Receiving antenna assembly and monitoring equipment

Abstract

The invention discloses a receiving antenna assembly and monitoring equipment, and relates to the technical field of antennae, and the receiving antenna assembly comprises a housing, a reflection joint, a control panel, a feeder line and an antenna body. A wire passing through hole is formed in the shell; the reflecting joint is provided with a sleeve part and a flange part; the flange part is made of an electromagnetic wave reflecting material and is arranged at one end of the sleeve part; the sleeve part is arranged in the wire passing through hole in a penetrating mode, and the flange part is attached to the inner cavity wall of the shell. The control panel is arranged in the shell; the feeder line is arranged in the shell, one end of the feeder line is electrically connected with the control panel, and the other end of the feeder line extends out of the shell through an inner cavity of the sleeve part; the antenna body is arranged in the shell and is electrically connected with the control panel. According to the scheme, the defect that the reflection area of the control panel is insufficient is overcome by utilizing the reflection joint, the reflection joint expands the reflection area in a limited space while the feeder line passes through the reflection joint, the receiving efficiency of electromagnetic wave signals is enhanced, the balance of signal strength in all directions is improved, and the signal transmission stability is improved.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a receiving antenna assembly and monitoring equipment. Background Art

[0002] In modern electronic devices, antennas are key components for signal transmission, and their performance plays a crucial role in device communication quality. However, traditional antennas provide strong signal strength in certain directions but weak signals in others, resulting in unstable signal transmission. During installation, users often struggle to achieve ideal signal transmission because they cannot determine the antenna's gain direction. Summary of the Invention

[0003] The main purpose of this application is to propose a receiving antenna assembly, which uses a reflective joint on the outer shell to compensate for the defect of insufficient reflection area of ​​the control board. The reflective joint expands the reflection area within a limited space while allowing the feeder to pass through, thereby enhancing the efficiency of receiving electromagnetic wave signals and improving the balance of signal strength in all directions, thereby improving the stability of signal transmission.

[0004] To achieve the above objectives, the receiving antenna assembly proposed in this application includes:

[0005] A housing, wherein the housing is provided with a wire-passing hole;

[0006] A reflective connector comprising a sleeve portion and a flange portion, wherein the flange portion is provided at one end of the sleeve portion and extends radially outward, and the flange portion is made of an electromagnetic wave reflecting material; the sleeve portion is passed through the wire through hole, and the flange portion is in contact with the inner cavity wall of the housing;

[0007] A control panel, the control panel being disposed in the inner cavity of the housing, and the surface layer of the control panel being configured as an electromagnetic wave reflecting material;

[0008] a feeder, the feeder being disposed in the inner cavity of the housing, one end of the feeder being electrically connected to the control board, and the other end of the feeder extending through the inner cavity of the sleeve portion to the outside of the housing;

[0009] The antenna body is arranged in the inner cavity of the shell, and one end of the antenna body is electrically connected to the control board.

[0010] In one embodiment, a connecting through-hole is formed in the control plate, and an edge of the connecting through-hole is engaged with an outer peripheral side of the flange portion.

[0011] In one embodiment, the control board is provided with a first soldering pad, a second soldering pad and a ground pin, the first soldering pad is electrically connected to the second soldering pad, and one end of the antenna body is welded to the first soldering pad; the feed line has an inner conductor and an outer conductor coaxially arranged, the inner conductor is welded to the second soldering pad, and the outer conductor is welded to the ground pin.

[0012] In one embodiment, the reflective joint is configured as a hollow rivet made of copper.

[0013] In one embodiment, a surface of the flange portion is provided with a plurality of groove structures arranged at intervals.

[0014] In one embodiment, the feeder further includes an inner insulating layer, wherein the inner insulating layer is sandwiched between the inner conductor and the outer conductor.

[0015] In one embodiment, the feeder further includes an outer sheath, and the outer sheath is coated on the surface of the outer conductor.

[0016] In one embodiment, the feeder further includes an inner insulating layer and an outer sheath, the inner insulating layer is sandwiched between the inner conductor and the outer conductor, and the outer sheath is covered on the surface of the outer conductor; the outer conductor, the inner insulating layer, and the inner conductor extend outward from the end of the outer sheath, the distance between the end of the inner insulating layer and the end of the outer sheath is greater than the distance between the end of the outer conductor and the end of the outer sheath, and the distance between the end of the inner conductor and the end of the outer sheath is greater than the distance between the end of the inner insulating layer and the end of the outer sheath.

[0017] In one embodiment, the antenna body is configured as a helical antenna.

[0018] In one embodiment, the control board is configured as a flexible circuit board.

[0019] In one embodiment, the wavelength of the receiving antenna assembly is used as λ;

[0020] The total length of the antenna body is ≥λ;

[0021] And / or, λ / 8≤the radius of the antenna body≤λ / 4;

[0022] And / or, λ / 4≤the helical angle of the antenna body≤λ / 2.

[0023] In one embodiment, a reinforcement plate is attached to one side of the control board.

[0024] In one embodiment, the flange portion includes a central ring body and a plurality of reflective sheet bodies, and the plurality of reflective sheet bodies are arranged at intervals along the circumference of the central ring body; one side edge of the reflective sheet body is hinged to the inner circumference of the central ring body around a first axis, and the first axis is perpendicular to the central axis of the central ring body.

[0025] In one embodiment, the wire through hole is configured as an oblong hole, and the sleeve portion is slidably fitted in the oblong hole.

[0026] In one embodiment, the end face of the center ring body is provided with a plurality of snap-fitting teeth arranged in sequence along the radial direction; the reflective joint also includes a support rod, one end of which is hinged to a side of the reflective sheet body facing the center ring body around a second axis, the second axis is parallel to the first axis, and the other end of the support rod is provided with a claw structure, which is used to snap-fit ​​with one of the snap-fitting teeth.

[0027] In one embodiment, the reflective sheet includes a plurality of first sheets and a plurality of second sheets, wherein the plurality of first sheets are arranged at intervals along the inner periphery of the center ring body, and the plurality of second sheets are arranged at intervals along the outer periphery of the center ring body; one side edge of the first sheet is hinged to the inner periphery of the center ring body around the first axis, and the side edge of the second sheet close to the first sheet is hinged to the center ring body around a third axis, and the third axis is perpendicular to the central axis of the center ring body.

[0028] In one embodiment, a threaded structure is provided at one end of the sleeve portion located outside the housing, and the receiving antenna assembly further includes a connecting nut; the connecting nut is used to be threadedly connected to the threaded structure to lock the reflective joint on the housing.

[0029] In one embodiment, the receiving antenna assembly further includes a sealing strip, which is adhered to the housing and seals the gap between the sleeve portion and the oblong hole.

[0030] In one embodiment, the first sheet and the second sheet are staggered in the circumferential direction of the central ring.

[0031] The present application also proposes a monitoring device, which includes the aforementioned receiving antenna assembly.

[0032] The receiving antenna assembly proposed in the present application utilizes a reflective joint on the outer shell to compensate for the defect of insufficient reflection area of ​​the control board. The flange portion of the reflective joint located inside the outer shell is set as an electromagnetic wave reflecting material. In this way, the reflective joint not only allows the feeder to pass through but also expands the reflection area within the limited space inside the outer shell. It can cooperate with the control board to reflect external electromagnetic waves, so that more scattered electromagnetic waves in the space are reflected and gathered in the area where the antenna body is located, thereby improving the antenna body's reception efficiency of electromagnetic waves in all directions, improving the balance of signal strength in all directions, and thus improving the stability of signal transmission, solving the problem that traditional antennas have good signal strength in some directions and weak signals in other directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a schematic structural diagram of an embodiment of a receiving antenna assembly of the present application;

[0035] Figure 2 This is a structural diagram of a control board in an embodiment of a receiving antenna assembly of the present application;

[0036] Figure 3 This is a schematic structural diagram of a reinforcement plate in an embodiment of a receiving antenna assembly of the present application.

[0037] Description of Figure Numbers:

[0038] 1. Reflective connector;

[0039] 2. Control board; 21. First solder pad; 22. Second solder pad; 23. Ground pin;

[0040] 3. Feeder; 31. Inner conductor; 32. Outer conductor; 33. Inner insulation layer; 34. Outer sheath;

[0041] 4. Antenna body;

[0042] 5. Reinforcement plate; 51. Notch structure.

[0043] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0045] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] In modern electronic devices, antennas are key components for signal transmission, and their performance plays a crucial role in device communication quality. However, traditional antennas provide strong signal strength in certain directions but weak signals in others, resulting in unstable signal transmission. During installation, users often struggle to achieve ideal signal transmission because they cannot determine the antenna's gain direction.

[0048] In order to solve the above problems, the present application proposes a receiving antenna assembly, which uses a reflective joint on the outer shell to compensate for the defect of insufficient reflection area of ​​the control board. The reflective joint expands the reflection area within a limited space while allowing the feeder to pass through, thereby enhancing the reception efficiency of electromagnetic wave signals and improving the balance of signal strength in all directions, thereby improving the stability of signal transmission.

[0049] See also Figure 1 , a receiving antenna assembly provided in one embodiment of the present application includes:

[0050] The housing (not shown in the figure) is provided with a wire-passing hole (not shown in the figure);

[0051] The reflection connector 1 comprises a sleeve portion (not shown in the figure) and a flange portion (not shown in the figure). The flange portion is provided at one end of the sleeve portion and extends radially outward. The flange portion is made of an electromagnetic wave reflecting material. The sleeve portion is inserted into the wire through hole, and the flange portion is in contact with the inner cavity wall of the housing.

[0052] A control board 2 is disposed in the inner cavity of the housing, and a surface layer of the control board 2 is provided with an electromagnetic wave reflecting material;

[0053] Feeder 3, which is disposed in the inner cavity of the housing. One end of the feeder 3 is electrically connected to the control board 2, and the other end of the feeder 3 extends through the inner cavity of the sleeve portion to the outside of the housing.

[0054] The antenna body 4 is disposed in the inner cavity of the housing, and one end of the antenna body 4 is electrically connected to the control board 2 .

[0055] In this embodiment, feeder line 3 can be a coaxial cable, and antenna body 4 can be made of evenly wound copper wire. Feeder line 3 is connected to antenna body 4 via control board 2. When a signal is transmitted through feeder line 3, feeder line 3 transmits the signal to antenna body 4 via control board 2. When the signal current passes through antenna body 4, an electromagnetic field is generated on antenna body 4, which radiates outward. Antenna body 4 can also receive electromagnetic waves from the outside.

[0056] The control board 2 plays the role of transmitting radio frequency signals, and can efficiently transmit the electromagnetic wave signals received or transmitted by the antenna body 4 to the feeder 3, so that the signals can be further processed and utilized by the equipment; the control board 2 can also help achieve impedance matching between the antenna body 4 and the feeder 3, thereby improving signal transmission efficiency; in addition, as a ground plane, the control board 2 can provide a stable reference potential for the antenna, and the electromagnetic wave reflecting material on the surface of the control board 2 as a ground plane can effectively reflect electromagnetic waves, and can reflect electromagnetic waves scattered in all directions in space to the receiving area of ​​the antenna body 4, thereby reducing unnecessary energy loss and making the signal more concentrated.

[0057] The control board 2, feed line 3, and antenna body 4 are all integrated inside the shell. In this way, the shell can be used to protect the control board 2, feed line 3, and antenna body 4, reducing the interference caused by external factors to the control board 2, feed line 3, and antenna body 4. It can also improve the compactness and aesthetics of the overall structure and make it easier to connect and integrate with other electronic devices.

[0058] The housing is provided with a wire-passing hole; the reflective joint 1 is configured as a hollow stepped shaft, and the small-diameter portion (i.e., the sleeve portion) of the reflective joint 1 is inserted into the wire-passing hole. One end face of the small-diameter portion (i.e., the flange portion) of the reflective joint 1 is in contact with the inner cavity wall of the housing, and the other end face of the flange portion is disposed toward the antenna body 4 inside the housing. The inner cavity of the sleeve portion (i.e., the hollow cavity of the reflective joint 1) allows the feeder line 3 to pass through, allowing the other end of the feeder line 3 to pass through the housing and connect to other external devices. The reflective joint 1 can provide a certain degree of protection for the feeder line 3, preventing the feeder line 3 from being damaged by direct contact with the edge of the wire-passing hole, and the inner cavity wall of the sleeve portion is highly in contact with the feeder line 3, which can reduce the shaking of the feeder line 3 relative to the housing.

[0059] In actual applications, the reflection area of ​​the control board 2 is limited. Therefore, in this embodiment, the flange portion of the reflection joint 1 is set to an electromagnetic wave reflection material. The electromagnetic wave reflection material can be made of metal materials such as copper and silver, or composite materials, nanomaterials, etc. with electromagnetic wave reflection capabilities. In this way, the flange portion can cooperate with the control board 2 to reflect external electromagnetic waves, thereby increasing the area of ​​the reflection zone inside the shell, so that more scattered electromagnetic waves in the space are reflected and gathered in the area where the antenna body 4 is located, thereby improving the antenna body 4's reception efficiency of electromagnetic waves in all directions, improving the balance of signal strength in all directions, and thus improving the stability of signal transmission.

[0060] Specifically, taking the application of the receiving antenna assembly on monitoring devices such as baby monitors as an example, the receiving antenna assembly can ensure stable signal transmission between the monitoring device and the monitored object, avoiding signal loss or weak signal phenomena caused by antenna directionality problems.

[0061] It can be seen that the receiving antenna assembly provided in this embodiment utilizes the reflection joint 1 on the shell to make up for the defect of insufficient reflection area of ​​the control board 2. The flange portion of the reflection joint 1 located inside the shell is set as an electromagnetic wave reflection material. In this way, the reflection joint 1 not only allows the feeder line 3 to pass through, but also expands the reflection area within the limited space inside the shell. It can cooperate with the control board 2 to reflect external electromagnetic waves, so that more scattered electromagnetic waves in the space are reflected and concentrated in the area where the antenna body 4 is located, thereby improving the antenna body 4's reception efficiency of electromagnetic waves in all directions, improving the balance of signal strength in all directions, and thus improving the stability of signal transmission, solving the problem that traditional antennas have good signal strength in some directions and weak signals in other directions.

[0062] Further, refer to Figure 1 The control board 2 is provided with a connecting through hole (not shown in the figure), and the edge of the connecting through hole is engaged with the outer peripheral side of the flange portion.

[0063] Specifically, the shape of the connecting hole should be compatible with the outer contour of the flange portion to reduce or eliminate the gap at the connection between the flange portion and the control board 2. This allows the flange portion and the control board 2 to form a complete reflection zone, maintaining the continuity of the area reflecting electromagnetic waves and thus improving the reflection effect. In addition, by joining the edge of the connecting hole with the outer periphery of the flange portion, the flange portion can be used to provide a certain limit to the control board 2, thereby ensuring the positional stability of the control board 2.

[0064] Further, refer to Figure 1 and Figure 2 The control board 2 is provided with a first soldering pad 21, a second soldering pad 22 and a ground pin 23. The first soldering pad 21 is electrically connected to the second soldering pad 22. One end of the antenna body 4 is soldered to the first soldering pad 21.

[0065] The feed line 3 has an inner conductor 31 and an outer conductor 32 that are coaxially arranged. The inner conductor 31 is welded to the second soldering pad 22 , and the outer conductor 32 is welded to the ground pin 23 .

[0066] Based on the connection method of this embodiment, not only is it ensured that the signal can be efficiently transmitted between the antenna body 4, the control board 2 and the feeder 3, but also impedance matching between the antenna body 4 and the feeder 3 is achieved, thereby improving the signal transmission efficiency; at the same time, the ground pin 23 provides a stable reference potential for the receiving antenna assembly, thereby further improving the stability of signal transmission.

[0067] Further, refer to Figure 1 The feeder 3 further includes an inner insulating layer 33, which is sandwiched between the inner conductor 31 and the outer conductor 32. The function of the inner insulating layer 33 is to maintain a good insulation state between the inner conductor 31 and the outer conductor 32, thereby ensuring the quality and stability of the signal during transmission and preventing signal leakage and interference.

[0068] Further, refer to Figure 1 The feeder 3 further includes an outer sheath 34, which covers the surface of the outer conductor 32. The outer sheath 34 is usually made of an insulating material and can protect the feeder 3, block external interference, and maintain the structural stability of the feeder 3.

[0069] Further, refer to Figure 1 The feeder 3 further includes an inner insulating layer 33 and an outer sheath 34 , wherein the inner insulating layer 33 is sandwiched between the inner conductor 31 and the outer conductor 32 , and the outer sheath 34 is coated on the surface of the outer conductor 32 ;

[0070] The outer conductor 32, the inner insulating layer 33, and the inner conductor 31 extend outward from the end of the outer sheath 34. The distance between the end of the inner insulating layer 33 and the end of the outer sheath 34 is greater than the distance between the end of the outer conductor 32 and the end of the outer sheath 34. The distance between the end of the inner conductor 31 and the end of the outer sheath 34 is greater than the distance between the end of the inner insulating layer 33 and the end of the outer sheath 34.

[0071] Based on the above arrangement, a certain distance is formed between the end of the inner conductor 31 and the end of the outer conductor 32. The portion of the inner conductor 31 extending beyond the end of the inner insulating layer 33 serves as the first connection region, which is used to connect to the second pad 22. The portion of the outer conductor 32 extending beyond the end of the outer sheath 34 serves as the second connection region, which is used to connect to the ground pin 23. This ensures a certain distance between the first and second connection regions, and the inner insulating layer 33 provides insulation between the first and second connection regions, thereby avoiding interference or signal interference caused by the first and second connection regions being too close together.

[0072] Further, refer to Figure 1 , antenna body 4 is configured as a helical antenna. When signal current passes through antenna body 4, an electromagnetic field is generated on antenna body 4. Due to the helical structure of antenna body 4, the electromagnetic field rotates along the helical structure, forming a spiral electromagnetic field. This spiral electromagnetic field can radiate outward or receive electromagnetic waves from the outside. In addition, based on the propagation characteristics of electromagnetic waves in space, the helical antenna can achieve omnidirectional radiation or directional radiation. Omnidirectional radiation refers to 360° radiation around the central axis of the helical antenna.

[0073] Further, refer to Figure 1 , taking the wavelength of the receiving antenna assembly as λ;

[0074] The total length of the antenna body 4 is ≥λ;

[0075] and / or, λ / 8≤radius of the antenna body 4≤λ / 4;

[0076] And / or, λ / 4≤the helical angle of the antenna body 4≤λ / 2.

[0077] The above-mentioned dimensional parameters are designed based on the propagation characteristics of electromagnetic waves and the operating principles of antennas. Specifically, when the total length of the helical antenna body 4 is equal to or slightly greater than one wavelength, it can generate strong electromagnetic radiation, thereby improving signal transmission and reception. Furthermore, when the radius and helix angle of the antenna body 4 are within the above-mentioned wavelength range, the radiation characteristics and impedance matching of the antenna body 4 are optimized, thereby enhancing the transmission and reception performance of the antenna body 4.

[0078] Further, refer to Figure 1 and Figure 2 The reflective joint 1 is configured as a hollow rivet. Specifically, the small diameter portion of the hollow rivet constitutes the sleeve portion, and the large diameter portion of the hollow rivet constitutes the flange portion; the small diameter portion of the hollow rivet can be conveniently connected to the wire through hole of the housing by riveting, threading, or the like.

[0079] Hollow rivets have a simple structure and offer excellent mechanical properties and connection stability. By designing the reflector joint 1 as a hollow rivet, it not only meets its functional requirements as a channel for the feeder 3, but also expands the reflection area within a limited space. This ensures a reliable connection between the reflector joint 1, the housing, and the control board 2, ensuring the structural stability and signal reflection performance of the entire receiving antenna assembly.

[0080] Further, refer to Figure 1 and Figure 2 The reflective connector 1 is made of copper. Copper is an excellent electromagnetic wave reflector with high electrical and thermal conductivity, effectively reflecting electromagnetic waves and improving the antenna's reception efficiency. Furthermore, the copper reflective connector 1 possesses excellent mechanical properties and corrosion resistance, ensuring its stability and reliability over long-term use. This further enhances the performance of the receiving antenna assembly and extends its service life.

[0081] Further, refer to Figure 2 , the control board 2 is configured as a flexible printed circuit (FPC). Flexible printed circuits have good flexibility and bendability, can adapt to different installation space and shape requirements, and are convenient for installation and layout in housings of various complex structures. In the receiving antenna assembly of this embodiment, a flexible printed circuit is used as the control board 2. This not only enables electrical connection between the control board 2 and components such as the antenna body 4 and the feeder 3, but also allows for flexible layout according to the shape of the housing, thereby improving the space utilization and assembly flexibility of the entire receiving antenna assembly. It also helps to reduce the volume and weight of the receiving antenna assembly, making it more suitable for use in electronic devices such as monitoring equipment that have certain requirements on volume and weight.

[0082] Further, refer to Figure 2 and Figure 3 A reinforcing plate 5 is attached to one side of the control board 2. The reinforcing plate 5 can be adhesively attached to the side of the control board 2 facing the inner wall of the housing to increase the structural strength of the control board 2 at a local location and improve overall structural stability. A notch 51 corresponding to the connection hole of the control board 2 can be provided on the reinforcing plate 5 to provide clearance for the reflective connector 1.

[0083] Further, refer to Figure 1 The surface of the flange portion is provided with a plurality of groove structures arranged at intervals (not shown in the figure).

[0084] By providing a groove structure, the electromagnetic properties of the flange surface can be altered, affecting the reflection path and direction of electromagnetic waves, thereby enabling fine-tuning of signal transmission and reception performance. For example, by properly designing the shape, depth, spacing, and other parameters of the groove structure, the reflection path of electromagnetic waves on the flange surface can be altered, allowing more electromagnetic waves from a specific area to be reflected to the area where the antenna body 4 is located, thereby improving the antenna body 4's reception efficiency for electromagnetic waves in a specific direction, better meeting the corresponding usage requirements.

[0085] Further, refer to Figure 1 The flange portion includes a central ring body (not shown in the figure) and a plurality of reflective sheets (not shown in the figure), and the plurality of reflective sheets are arranged at intervals along the circumference of the central ring body; one side edge of the reflective sheet is hinged to the inner circumference of the central ring body around a first axis, and the first axis is perpendicular to the central axis of the central ring body.

[0086] In this embodiment, the flange portion is configured as a structure including a central ring body and a plurality of rotatable and adjustable reflective sheets, which provides greater flexibility for optimizing the performance of the receiving antenna assembly. In practical applications, the equivalent shape and size of the reflective connector 1 can be changed by adjusting the opening and closing angles of the reflective sheet according to different signal transmission and reception requirements, thereby affecting the reflection characteristics of the electromagnetic wave. For example, when it is necessary to enhance the signal in a certain direction, the reflective sheet can be rotated to a suitable angle so that the reflective connector 1 forms a more concentrated reflection of the electromagnetic wave in that direction. This can better adapt to the electromagnetic wave reflection requirements in different directions and achieve precise control and optimization of the signal. In addition, through the synergistic effect of the reflective sheet and the central ring body, the area of ​​the reflection zone can be further expanded, the reflection effect of the electromagnetic wave can be improved, and the signal receiving capability of the antenna body 4 can be enhanced.

[0087] Further, refer to Figure 1 The end face of the central ring body is provided with a plurality of snap-fitting teeth arranged in sequence along the radial direction (not shown in the figure); the reflective joint 1 also includes a support rod (not shown in the figure), one end of the support rod is hinged to a side of the reflective sheet body facing the central ring body around a second axis, the second axis is parallel to the first axis, and the other end of the support rod is provided with a claw structure, which is used to engage with one of the snap-fitting teeth.

[0088] This embodiment provides a feasible solution for positioning the reflector sheet. When adjusting the reflector sheet's angle, the support rod supports and positions the reflector sheet. By engaging the claw structure with the interlocking teeth at different positions, the reflector sheet can be stably fixed at multiple preset angles. This arrangement not only makes it easier for users to quickly adjust, switch, and secure the reflector sheet's angle according to actual needs, but also ensures the structural stability of the reflector connector 1 after adjustment, ensuring stable signal transmission.

[0089] Further, refer to Figure 1 The reflective sheet includes a plurality of first sheets (not shown in the figure) and a plurality of second sheets (not shown in the figure). The plurality of first sheets are arranged at intervals along the inner periphery of the central ring body, and the plurality of second sheets are arranged at intervals along the outer periphery of the central ring body; one side edge of the first sheet is hinged to the inner periphery of the central ring body around a first axis, and the side edge of the second sheet close to the first sheet is hinged to the central ring body around a third axis, and the third axis is perpendicular to the central axis of the central ring body.

[0090] In this embodiment, the reflective sheets are divided into two groups, with the first and second sheets positioned at different radial locations of the central ring. Specifically, the first sheet covers the inner periphery of the central ring, while the second sheet covers the outer periphery. By adjusting the opening and closing angles of the first and second sheets, the shape of the reflective joint 1 can be varied at different radial positions, making the shape adjustment of the reflective joint 1 more refined and diverse. This allows for more precise control of the reflection path and direction of electromagnetic waves, better meeting different practical application requirements and further optimizing the transceiver performance of the receiving antenna assembly.

[0091] Preferably, the first piece and the second piece can be provided with support rods respectively according to the above embodiments to achieve the positioning of the first piece and the second piece, which will not be described in detail here.

[0092] Further, refer to Figure 1 The first sheet and the second sheet are staggered in the circumferential direction of the central ring body.

[0093] Based on the staggered layout between the first and second sheets, the overall structural design of the reflective connector 1 is more compact and reasonable, and is more conducive to the mutual coordination and collaborative operation between the first and second sheets. Specifically, in the direction toward the end face of the central ring body, each second sheet is located between two adjacent first sheets. When the two first sheets are unfolded relative to the central ring body, a gap area will be formed between the two first sheets. At this time, the unfolded second sheet can be used to fill the corresponding gap area, avoiding the occurrence of a reflection blind spot. This staggered layout method not only improves the space utilization of the reflective connector 1, but also ensures the reflection effect while adjusting the reflection path.

[0094] Further, refer to Figure 1 The wire through hole is set as an oblong hole, and the sleeve part can be slidably fitted in the oblong hole.

[0095] Based on the design of this embodiment, the reflection joint 1 has a certain range of motion relative to the housing, so that the position of the reflection joint 1 can be flexibly adjusted according to actual needs to achieve flexible arrangement and installation of the feeder 3, while achieving position adjustment of the electromagnetic wave reflection area.

[0096] Further, refer to Figure 1 A threaded structure (not shown in the figure) is provided at one end of the sleeve portion located outside the housing, and the receiving antenna assembly also includes a connecting nut; the connecting nut is used to be threadedly connected to the threaded structure to lock the reflector joint 1 on the housing.

[0097] Based on the above setting, it can not only ensure that the reflection joint 1 can be firmly locked on the housing after being adjusted to the appropriate position, but also prevent the reflection joint 1 from loosening and shifting due to vibration or external force, thereby ensuring the structural stability of the entire receiving antenna assembly and the stability of the signal reflection effect, but also facilitate the installation and disassembly of the reflection joint 1, thereby improving the convenience of assembly and maintenance.

[0098] Further, refer to Figure 1 The receiving antenna assembly also includes a sealing strip (not shown in the figure), which is attached to the shell and seals the gap between the sleeve portion and the oblong hole.

[0099] The sealing strip can fill the gap between the reflective joint 1 and the wire through hole, which can effectively prevent external impurities such as dust and moisture from entering the interior of the shell and causing damage to components such as the control board 2, feed line 3, and antenna body 4, thereby improving the sealing and reliability of the entire receiving antenna assembly and extending its service life. It also helps to ensure the quality and stability of signal transmission.

[0100] Preferably, a plurality of reflective blocks (not shown in the figure) are detachably embedded on one side of the sealing strip facing the inner cavity of the shell. The reflective blocks can be used in conjunction with the control board 2 and the reflective connector 1 to reflect the electromagnetic waves scattered in the space, thereby further expanding the area of ​​the reflection zone, thereby further improving the stability of signal transmission.

[0101] The present application also provides a monitoring device. Figures 1 to 3 , the monitoring device includes the receiving antenna assembly in any of the above embodiments.

[0102] In this embodiment, the monitoring device may include a baby monitor, etc. In actual applications, the monitoring device generally needs to continuously and stably transmit audio and video signals and other monitoring data to ensure that the user can understand the situation of the monitored object in real time. By adopting the receiving antenna assembly of the above-mentioned embodiment, the monitoring device can reflect more scattered electromagnetic waves in the space and focus them on the area where the antenna body 4 is located, thereby improving the antenna body 4's reception efficiency of electromagnetic waves in all directions and improving the balance of signal strength in all directions. This solves the problem that traditional antennas have good signal strength in some directions and weak signals in other directions, enabling the monitoring device to obtain more stable and efficient signal transmission performance, thereby improving the overall performance of the monitoring device and user experience.

[0103] For the specific structure of the receiving antenna assembly, please refer to the description of the above embodiment. Since the monitoring device in this embodiment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0104] The above description is merely an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A receiving antenna assembly, characterized in that: The receiving antenna assembly includes: A housing, wherein the housing is provided with a wire-passing hole; A reflective connector comprising a sleeve portion and a flange portion, wherein the flange portion is provided at one end of the sleeve portion and extends radially outward, and the flange portion is made of an electromagnetic wave reflecting material; the sleeve portion is passed through the wire through hole, and the flange portion is in contact with the inner cavity wall of the housing; A control panel, the control panel being disposed in the inner cavity of the housing, and the surface layer of the control panel being configured as an electromagnetic wave reflecting material; a feeder, the feeder being disposed in the inner cavity of the housing, one end of the feeder being electrically connected to the control board, and the other end of the feeder extending through the inner cavity of the sleeve portion to the outside of the housing; The antenna body is arranged in the inner cavity of the shell, and one end of the antenna body is electrically connected to the control board.

2. The receiving antenna assembly according to claim 1, characterized in that: The control panel is provided with a connecting through hole, and an edge of the connecting through hole is engaged with an outer peripheral side of the flange portion; And / or, the control board is provided with a first soldering pad, a second soldering pad, and a ground pin, the first soldering pad is electrically connected to the second soldering pad, and one end of the antenna body is soldered to the first soldering pad; the feed line has an inner conductor and an outer conductor coaxially arranged, the inner conductor is soldered to the second soldering pad, and the outer conductor is soldered to the ground pin; And / or, the reflective joint is configured as a hollow rivet made of copper; And / or, the surface of the flange portion is provided with a plurality of groove structures arranged at intervals.

3. The receiving antenna assembly according to claim 2, characterized in that: The feeder further comprises an inner insulating layer, wherein the inner insulating layer is sandwiched between the inner conductor and the outer conductor; And / or, the feeder further comprises an outer sheath, wherein the outer sheath is coated on the surface of the outer conductor; And / or, the feeder also includes an inner insulating layer and an outer sheath, the inner insulating layer is sandwiched between the inner conductor and the outer conductor, and the outer sheath is covered on the surface of the outer conductor; the outer conductor, the inner insulating layer, and the inner conductor extend outward from the end of the outer sheath, the distance between the end of the inner insulating layer and the end of the outer sheath is greater than the distance between the end of the outer conductor and the end of the outer sheath, and the distance between the end of the inner conductor and the end of the outer sheath is greater than the distance between the end of the inner insulating layer and the end of the outer sheath.

4. The receiving antenna assembly according to claim 1, characterized in that: The antenna body is configured as a helical antenna; And / or, the control board is configured as a flexible circuit board.

5. The receiving antenna assembly according to claim 4, characterized in that: The wavelength of the receiving antenna assembly is taken as λ; The total length of the antenna body is ≥λ; And / or, λ / 8≤the radius of the antenna body≤λ / 4; And / or, λ / 4≤the helical angle of the antenna body≤λ / 2.

6. The receiving antenna assembly according to claim 4, characterized in that: A reinforcing plate is attached to one side of the control board.

7. The receiving antenna assembly according to claim 1, characterized in that: The flange portion includes a central ring body and a plurality of reflective sheets, wherein the plurality of reflective sheets are arranged at intervals along the circumference of the central ring body; one side edge of the reflective sheet is hinged to the inner circumference of the central ring body around a first axis, and the first axis is perpendicular to the central axis of the central ring body; And / or, the wire through hole is configured as an oblong hole, and the sleeve portion can be slidably fitted in the oblong hole.

8. The receiving antenna assembly according to claim 7, characterized in that: The end surface of the central ring body is provided with a plurality of sequentially arranged locking teeth along the radial direction; the reflective joint further comprises a support rod, one end of which is hingedly connected to a side surface of the reflective sheet body facing the central ring body around a second axis, the second axis being parallel to the first axis, and the other end of the support rod is provided with a claw structure, the claw structure being used to engage with one of the locking teeth; And / or, the reflective sheet includes a plurality of first sheets and a plurality of second sheets, the plurality of first sheets are arranged at intervals along the inner periphery of the central ring body, and the plurality of second sheets are arranged at intervals along the outer periphery of the central ring body; one side edge of the first sheet is hinged to the inner periphery of the central ring body around the first axis, and one side edge of the second sheet close to the first sheet is hinged to the central ring body around a third axis, and the third axis is perpendicular to the central axis of the central ring body; And / or, one end of the sleeve portion located outside the housing is provided with a threaded structure, and the receiving antenna assembly further comprises a connecting nut; the connecting nut is used to be threadedly connected to the threaded structure to lock the reflective connector on the housing; And / or, the receiving antenna assembly further includes a sealing strip, which is adhered to the housing and seals the gap between the sleeve portion and the oblong hole.

9. The receiving antenna assembly according to claim 8, characterized in that: The first sheet and the second sheet are staggered in the circumferential direction of the central ring.

10. A monitoring device, characterized in that: The monitoring device comprises the receiving antenna assembly according to any one of claims 1 to 9.

Images