CN113113264B - Small reset temperature controller - Google Patents
Small reset temperature controller Download PDFInfo
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- CN113113264B CN113113264B CN202110316113.2A CN202110316113A CN113113264B CN 113113264 B CN113113264 B CN 113113264B CN 202110316113 A CN202110316113 A CN 202110316113A CN 113113264 B CN113113264 B CN 113113264B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
- H01H37/70—Resetting means
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- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The utility model relates to a small-size reset temperature controller, which comprises a housin, the leading truck of setting in the casing, and slidable mounting the push rod on the leading truck, the leading truck divides movable chamber and installation cavity into with the casing, be provided with the temperature sensing video disc with push rod one end contact in the activity chamber, be provided with the flexure strip that is used for supplying the push rod other end butt in the installation cavity, be provided with the moving contact on the flexure strip, be provided with the static contact that is used for with the moving contact on the leading truck, the casing is provided with the fixed component that has the holding moving contact and static contact off-state in the installation cavity, still be provided with the locking component that is used for locking fixed component fixed state on the casing. This application is through the cooperation that sets up fixed component and locking component for the temperature controller is normally disconnected, and until electrical equipment troubleshooting back, the locking component just removes the locking to fixed component, so that fixed component removes the fixed to the temperature controller, makes the temperature controller switch on, thereby has the advantage of being convenient for reduce the potential safety hazard in temperature controller use.
Description
Technical Field
The application relates to the technical field of temperature controllers, in particular to a small reset temperature controller.
Background
The current temperature controller is a series of automatic control elements which are physically deformed in a switch according to the temperature change of a working environment, thereby generating certain special effects and generating on or off actions. .
Related art is like the automatic re-setting kick type temperature controller that publication number is CN110767500A discloses a take supplementary resilience mechanism, including the main casing body, butterfly bimetallic strip is installed at main internal top, the vertical tow bar that is fixed at the crooked kick central point of butterfly bimetallic strip, the bottom of tow bar meets with the top surface center of movable contact spring, the tow bar rotates through connecting the revolving rack and fixes the top surface central point at the movable contact spring and puts, the bottom surface of movable contact spring is fixed with the ascending resilience spring of a plurality of elasticity, the vertical feeler lever that is fixed at the moving contact bottom, the moving contact wears to establish through the feeler lever and fixes in panel one side of movable contact spring, the feeler lever bottom is equipped with the buckle mechanism who keeps the position with the draw-in groove seat, the draw-in groove seat is fixed at main internal bottom of casing.
In the above-described related art, the inventors consider that: the power off when the temperature controller is heated to reach the predetermined value, the temperature controller switches on after the temperature reduces to the predetermined value, when electrical equipment breaks down abnormally to heat up, after the power off of the temperature controller, after the temperature of the electrical equipment reduces, the temperature controller automatically resets once more and switches on the power supply of the electrical equipment, so that the electrical equipment which breaks down abnormally to heat up heats up repeatedly, and potential safety hazards exist in the use of the temperature controller.
Disclosure of Invention
In order to reduce the potential safety hazard that the temperature controller used, the purpose of this application is to provide a small-size temperature controller that resets.
The application provides a small-size reset temperature controller adopts following technical scheme:
a small reset temperature controller comprises a shell, a guide frame arranged in the shell and a push rod slidably mounted on the guide frame, wherein the guide frame divides the shell into a movable cavity and an installation cavity, a temperature sensing disc contacted with one end of the push rod is arranged in the movable cavity, an elastic sheet used for abutting against the other end of the push rod is arranged in the installation cavity, a moving contact is arranged on the elastic sheet, a static contact used for being contacted with the moving contact is arranged on the guide frame, the small reset temperature controller is characterized in that a fixing component used for keeping the moving contact and the static contact in a separation state is arranged in the installation cavity of the shell, and a locking component used for locking the fixing state of the fixing component is further arranged on the shell.
By adopting the technical scheme, when the fault temperature of the electrical equipment rises, the temperature sensing disc is heated and then bends towards the shell in the movable cavity, so that the push rod is abutted by the temperature sensing disc and then bends the elastic sheet towards the direction far away from the temperature sensing disc to drive the moving contact to be separated from the static contact, the moving contact separated from the static contact is fixed through the fixing mechanism, and then the fixing state of the fixing member is locked by the locking member to disconnect the power supply of the electrical equipment and stop heating. And after the electrical equipment is cleared, the electrical equipment recovers to normal temperature, the fixing of the locking member on the fixing member is released, so that the fixing of the fixed member on the moving contact is released, and the elastic sheet drives the moving contact to be abutted against the static contact again to connect the power supply of the electrical equipment. Therefore, through the cooperation of the fixing component and the locking component, the state that the temperature controller is disconnected is fixed by the fixing component, and the state that the fixing component is fixed is locked by the locking component, so that the temperature controller is normally disconnected, and the locking component is used for unlocking the fixing component until the fault of the electrical equipment is eliminated, so that the fixing component is used for unlocking the temperature controller, the temperature controller is conducted, and the potential safety hazard of the temperature controller is reduced.
Optionally, the fixing member includes a hinge column hinged to the inner wall of the housing, a first plate fixedly connected to a circumferential side wall of the hinge column, and a second plate, the first plate is used for abutting against an upper surface of the elastic sheet and limiting the moving contact to abut against the fixed contact, the second plate is used for abutting against a lower surface of the elastic sheet, and the elastic sheet abuts against the second plate and is used for starting the locking member to fix the state that the first plate limits the elastic sheet to reset.
By adopting the technical scheme, when the electrical equipment is abnormally heated, the temperature sensing disc is heated and bends towards the inside of the shell, the push rod is abutted by the temperature sensing disc and then abuts the elastic sheet towards the direction far away from the guide frame, so that the elastic sheet drives the moving contact to be separated from the static contact after bending. Meanwhile, the elastic sheet is abutted against the second plate while bending towards the direction away from the temperature sensing disc, so that the second plate drives the hinge column to rotate anticlockwise, and further drives the first plate to rotate anticlockwise to the upper side of the elastic sheet. So that the elastic sheet is abutted to the bottom wall of the first plate in the process of restoring deformation to limit the moving contact to be abutted to the static contact, and the first plate abutted to the elastic sheet is locked through the locking component, so that the temperature controller can normally cut off the power supply of the electrical equipment. Therefore, through the cooperation that sets up first board and second board, utilize the rotation of articulated post for the butt second board drives the first board and rotates when the flexure strip is crooked, so that the first board rotates to the restoration route of flexure strip on, and then restricts the moving contact butt in the static contact, thereby the temperature controller of being convenient for cuts off the power supply when electrical equipment heats up unusually.
Optionally, a return spring is fixedly connected to the inner wall of the housing, and one end of the return spring, which is far away from the inner wall of the housing, is fixedly connected to the bottom wall of the second plate.
By adopting the technical scheme, when the locking member unlocks the first plate, the elastic sheet is bent towards the temperature sensing disc to recover the deformation, and the restoring force of the restoring spring acts on the second plate, so that the second plate drives the hinge column to rotate, and then drives the first plate to be separated from the elastic sheet and attached to the inner wall of the shell, and the first plate and the second plate can be automatically restored on the inner wall of the shell conveniently.
Optionally, the locking member includes a locking block sliding on the side wall of the housing, and a locking spring disposed on the side wall of the housing, and the locking spring is configured to urge the locking block to abut against the upper surface of the first plate, and limit the first plate to return.
By adopting the technical scheme, when the locking member locks the state that the first plate is abutted to the upper surface of the elastic sheet, the elastic sheet bends away from the temperature sensing disc and abuts against the second plate to rotate anticlockwise, and the first plate rotates towards the direction away from the shell to separate the top wall of the first plate from the bottom wall of the locking block and then rotates to the upper part of the elastic sheet. The restoring force of the locking spring acts on the locking block, so that the locking block slides towards the direction far away from the temperature sensing disc, the locking block is abutted against the side wall of the hinge column and the side wall of the first plate towards the shell, the elastic sheet is limited to restore and deform towards the direction of the temperature sensing disc, the moving contact and the static contact are limited to be abutted against each other, the state that the deformation of the elastic sheet is limited to restore by the first plate is locked, the power supply of the electrical equipment is disconnected and is not communicated when the temperature of the electrical equipment is too high, and the effect of protecting the electrical equipment is achieved.
Optionally, a reset block is fixedly connected to the locking block, a sliding groove for sliding the reset block is formed in the side wall of the shell, one end of the locking spring is fixedly connected to the side wall of the reset block, and the other end of the locking spring is fixedly connected to the sliding groove close to the groove wall of the guide frame.
By adopting the technical scheme, after the fault of the electrical equipment is eliminated, the reset block slides in the sliding groove towards the direction of the temperature sensing disc, so that the locking spring is compressed. Until the reset block drives the locking piece and slides to first board top, reset spring acts on the second board to drive first board and rotate towards shells inner wall, and when making the first board closely paste shells inner wall, the roof butt of first board is in the diapire of locking piece, fixes in order to remove the reset block to the first board restriction, makes the flexure strip resume deformation with moving contact butt static contact, thereby the temperature controller of being convenient for manual resets.
Optionally, the locking member includes a locking block sliding on the inner wall of the housing, a locking spring fixedly connected to the reset block, and an adjusting portion disposed inside the locking block and the reset block, and the adjusting portion is configured to fix the first plate in a state of being located on one side of the elastic piece.
Through adopting above-mentioned technical scheme, when electrical equipment needs temperature controller automatic re-setting, the flexure strip butt moves the hinge post in the second plate and rotates, the first board rotates towards the direction of keeping away from the casing, make the roof of first board break away from the butt of locking block diapire, make the locking block receive behind locking spring's elasticity gliding, the first board rotates towards the direction of keeping away from shells inner wall, when rotating to the one side that is located the flexure strip until the first board, it fixes the state that the first board is located flexure strip one side through the regulating part, make the flexure strip receive the normal deformation of supporting of push rod and reset, with the restriction first board, the butt of second board and flexure strip, make the temperature controller realize automatic re-setting, thereby be convenient for adjust the temperature controller into the automatic re-setting mode.
Optionally, the adjusting part includes that the regulation pole that runs through reset block and locking piece, set up in adjust a plurality of screw threads on the pole circumference lateral wall, adjust pole threaded connection in reset block and locking piece, and the both ends of adjusting the pole extend reset block and locking piece, the top card of first board is gone into adjust the pole and is worn out two adjacent of locking piece one end in the screw thread, it will to adjust the pole first board and second board locking to make the flexure strip normally bounce and drive moving contact and static contact butt or separation.
Through adopting above-mentioned technical scheme, when using the temperature controller on the electrical equipment that needs interrupted the heating, rotate the regulation pole for the locking piece is worn out to the one end of adjusting the pole. The temperature sensing disc bends towards the inside of the shell after the heated temperature rises to a preset value, so that the push rod pushes the elastic sheet to separate the moving contact from the fixed contact. Make the tip of flexure strip to support the second board simultaneously for articulated post anticlockwise rotation drives first board and rotates towards the direction of keeping away from the casing inner wall, blocks in two adjacent screw threads of adjusting the pole after the first board rotates from the locking piece. The first plate is located on one side of the elastic sheet, so that the elastic sheet is pushed by the push rod to drive the moving contact to be separated from the static contact, and when the temperature sensing disc is heated, the temperature is reduced and the deformation is recovered, the elastic sheet recovers the deformation to drive the moving contact to be abutted against the static contact, and the automatic resetting of the temperature controller after the disconnection is realized, so that the temperature controller can be used on electrical equipment needing to be heated discontinuously.
When the temperature controller is used on electrical equipment needing overheat protection, the adjusting rod is screwed, so that the thread is abutted to the top wall of the first plate to rotate until one end of the adjusting rod, which extends out of the locking block, is rotated into the locking block, and the limitation on the rotation of the first plate is removed. Then drive the locking piece with the reset block and slide towards the direction of temperature sensing video disc to reset spring supports and moves the second board and drives the first board and rotate towards the casing inner wall, and the roof butt in the diapire of locking piece of first board makes locking spring act on the reset block and supports the first board tightly in the diapire of locking piece. So that the temperature sensing disc drives the push rod after being heated and bent and supports the elastic sheet, make the moving contact break away from the static contact, and the butt second board drives the first board and changes from the locking block, make the locking block butt in articulated post and first board upper surface, and the temperature sensing disc resumes after deformation, the elastic sheet resumes deformation butt in the lower surface of first board, in order to restrict the moving contact butt in the static contact, with electrical equipment power disconnection, the realization is carried out overheat protection to electrical equipment.
When the power supply needs to be connected, the reset block drives the locking block to slide towards the direction of the temperature sensing disc, so that the locking block is separated from the first plate, and the reset spring acts on the second plate to drive the first plate to rotate towards the direction far away from the elastic sheet until the top wall of the first plate abuts against the bottom wall of the locking block, so that the limitation of the elastic sheet is removed, the elastic sheet recovers to deform to abut the moving contact against the static contact, and the power supply of the electrical equipment is connected. Therefore, by arranging the adjusting rod, the rotation of the first plate is limited by the threads, the first plate is fixed on one side of the elastic sheet, and the interference of the first plate and the second plate on the elastic sheet for driving the moving contact and the static contact to be abutted is removed, so that the elastic sheet can drive the moving contact and the static contact to be automatically separated and abutted; the adjusting rod can be retracted at the same time, the elastic sheet is controlled by the first plate and the second plate, so that the temperature controller needs to be manually reset when being communicated, and the temperature controller is convenient to switch between two states of automatic reset and manual reset.
Optionally, one end of the reset block, which is far away from the locking block, extends out of the housing.
Through adopting above-mentioned technical scheme, when the locking piece removed the locking to the first board, stir the reset block that exposes outside the casing and can drive the locking piece and slide from the first board to relieve the locking of first board, so that the temperature controller resets, thereby be convenient for stir the reset block and drive the locking piece and slide.
Optionally, a through hole for the end of the push rod to pass through is formed in the elastic sheet, and a butting ring which is butted against the upper surface of the elastic sheet is fixedly connected to the circumferential side wall of the push rod.
Through adopting above-mentioned technical scheme, when the temperature sensing disc is towards the inside crooked of casing, the temperature sensing disc butt slides towards the casing inside in the push rod for in the push rod bottom inserts the through-hole, until butt ring butt in the upper surface of flexure strip, in order to peg graft the push rod on the flexure strip, reduce the slip of push rod tip in the flexure strip surface, thereby improve the accurate nature of push rod butt flexure strip deformation.
In summary, the present application includes at least one of the following beneficial technical effects:
the fixing member is matched with the locking member, the disconnected state of the temperature controller is fixed by the fixing member, and the fixed state of the fixing member is locked by the locking member, so that the temperature controller is normally disconnected, and the locking member is not used for unlocking the fixing member until the fault of the electrical equipment is eliminated, so that the fixing member is used for unlocking the fixing of the temperature controller, the temperature controller is conducted, and the potential safety hazard of the use of the temperature controller is reduced;
through the matching of the first plate and the second plate and the rotation of the hinge column, the elastic sheet is abutted against the second plate to drive the first plate to rotate when being bent, so that the first plate rotates to a recovery path of the elastic sheet, and the moving contact is further limited to be abutted against the static contact, so that the temperature controller is convenient to disconnect a power supply when the electrical equipment is abnormally heated;
through the matching of the locking block and the locking spring, the locking block is used for limiting the elastic sheet to recover and deform towards the direction of the temperature sensing disc so as to limit the abutting of the moving contact and the static contact, so that the state of the first plate for limiting the elastic sheet to recover and deform is locked, the power supply of the electric equipment is disconnected and is not communicated when the temperature of the electric equipment is too high, and the effect of protecting the electric equipment is achieved;
through the cooperation that sets up reset block and reset spring, utilize the reset block to drive the locking piece and slide towards the temperature sensing video disc for when the reset block slided from first board, reset spring restores force and acts on the second board and makes the articulated column drive first board and rotate, so that first board changes from the flexure strip, thereby the flexure strip of being convenient for resets and moves the contact butt in the static contact.
The adjusting rod is arranged, the rotation of the first plate is limited by the threads, and the blocking of the first plate and the second plate to the elastic sheet due to bouncing is limited, so that the temperature controller can be automatically reset conveniently; meanwhile, the adjusting rod is accommodated in the locking block, and the elastic sheet is controlled by the first plate and the second plate, so that the temperature controller needs to be manually reset when being communicated, and the temperature controller is convenient to switch between an automatic reset state and a manual reset state.
Drawings
Fig. 1 is a schematic diagram of an explosive structure of embodiment 1 of the present application.
Fig. 2 is a schematic cross-sectional view illustrating a thermostat conducting structure according to embodiment 1 of the present application.
Fig. 3 is a schematic cross-sectional view for showing the temperature controller being turned off in embodiment 1 of the present application.
Fig. 4 is a schematic cross-sectional view illustrating a manual reset of a thermostat according to embodiment 2 of the present application.
Fig. 5 is a schematic cross-sectional view illustrating an automatic reset of a thermostat according to embodiment 2 of the present application.
Description of reference numerals: 1. a housing; 11. a cover body; 12. a wiring terminal; 13. a chute; 2. a guide frame; 21. a movable cavity; 22. a temperature sensing disc; 23. a push rod; 231. a butting ring; 24. a mounting cavity; 3. a connecting plate; 31. static contact; 32. riveting; 4. an elastic sheet; 41. a moving contact; 42. a through hole; 5. a fixing member; 51. a hinged column; 52. a first plate; 53. a second plate; 54. a return spring; 6. a locking member; 61. a locking block; 62. a locking spring; 63. a reset block; 7. an adjustment section; 71. adjusting a rod; 72. a thread; 73. and adjusting the cap.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses small-size temperature controller that resets.
Example 1:
referring to fig. 1, a small reset thermostat includes a housing 1 having an opening, and a cover 11 fastened to the housing 1 to close the opening of the housing 1. Two binding post 12 of lower extreme fixedly connected with of casing 1, two binding post 12 are located the axis direction bilateral symmetry setting of casing 1 respectively.
Referring to fig. 1, a guide frame 2 is fixedly connected to an inner wall of a housing 1 close to a cover 11, the guide frame 2 divides the interior of the housing 1 into a movable cavity 21 and an installation cavity 24, the movable cavity 21 is located in the housing 1 close to the cover 11, and a temperature sensing disc 22 is placed in the movable cavity 21. The temperature sensing disc 22 is made of two metals with different expansion coefficients, the temperature sensing disc 22 is bent toward the inside of the casing 1 to form a bowl shape when receiving high temperature, and the temperature sensing disc 22 is bent toward the cover 11 to form an arch shape when receiving low temperature.
Referring to fig. 1, a push rod 23 penetrates through the guide frame 2 in the vertical direction, the push rod 23 is located right below the center of the circle of the temperature sensing disc 22, and the push rod 23 slides in the guide frame 2 and abuts against the bottom wall of the temperature sensing disc 22.
Referring to fig. 1, a connecting plate 3 located in the mounting cavity 24 is fixedly connected to the bottom wall of the guide frame 2, the connecting plate 3 is located at an edge position of the guide frame 2 close to the temperature sensing disc 22, and a fixed contact 31 is fixedly connected to a side of the connecting plate 3 opposite to the support plate. The bottom wall of the mounting cavity 24 is fixedly connected with an elastic sheet 4, the elastic sheet 4 is bent into an upper end and a lower end, the lower end of the elastic sheet 4 is fixedly connected with the bottom wall inside the shell 1, the upper end of the elastic sheet is fixedly connected with a moving contact 41 which is abutted against a static contact 31, and rivets 32 penetrate through the elastic sheet 4 and the connecting plate 3 and are respectively connected with the two wiring terminals 12.
Referring to fig. 2, a through hole 42 for inserting the bottom end of the push rod 23 is formed in the upper surface of the elastic sheet 4 below the push rod 23, and a contact ring 231 contacting with the upper surface of the elastic sheet 4 is fixedly connected to the circumferential sidewall of the bottom of the push rod 23, the aperture of the through hole 42 is larger than the diameter of the push rod 23, so that the push rod 23 is pushed by the temperature sensing disc 22 bending towards the inside of the housing 1, the push rod 23 is inserted into the through hole 42 to make the contact ring 231 contact with the elastic sheet 4, and the elastic sheet 4 bends towards the lower side to separate the movable contact 41 from the stationary contact 31.
Referring to fig. 2 and 3, the housing 1 is provided with a fixing member 5 for maintaining a state in which the movable contact 41 is separated from the stationary contact 31 in the mounting cavity 24, and the housing 1 is further provided with a locking member 6 for locking the fixing state of the fixing member 5, so that the movable contact 41 of the thermostat is separated from the stationary contact 31 when the temperature of the electrical equipment rises, and the fixing member 5 and the locking member 6 fix the state in which the movable contact 41 is separated from the stationary contact 31, so as to disconnect the power supply of the electrical equipment, until the fixing member 5 and the locking member 6 are released after the fault of the electrical equipment is removed.
Referring to fig. 2 and 3, the fixing member 5 includes a hinge post 51 hinged to the inner wall of the housing 1, a first plate 52 fixedly connected to a circumferential side wall of the hinge post 51, and a second plate 53, wherein the first plate 52 is located above the second plate 53, the first plate 52 is closely attached to the inner wall of the housing 1, and the second plate 53 is located below the elastic sheet 4. The first plate 52 is adapted to abut against an upper surface of the elastic piece 4 near one end of the movable contact 41, and the second plate 53 is adapted to abut against a lower surface of the elastic piece 4 near one end of the movable contact 41. When the elastic piece 4 abuts against the second plate 53, the second plate 53 drives the first plate 52 to rotate through the hinge column 51, and the locking member 6 is started to fix the state that the first plate 52 abuts against the upper surface of the elastic piece 4, so as to fix the movable contact 41 in the state of being separated from the fixed contact 31.
Referring to fig. 2, a return spring 54 is fixedly connected to the inner wall of the bottom of the housing 1 near the second plate 53, and one end of the return spring 54 far from the inner wall of the housing 1 is fixedly connected to the bottom wall of the first plate 52. When the locking member 6 is unlocked from locking the first plate 52, the restoring force of the restoring spring 54 acts on the second plate 53 to drive the hinge post 51 to rotate, so that the first plate 52 rotates to be attached to the inner side wall of the housing 1, and the first plate 52 and the second plate 53 automatically return to the inner wall of the housing 1, so that the elastic sheet 4 is restored to deform to abut the movable contact 41 against the fixed contact 31.
Referring to fig. 2, the locking member 6 includes a locking block 61 sliding on the side wall of the housing 1, and a locking spring 62 mounted on the side wall of the housing 1, wherein a reset block 63 is fixedly connected to one side of the locking block 61 facing the inner wall of the housing 1, and the reset block 63 extends out of the housing 1 along a direction perpendicular to the length direction of the housing 1. The side wall of the shell 1 is provided with a sliding groove 13 for the reset block 63 to drive the locking block 61 to slide along the length direction of the shell 1. One end of the locking spring 62 is fixedly connected to the side wall of the reset block 63 facing the cover 11, and the other end is fixedly connected to the side wall of the sliding chute 13 close to the cover 11.
Referring to fig. 2 and 3, the lock spring 62 acts on the reset block 63 such that the lock block 61 slides in the direction of the second plate 53, and the bottom wall of the lock block 61 slides against the top wall of the first plate 52. When the second plate 53 drives the first plate 52 to rotate through the hinge column 51, the top wall of the first plate 52 slides away from the bottom wall of the locking block 61, so that the locking spring 62 acts on the reset block 63 to drive the locking block 61 to slide towards the second plate 53 until the first plate 52 rotates to the reset path of the elastic sheet 4 to limit the elastic sheet 4 to reset. At this time, the locking block 61 abuts against the side wall of the hinge column 51 and the side wall of the first plate 52 facing the housing 1, the elastic force of the locking spring 62 abutting against the reset block 63 is greater than the reset elastic force of the elastic sheet 4 to lock the reset of the first plate 52, so that after the elastic sheet 4 is reset and abutted against the lower surface of the first plate 52, the first plate 52 is acted by the locking block 61 and the locking spring 62 to fix the state of the first plate 52 for limiting the reset of the elastic sheet 4, so as to limit the movable contact 41 abutting against the fixed contact 31, and thus, the electrical equipment with abnormal temperature rise is in a normally-off state.
The implementation principle of the embodiment 1 of the application is as follows: when the electrical equipment is abnormally heated, the temperature sensing disc 22 is heated and bends toward the inside of the housing 1, so that the push rod 23 slides down to abut against the elastic sheet 4 and bends downward, so as to separate the movable contact 41 from the stationary contact 31. So that the elastic piece 4 pushes the second plate 53 to rotate towards the bottom of the housing 1. The reset spring 54 is compressed and drives the first plate 52 to rotate towards the direction far away from the inner wall of the housing 1, so that the first plate 52 rotates to the upper side of the elastic sheet 4, meanwhile, the locking spring 62 acts on the reset block 63, so that the reset block 63 drives the locking block 61 to slide downwards and abut against the side wall of the first plate 52 towards the inner wall of the housing 1, so that the first plate 52 is limited to rotate towards the direction of the inner wall of the housing 1, the first plate 52 abuts against the upper surface of the elastic sheet 4 and limits the moving contact 41 to abut against the static contact 31, and the power supply of the electrical equipment is disconnected.
After the electrical equipment is discharged due to a fault, the electrical equipment returns to normal temperature, and the reset block 63 slides in the sliding slot 13 toward the temperature sensing disc 22, so that the locking spring 62 is compressed to drive the locking block 61 to slide in a direction away from the first plate 52. Until the locking block 61 slides to the upper side of the first plate 52, the restoring force of the restoring spring 54 acts on the second plate 53, so that the second plate 53 drives the hinge column 51 to rotate, the hinge column 51 drives the first plate 52 to rotate towards the inner wall of the housing 1, and the top wall of the first plate 52 abuts against the bottom wall of the locking block 61, so that the movable contact 41 abuts against the fixed contact 31 after the elastic sheet 4 restores to deform, and the power supply of the electrical equipment is communicated. In the whole power-off process of the temperature controller, the first plate 52 is used for resetting the elastic sheet 4 for fixing, the resetting block 63 is driven to slide through the locking spring 62, the locking block 61 is clamped on the first plate 52, the first plate 52 is limited to rotate towards the inner wall of the shell 1 for resetting, and the power supply of electrical equipment is disconnected. After the electrical equipment fault is eliminated, the reset block 63 drives the locking block 61 to unlock the first plate 52, so that the temperature controller is switched on, and the potential safety hazard of the temperature controller in use is reduced conveniently.
Example 2:
referring to fig. 4 and 5, the present embodiment 2 is different from embodiment 1 in that the locking member 6 further includes an adjustment part 7 to facilitate the thermostat to switch between the automatic reset state and the manual reset state. The adjusting section 7 includes an adjusting lever 71 inserted through the reset block 63 and the lock block 61, and a screw 72 opened on a circumferential side wall of the adjusting lever 71, and the adjusting lever 71 is screwed 72 into the reset block 63 and the lock block 61.
Referring to fig. 4 and 5, both ends of the adjusting lever 71 penetrate through the reset block 63 and the locking block 61, and an adjusting cap 73 is fixedly connected to one end of the adjusting lever 71 penetrating through the reset block 63. The adjusting rod 71 extends in a direction perpendicular to the sliding direction of the reset block 63, and the top end of the first plate 52 is clamped into the thread 72 of the adjusting rod 71 penetrating through one end of the locking block 61, so as to limit the rotation of the first plate 52 and the second plate 53, so that the first plate 52 is located on one side of the elastic sheet 4, and the elastic sheet 4 normally bounces to drive the movable contact 41 and the static contact 31 to abut against or separate from each other.
Referring to fig. 4, the thickness of the locking block 61 is greater than that of the first plate 52, and the ends of the first and second plates 52, 53 away from the hinge post 51 are inclined so that the ends of the first plate 52 away from the hinge post 51 snap into the threads 72. One end of the adjusting rod 71, which is far away from the adjusting cap 73, is always located at one side of the connecting plate 3 and the fixed contact 31, so that the adjusting rod 71 slides together with the locking block 61.
The implementation principle of embodiment 2 of the present application is as follows: when the temperature controller is installed on an overheating protection electrical device, the adjusting cap 73 is screwed and the adjusting rod 71 is driven to rotate, so that the adjusting rod 71 is rotated into the locking block 61. When the electrical equipment is abnormally heated, the temperature sensing disc 22 is heated and then bends towards the inside of the shell 1, so as to drive the push rod 23 to abut against the elastic sheet 4, and the moving contact 41 is separated from the static contact 31, so that the power supply of the electrical equipment is disconnected. The elastic piece 4 bends downward to drive the movable contact 41 to separate from the fixed contact 31 and simultaneously abut against the second plate 53, and drive the second plate 53 to rotate counterclockwise to rotate the first plate 52 in a direction away from the inner wall of the housing 1. So that the first plate 52 is rotated away from the locking block 61 and the locking spring 62 acts on the reset block 63. So that the reset block 63 drives the locking block 61 to slide downwards, so as to abut the locking block 61 against the side wall of the hinge column 51 and the upper surface of the first plate 52, and make the first plate 52 be located above the end of the elastic sheet 4. After the temperature of the electrical equipment is reduced, the temperature sensing disc 22 recovers deformation, and the elastic sheet 4 also recovers deformation until abutting against the lower surface of the first plate 52, so as to limit the movable contact 41 abutting against the fixed contact 31, and to keep the electrical equipment power supply which is abnormally heated in a normally-off state, so as to perform overheat protection on the electrical equipment.
When the electrical equipment is out of order, the reset block 63 drives the locking block 61 to slide towards the temperature sensing disc 22, so that the reset spring 54 acts on the second plate 53 to drive the first plate 52 to rotate to the position below the locking block 61, the limitation of the first plate 52 on the elastic sheet 4 is removed, the movable contact 41 is abutted against the fixed contact 31 again, the power supply of the electrical equipment is communicated again, and the manual reset of the temperature controller is realized.
When the temperature controller needs to be installed on an electrical device which is heated discontinuously, the adjusting cap 73 is screwed to drive the adjusting rod 71 to penetrate out of the locking block 61, the electrical device is heated to raise the temperature, the temperature sensing disc 22 is heated and bends towards the inside of the casing 1, the push rod 23 is driven to push the elastic sheet 4 to separate the moving contact 41 from the static contact 31, meanwhile, the elastic sheet 4 is pressed against the second plate 53 to rotate towards the lower side of the casing 1, and the first plate 52 is enabled to rotate away from the inner wall of the casing 1. Until the first plate 52 is rotated away from the locking block 61 and is clamped into the adjacent thread 72 on the adjusting rod 71, so as to fix the position of the first plate 52 at one side of the elastic sheet 4, and further to release the restriction of the first plate 52 and the second plate 53 on the elastic sheet 4, so that the temperature sensing disc 22 is heated, so that the elastic sheet 4 drives the movable contact 41 to be separated from the fixed contact 31, and when the temperature of the temperature sensing disc 22 is reduced, the elastic sheet 4 drives the movable contact 41 and the fixed contact 31 to be abutted again, thereby realizing the automatic reset of the temperature controller.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A small reset temperature controller comprises a shell (1), a guide frame (2) arranged in the shell (1) and a push rod (23) slidably mounted on the guide frame (2), wherein the guide frame (2) divides the shell (1) into a movable cavity (21) and an installation cavity (24), a temperature sensing disc (22) in contact with one end of the push rod (23) is arranged in the movable cavity (21), an elastic sheet (4) used for abutting against the other end of the push rod (23) is arranged in the installation cavity (24), a movable contact (41) is arranged on the elastic sheet (4), a fixed contact (31) in contact with the movable contact (41) is arranged on the guide frame (2), and the small reset temperature controller is characterized in that a fixing member (5) used for keeping the movable contact (41) and the fixed contact (31) separated from each other is arranged in the installation cavity (24) of the shell (1), and a locking member (C) used for locking the fixed state of the fixing member (5) is further arranged on the shell (1) 6) (ii) a
The fixing component (5) comprises a hinge column (51) hinged to the inner wall of the shell (1), a first plate (52) and a second plate (53), the first plate (52) is fixedly connected to the circumferential side wall of the hinge column (51), the first plate (52) is used for abutting against the upper surface of the elastic sheet (4) and limiting the movable contact (41) to abut against the fixed contact (31), the second plate (53) is used for abutting against the lower surface of the elastic sheet (4), and the elastic sheet (4) abuts against the second plate (53) and is used for starting a locking component (6) to limit the first plate (52) to be fixed in a reset state of the elastic sheet (4);
the locking member (6) comprises a locking block (61) sliding on the side wall of the shell (1) and a locking spring (62) arranged on the side wall of the shell (1), and the locking spring (62) is used for abutting against the locking block (61) against the upper surface of the first plate (52) and limiting the first plate (52) to reset;
fixedly connected with reset block (63) on locking block (61), offer the confession on casing (1) lateral wall slide spout (13) that reset block (63) slided, the one end fixed connection of locking spring (62) in on the lateral wall of reset block (63), other end fixed connection in spout (13) are close to on the cell wall of leading truck (2).
2. A miniature reset thermostat according to claim 1, wherein: fixedly connected with reset spring (54) on casing (1) inner wall, reset spring (54) keep away from the one end fixed connection of casing (1) inner wall in the diapire of second board (53).
3. A miniature reset thermostat according to claim 1, wherein: the locking piece (61) slide in on casing (1) inner wall, locking member (6) still including set up in locking piece (61) and reset block (63) inside regulation portion (7), regulation portion (7) are used for with first board (52) are located the state of flexure strip (4) one side is fixed.
4. A miniature reset thermostat according to claim 3, wherein: adjusting part (7) including running through adjust pole (71) of reset block (63) and locking block (61), set up in adjust a plurality of screw threads (72) on the lateral wall of pole (71) circumference, adjust pole (71) screw thread (72) connect in reset block (63) and locking block (61), and the both ends of adjusting pole (71) extend reset block (63) and locking block (61), the top card of first board (52) is gone into adjust pole (71) and is worn out adjacent two of locking block (61) one end in screw thread (72), adjust pole (71) be used for with first board (52) and second board (53) locking to make flexure strip (4) normally bounce drive moving contact (41) and static contact (31) butt or separation.
5. A miniature reset thermostat according to claim 1, wherein: one end, far away from the locking block (61), of the reset block (63) extends out of the shell (1).
6. A miniature reset thermostat according to claim 1, wherein: the elastic piece (4) is provided with a through hole (42) for the end of the push rod (23) to pass through, and the circumferential side wall of the push rod (23) is fixedly connected with a butting ring (231) which is butted against the upper surface of the elastic piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316113.2A CN113113264B (en) | 2021-03-24 | 2021-03-24 | Small reset temperature controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316113.2A CN113113264B (en) | 2021-03-24 | 2021-03-24 | Small reset temperature controller |
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| CN113113264B true CN113113264B (en) | 2021-11-09 |
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| DE102018100890B3 (en) * | 2018-01-16 | 2019-07-18 | Marcel P. HOFSAESS | Temperature-dependent switch |
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| EP0938116A2 (en) * | 1998-02-23 | 1999-08-25 | Marcel Hofsäss | Switch |
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|---|---|
| CN113113264A (en) | 2021-07-13 |
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