CN101593636A - The pull chain switch that is used for the ceiling fan d.c. motor - Google Patents
The pull chain switch that is used for the ceiling fan d.c. motor Download PDFInfo
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- CN101593636A CN101593636A CNA2008100533320A CN200810053332A CN101593636A CN 101593636 A CN101593636 A CN 101593636A CN A2008100533320 A CNA2008100533320 A CN A2008100533320A CN 200810053332 A CN200810053332 A CN 200810053332A CN 101593636 A CN101593636 A CN 101593636A
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- spin block
- spill spin
- operand
- pushing part
- pull chain
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Abstract
A kind of pull chain switch that is used for the ceiling fan d.c. motor, it is in the inner pivot of a upper shell one priming dish to be arranged, one flexible member is located between priming dish and the upper shell, and on the priming dish, be connected to a slide fastener, one end of one spill spin block is formed with and the corresponding operand of inclined thrust surface, and make inclined thrust surface be unidirectional clip on operand, but and the unidirectional drive spill spin block carry out the circumference rotation of a segmentation, one lower house covers mutually with upper cover body, and lower house has an accommodation space for being pivoted spill spin block; One sheet metal is arranged on the spill spin block, sheet metal is formed with four along the spill spin block periphery and is the conductive junction point that isogonism distributes mutually, and pushing part drives spill spin block circumference rotation each time, the electrical contact that each conductive junction point on the spill spin block and electroconductive elastic sheet in the lower house produce interruption.The present invention reaches the purpose that produces immediate current, reduces wear, and prolongs the useful life of each conductive junction point, can avoid producing illusion in the operation and humanized.
Description
Technical field
The present invention relates to a kind of pull chain switch that is used for the ceiling fan d.c. motor.
Background technology
Ceiling fan with general supply alternating current, it is to utilize the mode of electric power without interruption to implement, to trigger the rotating speed that starts ceiling fan or change ceiling fan, as shown in Figure 5, the expression one existing pull chain switch that electric power can be provided continuously, mainly be to dock mutually with a lower house 72 by a upper shell 71 to form, be to be provided with a priming dish 73 in upper shell 71, one slide fastener 74, one torque spring 75 and a gland 76, wherein priming dish 73 is to be hubbed at upper shell 71 central authorities with torque spring 75, and connect in priming dish 73 and to establish this slide fastener 74, and protrude out the pushing part 76 on four tool inclined-planes in priming dish 73 1 side central authorities; So, is axle by drawing the slide fastener 74 of pulling can make priming dish 73 with upper shell 71 centers, and drive the distance of these pushing parts 76 towards the circumferencial direction rotation and the pushing part that advances, opposite, when decontroling slide fastener 74, then can each pushing part 76 be rotated and the distance of slow astern pushing part 76 towards another circumferencial direction by torque spring 75.
Aforementioned lower house 72 has a spill spin block 77, two connect the electroconductive elastic sheet 78 of establishing electric wire, spill spin block 77 is to be hubbed at middle position in the lower house 72, spill spin block 77 tools one sheet metal 79, and form circuit closing contacts 81 respectively in sheet metal 79 sides, four operands 83 that spill spin block 77 outer ends are provided with corresponding aforementioned pushing part 76 are provided with, and electroconductive elastic sheet 78 is to be close to spill spin block 77 2 side settings, so, but by advance each operand 83 of jacking force pushing tow in when rotation of aforementioned each pushing part 76, make operand 83 can rotate 1/4th circumferential distance towards single direction, then please continue collocation consults as shown in Figure 6A, after pulling first and discharging slide fastener 74, this two electroconductive elastic sheet 78 can form flow pattern with circuit closing contacts 81 mutual butts on these spill spin block 77 sheet metals 78; And after repeating pulling again and discharging slide fastener, will be shown in Fig. 6 B, this moment, this two electroconductive elastic sheet 78 promptly can directly be connected on the side of this spill spin block 77, and did not contact with this circuit closing contacts 81 with the formation pattern that opens circuit; And two circuit closing contacts 81 on this sheet metal 79 and 78 formation paths of each electroconductive elastic sheet, the translative mode that opens circuit, and produce the effect of " open and close ".
Yet, aforementioned pull chain switch is owing to be to be applied on the alternating current motor, therefore behind pulling each time and the release slide fastener 74, this sheet metal 77 can form channel status or off state with this electroconductive elastic sheet 78, and for d.c. motor, its required triggering Starting mode needs to reach with electric current in a flash, therefore the above-mentioned pull chain switch that is used for the alternating current motor, owing to be to use for continuous power to form path or off state, so can not directly migrate to the pull chain switch of direct-current electric motor.
Then please continue to consult Fig. 7, it is the previous designed pull chain switch that acts on the ceiling fan d.c. motor of this case inventor, it comprises a upper shell 91 and a lower house 92 that covers mutually, and the priming dish 93 that is pivoted in upper shell 91 inside, a torque spring 94, and one connect the slide fastener 95 of establishing the priming dish, priming dish 93 1 sides have a joint portion 96 and set firmly a sheet metal 97, and form contact 98 respectively in its two side; And lower house 92 is for ccontaining this joint portion 96, lower house 92 contiguous these sheet metal 97 contacts two sides are respectively equipped with an electroconductive elastic sheet 99, and 99 moments of electroconductive elastic sheet in each contact 98 and this lower house 92 are contacted via the rotation of priming dish 93, connect the purpose that produces immediate current and reach.
Though above-mentioned pull chain switch can directly apply on the direct-current electric motor, but still there is following shortcoming:
1. please arrange in pairs or groups and consult shown in Fig. 8 A, its Starting mode is spurring this slide fastener 95, but and 98 moments of two point on the sheet metal 97 are contacted with on each electroconductive elastic sheet 99; Then when decontroling this slide fastener 95, shown in Fig. 8 B, this priming dish 93 promptly can be subjected to the elastic force effect of this torque spring 94 and impel 93 reverse rotations of priming dish and reinstatement to open circuit with formation; Yet because this kind Starting mode, all be with this sheet metal 97 fixedly the contact 98 on the both sides be in contact with one another butt with this electroconductive elastic sheet 99, so will cause the contact 98 of these sheet metal 97 both sides to wear and tear easily.
Moreover, when spurring slide fastener 95 when user's desire activation direct-current electric motor, contact 98 on these priming dish 93 joint portions 96 will rotate synchronously and be in contact with one another with this two electroconductive elastic sheet 99 and produce an instantaneous electric current to start direct-current electric motor, yet with general user's custom, because this kind pull chain switch is when starting direct-current electric motor, there is no the impression or the sound of any starting switch, therefore cause the user to produce illusion easily, do not finish the action that starts direct-current electric motor and take for.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the above-mentioned defective that prior art exists, and provide a kind of pull chain switch that is used for the ceiling fan d.c. motor, can reach the purpose that produces immediate current, and reduce wear, and then prolong useful life of each conductive junction point, and have the impression that clear and definite startup of user or speed-changing can be provided, make and can avoid producing illusion in the operation and humanized.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of pull chain switch that is used for the ceiling fan d.c. motor, it is to be pivoted with a priming dish in a upper shell inside, one flexible member is to be located between this priming dish and this upper shell, and on this priming dish, be equipped with a slide fastener, carry out a unidirectional rotation and can drive this priming dish, and this priming dish is subjected to the pushing and pressing of this flexible member and carries out a reverse rotation, and on this priming dish, be formed with the pushing part of several inclined thrust surfaces of tool, one end of one spill spin block is to be formed with and the corresponding operand of this inclined thrust surface, and make this inclined thrust surface is that unidirectional clip is on this operand, and but this spill spin block of unidirectional drive carries out the circumference rotation of a segmentation, one lower house is to cover mutually with this upper cover body, and this lower house is to have an accommodation space for being pivoted this spill spin block, and on contiguous these spill spin block two sides of this lower house, respectively be provided with an electroconductive elastic sheet, it is characterized in that: this spill spin block is provided with a sheet metal, this sheet metal is formed with four along this spill spin block periphery and is the conductive junction point that isogonism distributes mutually, and this pushing part drives the circumference rotation each time of this spill spin block, the electrical contact that each conductive junction point on this spill spin block and electroconductive elastic sheet in this lower house produce interruption.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein a gland is to be covered on this priming dish one side, so that this flexible member and this priming dish are positioned in this upper shell inside, and the pushing part of this priming dish passes these gland central authorities and extends outwardly.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein the side of each operand has convexed to form a protuberance respectively outward, and this each conductive junction point and this each protuberance is adjacent is crisscross arranged.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein each conductive junction point and this two electroconductive elastic sheet are in contact with one another and form the channel status of often opening, and when this pushing part drives this spill spin block rotation, this each conductive junction point and this each electroconductive elastic sheet are can be by the channel status that originally was in contact with one another in the stroke of its rotation, change over and shored by this operand side protuberance and temporarily present off state, then change over the channel status that is in contact with one another again.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein two electroconductive elastic sheets are to be subjected to this operand side protuberance to shore and be not in contact with one another with this each conductive junction point, and form normally closed off state, and when this pushing part drives this spill spin block rotation, this two electroconductive elastic sheet will be by the off state that shored by this operand side protuberance in the stroke of its rotation, change over the channel status that temporarily contacts with this each electroconductive elastic sheet, then change over the off state that shored by this operand side protuberance again.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein be formed with four inclined thrust surfaces on the end face of pushing tow face, this spill spin block then is formed with and corresponding four operands of the inclined thrust surface of this pushing part, and when driving the pushing part rotation, can rotate 1/4th circumferential distance towards single direction by this spill spin block of unidirectional pushing tow, and when this priming dish is replaced by this flexible member elastic force and carried out the involution stroke, can't be rotated by this spill spin block of interlock.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein when described priming dish is replaced by this flexible member elastic force and is carried out the involution stroke, inclined thrust surface on this priming dish pushing part is replaced and operand slippage on this spill spin block by the elastic force of this flexible member promptly, and shore this flexible member compression simultaneously, and when the inclined thrust surface on this priming dish pushing part slides onto this operand terminal, this pushing part is pressed down by this flexible member promptly and collides mutually with this spill spin block, and forms the state of unidirectional clip once more with the operand of this spill spin block.
The aforesaid pull chain switch that is used for the ceiling fan d.c. motor, wherein formed four conductive junction points are mutual contour symmetries on the sheet metal.
Whereby, when pull chain switch of the present invention when being in the channel status of often opening at ordinary times, when this pushing part drives this spill spin block rotation, this each conductive junction point and this each electroconductive elastic sheet are can be by the channel status that originally was in contact with one another in the stroke of its rotation, change over and shored by this operand side protuberance and temporarily present off state, then change over the channel status that is in contact with one another again, and can produce an instantaneous electric current to start direct-current electric motor by the electrical contact of above-mentioned interruption.
Moreover, when pull chain switch of the present invention when being in normally closed off state at ordinary times, when this pushing part drives this spill spin block rotation, this two electroconductive elastic sheet will be by the off state that shored by this operand side protuberance in the stroke of its rotation, change over the channel status that temporarily contacts with this each electroconductive elastic sheet, then change over the off state that shored by this operand side protuberance again, and can produce an instantaneous electric current equally to start direct-current electric motor by the electrical contact of above-mentioned interruption.
The invention has the beneficial effects as follows, can reach the purpose that produces immediate current, and reduce wear, and then prolong the useful life of each conductive junction point, have the impression that clear and definite startup of user or speed-changing can be provided, make in the operation and can avoid producing illusion and humanized.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a perspective exploded view of the present invention
Fig. 2 A is a user mode schematic diagram of the present invention, the state when being in path in order to demonstration pull chain switch of the present invention
Fig. 2 B is a user mode schematic diagram of the present invention, shored by operand side protuberance and temporarily presents state when opening circuit in order to show electroconductive elastic sheet of the present invention
Fig. 3 A is a user mode schematic diagram of the present invention, replaced and state during operand slippage on spill spin block by the elastic force of this flexible member in order to show inclined thrust surface on the pushing part of the present invention
Fig. 3 B is a user mode schematic diagram of the present invention, the state when showing that inclined thrust surface on the pushing part of the present invention forms unidirectional clip with the operand of this spill spin block once more
Fig. 4 A is the user mode schematic diagram of another preferred embodiment of the present invention, is in the state when opening circuit in order to show pull chain switch of the present invention
Fig. 4 B is the user mode schematic diagram of another preferred embodiment of the present invention, the state when temporarily presenting path in order to show electroconductive elastic sheet of the present invention and conductive junction point to be in contact with one another
Fig. 5 is the existing perspective exploded view that is used for alternating current motor pull chain switch
Fig. 6 A is the existing action schematic diagram that is used for alternating current motor pull chain switch, the state when showing that it presents path
Fig. 6 B is the existing action schematic diagram that is used for alternating current motor pull chain switch, presents the state when opening circuit in order to show it
Fig. 7 is the existing perspective exploded view that is used for the direct-current electric motor pull chain switch
Fig. 8 A is the existing action schematic diagram that is used for the direct-current electric motor pull chain switch, the state when showing that it presents path
Fig. 8 B is the existing action schematic diagram that is used for the direct-current electric motor pull chain switch, presents the state when opening circuit in order to show it
Embodiment
At first, see also shown in Figure 1ly, the invention provides a kind of pull chain switch that is used for the ceiling fan d.c. motor, it is made of a upper shell 11, a spill spin block 21 and a lower house 31, wherein:
These upper shell 11 inside are pivoted with a priming dish 12, one flexible member 13, one slide fastener 14 and a gland 15, these priming dish 12 1 sides are for this flexible member 13 is set, and this flexible member 13 is a torque spring in present embodiment, and this flexible member 13 is to be connected on these priming dish 12 1 sides with the one end, the other end then is connected to the axle center of these upper shell 11 central authorities, and this slide fastener 14 is to be arranged on this priming dish 12, carry out a unidirectional rotation and can drive this priming dish 12, and this priming dish 12 can be subjected to the elastic force pushing and pressing that this flexible member 13 provides and carry out a reverse rotation, and this gland 15 is in order to be covered on these priming dish 12 1 sides, so as to this flexible member 13 and this priming dish 12 are positioned in these upper shell 11 inside, and have one day outside in this priming dish 12 away from a side middle position of this flexible member 13 and extend and pass the pushing part 16 of these gland 15 central authorities, and be to be formed with four inclined thrust surfaces 161 on the end face of this pushing part 16, is axle when this slide fastener 14 of pulling can make this priming dish 12 with these upper shell 11 centers, rotate towards a circumferencial direction and drive this pushing part 16, otherwise, the involution elastic force that when decontroling this slide fastener 14, then can be provided by this flexible member 13, and make this pushing part 16 towards another circumferencial direction rotation.
These spill spin block 21 1 ends are formed with inclined thrust surface 161 corresponding four operands 22 with this pushing part 16, and make this inclined thrust surface 161 is that unidirectional clip is on this operand 22, and but this spill spin block 21 of unidirectional drive carries out the circumference rotation of a segmentation, and the side of this each operand 22 is to have convexed to form a protuberance 23 respectively outward, and be to be arranged with a sheet metal 24 on this spill spin block 21, and this sheet metal 24 is to be formed with four mutual contour symmetries and to be the conductive junction point 25 that isogonism distributes along these spill spin block 21 peripheries, and this each conductive junction point 25 and these each protuberance 23 adjacent being crisscross arranged.
This lower house 31 is in order to cover mutually with this upper shell 11, and the middle position in this lower house 31 has an accommodation space 32 for this spill spin block 21 that is pivoted, and on these lower house 31 contiguous these spill spin block 21 2 sides, be respectively to be provided with an electroconductive elastic sheet 33, this each electroconductive elastic sheet 33 is to be equipped with required electric wire (not shown) respectively, but so that each electroconductive elastic sheet 33 conducting when contacting of this each conductive junction point 25 and this connect the electric wire electric current of establishing.
And shown in Fig. 2 A, two relative conductive junction points 25 are to be in contact with one another with this two electroconductive elastic sheet 33 and to form the channel status of often opening in the present embodiment, whereby, when the user spurs this slide fastener 14 and when driving 16 rotations of this pushing part, get final product this operand 22 of unidirectional pushing tow and make the circumferential distance of this spill spin block 21 towards single direction rotation 1/4th, and when the user decontrols this slide fastener 14, this priming dish 12 is influenced by the involution elastic force of this flexible member 13 promptly can, and the position when carrying out the involution stroke and being retracted into the original not application of force, this moment since the pushing part 16 of this priming dish 12 be with its inclined thrust surface 161 unidirectional clips on the operand 22 of this spill spin block 21, therefore can't be rotated by this spill spin block 21 of interlock, this each conductive junction point 25 can on average contact with this two electroconductive elastic sheet 33 whereby, so as to reducing the wearing and tearing situation of this each conductive junction point 25, and and then prolong useful life of each conductive junction point 25.
When this pushing part 16 drives the circumferential distance of these spill spin block 21 rotations 1/4th, this each conductive junction point 25 is can be by the channel status that originally was in contact with one another (shown in Fig. 2 A) with this each electroconductive elastic sheet 33 in the stroke of its rotation, change over and shored by this operand 22 side protuberances 23 and temporarily present off state (shown in Fig. 2 B), then change over the channel status (shown in Fig. 2 A) that is in contact with one another again, and can produce an instantaneous signal to reach the purpose that starts direct-current electric motor by the electrical contact action of above-mentioned interruption.
Then please continue to consult Fig. 3 A, make this priming dish 12 replaced and during by the elastic force of this flexible member 13 towards another circumferencial direction rotation when decontroling this slide fastener 14, inclined thrust surface 161 on these priming dish 12 pushing parts 16 is replaced and operand 22 slippages on this spill spin block 21 by the elastic force of this flexible member 13 promptly can, and in this simultaneously this priming dish 12 be to shore the internal compression of this flexible member 13 gradually toward these upper shells 11; And when the inclined thrust surface 161 on these priming dish 12 pushing parts 16 slides onto this operand 22 terminal, shown in the 3rd figure B, the elastic force effect that reply the past below that this pushing part 16 is produced by this flexible member 13 promptly can, and form the state of unidirectional clip once more with the operand 22 of this spill spin block 21, and the collision sense of touch and the sound that are produced during clip mutually once more by this inclined thrust surface 161 and this operand 22, the user can be provided clear and definite startup impression, and avoid when operation, producing illusion.
Shown in Fig. 4 A, it is another preferred embodiment of the present invention, it mainly is in order to disclose a kind of pull chain switch structure of normally closed type, itself and only not being both of previous embodiment are: this two electroconductive elastic sheet 33 is subjected to these operand 22 side protuberances 23 to shore and be not in contact with one another with this each conductive junction point 25, and form normally closed off state, whereby when this pushing part 16 drives the circumferential distance of these spill spin block 21 rotations 1/4th, this two electroconductive elastic sheet 33 will be by the off state that shored by these operand 22 side protuberances 23 in the stroke of its rotation, change over the channel status (shown in Fig. 4 B) that temporarily contacts with this each conductive junction point 25, then change over the off state (shown in Fig. 4 A) that shored by these operand 22 side protuberances 23 again, and can produce an instantaneous signal equally and so as to starting direct-current electric motor by the electrical contact action of above-mentioned interruption.
Claims (8)
1. pull chain switch that is used for the ceiling fan d.c. motor, it is to be pivoted with a priming dish in a upper shell inside, one flexible member is to be located between this priming dish and this upper shell, and on this priming dish, be equipped with a slide fastener, carry out a unidirectional rotation and can drive this priming dish, and this priming dish is subjected to the pushing and pressing of this flexible member and carries out a reverse rotation, and on this priming dish, be formed with the pushing part of several inclined thrust surfaces of tool, one end of one spill spin block is to be formed with and the corresponding operand of this inclined thrust surface, and make this inclined thrust surface is that unidirectional clip is on this operand, and but this spill spin block of unidirectional drive carries out the circumference rotation of a segmentation, one lower house is to cover mutually with this upper cover body, and this lower house is to have an accommodation space for being pivoted this spill spin block, and on contiguous these spill spin block two sides of this lower house, respectively be provided with an electroconductive elastic sheet, it is characterized in that:
This spill spin block is provided with a sheet metal, this sheet metal is formed with four along this spill spin block periphery and is the conductive junction point that isogonism distributes mutually, and this pushing part drives the circumference rotation each time of this spill spin block, the electrical contact that each conductive junction point on this spill spin block and electroconductive elastic sheet in this lower house produce interruption.
2. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 1, it is characterized in that: a gland is to be covered on this priming dish one side, so that this flexible member and this priming dish are positioned in this upper shell inside, and the pushing part of this priming dish passes these gland central authorities and extends outwardly.
3. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 1 is characterized in that: the side of described each operand has convexed to form a protuberance respectively outward, and this each conductive junction point and this each protuberance is adjacent is crisscross arranged.
4. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 3, it is characterized in that: described each conductive junction point and this two electroconductive elastic sheet are in contact with one another and form the channel status of often opening, and when this pushing part drives this spill spin block rotation, this each conductive junction point and this each electroconductive elastic sheet are can be by the channel status that originally was in contact with one another in the stroke of its rotation, change over and shored by this operand side protuberance and temporarily present off state, then change over the channel status that is in contact with one another again.
5. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 3, it is characterized in that: described two electroconductive elastic sheets are to be subjected to this operand side protuberance to shore and be not in contact with one another with this each conductive junction point, and form normally closed off state, and when this pushing part drives this spill spin block rotation, this two electroconductive elastic sheet will be by the off state that shored by this operand side protuberance in the stroke of its rotation, change over the channel status that temporarily contacts with this each electroconductive elastic sheet, then change over the off state that shored by this operand side protuberance again.
6. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 1, it is characterized in that: be formed with four inclined thrust surfaces on the end face of described pushing tow face, this spill spin block then is formed with and corresponding four operands of the inclined thrust surface of this pushing part, and when driving the pushing part rotation, can rotate 1/4th circumferential distance towards single direction by this spill spin block of unidirectional pushing tow, and when this priming dish is replaced by this flexible member elastic force and carried out the involution stroke, can't be rotated by this spill spin block of interlock.
7. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 6, it is characterized in that: when described priming dish is replaced by this flexible member elastic force and carried out the involution stroke, inclined thrust surface on this priming dish pushing part is replaced and operand slippage on this spill spin block by the elastic force of this flexible member promptly, and shore this flexible member compression simultaneously, and when the inclined thrust surface on this priming dish pushing part slides onto this operand terminal, this pushing part is pressed down by this flexible member promptly and collides mutually with this spill spin block, and forms the state of unidirectional clip once more with the operand of this spill spin block.
8. the pull chain switch that is used for the ceiling fan d.c. motor according to claim 1 is characterized in that: formed four conductive junction points are mutual contour symmetries on the described sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100533320A CN101593636A (en) | 2008-05-29 | 2008-05-29 | The pull chain switch that is used for the ceiling fan d.c. motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100533320A CN101593636A (en) | 2008-05-29 | 2008-05-29 | The pull chain switch that is used for the ceiling fan d.c. motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101593636A true CN101593636A (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100533320A Pending CN101593636A (en) | 2008-05-29 | 2008-05-29 | The pull chain switch that is used for the ceiling fan d.c. motor |
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| Country | Link |
|---|---|
| CN (1) | CN101593636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254726A (en) * | 2010-05-19 | 2011-11-23 | 黄美媚 | Electrical switch |
| CN109473305A (en) * | 2018-09-30 | 2019-03-15 | 惠阳晋煜工业有限公司 | A kind of drawing switch |
-
2008
- 2008-05-29 CN CNA2008100533320A patent/CN101593636A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254726A (en) * | 2010-05-19 | 2011-11-23 | 黄美媚 | Electrical switch |
| CN102254726B (en) * | 2010-05-19 | 2015-07-15 | 黄美媚 | Electrical switch |
| CN109473305A (en) * | 2018-09-30 | 2019-03-15 | 惠阳晋煜工业有限公司 | A kind of drawing switch |
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Open date: 20091202 |