CN220174205U - Temperature control protection heating rod - Google Patents
Temperature control protection heating rod Download PDFInfo
- Publication number
- CN220174205U CN220174205U CN202321524253.XU CN202321524253U CN220174205U CN 220174205 U CN220174205 U CN 220174205U CN 202321524253 U CN202321524253 U CN 202321524253U CN 220174205 U CN220174205 U CN 220174205U
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- temperature
- heating
- circuit
- bracket
- heating wire
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 59
- 239000010453 quartz Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 4
- 239000012634 fragment Substances 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a temperature control protection heating rod, which comprises a heating component, wherein the heating component comprises a bracket, a quartz tube sleeved on the bracket, a ceramic rod and a heating wire which are arranged in the quartz tube, and a circuit connected on the heating wire, the circuit is connected in series with a temperature control component for controlling the on-off of the heating wire, and the temperature control component comprises a temperature spring plate, a movable contact arranged at the free end of the temperature spring plate, a fixed contact which is arranged on the bracket and can be matched with the movable contact so as to enable the circuit to be on-off, and a temperature regulating structure for regulating the force of the elastic pressing of the temperature spring plate on the fixed contact at normal temperature; the heating rod further comprises a temperature protection component capable of switching on and off the circuit, and the temperature protection component comprises a temperature controller which is arranged between the bracket and the heating wire and is connected on the circuit in series. The utility model has the advantages of safety, reliability and difficult damage.
Description
Technical Field
The utility model relates to the technical field of heating rods, in particular to a temperature control protection heating rod.
Background
The heating rod is most commonly used for heating water in the fish tank, and can be divided into two types according to the principle and structure, one type is electronic type, the temperature is detected and controlled by adopting a thermistor, and the other type is a bimetallic mechanical type temperature control heating rod (bimetallic is also called a temperature shrapnel).
The bimetallic strip mechanical temperature control heating rod (such as CN 201383884Y) has the advantages of low price, and the main principle is that the bimetallic strips of two different materials are combined together by a special process, and the metal strips deform according to the temperature change due to the difference of expansion coefficients when the temperature is changed. The bimetallic strip is used as a contact switch inside the heating rod, and the contact is automatically disconnected to control the temperature after the temperature is reached. However, the bimetal is easy to generate fatigue in the use process, so that the bimetal cannot be started or stopped along with the change of temperature, namely the bimetal fails. After the bimetallic strip fails, the temperature may rise all the time, thereby causing safety problems such as damage to the heating rod.
The present utility model has been made based on such a situation.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a temperature control heating rod which is safer and more reliable and is not easy to damage.
The utility model is realized by the following technical scheme:
in order to solve the technical problems, the utility model provides a temperature control protection heating rod, which comprises a heating component, wherein the heating component comprises a bracket, a quartz tube sleeved on the bracket, a ceramic rod and a heating wire which are arranged in the quartz tube, and a circuit connected to the heating wire, the circuit is connected with a temperature control component used for controlling the on-off of the circuit in series, and the temperature control component comprises a temperature spring plate, a movable contact arranged at the free end of the temperature spring plate, a fixed contact which is arranged on the bracket and can be mutually matched with the movable contact so as to switch on-off the circuit, and a temperature regulating structure used for regulating the force of the elastic pressing of the temperature spring plate on the fixed contact at normal temperature; the heating rod further comprises a temperature protection component capable of switching on and off the circuit, and the temperature protection component comprises a temperature controller which is arranged between the bracket and the heating wire and is connected on the circuit in series.
In order to further solve the technical problem to be solved, the temperature threshold of the temperature controller is larger than that of the temperature control component in the temperature control protection heating rod.
In order to further solve the technical problem to be solved, the temperature control protection heating rod provided by the utility model comprises a temperature adjusting screw rod which is connected to the bracket in a threaded manner and can press the temperature elastic sheet towards the top, so that the movable contact is close to and far from the fixed contact.
In order to further solve the technical problem to be solved, the temperature control protection heating rod provided by the utility model is characterized in that the temperature adjusting screw is connected with a temperature adjusting knob, and a first transmission structure with the transmission ratio smaller than 1 is arranged between the temperature adjusting knob and the temperature adjusting screw.
In order to further solve the technical problem to be solved, in the temperature control protection heating rod provided by the utility model, the temperature adjusting screw is also connected with a fine adjusting knob, and the fine adjusting knob is fixed on the temperature adjusting screw or a second transmission structure with the transmission ratio being greater than or equal to 1 is arranged between the fine adjusting knob and the temperature adjusting screw.
In order to further solve the technical problem to be solved, the temperature control protection heating rod provided by the utility model is characterized in that a heat insulation column is arranged between the heating wire and the bracket.
Compared with the prior art, the utility model has the following advantages:
the temperature controller connected in series on the circuit is arranged between the bracket and the heating wire. The main effect of temperature controller is with foretell temperature shell fragment constitutes dual insurance, if the temperature shell fragment inefficacy makes the circuit unable disconnection, and the heater continues the heating all the time, after the temperature reaches certain degree, can trigger the temperature controller, and the temperature controller can break the circuit, and the heater no longer continues the heating, can avoid heating, the damage that the temperature is too high and lead to the heating rod always because of the heater, consequently safer and more reliable, not fragile.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an exploded view of the present utility model;
fig. 3 is a cross-sectional view of the present utility model.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.
The temperature control protection heating rod shown in fig. 1 to 3 is mainly used for heating water in a water tank and comprises a heating component 1, wherein the heating component 1 comprises a bracket 11, a quartz tube 12 sleeved on the bracket 11, a ceramic rod 13 and a heating wire 14 arranged in the quartz tube 12, and a circuit connected to the heating wire 14, and the circuit is connected with a power supply component.
The circuit is connected with a temperature control component 2 for controlling the on-off state of the circuit in series, and the temperature control component 2 can break the circuit when the temperature reaches the temperature threshold value.
The temperature control assembly 2 comprises a temperature spring piece 21 (i.e. a bimetallic strip), a movable contact 22 arranged at the free end of the temperature spring piece 21, and a stationary contact 23 arranged on the bracket 11 and capable of being matched with the movable contact 22 so as to switch on and off a circuit. The temperature spring piece 21 plays a role of a switch circuit: at normal temperature, the temperature spring piece 21 is elastically pressed against the fixed contact 23, namely the movable contact 22 keeps contact with the fixed contact 23, a circuit is conducted, a closed circuit is formed, and the heating wire 14 starts to heat after being electrified; when the temperature is heated to a certain temperature, the temperature spring piece 21 is gradually deformed, and when the temperature reaches a certain temperature (temperature threshold), the movable contact 22 is separated from the fixed contact 23, the circuit is disconnected, and the heating wire 14 is not heated any more; after the constant temperature is reduced, the temperature spring piece 21 gradually rebounds again, the movable contact 22 is contacted with the static contact 23 again, the heating wire 14 starts to heat again, and the process is repeated, so that the constant temperature of water in the fish tank can be kept.
The heating rod also comprises a temperature protection component capable of switching on and off a circuit, and the temperature protection component comprises a temperature controller 3 which is arranged between the bracket 11 and the heating wire 14 and is connected in series on the circuit. The main effect of temperature controller 3 is with foretell temperature shell fragment 21 constitutes dual insurance, if temperature shell fragment 21 inefficacy makes the circuit unable disconnection, and heater 14 continues the heating all the time, can trigger temperature controller 3 after the temperature reaches certain degree, and temperature controller 3 can break off the circuit, and heater 14 does not continue the heating again, can avoid leading to the damage of heating rod because of heater 14 heats all the time, the temperature is too high, consequently safer and more reliable, not fragile.
Furthermore, the temperature controller 3 is preferably a thermistor type temperature controller, a pressure type temperature controller, a liquid expansion type temperature controller and the like, and is further preferably a temperature controller with small volume.
The temperature controller 3 only needs to play a role in safety, and the temperature threshold value of the temperature controller is not required to be adjustable and is not required to be connected with an additional controller, so that the cost is low.
More specifically, the temperature threshold of the temperature controller 3 is greater than the temperature threshold of the temperature control assembly 2. Thus, in normal operation at ordinary times, only the temperature spring piece 21 will act, and only the temperature controller 3 will act when the temperature spring piece 21 fails and the temperature is always increased.
More specifically, the temperature control assembly 2 further includes a temperature adjusting structure 24 for adjusting the force of the elastic pressing of the temperature spring 21 against the stationary contact 23 at normal temperature. Since the temperature spring piece 21 is elastically pressed against the stationary contact 23, the tighter the pressing, the more the temperature spring piece 21 needs to be deformed in the opposite direction to cause the movable contact 22 to open the stationary contact 23, that is, the higher the temperature threshold (the temperature at which the movable contact 22 opens the stationary contact 23). The temperature adjusting structure 24 is mainly used for setting a temperature threshold value (the temperature when the movable contact 22 breaks the stationary contact 23) of the temperature control assembly 2 so as to flexibly set the water temperature of the fish tank.
As shown in fig. 3, the temperature adjusting structure 24 includes a temperature adjusting screw 241 which is screwed on the bracket 11 and can press the temperature spring plate 21 toward the top, so that the movable contact 22 approaches and separates from the stationary contact 23. The lower part of the temperature spring piece 21 is bent to form an L shape, when the temperature regulating screw 241 rotates to downwards push the lower part of the temperature spring piece 21, the upper part of the temperature spring piece 21 swings towards the fixed contact 23, so that the elastic push on the fixed contact 23 is increased, and the temperature threshold is regulated; conversely, adjusting the temperature screw 241 upward will decrease the temperature threshold.
More specifically, the temperature adjusting screw 241 is connected with a temperature adjusting knob 242, and a first transmission structure with a transmission ratio smaller than 1 is arranged between the temperature adjusting knob 242 and the temperature adjusting screw 241. The first transmission is preferably a gear transmission. The temperature adjusting knob 242 is rotated to drive the temperature adjusting screw 241 to rotate faster, so as to realize fast adjustment.
More specifically, the temperature adjusting screw 241 is further connected with a fine adjusting knob 243, and the fine adjusting knob 243 is fixed on the temperature adjusting screw 241 or a second transmission structure with a transmission ratio greater than or equal to 1 is provided between the fine adjusting knob 243 and the temperature adjusting screw 241. The trimming knob 243 is turned to drive the temperature adjusting screw 241 to rotate slowly, thereby achieving trimming.
Of course, a heat insulation column 15 is arranged between the heating wire 14 and the bracket 11.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (5)
1. A control by temperature change protection heating rod which characterized in that: the heating device comprises a heating component (1), wherein the heating component (1) comprises a bracket (11), a quartz tube (12) sleeved on the bracket (11), a ceramic rod (13) and a heating wire (14) which are arranged in the quartz tube (12), and a circuit connected on the heating wire (14), a temperature control component (2) for controlling the on-off of the heating wire is connected in series on the circuit, the temperature control component (2) comprises a temperature spring piece (21), a movable contact (22) arranged at the free end of the temperature spring piece (21), a fixed contact (23) which is arranged on the bracket (11) and can be mutually matched with the movable contact (22) so as to switch on and off the circuit, and a temperature regulating structure (24) for regulating the force of the elastic pressing of the temperature spring piece (21) on the fixed contact (23) at normal temperature; the heating rod also comprises a temperature protection component capable of switching on and off a circuit, and the temperature protection component comprises a temperature controller (3) which is arranged between the bracket (11) and the heating wire (14) and is connected in series on the circuit.
2. A temperature-controlled protective heater rod according to claim 1, wherein: the temperature threshold of the temperature controller (3) is larger than the temperature threshold of the temperature control component (2).
3. A temperature-controlled protective heater rod according to claim 1, wherein: the temperature adjusting structure (24) comprises a temperature adjusting screw rod (241) which is connected to the bracket (11) in a threaded manner and can press the temperature elastic sheet (21) towards the top so as to enable the movable contact (22) to be close to and far away from the fixed contact (23).
4. A temperature-controlled protective heater rod according to claim 3, wherein: the temperature adjusting screw (241) is connected with a temperature adjusting knob (242), and a first transmission structure with a transmission ratio smaller than 1 is arranged between the temperature adjusting knob (242) and the temperature adjusting screw (241).
5. A temperature-controlled protective heater rod according to claim 3, wherein: and a fine adjustment knob (243) is further connected to the temperature adjustment screw (241), and the fine adjustment knob (243) is fixed to the temperature adjustment screw (241) or a second transmission structure with a transmission ratio greater than or equal to 1 is arranged between the fine adjustment knob (243) and the temperature adjustment screw (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321524253.XU CN220174205U (en) | 2023-06-14 | 2023-06-14 | Temperature control protection heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321524253.XU CN220174205U (en) | 2023-06-14 | 2023-06-14 | Temperature control protection heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220174205U true CN220174205U (en) | 2023-12-15 |
Family
ID=89109693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321524253.XU Active CN220174205U (en) | 2023-06-14 | 2023-06-14 | Temperature control protection heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220174205U (en) |
-
2023
- 2023-06-14 CN CN202321524253.XU patent/CN220174205U/en active Active
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