Human body induction down lamp

Abstract

The utility model provides a human body induction down lamp which comprises a first shell body, a second shell body and a light source. The diffusion plate is arranged on the open side of the first shell; the light-emitting plate is arranged on the inner side of the first shell, a light-emitting part is arranged on the light-emitting plate, and light emitted by the light-emitting part penetrates through the diffusion plate to be diffused outwards; the radar module is arranged between the light-emitting plate and the diffusion plate, the radar module emits detection waves, and the detection waves penetrate through the diffusion plate to be emitted outwards. According to the human body induction down lamp, the radar module is integrated in the down lamp, the consistency of the induction position and the lighting position is improved, and the down lamp is lightened more timely.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting equipment technical field especially relates to a human response down lamp. BACKGROUND

[0002] With the development of lighting technology, the application of various intelligent lighting systems is more and more widely. The existing human body sensing device is connected with the down lamp through wired or wireless mode, the human body sensing device controls the down lamp to light, realizes the lighting effect of lighting when people come and extinguishing when people go.

[0003] Generally, the human body sensing device and the down lamp are installed respectively, the down lamp is generally installed on the ceiling board, if the sensing device controls the down lamp one by one, a plurality of sensing devices need to be set, which brings inconvenience to installation, if one sensing device controls a plurality of down lamps, a series of problems such as untimely triggering and inflexible triggering range are caused. INVENTION CONTENTS

[0004] The utility model provides a human response down lamp, wherein the detection wave can penetrate the diffusion plate and emit outward, so as to ensure the normal work of the radar module; and since the diffusion plate has the property of being opaque, the radar module can be hidden inside the diffusion plate, and the user cannot see the radar module from the outside of the down lamp; based on this, the radar module is integrated in the down lamp, and the inconvenience caused by the separate installation of the traditional down lamp and the human body sensing device is solved.

[0005] Another object of the utility model is to provide a human response down lamp, wherein each down lamp is equipped with a radar module, the triggering range is more flexible, the consistency of the sensing position and the light position is improved, and each down lamp lights more timely, and the user experience is upgraded.

[0006] Another object of the utility model is to provide a human response down lamp, wherein the radar module is used to sense the human body, can detect the slight movement of the human body in the static state, improves the detection accuracy, and enables the radar module to be hidden inside the diffusion plate.

[0007] Another object of the utility model is to provide a human response down lamp, wherein the radar module is supported by the transmission support, the height of the radar module is determined by the length of the transmission support, by reasonably designing the length of the transmission support, the position of the radar module in the vertical direction can be controlled, so as to ensure that the detection range meets the requirements.

[0008] Another object of the utility model is to provide a human response down lamp, wherein the radar module is suspended on the light-emitting plate, and the influence of the light-emitting plate on the detection wave is reduced.

[0009] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the radar module is suspended on the light-emitting plate, so that the two are not in contact, and the heat of the light-emitting part is difficult to conduct to the radar module.

[0010] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the light-emitting plate is provided with the first transmission hole, so that the flexibility of the arrangement of the radar module is improved, the position of the radar module in the horizontal direction is not restricted by the light-emitting plate, the radar module is arranged at the corresponding position in the center of the human body induction down lamp, and the detection range and the illumination range tend to be consistent.

[0011] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the first distance L1 is controlled to be 9mm-16mm, so that the detection range meets the requirement, and the radar module does not present obvious dark shadow on the diffusion plate.

[0012] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the transmission support part is not in contact with the light-emitting plate, so that in the assembly, the lower end of the transmission support part can be fixed to the power supply assembly first, then the transmission support part is passed through the first transmission hole from bottom to top, and finally the radar module is fixed to the upper end of the transmission support part, the assembly process can improve the assembly efficiency, and is favorable for guaranteeing the position accuracy and the perpendicularity of the assembly of the transmission support part, and then the position accuracy of the radar module is guaranteed.

[0013] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the transmission support part is not in contact with the light-emitting plate, so that the heat of the light-emitting plate can be prevented from conducting to the radar module.

[0014] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the transmission support part can elastically shake in the first transmission hole, and is avoided from being in contact with the light-emitting plate when shaking, so that the transmission support part can restore the initial form after the shaking is finished, and drives the radar module to restore to the initial position, and the position accuracy of the radar module is maintained.

[0015] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the first transmission hole and the transmission support part are left with sufficient gap, and in the assembly process, the transmission support part can be guaranteed not to collide with the first transmission hole when passing through the first transmission hole, so that the transmission support part is prevented from deforming or tilting, and the position accuracy of the radar module is guaranteed.

[0016] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the radar arrangement board only has a support position, can reduce the space of support position occupation, makes the area of radar arrangement board smaller, thereby reduces the shelter of radar arrangement board to light, simultaneously, single support position makes that light emitting plate only needs to open a first transmission hole, and the aperture of first transmission hole can be smaller, reduces the influence to the layout of light emitting piece on light emitting plate.

[0017] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the support position does not occupy the space of radar arrangement board center area, and the electronic element arrangement of radar module is more compact, and then reduces the area of radar arrangement board, reduces the shelter of radar arrangement board to light, avoids the radar module to present the dark shadow on the diffusion plate.

[0018] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the transmission support piece adopts the advantage that 1, the needle row has enough rigidity, can stably support radar module, makes radar module keep good position accuracy, 2, the needle row has good conductivity, can stably transmit electric signal, 3, the needle row has plastic head, and the plastic head abuts on circuit board not only can realize vertical positioning, but also can guarantee the vertical between needle row and circuit board, thereby guaranteeing the position accuracy of radar module, 4, the needle row is thin, and when assembling, it is convenient to pass through the first transmission hole, improves the assembly efficiency.

[0019] The utility model discloses another purpose lies in providing a human body response down lamp, wherein through the vertical positioning of first plastic head and second plastic head, the accurate control of the distance between radar arrangement board and power board is realized, and the first distance L1 between radar arrangement board and diffusion plate meets the requirement.

[0020] The utility model discloses another purpose lies in providing a human body response down lamp, wherein first plastic head and second plastic head ensure that the parallelism between radar arrangement board and power board meets the requirement, so that the detection direction of radar module is consistent with the irradiation direction of human body response down lamp.

[0021] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the radar arrangement board and light emitting plate are all white circuit boards, to enhance the light reflection ability of radar arrangement board and light emitting plate, avoid the radar module to present the dark shadow on the diffusion plate.

[0022] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the light emitting piece is arranged around the first projection figure, so that the light is uniformly reflected inside the first shell, and the light output of diffusion plate is uniform.

[0023] The utility model discloses another purpose lies in providing a human body response down lamp, wherein the radar drive chip is arranged on the side of radar arrangement board away from the diffusion plate, to avoid the radar drive chip to present the dark shadow on the diffusion plate.

[0024] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the radar module will not light up the light emitting part even if detecting a person when the ambient brightness is greater than a certain value, so as to save electric energy.

[0025] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the first shell adopts metal material, so as to facilitate heat dissipation.

[0026] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the power module is integrated in the human body induction down lamp, so that external power driving is not needed, installation is more convenient, the power module is directly connected with the radar module, signal transmission is more stable, and the structure is more compact.

[0027] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the first shell is integrally formed by aluminum alloy, so that the partition plate and the side wall of the first shell are seamlessly connected, heat is better conducted from the partition plate to the side wall, and the heat dissipation capacity of the first shell is improved; and the heat dissipation capacity of the first shell is further improved due to the excellent heat conduction rate of the aluminum alloy material.

[0028] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the light emitting plate, the insulating pad and the partition plate are attached, heat is conducted from the light emitting plate to the partition plate, and then the first shell side wall dissipates heat to the outside.

[0029] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the light emitting plate, the insulating pad, the first shell and the second shell are fixedly connected only through the first screw, the structure is simplified, and the assembly efficiency is greatly improved.

[0030] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the second shell adopts plastic material, so that the wireless signal is not shielded, and the strength of the wireless signal is ensured.

[0031] Another purpose of the utility model lies in providing a human body induction down lamp, wherein the wireless communication board is vertically inserted in the power board, so as to reduce the space occupied by the wireless communication board in the power board, improve the space utilization rate of the power board, vertically erect the communication antenna of the wireless communication module, avoid the shielding effect of the power board on the communication antenna, and make the wireless signal strength better.

[0032] To achieve the above at least one purpose, the utility model provides a human response down lamp, include: first casing, one side open, diffusion plate, set up in the open side of first casing, light emitting plate, set up in the inside of first casing, be provided with light emitting piece on light emitting plate, the light of light emitting piece transmits diffusion plate and spreads to the outside, radar module, set up between light emitting plate and diffusion plate, the detection wave that radar module sends, the detection wave transmits diffusion plate and emits to the outside,

[0033] Wherein, still include power module and transmission support, power module sets up in the side of light emitting plate away from radar module, light emitting plate electric connection in power module, transmission support is used for realizing power module and radar module electric connection, light emitting plate is equipped with first transmission hole, transmission support passes through first transmission hole, power module passes through transmission support and limits the position of radar module, with radar module is suspended in light emitting plate.

[0034] Further, the radar module includes a radar arrangement plate, the first spacing between the radar arrangement plate and the diffusion plate is controlled at 9mm-16mm.

[0035] In some embodiments, the transmission support does not contact the light emitting plate.

[0036] Further, the transmission support has elasticity, in the first horizontal direction, the width of the first transmission hole is greater than 3 / 2 of the width of the transmission support, in the second horizontal direction, the width of the first transmission hole is greater than 3 / 2 of the width of the transmission support, so that the transmission support can be elastically shaken in the first transmission hole; wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0037] In some embodiments, the radar module includes a radar arrangement plate, the support position of the transmission support corresponds to the support position of the radar arrangement plate, the support position is supported by the transmission support, so that the radar arrangement plate can be suspended and work on the light emitting plate; wherein, the radar arrangement plate only has a support position.

[0038] Further, the support position is arranged at one end of the radar arrangement plate, the other end of the radar arrangement plate is suspended, and the transmission support supports the support position through a plurality of support points arranged side by side.

[0039] In some embodiments, the power module comprises a power board, the radar module comprises a radar arrangement board, the transmission support is configured as a pin array, one end of the pin array is inserted into the power board, and the other end of the pin array is inserted into the radar arrangement board, the power board is electrically connected to the radar arrangement board through the pin array and defines the position of the radar arrangement board.

[0040] Further, the pin array comprises a first plastic head and a second plastic head, the first plastic head abuts a first surface of the radar arrangement board for longitudinal positioning between the pin array and the radar arrangement board, and the second plastic head abuts a second surface of the power board for longitudinal positioning between the pin array and the power board, wherein the first surface is a surface of the radar arrangement board facing the power board, and the second surface is a surface of the power board facing the radar arrangement board.

[0041] In some embodiments, the radar module comprises a radar arrangement board, the radar arrangement board and the light-emitting board are both white circuit boards, the direction from the radar arrangement board to the light-emitting board is a projection direction, the radar arrangement board projects a first projection pattern on the surface of the light-emitting board, the first projection pattern is located in the central region of the light-emitting board, and the light-emitting element is arranged around the first projection pattern; the radar module further comprises a transmitting sheet for emitting detection waves and a receiving sheet for receiving detection waves, the transmitting sheet and the receiving sheet are laid on a surface of the radar arrangement board facing the diffusion board; the radar module further comprises a radar driving chip, the radar driving chip is arranged on a surface of the radar arrangement board facing away from the diffusion board; and a brightness sensor is arranged on the surface of the radar arrangement board facing the diffusion board, ambient light passes through the diffusion board and irradiates on the brightness sensor, so that the brightness sensor can detect ambient brightness.

[0042] In some embodiments, a first accommodating cavity is formed between the diffusion board and the first shell, the light-emitting board and the radar module are arranged inside the first accommodating cavity, and the first shell is made of metal; the human body sensing down lamp further comprises a second shell connected to the first shell, a second accommodating cavity is formed between the first shell and the second shell, and the power module is arranged inside the second accommodating cavity.

[0043] Further, the first shell comprises a partition plate arranged opposite to the open side, the partition plate covers the second shell to form the second accommodating cavity between the partition plate and the second shell; the first shell is integrally formed of aluminum alloy, an insulating pad is arranged between the light-emitting board and the partition plate, and the light-emitting board, the insulating pad and the partition plate are attached to each other.

[0044] Further, at least one first screw is fixedly connected to the second shell through the light-emitting plate, the insulating pad and the partition plate, so as to realize the fixed connection between the light-emitting plate, the insulating pad, the first shell and the second shell.

[0045] In some embodiments, the second shell is integrally formed by plastic material, the second accommodating cavity is provided with a wireless communication module, the wireless communication module comprises a wireless communication board, the power supply module comprises a power supply board, and the wireless communication board is vertically inserted into the power supply board.

[0046] Further, the insulating pad is provided with a second transmission hole, the partition plate is provided with a third transmission hole, the transmission support passes through the third transmission hole, the second transmission hole and the first transmission hole, the edge of the light-emitting plate is provided with a first wiring gap, the insulating pad is provided with a second wiring hole, the partition plate is provided with a third wiring hole, the light-emitting plate is connected with a light-emitting control line, the light-emitting control line passes through the first wiring gap, the second wiring hole and the third wiring hole and is connected to the power supply board, and the power supply board controls the brightness of the light-emitting element through the light-emitting control line.

[0047] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. The above-mentioned application contents can be combined arbitrarily, and these and other purposes of the present application will be fully embodied through the following detailed description and drawings.

[0048] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0050] Figure 1 is a schematic diagram of the overall structure of the human body sensing down lamp of an embodiment of the present application;

[0051] Figure 2 is an exploded view of the human body sensing down lamp of an embodiment of the present application;

[0052] Figure 3 is a schematic diagram of the structure of the human body sensing down lamp after the disassembly of the diffusion plate of an embodiment of the present application;

[0053] Figure 4 is a sectional view of the human body sensing down lamp according to an embodiment of the present application;

[0054] Figure 5 is a sectional view of the human body sensing down lamp according to an embodiment of the present application;

[0055] Figure 6 is an assembly schematic view of the radar module, the power board and the transmission support according to an embodiment of the present application;

[0056] Figure 7 is a front view of the radar module according to an embodiment of the present application;

[0057] Figure 8 is a connection schematic view of the radar module and the transmission support according to an embodiment of the present application;

[0058] Figure 9 is a front view of the light-emitting plate according to an embodiment of the present application;

[0059] Figure 10 is an assembly schematic view of the transmission support, the light-emitting element, the insulating pad, the first shell and the power board according to an embodiment of the present application;

[0060] Figure 11 is a sectional view of the human body sensing down lamp according to an embodiment of the present application;

[0061] Figure 12 is an assembly schematic view of the second shell, the power module and the first shell according to an embodiment of the present application;

[0062] Figure 13 is a structural schematic view of the power module according to an embodiment of the present application;

[0063] Figure 14 is a front view of the power module and the second shell according to an embodiment of the present application;

[0064] Figure 15 is an assembly schematic view of the radar module, the power board and the transmission support according to an embodiment of the present application;

[0065] Figure 16 is an exploded view of the human body sensing down lamp according to an embodiment of the present application;

[0066] Figure 17 is a sectional view of the human body sensing down lamp according to an embodiment of the present application. DETAILED DESCRIPTION

[0067] In the description of the utility model, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and do not require the utility model to be necessarily constructed and operated in a particular orientation, and therefore should not be understood as limiting the utility model.

[0068] In the description of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0069] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connection" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0070] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the technical personnel in the art, when the combination of the technical solutions appears contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist, also not within the protection scope required by the utility model.

[0071] In the related prior art, in the linkage use scene of the human body sensing device and the down lamp, the human body sensing device and the down lamp are usually installed respectively, and the down lamp is installed on the ceiling panel. If the sensing device controls the down lamp one by one, many sensing devices need to be set, which brings inconvenience to installation; if one sensing device controls multiple down lamps, it will lead to a series of problems such as untimely triggering, inflexible triggering range, etc., for example: the sensing position and the light position are not consistent, which leads to untimely lighting of the down lamp; the sensing range may not cover all the down lamp lighting areas, which leads to the user being too far away from the sensing device to light the down lamp nearby, and the triggering range is not flexible; the sensing device has high requirements for the installation position, and if the installation position is improper, it will appear not triggering or false triggering.

[0072] To solve the above problems, the utility model provides a kind of human body sensing down lamp 100, please refer toFigures 1-17 The human body sensing down lamp 100 will be specifically illustrated. Specifically, as shown in the drawings, Figures 1-4 The human body sensing down lamp 100 includes: a first shell 1, which is open on one side; a diffusion plate 2, which is arranged on the open side of the first shell 1; a light-emitting plate 3, which is arranged on the inner side of the first shell 1, and the light-emitting plate 3 is provided with a light-emitting element 31, and the light emitted by the light-emitting element 31 is diffused outward through the diffusion plate 2; and a radar module 4, which is arranged between the light-emitting plate 3 and the diffusion plate 2, and the radar module 4 emits detection waves, and the detection waves are emitted outward through the diffusion plate 2.

[0073] The first shell 1 can be understood as a combination of multiple shells, or as an independent and complete shell. The light-emitting plate 3 can be understood as a substrate carrying the light-emitting element 31. The open side of the first shell 1 can be understood as the side of the down lamp that emits light outward. Since the diffusion plate 2 is generally made of non-metallic materials such as acrylic (PMMA), polycarbonate (PC), and polystyrene (PS), it will not shield the detection waves of the radar module 4, so that the detection waves can penetrate the diffusion plate 2 and be emitted outward. Since the diffusion plate 2 has the characteristics of light transmission and opacity, the radar module 4 is hiddenly arranged on the inner side of the diffusion plate 2, so that the user cannot see the radar module 4 from the outside of the down lamp.

[0074] Based on this, the human body sensing down lamp provided by the embodiment of the present disclosure integrates the radar module 4 in the down lamp, solving the problem of installation inconvenience caused by the need to separately install the traditional down lamp and the human body sensing device; and each down lamp is independently provided with a radar module 4, the triggering range is more flexible, and the consistency of the sensing position and the light-on position is improved, each down lamp is lit more timely, and the user experience is upgraded.

[0075] The traditional infrared sensor can only detect the movement or limb movement of the human body, such as walking, waving arms, sitting down, etc., and cannot sense the human body when it is stationary; and the lens of the infrared sensor must be exposed to the outside to work normally, which causes the infrared sensor to be unable to be integrated in the down lamp. The radar module 4 is used to sense the human body in the embodiment of the present application, which can detect the slight movement of the human body in the stationary state, and improves the detection accuracy; for example, the radar module 4 of the present embodiment can detect the user's breathing, heartbeat, etc. The radar module 4 can be hidden on the inner side of the diffusion plate 2, and the user cannot see the radar module 4 from the outside of the down lamp, realizing the integration of the radar module 4 and the down lamp.

[0076] As Figure 4As shown, the first shell 1 is made of metal material, the inventor found that the first shell 1 will have a shielding effect on the detection wave, resulting in the detection range of the radar module 4 being reduced, if the radar module 4 is arranged on the light-emitting plate 3, the distance between the radar module 4 and the diffusion plate 2 will be too far, resulting in the detection range being too small, and the inside of the light-emitting plate 3 is paved with metal, which will also affect the detection wave, resulting in the working performance of the radar module 4 being reduced. In addition, the light-emitting element 31 generates a large amount of heat, and the PIN corner temperature can reach more than 80℃ when the light-emitting element 31 is working, if the radar module 4 is arranged on the light-emitting plate 3, the heat will be conducted from the light-emitting plate 3 to the radar module 4, which will affect the service life of the radar module 4.

[0077] Therefore, in some embodiments, as shown in the drawings, Figures 2-5 As shown, the human sensing down lamp 100 further comprises a power module 5 and a transmission support 6, the power module 5 is arranged on the side of the light-emitting plate 3 away from the radar module 4, the light-emitting plate 3 is electrically connected to the power module 5; the transmission support 6 is used to realize the electrical connection between the power module 5 and the radar module 4; the light-emitting plate 3 is provided with a first transmission hole 32, the transmission support 6 passes through the first transmission hole 32, and the power module 5 defines the position of the radar module 4 through the transmission support 6, so that the radar module 4 is suspended on the light-emitting plate 3.

[0078] The transmission support 6 can be understood as a component capable of transmitting electrical signals and having a certain supporting capacity, which has a certain rigidity and at the same time has electrical conductivity, so that the transmission support 6 can realize the electrical connection between the radar module 4 and the power module 5 while supporting the radar module 4. The first transmission hole 32 is a through hole, the radar module 4 transmits detection signals (such as high-low level signals and / or bus data) to the power module 5 through the transmission support 6, the power module 5 controls the light-emitting element 31 to work according to the detection signals of the radar module 4, for example, in the case that the detection signals represent that there is a person in the environment, the brightness of the light-emitting element 31 is controlled to a specified light-emitting brightness, realizing the light-on when a person comes; and in the case that the detection signals represent that there is no person in the environment, the brightness of the light-emitting element 31 is controlled to zero, realizing the light-off when a person leaves.

[0079] The radar module 4 is not in contact with the light-emitting plate 3, and there is a certain distance between the two, so as to realize that the radar module 4 is suspended on the light-emitting plate 3.

[0080] The position of the radar module 4 being defined by the power module 5 can be understood as that the power module 5 connects the radar module 4 through the transmission support 6, and when the transmission support 6 does not shake, the relative position between the radar module 4 and the power module 5 is fixed.

[0081] As shown in the drawings, Figure 4As shown, the radar module 4 is supported by the transmission support 6, the height of the radar module 4 is determined by the length of the transmission support 6, by reasonably designing the length of the transmission support 6, the position of the radar module 4 in the vertical direction can be controlled to ensure that the detection range meets the requirements. Since the radar module 4 is suspended from the light-emitting plate 3, the influence of the light-emitting plate 3 on the detection wave is reduced. And because the radar module 4 is suspended from the light-emitting plate 3, there is no contact between the two, and the heat of the light-emitting element 31 is difficult to conduct to the radar module 4.

[0082] It is worth noting that the first transmission hole 32 of the light-emitting plate 3 has the advantage of improving the flexibility of the arrangement of the radar module 4, so that the position of the radar module 4 in the horizontal direction is not constrained by the light-emitting plate 3, so as to arrange the radar module 4 at the position corresponding to the center of the human body sensing down lamp 100, so that the detection range tends to be consistent with the illumination range. Wherein, the detection range is as shown in Figure 4 As shown, the detection range forms a detection angle in the vertical direction, in an embodiment, the detection angle is 138°.

[0083] It should be noted that, Figure 4 The detection range shown is only for illustration, and the purpose is to show the relationship between the radar module and the detection range, and the actual detection range may deviate slightly from the illustrated detection range.

[0084] The power module 5 includes a power board 51 and electronic components disposed on the power board 51, in Figure 5 and Figure 6 , the electronic components on the power board 51 are not shown, and the specific structure of the power module 5 is as shown in Figure 13 and Figure 14 .

[0085] As shown in Figure 3 and Figure 5 , the inner wall of the first shell 1 is provided with an annular clamping groove 11 around the open side. The diffusion plate 2 is configured as a circular thin plate structure, the diffusion plate 2 is clamped in the annular clamping groove 11, and the diffusion plate 2 closes the open side of the first shell 1.

[0086] As shown in Figure 4As shown, the inventor found that the distance between the radar module 4 and the diffusion plate 2 is reduced, which can increase the detection range, but when the distance between the radar module 4 and the diffusion plate 2 reaches a certain range, the radar module 4 will block part of the light, resulting in a dark shadow on the diffusion plate 2, causing the diffusion plate 2 to emit light unevenly. Therefore, in the embodiment of the utility model, the radar module 4 includes a radar arrangement plate 41, and the first spacing L1 between the radar arrangement plate 41 and the diffusion plate 2 is controlled to be 9mm-16mm. So that the detection range meets the requirements, and the radar module 4 will not present obvious dark shadow on the diffusion plate 2. Wherein, the radar arrangement plate 41 can be understood as a circuit board for arranging the radar module.

[0087] In some embodiments, as shown in Figure 3 and Figure 5 The transmission support 6 is not in contact with the light-emitting plate 3, so that during assembly, the lower end of the transmission support 6 can be fixed to the power supply assembly first, then the transmission support 6 is passed through the first transmission hole 32 from bottom to top, and finally the radar module 4 is fixed to the upper end of the transmission support 6. This assembly process can improve the assembly efficiency and is beneficial to ensure the position accuracy and perpendicularity of the transmission support 6, thereby ensuring the position accuracy of the radar module 4. Specifically, the first transmission hole 32 has a mounting gap, which ensures that the transmission support 6 can pass through smoothly, and the transmission support 6 is not in contact with the light-emitting plate 3, thereby avoiding deformation or tilting of the transmission support 6 and ensuring the position accuracy of the radar module 4. Furthermore, thanks to the non-contact between the transmission support 6 and the light-emitting plate 3, heat conduction from the light-emitting plate 3 to the radar module 4 can be prevented.

[0088] Further, as shown in Figure 9 The transmission support 6 has elasticity, and in the first horizontal direction, the width of the first transmission hole 32 is greater than 3 / 2 of the width of the transmission support 6, and in the second horizontal direction, the width of the first transmission hole 32 is greater than 3 / 2 of the width of the transmission support 6, so that the transmission support 6 can elastically shake in the first transmission hole 32, and avoid contact with the light-emitting plate 3 during shaking, thereby enabling the transmission support 6 to recover to the initial shape after shaking and driving the radar module 4 to recover to the initial position, thereby maintaining the position accuracy of the radar module 4. At the same time, thanks to the sufficient gap between the first transmission hole 32 and the transmission support 6, during the assembly process, the transmission support 6 can be ensured not to collide with the first transmission hole 32 when passing through the first transmission hole 32, thereby avoiding deformation or tilting of the transmission support 6 and ensuring the position accuracy of the radar module 4.

[0089] The first horizontal direction is perpendicular to the second horizontal direction. In an example embodiment, when the first transmission hole 32 is rectangular, the first horizontal direction is the long side direction of the rectangle, and the second horizontal direction is the short side direction of the rectangle; when the first transmission hole 32 is elliptical, the first horizontal direction is the long axis direction of the ellipse, and the second horizontal direction is the short axis direction of the ellipse.

[0090] In some embodiments, as shown in Figure 6 and Figure 8 The radar arrangement plate 41 forms a support position 411 at a corresponding position of the transmission support 6, and the support position 411 is supported by the transmission support 6, so that the radar arrangement plate 41 is operatively suspended on the light-emitting plate 3; wherein the radar arrangement plate 41 has only one support position 411.

[0091] In the embodiments of the present disclosure, the support position 411 can be understood as a region where the radar arrangement plate 41 is supported by the transmission support 6, for example Figure 8 the position marked by the dashed line box in

[0092] In the embodiments, the radar arrangement plate 41 has only one support position 411, which can reduce the space occupied by the support position 411, so that the area of the radar arrangement plate 41 is smaller, thereby reducing the occlusion of light. In addition, the single support position 411 enables the light-emitting plate to have only one first transmission hole 32, and the aperture of the first transmission hole 32 can be smaller, thereby reducing the influence on the layout of the light-emitting element 31 on the light-emitting plate 3. The operatively suspended can be understood as that the support position 411 is supported while also serving the function of electrical connection, so that the radar arrangement plate 41 is in conduction with the transmission support 6.

[0093] Further, as shown in Figure 7 and Figure 8 To improve the space utilization of the radar arrangement plate 41, the embodiments set the support position 411 at one end of the radar arrangement plate 41, and the other end of the radar arrangement plate 41 is suspended, so that the support position 411 does not occupy the space in the central region of the radar arrangement plate 41, the electronic elements of the radar module 4 are arranged more compactly, thereby reducing the area of the radar arrangement plate 41, reducing the occlusion of light by the radar arrangement plate 41, and avoiding the radar module 4 from presenting a dark shadow on the diffusion plate 2.

[0094] Further, the transmission support 6 supports the support sites 411 through a plurality of support points arranged side by side to improve the connection stability between the radar arrangement board 41 and the transmission support 6. In specific embodiments, the transmission support 6 includes a plurality of signal transmission pins 611 arranged side by side, the support sites 411 are provided with first jacks 412 at positions corresponding to the signal transmission pins 611, and pads are arranged at positions of the first jacks 412. The signal transmission pins 611 are inserted into the first jacks 412 and are fixed by welding. Each signal transmission pin 611 forms a support point, which improves the support stability while ensuring stable signal transmission.

[0095] Exemplarily, the first jacks 412 are arranged along the edge of the radar arrangement board 41.

[0096] Exemplarily, the number of the first jacks 412 is six, and the number of the signal transmission pins 611 is five.

[0097] In some embodiments, as shown in Figure 5 and Figure 6 The power supply module 5 includes a power supply board 51, and the transmission support 6 is configured as a pin header 61. One end of the pin header 61 is inserted into the power supply board 51, and the other end is inserted into the radar arrangement board 41. The power supply board 51 is electrically connected to the radar arrangement board 41 through the pin header 61 and defines the position of the radar arrangement board 41. The pin header 61 has the following advantages, for example, but not limited to:

[0098] 1. The pin header 61 has sufficient rigidity to stably support the radar module 4, so that the radar module 4 maintains good position accuracy.

[0099] 2. The pin header 61 has good electrical conductivity to stably transmit electrical signals.

[0100] 3. The pin header 61 has a plastic head that abuts against the circuit board, which not only realizes longitudinal positioning, but also ensures the verticality between the pin header 61 and the circuit board, thereby ensuring the position accuracy of the radar module 4.

[0101] 4. The pin header 61 is relatively thin, which facilitates passing through the first transmission hole 32 during assembly and improves assembly efficiency.

[0102] Further, as shown in Figure 6As shown, the pin header 61 includes a first plastic head 612 and a second plastic head 613. The first plastic head 612 abuts against the first surface of the radar arrangement plate 41 for longitudinal positioning between the pin header 61 and the radar arrangement plate 41. The second plastic head 613 abuts against the second surface of the power board 51 for longitudinal positioning between the pin header 61 and the power board 51. The first surface is the side of the radar arrangement plate 41 facing the power board 51, and the second surface is the side of the power board 51 facing the radar arrangement plate 41. In this embodiment, the longitudinal positioning by the first plastic head 612 and the second plastic head 613 achieves accurate control of the distance between the radar arrangement plate 41 and the power board 51, ensuring that the first distance L1 between the radar arrangement plate 41 and the diffuser plate 2 meets the requirements.

[0103] And, as Figure 8 As shown, the first plastic head 612 abuts against the first surface of the radar arrangement plate 41. Since the upper surface of the first plastic head 612 is a horizontal plane, the surface contact ensures that the pin header 61 is perpendicular to the radar arrangement plate 41. Similarly, the second plastic head 613 abuts against the second surface of the power board 51 to ensure that the pin header 61 is perpendicular to the power board 51, thereby ensuring the positional accuracy of the radar arrangement plate 41 and ensuring that the parallelism between the radar arrangement plate 41 and the power board 51 meets the requirements, so that the detection direction of the radar module 4 is consistent with the illumination direction of the human body induction downlight 100.

[0104] Furthermore, such as Figure 6 As shown, the pin header 61 includes multiple signal transmission pins 611 arranged side by side. A first plastic head 612 and a second plastic head 613 are respectively disposed at the upper and lower ends of each signal transmission pin 611, fixing each pin 611 in place. The radar arrangement plate 41 has a first socket 412 at the corresponding position of each signal transmission pin 611, and the power board 51 has a second socket 511 at the corresponding position of each signal transmission pin 611. The upper end of each signal transmission pin 611 is inserted into the first socket 412 and welded in place, while the lower end of each signal transmission pin 611 is inserted into the second socket 511 and welded in place, ensuring stable conductivity and connection between the radar arrangement plate 41 and the power board 51.

[0105] In some embodiments, the pin header 61 can be a single-layer double-plastic pin header 61 directly, or it can be formed by welding two single-layer single-plastic pin headers 61 end to end.

[0106] In another embodiment of this utility model, the transmission support 6 may also be a rigid wire 62, specifically, as shown in the example below. Figure 15As shown, the transmission support 6 includes multiple rigid wires 62 of equal length, arranged side by side. Each rigid wire 62 is covered with an insulating sheath 63 of equal length. The upper end of the insulating sheath 63 abuts against the radar arrangement plate 41 for longitudinal positioning between the two; the lower end of the insulating sheath 63 abuts against the power board 51 for longitudinal positioning between the two, thereby achieving longitudinal positioning between the radar arrangement plate 41 and the power board 51. The upper end of the rigid wire 62 is inserted into the radar arrangement plate 41 and welded to it, and the lower end is inserted into the power board 51 and welded to it, thereby achieving electrical connection between the radar arrangement plate 41 and the power board 51. After welding, a jig is used to fine-tune the position and level of the radar arrangement plate 41 so that the positional accuracy and level of the radar arrangement plate 41 meet the requirements. The rigid wire 62 can be made of single-strand copper wire, which has good conductivity and a certain rigidity, and can stably support the radar module 4.

[0107] In some embodiments, such as Figure 5 As shown, both the radar arrangement plate 41 and the light-emitting plate 3 are white circuit boards to enhance their reflectivity and prevent the radar module 4 from casting a shadow on the diffuser plate 2. Furthermore, an insulating pad 8, also white, is provided between the light-emitting plate 3 and the first housing 1.

[0108] Furthermore, such as Figure 9 As shown, with the direction from the radar arrangement plate 41 to the light-emitting plate 3 as the projection direction, the radar arrangement plate 41 projects onto the surface of the light-emitting plate 3 to form a first projection pattern 33. The first projection pattern 33 is located in the central region of the light-emitting plate 3, and the light-emitting elements 31 are arranged around the first projection pattern 33, so that the light is uniformly reflected inside the first housing 1, making the light emitted by the diffuser plate 2 uniform. The first projection pattern 33 has already been... Figure 9 The central area of ​​the light-emitting plate 3 is indicated by a dashed box. The central area can be understood as an area near the center, not specifically the center location; any area near the center of the light-emitting plate 3 can be considered the central area. In one exemplary embodiment, the light-emitting element 31 can be multiple LED beads arranged dispersedly around the first projection pattern 33; in another exemplary embodiment, the light-emitting element 31 can also be a ring-shaped light strip arranged around the first projection pattern 33.

[0109] Furthermore, the light-emitting element 31 is not provided within the first projected pattern 33.

[0110] like Figures 6-8As shown, the radar module 4 further comprises a transmitting sheet 42 for transmitting detection waves and a receiving sheet 43 for receiving detection waves, the transmitting sheet 42 and the receiving sheet 43 are laid on the side of the radar arrangement plate 41 facing the diffusion plate 2; wherein the transmitting sheet 42 serves as the transmitting antenna of the radar module 4, and transmits detection waves at certain time intervals, and the detection waves are reflected back by the human body or the object in the environment. The receiving sheet 43 serves as the receiving antenna of the radar module 4, and receives the reflected detection waves, and the radar driving chip 44 judges whether there is a moving human body or object in the detection range based on the Doppler principle.

[0111] In an embodiment, as shown in Figure 7 , the radar module 4 adopts a one-transmitting and two-receiving antenna design, that is, the number of transmitting sheets 42 is one, and the number of receiving sheets 43 is two, and the two receiving sheets 43 are located at the end of the radar arrangement plate 41 away from the pin row 61, and the spacing between the two receiving sheets 43 is 4.3mm, and the transmitting sheet 42 is arranged at the position close to the side edge between the receiving sheet 43 and the pin row 61. This embodiment adopts a one-transmitting and two-receiving antenna design, which can improve the anti-interference performance of the radar module 4, and through phase difference analysis of the two receiving antennas, the target positioning accuracy can be improved, and the problem of blind area missing detection can be reduced. In an embodiment, the radar module adopts a one-transmitting and two-receiving radar module of the EDQ15K model of Yitian Technology Co., Ltd., and the transmitting frequency of the radar wave is 24GHz.

[0112] As shown in Figure 8 , the radar module 4 comprises a radar driving chip 44, which is arranged on the side of the radar arrangement plate 41 away from the diffusion plate 2, so as to avoid the radar driving chip 44 from presenting a shadow on the diffusion plate 2.

[0113] Further, as shown in Figure 7 and Figure 5 , the side of the radar arrangement plate 41 facing the diffusion plate 2 is provided with a brightness sensor 45, and the ambient light transmits through the diffusion plate 2 to irradiate the brightness sensor 45, so that the brightness sensor 45 can detect the ambient brightness. Thus, when the ambient brightness is greater than a certain value, the radar module 4 will not light up the light emitting piece 31 even if a person is detected, so as to save power. The brightness sensor 45 can be a photoresistor or other electronic element capable of detecting brightness.

[0114] In some embodiments, as shown in Figure 4 and Figure 5 , a first containing cavity 12 is formed between the diffusion plate 2 and the first shell 1, the light emitting plate 3 and the radar module 4 are arranged inside the first containing cavity 12, and the first shell 1 adopts a metal material to facilitate heat dissipation.

[0115] The human body sensing down lamp 100 further comprises a second shell 7 connected with the first shell 1, a second accommodating cavity 71 is formed between the first shell 1 and the second shell 7, and the power supply module 5 is arranged inside the second accommodating cavity 71. In this embodiment, the power supply module 5 is integrated inside the human body sensing down lamp 100, and no external power supply drive is needed, so that the installation is more convenient, and the power supply module 5 is directly connected with the radar module 4, so that the signal transmission is more stable, and the structure is more compact.

[0116] Further, as shown in Figure 5 and Figure 12 , the first shell 1 comprises a partition plate 13 arranged opposite to the open side, the partition plate 13 covers the second shell 7 to form the second accommodating cavity 71 between the partition plate 13 and the second shell 7; wherein the partition plate 13 is arranged opposite to the open side, which means that the partition plate 13 is located on the side of the first shell 1 away from the open side, and the plate surface of the partition plate faces the open side. The second shell 7 is configured in a barrel-shaped structure, and the partition plate 13 is arranged on the opening side of the second shell 7 to form the second accommodating cavity 71 inside the second shell 7.

[0117] Further, as shown in Figure 10 and Figure 11 , the first shell 1 is integrally formed by aluminum alloy, so that the partition plate 13 is seamlessly connected with the side wall of the first shell 1, which is beneficial to better heat conduction from the partition plate 13 to the side wall, thereby improving the heat dissipation capacity of the first shell 1. Moreover, due to the excellent heat conduction rate of the aluminum alloy material, the heat dissipation capacity of the first shell 1 is further improved.

[0118] Further, an insulating pad 8 is arranged between the light-emitting plate 3 and the partition plate 13, and the light-emitting plate 3, the insulating pad 8 and the partition plate 13 are attached, which is beneficial to heat conduction from the light-emitting plate 3 to the partition plate 13, and then heat dissipation to the outside through the side wall of the first shell 1. Further, heat-conducting silicone grease is coated between the light-emitting plate 3 and the insulating pad 8, and between the insulating pad 8 and the partition plate 13, so as to improve the heat conduction performance.

[0119] Further, the insulating pad 8 has a circular bottom wall and an insulating side wall extending upward from the edge of the circular bottom wall, the circular bottom wall is clamped between the light-emitting plate 3 and the partition plate 13, and the insulating side wall surrounds the light-emitting plate 3.

[0120] Further, as shown in Figure 11As shown, at least one first screw 34 is fixedly connected to the second shell 7 through the light-emitting plate 3, the insulating pad 8 and the partition plate 13, and the fixed connection between the light-emitting plate 3, the insulating pad 8, the first shell 1 and the second shell 7 can be achieved only by the first screw 34, thereby simplifying the structure and greatly improving the assembly efficiency.

[0121] In the above embodiment, the electronic elements on the power board 51 are not shown. Figure 11

[0122] Further, as shown in the drawings, the first screw 34 is provided with a first mounting hole 35, and the two first screws 34 are respectively arranged through the corresponding first mounting holes 35, so that the two first screws 34 can generate a positioning effect on the light-emitting plate 3, thereby ensuring the position accuracy of the first transmission hole 32. Figure 9

[0123] Further, as shown in the drawings, the insulating pad 8 is provided with a second mounting hole 81 at the position corresponding to the first screw 34, and the two first screws 34 are respectively arranged through the corresponding second mounting holes 81, so that the two first screws 34 can generate a positioning effect on the insulating pad 8; the partition plate 13 is provided with a third mounting hole 131 at the position corresponding to the first screw 34, and the two first screws 34 are respectively arranged through the corresponding third mounting holes 131, so that the two first screws 34 can generate a positioning effect on the partition plate 13. Figure 11 Figure 12 Further, as shown in the drawings, the second shell 7 is provided with a first connecting column 72 at the position corresponding to the first screw 34, and the first screw 34 is connected to the first connecting column 72, so that the positioning and fixed connection between the light-emitting plate 3, the insulating pad 8, the first shell 1 and the second shell 7 can be achieved only by the first screw 34, thereby simplifying the structure and greatly improving the assembly efficiency.

[0124] Further, as shown in the drawings, the partition plate 13 is provided with a positioning recess 132 at the position corresponding to the first connecting column 72, and the first connecting column 72 is embedded in the positioning recess 132, so that the end face of the first connecting column 72 abuts against the end wall of the positioning recess 132, thereby achieving the longitudinal positioning between the first shell 1 and the second shell 7, and improving the positioning accuracy between the first shell 1 and the second shell 7 by fine processing of the positioning recess 132, so as to ensure the position accuracy of the radar module 4. Figure 11 Figure 12

[0125] ​​​​​Further, as shown in Figure 12 the side of the first shell 1 extends an arc-shaped positioning wall 14 towards the second shell 7, the arc-shaped positioning wall 14 surrounds the side of the second shell 7 for radial positioning of the second shell 7. The side wall of the second shell 7 is provided with a positioning groove 74 at the open end, and the partition plate 13 is provided with a positioning rib (not shown in the figure) protruding at the corresponding position of the positioning groove 74, the positioning rib is embedded in the positioning groove 74 to achieve circumferential positioning between the second shell 7 and the first shell 1, thereby ensuring the position accuracy of the radar module 4. It is worth mentioning that during assembly, the positioning rib circumferentially positions the second shell 7 to facilitate the accurate screwing of the first screw 34 into the first connecting column 72, thereby improving assembly efficiency.

[0126] In some embodiments, as shown in Figures 12-14 the second shell 7 is integrally formed of plastic material, and the second accommodating cavity 71 is provided with a wireless communication module 54. The use of plastic material for the second shell 7 does not shield the wireless signal, thereby ensuring the strength of the wireless signal. The wireless communication module 54 includes a wireless communication board 541, and the power supply module 5 includes a power supply board 51. The wireless communication board 541 is vertically inserted into the power supply board 51 to reduce the space occupied by the wireless communication board 541 on the power supply board 51, thereby improving the space utilization of the power supply board 51. The communication antenna 542 of the wireless communication module 54 is vertically erected to avoid the shielding effect of the power supply board 51 on the communication antenna 542, thereby improving the strength of the wireless signal. The wireless communication board 541 is hollowed out at the position corresponding to the communication antenna 542 to avoid the shielding effect of the wireless communication board 541 on the wireless signal.

[0127] As shown in Figure 6 and Figure 4 the power supply board 51 carries strong current circuits and weak current circuits, and is provided with a plug-in slot 514. The wireless communication board 541 is vertically inserted into the plug-in slot 514 and is fixedly welded to the back of the power supply board 51.

[0128] Further, since the first shell 1 is made of aluminum alloy material, the first shell 1 has a shielding effect on the wireless signal. In order to weaken the shielding effect of the first shell 1, as shown in Figure 12 the arc-shaped positioning wall 14 of the first shell 1 is not circumferentially surrounded, but is provided with a shielding prevention notch 15 on both sides. The wireless communication module 54 is arranged at the position corresponding to one of the shielding prevention notches 15 to weaken the shielding effect of the arc-shaped positioning wall 14. The communication antenna 542 of the wireless communication module 54 is directed outward (as shown in Figure 13 to further increase the strength of the wireless signal.

[0129] Further, as shown in Figure 10As shown, the insulating pad 8 has a second transmission hole 82, and the partition plate 13 has a third transmission hole 133. The transmission support 6 passes through the third transmission hole 133, the second transmission hole 82, and the first transmission hole 32. The shape of the second transmission hole 82 is the same as that of the first transmission hole 32, but its size is slightly smaller than that of the first transmission hole 32. A first inlay wall 83 extends downward around the edge of the second transmission hole 82, and the first inlay wall 83 is embedded in the third transmission hole 133. The transmission support 6 is isolated from the third transmission hole 133 by the first inlay wall 83 to prevent the transmission support 6 from contacting the first housing 1.

[0130] like Figure 6 As shown, the transmission support 6 is perpendicular to the power board 51 and the radar arrangement plate 41. The first socket 412 of the radar arrangement plate 41 is located directly above the second socket 511 of the power board 51. Figure 10 As shown, the first socket 412, the first transmission hole 32, the second transmission hole 82, the third transmission hole 133, and the second socket 511 are distributed on a vertical line.

[0131] Furthermore, such as Figure 10 As shown, the edge of the light-emitting plate 3 has a first wiring notch 36, the insulating pad 8 has a second wiring hole 84, and the partition plate 13 has a third wiring hole 134. The light-emitting plate 3 is connected to a light-emitting control line (not shown in the figure). The light-emitting control line passes through the first wiring notch 36, the second wiring hole 84, and the third wiring hole 134 and is connected to the power board 51. The power board 51 controls the brightness of the light-emitting element 31 through the light-emitting control line. In one embodiment, the light-emitting element 31 is a dual-color LED, the light-emitting control line consists of three wires, and the power board 51 is provided with a light driving unit. The light driving unit is electrically connected to the light-emitting control line and controls the brightness and color temperature of the light-emitting element 31 through the light-emitting control line.

[0132] The light-emitting board 3 has three first welding holes 37 at one end near the first wiring notch 36, and the power board 51 has three second welding holes 512 at the position directly opposite the third wiring hole 134. One end of the light-emitting control line is welded to the first welding hole 37, and the other end is welded to the second welding hole 512.

[0133] The edge of the second wiring hole 84 extends downward to form a second inlaid wall 85 which is embedded in the third wiring hole 134. The first inlaid wall 83 and the second inlaid wall 85 are used to coarsely position the insulating pad 8 and the partition plate 13 in the horizontal direction, and the positioning is not accurate, which is to facilitate the first screw 34 to pass through the second mounting hole 81 and the third mounting hole 131, and to improve the assembly efficiency.

[0134] The structure of the power module 5 is shown in Figure 13 and Figure 14 The power module 5 includes a power board 51 and electronic components arranged on the power board 51. The power board 51 carries strong current circuits and weak current circuits. The power module 5 converts household alternating current into weak current to provide power for the weak current circuits and the light emitting member 31. The power board 51 is provided with two third welding holes 513 at the end away from the second welding hole 512. The power line 52 is inserted into the second shell 7 from the outside of the second shell 7. The power line 52 is divided into a zero line and a live line inside the second shell 7, and the zero line and the live line are welded to the two third welding holes 513 respectively. The side wall of the second shell 7 is provided with a wiring through hole, and the power line 52 passes through the wiring through hole. The power line 52 is provided with a rubber anti-loose head 521 inside the second shell 7, and the size of the rubber anti-loose head 521 is larger than the size of the wiring through hole, so as to avoid the power line 52 from being separated from the second shell 7 outwardly. The second shell 7 is provided with anti-loose buckles 75 on both sides of the rubber anti-loose head 521, and the anti-loose buckles 75 are clamped on both sides of the rubber anti-loose head 521 to fix the rubber anti-loose head 521.

[0135] In Figure 13 and Figure 14 , only a part of the electronic components on the power board 51 are shown, and all the electronic components are not shown.

[0136] As shown in Figure 4 and Figure 6 , the power board 51 is provided with two fourth mounting holes 53, and the second shell 7 is provided with second connecting columns 73 at the positions corresponding to the fourth mounting holes 53. The second connecting columns 73 abut against the lower surface of the power board 51, and the second screws 531 pass through the fourth mounting holes 53 to be connected to the second connecting columns 73, so that the power board 51 is fixedly connected to the second shell 7. It is worth noting that the two fourth mounting holes 53 are arranged at the positions close to the edges of the two ends of the power board 51, so that the distance between the two fourth mounting holes 53 is large, the positioning accuracy of the power board 51 in the horizontal direction is improved, and the positioning accuracy of the radar module 4 is improved.

[0137] In some embodiments, the human body sensing down lamp 100 is installed in a ceiling hole of a ceiling plate, and the open side of the first shell 1 is arranged downwardly. As shown in Figure 1As shown, the open side of the first shell 1 extends radially outwardly to abut against a wall 17, the wall 17 surrounds the first shell 1, and the side wall of the first shell 1 is riveted on both sides with mounting arms 16, the mounting arms 16 extend away from the abutment wall 17 and are inclined outwardly. The mounting arms 16 are elastic, and when the human body sensing down lamp 100 is installed, the mounting arms 16 are first squeezed and contracted radially, and then loaded into the ceiling hole from bottom to top, the abutment wall 17 abuts against the lower surface of the ceiling plate, and the mounting arms 16 are popped out to both sides after entering the ceiling hole, so that the mounting arms 16 are clamped in the ceiling hole, thereby achieving clamping and fixing of the first shell 1 and the ceiling plate.

[0138] In another embodiment of the present application, as shown in Figure 16 and Figure 17 The human body sensing down lamp 100 provided by the present embodiment is different from the human body sensing down lamp 100 provided by the Figures 1-14

[0139] 1. The first accommodating cavity 12 is further provided with a light reflecting cylinder 9, the light reflecting cylinder 9 is located between the insulating pad 8 and the diffusion plate 2, the light reflecting cylinder 9 is arranged around the periphery of the diffusion plate 2, and is used for reflecting light and eliminating shadows near the edge of the diffusion plate 2.

[0140] 2. The third mounting hole 131 of the partition plate 13 is enlarged in hole diameter, and the third mounting hole 131 is no longer provided with the positioning recess 132 at the bottom. The second mounting hole 81 of the insulating pad 8 extends downwardly to a third inlaid wall 86 around the circumference, the third inlaid wall 86 passes through the third mounting hole 131 from top to bottom and is sleeved on the first connecting column 72, and the first screw 34 passes through the first mounting hole 35, the second mounting hole 81 and the third inlaid wall 82 and is connected to the first connecting column 72. The third inlaid wall 86 is used for isolating the first screw 34 from the side wall of the third mounting hole 131, so as to avoid contact between the first screw 34 and the first shell 1.

[0141] 3. The insulating pad 8 is provided with an avoiding groove 87 at the corresponding position of the mounting arm 16 on both sides, the avoiding groove 87 vertically penetrates the upper and lower ends of the insulating pad 8, and is used for avoiding the rivet of the mounting arm 16 during assembly, thereby improving assembly efficiency.

[0142] Further, the light reflecting cylinder 9 is configured as a cylinder with a large upper part and a small lower part, the thickness of the side wall of the light reflecting cylinder 9 is less than 1 mm, and the light reflecting cylinder 9 is integrally formed by using white PC material. The upper edge of the light reflecting cylinder 9 is outwardly and horizontally folded to form a clamping eave, and the clamping eave is annular, as shown in Figure 17 The clamping eave is clamped into the clamping groove 11 of the first shell 1, and at the same time, the periphery of the diffusion plate 2 is clamped into the clamping groove 11 together with the clamping eave, and the diffusion plate 2 abuts against the upper surface of the clamping eave.

[0143] ​In addition, it should be noted that the above embodiments can be combined with each other, and for the same or similar concepts or processes, some embodiments can no longer be described, that is, the technical solutions disclosed in the latter (recorded in the order of the text) embodiments should include the technical solutions recorded in this embodiment and the technical solutions in all the embodiments before this embodiment.

[0144] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A human sensor downlight, characterized by, The application relates to a radar module. The radar module comprises a first shell, a diffusion plate, a light-emitting plate, a radar module and a power module. The first shell is open on one side. The diffusion plate is arranged on the open side of the first shell. The light-emitting plate is arranged on the inner side of the first shell, and the light-emitting plate is provided with a light-emitting element.

2. The human-response tube lamp according to claim 1, wherein The light-emitting element emits light which is diffused outward through the diffusion plate.

3. The human body sensing tube lamp according to claim 1, wherein, The radar module is arranged between the light-emitting plate and the diffusion plate.

4. The human body sensing tube lamp according to claim 3, characterized in that The radar module emits detection waves which are transmitted outward through the diffusion plate.

5. The human body sensing tube lamp according to claim 4, characterized in that The radar module comprises a radar arrangement plate.

6. The human body sensing tube lamp according to claim 3, wherein, The first interval between the radar arrangement plate and the diffusion plate is controlled to be 9-16 mm.

7. The man body sensing tube lamp according to claim 6, wherein, The power module is arranged on the side of the light-emitting plate which is away from the radar module.

8. The human presence-responsive tube lamp according to any of claims 3-7, wherein, The light-emitting plate is electrically connected to the power module.

9. The human body sensing tube lamp according to claim 8, characterized in that The transmission support is used to electrically connect the power module and the radar module. The light-emitting plate is provided with a first transmission hole. The transmission support passes through the first transmission hole. The power module defines the position of the radar module through the transmission support. The radar module is suspended on the light-emitting plate. The transmission support does not contact the light-emitting plate. The transmission support is elastic. In a first horizontal direction, the width of the first transmission hole is greater than 3 / 2 of the width of the transmission support. In a second horizontal direction, the width of the first transmission hole is greater than 3 / 2 of the width of the transmission support. The first horizontal direction is perpendicular to the second horizontal direction. The radar arrangement plate is provided with a support position corresponding to the transmission support. The support position is supported by the transmission support. The radar arrangement plate is suspended on the light-emitting plate. The support position is arranged on one end of the radar arrangement plate. The other end of the radar arrangement plate is suspended. The transmission support supports the support position through a plurality of support points arranged side by side. The power module comprises a power plate. The radar module comprises a radar arrangement plate. The transmission support is configured as a pin. One end of the pin is inserted into the power plate. The other end of the pin is inserted into the radar arrangement plate. The power plate is electrically connected to the radar arrangement plate through the pin and defines the position of the radar arrangement plate. The pin comprises a first plastic head and a second plastic head. The first plastic head abuts a first surface of the radar arrangement plate. The second plastic head abuts a second surface of the power plate. The first surface is the surface of the radar arrangement plate which faces the power plate. The second surface is the surface of the power plate which faces the radar arrangement plate.

10. The human presence-responsive tube lamp according to any one of claims 1-7, wherein, The radar module comprises a radar arrangement plate and a light-emitting plate, both of which are white circuit boards, a projection direction from the radar arrangement plate to the light-emitting plate, a first projection pattern formed by the radar arrangement plate on the surface of the light-emitting plate, the first projection pattern being located in the central region of the light-emitting plate, and the light-emitting element being arranged around the first projection pattern; The radar module further comprises a transmitting sheet for emitting detection waves and a receiving sheet for receiving detection waves, the transmitting sheet and the receiving sheet being laid on the side of the radar arrangement plate facing the diffusion plate; The radar module further comprises a radar driving chip arranged on the side of the radar arrangement plate facing away from the diffusion plate; The side of the radar arrangement plate facing the diffusion plate is provided with a brightness sensor, ambient light passing through the diffusion plate to irradiate the brightness sensor so that the brightness sensor can detect the ambient brightness.

11. The human presence-responsive tube lamp according to any of claims 3-7, wherein, The diffusion plate and the first shell form a first accommodating cavity, the light-emitting plate and the radar module are arranged inside the first accommodating cavity, and the first shell is made of metal; The human body sensing down lamp further comprises a second shell connected with the first shell, the first shell and the second shell form a second accommodating cavity, and the power supply module is arranged inside the second accommodating cavity; The first shell comprises a partition plate arranged opposite to the open side, the partition plate covers the second shell to form the second accommodating cavity between the partition plate and the second shell; The first shell is integrally formed of aluminum alloy, an insulating pad is arranged between the light-emitting plate and the partition plate, and the light-emitting plate, the insulating pad and the partition plate are attached to each other; At least one first screw is fixedly connected to the second shell through the light-emitting plate, the insulating pad and the partition plate, so as to fixedly connect the light-emitting plate, the insulating pad, the first shell and the second shell; The insulating pad is provided with a second transmission hole, the partition plate is provided with a third transmission hole, and the transmission support passes through the third transmission hole, the second transmission hole and the first transmission hole; The edge of the light-emitting plate is provided with a first wiring gap, the insulating pad is provided with a second wiring hole, the partition plate is provided with a third wiring hole, the light-emitting plate is connected with a light-emitting control line, the light-emitting control line passes through the first wiring gap, the second wiring hole and the third wiring hole and is connected to the power supply module, and the power supply module controls the brightness of the light-emitting element through the light-emitting control line.

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