CN113903626B - Pressure switch with comprehensive protection function for electric motor - Google Patents
Pressure switch with comprehensive protection function for electric motor Download PDFInfo
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- CN113903626B CN113903626B CN202111156573.XA CN202111156573A CN113903626B CN 113903626 B CN113903626 B CN 113903626B CN 202111156573 A CN202111156573 A CN 202111156573A CN 113903626 B CN113903626 B CN 113903626B
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- thermal relay
- pressure
- base
- switch
- movable contact
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- 230000007246 mechanism Effects 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 230000009191 jumping Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
- H01H61/063—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts making use of a bimetallic element
Landscapes
- Thermally Actuated Switches (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The invention discloses a pressure switch with integrated protection for a motor, which comprises a bottom plate, wherein a pressure control mechanism, a thermal relay protection mechanism and a tripping mechanism are fixed on the bottom plate, the pressure control mechanism comprises a bracket with an opening at the bottom surface, a pressure regulating spring is arranged in the bracket, a connecting seat for connecting a gas tank or a water pump is arranged below the bracket, a diaphragm for sensing air pressure or water pressure is arranged in the connecting seat, the top of the connecting seat is provided with a transmission head connected to the top surface of the diaphragm, an adjusting screw rod in threaded connection with the transmission head is arranged in the bracket, an adjusting nut is integrally formed at the top end of the adjusting screw rod, a control board and a springboard are arranged at the side part of the transmission head, a torsion spring is arranged between the control board and the springboard, and the springboard is connected with the thermal relay protection mechanism. The invention has reasonable structure arrangement, stronger integrity, reduced wiring points, high installation efficiency, reduced error or falling caused by wiring, low failure rate, high applicability and good practicability.
Description
Technical Field
The invention belongs to the technical field of pressure switches, and particularly relates to a pressure switch with comprehensive protection function.
Background
All can have a pressure switch and a magnetic force protector structure in air compressor motor and protect, although it can satisfy market's demand, its electrical components is more, and customer's installation and wiring are very loaded down with trivial details to increased the degree of difficulty of installation, and also greatly increased to the requirement of product wholeness, and because the wiring point is many and loaded down with trivial details and installation, so also appear the wiring mistake easily or the condition that drops, influence the use stationarity and the security of product, so suitability and practicality are restricted.
Disclosure of Invention
The invention aims to provide a pressure switch with comprehensive protection of a power supply, which is reasonable in structural arrangement and strong in applicability.
The technical scheme for achieving the purpose of the invention is that the pressure switch with the comprehensive protection function comprises a bottom plate, wherein a pressure control mechanism, a thermal relay protection mechanism and a tripping mechanism are fixed on the bottom plate, the pressure control mechanism is connected with the thermal relay protection mechanism, the thermal relay protection mechanism is connected with the tripping mechanism, the pressure control mechanism comprises a bracket with an opening at the bottom surface, a pressure regulating spring is arranged in the bracket, a connecting seat for connecting a gas tank or a water pump is arranged below the bracket, a diaphragm for sensing air pressure or water pressure is arranged in the connecting seat, a transmission head connected to the top surface of the diaphragm is arranged at the top of the connecting seat, an adjusting screw in threaded connection with the transmission head is arranged in the bracket, an adjusting nut extending out of the top surface of the bracket is integrally formed at the top end of the adjusting screw, a control board and a spring plate are arranged at the side part of the transmission head, a torsion spring is arranged between the control board and the spring plate, the spring plate is connected with the thermal relay protection mechanism, the diaphragm is driven to move in an induction mode, and the diaphragm is driven to move by driving the spring plate to act in a reverse direction.
The thermal relay protection mechanism comprises a switch body base, a plurality of wiring screw gasket assemblies are arranged on the switch body base, a switch structure and a thermal relay structure are arranged in the switch body base, the switch structure and the thermal relay structure are electrically connected with the wiring screw gasket assemblies, the switch structure is connected with the spring board, and the thermal relay structure is connected with the spring board.
The switch structure is including setting up the movable contact bridge at switch body base middle part, the top of movable contact bridge stretches out switch body base and can rise in switch body base, the movable contact bridge with the springboard is connected, movable contact bridge internal fixation has a plurality of movable contact bridge, be fixed with the movable contact on the movable contact bridge, switch body base internal fixation has short static contact seat, be fixed with the static contact on the short static contact seat, the static contact is connected with wiring screw gasket subassembly electricity, the movable contact bridge goes up and down under the effect of springboard, drives the movable contact and is connected or breaks off with the static contact electricity.
The thermal relay structure comprises a thermal relay base and a bimetal fixing seat, wherein the thermal relay base and the bimetal fixing seat are arranged in a switch body base, a bimetal sheet is arranged on the bimetal fixing seat, a long static contact seat is fixed on the thermal relay base, the long static contact seat is electrically connected with a wiring screw gasket assembly, a conducting strip is arranged between the long static contact seat and the bimetal sheet, a push plate is further arranged on the switch body base, a slot is formed in the push plate, the end part of the bimetal sheet is clamped and fixed in the slot, the push plate is connected with the trip mechanism, the bimetal sheet deforms when in overload or overcurrent or phase failure, and drives the push plate to move in a lifting manner, and the push plate drives the trip mechanism to act.
The jump knot mechanism comprises a jump knot base, a knob shaft is arranged on the jump knot base, a stirring piece connected with the knob shaft is arranged in the jump knot base, a ratchet, a rotating block, a jump knot lever and a ratchet wheel are further arranged in the jump knot base, the jump knot lever is connected with the push plate, the side part of the ratchet is connected with a U-shaped pipe connecting piece, the bottom end of the ratchet is connected with the ratchet wheel, a connecting lug is fixed on the ratchet wheel, the connecting lug is connected with the jump knot lever, the stirring piece is connected with the U-shaped pipe connecting piece through a short U-shaped pipe, the U-shaped pipe connecting piece is connected with the middle part of the rotating block through a long U-shaped pipe, one end of the rotating block is connected on the jump knot base through a shaft rod, and the bottom end of the rotating block is propped against the top end of a movable contact bridge.
The jump buckle base is provided with a reset knob, and the reset knob is connected with the connecting lug.
The rotating block and the jump buckle base are provided with rotating block torsion springs.
The trip base is also provided with a thermal relay adjusting knob, and a lever supporting reed is arranged between the thermal relay adjusting knob and the trip lever.
The connecting seat is internally provided with a diaphragm pressing plate for pressing and positioning the diaphragm on the connecting seat.
And the bottom plate is fixedly provided with a wire clamp.
The working principle is briefly described as follows: under normal state, the static contact is in contact with the moving contact to realize conduction, when the air tank or the water pump is connected to the connecting seat, the motor operates normally, the diaphragm senses air pressure or water pressure, the air pressure or water pressure is transmitted to the control board through the transmission head, the control board moves upwards and drives the spring plate to move downwards through the torsion spring, the spring plate drives the moving contact bridge to move downwards, the moving contact bridge moves downwards to drive the moving contact bridge and the moving contact to move downwards, and the moving contact and the static contact are separated and powered off; when the pressure of the air or water sensed by the diaphragm is reduced, the air or water is transmitted to the control board through the transmission head, the control board moves downwards, the spring plate is driven to move upwards through the torsion spring, the movable contact bridge is driven to move upwards, the movable contact moves upwards to be in contact with the fixed contact for electrification, and the air or water can be kept in a certain pressure section to operate by repeating the actions; when the defects of overload, overcurrent or lack of equality occur in the operation process, the bimetallic strip deforms and bends to push the push plate to move upwards, so that a trip lever in the trip mechanism presses down a reset knob and a ratchet wheel to move, and the ratchet wheel is tripped, and under the linkage of a short U-shaped pipe, a long U-shaped pipe and a U-shaped pipe connecting piece, a rotating block forcedly rotates under the action of a rotating block torsion spring to press down a movable contact bridge to move downwards, so that the movable contact bridge drives a movable contact to be separated from a fixed contact, the power-off protection function is realized, and the protection of overload, overcurrent, lack of equality and the like is realized.
The invention has the positive effects that: the invention has reasonable structure arrangement, and the pressure control mechanism, the thermal relay protection mechanism and the trip mechanism are arranged on the same bottom plate, so that the pressure control mechanism, the thermal relay protection mechanism and the trip mechanism have stronger integrity, can reduce wiring points, not only is beneficial to improving the installation efficiency, but also can reduce the error or falling-off condition caused by wiring, thereby being beneficial to reducing the failure rate, ensuring the use stability and reliability, and has strong applicability and good practicability.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a view of another view of the present invention;
FIG. 3 is a schematic view of a pressure control mechanism according to the present invention;
FIG. 4 is a view of the cross-section A-A of FIG. 3;
FIG. 5 is a schematic diagram of a thermal relay protection mechanism according to the present invention;
FIG. 6 is a schematic view of the internal structure of the present invention;
FIG. 7 is a view of the structure of FIG. 5B-B;
FIG. 8 is a schematic structural view of a trip mechanism according to the present invention;
fig. 9 is a schematic diagram of an internal structure of the trip mechanism in the present invention.
Detailed Description
Example 1
FIGS. 1 to 9 show an embodiment of the present invention, wherein FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a view of another view of the present invention; FIG. 3 is a schematic view of a pressure control mechanism according to the present invention; FIG. 4 is a view of the cross-section A-A of FIG. 3; FIG. 5 is a schematic diagram of a thermal relay protection mechanism according to the present invention; FIG. 6 is a schematic view of the internal structure of the present invention; FIG. 7 is a view of the structure of FIG. 5B-B; FIG. 8 is a schematic structural view of a trip mechanism according to the present invention; fig. 9 is a schematic diagram of an internal structure of the trip mechanism in the present invention.
As shown in fig. 1 to 9, a pressure switch with integrated protection for a power supply includes a base plate 1, on which a wire clamp 2 is fixed in this embodiment. The method is beneficial to ensuring the stability and reliability of the connecting line.
The pressure control mechanism 3, the thermal relay protection mechanism 4 and the trip mechanism 5 are fixed on the bottom plate, as shown in fig. 1 and 2, the pressure control mechanism 3 is connected with the thermal relay protection mechanism 4, the thermal relay protection mechanism 4 is connected with the trip mechanism 5, the pressure control mechanism 3 comprises a bracket 31 with an opening at the bottom surface, in the embodiment, the bottom of the bracket is fixed on the bottom plate through a seat screw 8 and a bracket pressing plate 9, a pressure regulating spring 32 is arranged in the bracket, and a connecting seat 33 for connecting a gas tank or a water pump is arranged below the bracket;
in this embodiment, its connecting seat is aluminum material connecting seat, and the internal thread connection chamber that is used for connecting water pump or gas pitcher has been seted up to its bottom, conveniently is connected with gas pitcher and water pump, is favorable to diaphragm response atmospheric pressure or hydraulic condition.
Meanwhile, for better positioning of the membrane, a membrane pressing plate 7 for pressing and positioning the membrane on the connecting seat is arranged in the connecting seat.
Meanwhile, in order to facilitate the pressure relief operation, the connecting seat is also provided with a relief valve assembly 6.
The utility model discloses a pressure regulating device, including the support, the connecting seat, be provided with the diaphragm 34 of response atmospheric pressure or water pressure in, the top of connecting seat sets up the transmission head 35 of connection at the diaphragm top surface, be provided with in the support with transmission head threaded connection's adjusting screw 36, adjusting screw's top integrated into one piece has the adjusting nut 37 that stretches out the support top surface, adopts this structure, can be according to the condition demand of difference, rotatory adjusting screw makes the elasticity of the pressure regulating spring in the support change to realize the purpose of regulation.
A control board 310 and a springboard 38 are arranged on the side part of the transmission head, a torsion spring 39 is arranged between the control board and the springboard, and the springboard is connected with the thermal relay protection mechanism; see fig. 3-4.
In the use process, when the diaphragm senses air pressure or water pressure, the control panel is driven to move up and down, the control panel drives the springboard to move up and down reversely through the torsion spring, and the springboard drives the thermal relay protection mechanism to move.
The thermal relay protection mechanism 4 comprises a switch body base 41, and a plurality of wiring screw gasket assemblies 42 are arranged on the switch body base, in this embodiment, three groups of wiring screw gasket assemblies are arranged, and each group is two.
Switch structure 43 and thermal relay structure 44 are provided with in the switch body base, switch structure 43 and thermal relay structure 44 all are connected with wiring screw gasket subassembly 42 electricity, just switch structure is connected with the springboard, thermal relay structure is connected with the jump mechanism.
The switch structure 43 comprises a movable contact bridge 431 arranged in the middle of the switch body base, the top end of the movable contact bridge extends out of the switch body base and can be lifted in the switch body base, the movable contact bridge is connected with the springboard, a plurality of movable contact bridges 432 are fixed in the movable contact bridge, movable contacts 433 are fixed on the movable contact bridges, a short static contact seat 434 is fixed in the switch body base, a static contact 435 is fixed on the short static contact seat, the static contact is electrically connected with a wiring screw gasket assembly,
when the movable contact bridge is used, the movable contact bridge is lifted under the action of the spring plate, and the movable contact is driven to be electrically connected with or disconnected from the static contact.
The thermal relay structure 44 comprises a thermal relay base 441 and a bimetal fixing seat 442 which are arranged in the switch body base, a bimetal 443 is arranged on the bimetal fixing seat, a long static contact seat 444 is fixed on the thermal relay base, the long static contact seat is electrically connected with a wiring screw gasket assembly, a conducting strip 445 is arranged between the long static contact seat and the bimetal, a push plate 446 is also arranged on the switch body base, a slot is arranged on the push plate, the end part of the bimetal is clamped and fixed in the slot, and the push plate is connected with the trip mechanism; see fig. 5-7.
In the use process, the bimetallic strip deforms when in overload or overcurrent or phase failure, and drives the push plate to move up and down, and the push plate drives the trip mechanism to act. When the defects of overload, overcurrent or lack of equality occur in the operation process, the bimetallic strip deforms and bends to push the push plate to move upwards, so that a trip lever in the trip mechanism presses down a reset knob and a ratchet wheel to move, and the ratchet wheel is tripped, and under the linkage of a short U-shaped pipe, a long U-shaped pipe and a U-shaped pipe connecting piece, a rotating block forcedly rotates under the action of a rotating block torsion spring to press down a movable contact bridge to move downwards, so that the movable contact bridge drives a movable contact to be separated from a fixed contact, the power-off protection function is realized, and the protection of overload, overcurrent, lack of equality and the like is realized.
The trip mechanism 5 comprises a trip base 51, a knob shaft 52 is arranged on the trip base, a toggle piece 53 connected with the knob shaft is arranged in the trip base, a ratchet 54, a rotating block 55, a trip lever 56 and a ratchet 57 are also arranged in the trip base, the trip lever is connected with the push plate, the side part of the ratchet is connected with a U-shaped pipe connecting piece 58, the bottom end of the ratchet is connected with the ratchet, a connecting lug 59 is fixed on the ratchet, the reset knob 512 is arranged on the trip base 51 for conveniently resetting the connecting lug, and the reset rotation is connected with the connecting lug.
The connecting lug is connected with the jump button lever, the stirring piece with be connected through short U-shaped pipe 510 between the U-shaped pipe connecting piece, the U-shaped pipe connecting piece with the middle part of rotatory piece is connected through long U-shaped pipe 511, the one end of rotatory piece is connected on the jump button base through the axostylus axostyle, is in simultaneously rotatory piece is provided with rotatory piece torsional spring 513 with the jump button base. The bottom of the rotating block is propped against the top of the movable contact bridge.
The trip base is also provided with a thermal relay adjusting knob 514, and a lever supporting reed 515 is arranged between the thermal relay adjusting knob and the trip lever. See fig. 8 and 9.
The working principle is briefly described as follows: under normal state, the static contact is in contact with the moving contact to realize conduction, when the air tank or the water pump is connected to the connecting seat, the motor operates normally, the diaphragm senses air pressure or water pressure, the air pressure or water pressure is transmitted to the control board through the transmission head, the control board moves upwards and drives the spring plate to move downwards through the torsion spring, the spring plate drives the moving contact bridge to move downwards, the moving contact bridge moves downwards to drive the moving contact bridge and the moving contact to move downwards, and the moving contact and the static contact are separated and powered off; when the pressure of the air or water sensed by the diaphragm is reduced, the air or water is transmitted to the control board through the transmission head, the control board moves downwards, the spring plate is driven to move upwards through the torsion spring, the movable contact bridge is driven to move upwards, the movable contact moves upwards to be in contact with the fixed contact for electrification, and the air or water can be kept in a certain pressure section to operate by repeating the actions; when the defects of overload, overcurrent or lack of equality occur in the operation process, the bimetallic strip deforms and bends to push the push plate to move upwards, so that a trip lever in the trip mechanism presses down a reset knob and a ratchet wheel to move, and the ratchet wheel is tripped, and under the linkage of a short U-shaped pipe, a long U-shaped pipe and a U-shaped pipe connecting piece, a rotating block forcedly rotates under the action of a rotating block torsion spring to press down a movable contact bridge to move downwards, so that the movable contact bridge drives a movable contact to be separated from a fixed contact, the power-off protection function is realized, and the protection of overload, overcurrent, lack of equality and the like is realized.
The invention has reasonable structure arrangement, and the pressure control mechanism, the thermal relay protection mechanism and the trip mechanism are arranged on the same bottom plate, so that the pressure control mechanism, the thermal relay protection mechanism and the trip mechanism have stronger integrity, can reduce wiring points, not only is beneficial to improving the installation efficiency, but also can reduce the error or falling-off condition caused by wiring, thereby being beneficial to reducing the failure rate, ensuring the use stability and reliability, and has strong applicability and good practicability.
The standard components used in the present embodiment may be purchased directly from the market, but the nonstandard structural components according to the descriptions of the specification and the drawings may also be obtained by unambiguous processing according to the conventional technical knowledge, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that the specific description will not be made here.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.
Claims (6)
1. The utility model provides a pressure switch of electrified comprehensive protection, includes the bottom plate, be fixed with pressure control mechanism, thermal relay protection mechanism and jump knot mechanism on the bottom plate, pressure control mechanism with thermal relay protection mechanism is connected, thermal relay protection mechanism is connected its characterized in that with jumping knot mechanism: the pressure control mechanism comprises a bracket with an opening at the bottom surface, a pressure regulating spring is arranged in the bracket, a connecting seat for connecting a gas tank or a water pump is arranged below the bracket, a diaphragm for sensing air pressure or water pressure is arranged in the connecting seat, a transmission head connected to the top surface of the diaphragm is arranged at the top of the connecting seat, an adjusting screw in threaded connection with the transmission head is arranged in the bracket, an adjusting nut extending out of the top surface of the bracket is integrally formed at the top end of the adjusting screw, a control plate and a springboard are arranged at the side part of the transmission head, a torsion spring is arranged between the control plate and the springboard, the springboard is connected with the thermal relay protection mechanism, and when the diaphragm senses air pressure or water pressure, the control plate is driven to move up and down, and the control plate drives the springboard to move in a reverse lifting mode through the torsion spring, and the springboard drives the thermal relay protection mechanism to move;
the thermal relay protection mechanism comprises a switch body base, a plurality of wiring screw gasket assemblies are arranged on the switch body base, a switch structure and a thermal relay structure are arranged in the switch body base, the switch structure and the thermal relay structure are electrically connected with the wiring screw gasket assemblies, the switch structure is connected with the spring board, and the thermal relay structure is connected with the spring board;
the switch structure comprises a movable contact bridge arranged in the middle of a switch body base, the top end of the movable contact bridge extends out of the switch body base and can be lifted in the switch body base, the movable contact bridge is connected with the spring plate, a plurality of movable contact bridges are fixed in the movable contact bridge, movable contacts are fixed on the movable contact bridges, a short static contact seat is fixed in the switch body base, a static contact is fixed on the short static contact seat, the static contact is electrically connected with a wiring screw gasket assembly, and the movable contact bridge is lifted under the action of the spring plate to drive the movable contact to be electrically connected with or disconnected from the static contact;
the thermal relay structure comprises a thermal relay base and a bimetal fixing seat, wherein the thermal relay base and the bimetal fixing seat are arranged in the switch body base, a bimetallic strip is arranged on the bimetal fixing seat, a long static contact seat is fixed on the thermal relay base, the long static contact seat is electrically connected with a wiring screw gasket assembly, a conducting strip is arranged between the long static contact seat and the bimetallic strip, a push plate is further arranged on the switch body base, a slot is formed in the push plate, the end part of the bimetallic strip is clamped in the slot, the push plate is connected with the trip mechanism, and the bimetallic strip deforms when in overload or overcurrent or phase failure and drives the push plate to move in a lifting manner, and the trip mechanism is driven by the push plate to act;
the jump knot mechanism comprises a jump knot base, a knob shaft is arranged on the jump knot base, a stirring piece connected with the knob shaft is arranged in the jump knot base, a ratchet, a rotating block, a jump knot lever and a ratchet wheel are further arranged in the jump knot base, the jump knot lever is connected with the push plate, the side part of the ratchet is connected with a U-shaped pipe connecting piece, the bottom end of the ratchet is connected with the ratchet wheel, a connecting lug is fixed on the ratchet wheel, the connecting lug is connected with the jump knot lever, the stirring piece is connected with the U-shaped pipe connecting piece through a short U-shaped pipe, the U-shaped pipe connecting piece is connected with the middle part of the rotating block through a long U-shaped pipe, one end of the rotating block is connected on the jump knot base through a shaft rod, and the bottom end of the rotating block is propped against the top end of a movable contact bridge.
2. The pressure switch with integrated protection against electrical charge as set forth in claim 1, wherein: the jump buckle base is provided with a reset knob, and the reset knob is connected with the connecting lug.
3. A pressure switch with integrated protection against electrical charge as set forth in claim 2, wherein: the rotating block and the jump buckle base are provided with rotating block torsion springs.
4. A pressure switch with integrated protection against electrical charges as claimed in claim 3, wherein: the trip base is also provided with a thermal relay adjusting knob, and a lever supporting reed is arranged between the thermal relay adjusting knob and the trip lever.
5. The pressure switch with integrated protection against electrical power according to claim 4, wherein: the connecting seat is internally provided with a diaphragm pressing plate for pressing and positioning the diaphragm on the connecting seat.
6. The pressure switch with integrated protection against electrical power according to claim 5, wherein: and the bottom plate is fixedly provided with a wire clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156573.XA CN113903626B (en) | 2021-09-30 | 2021-09-30 | Pressure switch with comprehensive protection function for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156573.XA CN113903626B (en) | 2021-09-30 | 2021-09-30 | Pressure switch with comprehensive protection function for electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113903626A CN113903626A (en) | 2022-01-07 |
| CN113903626B true CN113903626B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111156573.XA Active CN113903626B (en) | 2021-09-30 | 2021-09-30 | Pressure switch with comprehensive protection function for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113903626B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202695283U (en) * | 2012-08-08 | 2013-01-23 | 林华 | Pressure switch |
| CN202905597U (en) * | 2012-11-15 | 2013-04-24 | 浙江力夫机电制造有限公司 | Pressure difference pressure switch |
| CN105470063A (en) * | 2015-12-30 | 2016-04-06 | 雷顿电气科技有限公司 | Control and protection switch |
-
2021
- 2021-09-30 CN CN202111156573.XA patent/CN113903626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202695283U (en) * | 2012-08-08 | 2013-01-23 | 林华 | Pressure switch |
| CN202905597U (en) * | 2012-11-15 | 2013-04-24 | 浙江力夫机电制造有限公司 | Pressure difference pressure switch |
| CN105470063A (en) * | 2015-12-30 | 2016-04-06 | 雷顿电气科技有限公司 | Control and protection switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113903626A (en) | 2022-01-07 |
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