Spring antenna and electronic equipment

Abstract

The utility model relates to the technical field of antennas, and discloses a spring antenna and an electronic device. The spring antenna comprises a radiation main body and a supporting part, the supporting part comprises two supporting units; the ends, facing the radiation main body, of the two supporting units are connected with the two end portions of the radiation main body in a one-to-one correspondence mode. The other ends, away from the radiation body, of the two supporting units extend in the supporting direction and are used for being connected with a circuit board, so that an installation gap is formed between the radiation body and the circuit board. According to the utility model, the two supporting units are arranged to provide uniform support for the radiation main body, thereby reducing deformation or damage caused by external force (such as vibration, impact, falling and the like), reducing the risk that the radiation main body deviates from the initial installation position, improving the radiation performance of the antenna, stabilizing the working frequency of the antenna, and prolonging the service life of the antenna. The problems that a spring antenna in the prior art is poor in shock resistance and prone to deviating from an initial installation position when being impacted by external force are solved.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a spring antenna and electronic device. Background Technology

[0002] Currently, consumer wireless electronic products typically use built-in metal springs as internal antennas. There are two main layout methods for this spring antenna and the circuit board: one is to fix the radiating body of the spring antenna tightly to the circuit board; the other utilizes the internal three-dimensional space of the circuit board structure to arrange the radiating body of the spring antenna at an interval, creating a mounting gap to increase the clearance area of ​​the spring antenna. Furthermore, the process of fixing this spring antenna to the circuit board usually involves: first, inserting the mounting end of the spring antenna into the mounting hole of the circuit board, and then, while holding the spring antenna, soldering the spring wire to the circuit board. When soldering the antenna to the circuit board, the spring antenna is prone to tilting relative to the circuit board, causing the final installation position of the spring antenna to deviate from the target position, thus affecting the resonant frequency of the spring antenna; at the same time, it also prevents automated assembly, reducing product manufacturing efficiency.

[0003] Fixing the radiating element tightly to the circuit board can easily result in the antenna being too close to the components and traces on the board. This leads to insufficient antenna clearance, resulting in low antenna radiation efficiency, short communication distance, and dead zones. Furthermore, throughout the product lifecycle, each replacement of components or minor adjustments to the traces on the circuit board significantly affects the antenna's resonant frequency, causing repetitive antenna debugging work and impacting development efficiency.

[0004] In methods where the radiating element and circuit board are spaced apart, the radiating element is typically soldered to the circuit board via a bent section at one end. While this spaced arrangement increases the antenna clearance, it can easily cause the radiating element to deviate from its initial installation position when subjected to external impacts, especially when the impact point is close to the radiating element. This reduces the radiation performance of the spring antenna, alters its resonant frequency, and renders the antenna incompatible with the product.

[0005] Therefore, improving the shock resistance of spring antennas is an urgent problem that the industry needs to solve. Utility Model Content

[0006] This invention provides a spring antenna and electronic device to solve the problem that existing spring antennas have poor shock resistance and are prone to deviating from their initial installation position when subjected to external impact.

[0007] This utility model provides a spring antenna, comprising:

[0008] Radiation source;

[0009] The support component includes two support units; one end of each support unit facing the radiating body is connected to one of the two ends of the radiating body respectively; the other ends of each support unit away from the radiating body extend along the support direction for connection with the circuit board, thereby forming an installation gap between the radiating body and the circuit board.

[0010] The spring antenna provided by this utility model further includes a limiting component, the limiting component comprising:

[0011] Two limiting units are respectively disposed on the two supporting units, and are used to contact the side of the circuit board facing the radiating body.

[0012] According to the spring antenna provided by this utility model, the support unit includes:

[0013] The support segment has one end connected to the end of the radiating body, and the other end extends along the support direction and is connected to one end of the limiting unit; the other end of the limiting unit extends along a first direction, which intersects the support direction.

[0014] The connecting segment has one end connected to the other end of the limiting unit, and the other end extends along the support direction for mounting on the circuit board.

[0015] According to the spring antenna provided by this utility model, the angles formed by the two limiting units and the corresponding connecting segments are different.

[0016] According to the spring antenna provided by this utility model, two support units are arranged at intervals at both ends of the radiating body along the central axis of the radiating body.

[0017] According to the spring antenna provided by this utility model, the radiating body includes:

[0018] Elastic part;

[0019] The first extension section has one end connected to one end of the elastic part, and the other end extends along the central axis of the elastic part and is connected to one of the support units.

[0020] The second extension has one end connected to the other end of the elastic part, and the other end extends along the central axis of the elastic part and is connected to another support unit.

[0021] This utility model also provides an electronic device, including:

[0022] The spring antenna described in any of the above items;

[0023] A circuit board, on which the spring antenna is mounted.

[0024] According to the electronic device provided by this utility model, one of the two support units is fixedly connected to the circuit board, and the other is detachably connected to the circuit board.

[0025] According to the electronic device provided by this utility model, the circuit board has the following features:

[0026] A limiting hole is provided, and one of the support units is installed in the limiting hole and welded to the circuit board for fixation;

[0027] The limiting seam, and another support unit is detachably connected to the limiting seam.

[0028] According to the electronic device provided by this utility model, the line connecting one end of the limiting hole and the limiting slit is parallel to the central axis of the radiating body of the spring antenna; the other end of the limiting slit extends along the central axis of the radiating body.

[0029] The spring antenna provided by this utility model features two support units. The ends of the two support units facing the radiating body are connected to the two ends of the radiating body respectively. The ends of the two support units away from the radiating body extend along the support direction and are used to connect to the circuit board. This design not only allows the radiating body to be mounted on one side of the circuit board using the two support units, but also creates a mounting gap between the radiating body and the circuit board, increasing the antenna clearance area and improving antenna radiation performance. It also avoids the need for repeated antenna adjustments due to local changes to single-board components or fine-tuning of circuitry. Furthermore, wiring and the addition of low-height single-board components can be performed within the mounting gap, which is significant for miniaturized consumer products. By adjusting the connection positions of the two support units relative to the circuit board, the size of the mounting gap in the support direction can be adjusted within a certain range, expanding the antenna's application range. When mounting the spring antenna onto the circuit board, the two ends of the radiating body are connected to the circuit board through two support units. The two support units work together to support the two ends of the radiating body. Compared with the traditional method of mounting one end of the radiating body onto the circuit board through a bent section, the present invention provides uniform support for the radiating body by mounting both ends of the radiating body onto the circuit board through support units. This reduces deformation or damage caused by external forces (such as vibration, impact, drop, etc.), reduces the risk of the radiating body deviating from its initial installation position, improves the antenna's shock resistance and radiation performance, and stabilizes the antenna's operating frequency. It solves the problem of poor shock resistance and easy deviation from the initial installation position of existing spring antennas when subjected to external impact.

[0030] The electronic device provided by this invention includes the aforementioned spring antenna, and therefore has at least the aforementioned advantages. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the electronic device provided by this utility model.

[0033] Figure 2 This is a schematic diagram of the electronic device provided by this utility model from the perspective of the main view.

[0034] Figure 3 This is a top-view structural diagram of the electronic device provided by this utility model.

[0035] Figure 4 This is a schematic diagram of the structure of the spring antenna provided by this utility model.

[0036] Figure 5 This is a schematic diagram of the circuit board provided by this utility model.

[0037] Figure label:

[0038] 100. Radiation body; 110. Elastic part; 120. First extension section; 130. Second extension section;

[0039] 200, Support component; 210, First support unit; 220, Second support unit; 211, First support section; 212, First connecting section; 221, Second support section; 222, Second connecting section;

[0040] 300. Limiting component; 310. First limiting unit; 320. Second limiting unit;

[0041] 400, Circuit board; 410, Limiting hole; 420, Limiting gap. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] The following is combined Figures 1 to 5 The structure of the spring antenna and electronic device of this utility model is described in detail.

[0044] like Figures 1 to 4 As shown, a specific embodiment of the first aspect of this utility model provides a spring antenna. The spring antenna includes a radiating body 100 and a supporting component 200; the supporting component 200 includes two supporting units; one end of each supporting unit facing the radiating body 100 is respectively connected to one of the two ends of the radiating body 100; the other ends of each supporting unit away from the radiating body 100 extend along the supporting direction and are used to connect to a circuit board 400, so that an installation gap is formed between the radiating body 100 and the circuit board 400.

[0045] In this embodiment, two support units are provided. The ends of the two support units facing the radiating body 100 are respectively connected to the two ends of the radiating body 100. The other ends of the two support units, away from the radiating body 100, extend along the support direction and are used to connect to the circuit board 400. This not only allows the radiating body 100 to be mounted on one side of the circuit board 400 using the two support units, but also creates a mounting gap between the radiating body 100 and the circuit board 400, improving the antenna mounting gap and enhancing antenna radiation performance. It also avoids the problem of repeatedly debugging the antenna due to local changes in single-board components or fine-tuning of circuitry. Simultaneously, wiring and the addition of low-height single-board components can be performed within the mounting gap, which is significant for miniaturized consumer products. By adjusting the connection positions of the two support units relative to the circuit board 400, the size of the mounting gap in the support direction can also be adjusted within a certain range, expanding the antenna's usability. When the spring antenna is mounted on the circuit board 400, the two ends of the radiating body 100 are respectively connected to the circuit board 400 through two support units. The two support units work together to support the two ends of the radiating body 100. Compared with the traditional method of mounting one end of the radiating body to the circuit board through a bent section, the method of mounting the two ends of the radiating body 100 to the circuit board 400 through support units in this embodiment can provide uniform support for the radiating body 100, reduce deformation or damage caused by external forces (such as vibration, impact, drop, etc.), reduce the risk of the radiating body 100 deviating from the initial installation position, not only improve the antenna's shock resistance, but also improve the antenna's radiation performance, and stabilize the antenna's operating frequency. This solves the problem of poor shock resistance and easy deviation from the initial installation position when subjected to external impact in the existing spring antenna technology.

[0046] For ease of description, the two support units will be named the first support unit 210 and the second support unit 220, respectively.

[0047] like Figure 1 , Figure 2 and Figure 4 As shown, specifically, the spring antenna includes a radiating body 100 and a supporting component 200; the supporting component 200 includes a first supporting unit 210 and a second supporting unit 220; one end of the first supporting unit 210 and the second supporting unit 220 facing the radiating body 100 is respectively connected to the two ends of the radiating body 100; the other end of the first supporting unit 210 and the second supporting unit 220 both extend along the supporting direction and are used to connect with the circuit board 400, so that an installation gap is formed between the radiating body 100 and the circuit board 400.

[0048] It should be noted that the support direction can be up and down, left and right, or front and back. Optionally, in this embodiment, the support direction is up and down, and the direction of the central axis of the radiating body 100 is left and right.

[0049] like Figure 2 and Figure 4 As shown, the radiating body 100 further includes an elastic portion 110, a first extension 120, and a second extension 130. One end of the first extension 120 is connected to one end of the elastic portion 110, and the other end of the first extension 120 extends along the central axis of the elastic portion 110 and is connected to a support unit. One end of the second extension 130 is connected to the other end of the elastic portion 110, and the other end of the second extension 130 extends along the central axis of the elastic portion 110 and is connected to another support unit. Specifically, one end of the first extension 120 is connected to one end of the elastic portion 110, and the other end of the first extension 120 extends along the central axis of the elastic portion 110 and is connected to the first support unit 210. One end of the second extension 130 is connected to the other end of the elastic portion 110, and the other end of the second extension 130 extends along the central axis of the elastic portion 110 and is connected to the second support unit 220.

[0050] In this embodiment, by providing a first extension segment 120 and a second extension segment 130 extending along the central axis of the elastic portion 110 and connected to both ends of the elastic portion 110, the deformation of the elastic portion 110 can be adjusted by regulating the spacing between the first extension segment 120 and the second extension segment 130, thereby adjusting the resonant frequency of the spring antenna. This makes the spring antenna suitable for different application scenarios, expanding its application range. Furthermore, the first extension segment 120 and the second extension segment 130 can also optimize the antenna's radiation directivity, enabling it to effectively receive and transmit signals in multiple directions.

[0051] Specifically, the elastic part 110 can be formed by continuously winding or bending a metal wire. The elastic part 110 has at least one coil or at least one bend; the elastic part 110 can deform in its own central axis direction. The resonant frequency of the spring antenna can be adjusted by adjusting the gap between two adjacent coils or two adjacent bends, making the spring antenna suitable for different scenarios.

[0052] Preferably, the elastic portion 110 is helical and includes at least one coil. The helical elastic portion 110 increases the electrical length of the antenna through the coil structure, enabling it to achieve a lower resonant frequency within a smaller physical size, thereby improving the reception and transmission capabilities of low-frequency signals.

[0053] Specifically, the first support unit 210 includes a first support segment 211; one end of the first extension segment 120 is connected to the left end of the elastic part 110, and the other end extends horizontally to the left and is connected to the upper end of the first support segment 211. The second support unit 220 includes a second support segment 221; one end of the second extension segment 130 is connected to the right end of the elastic part 110, and the other end extends horizontally to the right and is connected to the upper end of the second support segment 221.

[0054] Optionally, the first extension 120, the elastic portion 110, and the second extension 130 are integrally formed, each belonging to a different part of a single metal wire. The elastic portion 110 is formed by spiral winding in the middle of the metal wire, and a section is reserved at each end of the metal wire to form the first extension 120 and the second extension 130, respectively. This design reduces the number of parts and assembly steps, lowering production costs and assembly complexity. The integral molding design avoids stress concentration at the joints, improving the overall structural strength and durability, and extending service life. The elastic portion 110, through its spiral winding design, provides good elastic deformation capability, adapting to external pressure or vibration, and playing a buffering and shock-absorbing role.

[0055] When mounting existing spring antennas onto a circuit board, the mounting end of the spring antenna is typically inserted into the mounting hole of the circuit board first, and then the spring wire is soldered to the circuit board while holding the spring antenna in place. This mounting method easily leads to the spring antenna tilting relative to the circuit board, causing the final mounting position of the spring antenna to deviate from the target position and affecting the resonant frequency of the spring antenna. Furthermore, it cannot achieve automated assembly, reducing product manufacturing efficiency.

[0056] To address any of the aforementioned problems, in some embodiments, the spring antenna further includes a limiting component 300; the limiting component 300 includes two limiting units; the two limiting units are respectively disposed on two supporting units for contacting one side of the circuit board 400 facing the radiating body 100. Specifically, the limiting component 300 includes a first limiting unit 310 and a second limiting unit 320; the first limiting unit 310 is disposed on the first supporting unit 210; the second limiting unit 320 is disposed on the second supporting unit 220.

[0057] In this embodiment, by setting a first limiting unit 310 connected to the first support unit 210 and a second limiting unit 320 connected to the second support unit 220, when the first support unit 210 and the second support unit 220 are respectively inserted into the mounting holes of the circuit board 400, the first limiting unit 310 and the second limiting unit 320 can cooperate to limit the upper and lower positions, preventing the first support unit 210 and the second support unit 220 from continuously descending without being fixed; at the same time, the first limiting unit 310 and the second limiting unit 320 also limit the depth of the support unit inserted into the circuit board 400, preventing the installation position of the radiating body 100 from deviating from the target installation position due to changes in the insertion depth, thus affecting the resonant frequency of the antenna. It can also make the installation process simpler and facilitate automated installation.

[0058] Understandably, the first limiting unit 310 has a dimension larger than the diameter of the mounting hole in the radial direction. The second limiting unit 320 also has a dimension larger than the diameter of the mounting hole in the radial direction.

[0059] Optionally, the first limiting unit 310 can be a limiting protrusion or a limiting ring; the limiting protrusion is disposed on the side of the first support unit 210; the limiting ring is sleeved on the outside of the first support unit 210. When the first support unit 210 is inserted into the mounting hole of the circuit board 400, both the limiting protrusion and the limiting ring are located outside the mounting hole and in contact with the side of the circuit board 400 facing the radiating body 100.

[0060] Optionally, the second limiting unit 320 can be a limiting protrusion or a limiting ring; the limiting protrusion is disposed on the side of the second support unit 220; the limiting ring is sleeved on the outside of the second support unit 220. When the second support unit 220 is inserted into the mounting hole of the circuit board 400, both the limiting protrusion and the limiting ring are located outside the mounting hole and in contact with the side of the circuit board 400 facing the radiating body 100.

[0061] like Figure 2 and Figure 4 As shown, in some embodiments, the support unit includes a support segment and a connecting segment; one end of the support segment is connected to the end of the radiating body 100, and the other end extends along the support direction and is connected to one end of the limiting unit; the other end of the limiting unit extends along a first direction, which intersects the support direction. One end of the connecting segment is connected to the other end of the limiting unit, and the other end is used to extend along the support direction for mounting on the circuit board 400.

[0062] In this embodiment, the support segment is connected to the radiating body 100 and to the connecting segment via a limiting unit, forming a stable support structure that enhances overall rigidity and prevents deformation or loosening. The extension directions of the limiting unit and the connecting segment are coordinated with the support direction, effectively utilizing space and suitable for compact layouts.

[0063] Optionally, the first direction may be parallel to the direction of the central axis of the radiating body 100.

[0064] Specifically, the first support unit 210 includes a first support segment 211 and a first connecting segment 212; one end of the first support segment 211 is connected to one end of the radiating body 100, and the other end of the first support segment 211 extends along the support direction and is connected to one end of the first limiting unit 310; the other end of the first limiting unit 310 extends along the first direction; one end of the first connecting segment 212 is connected to the other end of the first limiting unit 310, and the other end of the first connecting segment 212 is used to extend along the support direction and is used to be mounted on the circuit board 400.

[0065] In this embodiment, the first support segment 211 is connected to the radiating body 100 and is connected to the first connecting segment 212 through the first limiting unit 310, forming a stable support structure that enhances overall rigidity and prevents deformation or loosening. The extension directions of the first limiting unit 310 and the first connecting segment 212 are designed in coordination with the support direction, which can effectively utilize space and is suitable for compact layout.

[0066] Optionally, the first support segment 211, the first limiting unit 310, and the first connecting segment 212 can be integrally formed, which can further improve the stability of the structure. Specifically, the left end of the first extension segment 120 is bent downward to form the first support segment 211, and the lower end of the first support segment 211 is bent to the left or right to form the first limiting unit 310; the end of the first limiting unit 310 away from the first support segment 211 is bent downward to form the first connecting segment 212. With this design, the height of the first support segment 211 can be adjusted by adjusting the length of the first limiting unit 310, thereby adjusting the vertical height of the installation gap.

[0067] Specifically, the second support unit 220 includes a second support section 221 and a second connecting section 222; one end of the second support section 221 is connected to the other end of the radiating body 100, and the other end of the second support section 221 extends along the support direction and is connected to one end of the second limiting unit 320; the other end of the second limiting unit 320 extends along the first direction; one end of the second connecting section 222 is connected to the other end of the second limiting unit 320, and the other end of the second connecting section 222 extends along the support direction for mounting on the circuit board 400.

[0068] In this embodiment, the two ends of the radiating body 100 are connected to the first support segment 211 and the second support segment 221 respectively, which distributes the center of gravity of the radiating body 100, thereby improving support stability and seismic resistance. Furthermore, the second support segment 221 is connected to the second connecting segment 222 via the second limiting unit 320, forming a stable support structure that enhances overall rigidity and prevents deformation or loosening. The extension direction of the second limiting unit 320 and the extension direction of the second connecting segment 222 are coordinated with the support direction, effectively utilizing space and suitable for compact layouts.

[0069] Optionally, the second support segment 221, the second limiting unit 320, and the second connecting segment 222 can be integrally formed, which can further improve the stability of the structure. Specifically, the right end of the second extension segment 130 is bent downward to form the second support segment 221, and the lower end of the second support segment 221 is bent to the left or right to form the second limiting unit 320; the end of the second limiting unit 320 away from the second support segment 221 is bent downward to form the second connecting segment 222. With this design, the height of the second support segment 221 can be adjusted by adjusting the length of the second limiting unit 320, thereby adjusting the vertical height of the installation gap.

[0070] Furthermore, the angles formed by the two limiting units and their corresponding connecting segments are different. This design serves to prevent mistakes and facilitates automated assembly.

[0071] Specifically, the first limiting unit 310 and the first connecting segment 212 form a first included angle α, and the second limiting unit 320 and the second connecting segment 222 form a second included angle β; the degree of the first included angle α and the degree of the second included angle β are different.

[0072] Optionally, one of the degree measure of the first included angle α and the second included angle β can be a right angle, while the other can be a non-right angle.

[0073] In some embodiments, two support units are spaced apart at both ends of the radiating body 100 along its central axis. Specifically, along the central axis of the radiating body 100, a first support unit 210 and a second support unit 220 are spaced apart at the left and right ends of the radiating body 100, providing symmetrical support forces to ensure the stability of the radiating body 100 and prevent tilting or deformation. The spaced arrangement of the support units along the central axis makes the force distribution on the radiating body 100 more uniform, avoiding localized stress concentration and improving the overall structural durability. The end supports effectively reduce the vibration generated by the radiating body 100 during operation, reducing the negative impact of vibration on the circuit board 400 or other connecting components.

[0074] Preferably, the spring antenna of this embodiment is prepared by winding and bending a metal wire. Specifically, the spring antenna includes an elastic part 110; the elastic part 110 has a helical structure and includes at least one coil. The left end of the elastic part 110 extends to the left in the left-right direction to form a first extension segment 120, and the right end of the elastic part 110 extends to the right in the left-right direction to form a second extension segment 130. The left end of the first extension segment 120 is bent downward to form a first support segment 211, the lower end of the first support segment 211 is bent to the left to form a first limiting unit 310, and the left end of the first limiting unit 310 is bent downward to form a first connecting segment 212, which is used for mounting on the circuit board 400. The right end of the second extension segment 130 is bent downward to form a second support segment 221, the lower end of the second support segment 221 is bent to the left to form a second limiting unit 320, and the left end of the second limiting unit 320 is bent downward to form a second connecting segment 222, which is used for mounting on the circuit board 400. When the first connecting segment 212 and the second connecting segment 222 are installed on the circuit board 400, the first limiting unit 310 and the second limiting unit 320 are both used to contact the upper side of the circuit board 400 to form upper and lower limits on the connecting segments and prevent the antenna from sinking.

[0075] like Figures 1 to 3 As shown, a specific embodiment of the second aspect of this utility model provides an electronic device. This electronic device includes a spring antenna and a circuit board 400 as described in any of the above embodiments. The spring antenna is mounted on the circuit board 400.

[0076] Since the electronic device in this embodiment includes the spring antenna of any of the above embodiments, it has at least the advantages described above, which will not be repeated here.

[0077] Furthermore, one of the two support units is fixedly connected to the circuit board 400, while the other is detachably connected to it. Specifically, the first support unit 210 of the spring antenna is fixedly connected to the circuit board 400, while the second support unit 220 is detachably connected to the circuit board 400. The fixed connection of the first support unit 210 to the circuit board 400 provides a stable support foundation, ensuring the main structure of the spring antenna is robust and not easily loosened or shifted. The detachable connection of the second support unit 220 to the circuit board 400 facilitates installation, debugging, and maintenance. This detachable connection design allows for adjustment of the antenna's position or angle according to actual needs, improving design flexibility and adaptability.

[0078] In addition, considering that the current method of fixing the antenna to the circuit board 400 is usually welding, this embodiment fixes the first support unit 210 to the circuit board 400 and detachably connects the second support unit 220 to the circuit board 400, which can reduce one solder point and reduce assembly costs.

[0079] It should be noted that the fixed connection method between the first support unit 210 and the circuit board 400 includes, but is not limited to, welding.

[0080] like Figure 5 As shown, furthermore, the circuit board 400 has a limiting hole 410 and a limiting slot 420; one support unit is installed in the limiting hole 410 and welded to the circuit board 400; the other support unit is detachably connected to the limiting slot 420. Specifically, the first support unit 210 is installed in the limiting hole 410 and welded to the circuit board 400; the second support unit 220 is detachably connected to the limiting slot 420. By assembling the limiting slot 420 and the second support unit 220, the fault tolerance of the antenna installation can be improved, the installation accuracy can be reduced, the antenna processing accuracy can be reduced, and the applicable scenarios of the antenna can be expanded.

[0081] Specifically, the first connecting segment 212 is inserted into the limiting hole 410 and welded to the circuit board 400. At this time, the first limiting unit 310 is located on the upper side of the circuit board 400 and is in contact with the circuit board 400. The second connecting segment 222 is inserted into the limiting slot 420. The assembly requirement of the second connecting segment 222 and the limiting slot 420 is that they need to work together with the first connecting segment 212 and the limiting hole 410 to provide stable support for the radiation body 100.

[0082] It is understandable that the width of the limiting slot 420 is not greater than the diameter of the second connecting segment 222, so as to ensure that the second connecting segment 222 is interference-fitted with the limiting slot 420 in the width direction of the limiting slot 420, and to ensure that when the second connecting segment 222 is assembled with the limiting slot 420, it can provide stable support for the radiation body 100.

[0083] Furthermore, the line connecting one end of the limiting hole 410 and the limiting slot 420 is parallel to the central axis of the radiating body 100 of the spring antenna; the other end of the limiting slot 420 extends along the central axis of the radiating body 100. With this design, the radiating body 100 can be stretched or shortened along its own axis by adjusting the installation position of the second connecting section 222 relative to the limiting slot 420, to suit different scenarios.

[0084] Furthermore, circuit board 400 includes, but is not limited to, printed circuit boards.

[0085] Furthermore, electronic devices include smart gates, wireless access control systems, wireless doorbells, radios, walkie-talkies, or remote controls.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spring antenna, characterized in that, include: Radiation subject (100); The support component (200) includes two support units; The two support units are connected to the two ends of the radiating body (100) respectively at one end and the other end of the two support units away from the radiating body (100) along the support direction for connection with the circuit board (400), so that an installation gap is formed between the radiating body (100) and the circuit board (400).

2. The spring antenna according to claim 1, characterized in that, It also includes a limiting component (300), said limiting component (300) comprising: Two limiting units are respectively disposed on the two supporting units for contacting the side of the circuit board (400) facing the radiating body (100).

3. The spring antenna according to claim 2, characterized in that, The support unit includes: The support segment has one end connected to the end of the radiating body (100), and the other end extends along the support direction and is connected to one end of the limiting unit; the other end of the limiting unit extends along a first direction, which intersects the support direction. The connecting segment has one end connected to the other end of the limiting unit, and the other end is used to extend along the support direction for mounting on the circuit board (400).

4. The spring antenna according to claim 3, characterized in that, The angles formed by the two limiting units and the corresponding connecting segments are different in degree.

5. The spring antenna according to claim 1, characterized in that, Along the central axis of the radiating body (100), two support units are arranged at intervals at both ends of the radiating body (100).

6. The spring antenna according to any one of claims 1 to 5, characterized in that, The radiation body (100) includes: Elastic part (110); The first extension section (120) is connected at one end to one end of the elastic part (110), and at the other end extends along the central axis of the elastic part (110) and is connected to one of the support units. The second extension (130) is connected at one end to the other end of the elastic part (110), and at the other end extends along the central axis of the elastic part (110) and is connected to another support unit.

7. An electronic device, characterized in that, include: The spring antenna according to any one of claims 1 to 6; Circuit board (400), on which the spring antenna is mounted.

8. The electronic device according to claim 7, characterized in that, One of the two support units is fixedly connected to the circuit board (400), and the other is detachably connected to the circuit board (400).

9. The electronic device according to claim 8, characterized in that, The circuit board (400) has the following openings: A limiting hole (410) is provided, and one of the support units is installed in the limiting hole (410) and welded to the circuit board (400); The limiting seam (420) is another support unit that is detachably connected to the limiting seam (420).

10. The electronic device according to claim 9, characterized in that, The line connecting one end of the limiting hole (410) and the limiting slot (420) is parallel to the central axis of the radiating body (100) of the spring antenna; the other end of the limiting slot (420) extends along the central axis of the radiating body (100).

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