CN100417888C - Lead fixing structure for step motor of refrigerator - Google Patents
Lead fixing structure for step motor of refrigerator Download PDFInfo
- Publication number
- CN100417888C CN100417888C CNB2004100188820A CN200410018882A CN100417888C CN 100417888 C CN100417888 C CN 100417888C CN B2004100188820 A CNB2004100188820 A CN B2004100188820A CN 200410018882 A CN200410018882 A CN 200410018882A CN 100417888 C CN100417888 C CN 100417888C
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- motor
- refrigerator
- outlet
- lead
- stepper motor
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The present invention relates to a lead wire fixing structure of a step motor of a refrigerator. An intercommunicating path is formed among storage spaces of the refrigerator, and an air flow regulator of the refrigerator utilizes the intercommunicating path to adjust cold air to flow. The present invention comprises a step motor, an outer shell of the motor, a plurality of lead wires and a wiring socket, wherein the step motor provides rotary power to a baffle plate which opens and closes the intercommunicating path. The outer shell of the motor is arranged on the step motor, and one side of the outer shell of the motor is provided with an outlet. The lead wires are connected with the step motor, and are led out of the outlet, and the lead wires provide a power supply and electric signals. The wiring socket seals a gap which is formed among the outlet and the lead wires. The lead wire fixing structure of a step motor of a refrigerator provided by the present invention utilizes the wiring socket to seal the outlet of which the lead wires connected with the step motor are led out, and thus, the present invention effectively avoids the external foreign matter with moisture entering the interior to cause the false running and the faults of the step motor.
Description
Technical field
The present invention relates to the refrigerator field.
Background technology
The invention relates to the lead fixing structure of use in refrigerator stepper motor, particularly about preventing the lead fixing structure of the use in refrigerator stepper motor that extraneous moisture is invaded.
Fig. 1 is the sectional side view of general refrigerator primary structure.Fig. 2 is the plane of the air damper structure of prior art design.Fig. 3 is the exploded perspective view of the stepper motor mounting structure of the air damper expressed among Fig. 2.
Expressed the main composition of general refrigerator among Fig. 1.As shown in the figure, in the internal fixation of the shell 11 that constitutes refrigerator 10 outward appearances inner casing 12, inner casing 12 forms the storage space of refrigerators 10 inside.Then, between shell 11 and inner casing 12, fill expanding foam solution, when expanding foam solution solidifies, become thermal insulation layer 13.
Be provided with the dividing plate 14 that the inner space is divided into refrigerating chamber 15 and refrigerating chamber 16 in inner casing 12 inner horizontal.For switch refrigerating chamber 15 and refrigerating chamber 16, be provided with refrigerating chamber chamber door 15a and refrigerating chamber chamber door 16a in a side of refrigerator 10.
Be provided with Air Blast fan 18 at the rear of refrigerating chamber 15, Air Blast fan 18 will carry out the cold air of heat exchange and deliver to refrigerating chamber 15 on evaporimeter 17.And, in the Machine Room 19 of lower end, refrigerator 10 back, be provided with compressor 20 and condenser 21, compressor 20 is compressed in the cold-producing medium of gasification on the evaporimeter 17, condenser 21 condensations are by compressor 20 refrigerant compressed, and are provided with the Machine Room fan 22 that dispels the heat for compressor 20 and condenser 21.
Be provided with in the side of dividing plate 14 and make the cold airflow that flows in the refrigerating chamber 15 intercommunication passage 23 to refrigerating chamber 16.Be provided with the air damper 30 (with reference to accompanying drawing 2) of regulating the cold air flow between refrigerating chamber 15 and the refrigerating chamber 16 according to the refrigerator temperature inside on the inside of intercommunication passage 23 or the end.
Express use in refrigerator air damper 30 in the accompanying drawing 2, expressed the stepper motor mounting structure of the air damper in the accompanying drawing 2 in the accompanying drawing 3.As shown in the figure, air damper 30 comprises: constitute the regulator body 31 of its framework, the rotary baffle plate 33 that is provided with in the inside of regulator body 31, and the stepper motor 35 of flap shutter 33.
Simultaneously, when switch refrigerating chamber chamber door 15a (with reference to accompanying drawing 1) or refrigerating chamber chamber door 16a (with reference to accompanying drawing 1), enter can contain in the middle of the outside air of refrigerating chamber 15 or refrigerating chamber 16 wetly.This moisture is after entering refrigerating chamber 15 or refrigerating chamber 16 inside, because inner lower temperature forms the globule on inner wall, and thus may frosting on inner wall.
In order to remove this frosting, on the side of baffle plate 33, be provided with heater 40.Then, on heater 40, connected the heater wire 41 that power supply is provided and transmits electric signal.
And the side adjacent with baffle plate 33 of regulator body 31 is provided with the stepper motor 35 of flap shutter 33.Stepper motor 35 starts flap shutter 33 according to the temperature that the temperature sensor that detects the refrigerator internal temperature (not having expression among the figure) is detected under the driving of controller.
With reference to accompanying drawing 3 as can be known, stepper motor 35 is arranged at the motor housing 37 inner installing space 37a inside that form.And, in order to seal the installing space 37a that stepper motor 35 is installed, motor cover 38 has been arranged on the motor housing 37 closely.
In the installing space 37a of motor housing 37, except being set, stepper motor 35 also is provided with several driven wheels 36 that the driving force of stepper motor 35 passed to baffle plate 33.And, the motor down-lead 39 that provides power supply to transmit electric signal simultaneously has been provided on stepper motor 35.
Under motor down-lead 39 and state that stepper motor 35 is connected, the outlet 37b that the side of motor down-lead 39 by motor housing 37 forms is drawn out to the outside.That is, motor down-lead 39 be clipped in the outlet 37b of motor housing 37 and motor cover 38 between fix in the space that forms, and be drawn out to the outside.
But the lead fixing structure of the use in refrigerator stepper motor of the prior art design of as above arranging has following problem:
As above, motor down-lead 39 is drawn out to the outside by the outlet 37b on the motor housing 37.At this moment, fixing on the side that is clipped in outlet 37b and motor cover 38 that motor down-lead 39 will be rigid.
But, when motor down-lead 39 is fixed on outlet 37b and the motor cover 38, between side of outlet 37b and motor cover 38 and motor down-lead 39, can form small slit.Thus, by these slits, the foreign matter of extraneous moisture etc. will enter the inside of motor housing 37 and motor cover 38, damages stepper motor 35.
Summary of the invention
Technical problem to be solved by this invention is, a kind of lead fixing structure of use in refrigerator stepper motor is provided, and can prevent effectively that extraneous foreign matter from entering the inside of motor.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the lead fixing structure of use in refrigerator stepper motor, in the use in refrigerator air damper that utilizes the intercommunication passages regulate cold air flow that forms between the storage space of refrigerator, the lead fixing structure of use in refrigerator stepper motor comprises that the baffle plate to switch intercommunication passage provides the stepper motor of rotational power; Stepper motor is set, and the motor housing of outlet is set in a side; Be connected several motor down-leads that power supply and electric signal are provided and outwards draw by outlet with stepper motor; The junction block that also comprises the slit that forms between sealing outlet and the motor down-lead.
Described fixed structure also is provided with the mounting structure of the position of link seat in the inboard of outlet.
The moulding of described junction block by cast synthetic resin on the mould that inserts lead-in wire.
Described junction block is pressed in outlet.
The invention has the beneficial effects as follows: as can be known by above explanation, the lead fixing structure of the use in refrigerator stepper motor of the present invention's design is utilized junction block to seal and is drawn the outlet that is connected the motor down-lead on the stepper motor, thereby effectively avoided entering into inside, avoided the mistake running and the fault of the stepper motor that causes owing to contain the extraneous foreign matter of moisture.
Description of drawings
Fig. 1 is the sectional side view of general refrigerator primary structure.
Fig. 2 is the plane of the air damper structure of prior art design.
Fig. 3 is the exploded perspective view of the stepper motor mounting structure of the air damper expressed among Fig. 2.
Fig. 4 is the plane of use in refrigerator air damper of embodiment of the motor down-lead fixed structure of the use in refrigerator stepper motor that designs of the present invention.
Fig. 5 is the exploded perspective view of the stepper motor mounting structure of air damper among Fig. 4.
" to the explanation of the corresponding symbol of major part in the accompanying drawing "
30: air damper 31: the air damper main body
33: baffle plate 35: ' stepper motor
36: driven wheel 37: motor housing
37a: installing space 37b: outlet
38: motor cover 39: motor down-lead
40: heater 41: heater wire
57c: mounting structure 59a: junction block
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 4 is the plane of use in refrigerator air damper of embodiment of the motor down-lead fixed structure of the use in refrigerator stepper motor that designs of the present invention.Fig. 5 is the exploded perspective view of the stepper motor mounting structure of air damper among Fig. 4.
Expressed the structure of the use in refrigerator air damper of the present invention's design among Fig. 4.As shown in the figure, use in refrigerator air damper 30 is arranged on the inside or one end of the cold air intercommunication passage 23 between refrigerating chamber and the refrigerating chamber.
Be provided with heater 40 in the side of baffle plate 33.The main effect of heater 40 is to remove owing to contain the outside air of moisture to flow into the frost that refrigerating chamber 15 and refrigerating chamber 16 produce, and has connected heater wire 41 in the above, provides power supply and electric signal to heater 40 thus.
Simultaneously, under the state that motor housing 37 and motor cover 38 are set, stepper motor 35 is arranged at the side of regulator body 31, the mounting structure of this stepper motor on accompanying drawing 5 detailed expression come out.As shown in the figure, stepper motor 35 is installed on the motor housing 37.
The inside of motor housing 37 has formed the installing space 37a of stepper motor 35 has been installed, and also is provided with several driven wheels 36 in the inside of installing space 37a except stepper motor 35.The main effect of driven wheel 36 is that the driving force with stepper motor 35 passes on the baffle plate 33 (with reference to accompanying drawing 4), thus selection that can be suitable its quantity is installed.
And, motor cover 38 is combined on the motor housing 37 closely, form installing space 37a thus, and on a side of motor housing 37, formed the outlet 37b that draws motor down-lead 39.The main effect of motor down-lead 39 is power supply to be provided and to transmit electric signal to stepper motor 35, is connected on the stepper motor 35 by outlet 37b.
Be provided with junction block 59a at outlet 37b place.The main effect of junction block 59a is to seal the slit that forms between the another side of outlet 37b and motor cover 38 and the motor down-lead 39, can come moulding by cast synthetic resin on the mould that inserts motor down-lead 39, insert the junction block 59a that forms under the state of motor down-lead 39 in inside and be pressed in outlet 37b fixing.
Simultaneously, the inside of motor housing 37 outlet 37b forms mounting structure 57c.The main effect of mounting structure 57c is the position of link seat 59a, and the housing of junction block 59a is clipped in the space of mounting structure 57c formation.
Thus, junction block 59a can be to the inside or outside not the moving of motor housing 37 under fixing state.And the motor down-lead 39 in the junction block 59a can or outsidely not move and is fixed equally to the inside of motor housing 37.
Among the embodiment in the drawings, junction block 59a is by the moulding inserting cast synthetic resin on the mould of motor down-lead 39, but does not require and all adopt this method.That is, if can seal the slit that forms between the another side of outlet 37b and motor housing 38 and the motor down-lead 39, then can make junction block 59a and motor down-lead 39 respectively after, insert motor down-lead 39 again.
Below, having as above with reference to accompanying drawing 4 and 5 pairs, fixation procedure and the step of the embodiment of the use in refrigerator stepper motor lead fixing structure of the present invention of structure describe.
At first, the motor down-lead 39 that is connected on the stepper motor 35 is inserted in the mould, and on the mould that inserts motor down-lead 39, pours into a mould synthetic resin, thereby be formed in the inner junction block 59a that inserts motor down-lead 39.
Then, junction block 59a is pressed in the outlet 37b of motor housing 37, so that motor down-lead 39 is fixed among the outlet 37b.At this moment, junction block 59a is inserted in the space that the mounting structure 57c of outlet 37b forms, and the another side of outlet 37b and motor cover 38 and the slit between the motor down-lead 39 will be sealed by junction block 59a.
Simultaneously, the use in refrigerator air damper 30 that comprises stepper motor 35 is arranged in the intercommunication passage 23 (with reference to accompanying drawing 1), regulates the refrigerating chamber 15 of refrigerator and the cold air flow between the refrigerating chamber 16 thus.Stepper motor 35 driven by controller (not expression among the figure), and under the driving of stepper motor 35, baffle plate 33 rotates according to the temperature that temperature sensor detected that detects the refrigerator internal temperature, and Open from This Side or sealing intercommunication passage 23.
At this moment, the slit that forms between the another side of outlet 37b and motor cover and the motor down-lead 39 is sealed by junction block 59a.Thus, can avoid the extraneous air that contains moisture to flow into the inside of motor housing 37 and motor cover 38, thereby protect stepper motor 35 injury-free.
And, in the space of junction block 59a because of the mounting structure 57c formation that is clipped in outlet 37b, therefore fixed the position of junction block 59a.And, can also prevent to be provided with inside or outside move of the motor down-lead 39 of junction block 59a to motor housing 37.
By above explanation as can be known, major technology guiding theory of the present invention is the junction block that is equipped with the slit that forms between an outlet that can seal the motor down-lead of drawing air damper and the motor down-lead.
Claims (1)
1. the lead fixing structure of a use in refrigerator stepper motor, in the use in refrigerator air damper that utilizes the intercommunication passages regulate cold air flow that forms between the storage space of refrigerator, the lead fixing structure of use in refrigerator stepper motor comprises that the baffle plate to switch intercommunication passage provides the stepper motor of rotational power; Stepper motor is set, and the motor housing of outlet is set in a side; Be connected several motor down-leads that power supply and electric signal are provided and outwards draw by outlet with stepper motor; It is characterized in that: the junction block that also comprises the slit that forms between sealing outlet and the motor down-lead, fixed structure also is provided with the mounting structure of the position of link seat in the inboard of outlet, junction block moulding by cast synthetic resin on the mould that inserts lead-in wire, junction block is pressed in outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100188820A CN100417888C (en) | 2004-04-12 | 2004-04-12 | Lead fixing structure for step motor of refrigerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100188820A CN100417888C (en) | 2004-04-12 | 2004-04-12 | Lead fixing structure for step motor of refrigerator |
Publications (2)
Publication Number | Publication Date |
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CN1683866A CN1683866A (en) | 2005-10-19 |
CN100417888C true CN100417888C (en) | 2008-09-10 |
Family
ID=35263294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100188820A Expired - Fee Related CN100417888C (en) | 2004-04-12 | 2004-04-12 | Lead fixing structure for step motor of refrigerator |
Country Status (1)
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CN (1) | CN100417888C (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2054529U (en) * | 1989-05-29 | 1990-03-14 | 叶君良 | Protecting device for refrigerator base |
US5490395A (en) * | 1994-11-21 | 1996-02-13 | Whirlpool Corporation | Air baffle for a refrigerator |
CN1207490A (en) * | 1997-07-31 | 1999-02-10 | 三星电子株式会社 | Refrigerator having device for opening/closing cool air discharge ports |
JP2003050079A (en) * | 2001-08-03 | 2003-02-21 | Hitachi Ltd | Cooling apparatus |
-
2004
- 2004-04-12 CN CNB2004100188820A patent/CN100417888C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2054529U (en) * | 1989-05-29 | 1990-03-14 | 叶君良 | Protecting device for refrigerator base |
US5490395A (en) * | 1994-11-21 | 1996-02-13 | Whirlpool Corporation | Air baffle for a refrigerator |
CN1207490A (en) * | 1997-07-31 | 1999-02-10 | 三星电子株式会社 | Refrigerator having device for opening/closing cool air discharge ports |
JP2003050079A (en) * | 2001-08-03 | 2003-02-21 | Hitachi Ltd | Cooling apparatus |
Also Published As
Publication number | Publication date |
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CN1683866A (en) | 2005-10-19 |
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C06 | Publication | ||
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 |