CN207381347U - A kind of low-pressure plastic shell circuit breaker with temperature-detecting device - Google Patents
A kind of low-pressure plastic shell circuit breaker with temperature-detecting device Download PDFInfo
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- CN207381347U CN207381347U CN201721547560.4U CN201721547560U CN207381347U CN 207381347 U CN207381347 U CN 207381347U CN 201721547560 U CN201721547560 U CN 201721547560U CN 207381347 U CN207381347 U CN 207381347U
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- plastic shell
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Abstract
A kind of low-pressure plastic shell circuit breaker with temperature-detecting device, including pedestal, there is ribbed partition wall on the pedestal, for separating the inner space of pedestal, form at least two accommodation spaces side by side, main loop unit is provided in the accommodation space, feature, the low-pressure plastic shell circuit breaker further includes at least one temperature monitoring device, at least one insertion hole is equipped on the ribbed partition wall and close to the position of base bottom, the temperature monitoring device is respectively from the corresponding temperature for inserting in the hole to detect main loop unit on the bottom of pedestal insertion ribbed partition wall, to realize that the temperature online of breaker of plastic casing detects.The warm liter situation during breaker operation can be effectively detected, protection electric system protects users from the danger of the fire as caused by overheating circuit breaker internal, extend the service life of breaker from the excess load as caused by being more than the overcurrent of critical value.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of low-pressure plastic shell with temperature-detecting device breaks
Road device.
Background technology
User reflects breaker in use due to working overloadingly, using the line footpath and material of conducting wire, voltage
Just, use environment and the factors such as wiring is improper, the even major loop temperature that is present with rises the abnormal conditions such as higher, prolonged warm
Rise it is higher can cause declining to a great extent for the mechanical property of materials and insulation performance, it is serious that phase insulation can be caused to damage or even meeting
There is breaker scaling loss.
When breaker of plastic casing closes a floodgate, the breaker of plastic casing caused by the over-current state of the main loop unit of breaker of plastic casing
Temperature increase, and increased temperature can cause the damage of breaker of plastic casing, the pole in the case where not knowing that breaker has damaged
It is possible that it is misused.Therefore, IEC（International Electrotechnical Commission）It is required that the Wen Sheng of limitation air-break, and require plastic housing
The requirement of IEC is abided by by breaker manufacturer.But even if breaker of plastic casing meets above-mentioned requirements, in many cases, plastic housing is broken
The temperature of road device still can rise due to the abnormal heating of the major loop of breaker of plastic casing.When the heat that breaker of plastic casing generates
During more than normal requirement, breaker of plastic casing has been damaged in itself, and causes power transmission/match somebody with somebody when failing and block fault current
Breaking-up in electric line.Therefore, the temperature of major loop in breaker of plastic casing is monitored in real time, to prevent from causing due to abnormal heating
Damage be very important.A kind of method of the temperature of major loop is in monitoring breaker of plastic casing：Outside using air-break
The infrared thermal imaging camera of side intermittently takes pictures upper terminal and lower terminal to measure temperature.But existing for the method
Deficiency is：Although the external temperature of breaker of plastic casing is measurable, its internal temperature is difficult measurement.Therefore how temperature prison is installed
A kind of feasible solution can be considered as to detect the temperature of the major loop of breaker of plastic casing by surveying device.
The content of the invention
The purpose of this utility model is to provide a kind of low-pressure plastic shell circuit breaker with temperature-detecting device, by open circuit
Increase temperature monitoring device inside device to be detected come the temperature to major loop, can effectively detect the temperature during breaker operation
The situation of liter.
The purpose of this utility model is such to what is reached, a kind of low-pressure plastic shell circuit breaker with temperature-detecting device, bag
Pedestal is included, there is ribbed partition wall on the pedestal, for separating the inner space of pedestal, forms at least two receivings side by side
Space, main loop unit is provided in the accommodation space, and the low-pressure plastic shell circuit breaker further includes at least one temperature prison
Device is surveyed, at least one insertion hole, the temperature monitoring are equipped on the ribbed partition wall and close to the position of base bottom
Device is respectively from the corresponding temperature for inserting in the hole to detect main loop unit on the bottom of pedestal insertion ribbed partition wall, with reality
The temperature online detection of existing breaker of plastic casing.
In a specific embodiment of the utility model, the main loop unit is along the short transverse of pedestal from upper
Be disposed under and upper terminal, the static contact being connected with upper terminal, the moving contact coupled with static contact, pass through with moving contact it is soft
The buckle releaser for being coupled connection, the lower terminal being connected with buckle releaser,
In another specific embodiment of the utility model, the alternate ribbed partition wall between adjacent two-phase upper terminal
Insertion hole one is offered at the position of upper and close base bottom, the temperature monitoring device is fixedly inserted into insertion hole one
In.
It is alternate between the stationary contact of adjacent two-phase static contact in another specific embodiment of the utility model
Insertion hole two is offered on ribbed partition wall and at the position of base bottom, the temperature monitoring device is fixedly inserted into
It is inserted into Kong Erzhong.
In another specific embodiment of the utility model, the alternate ribbed partition wall between adjacent two-phase flexible connection
Insertion hole three is offered at the position of upper and close base bottom, the temperature monitoring device is fixedly inserted into insertion hole three
In.
In specific embodiment there are one the utility model, between the thermal element of adjacent two-phase buckle releaser
Insertion Kong Si is offered on alternate ribbed partition wall and at the position of base bottom, the temperature monitoring device is regularly inserted
Enter to insertion Kong Sizhong.
The utility model so that in a specific embodiment, alternate ribbed between adjacent two-phase lower terminal every
Insertion hole five is offered on wall and at the position of base bottom, the temperature monitoring device is fixedly inserted into insertion hole
In five.
In the utility model more and in a specific embodiment, the temperature monitoring device includes temperature survey member
Part and lead-out wire, the temperature-measuring element are inserted in the hole by insulation fixed sealing material sealing in described, and the insulation is consolidated
Closure material is heat conduction and insulation performance preferably material, which is heat conductive silica gel.
In the utility model again and then in a specific embodiment, the temperature-measuring element, which uses, becomes temperature
Change than more sensitive component, described is thermistor, thermoelectricity occasionally platinum electricity than more sensitive component to temperature change
One kind in resistance.
The utility model again more and in a specific embodiment, the lead-out wire is led using high-temperature-resistant flexible
Body, the high-temperature-resistant flexible conductor are Teflon fire resistant electric wire.
The utility model with the above structure, compared with prior art, has an advantageous effect in that：First, by
The temperature monitoring device that circuit breaker internal is added to carry out on-line checking to the temperature of major loop, can effectively detect breaker fortune
Warm liter situation between the departure date, damage caused by so as to prevent the abnormal heating of the main loop unit by forming main loop circuit, with
And avoid the fault current as caused by the faulty operation of air-break；Secondly, user can be approved in response to the current of load
Reference temperature is set on the basis of temperature and detects the state of breaker exactly at any time, therefore, breaker can protect electric power
System protects users from fiery as caused by overheating circuit breaker internal from the excess load as caused by being more than the overcurrent of critical value
The danger of calamity, and extend by the stability of system the service life of breaker.
Description of the drawings
Fig. 1 shows that breaker assembles stereoscopic schematic diagram in the utility model.
Fig. 2 shows breaker internal structure schematic diagram in the utility model.
Fig. 3 shows breaker internal structure sectional view in the utility model.
Fig. 4 shows base bottom schematic diagram in the utility model.
Fig. 5 shows to be inserted into the structure diagram of temperature monitoring device in the utility model in pedestal.
Fig. 6 shows the structure diagram of temperature monitoring device in the utility model.
In figure：1. main casing, 11. pedestals, 111. ribbed partition walls, 1111. insertion holes, 1111a. insertions hole one, 1111b.
It is inserted into hole two, 1111c. insertions hole three, 1111d. insertion Kong Si, 1111e. insertions hole five, 12. lid；2. main loop unit, 21.
Moving contact, 211. movable contacts, 22. static contacts, 221. stationary contacts, 23. buckle releasers, 231. thermal elements, 24. upper terminals, 25. lower ends
Son, 26. flexible connections；3. temperature-detecting device, 31. detector units, 32. lead-out wires；4. operating mechanism.
Specific embodiment
In order to which the public is enable to be fully understood by the technical essence of the utility model and advantageous effect, applicant will combine below
Specific embodiment of the present utility model is described in detail in attached drawing, but applicant is not to technical solution to the description of embodiment
Limitation, it is any that the protection model that should be all considered as the utility model is changed in the form rather than substance according to the utility model design
It encloses.
The concept of every directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description
On the basis of position shown in FIG. 1, thus it cannot be understood as to the special of technical solution provided by the utility model
It limits.
~Fig. 6 is please referred to Fig.1, it is described the utility model is related to a kind of breaker of plastic casing with temperature monitoring device
Breaker of plastic casing includes main casing 1, and the main casing 1 is made of the lid 12 of pedestal 11 and covering on the base 11, main casing 1
It can be made of insulating materials such as plastics.Fig. 4 is related to pedestal 11, and main casing 1 is formed as in the location of each phase tool
There is inner space.Ribbed partition wall 111 is formed on the pedestal 11, the ribbed partition wall 111 is used to separate the interior of pedestal
Portion space forms at least two accommodation spaces side by side, is being electrically isolated from each other the adjacent two-phase of breaker, in pedestal 11
Each phase inside be both provided with a contact system and buckle releaser 23, each contact system includes the moving contact to cooperate
21 and a static contact 22, since the present embodiment is a kind of two pole breaker of plastic casing, thus foregoing contact system also has two, moves
Contact 21 and static contact 22 also should mutually have two, and two static contacts 22 are fixedly mounted on the base 11, and two static contacts
22 are placed in the same end of pedestal 11, and two static contacts 22 as shown in Figure 3 are placed in the upper end of pedestal 11 in this embodiment, and foregoing is dynamic
Contact 21 is corresponding with static contact 22, and two moving contacts 21 are respectively arranged on operating mechanism 4, and operating mechanism 4 is mounted on pedestal
On 11, foregoing buckle releaser 23 is connected with moving contact 21, is placed in the same end of pedestal 11, two as shown in Figure 3 in this embodiment
Buckle releaser 23 is placed in the lower end of pedestal 11.Certainly, when breaker of plastic casing is three pole breaker of plastic casing or quadrupole breaker of plastic casing,
Static contact 22 and the quantity of moving contact 21 and buckle releaser 23 are also accordingly three or four.
As shown in figure 3, it is provided with main loop unit 2 in the accommodation space of each phase of two-phase breaker of plastic casing.It is described
Main loop unit 2 may include the moving contact 21 with movable contact 211 and the static contact 22 with stationary contact 221 and with hot member
The buckle releaser 23 of part 231.The main loop unit 2 is disposed with upper terminal from top to bottom along the short transverse of pedestal 11
24th, the static contact 22 that is connected with upper terminal 24, the moving contact 21 coupled with static contact 22 are connected with moving contact 21 by flexible connection 26
The buckle releaser 23 connect, the lower terminal 25 being connected with buckle releaser 23, to form main loop circuit.4 operable major loop of operating mechanism
The moving contact 21 of unit 2 and the cut-off/close of static contact 22.
As shown in figure 5, temperature monitoring device 3 may be provided in breaker of plastic casing, for measuring the temperature of main loop unit 2
Degree.Because being difficult to the temperature of directly measurement main loop unit 2, but measurable neighbouring temperature extrapolates main loop unit 2
Temperature.Relation between temperature that can be based on main loop unit 2 and the temperature being mounted at temperature monitoring device 3 obtains experiment number
According to.Therefore, based on experimental data, the temperature at 3 position of temperature monitoring device can be used to extrapolate the temperature of main loop unit 2
Degree.As above-mentioned, when each pedestal 11 is when every phase has inner space, if temperature monitoring device 3 is arranged on the inside
Space then cannot accurately measure temperature due to the circulation air in inner space.Therefore, as shown in figure 5, the temperature prison
Surveying the quantity of device 3 has multiple, five is illustrated in figure, on the ribbed partition wall 111 and close to the position of 11 bottom of pedestal
Place is respectively separated from top to bottom along short transverse to be opened up there are five insertion hole 1111, and five temperature monitoring device 3 are respectively from pedestal
11 bottom is fixedly inserted on ribbed partition wall 111 in corresponding insertion hole 1111, to detect the temperature of main loop unit 2.
The insertion hole 1111 can form enough depths to measure the temperature of circuit breaker internal.Specifically, five insertion holes 1111 are distinguished
It is from top to bottom insertion one 1111a of hole, insertion two 1111b of hole, insertion three 1111c of hole, insertion four 1111d of hole, insertion Kong Si
1111e, wherein, insertion one 1111a of hole is opened on the alternate ribbed partition wall 111 between adjacent two-phase upper terminal 24（It is empty in Fig. 3
Line is illustrated）；Insertion two 1111b of hole is opened on the alternate ribbed partition wall 111 between the stationary contact 221 of adjacent two-phase static contact 22
（Dotted line is illustrated in Fig. 3）；Insertion three 1111c of hole is opened on the alternate ribbed partition wall 111 between adjacent two-phase flexible connection 26（Figure
Dotted line is illustrated in 3）；Insertion four 1111d of hole is opened in the alternate ribbed partition wall between the thermal element 231 of adjacent two-phase buckle releaser 23
On 111（Dotted line is illustrated in Fig. 3）；Insertion five 1111e of hole is opened in the alternate ribbed partition wall 111 between adjacent two-phase lower terminal 25
On（Dotted line is illustrated in Fig. 3）, during the temperature of certainly specific measurement main loop unit 2, may be selected one of them, two or more positions
Temperature monitoring device 3 is inserted into the insertion hole 1111 put.
As shown in fig. 6, the temperature monitoring device 3 may include the temperature-measuring element 31 for measuring temperature and from temperature
Spend the lead-out wire 32 that measuring cell 31 extends, wherein temperature-measuring element 31 using to temperature change than more sensitive component,
Such as thermistor, thermocouple and platinum resistance, it is preferred that the temperature-measuring element 31 is by insulation fixed sealing material sealing
In the insertion hole 1111 at the alternate ribbed partition wall 111 in 11 bottom of pedestal.The fixed sealing material that wherein insulate is heat conduction and insulation performance
Preferably material, such as heat conductive silica gel.High-temperature-resistant flexible conductor can be used in the lead-out wire 32, such as Teflon high temperature resistant electricity
Line.The lead-out wire 32 outputs signal to control circuit.It is inserted into hole 1111, draws when temperature-measuring element 31 is inserted into
Line 32 is electrically connected to control circuit, and the temperature of measurement can be further output to external leading-out terminal, thus, it is possible to from breaker
Location and the internal temperature for monitoring breaker in real time at a distance can be implemented the temperature of breaker main loop unit 2 effective
Monitoring.
Claims (10)
1. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device including pedestal (11), has rib on the pedestal (11)
Shape partition wall (111) for separating the inner space of pedestal (11), forms at least two accommodation spaces side by side, described to accommodate sky
It is interior to be provided with main loop unit (2), which is characterized in that the low-pressure plastic shell circuit breaker further includes at least one temperature monitoring
Device (3) is equipped at least one insertion hole on the ribbed partition wall (111) and close to the position of pedestal (11) bottom
(1111), the temperature monitoring device (3) is corresponding from the bottom of pedestal (11) insertion ribbed partition wall (111) respectively inserts
Enter in hole (1111) to detect the temperature of main loop unit (2), to realize that the temperature online of breaker of plastic casing detects.
2. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 1, it is characterised in that described
The short transverse of main loop unit (2) along pedestal (11) is disposed with upper terminal (24), connects with upper terminal (24) from top to bottom
The static contact (22) that connects is connected with the moving contact (21) of static contact (22) coupling, with moving contact (21) by flexible connection (26)
Buckle releaser (23), the lower terminal (25) being connected with buckle releaser (23).
3. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 2, it is characterised in that adjacent
Insertion hole is offered on alternate ribbed partition wall (111) between two-phase upper terminal (24) and at the position of pedestal (11) bottom
One (1111a), the temperature monitoring device (3) are fixedly inserted into insertion hole one (1111a).
4. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 2, it is characterised in that adjacent
On alternate ribbed partition wall (111) between the stationary contact (221) of two-phase static contact (22) and close to the position of pedestal (11) bottom
Place offers insertion hole two (1111b), and the temperature monitoring device (3) is fixedly inserted into insertion hole two (1111b).
5. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 2, it is characterised in that adjacent
Insertion hole is offered on alternate ribbed partition wall (111) between two-phase flexible connection (26) and at the position of pedestal (11) bottom
Three (1111c), the temperature monitoring device (3) are fixedly inserted into insertion hole three (1111c).
6. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 2, it is characterised in that adjacent
On alternate ribbed partition wall (111) between the thermal element (231) of two-phase buckle releaser (23) and close to the position of pedestal (11) bottom
Place offers insertion Kong Si (1111d), and the temperature monitoring device (3) is fixedly inserted into insertion Kong Si (1111d).
7. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 2, it is characterised in that adjacent
Insertion hole is offered on alternate ribbed partition wall (111) between two-phase lower terminal (25) and at the position of pedestal (11) bottom
Five (1111e), the temperature monitoring device (3) are fixedly inserted into insertion hole five (1111e).
8. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 1 or 2, it is characterised in that described
Temperature monitoring device (3) include temperature-measuring element (31) and lead-out wire (32), the temperature-measuring element (31) is by exhausted
Edge fixed sealing material sealing in the insertion hole (1111), the insulation fixed sealing material for heat conduction and insulation performance preferably
Material, the material are heat conductive silica gel.
9. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 8, it is characterised in that described
Temperature-measuring element (31) using to temperature change than more sensitive component, it is described to temperature change than more sensitive first device
Part is thermistor, one kind in thermoelectricity occasionally platinum resistance.
10. a kind of low-pressure plastic shell circuit breaker with temperature-detecting device according to claim 8, it is characterised in that described
Lead-out wire (32) uses high-temperature-resistant flexible conductor, and the high-temperature-resistant flexible conductor is Teflon fire resistant electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547560.4U CN207381347U (en) | 2017-11-18 | 2017-11-18 | A kind of low-pressure plastic shell circuit breaker with temperature-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547560.4U CN207381347U (en) | 2017-11-18 | 2017-11-18 | A kind of low-pressure plastic shell circuit breaker with temperature-detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN207381347U true CN207381347U (en) | 2018-05-18 |
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|---|---|---|---|
| CN201721547560.4U Active CN207381347U (en) | 2017-11-18 | 2017-11-18 | A kind of low-pressure plastic shell circuit breaker with temperature-detecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354607A (en) * | 2018-12-24 | 2020-06-30 | 上海良信电器股份有限公司 | Circuit breaker temperature acquisition device |
-
2017
- 2017-11-18 CN CN201721547560.4U patent/CN207381347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354607A (en) * | 2018-12-24 | 2020-06-30 | 上海良信电器股份有限公司 | Circuit breaker temperature acquisition device |
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