CN111706520A - Shell assembly of electric pump, electric pump and dish washing machine - Google Patents
Shell assembly of electric pump, electric pump and dish washing machine Download PDFInfo
- Publication number
- CN111706520A CN111706520A CN202010564164.2A CN202010564164A CN111706520A CN 111706520 A CN111706520 A CN 111706520A CN 202010564164 A CN202010564164 A CN 202010564164A CN 111706520 A CN111706520 A CN 111706520A
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- China
- Prior art keywords
- pump
- protector
- electric pump
- heating pipe
- housing assembly
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- 238000004851 dishwashing Methods 0.000 title abstract description 4
- 230000001012 protector Effects 0.000 claims abstract description 104
- 238000010438 heat treatment Methods 0.000 claims abstract description 90
- 238000009434 installation Methods 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 description 32
- 229920003023 plastic Polymers 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 238000005485 electric heating Methods 0.000 description 15
- 230000008901 benefit Effects 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000010935 stainless steel Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4285—Water-heater arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a shell assembly of an electric pump, the electric pump and a dish washing machine, wherein the shell assembly of the electric pump comprises: a pump housing; the heating pipe is at least partially arranged in the pump shell and comprises a heating circuit; and the protector is arranged on the outer surface of the pump shell and is connected with the heating circuit of the heating pipe in series. The shell assembly of the electric pump comprises a pump shell, a heating pipe and a protector, wherein the protector is directly arranged on the pump shell, and further the arrangement of a heat conducting sheet and a pump cover is cancelled, so that the shell assembly of the electric pump is simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of electric pumps, in particular to a shell assembly of an electric pump, the electric pump and a dish washing machine.
Background
In the related art, a heating assembly integrated with an electric pump, a housing assembly 100 ' of the electric pump includes a plastic pump housing 110 ', a stainless steel pump cover 120 ' assembled to an end of the plastic pump housing 110 ', an electric heating tube 180 ' fixed to a side of the stainless steel pump cover 120 ' and located outside the pump housing, an aluminum heat conducting plate 130 ' welded to the electric heating tube 180 ' and the stainless steel pump housing 110 ' as a whole, a connector 140 ', a hard metal wire 152 ' for electrical conduction, a metal spring plate 154 ', and a metal cover plate 156 '. The protector 170 ' senses the temperature of water by sensing the temperature of the aluminum heat conductive plate 130 ', the fuse 160 ' senses the temperature of the electric induction tube 180 ' by sensing the temperature of the aluminum heat conductive plate 130 ', the metal cover plate 156 ' is fastened and riveted to the stainless steel pump cover 120 ', and the metal cover plate 156 ' is fastened and riveted to compress the connector 140 ' by compressing the metal elastic sheet 154 ', and then the protector 170 ' and the fuse 160 ' are compressed to the aluminum heat conductive plate 130 '.
However, the scheme has the following defects:
1. the structure is complex, and the cost of the heating assembly is high;
2. the aluminum heat conducting fin and the electric heating tube are welded into a whole, the influence of the temperature of the electric heating tube is large, and the protector senses inaccurate water temperature.
Disclosure of Invention
The present invention is directed to overcoming at least one of the problems set forth in the prior art.
To this end, a first aspect embodiment of the invention proposes a housing assembly for an electric pump.
In a second aspect, embodiments of the present invention provide an electric pump.
A third aspect of the present invention provides a dishwasher.
In view of the above, according to a first aspect of the present invention, there is provided an electric pump housing assembly, comprising: a pump housing; the heating pipe is at least partially arranged in the pump shell and comprises a heating circuit; and the protector is arranged on the outer surface of the pump shell and is connected with the heating circuit of the heating pipe in series.
The shell assembly of the electric pump comprises a pump shell, a heating pipe and a protector, wherein the protector is directly arranged on the pump shell, and further the arrangement of a heat conducting sheet and a pump cover is cancelled, so that the shell assembly of the electric pump is simple in structure and low in cost.
In addition, the housing assembly of the electric pump according to the above embodiment of the present invention may also have the following additional technical features:
on the basis of the above technical solution, further, the pump casing includes: the heating pipe comprises a main body, a heating pipe and a heating pipe, wherein the main body is provided with a first opening, and the heating pipe penetrates through the first opening; the installation department locates the main part, and the installation department lies in same one side of main part with first opening, and the installation department is located to the protector.
In this aspect, the pump casing includes: main part and installation department, the installation department sets up the surface at the main part, be provided with first opening in the main part, first opening and installation department are located the same one side of main part, and then because the protector sets up at the installation department, the heating pipe passes first opening, make the heating pipe be located the outer part of pump case and protector be located same one side, and then to the casing subassembly of charge pump wholly, the volume of the casing subassembly of charge pump has been reduced, and, the distance between heating pipe and the protector has been drawn close, the input of wire between the heating pipe that reduces and the protector, and the production cost is reduced.
On the basis of any one of the above technical solutions, further, the mounting portion includes: the seat body is arranged on the main body; the first lock catch is arranged on the seat body; a cover body; the second lock catch is matched with the first lock catch, the second lock catch is arranged on the cover body, and the cover body is detachably arranged on the base body through the second lock catch and the first lock catch; wherein, the lid can form the installation cavity with the pedestal, and the installation cavity is located to the protector.
In this technical scheme, the installation department includes the pedestal, the lid, first hasp and second hasp, wherein, first hasp is located the pedestal, the lid is located to the second hasp, first hasp and second hasp looks adaptation, and then pedestal and the first hasp of lid accessible and second hasp lock or open, when pedestal and lid lock, form an installation cavity, the protector sets up in the installation cavity, this mounting means, simple easy operation, and the installation cavity encloses the surface of establishing at the pump case with the protector, external environment's interference has been reduced, more do benefit to the temperature in the protector response pump case, further promote the accuracy of protector temperature sensing.
On the basis of any one of the above technical solutions, further, the method further includes: the elastic piece is arranged in the mounting cavity and is positioned between the cover body and the protector.
In this technical scheme, the casing subassembly of charge pump still includes the elastic component, and the elastic component setting is between lid and protector, and then behind the lid knot at the pedestal, the elastic component supports the protector pressure the surface at the pump case, and then more does benefit to the response of protector to the temperature in the pump case, further promotes the accuracy of protector temperature sensing.
On the basis of any one of the above technical solutions, further, the pump casing further includes: the thin-wall part is arranged on the main body, and the protector is arranged on the thin-wall part; or the pump housing further comprises: the main body of the temperature sensing plate is provided with a second opening, the second opening is located in the installation cavity, the temperature sensing plate is located at the second opening, and the protector is abutted to the temperature sensing plate.
In the technical scheme, the wall thickness of the connecting position of the pump shell and the protector is thinned, so that the temperature sensing accuracy of the protector is improved; still be provided with the second opening in the main part, the second opening is located the installation intracavity, and the pump case is still including feeling the temperature board, sets up at the second opening part, and the protector supports locates the temperature board, and in order to promote the security, the main part of pump case adopts the lower material of heat transfer nature usually, and then sets up the temperature board, can further, promotes the accuracy of protector to the inside temperature sensing of pump case.
On the basis of any one of the above technical solutions, further, in the case that the pump casing includes a temperature sensing plate: the temperature sensing plate is embedded into the main body; or the housing assembly of the electric pump further comprising: the second opening and the peripheral wall of the installation cavity are provided with bulges, the temperature sensing plate is arranged in the installation cavity, and the sealing element is arranged between the bulges and the temperature sensing plate.
In this technical scheme, temperature sensing board and main part can adopt integrative injection molding process, and this structure has reduced installation steps, has promoted production speed, perhaps, forms the round arch between second opening and installation cavity inside wall, sets up the sealing member on the arch, and the temperature sensing board receives the pressure of protector and lid, compresses tightly the sealing member in the installation cavity, and then realizes sealedly, and this structure is convenient for the maintenance of temperature sensing board to be changed.
On the basis of any one of the above technical solutions, further, the method further includes: the fuse is arranged in the heating pipe and is connected with the heating circuit in the heating pipe in series.
In this technical scheme, the casing subassembly of charge pump still includes the fuse, sets up in the heating tube to promote the security of charge pump, and, cancelled the fuse of outside setting, make the structure of the casing subassembly of charge pump simpler.
On the basis of any one of the above technical solutions, further, the method further includes: a connector including a third latch; the lead is connected with the heating pipe and the connector and is connected with the connector and the protector; the pump casing further includes: the connecting part is arranged on the main body and is positioned between the mounting part and the first opening; the fourth hasp is located connecting portion, and the connecting portion are located to the connector through third hasp, detachably.
In this technical scheme, the casing subassembly of charge pump still includes connector and wire, and the pump case is including connecting portion, and the connector is installed at connecting portion through third hasp and fourth hasp, and heating pipe and connector are connected to the wire to and connector and protector, and then the maintenance of the protector of being convenient for and heating pipe is changed, and connecting portion are located between installation department and the first opening, and the connector is located between protector and the heating pipe promptly, and then has reduced the input of wire, has reduced manufacturing cost.
According to a second aspect embodiment of the present invention, there is provided an electric pump comprising: the housing assembly of an electric pump according to any of the preceding claims.
The electric pump proposed by the present invention, therefore comprising the housing assembly of the electric pump according to any of the previous claims, has all the advantages of the housing assembly of the electric pump according to any of the previous claims, which are not further described herein.
According to a third aspect embodiment of the present invention, there is provided a dishwasher, comprising: an electric pump as claimed in any one of the preceding claims.
The dishwasher according to the present invention, including the electric pump according to any of the above-mentioned embodiments, has all the advantages of the electric pump according to any of the above-mentioned embodiments, which are not described herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
figure 1 shows a schematic structural view of a housing assembly of an electric pump of the related art;
figure 2 shows a schematic structural view of a housing assembly of an electric pump according to an embodiment of the first aspect of the present invention;
figure 3 shows a schematic structural view of a housing assembly of an electric pump according to another embodiment of the first aspect of the present invention;
fig. 4 shows a schematic structural view of a housing assembly of the electric pump according to a further embodiment of the first aspect of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
a housing assembly of a 100 ' electric pump, a 110 ' pump housing, a 120 ' pump cover, a 130 ' heat conducting plate, a 140 ' connector, 152 ' leads, 154 ' elastic sheets, 156 ' cover plate, 160 ' fuse, 170 ' protector, 180 ' electric heating tube;
the correspondence between the reference numerals and the names of the components in fig. 2 to 4 is:
100, a housing assembly of an electric pump, 110, a pump housing, 112, 1222 a first opening, 1224 a second opening, 1226 a protrusion, 114 a mounting portion, 1142 a base, 1144 a first latch, 1146 a cover, 1148 a second latch, 1150 a mounting cavity, 1152 a connecting portion, 1154 a fourth latch, 1156 a protrusion, 120 a heating tube, 130 a protector, 140 an elastic member, 150 a temperature sensing plate, 160 a sealing member, 170 a fuse, 180 a connector, 182 a third latch, and 190 a wire.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring now to fig. 2 to 4, there is described an electric pump housing assembly 100, an electric pump and a dishwasher provided in accordance with some embodiments of the present invention.
Example 1:
as shown in fig. 2 to 4, the present invention provides a housing assembly 100 for an electric pump, comprising: the pump casing 110, the heating pipe 120, and the protector 130, wherein the protector 130 is installed on an outer surface of the casing, a part of the heating pipe 120 is disposed inside the pump casing 110 to heat the liquid inside the pump casing 110, and the protector 130 is connected in series in a heating circuit of the heating pipe 120.
The housing assembly 100 of the electric pump provided by the present invention comprises a pump housing 110, a heating pipe 120 and a protector 130, wherein the heating pipe 120 heats the liquid in the electric pump, so as to realize rapid heating of the liquid, and for the equipment with high integration, for example: dishwasher, etc., the inner space of increase dishwasher that can be very big to, by the temperature of the interior liquid of protector 130 response pump case 110, and then when liquid temperature risees to a preset temperature threshold value, cut off the heating circuit of heating pipe 120, in order to avoid the accident that liquid temperature was too high to bring, after liquid temperature falls back, protector 130 resets, and the heating circuit of heating pipe 120 resumes the power supply, and heating pipe 120 resumes the heating efficiency.
Moreover, the protector 130 is arranged on the outer surface of the pump shell 110, so that the accuracy of the protector 130 in sensing the temperature of the liquid in the pump shell 110 is improved, the protector 130 is more accurate in starting, the heating circuit is more protected, the heat conducting fins and the pump cover are omitted, the complexity of the shell assembly 100 of the electric pump is reduced, the shell assembly 100 of the electric pump is simple in structure, and the cost is reduced.
Specifically, the heating tube 120 includes a heating tube 120 housing and heating wires disposed in the housing, and a heating circuit connected to the heater, wherein the heating tube 120 is an electrical heating tube.
Wherein, the shell is made of metal.
Specifically, the pump casing 110 includes an upper pump casing and a lower pump casing, and the extended position of the heater pipe 120 and the protector 130 are located in the upper pump casing.
Example 2:
as shown in fig. 2 to 4, further, on the basis of the embodiment, the pump casing 110 includes: a main body 112, a mounting portion 114 provided on the main body 112, and a protrusion 1156, wherein a tip of the protrusion 1156 is provided with a first opening 1222, the protrusion 1156 is located on the same side of the main body 112 as the mounting portion 114, and the mounting portion 114 is used for mounting the protector 130.
In this embodiment, the protrusion 1156 and the mounting portion 114 are disposed on one side of the main body 112, and specifically, the heating tube 120 includes a straight line segment and an arc segment, the straight line segment extends from the first opening 1222 along the protrusion 1156 and into the main body 112, so that the pump housing 110 conforms to the structure of the heating tube 120, the overall structure of the electric pump is more compact and small, and the protrusion 1156 and the protector 130 are located on the same side, so as to reduce the volume of the electric pump and the complexity of the structure of the electric pump; moreover, the heating tube 120 and the protector 130 are on the same side of the main body 112, so that the length of the lead wire 190 is reduced, and the production cost is reduced.
Example 3:
as shown in fig. 2 to 4, in addition to embodiment 2, the mounting portion 114 further includes: a base 1142 and a cover 1146 detachably mounted on the base 1142. The cover 1146 is detachably mounted on the base 1142, and the cover 1146 is mounted on the base 1142, wherein the cover further comprises a first locking mechanism 1144 mounted on the base 1142 and a second locking mechanism 1148 mounted on the cover 1146, and the first locking mechanism 1144 is adapted to the second locking mechanism 1148 for locking or unlocking, so that the cover 1146 is detachably mounted on the base 1142, and when the cover 1146 is mounted on the base 1142, a mounting cavity 1150 for accommodating the protector 130 is formed inside the cover 1146 and the base 1142.
Or the base 1142 and the cover 1146 may be assembled by screws or bolts.
Further, a through hole is formed in the cover 1146 to pass through the wire 190; or the base 1142 has a through hole for passing the wire 190 therethrough
In this embodiment, the mounting portion 114 includes a base 1142, a first latch 1144, a cover 1146 and a second latch 1148, the first latch 1144 is located on the base 1142, the second latch 1148 is located on the cover 1146, the first latch 1144 and the second latch 1148 can be fastened or opened, and the base 1142 and the cover 1146 can be fastened or opened, when the base 1142 and the cover 1146 are fastened, a mounting cavity 1150 is formed, the protector 130 is placed in the mounting cavity 1150, interference of an external environment is reduced, which is more beneficial for the protector 130 to sense the temperature in the pump housing 110, and further improves accuracy of temperature sensing of the protector 130, and the protector 130 is mounted by opening the cover 1146, or the protector 130 is detached by opening the cover 1146, which is simple in operation, and the protection cannot be disengaged, and has high stability.
Specifically, the housing 1142 and the main body 112 may be formed by injection molding to improve the production efficiency and reduce the assembling steps.
Example 4:
as shown in fig. 2 and 4, in addition to embodiment 3, further, the housing assembly 100 of the electric pump further includes: the elastic member 140.
Specifically, the elastic member 140 may be a spring, a rubber pad, a rubber ring, or the like, and the elastic member 140 is disposed between the protector 130 and the cover 1146, so as to press the protector 130 against the pump housing 110, thereby improving the temperature sensing effect of the protector 130.
Further, a positioning portion may be provided on the cover 1146, and the elastic member 140 is mounted on the positioning portion.
Example 5:
on the basis of any one of embodiments 1 to 4, further, the pump casing 110 further includes: the thin portion, i.e., the portion of the pump casing 110 that abuts the protector 130, has a smaller thickness than the other portions of the pump casing 110.
In this embodiment, the wall thickness of the connecting position between the pump casing 110 and the protector 130 is made thin, so as to improve the heat transfer performance of the pump casing 110 and the temperature sensing effect of the protector 130.
Specifically, the wall thickness may be directly injection-molded to be thin, or may be processed to be thin after injection molding.
Example 6:
as shown in fig. 3 and 4, in addition to any one of embodiments 1 to 4, a second opening 1224 is further disposed on the main body 112, and the temperature sensing plate 150 is disposed at the second opening 1224, wherein the second opening 1224 is disposed in the mounting cavity 1150, and the protector 130 abuts against the temperature sensing plate 150.
Specifically, the temperature sensing plate 150 may be made of metal, and the pump housing 110 may be made of plastic.
In this embodiment, the pump casing 110 further includes a temperature sensing plate 150, the temperature sensing plate 150 is disposed at the second opening 1224 of the main body 112, and the protector 130 abuts against the temperature sensing plate 150 with good heat conductivity, so as to further improve the accuracy of the temperature sensing of the protector 130 to the inside of the pump casing 110.
Example 7:
as shown in fig. 4, in addition to embodiment 6, a temperature sensing plate 150 is embedded in the main body 112 by integral injection molding.
In this embodiment, the temperature sensing plate 150 is directly injected into the main body 112, so as to ensure the sealing performance between the temperature sensing plate 150 and the main body 112 and reduce the number of installation steps.
Example 8:
as shown in fig. 3, based on the embodiment 6, further, the housing assembly 100 of the electric pump further includes: a seal 160. Specifically, the seal 160 may be a rubber ring.
The space enclosed by the sidewall of the bottom of the seat body 1142 is larger than the second opening 1224, so that a circle of protrusions 1226 is formed around the second opening 1224, the rubber ring is disposed on the protrusions 1226, and the temperature sensing plate 150 is disposed on the rubber ring.
In this embodiment, the rubber ring can function as the temperature sensing plate 150 and the main body 112 for sealing, and the rubber ring has elasticity and can also function as the protector 130 for pressing the temperature sensing plate 150, and on this basis, the elastic member 140 can be eliminated and the elastic member 140 can be retained.
Example 9:
as shown in fig. 2 to 4, on the basis of any one of embodiments 1 to 8, further, the housing assembly 100 of the electric pump further includes: and the fuse 170 is arranged in the heating pipe 120, and the fuse 170 is connected with the heating circuit of the heating pipe 120 in series.
In this embodiment, when the heating pipe 120 is in an abnormal working environment, for example: dry burning, etc., to avoid the temperature from rising to dangerous temperature, such as high temperature igniting plastic parts, and can trigger the fuse 170 when the temperature reaches the dangerous temperature, the fuse 170 acts to cut off the heating circuit, ensuring safety.
In addition, the mode of arranging the fuse 170 inside also saves the external space, so that the structure of the electric pump is simple.
Example 10:
as shown in fig. 2 to 4, on the basis of any one of embodiments 1 to 8, further, the housing assembly 100 of the electric pump further includes: a connector 180, the connector 180 including a third catch 182, the pump housing 110 further including: the connector 180 may be mounted on the connecting portion 1152 by the third latch 182 and the fourth latch 1154, and may be locked and unlocked by the third latch 182 and the fourth latch 1154, wherein the connecting portion 1152 is located between the protrusion 1156 and the mounting portion 114, a wire 190 is connected between the connector 180 and the protector 130, and a wire 190 is connected between the connector 180 and the heating tube 120.
In this embodiment, connector 180 is detachably disposed on connecting portion 1152, and connecting portion 1152 is located between projection 1156 and mounting portion 114, so as to facilitate disposing of wire 190 and save investment in wire 190.
Example 11:
as shown in fig. 2, the present invention provides an electric pump casing assembly 100 comprising: an electrothermal tube with a stainless steel shell, a plastic pump shell 110, a connector 180, a protector 130, a rubber pad, a cover 1146 and the like. The electric heating tube comprises two straight line sections and an arc section connecting the two straight line sections, the end parts of the two straight line sections extend out of the plastic pump shell 110, the other parts of the two straight line sections are positioned in a pump cavity surrounded by the plastic pump shell 110, a fuse 170 is arranged in the electric heating tube, the fuse 170 is connected in series in a heating circuit, once the electric heating tube is subjected to abnormal heating such as anhydrous dry burning and the like, the temperature of the electric heating tube is quickly increased, the fuse 170 is triggered to act before the temperature is increased to a dangerous temperature such as high temperature, and therefore the heating circuit is cut off.
The plastic pump case 110 includes an upper pump case and a lower pump case, and a water inlet and a water outlet are formed on the plastic pump case 110, wherein the water inlet is formed on the upper pump case, the water outlet is formed on the lower pump case, the plastic pump case 110 surrounds and forms a pump cavity, and the pump cavity accommodates a heating portion, an impeller, and the like of the electric heating tube. The heating pipe 120 is assembled with the pump housing 110 as one body by a fastener. An installation cavity 1150 formed by a cavity base 1142 for accommodating the protector 130 and a cover 1146 is formed on the outer surface of the plastic pump housing 110, the protector 130 is placed in the installation cavity 1150, the sensing surface of the protector 130 is tightly attached to the outer surface of the plastic pump housing 110, wherein the outer surface of the plastic pump housing 110 for supporting the protector 130 is a plane, the cover 1146 compresses the rubber pad after being assembled in place so as to press the protector 130 and enable the sensing surface of the protector 130 to be tightly attached to the surface of the plastic pump housing 110, further, a first lock 1144 and a second lock 1148 of a lock hook structure which are mutually locked are formed between the base 1142 and the cover 1146 to realize reliable fastening between the two, of course, the locking between the two is feasible by screws/pins and the like, and with the design, when the temperature of the water body in the pump cavity changes, the temperature of the plastic pump housing 110 correspondingly changes, and when the temperature of the pump housing 110 reaches the action, the protector 130 of series connection in heating circuit will cut off heating circuit, prevent that the water in the pump chamber from reaching the unexpected injury of temperature bring too high, protector 130 is set to recoverable structure, when the reduction of water temperature reaches the reset temperature that protector 130 set for, protector 130 resets and switches on heating circuit again, furthermore, design like this, the temperature sensing position between protector 130 and the pump case 110 of plastics is in a relative confined cavity, the temperature of temperature sensing department receives external temperature's interference little, higher accuracy to the perception of water temperature.
On the outer surface of the plastic pump housing 110, a structure for fixing the connector 180, i.e. a connecting part 1152, is formed, wherein a locking structure of a third locking catch 182 and a fourth locking catch 1154 is provided between the connector 180 and the connecting part 1152 for locking, but locking by screws/pins or the like is also possible.
The connector 180 is connected in series with the protector 130 and the electrothermal tube through a hard metal wire 190, and feeds power to the heating circuit through the connector 180.
Example 12:
as shown in fig. 3, the present invention provides an electric pump casing assembly 100 comprising: an electrothermal tube of a stainless steel shell, a plastic pump shell 110, a connector 180, a protector 130, a stainless steel temperature sensing plate 150, a rubber pad, a cover body and the like. The electric heating tube comprises two straight line sections and an arc section connecting the two straight line sections, the end parts of the two straight line sections extend out of the plastic pump shell 110, the other parts of the two straight line sections are positioned in a pump cavity surrounded by the plastic pump shell 110, a fuse 170 is arranged in the electric heating tube, the fuse 170 is connected in series in a heating circuit, once the heating assembly is subjected to abnormal heating such as anhydrous dry burning, the temperature of the electric heating tube is quickly increased, the fuse 170 is triggered to act before the heating assembly is heated to a dangerous temperature such as a high-temperature plastic part, and therefore the heating circuit is cut off.
The plastic pump case 110 includes an upper pump case and a lower pump case, and a water inlet and a water outlet are formed on the plastic pump case 110. preferably, the water inlet is formed on the upper pump case, the water outlet is formed on the lower pump case, and the plastic pump case 110 surrounds to form a pump cavity, which accommodates a heating portion of the electric heating tube and the impeller, etc. The electric heating tube is assembled with the plastic pump housing 110 as a whole by a fastener.
A cavity mounting cavity 1150 for accommodating the protector 130 is formed on the outer surface of the plastic pump casing 110, a stainless steel temperature sensing plate 150 is arranged at the bottom of the cavity, one surface of the temperature sensing plate 150 facing the pump cavity directly contacts with the water body, and the other surface is tightly attached to the temperature sensing surface of the protector 130, the temperature sensing plate 150 and the plastic pump casing 110 are fixed, the temperature sensing plate 150 and the plastic pump casing 110 are integrated by injection molding, the protector 130 is arranged in the protector cavity mounting cavity, the cover 1146 is assembled in place and then compresses the rubber pad to compress the protector 130 and enable the sensing surface of the protector 130 to be tightly attached to the surface of the temperature sensing plate 150, wherein, a first lock catch 1144 and a second lock catch 1148 which are mutually locked and formed between the casing 1142 and the cover 1146 realize reliable fastening between the two, of course, the locking between the casing and the casing by screws/pins and the like is also feasible, and the design is such that, the temperature of stainless steel temperature sensing board 150 will correspondingly change, when the temperature of temperature sensing board 150 reaches the action temperature that protector 130 set for, the protector 130 of series connection in heating circuit will cut off heating circuit, prevent that the water in the pump chamber from reaching too high temperature and bringing accidental injury, protector 130 is set to recoverable structure, when the reduction of water temperature reaches the reset temperature that protector 130 set for, protector 130 resets and switches on heating circuit again, and, design so, the temperature sensing position between protector 130 and temperature sensing board 150 is in a relative confined cavity, the temperature of temperature sensing department receives external temperature's interference little, higher accuracy to the perception of water temperature.
A structure for fixing the connector 180, i.e., the connection 1152, is formed on the outer surface of the plastic pump casing 110, wherein a locking structure of the third locking catch 182 and the fourth locking catch 1154, which are locked to each other, is provided between the connector 180 and the fixing structure of the plastic pump casing 110, although it is also possible to lock the two by screws/pins or the like.
The connector 180 is connected in series with the protector 130 and the electrothermal tube through a hard metal wire 190, and feeds power to the heating circuit through the connector 180.
Example 13:
as shown in fig. 4, the difference from embodiment 12 is that, the fixing manner of the temperature sensing plate 150 and the main body 112 of the plastic pump case 110 is that a part of the main body 112 of the plastic pump case 110 in the installation cavity 1150 is provided with an opening, the diameter of the opening is smaller than the inner diameter of the cavity, a protrusion 1226 is formed from the surface, a rubber pad is placed in the protrusion 1226, the stainless steel temperature sensing plate 150 is placed on the rubber pad, the surface of the temperature sensing plate 150 facing the pump cavity directly contacts the water body in the pump cavity, and the other surface is tightly attached to the temperature sensing surface of the protector 130, after the cover 1146 and the protrusion 1226 are assembled in place, the protector 130, the rubber pad and the temperature sensing plate 150 are clamped from both sides, the rubber pad is in a compressed state.
Example 14:
the present invention provides an electric pump comprising: the housing assembly 100 of the electric pump as provided in any of the above embodiments.
The electric pump provided by the present invention, including the housing assembly 100 of the electric pump provided in any of the above embodiments, has all the advantages of the housing assembly 100 of the electric pump provided in any of the above embodiments, and therefore, the description thereof is omitted.
Specifically, the electric pump further includes a motor and an impeller disposed within the pump housing 110 to effect propulsion of the fluid and heating of the fluid through the housing assembly 100 of the electric pump.
Example 15:
the present invention provides a dishwasher, comprising: an electric pump as claimed in any one of the preceding embodiments.
The dishwasher provided by the invention comprises the electric pump provided by any embodiment, so that the dishwasher has all the advantages of the electric pump provided by any embodiment, and the advantages are not stated in any way.
Specifically, the dishwasher has a housing, a washing chamber, a waterway system and a circuit system, wherein the circuit system is connected with the protector 130, the waterway system is connected with the electric pump and the washing chamber, and then the water is pumped into the washing chamber to realize the washing effect.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A housing assembly for an electric pump, comprising:
a pump housing;
the heating pipe is at least partially arranged in the pump shell and comprises a heating circuit;
and the protector is arranged on the outer surface of the pump shell and is connected with the heating circuit of the heating pipe in series.
2. The housing assembly of the electric pump according to claim 1, characterized in that said pump casing comprises:
the heating pipe comprises a main body, a heating pipe body and a heating pipe body, wherein the main body is provided with a first opening, and the heating pipe body is arranged in the first opening in a penetrating manner;
the installation department is located the main part, the installation department with first opening is located same one side of main part, the protector is located the installation department.
3. The housing assembly of the electric pump according to claim 2, characterized in that said mounting portion comprises:
the seat body is arranged on the main body;
the first lock catch is arranged on the seat body;
a cover body;
the second lock catch is matched with the first lock catch, the second lock catch is arranged on the cover body, and the cover body is detachably arranged on the base body through the second lock catch and the first lock catch;
the cover body and the base body can form an installation cavity, and the protector is arranged in the installation cavity.
4. The housing assembly of the electric pump of claim 3, further comprising:
the elastic piece is arranged in the mounting cavity and is positioned between the cover body and the protector.
5. The housing assembly of an electric pump according to claim 3,
the pump casing further includes:
the thin-wall part is arranged on the main body, and the protector is arranged on the thin-wall part; or
The pump casing further includes:
the temperature sensing plate, the main part is provided with the second opening, the second opening is located the installation intracavity, the temperature sensing plate is located the second opening part, the protector supports to be located the temperature sensing plate.
6. The housing assembly of the electric pump according to claim 5, characterized in that, in the case where said pump casing comprises said thermowell:
the temperature sensing plate is embedded in the main body; or
The housing assembly of the electric pump further comprises:
the sealing member, the second opening with installation cavity week side wall is formed with the arch, the temperature sensing board sets up in the installation cavity, the sealing member set up in the arch with between the temperature sensing board.
7. The housing assembly of the electric pump according to any one of claims 1 to 6, further comprising:
the fuse is arranged in the heating pipe and connected with the heating circuit in the heating pipe in series.
8. The housing assembly of the electric pump according to any one of claims 2 to 6, further comprising:
a connector comprising a third latch;
a lead connecting the heating pipe and the connector and connecting the connector and the protector;
the pump casing further includes:
the connecting part is arranged on the main body and is positioned between the mounting part and the first opening;
the fourth lock catch is arranged on the connecting part, and the connector is detachably arranged on the connecting part through the third lock catch.
9. An electric pump, characterized in that it comprises:
a housing assembly for an electric pump according to any one of claims 1 to 8.
10. A dishwasher, comprising:
the electric pump of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564164.2A CN111706520B (en) | 2020-06-19 | 2020-06-19 | Shell assembly of electric pump, electric pump and dish washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564164.2A CN111706520B (en) | 2020-06-19 | 2020-06-19 | Shell assembly of electric pump, electric pump and dish washing machine |
Publications (2)
| Publication Number | Publication Date |
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| CN111706520A true CN111706520A (en) | 2020-09-25 |
| CN111706520B CN111706520B (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010564164.2A Active CN111706520B (en) | 2020-06-19 | 2020-06-19 | Shell assembly of electric pump, electric pump and dish washing machine |
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| Country | Link |
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| CN (1) | CN111706520B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113499010A (en) * | 2021-08-19 | 2021-10-15 | 广东威灵电机制造有限公司 | Heating assembly of heating pump, heating pump and washing electric appliance |
| CN113499011A (en) * | 2021-08-19 | 2021-10-15 | 广东威灵电机制造有限公司 | Heating pump and washing appliance |
| CN113576365A (en) * | 2021-08-19 | 2021-11-02 | 广东威灵电机制造有限公司 | Heating assembly of heating pump, heating pump and washing electric appliance |
| CN113768444A (en) * | 2021-10-18 | 2021-12-10 | 佛山市威灵洗涤电机制造有限公司 | Heat Pump and Dishwasher |
| WO2023019695A1 (en) * | 2021-08-19 | 2023-02-23 | 广东威灵电机制造有限公司 | Heating assembly of heating pump, and heating pump and electric washing appliance |
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