CN216133823U - Bipolar magnetic-sensing temperature limiter - Google Patents
Bipolar magnetic-sensing temperature limiter Download PDFInfo
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- CN216133823U CN216133823U CN202121502347.8U CN202121502347U CN216133823U CN 216133823 U CN216133823 U CN 216133823U CN 202121502347 U CN202121502347 U CN 202121502347U CN 216133823 U CN216133823 U CN 216133823U
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Abstract
The utility model discloses a bipolar magnetic sensing temperature limiter which comprises a shell, a soft magnetic mechanism, a partition plate, a hard magnetic mechanism, a touch sensing mechanism and a terminal mechanism, wherein the soft magnetic mechanism comprises a soft magnetic body and an action inner spring, the partition plate is supported at the top end of a partition plate supporting block, the hard magnetic mechanism comprises a hard magnetic body and a reset inner spring, the touch sensing mechanism is arranged at the bottom end of the hard magnetic mechanism, the terminal mechanism comprises a rivet and a terminal insertion sheet, and a heat conducting cover is arranged at the top of the shell. The utility model is limited by the soft magnetic limiting ring through the soft magnetic and the clapboard supporting block through the clapboard, the push rod is limited by the clapboard, the push rod is pressed by the hard magnetic through the ejector head, the diameter of the ejector head is equal to that of the push rod ejector hole, the diameter of the movable guide rod head is equal to that of the push rod movable hole, the width of the push block is equal to that of the push rod mounting groove, and the like, thereby providing a bipolar magnetic-sensing temperature limiter with high precision, reliable magnetic closing action and convenient production for users.
Description
Technical Field
The utility model relates to … …, in particular to … …
Background
In the household appliance industry, most machine temperature control is basically used for a kick type temperature controller and used as temperature control, the existing temperature controller has a monopole structure and a dipole structure, the dipole temperature controller is used as an aggregate, the functions of the two monopoles are integrated, the bimetallic strip has a large size (phi 17mm), the monopole has phi 12.7mm, and the temperature of the monopole is difficult to manufacture at high temperature; the bimetallic strip with large temperature volume has the defects of temperature hysteresis, large temperature precision range, basically more than +/-3 ℃, low qualification rate and poor temperature stability when the operating temperature is high (more than 100 ℃), and the other factors are that the consistency of the temperature made by the domestic bimetallic strip is poor due to the fact that the production equipment of the bimetallic strip is not advanced and the process is immature; the imported bimetallic strips have high qualification rate, but have high purchasing difficulty, high price and long delivery period, can not normally supply materials, and seriously influence the production. In addition, the existing magnetic steel temperature limiter (mechanical type) can only separate soft magnet from hard magnet, and the two magnets need to be attracted by external force. Therefore, a bipolar magneto-dependent temperature limiter capable of replacing bimetallic strips is designed, and the structural principle of the bipolar magneto-dependent temperature limiter is as follows: in the process of gradually rising the temperature, when the temperature reaches the soft magnetic Curie point, the soft magnetic is changed from magnetic conduction to non-magnetic conduction, at the moment, the action inner spring separates the soft magnetic from the hard magnetic, and the movable contact and the fixed contact are pushed open under the action of the push rod, so that the purpose of controlling the temperature is achieved. When the temperature is reduced to the normal temperature, the distance between the soft magnet and the hard magnet is very close, the soft magnet is changed from non-magnetic conduction to magnetic conduction under the action of the reset inner spring, the hard magnet and the soft magnet are attracted in a certain distance, and at the moment, the temperature limiter is reconnected with the circuit. The bipolar magnetic sensing temperature limiter structure mainly comprises an aluminothermic cover (temperature sensing surface), soft magnet (temperature sensing magnetic steel), an action inner spring, hard magnet (permanent magnet), a reset inner spring, a partition plate, a push rod, a long rivet, a static contact, a short rivet, a movable contact, a shell and a terminal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bipolar magneto-dependent temperature limiter which is high in precision, reliable in magnetic combination action and convenient to produce.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a bipolar magnetically sensitive temperature limiter comprising:
the shell comprises a partition plate bearing block, a static contact plate mounting groove, a push rod mounting groove, a soft magnetic limiting ring, a push rod movable hole, a terminal jack and a movable contact plate mounting groove, wherein the soft magnetic limiting ring is arranged at the top end inside the shell, the partition plate bearing block is arranged at the front end and the rear end of the bottom of the soft magnetic limiting ring, the static contact plate mounting groove, the push rod mounting groove and the movable contact plate mounting groove are respectively arranged at the bottom of the partition plate bearing block, the static contact plate mounting groove comprises limiting walls respectively arranged on the inner sides, the terminal jack is respectively arranged at the bottom of the shell, and the push rod movable hole is arranged at the bottom of the push rod mounting groove;
the soft magnetic mechanism comprises a soft magnet and an action inner spring, the soft magnet is arranged in the soft magnet limiting ring, and one end of the action inner spring is abutted against the bottom of the soft magnet;
the clapboard is supported at the top end of the clapboard supporting block and comprises a push rod pushing hole arranged at the center;
the hard magnetic mechanism comprises a hard magnet and a return inner spring, one end of the return inner spring is abutted against the top of the partition plate, the other end of the return inner spring is abutted against the bottom of the hard magnet, and the top of the hard magnet is abutted against the other end of the action inner spring;
the touch mechanism is arranged at the bottom end of the hard magnetic mechanism and comprises a push rod, a static contact piece, a static contact, a movable contact piece and a movable contact, the static contact pieces are respectively arranged in the static contact piece mounting grooves and comprise static contact rivet holes and static contact point holes which are arranged from outside to inside, the static contacts are respectively arranged in the static contact holes, the push rod is arranged in the push rod mounting groove and comprises a pushing head, a pushing block and a movable guide rod head which are arranged from top to bottom, the pushing head is arranged in the pushing hole of the push rod, the movable guide rod head is arranged in the movable hole of the push rod, the movable contact pieces are respectively arranged in the movable contact piece mounting grooves and comprise movable contact point holes, movable contact pressing points, bending parts and movable contact rivet holes, the movable contact hole and the movable contact pressing point are arranged at the top of the movable contact piece from outside to inside, the bending part is arranged at the center of the movable contact piece, the movable contact rivet hole is arranged at the bottom of the movable contact piece, and the movable contact is arranged in the movable contact hole;
the terminal mechanism comprises a rivet and terminal inserting pieces, the terminal inserting pieces are respectively arranged in the terminal inserting pieces, one end of the rivet penetrates through the shell and is respectively connected with the static contact rivet hole and the movable contact rivet hole, and the other end of the rivet is respectively connected with the terminal inserting pieces;
the heat conducting cover is arranged on the top of the shell and comprises heat conducting cover connecting holes arranged at two ends.
Further, the moving contacts are respectively induced by the static contacts.
Furthermore, the movable contact is pressed by a pushing block through a movable contact pressing point and a bent part respectively, and the section of the bent part is U-shaped.
Further, the baffle is spacing by baffle bearing piece, the push rod is spacing by the baffle, the push rod is pressed by hard magnetism through the top moving head, just the diameter of top moving head and the diameter of push rod top moving hole, the diameter of activity guide bar head equals the diameter of push rod activity hole, the width that promotes the piece equals the width of push rod mounting groove.
Further, the hard magnet is attracted by the soft magnet.
Furthermore, the soft magnet is limited by a soft magnet limiting ring.
The utility model has the beneficial effects that:
the utility model is limited by the soft magnetic limiting ring through the soft magnetic and the clapboard supporting block through the clapboard, the push rod is limited by the clapboard, the push rod is pressed by the hard magnetic through the ejector head, the diameter of the ejector head is equal to that of the push rod ejector hole, the diameter of the movable guide rod head is equal to that of the push rod movable hole, the width of the push block is equal to that of the push rod mounting groove, and the like, thereby providing a bipolar magnetic-sensing temperature limiter with high precision, reliable magnetic closing action and convenient production for users.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is one of the perspective views of the present invention;
FIG. 3 is a second perspective view of the present invention;
FIG. 4 is one of the perspective views of the housing of the present invention;
FIG. 5 is a second perspective view of the housing of the present invention;
FIG. 6 is a schematic structural view of the soft magnetic mechanism, the spacer, the hard magnetic mechanism, the touch mechanism and the terminal mechanism in the present invention;
FIG. 7 is a sectional view showing a normally closed state in the present invention;
FIG. 8 is a second sectional view of the normally closed state of the present invention;
fig. 9 is a sectional view showing a normally open state in the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
According to fig. 1-9:
a bipolar magnetically sensitive temperature limiter comprising:
the shell 1 comprises a partition plate bearing block 11, a static contact piece mounting groove 12, a push rod mounting groove 13, a soft magnetic limiting ring 14, a push rod movable hole 15, a terminal jack 16 and a movable contact piece mounting groove 17, wherein the soft magnetic limiting ring 14 is annularly arranged at the top end in the shell 1, the partition plate bearing block 11 is arranged at the front end and the rear end of the bottom of the soft magnetic limiting ring 14, the static contact piece mounting groove 12, the push rod mounting groove 13 and the movable contact piece mounting groove 17 are respectively arranged at the bottom of the partition plate bearing block 11, the static contact piece mounting groove 12 comprises limiting walls 121 respectively arranged on the inner sides, the terminal jack 16 is respectively arranged at the bottom of the shell 1, and the push rod movable hole 15 is opened at the bottom of the push rod mounting groove 13;
the soft magnetic mechanism 2 comprises a soft magnet 21 and an action inner spring 22, the soft magnet 21 is arranged in the soft magnet limiting ring 14, and one end of the action inner spring 22 abuts against the bottom of the soft magnet 21;
the clapboard 3 is supported at the top end of the clapboard support block 11 and comprises a push rod pushing hole 31 arranged at the center;
the hard magnetic mechanism 4 comprises a hard magnet 41 and a return inner spring 42, one end of the return inner spring 42 is propped against the top of the partition plate 3, the other end of the return inner spring is propped against the bottom of the hard magnet 41, and the top of the hard magnet 41 is propped against the other end of the action inner spring 22;
the touch mechanism 5 is arranged at the bottom end of the hard magnetic mechanism 4 and comprises a push rod 51, a static contact piece 52, a static contact piece 53, a movable contact piece 54 and a movable contact point 55, wherein the static contact piece 52 is respectively arranged in the static contact piece installation groove 12, the static contact piece 52 comprises a static contact rivet hole 521 and a static contact hole 522 which are arranged from outside to inside, the static contact piece 53 is respectively arranged in the static contact hole 522, the push rod 51 is arranged in the push rod installation groove 13 and comprises a push head 511, a push block 512 and a movable guide rod head 513 which are arranged from top to bottom, the push head 511 is arranged in the push rod push hole 31, the movable guide rod head 513 is arranged in the push rod movable hole 15, the movable contact piece 54 is respectively arranged in the movable contact piece installation groove 17 and comprises a movable contact hole 541, a movable contact pressing point 542, a bending part 543 and a movable contact rivet hole 544, the movable contact hole 541 and the movable contact point 542 are arranged at the top of the movable contact piece 54 from outside to inside, the bending part 543 is arranged at the center of the movable contact piece 54, the moving contact rivet hole 544 is arranged at the bottom of the moving contact 54, and the moving contact 55 is arranged in the moving contact hole 541;
the terminal mechanism 6 comprises a rivet 61 and a terminal inserting sheet 62, the terminal inserting sheet 62 is respectively arranged in the terminal inserting hole 16, one end of the rivet 61 penetrates through the shell 1 and is respectively connected with the static contact rivet hole 521 and the movable contact rivet hole 544, and the other end of the rivet is respectively connected with the terminal inserting sheet 62;
the heat conducting cover 7 is arranged on the top of the shell 1 and comprises heat conducting cover connecting holes 71 arranged at two ends.
Since the movable contacts 55 are respectively sensed by the stationary contacts 53, when a user uses the present invention, the circuit of the present invention is turned on and off by sensing and desensitizing between the movable and stationary contacts.
When the user uses the utility model, the tightness of the movement of the push rod 51 can be ensured by using the push rod moving hole 15, and the user can also know the circuit opening and closing condition of the utility model in the year by observing the extending length of the push rod 51 in the push rod moving hole 15.
Because the moving contact 55 is pressed by the pushing block 512 through the moving contact pressing point 542 and the bending part 543 respectively, and the section of the bending part 543 presents a U shape, when a user uses the present invention, the push rod 51 moves up and down in the present invention through the use of the U-shaped bending part 543, so that the moving contact 55 moves up and down through the pressing and zero-acting-force driving of the bending part 543, and the moving contact 55 is sensed and lost by the fixed contact 53 through the up and down movement, thereby achieving the connection and disconnection of the circuit of the present invention.
Because the partition board 3 is limited by the partition board supporting block 11, the push rod 51 is limited by the partition board 3, the push rod 51 is pressed by the hard magnet 41 through the pushing head 511, the diameter of the pushing head 511 is equal to that of the push rod pushing hole 31, the diameter of the movable guide rod head 513 is equal to that of the push rod movable hole 15, and the width of the push block 512 is equal to that of the push rod mounting groove 13, when a user uses the utility model, through the equal diameter and equal width, when the push rod 51 is pressed by the hard magnet 41, the effect of position shaking and deflection can be ensured not to occur when the push rod 51 moves downwards in the vertical direction, and the accurate pressing of the push block 512 on the movable contact pressing point 542 can be ensured, so as to realize the downward movement of the movable contact 55, thereby achieving the effect of the circuit breaking of the utility model, when the hard magnet 41 loses the attraction of the soft magnet 21, and rebounds through the action of the reset inner spring 42, the push rod 51 loses the pressing force of the hard magnet 41, and the movable contact pressing point 542 moves upwards through the complex shape of the bending part 543, so that the push rod 51 moves upwards through pushing the push block 512.
The hard magnet 41 is attracted by the soft magnet 21.
Because the soft magnet 21 is limited by the soft magnet limiting ring 14, when a user uses the utility model, the phenomenon that the soft magnet 21 moves downwards when the soft magnet 21 is magnetically combined with the hard magnet 41 after the soft magnet 21 is magnetically conducted can be prevented through the limiting of the limiting ring 14, thereby influencing the normal practicability of the utility model.
When a user uses the utility model, firstly, the soft magnetic mechanism 2 and the hard magnetic mechanism 4 are arranged in the shell 1, and because the action internal spring 22 is arranged between the soft magnetic 21 and the hard magnetic 41, and the reset internal spring 42 is arranged under the hard magnetic 41, and the parts are all arranged on the top of the partition board 3, the bottom of the partition board 3 is provided with the touch mechanism 5, and the touch mechanism 5 penetrates through the shell 1 through a rivet 61 and is connected with the terminal insert 62.
Then when the user uses the device, when the temperature detected from the outside is increased to the curie point temperature set by the utility model, the soft magnet 21 loses the magnetic conductivity, at this time, the action inner spring 22 loses the attraction force of the soft magnet 21 to the hard magnet 41, so that the hard magnet 41 and the soft magnet 21 are separated by the rebound of the action inner spring 22, and after the hard magnet 41 absorbs the magnetic attraction of the soft magnet 21, the hard magnet 41 moves downwards due to the rebound of the action inner spring 22, so that the pushing head 511 at the top of the push rod 51 is pressed downwards, so that the pushing block 512 presses the moving contact pressing point 542 downwards, the moving contact 55 moves downwards through the deformation of the U-shaped bending part, so that the moving contact 55 loses the inductive contact 543 with the static contact 53, thereby the device achieves the purpose of breaking the circuit,
when the temperature detected from the outside is cooled, the soft magnet 21 is changed from non-magnetic conduction to magnetic conduction, so that the hard magnet 41 is subjected to the magnetic summation of the soft magnet 21 and the soft magnet 21, at the moment, the push rod 51 loses the pressing force of the hard magnet 41, the U-shaped bending part 543 is bent to be in a shape of a circle, the movable contact 55 is moved upwards, the movable contact 55 is in inductive contact with the fixed contact 53, and the purpose of closing the circuit is achieved.
Because the bipolar magnetic sensing temperature limiter adopts the method of attracting and separating the soft magnet 21 and the hard magnet 41: when the temperature rises to the curie point temperature, because the soft magnet 21 loses the magnetic permeability, the hard magnet 41 is separated from the soft magnet 21 by the action inner spring 22, because of the action inner spring 22, the attracting directions of the two magnet sheets are consistent and separated, and the downward movement of the hard magnet 41 presses the push rod 55 to separate the moving contact and the static contact in an induction way, thereby achieving the purpose of breaking the circuit, when the temperature is cooled, because the distance between the soft magnet 21 and the hard magnet 41 is very close, the reset inner spring 42 plays a rebound role, and at the moment, the soft magnet 21 is changed from non-magnetic conduction to magnetic conduction, thereby carrying out the magnetic attraction on the hard magnet 41, and through the attraction between the hard magnet 41 and the soft magnet 21, at the moment, the push rod 55 loses the pressing force of the hard magnet 41, thereby leading the moving contact 55 to be communicated with the static contact 53, achieving the purpose of connecting the circuit, and the structure of the bipolar magnetic sensitive temperature limiter of the utility model is designed into four connecting terminals, i.e. the two sets of unipolar structures are grouped together to form a bipolar structure.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (6)
1. A bipolar magnetically sensitive temperature limiter, comprising:
the shell comprises a partition plate bearing block, a static contact plate mounting groove, a push rod mounting groove, a soft magnetic limiting ring, a push rod movable hole, a terminal jack and a movable contact plate mounting groove, wherein the soft magnetic limiting ring is arranged at the top end inside the shell, the partition plate bearing block is arranged at the front end and the rear end of the bottom of the soft magnetic limiting ring, the static contact plate mounting groove, the push rod mounting groove and the movable contact plate mounting groove are respectively arranged at the bottom of the partition plate bearing block, the static contact plate mounting groove comprises limiting walls respectively arranged on the inner sides, the terminal jack is respectively arranged at the bottom of the shell, and the push rod movable hole is arranged at the bottom of the push rod mounting groove;
the soft magnetic mechanism comprises a soft magnet and an action inner spring, the soft magnet is arranged in the soft magnet limiting ring, and one end of the action inner spring is abutted against the bottom of the soft magnet;
the clapboard is supported at the top end of the clapboard supporting block and comprises a push rod pushing hole arranged at the center;
the hard magnetic mechanism comprises a hard magnet and a return inner spring, one end of the return inner spring is abutted against the top of the partition plate, the other end of the return inner spring is abutted against the bottom of the hard magnet, and the top of the hard magnet is abutted against the other end of the action inner spring;
the touch mechanism is arranged at the bottom end of the hard magnetic mechanism and comprises a push rod, a static contact piece, a static contact, a movable contact piece and a movable contact, the static contact pieces are respectively arranged in the static contact piece mounting grooves and comprise static contact rivet holes and static contact point holes which are arranged from outside to inside, the static contacts are respectively arranged in the static contact holes, the push rod is arranged in the push rod mounting groove and comprises a pushing head, a pushing block and a movable guide rod head which are arranged from top to bottom, the pushing head is arranged in the pushing hole of the push rod, the movable guide rod head is arranged in the movable hole of the push rod, the movable contact pieces are respectively arranged in the movable contact piece mounting grooves and comprise movable contact point holes, movable contact pressing points, bending parts and movable contact rivet holes, the movable contact hole and the movable contact pressing point are arranged at the top of the movable contact piece from outside to inside, the bending part is arranged at the center of the movable contact piece, the movable contact rivet hole is arranged at the bottom of the movable contact piece, and the movable contact is arranged in the movable contact hole;
the terminal mechanism comprises a rivet and terminal inserting pieces, the terminal inserting pieces are respectively arranged in the terminal inserting pieces, one end of the rivet penetrates through the shell and is respectively connected with the static contact rivet hole and the movable contact rivet hole, and the other end of the rivet is respectively connected with the terminal inserting pieces;
the heat conducting cover is arranged on the top of the shell and comprises heat conducting cover connecting holes arranged at two ends.
2. A bipolar magneto-sensitive temperature limiter according to claim 1, wherein said moving contacts are respectively induced by stationary contacts.
3. A bipolar magnetic sensing temperature limiter according to claim 1, wherein the movable contact is pushed by a pushing block through a movable contact pushing point and a bending part respectively, and the bending part has a U-shaped cross section.
4. The bipolar magnetic temperature limiter according to claim 1, wherein the partition plate is limited by a partition plate support block, the push rod is limited by a partition plate, the push rod is pressed by a hard magnet through a push head, the diameter of the push head is equal to that of a push rod push hole, the diameter of the movable guide rod head is equal to that of a push rod movable hole, and the width of the push block is equal to that of a push rod installation groove.
5. A bipolar magneto-sensitive temperature limiter according to claim 1 wherein the hard magnet is attracted by soft magnet.
6. A bipolar magneto-sensitive temperature limiter according to claim 1 wherein the soft magnet is limited by a soft magnetic limiting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121502347.8U CN216133823U (en) | 2021-07-04 | 2021-07-04 | Bipolar magnetic-sensing temperature limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121502347.8U CN216133823U (en) | 2021-07-04 | 2021-07-04 | Bipolar magnetic-sensing temperature limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133823U true CN216133823U (en) | 2022-03-25 |
Family
ID=80767150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121502347.8U Expired - Fee Related CN216133823U (en) | 2021-07-04 | 2021-07-04 | Bipolar magnetic-sensing temperature limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133823U (en) |
-
2021
- 2021-07-04 CN CN202121502347.8U patent/CN216133823U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |