CN219590688U - Dial and watch - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of electronic wearable equipment, and discloses a dial plate and a watch, wherein the dial plate comprises: a metal housing on which an antenna is integrated; the main board is arranged in the metal shell, a wireless communication circuit is arranged on the main board, and a limit hole is formed in the edge of the main board; the first electric connecting piece is provided with a fixed end and an abutting end which are opposite, wherein the fixed end is fixed in the limiting hole and is electrically connected with the wireless communication circuit, and the abutting end abuts against the inner wall of the metal shell so as to form electric connection between the wireless communication circuit and the antenna. Through the mode, the embodiment of the utility model ensures the texture and the attractive appearance of the watch, and simultaneously realizes the receiving and transmitting of wireless signals.

Description

Dial and watch

Technical Field

The embodiment of the utility model relates to the technical field of electronic wearable equipment, in particular to a dial and a watch.

Background

Along with the intelligent promotion of electronic watch, electronic watch internal circuit's integrated level is higher and higher, and correspondingly, the function also becomes diversified more and more. Electronic watches want to perform more functions and inevitably require a connection to a wireless network, so antennas become an integral part of smartwatches.

In the existing electronic watch, the antenna is generally integrated on the internal main board, and the metal material can shield the radiation of the antenna signal, so that the shell of the electronic watch is made of plastic material, which results in poor texture and poor appearance of the watch.

Disclosure of Invention

In view of the above problems, embodiments of the present utility model provide a dial and a wristwatch, which ensure the texture and the aesthetic degree of the wristwatch by adopting a metal case, and simultaneously realize the transmission and reception of wireless signals.

According to an aspect of an embodiment of the present utility model, there is provided a dial, including: a metal housing on which an antenna is integrated; the main board is arranged in the metal shell, a wireless communication circuit is arranged on the main board, and a limit hole is formed in the edge of the main board; the first electric connecting piece is provided with a fixed end and an abutting end which are opposite, wherein the fixed end is fixed in the limiting hole and is electrically connected with the wireless communication circuit, and the abutting end abuts against the inner wall of the metal shell so as to form electric connection between the wireless communication circuit and the antenna.

In the dial provided by the embodiment of the utility model, the metal shell is used as the carrier of the antenna, so that the metal shell effectively shields the antenna when the antenna is arranged on the main board, the main board and the metal shell are electrically connected through the first electric connector, the electric connection between the wireless communication circuit and the antenna is realized, the wireless receiving and transmitting function of the antenna is realized, meanwhile, the first electric connector enables the assembly of the main board and the metal shell to be simpler and more convenient, and finally, the dial is better in texture and attractive appearance under the support of the external metal shell.

In an alternative way, the abutment end is elastically retractable in the axial direction of the first electrical connector, such that an interference fit is provided between the abutment end and the inner wall of the metal housing. The abutting end can be elastically and telescopically arranged along the axial direction of the first electric connecting piece, so that stable and reliable electric contact between the first electric connecting piece and the inner wall of the metal shell is ensured, and stable electric signal transmission between the wireless communication circuit and the antenna is ensured.

In an alternative mode, the metal shell is annular, the inner wall of the metal shell is connected with the main board through a plurality of second electric connecting pieces, the plurality of second electric connecting pieces are arranged along the circumferential direction of the metal shell and are electrically connected with signals of the main board, and the plurality of second electric connecting pieces divide a circle of the metal shell into a plurality of sections; at least two sections of the metal shell are respectively integrated with an antenna; the number of the wireless communication circuits and the first electric connecting pieces is equal to that of the antennas, and the wireless communication circuits and the antennas are electrically connected in a one-to-one correspondence mode through the first electric connecting pieces. The dial plate is connected with the inner wall of the metal shell through a plurality of second electric connecting pieces and is connected with the signal ground of the main board at the same time so as to divide the metal shell into a plurality of sections which are mutually electrically isolated, and the dial plate can have more wireless communication functions by integrating antennas on at least two sections of metal shells.

In an alternative mode, the metal shell comprises a meter ring and a middle frame, the main board is arranged in the middle frame, the meter ring is covered on one side of the middle frame, and the meter ring is provided with a display module. Through with metal casing split for table circle and center for the assembly of display module assembly and the assembly of mainboard each other do not influence, can each independent operation, thereby ensure the reliability of display module assembly and mainboard installation respectively, and be favorable to promoting assembly efficiency.

In an alternative mode, the antenna is integrated on the bezel, and the abutting end of the first electric connector abuts against the inner wall of the bezel; the second electrical connector includes a plurality of first sub-connectors and at least one second sub-connector; the first sub-connectors are abutted between the bezel and the middle frame, and divide one circle of the bezel into multiple sections; the second sub-connecting piece is arranged at the edge of the main board and is electrically connected with the signal, and the second sub-connecting piece is abutted with the inner wall of the middle frame, so that a plurality of first sub-connecting pieces are electrically connected with the signal through the middle frame. The antenna is integrated on the meter ring to realize the wireless receiving and transmitting function, the plurality of first sub-connecting pieces are abutted between the meter ring and the middle frame, the meter ring is divided into a plurality of sections, so that different antennas can be arranged on each section, the second sub-connecting pieces at the edge of the main board are abutted with the middle frame, the plurality of first sub-connecting pieces are uniformly connected with the signal ground on the main board through the middle frame, and the required conductive structure on the main board is effectively simplified.

In an optional mode, be provided with spacing blind hole on the middle frame, one end of first sub-connecting piece inserts in spacing blind hole, and the other end and table circle butt to form the electricity and be connected between table circle and the middle frame. Through setting up spacing blind hole on the center, when assembling bezel and center, can be earlier with first sub-connecting piece reservation be located spacing blind hole, again with bezel and center assembly are fixed, prevent that first sub-connecting piece from taking place to shift, the condition such as drop in the assembly process to after the assembly, spacing blind hole makes first sub-connecting piece more reliable and stable to the spacing effect of first sub-connecting piece.

In an alternative manner, the first sub-connector includes an elastic member and a thimble; the elastic piece is arranged in the limiting blind hole, one end of the thimble is inserted into the limiting blind hole, and the other end of the thimble is abutted with the gauge collar; the part of the thimble inserted into the limiting blind hole is abutted against the elastic piece, and the elastic piece is used for changing the length of the thimble extending into the limiting blind hole when the thimble is deformed, so that the other end of the thimble is in interference fit with the bezel. The elastic force of the elastic piece is utilized to enable the thimble and the bezel to form interference fit, so that reliable electric connection between the thimble and the inner wall of the bezel can be ensured, and further stability and reliability of current transmission between the bezel and the middle frame are ensured.

In an alternative mode, the second sub-connecting piece comprises a metal elastic piece, and the end part of the metal elastic piece protruding out of the edge of the main board is in abutting connection with the inner wall of the middle frame and in interference fit with the inner wall of the middle frame. The electric connection between the middle frame and the signal ground on the main board is realized by adopting the metal elastic sheet, and the elastic deformation capability of the metal elastic sheet is utilized to enable the metal elastic sheet to form interference fit with the inner wall of the middle frame, so that stable and reliable current transmission between the middle frame and the signal ground is ensured.

In an alternative, the number of first sub-connectors is three, the three first sub-connectors dividing the bezel into three sections; the number of the antennas is two, and the two antennas are a GPS antenna and a WIFI antenna respectively.

According to another aspect of an embodiment of the present utility model, there is provided a wristwatch including a band and a dial as in any one of the above, the band being connected to the dial.

According to the watch provided by the embodiment of the utility model, the metal shell is used as the carrier of the antenna, so that the metal shell effectively shields the antenna when the antenna is arranged on the main board, the main board is electrically connected with the metal shell through the first electric connector, the electric connection between the wireless communication circuit and the antenna is realized, the wireless receiving and transmitting function of the antenna is realized, meanwhile, the first electric connector enables the assembly of the main board and the metal shell to be simpler and more convenient, and finally, the watch is provided with better texture and attractive appearance under the setting of the metal shell on the dial.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic diagram of an explosion structure of a dial provided by an embodiment of the present utility model;

fig. 2 is a schematic top view of a dial plate according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of FIG. 2 taken along line A-A;

fig. 4 is a schematic structural diagram of a first electrical connector in a dial according to an embodiment of the present utility model;

fig. 5 is a schematic top view of a metal case in a dial according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of an explosion structure of a metal case in a dial provided by an embodiment of the present utility model;

fig. 7 is a schematic top view of a dial plate according to an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of FIG. 7 taken along B-B;

fig. 9 is a schematic top view of a dial according to another embodiment of the present utility model;

fig. 10 is a schematic structural diagram of a wristwatch according to an embodiment of the present utility model.

Reference numerals in the specific embodiments are as follows:

100. a dial; 110. a metal housing; 111. a bezel; 112. a middle frame; 1121. limiting blind holes; 120. a main board; 121. a limiting hole; 130. a first electrical connection; 131. a fixed end; 132. an abutment end; 140. a second electrical connection; 141. a first sub-connector; 1411. an elastic member; 1412. a thimble; 142. a second sub-connector; 150. a display module;

10. a wristwatch; 200. watchband.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present utility model, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: there are three cases, a, B, a and B simultaneously. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present utility model, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present utility model, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The antenna in the intelligent watch is provided with a GPS antenna, a Bluetooth antenna, a WIFI antenna, a communication antenna and the like. At present, the antenna of the electronic watch is integrated on the internal main board, and the metal material can shield the radiation of the antenna signal, so that the shell of the electronic watch is made of plastic material, which results in poor texture and poor appearance of the watch.

Based on the above, in order to ensure the texture of the watch and realize the wireless signal receiving and transmitting function of the watch, the utility model provides a dial, wherein the metal shell is used as a carrier of a wireless signal receiving and transmitting antenna, so that the metal shell can not shield the radiation of wireless signals, and the receiving and transmitting function of the antenna on the metal shell is further realized by designing a circuit connection structure of an internal main board and the metal shell.

According to an aspect of the embodiment of the present utility model, referring to fig. 1, an explosion structure of a dial is shown. As shown in the drawing, the dial 100 includes a metal housing 110, a main board 120, and a first electrical connector 130. The metal housing 110 has an antenna integrated thereon. Referring further to fig. 2 and 3, a side view of the dial is shown in fig. 2, and a cross-sectional view along A-A of fig. 2 is shown in fig. 3. As shown in the drawing, the main board 120 is disposed inside the metal housing 110, a wireless communication circuit is disposed on the main board 120, and a limiting hole 121 is disposed at an edge of the main board 120. The first electrical connector 130 has a fixed end 131 and an abutting end 132 opposite to each other, wherein the fixed end 131 is fixed in the limiting hole 121 and is electrically connected with the wireless communication circuit, and the abutting end 132 abuts against the inner wall of the metal housing 110, so that the wireless communication circuit and the antenna are electrically connected.

The metal housing 110 is used as a key component in the dial 100, and is used for accommodating various circuit elements and protecting the internal circuit elements, and meanwhile, the metal housing can promote the overall texture of the dial 100 and ensure the aesthetic degree.

In order to facilitate the assembly of the dial 100, as shown in fig. 3, a limiting hole 121 is formed at the edge of the main board 120, during the assembly process, a fixed end 131 of the first electrical connector 130 is first inserted into the limiting hole 121, then the fixed end 131 and a portion of the main board 120 at the limiting hole 121 may be welded, so that the first electrical connector 130 is stably fixed on the main board 120, then when the main board 120 is installed in the metal housing 110, an abutting end 132 of the first electrical connector 130 abuts against an inner wall of the metal housing 110, and thus, a wireless communication circuit on the main board 120 and an antenna on the metal housing 110 may form an electrical connection for transmitting an electrical signal, thereby realizing a corresponding wireless communication function.

In the dial 100 provided by the embodiment of the utility model, the metal shell 110 is used as a carrier of the antenna, so that the metal shell 110 effectively prevents the antenna from shielding radiation when the antenna is arranged on the main board 120, and the main board 120 is electrically connected with the metal shell 110 through the first electric connector 130, so that the electric connection between a wireless communication circuit and the antenna is realized, the wireless receiving and transmitting function of the antenna is realized, meanwhile, the first electric connector 130 enables the assembly of the main board 120 and the metal shell 110 to be simpler and more convenient, and finally, the dial 100 is better in texture and attractive appearance under the support of the external metal shell 110.

In order to improve the reliability of the electrical signal transmission between the antenna and the wireless communication circuit, the present utility model proposes an embodiment, and particularly referring to fig. 4, a structure of the first electrical connector is shown. As shown in the figures, the abutment end 132 is elastically stretchable in the axial direction (the direction indicated by the arrow in fig. 4) of the first electrical connector 130, so that the abutment end 132 is in interference fit with the inner wall of the metal housing 110.

As shown in fig. 4, the first electrical connector 130 may employ an elastic thimble, and the retractable end of the elastic thimble is an abutting end 132, when the motherboard 120 is mounted in the metal housing 110, the abutting end 132 is pressed by the inner wall of the metal housing 110 to shrink inwards towards the first electrical connector 130, and the abutting end 132 forms an interference fit with the inner wall of the metal housing 110 under the action of the elastic force applied to the first electrical connector 130, so as to form a reliable electrical contact.

The abutting end 132 can be elastically and telescopically arranged along the axial direction of the first electric connector 130, so that stable and reliable electric contact between the first electric connector 130 and the inner wall of the metal shell 110 is ensured, and stable electric signal transmission between the wireless communication circuit and the antenna is ensured.

In order to realize more wireless communication functions, such as a GPS positioning function, a bluetooth function and a WIFI function, the electronic watch needs to have multiple antennas at the same time, and therefore, an embodiment of the present utility model is presented, and referring specifically to fig. 5, which shows a top view structure of a dial. As shown in the drawing, the metal case 110 is ring-shaped, the inner wall of the metal case 110 is connected with the main board 120 through a plurality of second electrical connectors 140, the plurality of second electrical connectors 140 are arranged along the circumferential direction of the metal case 110, the plurality of second electrical connectors 140 are electrically connected with the signals of the main board 120, and the plurality of second electrical connectors 140 divide a circumference of the metal case 110 into a plurality of segments. At least two sections of the metal housing 110 are each integrated with an antenna. The number of the wireless communication circuits and the first electrical connectors 130 is equal to the number of the antennas, and the wireless communication circuits and the antennas are electrically connected in one-to-one correspondence through the first electrical connectors 130.

In the embodiment shown in fig. 5, the number of the second electrical connectors 140 is three, which are located at the three points A, B and C in the drawing, and the number of the first electrical connectors 130 is also three, which are located at the three points X, Y and Z. The second electrical connector 140 may have the same structure as the first electrical connector 130, and will not be described herein. It should be noted that, in fig. 5, the positions of the first electrical connector 130 and the second electrical connector 140 are shown only for convenience of illustration, and since the first electrical connector 130 and the second electrical connector 140 are located inside the metal housing 110, the first electrical connector 130 and the second electrical connector 140 cannot be seen in the top view of the actual product of the dial 100.

With continued reference to fig. 5, the number of antennas and wireless communication circuits is three, and the three antennas are respectively disposed in the AB section, BC section, and AC section in the figure. The antenna of the AB section is electrically connected with the wireless communication circuit on the main board 120 through the first electric connector 130 of the X point, the antenna of the BC section is electrically connected with the wireless communication circuit on the main board 120 through the first electric connector 130 of the Y point, and the antenna of the AC section is electrically connected with the wireless communication circuit on the main board through the first electric connector 130 of the Z point. The three antennas may be, for example, a GPS antenna, a WIFI antenna, and a bluetooth antenna, and the second electrical connector 140 with three points A, B, C is electrically connected to the signal of the motherboard 120, so that the AB segment, the BC segment, and the AC segment are electrically isolated from each other, thereby ensuring that the antenna on each segment can normally implement the wireless transceiver function thereof.

It can be appreciated that in other embodiments, on the premise that the total circumference of the metal housing 110 meets the requirement of installing multiple antenna arm lengths and the radiation frequency bands of the multiple antennas do not interfere with each other seriously, the metal housing 110 may be divided into more sections to realize more wireless communication functions, for example, a 4G network or a 5G network communication antenna may be further provided.

The plurality of second electrical connectors 140 are connected with the inner wall of the metal shell 110 and simultaneously connected with the signal ground of the main board 120, so that the metal shell 110 is divided into a plurality of sections which are electrically isolated from each other, and the dial 100 can have more wireless communication functions by integrating antennas on at least two sections of metal shells 110.

In order to realize the functional display of the dial 100 and improve the stability of the overall structure, the present utility model further proposes an embodiment, and particularly please refer to fig. 6, which shows an explosion structure of the metal housing. As shown in the figure, the metal housing 110 includes a bezel 111 and a middle frame 112, the main board 120 is disposed in the middle frame 112, the bezel 111 is covered on one side of the middle frame 112, and the bezel 111 is provided with a display module 150.

In order to make the display module 150 and the main board 120 perform assembly operation on the metal housing 110 separately, the metal housing 110 is split into the bezel 111 and the middle frame 112, the display module 150 may be assembled on the bezel 111 in an embedded manner, the main board 120 is assembled in the middle frame 112, and finally the bezel 111 assembled with the display module 150 and the middle frame 112 assembled with the main board 120 are fixed to each other, so as to realize assembly molding of the whole dial 100.

By splitting the metal case 110 into the bezel 111 and the middle frame 112, the assembly of the display module 150 and the assembly of the main board 120 are not affected by each other, and can be operated independently of each other, thereby ensuring the reliability of the respective installation of the display module 150 and the main board 120, and facilitating the improvement of the assembly efficiency.

In the embodiment in which the metal case 110 is split into the bezel 111 and the middle frame 112, the antenna may be integrated on the bezel 111 or the middle frame 112.

As shown in fig. 5, since the second electrical connectors 140 are arranged along the circumferential direction of the metal housing 110 and are spaced far apart, after all the second electrical connectors 140 are directly mounted between the metal housing 110 and the motherboard 120, a very large number of conductive structures need to be disposed on the motherboard 120 to electrically connect a plurality of the second electrical connectors 140 to the same signal ground, which results in a complicated structure of the motherboard 120 and a larger required area.

In view of this, the present utility model further provides an embodiment of integrating the antenna on the bezel 111, referring to fig. 3 again, as shown in the drawings, the antenna is integrated on the bezel 111, and the abutting end 132 of the first electrical connector 130 abuts against the inner wall of the bezel 111. Referring to fig. 1 and 6 in combination, as shown in the drawings, the second electrical connector 140 includes a plurality of first sub-connectors 141 and at least one second sub-connector 142. The first sub-connectors 141 are abutted between the bezel 111 and the middle frame 112, and the first sub-connectors 141 divide one circumference of the bezel 111 into a plurality of segments. The second sub-connector 142 is disposed at an edge of the motherboard 120, the second sub-connector 142 is electrically connected to the signal, and the second sub-connector 142 abuts against an inner wall of the middle frame 112, so that multiple sections of the bezel 111 are electrically connected to the signal through the middle frame 112.

The antenna is integrated on the bezel 111 to realize a wireless receiving and transmitting function, the plurality of first sub-connecting pieces 141 are abutted between the bezel 111 and the middle frame 112 to divide the bezel 111 into a plurality of sections, so that different antennas can be arranged on each section, the second sub-connecting pieces 142 at the edge of the main board 120 are abutted with the middle frame 112, and the plurality of first sub-connecting pieces 141 are uniformly connected with the signal ground on the main board 120 through the middle frame 112, so that the required conductive structure on the main board 120 is effectively simplified.

In order to improve the structural stability of the first sub-connector 141, the present utility model further proposes an embodiment, referring specifically to fig. 7 and 8, in which the metal housing is shown in a top view in fig. 7, and in which the cross-sectional structure along B-B in fig. 7 is shown in fig. 8. As shown in the figure, the middle frame 112 is provided with a limiting blind hole 1121, one end of the first sub-connector 141 is inserted into the limiting blind hole 1121, and the other end is abutted against the bezel 111, so that an electrical connection is formed between the bezel 111 and the middle frame 112.

Through setting up spacing blind hole 1121 on middle frame 112, when assembling bezel 111 and middle frame 112, can be earlier with first sub-connecting piece 141 predefine in spacing blind hole 1121, again with bezel 111 and middle frame 112 assembly fixed, prevent that first sub-connecting piece 141 from taking place the condition such as shifting, dropping in the assembly process to after the assembly, spacing blind hole 1121 makes first sub-connecting piece 141 more reliable and stable to the spacing effect of first sub-connecting piece 141.

In order to ensure the stability of the current transmission between the bezel 111 and the middle frame 112, the present utility model further proposes an embodiment, and with continued reference to fig. 8, as shown in the drawings, the first sub-connector 141 includes an elastic element 1411 and a thimble 1412, the elastic element 1411 is disposed in the limiting blind hole 1121, one end of the thimble 1412 is inserted into the limiting blind hole 1121, and the other end is abutted against the bezel 111. The portion of the thimble 1412 inserted into the limiting blind hole 1121 is abutted against the elastic element 1411, and the elastic element 1411 is used for changing the length of the thimble 1412 extending into the limiting blind hole 1121 when in deformation, so that the other end of the thimble 1412 is in interference fit with the bezel 111.

As shown in fig. 8, the end of the thimble 1412 inserted into one end of the limit blind hole 1121 is not in contact with the bottom of the limit blind hole 1121, so that when the other end of the thimble 1412 is pressurized, one end of the thimble 1412 inserted into the limit blind hole 1121 presses the elastic member 1411 to compress, thereby changing the length of the thimble 1412 inserted into the limit blind hole 1121.

In the specific assembly process of the bezel 111 and the middle frame 112, the elastic element 1411 is firstly placed in the limiting blind hole 1121, then one end of the thimble 1412 is inserted into the limiting blind hole 1121, and then when the bezel 111 and the middle frame 112 are fixedly installed, one end of the thimble 1412 outside the limiting blind hole 1121 is subjected to the pressure exerted by the inner wall of the bezel 111, and then the thimble 1412 compresses the elastic element 1411, and under the elastic action of the elastic element 1411 restoring the deformation trend, the thimble 1412 forms interference fit with the inner wall of the bezel 111.

The elastic force of the elastic piece 1411 is utilized to enable the thimble 1412 and the bezel 111 to form interference fit, so that reliable electric connection between the thimble 1412 and the inner wall of the bezel 111 can be ensured, and further stability and reliability of current transmission between the bezel 111 and the middle frame 112 are ensured.

Referring to fig. 1 again, as shown in the drawings, the second sub-connector 142 includes a metal spring, and an end of the metal spring protruding from the edge of the main board 120 abuts against and is in interference fit with the inner wall of the middle frame 112.

The electric connection between the middle frame 112 and the signal ground on the main board 120 is realized by adopting the metal elastic sheet, and the elastic deformation capability of the metal elastic sheet is utilized to form interference fit with the inner wall of the middle frame 112, so that stable and reliable current transmission between the middle frame 112 and the signal ground is ensured.

Referring to fig. 9, a top view structure of a dial according to an embodiment of the present utility model is shown. As shown in the figure, in a preferred embodiment, the number of first sub-connectors 141 is three, and the three first sub-connectors 141 divide the bezel 111 into three sections, and the number of antennas is two, and the two antennas are a GPS antenna and a WIFI antenna, respectively.

In this embodiment, the GPS antenna and the WIFI antenna both use a half-wave dipole model, and each arm has a length of one-fourth wavelength and a full length of one-half wavelength. The GPS wavelength is about 19cm, so the overall length of the GPS antenna is about 9.5cm, with one arm being 4.75cm and the other arm using soil preparation as its radiation. The WIFI wavelength is about 12.5cm, the full length of the electric length of the WIFI antenna is about 6.25cm, one arm is 3.125cm, and the other arm also adopts soil preparation for radiation.

As shown in fig. 9, the three first sub-connectors 141 divide the bezel 111 into three sections by grounding, wherein the DF section is about 5cm, which is one arm of the GPS antenna, and the electrical signal between the GPS antenna and the main board 120 is transmitted through the first electrical connector 130 at the M point; the EF section is about 3.5cm, which is used as one arm of the WIFI antenna, and the electrical signal between the WIFI antenna and the motherboard 120 is transmitted through the first electrical connector 130 at the N point.

It will be appreciated that the embodiment shown in fig. 9 is merely a specific implementation, and in other embodiments, where the circumference of bezel 111 may satisfy multiple antenna electrical length requirements simultaneously, more antennas may be correspondingly arranged on the same principle to implement more wireless communication functions.

According to another aspect of an embodiment of the present utility model, a wristwatch is provided, and referring specifically to fig. 10, a structure of the wristwatch is shown. As shown in the figures, the wristwatch 10 includes a band 200 and the dial 100 in any of the above embodiments, and the band 200 is connected to the dial 100.

In the watch 10 provided by the embodiment of the utility model, the metal shell 110 is used as a carrier of the antenna, so that the metal shell 110 effectively prevents the antenna from shielding radiation when the antenna is arranged on the main board 120, and the main board 120 is electrically connected with the metal shell 110 through the first electric connector 130, so that the electric connection between a wireless communication circuit and the antenna is realized, the wireless receiving and transmitting function of the antenna is realized, meanwhile, the first electric connector 130 enables the assembly of the main board 120 and the metal shell 110 to be simpler and more convenient, and finally, the watch 10 has better texture and attractive appearance under the support of the metal shell 110 on the dial 100.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A dial, comprising:

the antenna is integrated on the metal shell;

the main board is arranged in the metal shell, a wireless communication circuit is arranged on the main board, and a limit hole is formed in the edge of the main board;

the first electric connecting piece is provided with a fixed end and an abutting end which are opposite, the fixed end is fixed in the limiting hole and is electrically connected with the wireless communication circuit, and the abutting end abuts against the inner wall of the metal shell so that the wireless communication circuit and the antenna are electrically connected.

2. The dial of claim 1, wherein the abutment end is elastically retractable in an axial direction of the first electrical connector such that an interference fit is provided between the abutment end and an inner wall of the metal housing.

3. The dial as claimed in claim 1, wherein the metal housing is ring-shaped, the inner wall of the metal housing is connected with the main board through a plurality of second electrical connectors, the plurality of second electrical connectors are arranged along the circumferential direction of the metal housing, the plurality of second electrical connectors are electrically connected with the signals of the main board, and the plurality of second electrical connectors divide a circumference of the metal housing into a plurality of sections;

the antennas are respectively integrated on at least two sections of the metal shell;

the number of the wireless communication circuits and the first electric connectors is equal to that of the antennas, and the wireless communication circuits and the antennas are electrically connected in a one-to-one correspondence through the first electric connectors.

4. The dial as claimed in claim 3, wherein the metal housing includes a bezel and a middle frame, the main board is disposed in the middle frame, the bezel is covered on one side of the middle frame, and the bezel is provided with a display module.

5. The dial of claim 4, wherein the antenna is integrated on the bezel and the abutting end of the first electrical connector abuts an inner wall of the bezel;

the second electrical connector includes a plurality of first sub-connectors and at least one second sub-connector;

the first sub-connectors are abutted between the bezel and the middle frame, and divide a circle of the bezel into a plurality of sections;

the second sub-connecting piece is arranged at the edge of the main board, the second sub-connecting piece is electrically connected with the signal, and the second sub-connecting piece is abutted to the inner wall of the middle frame, so that a plurality of first sub-connecting pieces are electrically connected with the signal through the middle frame.

6. The dial as claimed in claim 5, wherein the middle frame is provided with a limiting blind hole, one end of the first sub-connector is inserted into the limiting blind hole, and the other end of the first sub-connector is abutted against the bezel so as to form an electrical connection between the bezel and the middle frame.

7. The dial as in claim 6, wherein the first sub-connector comprises an elastic member and a thimble;

the elastic piece is arranged in the limiting blind hole, one end of the thimble is inserted into the limiting blind hole, and the other end of the thimble is abutted with the gauge ring;

the part of the thimble inserted in the limiting blind hole is abutted with the elastic piece, and the elastic piece is used for changing the length of the thimble extending into the limiting blind hole when in deformation, so that the other end of the thimble is in interference fit with the meter ring.

8. The dial as in claim 5, wherein the second sub-connector comprises a metal spring, the end of the metal spring protruding from the edge of the main plate is in abutting and interference fit with the inner wall of the middle frame.

9. The dial of any one of claims 5-8, wherein the number of first sub-connectors is three, the three first sub-connectors dividing the bezel into three segments;

the number of the antennas is two, and the two antennas are a GPS antenna and a WIFI antenna respectively.

10. A wristwatch comprising a wristband and a dial according to any one of claims 1-9, said wristband being connected to said dial.