Vehicle-mounted equipment front shell structure and vehicle-mounted equipment

Abstract

The utility model provides a vehicle-mounted device and its front shell structure, including plastic cement front shell and install the metal plate of plastic cement front shell, the metal plate has first spring and spring subassembly, the first spring is used for contact conduction with the metal shell of main structure, and the spring subassembly is used for the metal shell of main structure. The elastic piece assembly is used for being in contact conduction with a metal shell of a to-be-grounded piece, and the first elastic piece is arranged on the periphery of the metal plate. According to the vehicle-mounted equipment and the front shell structure thereof provided by the utility model, the front shell structure comprises the plastic front shell and the metal plate, so that smooth grounding of the to-be-grounded part can be realized, the consumption of metal materials can be reduced, the production cost of the front shell structure is reduced, and the weight of the front shell structure is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted devices, and more specifically, relates to a front shell structure of a vehicle-mounted device and a vehicle-mounted device. Background Art

[0002] A Mobile Digital Video Recorder (MDVR) integrates 4G and 5G video acquisition, GPS positioning management, and wireless transmission. It combines wireless communication technology, GPS global satellite positioning technology, and video surveillance technology and is the core product of a new generation of wireless vehicle-mounted video surveillance solutions. It is widely used in various mobile video surveillance fields such as buses, subways, trains, long-distance buses, taxis, logistics vehicles, private cars, and special vehicles (such as cash transport vehicles).

[0003] MDVR has electronic devices such as an electronic lock and a USB interface, so it needs to be grounded and conduct electricity. To meet the requirements of electronic shielding, the front shell of the MDVR host is a die-cast part, which is convenient for the electronic devices to be grounded and conduct electricity. However, the die-cast part has a high cost and increases the weight of the device. Summary of the Utility Model

[0004] The purpose of the embodiment of the utility model is to provide a front shell structure of a vehicle-mounted device and a vehicle-mounted device, so as to solve the technical problems of high cost and large weight caused by the die-cast front shell of the host in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a front shell structure of a vehicle-mounted device, including a plastic front shell and a metal plate installed on the plastic front shell. The metal plate has a first elastic piece and an elastic piece assembly. The first elastic piece is used to contact and conduct electricity with the metal shell of the main body structure, and the elastic piece assembly is used to contact and conduct electricity with the metal shell of the part to be grounded. The first elastic piece is arranged at the circumference of the metal plate.

[0006] In the above solution, the front shell structure includes a plastic front shell and a metal plate. The metal plate has a first elastic piece and an elastic piece assembly. The first elastic piece contacts and conducts electricity with the metal shell of the main body structure, and the elastic piece assembly is used to contact and conduct electricity with the part to be grounded. Therefore, the part to be grounded can be grounded and conduct electricity with the metal shell of the main body structure through the metal plate. By setting the front shell structure as a plastic front shell and a metal plate, it can not only achieve the smooth grounding of the part to be grounded, but also reduce the consumption of metal materials, reduce the production cost of the front shell structure, and reduce the weight of the front shell structure.

[0007] Optionally, the part to be grounded is an electronic lock and / or a USB interface.

[0008] In the above solution, the component to be grounded is an electronic lock, and the elastic sheet assembly is in contact and conduction with the metal housing of the electronic lock; or, the component to be grounded is a USB interface, and the elastic sheet assembly is in contact and conduction with the metal housing of the USB interface; or, the component to be grounded is an electronic lock and a USB interface, and the elastic sheet assembly is in contact and conduction with the metal housing of the electronic lock and the metal housing of the USB interface simultaneously.

[0009] Optionally, the elastic sheet assembly includes a second elastic sheet and a third elastic sheet. The second elastic sheet is used for contact and conduction with the metal housing of the electronic lock, and the third elastic sheet is used for contact and conduction with the metal housing of the USB interface.

[0010] In the above solution, when the front shell structure is installed on the main body structure, the second elastic sheet abuts against the metal housing of the electronic lock. Under the abutting action of the metal housing of the electronic lock, the second elastic sheet deforms, making the conductive connection between the second elastic sheet and the metal housing of the electronic lock more stable. When the front shell structure is installed on the main body structure, the third elastic sheet abuts against the metal housing of the USB interface. Under the abutting action of the metal housing of the USB interface, the third elastic sheet deforms, making the conductive connection between the third elastic sheet and the metal housing of the USB interface more stable.

[0011] Optionally, a first through hole for the electronic lock to pass through is formed in the metal plate, and the second elastic sheet includes a plurality of second elastic sheet units, and a plurality of the second elastic sheet units are all arranged at the circumference of the first through hole.

[0012] In the above solution, the electronic lock passes through the first through hole of the metal plate. The second elastic sheet includes a plurality of second elastic sheet units arranged at the first through hole. The size of the second elastic sheet unit is relatively small, and it is easier to generate slight deformation under the external force pressing, and there are a plurality of contact points between the second elastic sheet and the metal housing of the electronic lock, and the contact conduction state is more stable.

[0013] Optionally, a second through hole for the USB interface to pass through is formed in the metal plate, and the third elastic sheet includes a plurality of third elastic sheet units, and a plurality of the third elastic sheet units are all arranged at the circumference of the second through hole.

[0014] In the above solution, the USB interface passes through the second through hole of the metal plate. The third elastic sheet includes a plurality of third elastic sheet units arranged at the second through hole. The size of the third elastic sheet unit is relatively small, and it is easier to generate slight deformation under the external force pressing, and there are a plurality of contact points between the third elastic sheet and the metal housing of the USB interface, and the contact conduction state is more stable.

[0015] Optionally, the first elastic sheet includes a bent connecting portion and an elastic sheet body. The two sides of the bent connecting portion are respectively connected to the metal plate and the elastic sheet body, and the bent connecting portion extends from the metal plate towards the main body structure.

[0016] In the above solution, the metal plate and the elastic sheet body are connected by the bent connecting part, so that the elastic sheet body can be deformed at the part connected to the bent connecting part, and the strength of the first elastic sheet can be enhanced, and it is not easy to break near the metal plate.

[0017] Optionally, a plurality of break point structures are arranged on the elastic sheet body in the direction of extending along the edge of the metal plate, so that the elastic sheet body is separated into a plurality of first elastic sheet units.

[0018] In the above solution, the elastic sheet body extends along the edge of the metal plate, and the elastic sheet body is relatively long. If the elastic sheet body is an integral structure, it is difficult to generate pressing deformation, and the production requirements are also relatively high. By arranging the break point structure, the elastic sheet body is separated into a plurality of first elastic sheet units. The length of the first elastic sheet unit is relatively short, which is easy to produce and is also easier to be pressed and deformed.

[0019] Optionally, fixing holes are formed in the metal plate, and the plastic front shell has fixing pins on the side facing the metal plate, and the fixing pins are connected with the fixing holes in an interference fit manner.

[0020] In the above solution, the fixing pins on the plastic front shell pass through the fixing holes in the metal plate, and the fixing pins are connected with the fixing holes in an interference fit manner, so that the metal plate can be directly fixed on the plastic front shell through the cooperation of the fixing pins and the fixing holes, without using fixing parts such as screws, which can reduce the number of parts and simplify the installation steps.

[0021] Optionally, the end of the fixing pin includes a plurality of fixing units arranged at circumferential intervals, and the fixing units can be elastically deformed under the action of an external force.

[0022] In the above solution, by setting the end of the fixing pin as a plurality of circumferential units arranged at circumferential intervals, the outer contour dimension of the end of the fixing pin can be reduced under the action of an external force and can return to its original state when the external force disappears.

[0023] The present utility model also provides a vehicle-mounted device, which includes the above-mentioned vehicle-mounted device front shell structure, and also includes a main body structure, and the front shell structure is connected to the main body structure.

[0024] In the above solution, the front shell structure includes a plastic front shell and a metal plate. The metal plate has a first elastic sheet and an elastic sheet assembly. The first elastic sheet is in contact conduction with the metal shell of the main body structure, and the elastic sheet assembly is used for contact conduction with the component to be grounded. Therefore, the component to be grounded can be conducted to the ground through the metal plate and the metal shell of the main body structure. By setting the front shell structure as a plastic front shell and a metal plate, it can not only realize the smooth grounding of the component to be grounded, but also reduce the usage amount of metal materials, reduce the production cost of the front shell structure, and reduce the weight of the front shell structure. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a three-dimensional structure diagram of the front shell structure of the vehicle-mounted device provided by the embodiment of the present invention;

[0027] Figure 2 It is an exploded structure diagram of the front shell structure of the vehicle-mounted device provided by the embodiment of the present invention;

[0028] Figure 3 For Figure 2 It is a partial enlarged view of part A in

[0029] Figure 4 For Figure 2 It is a partial enlarged view of part B in

[0030] Figure 5 It is an exploded structure diagram of the vehicle-mounted device provided by the embodiment of the present invention.

[0031] Among them, the reference numerals in the drawings are as follows:

[0032] 10 - Front shell structure; 11 - Plastic front shell; 111 - Fixed pin; 1111 - Fixed unit; 12 - Metal plate; 120 - Shrapnel assembly; 121 - First shrapnel; 1211 - First shrapnel unit; 1212 - Breakpoint structure; 1213 - Bending connection part; 1214 - Shrapnel body; 122 - Second shrapnel; 1221 - Second shrapnel unit; 123 - Third shrapnel; 1231 - Third shrapnel unit; 124 - First through hole; 125 - Second through hole; 126 - Fixed hole; 20 - Electronic lock; 30 - USB interface; 40 - Main body structure. Detailed implementation manners

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0037] A Mobile Digital Video Recorder (MDVR) integrates 4G and 5G video collection, GPS positioning management, and wireless transmission. It combines wireless communication technology, GPS global satellite positioning technology, and video surveillance technology and is the core product of a new generation of wireless in-vehicle video surveillance solutions, widely used in various mobile video surveillance fields such as buses, subways, trains, long-distance buses, taxis, logistics vehicles, private cars, and special vehicles (such as cash transport vehicles).

[0038] MDVR has electronic devices such as an electronic lock and a USB interface, so it is necessary to conduct grounding for it. To meet the requirements of electromagnetic shielding, the front housing of the MDVR host is a die-cast part, which is convenient for the grounding conduction of electronic devices. However, the die-cast part has a high cost and will increase the weight of the device.

[0039] To alleviate the above technical problems, the present utility model proposes an in-vehicle device and its front housing structure 10. The front housing structure 10 includes a plastic front housing 11 and a metal plate 12. The metal plate 12 has a first elastic piece 121 and an elastic piece assembly 120. When the front housing structure 10 is installed on the main body structure 40 of the in-vehicle device, the first elastic piece 121 contacts the metal shell of the main body structure 40, and the elastic piece assembly 120 contacts the component to be grounded. Thus, the component to be grounded is conducted to the ground through the metal plate 12 and the metal shell, meeting the requirements of electromagnetic shielding. At the same time, the front housing structure 10 has less metal material, lower cost, and lighter weight.

[0040] Now, the front housing structure 10 of the in-vehicle device provided by the embodiments of the present utility model will be described.

[0041] Please refer to Figure 1 and Figure 2, the front shell structure 10 of the vehicle-mounted device includes a plastic front shell 11 and a metal plate 12. The metal plate 12 is installed on the plastic front shell 11, enabling the front shell structure 10 to form an independent installation module.

[0042] The plastic front shell 11 is made of plastic material. Compared with a metal front shell, it is lighter in weight and can be directly manufactured through an injection molding process. The manufacturing process is relatively simple. The plastic front shell 11 can be interconnected with the main body structure 40 of the vehicle-mounted device.

[0043] The metal plate 12 is made of metal material and has electrical conductivity. It can be manufactured through processes such as sheet metal working. The metal plate 12 is installed on the plastic front shell 11 and can be detachably or fixedly connected to the plastic front shell 11. The metal plate 12 has a first elastic piece 121 and an elastic piece assembly 120. When the front shell structure 10 is installed on the main body structure 40, the first elastic piece 121 comes into contact and conducts with the metal shell of the main body structure 40, and the elastic piece assembly 120 comes into contact and conducts with the component to be grounded. The component to be grounded is grounded through the conduction path of the elastic piece assembly 120, the metal plate 12, and the first elastic piece 121 to the metal shell of the main body structure 40, thereby meeting the requirements of electromagnetic shielding. The component to be grounded can be an electronic device that needs to be grounded.

[0044] Among them, the first elastic piece 121 is arranged at the circumference of the metal plate 12. The main body structure 40 has an open receiving cavity, and the front shell structure 10 covers the opening of the receiving cavity. The front shell structure 10 correspondingly contacts the end face (metal material) of the main body structure 40. Therefore, the first elastic piece 121 arranged at the circumference of the metal plate 12 can contact the end face of the main body structure 40.

[0045] When the first elastic piece 121 contacts the metal shell of the main body structure 40, the first elastic piece 121 deforms and makes full contact with the metal shell of the main body structure 40, avoiding phenomena such as poor contact. When the elastic piece assembly 120 contacts the component to be grounded, it also needs to contact the metal shell of the component to be grounded, and the elastic piece assembly 120 deforms and makes full contact with the metal shell of the component to be grounded, avoiding the occurrence of phenomena such as poor contact.

[0046] In the front shell structure 10 of the vehicle-mounted device in the above embodiment, including the plastic front shell 11 and the metal plate 12, the metal plate 12 has a first elastic piece 121 and an elastic piece assembly 120. The first elastic piece 121 contacts and conducts with the metal shell of the main body structure 40, and the elastic piece assembly 120 is used to contact and conduct with the component to be grounded. Therefore, the component to be grounded can be grounded through the metal plate 12 to the metal shell of the main body structure 40. By setting the front shell structure 10 as the plastic front shell 11 and the metal plate 12, it can not only achieve the smooth grounding of the component to be grounded, but also reduce the usage of metal materials, lower the production cost of the front shell structure 10, and reduce the weight of the front shell structure 10.

[0047] In some embodiments of the present utility model, please refer to Figure 1 and Figure 2 , the component to be grounded is the electronic lock 20 and / or the USB interface 30. This embodiment includes the following three cases: the component to be grounded is the electronic lock 20, and the elastic piece assembly 120 is in contact conduction with the metal shell of the electronic lock 20; or, the component to be grounded is the USB interface 30, and the elastic piece assembly 120 is in contact conduction with the metal shell of the USB interface 30; or, the component to be grounded is the electronic lock 20 and the USB interface 30, and the elastic piece assembly 120 is in contact conduction with the metal shells of both the electronic lock 20 and the USB interface 30 simultaneously.

[0048] In other embodiments, the number of components to be grounded can be three, four, etc., and the specific number and type are not limited here.

[0049] In some embodiments of the present utility model, please refer to Figure 1 and Figure 2 , the elastic piece assembly 120 includes a second elastic piece 122 and a third elastic piece 123. The second elastic piece 122 is used for contact conduction with the metal shell of the electronic lock 20, and the third elastic piece 123 is used for contact conduction with the metal shell of the USB interface 30. When the front shell structure 10 is installed on the main body structure 40, the second elastic piece 122 abuts against the metal shell of the electronic lock 20. Under the abutting action of the metal shell of the electronic lock 20, the second elastic piece 122 deforms, making the conductive connection between the second elastic piece 122 and the metal shell of the electronic lock 20 more stable. When the front shell structure 10 is installed on the main body structure 40, the third elastic piece 123 abuts against the metal shell of the USB interface 30. Under the abutting action of the metal shell of the USB interface 30, the third elastic piece 123 deforms, making the conductive connection between the third elastic piece 123 and the metal shell of the USB interface 30 more stable.

[0050] In some embodiments, please refer to Figure 1 and Figure 2 , a first through hole 124 for the electronic lock 20 to pass through is formed in the metal plate 12. The second elastic piece 122 includes a plurality of second elastic piece units 1221, and the plurality of second elastic piece units 1221 are all arranged on the circumference of the first through hole 124. The electronic lock 20 is arranged through the first through hole 124, and the plurality of second elastic piece units 1221 are arranged around the first through hole 124. Each second elastic piece unit 1221 abuts against the metal shell of the electronic lock 20. The second elastic piece unit 1221 can deform under an external force. When the second elastic piece unit 1221 abuts against the metal shell of the electronic lock 20, the second elastic piece unit 1221 is pressed and deformed, and the second elastic piece unit 1221 and the metal shell of the electronic lock 20 are closely attached to each other.

[0051] The electronic lock 20 passes through the first through-hole 124 of the metal plate 12. The second elastic sheet 122 includes a plurality of second elastic sheet units 1221 disposed at the first through-hole 124. The size of the second elastic sheet unit 1221 is relatively small, and it is easier to generate slight deformation under the external force pressing, and there are a plurality of contact points between the second elastic sheet 122 and the metal housing of the electronic lock 20, and the contact conduction state is more stable.

[0052] Optionally, the number of the second elastic sheet units 1221 is three, four, five, six, etc., and the specific number is not limited herein. The plurality of second elastic sheet units 1221 can be equally spaced around the first through-hole 124, making the conductive connection between the electronic lock 20 and the second elastic sheet 122 more stable.

[0053] Optionally, the side of the metal plate 12 facing the plastic front shell 11 is the first side of the plastic front shell 11, and the side of the metal plate 12 facing the main body structure 40 is the second side of the plastic front shell 11. The electronic lock 20 is installed on the plastic front shell 11, and the second elastic sheet 122 is disposed on the second side of the metal plate 12. Specifically, when installing the front shell structure 10, first install the electronic lock 20 on the plastic front shell 11, and then install the metal plate 12 on the plastic front shell 11. During the installation process of the metal plate 12, the electronic lock 20 gradually passes through the first through-hole 124 of the metal plate 12, and the second elastic sheet 122 is disposed on the second side of the metal plate 12, which is more convenient for the installation of the metal plate 12.

[0054] Optionally, the second elastic sheet 122 is tapered from the metal plate 12 to the direction away from the metal plate 12, so that after the electronic lock 20 is installed in the first through-hole 124, the second elastic sheet unit 1221 can abut against the metal housing of the electronic lock 20, making the contact between the two closer.

[0055] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 , a second through-hole 125 for the USB interface 30 to pass through is formed on the metal plate 12. The third elastic sheet 123 includes a plurality of third elastic sheet units 1231, and the plurality of third elastic sheet units 1231 are all disposed at the periphery of the second through-hole 125. The USB interface 30 passes through the second through-hole 125, and the plurality of third elastic sheet units 1231 are disposed around the second through-hole 125, and each third elastic sheet unit 1231 abuts against the metal housing of the USB interface 30. The third elastic sheet unit 1231 can be deformed under the external force. When the third elastic sheet unit 1231 abuts against the metal housing of the USB interface 30, the third elastic sheet unit 1231 is deformed under the pressing, and the third elastic sheet unit 1231 and the metal housing of the USB interface 30 are in close contact with each other.

[0056] The USB interface 30 passes through the second through-hole 125 of the metal plate 12. The third elastic sheet 123 includes a plurality of third elastic sheet units 1231 disposed at the second through-hole 125. The size of the third elastic sheet unit 1231 is relatively small, and it is easier to generate slight deformation under external pressing force. Moreover, there are a plurality of contact points between the third elastic sheet 123 and the metal housing of the USB interface 30, and the contact conduction state is more stable.

[0057] Optionally, the number of the third elastic sheet units 1231 is two, three, four, five, six, etc., and the specific number is not limited herein. The USB interface 30 is usually square, and the second through-hole 125 is usually also square. The third elastic sheet units 1231 can be disposed on each side wall of the second through-hole 125, making the conductive connection between the USB interface 30 and the third elastic sheet 123 more stable.

[0058] Optionally, the side of the metal plate 12 facing the plastic front shell 11 is the first side of the plastic front shell 11, and the side of the metal plate 12 facing the main body structure 40 is the second side of the plastic front shell 11. The USB interface 30 is installed on the main body structure 40, and the third elastic sheet 123 is disposed on the first side of the metal plate 12. Specifically, when installing the vehicle-mounted device, first install the electronic lock 20 on the plastic front shell 11, then install the metal plate 12 on the plastic front shell 11, and then install the front shell structure 10 to the main body structure 40. Disposing the third elastic sheet 123 on the first side of the metal plate 12 is more convenient for the docking installation of the second through-hole 125 and the USB interface 30.

[0059] Optionally, the third elastic sheet 123 is tapered from the metal plate 12 to the direction away from the metal plate 12, so that after the USB interface 30 is installed into the second through-hole 125, the third elastic sheet unit 1231 can tightly press against the metal housing of the USB interface 30, making the contact between the two closer.

[0060] In some embodiments of the present invention, please refer to Figure 3 , the first elastic sheet 121 includes a bent connection portion 1213 and an elastic sheet body 1214. The two sides of the bent connection portion 1213 are respectively connected to the metal plate 12 and the elastic sheet body 1214. The bent connection portion 1213 extends from the metal plate 12 toward the main body structure 40. The metal plate 12, the bent connection portion 1213, and the elastic sheet body 1214 are connected in sequence. The two sides of the bent connection portion 1213 can be understood as the two sides in its width direction. One side of the bent connection portion 1213 is connected to the metal plate 12 and extends toward the main body structure 40 along the direction away from the metal plate 12. The extending direction may not be perpendicular to the metal plate 12, as long as the elastic sheet body 1214 is closer to the main body structure 40 relative to the metal plate 12.

[0061] The metal plate 12 and the elastic piece body 1214 are connected through the bending connection part 1213, so that the elastic piece body 1214 can be deformed at the part connected to the bending connection part 1213, and the strength of the first elastic piece 121 can also be enhanced, and it is not easy to break near the metal plate 12.

[0062] In some embodiments, the cross-section of the bending connection part 1213 is bent, which can enhance the strength of the bending connection part 1213 and prevent the first elastic piece 121 from breaking during use.

[0063] Optionally, the cross-section of the bending connection part 1213 is arc-shaped, making the processing of the bending connection part 1213 relatively simple and easy to be formed by sheet metal.

[0064] In some embodiments, the metal plate 12 and the elastic piece body 1214 are arranged parallel to each other, so that the first elastic piece 121 has a large contact area with the end of the main body structure 40. Correspondingly, the cross-section of the bending connection part 1213 is arc-shaped, and the corresponding radian is 90 degrees, so that both sides of the bending connection part 1213 in the width direction can connect the metal plate 12 and the elastic piece body 1214.

[0065] In some embodiments of the present utility model, please refer to Figure 2 and Figure 3 , a plurality of break point structures 1212 are arranged on the elastic piece body 1214 in the direction of extending along the edge of the metal plate 12, so that the elastic piece body 1214 is divided into a plurality of first elastic piece units 1211. The elastic piece body 1214 extends along the edge of the metal plate 12, and a plurality of break point structures 1212 are arranged on the elastic piece body 1214, so that the elastic piece body 1214 is divided into multiple sections of structures, and each section of structure is called a first elastic piece unit 1211. Between two adjacent first elastic piece units 1211 is the break point structure 1212. Among them, the break point structure 1212 can be understood as a structure such as a notch.

[0066] The elastic piece body 1214 extends along the edge of the metal plate 12, and the elastic piece body 1214 is relatively long. If the elastic piece body 1214 is an integral structure, it is difficult to produce pressing deformation, and the production requirements are also relatively high. By setting the break point structure 1212, the elastic piece body 1214 is divided into a plurality of first elastic piece units 1211. The length of the first elastic piece unit 1211 is shorter, which is easy to produce and is also easier to be pressed and deformed.

[0067] In some embodiments, please refer to Figure 2 , the metal plate 12 is rectangular, and the first elastic piece 121 is arranged on each side of the metal plate 12, and each first elastic piece 121 on each side includes a plurality of first elastic piece units 1211 arranged at intervals.

[0068] In some embodiments of the present utility model, please refer to Figure 2, fixing holes 126 are formed in the metal plate 12, and fixing pins 111 are provided on one side of the plastic front shell 11 facing the metal plate 12. The fixing pins 111 are connected with the fixing holes 126 in an interference fit. The fixing holes 126 penetrate through the metal plate 12 in the thickness direction of the metal plate 12, and the fixing pins 111 extend from the side of the plastic front shell 11 facing the metal plate 12 towards the metal plate 12. When assembling the metal plate 12 and the plastic front shell 11, the fixing pins 111 pass through the fixing holes 126 to fix the metal plate 12 on the plastic front shell 11. The outer diameter of the fixing pins 111 and the inner diameter of the fixing holes 126 are in an interference fit, so that the fixing pins 111 and the fixing holes 126 are tightly connected.

[0069] The fixing pins 111 on the plastic front shell 11 pass through the fixing holes 126 on the metal plate 12, and the fixing pins 111 are connected with the fixing holes 126 in an interference fit, so that the metal plate 12 can be directly fixed on the plastic front shell 11 through the cooperation of the fixing pins 111 and the fixing holes 126. There is no need to use fixing parts such as screws, which can reduce the number of parts and simplify the installation steps.

[0070] In some embodiments of the present invention, please refer to Figure 4 , the end of the fixing pin 111 includes a plurality of fixing units 1111 arranged at intervals in the circumferential direction. The fixing units 1111 can be elastically deformed under the action of an external force. The plurality of circumferentially arranged fixing units 1111 are arranged at intervals in the circumferential direction of the fixing pin 111, and two adjacent fixing units 1111 are relatively independently arranged. One end of each fixing unit 1111 is connected to the body of the fixing pin 111, and the other end is a free end. The fixing unit 1111 is equivalent to a cantilever structure. When a pressure is applied to the free end, it is easy to produce elastic deformation.

[0071] By arranging the end of the fixing pin 111 as a plurality of fixing units 1111 arranged at intervals in the circumferential direction, the outer contour dimension of the end of the fixing pin 111 can be reduced under the action of an external force and can return to its original state when the external force disappears. In this way, when the metal plate 12 is assembled to the plastic front shell 11, under the pressing of the fixing hole 126, each fixing unit 1111 at the end of the fixing pin 111 moves towards the central axis direction of the fixing pin 111, so that the size of the end of the fixing pin 111 becomes smaller for the fixing hole 126 to pass through, realizing the tight connection between the fixing hole 126 and the fixing pin 111.

[0072] By arranging the end of the fixing pin 111 as a plurality of fixing units 1111, when tightly connecting the fixing hole 126 and the fixing pin 111, there is no need to use an installation tool for pressing. The fixing unit 1111 can be directly deformed to make the fixing pin 111 enter the fixing hole 126, and the installation is more convenient.

[0073] In some embodiments, the number of the fixing units 1111 is three, four, five, etc., and the specific number is not limited here.

[0074] Please refer to Figure 5 , the present utility model also provides a vehicle-mounted device, which includes the vehicle-mounted device front shell structure 10 in any of the above embodiments. The vehicle-mounted device further includes a main body structure 40, and the front shell structure 10 is connected to the main body structure 40.

[0075] The vehicle-mounted device provided by the present utility model adopts the above-mentioned vehicle-mounted device front shell structure 10. The front shell structure 10 includes a plastic front shell 11 and a metal plate 12. The metal plate 12 has a first elastic piece 121 and an elastic piece assembly 120. The first elastic piece 121 is in contact conduction with the metal shell of the main body structure 40, and the elastic piece assembly 120 is used for contact conduction with the piece to be grounded. Therefore, the piece to be grounded can be conductively grounded to the metal shell of the main body structure 40 through the metal plate 12. By setting the front shell structure 10 as the plastic front shell 11 and the metal plate 12, it can not only achieve the smooth grounding of the piece to be grounded, but also reduce the usage amount of metal materials, reduce the production cost of the front shell structure 10, and reduce the weight of the front shell structure 10.

[0076] In some embodiments, the front shell structure 10 and the main body structure 40 are fixedly connected by fixing parts such as screws. Among them, connection holes are formed in the plastic front shell 11 of the front shell structure 10, and the fixing parts pass through the connection holes in the plastic front shell 11 and are connected to the main body structure 40.

[0077] In some embodiments, the main body structure 40 includes a metal outer shell made of metal. After the front shell structure 10 is installed on the main body structure 40, the first elastic piece 121 on the metal plate 12 is in contact with the metal outer shell.

[0078] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A front shell structure of a vehicle-mounted device, characterized in that: It includes a plastic front shell and a metal plate installed on the plastic front shell, the metal plate has a first spring sheet and a spring sheet assembly, the first spring sheet is used to contact and conduct with the metal shell of the main structure, the spring sheet assembly is used to contact and conduct with the metal shell of the grounded part, and the first spring sheet is arranged at the periphery of the metal plate.

2. The front housing structure of the vehicle-mounted device according to claim 1, characterized in that: The part to be grounded is an electronic lock and / or a USB interface.

3. The front housing structure of the vehicle-mounted device according to claim 1, characterized in that: The spring element assembly includes a second spring element and a third spring element, wherein the second spring element is used for contacting and conducting with a metal shell of the electronic lock, and the third spring element is used for contacting and conducting with a metal shell of the USB interface.

4. The front housing structure of the vehicle-mounted device according to claim 3, characterized in that: The metal plate is provided with a first through hole for the electronic lock to pass through, and the second elastic sheet includes a plurality of second elastic sheet units, and the plurality of second elastic sheet units are all arranged at the circumference of the first through hole.

5. The front housing structure of the vehicle-mounted device according to claim 3, characterized in that: The metal plate is provided with a second through hole for the USB interface to pass through, and the third elastic sheet includes a plurality of third elastic sheet units, and the plurality of third elastic sheet units are all arranged at the circumference of the second through hole.

6. The front housing structure of the vehicle-mounted device according to claim 1, characterized in that: The first spring sheet includes a bent connection portion and a spring sheet body, the two sides of the bent connection portion are respectively connected to the metal plate and the spring sheet body, and the bent connection portion is extended from the metal plate toward the main structure.

7. The front housing structure of the vehicle-mounted device according to claim 6, characterized in that: The spring sheet body is provided with a plurality of breakpoint structures in a direction extending along the edge of the metal plate, so that the spring sheet body is divided into a plurality of first spring sheet units.

8. The front housing structure of the vehicle-mounted device according to any one of claims 1 to 7, characterized in that: The metal plate is provided with a fixing hole, and the plastic front shell has a fixing pin on a side facing the metal plate, and the fixing pin is connected with the fixing hole by interference fit.

9. The front housing structure of the vehicle-mounted device according to claim 8, characterized in that: The end of the fixing pin includes a plurality of fixing units arranged at intervals in the circumferential direction, and the fixing units can be elastically deformed under the action of external force.

10. A vehicle-mounted device, characterized in that: It comprises the front shell structure of the vehicle-mounted equipment according to any one of claims 1 to 9, and also comprises a main body structure, wherein the front shell structure and the main body structure are connected to each other.

Images