CN201570439U - Vibration resistance pointer type SF6 gas density relay - Google Patents
Vibration resistance pointer type SF6 gas density relay Download PDFInfo
- Publication number
- CN201570439U CN201570439U CN2009200754554U CN200920075455U CN201570439U CN 201570439 U CN201570439 U CN 201570439U CN 2009200754554 U CN2009200754554 U CN 2009200754554U CN 200920075455 U CN200920075455 U CN 200920075455U CN 201570439 U CN201570439 U CN 201570439U
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- China
- Prior art keywords
- movement
- gas density
- density relay
- hairspring
- pointer type
- Prior art date
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Abstract
The utility model relates to a vibration resistance pointer type SF6 gas density relay, which mainly comprises a shell, a machine core, a C-shaped pipe, a temperature compensation component and a pointer which are arranged in the shell. The vibration resistance pointer type SF6 gas density relay has the characteristics that the machine core is provided with a machine core hairspring limit part. The vibration resistance pointer type SF6 gas density relay can be not filled with silicone oil, completely overcomes the problem of oil leak, has the advantages of being not afraid of vibration, and can be excellently applied on SF6 electrical equipment.
Description
Technical field
The utility model relates to a kind of relay, relates in particular to a kind of SF of being applied in
6Vibration pointer type SF on (sulphur hexafluoride) electric equipment
6Gas density relay.
Background technology
SF
6Electric product has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.
SF
6The arc-extinguishing medium of electric product and dielectric are SF
6Gas can not leak gas.If leak gas, just can not guarantee SF
6The reliable and secure operation of electric product.So monitoring SF
6The SF of electric product
6Density value is very necessary.
Generally adopt at present a kind of pointer SF of machinery
6Gas density relay is monitored SF
6Density is promptly worked as SF
6This relay can be reported to the police and locking when gas leakage took place electric product, can also show on-the-spot density value simultaneously.
This density monitor generally adopts single temperature compensating element and hairspring type electric contact, help formula suction though increased magnetic, the reliable closure of docking point is helpful, but the difference of density value when also causing actual act and pointer show value, in addition when density is higher than set point, its movable contact is to move along with pointer, because the power of hairspring is very little, make magnetic help formula suction can not transfer too greatly, in case when density value had arrived setting operating value (report to the police or locking), signalling contact (reporting to the police or locking) had moved, if pointer in its vicinity at this moment, can produce vibration, signal is disconnected again, send misoperation.In addition, when contact (reporting to the police or locking) was closed, its closing force only depends on the small power of the hairspring of contact, helps formula power even add magnetic, and was also still very little, therefore extremely was afraid of to shake.In order to improve its vibration resistance, generally all be filled with silicone oil, but because on making, ubiquity leakage of oil problem.In case leakage of oil, the user has only replacing again, causes economic loss.
So, develop a kind of do not need oil-filled, but the good pointer SF of its performance
6Gas density relay is very important.
A kind of contact of developing now adopts the no oil type SF of sensitive switch
6Gas density relay, this SF
6The structure of gas density relay as shown in Figure 1 and Figure 2, it comprises SF6 gas connection 1, movement 2, housing 3, dial 4, pointer 5, Bourdon tube 6, temperature compensating element 7, junction block 8, sensitive switch 91,92,93, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, adjusting rod 141,142,143, connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, pedestal 19 and SF
6Air shooter 20.Wherein, SF
6Gas connection 1, junction block 8, watch crystal 17, cover circle 18 and pedestal 19 are separately fixed on the housing 3.Movement 2 and fixed head 12 are installed in respectively on the pedestal 19, and pointer 5 and dial 4 are separately fixed on the movement 2.One end of Bourdon tube 6 is welded on the pedestal 19 and is communicated with it, the other end is connected with an end of temperature compensating element 7 by the end seat, the other end of temperature compensating element 7 is connected with crossbeam 16, one end of crossbeam 16 is connected with an end of connecting rod 15, and the other end of connecting rod 15 is connected with movement 2.Be fixed with adjusting rod 141,142,143 on the crossbeam 16.Sensitive switch 91,92,93 is welded on respectively on the printed circuit board 10, and printed circuit board 10 is installed on the fixed head 12, and fixed head 12 is installed in again on the pedestal 19.Sensitive switch 91 is fixed on the below of adjusting rod 141, and sensitive switch 92 is fixed on the below of adjusting rod 142, and sensitive switch 93 is fixed on the below of adjusting rod 143.Be respectively equipped with motion arm 911,921,931 on each sensitive switch.Location-plate 11 is fixed on the movement 2; its front end extends to the below of the end seat of the end that Bourdon tube 6 links to each other with temperature compensating element 7; its function is: when the SF6 gas density drops to certain value; spacing Bourdon tube 6 moves down; the protection sensitive switch; and then protection crossbeam 16 do not damaged by pressure and is out of shape, and makes whole system keep reliably working.
The contact of sensitive switch by electric wire 13, is connected on the junction block 8 from printed circuit board 10, and junction block 8 is fixed on the watchcase 3.Watch crystal 17, cover circle 18 are separately fixed on the watchcase 3, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater are invaded.SF
6One end of air shooter 20 is connected with pedestal 19, and positiver sealing, SF
6The other end of air shooter 20 is connected with joint 1, and positiver sealing.
Above-mentioned SF
6Though the sensitive switch that gas density relay adopted has certain advantage,, in use still there is following problem because its structure is unreasonable:
1, because this SF
6When gas density relay is subjected to judder in transit, can cause the movement hairspring to get muddled, cause indication inaccurate, even occur blocking, cause the output of malfunction signal or thoroughly can not work, can not guarantee system's reliably working.
2, because this SF
6Gas density relay is when the judder of switch breaking-closing operating, and the beat of pointer is big, can cause the movement hairspring to get muddled, and causes indication inaccurate, even occurs blocking, and causes the output of malfunction signal or thoroughly can not work, and can not guarantee system's reliably working.
In sum, be necessary to develop and a kind ofly do not want oil-filled and the good pointer SF of resistance to shock
6Gas density relay is to guarantee system's reliably working.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of oil-filled, good vibration pointer type SF of resistance to shock that do not need
6Gas density relay is used for control and monitors airtight container SF
6The density of gas, and at SF
6The gas leakage situation that occurs in the electric equipment is in time sent alarm signal and block signal, for ensureing that electric power safety plays effect.
A kind of vibration pointer type SF provided by the utility model
6Gas density relay comprises SF
6The gas density relay housing, be arranged on movement, C shape pipe, temperature compensating element, pointer in this housing, described movement has movement hairspring locating part.
Described vibration pointer type SF
6Gas density relay, described movement hairspring locating part is fixed in the rotating shaft of movement.
Described vibration pointer type SF
6Gas density relay, described movement have the action contact of the density monitor of movement hairspring locating part and are made up of several sensitive switches.
Described vibration pointer type SF
6The action contact that gas density relay, described movement have the density monitor of movement hairspring locating part helps the formula electric contact to form by magnetic.
Described vibration pointer type SF
6Gas density relay, described temperature compensating element are bimetallic material or the airtight SF that is filled with
6The C shape pipe of gas.
Described vibration pointer type SF
6Gas density relay, described density monitor comprise that also one is located at the chassis of housing bottom, and be fixedly connected by several vibration isolators between this chassis and the housing.
The utility model vibration pointer type SF
6Gas density relay makes it compared with prior art owing to adopted above technical scheme, has following tangible advantage and characteristics:
Owing to adopted the movement that has movement hairspring limited part, in transit, when the switch divide-shut brake produces vibration because the position-limiting action of movement hairspring locating part has been arranged, just can prevent that hairspring from too swinging, can not make the hairspring phenomenon that gets muddled, guarantee system's reliably working.
Description of drawings
Below, the utility model is described in further detail in conjunction with the accompanying drawings:
Fig. 1 is prior art pointer-type SF
6The structural representation of gas density relay;
Fig. 2 is the partial side view of structure shown in Figure 1;
Fig. 3 is the utility model vibration pointer type SF
6The structural representation of gas density relay;
Fig. 4 be structure shown in Figure 3 movement and partial side view.
Embodiment
The action contact of present embodiment is an example with the sensitive switch type.
Referring to Fig. 3～5, the utility model vibration pointer type SF
6Gas density relay mainly is made up of joint 1, movement 2, watchcase 3, dial 4, pointer 5, Bourdon tube 6, temperature compensating element 7, junction block 8, three sensitive switches 91,92,93, printed circuit board 10, location-plate 11, fixed head 12, electric wire 13, three adjusting rods 141,142,143, connecting rod 15, crossbeam 16, watch crystal 17, cover circle 18, pedestal 19, deferent 20, sensitive switch reinforcing mechanisms 23, end seat 24 etc.Wherein, movement 2 has movement locating part 2A, and the movement hairspring is 2D, and movement hairspring locating part 2A is fixed on the rotating shaft 2B of movement 2.Joint 1 is fixed on the watchcase 3, and movement 2 is fixed on the pedestal 19.One end of Bourdon tube 6 is welded on the pedestal 19 and is communicated with it, and the other end is connected with an end of temperature compensating element 7 by end seat 24, and the other end of temperature compensating element 7 is connected with crossbeam 16.Be fixed with three adjusting rods 141,142,143 on the crossbeam 16.Crossbeam 16 is connected with connecting rod 15 again, and connecting rod 15 is connected with movement 2 again.Three sensitive switches 91,92,93 are separately fixed on the printed circuit board 10, printed circuit board 10 is fixed on the fixed head 12, fixed head 12 is installed in again on the pedestal 19, and three sensitive switch 91,92,93 correspondences are arranged on the top of each adjusting rod 141,142,143, wherein, sensitive switch 91 is fixed on the top of adjusting rod 141, sensitive switch 92 is fixed on the top of adjusting rod 142, sensitive switch 93 is fixed on the top of adjusting rod 143, and each sensitive switch lower end is connected with motion arm 911 ', 921 ', 931 ' respectively.Location-plate 11 is fixed on the movement 2, and pointer 5 and dial 4 are separately fixed on the movement 2.The contact of sensitive switch by electric wire 13, is connected on the junction block 8 from printed circuit board 10, and junction block 8 is fixed on the watchcase 3.Watch crystal 17, cover circle 18 are separately fixed on the watchcase 3, can protect its internal mechanism to avoid mechanical damage and dirt, rainwater are invaded.One end of deferent 20 is connected with pedestal 19, and positiver sealing; The other end of deferent 20 is connected with joint 1, and positiver sealing.One end of baffle plate 21 is fixed on the pedestal 19 (or movement or support or housing), and the other end extends upward the end of retaining at crossbeam 16, but and leave the gap between the crossbeam 16;
The rotating shaft 2B that the hairspring locating part 2A of movement is fixed on movement goes up (its fixed form can be diversified, as be fixed on the movement clamping plate), and present embodiment movement hairspring locating part 2A is circular.Its form is unrestricted, can variation.
As shown in Figure 4, the movement hairspring locating part 2A of described movement is fixed on the rotating shaft 2B of movement 2, the end concatenation pointer of the rotating shaft 2C of movement 2 wherein, because the position-limiting action of movement hairspring locating part 2A has been arranged, just can prevent that hairspring 2D from too swinging, the disorderly phenomenon of hairspring in transit, in use can not take place, and guarantees system's reliably working.
The utility model vibration pointer type SF
6The action principle of gas density relay is based on flexible member Bourdon tube 6, utilizes the pressure and temperature of 7 pairs of variations of temperature compensating element to revise, reaction SF
6The variation of gas density.Promptly at measured medium SF
6Under the pressure effect of gas, because the effect of temperature compensating element 7 has been arranged, the variation of its density value, force value also changes accordingly, force the end of Bourdon tube 6 to produce corresponding strain-displacement,, pass to movement 2 by means of temperature compensating element 7 and connecting rod 15, movement 2 passes to pointer 5 again, satisfies tested SF
6The gas density value indicates on dial 4.If leaked gas, its density value drops to a certain degree (reach and report to the police or the locking value), Bourdon tube 6 produces accordingly to bottom offset, by temperature compensating element 7, make crossbeam 16 to bottom offset, the adjusting rod 141,142,143 on the crossbeam 16 is just gradually from corresponding sensitive switch 91,92,93, when arriving to a certain degree, corresponding sensitive switch 91,92,93 contacts are just connected, and send corresponding signal (reporting to the police or locking), reach the SF in the equipment such as supervision and control electric switch
6Gas density makes the electric equipment trouble free service.If its density value has raise, force value also raises accordingly, be elevated to a certain degree, Bourdon tube 6 also produces accordingly to top offset, by temperature compensating element 7, makes crossbeam 16 to top offset, adjusting rod 141,142,143 on the crossbeam 16 is just to top offset, just promote corresponding sensitive switch 91,92,93, its contact just disconnects, and signal (reporting to the police or locking) is just removed.
In sum, vibration pointer type SF of the present utility model
6Gas density relay is owing to adopted the movement that has movement hairspring locating part 2A, when the switch divide-shut brake produces vibration, because the position-limiting action of movement hairspring locating part has been arranged, just can prevent that hairspring from too swinging, the disorderly phenomenon of hairspring can not take place, it is inaccurate indication can not occur, stuck phenomenon can not take place, and guarantees system's reliably working.So just improved this pointer SF greatly
6The resistance to shock of gas density relay and precision property are a kind of genuine vibration resistance pointer-type SF
6Gas density relay.Have the advantage of not being afraid of vibration, can not fill silicone oil, overcome the leakage of oil problem fully, can be applied in SF well
6On the electric equipment.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.Form as damping mechanism can be versatile and flexible.
Claims (6)
1. vibration pointer type SF
6Gas density relay comprises SF
6The gas density relay housing, be arranged on movement, C shape pipe, temperature compensating element, pointer in this housing, described movement comprises hairspring, sector shaft and rotating shaft, it is characterized in that: described movement has movement hairspring locating part.
2. vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described movement hairspring locating part is fixed in the rotating shaft of movement.
3. vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described movement has the action contact of the density monitor of movement hairspring locating part and is made up of several sensitive switches.
4. vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: the action contact that described movement has the density monitor of movement hairspring locating part helps the formula electric contact to form by magnetic.
5. vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described temperature compensating element is bimetallic material or the airtight SF of being filled with
6The C shape pipe of gas.
6. vibration pointer type SF as claimed in claim 1
6Gas density relay is characterized in that: described density monitor comprises that also one is located at the chassis of housing bottom, and is fixedly connected by several vibration isolators between this chassis and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200754554U CN201570439U (en) | 2009-07-29 | 2009-07-29 | Vibration resistance pointer type SF6 gas density relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200754554U CN201570439U (en) | 2009-07-29 | 2009-07-29 | Vibration resistance pointer type SF6 gas density relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570439U true CN201570439U (en) | 2010-09-01 |
Family
ID=42662739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200754554U Expired - Fee Related CN201570439U (en) | 2009-07-29 | 2009-07-29 | Vibration resistance pointer type SF6 gas density relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216107A (en) * | 2018-09-28 | 2019-01-15 | 上海乐研电气有限公司 | A kind of high-precision SF6Gas density relay and its implementation |
| CN109243914A (en) * | 2018-09-28 | 2019-01-18 | 上海乐研电气有限公司 | A kind of method and high-precision gas density monitor improving gas density relay precision |
-
2009
- 2009-07-29 CN CN2009200754554U patent/CN201570439U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216107A (en) * | 2018-09-28 | 2019-01-15 | 上海乐研电气有限公司 | A kind of high-precision SF6Gas density relay and its implementation |
| CN109243914A (en) * | 2018-09-28 | 2019-01-18 | 上海乐研电气有限公司 | A kind of method and high-precision gas density monitor improving gas density relay precision |
| WO2020063606A1 (en) * | 2018-09-28 | 2020-04-02 | 上海乐研电气有限公司 | High-precision sf6 gas density relay and method for implementing same |
| CN109243914B (en) * | 2018-09-28 | 2024-03-29 | 上海乐研电气有限公司 | Method for improving accuracy of gas density relay and gas density relay |
| CN109216107B (en) * | 2018-09-28 | 2024-03-29 | 上海乐研电气有限公司 | High-precision SF (sulfur hexafluoride) 6 Gas density relay and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170103 Address after: 201802 Shanghai City, Jiading District Nanxiang Town, Yun North Road 1755 Lane 21, B zone four Patentee after: Shanghai joy Electric Co., Ltd. Address before: 200237 Minhang District Lotus Road, Lane 155, room 32, No. 1102, room Patentee before: Shanghai Roye Electronic Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20180729 |