CN220914111U

CN220914111U - Bipolar probe type temperature controller

Info

Publication number: CN220914111U
Application number: CN202322386657.3U
Authority: CN
Inventors: 肖喜阳; 钟超
Original assignee: Guangdong Deqin Electric Appliance Co ltd
Current assignee: Guangdong Deqin Electric Appliance Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-05-07
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses a bipolar probe type temperature controller, which is provided with an operation direction, and comprises: a housing; mounted to the housing: a liquid expansion control assembly; an operating structure, the liquid expansion control assembly driving the operating structure to move in an operating direction; the operation structure is provided with two pole control parts; the two pole loops comprise a fixed contact and a movable contact, wherein one end of the fixed contact is provided with a fixed contact, one end of the movable contact is provided with a movable contact, and the fixed contact and the movable contact are correspondingly arranged; the pole control part controls the movable contact to control the movable contact to be far away from the fixed contact. Compared with the structure of adopting the unipolar circuit to break in the prior art, the bipolar circuit is safer and more reliable to break at the same time.

Description

Bipolar probe type temperature controller

Technical Field

The utility model relates to the technical field of temperature controllers, in particular to a bipolar probe type temperature controller.

Background

The temperature controller is widely used for household electric heating appliances such as electric heating fans, electric water heaters, electric ovens, electric frying pans and the like and industrial heating equipment. There is liquid expansion formula temperature controller on the market, and liquid expansion formula temperature controller's theory of operation is: the liquid working medium sealed in the temperature sensing bag expands when heated, and is transmitted to the diaphragm capsule through the capillary tube to enable the diaphragm capsule to generate displacement so as to push the micro switch to be disconnected. However, the existing liquid expansion type temperature controller generally only controls one circuit, namely, the circuit connected with a live wire or a zero wire is independently controlled, and when the temperature controller is disconnected, the circuit is still connected with a power grid, so that the safety performance is poor.

And the rated current of the temperature controller on the market is 15A, the current which can be carried is smaller, and the temperature controller is not suitable for a heavy current use scene.

Disclosure of utility model

The utility model aims to solve the technical problems that: the bipolar probe-type temperature controller is provided to solve one or more technical problems existing in the prior art, and at least provides a beneficial choice or creation condition.

The utility model solves the technical problems as follows:

Bipolar probe formula temperature controller is equipped with the operation direction, the temperature controller includes:

A housing;

Mounted to the housing:

a liquid expansion control assembly;

An operating structure, the liquid expansion control assembly driving the operating structure to move in an operating direction; the operation structure is provided with two pole control parts;

The two pole loops comprise a fixed contact and a movable contact, wherein one end of the fixed contact is provided with a fixed contact, one end of the movable contact is provided with a movable contact, and the fixed contact and the movable contact are correspondingly arranged;

The pole control part controls the movable contact to control the movable contact to be far away from the fixed contact.

Through the technical scheme, when the temperature of the part to be detected by the electric appliance rises, the liquid expansion control assembly can drive the operation structure to move in the direction away from the liquid expansion control assembly, so that the operation structure can move by itself when the temperature of the part to be detected by the electric appliance rises. When the operation structure moves in a direction away from the liquid expansion control component, the two pole control parts can drive the movable contact to move, so that the movable contact is separated from the fixed contact, and the circuit is disconnected. The bipolar circuit can be simultaneously disconnected through the operation structure, and compared with a structure adopting a unipolar circuit to be disconnected in the prior art, the bipolar circuit is safer and more reliable to be simultaneously disconnected.

As a further improvement of the above technical solution, the fixed contact and the movable contact each include a connection portion and a contact portion, the connection portion is fixed with the fixed contact or the movable contact, the contact portion of the fixed contact and the contact portion of the movable contact abut, and the contact portion is a silver member.

Through above-mentioned technical scheme, set up the contact to silver material, fixed contact and moving contact adhesion when adopting silver material can avoid the heavy current to pass through to a great extent to make follow-up temperature controller need break circuit time fixed contact and moving contact can easily separate, thereby make this temperature controller adaptable heavy current service scenario.

As a further improvement of the above technical solution, the diameters of the movable contact and the fixed contact are 5.0-7.5 mm.

Through the technical scheme, the diameters of the contacts of the temperature controllers on the market are generally about 3.0-4.0 mm, and the diameters of the movable contact and the fixed contact are set to be 5.0-7.5 mm, so that larger current can pass through between the movable contact and the fixed contact, and a large current use scene is adapted.

As a further improvement of the technical scheme, the device further comprises a manual reset button which is connected with the shell in a sliding manner, wherein the manual reset button is provided with a reset part, the manual reset button moves along the operation direction, and the reset part pushes the operation structure to move towards the liquid expansion control assembly.

Through the technical scheme, after the local temperature of the electric appliance is reduced below the disconnection temperature, if the electric appliance needs to be switched on again, if the temperature controller is not switched on automatically, an operator can push the operation structure to move towards the direction close to the liquid expansion control component through pressing the manual reset button, and then the movable contact can reset automatically under the action of self elastic force so as to switch on the circuit of the electric appliance again. By arranging the manual reset button, the condition that the elastic force of the movable contact piece is insufficient to drive the operation structure to reset can be avoided, and an operator can press the manual reset button by himself so as to enable the circuit of the electric appliance to be switched on again.

As a further improvement of the technical scheme, the device is further provided with a reset elastic piece, two ends of the reset elastic piece are respectively abutted to the shell and the manual reset button, and the elastic force of the reset elastic piece to the manual reset button deviates from the liquid expansion control assembly.

Through above-mentioned technical scheme, reset elastic component is used for making manual reset button automatic re-setting, avoids manual reset button to lead to the fact the influence to the removal of operating structure.

As a further improvement of the above technical solution, the return elastic member is provided as a spring.

As a further improvement of the technical scheme, the device also comprises a rotation limiting component; the rotary limiting assembly comprises a limiting groove and a limiting sliding block; the limit groove with limit slider set up respectively in manual reset button with the shell, manual reset button with be equipped with grafting connection structure between the operating structure, grafting connection structure includes grafting groove and grafting piece, grafting groove with the grafting piece set up respectively in manual reset button with operating structure, grafting groove with the grafting piece is pegged graft and is connected, the cross section of grafting piece is polygon or oval or irregular shape.

Through the technical scheme, the relative rotation between the operation structure and the manual reset button is limited.

As a further improvement of the above technical solution, the fixed contact and the movable contact are respectively connected with a wire connection assembly, and the wire connection assembly comprises a connection screw and a connection sleeve; the connecting sleeve is in threaded connection with the connecting screw, the connecting sleeve is provided with a wire connecting plate, and a wire clamping space is formed between the wire connecting plate and the head of the connecting screw.

Through the technical scheme, the electric wire is clamped in the electric wire clamping space by the head of the connecting screw and the electric wire connecting plate, and the connection is reliable.

As a further improvement of the technical scheme, the connecting sleeve is a copper component.

Through the technical scheme, the connecting sleeve is made of copper, so that the connecting sleeve has good conductivity.

As a further improvement of the technical scheme, the two ends of the shell are respectively provided with a fixed wing, and the fixed wings are provided with fixed holes.

Through the technical scheme, the fixing hole is used for penetrating the screw, and the temperature controller is fixedly connected with the electric appliance through the screw.

The beneficial effects of the utility model are as follows: compared with the structure of adopting the unipolar circuit to break in the prior art, the bipolar circuit is safer and more reliable to break at the same time.

The utility model is used in the technical field of temperature controllers.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the utility model, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic diagram of an exploded construction of an embodiment of the present utility model;

Fig. 2 is a schematic view of an exploded view of another angle of an embodiment of the present utility model.

100, A housing; 101. a fixed cover; 102. a first housing; 103. a second housing; 110. a fixed wing; 200. a liquid expansion control assembly; 300. an operating structure; 310. a pole control unit; 400. a pole loop; 410. a movable contact; 411. a movable contact; 420. a fixed contact; 421. a fixed contact; 500. a manual reset button; 510. a reset section; 520. a return elastic member; 600. a wire connection assembly; 610. a connecting screw; 620. connecting sleeves; 621. a wire connection board; 622. an area increasing structure; 700. a rotation limiting assembly; 710. a limit sliding block; 720. a limit groove; 810. a plug block; 820. and a plug-in groove.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Referring to fig. 1 and 2, a bipolar probe-type thermostat is provided with an operation direction.

The temperature controller comprises: the housing 100, the liquid expansion control assembly 200, the operating structure 300, the pole circuit 400, and the manual reset button 500.

The casing 100 is made of bakelite, the casing 100 comprises a fixed cover 101, a first casing 102 and a second casing 103, the first casing 102 and the second casing 103 are connected through a buckle structure in a buckle mode, and a space is arranged inside the casing 100 and used for installing the operation structure 300, the pole circuit 400 and other structures. The fixing cover 101 is fixedly connected with the first housing 102 through a corn nail, in other embodiments, the fixing cover 101 and the first housing 102 may be connected through other common fixing structures such as screws, and those skilled in the art may select the fixing structures according to actual needs.

The casing 100 is provided with two fixing wings 110, the number of the fixing wings 110 is two, the two fixing wings 110 are respectively arranged at two ends of the casing 100, and the fixing wings 110 are provided with fixing holes for screws to pass through. When the temperature controller is installed, the screw penetrates through the fixing hole and is in threaded connection with the electric appliance, and finally the head of the screw is abutted against the end face of the fixing wing 110, so that the fixing of the shell 100 and the electric appliance is realized.

The liquid expansion control assembly 200 comprises a temperature sensing cylinder, a capillary tube, a membrane box and other structures, and the temperature sensing cylinder, the capillary tube and the membrane box are connected in sequence. The bellows is fixed in the fixed cover 101, and the capillary tube passes through the fixed cover 101. When the temperature of the part to be detected by the electric appliance rises, the liquid in the capillary tube expands, so that the thickness of the bellows increases to drive other structures to move.

Also provided are wire connection assemblies 600, the number of the wire connection assemblies 600 being four, and the four wire connection assemblies 600 being respectively disposed at four corners of the housing 100.

The wire connection assembly 600 includes a connection screw 610 and a connection sleeve 620.

The connecting sleeve 620 is a copper member, and the connecting sleeve 620 is made of copper, so that the connecting sleeve 620 has better conductivity.

The connecting sleeve 620 is a tubular member, two ends of the connecting sleeve 620 are respectively provided with a wire connecting plate 621 and an area increasing structure 622, the wire connecting plate 621 is arranged on the outer side of the shell 100, the connecting screw 610 penetrates through the connecting sleeve 620 and is in threaded connection with the connecting sleeve 620, a wire clamping space is formed between the head of the connecting screw 610 and the wire connecting plate 621, after the wires and the temperature controller are connected, the wires are clamped in the wire clamping space by the head of the connecting screw 610 and the wire connecting plate 621, and the connection is reliable. The high current passing capability of the temperature controller can be improved to a certain extent by adopting the mode of connecting the screw 610 and the connecting sleeve 620.

The number of pole loops 400 is set to two, and the two pole loops 400 are arranged centrally symmetrically.

The pole loop 400 includes a movable contact 410 and a fixed contact 420, where the movable contact 410 and the fixed contact 420 are provided with a fixed end and a contact end. The fixed end of the movable contact 410 and the fixed end of the fixed contact 420 are fixedly connected with the shell 100, the contact end of the fixed contact 420 is fixedly provided with a fixed contact 421, the contact end of the movable contact 410 is fixedly provided with a movable contact 411, and the movable contact 410 and the fixed contact 420 are correspondingly arranged. In a normal state, the movable contact 411 and the fixed contact 421 of the two pole circuits 400 are both held in abutment, so that the two pole circuits 400 communicate, so that the electric appliance is kept energized and normally operates.

Specifically, the fixed contact 421 and the movable contact 411 each include a contact portion and a connection portion. The connection portion of the fixed contact 421 is fixedly connected to the contact end of the fixed contact 420, the connection portion of the movable contact 411 is fixedly connected to the contact end of the movable contact 410, and the contact portion of the movable contact 411 abuts against the contact portion of the fixed contact 421. The connection part is provided as a copper member, and the contact part is provided as a silver member.

The contact part is made of silver, and the fixed contact 421 and the movable contact 411 are prevented from being adhered when large current passes through to a great extent by adopting the silver, so that the fixed contact 421 and the movable contact 411 can be easily separated when a circuit is required to be disconnected for a subsequent temperature controller, and the temperature controller can be adapted to a large-current use scene.

Specifically, the diameters of the fixed contact 421 and the movable contact 411 are each 5.0 to 7.5 mm. In the present embodiment, the diameters of the fixed contact 421 and the movable contact 411 are 6 mm.

The contact diameter of the commercial temperature controller is generally about 3.0-4.0 mm, and the diameter of the fixed contact 421 and the movable contact 411 is set to be 6 mm in the scheme, so that larger current can pass between the fixed contact 421 and the movable contact 411, and the scheme is suitable for a large-current use scene.

Through the silver contact part and the enlarged size of the fixed contact 421 and the movable contact 411, the capacity of the temperature controller capable of bearing current is increased by a value 60A, so that the temperature controller can adapt to a large-current use scene.

The fixed ends of the fixed contacts 420 and the fixed ends of the movable contacts 410 are respectively connected with the wire connection assemblies 600, and the two movable contacts 410 and the two fixed contacts 420 are arranged in one-to-one correspondence with the four wire connection assemblies 600.

The area enlarging structure 622 of the connecting sleeve 620 of the wire connecting assembly 600 abuts against the end surface of the movable contact 410, and the area enlarging structure 622 can enlarge the contact area between the connecting sleeve 620 and the movable contact 410, so that a larger current can flow between the connecting sleeve 620 and the movable contact 411.

The liquid expansion control assembly 200 drives the operating structure 300 in the operating direction. Specifically, as the thickness of the bellows increases, the bellows pushes the operating structure 300 in a direction away from the capillary, so that the operating structure 300 can move by itself when the temperature of the portion to be detected by the user increases.

The operation structure 300 is provided with two pole control portions 310, the two pole control portions 310 are respectively disposed corresponding to the two movable contacts 410, and the pole control portion 310 is used for controlling the movable contacts 410 to control the movable contacts 411 to be far away from the fixed contacts 421.

When the operation structure 300 moves away from the liquid expansion control assembly 200, the two pole control portions 310 drive the movable contact 410 to move, so that the movable contact 411 is separated from the fixed contact 421, and the circuit is disconnected.

The bipolar circuit can be simultaneously opened by the operation structure 300, and compared with the structure adopting the unipolar circuit to be opened in the prior art, the bipolar circuit can be simultaneously opened more safely and reliably.

The manual reset button 500 is slidably connected to the housing 100, and a reset portion 510 is disposed at an end of the manual reset button 500 near the operation structure 300, and the manual reset button 500 moves in the operation direction relative to the housing 100.

The reset portion 510 is used to push the operating structure 300 so that the operating structure 300 moves toward the liquid expansion control assembly 200.

When the local temperature of the electric appliance is reduced below the off temperature and the electric appliance needs to be turned on again, if the temperature controller is not automatically turned on, an operator can push the operation structure 300 to move towards the direction close to the liquid expansion control assembly 200 by pressing the manual reset button 500, and then the movable contact 410 automatically resets under the action of the elastic force of the movable contact 410 so as to turn on the circuit of the electric appliance again. By providing the manual reset button 500, the situation that the elastic force of the movable contact 410 is insufficient to drive the operation structure 300 to reset can be avoided, and an operator can press the manual reset button 500 by himself so as to make the circuit of the electric appliance be turned on again.

A reset elastic member 520 is disposed between the manual reset button 500 and the housing 100, two ends of the reset elastic member 520 are respectively abutted against the manual reset button 500 and the housing 100, and the elastic force direction of the manual reset button 500 is deviated from the liquid expansion control assembly 200 by the reset elastic member 520.

Specifically, in the present embodiment, the reset elastic member 520 is provided as a spring, and when the reset elastic member 520 is compressed, an elastic force is generated to the manual reset button 500 away from the liquid expansion control assembly 200, so that the manual reset button 500 has a tendency to be away from the liquid expansion control assembly 200.

In other embodiments, the return elastic member 520 may be configured as a spring plate, and the like, and those skilled in the art may select the return elastic member according to actual needs.

A rotation limiting assembly 700 is provided between the manual reset button 500 and the housing 100. The rotation limit assembly 700 includes a limit slider 710 and a limit slot 720. The limit slider 710 and the limit slot 720 are respectively disposed on the housing 100 and the manual reset button 500, specifically, in this embodiment, the limit slider 710 is disposed on the manual reset button 500, the limit chute is disposed on the housing 100, in other embodiments, the limit slider 710 may be disposed on the housing 100, the limit chute is disposed on the manual reset button 500, and a person skilled in the art may select to set according to actual needs.

A plug connection structure is provided between the operation structure 300 and the manual reset button 500. The plug connection structure includes a plug block 810 and a plug slot 820. The plugging block 810 and the plugging slot 820 are respectively disposed on the operation structure 300 and the manual reset button 500, specifically, in this embodiment, the plugging block 810 is fixedly connected to the reset portion 510 of the manual reset button 500, the plugging slot 820 is opened on the operation structure 300, and the plugging block 810 and the plugging slot 820 are plug-connected. In other embodiments, the plug 810 is fixedly connected to the operation structure 300, and the plug slot 820 is formed in the reset portion 510 of the manual reset button 500, which can be selected by those skilled in the art according to actual needs.

The cross section of the insertion block 810 is polygonal or elliptical or irregularly shaped. Specifically, in the present embodiment, the cross-sectional shape of the insertion block 810 is a shape including two arc sides and two straight sides, and in other embodiments, the cross-section of the insertion block 810 may be configured to have other irregular shapes, so as to achieve limitation of the relative rotation between the operation structure 300 and the manual reset button 500.

In other embodiments, the limit slider 710 may be disposed on the housing 100, and the limit chute may be disposed on the operation structure 300, which may be selected by those skilled in the art according to actual needs.

While the preferred embodiment of the present utility model has been described in detail, the utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. Bipolar probe formula temperature controller, its characterized in that: be equipped with the direction of operation, the temperature controller includes:

A housing;

Mounted to the housing:

a liquid expansion control assembly;

2. The bipolar probe thermostat of claim 1 wherein: the fixed contact and the movable contact comprise a connecting part and a contact part, the connecting part is fixed with the fixed contact or the movable contact, the contact part of the fixed contact is abutted with the contact part of the movable contact, and the contact part is a silver member.

3. The bipolar probe thermostat of claim 1 wherein: the diameters of the movable contact and the fixed contact are 5.0-7.5 mm.

4. The bipolar probe thermostat of claim 1 wherein: the manual reset button is connected with the shell in a sliding manner, the manual reset button is provided with a reset part, the manual reset button moves along the operation direction, and the reset part pushes the operation structure to move towards the liquid expansion control assembly.

5. The bipolar probe thermostat of claim 4 wherein: the device is characterized by further comprising a reset elastic piece, wherein two ends of the reset elastic piece are respectively abutted to the shell and the manual reset button, and the elastic force of the reset elastic piece on the manual reset button is deviated from the liquid expansion control assembly.

6. The bipolar probe thermostat of claim 5 wherein: the reset elastic piece is provided with a spring.

7. The bipolar probe thermostat of claim 4 wherein: the rotary limiting assembly is also included; the rotary limiting assembly comprises a limiting groove and a limiting sliding block; the limiting groove and the limiting slide block are respectively arranged in the manual reset button and the shell, a plug connection structure is arranged between the manual reset button and the operation structure, the plug connection structure comprises a plug groove and a plug block, the plug groove and the plug block are respectively arranged in the manual reset button and the operation structure, the plug groove is in plug connection with the plug block, and the cross section of the plug block is polygonal or elliptical.

8. The bipolar probe thermostat of claim 1 wherein: the fixed contact and the movable contact are respectively connected with an electric wire connecting assembly, and the electric wire connecting assembly comprises a connecting screw and a connecting sleeve; the connecting sleeve is in threaded connection with the connecting screw, the connecting sleeve is provided with a wire connecting plate, and a wire clamping space is formed between the wire connecting plate and the head of the connecting screw.

9. The bipolar probe thermostat of claim 8 wherein: the connecting sleeve is a copper component.

10. The bipolar probe thermostat of claim 1 wherein: the two ends of the shell are respectively provided with a fixed wing, and the fixed wings are provided with fixed holes.