CN202326275U - Centrifugal drainage pump - Google Patents
Centrifugal drainage pump Download PDFInfo
- Publication number
- CN202326275U CN202326275U CN2011203853008U CN201120385300U CN202326275U CN 202326275 U CN202326275 U CN 202326275U CN 2011203853008 U CN2011203853008 U CN 2011203853008U CN 201120385300 U CN201120385300 U CN 201120385300U CN 202326275 U CN202326275 U CN 202326275U
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- Prior art keywords
- impeller
- axle sleeve
- groove
- terminal
- drum
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Abstract
The utility model discloses a centrifugal drainage pump, which includes a coil assembly, as well as a rotor cavity and an impeller cavity that are formed through a pump body and a pump cover and are mutually isolated, wherein the impeller cavity includes a tubular shaft sleeve sleeved on a rotor shaft, and an impeller installed on the shaft sleeve; an accommodating cavity for accommodating the shaft sleeve is arranged at the center of the impeller; a spacing rib in the accommodating cavity interferes with a starting rib on the shaft sleeve; a damping pillar is arranged between the contact surfaces of the spacing rib and the starting rib; the coil assembly includes a reel and a terminal clamp; a terminal groove and a protector power cord groove are arranged on the reel; a terminal and a protector power cord are fixed through matching the terminal groove and the protector power cord groove with the terminal clamp; and a thread end groove is arranged on the reel and used for fixing a thread end. The centrifugal drainage pump can be no-load started, the installation manner is simple and reliable, noise and vibration when the water pump is started and operates can be effectively reduced, through matching the grooves on the reel with the terminal clamp and arranging the thread end groove, the process can be simplified, and the production efficiency can be improved.
Description
Technical field
The utility model relates to a kind of centrifugal draining pump, in particular for a kind of centrifugal draining pump of household electric appliance.
Background technique
U.S. Patent application, application number 10/723295, publication number US2005/0111992 discloses the centrifugal draining pump that a kind of household electric appliance use.Draining pump described in should specially planting is that load is big when solving starting mode of pump, and the problem of burning motor easily designs, and it mainly connects the startup between axle sleeve and the impeller and improves.This patent is provided with the startup muscle at axle sleeve, and outwards also is provided with a spacing muscle in impeller inside, has all wrapped up one deck elastomeric objects in end-fire two sides that start muscle and spacing muscle, with noise-decreasing and absorbing vibration.But this design more complicated causes manufacturing efficiency low, and cost is higher.
Present traditional draining pump, its coil assembly directly are pressed in terminal and protector power line to be annotated plasticly on the injection mould, internal interface the end of a thread is suspended between winding after with the silicone tube insulation, this complex process, and manufacturing efficiency is low.
The model utility content
The purpose of the utility model is to overcome above-mentioned shortcoming, and the startup muscle of centrifugal draining pump and the structure of spacing muscle are improved and the means of fixation of terminal and the end of a thread is improved, the centrifugal draining pump that provides a kind of simple in structure, production technology to simplify.
The centrifugal draining pump that the utility model provided comprises coil assembly and the rotor chamber and the impeller cavity of the mutual isolation that formed by the pump housing and pump cover; Coil assembly is made up of drum, terminal clamp, terminal, protector, protector power line, enameled cable and the plastic material of coil assembly; Impeller cavity comprises the tubular sleeve that is enclosed within on the rotor shaft, is installed on the impeller on the axle sleeve; There is a receiving cavity in said impeller central authorities; Described axle sleeve outer wall is protruding with one and starts muscle, and the protruding spacing muscle of the inwall of the receiving cavity that said impeller is central interferes with this spacing muscle behind the moving certain distance of startup myospasm.The receiving cavity of impeller central authorities is shaped as " protruding " font swiveling body, and said receiving cavity minor diameter part is arranged with the axle sleeve receiving cavity, and the spacing muscle of impeller is " bifurcation " font, and the receiving cavity of impeller respectively is provided with the fixing ribs of a convexity in spacing muscle both sides; Other is provided with the shock structure that shape matches with described spacing muscle and fixing ribs, and shock structure partly imbeds the space that spacing muscle and fixing ribs surround, and forms with impeller to fit tightly.
Said axle sleeve one end is provided with annular boss; Be provided with annular seal groove in the middle of the said annular boss; The endoporus inwall of axle sleeve is provided with a plane, and the axle sleeve the other end is provided with the back-off of a diameter less than diameter of bore, and the back-off opposite is provided with the semicylindrical opening of a diameter greater than diameter of bore.
The external diameter of rotor shaft is provided with a plane, matches with axle sleeve endoporus plane in this plane, and rotor shaft drives axle sleeve and rotates when rotating, and an end of rotor shaft is provided with groove, and rotor shaft passes from the endoporus of axle sleeve.
Said impeller sealing ring is circular, is made by elastic material, is loaded in the annular seal groove of axle sleeve, contacts with the internal surface of the receiving cavity of the internal surface of sleeve sealing groove and impeller, and formation is sealed and matched.
The space that the groove of described rotor shaft and the endoporus of axle sleeve and semicylindrical opening surround is filled and is solidified glue.
The square groove of described drum, half slot cooperate with terminal clamp and can terminal and protector power line be fixed; Drum is provided with the end of a thread groove; Can connector lug be inserted this groove and fix, drum is provided with some through holes, matches with the last pillar of terminal clamp in order to fixing terminal clamp.
The described centrifugal draining pump of the utility model has the following advantages:
(1) water pump can No Load Start, has solved the big problem of electric motor starting load;
(2) mounting type that is installed on the spacing muscle of impeller of shock structure is simple, reliable;
(3) mounting type that is installed on the axle sleeve of impeller sealing ring is simple, reliable;
(4) through the effect of shock structure and impeller sealing ring, noise and vibration when effectively reducing starting mode of pump and operation;
(5) means of fixation of terminal, protector power line and the end of a thread is simple, reliable, and manufacturing efficiency is high.
Description of drawings:
Fig. 1 is the described centrifugal draining pump structure general assembly drawing of the utility model, and wherein 1 is that outer bearing carrier Sealing, 2 is that outer bearing carrier, 3 is that bearing, 4 is that impeller sealing ring, 5 is that shock structure, 6 is that impeller latch fitting, 7 is that axle sleeve, 8 is that impeller, 9 is that pump cover, 10 is that pump gland, 11 is that screw, 12 is that the pump housing, 13 is that p-m rotor, 14 is that the plastic material of p-m rotor, 15 is that rotor shaft, 16 is that inner pedestal, 17 is that protector power line, 18 is that protector, 19 is that enameled cable, 20 is that drum, 21 is that terminal, 22 is that terminal clamp, 23 is that the plastic material of coil assembly, 24 is that stator iron core, 25 is a curing glue.
Fig. 2 is the E-E sectional view of Fig. 1.
Fig. 3 a is the structural representation of axle sleeve.
Fig. 3 b is the plan view of Fig. 3 a.
Fig. 3 c is the F-F sectional view of Fig. 3 b.
Fig. 3 d is the G-G sectional view of Fig. 3 a.
Fig. 4 is the structural representation after axle sleeve, rotor shaft, impeller sealing ring, the installation of curing glue.
Fig. 5 is the structural representation of rotor shaft.
Fig. 6 a is the structural representation of impeller seals spare.
Fig. 6 b is the H-H schematic representation of Fig. 6 a.
Fig. 7 a is the structural representation after impeller and shock structure are installed.
Fig. 7 b is the I-I sectional view of Fig. 7 a.
Fig. 7 c is the J-J sectional view of Fig. 7 a.
Fig. 8 a is the structural representation of shock structure.
Fig. 8 b is the left view of Fig. 8 a.
Fig. 9 a is the structural representation of drum.
Fig. 9 b is the plan view of Fig. 9 a.
Fig. 9 c is the L-L view of Fig. 9 a.
Figure 10 a is the structural representation of terminal clamp.
Figure 10 b is the plan view of Figure 10 a.
Figure 11 a is the structural representation of terminal.
Figure 11 b is the left view of Figure 11 a.
Figure 12 is plastic preceding coil assembly structural representation.
Embodiment
As shown in Figure 1, described centrifugal draining pump is the same with common centrifugal draining pump, comprises the rotor chamber and the impeller cavity of mutual isolation.Rotor chamber is made up of the plastic material of the pump housing 12, p-m rotor 13, rotor shaft 15, p-m rotor 14, bearing 3, outer bearing carrier 2, bearing seal 1 and inner pedestal 16; Impeller cavity comprises pump cover 9, the pump housing 12, axle sleeve 7, impeller 8, shock structure 5, impeller sealing ring 4, impeller latch fitting 6, pump gland 10, solidifies glue 25 compositions.There is the receiving cavity 37 of one " protruding " font swiveling body in impeller 8 central authorities, are used for ccontaining axle sleeve 7, and the impeller latch fitting 6 with an annular under impeller 8 receiving cavities is spacing in receiving cavity axle sleeve 7.Axle sleeve main body outer wall starts muscle 28 to outer lug one, and the protruding spacing muscle 26 of impeller receiving cavity inwall, behind the axle sleeve 7 rotation certain distances, startup muscle 28 interferes with spacing muscle 26 and contacts.Drum 20 is provided with square groove 42, half slot 41, and with terminal clamp 22 matching and fixing terminals 21 and protector power line 17, drum 20 is provided with the end of a thread groove 43, in order to link head 47.
The creation point of the utility model is that axle sleeve 7 is connected the means of fixation of cooperating of cooperation, axle sleeve 7 and rotor shaft 15 and terminal 21, protector power supply 17, the end of a thread 47 with startup between the impeller 8, will describe their structure below in detail and connection each other cooperates.
Shown in Fig. 3 a, 3b, 3c, 3d; Be the structural representation of axle sleeve, described axle sleeve 7 one ends are columniform tubular body 27, and the sidewall of tubular body 27 has the part protrusion to form a startup muscle 28; The other end is provided with annular boss 29; In the middle of the annular boss 29 annular seal groove 30 is set, endoporus 34 inwalls of axle sleeve 7 are provided with a plane 48, and endoporus 34 runs through full annular boss 29 and tubular body 27; Tubular body 27 1 ends are provided with the back-off 31 of a diameter less than endoporus 34 diameters, and axle sleeve 7 inner hole walls on back-off 31 opposites are provided with the semicylindrical opening 32 of a diameter greater than endoporus 34 diameters.
As shown in Figure 1, tubular body 27 1 ends of axle sleeve 7 receive axle sleeve receiving cavity 39 rests of impeller 8, the beat problem when solving impeller 8 rotations.
As shown in Figure 4; Rotor shaft 15 passes the endoporus 34 of axle sleeve 7; The plane 48 of endoporus 34 inwalls and plane 35 interferences of rotor shaft 15 external diameters; Propeller shaft sleeve 7 rotates together when making rotor shaft 15 rotations, and the groove 36 of rotor shaft 15 1 ends matches with the back-off 31 of axle sleeve 7 inner hole walls simultaneously, prevents that axle sleeve 7 from axially coming off from rotor shaft 15.For satisfy individual customer to axle sleeve 7 from the bigger requirement of the pullout of strength of rotor shaft 15, fill in the endoporus 34 of groove of rotor shaft 15 36 and axle sleeve 7 and space that semicylindrical opening 32 surrounds and to solidify glue 25.
Like Fig. 4 and shown in Figure 1; Circular impeller sealing ring 4 is made by elastic material, is loaded in the annular seal groove 30 of axle sleeve 7; Contact with the internal surface 40 of the receiving cavity 37 of the internal surface 33 of the annular seal groove 30 of axle sleeve 7 and impeller 8; Formation is sealed and matched, and impurity such as anti-sealing get in the receiving cavity of impeller 8, cause pump operation bad.
Like Fig. 9 a, Fig. 9 b Fig. 9 c, Figure 10 a, Figure 10 b, Figure 11 a, Figure 11 b, Figure 12 and shown in Figure 1, drum (20) is provided with semicircular groove (41), and the fixedly power line (17) of protector (18) matches with semi-circular recesses (46) that terminal clamp (22) is provided with; Drum (20) is provided with square groove (42), and fixed terminal (21) matches with terminal clamp (22); Drum (20) is provided with some through holes (44), matches with some pillars (45) that terminal clamp (22) is provided with, and terminal clamp (22) is fixed on the drum (20); Drum (20) left and right sides is provided with the end of a thread groove (43), and after the welding of protector power line (17) and enameled cable (19), the end of a thread (47) can insert the end of a thread groove (43), with fixing the end of a thread (47).
Above-described the utility model mode of execution does not constitute the qualification to the utility model protection domain.The modification of being done within any spirit and principle at the utility model, be equal to replacement and improvement etc., all should be included within the claim protection domain of the utility model.
Claims (6)
1. centrifugal draining pump; The rotor chamber and the impeller cavity of the mutual isolation that comprises coil assembly and form by the pump housing and pump cover; Coil assembly is made up of drum (20), terminal clamp (22), terminal (21), protector (18), protector power line (17), enameled cable (19) and the plastic material of coil assembly (23); Be provided with the tubular sleeve (7) that is enclosed within on the rotor shaft (15) in the impeller cavity, be installed on the impeller (8) on the axle sleeve (7); There is a receiving cavity (37) in said impeller (8) central authorities, and described axle sleeve (7) outer wall protrusion one starts muscle (28), the protruding spacing muscle (26) of the inwall of the receiving cavity (37) of said impeller (8) central authorities; Start and interfere with this spacing muscle (26) after muscle (28) rotates certain distance
It is characterized in that:
The receiving cavity (37) of said impeller (8) central authorities is " protruding " font swiveling body, and receiving cavity (37) minor diameter part branch is provided with axle sleeve receiving cavity (39); And
The spacing muscle (26) of said impeller (8) is " bifurcation " font; The receiving cavity (37) of impeller (8) respectively is provided with the fixing ribs (38) of a convexity in spacing muscle (26) both sides; Other is provided with the shock structure (5) that shape matches with described spacing muscle (26) and fixing ribs (38), and shock structure (5) part is imbedded spacing muscle (26) and the space that fixing ribs (38) surrounds, and fits tightly with impeller formation.
2. centrifugal draining pump according to claim 1; It is characterized in that: said axle sleeve (7) one ends are provided with annular boss (29); Be provided with annular seal groove (30) in the middle of the said annular boss (29); Endoporus (34) inwall of axle sleeve (7) is provided with a plane (48), and axle sleeve (7) the other end is provided with the back-off (31) of a diameter less than endoporus (34) diameter, and back-off (31) opposite is provided with the semicylindrical opening (32) of a diameter greater than endoporus (34) diameter.
3. centrifugal draining pump according to claim 1 and 2 is characterized in that: the external diameter of said rotor shaft (15) is provided with a plane (35), and an end of rotor shaft (15) is provided with groove (36), and rotor shaft (15) passes from the endoporus (34) of axle sleeve (7).
4. centrifugal draining pump according to claim 2 is characterized in that: be provided with circular impeller sealing ring (4) in the said annular seal groove (30).
5. centrifugal draining pump according to claim 3 is characterized in that: the space that the groove (36) of said rotor shaft (15) and the endoporus (34) of axle sleeve (7) and semicylindrical opening (32) surround is filled with solidifies glue (25).
6. centrifugal draining pump according to claim 1 is characterized in that: described drum (20) is provided with semicircular groove (41), and the fixedly power line (17) of protector (18) matches with semi-circular recesses (46) that terminal clamp (22) is provided with; Drum is provided with square groove (42), and fixed terminal (21) matches with terminal clamp (22); Drum (20) is provided with some through holes (44), matches with the pillar (45) of terminal clamp (22), and terminal clamp (22) is fixed on the drum (20); Drum (20) left and right sides is provided with the end of a thread groove (43), and after the welding of protector power line (17) and enameled cable (19), the end of a thread (47) can insert the end of a thread groove (43), with fixing the end of a thread (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203853008U CN202326275U (en) | 2011-10-11 | 2011-10-11 | Centrifugal drainage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203853008U CN202326275U (en) | 2011-10-11 | 2011-10-11 | Centrifugal drainage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326275U true CN202326275U (en) | 2012-07-11 |
Family
ID=46438257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203853008U Expired - Fee Related CN202326275U (en) | 2011-10-11 | 2011-10-11 | Centrifugal drainage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019212143A1 (en) * | 2018-04-30 | 2019-11-07 | New Motech Co., Ltd. | Drain pump for washing machine |
-
2011
- 2011-10-11 CN CN2011203853008U patent/CN202326275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019212143A1 (en) * | 2018-04-30 | 2019-11-07 | New Motech Co., Ltd. | Drain pump for washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TANG JIANDI Free format text: FORMER OWNER: HUANG GUOXING Effective date: 20120726 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120726 Address after: 511500 Guangdong city of Qingyuan province Qingyuan City Qingcheng District Songhe Street Veyron A metro area 8 Building No. 501 Patentee after: Tang Jiandi Address before: 511500 Guangdong city of Qingyuan province Qing Sha Sha Tin Road Tung Village Industrial Zone B building 4 floor Hampshire Motor Factory Patentee before: Huang Guoxing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |