CN210526445U

CN210526445U - CAN bus post-operation assembly suitable for special vehicle

Info

Publication number: CN210526445U
Application number: CN201921267476.6U
Authority: CN
Inventors: 汤池; 朱小明; 胡环宇; 刘峰; 郑忠强
Original assignee: Hunan Fuli Environmental Protection Technology Co ltd
Current assignee: Hunan Fuli Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-05-15
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses an operation assembly behind CAN bus suitable for special vehicle, including preceding shell, the bottom plate border is provided with the arch, preceding shell is provided with the recess that corresponds with it, the bottom plate wants the cooperation to be connected through arch and recess with preceding shell, preceding shell surface is provided with the film button, be provided with the PCBA mainboard in the casing, the film button is connected with the PCBA mainboard electricity, preceding shell lateral wall runs through perpendicularly and is equipped with emergency stop button, emergency stop button is connected with the PCBA mainboard electricity, preceding shell lateral wall still runs through perpendicularly and is equipped with small-size handle, this small-size handle is connected with the PCBA board electricity, preceding shell bottom runs through perpendicularly and is provided with M12 aviation connector, this M12 aviation connector is connected with the PCBA mainboard electricity. The utility model discloses the operation assembly passes through the connecting wire behind the CAN bus of research and development, and the mode through bus transmission CAN be directly show the running state real-time of state, actuating mechanism state, the system power supply instruction of each sensor of vehicle facial make-up, system communication state and CAN operation assembly self.

Description

CAN bus post-operation assembly suitable for special vehicle

Technical Field

The utility model relates to a vehicle equipment field specifically is an operation assembly behind CAN bus suitable for special purpose vehicle.

Background

With the development of vehicle-mounted electronic devices, more and more vehicles are using bus-based electrical appliance structures, and a CAN bus and a LIN bus are two common bus structures. Here, CAN is an abbreviation of controllerarenetwork (hereinafter referred to as CAN), and is a serial communication protocol standardized by ISO international. The CAN bus is a serial data communication protocol developed by BOSCH company in germany from the beginning of the 80 s for solving data exchange among a plurality of control and test instruments in modern automobiles, and is a multi-master bus, and a communication medium CAN be a twisted pair, a coaxial cable or an optical fiber. In the current automobile industry, various electronic control systems have been developed for the purpose of safety, comfort, convenience, low pollution, and low cost. Since the types of data used for communication between these systems and the requirements for reliability are different, the number of harnesses is increased in many cases because the harnesses are formed of a plurality of buses. To meet the need for "reducing the number of harnesses", "performing high-speed communication of a large amount of data through a plurality of LANs", CAN has been standardized thereafter by ISO11898 and ISO11519, and is now a standard protocol for automotive networks in europe. The current special vehicle adopts a knob switch, a key switch or a silica gel key board as a means for inputting manual operation signals, and has the following problems:

1. the service life of the knob switch and the key switch is short, generally about 10 ten thousand times

2. The protection level of an operation box consisting of the knob switch and the key switch is not high, and generally only front protection can be achieved, namely the protection level IP 65. Effective protection can not be achieved on other surfaces, and effective dust prevention and water prevention can not be achieved at an electrical interface.

3. Knob switch, key switch are bulky, and the space that occupies when more equipment of needs control is great, and installation difficulty in the driver's cabin is harmonious with chassis interior trim style, and the outward appearance is ugly.

4. The wiring is complicated, and at least two wires are required for each knob or key switch. After the number of switches is large, the wire harness is thick, the wire harness is difficult to pass through holes, the wire harness is easy to wear and break, accidents such as short circuit and system fault are caused, troubleshooting and maintenance are difficult, and replacement is not easy.

5. The man-machine interaction is poor.

6. The vehicle information state shows the trouble, needs to increase numerous signal indicator, and the wiring is complicated, and the operation box volume increases, and occupation space increases.

7. The operation box key formed by the silica gel key panel, the knob switch, the button switch combination and the finished product box is inconvenient to install, and the whole protection level is low under the condition that the box cover is opened.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

a CAN bus post-operation assembly suitable for special vehicles comprises a shell, wherein the shell comprises a front shell and a bottom plate, the edge of the bottom plate is provided with a protrusion, the front shell is provided with a groove corresponding to the front shell, the bottom plate and the front shell are connected in a matched mode through the protrusion and the groove, the surface of the front shell is provided with a membrane key, a PCBA mainboard is arranged in the shell, the membrane key is electrically connected with the PCBA mainboard, the side wall of the front shell is vertically penetrated with an emergency stop button which is electrically connected with the PCBA mainboard, the side wall of the front shell is also vertically penetrated with a small handle which is electrically connected with the PCBA mainboard, the bottom of the front shell is vertically penetrated with an M12 aviation connector, the M12 aviation connector is electrically connected with the PCBA mainboard, and signals of normally open contact and normally closed contact of the emergency stop button, a COM end signal and an M12 aviation connector are electrically connected, the PCBA main board adopts Fuli brand VA-CL-0002-1V1.03 model, and the M12 aviation connector adopts Lepai brand FLQ-M12-M08-0.2 model.

Preferably, the joint of the front shell and the bottom plate is adhered with a first waterproof sealing ring.

Preferably, the small handle is provided with a rubber sheath, and the bottom of the rubber sheath is provided with a joint with the small handle and the front shell and is fixed by a screw.

Preferably, a third watertight sealing ring is arranged between the emergency stop button and the front shell.

Preferably, a second waterproof sealing ring is arranged in the groove of the front shell, and the first waterproof sealing ring, the second waterproof sealing ring and the third waterproof sealing ring are made of rubber materials.

Preferably, both sides wall of preceding shell all is provided with at least one screw hole, screw hole on the same lateral wall is along vertical horizontal plane same axis evenly distributed.

Preferably, the front shell is provided with at least one through hole in a penetrating manner, and a waterproof breathable film is arranged in the through hole.

Preferably, a convex ring used for installing a waterproof breathable film is arranged in the through hole, and the waterproof breathable film is fixedly bonded on the convex ring.

Preferably, two waterproof breathable films are arranged in each through hole, the waterproof breathable films are respectively bonded on the upper side surface and the lower side surface of the convex ring, and the two waterproof breathable films are semicircular and are arranged on the convex ring in a staggered mode.

Preferably, the front shell and the bottom plate are made of ABS or nylon materials, the bottom plate is provided with a heat conduction layer, and the heat conduction layer is a heat conduction polyester coating layer.

The utility model has the advantages that

(1) The utility model discloses the operation assembly passes through the connecting wire behind the CAN bus of research and development, and the mode through bus transmission CAN be directly show the running state real-time of state, actuating mechanism state, the system power supply instruction of each sensor of vehicle facial make-up, system communication state and CAN operation assembly self.

(2) The utility model discloses a connecting wire can directly convert switching signal to bus signal transmission to relevant operating element or controller.

(3) The utility model discloses a customization film button, button instruction, button icon area are shaded and are shown, and according to the function difference, the colour that is shaded is different, and the button is according to the function subregion, and the appearance is pleasing to the eye, convenient operation, and it is more than 80 ten thousand times to singly press the key to reach the life-span.

(4) Through setting up waterproof circle and ventilative water proof membrane, be convenient for improve the utility model discloses a waterproof nature, dustproofness have increased the utility model discloses a life.

(5) The utility model discloses a set up the heat-conducting layer and can improve the heat dispersion of casing, in casing PCBA mainboard during operation, can play supplementary radiating function, avoid the PCBA mainboard overheat phenomenon to appear, reduced the fault rate of PCBA mainboard, improved the security performance of PCBA mainboard when using simultaneously.

(6) The collection, conversion and sending of key information are realized by arranging the PCBA mainboard (collected switch signals of the key state are converted into CAN bus data and sent to other equipment); the CAN bus is used as a communication means to transmit input signals to other equipment, and the CAN bus is used for receiving signals sent by other equipment to control the indicator lamps so as to realize state interaction.

Drawings

Fig. 1 is a side view of the structure of the present invention.

Fig. 2 is a sectional view of the structure of the present invention.

Fig. 3 is a partial enlarged view of the present invention.

Fig. 4 is a front view of the structure of the present invention.

Fig. 5 is a schematic diagram of the internal structure of the through hole of the present invention.

Description of reference numerals: 1-shell, 101-bottom plate, 102-front shell, 2-first waterproof sealing ring, 3-emergency stop button, 4-small handle, 5-PCBA mainboard, 6-M12 aviation connector, 7-thin film button, 8-threaded hole, 9-through hole, 91-convex ring, 92-waterproof breathable film, 10-bulge, 11-second waterproof sealing ring, 12-third waterproof sealing ring and 13-heat conducting layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 embodiments in 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.

Example 1

As shown in fig. 1 to 5, a CAN bus rear operation assembly suitable for a special vehicle includes a housing 1, where the housing 1 includes a front shell 102 and a bottom plate 101, a first waterproof sealing ring 2 is adhered to a joint of the front shell 102 and the bottom plate 101, a protrusion 10 is disposed at an edge of the bottom plate 101, the front shell 102 is provided with a groove corresponding to the front shell, the bottom plate 101 and the front shell 102 are connected in a matching manner through the protrusion 10 and the groove and further fixed by a screw, a second waterproof sealing ring 11 is disposed in the groove of the front shell 102, a membrane key 7 is disposed on a surface of the front shell 102, a PCBA motherboard 5 is disposed in the housing 1, the membrane key 7 is electrically connected with the PCBA motherboard 5, and the PCBA motherboard 5 collects an on-off state of a panel of the membrane key 7 and controls signals and state indications on the panel of the membrane key 7; an emergency stop button 3 vertically penetrates through the side wall of the front shell 102, the emergency stop button 3 is electrically connected with a PCBA mainboard 5, signals of normally open contacts and normally closed contacts of the emergency stop button 3 are connected to the PCBA mainboard 5, the PCBA mainboard 5 adopts an action signal of the emergency stop button 3, and the collected switch signal is converted into a CAN bus signal form and transmitted to other equipment; the side wall of the front shell 102 is also vertically provided with a small handle 4 in a penetrating manner, the small handle 4 is electrically connected with a PCBA mainboard 5, and the PCBA mainboard 5 collects action signals of the small handle 4 and converts the collected switch signals into CAN bus signals to be transmitted to other equipment; an M12 aviation connector 6 is vertically arranged at the bottom of the front shell 102 in a penetrating manner, the M12 aviation connector 6 is electrically connected with a PCBA mainboard 5, signals of normally open and normally closed contacts of the emergency stop button 3 and a COM end signal are electrically connected with the M12 aviation connector 6, and high and low level signals output by the normally open and normally closed contacts of the emergency stop button 3 are determined by whether the high level or the low level is connected to a COM end through the M12 aviation connector 6 from the outside; a third waterproof sealing ring 12 is arranged between the emergency stop button 3 and the front shell 102, the first waterproof sealing ring 2, the second waterproof sealing ring 11 and the third waterproof sealing ring 12 are made of rubber materials, the waterproof sealing rings play a role in dust prevention and water prevention, the rubber materials are adopted to further play a role in corrosion prevention, and the service life of the equipment is prolonged; both side walls of the front shell 102 are provided with at least one threaded hole 8, the threaded holes 8 on the same side wall are uniformly distributed along the same axis of a vertical horizontal plane, and the installation of an operation assembly is facilitated by the arrangement of the threaded holes 8; the front shell 102 is provided with at least one through hole 9 in a penetrating manner, the through hole 9 is internally provided with a waterproof breathable film 92, the through hole 9 is internally provided with a convex ring 91 for installing the waterproof breathable film 92, the waterproof breathable film 92 is fixedly adhered to the convex ring 91, each through hole 9 is internally provided with two waterproof breathable films 92, the waterproof breathable films 92 are respectively adhered to the upper side surface and the lower side surface of the convex ring 91, the two waterproof breathable films 92 are semicircular and are arranged on the convex ring 91 in a staggered manner, the installation of the waterproof breathable films 92 is very conveniently realized, the fixing of the waterproof breathable films 92 and the through holes 9 can be stably realized, the waterproof breathable films (92) are prevented from falling out of the through holes 9 when in use, the reliability of the whole shell 1 in use is improved, and the waterproof breathable films, the air flow channels are arranged in the through holes 9 in a staggered manner, so that the circulation speed of the air flow in the through holes 9 can be ensured; be provided with heat-conducting layer 13 on the bottom plate 101, heat-conducting layer 13 is the heat conduction polyester coating layer, PCBA mainboard 5 during operation in casing 1, can play supplementary radiating function, avoid PCBA mainboard 5 overheat phenomenon to appear, PCBA mainboard 5's fault rate has been reduced, PCBA mainboard 5's security performance when using has been improved simultaneously, the heat polyester coating layer is formed by the even coating of heat conduction polyester coating, heat conduction polyurethane has very excellent adhesive force, heat conductivity and solidification properties, coefficient of heat conductivity reaches 2.2W/(m.K), be the heat conduction coating that the performance is known at present very excellent, can play very good heat conduction effect.

Example 2

As shown in fig. 1-5, this embodiment is further optimized based on embodiment 1, specifically, a rubber sheath is disposed on the small-sized handle 4, and the bottom of the rubber sheath is disposed at the junction of the small-sized handle 4 and the front shell 102 and is fixed by screws; the front shell 102 is made of nylon material, and the bottom plate 101 is made of aluminum plate.

In the embodiment, the rubber sheath is arranged, so that the operation comfort is improved conveniently, the small handle 4 is protected conveniently, and the service life of the small handle 4 is prolonged; preceding shell 102 adopts the nylon material and bottom plate 101 to adopt aluminium system plate, makes the utility model discloses play corrosion-resistant, anticorrosive effect, and aluminium system plate still possesses radiating effect, and the PCBA mainboard 5 during operation of being convenient for plays the function of heat conduction.

Principle of operation

The utility model relates to an operation assembly behind CAN bus suitable for special vehicle, each part is shown in fig. 1-5, during the use, earlier with PCBA mainboard 5 through self-tapping screw and preceding shell 102 fixed connection, mutually support the connection and preceding shell 102 and bottom plate 101 through protruding 10 and recess and pass through the screw further fixed with bottom plate 101 with preceding shell 102, connect gradually small-size handle 4, emergency stop button 3, M12 aviation connector 6 on preceding shell 102 again, insert PCBA mainboard 5 with the normally open of emergency stop button 3, the signal of normally closed contact, PCBA mainboard 5 adopts the action signal of emergency stop button 3, and convert the switching signal who gathers into the form of CAN bus signal and transmit other equipment for; the PCBA mainboard 5 collects action signals of the small handle 4, converts the collected switch signals into CAN bus signals and transmits the CAN bus signals to other equipment; signals of normally open and normally closed contacts of the emergency stop button 3 and a COM end signal are electrically connected with the M12 aviation connector 6, and high and low level signals output by the normally open and normally closed contacts of the emergency stop button 3 are determined by whether the high level or the low level is accessed to the COM end through the M12 aviation connector 6 from the outside; because the film button 7 is connected with PCBA mainboard 5 electricity and the adhesion of film button 7 and preceding shell 102 through the 3M gum, through adjusting film button 7, film button 7 conveys PCBA mainboard 5 through the mode of signal of telecommunication, PCBA mainboard 5 realizes the collection, conversion and sending of button information, the switching signal who will gather the button state converts CAN bus data and sends to other equipment, realize instructing the receipt of state information, conversion and control, utilize the CAN bus as the communication means, transmit input signal to other equipment, utilize the CAN bus to receive the signal that other equipment sent, be used for controlling the pilot lamp, realize the state interaction.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The CAN bus rear operation assembly suitable for the special vehicle is characterized by comprising a shell (1), wherein the shell (1) comprises a front shell (102) and a bottom plate (101), a bulge (10) is arranged on the edge of the bottom plate (101), a groove corresponding to the front shell (102) is formed in the front shell (102), the bottom plate (101) and the front shell (102) are connected with the groove in a matched mode through the bulge (10), a thin film key (7) is arranged on the surface of the front shell (102), a PCBA mainboard (5) is arranged in the shell (1), the thin film key (7) is electrically connected with the PCBA mainboard (5), an emergency stop button (3) vertically penetrates through the side wall of the front shell (102), the emergency stop button (3) is electrically connected with the PCBA mainboard (5), a small handle (4) vertically penetrates through the side wall of the front shell (102), and the small handle (4) is electrically connected with the PCBA mainboard (5), an M12 aviation connector (6) vertically penetrates through the bottom of the front shell (102), the M12 aviation connector (6) is electrically connected with the PCBA mainboard (5), and signals of normally open and normally closed contacts and a COM end signal of the emergency stop button (3) are electrically connected with the M12 aviation connector (6).

2. The CAN bus rear operating assembly applicable to special vehicles according to claim 1, characterized in that the junction of the front shell (102) and the bottom plate (101) is glued and provided with a first waterproof sealing ring (2).

3. The CAN bus rear operating assembly suitable for the special vehicle according to claim 1, wherein the mini-handle (4) is provided with a rubber sheath, and the bottom of the rubber sheath is provided with a joint of the mini-handle (4) and the front shell (102) and is fixed by a screw.

4. The CAN bus rear operating assembly for special purpose vehicles according to claim 1 wherein a third watertight sealing ring (12) is provided between the emergency stop button (3) and the front shell (102).

5. The CAN bus rear operating assembly for special purpose vehicles according to any one of claims 1 to 4 wherein the recess of the front shell (102) is provided with a second waterproof seal (11).

6. The CAN bus rear operating assembly suitable for special purpose vehicles according to claim 5, wherein both side walls of the front shell (102) are provided with at least one threaded hole (8), and the threaded holes (8) on the same side wall are uniformly distributed along the same axis of a vertical horizontal plane.

7. The CAN bus rear operating assembly suitable for special purpose vehicles according to claim 6, wherein the front shell (102) is provided with at least one through hole (9) therethrough, and the through hole (9) is provided with a waterproof and breathable membrane (92).

8. The CAN bus rear operation assembly applicable to special vehicles according to claim 7, wherein a protruding ring (91) for installing a waterproof breathable film (92) is arranged in the through hole (9), and the waterproof breathable film (92) is adhered and fixed on the protruding ring (91).

9. The CAN bus post-operation assembly applicable to special vehicles according to claim 8, wherein two waterproof breathable films (92) are arranged in each through hole (9), the waterproof breathable films (92) are respectively adhered to the upper and lower sides of the convex ring (91), and the two waterproof breathable films (92) are semicircular and are arranged on the convex ring (91) in a staggered manner.

10. The CAN bus rear operating assembly suitable for the special vehicle according to claim 9, wherein the front shell (102) is made of ABS or nylon material, the bottom plate (101) is made of metal material, the bottom plate (101) is provided with a heat conducting layer (13), and the heat conducting layer (13) is a heat conducting polyester coating layer.