Instrument assembly and electric vehicle

Abstract

The invention relates to an instrument assembly and an electric vehicle, the instrument assembly comprises a quick release support assembly, the quick release support assembly comprises a clamping mechanism, and the clamping mechanism comprises a fixed buckle and a movable buckle capable of moving relative to the fixed buckle; the replacement device comprises a second instrument or a functional device; through the clamping mechanism, the replacement device can be selectively assembled on the quick release bracket assembly; the second instrument is in electric connection and signal connection with the quick release bracket assembly through the connecting interface; the anti-theft support is provided with a first installation position and a second installation position which are used for being detachably connected with the first instrument and the quick release support assembly respectively, and the anti-theft support is further provided with a locking mechanism which is used for limiting the movable buckle, so that the replacement device is clamped on the quick release support assembly and cannot be taken down. The technical problems that an existing instrument is poor in adaptability and tedious in installation are solved, and instrument function expansion and use safety improvement are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle instrument design, in particular to an instrument assembly and an electric vehicle. Background Art

[0002] In the prior art, the instrument shape and installation structure of electric two-wheeled vehicles are only suitable for a single model, resulting in poor instrument adaptability and shell expandability. The function of the instrument is limited to displaying basic information of the vehicle. Compared with electric vehicles, the function is single and cannot meet the differentiated needs of different users for display instrument functions. In addition, conventional instruments are fixed to the body bracket by screws, and the instrument wiring harness connector is manually plugged in and out. When installing and disassembling, it is often necessary to remove the exterior trim around the instrument, which makes the installation, maintenance and disassembly of the instrument cumbersome and has poor anti-theft performance. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an instrument assembly and an electric vehicle, which solve the problems of poor adaptability and complicated installation of the prior instruments, and achieve instrument function expansion and safety improvement.

[0004] The technical solution adopted by the present invention is as follows:

[0005] An instrument assembly includes a quick-release bracket assembly, a replacement device, an anti-theft bracket and a first instrument;

[0006] The quick-release bracket assembly is provided with a support surface, and clamping mechanisms are provided at both ends of the support surface for clamping and connecting with the replacement device;

[0007] The clamping mechanism includes a fixed buckle arranged at one end of the support surface, and a movable buckle arranged at the other end of the support surface and capable of moving relative to the fixed buckle;

[0008] The replacement device includes a second instrument or a functional device, and the functional device includes a decorative part or a target electronic device; the replacement device is selectively assembled to the quick-release bracket assembly through the clamping mechanism;

[0009] The replacement device and the quick-release bracket assembly form an electrical connection, or an electrical connection and a signal connection, via a connection interface;

[0010] The connection interface includes a first spring pin connector connector provided on the supporting surface, and a second spring pin connector connector A provided on the supported surface of the second instrument;

[0011] The quick-release bracket assembly is also provided with a wiring terminal, which is used to connect the first connector of the spring pin connector to the control module of the vehicle;

[0012] The anti-theft bracket is provided with a first installation position, a second installation position and a locking mechanism;

[0013] The first mounting position is used for detachably connecting the first instrument;

[0014] The second mounting position is used for detachably connecting the quick-release bracket assembly, and after the connection, the movable buckle of the quick-release bracket assembly is close to one side of the locking mechanism;

[0015] The locking mechanism is used to limit the position of the movable buckle so that the replacement device is clamped on the quick-release bracket assembly and cannot be removed.

[0016] Further technical solutions are:

[0017] The first instrument and the vehicle control module are used to display basic vehicle information; the second instrument is connected to the vehicle control module through the quick-release bracket assembly, and is used to display basic vehicle information and extended information, and provide functional and entertainment services.

[0018] The structure of the quick-release bracket assembly includes a shell and a handle;

[0019] The support surface is located on the surface of the shell;

[0020] A cavity is formed in the shell, a portion of the handle extends into the cavity, and is connected to the shell through a first elastic member; the first elastic member provides a preload force and a restoring force along the first direction, so that the handle can move relative to the cavity along the first direction;

[0021] The handle is slidably matched with the movable buckle;

[0022] The movable buckle is connected to the shell through a second elastic member, and the second elastic member provides a preload force and a restoring force along a second direction, so that the movable buckle moves along the cavity relative to the fixed buckle, thereby adjusting the distance between the two buckles; the second direction is perpendicular to the first direction.

[0023] The sliding matching structure of the handle and the movable buckle comprises an inclined surface arranged on the movable buckle, and a boss arranged on the handle and matching with the inclined surface.

[0024] The movable buckle is provided with a positioning block, on which is provided a fitting surface for fitting the replacement device; the shell is provided with a positioning hole for penetrating the positioning block.

[0025] The target electronic device comprises a mobile phone holder, the mobile phone holder is used to clamp the target electronic product, and the mobile phone holder is provided with a spring pin connector second connector B used to cooperate with the spring pin connector first connector;

[0026] A wireless charging module is provided in the mobile phone holder, and the wireless charging module is electrically connected to the second connector B of the spring pin connector.

[0027] The locking mechanism is a mechanical lock or an electromagnetic lock; the structure of the locking mechanism includes a lock tongue, and when the lock tongue moves to the upper locking position, it can hold the movable buckle from the outside so that it cannot move;

[0028] The electromagnetic lock is electrically connected to the power module of the vehicle and is turned on and off by a switch control circuit;

[0029] The switch switches the circuit on and off according to whether a control module of the vehicle is powered off.

[0030] A clearance groove is provided on one side of the anti-theft bracket located at the second installation position, and the lock tongue can extend into the clearance groove when it moves to the unlocking position.

[0031] Both ends of the supported surface of the second instrument are respectively provided with slots that cooperate with the fixed buckle and the movable buckle.

[0032] The present invention also provides an electric vehicle, comprising the instrument assembly.

[0033] The beneficial effects of the present invention are as follows:

[0034] The instrument assembly of the present invention has a reasonable structural design and a simple configuration. It is not adapted to a specific vehicle model. When installing or removing the instrument, it is not necessary to remove the surrounding matching exterior parts, which greatly improves the adaptability and installation convenience of the instrument. It has the following advantages:

[0035] 1. On the one hand, the present invention provides the basic vehicle information display function through the first instrument, which meets the design specification requirements. On the other hand, the selective assembly of the replacement device is realized through the quick-release bracket assembly to meet the differentiated needs of different users. Among them, the vehicle extended information display and other extended services can be realized by installing the second instrument, or by installing the user's own mobile phone, tablet and other functional modules to realize extended services, and the second instrument can be used alone in other scenarios.

[0036] 2. The second meter of the present invention is connected to the quick-release bracket assembly through a point-contact spring pin connector. When in use, after the second meter and the quick-release bracket assembly are aligned and assembled, the male pin and the female pin of the spring pin connector contact each other, and current and signals can be conducted. Compared with the connection structure of conventional wiring terminals in the prior art, there is no need for plugging and unplugging operations. The electrical signal connection is almost achieved at the same time when the two are clamped and assembled, which is convenient and fast. Not only does it realize the rapid disassembly and assembly of the second meter, but it also realizes the rapid disassembly and replacement of the second meter and other functional devices, meeting more application requirements.

[0037] 3. The present invention can assemble the quick-release bracket assembly and the first instrument at the same time through the anti-theft bracket, and the replacement device assembled on the quick-release bracket is protected from theft through the locking mechanism, thereby improving safety while ensuring the compactness of the assembly structure.

[0038] Other features and advantages of the present invention will be set forth in the following description or may be learned by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the decomposition structure of the first implementation method of the embodiment of the present invention.

[0040] Figure 2 This is a schematic diagram of the assembly structure of the first implementation mode of the embodiment of the present invention.

[0041] Figure 3 The figure is a schematic diagram of the exploded structure of the quick-release bracket assembly according to an embodiment of the present invention.

[0042] Figure 4 The figure is a schematic diagram of the assembly structure of the handle, the movable buckle and the housing according to an embodiment of the present invention.

[0043] Figure 5 It is a schematic diagram of the assembly structure of the handle and the housing according to an embodiment of the present invention.

[0044] Figure 6 Schematic diagram of the structure of the second instrument according to an embodiment of the present invention.

[0045] Figure 7 The figure is a schematic diagram of the assembly structure of the quick-release bracket assembly and the anti-theft bracket according to an embodiment of the present invention.

[0046] Figure 8 It is a schematic diagram of the structure of the movable buckle according to an embodiment of the present invention.

[0047] Fig. 9 This is a schematic diagram of the decomposition structure of the second implementation method of the embodiment of the present invention.

[0048] Fig.10 This is a schematic diagram of the exploded structure of a mobile phone holder according to a second implementation manner of an embodiment of the present invention.

[0049] In the figure:

[0050] 100. First instrument;

[0051] 200, second instrument; 201, back shell; 202, second connector A of spring pin connector; 203, card slot;

[0052] 300, anti-theft bracket; 301, clearance slot; 302, mechanical lock; 303, lock tongue; 304, second installation position; 305, first installation position;

[0053] 400, quick-release bracket assembly; 401, top shell; 402, first elastic member; 403, movable buckle; 404, second elastic member; 405, handle; 406, bottom shell; 407, first connector of spring pin connector; 408, supporting surface; 409, fixing buckle; 410, wiring terminal; 4031, inclined surface; 4032, positioning block; 4033, mounting groove; 4051, boss; 4052, guide strip; 4061, guide slide;

[0054] 700, mobile phone;

[0055] 800, mobile phone holder; 801, clamp; 802, second end of terminal connector; 803, wireless charging board; 804, first end of terminal connector; 805, power adapter board; 806, second connector B of spring pin connector; 807, base; 808, snap-on part. DETAILED DESCRIPTION

[0056] The specific implementation of the present invention is described below with reference to the accompanying drawings.

[0057] See also Figures 1 to 3 , Figure 6 , an instrument assembly of this embodiment includes a quick-release bracket assembly 400, a replacement device, an anti-theft bracket 300 and a first instrument 100;

[0058] A support surface 408 is provided on the quick-release bracket assembly 400, and clamping mechanisms are provided at both ends of the support surface 408, which are used to be clamped and connected with the replacement device;

[0059] The clamping mechanism includes a fixed buckle 409 provided at one end of the support surface 408, and a movable buckle 403 provided at the other end of the support surface 408 and capable of moving relative to the fixed buckle 409;

[0060] The replacement device includes one of a second meter 200 and a functional device, wherein the functional device includes a device component or a target electronic device; the replacement device is selectively assembled to the quick-release bracket assembly 400 through the clamping mechanism;

[0061] The replacement device and the quick-release bracket assembly 400 are electrically connected, or electrically and signal connected, via a connection interface;

[0062] The connection interface includes a first spring pin connector connector 407 provided on the supporting surface 408 and a second spring pin connector connector A202 provided on the supported surface of the second meter 200;

[0063] As a specific implementation, the first connector 407 of the spring pin connector is a male connector of the spring pin connector, and the second connector A 202 of the spring pin connector is a female connector of the spring pin connector;

[0064] The quick-release bracket assembly 400 is also provided with a wiring terminal 410, which is used to connect the first connector 407 of the spring pin connector to the control module of the vehicle;

[0065] The anti-theft bracket 300 is provided with a first mounting position 305, a second mounting position 304 and a locking mechanism;

[0066] The first installation position 305 is used for detachably connecting the first meter 100;

[0067] The second mounting position 304 is used for detachably connecting the quick-release bracket assembly 400;

[0068] The locking mechanism is used to limit the movable buckle 403 so that the replacement device is clamped on the quick-release bracket assembly 400 and cannot be removed.

[0069] This embodiment provides two kinds of meters. As a first optional implementation, the first meter 100 is small and simple, and can be connected to the vehicle control module, such as the central control PCBA, through a communication protocol (such as 485 protocol, wifi, 4G, CAN, one-line communication protocol, etc.), and can be used to display basic vehicle information, including speed, power, mileage, alarm signals, etc.; the second meter 200 is connected to the spring pin connector second connector A 202 of the quick release bracket assembly 400 through the spring pin connector first connector 407, and then connected to the vehicle control module, such as the central control PCBA, through the wiring harness using the terminal 410 on the quick release bracket assembly 400, and can be used to display the basic vehicle information and extended information, and provide functional and entertainment services, including navigation, music and other multimedia services. Among them, the extended information includes other vehicle information such as gear position.

[0070] In a first optional implementation, the first and second instruments cooperate to provide basic information display functions, extended information display and extended service functions for the vehicle.

[0071] As a preferred embodiment, the second instrument 200 is equipped with an Android system and has navigation, music and other functions similar to those of a mobile phone.

[0072] The second meter of this embodiment is connected to the quick-release bracket assembly 400 by a spring pin connector. When in use, after the second meter 200 and the quick-release bracket assembly 400 are aligned and assembled, the male pin and the female pin of the spring pin connector contact each other, and current and signals can be conducted. Compared with ordinary plug-in connectors, there is no need for disassembly and removal operations, and the connection can be achieved only by alignment and contact. In combination with the operation of the clamping mechanism of the quick-release bracket assembly, an efficient and convenient quick-release function for replacement devices is achieved.

[0073] As a preferred method, Figure 6As shown, both ends of the supported surface of the second meter 200 are provided with slots 203 respectively cooperating with the fixed buckle 409 and the movable buckle 403. Through the cooperation between the slots 203 and the clamping mechanism, the quick-release bracket assembly 400 clamps and fixes the second meter 200.

[0074] Specifically, the second meter 200 includes a display screen on the front and a back shell 201 on the back. As a preferred embodiment, the supported surface is located on the surface of the back shell 201 of the second meter 200. The second connector A 202 of the spring pin connector is provided on the supported surface.

[0075] See also Figures 3 to 5 , Figure 8 , the structure of the quick-release bracket assembly 400 includes a housing and a handle 405 disposed on one side of the housing;

[0076] As a preferred embodiment, the housing is assembled by buckling the top housing 401 and the bottom housing 406;

[0077] The support surface 408 is located on the upper surface of the top shell 401;

[0078] A cavity is formed in the shell, and the movable buckle 403 is slidably matched with the cavity;

[0079] A portion of the handle 405 is located outside the cavity, and another portion extends into the cavity. The portion extending into the cavity is connected to the housing through a first elastic member 402. The first elastic member 405 extends in a first direction (see Figure 4 In the pressing direction, a preload force and a restoring force are provided to enable the handle 405 to move along a first direction relative to the cavity;

[0080] The handle 405 is slidably matched with the movable buckle 403; the movable buckle 403 is connected to the housing through the second elastic member 404, and the second elastic member 404 is moved along the second direction (see Figure 4 The second direction provides a preload force and a restoring force, so that the movable buckle 403 moves along the cavity relative to the fixed buckle 409, thereby adjusting the distance between the two buckles; the second direction is perpendicular to the first direction.

[0081] The first elastic member 402 and the second elastic member 404 can specifically be compression springs. The two ends of the first elastic member 402 are respectively connected to the handle 405 and the bottom shell 406. The first elastic member 402 provides a pre-tightening force to fix the handle 405 in the shell. The two ends of the second elastic member 404 are respectively connected to the movable buckle 403 and the top shell 401. The second elastic member 404 provides a pre-tightening force to clamp the movable buckle 403 in the shell in a buckled position.

[0082] As a preferred embodiment, the sliding matching structure between the handle 405 and the movable buckle 403 includes an inclined surface 4031 provided on the movable buckle 403 , and a boss 4051 provided on the handle 405 and matching with the inclined surface 4031 .

[0083] As a preferred embodiment, a positioning block 4032 is provided on the movable buckle 403, and a fitting surface for fitting the replacement device is provided on the movable buckle 403; correspondingly, a positioning hole for penetrating the positioning block 4032 is provided on the top shell 401. When the movable buckle 403 is clamped in the shell, the positioning block 4032 passes through the positioning hole and extends out of the inner wall of the top shell 401. When clamping is required, the movable buckle 403 slides out of the shell, and after the second instrument or functional device is placed, the movable buckle 403 is reset under the restoring force of the elastic member, and the positioning block 4032 passes through the positioning hole and extends out of the inner wall of the top shell 401 to clamp the second instrument or functional device.

[0084] As a preferred embodiment, a mounting groove 4033 is provided on the movable buckle 403 , which is used to accommodate the second elastic member 404 .

[0085] As a preferred embodiment, a guide slide 4061 is provided in the bottom shell 406, which is used to cooperate with the bottom of the movable buckle 403 to keep the movable buckle 403 stable during the sliding process.

[0086] As a preferred embodiment, a guide strip 4052 is provided on the handle 405, which is used to cooperate with a corresponding guide portion in the bottom shell 406 to keep the handle 405 stable during movement.

[0087] like Figure 4 As shown, the handle 405 is pressed in the pressing direction, and the handle 405 moves inward to squeeze the first elastic member 402. The boss 4051 of the handle 405 presses against the inclined surface 4031 of the movable buckle 403, and the movable buckle 403 is pushed out along the sliding direction, and the clamped replacement device can be removed. The external force pressing the handle 405 is cancelled, and the handle 405 and the movable buckle 403 are respectively restored to their original positions under the action of the corresponding spring members. When reassembly is required, the handle 405 is pressed again, and the movable buckle 403 is pushed out along the sliding direction, and the replacement device is placed on the support surface 408. Then the external force pressing the handle 405 is cancelled again, and the movable buckle 403 is pushed out along the sliding direction. Figure 4 By resetting in the direction opposite to the sliding direction, the replacement device can be clamped and the electrical connection or electrical signal connection can be achieved at the same time. The installation and removal of the replacement device can be completed in just a few seconds, which is convenient and quick.

[0088] As a preferred embodiment, two groups of the boss 4051 of the handle 405 and the inclined surface 4031 of the movable buckle 403 can be provided along the moving direction of the handle 405 to facilitate pressing.

[0089] like Figure 7As shown, the locking mechanism is an electromagnetic lock or a mechanical lock 302, which includes a lock core and a lock tongue 303; a clearance groove 301 is provided on one side of the anti-theft bracket 300 located at the second installation position 304.

[0090] Specifically, the lock core can be fixed on the anti-theft bracket 300 through a locking member, and then the lock tongue 303 is fixed on the lock core through screws.

[0091] As a specific implementation, for the mechanical lock 302, the lock tongue 303 can rotate relative to the lock core. The quick-release bracket assembly 400 with the second instrument 200 installed is fastened to the anti-theft bracket 300 by screws. When locking, the lock tongue 303 rotates to the locking position. At this time, the lock tongue 303 is in a horizontal position. If the handle 405 is pressed in the direction of the arrow, the lock tongue 303 provides a force in the direction of the arrow in the figure, which resists the active buckle 403 so that it cannot move, keeps the second instrument or functional device clamped, and realizes the anti-theft function. When unlocking, the lock tongue 303 rotates downward 25 degrees to the unlocking position. At this time, the lock tongue 303 can extend into the clearance groove 301, release the limit on the active buckle 403, and the active buckle 403 can be moved by pressing the handle 405, so that the second instrument or functional device can be taken out.

[0092] The mechanical lock 302 is preferably a password lock. When the digital password of the password lock is dialed to the correct position, the lock tongue rotates.

[0093] As a specific implementation, the electromagnetic lock is electrically connected to the power module of the vehicle, and the circuit is turned on and off by a switch control. When in use, the switch is turned on, the electromagnetic lock is powered on, and the lock tongue is automatically retracted, which is an unlocked state; the switch is turned off, the electromagnetic lock is powered off, and the lock tongue is automatically extended, which is a locked anti-theft state. The circuit can be turned on and off by the switch according to whether the control module of the vehicle is powered off. Specifically, when the control module of the vehicle is powered off, the control switch is turned off, and the electromagnetic lock is locked; when the control module of the vehicle is powered on, the control switch is turned on, and the electromagnetic lock is unlocked.

[0094] The mechanical lock or electromagnetic lock used in this embodiment can be purchased and can be used by those skilled in the art to configure it according to common knowledge to achieve the above-mentioned corresponding functions.

[0095] In a second optional implementation, the second meter 200 can be quickly replaced with a functional device, which includes decorative parts, target electronic devices, and other items or devices that meet various usage requirements. The target electronic device in this embodiment includes a mobile phone holder, which can be used to clamp a target electronic product, and the target electronic product can be a device that provides entertainment and services, including a mobile phone, a tablet computer, an electronic toy, an electronic watch, etc.

[0096] As a specific implementation, see Fig. 9and Fig.10 , the structure of the mobile phone holder 800 includes a clamp 801 and a base 807, and the clamp 801 is connected to the base 807;

[0097] A power adapter board 805 is provided in the base 807, a second spring pin connector B 806 is provided on the power adapter board 805, and a first terminal connector end 804 is provided on the power adapter board 805 to form an electrical connection with the second spring pin connector B 806;

[0098] A wireless charging plate 803 is disposed in the holder 801 , on which a terminal connector second end 802 for connecting to a terminal connector first end 804 is disposed.

[0099] The connection between the mobile phone holder 800 and the quick release holder assembly 400 is similar to the connection structure between the second meter 200 and the quick release holder assembly 400. The mobile phone holder 800 and the quick release holder assembly 400 are clamped or loosened, and connected through the first connector 407 of the spring pin connector and the second connector B 806 of the spring pin connector, and an electrical connection relationship is formed while the clamping connection is in use. When in use, the quick release holder assembly 400 can be installed on the vehicle body, and the active buckle 403 of the clamping mechanism is pulled to clamp the mobile phone holder 800 on the quick release holder assembly 400, and the second connector B 806 of the spring pin connector is in contact with the first connector 407 of the spring pin connector, and the electrical signal of the vehicle power module is transmitted to the wireless charging module, and then the mobile phone 700 is clamped to the mobile phone holder 800 through the clamp 801, and the mobile phone 700 can be charged through the wireless charging module.

[0100] Specifically, the second connector B 806 of the spring pin connector is disposed on one side of the power adapter board 805 close to the bottom of the base 807 and extends out of the supported surface; the first end 804 of the terminal connector is disposed on one side of the power adapter board 805 away from the bottom of the base 807 and is disposed opposite to the second connector B 806 of the spring pin connector.

[0101] Specifically, the first connector 407 of the spring pin connector is a male connector of the spring pin connector, and the second connector B 806 of the spring pin connector is a female connector of the spring pin connector.

[0102] Specifically, the clamp 801 is provided with a pulling spring-type clamping component that can be used for clamping and loosening.

[0103] Specifically, the bottom of the base 807 of the mobile phone holder 800 forms a supported portion corresponding to the supporting surface 408 of the quick-release holder assembly 400, and both ends of the supported portion are provided with snap-fitting portions 808 that snap-fit ​​with the fixed buckle 409 and the movable buckle 403.

[0104] In the second optional implementation, on the one hand, the user can choose not to equip the second instrument 200, and only understand the vehicle information through the first instrument 100, and directly assemble their own mobile phones, tablets, etc. to the quick-release bracket assembly 400 or assemble them through the mobile phone holder 800, without affecting the normal use of the vehicle, and still obtain navigation, music and other services, and can obtain the charging function through the mobile phone holder 800. When in use, the quick-release bracket assembly 400 is installed on the vehicle body, the active buckle 403 of the clamping mechanism is pulled, and the mobile phone holder 800 is clamped on the quick-release bracket assembly 400, the second connector B 806 of the spring pin connector is in contact with the first connector 407 of the spring pin connector, and the electrical signal of the vehicle power module is transmitted to the wireless charging module, and then the mobile phone 700 is clamped to the mobile phone holder 800 through the clamp 801, and the mobile phone 700 can be charged through the wireless charging module. On the other hand, the user can choose to equip two instruments at the same time and use the two instruments at the same time according to their own needs, or remove the second instrument 200 and replace it with their own mobile phone. The removed second instrument 200 can be mounted on other devices such as toy cars to realize the display function.

[0105] This embodiment also provides an electric vehicle, which includes the above-mentioned instrument assembly.

[0106] Those skilled in the art can understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An instrument assembly, characterized in that: It comprises a quick-release bracket assembly (400), a replacement device, an anti-theft bracket (300) and a first meter (100); The quick-release bracket assembly (400) is provided with a support surface (408), and clamping mechanisms are provided at both ends of the support surface (408) for clamping and connecting with the replacement device; The clamping mechanism comprises a fixed buckle (409) provided at one end of the support surface (408), and a movable buckle (403) provided at the other end of the support surface (408) and capable of moving relative to the fixed buckle (409); The replacement device comprises a second instrument (200) or a functional device, and the functional device comprises a decorative part or a target electronic device; the replacement device is selectively assembled onto the quick-release bracket assembly (400) through the clamping mechanism; An electrical connection, or an electrical connection and a signal connection, is formed between the replacement device and the quick-release bracket assembly (400) via a connection interface; The connection interface comprises a first spring pin connector joint (407) provided on the supporting surface (408), and a second spring pin connector joint A (202) provided on the supported surface of the second meter (200); The quick-release bracket assembly (400) is also provided with a wiring terminal (410) for connecting the first connector (407) of the spring pin connector to a control module of the vehicle; The anti-theft bracket (300) is provided with a first installation position (305), a second installation position (304) and a locking mechanism; The first mounting position (305) is used for detachably connecting the first instrument (100); The second mounting position (304) is used to detachably connect the quick-release bracket assembly (400), and after the connection, the movable buckle (403) of the quick-release bracket assembly (400) is close to one side of the locking mechanism; The locking mechanism is used to limit the position of the movable buckle (403), so that the replacement device is clamped on the quick-release bracket assembly (400) and cannot be removed.

2. The instrument assembly according to claim 1, characterized in that: The first instrument (100) and the vehicle control module are used to display basic vehicle information; the second instrument (200) is connected to the vehicle control module via the quick-release bracket assembly (400) and is used to display basic vehicle information and extended information, and provide functional and entertainment services.

3. The instrument assembly according to claim 1, characterized in that: The structure of the quick-release bracket assembly (400) comprises a housing and a handle (405); The support surface (408) is located on the surface of the shell; A cavity is formed in the shell, a portion of the handle (405) extends into the cavity, and is connected to the shell via a first elastic member (402); the first elastic member (402) provides a preload force and a restoring force along the first direction, so that the handle (405) can move relative to the cavity along the first direction; The handle (405) is slidably matched with the movable buckle (403); The movable buckle (403) is connected to the shell through a second elastic member (404), and the second elastic member (404) provides a preload force and a restoring force along a second direction, so that the movable buckle (403) moves along the cavity relative to the fixed buckle (409), thereby adjusting the distance between the two buckles; the second direction is perpendicular to the first direction.

4. The instrument assembly according to claim 3, characterized in that: The sliding matching structure of the handle (405) and the movable buckle (403) comprises an inclined surface (4031) arranged on the movable buckle (403), and a boss (4051) arranged on the handle (405) and matching with the inclined surface (4031).

5. The instrument assembly according to claim 3, characterized in that: The movable buckle (403) is provided with a positioning block (4032), on which is provided a fitting surface for fitting the replacement device; the housing is provided with a positioning hole for penetrating the positioning block (4032).

6. The instrument assembly according to claim 1, characterized in that: The target electronic device comprises a mobile phone holder (800), the mobile phone holder (800) is used to clamp the target electronic product, and the mobile phone holder (800) is provided with a spring pin connector second connector B (806) for matching with the spring pin connector first connector (407); The mobile phone holder (800) is provided with a wireless charging module, and the wireless charging module is electrically connected to the second connector B (806) of the spring pin connector.

7. The instrument assembly according to claim 1, characterized in that: The locking mechanism is a mechanical lock or an electromagnetic lock; the structure of the locking mechanism includes a lock tongue, and when the lock tongue moves to the upper locking position, it can hold the movable buckle (403) from the outside so that it cannot move; The electromagnetic lock is electrically connected to the power module of the vehicle and is turned on and off by a switch control circuit; The switch switches the circuit on and off according to whether a control module of the vehicle is powered off.

8. The instrument assembly according to claim 7, characterized in that: A clearance groove (301) is provided on one side of the anti-theft bracket (300) located at the second installation position (304), and the locking tongue (303) can extend into the clearance groove (301) when it moves to the unlocking position.

9. The instrument assembly according to claim 1, characterized in that: Both ends of the supported surface of the second meter (200) are provided with slots (203) respectively cooperating with the fixed buckle (409) and the movable buckle (403).

10. An electric vehicle, characterized in that: An instrument assembly comprising any one of claims 1 to 9.

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