CN111446102A - Three-gear switch with indicator lamp - Google Patents

Abstract

The invention discloses a three-gear switch with an indicator light, which is characterized in that a contact piece is arranged on a transmission part, a power-off notch is arranged on the contact piece, when the button is turned on or off, the transmission component and the contact piece thereof are driven to deflect together, so that the conductive piece is switched between the contact piece and the power-off gap in a sliding way, the indicator lamp is electrically connected with the contact piece and the rocker contact, so that the indicator lamp can be controlled to be synchronously lightened or extinguished when the button is opened or closed, further reminding an operator to observe whether the switch is in a working state, the structural design has the advantages that the reminding function of the three-gear switch during opening and closing can be realized only by setting a single indicator lamp, the installation circuit and the structure are simplified, the number of installation parts is reduced, the occupied internal space of the switch is small, therefore, the overall volume of the three-gear switch can be smaller, and the development of products towards miniaturization trend is facilitated.

Description

Three-gear switch with indicator lamp

Technical Field

The invention relates to the technical field of switches, in particular to a three-gear switch with an indicator lamp.

Background

The switch is an element for turning on and off various functions of the circuit, and also has a function of actively preventing an electrical fire. The switch is applied to various electronic equipment and household appliances. Boat-type switches are also known as rocker switches. The structure of the button switch is the same as that of a button switch, but the button handle is changed into a boat shape. Ship-type switches are commonly used as power switches of electronic equipment, and the contacts of the ship-type switches are divided into a single-pole single-throw switch, a double-pole double-throw switch and the like, and some switches are provided with indicator lights.

Chinese patent document CN205122457U discloses a three-gear switch, which includes a housing, a control assembly, a rocker, and a conductive pin assembly, where the conductive pin assembly includes a first conductive assembly, a middle conductive assembly, and a second conductive assembly, the control assembly includes a handle, a guide sleeve, and a control spring, the handle and the guide sleeve are elastically connected by the control spring, the other end of the guide sleeve opposite to the handle is connected with the rocker in an abutting manner, and the control spring is electrically connected with the rocker, the first conductive assembly is electrically connected with a first connecting piece, the handle is provided with a first indicator light, and a first elastic conductive piece arranged between the first connecting piece and the first indicator light, one end of the first indicator light is electrically connected with the first elastic conductive piece, and the other end of the first indicator light is electrically connected with the control spring; the second electric conduction group electricity is connected with the second connection piece, the handle corresponds the second electric conduction group and is equipped with the electrically conductive piece of second elasticity, the handle is equipped with the second pilot lamp, the one end of second pilot lamp with the electrically conductive piece electricity of second elasticity is connected, its other end with control the spring electricity and be connected, then operating handle makes the wane intercommunication first electric conduction group and middle electric conduction group or intercommunication the electrically conductive group in the middle of the second makes first pilot lamp or the second pilot lamp is lighted.

It can be seen from foretell three grades of switch's structure, gear to three grades of switches mainly through first pilot lamp and second pilot lamp switching control realization, and first pilot lamp is through first elasticity electrically conductive piece, first connecting piece, control spring and first electrically conductive group constitution control circuit, and the second pilot lamp is through second elasticity electrically conductive piece, second connecting piece again, control spring and second electrically conductive group constitution control circuit, to sum up, can see that the mounting structure of these two sets of pilot lamps is comparatively complicated, and the installation spare part is many, and circuit control structure sets up complicatedly, and it is big to occupy the switch inner space, so that current three grades of switches volume generally accomplishes great, and manufacturing cost is also high, is unfavorable for the production equipment of product and develops to miniaturized trend.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problems that the three-gear switch in the prior art needs to be provided with two groups of indicator lamps to realize the function of lightening the indicator lamps when the switch is closed, the number of the mounted parts is large, the circuit control structure is complex to set, and the occupied space inside the switch is large, so that the three-gear switch which has the advantages of few mounted parts, simple circuit control structure and small occupied space inside the switch can be provided, and the function of lightening the indicator lamps when the switch is closed can be realized by only setting one indicator lamp.

The invention provides a three-gear switch with an indicator light, which comprises a shell and a button which can be arranged on the shell in a deflection way, wherein a rocker contact, two static contacts and a transmission part which is connected with the rocker contact and the button are arranged in the shell, the transmission part is in linkage with the button, the button drives the rocker contact to rotate between the two static contacts in a reciprocating way through the transmission part, and has a closing position for driving the rocker contact to be separated from the two static contacts and an opening position for driving the rocker contact to be contacted with one of the two static contacts, and the three-gear switch also comprises:

the control structure comprises a contact piece arranged on the transmission part, a power-off notch arranged at the middle position of the contact piece, and a conductive piece arranged in the shell and switching between the contact piece and the power-off notch in a sliding manner, wherein the button drives the contact piece to deflect and enables the conductive piece to be in sliding contact with the contact piece when in an opening position, and drives the contact piece to deflect and enables the conductive piece to be in sliding contact with the power-off notch when in a closing position;

and the indicator light is arranged between the transmission component and the button and is respectively and electrically connected with the contact piece and the rocker contact.

In the above-mentioned three-gear switch with indicator light, the conductive member is disposed on one side of the rotation plane of the button and the transmission member, and one end of the conductive member extends out of the bottom of the housing.

In foretell three-gear switch of tape light, drive disk assembly include with the transmission seat that the button linkage set up with set up the actuating lever subassembly of transmission seat bottom, the button passes through the transmission seat drives actuating lever subassembly slides and supports and press the wane contact.

In foretell three-gear switch of tape light, be equipped with on the gear stage with relative mounting platform of electrically conductive piece, mounting platform the back with be equipped with the installation space between the gear stage, contact piece both sides side to installation space one side extension shaping has two portions of bending, two the butt of can bending of portion of bending mounting platform's the back.

In foretell three-gear switch of tape light, the pilot lamp includes through the drive bar subassembly with the first electrically conductive foot that the wane contact electricity is connected, and connect the electrically conductive foot of second of contact piece, mounting platform's front is equipped with the open slot, the electrically conductive foot of second extend peg graft in the open slot, and the contact piece install in by the butt pressure during mounting platform covers.

In foretell three-gear switch of tape light, the outage breach is for setting up the opening structure in contact piece middle part, the both sides of opening structure are the contact piece with two contact surfaces of electrically conductive contact.

In foretell three-gear switch of tape light, be equipped with on the mounting platform and stretch into boss in the outage breach, the contact piece joint is in during the mounting platform with boss surface parallel and level.

In the above-mentioned three-gear switch with indicator light, the other end of the conductive piece is provided with an arc contact, and the arc contact is switched between the contact surface or the surface of the boss in a sliding manner.

In foretell three-gear switch of tape light, the actuating lever subassembly is including setting up the installation cavity of transmission seat bottom with wear to set up in the actuating lever and the spring of installation cavity, be equipped with spring mounting groove in the actuating lever, the spring both ends respectively the butt in installation cavity and spring mounting groove, the spring is right the actuating lever apply the butt in biasing force on the wane contact, first electrically conductive foot stretches into the installation cavity with the counterbalance of spring one end.

In foretell three-gear switch of tape light, the wane contact is V type structure, just is in the length both ends that the V-arrangement of wane contact is most advanced are provided with two spacing pivots, the casing bottom corresponds the vertical two limiting plates that are provided with of spacing pivot, two be provided with two bar spouts, two on the limiting plate respectively relatively in the rotatable restriction of spacing pivot two in the bar spout.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the three-gear switch with the indicator light has the advantages that the contact piece is arranged on the transmission part, the power-off gap is arranged on the contact piece, the transmission part and the contact piece are driven to deflect together when the button is rotated to be opened or closed, so that the conductive piece is switched between the contact piece and the power-off gap in a sliding way, the indicator light is electrically connected with the contact piece and the rocker contact according to the indicator light, the control indicator light can be synchronously lightened or extinguished when the button is opened or closed, an operator is reminded to observe whether the switch is in a working state or not, the structural design has the advantages that the reminding function of the three-gear switch during opening and closing can be realized only by arranging a single indicator light, the existing mode of arranging a plurality of indicator light circuits is avoided, the installation circuits and the structure are simplified, the installation parts are reduced, and the internal space of the switch is small, therefore, the overall volume of the three-gear switch can be smaller, and the development of products towards miniaturization trend is facilitated.

2. According to the three-gear switch with the indicator lamp, the installation platform is arranged to provide the installation position for the contact piece, the installation gap is reserved between the installation platform and the transmission seat, the bending of the bending part is facilitated, the contact piece is independently installed on the installation platform and does not interfere with the driving rod assembly, and the safety of the product in use is improved.

3. According to the three-gear switch with the indicator lamp, the second conductive pin is fixed in the open slot, and then the contact piece is bent and fixed on the mounting platform, so that the contact piece is electrically connected with the second conductive pin, welding and fixing are not needed, operation steps are reduced, the three-gear switch is convenient to mount, the contact piece covers the position of the second conductive pin, the contact is tight and does not expose, safety and reliability are achieved, the contact area between the second conductive pin and the contact piece is increased, and the conductive effect is good.

4. According to the three-gear switch with the indicator lamp, the contact piece is flush with the surface of the boss, so that the resistance of the conductive piece during sliding switching between the contact piece and the power-off notch is reduced, and the switching speed is increased.

5. According to the three-gear switch with the indicator lamp, the conductive piece is the elastic metal sheet, the arc-shaped contact is enabled to be tightly attached to the contact surface or the boss under the action of the elastic force of the conductive piece, the arc-shaped design of the arc-shaped contact has the advantages that the resistance of the conductive piece when the conductive piece is switched to the opening position or the closing position can be reduced, the contact area of the conductive piece and the contact piece is reduced, and the situation that the conductive piece simultaneously touches the contact piece and the power-off notch when the button is switched to the closing position, so that the circuit of the indicator lamp cannot be disconnected and is always in a normally-on state is avoided.

6. According to the three-gear switch with the indicator lamp, the limiting rotating shaft is matched with the limiting plate, so that the limiting rotating shaft slides up and down in the strip-shaped sliding groove when the rocker contact rotates, the rocker contact is prevented from being separated from a preset rotating track when rotating, and the safety of a product in use is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a three-position switch with an indicator light according to the present invention;

FIG. 2 is a top view of the three-position switch with indicator light according to the present invention after the button is hidden;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of the three-position switch with an indicator light according to the present invention after the housing is hidden;

FIG. 5 is a partial enlarged view of the portion C shown in FIG. 4;

FIG. 6 is a schematic view of the indicator light of FIG. 3 mounted on a transmission base;

FIG. 7 is a schematic structural view of a three-position switch with an indicator lamp according to the present invention after hiding a button, a transmission seat and the indicator lamp;

description of reference numerals:

1-a shell; 11-a button; 12-a limiting plate; 13-a strip chute; 14-a limit step;

2-rocker contacts; 21-moving contact; 22-middle pin; 23-rotating the groove; a 24-V shaped tip; 25-limiting rotating shaft;

3, static contact;

4-a transmission component; 41-a transmission seat; 42-a mounting platform; 43-installation clearance; 44-open slots; 45-boss; 46-a mounting cavity; 47-a drive rod; 48-a spring;

51-a contact pad; 52-power-off gap; 53-conducting member; 54-bending part; 55-contact surface; 56-arc contact;

6-indicator light; 61-a first conductive pin; 62-second conductive pin.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the invention provides a three-gear switch with an indicator lamp as shown in fig. 1-7, which comprises a shell 1 and a button 11 which can be deflectively arranged on the shell 1, wherein a rocker contact 2, two static contacts 3 and a transmission component 4 for connecting the rocker contact 2 and the button 11 are arranged in the shell 1, the transmission component 4 is in linkage with the button 11, the button 11 drives the rocker contact 2 to rotate back and forth between the two static contacts 3 through the transmission component 4, and has a closing position for driving the rocker contact 2 to be separated from the two static contacts 3 and an opening position for driving the rocker contact 2 to be contacted with one of the two static contacts 3, and the three-gear switch also comprises:

a control structure, including a contact piece 51 disposed on the transmission component 4, a power cut-off notch 52 disposed at a middle position of the contact piece 51, and a conductive piece 53 disposed in the housing 1 and slidably switched between the contact piece 51 and the power cut-off notch 52, wherein the button 11 drives the contact piece 51 to deflect and the conductive piece 53 to slidably contact the contact piece 51 in an open position, and drives the contact piece 51 to deflect and the conductive piece 53 to slidably contact the power cut-off notch 52 in a closed position;

and the indicator lamp 6 is arranged between the transmission component 4 and the button 11 and is respectively and electrically connected with the contact piece 51 and the rocker contact 2.

The above-mentioned embodiment is the core technical solution of this embodiment, by providing the contact piece 51 on the transmission component 4 and the power-off gap 52 on the contact piece 51, when the button 11 is turned on or off, the transmission component 4 and the contact piece 51 thereof are driven to deflect together, so that the conductive piece 53 is switched in a sliding manner between the contact piece 51 and the power-off gap 52, and is electrically connected with the contact piece 51 and the rocker contact 2 according to the indicator lamp 6, so that the control indicator lamp 6 can be turned on or off synchronously when the button 11 is turned on or off, and further the operator is reminded to observe whether the switch is in a working state, and the advantage of this structural design is that the reminding function of the three-gear switch when turned on or off can be realized only by setting up a single indicator lamp, thereby avoiding the existing mode of setting multiple indicator lamp lines, simplifying the installation lines and the structure, and reducing the installation parts, the occupied switch inner space is small, so that the whole volume of the three-gear switch can be made smaller, the development of products towards miniaturization trend is facilitated, and in the embodiment, the button is made of transparent materials.

As shown in fig. 1 and 4, the conductive member 53 is disposed on one side of the rotation plane of the push button 11 and the transmission member 4, and one end of the conductive member 53 extends out of the bottom of the housing 1, and this structure is configured to realize a sliding contact fit between the contact piece 51 and the conductive member 53 by the reciprocating rotation of the transmission member 4, when the push button 11 is not rotated relative to the housing 1 and is in a horizontal central position, i.e. the position of fig. 1 is the push button 11 is in the closed position, the conductive member 53 contacts the power-off notch 52 of the contact piece 51, so that the conductive member 53 and the contact piece 51 are kept in the power-off state, and the indicator lamp 6 is not lighted; when the button 11 is rotated to a certain angle to the left or right relative to the housing 1, that is, the button 11 is in the open position, the contact piece 51 will contact with the conductive piece 53 after being deflected by the transmission component 4, so as to close the power-on circuit among the rocker contact 2, the indicator light 6, the contact piece 51 and the conductive piece 53. In summary, the button 11 has three controllable gears, and the working state of the three-gear switch can be presented only by the on and off of the single indicator lamp 6.

As a specific structural arrangement, the transmission part 4 includes a transmission seat 41 linked with the button 11, and a driving rod assembly disposed at the bottom of the transmission seat 41, and the button 11 drives the driving rod assembly to slide and press the rocker contact 2 through the transmission seat 41, so that the rocker contact 2 is forced to rotate and can be in fit contact with one of the two stationary contacts 3, and the transmission process is simple and reliable.

As shown in fig. 5, the driving seat 41 is provided with an installation platform 42 opposite to the conductive member 53, so as to provide an installation position for the contact piece 51, an installation gap 43 is provided between the back surface of the installation platform 42 and the driving seat 41, and two side edges of the contact piece 51 extend and form two bending portions 54 to one side of the installation gap 43.

The specific arrangement of the indicator light 6 is described in detail below with reference to fig. 2-6:

as shown in fig. 2 and fig. 6, the indicator light 6 includes a first conductive pin 61 electrically connected to the rocker contact 2 through the driving rod assembly, and a second conductive pin 62 connected to the contact plate 51, the front surface of the mounting platform 42 is provided with an open slot 44, and the second conductive pin 62 is extended and inserted into the open slot 44, such a structure is arranged that the open slot 44 pre-positions the second conductive pin 62, and presses and covers the second conductive pin 62 when the contact plate 51 is mounted on the mounting platform 42, so as to achieve the electrical connection between the contact plate 51 and the second conductive pin 62, without welding and fixing, reduce operation steps, facilitate mounting, and enable the contact plate 51 to cover the second conductive pin 62, so that the contact is tight and unexposed, safe and reliable, and is beneficial to increase the contact area between the second conductive pin 62 and the contact plate 51, the conductive effect is good.

As a specific structural configuration, the power-off notch 52 is an opening structure arranged in the middle of the contact piece 51, two sides of the opening structure are two contact surfaces 55 where the contact piece 51 contacts with the conductive piece 53, the mounting platform 42 is provided with a boss 45 extending into the power-off notch 52, and the contact piece 51 is clamped on the mounting platform 42 and is flush with the surface of the boss 45, so as to ensure that the conductive piece 53 is smooth on the sliding contact surface between the contact piece 51 and the power-off notch 52, reduce the resistance of the conductive piece 53 in sliding switching between the contact piece 51 and the power-off notch 52, and improve the switching speed.

As shown in fig. 5, the other end of the conductive member 53 is provided with an arc-shaped contact 56, the arc-shaped contact 56 slides and switches between the contact surface 55 or the surface of the boss 45, and because the conductive member 53 is an elastic metal sheet, the arc-shaped contact 56 is tightly attached to the contact surface 55 or the boss 45 under the action of its own elastic force, the design of the structure of the arc-shaped contact 56 can reduce the resistance of the conductive member 53 in switching and sliding between the contact piece 51 and the power cut-off notch 52, and also effectively reduce the contact area between the conductive member 53 and the contact piece 51, thereby avoiding the situation that the conductive member 53 touches the contact piece 51 and the power cut-off notch 52 simultaneously when the button 11 is in the closed position, so that the circuit of the indicator light 6 cannot be disconnected and is always in the normally-on state.

The specific arrangement of the driving rod assembly is described in detail below with reference to fig. 3:

the actuating lever subassembly is including setting up the installation cavity 46 of driving seat 41 bottom, with wear to stretch set up in installation cavity 46's actuating lever 47 and spring 48, be equipped with spring mounting groove in the actuating lever 47, the spring 48 both ends respectively the butt in installation cavity 46 and spring mounting groove, actuating lever 47 and spring 48 are the metal part respectively, spring 48 is right actuating lever 47 apply the butt in biasing force on the wane contact 2 makes actuating lever 47 follows button 11 pivoted in-process keeps throughout with reliable contact of wane contact 2, so that actuating lever 47 can drive wane contact 2 rotates, guarantees transmission process's reliability.

As shown in fig. 3 and 6, the first conductive pin 61 extends into the mounting cavity 46 to abut against one end of the spring 48, so that the spring 48 and the driving rod 47 conduct electricity, and the first conductive pin 61 is electrically connected to the rocker contact 2.

As a specific structure, the rocker contact 2 is a V-shaped structure, two movable contacts 21 are disposed corresponding to two fixed contacts 3 at two ends thereof, a middle pin 22 connected to the rocker contact 2 is disposed at the bottom of the housing 1, a rotating groove 23 rotatably connected to a V-shaped tip 24 of the rocker contact 2 is disposed at the top of the middle pin 22, the two fixed contacts 3 respectively include two pins extending out of the bottom of the housing 1, and the rotating groove 23 of the middle pin 22 enables the rocker contact 2 to be reliably contacted with a side wall of one side of the rotating groove 23 all the time when the rocker contact 2 rotates obliquely towards two sides, so that the middle pin 22 is electrically connected to the fixed contacts 3 through the rocker contact 2, and in this embodiment, the middle pin 22 is electrically connected to a live wire in a circuit.

As shown in fig. 4 and 7, the length both ends of the pointed end 24 of V-arrangement are provided with two spacing pivot 25, 1 bottom of casing corresponds two vertical limiting plates 12, two of being provided with two bar spouts 13, two on the limiting plate 12 respectively relatively the rotatable restriction of spacing pivot 25 is in two in the bar spout 13, through spacing pivot 25 with limiting plate 12 mutually support when rocker contact 2 rotates, make spacing pivot 25 is in slide from top to bottom in the bar spout 13, prevent rocker contact 2 breaks away from predetermined rotation track when rotating, security when improving the product use.

As shown in fig. 2 to 3, two sides of the housing 1 are provided with a limit step 14, which is abutted to the button 11 in a matching manner, and the limit step 14 limits the rotation amplitude of the button 11 and the transmission seat 41, thereby preventing the driving rod 47 from being disengaged from the rocker contact 2 due to an excessively large rotation amplitude.

The operation principle of the three-position switch with the indicator light of the present embodiment is explained as follows:

when the button 11 is not rotated in a horizontal centered position relative to the housing 1, referring to fig. 1 and 3, that is, the button 11 is in a closed position, the driving rod 47 at the bottom of the driving seat 41 is located in the V-shaped tip 24 of the rocker contact 2, the rocker contact 2 and the two stationary contacts 3 are respectively in a separated state, and meanwhile, the conductive member 53 and the boss 45 extending into the power-off notch 52 are abutted against each other, so that the conductive member 53 and the contact piece 51 are kept in a power-off state, and at this time, the indicator light 6 is not lit;

when the button 11 rotates a certain angle leftwards or rightwards relative to the housing 1 and abuts against the limit step 14, that is, the button 11 is in an open position, the button 11 drives the transmission seat 41 to rotate, the transmission seat 41 presses the rocker contact 2 through the driving rod 47 so that the rocker contact 2 deflects to contact with one of the two fixed contacts 3 for controlling two working gears of the switch, meanwhile, the contact surface 55 of the contact piece 51 rotates along with the transmission seat 41 and then contacts with the conductive piece 53, so that a power-on loop among the rocker contact 2, the indicator light 6, the contact piece 51 and the conductive piece 53 is switched on, and the indicator light 6 is turned on at this time.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. The utility model provides a three grades of switches of tape light, includes casing (1) and can deflect and set up in button (11) of casing (1), be provided with rocker contact (2), two static contacts (3) in casing (1) and connect rocker contact (2) with transmission part (4) of button (11), transmission part (4) with button (11) linkage sets up, button (11) pass through transmission part (4) drive rocker contact (2) reciprocating rotation between two static contacts (3) to have the drive rocker contact (2) and the closed position of two static contacts (3) separation, and drive rocker contact (2) and the open position of two one of static contacts (3) contact, its characterized in that still includes:

the control structure comprises a contact piece (51) arranged on the transmission component (4), a power-off gap (52) arranged at the middle position of the contact piece (51), and a conductive piece (53) which is arranged in the shell (1) and is switched between the contact piece (51) and the power-off gap (52) in a sliding way, wherein the button (11) drives the contact piece (51) to deflect and enables the conductive piece (53) to be in sliding contact with the contact piece (51) when in an opening position, and drives the contact piece (51) to deflect and enables the conductive piece (53) to be in sliding contact with the power-off gap (52) when in a closing position;

and the indicator lamp (6) is arranged between the transmission component (4) and the button (11) and is respectively and electrically connected with the contact piece (51) and the rocker contact (2).

2. The three-position switch with indicator light as claimed in claim 1, wherein said conductive member (53) is disposed on the side of the rotation plane of said push button (11) and said transmission member (4) and one end thereof protrudes from the bottom of said housing (1).

3. The three-position switch with the indicator lamp is characterized in that the transmission part (4) comprises a transmission seat (41) which is in linkage with the button (11) and a driving rod assembly arranged at the bottom of the transmission seat (41), and the button (11) drives the driving rod assembly to slide to press the rocker contact (2) through the transmission seat (41).

4. The three-position switch with the indicator light as claimed in claim 3, wherein the transmission seat (41) is provided with a mounting platform (42) opposite to the conductive member (53), a mounting gap (43) is arranged between the back surface of the mounting platform (42) and the transmission seat (41), two side edges of the contact piece (51) extend to one side of the mounting gap (43) to form two bending parts (54), and the two bending parts (54) can be bent to abut against the back surface of the mounting platform (42).

5. The three-position switch with the indicator light is characterized in that the indicator light (6) comprises a first conductive pin (61) electrically connected with the rocker contact (2) through the driving rod assembly and a second conductive pin (62) connected with the contact piece (51), an open slot (44) is formed in the front face of the mounting platform (42), and the second conductive pin (62) extends to be inserted into the open slot (44) and is pressed and covered when the contact piece (51) is mounted on the mounting platform (42).

6. The three-position switch with the indicator light as claimed in any one of claims 1 to 5, wherein the power cut-off notch (52) is an opening structure arranged in the middle of the contact piece (51), and two sides of the opening structure are two contact surfaces (55) of the contact piece (51) contacting with the conductive piece (53).

7. The three-position switch with the indicator light as claimed in claim 6, wherein the mounting platform (42) is provided with a boss (45) extending into the power-off notch (52), and the contact piece (51) is flush with the surface of the boss (45) when being clamped on the mounting platform (42).

8. The three-position switch with indicator light as claimed in claim 7, wherein the other end of the conductive member (53) is provided with an arc contact (56), and the arc contact (56) is slidably switched between the contact surface (55) or the surface of the boss (45).

9. The three-position switch with the indicator lamp is characterized in that the driving rod assembly comprises a mounting cavity (46) arranged at the bottom of the transmission seat (41), and a driving rod (47) and a spring (48) which penetrate through the mounting cavity (46), a spring mounting groove is formed in the driving rod (47), two ends of the spring (48) are abutted to the mounting cavity (46) and the spring mounting groove respectively, the spring (48) applies a biasing force to the driving rod (47) to abut against the rocker contact (2), and the first conductive pin (61) extends into the mounting cavity (46) and abuts against one end of the spring (48).

10. The three-position switch with the indicator light as claimed in claim 9, wherein the rocker contact (2) is of a V-shaped structure, two limiting rotating shafts (25) are arranged at two ends of the length of a V-shaped tip (24) of the rocker contact (2), two limiting plates (12) are vertically arranged at the bottom of the shell (1) corresponding to the limiting rotating shafts (25), two strip-shaped sliding grooves (13) are respectively and oppositely arranged on the two limiting plates (12), and the two limiting rotating shafts (25) are rotatably limited in the two strip-shaped sliding grooves (13).

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