阅读说明：本技术 加热泵及清洁装置 (Heating pump and cleaning device ) 是由 胡小文 胡斯特 戴龙珍 刘日超 谭发刚 王文鹏 于 2019-10-12 设计创作，主要内容包括：本发明适用于流体泵领域,提供了一种加热泵及清洁装置。本发明所提供的加热泵包括：壳体,内部形成依次连通的进液腔、连接腔和出液腔；加热装置,设置在所述进液腔中；叶轮,设置在所述出液腔中；其中,所述叶轮包括入口端和出口端,所述入口端与所述连接腔连通,所述出口端与所述出液腔连通。在本发明中,通过将加热装置和叶轮设置在不同的腔体中,从而减少了加热装置的高温辐射叶轮和泵壳,避免造成叶轮和泵壳过早老化的情况发生,使加热泵使用的可靠性和寿命得到了提升。(The invention is suitable for the field of fluid pumps, and provides a heating pump and a cleaning device. The present invention provides a heat pump comprising: the shell is internally provided with a liquid inlet cavity, a connecting cavity and a liquid outlet cavity which are sequentially communicated; the heating device is arranged in the liquid inlet cavity; the impeller is arranged in the liquid outlet cavity; the impeller comprises an inlet end and an outlet end, the inlet end is communicated with the connecting cavity, and the outlet end is communicated with the liquid outlet cavity. In the invention, the heating device and the impeller are arranged in different cavities, so that the high-temperature radiation of the impeller and the pump shell of the heating device is reduced, the condition that the impeller and the pump shell are aged too early is avoided, and the use reliability and the service life of the heating pump are improved.)

1. A heat pump, comprising:

the shell is internally provided with a liquid inlet cavity, a connecting cavity and a liquid outlet cavity which are sequentially communicated;

the heating device is arranged in the liquid inlet cavity;

the impeller is arranged in the liquid outlet cavity;

the impeller comprises an inlet end and an outlet end, the inlet end is communicated with the connecting cavity, and the outlet end is communicated with the liquid outlet cavity.

2. A heat pump as claimed in claim 1, wherein the axis of the connecting chamber is perpendicular to the axis of the outlet chamber.

3. A heat pump as claimed in claim 1, wherein the axis of the inlet chamber is parallel to the axis of the outlet chamber.

4. A heat pump as set forth in claim 1, wherein the heating means is a spiral heat generating tube.

5. A heat pump according to claim 4, wherein the axis of the heating means is collinear with the axis of the inlet chamber.

6. A heat pump according to any of claims 1 to 5, wherein the housing comprises:

the liquid inlet cavity is formed inside the liquid inlet part, and the connecting cavity is formed inside the connecting part;

the second body is internally provided with the liquid outlet cavity;

the connecting part is provided with a first connecting structure, the second body is provided with a second connecting structure, and the first connecting structure is fixedly connected with the second connecting structure.

7. A heat pump according to claim 6, wherein the connection chamber has a constriction whose cross-sectional area decreases in the direction from the inlet chamber to the outlet chamber.

8. A heat pump as claimed in claim 6, wherein the heating means comprises a wiring portion and a heating portion, the wiring portion and the heating portion are connected, the liquid inlet portion is provided with a groove, the wiring portion is fixed in the groove, and the heating portion is suspended in the liquid inlet chamber.

9. A heat pump as claimed in claim 8, wherein the inlet chamber has a flared section, the cross-sectional area of which increases in a direction towards the groove.

10. A heat pump as claimed in claim 6, wherein flow guiding ribs are provided in the connecting chamber for guiding the fluid to flow into the outlet chamber.

11. A cleaning device comprising the heat pump according to any one of claims 1 to 10, the cleaning device having a cleaning space for cleaning an article, a water inlet of the cleaning space communicating with the liquid outlet chamber.

12. A cleaning device as claimed in claim 11, wherein the cleaning device is a washing machine or a dishwasher.

Technical Field

The invention belongs to the field of fluid pumps, and particularly relates to a heating pump and a cleaning device.

Background

In order to achieve reliable cleaning effect in existing electric appliances, such as dish washer or washing machine, it is necessary to heat water to a higher temperature to improve cleaning cleanliness. The water pump with the heating function is usually adopted to heat water while pumping water, so that hot water can be output simultaneously. In the related art, the heating device is integrated in the casing of the water pump, and is close to the impeller and the volute of the water pump. Thus, the impeller and the volute are easily degraded by the heat radiation of the heating device.

Disclosure of Invention

In view of this, the present invention provides a heat pump and a cleaning device to solve the technical problem that the impeller and the pump casing are susceptible to thermal aging.

In order to solve the above problems, the technical solution of the present invention is realized as follows:

the heat collection pump provided by the present embodiment includes a heat pump, including: the shell is internally provided with a liquid inlet cavity, a connecting cavity and a liquid outlet cavity which are sequentially communicated; the heating device is arranged in the liquid inlet cavity; the impeller is arranged in the liquid outlet cavity; the impeller comprises an inlet end and an outlet end, the inlet end is communicated with the connecting cavity, and the outlet end is communicated with the liquid outlet cavity.

Further, the axis of the connecting cavity is perpendicular to the axis of the liquid outlet cavity.

Further, the axis of the liquid inlet cavity is parallel to the axis of the liquid outlet cavity.

Further, the heating device is a spiral heating tube.

Further, the axis of the heating device is collinear with the axis of the liquid inlet cavity.

Further, the housing includes: the liquid inlet cavity is formed inside the liquid inlet part, and the connecting cavity is formed inside the connecting part; the second body is internally provided with the liquid outlet cavity; the connecting part is provided with a first connecting structure, the second body is provided with a second connecting structure, and the first connecting structure is fixedly connected with the second connecting structure.

Further, the connection chamber has a constriction section, the cross-sectional area of which decreases in the direction from the inlet chamber to the outlet chamber.

Further, heating device is including the wiring portion and the heating portion that are used for connecting, seted up the recess on the liquid inlet portion, wiring portion is fixed in the recess, the heating portion hang in the feed liquor chamber.

Further, the inlet chamber has a flared section, the cross-sectional area of which increases in a direction towards the groove.

Furthermore, a flow guide rib for guiding the fluid to flow into the liquid outlet cavity is arranged in the connecting cavity.

The embodiment of the invention also provides a cleaning device, which comprises the heating pump, the cleaning device is provided with a cleaning space for cleaning articles, and a water inlet of the cleaning space is communicated with the liquid outlet cavity.

Further, the cleaning device is a washing machine or a dishwasher.

The invention provides a heating pump.A liquid inlet cavity, a connecting cavity and a liquid outlet cavity which are communicated are formed in a shell, and liquid flows in from the liquid inlet cavity and flows out from the liquid outlet cavity after passing through the connecting cavity. The heating device is arranged in the liquid inlet cavity, the impeller is arranged in the liquid storage cavity, and the connecting cavity is arranged between the impeller and the heating device at intervals. Like this, realized setting heating device and impeller in the cavity of difference to reduced heating device's high temperature radiation impeller and pump case, avoided causing impeller and the premature ageing condition of pump case to take place, made the reliability and the life-span of heating pump use obtain promoting.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a heat pump provided by an embodiment of the present invention;

fig. 2 is a schematic sectional view of a heat pump according to an embodiment of the present invention.

Description of reference numerals:

1-a heat pump; 10-a housing; 11-a first body; 111-a liquid inlet; 112-a connecting portion; 113-a groove; 12-a second body; 13-a liquid inlet cavity; 131-a flared section; 14-a connecting lumen; 141-a necking section; 15-a liquid outlet cavity; 16-a first connecting structure; 17-a second connecting structure; 2-a heating device; 21-a wiring portion; 22-a heating section; 3-an impeller; 31-an inlet end; 32-an outlet end; 5-sealing ring; 6-inlet connection pipe; 7-a drive device; 8-fluid channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.

As shown in fig. 1, a heat pump 1 according to an embodiment of the present invention may be used in various apparatuses requiring heating liquid, such as a dishwasher, a washing machine, a dryer, a washing and drying machine, and a medium passing through the heat pump 1 may be water or a liquid with foam. Those skilled in the art will appreciate that the heating pump 1 of the embodiment of the present invention is not limited to the structure of the heating pump 1 itself. The outlet and inlet of the heat pump 1 may be connected to a pipe outside the heat pump 1 according to the needs of the actual application.

As shown in fig. 1 and 2, the heat pump 1 includes a housing 10, a heating device 2, and an impeller 3. The interior of the housing 10 forms an inlet chamber 13, a connecting chamber 14 and an outlet chamber 15 which are communicated in sequence. In the working process, under the centrifugal pressurization effect generated by the rotation of the impeller 3, fluid can enter from the liquid inlet cavity 13 and then flow to the liquid outlet cavity 15 through the connecting cavity 14 to be discharged for use. Specifically, the heating device 2 is a device capable of generating heat for heating the fluid; the heating device 2 is preferably arranged to be able to generate heat when energized. The heating device 2 is disposed in the liquid inlet chamber 13, and is used for heating the fluid in the liquid inlet chamber 13, so that the input fluid is first heated in the liquid inlet chamber 13 and then is sucked and discharged. The impeller 3 is arranged in the liquid outlet cavity 15, the impeller 3 comprises an inlet end 31 and an outlet end 32, the inlet end 31 is communicated with the connecting cavity 14, the outlet end 32 is communicated with the liquid outlet cavity 15, and the inlet end 31 and the outlet end 32 are preferably arranged in a mutually perpendicular mode. The axis of the impeller 3 may coincide with the axis of the connecting chamber 14, i.e. fluid entering the inlet port 31 along the axis of the connecting chamber 14 flows out of the outlet port 32 by centrifugal pressurization of the impeller 3 and then into the outlet chamber 15. The impeller 3 is connected with a driving device 7, and the driving device 7 drives the impeller to rotate so as to centrifugally pressurize and apply work to the fluid flowing through the impeller 3, thereby improving the speed of the fluid. The drive means 7 may be fixed with the housing 10. The driving device 7 can be a motor, the driving device 7 and the impeller 3 can be connected with an output shaft of the motor through internal threads of the impeller 3, and the screwing direction of the internal threads of the impeller 3 is opposite to the rotating direction of the driving device 7 so as to ensure that the impeller 3 cannot fall off when in work. The shape, number, spacing, etc. of the blades of the impeller 3 can be designed according to actual needs.

In the embodiment of the invention, the heating device 2 is arranged in the liquid inlet cavity 13, the impeller 3 is arranged in the liquid outlet cavity 15, and the liquid inlet cavity 13 is communicated with the liquid outlet cavity 15 through the connecting cavity 14. Like this, realized setting heating device 2 and impeller 3 in the cavity of difference, the spaced distance equals the length of connecting chamber 14 between feed liquor chamber 13 and the play liquid chamber 15 moreover to can reduce heating device 2's high temperature radiation impeller 3 and pump case, and then avoid causing the condition emergence of impeller 3 and the too early ageing of pump case, make the reliability and the life-span of heating pump 1 use obtain promoting.

In some embodiments, as shown in fig. 2, it is adopted that the axis of the connecting cavity 14 is arranged to be perpendicular to the axis of the liquid outlet cavity 15, and the axis of the impeller 3 is coincident with the axis of the connecting cavity 14. The axial input of the fluid from the impeller 3 and then the radial output from the impeller 3 are achieved. Meanwhile, the axis of the liquid inlet cavity 13 is parallel to the axis of the liquid outlet cavity 15, and the interface connecting the liquid inlet cavity 13 and the external pipeline and the outlet connecting the liquid outlet cavity 15 and the external pipeline face to the same side. Thus, not only is the convenience of disassembly and assembly improved, but also the axis of the liquid outlet cavity 15 is perpendicular to the axis of the impeller 3, so that the overall size of the casing 10 can be reduced, and the overall size of the heating pump 1 can be miniaturized.

As shown in fig. 2, in the embodiment of the present invention, the heating device 2 is preferably provided as a spiral heat generating pipe. The spiral heating tube has a larger heating area. Therefore, the fluid in the liquid inlet cavity 13 can have a larger contact area with the spiral heating tube, so that the fluid can be heated quickly, and the efficiency of heating the fluid is improved. The spiral heating tube is preferably arranged to be wound in a clockwise direction, as viewed from an end of the liquid inlet chamber 13 for fluid to enter, toward an inside of the liquid inlet chamber 13. That is, the winding direction of the spiral heating tube is consistent with the rotation direction of the fluid in the liquid inlet cavity 13, the winding effect of the water flow can be enhanced, and the fluid is more fully contacted with the spiral heating tube, so that the fluid is uniformly heated, and the dry burning is avoided. Of course, it should be noted that in other embodiments, the heating device 2 may have other forms, such as a thick film.

As shown in fig. 2, in a specific arrangement, since the liquid inlet chamber 13 is shaped like a straight cylinder, the heating device 2 can uniformly heat the fluid in the liquid inlet chamber 13, thereby preventing the fluid from being heated unevenly and even being burned dry. It is therefore preferred to arrange the axis of the heating device 2 in line with the axis of the intake chamber 13. Thus, the heating device 2 is located at the center of the liquid inlet chamber 13, the distance between the heating device 2 and the inner wall of the liquid inlet chamber 13 can be kept approximately the same, and the periphery of the heating device 2 is filled with the fluid with approximately uniform thickness, so that the fluid at each position can be uniformly heated, the temperature of the output fluid can be kept stable, and the use requirement can be reliably met.

As shown in fig. 1 and 2, the housing 10 includes a first body 11 and a second body 12. The first body 11 comprises a liquid inlet part 111 and a connecting part 112 which are connected, a liquid inlet cavity 13 is formed inside the liquid inlet part 111, and a connecting cavity 14 is formed inside the connecting part 112; the second body 12 has a liquid outlet chamber 15 formed therein. In a specific arrangement, it is preferable to produce the first body 11 by integral molding, so that the liquid inlet portion 111 and the connecting portion 112 are arranged in a mutually perpendicular manner, the shape of the molded first body 11 is "L" shaped, and at least a portion of the connecting portion between the liquid inlet portion 111 and the connecting portion 112, which is located inside, is arranged in an arc shape, so that the fluid can smoothly pass through. In the embodiment of the present invention, in order to realize the detachable assembly connection between the first body 11 and the second body 12, the first connecting structure 16 is disposed on the connecting portion 112, the second connecting structure 17 is disposed on the second body 12, and the first body 11 and the second body 12 are detached through the detachable connection between the first connecting structure 16 and the second connecting structure 17. The housing 10 is provided with the first body 11 and the second body 12 which are independent from each other, so that not only are the installation of parts required to be installed inside the first body 11 and the second body 12 facilitated, but also the disassembly and assembly maintenance of the internal parts are facilitated. Of course, in other embodiments, after the installation of the internal components is completed, the connection mode between the first connection structure 16 and the second connection structure 17 may also be set to be non-detachable connection, so as to improve the sealing performance of the connection.

As shown in fig. 2, in order to realize the sealing performance of the connection between the first connecting structure 16 and the second connecting structure 17 and avoid liquid leakage, a sealing ring 5 is arranged at the joint of the first connecting structure 16 and the second connecting structure 17, and a gap between the first connecting structure 16 and the second connecting structure 17 is sealed through the sealing ring 5, so that the sealing performance after the connection is improved. Specifically, the first connecting structure 16 and the second connecting structure 17 may be respectively provided with an internal thread and an external thread which can be mutually matched and connected; or a fixture block, a clamping groove and other quick-release structures. Meanwhile, an accommodating space for accommodating the sealing ring 5 is arranged on the first connecting structure 16 and/or the second connecting structure 17, so that the sealing ring 5 is stably clamped in the accommodating space, and the reliability of the sealing effect is improved.

As shown in fig. 2, the connecting chamber 14 has a converging section 141, and the cross-sectional area of the converging section 141 decreases in the direction from the inlet chamber 13 to the outlet chamber 15. Specifically, the throat section 141 is disposed near one end of the liquid inlet chamber 13 in the length direction of the connection chamber 14. Thus, when the fluid flowing in from the liquid inlet chamber 13 flows to the liquid outlet chamber 15 and passes through the reducing section 141 of the connecting chamber 14, the effect of rectifying the fluid can be achieved along with the reduction of the cross-sectional area of the reducing section 141, so that the turbulence degree of the fluid is reduced, the impeller 3 can keep the flow stable and not varied in the process of conveying the fluid, and the noise in the process of working is reduced. In practical arrangement, the reducing section 141 may be provided with only a part of the length range in the length direction of the connecting chamber 14, and the cross-sectional area of the remaining part of the connecting chamber 14 is the same as the minimum cross-sectional area of the reducing section 141; it is also possible to extend the constriction section 141 from one end to the other along the length of the connecting chamber 14 and to arrange the constriction section 141 in such a way that the cross-sectional area is gradually reduced.

As shown in fig. 2, in the embodiment of the present invention, the heating device 2 includes a wire connecting portion 21 and a heating portion 22 for connection, a groove 113 is formed on the liquid inlet portion 111, the wire connecting portion 21 is fixed in the groove 113, and after the wire connecting portion 21 is fixed, the heating portion 22 is suspended in the liquid inlet chamber 13. Specifically, in order to realize that heating portion 22 can extend in the length direction of liquid inlet chamber 13, it is preferable to adopt groove 113 provided at the bottom of liquid inlet portion 111, that is, as seen from the direction of the inside of liquid inlet chamber 13 from the end of the fluid flowing into liquid inlet chamber 13 chamber at first, groove 113 is located at the bottom of liquid inlet chamber 13, and wiring portion 21 is inserted in groove 113, and a part of it is worn out to the outside of liquid inlet portion 111, so as to be able to be connected with an external power supply line. At the same time, the portion of the connecting portion 21 extending out needs to be fixed and sealed to prevent leakage.

In a particular arrangement, as shown in figure 2, a flared section 131 is provided in the inlet chamber 13, and the cross-sectional area of the flared section 131 increases in a direction towards the groove 113. The flared section 131 is located at the end where the fluid first enters the inlet chamber 13. In this way, the entering fluid firstly passes through the flared section 131 in the process of entering the liquid inlet chamber 13, and the contact area of the fluid and the heating device 2 is increased along with the expansion of the cross-sectional area of the flared section 131, and simultaneously, the flow speed of the fluid is also reduced. Therefore, the time for the fluid to be heated by the heating device 2 in the liquid inlet cavity 13 is increased, and the fluid is heated to be favorable.

During actual assembly, the mode of installing the heating device 2 into the liquid inlet cavity 13 is as follows: the heating device 2 is inserted from the end of the inlet 111 provided with the flared section 131. Therefore, when the flared section 131 is provided, it is preferable to ensure that the width of the smallest cross-sectional area of the flared section 131 is sufficient for the heating device 2 to pass through, so that the heating device 2 can be inserted into the liquid inlet chamber 13.

In some embodiments, ribs (not shown) are provided in the connecting chamber 14 for guiding the fluid to flow into the outlet chamber 15. The connection chamber 14 is similarly cylindrical, and the flow guiding ribs are arranged along the circumferential direction when viewed from the end of the connection chamber 14 connected with the liquid inlet chamber 13 to the end connected with the liquid outlet chamber 15 of the connection chamber 14. Specifically, the flow guiding ribs may be plural, and are arranged at intervals in the axial direction of the connecting cavity 14, i.e., in the direction from one end to the other end. Through the setting of connecting chamber 14, can play the water conservancy diversion effect to the fluid in connecting chamber 14, improve the smoothness nature in fluid from connecting chamber 14 internal flow to play liquid chamber 15.

As shown in fig. 1 and 2, the heat pump 1 provided in the embodiment of the present invention further includes an inlet connection pipe 6 for connecting an inlet pipe. The inlet connection pipe 6 is connected to one end of the liquid inlet portion 111, which is provided with a flared section 131, and is fixed to the liquid inlet portion 111 as a whole. The inlet connection pipe 6 and the liquid inlet portion 111 can be connected through various connection modes, such as threaded connection, clamping connection, bonding connection, welding connection and the like. Moreover, in order to ensure the sealing performance of the joint, an elastic sealing element is arranged at the joint for sealing, so that liquid leakage at the joint is avoided. The preferred connection that sets up to dismantling between 6 and the feed liquor portion 111 of import takeover to, when heating device 2 mode trouble, through dismantling import takeover 6, can change or maintain heating device 2, and need not to report useless whole heat pump 1 when heating device 2 breaks down, practiced thrift use cost.

As shown in fig. 2, in a specific arrangement, a fluid channel 8 is formed on an inner wall of the liquid outlet cavity 15 at one end where the impeller 3 is installed, and after centrifugal pressurization of the impeller 3, fluid flows into the other end (an output end for outputting the fluid) of the liquid outlet cavity 15 through the fluid channel 8, flows from a tangential direction to the output end, and keeps a stable flow direction, thereby avoiding a change in the flow direction of the fluid. The air bubbles sucked by the impeller 3 can be discharged smoothly without being gathered in the liquid outlet cavity 15, and the noise caused by the gathering of the air bubbles can be avoided. The cross sectional area of the fluid channel 8 is increased along the direction of the fluid output from the liquid outlet cavity 15, the cross sectional area is inversely proportional to the flow velocity of the fluid on the premise that the flow of the fluid is not changed, the flow velocity of the fluid flow during output is reduced by increasing the cross sectional area of the fluid channel 8, the dynamic pressure of the fluid is recovered, and the effect of increasing the lift of the heating pump 1 is achieved. In practical arrangement, the cross-sectional area of the fluid channel 8 is preferably increased uniformly along the direction of the fluid output from the liquid outlet cavity 15, so as to avoid the loss of the kinetic energy of the fluid due to the abrupt change of the cross-section.

According to the heating pump provided by the embodiment of the invention, the liquid inlet cavity, the connecting cavity and the liquid outlet cavity which are sequentially communicated are formed in the shell, the heating device is arranged in the liquid inlet cavity, the impeller is arranged in the liquid storage cavity, and the heating device and the impeller are positioned in different cavities. Therefore, the impeller and the heating device are separated by the connecting cavity, so that the high-temperature radiation impeller and the pump shell of the heating device are reduced, the condition that the impeller and the pump shell are aged too early is avoided, and the use reliability and the service life of the heating pump are improved.

The embodiment of the invention also provides a cleaning device. The cleaning device comprises the heating pump, the cleaning device is provided with a cleaning space for cleaning articles, and a water inlet of the cleaning space is communicated with a liquid outlet cavity on the heating pump. Therefore, the heating pump can heat water while injecting water into the clean space.

In some embodiments, the cleaning device may be a dishwasher, for example, and the dishes are placed in the cleaning space and heated by the heat pump or water mixed with detergent and then poured into the cleaning space to wash the dishes. In addition, when the tableware is rinsed, water can be heated and then injected into the cleaning space as required to wash away foams on the bowl, so that the purpose of cleaning the tableware is achieved.

In other embodiments, the cleaning device may be a washing machine, for example, and the laundry is put into the cleaning space, and the heat pump heats water or water mixed with detergent and then injects the heated water into the cleaning space to wash the laundry. In addition, when the clothes are rinsed, water can be heated and then injected into the cleaning space as required to wash away foams on the clothes, so that the aim of cleaning the clothes is fulfilled.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.