CN106324480B - Multifunctional integrated circuit debugging instrument - Google Patents
Multifunctional integrated circuit debugging instrument Download PDFInfo
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- CN106324480B CN106324480B CN201610706961.3A CN201610706961A CN106324480B CN 106324480 B CN106324480 B CN 106324480B CN 201610706961 A CN201610706961 A CN 201610706961A CN 106324480 B CN106324480 B CN 106324480B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000003032 molecular docking Methods 0.000 claims description 13
- 238000000605 extraction Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 235000014676 Phragmites communis Nutrition 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 10
- 238000005476 soldering Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
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- 229910000831 Steel Inorganic materials 0.000 claims 1
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- 238000000034 method Methods 0.000 abstract description 10
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 1
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
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Abstract
The multifunctional integrated circuit debugging instrument comprises a control host, a circuit board test fixture and a test signal output observation unit; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit; the control host comprises a cuboid box body, a power driving module, a switching power supply control module, a load control module and a welder constant-temperature heating module are arranged in the box body, and a radiator in contact with the power driving module is arranged at the rear part in the box body; the load control module is connected with the power driving module and is respectively connected with the switching power supply control module and the welder constant-temperature heating module. The invention has simple structure and simple and convenient operation, integrates the functions of adjustable stabilized voltage power supply, oscilloscope, electronic load instrument and other instruments, has various, concentrated and specific functions, is simple and easy to implement in the using process, has reliable connection and accurate test, and greatly improves the efficiency of debugging the circuit board.
Description
Technical Field
The invention belongs to the technical field of electronic circuits, and particularly relates to a multifunctional comprehensive circuit debugging instrument.
Background
The signal change and the function of the electronic circuit have certain abstract characteristics, and the working state and the characteristics of the circuit are difficult to know by a direct observation means. Therefore, in the application development and design of electronic products and equipment, a large amount of instruments and equipment are needed to build a test environment and acquire circuit states.
The circuit debugging refers to the process of repeatedly and continuously modifying the verification by searching for reasons aiming at the problems that whether the stage of the circuit development reaches the expected performance target needs to be verified at different stages.
There are many kinds of commonly used circuit debugging instruments, including adjustable voltage-stabilized power supply, oscilloscope, electronic load meter and universal test board capable of repeatedly welding and modifying circuit. Because of the various models of the instruments, the functions are not centralized and are not specific. Therefore, a lot of troubles are caused in the using process, and the debugging progress and efficiency of the circuit are seriously influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the multifunctional integrated circuit debugging instrument which is easy to control, convenient to adjust, various and exclusive in function, good in circuit debugging progress and high in debugging efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: the multifunctional integrated circuit debugging instrument comprises a control host, a circuit board test fixture and a test signal output observation unit; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit;
the control host comprises a cuboid box body, a power driving module, a switching power supply control module, a load control module and a welder constant-temperature heating module are arranged in the box body, a 220V power line extending out of the box body backwards is connected to the rear side of the power driving module, and a radiator in contact with the power driving module is arranged at the rear part in the box body; the load control module is connected with the power driving module and is respectively connected with the switching power supply control module and the welder constant-temperature heating module;
an output voltage digital display screen, an output current digital display screen, a load voltage digital display screen, a load current digital display screen, an output voltage adjusting knob, an output current adjusting knob, a load intensity adjusting knob, a power voltage output anode, a power voltage output cathode, a load access end anode, a load access end cathode, a load intensity gear selecting button and a welding iron interface are arranged on the front side panel of the box body, and an interface electrode needle is arranged in the welding iron interface;
the internal circuit of the switch power supply control module is respectively connected with a power supply voltage output positive electrode, a power supply voltage output negative electrode, an output voltage adjusting knob, an output current adjusting knob, an output voltage digital display screen and an output current digital display screen;
the internal circuit of the load control module is respectively connected with the anode of the load access end, the cathode of the load access end, a load voltage digital display screen, a load current digital display screen and a load intensity gear selection button;
the soldering device constant temperature heating module is connected with an interface electrode needle in the soldering iron interface.
The radiator includes that the central line all follows the foreign side barrel and the interior side barrel that the vertical direction set up, the equal shutoff in upper and lower both ends of foreign side barrel and interior side barrel, the rear side of foreign side barrel and interior side barrel is all uncovered, it is the water conservancy diversion passageway of channel bar type to form the cross-section between foreign side barrel and the interior side barrel, the equal fixed connection of foreign side barrel rear side and interior side barrel rear side is on box rear side inboard wall, the air current guide slot has all been seted up on foreign side barrel inner wall and the interior side barrel outer wall, set up air outlet and the air intake that communicates respectively with the both sides of water conservancy diversion passageway on the box rear side panel, air outlet department is equipped with the grid, set up the air supply fan who is located the air intake rear side and bloies to the air intake on the box rear side panel.
The circuit board test fixture comprises a horizontally arranged base, a test positioning notch is formed in the upper surface of the base, a back plate and two vertical rods located on the front side of the back plate are vertically arranged on the base, the upper ends of the vertical rods are fixedly connected with the front side of the back plate through a positioning plate, a moving platform is arranged on the two vertical rods in a penetrating and sliding mode, a connecting frame is fixedly arranged on the upper portion of the front side of the back plate, a pressure rod is arranged on the upper portion of the front side of the connecting frame, a handle sleeve is arranged on the upper portion of the pressure rod, a shaft sleeve is arranged on the lower portion of the front side of the connecting frame, a push-pull rod is arranged in the shaft sleeve in a penetrating and sliding mode, the lower end of the push-pull rod is vertically fixed on the rear side of the upper surface of the moving platform, the upper end of the push-pull rod is connected with the lower portion of the pressure rod through a connecting plate, and two ends of the connecting plate are respectively hinged with the upper end of the push-pull rod and the lower portion of the pressure rod;
the base is provided with two power supply wiring terminals and two load wiring terminals, four threading holes which vertically correspond to the bottoms of the two power supply wiring terminals and the two load wiring terminals are formed in the base, a power supply voltage output positive electrode and a power supply voltage output negative electrode are respectively connected with one power supply wiring terminal through first wires which penetrate through the two threading holes, and a load access end positive electrode and a load access end negative electrode are respectively connected with one load wiring terminal through second wires which penetrate through the other two threading holes;
an insulating electrode mounting plate is arranged on the upper surface of the moving platform, a group of left lotus flower head needle type electrode and right lotus flower head needle type electrode are respectively arranged on the left side and the right side of the insulating electrode mounting plate, the lower ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode both protrude out of the lower surface of the moving platform, the upper ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode are respectively connected with a flexible left electrode leading-out flat cable and a flexible right electrode leading-out flat cable, and the lower ends of the left electrode leading-out flat cable and the right electrode leading-out flat cable are both connected with a power supply binding post and a load binding post;
the right side of the base is provided with a signal board electric connection socket which is respectively connected with the left electrode lead-out flat cable and the right electrode lead-out flat cable through signal lead-out wires.
The base is provided with a vent hole positioned below the test positioning notch.
The structure of the left lotus flower head needle type electrode is the same as that of the right lotus flower head needle type electrode, the right lotus flower head needle type electrode comprises a cylindrical electrode body, an extraction electrode connected with a right electrode extraction flat cable is arranged at the upper end of the electrode body, an extraction electrode connected with the right electrode extraction flat cable is arranged at the upper end of the electrode body, a cylindrical groove is formed in the lower end of the electrode body along the axis direction, a movable needle head is inserted into the cylindrical groove, a spring is arranged between the upper end of the movable needle head and the bottom of the cylindrical groove, and the lower end of the movable needle head is a lotus flower head-shaped electric contact surface.
The test signal output observation unit comprises a signal board connecting flat cable and a test signal observation board, the left end of the signal board connecting flat cable is provided with a signal board electric connection plug which is inserted in the signal board electric connection socket, the right end of the signal board connecting flat cable is provided with a dock type expansion connection socket, the left end of the test signal observation board is provided with a dock type expansion connection plug-in unit, the dock type expansion connection plug-in unit is inserted in the dock type expansion connection socket, and the upper surface of the test signal observation board is provided with a row of double-reed socket electrodes.
The docking type expansion connecting plug-in comprises a plug board, a plurality of positioning clamping grooves are uniformly arranged at intervals along the front-back direction at the edge of the left end of the plug board, a positioning hole is respectively arranged on the plug board at the front side and the back side of the rear part of each positioning clamping groove, and a gold-plated contact electrode plate is arranged right behind each positioning hole on the plug board;
the dock expansion connection socket comprises a socket base fixedly arranged on the upper surface of the right end of a signal board connection flat cable, the front end and the rear end of the left side of the socket base are respectively provided with a positioning plate, a cover plate is arranged between the two positioning plates, the front side and the rear side of the cover plate are respectively provided with a positioning groove matched with the positioning plates, a buckle plate is rotatably connected between the two positioning plates through a hinge shaft, a wrench is arranged on the right side of the middle part of the buckle plate, the hinge shaft is fixedly connected with the buckle plate, the outer contour of the cross section of the hinge shaft is formed by connecting a circular part and a straight line part, the lower surface of the buckle plate is provided with an elastic convex edge strip used for pressing the upper surface of the cover plate, a slot with an opening at the right end is formed between the cover plate and the socket base, the slot is internally provided with reed contact electrodes matched with gold-plated contact electrode plates in a one-to-one correspondence manner, the right ends of the reed contact electrodes are upwards tilted and form insertion holes with the socket base, and the left sides of the upper surface of the socket base are provided with positioning clamping grooves in a one-to-one-to-correspondence manner, the lower surface of the cover plate is provided with arc-shaped convex blocks which are in one-to-one corresponding clamping fit with the positioning holes, and the signal plate connecting flat cable is provided with electrode leading-out needles which are correspondingly linked with each reed contact electrode.
By adopting the technical scheme, the control host is the input/output device integrated with three necessary functions. An adjustable voltage of 0-30V can be output. The electronic load can simulate a resistive load of 0-10 kilo-ohms, and the load strength gear selection button is adjustable in three gears, namely 0-200K, 100-2K and 2K-10K.
The load control module controls the load current and voltage to a given value through the load control module, then the load current and the voltage are led into the power driving module, the power driving module (a power tube and a load) array generates high power and can naturally generate high heat, and the heat is transferred to the outside of the box body through the tightly attached radiator. And the stable operation of each part of circuit is ensured. The air supply fan blows air into the flow guide channel of the radiator, and the air flow brings out heat emitted by the outer cylinder from the air outlet. The air flow guide grooves are formed in the inner wall of the outer square barrel and the outer wall of the inner square barrel, so that a good air guiding effect is achieved, the heat dissipation area of the radiator can be increased, and the heat dissipation effect is improved.
The output voltage adjusting knob and the output current adjusting knob are connected to an adjusting circuit of the switch power supply control module to adjust the output voltage and current. The output voltage and current have three effective digits, and the digits are displayed on an output voltage digital display screen and an output current digital display screen respectively.
The load intensity is adjusted by a load intensity gear selection button connected to an internal input circuit of the load control module. The voltage and current strength actually applied to the internal load circuit are displayed by three digits on a load voltage digital display screen and a load current digital display screen respectively.
The welding iron interface is used for connecting a heating power supply connector of the circuit quick welder.
When the circuit board is tested, the standard board of the test circuit building platform is horizontally placed in the test positioning groove, the handle sleeve is held by hand to press the pressure lever downwards, the pressure lever drives the push-pull rod to move downwards along the shaft sleeve through the connecting plate, the push-pull rod drives the moving platform to move downwards along the two vertical rods, a group of left lotus head needle type electrodes and a group of right lotus head needle type electrodes which are installed on the moving platform also move downwards along with the push-pull rod, the movable needle heads at the lower ends of the left lotus head needle type electrodes and the group of right lotus head needle type electrodes are pressed on the gold-plated electrode sheets on the standard board of the test circuit building platform, so that related signals are connected to the left lotus head needle type electrodes and the group of right lotus head needle type electrodes on the moving platform on the standard board of the test circuit building platform, are respectively led into the base through the left electrode lead-out flat cable and the right electrode lead-out flat cable, and are electrically connected with the plug socket on the signal board on the side of the base, the power supply wiring terminal is connected with the load wiring terminal. The standard board of the test circuit building platform is an independent universal test circuit board, a circuit to be debugged can be built on the standard board, and all input and output signals and observation signals are led out through the gold-plated electrode plates distributed on the periphery of the standard board.
The springs in the left lotus head needle type electrode and the right lotus head needle type electrode prop against the movable needle head, so that the movable needle head moves up and down and is tightly pressed on a gold-plated electrode sheet of a standard plate of the test circuit building platform. The design mode that the lower end of the movable needle head is the lotus head-shaped electric contact surface is larger than the contact area of the traditional single needle head, and the connection is more reliable in the structural mode. The ventilation holes are used for building a platform standard plate for a test circuit in the test process to dissipate heat.
Adopt the gliding structure of hand multi-bar direction, the operation of being convenient for, safe and reliable, this circuit board test fixture has solved the unfavorable condition that often meets among the circuit debugging process, frequent dismantlement when test circuit building platform standard plate need be revised promptly, and the signal is repeatedly connected and is corresponded, obvious reduce efficiency. In test circuit built platform standard plate level was placed the test positioning notch, can dismantle test circuit built platform standard plate fast, to frequently using the welding mode to modify device and the circuit connection relation on test circuit built platform standard plate among the debugging process, very big improvement efficiency to reduce the unreliability of test circuit board and external instrument signal connection, reduce the signal interference that appears under this kind of circumstances, lead to producing adverse effect to the debugging.
15 observation signals of the double-reed interface electrode which is externally connected to the test signal observation plate are led out through a dock expansion plate plug and are connected to a dock expansion connection socket of a signal plate connection flat cable, and then the signal plate electric connection plug is connected to a signal plate electric connection socket of the circuit board test fixture.
The test circuit builds a platform standard board and a test signal observation board, and the two parts are circuit boards which are designed in a matched manner and are specially used for debugging. The standard board of the test circuit building platform is designed for building a test circuit, and a power supply and a signal are led out by contacting a left lotus-headed needle type electrode and a right lotus-headed needle type electrode through gold-plated electrode plates which are arranged on the board in a certain sequence. The test signal observation board is used for observing the internal signal state of the built test circuit by using external instruments (oscilloscopes, voltmeters and the like), and instrument probes and measuring gauge needles can be conveniently and directly connected to a row of double-reed bayonet electrodes.
Insert the slot that forms between apron and the socket base through the picture peg between dock expansion connection plug-in components and the dock expansion connection socket, gilt contact electrode piece and reed contact electrode contact on the picture peg, and through positioning slot and the cooperation of locator card platform, arc lug and locating hole cooperation, reach good location contact, in order to make gilt contact electrode piece and reed contact electrode contact inseparable, it rotates through spanner drive buckle to have designed in addition, downwards through the protruding arris strip of elasticity downwards pressing apron, because the articulated shaft rotation is driven in the buckle rotation, the outline of the cross section of articulated shaft is formed by connecting circular and straightway, when can make buckle rotation level slightly inclined downwards pressing apron, the straightway of articulated shaft plays the effect of preventing the articulated shaft upset, thereby play good pushing effect. When the dock expansion connecting plug-in is required to be separated from the dock expansion connecting socket, the wrench is pulled upwards, the buckle plate is turned upwards, the arc-shaped convex block on the lower surface of the cover plate is separated from the positioning hole, and therefore the dock expansion connecting plug-in can be pulled out. By adopting the connecting structure, the connection is not only tight and reliable, but also can bear certain tensile force, and the connection interruption caused by external force or dead weight is avoided.
The invention has simple structure and simple and convenient operation, integrates the functions of adjustable stabilized voltage power supply, oscilloscope, electronic load instrument and other instruments, has various, concentrated and specific functions, is simple and easy to implement in the using process, has reliable connection and accurate test, and greatly improves the efficiency of debugging the circuit board.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a front side panel structure of the control host in FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is an enlarged view of the circuit board testing fixture of FIG. 1;
FIG. 6 is a bottom view of the circuit board test fixture;
FIG. 7 is an axial cross-sectional view of the right lotus-headed needle electrode of FIG. 5;
fig. 8 is a plan view of the test signal output observation unit;
FIG. 9 is an enlarged view of the docking configuration of the docking expansion plug and docking expansion socket;
fig. 10 is an enlarged view at a in fig. 1.
Detailed Description
As shown in fig. 1 to 10, the multifunctional integrated circuit debugger of the present invention includes a control host 50, a circuit board test fixture 51, and a test signal output observation unit 52; the test signal output terminal of the circuit board test jig 51 is connected to the signal input terminal of the test signal output observation unit 52.
The control host 50 comprises a box body 53 in a cuboid shape, a power driving module 54, a switching power supply control module 55, a load control module 56 and a welder constant-temperature heating module 57 are arranged in the box body 53, a 220V power line 58 extending backwards out of the box body 53 is connected to the rear side of the power driving module 54, and a radiator 63 in contact with the power driving module 54 is arranged at the rear part in the box body 53; the load control module 56 is connected to the power driver module 54, and the load control module 56 is connected to the switching power supply control module 55 and the welder constant temperature heating module 57, respectively.
An output voltage digital display screen 59, an output current digital display screen 60, a load voltage digital display screen 61, a load current digital display screen 62, an output voltage adjusting knob 64, an output current adjusting knob 65, a load intensity adjusting knob 66, a power voltage output positive electrode 67, a power voltage output negative electrode 68, a load access end positive electrode 69, a load access end negative electrode 70, a load intensity gear selecting button 71 and a welding iron interface 72 are arranged on the front side panel of the box body 53, and an interface electrode needle is arranged in the welding iron interface 72.
The internal circuit of the switching power supply control module 55 is connected with a power supply voltage output positive electrode 67, a power supply voltage output negative electrode 68, an output voltage adjusting knob 64, an output current adjusting knob 65, an output voltage digital display screen 59 and an output current digital display screen 60 respectively.
The internal circuit of the load control module 56 is connected to the load input terminal positive electrode 69, the load input terminal negative electrode 70, the load voltage digital display screen 61, the load current digital display screen 62 and the load intensity gear selection button 71 respectively.
The soldering iron thermostatic heating module 57 is connected to an interface electrode pin in the soldering iron interface 72.
The circuit board test fixture 51 comprises a horizontally arranged base 78, a test positioning notch is formed in the upper surface of the base 78, a back plate 79 and two vertical rods 80 located on the front side of the back plate 79 are vertically arranged on the base 78, the upper ends of the vertical rods 80 are fixedly connected with the front side of the back plate 79 through positioning plates 126, a moving platform 81 is arranged on the two vertical rods 80 in a penetrating and sliding mode, a connecting frame 82 is fixedly arranged on the upper portion of the front side of the back plate 79, a pressing rod 83 is arranged on the upper portion of the front side of the connecting frame 82, a handle sleeve 84 is arranged on the upper portion of the pressing rod 83, a shaft sleeve 85 is arranged on the lower portion of the front side of the connecting frame 82, a push-pull rod 86 is arranged in the shaft sleeve 85 in a penetrating and sliding mode, the lower end of the push-pull rod 86 is vertically fixed on the rear side of the upper surface of the moving platform 81, the upper end of the push-pull rod 86 is connected with the lower portion of the pressing rod 83 through a connecting plate 87, and two ends of the connecting plate 87 are respectively hinged to the upper end of the push-pull rod 86 and the lower portion of the pressing rod 83.
Be equipped with two power terminal 88 and two load terminal 89 on the base 78, set up on the base 78 with two power terminal 88 and two load terminal 89 bottom four through wires holes 90 that correspond from top to bottom, power voltage output positive pole 67 and power voltage output negative pole 68 are connected with a power terminal 88 through the first wire that passes two through wires holes 90 respectively with corresponding, load incoming end positive pole 69 and load incoming end negative pole 70 are connected with a load terminal 89 through the second wire that passes another two through wires holes 90 respectively with corresponding.
An insulating electrode mounting plate 91 is arranged on the upper surface of the moving platform 81, a group of left lotus head needle type electrodes 92 and right lotus head needle type electrodes 93 are respectively arranged on the left side and the right side of the insulating electrode mounting plate 91, the lower ends of the left lotus head needle type electrodes 92 and the right lotus head needle type electrodes 93 are respectively protruded out of the lower surface of the moving platform 81, the upper ends of the left lotus head needle type electrodes 92 and the right lotus head needle type electrodes 93 are respectively connected with flexible left electrode leading-out flat cables 94 and right electrode leading-out flat cables 95, and the lower ends of the left electrode leading-out flat cables 94 and the right electrode leading-out flat cables 95 are respectively connected with a power supply binding post 88 and a load binding post 89.
A signal board electric connection socket 96 is arranged on the right side of the base 78, and the signal board electric connection socket 96 is respectively connected with the left electrode leading-out flat cable 94 and the right electrode leading-out flat cable 95 through signal leading-out wires.
The base 78 is provided with a vent 97 located below the test fixture notch.
The left lotus flower head needle type electrode 92 and the right lotus flower head needle type electrode 93 are identical in structure, the right lotus flower head needle type electrode 93 comprises a cylindrical electrode body 98, an extraction electrode 99 connected with a right electrode extraction flat cable 95 is arranged at the upper end of the electrode body 98, an extraction electrode 99 connected with the right electrode extraction flat cable 95 is arranged at the upper end of the electrode body 98, a cylindrical groove is formed in the lower end of the electrode body 98 along the axis direction, a movable needle head 100 is inserted into the cylindrical groove, a spring 101 is arranged between the upper end of the movable needle head 100 and the bottom of the cylindrical groove, and the lower end of the movable needle head 100 is a lotus flower head-shaped electric contact surface 102.
The test signal output observation unit 52 comprises a signal board connection flat cable 103 and a test signal observation board 104, the left end of the signal board connection flat cable 103 is provided with a signal board electric connection plug 105 inserted in the signal board electric connection socket 96, the right end of the signal board connection flat cable 103 is provided with a dock expansion connection socket 106, the left end of the test signal observation board 104 is provided with a dock expansion connection plug-in 107, the dock expansion connection plug-in 107 is inserted in the dock expansion connection socket 106, and the upper surface of the test signal observation board 104 is provided with a row of double-reed socket electrodes 108.
The docking expansion connecting plug 107 comprises a plug board 109, a plurality of positioning slots 110 are uniformly arranged on the left end edge of the plug board 109 at intervals along the front-back direction, a positioning hole 111 is respectively arranged on the plug board 109 at the front side and the back side of the rear part of each positioning slot 110, and a gold-plated contact electrode sheet 112 is arranged on the plug board 109 right behind each positioning hole 111.
The dock expansion connection socket 106 comprises a socket base 113 fixedly arranged on the upper surface of the right end of the signal plate connection flat cable 103, the front end and the rear end of the left side of the socket base 113 are respectively provided with a positioning plate 114, a cover plate 115 is arranged between the two positioning plates 114, the front side and the rear side of the cover plate 115 are respectively provided with a positioning groove matched with the positioning plates 114, a buckle plate 116 is rotatably connected between the two positioning plates 114 through a hinge shaft 118, the right side of the middle part of the buckle plate 116 is provided with a wrench 117, the hinge shaft 118 is fixedly connected with the buckle plate 116, the outer profile of the cross section of the hinge shaft 118 is formed by connecting a round shape and a straight line segment, the lower surface of the buckle plate 116 is provided with an elastic convex edge strip 119 for pressing the upper surface of the cover plate 115, a slot 120 with an opening at the right end is formed between the cover plate 115 and the socket base 113, tongue contact electrodes 121 correspondingly matched with the gold-plating contact electrode plates 112 one by one to one are arranged in the slot 120, the right end of the tongue contact electrode 121 is upwards tilted upwards to form an insertion opening 122 with the socket base 113, the left side of the upper surface of the socket base 113 is provided with a positioning clamping table 123 which is in one-to-one corresponding positioning fit with the positioning clamping groove 110, the lower surface of the cover plate 115 is provided with an arc-shaped bump 124 which is in one-to-one corresponding clamping fit with the positioning hole 111, and the signal plate connecting flat cable 103 is provided with an electrode leading-out pin 125 which is correspondingly linked with each reed contact electrode 121.
The control host 50 is an input-output device that integrates three necessary functions. An adjustable voltage of 0-30V can be output. The electronic load can simulate a resistive load of 0-10 kilo-ohms, and the load strength gear selection button 71 is adjustable in three gears, namely 0-200K, 100-2K and 2K-10K.
The load control module 56 controls the load current and voltage to a given value by the load control module 56, and then the load current and voltage are led to the power driving module 54, the array of the power driving module 54 (power tube and load) generates a larger power, and naturally generates a larger amount of heat, and the heat is transferred to the outside of the box 53 by the close-contact heat radiator 63. And the stable operation of each part of circuit is ensured. The air blowing fan 77 blows air into the air guide passage of the radiator 63, and the air flow brings out the heat emitted from the outer cylinder 73 through the air outlet. The inner wall of the outer cylinder 73 and the outer wall of the inner cylinder 74 are provided with air flow guide grooves 75, so that a good air guiding effect is achieved, the heat dissipation area of the heat radiator 63 can be increased, and the heat dissipation effect is improved.
The output voltage adjusting knob 64 and the output current adjusting knob 65 are connected to the adjusting circuit of the switching power supply control module 55, and adjust the voltage and current output. The output voltage and current each have three significant digits which are displayed on an output voltage digital display screen 59 and an output current digital display screen 60, respectively.
The adjustment of the load intensity is effected by a load intensity range selection button 71 connected to an internal input circuit of the load control module 56. The actual voltage and current levels applied to the internal load circuit are displayed by three digits on a load voltage digital display 61 and a load current digital display 62, respectively.
The soldering iron interface 72 is used to connect the heating power connection of a circuit quick-soldering apparatus.
When the circuit board is tested, a standard board 127 of the test circuit building platform is horizontally placed in a test positioning notch, a handle sleeve 84 is held by a hand to press a pressure lever 83 downwards, the pressure lever 83 drives a push-pull rod 86 to move downwards along a shaft sleeve 85 through a connecting plate 87, the push-pull rod 86 drives a moving platform 81 to move downwards along two vertical rods 80, a group of left lotus head needle type electrodes 92 and a group of right lotus head needle type electrodes 93 which are installed on the moving platform 81 also move downwards along with the movement of the left lotus head needle type electrodes 92 and the group of right lotus head needle type electrodes 93, a movable needle 100 at the lower ends of the left lotus head needle type electrodes 92 and the group of right lotus head needle type electrodes 93 are pressed on gold-plated electrode sheets on the standard board 127 of the test circuit building platform, so that related signals are connected to the left lotus head needle type electrodes 92 and the group of right lotus head needle type electrodes 93 on the moving platform 81 on the standard board 127 of the test circuit building platform and are respectively led into a base 78 through a left electrode lead-out flat cable 94 and a right electrode lead-out flat cable 95, electrical signal board connection sockets 96 on the sides of the base 78, power terminals 88 and load terminals 89. The standard board 127 of the test circuit building platform is an independent universal test circuit board, a circuit to be debugged can be built on the standard board, and all input and output signals and observation signals are led out through the gold-plated electrode plates 128 distributed on the periphery of the standard board.
The springs 101 in the left and right lotus-headed needle electrodes 92 and 93 prop against the movable needle 100, so that the movable needle 100 moves up and down and is pressed against the gold-plated electrode sheet 128 of the standard board 127 of the test circuit building platform. The design mode that the lower end of the movable needle 100 is provided with the lotus-head-shaped electric contact surface 102 is larger than the contact area of the traditional single needle, and the connection is more reliable in such a structural mode. The vent 97 builds the platform standard 127 for the test circuit in the test process to dissipate heat.
Adopt the gliding structure of hand multi-bar direction, the operation of being convenient for, safe and reliable, this circuit board test fixture 51 has solved the unfavorable condition that often meets among the circuit debugging process, frequently dismantles when test circuit builds platform standard plate 127 and needs to modify promptly, and the signal is repeatedly connected and is corresponded, obvious reduce efficiency. In test circuit built platform standard plate 127 level was placed the test positioning notch, can dismantle test circuit built platform standard plate 127 fast, to frequently using the welding mode to modify device and circuit connection relation on test circuit built platform standard plate 127 among the debugging process, very big improvement efficiency to reduce the unreliability of test circuit board and external instrument signal connection, reduce the signal interference that appears under this kind of condition, lead to producing adverse effect to the debugging.
The 15 observation signals externally connected to the double-reed socket electrodes 108 of the test signal observation board 104 are led out through the docking expansion board plug, connected to the docking expansion connection sockets 106 of the signal board connection cables 103, and further connected to the signal board electrical connection sockets 96 of the circuit board test fixture 51 through the signal board electrical connection plugs 105.
The test circuit builds a platform standard board 127 and a test signal observation board 104, and the two parts are circuit boards specially designed for debugging in the instrument. The standard board 127 of the test circuit building platform is designed for building a test circuit, and power and signals are led out by contacting the left lotus-headed needle type electrode 92 and the right lotus-headed needle type electrode 93 through gold-plated electrode plates 128 which are arranged in a certain sequence on the board. The test signal observation board 104 is used for observing the internal signal state of the built test circuit by using external instruments (oscilloscopes, voltmeters and the like), and instrument probes and measuring needles can be conveniently and directly connected to a row of double-reed bayonet electrodes 108.
The docking expansion connecting plug 107 and the docking expansion connecting socket 106 are inserted into a slot 120 formed between a cover plate 115 and a socket base 113 through an inserting plate 109, a gold-plated contact electrode sheet 112 on the inserting plate 109 is contacted with a reed contact electrode 121 and is matched with a positioning clamping table 123 through a positioning clamping groove 110, and an arc-shaped bump 124 is matched with a positioning hole 111 to achieve good positioning contact, in order to make the gold-plated contact electrode sheet 112 and the reed contact electrode 121 closely contacted, in addition, a buckle plate 116 is driven to rotate through a spanner 117, the cover plate 115 is pressed downwards through an elastic convex edge strip 119, as the buckle plate 116 rotates, the hinge shaft 118 is driven to rotate, the outer profile of the cross section of the hinge shaft 118 is formed by connecting a round shape and a straight line segment, thus when the buckle plate 116 rotates and slightly inclines downwards to press the cover plate 115, the straight line segment of the hinge shaft 118 plays a role of preventing the hinge shaft 118 from overturning, thereby achieving good pressing effect. When it is desired to remove the docking expansion connector 107 from the docking expansion connector receptacle 106, the wrench 117 is pulled upward, the locking plate 116 is flipped upward, and the arc-shaped protrusion 124 of the lower surface of the cover plate 115 is removed from the positioning hole 111, so that the docking expansion connector 107 can be withdrawn. By adopting the connecting structure, the connection is not only tight and reliable, but also can bear certain tensile force, and the connection interruption caused by external force or dead weight is avoided.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (3)
1. The multifunctional integrated circuit debugging instrument is characterized in that: the test device comprises a control host, a circuit board test fixture and a test signal output observation unit; the test signal output end of the circuit board test fixture is connected with the signal input end of the test signal output observation unit;
the control host comprises a cuboid box body, a power driving module, a switching power supply control module, a load control module and a welder constant-temperature heating module are arranged in the box body, a 220V power line extending out of the box body backwards is connected to the rear side of the power driving module, and a radiator in contact with the power driving module is arranged at the rear part in the box body; the load control module is connected with the power driving module and is respectively connected with the switching power supply control module and the welder constant-temperature heating module;
an output voltage digital display screen, an output current digital display screen, a load voltage digital display screen, a load current digital display screen, an output voltage adjusting knob, an output current adjusting knob, a load intensity adjusting knob, a power voltage output anode, a power voltage output cathode, a load access end anode, a load access end cathode, a load intensity gear selecting button and a welding iron interface are arranged on the front side panel of the box body, and an interface electrode needle is arranged in the welding iron interface;
the internal circuit of the switch power supply control module is respectively connected with a power supply voltage output positive electrode, a power supply voltage output negative electrode, an output voltage adjusting knob, an output current adjusting knob, an output voltage digital display screen and an output current digital display screen;
the internal circuit of the load control module is respectively connected with the anode of the load access end, the cathode of the load access end, a load voltage digital display screen, a load current digital display screen and a load intensity gear selection button;
the soldering device constant temperature heating module is connected with an interface electrode needle in a soldering iron interface;
the radiator comprises an outer square barrel and an inner square barrel which are arranged along the vertical direction along the central line, the upper end and the lower end of the outer square barrel and the upper end and the lower end of the inner square barrel are blocked, the rear sides of the outer square barrel and the inner square barrel are open, a diversion channel with a section in a channel steel shape is formed between the outer square barrel and the inner square barrel, the rear sides of the outer square barrel and the inner square barrel are fixedly connected to the inner wall of the rear side panel of the box body, airflow guide grooves are formed in the inner wall of the outer square barrel and the outer wall of the inner square barrel, an air outlet and an air inlet which are respectively communicated with the two sides of the diversion channel are formed in the rear side panel of the box body, a grid is arranged at the air outlet, and an air supply fan which is positioned at the rear side of the air inlet and blows air into the air inlet is formed in the rear side panel of the box body;
the circuit board test fixture comprises a horizontally arranged base, a test positioning notch is formed in the upper surface of the base, a back plate and two vertical rods located on the front side of the back plate are vertically arranged on the base, the upper ends of the vertical rods are fixedly connected with the front side of the back plate through a positioning plate, a moving platform is arranged on the two vertical rods in a penetrating and sliding mode, a connecting frame is fixedly arranged on the upper portion of the front side of the back plate, a pressure rod is arranged on the upper portion of the front side of the connecting frame, a handle sleeve is arranged on the upper portion of the pressure rod, a shaft sleeve is arranged on the lower portion of the front side of the connecting frame, a push-pull rod is arranged in the shaft sleeve in a penetrating and sliding mode, the lower end of the push-pull rod is vertically fixed on the rear side of the upper surface of the moving platform, the upper end of the push-pull rod is connected with the lower portion of the pressure rod through a connecting plate, and two ends of the connecting plate are respectively hinged with the upper end of the push-pull rod and the lower portion of the pressure rod;
the base is provided with two power supply wiring terminals and two load wiring terminals, four threading holes which vertically correspond to the bottoms of the two power supply wiring terminals and the two load wiring terminals are formed in the base, a power supply voltage output positive electrode and a power supply voltage output negative electrode are respectively connected with one power supply wiring terminal through first wires which penetrate through the two threading holes, and a load access end positive electrode and a load access end negative electrode are respectively connected with one load wiring terminal through second wires which penetrate through the other two threading holes;
an insulating electrode mounting plate is arranged on the upper surface of the moving platform, a group of left lotus flower head needle type electrode and right lotus flower head needle type electrode are respectively arranged on the left side and the right side of the insulating electrode mounting plate, the lower ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode both protrude out of the lower surface of the moving platform, the upper ends of the left lotus flower head needle type electrode and the right lotus flower head needle type electrode are respectively connected with a flexible left electrode leading-out flat cable and a flexible right electrode leading-out flat cable, and the lower ends of the left electrode leading-out flat cable and the right electrode leading-out flat cable are both connected with a power supply binding post and a load binding post;
the right side of the base is provided with a signal board electric connection socket which is respectively connected with the left electrode lead-out flat cable and the right electrode lead-out flat cable through signal lead-out wires;
the test signal output observation unit comprises a signal board connecting flat cable and a test signal observation board, wherein the left end of the signal board connecting flat cable is provided with a signal board electric connection plug inserted in the signal board electric connection socket, the right end of the signal board connecting flat cable is provided with a dock expansion connection socket, the left end of the test signal observation board is provided with a dock expansion connection plug, the dock expansion connection plug is inserted in the dock expansion connection socket, and the upper surface of the test signal observation board is provided with a row of double-reed socket electrodes;
the docking type expansion connecting plug-in comprises a plug board, a plurality of positioning clamping grooves are uniformly arranged at intervals along the front-back direction at the edge of the left end of the plug board, a positioning hole is respectively arranged on the plug board at the front side and the back side of the rear part of each positioning clamping groove, and a gold-plated contact electrode plate is arranged right behind each positioning hole on the plug board;
the dock expansion connection socket comprises a socket base fixedly arranged on the upper surface of the right end of a signal board connection flat cable, the front end and the rear end of the left side of the socket base are respectively provided with a positioning plate, a cover plate is arranged between the two positioning plates, the front side and the rear side of the cover plate are respectively provided with a positioning groove matched with the positioning plates, a buckle plate is rotatably connected between the two positioning plates through a hinge shaft, a wrench is arranged on the right side of the middle part of the buckle plate, the hinge shaft is fixedly connected with the buckle plate, the outer contour of the cross section of the hinge shaft is formed by connecting a circular part and a straight line part, the lower surface of the buckle plate is provided with an elastic convex edge strip used for pressing the upper surface of the cover plate, a slot with an opening at the right end is formed between the cover plate and the socket base, the slot is internally provided with reed contact electrodes matched with gold-plated contact electrode plates in a one-to-one correspondence manner, the right ends of the reed contact electrodes are upwards tilted and form insertion holes with the socket base, and the left sides of the upper surface of the socket base are provided with positioning clamping grooves in a one-to-one-to-correspondence manner, the lower surface of the cover plate is provided with arc-shaped convex blocks which are in one-to-one corresponding clamping fit with the positioning holes, and the signal plate connecting flat cable is provided with electrode leading-out needles which are correspondingly linked with each reed contact electrode.
2. The multifunctional integrated circuit debugger according to claim 1, wherein: the base is provided with a vent hole positioned below the test positioning notch.
3. The multifunctional integrated circuit debugger according to claim 1 or 2, wherein: the structure of the left lotus flower head needle type electrode is the same as that of the right lotus flower head needle type electrode, the right lotus flower head needle type electrode comprises a cylindrical electrode body, an extraction electrode connected with a right electrode extraction flat cable is arranged at the upper end of the electrode body, an extraction electrode connected with the right electrode extraction flat cable is arranged at the upper end of the electrode body, a cylindrical groove is formed in the lower end of the electrode body along the axis direction, a movable needle head is inserted into the cylindrical groove, a spring is arranged between the upper end of the movable needle head and the bottom of the cylindrical groove, and the lower end of the movable needle head is a lotus flower head-shaped electric contact surface.
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| CN201610706961.3A CN106324480B (en) | 2016-08-23 | 2016-08-23 | Multifunctional integrated circuit debugging instrument |
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| CN201610706961.3A CN106324480B (en) | 2016-08-23 | 2016-08-23 | Multifunctional integrated circuit debugging instrument |
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| CN106324480B true CN106324480B (en) | 2022-05-03 |
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| CN201610706961.3A Expired - Fee Related CN106324480B (en) | 2016-08-23 | 2016-08-23 | Multifunctional integrated circuit debugging instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106990366A (en) * | 2017-05-15 | 2017-07-28 | 惠州市忠邦电子有限公司 | Power supply electric property detecting system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1049838A1 (en) * | 1982-04-16 | 1983-10-23 | Организация П/Я Х-5263 | Device for checking integrated circuit |
| US5130645A (en) * | 1990-08-13 | 1992-07-14 | Vlsi Technology, Inc. | Integrated circuit built-in self-test structure |
| US7400135B1 (en) * | 2007-02-23 | 2008-07-15 | Quality One Test Fixturing, Inc. | Test fixture and method for circuit board testing |
| CN102734710A (en) * | 2012-07-02 | 2012-10-17 | 大连唯思德节能科技有限公司 | Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage |
| CN202563064U (en) * | 2012-04-17 | 2012-11-28 | 无锡市大元广盛电气有限公司 | Test tooling for frequency converter driver board |
| CN202563073U (en) * | 2012-05-11 | 2012-11-28 | 伟顺(中国)机电设备有限公司 | Load tester |
| CN204203419U (en) * | 2014-11-03 | 2015-03-11 | 杭州九固科技有限公司 | A kind of PCB proving installation of modularization framework |
| CN204833889U (en) * | 2015-07-06 | 2015-12-02 | 张伟 | DIY singlechip development operation platform |
| CN105629149A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Circuit module test bench |
| CN206515433U (en) * | 2016-08-23 | 2017-09-22 | 黄河科技学院 | Multifunctional comprehensive circuit debugging instrument |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW227075B (en) * | 1993-01-13 | 1994-07-21 | Whitaker Corp | Receptacle contact and connector using the same |
| CN2184992Y (en) * | 1993-10-11 | 1994-12-07 | 海尔集团青岛空调器厂 | Self locking plug-in connetor |
| JP2002071749A (en) * | 2000-08-29 | 2002-03-12 | Molex Inc | Socket for evaluating test of ic package |
| US7116120B1 (en) * | 2005-09-07 | 2006-10-03 | Agilent Technologies, Inc. | Clamping test fixture for a high frequency miniature probe assembly |
| CN201374023Y (en) * | 2008-10-23 | 2009-12-30 | 鸿富锦精密工业（深圳）有限公司 | Expansion card fixing device |
| CN201898227U (en) * | 2010-10-25 | 2011-07-13 | 周金隆 | Connector |
| CN104834354B (en) * | 2015-04-22 | 2018-07-06 | 陕西理工学院 | A kind of multifunctional notebook computer docking station |
| CN205335526U (en) * | 2016-01-20 | 2016-06-22 | 江苏捷仕泰电子科技有限公司 | Connector |
-
2016
- 2016-08-23 CN CN201610706961.3A patent/CN106324480B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1049838A1 (en) * | 1982-04-16 | 1983-10-23 | Организация П/Я Х-5263 | Device for checking integrated circuit |
| US5130645A (en) * | 1990-08-13 | 1992-07-14 | Vlsi Technology, Inc. | Integrated circuit built-in self-test structure |
| US7400135B1 (en) * | 2007-02-23 | 2008-07-15 | Quality One Test Fixturing, Inc. | Test fixture and method for circuit board testing |
| CN202563064U (en) * | 2012-04-17 | 2012-11-28 | 无锡市大元广盛电气有限公司 | Test tooling for frequency converter driver board |
| CN202563073U (en) * | 2012-05-11 | 2012-11-28 | 伟顺(中国)机电设备有限公司 | Load tester |
| CN102734710A (en) * | 2012-07-02 | 2012-10-17 | 大连唯思德节能科技有限公司 | Active-radiating LED (light-emitting diode) streetlamp light source with independent air flow passage |
| CN105629149A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Circuit module test bench |
| CN204203419U (en) * | 2014-11-03 | 2015-03-11 | 杭州九固科技有限公司 | A kind of PCB proving installation of modularization framework |
| CN204833889U (en) * | 2015-07-06 | 2015-12-02 | 张伟 | DIY singlechip development operation platform |
| CN206515433U (en) * | 2016-08-23 | 2017-09-22 | 黄河科技学院 | Multifunctional comprehensive circuit debugging instrument |
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|---|---|
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Effective date of registration: 20221222 Address after: Room 803, Building 2, Zone C, Intersection of Kangping Road and Yongping Road, Zhengdong New District, Zhengzhou City, Henan Province, 450000 Patentee after: Henan Jie'an New Energy Technology Co.,Ltd. Address before: 450005 No. 94 Hanghai Middle Road, Erqi District, Zhengzhou City, Henan Province Patentee before: HUANGHE S & T College |
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