path up to the operating position of the blower in the heat pump housing. In the operating position, the blower is suitably positioned for operating the heat pump, in particular with respect to the heat pump housing and/or other heat pump components, such as an air heat exchanger.

A further advantageous embodiment of the heat pump is characterized in that the at least one first guide region and/or the at least one second guide region are configured in a wedge-shaped arrangement, in particular in order to enclose a wedge angle in an angular range between one degree and five degrees. The wedge angle ensures that the blower can first move freely along the displacement path at the beginning of the insertion. However, as the insertion depth in the heat pump housing increases, the gap between the first guide region and the second guide region decreases due to the wedge angle. If the blower housing finally reaches the operating position on its path of travel, it is arranged to be fixed somewhat tightly in the heat pump housing and no longer has play in movement. The wedge angle may be continuously constant along the movement path. Alternatively, the wedge angle may also increase along the displacement path with increasing insertion depth, so that an extensive insertion through the displacement path is easy and the fixing only takes place in the final region, for example a few centimeters of the displacement path in front of the operating position. The two guide regions (guide surfaces, guide edges) of the blower housing, which are arranged in a wedge-shaped manner relative to one another, can be located, for example, in a heat pump housing provided with guide regions arranged parallel to one another. Alternatively, the guide areas of the blower housing can be arranged in parallel and the guide areas of the heat pump housing can be arranged in a wedge shape. In a further embodiment, both the guide region of the blower housing and the guide region of the heat pump housing can be arranged in a wedge-shaped manner. This feature can be shown in the guide rail, for example, in such a way that the guide groove becomes narrower in the longitudinal direction and/or the guide tongue becomes wider in the longitudinal direction, so that a smaller gap exists between the groove and the tongue as the insertion depth of the blower increases, thereby securing the blower in the heat pump housing.

A further advantageous embodiment of the heat pump is characterized in that the heat pump housing has at least one depth stop for the blower, wherein the depth stop is configured to give the blower an operating position in the heat pump housing when the blower is pushed in. A pair of first stop surfaces on the heat pump housing and second stop surfaces on the blower housing can advantageously be used as depth stops. The mutually contacting stop surfaces prevent further movement of the blower in the heat pump housing. Advantageously, the position of the blower at the depth stop corresponds to the operating position of the blower in the heat pump housing.

A further advantageous embodiment of the heat pump is characterized in that the heat pump housing comprises a releasable housing cover, wherein the housing cover is configured for fixing the blower in an operating position in the connected state with the heat pump housing. The housing cover can delimit the path of movement of the blower when the blower is pulled out and/or removed from the heat pump housing in that the housing cover stands in particular vertically in front of the blower arranged in the operating position, in particular closes a receiving well for the blower. The blower can only be pulled and/or removed from the heat pump housing when the housing cover is opened or removed. This ensures that, with the housing cover closed and without the interior of the heat pump housing being visible, the blower is always arranged in the operating position, in particular in connection with the depth stop and/or the guide regions arranged in a wedge-shaped manner with respect to one another.

A further advantageous embodiment of the heat pump is characterized in that the blower housing comprises, in particular is formed substantially of, a foam material. The material can easily be used to produce a blower housing which, in its interior, fulfills the function of receiving a blower wheel and guiding an air flow, optionally also a blower motor, and which, by its outer surface, closes the blower housing against the outside environment, fulfills the function of a hood which is designed to reliably enclose the interior. The cassette-like design of the blower housing can be achieved particularly well with foam material. Examples for suitable foam materials are plastic foams, such as expanded thermoplastics and expanded thermosets, for example expanded polypropylene (EPP), Expanded Polystyrene (EPS), extruded polystyrene (XPS), polyurethane foams (PUR).

A further advantageous embodiment of the heat pump is characterized in that the blower housing comprises a first housing half shell and a second housing half shell, and the first housing half shell and the second housing half shell form a, in particular, spiral-shaped flow channel for the air flow between them. The blower housing can be divided into the two housing halves along the dividing plane, so that the flow duct, the blower wheel and possibly the blower motor arranged inside the blower housing can be easily accessed. The flow channel is configured to enable an air flow to enter the blower housing through the inflow opening, to cause a desired pressure increase under the influence of the blower wheel, and to blow the air flow out through the outflow opening. The housing shell halves can be connected to one another in the dividing plane, so that the flow channel is closed at the periphery. The half-shells can be connected, for example, by means of a wrap of metal or plastic tape or by means of clips. Alternatively, the half shells can be connected by means of a tongue-and-groove connection in the dividing plane.

A further advantageous embodiment of the heat pump is characterized in that a circumferential or flat seal is arranged between the first housing half shell and the second housing half shell. The housing half shells can be connected to one another in the boundary plane and sealed with respect to the environment outside the blower, so that air losses via gaps in the boundary plane are avoided during operation of the blower. The sealing can be achieved by the tongue-and-groove connection itself, for example by a tongue-and-groove connection under pressure and/or snap-in, or by a surface compression in the boundary plane.

A further advantageous embodiment of the heat pump is characterized in that the blower has a connection device for connection on the one hand to the blower housing, in particular to the first housing half-shell, and on the other hand to the blower wheel and/or the blower motor. The joining region of the connecting device is designed as a flat and torsion-resistant connection for connecting to the blower housing, in particular to the first housing half-shell. The connection device serves to support and fix the blower wheel and optionally the blower motor in the blower housing. Despite the small gap size of the rotatable blower wheel in the flow duct relative to the interior of the blower housing, the blower wheel does not touch the housing, whereby the connection is implemented in a torsion-proof manner. This is achieved by the connecting device being in relation to an engagement region of the blower housing which is designed to be in surface connection with the blower housing. The surface-mounted connection is supported on the blower housing, in particular on the inner surface of the blower housing, in particular on the first housing half shell. The tilting moment caused by the operation of the blower wheel or the blower motor can thus be captured by the structure of the blower housing. Since, by means of effective reinforcement of the connecting device, a softer and in particular more acoustically insulating foam can also be used for the blower housing.

A further advantageous embodiment of the heat pump is characterized in that at least one cable duct is provided on the blower housing, in particular on the first housing half shell, wherein the cable duct is designed as a recess arranged in the outer face of the blower housing, in particular of the first housing half shell, wherein the cable duct is designed for receiving electrical and/or signal lines of the blower motor and for connecting to a power supply and/or signal detector is guided on the front side and/or the rear side of the blower housing. The mentioned conductor is reliably guided in the cable channel to the connection point of the conductor. The engagement point can be arranged and configured such that the electrically conductive and/or signal-conducting contact is combined with the movement of pushing the blower into the heat pump housing and is interrupted by pulling it out. By configuring the cable duct as a recess in the blower housing, which recess is accessible in particular from the outside, the function of the outer surface, which is closed off from the outside environment, as a cover, which is configured for reliably enclosing the interior, is reliably ensured. The cassette configuration of the blower housing remains untouched by the cable channel.

A further advantageous embodiment of the heat pump is characterized in that the electrical and/or signal lines of the blower motor which lead to the front side and/or the rear side of the blower housing lead into at least one electrical plug-in connector. The plug-in connector can be designed such that it is electrically and signally connected when it is pushed into the blower and disconnected when it is pulled out. Alternatively, the plug connector can be configured for manual connection and disconnection, for which purpose an arrangement on the front side of the blower is provided. Alternatively, the conductor can be passed into a sliding contact device which is switched on only on the basis of a push-in or switched off on the basis of a pull-out.

A further advantageous embodiment of the heat pump is characterized in that an inlet opening for the air flow into the blower is formed on the blower housing, in particular on the second housing half shell, and in particular an outlet opening for the air flow out of the blower is formed on the boundary plane of the two housing half shells. The inflow opening and/or the outflow opening has a circumferential sealing region protruding in the form of a lip or flange for sealing the blower housing against the inflow and/or outflow connection on the heat pump side. Due to the projection of the sealing region, in the operating position of the blower, the latter is sealed by pressing against a correspondingly configured inlet or outlet connection on the heat pump side in the state of being pushed into the heat pump housing. If the blower is not in the operating position, but in an intermediate state in front of the operating position of the blower, no pressing and sealing takes place.

A blower is proposed, in particular for use in a heat pump according to one of the preceding embodiments, which blower is characterized by a blower housing of cassette construction, which blower housing has at least one guide region, in particular for guiding the blower when it is pushed into and/or pulled out of the housing of the heat pump. Such a blower has the advantage of being particularly easy to install and easy to repair. Such a blower can easily be pushed into and pulled out of a receiving well of a machine or frame. This can be carried out in particular without tools, since due to the outer contour of the blower housing, the fixing of the blower in the receiving well and the sealing with respect to adjacent machine parts are only produced by the insertion.

Drawings

Embodiments of the present invention are shown in seven figures. The figures show:

figure 1 is a heat pump having a blower housing of cassette configuration,

figure 2 heat pump with the blower in two positions when pushed into the heat pump housing,

figure 3 has two views of a heat pump with a receiving well for a blower,

figure 4 shows a heat pump closed with a housing cover,

figure 5 shows a blower housing of a cassette-like construction with a first housing half-shell and a second housing half-shell,

figure 6 is an exploded view of the blower and,

FIG. 7 is a blower housing of a cassette configuration with two cable channels and electrical plug connectors.

Detailed Description

Fig. 1 shows a heat pump 200 for heating and/or cooling a living space and/or a fluid, having a blower 100 for conveying an air flow and a heat pump housing 202 in which the blower 100 is or can be arranged. The heat pump housing 202 is designed to receive the blower 100 in its interior, for which purpose a receiving well 204 is provided in the heat pump housing 202. In fig. 1, blower 100 is shown in a position spatially outside heat pump housing 202 or outside receiving well 204 before initially introducing blower 100 into heat pump housing 202. The blower 100 includes a blower housing 102 of a cassette configuration. Due to the cassette design, the blower housing 102 can be easily pushed into and pulled out of the heat pump housing 202 in a clear, essentially cassette geometry without being clamped and jammed. In particular, all relevant blower components can be arranged in the blower housing 102 in an advantageous manner. Thus avoiding collision, hanging, clamping and clamping when pushing in and pulling out. The mounting and dismounting of the blower 100 in the case of production and maintenance can thus be carried out particularly well and easily. The blower housing 102 has six first guide areas 106. These first guide areas 106 are designed as guide edges 108 (one of which is hidden) on the four edges of the fan 100 and as guide surfaces 109 (one of which is hidden) on both sides of the fan 100. The illustrated leading edge 108 is formed by three leading

partial regions

110, 111, 112. The first guide region 106 is designed to guide the blower 100 in the direction of movement (see large arrow) when pushing the blower 100 into the heat pump housing 202 and/or when pulling it out of the heat pump housing 202 in such a way that it is received and/or held and/or deflected and/or supported in the heat pump housing 202 along its path of movement, in particular also in the end position (operating position). The first guide region 106 is arranged on mutually opposite sections of the blower housing 102, whereby the blower 100 is guided in a defined manner, which is evident in the following manner: the blower 100 can be moved freely along its path of movement, but is not free in other directions, in particular perpendicular to the direction of movement, but is bounded, in particular by the first guide region 106. The heat pump housing 202 or the receiving well 204 has a second guide region 206 corresponding to the first guide region 106, which is configured to guide the blower 100 when the blower 100 is pushed into the heat pump housing 202 and pulled out of the heat pump housing 202. The illustrated guide edge 108 of the blower housing 102, which forms the first guide region 106, is formed by three

guide sub-regions

110, 111, 112, which are all seated in a corresponding guide edge 208 of the heat pump housing 202. The second guide regions 206 are arranged on mutually opposite sections of the heat pump housing 202, as a result of which the blower 100 is guided in a defined manner. The guidance of the blower housing 102 in the heat pump housing 202, in particular in the receiving well 204, also prevents vibrations and/or vibrations of the blower 100, for example, during operation of the rotary blower motor 114 and the rotary blower wheel 116. The first guide region 106 and the second guide region 206 are configured substantially parallel to one another. By means of the parallelism, it is ensured that the blower 100 can be moved freely along the displacement path without being clamped, since the same gap between the first guide region 106 and the second guide region 206 exists along the entire displacement path. Alternatively, the first guide regions 106 and/or the second guide regions 206 may be configured in a wedge-shaped arrangement relative to one another, so that the gap between the first and second guide regions 106, 206 becomes smaller as the insertion depth increases, and the blower 100 is finally arranged in the end position to be fixed slightly flush in the heat pump housing 202 or the receiving well 204. The blower housing 102 has a first coding region 118 for mechanically coding the relative arrangement of the blower housing with respect to the heat pump housing 202 or the receiving well 204. The first coding region 118 is formed by a widening of the blower housing cross section relative to adjacent regions of the blower housing 102. The heat pump housing 202 or the receiving well 204 has a second coding region 218 (see fig. 3) corresponding to the first coding region 118. In the case of a mutual fit, the first coding region 118 and the second coding region 218 result in that the blower housing 102 can be arranged in the heat pump housing 202 only in the nominal orientation.

Fig. 2 shows the heat pump 200 in two views when the blower 100 is pushed into the heat pump housing 202 or the receiving well 204. Fig. 2a (left half) shows the blower 100 pushed half into position in the heat pump housing 202 or the receiving well 204 (middle position). Fig. 2b (right half) shows the blower 100 in a position completely pushed into the heat pump housing 202 or the receiving well 204 or in an end position or operating position. A depth stop, not shown, delimits the path of movement of the blower 100 in the interior of the heat pump housing 202 or the receiving well 204 and, when pushed in, stops the blower 100 in the end position defined in this way. In this way, the blower 100 assumes an operating position in which the blower 100 is provided with a heat pump-side air connection and possibly an electrical or signal connection in a suitable arrangement for operation. Fig. 2a also shows an inflow opening 120 for the inflow of air into the blower 100 and an outflow opening 122 for the outflow of air from the blower 100, which are configured on the blower housing 102. The inflow opening 120 and the outflow opening 122 each have a circumferential, lip-shaped or flange-shaped protruding sealing region 124 for sealing the blower housing 102 with respect to an inflow connection (not shown) and/or an outflow connection (not shown) on the heat pump side. The sealing region 124 is sealed by pressing in the operating position of the blower 100 in the state of being pushed into the heat pump housing 202. In a position spatially in front of the operating position, the sealing region 124 is placed freely and without compression and without sealing. Also shown in fig. 2 are an intake cross section 220 for the air flow into the heat pump housing 202 and an exhaust cross section 222 for the air flow exhaust. The air flow enters the heat pump housing through the inlet cross section 220, flows through the air heat exchanger 224, flows into the blower 100 through the inflow connection and the inflow opening 120, is accelerated in the blower 100, flows out of the blower 100 through the outflow opening 122 and leaves the heat pump housing through the outlet cross section 222.

Fig. 3 shows the receiving well 204 in two views twisted with respect to one another in the heat pump housing 202 for the blower 100. Six second guide areas 206 can be seen in particular in the receiving well 204. These second guide areas 206 are formed as guide edges 208 on the four edges of the receiving well 204 and as guide surfaces 209 on both sides of the receiving well 204. The second guide region 206 of the receiving well 204 is designed to interact with the first guide region 106 of the blower 100 and, when pushed into the heat pump housing 202 and/or when pulled out of the heat pump housing 202, to guide the blower 100 in such a way that it is received and/or held and/or deflected and/or supported in the heat pump housing 202 or the receiving well 204 along its path of movement, in particular also in the end position (operating position). The second guide region 206 is arranged on mutually opposite sections of the receiving well 204, whereby the blower 100 is guided in a defined manner, which is evident in the following manner: the blower 100 can be moved freely along its path of movement, but is not free, but rather constrained, in other directions, in particular perpendicular to the direction of movement, in particular determined by the first and second guide regions 106, 206. Also seen is the air heat exchanger 224 of the heat pump 200; the blower 100 draws an air flow through the air heat exchanger 224 and through the inflow opening 120 of the blower 100 and blows the air flow out again through the outflow opening 122.

Fig. 4 shows the heat pump housing 202 closed with a housing cover 226. Furthermore, the housing cover 226 also serves to fix the blower 100 in its operating position on the path of movement in the heat pump housing 202.

Fig. 5 shows a blower housing 102 of a cassette configuration. The blower housing 102 includes a first housing half shell 126 and a second housing half shell 128. Here, the first housing half shell 126 and the second housing half shell 128 are shown separately from one another. Advantageously, the blower housing 102, in particular the housing half-

shells

126, 128, are formed from a foam material or from a foamed plastic. The foam material or the foamed plastic has the following advantages: vibrations, in particular tactilely perceptible vibrations and/or acoustically audible vibrations, caused by the operation of the heat pump 200, in particular of the blower 100, are effectively absorbed. This also enables the blower housing 102 to be produced cost-effectively with a high number of parts. The two housing half-

shells

126, 128 form a spiral-shaped flow channel 130 for the air flow between the inflow opening 120 for the air to flow into the blower 100 and the outflow opening 122 for the air to flow out of the blower 100 in the second housing half-shell 128, wherein the outflow opening 122 is formed in the dividing plane between the two housing half-

shells

126, 128. A lip-or flange-shaped protruding sealing region 124, which surrounds the inflow opening 120 and the outflow opening 122, can also be seen for sealing the blower housing 102 with respect to an inflow connection (not shown) and/or an outflow connection (not shown) on the heat pump side. The two

housing half shells

126, 128 receive the blower wheel 116 and the blower motor 114 therebetween. The impeller 116 and the blower motor 114 are connected to the first housing half shell 126. For this purpose, a connecting device 132 is used, which is connected on the one hand to the first blower half shell 126 and on the other hand to the blower wheel 116 and/or the blower motor 114. For operation, the two

housing halves

126, 128 are placed one on top of the other and are connected to one another in a sealing manner, for which purpose a circumferential seal 134 is used, for example a tongue-and-groove seal, in particular a snap-on tongue-and-groove seal. The first coding region 118 of the blower housing 102 can also be seen for mechanically coding the relative arrangement of the blower housing 102 with respect to the heat pump housing 202 or the receiving well 204. The illustrated guide edge 108 of the blower housing 102, which forms the first guide region 106, is formed by three guide

partial regions

110, 111, 112, which are all seated in a corresponding guide edge 208 of the heat pump housing 202. The further guide area 106 is designed as a surface 109 or edge 108. A further guide area 106, not shown, can be formed by a rail, which is arranged along the movement path (parallel to the dividing plane here), for example, on the lower side or on the upper side of the blower housing 102. The guide areas 106 are arranged parallel to each other. Alternatively, a wedge-shaped arrangement of the guide region 106 is possible.

Fig. 6 shows the blower 100 in an exploded view, with the blower housing 102 having the first and second housing half-

shells

126, 128, the impeller 116, the blower motor 114 and the connecting device 132 in a cassette configuration. The connecting device 132 is arranged between the first housing half shell 126 and the structural unit formed by the blower motor 114 and the impeller 116. The connecting device 132 is connected on the one hand to the first housing half shell 126 and on the other hand to the blower wheel 116 and/or the blower motor 114. For the connection to the first housing half-shell 126, the connecting device 132 has a relatively large-area and torsion-resistant engagement region 134, which is arranged in a corresponding engagement region 136 of the first housing half-shell 126. This connection ensures precise and tilt-proof support of the blower wheel 116 and the blower motor 114 in the blower housing 102. Thus, disturbing forces that may be generated, such as at start-up of the blower 100 or based on an imbalance of the impeller 116, do not negatively affect blower operation. This allows for precise placement of the impeller 116 in the blower 100 without the risk of the impeller 116 colliding in the flow passage 130. The use of softer, possibly better damped, blower housing materials is also made possible.

FIG. 7 shows a blower 100 comprising a blower housing 102 of a box-type construction having two cable channels 138 and an electrical plug connector 140. The cable channel 138 is designed as a recess arranged in the outer face of the blower housing 102, in this case the first housing half-shell 126, wherein the cable channel 138 is designed for receiving electrical and/or signal lines of the blower motor 114 and is guided on the front side 142 of the blower housing 102 for connection to a power supply and/or signal detector provided on the heat pump side. Alternatively, the cable channel may also lead onto the rear side 144 of the blower housing 102. The electrical lines and/or signal lines lead to an electrical plug connector on the front side 142 of the blower housing 102, where said electrical plug connector can be connected to or disconnected from a corresponding plug connector of the power supply and/or signal detector on the heat pump side.

Claims

1. Heat pump (200), in particular air heat pump, for heating and/or cooling of a living room and/or a fluid, in particular drinking water, comprising:

a blower (100) for conveying an air flow, and

a heat pump housing (202) in which the blower (100) is or can be arranged,

characterized in that the blower (100) comprises a blower housing (102) of cassette construction,

wherein the blower housing (102) has at least one first guide region (106),

wherein the first guide region (106) is designed to guide the blower (100) when the blower (100) is pushed into the heat pump housing (202) and/or pulled out of the heat pump housing (202).

2. Heat pump (200) according to claim 1, characterized in that the heat pump housing (202) has at least one second guiding region (206),

wherein the second guide region (206) is configured to correspond to the first guide region (106) of the blower housing (102) and to guide the blower (100) when the blower (100) is pushed into the heat pump housing (202) and when the blower is pulled out of the heat pump housing (202).

3. The heat pump (200) according to claim 1 or 2, characterized in that the blower housing (102) and/or the heat pump housing (202) have at least one coding region (118, 218) for mechanically coding their relative arrangement such that the blower housing (102) can be arranged in the heat pump housing (202) only in a nominal orientation.

4. The heat pump (200) according to one of the preceding claims, characterized in that the first guide region (106) and/or the second guide region (206) are configured as a face and/or an edge and/or a rail.

5. The heat pump (200) according to any of the preceding claims, characterized in that the at least one first guiding region (106) and/or the at least one second guiding region (206) are configured in a substantially parallel arrangement with respect to each other.

6. The heat pump (200) according to one of the preceding claims, characterized in that the at least one first guiding region (106) and/or the at least one second guiding region (206) is configured in a wedge-shaped arrangement, in particular in order to enclose a wedge angle in an angular range between one degree and five degrees.

7. The heat pump (200) according to one of the preceding claims, characterized in that the heat pump housing (202) has at least one depth stop for the blower (100), wherein the depth stop is configured to give the blower (100) a defined operating position in the heat pump housing (202) when the blower (100) is pushed in.

8. The heat pump (200) according to any of the preceding claims, characterized in that the heat pump housing (202) comprises a releasable housing cover (226), wherein the housing cover (226) is configured for fixing the blower (100) in an operating position in a state of connection with the heat pump housing (202).

9. The heat pump (200) according to any of the preceding claims, characterized in that the blower housing (102) comprises a foam material, in particular is formed substantially from a foam plastic.

10. The heat pump (200) according to one of the preceding claims, characterized in that the blower housing (102) comprises a first housing half shell (126) and a second housing half shell (128), and the first housing half shell (126) and the second housing half shell (128) form a, in particular, spiral-shaped flow channel (130) for the air flow between them.

11. Heat pump (200) according to one of the preceding claims, characterized in that the blower (100) has a connection device (132) for connection on the one hand with the blower housing (102) and on the other hand with a blower wheel (116) and/or a blower motor (114),

wherein the joining region (134) of the connecting device (132) is designed as a surface-type and torsion-resistant connection for connecting to the blower housing (102).

12. The heat pump (200) according to one of the preceding claims, characterized in that at least one cable channel (138) is provided on the blower housing (102),

wherein the cable channel (138) is configured as a recess arranged in an outer face of the blower housing (102),

wherein the cable channel (138) is designed to receive electrical and/or signal lines of a blower motor (114) and to be guided to a front side (142) and/or a rear side (144) of the blower housing (102) for connection to a power supply and/or a signal detector.

13. The heat pump (200) according to claim 12, characterized in that the electrical and/or signal lines of the blower motor (114) which lead to the front side (142) and/or the rear side (144) of the blower housing (102) lead into at least one electrical plug connector (140).

14. The heat pump (200) according to one of the preceding claims, characterized in that an inflow opening (120) for an air flow into the blower (100) and an outflow opening (122) for the air flow out of the blower (100) are formed on the blower housing (102),

wherein the inflow opening (120) and/or the outflow opening (122) has a circumferential, lip-shaped or flange-shaped protruding sealing region (124) for sealing the blower housing (102) with respect to a heat pump-side inflow and/or outflow connection,

wherein the sealing region (124) is sealed by pressing in the operating position of the blower (100) in a state of being pushed into the heat pump housing (202).

15. Blower (100), in particular for use in a heat pump (200) according to one of the preceding claims, characterized in that a blower housing (102) of cassette construction is provided, which has at least one guide region (106).