CN211652934U

CN211652934U - Extensible combined type electrical box

Info

Publication number: CN211652934U
Application number: CN201921563656.9U
Authority: CN
Inventors: 陈标; 郝江脉; 张荣林; 张�杰
Original assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Current assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-10-09
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses an extensible combination formula electrical apparatus box. One end of the switch module is connected to the anode of the storage battery through the air switch and the emergency stop switch in sequence, the other end of the switch module is connected with a pin1 of the output adjustable conversion module, a pin2 of the adjustable conversion module is connected to the cathode of the storage battery, and a pin3 and a pin4 of the adjustable conversion module D1 are respectively connected to the anode and the cathode of the component to be measured; the input end of the Pin connecting piece is connected with a vehicle body wiring harness of a component to be tested, the output end of the Pin connecting piece is connected with an electrical appliance interface, the input end and the output end of the Pin connecting piece are connected through a PCB connecting plate, a plurality of expandable terminals are processed on the PCB Pin connecting plate, the input end and the output end of each Pin are communicated through respective expandable terminals, a hole is formed in the position of each expandable terminal of the electrical appliance box shell to serve as an expandable terminal socket, and the expandable combined electrical appliance box is formed. The invention realizes the test, adjustment and calibration of various electrical signals of mechanical and electrical integrated components in vehicle engineering.

Description

Extensible combined type electrical box

Technical Field

The invention relates to an extensible combined electrical box in the real-vehicle development and calibration work of an electromechanical integrated product in the automobile part industry, which is used for carrying out failure or monitoring test on a power supply signal, a wheel speed signal and a CAN signal in the development and calibration work, and is combined with a DC/DC output adjustable module to conveniently realize power supply on a load or test equipment.

Background

With the development of science and technology and the progress of the times, the mechanical industry changes rapidly, and the industrial X.0 time is coming to us rapidly. In particular, in the field of automotive engineering, the progress of mechatronics is changing day by day. The traditional mechanical parts with large volume, heavy mass and complex installation are gradually replaced by new materials and high integration level mechatronic parts. In order to fully exert the efficacy and the characteristics of the novel mechanical-electrical integrated component, the vehicle is safer to run, easier to drive and more comfortable to ride. With this, higher demands are also made on testing, mounting, debugging, and the like of highly integrated mechatronic components. In particular to an automobile chassis brake system, which relates to the real-vehicle development, calibration and test of automobile parts such as ABS, TPMS, ESC, IBOOSTER, IEHB and the like, and the pertinence test of certain signals is required. The traditional method is that in the normal wiring harness of the original vehicle, the test wiring harness is connected in parallel after the wiring harness is damaged, test equipment is carried to carry out related monitoring or testing, if more required test signals or the same signals need to be collected by a plurality of devices, the connection lines are messy, the signals are not easy to distinguish, the required test wiring harness is mistaken, and the serious or even the extreme problems of signal disconnection or short circuit and the like occur. Therefore, there is a need for an expandable modular electrical enclosure that is fast, efficient, and easy to test, and that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an extensible combined electrical box which is used for solving the problems that an automobile cannot be safely, effectively, conveniently and quickly tested in vehicle engineering, various electric signals can be monitored and tested in development, calibration and test work, and power is supplied to various test devices.

The invention adopts the following technical scheme:

the invention comprises an electrical box shell and an internal module positioned in the electrical box, wherein the internal module comprises a switch module U1, an output adjustable conversion (DC/DC) module D1 and a Pin connecting piece D2, one end of the switch module U1 is connected to the anode of a storage battery through an air switch FUSE and an emergency stop switch SW1 in sequence, the other end of the switch module U1 is connected with a Pin1 Pin of an output adjustable conversion module D1, two sides of the adjustable conversion module D1 respectively comprise two Pin ends, the two Pin ends on one side are a Pin1 Pin (Vcc Pin) and a Pin2 Pin (Gnd1 Pin), the two Pin ends on the other side are a Pin3 Pin (Vout Pin) and a Pin4 Pin (Gnd2 Pin), a Pin2 Pin of the adjustable conversion module D1 is connected to the cathode of the storage battery, and a Pin3 Pin and a Pin4 Pin of the adjustable conversion module D1 are connected to the anode and the cathode of a component to be tested respectively.

The input end of the Pin connecting piece D2 is connected with a vehicle body wire harness of the component to be tested, the output end of the Pin connecting piece D2 is connected with an electrical appliance interface of the component to be tested, the input end and the output end of the Pin connecting piece D2 are connected through a PCB connecting plate, a plurality of expandable terminals SW are processed on the PCB Pin connecting plate, the number of the expandable terminals SW is the same as that of the pins of the Pin connecting piece D2, the expandable terminals SW are in one-to-one correspondence, the input port and the corresponding output port of each Pin are communicated, and a hole is formed in the position of the expandable terminal SW of the electrical appliance box shell to serve as an expandable.

One end of the switch module U1 mainly comprises an indication switch SW2 and an indication LAMP LAMP, one end of the indication switch SW2 is connected to the storage battery through an air switch FUSE and an emergency stop switch SW1, the other end of the indication switch SW2 is connected with one end of the indication LAMP LAMP in series, the other end of the indication LAMP LAMP is connected with the input end of the output adjustable conversion module D1, and a direct-current voltage interface is connected between the indication LAMP LAMP and the input end of the output adjustable conversion module D1 in parallel.

The Pin connector D2 adopts a 50Pin connector, and the number of the expandable terminals SW is 50, which are respectively represented as SW3-SW 52.

The lead used for communicating between the input port and the output port of any Pin in the pins 47-50 is a lead B, the lead used for communicating between the input port and the output port of any Pin in the pins 47-50 is a lead C, and the lead B and the lead C are different in wire diameter, color and temperature resistance.

The shell of the electrical box is made of insulating materials, so that the phenomenon that electrical parts are damaged due to various electrical failures is avoided.

The invention has the following beneficial effects:

the invention realizes the test, adjustment and calibration of various electrical signals of mechanical and electrical integrated components in vehicle engineering, expands the integration of an output adjustable conversion (DC/DC) module, and realizes the integration of various tests of electrical signal tests and the supply of power supply by test equipment.

The Pin connecting piece can conveniently and quickly carry out various tests on tested signals, accurately and effectively realize the measurement of the signals, avoid the damage to the wiring harness of the whole vehicle, improve the convenience, reliability, safety and repeatability of signal testing, fundamentally avoid the space problem, the temperature problem and the vehicle motion problem of the wiring harness arrangement of the real vehicle influenced by the signal testing, ensure the safety of testers and test vehicles and improve the working efficiency.

Drawings

FIG. 1 is a schematic diagram of the apparatus;

fig. 2 is a schematic diagram of a 50Pin extendable terminal PCB Pin connector board.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 and 2, the utility model discloses a wire (wire A, wire B, wire C and the interior connecting wire of electrical apparatus box), scram switch SW1, air switch FUSE, switch U1 of tape light, DC/DC output adjustable conversion module D1, 50Pin connecting piece D2, PCB Pin connecting plate, expanded terminal SW3-SW52, electrical apparatus box U2, insulating sheath of weaving. Two Pin ends of one side of the adjustable conversion module D1 are a Pin1 Pin (Vcc Pin) and a Pin2 Pin (Gnd1 Pin), respectively, and two Pin ends of the other side are a Pin3 Pin (Vout Pin) and a Pin4 Pin (Gnd2 Pin), respectively.

The wire diameter of the lead A is not less than 3.0mm2, the length is not less than 2 m generally, the lead A comprises two leads, the outer insulating layer of the lead A1 is red, and the lead A is used for being sequentially connected with the two ends of a storage battery anode 2, an emergency stop switch SW1, an air switch FUSE, a switch U1 with an indicator light, and a port 1 and a port 3 of a DC/DC output adjustable conversion module D1 in series; the outer insulating layer of the lead A2 is black, and is used for connecting the negative pole 1 of the storage battery of the automobile in series with the port 2 and the port 4 of the DC/DC output adjustable conversion module D1 in the expandable combined electrical box.

The two wires A1 and A2 are connected to the interior of the automobile according to the actual installation position of the automobile storage battery, and the emergency stop switch SW1 is reasonably arranged according to the actual space position in the automobile, so that a driver or passengers can conveniently operate the emergency stop switch SW in an emergency, and the emergency stop switch SW is used for disconnecting the power supply of the storage battery and the electric loads on the extensible combined type electric appliance box. The wires A1 and A2 are connected into the electric appliance box, the air switch FUSE can be selected according to the rated current of the actual electric equipment, the electric equipment is protected, the overload work of a load is avoided, and the switch U1 with a red indicator lamp is connected in series after the electric equipment is used for visually checking whether the input voltage works normally. And then, the leads A1 and A2 are respectively connected with input/output

end power ports

1 and 3 and

ground wire ports

2 and 4 of a DC/DC output adjustable conversion module D1 fixed in the combined electrical box, and meanwhile, one path of direct current voltage interface is connected in parallel with the input end 1 of the DC/DC output adjustable conversion module D1 and is fixed on the combined electrical box and used for carrying various rated direct current voltage loads.

The Pin3 and the Pin4 of the adjustable conversion module D1 are reserved ports, and provide a power supply for an external dc load, for example, output a full-range dc voltage of 1.5V to 12V, according to the rated voltage and the rated power of the adjustable conversion module. The output ends 3 and 4 of the DC/DC output adjustable conversion module D1 are connected with connecting terminals fixed on an expandable combined electrical box, so that the output voltage of the DC/DC output adjustable conversion module D1 can be conveniently adjusted to carry a load. One side of the expandable combined electrical box is fixed with a 50Pin input and output connector D2, and a PCB Pin connecting plate is assembled in the 50Pin connector D2. The 1 and 2 middle of the input and output connector D2 are connected in series through 50Pin PCB pins, and in each Pin, the respective strings are connectedAn expandable terminal SW (expandable terminal, i.e., a connecting member, for turning on and off a signal line, which may be understood as a switch) is provided. Wherein the input end 2 of the 50Pin connecting piece D2 is connected with the body wiring harness of the developed part in series, and the output end 1 is connected with the electrical interface of the developed part through the 50Pin automobile wiring harness. The connecting piece is connected with the PCB pins through the leads B and C with different specifications. Wherein the wire diameter of the conducting wire B is required to be not less than 0.5mm²The wire diameter of the conducting wire C is required to be not less than 2.5mm²The PCB pin connecting board is singly welded with 50 pairs of expandable terminal bases SW3-SW52 and fixed in an expandable combined electrical box, the surface of the combined electrical box is provided with a hole, 50 pairs of expandable terminal sockets are exposed, and arbitrary signal loops are formed among the SW3-SW52 nodes through series or parallel connection terminals for use.

In specific implementation, the conducting wires used for each Pin communication are not limited to two or more conducting wires B and C with different wire diameters, colors, temperature resistance and the like and are connected with pins of the PCB. Wherein, the wire of the wire B (Pin1-Pin46) is thinner than the wire C (Pin47-Pin 50). The wires are automobile-grade wires, so that normal conduction of various electric signals in high-temperature and high-cold environments is ensured; the specification of the conducting wire is distinguished and quickly identified by using different colors and different wire diameters according to different electric signal characteristics, and after the conducting wire is twisted, an insulating braided sheath is coated outside the conducting wire for protection.

The output adjustable conversion (DC/DC) module D1 realizes the convenient long-time uninterrupted power supply for the DC test equipment, and is used for effectively ensuring the long-term normal work of the equipment, avoiding the problems that the equipment cannot carry out DC power supply or the time of a power supply source is limited (such as the equipment is supplied with power by using a self-contained battery), or the test equipment cannot work, and the equipment needs to be temporarily supplied with power from a real vehicle storage battery of a tested, adjusted and calibrated sample vehicle, even the voltage of the real vehicle storage battery is different from the voltage of the used test equipment, and the like, thereby influencing the normal work of the test, adjustment or calibration and the like.

The vehicle body wire harness can be arranged at any spatial position of the whole vehicle according to actual requirements, such as an engine compartment, a trunk, a cab, a chassis and the like. Meanwhile, the requirements for wiring harnesses are different in different spaces of the whole vehicle, and if an engine compartment generally requires temperature resistance of-40 ℃ to 120 ℃, the temperature resistance of the cab is-40 ℃ to 80 ℃. Meanwhile, the state of the vehicle is divided into static state and dynamic state.

Therefore, if according to the original traditional operation method, firstly the tested wire harness is searched in different spatial positions of the real vehicle wire harness arrangement, after the tested wire harness of the vehicle is damaged, the tested wire harness or the test equipment is connected in series or in parallel according to the requirement of the tested signal to carry out related monitoring or testing, if more required test signals or the same signal is required to be tested by a plurality of equipment, the connecting circuit is inevitable and complicated, the required test signal line cannot be distinguished, extreme problems such as disconnection or short circuit of the tested signal can seriously occur, even the feared condition of wire harness ignition or vehicle burning is caused, and therefore, a quick, effective and convenient test detection means is needed to carry out related work. The Pin connecting piece D2 can expand the wiring harness, can conveniently and quickly carry out various tests on the tested signals, and accurately and effectively realize signal measurement.

The utility model discloses a use as follows:

s1: the expandable combined electrical box is placed at a proper position of the development sample vehicle, is generally placed on the floor of the front cabin of the copilot, and can be fixed if necessary.

S2: and fixedly placing the emergency stop button as close to the driving position as possible according to the actual space condition of the sample car.

S3: and pressing the emergency stop button to ensure that the emergency stop button is disconnected from the power supply of the extensible combined electrical box.

S4: the lead bundle A is placed along the edge of an engine compartment through the outer side edge of a window or a door of a passenger compartment, the lead A is used for connecting and fixing the positive electrode and the negative electrode of a storage battery, and the lead B, C is used for fixedly connecting an assembly connecting port D2-1 of a developed electromechanical integrated component in series with an expandable combined electrical box interface D2-2.

S5: a PCB Pin connecting plate is assembled in the 50Pin connector D2 and is fixed in an expandable combined electrical box.

S6: the input terminal 2 of the 50Pin connector D2 is connected to the body terminal harness of the mechatronic component to be developed by a JB _50Pin harness connector, and the output terminal 1 of the 50Pin connector D2 is connected to the mechatronic component interface to be developed by a JA _50Pin harness connector.

S7: if power needs to be supplied to the test equipment, the emergency stop switches are sequentially rotated (the emergency stop switches are kept in a conducting state) under the condition of no load, the power switches with the indicating lamps are turned on (the switch conducting state), and the emergency stop switches are independently connected to the rated direct-current power supply wiring terminals or the output voltage of the DC/DC output adjustable conversion module is adjusted and connected according to the power supply requirements of the equipment.

S8: connecting terminals are connected in series or in parallel on the expandable end node for a plurality of times according to actual needs:

the series connection is specifically implemented as follows: and sequentially accessing the elements in the expandable end node one by one to form a path. If one of the powered devices in the line is damaged or one of the devices is broken, the entire circuit will become open. Parallel connection: all elements in the circuit are connected in parallel in an end-to-end mode and in an end-to-end mode to form a plurality of branches, and even if one branch is disconnected, other branches cannot be affected), so that data acquisition or checking of the same signal or various testing or monitoring devices is achieved.

The parallel connection method comprises the following specific steps: for example, if data and signals are normal in real-time online synchronous test of a plurality of devices (multimeters, oscilloscopes, sampling circuits and the like) on a Pin1 signal, various test devices and test tools can be connected in parallel under the condition that the tested signal works normally, so that various external devices of the signal can be connected and tested. Series connection: for example, the current value of the Pin1 signal loop needs to be measured and debugged, and the adjustable resistor and the ammeter can be simultaneously and sequentially connected to the Pin1 signal node, so that the adjustable resistor can be adjusted online in real time, and the reading of the ammeter can be observed, thereby checking, verifying and adjusting the actually required current of the loop.

Therefore, the upper part of the expandable terminal can be expanded for several times, and signals to be tested can be superposed for several times in a targeted manner according to the requirements of calibration and signal debugging, so that various debugging and monitoring devices can conveniently acquire signals.

Claims

1. An extensible combined electrical box, characterized in that: the device comprises an electric appliance box shell and an internal module located in the electric appliance box, wherein the internal module comprises a switch module U1, an output adjustable conversion module D1 and a Pin connecting piece D2, one end of the switch module U1 is connected to the anode of a storage battery through an air switch FUSE and an emergency stop switch SW1 in sequence, the other end of the switch module U1 is connected with a Pin1 Pin of an output adjustable conversion module D1, two sides of the adjustable conversion module D1 respectively comprise two Pin ends, the two Pin ends on one side are a Pin1 Pin and a Pin2 Pin respectively, the two Pin ends on the other side are a Pin3 Pin and a Pin4 Pin respectively, the Pin2 Pin of the adjustable conversion module D1 is connected to the cathode of the storage battery, and the Pin3 Pin and the Pin4 Pin of the adjustable conversion module D1 are connected to the anode and the cathode of a component to be detected respectively;

2. The expandable modular electrical box of claim 1, wherein: one end of the switch module U1 mainly comprises an indication switch SW2 and an indication LAMP LAMP, one end of the indication switch SW2 is connected to the storage battery through an air switch FUSE and an emergency stop switch SW1, the other end of the indication switch SW2 is connected with one end of the indication LAMP LAMP in series, the other end of the indication LAMP LAMP is connected with the input end of the output adjustable conversion module D1, and a direct-current voltage interface is connected between the indication LAMP LAMP and the input end of the output adjustable conversion module D1 in parallel.

3. The expandable modular electrical box of claim 1, wherein:

4. An expandable modular electrical enclosure as claimed in claim 3, wherein: the lead used for communicating between the input port and the output port of any Pin in the pins 47-50 is a lead B, the lead used for communicating between the input port and the output port of any Pin in the pins 47-50 is a lead C, and the lead B and the lead C are different in wire diameter, color and temperature resistance.

5. The expandable modular electrical box of claim 1, wherein: the shell of the electrical box is made of insulating materials.