CN203134589U - Linkage integrated brake structure of switch, switch and electric tool - Google Patents
Linkage integrated brake structure of switch, switch and electric tool Download PDFInfo
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- CN203134589U CN203134589U CN 201320107125 CN201320107125U CN203134589U CN 203134589 U CN203134589 U CN 203134589U CN 201320107125 CN201320107125 CN 201320107125 CN 201320107125 U CN201320107125 U CN 201320107125U CN 203134589 U CN203134589 U CN 203134589U
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- movable contact
- interlock
- switch
- brake
- contacts
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Abstract
The utility model provides the linkage integrated brake structure of a switch, a switch and an electric tool. The linkage integrated brake structure comprises a plurality of movable contact bridges, elastic metal sheets, a plurality of movable contacts and a plurality of static contacts. The plurality of movable contact bridges are orderly arranged in parallel and at intervals and are connected with each other through the elastic metal sheets. The plurality of movable contacts are composed of a plurality of brake movable contacts and a plurality of operation movable contacts. The first end of each movable contact bridge is provided with one brake movable contact respectively. The second end of each movable contact bridge is provided with one operation movable contact respectively. The plurality of static contacts are composed of a plurality of brake static contacts and a plurality of operation static contacts, wherein the plurality of brake static contacts are in one-to-one correspondence with the plurality of brake movable contacts and the plurality of operation static contacts are in one-to-one correspondence with the plurality of operation movable contacts. Since the plurality of movable contact bridges are connected with each other through the elastic metal sheets, the plurality of brake movable contacts and the plurality of brake static contacts are closed during the braking process to realize the multi-point kick over. In this way, the phenomenon in the prior art that contacts are badly worn during the braking process in the single-point contact manner is relieved. Therefore, the service life of the linkage integrated brake structure is prolonged.
Description
Technical field
The utility model relates to the switching device field, more specifically, relates to a kind of compound brake structure of interlock, switch and electric tool of switch.
Background technology
At present, the brake structure in the electric tool mainly is divided into electric brake and mechanical brake two big classes.Because there is the cost height in electric brake, Circuits System is had relatively high expectations, is easy to generate shortcoming such as labile state, thereby seldom uses, and traditional mechanical brake is widely used in switch.
Mechanical brake of the prior art is divided into following several structure: promote contact-type, contacts side surfaces type, seesaw contact-type.
Brake structure of the prior art is single contact contact brake, and namely in the process of brake, a brake moving contact contacts with a brake fixed contact, thereby with two input short circuits of motor, and then realize braking.Along with the electric tool performance constantly promotes, electric tool is also more and more higher to the requirement of braking quality, and the spark phenomenon that brake structure took place in the moment of contact closure is also more serious.
Because brake structure of the prior art is single contact contact brake, thereby the spark phenomenon during brake cause braking moving contact and the heavy wear of brake fixed contact, thereby shortened useful life of brake structure.
The utility model content
The utility model aims to provide a kind of compound brake structure of interlock, switch and electric tool of switch, causes brake structure short problem in useful life to solve single contact contact brake sparking in the prior art.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of compound brake structure of interlock of switch, comprising: a plurality of movable contact bridges, a plurality of movable contact bridges arranged side by side and compartment of terrain successively arrange; Elastic sheet metal, a plurality of movable contact bridges connect by elastic sheet metal; A plurality of moving contacts, a plurality of moving contacts comprise a plurality of brake moving contacts and a plurality of operation moving contact, and first end of each movable contact bridge is provided with the brake moving contact, and second end of each movable contact bridge is provided with the operation moving contact; A plurality of fixed contacts, a plurality of fixed contacts comprise a plurality of brake fixed contacts that arrange correspondingly with a plurality of brake moving contacts and a plurality of operation fixed contacts that arrange correspondingly with a plurality of operation moving contacts.
Further, elastic sheet metal comprises a plurality of interlock sheets and the brace that is used for being connected a plurality of interlock sheets that are set up in parallel in same plane; First end of interlock sheet is connected with second end of movable contact bridge respectively.
Further, first end of each interlock sheet is provided with connecting hole, and the operation moving contact passes behind the connecting hole of elastic sheet metal second end riveted joint with the movable contact bridge.
Further, elastic sheet metal also comprises the spacer of the corresponding connection of second end with each interlock sheet.
Further, the number of movable contact bridge is two.
According to another aspect of the present utility model, a kind of switch is provided, comprise the positive source input part, brake structure, power cathode input part and changement, changement is connected with positive source input part and power cathode input part respectively, the positive source input part comprises the support portion, brake structure is the above-mentioned compound brake structure of interlock, each the movable contact bridge of compound brake structure of linking all is connected pivotly with the support portion, the a plurality of operation fixed contacts of compound brake structure of linking are arranged on the positive source input part, the a plurality of brake fixed contacts of compound brake structure of linking are arranged on the power cathode input part, the movable contact bridge selectively with positive source input part or power cathode input part closure.
Further, the support portion comprises a plurality of location holes, and first end and the movable contact bridging of the elastic sheet metal of the compound brake structure that links connect, and second end of elastic sheet metal inserts in the location hole.
Further, switch also comprises the operation rod that can move along the bearing of trend of movable contact bridge; Operation rod comprise the body of rod, a plurality of briquettings that are set up in parallel and with a plurality of briquettings a plurality of flexible members of corresponding setting one by one, one end of the body of rod is provided with installing hole, one end of flexible member and the bottom butt of installing hole, the other end of flexible member and briquetting butt, and the briquetting of a part is arranged in the installing hole versatilely, and the surperficial butt of briquetting and movable contact bridge.
According to another aspect of the present utility model, a kind of electric tool is provided, comprise switch, switch is above-mentioned switch.
Further, electric tool also comprises motor, motor comprises the first terminal, second terminal and the 3rd terminal that is electrically connected with the first terminal, the changement of switch comprises the first commutation movable contact spring and the second commutation movable contact spring, the positive source input part of switch selectively is connected with the first terminal or second terminal of motor by the first commutation movable contact spring, and the power cathode input part of switch selectively is connected with second terminal or the 3rd terminal of motor by the second commutation movable contact spring.
The compound brake structure of interlock of the present utility model comprises a plurality of movable contact bridges arranged side by side and that arrange at interval, a plurality of movable contact bridges connect by elastic sheet metal, first end of each movable contact bridge is provided with the brake moving contact, and second end of each movable contact bridge is provided with the operation moving contact; The compound brake structure that links also comprises a plurality of brake fixed contacts that arrange correspondingly with a plurality of brake moving contacts and a plurality of operation fixed contacts that arrange correspondingly with a plurality of operation moving contacts.Owing to be provided with a plurality of movable contact bridges, and a plurality of movable contact bridges connect by elastic sheet metal, thereby when brake, a plurality of brake moving contacts and a plurality of brake fixed contact closure, the sparking of formation multiple spot, thereby reduced the problem of contact serious wear when the single-point contact is braked, and then prolonged the useful life of the compound brake structure that links.Because a plurality of movable contact bridges connect by elastic sheet metal, thereby avoid a plurality of movable contact bridge movement differentials excessive and cause the equipment problem of short-circuit, improved the equipment reliability of operation.Simultaneously, the compound brake structure of the interlock in the utility model has characteristics simple in structure, low cost of manufacture.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the annexation schematic diagram of the compound brake structure of the interlock in the utility model and support portion;
Fig. 2 has schematically shown the structural representation that movable contact bridge, moving contact and the elastic sheet metal in the utility model matches;
Fig. 3 has schematically shown the structural representation of the elastic sheet metal in the utility model;
Fig. 4 has schematically shown the annexation schematic diagram of the operation rod in the utility model with the compound brake structure of interlock;
Fig. 5 has schematically shown the annexation schematic diagram of the body of rod, flexible member and briquetting in the operation rod in the utility model;
Fig. 6 has schematically shown changement in the utility model and the annexation schematic diagram of positive source input part and power cathode input part; And
Fig. 7 has schematically shown the commutation driving lever in the changement in the utility model, the annexation schematic diagram of commutate spring and the first commutation movable contact spring and the second commutation movable contact spring.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of compound brake structure of interlock of switch.As shown in Figure 1 to Figure 3, the compound brake structure that links comprises: a plurality of movable contact bridges 10, a plurality of movable contact bridges 10 arranged side by side and compartment of terrain successively arrange; Elastic sheet metal 40, a plurality of movable contact bridges 10 connect by elastic sheet metal 40; A plurality of moving contacts 20, a plurality of moving contacts 20 comprise a plurality of brake moving contacts 21 and a plurality of operation moving contact 22, and first end of each movable contact bridge 10 is provided with brake moving contact 21, and second end of each movable contact bridge 10 is provided with operation moving contact 22; A plurality of fixed contacts 30, a plurality of fixed contacts 30 comprise a plurality of brake fixed contacts 31 that arrange correspondingly with a plurality of brake moving contacts 21 and a plurality of operation fixed contacts 32 that arrange correspondingly with a plurality of operation moving contacts 22.Owing to be provided with a plurality of movable contact bridges 10, and a plurality of movable contact bridges 10 connect by elastic sheet metal 40, thereby when brake, a plurality of brake moving contacts 21 and a plurality of brake fixed contact 31 closures, form the multiple spot sparking (because there are the error that produces after foozle, rigging error, the service wear etc. in a plurality of brake moving contacts 21 and a plurality of brake fixed contacts 31, thereby a plurality of movable contact bridges 10 can not be synchronized with the movement and brake fully), thereby reduced the problem of contact serious wear when the single-point contact is braked, and then prolonged the useful life of the compound brake structure that links.Because a plurality of movable contact bridges 10 connect by elastic sheet metal 40, thereby avoid a plurality of movable contact bridge 10 movement differentials excessive and cause equipment (for example electric tool) problem of short-circuit, improved the equipment reliability of operation.Simultaneously, the compound brake structure of the interlock in the utility model has characteristics simple in structure, low cost of manufacture.
Preferably, as shown in Figure 1 to Figure 3, elastic sheet metal 40 comprises a plurality of interlock sheets 41 and the brace 42 that is used for being connected a plurality of interlock sheets 41 that are set up in parallel in same plane; First end 45 of interlock sheet 41 is connected with second end of movable contact bridge 10 respectively.Preferably, each interlock sheet 41 all is connected with a movable contact bridge 10.When some movable contact bridges 10 move, this movable contact bridge 10 can drive connected interlock sheet 41 motions, thereby this is moved through this interlock sheet 41 pass to connected brace 42, and then another interlock sheet 41 that links to each other is given in transmission, thereby drive another movable contact bridge 10 motions, and will move and transmit successively, guarantee a plurality of synchronous relatively motions of movable contact bridge 10 that can not be synchronized with the movement fully.Owing to use elastic sheet metal 40 to be connected with movable contact bridge 10, thereby both can satisfy the requirement that a plurality of movable contact bridges 10 can not be synchronized with the movement, can when elastic sheet metal 40 is deformed to a certain degree, become a hard parts again, be used for transferring power and guarantee the synchronous relatively motion of a plurality of movable contact bridges 10.
Preferably, as shown in Figures 2 and 3, first end 45 of each interlock sheet 41 is provided with connecting hole 43, and operation moving contact 22 passes connecting hole 43 backs of elastic sheet metal 40 and second end riveted joint of movable contact bridge 10.Because elastic sheet metal 40 is riveted by operation moving contact 22 with movable contact bridge 10, thereby the compound brake structure of the interlock in the utility model has the reliable characteristics of connection.
Preferably, as shown in Figure 1 to Figure 3, elastic sheet metal 40 also comprises the spacer 44 of second end, 46 corresponding connections with each interlock sheet 41.Owing to be provided with spacer 44, thereby interlock sheet 41 cooperates with the miscellaneous part location by spacer 44.
Among the embodiment as shown in Figure 3, interlock sheet 41 is two, and two interlock sheets 41 connect by a brace 42, and elastic sheet metal 40 is the H type.Preferably, the distance of first end 45 of brace 42 and interlock sheet 41 is greater than the distance of interlock sheet 41 with second end of brace 42.Because the distance of first end 45 of brace 42 and interlock sheet 41 is greater than the distance of interlock sheet 41 with second end of brace 42, and spacer 44 is for sheet 41 location of will linking, thereby first end 45 of interlock sheet 41 has bigger degree of deformation, can satisfy in the utility model movable contact bridge 10 not exclusively synchronously but the requirement that is synchronized with the movement relatively.
Preferably, shown in the embodiment of Fig. 1 to Fig. 6, the number of movable contact bridge 10 is two.Preferably, each movable contact bridge 10 is provided with a brake moving contact 21 and an operation moving contact 22, and brake moving contact 21 and the 31 corresponding settings of a brake fixed contact, an operation moving contact 22 and the 32 corresponding settings of an operation fixed contact.
As second aspect of the present utility model, provide a kind of switch.Extremely shown in Figure 7 as Fig. 1, switch comprises positive source input part 60, brake structure, power cathode input part 70 and changement 90, changement 90 is connected with positive source input part 60 and power cathode input part 70 respectively, positive source input part 60 comprises support portion 50, brake structure is the above-mentioned compound brake structure of interlock, each the movable contact bridge 10 of compound brake structure of linking all is connected pivotly with support portion 50, the a plurality of operation fixed contacts 32 of compound brake structure of linking are arranged on the positive source input part 60, the a plurality of brake fixed contacts 31 of compound brake structure of linking are arranged on the power cathode input part 70, movable contact bridge 10 selectively with positive source input part 60 or power cathode input part 70 closures.
Preferably, support portion 50 comprises a plurality of projectioies, and each movable contact bridge 10 includes and the projection pivoted hole of corresponding setting one by one, and projection is embedded in pivoted hole.Because projection flexibly connects with pivoted hole, thereby works as the time spent of doing that movable contact bridge 10 is subjected to external force, movable contact bridge 10 can be with respect to support portion 50 motions.
Preferably, as shown in Figure 1, support portion 50 comprises a plurality of location holes 51, and first end of the elastic sheet metal 40 of the compound brake structure that links is connected with movable contact bridge 10, and second end of elastic sheet metal 40 inserts in the location hole 51.Preferably, the spacer 44 of elastic sheet metal 40 is connected with location hole 51.Further, spacer 44 is plugged in the location hole 51.Because spacer 44 is plugged in the location hole 51, thereby when 10 motions of movable contact bridge, spacer 44 moves in location hole 51, and elastic sheet metal 40 and support portion 50 are dynamically assembled.
Among the embodiment as shown in Figure 1, first end of elastic sheet metal 40 is connected by operation moving contact 22 with movable contact bridge 10, second end of elastic sheet metal 40 dynamically assembles by the location hole 51 of spacer 44 with support portion 50, thereby be formed with the tensioning distance between second end of elastic sheet metal 40 and the movable contact bridge 10, thereby guarantee that elastic sheet metal 40 can produce tensile force when diriven motion, guarantee that simultaneously elastic sheet metal 40 can not damage owing to deformation is excessive, and then guarantee that the motion between a plurality of movable contact bridges 10 transmits smoothly.
Preferably, as Fig. 1 and shown in Figure 6, power cathode input part 70 comprises first negative pole input brace 71, the input of second negative pole brace 72, field effect transistor 73 and the power cathode brace 74 that connects successively.Further, first negative pole input brace 71 is connected by brake fixed contact 31 with second negative pole input brace 72.Because first negative pole input brace 71 is connected by brake fixed contact 31 with second negative pole input brace 72, thereby the switch in the utility model has the reliable characteristics of connection.
Preferably, as Fig. 1 and shown in Figure 6, positive source input part 60 also comprises positive source brace 61 and anodal input brace 62, and operation fixed contact 32 is arranged on the positive source brace 61, and anodal input brace 62 is connected with support portion 50.Further, operation fixed contact 32 and 61 riveted joints of positive source brace.Switch in the utility model has the reliable characteristics of connection.
Preferably, switch also comprises the operation rod 80 that can move along the bearing of trend of movable contact bridge 10; Operation rod 80 comprise the body of rod 81, a plurality of briquettings 82 that are set up in parallel and with a plurality of briquettings 82 a plurality of flexible members 83 of corresponding setting one by one, one end of the body of rod 81 is provided with installing hole 81a, one end of flexible member 83 and the bottom butt of installing hole 81a, the other end of flexible member 83 and briquetting 82 butts, and the briquetting 82 of a part is arranged in the installing hole 81a versatilely, and the surperficial butt of briquetting 82 and movable contact bridge 10.Because briquetting 82 is connected by flexible member 83 with the body of rod 81, thereby when the apparent motion of briquetting 82 at the effect lower edge of the body of rod 81 movable contact bridge 10, can regulate the position of briquetting 82 in installing hole 81a according to the distance between movable contact bridge 10 surfaces and the body of rod 81, cooperate high characteristics thereby make operation rod 80 and movable contact bridge 10 have motion.
Preferably, flexible member 83 is stage clips.Certainly, flexible member 83 can also be resilient rubbber cushion etc.
When using the switch in the utility model, the staff can be by the position of the body of rod 81 in the control operation bar assembly 80, and control briquetting 82 in the position on the surface of movable contact bridge 10, thus make switch be in different operating states, and then realize the control to the equipment operation.
As the 3rd aspect of the present utility model, provide a kind of electric tool.Electric tool comprises switch, and switch is above-mentioned switch.
Preferably, electric tool also comprises motor, the 3rd terminal (can think that also the first terminal and the 3rd terminal belong to same parts) that motor comprises the first terminal, second terminal and is electrically connected with the first terminal, the changement 90 of switch comprises the first commutation movable contact spring 91 and the second commutation movable contact spring 92, the positive source input part 60 of switch selectively is connected with the first terminal or second terminal of motor by the first commutation movable contact spring 91, and the power cathode input part 70 of switch selectively is connected with second terminal or the 3rd terminal of motor by the second commutation movable contact spring 92.By changing the connection status of the first commutation movable contact spring 91 and the second commutation movable contact spring 92 and each terminal of motor, can control the rotation direction of motor.
Preferably, the first commutation movable contact spring 91 is connected with the positive pole input brace 62 of positive source input part 60, and the second commutation movable contact spring 92 is connected with first negative pole input brace 71 of power cathode input part 70.
In Fig. 4 and embodiment shown in Figure 6, when the staff promotes the body of rod 81 to the direction near switch, briquetting 82 moves to the direction of operation moving contact 22 from brake moving contact 21 along the surface of movable contact bridge 10, till operation moving contact 22 and operation fixed contact 32 closures.At this moment, the loop conducting in the switch, equipment brings into operation.Work loop: the anodal positive source brace 61 that inserts positive source input part 60 of external power source, be positioned at operation moving contact 22 conductings of operation fixed contact 32 with the movable contact bridge 10 of positive source brace 61, movable contact bridge 10, support portion 50, the conducting successively of anodal input brace 62, anodal input brace 62 is by the first terminal conducting of the first commutation movable contact spring 91 with motor, second terminal of motor and first negative pole input brace 71, second negative pole input brace 72, field effect transistor 73 and power cathode brace 74 conducting successively, power cathode brace 74 and the conducting of external power source negative pole.
In Fig. 4 and embodiment shown in Figure 6, when the staff spurs the body of rod 81 to the direction away from switch, briquetting 82 moves to the direction of brake moving contact 21 from operation moving contact 22 along the surface of movable contact bridge 10, till brake moving contact 21 and brake fixed contact 31 closures.At this moment, the loop short circuit in the switch, equipment is out of service.The work loop: the anodal positive source brace that inserts positive source input part 60 of external power source is positioned at operation moving contact 22 disconnections of operation fixed contact 32 with the movable contact bridge 10 of positive source brace, not conducting of loop; And second terminal of motor and first negative pole input brace 71, second negative pole are imported brace 72 conducting successively, the brake fixed contact 31 of the brace 71 of first negative pole input simultaneously and brake moving contact 21 conductings of movable contact bridge 10, the first terminal conducting successively of movable contact bridge 10 and support portion 50, first negative pole input brace 71, the first commutation movable contact spring 91 and motor, thereby make the first terminal and the motor second terminal equipotential of motor, be about to two terminal shortcircuits of motor, thereby realize brake.
A plurality of movable contact bridges 10 of the compound brake structure of interlock in the utility model need relatively synchronously motion.If the movement differential of a plurality of movable contact bridges 10 is excessive, will cause power supply short circuit, cause potential safety hazard.In a specific embodiment, the compound brake structure that links comprises that 10, two movable contact bridges of two movable contact bridges 10 are the first movable contact bridge and the second movable contact bridge.If two movable contact bridge 10 movement differentials are excessive, in the time of will causing the brake fixed contact 31 of the brake moving contact 21 of the first movable contact bridge and the first movable contact bridge closed, electric tool produces brake function, and this moment the operation moving contact 22 of the second movable contact bridge and brake fixed contact 31 closures of the second movable contact bridge, the positive pole of power supply inserts positive source input part 60, the negative pole of power supply inserts power cathode input part 70, and positive source input part 60 and 70 conductings of power cathode input part, even the negative pole short circuit of the positive pole of power supply and power supply, thereby cause potential safety hazard.
Preferably, as shown in Figure 7, changement also comprises: commutation driving lever 93 and two commutation springs 94.Further, commutation driving lever 93 also comprises for the perforate that commutation spring 94 is installed.At least a portion of commutation spring 94 is positioned at perforate, and an end of two commutation springs 94 is connected with the second commutation movable contact spring 92 with the first commutation movable contact spring 91 respectively.When needs change the rotation direction of motor, by stirring commutation driving lever 93, can change the annexation of the first commutation movable contact spring 91 and the second commutation movable contact spring 92 and motor terminal.
The compound brake structure of interlock in the utility model has the characteristics of long service life, can satisfy the harsh day by day instructions for use of client.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. the compound brake structure of the interlock of a switch is characterized in that, comprising:
A plurality of movable contact bridges (10), a plurality of described movable contact bridges (10) arranged side by side and compartment of terrain successively arrange;
Elastic sheet metal (40), a plurality of described movable contact bridges (10) connect by described elastic sheet metal (40);
A plurality of moving contacts (20), described a plurality of moving contact (20) comprises a plurality of brake moving contacts (21) and a plurality of operation moving contact (22), first end of each described movable contact bridge (10) is provided with described brake moving contact (21), and second end of each described movable contact bridge (10) is provided with described operation moving contact (22);
A plurality of fixed contacts (30), described a plurality of fixed contacts (30) comprise a plurality of brake fixed contacts (31) that arrange correspondingly with a plurality of described brake moving contacts (21) and a plurality of operation fixed contacts (32) that arrange correspondingly with a plurality of described operation moving contacts (22).
2. the compound brake structure of interlock according to claim 1 is characterized in that, described elastic sheet metal (40) comprises a plurality of interlock sheets (41) and the brace (42) that is used for being connected a plurality of described interlock sheets (41) that are set up in parallel in same plane; First end (45) of described interlock sheet (41) is connected with second end of described movable contact bridge (10) respectively.
3. the compound brake structure of interlock according to claim 2, it is characterized in that, described first end (45) of each described interlock sheet (41) is provided with connecting hole (43), and described operation moving contact (22) passes described connecting hole (43) back of described elastic sheet metal (40) and second end riveted joint of described movable contact bridge (10).
4. the compound brake structure of interlock according to claim 2 is characterized in that, described elastic sheet metal (40) also comprises the spacer (44) with the corresponding connection of second end (46) of each described interlock sheet (41).
5. according to the compound brake structure of each described interlock in the claim 1 to 4, it is characterized in that the number of described movable contact bridge (10) is two.
6. switch, comprise positive source input part (60), brake structure, power cathode input part (70) and changement (90), described changement (90) is connected with described positive source input part (60) and described power cathode input part (70) respectively, described positive source input part (60) comprises support portion (50), it is characterized in that, described brake structure is the compound brake structure of each described interlock in the claim 1 to 5, each movable contact bridge (10) of the compound brake structure of described interlock all is connected pivotly with described support portion (50), a plurality of operation fixed contacts (32) of the compound brake structure of described interlock are arranged on the described positive source input part (60), a plurality of brake fixed contacts (31) of the compound brake structure of described interlock are arranged on the described power cathode input part (70), described movable contact bridge (10) selectively with described positive source input part (60) or described power cathode input part (70) closure.
7. switch according to claim 6, it is characterized in that, described support portion (50) comprises a plurality of location holes (51), first end of the elastic sheet metal (40) of the compound brake structure of described interlock is connected with described movable contact bridge (10), and second end of described elastic sheet metal (40) inserts in the described location hole (51).
8. switch according to claim 6 is characterized in that, described switch also comprises the operation rod (80) that can move along the bearing of trend of described movable contact bridge (10); Described operation rod (80) comprises the body of rod (81), the a plurality of briquettings (82) that are set up in parallel and with a plurality of described briquettings (82) a plurality of flexible members (83) of corresponding setting one by one, one end of the described body of rod (81) is provided with installing hole (81a), the bottom butt of one end of described flexible member (83) and described installing hole (81a), the other end of described flexible member (83) and described briquetting (82) butt, and the described briquetting (82) of a part is arranged in the described installing hole (81a) versatilely, and the surperficial butt of described briquetting (82) and described movable contact bridge (10).
9. an electric tool comprises switch, it is characterized in that, described switch is each described switch in the claim 6 to 8.
10. electric tool according to claim 9, it is characterized in that, described electric tool also comprises motor, described motor comprises the first terminal, second terminal and the 3rd terminal that is electrically connected with described the first terminal, the changement of described switch (90) comprises the first commutation movable contact spring (91) and the second commutation movable contact spring (92), the positive source input part (60) of described switch selectively is connected with described the first terminal or described second terminal of described motor by the described first commutation movable contact spring (91), and the power cathode input part (70) of described switch selectively is connected with described second terminal or described the 3rd terminal of described motor by the described second commutation movable contact spring (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107125 CN203134589U (en) | 2013-03-08 | 2013-03-08 | Linkage integrated brake structure of switch, switch and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107125 CN203134589U (en) | 2013-03-08 | 2013-03-08 | Linkage integrated brake structure of switch, switch and electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134589U true CN203134589U (en) | 2013-08-14 |
Family
ID=48942540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107125 Withdrawn - After Issue CN203134589U (en) | 2013-03-08 | 2013-03-08 | Linkage integrated brake structure of switch, switch and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198937A (en) * | 2013-03-08 | 2013-07-10 | 上海拜骋电器有限公司 | Linkage combined brake structure of switch, switch and electric tool |
-
2013
- 2013-03-08 CN CN 201320107125 patent/CN203134589U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198937A (en) * | 2013-03-08 | 2013-07-10 | 上海拜骋电器有限公司 | Linkage combined brake structure of switch, switch and electric tool |
| WO2014134858A1 (en) * | 2013-03-08 | 2014-09-12 | 上海拜骋电器有限公司 | Linked composite brake structure for switch, switch and electric tool |
| CN103198937B (en) * | 2013-03-08 | 2015-10-28 | 上海拜骋电器有限公司 | The interlock compound brake structure of switch, switch and electric tool |
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| C14 | Grant of patent or utility model | ||
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