Temperature controller with temperature control and temperature limiting functions
By using the combination of automatic reset dual metal sheet and manual reset dual metal sheet in the thermostat, the use of ceramic push rods is used to achieve automatic temperature and manual reset, solving the safety of the safety of the existing temperature controller metal sheet damage caused The problem of hidden dangers ensure the dual protection and safe operation of the equipment.
Patent Information
- Application Number
- CN202323390145.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-13
AI Technical Summary
Existing thermostats are easily damaged during long-term use of metal plates, resulting in too high temperature and unable to disconnect the power supply, which poses a safety hazard.
The combination of automatic reset dual metal tablets and manual reset dual metal sheets, through the role of ceramic push rods, when the temperature reaches the set point, automatic or manual reset dual metal sheet expands and deforms, disconnects the power; when the temperature decreases, automatic automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically, automatically automatically. The reset dual metal sheet contraction and reset, re -connect the power; the manual reset dual metal sheet cannot automatically reset at room temperature, reminding users to manually reset.
Effectively avoid hidden safety hazards due to damage to metal slices, and achieve dual protection, ensure that the temperature controller can timely power off in time when the equipment fails to prevent dangerous accidents.
Smart Images
Figure CN222421786U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of temperature controllers, in particular to a temperature controller with temperature control and temperature limiting functions. [Background technology]
[0002] A thermostat refers to a series of automatic control components that undergo physical deformation inside the switch according to the temperature changes in the working environment, thereby producing certain special effects and generating conduction or disconnection actions. It is also called a temperature control switch, a temperature protector, a temperature controller, or simply a thermostat. Alternatively, the temperature is transmitted to the temperature controller through a temperature protector, and the temperature controller issues a switch command to control the operation of the equipment to achieve the ideal temperature and energy-saving effect. The thermostat is an indispensable and important part of the automatic control system. It has many functions that can meet the temperature control needs of different environments. Its function is not only to detect temperature, control the switching of heating or cooling equipment, and achieve the required temperature, but also to achieve safety control, energy saving, and remote control. However, the existing thermostat is connected to the terminal through parts such as springs and gaskets, and the structure is very complex and the installation is relatively cumbersome.
[0003] To solve the problems in the background technology, publication number CN203445061U discloses a thermostat, in which a first terminal and a second terminal are arranged at the lower end of a shell, an annular groove is arranged at the upper end of the shell, a heating plate is embedded in the annular groove, a metal disc is installed above the heating plate, a through hollow inner cavity is arranged in the middle of the shell, an insulating rod is slidably installed in the hollow inner cavity, the upper end of the insulating rod passes through the heating plate and is connected to the bottom surface of the metal disc, the lower end of the insulating rod is opposite to the end of the first terminal, and two axial through holes are also arranged in the shell, the through holes are located on the outside of the hollow inner cavity of the shell, and are connected to the bottom of the annular groove, a first rivet and a second rivet are respectively arranged in the two through holes, one end of the first rivet and the second rivet are respectively riveted to the first terminal and the second terminal, and the other end is respectively riveted to the bottom of the annular groove, so that the rivet directly connects the terminal and the heating plate, eliminating the need for springs, gaskets and other components, and its structure is more simplified and easy to install. However, the structure still has the following shortcomings:
[0004] 1. Since the structure has only one bimetallic strip, when the metal strip is damaged during long-term use, the temperature is too high to disconnect the power supply, which may easily lead to dangerous accidents. [Contents of the utility model]
[0005] The purpose of the utility model is to solve the problems in the prior art, and to provide a thermostat with temperature control and temperature limiting functions, which adopts an automatic reset bimetallic strip and a manual reset bimetallic strip to avoid dangerous accidents.
[0006] To achieve the above-mentioned purpose, the utility model proposes a temperature controller with temperature control and temperature limiting functions, including a base, a connecting cover, an automatic reset bimetallic strip, a manual reset bimetallic strip, and a ceramic push rod. A connecting cover is arranged below the base, and a cavity is formed between the base and the connecting cover. The automatic reset bimetallic strip and the manual reset bimetallic strip are located in the cavity. The lower end of the automatic reset bimetallic strip contacts the inner wall of the connecting cover, and the upper end of the automatic reset bimetallic strip contacts the lower end of the manual reset bimetallic strip. The ceramic push rod is located at the center of the upper end of the manual reset bimetallic strip. When the temperature sensed by the automatic reset bimetallic strip is 80°C, the automatic reset bimetallic strip automatically expands and deforms. When the temperature sensed by the automatic reset bimetallic strip is 60°C, the automatic reset bimetallic strip automatically contracts and resets. When the temperature sensed by the manual reset bimetallic strip is 100°C, the manual reset bimetallic strip automatically expands and deforms. The manual reset bimetallic strip needs to be manually reset when it is at room temperature.
[0007] Preferably, a guide frame is connected to the lower end of the base, and one end of the ceramic push rod passes through the guide frame and the interior of the base and extends upward.
[0008] Preferably, the static contact piece is installed on the left side of the base by a plurality of rivets, and the dynamic contact piece is installed on the right side of the base by a plurality of rivets, a spring is provided at one end of the dynamic contact piece, a dynamic contact is provided at one end of the spring piece, and a static contact is provided at one end of the static contact piece, and the dynamic contact and the static contact are in contact with each other.
[0009] Preferably, a manual cover is provided above the base, a reset button is provided at the center of the manual cover, the reset button extends upward and downward respectively, and one end of the reset button is in contact with the reed.
[0010] Preferably, the reset button and the ceramic push rod are on the same center line.
[0011] Preferably, when the automatic reset bimetal strip and the manual reset bimetal strip are in the initial reset state, the moving contact and the static contact are in contact with each other, and when the automatic reset bimetal strip and the manual reset bimetal strip are in the expanded and deformed state, the ceramic push rod pushes upward to separate the moving contact and the static contact from each other, and the manual reset bimetal strip is reset by lowering the reset button.
[0012] Beneficial effects of the utility model: the utility model uses an automatic reset bimetallic strip in conjunction with a manual reset bimetallic strip. When the temperature of the device rises to about 80°C, the automatic reset bimetallic strip will expand and deform due to heat. At this time, the ceramic push rod is forced to push upward, so that the moving contact and the static contact are separated from each other and the power is cut off. When the temperature of the device drops to about 60°C, the automatic reset bimetallic strip will shrink and reset due to the drop in device temperature, so that the moving contact and the static contact are in contact with each other and energized. When the automatic reset bimetallic strip fails to work due to continuous use, the device temperature gradually rises. When the operating temperature point of the manual reset bimetal strip is reached, the manual reset bimetal strip will expand and deform due to heat. At this time, the ceramic push rod is forced upward, causing the moving contact and the static contact to separate and cut off power. Because the manual reset bimetal strip cannot automatically reset at room temperature, the thermostat does not work under the protection of the manual reset bimetal strip, thereby reminding the staff that the equipment has failed and that the reset button must be manually pressed after the fault is eliminated. The force on the reset button decreases, driving the ceramic push rod to move down, achieving manual reset, and achieving a double protection effect, thereby avoiding dangerous accidents.
[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.
Brief Description of the Drawings
[0014] Figure 1 It is an exploded diagram of the thermostat with temperature control and temperature limiting functions of the utility model;
[0015] Figure 2 It is a top view of the thermostat with temperature control and temperature limiting functions of the utility model;
[0016] Figure 3 This is a schematic diagram of the working of the automatic piece of the thermostat with temperature control and temperature limiting functions of the utility model;
[0017] Figure 4 This is a schematic diagram of the manual operation of the thermostat with temperature control and temperature limiting functions of the utility model;
[0018] In the figure: 1-base, 2-connecting cover, 3-automatic reset bimetallic strip, 4-manual reset bimetallic strip, 5-ceramic push rod, 6-guide frame, 7-static contact piece, 8-rivet, 9-moving contact piece, 10-spring, 11-moving contact, 12-static contact, 13-manual cover plate, 14-reset button. [Specific implementation method]
[0019] See also Figure 1The utility model has a temperature control and temperature limiting function of the thermostat, including a base 1, a cover 2, an automatic reset bimetallic strip 3, a manual reset bimetallic strip 4, and a ceramic push rod 5. The base 1 is provided with a cover 2 below, and a cavity is formed between the base 1 and the cover 2. The automatic reset bimetallic strip 3 and the manual reset bimetallic strip 4 are located in the cavity. The lower end of the automatic reset bimetallic strip 3 contacts the inner wall of the cover 2, and the upper end of the automatic reset bimetallic strip 3 contacts the lower end of the manual reset bimetallic strip 4. The ceramic push rod 5 is located at the upper end of the manual reset bimetallic strip 4. The automatic reset bimetallic strip 3 is in contact with the inner wall of the cover 2. The upper end of the automatic reset bimetallic strip 3 contacts the lower end of the manual reset bimetallic strip 4. The ceramic push rod 5 is located at the center of the upper end of the manual reset bimetallic strip 4. When the temperature sensed by the bimetal strip 3 is at 80°C, the automatic reset bimetal strip 3 automatically expands and deforms; when the temperature sensed by the automatic reset bimetal strip 3 is at 60°C, the automatic reset bimetal strip 3 automatically contracts and resets; when the temperature sensed by the manual reset bimetal strip 4 is at 100°C, the manual reset bimetal strip 4 automatically expands and deforms; the manual reset bimetal strip 4 needs to be manually reset when it is at room temperature; when the automatic reset bimetal strip 3 and the manual reset bimetal strip 4 automatically expand and deform, the middle part of both are pushed upward, and the edges of the automatic reset bimetal strip 3 and the manual reset bimetal strip 4 do not move.
[0020] See also Figure 2 The utility model has a temperature controller with temperature control and temperature limiting functions. The automatic reset bimetal strip 3 and the manual reset bimetal strip 4 are in the initial reset state, the moving contact 11 and the static contact 12 are in contact with each other, the automatic reset bimetal strip 3 and the manual reset bimetal strip 4 are in the expansion and deformation state, the ceramic push rod 5 is pushed upward to separate the moving contact 11 and the static contact 12 from each other, and the manual reset bimetal strip 4 is reset by descending through the reset button 14.
[0021] See also Figure 3 The utility model has a temperature control and temperature limiting function of the thermostat, the lower end of the base 1 is connected to a guide frame 6, one end of the ceramic push rod 5 penetrates the guide frame 6 and the interior of the base 1 and extends upward, the static contact piece 7 is installed on the left side of the base 1 through a plurality of rivets 8, the moving contact piece 9 is installed on the right side of the base 1 through a plurality of rivets 8, one end of the moving contact piece 9 is provided with a spring 10, one end of the spring 10 is provided with a moving contact 11, one end of the static contact piece 7 is provided with a static contact 12, the moving contact 11 and the static contact 12 are in contact with each other, when the temperature is about 80 ℃, the automatic reset bimetallic strip 3 will automatically expand and deform, at this time, the ceramic push rod 5 is forced to push upward, so that the moving contact 11 and the static contact 12 are separated from each other and the power is cut off, when the temperature is 60 ℃, the automatic reset bimetallic strip 3 will automatically shrink and reset, so that the moving contact 11 and the static contact 12 are in contact with each other and energized.
[0022] See also Figure 4The utility model has a thermostat with temperature control and temperature limiting functions. A manual cover plate 13 is provided above the base 1. A reset button 14 is provided at the center of the manual cover plate 13. The reset button 14 extends upward and downward respectively, and one end of the reset button 14 contacts with the spring 10. The reset button 14 and the ceramic push rod 5 are on the same center line. When the automatic reset bimetal 3 fails to work after continuous use, the temperature gradually rises to reach the temperature point of the manual reset bimetal 4. The manual reset bimetal 4 will automatically expand and deform. At this time, the ceramic push rod 5 is forced to push upward again, so that the moving contact 11 and the static contact 12 are separated and powered off. Because the manual reset bimetal 4 cannot be automatically reset at room temperature, the thermostat does not work under the protection of the manual reset bimetal 4, thereby reminding the staff to manually press the reset button 14. The force on the reset button 14 decreases, driving the ceramic push rod 5 to decrease, thereby realizing manual reset.
[0023] Working process of this utility model:
[0024] During the operation of the thermostat with temperature control and temperature limiting functions of the utility model, the premise for using the two sheets at the same time is that the action temperature point of the manual reset bimetallic strip 4 is higher than the temperature point of the automatic reset bimetallic strip 3 by more than 10°C, so as to achieve the effect of double protection. When the temperature of the equipment rises to about 80°C, the automatic reset bimetallic strip 3 will expand and deform due to heat. At this time, the ceramic push rod 5 is forced to push up, so that the moving contact 11 and the static contact 12 are separated from each other and the power is cut off. When the temperature of the equipment drops to 60°C, the automatic reset bimetallic strip 3 will shrink and reset due to the drop in the temperature of the equipment, so that the moving contact 11 and the static contact 12 are in contact with each other and energized. When the automatic reset bimetallic strip 3 When a fault occurs during continuous use and the temperature gradually rises to reach the temperature point of the manual reset bimetallic strip 4, the manual reset bimetallic strip 4 will expand and deform due to the heat. At this time, the ceramic push rod 5 is forced to push up again, so that the moving contact 11 and the static contact 12 are separated from each other and the power is cut off. Because the manual reset bimetallic strip 4 cannot be automatically reset at room temperature, the thermostat does not work under the protection of the manual reset bimetallic strip 4, thereby reminding the staff that the equipment has failed and the reset button 14 must be manually pressed after the fault is eliminated. The force on the reset button 14 decreases, driving the ceramic push rod 5 to decrease, thereby achieving manual reset, which has a double protection effect and avoids dangerous accidents.
[0025] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.
Claims
1. A thermostat with temperature control and temperature limiting functions, characterized in that: The invention comprises a base (1), a connecting cover (2), an automatic reset bimetallic strip (3), a manual reset bimetallic strip (4), and a ceramic push rod (5), wherein the connecting cover (2) is arranged below the base (1), a cavity is formed between the base (1) and the connecting cover (2), the automatic reset bimetallic strip (3) and the manual reset bimetallic strip (4) are located in the cavity, the lower end of the automatic reset bimetallic strip (3) contacts the inner wall of the connecting cover (2), the upper end of the automatic reset bimetallic strip (3) contacts the lower end of the manual reset bimetallic strip (4), and the ceramic push rod (5) Located at the center of the upper end of the manual reset bimetal strip (4), when the temperature sensed by the automatic reset bimetal strip (3) is 80°C, the automatic reset bimetal strip (3) automatically expands and deforms; when the temperature sensed by the automatic reset bimetal strip (3) is 60°C, the automatic reset bimetal strip (3) automatically contracts and resets; when the temperature sensed by the manual reset bimetal strip (4) is 100°C, the manual reset bimetal strip (4) automatically expands and deforms; when the manual reset bimetal strip (4) is at room temperature, it needs to be manually reset.
2. The thermostat with temperature control and temperature limiting functions according to claim 1, characterized in that: The lower end of the base (1) is connected to a guide frame (6), and one end of the ceramic push rod (5) penetrates the guide frame (6) and the interior of the base (1) and extends upward.
3. The thermostat with temperature control and temperature limiting functions according to claim 1, characterized in that: A stationary contact piece (7) is mounted on the left side of the base (1) via a plurality of rivets (8), and a moving contact piece (9) is mounted on the right side of the base (1) via a plurality of rivets (8). A spring piece (10) is provided at one end of the moving contact piece (9), and a moving contact point (11) is provided at one end of the spring piece (10). A stationary contact point (12) is provided at one end of the stationary contact piece (7), and the moving contact point (11) and the stationary contact point (12) are in contact with each other.
4. The thermostat with temperature control and temperature limiting functions as claimed in claim 3, characterized in that: A manual cover plate (13) is arranged above the base (1), and a reset button (14) is arranged at the center of the manual cover plate (13). The reset button (14) extends upward and downward respectively, and one end of the reset button (14) is in contact with the reed (10).
5. The thermostat with temperature control and temperature limiting functions as claimed in claim 4, characterized in that: The reset button (14) and the ceramic push rod (5) are on the same center line.
6. The thermostat with temperature control and temperature limiting functions as claimed in claim 5, characterized in that: When the automatic reset bimetallic strip (3) and the manual reset bimetallic strip (4) are in an initial reset state, the moving contact (11) and the stationary contact (12) are in contact with each other. When the automatic reset bimetallic strip (3) and the manual reset bimetallic strip (4) are in an expanded and deformed state, the ceramic push rod (5) pushes upward to separate the moving contact (11) and the stationary contact (12) from each other, and the manual reset bimetallic strip (4) is lowered and reset by the reset button (14).
Citation Information
Patent Citations
Temperature controller
CN203445061U