CN217591114U

CN217591114U - Electric heater with overheat protection function

Info

Publication number: CN217591114U
Application number: CN202123245243.6U
Authority: CN
Inventors: 徐达峰
Original assignee: Guangzhou Baoda Electric Titanium Products Co ltd
Current assignee: Guangzhou Baoda Electric Titanium Products Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-10-14
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses an electric heater with overheat protection function, including PCB control protection shield, the top fixed mounting of PCB control protection shield has the controller, the input fixedly connected with power transmission line of controller, the bottom of PCB control protection shield is equipped with head and holds the piece, the bottom fixed connection of head holds the piece has first heating rod and second heating rod, and is linked together through the heating knee between first heating rod and the second heating rod, the bottom fixed mounting of PCB control protection shield has temperature sensor and the level sensor who is located the first heating rod and the second heating rod outside; this take electric heater of overheat protection function, through PCB control protection shield bottom temperature sensor's setting, can utilize temperature sensor to monitor the liquid level height in the container in real time, and then can in time carry out the power-off protection to whole heating system through the controller, solved current device be difficult to according to corresponding liquid level change and lead to the not good problem of security.

Description

Electric heater with overheat protection function

Technical Field

The utility model relates to an electric heater technical field specifically is an electric heater of taking overheat protection function.

Background

An electric heater is a popular electric heating device in the world. The device is used for heating, preserving heat and heating flowing liquid and gaseous media. When a heating medium passes through the heating cavity of the electric heater under the action of pressure, huge heat generated in the working process of the electric heating element is uniformly taken away by adopting a fluid thermodynamic principle, so that the temperature of the heated medium meets the process requirements of users.

Therefore, we propose an electric heater with overheat protection function.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a take electric heater of overheat protection function has solved current device and has been difficult to according to corresponding liquid level change and temperature variation and lead to the not good problem of security.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a take electric heater of overheat protection function, includes PCB control protection shield, the top fixed mounting of PCB control protection shield has the controller, the input fixedly connected with power transmission line of controller, the bottom of PCB control protection shield is equipped with the head and holds the piece, the first heater rod of bottom fixedly connected with and the second heater rod of head holding piece, and be linked together through the heating knee between first heater rod and the second heater rod, the bottom fixed mounting of PCB control protection shield has temperature sensor and level sensor who is located the first heater rod and the second heater rod outside.

Preferably, the bottom of the head receiving block is fixedly provided with a metal shell positioned at the outer sides of the first heating rod and the second heating rod, and the bottom of the metal shell is open.

Preferably, first heating rod is one fifth of length for the second heating rod, be equipped with the heating knee between the bottom of first heating rod and the bottom of second heating rod, and the heating knee is the heliciform.

Preferably, the outer side of the power transmission line is provided with a high-temperature resistant corrugated pipe, and the outer end of the power transmission line is fixedly connected with a plug.

The utility model provides a take electric heater of overheat protection function. The method has the following beneficial effects:

1. this take electric heater of overheat protection function, through PCB control protection shield bottom temperature sensor's setting, can utilize temperature sensor to monitor the liquid level in the container in real time, when the liquid level is less than the temperature sensor bottom in the container, temperature sensor can send corresponding signal in to the controller, and then can in time carry out the power-off protection to whole heating system through the controller, has solved current device and has been difficult to change and lead to the not good problem of security according to corresponding liquid level.

2. This take electric heater of overheat protection function, through first heating rod and the setting of second heating rod outside level sensor, can utilize level sensor to carry out real-time supervision to the temperature of liquid in the container, when liquid temperature was too high in the container, the temperature detection end of level sensor bottom can be with signal transmission to the controller in, and then the controller can in time carry out power-off protection to whole heating system, the security when increasing the device and using, the not good problem of security when having solved current device and using.

3. This take electric heater of overheat protection function through the setting of heating knee between first heater rod and the second heater rod, can increase the area of contact of whole heater rod body and liquid to increase the heating efficiency of the device when using, guaranteed the heating effect of current device during operation to corresponding liquid.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the external view of the present invention;

fig. 3 is a schematic structural view of the heating rod of the present invention.

In the figure: 1. the PCB controls the protective plate; 2. a controller; 3. a power transmission line; 4. a temperature sensor; 5. a liquid level sensor; 6. a metal shell; 7. a plug; 8. a head receiving block; 9. a first heating rod; 10. a second heating rod; 11. the bent rod is heated.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: an electric heater with an overheat protection function comprises a PCB control protection board 1, a controller 2 is fixedly installed at the top of the PCB control protection board 1, a power transmission line 3 is fixedly connected to the input end of the controller 2, a head bearing block 8 is assembled at the bottom of the PCB control protection board 1, a first heating rod 9 and a second heating rod 10 are fixedly connected to the bottom of the head bearing block 8, the first heating rod 9 is communicated with the second heating rod 10 through a heating bent rod 11, and a temperature sensor 4 and a liquid level sensor 5 which are located on the outer sides of the first heating rod 9 and the second heating rod 10 are fixedly installed at the bottom of the PCB control protection board 1;

in the embodiment, it is to be added that the electric heater with the overheat protection function can monitor the liquid level in the container in real time by using the temperature sensor 4 through the arrangement of the temperature sensor 4 at the bottom of the PCB control protection plate 1, and when the liquid level in the container is lower than the bottom end of the temperature sensor 4, the temperature sensor 4 can send a corresponding signal to the controller 2, so that the power-off protection can be timely performed on the whole heating system through the controller 2, and the problem that the existing device is difficult to change according to the corresponding liquid level to cause poor safety is solved;

in addition, this take electric heater of overheat protection function, setting through first heating rod 9 and second heating rod 10 outside level sensor 5, can utilize level sensor 5 to carry out real-time supervision to the temperature of liquid in the container, when liquid temperature was too high in the container, the temperature detection end of level sensor 5 bottom can be with signal transmission to controller 2 in, and then controller 2 can in time carry out power-off protection to whole heating system, increase the security when the device uses, the not good problem of security when having solved current device and using.

In this embodiment, it should be added that the metal shell 6 located outside the first heating rod 9 and the second heating rod 10 is fixedly installed at the bottom of the head receiving block 8, and the bottom of the metal shell 6 is open;

wherein, the setting up of metal casing 6 can effectively protect first heater rod 9 and second heater rod 10, and impurity and first heater rod 9, second heater rod 10 and the contact of heating knee 11 in the air and lead to the not good condition of this heater rod heating efficiency to take place when avoiding not using.

In this embodiment, it should be added that the length of the first heating rod 9 is one fifth of the length of the second heating rod 10, a heating bent rod 11 is installed between the bottom end of the first heating rod 9 and the bottom end of the second heating rod 10, and the heating bent rod 11 is in a spiral shape;

wherein, this take electric heater of overheat protection function through the setting of heating knee 11 between first heater rod 9 and the second heater rod 10, can increase the area of contact of whole heater rod body and liquid to increase the heating efficiency of the device when using, guaranteed the heating effect of current device during operation to corresponding liquid.

In this embodiment, it should be added that a high temperature resistant corrugated pipe is installed outside the power transmission line 3, and the plug 7 is fixedly connected to the outer end of the power transmission line 3;

wherein, the setting of 3 outside high temperature resistant bellows of power transmission line is convenient for effectively protect it, and the setting of plug 7 is convenient for communicate with the power to be convenient for provide the power to whole heating mechanism.

The utility model discloses a theory of operation and use flow: when the device is required to heat, the metal shell 6 is taken down, the first heating rod 9, the second heating rod 10 and the heating bent rod 11 are placed in the container and are in direct contact with liquid, then the power transmission line 3 and the plug 7 are utilized to be electrically connected with a power supply, the controller 2 can enable the first heating rod 9, the second heating rod 10 and the heating bent rod 11 to generate heat in the liquid through the head bearing block 8 after being electrified, so that the heating effect is achieved, when the liquid level in the container falls below the bottom end of the temperature sensor 4, the temperature sensor 4 can send the signal to the controller 2, the controller 2 can timely cut off the power supply of the whole system, the power-off protection effect is achieved, the arrangement of the bottom end temperature detection end of the liquid level sensor 5 can monitor the temperature of the liquid in the container in real time, when the liquid temperature is too high, the liquid level sensor 5 can send the corresponding signal to the controller 2, the controller 2 can also timely cut off the power supply of the whole system, and the power-off supply effect is also achieved, and the safety of the device in working is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a take electric heater of overheat protection function which characterized in that: including PCB control protection shield (1), the top fixed mounting of PCB control protection shield (1) has controller (2), input fixedly connected with power transmission line (3) of controller (2), the bottom of PCB control protection shield (1) is equipped with head and holds piece (8), the head holds first heater rod (9) of the bottom fixedly connected with and second heater rod (10) of piece (8), and is linked together through heating knee (11) between first heater rod (9) and second heater rod (10), the bottom fixed mounting of PCB control protection shield (1) has temperature sensor (4) and level sensor (5) that are located first heater rod (9) and second heater rod (10) the outside.

2. An electric heater with overheat protection function according to claim 1, wherein: the bottom of the head bearing block (8) is fixedly provided with a metal shell (6) positioned on the outer sides of the first heating rod (9) and the second heating rod (10), and the bottom of the metal shell (6) is open.

3. An electric heater with overheat protection function according to claim 1, wherein: first heating rod (9) are one fifth of length for second heating rod (10), be equipped with between the bottom of first heating rod (9) and the bottom of second heating rod (10) and heat curved bar (11), and heat curved bar (11) are the heliciform.

4. An electric heater with overheat protection function according to claim 1, characterized in that: the outer side of the power transmission line (3) is provided with a high-temperature resistant corrugated pipe, and the outer end of the power transmission line (3) is fixedly connected with a plug (7).