CN207939756U - A kind of electric heating system - Google Patents
A kind of electric heating system Download PDFInfo
- Publication number
- CN207939756U CN207939756U CN201721929808.3U CN201721929808U CN207939756U CN 207939756 U CN207939756 U CN 207939756U CN 201721929808 U CN201721929808 U CN 201721929808U CN 207939756 U CN207939756 U CN 207939756U
- Authority
- CN
- China
- Prior art keywords
- contactor
- electric heater
- circuit breaker
- miniature circuit
- mcb1
- 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 provides a kind of electric heating system, including at least one set of electric heater and the concatenated A.C. contactor of the electric heater, miniature circuit breaker, the electric heater passes sequentially through the A.C. contactor, miniature circuit breaker is connected with power supply, the control circuit of the miniature circuit breaker is connected with excitation buckle releaser, and the excitation buckle releaser passes sequentially through the normally opened contact of A.C. contactor, the normally closed switch of intermediate relay is connected with power supply.The utility model connects excitation buckle releaser in the control circuit of miniature circuit breaker, and when systems are functioning properly, intermediate relay is attracted, to which A.C. contactor is normally attracted, electric heater normal heating；When system stops or in the event of failure, intermediate relay disconnects, if there is A.C. contactor be in attracting state at this time, excitation buckle releaser obtains electric, controls miniature circuit breaker by force and disconnects and controls electric heater and no longer heated.
Description
Technical field
The utility model is related to a kind of heating technique, especially a kind of electric heating system.
Background technology
Electric heater surface temperature is very high at work for electric heating system, needs timely ventilation and heat can be only achieved and adds
Thermal effect, if traditional electric heating system aeration radiation system breaks down, electric heater still will continue to heat, such pole
It is easy to happen fire.Good additionally, due to electric heater heating properties, load current is excessive, the A.C. contactor in electric heating system
It will appear great phenomenon of arc discharge in actuation/disconnection, being easy, which makes contact melt, sticks together, and leads to the contact of A.C. contactor
It can not separate, accordingly even when the control coil dead electricity of A.C. contactor, electric heating system can also heat always, lead to security risk
It is very big.
Therefore, a kind of electric heating system having a safety feature of active demand.
Invention content
In view of the deficiencies of the prior art, the utility model technical issues that need to address are to provide a kind of electric heating system,
Has security control defencive function.
In order to solve the above technical problems, the utility model provides a kind of electric heating system comprising at least one set of electrical heating
Device and the concatenated A.C. contactor of the electric heater, miniature circuit breaker (MCB1), the electric heater pass sequentially through the exchange
Contactor, miniature circuit breaker (MCB1) are connected with power supply, and the control circuit of the miniature circuit breaker (MCB1) is connected with excitation and takes off
Device (TK1) is detained, the excitation buckle releaser (TK1) passes sequentially through the normally opened contact of A.C. contactor, system operation intermediate relay
(R1) normally closed switch (R1-1) is connected with power supply.
As a kind of improvement of electric heating system of the utility model, the electric heater includes two groups or more phase
Mutually electric heater in parallel, each electric heater are in series with A.C. contactor, and each group electric heater passes through the miniature open circuit
Device (MCB1) is connected with the power supply, and the normally opened contact of each A.C. contactor is connected in parallel.
As a kind of improvement of electric heating system of the utility model, the electric heater includes first be connected in parallel with each other
Electric heater, the second electric heater, third electric heater；The A.C. contactor includes one end and the first electric heater phase
The first A.C. contactor (M1), one end and second electric heater that even the other end is connected with the miniature circuit breaker (MCB1)
The second A.C. contactor (M2), one end and the third electrical heating that the other end that is connected is connected with the miniature circuit breaker (MCB1)
The third A.C. contactor (M3) that the connected other end of device is connected with the miniature circuit breaker (MCB1)；First A.C. contactor
(M1) normally opened contact (M2-1) of normally opened contact (M1-1), the second A.C. contactor (M2), third A.C. contactor (M3)
Normally opened contact (M3-1) is connected to the excitation buckle releaser (TK1) and the system operation intermediate relay after being connected in parallel with each other
Normally closed switch (R1-1) between.
As a kind of improvement of electric heating system of the utility model, the miniature circuit breaker (MCB1) passes through miniature circuit breaker
(MCCB) it is connected afterwards with power supply.
As a kind of improvement of electric heating system of the utility model, the normally closed switch of the system operation intermediate relay
(R1-1) it is connected afterwards with power supply by miniature circuit breaker (MCB2).
As a kind of improvement of electric heating system of the utility model, the miniature circuit breaker (MCB2) passes through miniature circuit breaker
(MCCB) it is connected afterwards with power supply.
Compared with prior art, miniature circuit breaker (MCB1) of a kind of electric heating system of the utility model in heater circuit
Control circuit on connection excitation buckle releaser (TK1), the excitation buckle releaser (TK1) pass sequentially through A.C. contactor it is normally opened touch
Point, system operation intermediate relay normally closed switch (R1-1) be connected with power supply.When system operation or fault-free, system fortune
Row intermediate relay (R1) is attracted, to which A.C. contactor is normally attracted, electric heater normal heating；When system stops or has
When failure, system operation intermediate relay (R1) disconnects, if any A.C. contactor is in attracting state, excitation at this time
Buckle releaser (TK1) must be electric, controls miniature circuit breaker (MCB1) by force and disconnects, and control electric heater is no longer heated, and is had in this way
Effect ensures the safety of electric heater, avoids that fire occurs.
Description of the drawings
It is more particularly described by the preferred embodiment in the utility model shown in attached drawing, the utility model above and other mesh
, feature and advantage will become more fully apparent.Identical reference numeral indicates identical part in whole attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows this purport.
Fig. 1 is a kind of electrical block diagram of electric heating system of the utility model.
Specific implementation mode
For the ease of understanding the utility model, below with reference to relevant drawings to being originally described more fully.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the technical field for belonging to this
The normally understood meaning of personnel is identical.Term used in book described herein is intended merely to the mesh of description specific embodiment
, it is not intended that in limitation the utility model.Term " and or " used herein includes one or more relevant institute's lists
Any and all combinations of purpose.
The present embodiment provides a kind of electric heating systems comprising at least one set of electric heater, concatenated with the electric heater
A.C. contactor, miniature circuit breaker (MCB1), the electric heater pass sequentially through the A.C. contactor, miniature circuit breaker
(MCB1) it is connected with power supply, the control circuit of the miniature circuit breaker (MCB1) is connected with excitation buckle releaser (TK1), the excitation
Buckle releaser (TK1) passes sequentially through the normally closed switch (R1- of the normally opened contact of A.C. contactor, system operation intermediate relay (R1)
1) it is connected with power supply.
In a further preferred embodiment, the electric heater includes that two groups or more electricity parallel with one another adds
Hot device, each electric heater are in series with A.C. contactor, and each group electric heater passes through the miniature circuit breaker (MCB1) and institute
It states power supply to be connected, the normally opened contact of each A.C. contactor is connected in parallel.
With reference to figure 1, in a further preferred embodiment, the electric heater includes that the first electricity being connected in parallel with each other adds
Hot device, the second electric heater, third electric heater；The A.C. contactor includes that one end is connected separately with first electric heater
The first A.C. contactor (M1) that one end is connected with the miniature circuit breaker (MCB1), one end are connected with second electric heater
The second A.C. contactor (M2), one end and the third electric heater phase that the other end is connected with the miniature circuit breaker (MCB1)
The third A.C. contactor (M3) that even other end is connected with the miniature circuit breaker (MCB1)；First A.C. contactor (M1)
Normally opened contact (M1-1), the normally opened contact (M2-1) of the second A.C. contactor (M2), third A.C. contactor (M3) it is normally opened
Contact (M3-1) is connected to the normal of the excitation buckle releaser (TK1) and the system operation intermediate relay after being connected in parallel with each other
Make and break is closed between (R1-1).This electric heating system is connected in the control circuit of the miniature circuit breaker (MCB1) of heater circuit and is encouraged
Magnetic release (TK1), the excitation buckle releaser (TK1) pass sequentially through the normally opened contact of A.C. contactor, among system operation after
The normally closed switch (R1-1) of electric appliance is connected with power supply.When system operation or fault-free, system operation intermediate relay (R1)
It is attracted, to which A.C. contactor is normally attracted, electric heater normal heating；When system stopping or in the event of failure, system operation
Intermediate relay (R1) disconnects, if any A.C. contactor is in attracting state at this time, excitation buckle releaser (TK1) obtains
Electricity controls miniature circuit breaker (MCB1) and disconnects by force, and control electric heater is no longer heated, such effective guarantee electric heater
Safety, avoid occur fire.
In a further preferred embodiment, the miniature circuit breaker (MCB1) by miniature circuit breaker (MCCB) afterwards with electricity
Source is connected, and further increases the safety of electric heating system.
In a further preferred embodiment, the normally closed switch (R1-1) of the system operation intermediate relay is by miniature
Breaker (MCB2) is connected with power supply afterwards, further increases the safety of electric heating system.
In a further preferred embodiment, the miniature circuit breaker (MCB2) by miniature circuit breaker (MCCB) afterwards with electricity
Source is connected, and further increases the safety of electric heating system.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
The several embodiments of utility model above described embodiment only expresses, the description thereof is more specific and detailed, but
Can not the limitation to utility model patent range therefore be interpreted as.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of electric heating system, it is characterised in that connect including at least one set of electric heater, with concatenated exchange of the electric heater
Tentaculum, miniature circuit breaker (MCB1), the electric heater pass sequentially through the A.C. contactor, miniature circuit breaker (MCB1) and electricity
Source is connected, and the control circuit of the miniature circuit breaker (MCB1) is connected with excitation buckle releaser (TK1), the excitation buckle releaser
(TK1) normally opened contact of A.C. contactor, normally closed switch (R1-1) and the power supply phase of system operation intermediate relay are passed sequentially through
Even.
2. a kind of electric heating system as described in claim 1, it is characterised in that the electric heater includes two groups or two groups
The above electric heater parallel with one another, each electric heater are in series with A.C. contactor, and each group electric heater is by described micro-
Type breaker (MCB1) is connected with the power supply, and the normally opened contact of each A.C. contactor is connected in parallel.
3. a kind of electric heating system as described in claim 1, it is characterised in that the electric heater includes being connected in parallel with each other
The first electric heater, the second electric heater, third electric heater；The A.C. contactor includes that one end adds with first electricity
The first A.C. contactor (M1), one end and second electricity that the connected other end of hot device is connected with the miniature circuit breaker (MCB1)
The second A.C. contactor (M2), one end and the third that the connected other end of heater is connected with the miniature circuit breaker (MCB1)
The third A.C. contactor (M3) that the connected other end of electric heater is connected with the miniature circuit breaker (MCB1)；First exchange
The normally opened contact (M1-1) of contactor (M1), normally opened contact (M2-1), the third A.C. contactor of the second A.C. contactor (M2)
(M3) normally opened contact (M3-1) is connected to after being connected in parallel with each other among the excitation buckle releaser (TK1) and the system operation
Between the normally closed switch (R1-1) of relay.
4. a kind of electric heating system as described in claim 1, it is characterised in that the miniature circuit breaker (MCB1) is by miniature
Breaker (MCCB) is connected with power supply afterwards.
5. a kind of electric heating system as described in claim 1, it is characterised in that the system operation intermediate relay it is normally closed
Switch (R1-1) is connected with power supply afterwards by miniature circuit breaker (MCB2).
6. a kind of electric heating system as claimed in claim 5, it is characterised in that the miniature circuit breaker (MCB2) is by miniature
Breaker (MCCB) is connected with power supply afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929808.3U CN207939756U (en) | 2017-12-31 | 2017-12-31 | A kind of electric heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929808.3U CN207939756U (en) | 2017-12-31 | 2017-12-31 | A kind of electric heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207939756U true CN207939756U (en) | 2018-10-02 |
Family
ID=63648334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721929808.3U Expired - Fee Related CN207939756U (en) | 2017-12-31 | 2017-12-31 | A kind of electric heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207939756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108064090A (en) * | 2017-12-31 | 2018-05-22 | 广州市大弘自动化科技有限公司 | A kind of electric heating system |
-
2017
- 2017-12-31 CN CN201721929808.3U patent/CN207939756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108064090A (en) * | 2017-12-31 | 2018-05-22 | 广州市大弘自动化科技有限公司 | A kind of electric heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20181002 Termination date: 20201231 |