CN204145159U - Electric motor end cap and motor, booster pump - Google Patents
Electric motor end cap and motor, booster pump Download PDFInfo
- Publication number
- CN204145159U CN204145159U CN201420538379.7U CN201420538379U CN204145159U CN 204145159 U CN204145159 U CN 204145159U CN 201420538379 U CN201420538379 U CN 201420538379U CN 204145159 U CN204145159 U CN 204145159U
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- end cap
- bearing
- electric motor
- motor end
- cap body
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Abstract
The utility model is applicable to machine field, provide electric motor end cap and there is the motor of this electric motor end cap, there is the booster pump of this motor, electric motor end cap comprises end cap body and is located at the bearing pedestal on end cap body, bearing pedestal is provided with the bearing chamber for the accommodating location of bearing, the axial cross section of the inner surface contour of bearing chamber is the regular polygon that inscribed circle diameter is less than bearing outside diameter, and axial cross section is the cross section vertical with the axis of bearing pedestal.The utility model, reduces the accuracy of manufacture requirement of bearing chamber on the one hand, makes electric motor end cap be more prone to manufacture, is more conducive to the batch production of electric motor end cap; Bearing can be made to be installed on bearing bore indoor in an interference fit on the other hand, thus be beneficial to and prevent bearing outer ring and bearing chamber generation relative rotary motion, and then be beneficial to the situation preventing from producing friction noise and impact noise between bearing outer wall and bearing bore chamber interior walls and occur; Be beneficial on the one hand again and reduce the operation easier that bearing is installed on bearing bore indoor.
Description
Technical field
The utility model belongs to machine field, particularly relates to electric motor end cap and has the motor of this electric motor end cap, has the booster pump of this motor.
Background technology
In conventional art, the cross section of the bearing chamber of electric motor end cap is set to circle mostly, and it is very high that this can cause the accuracy of manufacture of bearing chamber to require; Simultaneously, because electric motor end cap easily produces contraction distortion in injection molding process, therefore, in embody rule, the cross section of the bearing chamber of the electric motor end cap of injection mo(u)lding is generally ellipse, thus have impact on the quality of fit of bearing and bearing chamber, like this, in the long-time running of motor, between bearing outer wall and bearing bore chamber interior walls, easily produce friction noise and impact noise.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide electric motor end cap and have the motor of this electric motor end cap, have the booster pump of this motor, it is intended to the low technical problem of high and bearing chamber and bearing the quality of fit of requirement on machining accuracy of existing electric motor end cap upper bearing (metal) chamber.
For achieving the above object, the technical solution adopted in the utility model is: electric motor end cap, comprise end cap body and be located at the bearing pedestal on described end cap body, described bearing pedestal is provided with the bearing chamber for the accommodating location of bearing, the axial cross section of the inner surface contour of described bearing chamber is the regular polygon that inscribed circle diameter is less than described bearing outside diameter, and described axial cross section is the cross section vertical with the axis of described bearing pedestal.
Preferably, the limit number of described regular polygon is the integral multiple of three, and this integral multiple is more than or equal to two times.
More preferably, described regular polygon is dodecagon.
Further, described end cap body is convexly equipped with the ring-type screens flange closed with the inserting of casing card, described ring-type screens flange is between described bearing pedestal and the outward flange of described end cap body.
Further, reinforcement is provided with between described ring-type screens flange and described bearing pedestal.
Further, described end cap body is also provided with the storage tank for the first accommodating location of sealing ring, and described storage tank is between described ring-type screens flange and the outward flange of described end cap body.
Further, described end cap body is also provided with the connecting hole worn for securing member, and described connecting hole is between described ring-type screens flange and described bearing pedestal.
Preferably, described end cap body and described bearing pedestal integrated injection molding.
Further, the utility model additionally provides motor, it bearing comprising casing, above-mentioned electric motor end cap and be located at described bearing bore indoor, and described electric motor end cap is located at one end of described casing.
Further, the utility model additionally provides booster pump, and it comprises the pump housing and above-mentioned motor, and the described pump housing is fastenedly connected described motor.
The electric motor end cap that the utility model provides and there is the motor of this electric motor end cap, there is the booster pump of this motor, the regular polygon that inscribed circle diameter is less than bearing outside diameter is set to by the axial cross section of the inner surface contour by bearing chamber, like this, reduce the accuracy of manufacture requirement of bearing chamber on the one hand, make electric motor end cap be more prone to manufacture, be more conducive to the batch production of electric motor end cap; Bearing can be made to be installed on bearing bore indoor in an interference fit on the other hand, thus be beneficial to and prevent bearing outer ring and bearing chamber generation relative rotary motion, and then be beneficial to the situation preventing from producing friction noise and impact noise between bearing outer wall and bearing bore chamber interior walls and occur; Reduce the contact area between bearing bore chamber interior walls and bearing outer wall more on the one hand, thus be beneficial to the operation easier that reduction bearing is installed on bearing bore indoor.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the electric motor end cap that the utility model embodiment provides;
Fig. 2 is the schematic top plan view of the electric motor end cap that the utility model embodiment provides;
Fig. 3 is the decomposing schematic representation of the booster pump that the utility model embodiment provides;
Fig. 4 is the assembling schematic diagram of the booster pump that the utility model embodiment provides;
Fig. 5 is the generalized section of the booster pump that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, when an element is described on " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.Be described to be " connection " another element when an element, it can be directly connect another element or may there is centering elements simultaneously.
As shown in Figure 1, Figure 2 with shown in Fig. 5, the electric motor end cap 1 that the utility model embodiment provides, the bearing pedestal 12 comprising end cap body 11 and be located on end cap body 11, bearing pedestal 12 is provided with the bearing chamber 121 for bearing (rear bearing 2 in the present embodiment) accommodating location, the axial cross section of the inner surface contour 1210 of bearing chamber 121 is the regular polygon that inscribed circle diameter is less than bearing outside diameter, and axial cross section is the cross section vertical with the axis of bearing pedestal 12.The utility model embodiment, the axial cross section of bearing chamber 121 inner surface contour 1210 is set to regular polygon, effectively can reduce the accuracy of manufacture requirement of bearing chamber 121 on the one hand, thus reduce the manufacture difficulty of electric motor end cap 1, make electric motor end cap 1 be more prone to manufacture, and then be more conducive to the batch production of electric motor end cap 1; Bearing can be made to be interference fit with coordinating of bearing chamber 121 on the other hand, the situation preventing bearing outer ring and bearing chamber 121 that relative rotary motion occurs occurs, and then is beneficial to the situation preventing from producing between bearing outer wall and bearing chamber 121 inwall friction noise and impact noise and occurs; The contact area between bearing chamber 121 inwall and bearing outer wall can be reduced on the one hand again, thus be beneficial to and reduce bearing and be installed on operation easier in bearing chamber 121.
Preferably, the limit number of regular polygon is the integral multiple of three, and this integral multiple is more than or equal to two times, and like this, the structure of bearing chamber 121 is simple, be easy to manufacture, and is beneficial to coordinating of bearing and bearing chamber 121.
More preferably, regular polygon is dodecagon, and namely the limit number of regular polygon is 12.We know, the limit number of regular polygon is more, and the contact point of bearing outer wall and bearing chamber 121 inwall is more, and the solid and reliable property that bearing is installed in bearing chamber 121 is higher, but the structure of bearing chamber 121 is also more complicated, and its manufacture difficulty is also larger.The present embodiment, is set to dodecagon by regular polygon, both can ensure that the solid and reliable sexual satisfaction designing requirement in bearing chamber 121 installed by bearing, and the structure of bearing chamber 121 can be made again to be unlikely to too complicated.
Preferably, as shown in Figure 1, Figure 2 with shown in Fig. 5, end cap body 11 is also convexly equipped with the ring-type screens flange 111 closed with the inserting of casing 4 card, ring-type screens flange 111 is between bearing pedestal 12 and the outward flange 110 of end cap body 11.The setting of ring-type screens flange 111, can play guide-localization effect to the installation of electric motor end cap 1 and casing 4 on the one hand, thus effectively can improve the efficiency of assembling of electric motor end cap 1 and casing 4; Can be used on the other hand limiting motor end cap 1 to assemble rear motor end cap 1 with casing 4 and move radially displacement with the relative of casing 4, thus be beneficial to the solid and reliable property ensureing that electric motor end cap 1 and casing 4 are assembled.
Further, as depicted in figs. 1 and 2, between ring-type screens flange 111 and bearing pedestal 12, be provided with reinforcement 112, like this, the structural strength of electric motor end cap 1 can be improved.
Further, as shown in Figure 1, Figure 2 with shown in Fig. 5, end cap body 11 is also provided with the storage tank 113 for the first accommodating location of sealing ring 3, and storage tank 113 is between ring-type screens flange 111 and the outward flange 110 of end cap body 11.The setting of the first sealing ring 3, can improve the fitted seal degree of electric motor end cap 1 and casing 4, thus can improve the fitted seal degree of electric motor end cap 1 and casing 4; The setting of storage tank 113, is mainly used in accommodating in the inner for the first sealing ring 3, like this, can realize the installation location of the first sealing ring 3, thus can prevent coming off easily of the first sealing ring 3.
Further, as shown in Figure 1, Figure 2 and Figure 3, end cap body 11 is also provided with the connecting hole 114 worn for securing member 100, and connecting hole 114 is between ring-type screens flange 111 and bearing pedestal 12.Securing member 100 specifically can be screw or rivet etc., the setting of securing member 100 and connecting hole 114, is mainly used in realizing being fastenedly connected of electric motor end cap 1 and casing 4.
Preferably, end cap body 11 integrated injection molding, like this, only need design in embody rule and process corresponding mould, just by mould integrated injection molding end cap body 11, it is beneficial to the production in enormous quantities manufacture of electric motor end cap 1.
Further, as seen in figures 3-5, the utility model embodiment still provides motor, it bearing comprising casing 4 and above-mentioned electric motor end cap 1 and be located in bearing chamber 121, and electric motor end cap 1 is located at one end of casing 4.The motor that the present embodiment provides, owing to have employed above-mentioned electric motor end cap 1, therefore the accuracy of manufacture reducing motor requires and reduces the operation noise of motor.
As seen in figures 3-5, the electric motor end cap 1 that the present embodiment provides is the rear end cap of motor, the above-mentioned bearing be installed in electric motor end cap 1 corresponds to rear bearing 2, particularly, motor also comprises front end housing 5, fore bearing 6, first sealing ring 3, second sealing ring 7, rotor 10 and stator 9, rotor 10 and stator 9 are located in casing 4, front end housing 5 and rear end cap are installed on the two ends of casing 4 respectively, fore bearing 6 and rear bearing 2 are contained in front end housing 5 and rear end cap respectively, first sealing ring 3 is located between casing 4 and front end housing 5, second sealing ring 7 is located between casing 4 and rear end cap.
Further, as seen in figures 3-5, the utility model embodiment still provides booster pump, and it comprises the pump housing 8 and above-mentioned motor, and the pump housing 8 is fastenedly connected motor.The pump housing 8 specifically connects the front end housing 5 of motor by screw fastening.The booster pump that the present embodiment provides, owing to have employed above-mentioned motor, therefore the accuracy of manufacture reducing booster pump requires and reduces the operation noise of booster pump.
The booster pump that the present embodiment provides preferably is applicable on water purifier.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. electric motor end cap, comprise end cap body and be located at the bearing pedestal on described end cap body, described bearing pedestal is provided with the bearing chamber for the accommodating location of bearing, it is characterized in that: the axial cross section of the inner surface contour of described bearing chamber is the regular polygon that inscribed circle diameter is less than described bearing outside diameter, and described axial cross section is the cross section vertical with the axis of described bearing pedestal.
2. electric motor end cap as claimed in claim 1, is characterized in that: the limit number of described regular polygon is the integral multiple of three, and this integral multiple is more than or equal to two times.
3. electric motor end cap as claimed in claim 2, is characterized in that: described regular polygon is dodecagon.
4. the electric motor end cap as described in any one of claims 1 to 3, is characterized in that: described end cap body is convexly equipped with the ring-type screens flange closed with the inserting of casing card, and described ring-type screens flange is between described bearing pedestal and the outward flange of described end cap body.
5. electric motor end cap as claimed in claim 4, is characterized in that: be provided with reinforcement between described ring-type screens flange and described bearing pedestal.
6. electric motor end cap as claimed in claim 4, is characterized in that: described end cap body is also provided with the storage tank for the first accommodating location of sealing ring, and described storage tank is between described ring-type screens flange and the outward flange of described end cap body.
7. electric motor end cap as claimed in claim 4, is characterized in that: described end cap body is also provided with the connecting hole worn for securing member, and described connecting hole is between described ring-type screens flange and described bearing pedestal.
8. the electric motor end cap as described in any one of claims 1 to 3, is characterized in that: described end cap body and described bearing pedestal integrated injection molding.
9. motor, comprises casing, it is characterized in that: also comprise electric motor end cap as described in any one of claim 1 to 8 and the bearing of bearing bore indoor as described in being located at, described electric motor end cap is located at one end of described casing.
10. booster pump, comprises the pump housing, it is characterized in that: also comprise motor as claimed in claim 9, and the described pump housing is fastenedly connected described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538379.7U CN204145159U (en) | 2014-09-18 | 2014-09-18 | Electric motor end cap and motor, booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538379.7U CN204145159U (en) | 2014-09-18 | 2014-09-18 | Electric motor end cap and motor, booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145159U true CN204145159U (en) | 2015-02-04 |
Family
ID=52421823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420538379.7U Active CN204145159U (en) | 2014-09-18 | 2014-09-18 | Electric motor end cap and motor, booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204145159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834739A (en) * | 2017-10-19 | 2018-03-23 | 珠海凯邦电机制造有限公司 | A kind of end cap, motor case and motor for motor |
-
2014
- 2014-09-18 CN CN201420538379.7U patent/CN204145159U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834739A (en) * | 2017-10-19 | 2018-03-23 | 珠海凯邦电机制造有限公司 | A kind of end cap, motor case and motor for motor |
| CN107834739B (en) * | 2017-10-19 | 2023-11-28 | 珠海凯邦电机制造有限公司 | End cover for motor, motor shell and motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |