CN203224723U - Defrosting timing device - Google Patents
Defrosting timing device Download PDFInfo
- Publication number
- CN203224723U CN203224723U CN 201320117824 CN201320117824U CN203224723U CN 203224723 U CN203224723 U CN 203224723U CN 201320117824 CN201320117824 CN 201320117824 CN 201320117824 U CN201320117824 U CN 201320117824U CN 203224723 U CN203224723 U CN 203224723U
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- CN
- China
- Prior art keywords
- cam
- timing device
- rotor
- contact spring
- synchronous motor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a defrosting timing device, which comprises a shell, a micro synchronous motor coil stator positioned in the shell, a motor rotor, a transmission gear set, a cam and a contact reed group, wherein the micro synchronous motor coil stator and the motor rotor are arranged in the shell; the transmission gear set is used for driving the cam to rotate; the contact reed group which is pressed against the cam is switched on and switched off alternatively; and the contact reed group is connected with a refrigerator refrigeration compressor and a defrosting heating pipe respectively.
Description
Technical field
The utility model relates to a kind of accessory of household electrical appliance, specifically is a kind of defrost timing device that is applied to control on the refrigerator refrigeration compressor and defrost heating tube.
Background technology
At present, common refrigerator timing device on the market has two kinds of electronic type and mechanical types, generally be installed in the congealer of low temperature or compressor that high temperature is moist near.Electronic type defrost timing device cost height is subjected to the influence of environment for use, and failure rate is also higher.Mechanical type timing device failure rate is low, easy to maintenance, but the most volume of mechanical type timing device on the market is bigger, and the drive motor volume is also bigger, the assembly technology complexity, and cost is higher.
The utility model content
The purpose of this utility model is, provide a kind of cheaply, the compact conformation assembly technology simply controls the small-sized timing device of refrigerator refrigeration compressor and defrost heating tube.
A kind of defrost timing device comprises housing, is positioned at small synchronous motor coil stator, rotor, driving gear set, cam, the contact spring group of housing; Described small synchronous motor coil stator, rotor are installed in the housing, drive the cam rotation by driving gear set, the contact spring group that is resisted against on the cam alternately switches on and off, and the contact spring group connects refrigerator refrigeration compressor and defrost heating tube respectively.
Described small synchronous motor coil stator one end is connected with safety electric capacity, and the other end is connected with the contact spring group by brace.
Described rotor top is provided with the check ring that makes the rotor orientation rotation.
Described contact spring group is resisted against on the cam contour surface.
After adopting above structure, the utility model compared with prior art has the following advantages:
1, the more compact structure overall volume is littler, when particularly being installed in congealer inside, can save the space;
2, small synchronous motor stator, rotor are directly installed in the housing, save cost;
3, small synchronous motor coil stator, rotor are directly installed in the housing, and structure is simpler, has improved efficiency of assembling.
Description of drawings
Shown in Figure 1 is the structural representation of the utility model gear set, reed group;
Shown in Figure 2 is the structural representation of the utility model motor part;
Shown in Figure 3 is the utility model section deployed configuration synoptic diagram;
Shown in Figure 4 is the utility model defrost heating tube connection work synoptic diagram;
Shown in Figure 5 is the utility model refrigeration compressor connection work synoptic diagram.
1,1# terminal; 2,2# terminal; 3,3# terminal; 4,4# terminal;
5, safety electric capacity; 6, small synchronous motor coil stator 7, brace; 8, stator piece;
9, rotor; 10, check ring; 11, gear set; 12, cam.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing, in the example of described embodiment from start to finish identical or similar label represent identical or similar parts or the parts with identical or similar functions.The embodiment that describes below is exemplary, only is used for explaining this patent, and can not be interpreted as the restriction to this patent.
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
By Fig. 1 to the utility model refrigerator shown in Figure 5 with the structural representation of timing device as can be known, described small synchronous motor coil stator 6, stator piece 8, rotor 9 is installed in the housing, driving cam 12 by driving gear set 11 is rotated counterclockwise, the contact spring group that is resisted against on the cam alternately switched on and off by the designed time period, describedly refer to according to season by the designed time period, the timing device that geographic position etc. are designed just can be realized the adjustment to the time period, contact spring group 2# terminal connects the refrigerator refrigeration compressor, and the 4# terminal connects the defrost heating tube.
Described small synchronous motor coil stator 6 one ends are connected with safety electric capacity 5, and the other end is connected with the contact spring group by brace 7.
Described rotor top is provided with the check ring 10 that makes rotor 9 directed rotations.
Described 2# terminal is resisted against on the cam ring contour surface of cam 12.
Described 3# terminal is resisted against on the external cam contour surface of cam 12.
External power supply one end connects the 1# terminal, and the 1# terminal connects a utmost point 51 of safety electric capacity 5, and another utmost point 52 of safety electric capacity connects a utmost point 61 of small synchronous motor coil stator 6.
External power supply other end 3# terminal, the 3# terminal is connected with another utmost point 62 of small synchronous motor coil stator 6 by brace 7, forms the loop.
Energising small synchronous motor coil stator 6 produces rotating magnetic field by stator piece 8, and rotor 9 is rotated counterclockwise after by check ring 10 orientations, and through gear set 11 multi-stage speed-reducing transmissions, cam 12 is rotated counterclockwise.
When cam 12 rotated to Fig. 4 position, 2# terminal 2 disconnected with 3 # terminal 3, and 4# terminal 4 is connected with 3# terminal 3, was defrost heating tube duty this moment.
When cam 12 rotated to Fig. 5 position, 2# terminal 2 was connected with 3 # terminal 3, and 4# terminal 4 disconnects with 3# terminal 3, and be the refrigeration compressor duty this moment.
As long as the external power supply of device when given, 12 continual being rotated counterclockwise of cam, 360 ° of every rotations, refrigeration compressor and defrost heating tube replace connection work 1 time, finish the function of refrigerator defrost.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of this patent.
Claims (5)
1. defrost timing device comprises housing, is positioned at small synchronous motor coil stator, rotor, driving gear set, cam, the contact spring group of housing; It is characterized in that: described small synchronous motor coil stator, rotor are installed in the housing, drive the cam rotation by driving gear set, the contact spring group that is resisted against on the cam alternately switches on and off, and the contact spring group connects refrigerator refrigeration compressor and defrost heating tube respectively.
2. a kind of defrost timing device according to claim 1, it is characterized in that: described small synchronous motor coil stator one end is connected with safety electric capacity, and the other end is connected with the contact spring group by brace.
3. a kind of defrost timing device according to claim 1 is characterized in that: be provided with the check ring that makes the rotor orientation rotation above the described rotor.
4. a kind of defrost timing device according to claim 1, it is characterized in that: described contact spring group is resisted against on the cam contour surface.
5. a kind of defrost timing device according to claim 3, it is characterized in that: described rotor is rotated counterclockwise after by the check ring orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117824 CN203224723U (en) | 2013-03-14 | 2013-03-14 | Defrosting timing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117824 CN203224723U (en) | 2013-03-14 | 2013-03-14 | Defrosting timing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224723U true CN203224723U (en) | 2013-10-02 |
Family
ID=49251723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320117824 Expired - Fee Related CN203224723U (en) | 2013-03-14 | 2013-03-14 | Defrosting timing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203224723U (en) |
-
2013
- 2013-03-14 CN CN 201320117824 patent/CN203224723U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20190314 |