Tubular heating resistor with temperature control function

Abstract

The utility model relates to a tube type heating resistor with temperature control, which comprises a combined spiral tube body and a base plate, the combined spiral tube body is arranged on the base plate, the resistor further comprises a plurality of temperature control tubes and a plurality of temperature controllers, the temperature control tubes are arranged on the base plate, the temperature control tubes are contacted with the combined spiral tube body, and the temperature controllers are arranged in the temperature control tubes. According to the utility model, the temperature control tube and the temperature controller are arranged, and the temperature control tube is respectively contacted with the heating tube body outer ring and the heating tube body inner ring, so that full contact of the temperature controller in the temperature control tube can be ensured, and a safety protection device can be timely triggered to cut off a circuit. According to the utility model, a tubular spiral structure is adopted, and the heating tube body outer ring and the heating tube body inner ring are nested together, so that the installation volume of a product can be reduced, and the installation boundary size is reduced. According to the utility model, a plurality of temperature control pipes are adopted, so that different gears of all heating pipe bodies needing temperature protection can be covered, and the safety in use is improved.

Description

Technical Field

[0001] This utility model relates to the field of tubular heating resistor technology, and in particular to a tubular heating resistor with temperature control. Background Technology

[0002] Tubular resistance heaters, as electrical components that convert electrical energy into heat energy, have wide applications in various fields. They are widely used in processes such as smelting, sintering, alloying, annealing, and heat treatment of various materials. Tubular resistance heaters play an important role in the steel, non-ferrous metals, precious metals, rare earth metals, and electronic materials industries. Due to their excellent performance, tubular resistance heaters are widely used in daily life, industrial and agricultural technology, communications, medical care, environmental protection, and many other fields, especially as heating and discharging components in new energy vehicles.

[0003] Tubular resistance heaters typically consist of a metal tube as the outer shell, with spiral heating alloy wires evenly distributed along the central axis inside the tube. The gaps between the wires are filled with compacted magnesium oxide sand, which has good insulating and thermal conductivity. Both ends of the tube are sealed with silicone. When current passes through the heating alloy wires, heat is generated, and this heat is transferred to the object being heated through thermal conduction and radiation.

[0004] However, since heating resistors are usually used at high temperatures, under abnormal operating conditions, such as short circuits or poor cooling, their rising temperature can easily damage surrounding components.

[0005] Utility model patent CN215268769U discloses a tubular heating resistor for automotive applications, comprising a heating element, a mounting chassis, an insulator, and a lead-out rod. The heating element has a spiral structure, with its opening passing through and fixed to the mounting chassis. An insulator is installed at the top of the outer tube of the heating element. The heating element is connected to an external circuit via the lead-out rod. This patent lacks the ability to monitor the resistance temperature and only achieves the heating function.

[0006] Therefore, providing a tubular heating resistor capable of detecting the temperature of the resistor is a technical problem that needs to be solved. Utility Model Content

[0007] The purpose of this invention is to overcome the defects of the existing technology and provide a tubular heating resistor with temperature control.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] According to one aspect of the present invention, a tubular heating resistor with temperature control is provided, comprising a combined spiral tube body and a chassis, wherein the combined spiral tube body is mounted on the chassis, and the resistor further comprises a plurality of temperature control tubes and a plurality of temperature controllers, wherein the temperature control tubes are mounted on the chassis and are in contact with the combined spiral tube body, and the temperature controllers are mounted inside the temperature control tubes.

[0010] As a preferred technical solution, the combined spiral tube body includes an outer ring of the heating tube and an inner ring of the heating tube, wherein the outer ring of the heating tube and the inner ring of the heating tube are made of a heating resistance tube that is spirally shaped along the central axis.

[0011] As a preferred technical solution, the chassis is provided with a heating tube mounting hole, and the lead-out feet of the outer ring and inner ring of the heating tube are installed in the heating tube mounting hole.

[0012] As a preferred technical solution, the resistor further includes ceramic beads, which are installed in the heating tube mounting hole.

[0013] As a preferred technical solution, the chassis is provided with a temperature control tube mounting hole, and the temperature control tube is installed in the temperature control tube mounting hole.

[0014] As a preferred technical solution, the temperature control tube includes a head-closed region, which is in contact with the outer ring of the heating tube and the inner ring of the heating tube, respectively.

[0015] As a preferred technical solution, the temperature control tube is installed on both sides of the chassis.

[0016] As a preferred technical solution, the thermostat is installed inside the thermostat tube through the thermostat tube mounting hole.

[0017] As a preferred technical solution, the temperature controller includes a temperature control sensor and a sensor wiring harness, and the temperature control sensor and the sensor wiring harness are connected.

[0018] As a preferred technical solution, the temperature control sensor is installed in the closed area of ​​the head, and the pins of the sensor harness are led out from the mounting hole of the temperature control tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting up a temperature control tube and a temperature controller, and by having the temperature control tube contact the outer ring of the heating tube and the inner ring of the heating tube respectively, this utility model can ensure that the temperature controller is fully in contact with the temperature control tube so as to trigger the safety protection device to cut off the circuit in a timely manner.

[0021] 2. This utility model adopts a tubular spiral structure, which nests the outer ring of the heating tube and the inner ring of the heating tube together, which can reduce the installation volume of the product and reduce the installation boundary size.

[0022] 3. This utility model adopts multiple temperature control tubes, which can cover different settings of all heating tubes that require temperature protection, increasing safety during use.

[0023] 4. This utility model has a hole in the chassis, and the temperature control tube, the outer ring of the heating tube, and the inner ring of the heating tube pass through the hole in the chassis on the same side and are welded and fixed. This structure can facilitate the optimization of the production process, make the welding process more efficient, and make the welding effect more reliable. At the same time, the reliable welding effect can ensure the sealing of the heating resistor and can work in the environment with liquid circulation. Attached Figure Description

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is an exploded structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the combined spiral tube structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the chassis explosion from one angle of this utility model;

[0028] Figure 5 This is another perspective of the chassis explosion diagram of this utility model;

[0029] Figure 6 This is a schematic diagram of the position and structure of the temperature control tube of this utility model.

[0030] 1. Heating tube body; 2. Chassis; 3. Thermostat; 4. Ceramic bead; 11. Outer ring of heating tube; 12. Inner ring of heating tube; 21. Bottom surface of chassis; 22. Thermostat tube; 23. Thermostat tube mounting hole; 24. Heating tube mounting hole; 31. Temperature sensor; 32. Sensor wiring harness; 221. Head closed area. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0032] Since heating resistors are typically used at high temperatures, under abnormal operating conditions, such as short circuits or poor cooling, their rising temperature can easily damage surrounding components. Current heating resistors only achieve the function of heating and do not achieve temperature control monitoring.

[0033] This invention provides a tubular heating resistor with temperature control. By incorporating a temperature control tube and a temperature controller, and ensuring the temperature control tube contacts both the outer and inner rings of the heating tube, the invention guarantees full contact between the temperature controller and the outer ring, facilitating timely triggering of the safety protection device to cut off the circuit. The invention employs a tubular spiral structure, nesting the outer and inner rings of the heating tube together, reducing the product's installation volume and installation boundary dimensions. The use of multiple temperature control tubes covers all different temperature protection settings of the heating tube, increasing safety during use. The invention features a hole in the chassis through which the temperature control tube, outer ring, and inner ring pass, and are welded together. This structure facilitates production process optimization, making welding more efficient and reliable. Furthermore, the reliable welding ensures the heating resistor's airtightness, allowing it to operate in environments with liquid circulation.

[0034] Example 1

[0035] like Figure 1 , Figure 2 As shown, a temperature-controlled tubular heating resistor includes a combined spiral tube body and a base 2. The combined spiral tube body is mounted on the base 2. The resistor also includes multiple temperature control tubes 22 and multiple temperature controllers 3. The temperature control tubes 22 are mounted on the base 2 and are in contact with the combined spiral tube body. The temperature controllers 3 are installed inside the temperature control tubes 22.

[0036] like Figure 3 As shown, the combined spiral tube body includes an outer ring 11 and an inner ring 12 of the heating tube body, which are made of heating resistance tubes that are spirally arranged along the central axis.

[0037] In this embodiment, there are two temperature control tubes 22, which are mounted on the chassis 2. The temperature control tubes 22 are in contact with the outer ring 11 and the inner ring 12 of the heating tube to monitor the temperature of the outer ring 11 and the inner ring 12 of the heating tube.

[0038] like Figure 4-Figure 6 As shown, the chassis 2 is provided with a heating tube mounting hole 24, and the lead-out feet of the outer ring 11 and the inner ring 12 of the heating tube are installed in the heating tube mounting hole 24.

[0039] The resistor also includes a ceramic bead 4, which is installed inside the heating tube mounting hole 24 and fixed with sealant.

[0040] The chassis 2 is provided with a temperature control tube mounting hole 23, and the temperature control tube 22 is mounted on the temperature control tube mounting hole 23.

[0041] The temperature control tube 22 includes a head-closed region 221, which contacts both the outer ring 11 and the inner ring 12 of the heating tube. A temperature sensor 31 is installed within the head-closed region 221, which is in close contact with both the outer ring 11 and the inner ring 12 for more accurate detection. The temperature control tube 22 is installed on both sides of the chassis 2, separating it to avoid interference.

[0042] The temperature controller 3 is installed inside the temperature control tube 22 through the temperature control tube mounting hole 23. The temperature controller 3 includes a temperature control sensor 31 and a sensor harness 32, which are connected. The temperature control sensor 31 is installed in the head closure area 221, and the pins of the sensor harness 32 are led out from the temperature control tube mounting hole 23. The temperature control sensor 31 detects the temperature of the outer ring 11 and the inner ring 12 of the heating tube in real time, and transmits the temperature signal to the outside of the heating resistor through the sensor harness 32.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A tubular heating resistor with temperature control, comprising a combined spiral tube body and a base (2), wherein the combined spiral tube body is mounted on the base (2), characterized in that, The resistor also includes multiple temperature control tubes (22) and multiple temperature controllers (3). The temperature control tubes (22) are mounted on the chassis (2). The temperature control tubes (22) are in contact with the combined spiral tube body. The temperature controllers (3) are installed inside the temperature control tubes (22).

2. A tubular heating resistor with temperature control according to claim 1, characterized in that, The combined spiral tube body includes an outer ring (11) of the heating tube and an inner ring (12) of the heating tube, which are made of a heating resistance tube that is spiral along the central axis.

3. A tubular heating resistor with temperature control according to claim 2, characterized in that, The chassis (2) is provided with a heating tube mounting hole (24), and the lead-out feet of the outer ring (11) and inner ring (12) of the heating tube are installed in the heating tube mounting hole (24).

4. A tubular heating resistor with temperature control according to claim 3, characterized in that, The resistor also includes a ceramic bead (4), which is installed in the heating tube mounting hole (24).

5. A tubular heating resistor with temperature control according to claim 2, characterized in that, The chassis (2) is provided with a temperature control tube mounting hole (23), and the temperature control tube (22) is installed on the temperature control tube mounting hole (23).

6. A tubular heating resistor with temperature control according to claim 5, characterized in that, The temperature control tube (22) includes a head-closed region (221), which is in contact with the outer ring (11) of the heating tube and the inner ring (12) of the heating tube.

7. A tubular heating resistor with temperature control according to claim 6, characterized in that, The temperature control tube (22) is installed on both sides of the chassis (2).

8. A tubular heating resistor with temperature control according to claim 6, characterized in that, The thermostat (3) is installed inside the thermostat tube (22) through the thermostat tube mounting hole (23).

9. A tubular heating resistor with temperature control according to claim 8, characterized in that, The temperature controller (3) includes a temperature control sensor (31) and a sensor harness (32), and the temperature control sensor (31) and the sensor harness (32) are connected.

10. A tubular heating resistor with temperature control according to claim 9, characterized in that, The temperature control sensor (31) is installed in the head closed area (221), and the pins of the sensor harness (32) are led out from the temperature control tube mounting hole (23).

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