CN220965376U - Typical CAN bus data acquisition adapter - Google Patents
Typical CAN bus data acquisition adapter Download PDFInfo
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- CN220965376U CN220965376U CN202322126495.XU CN202322126495U CN220965376U CN 220965376 U CN220965376 U CN 220965376U CN 202322126495 U CN202322126495 U CN 202322126495U CN 220965376 U CN220965376 U CN 220965376U
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to a data acquisition adapter, in particular to a typical CAN bus data acquisition adapter. The structure of the anti-skid electric power socket comprises a base plate, wherein a rear shell is arranged above the base plate, a front shell is arranged above the rear shell, a strong magnetic sheet is arranged at the bottom of the base plate, an anti-skid shock pad is arranged below the strong magnetic sheet, a PCB (printed circuit board) is arranged between the rear shell and the front shell, and the PCB is electrically connected with a power button, an aviation plug and a battery. The typical CAN bus data acquisition adapter has good sealing performance and good heat dissipation effect, and CAN acquire bus information by configuring different bus protocols to analyze information data; the device can be arranged on a tested vehicle for a long time or temporarily, and is used for collecting, storing and filling time marks of bus data according to corresponding configuration.
Description
Technical Field
The utility model relates to a data acquisition adapter, in particular to a typical CAN bus data acquisition adapter.
Background
CAN bus acquisition equipment that present market used CAN only gather one type motorcycle type at present, and CAN bus data acquisition adapter carries out data acquisition to different types motorcycle type through the general design of collection pencil, and CAN data acquisition pencil includes two parts: one acquisition device CAN gathers to the plug wire (one end is aviation plug, one end is general CAN data docking plug), and many vehicles equip CAN and gather pencil (one end is CAN data docking plug, and one end is the bus joint of different equipment), and wherein CAN data acquisition pencil docking plug is market goods shelves standard component product.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a typical CAN bus data acquisition adapter which has good sealing performance and good heat dissipation effect, and CAN acquire bus information by configuring different bus protocols to analyze information data; the device can be arranged on a tested vehicle for a long time or temporarily, and is used for collecting, storing and filling time marks of bus data according to corresponding configuration.
The technical scheme adopted by the utility model is as follows:
A typical CAN bus data acquisition adapter comprises a base plate, a rear shell is arranged above the base plate, a front shell is arranged above the rear shell, a strong magnetic sheet is arranged at the bottom of the base plate, an anti-slip shock pad is arranged below the strong magnetic sheet, a PCB (printed circuit board) is arranged between the rear shell and the front shell, and the PCB is electrically connected with a power button, an aviation plug and a battery.
Preferably, a sealing ring is arranged between the front shell and the rear shell.
Preferably, a compartment is arranged between the rear shell and the PCB.
Preferably, a boss is arranged in the rear shell and the PCB.
Preferably, the bottom of the rear shell is provided with a heat dissipation groove.
Preferably, the PCB board includes core board module, mainboard module and interface module, core board module include: 4-core 2.0GHz processor, 4GB DDR4 memory, 32GB EMMC; the main board module includes: the system comprises a power circuit, a memory and an RTC clock module; the interface module comprises: the interface module is used for connecting the aviation plug. The PCB is provided with a pressing plate.
The technical scheme provided by the utility model has the beneficial effects that:
The utility model adopts the electromechanical-electrical-wire integrated comprehensive design technology, realizes the arrangement of each functional module in a limited space, and solves the problems of electromagnetic compatibility, reliability, vibration resistance, sealing performance, salt fog resistance, heat dissipation and the like of the system. The machine is a mechanical structure, mainly comprising a machine case and a fixing mode, wherein the machine case adopts an all-aluminum alloy sealing structure, and the bonding surface is subjected to an electromagnetic leakage prevention treatment process so as to reduce electromagnetic leakage to the maximum extent and has an anti-rust sealing function. Various board cards are fixed in a mode of matching the pressing plate with the heat conducting glue so as to meet the requirements of vibration impact and heat dissipation. The electric board card is characterized in that various electric board cards comprehensively adopt the technologies of a multilayer circuit board, multipoint grounding, filtering and the like, and all devices on the board card are devices meeting the national army standard requirements, so that electromagnetic radiation and interference are prevented. The ground wire design problem is effectively solved by analyzing the interference characteristics and the anti-interference capability of the working level, the signal type and the like of each circuit unit in the product, using one layer in the multi-layer board as a power layer and selecting an appropriate layer as a ground layer. "wire" refers to various connecting wires and connectors. The connector adopts military electromagnetic interference prevention and salt mist prevention aviation plugs, various connecting wires adopt high-performance shielding wires, and the joint of the connecting wires and the connector adopts 360-degree full-closed connection treatment.
In the aspects of device model selection and manufacturing process, the requirement of explosion isolation is considered. The joint is sealed by a sealing rubber pad or a stuffing box by adopting an all-aluminum alloy sealing structure. The function keys adopt high-strength fully-sealed metal keys, other keys adopt a key film mode, are reliably bonded with the front panel, and the sealing rubber ring is additionally arranged in front of the rear cover plate and the front panel, so that sealing is tight. In the aspect of the connector, a series of aviation plugs meeting GJB599A specifications are selected, and the connection is ensured to be safe and reliable. In the aspect of power supply, the intrinsically safe power supply is adopted, and even if an external circuit is short-circuited under certain unexpected conditions, electric spark can not be generated, so that the safety is ensured to the maximum extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a typical CAN bus data acquisition adapter of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a typical CAN bus data acquisition adapter of this embodiment includes a base plate 1, a back shell 2 is installed above the base plate 1, a front shell 3 is installed above the back shell 2, a strong magnetic sheet 4 is installed at the bottom of the base plate 1, an anti-slip shock pad 5 is arranged below the strong magnetic sheet 4, a PCB board 6 is arranged between the back shell 2 and the front shell 3, and the PCB board 6 is electrically connected with a power button 7, an aviation plug 8 and a battery 9.
A sealing ring 10 is arranged between the front shell 3 and the rear shell 2 of the embodiment, so that dust prevention and water prevention between the front shell 3 and the rear shell 2 are ensured.
A compartment 11 is provided between the rear housing 2 and the PCB board 6 of the present embodiment.
The inside between backshell 2 and the PCB board 6 of this embodiment is provided with boss 12, and boss 12 can be used to set up the CPU, guarantees CPU radiating effect.
The bottom of the rear shell 2 of the embodiment is provided with the heat dissipation groove 13, so that the heat dissipation area is increased, and the weight reduction and heat dissipation effects can be achieved.
The PCB board is provided with a pressing plate 14.
The PCB board of this embodiment includes core board module, mainboard module and interface module, core board module include: 4-core 2.0GHz processor, 4GB DDR4 memory, 32GB EMMC; the main board module includes: the system comprises a power circuit, a memory and an RTC clock module; the interface module comprises: the interface module is used for connecting the aviation plug 8.
In this embodiment, the chassis (front chassis 3 and rear chassis 2) uses a bay design, especially a high-speed signal between the main CPU and the memory. The high-speed signal part of the core controller is isolated into an independent space by using a compartment design, so that EMC can be prevented from being coupled into a communication cable through space radiation, and radiation exceeding is caused; the joint points of the front cover and the rear cover of the shell and the joint of the aviation plug and the shell are other key control points of electromagnetic leakage, so that the use of the conductive adhesive tape is needed to be paid attention to during process design, the ground plane formed by the conductive adhesive tape and the shell is ensured, and EMC radiation signals are led into the ground through the shell.
The CAN bus data acquisition adapter selects military grade and vehicle gauge grade electronic components, and meets the low-temperature operation environment of the equipment at-43 ℃ through low-temperature screening of the electronic components and the whole machine.
The CAN bus data acquisition adapter mainly comprises a power supply module and a CPU processor, and the heat design scheme of the two parts needs to be considered mainly. The precondition for heat dissipation is to conduct the heat of the chip to benign thermal conductors such as aluminum, copper, and then dissipate it by air cooling or water cooling. Because the enclosure is sealed, it is not possible to use fans or natural air convection to dissipate heat. The water cooling device is more complex and is not suitable for use. Therefore, the final measures are mainly to reduce the power consumption and heat conduction to the shell, namely the heat conduction working mode.
The heat of the chip is first conducted to a heat conductor, such as metallic copper or aluminum. And heat conduction silicone grease is coated between the chip and the conductor, so that the heat conduction is increased, and the bonding is tighter. The heat is then directed to the housing using a tube or block of metal, with the appropriate amount of fin structure added to the housing. The heat dissipation groove is added on the rear shell, so that heat dissipation is accelerated. The heat is mainly led to the shell, and the shell accelerates heat dissipation. In addition to heat dissipation, overall heat reduction may be achieved by reducing system power consumption. For example, unnecessary functions are turned off when idle, CPU frequency is reduced when the task amount is reduced, and a network power supply is turned off when the network is not used. Besides the above thermal design criteria, we add thermal protection functions to the power supply and the CPU, when the surface temperature of the power supply module reaches 110 ℃, the power supply will enter a protection state, the power supply will turn off the output, after the temperature is reduced by 10 ℃, the module power supply will start restarting the process, the protection duration is possible from seconds to minutes depending on the surrounding heat dissipation environment, if the environment cannot be improved, the restarting process will always avoid thermal breakdown caused by overheat of the power supply module, thereby causing hardware damage.
The CPU frequency-modulation system has the function of dynamic frequency modulation during normal operation, and the working frequency of the CPU is dynamically adjusted according to the dynamic task condition of a user, so that the system power consumption is reduced, and the overheat of the CPU is avoided.
The external interface adopts a salt spray resistant connector, the shell plastic spraying material adopts a salt spray resistant material, and no gap spraying is realized. The circuit board is sprayed with three anti-salt mist agents; adding a cover layer on the USB and key parts in the shell and performing glue sealing treatment; the screw on the external casing adopts stainless steel screw, pay attention to and not scratch the outside coating when installing.
The CAN bus data acquisition adapter guarantees the protection performance through three measures of shell protection, encapsulation isolation and circuit paint film protection.
The front and back closing positions of the shell and the contact point structure of the aviation plug and the shell are specially treated, and proper O-shaped rubber rings are selected for sealing. So that water drops cannot pass inside the device.
The special insulating pouring sealant floods the circuit, and even if the shell is filled with water after the glue solution is solidified, the water can only stay on the surface of the sealing sealant, so that the circuit in the glue can not be influenced. In addition, the joint of the capacitive touch screen and the shell is isolated by filling and sealing, so that water drops are prevented from entering the equipment through gaps.
A layer of special waterproof material, namely 'three-proofing paint', is sprayed on the circuit board, the principle is similar to that of pouring sealant, but the paint film thickness is very thin, and the sealing glue is very thick.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A typical CAN bus data acquisition adapter comprises a base plate, a rear shell is arranged above the base plate, a front shell is arranged above the rear shell, and the adapter is characterized in that a strong magnetic sheet is arranged at the bottom of the base plate, an anti-slip shock pad is arranged below the strong magnetic sheet, a PCB (printed circuit board) is arranged between the rear shell and the front shell, and the PCB is electrically connected with a power button, an aviation plug and a battery.
2. The typical CAN bus data collecting adapter according to claim 1, wherein a sealing ring is arranged between the front shell and the rear shell.
3. The typical CAN bus data acquisition adapter of claim 1, wherein a compartment is provided between the back shell and the PCB.
4. The typical CAN bus data gathering adapter as set forth in claim 1, wherein a boss is disposed inside between the back shell and the PCB.
5. The typical CAN bus data acquisition adapter of claim 1, wherein the back shell bottom is provided with a heat sink channel.
6. The typical CAN bus data acquisition adapter of claim 1, wherein the PCB board comprises a core board module, a motherboard module, and an interface module, the core board module comprising: 4-core 2.0GHz processor, 4GB DDR4 memory, 32GB EMMC; the main board module includes: the system comprises a power circuit, a memory and an RTC clock module; the interface module comprises: the interface module is used for connecting the aviation plug.
7. The typical CAN bus data acquisition adapter of claim 1, wherein the PCB is provided with a platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126495.XU CN220965376U (en) | 2023-08-08 | 2023-08-08 | Typical CAN bus data acquisition adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126495.XU CN220965376U (en) | 2023-08-08 | 2023-08-08 | Typical CAN bus data acquisition adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220965376U true CN220965376U (en) | 2024-05-14 |
Family
ID=91013654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322126495.XU Active CN220965376U (en) | 2023-08-08 | 2023-08-08 | Typical CAN bus data acquisition adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220965376U (en) |
-
2023
- 2023-08-08 CN CN202322126495.XU patent/CN220965376U/en active Active
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| GR01 | Patent grant | ||
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