CN214705806U

CN214705806U - Novel structure of temperature controller

Info

Publication number: CN214705806U
Application number: CN202121310220.6U
Authority: CN
Inventors: 周浩
Original assignee: Guangzhou Rebenet Catering Equipment Manufacturing Co ltd
Current assignee: Guangzhou Rebenet Catering Equipment Manufacturing Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-11-12
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a novel structure of temperature controller sets for the temperature range that needs control through adjusting the structure, accepts the temperature variation of testee as the temperature sensing package, and the high temperature resistant liquid oil that is full of in it transmits the diaphragm capsule with the change of this liquid volume through the capillary, and the diaphragm capsule volume change can promote the ejector pin axial displacement who fixes at diaphragm capsule surface middle part, and then triggers magnet and tongue tube and carry out the break-make action to realize automatically regulated and controlled temperature's effect. The utility model adopts the above structure, have that interference immunity is strong, the reaction is rapid, sensitivity is high, longe-lived, the high advantage of the precision that adjusts the temperature.

Description

Novel structure of temperature controller

Technical Field

The utility model belongs to the technical field of the temperature control technique and specifically relates to a novel structure of temperature controller is related to.

Background

The 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 so as to generate certain special effects and generate on or off actions, and is also called a temperature control switch, a temperature protector and a temperature controller, and is called as the temperature controller for short. The temperature controller is mainly divided into a mechanical type and an electronic type according to the structural principle. The mechanical temperature controller is usually a snap-action temperature controller, a liquid expansion temperature controller, a pressure temperature controller, etc. The present document relates to a liquid-expansion thermostat.

The mechanical liquid expansion type temperature controller commonly used in the market at present mainly comprises an adjusting structure, a temperature sensing linkage structure (comprising a temperature sensing bulb, a capillary tube, high-temperature-resistant liquid oil and a diaphragm capsule), a metal sheet triggering on-off structure (an insertion sheet is led out of the metal sheet triggering on-off structure and is connected with an external circuit) and a fixing support. The working principle is as follows: the temperature range to be controlled is set through the adjusting structure, when the temperature sensing bulb receives the temperature change of a measured object (solid, liquid, gas and other substances), the high-temperature-resistant liquid oil (with the effects of expansion with heat and contraction with cold and incompressible liquid) filled in the temperature sensing bulb transmits the change of the liquid volume to the diaphragm capsule through the capillary tube, and the change of the diaphragm capsule volume can push the ejector rod fixed in the middle of the surface of the diaphragm capsule to move axially, so that the metal sheet is triggered to generate on-off action, and the effect of automatically adjusting and controlling the temperature is realized.

Although the structure is simple, the contact is exposed in the air and is easy to generate oxidation reaction with oxygen after a long time, so that poor contact is caused, and faults are easy to occur to influence the use; the temperature offset error is increased due to the structural deformation; the reaction speed is slow, and the temperature cannot be adjusted in time; the contact has poor corrosion resistance and abrasion resistance and short service life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel structure of temperature controller that interference immunity is strong, the reaction is rapid, sensitivity is high, longe-lived, the precision that adjusts the temperature is high.

In order to realize the above purpose, the utility model provides a following technical scheme, a novel structure of temperature controller, including casing assembly, be equipped with the bellows in the casing assembly, the bellows top is connected with the ejector pin, the inside bellows center pin that is equipped with of bellows, casing assembly outside one side is equipped with takes capillary temperature sensing package, the casing assembly is worn out to the capillary in taking the capillary temperature sensing package, its outside position has the capillary clamp plate fixed, casing assembly is equipped with the lid, cover and install first lever, install magnet on the first lever, the magnet below is equipped with the tongue tube, reset spring is installed to first lever, cover and install the second lever, the second lever sets up with first lever is adjacent.

Preferably, the reed switch is fixed on one side of the inner cavity of the wiring inserting piece seat, two ends of the reed switch are respectively connected with the wiring inserting pieces, the magnet is arranged in parallel with the reed switch and is fixed on the first lever, and the first lever and the second lever are both of rotating structures.

Preferably, a shell in the shell assembly is riveted with one end of an adjusting shaft nut, the other end of the adjusting shaft nut is riveted with an installation fixing plate, the adjusting shaft nut is located at the center of the shell and the installation fixing plate, and the shell, the adjusting shaft nut and the installation fixing plate are combined into a whole; the adjusting shaft is arranged in the adjusting shaft nut hole, a fine adjustment screw is arranged in the adjusting shaft hole, and a steel ball is arranged in the adjusting shaft hole and is positioned on the inner side of the fine adjustment screw; one end of the diaphragm capsule central shaft is arranged in the adjusting shaft hole and clings to the steel ball; the adjusting shaft is provided with a limiting piece, a baffle tongue on the mounting fixing plate limits the rotating angle of the adjusting shaft, the adjusting shaft is provided with a spring piece, one surface of the spring piece is tightly pressed against the limiting piece, and two outer ring leaves are clamped on the mounting fixing plate.

Preferably, the first lever and the second lever are connected through a tension spring; and two sides of the second lever are respectively provided with a return spring, the other side of the return spring abuts against the inner wall of the wiring plug-in sheet seat, and the middle part of the second lever abuts against the diaphragm capsule ejector rod.

Preferably, the capillary tube pressure plate fixes the capillary tube to the housing assembly by means of pressure plate fixing screws.

Preferably, the cover is fixedly attached to the housing assembly by means of set screws.

Preferably, the temperature sensing bulb with the capillary tube and the capsule are connected into a whole through the capillary tube, and the cavities of the temperature sensing bulb with the capillary tube and the capsule are filled with high-temperature-resistant oil and are connected and conducted through the inner hole of the capillary tube.

Preferably, the outgoing terminal plug blades are connected with an external circuit.

Preferably, the contact point of the reed switch is in the sealed glass tube.

Therefore, the utility model adopts the above structure, the magnetic control on-off structure composed of the reed pipe and the magnet, the reaction is rapid, the sensitivity is high, the contact point is in the sealed glass pipe and is not influenced by the external environment condition, the circuit on-off connection is more firm, the service life is long, and the corrosion resistance and the abrasion resistance are strong; the double-lever linkage structure is adopted, the matching is convenient, the transmission effect is better, the magnetic induction on-off function is formed together with the magnet and the reed switch, and the linkage is enhanced.

Drawings

Fig. 1 is a three-dimensional view of a novel structure of a temperature controller of the present invention;

FIG. 2 is a structural diagram of A, B cross-section according to the present invention;

FIG. 3 is a cross-sectional view of the present invention taken along section line A;

FIG. 4 is a cross-sectional view of the present invention taken along section line B;

fig. 5 is an exploded view of the present invention;

fig. 6 is a front view of the present invention;

fig. 7 is a left side view of the present invention;

fig. 8 is a top view of the present invention;

fig. 9 is a front view of the present invention in a closed state;

fig. 10 is a front view of the present invention in a conducting state;

fig. 11 is a schematic structural view of the present invention in a closed state;

fig. 12 is a schematic structural diagram of the present invention in the on state.

Description of the drawings, 1, a housing assembly; 2. adjusting the shaft nut; 3. an adjustment shaft; 4. fine adjustment of screws; 5. mounting a fixed plate; 6. a limiting sheet; 7. a spring plate; 8. steel balls; 9. a bellows central axis; 10. a bellows; 11. a top rod; 12. a cover; 13. a first lever; 14. a second lever; 15. a wiring plug-in sheet seat; 16. a capillary tube platen; 17. a tension spring; 18. a return spring; 19. a cover fixing screw; 20. a pressing plate fixing screw; 21. a magnet; 22. a capillary tube temperature sensing bulb; 23. a wiring plug-in sheet; 24. a reed switch.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

As shown in fig. 1-4, a novel structure of temperature controller, including housing assembly 1, be equipped with bellows 10 in the housing assembly 1, bellows 10 top is connected with ejector pin 11, the inside bellows center pin 9 that is equipped with of bellows 10, the outside one side of housing assembly 1 is equipped with takes capillary thermal bulb 22, the capillary in taking capillary thermal bulb 22 wears out housing assembly 1, and its outside position has capillary clamp plate 16 to fix, housing assembly 1 is equipped with lid 12, install first lever 13 on the lid 12, install magnet 21 on the first lever 13, magnet 21 below is equipped with tongue tube 24, reset spring 18 is installed to first lever 13, install second lever 14 on the lid 12, second lever 14 sets up with first lever 13 is adjacent. The dry reed pipe 24 is fixed on one side of the inner cavity of the wiring insert seat 15, the two ends of the dry reed pipe 24 are respectively connected with the wiring insert 23, the magnet 21 is arranged in parallel with the dry reed pipe 24, and the first lever 13 and the second lever 14 are both in rotating structures. The belt capillary temperature sensing bulb 22 and the diaphragm capsule 10 are connected into a whole through the capillary, the capillary temperature sensing bulb 22 and the diaphragm capsule 10 cavity are filled with high temperature resistant oil, and are connected and conducted through the inner hole of the capillary. When the temperature of the oil in the thermal bulb changes, the volume change of the oil causes the bellows 10 to expand and contract through oil transmission, drives the ejector rod 11 to move axially, and causes the first lever 13 and the second lever 14 to be linked, thereby realizing the purpose that the oil drives the magnet 21 to move and realizing the on-off function of a product circuit.

As shown in fig. 5, the shell in the shell assembly 1 is riveted with one end of an adjusting shaft nut 2, the other end of the adjusting shaft nut 2 is riveted with a mounting fixing plate 5, the adjusting shaft nut 2 is located at the center of the shell and the mounting fixing plate 5, and the shell, the adjusting shaft nut 2 and the mounting fixing plate 5 are combined into a whole; the adjusting shaft 3 is arranged in a hole of the adjusting shaft nut 2, a fine adjustment screw 4 is arranged in the hole of the adjusting shaft 3, and a steel ball 8 is arranged in the hole of the adjusting shaft 3 and is positioned at the inner side of the fine adjustment screw 4; one end of the diaphragm capsule central shaft 9 is arranged in the hole of the adjusting shaft 3 and is tightly attached to the steel ball 8; the adjusting shaft 3 is provided with a limiting piece 6, a stop tongue on the mounting fixing plate 5 limits the rotating angle of the adjusting shaft 3, the adjusting shaft 3 is provided with a spring piece, one surface of the spring piece compresses the limiting piece 6, and two outer rings of the spring piece are clamped on the mounting fixing plate 5.

The first lever 13 and the second lever 14 are connected through a tension spring 17; and two sides of the second lever 14 are respectively provided with a return spring 18, the other side of the return spring 18 abuts against the inner wall of the wire connecting plug seat 15, and the middle part of the second lever 14 abuts against the bellows ejector rod 11. The magnetic control on-off structure composed of the reed switch 24 and the magnet 21 has the advantages of rapid response, high sensitivity, more firm circuit on-off connection, long service life and strong corrosion resistance and abrasion resistance, and a contact point is arranged in the sealed glass tube and is not influenced by external conditions. The double-lever linkage structure is adopted, the matching is convenient, the transmission effect is better, the magnetic induction on-off function is formed together with the magnet 21 and the reed pipe 24, and the linkage is enhanced.

In the structure of the temperature controller, the capillary tube pressing plate 16 fixes the capillary tube on the shell component 1 through a pressing plate fixing screw 20. The cover 12 is fixedly connected to the housing assembly 1 by means of fixing screws 19. The magnet 21 may include, but is not limited to, a bar magnet.

The utility model discloses a theory of operation does:

as shown in fig. 11, when the thermostat is in the off state: the bar magnet is far away from the reed pipe 24, and the reed pipe 24 is not conducted at the moment.

As shown in fig. 12, when the thermostat is in the on state: the temperature controller is started by rotating the adjusting shaft 3 clockwise, when the temperature controller is rotated to a temperature control range needing to be set, the adjusting shaft 3 rotates to generate axial movement, the steel ball 8 pushes the diaphragm box central shaft 9 to drive the diaphragm box 10 and the ejector rod 11 to move upwards synchronously, the ejector rod 11 moves upwards to push one end of the second lever 14 to rotate, and the first lever 13 is driven to rotate under the action of the tension spring 17, so that the bar magnet rotates together with the first lever 13 to rapidly move in parallel to the side of the reed pipe 24, at the moment, the reed pipe 24 is conducted, and an external control circuit is connected through the wiring insertion sheet 23 to start heating.

The temperature sensing bulb 22 with capillary tube is installed on the measured object, along with the temperature rise of the temperature sensing bulb fixed on the measured object, the capsule 10 continuously expands to drive the ejector rod 11 on the center of the capsule to continuously generate upward axial displacement, the second lever 14 is pushed to continuously and slowly rotate, when the temperature reaches a set value, the second lever 14 also rotates over a critical point, at the moment, under the continuous action of the reset spring 18, the first lever 13 rapidly rotates to drive the bar magnet fixed on the first lever to face away from the reed pipe 24, the reed pipe 24 is disconnected, and the cut-off control circuit stops heating.

When the temperature of the temperature sensing bulb arranged on the measured object begins to drop: the capsule 10 begins to contract to drive the ejector rod 11 thereon to move reversely, thereby driving the second lever 14 connected with the capsule to rotate reversely;

when the temperature of the temperature sensing bulb is reduced to the temperature control lower limit, the second lever 14 rotates to a balance point to drive the tension spring to act, the first lever 13 connected with the tension spring reversely and rapidly rotates, the bar magnet rapidly rotates and approaches the reed pipe 24, the reed pipe 24 is communicated with a control circuit, and the system starts to heat again. The above steps are repeated in a circulating way so as to achieve the aim of controlling the temperature.

The utility model relates to a novel structure of temperature controller mainly used low pressure undercurrent control circuit, nevertheless do not get rid of other application scope that can expand.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The novel structure of the temperature controller is characterized by comprising a shell assembly (1), wherein a membrane box (10) is arranged in the shell assembly (1), the top of the membrane box (10) is connected with a push rod (11), a membrane box central shaft (9) is arranged inside the membrane box (10), one side of the outside of the shell assembly (1) is provided with a capillary temperature sensing bulb (22), capillaries in the capillary temperature sensing bulb (22) penetrate out of the shell assembly (1), a capillary pressing plate (16) is arranged at the outer side of the capillary temperature sensing bulb for fixation, a cover (12) is installed on the shell assembly (1), a first lever (13) is installed on the cover (12), a magnet (21) is installed on the first lever (13), a reed drying pipe (24) is arranged below the magnet (21), a reset spring (18) is installed on the first lever (13), a second lever (14) is installed on the cover (12), the second lever (14) is arranged adjacent to the first lever (13).

2. The novel structure of a temperature controller according to claim 1, wherein the reed switch (24) is fixed on one side of an inner cavity of the terminal plug seat (15), two ends of the reed switch (24) are respectively connected with a terminal plug (23), the magnet (21) and the reed switch (24) are arranged in parallel, and the first lever (13) and the second lever (14) are both rotating structures.

3. The novel structure of a thermostat is characterized in that a shell in the shell assembly (1) is riveted with one end of an adjusting shaft nut (2), the other end of the adjusting shaft nut (2) is riveted with a mounting fixing plate (5), the adjusting shaft nut and the mounting fixing plate (5) are located at the center of the shell and the mounting fixing plate (5), and the shell, the adjusting shaft nut (2) and the mounting fixing plate (5) are combined into a whole; the adjusting shaft (3) is arranged in a hole of the adjusting shaft nut (2), a fine adjustment screw (4) is arranged in the hole of the adjusting shaft (3), and a steel ball (8) is arranged in the hole of the adjusting shaft (3) and is positioned on the inner side of the fine adjustment screw (4); one end of the diaphragm capsule central shaft (9) is arranged in a hole of the adjusting shaft (3) and is tightly attached to the steel ball (8); spacing piece (6) are installed to regulating spindle (3), the fender tongue on installation fixed plate (5) limits regulating spindle (3) pivoted angle, install spring leaf (7) on regulating spindle (3), spring leaf (7) one side compresses tightly spacing piece (6), and its outer lane two leaf card is on installation fixed plate (5).

4. The new structure of a thermostat according to claim 1, characterized in that the first lever (13) and the second lever (14) are connected by a tension spring (17); reset springs (18) are respectively installed on two sides of the second lever (14), the other side of each reset spring (18) abuts against the inner wall of the corresponding wire inserting sheet seat (15), and the middle of the second lever (14) abuts against the diaphragm capsule ejector rod (11).

5. The new structure of a thermostat according to claim 1, characterized in that the capillary tube pressure plate (16) fixes the capillary tube to the housing assembly (1) by means of pressure plate fixing screws (20).

6. A new structure of a thermostat according to claim 1, characterized in that the cover (12) is fixedly connected to the housing assembly (1) by means of fixing screws (19).

7. The novel structure of a temperature controller according to claim 1, characterized in that the thermal bulb with capillary tube (22) and the capsule (10) are connected into a whole through the capillary tube, and the cavities of the thermal bulb with capillary tube (22) and the capsule (10) are filled with high temperature resistant oil and are connected and conducted through the inner hole of the capillary tube.