CN219457460U - Temperature controller capable of adjusting temperature - Google Patents

Abstract

The temperature controller with adjustable temperature has one upwards inclined tongue part, one movable board with through hole, one bent part in the through hole, one elastic part connected to the tongue part of the elastic part, one fixed terminal, one insulating middle shoulder seat, one assembly, one movable terminal, one elastic part and one insulating bottom shoulder seat, one ceramic barrel connected to the insulating long barrel shoulder seat from top to bottom, one pedestal, one movable connecting part connected to the pedestal in the upper end of the pedestal, one ceramic rod connected to the pedestal, and one pedestal upper part. The utility model can adjust the jump-off temperature and the reset temperature.

Description

Temperature controller capable of adjusting temperature

Technical Field

The utility model relates to the field of production and processing of temperature controllers, in particular to a temperature controller with adjustable temperature.

Background

The temperature control function of the traditional temperature controller is that the bimetallic strip inside the temperature controller is jumped off in a certain temperature interval along with the temperature rise, so that the circuit is cut off to stop heating; with the temperature reduction, the bimetallic strip inside the temperature controller is reset in a certain temperature interval, so that the circuit is restored to heat, and finally, the function of controlling the temperature is achieved. On the contrary, the temperature rising recovery circuit, the Y-shaped product of the temperature reducing and cutting-off circuit, the low Wen Pin and the disposable product are the same, and the jump-off temperature and the reset temperature are fixed and cannot be adjusted.

As the requirements of clients become higher, some clients need to have a non-fixed trip temperature and a non-fixed reset temperature, but can be adjusted, for example, in a specific environment, the complete machine needs to be maintained in a certain high temperature section for rapid heating, and then the client needs not to be maintained in a high temperature section, needs a general temperature section for maintenance, or needs a certain low temperature section for maintenance of heating. This requires that the trip and reset temperatures of the thermostat be adjustable. The prior temperature controller can not meet the requirement, and a temperature controller with adjustable trip temperature and reset temperature is required to be developed.

Disclosure of Invention

The utility model aims to provide a temperature controller capable of adjusting the breaking temperature and the reset temperature.

The utility model mainly comprises an elastic piece, a movable plate, a bimetal heat sensing body, a fixed terminal, a middle shoulder seat, a movable terminal, a bottom shoulder seat, a long barrel shoulder seat, a base, a connecting piece, a ceramic rod, a stopper, a fixed contact and a movable contact.

Wherein, one end of the elastic piece is a tongue-shaped part which inclines upwards. One end of the movable plate and one end of the bimetal heat sensing body are fixedly welded to form an assembly, a through hole is formed in the movable plate, a bending part is arranged at the through hole, the bending part penetrates through the through hole of the bimetal heat sensing body in a downward inclined mode, extends to the lower portion of the bimetal heat sensing body, and is clamped on the tongue-shaped portion of the elastic piece. The fixed terminal, the insulated middle shoulder seat, the assembly, the movable terminal, the elastic piece and the insulated bottom shoulder seat are sleeved on the ceramic cylinder of the insulated long cylinder shoulder seat from top to bottom, and are riveted on the base in the fixed direction after being sleeved. The lower part of the base is movably connected with a connecting piece, the upper end of the connecting piece is inserted with a ceramic rod and extends to the upper part of the base, and the upper end of the ceramic rod is contacted with a supporting spring. The stopper with the limiting legs is fixedly connected to the connecting piece. A fixed contact is provided at one end of the fixed terminal, a movable contact is provided at one end of the movable plate, and the fixed contact and the movable contact are brought into contact by pressure generated by a bent portion of the movable plate.

Preferably, a bayonet, a threaded hole and a riveting hole are formed in the base, and a baffle is arranged at the lower part of the base.

Preferably, for customer installation convenience, both left and right ends of the base are extended downward, and terminal installation holes are opened on the extended portions thereof.

Preferably, in order to protect the metal parts, a housing is movably connected to the base, and the housing is an insulating resin member having a lower opening.

Preferably, in order to enable the metal heat sensing body inside the temperature controller to timely sense the temperature of the external environment, a plurality of ventilation holes are formed in the shell. The clamping jaw is arranged at the bottom of the shell, the clamping jaw of the shell is inserted into the bayonet of the base during installation, the two sides of the clamping jaw of the shell are respectively provided with a base slot, the base is movably inserted into the base slots during installation, the two side surfaces of the other end of the shell are provided with fixing grooves, and the fixing terminals and the movable terminals are inserted into the fixing grooves to play a fixing role.

Preferably, the elastic piece is a supporting spring, has strong elastic force and has unchanged elastic force.

Preferably, the connector is an adjusting screw.

Compared with the prior art, the utility model has the following advantages: the trip temperature and the reset temperature can be adjusted.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of the housing of the present utility model;

FIG. 3 is an assembly view of the rivet, long barrel shoulder, fixed terminal, movable plate, bimetallic heat sensing body, movable terminal, support spring, ceramic rod and bottom shoulder of the present utility model;

FIG. 4 is a perspective view of a base of the present utility model;

FIG. 5 is a perspective view of the stopper of the present utility model;

FIG. 6 is a perspective view of a support spring of the present utility model;

fig. 7 is a perspective view of a movable plate of the present utility model;

FIG. 8 is a perspective view of a long barrel shoulder rest of the present utility model;

FIG. 9 is a top view of the intermediate shoulder rest of the present utility model;

FIG. 10 is a top view of the bottom shoulder rest of the present utility model;

fig. 11 is a perspective view of a fixing terminal of the present utility model;

fig. 12 is a perspective view of a movable terminal of the present utility model;

FIG. 13 is a perspective view of the rivet of the present utility model;

FIG. 14 is a perspective view of a bimetallic heat sensing body of the present utility model;

FIG. 15 is a top view of the set screw and ceramic rod of the present utility model;

in the figure, 1-housing, 101-vent, 102-base slot, 103-fixed slot, 104-jaw, 2-base, 201-baffle, 202-bayonet, 203-terminal mounting hole, 204-threaded hole, 205-rivet hole, 3-stopper, 301-limit leg, 4-fixed terminal, 401-fixed contact rivet hole, 5-movable terminal, 6-adjusting screw, 7-ceramic stem, 8-rivet, 801-rivet cap, 802-rivet portion, 803-rivet stem, 9-long cylinder shoulder, 901-ceramic cap, 902-ceramic cylinder, 903-center hole, 10-middle shoulder, 11-bottom shoulder, 12-movable plate, 121-bent portion, 122-movable contact rivet hole, 123-welded positioning hole, 13-fixed contact, 14-supporting spring, 141-tongue-like portion, 15-movable contact, 16-bimetal sense, 161-welded point, 162-bimetal heat body side through hole, 163-bump, 17-1 supporting spring through hole, 17-2 bimetal sense 17-through hole, 17-3-movable terminal through hole on 17-bimetal sense terminal.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

In the schematic diagrams of the present utility model shown in fig. 1, 2, 3, 5 and 15, a bayonet 202, a screw hole 204 and a caulking hole 205 are formed in a base 2, and a baffle 201 is provided in a lower portion of the base. For customer installation convenience, the left and right ends of the base are extended downward, and terminal installation holes 203 are opened in the extended portions thereof. To protect the metal parts, a housing 1 is movably connected to the base, and the housing is an insulating resin member having a lower opening. In order to enable the metal heat sensing body inside the temperature controller to timely sense the temperature of the external environment, a plurality of ventilation holes 101 are formed in the shell. The clamping jaw 104 is arranged at the bottom of the shell, the clamping jaw 104 of the shell is inserted into the bayonet 202 of the base during installation, the two sides of the clamping jaw 104 of the shell are respectively provided with the base slot 102, the base is movably inserted into the base slot 102 during installation, the two side surfaces of the other end of the shell are provided with the fixing grooves 103, and the fixing terminals and the movable terminals are inserted into the fixing grooves 103 to play a fixing role.

The adjusting screw 6 is rotated on the base through the threaded hole 204 of the base 2, the upper end of the adjusting screw is inserted into the ceramic rod 7 and extends to the upper part of the base, and the upper end of the ceramic rod is contacted with the bottom of the supporting spring. The stopper 3 with the stopper leg 301 is fixedly attached to the adjusting screw.

In the schematic diagrams of the present utility model shown in fig. 6, 7 and 14, one end of the supporting spring 14 is provided with a tongue 141 inclined upward, and the supporting spring is provided with a through hole 17-1. One side of the movable plate 12 is provided with a welding positioning hole 123, and the other side is provided with a movable contact riveting hole 122, and the movable contact 15 is riveted in the movable contact riveting hole. The movable plate is provided with a through hole, a downward-inclined bending part 121 is arranged at the through hole, the arc radius of the bending part and the downward-inclined angle are determined according to the difference value between the jump-off temperature and the reset temperature, the larger the difference value is, the smaller the arc radius is, the larger the inclined angle is, the larger the generated elastic force is, the smaller the difference value is, the larger the arc radius is, the smaller the inclined angle is, and the generated elastic force is smaller. Two welding points 161 are arranged on one side of the bimetal heat-sensitive body 16, protruding points 163 are arranged in the middle of the two welding points, the protruding points are inserted into welding positioning holes on one side of the movable plate, and one end of the movable plate and one end of the bimetal heat-sensitive body are welded through the welding positioning holes 123 and the welding points 161 to form an assembly. One side of the bimetal heat sensing body is provided with a through hole 162, the other side is provided with a through hole 17-2, and the bending part of the movable plate downwards inclines to pass through the through hole 162 of the bimetal heat sensing body, extends to the lower part of the bimetal heat sensing body and is clamped on the tongue-shaped part 141 of the supporting spring. The length of the bimetal heat sensing body is longer than that of the movable plate.

In the schematic diagrams of the present utility model shown in fig. 8, 9 and 10, the long cylindrical shoulder seat 9, the annular middle shoulder seat 10 and the annular bottom shoulder seat 11 are all made of insulating nine-five ceramics, and the long cylindrical shoulder seat is composed of a ceramic cover 901 and a ceramic cylinder 902, and the ceramic cover 901 and the ceramic cylinder 902 are integrally constructed and are penetrated by a central hole 903. The outer diameter of the ceramic cylinder is the same as the inner diameter of the middle shoulder seat and the inner diameter of the bottom shoulder seat.

In the schematic diagrams of the present utility model shown in fig. 3, 11, 12 and 13, a fixed contact caulking hole 401 is formed on one side of the fixed terminal 4 for caulking the fixed contact 13, and a through hole 17-3 is formed in the fixed terminal. The movable terminal 5 is provided with a through hole 17-4. The fixed terminal is respectively sleeved on the ceramic cylinder of the long cylinder shoulder seat from top to bottom through the through hole 17-3 on the fixed terminal, the middle shoulder seat, the assembly through the through hole 17-2 on the bimetal heat sensing body, the movable terminal through the through hole 17-4 on the movable terminal, the supporting spring through the through hole 17-1 on the supporting spring and the bottom shoulder seat, the rivet rod 803 of the rivet 8 penetrates through the central hole 903 of the long cylinder shoulder seat, the rivet cap 801 of the rivet 8 presses the ceramic cover 901 of the long cylinder shoulder seat, and the riveting part 802 of the rivet 8 penetrates through the riveting hole of the base 2 and is riveted on the base. The fixed terminal side and the movable terminal side are insulated by the ceramic long barrel shoulder seat, the ceramic middle shoulder seat and the ceramic bottom shoulder seat, and only the fixed contact and the movable contact are contacted by the bending part of the movable plate to generate pressure.

When the utility model is used, the reset temperature of the temperature controller is not directly indicated and is obtained by subtracting a certain value from the jump-off temperature, for example, the jump-off temperature is 100 ℃, and when the reset temperature is 80 ℃, the reset temperature of the temperature controller is expressed as 100-20 ℃, which means that the jump-off temperature is 100 ℃, the reset is carried out after the jump-off is reduced by 20 ℃, namely, the difference value between the jump-off temperature and the reset temperature is 20 ℃. This difference is determined by the radius of the arc and the inclination angle of the curved portion 121 of the movable plate 12, and the larger this difference, the smaller the radius of the arc is required, the larger the inclination angle is, because the larger the elastic force is generated at this time; conversely, the smaller the difference, the larger the radius of the arc is required, and the smaller the inclination angle is, because the smaller the elastic force generated at this time is.

When a customer needs temperature control of a high temperature section, the retainer 3 is adjusted, the ceramic rod moves downwards, the tongue-shaped part 141 of the supporting spring 14 also moves downwards under the action of strong elastic force of the retainer, the tongue-shaped part 141 pulls the bending part 121 of the movable plate 12 to move downwards, the end of the movable contact 15 on the right side of the movable plate 12 is forced to lift upwards, so that the pressure between the movable contact 15 and the fixed contact 13 is increased, at the moment, the bimetal heat-sensitive body 16 needs higher temperature to generate larger deformation, larger force is generated to overcome the pressure between the movable contact 15 and the fixed contact 13, when the force is overcome, the movable contact 15 of the movable plate 12 is instantly jumped off under the action of the bending part 121, the movable contact 15 can be jumped off when the temperature is high, the bimetal heat-sensitive body 16 deforms in the opposite direction along with the reduction of the temperature, and the movable contact 15 is instantly restored after the movable plate 12 overcomes the elastic force generated by the bending part 121, so that the temperature control at the high temperature section is completed;

when the customer needs the temperature control of the low temperature section, the stopper 3 is adjusted to move the ceramic rod upward, and the tongue 141 of the support spring 14 is also moved upward by the upward ceramic rod 7, so that the tongue 141 pulls the bent portion 121 of the movable plate 12 upward, forcing the end of the right movable contact 15 of the movable plate 12 to move downward, so that the pressure between the movable contact 15 and the fixed contact 13 is reduced, but not separated. When the temperature is raised, the bimetal thermal body 16 can deform without raising the temperature too high, small force is generated, the pressure between the movable contact 15 and the fixed contact 13 can be overcome, when the force is overcome, the movable contact 15 of the movable plate 12 is instantly broken under the action of the bending part 121, the phenomenon that the temperature is raised is not very high, the breakage can be reflected, when the temperature begins to be lowered, the bimetal thermal body 16 deforms in the opposite direction, and after the movable plate 12 overcomes the elasticity generated by the bending part 121, the movable contact 15 is instantly reset, so that the temperature control in the low temperature section is completed.

Although the temperature controller is a temperature controller with adjustable temperature section, the temperature controller can not be infinitely adjusted to high temperature or infinitely adjusted to low temperature, if the temperature controller is infinitely adjusted to high temperature, the supporting spring 14 can move downwards infinitely, is too close to the metal base 2 and even contacts with the metal base, so that a life-threatening safety accident of poor insulation voltage resistance or short circuit of the product with electricity outside is caused, the temperature controller is infinitely adjusted to low temperature, the tongue-shaped part 141 of the supporting spring 14 is always lifted, the movable contact 15 on the right side of the movable plate 12 is forced to continuously descend, the pressure between the movable contact and the fixed contact is less than the lower limit value of 50g, even the pressure is separated, and the problem of fire striking safety accident or non-conduction of the product occurs. Therefore, the baffle 201 is arranged below the base 2 and is matched with the limit leg 301 of the stopper 3, so that the stopper 3 can be rotationally adjusted within a range smaller than one circumference, and the temperature control adjusting range meets the requirements of customers and is absolutely safe. If it is desired to expand or contract the adjustment temperature control range within the safety range, it is possible to perform this by adjusting the width and shape of the barrier 201 or to install a larger member of the width on the barrier 201.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (7)

1. The temperature controller capable of adjusting temperature mainly comprises an elastic piece, a movable plate, a bimetal heat sensing body, a fixed terminal, a middle shoulder seat, a movable terminal, a bottom shoulder seat, a long barrel shoulder seat, a base, a connecting piece, a ceramic rod, a stopper, a fixed contact and a movable contact, and is characterized in that: the movable plate is provided with a through hole, a bending part is arranged at the through hole, the bending part downwards inclines to pass through the through hole of the bimetal heat sensing body and extend to the lower part of the bimetal heat sensing body, the fixed terminal, the insulated middle shoulder seat, the assembly, the movable terminal, the elastic part and the insulated bottom shoulder seat are sleeved on the ceramic cylinder of the insulated long cylinder shoulder seat from top to bottom, the sleeved ceramic cylinder is riveted on the base in the fixing direction, the lower part of the base is movably connected with the connecting part, the upper end of the connecting part is inserted with a ceramic rod and extends to the upper part of the base, the upper end of the ceramic rod is contacted with the elastic part, the stopper with a limiting leg is fixedly connected on the connecting part, one end of the fixed terminal is provided with a movable contact, and the fixed contact and the movable contact are contacted by pressure through the bending part of the movable plate.

2. The temperature-adjustable temperature controller of claim 1, wherein: the base is provided with a bayonet, a threaded hole and a riveting hole, and the lower part of the base is provided with a baffle plate.

3. The temperature-adjustable temperature controller of claim 1, wherein: the left and right ends of the base extend downward, and terminal mounting holes are formed in the extending portions of the base.

4. The temperature-adjustable temperature controller of claim 1, wherein: the base is movably connected with the shell, and the shell is an insulating resin piece with a lower opening.

5. The temperature-adjustable temperature controller of claim 4, wherein: the shell is provided with a plurality of ventilation holes, the bottom of the shell is provided with a claw, the claw of the shell is inserted in the bayonet of the base during installation, the two sides of the claw of the shell are respectively provided with a base slot, the base slot is movably inserted during installation, the two sides of the other end of the shell are provided with fixing grooves, and the fixing terminal and the movable terminal are inserted in the fixing grooves.

6. The temperature-adjustable temperature controller of claim 1, wherein: the elastic piece is a supporting spring, has strong elasticity and has unchanged elasticity.

7. The temperature-adjustable temperature controller of claim 1, wherein: the connecting piece is an adjusting screw.