CN209947751U

CN209947751U - Locking device of temperature controller contact switch

Info

Publication number: CN209947751U
Application number: CN201921100102.5U
Authority: CN
Inventors: 杨强; 郑和生; 王明龙
Original assignee: ZHEJIANG JIATAI ELECTRICAL APPLIANCE MANUFACTURE CO Ltd
Current assignee: ZHEJIANG JIATAI ELECTRICAL APPLIANCE MANUFACTURE CO Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-01-14
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a locking device of temperature controller contact switch, includes the contact switch that drives the movable contact arm through the driving piece on the temperature controller main casing body, its characterized in that: still include the locking device of contact switch, locking device including install the rectangular projectile body on the main casing body, connect the lug in the driving piece lower part, with the lower controllable frame that resets of elastic movement about the connector linkage, the free end of rectangular projectile body correspond the cooperation with the lug under the effect of frame that resets and realize the spacing locking of driving piece, locking device has utilized the elastic position obstacle of rectangular projectile body to realize the locking, this temperature controller contact switch's locking device design is dexterous, rational in infrastructure, simple and convenient compact, contact switch's locking is firm, all is suitable for to contact switch in the temperature controller.

Description

Locking device of temperature controller contact switch

Technical Field

The utility model relates to a locking device especially relates to a locking subassembly of temperature sensitive controller contact switch for electric tea set class electrical apparatus.

Background

Current electric tea set electrical apparatus adopts contact switch to realize preventing dry combustion method or other functions, and contact switch generally adopts the torsional spring to come the control contact switch action, and it nevertheless has strict accurate requirement to the position and the distance and the torsion at torsional spring both ends, and its torsional spring position distance of temperature controller of different specifications and torsion are different again, and this causes very big mismatching rate, and the torsional spring is extravagant very big. And the contact switch is generally more dexterous, and the stability of mounted position, applicable environment and control also is the key of considering.

Disclosure of Invention

An object of the utility model is to provide a can simple structure, small, the locking device of the firm temperature controller contact switch of locking to the defect that prior art exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a locking device of temperature controller contact switch, includes the contact switch that drives the movable contact arm through the driving piece on the main casing body of temperature controller, still includes the locking device of contact switch, locking device including installing rectangular projectile body on the main casing body, connect the lug in the driving piece lower part, with the frame that resets of controllable elastic movement about the lower connector linkage, the free end of rectangular projectile body correspond the cooperation with the lug under the effect of frame that resets and realize the spacing locking of driving piece, the elastic position obstacle through rectangular projectile body realizes the locking of contact switch.

As an improvement: the position of the near supporting piece on the main shell body is also provided with a limit cover covering the free end of the long-strip projectile body, and the free end of the long-strip projectile body can move left and right below the limit cover.

As an improvement: the device comprises a U-shaped projectile body, wherein a left support arm and a right support arm of the U-shaped projectile body are respectively long-strip projectile bodies of a left locking device and a right locking device.

As an improvement: reset and be door type frame, promptly reset and put up including two stabilizer blades about can spacing on the main casing body, connect the connection crossbearer between two stabilizer blades, respectively establish to one side or the slant is protruding to be located support upper portion and be connected the shrink guide portion between crossbearer both ends bottom surface, shrink guide portion inwards protrusion in vertical direction about two stabilizer blades, when the unblock of contact switch, reset and put down, support through reset and put up shrink guide portion and push away two support arms about the U type elastomer and be rectangular elastomer, make two support arms inwards move about the U type elastomer, the driving piece is kept away from to rectangular elastomer free end, realizes the unblock of contact switch.

The utility model discloses a locking device of temperature controller contact switch, locking device have utilized the elastic position obstacle of rectangular projectile body to realize the locking, when inserting with the lower connector of temperature sensitive controller complex, reset frame loosens the restriction to rectangular projectile body middle section, and driving piece lug exposes in main casing body upper surface at the top, and rectangular projectile body free end is reliable to driving piece lower part lug outer wall, and locking device standby; when the contact switch acts, namely when the actuator is actuated, the driving piece moves downwards in a linkage manner to enable the movable end of the contact arm to jump downwards, meanwhile, the lug of the driving piece sinks, the free end of the long-strip elastic body moves downwards to the position above the lug under the action of the elastic force of the free end of the long-strip elastic body and abuts against the outer wall of the upper part of the driving piece, and the locking of the action state of the contact switch is realized; when external force drives the reset frame to reset or remove the external force on the reset frame, the reset frame elastically moves downwards, the lower inner wall of the reset frame pushes against the middle section of the long-strip projectile body to force the free end of the long-strip projectile body to be away from the driving piece, the contact switch is unlocked, and in the state, when the actuator resets, the movable contact arm can jump upwards, namely, the contact switch can reset. The locking device of the temperature controller contact switch is flexible in design, reasonable in structure, simple, convenient and compact, the contact switch is stably locked, the locking device is suitable for all the contact switches in the temperature controller, and various functions can be realized according to the positions and types of the contact switches. The locking device of the design has no requirement on the placement position of the gravity center of the equipment, so that the whole product is more suitable for the environment or the field.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of a locking device of a temperature controller contact switch of the present invention.

Fig. 2 is an exploded view of a locking device of the thermostat contact switch of fig. 1.

Detailed Description

As shown in fig. 1 and 2, an embodiment of the locking device for a temperature controller contact switch of the present invention comprises a main housing 1, a fixing plate 2 fixedly mounted on the main housing 1, a left actuator 3 and a right actuator 3 fixedly mounted on the fixing plate 2, a plurality of concentric cylindrical ring electrodes are arranged in the annular groove on the back surface of the main shell 1 and are connected with a plurality of corresponding lugs arranged on the front surface of the main shell, one or more of the terminal strips is/are provided with a contact switch, the housing of the embodiment is provided with two contact switches corresponding to the two actuators 3 respectively, the contact switch comprises a fixed contact, a movable contact arm 4, a driving piece 11, a supporting piece 12 with a limit hole 11-1 for supporting the limit driving piece 11, the contact switch is a dry-burning-proof electric shock switch, and the driving piece 11 is an auxiliary ceramic rod actuated by the metal actuator 3.

The supporting member 12 is integrally formed on the housing, and the supporting member 12 is inserted into the driving member 11 through the central through hole to support the driving member 11. The movable end of the movable contact arm is arranged below the actuator 3, the movable end of the movable contact arm is provided with a contact matched with the static contact, and the driving piece 11 passes through the limiting hole 11-1 of the supporting piece and is erected between the movable contact arm and the actuator; the two contact switches are provided with locking devices, and the contact switches are locked through elastic position barriers of the long elastic bodies. The locking device comprises a long elastic body 7-1 arranged on the main shell, a convex block 11-1 connected to the lower part of the driving piece 11, and a reset frame 6 which is linked with the lower connector and can control up-down elastic movement. In order to save cost and make it multifunctional, the long-strip bullets 7-1 in the two locking devices of the present embodiment are connected into a U-shaped bullet 7, that is, the left and right arms of the U-shaped bullet 7 are the long-strip bullets 7-1 of the left and right locking devices. The free end of the long-strip projectile body 7-1 is correspondingly matched with the convex block 11-1 under the action of the reset frame 6 to realize the limiting locking of the driving piece 11, in order to simultaneously control the locking devices at the left side and the right side and reduce the volume, the reset frame 6 of the embodiment is a door-shaped frame, namely, the reset frame 6 comprises a left support leg 6-1 and a right support leg 6-1 which can be limited on the main shell, a connecting transverse frame 6-2 connected between the two support legs, and contraction guide parts 6-3 which are respectively obliquely or obliquely and convexly arranged on the upper part of the support and between the bottom surfaces at the two ends of the connecting transverse frame 6-2, and the contraction guide parts 6-3 are inwards protruded out of the left support leg 6-1 and the.

When a lower connector matched with the temperature sensitive controller is inserted, the reset frame 6 loosens the limitation on the middle section of the long elastic body 7-1, the top end of the convex block of the driving piece 11 is exposed out of the upper surface of the main shell, the free end of the long elastic body 7-1 can be reliably connected to the outer wall of the convex block 11-1 at the lower part of the driving piece 11, and the locking device is in standby; when the contact switch acts, namely the movable end of the movable contact arm is driven by the actuator 3, the driving piece 11 moves downwards in a linkage manner to enable the movable end of the movable contact arm to jump downwards, the contact on the movable contact arm is separated from the fixed contact, meanwhile, the lug of the driving piece 11 sinks, the free end of the long-strip elastomer 7-1 moves downwards to the upper part of the lug under the action of the self elasticity and abuts against the outer wall of the upper part of the driving piece 11, and the action state of the contact switch is locked; the lower connector is separated from the temperature sensitive controller, the reset frame 6 moves downwards elastically, the reset frame 6 contracts the guide part 6-3 to push against the left support arm and the right support arm of the U-shaped elastomer 7, namely the long-strip elastomer 7-1, so that the left support arm and the right support arm of the U-shaped elastomer 7 move inwards, the free end of the long-strip elastomer 7-1 is far away from the driving part 11, and the unlocking of the contact switch is realized. In this state, when the dual actuator 3 is reset, the movable contact arm may jump up, and the movable contact and the stationary contact are reset, that is, the contact switch is reset. In the implementation, the locking device is arranged on the dry-burning-resistant electric contact switch to realize the function of preventing secondary dry burning, and the locking device can be applied to other contact switch positions to realize the corresponding function through state locking. The self-locking assembly is internally provided with no torsion spring piece, so that the influence of the elasticity and the curvature position of the torsion spring piece is avoided, the strip-shaped elastic body is flatly arranged on the shell, the integral volume cannot be increased, and the assembly is very convenient.

In order to avoid the free end of the long-strip projectile body 7-1 from jumping upwards and separating and improve the stability of the locking device, a limiting cover 5 covering the free end of the long-strip projectile body 7-1 is further arranged on the main shell body at a position close to the support member 12, and the free end of the long-strip projectile body 7-1 can move left and right below the limiting cover.

In order to facilitate the assembly and the circuit connection of the whole machine, the volume is reduced and the structure of the temperature heating bottom surface is simplified, the fixing plate is further provided with 8-shaped fixing holes 10 for fixing a temperature sensor (not shown in the figure), namely, the 8-shaped fixing holes 10 comprise guide insertion holes 10-1 with the diameter larger than that of the temperature sensor, shrinkage fixing holes 10-2 communicated with the guide insertion holes 10-1 and used for clamping and fixing the temperature sensor, and shrinkage necks 10-3 communicated between the guide insertion holes 10-1 and the shrinkage fixing holes 10-2. The shell is provided with two wiring terminals electrically connected with the temperature sensor. The contracting neck 10-3 has not only a guiding function but also an anti-slip function. The periphery of the temperature sensor is provided with a clamping groove (not marked in the figure) matched with the contraction fixing hole 10-2 and the contraction neck part 10-3. The temperature sensor can be directly assembled and fixed with a temperature sensor clamping groove in a clamping mode through the 8-shaped fixing hole 10 before the temperature controller leaves a factory, the temperature sensor is not required to be assembled additionally when the temperature controller is assembled, in the aspect of wire connection, the shell wiring terminal is directly exposed out of one end part and connected with the outside, wiring is facilitated, and the problem that the structure below the whole temperature controller is complex and wiring errors are prone to occurring is effectively solved.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a locking device of temperature controller contact switch, includes the contact switch that drives movable contact arm (4) through driving piece (11) on the temperature controller main casing body (1), its characterized in that: still include the locking device of contact switch, locking device including installing rectangular body (7-1) on main casing body (1), connecting lug (11-1) in driving piece (11) lower part, with lower controllable elastic movement's of connector linkage frame (6) that resets from top to bottom, the free end of rectangular body (7-1) correspond the cooperation with lug (11-1) under the effect of frame (6) that resets and realize the spacing locking of driving piece (11), realize the locking of contact switch through the elastic position obstacle of rectangular body.

2. The locking device of a thermostat contact switch of claim 1, wherein: a limit cover (5) covering the free end of the long-strip projectile body (7-1) is further arranged at the position, close to the support member (12), on the main casing body, and the free end of the long-strip projectile body (7-1) can move left and right below the limit cover.

3. Locking device of a thermostat contact switch according to claim 1 or 2, characterized in that: the device comprises a U-shaped projectile body (7), wherein the left and right support arms of the U-shaped projectile body (7) are respectively long projectile bodies (7-1) of a left locking device and a right locking device.

4. Locking device of a thermostat contact switch according to claim 1 or 2, characterized in that: the reset frame (6) is a door-shaped frame, namely the reset frame (6) comprises a left support leg (6-1) and a right support leg (6-1) which can be limited on the main shell, a connecting cross frame (6-2) connected between the two support legs, and contraction guide parts (6-3) which are respectively obliquely arranged or obliquely and convexly arranged on the upper part of the support frame and between the bottom surfaces of the two ends of the connecting cross frame (6-2), wherein the contraction guide parts (6-3) inwards protrude out of the left support leg and the right support leg (6-1) in the vertical direction, when the contact switch is unlocked, the reset frame (6) moves downwards, the contraction guide parts (6-3) of the reset frame (6) are used for pushing the left support arm and the right support arm of the U-shaped elastomer (7), namely the strip elastomer (7-1), so that the left support arm and the right support arm of the U-shaped elastomer (7) move inwards, and the, and unlocking the contact switch.

5. The locking device of a thermostat contact switch of claim 3, wherein: the reset frame (6) is a door-shaped frame, namely the reset frame (6) comprises a left support leg (6-1) and a right support leg (6-1) which can be limited on the main shell, a connecting cross frame (6-2) connected between the two support legs, and contraction guide parts (6-3) which are respectively obliquely arranged or obliquely and convexly arranged on the upper part of the support frame and between the bottom surfaces of the two ends of the connecting cross frame (6-2), wherein the contraction guide parts (6-3) inwards protrude out of the left support leg (6-1) and the right support leg (6-1) in the vertical direction, when the contact switch is unlocked, the reset frame (6) moves downwards, the contraction guide parts (6-3) of the reset frame (6) are used for pushing the left support arm and the right support arm of the U-shaped projectile body (7), namely the strip projectile body (7-1), so that the left support arm and the right support arm of the U-shaped projectile body (, and unlocking the contact switch.