Vehicle-mounted navigator installation fool-proof device and vehicle-mounted navigator

Abstract

The utility model provides a vehicle-mounted navigator installation fool-proof device and a vehicle-mounted navigator. The vehicle-mounted navigation installation fool-proof device comprises a navigation front screen and a navigation installation fool-proof assembly. The navigation installation fool-proof assembly comprises a navigation installation rear cover and a rear cover fool-proof convex rib, the navigation installation rear cover is provided with at least two digital display installation through holes and at least two touch control installation through holes, the rear cover fool-proof convex rib comprises a digital display fool-proof convex strip and a touch control fool-proof convex strip, the digital display fool-proof convex strip is arranged adjacent to the digital display installation through holes, and the touch control fool-proof convex strip is arranged adjacent to the touch control fool-proof convex strip. The touch fool-proof raised line is arranged adjacent to the touch mounting through hole, and the length of the digital display fool-proof raised line is greater than that of the touch fool-proof raised line. Through the length distribution condition of the digital display fool-proof raised lines and the touch fool-proof raised lines and in combination with the positions of the corresponding through holes, the installation and placement postures of the rear cover fool-proof raised lines are kept right opposite, so that the alignment between the through holes and the terminals is more accurate during installation, and the assembly efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicle navigation, in particular to a vehicle navigation installation foolproof device and a vehicle navigation. BACKGROUND

[0002] In recent years, China's automobile industry has developed rapidly, with an extremely fast growth rate that has led the world. With the construction of roads, economic exchanges between cities are more frequent, and vehicle navigation is very important. Navigation devices that accurately locate, navigate, and entertain in one body can better meet the needs of car owners and become a basic equipment on the car.

[0003] In the automotive audio and navigation after-market, the vehicle audio and navigation devices on the market currently all adopt an integrated structure, with the main unit (including the casing) and the mounting plate and display screen being installed and sold as a whole. For example, Chinese patent applications CN202110818141.4, CN201810474823.6, and CN200820056898.4. However, traditional navigation devices install the screen and control module on the casing, for example, by screwing or gluing, and the back of the casing serves as the wiring end face. During installation, the casing often appears to be installed in reverse, which requires the device to be returned and disassembled during testing, affecting assembly efficiency and increasing the production cost of the navigation device. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a vehicle navigation installation foolproof device and a vehicle navigation that effectively improve assembly efficiency.

[0005] The purpose of the present disclosure is achieved by the following technical solutions:

[0006] The navigation installation foolproof device comprises a navigation front screen and a navigation installation foolproof assembly; the navigation front screen is used for displaying and controlling navigation information; the navigation installation foolproof assembly comprises a navigation installation back cover and a back cover foolproof convex rib; the navigation installation back cover is connected with the navigation front screen; the navigation installation back cover is provided with at least two digital display installation through holes and at least two touch control installation through holes; the back cover foolproof convex rib is connected with one side of the navigation installation back cover away from the navigation front screen; at least two digital display installation through holes are arranged on one side of the back cover foolproof convex rib and used for penetrating digital display communication terminals; at least two touch control installation through holes are arranged on the other side of the back cover foolproof convex rib and used for penetrating touch control communication terminals; the back cover foolproof convex rib comprises a digital display foolproof convex strip and a touch control foolproof convex strip; the digital display foolproof convex strip is arranged adjacent to the digital display installation through hole; the touch control foolproof convex strip is arranged adjacent to the touch control installation through hole; and the length of the digital display foolproof convex strip is greater than that of the touch control foolproof convex strip.

[0007] In one of the embodiments, the digital display installation through hole is arranged opposite to the touch control installation through hole.

[0008] In one of the embodiments, the distance between the digital display installation through hole and the back cover foolproof convex rib is greater than the distance between the touch control installation through hole and the back cover foolproof convex rib.

[0009] In one of the embodiments, the distance between two adjacent digital display installation through holes is greater than the distance between two adjacent touch control installation through holes.

[0010] In one of the embodiments, a first foolproof groove is formed between the digital display foolproof convex strip and the touch control foolproof convex strip, and the groove opening of the first foolproof groove faces the digital display installation through hole.

[0011] In one of the embodiments, a second foolproof groove is formed between the digital display foolproof convex strip and the touch control foolproof convex strip, and the groove opening of the second foolproof groove is away from the digital display installation through hole and the touch control installation through hole.

[0012] In one of the embodiments, the digital display foolproof convex strip is provided with a third foolproof groove, and the groove opening of the third foolproof groove is away from the digital display installation through hole.

[0013] In one of the embodiments, the length ratio of the digital display foolproof convex strip to the touch control foolproof convex strip is 1.5 to 2.8.

[0014] In one of the embodiments, the length ratio of the digital display foolproof convex strip to the touch control foolproof convex strip is 2.

[0015] The vehicle-mounted navigation device comprises the vehicle-mounted navigation installation foolproof device according to any one of the above embodiments.

[0016] Compared with the prior art, this disclosure has at least the following advantages:

[0017] When installing the navigation mounting back cover onto the navigation front screen, the distribution of the digital display mounting through holes and the touch mounting through holes relative to the anti-foolproof ribs on the back cover facilitates the alignment of each through hole with its corresponding terminal. Furthermore, by considering the length distribution of the digital display anti-foolproof ribs and the touch anti-foolproof ribs, combined with the position of the corresponding through holes, the installation orientation of the anti-foolproof ribs on the back cover is kept upright. This ensures more precise alignment between each through hole and terminal during installation, preventing reverse installation and achieving one-time alignment assembly, effectively improving assembly efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a foolproof device installed in a vehicle navigation system in one embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram from another perspective showing the installation of a foolproof device in a vehicle navigation system;

[0021] Figure 3 for Figure 2 An enlarged schematic diagram of the foolproof device installed on the vehicle navigation system at point A1;

[0022] Figure 4 for Figure 2 The diagram shows an enlarged view of the foolproof device installed on the vehicle navigation system at point A2. Detailed Implementation

[0023] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0024] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only and are not intended to limit the embodiments.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] The present disclosure relates to a car navigation installation fool-proof device. In one embodiment, the car navigation installation fool-proof device comprises a navigation front panel and a navigation installation fool-proof assembly; the navigation front panel is used for displaying and controlling navigation information; the navigation installation fool-proof assembly comprises a navigation installation back cover and a back cover fool-proof protrusion, the navigation installation back cover is connected with the navigation front panel, the navigation installation back cover is provided with at least two digital display installation through holes and at least two touch control installation through holes, the back cover fool-proof protrusion is connected with one side of the navigation installation back cover away from the navigation front panel, at least two digital display installation through holes are arranged on one side of the back cover fool-proof protrusion, the digital display installation through holes are used for penetrating digital display communication terminals, at least two touch control installation through holes are arranged on the other side of the back cover fool-proof protrusion, the touch control installation through holes are used for penetrating touch control communication terminals; wherein the back cover fool-proof protrusion comprises a digital display fool-proof protrusion strip and a touch control fool-proof protrusion strip, the digital display fool-proof protrusion strip is arranged adjacent to the digital display installation through holes, the touch control fool-proof protrusion strip is arranged adjacent to the touch control installation through holes, the length of the digital display fool-proof protrusion strip is greater than the length of the touch control fool-proof protrusion strip. When the navigation installation back cover is installed on the navigation front panel, according to the distribution positions of the digital display installation through holes and the touch control installation through holes relative to the back cover fool-proof protrusion, the through holes are conveniently butted to the corresponding terminals, and by combining the length distribution of the digital display fool-proof protrusion strip and the touch control fool-proof protrusion strip with the positions of the corresponding through holes, the installation and placement posture of the back cover fool-proof protrusion is kept facing, so that the alignment between the through holes and the terminals during installation is more accurate, the situation of installation in reverse is avoided, one-time alignment assembly is realized, and the assembly efficiency is effectively improved.

[0027] Please refer to Figure 1 which is a structural schematic diagram of the car navigation installation fool-proof device according to an embodiment of the present disclosure.

[0028] The navigation installation fool-proof device 10 of an embodiment comprises a navigation front screen 100 and a navigation installation fool-proof assembly 200. The navigation front screen 100 is used for displaying and controlling navigation information. Please refer to Figure 2 The navigation installation fool-proof assembly 200 comprises a navigation installation back cover 210 and a back cover fool-proof convex rib 220. The navigation installation back cover 210 is connected with the navigation front screen 100. The navigation installation back cover 210 is provided with at least two digital display installation through holes 202 and at least two touch control installation through holes 204. The back cover fool-proof convex rib 220 is connected with the side of the navigation installation back cover 210 which is away from the navigation front screen 100. At least two digital display installation through holes 202 are arranged on one side of the back cover fool-proof convex rib 220. The digital display installation through holes 202 are used for penetrating digital display communication terminals. At least two touch control installation through holes 204 are arranged on the other side of the back cover fool-proof convex rib 220. The touch control installation through holes 204 are used for penetrating touch control communication terminals. The back cover fool-proof convex rib 220 comprises a digital display fool-proof convex strip 222 and a touch control fool-proof convex strip 224. The digital display fool-proof convex strip 222 is arranged adjacent to the digital display installation through holes 202. The touch control fool-proof convex strip 224 is arranged adjacent to the touch control installation through holes 204. The length of the digital display fool-proof convex strip 222 is greater than the length of the touch control fool-proof convex strip 224.

[0029] In this embodiment, when the navigation installation back cover 210 is installed on the navigation front screen 100, according to the distribution positions of the digital display installation through holes 202 and the touch control installation through holes 204 relative to the back cover fool-proof convex rib 220, the through holes are conveniently butted to the corresponding terminals. Moreover, by combining the length distribution of the digital display fool-proof convex strip 222 and the touch control fool-proof convex strip 224 with the positions of the corresponding through holes, the installation and placement posture of the back cover fool-proof convex rib 220 is kept facing directly, so that the alignment between the through holes and the terminals is more accurate during installation, and the situation of installation in reverse is avoided. Thus, one-time alignment assembly is realized, and the assembly efficiency is effectively improved.

[0030] According to the different lengths of the digital display fool-proof convex strip 222 and the touch control fool-proof convex strip 224, for example, the length ratio of the digital display fool-proof convex strip 222 to the touch control fool-proof convex strip 224 is 1.5 to 2.8; or for another example, the length ratio of the digital display fool-proof convex strip 222 to the touch control fool-proof convex strip 224 is 2. This is convenient for determining the installation directions of the digital display installation through holes 202 and the touch control installation through holes 204, and thus the installation posture and direction of the navigation installation back cover 210 are determined. This makes the alignment assembly of the navigation installation back cover 210 and the navigation front screen 100 more accurate, so that during assembly, the digital display communication terminals are accurately embedded into the digital display installation through holes 202, and the touch control communication terminals are accurately embedded into the touch control installation through holes 204. Thus, the situation of installation in reverse is avoided, and re-assembly is avoided, so that the assembly efficiency is improved.

[0031] In one embodiment, referring to Figure 2 , the digital display mounting through hole 202 is arranged opposite to the touch mounting through hole 204. In this embodiment, the digital display mounting through hole 202 is located at one side of the rear cover fool-proof protrusion 220, and the touch mounting through hole 204 is located at the other side of the rear cover fool-proof protrusion 220. The digital display mounting through hole 202 serves as a mounting hole for a digital display communication terminal, and the touch mounting through hole 204 serves as a mounting hole for a touch communication terminal, so as to facilitate the division of the two screens of the digital display and the touch on the navigation front screen 100, thereby facilitating the alignment of the navigation mounting rear cover 210 to the navigation front screen 100. The digital display mounting through hole 202 and the touch mounting through hole 204 are distributed with the rear cover fool-proof protrusion 220 as the axis of symmetry, that is, the rear cover fool-proof protrusion 220 corresponds to the boundary position of the two screens of the digital display and the touch of the navigation front screen 100, so as to facilitate the alignment of the touch mounting through hole 204 to the touch communication terminal and the alignment of the digital display mounting through hole 202 to the digital display communication terminal.

[0032] In one embodiment, referring to Figure 2 , the distance between the digital display mounting through hole 202 and the rear cover fool-proof protrusion 220 is greater than the distance between the touch mounting through hole 204 and the rear cover fool-proof protrusion 220. In this embodiment, the digital display mounting through hole 202 and the touch mounting through hole 204 are located at both sides of the rear cover fool-proof protrusion 220. The digital display mounting through hole 202 corresponds to the digital display screen of the navigation front screen 100, and the touch mounting through hole 204 corresponds to the touch screen of the navigation front screen 100. When the navigation mounting rear cover 210 is installed, the positions of the digital display mounting through hole 202 and the touch mounting through hole 204 relative to the navigation front screen 100 determine the installation alignment. The distance between the digital display mounting through hole 202 and the rear cover fool-proof protrusion 220 is different from the distance between the touch mounting through hole 204 and the rear cover fool-proof protrusion 220, that is, the distances between the digital display mounting through hole 202 and the touch mounting through hole 204 and the rear cover fool-proof protrusion 220 are different. According to the above distance difference, the positions of the digital display mounting through hole 202 and the touch mounting through hole 204 can be determined, so as to facilitate the alignment of the digital display mounting through hole 202 and the touch mounting through hole 204 with the corresponding communication terminals, avoid the installation misalignment between the through holes and the terminals, and improve the fool-proof assembly effect between the navigation mounting rear cover 210 and the navigation front screen 100.

[0033] In one embodiment, referring to Figure 2The interval between two adjacent digital display mounting through holes 202 is greater than the interval between two adjacent touch mounting through holes 204. In the embodiment, the plurality of digital display mounting through holes 202 are located on one side of the rear cover fool-proof protrusion 220, and the plurality of touch mounting through holes 204 are located on the other side of the rear cover fool-proof protrusion 220. Specifically, the plurality of digital display mounting through holes 202 are arranged adjacent to the digital display fool-proof protruding strip 222, and the plurality of touch mounting through holes 204 are arranged adjacent to the touch fool-proof protruding strip 224. The interval between two adjacent digital display mounting through holes 202 is different from the interval between two adjacent touch mounting through holes 204. The interval between the plurality of digital display mounting through holes 202 is greater, and the interval between the plurality of touch mounting through holes 204 is smaller, so that the intervals of the through holes on both sides of the rear cover fool-proof protrusion 220 are different, thereby determining the corresponding positions of the two side regions of the navigation mounting rear cover 210, and further improving the alignment between the navigation mounting rear cover 210 and the navigation front screen 100, and further improving the fool-proof assembly effect between the navigation mounting rear cover 210 and the navigation front screen 100.

[0034] In one of the embodiments, referring to Figure 2 The first fool-proof groove 206 is formed between the digital display fool-proof protruding strip 222 and the touch fool-proof protruding strip 224, and the opening of the first fool-proof groove 206 faces the digital display mounting through hole 202. In the embodiment, the first fool-proof groove 206 is located at the connection between the digital display fool-proof protruding strip 222 and the touch fool-proof protruding strip 224. Specifically, the side walls of the first fool-proof groove 206 are the side edges of the digital display fool-proof protruding strip 222 and the touch fool-proof protruding strip 224, respectively. By adjusting the positions of the digital display fool-proof protruding strip 222 and the touch fool-proof protruding strip 224, the step structure is formed at the connection between the digital display fool-proof protruding strip 222 and the touch fool-proof protruding strip 224, thereby facilitating the formation of the first fool-proof groove 206. The first fool-proof groove 206 corresponds to the digital display mounting through hole 202, so that the first fool-proof groove 206 and the digital display mounting through hole 202 form a relative position corresponding relationship, thereby facilitating the determination of the mounting direction of the digital display mounting through hole 202 according to the position of the first fool-proof groove 206, and thereby facilitating the determination of the mounting direction of the navigation mounting rear cover 210, so as to improve the assembly accuracy.

[0035] In one of the embodiments, referring to Figure 2, the second foolproof groove 208 is formed between the digital display foolproof convex strip 222 and the touch control foolproof convex strip 224, and the opening of the second foolproof groove 208 is away from the digital display mounting through hole 202 and the touch control mounting through hole 204. In the embodiment, the second foolproof groove 208 is located at the connection of the digital display foolproof convex strip 222 and the touch control foolproof convex strip 224, and specifically, the side walls of the second foolproof groove 208 are the side edges of the digital display foolproof convex strip 222 and the touch control foolproof convex strip 224 respectively. By adjusting the positions of the digital display foolproof convex strip 222 and the touch control foolproof convex strip 224, the digital display foolproof convex strip 222 and the touch control foolproof convex strip 224 form a stepped structure at the connection, which facilitates the formation of the second foolproof groove 208. The second foolproof groove 208 is oppositely arranged with the first foolproof groove 206, for example, the opening of the second foolproof groove 208 is opposite to the opening of the first foolproof groove 206, and the opening of the second foolproof groove 208 is away from the digital display mounting through hole 202 and the touch control mounting through hole 204 at the same time, so that the relative positions of the second foolproof groove 208, the digital display mounting through hole 202 and the touch control mounting through hole 204 are fixed, thereby facilitating the determination of the installation posture and direction of the navigation installation back cover 210 according to the relative positional relationship among the first foolproof groove 206, the second foolproof groove 208, the digital display mounting through hole 202 and the touch control mounting through hole 204 during installation, so as to further improve the assembly accuracy.

[0036] In one of the embodiments, referring to Figure 3 , the digital display foolproof convex strip 222 is provided with a third foolproof groove 201, and the opening of the third foolproof groove 201 is arranged away from the digital display mounting through hole 202. In the embodiment, the third foolproof groove 201 is located on the digital display foolproof convex strip 222, that is, the third foolproof groove 201 is used to correspond to the digital display screen of the navigation front screen 100, and the third foolproof groove 201 is located on the side of the digital display foolproof convex strip 222 away from the digital display mounting through hole 202, so that the relative positions between the third foolproof groove 201 and the digital display mounting through hole 202 are fixed, and by determining the position of the third foolproof groove 201, the installation direction of the navigation installation back cover 210 can be limited, so as to avoid the navigation installation back cover 210 being installed upside down. Moreover, the third foolproof groove 201 can further determine the installation posture and direction of the navigation installation back cover 210 in combination with the positions of the first foolproof groove 206 and the second foolproof groove 208, so as to further improve the assembly accuracy.

[0037] In the actual assembly process of the navigation installation back cover 210, through the alignment of the digital display installation through hole 202 and the digital display communication terminal, and through the alignment of the touch installation through hole 204 and the touch communication terminal, the navigation installation back cover 210 can be correctly installed on the back of the navigation front screen 100. However, when the navigation installation back cover 210 is buckled on the back of the navigation front screen 100, since the touch area and the digital display area of the navigation front screen 100 are located on a straight line, that is, the digital display installation through hole 202 and the touch installation through hole 204 are located on the same row height of the navigation installation back cover 210, that is, the positions of the digital display installation through hole 202 and the touch installation through hole 204 in the horizontal direction remain consistent, at this time, the navigation installation back cover 210 is prone to up-down deviation, that is, in the direction perpendicular to the straight line where the digital display installation through hole 202 and the touch installation through hole 204 are located, the digital display installation through hole 202 is prone to excessive extrusion of the single side of the digital display communication terminal, and the touch installation through hole 204 is prone to excessive extrusion of the single side of the touch communication terminal, thereby affecting the normal use of each terminal.

[0038] In order to avoid the single-sided extrusion of the navigation installation back cover 210 and each terminal during installation, please refer to Figure 4 The navigation installation back cover 210 includes a back cover body 212 and a plurality of longitudinal positioning members 214, the back cover body 212 is buckled on the back of the navigation front screen 100, the navigation front screen 100 is provided with a plurality of longitudinal positioning grooves 102, each longitudinal positioning member 214 is inserted into a longitudinal positioning groove 102, the longitudinal positioning member 214 includes a longitudinal extension plate 2142 and a positioning embedded plate 2144, the longitudinal extension plate 2142 is connected with the back cover body 212 and the positioning embedded plate 2144 respectively, the positioning embedded plate 2144 is located on the side of the longitudinal extension plate 2142 close to the navigation front screen 100, the positioning embedded plate 2144 is embedded in the longitudinal positioning groove 102, the positioning embedded plate 2144 abuts with the bottom of the longitudinal positioning groove 102, and the positioning embedded plate 2144 is also provided with a positioning bolt hole 203, the positioning bolt hole 203 is used for inserting a positioning bolt connected with the navigation front screen 100.

[0039] In the embodiment, the longitudinal positioning members 214 are located at the edges of the rear cover body 212, specifically, the longitudinal positioning members 214 are located at the upper and lower sides of the rear cover body 212, so that the plurality of longitudinal positioning members 214 are distributed vertically to the straight line on which the digital display installation through hole 202 and the touch control installation through hole 204 are located. The longitudinal extension plate 2142 of the longitudinal positioning member 214 serves as a connecting plate between the positioning embedded plate 2144 and the rear cover body 212, facilitating the extension of the positioning embedded plate 2144 out of the edge of the rear cover body 212, so that the positioning embedded plate 2144 can be identified during installation. Moreover, the positioning embedded plate 2144 corresponds to the longitudinal positioning groove 102 one by one, and the positioning embedded plate 2144 is connected to one side of the longitudinal extension plate 2142 close to the longitudinal positioning groove 102, so that the positioning embedded plate 2144 is arranged towards the opening of the longitudinal positioning groove 102. The positioning embedded plate 2144 and the longitudinal extension plate 2142 are arranged in a stacked manner, so that the longitudinal positioning member 214 presents a stepped structure, so that the positioning embedded plate 2144 protrudes towards the longitudinal positioning groove 102, facilitating the embedding of the positioning embedded plate 2144 on the side of the navigation front screen 100. Since the longitudinal positioning groove 102 corresponds to the longitudinal positioning member 214, the plurality of longitudinal positioning grooves 102 form a positioning distribution in the longitudinal direction, according to the alignment of the longitudinal positioning groove 102 and the positioning embedded plate 2144, precise installation positioning in the longitudinal direction is facilitated, avoiding the over-pressing of the digital display installation through hole 202 and the touch control installation through hole 204 and the corresponding terminals on one side during installation.

[0040] In another embodiment, the slot caliber of the longitudinal positioning groove 102 is greater than the diameter of the positioning embedded plate 2144, so that the positioning embedded plate 2144 can be adjusted in the longitudinal positioning groove 102, thereby avoiding the over-pressing of the digital display installation through hole 202 and the touch control installation through hole 204 and the corresponding terminals on one side during installation.

[0041] Further, referring to ​ , the vehicle-mounted navigation installation fool-proof device 10 further comprises a longitudinal positioning column 300, the longitudinal positioning column 300 is connected to the back of the navigation front screen 100, the rear cover body 212 is provided with a longitudinal positioning hole 205, the longitudinal positioning column 300 is arranged in the longitudinal positioning hole 205, and the longitudinal positioning hole 205 is located between two longitudinal positioning grooves 102.

[0042] In the embodiment, the longitudinal positioning column 300 is located at the back side of the navigation front screen 100, and specifically, the longitudinal positioning column 300 is located at the same side of the navigation front screen 100 as the longitudinal positioning groove 102. The longitudinal positioning column 300 is located between two longitudinal positioning grooves 102, so that the longitudinal positioning column 300 is located on the distribution straight line of the longitudinal positioning grooves 102, and the longitudinal positioning column 300 protrudes from the navigation front screen 100, that is, the longitudinal positioning column 300 and the longitudinal positioning groove 102 form a concave-convex positioning structure on the side of the navigation front screen 100, which facilitates the alignment of the upper and lower sides of the navigation front screen 100 and the navigation rear cover 210. The longitudinal positioning hole 205 is located on the rear cover body 212, and specifically, the longitudinal positioning hole 205 is located on the upper and lower sides of the navigation rear cover 210. When the navigation rear cover 210 is installed, the relative position of the longitudinal positioning column 300 between the two longitudinal positioning grooves 102 facilitates the alignment of the upper and lower sides of the navigation front screen 100 and the navigation rear cover 210, so as to further avoid the case that the digital display installation through hole 202 and the touch control installation through hole 204 are excessively pressed on one side during installation.

[0043] In another embodiment, the longitudinal positioning column 300 is provided with an extrusion buffer release groove 302, and the slot of the extrusion buffer release groove 302 faces the outside of the navigation front screen 100. In the embodiment, the longitudinal positioning column 300 is a deformable positioning column, for example, the material of the longitudinal positioning column 300 is silica gel. By additionally providing the extrusion buffer release groove 302 on the longitudinal positioning column 300, the longitudinal positioning column 300 has a hollow structure, so that the internal buffer space of the longitudinal positioning column 300 is increased. In this way, when the navigation rear cover 210 is installed on the navigation front screen 100, the longitudinal positioning column 300 not only extrudes to provide sufficient installation space after being extruded, but also releases part of the extrusion force after installation is completed, so that the resistance between the longitudinal positioning column 300 and the navigation rear cover 210 is increased, thereby improving the installation stability of the navigation rear cover 210.

[0044] In one of the embodiments, the present disclosure also relates to a car navigation device, comprising the car navigation installation fool-proof device of any of the above embodiments. In this embodiment, the car navigation installation fool-proof device comprises a navigation front screen and a navigation installation fool-proof assembly; the navigation front screen is used for displaying and controlling navigation information; the navigation installation fool-proof assembly comprises a navigation installation back cover and a back cover fool-proof protrusion, the navigation installation back cover is connected with the navigation front screen, the navigation installation back cover is provided with at least two digital display installation through holes and at least two touch control installation through holes, the back cover fool-proof protrusion is connected with one side of the navigation installation back cover away from the navigation front screen, at least two digital display installation through holes are arranged on one side of the back cover fool-proof protrusion, the digital display installation through holes are used for penetrating digital display communication terminals, at least two touch control installation through holes are arranged on the other side of the back cover fool-proof protrusion, the touch control installation through holes are used for penetrating touch control communication terminals; wherein the back cover fool-proof protrusion comprises a digital display fool-proof protrusion and a touch control fool-proof protrusion, the digital display fool-proof protrusion is arranged adjacent to the digital display installation through hole, the touch control fool-proof protrusion is arranged adjacent to the touch control installation through hole, and the length of the digital display fool-proof protrusion is greater than the length of the touch control fool-proof protrusion. When the navigation installation back cover is installed on the navigation front screen, according to the distribution positions of the digital display installation through hole and the touch control installation through hole relative to the back cover fool-proof protrusion, the through holes can be conveniently butted to the corresponding terminals, and by combining the length distribution of the digital display fool-proof protrusion and the touch control fool-proof protrusion with the positions of the corresponding through holes, the installation and placement posture of the back cover fool-proof protrusion is kept facing, so that the alignment between the through holes and the terminals during installation is more accurate, the situation of installation in reverse is avoided, one-time alignment assembly is realized, and the assembly efficiency is effectively improved.

[0045] The above embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A foolproof device for installing vehicle navigation systems, characterized in that, The navigation front screen is used for displaying and controlling navigation information. The navigation installation fool-proof assembly includes a navigation installation back cover and a back cover fool-proof protrusion, the navigation installation back cover is connected with the navigation front screen, the navigation installation back cover is provided with at least two digital display installation through holes and at least two touch control installation through holes, the back cover fool-proof protrusion is connected with one side of the navigation installation back cover away from the navigation front screen, at least two digital display installation through holes are arranged on one side of the back cover fool-proof protrusion, the digital display installation through holes are used for penetrating digital display communication terminals, at least two touch control installation through holes are arranged on the other side of the back cover fool-proof protrusion, and the touch control installation through holes are used for penetrating touch control communication terminals; wherein the back cover fool-proof protrusion includes a digital display fool-proof protrusion and a touch control fool-proof protrusion, the digital display fool-proof protrusion is arranged adjacent to the digital display installation through hole, the touch control fool-proof protrusion is arranged adjacent to the touch control installation through hole, and the length of the digital display fool-proof protrusion is greater than that of the touch control fool-proof protrusion. The digital display installation through hole and the touch control installation through hole are arranged oppositely.

2. The navigation system mounting fool-proof device according to claim 1, wherein The distance between the digital display installation through hole and the back cover fool-proof protrusion is greater than the distance between the touch control installation through hole and the back cover fool-proof protrusion.

3. The navigation system mounting fool-proof device according to claim 1, wherein The distance between two adjacent digital display installation through holes is greater than the distance between two adjacent touch control installation through holes.

4. The navigation system mounting fool-proof device according to claim 1, wherein The first fool-proof groove is formed between the digital display fool-proof protrusion and the touch control fool-proof protrusion, and the groove opening of the first fool-proof groove faces the digital display installation through hole.

5. The vehicle navigation installation fool-proof device according to claim 1, wherein The second fool-proof groove is formed between the digital display fool-proof protrusion and the touch control fool-proof protrusion, and the groove opening of the second fool-proof groove is away from the digital display installation through hole and the touch control installation through hole.

6. The vehicle navigation installation fool-proof device according to claim 1, wherein The third fool-proof groove is arranged on the digital display fool-proof protrusion, and the groove opening of the third fool-proof groove is away from the digital display installation through hole.

7. The vehicle navigation installation fool-proof device according to claim 1, wherein The length ratio of the digital display fool-proof protrusion to the touch control fool-proof protrusion is 1.5 to 2.

8.

8. The vehicle navigation installation fool-proof device according to claim 1, wherein The length ratio of the digital display fool-proof protrusion to the touch control fool-proof protrusion is 2.

9. The vehicle navigation installation fool-proof device according to claim 8, wherein The vehicle-mounted navigation installation fool-proof device includes the navigation installation fool-proof device according to any one of claims 1 to 9.

10. A car navigation device, characterized by comprising: ​

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