CN210297688U

CN210297688U - Vehicle-mounted unit

Info

Publication number: CN210297688U
Application number: CN201921403179.XU
Authority: CN
Inventors: 李东声
Original assignee: Tendyron Corp
Current assignee: Tendyron Corp
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-04-10
Anticipated expiration: 2029-08-27

Abstract

The utility model provides an on-board unit, include: a rear housing, a rear surface of which is provided with a sticking part; a front case forming a first receiving space with the rear case; the front surface of the front shell is provided with a front positioning shell, the lower part of the front positioning shell is fixedly connected with the bottom of the front surface of the front shell through a connecting structure, the front surface of the front shell and the front positioning shell form a U-shaped clamping groove, a second accommodating space is formed in the front positioning shell, and the first accommodating space is communicated with the second accommodating space; the display screen is arranged in the second accommodating space of the front positioning shell; the prompting component is arranged in the second accommodating space of the front positioning shell; the circuit board is electrically connected with the display screen, the prompting component and the solar cell panel respectively; a battery electrically connected to the circuit board; the solar cell panel is arranged in the first accommodating space, exposed through an exposure window arranged on the rear surface of the rear shell and electrically connected with the circuit board; the clamping component comprises a first clamping part and a second clamping part which are telescopically arranged on the front shell.

Description

Vehicle-mounted unit

Technical Field

The utility model relates to an electronic equipment technical field especially relates to an on-board unit.

Background

With the wide laying and technical development of the domestic highway Electronic Toll Collection (ETC), more and more vehicle-mounted devices are widely sold and used. However, in the card-inserting type structure design of an On Board Unit (OBU) in the existing ETC system, a card slot or a card fixing box needs to be arranged, so that the volume of the On Board Unit after card insertion is close to twice of that of a user card when the On Board Unit works, and the large-size On Board Unit can interfere with the line of sight of a driver of a vehicle when the driver drives, thereby increasing the driving risk. Meanwhile, the function of the conventional vehicle-mounted unit is single, other cards or equipment cannot be fixed, more functions are realized, and resource waste is caused.

Therefore, how to design a structure of an on-board unit so that the volume of the on-board unit is reduced and the function of fixing other cards is added is a technical problem to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems.

A primary object of the present invention is to provide an on-board unit.

In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:

the utility model provides an on-board unit, include: a rear case 10, a rear surface of the rear case 10 being provided with an attaching member 101; a front case 20 that is engaged with the rear case 10 and forms a first accommodation space with the rear case 10; a front positioning shell 201 is arranged on the front surface of the front shell 20, the lower part of the front positioning shell 201 is fixedly connected with the bottom of the front surface of the front shell 20 through a connecting structure 202, the front surface of the front shell 20 and the front positioning shell 201 form a U-shaped clamping groove 203, a second accommodating space is arranged in the front positioning shell 201, and the first accommodating space is communicated with the second accommodating space; a display screen 30, wherein the display screen 30 is disposed in the second accommodating space of the front positioning shell 201 and is exposed through a display window 2011 disposed on the front positioning shell 201; the prompting component 40 is arranged in the second accommodating space of the front positioning shell 201, and is exposed through a prompting window 2012 arranged on the front positioning shell 201; the circuit board 50 is arranged in the first accommodating space, and is electrically connected with the display screen 30 and the prompting component 40 respectively; a battery 60, the battery 60 being disposed in the first receiving space and electrically connected to the circuit board 50; a solar cell panel 70 disposed in the first receiving space, exposed through an exposure window provided on a rear surface of the rear case 10, and electrically connected to the circuit board 50; a clip member 80, said clip member 80 comprising a first clip portion 801 and a second clip portion 802, said first clip portion 801 and/or said second clip portion 802 being telescopically disposed on said front housing 20; in an idle state, first grip 801 and/or second grip 802 contract on front case 20; in an operating state, the first clamping portion 801 and/or the second clamping portion 802 extend, and the device to be clamped is clamped between the first clamping portion 801 and the second clamping portion 802.

In addition, the first clamping portion 801 includes a first link 8011 and a first clamping claw 8012, the first clamping claw 8012 is disposed at a first end of the first link 8011, a first through hole 204 is disposed on a first sidewall of the front housing 20, a second end of the first link 8011 of the first clamping portion 801 is disposed in the first receiving space through the first through hole 204, and the second end of the first link 8011 of the first clamping portion 801 is connected to the first positioning structure 206 disposed in the first receiving space through a first elastic member 8013.

In addition, the second clamping portion 802 includes a second link 8021 and a second clamping claw 8022, the second clamping claw 8022 is disposed at a first end portion of the second link 8021, a second through hole 205 is disposed on a second side wall of the front housing 20, the first side wall is disposed opposite to the second side wall, a second end portion of the second link 8021 of the second clamping portion 802 is disposed in the first accommodating space through the second through hole 205, and the second end portion of the second link 8021 of the second clamping portion 802 is connected to the second positioning structure 207 disposed in the first accommodating space through a second elastic member 8023.

Furthermore, the first clamping portion 801 includes a first rod 8011 and a first clamping jaw 8012, the first clamping jaw 8012 is disposed at a first end of the first rod 8011, a first through hole 204 is disposed on a first sidewall of the front housing 20, a second end of the first rod 8011 of the first clamping portion 801 is disposed in the first receiving space through the first through hole 204, a second end of the first rod 8011 of the first clamping portion 801 is fixedly connected to one side of a shift element 8014, a spring 8015 is sleeved on the first rod 8011 and is located between the shift element 8014 and an inner wall of the first sidewall of the front housing 20, the other side of the shift element 8014 is connected to a rack 8016, and the rack 8016 is connected to the rack 803 on a tangent line of a gear 803; second holder 802 includes second link 8021 and second gripper jaw 8022, and second gripper jaw 8022 sets up first end of second link 8021, be provided with sawtooth 8024 on the second link 8021, set up second through-hole 205 on the second lateral wall of procapsid 20, first lateral wall with the second lateral wall sets up relatively, the second end of second link 8021 of second holder 802 passes second through-hole 205 sets up in first accommodation space, with gear 803 toothing on the other tangent line that is relative with a tangent line of gear 803.

In addition, the method further comprises the following steps: and a key 90 disposed in the first receiving space and exposed through a key window provided on a front surface of the front case 20 and electrically connected to the circuit board 50.

In addition, the method further comprises the following steps: an antenna coil 100; a step 103 is provided at a portion where the rear case 10 is engaged with the front case 20, a groove 104 surrounding a circumference is formed after the rear case 10 is engaged with the front case 20, and the antenna coil 100 is wound around the groove 104 and electrically connected to the circuit board 50 through a wiring hole provided in the rear case 10.

In addition, the method further comprises the following steps: a communication interface 110, wherein the communication interface 110 is disposed in the first receiving space, exposed through a communication window provided on a sidewall of the front case 20, and electrically connected to the circuit board 50.

In addition, the communication interface 110 is a USB interface.

In addition, the prompting component 40 is a prompting lamp or a speaker.

In addition, the method further comprises the following steps: a name plate 120, the name plate 120 being fixed on a front surface of the front positioning housing 201 corresponding to the display window 2011.

By the above-mentioned the technical scheme provided by the utility model, the utility model provides an on-board unit, this on-board unit do not set up draw-in groove or the fixed box of card, can utilize clamping part 80 to hold the user card centre gripping in on-board unit's outside to compare with current on-board unit, reduced on-board unit's volume, improved vehicle driving's security. In addition, if the user card module is embedded in the circuit board 50 of the on-board unit, other cards can be clamped by the clamping component 80, so that the functions of the on-board unit are expanded, for example, an identity card can be clamped by the clamping component 80, and reading of the identity card is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a front surface of a front housing of an on-board unit according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a back side of an on-board unit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a right side of the on-board unit according to the embodiment of the present invention;

fig. 4 is a sectional view of a front housing in a use state of a first mode of realization of a holding member 80 of an on-vehicle unit according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a front housing in an idle state according to a first implementation of a holding member 80 of an on-board unit according to an embodiment of the present invention;

fig. 6 is a sectional view of a front housing in a use state of a second embodiment of a holding member 80 of an on-board unit according to an embodiment of the present invention;

fig. 7 is a sectional view of a front housing in an idle state of a second embodiment of a clamping member 80 of an on-board unit according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Examples

Fig. 1 to 7 are schematic structural diagrams of an on-board unit according to an embodiment of the present invention, and as shown in fig. 1 to 7, the on-board unit may generally include:

a rear case 10, a rear surface of the rear case 10 being provided with an attaching member 101;

a front case 20 that is engaged with the rear case 10 and forms a first accommodation space with the rear case 10; a front positioning shell 201 is arranged on the front surface of the front shell 20, the lower part of the front positioning shell 201 is fixedly connected with the bottom of the front surface of the front shell 20 through a connecting structure 202, the front surface of the front shell 20 and the front positioning shell 201 form a U-shaped clamping groove 203, a second accommodating space is arranged in the front positioning shell 201, and the first accommodating space is communicated with the second accommodating space;

a display screen 30, wherein the display screen 30 is disposed in the second accommodating space of the front positioning shell 201 and is exposed through a display window 2011 disposed on the front positioning shell 201;

the prompting component 40 is arranged in the second accommodating space of the front positioning shell 201, and is exposed through a prompting window 2012 arranged on the front positioning shell 201;

the circuit board 50 is arranged in the first accommodating space, and is electrically connected with the display screen 30 and the prompting component 40 respectively;

a battery 60, the battery 60 being disposed in the first receiving space and electrically connected to the circuit board 50;

a solar cell panel 70 disposed in the first receiving space, exposed through an exposure window provided on a rear surface of the rear case 10, and electrically connected to the circuit board 50;

a clip member 80, said clip member 80 comprising a first clip portion 801 and a second clip portion 802, said first clip portion 801 and/or said second clip portion 802 being telescopically disposed on said front housing 20;

in an idle state, first grip 801 and/or second grip 802 contract on front case 20;

in an operating state, the first clamping portion 801 and/or the second clamping portion 802 extend, and the device to be clamped is clamped between the first clamping portion 801 and the second clamping portion 802.

In this embodiment, the on-board unit is not provided with a card slot or a card fixing box, and the user card can be clamped outside the on-board unit by using the clamping component 80, so that compared with the existing on-board unit, the volume of the on-board unit is reduced, and the safety of vehicle driving is improved. In addition, if the user card module is embedded in the circuit board 50 of the on-board unit, other cards can be clamped by the clamping component 80, so that the functions of the on-board unit are expanded, for example, an identity card can be clamped by the clamping component 80, and reading of the identity card is realized.

Specifically, the rear case 10 and the front case 20 in the embodiment of the present invention are substantially rectangular, but in practical applications, the specific shapes of the rear case 10 and the front case 20, such as an oval shape, may be designed according to practical situations, and the present embodiment is not particularly limited.

The rear housing 10 and the front housing 20 provided in the embodiment of the present invention may be engaged with each other through a snap structure or a screw and nut structure, and of course, may also be engaged with each other through other methods, which is not limited in the present invention.

The adhesive member 101 provided on the rear surface of the rear case 10 may be a double-sided tape for adhering and fixing the on-board unit at the window. The rear surface of the rear case 30 may be further provided with a protective plate of the solar cell panel 70, such as a transparent plastic plate, etc., may be provided at an exposure window provided on the rear surface of the rear case 10, and may be flush with the rear surface of the rear case 10 to protect the solar cell panel 70.

The solar panel 70 receives solar energy through the window to power the on-board unit, which may include direct power or battery charging. This is not particularly limited in the present invention.

The display screen 30 may be an LED or OLED display screen, and may be electrically connected to the circuit board 50 by a flexible circuit board, so that the information related to the reading and writing of the card by the vehicle-mounted unit can be displayed through the display screen 30. As an optional implementation manner of this embodiment, the on-board unit further includes a nameplate 120, and the nameplate 120 is fixed on the front surface of the front positioning shell 201 corresponding to the display window 2011. The display screen can be protected from being damaged by the arrangement of the nameplate 120.

The presentation component 40 may be used to present the operating status of the on-board unit. As an optional implementation manner of this embodiment, the prompting component 40 is a prompting lamp or a speaker. By arranging the prompting lamp, the state of the vehicle-mounted unit can be indicated through the states of the lamps with different colors, for example, the states of standby, in-transaction, low power and the like can be indicated; through setting up the speaker, can report the on-vehicle unit self state or report transaction information in real time.

The battery 60 may be a battery or a battery pack, and is charged by the solar cell panel 70.

The clamping member 80 provided in the embodiment of the present invention can be implemented in two ways:

mode one, as shown in fig. 4 to 5:

as an optional implementation manner of this embodiment, the first clamping portion 801 includes a first link 8011 and a first clamping claw 8012, the first clamping claw 8012 is disposed at a first end of the first link 8011, a first through hole 204 is disposed on a first sidewall of the front housing 20, a second end of the first link 8011 of the first clamping portion 801 is disposed in the first receiving space through the first through hole 204, and the second end of the first link 8011 of the first clamping portion 801 is connected to the first positioning structure 206 disposed in the first receiving space through a first elastic member 8013. The first clamping part 801 is pulled towards the direction away from the front shell, the first connecting rod 8011 pulls the first elastic component 8013 to stretch, the device to be clamped is placed between the first clamping claw and the second clamping claw, the first clamping claw is matched with the second clamping claw, and two sides of the device to be clamped are tightened under the thrust of the first elastic component 8013.

Alternatively, a first clip 801 is telescopically disposed on the front housing 20 and a second clip is secured to the front housing. The first clamping part 801 is pulled towards the direction away from the front shell, the first connecting rod 8011 pulls the first elastic component 8013 to stretch, the device to be clamped is placed between the first clamping claw and the second clamping claw, the first clamping claw is matched with the second clamping claw, and two sides of the device to be clamped are tightened under the thrust of the first elastic component 8013. The user can clamp the device to be clamped only by dragging the first clamping part 801, and the operation is simple.

As an optional implementation manner of this embodiment, the second clamping portion 802 includes a second link 8021 and a second clamping claw 8022, the second clamping claw 8022 is disposed at a first end portion of the second link 8021, a second through hole 205 is disposed on a second side wall of the front housing 20, the first side wall is disposed opposite to the second side wall, a second end portion of the second link 8021 of the second clamping portion 802 is disposed in the first accommodating space through the second through hole 205, and the second end portion of the second link 8021 of the second clamping portion 802 is connected to the second positioning structure 207 disposed in the first accommodating space through a first elastic member 8013. The second clamping part 801 is pulled towards the direction away from the front shell, the second connecting rod 8021 pulls the second elastic part 8023 to stretch, the device to be clamped is placed between the second clamping claw and the first clamping claw, the second clamping claw is matched with the first clamping claw, and two sides of the device to be clamped are clamped under the thrust of the first elastic part 8013.

Alternatively, a second clip portion 802 may be telescopically disposed on the front housing 20, with the first clip portion secured to the front housing. The second clamping portion 802 is pulled in a direction away from the front housing, the second connecting rod 8021 pulls the first elastic component 8013 to stretch, the device to be clamped is placed between the second clamping jaw and the first clamping jaw, the second clamping jaw is matched with the first clamping jaw, and two sides of the device to be clamped are tightened under the thrust of the first elastic component 8013. The user can clamp the device to be clamped only by dragging the second clamping part 801, and the operation is simple.

Optionally, the first clamping portion 801 and the second clamping portion 802 are both telescopically disposed on the front housing 20. Meanwhile, the first clamping portion 801 and the second clamping portion 802 are pulled towards a direction away from the front shell, the first connecting rod 8011 pulls the first elastic component 8013 to stretch, the second connecting rod 8021 pulls the first elastic component 8013 to stretch, a device to be clamped is placed between the first clamping claw and the second clamping claw, the first clamping claw is matched with the second clamping claw, and two sides of the device to be clamped are clamped under the pushing force of the first elastic component 8013 and the second elastic component 8023. The user drags the first clamping portion 801 and the second clamping portion 801 simultaneously to achieve the operation of clamping the device to be clamped, the stretching range is larger, and the larger device to be clamped can be clamped.

Mode two, as shown in fig. 6 to 7:

as an optional embodiment of this embodiment, the first clamping portion 801 includes a first rod 8011 and a first clamping claw 8012, the first clamping claw 8012 is disposed at a first end of the first rod 8011, a first through hole 204 is disposed on a first sidewall of the front housing 20, a second end of the first rod 8011 of the first clamping portion 801 is disposed in the first receiving space through the first through hole 204, a second end of the first rod 8011 of the first clamping portion 801 is fixedly connected to one side of the shift element 8014, a spring 8015 is sleeved on the first rod 8011 and is located between the shift element 8014 and an inner wall of the first sidewall of the front housing 20, another side of the shift element 8014 is connected to the rack 8016, and the rack 8016 is connected to the gear 803 at a tangent line of the gear 803; second holder 802 includes second link 8021 and second gripper jaw 8022, and second gripper jaw 8022 sets up first end of second link 8021, be provided with sawtooth 8024 on the second link 8021, set up second through-hole 205 on the second lateral wall of procapsid 20, first lateral wall with the second lateral wall sets up relatively, the second end of second link 8021 of second holder 802 passes second through-hole 205 sets up in first accommodation space, with gear 803 toothing on the other tangent line that is relative with a tangent line of gear 803.

In the present alternative embodiment, when the first and

second clamping portions

801 and 802 are respectively pulled in the direction away from the front housing, the spring 8015 is compressed between the position member 8014 and the inner wall of the first side wall of the front housing 20, and is clamped by the urging force of the spring 8015 when the member to be clamped is clamped between the first and

second clamping portions

801 and 802; when the member to be gripped is taken out, the spring 8015 returns from the compressed state to the relaxed state, and the first and second

gripping portions

801 and 802 return to the state contracted on the front housing 20 by pulling the first and second gripping portions to move in the direction approaching the front housing through the rack 8016 and the gear 803, respectively. Alternatively, the length of spring 8015 is less than or equal to the distance between shift position member 8012 and the inner wall of the first side wall of front housing 20 when first clamping portion 801 is retracted on front housing 20 without being subjected to an external force. In this optional embodiment, the device to be clamped is clamped by the first clamping portion 801 and the second clamping portion 802, so that the clamping device is safer, more reliable and more convenient to use.

As an optional embodiment of this embodiment, the on-board unit further includes a key 80 disposed in the first accommodation space and exposed through a key window 208 provided on a front surface of the front case 20 and electrically connected to the circuit board 50. With this alternative embodiment, the user can operate the on-board unit through the key 80, for example, when the id card is clamped by the clamping member 80, the user can trigger the key 80 to operate by using the id card, so as to change the operating mode of the on-board unit to the reading id card mode.

As an optional implementation manner of this embodiment, the on-board unit further includes a communication interface 90, and the communication interface 90 is disposed in the first receiving space, exposed through a communication window 209 disposed on a side wall of the front case 20, and electrically connected to the circuit board 50. With this alternative embodiment, the communication between the on-board unit and the external device can be accomplished through the communication interface 90, for example, the functions of the on-board unit are more enhanced by completing operations such as firmware upgrade through the communication interface.

As an optional implementation manner of this embodiment, the communication interface 90 is a USB interface. In this alternative embodiment, the communication between the on-board unit and the external device may be completed through the USB interface, for example, the operation such as firmware upgrade may be completed through the USB interface, which may make the operation simpler.

As an optional implementation of this embodiment, the on-board unit further includes, an antenna coil 100; a step 103 is provided at a portion where the rear case 10 is engaged with the front case 20, a groove 104 surrounding a circumference is formed after the rear case 10 is engaged with the front case 20, and the antenna coil 100 is wound around the groove 104 and electrically connected to the circuit board 50 through a wiring hole provided in the rear case 10. With the antenna coil 100 provided in this alternative embodiment, the on-board unit can perform operations such as communication and power supply by the antenna coil 100, and when another card is held between the first holding portion 801 and the second holding portion 802 as a device to be held, the antenna coil 100 can communicate with the outside as a communication coil of the card.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An on-board unit, comprising:

a rear case (10), wherein an adhesive member (101) is provided on the rear surface of the rear case (10);

a front case (20), wherein the front case (20) is clamped with the rear case (10) and forms a first accommodating space with the rear case (10); a front positioning shell (201) is arranged on the front surface of the front shell (20), the lower part of the front positioning shell (201) is fixedly connected with the bottom of the front surface of the front shell (20) through a connecting structure (202), the front surface of the front shell (20) and the front positioning shell (201) form a U-shaped clamping groove (203), a second accommodating space is formed inside the front positioning shell (201), and the first accommodating space is communicated with the second accommodating space;

a display screen (30), wherein the display screen (30) is arranged in the second accommodating space of the front positioning shell (201) and is exposed through a display window (2011) arranged on the front positioning shell (201);

the prompting component (40) is arranged in the second accommodating space of the front positioning shell (201) and is exposed through a prompting window (2012) arranged on the front positioning shell (201);

the circuit board (50) is arranged in the first accommodating space, and is respectively and electrically connected with the display screen (30) and the prompting component (40);

a battery (60), wherein the battery (60) is arranged in the first accommodating space and is electrically connected with the circuit board (50);

a solar cell panel (70), the solar cell panel (70) being disposed in the first receiving space, exposed through an exposure window provided on a rear surface of the rear case (10), and electrically connected to the circuit board (50);

a clip member (80), said clip member (80) comprising a first clip portion (801) and a second clip portion (802), said first clip portion (801) and/or said second clip portion (802) being telescopically arranged on said front housing (20);

-in an idle state, said first grip portion (801) and/or said second grip portion (802) are contracted on said front case (20);

in the working state, the first clamping part (801) and/or the second clamping part (802) extend, and the device to be clamped is clamped between the first clamping part (801) and the second clamping part (802).

2. On-board unit according to claim 1,

the first clamping portion (801) comprises a first connecting rod (8011) and a first clamping claw (8012), the first clamping claw (8012) is arranged at a first end of the first connecting rod (8011), a first through hole (204) is formed in a first side wall of the front housing (20), a second end of the first connecting rod (8011) of the first clamping portion (801) penetrates through the first through hole (204) to be arranged in the first accommodating space, and a second end of the first connecting rod (8011) of the first clamping portion (801) is connected with a first positioning structure (206) arranged in the first accommodating space through a first elastic component (8013).

3. On-board unit according to claim 1 or 2,

second holder (802) includes second connecting rod (8021) and second gripper jaw (8022), and second gripper jaw (8022) set up the first end of second connecting rod (8021), set up second through-hole (205) on the second lateral wall of procapsid (20), first lateral wall with the second lateral wall sets up relatively, the second end of second connecting rod (8021) of second holder (802) passes second through-hole (205) set up in the first accommodation space, the second holder (802) the second end of second connecting rod (8021) pass through second elastic component (8023) with set up and be in second location structure (207) are connected in the first accommodation space.

4. On-board unit according to claim 1,

the first clamping part (801) comprises a first connecting rod (8011) and a first clamping claw (8012), the first clamping claw (8012) is arranged at a first end part of the first connecting rod (8011), a first through hole (204) is provided on a first sidewall of the front case (20), a second end of the first link (8011) of the first clamping part (801) is disposed in the first accommodation space through the first through hole (204), the second end part of the first connecting rod (8011) of the first clamping part (801) is fixedly connected with one side of the gear component (8014), the spring (8015) is sleeved on the first connecting rod (8011), and is located between the shift element (8014) and an inner wall of the first side wall of the front housing (20), the other side of the gear component (8014) is connected with a rack (8016), and the rack (8016) is in toothed connection with the gear (803) on a tangent line of the gear (803);

second holder (802) includes second connecting rod (8021) and second gripper jaw (8022), and second gripper jaw (8022) set up the first end of second connecting rod (8021), be provided with sawtooth (8024) on second connecting rod (8021), set up second through-hole (205) on the second lateral wall of procapsid (20), first lateral wall with the second lateral wall sets up relatively, the second end of second connecting rod (8021) of second holder (802) passes second through-hole (205) set up in first accommodation space, with on the other tangent line that is relative with a tangent line of gear (803) with gear (803) toothing.

5. The on-board unit according to claim 1, characterized by further comprising:

and a key (90) disposed in the first receiving space and exposed through a key window provided on a front surface of the front case (20) and electrically connected to the circuit board (50).

6. The on-board unit according to claim 1, characterized by further comprising: an antenna coil (100);

the antenna coil is characterized in that a step (103) is arranged at the part where the rear shell (10) is clamped with the front shell (20), a groove (104) surrounding a circle is formed after the rear shell (10) is clamped with the front shell (20), and the antenna coil (100) is wound at the position of the groove (104) and is electrically connected with the circuit board (50) through a wiring hole formed in the rear shell (10).

7. The on-board unit according to claim 1, characterized by further comprising:

a communication interface (110), wherein the communication interface (110) is arranged in the first accommodating space, is exposed through a communication window arranged on the side wall of the front shell (20), and is electrically connected with the circuit board (50).

8. On-board unit according to claim 7, characterized in that said communication interface (110) is a USB interface.

9. On-board unit according to claim 1, characterized in that the prompting means (40) is a prompting light or a loudspeaker.

10. The on-board unit according to claim 1, characterized by further comprising:

a name plate (120), the name plate (120) being fixed on a front surface of the front positioning housing (201) corresponding to the display window (2011).