Infrared interference-proof inductive wall lamp

Abstract

This utility model discloses an infrared interference-resistant sensor-type wall lamp, belonging to the technical field of lighting devices. It includes a housing, a lamp plate, and a protective plate. A lampshade is fitted onto one side of the housing, forming a mounting cavity between the lampshade and the housing. The lamp plate is located within the mounting cavity and fixedly connected to the housing. A light-emitting end is located on the side of the lamp plate facing the lampshade. The protective plate is located inside the mounting cavity and has a protective ring surrounding the edge of the light-emitting end. The protective plate consists of a heat-conducting layer and a heat-insulating layer along its thickness, with the heat-insulating layer located on the side of the protective plate facing the lampshade. A sensing element is located on the outside of the protective ring on the lamp plate, with the sensing element close to the heat-insulating layer of the protective plate and the light-emitting end close to the heat-conducting layer of the protective plate. This utility model's wall lamp can achieve on / off control by more accurately sensing human infrared radiation through the sensing element.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, specifically to an infrared interference-resistant sensor wall lamp. Background Technology

[0002] A lamp is a lighting device used to illuminate environments with insufficient light. The advent of lamps has greatly improved people's lives and work. In home environments, lamps are usually controlled by manual switches to turn them on and off. However, lamps installed in public areas are usually equipped with automatic control switches based on factors such as light or infrared radiation. This prevents lamps from remaining constantly lit in areas where no one passes by for extended periods, thus avoiding energy waste. Lamps with the function of automatically switching on and off based on factors such as light or infrared radiation typically require the installation of sensors that detect light or infrared radiation. To avoid interference from the light or infrared radiation generated by the lamp itself during operation, the sensors are usually placed on the outside of the lamp, away from the light-emitting and heat-generating parts of the lamp. Placing the sensors on the outside of the lamp can affect its aesthetics, and the sensitivity of the sensors is also more easily affected by factors such as dust and moisture in the environment.

[0003] Based on the above, Chinese patent document CN223271205U discloses a lamp head structure based on infrared sensing, including a sensing device disposed on the main body of the lamp head. The sensing device includes a housing, and the housing has a mounting surface on the side near the main body of the lamp head. The mounting surface is inclined downward and an infrared component is disposed on the mounting surface. The infrared component includes a small window located in the middle and a large window disposed around the small window. A first infrared sensing unit and a second infrared sensing unit are disposed on the inner side of the small window and the large window respectively.

[0004] The aforementioned patent document discloses a lamp that controls light by sensing the human body with infrared light. The lamp head body and the sensing device for sensing infrared light are set independently, which can avoid the infrared light generated by the lamp head body during the light emission process from interfering with the normal sensing of infrared light by the sensing device. However, the sensing device is set on the outside of the lamp head body, making it more susceptible to the influence of external dust or moisture, which can easily affect the accuracy of the internal infrared components. Therefore, the lamp disclosed in this patent document still has room for improvement. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes an infrared interference-resistant sensor wall lamp, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0006] An infrared interference-resistant sensor wall lamp includes a housing, a lamp plate, and a protective plate. A lamp cover is fitted onto one side of the housing, and an installation cavity is formed between the lamp cover and the housing. The lamp plate is disposed in the installation cavity and fixedly connected to the housing. A light-emitting end is provided on the side of the lamp plate facing the lamp cover.

[0007] The protective plate is located inside the mounting cavity. The protective plate has a protective ring surrounding the edge of the light-emitting end. The protective plate is composed of a heat-conducting layer and a heat-insulating layer in sequence along the thickness direction. The heat-insulating layer is located on the side of the protective plate facing the lampshade.

[0008] The lamp panel has a sensing element on the outside of the protective ring. The sensing element is close to the heat insulation layer of the protective panel, and the light-emitting end is close to the heat-conducting layer of the protective panel.

[0009] As a further technical solution of this utility model, the heat-conducting layer is laid in a grid pattern on the surface of the protective plate, and the heat insulation layer has a reflective layer on the side close to the heat-conducting layer.

[0010] As a further technical solution of this utility model, the outer shell is provided with a heat sink on the side of the lamp board away from the light-emitting end, and the side of the heat sink away from the lamp board is provided with a plurality of heat sinks.

[0011] The heat-conducting layer extends outward from one edge of the protective plate and is fixedly connected to the heat sink.

[0012] As a further technical solution of this utility model, a sealing strip is provided on the side of the outer shell near the lampshade, and the sealing strip extends along the edge of the lampshade.

[0013] As a further technical solution of this utility model, the outer shell is provided with a mounting block on the side away from the lampshade, the mounting block is provided with at least two fixing bolts, the mounting block is provided with a buckle rod on the side near the outer shell, and the outer shell is provided with a groove matching the buckle rod on the side away from the lampshade.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model discloses a wall lamp with switch control based on infrared sensing. The wall lamp senses the infrared rays emitted by the human body through a sensing element, and a protective plate prevents the infrared rays generated when the wall lamp emits light from interfering with the sensing element. When the lamp panel emits light and generates heat through the light-emitting end, the protective plate conducts the heat to the outer shell through a heat-conducting layer, and prevents the heat from being transferred to the side of the protective plate near the sensing element through a heat insulation layer. The protective plate prevents the sensing element from being interfered with by avoiding its own heating and isolating the light-emitting end, which helps the wall lamp to more accurately sense the infrared rays emitted by the human body and realize switch control. Attached Figure Description

[0016] Figure 1This is a structural diagram of an infrared interference-resistant sensor wall lamp. Figure 1 .

[0017] Figure 2 Disassembly diagram of an infrared interference-resistant sensor wall lamp. Figure 1 .

[0018] Figure 3 Disassembly diagram of an infrared interference-resistant sensor wall lamp. Figure 2 .

[0019] Figure 4 This is a cross-sectional view of the protective panel of an infrared interference-resistant sensor wall lamp.

[0020] Figure 5 This is a structural diagram of an infrared interference-resistant sensor wall lamp. Figure 2 .

[0021] The components are: 1-outer shell, 11-lamp cover, 12-heat sink, 13-heat sink fin, 14-sealing strip, 15-slot, 2-lamp board, 21-light-emitting end, 22-sensing element, 3-protective plate, 31-protective ring, 32-heat-conducting layer, 33-heat-insulating layer, 34-reflective layer, 4-mounting block, 41-fixing bolt, 42-clasp rod. Detailed Implementation

[0022] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0023] An infrared interference-resistant sensor wall lamp includes a housing 1, a lamp plate 2, and a protective plate 3. A lamp cover 11 is fitted on one side of the housing 1, and an installation cavity is formed between the lamp cover 11 and the housing 1. The lamp plate 2 is disposed in the installation cavity and fixedly connected to the housing 1. A light-emitting end 21 is provided on the side of the lamp plate 2 facing the lamp cover.

[0024] The protective plate 3 is located inside the mounting cavity. The protective plate 3 is provided with a protective ring 31 surrounding the edge of the light-emitting end 21. The protective plate 3 is composed of a heat-conducting layer 32 and a heat-insulating layer 33 in sequence along the thickness direction. The heat-insulating layer 33 is located on the side of the protective plate 3 facing the lamp cover 11.

[0025] The lamp panel 2 has a sensing element 22 on the outside of the protective ring 31. The sensing element 22 is close to the heat insulation layer 33 of the protective plate 3, and the light-emitting end 21 is close to the heat-conducting layer 32 of the protective plate 3.

[0026] This utility model discloses a wall lamp with switch control based on infrared sensing, referring to... Figure 1 , Figure 2 The wall lamp uses a sensing element 22 to sense the infrared rays emitted by the human body, and a protective plate 3 prevents the infrared rays generated when the wall lamp emits light from interfering with the sensing element 22. The sensing element 22 can more accurately sense the infrared rays of the human body, so that after the wall lamp is installed in a public area, it can only work and emit light when people pass through the area.

[0027] Reference Figure 1 , Figure 2 , Figure 3 The wall lamp of this utility model is mainly composed of an outer shell 1, a lamp plate 2, and a protective plate 3. The outer shell 1 serves as the external protective structure of the wall lamp, mainly used to protect the internal lamp plate 2, protective plate 3, and circuit components such as wires. The lamp plate 2 and protective plate 3 are installed and fixed inside the mounting cavity of the outer shell 1 by threaded nails. The light-emitting end 21 of the lamp plate 2 is equipped with several LED beads. The lamp plate 2 is connected to the external power supply line through the circuit components inside the mounting cavity. The power supply line provides electrical energy to enable the light-emitting end 21 to emit light. At the same time, the lampshade 11 is made of transparent material and is installed and fixed to one side of the outer shell 1 by threaded nails. The light generated by the light-emitting end 21 penetrates the lampshade 11 and shines outward, so that the wall lamp can achieve illumination.

[0028] The sensing element 22 includes a passive infrared sensor and a photoresistor. The passive infrared sensor is mainly used to sense infrared rays emitted by the human body. When the passive infrared sensor senses infrared rays emitted by the human body, it will output a command to turn on the circuit to the control system of the wall lamp. The resistance value of the photoresistor is inversely proportional to the ambient light intensity. It needs to cooperate with a voltage comparator inside the wall lamp. When the ambient light intensity is low, the voltage drop across the photoresistor in the circuit will increase. When the voltage drop across the photoresistor rises to the set threshold of the voltage comparator, the voltage comparator will output a command to turn on the circuit to the control system of the wall lamp. When both the passive infrared sensor and the voltage comparator output commands to turn on the circuit to the control system of the wall lamp, the circuit between the light-emitting end 21 in the lamp panel 2 and the power supply line will be connected, and the light-emitting end 21 will emit light to enable the wall lamp to illuminate.

[0029] It should be noted that the above-mentioned method of controlling the lamp switch by using passive infrared sensors and photoresistors has been disclosed in the prior art. The control method and control principle are common knowledge in the field. For those skilled in the art, the above-mentioned working principle of the wall lamp of this utility model is an application of the prior art. Therefore, the connection method and structure of the internal lamp panel 2 and other structures of the wall lamp will not be described in detail.

[0030] Reference Figure 2 , Figure 3 , Figure 4The protective plate 3 inside the wall lamp prevents the infrared rays generated when the light-emitting end 21 emits light from interfering with the sensing element 22 through the protective ring 31. The protective ring 31 isolates the light-emitting end 21 and the sensing element 22 from each other, so that the light-emitting end 21 is located inside the protective ring 31, while the sensing element 22 is located outside the protective ring 31. The infrared rays emitted by the light-emitting end 21 will not be detected by the sensing element 22 due to the obstruction of the protective ring 31, so that the sensing element 22 can sense the infrared rays of the human body without interference from the light-emitting end 21.

[0031] It should be noted that, referring to Figure 4 , Figure 4 This is a schematic diagram showing the protective plate 3 cut along its thickness. The heat-conducting layer 32 is laid in a grid pattern on the surface of the protective plate 3. The heat-conducting layer 32 is made of materials with good thermal conductivity, such as copper. The heat-conducting layer 32 can conduct the heat generated when the light-emitting end 21 emits light to the outer shell 1, preventing the protective plate 3 from generating obvious infrared rays due to excessive temperature rise. The heat insulation layer 33 is made of materials with good heat insulation properties, such as foam material. The heat insulation layer 33 can prevent the heat in the heat-conducting layer 32 from being transferred to the side of the protective plate 3 near the sensing element 22, thereby preventing the protective plate 3 from generating infrared rays that interfere with the sensing element 22 due to temperature rise. A reflective layer 34 is provided on the side of the heat insulation layer 33 near the heat-conducting layer 32. The reflective layer 34 is formed by coating the side of the heat insulation layer 33 near the heat-conducting layer 32 with reflective material. The reflective layer 34 allows the side of the protective plate 3 near the light-emitting end 21 to reflect most of the light and heat generated by the light-emitting end 21, which helps to reduce the heat absorbed by the protective plate 3 and further prevents the protective plate 3 from generating infrared rays that interfere with the sensing element 22 due to temperature rise.

[0032] As one of the preferred embodiments of this utility model, refer to Figure 3 , Figure 5 The outer casing 1 has a heat sink 12 on the side of the lamp plate 2 away from the light-emitting end 21, and a plurality of heat sinks 13 on the side of the heat sink 12 away from the lamp plate 2. The heat-conducting layer 32 extends outward from one edge of the protective plate 3 and is fixedly connected to the heat sink 12. The heat generated when the light-emitting end 21 emits light is transferred to the heat sink 12 through direct contact. The heat sink 12 increases the contact area with the air through the plurality of heat sinks 13, so that the heat generated when the light-emitting end 21 emits light can be efficiently transferred to the outside air, avoiding heat accumulation in the lamp plate 2 and improving the heat dissipation efficiency of the lamp plate 2. Similarly, the protective plate 3 transfers heat to the heat sink 12 through the heat-conducting layer 32, which can also avoid heat accumulation in the protective plate 3 and improve the heat dissipation efficiency of the protective plate 3.

[0033] As one of the preferred embodiments of this utility model, refer to Figure 2 , Figure 3A sealing strip 14 is provided on the side of the outer shell 1 near the lampshade 11. The sealing strip 14 extends along the edge of the lampshade 11 and is made of materials such as sealing silicone. The sealing strip 14 is set between the edge of the lampshade 11 and the outer shell 1. By sealing the connection gap between the lampshade 11 and the outer shell 1, the sealing performance of the installation cavity is improved. This can prevent dust and moisture from the external environment from entering the installation cavity, which is beneficial to improving the durability of components such as the lamp panel 2 and the sensing element 22 inside the wall lamp.

[0034] As one of the preferred embodiments of this utility model, refer to Figure 5 The outer casing 1 has a mounting block 4 on the side away from the lampshade 11. At least two fixing bolts 41 pass through the mounting block 4. The mounting block 4 has a latching rod 42 on the side near the outer casing 1. The outer casing 1 has a slot 15 that matches the latching rod 42 on the side away from the lampshade 11. The wall lamp is installed and fixed on the wall by the mounting block 4. The specific operation is as follows: the mounting block 4 is fixed to the wall by fixing bolts 41. Then, the slot 15 of the outer casing 1 and the latching rod 42 are interlocked, so that the wall lamp is hung on the mounting block 4. After the wall lamp is installed and fixed on the wall in this way, the wall lamp can be easily removed from the wall for cleaning or maintenance.

[0035] In summary, this utility model discloses a wall lamp with switch control based on infrared sensing. The wall lamp senses the infrared rays emitted by the human body through the sensing element 22, and the protective plate 3 prevents the infrared rays generated when the wall lamp emits light from interfering with the sensing element 22. When the lamp plate 2 emits light and generates heat through the light-emitting end 21, the protective plate 3 conducts the heat to the outer shell 1 through the heat-conducting layer 32, and prevents the heat from being transferred to the side of the protective plate 3 near the sensing element 22 through the heat insulation layer 33. The protective plate 3 prevents the sensing element 22 from being interfered with by avoiding its own heating and isolating the light-emitting end 21, which is conducive to the wall lamp more accurately sensing the infrared rays of the human body through the sensing element 22 to realize switch control.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An inductive wall lamp with infrared interference prevention, comprising an outer shell (1), a lamp panel (2), a protective plate (3), characterized in that, A lampshade (11) is fitted on one side of the outer shell (1), and an installation cavity is formed between the lampshade (11) and the outer shell (1). The lamp plate (2) is located in the installation cavity and is fixedly connected to the outer shell (1). The lamp plate (2) has a light-emitting end (21) on the side facing the lampshade. The protective plate (3) is located inside the mounting cavity. The protective plate (3) is provided with a protective ring (31) surrounding the edge of the light-emitting end (21). The protective plate (3) is composed of a heat-conducting layer (32) and a heat-insulating layer (33) in sequence along the thickness direction. The heat-insulating layer (33) is located on the side of the protective plate (3) facing the lampshade (11). The lamp plate (2) has a sensing element (22) on the outside of the protective ring (31). The sensing element (22) is close to the heat insulation layer (33) of the protective plate (3), and the light-emitting end (21) is close to the heat-conducting layer (32) of the protective plate (3).

2. The infrared intrusion sensing wall light of claim 1, wherein, The heat-conducting layer (32) is laid in a grid pattern on the surface of the protective plate (3), and the heat insulation layer (33) has a reflective layer (34) on the side close to the heat-conducting layer (32).

3. The infrared intrusion sensing wall lamp of claim 1, wherein, The outer casing (1) has a heat sink (12) on the side of the lamp plate (2) away from the light-emitting end (21), and the heat sink (12) has a plurality of heat sinks (13) on the side away from the lamp plate (2). The heat-conducting layer (32) extends outward from one edge of the protective plate (3) and is fixedly connected to the heat dissipation plate (12).

4. The infrared intrusion sensing wall lamp of claim 1, wherein, The outer casing (1) is provided with a sealing strip (14) on the side near the lampshade (11), and the sealing strip (14) extends along the edge of the lampshade (11).

5. The infrared intrusion sensing wall lamp of claim 1, wherein, The outer shell (1) has a mounting block (4) on the side away from the lampshade (11). The mounting block (4) has at least two fixing bolts (41) through it. The mounting block (4) has a buckle rod (42) on the side close to the outer shell (1). The outer shell (1) has a slot (15) that matches the buckle rod (42) on the side away from the lampshade (11).

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