A double-chamber structure of an integrated heating pump for household appliances

Abstract

The present invention discloses a dual-cavity structure of an integrated heating pump for household appliances. The dual-cavity structure includes a heating chamber and a boosting chamber for the integrated heating pump, respectively, which avoids heating and pressurizing in the same pump chamber at the same time, thereby compressing the volume of the boosting chamber to a greater extent and improving the hydraulic efficiency of the integrated heating pump. The dual-cavity structure of an integrated heating pump for household appliances described in the present invention is designed with a dual-cavity structure, a partition and an opening are arranged in the middle of the dual-cavity, and an opening is arranged on the outer surface of one side of the partition to communicate with a water guide groove for the heating chamber, and the opening communicates with the boosting chamber on the other side. A stainless steel heating tube is used as a heating element in the heating chamber, and the heating tube is immersed in the heated liquid to directly heat the liquid, thereby maximizing the heating efficiency. The heating tube has a built-in fuse, which makes it easy to install and safe and reliable. An impeller is used as a centrifugal pressurizing power in the boosting chamber of the integrated heating pump.

Description

Technical Field

[0001] The invention belongs to the field of household appliances, and in particular relates to a double-cavity structure of an integrated heating pump for household appliances. Background Art

[0002] The existing technology is a single pump chamber structure, the main feature of which is an aluminum heater welded to a stainless steel heating plate by brazing. The stainless steel plate serves as a pump cover, and the non-welded surface is in contact with the heated liquid, forming a single pump chamber with the volute. The liquid is pressurized and heated at the same time in the pump chamber. The thermostat and fuse are installed on the heating plate and do not contact the heated liquid. Against this background, a dual-cavity structure for an integrated heating pump for household appliances is also currently a hot topic.

[0003] The heating plate is an aluminum heater that is brazed on a stainless steel plate. A large amount of heat is dissipated from the surface in contact with the air, resulting in heat loss. At the same time, the heater indirectly heats the liquid by heating the brazing layer and the stainless steel plate, resulting in low energy efficiency. In addition, the consistency of aluminum brazing between the aluminum heater and the stainless steel plate is poor. There may be uneven brazing thickness or even partial non-welding, resulting in poor surface temperature consistency of the stainless steel plate, and the heater may even overheat and fail due to poor thermal conductivity. Because the aluminum heater has a low temperature resistance and the heating plate has poor thermal conductivity, the area in contact with the liquid is larger, which makes the entire pump chamber larger and inconvenient to install. At the same time, the impeller accounts for too small a volume in the pump chamber, and the water pressure and flow rate are also correspondingly small. Summary of the invention

[0004] To this end, the present invention provides a dual-cavity structure of an integrated heating pump for household appliances to solve the problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A double-cavity structure of an integrated heating pump for household appliances comprises a double-cavity shell body, a partition opening is arranged on one side outer surface of the double-cavity shell body, a water guide plate for an integrated heating pump is arranged on one side outer surface of the partition opening, a heater is arranged on one side outer surface of the water guide plate for the integrated heating pump, a heating chamber for an integrated heating pump is arranged on one side outer surface of the heater, an integrated heating pump partition is arranged on the lower end outer surface of the heating chamber for the integrated heating pump, an integrated heating pump boosting chamber is arranged on the lower end outer surface of the integrated heating pump partition, and a boosting chamber base is arranged on the lower end outer surface of the boosting chamber for the integrated heating pump, The lower end outer surface of the boost chamber base is provided with an integrated heating pump motor, the lower end outer surface of the integrated heating pump water guide plate is provided with an impeller, the lower end outer surface of the impeller is provided with an integrated heating pump motor shaft and an oil seal, the oil seal is located on one side of the integrated heating pump motor shaft, a fuse is provided on the inner surface of one side of the heater, a water inlet is provided on the outer surface of one side of the impeller, a rubber pad is provided on the inner surface of one side of the double-cavity shell body, a flange is provided on the inner surface of one side of the rubber pad, a water outlet is provided on the outer surface of one side of the boost chamber for the integrated heating pump, and a pressure detection device is provided on one side of the heater.

[0007] Preferably, the water inlet is connected to the heating chamber of the integrated heat pump, the heating chamber of the integrated heat pump is connected to the boost chamber of the integrated heat pump through a partition opening, and the boost chamber of the integrated heat pump is connected to the water outlet.

[0008] Preferably, a fixing hole is provided between the heating cavity of the integrated heat pump and the heater, and the heating cavity of the integrated heat pump is fixedly connected to the heater via the fixing hole, a rubber pad, a flange and screws.

[0009] Preferably, a connecting hole is provided between the pressure detection device and the heating chamber of the integrated heat pump, and the pressure detection device is fixedly connected to the heating chamber of the integrated heat pump through the connecting hole.

[0010] Preferably, the end surface of the water guide plate for the integrated heating pump fits with the main body of the double-cavity shell to form a heating water guide groove, and the lower end surface of the water guide plate for the integrated heating pump fits with the main body of the double-cavity shell to form a pressurized water guide groove.

[0011] Preferably, the gap between the water guide plate and the impeller of the integrated heating pump is controlled to separate the heating chamber of the integrated heating pump from the boosting chamber of the integrated heating pump.

[0012] Preferably, the fuse and the heater are installed by means of a built-in fuse, and the heater is fixedly connected to the heating cavity of the integrated heat pump through a mounting hole.

[0013] The present invention has the following advantages: the dual-cavity structure of an integrated heating pump for household appliances proposed in the technical solution is designed with a dual-cavity structure, which is a heating cavity and a boosting cavity for the integrated heating pump, thereby avoiding the problem of heating and pressurizing in the same pump cavity at the same time, resulting in an excessively large overall volume of the pump cavity. At the same time, the volume of the boosting cavity is compressed, which can improve the hydraulic efficiency of the pump to a greater extent. A stainless steel heating tube is used as a heating element, and the heating tube is immersed in the heated liquid to directly heat the liquid, thereby maximizing the heating efficiency. The heating tube is made of stainless steel, and its temperature resistance is higher than that of an aluminum heater. In this way, the heater can achieve higher power and smaller volume, and is easy to install without brazing. The heater has a built-in fuse, and the pressure detection device inside the heating cavity is preferably a thermistor or a temperature switch. Compared with the prior art, its detection accuracy is higher and more accurate. In order to increase the internal usable volume of household appliances (such as dishwashers, etc.), a smaller-sized motor is used to reduce the space occupied by the water pump assembly inside the household appliance. At the same time, in order to further reduce the energy consumption of household appliances, the present invention immerses the heater in the heated liquid to reduce the energy waste of the heater conducting heat to the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0016] Figure 1 It is a structural schematic diagram of a double-cavity structure of an integrated heating pump for household appliances of the present invention;

[0017] Figure 2 It is a side view of a double-cavity structure of an integrated heating pump for household appliances of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a fuse, a flange and a rubber pad in a double-cavity structure of an integrated heating pump for household appliances of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a water outlet in a double-cavity structure of an integrated heating pump for household appliances of the present invention;

[0020] Figure 5 It is a structural schematic diagram of a water inlet in a double-cavity structure of an integrated heating pump for household appliances of the present invention;

[0021] Figure 6 It is a structural schematic diagram of a side component in a double-cavity structure of an integrated heating pump for household appliances of the present invention.

[0022] In the figure: 1. double-chamber shell body; 2. partition opening; 3. water guide plate for integrated heating pump; 4. heater; 5. heating chamber for integrated heating pump; 6. impeller; 7. partition for integrated heating pump; 8. motor shaft for integrated heating pump; 9. boost chamber for integrated heating pump; 10. oil seal; 11. boost chamber base; 12. motor for integrated heating pump; 13. water outlet; 14. fuse; 15. flange; 16. rubber pad; 17. water inlet; 18. pressure detection device. DETAILED DESCRIPTION

[0023] The technical scheme of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but it will be understood by those skilled in the art that the following described embodiments are part of embodiments of the present invention, rather than all embodiments, and are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to normal conditions or conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1-6 The present invention provides a dual-cavity structure of an integrated heating pump for household appliances, comprising a dual-cavity shell body 1, a partition opening 2 is provided on one side outer surface of the dual-cavity shell body 1, a water guide plate 3 for an integrated heating pump is provided on one side outer surface of the partition opening 2, a heater 4 is provided on one side outer surface of the water guide plate 3 for the integrated heating pump, a heating chamber 5 for the integrated heating pump is provided on one side outer surface of the heater 4, a partition 7 for the integrated heating pump is provided on the lower end outer surface of the heating chamber 5 for the integrated heating pump, a boosting chamber 9 for the integrated heating pump is provided on the lower end outer surface of the partition 7 for the integrated heating pump, a boosting chamber base 11 is provided on the lower end outer surface of the boosting chamber base 11, an integrated heating pump motor 12 is provided on the lower end outer surface of the boosting chamber base 11, an impeller 6 is provided on the lower end outer surface of the water guide plate 3 for the integrated heating pump, and an impeller 6 is provided on the lower end outer surface of the impeller 6. The surface is provided with an integrated heating pump motor shaft 8 and an oil seal 10, and the oil seal 10 is located on one side of the integrated heating pump motor shaft 8. A fuse 14 is provided on the inner surface of one side of the heater 4, and a water inlet 17 is provided on the outer surface of one side of the impeller 6. A rubber pad 16 is provided on the inner surface of one side of the double-cavity shell body 1, and a flange 15 is provided on the inner surface of one side of the rubber pad 16. A water outlet 13 is provided on the outer surface of one side of the booster chamber 9 for the integrated heating pump, and a pressure detection device 18 is provided on the inner surface of one side of the heater 4. When the motor is powered on, the impeller 6 starts to work, and the heated liquid enters the heating chamber 5 for the integrated heating pump from the water inlet 17 and is heated by the heater 4. When the liquid temperature is too high, the heater 4 stops heating, and the heated liquid enters the impeller 6 along the flow channel in the heating chamber 5 for the integrated heating pump, and flows out from the water outlet 13 through the centrifugal action of the impeller 6.

[0027] Furthermore, the water inlet 17 is connected to the heating chamber 5 of the integrated heat pump, the heating chamber 5 of the integrated heat pump is connected to the boost chamber 9 of the integrated heat pump through the partition opening 2, and the boost chamber 9 of the integrated heat pump is connected to the water outlet 13.

[0028] Furthermore, a fixing hole is provided between the heating chamber 5 of the integrated heat pump and the heater 4, and the heating chamber 5 of the integrated heat pump is fixedly connected to the heater 4 through the fixing hole, the rubber pad 16, the flange 15, and screws.

[0029] Furthermore, a connecting hole is provided between the pressure detection device 18 and the heating chamber 5 of the integrated heat pump, and the pressure detection device 18 is fixedly connected to the heating chamber 5 of the integrated heat pump through the connecting hole.

[0030] Furthermore, the upper end surface of the integrated heating pump water guide plate 3 is fitted with the double-cavity shell body 1 to form a heating water guide groove, and the lower end surface of the integrated heating pump water guide plate 3 is fitted with the double-cavity shell body 1 to form a boosting water guide groove.

[0031] Furthermore, the gap between the water guide plate 3 and the impeller 6 of the integrated heating pump is controlled to separate the heating chamber 5 of the integrated heating pump from the boosting chamber 9 of the integrated heating pump.

[0032] Furthermore, the fuse 14 and the heater 4 are installed by means of a built-in fuse, and the heater 4 is fixedly connected to the heating chamber 5 for the integrated heat pump through the installation hole.

[0033] Working principle: When the motor is powered on, the impeller 6 starts to work, and the heated liquid enters the heating chamber 5 for the integrated heating pump from the water inlet 17 and is heated by the heater 4. When the temperature of the liquid is too high, the heater 4 stops heating, and the heated liquid enters the impeller 6 along the flow channel in the heating chamber 5 for the integrated heating pump, and flows out from the water outlet 13 through the centrifugal action of the impeller 6. A double-chamber structure is designed, namely the heating chamber 5 for the integrated heating pump and the boosting chamber, which avoids the problem of excessive overall volume of the pump chamber due to simultaneous heating and pressurization in the same pump chamber, and at the same time compresses the volume of the boosting chamber, which can improve the hydraulic efficiency of the pump to a greater extent. A stainless steel heating tube is used as the heating element, and the heating tube is immersed in the heated The liquid is directly heated in the liquid to maximize the heating efficiency. The heating tube is made of stainless steel, and its temperature resistance is higher than that of the aluminum heater 4. In this way, the heater 4 can achieve higher power and smaller size, and is easy to install without brazing. The heater 4 has a built-in fuse 14, and the pressure detection device 18 inside the heating chamber is preferably a thermistor or a temperature switch. Compared with the prior art, its detection accuracy is higher and more accurate. In order to increase the internal usable volume of household appliances (such as dishwashers, etc.), a smaller size motor is used to reduce the space occupied by the water pump assembly inside the household appliances. At the same time, in order to further reduce the energy consumption of household appliances, the present invention immerses the heater 4 in the heated liquid to reduce the energy waste of the heater 4 conducting heat to the air.

[0034] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

[0035] It should be noted that, in this article, if there are first and second, etc., relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-cavity structure of an integrated heating pump for household appliances, comprising a dual-cavity housing body (1), characterized in that: A partition opening (2) is provided on one side outer surface of the double-chamber shell body (1), a water guide plate (3) for an integrated heating pump is provided on one side outer surface of the partition opening (2), a heater (4) is provided on one side outer surface of the water guide plate (3) for the integrated heating pump, a heating chamber (5) for the integrated heating pump is provided on one side outer surface of the heater (4), a partition (7) for an integrated heating pump is provided on the lower end outer surface of the heating chamber (5) for the integrated heating pump, a booster chamber (9) for the integrated heating pump is provided on the lower end outer surface of the partition (7) for the integrated heating pump, a booster chamber base (11) is provided on the lower end outer surface of the booster chamber base (11), an integrated heating pump motor (12) is provided on the lower end outer surface of the booster chamber base (11), an impeller (6) is provided on the lower end outer surface of the water guide plate (3) for the integrated heating pump, and the impeller (6) The lower end outer surface of the integrated heating pump is provided with a motor shaft (8) and an oil seal (10), the oil seal (10) is located on one side of the integrated heating pump motor shaft (8), the inner surface of one side of the heater (4) is provided with a fuse (14), the outer surface of one side of the impeller (6) is provided with a water inlet (17), the inner surface of one side of the double-chamber housing body (1) is provided with a rubber pad (16), the inner surface of one side of the rubber pad (16) is provided with a flange (15), the outer surface of one side of the integrated heating pump booster chamber (9) is provided with a water outlet (13), the inner surface of one side of the heater (4) is provided with a pressure detection device (18), the water inlet (17) is connected to the heating chamber (5) of the integrated heating pump, the heating chamber (5) of the integrated heating pump is connected to the booster chamber (9) of the integrated heating pump through the partition opening (2), the booster chamber (9) of the integrated heating pump The integrated heating pump water guide plate (3) is connected to the water outlet (13), and the upper end surface of the integrated heating pump water guide plate (3) is fitted with the double-cavity shell body (1) to form a heating water guide groove, and the lower end surface of the integrated heating pump water guide plate (3) is fitted with the double-cavity shell body (1) to form a boosting water guide groove.

2. The dual-chamber structure of the integrated heating pump for household appliances according to claim 1, characterized in that A fixing hole is provided between the heating chamber (5) of the integrated heating pump and the heater (4); the heating chamber (5) of the integrated heating pump is fixedly connected to the heater (4) via the fixing hole, the rubber pad (16), the flange (15) and screws.

3. The dual-chamber structure of the integrated heating pump for household appliances according to claim 1, characterized in that A connecting hole is provided between the pressure detection device (18) and the heating chamber (5) of the integrated heating pump, and the pressure detection device (18) is fixedly connected to the heating chamber (5) of the integrated heating pump via the connecting hole.

4. According to claim 1, a dual-cavity structure of an integrated heat pump for household appliances, characterized in that The integrated heating pump water guide plate (3) and the impeller (6) are controlled by a gap, thereby isolating the heating chamber (5) of the integrated heating pump from the boosting chamber (9) of the integrated heating pump.

5. The dual-cavity structure of the integrated heat pump for household appliances according to claim 1, characterized in that The fuse (14) and the heater (4) are installed by means of a built-in fuse. The heater (4) is fixedly connected to the heating chamber (5) for the integrated heating pump via a mounting hole.

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