A heat-insulating lamp with a temperature control structure

Abstract

This utility model discloses a heat-insulating lamp with a temperature control structure, including a lamp body, an electrode lamp head, a core column, and a temperature control component. An outer electrode sleeve is fitted onto the outer side of the electrode lamp head, and a core electrode is provided on the inner side. The temperature control component includes a liquid cylinder, a temperature-sensing moving plate, and a ring plug. A thermoplastic fluid is filled inside, and an electrode pin is provided at the top of the temperature-sensing moving plate for contact with the core electrode. In this utility model, a tungsten filament is heated by electricity, and the thermoplastic fluid expands due to heat, pushing the temperature-sensing moving plate axially. When the temperature reaches a set value, the circuit is automatically cut off; after cooling, it is automatically reconnected, achieving temperature self-control without electronic components. This utility model has a compact structure, sensitive response, and features liquid expansion temperature control and power-off protection functions, making it suitable for various heat-insulating applications.

Description

Technical Field

[0001] This utility model relates to the field of heat preservation lamp technology, specifically a heat preservation lamp with a temperature control structure. Background Technology

[0002] Heat lamps, as devices used to provide localized heating or insulation, are widely used in home heating, animal husbandry, and industrial insulation. Existing heat lamps generally generate heat through an electrically powered heating element within the lamp body, and incorporate temperature control mechanisms to achieve automatic on / off or constant temperature functions, thus preventing overheating damage or energy waste.

[0003] In traditional technical solutions, common temperature control structures mainly include the following two types: This type of solution typically places multiple independent temperature sensors at different locations inside or outside the lamp body. The sensing signals are transmitted to the control circuit via wires or circuit boards, and the heating circuit is switched on and off by relays or electronic switches. For example, in typical household heating lamps or livestock heating lamps, thermistors or thermal switches are usually used as temperature sensing elements, distributed in multiple locations within the lamp body to detect temperature changes. While this structure can achieve temperature control, it has the following drawbacks: The large number of sensors, complex wiring, and cumbersome assembly process result in a large overall structure, which is not conducive to miniaturization. Because temperature signals need to be transmitted to the control circuit through wires, there is a response delay and a large thermal inertia; under long-term high temperature or high humidity environments, sensing elements and circuits are susceptible to thermal shock or aging, resulting in low stability and lifespan.

[0004] Another type of existing technology achieves temperature detection and control through thermistor ICs or integrated microcontroller circuits. For example, the signal from a thermistor or thermocouple is input into a microprocessor, and an electronic switch controls the on / off state of the filament to achieve automatic temperature regulation. This type of solution has high control accuracy, but still has the following problems: the circuit design is complex, requiring an additional power supply module to maintain electronic sensing and control, increasing power consumption and cost; the system is susceptible to electromagnetic interference, and is prone to malfunctions or delayed responses under high-power loads; in long-term operating environments, electronic components are prone to failure due to high temperatures or impacts, resulting in poor reliability.

[0005] In summary, existing heat lamps generally suffer from problems such as complex structure, high cost, poor anti-interference, slow thermal response, and limited lifespan in their temperature control design, making it difficult to meet the application scenarios with higher requirements for safety, reliability, and energy efficiency. Therefore, there is an urgent need for a heat lamp with high structural integration, no need for electronic sensors, and capable of reliable adaptive temperature control to overcome the shortcomings of existing technologies. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a heat-preserving lamp with a temperature control structure, including a lamp body, a core column, an electrode lamp head, and a temperature control component. The top of the lamp body is sealed to the bottom surface of the electrode lamp head, the temperature control component is slidably sleeved on the inner side of the electrode lamp head, and the core column is fixed on the bottom surface of the temperature control component. An outer electrode sleeve is sleeved on the outer side of the electrode lamp head, and a core electrode is fixedly sleeved on the inner side, forming a filament power circuit. The temperature control component consists of a liquid cylinder, a temperature-sensing moving plate, and a ring plug. The liquid cylinder is filled with a thermostatic fluid, which expands according to temperature changes to drive the temperature-sensing moving plate axially, thereby driving the electrode pin to automatically connect and disconnect the circuit, thus achieving adaptive temperature control. Through the above structure, this utility model achieves automatic temperature control without the need for electronic sensors, with a simple structure, sensitive response, and high reliability.

[0008] In a preferred embodiment, an outer electrode sleeve is fitted on the outer side of the electrode lamp head, and a core electrode is fixedly fitted on the inner side. The temperature control component is slidably fitted on the inner side of the electrode lamp head, and the core column is fixed to the bottom surface of the temperature control component. A tungsten wire is provided on the surface of the core column, and the two ends of the tungsten wire are electrically connected to the outer electrode sleeve and the electrode pin, respectively, to form a complete heating circuit.

[0009] Technical effect: When the outer electrode sheath is connected to the power supply, the tungsten wire is energized and heats up. The temperature control component senses the temperature change and automatically disconnects or connects the circuit, thereby effectively avoiding overheating and ensuring safe use.

[0010] In a preferred example, the surface of the electrode lamp head is provided with a threaded structure, the shape of the outer electrode sleeve is adapted to the shape of the electrode lamp head, the outer side of the core electrode is fitted with an insulating sealing ring, and the core electrode is located on the axis of the electrode lamp head.

[0011] Technical benefits: The threaded and sleeve-fitting structure facilitates assembly and sealing, while the insulating sealing ring ensures electrical isolation between the outer electrode sleeve and the core electrode, preventing leakage or short circuits and improving system safety and stability.

[0012] In a preferred example, the outer periphery of the temperature-sensing moving disk slides in contact with the inner side of the electrode lamp head, and its bottom surface is provided with several fins. The temperature-sensing moving disk, fins and ring plug are integrally formed and are made of a high thermal conductivity metal material.

[0013] Technical benefits: The fins increase the heat exchange area and enhance the temperature control response speed, while the integrated metal structure improves thermal conductivity and durability.

[0014] In a preferred example, a liquid groove is formed on the bottom surface of the liquid cylinder, and the surface of the ring plug body slides against the inner side of the liquid groove and is provided with a piston ring.

[0015] Technical benefits: The piston rings, in conjunction with the liquid groove, improve sealing, prevent leakage due to thermal expansion and shrinkage, and ensure smooth movement of the piston ring body during expansion and contraction.

[0016] In a preferred example, the top surface of the ring plug has several annular grooves facing the inside of the hydraulic cylinder.

[0017] Technical benefits: The annular groove increases the contact area of ​​the thermally expanding liquid, improves the efficiency of liquid thermal expansion, and ensures that the temperature control components operate sensitively and stably.

[0018] In a preferred example, a guide hole is opened on the inner side of the cylinder at the axis, and the outer periphery of the electrode pin slides against the inner side of the guide hole.

[0019] Technical benefits: The guide hole ensures that the temperature-sensing moving plate and the ring plug move smoothly along the axial direction, preventing deviation and jamming, and improving reliability.

[0020] In a preferred example, the thermal expansion fluid is kerosene or alcohol, which is used to expand in volume during heating to drive the temperature-sensing moving plate and the ring plug to achieve axial movement, and to shrink in volume and automatically reset during cooling.

[0021] Technical benefits: This liquid expansion temperature controller requires no electronic components, has high reliability and long lifespan, and responds quickly. It can achieve cyclic self-control, significantly simplifying the structure and reducing manufacturing costs. The beneficial effects achieved by this utility model are as follows: 1. In this utility model, an integrated temperature control component is adopted, in which the liquid cylinder, temperature sensing disc and ring plug are set as a whole inside the electrode lamp head. The circuit disconnection is achieved by liquid expansion drive. There is no need for distributed wiring or multi-point sensing structure, which makes the structure more compact and simple, with low assembly difficulty, higher heat resistance and long-term stability, and significantly improved service life and reliability.

[0022] 2. In this utility model, the principle of liquid expansion temperature control is adopted. When the temperature rises, the expansion of the liquid in the cylinder pushes the temperature-sensing moving plate and the ring plug to move axially, thereby realizing the automatic connection and disconnection of the circuit. It does not require electronic sensing elements and complex control circuits, thus fundamentally avoiding the risks of electromagnetic interference, control delay and electronic component failure. At the same time, it realizes passive adaptive temperature control, which is safe, reliable and energy-efficient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the electrode lamp head according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the surface structure of the temperature-sensing moving disk according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the ring plug structure according to an embodiment of the present invention; Figure 5This is a schematic diagram of a hydraulic cylinder structure according to an embodiment of the present invention.

[0024] Figure label: 100. Lamp body; 110. Core column; 200. Electrode lamp holder; 210. Outer electrode sleeve; 220. Core electrode; 221. Insulating sealing ring; 300. Temperature control component; 310. Liquid cylinder; 320. Temperature sensing disc; 330. Ring plug body; 311. Liquid tank; 312. Guide hole; 321. Fin; 322. Electrode pin. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a heat-insulating lamp with a temperature control structure.

[0028] Combination Figures 1-5 As shown, this utility model provides a heat-insulating lamp with a temperature control structure, including a lamp body 100, a core column 110, an electrode lamp head 200, and a temperature control component 300. The top of the lamp body 100 is sealed to the bottom surface of the electrode lamp head 200, and the temperature control component 300 is slidably sleeved on the inner side of the electrode lamp head 200. The core column 110 is fixed to the bottom surface of the temperature control component 300. An outer electrode sleeve 210 is sleeved on the outer side of the electrode lamp head 200, and a core electrode 220 is fixedly sleeved on the inner side of the electrode lamp head 200. The temperature control component 300 includes a liquid cylinder 310, a temperature-sensing moving plate 320, and an annular plug 330 fixed to the top surface of the temperature-sensing moving plate 320. The annular plug 330 is slidably sleeved on the inner side of the liquid cylinder 310, and the liquid cylinder 310 is filled with a thermal expansion fluid that can expand according to temperature changes. The top surface of the temperature-sensing moving plate 320 is provided with an electrode pin 322 that abuts against the core electrode 220. The surface of the core column 110 is provided with a tungsten wire, and the two poles of the tungsten wire are electrically connected to the outer electrode sleeve 210 and the end of the electrode pin 322, respectively, thereby forming a heating circuit that generates heat and achieves the function of keeping warm.

[0029] In a preferred embodiment, the surface of the electrode lamp head 200 is provided with a threaded structure, and the surface shape of the outer electrode sleeve 210 is adapted to the outer shape of the electrode lamp head 200; an insulating sealing ring 221 is sleeved on the outer side of the core electrode 220 to form electrode isolation between the outer electrode sleeve 210 and the core electrode 220; the core electrode 220 is located on the axis of the electrode lamp head 200, thereby improving the overall insulation performance and assembly stability.

[0030] In a preferred example, the outer periphery of the temperature-sensing moving disk 320 is in sliding contact with the inner side of the electrode lamp head 200. The bottom surface of the temperature-sensing moving disk 320 is provided with a plurality of fins 321. The temperature-sensing moving disk 320, the fins 321 and the ring plug body 330 are integrally formed structures and are made of high thermal conductivity metal components to improve temperature sensing efficiency and enhance thermal response speed.

[0031] In a preferred embodiment, the bottom surface of the liquid cylinder 310 is provided with a liquid groove 311, the surface of the ring plug 330 slides against the inner side of the liquid groove 311 and is provided with a piston ring, which is used to improve the sealing of the liquid groove 311 and the ring plug 330, and ensure that the thermally expanding liquid will not leak during the expansion and contraction process.

[0032] In a preferred embodiment, the top surface of the ring plug 330 is provided with a plurality of annular grooves facing the inner side of the liquid cylinder 310 to increase the contact area with the thermally expanding liquid, thereby improving the thermal response sensitivity.

[0033] In a preferred example, the inner side of the hydraulic cylinder 310 is provided with a guide hole 312 located at the axis, and the outer periphery of the electrode pin 322 slides against the inner side of the guide hole 312 to guide the axial movement of the temperature sensing disc 320 and the ring plug 330, so as to ensure stable and precise operation.

[0034] In a preferred example, the thermal expansion fluid is either kerosene or alcohol, used to thermally expand during the heating process and drive the temperature-sensing moving plate 320 and the ring plug 330 to achieve axial movement, thereby realizing temperature adaptive control.

[0035] Working principle and usage process of this utility model: This invention achieves adaptive temperature regulation through the synergistic action of the electrode lamp head 200, the temperature control component 300, and the core column 110. In use, the electrode lamp head 200 is connected to the power supply via the outer electrode sleeve 210. Simultaneously, the core electrode 220 forms another pole with the electrode pin 322 in the temperature control component 300. The two ends of the tungsten filament on the surface of the core column 110 are electrically connected to the outer electrode sleeve 210 and the electrode pin 322, respectively, thus forming a heating circuit. When the power is turned on, the tungsten filament generates heat, producing a warming effect on the surrounding space.

[0036] During the heating process, the temperature control component 300 inside the electrode lamp head 200 senses temperature changes. The thermoplastic fluid in the liquid cylinder 310 expands as the temperature rises, pushing the annular plug 330 within the liquid cylinder 310 to move axially. This, in turn, drives the temperature-sensing moving plate 320, which is fixedly connected to it, to move axially downwards, causing the top electrode pin 322 of the temperature-sensing moving plate 320 to gradually separate from the core electrode 220. When the ambient temperature reaches the set value, the thrust generated by the expansion of the thermoplastic fluid moves the temperature-sensing moving plate 320 to the circuit-disconnected position, automatically cutting off the energization of the tungsten wire and preventing overheating. When the ambient temperature decreases, the thermoplastic fluid contracts, and the annular plug 330 rises under the negative pressure within the liquid cylinder 310. The temperature-sensing moving plate 320 rises, causing the electrode pin 322 to reconnect to the core electrode 220, and the tungsten wire is energized again for heating, thus achieving cyclic temperature control.

[0037] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat-insulating lamp with a temperature control structure, characterized in that, include: The lamp body (100), the core column (110), the electrode lamp head (200), and the temperature control assembly (300) are provided. The top of the lamp body (100) is sealed to the bottom surface of the electrode lamp head (200), and the temperature control assembly (300) is slidably sleeved on the inner side of the electrode lamp head (200). The core column (110) is fixed to the bottom surface of the temperature control assembly (300). An outer electrode sleeve (210) is sleeved on the outer side of the electrode lamp head (200), and a core electrode (220) is fixedly sleeved on the inner side of the electrode lamp head (200). The temperature control assembly (300) includes a liquid cylinder (3... 10) A temperature-sensing moving plate (320) and an annular plug (330) fixed on the top surface of the temperature-sensing moving plate (320). The annular plug (330) is slidably sleeved on the inner side of the liquid cylinder (310), and the liquid cylinder (310) is filled with a thermal expansion fluid that can expand according to temperature changes. The top surface of the temperature-sensing moving plate (320) is provided with an electrode pin (322) that abuts against the core electrode (220). The surface of the core column (110) is provided with a tungsten wire, and the two ends of the tungsten wire are electrically connected to the ends of the outer electrode sleeve (210) and the electrode pin (322), respectively.

2. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The surface of the electrode lamp head (200) is provided with a threaded structure, and the surface shape of the outer electrode sleeve (210) is adapted to the outer shape of the electrode lamp head (200); an insulating sealing ring (221) is sleeved on the outer side of the core electrode (220) to form electrode isolation between the outer electrode sleeve (210) and the core electrode (220); the core electrode (220) is located on the axis of the electrode lamp head (200).

3. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The outer periphery of the temperature-sensing moving plate (320) slides in contact with the inner side of the electrode lamp head (200). The bottom surface of the temperature-sensing moving plate (320) is provided with a number of fins (321). The temperature-sensing moving plate (320), fins (321) and ring plug (330) are integrally formed structures and are made of high thermal conductivity metal components.

4. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The bottom surface of the liquid cylinder (310) is provided with a liquid groove (311), and the surface of the ring plug (330) slides against the inner side of the liquid groove (311) and is provided with a piston ring to improve the sealing of the liquid groove (311) and the ring plug (330).

5. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The top surface of the ring plug (330) is provided with several annular grooves facing the inside of the liquid cylinder (310) to increase the contact area with the thermally expanding liquid.

6. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The inner side of the liquid cylinder (310) is provided with a guide hole (312) located at the axis. The outer periphery of the electrode pin (322) slides against the inner side of the guide hole (312) to guide the axial movement of the temperature sensing disc (320) and the ring plug (330).

7. A heat-insulating lamp with a temperature control structure according to claim 1, characterized in that, The thermal expansion fluid is either kerosene or alcohol, and is used to thermally expand during the heating process and drive the temperature-sensing moving plate (320) and the ring plug (330) to achieve axial movement.

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