CN210110679U - Wall switch with overload protection - Google Patents

Abstract

The utility model provides a take overload protection's wall switch, includes panel holder, panel and installs the protection switch on the panel holder, the protection switch includes the casing and sets up current conducting plate, static contact, moving contact, bimetallic strip, hasp, jump and detain, lever in the casing, and overload protection is reliable and stable, and overall arrangement is reasonable compact moreover, realizes wall switch's overload protection.

Description

Wall switch with overload protection

Technical Field

The utility model relates to a wall switch, concretely relates to take overload protection's wall switch.

Background

The wall switch "refers to an electrical appliance switch installed on a wall for use in connecting and disconnecting a circuit, and is a building electrical switch, which is mostly used in a household small power occasion, and thus it generally has only a function of connecting and disconnecting a circuit, but does not have a function of overload trip protection.

Domestic circuit adopts small-size low voltage circuit breaker to protect usually, but causes the overload problem, often only be the powerful electrical apparatus of individuality such as air conditioner, oven, and the circuit breaker can't carry out overload protection to single electrical apparatus again, in case the overload problem appears and leads to the circuit breaker dropout outage, often can cause the indoor to have a power failure on a large scale, not only causes the various electrical apparatus damages of using easily, when the outage evening moreover, it is very inconvenient to need to touch black the operation circuit breaker and reset.

Therefore, there is a high necessity for a wall switch with overload protection to individually protect high-power home appliances such as air conditioners, ovens, etc.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a take overload protection's wall switch.

The utility model discloses the technical scheme who adopts: a wall switch with overload protection comprises a panel, a panel seat and a protection switch arranged on the panel seat, wherein the protection switch comprises a shell, and a conductive plate, a static contact, a moving contact, a bimetallic strip, a lock catch, a jump buckle and a lever which are arranged in the shell; the conductive plate is arranged on one side in the shell, and the lower end of the conductive plate is connected with a first wiring terminal extending out of the shell; the static contact comprises a wiring board and a static contact, the wiring board is arranged on the other side, opposite to the current conducting plate, in the shell, the static contact is arranged at the upper end of the wiring board, and the lower end of the wiring board is connected with a second wiring terminal extending out of the shell; the moving contact comprises a metal elastic sheet and a moving contact, the metal elastic sheet is transversely arranged in the shell, one end of the metal elastic sheet is connected with the current conducting plate, the moving contact is arranged at the other end of the metal elastic sheet, and the moving contact is correspondingly arranged above the static contact; the double-gold-piece is transversely arranged in the position close to the bottom in the shell, and one end of the double-gold-piece is connected with the current-conducting plate; the lock catch is hinged in the shell, comprises a transversely arranged action part and a longitudinally arranged first buckling part and is of an L-shaped structure, the action part is positioned above the bimetallic strip, the end part of the action part corresponds to the end part of the bimetallic strip, the first buckling part and the metal elastic strip are staggered and extend to the upper part of the metal elastic strip, and a first reset elastic piece for driving the lock catch to reset is arranged between the lock catch and the shell; the jump buckle is hinged in the shell at a position close to the upper end and comprises a second buckling part capable of being buckled with the first buckling part of the lock catch and an extrusion part capable of extruding the metal elastic sheet, and a sliding groove is further formed in the jump buckle; the lever is hinged in the shell, a shaft is arranged on the lever, the lever is inserted into the sliding groove through the shaft and is in linkage fit with the jump buckle, and a second reset elastic piece for driving the lever to reset is further arranged between the lever and the shell.

The shell is provided with a plurality of grooves which are arranged in parallel up and down at the positions corresponding to the static contact and the movable contact, and the side wall of the shell at the position is provided with an opening.

The position of the shell between the double-gold-piece and the lock catch is provided with a first limiting boss, the first limiting boss is in limiting fit with the action part of the lock catch, and the end part of the action part is bent downwards to be close to the double-gold-piece.

The extrusion portion is of an arc-shaped structure and is tangent to the metal elastic sheet.

The bottom of the shell is also provided with an adjusting screw, and the top of the adjusting screw is in contact with the bimetallic strip.

Still include two operating button, two operating button are articulated with the both ends of lever respectively, and two operating button and casing cooperation of sliding to extend to outside the casing.

The casing includes base, lid, well lid, the position that base and lid are close to the bottom is through a rivet riveting, the outer wall that base and lid are close to the upper end is equipped with the ka tai, well lid sets up in base and lid upper end to be equipped with the draw-in groove of ka tai adaptation, well lid and base, lid joint cooperation.

The panel seat is provided with a mounting groove matched with the shell, and second limiting bosses are arranged on two sides of the mounting groove; well lid both sides outer wall is equipped with the elasticity card of taking spacing tooth, protection switch installs in the mounting groove to through the fixed joint of elasticity card and the spacing boss of second.

The utility model has the advantages that: by adopting the scheme, the wall switch with a brand-new structure is provided, compared with the existing wall switch, the wall switch is simple and compact in structure and easy to assemble and assemble, and can realize overload protection and automatic tripping and realize independent protection of individual high-power household appliances.

Drawings

Fig. 1 is a schematic structural diagram of a wall switch with overload protection according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a panel base and a protection switch according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a panel seat according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram 1 of a protection switch according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram 2 of a protection switch according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram 3 of a protection switch according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a lock according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of the jump buckle according to the embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a base according to an embodiment of the present invention.

Fig. 10 is a schematic structural view of a cover in an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-3, a wall switch with overload protection comprises a panel 1, a panel base 2 and a protection switch.

Panel seat 2 is through card angle, screw fixed mounting on the wall, protection switch installs on panel seat 2, panel 1 lid is established on panel seat 2 to be equipped with the logical groove of protection switch adaptation, make protection switch expose on panel 1.

The panel base 2 is provided with a mounting groove 201 matched with the shell 3, and two sides of the mounting groove 201 are provided with second limiting bosses 202; protection switch's 3 both sides outer walls of casing are equipped with the elasticity card 331 of taking spacing tooth, protection switch installs in mounting groove 201 to through the fixed joint of elasticity card 331 and the spacing boss 202 of second.

In addition, the panel 1 and the panel seat 2 are also in clamping fit through a structure of a buckle.

All realize fixed connection through the joint between panel 1, panel seat 2, the protection switch three, not only simple structure installs very conveniently moreover.

As shown in fig. 4-10, the protection switch includes a housing 3, and a conductive plate 4, a stationary contact 5, a movable contact 6, a bimetal 7, a latch 8, a trip 9, and a lever 10 disposed in the housing 3.

Casing 3 includes base 31, lid 32, well lid 33, the position that base 31 and lid 32 are close to the bottom is through a rivet 34 riveting, the outer wall that base 31 and lid 32 are close to the upper end is equipped with ka tai 35, well lid 33 sets up in base 31 and lid 32 upper end to be equipped with the draw-in groove 36 with ka tai 35 adaptation, well lid 33 cooperates with base 31, lid 32 joint, and not only the equipment is convenient, and overall structure is firm stable moreover.

One of them side wall of base 31 is equipped with the first installation draw-in groove with current conducting plate 4 looks adaptation, one of them side in casing 3 is installed in the first installation draw-in groove of current conducting plate 4 embedding, and its lower extreme is connected with the first binding post 11 that extends to the casing 3 outside.

The fixed contact 5 includes a wiring board 501 and a fixed contact 502, a second mounting slot adapted to the wiring board 501 is disposed on the side wall of the other side of the base 31, the wiring board 501 is embedded into the second mounting slot and mounted on the other side of the housing 3 opposite to the conductive plate 4, the fixed contact 502 is mounted on the upper end of the wiring board 501, and the lower end of the wiring board 501 is connected to a second connection terminal 12 extending to the outside of the housing 3.

The movable contact 6 includes a metal spring 601 and a movable contact 602, the metal spring 601 is horizontally disposed in the housing 3, one end of the metal spring is riveted with the conductive plate 4, the movable contact 602 is mounted at the other end of the metal spring, and the movable contact 602 is correspondingly disposed above the stationary contact 502.

The double-gold-piece 7 is transversely established at the position that is close to the bottom in the casing 3, double-gold-piece 7 one end is connected with current conducting plate 4, wherein casing 3 bottom still is equipped with adjusting screw 13, adjusting screw 13 top and double-gold-piece 7 contact can further adjust the distance between double-gold-piece 7 and the hasp 8 through operation adjusting screw 13.

The hasp 8 articulates in casing 3, and it is including the action portion 801 of horizontal setting and the first buckling parts 802 of vertical setting, is "L" type structure, action portion 801 is located two gold sheets 7's top, and its tip is corresponding with two gold sheets 7's tip, first buckling parts 802 and metal shrapnel 601 dislocation and extend to metal shrapnel 601 top, still be equipped with the first elastic component 803 that resets that drives hasp 8 and reset between hasp 8 and the casing 3, first elastic component 803 that resets is the torsional spring usually.

The position of the shell 3 between the bimetallic strip 7 and the lock catch 8 is provided with a first limiting boss 303, the position of the lock catch 8 is limited through the first limiting boss 303, the bimetallic strip is prevented from being in direct contact with the bimetallic strip 7 under the action of the first reset elastic piece, and meanwhile, the end part of the action part 801 is bent downwards to be close to the bimetallic strip 7, so that the distance between the action part and the bimetallic strip 7 is ensured to be close to ensure the overload tripping action.

The jump buckle 9 is hinged in the housing 3 at a position close to the upper end, and includes a second buckling part 901 capable of buckling with the first buckling part 802 of the lock catch 8 and an extrusion part 902 capable of extruding the metal elastic sheet 601, and the jump buckle 9 is further provided with a sliding groove 903.

The pressing portion 902 is of an arc-shaped structure, the pressing portion 902 is tangent to the metal elastic sheet 601, and when the pressing portion 902 presses the metal elastic sheet 601, different positions of the metal elastic sheet 601 during deformation can be better adapted to, stable stress is guaranteed, and the action is reliable.

The lever 10 is hinged in the housing 3, a shaft 101 is arranged on the lever 10, the lever 10 is inserted into the sliding groove 903 through the shaft 101 to be in linkage fit with the jump buckle 9, a second reset elastic element 102 for driving the lever 10 to reset is further arranged between the lever 10 and the housing 3, and the second reset elastic element 102 is usually a torsion spring.

Wherein, still include two operating button 14, two operating button 14 are articulated with the both ends of lever 10 respectively, be equipped with the spout 332 with operating button 14 adaptation on the well lid 33, two operating button 14 and spout 332 sliding fit to outside extending to casing 3, drive lever 10 action by two operating button 14, not only be convenient for operate, the appearance is more pleasing to the eye moreover.

When the switch is closed, the operating lever 10 drives the trip button 9 to rotate, the pressing portion 902 of the trip button 9 presses the metal elastic sheet 601 to bend, so that the moving contact 602 contacts with the stationary contact 502, and meanwhile, the second buckling portion 901 of the trip button 9 is buckled with the first buckling portion 802 of the lock catch 8 to keep the switch in a closed state.

When overload tripping is performed, the bimetallic strip 7 is deformed by heat and contacts with the action part 801 of the latch 8 to push the latch 8 to act, the first buckling part 802 of the latch 8 is separated from the second buckling part 901 of the jump buckle 9, the jump buckle 9 and the lever 10 are reset under the action of the second reset elastic piece 102, the extrusion part 902 of the jump buckle 9 is separated from the metal elastic piece 601, and the metal elastic piece 601 is reset under the action of the elastic force of the metal elastic piece 601, so that the movable contact 602 is separated from the stationary contact 502, and tripping is realized.

By adopting the scheme, the structure is simple and compact, the assembly and the assembly are easy, the overload protection and the automatic tripping can be realized, and the individual protection of individual high-power household appliances can be realized.

In addition, a plurality of grooves 301 arranged in parallel up and down are arranged at the position of the shell 3 corresponding to the fixed contact 502 and the movable contact 602, and an opening 302 is arranged on the side wall of the shell 3 at the position.

When overload tripping is carried out, electric arcs can be generated when the movable contact is separated from the fixed contact, certain potential safety hazards exist, the space of the wall switch is not enough for arranging the arc extinguishing chamber, arc extinguishing is achieved through the grooves 301 and the openings 302 which are arranged in parallel up and down, and electricity safety is further guaranteed.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims (8)

1. A wall switch with overload protection comprises a panel (1), a panel seat (2) and a protection switch arranged on the panel seat (2), wherein the protection switch comprises a shell (3), and a conductive plate (4), a static contact (5), a moving contact (6), a bimetallic strip (7), a lock catch (8), a jump buckle (9) and a lever (10) which are arranged in the shell (3);

the method is characterized in that: the conductive plate (4) is arranged on one side in the shell (3), and the lower end of the conductive plate is connected with a first wiring terminal (11) extending out of the shell (3);

the static contact (5) comprises a wiring board (501) and a static contact (502), the wiring board (501) is arranged on the other side, opposite to the conductive plate (4), in the shell (3), the static contact (502) is installed at the upper end of the wiring board (501), and the lower end of the wiring board (501) is connected with a second wiring terminal (12) extending out of the shell (3);

the moving contact (6) comprises a metal elastic sheet (601) and a moving contact (602), the metal elastic sheet (601) is transversely arranged in the shell (3), one end of the metal elastic sheet is connected with the conductive plate (4), the moving contact (602) is arranged at the other end of the metal elastic sheet, and the moving contact (602) is correspondingly arranged above the fixed contact (502);

the bimetallic strip (7) is transversely arranged in the shell (3) at a position close to the bottom, and one end of the bimetallic strip (7) is connected with the conductive plate (4);

the lock catch (8) is hinged in the shell (3) and comprises a transverse action part (801) and a longitudinal first buckling part (802), the action part (801) is of an L-shaped structure, the end part of the action part corresponds to the end part of the bimetallic strip (7), the first buckling part (802) and the metal elastic strip (601) are staggered and extend to the upper part of the metal elastic strip (601), and a first reset elastic piece (803) for driving the lock catch (8) to reset is further arranged between the lock catch (8) and the shell (3);

the jump buckle (9) is hinged to the position, close to the upper end, in the shell (3) and comprises a second buckling part (901) capable of being buckled with the first buckling part (802) of the lock catch (8) and an extrusion part (902) capable of extruding the metal elastic sheet (601), and a sliding groove (903) is further formed in the jump buckle (9);

the lever (10) is hinged in the shell (3), a shaft (101) is arranged on the lever (10), the lever (10) is inserted into the sliding groove (903) through the shaft (101) to be matched with the jump buckle (9) in a linkage mode, and a second reset elastic piece (102) for driving the lever (10) to reset is further arranged between the lever (10) and the shell (3).

2. A wall switch with overload protection as claimed in claim 1, wherein: a plurality of grooves (301) which are arranged in parallel up and down are arranged on the shell (3) corresponding to the positions of the fixed contact (502) and the movable contact (602), and an opening (302) is formed in the side wall of the shell (3) at the position.

3. A wall switch with overload protection as claimed in claim 1, wherein: the position that casing (3) correspond between bimetallic strip (7) and hasp (8) is equipped with a first spacing boss (303), spacing cooperation of action portion (801) of first spacing boss (303) and hasp (8), the tip of action portion (801) is buckled downwards and is close bimetallic strip (7).

4. A wall switch with overload protection as claimed in claim 1, wherein: the extrusion portion (902) is of an arc-shaped structure, and the extrusion portion (902) is tangent to the metal elastic sheet (601).

5. A wall switch with overload protection as claimed in claim 1, wherein: the bottom of the shell (3) is also provided with an adjusting screw (13), and the top of the adjusting screw (13) is in contact with the bimetallic strip (7).

6. A wall switch with overload protection as claimed in claim 1, wherein: still include two operating button (14), two operating button (14) are articulated with the both ends of lever (10) respectively, and two operating button (14) and casing (3) sliding fit to extend outside casing (3).

7. A wall switch with overload protection as claimed in claim 1, wherein: casing (3) are including base (31), lid (32), well lid (33), base (31) and lid (32) are close to the position of bottom through a rivet (34) riveting, outer wall that base (31) and lid (32) are close to the upper end is equipped with ka tai (35), well lid (33) set up in base (31) and lid (32) upper end to be equipped with draw-in groove (36) with ka tai (35) adaptation, well lid (33) and base (31), lid (32) joint cooperation.

8. A wall switch with overload protection as claimed in claim 7, wherein: the panel base (2) is provided with a mounting groove (201) matched with the shell (3), and second limiting bosses (202) are arranged on two sides of the mounting groove (201); well lid (33) both sides outer wall is equipped with elasticity card (331) of taking spacing tooth, protection switch installs in mounting groove (201) to through elasticity card (331) and the fixed joint of the spacing boss of second (202).

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