阅读说明：本技术 一种带熔断器保护的微动开关传感器结构 (Microswitch sensor structure with fuse protection ) 是由 雷克和 颜天宝 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种带熔断器保护的微动开关传感器结构,包括安装底板、小杯、微动开关机构、弹簧和导热机构,所述小杯设于安装底板顶部,所述微动开关机构包括软托、微动开关、熔断器和热敏电阻,所述弹簧环设于小杯外部,所述导热机构设于软托顶部。本发明通过所述软托包括从前到后设置的熔断器对承托块和基座对承托块和通过所述基座体包括从前到后设置的基座一和基座二,所述基座一包括从前到后设置的熔断器承托块和放置槽等,为用户提供了一种结构简单、安装方便,并且能在电饭煲发生短路或电路异常时,进行安全防护的带熔断器保护的微动开关传感器结构。(The invention discloses a microswitch sensor structure with fuse protection, which comprises an installation bottom plate, a small cup, a microswitch mechanism, a spring and a heat conduction mechanism, wherein the small cup is arranged at the top of the installation bottom plate, the microswitch mechanism comprises a soft support, a microswitch, a fuse and a thermistor, the spring is annularly arranged outside the small cup, and the heat conduction mechanism is arranged at the top of the soft support. According to the microswitch sensor structure with the fuse protection, the soft support comprises the fuse pair supporting block and the base pair supporting block which are arranged from front to back, the base body comprises the base I and the base II which are arranged from front to back, and the base I comprises the fuse pair supporting block and the placing groove which are arranged from front to back, so that the microswitch sensor structure with the fuse protection is simple in structure and convenient to install, and can perform safety protection when a short circuit or a circuit abnormality occurs to an electric rice cooker.)

1. A microswitch sensor structure with fuse protection, comprising:

the mounting bottom plate comprises an external connecting mounting plate hole, a small cup fixing groove and a lead extending hole which are arranged from outside to inside;

the small cup is arranged at the top of the mounting bottom plate and comprises a spring limiting outer arc and a small cup extending connecting pin which are arranged from top to bottom;

the microswitch mechanism comprises a soft support, a microswitch, a fuse and a thermistor, wherein the microswitch is arranged in the small cup through the soft support, the fuse is arranged at the front end of the microswitch, and the thermistor is arranged at the top end of the microswitch;

the spring is annularly arranged outside the small cup;

the heat conducting mechanism is arranged at the top of the soft support and comprises a heat conducting cover and an insulating silicon adhesive tape which are arranged from top to bottom.

2. The microswitch sensor structure with fuse protection of claim 1, wherein the small cup extending connecting legs comprise clamping limit legs respectively opened at the bottom, the angle between the clamping limit legs and the small cup extending connecting legs is more than 90 degrees, the clamping limit legs are limited at the bottom of the small cup fixing groove, and the length of the clamping limit legs is more than the diameter of the small cup fixing groove.

3. The microswitch sensor structure with fuse protection of claim 2, wherein the microswitch comprises a base body, a terminal plate assembly and a limit button, the terminal plate assembly and the limit button are respectively arranged inside the base body.

4. The microswitch sensor structure with fuse protection according to claim 3, wherein the base body comprises a first base and a second base which are arranged from front to back, the first base comprises a first fuse bearing block and a first placing groove which are arranged from front to back, the second base comprises a limit button hole, a second base bearing block, a second placing groove and a rivet, the limit button hole is arranged at the right end of the second base, the first base bearing block and the second placing groove are arranged at the top end of the second base from back to front, the first base and the second base are connected through the rivet, the second placing groove and the first placing groove are connected in a matched mode and form a placing groove, the thermistor is arranged in the placing groove and comprises a silicon rubber pad arranged at the bottom, the second placing groove comprises extension limiting holes respectively arranged at the front end, the thermistor (the left end and the right end are arranged in the extension limiting holes, and by extending spacing hole spacing, the fuse is located in the fuse bearing piece, limit button cooperatees with the limit button hole, the length and the width on limit button top all are greater than the length and the width in limit button hole, just limit button is spacing by the limit button hole.

5. The microswitch sensor structure with fuse protection of claim 4, wherein the soft support comprises a fuse pair support block and a base pair support block arranged from front to back, the fuse pair support block and the base support block are respectively arranged at the top of the fuse pair support block and the top of the base pair support block, and the microswitch is arranged inside the small cup through the support of the fuse pair support block and the base support block in the soft support.

6. A fuse protected microswitch sensor configuration according to claim 5, it is characterized in that the terminal piece assembly comprises a normally open terminal, a normally closed terminal, a bracket terminal, a movable piece, a movable reed and a lever, the normally open terminal, the normally closed terminal and the bracket terminal are respectively clamped and inserted at the front end of the second base from left to right, the normally open terminal and the bracket terminal comprise induction contact pieces respectively arranged at the top, the extending ends at the left and right ends of the thermistor are respectively contacted with the induction contact pieces, one end of the lever is propped against the bracket terminal, one end of the movable spring plate is propped against the bracket terminal, the other ends of the lever and the movable spring plate are respectively propped against the movable plate, the movable piece is driven by a lever, a movable contact is arranged at the left end head of the movable piece, a static contact is arranged at the top end of the normally closed terminal and is in contact with the movable contact, and the lever is driven by a limit button.

Technical Field

The invention relates to the technical field of sensors, in particular to a microswitch sensor structure with fuse protector.

Background

The structure of the microcomputer dry-burning prevention sensor of the existing electric cooker has the working principle that: when the inner pot is put down, the whole sensor moves downwards, the spring is compressed, the mounting bottom plate presses the button downwards, and when the button is pressed downwards, the movable sheet is triggered under the action of the lever to trigger the action of the movable spring piece, so that the movable contact and the fixed contact of the movable sheet are separated, the normally closed terminal of the microswitch is disconnected with the bracket terminal, and the thermistor connected with the normally open terminal and the bracket starts to work; when the inner pot is taken out, the whole sensor moves upwards, the movable piece restores the original state, the mounting bottom plate loosens the button, when the button restores upwards, the movable piece automatically enables the movable contact of the movable piece to be communicated with the static contact again under the action of the lever, the normally closed terminal of the microswitch is electrified with the support terminal, and the thermistor connected with the normally open terminal and the support terminal does not work.

Disclosure of Invention

The invention aims to solve the technical problem of providing a microswitch sensor structure with fuse protection, which has simple structure and convenient installation and can carry out safety protection when the electric cooker is in short circuit or circuit abnormity.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a microswitch sensor structure with fuse protection comprising:

the mounting bottom plate comprises an external connecting mounting plate hole, a small cup fixing groove and a lead extending hole which are arranged from outside to inside;

the small cup is arranged at the top of the mounting bottom plate and comprises a spring limiting outer arc and a small cup extending connecting pin which are arranged from top to bottom;

the microswitch mechanism comprises a soft support, a microswitch, a fuse and a thermistor, wherein the microswitch is arranged in the small cup through the soft support, the fuse is arranged at the front end of the microswitch, and the thermistor is arranged at the top end of the microswitch;

the spring is annularly arranged outside the small cup;

the heat conducting mechanism is arranged at the top of the soft support and comprises a heat conducting cover and an insulating silicon adhesive tape which are arranged from top to bottom.

Furthermore, the small cup extending connecting legs comprise clamping limit legs which are respectively arranged at the bottom, the angle between the clamping limit legs and the small cup extending connecting legs is larger than 90 degrees, the clamping limit legs are limited at the bottom of the small cup fixing groove, and the length of the clamping limit legs is larger than the diameter of the small cup fixing groove.

Further, micro-gap switch includes the base body, terminal piece assembly and limit button locate the base internal portion respectively.

Further, the base body comprises a first base and a second base which are arranged from front to back, the first base comprises a first fuse bearing block and a first placing groove which are arranged from front to back, the second base comprises a limiting button hole, a first base bearing block, a second placing groove and a rivet, the limiting button hole is formed in the right end of the second base, the first base bearing block and the second placing groove are arranged at the top end of the second base from back to front, the first base and the second base are connected through the rivet, the second placing groove is connected with the first placing groove in a matched mode and forms a placing groove, the thermistor is arranged in the placing groove and comprises a silica gel pad arranged at the bottom, the second placing groove comprises extending limiting holes respectively arranged at the front ends, the left end and the right end of the thermistor extend into the extending limiting holes and are limited by the extending limiting holes, the fuse is arranged in the fuse bearing block, the limiting button is matched with the limiting button holes, the length and the width of the top end of the limit button are both larger than those of the limit button hole, and the limit button is limited by the limit button hole.

Further, soft support is including the fuse that sets up from the front to the back to the bearing piece to bearing block and base, fuse bearing block and base bearing block are located the fuse respectively and are to bearing block and base to bearing block top, micro-gap switch passes through fuse bearing block and base bearing block and locates inside the small cup in the soft bearing that holds in the palm.

The terminal piece assembly comprises a normally open terminal, a normally closed terminal, a support terminal, a movable piece, a movable contact piece and a lever, the normally open terminal, the normally closed terminal and the support terminal are respectively clamped at the front ends of the two bases from left to right, the normally open terminal and the support terminal comprise induction contact pieces respectively arranged at the tops, the extending ends of the left end and the right end of the thermistor are respectively contacted with the induction contact pieces, one end of the lever is abutted against the support terminal, one end of the movable contact piece is abutted against the support terminal, the other ends of the lever and the movable contact piece are respectively abutted against the movable piece, the movable piece is driven by the lever, a movable contact point is arranged at the end of the left end of the movable piece, a static contact point is arranged at the top end of the normally closed terminal, the static contact point is contacted with the movable contact point, and the lever is driven by a limit button.

The invention has the beneficial effects that:

according to the microswitch sensor structure with the fuse protection, the soft support comprises the fuse pair supporting block and the base pair supporting block which are arranged from front to back, the base body comprises the base I and the base II which are arranged from front to back, and the base I comprises the fuse pair supporting block and the placing groove which are arranged from front to back, so that the microswitch sensor structure with the fuse protection is simple in structure and convenient to install, and can perform safety protection when a short circuit or a circuit abnormality occurs to an electric rice cooker.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is one of the perspective views of the present invention;

FIG. 3 is a second perspective view of the present invention;

FIG. 4 is a schematic structural diagram of a microswitch mechanism of the present invention;

FIG. 5 is a second schematic view of the microswitch mechanism of the present invention.

FIG. 6 is a third schematic view of the microswitch mechanism of the present invention;

FIG. 7 is a fourth schematic view of the microswitch mechanism of the present invention;

FIG. 8 is a fifth schematic view of the microswitch mechanism of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

According to the description of fig. 1-8:

a microswitch sensor structure with fuse protection comprising:

the installation bottom plate 1 comprises an external connection installation plate hole 11, a small cup fixing groove 12 and a lead extension hole 13 which are arranged from outside to inside;

the small cup 2 is arranged at the top of the mounting bottom plate 1 and comprises a spring limiting outer arc 21 and a small cup extending connecting pin 22 which are arranged from top to bottom;

the micro-switch mechanism 3 comprises a soft support 31, a micro-switch 32, a fuse 33 and a thermistor 34, wherein the micro-switch 32 is arranged in the small cup 2 through the soft support 31, the fuse 33 is arranged at the front end of the micro-switch 32, and the thermistor 34 is arranged at the top end of the micro-switch 32;

the spring 4 is annularly arranged outside the small cup 2;

the heat conducting mechanism 5 is arranged on the top of the soft support 31 and comprises a heat conducting cover 51 and an insulating silica gel paste 52 which are arranged from top to bottom.

Because the small cup extending connecting leg 22 comprises the clamping limiting legs 221 which are respectively arranged at the bottom, the angle between the clamping limiting legs 221 and the small cup extending connecting leg 22 is more than 90 degrees, the limit clip 221 is limited at the bottom of the small cup fixing groove 12, the length of the limit clip 221 is larger than the diameter of the small cup fixing groove 12, and the spring 4 is annularly arranged outside the small cup 2 and is abutted against the mounting bottom plate 1 by a spring limiting outer arc 21, therefore, when the user uses the invention, when the external electric cooker liner is pressed on the top of the invention, the pressing force can contact with the heat conducting mechanism 5, then, the small cup 2 is pressed, so that the spring 4 is compressed, thereby the invention is contracted, the spring 4 is used, so that the damage of the electric cooker can be avoided at the moment when the electric cooker liner is pressed due to overlarge physical gravity, and the integral reset of the electric cooker can be realized through the rebound of the spring 4 after the electric cooker liner is removed.

The microswitch 32 comprises a base body 321, a terminal plate assembly 322 and a limit button 323, wherein the terminal plate assembly 322 and the limit button 323 are respectively arranged inside the base body 321.

Because the base body 321 includes a first base 3211 and a second base 3212 arranged from front to back, the first base 3211 includes a fuse holder block 32111 and a first placement groove 32112 arranged from front to back, the second base 3212 includes a limit button hole 32121, a second base holder block 32122, a second placement groove 32123 and a rivet 32124, the limit button hole 32121 is arranged at the right end of the second base 3212, the first base holder block 32122 and the second placement groove 32123 are arranged from back to front at the top end of the second base 3212, the first base 3211 and the second base 3212 are connected by the rivet 32124, the second placement groove 32123 and the first placement groove 32112 are connected in a matching manner to form a placement groove, the thermistor 34 is arranged in the placement groove, including a silicone pad 341 arranged at the bottom, the second placement groove 32123 includes an extension limit hole 321231 respectively arranged at the front end, the left and right ends of the thermistor 34 are extended and arranged in an extension limit hole 321231 and are limited by an extension limit hole 321231, the fuse 33 is arranged in the fuse bearing block 32111, the limit button 323 is matched with the limit button hole 32121, the length and width of the top end of the limit button 323 are both greater than those of the limit button hole 32121, and the limit button 323 is limited by the limit button hole 32121, so when a user uses the electric cooker, the thermistor 34 is tightly arranged on the top of the microswitch 32 through the silica gel pad 341 by using the placement groove, the damage caused by direct contact with the microswitch 32 can be prevented, the fixed limit of the thermistor 34 can be realized by extending the limit hole 321231, the contact conduction between the thermistor and the microswitch 32 is ensured, the fuse 33 is firmly arranged in the center of the front end of the microswitch 32 by using the fuse bearing block 32111, the accurate temperature from the outside can be directly sensed during use, and the electric cooker can be used as a primary protection system, the bottom secondary protection system combined on the heating plate of the electric cooker can realize safety protection and prevent safety accidents when short circuit or abnormity occurs.

Because the soft holder 31 comprises the fuse pair bearing block 311 and the base pair bearing block 312 which are arranged from front to back, the fuse bearing block 32111 and the base bearing block 32122 are respectively arranged at the tops of the fuse pair bearing block 311 and the base pair bearing block 312, and the microswitch 32 is arranged inside the small cup 2 through the bearing of the fuse bearing block 32111 and the base bearing block 32122 in the soft holder 31, when a user uses the temperature sensing device, the microswitch 32 can be tightly embedded in the soft holder 31 through the use of the bearing blocks, and can be stably arranged at the top of the small cup 2 through the soft holder 31 for use, and the position of the microswitch 32 can be limited to prevent the position from shaking, thereby affecting the normal temperature sensing use of the temperature sensing device, and ensuring the tightness of the arrangement of the fuse 33.

Because the terminal piece assembly 322 includes the normally open terminal 3221, the normally closed terminal 3222, the bracket terminal 3223, the movable piece 3224, the movable contact piece 3225 and the lever 3226, the normally open terminal 3221, the normally closed terminal 3222 and the bracket terminal 3223 are respectively inserted into the front end of the second base 3212 from left to right, the normally open terminal 3221 and the bracket terminal 3223 include the sensing contact piece 3227 respectively disposed at the top, the extending ends of the left and right ends of the thermistor 34 are respectively contacted with the sensing contact piece 3227, one end of the lever 3226 is abutted against the bracket terminal 3223, one end of the movable contact piece 3225 is abutted against the bracket terminal 3223, the other ends of the lever 3226 and the movable contact piece 3225 are respectively abutted against the movable piece 3224, the movable piece 3224 is driven by the lever 3226, the movable contact point 32241 is disposed at the left end of the movable piece 3224, the stationary contact point 32221 is disposed at the top end of the normally closed terminal 3222, the stationary contact point 32221 is contacted with the movable contact point 32241, and the lever 3226 is driven by the limit button 323, therefore, when the user uses the present invention, the position of the position-limiting button 323 is limited by the position-limiting button hole 32121 when the position-limiting button 323 is used, which may cause a driving error, when the position-limiting button 323 moves downwards, the movable piece 3224 loses the upward driving force of the position-limiting button 323, the movable piece 3224 rotates the left end of the movable piece 3224 downwards and the right end thereof downwards by the driving action of the movable contact piece 3225 under the action of the lever 3226 as a fulcrum, so as to drive the movable contact point 32241 upwards, so as to separate the movable contact point 32241 from the fixed contact point 32221, at this time, the thermistor 34 respectively contacting with the normally open terminal 3221 and the top of the support terminal 3223 starts to drive, and when the position-limiting button 323 releases the pressure and moves upwards, the movable piece 3224 automatically rotates the left end of the movable piece 3224 downwards by triggering the movable contact piece 3225 under the action of the lever 3226 as a fulcrum, thereby driving the movable contact 32241 to be connected with the fixed contact 32221 again, in real time, the normally closed terminal 3222 of the microswitch 32 is electrified with the bracket terminal 3223, and the thermistor 34 connected with the normally open terminal 3221 and the bracket terminal 3223 is disconnected without driving.

When a user uses the invention, when the limit button 323 of the microswitch 32 contacts the installation bottom plate 1, the limit button 323 is limited by the limit button hole 32121, and accessories such as the movable piece 3224 and the like are not pressed to the bottom of the microswitch 32, so that after the movable and fixed contacts in the microswitch 32 are separated, the limit button 323 continues to keep a proper stroke, and at the moment, the limit button 323 does not move downwards any more, thereby ensuring that the accessories in the microswitch 32 are not deformed, further ensuring that the accessories in the microswitch 32 move smoothly, and not influencing the work due to poor contact or no rebound, thereby ensuring that the action is reliable and the performance is stable.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.