CN202230952U - Heat protector for inverter air condition compressor - Google Patents
Heat protector for inverter air condition compressor Download PDFInfo
- Publication number
- CN202230952U CN202230952U CN2011203999423U CN201120399942U CN202230952U CN 202230952 U CN202230952 U CN 202230952U CN 2011203999423 U CN2011203999423 U CN 2011203999423U CN 201120399942 U CN201120399942 U CN 201120399942U CN 202230952 U CN202230952 U CN 202230952U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- compressor
- bimetal leaf
- contact chip
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a heat protector for an inverter air condition compressor, comprising a bimetallic strip, a movable contact chip, a fixed contact chip, an A connection terminal and a B connection terminal, wherein a housing is fastened on the bases of the A connection terminal and the B connection terminal. The heat protector for an inverter air condition compressor is characterized in that: the bimetallic strip is a cone-shaped top cap and is fastened on the base by a positioning disc; the movable contact chip is a V-shaped spring plate, and one end of the spring plate is in rivet joint with the movable contact point; bumps are arranged on the spring plate; the fixed contact chip is a conducting strip, and one end of the conducting strip is in rivet joint with the fixed contact point; the movable contact point and the fixed contact point are in elastically compression joint; a push rod is sleeved in a positioning hole of the positioning disc; one end of the push rod is arranged on the bump of the movable contact chip, and the other end of the push rod contacts the bimetallic strip; and the housing is sleeved on the bimetallic strip and is fastened to the base to be packaged as a whole. Compared with the prior arts, the heat protector for an inverter air condition compressor has the advantages of simple structure, small volume, convenient assembling, sensitive temperature induction, high reliability and longer service life for a compressor.
Description
Technical field
The utility model relates to the electric components technical field, and especially a kind of frequency converting air-conditioner compressor that is applicable to is used thermal protector.
Background technology
Compressor is the core position of a lot of equipment; Its cost is higher; In use owing to motor current excessive or coil temperature is too high and three-phase circuit in one contact bad or reason such as phase shortage misphase; The capital brings problem for the normal operation of compressor, gently then possibly cause whole system work undesired, and is heavy then possibly burn compressor.This just needs one even several protective device are installed, and protects the safe operation of compressor.
At present; Common air-conditioning generally all adopts fixed technology frequently, when air-conditioning is set in refrigeration or heats under the condition, when air-conditioning work to the indoor temperature of setting is above; Compressor will shut down; And when indoor temperature was lower than the design temperature certain value, compressor can restart again, and just control is the relative equilibrium that reaches temperature through frequent start-stop compressor to air-conditioning to temperature.The protector of common air-conditioning compressor is installed on the deck of compressor head, and adopts bidirectional protective overheated and overload, the i.e. operating current of the compressor protector of can flowing through; Make the temperature-sensitive element bimetal leaf heating of protector; Protector also can be responded to the heat of housing conduction simultaneously, because air-conditioning compressor when work needs frequent startup, compressor is in the abnormal work situation probably; The electric current that flow through protector this moment can increase, cause the compressor abnormal heating unusually, when the total heat of protector reaches the protection temperature of a certain setting; Protector will move, and cuts off circuit, prevents that compressor from burning.
Convertible frequency air-conditioner then is to adopt converter technique to control the work of compressor, and air-conditioning start back compressor can not shut down, but the running speed of control compressor.When air-conditioning was set at a certain working temperature, frequency converter can be according to current ambient temperature judgment task frequency and electric current, thus the running speed of control compressor; The high refrigerating capacity of frequency is big; The low refrigerating capacity of frequency is little, when room temperature more near design temperature, rotating speed is just slow more; Yet its input and output power is just more little, reaches power saving, energy-conservation, comfortable purpose.Because significant change will take place in electric current itself in the convertible frequency air-conditioner course of work; Therefore common air-conditioning can't be protected compressor through the mode of overload protection with compressor protector; Therefore all be the mode that adopts circuit control, the convertible frequency air-conditioner protector be mounted on compressor end cover that one of which is serially connected in the circuit control panel the contact; The electric current that flows through the contact is milliampere control signal electric current of level; Through the temperature of protector induced compression machine end cap,, when its surface temperature surpass set point protector action unusual when the compressor appearance, make-and-break signal is delivered to the protection that realizes in the circuit control panel compressor.
The frequency converting air-conditioner compressor of prior art adopts temperature sensor to carry out temperature detection control protection; Because the break-make that temperature sensor needs related circuit to judge comes control circuit; Complex structure, cost are higher; Exist insensitive, the poor reliability of action in response, can't play the effect of cutting off circuit, cause circuit not break off and thoroughly have an accident.
The utility model content
The purpose of the utility model is that a kind of frequency converting air-conditioner compressor that designs to the deficiency of prior art is used thermal protector; It adopts the bimetal leaf and the pusher structure of conical top cover; Make protector can sense the temperature of compressor head the soonest, the most accurately; Make the heating situation of the timely perception compressor of protector, thereby improve the reliability and the sensitivity of protector, prolong the useful life of compressor.
The purpose of the utility model is achieved in that a kind of frequency converting air-conditioner compressor uses thermal protector; Comprise snapping case on the pedestal that is provided with bimetal leaf, moving contacting plate, quiet contact chip, A splicing ear and B splicing ear; Be characterized in that bimetal leaf is the temperature-sensitive temperature-sensitive element of conical top cover shape, is fastened on the pedestal by positioning disk; Positioning disk is that an end face is provided with location notch, and the other end is provided with positioning step, and the center is provided with the circular chuck of location hole; Moving contacting plate is " V " shape shell fragment of end riveted joint moving contact, and shell fragment is provided with salient point; Quiet contact chip is the conducting strip of end riveted joint fixed contact; The A splicing ear is riveted and is fixedly installed on the pedestal by short rivet and moving contacting plate; The B splicing ear is riveted and is fixedly installed on the pedestal by long rivet and quiet contact chip; Moving contact and the crimping of fixed contact elasticity; Positioning disk is fastened on the pedestal; Suit push rod in its location hole, bimetal leaf is arranged on the location notch of positioning disk, and push rod one end is arranged on the salient point on the moving contacting plate; Its other end contacts with bimetal leaf, and case is sleeved on the bimetal leaf with the pedestal snapping and is packaged into one.
The utility model compared with prior art has simple in structure, and volume is little, and is easy to assembly, and temperature sense is sensitive, proper, and reliability is high, prolongs the useful life of compressor greatly.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model assembling sketch map;
Fig. 3 is the moving contacting plate structural representation;
Fig. 4 is the leg structural representation;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is another structural representation;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 is the another structural representation of case;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the leg structural representation of inserted sheet structure;
Figure 11 is another structural representation of leg of right-angle structure;
Figure 12 is 11 left view.
Embodiment
Consult accompanying drawing 6 ~ accompanying drawing 7, case 1 is for being provided with another example structure of earrings 18.
The utility model is such installation, use: under initial condition; Moving contact 14 is in the closure state that is in contact with one another with fixed contact 15 and forms a current path; The end cap of case 1 is mounted on the end cap of compressor, and A, B two splicing ears 11,21 are serially connected in the control circuit of convertible frequency air-conditioner.When the compressor abnormal work, case 1, the bimetal leaf 2 of the thermosensitive temperature-sensing of heat transferred below being arranged at case 1 are given in heating of the end cap of compressor and conduction; This moment, bimetal leaf 2 will bend, and kick will take place bimetal leaf 2 when the end cap temperature of compressor surpasses the temperature of setting, and promotes to be arranged on the push rod 17 of bimetal leaf 2 belows; The other end of push rod 17 just promotes moving contacting plate 10; Strain takes place and moves down in moving contacting plate 10, drives the moving contact 14 that is in contact condition and breaks off with fixed contact 15, and entire circuit is cut off; Just the signal that forms a break-make offers the control circuit of convertible frequency air-conditioner, and the guarantor who carries out compressor does.When the end cap temperature of compressor is got back to normal working temperature after fault is got rid of; Because temperature reduces heat dissipation; The kick reinstatement can take place in bimetal leaf 2; Moving contacting plate 10 is because elastic reaction is returned to initial closure state, and the moving contact 14 of this moment is closed again with fixed contact 15, and circuit turn-on also forms a make-and-break signal and passes to control circuit.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.
Claims (1)
1. a frequency converting air-conditioner compressor is used thermal protector; Comprise the last snapping case (1) of the pedestal (8) that is provided with bimetal leaf (2), moving contacting plate (10), quiet contact chip (16), A splicing ear (11) and B splicing ear (21); It is characterized in that bimetal leaf (2) is the temperature-sensitive temperature-sensitive element of conical top cover shape, be fastened on the pedestal (8) by positioning disk (4); Positioning disk (4) is that an end face is provided with location notch (3), and the other end is provided with positioning step (5), and the center is provided with the circular chuck of location hole (6); Moving contacting plate (10) is " V " shape shell fragment of end riveted joint moving contact (14), and shell fragment is provided with salient point (9); Quiet contact chip (16) is the conducting strip of end riveted joint fixed contact (15); A splicing ear (11) is riveted and is fixedly installed on the pedestal (8) by short rivet (12) and moving contacting plate (10); B splicing ear (21) is riveted and is fixedly installed on the pedestal (8) by long rivet (13) and quiet contact chip (16); Moving contact (14) and fixed contact (15) elasticity crimping; Positioning disk (4) is fastened on the pedestal (8); The interior suit push rod of its location hole (6) (17), bimetal leaf (2) are arranged on the location notch (3) of positioning disk (4), and push rod (17) one ends are arranged on the salient point (9) on the moving contacting plate (10); Its other end contacts with bimetal leaf (2), and case (1) is sleeved on that bimetal leaf (2) is gone up and pedestal (8) snapping and be packaged into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999423U CN202230952U (en) | 2011-10-20 | 2011-10-20 | Heat protector for inverter air condition compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999423U CN202230952U (en) | 2011-10-20 | 2011-10-20 | Heat protector for inverter air condition compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230952U true CN202230952U (en) | 2012-05-23 |
Family
ID=46081530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203999423U Expired - Fee Related CN202230952U (en) | 2011-10-20 | 2011-10-20 | Heat protector for inverter air condition compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891037A (en) * | 2012-09-25 | 2013-01-23 | 常熟新都安电器有限公司 | Temperature controller riveting structure |
| CN112185758A (en) * | 2019-07-01 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Protector and compressor working circuit |
-
2011
- 2011-10-20 CN CN2011203999423U patent/CN202230952U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891037A (en) * | 2012-09-25 | 2013-01-23 | 常熟新都安电器有限公司 | Temperature controller riveting structure |
| CN112185758A (en) * | 2019-07-01 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Protector and compressor working circuit |
| CN112185758B (en) * | 2019-07-01 | 2024-01-05 | 青岛海尔电冰箱有限公司 | Protector and compressor operating circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20141020 |
|
| EXPY | Termination of patent right or utility model |