Wireless signal enhancement device for Internet of Things

Abstract

The invention discloses a wireless signal enhancement device for the Internet of Things, which relates to the technical field of wireless signals and comprises a base, an L-shaped plate, a temperature detector, a radio intensifier main body and a retractable door, the base is of a rectangular structure, a temperature detector is fixed on the front surface, and L-shaped plates with mounting holes are symmetrically fixed on the rear surface; auxiliary handles are symmetrically fixed at the bottom, so that mounting, carrying and horizontal placement are facilitated; the radio intensifier main body is detachably connected to the top surface of the base, and the top is rotationally connected with a plurality of antennas; the retractable doors are slidably connected to the side end of the top surface of the base and are symmetrically arranged; in addition, the base is further provided with an inner cavity, and electric telescopic rods are symmetrically fixed to the side faces and embedded in the base. The output end of the electric telescopic rod penetrates through the upper surface of the base and is fixedly connected with the bottom of the telescopic door.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless signals, and in particular to a wireless signal enhancement device for the Internet of Things. Background Art

[0002] With the rapid development of Internet of Things technology, the wireless signal coverage and signal quality have become key factors restricting the application of the Internet of Things. In scenarios such as large buildings, underground garages, and remote areas, the wireless signal is often weak, resulting in unstable communication of Internet of Things devices and affecting user experience and device performance.

[0003] Publication No. CN114884551B discloses a 5G-based signal enhancement device, including an enhancement device; the enhancement device includes an enhancer main body, an antenna, a base, a fixing block, and a connecting block one. A plurality of the antennas are arranged on the outer side wall of the enhancer main body, and the antenna is rotatably connected to the enhancer main body. The base is arranged at the bottom of the antenna, and the base is fixed by the fixing block and bolts. The enhancer main body is fixed to the base through the connecting block one; for this 5G-based signal enhancement device, by setting a fixing structure, after the enhancement device is connected to the 5G network, it is fixed on the wall, reducing the use of the cabinet, reasonably planning the occupancy rate of the space, and having a simple installation and fixing method, convenient operation. It can not only enhance the signal of the 5G network, but also fix the enhancement device well, and the two do not interfere with each other.

[0004] In an extremely low temperature environment (such as -40°C), the enhancer main body of the above signal enhancement device is easily affected by the extremely low temperature, resulting in a reduction in the signal enhancement effect and even problems of device damage. Summary of the Invention

[0005] By providing a wireless signal enhancement device for the Internet of Things, the present application solves the technical problem that the enhancer main body of the existing wireless signal enhancer is easily affected by extremely low temperature, resulting in a reduction in the signal enhancement effect and even device damage. After the temperature detector detects that the outdoor temperature reaches the low temperature condition, the retractable door controls the size of the heat dissipation port, achieving the technical effect of reducing the heat dissipation speed and keeping the radio enhancer main body warm.

[0006] The present application provides a wireless signal enhancement device for the Internet of Things, including a base, an L-shaped plate, a temperature detector, a radio enhancer main body, and a retractable door; the base is of a rectangular structure, the temperature detector is fixed on the front surface of the base, the L-shaped plates are symmetrically fixed on the rear surface, and mounting holes for mounting on the wall are provided on the L-shaped plates; auxiliary handles are symmetrically fixed at the bottom of the base, the auxiliary handles facilitate the installation and handling of the base and can also be used to place it flat on a horizontal tabletop; the radio enhancer main body is detachably connected to the top surface of the base, and a plurality of antennas are rotatably connected to the top of the radio enhancer main body; the retractable door is slidably connected to the side end of the top surface of the base and is symmetrically arranged;

[0007] The base is also provided with an inner cavity, electric telescopic rods are symmetrically fixed on the side surface of the base and are embedded inside the base, and the output ends of the electric telescopic rods pass through the upper surface of the base; the output ends of the electric telescopic rods are fixedly connected to the bottom of the retractable door; closing plates are symmetrically fixed at the bottom of the retractable door; a rectangular heat dissipation port adapted to the closing plate is provided on the side surface of the base, and the lower part of the rectangular heat dissipation port is designed as an arc-shaped port; a clamping plate is fixed near the opening of the inner cavity; a clamping plate is fixed at the bottom of the radio enhancer main body, and a clamping through groove adapted to the clamping plate is also provided on the clamping plate.

[0008] Preferably, an action port is formed in the closing plate. A cylindrical groove is formed in the middle of the lower surface of the action port. A first electromagnet is fixed at the bottom of the cylindrical groove. A top column is also slidably connected in the cylindrical groove. The top column is made of hollow plastic material, and a magnet is arranged at the bottom of the top column. The closing plate further includes a folding door, a fixing plate and an induction expansion mechanism. The top of the folding door is fixed on the upper surface of the action port and away from the inner cavity. The bottom of the folding door is fixed on the top of the top column. The top of the fixing plate is fixed on the upper surface of the action port and close to the inner cavity. A plurality of heat dissipation ports are formed in the side surface of the folding door, and fixing holes corresponding to the heat dissipation ports are formed in the side surface of the fixing plate. The heat dissipation ports are communicated with the inner cavity through the fixing holes, and the length of the fixing plate is two-thirds of the unfolded length of the folding door. The induction expansion mechanism includes an L-shaped connecting plate, a first support plate, a second support plate, a first spherical block, a second spherical block, a first bladder, a second bladder and a controller. One end of the L-shaped connecting plate passes through the base and is fixed to the first electromagnet. The middle of the other end of the L-shaped connecting plate is fixed with the first support plate, and the second support plate is fixed on the top of the first support plate. The first spherical block and the second spherical block are fixed on the upper surface of the first support plate and are equidistantly distributed. The first spherical block and the second spherical block are hemispherical, and the radii decrease in sequence. The first bladder and the second bladder are fixed on the lower surface of the second support plate. Their shapes are hemispherical, and the material is natural rubber. The thickness of the first bladder and the second bladder is 0.1 cm, and they are filled with carbon dioxide inside. The first spherical block and the second spherical block respectively correspond to the first bladder and the second bladder. Thin iron bars are fixed at the bottoms of the first bladder and the second bladder. The first spherical block and the second spherical block are separate signal sources. Circuit iron sheets are arranged at the tops of the first spherical block and the second spherical block, and they are in an open circuit state when not in contact with the thin iron bars. When in contact with the thin iron bars, a circuit is formed to transmit a signal to the controller. After receiving the signal, the controller controls the magnetic force of the first electromagnet. When the first spherical block and the second spherical block emit signals simultaneously, the controller takes the signal of the second spherical block as the standard.

[0009] Preferably, L-shaped limiting plates are fixed on the side surface of the action port and are symmetrically arranged. Second limiting grooves are also formed in the L-shaped limiting plates. The side of the L-shaped limiting plate close to the inner cavity is attached to the fixing plate. A limiting vertical plate is fixed in the middle of the top surface of the action port. The side end of the folding door is slidably connected in the second limiting groove. The width of the second limiting groove is adapted to the width of the folding door when folded. The limiting vertical plate limits the middle position of the folding door, and the L-shaped limiting plate and the limiting vertical plate are arranged in parallel.

[0010] Preferably, a long hole is penetrated through the top surface of the L-shaped limiting plate; a rectangular ventilation port is formed on the surface of the L-shaped limiting plate parallel to the fixing plate, and sequentially penetrates through the L-shaped limiting plate and the fixing plate; the L-shaped limiting plate further includes a ventilation shaft; a shaft groove is penetrated through the arc surface of the ventilation shaft; the ventilation shaft is rotatably connected in the long hole, and the length of the ventilation shaft is greater than the depth of the long hole; a thin iron column is fixed on the top surface of the ventilation shaft; a limiting circular groove is formed on the upper surface of the acting port and is concentric with the long hole, and a third electromagnet and a second electromagnet are fixed on the inner cross section of the limiting circular groove, and the third electromagnet and the second electromagnet form a 90° angle.

[0011] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0012] By detecting the change of the outdoor temperature through the temperature detector, the retractable door can control the size of the rectangular heat dissipation port, so that the radio signal enhancer body reduces the heat dissipation speed in the extremely low outdoor temperature environment, and can not only enhance the wireless signal, but also well insulate the equipment, preventing the internal components of the radio signal enhancer body from being affected by low temperature and their working performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic diagram of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0014] Figure 2 It is a schematic diagram of the structure of the electric telescopic rod of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0015] Figure 3 It is a schematic diagram of the structure of the clamping plate of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the clamping board of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0017] Figure 5 It is a three-dimensional structure schematic diagram of the second embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0018] Figure 6 It is a schematic diagram of the structure of the L-shaped connecting plate of the second embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0019] Figure 7 It is a schematic diagram of the structure of the loop iron sheet of the second embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0020] Figure 8 It is a schematic diagram of the folded state of the folding door of the second embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0021] Figure 9 Schematic diagram of the structure of the third embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0022] Figure 10 Schematic diagram of the L-shaped limiting plate structure of the third embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0023] Figure 11 Schematic diagram of the rectangular ventilation port structure of the fourth embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0024] Figure 12 Schematic three-dimensional diagram of the disassembled structure of the fourth embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0025] Figure 13 Schematic diagram of the limiting circular groove structure of the fourth embodiment of a wireless signal enhancement device for the Internet of Things according to the present invention;

[0026] Figure 14 Partial enlarged view of the fourth embodiment A of a wireless signal enhancement device for the Internet of Things according to the present invention.

[0027] In the figure:

[0028] 100, base; 101, L-shaped plate; 102, temperature detector; 103, auxiliary handle; 104, inner cavity; 105, rectangular heat dissipation port; 106, cylindrical groove; 107, limiting circular groove; 110, clamping plate; 200, radio enhancer main body; 201, antenna; 202, clamping plate; 203, acting port; 210, telescopic door; 211, electric telescopic rod; 212, closing plate; 220, folding door; 221, heat dissipation port; 222, fixing plate; 2221, fixing hole; 223, first electromagnet; 224, top column; 225, L-shaped connecting plate; 2251, first support plate; 2252, second support plate; 230, first spherical block; 240, second spherical block; 250, loop iron sheet; 260, first bladder; 270, second bladder; 280, thin iron bar; 300, L-shaped limiting plate; 301, second limiting groove; 302, rectangular ventilation port; 303, long hole; 310, limiting vertical plate; 320, ventilation shaft; 321, shaft groove; 322, thin iron column; 323, second electromagnet; 324, third electromagnet. Detailed implementation manners

[0029] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs; the terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Example 1: As Figures 1 to 4 shown, a wireless signal enhancement device for the Internet of Things of the present application includes a base 100, an L-shaped plate 101, a temperature detector 102, a radio enhancer main body 200, and a retractable door 210; the base 100 is a rectangular structure, the temperature detector 102 is fixed on the front surface of the base 100, the L-shaped plates 101 are symmetrically fixed on the rear surface, and mounting holes for mounting on the wall are provided on the L-shaped plates 101; auxiliary handles 103 are symmetrically fixed on the bottom of the base 100, the auxiliary handles 103 facilitate the installation and handling of the base 100 and can also be placed flat on a horizontal tabletop; the radio enhancer main body 200 is detachably connected to the top surface of the base 100, and a plurality of antennas 201 are rotatably connected to the top of the radio enhancer main body 200; the retractable door 210 is slidably connected to the side end of the top surface of the base 100 and is symmetrically arranged;

[0033] The base 100 is also provided with an inner cavity 104. Electric telescopic rods 211 are symmetrically fixed to the side surface of the base 100 and are embedded inside the base 100. The output end of the electric telescopic rod 211 passes through the upper surface of the base 100; the output end of the electric telescopic rod 211 is fixedly connected to the bottom of the retractable door 210; the bottom of the retractable door 210 is symmetrically fixed with closing plates 212; a rectangular heat dissipation opening 105 adapted to the closing plates 212 is formed in the side surface of the base 100, and the lower part of the rectangular heat dissipation opening 105 is designed as an arc-shaped opening; a clamping plate 110 is fixed near the opening of the inner cavity 104; a clamping plate 202 is fixed to the bottom of the radio booster main body 200, and the clamping plate 110 is also provided with a clamping through groove adapted to the clamping plate 202.

[0034] Specific implementation: Fix the base 100 to the wall surface by screws or bolts, and then snap the clamping plate 202 of the radio booster main body into the clamping through groove of the clamping plate 110; through the temperature detector 102 on the front surface of the base 100, when the outdoor temperature is between -10°C and 36°C, the electric telescopic rod 211 is in the maximum extended state, and at this time the rectangular heat dissipation holes are in the maximum open state, providing good heat dissipation for the radio booster main body 200; when the outdoor temperature is between -10°C and -40°C, the electric telescopic rod 211 controls the retractable door 210 to move downward in a gradient manner according to the decreasing outdoor temperature. When the bottom of the retractable door 210 touches the top of the base 100, it is in a fully closed state, and the rectangular design of the lower part of the rectangular heat dissipation opening 105 can still maintain partial heat dissipation when the retractable door 210 is fully closed; through the above control of the retractable door 210, the heat dissipation speed of the radio booster main body 200 can be controlled to decrease in a low outdoor temperature environment, playing a role in heat preservation.

[0035] Beneficial effects: By detecting the change of the outdoor temperature through the temperature detector 102, the retractable door 210 can control the size of the rectangular heat dissipation opening 105, so that the radio booster main body 200 reduces the heat dissipation speed in a low outdoor temperature environment, playing a role in heat preservation and preventing the internal components of the radio booster main body 200 from being affected by low temperature and their working performance.

[0036] Embodiment 2: In an extremely low outdoor temperature environment, after the radio booster main body 200 is used for a long time, the internal components may age. The aged components have a reduced working efficiency and need to consume more electrical energy to complete the same task, thus converting into more heat energy, which will cause an increase in heat generation. Since the extremely low outdoor temperature makes the retractable door 210 reduce the heat dissipation opening 221, it may cause heat to accumulate in the inner cavity 104, further affecting the performance of the radio booster main body 200. Therefore, the retractable door 210 is improved; for the above technical problems, the present application proposes the following technical solutions, specifically:

[0037] As Figures 5 to 8 shown, an action port 203 is formed on the closing plate 212. A cylindrical groove 106 is formed in the middle of the lower surface of the action port 203. A first electromagnet 223 is fixed at the bottom of the cylindrical groove 106. A top column 224 is also slidably connected in the cylindrical groove 106. The top column 224 is made of hollow plastic material, and a magnet is arranged at the bottom of the top column 224;

[0038] The closing plate 212 further includes a folding door 220, a fixing plate 222 and an induction expansion mechanism; the top of the folding door 220 is fixed on the upper surface of the action port 203 and away from the inner cavity 104; the bottom of the folding door 220 is fixed on the top of the top column 224; the top of the fixing plate 222 is fixed on the upper surface of the action port 203 and close to the inner cavity 104;

[0039] A plurality of heat dissipation ports 221 are formed on the side surface of the folding door 220. A fixing hole 2221 corresponding to the heat dissipation port 221 is formed on the side surface of the fixing plate 222. The heat dissipation port 221 is communicated with the inner cavity 104 through the fixing hole 2221, and the length of the fixing plate 222 is two-thirds of the unfolded length of the folding door 220;

[0040] The induction expansion mechanism includes an L-shaped connecting plate 225, a first support plate 2251, a second support plate 2252, a first ball block 230, a second ball block 240, a first bladder 260, a second bladder 270 and a controller; one end of the L-shaped connecting plate 225 passes through the base 100 and is fixed to the first electromagnet 223; the middle of the other end of the L-shaped connecting plate 225 is fixed with the first support plate 2251, and the second support plate 2252 is fixed on its top;

[0041] The first support plate 2251 has the first ball block 230 and the second ball block 240 fixed on its upper surface and evenly distributed; the first ball block 230 and the second ball block 240 are hemispherical in shape and the radii decrease in sequence;

[0042] The first bladder 260 and the second bladder 270 are fixed on the lower surface of the second support plate 2252. They are hemispherical in shape and made of natural rubber; the thickness of the first bladder 260 and the second bladder 270 is 0.1 cm and they are filled with carbon dioxide inside; the first ball block 230 and the second ball block 240 respectively correspond to the first bladder 260 and the second bladder 270; thin iron bars 280 are fixed at the bottoms of the first bladder 260 and the second bladder 270;

[0043] The first ball block 230 and the second ball block 240 are separate signal sources. A loop iron sheet 250 is provided at the top of the first ball block 230 and the second ball block 240, and it is in an open circuit state without contacting the thin iron bar 280. When it contacts the thin iron bar 280, a path is formed to transmit a signal to the controller. After receiving the signal, the controller controls the magnetic force magnitude of the first electromagnet 223. When the first ball block 230 and the second ball block 240 emit signals simultaneously, the controller takes the signal of the second ball block 240 as the standard.

[0044] Determine relevant physical quantities and formulas:

[0045] The bladder is a hemisphere, and the volume formula (r is the radius). The initial expansion radius of the bladder is 3 cm, the bladder thickness is 0.1 cm, and the elastic modulus E of natural rubber is 2 - 4 MPa. Take E = 2 MPa.

[0046] For the thermal expansion of gas, according to the formula ΔV = V 0 βΔT (β is the expansion coefficient, ΔT is the temperature change, V 0 is the initial volume). The elastic resistance of natural rubber is based on Hooke's law F = kΔ x , considering the structure and force of the bladder, the relationship between elastic resistance and deformation is calculated through the elastic modulus E. The elastic modulus (A is the force-bearing area, ΔL is the length change, L is the initial length).

[0047] It is necessary to consider the relationship between the change in the surface area of the bladder and the change in radius. The surface area formula of the bladder is S = 2πr 3 (hemisphere surface area). Calculate the initial volume and surface area:

[0048] Given the initial radius r 0 = 3 cm = 0.03 m, then the initial volume:

[0049] The initial surface area:

[0050] Consider the volume change caused by gas expansion:

[0051] Given the expansion coefficient of carbon dioxide When the temperature rises by ΔT = 1 °C, the gas volume change

[0052]

[0053] Consider the expansion of natural rubber:

[0054] The expansion coefficient β of natural rubber rubber = 21.6*10 -4 / K = 21.6*10-4 / °C (since 1 K = 1 °C).

[0055] Since the thickness of the bladder d = 0.1 cm = 0.001 m, the bladder can be regarded as a thin-walled structure. Its volume change ΔV rubber can be approximately calculated by the surface area change.

[0056] Surface area change: ΔS = S 0 β rubber ΔT = 0.0018π * 21.6 * 10 -4 * 1 ≈ 1.225 * 10 -5 m 2 .

[0057] The corresponding volume change: ΔV rubber ≈ ΔS * d = 1.225 * 10 -5 * 0.001 = 1.225 * 10 -8 m 3 .

[0058] Calculate the radius change caused by the elastic resistance:

[0059] Let the radius change be Δr, the surface area change ΔS = 4πr 0 Δr (for S = 2πr 2 Taking the derivative gives dS = 4πr dr).

[0060] From the elastic modulus E = 2 MPa = 2 * 10 6 Pa, according to Here A = S 0 = 0.0018π m 2 , L = r 0 = 0.03 m, ΔL = Δr.

[0061] First, calculate the force F generated by the expansion of carbon dioxide and natural rubber. According to the pressure Here the pressure is generated by carbon dioxide and natural rubber. Assume the pressure generated by the expansion of carbon dioxide is P gas , and the pressure generated by natural rubber is P ru bb er .

[0062] (P 0 is the atmospheric pressure), (V rubber is the volume of natural rubber, V rubber ≈ S 0 * d = 0.0018π * 0.001 ≈ 5.655 * 10 -6 m 3 ).

[0063] F = (P gas + P rubber )A, substitute into it can be obtained that

[0064] After calculation:

[0065] (P 0 is at atmospheric pressure).

[0066]

[0067] ΔP total = P gas + P rubber ≈ (0.003742 + 0.002166)P 0 = 0.005908P 0 .

[0068] Substitute into E = 2 * 10 6 Pa, r 0 = 0.03m, P 0 = 1.013 * 10 5 Pa (atmospheric pressure), it can be obtained that

[0069] Convert back to radius: (Reverse calculate the radius from the volume of the hemisphere).

[0070] Temperature increase °C New radius cm 1 <![CDATA[9*10 -4 > 10 <![CDATA[9*10 -3 > 20 <![CDATA[1.8*10 -2 >

[0071] Working process: When the temperature in the inner cavity 104 rises from 20°C to 30°C, the first bladder 260 expands due to heat to 9 * 10 - 3 cm (the first ball block 230 and the second ball block 240 expand synchronously), the thin iron bar 280 on the first bladder 260 contacts the loop iron sheet 250 of the first ball block 230 (the thin iron bar 280 contacts the loop iron sheet 250 to form a circuit), sending a signal to the first electromagnet 223, and the first electromagnet 223 generates an upward repulsive force on the magnet on the lower bottom surface of the ejector post 224 (this is the first supply of repulsive force), causing the ejector post 224 to move upward by a certain distance. The ejector post 224 moves upward in the cylindrical groove 106 to lift the folding door 220, and the folding door 220 folds. At this time, a heat dissipation opening is formed between the folding door 220 and the acting port 203 (this is the first-stage opening), and the heat dissipation port 221 on the folding door 220 is in a semi-connected state with the fixed hole 2221; when the temperature in the inner cavity 104 rises to 40°C, the second bladder 270 expands due to heat to 1.8 * 10 -2When the distance is

[0072] cm, the thin iron bar 280 on the second bladder 270 contacts the circuit iron sheet 250 of the second ball block 240, sending a signal to the first electromagnet 223. The first electromagnet 223 increases the repulsive force on the magnet on the lower bottom surface of the ejector post 224 again (this is the second supply of repulsive force). The ejector post 224 moves upward in the cylindrical groove 106 to lift the folding door 220. At this time, a heat dissipation opening (this is the second-level opening) is formed between the folding door 220 and the action port 203, and the heat dissipation port 221 on the folding door 220 and the fixing hole 2221 are in the maximum communication state to achieve the heat dissipation effect.

[0072] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0073] When the outdoor extreme temperature makes the retractable door 210 reduce the heat dissipation port 221, it can adjust the size of the action port 203 according to the temperature change in the inner cavity 104, and the size of the communication between the heat dissipation port 221 and the fixing hole 2221 increases as the temperature in the inner cavity 104 rises. This not only prevents the accumulation of heat in the inner cavity 104 but also ensures the radio enhancement effect of the radio enhancer main body 200.

[0074] Embodiment 3: When the folding door 220 is pushed upward by the ejector post 224, it may fold outward, causing the heat dissipation holes and the fixing hole 2221 to be unable to be properly aligned, resulting in the inability to accurately dissipate heat according to the temperature in the inner cavity 104. To solve the above technical problems, the following technical solutions are proposed in this application, specifically:

[0075] As Figure 9 and Figure 10 shown, L-shaped limiting plates 300 are fixed on the side surfaces of the action port 203 and are symmetrically arranged. The L-shaped limiting plates 300 are also provided with second limiting grooves 301; the side of the L-shaped limiting plate 300 close to the inner cavity 104 is attached to the fixing plate 222; a limiting vertical plate 310 is fixed in the middle of the top surface of the action port 203, and the side end of the folding door 220 is slidably connected in the second limiting groove 301. The width of the second limiting groove 301 is adapted to the width of the folding door 220 when it is folded; the limiting vertical plate 310 limits the middle position of the folding door 220, and the L-shaped limiting plate 300 and the limiting vertical plate 310 are arranged in parallel.

[0076] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0077] Limit the folding process of the folding door 220 to prevent the folding door 220 from folding outward, ensuring the accurate connection and heat dissipation of the heat dissipation port 221 and the fixing hole 2221.

[0078] Embodiment 4: The temperature in the inner cavity 104 may be slow in heat dissipation due to the aging of components, and the slow heat dissipation will affect the user experience of the Internet of Things. In order to improve the heat dissipation speed, the L-shaped limiting plate 300 is improved; in view of the above technical problems, the present application proposes the following technical solutions, specifically:

[0079] As Figures 11 to 14 shown, a long hole 303 is penetratedly opened on the top surface of the L-shaped limiting plate 300; a rectangular ventilation opening 302 is opened on the surface of the L-shaped limiting plate 300 parallel to the fixing plate 222, and sequentially penetrates through the L-shaped limiting plate 300 and the fixing plate 222; the L-shaped limiting plate 300 further includes a ventilation shaft 320; a shaft groove 321 is penetrated on the arc surface of the ventilation shaft 320; the ventilation shaft 320 is rotatably connected in the long hole 303, and the length of the ventilation shaft 320 is greater than the depth of the long hole 303; a thin iron column 322 is fixed on the top surface of the ventilation shaft 320;

[0080] A limiting circular groove 107 is opened on the upper surface of the action port 203, and is concentric with the long hole 303. On the inner cross-section of the limiting circular groove 107, a third electromagnet 324 and a second electromagnet 323 are fixed around the center, and the third electromagnet 324 and the second electromagnet 323 form a 90° angle.

[0081] Working process: By controlling the rotation of the ventilation shaft 320 through the third electromagnet 324 or the second electromagnet 323, the shaft groove 321 is communicated with the rectangular heat dissipation port 105, so as to improve the heat dissipation speed and ensure the stable signal enhancement effect of the radio enhancer main body 200.

[0082] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0083] By manually controlling the rotation of the ventilation shaft 320, the heat dissipation speed is improved, and the stable signal enhancement effect of the radio enhancer main body 200 is ensured.

[0084] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wireless signal enhancement device for the Internet of Things, characterized in that: The invention comprises a base (100), an L-shaped plate (101), a temperature detector (102), a radio enhancer body (200) and a telescopic door (210); the base (100) is a rectangular structure, the temperature detector (102) is fixed on the front surface of the base (100), the L-shaped plate (101) is symmetrically fixed on the rear surface, and the L-shaped plate (101) is provided with a mounting hole for mounting on a wall; an auxiliary handle (103) is symmetrically fixed on the bottom of the base (100), the auxiliary handle (103) facilitates the installation and transportation of the base (100), and can also be placed flat on a horizontal table; the radio enhancer body (200) is detachably connected to the top surface of the base (100), and the top of the radio enhancer body (200) is rotatably connected to an antenna (201); the telescopic door (210) is slidably connected to the side end of the top surface of the base (100) and is symmetrically arranged.

2. A wireless signal enhancement device for the Internet of Things as claimed in claim 1, characterized in that: The base (100) is also provided with an inner cavity (104); an electric telescopic rod (211) is symmetrically fixed to the side of the base (100) and embedded in the base (100); an output end of the electric telescopic rod (211) passes through the upper surface of the base (100); and the output end of the electric telescopic rod (211) is fixedly connected to the bottom of the telescopic door (210).

3. A wireless signal enhancement device for the Internet of Things as claimed in claim 2, characterized in that: A closing plate (212) is symmetrically fixed to the bottom of the telescopic door (210); a rectangular heat dissipation port (105) matching the closing plate (212) is provided on the side of the base (100), and the lower part of the rectangular heat dissipation port (105) is designed as an arc-shaped port; a card plate (110) is fixed near the opening of the inner cavity (104); a card plate (202) is fixed to the bottom of the radio enhancer body (200), and the card plate (110) is also provided with a card connection slot matching the card plate (202).

4. A wireless signal enhancement device for the Internet of Things as claimed in claim 3, characterized in that: The closing plate (212) is provided with an operating opening (203), a cylindrical groove (106) is provided in the middle of the lower surface of the operating opening (203), a first electromagnet (223) is fixed at the bottom of the cylindrical groove (106), a top column (224) is slidably connected in the cylindrical groove (106), the top column (224) is made of a hollow plastic material, and a magnet is arranged at the bottom of the top column (224); the closing plate (212) further comprises a folding door (220), a fixing plate (222) and an induction expansion mechanism; the top of the folding door (220) is fixed on the upper surface of the operating opening (203), and is remotely connected to the bottom of the cylindrical groove (106). The folding door (220) is provided with a bottom portion fixed to the top portion of the top column (224); the top portion of the fixing plate (222) is fixed to the upper surface of the action port (203) and is close to the inner cavity (104); the side surface of the folding door (220) is provided with a plurality of heat dissipation ports (221); the side surface of the fixing plate (222) is provided with fixing holes (2221) corresponding to the heat dissipation ports (221); the heat dissipation ports (221) are connected to the inner cavity (104) through the fixing holes (2221); and the length of the fixing plate (222) is two thirds of the unfolded length of the folding door (220).

5. A wireless signal enhancement device for the Internet of Things as claimed in claim 4, characterized in that: The inductive expansion mechanism comprises an L-shaped connecting plate (225), a first supporting plate (2251), a second supporting plate (2252), a first ball block (230), a second ball block (240), a first capsule (260), a second capsule (270) and a controller; one end of the L-shaped connecting plate (225) passes through the base (100) and is fixed to the first electromagnet (223); the first supporting plate (2251) is fixed to the middle of the other end of the L-shaped connecting plate (225), and the second supporting plate (2252) is fixed to the top thereof.

6. A wireless signal enhancement device for the Internet of Things as claimed in claim 5, characterized in that: The first ball block (230) and the second ball block (240) are fixed on the upper surface of the first support plate (2251) and are equidistantly distributed; the first ball block (230) and the second ball block (240) are hemispherical in shape, and the radii decrease successively.

7. A wireless signal enhancement device for the Internet of Things as claimed in claim 6, characterized in that: The first capsule (260) and the second capsule (270) are fixed to the lower surface of the second support plate (2252), which are hemispherical in shape and made of natural rubber; the thickness of the first capsule (260) and the second capsule (270) is 0.1 cm, and carbon dioxide is filled inside; the first ball block (230) and the second ball block (240) correspond to the first capsule (260) and the second capsule (270) respectively; thin iron bars (280) are fixed to the bottom of the first capsule (260) and the second capsule (270).

8. A wireless signal enhancement device for the Internet of Things as claimed in claim 7, characterized in that: The first ball block (230) and the second ball block (240) are independent signal sources. A loop iron sheet (250) is provided on the top of the first ball block (230) and the second ball block (240). When the first ball block (230) and the second ball block (240) are not in contact with the thin iron bar (280), they are in an open circuit state. When they are in contact with the thin iron bar (280), a passage is formed to transmit a signal to the controller. After receiving the signal, the controller controls the magnetic force of the first electromagnet (223). When the first ball block (230) and the second ball block (240) send signals at the same time, the controller takes the signal of the second ball block (240) as the standard.

9. A wireless signal enhancement device for the Internet of Things as claimed in claim 8, characterized in that: An L-shaped limiting plate (300) is fixed to the side surface of the action opening (203) and is symmetrically arranged, and the L-shaped limiting plate (300) is also provided with a second limiting groove (301); a side of the L-shaped limiting plate (300) close to the inner cavity (104) is in contact with the fixing plate (222); a limiting vertical plate (310) is fixed to the middle of the top surface of the action opening (203), and the side end of the folding door (220) is slidably connected in the second limiting groove (301), and the width of the second limiting groove (301) is adapted to the width of the folding door (220) when folded; the limiting vertical plate (310) limits the middle position of the folding door (220), and the L-shaped limiting plate (300) and the limiting vertical plate (310) are arranged in parallel.

10. A wireless signal enhancement device for the Internet of Things as claimed in claim 9, characterized in that: The top surface of the L-shaped limiting plate (300) is provided with a long hole (303); the surface of the L-shaped limiting plate (300) parallel to the fixing plate (222) is provided with a rectangular vent (302), which passes through the L-shaped limiting plate (300) and the fixing plate (222) in sequence; the L-shaped limiting plate (300) further comprises a vent shaft (320); an axial groove (321) passes through the arc surface of the vent shaft (320); the vent shaft (320) is rotatably connected in the long hole (303), The length of the ventilation shaft (320) is greater than the depth of the long hole (303); a thin iron column (322) is fixed on the top surface of the ventilation shaft (320); a limiting circular groove (107) is opened on the upper surface of the action port (203) and is cocentric with the long hole (303); a third electromagnet (324) and a second electromagnet (323) are fixed on the inner section of the limiting circular groove (107); the third electromagnet (324) and the second electromagnet (323) form an angle of 90°.

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