CN210003517U - kinds of washing device pump - Google Patents

Abstract

The utility model discloses a washing unit's pump, including the pump body, the pump body forms the pump chamber that holds liquid through the pump case and the second pump case of lock, be provided with on the pump body, inlet and the liquid outlet that communicates with the pump chamber, be provided with in the pump chamber, the impeller of being connected with the motor, still including setting up in the liquid outlet of the pump body, carry out the second pressure switch that responds to the liquid that flows through the liquid outlet, extend the setting from the pump body outside to the pump chamber in, carry out the heating element that heats to the liquid in the pump chamber, the impeller divides the pump chamber into the second cavity that is close to the cavity of inlet and keeps away from the inlet, heating element sets up in the second cavity, sets up on the impeller body, makes the liquid in the second cavity flow back to the impeller to the circulation hole that flows out from the liquid outlet.

Description

kinds of washing device pump

Technical Field

The utility model belongs to the technical field of domestic appliance, specifically speaking relates to kinds of washing device's pump.

Background

The dishwasher is excellent as products, and at present, the technology of the dishwasher generally uses a heat pump with washing and heating functions integrated into a body, and a pump body with heating functions generally comprises an upper pump shell, a lower pump shell, an impeller arranged in the pump shell, a motor used for driving the impeller to rotate, a heating body used for heating fluid and the like.

The Chinese patent with the application number of CN201810240903.5 discloses heating pumps for dish washers and a dish washer with the heating pumps for dish washers, wherein the heating pumps for dish washers comprise a pump shell, a motor, an impeller and a heating assembly, the heating pump cavity is arranged in the pump shell, the heating pump cavity is provided with an inlet and an outlet, the motor is provided with a rotating shaft and connected with the pump shell, the rotating shaft extends into the heating pump cavity, the impeller is arranged in the heating pump cavity and mounted on the rotating shaft, the impeller comprises a body part and an extending part, the diameter of the extending part is smaller than that of the body part, the heating assembly comprises a heating pipe, a fuse and a heating wire arranged in the heating pipe, the heating assembly is arranged between the inlet and the impeller, the inner diameter of an arc-shaped section is larger than the outer diameter of the extending part of the impeller, and.

The Chinese patent with the application number of CN201810143548.X discloses heat collection pumps and dish washing machines, wherein each heat collection pump comprises a pump shell, a partition, a second-stage pump cavity and a heating element, wherein the pump shell is provided with a pump cavity, a water inlet and a water outlet are formed in the upper end of the pump shell, the partition is arranged in the pump cavity and divides the pump cavity into a -stage pump cavity and a second-stage pump cavity, the second-stage pump cavity is located above a -stage pump cavity, a spiral diffusion flow channel located in a -stage pump cavity is formed in the partition, a flow channel outlet communicated with the second-stage pump cavity is arranged at the tail end of a -stage spiral diffusion flow channel, at least part of the top wall of a spiral diffusion flow channel is communicated with the second-stage pump cavity, the second-stage pump cavity is.

Although the above prior art proposes a technical solution for solving the problems of dry burning prevention of the heating pump, large volume of the pump body, poor flow uniformity, and the like, the efficiency is low when the liquid circulates in the pump body; the heating assembly occupies an overlarge space in the pump body; the heating pipe part of the heating assembly is provided with technical defects, which cause uneven heating or overlarge local stress caused by thermal coupling, and influence on the service life of the heating pipe.

Therefore, it is necessary to improve the defects and shortcomings of the prior art, and kinds of pumps of the washing device are provided, which can reduce the volume of the pump body on the premise of ensuring the function of the pump body, improve the washing accommodation space of the washing device, and simultaneously improve the flow area condition in the pump cavity by improving the structure of the impeller, so that the flow is more uniform, the impact on the cavity wall is reduced, the service life of the pump body is prolonged, and the structure change through the heating assembly makes the thermal field in the pump cavity more uniform, thereby avoiding the problems caused by thermal coupling.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide pumps for a washing device which can overcome the above problems or at least partially solve the above problems.

In order to solve the technical problem, the basic idea of the technical proposal adopted by the utility model is that the pump of kinds of washing devices comprises

A pump body;

the pump body forms a pump cavity for containing liquid through the buckled th pump shell and the second pump shell;

the pump body is provided with a liquid inlet and a liquid outlet which are communicated with the pump cavity;

an impeller connected with the motor is arranged in the pump cavity;

also comprises

The second pressure switch is arranged at the liquid outlet of the pump body and is used for sensing the liquid flowing through the liquid outlet;

the heating component is arranged from the outside of the pump body to the inside of the pump cavity and used for heating liquid in the pump cavity;

the impeller divides the pump cavity into an th chamber close to the liquid inlet and a second chamber far away from the liquid inlet;

the heating assembly is arranged in the second chamber;

and the circulating hole is arranged on the impeller body, so that the liquid in the second chamber flows back to the impeller and flows out of the liquid outlet.

Wherein, the

Liquid flows into the pump cavity through the liquid inlet, sequentially flows through the impeller and the heating assembly and then flows out of the liquid outlet;

in embodiments, the projection of the liquid outlet in the pump cavity at least covers the impeller and part of the heating assembly, and the arrangement of covering the impeller and the heating assembly enables the deposited liquid in the second cavity to be effectively circulated, thereby avoiding unsmooth circulation of the flow field caused by excessive deposition of the liquid in the second cavity and further influencing the use of the pump body.

Further, the above

The impeller comprises a wheel body which is matched with the pump shell in shape and a second wheel body which is provided with blades;

the th wheel body is provided with a water inlet corresponding to the liquid inlet;

at least circulating holes are formed between the two blades on the second wheel body;

a liquid outlet cavity is formed between the th wheel body and the second wheel body;

through redefining the impeller structure, the liquid flow area in the pump cavity is replanned, the flow of the liquid in the pump cavity is more uniform, and the impact on the cavity wall caused by too many corners is avoided.

, the liquid flows into the impeller via the liquid inlet to form a flow guide with the blades,

th waterway flowing through the liquid outlet cavity and flowing out of the liquid outlet;

the water flows through the liquid outlet cavity, enters the second cavity, flows back to the liquid outlet cavity from a circulating hole arranged on the second wheel body, and finally flows to a th water channel and flows out of the liquid outlet;

meanwhile, through the impeller structure, a second water path which flows back to the inside of the impeller from the lower circulation hole of the impeller is arranged, so that the heating function of the heating assembly on liquid is guaranteed, the drainage basin in the pump cavity is more reasonable, the sucking and discharging is realized, meanwhile, the occupation of the impeller and the heating assembly on the space of the pump cavity is reduced, and the size of the pump body is reduced.

In embodiments, the circulation holes have a diameter equal to or greater than 5% of the impeller diameter.

Further , the

The liquid inlet comprises segments of drainage walls extending into the pump cavity;

the drainage wall extends into a water inlet arranged on the th wheel body and leads the liquid flowing through the liquid inlet into the liquid outlet cavity of the impeller;

through the structure that sets up the drainage wall between the inlet to the impeller and the pump body for liquid can directly flow in the impeller, has avoided setting up too high or too big or too complicated drainage structure on the impeller, simultaneously, carries out the shape between the impeller and the pump body and constructs suitable setting, very big reduction the clearance between the impeller and the pump body, makes the volume of the pump body obtain the reduction of steps.

And further , the

At least bulges are arranged on the surface of the blade facing the of the wheel body at intervals;

corresponding to the bulge arranged on the blade, a corresponding small hole is arranged on the th wheel body

When the th wheel body is buckled with the second wheel body, the bulge passes through the small hole, and after the melting treatment, the th wheel body and the second wheel body form a body structure;

the th wheel body and the second wheel body of the impeller are redefined in connection relation, so that after the th wheel body and the second wheel body are positioned through the bulges and the small holes, the wheels are melted into bodies.

In embodiments, the vanes are volute vanes arranged on the second wheel body and extending from the rotation center of the impeller to the edge of the impeller;

the width of the blade is gradually reduced along with the extension arrangement towards the edge of the impeller;

in embodiments, the number of blades is prime;

the outlet angle formed by the extension line of the blade and the rotating tangent line of the blade is between 30 degrees and 50 degrees, and the performance of the overall structure of the impeller and the effect on drainage of a drainage basin are improved by adopting the arc-shaped blade and a specific outlet angle;

and, said

The inner wall of the pump body adopts an involute design, and water retaining ribs are formed on the inner wall of the pump cavity close to the liquid outlet through the extension of the involute;

in embodiments, the ratio of the area of the liquid outlet after being blocked by the water blocking rib to the area of the liquid outlet is less than or equal to 0.67;

in embodiments, the involute angle is between 3 ° and 7 °;

in embodiments, the ratio of the diameter of the impeller to the diameter of the pump body is between 0.75 and 0.85, and an involute design is adopted in the pump body, so that the reasonability of a liquid flow field in the pump body is improved, and the performance and the service life of the pump body structure are also improved.

And, the above-mentioned

A liquid outlet pipe is arranged at the liquid outlet;

an th mounting seat for fixing the second pressure switch is arranged on the liquid outlet pipe;

in embodiments, the second pressure switch induces the liquid level in the pump cavity to form induced planes, the pressure switch is arranged at the liquid outlet pipe of the pump body, the liquid flowing through the liquid outlet is detected, step ensures the heating function of the pump body, and meanwhile, the pressure switch is directly connected with the liquid outlet pipe, so that the influence of the hot liquid on the pressure switch is avoided.

step, the

The heating assembly extends into the pump cavity from the radial direction of the pump body, and extends into the pump cavity from the radial direction of the pump body, so that a plane included angle is avoided between the heating assembly and the impeller, noise is generated when liquid circulates in the pump cavity, and trickle flow is generated under the action of the included angle to impact the wall of the pump cavity, so that the service life of the pump body is influenced after long-time use;

in addition, the heating assembly comprises

The heating pipe, and a fuse and a heating wire arranged in the heating pipe;

the th heating unit, the second heating unit and the third heating unit are sequentially arranged and matched with the nut through penetrating bolts, so that the heating pipe is connected with the pump body, the connection mode of the heating assembly and the pump body is redefined, the heating assembly is clamped inside and outside the pump body, the sealing performance of the device is improved, the disassembly, the maintenance and the replacement of a pressure switch of the heating assembly are improved, and the user experience is improved;

in embodiments, a heating tube includes an arcuate section, a linear section, and a second linear section;

the th straight line segment is connected with the end of the arc segment, and the second straight line segment is connected with the other end of the arc segment;

the fuse is arranged in at least of the th linear segment and the second linear segment and far away from the arc-shaped segment;

the heating pipe extends into a second cavity in the pump cavity from the side part of the pump body;

the arc-shaped part surrounds the impeller and is spaced from the impeller;

in embodiments, the arc-shaped section, the straight line section and the second straight line section of the heating pipe are located in planes together to form heating planes for heating the liquid flowing through, so that the thermal stress coupling is more uniform on the heating pipe, the structure of the heating pipe is more compact, and the condition that the service life of a heating assembly is shortened or a safety accident is caused due to local stress concentration is avoided.

Further , the

The th heating unit forms covers or shells or glands and extends outwards from the pump cavity to realize the sealing of the second heating unit in the pump cavity;

the th heating unit prevents the second heating unit from being heated and deformed in the bolt mounting direction;

in embodiments, the second heating unit is matched with the mounting groove on the pump body and the third heating unit, extends into the pump cavity from the outer side to the inner side of the pump body, and realizes the sealing of the pump cavity under the action of the heating unit;

in embodiments, the third heating unit is matched with the mounting groove on the pump body, and the second heating unit is pressed against the mounting groove of the pump body from the outer side to the inner side of the pump body, so that the sealing of the second heating unit is realized;

in embodiments, the , second and third heating units form mounting planes by mating with mounting slots provided on the pump body.

And further , the

The induction plane of the second pressure switch for inducing the liquid level in the pump cavity is not lower than the heating plane of the heating assembly for heating the liquid in the pump cavity and/or the installation plane formed by the heating assembly and the installation groove in a matched mode, the dry burning of the heating assembly is effectively avoided, the pressure switch in the induction plane is sensitive to the liquid in the pump cavity, the working efficiency of the pump body is improved, and the waste of energy is also avoided;

in embodiments, the heating plane and the mounting plane are coplanar.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

1. the utility model arranges the mounting plane and the heating plane of the heating component in the same plane, thereby ensuring that the thermal stress coupling is more uniform on the heating pipe and the structure of the heating pipe is more compact in the heating process, and avoiding the condition of short service life of the heating component or safety accidents caused by local stress concentration;

2., arranging the induction plane and the heating plane of the pressure switch and/or the installation plane in the same plane, effectively avoiding the dry burning of the heating assembly, and making the pressure switch in the same induction plane sensitive to the liquid in the pump cavity, thus improving the working efficiency of the pump body and avoiding the waste of energy;

3., the position relation of the impeller and the heating component is set, so that the condition of a flow area in the pump cavity is improved, the flow is more uniform, the heating efficiency is higher, the heating component is arranged at the lower part of the impeller, the heating efficiency is ensured, the extra occupation of the heating component on the space of the pump body is reduced, the heating component is prevented from being impacted by liquid entering the pump cavity, and the safety performance of the heating component is improved;

4., the structure of the heating component is improved, and the pressure switch is combined with the heating component, so that the heating plane, the mounting plane and the sensing plane are located at the plane, and meanwhile, the connection mode of the heating component and the pump body is redefined through the improvement of the structure of the heating component, so that the heating component is clamped inside and outside the pump body, the sealing performance of the device is improved, the disassembly, the maintenance and the replacement of the heating component and the pressure switch are improved, and the user experience is improved;

5., redefining the impeller structure to re-plan the liquid flow area in the pump cavity, so that the liquid flow in the pump cavity is more uniform, avoiding impact on the cavity wall caused by excessive corners, and setting a second water path from the circulation hole at the lower part of the impeller to the inner part of the impeller by the impeller structure, so that the flow area in the pump cavity is more reasonable while the heating component heats the liquid, thereby realizing suction and discharge of bodies, reducing the occupation of the impeller and the heating component on the space of the pump cavity, and reducing the volume of the pump body;

6., liquid can directly flow into the impeller by arranging a drainage wall structure between the impeller and the liquid inlet of the pump body, so that the impeller is prevented from being provided with an overhigh or overlarge or complicated drainage structure, and meanwhile, the shape between the impeller and the pump body is arranged in a proper structure, so that the gap between the impeller and the pump body is greatly reduced, and the volume of the pump body is reduced by steps;

7., redefining the connection relationship between the wheel body and the second wheel body of the impeller, so that the body is formed by hot melting after the wheel body and the second wheel body are positioned through bulges and small holes, and the performance of the overall structure of the impeller and the effect of draining a drainage basin are improved by adopting arc-shaped blades and a specific outlet angle;

8., the pump body adopts an involute design, so that the reasonability of a liquid flow field in the pump body is improved, and the performance and the service life of the pump body structure are improved;

9., arranging a pressure switch at the liquid outlet pipe of the pump body to detect the liquid flowing through the liquid outlet, ensuring the heating function of the pump body, and simultaneously, the pressure switch is directly connected with the liquid outlet pipe to avoid the influence of the hot liquid on the pressure switch;

10., a water retaining rib formed by an extension line of an involute is added at the liquid outlet pipe on the inner wall of the pump cavity, so that the action of the impeller on liquid can be effectively increased, the action time is prolonged, and the water pressure is increased;

11. step by step, stretch into the pump intracavity with heating element from the radial direction of the pump body, avoided forming plane contained angle between heating element and the impeller for liquid produces the noise when pump intracavity loop, and under the effect of contained angle, produces the trickle simultaneously, causes the impact to the pump chamber wall, uses the life who influences the pump body for a long time.

Embodiments of the present invention are described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide an understanding of the invention at and are incorporated herein by reference, are provided to illustrate certain embodiments of the invention and together with the description serve to explain the invention without unduly limiting the invention.

In the drawings:

FIG. 1 is an exploded view of a pump body structure of a washing device according to the present invention, which is used to show the matching relationship of various components in the pump body;

FIG. 2 is a schematic view of a sectional view of the pump body structure of the washing device of the present invention, which is used to show the arrangement of the heating assembly, the impeller, etc. inside the pump body;

fig. 3 is a second schematic view of the cross-sectional view of the pump body structure of the washing device of the present invention, which is rotated 90 ° based on fig. 2, and the inner chamber of the pump body structure is shown from another angles;

fig. 4 is a schematic view showing the explosion of the heating element of the pump body structure, showing the explosion of each part of the heating element along the installation direction of the heating element;

fig. 5 is a second schematic view of the pump body structure of the present invention illustrating the heating assembly exploded from another views of fig. 4;

fig. 6 is a schematic cross-sectional view of the heating assembly of the pump body structure of the present invention, which is a cross-sectional view of the heating assembly based on the front view;

fig. 7 is an exploded view of the impeller of the pump body structure of the present invention;

fig. 8 is a schematic view of the impeller basin of the pump body structure of the present invention, showing the basin formed by the liquid flowing in the impeller;

fig. 9 is a schematic top view of the second wheel body of the impeller of the present invention, in which the outlet angle is shown;

fig. 10 is a schematic diagram of an involute of a pump body structure of the present invention, which mainly shows the involute angle in the involute design in the pump cavity;

fig. 11 is a schematic view of the pump structure of the present invention, which mainly shows the technical solution of setting the second pressure valve at the liquid outlet;

fig. 12 is a second schematic view of the pump body structure of the present invention, which mainly shows the technical solution of providing a temperature switch outside the pump body;

fig. 13 is a third schematic view of the pump body structure of the present invention, which mainly shows the water retaining rib disposed on the inner wall of the pump cavity near the liquid outlet.

In the drawing, the pump comprises a pump body 1, a pump body 1.1, a pump housing , a pump housing 1.2, a second pump housing, a wheel body 1.3, an involute angle 2, a pump cavity 2.1, a chamber , a chamber 2.2, a second chamber 3, a liquid inlet 4, a liquid outlet 5, an impeller 5.1, a circulating hole 5.2, a wheel body 5.3, a second impeller 5.3, a water inlet 5.4, a water outlet 5.5, a liquid outlet chamber 5.6, a waterway , a waterway 5.7, a second waterway 5.8, a blade 5.9, a bulge 5.10, a small hole 5.11, an outlet angle 6, a motor 7, a heating assembly 7.1, a heating pipe 7.1.1, an arc-shaped section, a heat inlet 7.1.2, a heat outlet , a straight section 7.1.3, a second straight section, a bolt groove 7.2, a bolt, a nut 7.3, a heating unit 7.4, a heating unit , a heat inlet 7.5, a water outlet opening 7.7.1, a water outlet opening 7.7.7.7, a water outlet 7.9, a water outlet 7.9, a water outlet, a water outlet 7.9, a water outlet, a water outlet, a water outlet.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are used to mean, for example, either fixedly or removably connected or physically connected, mechanically or electrically connected, directly or indirectly connected through an intermediary.

The dishwasher is excellent as products, and the present dishwasher technology generally uses a heating pump with washing and heating functions integrated into body, and the pump body 1 with heating function generally comprises an upper pump shell, a lower pump shell, an impeller 5 installed in the pump shell, a motor 6 for driving the impeller 5 to rotate, and a heating body for heating fluid, etc. several existing heating pumps need compact liquid driving and heating parts in the application scene of household appliances which are applied to liquid driving and continuous circulating heating, the heating body is installed inside the pump shell or is a part (such as the upper pump shell or the lower pump shell) of of the pump shell alone, the heating body is installed inside the pump shell, such as an annular heating pipe 7.1, because the heating body needs to be wound between the outer side of the impeller 5 and the pump shell, the pump volume is increased, the pump efficiency is reduced, meanwhile, the safety protection device of the heating pipe 7.1 itself is absent, the heating pipe cannot be manufactured through a test under the condition of a normal heating pipe 7.1, and the sealing structure of the heating pipe is more complicated, such as a heat-resistant heating pipe 461 and a sealing structure, which is more complicated and is needed.

Therefore, to the technical problem that above-mentioned in use exists, the utility model provides a kind of washing device's the pump body 1 structure, can be under the prerequisite of guaranteeing pump body 1 function, reduce the volume of the pump body 1, promote washing device's washing accommodation space, simultaneously through the structure that changes impeller 5, promote the flow domain condition in the pump chamber 2, make the flow more even, it is little to reduce the impact on the chamber wall, prolong the life of the pump body 1, and through heating element 7's structural change, make the thermal field in the pump chamber 2 become more even, the problem that the thermal coupling brought has been avoided, specifically as follows.

Fig. 1 is the explosion diagram of the structure of the pump body 1 of the washing device of the present invention, which is used to show the coordination relationship of each component in the pump body 1, as can be seen from fig. 1, the structure of the pump body 1 of the washing device is divided into two parts, namely, the pump body 1 and the heating component 7, wherein the heating plane and the installation plane of the heating component 7 are located in the same plane, it is ensured that in the heating process, on the heating pipe 7.1, the thermal stress coupling is more uniform, the structure of the heating pipe 7.1 is more compact, the situation of life shortening or safety accident occurrence of the heating component 7 caused by local stress concentration is avoided, in addition, the pump body 1 is respectively provided with the pump shell 1.1, the second pump shell 1.2, the positioning pin 14, the positioning seat 15, the sealing ring 16, the second pump shell 1.2 and the motor 6 along the rotation direction of the impeller 5 according to the installation sequence, the connection between the .1 and the second pump shell 1.2 is realized by the second clamping groove 18, the pressure switch 8.1 and the heating component 7 can also be seen in fig. 1, the arrangement of the pressure switch 8.1 and the heating component 7, the induction switch are arranged in the same induction plane, the induction plane is also arranged in the induction plane, the induction plane of the induction switch 82, the induction plane, the induction switch is avoided, the induction plane, the situation of the induction switch 82, the induction plane.

Fig. 2 is the schematic drawing of in the sectional view of the structure of the washing device pump body 1 for showing the heating element 7, the impeller 5 and so on in the internal setting of the pump body 1, from fig. 2 can see the sectional view of the structure of the pump body 1 including the heating element 7, it can be clearly seen that the heating element 7 is arranged in the lower part of the impeller 5, specifically, the lower part of the impeller 5 refers to the liquid inlet 3 of the structure of the pump body 1 upward, the motor 6 is downward, this position is also the position when the structure of the pump body 1 is installed on the washing device, the projection of the liquid outlet 4 in the pump cavity 2 can be seen, at least, the impeller 5 and part of the heating element 7 are covered, through the arrangement of the impeller 5 and the heating element 7, the deposited liquid in the second cavity 2.2 is effectively circulated, the circulation of the basin caused by the excessive deposition of the liquid in the second cavity 2.2 is not smooth, and the use of the pump body 1 is further influenced, in addition, the arrangement of the impeller 5 and the heating element 7 is arranged in the position relationship, the condition of the basin in the pump cavity 2 is improved, the flow is more uniform, the heating element 7 is arranged, the efficiency is higher, the additional heating element 7 is ensured, and the safety of the heating element 7 is also improved, and the heating element 7 is impacted by the impact on the.

Fig. 3 is the utility model discloses washing unit pump body 1 structure cross-sectional view second sketch map, rotated 90 on the basis of fig. 2, to the inside cavity of pump body 1 structure, demonstrate from angles in addition, particularly, fig. 3 is the left side view of fig. 2, mainly for carrying out clear show with pump cavity 2 in the pump body 1 structure, can see from fig. 3, impeller 5 divides pump cavity 2 into cavity 2.1 that is close to inlet 3 and keeps away from second cavity 2.2 of inlet 3, heating element 7 sets up in second cavity 2.2, position relation through impeller 5 and heating element 7 sets up, the condition in pump cavity 2 interior basin has been improved, make the flow more even, heating efficiency is higher, set up heating element 7 in the lower part of impeller 5, when having guaranteed heating efficiency, the extra occupation of heating element 7 to pump body 1 space has been reduced, heating element 7 has also been avoided receiving the impact of entering into pump cavity 2 interior liquid, the security performance of heating element 7 has been promoted.

Fig. 4 is an schematic diagram of the explosion of the heating component 7 of the pump body 1 structure of the present invention, along the installation direction of the heating component 7, the explosion display is performed on each part of the heating component 7, the structure inside the heating component 7 is decomposed by , it can be seen that the heating plane formed by the heating pipe 7.1 of the heating component 7 and the installation plane formed by the installation part of the heating component 7 are in planes, so as to ensure that the thermal stress coupling is more uniform on the heating pipe 7.1 in the heating process, the structure of the heating pipe 7.1 is more compact, and the situation of the shortening of the service life of the heating component 7 or the occurrence of a safety accident caused by local stress concentration is avoided;

fig. 5 is a second schematic diagram of the explosion of the heating module 7 of the structure of the pump body 1 of the present invention, from another viewing angles with fig. 4, the explosion of each part of the heating module 7 is shown, in order to show the structures of another surfaces of the th heating unit 7.4, the second heating unit 7.5 and the third heating unit 7.6, it can be seen from fig. 5 that the third heating unit 7.6 is provided with a sinking groove, the second heating unit 7.5 is embedded in the sinking groove of the third heating unit 7.6, the th heating unit 7.4 is matched with the second heating unit 7.5 and the third heating unit 7.6 outside the pump cavity 2 from inside the pump cavity 2, and the second heating unit 7.5 is clamped by the action of the bolt 7.2 and the nut 7.3, thereby realizing the sealing of the heating module 7 and the pump body 1;

fig. 6 is a schematic cross-sectional view of the heating assembly 7 of the pump body 1, in which the heating assembly 7 is shown in a cross-sectional view on the basis of a front view, and the technical solution shown in fig. 5 is shown in a cross-sectional view of the front view in steps;

fig. 7 is an exploded view of the impeller 5 of the pump body 1 according to the present invention, in which the th wheel body 5.2 of the impeller 5 is separated from the second wheel body 5.3, so that the skilled in the art can understand the step of the impeller 5, and the connection relationship between the th wheel body 5.2 and the second wheel body 5.3 of the impeller 5 is redefined, so that after the th wheel body 5.2 and the second wheel body 5.3 are positioned by the protrusions 5.9 and the small holes 5.10, they are melted into bodies, and the arc-shaped blades 5.8 and the specific outlet angle 5.11 are adopted, thereby improving the performance of the overall structure of the impeller 5 and the effect of draining the drainage basin;

fig. 8 is a schematic view of a flow field of an impeller 5 of the structure of the pump body 1 according to the present invention, showing a flow field formed by flowing liquid in the impeller 5, as can be seen from fig. 8, the liquid flows into the impeller 5 through a liquid inlet 3, forms a flow guide along with the blades 5.8, flows through a liquid outlet 5.5, and flows out of a water path 5.6 from a liquid outlet 4, flows through the liquid outlet 5.5, enters a second chamber 2.2, flows back to the liquid outlet 5.5 from a circulation hole 5.1 formed in the second impeller 5.3, and finally flows back to a water path 5.6, and flows out of the liquid outlet 4 through the second water path 5.7 arranged in the impeller 5 structure, and flows back to the inside of the impeller 5 from the circulation hole 5.1 at the lower portion of the impeller 5, so that the flow field in the pump cavity 2 is more reasonable while the heating function of the heating assembly 7 is ensured, thereby realizing the suction and discharge of , and reducing the space occupied by the impeller 5 and the heating assembly 7, so that the volume of the pump cavity 2 is reduced;

fig. 9 is a schematic top view of the second wheel 5.3 of the impeller 5 of the present invention, wherein the outlet angle 5.11 is shown in the top view, which is convenient for those skilled in the art to understand the outlet angle 5.11 of the blade 5.8;

fig. 10 is a schematic diagram of an involute of a pump body 1 according to the present invention, which mainly shows an involute angle 1.3 in an involute design in a pump cavity 2, so that those skilled in the art can understand steps of using the involute on the pump body 1, it should be noted that fig. 10 is only schematic diagrams of , a water retaining rib 21 is further disposed on the inner wall of the pump cavity 2 near a liquid outlet 4 , and fig. 10 shows no expression, but does not represent a specific structure inside the pump cavity 2, as shown in fig. 10;

fig. 11 is a schematic diagram of the structure of the pump body 1 of the present invention, which mainly shows the technical solution of setting the second pressure switch at the liquid outlet 4, and it should be noted that fig. 11 sets the pressure switch 8.1 and the second pressure switch 8.2 in the same fig. 11, but does not represent that when the pressure switch 8.1 or the second pressure switch 8.2 is set, the second pressure switch 8.2 or the pressure switch 8.1 is needed at the same time for , and when some pressure switches are removed, this scheme is still feasible, and only the plug body or other liquid leakage measures are needed to plug the mounting opening;

fig. 12 is a second schematic diagram of the structure of the pump body 1 of the present invention, which mainly shows the technical scheme of providing the temperature switch 12 outside the pump body 1, and it should be noted that the technical scheme of the temperature switch 12 in fig. 12 may also include the technical scheme of providing the th pressure switch 8.1 and/or the second pressure switch 8.2, and when the temperature switch 12 is removed, the installation opening may be plugged by the plug body or other liquid leakage measures;

fig. 13 is the utility model discloses pump body 1 structure third sketch map, the main show is close to the manger plate muscle 21 that liquid outlet 4 departments set up at the 2 inner walls of pump chamber, be close to liquid outlet 4 departments in pump chamber 2 inside, also be exactly the position of drain pipe 10, sections manger plate muscle 21 have more been gone out in pump chamber 2's inside, the drain pipe 10 department at the 2 inner walls of pump chamber increases the manger plate muscle 21 that the extension line that gradually bursts at the seams formed, can effectively increase the effect of impeller 5 to the power of liquid, and the increase action time, increase water pressure.

The technical solution described above is applied to the specific embodiment as follows.

Example

As shown in fig. 1 to 13, the pump of kinds of washing devices according to this embodiment includes a pump body 1, a pump cavity 2 for containing liquid is provided in the pump body 1, a liquid inlet 3 and a liquid outlet 4 are provided on the pump body 1, the pump cavity 2 is provided with an impeller 5 connected to a motor 6 through a rotating shaft, the pump further includes a heating assembly 7 extending from the outside of the pump body 1 into the pump cavity 2 for heating the liquid in the pump cavity 2, a pressure switch 8.1 is provided on the pump body 1 and connected to the heating assembly 7, the impeller 5 divides the pump cavity 2 into a -th chamber 2.1 close to the liquid inlet 3 and a second chamber 2.2 far from the liquid inlet 3, and the heating assembly 7 is provided in the second chamber 2.2, and flows through the impeller 5 and the heating assembly 7 in sequence after the liquid flows into the pump cavity 2 through the liquid inlet 3, and flows out of the liquid outlet 4.

Example two

As shown in fig. 1 to 13, this embodiment is defined by step of the above embodiment , the projection of the liquid outlet 4 in the pump cavity 2 of the pump of the washing apparatus at least covers the impeller 5 and a portion of the heating assembly 7, and the arrangement of the impeller 5 and the heating assembly 7 is covered, so that the deposited liquid in the second chamber 2.2 is effectively circulated, and the poor circulation of the flow field caused by excessive deposition of the liquid in the second chamber 2.2 is avoided, thereby affecting the use of the pump body 1.

EXAMPLE III

As shown in fig. 4 and 5, in the present embodiment, as defined in step of the above embodiment or the second embodiment, the heating assembly 7 of the pump of washing apparatuses in the present embodiment includes a heating pipe 7.1, and a fuse and a heating wire disposed inside the heating pipe 7.1, and a heating unit 7.4, a second heating unit 7.5, and a third heating unit 7.6, which are sequentially disposed and are matched with a nut 7.3 through a bolt 7.2, so as to connect the heating pipe 7.1 with the pump body 1, and redefine a connection manner of the heating assembly 7 with the pump body 1, so that the heating assembly 7 is subjected to clamping force inside and outside the pump body 1, thereby improving sealing performance of the apparatus, and also improving disassembly, maintenance, repair, maintenance, and replacement of the heating assembly 7 and user experience.

, the heating tube 7.1 includes an arc section 7.1.1, a straight line section 7.1.2 and a second straight line section 7.1.3, a straight line section 7.1.2 is connected with the end of the arc section 7.1.1, the second straight line section 7.1.3 is connected with the other end of the arc section, fuses are arranged in at least of the straight line sections 7.1.2 and the second straight line section 7.1.3 and are far away from the arc section 7.1.1, the heating tube 7.1 extends into the second chamber 2.2 in the pump chamber 2 from the side part of the pump body 1, and the arc part surrounds the impeller 5 and is spaced from the impeller 5.

Example four

As shown in fig. 4 and 5, this embodiment is further defined by of the embodiment described in any one of through , and the pump of the washing apparatuses of this embodiment is characterized in that the arc-shaped section 7.1.1, the th straight-line section 7.1.2 and the second straight-line section 7.1.3 of the heating pipe 7.1 are located in planes to form heating planes for heating the liquid flowing through, so that the thermal stress coupling is more uniform on the heating pipe 7.1, the structure of the heating pipe 7.1 is more compact, and the situation of short service life of the heating assembly 7 or safety accident caused by local stress concentration is avoided.

EXAMPLE five

As shown in fig. 4 and 5, the present embodiment is defined by step of the embodiments to , the pump of the washing apparatus of 1 is characterized in that the 2 heating unit 7.4 is disposed in the pump cavity 2, the 3 straight line segment 7.1.2, the second straight line segment 7.1.3 and the bolt 7.2 are extended from the inside of the pump cavity 2 to the outside through the th through hole set 7.7 of the th heating unit 7.4, the th through hole set 7.7 is a through hole for positioning the 7 straight line segment 7.1.2 and the second straight line segment 7.1.3 of the heating pipe 7.1 and the bolt 7.2, which may be of the same size as 398 and may be of different sizes, which are distinguished from other heating units, therefore, the heating unit 7.4 is referred to as the th through hole set 7.7.7 in fig. 48 as fig. 7.4, in addition, the heating unit 7.6864 is further provided with the third through hole set in the sensing switch 7.8, which is used for sensing the liquid level pressure in the pump cavity 7.7 and sensing switch 7.2, which is set in fig. 7.8, which is sensed by sensing the liquid level sensing switch 7 in fig. 7.8, and sensing the liquid level sensing switch 7.2, which is set in fig. 7.8 in fig. 7, and the liquid level sensing the liquid level sensing switch 7.8 in.

EXAMPLE six

As shown in fig. 4 and 5, this embodiment is defined by a step of the embodiments through , in which the -th heating unit 7.4 of the pump of the washing apparatus forms enclosures or housings or glands to seal the second heating unit 7.5 in the pump cavity 2, the -th heating unit 7.4 prevents the second heating unit 7.5 from being heated and deformed in the installation direction of the bolt 7.2, and the step makes the -th heating unit 7.4 harder than the second heating unit 7.5.

EXAMPLE seven

As shown in fig. 4 and 5, in this embodiment, defined by step of the embodiments to , in the pump of the washing apparatus described in this embodiment, the second heating unit 7.5 is matched with the mounting groove 20 and the third heating unit 7.6 on the pump body 1, and extends into the pump cavity 2 from the outside to the inside of the pump body 1, and under the action of the th heating unit 7.4, the sealing of the pump cavity 2 is realized, after passing through the th straight line section 7.1.2, the second straight line section 7.1.3 and the bolt 7.2 through the th heating unit 7.4, the second heating unit 7.5 passes through the second through hole group 7.9 corresponding to the th through hole group 7.7, the second heating unit 7.5 is further provided with the fixing seat 7.10 matched with the pressure switch 8.1 of the second , the fixing seat 7.10 corresponds to the sensing hole 7.8, the second pressure switch 8.1 realizes the fixing seat 7.10 and the fixing assembly 7.1, the fixing seat 7.5 realizes the hollow fixing through the fixing seat 7.9, and the fixing structure of the fixing seat 7.5, and the fixing protrusion shown in fig. 5.

Example eight

As shown in fig. 4 and 5, the present embodiment is further defined by in the embodiments to , and the fixing seat 7.10 of the pump of the washing apparatuses in the present embodiment is a column structure having elasticity or having threads or buckles inside.

Example nine

As shown in fig. 4 and 5, in this embodiment, as a further limitation of the embodiments to , in the pump of the washing apparatus of , the third heating unit 7.6 of the pump cooperates with the mounting groove 20 on the pump body 1, and presses the second heating unit 7.5 against the mounting groove 20 of the pump body 1 from the outside to the inside of the pump body 1, so as to seal the second heating unit 7.5, the th straight line segment 7.1.2, the second straight line segment 7.1.3 and the bolt 7.2 pass through the third through hole group 7.11 which is arranged on the third heating unit 7.6 and corresponds to the th through hole group 7.7 and the second through hole group 7.9, the third heating unit 7.6 is further provided with a fixing hole 7.15 which cooperates with the fixing seat 7.10 of the second heating unit 7.5, and the fixing hole 7.15 is mainly arranged so that the pressure switch 8.1 passes through the third heating unit 7.6.

Example ten

As shown in fig. 4 and 5, the present embodiment is further limited to of the embodiments through , and the pump of the washing apparatus of the present embodiment forms installation planes by matching the th heating unit 7.4, the second heating unit 7.5 and the third heating unit 7.6 with the installation groove 20 provided on the pump body 1.

, after the pressure switch 8.1 is connected with the heating component 7, sensing planes are formed inside the pump cavity 2, which sequentially pass through the sensing hole 7.8, the fixing seat 7.10 and the fixing hole 7.15 and sense the liquid level in the pump cavity 2.

Example ten

As shown in fig. 4 and 5, in this embodiment, as a further limitation of the embodiments of through , in the pump of the washing apparatuses of this embodiment, the sensing plane of the pressure switch 8.1 sensing the liquid level in the pump cavity 2 is not lower than the heating plane of the heating component 7 heating the liquid in the pump cavity 2, and/or the installation plane formed by the heating component 7 and the installation groove 20 in a matching manner, and the sensing plane and the heating plane of the pressure switch, and/or the installation plane are arranged in the same plane, which effectively avoids the occurrence of dry burning of the heating component 7, and the pressure switch in the same sensing plane is more sensitive to the liquid in the pump cavity 2, improves the working efficiency of the pump body 1, and also avoids the waste of energy.

Example twelve

As shown in fig. 4 and 5, the present embodiment is further defined by steps from the above-mentioned embodiment to the embodiment of the ten or , and the pump of the kinds of washing devices of the present embodiment has the sensing plane coplanar with the heating plane and the installation plane.

EXAMPLE thirteen

As shown in fig. 1 to 13, the present embodiment is defined by steps of the embodiments to , and the pump of the washing device in this embodiment includes a pump body 1, the pump body 1 forms a pump cavity 2 containing liquid with a second pump shell 1.2 through a buckled first pump shell 1.1, the pump body 1 is provided with a liquid inlet 3 and a liquid outlet 4 communicated with the pump cavity 2, an impeller 5 connected with a motor 6 is arranged in the pump cavity 2, the pump further includes a heating assembly 7 extending from the outside of the pump body 1 into the pump cavity 2 and heating the liquid in the pump cavity 2, the impeller 5 divides the pump cavity 2 into a chamber 2.1 close to the liquid inlet 3 and a second chamber 2.2 far from the liquid inlet 3, the heating assembly 7 is arranged in the second chamber 2.2, and a circulation hole 5.1 arranged on the body of the impeller 5 and making the liquid in the second chamber 2.2 flow back to the impeller 5 and flow out from the liquid outlet 4.

Example fourteen

As shown in fig. 7 to 10, in the present embodiment, as defined in step of the embodiments to , in the pump of the washing apparatus, the impeller 5 of the pump of the washing apparatus includes a -th impeller 5.2 adapted to the shape of a -th pump housing 1.1 and a second impeller 5.3 provided with blades 5.8, the -th impeller 5.2 is provided with a water inlet 5.4 corresponding to the liquid inlet 3, the second impeller 5.3 is provided with at least circulation holes 5.1 between the two blades 5.8, a liquid outlet cavity 5.5 is formed between the -th impeller 5.2 and the second impeller 5.3, and the liquid flow area in the pump cavity 2 is re-planned by redefining the structure of the impeller 5, so that the liquid flow rate in the pump cavity 2 is more uniform, and the impact on the cavity wall due to excessive corners is avoided.

Example fifteen

As shown in fig. 7 to 10, in the present embodiment, as defined in step of the embodiments to , in the pump of the washing apparatus according to the present embodiment, the liquid flows into the impeller 5 through the liquid inlet 3, forms a flow along with the blades 5.8, flows through the liquid outlet chamber 5.5, flows through the th water path 5.6 from the liquid outlet 4, flows through the liquid outlet chamber 5.5, enters the second chamber 2.2, and flows back from the circulation hole 5.1 provided on the second impeller 5.3 to the liquid outlet chamber 5.5, and finally flows back to the th water path 5.6 to the second water path 5.7 from the liquid outlet 4, and at the same time, by providing the second water path 5.7 from the circulation hole 5.1 at the lower portion of the impeller 5 to the inside of the impeller 5 in the structure of the impeller 5, the heating function of the heating assembly 7 to the liquid is ensured, the flow area in the pump chamber 2 is more reasonable, the liquid suction and the is realized, and the space occupied by the impeller 7 and the pump body is reduced.

Example sixteen

As shown in fig. 7 to 10, in the present embodiment, as a further step of the embodiment of the above embodiments to , the diameter of the circulation hole 5.1 of the pump of the washing apparatuses is greater than or equal to 5% of the diameter of the impeller 5.

Example seventeen

As shown in fig. 7 to 10, in this embodiment, defined in steps to of the embodiments , the liquid inlet 3 of the pump of washing apparatus of this embodiment includes a flow guiding wall 9 extending from section into the pump cavity 2, the flow guiding wall 9 extends into the water inlet 5.4 provided on the wheel 5.2 of 3 to guide the liquid flowing through the liquid inlet 3 into the liquid outlet cavity 5.5 of the impeller 5, specifically, the gap between the pump casing 1.1 of 4 and forms the chamber 2.1, and the flow guiding wall 9 extends into the water inlet 5.4 on the wheel 5.2 of , so that no liquid flows into the chamber 2.1 when the liquid flows into the impeller 5, and then the liquid flowing into the chamber 2.1 is prevented from flowing into the chamber 2.1 due to the rotation of the impeller 5, and therefore, the effect of the chamber 2.1 at the working position of the impeller 1 is small, and the effect of reducing the size of the impeller 2.1 is achieved by reducing the size of the gap between the pump casing 2.1, so that the impeller 5 is suitable for reducing the volume of the pump body 895, and the impeller 5 is also reducing the size of the pump body.

EXAMPLE eighteen

As shown in fig. 7 to 10, in the pump of the 1 washing apparatus according to the embodiment defined in steps 0 of the aforementioned embodiments to , at least protrusions 5.9 are spaced from the surface of the blade 5.8 facing the 2.2-th wheel body 5.2 3, corresponding holes 5.10 are formed on the -th wheel body 5.2 corresponding to the protrusions 5.9 formed on the blade 5.8, when the -th wheel body 5.2 is fastened to the second wheel body 5.3, the protrusions 5.9 pass through the holes 5.10, after the melting process, the -th wheel body 5.2 and the second wheel body 5.3 form a body structure, and the connection relationship between the -th wheel body 5.2 and the second wheel body 5.3 of the impeller 5 is redefined so that the protrusions .2 and the second wheel body 5.3 are positioned through the holes 5.9 and 5.10 and then fused into a body.

Example nineteen

As shown in fig. 7 to 10, in the pump of the washing apparatus according to the present embodiment, the vanes 5.8 of the pump are volute vanes which are arranged on the second wheel body 5.3 and extend from the rotation center of the impeller 5 to the edge of the impeller 5, and the width of the vanes 5.8 gradually decreases with the extension of the vanes 5 to the edge of the impeller 5, as defined in step of the above embodiments to .

Example twenty

As shown in fig. 7 to 10, in the present embodiment, as defined in step of the embodiments through , the number of the blades 5.8 of the pump of the washing apparatus is prime, the outlet angle 5.11 formed by the extension line of the blade 5.8 and the tangent line of the rotation of the blade 5.8 is between 30 ° and 50 °, and the performance of the overall structure of the impeller 5 and the effect of guiding the flow to the flow field are improved by using the arc-shaped blade 5.8 and the specific outlet angle 5.11.

Example twenty

As shown in fig. 7 to 10, in this embodiment, the pump of washing apparatuses is limited in step of the above embodiments to twenty-any , in the pump of this embodiment, the inner wall of the pump body 1 is designed to be involute, water-retaining ribs 21 are formed at the position, close to the liquid outlet 4, of the inner wall of the pump cavity 2 by extending the involute, and the water-retaining rib 21 formed by extending the involute is added at the position, close to the liquid outlet 4, of the liquid outlet pipe 10 of the inner wall of the pump cavity 2, so that the force of the impeller 5 on the liquid can be effectively increased, the acting time is prolonged, and the water pressure is increased.

Example twenty two

As shown in fig. 7 to 10, in the present embodiment, the pump of kinds of washing devices is defined in the step of the embodiments to twenty or , and a ratio of an area of the liquid outlet 4 after being shielded by the water blocking rib 21 to an area of the liquid outlet 4 is less than or equal to 0.67.

Example twenty three

As shown in fig. 7-10, the present embodiment is further from the above-mentioned embodiment to the twenty-two embodiment , and the pump of the washing apparatuses of the present embodiment has an involute angle 1.3 of 3 ° to 7 °.

Example twenty-four

As shown in fig. 7 to 10, in the present embodiment, as defined in step of the embodiments to , the ratio of the diameter of the impeller 5 to the diameter of the pump body 1 of the pump of washing apparatuses in this embodiment is between 0.75 and 0.85, and the pump body 1 is designed in an involute form, so that the reasonableness of the liquid flow area inside the pump body 1 is improved, and the performance and the service life of the structure of the pump body 1 are also improved.

Example twenty-five

As shown in fig. 1 to 13, the present embodiment is limited by step of the embodiments to twenty-four or , the pump of the washing device includes a pump body 1, a pump cavity 2 for accommodating liquid is disposed in the pump body 1, the pump body 1 is provided with a liquid inlet 3 and a liquid outlet 4 communicated with the pump cavity 2, an impeller 5 connected to a motor 6 is disposed in the pump cavity 2, the pump further includes a heating element 7 extending from the outside of the pump body 1 into the pump cavity 2 for heating the liquid in the pump cavity 2, a pressure sensing portion 8 disposed on the pump body 1 for sensing the liquid level in the pump cavity 2, the impeller 5 divides the pump cavity 2 into an -th cavity 2.1 close to the liquid inlet 3 and a second cavity 2.2 far from the liquid inlet 3, and the heating element 7 is disposed in the second cavity 2.2.

Example twenty-six

As shown in fig. 1 to 13, in this embodiment, as defined in step of the embodiments through , in the pump of the washing apparatus in this embodiment, the pressure sensing portion 8 includes a th pressure switch 8.1 disposed on the pump body 1 and connected to the heating component 7, a second pressure switch 8.2 disposed on the liquid outlet 4 of the pump body 1 and connected to the liquid outlet pipe 10, a pressure switch disposed at the liquid outlet pipe 10 of the pump body 1 for detecting the liquid flowing through the liquid outlet 4, and step ensures the heating function of the pump body 1, and at the same time, the pressure switch is directly connected to the liquid outlet pipe 10 to avoid the influence of the hot liquid flowing through the pressure switch, the liquid outlet pipe 10 is provided with a mounting seat 11 for fixing the second pressure switch 8.2, and the pressure sensing portion 8 senses the liquid level in the pump cavity 2 to form sensing planes.

Example twenty-seven

As shown in fig. 1 to 13, in the present embodiment, as a further of the embodiments through , in the pump of the washing apparatus of the present embodiment, the sensing plane of the pressure sensing portion 8 sensing the liquid level in the pump cavity 2 is not lower than the sensing plane, the heating plane of the heating element 7 heating the liquid in the pump cavity 2, and/or the installation plane formed by the heating element 7 and the installation groove 20 in cooperation, so that the occurrence of dry burning of the heating element 7 is effectively avoided.

Example twenty-eight

As shown in fig. 1 to 13, in this embodiment, as a further step of the embodiments through , in the pump of the washing apparatuses of this embodiment, the sensing plane and the heating plane of the pressure switch 8.1 sensing the liquid level in the pump cavity 2, and/or the installation plane are coplanar, and the pressure switch in the sensing plane is more sensitive to the liquid in the pump cavity 2, so that the working efficiency of the pump body 1 is improved, and the waste of energy is also avoided.

Example twenty-nine

As shown in fig. 1 to 13, the present embodiment is limited by step of the embodiments to , the pump of the washing device includes a pump body 1, a pump cavity 2 for accommodating liquid is disposed in the pump body 1, the pump body 1 is provided with a liquid inlet 3 and a liquid outlet 4 communicated with the pump cavity 2, an impeller 5 connected to a motor 6 is disposed in the pump cavity 2, the pump further includes a heating element 7 extending from the outside of the pump body 1 into the pump cavity 2 for heating the liquid in the pump cavity 2, the liquid outlet 4 disposed in the pump body 1 is provided with a second pressure switch 8.2 for inducing the liquid flowing through the liquid outlet 4, the impeller 5 divides the pump cavity 2 into a chamber 2.1 close to the liquid inlet 3 and a second chamber 2.2 far from the liquid inlet 3, and the heating element 7 is disposed in the second chamber 2.2.

Example thirty

As shown in fig. 1 to 13, in this embodiment, as defined in step of the embodiments through , in the pump of the washing apparatus in this embodiment, a liquid outlet 10 is disposed at the liquid outlet 4, a -th mounting seat 11 for fixing the second pressure switch 8.2 is disposed on the liquid outlet 10, the -th mounting seat 11 realizes fixing of the second pressure switch 8.2 by pressing, screwing, or clipping, a pressure switch is disposed at the liquid outlet 10 of the pump body 1, and liquid flowing through the liquid outlet 4 is detected, so that further ensures the heating function of the pump body 1, and meanwhile, the pressure switch is directly connected with the liquid outlet 10, so as to avoid the influence of hot liquid passing through the pressure switch.

Example thirty

As shown in fig. 1 to 13, in the present embodiment, as a further limitation of the embodiments of through , in the pump of the washing apparatus of the present embodiment, the sensing plane of the second pressure switch 8.2 sensing the liquid level in the pump cavity 2 is not lower than the heating plane of the heating component 7 heating the liquid in the pump cavity 2, and/or the mounting plane formed by the heating component 7 and the mounting groove 20 in a matching manner, effectively avoiding the dry burning of the heating component 7, and the pressure switch in the same sensing plane is more sensitive to the liquid in the pump cavity 2, thereby improving the working efficiency of the pump body 1 and avoiding the waste of energy.

Example thirty-two

As shown in fig. 1 to 13, the present embodiment is further defined by in embodiments to thirty or , and the heating plane and the installation plane of the pump of kinds of washing devices in the present embodiment are coplanar.

Example thirty-three

As shown in fig. 1 to 13, the present embodiment is defined by step of the embodiments to thirty-two , the pump of the washing device includes a pump body 1, a pump cavity 2 for accommodating liquid is disposed in the pump body 1, the pump body 1 is provided with a liquid inlet 3 and a liquid outlet 4 communicated with the pump cavity 2, an impeller 5 connected to a motor 6 is disposed in the pump cavity 2, the pump further includes a heating element 7 extending from the outside of the pump body 1 into the pump cavity 2 for heating the liquid in the pump cavity 2, a temperature switch 12 disposed on the pump body 1 for monitoring the temperature of the liquid in the pump cavity 2, the impeller 5 divides the pump cavity 2 into an -th cavity 2.1 close to the liquid inlet 3 and a second cavity 2.2 far from the liquid inlet 3, and the heating element 7 is disposed in the second cavity 2.2.

Example thirty-four

As shown in fig. 1 to 13, the present embodiment is further defined by of the embodiments to , wherein the pump body 1 of the washing apparatus of the present embodiment is provided with a second mounting seat 13 for fixing a temperature switch 12, the temperature switch 12 extends into the pump cavity 2 from the second mounting seat 13, and the mounting plane of the second mounting seat 13 is parallel to the heating plane of the heating assembly 7.

Example thirty-five

As shown in fig. 1 to 13, the present embodiment is further from the above embodiment to thirty-four embodiment , wherein the mounting plane of the second mounting seat 13 of the pump of washing apparatuses is coplanar with the heating plane of the heating assembly 7.

Example thirty-six

As shown in fig. 1 to 13, in the present embodiment, as defined in step of the embodiments to , the second mounting seat 13 of the pump of the washing apparatus in the present embodiment is pressed, screwed or clamped to fix the temperature switch 12, and the temperature switch 12 is disposed outside the pump body 1, so that the actual heating in the pump cavity 2 is multidimensional and diversified, and the temperature is monitored to avoid the dry burning problem.

Example thirty-seven

As shown in fig. 1 to 13, the heating device for washer pumps according to the present embodiment is defined by a step of the embodiments to , and includes a heating element 7 extending from the outside of the pump body 1 to the inside of the pump cavity 2 for heating the liquid in the pump cavity 2, the heating element 7 is connected to the pump body 1 through an installation groove 20 formed in the pump body 1, and an installation plane formed by connecting the heating element 7 to the pump body 1 through the installation groove 20 is parallel to a heating plane formed by heating the liquid in the pump cavity 2 of the pump body 1 by the heating element 7.

Example thirty-eight

As shown in fig. 1 to 13, in the present embodiment, as defined in step of the embodiments through , in the heating device of the washing pump of this embodiment, the heating element 7 of the washing pump includes a heating pipe 7.1, and a fuse and a heating wire disposed inside the heating pipe 7.1, and the heating unit 7.4, the second heating unit 7.5, and the third heating unit 7.6, which are sequentially disposed and are engaged with the nut 7.3 through the bolt 7.2, so as to connect the heating pipe 7.1 with the pump body 1, redefine the connection manner of the heating element 7 with the pump body 1, so that the heating element 7 is clamped inside and outside the pump body 1, thereby improving the sealing performance of the device, and also improving the disassembly, maintenance, repair, maintenance, and maintenance of the heating element 7 and the replacement of the pressure switch, and improving the user experience.

Example thirty-nine

As shown in fig. 1 to 13, the present embodiment is defined by step 0 of the above embodiments to thirty-eight , and the heating device of the washing pump of this embodiment 1 includes a heating pipe 7.1 including an arc section 7.1.1, a 2-th straight-line section 7.1.2 and a second straight-line section 7.1.3, a -th straight-line section 7.1.2 is connected to an end of the arc section 7.1.1, and a second straight-line section 7.1.3 is connected to another end of the arc section, a fuse is disposed in at least planes of the first -th straight-line section 7.1.2 and the second straight-line section 7.1.3 and away from the arc section 7.1.1, and an arc section 7.1.1, a -th straight-line section 7.1.2 and the second straight-line section 7.1.3 are located in planes together, so as to form heating planes through which liquid is heated, the heating pipe 7.1 is coupled, and the heating pipe is more compact, thereby avoiding stress concentration and the occurrence of the heating pipe is more uniform.

Example forty

As shown in fig. 1 to 13, in the present embodiment, as a further step of the embodiments to , in the heating device of the washing pump according to the present embodiment, the heating pipe 7.1 extends into the pump cavity 2 from the outside of the pump body 1, the heating pipe 7.1 is located on the other side of the impeller 5 relative to the liquid inlet 3 in the pump body 1, the arc portion surrounds the impeller 5 and is spaced from the impeller 5, the arrangement of the impeller 5 and the heating assembly 7 improves the flow area in the pump cavity 2, so that the flow rate is more uniform, the heating efficiency is higher, and the heating assembly 7 is disposed at the lower portion of the impeller 5, so that the heating efficiency is ensured, the additional occupation of the heating assembly 7 to the space of the pump body 1 is reduced, the heating assembly 7 is prevented from being impacted by the liquid entering the pump cavity 2, and the safety performance of the heating assembly 7 is improved.

Example forty

As shown in fig. 1 to 13, in the present embodiment, as defined by step 0 of the embodiments of to forty-arbitrary , in the heating device of the washing pump of 1 of the present embodiment, the 2-th heating unit 7.4 is disposed in the pump cavity 2, the -th straight line segment 7.1.2, the second straight line segment 7.1.3 and the bolt 7.2 penetrate from the inside of the pump cavity 2 to the outside through the -th through hole group 7.7 disposed on the -th heating unit 7.4, the -th heating unit 7.4 is further provided with a sensing hole 7.8, the sensing hole 7.8 is used for passing liquid, so as to sense the liquid level in the pump cavity 2, the -th heating unit 7.4 forms -shaped covers or housings or covers, so as to achieve the sealing of the second heating unit 7.5 in the pump cavity 2, the -th heating unit 7.4 prevents the second heating unit 7.5 from being heated, so as to generate deformation in the installation direction of the bolt 7.2, and the -shaped heating unit 7.4 has hardness greater than that of the second heating unit 7.

Example forty two

As shown in fig. 1 to 13, in this embodiment, as defined in step of any embodiment of embodiments to forty , in the heating device of the washing pump of this embodiment, the second heating unit 7.5 is matched with the mounting groove 20 and the third heating unit 7.6 on the pump body 1, and extends into the pump cavity 2 from the outer side to the inner side of the pump body 1, and under the action of the th heating unit 7.4, the pump cavity 2 is sealed, after passing through the heating unit 7.4, the straight-line segment 7.1.2, the second straight-line segment 7.1.3 and the bolt 7.2 pass through the heating unit 7.4, and pass through the second heating unit 7.5, the second through hole group 7.9 corresponding to the through hole group 7.7, the second heating unit 7.5 is further provided with a fixing seat 7.10 corresponding to the sensing hole 7.8, and the fixing seat 7.10 is used for fixing the second pressure switch 8.1 sensing the liquid level in the pump cavity 2, and the fixing seat 7.10 is a resilient cylinder or a snap-in which has a screw structure or a resilient band.

Example forty-three

As shown in fig. 1 to 13, in the present embodiment, as defined in step of the embodiment according to the above embodiments to , in the heating device of the washing pump according to the present embodiment, the third heating unit 7.6 is engaged with the mounting groove 20 on the pump body 1, and the second heating unit 7.5 is pressed against the mounting groove 20 of the pump body 1 from the outside to the inside of the pump body 1, so as to seal the second heating unit 7.5, the th straight line segment 7.1.2, the second straight line segment 7.1.3 and the bolt 7.2 pass through the third through hole group 7.11 provided on the third heating unit 7.6 and corresponding to the th through hole group 7.7 and the second through hole group 7.9, and the third heating unit 7.6 is further provided with the fixing hole 7.15 engaged with the fixing seat 7.10 of the second heating unit 7.5.

, the heating unit 7.4, the second heating unit 7.5 and the third heating unit 7.6 form installation planes by cooperating with the installation groove 20 provided on the pump body 1.

Example forty-four

As shown in fig. 1 to 13, the present embodiment is further defined by of the embodiments to , in the heating device of the washing pump of this embodiment, the heating element 7 of the heating device of is abutted with the positioning rib 19 arranged on the th pump casing 1.1 through the pressing groove 7.14 arranged on the third heating unit 7.6, so as to realize the positioning of the heating element 7, the heating element 7 is abutted with the th claw 7.12 arranged on the th pump casing 1.1 through the th clamping groove 7.13 arranged on both sides of the third heating unit 7.6, so as to realize the fixing of the heating element 7, specifically, the heating element 7 is aligned with the mounting groove 20 through the positioning rib 19 and the pressing groove 7.14, then the heating element 7 is inserted into the mounting groove 20 of the pump body 1, and then the th clamping groove 7.12 and the th clamping groove 7.13 are clamped through the improvement of the structure of the heating element 7, the redefinition of the heating element 7 and the connection mode of the heating element 7, so that the heating element is subjected to the maintenance, the maintenance of the pump body 7, the sealing switch assembly, and the maintenance of the pump body 1 are improved, and the maintenance of the pump body is also subjected to the maintenance of the heating element, the maintenance device, the.

Example forty-five

As shown in fig. 1 to 13, in the present embodiment, as defined in step of the embodiments through , in the heating device of the washing pump according to the present embodiment, the installation plane formed by connecting the heating component 7 and the pump body 1 through the installation groove 20 is coplanar with the heating plane formed by heating the liquid in the pump cavity 2 of the pump body 1 by the heating component 7, so that occurrence of dry burning of the heating component 7 is effectively avoided, and the pressure switch in the same plane as the plane is more sensitive to the liquid in the pump cavity 2, so that the working efficiency of the pump body 1 is improved, and waste of energy is also avoided.

Example forty-six

As shown in fig. 1 to 13, in the present embodiment, defined in step of the embodiment to , in the heating device of the washing pump according to the present embodiment, the heating element 7 extends into the pump cavity 2 from the radial direction of the pump body 1, and extends into the pump cavity from the radial direction of the pump body, so that a planar angle is prevented from being formed between the heating element and the impeller, so that noise is generated when the liquid circulates in the pump cavity, and at the same time, trickle flow is generated under the action of the angle, so as to impact the wall of the pump cavity, and the service life of the pump body is affected after long-term use.

However, it is understood that embodiments of the invention may be practiced without these specific details, and that examples well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together by in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of the same, however, the method of disclosure is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim.

All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least of such features and/or processes or elements are mutually exclusive.

Furthermore, those skilled in the art will appreciate that although some of the embodiments described herein include some features included in other embodiments, not others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.

The invention is not to be considered as limited to the specific embodiments described herein, but to one skilled in the art, and the claims are to be accorded the full scope consistent with the language defined herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims (10)

1. The pump of kinds of washing devices, comprising

   A pump body (1);

   the pump body (1) forms a pump cavity (2) for containing liquid through a buckled pump shell (1.1) and a second pump shell (1.2);

   a liquid inlet (3) and a liquid outlet (4) which are communicated with the pump cavity (2) are arranged on the pump body (1);

   an impeller (5) connected with a motor (6) is arranged in the pump cavity (2);

   the method is characterized in that: also comprises

   A second pressure switch (8.2) arranged at the liquid outlet (4) of the pump body (1) and used for sensing the liquid flowing through the liquid outlet (4);

   the heating component (7) is arranged from the outside of the pump body (1) to extend into the pump cavity (2) and is used for heating the liquid in the pump cavity (2);

   the impeller (5) divides the pump cavity (2) into an -th chamber (2.1) close to the liquid inlet (3) and a second chamber (2.2) far away from the liquid inlet (3);

   the heating component (7) is arranged in the second chamber (2.2);

   a circulating hole (5.1) which is arranged on the body of the impeller (5) and enables the liquid in the second chamber (2.2) to flow back to the impeller (5) and flow out from the liquid outlet (4);

   a liquid outlet pipe (10) is arranged at the liquid outlet (4);

   an -th mounting seat (11) for fixing the second pressure switch (8.2) is arranged on the liquid outlet pipe (10).
2. 2. The washer pump as set forth in claim 1, wherein the pump is a pump for a washer

   Liquid flows into the pump cavity (2) through the liquid inlet (3), sequentially flows through the impeller (5) and the heating assembly (7), and then flows out of the liquid outlet (4);

   the projection of the liquid outlet (4) in the pump cavity (2) at least covers the impeller (5) and part of the heating assembly (7).
3. 3. The washer pump as set forth in claim 1, wherein the pump is a pump for a washer

   The impeller (5) comprises a wheel body (5.2) which is matched with the pump shell (1.1) in shape of the and a second wheel body (5.3) which is provided with blades (5.8);

   the th wheel body (5.2) is provided with a water inlet (5.4) corresponding to the liquid inlet (3);

   at least circulating holes (5.1) are arranged between the two blades (5.8) on the second wheel body (5.3);

   a liquid outlet cavity (5.5) is formed between the wheel body (5.2) and the second wheel body (5.3).
4. 4. Pump for washing device according to claim 3, characterized in that the liquid flows into the impeller (5) via the liquid inlet (3) forming a flow guide with the blades (5.8),

   a th water path (5.6) which flows through the liquid outlet cavity (5.5) and flows out of the liquid outlet (4);

   flows through the liquid outlet cavity (5.5), enters the second chamber (2.2), flows back to the liquid outlet cavity (5.5) from a circulating hole (5.1) arranged on the second wheel body (5.3), and finally flows together to the th water channel (5.6) and flows out of the second water channel (5.7) of the liquid outlet (4);

   the aperture of the circulation hole (5.1) is more than or equal to 5 percent of the diameter of the impeller (5).
5. 5. The washer pump as set forth in claim 3, wherein the pump is a pump for a washer

   The liquid inlet (3) comprises a section of a drainage wall (9) extending into the pump cavity (2);

   the drainage arm extends into a water inlet (5.4) arranged on the th wheel body (5.2) and introduces the liquid flowing through the liquid inlet (3) into a liquid outlet cavity (5.5) of the impeller (5).
6. 6. The washer pump as set forth in claim 3, wherein the pump is a pump for a washer

   At least bulges (5.9) are arranged on the surface of the blade (5.8) facing the th wheel body (5.2) at intervals;

   a corresponding small hole (5.10) is arranged on the wheel body (5.2) corresponding to the bulge (5.9) arranged on the blade (5.8);

   when the th wheel body (5.2) is buckled with the second wheel body (5.3), the bulge (5.9) passes through the small hole (5.10), and after the melting treatment, the th wheel body (5.2) and the second wheel body (5.3) form a body structure;

   the blades (5.8) are volute blades which are arranged on the second wheel body (5.3) and extend from the rotating center of the impeller (5) to the edge of the impeller (5);

   the width of the blade (5.8) is gradually reduced along with the extension arrangement towards the edge of the impeller (5);

   the number of the blades (5.8) is prime;

   the outlet angle (5.11) formed by the extension line of the blade (5.8) and the tangent of the rotation of the blade (5.8) is between 30 degrees and 50 degrees;

   the inner wall of the pump body (1) adopts an involute design, and water retaining ribs (21) are formed on the inner wall of the pump cavity (2) close to the liquid outlet through the extension of the involute;

   the ratio of the area of the liquid outlet (4) after being blocked by the water retaining rib (21) to the area of the liquid outlet (4) is less than or equal to 0.67;

   the inner wall of the pump body (1) adopts an involute design, and the involute angle (1.3) is between 3 and 7 degrees;

   the ratio of the diameter of the impeller (5) to the diameter of the pump body (1) is between 0.75 and 0.85.
7. 7. Pump for washing device according to claim 1, wherein the second pressure switch (8.2) senses the liquid level in the pump chamber (2) to form sensing planes.
8. 8. The washer pump as set forth in claim 7, wherein the pump is a pump for a washer

   The heating component (7) extends into the pump cavity (2) from the radial direction of the pump body (1);

   the heating assembly (7) comprises

   The heating pipe (7.1) and a fuse and a heating wire which are arranged inside the heating pipe (7.1);

   the th heating unit (7.4), the second heating unit (7.5) and the third heating unit (7.6) are sequentially arranged and matched with the nut (7.3) through the penetrating bolt (7.2) to realize the connection of the heating pipe (7.1) and the pump body (1);

   the heating pipe (7.1) comprises an arc-shaped section (7.1.1), an -th straight line section (7.1.2) and a second straight line section (7.1.3);

   the th straight line segment (7.1.2) is connected with the end of the arc segment (7.1.1), and the second straight line segment (7.1.3) is connected with the other end of the arc segment;

   the fuse is arranged in at least of the th straight line segment (7.1.2) and the second straight line segment (7.1.3) and far away from the arc-shaped segment (7.1.1);

   the heating pipe (7.1) extends into the second chamber (2.2) in the pump cavity (2) from the side part of the pump body (1);

   the arc-shaped part surrounds the impeller (5) and is spaced from the impeller (5);

   the arc-shaped section (7.1.1), the th straight line section (7.1.2) and the second straight line section (7.1.3) of the heating pipe (7.1) are in the same planes, so that heating planes for heating liquid flowing through are formed.
9. 9. The washer pump as set forth in claim 8, wherein the pump is a pump for a washer

   The th heating unit (7.4) forms covers or shells or glands and extends outwards from the inside of the pump cavity (2) to realize the sealing of the second heating unit (7.5) in the pump cavity (2);

   the th heating unit (7.4) prevents the second heating unit (7.5) from being heated and deformed in the installation direction of the bolt (7.2);

   the second heating unit (7.5) is matched with the mounting groove (20) on the pump body (1) and the third heating unit (7.6), extends into the pump cavity (2) from the outer side to the inner side of the pump body (1), and realizes the sealing of the pump cavity (2) under the action of the th heating unit (7.4);

   the third heating unit (7.6) is matched with the mounting groove (20) on the pump body (1), the second heating unit (7.5) is pressed against the mounting groove (20) of the pump body (1) from the outer side of the pump body (1) to the inner side, and then the second heating unit (7.5) is sealed;

   the th heating unit (7.4), the second heating unit (7.5) and the third heating unit (7.6) are matched with the mounting groove (20) arranged on the pump body (1) to form mounting planes.
10. 10. The washer pump as set forth in claim 9, wherein the pump is a pump for a washer

    The induction plane of the second pressure switch (8.2) for inducing the liquid level in the pump cavity (2) is not lower than the induction plane, the heating component (7) heats the liquid in the pump cavity (2), and/or the mounting plane formed by the matching of the heating component (7) and the mounting groove (20);

    the heating plane and the mounting plane are coplanar.

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