CN109525058A - A kind of pump - Google Patents
A kind of pump Download PDFInfo
- Publication number
- CN109525058A CN109525058A CN201710837770.5A CN201710837770A CN109525058A CN 109525058 A CN109525058 A CN 109525058A CN 201710837770 A CN201710837770 A CN 201710837770A CN 109525058 A CN109525058 A CN 109525058A
- Authority
- CN
- China
- Prior art keywords
- shell
- power device
- boss
- pump
- pump according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a kind of pumps, including the pump housing and motor, the motor includes shell, the stator component being arranged in the housing cavity, rotor part and the circuit board with power device for being fixed on the stator component, it is characterized in that, the shell includes bottom and cylindrical portion, the power device is towards the bottom of the shell, the position that the inner surface of the housing bottom corresponds to the power device is equipped with boss, radiating component is equipped between the boss and the power device, the radiating component abuts respectively with the boss, the power device.Pump provided by the present invention improves the heat dissipation effect of pump, guarantees its reliability service.
Description
Technical field
The present invention relates to fluid control technology fields, more particularly to a kind of pump.
Background technique
Pump is to force heat carrier liquid phase in heat carrier furnace, heating equipment and its pipe-line system to flow for generating power
Mechanical equipment.Along with modern industry and economic rapid development, pump is widely used in household and commercial kitchen area.?
On small-power household and commercial pump, because of installation dimension requirement, circuit board is built in inside motor, realizes integration.
The power device of circuit board, calorific value is larger when work, and working under high temperature environment for a long time can accelerating power device
Aging eventually leads to power device failure, influences pump operation performance.
In view of this, how to improve pump heat dissipation performance, guarantee pump reliability service be those skilled in the art at present urgently
The technical issues of solution.
Summary of the invention
The object of the present invention is to provide a kind of pumps, are optimized, are improved by the shell structure to motor in pump
The heat dissipation performance of pump ensure that the reliability service of pump.
To achieve the above object, the present invention provides a kind of pump, including the pump housing and motor, the motor includes shell, sets
Set the stator component in the housing cavity, rotor part and the circuit with power device for being fixed on the stator component
Plate, which is characterized in that the shell includes bottom and cylindrical portion, and the power device is towards the bottom of the shell, the shell
The position that the inner surface of body bottom corresponds to the power device is equipped with boss, is equipped with and dissipates between the boss and the power device
Hot component, the radiating component abut respectively with the boss, the power device.
Boss is arranged by the position of the power device on the inner surface opposing circuit board of electric machine casing bottom in the present invention,
And radiating component is set between boss and power device, and radiating component abuts respectively with the rwo.In this way, operating work in pump
When making, the high temperature heat that the power device on circuit board generates can pass to shell by radiating component, due to dissipating for shell
Heat area is big, and radiating efficiency is high, and the heat dissipation effect that can greatly promote pump is arranged such, and guarantees the reliability service of pump, improves simultaneously
The service life of power device and circuit board.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pump described in first embodiment；
Fig. 2 is enlarged diagram at I in Fig. 1；
Fig. 3 is enlarged diagram at A in Fig. 2；
Fig. 4 provides the structural schematic diagram of the electric machine casing of pump for the present invention；
Fig. 5 is the structural schematic diagram of pump described in second embodiment.
Fig. 1 is into Fig. 5:
Motor 1, shell 2, bottom 21, cylindrical portion 22, inner surface 211, outer surface 212；
Boss 23, end face 231, cylindrical inner portion 24, groove 25, rib 251, cooling fin 26；
Stator component 3, coil 31, annular support part 32, insulating layer 321, positioning convex platform 322；
Column 34, stator core 35；
Rotor part 4, magnet rotor 41, armature spindle 42, bearing 43, end cap 44, O-ring 45；
Circuit board 5, power device 51, pin 52；
Radiating component 6, encapsulated member 7, the pump housing 8.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Herein, the terms such as " upper and lower, inside and outside " are positional relationships based on the figure and establishment, with reference to the accompanying drawings
The difference in shown product orientation, corresponding direction and positional relationship are also possible to change therewith, therefore, can not be managed
Solution is the absolute limit to protection scope.The axis side of the motor for axially and radially referring to pump provided by the present invention described below
To with diameter direction.Power device described below refers to the bigger electronic component of output power, during the work time
It can generate heat, generate heat.
Embodiment 1:
Referring to Figure 1, Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 1 is the structural schematic diagram of pump described in the present embodiment, Fig. 2 Fig. 1
Enlarged diagram at middle I, Fig. 3 are the enlarged diagram in Fig. 2 at A, and Fig. 4 provides the structure of the electric machine casing of pump for the present invention
Schematic diagram.
As shown in Figure 1 and Figure 2, pump provided in this embodiment, including motor 1, the pump housing 8, motor 1 and the pump housing 8 are connected by screw
It connects, naturally it is also possible to be connected by modes such as riveting, ultrasonic bonding or laser weldings.
Motor 1 includes shell 2, stator component 3, rotor part 4, circuit board 5.
Stator component 3 is fixed in shell 2, including the annular support part 32 for 31 winding of coil, annular support part
32 include for fixed stator iron core 35 insulating layer 321, for the positioning of the inner sidewall of shell 2 positioning convex platform 322 and
Column 34 for being fixed on wiring board 5 on stator component 3.
Rotor part 4 include magnet rotor 41, with the armature spindle 42 of 41 integrally connected of magnet rotor, bearing 43, end cap 44, O-shaped
Circle 45.42 one end of armature spindle is arranged with bearing 43, and rotatably bearing 43 is fixed on armature spindle 42 by end cap 44, O
Type circle 45 is set in the groove formed on end cap 44.
Circuit board 5 include power device 51, the pin 52 being fixed by welding in power device 51 on circuit board 5, with
And cooperate fixed mounting hole for the column 34 with stator component 3.52 one end of pin is electrically connected power device 51, other end electricity
Connect the integrated circuit on circuit board 5.
As shown in figure 4, shell 2 is formed by the good aluminum alloy material of heating conduction by die casting.In this way, can make
The heat that the heat and power device that pump conveying high temperature fluid generates issue when working is distributed by shell in time.Shell
2 is generally cup-shaped, including bottom 21, cylindrical portion 22, and bottom 21 has the inner surface 211 positioned at enclosure interior, is located at outside shell
The outer surface 212 in portion.Vertical integrally casting is provided with boss 23 on the inner surface 211 of bottom 21, and certain boss 23 can also lead to
The modes such as welding are crossed to be fixedly connected with shell 2.It is provided with radiating component 6 between boss 23 and the power device 51 of circuit board 5, it should
Radiating component 6 is specially heat-conducting silicone grease paste etc..When it is implemented, the radiating component 6 can first be coated in power device 51
Upper surface or boss 23 end face 231 on, when assembly by the extruding of power device 51 and boss 23 to fill this two
The gap formed between person.It is of course also possible to both coat, as long as can achieve the effect that heat dissipation is ok.So set, can
The heat issued when power device is worked passes to shell by radiating component, and is radiated outward by shell.
It is corresponded on the outer surface 212 of bottom 21 and opens up fluted 25 at boss 23, herein preferably flat-bottom slot, the groove 25
It is integrally formed, can also be shaped by other modes such as cuttings when can be cast with shell 2.Preferably, it is set in groove 25
There is the vent rib 251 for being an integral structure with the shell 2 and being highly less than or equal to 25 depth of groove, the quantity of rib is 1
More than a, in this way, the heat dissipation area of shell can be increased, be conducive to radiate.When it is implemented, those skilled in the art can integrate
The many factors such as cost, difficulty of processing, practical heat dissipation effect select the quantity for setting the concrete shape of groove, quantity and rib.
The heat on boss 23 is transmitted to by radiating component 6 by power device 51, is carried out first by groove 25 and vent rib 251 scattered
Heat, after-heat then continue to be radiated by shell 2 as radiator, due to groove 25 and vent rib 251 have it is biggish
Heat dissipation area can adequately be exchanged heat with air, therefore have significant heat dissipation effect.
Cylindrical portion 22 is provided with cooling fin 26 in extending radially outwardly for motor 1, the cooling fin 26 shell 2 cast when with
The cylindrical portion 22 of shell is integrally formed.Since the heat dissipation area of cooling fin 26 is sufficiently large, the integral heat sink effect of pump can be greatly promoted
Fruit.Cooling fin 26 is set by the outer surface 212 in bottom 21, it is possible to increase heat dissipation area accelerates radiating efficiency, keeps pump conveying high
The heat that the heat and power device that warm fluid generates issue when working passes through shell in time and radiates outward, ensure that the work of pump
Make performance to stablize.
Specifically, radiating component 6 coats whole end faces 231 as shown in Fig. 2, the end face 231 of boss 23 is set as plane.
By above-mentioned design, it can be ensured that effective transmission area of heat maximizes, and the heat for issuing power device 51 when working is more
It quickly is transferred to shell 2 more effectively by radiating component 6, then is radiated outward from shell 2, radiating efficiency is improved, ensure that
The stable working performance of pump.
Further, if boss 23 and power device 51 are T at a distance from 1 axis direction of motor, that is to say, that the two it
Between gap be T, then T meets 0.2mm >=T >=0.05mm.When it is implemented, as shown in Fig. 2, with the insulation on stator component 3
The upper surface of layer 321 is benchmark face, is positioned by Special tooling clamp, controls the upper surface of power device 51 to insulating layer 321
The distance of upper surface be A, while the distance for controlling the end face 231 of boss 23 to the upper surface of insulating layer 321 is B, i.e. B-A=
T, that is to say, that control the residual quantity of B and A in the range of 0.05~0.2mm.So set, being provided to coating radiating component 6
Reasonable space.If T be less than 0.05mm, coat the insufficient space of radiating component 6, that is to say, that be coated in boss 23 with
The amount of radiating component 6 between power device 51 is insufficient, cannot give full play to its heat dissipation effect；Conversely, if T is greater than 0.2mm,
The radiating component 6 of required coating is more, is unfavorable for save the cost, and since T is excessive, radiating efficiency is slack-off, and heat dissipation effect becomes
Difference, the heat for being unfavorable for issuing when power device 51 works are timely transmitted to shell 2.
In the present embodiment, on the basis of the inner surface 211 of the bottom of shell 2 21, if boss 23 is higher by inner surface 211
Height is H, then H is arranged to H >=2mm.It is arranged such, it can be ensured that the electric clearance between shell 2 and the pin 52 of circuit board 5 exists
In safe range, guarantee safety.
Further, if most short creepage distance between the edge of end face 231 and pin 52 is L, then L be arranged to L >=
4mm.Creepage distance refers to the most short distance along insulating surface measurement on two adjacent conductors or a conductor and adjacent motor casing surface
From.Specific in the present embodiment, as shown in figure 3, set boss 23 end face 231 and power device 51 1 axis direction of motor away from
From for a, i.e. T=a, the shortest distance of the end face 231 of boss 23 and the upper surface edge of power device 51 in 1 diameter direction of motor is
B, the upper surface edge and pin of power device 51 are c in the 1 axis direction shortest distance of motor, then most short creepage distance L=a+b+
c.It is arranged such, it can be ensured that the most short creepage distance between pin 52 and shell 2 in safe range, guarantees safety.
Embodiment 2:
It is not repeated to describe with identical content in the first specific embodiment in the present embodiment, mainly to the present embodiment and
The difference of one specific embodiment is illustrated.The pump and the main distinction of the first specific embodiment of the present embodiment further include by
Circuit board 5 and the affixed integral encapsulated member 7 of shell 2.Since encapsulated member 7 has insulating properties, in this embodiment to boss
23 are higher by the edge of the end face 231 of the distance H of the inner surface 211 of the bottom 21 of shell 2 and boss 23 and drawing on circuit board 5
The numberical range of most short creepage distance L between foot 52 is wider than embodiment 1, can be not especially limited.
As shown in figure 5, clearly to show this programme and the difference of first embodiment contacts, the component and structure of said function
Same reference numerals are all made of to be indicated.
The bottom of the shell is equipped with along the axial tubular wall portion extended to the housing cavity of motor, the tubular wall portion
Cyclic annular accommodating chamber is formed between the cylindrical portion of the shell, the circuit board is encapsulated in the cyclic annular receiving by the encapsulated member
It is intracavitary
In the present solution, encapsulated member 7 is to be solidified to be formed by injection molding material.The center of the bottom 21 of shell 2 is equipped with along electricity
The axial tubular wall portion 24 extended to 2 inner cavity of shell of machine 1, the tubular wall portion 24 be hollow form, can be set in rotor part 3
O-ring 45 on end cap 44 seals cooperation, and end cap 44 can insert the tubular wall portion 24 and rotatable relative.In this way, tubular wall portion
Cyclic annular accommodating chamber is formd between 24 and the cylindrical portion 22 of shell 2.When it is implemented, will pump be inverted, setting tubular wall portion 24 away from
The height of inner surface 211 from bottom 21 is more than or equal to circuit board 5 at a distance from the inner surface 211 of bottom 21.In this way,
When injecting injection molding material in the ring-type accommodating chamber, it can be ensured that injection molding material floods whole circuit board 5, i.e., the packet formed after injection molding material solidification
The power device 51 of circuit board 5 can be entirely encapsulated in cyclic annular accommodating chamber by envelope body 7.Since the thermal conductivity of encapsulated member is greater than sky
Gas, the heat issued when so set, fast and effeciently heat and power device that pump conveying high temperature fluid generates can work
Amount passes to shell in time, then is radiated outward by shell.
Based on first embodiment, second embodiment, the present invention is by corresponding on the inner surface 211 of the bottom of shell 2 21
Boss 23 is arranged in the position of the power device 51 of circuit board 5, and radiating component 6 is arranged between boss 23 and power device 51, and
And the radiating component 6 abuts respectively with boss 23, power device 51.It is issued when so set, power device 51 can work
Heat passes to shell 2 by radiating component 6 in time, and is radiated outward by shell 2.To greatly improve the heat dissipation effect of pump
Fruit, guarantees the reliability service of pump, while also improving the service life of power device and circuit board.
Pump provided by the present invention is described in detail above.Herein only for specific embodiments of the present invention into
Elaboration is gone, the explanation of embodiments above is merely used to help understand method and its core concept of the invention.It should refer to
It out, for those skilled in the art, should if can also make under the premise of not departing from feature of the present invention
Improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a kind of pump, including the pump housing and motor, the motor include shell, the stator component being arranged in the housing cavity,
Rotor part and the circuit board with power device for being fixed on the stator component, which is characterized in that the shell includes bottom
Portion and cylindrical portion, the power device correspond to the power device towards the bottom of the shell, the inner surface of the housing bottom
The position of part be equipped with boss, between the boss and the power device be equipped with radiating component, the radiating component with it is described convex
Platform, the power device abut respectively.
2. pump according to claim 1, which is characterized in that the end face of the boss is plane, the radiating component covering
All end faces.
3. pump according to claim 2, which is characterized in that set the boss and the power device in the motor shaft side
It is T to distance, then meets 0.2mm >=T >=0.05mm.
4. pump according to claim 3, which is characterized in that set the boss be higher by the housing bottom inner surface away from
From for H, then meet H >=2mm.
5. pump according to claim 4, which is characterized in that set between the edge of the end face and the pin most short climbs
Electrical distance is L, then meets L >=4mm.
6. pump according to claim 3, which is characterized in that further include encapsulated member, the bottom of the shell is equipped with along motor
The axial tubular wall portion extended to the housing cavity forms cyclic annular hold between the tubular wall portion and the cylindrical portion of the shell
Receive chamber, the circuit board is encapsulated in the cyclic annular accommodating chamber by the encapsulated member.
7. pump described in -6 according to claim 1, which is characterized in that the corresponding boss in the outer surface of the bottom of the shell
Position be equipped with groove.
8. pump according to claim 7, which is characterized in that vent rib is arranged in the groove.
9. pump according to claim 7, which is characterized in that the shell is made of aluminum alloy material, the shell
Radial side is equipped with the cooling fin of integrally casting forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710837770.5A CN109525058A (en) | 2017-09-18 | 2017-09-18 | A kind of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710837770.5A CN109525058A (en) | 2017-09-18 | 2017-09-18 | A kind of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109525058A true CN109525058A (en) | 2019-03-26 |
Family
ID=65769253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710837770.5A Pending CN109525058A (en) | 2017-09-18 | 2017-09-18 | A kind of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109525058A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188296A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Dc brushless pump |
| CN101586868A (en) * | 2008-05-20 | 2009-11-25 | 浙江三花股份有限公司 | Liquid discharging device |
| CN102347676A (en) * | 2010-07-30 | 2012-02-08 | 浙江三花股份有限公司 | Direct-current brushless motor and drainage pump |
| CN202634185U (en) * | 2012-05-31 | 2012-12-26 | 中山大洋电机制造有限公司 | Plastic package motor |
-
2017
- 2017-09-18 CN CN201710837770.5A patent/CN109525058A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005188296A (en) * | 2003-12-24 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Dc brushless pump |
| CN101586868A (en) * | 2008-05-20 | 2009-11-25 | 浙江三花股份有限公司 | Liquid discharging device |
| CN102347676A (en) * | 2010-07-30 | 2012-02-08 | 浙江三花股份有限公司 | Direct-current brushless motor and drainage pump |
| CN202634185U (en) * | 2012-05-31 | 2012-12-26 | 中山大洋电机制造有限公司 | Plastic package motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190326 |