CN210349703U - Small-size low-cost liquid type thermal protector - Google Patents
Small-size low-cost liquid type thermal protector Download PDFInfo
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- CN210349703U CN210349703U CN201921765545.6U CN201921765545U CN210349703U CN 210349703 U CN210349703 U CN 210349703U CN 201921765545 U CN201921765545 U CN 201921765545U CN 210349703 U CN210349703 U CN 210349703U
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Abstract
The utility model discloses a little volume low-cost liquid formula heat protector, which comprises a base, the base be provided with liquid expanding power component through the connecting piece on the surface, be located be provided with the baffle in the base of liquid expanding power component below, the bottom of baffle is provided with the ejector pin, be provided with switch module on the ejector pin and on the bottom of frame, the utility model aims at providing a temperature overheat protection who is used for various heating apparatus and heating device, have simple structure practicality, small, the low price, the liquid formula heat protector of the fast characteristics of temperature response.
Description
Technical Field
The utility model belongs to the technical field of the electrical apparatus protection device of family and specifically relates to a little volume low-cost liquid formula heat protector.
Background
Along with the development of society, more and more kinds of electric appliances are applied to life to bring convenience to daily life of people, and a heating appliance and a heating device belong to one of electric appliances commonly used in daily life of people, and heating operation is carried out through heating of electronic elements, but after the heating appliance and the heating device are started for a long time, due to the fact that the temperature of the electronic elements is too high, the electronic elements in the heating appliance and the heating device are damaged due to the fact that the temperature is too high, the phenomenon of short circuit and fire is caused, and the safety of people is threatened; therefore, some thermal protectors for performing overheat protection when the temperature is too high are added in the heating appliances and the heating devices, but the structures of part of the thermal protectors are more complicated, so that the price is relatively high, and the reaction is relatively slow when the temperature of the heating appliances and the heating devices is too high; therefore, there is a need for an improved structure of the thermal protector.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to above-mentioned technique is not enough, provides a temperature overheat protection for various heating utensil and heating device, has the liquid formula heat protector of simple structure practicality, small, the low price, the fast characteristics of temperature response.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a little volume low-cost liquid formula thermal protector, includes the base, the base be provided with liquid expanding power component through the connecting piece on the surface, be located be provided with the baffle in the base of liquid expanding power component below, the bottom of baffle is provided with the ejector pin, be provided with switch assembly on the ejector pin and on the bottom of frame.
Further, liquid expanding power component comprises diaphragm chamber, diaphragm, capillary and temperature sensing package, the diaphragm chamber passes through the connecting piece and sets up on the surface of base, the diaphragm sets up in the diaphragm chamber, the temperature sensing package sets up in the diaphragm chamber of diaphragm top, the one end of capillary is run through in the diaphragm chamber and is connected with the temperature sensing package.
Furthermore, the connecting piece includes clamp plate and self tapping screw, the clamp plate sets up the one side at the diaphragm capsule, self tapping screw runs through the bottom surface both sides of diaphragm capsule and lets in the base surface.
Furthermore, the switch component comprises a terminal, reeds, moving contacts, fixed contacts and oxhorn, wherein the reeds and the oxhorn are at least provided with two reeds, the terminal is arranged at the bottom of the base, the reeds are arranged on two sides of a cavity in the base, at least two spacing blocks are arranged in the base between the two reeds, the moving contacts and the fixed contacts are respectively arranged on two sides of the top of each reed, the bottom end of the ejector rod is matched in a matching hole in the bottom of the base, the middle part of the ejector rod is located between the two spacing blocks, the oxhorn is arranged on the base on two sides of the middle part of the ejector rod, and the oxhorn is respectively matched and connected with the moving contacts and.
Furthermore, the number of the terminals is at least four, short rivets are introduced into the two terminals and the two reeds and are fixed in the base through the short rivets, and long rivets are introduced into the other two terminals and the two oxhorn and are fixed in the base through the long rivets.
The utility model has the advantages that:
the utility model is used for various heating appliances and heating device's temperature overheat protection has simple structure practicality, small, the low price, the fast characteristics of temperature response.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the base.
Fig. 3 is a schematic structural view of the switch assembly fitted on the base.
Fig. 4 is a schematic structural diagram of the switch assembly.
Fig. 5 is a schematic structural view of the hydraulic expansion type power assembly.
In the figure, a base 1, a partition plate 2, an ejector rod 3, a diaphragm box 4, a diaphragm 5, a capillary tube 6, a temperature sensing bulb 7, a pressing plate 8, a self-tapping screw 9, a terminal 10, a reed 11, a movable contact 12, a fixed contact 13, a horn 14, a cavity 15, a spacer block 16, a matching hole 17, a short rivet 18, a long rivet 19, a liquid expansion type power assembly 20 and a switch assembly 21.
Detailed Description
As shown in fig. 1-5, a liquid type thermal protector with small volume and low cost comprises a base 1, wherein a liquid expansion type power assembly 20 is arranged on the surface of the base 1 through a connecting piece, a partition plate 2 is arranged in the base 1 below the liquid expansion type power assembly 20, a push rod 3 is arranged at the bottom of the partition plate 2, and switch assemblies 21 are arranged on the push rod 3 and the bottom of a machine base.
Liquid expanding power component 20 comprises diaphragm capsule 4, diaphragm 5, capillary 6 and temperature sensing bulb 7, diaphragm capsule 4 passes through the connecting piece setting on the surface of base 1, diaphragm 5 sets up in diaphragm capsule 4, temperature sensing bulb 7 sets up in diaphragm capsule 4 above diaphragm 5, the one end of capillary 6 runs through in diaphragm capsule 4 and is connected with temperature sensing bulb 7.
The connecting piece includes clamp plate 8 and self tapping screw 9, clamp plate 8 sets up the one side at the bellows 4, self tapping screw 9 runs through the bottom surface both sides of bellows 4 and lets in to base 1 surface.
The switch component 21 comprises a terminal 10, spring plates 11, a movable contact 12, a fixed contact 13 and an ox horn 14, wherein the number of the spring plates 11 and the number of the ox horn 14 are at least two, the terminal 10 is arranged at the bottom of the base 1, the spring plates 11 are arranged at two sides of a cavity 15 in the base 1, at least two spacer blocks 16 are arranged in the base 1 between the two spring plates 11, the movable contact 12 and the fixed contact 13 are respectively arranged at two sides of the top of the spring plates 11, the bottom end of the ejector rod 3 is matched in a matching hole 17 at the bottom of the base, the middle part of the ejector rod 3 is positioned between the two spacer blocks 16, the ox horn 14 is arranged on the base 1 at two sides of the middle part of the ejector rod 3, and the ox horn 14 is respectively matched and connected with the.
The number of the terminals 10 is at least four, short rivets 18 are introduced into two of the terminals 10 and two of the reeds 11 and are fixed in the base 1 through the short rivets 18, and long rivets 19 are introduced into the other two of the terminals 10 and two of the horns 14 and are fixed in the base 1 through the long rivets 19.
The utility model discloses a theory of operation does:
it is sunken state that diaphragm 5 is under the normality, the capsule 4 the inside has been filled a temperature sensing medium that coefficient of expansion is bigger, after temperature sensing bag 7 experiences the temperature, the temperature sensing medium of inside expands fast, when reaching the value of prescribing a limit to, diaphragm 5 produces quick bump, thereby jack-up ejector pin 3, push up the switch module of original switch-on, thereby the power supply cuts off, reach the purpose of protection load, after the user discovers the outage, after the troubleshooting, can artifically push down ejector pin 3 after cooling to certain temperature, diaphragm 5 sinks down again, the switch-on circular telegram again, this structure is when leaking, diaphragm 5 can bounce automatically, there is the function of automatic cutout power supply.
Claims (5)
1. The utility model provides a little volume low-cost liquid formula thermal protector, includes the base, its characterized in that, the base be provided with liquid expanding power component through the connecting piece on the surface, be located be provided with the baffle in the base of liquid expanding power component below, the bottom of baffle is provided with the ejector pin, be provided with switch module on the ejector pin and on the bottom of frame.
2. A small-volume low-cost liquid-type thermal protector according to claim 1, wherein the liquid-expansion power assembly is composed of a diaphragm casing, a diaphragm, a capillary tube and a temperature-sensing bulb, the diaphragm casing is arranged on the surface of the base through a connecting piece, the diaphragm is arranged in the diaphragm casing, the temperature-sensing bulb is arranged in the diaphragm casing above the diaphragm, and one end of the capillary tube penetrates into the diaphragm casing and is connected with the temperature-sensing bulb.
3. A small-volume, low-cost liquid thermal protector as claimed in claim 2, wherein said attachment means comprises a retaining plate disposed on one side of the capsule and self-tapping screws extending through both sides of the bottom surface of the capsule and into the base surface.
4. The small-volume low-cost liquid type thermal protector as claimed in claim 1, wherein the switch assembly comprises at least two terminals, two spring plates, at least two moving contacts, at least two fixed contacts and at least two horn, the terminals are disposed at the bottom of the base, the spring plates are disposed at two sides of a cavity in the base, at least two spacers are disposed in the base between the two spring plates, the moving contacts and the fixed contacts are disposed at two sides of the top of the spring plates respectively, the bottom end of the ejector rod is fitted in a fitting hole at the bottom of the base, the middle portion of the ejector rod is disposed between the two spacers, the horn is disposed on the base at two sides of the middle portion of the ejector rod, and the horn is coupled with the moving contacts and the fixed contacts respectively.
5. A low-volume and low-cost liquid thermal protector as claimed in claim 4, wherein said terminals are provided with at least four terminals, two of said terminals and two spring leaves are connected with short rivets and fixed in the base by the short rivets, and the other two terminals and two horn are connected with long rivets and fixed in the base by the long rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765545.6U CN210349703U (en) | 2019-10-21 | 2019-10-21 | Small-size low-cost liquid type thermal protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765545.6U CN210349703U (en) | 2019-10-21 | 2019-10-21 | Small-size low-cost liquid type thermal protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210349703U true CN210349703U (en) | 2020-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765545.6U Active CN210349703U (en) | 2019-10-21 | 2019-10-21 | Small-size low-cost liquid type thermal protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210349703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114899042A (en) * | 2022-05-31 | 2022-08-12 | 无锡市润业电器有限公司 | High accurate liquid that resets rises formula temperature controller |
-
2019
- 2019-10-21 CN CN201921765545.6U patent/CN210349703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114899042A (en) * | 2022-05-31 | 2022-08-12 | 无锡市润业电器有限公司 | High accurate liquid that resets rises formula temperature controller |
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