Gauge head type automobile key and automobile assembly

Abstract

The utility model discloses a header type automobile key and an automobile assembly, a signal amplifier is arranged on a watch buckle, and the signal amplifier can transmit and amplify a communication signal sent by a communication element, so that the communication signal is greatly enhanced. The signal amplifier is mounted on the watch buckle, namely outside the mounting cavity, so that the interference or shielding of electronic component structures such as metal and a screen of the shell on communication signals transmitted by the signal amplifier can be avoided, and signals transmitted and / or received by the communication component can interact with external vehicles or accessories; it is guaranteed that the gauge head type automobile key can correctly recognize automobile signals, and the control effect on an automobile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a head-type automobile key and an automobile component. Background Art

[0002] With the continuous development of science and technology, smart watches have become an indispensable part of people's lives. Among them, a very convenient function is to operate the car key through the smart watch. The communication components installed in the watch receive and transmit the frequency signal of the car system, so that the user can operate the car key function of the car system through the watch. However, existing smart watches usually place the communication components inside the watch. The communication components are easily interfered by the metal shell of the watch and the internal electronic components. Due to the high degree of interference of the communication components, the receiving and transmitting signal performance of the communication components is reduced, making it impossible for the watch to accurately identify the vehicle signal, which easily causes the failure of vehicle signal reception, and thus cannot meet the normal car key function requirements. Utility Model Content

[0003] The main purpose of the utility model is to provide a head type automobile key, aiming to solve the technical problem of how to improve the signal transmission effect between the head type automobile key and the automobile.

[0004] To achieve the above-mentioned purpose, the head-type automobile key proposed by the utility model comprises:

[0005] A meter head, the meter head comprising a housing and a communication element, the housing being provided with an installation cavity, the communication element being installed in the installation cavity;

[0006] A watch strap, the watch strap is connected to the housing and is used for being worn by a human body;

[0007] A clasp, the clasp being connected to the strap and used for adjusting the wearing length of the strap;

[0008] A signal amplifier is installed on the watch buckle, and is used to transmit and amplify the communication signal of the communication element.

[0009] Optionally, the clasp is a non-metallic part, the clasp is provided with a receiving cavity, and the signal amplifier is installed in the receiving cavity.

[0010] Optionally, the clasp includes a clasp body and a cover body, the clasp body and the cover body enclose the receiving cavity, the clasp body is connected to the strap, the signal amplifier is connected to the clasp body, and the cover body and the clasp body are connected by a sealant to seal the receiving cavity.

[0011] Optionally, the meter head also includes a main control board installed in the installation cavity, and the communication element is installed on the main control board; the meter head type car key also includes an electrical connector extending along the watch strap, one end of the electrical connector extends to the meter head to be electrically connected to the main control board, and the other end extends into the receiving cavity to be electrically connected to the signal amplifier.

[0012] Optionally, the watch strap is provided with a wiring channel, one end of which is connected to the receiving cavity, the electrical connector is provided in the wiring channel, and one end of the electrical connector passes through the watch strap and extends into the receiving cavity.

[0013] Optionally, the strap includes a first strap body and a second strap body, the first strap body and the second strap body are respectively connected to opposite sides of the shell, the buckle is connected to an end of the first strap body away from the shell, and the second strap body is provided with at least two connection positions, the at least two connection positions are arranged at intervals along the length direction of the second strap body, and the at least two connection positions can be switchably connected to the buckle;

[0014] The wiring channel is disposed in the first belt body, and the wiring channel passes through one end of the first belt body connected to the buckle to communicate with the accommodating cavity.

[0015] Optionally, the clasp is provided with a connecting groove, an end of the first strap body away from the shell is inserted into the connecting groove, and the receiving cavity is connected to the connecting groove.

[0016] Optionally, the shell includes a middle frame, the middle frame is provided with a wire passage opening connected to the installation cavity, the wiring channel passes through an end of the strap close to the middle frame, and one end of the electrical connector passes through the strap and extends into the installation cavity through the wire passage opening.

[0017] Optionally, an assembly groove is provided on the outer wall of the middle frame, and the wire passing opening is provided at the bottom of the assembly groove; an assembly boss is convexly provided on the end wall of the strap, the wiring channel passes through the assembly boss, and the assembly boss is fixedly matched with the assembly groove.

[0018] Optionally, the watch head type car key also includes a protective piece, and an installation groove is opened on the end wall of the watch strap, and the installation groove and the wiring channel are adjacently arranged along the thickness direction of the watch strap, a part of the protective piece cooperates with the installation groove, and the other part extends into the installation cavity from the wire passing opening and is connected to the middle frame, and the protective piece is crimped to the electrical connector, and the deformation resistance of the protective piece is greater than that of the watch strap.

[0019] Optionally, at least two limiting protrusions are protruded from the outer wall of the middle frame, and the at least two limiting protrusions are arranged at intervals along the circumference of the middle frame. The wire passing opening is located between two adjacent limiting protrusions, and one end of the strap connected to the middle frame is located between two adjacent limiting protrusions.

[0020] Optionally, the electrical connector includes a flexible printed circuit board.

[0021] The utility model also provides an automobile component, which comprises an automobile and the above-mentioned head-type automobile key, wherein the head-type automobile key is communicatively connected with the automobile.

[0022] In the technical solution of the watch head type automobile key of the utility model, a signal amplifier is installed on the watch buckle, and the signal amplifier can transmit and amplify the communication signal emitted by the communication element, so that the communication signal is greatly enhanced. Since the signal amplifier is installed on the watch buckle, that is, outside the installation cavity, it can avoid the metal of the shell and the electronic component structure such as the screen to interfere with or shield the communication signal transmitted by the signal amplifier, so that the signal transmitted and / or received by the communication element can interact with the external vehicle or accessories, ensuring that the watch head type automobile key can correctly identify the vehicle signal to improve the control effect of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a head-type automobile key of the utility model;

[0025] Figure 2 It is a cross-sectional view of an embodiment of a head-type automobile key of the utility model;

[0026] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0027] Figure 4 This is a structural exploded view of an embodiment of a head-type automobile key of the utility model;

[0028] Figure 5 This is a cross-sectional exploded view of an embodiment of a head-type automobile key of the utility model;

[0029] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0030] Description of Figure Numbers:

[0031]

[0032]

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] With the continuous development of science and technology, smart watches have become an indispensable part of people's lives. Among them, a very convenient function is to operate the car key through the smart watch. The communication components installed in the watch receive and transmit the frequency signal of the car system, so that the user can operate the car key function of the car system through the watch. However, existing smart watches usually place the communication components inside the watch. The communication components are easily interfered by the metal shell of the watch and the internal electronic components. Due to the high degree of interference of the communication components, the receiving and transmitting signal performance of the communication components is reduced, making it impossible for the watch to accurately identify the vehicle signal, which easily causes the failure of vehicle signal reception, and thus cannot meet the normal car key function requirements.

[0038] The utility model provides a head type automobile key, aiming to solve the technical problem of how to improve the signal transmission effect between the head type automobile key and the automobile.

[0039] In the embodiment of the present utility model, Figures 1 to 3 As shown, Figure 1 This is a structural schematic diagram of an embodiment of a head-type automobile key of the utility model; Figure 2 It is a cross-sectional view of an embodiment of a head-type automobile key of the utility model; Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0040] The watch head type automobile key includes: a watch head 10, the watch head 10 includes a shell 11 and a communication element 40, the shell 11 is provided with an installation cavity 111, and the communication element 40 is installed in the installation cavity 111; a strap 20, the strap 20 is connected to the shell 11 for being worn by a human body; a clasp 30, the clasp 30 is connected to the strap 20, and is used to adjust the wearing length of the strap 20; a signal amplifier 70, the signal amplifier 70 is installed on the clasp 30, and the signal amplifier 70 is used to transmit and amplify the communication signal of the communication element 40.

[0041] In this embodiment, the watch-type car key can be understood as loading the car control function of the car key into the smart watch, so that the user can control the car by wearing the smart watch on the wrist. The watch-type car key can only have the function of controlling the car, or it can also have other functions such as displaying time and information reminder.

[0042] The housing 11 of the keypad 10 may include a middle frame 112, a display panel and a bottom shell. The display panel and the bottom shell are respectively mounted on the top and bottom of the middle frame 112. The display panel, the middle frame 112 and the bottom shell together enclose a mounting cavity 111. The mounting cavity 111 can provide accommodation and protection for the communication element 40. The middle frame 112 may be a metal middle frame 112. The metal middle frame 112 can make the appearance of the housing 11 more metallic and can improve the overall structural strength of the housing 11, so as to improve the anti-collision ability of the keypad type automobile key.

[0043] The strap 20 can be worn on the wrist of the user to realize the wearing of the watch head type car key. The strap 20 can be made of leather, TPU or silicone. The strap 20 can be one-piece or two-piece.

[0044] The buckle 30 is used for the user to adjust the wearing length of the strap 20, so that the user can adjust the tightness of the strap 20 according to the thickness of the wrist. Of course, for a two-section strap 20, the buckle 30 is also used to connect or unfasten the two sections of the strap 20, and the user can adjust the wearing length of the strap 20 while connecting the two sections of the strap 20. Depending on the specific form, the buckle 30 may include a hook buckle, a concealed buckle, a butterfly buckle, a belt snap buckle, a folding safety buckle, a folding buckle or a pin buckle.

[0045] The buckle 30 can be a metal part or a non-metal part. For example, if the signal amplifier 70 is installed on the surface of the buckle 30 or exposed on the buckle 30, whether the buckle 30 is a metal part or a non-metal part, it will not shield the signal transmitted by the signal amplifier 70.

[0046] The communication element 40 is used to realize wireless communication with the car so that the user can control the car through the head-type car key; there are many forms of communication between the communication element 40 and the vehicle system, such as wireless communication through Bluetooth, 3G network, 4G network or 5G network, etc., which are not limited here.

[0047] For example, the communication element 40 can be part of a smart key system, a smart key system (PASSIVE KEYLESS ENTER), referred to as PKE, which uses RFID wireless radio frequency technology and a vehicle identity code recognition system, applies a development solution of a miniaturized, low-power radio frequency antenna, integrates a remote control system and a keyless system, and uses traditional vehicle circuit protection to achieve a dual radio frequency system and dual anti-theft protection. In the PKE system, the car serves as a base station and the head-type car key serves as a transponder to achieve two-way communication. The communication element 40 includes components such as a receiving antenna, a microcontroller, a high-frequency transmitting circuit, a low-frequency receiving circuit, and a control switch.

[0048] Of course, the communication element 40 can also be an element in ultra-wideband wireless carrier communication technology. Ultra-wideband (UltraWide Band) is referred to as UWB, which adopts new ultra-wideband wireless technology that is very different from traditional communication technology. It sends and receives extremely narrow pulses of nanoseconds or below to transmit data to the vehicle, has a bandwidth of 3.1 to 10.6 GHz, and is not easily interfered by other signals. Through the interaction between the UWB of the head-type car key and the vehicle UWB, the positioning algorithm characteristics can be used to identify the centimeter-level distance from the vehicle, and quickly respond easily, so that users wearing head-type car keys can automatically control the car without feeling.

[0049] The signal amplifier 70 can be a miniature repeater, which can receive the communication signal from the communication element 40, amplify the communication signal and then transmit it. In this way, the communication signal can be greatly enhanced, so that the communication element 40 can interact with external vehicles or accessories more effectively through the amplified communication signal.

[0050] Since the signal amplifier 70 is installed on the watch buckle 30, that is, outside the installation cavity 111, it can prevent the metal and screen and other electronic components of the shell 11 from interfering with or shielding the communication signal transmitted by the signal amplifier 70, so that the signal transmitted and / or received by the communication element 40 can interact with the external vehicle or accessories, ensuring that the watch-type car key can correctly identify the vehicle signal to improve the control effect of the car.

[0051] Specifically, Figure 4 and Figure 5 As shown, Figure 4 This is a structural exploded view of an embodiment of a head-type automobile key of the utility model; Figure 5 The utility model is a cross-sectional exploded view of an embodiment of a head-type automobile key.

[0052] The clasp 30 is a non-metallic part, and is provided with a receiving cavity 31, and the signal amplifier 70 is installed in the receiving cavity 31. In this way, the signal amplifier 70 can be hidden and protected, so as to improve the appearance integrity of the clasp 30 and improve the protection effect of the signal amplifier 70. The clasp 30 can be a plastic part or a ceramic part, and there is no limitation here, as long as the clasp 30 is a non-metallic part to avoid the shielding interference of the metal on the signal of the communication element 40.

[0053] In practical applications, such as Figure 5As shown, the clasp 30 includes a clasp body 33 and a cover body 34, the clasp body 33 and the cover body 34 enclose the receiving cavity 31, the clasp body 33 is connected to the strap 20, the signal amplifier 70 is connected to the clasp body 33, and the cover body 34 is connected to the clasp body 33 by a sealant to seal the receiving cavity 31. In this way, it is possible to prevent external moisture or dust from entering the receiving cavity 31 to affect the operation of the signal amplifier 70, so as to further improve the protection effect of the signal amplifier 70.

[0054] The signal amplifier 70 can be powered by an independent battery, or it can share the battery in the meter head 10 with the communication element 40. For example, a battery electrically connected to the signal amplifier 70 can be installed in the receiving cavity 31 to provide power to the signal amplifier 70, so that the signal amplifier 70 does not need to be powered by the power supply in the meter head 10.

[0055] For example, Figures 2 to 5 As shown, the meter head 10 also includes a main control board 12 installed in the installation cavity 111, and the communication element 40 is installed in the main control board 12; the meter head type automobile key also includes an electrical connector 50 extending along the strap 20, one end of the electrical connector 50 extends to the meter head 10 to be electrically connected to the main control board 12, and the other end extends into the receiving cavity 31 to be electrically connected to the signal amplifier 70. The main control board 12 is a circuit board, and the main control board 12 can directly distribute power to the communication element 40 and transmit control signals, so that the communication element 40 can operate or standby according to the user's control instructions. The main control board 12 can also distribute power to the signal amplifier 70 through the electrical connector 50, and the signal amplifier 70 can remain in a normally open state, or it can be turned on only when the communication element 40 transmits a communication signal, which is not limited here.

[0056] The electrical connector 50 may be a conductive wire harness or a flexible printed circuit (FPC), which is not limited here. The electrical connector 50 may extend along the surface of the strap 20 or extend inside the strap 20, which is not limited here. It is understood that the electrical connector 50 is flexible and bendable so that the electrical connector 50 can bend and deform along with the strap 20. Compared with the conductive wire, the flexible printed circuit board has a larger width, better toughness, and is less likely to break, which can improve the structural stability of the electrical connector 50. A high-frequency circuit can also be integrated on the flexible printed circuit board, so that the signal amplifier 70 can have both high-frequency signal transmission functions and low-frequency signal transmission functions.

[0057] Specifically, Figure 5As shown, the strap 20 is provided with a wiring channel, one end of which is connected to the receiving cavity 31, and the electrical connector 50 is provided in the wiring channel, and one end of the electrical connector 50 passes through the strap 20 and extends into the receiving cavity 31. The strap 20 is a non-metallic part, for example, it can be made of leather, TPU or silicone, so as to avoid the strap 20 from conducting electricity and causing the watch head type car key to short circuit. The wiring channel extends along the length direction of the strap 20, and the portion of the electrical connector 50 extending along the strap 20 is located in the wiring channel, so as to hide and protect the electrical connector 50, so as to improve the appearance integrity of the strap 20 and improve the protection effect of the electrical connector 50.

[0058] For example, Figure 1 , Figure 2 and Figure 5 As shown, the strap 20 includes a first strap body 21 and a second strap body 22, the first strap body 21 and the second strap body 22 are respectively connected to the opposite sides of the shell 11, the buckle 30 is connected to the end of the first strap body 21 away from the shell 11, and the second strap body 22 is provided with at least two connecting positions 221, the at least two connecting positions 221 are arranged at intervals along the length direction of the second strap body 22, and the at least two connecting positions 221 can be switchably connected to the buckle 30; the wiring channel is provided in the first strap body 21, and the wiring channel passes through the end of the first strap body 21 connected to the buckle 30 to communicate with the accommodating cavity 31.

[0059] The connection position 221 may be a connection hole, and the clasp 30 may be provided with a connection column, which may be detachably connected to different connection holes, so as to realize the switching connection between each connection position 221 and the clasp 30. The user can select a suitable wearing length to wear the strap 20 on the wrist by connecting the clasp 30 to different connection positions 221. The clasp 30 is connected to the end of the first strap 21 away from the housing 11, and the electrical connector 50 extends in the first strap 21 and passes through the end of the first strap 21 close to the clasp 30.

[0060] Specifically, Figure 5 As shown, the clasp 30 is provided with a connection groove, and the end of the first strap 21 away from the housing 11 is plugged into the connection groove, and the receiving cavity 31 is connected to the connection groove. The first strap 21 and the groove wall of the connection groove can be fixed by bonding or hot pressing, which is not limited here. The connection groove can increase the connection area between the first strap 21 and the clasp 30, so as to improve the connection strength between the clasp 30 and the first strap 21.

[0061] The electrical connector 50 and the main control board 12 in the installation cavity 111 may be directly connected and energized, or may be indirectly energized through an intermediate conductor, which is not limited here.

[0062] For example, Figures 4 to 6 As shown, Figure 6 for Figure 5 The enlarged view of the part at B in the middle. The housing 11 includes a middle frame 112, and the middle frame 112 is provided with a wire opening 113 connected to the installation cavity 111. The wiring channel passes through the end of the strap 20 close to the middle frame 112, and one end of the electrical connector 50 passes through the strap 20 and extends into the installation cavity 111 through the wire opening 113. The electrical connector 50 directly extends into the installation cavity 111 through the wire opening 113 and is connected to the main control board 12, so that the electrical connector 50 and the main control board 12 can be directly energized without the need to add an intermediate conductor, thereby simplifying the energization method of the electrical connector 50 and the main control board 12 and improving the energization stability.

[0063] Specifically, Figure 3 and Figure 6 As shown, the outer wall of the middle frame 112 is provided with an assembly groove 114, and the wire passing opening 113 is provided at the bottom of the assembly groove 114; the end wall of the watch band 20 is provided with an assembly boss 23, and the wiring channel passes through the assembly boss 23, and the assembly boss 23 is fixedly matched with the assembly groove 114. The assembly boss 23 is convexly provided at one end of the watch band 20 close to the housing 11, and the assembly boss 23 cooperates with the assembly groove 114 to achieve a fixed connection between the watch band 20 and the housing 11. The wiring channel can pass through the end wall of the assembly boss 23, so that the electrical connector 50 can pass through the assembly boss 23 and then extend into the installation cavity 111 from the wire passing opening 113. In this way, the electrical connector 50 can be partially wrapped and hidden between the wiring opening and the watch band 20, so as to improve the protection effect of the electrical connector 50 and prevent the electrical connector 50 from contacting the user.

[0064] The strap 20 can be bent and deformed by its own flexibility. When the strap 20 is bent, the main deformation position is the part connected to the middle frame 112, and the part of the electrical connector 50 at the wire opening 113 will also be bent repeatedly as the strap 20 is deformed.

[0065] In practical applications, such as Figures 3 to 6 As shown, the watch head type automobile key also includes a protective member 60, and the end wall of the watch strap 20 is provided with a mounting groove 24, and the mounting groove 24 and the wiring channel are adjacently arranged along the thickness direction of the watch strap 20, a part of the protective member 60 cooperates with the mounting groove 24, and the other part extends from the wire passing port 113 into the mounting cavity 111 and is connected to the middle frame 112, and the protective member 60 is crimped to the electrical connector 50, and the deformation resistance of the protective member 60 is greater than that of the watch strap 20.

[0066] The mounting groove 24 may be interlinked with the wiring channel, or may be separated from the wiring channel by a flexible partition, which is not limited here. The protective member 60 has elastic deformation capability, and the material of the protective member 60 may be leather, silicone or TPU, which is not limited here. The portion of the electrical connector 50 at the wire port 113 is sandwiched between the protective member 60 and the strap 20. Since the deformation resistance of the protective member 60 is greater than that of the strap 20, that is, the deformation amplitude of the protective member 60 is smaller than that of the strap 20 under the same force, the bending deformation amplitude of the strap 20 near the housing 11 will be limited, so that the deformation amplitude of the electrical connector 50 close to the protective member 60 will also be reduced accordingly. In this way, the electrical connector 50 can be prevented from being repeatedly bent to a large extent, thereby preventing the portion of the electrical connector 50 at the wire port 113 from being easily broken, resulting in poor power supply between the main control board 12 and the signal amplifier 70, so as to improve the structural stability of the electrical connector 50 and improve the power supply stability of the main control board 12 and the signal amplifier 70.

[0067] For example, Figure 4 As shown, at least two limiting protrusions 115 are convexly arranged on the outer wall of the middle frame 112, and the at least two limiting protrusions 115 are arranged at intervals along the circumference of the middle frame 112. The wire passing port 113 is located between two adjacent limiting protrusions 115, and one end of the strap 20 connected to the middle frame 112 is located between two adjacent limiting protrusions 115. The number of limiting protrusions 115 can be 4, wherein every two adjacent limiting protrusions 115 form a group, and the two groups of limiting protrusions 115 are respectively used to limit the two ends of the strap 20. The two adjacent limiting protrusions 115 are located on both sides of the width direction of the strap 20, so as to limit the deformation of the end of the strap 20 along the width direction, so as to reduce the deformation of the electrical connector 50 along the width direction of the strap 20, so as to further prevent the electrical connector 50 from being pulled and broken, so as to further improve the protection effect of the electrical connector 50.

[0068] The utility model also provides an automobile assembly, which includes an automobile and a head-type automobile key. The specific structure of the head-type automobile key refers to the above embodiment. Since the automobile assembly adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The head-type automobile key is connected to the automobile for communication.

[0069] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A head-type automobile key, characterized in that: include: A meter head, the meter head comprising a housing and a communication element, the housing being provided with an installation cavity, the communication element being installed in the installation cavity; A watch strap, the watch strap is connected to the housing and is used for being worn by a human body; A clasp, the clasp being connected to the strap and used for adjusting the wearing length of the strap; A signal amplifier is installed on the watch buckle, and is used to transmit and amplify the communication signal of the communication element.

2. The head-type automobile key according to claim 1, characterized in that: The buckle is a non-metallic part, and is provided with a receiving cavity, and the signal amplifier is installed in the receiving cavity.

3. The head-type automobile key according to claim 2, characterized in that: The clasp includes a clasp body and a cover body, the clasp body and the cover body enclose the receiving cavity, the clasp body is connected to the strap, the signal amplifier is connected to the clasp body, and the cover body and the clasp body are connected by a sealant to seal the receiving cavity.

4. The head-type automobile key according to claim 2, characterized in that: The meter head also includes a main control board installed in the installation cavity, and the communication element is installed on the main control board; the meter head type car key also includes an electrical connector extending along the watch strap, one end of the electrical connector extends to the meter head to be electrically connected to the main control board, and the other end extends into the receiving cavity to be electrically connected to the signal amplifier.

5. The head-type automobile key according to claim 4, characterized in that: The watch strap is provided with a wiring channel, one end of which is communicated with the receiving cavity, the electrical connector is provided in the wiring channel, and one end of the electrical connector passes through the watch strap and extends into the receiving cavity.

6. The head-type automobile key according to claim 5, characterized in that: The strap comprises a first strap body and a second strap body, wherein the first strap body and the second strap body are respectively connected to opposite sides of the housing, the buckle is connected to an end of the first strap body away from the housing, and the second strap body is provided with at least two connection positions, the at least two connection positions are arranged at intervals along the length direction of the second strap body, and the at least two connection positions can be switchably connected to the buckle; The wiring channel is disposed in the first belt body, and the wiring channel passes through one end of the first belt body connected to the buckle to communicate with the accommodating cavity.

7. The head-type automobile key according to claim 6, characterized in that: The clasp is provided with a connecting groove, one end of the first strap body away from the shell is inserted into the connecting groove, and the receiving cavity is communicated with the connecting groove.

8. The head-type automobile key according to claim 5, characterized in that: The shell includes a middle frame, the middle frame is provided with a wire passage connected to the installation cavity, the wiring channel passes through the end of the strap close to the middle frame, and one end of the electrical connector passes through the strap and extends into the installation cavity through the wire passage.

9. The head-type automobile key according to claim 8, characterized in that: An assembly groove is provided on the outer side wall of the middle frame, and the wire passing opening is provided at the bottom of the assembly groove; an assembly boss is convexly provided on the end wall of the watch strap, and the wiring channel passes through the assembly boss, and the assembly boss is fixedly matched with the assembly groove.

10. The head-type automobile key according to claim 8, characterized in that: The watch head type automobile key also includes a protective part. The end wall of the watch strap is provided with an installation groove. The installation groove and the wiring channel are adjacently arranged along the thickness direction of the watch strap. A part of the protective part cooperates with the installation groove, and the other part extends from the wire passing port into the installation cavity and is connected to the middle frame. The protective part is crimped to the electrical connector, and the deformation resistance of the protective part is greater than that of the watch strap.

11. The head-type automobile key according to claim 8, characterized in that: The outer side wall of the middle frame is provided with at least two limiting protrusions, and the at least two limiting protrusions are arranged at intervals along the circumference of the middle frame. The wire passing opening is located between two adjacent limiting protrusions, and one end of the strap connected to the middle frame is located between two adjacent limiting protrusions.

12. The head-type automobile key according to any one of claims 4 to 11, characterized in that: The electrical connection body includes a flexible circuit board.

13. An automobile component, characterized in that: The invention comprises a car and a head-type car key as claimed in any one of claims 1 to 12, wherein the head-type car key is communicatively connected with the car.

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