CN209804883U - Bluetooth antenna structure and bluetooth wearing equipment - Google Patents

Abstract

The utility model provides a bluetooth antenna structure and bluetooth wearing equipment, this bluetooth antenna structure include the shell and install the mainboard in the shell, and the shell includes the frame and installs the apron on the frame, is equipped with the antenna on the mainboard and presents a little, is equipped with the metal connecting piece on the apron, and bluetooth antenna structure still includes the shell fragment antenna, and the one end and the antenna of shell fragment antenna present a spot welding and link to each other, and the other end of shell fragment antenna supports holds the metal connecting piece. The utility model discloses a set up the antenna on the mainboard and present a little, and use frame and apron to constitute the shell, set up the metal connecting piece on the apron, and set up the shell fragment antenna and present the antenna and link to each other with the metal connecting piece, thereby can directly guide the metal connecting piece of shell with bluetooth signal through the shell fragment antenna, form bluetooth antenna through shell fragment antenna and metal connecting piece combination, thereby can well design the shape structure of shell fragment antenna and metal connecting piece, it is little to the shell dependence, and be difficult for receiving the influence of electron device in the shell, signal strength is better.

Description

Bluetooth antenna structure and bluetooth wearing equipment

Technical Field

The utility model belongs to the technical field of the bluetooth antenna, more specifically say, relate to a bluetooth antenna structure, use this bluetooth antenna structure's bluetooth wearing equipment.

background

wearing equipment, like equipment such as intelligent bracelet, intelligent wrist-watch, wireless earphone, generally all need use the bluetooth to carry out data signal transmission. The strength of the bluetooth signal is directly related to the distance of transmission and the stability of the transmitted data. The design of the Bluetooth antenna structure directly influences the strength of Bluetooth signals. Currently, bluetooth antennas are mainly of a Board-mounted type, a chip-mounted type, a wire-lead type, a PCB (short for Printed Circuit Board) or an FPC (short for FPC for Flexible Printed Circuit Board). And because the volume of wearing equipment is mostly less, lead to its antenna structure and overall arrangement restriction great, use patch antenna more. However, the signal distance of the structure is often only about 10 meters, and the signal strength is small. Therefore, some current wearable devices often use a metal shell, and a metal elastic sheet or a wire is used to connect the antenna feed point with the metal shell, so that the metal shell serves as an antenna to improve signal strength. However, the signal strength of the antenna of such a structure generally depends on the shape of the housing and is easily affected by the electronics inside the housing, resulting in poor signal stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bluetooth antenna structure and bluetooth wearing equipment to the bluetooth antenna signal intensity of the wearing equipment who exists relies on the shape of shell among the solution prior art, and receives the problem of the inside electron device's of shell influence easily.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a bluetooth antenna structure, including the shell with install in mainboard in the shell, the shell includes the frame and installs in apron on the frame, be equipped with the antenna on the mainboard and present the point, be equipped with the metal connection piece on the apron, bluetooth antenna structure still includes the shell fragment antenna, the one end of shell fragment antenna with the antenna is presented the spot welding and is linked to each other, the other end of shell fragment antenna supports holds the metal connection piece.

Further, the frame is a metal frame, and the metal connecting sheet is connected with the frame.

Furthermore, one end of the metal connecting sheet extends out of the side edge of the cover plate, a positioning groove is formed in the position, corresponding to the metal connecting sheet, of the inner side of the frame, and one end of the metal connecting sheet is arranged in the positioning groove.

Furthermore, the elastic sheet antenna comprises a connecting section connected with the antenna feed point in a welding mode, a bent section bent and extended from the connecting section, and a supporting section used for supporting the metal connecting sheet, wherein the supporting section is connected with the bent section.

Furthermore, the bluetooth antenna structure still include with control panel, bluetooth chip and the auxiliary antenna that is used for bluetooth communication that mainboard electrical property links to each other, bluetooth chip install in the mainboard or on the control panel, be equipped with on the mainboard with the radio frequency end electrical property of bluetooth chip links to each other's first branch circuit and second branch circuit, the antenna is presented some and is located on the first branch circuit, auxiliary antenna install in on the control panel, the second branch circuit with auxiliary antenna electrical property links to each other.

Furthermore, a filter is further installed on the mainboard, one end of the filter is connected with the radio frequency end of the Bluetooth chip, and the other end of the filter is electrically connected with the first branch circuit and the second branch circuit.

furthermore, a first matching circuit is further arranged on the main board, one end of the first matching circuit is connected with the antenna feed point, and the other end of the first matching circuit is connected with the first branch circuit.

Furthermore, a second matching circuit is further arranged on the control board, one end of the second matching circuit is connected with the auxiliary antenna, and the other end of the second matching circuit is connected with the second branch circuit.

Further, the auxiliary antenna is a patch antenna, the Bluetooth chip is installed on the control board, and the distance between the edge of the Bluetooth chip and the edge of the patch antenna is greater than or equal to 8.0 mm.

The utility model provides a bluetooth antenna structure's beneficial effect lies in: the utility model discloses a set up the antenna on the mainboard and present a little, and use frame and apron to constitute the shell, set up the metal connecting piece on the apron, and set up the shell fragment antenna and present the antenna and link to each other with the metal connecting piece, thereby can directly guide the metal connecting piece of shell with bluetooth signal through the shell fragment antenna, form bluetooth antenna through shell fragment antenna and metal connecting piece combination, thereby can well design the shape structure of shell fragment antenna and metal connecting piece, it is little to the shell dependence, and be difficult for receiving the influence of electron device in the shell, signal strength is better.

another object of the utility model is to provide a bluetooth wearing equipment, include as above bluetooth antenna structure.

The utility model provides a bluetooth wearing equipment's beneficial effect lies in: the utility model discloses a bluetooth wearing equipment has adopted above-mentioned bluetooth antenna structure, can well design the shape structure of shell fragment antenna and metal connecting piece, and is little to the shell dependence, and is difficult for receiving electronic device's in the shell influence, and signal strength is better, and then can promote bluetooth wearing equipment send-receive signal's distance and stability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a main board of a bluetooth antenna structure according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a dome antenna of a bluetooth antenna structure according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a frame of a bluetooth antenna structure according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a cover plate of a bluetooth antenna structure according to an embodiment of the present invention;

Fig. 5 is a schematic bottom view of a cover plate of a bluetooth antenna structure according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the structural principle of the bluetooth antenna structure provided by the embodiment of the present invention

Fig. 7 is a schematic structural diagram of a control board of a bluetooth antenna structure according to a third embodiment of the present invention;

Fig. 8 is the embodiment of the utility model provides a bluetooth wearing equipment's structure principle sketch map.

Wherein, in the drawings, the reference numerals are mainly as follows:

100-a bluetooth wearable device; 10-a bluetooth antenna structure; 11-a main antenna; 12-a dome antenna; 121-a connecting segment; 122-a curved section; 123-a sustaining segment; 13-a housing; 131-a frame; 1310-positioning grooves; 132-a cover plate; 133-metal connection pieces; 1330-opening a hole; 134-battery jar; 15-an electrically conductive wire;

20-a main board; 21-antenna feed point; 22-a filter; 23-a first branch circuit; 24-a second subcircuit; 25-a first matching circuit; 26-a radio frequency base;

30-a control panel; 31-antenna end; 32-a master control area; 33-a first side; 34-a second side edge;

41-Bluetooth chip; 42-an auxiliary antenna; 42 a-patch antenna; 43-a second matching circuit; 44-slot position;

51-a battery; 52-a sound emitting unit; 521-a first earplug; 522-a second earplug; 531 — first conductive line; 532-second conducting wire; 54-charging port.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The first embodiment is as follows:

Referring to fig. 1 to 5, a bluetooth antenna structure according to the present invention will be described. The bluetooth antenna structure comprises a housing 13 and a motherboard 20 installed in the housing 13, wherein the motherboard 20 is supported and protected by the housing 13. The housing 13 includes a frame 131 and a cover 132 mounted on the frame 131, so that the cover 132 is supported by the frame 131 and installation of devices into the housing 13 is facilitated. The main board 20 is provided with an antenna feed point 21, the cover plate 132 is provided with a metal connecting sheet 133, the bluetooth antenna structure further comprises a spring plate antenna 12, one end of the spring plate antenna 12 is connected with the antenna feed point 21 in a welding mode, and the other end of the spring plate antenna 12 abuts against the metal connecting sheet 133; the antenna feed point 21 can be connected with the metal connecting sheet 133 through the dome antenna 12, so that an antenna signal is guided to the shell 13, and the signal strength is improved; in addition, the structure can change the shapes and designs of the elastic sheet antenna 12 and the metal connecting sheet 133 well, reduce dependence on the shape of the shell 13, is not easily influenced by electronic devices in the shell 13, improves signal strength, and further improves signal transmission distance and stability.

The utility model provides a bluetooth antenna structure, compared with the prior art, the utility model discloses a set up the antenna on mainboard 20 and present a little 21, and use frame 131 and apron 132 to constitute shell 13, set up metallic interconnect piece 133 on apron 132, and set up shell fragment antenna 12 and present a little 21 with the antenna and link to each other with metallic interconnect piece 133, thereby can directly guide the bluetooth signal to shell 13's metallic interconnect piece 133 through shell fragment antenna 12 on, form bluetooth antenna through shell fragment antenna 12 and metallic interconnect piece 133 combination, thereby can well design the shape structure of shell fragment antenna 12 and metallic interconnect piece 133, it is little to shell 13 dependence, and be difficult for receiving electronic device's in the shell 13 influence, signal strength is better.

Further, referring to fig. 3 to fig. 5, as a specific embodiment of the bluetooth antenna structure provided by the present invention, the frame 131 is a metal frame, and the metal connecting sheet 133 is connected to the frame 131. The frame 131 is a metal frame, which not only increases the strength of the housing 13, but also connects the metal connecting sheet 133 to the frame 131, so that the frame 131 also becomes a part of the antenna, thereby further improving the signal strength and the signal transmission distance and stability.

further, please refer to fig. 3 to 5, as a specific embodiment of the bluetooth antenna structure provided by the present invention, one end of the metal connecting piece 133 extends out of the side of the cover plate 132, the positioning groove 1310 is formed on the inner side of the frame 131 corresponding to the position of the metal connecting piece 133, one end of the metal connecting piece 133 is disposed in the positioning groove 1310, so that the cover plate 132 is mounted on the frame 131, that is, the metal connecting piece 133 can be connected to the frame 131, thereby facilitating the connection of the metal connecting piece 133 to the frame 131. The positioning groove 1310 is formed in the frame 131, so that the metal connecting piece 133 can be conveniently positioned, the metal connecting piece 133 and the frame 131 can be conveniently and fixedly connected, and the cover plate 132 can be better positioned.

Further, please refer to fig. 5, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the metal connecting sheet 133 is provided with an opening 1330, so as to conveniently fix the metal connecting sheet 133 on the cover plate 132.

Further, please refer to fig. 2, as a specific embodiment of the bluetooth antenna structure provided by the present invention, the elastic piece antenna 12 includes a connection section 121, a bending section 122 and a supporting section 123, the connection section 121 and the supporting section 123 are respectively connected to two ends of the bending section 122, and the connection section 121 is used for being welded to the antenna feed point 21; the bending section 122 is bent and extended from the connecting section 121 so as to provide elasticity and facilitate the extending arrangement of the direction of the abutting section 123; the holding section 123 is used for holding the metal connecting piece 133 so as to be connected with the metal connecting piece 133.

further, please refer to fig. 2 to fig. 5, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the metal connecting sheet 133 and the elastic sheet antenna 12 are made of copper material to reduce the resistance and improve the signal transmission strength and performance. Similarly, the frame 131 is made of copper material to reduce resistance and improve signal transmission strength and performance.

Further, referring to fig. 2 to 5, as a specific embodiment of the bluetooth antenna structure provided by the present invention, the metal connecting sheet 133 may be a printed circuit fabricated on the cover plate 132, so as to facilitate the design and layout of the antenna.

Further, the main board 20 may be simultaneously provided with a board-mounted antenna, a patch antenna, a wire-lead antenna, a PCB antenna, or an FPC antenna, etc. so as to simultaneously operate through a plurality of antennas, thereby improving signal strength and transmission performance, realizing multi-angle, full-range signal coverage, and improving stability of signal transmission.

The bluetooth antenna structure of this embodiment links to each other with metal connecting sheet 133 through shell fragment antenna 12, links to each other with frame 131 through metal connecting sheet 133 again to form all-round antenna structure, reach super long-range signal connection, transmission, signal connection can reach 50 meters with transmission distance, realize super long-range connection and transmission, wearing equipment of avoiding using this bluetooth antenna structure when wearing, produces weak connection, connect unstable or connect not last problem. Specifically, this bluetooth antenna structure can use on occasion and the equipment that needs use bluetooth wireless transmission such as intelligent bracelet, intelligent wrist-watch, bluetooth headset, bluetooth speaker.

Example two:

Referring to fig. 6, the difference between the bluetooth antenna structure 10 of the present embodiment and the bluetooth antenna structure of the first embodiment is:

the bluetooth antenna structure 10 further includes a control board 30, a bluetooth chip 41 and an auxiliary antenna 42; the main board 20 is provided with a first branch circuit 23 and a second branch circuit 24 which are electrically connected with the radio frequency end of the bluetooth chip 41, the antenna feed point 21 is arranged on the first branch circuit 23, the auxiliary antenna 42 is arranged on the control board 30, and the second branch circuit 24 is electrically connected with the auxiliary antenna 42; the control panel 30 is electrically connected with the motherboard 20, the bluetooth chip 41 is used for bluetooth communication, and the bluetooth chip 41 is installed on the motherboard 20. The auxiliary antenna 42 is arranged, the main board 20 is provided with the first branch circuit 23 and the second branch circuit 24, the first branch circuit 23 and the second branch circuit 24 are both electrically connected with the radio frequency end of the bluetooth chip 41, that is, the first branch circuit 23 and the second branch circuit 24 are respectively led out from the radio frequency end of the bluetooth chip 41. Referring to fig. 1 to 5, the antenna feed point 21 is electrically connected to the first branch circuit 23, the second branch circuit 24 is electrically connected to the auxiliary antenna 42 through the conductive wire 15, and the dome antenna 12 and the metal connecting sheet 133 may form the main antenna 31, so as to electrically connect the main antenna 31 and the auxiliary antenna 42 to the bluetooth chip 41, and the second branch circuit 24 is electrically connected to the auxiliary antenna 42, so as to separate the auxiliary antenna 42 from the motherboard 20.

Further, please refer to fig. 6, as a specific implementation of the bluetooth antenna structure 10 provided by the present invention, the bluetooth chip 41 may use a CSRxx chip. Of course, other models of bluetooth chip 41 may be used.

Further, please refer to fig. 6, as a specific embodiment of the bluetooth antenna structure 10 provided in the present invention, the second branch circuit 24 is electrically connected to the auxiliary antenna 42 through the conductive wire 15, so as to facilitate the position layout of the control board 30.

Further, please refer to fig. 6, as a specific implementation of the bluetooth antenna structure 10 according to the present invention, the main board 20 is further installed with a filter 22, one end of the filter 22 is connected to the rf end of the bluetooth chip 41, and the other end of the filter 22 is electrically connected to the first branch circuit 23 and the second branch circuit 24. The filter 22 is installed on the main board 20, and the filter 22 is arranged between the first branch circuit 23 and the second branch circuit 24 and the radio frequency end of the bluetooth chip 41, so that the radio frequency end of the bluetooth chip 41 is led out of the first branch circuit 23 and the second branch circuit 24 through the filter 22, and the filter 22 is arranged, so that a filtering effect can be achieved, the signal anti-interference capability is improved, and the communication quality is improved; in addition, the filter 22 is provided to facilitate switching of signal sources. Preferably, the filter 22 may be a band pass filter 22.

Further, please refer to fig. 6, as a specific embodiment of the bluetooth antenna structure 10 according to the present invention, the main board 20 is further installed with a radio frequency base 26, the second branch circuit 24 is electrically connected to the radio frequency base 26, and the conductive wire 15 is connected to the radio frequency base 26. The motherboard 20 is provided with an rf pad 26 for connecting the conductive wire 15 conveniently, thereby improving the signal transmission quality.

Further, please refer to fig. 6, as a specific implementation of the bluetooth antenna structure 10 provided by the present invention, the conductive wire 15 is a coaxial wire, so as to ensure the quality of signal transmission and reduce interference during the transmission of antenna signals. Preferably, the conductive wire 15 is a single-terminal coaxial wire.

Further, please refer to fig. 6, as a specific implementation of the bluetooth antenna structure 10 provided in the present invention, the antenna feed point 21 and the radio frequency seat 26 are respectively disposed on two sides of the motherboard 20 to reduce interference. Specifically, the antenna feed point 21 may be disposed on the top layer of the motherboard 20, and the rf pad 26 may be disposed on the bottom layer of the motherboard 20. Of course, the antenna feed point 21 may be disposed on the bottom layer of the motherboard 20, and the rf pad 26 may be disposed on the top layer of the motherboard 20.

Further, please refer to fig. 6, as a specific implementation manner of the bluetooth antenna structure 10 provided by the present invention, the main board 20 is further provided with a first matching circuit 25, one end of the first matching circuit 25 is connected to the antenna feed point 21, and the other end of the first matching circuit 25 is connected to the first branch circuit 23. A first matching circuit 25 is arranged between the first branch circuit 23 and the antenna feed point 21 so that the main antenna 31 can work better, ensuring signal quality. Further, the first matching circuit 25 may be a pi-type matching circuit. Of course, in other embodiments, the first matching circuit 25 may be other matching circuits, such as a T-type matching circuit, a P-type matching circuit, and so on.

Further, please refer to fig. 6, as a specific implementation manner of the bluetooth antenna structure 10 provided by the present invention, the auxiliary antenna 42 is a ceramic antenna, and the ceramic antenna is welded on the control board 30, so as to facilitate the manufacturing, better avoid the interference between the main antenna 31 and the auxiliary antenna 42, and improve the signal strength and quality.

Further, please refer to fig. 6, as a specific implementation of the bluetooth antenna structure 10 provided in the present invention, the control board 30 is further provided with a second matching circuit 43, one end of the second matching circuit 43 is connected to the auxiliary antenna 42, and the other end of the second matching circuit 43 is connected to the second branch circuit 24. The second matching circuit 43 is provided so that the auxiliary antenna 42 can operate better, ensuring signal quality. Further, the second matching circuit 43 may be a pi-type matching circuit. Of course, in other embodiments, the second matching circuit 43 may also be other matching circuits, such as a T-type matching circuit, a P-type matching circuit, and so on.

Of course, in some embodiments, the bluetooth chip 41 may be disposed on the control board 30 and connected to the first branch circuit 23 and the second branch circuit 24 through wires. In still other embodiments, the bluetooth chip 41, the first subcircuit 23, and the second subcircuit 24 may all be disposed on the control board 30. In some embodiments, the control board 30 and the motherboard 20 may be integrally formed for electrical connection, and may be conveniently used in some larger bluetooth wireless transmission devices.

The bluetooth antenna structure 10 may be applied to a bluetooth headset. Of course, the present invention can also be applied to smart bracelets, such as a control board 30 structure disposed in a ring belt. Can also be applied to wearing equipment such as intelligent wrist-watch.

The other structures of the bluetooth antenna structure 10 in this embodiment are the same as those of the bluetooth antenna structure in the first embodiment, and are not described herein again.

Example three:

referring to fig. 7, the difference between the bluetooth antenna structure of the present embodiment and the bluetooth antenna structure of the second embodiment is:

Auxiliary antenna 42 is patch antenna 42a, and bluetooth chip 41 is installed on control panel 30, and distance D1 between bluetooth chip 41 edge and the patch antenna 42a edge is greater than or equal to 8.0mm, can reduce the influence of each other between bluetooth chip 41 and the patch antenna 42a, reduces the signal noise influence to effectively promote patch antenna 42a transceiver's ability, and then promote transceiver's distance.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the distance D1 between the edge of the bluetooth chip 41 and the edge of the patch antenna 42a is set to be equal to 8.0mm, so that the influence between the bluetooth chip 41 and the patch antenna 42a is small, and the integration level of the electronic device on the control board 30 is higher, thereby facilitating the manufacture of the control board 30 to be small.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the control board 30 is provided with a second matching circuit 43, the second matching circuit 43 is electrically connected to the bluetooth chip 41, and the patch antenna 42a is electrically connected to the second matching circuit 43, so that the patch antenna 42a works well.

Specifically, one end of the control board 30 in the longitudinal direction is an antenna end 31, two sides of the control board 30 in the longitudinal direction are a first side 33 and a second side 34, respectively, and the patch antenna 42a is mounted on the antenna end 31 so as to locate the mounting position of the patch antenna 42 a.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the patch antenna 42a is located on the control board 30 near the first side 33, and the second side 34 of the control board 30 is provided with a slot 44 near the antenna end 31. The slot 44 is disposed on the control board 30 for fixing the bonding wire, so as to prevent the wire from being hung over the patch antenna 42a and affecting the performance of the patch antenna 42a, thereby improving the signal receiving and transmitting capability of the patch antenna 42a, and facilitating the production of the product.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the length N of the slot 44 is 3.1mm, and the width M of the slot 44 is 1.9mm, so as to set the size of the slot 44 to be smaller, which is even for the welding and fixing of the electric wire, and can reduce the space position occupied on the control board 30, so as to make the control board 30 smaller and facilitate the use.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D4 between the edge of the patch antenna 42a and the second side 34 is greater than or equal to 3.3mm, so that a sufficient distance is provided between the patch antenna 42a and the second side 34 of the control board 30, so as to fabricate the slot 44 on the control board 30, and a sufficient distance is provided between the edge of the patch antenna 42a and the slot 44, so as to facilitate the welding and fixing of the electric wire, and reduce the influence of the electric wire on the patch antenna 42 a.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D4 between the edge of the patch antenna 42a and the second side 34 is equal to 3.3mm, which can ensure that the wire does not affect the patch antenna 42a, and the control board 30 can be made smaller.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D2 between the edge of the patch antenna 42a and the end surface of the antenna end 31 is greater than or equal to 0.3mm, so that the patch antenna 42a can be conveniently installed on the control board 30, and the patch antenna 42a can be ensured by the control board 30, so as to ensure that the patch antenna 42a works well.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D2 between the edge of the patch antenna 42a and the end surface of the antenna end 31 is equal to 0.3mm, which can ensure that the patch antenna 42a works well and the control board 30 can be made smaller.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D3 between the edge of the patch antenna 42a and the first side 33 is greater than or equal to 0.5mm, so that the patch antenna 42a can be conveniently installed on the control board 30, and the patch antenna 42a can be ensured by the control board 30, so as to ensure that the patch antenna 42a works well.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D3 between the edge of the patch antenna 42a and the first side 33 is equal to 0.5mm, which can ensure that the patch antenna 42a works well and the control board 30 can be made smaller.

further, please refer to fig. 7, as a specific embodiment of the bluetooth antenna structure provided by the present invention, a distance D5 between the edge of the bluetooth chip 41 and the end surface of the antenna end 31 is greater than or equal to 12.3mm, so that there is enough area between the bluetooth chip 41 and the end surface of the antenna end 31 of the control board 30 for arranging and installing the patch antenna 42 a.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, a distance D5 between the edge of the bluetooth chip 41 and the end surface of the antenna end 31 is equal to 12.3mm, so as to make the control board 30 smaller and more convenient for use.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the width W of the control board 30 is greater than or equal to 6.4mm, which is convenient for layout of electronic devices and reduces the mutual influence between the electronic devices.

further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the width W of the control board 30 is equal to 6.4mm, so as to make the width of the control board 30 smaller, which is convenient for the use of the bluetooth antenna.

Further, please refer to fig. 7, as a specific implementation of the bluetooth antenna structure provided by the present invention, the length L of the control board 30 is greater than or equal to 30.5mm, which is convenient for layout of electronic devices and reduces the mutual influence between the electronic devices.

further, please refer to fig. 7, as a specific implementation of the bluetooth antenna structure provided by the present invention, the length L of the control board 30 is equal to 30.5mm, so as to make the width of the control board 30 smaller, which is convenient for the bluetooth antenna to be used.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, one end of the control board 30, which is far away from the antenna end 31, has a main control area 32 for setting the main control circuit, so as to install the main control circuit, and reduce the influence of the main control circuit on the patch antenna 42a, and improve the integration level of the electronic device on the control board 30, and then the control board 30 can be made smaller, which is convenient for use.

Further, please refer to fig. 7, as a specific implementation manner of the bluetooth antenna structure provided by the present invention, the second matching circuit 43 is disposed between the patch antenna 42a and the bluetooth chip 41, so as to improve the integration of the control board 30, improve the utilization rate of the control board 30, reduce the size of the control board 30, and facilitate the use.

In a preferred embodiment of the present invention, please refer to fig. 7, the distance D1 between the edge of the bluetooth chip 41 and the edge of the patch antenna 42a is set to be equal to 8.0 mm; the length N of the slot 44 is 3.1mm, and the width M of the slot 44 is 1.9 mm; the distance D4 between the edge of patch antenna 42a and second side 34 is equal to 3.3 mm; the distance D2 between the edge of the patch antenna 42a and the end face of the antenna end 31 is equal to 0.3 mm; the distance D3 between the edge of patch antenna 42a and first side 33 is equal to 0.5 mm; the distance D5 between the edge of the bluetooth chip 41 and the end face of the antenna end 31 is equal to 12.3 mm. So that the length L of the control plate 30 is 30.5mm and the width W is 6.4 mm; and then make the length of the bluetooth antenna structure of preparation 30.5mm, the width is 6.4mm, and the size is less, facilitates the use. This control panel 30 goes up bluetooth signal strength and can reach 18m, can realize the bluetooth transmission of super remote to as auxiliary antenna 42, can be good carry out the auxiliary action, guarantee signal transmission's stability, and can make control panel 30 less, facilitate the use.

In some embodiments, the control board 30 may be the control board in the bluetooth antenna structure of embodiment two. In still other embodiments, the control board 30 may be integrally formed with the main board in the first embodiment.

The bluetooth antenna structure of the embodiment can be applied to a bluetooth headset, for example, the control board 30 is disposed in a control box of the bluetooth headset. Of course, the present invention can also be applied to smart bracelets, such as a control board 30 structure disposed in a ring belt. Can also be applied to wearing equipment such as intelligent wrist-watch.

Other structures of the bluetooth antenna structure of this embodiment are the same as those of the bluetooth antenna structure of the second embodiment, and are not described herein again.

Referring to fig. 1 to 5, the present invention further provides a bluetooth wearable device 100, which includes the bluetooth antenna structure as described above. The utility model discloses a bluetooth wearing equipment 100 has adopted above-mentioned bluetooth antenna structure, can well design the shape structure of shell fragment antenna 12 and metal connecting piece 133, and is little to shell 13 dependence, and is difficult for receiving electronic device's in the shell 13 influence, and signal strength is better, and then can promote bluetooth wearing equipment 100 distance and the stability of receiving and dispatching signals.

Referring to fig. 8, the present invention further provides a bluetooth wearable device 100, which includes the bluetooth antenna structure described above. This bluetooth wearable device 100 is bluetooth headset, and this bluetooth headset still includes sound generating unit 52, battery 51 and control box (not shown in the figure), and sound generating unit 52 and mainboard 20 electric connection to carry out the sound production. The battery 51 is electrically connected to the motherboard 20 to provide power. The control board 30 is installed in the control box to protect the control board 30 by the control box.

further, please refer to fig. 8, as a specific implementation manner of the bluetooth wearable device 100 provided by the present invention, a battery slot 134 is disposed in the housing 13, the battery 51 is installed in the battery slot 134, and the wires are disposed along the edge of the battery slot 134. This structure, can be through shell 13 protection battery 51, can conveniently install the wire again, reduce occupation space. Of course, in other embodiments, the battery 51 may be spaced apart from the housing 13, and the wires may be routed around the edges of the housing 13.

Further, please refer to fig. 8, as a specific embodiment of the bluetooth wearable device 100 provided by the present invention, the sound generating unit 52 includes a first earplug 521 and a second earplug 522 electrically connected to the main board 20, so as to generate sound in left and right channels.

Further, referring to fig. 8, as a specific implementation of the bluetooth wearable device 100 provided by the present invention, the first earplug 521 is directly electrically connected to the main board 20 through the first wire 531; the second earplug 522 is connected to the control board 30 via a second wire 532, and is electrically connected to the main board 20 via the control board 30 for wearing.

Further, please refer to fig. 8, as a specific implementation manner of the bluetooth wearable device 100 provided by the present invention, the bluetooth wearable device 100 further includes a charging port 54, and the charging port 54 is electrically connected to the motherboard 20, so as to charge the battery 51. Further, a charging port 54 is mounted on the housing 13. Of course, in other embodiments, the charging port 54 may be mounted on the control box. Specifically, the charging port 54 may be a microsub interface, a USB interface, or the like.

further, referring to fig. 8, as a specific embodiment of the bluetooth wearable device 100 provided by the present invention, a clip (not shown in the figure) is installed on the housing 13 so as to be clamped on the collar of the user when in use.

Further, as the utility model provides a bluetooth antenna structure's a specific implementation, this bluetooth wearing equipment 100 can intelligent bracelet. This intelligence bracelet has used above-mentioned bluetooth antenna structure, can guarantee that omnidirectional signal is stable to be connected, realizes super remote bluetooth signal transmission.

Further, as the utility model provides a bluetooth antenna structure's a specific implementation, this bluetooth is dressed equipment 100 and can be intelligent wrist-watch. This intelligence wrist-watch has used above-mentioned bluetooth antenna structure, can guarantee that omnidirectional signal is stable to be connected, realizes super long-range bluetooth signal transmission.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Bluetooth antenna structure, including the shell with install in mainboard in the shell, its characterized in that: the shell comprises a frame and a cover plate arranged on the frame, an antenna feed point is arranged on the mainboard, a metal connecting sheet is arranged on the cover plate, the Bluetooth antenna structure further comprises a spring plate antenna, one end of the spring plate antenna is connected with the antenna feed point in a welded mode, and the other end of the spring plate antenna abuts against the metal connecting sheet.

2. The bluetooth antenna structure of claim 1, wherein: the frame is a metal frame, and the metal connecting sheet is connected with the frame.

3. The bluetooth antenna structure of claim 2, wherein: one end of the metal connecting sheet extends out of the side edge of the cover plate, a positioning groove is formed in the position, corresponding to the metal connecting sheet, of the inner side of the frame, and one end of the metal connecting sheet is arranged in the positioning groove.

4. The bluetooth antenna structure of claim 1, wherein: the elastic sheet antenna comprises a connecting section connected with the antenna feed point in a welding mode, a bent section bent and extended from the connecting section and a supporting section used for supporting the metal connecting sheet, and the supporting section is connected with the bent section.

5. The bluetooth antenna structure of any one of claims 1-4, characterized in that: the Bluetooth antenna structure further comprises a control panel, a Bluetooth chip and an auxiliary antenna, wherein the control panel is electrically connected with the mainboard, the Bluetooth chip is used for Bluetooth communication, the Bluetooth chip is installed on the mainboard or the control panel, a first branch circuit and a second branch circuit are electrically connected with the radio frequency end of the Bluetooth chip and arranged on the mainboard, the antenna is fed with points and arranged on the first branch circuit, the auxiliary antenna is installed on the control panel, and the second branch circuit is electrically connected with the auxiliary antenna.

6. The bluetooth antenna structure of claim 5, wherein: the main board is further provided with a filter, one end of the filter is connected with the radio frequency end of the Bluetooth chip, and the other end of the filter is electrically connected with the first branch circuit and the second branch circuit.

7. The bluetooth antenna structure of claim 5, wherein: the main board is further provided with a first matching circuit, one end of the first matching circuit is connected with the antenna feed point, and the other end of the first matching circuit is connected with the first branch circuit.

8. The bluetooth antenna structure of claim 5, wherein: and a second matching circuit is further arranged on the control panel, one end of the second matching circuit is connected with the auxiliary antenna, and the other end of the second matching circuit is connected with the second branch circuit.

9. The bluetooth antenna structure of claim 5, wherein: the auxiliary antenna is a patch antenna, the Bluetooth chip is installed on the control panel, and the distance between the edge of the Bluetooth chip and the edge of the patch antenna is larger than or equal to 8.0 mm.

10. Bluetooth wearing equipment, its characterized in that: comprising a bluetooth antenna arrangement according to any of claims 1-9.