CN210425225U - Electric heater with temperature limiting protection function - Google Patents
Electric heater with temperature limiting protection function Download PDFInfo
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- CN210425225U CN210425225U CN201921178831.2U CN201921178831U CN210425225U CN 210425225 U CN210425225 U CN 210425225U CN 201921178831 U CN201921178831 U CN 201921178831U CN 210425225 U CN210425225 U CN 210425225U
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- electric heater
- temperature
- hot runner
- temperature limiter
- limiter
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- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting 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
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Abstract
The utility model provides an electric heater with limit for temperature protect 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. The utility model provides an electric heater with temperature limit protect function, set up the inside problem of temperature limiter control electric heater, and the intercommunication mouth can be when the air outlet is sheltered from directly cause temperature limiter department with steam, guarantee the timely response of temperature limiter, and seal the temperature limiter inside the electrical apparatus box, waterproof performance has been increased, the thermovent can arrange the outside to the casing with the steam that flows to the temperature limiter, avoid automatically controlled intracavity high temperature and influence the normal work of electric cabinet and temperature limiter, the water conservancy diversion spare can prevent that steam from assaulting the temperature sensing face of temperature limiter and influencing the normal work of electric heater.
Description
Technical Field
The utility model relates to a heating installation's technical field, especially an electric heater with limit for temperature protect function.
Background
The electric heater has been commonly used in places such as families, hotels and the like because of the advantages of portability, convenient use and the like, is more commonly used in places with damp and cool property and without heating in winter in south, and has wide use places. The electric heater product main function is the heating effect that generates heat, for preventing its inside high temperature for causing conflagration scheduling problem, generally all set up the temperature limiter in the electric heater, can normally work for the electric heater, generally set up the temperature limiter in the electric heater and heating element sets up in different regions, when the high temperature in the electric heater, nevertheless the temperature limiter can not in time acquire its inside temperature, and cause the unable quick response's of temperature limiter problem to make the security of electric heater reduce.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the safety of the electric heater is low due to slow response of the temperature limiter, the electric heater with the temperature limiter and the temperature limiting protection function is good in waterproofness.
The utility model provides an 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.
An air outlet is formed in the upper end of the shell, and one end, far away from the heating element, of the hot runner is communicated with the air outlet.
The shell is further provided with a heat dissipation opening, the heat dissipation opening is communicated with the electric control cavity, and gas in the hot runner can sequentially pass through the communication opening and the heat dissipation opening and then flows to the outside of the shell.
The electric heater includes the electrical apparatus box, the electrical apparatus box set up in automatically controlled intracavity, the temperature limiter seal set up in inside the electrical apparatus box, just the temperature sensing face of temperature limiter is outstanding the electrical apparatus box is directional the hot runner.
The electric heater still includes the curb plate, the curb plate will the casing is inside to be separated into the electric control chamber with the hot runner, the intercommunication mouth set up in on the curb plate, just the electrical apparatus box is fixed set up in on the curb plate.
The projection area of the electrical box on the side plate is smaller than the area of the communicating opening.
The electric heater still includes the water conservancy diversion spare, the water conservancy diversion spare set up in on the temperature limiter, just the water conservancy diversion spare stretches into be located in the hot runner heating element with between the temperature sensing face.
The cross section of the flow guide piece is L-shaped, and the flow guide piece comprises a sealing part which is vertically arranged and a flow blocking part which is horizontally arranged, wherein the sealing part is fixedly arranged on the temperature limiter, and the flow blocking part is positioned between the heating element and the temperature sensing surface.
The sealing part is attached to the temperature limiter, a through hole is formed in the sealing part, and the temperature sensing surface penetrates through the through hole and points to the hot runner.
The air flow direction in the hot runner is vertical upward, the heating element is arranged at the lower part of the hot runner, and the flow blocking part is positioned above the heating element.
The utility model provides an electric heater with limit for temperature protect function, set up the inside problem of limit for temperature ware control electric heater, and the intercommunication mouth can be when the air outlet is sheltered from directly to cause temperature limiter department with steam, guarantee the timely response of temperature limiter, and seal the temperature limiter inside the electrical apparatus box, the waterproof performance of electric heater has been increased, the thermovent can arrange the outside to the casing with the steam that flows to the temperature limiter, avoid automatically controlled intracavity high temperature and influence the normal work of electric cabinet and temperature limiter, the water conservancy diversion spare can prevent that steam from assaulting the temperature sensing face of temperature limiter and influencing the normal work of electric heater.
Drawings
Fig. 1 is a cross-sectional view of an electric heater according to an embodiment of the electric heater with a temperature limiting protection function provided by the present invention;
fig. 2 is a schematic structural view of the electric heater with a side plate removed according to the embodiment of the electric heater with a temperature limiting protection function provided by the present invention;
fig. 3 is an exploded view of an electric box, a temperature limiter and a flow guiding member of an embodiment of the electric heater with a temperature limiting protection function provided by the present invention;
in the figure:
1. a housing; 2. a temperature limiter; 11. an electrically controlled cavity; 12. a hot runner; 3. a communication port; 4. an air outlet; 5. a heat dissipation port; 6. an electrical box; 7. a side plate; 8. a flow guide member; .
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The electric heater as shown in fig. 1 to 3 comprises a shell 1 and a temperature limiter 2, wherein an electric control cavity 11 and a hot runner 12 are formed in the shell 1, a heating element is arranged in the hot runner 12, a communication port 3 is arranged between the electric control cavity 11 and the hot runner 12, the temperature limiter 2 is arranged in the electric control cavity 11, a temperature sensing surface of the temperature limiter 2 points to the hot runner 12 through the communication port 3, the temperature limiter 2 can sense the temperature, alarm or stop the electric heater when the temperature of the electric heater is too high, when the electric heater normally works, the heating element heats the gas in the hot runner 12, the heated gas is discharged out of the shell 1 along the hot runner 12 to be normally heated, when the electric heater is abnormally operated, the hot gas in the hot runner 12 cannot be directly discharged out of the shell 1 and can only enter the electric control cavity 11 through the communication port 3, the temperature sensing face of temperature limiter 2 is located the direct temperature that senses steam by intercommunication mouth 3 this moment to judge the high temperature in the hot runner 12, and then can reach the electric heater and be in abnormal operating condition, accelerated the protection action time of temperature limiter 2 promptly, avoided spare part in the electric heater again to receive the high temperature influence and appear melting scheduling safety problem.
The electric heater still includes water conservancy diversion spare 8, water conservancy diversion spare 8 set up in on the temperature limiter 2, just water conservancy diversion spare 8 stretches into be located in the hot runner 12 heating element with between the temperature sensing face, utilize water conservancy diversion spare 8, carry out certain degree with the steam that heating element produced and shelter from, avoid steam directly to dash the temperature sensing face to temperature limiter 2, and make temperature limiter 2 appear the protection when the electric heater normally works, influence the heating effect of electric heater.
The cross-section of water conservancy diversion spare 8 is L shape, and includes the sealing of vertical setting and the fender stream portion that the level set up, the sealing fixed set up in on the temperature limiter 2, keep off stream portion be in heating element with between the temperature sensing face, the sealing can seal the corresponding side of temperature limiter 2, and sealing connection is carried out with the corresponding side of electrical apparatus box 6 in the border of unusual sealing, guarantees the waterproof performance of temperature limiter 2, and the fender stream portion can realize sheltering from to steam.
The sealing part is attached to the temperature limiter 2, a through hole is formed in the sealing part, and the temperature sensing surface penetrates through the through hole and points to the hot runner 12.
The gas flow direction in the hot runner 12 is vertical upwards, heating element set up in the lower part of hot runner 12, just it is in to keep off the class portion the top of heating element utilizes hot-air to rise, and the decline of cold air is kept away from, keeps off class portion and can shelter from hot gas under the condition that hot gas naturally rises, guarantees the reliability of limit for temperature ware 2 work.
Examples
The coverage test is performed for the prior art electric heater a1 (hereinafter referred to as a1) and the electric heater a2 (hereinafter referred to as a2) of the present application:
TABLE 1-1
| Temperature limiter parameters | Surface temperature of plastic part | Reaction time of temperature limiter | |
| A1 | 90℃-105℃ | 160℃ | ＞4min |
| A2 | 75℃ | ＜144℃ | ＜2min |
As can be seen from the above table, when A1 is covered, the surface temperature can reach 160 ℃, and the temperature limiter needs to perform power-off action after more than 4min, which seriously exceeds the standard; and A2 is covered the back, and the limit for temperature ware produces the outage action in the time < 2min for the surface temperature of electric heater is no longer than 144 ℃, satisfies the temperature rise demand, and summarizing, the technical scheme of this application can increase the reaction rate of limit for temperature ware, thereby makes the electric heater surface temperature accord with the temperature rise requirement under the condition that is covered, the effectual security performance that has increased the electric heater.
An air outlet 4 is formed in the upper end of the shell 1, one end, far away from the heating element, of the hot runner 12 is communicated with the air outlet 4, and hot air heated by the heating element is discharged to the outside of the shell 1 through the air outlet 4 to complete heating.
Still be provided with thermovent 5 on the casing 1, thermovent 5 with electric control chamber 11 intercommunication, just gas in the hot runner 12 can pass through in proper order intercommunication mouth 3 with 5 back flows extremely the outside of casing 1, steam in the hot runner 12 can be in 5 departments of thermovent formation convection currents for steam flows, has avoided the too high problem of temperature in the electric control chamber 11.
The electric heater includes electrical apparatus box 6, electrical apparatus box 6 set up in the electric control chamber 11, temperature limiter 2 seal set up in inside electrical apparatus box 6, just temperature-sensitive face of temperature limiter 2 is outstanding electrical apparatus box 6 is directional hot runner 12, electrical apparatus box 6 have waterproof construction, in order to improve the waterproof performance of temperature limiter 2 with temperature limiter 2 direct seal to electrical apparatus box 6 inside, reach waterproof purpose.
The electric heater still includes curb plate 7, curb plate 7 will 1 inside separating into of casing the electric control chamber 11 with hot runner 12, intercommunication mouth 3 set up in on the curb plate 7, just electrical apparatus box 6 is fixed set up in on the curb plate 7.
The projection area of the electrical box 6 on the side plate 7 is smaller than the area of the communication port 3, so that the electrical box 6 is provided with a space when being arranged at the communication port 3, and hot air flows to the outside of the shell 1 after sequentially passing through the communication port 3 and the heat dissipation port 5 by utilizing the space.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An electric heater, its characterized in that: the temperature-sensing device comprises a shell (1) and a temperature limiter (2), wherein an electric control cavity (11) and a hot runner (12) are formed in the shell (1), a heating element is arranged in the hot runner (12), a communication port (3) is formed between the electric control cavity (11) and the hot runner (12), the temperature limiter (2) is arranged in the electric control cavity (11), and a temperature-sensing surface of the temperature limiter (2) is pointed to the hot runner (12) through the communication port (3).
2. The electric heater of claim 1, wherein: the electric heater still includes water conservancy diversion spare (8), water conservancy diversion spare (8) set up in on temperature limiter (2), just water conservancy diversion spare (8) stretch into be located in hot runner (12) heating element with between the temperature sensing face.
3. The electric heater of claim 2, wherein: the cross section of the flow guide piece (8) is L-shaped, and the flow guide piece comprises a sealing part which is vertically arranged and a flow blocking part which is horizontally arranged, wherein the sealing part is fixedly arranged on the temperature limiter (2), and the flow blocking part is positioned between the heating element and the temperature sensing surface.
4. The electric heater of claim 3, wherein: the sealing part is attached to the temperature limiter (2), a through hole is formed in the sealing part, and the temperature sensing surface penetrates through the through hole and points to the hot runner (12).
5. The electric heater of claim 3, wherein: the air flow direction in the hot runner (12) is vertical and upward, the heating element is arranged at the lower part of the hot runner (12), and the flow blocking part is positioned above the heating element.
6. The electric heater of claim 1, wherein: an air outlet (4) is formed in the upper end of the shell (1), and one end, far away from the heating element, of the hot runner (12) is communicated with the air outlet (4).
7. The electric heater of claim 1, wherein: still be provided with thermovent (5) on casing (1), thermovent (5) with electric control chamber (11) intercommunication, just gas in hot runner (12) can pass through in proper order intercommunication mouth (3) with behind thermovent (5) flow to the outside of casing (1).
8. The electric heater of claim 1, wherein: the electric heater includes electrical apparatus box (6), electrical apparatus box (6) set up in electric control chamber (11), temperature limiter (2) seal set up in inside electrical apparatus box (6), just the temperature sensing face of temperature limiter (2) is outstanding electrical apparatus box (6) is directional hot runner (12).
9. The electric heater of claim 8, wherein: the electric heater still includes curb plate (7), curb plate (7) will casing (1) is inside to be separated into electric control chamber (11) with hot runner (12), intercommunication mouth (3) set up in on curb plate (7), just electrical apparatus box (6) are fixed set up in on curb plate (7).
10. The electric heater of claim 9, wherein: the projection area of the electrical box (6) on the side plate (7) is smaller than the area of the communication port (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178831.2U CN210425225U (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 |
|---|---|---|---|
| CN201921178831.2U CN210425225U (en) | 2019-07-24 | 2019-07-24 | Electric heater with temperature limiting protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210425225U true CN210425225U (en) | 2020-04-28 |
Family
ID=70382734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921178831.2U Active CN210425225U (en) | 2019-07-24 | 2019-07-24 | Electric heater with temperature limiting protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210425225U (en) |
-
2019
- 2019-07-24 CN CN201921178831.2U patent/CN210425225U/en active Active
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