CN110345545A - electric heater with temperature limiting protection function - Google Patents
electric heater with temperature limiting protection function Download PDFInfo
- Publication number
- CN110345545A CN110345545A CN201910672403.3A CN201910672403A CN110345545A CN 110345545 A CN110345545 A CN 110345545A CN 201910672403 A CN201910672403 A CN 201910672403A CN 110345545 A CN110345545 A CN 110345545A
- Authority
- CN
- China
- Prior art keywords
- electric heater
- temperature
- flow path
- temperature limiter
- hot flow
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000002159 abnormal effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
The invention provides an electric heater with a temperature limiting protection function. The electric heater includes casing and temperature limiter, be formed with electric control chamber and hot runner in the casing, be provided with heating element in the hot runner, the electric control chamber with be provided with the intercommunication mouth between the hot runner, the temperature limiter set up in the electric control intracavity, just the temperature sensing face of temperature limiter passes through the intercommunication mouth is directional the hot runner. According to the electric heater with the temperature limiting protection function, the temperature limiter is arranged to control the internal problem of the electric heater, the communication port can directly lead hot air to the temperature limiter when the air outlet is blocked, timely response of the temperature limiter is guaranteed, the temperature limiter is sealed in the electric box, the waterproof performance is improved, the heat dissipation port can discharge the hot air flowing to the temperature limiter to the outside of the shell, the situation that the normal work of the electric cabinet and the temperature limiter is influenced due to overhigh temperature in the electric control cavity is avoided, and the flow guide piece can prevent the hot air from impacting the temperature sensing surface of the temperature limiter to influence the normal work of the electric heater.
Description
Technical field
The present invention relates to the technical field of heating system, especially a kind of electric heater with protected by temperature limitation function.
Background technique
Electric heater is because the advantages that easy to carry, easy to use, has been commonly used for family, hotel, especially in south
Winter is moist sombrely, the local use of heating is not more universal, and field of employment is very extensive.Electric heater product major function
It is fever warming functions, in order to prevent its internal temperature excessively a height of the problems such as causing fire, limit is set generally in electric heater
Temperature limiter is generally arranged and is arranged in electric heater and heater element in different zones in order to which electric heater can work normally by warm device
It is interior, however when the temperature is excessively high, temperature limiter cannot obtain its internal temperature in time, and cause temperature limiter fast in electric heater
The problem of speed response, reduces the safety of electric heater.
Summary of the invention
In order to solve electric heater low technical problem of safety due to temperature limiter low-response, and provide a kind of with temperature limiter
And the good electric heater with protected by temperature limitation function of waterproof performance.
A kind of electric heater, including shell and temperature limiter are formed with automatically controlled chamber and hot flow path, the hot flow path in the shell
It is inside provided with heating element, communication port is provided between the automatically controlled chamber and the hot flow path, the temperature limiter is set to described
It is automatically controlled intracavitary, and the temperature surface of the temperature limiter is directed toward the hot flow path by the communication port.
The upper end of the shell is provided with air outlet, the one end of the hot flow path far from the heating element and the outlet air
Mouth connection.
Thermovent is additionally provided on the shell, the thermovent is connected to the automatically controlled chamber, and in the hot flow path
Gas can successively flow to the outside of the shell after the communication port and the thermovent.
The electric heater includes electrical appliance kit, and the electrical appliance kit is set to described automatically controlled intracavitary, the temperature limiter sealed set
The hot flow path is directed toward in the prominent electrical appliance kit of temperature surface of the interior of electrical box, and the temperature limiter.
The electric heater further includes side plate, and the enclosure interior is divided into the automatically controlled chamber and the hot-fluid by the side plate
Road, the communication port are arranged on the side plate, and electrical appliance kit fixed setting is on the side plate.
Projected area of the electrical appliance kit on the side plate is less than the area of the communication port.
The electric heater further includes conducting element, and the conducting element is set on the temperature limiter, and the conducting element protrudes into
In between the heating element and the temperature surface in the hot flow path.
The section of the conducting element is L shape, and the sealing including being vertically arranged and horizontally disposed baffle portion are described close
Envelope portion is fixedly installed on the temperature limiter, and the baffle portion is between the heating element and the temperature surface.
The sealing fits on the temperature limiter, and through-hole is provided on the sealing, and the temperature surface runs through institute
It states through-hole and subsequently points to the hot flow path.
Gas flow direction in the hot flow path is straight up that the heating element is set under the hot flow path
Portion, and the baffle portion is in the top of the heating element.
Electric heater provided by the invention with protected by temperature limitation function, setting temperature limiter control the problem inside electric heater,
And hot gas can be directed directly at temperature limiter by communication port when air outlet is blocked, and guarantee timely responding to for temperature limiter, and
And temperature limiter is sealed in interior of electrical box, the waterproof performance of electric heater is increased, thermovent can will flow to the heat of temperature limiter
Gas drains into the outside of shell, avoids automatically controlled cavity temperature excessively high and influences the normal work of electric cabinet and temperature limiter, conducting element energy
It enough prevents the temperature surface of hot gas impact temperature limiter and influences the normal work of electric heater.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the electric heater of the embodiment of the electric heater provided by the invention with protected by temperature limitation function；
Fig. 2 is the side plate that removes of the electric heater of the embodiment of the electric heater provided by the invention with protected by temperature limitation function
Structural schematic diagram；
Fig. 3 is the electrical appliance kit of the embodiment of the electric heater provided by the invention with protected by temperature limitation function, temperature limiter and leads
Flow the explosive view of part；
In figure:
1, shell；2, temperature limiter；11, automatically controlled chamber；12, hot flow path；3, communication port；4, air outlet；5, thermovent；6, electric appliance
Box；7, side plate；8, conducting element；.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.
Electric heater as shown in Figure 1 to Figure 3, including shell 1 and temperature limiter 2 are formed with automatically controlled 11 He of chamber in the shell 1
Hot flow path 12 is provided with heating element, the company of being provided between the automatically controlled chamber 11 and the hot flow path 12 in the hot flow path 12
Port 3, the temperature limiter 2 are set in the automatically controlled chamber 11, and the temperature surface of the temperature limiter 2 is referred to by the communication port 3
To the hot flow path 12, temperature limiter 2 can be by temperature sensor, when electric heater is alarmed when the temperature is excessively high or stops electric heater
It only works, when electric heater works normally, gas in heating element heats hot flow path 12, the gas after heating is along hot flow path 12
Shell 1 is discharged, carries out normal heating, and when electric heater is by abnormal operation, the hot gas in hot flow path 12 can not be expelled directly out
Shell 1 can only be entered in automatically controlled chamber 11 by communication port 3, and the temperature surface of temperature limiter 2 directly senses heat by communication port 3 at this time
The temperature of gas to judge that the temperature in hot flow path 12 is excessively high, and then can be derived that electric heater is in abnormal operating state, i.e.,
The operating time of protection for accelerating temperature limiter 2, in turn avoiding components in electric heater the peace such as is influenced by high temperature and occurs dissolving
Full problem.
The electric heater further includes conducting element 8, and the conducting element 8 is set on the temperature limiter 2, and the conducting element 8
It protrudes into the hot flow path 12 between the heating element and the temperature surface, using conducting element 8, heating element is generated
Hot gas carry out it is a degree of block, avoid hot gas from directly rushing at the temperature surface of temperature limiter 2, and make temperature limiter 2 in electric heater
It is protected when normal work, influences the heating effect of electric heater.
The section of the conducting element 8 is L shape, and the sealing including being vertically arranged and horizontally disposed baffle portion are described
Sealing is fixedly installed on the temperature limiter 2, and the baffle portion is between the heating element and the temperature surface, sealing
Portion can be sealed the corresponding side surface of temperature limiter 2, and the edge of special sealing carries out close with the corresponding side surface of electrical appliance kit 6
Envelope connection, guarantees the waterproof performance of temperature limiter 2, and baffle portion can be realized and block to hot gas.
The sealing fits on the temperature limiter 2, and through-hole is provided on the sealing, and the temperature surface runs through institute
It states through-hole and subsequently points to the hot flow path 12.
Gas flow direction in the hot flow path 12 is straight up that the heating element is set to the hot flow path 12
Lower part, and the baffle portion is in the top of the heating element, is risen using hot-air, separate, the gear of cold air decline
Stream portion can block hot gas in the case where hot gas rises naturally, guarantee the reliability that temperature limiter 2 works.
Embodiment
The electric heater A2 (hereinafter referred to as A2) of electric heater A1 (hereinafter referred to as A1) and the application for the prior art are carried out
Covering test:
Table 1-1
| Temperature limiter parameter | Plastic rubber member surface temperature | The temperature limiter reaction time | |
| A1 | 90℃-105℃ | 160℃ | > 4min |
| A2 | 75℃ | 144 DEG C of < | < 2min |
It can be seen that after A1 is capped for upper table, surface temperature can reach 160 DEG C, and temperature limiter needs
De-energizing actions are just carried out after the time greater than 4min, are severely exceeded；And after A2 is capped, temperature limiter is within the time of < 2min
De-energizing actions are generated, so that the surface temperature of electric heater is no more than 144 DEG C, meet temperature rise demand, in summary, the skill of the application
Art scheme can increase the reaction rate of temperature limiter, want so that electric heater surface temperature in the case where capped be made to meet temperature rise
It asks, is effectively increased the security performance of electric heater.
The upper end of the shell 1 is provided with air outlet 4, the one end of the hot flow path 12 far from the heating element with it is described
Air outlet 4 is connected to, and the hot gas after heating element heats is expelled to the external of shell 1 by the air outlet 4 and completes heating.
Thermovent 5 is additionally provided on the shell 1, the thermovent 5 is connected to the automatically controlled chamber 11, and the hot flow path
Gas in 12 can successively flow to the outside of the shell 1, hot flow path 12 after the communication port 3 and the thermovent 5
Interior hot gas can form convection current at thermovent 5, accelerate hot gas flowing, avoid in automatically controlled chamber 11 that temperature is excessively high to ask
Topic.
The electric heater includes electrical appliance kit 6, and the electrical appliance kit 6 is set in the automatically controlled chamber 11, and the temperature limiter 2 seals
It is set to inside the electrical appliance kit 6, and the prominent electrical appliance kit 6 of temperature surface of the temperature limiter 2 is directed toward the hot flow path 12, electricity
Device box 6 has waterproof construction, and temperature limiter 2 is sealed directly to inside electrical appliance kit 6 in order to improve the waterproof performance of temperature limiter 2, is reached
To the purpose of waterproof.
The electric heater further includes side plate 7, and the side plate 7 will be divided into the automatically controlled chamber 11 and described inside the shell 1
Hot flow path 12, the communication port 3 are set on the side plate 7, and the electrical appliance kit 6 is fixedly installed on the side plate 7.
Projected area of the electrical appliance kit 6 on the side plate 7 is less than the area of the communication port 3, so that electrical appliance kit 6 is set
There is spacing when setting at communication port 3, realized using spacing and flow to shell 1 after hot gas passes sequentially through communication port 3 and thermovent 5
It is external.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of electric heater, it is characterised in that: including shell (1) and temperature limiter (2), be formed with automatically controlled chamber in the shell (1)
(11) and hot flow path (12) heating element, the automatically controlled chamber (11) and the hot flow path, are provided in the hot flow path (12)
(12) it being provided between communication port (3), the temperature limiter (2) is set in the automatically controlled chamber (11), and the temperature limiter (2)
Temperature surface is directed toward the hot flow path (12) by the communication port (3).
2. electric heater according to claim 1, it is characterised in that: the electric heater further includes conducting element (8), the water conservancy diversion
Part (8) is set on the temperature limiter (2), and the conducting element (8) protrudes into the hot flow path (12) in the heating unit
Between part and the temperature surface.
3. electric heater according to claim 2, it is characterised in that: the section of the conducting element (8) is L shape, and including perpendicular
The sealing being directly arranged and horizontally disposed baffle portion, the sealing are fixedly installed on the temperature limiter (2), the baffle
Portion is between the heating element and the temperature surface.
4. electric heater according to claim 3, it is characterised in that: the sealing fits on the temperature limiter (2), institute
It states and is provided with through-hole on sealing, the temperature surface subsequently points to the hot flow path (12) through the through-hole.
5. electric heater according to claim 3, it is characterised in that: the gas flow direction in the hot flow path (12) is perpendicular
Straight upward, the heating element is set to the lower part of the hot flow path (12), and the baffle portion is in the heating element
Top.
6. electric heater according to claim 1, it is characterised in that: the upper end of the shell (1) is provided with air outlet (4),
The hot flow path (12) is connected to far from one end of the heating element with the air outlet (4).
7. electric heater according to claim 1, it is characterised in that: be additionally provided with thermovent (5), institute on the shell (1)
It states thermovent (5) to be connected to the automatically controlled chamber (11), and the gas in the hot flow path (12) can successively pass through the connection
The outside of the shell (1) is flow to after mouth (3) and the thermovent (5).
8. electric heater according to claim 1, it is characterised in that: the electric heater includes electrical appliance kit (6), the electrical appliance kit
(6) it is set in the automatically controlled chamber (11), it is internal that the temperature limiter (2) is sealed at the electrical appliance kit (6), and the limit is warm
The prominent electrical appliance kit (6) of the temperature surface of device (2) is directed toward the hot flow path (12).
9. electric heater according to claim 8, it is characterised in that: the electric heater further includes side plate (7), the side plate
(7) it will be divided into the automatically controlled chamber (11) and the hot flow path (12) inside the shell (1), the communication port (3) is set to institute
It states on side plate (7), and the electrical appliance kit (6) is fixedly installed on the side plate (7).
10. electric heater according to claim 9, it is characterised in that: throwing of the electrical appliance kit (6) on the side plate (7)
Shadow area is less than the area of the communication port (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672403.3A CN110345545A (en) | 2019-07-24 | 2019-07-24 | electric heater with temperature limiting protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910672403.3A CN110345545A (en) | 2019-07-24 | 2019-07-24 | electric heater with temperature limiting protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345545A true CN110345545A (en) | 2019-10-18 |
Family
ID=68178837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910672403.3A Pending CN110345545A (en) | 2019-07-24 | 2019-07-24 | electric heater with temperature limiting protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207438A (en) * | 2020-01-13 | 2020-05-29 | 珠海格力电器股份有限公司 | Electric heater and control method thereof |
-
2019
- 2019-07-24 CN CN201910672403.3A patent/CN110345545A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207438A (en) * | 2020-01-13 | 2020-05-29 | 珠海格力电器股份有限公司 | Electric heater and control method thereof |
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